A clamping tool for excavator arm

Abstract

The utility model relates to clamping frock technical field, and disclose a kind of clamping frock of excavator bucket rod, including mounting plate, both ends of mounting plate are fixedly connected with extension plate, the top between two extension plates is fixedly connected with adjusting seat, the one end of adjusting seat is fixedly connected with first motor, the output of first motor is fixedly connected with bidirectional screw rod, another end of bidirectional screw rod extends to the inside of adjusting seat and is rotatably connected with the one end in adjusting seat inside, there are two mobile screw sleeves on the outer wall of bidirectional screw rod, the top of two mobile screw sleeves is fixedly connected with mounting block, by adjusting two positioning conical, the insertion of different machine type bucket rod is realized, when switching machine type carries out bucket rod welding, clamp need not be replaced, can be clamped, improve the flexibility of production line, reduce the time of replacing clamp.

Description

Technical Field

[0001] This utility model relates to the field of clamping fixture technology, specifically a clamping fixture for an excavator boom. Background Technology

[0002] The excavator boom is a crucial component of the excavator. During loading, it requires boring to enlarge the hole diameter and improve accuracy. This process necessitates the use of clamping fixtures to hold and position the excavator boom. Existing fixtures are made with chucks and fixture bases of specific sizes based on the distance and size of the clamping and positioning holes for different excavator boom models. When welding booms of different models, the corresponding fixtures are reinstalled onto the positioner.

[0003] Existing fixtures are not fully compatible with the booms of different machine models. On the boom welding production line, when welding booms of different machine models, it is necessary to change to the fixtures corresponding to the machine models. This not only requires the manufacture of fixtures for each machine model, but also requires manual replacement of the corresponding fixtures before welding, which takes up production time, affects the production cycle, and reduces the production efficiency of booms. Utility Model Content

[0004] The purpose of this utility model is to provide a clamping fixture for excavator booms, so as to solve the problem mentioned in the background art that it is inconvenient to adjust the clamping fixture according to the size of the excavator boom.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamping fixture for an excavator boom, comprising a mounting plate, both ends of which are fixedly connected to extension plates, an adjusting seat fixedly connected between the top ends of the two extension plates, a first motor fixedly connected to one end of the adjusting seat, a bidirectional threaded rod fixedly connected to the output end of the first motor, the other end of the bidirectional threaded rod extending into the interior of the adjusting seat and rotatably connected to one end inside the adjusting seat, two movable threaded sleeves on the outer wall of the bidirectional threaded rod, an mounting block fixedly connected to the top end of each of the two movable threaded sleeves, an insertion groove provided at one end of each of the two mounting blocks, and a positioning cone installed inside the insertion groove by a fixing mechanism;

[0006] The fixing mechanism includes a bidirectional screw. One end of the mounting block is fixedly connected to two connecting plates, one end of which has a connecting through hole. The outer wall of the bidirectional screw is rotatably connected to the inside of the connecting through hole. The other end of the bidirectional screw is rotatably connected to the top of the other connecting plate. One end of the mounting block has an adjusting groove. Two stabilizing sleeves are screwed onto the outer wall of the bidirectional screw. One end of each of the two stabilizing sleeves is fixedly connected to a moving block. The ends of the two moving blocks that are close to each other are fixedly connected to a fixing member. One end of the positioning cone is fixedly connected to an mounting member. One end of the mounting member is connected to a connecting member by a fixing screw. One end of the connecting member is fixedly connected to an insertion block. Both ends of the insertion block have limiting through grooves.

[0007] Preferably, two limiting rods are fixedly connected between the two ends inside the adjusting seat, and limiting sleeves are slidably connected to the outer walls of the two limiting rods. One end of the multiple limiting sleeves is fixedly connected to the two ends of the two movable screw sleeves respectively.

[0008] Preferably, both ends of the adjusting seat are fixedly connected to movable guide plates, and the top ends of the two movable guide plates are slidably connected to two movable sliders, and the top ends of the four movable sliders are respectively fixedly connected to the bottom sides of the two mounting blocks.

[0009] Preferably, two limiting rods are fixedly connected between the two connecting plates, and limiting sleeves are slidably connected to the outer walls of the two limiting rods. One end of the limiting sleeve is fixedly connected to one end of the stabilizing screw sleeve.

[0010] Preferably, a rotating handle is fixedly connected to the top end of each of the two bidirectional screws.

[0011] Preferably, the top of the mounting plate has multiple mounting through holes, and each of the multiple mounting through holes is fitted with a fixing screw.

[0012] Beneficial effects

[0013] This utility model provides a clamping fixture for excavator booms, which has the following advantages:

[0014] The clamping fixture for the excavator boom moves the two ends of the boom between two positioning cones. Upon energizing the first motor, the output of the first motor drives a bidirectional threaded rod to rotate. During rotation, the bidirectional threaded rod moves the movable threaded sleeve, causing the mounting block and the two positioning cones to move closer together. By adjusting the two positioning cones, booms of different machine models can be inserted. When switching machine models for boom welding, clamping can be performed without changing the fixture, improving the flexibility of the production line and reducing the time spent changing fixtures. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present invention;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a frontal cross-sectional view of the present invention.

[0018] Figure 4 This is a top view sectional structural diagram of the present invention;

[0019] Figure 5 This utility model Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Mounting plate; 2. Extension plate; 3. Adjusting seat; 4. First motor; 5. Bidirectional threaded rod; 6. Moving threaded sleeve; 7. Mounting block; 8. Positioning cone; 9. Bidirectional screw; 10. Connecting plate; 11. Stabilizing threaded sleeve; 12. Moving block; 13. Fixing component; 14. Mounting component; 15. Connecting component; 16. Insertion block; 17. Limiting rod; 18. Limiting sleeve; 19. Moving guide plate; 20. Moving slider; 21. Limiting rod; 22. Limiting sleeve; 23. Rotating handle; 24. Fixing screw. Detailed Implementation

[0021] Please see Figures 1-5A clamping fixture for an excavator boom includes a mounting plate 1. Extension plates 2 are fixedly connected to both ends of the mounting plate 1. An adjusting seat 3 is fixedly connected between the top ends of the two extension plates 2. A first motor 4 is fixedly connected to one end of the adjusting seat 3. A bidirectional threaded rod 5 is fixedly connected to the output end of the first motor 4. The other end of the bidirectional threaded rod 5 extends into the interior of the adjusting seat 3 and is rotatably connected to one end inside the adjusting seat 3. Two movable threaded sleeves 6 are mounted on the outer wall of the bidirectional threaded rod 5. Mounting blocks 7 are fixedly connected to the top ends of the two movable threaded sleeves 6. An insertion groove is provided at one end of each mounting block 7. A positioning cone 8 is installed inside the insertion groove via a fixing mechanism. The fixing mechanism includes a bidirectional screw 9. Two connecting plates 10 are fixedly connected to one end of the mounting block 7. One end of one connecting plate 10 has a connecting through hole. The outer wall of the bidirectional screw 9 is rotatably connected to the interior of the connecting through hole. The other end of the bidirectional screw 9 is rotatably connected to the top end of the other connecting plate 10. An adjusting groove is provided at one end of the mounting block 7. Two stabilizing sleeves 11 are screwed onto the outer wall of rod 9. One end of each stabilizing sleeve 11 is fixedly connected to a moving block 12. The ends of the two moving blocks 12 that are close to each other are fixedly connected to a fixing member 13. One end of the positioning cone 8 is fixedly connected to an mounting member 14. One end of the mounting member 14 is connected to a connecting member 15 by a fixing screw 24. One end of the connecting member 15 is fixedly connected to an insertion block 16. Both ends of the insertion block 16 are provided with limiting through slots. After the two ends of the excavator stick are moved between the two positioning cones 8, the output end of the first motor 4 will drive the bidirectional threaded rod 5 to rotate when the first motor 4 is powered on. During the rotation of the bidirectional threaded rod 5, the moving sleeve 6 will move, and the mounting block 7 and the two positioning cones 8 will move closer to each other. By adjusting the two positioning cones 8, the sticks of different models can be inserted. When switching models for stick welding, there is no need to change the clamps, which improves the flexibility of the production line and reduces the time for changing clamps.

[0022] It should also be noted that two limiting rods 17 are fixedly connected between the two ends inside the adjusting seat 3. Limiting sleeves 18 are slidably connected to the outer walls of both limiting rods 17. One end of each limiting sleeve 18 is fixedly connected to both ends of two movable screw sleeves 6. When the movable screw sleeves 6 move, they move along the outer walls of the limiting rods 17 via the limiting sleeves 18, thus improving the stability of the movable screw sleeves 6. Moving guide plates 19 are fixedly connected to both ends of the adjusting seat 3. Two movable sliders 20 are slidably connected to the top ends of the two moving guide plates 19. The top ends of the four movable sliders 20 are fixedly connected to the bottom sides of the two mounting blocks 7. When the movable screw sleeves 6 move the mounting blocks 7, The sliding block 20 moves inside the moving guide plate 19 to improve the stability of the moving block 7. Two limiting rods 21 are fixedly connected between the two connecting plates 10. Limiting sleeves 22 are slidably connected to the outer walls of the two limiting rods 21. One end of the limiting sleeve 22 is fixedly connected to one end of the stabilizing screw sleeve 11. When the bidirectional screw 9 drives the stabilizing screw sleeve 11 to move, it drives the limiting sleeve 22 to move on the outer wall of the limiting rod 21, further improving the stability of the stabilizing screw sleeve 11. The top ends of the two bidirectional screws 9 are fixedly connected to rotating handles 23, which improves the convenience of the operator to rotate the bidirectional screws 9 when adjusting them.

[0023] Preferably, the top of the mounting plate 1 has multiple mounting through holes, and each of the multiple mounting through holes is fitted with a fixing screw 24.

[0024] The first motor 4 is a commercially available device known to those skilled in the art. We are simply using it here without making any structural or functional improvements, and we will not go into detail about it here.

[0025] In summary, when using this excavator boom clamping fixture, firstly, the two ends of the excavator boom are moved between the two positioning cones 8. Then, after the first motor 4 is powered on, the output end of the first motor 4 will drive the bidirectional threaded rod 5 to rotate. During the rotation of the bidirectional threaded rod 5, the moving screw sleeve 6 will move, and the positions of the mounting block 7 and the two positioning cones 8 will move closer to each other. By adjusting the two positioning cones 8, the boom of different models can be inserted. After the bidirectional screw 9 is twisted, the bidirectional screw 9 will drive the position of the stabilizing screw sleeve 11 to move through the thread, and drive the positions of the moving block 12 and the fixing part 13 to move until they are far away from the limiting groove. This completes the effect of the insertion block 16 moving freely inside the insertion groove, and completes the free replacement of the positioning cones 8.

[0026] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A clamping fixture for an excavator boom, comprising a mounting plate (1), characterized in that: Both ends of the mounting plate (1) are fixedly connected to extension plates (2), and an adjustment seat (3) is fixedly connected between the top ends of the two extension plates (2). One end of the adjustment seat (3) is fixedly connected to a first motor (4), and the output end of the first motor (4) is fixedly connected to a bidirectional threaded rod (5). The other end of the bidirectional threaded rod (5) extends into the interior of the adjustment seat (3) and is rotatably connected to one end inside the adjustment seat (3). There are two movable threaded sleeves (6) on the outer wall of the bidirectional threaded rod (5). The top ends of the two movable threaded sleeves (6) are fixedly connected to mounting blocks (7). One end of the two mounting blocks (7) is provided with an insertion groove. A positioning cone (8) is installed inside the insertion groove through a fixing mechanism. The fixing mechanism includes a bidirectional screw (9), and one end of the mounting block (7) is fixedly connected to two connecting plates (10). One end of one of the connecting plates (10) is provided with a connecting through hole. The outer wall of the bidirectional screw (9) is rotatably connected to the inside of the connecting through hole. The other end of the bidirectional screw (9) is rotatably connected to the top of the other connecting plate (10). One end of the mounting block (7) is provided with an adjustment groove. Two stabilizing sleeves (11) are screwed onto the outer wall of the bidirectional screw (9). One end of each of the two stabilizing sleeves (11) is fixedly connected to a moving block (12). The ends of the two moving blocks (12) that are close to each other are fixedly connected to a fixing member (13). One end of the positioning cone (8) is fixedly connected to an mounting member (14). One end of the mounting member (14) is installed with a connecting member (15) by a fixing screw (24). One end of the connecting member (15) is fixedly connected to an insertion block (16). Both ends of the insertion block (16) are provided with limiting through grooves.

2. The clamping fixture for an excavator boom according to claim 1, characterized in that: Two limiting rods (17) are fixedly connected between the two ends inside the adjusting seat (3). Limiting sleeves (18) are slidably connected on the outer walls of the two limiting rods (17). One end of the multiple limiting sleeves (18) is fixedly connected to the two ends of the two movable screw sleeves (6).

3. The clamping fixture for an excavator boom according to claim 2, characterized in that: Both ends of the adjustment seat (3) are fixedly connected to movable guide plates (19), and the top ends of the two movable guide plates (19) are slidably connected to two movable sliders (20). The top ends of the four movable sliders (20) are respectively fixedly connected to the bottom ends of the two mounting blocks (7).

4. The clamping fixture for an excavator boom according to claim 3, characterized in that: Two limiting rods (21) are fixedly connected between the two connecting plates (10). A limiting sleeve (22) is slidably connected to the outer wall of each of the two limiting rods (21). One end of the limiting sleeve (22) is fixedly connected to one end of the stabilizing screw sleeve (11).

5. The clamping fixture for an excavator boom according to claim 4, characterized in that: The top ends of both bidirectional screws (9) are fixedly connected to rotating handles (23).

6. The clamping fixture for an excavator boom according to claim 5, characterized in that: The top of the mounting plate (1) has multiple mounting through holes, and each of the multiple mounting through holes is fitted with a fixing screw (24).

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