Tool for measuring anti-shearing force of bolt
By designing a bolt-test shear resistance tool for measuring bolts including a test seat, fixing mechanism and protective cover, the problem that existing equipment cannot detect multi-size bolts and bolts are solved, and efficient testing and safe shearing process for bolts of different sizes is achieved.
Patent Information
- Application Number
- CN202421092949.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-05-20
AI Technical Summary
Existing bolt shear resistance testing equipment cannot effectively detect multi-size bolts, and stress release at the moment of shear can easily cause the bolt to bounce off, posing safety hazards.
A bolt shear resistance tooling including a test seat, a fixing mechanism and a protective cover is designed. The fixing mechanism can adapt to bolts of different sizes through components such as shear seats, through holes, inner grooves and fixed arc plates, and fix and cut the bolts through hydraulic presses and shear heads. The protective cover prevents the bolt from bounceing when the shear head cuts the bolts.
The device can easily test the shear resistance of bolts of different sizes, and effectively prevent the bolts from bounce off when cut through the protective cover, improving the safety and convenience of the test.
Smart Images
Figure CN222762012U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bolt shear resistance testing, in particular to a bolt shear resistance testing tool. Background Art
[0002] Bolt: A mechanical part, a cylindrical threaded fastener equipped with a nut. It is a type of fastener consisting of a head and a screw. It needs to be matched with a nut and is used to fasten two parts with through holes. This type of connection is called a bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated. Therefore, the bolt connection is a detachable connection. After the bolt is produced, it needs to be tested for shear resistance using a test fixture.
[0003] When in use, the above-mentioned device does not have a structure for detecting bolts of multiple sizes and preventing the bolts from bouncing off due to shear stress release, so that when the existing bolt shear force test equipment is in use, the fixing seats for the bolts are mostly fixed in size, and bolts of different sizes have their own fixing seats, so that when testing multiple bolts of different sizes, it is necessary to prepare multiple test seats for testing, and most of the existing test equipment does not have a protective cover. The stress release at the moment of bolt cutting can easily cause the bolts to bounce off and injure people, which is inconvenient to use. Based on the deficiencies of the existing technology, the utility model designs a tool for measuring the shear force of bolts. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a tool for measuring the shear resistance of bolts, which has the advantages of XXXX.
[0005] The utility model provides the following technical solution: a tool for measuring the shear resistance of bolts, comprising a test seat, a test table is arranged on the upper surface of the test seat, and a fixing mechanism is arranged on the upper surface of the test table for fixing bolts of different sizes;
[0006] The fixing mechanism includes a shear seat, a through hole, an inner groove and a fixed arc plate. The shear seat is fixedly connected to the upper surface of the test bench, the through hole is opened through the front of the shear seat, the inner groove is opened inside the shear seat, and the fixed arc plate slides and rises inside the inner groove.
[0007] As a preferred technical solution of the utility model, the fixing mechanism also includes a reinforcing plate, a telescopic rod and an electric cylinder. The reinforcing plate is fixedly connected to the front and back sides of the shear seat, the electric cylinder is fixedly connected to the upper surface of the shear seat, and the telescopic rod is arranged at the bottom of the electric cylinder.
[0008] As a preferred technical solution of the utility model, the bottom of the test seat is fixedly connected to a mounting base plate, the front of the test seat is provided with a control panel, the upper surface of the test seat is fixedly connected to a main frame, the top of the test seat is fixedly connected to a hydraulic press, the bottom of the hydraulic press is provided with a hydraulic arm, the bottom end of the hydraulic arm is fixedly connected to a mounting plate, the bottom of the mounting plate is fixedly connected to a shearing head, and a side groove is opened on the inner side of the main frame.
[0009] As a preferred technical solution of the utility model, a protective cover is slidably connected to the upper surface of the test bench, a clamping plate is fixedly connected to the bottom of the protective cover, two connecting plates are fixedly connected to the front of the test bench, a clamping block is fixedly connected to the inner side of the connecting plate, and a paddle is fixedly connected to the outer end of the connecting plate.
[0010] As a preferred technical solution of the utility model, the mounting plate is slidably connected to the inside of the side groove, and the hydraulic arm is arranged through the top of the main frame.
[0011] As a preferred technical solution of the utility model, the shearing head is movably raised and lowered on one side of the fixing mechanism, and the shearing head is arranged between the fixing mechanism and the shearing seat.
[0012] As a preferred technical solution of the utility model, the clamping plate is movably clamped on the inner side of the clamping block.
[0013] As a preferred technical solution of the utility model, the telescopic rod is fixedly connected to the top of the fixed arc plate, and the inner cavity of the inner groove is communicated with the through hole.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] 1. This kind of tooling for measuring the shear force resistance of bolts is performed by inserting the bolt into the through hole from the rear of the shear seat, and then operating the control panel to control the electric cylinder to extend the telescopic rod to push the fixed arc plate downward. During the downward movement of the fixed arc plate, it contacts the bolt in the through hole and presses down to fix it. After the fixation is completed, operate the control panel to control the hydraulic press to extend the hydraulic arm to push the mounting plate and the shear head downward under the limit of the side groove until the shear head contacts the bolt in the through hole and cuts it off, and observe the panel display data of the control panel. This device is convenient for shear force testing of bolts of different sizes.
[0016] 2. This kind of tooling for measuring the shear force resistance of bolts, after the bolts are fixed by the fixing mechanism, the protective cover is opened with one side facing the bolt and moved to be sleeved on the outside. During the movement and sleeve process of the protective cover, the bottom clamping plate also moves accordingly and enters between the two connecting plates until it is clamped into the clamping block. At this time, the shearing head moves down to shear the bolts. If the cut bolts pop out, the protective cover can quickly intercept them to prevent them from flying and injuring people. After the test is completed, the two paddles are pushed outward to make the connecting plate drive the clamping block to move outward to release the clamping of the clamping plate, and the protective cover and the cut bolts can be taken out. This device is convenient for preventing the cut bolts from popping out. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the rear view structure of the test seat of the utility model;
[0019] Figure 3 This is a schematic diagram of the connection structure of the main frame and the shearing head of the utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the test bench of the utility model;
[0021] Figure 5 It is a schematic diagram of the fixing mechanism structure of the utility model.
[0022] In the figure: 1. test seat; 101. mounting base plate; 102. control panel; 103. main frame; 104. hydraulic press; 105. hydraulic arm; 106. mounting plate; 107. shear head; 108. side groove; 2. test bench; 201. protective cover; 202. clamping plate; 203. connecting plate; 204. clamping block; 205. paddle; 3. fixing mechanism; 301. shear seat; 302. reinforcing plate; 303. through hole; 304. inner groove; 305. fixed arc plate; 306. telescopic rod; 307. electric cylinder. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figure 1-5A tool for measuring the shear force resistance of bolts comprises a test seat 1, a test bench 2 is arranged on the upper surface of the test seat 1, a fixing mechanism 3 for fixing bolts of different sizes is arranged on the upper surface of the test bench 2, a mounting plate 106 is slidably connected to the inside of a side groove 108, a hydraulic arm 105 is arranged through the top of a main frame 103, a shear head 107 is movably raised and lowered on one side of the fixing mechanism 3, the shear head 107 is arranged between the fixing mechanism 3 and the shear seat 301, a mounting base plate 101 is fixedly connected to the bottom of the test seat 1, a control panel 102 is arranged on the front of the test seat 1, a main frame 103 is fixedly connected to the upper surface of the test seat 1, a hydraulic press 104 is fixedly connected to the top of the test seat 1, a hydraulic arm 105 is arranged at the bottom of the hydraulic press 104, a bottom end of the hydraulic arm 105 is fixedly connected to a mounting plate 106, a bottom of the mounting plate 106 is fixedly connected to the shear head 107, and a side groove 108 is opened on the inner side of the main frame 103.
[0025] The fixing mechanism 3 includes a shear seat 301, a through hole 303, an inner groove 304 and a fixed arc plate 305. The shear seat 301 is fixedly connected to the upper surface of the test bench 2. The through hole 303 is opened through the front of the shear seat 301. The inner groove 304 is opened inside the shear seat 301. The fixed arc plate 305 slides and rises and falls inside the inner groove 304. The fixing mechanism 3 also includes a reinforcing plate 302, a telescopic rod 306 and an electric cylinder 307. The reinforcing plate 302 is fixedly connected to the front and back sides of the shear seat 301. The electric cylinder 307 is fixedly connected to the upper surface of the shear seat 301. The telescopic rod 306 is arranged at the bottom of the electric cylinder 307. The telescopic rod 306 is fixedly connected to the top of the fixed arc plate 305. The inner cavity of the inner groove 304 is communicated with the through hole 303.
[0026] By setting the through hole 303, it is convenient to place the bolts and use the shear head 107 to test the shear force resistance of the bolts. By setting the fixed arc plate 305, the telescopic rod 306 and the electric cylinder 307, it is convenient to clamp and fix bolts of different sizes for shear force resistance testing. By setting the reinforcing plate 302, the service life of the shear seat 301 can be improved.
[0027] A protective cover 201 is slidably connected to the upper surface of the test bench 2, a clamping plate 202 is fixedly connected to the bottom of the protective cover 201, two connecting plates 203 are fixedly connected to the front of the test bench 2, a clamping block 204 is fixedly connected to the inner side of the connecting plate 203, a paddle 205 is fixedly connected to the outer end of the connecting plate 203, and the clamping plate 202 is movably clamped to the inner side of the clamping block 204.
[0028] By setting the protective cover 201, when the shear head 107 cuts off the bolt, the protective cover 201 can quickly intercept the bolt that is bounced off due to the release of bolt stress to prevent injury. By setting the clamping plate 202 and the clamping block 204, the protective cover 201 can be fixed to prevent the protective cover 201 from being moved after intercepting the bolt.
[0029] Working principle: when a tool for measuring the shear force of bolts is used, in the initial state, the fixing mechanism 3 is first set on the top of the test seat 1, and the main frame 103 set on the top of the test seat 1 is installed with a mounting plate 106 and a shear head 107, and the hydraulic arm 105 connected to the top of the mounting plate 106 is controlled by the hydraulic press 104 to realize the lifting and lowering of the shear head 107 to test the shear force of the bolts, and the bottom of the protective cover 201 set on one side of the fixing mechanism 3 is connected with a clamping plate 202, and the clamping plate 202 is clamped on the clamping block 204 set on the inner side of the connecting plate 203, so as to prevent the sheared bolts from popping out;
[0030] When it is necessary to test the shear force resistance of bolts of different sizes, first insert the bolt into the through hole 303 from the rear of the shear seat 301, then operate the control panel 102 to control the electric cylinder 307 to extend the telescopic rod 306 to push the fixed arc plate 305 downward. During the downward movement of the fixed arc plate 305, it contacts the bolt in the through hole 303 and presses down to fix it. After the fixation is completed, operate the control panel 102 to control the hydraulic press 104 to extend the hydraulic arm 105 to push the mounting plate 106 and the shear head 107 to move downward under the limit of the side groove 108 until the shear head 107 contacts the bolt in the through hole 303 and cuts it off. Observe the panel display data of the control panel 102. The device is convenient for testing the shear force resistance of bolts of different sizes.
[0031] When it is necessary to prevent the sheared bolts from popping out, first wait for the fixing mechanism 3 to fix the bolts, then open the protective cover 201 with one side facing the bolts and move it to fit on the outside. During the movement and fitting of the protective cover 201, the bottom clamping plate 202 also moves into between the two connecting plates 203 until it is clamped into the clamping block 204. At this time, the shearing head 107 moves down to shear the bolts. If the cut bolts pop out, the protective cover 201 can quickly intercept them to prevent them from flying and injuring people. After the test is completed, the two paddles 205 are pushed outward to make the connecting plate 203 drive the clamping block 204 to move outward to release the clamping of the clamping plate 202, and the protective cover 201 and the cut bolts can be taken out. This device is convenient for preventing the sheared bolts from popping out.
[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A tool for measuring the shear resistance of a bolt, comprising a test seat (1), characterized in that: A test bench (2) is provided on the upper surface of the test seat (1), and a fixing mechanism (3) is provided on the upper surface of the test bench (2) for facilitating the fixing of bolts of different sizes; A fixing mechanism (3), the fixing mechanism (3) comprising a shear seat (301), a through hole (303), an inner groove (304) and a fixed arc plate (305), the shear seat (301) being fixedly connected to the upper surface of the test bench (2), the through hole (303) penetrating through the front surface of the shear seat (301), the inner groove (304) being provided inside the shear seat (301), and the fixed arc plate (305) slidingly rising and falling inside the inner groove (304).
2. A bolt shear resistance measuring tool according to claim 1, characterized in that: The fixing mechanism (3) further comprises a reinforcing plate (302), a telescopic rod (306) and an electric cylinder (307); the reinforcing plate (302) is fixedly connected to the front and back sides of the shear seat (301); the electric cylinder (307) is fixedly connected to the upper surface of the shear seat (301); and the telescopic rod (306) is arranged at the bottom of the electric cylinder (307).
3. A bolt shear resistance measuring tool according to claim 1, characterized in that: The bottom of the test seat (1) is fixedly connected to a mounting base plate (101), the front of the test seat (1) is provided with a control panel (102), the upper surface of the test seat (1) is fixedly connected to a main frame (103), the top of the test seat (1) is fixedly connected to a hydraulic press (104), the bottom of the hydraulic press (104) is provided with a hydraulic arm (105), the bottom end of the hydraulic arm (105) is fixedly connected to a mounting plate (106), the bottom of the mounting plate (106) is fixedly connected to a shear head (107), and a side groove (108) is provided on the inner side of the main frame (103).
4. A bolt shear resistance measuring tool according to claim 1, characterized in that: The upper surface of the test bench (2) is slidably connected to a protective cover (201), the bottom of the protective cover (201) is fixedly connected to a clamping plate (202), the front of the test bench (2) is fixedly connected to two connecting plates (203), the inner side of the connecting plate (203) is fixedly connected to a clamping block (204), and the outer end of the connecting plate (203) is fixedly connected to a paddle (205).
5. A bolt shear resistance measuring tool according to claim 3, characterized in that: The mounting plate (106) is slidably connected to the inside of the side groove (108), and the hydraulic arm (105) is arranged through the top of the main frame (103).
6. A bolt shear resistance measuring tool according to claim 3, characterized in that: The shearing head (107) is movably raised and lowered on one side of the fixing mechanism (3); the shearing head (107) is arranged between the fixing mechanism (3) and the shearing seat (301).
7. A bolt shear resistance measuring tool according to claim 4, characterized in that: The clamping plate (202) is movably clamped on the inner side of the clamping block (204).
8. The bolt shear resistance measuring tool according to claim 2, characterized in that: The telescopic rod (306) is fixedly connected to the top of the fixed arc plate (305), and the inner cavity of the inner groove (304) is communicated with the through hole (303).