Multi-directional tension test clamping jig

Abstract

The utility model provides a multidirectional tension test clamping fixture, including mounting arm subassembly, hoisting subassembly, support vertical frame and hanging ring, hoisting subassembly includes mounting seat, upper pull rod, lower pull rod, outer connecting block and spacer pin, mounting seat upper end is fixed below mounting arm subassembly, upper end of upper pull rod is rotatablely installed at mounting seat lower end, and lower end of lower pull rod is rotatablely installed at mounting seat lower end. The upper pull rod can swing leftwards and rightwards around the rotating shaft, the upper end of the lower pull rod is rotatably installed at the lower end of the upper pull rod, the lower pull rod can swing forwards and backwards around the rotating shaft, the outer end of the outer connecting block is fixed to the lower end of the lower pull rod, and multiple sets of inserting holes are evenly formed in the periphery of the inner end of the outer connecting block. The two sets of hoisting assemblies are fixed to the left side and the right side of the installation arm assembly respectively, the supporting vertical frame corresponds to the position between the two sets of outer connecting blocks, the hoisting ring is fixed to the lower portion of the supporting vertical frame, and the design has the advantages that the placement angle of a workpiece can be rapidly changed, and the tension performance of the workpiece in multiple directions can be measured.

Description

Technical Field

[0001] The utility model relates to the field of detection instruments, and particularly relates to a multi-directional tensile test clamping fixture. Background Art

[0002] Metal workpieces are often welded to assemble multiple workpieces into metal products with complex structures and richer functions. For some products with high manufacturing requirements, after welding, it is necessary to detect their tensile properties to ensure safety during use. Moreover, in some cases, it is necessary to detect the tensile properties of workpieces in various directions. However, traditional tensile test fixtures are generally fixed only for the tensile test of a single direction of the product and cannot achieve multi-directional tensile testing of workpieces. Therefore, it is necessary to make a multi-directional tensile test clamping fixture to solve the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to provide a multi-directional tensile test clamping fixture to solve the problems mentioned in the background art.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A multi-directional tensile test clamping fixture includes a mounting arm assembly, a hoisting assembly, a support upright frame, and a lifting ring. The hoisting assembly includes a mounting seat, an upper pull rod, a lower pull rod, an outer connection block, and a limit pin. The upper end of the mounting seat is fixed below the mounting arm assembly. The upper end of the upper pull rod is rotatably mounted at the lower end of the mounting seat, and the upper pull rod can swing left and right around the rotation axis. The upper end of the lower pull rod is rotatably mounted at the lower end of the upper pull rod, and the lower pull rod can swing back and forth around the rotation axis. The outer end of the outer connection block is fixed at the lower end of the lower pull rod, and multiple groups of jacks are uniformly arranged on the outer periphery of the inner end of the outer connection block. The limit pin is inserted into the jacks. Two sets of hoisting assemblies are provided and are respectively fixed on the left and right sides of the mounting arm assembly. The support upright frame corresponds to the space between the two outer connection blocks, and the lifting ring is fixed below the support upright frame.

[0006] A further description of the utility model: The mounting arm assembly includes a mounting cross beam, a first adjusting block, and a second adjusting block. Multiple groups of screw holes are provided on the mounting cross beam in the left-right direction. Both the first adjusting block and the second adjusting block are fixed on the mounting cross beam by screws that are threadedly engaged with the screw holes. The upper ends of the first adjusting block and the second adjusting block are respectively provided with a first hanging hole and a second hanging hole. A strip-shaped hole is provided at the lower end of the first adjusting block. The left mounting seat is fixed on the first adjusting block by a screw passing through the strip-shaped hole, and the right mounting seat is fixed at the lower end of the second adjusting block.

[0007] Further description of the present utility model: A first through groove and a circular groove are formed at the lower end of the upper pull rod. The circular groove communicates with the lower end of the first through groove. The hoisting assembly further includes a first fastening member, which includes an inner retaining piece and a first fastening post. The outer end of the first fastening post is fixed on the lower pull rod, and the inner retaining piece is fixed at the inner end of the first fastening post. The first fastening post is cylindrical and corresponds to the circular groove.

[0008] Further description of the present utility model: A second through groove and a square groove are formed at the lower end of the lower pull rod. The square groove communicates with the lower end of the second through groove. The hoisting assembly further includes a second fastening member, which includes an outer retaining piece and a second fastening post. The inner end of the second fastening post is fixed on the outer connecting block, and the outer retaining piece is fixed at the outer end of the second fastening post. The second fastening post corresponds to the square groove, and the shape of the second fastening post matches that of the square groove.

[0009] Further description of the present utility model: The supporting upright frame includes a middle support frame and an inner connecting block. Two groups of inner connecting blocks are provided and are respectively fixed on the left and right sides of the middle support frame. The inner connecting blocks are fixedly connected to the inner side of the workpiece, and the lifting ring is fixed at the lower end of the middle support frame.

[0010] The beneficial effect of the present utility model is that since multiple groups of jacks are provided on the outer connecting block, after the workpiece is rotated by a certain angle, the limit pin can be inserted into the corresponding jack, so that the placement angle of the workpiece can be quickly converted to measure the performance when pulling forces are applied in different directions. For example, if four groups of jacks are evenly arranged, the performance when pulling forces are applied in four directions relative to the workpiece can be measured. The advantage of this design is that it can quickly change the placement angle of the workpiece and can measure the pulling force performance of the workpiece in multiple directions. Description of the Drawings

[0011] Figure 1 is the overall structure diagram of the present utility model (including the workpiece);

[0012] Figure 2 is the structure diagram of the mounting arm assembly in the present utility model;

[0013] Figure 3 is the structure diagram of the hoisting assembly in the present utility model;

[0014] Figure 4 is the exploded structure diagram of the hoisting assembly in the present utility model;

[0015] Figure 5 is the structure diagram of the supporting upright frame and the lifting ring in the present utility model;

[0016] Description of the Reference Numerals:

[0017] 1. Installation arm assembly; 11. Installation cross beam; 111. Screw hole; 12. First adjustment block; 121. First lifting hole; 122. Slot; 13. Second adjustment block; 131. Second lifting hole; 2. Hoisting assembly; 21. Mounting seat; 22. Upper pull rod; 221. First through slot; 222. Round slot; 23. Lower pull rod; 231. Second through slot; 232. Square slot; 24. Outer connection block; 25. Limit pin; 26. First fastening member; 261. Inner retaining piece; 262. First fastening post; 27. Second fastening member; 271. Outer retaining piece; 272. Second fastening post; 3. Support upright frame; 31. Middle support frame; 32. Inner connection block; 4. Hoisting ring; 5. First welding piece; 6. Second welding piece; 7. Welding bracket. Detailed implementation manner

[0018] The present utility model will be further described below in conjunction with the accompanying drawings:

[0019] As Figures 1 to 5 shown, a multi-directional tensile test clamping fixture includes an installation arm assembly 1, a hoisting assembly 2, a support upright frame 3 and a hoisting ring 4. The hoisting assembly 2 includes a mounting seat 21, an upper pull rod 22, a lower pull rod 23, an outer connection block 24 and a limit pin 25. The upper end of the mounting seat 21 is fixed below the installation arm assembly 1. The upper end of the upper pull rod 22 is rotatably installed at the lower end of the mounting seat 21. The upper pull rod 22 can swing left and right around the rotation axis. The upper end of the lower pull rod 23 is rotatably installed at the lower end of the upper pull rod 22. The lower pull rod 23 can swing back and forth around the rotation axis. The outer end of the outer connection block 24 is fixed at the lower end of the lower pull rod 23. A plurality of groups of jacks are evenly arranged on the outer periphery of the inner end of the outer connection block 24. The limit pin 25 is inserted into the jacks. Two sets of hoisting assemblies 2 are provided and are respectively fixed on the left and right sides of the installation arm assembly 1. The support upright frame 3 corresponds to the two outer connection blocks 24. The hoisting ring 4 is fixed below the support upright frame 3.

[0020] The workpiece to be tested consists of three parts, namely the first welding part 5, the second welding part 6, and the welding bracket 7. After the three parts are welded, the workpiece needs to be subjected to tensile tests in all directions. Before the test, first fix the upper end of the second welding part 6 of the workpiece on the supporting vertical frame 3 with screws. The outer end of the first welding part 5 is sleeved on the outer connection block 24. The limit pin 25 passes through the through hole on the first welding part 5 and is inserted into the jack on the outer connection block 24, so that the first welding part 5 will not rotate on the outer connection block 24. The dynamometer is correspondingly above the mounting arm assembly 1 and is connected to the top of the mounting arm assembly 1 through a rope. The device for applying tensile force is connected to the lifting ring 4 through a rope. After the device applies a downward tensile force, the dynamometer shows the corresponding reading, so as to detect the tensile force of the workpiece. Since there are multiple groups of jacks on the outer connection block 24, after the workpiece is rotated by a certain angle, the limit pin 25 can be inserted into the corresponding jack, so that the placement angle of the workpiece can be quickly converted to measure the performance when tensile forces are applied in different directions. For example, if four groups of jacks are evenly arranged, the performance when tensile forces are applied in four directions relative to the workpiece can be measured. The advantage of this design is that it can quickly change the placement angle of the workpiece and can measure the tensile force performance of the workpiece in multiple directions.

[0021] The mounting arm assembly 1 includes a mounting cross beam 11, a first adjustment block 12, and a second adjustment block 13. Multiple groups of screw holes 111 are provided on the mounting cross beam 11 in the left-right direction. The first adjustment block 12 and the second adjustment block 13 are both fixed on the mounting cross beam 11 by screws that are threadedly engaged with the screw holes 111. The upper ends of the first adjustment block 12 and the second adjustment block 13 are respectively provided with a first hanging hole 121 and a second hanging hole 131. The lower end of the first adjustment block 12 is provided with a strip-shaped hole 122. The left mounting seat 21 is fixed on the first adjustment block 12 by a screw passing through the strip-shaped hole 122. The right mounting seat 21 is fixed at the lower end of the second adjustment block 13.

[0022] The distance between the first adjustment block 12 and the second adjustment block 13 can be adjusted to adapt to workpieces of different widths for measurement. The dynamometer is connected to the first hanging hole 121 and the second hanging hole 131 through a rope. The left mounting seat 21 can adjust its position in the left-right direction through the strip-shaped hole 122.

[0023] The lower end of the upper pull rod 22 is provided with a first through slot 221 and a circular slot 222. The circular slot 222 communicates with the lower end of the first through slot 221. The hoisting assembly 2 further includes a first buckling member 26. The first buckling member 26 includes an inner retaining piece 261 and a first buckling column 262. The outer end of the first buckling column 262 is fixed on the lower pull rod 23, and the inner retaining piece 261 is fixed at the inner end of the first buckling column 262. The first buckling column 262 is cylindrical and corresponds to the circular slot 222.

[0024] When assembling the lower pull rod 23 and the upper pull rod 22, after passing the inner retaining piece through the first through slot 221, the first buckling post 262 correspondingly extends downward into the circular slot 222, thereby achieving rapid assembly.

[0025] A second through slot 231 and a square slot 232 are formed at the lower end of the lower pull rod 23. The square slot 232 communicates with the lower end of the second through slot 231. The hoisting assembly 2 further includes a second buckling member 27. The second buckling member 27 includes an outer retaining piece 271 and a second buckling post 272. The inner end of the second buckling post 272 is fixed to the outer connection block 24, and the outer retaining piece 271 is fixed to the outer end of the second buckling post 272. The second buckling post 272 corresponds to the square slot 232, and the shape of the second buckling post 272 matches that of the square slot 232.

[0026] When assembling the outer connection block 24 and the lower pull rod 23, after passing the outer retaining piece 271 through the second through slot 231, the second buckling post 272 correspondingly extends downward into the square slot 232, thereby achieving rapid assembly.

[0027] The support upright frame 3 includes a middle support frame 31 and inner connection blocks 32. Two groups of inner connection blocks 32 are provided and are respectively fixed to the left and right sides of the middle support frame 31. The inner connection blocks 32 are fixedly connected to the inner side of the workpiece, and the hanging ring 4 is fixed to the lower end of the middle support frame 31.

[0028] The second welding member 6 is fixedly connected to the inner connection block 32 by screws. One group of workpieces is installed on each of the left and right sides of the support upright frame 3, and the tensile tests of two groups of workpieces can be carried out simultaneously.

[0029] The above does not impose any limitation on the technical scope of the present invention. Any modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A multi-directional tensile test clamping fixture, characterized in that: It includes an installation arm assembly, a hoisting assembly, a support upright frame and a lifting ring. The hoisting assembly includes a mounting seat, an upper pull rod, a lower pull rod, an outer connection block and a limit pin. The upper end of the mounting seat is fixed below the installation arm assembly. The upper end of the upper pull rod is rotatably installed at the lower end of the mounting seat. The upper pull rod can swing left and right around a rotation axis. The upper end of the lower pull rod is rotatably installed at the lower end of the upper pull rod. The lower pull rod can swing back and forth around a rotation axis. The outer end of the outer connection block is fixed at the lower end of the lower pull rod. Multiple groups of jacks are evenly arranged on the outer periphery of the inner end of the outer connection block. The limit pin is inserted into the jacks. Two sets of the hoisting assemblies are provided and are respectively fixed on the left and right sides of the installation arm assembly. The support upright frame corresponds to the space between the two sets of outer connection blocks. The lifting ring is fixed below the support upright frame.

2. The multi-directional tensile test clamping fixture according to claim 1, characterized in that: The installation arm assembly includes an installation cross beam, a first adjusting block and a second adjusting block. Multiple groups of screw holes are provided on the installation cross beam in the left-right direction. The first adjusting block and the second adjusting block are both fixed on the installation cross beam by screws that are threadedly engaged with the screw holes. The upper ends of the first adjusting block and the second adjusting block are respectively provided with a first lifting hole and a second lifting hole. A strip-shaped hole is provided at the lower end of the first adjusting block. The left mounting seat is fixed on the first adjusting block by a screw passing through the strip-shaped hole. The right mounting seat is fixed at the lower end of the second adjusting block.

3. A multi-directional tensile test clamping fixture according to claim 1, characterized in that: A first through groove and a circular groove are provided at the lower end of the upper pull rod. The circular groove communicates with the lower end of the first through groove. The hoisting assembly further includes a first fastening member. The first fastening member includes an inner retaining piece and a first fastening post. The outer end of the first fastening post is fixed on the lower pull rod. The inner retaining piece is fixed at the inner end of the first fastening post. The first fastening post is cylindrical and corresponds to the circular groove.

4. The multi-directional tensile test clamping fixture according to claim 1, wherein: A second through groove and a square groove are provided at the lower end of the lower pull rod. The square groove communicates with the lower end of the second through groove. The hoisting assembly further includes a second fastening member. The second fastening member includes an outer retaining piece and a second fastening post. The inner end of the second fastening post is fixed on the outer connection block. The outer retaining piece is fixed at the outer end of the second fastening post. The second fastening post corresponds to the square groove. The shape of the second fastening post matches the square groove.

5. A multi-directional tensile test clamping fixture according to claim 1, characterized in that: The support upright frame includes a middle support frame and an inner connection block. Two sets of the inner connection blocks are provided and are respectively fixed on the left and right sides of the middle support frame. The inner connection blocks are fixedly connected to the inner side of the workpiece. The lifting ring is fixed at the lower end of the middle support frame.

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