A fixture tool for strength testing of automotive parts

Abstract

The utility model discloses a clamp frock for automobile parts strength test belongs to automobile parts strength test technical field, including operation platform, the both ends of operation platform upper portion are provided with clamping box, and the clamping box of one end is connected with adjusting assembly, and the clamping box of other end is connected with operation platform, the inside of clamping box is provided with cavity, and is provided with clamping assembly in the cavity, clamping assembly includes slide cylinder, clamping rod, rubber bushing, sliding plate and spring, one end of slide cylinder is connected with the inner wall surface of clamping box, and is provided with spring in slide cylinder, one end of spring is connected with the inner wall surface of slide cylinder, the other end of slide cylinder is connected with one end of sliding plate, and the other end of sliding plate is connected with one end of clamping rod. Can be adapted to different shapes's automobile parts, effectively avoid the damage of automobile to parts when clamping, guarantee the efficiency of automobile parts strength test.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts strength testing technology, specifically relating to a fixture for testing the strength of automotive parts. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] Automotive parts, also known as auto components, auto parts, or auto spare parts, refer to the components that make up the various units of a car and all consumable materials that serve the car. They are characterized by a wide variety of types, complex substitutes, complex identification systems, and rapid price fluctuations.

[0004] A tooling fixture for automotive parts, patent number CN218427042U, includes an upper pressing assembly located behind a worktable. The upper pressing assembly includes a fixed block and a connecting block. The fixed block is fixedly installed at the rear end of the worktable. A hydraulic rod is installed at the upper end of the connecting block, and a first rotating shaft is fixedly installed at the top of the hydraulic rod. An elongated block is fixedly installed at the upper end of the fixed block. A notch is formed on the outer surface of the upper end of the elongated block. A diagonal rod is movably installed inside the notch via a second connecting shaft. One end of the diagonal rod is movably connected to the first rotating shaft. A ball seat rod is fixedly connected near the bottom of the other end of the diagonal rod. A pressure column is movably connected to the lower end of the ball seat rod, and a pressure plate is installed at the lower end of the pressure column.

[0005] This patented method involves clamping automotive parts to facilitate machining of their outer surfaces and allows for rapid rotation of the parts, enabling machining of various components. However, it struggles to guarantee effective clamping for automotive parts of different shapes and can even damage them, necessitating the replacement of appropriate fixtures. This, in turn, impacts the efficiency of strength testing for automotive parts. Utility Model Content

[0006] To address the aforementioned issues, this utility model provides a fixture for strength testing of automotive parts, which can be adapted to automotive parts of different shapes, effectively preventing damage to the parts from the vehicle during clamping and ensuring the efficiency of automotive parts strength testing.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A fixture for strength testing of automotive parts includes an operating table with clamping housings at both ends of the upper part of the operating table. One clamping housing is connected to an adjustment component, and the other clamping housing is connected to the operating table. The clamping box has an internal cavity, and a clamping assembly is installed inside the cavity. The clamping assembly includes a slide cylinder, a clamping rod, a rubber sleeve, a sliding plate, and a spring. One end of the slide cylinder is connected to the inner wall of the clamping box, and a spring is installed inside the slide cylinder. One end of the spring is connected to the inner wall of the slide cylinder, and the other end of the slide cylinder is connected to one end of the sliding plate. The other end of the sliding plate is connected to one end of the clamping rod.

[0008] As a further technical solution, several clamping components are arranged at intervals, and the clamping rod of the clamping component penetrates through the side wall of the clamping box.

[0009] As a further technical solution, the other end face of the clamping rod is a semi-cylindrical head, and a rubber sleeve is provided at the other end of the clamping rod, with the clamping rod and the rubber sleeve connected.

[0010] As a further technical solution, the adjustment component includes a connecting frame, on which a motor is mounted, and the output end of the motor is connected to a double-ended threaded rod.

[0011] As a further technical solution, sliders are provided at both ends of the double-ended threaded rod, one end of the slider is hinged to one end of the adjusting plate, and the other end of the adjusting plate is hinged to the clamping box.

[0012] As a further technical solution, the clamping box has two connecting blocks on both sides, one end of which is provided with a T-shaped block, and one end of the T-shaped block is connected to the connecting block; the other end of the T-shaped block passes through the connecting frame.

[0013] As a further technical solution, the lower end of the connecting frame is fixedly connected to the operating table, and the T-shaped block is slidably connected to the connecting frame.

[0014] As a further technical solution, a sliding rod is provided on the inner side of the connecting frame, the sliding rod passes through the T-shaped block, and the T-shaped block and the sliding rod are slidably connected.

[0015] As a further technical solution, the two ends of the slide rod are fixedly connected to the inner side of the connecting frame.

[0016] As a further technical solution, a base is provided at the lower end of the operating table, and the operating table and the base are fixedly connected; a support leg is provided at the lower end of the base, and the support leg is located at the corner of the base and is fixedly connected to the base.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are: This utility model features a clamping assembly with an elastic structure of spring and slide cylinder. The clamping rod automatically fits the surface of the component under the action of the spring. Combined with the design of the semi-cylindrical head and rubber sleeve, it can evenly distribute the clamping force, avoid stress concentration and damage to the component, and ensure clamping stability through elastic compensation. It is suitable for dynamic load requirements in high-strength testing.

[0018] This invention features an adjustment component that uses a motor-driven double-ended threaded rod to quickly adjust the distance between the two clamping boxes. Combined with a hinged adjustment plate, it allows for flexible changes in the clamping range, adapting to automotive parts of different shapes and sizes. This eliminates the need for frequent fixture changes, significantly shortens test preparation time, and improves the efficiency of strength testing for automotive parts. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0020] Figure 1 This is a top sectional perspective view of the double-ended threaded rod of this utility model; Figure 2 This is a perspective view of the overall main view of this utility model; Figure 3 This is a left perspective view of the double-ended threaded rod of this utility model; Figure 4 This is a front sectional perspective view of the skateboard of this utility model; Figure 5 This utility model Figure 4 Enlarged 3D view of area A in the middle.

[0021] In the diagram: 1. Base; 2. Support leg; 3. Operating table; 4. Clamping box; 50. Adjustment component; 501. Connecting frame; 502. Motor; 503. Double-ended threaded rod; 504. Slider; 505. Adjustment plate; 506. T-block; 507. Connecting block; 508. Slide rod; 509. Connecting frame; 51. Clamping component; 511. Slide cylinder; 512. Clamping rod; 513. Rubber sleeve; 514. Slide plate; 515. Spring. Detailed Implementation

[0022] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0023] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a fixture for strength testing of automotive parts, such as... Figure 1 , Figure 2 as well as Figure 5 As shown, it includes an operating table 3, with clamping boxes 4 at both ends of the upper part of the operating table 3. One clamping box 4 is connected to the adjustment component 50, and the other clamping box 4 is connected to the operating table 3. The clamping box 4 has an internal cavity, and a clamping assembly 51 is installed inside the cavity. The clamping assembly 51 includes a slide cylinder 511, a clamping rod 512, a rubber sleeve 513, a sliding plate 514, and a spring 515. One end of the slide cylinder 511 is connected to the inner wall of the clamping box 4. The spring 515 is installed inside the slide cylinder 511. One end of the spring 515 is connected to the inner wall of the slide cylinder 511. The other end of the slide cylinder 511 is connected to one end of the sliding plate 514. The other end of the sliding plate 514 is connected to one end of the clamping rod 512.

[0024] Specifically, the multiple spring-loaded clamping rods 512 inside the clamping housing 4 can extend and retract autonomously along the slide cylinder 511 according to the concave and convex shapes of the component surface. Protruding parts compress the clamping rods 512, causing the springs 515 to compress, while recessed parts are pushed out by the elastic force of the springs 515. Through curved surface contact to adapt to irregular contours such as arcs and slopes, the clamping force is evenly distributed across the component surface, avoiding localized stress concentration. The elastic structure of the springs 515 and slide cylinder 511 in the clamping assembly 51, along with the automatic contact of the clamping rods 512 with the component surface under the action of the springs 515, combined with the design of the semi-cylindrical head and rubber sleeve 513, not only evenly distributes the clamping force, preventing stress concentration from damaging the component, but also ensures clamping stability through elastic compensation, making it suitable for dynamic load requirements in high-strength testing.

[0025] Several clamping components 51 are spaced apart, and the clamping rods 512 of the clamping components 51 penetrate through the side wall of the clamping box 4. The other end face of the clamping rod 512 is a semi-cylindrical head, and a rubber sleeve 513 is provided at the other end of the clamping rod 512. The clamping rod 512 and the rubber sleeve 513 are connected.

[0026] Specifically, the rubber sleeve 513 on the clamping rod 512 has an elastic buffering effect, which can prevent direct friction and compression between the metal and the surface of the parts, and protect the precision structure of the automotive parts; the elastic extension and contraction of the spring 515 can also buffer the small deformation of the parts during the test, avoid secondary damage caused by rigid clamping, and compensate for displacement in real time during dynamic load tests such as tension and compression, ensuring that the rubber sleeve 513 is always in close contact and preventing loosening and slippage.

[0027] like Figure 3 and Figure 4As shown, the adjustment assembly 50 includes a connecting frame 501, on which a motor 502 is mounted. The output end of the motor 502 is connected to a double-ended threaded rod 503. Slider 504s are mounted at both ends of the double-ended threaded rod 503. One end of the slider 504 is hinged to one end of the adjustment plate 505, and the other end of the adjustment plate 505 is hinged to the clamping box 4.

[0028] Specifically, the threaded end face of the double-ended threaded rod 503 extends through the front side of the two sliders 504 to the rear side of the two sliders 504. The bottom surface of the two sliders 504 is slidably connected to the top surface of the operating table 3. The rear end face of the double-ended threaded rod 503 is rotatably connected to the inner side of the connecting frame 501 through the bearing seat. Two adjusting plates 505 are provided between the clamping box 4 and the two sliders 504. The left and right end faces of the adjusting plates 505 are respectively hinged to the right side of the slider 504 and the left side of the left clamping box 4.

[0029] The threads at both ends of the double-ended screw turn in opposite directions. The motor 502 drives the double-ended screw to rotate, causing the two sliders 504 to move in opposite directions. That is, the motor 502 drives the double-ended threaded rod 503 to rotate, which in turn causes the two sliders 504 to move synchronously closer or further away from the top surface of the operating table 3. By changing the angle of the hinged adjustment plate 505, the lateral movement of the sliders 504 is converted into the left-right translation of the left clamping box 4, achieving continuous adjustment of the distance between the two clamping boxes 4 to accommodate automotive parts of different sizes. Mechanical adjustment can cover parts of various specifications, avoiding frequent disassembly and fixture replacement. Using the motor 502 of the adjustment component 50 to drive the double-ended threaded rod 503, the distance between the two clamping boxes 4 can be quickly adjusted. Combined with the hinged adjustment plate 505, the clamping range can be flexibly changed to adapt to automotive parts of different shapes and sizes, eliminating the need for frequent fixture changes, significantly shortening test preparation time, and improving the efficiency of strength testing for automotive parts.

[0030] The clamping housing 4 is supported by connecting blocks 507 on both sides. A T-shaped block 506 is provided at one end of each connecting block 507, and one end of the T-shaped block 506 is connected to the connecting block 507. The other end of the T-shaped block passes through the connecting frame. The lower end of the connecting frame 509 is fixedly connected to the operating table 3, and the T-shaped block 506 is slidably connected to the connecting frame 509. A sliding rod 508 is provided on the inner side of the connecting frame 509, passing through the T-shaped block 506, and the T-shaped block 506 is slidably connected to the sliding rod 508. Both ends of the sliding rod 508 are fixedly connected to the inner surface of the connecting frame 509.

[0031] Specifically, the connecting frame 509 and T-block at the front and rear of the clamping box 4, together with the slide rod 508, form a limiting structure. When the T-block slides along the slide rod 508, it can limit the movement trajectory of the clamping box 4, preventing it from shifting forward or backward or tilting. The threaded engagement between the double-ended threaded rod 503 and the slider 504 has self-locking properties. After the motor 502 stops, the position of the slider 504 remains fixed, ensuring that the spacing between the clamping boxes 4 is stable, avoiding data deviations caused by loose clamping during component testing, and improving the accuracy of test results.

[0032] A base 1 is installed at the lower end of the operating platform 3, and the operating platform 3 and the base 1 are fixedly connected. A support leg 2 is installed at the lower end of the base 1, and the support leg 2 is located at the corner of the base 1 and is fixedly connected to the base 1. Specifically, the operating platform 3 is supported by the base 1 and the support leg 2 to ensure the stability of the testing process.

[0033] How to use fixtures and tooling: Gently place the automotive component to be tested at the center of the top surface of the operating table 3, and adjust the component's orientation so that the part to be tested faces the direction of force application from the testing equipment, avoiding premature contact between the component and the clamping housing 4. Turn on the power to the motor 502 and activate the adjustment assembly 50 via the control switch: the motor 502 drives the double-threaded rod 503 to rotate. Because the threads at both ends of the double-threaded rod 503 rotate in opposite directions, the two sliders 504 move synchronously closer together along the top surface of the operating table 3. The sliders 504 cause the hinged adjustment plate 505 to change angle, converting the lateral movement into a rightward translation of the left clamping housing 4, gradually reducing the distance between the two clamping housings 4.

[0034] As the clamping housing 4 approaches the component, the rubber sleeve 513 at the right end of the clamping rod 512 first contacts the surface of the component. For protruding parts of the component, the clamping rod 512 is compressed and retracts to the left along the slide cylinder 511, and the slide plate 514 compresses the spring 515; for recessed parts, the spring 515 pushes the slide plate 514, causing the clamping rod 512 to extend to the right, so that the rubber sleeve 513 fits tightly against the recessed area. Multiple clamping components 51 achieve comprehensive wrap-around clamping of irregularly shaped components through elastic self-adaptation.

[0035] When it is observed that all rubber sleeves 513 of the contacting parts are in a closed state and the parts are not shaking or shifting, turn off the motor 502. Utilizing the self-locking properties of the threads of the double-threaded rod 503 and the slider 504, the spacing of the clamping housing 4 is automatically fixed, completing the clamping and positioning of the parts. At this point, the parts can be gently pushed to confirm the stability of the clamping.

[0036] After the test is completed, reverse the start motor 502, driving the double-ended threaded rod 503 to reverse, causing the two sliders 504 to move synchronously away from the top surface of the operating table 3. The adjusting plate 505 drives the left clamping box 4 to move to the left, and the clamping rod 512 gradually returns to its original position under the elastic force of the spring 515, causing the rubber sleeve 513 to disengage from the surface of the part. Once the distance between the clamping boxes 4 has increased to a size sufficient for safe removal of the part, turn off the motor 502 and remove the tested part.

[0037] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A fixture for strength testing of automotive parts, characterized in that, It includes an operating table, with clamping boxes at both ends of the upper part of the operating table. One clamping box is connected to an adjustment component, and the other clamping box is connected to the operating table. The clamping box has an internal cavity, and a clamping assembly is installed inside the cavity. The clamping assembly includes a slide cylinder, a clamping rod, a rubber sleeve, a sliding plate, and a spring. One end of the slide cylinder is connected to the inner wall of the clamping box, and a spring is installed inside the slide cylinder. One end of the spring is connected to the inner wall of the slide cylinder, and the other end of the slide cylinder is connected to one end of the sliding plate. The other end of the sliding plate is connected to one end of the clamping rod.

2. The fixture for strength testing of automotive parts as described in claim 1, characterized in that, Several clamping components are spaced apart, and the clamping rods of the clamping components penetrate the side wall of the clamping box.

3. The fixture for strength testing of automotive parts as described in claim 1, characterized in that, The other end of the clamping rod is a semi-cylindrical head, and a rubber sleeve is provided at the other end of the clamping rod. The clamping rod and the rubber sleeve are connected.

4. The fixture for strength testing of automotive parts as described in claim 1, characterized in that, The adjustment assembly includes a connecting frame, on which a motor is mounted, and the output end of the motor is connected to a double-threaded rod.

5. The fixture for strength testing of automotive parts as described in claim 4, characterized in that, The double-ended threaded rod is provided with sliders at both ends. One end of the slider is hinged to one end of the adjusting plate, and the other end of the adjusting plate is hinged to the clamping box.

6. The fixture for strength testing of automotive parts as described in claim 5, characterized in that, The clamping box has two connecting blocks on both sides, one end of which is provided with a T-shaped block and one end of which is connected to the connecting block; the other end of the T-shaped block passes through the connecting frame.

7. A fixture for strength testing of automotive parts as described in claim 6, characterized in that, The lower end of the connecting frame is fixedly connected to the operating table, and the T-shaped block is slidably connected to the connecting frame.

8. A fixture for strength testing of automotive parts as described in claim 7, characterized in that, A sliding rod is provided on the inner side of the connecting frame, the sliding rod passes through the T-shaped block, and the T-shaped block and the sliding rod are slidably connected.

9. A fixture for strength testing of automotive parts as described in claim 8, characterized in that, The two ends of the slide rod are fixedly connected to the inner side of the connecting frame.

10. A fixture for strength testing of automotive parts as described in claim 1, characterized in that, The lower end of the operating table is provided with a base, and the operating table and the base are fixedly connected; the lower end of the base is provided with a support leg, which is located at the corner of the base and is fixedly connected to the base.

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