KR102629143B1 - Apparatus for Machining Chain Link for Infinite - Google Patents

Abstract

The present invention relates to a processing device for chain links for caterpillar tracks, and more specifically, to fix chain links with a jig, form a stepped surface around the fixed chain link pinhole, and perform boring processing on the fastening hole. By performing this, step surface processing and boring processing can be performed sequentially with one processing device, and by installing two columns on the upper part of the base plate to face each other, LH type chain link and RH type chain link can be processed simultaneously. It is a processing device for chain links for endless tracks.

Description

Apparatus for Machining Chain Link for Infinite}

The present invention relates to a processing device for chain links for caterpillar tracks, and more specifically, to fix chain links with a jig, form a stepped surface around the fixed chain link pinhole, and perform boring processing on the fastening hole. By performing this, step surface processing and boring processing can be performed sequentially with one processing device, and by installing two columns on the upper part of the base plate to face each other, LH type chain link and RH type chain link can be processed simultaneously. It is a processing device for chain links for endless tracks.

In general, a caterpillar is called a caterpillar, and is a device that connects several steel plates like a belt and is used as a vehicle wheel.

This type of track uses chain links to transmit the power transmitted to the front and rear wheels to the steel plate. As shown in Figure 5, these chain links typically have pinholes and bush holes formed through them, and are coupled to the steel plate on the upper surface. A fastening hole is formed for .

The chain link is usually made by forging, and pinholes, bush holes, and fastening holes must be machined into the chain link made by forging. Conventionally, the pinholes and bush holes are machined using a boring device, and then the fastening hole is drilled again. Because it had to be processed using a device, it consumed a lot of processing time and made precise processing difficult, resulting in many defective products.

As a prior art proposed to solve this problem, there is a processing device for chain links for caterpillars proposed in Patent No. 10-1388514 previously filed by the present applicant.

In the patent, there is a processing device for processing a chain link for an endless track, the processing device includes a jig 40 for fixing the chain link 50, and a front tool rest 10 formed on the front of the jig 40. ) and a side tool rest 20 formed on the side of the jig 40, wherein the front tool rest 10 includes a pinhole processing unit 100 to which a pinhole processing tool 101 is coupled, The bush hole processing part 200 to which the bush hole processing tool 201 is coupled is formed at the same time, so that the pinhole 51 and the bush hole 52 of the chain link 50 are simultaneously processed, and the side tool rest (20) has a drill 21 fastened in the direction from the top to the bottom of the jig 40 to drill a fastening hole 53 on the upper surface of the chain link 50, and the bush hole processing part 200 A processing device for an endless track chain link is proposed, which is characterized by being able to change the distance to the pinhole processing unit 100 by replacing the master block 215. Simultaneous processing of pinholes and bush holes in the chain link is performed. , there is an improvement in efficiency by drilling the fastening hole using a single processing device, but it is difficult to process to form a stepped surface around the pinhole and to perform boring into a circular shape around the fastening hole.

Republic of Korea Patent Publication No. 10-1388514 (announced on April 23, 2014)

Therefore, the present invention fixes the chain link with a jig, forms a step surface around the chain link pinhole in the fixed state, and performs boring processing on the fastening hole, thereby performing step surface processing and boring processing using a single processing device. It can be performed sequentially, and provides a processing device for trackless chain links that can simultaneously process LH type chain links and RH type chain links by installing two columns facing each other on the upper part of the base plate. There is a purpose.

In addition, the cutting tool mounted on the main axis has a step surface machining part for step surface machining and a boring machining part for boring processing in one tool, so separate tool exchange is not required, making it an endless track chain that can increase production speed. There is another purpose in providing processing equipment for links.

In addition, a jig for cutting processing is installed on the front of the main shaft, and a first center block and a second center block that are inserted into the pinhole and bush hole formed in the chain link are installed in the jig to create the machined pinhole and bush hole. By machining the step surface at the center and performing boring processing, we provide a processing device for endless track chain links that can minimize dimensional errors during fixing work between chain links and increase the dimensional accuracy of the produced chain links. There is a purpose.

The processing device for chain link for caterpillar according to the present invention includes a base plate installed on the ground, a column installed on the top of the base plate, an A Z-axis driving unit for transporting the main axis in the axial direction, a main axis installed on the column and equipped with a cutting tool, a driving motor for providing rotational power to the main axis, and a Y-axis driving unit for transporting the main axis in the Y-axis direction. It is characterized by being composed of .

The processing device for chain link for caterpillar according to the present invention is one processing device by fixing the chain link with a jig, forming a stepped surface around the chain link pinhole in the fixed state, and performing boring processing on the fastening hole. By this, step surface processing and boring processing can be performed sequentially, and by installing two columns on the upper part of the base plate to face each other, there is a remarkable effect of processing LH type chain link and RH type chain link at the same time. The cutting tool mounted on the main axis has the step surface machining part for step surface machining and the boring machining part for boring processing as a single tool, which has the effect of increasing production speed by eliminating the need for separate tool exchange. A jig for cutting processing is installed on the front of the jig, and a first center block and a second center block are installed in the jig to fit into the pinhole and bush hole formed in the chain link. By processing the car surface and performing boring processing, there is a significant effect of minimizing dimensional errors when fixing chain links to each other and increasing the dimensional accuracy of the produced chain links.

1 and 2 are perspective views of the overall configuration of the present invention.
Figure 3 is a front configuration diagram of the present invention
Figure 4 is a partial configuration diagram of the present invention
Figures 5 and 6 are configuration diagrams of a jig and chain link according to the present invention.
Figure 7 is a front configuration diagram of the jig and chain link according to the present invention

The present invention relates to a processing device for chain links for caterpillar tracks, and more specifically, to fix chain links with a jig, form a stepped surface around the fixed chain link pinhole, and perform boring processing on the fastening hole. By performing this, step surface processing and boring processing can be performed sequentially with one processing device, and by installing two columns on the upper part of the base plate to face each other, LH type chain link and RH type chain link can be processed simultaneously. It is a processing device for chain links for endless tracks.

The It refers to the forward and backward directions of the main axis that are perpendicular to the bottom surface of .

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

Figures 1 and 2 are perspective views of the overall configuration of the present invention, Figure 3 is a front configuration diagram of the present invention, and Figure 4 is a partial configuration diagram of the present invention. The processing device for chain links for caterpillars according to the present invention is shown on the ground. A base plate (1) installed on the base plate (1), a column (2) installed on the top of the base plate (1), an X-axis driver (10) for transporting the column (2) in the 2) a Z-axis driving unit 20 for transporting the machine in the Z-axis direction, a main shaft 3 installed on the column 2 and on which a cutting tool 4 is mounted, and rotational power is provided to the main shaft 3 It is characterized by being composed of a drive motor 5 for this purpose and a Y-axis drive unit 30 for transporting the main shaft 3 in the Y-axis direction.

First, the base plate (1) is installed on the floor as a processing equipment base for the chain link for crawler tracks according to the present invention, and a column (2) is installed on the top of the base plate (1), and the column (2) can be reciprocated in the X-axis direction by the A spindle (3) on which a cutting tool (4) can be mounted is installed.

A drive motor 5 is provided on one side of the main shaft 3, and the motor shaft of the drive motor 5 and the main shaft 3 are coupled by a coupling, so that the rotational force of the drive motor 5 is transmitted toward the main shaft 3. The main shaft 3 can be reciprocated in the Y-axis direction by the Y-axis driving unit 30.

The X-axis drive unit 10 is a drive unit for reciprocating the column 2 in the X-axis direction, and includes an , It is composed of a movable block that moves along the thread of the screw 13, and a movable plate 14 fixedly coupled to the movable block, and a column 2 is fixedly coupled to the movable plate 14, A sliding cover 12 is installed on the outside of the moving plate 14 to prevent chips or coolant generated by cutting work by the cutting tool 4 from penetrating into the X-axis drive unit 10, and the moving plate 14 ) is reciprocated in the X-axis direction along the guide rail (15).

The Z-axis drive unit 20 is a drive unit for reciprocating the column 2 in the Z-axis direction, and includes a Z-axis drive motor 21, a screw 23 rotated by the Z-axis drive motor 21, and , It is composed of a moving block that moves along the thread of the screw 23, and a moving plate 24 that is fixed to the moving block, and the moving plate 24 includes a moving plate 14 of the X-axis drive unit. When the moving plate 24 moves in the Z-axis direction, the column 2 including the In addition, a sliding cover is also installed on the outside of the moving plate 24 to prevent chips or cutting oil generated during cutting operations by a cutting tool from penetrating into the Z-axis driving unit.

The Y-axis drive unit 30 is a drive unit for reciprocating the main axis in the Y-axis direction, and includes a Y-axis drive motor 31, a screw rotated by the Y-axis drive motor 31, and a thread of the screw. It is composed of a moving block that moves along, and a saddle (35) that is fixed to the moving block, and the saddle (35) reciprocates in the Y-axis direction along the guide rail (32) fixed to the column (2). A sliding cover 34 is formed on one side of the saddle 35 to prevent chips or coolant generated by cutting work by a cutting tool from penetrating into the Y-axis drive unit 30, and the Y-axis drive unit 30 is operated by the guide cylinder 33. It can reduce the load on movement in the axial direction.

Therefore, the column 2 can be moved in the X-axis direction and the Z-axis direction, and the saddle 35 installed on the column 2 can be moved in the Y-axis direction, so that the main axis 3 is It can be moved along the Y and Z axes, that is, 3 axes.

In addition, two columns (2) are installed on both sides of the center of the base plate (1) on top of the base plate (1), and a main shaft (3) is installed in each of the two columns (2). LH type chain link and RH type chain link can be processed simultaneously.

That is, two columns 2 are installed on the upper part of the base plate 1 and are moved by independent X, Y, and Z axis driving units 10, 20, and 30, and each of the two columns 2 has a main axis 3) is installed, so two types of chain links (60), LH type and RH type, can be processed simultaneously.

To elaborate, the chain link 60 used in caterpillar is installed in the shape of a mirror on the left (LH) and right (RH), respectively, based on the direction of travel of the crawler vehicle, and the LH Since type and RH type chain links are used as a pair in tracked vehicles, two types of chain links (60) are processed simultaneously using the main shaft (3) installed on two columns (2), allowing two types of chain links (60) to be processed in one device. Types of chain links can be produced simultaneously, and the production quantity can also be adjusted to be the same.

In addition, a cutting tool 4 is fastened to the main shaft 3, and the cutting tool 4 includes a boring part 4b for cutting one side of the fastening hole 63 formed in the chain link 60, and a pin hole. A stepped surface processing part (4a) for forming a stepped surface on one side of (61) is formed simultaneously on one cutting tool (4), and the boring part (4b) and the stepped surface processing part (4a) are provided with an insert tip (7). ) can be concluded separately.

That is, the part to be processed in the processing device for chain link for caterpillar according to the present invention forms a stepped surface (61a) around the chain link pinhole (61), and performs boring processing on one side of the fastening hole (63). We want to perform two processes, and these step surface machining and boring processing are performed with a cutting tool (4) in which the boring part (4b) and the step surface machining part (4a) are formed together in one cutting tool, as shown in Figure 8. By doing so, the time required for tool change can be reduced and productivity can be improved.

To elaborate, the cutting tool 4 is formed with a boring processing part 4b, such as a drill, in order to perform boring processing in the through hole formed on one side of the chain link fastening hole 63, and the upper part of the boring processing part 4b is formed with a mill. Since the step surface processing part 4a is formed at the same time as the cutter, step surface processing is first performed around the pinhole 61 using the step surface processing part 4a, and then using the boring processing part 4b to one side of the fastening hole 63. Boring processing is performed.

Figures 5 and 6 are diagrams of the configuration of a jig and a chain link according to the present invention, and Figure 7 is a diagram of the front configuration of a jig and a chain link according to the present invention. The chain link 60 is located on the front of the main shaft 3. A jig 40 for fixation is installed, and the jig 40 includes a first center block 48 and a second center block respectively inserted into the pinhole 61 and bush hole 62 formed in the chain link 60. Two center blocks (49) are installed.

That is, a jig 40 is installed on the front of the main shaft 3 to fix the chain link 60 for processing, and the pinhole 61 formed in the chain link 60 is in the jig 40. ) and the first center block 48 and the second center block 49 are installed to fit into the bush hole 62, so that the fixing position of the chain link 60 is fixed to the cylindrical first center block 48 and the second center block 49. It is held by the 2 center block (49).

Looking at the configuration of the jig 40 in more detail, the jig 40 includes a fixing plate 41 fixed to the base plate 1, a cylinder housing 42 fixed to the fixing plate 41, and the A lifting cylinder 43 stored inside the cylinder housing 42, a lifting rod 44 that moves along the lifting cylinder 43 and operates by hydraulic or pneumatic pressure applied to the lifting cylinder 43, and the lifting cylinder 43. A rotating link 45 is fixedly coupled to one end of the rod 44 by a hinge 45a, and a fixed block 46 is fixedly coupled to the rotating link 45 to press the chain link 60 for cutting. ), a first center block 48 installed at the lower part of the fixing block 46 and inserted into the pinhole 61 of the chain link 60, and a first center block 48 installed on the upper part of the fixing plate 41 and moving up and down a lifting plate 47, a stopper 50 fixed to the lifting plate 47 to guide the seating position of the chain link 60, and a chain link installed at a certain distance from the first center block 48. A second center block 49 inserted into the bush hole 62 of (60), a movable cylinder housing 51 installed on one side of the second center block 49 and fixedly coupled to the fixing plate 21, and , It is composed of a movable cylinder 52 stored inside the movable cylinder housing 51, and a movable fixed block 53 that is moved by hydraulic or air pressure applied to the movable cylinder 52.

First, the fixing plate 41 is a basic plate of the jig 40 and is fixedly coupled to the base plate 1. A cylinder housing 42 is fixedly installed on the top of the fixing plate 41, and the cylinder housing 42 Inside, an elevating cylinder (43) is fixedly installed.

The lifting rod 44, which is the rod of the lifting cylinder 43, is moved up and down by hydraulic or air pressure applied to the lifting cylinder 43, and one end of the lifting rod 44 is rotated by a hinge 45a. The link 45 is fixedly coupled, and a fixed block 46 is fixed to one side of the rotating link 45, and the fixed block 46 is connected to the chain link 60 by the lifting operation of the lifting rod 44. ) is pressed and fixed.

A first center block 48 inserted into the pinhole 61 of the chain link 60 is installed at the bottom of the fixing block 46, and a lifting plate 47 is installed on the top of the fixing plate 41. The lifting plate 47 is formed with a through hole penetrated by the first center block 48, so that when the lifting plate 47 is in the raised position, the first center block 48 is positioned as a lifting plate ( 47) It is located below the upper section, and when the lifting plate 47 is in the lowered position, the first center block 48 is located above the upper section of the lifting plate 47.

In addition, a stopper 50 is installed on one side of the lifting plate 47 to guide the seating position of the chain link 60, and the second center block 49 is located at a certain distance from the first center block 48. is installed, and the second center block 49 is inserted into the bush hole 62 of the chain link 60.

A movable cylinder housing 51 is installed on one side of the second center block 49, and a movable cylinder 52 is installed inside the movable cylinder housing 51, and on one side of the movable cylinder 52. A movable fixing block 53 is installed, so that the movable fixing block 53 comes out of or goes into the movable cylinder housing 51 by hydraulic or pneumatic pressure applied to the movable cylinder 52, forming a chain link 60. It comes in close contact with the upper surface of and secures the chain link (60).

Therefore, the chain link 60 is placed on the upper part of the lifting plate 47 so that it is in close contact with the stopper 50 while the lifting plate 47 is raised, and then when the lifting plate 47 is lowered, the lifting plate 47 is raised. As the chain link 60 is lowered, the first center block 48 enters the pinhole 61 of the chain link 60, and the second center block 49 enters the bush hole 62. Afterwards, the movable fixing block 53 moves away from the movable cylinder 52 and presses and fixes it around the bush hole 62 of the chain link 40.

By this fixing method, the chain link 60 is fixed in a certain position by the first center block 48 and the second center block 49, thereby performing the step surface forming operation by the cutting tool 4 and the fastening hole ( 63), the cutting position of the boring work performed on one side can be kept constant, thereby improving the dimensional accuracy of the produced product.

In the end, the processing device for chain link for caterpillar according to the present invention fixes the chain link with a jig, forms a stepped surface around the fixed chain link pinhole, and performs boring processing on the fastening hole to form a single chain link. Step surface processing and boring processing can be performed sequentially by the processing device, and by installing two columns on the upper part of the base plate to face each other, there is a remarkable effect of processing LH type chain links and RH type chain links at the same time. The cutting tool mounted on the main axis includes a step surface machining section for step surface machining and a boring processing section for boring processing, so separate tool exchange is not required, which has the effect of increasing production speed. , A jig for cutting processing is installed on the front of the main shaft, and the jig is equipped with a first center block and a second center block that are inserted into the pinhole and bush hole formed in the chain link, so that the machined pinhole and bush hole are centered. By machining the step surface and performing boring processing, there is a significant effect of minimizing dimensional errors when fixing chain links to each other and increasing the dimensional accuracy of the produced chain links.

1. Base plate 2. Column
3. Spindle 4. Cutting tool
4a. Step surface processing section 4b. Boring Department
5. Drive motor 7. Insert tip (cutting tip)
10; X-axis driving unit
11. X-axis drive motor 12. Sliding cover
13. Screw 14. Moving plate
15. Guide rail
20; Z-axis driving unit
21. Z-axis drive motor 22. Sliding cover
23. Guide rail
30; Y-axis driving unit
31. Y-axis drive motor 32. Guide rail
33. Guide cylinder 34. Sliding cover
35. Birds
40; now
41. Fixing plate 42. Cylinder housing
43. Elevating cylinder 44. Elevating rod
45. Rotating link 46. Fixed block
47. Elevating plate 48. 1st center block
49. 2nd center block 50. Stopper
51. Moving cylinder housing 52. Moving cylinder
53. Mobile fixed block 54. Fixed link
55. Seating plate
60; chain link
61. Pinhole 61a. step surface
62. Bush hole 63. Fastening hole

Claims (6)

In the processing device for chain links for endless tracks,
A base plate (1) installed on the ground, a column (2) installed on top of the base plate (1), an X-axis driver (10) for transporting the column (2) in the X-axis direction, and the column (2) a Z-axis driving unit 20 for transporting the machine in the Z-axis direction, a main shaft 3 installed on the column 2 and on which a cutting tool 4 is mounted, and rotational power applied to the main shaft 3. It consists of a drive motor 5 for providing power and a Y-axis drive unit 30 for transporting the main shaft 3 in the Y-axis direction,
A jig 40 for fixing the chain link 60 is installed on the front of the main shaft 3, and the jig 40 has a pin hole 61 and a bush hole 62 formed in the chain link 60. ) are installed, and a first center block (48) and a second center block (49) are installed, respectively,
The jig 40 includes a fixing plate 41 fixed to the base plate 1, a cylinder housing 42 fixed to the fixing plate 41, and an elevating cylinder stored inside the cylinder housing 42 ( 43), a lifting rod 44 that moves along the lifting cylinder 43 and is operated by hydraulic or pneumatic pressure applied to the lifting cylinder 43, and a hinge 45a at one end of the lifting rod 44. A rotating link 45 that is fixedly coupled by a fixed block 46 that is fixedly coupled to the rotating link 45 to press the chain link 60 for cutting, and a lower part of the fixed block 46. A first center block 48 installed and inserted into the pinhole 61 of the chain link 60, a lifting plate 47 installed on the upper part of the fixing plate 41 and moved up and down, and the lifting plate ( A stopper 50 is fixed to 47) and guides the seating position of the chain link 60, and is installed at a certain distance from the first center block 48 and inserted into the bush hole 62 of the chain link 60. A second center block 49, a movable cylinder housing 51 installed on one side of the second center block 49 and fixedly coupled to the fixing plate 21, and stored inside the movable cylinder housing 51. A processing device for a chain link for an endless track, characterized in that it consists of a movable cylinder (52) and a movable fixed block (53) moved by hydraulic or pneumatic pressure applied to the movable cylinder (52).
According to paragraph 1,
Two columns (2) are installed on both sides of the center of the base plate (1) on top of the base plate (1), and a main shaft (3) is installed in each of the two columns (2), making them LH type. A chain link processing device for trackless tracks that is capable of processing chain links and RH type chain links at the same time.
According to paragraph 1,
A cutting tool (4) is fastened to the main shaft (3), and the cutting tool (4) includes a boring part (4b) for cutting one side of the fastening hole (63) formed in the chain link (60), and a pinhole (61). ) A stepped surface machining part 4a for forming a step surface on one side is formed simultaneously on one cutting tool 4, and an insert tip 7 is attached to the boring part 4b and the stepped surface machining part 4a. A processing device for chain links for endless tracks that can be fastened individually.
delete delete According to paragraph 1,
The fixed block 46 pressurizes the chain link 60 through a rotating operation, and the movable fixed block 53 fixes the chain link 60 through a sliding operation. Device.