A shot blasting machine for automobile swing arm liquid die forging
By designing a shot blasting machine that can disassemble and clean components, the problem of difficulty in replacing damaged protective mesh covers has been solved, improving production efficiency and equipment safety, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JIAOTONG (WEIFANG) NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-05
AI Technical Summary
The protective mesh covers of existing shot blasting machines are prone to damage during long-term use, and the traditional fixing method makes replacement difficult, affecting production efficiency and posing safety hazards.
A shot blasting machine with a disassembly assembly was designed. Through the cooperation of sliding columns, elastic components and limiting plates, the protective mesh cover can be quickly disassembled and replaced. It is also equipped with a cleaning assembly to remove debris and improve the service life of the equipment.
It enables quick replacement of protective mesh covers, improves production efficiency, reduces safety hazards, and extends equipment lifespan through cleaning components.
Smart Images

Figure CN224322957U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid forging technology, and in particular to a shot blasting machine for liquid forging of automotive swing arms. Background Technology
[0002] As a key component of the vehicle suspension system, the automotive control arm has extremely high requirements for strength and durability in its manufacturing process. Liquid forging technology is widely used in the production of automotive control arms because it can achieve dense forming of metal materials. However, the surface of the workpiece after liquid forging often has defects such as oxide scale and burrs, which need to be treated by shot blasting. Shot blasting machines can effectively remove impurities and improve surface hardness by impacting the workpiece surface with high-speed shot. However, in actual production, the protective screen of the shot blasting machine is easily damaged by long-term impact from the shot. The protective screen of traditional shot blasting machines is mostly a fixed design, which is difficult to disassemble and replace. This not only affects production efficiency, but also causes equipment failure or safety hazards due to the failure of the protective function.
[0003] Existing shot blasting machines typically consist of main components such as a shot blaster, separator, dust collection system, and housing. Their working principle involves the shot blaster propelling steel shot at high speed onto the workpiece surface, using the impact force to remove impurities and strengthen the surface. The housing usually contains a protective mesh cover to block flying shot and debris, preventing damage to the equipment's internal walls or injury to operators from rebound. The protective mesh cover is usually fixed inside the housing by bolts or welding and reinforced with ribs to enhance its impact resistance.
[0004] The protective covers of existing shot blasting machines are prone to wear or breakage due to shot impact during long-term use, requiring regular replacement. However, traditional protective covers are fixed by bolts or welding, and disassembly requires special tools or even cutting operations, which is cumbersome and time-consuming. Especially in the production of precision components such as automotive swing arms, frequent downtime for protective cover replacement will seriously affect production efficiency. More seriously, if the protective cover is not replaced in time after damage, high-speed shot will penetrate the damaged area, damage the inner wall of the housing, or be ejected into the external environment, threatening the safety of operators. To address these issues, a shot blasting machine for liquid die forging of automotive swing arms is proposed. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a shot blasting machine for liquid forging of automotive swing arms, aiming to improve the problem in the prior art that the protective cover cannot be removed and replaced when it is damaged.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a shot blasting machine for liquid forging of automotive swing arms, comprising a shot blasting machine housing, a cylinder fixedly connected to the top of the shot blasting machine housing, a jet wheel fixedly connected to the output end of the cylinder, a roller assembly inside the shot blasting machine housing, a sliding frame slidably connected inside the shot blasting machine housing, a protective mesh cover inside the sliding frame, a fixed frame fixedly connected to the outer wall of the shot blasting machine housing, a limit plate slidably connected to the top of the shot blasting machine housing, and a disassembly assembly inside the limit plate;
[0007] The disassembly assembly includes a hollow column and a sliding column. The outer wall of the hollow column is fixedly connected to the inside of the limiting plate, and the sliding column is slidably connected to the inside of the hollow column. An elastic component is provided on the outer wall of the sliding column. A sliding disc is fixedly connected to the bottom of the sliding column, and a trapezoidal column is fixedly connected to the bottom of the sliding disc. An elliptical ball is slidably connected inside the hollow column, and a cleaning component is provided inside the shot blasting machine housing.
[0008] As a further description of the above technical solution:
[0009] The roller assembly includes a roller, which is rotatably connected inside the shot blasting machine housing. A motor is fixedly connected to the outer wall of the shot blasting machine housing. One end of the roller is fixedly connected to the output end of the roller, and a gear is fixedly connected to the outer wall of the roller.
[0010] As a further description of the above technical solution:
[0011] The elastic component includes a second spring, which is sleeved on the outer wall of the sliding column. One end of the second spring is fixedly connected to the inside of the hollow column, and the other end of the second spring is fixedly connected to the top of the sliding disc.
[0012] As a further description of the above technical solution:
[0013] The cleaning component includes a scraper that is slidably connected inside the shot blasting machine housing.
[0014] As a further description of the above technical solution:
[0015] A pull rod is fixedly connected to the outer wall of the scraper, and a limit post is fixedly connected to the outer wall of the scraper.
[0016] As a further description of the above technical solution:
[0017] A spring is fitted on the outer wall of the pull rod. One end of the spring is fixedly connected to the outer wall of the scraper, and the other end of the spring is fixedly connected to the inner wall of the shot blasting machine.
[0018] As a further description of the above technical solution:
[0019] A collection frame is slidably connected inside the shot blasting machine housing, and a hollow frame is fixedly connected to the outer wall of the shot blasting machine housing. A pin block is slidably connected inside the hollow frame, and a second pull rod is fixedly connected to the outer wall of the pin block. The second pull rod is slidably connected inside the hollow frame.
[0020] As a further description of the above technical solution:
[0021] A spring is installed inside the hollow frame. One end of the spring is fixedly connected to the bottom of the pin block, and the other end of the pin block is fixedly connected to the inside of the hollow frame.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, by pressing the sliding column, the sliding plate and trapezoidal column are driven to slide downward, thereby releasing the locked state of the elliptical ball. Then, the limiting plate is moved, and the elliptical ball slides into the hollow column, thereby removing the sliding frame and protective net cover from the shot blasting machine box. This achieves the effect of disassembling the protective cover of the shot blasting machine, solving the problem that the protective cover cannot be removed and replaced when it is damaged, and improving the safety of the shot blasting machine.
[0024] 2. In this utility model, by pulling the first pull rod, the scraper slides inside the shot blasting machine chamber, and at the same time, the limiting post slides inside the shot blasting machine chamber. During the sliding process, the scraper compresses the third spring. Then, by pulling the second pull rod, the pin block slides, and the collection frame is pulled out, thereby achieving the effect of cleaning the debris inside the shot blasting machine chamber. This solves the problem of debris accumulation causing the shot blasting machine to stop operating and improves the service life of the shot blasting machine. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a shot blasting machine for liquid forging of an automotive swing arm, as proposed in this utility model.
[0026] Figure 2 This is a cross-sectional structural diagram of the fixing frame of a shot blasting machine for liquid forging of an automotive swing arm, as proposed in this utility model.
[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0028] Figure 4 This is a cross-sectional structural diagram of the shot blasting machine housing for a liquid forging machine for automotive swing arms proposed in this utility model.
[0029] Legend:
[0030] 1. Shot blasting machine housing; 2. Motor; 3. Cylinder; 4. Spray wheel; 5. Sliding frame; 6. Protective mesh cover; 7. Fixing frame; 8. Collection frame; 9. Roller; 10. Gear; 11. Limiting plate; 12. Hollow column; 13. Sliding column; 14. Spring 1; 15. Spring 2; 16. Sliding disc; 17. Trapezoidal column; 18. Elliptical ball clamp; 19. Scraper; 20. Pull rod 1; 21. Spring 3; 22. Limiting column; 23. Hollow frame; 24. Pin block; 25. Pull rod 2. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a shot blasting machine for liquid forging of automotive swing arms, including a shot blasting machine housing 1. The shot blasting machine housing 1 is used to accommodate the workpiece for shot blasting and provide protection. A cylinder 3 is fixedly connected to the top of the shot blasting machine housing 1. The cylinder 3 is used to drive the jet wheel 4 to perform shot blasting. The output end of the cylinder 3 is fixedly connected to the jet wheel 4. The jet wheel 4 is used to propel projectiles at high speed to clean the surface of the workpiece. A roller assembly is provided inside the shot blasting machine housing 1. The roller assembly is used to drive the workpiece to rotate to achieve uniform shot blasting. A sliding frame 5 is slidably connected inside the shot blasting machine housing 1. The sliding frame 5 is used to install and protect the mesh cover 6. The protective mesh cover 6 is provided inside the sliding frame 5. The protective mesh cover 6 is used to block the splashed projectiles and debris to prevent equipment damage. A fixed frame 7 is fixedly connected to the outer wall of the shot blasting machine housing 1. A limit plate 11 is slidably connected to the top of the shot blasting machine housing 1. The limit plate 11 is used to control the operation of the disassembly assembly. The disassembly assembly is provided inside the limit plate 11.
[0033] The disassembly assembly includes a hollow column 12 and a sliding column 13. The hollow column 12 guides the movement of the sliding column 13. The outer wall of the hollow column 12 is fixedly connected to the inside of the limiting plate 11. The sliding column 13 is slidably connected to the inside of the hollow column 12 and is used to transmit operating force to disassemble the protective mesh cover 6. The outer wall of the sliding column 13 is provided with an elastic component, which is used to provide a restoring force to restore the sliding column 13 to its initial position. The bottom of the sliding column 13 is fixedly connected to a sliding disk 16, which is used to drive the trapezoidal column 17 to move. The bottom of the sliding disk 16 is fixedly connected to the trapezoidal column 17, which is used to push the elliptical retaining ball 18 to release the limiting state. The hollow column 12 is slidably connected to the inside of the elliptical retaining ball 18, which is used to lock or release the position of the sliding frame 5. The shot blasting machine housing 1 is provided with a cleaning component, which is used to clean the debris inside the shot blasting machine housing 1 to maintain the normal operation of the equipment.
[0034] Reference Figure 1 and Figure 4The roller assembly includes rollers 9, which support and rotate the workpiece to be processed, ensuring uniform shot blasting. Rollers 9 are rotatably connected inside the shot blasting machine housing 1. A motor 2 is fixedly connected to the outer wall of the shot blasting machine housing 1, providing rotational power to rollers 9. One end of roller 9 is fixedly connected to the output end of the motor 2. A gear 10 is fixedly connected to the outer wall of roller 9, enabling synchronous rotation among multiple rollers 9 to ensure smooth workpiece rotation. The elastic component includes a second spring 15, which provides support for the sliding column 13. The spring force allows it to automatically return to its original position. Spring 15 is sleeved on the outer wall of the sliding column 13. One end of spring 15 is fixedly connected to the inside of the hollow column 12, and the other end is fixedly connected to the top of the sliding disc 16. The cleaning assembly includes a scraper 19, which is used to scrape away debris accumulated at the bottom of the shot blasting machine chamber 1. The scraper 19 is slidably connected inside the shot blasting machine chamber 1. A pull rod 20 is fixedly connected to the outer wall of the scraper 19 for manual operation of the scraper 19. A limiting post 22 is fixedly connected to the outer wall of the scraper 19. 2. To limit the movement range of the scraper 19 and prevent excessive displacement, a spring 3 21 is sleeved on the outer wall of the pull rod 1 20. The spring 3 21 is used to automatically reset the scraper 19 to its initial position. One end of the spring 3 21 is fixedly connected to the outer wall of the scraper 19, and the other end is fixedly connected to the inner wall of the shot blasting machine housing 1. A collection frame 8 is slidably connected inside the shot blasting machine housing 1. The collection frame 8 is used to collect the debris scraped by the scraper 19 for easy cleaning. A hollow frame 23 is fixedly connected to the outer wall of the shot blasting machine housing 1. The hollow frame 23 is used to install the pin mechanism. A pin block 24 is slidably connected inside the hollow frame 23. The pin block 24 is used to lock the collection frame 8 to prevent it from sliding out accidentally. A pull rod 25 is fixedly connected to the outer wall of the pin block 24. The pull rod 25 is used to manually control the movement of the pin block 24. The pull rod 25 is slidably connected inside the hollow frame 23. A spring 14 is provided inside the hollow frame 23. The spring 14 is used to keep the pin block 24 in a locked state. One end of the spring 14 is fixedly connected to the bottom of the pin block 24, and the other end of the spring 14 is fixedly connected to the inside of the hollow frame 23.
[0035] Working Principle: When using a shot blasting machine to perform liquid forging on an automotive swing arm, the swing arm is first placed inside the shot blasting machine chamber 1. Then, by starting the motor 2 and cylinder 3, cylinder 3 drives the spray wheel 4 to rotate, and motor 2 drives the roller 9 inside the shot blasting machine chamber 1 to rotate, ensuring the swing arm is evenly sprayed. Simultaneously, the sliding frame 5 moves the protective mesh cover 6 to close the shot blasting machine chamber 1, preventing steel shot from splashing. When the protective mesh cover 6 is damaged after prolonged use, pressing the sliding column 13 causes the sliding disc 16 and trapezoidal column 17 to slide downwards inside the hollow column 12. As the sliding disc 16 moves downwards, it stretches the spring 15, allowing the elliptical ball 18 to slide inside the hollow column 12. Then, pulling the limiting plate 11 moves the hollow column 12 upwards, causing the sliding elliptical ball 18 to be pressed against the inside of the sliding hollow column 12, thus achieving the purpose of disassembling the limiting plate 11. This allows the sliding frame 5 and protective mesh cover 6 to be removed from the shot blasting machine housing 1 for replacement. When the swing arm is shot blasted, and the generated dust and debris need to be cleaned, firstly, by pulling the first pull rod 20, the scraper 19 slides inside the shot blasting machine housing 1 to scrape the debris inside the shot blasting machine housing 1. The scraped debris is pushed into the collection frame 8. When the first pull rod 20 is pulled, the third spring 21 is compressed, and the limiting post 22 slides inside the shot blasting machine housing 1. Then, by releasing the first pull rod 20, the third spring 21 releases its elasticity, causing the scraper 19 to reset. During the reset process of the scraper 19, the debris inside the shot blasting machine housing 1 is scraped again. Then, by pulling the second pull rod 25, the pin block 24 slides inside the hollow frame 23 and compresses the first spring 14. Finally, the collection frame 8 is pulled out from inside the shot blasting machine housing 1, thus achieving the purpose of cleaning and transferring the debris.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A shot blasting machine for liquid forging of automotive swing arms, comprising a shot blasting machine housing (1), characterized in that: A cylinder (3) is fixedly connected to the top of the shot blasting machine housing (1). A jet wheel (4) is fixedly connected to the output end of the cylinder (3). A roller assembly is provided inside the shot blasting machine housing (1). A sliding frame (5) is slidably connected inside the shot blasting machine housing (1). A protective mesh cover (6) is provided inside the sliding frame (5). A fixed frame (7) is fixedly connected to the outer wall of the shot blasting machine housing (1). A limit plate (11) is slidably connected to the top of the shot blasting machine housing (1). A disassembly assembly is provided inside the limit plate (11). The disassembly assembly includes a hollow column (12) and a sliding column (13). The outer wall of the hollow column (12) is fixedly connected to the inside of the limiting plate (11). The sliding column (13) is slidably connected to the inside of the hollow column (12). An elastic component is provided on the outer wall of the sliding column (13). A sliding disc (16) is fixedly connected to the bottom of the sliding column (13). A trapezoidal column (17) is fixedly connected to the bottom of the sliding disc (16). An elliptical ball (18) is slidably connected inside the hollow column (12). A cleaning component is provided inside the shot blasting machine housing (1).
2. The shot blasting machine for liquid forging of automotive swing arms according to claim 1, characterized in that: The roller assembly includes a roller (9), which is rotatably connected inside the shot blasting machine housing (1). A motor (2) is fixedly connected to the outer wall of the shot blasting machine housing (1). One end of the roller (9) is fixedly connected to the output end of the roller (9), and a gear (10) is fixedly connected to the outer wall of the roller (9).
3. The shot blasting machine for liquid forging of automotive swing arms according to claim 1, characterized in that: The elastic component includes a second spring (15), which is sleeved on the outer wall of the sliding column (13). One end of the second spring (15) is fixedly connected to the inside of the hollow column (12), and the other end of the second spring (15) is fixedly connected to the top of the sliding disk (16).
4. The shot blasting machine for liquid forging of automotive swing arms according to claim 1, characterized in that: The cleaning assembly includes a scraper (19) which is slidably connected inside the shot blasting machine housing (1).
5. A shot blasting machine for liquid forging of automotive swing arms according to claim 4, characterized in that: A pull rod (20) is fixedly connected to the outer wall of the scraper (19), and a limit post (22) is fixedly connected to the outer wall of the scraper (19).
6. The shot blasting machine for liquid forging of automotive swing arms according to claim 5, characterized in that: The outer wall of the pull rod (20) is fitted with a spring (21). One end of the spring (21) is fixedly connected to the outer wall of the scraper (19), and the other end of the spring (21) is fixedly connected to the inner wall of the shot blasting machine box (1).
7. A shot blasting machine for liquid forging of automotive swing arms according to claim 1, characterized in that: The shot blasting machine housing (1) is slidably connected to a collection frame (8), and a hollow frame (23) is fixedly connected to the outer wall of the shot blasting machine housing (1). A pin block (24) is slidably connected inside the hollow frame (23), and a pull rod (25) is fixedly connected to the outer wall of the pin block (24). The pull rod (25) is slidably connected inside the hollow frame (23).
8. A shot blasting machine for liquid forging of automotive swing arms according to claim 7, characterized in that: A spring (14) is provided inside the hollow frame (23). One end of the spring (14) is fixedly connected to the bottom of the pin block (24), and the other end of the pin block (24) is fixedly connected to the inside of the hollow frame (23).