A vehicle track shoe processing fixture

Abstract

The utility model relates to the technical field of tracked vehicles, and specifically to a vehicle track plate processing fixture. The track plate is put on a square box, and by rotating the compression nut, a first pressure plate and a second pressure plate are pressed on the track plate. During processing, the square box is installed on a processing platform, and the track plate is rotated by rotating the square box, and there is no need to flip, disassemble and install the track plate, thereby improving production efficiency and processing accuracy. The first plate can rotate on a long screw, so that the angle of the first pressure plate can be adjusted and can be pressed on the teeth of the track plate. The second pressure plate can slide along the radial direction of the long screw, so that the second pressure plate is pressed on the root part of the track plate, thereby improving the stability of the track plate being pressed and fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of tracked vehicles. Background Art

[0002] Track shoe is one of the key parts of engineering machinery vehicles. As an important matching part, the long pin hole of the track shoe has high dimensional accuracy requirements. Its processing quality has a great impact on the running stability of the whole machine and the reliability of the equipment.

[0003] At present, the conventional processing method is to use drilling fixture processing. This processing method requires the workpiece to be disassembled, rotated 180° and clamped again for processing after one side of the workpiece is processed. The labor intensity of workers is high, the processing efficiency is low, and the dimensional accuracy cannot be guaranteed. Workers are often required to manually grind to meet the tolerance requirements. Utility Model Content

[0004] In order to solve the problem of low efficiency and poor precision caused by the need to disassemble, rotate and then clamp the track shoe during machining in the prior art, the utility model provides a vehicle track shoe machining fixture.

[0005] The technical solution adopted by the utility model to achieve the above-mentioned purpose is:

[0006] A vehicle track shoe processing fixture, a first pressing plate 4 or a second pressing plate 5 is relatively installed on both sides of a square box 2 through long screws 3 and tightening nuts 6, the first pressing plate 4 is provided with an axial hole 24, the long screw 3 is located in the axial hole 24, and the second pressing plate 5 is provided with a strip hole 7, the long screw 3 is located in the strip hole 7.

[0007] The long screws 3 are distributed in two rows on the square box 2 . Positioning blocks 8 and positioning seats 9 are installed between each row of long screws 3 on the square box 2 . Positioning rods 10 are provided on the positioning seats 9 .

[0008] Auxiliary support mechanisms are installed on both sides of the square box 2 between each row of long screws 3, and the auxiliary support mechanism includes an auxiliary support 11 and a wedge-shaped slide bar 19. A slideway 20 is provided in the auxiliary support 11, and the wedge-shaped slide bar 19 is located in the slideway 20. The end of the wedge-shaped slide bar 19 is connected to a push-pull member, and the push-pull member is located in the slideway 20. A guide hole 21 is provided in the auxiliary support 11 at the upper part of the wedge-shaped slide bar 19, and a piston 16 is provided in the guide hole 21. The bottom of the piston 16 is provided with an arc surface matching the wedge-shaped slide bar 19, and an auxiliary support top 15 is installed on the top of the piston 16. A threaded hole 22 is provided in the auxiliary support 11 on one side of the piston 16, and a tightening screw 23 is provided in the threaded hole 22. A slot 27 matching the tightening screw 23 is provided on the side wall of the piston 16.

[0009] The push-pull member includes a guide sleeve 12 and a push-pull screw 13 . The guide sleeve 12 is installed in the slideway 20 of the auxiliary support 11 . The push-pull screw 13 is installed in the guide sleeve 12 . The end of the push screw 13 is connected to the wedge-shaped slide bar 19 .

[0010] A limiting column 14 is installed on the square box 2 below the first pressing plate 4 and the second pressing plate 5 . A limiting groove 25 having a shape matching that of the limiting column 14 is provided at the bottom of the first pressing plate 4 . A strip groove 26 having a shape matching that of the limiting column 14 is provided at the bottom of the second pressing plate 5 .

[0011] The auxiliary support 11 is located at the top of the guide hole 21 and a sealing ring 17 is installed thereon, and the piston 16 is located inside the sealing ring 17 .

[0012] An end cover 18 is installed on the auxiliary support 11 at the end of the slideway 20 .

[0013] The guide sleeve 12 and the wedge-shaped slide rod 19 are provided with tapered surfaces on opposite sides thereof, and a clamping ring 28 is installed inside the slideway 20 and outside the two tapered surfaces.

[0014] A base plate 1 is installed at the bottom of the square box 2.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The track plate is put on the square box, and the first pressure plate and the second pressure plate are pressed on the track plate by rotating the compression nut. During processing, the square box is installed on the processing platform, and the track plate is rotated by rotating the square box. There is no need to flip, disassemble and install the track plate, which improves production efficiency and processing accuracy. The first plate can rotate on the long screw, so that the angle of the first pressure plate can be adjusted and can be pressed on the teeth of the track plate. The second pressure plate can slide along the radial direction of the long screw, so that the second pressure plate is pressed on the root part of the track plate, which improves the stability of the track plate being pressed and fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a front view of a vehicle track shoe processing fixture.

[0018] Figure 2 The utility model is a side view of a vehicle track shoe processing fixture.

[0019] Figure 3 The utility model is a top view of a vehicle track shoe processing fixture.

[0020] Figure 4 The utility model is a three-dimensional structural diagram of an auxiliary support mechanism of a vehicle track plate processing fixture.

[0021] Figure 5The utility model is a cross-sectional view of an auxiliary support mechanism of a vehicle track shoe processing fixture.

[0022] Figure 6 The utility model is a three-dimensional structural diagram of a first pressing plate of a vehicle track shoe processing fixture.

[0023] Figure 7 The utility model is a three-dimensional structural diagram of a second pressing plate of a vehicle track shoe processing fixture.

[0024] In the figure: 1. bottom plate; 2. square box; 3. long screw; 4. first pressure plate; 5. second pressure plate; 6. clamping nut; 7. strip hole; 8. positioning block; 9. positioning seat; 10. positioning rod; 11. auxiliary support; 12. guide sleeve; 13. push-pull screw; 14. limiting column; 15. auxiliary support top; 16. piston; 17. sealing ring; 18. end cover; 19. wedge-shaped slide rod; 20. slideway; 21. guide hole; 22. threaded hole; 23. tightening screw; 24. shaft hole; 25. limiting groove; 26. strip groove; 27. clamping groove; 28. clamping ring. DETAILED DESCRIPTION

[0025] The utility model provides a vehicle track plate processing fixture, such as Figure 1-3 As shown, the bottom plate 1 is installed at the bottom of the square box 2, and the first pressing plate 4 or the second pressing plate 5 is relatively installed on both sides of the square box 2 through long screws 3 and compression nuts 6. The first pressing plate 4 is provided with an axial hole 24, and the long screw 3 is located in the axial hole 24. The second pressing plate 5 is provided with a strip hole 7, and the long screw 3 is located in the strip hole 7. The long screws 3 are distributed in two rows on the square box 2, and positioning blocks 8 and positioning seats 9 are installed between each row of long screws 3 on the square box 2, and positioning rods 10 are provided on the positioning seats 9.

[0026] A limiting column 14 is installed below the first pressing plate 4 and the second pressing plate 5 on the square box 2. Figure 6-7 As shown, a limiting groove 25 whose shape is adapted to the limiting column 14 is provided at the bottom of the first pressure plate 4, and a strip groove whose shape is adapted to the limiting column 14 is provided at the bottom of the second pressure plate 5. When the first pressure plate 4 and the second pressure plate 5 are pressed on the track plate, the clamping nut 6 is tightened to fix the first pressure plate 4 and the second pressure plate 5. At the same time, the limiting of the first pressure plate 4 and the second pressure plate 5 is achieved through the cooperation of the limiting column 14, the limiting groove 25 and the strip groove 26.

[0027] like Figure 4-5As shown, auxiliary support mechanisms are installed between each row of long screws 3 on both sides of the square box 2, and the auxiliary support mechanisms include an auxiliary support 11 and a wedge-shaped slide bar 19. A slideway 20 is provided in the auxiliary support 11, and the wedge-shaped slide bar 19 is located in the slideway 20. The end of the wedge-shaped slide bar 19 is connected to a push-pull member, and the push-pull member is located in the slideway 20. A guide hole 21 is provided in the auxiliary support 11 at the upper part of the wedge-shaped slide bar 19, and a piston 16 is provided in the guide hole 21. The bottom of the piston 16 is provided with an arc surface that matches the wedge-shaped slide bar 19, and the contact area between the two is reduced by the arc surface, thereby reducing friction. An auxiliary support top 15 is installed on the top of the piston 16, and a threaded hole 22 is provided in the auxiliary support 11 on one side of the piston 16, and a tightening screw 23 is provided in the threaded hole 22, and a groove 27 that matches the tightening screw 23 is provided on the side wall of the piston 16. The push-pull member includes a guide sleeve 12 and a push-pull screw 13. The guide sleeve 12 is installed in the slideway 20 of the auxiliary support 11. The push-pull screw 13 is installed in the guide sleeve 12. The end of the push screw 13 is connected to the wedge slide 19. A sealing ring 17 is installed at the top of the guide hole 21 of the auxiliary support 11, and the piston 16 is located in the sealing ring 17. An end cover 18 is installed at the end of the slideway 20 on the auxiliary support 11 to prevent the wedge slide 19 from moving excessively. Conical surfaces are provided on the opposite sides of the guide sleeve 12 and the wedge slide 19. A clamping ring 28 is installed in the slideway 20 and outside the two conical surfaces. The clamping ring 28 can prevent the wedge slide and the guide sleeve from radial runout, thereby improving stability. The auxiliary support mechanism and the positioning block 8 are alternately arranged corresponding to the first pressure plate 4 or the second pressure plate 5 respectively.

[0028] Working principle: Install the bottom plate 1 on the processing platform, put the track plate in the middle of the square box 2, so that the track plate contacts the positioning block 8, and the positioning rod 10 passes through the through hole on the track plate to realize the positioning of the track plate, then rotate the first pressing plate 4, so that the first pressing plate 4 cooperates with the corresponding auxiliary support mechanism and the positioning block 8 to clamp the teeth of the track plate, tighten the clamping nut 6, so that the first pressing plate 4 is fixed, move the push-pull screw 13, and then move the wedge-shaped slider 19, so that the piston 16 presses against the track plate, and then tighten the top nut 6. Screw 23, so that the end of the tightening screw 23 is located in the groove 27 on the side wall of the piston 16 to prevent the piston 16 from moving; move the second pressure plate 5, and the second pressure plate 5 moves on the long screw 3 through the strip hole 7, so that the second pressure plate 5 cooperates with the corresponding auxiliary support mechanism and the positioning block 8 to clamp the root part of the track shoe, and tighten the clamping nut 6 to fix the second pressure plate 5, so as to realize all-round clamping of the track shoe, and the base plate 1 is rotated through the processing platform, so that the track shoe can be rotated without manual intervention, thereby improving the processing efficiency.

[0029] The present invention is described by way of embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the guidance of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the protection scope of the present invention.

Claims

1. A vehicle track shoe processing fixture, characterized in that: The first pressing plate (4) or the second pressing plate (5) is relatively mounted on both sides of the square box (2) by means of long screws (3) and clamping nuts (6); the first pressing plate (4) is provided with an axial hole (24), the long screw (3) is located in the axial hole (24); the second pressing plate (5) is provided with a strip hole (7), the long screw (3) is located in the strip hole (7).

2. A vehicle track shoe processing fixture according to claim 1, characterized in that: The long screws (3) are distributed in two rows on the square box (2), and positioning blocks (8) and positioning seats (9) are installed between each row of long screws (3) on the square box (2), and a positioning rod (10) is provided on the positioning seat (9).

3. The vehicle track shoe processing fixture according to claim 1, characterized in that: Auxiliary support mechanisms are installed between each row of long screws (3) on both sides of the square box (2), and the auxiliary support mechanisms include an auxiliary support seat (11) and a wedge-shaped slide bar (19). A slideway (20) is provided in the auxiliary support seat (11), and the wedge-shaped slide bar (19) is located in the slideway (20). The end of the wedge-shaped slide bar (19) is connected to a push-pull member, and the push-pull member is located in the slideway (20). A guide hole (21) is provided in the upper part of the wedge-shaped slide bar (19) in the auxiliary support seat (11). ), a piston (16) is arranged in the guide hole (21), an arc surface matching with the wedge-shaped slide rod (19) is arranged at the bottom of the piston (16), an auxiliary support top (15) is installed at the top of the piston (16), a threaded hole (22) is arranged on one side of the piston (16) in the auxiliary support (11), a tightening screw (23) is arranged in the threaded hole (22), and a slot (27) matching with the tightening screw (23) is arranged on the side wall of the piston (16).

4. A vehicle track shoe processing fixture according to claim 3, characterized in that: The push-pull member comprises a guide sleeve (12) and a push-pull screw rod (13); the guide sleeve (12) is installed in a slideway (20) of an auxiliary support (11); the push-pull screw rod (13) is installed in the guide sleeve (12); and the end of the push screw rod (13) is connected to a wedge-shaped slide rod (19).

5. The vehicle track shoe processing fixture according to claim 1, characterized in that: A limiting column (14) is installed on the square box (2) below the first pressing plate (4) and the second pressing plate (5); a limiting groove (25) having a shape matching that of the limiting column (14) is provided at the bottom of the first pressing plate (4); and a strip groove (26) matching that of the limiting column (14) is provided at the bottom of the second pressing plate (5).

6. The vehicle track shoe processing fixture according to claim 3, characterized in that: The auxiliary support (11) is located at the top of the guide hole (21) and a sealing ring (17) is installed thereon, and the piston (16) is located inside the sealing ring (17).

7. The vehicle track shoe processing fixture according to claim 3, characterized in that: An end cover (18) is installed on the auxiliary support (11) at the end of the slideway (20).

8. The vehicle track shoe processing fixture according to claim 4, characterized in that: The guide sleeve (12) and the wedge-shaped slide rod (19) are each provided with a conical surface on one side opposite to the other, and a clamping ring (28) is installed inside the slideway (20) and outside the two conical surfaces.

9. The vehicle track shoe processing fixture according to claim 1, characterized in that: A bottom plate (1) is installed at the bottom of the square box (2).

Images