Clamp for testing compressive strength of automobile sheet metal part

Abstract

The utility model relates to the technical field of sheet metal part detection, and discloses an automobile sheet metal part compressive strength test fixture which comprises a shell, a lining pipe frame is connected to the top end of the inner wall of the shell, a partition plate is connected between the outer surface of the lining pipe frame and the inner side of the shell, and a driving motor is connected to one side of the inner wall of the lining pipe frame. The output end of the driving motor is connected with a lead screw, one end of the lead screw is connected with a traction frame, a plurality of connecting rods are rotationally arranged on the outer ring of the traction frame, and the bottom end of the partition plate is connected with a plurality of sets of sliding rods. Through the arrangement of the multiple clamping mechanisms and the extrusion mechanisms, sheet metal parts in special shapes can be effectively limited and fixed, the application range is effectively widened, meanwhile, the top faces of the sheet metal parts are pressed downwards through the lower frame clamping plates, the bottom faces of the sheet metal parts are jacked upwards through the extrusion mechanisms, the fixing effect is guaranteed, the overall fixing mode of the device is automatic, and the production efficiency is improved. Operation is easy, using is convenient, manpower consumption is greatly reduced, and the using requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal testing technology, specifically to a fixture for testing the compressive strength of automotive sheet metal parts. Background Technology

[0002] When testing the compressive strength of automotive sheet metal parts, fixtures are typically used for fixation. The main function of the fixtures is to ensure the stability of the sample during testing, preventing it from slipping or falling off, thereby ensuring the accuracy and reliability of the test data. During testing, the fixtures are usually fixed to the edge of the sheet metal, and then pressure is applied to the sheet metal locally through a top mount. This design ensures that the pressure is evenly transmitted to the sample and avoids test errors caused by sample movement. However, current automotive sheet metal parts come in various shapes, and the clamping methods and positions of current fixtures are fixed and singular. When fixing sheet metal parts with special shapes, it is necessary to change to a corresponding fixture, which increases the testing time and reduces efficiency, failing to meet the application requirements.

[0003] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0004] The purpose of this utility model is to provide a test fixture for the compressive strength of automotive sheet metal parts, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a housing, an inner lining tube frame connected to the top of the inner wall of the housing, a partition plate connected between the outer surface of the inner lining tube frame and the inner side of the housing, a drive motor connected to one side of the inner wall of the inner lining tube frame, a lead screw connected to the output end of the drive motor, a traction frame connected to one end of the lead screw, multiple connecting rods rotatably arranged on the outer ring of the traction frame, multiple sets of sliding rods connected to the bottom of the partition plate, a pushing block slidably arranged at one end of each set of sliding rods, a connecting rod rotatably connected to the pushing block, a clamping mechanism slidably arranged between the partition plate and the top of the housing, a placement platform connected to the top of the housing, sliding holes opened at the top of the placement platform, and a pressing mechanism slidably arranged in the sliding hole at the top of the placement platform.

[0006] Preferably, the clamping mechanism includes a connecting frame slidably disposed between the housing and the partition plate, a clamping cylinder is connected to the bottom end of the connecting frame, the output end of the clamping cylinder passes through the connecting frame and is connected to a lower frame clamping plate, and the output end of the clamping cylinder is connected to the extrusion mechanism.

[0007] Preferably, the extrusion mechanism includes a connecting kit slidably disposed at the output end of the clamping cylinder, an extension arm is connected to one side of the connecting kit, a push cylinder is connected to the bottom end of one side of the extension arm, a ball head is connected to the output end of the push cylinder, and an extrusion plate is rotatably disposed at the top of the ball head.

[0008] Preferably, a first connecting block and a second connecting block are connected to one side of the connecting frame, a traction spring is connected between one side of the first connecting block and the inner lining tube frame, and one side of the pushing block abuts against the second connecting block.

[0009] Preferably, a horizontal plate is connected to one side of the inner wall of the inner lining tube frame, the drive motor is fixedly mounted at the bottom end of the horizontal plate, a guide rod is connected to the bottom end of the horizontal plate, and the traction frame is slidably connected to the guide rod.

[0010] Preferably, a silicone anti-slip layer is provided at the top of the extrusion plate.

[0011] In summary, this application includes the following beneficial technical effects:

[0012] With multiple clamping and pressing mechanisms, special-shaped sheet metal parts can be effectively limited and fixed, thus expanding the applicability. At the same time, the lower clamping plate presses down on the top surface of the sheet metal part, and the pressing mechanism pushes up on the bottom surface of the sheet metal part to ensure the fixing effect. The overall fixing method of the device is automated, simple to operate, and convenient to use, which greatly reduces manpower consumption and meets the needs of use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a test fixture for the compressive strength of automotive sheet metal parts according to the present invention;

[0014] Figure 2 This is a side sectional view of a fixture for testing the compressive strength of automotive sheet metal parts according to the present invention.

[0015] Figure 3 for Figure 2 Enlarged structural diagram of section A;

[0016] Figure 4 This is a partial structural diagram of a fixture for testing the compressive strength of automotive sheet metal parts according to the present invention.

[0017] In the diagram: 1. Shell; 2. Inner liner tube frame; 3. Partition plate; 4. Drive motor; 5. Lead screw; 6. Traction frame; 7. Connecting rod; 8. Slide rod; 9. Push block; 10. Connecting frame; 101. First connecting block; 102. Second connecting block; 11. Clamping cylinder; 12. Placement platform; 13. Lower frame clamping plate; 14. Connecting kit; 15. Extension arm; 16. Push cylinder; 17. Ball head; 18. Extrusion plate; 19. Guide rod; 20. Sliding hole; 21. Traction spring. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-4 This utility model provides a technical solution: including a shell 1, an inner lining tube frame 2 connected to the top of the inner wall of the shell 1, a partition 3 connected between the outer surface of the inner lining tube frame 2 and the inner side of the shell 1, a drive motor 4 connected to one side of the inner wall of the inner lining tube frame 2, a lead screw 5 connected to the output end of the drive motor 4, a traction frame 6 connected to one end of the lead screw 5, a plurality of connecting rods 7 rotatably arranged on the outer ring of the traction frame 6, a plurality of sliding rods 8 connected to the bottom of the partition 3, a push block 9 slidably arranged at one end of each sliding rod 8, a connecting rod 7 rotatably connected to the push block 9, a clamping mechanism slidably arranged between the partition 3 and the top of the shell 1, a placement platform 12 connected to the top of the shell 1, a sliding hole 20 opened at the top of the placement platform 12, the shell 1 and the partition 3, and a squeezing mechanism slidably arranged in the sliding hole 20 at the top of the placement platform 12;

[0020] Reference Figure 1 and Figure 4As shown, the clamping mechanism includes a connecting frame 10 slidably disposed between the housing 1 and the partition 3. A clamping cylinder 11 is connected to the bottom end of the connecting frame 10. The output end of the clamping cylinder 11 passes through the connecting frame 10 and is connected to a lower clamping plate 13. The output end of the clamping cylinder 11 is connected to a pressing mechanism. A first connecting block 101 and a second connecting block 102 are connected to one side of the connecting frame 10. A traction spring 21 is connected between one side of the first connecting block 101 and the inner liner tube frame 2. A pushing block 9 is connected to... The second connecting block 102 abuts against each other, placing the sheet metal part above the placement platform 12. Then, the drive motor 4 starts and drives the lead screw 5 to rotate, thereby driving the traction frame 6 to move down. Through the connecting rod 7, the push block 9 moves along the slide rod 8. Then, the elasticity of the traction spring 21, through its connection with the first connecting block 101, drives the connecting frame 10 to move, so that each clamping mechanism abuts against the edge of the sheet metal part. The clamping cylinder 11 retracts and drives the lower frame clamping plate 13 to move down, pressing down and fixing the sheet metal part placed on the placement platform 12.

[0021] Reference Figure 3 and Figure 4 The extrusion mechanism includes a connecting kit 14 slidably disposed at the output end of the clamping cylinder 11. An extension arm 15 is connected to one side of the connecting kit 14, and a push cylinder 16 is connected to the bottom end of one side of the extension arm 15. A ball head 17 is connected to the output end of the push cylinder 16, and an extrusion plate 18 is rotatably disposed at the top of the ball head 17. While the extrusion mechanism moves and abuts against the edge of the sheet metal part, the extrusion mechanism moves along with the extrusion mechanism via 14. When 13 presses down on the sheet metal part, 16 extends and pushes 18 upward to abut against the other side of the sheet metal part. The setting of 17 can satisfy the multi-angle rotation of 18, which is suitable for fitting with the bottom surface of sheet metal parts with different curved surfaces, further ensuring the fixing effect. A silicone anti-slip layer is connected to the top of the extrusion plate 18 to ensure the fitting effect and the stability of the fitting.

[0022] Reference Figure 2 As shown, a horizontal plate is connected to one side of the inner wall of the inner lining tube frame 2. The drive motor 4 is fixedly installed at the bottom end of the horizontal plate. A guide rod 19 is connected to the bottom end of the horizontal plate. The traction frame 6 is slidably connected to the guide rod 19. When the lead screw 5 drives the traction frame 6 to move up and down, the guide rod 19 can improve the stability of the movement of the traction frame 6.

[0023] The implementation principle of this application is as follows: When using this utility model, the sheet metal part is placed on the placement platform 12, and then the drive motor 4 is started. The rotation of the lead screw 5 drives the traction frame 6 to move down, and the connecting rod 7 drives the push block 9 to move, thereby losing its limiting effect on the second connecting block 102. The traction spring 21 will pull the first connecting block 101 through its own rebound force, thereby pulling the entire clamping mechanism to move closer to the edge of the sheet metal part. Since each clamping mechanism is independent, it can be applied to sheet metal parts of different shapes. After the clamping mechanism is close to the edge of the sheet metal part, it presses down from above the edge of the sheet metal part, and then the extrusion mechanism pushes upward, pushing out and fixing from the bottom surface of the sheet metal part, further fixing the sheet metal part, which facilitates the pressure resistance test.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for testing the compressive strength of automotive sheet metal parts, comprising a housing (1), characterized in that: An inner lining tube frame (2) is connected to the top of the inner wall of the shell (1). A partition plate (3) is connected between the outer surface of the inner lining tube frame (2) and the inner side of the shell (1). A drive motor (4) is connected to one side of the inner wall of the inner lining tube frame (2). A lead screw (5) is connected to the output end of the drive motor (4). A traction frame (6) is connected to one end of the lead screw (5). Multiple connecting rods (7) are rotatably arranged on the outer ring of the traction frame (6). A partition plate (3) is connected to the bottom end of the partition plate (3). Multiple sets of sliding rods (8), each set of sliding rods (8) has a push block (9) slidably arranged at one end, and one end of the connecting rod (7) is rotatably connected to the push block (9). A clamping mechanism is slidably arranged between the partition (3) and the top of the housing (1). A placement platform (12) is connected to the top of the housing (1). A sliding hole (20) is opened at the top of the placement platform (12), the housing (1) and the partition (3). A squeezing mechanism is slidably arranged in the sliding hole (20) at the top of the placement platform (12).

2. The automotive sheet metal parts compressive strength testing fixture according to claim 1, characterized in that: The clamping mechanism includes a connecting frame (10) slidably disposed between the housing (1) and the partition (3). A clamping cylinder (11) is connected to the bottom end of the connecting frame (10). The output end of the clamping cylinder (11) passes through the connecting frame (10) and is connected to a lower frame clamping plate (13). The output end of the clamping cylinder (11) is connected to the extrusion mechanism.

3. The automotive sheet metal part compressive strength testing fixture according to claim 2, characterized in that: The extrusion mechanism includes a connecting kit (14) slidably disposed at the output end of the clamping cylinder (11). An extension arm (15) is connected to one side of the connecting kit (14). A push cylinder (16) is connected to the bottom end of one side of the extension arm (15). A ball head (17) is connected to the output end of the push cylinder (16). An extrusion plate (18) is rotatably disposed at the top of the ball head (17).

4. The automotive sheet metal part compressive strength testing fixture according to claim 3, characterized in that: The connecting frame (10) is connected to a first connecting block (101) and a second connecting block (102) on one side. A traction spring (21) is connected between the first connecting block (101) and the inner lining tube frame (2). The pushing block (9) abuts against the second connecting block (102) on one side.

5. The automotive sheet metal part compressive strength testing fixture according to claim 4, characterized in that: A horizontal plate is connected to one side of the inner wall of the inner lining tube frame (2), the drive motor (4) is fixedly installed at the bottom of the horizontal plate, a guide rod (19) is connected to the bottom of the horizontal plate, and the traction frame (6) is slidably connected to the guide rod (19).

6. The automotive sheet metal part compressive strength testing fixture according to claim 5, characterized in that: A silicone anti-slip layer is provided at the top of the extrusion plate (18).

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