A machining and positioning tool for automobile transmission shaft

Abstract

The application discloses a machining positioning tool for automobile transmission shafts and relates to the technical field of automobile part machining.

Description

Technical Field

[0001] This application relates to the field of automotive parts processing technology, and in particular to a machining and positioning fixture for automotive drive shafts. Background Technology

[0002] The driveshaft is an important component in the automotive transmission system that transmits power. Its function is to work with the gearbox and drive axle to transmit the engine's power to the wheels, thus generating driving force for the car. Generally, driveshafts undergo dynamic balancing tests and are adjusted on a balancing machine before leaving the factory.

[0003] Regarding the aforementioned technologies, the inventors believe that traditional tooling, due to its complex structure and inconvenient assembly and disassembly, makes it difficult to adjust the distance between two drive shafts. Furthermore, repeated assembly and disassembly require repositioning of the drive shafts, reducing the processing efficiency of subsequent drive shafts. Utility Model Content

[0004] The purpose of this application is to provide a machining and positioning fixture for automotive drive shafts to improve the inconvenience of adjusting the distance between two drive shafts and the potential wobbling of some clamping methods.

[0005] The machining and positioning fixture for an automotive drive shaft provided in this application adopts the following technical solution:

[0006] A machining and positioning fixture for an automotive drive shaft includes a plate, characterized in that: a fixing mechanism is provided on one side of the top surface of the plate, a servo motor is fixedly installed on the other side of the top surface of the plate, a lead screw is fixedly installed at the output end of the servo motor, the lead screw is rotatably installed inside the plate, a slider is threaded on the outer surface of the lead screw, and a positioning device is fixedly installed on the top surface of the slider.

[0007] By adopting the above technical solution, the fixing mechanism can fix the transmission shaft, thereby preventing it from moving. The lead screw can drive the positioning device on its top surface to move, thereby adjusting the distance between the fixing mechanism and the positioning device, making it suitable for transmission rods of different lengths.

[0008] Optionally, the fixing mechanism includes a mounting plate, a support plate is fixedly mounted on the top surface of the mounting plate, two first threaded rods are rotatably inserted into the middle of the support plate, a positioning sleeve is threaded on the outer surface of the two first threaded rods, and a driving component is provided at the bottom end of the two first threaded rods.

[0009] By adopting the above technical solution, the positioning sleeve can be driven to descend by two first threaded rods rotating in the same direction, thereby clamping and fixing the transmission rod with the positioning sleeve.

[0010] Optionally, the positioning device includes a fixing plate, which is fixedly installed on the top surface of the slider. Support plates are fixedly installed on both sides of the top surface of the fixing plate. A second threaded rod is threaded into the middle of each of the two support plates. A clamping plate is rotatably installed at the opposite end of each of the two second threaded rods. The two clamping plates cooperate in use.

[0011] By adopting the above technical solution, the two clamping plates can be moved by the two second threaded rods, which can clamp and fix the transmission shaft and prevent the transmission shaft from shaking.

[0012] Optionally, a groove is provided on the top surface of the plate, and the lead screw is rotatably installed inside the groove.

[0013] By adopting the above technical solution, by installing the lead screw inside the groove, the clamp can slide on the top surface of the plate, thereby making the plate parallel to the fixing mechanism and allowing the two to work together.

[0014] Optionally, the positioning device is distributed in parallel with the positioning sleeve.

[0015] By adopting the above technical solution, the positioning device and the fixing sleeve can be used together to clamp and fix the drive shaft.

[0016] Optionally, the drive component includes two synchronous pulleys and a rotating motor. The two synchronous pulleys are respectively fixedly sleeved on the bottom ends of two first threaded rods. The outer surfaces of the two synchronous pulleys are meshed with a synchronous belt. The output end of the rotating motor is fixedly connected to one of the first threaded rods.

[0017] By adopting the above technical solution, the rotating motor can drive two synchronous wheels to rotate, thereby driving the first threaded rods on both sides to rotate, so that the two first threaded rods cooperate to drive the positioning sleeves that are threaded onto their outer surfaces to move.

[0018] Optionally, the two first threaded rods are arranged in parallel.

[0019] By adopting the above technical solution, the synchronous pulley can drive the two first threaded rods to rotate in the same direction.

[0020] Optionally, the mounting plate and the plate body share an inner groove, and the rotating motor is fixedly installed inside the inner groove.

[0021] By adopting the above technical solution, the inner tank can hold the driving components and support the rotating motor to prevent it from falling off.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] This invention uses a slider in conjunction with a positioning device to move the positioning device, thereby adjusting the distance between the positioning device and the fixing mechanism, making it suitable for different drive shafts. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is a schematic diagram of part of the adjustment mechanism of this utility model.

[0026] Figure 3 This is a schematic diagram of part of the adjustment mechanism of this utility model.

[0027] Figure 4 This is a schematic diagram of the fixing mechanism of this utility model.

[0028] Figure 5 This is a schematic diagram of the fixing mechanism of this utility model.

[0029] In the diagram, 1. Plate body; 2. Fixing mechanism; 21. Mounting plate; 22. Inner groove; 23. Synchronous belt; 24. Synchronous pulley; 26. Rotating motor; 27. Positioning sleeve; 28. First threaded rod; 29. ​​Support plate; 3. Positioning device; 31. Lead screw; 32. Slider; 33. Servo motor; 34. Clamping plate; 35. Second threaded rod; 36. Support plate; 37. Fixing plate. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0031] A machining and positioning fixture for an automotive drive shaft, referring to... Figure 1 The device includes a plate 1, on both sides of the top surface of the plate 1, a fixing mechanism 2 and a positioning device 3 are respectively arranged in parallel. The fixing mechanism 2 is fixedly installed on the top surface of the plate 1, and the positioning device 3 can position the drive shaft.

[0032] Reference Figure 2 The top surface of the plate 1 has a groove, and a servo motor 33 is fixedly installed on one side of the groove. A lead screw 31 is fixedly installed at the output end of the servo motor 33. The lead screw 31 is rotatably installed inside the groove. A slider 32 is threaded on the outer surface of the lead screw 31, so that the lead screw 31 drives the slider 32 to slide inside the groove. At the same time, the slider 32 can drive the positioning device 3 to move, thereby adjusting the distance between the positioning device 3 and the fixing mechanism 2.

[0033] Reference Figure 3The top surface of the slider 32 is connected to the fixed plate 37 of the positioning device 3, so that the slider 32 can drive the fixed plate 37 to slide on the top surface of the plate 1.

[0034] Reference Figure 3 The top surface of the fixed plate 37 is equipped with two symmetrically distributed support plates 36. The middle of each support plate 36 is threaded with a second threaded rod 35. The opposite side of each of the two second threaded rods 35 is rotatably equipped with a clamping plate 34. The clamping plate 34 slides on the top surface of the fixed plate 37 and moves relative to each other, thereby clamping and fixing the drive shaft.

[0035] Reference Figure 4 The fixing mechanism 2 includes a mounting plate 21, which is fixedly installed on the top surface of the plate body 1. A support plate 29 is fixedly installed on the top surface of the mounting plate 21. Two first threaded rods 28 rotating in the same direction are inserted into the middle of the support plate 29. The outer surfaces of the two first threaded rods 28 are threaded together with a positioning sleeve 27. The interior of the positioning sleeve 27 is arc-shaped, which can clamp and fix the transmission shaft.

[0036] Reference Figure 5 The mounting plate 21 and the plate body 1 have an inner groove 22 in the middle. The rotating motor 26 is fixedly installed inside the inner groove 22 to prevent the rotating motor 26 from falling off.

[0037] Reference Figure 5 The output end of the rotating motor 26 is fixedly connected to one of the first threaded rods 28, so that the rotating motor 26 drives the first threaded rod 28 to rotate. The bottom outer surfaces of the two first threaded rods 28 are fixedly fitted with synchronous pulleys 24, and the outer surfaces of the two synchronous pulleys 24 are meshed with a synchronous belt 23, so that the two first threaded rods 28 can rotate synchronously through the cooperation of the synchronous pulleys 24 and the synchronous belt 23.

[0038] The implementation principle of this application embodiment is as follows: First, the device is installed in a suitable position using plate 1. Then, the drive shaft is fixed using fixing mechanism 2. The drive shaft is placed in the placement groove on the top surface of support plate 29. Then, the rotating motor 26 inside the inner groove 22 is started, causing the rotating motor 26 to drive one of the first threaded rods 28 to rotate. The first threaded rod 28 is driven by the synchronous wheel 24 on the outer surface and the synchronous belt 23, thereby driving the other first threaded rod 28 to rotate. The two first threaded rods 28 rotate together inside the support plate 29, thereby driving the positioning sleeve 27 to move, so that the positioning sleeve 27 fixes the drive shaft.

[0039] Then, the servo motor 33 is started, which drives the lead screw 31 to rotate, thereby causing the lead screw 31 to move the slider 32 in the groove, thereby causing the slider 32 to move the positioning device 3 on the top surface, and causing the fixing plate 37 in the positioning device 3 to slide on the top surface of the plate 1.

[0040] Once the positioning device 3 is moved to the appropriate position, the second threaded rods 35 on both sides can be rotated, causing the two second threaded rods 35 to rotate in the middle of the support plate 36, thereby driving the two clamping plates 34 to slide on the top surface of the fixed plate 37. At the same time, the clamping plates 34 will move relative to each other to clamp and fix the transmission shaft.

[0041] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A machining and positioning fixture for an automotive drive shaft, comprising a plate (1), characterized in that: A fixing mechanism (2) is provided on one side of the top surface of the plate (1), and a servo motor (33) is fixedly installed on the other side of the top surface of the plate (1). A lead screw (31) is fixedly installed at the output end of the servo motor (33). The lead screw (31) is rotatably installed inside the plate (1). A slider (32) is threaded on the outer surface of the lead screw (31). A positioning device (3) is fixedly installed on the top surface of the slider (32).

2. The machining and positioning fixture for an automotive drive shaft according to claim 1, characterized in that: The fixing mechanism (2) includes a mounting plate (21), a support plate (29) is fixedly mounted on the top surface of the mounting plate (21), two first threaded rods (28) are rotatably inserted in the middle of the support plate (29), a positioning sleeve (27) is threaded on the outer surface of the two first threaded rods (28), and a driving component is provided at the bottom end of the two first threaded rods (28).

3. The machining and positioning fixture for an automotive drive shaft according to claim 1, characterized in that: The positioning device (3) includes a fixing plate (37), which is fixedly installed on the top surface of the slider (32). Support plates (36) are fixedly installed on both sides of the top surface of the fixing plate (37). A second threaded rod (35) is threadedly inserted into the middle of the two support plates (36). A clamping plate (34) is rotatably installed at the opposite end of the two second threaded rods (35). The two clamping plates (34) are used in conjunction.

4. The machining and positioning fixture for an automotive drive shaft according to claim 1, characterized in that: The top surface of the plate (1) is provided with a groove, and the lead screw (31) is rotatably installed inside the groove.

5. The machining and positioning fixture for an automotive drive shaft according to claim 1, characterized in that: The positioning device (3) and the positioning sleeve (27) are distributed in parallel.

6. The machining and positioning fixture for an automotive drive shaft according to claim 2, characterized in that: The drive component includes two synchronous pulleys (24) and a rotating motor (26). The two synchronous pulleys (24) are respectively fixedly sleeved on the bottom ends of two first threaded rods (28). The outer surfaces of the two synchronous pulleys (24) are meshed with a synchronous belt (23). The output end of the rotating motor (26) is fixedly connected to one of the first threaded rods (28).

7. The machining and positioning fixture for an automotive drive shaft according to claim 2, characterized in that: The two first threaded rods (28) are arranged in parallel.

8. The machining and positioning fixture for an automotive drive shaft according to claim 6, characterized in that: The mounting plate (21) and the plate body (1) have an inner groove (22) together, and the rotating motor (26) is fixedly installed inside the inner groove (22).

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