Machining and positioning tool for gear box

Abstract

The utility model discloses a gear box processing and positioning tool, which relates to the technical field of gear box processing, and comprises a bottom plate, the top of the bottom plate is provided with a sliding chute, clamping blocks are symmetrically arranged in the sliding chute, and the opposite sides of the clamping blocks are fixedly connected with suckers; by starting the servo motor, the bidirectional lead screw can be driven to rotate, then the clamping block is controlled to move, preliminary clamping and positioning of the gearbox are achieved, operation is easy and convenient, the gearbox is adsorbed and positioned through the suction cup, when the clamping block is close to the gearbox, the suction cup can be tightly attached to the surface of the gearbox, and the clamping block is not prone to falling off. The gear box is adsorbed by discharging internal air to form atmospheric pressure difference, stable and uniform clamping force is provided for the gear box, the problem that local pressure on the surface of the gear box is too large can be avoided through adsorption type clamping, the stability of the gear box in the machining process is kept, and the safety and the machining precision in the machining process are improved.

Description

Technical Field

[0001] This utility model relates to the field of gearbox processing technology, specifically to a gearbox processing positioning fixture. Background Technology

[0002] In the manufacturing process of gearboxes, the machining accuracy directly affects the gearbox's performance, reliability, and service life. Existing gearbox machining and positioning fixtures often employ rigid structures to directly clamp the gearbox. When applying clamping force, because of the rigid contact between the fixture and the gearbox surface, it is difficult to ensure a uniform distribution of the clamping force. This uneven clamping force can lead to excessive localized stress on the gearbox, easily causing deformation, scratches, or indentations on the gearbox surface, affecting the overall performance and service life of the gearbox. Furthermore, factors such as vibration during machining and the forces exerted by the machining equipment can cause the clamping to loosen, resulting in gearbox displacement during processing.

[0003] To address these issues, we designed a gearbox machining and positioning fixture. Utility Model Content

[0004] The purpose of this utility model is to provide a gearbox machining and positioning fixture to solve the problems mentioned in the background art.

[0005] To solve the above technical problems, this utility model provides a gearbox processing and positioning fixture, including a base plate, a sliding groove on the top of the base plate, clamping blocks symmetrically arranged inside the sliding groove, suction cups fixedly connected to opposite sides of the clamping blocks, an exhaust pipe connected to the air outlet of the suction cups, the exhaust pipe passing through the clamping blocks, and a valve installed at the end of the exhaust pipe away from the clamping blocks;

[0006] A bidirectional lead screw is rotatably connected to the inner side wall of the base plate. The bidirectional lead screw is threadedly connected to the clamping block. A servo motor is installed on one side of the base plate. One end of the bidirectional lead screw passes through the slide groove and is fixedly connected to the output end of the servo motor.

[0007] Furthermore, a bracket is provided below the base plate, a drive motor is installed on one side of the bracket, and a transmission shaft is symmetrically arranged on the bracket. The transmission shaft passes through the bracket and is rotatably connected to the bracket. The output end of the drive motor is fixedly connected to the transmission shaft. A side plate is fixedly connected to the side of the transmission shaft away from the drive motor, and the base plate is fixedly connected to the bottom of the side plate.

[0008] Furthermore, a buffer pad is fixedly connected to the opposite side of the clamping block. The buffer pad is made of rubber, and the suction cup passes through the exhaust pipe.

[0009] Furthermore, a guide rod is provided on one side of the bidirectional lead screw, the guide rod is fixedly connected to the inside of the slide groove, and the clamping block is slidably connected to the guide rod.

[0010] Furthermore, the valve is made of stainless steel.

[0011] Furthermore, a sliding groove is provided on the top of the base plate, and an orientation adjustment component is provided on the base plate. The orientation adjustment component includes an adjustment motor, which is installed at the bottom of the sliding groove. A turntable is fixedly connected to the output end of the adjustment motor, and a placement platform is fixedly connected to the top of the turntable.

[0012] Furthermore, a circular rubber pad is fixedly connected between the placement platform and the turntable, and the circular rubber pad is distributed in a ring array.

[0013] Furthermore, the output shaft of the adjustment motor is connected to the turntable via a key.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By starting the servo motor, the bidirectional lead screw can be driven to rotate, thereby controlling the movement of the clamping block to achieve initial clamping and positioning of the gearbox. The operation is simple. The gearbox is positioned by adsorption using a suction cup. When the clamping block is close to the gearbox, the suction cup can fit tightly against the surface of the gearbox. By expelling the internal air, an atmospheric pressure difference is formed to adsorb the gearbox, providing a stable and uniform clamping force for the gearbox. This adsorption clamping can avoid the problem of excessive local pressure on the surface of the gearbox, maintain the stability of the gearbox during the processing, and improve the safety and processing accuracy during the processing.

[0016] 2. The drive motor rotates the transmission shaft, allowing the tooling to expose different sides of the gearbox. This avoids the large errors introduced by traditional manual operation, maintains consistency in positioning and angle adjustment, provides position and angle references for subsequent processing, improves the processing accuracy of the gearbox, and allows for precise driving of the turntable by adjusting the torque output of the motor. This controls the rotation angle of the turntable and the placement table, and adjusts the orientation angle of the gearbox, facilitating processing at different angles of the gearbox. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is an exploded view of the orientation adjustment component of this utility model;

[0019] Figure 3 This is a side view of the present invention;

[0020] Figure 4 This utility model Figure 1 Enlarged diagram of point A in the middle.

[0021] In the diagram: 1. Bracket; 2. Side plate; 3. Base plate; 4. Slide groove; 5. Two-way lead screw; 6. Buffer pad; 7. Clamping block; 8. Drive shaft; 9. Drive motor; 10. Placement platform; 11. Turntable; 12. Adjustment motor; 13. Guide rod; 14. Suction cup; 15. Circular rubber pad; 16. Exhaust pipe; 17. Valve; 18. Servo motor. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4 The present invention provides a technical solution: a gearbox processing and positioning fixture, including a base plate 3, a sliding groove 4 on the top of the base plate 3, clamping blocks 7 symmetrically arranged inside the sliding groove 4, suction cups 14 fixedly connected to opposite sides of the clamping blocks 7, an exhaust pipe 16 connected to the air outlet of the suction cups 14, the exhaust pipe 16 passing through the clamping blocks 7, and a valve 17 installed at the end of the exhaust pipe 16 away from the clamping blocks 7;

[0024] A bidirectional lead screw 5 is rotatably connected to the inner side wall of the base plate 3. The bidirectional lead screw 5 is threadedly connected to the clamping block 7. A servo motor 18 is installed on one side of the base plate 3. One end of the bidirectional lead screw 5 passes through the slide groove 4 and is fixedly connected to the output end of the servo motor 18.

[0025] In practice, the gearbox is placed on top of the base plate 3, and the servo motor 18 is started. The servo motor 18 drives the bidirectional lead screw 5 to rotate, which will cause the two clamping blocks 7 to move towards or away from each other in the slide groove 4. The bidirectional thread design of the bidirectional lead screw 5 allows the two clamping blocks 7 to move symmetrically at the same time, realizing the left and right position adjustment and initial clamping and positioning of the gearbox. When the clamping blocks 7 approach the gearbox, the air inside the suction cup 14 is discharged through the exhaust pipe 16, and the suction cup 14 is tightly attached to the surface of the gearbox. The gearbox is adsorbed onto the suction cup 14 by the atmospheric pressure difference. At this time, the valve 17 is closed to prevent air backflow, thereby achieving further stable positioning of the gearbox. If it is necessary to release the adsorption of the gearbox, the valve 17 can be opened to balance the air pressure inside the suction cup 14 with the outside, releasing the adsorption force on the gearbox.

[0026] See Figure 1As shown, a bracket 1 is installed below the base plate 3. A drive motor 9 is mounted on one side of the bracket 1. A transmission shaft 8 is symmetrically arranged on the bracket 1, passing through the bracket 1 and rotatably connected to it. The output end of the drive motor 9 is fixedly connected to the transmission shaft 8. A side plate 2 is fixedly connected to the side of the transmission shaft 8 away from the drive motor 9. The base plate 3 is fixedly connected to the bottom of the side plate 2. When it is necessary to adjust the processing position or angle of the gearbox, the drive motor 9 is started, and its output end drives the transmission shaft 8 to rotate. The rotation of the transmission shaft 8 will cause the side plate 2 and the base plate 3 to rotate around the axis of the transmission shaft 8, rotating the gearbox placed on the base plate 3 to the required processing position, exposing different sides or angles of the gearbox, which facilitates subsequent processing operations.

[0027] See Figure 1 A buffer pad 6, made of rubber, is fixedly connected to the opposite side of the clamping block 7. The suction cup 14 passes through the exhaust pipe 16. When clamping the gearbox, the buffer pad 6 can absorb part of the clamping force, avoiding damage to the surface of the gearbox and preventing scratches or deformation caused by rigid contact. A guide rod 13 is provided on one side of the bidirectional lead screw 5. The guide rod 13 is fixedly connected to the inside of the slide groove 4. The clamping block 7 is slidably connected to the guide rod 13. When the bidirectional lead screw 5 rotates and drives the clamping block 7 to move in the slide groove 4, the guiding effect of the guide rod 13 makes the movement trajectory of the clamping block 7 more precise, thereby improving the positioning accuracy of the gearbox.

[0028] See Figure 4 Valve 17 is made of stainless steel, which is not easily deformed or damaged, maintaining its structural strength and supporting function, and is conducive to the long-term stable operation of the tooling.

[0029] See Figures 1-2 The base plate 3 has a groove 4 on its top and an orientation adjustment assembly on it. The orientation adjustment assembly includes an adjustment motor 12, which is mounted at the bottom of the groove 4. A turntable 11 is fixedly connected to the output end of the adjustment motor 12, and a placement platform 10 is fixedly connected to the top of the turntable 11. When the orientation of the gearbox placed on the placement platform 10 needs to be adjusted, the adjustment motor 12 is activated. Its output end drives the turntable 11, which is fixedly connected to it, to rotate, thereby causing the placement platform 10 to rotate synchronously. This controls the rotation angle of the turntable 11 and the placement platform 10. During rotation, the gearbox rotates together with the placement platform 10, thus changing its orientation on the horizontal plane, enabling it to align different surfaces or parts with machining tools or measuring instruments to meet the needs of different machining processes.

[0030] See Figure 2A circular rubber pad 15 is fixedly connected between the placement platform 10 and the turntable 11. The circular rubber pads 15 are arranged in a ring array. When the turntable 11 rotates or bears the weight of the gearbox and the forces during processing, the circular rubber pads 15 can absorb and disperse these forces, reduce vibration and impact, prevent wear and damage caused by rigid impacts between components, and improve the durability of the tooling. The output shaft of the adjusting motor 12 is connected to the turntable 11 by a key, which can realize the transmission of a large torque, maintain the torque output of the adjusting motor 12 to drive the turntable 11 to rotate, and withstand a certain axial force, so that the relative position of the turntable 11 and the adjusting motor 12 is stable during the orientation adjustment process.

[0031] Working principle:

[0032] Place the gearbox body on top of the base plate 3 and start the servo motor 18. The servo motor 18 drives the bidirectional lead screw 5 to rotate. Due to the threaded connection between the bidirectional lead screw 5 and the clamping block 7 and the bidirectional thread characteristics of the bidirectional lead screw 5, the two clamping blocks 7 are driven to move towards or away from each other in the slide groove 4, so as to adjust the position of the gearbox in the left and right directions and perform initial clamping and positioning. When the clamping block 7 approaches the gearbox, the air inside the suction cup 14 is discharged through the exhaust pipe 16, and the suction cup 14 is tightly attached to the surface of the gearbox. At this time, the valve 17 is closed to prevent air backflow and achieve further stable positioning.

[0033] When the gearbox's machining position or angle needs to be adjusted, the drive motor 9 is started. The drive motor 9 drives the transmission shaft 8 to rotate, causing the side plate 2 and the base plate 3 to rotate around the axis of the transmission shaft 8. This rotates the gearbox to the required machining position, exposing different sides or angles of the gearbox and preparing it for subsequent machining. When the gearbox's orientation needs to be adjusted, the adjustment motor 12 is started. The adjustment motor 12 drives the turntable 11, which is fixedly connected to it, to rotate, thereby causing the placement table 10 to rotate synchronously. By controlling the rotation angle of the turntable 11 and the placement table 10, the orientation of the gearbox on the horizontal plane is changed, aligning different surfaces or parts with machining tools or measuring instruments to meet the requirements of different machining processes.

[0034] If it is necessary to release the suction of the gearbox, open valve 17 to balance the air pressure inside suction cup 14 with the outside air, release the suction force on the gearbox, and then readjust the position, angle or orientation of the gearbox, or replace it with a different gearbox.

Claims

1. A gearbox machining and positioning fixture, comprising a base plate (3), wherein a groove (4) is provided on the top of the base plate (3), and clamping blocks (7) are symmetrically arranged inside the groove (4), characterized in that, A suction cup (14) is fixedly connected to the opposite side of the clamping block (7). The air outlet of the suction cup (14) is connected to an exhaust pipe (16). The exhaust pipe (16) passes through the clamping block (7). A valve (17) is installed at the end of the exhaust pipe (16) away from the clamping block (7). The inner wall of the base plate (3) is rotatably connected to a bidirectional lead screw (5), which is threadedly connected to the clamping block (7). A servo motor (18) is installed on one side of the base plate (3), and one end of the bidirectional lead screw (5) passes through the slide groove (4) and is fixedly connected to the output end of the servo motor (18).

2. The gearbox machining and positioning fixture as described in claim 1, characterized in that: A bracket (1) is provided below the base plate (3). A drive motor (9) is installed on one side of the bracket (1). A transmission shaft (8) is symmetrically arranged on the bracket (1). The transmission shaft (8) passes through the bracket (1) and is rotatably connected to the bracket (1). The output end of the drive motor (9) is fixedly connected to the transmission shaft (8). A side plate (2) is fixedly connected to the side of the transmission shaft (8) away from the drive motor (9). The base plate (3) is fixedly connected to the bottom of the side plate (2).

3. The gearbox machining and positioning fixture as described in claim 1, characterized in that: The clamping block (7) is fixedly connected to a buffer pad (6) on the opposite side. The buffer pad (6) is made of rubber. The suction cup (14) passes through the exhaust pipe (16).

4. The gearbox machining and positioning fixture as described in claim 1, characterized in that: The bidirectional lead screw (5) is provided with a guide rod (13) on one side. The guide rod (13) is fixedly connected to the inside of the slide groove (4). The clamping block (7) is slidably connected to the guide rod (13).

5. The gearbox machining and positioning fixture as described in claim 1, characterized in that: The valve (17) is made of stainless steel.

6. The gearbox machining and positioning fixture as described in claim 2, characterized in that: The bottom plate (3) has a sliding groove (4) on its top. The bottom plate (3) is provided with an orientation adjustment component, which includes an adjustment motor (12). The adjustment motor (12) is installed at the bottom of the sliding groove (4). The output end of the adjustment motor (12) is fixedly connected to a turntable (11). The top of the turntable (11) is fixedly connected to a placement platform (10).

7. The gearbox machining and positioning fixture as described in claim 6, characterized in that: A circular rubber pad (15) is fixedly connected between the placement platform (10) and the turntable (11), and the circular rubber pad (15) is distributed in a ring array.

8. The gearbox machining and positioning fixture as described in claim 6, characterized in that: The output shaft of the adjusting motor (12) is connected to the turntable (11) by a key.

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