Milling clamp for two side surfaces of track link section

Abstract

The utility model relates to the field of caterpillar track section machining, and discloses a caterpillar track section two side face milling clamp which comprises a base, the top of the base is fixedly connected with a stand column, the top of the stand column is fixedly connected with a top plate, the surface of the top plate is fixedly connected with an air cylinder, and the output end of the air cylinder is fixedly connected with a lower pressing plate. A milling cutter is fixedly connected to the bottom of the lower pressing plate, a clamping structure is arranged at the top of the base and comprises a fixing seat, a supporting block is arranged on the side wall of the fixing seat, a through groove is formed in the surface of the fixing seat, and a moving block is slidably connected to the inner surface of the through groove; a fixing frame is fixedly connected to the side wall of the supporting block, a screw hole is formed in the top of the fixing seat, and a bolt is in threaded connection with the inner wall of the screw hole. According to the utility model, the clamping structure is arranged, so that cracks and deformation caused by non-uniform internal stress of materials are reduced, and the machining stability of the threaded holes in the edge of the track link section is improved.

Description

Technical Field

[0001] The utility model relates to the field of chain track segment processing, in particular to a fixture for milling two side surfaces of a chain track segment. Background Art

[0002] A milling fixture is a device used to fix and position the workpiece during the milling process. Its main function is to ensure that the workpiece maintains the correct position and posture during the milling process to facilitate precise processing. The design and use of milling fixtures are crucial to improving processing efficiency, ensuring processing accuracy and reducing errors during workpiece processing. Milling of the two sides of the track segment is a mechanical processing method that is mainly used to process the two sides of the track segment. This processing method usually involves the use of milling machinery.

[0003] After searching, Chinese patent announcement number: CN221363871U discloses a milling fixture for the two sides of the chain track segment. The chain track segment is roughly positioned by the shaft hole pad and the sleeve hole pad on the mounting seat. The chain track segment only needs to be manually placed on the two support pads on the fixed seat. Under the push of the cylinder, the sleeve hole pressure head and the shaft hole pressure head automatically move down to position and clamp the workpiece, reducing manual labor and improving the efficiency of picking and placing the workpiece.

[0004] In the above technical solution, the shaft hole pad and the sleeve hole pad on the mounting seat are used in conjunction with the pressure head to position the track link. However, the track link lacks a preheating function during milling, which will lead to increased internal stress and increase the risk of deformation of the track link. At the same time, since the application requirements of the track link are different and the size will be different, it is impossible to position the track links of different volumes, which reduces the stability of the track link milling. Therefore, a milling fixture for the two sides of the track link is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a milling fixture for the two sides of the chain track segment, which aims to improve the problem that the milling fixture for the two sides of the chain track segment in the existing technology lacks the ability to adapt to the fixation of chain tracks of different sizes and lacks the preheating function, resulting in reduced stability in the milling processing of the chain track segment.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a milling fixture for the two sides of a chain track segment, comprising a base, the top of the base is fixedly connected to a column, the top of the column is fixedly connected to a top plate, the surface of the top plate is fixedly connected to a cylinder, the output end of the cylinder is fixedly connected to a lower pressure plate, the bottom of the lower pressure plate is fixedly connected to a milling cutter, the top of the base is provided with a clamping structure, the clamping structure includes a fixed seat, the side wall of the fixed seat is provided with a support block, the surface of the fixed seat is provided with a through groove, the inner surface of the through groove is slidably connected to a moving block, the side wall of the support block is fixedly connected to a fixing frame, the top of the fixed seat is provided with a screw hole, the inner wall of the screw hole is threadedly connected to a bolt, the surface of the support block is provided with a positioning component, and the surface of the support block is provided with a preheating component.

[0007] As a further description of the above technical solution:

[0008] A movable groove is provided on the top of the base, the inner wall of the movable groove is slidably connected to a guide block, the outer wall of the guide block is fixedly connected to a spring, and the top of the guide block is fixedly connected to a clamping plate.

[0009] As a further description of the above technical solution:

[0010] The bottom of the fixing seat is fixedly connected to the upper surface of the base, the inner wall of the fixing frame is threadedly connected to the outer wall of the bolt, and the outer wall of the moving block is fixedly connected to the outer wall of the supporting block.

[0011] As a further description of the above technical solution:

[0012] The positioning assembly includes a groove, the inner wall of the groove is rotatably connected to a bidirectional screw rod, the outer wall of the bidirectional screw rod is threadedly connected to a threaded block, and the outer wall of the threaded block is fixedly connected to a positioning frame.

[0013] As a further description of the above technical solution:

[0014] The preheating assembly includes a mounting groove, an inner wall of the mounting groove is fixedly connected to an electric heating pipe, and a side wall of the positioning frame is fixedly connected to a heat conducting plate.

[0015] As a further description of the above technical solution:

[0016] The groove is arranged on a side of the support block away from the fixing seat, and the inner wall of the groove is fitted with the outer wall of the threaded block.

[0017] As a further description of the above technical solution:

[0018] The mounting groove is formed on the inner wall of the positioning frame, and the heat conducting plate is located on the outer surface of the positioning frame.

[0019] As a further description of the above technical solution:

[0020] The upper end of the clamping plate close to the supporting block is arranged in an inclined manner.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the distance between the two groups of support blocks can be adjusted according to the spacing between the two groups of connecting holes on the chain track segment by providing bolts, screw holes, movable blocks and fixing frames. The chain track segment is positioned and clamped by the positioning assembly to adapt to connecting holes of different diameters. The preheating assembly preheats the chain track segment before milling, thereby reducing cracks and deformation caused by uneven internal stress of the material and improving the stability of threaded hole processing at the edge of the chain track segment.

[0023] 2. In the utility model, a movable groove, a guide block, a spring and a clamping plate are provided so that the clamping plate is fitted to the track link to provide auxiliary positioning for it, so that the track link that is out of position after milling is completed can obtain a part of the support force, which is convenient for observing the track link. At the same time, after the processing is completed, the track link will not be deformed or damaged due to loss of support. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a top view schematic diagram of the main structure of a milling fixture for both sides of a track link proposed by the present invention;

[0025] Figure 2 This utility model proposes a milling fixture for the two sides of the chain track segment. Figure 1 A magnified schematic diagram of area A in the middle;

[0026] Figure 3 This is a schematic diagram of the front side of the partial structure of a fixture for milling both sides of a track link proposed by the present invention;

[0027] Figure 4 This utility model proposes a milling fixture for the two sides of the chain track segment. Figure 3 A magnified schematic diagram of area B in the middle;

[0028] Figure 5 The utility model is a schematic side view of the local structure of a milling fixture for the two side surfaces of a track link.

[0029] Legend:

[0030] 1. Base; 2. Column; 3. Top plate; 4. Cylinder; 5. Lower pressure plate; 6. Milling cutter; 7. Fixed seat; 8. Support block; 9. Through slot; 10. Moving block; 11. Fixed frame; 12. Screw hole; 13. Bolt; 14. Groove; 15. Bidirectional screw rod; 16. Threaded block; 17. Positioning frame; 18. Mounting slot; 19. Electric heating tube; 20. Heat conduction plate; 21. Moving slot; 22. Guide block; 23. Spring; 24. Clamp. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1-Figure 3 The utility model provides an embodiment: a milling fixture for the two sides of a chain track segment, comprising a base 1, a column 2 fixedly connected to the top of the base 1, a top plate 3 fixedly connected to the top of the column 2, a cylinder 4 fixedly connected to the surface of the top plate 3, a lower pressure plate 5 fixedly connected to the output end of the cylinder 4, a milling cutter 6 fixedly connected to the bottom of the lower pressure plate 5, a clamping structure is provided on the top of the base 1, the clamping structure includes a fixed seat 7, the fixed seat 7 is provided with two groups, and the two groups of fixed seats 7 are symmetrically arranged with the central axis of the base 1 as the symmetry axis, the side wall of the fixed seat 7 is provided with a support block 8, each group The fixed seat 7 is provided with two groups of support blocks 8, and one group of support blocks 8 is fixedly connected to the side wall of the fixed seat 7, and the other group is fixedly connected to the movable block 10. A through groove 9 is provided on the surface of the fixed seat 7, and the inner surface of the through groove 9 is slidably connected with the movable block 10. The side wall of the support block 8 is fixedly connected with a fixing frame 11. A screw hole 12 is provided on the top of the fixed seat 7. There are several groups of screw holes 12, and several groups of screw holes 12 are equidistantly distributed on the upper surface of the fixed seat 7. The inner wall of the screw hole 12 is threadedly connected with a bolt 13. The surface of the support block 8 is provided with a positioning component, and the surface of the support block 8 is provided with a preheating component.

[0033] Reference Figure 3-Figure 5The bottom of the fixed seat 7 is fixedly connected to the upper surface of the base 1, the inner wall of the fixing frame 11 is threadedly connected to the outer wall of the bolt 13, the outer wall of the moving block 10 is fixedly connected to the outer wall of the support block 8, and the positioning component includes a groove 14. The inner wall of the groove 14 fits with the outer wall of the threaded block 16. The groove 14 is opened on the side of the support block 8 away from the fixed seat 7. The inner wall of the groove 14 is rotatably connected with a bidirectional screw rod 15. One end of the bidirectional screw rod 15 passes through the outside of the support block 8. The end of the bidirectional screw rod 15 located on the outside of the support block 8 is provided with a rotating knob, which can drive the bidirectional screw rod 15 to move in two directions. The screw rod 15 rotates, and the outer wall of the bidirectional screw rod 15 is threadedly connected to a threaded block 16, and the outer wall of the threaded block 16 is fixedly connected to a positioning frame 17. Two groups of positioning frames 17 are provided on each group of support blocks 8, and the two groups of positioning frames 17 are arranged in a semicircular shape. The preheating component includes a mounting groove 18, and the mounting groove 18 is opened on the inner wall of the positioning frame 17. The inner wall of the mounting groove 18 is fixedly connected to an electric heating pipe 19, and the side wall of the positioning frame 17 is fixedly connected to a heat conducting plate 20. The heat conducting plate 20 is made of metal and has a heat conducting function. The heat conducting plate 20 is located on the outer surface of the positioning frame 17.

[0034] Reference Figure 1-Figure 2 A movable groove 21 is provided at the top of the base 1, and a guide block 22 is slidably connected to the inner wall of the movable groove 21. A spring 23 is fixedly connected to the outer wall of the guide block 22. A splint 24 is fixedly connected to the top of the guide block 22. The upper end of the splint 24 is inclined on the side close to the support block 8. The inclination angle of the splint 24 can facilitate the rapid transition of the chain track section to the support block 8.

[0035] Working principle: put the track link vertically into the splint 24, and the spring 23 will be stretched and deformed after the splint 24 is squeezed by the track link to ensure the fit between the splint 24 and the track link. Insert the two sets of connecting holes on the surface of the track link into the positioning frame 17 in pairs, and manually rotate the rotating knob forward or reverse in turn. The two-way screw rod 15 rotates to drive the two sets of threaded blocks 16 to move toward or away from each other until the two sets of positioning frames 17 fit the inner walls of the track link connecting holes. After the connecting holes on both sides of the track link are fixed to the two sets of support blocks 8, the fit of the splint 24 is coordinated to position the horizontal and vertical sides of the track link. Then turn on the electric heating tube 19. After the electric heating tube 19 generates heat source, the heat conducting plate 2 0 transfers the heat source to the track link to preheat it, and the cylinder 4 drives the lower pressure plate 5 to descend until the milling cutter 6 contacts the edge of the track link to process the threaded hole. After preheating, the milling cutter 6 can reduce the internal stress of the material during the processing, thereby reducing the deformation during the processing. When the length of the track link is long, manually reverse the bolt 13 to disengage it from the screw hole 12, and manually move the fixing frame 11 back and forth. The fixing frame 11 pulls a group of support blocks 8 to allow the moving block 10 to move inside the through slot 9 until it is adjusted to the appropriate position. Then, the bolt 13 is connected to the corresponding screw hole 12 to fix the support block 8 in the adjusted position to improve the stability of the track link during milling.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fixture for milling both sides of a track link, comprising a base (1), a column (2) fixedly connected to the top of the base (1), a top plate (3) fixedly connected to the top of the column (2), a cylinder (4) fixedly connected to the surface of the top plate (3), a lower pressure plate (5) fixedly connected to the output end of the cylinder (4), a milling cutter (6) fixedly connected to the bottom of the lower pressure plate (5), characterized in that: The top of the base (1) is provided with a clamping structure, and the clamping structure includes a fixed seat (7), a side wall of the fixed seat (7) is provided with a support block (8), a surface of the fixed seat (7) is provided with a through groove (9), the inner surface of the through groove (9) is slidably connected to a moving block (10), the side wall of the support block (8) is fixedly connected to a fixing frame (11), a top of the fixed seat (7) is provided with a screw hole (12), the inner wall of the screw hole (12) is threadedly connected to a bolt (13), a surface of the support block (8) is provided with a positioning component, and a surface of the support block (8) is provided with a preheating component.

2. The fixture for milling both sides of a track link according to claim 1, characterized in that: A movable groove (21) is provided on the top of the base (1); a guide block (22) is slidably connected to the inner wall of the movable groove (21); a spring (23) is fixedly connected to the outer wall of the guide block (22); and a clamping plate (24) is fixedly connected to the top of the guide block (22).

3. The fixture for milling both sides of a track link according to claim 1, characterized in that: The bottom of the fixing seat (7) is fixedly connected to the upper surface of the base (1), the inner wall of the fixing frame (11) is threadedly connected to the outer wall of the bolt (13), and the outer wall of the moving block (10) is fixedly connected to the outer wall of the supporting block (8).

4. The fixture for milling both sides of a track link according to claim 1, characterized in that: The positioning assembly includes a groove (14), the inner wall of the groove (14) is rotatably connected to a bidirectional screw rod (15), the outer wall of the bidirectional screw rod (15) is threadedly connected to a threaded block (16), and the outer wall of the threaded block (16) is fixedly connected to a positioning frame (17).

5. The fixture for milling both sides of a track link according to claim 4, characterized in that: The preheating assembly includes a mounting groove (18), an electric heating pipe (19) is fixedly connected to the inner wall of the mounting groove (18), and a heat conducting plate (20) is fixedly connected to the side wall of the positioning frame (17).

6. The fixture for milling both sides of a track link according to claim 4, characterized in that: The groove (14) is formed on a side of the support block (8) away from the fixing seat (7), and the inner wall of the groove (14) is in contact with the outer wall of the threaded block (16).

7. The fixture for milling both sides of a track link according to claim 5, characterized in that: The mounting groove (18) is formed on the inner wall of the positioning frame (17), and the heat conducting plate (20) is located on the outer surface of the positioning frame (17).

8. The fixture for milling both sides of a track link according to claim 2, characterized in that: The upper end of the clamping plate (24) close to the supporting block (8) is arranged in an inclined manner.

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