Device for detecting strength of copper bolt

Abstract

The utility model discloses a copper bolt strength detection device, which comprises a tensile machine and a cross beam, the cross beam is fixedly connected with the driving end of the tensile machine, a base is fixed on the upper surface of the tensile machine, a plurality of groups of mounting components and supporting components are matched with the base, a T-shaped groove is formed in the top of the base, and the mounting components and the supporting components are arranged in the T-shaped groove. Each installation assembly comprises a first clamping block, the supporting assembly comprises a second clamping block, and the section of the first clamping block and the section of the second clamping block are both in a T shape. According to the utility model, the tensile machine, the cross beam, the base, the clamping assembly and the mounting assembly are arranged, and the mounting assembly and the base can be quickly and fixedly connected in a clamping manner, so that the mounting assembly can be quickly detached from the base, and the clamping assembly can clamp bolts with different diameters for detection; and the installation assemblies with different sizes of thread grooves can be replaced to adapt to detection of bolts with different sizes, so that the universality and the convenience of the detection device are improved.

Description

Technical Field

[0001] This utility model relates to the field of copper bolt testing technology, and in particular to a copper bolt strength testing device. Background Technology

[0002] Bolt strength testing is a crucial step in ensuring fastener reliability. It primarily assesses the mechanical properties of bolts under static, dynamic, or fatigue loads to prevent connection failure due to insufficient strength. Testing items mainly include: determining the bolt's maximum load-bearing capacity under axial tension using a tensile testing machine until fracture, verifying compliance with standards; hardness testing (e.g., Rockwell hardness HRC, Vickers hardness HV): indirectly evaluating material strength and heat treatment effects; and torque-preload testing: simulating actual working conditions to analyze the relationship between the torque coefficient and preload during bolt tightening.

[0003] Currently, tensile strength testing of bolts typically involves using a tensile testing machine to pull on both ends of the bolt, recording the tensile force at which the bolt breaks. However, this method requires specialized fixtures to hold the bolt in place, and each fixture can only hold bolts of a single size, resulting in limited versatility and cumbersome fixture replacement. Furthermore, each device can only perform one function; after tensile testing, it cannot be used to test the bolt's bending strength, further limiting its practicality. Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a copper bolt strength testing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a copper bolt strength testing device, comprising a tensile testing machine and a crossbeam, wherein the crossbeam is fixedly connected to the drive end of the tensile testing machine, a base is fixedly mounted on the upper surface of the tensile testing machine, and multiple sets of mounting components and support components are matched with the base. A T-shaped groove is provided on the top of the base, each set of mounting components includes a first locking block, and the support component includes a second locking block. The first and second locking blocks have T-shaped cross-sections and are slidably engaged inside the T-shaped groove. A clamping component is fixedly mounted on the lower surface of the crossbeam, and a detachable pressing component is fixedly mounted on the bottom of the clamping component.

[0006] Furthermore, a connecting block is fixed to the top of the first card block, and the upper surface of the connecting block is provided with a threaded groove for screwing in a bolt. The threaded grooves of the multiple sets of mounting components have different diameters.

[0007] Furthermore, the clamping assembly includes two side plates fixed to the lower surface of the crossbeam, and a bidirectional lead screw is rotatably connected between the two side plates via a bearing. Two sliders are rotatably connected to the surface of the bidirectional lead screw via threads. The bottom adjacent sides of the two sliders are provided with slots. A guide rod is fixed between the two side plates, and the guide rod passes through the two sliders and is slidably connected to the sliders.

[0008] Furthermore, a knob is fixedly connected to one end of the bidirectional lead screw, and the outer surface of the knob is provided with anti-slip texture.

[0009] Furthermore, the extrusion assembly includes a third locking block with a T-shaped cross-section. The top of the third locking block is inserted into two slots, and a pressure rod is fixed to the bottom of the third locking block.

[0010] Furthermore, a U-shaped plate is fixed to the top of the second card block. Both sides of the U-shaped plate are provided with through slots for bolts to pass through. The top of the through slots is connected to a compression screw through a threaded connection, and a handle is fixed to the top of the compression screw.

[0011] Furthermore, the bottom of the through groove is V-shaped.

[0012] The beneficial effects of this utility model are:

[0013] 1. In use, this utility model provides a copper bolt strength testing device, which includes a tensile testing machine, a crossbeam, a base, a clamping assembly, and a mounting assembly. The mounting assembly and the base can be quickly and securely connected by a snap-fit ​​mechanism, allowing the mounting assembly to be quickly removed from the base. The clamping assembly can hold bolts of different diameters for testing, and by replacing the mounting assembly with one of different thread groove sizes, it can also be adapted to test bolts of different sizes, thereby improving the versatility and convenience of the testing device.

[0014] 2. In use, this utility model provides a copper bolt strength testing device, which includes a tensile testing machine, a crossbeam, a base, a clamping assembly, a support assembly, and a pressing assembly. The support assembly can be quickly connected and installed with the base. The bolt is horizontally supported by the support assembly, and the pressing assembly is fixed by the clamping assembly. At this time, the crossbeam descends, driving the pressing assembly to press the bolt on the support assembly. This also enables the testing of the bolt's bending strength, thus improving the practicality of the device. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 : First overall schematic diagram of this utility model;

[0017] Figure 2 : A second overall schematic diagram of this utility model;

[0018] Figure 3 The present utility model Figure 1 Enlarged view of point A in the middle;

[0019] Figure 4 : A perspective view of the first fixing component of this utility model;

[0020] Figure 5 : Perspective view of the second fixing component and the extrusion component of this utility model.

[0021] The attached figures are labeled as follows:

[0022] 1. Tensile testing machine; 2. Crossbeam; 3. Base; 31. T-slot; 4. Clamping assembly; 41. Side plate; 42. Two-way lead screw; 43. Slider; 44. Slot; 45. Guide rod; 46. Knob; 5. Mounting assembly; 51. Connecting block; 52. Threaded groove; 53. First clamping block; 6. Support assembly; 61. U-shaped plate; 62. Through groove; 63. Extrusion screw; 64. Second clamping block; 7. Extrusion assembly; 71. Third clamping block; 72. Pressure rod. Detailed Implementation

[0023] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1-5 As shown, a copper bolt strength testing device is disclosed, comprising a tensile testing machine 1 and a crossbeam 2. The crossbeam 2 is fixedly connected to the drive end of the tensile testing machine 1. A base 3 is fixedly mounted on the upper surface of the tensile testing machine 1. Multiple sets of mounting components 5 and support components 6 are matched with the base 3. A T-shaped groove 31 is provided on the top of the base 3. Each set of mounting components 5 includes a first locking block 53, and the support component 6 includes a second locking block 64. The first locking block 53 and the second locking block 64 are both T-shaped in cross section. The first locking block 53 and the second locking block 64 are slidably engaged inside the T-shaped groove 31. A clamping component 4 is fixedly mounted on the lower surface of the crossbeam 2, and a detachable extrusion component 7 is fixedly mounted on the bottom of the clamping component 4.

[0025] In this embodiment, the tensile testing machine 1 is an Instron, specifically model Instron5985, and the crossbeam 2 is the structure of the tensile testing machine 1 itself. The specific practical method and working principle are the same as those of the prior art.

[0026] The top of the first locking block 53 is fixed with a connecting block 51. The upper surface of the connecting block 51 is provided with a threaded groove 52 for screwing in bolts. The threaded grooves 52 of the multiple sets of mounting components 5 have different diameters.

[0027] When it is necessary to perform tensile testing on the bolt to be tested, select the mounting component 5 that matches the thread groove 52, screw the bolt to be tested into the thread groove 52, and then snap the first locking block 53 into the T-slot 31 on the base 3.

[0028] The clamping assembly 4 includes two side plates 41 fixed to the lower surface of the crossbeam 2. A bidirectional lead screw 42 is rotatably connected between the two side plates 41 via a bearing. Two sliders 43 are rotatably connected to the surface of the bidirectional lead screw 42 via threads. A slot 44 is provided on the adjacent side of the bottom end of the two sliders 43. A guide rod 45 is fixed between the two side plates 41. The guide rod 45 passes through the two sliders 43 and is slidably connected to the sliders 43.

[0029] A knob 46 is fixedly connected to one end of the bidirectional lead screw 42, and the outer surface of the knob 46 is provided with anti-slip texture.

[0030] Rotating the bidirectional lead screw 42 drives two sliders 43 to move along the guide rod 45, thereby adjusting the distance between the two sliders 43. The guide rod 45 provides support and guidance for the sliders 43, preventing the bidirectional lead screw 42 from bending under stress.

[0031] When a tensile test is required on the bolt, first start the tensile testing machine 1 to drive the crossbeam 2 to descend until the slots 44 are located on both sides of the bolt nut. Then, rotate the knob 46 to move the two sliders 43 closer together, so that the top nut of the bolt is located in the two slots 44. During the test, start the tensile testing machine 1 to move the crossbeam 2 upward and pull the bolt until it breaks. Then, check the data from the tensile testing machine 1.

[0032] The extrusion assembly 7 includes a third locking block 71, and the third locking block 71 has a T-shaped cross-section. The top of the third locking block 71 is inserted into the two locking slots 44, and a pressure rod 72 is fixed at the bottom of the third locking block 71.

[0033] When performing bending resistance testing on the bolt to be tested, the two sliders 43 can be moved closer to each other by rotating the knob 46 of the clamping assembly 4, so that the two slots 44 are locked on the surface of the third block 71, thereby achieving a fixed connection between the pressing assembly 7 and the clamping assembly 4.

[0034] The top of the second locking block 64 is fixed with a U-shaped plate 61. Both sides of the U-shaped plate 61 are provided with through slots 62 for bolts to pass through. The top of the through slots 62 is connected to a pressing screw 63 by a thread, and the top of the pressing screw 63 is fixed with a handle. The bottom of the through slots 62 is V-shaped.

[0035] When performing a bending resistance test on the bolt, the bolt is passed through two through slots 62, with the bolt fitting against the bottom wall of the V-shaped through slot 62. Then, the compression screw 63 is turned to compress and fix the bolt. Finally, the tensile testing machine 1 is started, causing the crossbeam 2 and the compression assembly 7 to descend. The bolt is then compressed using the pressure rod 72, and the data from the tensile testing machine 1 during the bolt bending process is observed.

[0036] Working principle: When performing tensile testing: Select the mounting component 5 that matches the thread groove 52, screw the bolt to be tested into the thread groove 52, and then insert the first locking block 53 into the T-slot 31 on the base 3. Start the tensile testing machine 1 to drive the crossbeam 2 to descend until the locking slots 44 are located on both sides of the nut of the bolt to be tested. Then, rotate the knob 46 to drive the two sliders 43 to move closer to each other, so that the top nut of the bolt to be tested is located in the two locking slots 44. During testing, start the tensile testing machine 1 to drive the crossbeam 2 to move upward and pull the bolt to be tested until the bolt breaks. Check the data of the tensile testing machine 1.

[0037] During the bending resistance test: First, the clamping assembly 7 is fixed to the compression assembly 4, then the support assembly 6 is fixed to the base 3. Next, the bolt to be tested is passed through the two through slots 62, with the bolt fitting against the bottom wall of the V-shaped through slot 62. Then, the compression screw 63 is turned to compress and fix the bolt. Finally, the tensile testing machine 1 is started to lower the crossbeam 2 and the compression assembly 7, and the bolt is compressed using the pressure rod 72. The data of the tensile testing machine 1 during the bolt bending process is observed.

[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A copper bolt strength testing device, comprising a tensile testing machine (1) and a crossbeam (2), characterized in that: The crossbeam (2) is fixedly connected to the drive end of the tensile testing machine (1). The upper surface of the tensile testing machine (1) is fixed with a base (3). Multiple sets of installation components (5) and support components (6) are matched with the base (3). A T-shaped groove (31) is opened on the top of the base (3). Each set of installation components (5) includes a first locking block (53). The support component (6) includes a second locking block (64). The first locking block (53) and the second locking block (64) are both T-shaped in cross section. The first locking block (53) and the second locking block (64) are slidably engaged in the T-shaped groove (31). A clamping component (4) is fixed on the lower surface of the crossbeam (2). A detachable extrusion component (7) is fixed at the bottom of the clamping component (4).

2. The copper bolt strength testing device according to claim 1, characterized in that: The first card block (53) has a connecting block (51) fixed at its top. The upper surface of the connecting block (51) has a threaded groove (52) for screwing in bolts. The threaded grooves (52) of the multiple sets of mounting components (5) have different diameters.

3. The copper bolt strength testing device according to claim 1, characterized in that: The clamping assembly (4) includes two side plates (41) fixed to the lower surface of the crossbeam (2). A bidirectional lead screw (42) is rotatably connected between the two side plates (41) via a bearing. Two sliders (43) are rotatably connected to the surface of the bidirectional lead screw (42) via threads. A slot (44) is provided on the adjacent side of the bottom end of the two sliders (43). A guide rod (45) is fixed between the two side plates (41). The guide rod (45) passes through the two sliders (43) and is slidably connected to the sliders (43).

4. The copper bolt strength testing device according to claim 3, characterized in that: One end of the bidirectional lead screw (42) is fixedly connected to a knob (46), and the outer surface of the knob (46) is provided with anti-slip texture.

5. The copper bolt strength testing device according to claim 3, characterized in that: The extrusion assembly (7) includes a third locking block (71), and the third locking block (71) has a T-shaped cross-section. The top of the third locking block (71) is inserted into the two locking slots (44), and a pressure rod (72) is fixed at the bottom of the third locking block (71).

6. The copper bolt strength testing device according to claim 1, characterized in that: The second card block (64) has a U-shaped plate (61) fixed at the top. Both sides of the U-shaped plate (61) are provided with through slots (62) for passing bolts. The top of the through slots (62) is connected to a pressing screw (63) by a threaded connection, and the top of the pressing screw (63) is fixed with a handle.

7. The copper bolt strength testing device according to claim 6, characterized in that: The bottom of the through groove (62) is V-shaped.

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