Shot blasting device for automobile brake bracket production

Abstract

The utility model discloses a shot blasting device for producing an automobile brake bracket, which comprises a shot blasting machine main body, and two sides of the upper end surface of the shot blasting machine main body are respectively and fixedly provided with a shot blasting machine housing; the front end face of the first impeller head housing and the rear end face of the second impeller head housing counted from left to right are each fixedly provided with a stepping motor, and output shafts of the stepping motors are connected with square rotating shafts through couplings. The whole impeller is fixed by the sealing plate, when the impeller needs to be replaced, only the metal ring located on the outer surface of the sealing plate needs to be pushed inwards, the sealing plate can be unfixed, after the sealing plate is unfixed, the sealing plate is directly taken down, and the impeller can be replaced. According to the technical scheme, the impeller can be quickly and conveniently replaced, and the overall shutdown time of the shot blasting machine main body can be shortened due to the higher replacement speed, so that the working efficiency of the shot blasting machine main body is improved.

Description

Technical Field

[0001] This utility model relates to the field of shot blasting technology, specifically a shot blasting device for the production of automobile brake brackets. Background Technology

[0002] The brake bracket is an important component of the automotive braking system. Its main function is to support the brake caliper and brake disc, ensuring that the braking system can operate normally and achieve the best braking effect.

[0003] In the production of automotive brake brackets, in order to improve the quality of the automotive brake brackets and eliminate burrs on the outer surface of the brake brackets, polishing and grinding equipment such as grinding wheel devices or shot blasting devices are needed to remove oxide scale and burrs generated during casting or processing, thereby improving the surface smoothness and quality of the automotive brake brackets. Such shot blasting devices used for polishing and grinding automotive brake brackets can be referred to as shot blasting devices for automotive brake bracket production.

[0004] However, when using this shot blasting device, a high-speed rotating impeller is needed to accelerate and propel the shot, causing it to impact the surface of the automotive brake bracket at a high speed to achieve cleaning, rust removal, and deburring. However, during the process of being accelerated and ejected by the impeller, the shot generates a strong impact force on the impeller. This impact force deforms the metal structure on the impeller surface. Simultaneously, the repeated impacts of the shot gradually erode the protective oxide layer on the impeller surface, exposing the impeller substrate and further accelerating wear. Therefore, this impeller wears faster than other structures in the shot blasting device and needs to be replaced regularly. However, since this impeller is sealed inside the shot blaster housing, the overall disassembly and assembly process is cumbersome. Therefore, it does not meet current requirements. To address this, we propose a shot blasting device for automotive brake bracket production. Utility Model Content

[0005] The purpose of this invention is to provide a shot blasting device for the production of automotive brake brackets, to solve the problems mentioned in the background art. In this shot blasting device, a high-speed rotating impeller is used to accelerate and propel the shot, causing it to impact the surface of the automotive brake bracket at a high speed to achieve cleaning, rust removal, and deburring. However, during the process of the shot being accelerated and ejected by the impeller, it generates a strong impact force on the impeller. This impact force causes deformation of the metal structure on the impeller surface. Simultaneously, the repeated impact of the shot gradually erodes the protective oxide layer on the impeller surface, exposing the impeller substrate and further accelerating wear. Therefore, this impeller wears faster than other structures in the shot blasting device and needs to be replaced regularly. However, since this impeller is sealed inside the shot blaster housing, the overall disassembly and assembly process is cumbersome.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a shot blasting device for automobile brake bracket production, comprising a shot blasting machine body, wherein a shot blasting device cover is fixedly installed on both sides of the upper end face of the shot blasting machine body, and a stepper motor is fixedly installed on the front end face of the first shot blasting device cover and the rear end face of the second shot blasting device cover from left to right, wherein the output shaft of the stepper motor is connected to a square rotating shaft through a coupling, wherein an impeller located inside the shot blasting device cover is provided on the outer side of the square rotating shaft, wherein a square slot is provided on the side of the impeller facing the nearest stepper motor, and the square rotating shaft is inserted into the interior of the square slot;

[0007] From left to right, the rear end face of the first shot blasting machine cover and the front end face of the second shot blasting machine cover are both provided with a circular groove. The interior of the circular groove contains a sealing plate. Both sides of the interior of the sealing plate are provided with a fixing groove. One side of the inner wall of the fixing groove is provided with a fixing through hole extending to the outside of the sealing plate. The interior of the fixing through hole is provided with a fixing head fixed to the inner wall of the circular groove. The interior of the fixing head contains a spring groove. The interior of the spring groove contains a spring. The upper and lower ends of the spring are connected to a rectangular fixing block, and the rectangular fixing block is inserted into the interior of the fixing groove.

[0008] A metal ring is provided on one side of the two fixing grooves located inside the same sealing plate and slidably connected to the outer surface of the sealing plate. A disassembly sleeve is fixedly provided on the surface of the metal ring facing the two fixing heads. The two disassembly sleeves are respectively sleeved on the outer surface of the two fixing heads, and the surface of the rectangular fixing block facing the disassembly sleeve is an inclined surface.

[0009] Preferably, the inner wall of the square slot has a square cross-sectional shape, the outer surface of the square rotating shaft fits against the inner wall of the square slot, and the square rotating shaft and the square slot are slidably connected.

[0010] Preferably, a return spring is connected to both sides of the front end face of the first metal ring from left to right and to both sides of the rear end face of the second metal ring, and the other end of the return spring is connected to the sealing plate.

[0011] Preferably, the inner side of the return spring is provided with an anti-disengagement rod that moves laterally through the metal ring, and an anti-disengagement sleeve is fixedly sleeved on one side of the outer surface of the anti-disengagement rod, and the surface of the anti-disengagement sleeve facing the metal ring is in contact with the metal ring.

[0012] Preferably, an L-shaped fixing rod is fixedly provided on both the upper and lower end faces of the stepper motor, and the surface of the L-shaped fixing rod facing the shot blasting machine cover is fixed to the shot blasting machine cover.

[0013] Preferably, a support shaft is mounted on the middle position of the face of the sealing plate facing the nearest impeller via a roller bearing. The outer side of the support shaft is provided with a support opening located on the outer surface of the impeller, and the outer surface of the support shaft is in contact with the inner wall of the support opening.

[0014] Both sides of the outer surface of the impeller are equipped with a roller bearing ring by roller bearings, and the two roller bearing rings are respectively attached to the inner wall of the shot blasting machine cover and the sealing plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention features an impeller that is fixed inside the shot blasting machine housing by a sealing plate secured by two fixing heads. When the impeller needs to be replaced, simply push the metal ring located on the outer surface of the sealing plate inward to release the sealing plate. Once the sealing plate is released, it can be removed directly for impeller replacement. This technical solution allows for quick and convenient impeller replacement, and the faster replacement speed reduces the downtime of the shot blasting machine, thereby increasing its working efficiency. Attached Figure Description

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

[0018] Figure 2 This utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0019] Figure 3 This utility model Figure 2 Enlarged view of the structure at point B.

[0020] In the diagram: 1. Main body of the shot blasting machine; 2. Shot blaster cover; 3. Stepper motor; 4. Square rotating shaft; 5. Impeller; 6. Square slot; 7. Support port; 8. Sealing plate; 9. Support rotating shaft; 10. Circular groove; 11. Fixing head; 12. Spring groove; 13. Spring; 14. Rectangular fixing block; 15. Inclined surface; 16. Disassembly sleeve; 17. Metal ring; 18. Return spring; 19. Fixing through hole; 20. Fixing groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] The shot blasting machine body 1 (model Q372), stepper motor 3 (model DM542), and return spring 18 (model JX110) mentioned in this utility model can all be obtained from the market or through private customization.

[0023] Please see Figures 1 to 3 An embodiment of this utility model provides a shot blasting device for producing automobile brake brackets, including a shot blasting machine body 1. A shot blasting shell 2 is fixedly installed on both sides of the upper end face of the shot blasting machine body 1. A stepper motor 3 is fixedly installed on the front end face of the first shot blasting shell 2 and the rear end face of the second shot blasting shell 2 from left to right. The output shaft of the stepper motor 3 is connected to a square rotating shaft 4 through a coupling. An impeller 5 located inside the shot blasting shell 2 is provided on the outside of the square rotating shaft 4. A square slot 6 is provided on the side of the impeller 5 facing the nearest stepper motor 3, and the square rotating shaft 4 is inserted into the inside of the square slot 6.

[0024] From left to right, the rear end face of the first shot blasting machine cover 2 and the front end face of the second shot blasting machine cover 2 are both provided with a circular groove 10. The interior of the circular groove 10 contains a sealing plate 8. Both sides of the interior of the sealing plate 8 are provided with a fixing groove 20. One side of the inner wall of the fixing groove 20 is provided with a fixing through hole 19 extending to the outside of the sealing plate 8. The interior of the fixing through hole 19 is provided with a fixing head 11 fixed to the inner wall of the circular groove 10. The interior of the fixing head 11 contains a spring groove 12. The interior of the spring groove 12 contains a spring 13. The upper and lower ends of the spring 13 are connected to a rectangular fixing block 14, and the rectangular fixing block 14 is inserted into the interior of the fixing groove 20.

[0025] Two fixing grooves 20 located inside the same sealing plate 8 are provided on one side with a metal ring 17 located on the outer surface of the sealing plate 8 and slidably connected to the sealing plate 8. A disassembly sleeve 16 is fixedly provided on the surface of the metal ring 17 facing the two fixing heads 11. The two disassembly sleeves 16 are respectively sleeved on the outer surface of the two fixing heads 11, and the surface of the rectangular fixing block 14 facing the disassembly sleeve 16 is an inclined surface 15. The impeller 5 is sealed and fixed inside the shot blasting machine cover 2 by the sealing plate 8 fixed by the two fixing heads 11. When it is necessary to replace the impeller 5 located inside the shot blasting machine cover 2, the metal ring 17 located on the outer surface of the sealing plate 8 is pushed inward. As the metal ring 17 moves, the two disassembly sleeves 16 fixed to it will move inward together. As the disassembly sleeves 16 move, the disassembly sleeves 16 will move inward together. At the entrance of 6, the inclined surface 15 on the outer surface of the rectangular fixing block 14 will come into contact with the inclined surface 15. Under the action of the inclined surface 15, as the disassembly sleeve 16 goes deeper, the rectangular fixing block 14 will be pushed inward and gradually enter the interior of the fixing head 11. When the rectangular fixing block 14 completely leaves the interior of the fixing groove 20 inside the sealing plate 8 and enters the interior of the fixing head 11, the fixing of the fixing head 11 to the sealing plate 8 will also be released. After the fixing of the sealing plate 8 is released, it is taken out from the interior of the circular groove 10. Then, the impeller 5 inside the shot blasting cover 2 is taken off directly. A new impeller 5 is picked up and the square slot 6 on the new impeller 5 is aligned with the square rotating shaft 4 connected to the stepper motor 3. Then, the impeller 5 is put on the outer surface of the square rotating shaft 4 through the square slot 6.

[0026] After the new impeller 5 is fitted onto the outer surface of the square rotating shaft 4, the removed sealing plate 8 is picked up, and the two fixing through holes 19 on the outer surface of the sealing plate 8 are aligned with the two fixing heads 11. Then, the sealing plate 8 is inserted into the circular groove 10. As the sealing plate 8 goes deeper, the two fixing through holes 19 on the outer surface of the sealing plate 8 will contact the inclined surfaces 15 on the two rectangular fixing blocks 14 on the outer surfaces of the two fixing heads 11. As the sealing plate 8 goes deeper, the rectangular fixing blocks 14 will be pushed inward again and compress the spring 13. After the sealing plate 8 is fully inserted into the circular groove 10, the rectangular fixing block 14 can be pushed outward by the reaction force of the compressed spring 13, thereby locking the rectangular fixing block 14 into the fixing groove 20. When the rectangular fixing block 14 is locked into the fixing groove 20, the sealing plate 8 will be fixed in the current position. When the sealing plate 8 is fixed in the current position, the surface of the sealing plate 8 facing the impeller 5 will be in contact with the impeller 5. By the sealing plate 8 being in contact with and fixed to the impeller 5, the sealing plate 8 can be positioned and fixed in the current position.

[0027] The inner wall of the square slot 6 has a square cross-section. The outer surface of the square rotating shaft 4 is in contact with the inner wall of the square slot 6, and the square rotating shaft 4 and the square slot 6 are slidably connected. When shot blasting is required, the car brake bracket is placed inside the main body 1 of the shot blasting machine. Then, shot is added into the inside of the shot blaster housing 2. Then, the stepper motor 3 is started. The stepper motor 3 can drive the square rotating shaft 4 connected to it to rotate. Since the outer surface of the square rotating shaft 4 is in contact with the inner wall of the square slot 6 located on the outer surface of the impeller 5, when the square rotating shaft 4 rotates, the impeller 5 will rotate along with it. The rotating impeller 5 can accelerate the shot added into the inside of the shot blaster housing 2 and propel it onto the outer surface of the car brake bracket to polish it.

[0028] A return spring 18 is connected to both sides of the front end face of the first metal ring 17 and both sides of the rear end face of the second metal ring 17 from left to right, and the other end of the return spring 18 is connected to the sealing plate 8. When the metal ring 17 is pushed inward, it will squeeze the return spring 18 connected to it. After the sealing plate 8 has been removed from the inside of the circular groove 10, the metal ring 17 is released, and then the reaction force of the squeezed return spring 18 can push the metal ring 17 and the disassembly sleeve 16 fixed to it back to their original positions. Through the above technical solution, the disassembly sleeve 16 can be automatically pushed back to its original position, thereby preventing the disassembly sleeve 16, which has moved, from obstructing the fixation of the fixing head 11.

[0029] The inner side of the return spring 18 is provided with an anti-disengagement rod that moves laterally through the metal ring 17. An anti-disengagement sleeve is fixedly sleeved on one side of the outer surface of the anti-disengagement rod, and the surface of the anti-disengagement sleeve facing the metal ring 17 is in contact with the metal ring 17. The anti-disengagement rod and the anti-disengagement sleeve can prevent the return spring 18 from falling off.

[0030] An L-shaped fixing rod is fixedly provided on both the upper and lower end faces of the stepper motor 3, and the L-shaped fixing rod facing the shot blaster cover 2 is fixed to the shot blaster cover 2; the stability of the stepper motor 3 can be improved by the two L-shaped fixing rods.

[0031] A support shaft 9 is mounted on the middle position of the face of the sealing plate 8 facing the nearest impeller 5 via a roller bearing. The outer side of the support shaft 9 is provided with a support port 7 located on the outer surface of the impeller 5, and the outer surface of the support shaft 9 is in contact with the inner wall of the support port 7. During the installation of the sealing plate 8, the support shaft 9 located on the outer surface of the sealing plate 8 will be inserted into the support port 7 located on the outer surface of the impeller 5. By inserting the support shaft 9 into the support port 7, the overall stability of the impeller 5 can be increased, preventing it from tilting.

[0032] Both sides of the outer surface of the impeller 5 are equipped with a roller bearing ring by roller bearings, and the two roller bearing rings are respectively in contact with the inner wall of the shot blasting machine cover 2 and the sealing plate 8. The two roller bearing rings can prevent wear on the sealing plate 8 and the inner wall of the shot blasting machine cover 2 when the impeller 5 rotates.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A shot blasting device for producing automobile brake brackets, comprising a shot blasting machine body (1), characterized in that: Both sides of the upper end face of the shot blasting machine body (1) are fixedly installed with a shot blasting cover (2). From left to right, the front end face of the first shot blasting cover (2) and the rear end face of the second shot blasting cover (2) are fixedly installed with a stepper motor (3). The output shaft of the stepper motor (3) is connected to a square rotating shaft (4) through a coupling. An impeller (5) located inside the shot blasting cover (2) is provided on the outside of the square rotating shaft (4). The impeller (5) facing the nearest stepper motor (3) is provided with a square slot (6), and the square rotating shaft (4) is inserted into the square slot (6). From left to right, the rear end face of the first shot blasting cover (2) and the front end face of the second shot blasting cover (2) are each provided with a circular groove (10). The interior of the circular groove (10) contains a sealing plate (8). Both sides of the interior of the sealing plate (8) are provided with a fixing groove (20). One side of the inner wall of the fixing groove (20) is provided with a fixing through hole (19) extending to the outside of the sealing plate (8). The interior of the fixing through hole (19) is provided with a fixing head (11) fixed to the inner wall of the circular groove (10). The interior of the fixing head (11) contains a spring groove (12). The interior of the spring groove (12) contains a spring (13). The upper and lower ends of the spring (13) are connected to a rectangular fixing block (14), and the rectangular fixing block (14) is inserted into the interior of the fixing groove (20). A metal ring (17) is provided on one side of the two fixing grooves (20) located inside the same sealing plate (8) and slidably connected to the sealing plate (8). A disassembly sleeve (16) is fixedly provided on the surface of the metal ring (17) facing the two fixing heads (11). The two disassembly sleeves (16) are respectively sleeved on the outer surface of the two fixing heads (11), and the surface of the rectangular fixing block (14) facing the disassembly sleeve (16) is an inclined surface (15).

2. The shot blasting device for producing automotive brake brackets according to claim 1, characterized in that: The inner wall of the square slot (6) has a square cross-section. The outer surface of the square pivot (4) is in contact with the inner wall of the square slot (6), and the square pivot (4) and the square slot (6) are slidably connected.

3. The shot blasting device for producing automotive brake brackets according to claim 1, characterized in that: A return spring (18) is connected to both sides of the front end face of the first metal ring (17) and both sides of the rear end face of the second metal ring (17) from left to right, and the other end of the return spring (18) is connected to the sealing plate (8).

4. The shot blasting device for producing automotive brake brackets according to claim 3, characterized in that: The inner side of the return spring (18) is provided with an anti-disengagement rod that moves laterally through the metal ring (17). An anti-disengagement sleeve is fixedly sleeved on one side of the outer surface of the anti-disengagement rod, and the surface of the anti-disengagement sleeve facing the metal ring (17) is in contact with the metal ring (17).

5. The shot blasting device for producing automotive brake brackets according to claim 1, characterized in that: The stepper motor (3) is fixed with an L-shaped fixing rod on both the upper and lower end faces, and the L-shaped fixing rod facing the shot blaster cover (2) is fixed to the shot blaster cover (2).

6. The shot blasting device for producing automotive brake brackets according to claim 1, characterized in that: A support shaft (9) is mounted on the middle position of the face of the sealing plate (8) facing the nearest impeller (5) via a roller bearing. The outer side of the support shaft (9) is provided with a support port (7) located on the outer surface of the impeller (5), and the outer surface of the support shaft (9) is in contact with the inner wall of the support port (7). Both sides of the outer surface of the impeller (5) are equipped with a roller bearing ring by roller bearings, and the two roller bearing rings are respectively attached to the inner wall of the shot blasting machine cover (2) and the sealing plate (8).

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