Positioning jig for strength detection

Abstract

The utility model relates to the technical field of positioning jigs, and discloses a positioning jig for strength detection, which comprises a working table, a movable groove is arranged on the outer wall of the working table, a rotating motor is mounted on the outer wall of the working table, a screw rod is connected to the outer wall of the rotating motor, a bidirectional thread is arranged on the outer wall of the screw rod, and a positioning groove is formed in the outer wall of the working table. The outer wall of the lead screw is movably sleeved with a sliding block, the outer wall of the sliding block is provided with an inner groove, the inner wall of the sliding block is connected with a stud, the outer wall of the stud is sleeved with a pressing strip, the outer wall of the pressing strip is provided with a cushion layer, the outer wall of the stud is sleeved with an extruder, and the outer wall of the extruder is connected with a hand rotating rod. By arranging the die-casting head, the automobile structural part, the telescopic motor, the rubber pad and other structures, the angle and placement of the automobile structural part on the device are positioned and fixed, then the die-casting head is matched to complete indentation or compression and other tests, and the hardness value of a material is obtained.

Description

Technical Field

[0001] This utility model relates to the field of positioning fixture technology, specifically a positioning fixture for strength testing. Background Technology

[0002] The existing device uses an adjusting seat, guide plate, guide groove, and motor. Starting the motor drives the adjusting seat to rotate along the guide plate, which in turn drives the second structural component to rotate. The device tests the torsional resistance at the connection between the first and second structural components. However, in automotive structural components made of metal, attention must be paid to the hardness and compressive strength coefficient of the metal material to avoid the hardness value of the automotive structural component not meeting the standard. In addition, before the strength test of the automotive structural component, it is necessary to position and fix the automotive structural components with inconsistent shapes vertically or horizontally to avoid sudden displacement and misalignment during the strength test. Therefore, a positioning fixture for strength testing is needed to solve the above problems. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a positioning fixture for strength testing, which solves the problems mentioned in the background.

[0004] This utility model provides the following technical solution: a positioning fixture for strength testing, comprising: a worktable, the outer wall of which has a movable groove, a rotary motor mounted on the outer wall of the worktable, a lead screw connected to the outer wall of the rotary motor, the lead screw having a bidirectional thread on its outer wall, a slider movably sleeved on the outer wall of the lead screw, an inner groove on the outer wall of the slider, a stud connected to the inner wall of the slider, a pressure strip sleeved on the outer wall of the stud, a pad layer on the outer wall of the pressure strip, an extruder sleeved on the outer wall of the stud, a hand crank connected to the outer wall of the extruder, a placement platform mounted on the outer wall of the worktable, an automotive structural component placed on the outer wall of the placement platform, a telescopic motor mounted on the outer wall of the worktable, a telescopic cylinder connected to the outer wall of the telescopic motor, a rubber pad connected to the outer wall of the telescopic cylinder, a fixed frame connected to the outer wall of the worktable, and a compressor mounted on the inner wall of the fixed frame.

[0005] Preferably, the number of movable slots is four, and the four movable slots are symmetrically arranged on the outer wall of the worktable.

[0006] Preferably, the bidirectional thread is bidirectionally arranged on the outer wall of the lead screw, and the outer wall of the bidirectional thread meshes with the inner wall of the slider.

[0007] Preferably, the pad is made of soft rubber material, and the pad is disposed on the outer wall of the pressure strip on the side facing the automotive structural component.

[0008] Preferably, the inner wall of the extruder is provided with internal threads, and the extruder is rotated on the outer wall of the stud by a hand-operated lever.

[0009] Preferably, the automotive structural component is placed in the middle of the placement platform, and the main body of the automotive structural component is made of metal material.

[0010] Preferably, the power output end of the telescopic motor is connected to the telescopic cylinder, and a rubber pad is connected to the end of the telescopic cylinder away from the telescopic motor.

[0011] Preferably, the outer wall of the compressor is connected to a die-casting head, and the die-casting head is positioned directly above the automotive structural component.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This strength testing positioning fixture, by setting up a pressure bar, an extruder, a slider, a lead screw, etc., allows the automotive structural component on the device to be placed on the outer wall of the placement platform. The lead screw is rotated by a rotary motor, and after the slider is rotated to adjust its position, the extruder is manually rotated to cause the pressure bar to press down on the top outer wall of the automotive structural component, thereby pressing and fixing the two sides of the automotive structural component on the device.

[0014] 2. This strength testing positioning fixture, by setting up a die-casting head, automotive structural parts, telescopic motor, rubber pads, etc., allows the die-casting head on the device to perform strength testing on the automotive structural parts from top to bottom. First, the telescopic motor pushes the rubber pads to symmetrically press against the outer walls of both sides of the automotive structural parts, thereby fixing the angle and placement of the automotive structural parts on the device. Then, in conjunction with the die-casting head, it completes indentation or compression tests to obtain the hardness value of the material. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the right-side cross-sectional structure of the present invention;

[0018] Figure 4 This is a schematic diagram of the bidirectional threaded structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the automotive structural component of this utility model.

[0020] In the diagram: 1. Workbench; 2. Movable groove; 3. Rotary motor; 4. Lead screw; 5. Bidirectional thread; 6. Slider; 7. Inner groove; 8. Stud; 9. Pressure bar; 10. Pad layer; 11. Extruder; 12. Hand crank; 13. Placement platform; 14. Automotive structural component; 15. Telescopic motor; 16. Telescopic cylinder; 17. Rubber pad; 18. Fixing frame; 19. Compressor; 20. Die-casting head. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 A positioning fixture for strength testing includes: a workbench 1, an movable groove 2 on the outer wall of the workbench 1, a rotary motor 3 mounted on the outer wall of the workbench 1, a lead screw 4 connected to the outer wall of the rotary motor 3, a bidirectional thread 5 on the outer wall of the lead screw 4, a slider 6 movably sleeved on the outer wall of the lead screw 4, an inner groove 7 on the outer wall of the slider 6, a stud 8 connected to the inner wall of the slider 6, a pressure strip 9 sleeved on the outer wall of the stud 8, a pad 10 on the outer wall of the pressure strip 9, an extruder 11 sleeved on the outer wall of the stud 8, a hand crank 12 connected to the outer wall of the extruder 11, a placement platform 13 mounted on the outer wall of the workbench 1, an automotive structural component 14 placed on the outer wall of the placement platform 13, a telescopic motor 15 mounted on the outer wall of the workbench 1, a telescopic cylinder 16 connected to the outer wall of the telescopic motor 15, a rubber pad 17 connected to the outer wall of the telescopic cylinder 16, a fixed frame 18 connected to the outer wall of the workbench 1, and a compressor 19 mounted on the inner wall of the fixed frame 18.

[0023] The number of movable slots 2 is four, and the four movable slots 2 are symmetrically arranged on the outer wall of the workbench 1. The four movable slots 2 on the device are symmetrically arranged on the outer wall of the workbench 1, so that the slider 6 on the device carries the stud 8 and slides along the inner wall of the movable slot 2, so that the slider 6 on the device drives the pressure strip 9 to move synchronously when it moves.

[0024] The bidirectional thread 5 is bidirectionally arranged on the outer wall of the lead screw 4, and the outer wall of the bidirectional thread 5 meshes with the inner wall of the slider 6. By bidirectionally arranging the bidirectional thread 5 on the outer wall of the lead screw 4, the two sides of the lead screw 4 on the device are symmetrically arranged with bidirectional threads 5 in different directions, and the position of the bidirectional thread 5 corresponds to the slot of the movable groove 2, so that the slider 6 on the device meshes with the bidirectional thread 5 and moves along the outer wall of the lead screw 4.

[0025] The pad 10 is made of soft rubber and is located on the outer wall of the pressure strip 9 facing the automotive structural component 14. The pad 10 is made of soft rubber, which gives it wear resistance and excellent elasticity. When the pressure strip 9 presses down on the automotive structural component 14, the pressure strip 9 carries the pad 10 to contact the surface of the automotive structural component 14, thereby pressing the two sides of the automotive structural component 14 with the pad 10.

[0026] The inner wall of the extruder 11 is provided with internal threads, and the extruder 11 is rotated on the outer wall of the stud 8 by the hand-rotating rod 12. Because the inner wall of the extruder 11 is provided with internal threads, the extruder 11 is rotated along the outer wall of the stud 8 and gradually moves downward when the hand-rotating rod 12 is manually rotated. As the extruder 11 moves downward, it passes through the pressure bar 9, which in turn causes the pressure bar 9 to press downward on both sides of the automotive structural component 14.

[0027] The vehicle structural component 14 is placed in the middle of the placement platform 13. The main body of the vehicle structural component 14 is made of metal. By placing the vehicle structural component 14 in the middle of the placement platform 13, when the vehicle structural component 14 needs to be tested for strength, it is first placed in the middle of the placement platform 13, which facilitates the fixation of the vehicle structural component 14 and waits for the die-casting head 20 to test the strength of the vehicle structural component 14.

[0028] The power output end of the telescopic motor 15 is connected to the telescopic cylinder 16, and a rubber pad 17 is connected to the end of the telescopic cylinder 16 away from the telescopic motor 15. By connecting the power output end of the telescopic motor 15 to the telescopic cylinder 16, when the telescopic motor 15 outputs telescopic power, the telescopic cylinder 16 brings the rubber pad 17 close to the car structural component 14, thereby pressing the rubber pads 17 on both sides of the device against the outer walls of the car structural component 14, thereby fixing the angle of the car structural component 14.

[0029] The compressor 19 has a die-casting head 20 connected to its outer wall, and the die-casting head 20 is positioned directly above the automotive structural component 14. By connecting the die-casting head 20 to the outer wall of the compressor 19, the compressor 19 controls the die-casting head 20 to actively extend downward and approach the automotive structural component 14. When the die-casting head 20 presses against the outer wall of the automotive structural component 14, the hardness of the material of the automotive structural component 14 is tested.

[0030] The working principle is as follows: First, by setting up structures such as pressure bar 9, extruder 11, slider 6, and lead screw 4, the automotive structural component 14 on the device is placed on the outer wall of the placement platform 13. The rotary motor 3 controls the lead screw 4 to rotate. After rotating and adjusting the position of slider 6, the extruder 11 is manually rotated, causing pressure bar 9 to press down on the top outer wall of the automotive structural component 14, thereby pressing and fixing both sides of the automotive structural component 14 on the device. Then, by setting up structures such as die casting head 20, automotive structural component 14, telescopic motor 15, and rubber pad 17, when the die casting head 20 performs strength testing on the automotive structural component 14 from top to bottom, the telescopic motor 15 pushes the rubber pad 17 to symmetrically press against the outer walls of both sides of the automotive structural component 14, thereby fixing the angle and placement of the automotive structural component 14 on the device. Then, in conjunction with the die casting head 20, it completes indentation or compression tests to obtain the hardness value of the material.

[0031] 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 positioning fixture for strength testing, characterized in that, include: A workbench (1) has a movable groove (2) on its outer wall. A rotary motor (3) is installed on the outer wall of the workbench (1). A lead screw (4) is connected to the outer wall of the rotary motor (3). A bidirectional thread (5) is provided on the outer wall of the lead screw (4). A slider (6) is movably sleeved on the outer wall of the lead screw (4). An inner groove (7) is provided on the outer wall of the slider (6). A stud (8) is connected to the inner wall of the slider (6). A pressure strip (9) is sleeved on the outer wall of the stud (8). A pad (10) is provided on the outer wall of the pressure strip (9). An extruder (11) is fitted onto the outer wall of the extruder (11), a hand lever (12) is connected to the outer wall of the workbench (1), a placement platform (13) is installed on the outer wall of the placement platform (13), an automotive structural component (14) is placed on the outer wall of the placement platform (13), a telescopic motor (15) is installed on the outer wall of the workbench (1), a telescopic cylinder (16) is connected to the outer wall of the telescopic motor (15), a rubber pad (17) is connected to the outer wall of the telescopic cylinder (16), a fixing frame (18) is connected to the outer wall of the workbench (1), and a compressor (19) is installed on the inner wall of the fixing frame (18).

2. The positioning fixture for strength testing according to claim 1, characterized in that, The number of movable slots (2) is four, and the four movable slots (2) are symmetrically arranged on the outer wall of the workbench (1).

3. The positioning fixture for strength testing according to claim 1, characterized in that, The bidirectional thread (5) is bidirectionally arranged on the outer wall of the lead screw (4), and the outer wall of the bidirectional thread (5) meshes with the inner wall of the slider (6).

4. A positioning fixture for strength testing according to claim 1, characterized in that, The pad (10) is made of soft rubber material and is disposed on the outer wall of the pressure strip (9) facing the side of the vehicle structure (14).

5. A positioning fixture for strength testing according to claim 1, characterized in that, The inner wall of the extruder (11) is provided with an internal thread, and the extruder (11) is rotated on the outer wall of the stud (8) by a hand-operated rod (12).

6. A positioning fixture for strength testing according to claim 1, characterized in that, The automotive structural component (14) is placed in the middle of the placement platform (13), and the main body of the automotive structural component (14) is made of metal material.

7. A positioning fixture for strength testing according to claim 1, characterized in that, The power output end of the telescopic motor (15) is connected to the telescopic cylinder (16), and a rubber pad (17) is connected to the end of the telescopic cylinder (16) away from the telescopic motor (15).

8. A positioning fixture for strength testing according to claim 1, characterized in that, The compressor (19) has a die-casting head (20) connected to its outer wall, and the die-casting head (20) is positioned directly above the automotive structural component (14).

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