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Title:
A VERTICAL MILLING MACHINE
Document Type and Number:
WIPO Patent Application WO/2023/048692
Kind Code:
A1
Abstract:
The invention relates to at least one vertical milling machine (1) that allows the machining of at least one workpiece by means of a cutting tool connected to at least one spindle (20) by positioning on at least one table (30). The novelty of the invention is characterized in that the said table (30) is fixed and the said spindle (20) comprises at least one movement mechanism (40) connected for each axis to move in at least one X axis (X) provided along the table (30), in the at least one Y axis (Y) provided perpendicular to each other in the floor plane (I) with the said X axis (X), and in the at least one Z axis (Z) provided perpendicular to this plane.

Inventors:
KAYMAZ ISMAIL (TR)
Application Number:
PCT/TR2022/095001
Publication Date:
March 30, 2023
Filing Date:
August 09, 2022
Export Citation:
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Assignee:
KAYMAZ MAKINE VE TEKSTIL SANAYI TICARET LTD STI (TR)
International Classes:
B23B39/02; B23Q5/04; B23Q15/00
Domestic Patent References:
WO2015002621A12015-01-08
Foreign References:
CN110340411A2019-10-18
EP2644317A12013-10-02
Attorney, Agent or Firm:
KAYA, Erdem (TR)
Download PDF:
Claims:
CLAIMS

1. At least one vertical milling machine (1) that allows the machining of at least one workpiece by means of a cutting tool (22) connected to at least one spindle (20) by positioning on at least one table (30), characterized in that the said table (30) is fixed and the said spindle (20) comprises at least one movement mechanism (40) for each axis to move in at least one X axis (X) provided along the table (30), in the at least one Y axis (Y) provided perpendicular to each other in the floor plane (I) with the said X axis (X), and in the at least one Z axis (Z) provided perpendicular to this plane.

2. A vertical milling machine (1) according to claim 1 , characterized in that the said movement mechanism (40) comprises at least one control rack (41 ) for transmitting the drive.

3. A vertical milling machine (1 ) according to claim 1 , characterized in that it comprises at least one dividing head (not shown in the figures) that can be positioned on the table for machining the workpiece by rotating.

4. A vertical milling machine (1) according to claim 1 , characterized in that it is essentially an L-type milling cutter.

5. A vertical milling machine (1) according to claim 1 , characterized in that the said spindle (20) is essentially provided in the form of a ram's head.

8

Description:
A VERTICAL MILLING MACHINE

TECHNICAL FIELD

The invention relates to at least one vertical milling machine that allows the machining of at least one workpiece by means of a cutting tool connected to at least one spindle by positioning on at least one table.

PRIOR ART

Today, the machines used in machining are as advanced as possible, and there are milling machines that perform multiaxial machining in many enterprises. As the technology evolved, complex parts needed to be manufactured more quickly and precisely. Even if it is possible to manufacture parts with the desired precision as a result of the skill of the operator in conventional machines, it is not possible to manufacture parts with the same precision and in a shorter time.

Many different types of milling machines are produced to process large parts as a result of various needs. L-type milling machines can also be given as examples of such machines. To process large parts, different machines are used for parts with different weights, and each machine has a machining capacity. For this reason, the presence of different types of machines for each weight in the enterprises increases the cost.

CNC machines are widely used in sectors where materials such as metal, plastic, wood, and porcelain are produced. During the machining of the part in the machines, the part is machined by the system by following the programmed code prepared for the product to be produced without the operator manually operating the machine.

Computer Numerical Controlled (CNC) machines are part machining centers that can control the system by a programmed code. CNC machines operate within the specified cartesian coordinate system without the need for the operator's guidance by being programmed with the computer therein.

In order for the part to be machined on the machines, the machining part called the spindle shapes by machining the part connected to the table. The table moves in line with the coordinates given by the computer, allowing the spindle to lift chips from the part. The movement of the table is provided by threaded rods. Threaded rods and bearing elements are deformed quickly due to the size and weight of the parts. As a result of this deformation, the costs increase as a result of the wear of the machines and the replacement of parts.

In conclusion, all the above-mentioned problems have made it necessary to make an innovation in the relevant technical field.

BRIEF DESCRIPTION OF THE INVENTION

The present invention relates to the vertical milling machine to eliminate the above- mentioned disadvantages and bring new advantages to the relevant technical field.

An object of the invention is to provide at least one vertical milling machine capable of machining heavier workpieces than its counterparts.

Another object of the invention is to provide the vertical milling machine that prevents the deformation of the movement mechanism and the bearing elements in the direction of the table.

To realize all the objects that will emerge from the abovementioned and the following detailed description, the present invention is at least one vertical milling machine that allows the machining of at least one workpiece by means of a cutting tool connected to at least one spindle by positioning on at least one table. Accordingly, its novelty is that the said table is fixed and the said spindle comprises at least one movement mechanism (40) for each axis to move in at least one X axis provided along the table, in the at least one Y axis provided perpendicular to each other in the floor plane with the said X axis, and in the at least one Z axis provided perpendicular to this plane. Thus, it is ensured that the vertical milling machine can process heavier and larger volume workpieces compared to its equivalents, and the failure of the movement mechanism on the X axis under load during this machining is eliminated.

A possible embodiment of the invention is characterized in that the said movement mechanism comprises at least one control rack for transmitting the drive. The servomotor is used as the drive element. There is a precision reducer working with the servomotor. The said servomotor and reducer can be controlled precisely. Thus, the load on the bearing elements is reduced with lower inertia forces with gear transfers. In this way, the life of the bearing elements is increased. Thanks to the control rack used instead of the threaded rod, although the axis lengths are increased, the area covered by the machine is reduced.

Another possible embodiment of the invention is characterized in that it comprises at least one dividing head (not shown in the figures) which can be positioned on the table for rotation machining of the workpiece. Thus, in addition to the existing axes, CNC creates an additional axis to the machine tool and allows the part connected to the table to be machined from every angle.

Another possible embodiment of the invention is characterized in that it is essentially an L- type mill. Thus, it is easier to connect large and heavy parts to the machine and disassemble them again after the process.

Another possible embodiment of the invention is characterized in that the said spindle is provided essentially in the form of a ram's head. Thus, it can form additional axes in addition to the existing axes. It provides mobility in different axes.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 shows a representative perspective view of the vertical milling machine of the invention.

Figure 2 shows a representative side view of the vertical milling machine of the invention.

Figure 3 shows a representative front view of the vertical milling machine of the invention.

DETAILED DESCRIPTION OF THE INVENTION

In this detailed description, the vertical milling machine of the invention is explained with examples that do not have any limiting effect only for a better understanding of the subject matter.

Figure 1 shows a representative perspective view of the vertical milling machine (1) of the invention. The said vertical milling machine (1) serves as the machining of at least one workpiece. In a possible embodiment of the invention, the vertical milling machine (1) is the milling machine of L-type. Preferably, the vertical milling machine (1 ) may be a CNC (Computer controlled) device. There may be at least one control panel (50) on it to ensure that the vertical milling machine (1) can be commanded. The vertical milling machine (1) can be commanded by an operator by means of the said control panel (50).

There is at least one table (30) on the vertical milling machine (1 ) on which the workpiece can be placed. The said table (30) is essentially fixedly positioned on the vertical milling machine (1). It can be fixed on the said table (30) with elements such as a workpiece fastening shoe, clamp, and magnet. There is at least one machine body (10) and at least one spindle (20) on the vertical milling machine (1). The said machine body (10) may serve as the main chassis on which various elements are positioned to allow machining of the workpiece.

The said spindle (20) can be positioned on the machine body (10) and can be moved in at least one X axis (X), at least one Y axis (Y) and at least one Z axis (Z) with respect to the table (30). It is assumed that the said X axis (X) extends along the table (30). The said Y axis (Y) is assumed to be positioned perpendicular to each other in a floor plane (I) with the X axis (X). The said floor plane (I) is assumed to be parallel to the place where the vertical milling machine (1 ) is located. The said Z axis (Z) is essentially assumed to be the vertical axis provided perpendicular to the Y axis (Y). The movement of the spindle (20) in the X axis (X), Y axis (Y), and Z axis (Z) is provided by means of at least one movement mechanism

(40). The said movement mechanism (40) is essentially provided in multiple numbers on the vertical milling machine (1). These may be at least one first movement mechanism (40a), at least one second movement mechanism (40b), and at least one third movement mechanism (40c).

The said spindle (20) is essentially positioned on at least one spindle body (21) on the vertical milling machine (1 ). At least one cutting tool (22) is positioned on the spindle (20) to allow the workpiece to be machined. The cutting tool (22) can be an element that can machining by lifting chips from the workpiece. To do this, the cutting tool (22) may be configured to be rotated around itself by the spindle (20).

The said first movement mechanism (40a) enables the machine body (10) to move along the X axis (X) in the direction of the extension of the table (30). There is at least one control rack

(41 ) on the first movement mechanism (40a) that is driven by the operation of a drive element (not shown in the figures). The control rack (41) moves the machine body (10) along the X axis (X). The table (30) remains stationary. The machine body (10) is moved along the table (30) by means of the first movement mechanism (40a). The workpiece can be machined along the X axis (X) by moving the machine body (10) and accordingly the cutting tool (22) in the X axis (X) through the first movement mechanism (40a).

The said second movement mechanism (40b) enables the spindle (20) to move along the Y axis (Y) perpendicular to the X axis (X) with respect to the floor plane (I). In the second movement mechanism (40b), there is a control rack (41) that moves with the operation of the drive element. The spindle body (21) and the machine body (10) remain stationary during the movement. When the second movement mechanism (40b) operates, the spindle (20) moves on the spindle body (21). The table (30) remains fixed during this movement. Thanks to the second movement mechanism (40b), the spindle (20) is moved in the Y axis (Y) and the workpiece is machined in the Y axis (Y).

The said third movement mechanism (40c) enables the spindle body (22) to be moved in the Z axis (Z) perpendicular to the floor plane (I). There is also a control rack (41) on the third movement mechanism (40c), which is driven by the operation of the drive element. The control rack (41) moves the spindle body (22) along the Z axis (Z) on the machine body (10). During the movement, the spindle body (21 ) moves. The table (30) remains fixed during this movement. The third movement mechanism (40c) can be machined on the Z axis (Z) of the workpiece by moving the spindle body (22) along the Z axis (Z).

The code is entered by the operator on the said control panel (50) on the vertical milling machine (1). The code entered operates the drive element. There is a servomotor as the drive element. Servomotors are a movement-controlled mechanism in which variables such as output, mechanical position, speed or acceleration are controlled. There is a precision reducer together with the servomotor. The reducer is a closed gear assembly designed to reduce the high rotational speeds of the electric motors to the rotational speeds required for the machines. The precision reducer can adjust speed and torque in the vertical milling machine. Power is transferred from the working drive to the control rack (41). The drive area movement mechanism (40) from the control rack (41 ) is activated. The cutting tool (22) is moved in predetermined ways and processes the part on the table (30). Thanks to the fact that the table (30) is fixed, there is no problem depending on the weight of the movement mechanism (40) workpiece.

In a possible embodiment of the invention, the cutting tools (22) can perform different operations such as surface treatment, hole drilling, and tooth extraction. The control rack (41 ) is used in the vertical milling machine (1) to prevent the increase of inertia moments in long axis movements. The forces on the bearings are reduced. The maintenance cost of the vertical milling machine (1 ) is reduced.

The vertical milling machine (1 ) may have at least one dividing head (not shown in the figures). The said dividing head is positioned on the table (30). Additional axes can be added to the existing axes with the help of the dividing head on the table (30). It allows for easier machining by giving the workpiece a 360 degree angle. The dividing head allows forming of the workpiece by removing sawdust in different axes.

The spindle (20) can be provided in the form of at least one ram head (not shown in the figures) in the vertical milling machine (1 ). The said ram head may be configured to allow movement of the vertical milling machine (1) in different axes in addition to the operating axes. With the spindle (20) provided in the ram head type, it is ensured that heavy workpieces can be made in a single operation without the need for different milling machines and displacement.

Figure 2 shows a representative side view of the vertical milling machine (1) of the invention. The invention is the L-type milling machine. The invention is configured with a fixed table (30). Thus, it is ensured that the workpieces can be connected to the table (30) regardless of weight. After the process, the part can be removed without damaging the cutting tool (22).

With this embodiment, the axis lengths during the machining of the workpiece can be extended with the table being fixed on the vertical milling machine (1 ). Thus, a uniform vertical milling machine (1) is sufficient to process the desired weight of the part. Because the cutting tool (22) is mobile, it is eliminated that the movement mechanism (40) on the X axis (X) fails under load during a part machining.

The scope of protection of the invention is specified in the attached claims and cannot be limited to those explained for exemplary purposes in this detailed description. It is evident that a person skilled in the art may exhibit similar embodiments in light of the above- mentioned facts without departing from the main theme of the invention. REFERENCE NUMBERS GIVEN IN THE FIGURE

1 Vertical Milling Machine

10 Machine Body

20 Spindle

21 Spindle Body

22 Cutting Tool

30 Table

40 Movement Mechanism

41 Control Rack

40a First Movement Mechanism

40b Second Movement Mechanism

40c Third Movement Mechanism

50 Control Panel

(X) X Axis

(Y) Y Axis

(Z) Z Axis

(I) Floor Plane