Positioning clamp suitable for excavator bucket machining

Abstract

The utility model relates to the technical field of excavator machining, and discloses a positioning clamp suitable for excavator bucket machining, which comprises a support frame, a support plate is fixedly connected outside the support frame, a pneumatic cylinder is fixedly connected to the top of the support plate, and a fixed plate is fixedly connected to the driving end of the pneumatic cylinder. The outer portion of the fixing plate is fixedly connected with gear plates, the inner wall of the supporting frame is fixedly connected with an operation plate, the top of the operation plate is rotationally connected with a pulley, the pulley is in gear connection with the two gear plates, the top of the fixing plate is fixedly connected with a connecting rod, and the other end of the connecting rod is fixedly connected with a sliding block. According to the automatic part clamping device, the first motor is started to drive the balance rod to slide the conveying belt so that parts can be adjusted, the pneumatic cylinder is started to drive the fixing plate to pull the gear plate so that the sliding block can clamp the parts, and the parts are more stable and not prone to sliding in the clamping process.

Description

Technical Field

[0001] This utility model relates to the field of excavator processing technology, and in particular to a positioning fixture suitable for excavator bucket processing. Background Technology

[0002] As a key piece of machinery in the engineering construction field, the manufacturing quality of excavator buckets directly affects the excavator's working efficiency and service life. The manufacturing process of excavator buckets involves a series of complex machining steps, such as cutting, welding, drilling, and milling. These steps place strict requirements on the dimensional accuracy, shape accuracy, and positional accuracy of the bucket.

[0003] In recent years, with the development of information technology, the requirements for high precision and high reliability in the machining field have been continuously increasing, placing higher demands on the accuracy and stability of fixture design. However, for the specific application scenarios of excavator buckets, existing positioning fixtures still have many shortcomings. For example, the clamping performance of existing fixtures is not stable enough, and they cannot effectively prevent the bucket from moving or shaking during processing, leading to reduced processing efficiency and even affecting the service life of the equipment. In addition, existing positioning fixtures sometimes cause bucket deformation during processing, thereby affecting its overall structure and performance.

[0004] In traditional excavator bucket machining, the positioning fixtures used are insufficient to meet the ever-increasing precision requirements. Due to the complex shape of the bucket, which often features irregular curved surfaces and varying sizes of control surfaces, a positioning fixture suitable for excavator bucket machining is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a positioning fixture suitable for excavator bucket processing, aiming to improve the problem of inaccurate clamping and adjustment of parts in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A positioning fixture suitable for processing excavator buckets includes a support frame, a support plate fixedly connected to the outside of the support frame, a pneumatic cylinder fixedly connected to the top of the support plate, a fixed plate fixedly connected to the drive end of the pneumatic cylinder, a gear plate fixedly connected to the outside of the fixed plate, an operating plate fixedly connected to the inner wall of the support frame, a pulley rotatably connected to the top of the operating plate, the pulley being geared to two of the gear plates, a connecting rod fixedly connected to the top of the fixed plate, a slider fixedly connected to the other end of the connecting rod, rubber blocks fixedly connected to the adjacent ends of the two sliders, a conveyor belt rotatably connected to the inner wall of the support frame, a straightening component on the top of the support plate, and a cleaning component at the bottom of the support frame.

[0008] As a further description of the above technical solution:

[0009] The cleaning assembly includes a fixed frame, the other end of which is fixedly connected to the bottom of the support frame. A second motor is fixedly connected to the inner wall of the fixed frame. A turntable is fixedly connected to the drive end of the second motor. A follower rod is rotatably connected to the top of the turntable. A fixed rod is rotatably connected to the other end of the follower rod. A rotating rod is fixedly connected to the inner wall of the fixed rod. A roller is rotatably connected to the outside of the rotating rod. The outside of the roller slides on the outside of the conveyor belt.

[0010] As a further description of the above technical solution:

[0011] The correction assembly includes two motors. The bottom of each motor is fixedly connected to the inner wall of the support plate. A clamping block is fixedly connected to the drive end of each motor. A balance bar is rotatably connected to the inner wall of the clamping block. A sliding frame is fixedly connected to the other end of the balance bar.

[0012] As a further description of the above technical solution:

[0013] Both ends of the rotating rod are slidably connected to support rods, and the other end of the support rod is fixedly connected to the inner wall of the support frame;

[0014] As a further description of the above technical solution:

[0015] The balance bar is rotatably connected to a fixed rotating block, and the bottom of the fixed rotating block is fixedly connected to the top of the support frame.

[0016] As a further description of the above technical solution:

[0017] The two fixed plates are slidably connected to the inner wall of the support frame, and the bottom of the gear plate is slidably connected to the top of the operating plate;

[0018] As a further description of the above technical solution:

[0019] The bottom of the slider is slidably connected to the top of the conveyor belt, and the bottom of the rubber block is slidably connected to the top of the conveyor belt;

[0020] As a further description of the above technical solution:

[0021] The inner wall of the sliding frame is rotatably connected to a roller, and the outer side of the roller is rotatably connected to the outside of the conveyor belt.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the conveyor belt is turned on, and the motor drives the other end of the balance bar to slide on the conveyor belt to adjust the parts. The pneumatic cylinder is started to drive the fixed plate to pull the gear plate so that the slider clamps the parts, making the parts more stable during the clamping process and less prone to slippage.

[0024] 2. In this utility model, the starting motor drives the turntable to rotate, which pulls the follower rod to move the rotating rod left and right, so that the roller can better clean the conveyor belt. The roller will rotate with the rotation of the conveyor belt, so that the roller can be fully utilized. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a positioning fixture suitable for processing excavator buckets according to the present invention;

[0026] Figure 2 This is a schematic diagram of the conveyor belt structure of a positioning fixture suitable for excavator bucket processing proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the support frame for a positioning fixture suitable for processing excavator buckets, as proposed in this utility model.

[0028] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 5 for Figure 2 Enlarged view of point B in the middle;

[0030] Figure 6 for Figure 3 Enlarged view of point C in the middle.

[0031] Legend:

[0032] 1. Support frame; 2. Support plate; 3. Pneumatic cylinder; 4. Fixing plate; 5. Gear plate; 6. Operating panel; 7. Pulley; 8. Connecting rod; 9. Slider; 10. Rubber block; 11. Conveyor belt; 12. Motor 1; 13. Clamping block; 14. Balance bar; 15. Fixed rotating block; 16. Sliding frame; 17. Roller; 18. Fixing frame; 19. Motor 2; 20. Turntable; 21. Follower rod; 22. Fixing rod; 23. Rotating rod; 24. Roller; 25. Support rod. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5 This utility model provides an embodiment of a positioning fixture suitable for processing excavator buckets, comprising a support frame 1, which serves as the basic support structure for the entire positioning fixture. A support plate 2 is fixedly connected to the outside of the support frame 1, and a pneumatic cylinder 3 is fixedly connected to the top of the support plate 2. The pneumatic cylinder 3 is a key power component for clamping the workpiece. A fixed plate 4 is fixedly connected to the drive end of the pneumatic cylinder 3, and the fixed plate 4 moves with the movement of the drive end of the pneumatic cylinder 3. A gear plate 5 is fixedly connected to the outside of the fixed plate 4, and the gear plate 5, driven by the fixed plate 4, transmits force and changes the direction of movement.

[0035] An operating plate 6 is fixedly connected to the inner wall of the support frame 1. A pulley 7 is rotatably connected to the top of the operating plate 6. The pulley 7 is connected to two gear plates 5 by gears. This connection method allows the pulley 7 to rotate when the gear plates 5 are moved under the drive of the pneumatic cylinder 3, thereby realizing a specific mechanical movement. A connecting rod 8 is fixedly connected to the top of the fixed plate 4. A slider 9 is fixedly connected to the other end of the connecting rod 8. The slider 9 can move along a specific direction under the drive of the relevant structure to realize the clamping operation of the parts. A rubber block 10 is fixedly connected to one end of the two sliders 9. The rubber block 10 has good elasticity and friction. When clamping the parts, it can protect the surface of the parts from being scratched and increase the friction between the parts and the parts, making the parts more stable during the clamping process and less prone to slippage.

[0036] A conveyor belt 11 is rotatably connected to the inner wall of the support frame 1. The conveyor belt 11 is used to transport parts during the excavator bucket processing. Turning on the conveyor belt 11 causes the parts on the conveyor belt 11 to start moving and transport the parts to the designated processing position. The top of the support plate 2 has a straightening component, which is used to adjust the position of the parts on the conveyor belt 11 to ensure that the parts can accurately enter the subsequent clamping process. The bottom of the support frame 1 has a cleaning component, which is used to clean the conveyor belt 11 to ensure the cleanliness of the conveyor belt 11 and thus avoid impurities from affecting the processing of the parts.

[0037] The straightening assembly includes two motors 12, which serve as the power components of the straightening assembly. They are installed on the inner wall of the support plate 2, with their bottoms fixedly connected to the inner wall of the support plate 2. When the motors 12 are turned on, they drive their driving ends to move. A clamping block 13 is fixedly connected to the driving end of the motors 12. The clamping block 13 moves along a certain direction under the drive of the motors 12. A balance bar 14 is rotatably connected to the inner wall of the clamping block 13. The balance bar 14 plays the role of transmitting motion and maintaining balance. When the clamping block 13 moves under the drive of the motors 12, the other end of the balance bar 14 slides against the conveyor belt 11. In this way, the position of the parts on the conveyor belt 11 is adjusted, making the parts more accurate when entering the subsequent clamping process. A sliding frame 16 is fixedly connected to the other end of the balance bar 14. The sliding frame 16 moves with the movement of the balance bar 14, further assisting in the adjustment of the position of the parts.

[0038] The balance bar 14 is externally rotatably connected to a fixed rotating block 15. The bottom of the fixed rotating block 15 is fixedly connected to the top of the support frame 1. The fixed rotating block 15 provides a stable rotation fulcrum for the balance bar 14, ensuring the stability and flexibility of the balance bar 14 during movement, thereby better realizing the adjustment of the position of the parts.

[0039] Reference Figure 1 , Figure 3 and Figure 6 The cleaning assembly includes a mounting frame 18, which is used to fix other components of the cleaning assembly. Its other end is fixedly connected to the bottom of the support frame 1, providing a stable installation base for the entire cleaning assembly. A second motor 19 is fixedly connected to the inner wall of the mounting frame 18. The second motor 19 serves as the power source for the cleaning assembly. When the second motor 19 is started, it will drive its drive end to rotate. A turntable 20 is fixedly connected to the drive end of the second motor 19. The turntable 20 makes a circular motion under the drive of the second motor 19. A follower rod 21 is rotatably connected to the top of the turntable 20. The follower rod 21 will swing accordingly as the turntable 20 rotates. A fixed rod 22 is rotatably connected to the other end of the follower rod 21. The fixed rod 22 will move along a certain trajectory under the drive of the follower rod 21.

[0040] A rotating rod 23 is fixedly connected to the inner wall of the fixed rod 22. The rotating rod 23 moves with the movement of the fixed rod 22. A roller 24 is rotatably connected to the outside of the rotating rod 23. The roller 24 contacts the conveyor belt 11. When the motor 29 drives the turntable 20 to rotate and pulls the follower rod 21 to move the rotating rod 23 left and right, the roller 24 can better clean the conveyor belt 11. The roller 24 will rotate with the rotation of the conveyor belt 11, so the roller 24 can be fully used to thoroughly clean the surface of the conveyor belt 11.

[0041] Both ends of the rotating rod 23 are slidably connected to support rods 25. The other end of the support rod 25 is fixedly connected to the inner wall of the support frame 1. The support rod 25 plays a supporting and guiding role, ensuring the stability and accuracy of the rotating rod 23 during left and right movement, so that the roller 24 can clean the conveyor belt 11 more effectively.

[0042] Reference Figures 1 to 3 The two fixed plates 4 are externally slidably connected to the inner wall of the support frame 1. This connection method allows the fixed plates 4 to slide smoothly along the inner wall of the support frame 1 in a specific direction, ensuring that the clamping action can be accurately performed under the drive of the pneumatic cylinder 3. The bottom of the gear plate 5 is slidably connected to the top of the operating plate 6, ensuring that the gear plate 5 can slide stably along the top of the operating plate 6 during the movement, realizing accurate gear connection with the pulley 7 and effective transmission of force.

[0043] The bottom of the slider 9 is slidably connected to the top of the conveyor belt 11. The slider 9 can slide along a specific direction on the top of the conveyor belt 11 to clamp the part in a suitable position. The bottom of the rubber block 10 is slidably connected to the top of the conveyor belt 11. The rubber block 10 slides on the top of the conveyor belt 11 as the slider 9 moves. When clamping the part, it contacts the part and plays a role in protecting the part and increasing stability.

[0044] The inner wall of the sliding frame 16 is rotatably connected to a roller 17, and the outer side of the roller 17 is rotatably connected to the outside of the conveyor belt 11. The roller 17 makes the sliding frame 16 move more smoothly outside the conveyor belt 11, reduces friction, and thus more effectively assists the balance bar 14 in adjusting the position of the parts.

[0045] Working principle: The conveyor belt 11 is turned on, causing the parts on the conveyor belt 11 to start moving. The motor 12 is turned on, which drives the other end of the balance bar 14 to slide against the conveyor belt 11, allowing the parts to be adjusted and clamped more accurately. The pneumatic cylinder 3 is turned on, which drives the fixed plate 4 to pull the gear plate 5, which causes the connecting rod 8 to drive the slider 9 to clamp the parts. The rubber block 10 has good elasticity and friction. When clamping the parts, it can protect the surface of the parts from being scratched and increase the friction between the parts and the parts, making the parts more stable during the clamping process and less prone to slippage. During the bucket processing, the parts may have positional deviations due to factors such as conveying and placement.

[0046] After starting motor 219, the drive end of motor 219 drives turntable 20 to perform circular motion. The rotation of turntable 20 causes the follower rod 21 connected to it to start swinging. The swinging of follower rod 21 drives fixed rod 22 to move, which in turn causes rotating rod 23 fixed on fixed rod 22 to move left and right along support rod 25. Since roller 24 is rotatably connected to rotating rod 23 and in contact with conveyor belt 11, when rotating rod 23 moves left and right, roller 24 will roll on the surface of conveyor belt 11. At the same time, roller 24 will rotate with the rotation of conveyor belt 11, thereby achieving a thorough cleaning of the surface of conveyor belt 11.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning fixture suitable for machining excavator buckets, comprising a support frame (1), characterized in that: The support frame (1) is externally fixedly connected to a support plate (2), the top of the support plate (2) is fixedly connected to a pneumatic cylinder (3), the drive end of the pneumatic cylinder (3) is fixedly connected to a fixed plate (4), the outside of the fixed plate (4) is fixedly connected to a gear plate (5), the inner wall of the support frame (1) is fixedly connected to an operating plate (6), the top of the operating plate (6) is rotatably connected to a pulley (7), the pulley (7) is geared to the two gear plates (5), the top of the fixed plate (4) is fixedly connected to a connecting rod (8), the other end of the connecting rod (8) is fixedly connected to a slider (9), the near ends of the two sliders (9) are fixedly connected to a rubber block (10), the inner wall of the support frame (1) is rotatably connected to a conveyor belt (11), the top of the support plate (2) has a correction component, and the bottom of the support frame (1) has a cleaning component.

2. A positioning fixture suitable for excavator bucket machining according to claim 1, characterized in that: The cleaning assembly includes a fixed frame (18), the other end of which is fixedly connected to the bottom of the support frame (1). A second motor (19) is fixedly connected to the inner wall of the fixed frame (18). A turntable (20) is fixedly connected to the drive end of the second motor (19). A follower rod (21) is rotatably connected to the top of the turntable (20). A fixed rod (22) is rotatably connected to the other end of the follower rod (21). A rotating rod (23) is fixedly connected to the inner wall of the fixed rod (22). A roller (24) is rotatably connected to the outside of the rotating rod (23). The outside of the roller (24) slides on the outside of the conveyor belt (11).

3. A positioning fixture suitable for excavator bucket machining according to claim 1, characterized in that: The correction assembly includes two motors (12), the bottom of which is fixedly connected to the inner wall of the support plate (2), the driving end of which is fixedly connected to a clamping block (13), the inner wall of which is rotatably connected to a balance bar (14), and the other end of which is fixedly connected to a sliding frame (16).

4. A positioning fixture suitable for excavator bucket machining according to claim 2, characterized in that: Both ends of the rotating rod (23) are slidably connected to support rods (25), and the other end of the support rods (25) is fixedly connected to the inner wall of the support frame (1).

5. A positioning fixture suitable for excavator bucket machining according to claim 3, characterized in that: The balance bar (14) is rotatably connected to a fixed rotating block (15), and the bottom of the fixed rotating block (15) is fixedly connected to the top of the support frame (1).

6. A positioning fixture suitable for excavator bucket machining according to claim 1, characterized in that: The two fixed plates (4) are externally slidably connected to the inner wall of the support frame (1), and the bottom of the gear plate (5) is slidably connected to the top of the operating plate (6).

7. A positioning fixture suitable for excavator bucket machining according to claim 2, characterized in that: The bottom of the slider (9) is slidably connected to the top of the conveyor belt (11), and the bottom of the rubber block (10) is slidably connected to the top of the conveyor belt (11).

8. A positioning fixture suitable for excavator bucket machining according to claim 3, characterized in that: The inner wall of the sliding frame (16) is rotatably connected to a roller (17), and the outer side of the roller (17) is rotatably connected to the outside of the conveyor belt (11).

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