Continuous strength detection device for automobile parts

Abstract

The invention provides an automobile part continuous strength detection device which comprises a workpiece conveying assembly and a chassis, a control case is arranged at the bottom end of the workpiece conveying assembly, a central control structure is arranged at the top end of the chassis, and workpiece detection cases are arranged on the two sides of the top end of the chassis. A workpiece receiving rail frame is arranged at the top end of the workpiece detection machine box, an auxiliary structure is arranged at the front end of the outer side of the workpiece receiving rail frame, the center control structure comprises a servo motor assembly, a dust isolation box, a machine rail, a sliding disc and a first electric telescopic rod assembly, and the servo motor assembly is vertically arranged in the middle of the top end of the chassis. By introducing servo motor driving, an adjustable anti-rod structure and modular design of the sliding disc and the detection case, efficient automatic adjustment and backup detection functions are achieved, the problems of equipment damage and looseness of a traditional detection system are solved, and the stability and efficiency of the detection process are remarkably improved.

Description

Technical Field

[0001] The invention belongs to the field of automobile parts manufacturing, in particular to a continuous strength detection device for automobile parts. Background Art

[0002] Auto parts manufacturing refers to the industrial process used to produce various automotive accessories and components. These parts include, but are not limited to, engines, transmissions, brake systems, suspension systems, steering systems, electrical systems, as well as body and interior parts. There are many types of materials used to manufacture auto parts, including metals (such as steel, aluminum, magnesium), plastics, rubber, composite materials, etc. The choice of materials depends on the functional requirements of the parts, such as strength, durability, weight, cost and other factors. Different parts use different manufacturing processes. For example, metal parts are usually manufactured through casting, forging, stamping, welding, machining and other processes, while plastic parts are manufactured through injection molding, extrusion, blow molding and other processes. Since auto parts are directly related to the safety and performance of the vehicle, quality control is very important. Strict quality inspection and control measures need to be implemented during the manufacturing process to ensure that the products meet the design requirements and relevant standards. Modern auto parts manufacturing widely uses automation technology and intelligent manufacturing technology, such as robots, CNC machine tools, industrial Internet of Things, big data analysis, etc., to improve production efficiency, reduce costs and ensure quality. Auto parts manufacturing involves complex supply chain management. From raw material procurement, manufacturing to finished product delivery, good supply chain management can effectively control costs, shorten delivery cycles and improve customer satisfaction. With the improvement of environmental protection awareness, automobile parts manufacturing faces the requirements of reducing pollution, saving energy and reducing emissions, and achieving sustainable development, such as adopting clean production technology, recycling waste materials, etc. Automobile parts manufacturing is a technology-intensive and capital-intensive industry, which plays an important role in the healthy development of the entire automobile industry.

[0003] During the strength testing of automotive parts, the following common problems may be encountered: the testing conditions in the laboratory may be different from the working environment of the parts in actual use, such as temperature, humidity, vibration, load, etc., which may cause the test results to not fully reflect the performance of the parts under actual working conditions; the accuracy and calibration of the testing equipment directly affect the accuracy of the test results. If the equipment is not calibrated regularly, errors may occur, resulting in unreliable test results; insufficient number of test samples or unrepresentative sample selection may result in statistically insignificant results, making it difficult to fully reflect the quality status of the entire batch of parts; human operating errors during the testing process, such as improper installation , improper operation, etc., will also affect the accuracy and consistency of the test results; some parts are subjected to complex multi-axial loads and stresses in actual use. In this case, simple uniaxial tension or compression tests cannot fully evaluate their strength performance, and more complex test methods and stress analysis methods are required, such as fatigue testing, fracture mechanics analysis, etc.; different detection methods have their limitations, for example, non-destructive testing methods may not be able to find certain types of small defects, and destructive testing methods may not be used for some expensive or small-scale production parts; improper processing and analysis of test data will also affect the validity of the results, such as insufficient data acquisition frequency, low signal-to-noise ratio, insufficient error analysis, etc. In order to overcome these problems, it is usually necessary to take a variety of measures, such as improving the accuracy and reliability of detection equipment, standardizing operating standards, increasing sample size, adopting test conditions and methods that are closer to actual use conditions, and conducting comprehensive data analysis and processing. In addition, combined with computer simulation and simulation technology, the strength performance of parts can also be better predicted and verified.

[0004] Publication No. CN117249993B, the continuous strength detection mechanism and detection device of automobile parts, belonging to the field of automobile parts detection technology, includes an intermittent feeding mechanism and a detection component to realize the automatic feeding and continuous detection of automobile parts; the intermittent feeding mechanism includes a feeding trough body inclined upward from left to right, and also includes an intermittent driving component arranged on the front side wall of the feeding trough body. The present invention can realize the continuous detection of loading, intermittent feeding, detection and unloading of automobile parts. Compared with the manual feeding method, it is more efficient, alleviates the problem of long-term manual operation fatigue, and can realize automatic continuous detection, which can better adapt to the use requirements of automobile parts strength detection, and avoids the safety hazards caused by manual feeding misoperation, and the safety factor of equipment operation is higher.

[0005] In the above cases, motor components, gears and other parts were used to prevent automobile parts from tilting or falling off during transmission testing, and they were able to fully cooperate with subsequent testing equipment to carry out strength testing on automobile parts.

[0006] However, after the detection device is adjusted through the PLC control equipment, it can only achieve relative stability between the transmission component and the detection component, but cannot ensure that the automotive parts can continue to be transported into the detection component after some mechanical parts become loose after long-term use. At the same time, the equipment for detecting parts may be damaged due to certain problems during the detection work. If there is no backup detection equipment on the general detection line to supplement it in time, the overall operation of the equipment will have problems. Summary of the invention

[0007] In order to solve the above technical problems, the present invention provides a continuous strength testing device for automobile parts, which pioneered and implemented "using a motor to drive a circular platform and adding multiple camera testing equipment for backup" to solve the problems raised in the background technology.

[0008] A continuous strength testing device for automobile parts comprises: a workpiece conveying assembly and a chassis, wherein a control chassis is arranged at the bottom end of the workpiece conveying assembly, a central control structure is arranged at the top end of the chassis, workpiece detection chassis are arranged on both sides of the top end of the chassis, a connecting rail frame is arranged at the top end of the workpiece detection chassis, and an auxiliary structure is arranged at the front end of the outer side of the connecting rail frame.

[0009] Preferably, the central control structure includes a servo motor assembly, a dustproof box, a machine rail, a sliding plate and a first electric retracting rod assembly. A servo motor assembly is vertically arranged in the middle of the top of the chassis, a dustproof box is arranged on the top of the servo motor assembly, a first electric retracting rod assembly is arranged in the middle of the inner side of the dustproof box, machine rails are penetrated through the front and rear ends of the inner side of the dustproof box, a sliding plate is arranged on the top of the machine rail, and the cross-sectional shape of the outer side of the machine rail is the same as the cross-sectional shape of the inner side of the sliding plate, so as to facilitate the assembly of the machine rail and the sliding plate.

[0010] Preferably, a rotating structure is formed between the outer shell portion at the bottom end of the servo motor assembly and the inner side of the chassis, so that the servo motor assembly can independently drive the dust isolation box to rotate, and also allows the servo motor assembly to rotate on the inner side of the chassis.

[0011] Preferably, the middle of the inner side of the dustproof box has a space with a transverse diameter greater than the sum of the thickness of the machine rail and the length of the outer shell of the first electric retractable rod assembly, so that the machine rail can move sufficiently inside the dustproof box.

[0012] Preferably, the relative diameter of the machine rail is smaller than the diameter of the chassis, which facilitates the installation of the machine rail.

[0013] Preferably, the center point of the connecting rail frame and the center point of the workpiece transfer assembly are on the same straight line to prevent the automobile parts from being separated.

[0014] Preferably, the depth of the groove formed on the inner side of the connecting rail frame is greater than the depth of the groove formed on the inner side of the workpiece transfer assembly, so as to facilitate the transmission of automobile parts.

[0015] Preferably, the auxiliary structure includes double-sided anti-rods, a second electric retractable rod assembly and a support plate; a support plate is provided at the bottom end of the outer front end of the connecting rail frame, and second electric retractable rod assemblies are provided on both sides of the top of the support plate; double-sided anti-rods are movably provided on both sides of the outer front end of the connecting rail frame, and a rotating structure is formed between the double-sided anti-rods and the connecting rail frame to facilitate the flipping of the double-sided anti-rods.

[0016] Preferably, the support plate and the connecting rail frame are connected by welding, and the front edge of the support plate is aligned with the front edge of the connecting rail frame, so that the double-sided anti-bars are stuck on the outside of the connecting rail frame.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When the present invention is in use, the first electric retracting rod assembly can drive the inner part of the machine rail to move forward and backward inside the dustproof box. The user can assemble the sliding plate and the workpiece detection chassis and place them on the outer surface of the machine rail, so that the installation position of the workpiece detection chassis can be adjusted according to specific usage conditions.

[0019] 2. When the present invention is in use, since the machine rail is in an arc shape and is not a closed circular rail, the installation position of the slide plate will be replaced between the two machine rails. If a break occurs in the machine rail, the user can place the installation position of the slide plate and the workpiece detection chassis outside the intact machine rail.

[0020] 3. When the present invention is in use, the servo motor assembly drives the dust isolation box to rotate, and the machine rail rotates along with the dust isolation box. Meanwhile, the workpiece detection chassis and the slide plate outside the machine rail also rotate along with the dust isolation box. When the workpiece detection chassis receives automobile workpieces for subsequent detection, because the number of automobile workpieces to be detected is insufficient, the user can start the servo motor assembly to allow the idle workpiece detection chassis at the top of the slide plate to take over the working workpiece detection chassis for detection.

[0021] 4. When the present invention is in use, the support plate installs the second electric retractable rod assembly and the double-sided anti-rods on the outside of the connecting rail frame, and the second electric retractable rod assembly drives the double-sided anti-rods to rotate. After the double-sided anti-rods rotate, the contact parts of the connecting rail frame and the workpiece conveying assembly are engaged and connected. At this time, when the workpiece is transmitted at a faster speed, the connecting rail frame and the workpiece conveying assembly will not loosen due to the vibration generated by the automobile workpiece itself, thereby interrupting the transmission of the automobile workpiece.

[0022] The beneficial effects of the above invention solve the problem that "after adjusting the detection device through the PLC control equipment, it can only achieve relative stability between the transmission component and the detection component, but cannot ensure that after some mechanical components become loose after long-term use, the automobile parts can continue to be transported into the detection component; at the same time, the equipment for detecting parts may be damaged due to certain problems during the detection work; if there is no backup detection equipment on the general detection line to supplement it in time, the overall operation of the equipment will have problems", and it introduces novel technologies and effects.

[0023] Problem Solution:

[0024] Mechanical loosening after long-term use: By using the second electric retracting rod assembly and the double-sided anti-rod structure, the tight fit between the detection device and the transmission device can be ensured through the snap connection during the workpiece transmission process, avoiding the problem of workpiece transmission interruption due to vibration or looseness. Therefore, even if some mechanical components of the detection equipment may become loose after long-term use, the device can still ensure the continuity of workpiece transmission.

[0025] Replenishment of inspection equipment after damage: The invention uses a modular design of the slide plate and the workpiece inspection chassis to allow the user to use the servo motor assembly to drive the idle workpiece inspection chassis to quickly take over the original inspection work when the inspection chassis is damaged. This design effectively solves the dilemma of the traditional inspection line being unable to replenish equipment in time after damage, and ensures the continuous operation of the overall inspection system.

[0026] New effects and technologies:

[0027] Modular, replaceable detection components: The flexible replacement function of the slide plate and workpiece detection chassis provides the ability to automatically switch to a spare chassis to continue operating even if a detection chassis is damaged, avoiding downtime of the detection line and enhancing system reliability.

[0028] Automatic adjustment and real-time replenishment: The servo motor drives the dust isolation box and the machine rail to rotate, so that the workpiece detection chassis can be automatically adjusted and position supplemented according to the detection requirements, greatly improving the detection efficiency and automation level.

[0029] Anti-vibration and loose-prevention transmission guarantee: The design of double-sided anti-bars and connecting rail frames ensures that the workpiece can maintain a stable transmission path during high-speed transmission, avoiding interruption of component transmission due to vibration.

[0030] The above invention realizes efficient automatic adjustment and backup detection functions by introducing servo motor drive, adjustable anti-rod structure, and modular design of sliding plate and detection chassis. It not only solves the equipment damage and looseness problems of traditional detection systems, but also significantly improves the stability and efficiency of the detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the appearance structure of a specific implementation method of the present invention;

[0032] Figure 2 It is a schematic diagram of the appearance structure of a specific implementation method of the present invention;

[0033] Figure 3 It is a schematic diagram of a specific implementation mode A of the present invention;

[0034] Figure 4 It is a schematic diagram of a specific implementation mode B of the present invention;

[0035] Figure 5 It is a schematic diagram of the central control structure of a specific implementation mode of the present invention;

[0036] Figure 6 It is a front view schematic diagram of a central control structure of a specific embodiment of the present invention;

[0037] Figure 7 It is a partial schematic diagram of C of a specific embodiment of the present invention;

[0038] Figure 8 It is a partial schematic diagram of D of a specific implementation mode of the present invention.

[0039] In the figure: 1. workpiece conveying assembly; 2. central control structure; 201. servo motor assembly; 202. dustproof box; 203. machine rail; 204. slide plate; 205. first electric retracting rod assembly; 3. workpiece detection chassis; 4. connecting rail frame; 5. auxiliary structure; 501. double-sided anti-bar; 502. second electric retracting rod assembly; 503. support plate; 6. chassis; 7. control chassis. DETAILED DESCRIPTION

[0040] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0041] Embodiment 1: Figure 1-8 As shown, the present invention provides a continuous strength detection device for automobile parts, comprising: a workpiece conveying assembly 1 and a chassis 6, a control chassis 7 is arranged at the bottom end of the workpiece conveying assembly 1, a central control structure 2 is arranged at the top end of the chassis 6, workpiece detection chassis 3 are arranged on both sides of the top end of the chassis 6, a connecting rail frame 4 is arranged at the top end of the workpiece detection chassis 3, and an auxiliary structure 5 is arranged at the front end of the outer side of the connecting rail frame 4.

[0042] Embodiment 2: Figure 1-8As shown, when the continuous strength detection device for automobile parts is used, the central control structure 2 includes a servo motor assembly 201, a dustproof box 202, a machine rail 203, a slide plate 204 and a first electric retractable rod assembly 205. The servo motor assembly 201 is vertically arranged in the middle of the top of the chassis 6, the dustproof box 202 is arranged at the top of the servo motor assembly 201, the first electric retractable rod assembly 205 is arranged in the middle of the inner side of the dustproof box 202, the machine rail 203 is penetrated through the front and rear ends of the inner side of the dustproof box 202, the slide plate 204 is arranged at the top of the machine rail 203, and the cross-sectional shape of the outer side of the slide plate 204 is the same as the cross-sectional shape opened on the inner side of the slide plate 204.

[0043] Since the first electric retracting rod assembly 205 can drive the machine rail 203 to move forward and backward inside the dustproof box 202, when the distance between the sliding plate 204 at the top of the machine rail 203 and the assembly part of the workpiece detection machine box 3 and the workpiece conveying assembly 1 is not enough, the machine rail 203 can be extended after being withdrawn by the first electric retracting rod assembly 205, and the user can increase or decrease the width and length of the inner groove inside the dustproof box 202. In this way, the distance that the machine rail 203 moves forward and backward on the surface of the chassis 6 is controlled.

[0044] In addition, the shape of the machine rail 203 is arc-shaped, and the slide plate 204 moves on the outside of the machine rail 203. The user can increase the number of slide plates 204, so that the user can increase the number of workpiece detection chassis 3, so as to solve the problem that after the working workpiece detection chassis 3 is damaged, the redundant workpiece detection chassis 3 can fill the vacancy.

[0045] The above-mentioned continuous strength testing device for automobile parts introduces several novel technical features and their effects:

[0046] Automation and flexibility:

[0047] The device realizes automatic and flexible operation through the components such as the servo motor component 201, the first electric retracting rod component 205 and the sliding machine rail 203 in the central control structure 2. This enables the user to adjust the position and number of the workpiece detection chassis 3 according to specific needs, thereby increasing the degree of automation and adaptability of the detection device.

[0048] Design of machine rail 203 and slide plate 204:

[0049] Through the design of the machine rail 203 and the slide plate 204, the user can flexibly adjust the installation position and number of the workpiece detection chassis 3. The machine rail 203 is designed in an arc shape and is not a closed circular rail, so that the slide plate 204 can be replaced between two machine rails 203. This means that even if a machine rail 203 is damaged, the slide plate 204 and the detection chassis 3 can continue to work on the intact machine rail 203, ensuring the continuity and reliability of the detection work.

[0050] Application of dustproof box:

[0051] The dustproof box 202 is combined with the first electric retracting rod assembly 205, so that the machine rail 203 can move forward and backward inside the dustproof box 202. This design not only helps to keep the device clean and maintainable, but also can adjust the internal groove width and length as needed, further improving the flexibility of operation.

[0052] The servo motor assembly 201 drives the rotation:

[0053] The servo motor assembly 201 drives the dustproof box 202 and the machine rail 203 inside it to rotate, so that the outer workpiece detection box 3 and the slide plate 204 can also adjust their positions with the rotation. This provides the ability of rapid response and instant adjustment when the number of workpieces is insufficient or the workpiece detection box 3 needs to be replaced, thereby improving the efficiency and continuity of the detection work.

[0054] Replacement and expansion capabilities:

[0055] Since the user can increase the number of slide plates 204 and workpiece detection chassis 3 and quickly replace a damaged detection chassis with a new one, the reliability of the device and the continuity of the detection work are significantly improved.

[0056] In summary, these novel technologies and design features have brought the following effects: enhanced automation and operational flexibility of the equipment, improved continuity and reliability of testing work. Flexible expansion and replacement capabilities are provided, effectively reducing downtime, and improving maintenance convenience and environmental adaptability of the equipment. These innovative designs play an important role in enhancing the functionality and practicality of continuous strength testing devices for automotive parts.

[0057] Embodiment 3: Figure 1-8 As shown, when the continuous strength detection device for automobile parts is used, the auxiliary structure 5 includes double-sided anti-rods 501, a second electric retractable rod assembly 502 and a support plate 503. The support plate 503 is arranged at the bottom end of the front end of the outer side of the connecting rail frame 4, and the second electric retractable rod assembly 502 is arranged on both sides of the top of the support plate 503. The double-sided anti-rods 501 are movably arranged on both sides of the outer side of the front end of the connecting rail frame 4, and a rotating structure is formed between the double-sided anti-rods 501 and the connecting rail frame 4.

[0058] Since the bottom end of the double-sided anti-bar 501 is pushed after being lifted by the second electric retracting rod assembly 502, and the double-sided anti-bar 501 rotates on the outside of the connecting rail frame 4, the double-sided anti-bar 501 connects the front edge portion of the workpiece transfer assembly 1 with the front edge portion of the connecting rail frame 4 after rotation. After the user starts the control box 7, the workpiece transfer assembly 1 at the top of the control box 7 transfers the automobile parts into the inner side of the connecting rail frame 4.

[0059] In addition, the user can extend or shorten the length of the double-sided anti-bar 501 to control the contact time between the connecting rail frame 4 and the workpiece transfer assembly 1. The user can also change the shape and thickness of the double-sided anti-bar 501 to reduce the amplitude of the workpiece transfer assembly 1 and the connecting rail frame 4 shaking left and right inside the double-sided anti-bar 501.

[0060] The auxiliary structure 5 of the continuous strength testing device for automobile parts mentioned above introduces several novel technical features and the effects they produce:

[0061] Double-sided anti-bar 501 and its adjustment function:

[0062] Rotational connection of the double-sided anti-bars 501: The double-sided anti-bars 501 are rotated by the lifting and lowering of the second electric retracting rod assembly 502, so that these double-sided anti-bars 501 can connect the workpiece conveying assembly 1 with the front edge of the connecting rail frame 4. This design ensures that the front and rear parts of the transmission path are firmly connected during the transmission of the workpiece, especially at a high speed, and improves the stability and safety during the transmission process.

[0063] Adjustable length and shape: Users can adjust the length of the double-sided anti-bars 501 as needed, and can change their shape and thickness, which gives the device more flexibility and can optimize the detection process according to specific application scenarios and workpiece characteristics, reduce the shaking amplitude in the transmission path, and ensure the smoothness of workpiece transmission.

[0064] Stability of the supporting structure:

[0065] Design and welding connection of the support plate 503: The support plate 503 is not only responsible for installing the second electric retracting rod assembly 502 and the double-side anti-rod 501, but is also fixedly connected to the connecting rail frame 4 by welding. This stable connection method improves the strength and durability of the entire auxiliary structure 5, ensuring the structural stability in long-term use.

[0066] Aligned front edges: By precisely aligning the front edges of the connecting rail frame 4 and the support plate 503, the accuracy and consistency of the structure are further increased, ensuring accurate positioning of the double-sided anti-bars 501 during operation.

[0067] Automatic regulation and control:

[0068] Application of the second electric retracting rod assembly 502: The second electric retracting rod assembly 502 can drive the double-sided anti-rods 501 to rotate and move, so that the connection and separation process between the connecting rail frame 4 and the workpiece conveying assembly 1 can be automatically completed. This not only improves the operating efficiency, but also reduces the error and labor intensity of manual operation.

[0069] The effects brought about by these technical features and designs include: improving transmission stability: through the rotation connection and length and shape adjustment of the double-sided anti-rod 501, the shaking of the workpiece during transmission can be effectively reduced, ensuring the stability of the workpiece during high-speed transmission.

[0070] Enhanced structural strength: The welded connection between the support plate 503 and the connecting rail frame 4 improves the robustness of the structure, ensuring the reliability and durability of the entire device in long-term use.

[0071] Increased operational flexibility: Users can flexibly adjust the length and shape of the double-sided anti-bars 501 according to different workpieces and operational requirements, so that the device can adapt to a variety of workpiece types and specifications.

[0072] Improved automation: The application of the second electric retracting rod assembly 502 enables automation of the adjustment and operation of the entire device, greatly improving the efficiency of the detection process and the ease of operation.

[0073] These innovative designs not only improve the functionality and reliability of the continuous strength testing device for automotive parts, but also enhance its adaptability and ease of operation in practical applications.

[0074] The automobile parts continuous strength testing device of the present invention can be implemented independently of the equipment of this embodiment.

[0075] All methods of the continuous strength testing device for automobile parts of the present invention are within the scope of protection of this patent.

[0076] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A continuous strength testing device for automobile parts, comprising: A workpiece conveying assembly (1) and a chassis (6), characterized in that: a control box (7) is arranged at the bottom end of the workpiece conveying assembly (1), a central control structure (2) is arranged at the top end of the chassis (6), workpiece detection boxes (3) are arranged on both sides of the top end of the chassis (6), a connecting rail frame (4) is arranged at the top end of the workpiece detection box (3), and an auxiliary structure (5) is arranged at the front end of the outer side of the connecting rail frame (4).

2. The continuous strength testing device for automobile parts according to claim 1, characterized in that: The central control structure (2) comprises a servo motor assembly (201), a dustproof box (202), a machine rail (203), a sliding plate (204) and a first electric retractable rod assembly (205); the servo motor assembly (201) is vertically arranged in the middle of the top of the chassis (6); the dustproof box (202) is arranged at the top of the servo motor assembly (201); the first electric retractable rod assembly (205) is arranged in the middle of the inner side of the dustproof box (202); the machine rail (203) is penetrated at the front and rear ends of the inner side of the dustproof box (202); the sliding plate (204) is arranged at the top of the machine rail (203); the cross-sectional shape of the outer side of the machine rail (203) is the same as the cross-sectional shape of the inner side of the sliding plate (204).

3. The continuous strength testing device for automobile parts according to claim 2, characterized in that: The space opened in the middle of the inner side of the dustproof box (202) has a transverse diameter greater than the sum of the thickness of the machine rail (203) and the length of the outer shell of the first electric retractable rod assembly (205).

4. The continuous strength testing device for automobile parts according to claim 2, characterized in that: A rotating structure is formed between the outer shell portion at the bottom end of the servo motor assembly (201) and the inner side of the chassis (6).

5. The continuous strength testing device for automobile parts according to claim 2, characterized in that: The relative diameter of the machine rail (203) is smaller than the diameter of the chassis (6).

6. The continuous strength testing device for automobile parts according to claim 1, characterized in that: The center point of the connecting rail frame (4) and the center point of the workpiece conveying assembly (1) are on the same straight line.

7. The continuous strength testing device for automobile parts according to claim 1, characterized in that: The depth of the groove provided on the inner side of the connecting rail frame (4) is greater than the depth of the groove provided on the inner side of the workpiece conveying component (1).

8. The continuous strength testing device for automobile parts according to claim 1, characterized in that: The auxiliary structure (5) comprises a double-sided anti-rod (501), a second electric retractable rod assembly (502) and a support plate (503); the support plate (503) is arranged at the bottom end of the front end of the outer side of the connecting rail frame (4); the second electric retractable rod assembly (502) is arranged on both sides of the top of the support plate (503); the double-sided anti-rod (501) is movably arranged on both sides of the outer side of the front end of the connecting rail frame (4); and a rotating structure is formed between the double-sided anti-rod (501) and the connecting rail frame (4).

9. The continuous strength testing device for automobile parts according to claim 8, characterized in that: The length of the double-sided protection rods (501) is equal to half the length of the front edge of the connecting rail frame (4).

10. The continuous strength testing device for automobile parts according to claim 8, characterized in that: The support plate (503) and the connecting rail frame (4) are connected by welding, and the front edge of the support plate (503) and the front edge of the connecting rail frame (4) are aligned with each other.

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