Mechanical property inspection device for forging automobile swing arm

Abstract

The utility model relates to the technical field of automobile swing arm inspection, and discloses a mechanical property inspection device for forging an automobile swing arm, which comprises a bottom plate, fixing assemblies in bilateral symmetry are arranged at the top of the bottom plate, a test swing arm is arranged between the fixing assemblies, and limiting assemblies are arranged in the fixing assemblies. And the limiting assembly comprises a plurality of sleeve columns, a plurality of balls are slidably connected to the interiors of the sleeve columns, inner columns are slidably connected to the inner walls of the sleeve columns, limiting grooves are formed in one sides of the outer walls of the inner columns, and buttons are fixedly connected to the side walls of the inner columns. According to the utility model, after the sleeve column is inserted into the linkage seat and the connecting seat, the button is pressed down, so that the ball slides into the limiting groove, then the button is loosened, the reset spring reversely pushes the inner column to reset, the outer wall of the ball is clamped into the linkage seat and the groove position of the connecting seat, and then the bolt is inserted into the button, so that the effect of quickly fixing the test swing arm is achieved; the problem that swing arm installation of a traditional detection device is tedious is solved, and the detection preparation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive swing arm inspection technology, and in particular to a mechanical performance inspection device for forged automotive swing arms. Background Technology

[0002] In the automotive manufacturing industry, forged automotive control arms are core components of vehicle suspension systems. Their mechanical properties directly affect the vehicle's driving stability, handling precision, and safety reliability. Therefore, it is crucial to develop a high-precision and high-efficiency mechanical property testing device for forged automotive control arms. This device simulates the complex stress scenarios experienced by the control arm during actual driving and quantitatively tests key mechanical indicators such as the fatigue strength and load-bearing capacity of the control arm. It is an important technical means to ensure the quality of automotive parts.

[0003] Existing forged automotive swing arm mechanical performance testing devices mainly rely on traditional mechanical connection structures to fix the swing arm and replace the testing modules. In the swing arm installation stage, bolts and pressure plates are commonly used for fixing. After positioning the swing arm at the testing station, the operator must screw in multiple bolts one by one and adjust the position of the pressure plate. The swing arm is then fixed to the testing platform by mechanical clamping force. In terms of testing module replacement, traditional devices usually use a slot and screw locking structure. Different functional testing modules are connected to the testing host through customized interfaces. When replacing, the screws must be removed, the old module removed, the new module installed by aligning the slot, and the screws tightened again.

[0004] However, traditional testing devices suffer from significant efficiency issues during swing arm installation. Due to the use of multiple bolts for individual tightening, a single swing arm installation requires operators to perform dozens of tightening operations and repeatedly adjust the swing arm position to ensure hole alignment. When testing different models of swing arms, it is also necessary to disassemble the original bolts and replace the appropriate pressure plates and positioning components, further extending the test preparation time. This cumbersome installation method not only increases the labor intensity of operators but also results in an excessively high percentage of idle time for the testing equipment, making it difficult to meet the high-volume, fast-paced testing needs of automotive production lines. Therefore, a mechanical property testing device for forged automotive swing arms is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a mechanical performance inspection device for forged automotive control arms, which aims to improve the cumbersome installation process of control arms in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A mechanical property testing device for forged automotive swing arms includes a base plate, a left-right symmetrical fixing assembly is provided on the top of the base plate, a test swing arm is provided between the fixing assemblies, a limit assembly is provided inside each fixing assembly, and a detection assembly is provided above the fixing assembly.

[0008] The limiting component includes multiple sleeves, the outer walls of which are slidably connected to the test swing arm and the fixing component. Multiple ball bearings are slidably connected inside each sleeve, the ball bearings being circumferentially distributed. Inner columns are slidably connected to the inner walls of each sleeve. Limiting grooves are formed on one side of the outer wall of each inner column. Buttons are fixedly connected to the side walls of each inner column. Return springs are sleeved on the outer walls of each inner column. One end of each return spring is fixedly connected to the side wall of the button, and the other end is fixedly connected to the inner wall of each sleeve. Pins are slidably connected inside each button.

[0009] As a further description of the above technical solution:

[0010] The fixing component includes a fixing block, the bottom of which is fixedly connected to one side of the top of the base plate. A sliding plate is slidably connected to the side wall of the fixing block, and a left-right symmetrical connecting seat is fixedly connected to the side wall of the sliding plate. A left-right symmetrical bracket is fixedly connected to the other side of the top of the base plate.

[0011] As a further description of the above technical solution:

[0012] The bracket is slidably connected to a connecting rod inside each bracket. A linkage seat is fixedly connected to the center of the outer wall of the connecting rod. An electric actuator is provided on the side of the connecting rod. The outer wall of the electric actuator is fixedly connected to the inside of one side of the bracket. The output end of the electric actuator is fixedly connected to the side wall of the connecting rod. Both ends of the test swing arm are slidably connected to the linkage seat and the connecting seat inside each bracket. The outer wall of the sleeve column is slidably connected to the linkage seat and the connecting seat inside each sleeve column.

[0013] As a further description of the above technical solution:

[0014] Multiple support columns are fixedly connected to the top of the base plate. The support columns are distributed in a rectangular array. A top plate is fixedly connected to the top of each support column. A controller is fixedly connected to the top of the top plate. The detection component is located at the bottom of the top plate.

[0015] As a further description of the above technical solution:

[0016] The detection assembly includes a mechanical testing instrument, a connecting block is slidably connected to the top of the mechanical testing instrument, an electric actuator is provided on the top of the connecting block, the outer wall of the electric actuator is fixedly connected to the inside of the top plate, and the output end of the electric actuator is fixedly connected to the center position of the top of the connecting block.

[0017] As a further description of the above technical solution:

[0018] The connecting block has multiple symmetrically arranged limiting balls inside. Each limiting ball has a limiting plate fixedly connected to its side wall. Both the limiting plate and the outer wall of the limiting ball are slidably connected inside the connecting block.

[0019] As a further description of the above technical solution:

[0020] Each of the limiting plates is provided with a limiting spring on its side, and the limiting spring is located inside the electric actuator.

[0021] As a further description of the above technical solution:

[0022] One end of each limiting spring is fixedly connected to the side wall of the limiting plate, and the other end of each limiting spring is fixedly connected to the inside of the connecting block.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, after inserting the sleeve into the corresponding linkage seat and connecting seat internal hole, press the button to make the inner column and the limiting groove slide into the sleeve, so that the ball slides into the limiting groove. Then release the button, the reset spring pushes the inner column back to reset, so that the ball slides out of the limiting groove and its side wall is locked into the linkage seat and connecting seat groove. Then insert the pin into the button to achieve the effect of quickly fixing the test swing arm. This solves the problem of cumbersome installation of the swing arm in traditional testing devices and improves the efficiency of test preparation.

[0025] 2. In this utility model, the operator manually pulls the dynamics detector so that its top slide rail slides out along the connecting block groove. During installation, the top guide rail of the detector is inserted into the connecting block groove. After it is in place, the limit spring pushes the limit plate back, so that the limit ball resets and locks into the corresponding hole. This achieves the effect of quick replacement of different detection modules, solves the problem of cumbersome and time-consuming traditional detection module replacement methods, and improves detection efficiency. Attached Figure Description

[0026] Figure 1 This is a perspective view of a mechanical property testing device for forged automobile swing arms proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the connecting block structure of a mechanical performance inspection device for forged automobile swing arms proposed in this utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic diagram of the test swing arm structure of a mechanical performance testing device for forged automobile swing arms proposed in this utility model;

[0030] Figure 5 This is a schematic diagram of the sleeve structure of a mechanical performance inspection device for forged automobile swing arms proposed in this utility model.

[0031] Legend:

[0032] 1. Base plate; 2. Support column; 3. Top plate; 4. Controller; 5. Test swing arm; 6. Fixing block; 7. Sliding plate; 8. Connecting seat; 9. Bracket; 10. Electric actuator one; 11. Connecting rod; 12. Linkage seat; 13. Electric actuator two; 14. Connecting block; 15. Mechanical testing instrument; 16. Limit spring; 17. Limit plate; 18. Limit ball; 19. Sleeve column; 20. Inner column; 21. Ball bearing; 22. Limit groove; 23. Button; 24. Return spring; 25. Pin. Detailed Implementation

[0033] 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.

[0034] Reference Figure 1 and Figure 4 , Figure 5 The present invention provides an embodiment of a mechanical performance testing device for forged automotive swing arms, comprising a base plate 1, which is made of cast iron and has high strength and stability, and is used to provide basic support for the entire device. The top of the base plate 1 is provided with left and right symmetrical fixing components, and the fixing components are used to place test swing arms 5. The fixing components are provided with limit components inside to fix the position of the test swing arms 5. The fixing components are provided with detection components above the fixing components to perform mechanical performance testing on the test swing arms 5.

[0035] The limiting assembly includes multiple sleeves 19, made of stainless steel, which serve as mounting carriers for the balls 21 and inner columns 20, and guide the installation and positioning of the test swing arm 5. The outer walls of the sleeves 19 are slidably connected to the test swing arm 5 and the fixing assembly. Multiple balls 21, made of stainless steel, are slidably connected inside each sleeve 19, used to engage with the slots inside the linkage seat 12 and connecting seat 8, achieving mechanical locking of the test swing arm 5. The balls 21 are circumferentially distributed. Inner columns 20 are slidably connected to the inner walls of each sleeve 19. Each inner column 20 has a limiting groove 22 on one side of its outer wall to accommodate the balls 21, controlling their extension and retraction through their own displacement. Buttons 23, made of engineering plastic, are fixedly connected to the side walls of each inner column 20. The inner column 20 is constructed with a non-slip textured surface for easy operation. Each inner column 20 has a return spring 24 fitted onto its outer wall. These return springs, made of spring steel, provide a restoring force to the inner column 20, allowing it to return to its original position after the button 23 is released. One end of each return spring 24 is fixedly connected to the side wall of the button 23, and the other end is fixedly connected to the inner wall of the sleeve column 19. Each button 23 has a sliding pin 25, made of steel, which is inserted into the button 23 to lock the position of the button 23 and the inner column 20, preventing loosening during testing. The fixing assembly includes a fixing block 6, made of cast iron. The bottom of the fixing block 6 is fixedly connected to the top side of the base plate 1 by bolts, providing support for the sliding mechanism. The moving plate 7 and connecting seat 8 are slidably connected to the side wall of the fixed block 6. The sliding plate 7 is made of aluminum alloy, has a light weight and good sliding performance, and is fixed to the side wall of the fixed block 6 by bolt connection. When the position needs to be adjusted, the sliding plate 7 can be slid by simply loosening the bolt. The side wall of the sliding plate 7 is fixedly connected to the left and right symmetrical connecting seats 8, which are made of stainless steel and are used to connect one end of the test swing arm 5. The other side of the top of the base plate 1 is fixedly connected to the left and right symmetrical brackets 9. The brackets 9 are slidably connected to the inside of each connecting rod 11. The center of the outer wall of the connecting rod 11 is fixedly connected to the linkage seat 12, which is made of stainless steel and is used to connect the other end of the test swing arm 5. The side of the connecting rod 11 is provided with an electric pusher 10. Device 10 is a device that converts electrical energy into mechanical energy. It consists of components such as a motor and a lead screw. Electric actuator 10 is existing technology and will not be described in detail here. The outer wall of electric actuator 10 is fixedly connected to the inside of one side bracket 9. The output end of electric actuator 10 is fixedly connected to the side wall of connecting rod 11 via a coupling, used to push connecting rod 11 to its original position. Both ends of the test swing arm 5 are slidably connected to the inside of linkage seat 12 and connecting seat 8. The outer walls of the sleeve column 19 are also slidably connected to the inside of linkage seat 12 and connecting seat 8. Multiple support columns 2 are fixedly connected to the top of the base plate 1. The support columns 2 are distributed in a rectangular array. A top plate 3 is fixedly connected to the top of each support column 2. A controller 4 is fixedly connected to the top of the top plate 3. The controller 4 consists of a metal shell and internal electronic components.The controller 4, used to control the operation of the entire device, is existing technology and will not be described in detail here. The detection component is located at the bottom of the top plate 3.

[0036] Specifically, when using this mechanical performance testing device for forged automotive swing arms, the operator first aligns one end of the test swing arm 5 with the hole inside the linkage seat 12 and inserts one end of the test swing arm 5 into the linkage seat 12. Then, the other two ends of the test swing arm 5 are inserted into the connecting seat 8. Next, the operator inserts the sleeve 19 into the corresponding holes inside the linkage seat 12 and connecting seat 8 until the sleeve 19 is partially inserted. At this point, the operator presses button 23 towards the inside of the sleeve 19, causing the inner column 20 and the limiting groove 22 to slide towards the inside of the sleeve 19. This gradually compresses the return spring 24, storing elastic potential energy. The displacement of the inner column 20 causes the ball 21 to slide into the limiting groove 22. When the sleeve 19 is inserted to the designated position, the operator... When the operator releases button 23, the return spring 24 releases its stored elastic potential energy, pushing the inner column 20 back to its original position. The ball 21 slides out from the limiting groove 22. After the ball 21 slides out of the limiting groove 22, one side of its outer wall is squeezed by the outer wall of the inner column 20. The outer wall of the inner column 20 applies a force to the ball 21 in the direction of the slot of the linkage seat 12 and the connecting seat 8, thereby causing the other side of the outer wall of the ball 21 to be inserted into the slot inside the linkage seat 12 and the connecting seat 8, thus achieving mechanical locking of the test swing arm 5. Subsequently, the operator inserts the pin 25 into button 23 to lock the position of button 23 and inner column 20, preventing them from loosening during the test, thereby completing the fixation of the test swing arm 5 and achieving the effect of quickly fixing the test swing arm 5.

[0037] After the test swing arm 5 is fixed in position, the operator first activates the electric actuator 13 via the controller 4. The output end of the electric actuator 13 extends downward in a straight line, causing the connecting block 14 to move downward, which in turn causes the dynamic detector 15 to move downward as well. The dynamic detector 15 moves in a straight line from above the test swing arm 5 towards the outer wall of the test swing arm 5 until the inside of the dynamic detector 15 covers the outer wall of the test swing arm 5. Then, the operator activates the electric actuator 10 via the controller 4. The output end of the electric actuator 10 pushes the connecting rod 11 to move back to its original position. Under the pushing force of the output end of the electric actuator 10, the connecting rod 11 moves inside the bracket 9. The test arm 5 moves linearly from its initial position to one side. After reaching its extreme position, the output end of the electric actuator 10 pulls the connecting rod 11 in the opposite direction, moving it linearly to the other side. This reciprocating motion causes the connecting rod 11 to move, which in turn causes the linkage seat 12 to move as well. This causes one end of the test arm 5 to swing left and right. At this time, the sensor on the inner wall of the mechanical testing instrument 15 starts to work and detects the outer wall of the test arm 5. The sensor senses the stress, strain and other physical quantities of the test arm 5 during the swing process, converts them into electrical signals and transmits them to the controller 4. The controller 4 processes and analyzes the electrical signals to obtain the mechanical performance data of the test arm 5.

[0038] Reference Figure 2 and Figure 3The detection component includes a mechanical testing instrument 15, which is the core device for measuring the mechanical parameters of the swing arm. It typically consists of a metal casing and internal sensors. The mechanical testing instrument 15 is existing technology and will not be described in detail here. A connecting block 14 is slidably connected to the top of the mechanical testing instrument 15. A slide rail is provided on the top of the casing of the mechanical testing instrument 15, and a groove is provided on the bottom of the connecting block 14. The connecting block 14 is used to connect and position the mechanical testing instrument 15 with the electric actuator 13. The electric actuator 13 is located on the top of the connecting block 14. The electric actuator 13 is a drive device that converts electrical energy into mechanical energy, typically consisting of a motor, a lead screw, and a casing. The electric actuator 13 is existing technology and will not be described in detail here. The outer wall of the electric actuator 13 is fixedly connected to the inside of the top plate 3. The output end of the electric actuator 13 is fixedly connected to the center of the top of the connecting block 14 via a coupling, used to drive the connecting block 14 and the force... The mechanical testing instrument 15 moves up and down. Multiple symmetrically positioned limiting balls 18 are installed inside the connecting block 14. These limiting balls 18 are made of steel and are used to engage with the holes in the top guide rail of the mechanical testing instrument 15, achieving mechanical locking. Limiting plates 17 are fixedly connected to the side walls of each limiting ball 18, transmitting the thrust of the limiting springs 16 and limiting the range of movement of the limiting balls 18. The outer walls of the limiting plates 17 and the limiting balls 18 are slidably connected inside the connecting block 14. Limiting springs 16 are installed on the sides of each limiting plate 17. These limiting springs 16 are made of spring steel and have good elasticity, providing a restoring force for the limiting plates 17 and the limiting balls 18, allowing them to automatically engage with the holes after the mechanical testing instrument 15 is installed. The limiting springs 16 are located inside the electric actuator 13. One end of each limiting spring 16 is fixedly connected to the side wall of the limiting plate 17, and the other end is fixedly connected inside the connecting block 14.

[0039] Specifically, when different testing tasks require changing the mechanical testing instrument 15, the operator first holds the outer casing of the mechanical testing instrument 15 and applies a pulling force to one side. Under the pulling force of the operator's hand, the top slide rail of the mechanical testing instrument 15 slides outward in a straight line along the groove of the connecting block 14. At the same time as the mechanical testing instrument 15 slides, the limiting ball 18 inside the connecting block 14 is squeezed by the top slide rail of the mechanical testing instrument 15. After the limiting ball 18 contacts the slide rail, the slide rail applies a lateral pushing force to the limiting ball 18. Under the action of the pushing force, the limiting ball 18 drives the limiting plate 17 to retract in a straight line towards the inside of the connecting block 14, so that the limiting spring 16 is gradually compressed, and the elastic potential energy continues to increase. When the top slide rail of the mechanical testing instrument 15 completely slides out of the groove of the connecting block 14... Afterwards, the staff can remove the mechanical testing instrument 15 from the connecting block 14 and place it aside. Then, the staff selects a new mechanical testing instrument 15 that matches the current testing task, aligns the guide rail on its top with the sliding groove of the connecting block 14, and pushes the new mechanical testing instrument 15 inward. When the new mechanical testing instrument 15 slides into place, the hole on its top guide rail moves to the corresponding position of the limiting ball 18. At this time, the previously compressed limiting spring 16 begins to release its elastic potential energy, pushing the limiting plate 17 and the limiting ball 18 back to their original positions, so that the limiting ball 18 is locked into the corresponding hole of the guide rail. After the limiting ball 18 is locked into the hole, it fits tightly with the hole wall, preventing the mechanical testing instrument 15 from moving axially, thus completing the fixation of the mechanical testing instrument 15 and achieving the effect of quickly changing different testing modules.

[0040] Working principle: When using this mechanical performance testing device for forged automotive swing arms, the operator first places one end of the test swing arm 5 inside the linkage seat 12, and places the other two ends of the test swing arm 5 inside the connecting seat 8 on the side wall of the sliding plate 7. Then, the sleeve 19 is inserted into the corresponding holes inside the linkage seat 12 and the connecting seat 8. Then, the button 23 is pressed, causing the inner column 20 and the limiting groove 22 to slide into the sleeve 19, causing the return spring 24 to be compressed, so that the ball 21 slides into the limiting groove 22. When the sleeve 19 is inserted into the designated position, the button 23 is released. Under the counter-push of the return spring 24, the inner column 20 returns to its original position, and the ball 21 slides out from the limiting groove 22. One side of its outer wall is squeezed by the outer wall of the inner column 20, so that the other side of its outer wall is stuck into the groove inside the linkage seat 12 and the connecting seat 8. Then, the operator inserts the pin 25 into the button 23 to fix the test swing arm 5, thus achieving the effect of quickly fixing the test swing arm 5.

[0041] After the test swing arm 5 is fixed in position, the staff first starts the electric pusher 13 through the controller 4. The electric pusher 13 drives the connecting block 14 to move downward, which in turn moves the dynamic detector 15 downward as well, so that the inside of the dynamic detector 15 covers the outer wall of the test swing arm 5. Then, the electric pusher 10 is started. The electric pusher 10 drives the connecting rod 11 to move back to the reset position. The displacement of the connecting rod 11 then drives the linkage seat 12 to move as well, thereby causing one end of the test swing arm 5 to swing left and right. At this time, the sensor on the inner wall of the dynamic detector 15 can detect the outer wall of the test swing arm 5.

[0042] When different testing tasks require changing the mechanical testing instrument 15, the operator manually pulls the instrument to one side, causing the slide rail on top of the instrument 15 to slide out along the groove of the connecting block 14. Simultaneously, the limiting ball 18 inside the connecting block 14 is compressed by the slide rail on top of the instrument 15, causing the limiting plate 17 to retract. This compresses the limiting spring 16, allowing the operator to remove the instrument 15. During installation, the guide rail on top of the instrument 15 is inserted into the groove of the connecting block 14. After sliding into place, the limiting spring 16 pushes the limiting plate 17 and the limiting ball 18 back to their original positions, causing the limiting ball 18 to engage in the corresponding hole, thus securing the instrument 15 and achieving the effect of quickly changing different testing modules.

[0043] 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 mechanical property inspection device for forging automobile swing arms, comprising a base plate (1), characterized in that: The base plate (1) is provided with a left-right symmetrical fixing component on the top, and a test swing arm (5) is provided between the fixing components. Each fixing component is provided with a limit component inside, and a detection component is provided above the fixing component. The limiting component includes multiple sleeves (19), the outer walls of which are slidably connected to the test swing arm (5) and the fixing component. Multiple balls (21) are slidably connected inside each sleeve (19), and the balls (21) are distributed in a circumferential shape. An inner column (20) is slidably connected to the inner wall of each sleeve (19). A limiting groove (22) is opened on one side of the outer wall of each inner column (20). A button (23) is fixedly connected to the side wall of each inner column (20). A reset spring (24) is sleeved on the outer wall of each inner column (20). One end of the reset spring (24) is fixedly connected to the side wall of each button (23), and the other end of the reset spring (24) is fixedly connected to the inner wall of each sleeve (19). A pin (25) is slidably connected inside each button (23).

2. The device for checking mechanical properties of forged automobile swing arms according to claim 1, characterized in that: The fixing component includes a fixing block (6), the bottom of which is fixedly connected to one side of the top of the base plate (1), a sliding plate (7) is slidably connected to the side wall of the fixing block (6), a left-right symmetrical connecting seat (8) is fixedly connected to the side wall of the sliding plate (7), and a left-right symmetrical bracket (9) is fixedly connected to the other side of the top of the base plate (1).

3. The device for checking mechanical properties of forged automobile swing arms according to claim 2, characterized in that: The bracket (9) is slidably connected to the connecting rod (11). The connecting rod (11) is fixedly connected to the center of the outer wall of the connecting rod (11). The connecting rod (11) is provided with an electric pusher (10) on the side. The outer wall of the electric pusher (10) is fixedly connected to the inside of the bracket (9) on one side. The output end of the electric pusher (10) is fixedly connected to the side wall of the connecting rod (11). The two ends of the test swing arm (5) are slidably connected to the inside of the connecting seat (12) and the connecting seat (8). The outer wall of the sleeve (19) is slidably connected to the inside of the connecting seat (12) and the connecting seat (8).

4. The mechanical property inspection device for forging automobile swing arms according to claim 1, characterized in that: The bottom plate (1) is fixedly connected to a number of support columns (2), which are arranged in a rectangular array. The top of each support column (2) is fixedly connected to a top plate (3), and a controller (4) is fixedly connected to the top of the top plate (3). The detection component is located at the bottom of the top plate (3).

5. The device for checking mechanical properties of forged automobile swing arms according to claim 4, characterized in that: The detection component includes a mechanical detector (15), a connecting block (14) is slidably connected to the top of the mechanical detector (15), an electric actuator (13) is provided on the top of the connecting block (14), the outer wall of the electric actuator (13) is fixedly connected to the inside of the top plate (3), and the output end of the electric actuator (13) is fixedly connected to the center position of the top of the connecting block (14).

6. The device for checking mechanical properties of forged automobile swing arms according to claim 5, characterized in that: The connecting block (14) is provided with a plurality of left and right symmetrical limiting balls (18). The side walls of the limiting balls (18) are fixedly connected to limiting plates (17). The outer walls of the limiting plates (17) and the limiting balls (18) are slidably connected inside the connecting block (14).

7. The device for checking mechanical properties of forged automobile swing arms according to claim 6, characterized in that: Each of the limiting plates (17) is provided with a limiting spring (16) on its side, and the limiting spring (16) is located inside the electric pusher (13).

8. The mechanical property testing device for forged automotive control arms according to claim 7, characterized in that: One end of each limiting spring (16) is fixedly connected to the side wall of the limiting plate (17), and the other end of each limiting spring (16) is fixedly connected to the inside of the connecting block (14).

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