A welding pull-out force testing fixture

Abstract

This utility model discloses a welding pull-out force testing fixture, including a frame, a clamping device, and a positioning module. The clamping device is mounted on the top of the frame, and a detachable positioning module for clamping and positioning the material strip is mounted on the clamping device. The clamping device includes a vise seat, an adjusting rod, a sliding pad, a positioning block, and a stop block. The vise seat has bosses extending upwards at both ends. An adjusting rod is horizontally threaded onto one boss, and a nut is installed on the threaded part of the extended end of the adjusting rod, fixing it into the sliding pad. A set of opposing positioning blocks are mounted on the sliding pad and the other boss. A positioning platform for placing the positioning module is provided on the opposing surfaces of the two positioning blocks, and stop blocks are also installed on the side ends of the two positioning blocks. Through this method, this utility model has a compact structure and ingenious design, enabling rapid positioning and fixing of the material strip. It is detachable and quick-changeable for rapid switching between welding and pull-out force testing programs.

Description

Technical Field

[0001] This utility model relates to the field of testing fixture technology, and in particular to a welding pull-out force testing fixture. Background Technology

[0002] The strip product consists of a metal strip and a pre-injection molded part. After the strip product is processed, two processes are involved: welding and pull-out force testing. The metal strip has three pins with pads. Using the leftmost and rightmost small circles as references, the leftmost pad (pin 1) is welded to the middle pad, and then the middle pad is welded to the rightmost pad (pin 1). After welding, a pull-out force test is required on the welded parts. Figure 1 As shown, both processes require clamping and fixing the strip product and switching to welding equipment and pull-out force testing machine. The common clamping and fixing method requires multiple disassembly and clamping of the strip product, which is cumbersome and inefficient.

[0003] Based on the above defects and shortcomings, it is necessary to improve the existing technology and design a welding pull-out force testing fixture. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a welding pull-out force testing fixture with a compact structure and ingenious design. It can quickly position and fix the material strip, and can be disassembled and quickly replaced to facilitate rapid switching between welding and pull-out force testing programs.

[0005] To solve the above-mentioned technical problems, the present invention provides a welding pull-out force testing fixture, which includes a frame, a clamping device, and a positioning module. The clamping device is installed on the top of the frame, and a detachable positioning module for clamping and positioning the material strip is installed on the clamping device. The clamping device includes a vise seat, an adjusting rod, a sliding pad, a positioning block, and a stop block. The vise seat has bosses extending upward at both ends. An adjusting rod is horizontally threaded to one of the bosses. A nut is installed on the screw part of the extended end of the adjusting rod and is fixed to the sliding pad. A set of opposing positioning blocks are installed on the sliding pad and the other boss. A positioning platform for placing the positioning module is provided on the opposite surface of the two positioning blocks. Stop blocks are also installed on the side ends of the two positioning blocks.

[0006] Preferably, the positioning platform includes a Z-axis reference plane and an X-axis reference plane perpendicular to the Z-axis reference plane, and the side of the stop block closest to the positioning platform serves as the Y-axis reference plane.

[0007] Preferably, the positioning module includes a strip positioning template, positioning pins, pressure plates, and locking components. The strip positioning template is provided with an installation groove for placing the strip, and the strip positioning template is also provided with an avoidance groove for avoiding pre-injection molded products. A plurality of positioning pins for positioning the strip are installed at equal intervals in the installation groove, and the spacing between the positioning pins is consistent with the positioning holes on the strip. Pressure plates for blocking the strip from above are installed on both sides of the installation groove, and locking components that can be detached and used to press the strip are installed on the pressure plates.

[0008] Preferably, the locking element is a knurled nut, and the pressure plate has several oblong holes facing the mounting groove, with the knurled nut installed at the oblong holes.

[0009] Preferably, the vise seat has an adjustment hole for adjusting its installation position, and the screw passes through the adjustment hole and is locked onto the frame.

[0010] Preferably, the frame includes a base and a bracket. The base is attached to the workbench with screws. The base has two grooves for mounting the bracket. The bracket stands in the grooves and is fixed with screws.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] With its compact and ingenious design, it can quickly position and fix the strip, and can be disassembled and quickly replaced to facilitate rapid switching between welding and pull-out force testing procedures. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a pull-out force test.

[0014] Figure 2 This is a schematic diagram of the structure of a welding pull-out force testing fixture.

[0015] Figure 3 This is a schematic diagram of the clamping device structure of a welding pull-out force testing fixture.

[0016] Figure 4 This is a schematic diagram of the positioning module structure of a welding pull-out force testing fixture.

[0017] Among them, 1 is the rack, 11 is the base, and 12 is the bracket;

[0018] 2. Clamping device, 21. Vise seat, 210. Adjustment hole, 22. Adjustment rod, 23. Sliding pad, 24. Positioning block, 25. Stop block, 01. Z-axis reference plane, 02. X-axis reference plane, 03. Y-axis reference plane;

[0019] 3. Positioning module; 31. Material strip positioning template; 310. Installation slide; 311. Clearance slide; 32. Positioning pin; 33. Pressure plate; 330. Waist-shaped hole; 34. Locking component. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0021] Please see Figures 2 to 4 The embodiments of this utility model include:

[0022] A welding pull-out force testing fixture includes a frame 1, a clamping device 2, and a positioning module 3. The clamping device 2 is mounted on the top of the frame 1, and the positioning module 3 for clamping and positioning the material strip is detachably mounted on the clamping device 2.

[0023] The frame 1 includes a base 11 and a bracket 12. The base 11 is attached to the workbench by screws. The base 11 has two slots for mounting the bracket 12. The bracket 12 stands in the slots and is fixed by screws.

[0024] The clamping device 2 includes a vise seat 21, an adjusting rod 22, a sliding pad 23, a positioning block 24, and a stop block 25. The vise seat 21 is fixed to the top of the frame 1. The vise seat 21 has an adjusting hole 210 for adjusting its installation position. A screw passes through the adjusting hole 210 and is locked onto the frame 1. Both ends of the vise seat 21 have upward-extending bosses. An adjusting rod 22 is horizontally threaded onto one of the bosses. A nut is installed on the screw part of the extended end of the adjusting rod 22. The nut is fixed into the sliding pad 23. Rotating the adjusting rod 22 moves the sliding pad 24. 3. Move linearly along the adjusting rod 22. A set of opposing positioning blocks 24 are installed on the sliding pad block 23 and another boss. The opposing surfaces of the two positioning blocks 24 are provided with a positioning platform for placing the positioning module 3. The distance between the two positioning blocks 24 is adjusted by the adjusting rod 22 so as to clamp the positioning module 3 or loosen the whole and remove the positioning module 3. The positioning platform includes a Z-direction reference plane 01 and an X-direction reference plane 02 that is perpendicular to the Z-direction reference plane 01. A stop block 25 is also installed on the side of the two positioning blocks 24. The side of the stop block 25 that is close to the positioning platform serves as the Y-direction reference plane 03.

[0025] The positioning module 3 includes a strip positioning template 31, positioning pins 32, pressure plates 33, and locking components 34. The strip positioning template 31 is provided with an installation groove 310 for placing the strip, and an avoidance groove 311 for avoiding pre-injection molded products is also provided on the strip positioning template 31. Several positioning pins 32 for positioning the strip are installed at equal intervals at the installation groove 310, and the spacing between the positioning pins 32 is consistent with the positioning holes on the strip. Pressure plates 33 for blocking the strip from above are installed on both sides of the installation groove 310, and locking components 34 for pressing the strip are detachably installed on the pressure plates 33.

[0026] The locking component 34 is a knurled nut. The pressure plate 33 has several oblong holes 330 facing the mounting groove 310. The knurled nut is installed in the oblong holes 330. Move the knurled nut above the material belt and rotate the knurled nut to lock and press the material belt upward. When changing the material belt, loosen the knurled nut and move it to the side away from the mounting groove 310.

[0027] When this utility model discloses a welding pull-out force testing fixture, the knurled nut is loosened and moved to the side away from the mounting groove 310. The material strip is placed in the mounting groove 310, and the positioning pin 32 is inserted into the positioning hole on the material strip. The knurled nut is moved above the material strip, and the knurled nut is rotated to lock and press the material strip upward. The positioning module 3 containing the material strip is placed on the positioning platform of the clamping device 2, so that the positioning module 3 contacts the reference planes in the X, Y, and Z directions respectively. The adjusting rod 22 is manually rotated to lock the positioning module 3. The welding program is started to weld the wire. After welding is completed, the adjusting rod 22 is loosened, the positioning module 3 is removed, and the whole unit is transported and installed on the tensile testing machine to continue the pull-out force test. Five products can be welded in one clamping. Each product has three welding pads and two data points can be obtained, which is equivalent to obtaining 10 sets of test data in one clamping.

[0028] This utility model discloses a welding pull-out force testing fixture with a compact structure and ingenious design. It can quickly position and fix the material strip, and can be disassembled and quickly replaced to facilitate rapid switching between welding and pull-out force testing programs.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A weld pull test fixture, characterized by: The device includes a frame (1), a clamping device (2), and a positioning module (3). The clamping device (2) is installed on the top of the frame (1). The positioning module (3) is detachable and used to clamp and position the material strip. The clamping device (2) includes a vise seat (21), an adjusting rod (22), a sliding pad (23), a positioning block (24), and a stop block (25). The vise seat (21) has bosses extending upward at both ends. An adjusting rod (22) is horizontally threaded onto one boss. A nut is installed on the screw part of the extended end of the adjusting rod (22). The nut is fixed into the sliding pad (23). A set of opposing positioning blocks (24) is installed on the sliding pad (23) and the other boss. A positioning platform for placing the positioning module (3) is provided on the opposite side of the two positioning blocks (24). A stop block (25) is also installed on the side end of the two positioning blocks (24).

2. The weld pull test fixture of claim 1, wherein: The positioning platform includes a Z-axis reference plane (01) and an X-axis reference plane (02) that is perpendicular to the Z-axis reference plane (01). The side of the stop (25) that is close to the positioning platform serves as the Y-axis reference plane (03).

3. The weld pull test fixture of claim 1, wherein: The positioning module (3) includes a strip positioning template (31), positioning pins (32), a pressure plate (33), and a locking component (34). The strip positioning template (31) is provided with an installation groove (310) for placing the strip. The strip positioning template (31) is also provided with a clearance groove (311) for avoiding pre-injection molded products. Several positioning pins (32) for positioning the strip are installed at equal intervals at the installation groove (310). The spacing between the positioning pins (32) is consistent with the positioning holes on the strip. Pressure plates (33) for blocking the strip from above are installed on both sides of the installation groove (310). Locking components (34) that can be detached and used to press the strip are installed on the pressure plates (33).

4. The weld pull test fixture of claim 3, wherein: The locking component (34) uses a knurled nut, and the pressure plate (33) has several waist-shaped holes (330) facing the mounting groove (310), and the knurled nut is installed at the waist-shaped hole (330).

5. The weld pull test fixture of claim 1, wherein: The vise seat (21) is provided with an adjustment hole (210) for adjusting its installation position. The screw passes through the adjustment hole (210) and is then locked onto the frame (1).

6. The weld pull test fixture of claim 1, wherein: The frame (1) includes a base (11) and a bracket (12). The base (11) is attached to the workbench by screws. The base (11) has two slots for mounting the bracket (12). The bracket (12) stands in the slots and is fixed by screws.

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