Fastener strength detection device

Abstract

The utility model relates to the technical field of fastener strength detection, and discloses a fastener strength detection device which comprises a working table and a bottom table fixedly connected to the bottom end of the working table, a protection mechanism is arranged at the top end of the working table, a detection mechanism is arranged above the protection mechanism, a handle is rotated anticlockwise, a threaded rod is driven to rotate, and the threaded rod is driven to rotate. The two fixing inserting plates are separated from each other, then the bolt is placed between the two fixing inserting plates, then the handle is rotated clockwise, the threaded plate is driven to be attached to the bolt, and the bolt can be better fixed through the attaching self-locking performance between threads on the outer wall of the threaded plate and the bolt; in this way, bolts of different specifications can be detected and fixed, then the hydraulic cylinder is started, the hydraulic cylinder makes contact with the top end of the bolt, then the hydraulic cylinder continues to move downwards, the fixed bolt is driven to move downwards, the pressure sensor is extruded, detection data is transmitted to a display screen, and therefore limit pressure bearing data of the bolt can be recorded.

Description

Technical Field

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

[0002] Fasteners refer to parts made mainly of metal materials such as steel, which are used to connect and fasten components. Bolts are common. During production, it is necessary to conduct random inspections on fasteners produced in the same batch to test whether their strength and other parameters meet the design requirements. During the inspection, at least one end of the fastener needs to be fixed to test the force.

[0003] A search of CN210982076U discloses a fastener strength testing device, which is provided with a transparent plastic tube and a rubber ring. After the fastener is clamped in the clamping groove of the first torsion column and the second torsion column, the transparent plastic tube can be pushed down along the top of the crossbeam until the bottom of the transparent plastic tube fits with the rubber ring on the top of the box body. Then, the pushing of the transparent plastic tube is stopped, so that the transparent plastic tube separates the first torsion column and the second torsion column from the outside world, and the hydraulic pump is started to start strength testing of the fastener. Compared with the traditional method, this method can isolate the fastener being tested from the outside world, and reduce the probability of flying chips caused by sudden breakage of the fastener during the testing process to cause harm to the testing personnel.

[0004] When the bolts are inspected and fixed in the detection device, the first torsion column and the second torsion column are used for fixing. However, the first torsion column and the second torsion column can only fix bolts of the same size. Therefore, when bolts of other sizes need to be inspected, they cannot be used, which makes the applicability of the detection device low.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] In order to solve the technical problem of low applicability of the detection device, the basic concept of the technical solution adopted by the utility model is:

[0007] A fastener strength detection device comprises a workbench and a bottom platform fixedly connected to the bottom end of the workbench, a protective mechanism is arranged at the top of the workbench, a detection mechanism is arranged above the protective mechanism, and the detection mechanism comprises a fixing plate fixedly connected to the top end of the workbench:

[0008] The outer wall of the fixing plate is provided with a through groove, and the inner wall of the through groove is slidably penetrated by a first sliding rod, and the outer wall of the first sliding rod is slidably connected to the first sliding block, and the outer wall of the first sliding block is provided with a threaded hole, and the inner wall of the threaded hole is threadedly connected to a threaded rod, one end of the threaded rod is rotatably connected to a connecting plate through a bearing, and the connecting plate is fixedly connected to a fixed plugging plate, and the inner outer wall of the fixed plugging plate is fixedly connected to a threaded plate, and the threaded rod is fixedly connected to a handle, the top end of the workbench is fixedly connected to a supporting frame, the supporting frame is fixedly connected to a hydraulic cylinder, the top end of the supporting frame is fixedly connected to a display screen, the top end of the workbench is fixedly connected to a pressure sensor, the bottom end of the connecting plate is fixedly connected to a limiting slide plate, and the top end of the workbench is provided with a limiting slide groove, and the outer wall of the limiting slide plate is slidably connected to the inner wall of the limiting slide groove.

[0009] As a preferred embodiment of the utility model, the protective mechanism includes a second sliding rod, a sliding groove is opened at the top of the workbench, one end of the second sliding rod is fixedly connected to the inner wall of the sliding groove, the outer wall of the second sliding rod is slidably connected to the second slider, the top of the second slider is fixedly connected to a protective cover, and the end of the second sliding rod away from the inner wall of the sliding groove is fixedly connected to a limiting plate.

[0010] As a preferred embodiment of the utility model, the fixed plate, the first sliding rod, the first sliding block, the threaded rod, the connecting plate, the fixed plug plate and the threaded plate are all provided in two groups and arranged relatively to each other, wherein the outer wall of one fixed plug plate is provided with a through hole slide groove, and the outer wall of the other fixed plug plate passes through the through hole slide groove.

[0011] As a preferred embodiment of the utility model, the output end of the hydraulic cylinder is fixedly connected with a pressure plate, and the inner wall of the through groove formed on the outer wall of the fixed plate fits snugly with the outer wall of the first sliding block.

[0012] As a preferred embodiment of the present utility model, there are two second slide bars and two second slide blocks respectively, and the second slide bars and the second slide blocks are distributed on the top of the workbench in a bilaterally symmetrical structure.

[0013] As a preferred embodiment of the present invention, the inner wall of the slide groove provided on the top of the workbench fits snugly with the outer wall of the second sliding block.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model, the handle is rotated counterclockwise to drive the threaded rod to rotate, and when the threaded rod rotates, the connecting plate and the fixed plug plate will be driven to move to the left and right sides, so that the two fixed plug plates are separated from each other, and then the bolt is placed between the two fixed plug plates, and then the handle is rotated clockwise again to drive the threaded rod to rotate, thereby driving the two fixed plug plates to approach each other, until the threaded plate inside them is driven to fit with the bolt, and the bolt can be better fixed through the self-locking property of the fit between the threads of the outer wall of the threaded plate and the bolt, so that bolts of different specifications can be detected and fixed, and then the hydraulic cylinder is started, and its output end will extend downward until it contacts the top part of the bolt, and then continue to move downward, driving the fixed bolt to move downward, at this time, the threaded rod will be driven downward to move downward through the sliding connection between the first slider and the first slide rod, and then the bottom end of the bolt will squeeze the pressure sensor, and then until the bolt is bent, and the pressure sensor at this time will transmit the detection data to the display screen, so as to record the ultimate bearing pressure data of the bolt, thereby completing the detection of the bolt.

[0016] According to the utility model, after the bolts are fixed, the protective cover can be pulled close to the support frame. At this time, the protective cover will be moved through the sliding connection between the second slider and the second slide rod until the protective cover covers all the bolts being fixed. In this way, the protective effect can be achieved to prevent the bolts from breaking and causing injuries to the staff during the detection of bent bolts.

[0017] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the attached picture:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the detection mechanism of the utility model;

[0022] Figure 4 This is a schematic diagram of the protection mechanism structure of the utility model

[0023] In the figure: 1, workbench; 2, base; 31, detection mechanism; 311, fixed plate; 312, first slide bar; 313, first slider; 314, threaded rod; 315, connecting plate; 316, fixed plug plate; 317, threaded plate; 318, handle; 319, support frame; 3110, hydraulic cylinder; 3111, display screen; 3112, pressure sensor; 3113, limit slide bar; 32, protection mechanism; 321, second slide bar; 322, second slider; 323, limit plate; 324, protection cover. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0025] like Figures 1 to 4 As shown, a fastener strength detection device includes a workbench 1, a base 2 fixedly connected to the bottom end of the workbench 1, a protective mechanism 32 is arranged at the top of the workbench 1, a detection mechanism 31 is arranged above the protective mechanism 32, and the detection mechanism 31 includes a fixed plate 311 fixedly connected to the top end of the workbench 1, a through groove is arranged on the outer wall of the fixed plate 311, a first slide bar 312 is slidably penetrated through the inner wall of the through groove, a first slider 313 is slidably connected to the outer wall of the first slide bar 312, a threaded hole is arranged on the outer wall of the first slider 313, a threaded rod 314 is threadedly connected to the inner wall of the threaded hole, and one end of the threaded rod 314 is rotatably connected through a bearing There is a connecting plate 315, the connecting plate 315 is fixedly connected to a fixed plug plate 316, the inner and outer walls of the fixed plug plate 316 are fixedly connected to a threaded plate 317, the threaded rod 314 is fixedly connected to a handle 318, the top of the workbench 1 is fixedly connected to a support frame 319, the support frame 319 is fixedly connected to a hydraulic cylinder 3110, the top of the support frame 319 is fixedly connected to a display screen 3111, the top of the workbench 1 is fixedly connected to a pressure sensor 3112, the bottom end of the connecting plate 315 is fixedly connected to a limiting slide 3113, a limiting slide groove is provided at the top of the workbench 1, and the outer wall of the limiting slide 3113 is slidably connected to the inner wall of the limiting slide groove.

[0026] Furthermore, the fixing plate 311, the first sliding rod 312, the first sliding block 313, the threaded rod 314, the connecting plate 315, the fixing plug plate 316 and the threaded plate 317 are all provided in two groups and arranged opposite to each other, wherein the outer wall of one fixing plug plate 316 is provided with a through hole slot, and the outer wall of the other fixing plug plate 316 penetrates the through hole slot. In this way, the two fixing plug plates 316 can move closer to each other, thereby fixing bolts of different specifications and providing good enclosure and limiting for the bolt fasteners.

[0027] Furthermore, a pressure plate is fixedly connected to the output end of the hydraulic cylinder 3110, and the inner wall of the through slot opened on the outer wall of the fixed plate 311 fits snugly with the outer wall of the first slider 313. By matching the first slider 313 with the through slot, the stability of the hydraulic cylinder 3110 during the downward pressure application process can be improved.

[0028] The protection mechanism 32 includes a second slide bar 321. A slide groove is provided at the top of the workbench 1. One end of the second slide bar 321 is fixedly connected to the inner wall of the slide groove. The outer wall of the second slide bar 321 is slidably connected to a second slider 322. The top of the second slider 322 is fixedly connected to a protection cover 324. The end of the second slide bar 321 away from the inner wall of the slide groove is fixedly connected to a limiting plate 323.

[0029] Furthermore, there are two second slide bars 321 and two second sliders 322 respectively, and the second slide bars 321 and the second sliders 322 are distributed on the top of the workbench 1 in a left-right symmetrical structure, so as to synchronously support and move the left and right sides of the protective cover 324, thereby improving the stability of the protective cover 324 during movement.

[0030] Furthermore, the inner wall of the slide groove opened at the top of the workbench 1 fits snugly with the outer wall of the second sliding block 322, thereby improving the stability of the protective cover 324 during movement and maintaining the protective safety during the bolt detection process.

[0031] The implementation principle of a fastener strength detection device of the present embodiment is as follows: first, open the protective cover 324, then turn the handle 318 counterclockwise to drive the threaded rod 314 to rotate. When the threaded rod 314 rotates, it will drive the connecting plate 315 and the fixed plug plate 316 to move to the left and right, so that the two fixed plug plates 316 are away from each other, and then the bolt is placed between the two fixed plug plates 316, and then the handle 318 is turned clockwise again to drive the threaded rod 314 to rotate, thereby driving the two fixed plug plates 316 to move closer to each other until the threaded plate 317 inside it is fitted with the bolt. The self-locking property between the thread on the outer wall of the threaded plate 317 and the bolt can better The bolt is fixed, so that bolts of different specifications can be detected and fixed. Then the hydraulic cylinder 3110 is started, and its output end will extend downward until it contacts the top of the bolt, and then continue to move downward, driving the fixed bolt to move downward. At this time, the threaded rod 314 will be driven downward through the sliding connection between the first slider 313 and the first slider 312, and then the bottom end of the bolt will squeeze the pressure sensor 3112 (model TJL-1B) until the bolt is bent. At this time, the pressure sensor 3112 will transmit the detection data to the display screen 3111, so as to record the ultimate pressure bearing data of the bolt, thereby completing the bolt detection work.

[0032] After the bolts are fixed, the protective cover 324 can be pulled closer to the support frame 319. At this time, the protective cover 324 will move through the sliding connection between the second slider 322 and the second slide rod 321 until the protective cover 324 covers all the bolts being fixed. In this way, the protective function can be completed to prevent the bolts from breaking and causing harm to the staff during the inspection of the bent bolts.

Claims

1. A fastener strength detection device, comprising a workbench and a base fixedly connected to the bottom end of the workbench, characterized in that: A protective mechanism is provided on the top of the workbench, and a detection mechanism is provided above the protective mechanism. The detection mechanism includes a fixed plate fixedly connected to the top of the workbench: The outer wall of the fixed plate is provided with a through groove, and the inner wall of the through groove is slidably penetrated by a first sliding rod, the outer wall of the first sliding rod is slidably connected to the first sliding block, the outer wall of the first sliding block is provided with a threaded hole, the inner wall of the threaded hole is threadedly connected to a threaded rod, one end of the threaded rod is rotatably connected to a connecting plate, the connecting plate is fixedly connected to a fixed plug plate, the inner outer wall of the fixed plug plate is fixedly connected to a threaded plate, the threaded rod is fixedly connected to a handle, the top end of the workbench is fixedly connected to a supporting frame, the supporting frame is fixedly connected to a hydraulic cylinder, the top end of the workbench is fixedly connected to a pressure sensor, the bottom end of the connecting plate is fixedly connected to a limiting slide plate, the top end of the workbench is provided with a limiting slide groove, and the outer wall of the limiting slide plate is slidably connected to the inner wall of the limiting slide groove.

2. A fastener strength detection device according to claim 1, characterized in that: The protective mechanism includes a second sliding rod, a sliding groove is opened at the top of the workbench, one end of the second sliding rod is fixedly connected to the inner wall of the sliding groove, the outer wall of the second sliding rod is slidably connected to the second slider, the top of the second slider is fixedly connected to a protective cover, and the end of the second sliding rod away from the inner wall of the sliding groove is fixedly connected to a limiting plate.

3. A fastener strength detection device according to claim 1, characterized in that: The fixed plate, the first sliding rod, the first sliding block, the threaded rod, the connecting plate, the fixed plug plate and the threaded plate are each provided in two groups and arranged relatively, wherein the outer wall of one fixed plug plate is provided with a through hole slide groove, and the outer wall of the other fixed plug plate passes through the through hole slide groove.

4. A fastener strength detection device according to claim 1, characterized in that: The output end of the hydraulic cylinder is fixedly connected with a pressure plate, and the inner wall of the through groove formed on the outer wall of the fixed plate fits closely with the outer wall of the first sliding block.

5. A fastener strength detection device according to claim 2, characterized in that: There are two second slide bars and two second slide blocks respectively, and the second slide bars and the second slide blocks are distributed on the top of the workbench in a left-right symmetrical structure.

6. A fastener strength detection device according to claim 2, characterized in that: The inner wall of the slide groove provided on the top of the workbench fits closely with the outer wall of the second sliding block.

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