Positioning clamp for machining automobile brake drum

Abstract

The utility model relates to the technical field of brake drums, in particular to a positioning fixture for processing an automobile brake drum, which comprises a mounting box, a first motor arranged inside the mounting box, a lower connecting cylinder arranged at the top of the first motor, an upper connecting cylinder arranged at the top of the lower connecting cylinder, and a lifting plate arranged at the top of the upper connecting cylinder. A positioning rod is arranged at the bottom of the lifting plate, and a positioning cylinder is arranged on the outer side of the positioning rod. According to the positioning clamp for automobile brake drum machining, the effect of controlling a lifting plate to slide up and down is achieved through cooperative use of a first motor, an upper connecting cylinder and a lower connecting cylinder, the limiting effect is achieved through cooperative use of a positioning rod and a positioning cylinder, and the effect of driving a push plate to move is achieved through a second motor, a first threaded rod and a first threaded sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of brake drums, in particular to a positioning fixture for machining automobile brake drums. Background Technique

[0002] A brake is a component in a braking system used to generate a braking force that hinders the movement or tendency of a vehicle to move. Except for various retarders, almost all automobile brakes are friction brakes that generate braking torque by the friction between the working surfaces of fixed elements and rotating elements. Currently, the friction brakes widely used in various automobiles can be divided into two categories: drum brakes and disc brakes according to the different rotating elements. The difference between them is that the rotating element in the friction pair of a drum brake is a brake drum, with its cylindrical inner surface as the working surface; the rotating element in the friction pair of a disc brake is a disc-shaped brake disc, with its two end faces as the working surface.

[0003] Currently, the existing positioning fixture for machining brake drums cannot quickly unload the workpiece after machining, resulting in low work efficiency. Moreover, the existing fixing device has no buffer structure and is prone to scratching the outer surface of the brake drum, resulting in the inability to guarantee the work quality. Therefore, there is an urgent need for a positioning fixture for machining automobile brake drums to improve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model aims to solve at least one of the technical defects.

[0005] Therefore, an object of the utility model is to provide a positioning fixture for machining automobile brake drums to solve the problems mentioned in the background technique and overcome the deficiencies in the existing technology.

[0006] To achieve the above object, an embodiment of one aspect of the utility model provides a positioning fixture for machining automobile brake drums, including an installation box. A first motor is arranged inside the installation box. A lower connecting cylinder is arranged on the top of the first motor. An upper connecting cylinder is arranged on the top of the lower connecting cylinder. A lifting plate is arranged on the top of the upper connecting cylinder. A positioning rod is arranged at the bottom of the lifting plate. A positioning cylinder is arranged on the outer side of the positioning rod. A cavity is formed inside the installation box. A discharging device is arranged inside the cavity. A limiting box is arranged on the top of the discharging device. A fixing device is arranged inside the limiting box.

[0007] The utility model is further arranged as follows: The first motor is fixedly connected to the inside of the installation box. The upper connecting cylinder is adapted to the lower connecting cylinder. The positioning rod is slidably connected to the inside of the positioning cylinder. The lifting plate is slidably connected to the inside of the installation box.

[0008] By adopting the above technical solution, the positioning rod is slidably connected to the inside of the positioning cylinder, playing a role in limiting.

[0009] The present utility model is further configured as follows: The discharging device includes a second motor and a limiting shaft. A transmission shaft is provided on the output shaft of the second motor. A transmission belt is provided on the outer side of the transmission shaft. A first threaded rod is provided inside the transmission belt. A first threaded sleeve is provided on the outer side of the first threaded rod. A push plate is provided on one side of the first threaded sleeve. An arc-shaped plate is provided on one side of the push plate.

[0010] By adopting the above technical solution, a transmission shaft is provided on the output shaft of the second motor, which plays a role in transmission.

[0011] The present utility model is further configured as follows: The second motor and the limiting shaft are both fixedly connected inside the installation box. The transmission shaft is rotatably connected inside the installation box. The first threaded rod is rotatably connected inside the transmission belt. The first threaded rod is adapted to the first threaded sleeve.

[0012] By adopting the above technical solution, the first threaded rod is adapted to the first threaded sleeve, which plays a role in driving the push plate to move.

[0013] The present utility model is further configured as follows: The fixing device includes a connecting rod. Limiting rings are provided on both sides of the connecting rod. A rotating shaft is provided inside the limiting ring. A sliding cylinder is provided on one side of the rotating shaft. A support spring is provided inside the sliding cylinder. A sliding rod is provided at one end of the support spring. A connecting frame is provided at one end of the sliding rod. A connecting member is provided inside the connecting frame. A push rod is provided on one side of the connecting member. An installation shaft is provided inside the push rod.

[0014] By adopting the above technical solution, a sliding cylinder is provided on one side of the rotating shaft, which plays a role in facilitating the rotation of the sliding cylinder.

[0015] The present utility model is further configured as follows: A tension spring is provided inside the push rod. A rubber plate is provided on one side of the tension spring. The rubber plate is rotatably connected inside the push rod. One end of the tension spring is fixedly connected to one side of the rubber plate.

[0016] By adopting the above technical solution, a rubber plate is provided on one side of the tension spring, which plays a role in preventing the rubber plate from rotating randomly.

[0017] The present utility model is further configured as follows: A second threaded sleeve is provided at the bottom of the connecting rod. A second threaded rod is provided inside the second threaded sleeve. A third motor is provided at one end of the second threaded rod. A motor bracket is provided on one side of the third motor. The second threaded sleeve is fixedly connected to the bottom of the connecting rod.

[0018] By adopting the above technical solution, a second threaded rod is provided inside the second threaded sleeve, which plays a role in driving the connecting rod to move.

[0019] In summary, the beneficial technical effects of the present utility model are as follows:

[0020] The positioning fixture for automobile brake drum processing controls the up-and-down sliding of the lifting plate through the combined use of the first motor, the upper connecting cylinder and the lower connecting cylinder, plays a limiting role through the combined use of the positioning rod and the positioning cylinder, drives the push plate to move through the second motor, the first threaded rod and the first threaded sleeve, and plays a role in pushing the brake drum to move through the combined use of the push plate and the arc-shaped plate. By using the above structure, the unloading of the brake drum can be quickly completed, thereby improving work efficiency;

[0021] The positioning fixture for automobile brake drum processing drives the connecting rod to move through the combined use of the third motor, the second threaded rod and the second threaded sleeve, plays a role in clamping the brake drum through the combined use of the connecting rod, the push rod and the rubber plate, plays a role in facilitating buffering through the combined use of the sliding cylinder, the sliding rod and the supporting spring, and plays a role in facilitating the rubber plate to fit the brake drum by adding a tension spring. By using the above structure, damage to the brake drum during processing can be effectively avoided.

[0022] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

[0024] Figure 1 is a schematic structural diagram of the present utility model;

[0025] Figure 2 is a schematic structural diagram of the interior of the installation box of the present utility model;

[0026] Figure 3 is a schematic structural diagram of the unloading device of the present utility model;

[0027] Figure 4 is a schematic structural diagram of the fixing device of the present utility model.

[0028] In the figure: 1, mounting box; 2, first motor; 3, lower connecting cylinder; 4, upper connecting cylinder; 5, lifting plate; 6, positioning rod; 7, positioning cylinder; 8, cavity; 9, unloading device; 10, limiting box; 11, fixing device; 12, second motor; 13, limiting shaft; 14, transmission shaft; 15, transmission belt; 16, first threaded rod; 17, first threaded sleeve; 18, pushing plate; 19, arc-shaped plate; 20, connecting rod; 21, limiting ring; 22, rotating shaft; 23, sliding cylinder; 24, supporting spring; 25, sliding rod; 26, connecting frame; 27, connecting piece; 28, push rod; 29, mounting shaft; 30, tension spring; 31, rubber plate; 32, second threaded sleeve; 33, second threaded rod; 34, third motor; 35, motor bracket. Detailed implementation manners

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention. Embodiment

[0030] Refer to Figure 1 And Figure 2 For a positioning fixture for automobile brake drum processing disclosed in the present invention, it includes a mounting box 1. A first motor 2 is arranged inside the mounting box 1. A lower connecting cylinder 3 is arranged on the top of the first motor 2. An upper connecting cylinder 4 is arranged on the top of the lower connecting cylinder 3. A lifting plate 5 is arranged on the top of the upper connecting cylinder 4. A positioning rod 6 is arranged at the bottom of the lifting plate 5. A positioning cylinder 7 is arranged on the outer side of the positioning rod 6. A cavity 8 is opened inside the mounting box 1. An unloading device 9 is arranged inside the cavity 8. A limiting box 10 is arranged on the top of the unloading device 9. A fixing device 11 is arranged inside the limiting box 10. In this embodiment, the first motor 2 functions to drive the lower connecting cylinder 3 to rotate. The lower connecting cylinder 3 and the upper connecting cylinder 4 function to control the up and down sliding of the lifting plate 5. The lifting plate 5 functions to place the brake drum.

[0031] Refer to Figure 1 And Figure 2 The first motor 2 is fixedly connected inside the mounting box 1. The upper connecting cylinder 4 is adapted to the lower connecting cylinder 3. The positioning rod 6 is slidably connected to the inside of the positioning cylinder 7. The lifting plate 5 is slidably connected to the inside of the mounting box 1. In this embodiment, the positioning rod 6 functions to prevent the lifting plate 5 from rotating. The positioning cylinder 7 functions to facilitate the sliding of the positioning rod 6.

[0032] Refer to Figure 3, the unloading device 9 includes a second motor 12 and a limiting shaft 13. A transmission shaft 14 is provided on the output shaft of the second motor 12. A transmission belt 15 is provided on the outside of the transmission shaft 14. A first threaded rod 16 is provided inside the transmission belt 15. A first threaded sleeve 17 is provided on the outside of the first threaded rod 16. A push plate 18 is provided on one side of the first threaded sleeve 17. An arc-shaped plate 19 is provided on one side of the push plate 18. In this embodiment, the second motor 12 functions to drive the transmission shaft 14 to rotate, the transmission belt 15 functions to transmit power, and the limiting shaft 13 functions to limit the transmission belt 15.

[0033] Referring to Figure 3 , both the second motor 12 and the limiting shaft 13 are fixedly connected to the inside of the installation box 1. The transmission shaft 14 is rotatably connected to the inside of the installation box 1. The first threaded rod 16 is rotatably connected to the inside of the transmission belt 15. The first threaded rod 16 is adapted to the first threaded sleeve 17. In this embodiment, the transmission shaft 14 functions to transmit power, and the first threaded rod 16 functions to drive the push plate 18 to move.

[0034] Referring to Figure 4 , the fixing device 11 includes a connecting rod 20. Limiting rings 21 are provided on both sides of the connecting rod 20. A rotating shaft 22 is provided inside the limiting rings 21. A sliding cylinder 23 is provided on one side of the rotating shaft 22. A support spring 24 is provided inside the sliding cylinder 23. A sliding rod 25 is provided at one end of the support spring 24. A connecting frame 26 is provided at one end of the sliding rod 25. A connecting member 27 is provided inside the connecting frame 26. A push rod 28 is provided on one side of the connecting member 27. An installation shaft 29 is provided inside the push rod 28. In this embodiment, the limiting plate 21 functions to limit, the rotating shaft 22 functions to facilitate the rotation of the sliding cylinder 23, and the connecting frame 26 functions to facilitate the rotation of the sliding rod 25.

[0035] Referring to Figure 4 , a tension spring 30 is provided inside the push rod 28. A rubber plate 31 is provided on one side of the tension spring 30. The rubber plate 31 is rotatably connected to the inside of the push rod 28. One end of the tension spring 30 is fixedly connected to one side of the rubber plate 31. In this embodiment, the tension spring 30 functions to facilitate the reset of the rubber plate 31, and the rubber plate 31 functions to protect the brake drum.

[0036] Referring to Figure 4 , a second threaded sleeve 32 is provided at the bottom of the connecting rod 20. A second threaded rod 33 is provided inside the second threaded sleeve 32. A third motor 34 is provided at one end of the second threaded rod 33. A motor bracket 35 is provided on one side of the third motor 34. The second threaded sleeve 32 is fixedly connected to the bottom of the connecting rod 20. In this embodiment, the third motor 34 functions to drive the second threaded rod 33 to rotate, and the second thread 33 functions to push the connecting rod 20 to move.

[0037] The implementation principle of this embodiment is as follows:

[0038] When it is necessary to fix the brake drum, the third motor 34 starts to work and drives the second threaded rod 33 to rotate. By using the cooperation of the second threaded rod 33 and the second threaded sleeve 32, the connecting rod 20 is pushed to move. The connecting rod 20 pushes the push rod 28 and the rubber plate 31 to move. When the rubber plate 31 fits the brake drum, it will rotate to better fit the brake drum. When the rubber plate 31 rotates, it will pull the tension spring 30, causing the tension spring 30 to generate a corresponding pulling force to prevent the rubber plate 31 from moving randomly. When the rubber plate 31 contacts the brake drum, the sliding rod 25 will slide inside the sliding cylinder 23, and the support spring 24 will be compressed to play a buffering role. At the same time, the rotating shaft 22 rotates inside the limiting ring 21 to facilitate the rotation of the sliding cylinder 23. The connecting frame 26 rotates outside the connecting piece 27 to facilitate the rotation of the sliding rod 25. At the same time, the push rod 28 rotates inside the connecting rod 20 to complete the fixation of the brake drum;

[0039] When it is necessary to unload the brake drum after processing, the first motor 2 drives the lower connecting cylinder 3 to rotate. At the same time, the upper connecting cylinder 4 will move downward, so that the upper connecting cylinder 4 and the lower connecting cylinder 3 are spliced into a complete cylinder. When the upper connecting cylinder 4 moves downward, it will drive the lifting plate 5 and the positioning rod 6 to move downward. The positioning rod 6 slides inside the positioning cylinder 7 to play a limiting role. After the lifting plate descends to a specified height, the second motor 12 starts to work and drives the first threaded rod 16 to rotate. By using the cooperation of the first threaded rod 16 and the first threaded sleeve 17, the transmission shaft 14 and the transmission belt 15 are driven to move. By using the transmission belt 15 to drive the first threaded rod 16 to rotate, and by using the cooperation of the first threaded rod 16 and the first threaded sleeve 17, the push plate 18 and the arc plate 19 are driven to move to complete the unloading of the brake drum.

[0040] Compared with the prior art, the utility model has the following beneficial effects compared with the prior art:

[0041] Through the combined use of the first motor 2, the upper connecting cylinder 4 and the lower connecting cylinder 3, it plays a role in controlling the up and down sliding of the lifting plate 5. Through the combined use of the positioning rod 6 and the positioning cylinder 7, it plays a role in limiting the position. Through the second motor 12, the first threaded rod 16 and the first threaded sleeve 17, it plays a role in driving the moving plate 18 to move. Through the combined use of the moving plate 18 and the arc-shaped plate 19, it plays a role in pushing the brake drum to move. By using the above structure, the unloading of the brake drum can be completed quickly, thereby improving work efficiency. Through the combined use of the third motor 34, the second threaded rod 33 and the second threaded sleeve 32, it plays a role in driving the connecting rod 20 to move. Through the combined use of the connecting rod 20, the push rod 28 and the rubber plate 31, it plays a role in clamping the brake drum. Through the combined use of the sliding cylinder 23, the sliding rod 25 and the support spring 24, it plays a role in facilitating buffering. By adding the tension spring 30, it plays a role in facilitating the rubber plate 31 to fit the brake drum. By using the above structure, the damage to the brake drum can be effectively avoided.

[0042] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A positioning fixture for machining automotive brake drums, characterized in that: It includes an installation box (1), inside which there is a first motor (2). At the top of the first motor (2) there is a lower connecting cylinder (3). At the top of the lower connecting cylinder (3) there is an upper connecting cylinder (4). At the top of the upper connecting cylinder (4) there is a lifting plate (5). At the bottom of the lifting plate (5) there is a positioning rod (6). Outside the positioning rod (6) there is a positioning cylinder (7). Inside the installation box (1) there is a cavity (8). Inside the cavity (8) there is a discharging device (9). At the top of the discharging device (9) there is a limit box (10). Inside the limit box (10) there is a fixing device (11).

2. The positioning fixture for machining an automotive brake drum according to claim 1, wherein: The first motor (2) is fixedly connected inside the installation box (1). The upper connecting cylinder (4) is adapted to the lower connecting cylinder (3). The positioning rod (6) is slidably connected inside the positioning cylinder (7). The lifting plate (5) is slidably connected inside the installation box (1).

3. A positioning fixture for machining an automotive brake drum according to claim 1, characterized in that: The discharging device (9) includes a second motor (12) and a limit shaft (13). On the output shaft of the second motor (12) there is a transmission shaft (14). Outside the transmission shaft (14) there is a transmission belt (15). Inside the transmission belt (15) there is a first threaded rod (16). Outside the first threaded rod (16) there is a first threaded sleeve (17). On one side of the first threaded sleeve (17) there is a pushing plate (18). On one side of the pushing plate (18) there is an arc-shaped plate (19).

4. A positioning fixture for machining an automotive brake drum according to claim 3, characterized in that: Both the second motor (12) and the limit shaft (13) are fixedly connected inside the installation box (1). The transmission shaft (14) is rotatably connected inside the installation box (1). The first threaded rod (16) is rotatably connected inside the transmission belt (15). The first threaded rod (16) is adapted to the first threaded sleeve (17).

5. The positioning fixture for machining an automotive brake drum according to claim 1, characterized in that: The fixing device (11) includes a connecting rod (20). On both sides of the connecting rod (20) there are limit rings (21). Inside the limit rings (21) there is a rotating shaft (22). On one side of the rotating shaft (22) there is a sliding cylinder (23). Inside the sliding cylinder (23) there is a support spring (24). At one end of the support spring (24) there is a sliding rod (25). At one end of the sliding rod (25) there is a connecting frame (26). Inside the connecting frame (26) there is a connecting piece (27). On one side of the connecting piece (27) there is a push rod (28). Inside the push rod (28) there is a mounting shaft (29).

6. The positioning fixture for machining an automotive brake drum according to claim 5, wherein: Inside the push rod (28) there is a tension spring (30). On one side of the tension spring (30) there is a rubber plate (31). The rubber plate (31) is rotatably connected inside the push rod (28). One end of the tension spring (30) is fixedly connected to one side of the rubber plate (31).

7. A positioning fixture for machining an automotive brake drum according to claim 5, characterized in that: A second threaded sleeve (32) is provided at the bottom of the connecting rod (20). A second threaded rod (33) is provided inside the second threaded sleeve (32). One end of the second threaded rod (33) is provided with a third motor (34). A motor bracket (35) is provided on one side of the third motor (34). The second threaded sleeve (32) is fixedly connected to the bottom of the connecting rod (20).

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