Clamping mechanism of magnetic particle flaw detector

Abstract

The utility model discloses a clamping mechanism of a magnetic particle flaw detector, which relates to the technical field of magnetic particle flaw detection and comprises a base, supporting vertical plates are arranged on two sides of the surface of the inner wall of the base, limiting sliding rods are slidably mounted on the surfaces of the supporting vertical plates, compression springs are mounted on the surfaces of the limiting sliding rods, and limiting plates are arranged at the front ends of the limiting sliding rods. A limiting plate is arranged on the surface of the front end of the limiting sliding rod, a pull ring is arranged on the surface of the front end of the limiting plate, a threaded extension rod is spirally installed on the surface of the front end of the limiting sliding rod, and a rotating block is arranged on the surface of the threaded extension rod. According to the clamping device, the fixed clamping head can be driven to rapidly clamp a workpiece, the mounting speed of the workpiece is increased, through the arrangement of the threaded extension rod, the workpiece easy to slip can be further clamped, loosening and falling of the workpiece are avoided, and the clamping angle of the fixed clamping head can be adjusted through rotation.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic particle flaw detection, in particular to a clamping mechanism for a magnetic particle flaw detection machine. Background Art

[0002] Magnetic particle inspection utilizes the interaction between the leakage magnetic field at the defects of the workpiece and the magnetic powder. It utilizes the difference in the magnetic permeability of the surface and near-surface defects of steel products and the magnetic permeability of steel. After magnetization, the magnetic field at the discontinuities of these materials will be distorted, forming a leakage magnetic field on the surface of the workpiece where some magnetic flux leaks, thereby attracting magnetic powder to form magnetic powder accumulation at the defects - magnetic traces. Under appropriate lighting conditions, the defect position and shape are revealed. By observing and interpreting the accumulation of these magnetic powders, magnetic particle inspection is achieved.

[0003] For example, the patent document with application number 202123405164.7 discloses a clamping device for a magnetic particle flaw detector. The utility model relates to the technical field of magnetic particle flaw detection, and specifically to a clamping device for a magnetic particle flaw detector, including a main structure and an adjustment structure. The adjustment structure is fixedly connected to the main structure, the vertical adjustment component is fixedly connected to the main structure, the slide is rotatably connected to the vertical adjustment component, the fixed seat is fixedly connected to the slide, the support seat is fixedly connected to the slide, the screw is rotatably connected to the fixed seat, the nut is threadedly connected to the screw, the front and rear adjustment component is slidably connected to the left and right adjustment component, and the clamping part is connected to the front and rear adjustment component. The parts are fixedly connected, and when in use, the clamping part clamps the workpiece, and the screw rotates in the slide groove through the fixed seat and the support seat, so that the nut moves in the slide groove and drives the corresponding parts to move, thereby realizing the adjustment of the left and right positions. The vertical adjustment component and the front and rear adjustment component respectively adjust the vertical and front and rear positions of the workpiece, thereby solving the problem that the device has certain limitations and cannot be applied to special-shaped workpieces. However, when the clamping device of the magnetic particle flaw detector is used to clamp the workpiece for flaw detection, it is necessary to use a screw to drive the chuck forward to clamp the workpiece. When a large number of workpieces need to be clamped and flaw detected, the workload will be increased and the work efficiency will be reduced.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a clamping mechanism for a magnetic particle flaw detector is proposed. Utility Model Content

[0005] The utility model aims to provide a clamping mechanism for a magnetic particle flaw detector to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamping mechanism of a magnetic particle flaw detector, comprising a base, support vertical plates are arranged on both sides of the inner wall surface of the base, and a limit slide bar is slidably installed on the surface of the support vertical plate, a compression spring is installed on the surface of the limit slide bar, and a limit plate is arranged at the front end of the limit slide bar, and a pull ring is arranged on the front end surface of the limit plate, a threaded extension rod is spirally installed on the front end surface of the limit slide bar, and a rotating block is arranged on the surface of the threaded extension rod.

[0007] Preferably, a rotation limit plate is provided on the front end surface of the threaded extension rod, and a positioning slide bar is slidably mounted on the surface of the rotation limit plate.

[0008] Preferably, a connecting sleeve is provided at the rear end of the positioning slide rod, and a fixing chuck is provided at the rear end of the connecting sleeve.

[0009] Preferably, a threaded connector is provided inside the connecting sleeve, and the threaded connector is spirally connected to the threaded extension rod.

[0010] Preferably, support frames are provided on both sides of the upper end surface of the base, and connecting plates are provided on the upper end surfaces of the support frames.

[0011] Preferably, a spiral transmission rod is spirally installed in the middle of the upper end surface of the connecting plate, and a rotating cover is provided at the lower end of the spiral transmission rod.

[0012] Preferably, a rotating bearing is provided on the front end surface of the spiral transmission rod, and a supporting plate is provided on the surface of the rotating bearing.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is provided with a base, a supporting plate, a limit slide bar, a compression spring, a limit plate, a pull ring, a threaded extension rod and a rotating block. The setting of the compression spring can drive the fixed chuck to quickly clamp the workpiece, thereby improving the installation speed of the workpiece and the working efficiency of magnetic particle flaw detection. The setting of the threaded extension rod can further clamp the workpiece that is easy to slide to prevent it from loosening and falling. The clamping angle of the fixed chuck can also be adjusted by rotation to improve the fitting rate between the fixed chuck and the workpiece.

[0015] 2. The utility model can facilitate the positioning and installation of the fixed chuck by setting the fixed chuck, the connecting sleeve, the threaded connector, the positioning slide rod and the rotating limit plate, so that the suitable fixed chuck can be replaced according to the workpieces of different shapes, and the workpiece can be prevented from falling due to the mismatch of the fixed chuck;

[0016] 3. The utility model can support the workpiece with a fixed front end through the arrangement of a support frame, a connecting plate, a spiral transmission rod, a rotating cover, a rotating bearing, and a supporting plate, so as to facilitate the user to clamp the workpiece, and also prevent the workpiece from loosening and falling when clamping, causing damage to the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the clamping device of the utility model;

[0019] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the support plate of the utility model.

[0021] In the figure: 1. base; 2. supporting vertical plate; 201. limiting slide bar; 202. compression spring; 203. limiting plate; 204. pull ring; 205. threaded extension rod; 206. rotating block; 3. fixing chuck; 301. connecting sleeve; 302. threaded connector; 303. positioning slide bar; 304. rotating limiting plate; 4. supporting frame; 401. connecting plate; 402. spiral transmission rod; 403. rotating cover; 404. rotating bearing; 405. supporting plate. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figure 1-Figure 2 As shown, a clamping mechanism of a magnetic particle flaw detector includes support vertical plates 2 arranged on both sides of the inner wall surface of a base 1, and a limit slide bar 201 is slidably installed on the surface of the support vertical plate 2. The advantage of this arrangement is that the movement direction of the fixed clamp 3 can be limited by the arrangement of the limit slide bar 201.

[0024] Furthermore, a compression spring 202 is installed on the surface of the limit slide rod 201, and a limit plate 203 is arranged at the front end of the limit slide rod 201, and a pull ring 204 is arranged on the front end surface of the limit plate 203. The advantage of this arrangement is that through the arrangement of the compression spring 202, the fixed chuck 3 can be driven to quickly clamp the workpiece, thereby increasing the installation speed of the workpiece and improving the working efficiency of magnetic particle inspection.

[0025] Furthermore, a threaded extension rod 205 is spirally installed on the front end surface of the limiting slide rod 201, and a rotating block 206 is provided on the surface of the threaded extension rod 205. The advantage of this arrangement is that, through the arrangement of the threaded extension rod 205, a workpiece that is easy to slide can be further clamped to prevent it from loosening and falling, and the clamping angle of the fixed chuck 3 can also be adjusted by rotation to improve the fitting rate between the fixed chuck 3 and the workpiece.

[0026] like Figure 3-Figure 4 As shown, the front end surface of the threaded extension rod 205 is provided with a rotating limit plate 304, and a positioning slide rod 303 is slidably installed on the surface of the rotating limit plate 304. The advantage of this arrangement is that through the arrangement of the rotating limit plate 304, the positioning installation of the fixed chuck 3 can be facilitated, so that it is possible to replace the appropriate fixed chuck 3 according to workpieces of different shapes, thereby avoiding the falling of the workpiece due to the mismatch of the fixed chuck 3.

[0027] Furthermore, a connecting sleeve 301 is provided at the rear end of the positioning slide rod 303, and a fixing clamp 3 is provided at the rear end of the connecting sleeve 301. A threaded connector 302 is provided inside the connecting sleeve 301, and the threaded connector 302 and the threaded extension rod 205 are spirally connected. The advantage of this arrangement is that the fixing clamp 3 can be fixed to the front end of the threaded extension rod 205 through the setting of the threaded connector 302.

[0028] Furthermore, support frames 4 are arranged on both sides of the upper end surface of the base 1, and a connecting plate 401 is arranged on the upper end surface of the support frame 4, a spiral transmission rod 402 is spirally installed in the middle of the upper end surface of the connecting plate 401, and a rotating cover 403 is arranged at the lower end of the spiral transmission rod 402. The advantage of this arrangement is that through the arrangement of the spiral transmission rod 402, the height of the support plate 405 can be controlled according to the size of the workpiece, so as to facilitate the clamping of the workpiece.

[0029] Furthermore, a rotating bearing 404 is provided on the front end surface of the spiral transmission rod 402, and a supporting plate 405 is provided on the surface of the rotating bearing 404. The advantage of this arrangement is that the workpiece with the fixed front end can be supported by the arrangement of the supporting plate 405, which is convenient for the user to clamp, and also can prevent the workpiece from loosening and falling when clamping, causing damage to the workpiece.

[0030] Working principle: When using the clamping mechanism of the magnetic particle flaw detector, first, according to the size and shape of the workpiece to be clamped, insert the appropriate fixed chuck 3 into the interior of the rotating limit plate 304 through the positioning slide bar 303, and then complete the replacement of the fixed chuck 3 by rotating the threaded connector 302 into the front end of the threaded extension rod 205, place the workpiece on the surface of the support plate 405, pull the pull ring 204 backward to drive the limit slide bar 201 forward to open the fixed chuck 3, and then drive the spiral transmission rod 402 to raise the height of the support plate 405 by rotating the rotating cover 403, release the pull ring 204, and compress the spring 202 to clamp the workpiece by resetting. After the clamping is completed, if the workpiece is found to be loose, the threaded extension rod 205 can be extended by rotating the rotating block 206 to further clamp the workpiece, and then perform magnetic particle flaw detection. This is the working principle of the clamping mechanism of the magnetic particle flaw detector.

Claims

1. A clamping mechanism for a magnetic particle flaw detector, comprising a base (1), characterized in that: Support uprights (2) are provided on both sides of the inner wall surface of the base (1), and a limit slide bar (201) is slidably installed on the surface of the support uprights (2), a compression spring (202) is installed on the surface of the limit slide bar (201), and a limit plate (203) is provided at the front end of the limit slide bar (201), and a pull ring (204) is provided on the front end surface of the limit plate (203), a threaded extension rod (205) is spirally installed on the front end surface of the limit slide bar (201), and a rotating block (206) is provided on the surface of the threaded extension rod (205).

2. The clamping mechanism of a magnetic particle flaw detector according to claim 1, characterized in that: A rotation limiting plate (304) is arranged on the front end surface of the threaded extension rod (205), and a positioning slide bar (303) is slidably mounted on the surface of the rotation limiting plate (304).

3. The clamping mechanism of a magnetic particle flaw detector according to claim 2, characterized in that: A connecting sleeve (301) is provided at the rear end of the positioning slide rod (303), and a fixing clamp (3) is provided at the rear end of the connecting sleeve (301).

4. The clamping mechanism of a magnetic particle flaw detector according to claim 3, characterized in that: A threaded connector (302) is disposed inside the connecting sleeve (301), and the threaded connector (302) and the threaded extension rod (205) are spirally connected.

5. The clamping mechanism of a magnetic particle flaw detector according to claim 1, characterized in that: Support frames (4) are provided on both sides of the upper end surface of the base (1), and a connecting plate (401) is provided on the upper end surface of the support frame (4).

6. The clamping mechanism of a magnetic particle flaw detector according to claim 5, characterized in that: A spiral transmission rod (402) is spirally mounted in the middle of the upper end surface of the connection plate (401), and a rotating cover (403) is arranged at the lower end of the spiral transmission rod (402).

7. The clamping mechanism of a magnetic particle flaw detector according to claim 6, characterized in that: A rotating bearing (404) is disposed on the front end surface of the spiral transmission rod (402), and a supporting plate (405) is disposed on the surface of the rotating bearing (404).

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