KR102611327B1 - Fixing jig for milling machine - Google Patents

Abstract

The fixing jig for a milling machine according to an example of the present invention has a fixing part including a first groove and a second groove on a disk-shaped plate to adjust the space between the first groove and the second groove to seat and fix the workpiece. It has a technical feature that allows it to easily fix annular, circular, or workpieces of various shapes and sizes.

Description

Fixing jig for milling machine {FIXING JIG FOR MILLING MACHINE}

The present invention relates to a fixing jig for a milling machine, and more specifically, to a fixing jig for fixing various types of processing objects for milling processing.

A milling machine is a machine tool that rotates a milling cutter fixed to the main axis and gives cutting depth and feed to the workpiece (A) fixed to the table to cut the workpiece (A) into the required shape. It also performs surface cutting and groove cutting. ·Complicated cutting such as cutting is possible and has a wide range of uses.

In general, for accessories used in cutting tools or precision parts used in various machines and automobile engines, when the first workpiece (A) is formed by casting, the outer surface of the formed workpiece (A) is chamfered with a machine tool such as a milling machine. This concludes. Since these precision parts are precisely processed to meet minute dimensions, they often fail to join together even with minute errors.

Therefore, the precision part workpiece (A) is fixed using a jig to enable accurate face milling by a milling machine. Usually, the work is done by placing the workpiece (A) on the upper surface of the bed of the milling machine, but when detailed work is required, such as making small-sized or radius-shaped grooves such as precision parts, the jig is first fixed to the upper surface of the bed. Then, the workpiece (A) is mounted on the jig and the work is performed.

However, since conventional jigs are manufactured and used for one product, several problems are bound to occur. First, when face machining is performed on one workpiece (A) multiple times, a lot of cost is incurred because a jig suitable for each face machining process must be manufactured separately, and a lot of time is inevitably spent resetting the newly manufactured jig. There wasn't. In particular, when machining ring-shaped or circular precision parts, a separate vise and a suitable clamp or auxiliary jig must be used to fix the object to be processed in the jig. In the face machining operation, there is a problem in that efficient face machining is not achieved because the cutting position is not accurately maintained.

Republic of Korea Patent Publication No. 10-2109826

The present invention is a fixing jig for a milling machine, and its object is to provide technology regarding a fixing jig for a milling machine capable of fixing workpieces (A) of various sizes and shapes, including annular or circular workpieces (A).

In order to solve the above-described problem, the fixing jig for a milling machine according to an embodiment of the present invention includes a disc-shaped first plate 10, a second plate 20 mounted on the top of the first plate 10, and the The second plate 20 is formed of a plurality of blocks, and the plurality of blocks can be assembled or separated, and a first groove 31 and a second groove 32 are formed to fix the workpiece A, and the second groove 31 and the second groove 32 are formed. The first groove 31 has a cylindrical shape and is arranged at equal intervals from the center of the second plate 20 toward the circumference, and the second groove 32 is linear and arranged radially at equal intervals from the center, Penetrating portions 40 into which shafts 50 are inserted are disposed on the sides of the plurality of blocks so that the plurality of blocks can be assembled or separated. The shafts 50 include a plurality of shafts extending radially outward from the central axis. (50), in the shaft 50, the first groove 31 and the second groove 32 are opened depending on the shape and size of the workpiece A, so that the workpiece A can be seated and fixed, When the object to be processed is detached, the first groove 31 and the second groove 32 can be opened and closed.

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The fixing jig for a milling machine according to an example of the present invention is fixed to the top of the body of the machine, has a circular plate shape, is provided with first grooves 31 at equal intervals, and has a circular groove passing through the first grooves 31. The 2 grooves 32 are arranged at equal intervals to fit and couple the annular or circular object to be processed into the first groove 31 and the second groove 32, thereby providing separate fixation for milling of the annular or circular object to be processed. There is an advantage of not having to have a jig.

Furthermore, by adjusting the positions of the first groove 31 and the second groove 32 in response to the shape and size of various processing objects, processing objects of various shapes, including linear, can be easily and precisely fixed during milling processing. It has the advantage of significantly reducing tolerances that may occur.

Figure 1 is a schematic front view showing a fixing jig for a milling machine according to an embodiment of the present invention.
Figure 2 is a diagram showing an example in which a circular workpiece (A) is fixed to a fixing jig for a milling machine according to an embodiment of the present invention.
Figure 3 is a diagram showing the operation of adjusting the distance between the first groove 31 or the second groove 32 of a fixing jig for a milling machine according to another embodiment of the present invention.
Figure 4 is a diagram showing an example in which a circular workpiece (A) is fixed to a fixing jig for a milling machine according to another embodiment of the present invention.
The attached drawings are intended as reference for understanding the technical idea of the present invention, and are not intended to limit the scope of the present invention.

In describing the present invention, detailed descriptions of related known functions will be omitted if they are obvious to those skilled in the art and are judged to unnecessarily obscure the gist of the present invention.

Figure 1 is a schematic front view showing a fixing jig for a milling machine according to an embodiment of the present invention, and Figure 2 is a view showing a circular workpiece (A) fixed to a fixing jig for a milling machine according to an embodiment of the present invention. This is a drawing showing an example. Figure 3 is a diagram showing the operation of adjusting the distance between the first groove 31 and the second groove 32 of a fixing jig for a milling machine according to another embodiment of the present invention, and Figure 4 is another embodiment of the present invention. This is a diagram showing an example in which a circular workpiece (A) is fixed to a fixing jig for a milling machine according to an example. Hereinafter, a fixing jig for a milling machine according to an example of the present invention will be described with reference to the drawings.

A milling machine is a machine tool that rotates a tool to transport a workpiece fixed on a table and cuts the workpiece with a cutter. Therefore, a fixture to secure the workpiece is essential, and a jig is generally used. Related things to note when designing a jig are that milling is more likely to cause vibration during processing compared to processing using other machine tools, and continuous vibration makes it difficult to fix the jig, so precise positioning of the workpiece and reliable clamping are required. . Therefore, the clamping mechanism for the workpiece is an important mechanism as a milling fixture, but in general, when the shape is complex and large, the clamping mechanism is absolutely necessary, so there is an inconvenience in that separate clamping that matches the jig and processing object is required. In particular, in the design of the jig, the working area, table size, T-groove dimensions, type of milling machine, processing capacity, required precision of the workpiece, processing method, etc. are taken into consideration with respect to the details of the milling machine being used, and attachment and detachment is as short as possible. By choosing a structure that can be achieved in time, vibration during processing can be reduced and the tolerance due to vibration can be significantly reduced to improve the precision of the workpiece.

For this purpose, the present invention is a disk-shaped plate 10, and the plate includes a fixing part 30 constituting a first groove 31 and a second groove 32. In detail, the first grooves 31 are arranged at equal intervals from the center of the plate 10 outward and have a cylindrical shape. The second groove portion 32 may be linearly disposed at equal intervals on the outside of the plate 10 starting from the diameter of the center. Therefore, the first groove 31 and the second groove 32 have a structure that intersects each other. At this time, the workpiece A may be inserted and fixed into the first groove 31 and the second groove 32.

Accordingly, the annular or circular object to be processed can be seated in the first groove 31 formed on the disk-shaped plate 10 and simultaneously fitted and fixed. Alternatively, a workpiece (A) of a shape other than a circle or annular shape may also be seated, fitted, and fixed in the first groove portion 31 and/or the second groove portion 32. At this time, a firm connection can be achieved by fixing the workpiece (A) and the jig using clamping or additional fixing members.

Meanwhile, according to another embodiment of the present invention, the second plate 20, which is formed of a plurality of blocks forming the first groove 31 and the second groove 32, is moved on the first plate 10 to form various shapes and shapes. A workpiece (A) of any size can be fixed.

In detail, as described above, the second plate 20 is mounted on the top of the disk-shaped first plate 10. The second plate 20 is formed of a plurality of blocks, and the plurality of blocks have a structure that can be assembled or separated, and the plurality of blocks are assembled or separated to form the first groove portion 31 and the second groove portion 32. do. At this time, penetrating portions 40 through which the shaft 50 can be inserted and penetrated are disposed on the side surfaces of the plurality of blocks so that they can be assembled or separated on the first plate 10. The shaft 50 is a plurality of shafts 50 extending radially from a central axis, and a plurality of blocks can be inserted into the plurality of shafts 50 to be radially assembled or separated. That is, a plurality of blocks can move along the shaft 50 to expand or contract the space of the first groove 31 and/or the second groove 32, and the expanded or contracted first groove 31 and /Or the workpiece (A) may be seated, fitted, and fixed in the second groove 32, and the workpiece (A) of various shapes such as annular, circular, linear, etc. may be seated and fitted depending on the expanded or reduced size and/or shape. It can be fixed.

The first groove 31 has a cylindrical shape and may be disposed at equal intervals from the center of the second plate 20 toward the circumference. The second groove portion 32 may be linear and disposed radially from the center at equal intervals toward the outside of the plate. Therefore, the first groove 31 and the second groove 32 have a structure that intersects each other. At this time, as described above, the workpiece A may be inserted and fixed in the space formed by the first groove 31 and the second groove 32.

Meanwhile, an elastic member is placed on one side of the plurality of blocks and at the position of the second groove 32 so that the workpiece A can be fixed in the space formed by the first groove 31 and the second groove 32, so that the plurality of blocks They can be interconnected, and in the interconnected state, they can move through the shaft 50 and expand or contract the circle without being completely separated. For example, the elastic member may be an elastic material such as a spring. Therefore, when expanding a plurality of blocks, the first groove 31 and the second groove 32 are spread to form a space, and after seating the workpiece A in the space, a plurality of blocks are formed according to the size of the workpiece A. can be placed.

As described above, the space of the first groove 31 and the second groove 32 can be changed by expanding or contracting by moving along the shaft 50 in a state where a plurality of blocks are interconnected by elastic members, and the workpiece can be changed. By adjusting the gap according to the size and shape of (A), the workpiece (A) can be firmly fixed in the space formed by the first groove 31 and the second groove 32.

As described above, in the present invention, when the workpiece (A) is seated and fixed in the groove, the first groove 31 and the second groove 32 are opened in the shaft 50 according to the shape and size of the workpiece (A). The workpiece (A) can be inserted, seated, and fixed, and when the workpiece (A) is detached, the first groove 31 and the second groove 32 can be opened and closed. At this time, a more robust connection can be achieved by fixing the workpiece (A) by placing a fixing part 30 on one side of the plurality of blocks.

That is, the first groove 31 and the second groove 32 and a plurality of blocks are connected to each other by elastic members, so that the space between the first groove 31 and the second groove 32 can be expanded or reduced. , when the workpiece (A) is seated and fixed in any groove (first groove 31 and/or second groove 32) suitable for the size or shape of the workpiece (A) in the expanded or contracted state, the elastic member Due to the elasticity of the workpiece (A), strong fixation can be achieved while it is inserted into the space between the first groove 31 and the second groove 32, so a separate fixing material such as clamping is not used. It has the advantage of being able to be fixed without having to do anything.

As described above, by using the fixing jig for a milling machine of the present invention, workpieces (A) of various sizes or shapes can be fixed in one fixing jig, eliminating the inconvenience of having to attach and detach a different fixing jig for each workpiece (A). It is possible to solve the problem of intermittency in the process, which is interrupted for a long time due to desorption. Furthermore, since the workpiece (A) can be strongly fixed in the space controlled by the elastic member, processing costs can be reduced by eliminating the need for separate clamping tools for the workpiece (A) and the jig.

Meanwhile, the scope of protection of the present invention is not limited to the description and expression of the embodiments explicitly described above. In addition, it is once again added that the scope of protection of the present invention may not be limited due to changes or substitutions that are obvious in the technical field to which the present invention pertains.

10 Plate (1st plate)
20 2nd plate
30 fixing part
31 1st Home Department
32 2nd home department
40 penetration part
50 shaft
60 fixing member
A workpiece

Claims (2)

delete A disc-shaped first plate (10);
A second plate (20) mounted on the top of the first plate (10);
The second plate 20 is formed of a plurality of blocks, and the plurality of blocks can be assembled or separated, and a first groove 31 and a second groove 32 are formed to fix the workpiece A,
The first groove 31 has a cylindrical shape and is disposed at equal intervals from the center of the second plate 20 toward the circumference,
The second grooves 32 are linear and arranged radially at equal intervals from the center,
A penetrating part 40 into which a shaft 50 is inserted is disposed on the side of the plurality of blocks so that the plurality of blocks can be assembled or separated, and the shaft 50 has a plurality of plurality of blocks extending radially outward from the central axis. Shaft 50,
In the shaft 50, the first groove 31 and the second groove 32 are opened according to the shape and size of the workpiece A, so that the workpiece A can be seated and fixed, and the workpiece A can be attached and detached. In this case, a fixing jig for a milling machine in which the first groove portion 31 and the second groove portion 32 can be opened and closed.