DEEP HOLE DEVICE FOR MACHINING OF ELECTRONIC LOCK

WIPO Patent Application WO/2022/088164

A1

A deep hole device for machining of an electronic lock, comprising a base (1) and a workbench (2); the workbench (2) is arranged on the base (1), moving bases (3) are symmetrically arranged at two sides of the workbench (2), and a plurality of fixing rods (4) are arranged at the side of each moving base (3) close to the workbench (2); a compression spring (5) is fixedly connected to one end of each fixing rod (4), a hinge member (6) is fixedly connected to the other end of the compression spring (5), and an anti-slip rubber base (7) is hinged to the hinge member (6); the fixing rod (4) is arranged on the moving base (3) in a penetrating manner, and a rotating rod (8) is hinged to a joint between the fixing rod and the moving base; a lifting/lowering rod (9) is arranged inside the moving base (3), a lifting/lowering device (10) is arranged at a lower position of the lifting/lowering rod (9), a dust removal tube (22) is arranged at one side above the workbench (2), and the dust removal tube (22) is in communication with a dust removal box body (23). The deep hole device improves the effect of fixing an electronic lock and prevents deviation of the electronic lock during machining, the deviation affecting the effect and efficiency of machining an inductor of the electronic lock; and the deep hole device can make adjustments according to electronic locks of different specifications, and has very good applicability.

JPH0929572	DEVICE FOR ADJUSTING POSITION OF JIG
JP2991944	[Title of Invention] Machine Vise [Claim 1] A fixed frame in which a work holding portion is projected on one end side of a work mounting surface, and a fixed frame. A movable frame that is mounted so as to be movable in the direction of sandwiching the work with respect to the fixed frame and that sandwiches the workpiece in cooperation with the workpiece sandwiching portion. A screw rod that pushes this movable frame toward the work holding portion, and It has a short side portion that is screwed into the screw rod, and a long side portion that extends from this short side portion to the lower part of the work holding portion and extends below the work mounting surface and substantially parallel to the screw rod. Equipped with a screw rod support frame The screw rod support frame is A portion in the middle of the long side portion in the longitudinal direction is pivotally supported by the fixed frame in the vicinity of the work holding portion by a support shaft extending parallel to the work mounting surface and perpendicular to the axis of the screw rod. With The tip of the long side portion abuts on the lower surface of the end portion of the work holding portion opposite to the movable frame. A machine vise characterized in that a bending moment generated in the screw rod support frame by a reaction force of a force that pushes the movable frame by the screw rod is input to the work holding portion. 2. A fixed frame in which a work holding portion is projected on one end side of a work mounting surface, and a fixed frame. A movable frame that is mounted so as to be movable in the direction of sandwiching the work with respect to the fixed frame and that sandwiches the workpiece in cooperation with the workpiece sandwiching portion. A screw rod that pushes this movable frame toward the work holding portion, and It has a short side portion that is screwed into the screw rod, and a long side portion that extends from this short side portion to the lower part of the work holding portion and extends below the work mounting surface and substantially parallel to the screw rod. Equipped with a screw rod support frame The screw rod support frame is The tip of the long side portion is fixed to the lower surface of the work holding portion, and a bending moment generated in the screw rod supporting frame by the reaction force of the force by which the screw rod pushes the movable frame is input to the work holding portion. A machine vise characterized by doing. The present invention relates to a machine vise that is placed on a table of a machine tool to fix a work, and more particularly to a machine vise that can fix a work with high accuracy. Conventionally, a small machine vise 1 as shown in FIG. 8 has been used to fix a workpiece to be machined on a table of a machine tool or to fix a workpiece on a surface plate in a detailed inspection or the like. .. The machine vise 1 is arranged so as to face the fixed frame 4 in which the work sandwiching portion 3 for sandwiching the work 2 is projected at one end, and the workpiece sandwiching portion 3, and the fixed frame. It is provided with a movable holding portion 5 that is slidable in a direction of holding the work 2 with respect to 4, and a screw rod 6 that pushes the movable holding portion 5 toward the work holding portion 3. One end of the screw rod 6 is connected to the movable holding portion 5, and a portion in the middle of the longitudinal direction thereof is connected to a screw rod support portion 7 projecting from the other end of the fixed frame 4. It is screwed. As a result, the movable grip portion 5 can be displaced toward the work holding portion 3 by rotating the screw rod 6, and the work 2 can be tightened and fixed by the work holding portion 3 and the movable holding portion 5. However, in the machine vise 1 described above, the reaction force of the force for tightening the work 2 is projected from the work holding portion 3 protruding from one end of the fixed frame 4 and the reaction force from the other end. Since it is received by the screw rod support portion 7, the fixed frame 4 bends as the tightening force of the work 2 is increased, as shown in FIG. As a result, the work contact surfaces 3a and 5a of the work holding portion 3 and the movable holding portion 5 cannot be kept parallel to each other, so that the lower part of the work 2 is strongly tightened, but the upper part of the work 2 cannot be tightened. It ends up. Further, since the movable holding portion 5 is lifted from the work mounting surface 4a of the fixed frame 4, the work 2 is also lifted from the work mounting surface 4a. That is, in the conventional machine vise 1 described above, since the fixed frame 4 gradually bends as the force for tightening the work 2 is increased, the work 2 cannot be tightened with a uniform tightening force in the vertical direction, or the work 2 works. There is a problem that the work 2 cannot be fixed with high accuracy because it floats from the mounting surface 4a. Therefore, an object of the present invention is to solve the problems of the prior art and to provide a machine vise capable of tightening and fixing the work with high accuracy without bending the fixed frame even if the force for tightening the work is strengthened. To provide. [Means for solving problems] In order to solve the above problems, the machine vise according to claim 1 of the present invention has a fixed frame in which a work holding portion is projected on one end side of a work mounting surface, and a work piece for the fixed frame. A movable frame that is mounted so as to be movable in the holding direction and that holds the work in cooperation with the work holding portion, a screw rod that pushes the movable frame toward the work holding portion, and a screw rod. A screw rod support frame having a short side portion to be screwed and a long side portion extending from this short side portion to the lower part of the work holding portion and extending substantially parallel to the screw rod below the work mounting surface. And. The screw rod support frame is a support shaft whose long side portion extends in the middle in the longitudinal direction in the vicinity of the work holding portion in parallel with the work mounting surface and perpendicular to the axis of the screw rod. The tip of the long side portion abuts on the lower surface of the end portion of the work holding portion opposite to the movable frame, and the screw rod pushes the movable frame. The bending moment generated in the screw rod support frame by the reaction force of the moving force is input to the work holding portion. Further, in order to solve the above problems, the machine vise according to claim 2 of the present invention has a fixed frame in which a work holding portion is projected on one end side of a work mounting surface, and a fixed frame. A movable frame that is mounted so as to be movable in the direction of holding the work and that holds the work in cooperation with the work holding portion, a screw rod that pushes the movable frame toward the work holding portion, and this screw. A screw rod having a short side portion screwed into the rod and a long side portion extending from the short side portion to the lower part of the work holding portion and extending substantially parallel to the screw rod below the work mounting surface. It is equipped with a support frame. Then, in the screw rod support frame, the tip of the long side portion is fixed to the lower surface of the work holding portion, and the screw rod is generated in the screw rod support frame by the reaction force of the force that pushes the movable frame. The bending moment is input to the work holding portion. [Action] In the machine vise according to claim 1 of the present invention, the reaction force of the force for tightening the work is input to the screw rod support frame via the screw rod. This reaction force acts as a tensile force on the long side portion of the screw rod support frame, and the long side portion is pivotally supported by the fixed frame below the work mounting surface of the fixed frame. As a result, the reaction force of the work tightening force acts only as a tensile force acting in a direction substantially parallel to the screw rod below the work mounting surface of the fixed frame, and no bending moment is applied to this portion. Therefore, the work mounting surface is not curved. Further, a bending moment generated by the reaction force of the work tightening force acts on the screw rod support frame. At this time, the long side portion of the screw rod support frame is pivotally supported in the middle of the longitudinal direction in the vicinity of the work sandwiching portion of the fixed frame, and the tip thereof abuts on the lower surface of the workpiece sandwiching portion of the fixed frame. There is. As a result, the bending moment generated by the reaction force of the work tightening force is input to the work holding portion of the fixed frame, and is balanced with the bending moment generated in the work holding portion by the work tightening force, so that the work mounting surface is curved. It is possible to prevent the work holding portion from tilting. Therefore, according to the machine vise according to claim 1 of the present invention, even if the force for tightening the work is increased, the work mounting surface does not bend and the work holding portion does not tilt, so that the work can be held with high accuracy. Can be fixed. In the machine vise according to claim 2 of the present invention, the tip of the long side portion of the screw rod support frame is fixed to the fixed frame below the work sandwiching portion of the fixed frame. As a result, the bending moment generated by the screw rod support frame due to the reaction force of the work tightening force is input to the work holding portion, and is balanced with the bending moment generated in the work holding portion by the work tightening force, so that the work mounting surface is curved. It is possible to prevent the work holding portion from tilting. Therefore, according to the machine vise according to claim 2 of the present invention, even if the force for tightening the work is increased, the work mounting surface does not bend and the work holding portion does not tilt, so that the work can be held with high accuracy. Can be fixed. [Example] An embodiment of the machine vise according to the present invention will be described in detail below with reference to FIGS. 1 to 7. As shown in FIG. 1, the machine vise 100 of the present embodiment is screwed to the fixed frame 10, the screw rod support frame 20 pivotally supported by the fixed frame 10, and the screw rod support frame 20. Between the mounted screw rod 30, the pushing member 40 pushed by the screw rod 30, the movable frame 50 pushed by the pushing member 40, and the pushing member 40 and the movable frame 50. It is equipped with a wedge member 60 interposed in the. As shown in FIGS. 1 and 5, the fixing frame 10 includes, for example, a bottom wall 11 fixed to a table of a machine tool and a pair of side walls 12 facing each other erected with respect to the bottom wall 11. A top wall 13 extending in parallel with the bottom wall 11 supported by the tip of the side wall 12 is provided. The upper surface 14 of the upper wall 13 is a work mounting surface on which the work W is mounted, and is a sliding surface on which the pushing member 40 and the movable frame 50 slide. Further, the screw rod support frame 20 is incorporated in the inner space 15 defined by the pair of side walls 12 and the upper wall 13. Further, as shown in FIG. 1, a work holding portion 16 is provided at the left end portion of the upper wall 13 in the drawing. As shown in FIG. 1, the screw rod support frame 20 has an L-shape when viewed from the side surface. The short side portion 21 is inserted into the through hole 13a formed in the upper wall 13 of the fixed frame 10 and protrudes upward. Further, as shown in FIG. 2, a pair of vertical walls 22 parallel to each other provided at the tip of the short side portion 21 are configured to sandwich the screw rod 30 in between. Further, the long side portion 23 of the screw rod support frame 20 has a U-shaped cross section as shown in FIG. 4, and is screwed in the inner space 15 of the fixed frame 10 as shown in FIG. It is arranged so as to extend substantially parallel to the rod 30. The long side portion 23 is pivotally supported by the support shaft 80 with respect to the fixed frame 10 in the middle portion in the longitudinal direction thereof. That is, as shown in FIG. 4, a pair of mounting holes having the same hole axes were formed in the pair of side walls 23a and 23a of the long side portions 23 facing each other, and were inserted through the pair of mounting holes. Both ends of the support shaft 80 are fitted into through holes of a pair of side walls 12 of the fixed frame 10. On the other hand, the tip 24 of the long side portion 23 is widened in the lateral direction as shown in FIG. 2, and is formed below the work holding portion 16 of the fixed frame 10 as shown in FIG. It is designed to come into contact with the downward facing lower surface 17. Further, on the upper surface of the top wall 23b forming the long side portion 23, in the vicinity of the short side portion 21, a convex portion 23c that comes into contact with the lower surface of the upper wall 13 of the fixed frame 10 is projected. As a result, although the screw rod support frame 20 is pivotally supported by the support shaft 80 with respect to the fixed frame 10, the screw rod support frame 20 is not rotated around the axis of the support shaft 80 with respect to the fixed frame 10. Has been done. As shown in FIG. 1, the screw rod 30 has a columnar shape having a smaller diameter than the screw portion 31 in which the square screw is screwed and the screw portion 31 provided at the left end portion shown in the drawing of the screw portion 31. It includes a tip 32 and a hexagonal columnar rear end 33 provided at the right end of the screw portion 31 as shown. Then, as shown in FIG. 2, the nut 34 screwed into the screw portion 31 is formed by a pair of pins 35 extending orthogonally and horizontally with respect to the axis of the screw rod 30 to form a pair of the screw rod support frame 20. It is oscillatingly supported on the vertical wall 22. On the other hand, as shown in an enlarged view in FIG. 3, a ball joint 37 having a built-in thrust bearing 36 is fitted to the tip 32 of the screw rod 30 and is fixed by a bolt 38 to prevent it from coming off. As shown in FIGS. 3 and 5, the pushing member 40 is integrally extended downward from both sides of the main body portion 41 having an inverted trapezoidal cross section and the main body portion 41 to form the fixed frame 10. It has an L-shaped engaging portion 42 that engages with the upper wall 13 when viewed from the axial direction of the screw rod 30. As a result, the pushing member 40 can slide on the work mounting surface 14 without being lifted from the work mounting surface 14. Further, on the back surface 43 of the main body portion 41, a recess 44 that spherically fits with the ball joint 37 provided at the tip of the screw rod 30 is recessed. Then, after the ball joint 37 is fitted in the recess 44, the ball joint 37 is prevented from coming off by screwing the fixing plate 45 to the back surface 43, and the pushing member 40 and the screw rod 30 are relatively shaken. It can be movably connected. On the other hand, as shown in FIG. 3, the front surface 46 of the main body portion 41 opposite to the screw rod 30 has a gradient approaching the work holding portion 16 of the fixed frame 10 as the distance from the work mounting surface 14 upwards increases. It is said to be a given inclined surface 46. The inclined surface 46 and the wedge member 60 are brought into surface contact with each other. Further, as shown in FIGS. 2 and 3, the pushing member 40 is engaged with the screw member 47 screwed to the side wall 50a of the movable frame 50. As a result, when the pushing member 40 is displaced toward the nut 34 by the screw rod 30, the movable frame 50 is made to move integrally with the pushing member 40. The movable frame 50 is a rectangular parallelepiped block that can slide on the work mounting surface 14, and inside the movable frame 50, a concave groove 51 that receives the screw rod 30 and the pushing member 40 are contained as shown in FIG. The internal space 52 that receives the is recessed. Further, the movable frame 50 has a thick front end wall 53, and a pair of lower surfaces 54 facing the work mounting surface 14 of the front end wall 53 are spaced apart from each other as shown in FIG. A receiving hole 55 is bored. Then, the coil spring 57 and the columnar pin 56 are slidably inserted into the receiving hole 55, and the columnar pin 56 faces the work mounting surface 14 from the lower surface 54 by the spring force of the coil spring 57. It is urged to protrude. Further, as shown in FIG. 2, a pair of receiving holes 55 are formed on the lower surface of the central portion of the movable frame 50 in the longitudinal direction so as to sandwich the screw rod 30, and the columnar pin 56 and the coil spring 57 are formed. And are inserted. The columnar pin 56 is urged by the spring force of the coil spring 57 so as to project from the lower surface 54 toward the work mounting surface 14. As a result, the movable frame 50 floats parallel to the work mounting surface 14 as shown in FIG. 1 when the movable frame 50 is not pressed by the pushing member 40. However, as shown in FIG. 4, since the locking plate 53d that engages with the upper wall 13 of the fixed frame 10 is screwed to the lower portion 53c of the movable frame 50 by the bolt 53e, the movable frame 50 is It is designed to float by a predetermined size with respect to the work mounting surface 14. As shown in FIG. 3, the wedge member 60 is a columnar member having a substantially trapezoidal cross section attached to the side surface 53a of the front end wall 53 of the movable frame 50 on the side of the pushing member 40. There is. The front surface 61 is in close contact with the inner side surface 53a of the front end wall 53, and the lower surface 62 is flush with the lower surface 54 of the front end wall 53. Further, the wedge member 60 engages with the stepped convex portion 53b provided in the lower part of the front end wall 53 so as to be integrally displaced downward with the front end wall 53. Further, the back surface 63 of the wedge member 60 is an inclined surface, and can be brought into close contact with the inclined surface 46 of the pushing member 40. At this time, the front surface 46 of the pushing member 40 and the back surface 63 of the wedge member 60 are brought closer to the work holding portion 16 of the fixed frame 10 as they move upward from the work mounting surface 14 as shown in FIG. It is an inclined surface that extends with an inclination with respect to the work mounting surface 14 given a gentle inclination. Therefore, a part of the pushing force that the pushing member 40 pushes the wedge member 60 is converted into a force that pushes the wedge member 60 against the work mounting surface 14. Then, as described above, since the wedge member 60 is integrally engaged with the front end wall 53 of the movable frame 50 so as to be displaced downward, when the wedge member 60 is pressed toward the work mounting surface 14. , The movable frame 50 is pressed toward the work mounting surface 14 against the urging force of the spring 57 that raises the movable frame 50 from the work mounting surface 14. Further, as shown in FIG. 1, an insertion hole 58 through which the screw rod 30 is inserted is formed at the rear end of the movable frame 50, and a bush 70 is attached coaxially with the insertion hole 58. .. The bush 70 is composed of a concentric outer ring 71 and an inner ring 72, and a bush rubber 73 interposed between them. The outer ring 71 is fixed to the end of the movable frame 50, and the inner ring 72 slides in the axial direction on the columnar portion 33a provided adjacent to the rear end 33 of the screw rod 30. It is inserted so that it can rotate freely and relative to the circumference. As a result, metal pieces and the like generated when the workpiece is machined are prevented from entering the inside of the machine vise 100 through the gap between the insertion hole 58 and the screw rod 30. Further, since the bush rubber 73 is made to bend, for example, even if the movable frame 50 is lifted from the work mounting surface 14 or the screw rod support frame 20 is bent and the screw rod 30 is tilted, the outer ring 71 and the inner ring 71 and the inner ring 71 are bent. It is designed to absorb the relative displacement with the ring 72. Next, the operation of the machine vise 100 of the present embodiment configured as described above will be described. First, when the work is not sandwiched, the movable frame 50 is slightly lifted from the work mounting surface 14 by the spring force of the coil spring 57, as shown in FIG. As a result, the work contact plate 59 attached to the front surface of the front end wall 53 is also slightly separated upward from the work mounting surface 14. In this state, when the work is placed on the work mounting surface 14, a handle (not shown) is attached to the rear end 33 of the screw rod 30 and the screw rod is rotated, the screw rod 30 holds the pushing member 40 in the work holding portion. Push towards 16. When the inclined surface 46 of the pushing member 40 comes into contact with the inclined surface 63 of the wedge member 60, the wedge member 60 and the movable frame 50 are displaced in the direction of sandwiching the work together with the pushing member 40, and the work hit. The contact plate 59 comes into contact with the work. Further, when the screw rod 30 is rotated and the work is pressed toward the work holding portion 16, the inclined surface 46 of the pushing member 40 and the inclined surface 63 of the wedge member 60 are strongly pressed against each other. Then, a part of the pressing force that the pushing member 40 pushes the wedge member 60 toward the work holding portion 16 causes the wedge member 60 to be placed on the work mounting surface 14 by the wedge action acting between the inclined surfaces 46 and 63. It is converted into a force that pushes toward. At this time, since the pushing member 40 cannot engage with the upper wall 13 of the fixed frame 10 forming the work mounting surface 14 and rise from the work mounting surface 14, both the wedge member 60 and the movable frame 50 work. It is pressed toward the mounting surface 14. Therefore, as shown in FIG. 6, the work W is pressed toward the work mounting surface 14 by frictional contact with the contact plate 59, and is tightened and fixed while being brought into close contact with the work mounting surface 14. That is, in the machine vise 100 of the present embodiment, the work W is pressed against the work mounting surface 14 to be brought into close contact with the work mounting surface 14, and the work holding portion 16 of the fixed frame 10 and the front end wall 53 of the movable frame 50 are used. Since the work W is tightened and fixed, the work W can be tightened and fixed without being lifted from the work mounting surface 14. By the way, as shown in FIG. 6, the reaction force F of the force that the screw rod 30 tightens and holds the work W is applied to the short side portion 21 of the screw rod support frame 20 via the nut 34 that is screwed into the screw rod 30. It works. The reaction force F acts as a tensile force on the long side portion 23 of the screw rod support frame 20, and the long side portion 23 is pivotally supported by the support shaft 80 on the fixed frame 10 as described above. As a result, the tensile force acting on the long side portion 23 acts as a tensile force acting on the side wall 12 of the fixed frame 10 in a direction substantially parallel to the screw rod 30, but no bending moment is applied. .. Therefore, in the machine vise 100 of the present embodiment, the reaction force F of the force for tightening the work W does not act on the upper wall 13 of the fixed frame 10 forming the work mounting surface 14, so that the work mounting surface 14 is used. Does not bend. Further, the axis of the screw rod 30 is located at a position away from the axis of the support shaft 80 that pivotally supports the screw rod support frame 20 on the fixed frame 10. As a result, the bending moment M generated by the reaction force F of the work tightening force acting on the screw rod 30 acts on the screw rod support frame 20 as a clockwise bending moment shown with respect to the axial center of the support shaft 80. However, as described above, since the tip 24 of the long side portion 23 of the screw rod support frame 20 is in contact with the lower surface 17 of the work holding portion 16, the screw rod support frame 20 rotates around the support shaft 80. There is no such thing, and the long side portion 23 of the screw rod support frame 20 simply bends. At the same time, the bending moment M generated by the reaction force F of the work tightening force acting on the work holding portion 16 acts on the work holding portion 16 as a bending moment in the counterclockwise direction shown with respect to the axial center of the support shaft 80. The shown counterclockwise bending moment acting on the work holding portion 16 and the illustrated clockwise bending moment acting on the screw rod support frame 20 are such that the work holding portion 16 and the screw rod supporting frame 20 are the work holding portion. Balanced by abutting each other on the lower surface 17 of 16. Therefore, in the machine vise 100 of the present embodiment, it is possible to prevent the work mounting surface 14 from bending and the work holding portion 16 from tilting due to the reaction force of the force for tightening the work. That is, according to the machine vise 100 of the present embodiment, the work mounting surface 14 is curved by the reaction force F of the force for tightening the work and the bending moment M generated by the reaction force F, and the work holding portion 16 is tilted. Can be prevented. Further, since the work W can be tightened and fixed while pressing the work W against the work mounting surface 14, the work W does not rise from the work mounting surface 14. Therefore, according to the machine vise 100 of this embodiment, the work can be fixed with high accuracy. Needless to say, the machine vise of the present invention is not limited to the above-described embodiment, and various modifications can be made based on the gist of the present invention. For example, as shown in FIG. 7, the tip 24 of the long side portion 23 of the screw rod support frame 20 may be brought into close contact with the lower surface 17 of the work holding portion 16 of the fixed frame 10 and screwed by the bolt 90. Not only can the same effect as the machine vise described above be obtained, but it can also be easily manufactured. Further, in the above-described embodiment, the wedge member 60 is interposed between the movable frame 50 and the pushing member 40, but the inclined surface 63 can be integrally processed on the front end wall 53 of the movable frame 50. Then, the wedge member 60 can be eliminated. Further, without using the wedge action acting between the inclined surface 46 of the pushing member 40 and the inclined surface 63 of the wedge member 60, for example, the pushing member 40 is predetermined with respect to the front end wall 53 of the movable frame 50. It is easy for experts in this field to use a link mechanism that displaces the movable frame 50 toward the work mounting surface 14 when approaching more than a distance. Further, in the above-described embodiment, the urging means for raising the movable frame 50 from the work mounting surface 14 is independently provided, but for example, when the pushing member 40 is displaced relative to the movable frame 50, it is attached. The movable frame 50 may be brought closer to the work mounting surface 14 so that the urging force of the force means is lost. [Effect of the invention] Since the machine vise of the present invention is configured as described above, the work mounting surface is not deformed by the reaction force of the force for tightening the work. Further, since the bending moment generated in the work holding portion and the bending moment generated in the screw rod support frame by the reaction force of the force for tightening the work are balanced, the work mounting surface does not bend and the work holding portion does not tilt. Therefore, according to the machine vise of the present invention, the work can be sandwiched and fixed with high accuracy. [Simple explanation of drawings] [Figure 1] A vertical sectional view of an embodiment of a machine vise according to the present invention. [Figure 2] The plan view which shows by breaking the main part of the machine vise shown in FIG. [Fig. 3] The vertical sectional view which shows the main part of the machine vise shown in FIG. 1 in an enlarged manner. [Fig. 4] Sectional view along the IV-IV arrow line of sight shown in Fig. 1. [Fig. 5] Sectional view along the VV arrow line of sight shown in Fig. 1. [Fig. 6] The vertical sectional view explaining the operation of the machine vise shown in FIG. [Fig. 7] Longitudinal section of another embodiment of the machine vise according to the present invention. [Fig. 8] Overall side view schematically showing a conventional machine vise. [Fig. 9] An overall side view schematically showing the problems of a conventional machine vise. [Explanation of symbols] 10 fixed frame 20 Screw rod support frame 30 screw rod 40 Pushing member 50 movable frame 60 Wedge member 70 bush 80 Axle 90 volt 100, 200 Machine vise of the present invention
JPH03245934	WORK HOLDER

WU GUANGDA (CN)

PCT/CN2020/125763

May 05, 2022

November 02, 2020

Click for automatic bibliography generation  

WU GUANGDA (CN)

B23Q3/06; B23B41/02; B23Q11/00

CN209919343U	2020-01-10
CN209110591U	2019-07-16
CN209830962U	2019-12-24
US20180333783A1	2018-11-22
CN111299645A	2020-06-19
CN108857547A	2018-11-23
CN110961692A	2020-04-07
CN210968003U	2020-07-10
CN211516136U	2020-09-18

HEFEI KERONG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)

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