Shot blasting device for automobile parts and shot blasting method thereof

Abstract

The application provides a shot blasting device for automobile parts and a shot blasting method thereof, relates to the field of automobile part processing, and comprises a rotating rod, a rotating motor arranged on the shot blasting machine, a first gear fixedly connected to the output shaft of the rotating motor, and a second gear fixedly connected to the rotating rod; a mounting disc fixedly connected to one end of the rotating rod away from the rotating motor; a mounting rod rotatably connected to the mounting disc, a rotating block fixedly connected to the mounting rod, and two sections of rotating racks arranged in series on the rotating block; a rotating rod fixedly connected to a rotating bevel gear capable of meshing with the rotating racks; a clamping mechanism for clamping the automobile parts; and a rotating mechanism arranged on the mounting disc and used for driving the mounting rod to rotate. The application can rotate the automobile parts during the processing of the automobile parts, thereby reducing the residue of the shot blasting in the automobile parts during the shot blasting treatment.

Description

Technical Field

[0001] This invention relates to the field of automotive parts processing, and more specifically to a shot blasting apparatus and shot blasting method for automotive parts. Background Technology

[0002] During the manufacturing or storage of automotive parts, oxides and potential rust often form on their surfaces. Shot blasting effectively removes these oxides and rust, providing a clean, exposed metal surface for subsequent painting or other surface treatments, ensuring coating adhesion and the overall aesthetics of the part.

[0003] Referring to publication number CN117718895A, the subject matter is a shot blasting device for surface treatment of automotive leaf springs. This device uses a filter assembly and a dust removal assembly to repeatedly treat burrs and rust in the shot blasting process.

[0004] Regarding the above technical solution, when shot blasting automotive parts, the irregularity of the parts may cause shot to be left inside. Furthermore, the rebound of the remaining shot during subsequent shot blasting can easily lead to incomplete shot blasting of the automotive parts, affecting their subsequent use. Summary of the Invention

[0005] In view of this, the present invention provides a shot blasting device and shot blasting method for automotive parts, which can rotate the automotive parts during processing to reduce the residue of shot blasting in the automotive parts during shot blasting.

[0006] In the first aspect, the shot blasting apparatus for automotive parts provided in this application adopts the following technical solution: The shot blasting device for automotive parts provided in this application adopts the following technical solution: a rotating rod rotatably connected to a shot blasting machine, the shot blasting machine being equipped with a rotating motor, a first gear being fixedly connected to the output shaft of the rotating motor, and a second gear meshing with the first gear being fixedly connected to the rotating rod; a mounting plate being fixedly connected to the end of the rotating rod away from the rotating motor; a mounting rod rotatably connected to the mounting plate, a rotating block being fixedly connected to the mounting rod, and two segments of a first rotating rack connected end to end being provided on the rotating block; multiple connecting rods being vertically arranged, each of which is rotatably connected to the mounting rod, and a rotating bevel gear capable of meshing with the first rotating rack being fixedly connected to the connecting rod; a clamping mechanism, all disposed on the connecting rod, used to clamp the automotive parts; and a rotating mechanism disposed on the mounting plate, used to drive the mounting rod to rotate.

[0007] By adopting the above technical solution, the rotating rod is connected to the shot blasting machine. Pressing the clamping mechanism secures the automotive parts to the rotating rod. Pressing the clamping mechanism again opens it, fixing the automotive parts in place. The rotating motor is then started, driving the first gear to rotate. The first gear rotates, driving the second gear to rotate, which in turn drives the rotating rod to rotate. The rotating rod drives the rotating mechanism to rotate, which in turn drives the mounting rod fixedly connected to the mounting plate to rotate. The rotating rod then drives the rotating block to rotate. The first rotating rack on the rotating block meshes with the rotating bevel gear on the connecting rod, causing the bevel gear to rotate to a certain extent. The bevel gear then drives the connecting rod to rotate, causing different surfaces of the automotive parts on the connecting rod to come into contact with the shot blasting machine for cleaning.

[0008] By rotating the automotive parts during shot blasting, the shot blasting medium can be applied evenly to all corners and surfaces of the parts, thereby improving the uniformity of the treatment and further enhancing the overall quality and performance of the automotive parts. At the same time, by rotating the components, more areas on the automotive parts come into contact with the shot blasting medium, accelerating the shot blasting process and improving work efficiency by reducing the number of repeated treatments.

[0009] Optionally, the rotating mechanism includes: a rotating disk, fixedly connected to the rotating rod and disposed on the mounting plate, the rotating disk being provided with a plurality of second rotating racks; and a third gear, rotatably connected to the mounting plate and fixedly connected to the mounting rod.

[0010] By adopting the above technical solution, the rotating motor is started, which drives the first gear to rotate. The first gear drives the second gear to rotate, and the second gear drives the rotating rod to rotate. The rotating rod drives the rotating disk to rotate. The second rotating rack on the rotating disk meshes with the third gear at intervals during rotation, and drives the third gear to rotate. The third gear located on the side of the rotating disk intermittently meshes with the second rotating rack and rotates under the drive of the second rotating rack.

[0011] Optionally, the clamping mechanism includes: a clamping rod, vertically fixed to the connecting rod, with a retaining block slidably connected inside the clamping rod, and a rotating spring fixedly connected at the connection between the retaining block and the clamping rod; a retaining baffle, rotatably connected to the clamping rod, with a sliding baffle slidably connected to the retaining baffle, and a retaining spring fixedly connected at the connection between the sliding baffle and the retaining baffle, the retaining spring being used to push the sliding baffle to move outward.

[0012] By adopting the above technical solution, pressing the sliding baffle causes it to retract into the clamping baffle, pushing the clamping block downwards, and rotating the clamping baffle causes it to push the clamping block. At this time, the clamping rod and the clamping baffle are on the same axis. The car part is placed on the clamping rod, and the clamping baffle is rotated to release the clamping baffle from pushing the clamping block. The clamping block moves upwards under the push of the rotating spring. After the clamping block moves upwards, it restricts the rotation of the clamping baffle, making the clamping baffle and the clamping rod perpendicular. Pressing the sliding baffle causes the sliding baffle in the clamping baffle to move outwards under the push of the clamping spring, so that the sliding baffle fixes the car part a second time.

[0013] By securing automotive parts with a clamping mechanism, the movement or jumping of the parts during shot blasting can be reduced, thus improving the stability and uniformity of the process. Furthermore, clamping the parts ensures they are shot blasted in a specific direction and position during rotation, while also protecting vulnerable areas. Precise clamping and localized masking effectively protect fragile parts and prevent unnecessary damage during shot blasting.

[0014] Optionally, a fixed slider is slidably connected inside the sliding baffle, and a fixed spring is provided at the connection between the fixed slider and the sliding baffle. The fixed spring is used to push the fixed slider to move downward. A fixed rod is provided at the connection between the pressing baffle and the pressing spring, and a conical lock head is slidably connected to the fixed rod.

[0015] By adopting the above technical solution, when the sliding baffle is pressed for the first time, the fixed slider in the sliding baffle is engaged with the fixed rod under the push of the fixed spring, thus fixing the sliding baffle. When the sliding baffle is pressed again, the fixed slider moves upward under the push of the conical lock head and moves out of the fixed rod, thus releasing the fixation of the sliding baffle.

[0016] Secondly, this application provides a shot blasting method for automotive parts, wherein the shot blasting method is as follows: S1. Place the car parts. When the sliding baffle is pressed for the first time, the fixed slider in the sliding baffle is engaged with the fixed rod under the push of the fixed spring, and the sliding baffle is fixed. Push the abutment block down and rotate the abutment baffle so that the abutment baffle pushes the abutment block. At this time, the fixed rod and the abutment baffle are in the same axis position. Place the car parts on the fixed rod. S2. Secure the placed car parts, rotate the abutment baffle to release the abutment baffle from pushing the abutment block, the abutment block moves upward under the push of the rotating spring, and the abutment block restricts the rotation of the abutment baffle after moving upward, so that the abutment baffle and the clamping rod are in a perpendicular state. When the sliding baffle is pressed again, the fixed slider moves upward under the push of the conical lock head and moves out of the clamping rod, releasing the fixation of the sliding baffle, and the sliding baffle clamps the car parts. S3. The rotating motor drives the mounting rod to rotate. The rotating motor is started, and the rotating motor drives the first gear to rotate. The first gear drives the second gear to rotate. The second gear drives the rotating rod to rotate. The rotating rod drives the rotating disk to rotate. The second rotating rack on the rotating disk meshes with the third gear at intervals during rotation and drives the third gear to rotate. The third gear located on the side of the rotating disk intermittently meshes with the second rotating rack and rotates under the drive of the second rotating rack. S4. The connecting rod rotates, causing the car parts to rotate. The mounting rod rotates, causing the rotating block to rotate. The first rotating rack on the rotating block meshes with the rotating bevel gear on the connecting rod, causing the rotating bevel gear to rotate to a certain extent. The rotating bevel gear causes the connecting rod to rotate, so that different surfaces of the car parts on the connecting rod come into contact with shot blasting to clean the car parts.

[0017] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0018] By rotating the automotive parts during shot blasting, the shot blasting medium can be applied as evenly as possible to all corners and surfaces of the parts, thereby improving the uniformity of the treatment and further enhancing the overall quality and performance of the automotive parts. Simultaneously, the rotation of the rotating parts allows more areas of the automotive parts to contact the shot blasting medium, accelerating the shot blasting process and increasing work efficiency by reducing the number of repetitions. The clamping mechanism secures the automotive parts, reducing movement or jumping during shot blasting, thus improving the stability and uniformity of the process. Furthermore, clamping ensures that the automotive parts receive shot blasting in a specific direction and position during rotation, while also protecting vulnerable parts. Precise clamping and localized masking effectively protect fragile parts of the automotive parts, preventing unnecessary damage during shot blasting. (See attached diagram.) Figure 1 This is a schematic diagram of the shot blasting device for automotive parts in this embodiment; Figure 2This embodiment shows a schematic diagram of the rotating mechanism; Figure 3 This embodiment shows a schematic diagram of the mounting rod structure; Figure 4 This embodiment shows a schematic diagram of the clamping mechanism; Figure 5 This embodiment shows a schematic diagram of the structure of the fixing rod; Figure 6 This is a schematic diagram illustrating the structure of the fixed slider in this embodiment.

[0019] Explanation of reference numerals in the attached drawings: 1. Rotating rod; 11. Rotating motor; 12. First gear; 13. Second gear; 2. Mounting plate; 3. Mounting rod; 31. Rotating block; 32. First rotating rack; 4. Connecting rod; 41. Rotating bevel gear; 5. Clamping mechanism; 51. Clamping rod; 52. Abutting block; 53. Rotating spring; 54. Abutting baffle; 55. Sliding baffle; 56. Abutting spring; 6. Rotating mechanism; 61. Rotating plate; 62. Second rotating rack; 63. Third gear; 7. Fixed slider; 71. Fixed spring; 72. Fixed rod; 73. Conical lock head. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of the present invention. Figures 1-6 The technical solutions of the embodiments of the present invention will be clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention are within the scope of protection of the present invention.

[0021] In the first aspect, the shot blasting apparatus for automotive parts provided in this application adopts the following technical solution: Reference Figure 1 and Figure 3This embodiment provides a shot blasting device for automotive parts, including a rotating rod 1 rotatably connected in a shot blasting machine. A rotating motor 11 is mounted on the rotating rod 1, and a first gear 12 is fixedly connected to the output shaft of the rotating motor 11. A second gear 13, meshing with the first gear 12, is fixedly connected to the rotating rod 1. A mounting plate 2 is fixedly connected to the end of the rotating rod 1 away from the rotating motor 11. A mounting rod 3 is rotatably connected below the mounting plate 2, and a rotating block 31 is fixedly connected to the mounting rod 3. The rotating block 31 is provided with two segments of a first rotating rack 32 that are not connected end-to-end. Multiple connecting rods 4 are rotatably connected to the mounting rod 3 in the vertical direction. Each connecting rod 4 is fixedly connected to a rotating bevel gear 41 that meshes with the first rotating rack 32. Each connecting rod 4 is provided with a clamping mechanism 5, which is used to clamp the automotive parts onto the connecting rod 4. A rotating mechanism 6 is provided on the mounting plate 2, which is used to drive the mounting rod 3 to rotate.

[0022] Connect the rotating rod 1 to the shot blasting machine, press the clamping mechanism 5 to clamp the car part onto the rotating rod 1, press the clamping mechanism 5 again to open it and fix the car part, start the rotating motor 11, the rotating motor 11 drives the first gear 12 to rotate, the first gear 12 drives the second gear 13 to rotate, the second gear 13 drives the rotating rod 1 to rotate, the rotating rod 1 drives the rotating mechanism 6 to rotate, the rotating mechanism 6 drives the mounting rod 3 fixedly connected to the mounting plate 2 to rotate, the mounting rod 3 drives the rotating block 31 to rotate, the first rotating rack 32 on the rotating block 31 meshes with the rotating bevel gear 41 on the connecting rod 4 and drives the rotating bevel gear 41 to rotate to a certain extent, the rotating bevel gear 41 drives the connecting rod 4 to rotate, so that different surfaces of the car part on the connecting rod 4 come into contact with the shot blasting, and the car part is cleaned.

[0023] By rotating the automotive parts during shot blasting, the shot blasting medium can be applied evenly to all corners and surfaces of the parts, thereby improving the uniformity of the treatment and further enhancing the overall quality and performance of the automotive parts. At the same time, by rotating the components, more areas on the automotive parts come into contact with the shot blasting medium, accelerating the shot blasting process and improving work efficiency by reducing the number of repeated treatments.

[0024] Reference Figure 2 The rotating mechanism 6 includes a rotating disk 61 fixedly connected to the rotating rod 1, and the rotating disk 61 is mounted on the mounting plate 2. The rotating disk 61 is provided with a plurality of second rotating racks 62, and the second rotating racks 62 are not connected end to end. A third gear 63 is rotatably connected to the mounting plate 2, and the third gear 63 is fixedly connected to the mounting rod 3.

[0025] Start the rotating motor 11, which drives the first gear 12 to rotate. The first gear 12 drives the second gear 13 to rotate, and the second gear 13 drives the rotating rod 1 to rotate. The rotating rod 1 drives the rotating disk 61 to rotate. The second rotating rack 62 on the rotating disk 61 meshes with the third gear 63 at intervals during rotation, and drives the third gear 63 to rotate. The third gear 63, located on the side of the rotating disk 61, intermittently meshes with the second rotating rack 62 and rotates under the drive of the first rotating rack 32.

[0026] Reference Figure 4 and Figure 5 The clamping mechanism 5 includes a clamping rod 51 vertically fixed to the connecting rod 4. A retaining block 52 is slidably connected inside the clamping rod 51. A rotating spring 53 is fixedly connected at the connection point between the retaining block 52 and the mounting rod 3. A retaining baffle 54 is rotatably connected to the clamping rod 51, and a sliding baffle 55 is slidably connected to the retaining baffle 54. A retaining spring 56 is fixedly connected at the connection point between the sliding baffle 55 and the retaining baffle 54, and the retaining spring 56 is used to push the sliding baffle 55 outward.

[0027] Press the sliding baffle 55 to retract it into the clamping baffle 54, push the clamping block 52 downward, and rotate the clamping baffle 54 to push the clamping block 52. At this time, the clamping rod 51 and the clamping baffle 54 are on the same axis. Place the car part on the clamping rod 51, rotate the clamping baffle 54 to release the clamping baffle 54 from pushing the clamping block 52. The clamping block 52 moves upward under the push of the rotating spring 53. After the clamping block 52 moves upward, it restricts the rotation of the clamping baffle 54, so that the clamping baffle 54 and the clamping rod 51 are in a perpendicular state. Press the sliding baffle 55 to move the sliding baffle 55 in the clamping baffle 54 outward under the push of the clamping spring 56, so that the sliding baffle 55 fixes the car part a second time.

[0028] By fixing the automotive parts with the clamping mechanism 5, on the one hand, the movement or jumping of the automotive parts during shot blasting can be reduced, thereby improving the stability and uniformity of the shot blasting process; on the other hand, by clamping the automotive parts, the automotive parts can be shot blasted in a specific direction and position during rotation, while protecting some of the more vulnerable parts of the automotive parts. Through precise clamping and local masking, the vulnerable parts of the automotive parts can be effectively protected, avoiding unnecessary damage caused during the shot blasting process.

[0029] Reference Figure 5 and Figure 6A fixed slider 7 is slidably connected inside the sliding baffle 55. A fixed spring 71 is provided at the connection between the fixed slider 7 and the sliding baffle 55. The fixed spring 71 is used to push the fixed slider 7 to move downward. A fixed rod 72 is provided at the connection between the pressing baffle 54 and the pressing spring 56. A conical lock head 73 is slidably connected on the fixed rod 72.

[0030] When the sliding baffle 55 is pressed for the first time, the fixed slider 7 in the sliding baffle 55 is engaged with the fixed rod 72 under the push of the fixed spring 71, thus fixing the sliding baffle 55. When the sliding baffle 55 is pressed again, the fixed slider 7 moves upward under the push of the conical lock head 73 and moves out of the fixed rod 72, thus releasing the fixation of the sliding baffle 55.

[0031] The implementation principle of the shot blasting device for automotive parts in this embodiment is as follows: When the sliding baffle 55 is pressed for the first time, the fixed slider 7 in the sliding baffle 55 is engaged with the fixed rod 72 under the push of the fixed spring 71, thus fixing the sliding baffle 55. The pressing block 52 is pushed down and the pressing baffle 54 is rotated, so that the pressing baffle 54 pushes the pressing block 52. At this time, the fixed rod 72 and the pressing baffle 54 are in the same axial position, and the car parts are placed on the fixed rod 72.

[0032] Rotate the abutment baffle 54 to release the push of the abutment baffle 54 on the abutment block 52. The abutment block 52 moves upward under the push of the rotating spring 53. After the abutment block 52 moves upward, it restricts the rotation of the abutment baffle 54, so that the abutment baffle 54 and the clamping rod 51 are in a perpendicular state. When the sliding baffle 55 is pressed again, the fixed slider 7 moves upward under the push of the conical lock head 73 and moves out of the clamping rod 51, releasing the fixation of the sliding baffle 55. The sliding baffle 55 clamps the car parts.

[0033] Start the rotating motor 11, which drives the first gear 12 to rotate. The first gear 12 drives the second gear 13 to rotate, and the second gear 13 drives the rotating rod 1 to rotate. The rotation of the rotating rod 1 drives the rotating disk 61 to rotate. The second rotating rack 62 on the rotating disk 61 meshes with the third gear 63 at intervals during rotation, and drives the third gear 63 to rotate. The third gear 63, located on the side of the rotating disk 61, intermittently meshes with the second rotating rack 62 and rotates under the drive of the second rotating rack 62.

[0034] The connecting rod 4 rotates, causing the car parts to rotate. The mounting rod 3 rotates, causing the rotating block 31 to rotate. The first rotating rack 32 on the rotating block 31 meshes with the rotating bevel gear 41 on the connecting rod 4, causing the rotating bevel gear 41 to rotate to a certain extent. The rotating bevel gear 41 causes the connecting rod 4 to rotate, so that different surfaces of the car parts on the connecting rod 4 come into contact with shot blasting to clean the car parts.

[0035] Secondly, this application provides a shot blasting method for automotive parts, wherein the shot blasting method is as follows: S1. Place the car parts. When the sliding baffle 55 is pressed for the first time, the fixed slider 7 in the sliding baffle 55 is engaged with the fixed rod 72 under the push of the fixed spring 71, and the sliding baffle 55 is fixed. Push the pressing block 52 down and rotate the pressing baffle 54 so that the pressing baffle 54 pushes the pressing block 52. At this time, the fixed rod 72 and the pressing baffle 54 are in the same axis position. Place the car parts on the fixed rod 72. S2. Fix the placed car parts, rotate the clamping baffle 54 to release the clamping baffle 54 from pushing the clamping block 52. The clamping block 52 moves upward under the push of the rotating spring 53. After the clamping block 52 moves upward, it restricts the rotation of the clamping baffle 54, so that the clamping baffle 54 and the clamping rod 51 are in a perpendicular state. When the sliding baffle 55 is pressed again, the fixed slider 7 moves upward under the push of the conical lock head 73 and moves out of the clamping rod 51, releasing the fixation of the sliding baffle 55. The sliding baffle 55 clamps the car parts. S3. The rotating motor 11 drives the mounting rod 3 to rotate. The rotating motor 11 is started, and the rotating motor 11 drives the first gear 12 to rotate. The first gear 12 drives the second gear 13 to rotate. The second gear 13 drives the rotating rod 1 to rotate. The rotating rod 1 drives the rotating disk 61 to rotate. The second rotating rack 62 on the rotating disk 61 meshes with the third gear 63 at intervals during rotation and drives the third gear 63 to rotate. The third gear 63 located on the side of the rotating disk 61 intermittently meshes with the second rotating rack 62 and rotates under the drive of the second rotating rack 62. S4. The connecting rod 4 rotates, causing the car parts to rotate. The mounting rod 3 rotates, causing the rotating block 31 to rotate. The first rotating rack 32 on the rotating block 31 meshes with the rotating bevel gear 41 on the connecting rod 4, causing the rotating bevel gear 41 to rotate to a certain extent. The rotating bevel gear 41 causes the connecting rod 4 to rotate, so that different surfaces of the car parts on the connecting rod 4 come into contact with shot blasting to clean the car parts.

[0036] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A shot blasting apparatus for automotive parts, characterized in that, include: A rotating rod is rotatably connected in a shot blasting machine. The shot blasting machine is equipped with a rotating motor. A first gear is fixedly connected to the output shaft of the rotating motor, and a second gear that meshes with the first gear is fixedly connected to the rotating rod. The mounting plate is fixedly connected to the end of the rotating rod away from the rotating motor. The mounting rod is rotatably connected to the mounting plate. A rotating block is fixedly connected to the mounting rod. The rotating block is equipped with two sections of first rotating racks that are not connected end to end. Multiple connecting rods are vertically arranged, and all connecting rods are rotatably connected to the mounting rod. A rotating bevel gear that can mesh with the first rotating rack is fixedly connected to the connecting rod. The clamping mechanisms are all mounted on the connecting rods and are used to clamp automotive parts. A rotating mechanism is mounted on the mounting plate and is used to drive the mounting rod to rotate. The clamping mechanism includes: a clamping rod, fixed on the connecting rod, with a pressing block slidably connected inside the clamping rod, and a rotating spring fixedly connected at the connection between the pressing block and the clamping rod; A retaining baffle is rotatably connected to a clamping rod. A sliding baffle is slidably connected to the retaining baffle. A retaining spring is fixedly connected at the connection between the sliding baffle and the retaining baffle. The retaining spring is used to push the sliding baffle to move outward. The sliding baffle has a fixed slider inside, and a fixed spring is provided at the connection between the fixed slider and the sliding baffle. The fixed spring is used to push the fixed slider to move downward. A fixed rod is provided at the connection between the baffle and the spring, and a conical lock head is slidably connected to the fixed rod. When the sliding baffle is pressed for the first time, the fixed slider in the sliding baffle is engaged with the fixed rod by the push of the fixed spring, thus fixing the sliding baffle. When the sliding baffle is pressed again, the fixed slider moves upward by the push of the conical lock head and moves out of the fixed rod, releasing the fixation of the sliding baffle.

2. The shot blasting apparatus for automotive parts according to claim 1, characterized in that, The rotating mechanism includes: A rotating disk is fixedly connected to a rotating rod and is mounted on a mounting plate. The rotating disk is provided with multiple second rotating racks. The third gear is rotatably connected to the mounting plate and is fixedly connected to the mounting rod. The third gear can mesh with the second rotating rack.

3. A shot blasting method for automotive parts, applied to the shot blasting apparatus for automotive parts as described in claim 2, wherein the shot blasting method comprises: S1. Place the car parts. When the sliding baffle is pressed for the first time, the fixed slider in the sliding baffle is engaged with the fixed rod under the push of the fixed spring, and the sliding baffle is fixed. Push the abutment block down and rotate the abutment baffle so that the abutment baffle pushes the abutment block. At this time, the fixed rod and the abutment baffle are in the same axis position. Place the car parts on the fixed rod. S2. Secure the placed car parts, rotate the abutment baffle to release the abutment baffle from pushing the abutment block, the abutment block moves upward under the push of the rotating spring, and the abutment block restricts the rotation of the abutment baffle after moving upward, so that the abutment baffle and the clamping rod are in a perpendicular state. When the sliding baffle is pressed again, the fixed slider moves upward under the push of the conical lock head and moves out of the clamping rod, releasing the fixation of the sliding baffle, and the sliding baffle clamps the car parts. S3. The rotating motor drives the mounting rod to rotate. The rotating motor is started, and the rotating motor drives the first gear to rotate. The first gear drives the second gear to rotate. The second gear drives the rotating rod to rotate. The rotating rod drives the rotating disk to rotate. The second rotating rack on the rotating disk meshes with the third gear at intervals during rotation and drives the third gear to rotate. The third gear located on the side of the rotating disk intermittently meshes with the second rotating rack and rotates under the drive of the second rotating rack. S4. The connecting rod rotates, causing the car parts to rotate. The mounting rod rotates, causing the rotating block to rotate. The first rotating rack on the rotating block meshes with the rotating bevel gear on the connecting rod, causing the rotating bevel gear to rotate to a certain extent. The rotating bevel gear causes the connecting rod to rotate, so that different surfaces of the car parts on the connecting rod come into contact with shot blasting to clean the car parts.

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