Bolt piece strength detection device

Abstract

The utility model belongs to the field of bolt detection, and discloses a bolt piece strength detection device, which comprises a base, a torque detection mechanism and a clamping seat, one end of the clamping seat is provided with a tightening assembly, a clamping block is arranged in the clamping seat in a sliding manner, the clamping block is connected with the tightening assembly, and one end of the clamping block is provided with a clamping cavity; the clamping unit comprises a limiting plate, an inner clamping plate, an outer clamping plate and a gasket, a limiting assembly is installed on the limiting plate, a side clamping plate is arranged on the limiting plate in a sliding mode, a control assembly is arranged on the side wall of the limiting plate, through holes are formed in the inner clamping plate and the outer clamping plate correspondingly, and sinking grooves coaxial with the through holes are formed in the opposite sides of the inner clamping plate and the outer clamping plate correspondingly; a gasket is placed in the sinking groove in an abutting mode, and a clamping hole is formed in the center of the gasket. The limiting plate, the inner clamping plate and the outer clamping plate do not need to be replaced in the mode of replacing the gaskets, the types and the number of clamps needing to be replaced when bolts of different models are clamped are reduced, time and cost are saved, and actual use is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of bolt detection, and in particular relates to a bolt strength detection device. Background Art

[0002] Bolts are commonly used fasteners in building structures and engineering structures. They mainly play the role of fastening and connecting. In order to ensure the connection strength of bolted connectors, it is necessary to carry out corresponding strength testing on the bolts. Among them, the torsional strength of the bolts is very important.

[0003] A Chinese patent with publication number CN218496313U discloses a high-strength bolt detector, comprising a base with a workbench on the top, a detection device arranged on the workbench, a slide seat arranged on the workbench and slidably connected to the end surface of the workbench, and a fixture group arranged on the slide seat and used to install the bolts to be tested; the slide seat and the workbench are arranged side by side; the fixture group comprises an outer connecting plate movably connected to the slide seat and located on the outside, an inner connecting plate movably connected to the slide seat and located on the inside, and a limit plate detachably connected to the inner connecting plate, the limit plate abuts against the inner connecting plate and is located on the side away from the outer connecting plate; by detachably arranging the limit plate on the inner connecting plate, the corresponding limit plate can be replaced according to different bolts, and at the same time, the connection groove and the connecting table are used to cooperate to realize the rapid replacement and removal of the limit plate, thereby improving the efficiency of detection.

[0004] However, in actual use, due to the different sizes of different bolts, corresponding limit plates, inner connecting plates, and outer connecting plates of different specifications are required, which results in the above-mentioned device needing to frequently replace multiple fixtures when continuously detecting bolts of multiple different sizes, thereby increasing the workers' disassembly and assembly workload and reducing the work efficiency. At the same time, the existence of multiple and various sizes of fixtures increases the equipment cost and increases the workload of workers in managing jigs and fixtures. That is, the above-mentioned device is not conducive to actual use. Utility Model Content

[0005] The utility model aims to provide a bolt strength detection device to solve the problem that the prior art mentioned above is not conducive to practical use.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bolt strength detection device, comprising

[0007] A base, on which a torque detection mechanism and a clamping seat are installed, a tightening assembly is installed at one end of the clamping seat away from the torque detection mechanism, a clamping block is slidably arranged in the clamping seat, the clamping block is connected to the tightening assembly, and a T-shaped clamping cavity is opened at one end of the clamping block close to the torque detection mechanism;

[0008] The clamping unit includes a limit plate, an inner clamping plate, an outer clamping plate and a gasket. The outer clamping plate is clamped and placed on a side of the clamping seat close to the torque detection mechanism, the inner clamping plate is inserted into the clamping cavity, and the limit plate is slidably arranged on the side of the inner clamping plate away from the torque detection mechanism. A limit assembly is installed on the limit plate, the bottom of the limit plate is an inverted V-shape, and two sliding grooves that are symmetrical and penetrate up and down are arranged on the top of the limit plate. Side clamping plates are slidably arranged in the sliding grooves, and the bottom edges of the side clamping plates are lower than the bottom edge of the limit plate. A control assembly is arranged on the side wall of the limit plate, and the control assembly is used to control the position of the side clamping plates. Through holes are provided on the inner clamping plate and the outer clamping plate, and sink grooves coaxially arranged with the through holes are respectively provided on the opposite sides of the inner clamping plate and the outer clamping plate, and gaskets are placed in abutment in the sink grooves, and the center of the gasket has a clamping hole.

[0009] The principle and effect of this technical solution:

[0010] 1. Through the arrangement of the clamping seat, the clamping block, the clamping cavity tightening assembly and the clamping unit, the bolt can be clamped to stop rotation, and then the torque detection mechanism is used to detect the torque at the end of the bolt, thereby obtaining the torsional strength of the bolt.

[0011] 2. By respectively opening through holes and recessed grooves on the inner and outer clamping plates, and placing gaskets in the recessed grooves, the ends of bolts of different types can pass through the inner and outer clamping plates, so that the inner and outer clamping plates do not need to be replaced, and by replacing the gaskets that match the bolt models, the aperture of the clamping holes inside the gaskets can be changed, thereby centering, centering and placing the bolts, and by screwing the nut on the ends of the bolts and making the nut abut against the gaskets, the bolts can be clamped and placed on the inner and outer clamping plates, and when clamping bolts of different types, only the corresponding gaskets need to be replaced, saving the types and quantities of the fixtures, and at the same time, due to the small size of the gaskets, less material is required, which is more cost-effective, easier to manage and store, and easy to use in practice.

[0012] 3. By making the bottom of the limit plate an inverted V-shape that matches the regular hexagon, the limit plate can be abutted against the hexagonal head of the bolt head by changing the height, so that the limit plate can adapt to the head size of bolts of different types (the head sizes of bolts of different types are different, but they are all regular hexagons), and the head of the bolt can be prevented from rotating by abutting, thereby achieving a rotation-stopping effect. In addition, by setting the limit assembly, the stability of the position of the limit plate can be guaranteed, thereby making the rotation-stopping effect more stable, that is, when different types of bolts are rotation-stopped, there is no need to replace the limit plate, thereby saving the steps of replacing, storing and managing the clamp, etc., which is easy to use in practice and saves costs.

[0013] 4. Through the setting of the sliding groove, the side clamping plate and the control component, the distance between the two side clamping plates can be controlled by the control component, so that the side clamping plate can be adjusted according to the size of the bolt head, so that the side clamping plate can clamp the bolt, further clamp the bolt to prevent rotation, and make the bolt more stable during detection.

[0014] The utility model is further configured as follows: a clamping groove with a T-shaped cross section is opened on the side wall of the inner clamping plate, a sliding block with a T-shaped cross section is fixed to the side wall of the limiting plate, and the sliding block is slidably matched in the clamping groove.

[0015] The principle and effect of this technical solution: through the setting of the T-shaped clamping groove and the slider, when the limit plate is clamped and placed on the inner clamping plate, it can only move up and down relative to the inner clamping plate, but cannot move away from the inner clamping plate, so that the limit plate can stably limit the head of the bolt and stop rotation. At the same time, the limit plate can be removed from the inner clamping plate, thereby facilitating the placement and clamping of the bolt.

[0016] The utility model is further configured as follows: the limiting assembly includes a vertical plate and a limiting bolt, the vertical plate is fixed to the top of the limiting plate, the limiting bolt is threadedly inserted into the vertical plate, and the end of the limiting bolt abuts against the side wall of the inner clamping plate.

[0017] The principle and effect of this technical solution: through the setting of the vertical plate and the limit bolt, after the limit plate slides to abut against the bolt head, the limit bolt can be rotated to make the limit bolt abut against the inner clamping plate, and then the friction between the slider and the clamping groove and the friction between the limit bolt and the inner clamping plate are used to clamp and limit the limit, so that the limit plate can be stably placed above the bolt head, which has the effect of stopping and limiting the bolt.

[0018] The utility model is further configured as follows: the control component includes a control cap and a control bolt, the control bolt is rotatably installed in the limit plate, and the control bolt is threadedly inserted into the side clamping plate, one end of the control bolt passes through the limit plate and is fixed to the control cap.

[0019] The principle and effect of this technical solution: through the setting of the control cap and the control bolt, the rotation of the control cap can drive the control bolt to rotate, so that the two side clamps threadedly connected with the control bolt can approach and move away from each other along the sliding groove, and then the distance between the side clamps can be adjusted according to the type of the bolt, so that the limit plate can adapt to a variety of different types of bolts without replacement, thereby improving the applicability, reducing the cost of making the clamp, and being more practical.

[0020] The utility model is further configured as follows: a side wall of the clamping block is provided with a clearance groove, a side wall of the clamping seat is provided with a clearance notch, and the control bolt passes through the clearance groove and the clearance notch.

[0021] The principle and effect of this technical solution: by setting the clearance groove and the clearance notch, the existence of the control component will not interfere with the placement of the limit plate in the clamping cavity, and will not hinder the limit plate from moving up and down in the clamping cavity, so that the clamping cavity can be better adapted to the limit plate, thereby limiting the limit plate, and the limit plate limits the head of the bolt, which improves the limit plate's ability to limit the bolt head.

[0022] The utility model is further configured as follows: a moving groove is opened on the base, a moving block is fixed on the bottom of the clamping seat, and the moving block is slidably matched in the moving groove.

[0023] The principle and effect of this technical solution: the setting of the movable groove and the movable block enables the clamping seat to move relative to the base, so that the position of the clamping seat can be adjusted according to the length of the bolt. At the same time, after the bolt is clamped, the bolt can be driven close to the torque detection mechanism by moving the clamping seat to perform torque detection on the bolt.

[0024] The utility model is further configured as follows: a positioning bolt is threadedly inserted on the clamping seat, and the end of the positioning bolt abuts against the top of the base.

[0025] The principle and effect of this technical solution: by setting the positioning bolt, after the clamping seat is moved into place, the end of the positioning bolt can be made to abut against the base by rotating the positioning bolt, so that the position of the clamping seat is limited by the friction force generated by the abutment, avoiding the clamping seat from being misplaced or jittered during detection, thereby improving the accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is the front view of the utility model;

[0027] Figure 2 for Figure 1 Enlarged view of the center clamping seat;

[0028] Figure 3 for Figure 2 Structural diagram of the middle clamping seat;

[0029] Figure 4 for Figure 2 Structural diagram of the middle limit plate and inner clamping plate;

[0030] Figure 5 for Figure 4 Exploded structure diagram in;

[0031] Figure 6 for Figure 4 Structural diagram of the control component in the middle;

[0032] Figure 7 for Figure 4 The back structure diagram at the middle limit plate when viewed from above;

[0033] Figure 8 for Figure 2 The back explosion structure diagram of the middle and outer pallets;

[0034] Fig. 9 for Figure 1 Structural diagram of the torque detection mechanism. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples:

[0036] The figure marks in the drawings of the specification include: 101, base; 102, torque detection mechanism; 103, moving groove; 201, clamping seat; 202, tightening assembly; 203, moving block; 204, positioning bolt; 205, clamping block; 206, clamping cavity; 207, clearance groove; 208, clearance notch; 301, outer clamping plate; 302, through hole; 303, sink groove; 304, gasket; 305, clamping hole; 401, inner clamping plate; 402, clamping groove; 501, limit plate; 502, sliding groove; 503, side clamping plate; 504, slider; 505, vertical plate; 506, limit bolt; 507, control cap; 508, control bolt.

[0037] Example:

[0038] As attached Figure 1-9 As shown, the utility model discloses a bolt strength detection device, including a base 101 and a clamping unit, a torque detection mechanism 102 and a clamping seat 201 are installed on the base 101, a tightening assembly 202 is installed at one end of the clamping seat 201 away from the torque detection mechanism 102, a clamping block 205 is slidably arranged in the clamping seat 201, the clamping block 205 is connected to the tightening assembly 202, and a T-shaped clamping cavity 206 is opened at one end of the clamping block 205 close to the torque detection mechanism 102, wherein the torque detection mechanism 102, the clamping seat 201 and the tightening assembly 202 can be a high-speed torque detection device of Rongjida Instrument with a model of GLS-500 The detection end, clamping seat 201 and tightening end published in the strong bolt axial force and torque composite detector are prior arts and need no further elaboration. A clearance groove 207 is provided on the side wall of the clamping block 205, and a clearance notch 208 is provided on the side wall of the clamping seat 201. The length of the clearance notch 208 along the circumference of the through hole 302 is greater than the length of the clearance groove 207. A movable groove 103 is provided on the base 101, and a movable block 203 is fixed to the bottom of the clamping seat 201. The movable block 203 is slidably fitted in the movable groove 103. A positioning bolt 204 is threadedly inserted on the clamping seat 201, and the end of the positioning bolt 204 abuts against the top of the base 101.

[0039] The clamping unit includes a limit plate 501, an inner clamping plate 401, an outer clamping plate 301 and a gasket 304. The outer clamping plate 301 is clamped and placed on the side of the clamping seat 201 close to the torque detection mechanism 102. The inner clamping plate 401 is inserted into the clamping cavity 206. The side wall of the inner clamping plate 401 away from the torque detection mechanism 102 is provided with a clamping groove 402 with a T-shaped cross-section. A slider 504 with a T-shaped cross-section is fixed to the side wall of the limit plate 501. The slider 504 slides in the clamping groove 402. A limit assembly is installed on the limit plate 501. The limit assembly includes a vertical plate 505 and a limit bolt 506. The vertical plate 505 is fixed to the top of the limit plate 501. The limit bolt 506 is threadedly inserted into the vertical plate 505, and the end of the limit bolt 506 abuts against the side wall of the inner clamping plate 401.

[0040] The bottom of the limit plate 501 is inverted V-shaped, and the size and shape of the inverted V-shape are adapted to the corners of the regular hexagon. Two sliding grooves 502 that are symmetrical and pass through from top to bottom are provided on the top of the limit plate 501. A side clamping plate 503 is slidably arranged in the sliding groove 502. The bottom edge of the side clamping plate 503 is lower than the bottom edge of the limit plate 501. A control component is provided on the side wall of the limit plate 501. The control component includes a control cap 507 and a control bolt 508. The control bolt 508 is rotatably installed in the limit plate 501, and the control bolt 508 is threadedly inserted into the side clamping plate 503. One end of the control bolt 508 passes through the limit plate 501, and passes through the clearance groove 207 and the clearance notch 208 and is fixed to the control cap 507.

[0041] Through holes 302 are provided on both the inner and outer card plates 401 and 301, and recessed grooves 303 coaxially arranged with the through holes 302 are provided on opposite sides of the inner and outer card plates 401 and 301, respectively. Gaskets 304 are placed in contact with the recessed grooves 303, and the center of the gaskets 304 has a clamping hole 305.

[0042] The specific implementation process is as follows:

[0043] When clamping and fixing bolts of different types, there is no need to replace the inner clamping plate 401, the outer clamping plate 301 and the limit plate 501. It is only necessary to adapt and replace the gasket 304 and the sleeve of the torque detection mechanism 102. After placing the gasket 304 that matches the bolt to be detected in the recessed groove 303 of the inner clamping plate 401, the end of the bolt is passed through the clamping hole 305 and the through hole 302, and then the sharp corner of the bolt head is facing upward to match the inverted V-shape at the bottom of the limit plate 501, and then the limit plate 501 is slid to abut against the head of the bolt to be detected, and then the limit bolt 506 is rotated to rotate until it is tightly against the inner clamping plate 401. At this time, the limit plate 501 is fixed above the head of the bolt to be detected and abuts against the head of the bolt to be detected. At this time, the inner clamping plate 401 and the limit plate 501 are integrally inserted and placed in the clamping cavity 206, and the control bolt 508 is passed through the gap. The opening 208 and the give way groove 207 are formed, and then the control cap 507 is rotated to make the side clamp plate 503 clamp and fix the head of the bolt to be detected. Then, the outer clamp plate 301 is mounted on the end of the bolt to be detected through the through hole 302 of the outer clamp plate 301, and then the outer clamp plate 301 is clamped on the clamping seat 201. At this time, a gasket 304 and a nut matched with the bolt to be detected are used to be mounted on the end of the bolt to be detected, and the gasket 304 is abutted against the recessed groove 303 of the outer clamp plate 301, and the nut is tightly abutted against the gasket 304. At this time, the bolt to be detected is clamped. After the clamping block 205 and the bolt head are completely tightened by the tightening assembly 202, the end of the bolt to be detected is driven to be inserted into the detection sleeve of the torque detection mechanism 102 by moving the clamping seat 201. The model of the detection sleeve needs to be replaced and adjusted according to the model of the bolt, and finally the torsional strength test of the bolt is completed.

[0044] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical scheme or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the technical scheme of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A bolt strength detection device, characterized in that: include A base, on which a torque detection mechanism and a clamping seat are installed, a tightening assembly is installed at one end of the clamping seat away from the torque detection mechanism, a clamping block is slidably arranged in the clamping seat, the clamping block is connected to the tightening assembly, and a T-shaped clamping cavity is opened at one end of the clamping block close to the torque detection mechanism; The clamping unit comprises a limit plate, an inner clamping plate, an outer clamping plate and a gasket, the outer clamping plate being clamped and placed on a side of the clamping seat close to the torque detection mechanism, the inner clamping plate being inserted in the clamping cavity, and the limit plate being slidably arranged on a side of the inner clamping plate away from the torque detection mechanism, a limit assembly is installed on the limit plate, the bottom of the limit plate is an inverted V-shape, the top of the limit plate is provided with two sliding grooves that are symmetrical and pass through from top to bottom, a side clamping plate is slidably arranged in the sliding groove, the bottom edge of the side clamping plate is lower than the bottom edge of the limit plate, and a control assembly is provided on the side wall of the limit plate, the control assembly is used to control the position of the side clamping plate, the inner clamping plate and the outer clamping plate are both provided with through holes, and sink grooves coaxially arranged with the through holes are respectively provided on the opposite sides of the inner clamping plate and the outer clamping plate, the gasket is abutted and placed in the sink groove, and the center of the gasket has a clamping hole.

2. A bolt strength detection device according to claim 1, characterized in that: A clamping groove with a T-shaped cross section is formed on the side wall of the inner clamping plate, and a sliding block with a T-shaped cross section is fixed to the side wall of the limiting plate, and the sliding block is slidably matched in the clamping groove.

3. A bolt strength detection device as claimed in claim 2, characterized in that: The limiting assembly includes a vertical plate and a limiting bolt. The vertical plate is fixed to the top of the limiting plate. The limiting bolt is threadedly inserted into the vertical plate, and the end of the limiting bolt abuts against the side wall of the inner clamping plate.

4. A bolt strength detection device as claimed in claim 1, characterized in that: The control assembly includes a control cap and a control bolt. The control bolt is rotatably installed in the limit plate and is threadedly inserted into the side clamping plate. One end of the control bolt passes through the limit plate and is fixed to the control cap.

5. A bolt strength detection device as claimed in claim 4, characterized in that: A clearance groove is formed on the side wall of the clamping block, a clearance notch is formed on the side wall of the clamping seat, and the control bolt passes through the clearance groove and the clearance notch.

6. A bolt strength detection device according to claim 1, characterized in that: A moving groove is provided on the base, a moving block is fixed on the bottom of the clamping seat, and the moving block is slidably matched in the moving groove.

7. A bolt strength detection device according to claim 6, characterized in that: A positioning bolt is threadedly inserted on the clamping seat, and the end of the positioning bolt abuts against the top of the base.

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