Clamp for bolt detection
By designing a bolt detection fixture including a fixing base, a fixing clamp and an extrusion block, the problem of lack of appropriate clamping devices during bolt detection in the prior art is solved, and the accurate detection and safe detection of the tensile strength of the bolt is realized.
Patent Information
- Application Number
- CN202420724241.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-10
AI Technical Summary
The lack of appropriate bolt clamping devices in the prior art leads to the bolts being easily loosened during the detection process and even causing safety accidents.
A bolt detection fixture is designed, including a fixing base, a fixing clamp and an extrusion block. The anti-slip groove on the fixing clamp and the extrusion groove on the extrusion block fix the lower end of the bolt. The bottom of the fixing clamp and the extrusion block press down and fix the hexagon head of the bolt to ensure that the bolt does not move during the tensile test.
By layer clamping restrictions, ensure that the bolt does not move during tensile testing, thereby accurately testing the tensile strength of the bolt and improving the accuracy and safety of the detection.
Smart Images
Figure CN222599351U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bolt detection, in particular to a clamp for bolt detection. Background Art
[0002] In the assembly of mechanical parts, bolts are always used to fix or lock another component to fix it, which requires that the thread diameter of the bolt is perpendicular to the end face of the bolt. However, the manufactured bolts often have the thread diameter of the bolt not perpendicular to the end face of the bolt. When using such bolts to fix or lock, the contact surface of the two connected objects is too small and point contact is formed, which can easily cause looseness between the two fixed or locked objects and even cause safety accidents. There are many methods for detection in the prior art, but most of them lack corresponding bolt clamping devices. Workers use measuring tools to test various indicators of bolts, and errors are prone to occur when testing by hand.
[0003] During the inspection of bolts, since the bolts need to undergo a tensile test for strength, a clamp is required to fix and clamp the lower end of the bolt. Otherwise, when the upper end of the bolt is clamped and pulled up for inspection, the lower end of the bolt cannot be fixed and clamped, and the bolt is pulled upward and cannot be inspected. Utility Model Content
[0004] The disclosed embodiment relates to a fixture for bolt detection. When the bolt is subjected to a strength tensile test, the anti-slip groove on the fixed clamp block and the extrusion groove on the extrusion block will fix and clamp the lower end of the bolt, and the fixed clamp block will also be restricted by the limiting rod and the rectangular hole of the fixed base. At the same time, the anti-slip plate on the extrusion block is also restricted by the upward pull of the anti-slip groove. The fixed clamp block and the extrusion block are also connected to each other. The bottom of the fixed clamp block and the extrusion block will also press down and fix the hexagonal head of the bolt. In this way, the bolt is clamped and restricted layer by layer, and will not move when the bolt is pulled upward with force, thereby testing the tensile strength of the bolt.
[0005] In a first aspect of the present disclosure, a bolt detection fixture is provided, which specifically comprises: a fixed base; a groove is provided in the middle of the bottom of the inner cavity of the fixed base; a threaded hole is provided at the right end of the fixed base; a rectangular hole is provided at the left end of the fixed base; a fixed clamp is inserted into the rectangular hole at the left end of the fixed base; a fixed baffle is fixedly installed on the left side wall of the fixed baffle, and a pull ring is fixedly installed on the side wall of the fixed baffle;
[0006] The fixed clamp block is provided with symmetrical rod holes; the middle part of the right side wall of the fixed clamp block is provided with an arc-shaped anti-slip groove; the right side wall of the fixed clamp block is fixedly installed with symmetrical plug plates; a threaded rod is rotatably inserted into the threaded hole at the right end of the fixed base, and a stopper is fixedly installed at the right end of the threaded rod; a handle is fixedly installed on the side wall of the threaded rod stopper, and a bearing ring is fixedly installed at the inner circle of the threaded rod;
[0007] An extrusion block is fixedly installed on the outer ring of the bearing ring, an extrusion groove is opened on the side wall of the left end of the extrusion block, symmetrical slots are opened on the left side wall of the extrusion block, symmetrical guide blocks are fixedly installed on the bottom of the extrusion block, and anti-slip plates are fixedly installed on the front and rear side walls of the extrusion block respectively.
[0008] In at least some embodiments, the bottom of the inner cavity of the fixed base is provided with mutually parallel guide grooves, and mutually symmetrical ear plates are fixedly installed on the outer side walls at both ends of the fixed base, and screws penetrating the middle of the four ear plates are rotatably inserted.
[0009] In at least some embodiments, the left end of the top of the fixed base is provided with mutually symmetrical limiting holes, and limiting rods are inserted into the two limiting holes.
[0010] In at least some embodiments, fixing blocks are fixedly installed at both ends of the bottom of the inner cavity of the fixed base, and an anti-slip groove is opened in the middle of the right end of the fixing block.
[0011] The utility model provides a fixture for bolt detection, which has the following beneficial effects:
[0012] When the clamp in the utility model is in use and the bolt is subjected to a strength tensile test, the anti-slip groove on the fixed clamp block and the extrusion groove on the extrusion block will fix and clamp the lower end of the bolt, and the fixed clamp block will also be restricted by the restriction rod and the rectangular hole of the fixed base. At the same time, the anti-slip plate on the extrusion block is also restricted by the upward pull of the anti-slip groove. The fixed clamp block and the extrusion block are also connected to each other. The bottom of the fixed clamp block and the extrusion block will also press down and fix the hexagonal head of the bolt. In this way, the bolt is restricted by layer-by-layer clamping and will not move when the bolt is pulled upward with force, thereby testing the tensile strength of the bolt.
[0013] By grasping the pull ring on the fixed baffle and pushing it to the right, the anti-slip groove is affixed to the lower side wall of the bolt, and the extrusion groove is affixed to the right side wall of the lower end of the bolt. At this time, the anti-slip groove and the extrusion groove will fix and clamp the lower end of the bolt, and the bolt will not move during the upward tensile test, thereby accurately testing the tensile strength of the bolt. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.
[0015] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.
[0016] In the attached picture:
[0017] Figure 1 The schematic diagram of the upper left front axial structure of the present application is shown;
[0018] Figure 2 The schematic diagram of the upper right front axial structure of the present application is shown;
[0019] Figure 3 A schematic diagram of the disassembled structure of the fixed clamp block and the threaded rod of the present application is shown;
[0020] Figure 4 A schematic diagram of the explosion structure of the present application is shown.
[0021] Reference numerals list
[0022] 1. Fixed base; 101. Guide groove; 102. Ear plate; 103. Limiting hole; 104. Limiting rod; 105. Fixed block; 106. Anti-slip groove; 2. Fixed clamping block; 201. Fixed baffle; 202. Rod hole; 203. Anti-slip groove; 204. Insert plate; 3. Threaded rod; 301. Bearing ring; 302. Extrusion block; 303. Extrusion groove; 304. Slot; 305. Guide block; 306. Anti-slip plate. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of 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] Example 1: Please refer to Figures 1 to 4 :
[0025] The present embodiment proposes a fixture for bolt detection, comprising a fixed base 1; a groove is provided in the middle of the bottom of the inner cavity of the fixed base 1; the hexagonal head at the lower end of the bolt is inserted into the groove of the fixed base 1, and a through threaded hole is provided at the right end of the fixed base 1; a through rectangular hole is provided at the left end of the fixed base 1; a through fixed clamping block 2 is inserted into the rectangular hole at the left end of the fixed base 1; a fixed baffle 201 is fixedly installed on the left side wall of the fixed clamping block 2, and a pull ring is fixedly installed on the side wall of the fixed baffle 201; grabbing the pull ring on the fixed baffle 201 facilitates pushing and pulling the fixed clamping block 2 left and right, and when the fixed baffle 201 is attached to the side wall of the fixed base 1, the limiting hole 103 corresponds to the rod hole 202 up and down, and at this time, a limiting rod 104 is used to penetrate here to limit the fixed clamping block 2 to prevent the fixed clamping block 2 from being affected When the clamp 2 is touched and moved left and right, symmetrical rod holes 202 are provided on the fixed clamp block 2; an arc-shaped anti-skid groove 203 is provided in the middle of the right side wall of the fixed clamp block 2; the pull ring on the fixed baffle 201 is grasped and pushed to the right, and the anti-skid groove 203 is attached to the lower side wall of the bolt. At this time, the bottom of the fixed clamp block 2 is pressed down on the left end of the hexagonal head of the bolt, temporarily fixing and restricting the left end of the bolt, and symmetrical plug plates 204 are fixedly installed on the right side wall of the fixed clamp block 2; the plug plates 204 are inserted into the corresponding slots 304 to fix the fixed clamp block 2 and the extrusion block 302 together, and a threaded rod 3 is rotatably inserted into the threaded hole at the right end of the fixed base 1, and a stopper is fixedly installed on the right end of the threaded rod 3; a handle is fixedly installed on the side wall of the stopper of the threaded rod 3, and the handle on the threaded rod 3 is grasped for easy rotation.
[0026] Among them, the bottom of the inner cavity of the fixed base 1 is provided with mutually parallel guide grooves 101, and the outer side walls at both ends of the fixed base 1 are respectively fixedly installed with mutually symmetrical ear plates 102, and the middle parts of the four ear plates 102 are respectively rotatably inserted with penetrating screws, and are rotatably installed on the detection platform with the screws on the ear plates 102 to fix and restrict the fixed base 1, and the left end of the top of the fixed base 1 is provided with mutually symmetrical limiting holes 103, and limiting rods 104 are inserted in the two limiting holes 103, and fixed blocks 105 are respectively fixedly installed at both ends of the bottom of the inner cavity of the fixed base 1, and an anti-slip groove 106 is provided in the middle of the right end of the fixed block 105, and the anti-slip plate 306 is inserted into the anti-slip groove 106. When the anti-slip plate 306 is restricted, the extrusion block 302 will also be restricted. When the bolt is pulled upward, the extrusion block 302 cannot be lifted upward.
[0027] Among them, a bearing ring 301 is fixedly installed on the inner ring of the threaded rod 3, and an extrusion block 302 is fixedly installed on the outer ring of the bearing ring 301. An extrusion groove 303 is opened on the side wall of the left end of the extrusion block 302. Grasp the handle on the threaded rod 3 and rotate it to the left to push it, so that the extrusion groove 303 is in contact with the right end side wall of the lower end of the bolt. At this time, the bottom of the extrusion block 302 will be pressed down on the right end of the hexagonal head of the bolt, temporarily fixing and restricting the right end of the bolt. At this time, the slot 304 will be sleeved on the plug plate 204, so that the extrusion block 302 is fixedly connected to the fixed clamping block 2. Symmetrical slots 304 are provided on the left side wall of the extrusion block 302, and symmetrical guide blocks 305 are fixedly installed on the bottom of the extrusion block 302. The guide blocks 305 are slidably installed in the guide groove 101. When the extrusion block 302 slides left and right, the guide block 305 is restricted by the guide groove 101, and the extrusion block 302 can only slide left and right to prevent the extrusion block 302 from deviating or tilting when sliding left and right. The extrusion block 302 cannot fix and restrict the right end of the bolt, and anti-slip plates 306 are fixedly installed on the front and rear side walls of the extrusion block 302 respectively.
[0028] Embodiment 2, based on embodiment 1, as Figure 1 and Figure 4 As shown, symmetrical ear plates 102 are fixedly installed on the outer walls at both ends of the fixed base 1, and screws are inserted into the middle of the four ear plates 102. The ear plates 102 and the screws are removed, and then the fixed base 1 is directly welded on the test bench to fix and restrict the fixed base 1. At this time, the fixed base 1 will not move when it is touched or pulled upward. If the fixture is used all year round, once the screws on the ear plates 102 become loose, the entire fixed base 1 will be lifted and damaged.
[0029] The working principle of this embodiment is as follows: when in use, the hexagonal head at the lower end of the bolt is inserted into the groove of the fixed base 1, the pull ring on the fixed baffle 201 is grasped and pushed to the right, and the anti-slip groove 203 is in contact with the lower end side wall of the bolt. At this time, the bottom of the fixed clamping block 2 is pressed down on the left end of the hexagonal head of the bolt, and the left end of the bolt is temporarily fixed and restricted. At this time, when the fixed baffle 201 is in contact with the side wall of the fixed base 1, the limiting hole 103 corresponds to the rod hole 202 up and down. At this time, the limiting rod 104 is passed through here to limit the fixed clamping block 2, and then the handle on the threaded rod 3 is grasped and rotated to the left. Push, with the extrusion groove 303 abutting against the right side wall of the lower end of the bolt, at this time, the bottom of the extrusion block 302 will be pressed down on the right end of the hexagonal head of the bolt, temporarily fixing and restricting the right end of the bolt, at this time, the plug plate 204 is inserted into the corresponding slot 304, so that the extrusion block 302 is fixedly connected with the fixed clamping block 2, and the anti-drop plate 306 is inserted into the anti-drop groove 106. When the anti-drop plate 306 is restricted, the extrusion block 302 is also restricted. When the bolt is pulled upward, the extrusion block 302 cannot be lifted upward, and the fixed clamping block 2 and the extrusion block 302 fix and clamp the bolt.
[0030] In this article, there are a few points to note:
[0031] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.
[0032] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.
[0033] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.
Claims
1. A bolt detection fixture, comprising: A fixed base (1); a groove is provided in the middle of the bottom of the inner cavity of the fixed base (1); a threaded hole is provided at the right end of the fixed base (1); a rectangular hole is provided at the left end of the fixed base (1); it is characterized in that a fixed clamp (2) is inserted into the rectangular hole at the left end of the fixed base (1); a fixed baffle (201) is fixedly installed on the left side wall of the fixed clamp (2), and a pull ring is fixedly installed on the side wall of the fixed baffle (201); the fixed clamp (2) is provided with symmetrical rod holes (202); an arc-shaped anti-slip groove (203) is provided in the middle of the right side wall of the fixed clamp (2); a symmetrical plug plate (204) is fixedly installed on the right side wall of the fixed clamp (2); a threaded rod (3) is rotatably inserted into the threaded hole at the right end of the fixed base (1), and a stopper is fixedly installed on the right end of the threaded rod (3).
2. The bolt detection fixture according to claim 1, characterized in that: The bottom of the inner cavity of the fixed base (1) is provided with mutually parallel guide grooves (101), and the outer side walls at both ends of the fixed base (1) are respectively fixedly mounted with mutually symmetrical ear plates (102), and the middle parts of the four ear plates (102) are respectively rotatably inserted with penetrating screws.
3. The bolt detection fixture according to claim 1, characterized in that: The left end of the top of the fixed base (1) is provided with mutually symmetrical limiting holes (103), and limiting rods (104) are inserted into the two limiting holes (103).
4. The bolt detection fixture according to claim 1, characterized in that: Fixed blocks (105) are respectively fixedly installed at both ends of the bottom of the inner cavity of the fixed base (1), and an anti-slip groove (106) is opened in the middle of the right end of the fixed block (105).
5. The bolt detection fixture according to any one of claims 1 to 4, characterized in that: A bearing ring (301) is fixedly mounted on the inner ring of the threaded rod (3), and an extrusion block (302) is fixedly mounted on the outer ring of the bearing ring (301).
6. The bolt detection fixture according to claim 5, characterized in that: An extrusion groove (303) is provided on the side wall at the left end of the extrusion block (302), and mutually symmetrical slots (304) are provided on the left side wall of the extrusion block (302).
7. The bolt detection fixture according to claim 5, characterized in that: The bottom of the extrusion block (302) is fixedly mounted with mutually symmetrical guide blocks (305), and anti-slip plates (306) are respectively fixedly mounted on the front and rear side walls of the extrusion block (302).
8. The bolt detection fixture according to claim 1, characterized in that: A handle is fixedly mounted on the side wall of the stopper of the threaded rod (3).