Magnetic powder detection tool for small rod parts

Abstract

The utility model provides a magnetic powder detection tool for small rod parts, which relates to the technical field of tool clamps and comprises a main shaft, and a thread is arranged on the surface of one end of the main shaft. According to the utility model, the two ends of a whole body of the main shaft and the insulating block are clamped between two electrode discs of magnetic powder detection equipment, the slide block is moved to an approximately appropriate position along the main shaft according to the length of a small-sized rod part to be detected, the inner hexagonal screw is tightened by using a hexagonal wrench, and the slide block is extruded and fixed on the surface of the main shaft, so that the small-sized rod part to be detected is detected. A small rod part to be detected is placed between one electrode disc of magnetic powder detection equipment and one end of a knob type movable pressing block; by rotating the knob type movable pressing block, a small rod part to be detected is fixed between the electrode disc and the knob type movable pressing block; by means of the design, the tool facilitates magnetic particle detection on the small-sized rod parts, product safety is guaranteed, and meanwhile the detection efficiency of the small-sized rod parts is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a magnetic particle detection tooling for small rod parts. Background Art

[0002] Magnetic particle testing is a conventional non-destructive testing method that uses magnetic phenomena to detect surface and near-surface defects of ferromagnetic material workpieces. Magnetic particle testing of small rod parts is generally carried out using a fixed magnetic particle flaw detector. When circumferential magnetization is generally performed by direct current flow, the part is clamped between two electrodes.

[0003] However, due to the small diameter of small rod parts, the longitudinal stress they can withstand is small. The clamping force may not be effectively controlled during the manual control of the electrode movement, which will produce impact force on the product and cause damage to the parts. In addition, batch inspection of small rod parts must be repeated clamping and loosening, and the inspection efficiency is very low.

[0004] Therefore, a magnetic particle inspection tool for small rod parts is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a magnetic particle detection tooling for small rod-type parts, comprising: a main shaft, a surface of one end of the main shaft is provided with a threaded wire, the surface of the threaded wire is provided with an insulating block through a threaded sleeve, the surface of the main shaft is provided with a length adjustment component, and one end of the length adjustment component is provided with a clamping detection component.

[0007] As a preferred embodiment, the length adjustment assembly includes a slider, one side of the slider is penetrated by an open slot, and the two sides of the open slot are respectively fixedly connected with a connecting plate 1 and a connecting plate 2.

[0008] As a preferred embodiment, two through holes are formed through the surface of the first connecting plate, and two threaded holes are formed through the surface of the second connecting plate.

[0009] As a preferred embodiment, the internal threads of the two threaded holes are embedded with hexagon socket screws, and the surfaces of the two hexagon socket screws are movably embedded inside the two through holes.

[0010] As a preferred implementation, the clamping detection assembly comprises a fixing column, a thread groove is formed through one side of the fixing column, and a knob-type movable clamping block is embedded in the internal thread of the thread groove.

[0011] As a preferred embodiment, the inner movable sleeve of the slider is arranged on the surface of the main shaft.

[0012] As a preferred implementation, the surface of the fixing column is fixedly connected to one end of the second connecting plate.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] The utility model has an insulating block made of PVC; the knob portion of the knob-type movable clamping block has no material requirements and can use conductive materials; all other structural materials are made of red copper, which is conducive to conductivity; the two ends of the main shaft and the insulating block are clamped between two electrode discs of the magnetic particle detection device as a whole, and according to the length of the small rod-like parts to be detected, the hexagonal wrench is used to rotate the hexagonal screw to reduce the tightness of the slider sleeve on the surface of the main shaft, and then the slider is moved along the main shaft to a roughly suitable position, and then the hexagonal wrench is used to tighten the hexagonal screw, the hexagonal screw is used as a fastener to reduce the distance between the connecting plate 1 and the connecting plate 2, reduce the opening size of the opening groove, squeeze and fix the slider on the surface of the main shaft, and place the small rod-like parts to be detected on one of the electrode discs of the magnetic particle detection device, that is, the motor disc connected to one end of the main shaft equipped with the insulating block and the knob-type movable clamping block. The electric current enters the small rod-like parts to be inspected along the end of the main shaft where the insulating block is not installed, passes through the slider, the second connecting plate, the fixed column and the knob-type movable clamping block, and the electric current establishes a closed circumferential magnetic field inside and around the parts. When the magnetic lines of force pass through the ferromagnetic material and at its magnetic discontinuity, a leakage magnetic field will be generated to form magnetic poles, and magnetic suspension will be sprayed on the surface of the small rod-like parts to be inspected. The magnetic powder in the magnetic suspension will be adsorbed on the magnetic discontinuity on the surface of the parts. The design of this tooling is convenient for magnetic powder inspection of small rod-like parts, ensures product safety, and improves the inspection efficiency of small rod-like parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 An overview schematic diagram of a magnetic particle inspection tooling for small rod-type parts provided by the utility model;

[0016] Figure 2 A schematic diagram of a spindle of a magnetic particle inspection tool for small rod-type parts provided by the utility model;

[0017] Figure 3 An exploded schematic diagram of a length adjustment component and a clamping detection component of a magnetic particle detection tooling for small rod-like parts provided by the utility model;

[0018] Figure 4 The utility model provides a schematic diagram of the connection of a clamping detection component of a magnetic particle detection tooling for small rod-type parts.

[0019] Legend:

[0020] 1. Spindle; 101. Threaded wire; 102. Insulating block; 2. Length adjustment assembly; 201. Slider; 202. Open slot; 203. Connecting plate 1; 204. Connecting plate 2; 205. Through hole; 206. Threaded hole; 207. Hexagon socket screw; 3. Clamping detection assembly; 301. Fixed column; 302. Threaded slot; 303. Knob-type movable clamping block. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 The utility model provides a technical solution: a magnetic particle detection tool for small rod parts, comprising: a spindle 1, a threaded wire 101 is arranged on the surface of one end of the spindle 1, an insulating block 102 is arranged on the surface of the threaded wire 101 through a threaded sleeve, a length adjustment component 2 is arranged on the surface of the spindle 1, and a clamping detection component 3 is arranged at one end of the length adjustment component 2.

[0023] Specifically: the two ends of the main shaft 1 and the insulating block 102 are clamped between the two electrode disks of the magnetic particle detection equipment. According to the length of the small rod-like parts to be detected, the slider 201 is moved along the main shaft 1 to a roughly suitable position, and the hexagonal screw 207 is tightened with a hexagonal wrench to squeeze and fix the slider 201 on the surface of the main shaft 1. The small rod-like parts to be detected are placed between one of the electrode disks of the magnetic particle detection equipment and one end of the knob-type movable clamping block 303; the small rod-like parts to be detected are fixed between the electrode disk and the knob-type movable clamping block 303 by rotating the knob-type movable clamping block 303; the design of this tooling is convenient for magnetic particle detection of small rod-like parts, ensures product safety, and improves the detection efficiency of small rod-like parts.

[0024] In one embodiment, the length adjustment component 2 includes a slider 201 , one side of the slider 201 is penetrated by an open slot 202 , and two sides of the open slot 202 are fixedly connected to a connecting plate 1 203 and a connecting plate 2 204 .

[0025] Specifically: the hexagon socket screw 207 is used as a fastener. Turning the hexagon socket screw 207 can change the distance between the connecting plate 1 203 and the connecting plate 2 204, adjust the opening size of the opening slot 202, squeeze and fix the slider 201 on the surface of the main shaft 1, or slide the slider 201 on the surface of the main shaft 1.

[0026] In one embodiment, two through holes 205 are formed through the surface of the first connecting plate 203 , and two threaded holes 206 are formed through the surface of the second connecting plate 204 .

[0027] Specifically: the diameter of one end of the hexagon socket screw 207 is larger than the opening diameter of the through hole 205. The hexagon socket screw 207 is inserted into the through hole 205 and the threaded hole 206 from one side of the through hole 205. The surface of the hexagon socket screw 207 cooperates with the internal thread of the threaded hole 206. The hexagon socket screw 207 is rotated, and the hexagon socket screw 207 pulls the connecting plate 1 203 to move toward the side of the connecting plate 2 204. The hexagon socket screw 207 is rotated in the opposite direction, and the connecting plate 1 203 moves away from the connecting plate 2 204.

[0028] In one embodiment, the internal threads of the two threaded holes 206 are embedded with hexagon socket screws 207 , and the two hexagon socket screws 207 are movably embedded in the interior of the two through holes 205 .

[0029] Specifically: the diameter of one end of the hexagon socket screw 207 is larger than the opening diameter of the through hole 205. The hexagon socket screw 207 is inserted into the through hole 205 and the threaded hole 206 from one side of the through hole 205. The surface of the hexagon socket screw 207 cooperates with the internal thread of the threaded hole 206. The hexagon socket screw 207 is rotated, and the hexagon socket screw 207 pulls the connecting plate 1 203 to move toward the side of the connecting plate 2 204. The hexagon socket screw 207 is rotated in the opposite direction, and the connecting plate 1 203 moves away from the connecting plate 2 204.

[0030] In one embodiment, the clamping detection assembly 3 includes a fixing column 301 , a thread groove 302 is formed through one side of the fixing column 301 , and a knob-type movable clamping block 303 is embedded in the internal thread of the thread groove 302 .

[0031] Specifically, by rotating the knob-type movable clamping block 303 , the knob-type movable clamping block 303 moves inside the thread groove 302 toward the small rod-like part to be inspected, and the small rod-like part to be inspected is fixed between the electrode disk and the knob-type movable clamping block 303 .

[0032] In one embodiment, the inner movably sleeve of the slider 201 is disposed on the surface of the main shaft 1 .

[0033] Specifically: the tightness between the slider 201 and the spindle 1 can be adjusted by rotating the hexagon socket screw 207, so that the slider 201 can move on the surface of the spindle 1, which is suitable for small column parts of different lengths, increasing the practicality of this tooling.

[0034] In one embodiment, a surface of the fixing column 301 is fixedly connected to one end of the second connecting plate 204 .

[0035] Specifically: the second connecting plate 204 supports the fixing column 301 , and current can flow from the second connecting plate 204 into the fixing column 301 .

[0036] Working principle: The insulating block 102 is made of PVC; the knob part of the knob-type movable clamping block 303 has no material requirements and can use conductive materials; all other structures are made of copper, which is conducive to conductivity; the two ends of the main shaft 1 and the insulating block 102 are clamped between the two electrode discs of the magnetic particle detection equipment as a whole, and according to the length of the small rod-like parts to be inspected, use a hexagonal wrench to turn the hexagonal screw 207 to reduce the tightness of the slider 201 on the surface of the main shaft 1, and then move the slider 201 along the main shaft 1 to a roughly suitable position, and then use a hexagonal wrench to tighten the hexagonal screw 207. The hexagonal screw 207 is used as a fastener to reduce the distance between the connecting plate 1 203 and the connecting plate 2 204, and the opening size of the opening groove 202 is reduced, and the slider 201 is squeezed and fixed on the surface of the main shaft 1, and the small rod-like parts to be inspected are placed on one of the electrode discs of the magnetic particle detection equipment, that is, the motor disc and the rotary disc connected to the end of the main shaft 1 equipped with the insulating block 102. The knob-type movable clamping block 303 is rotated to move the knob-type movable clamping block 303 toward the small rod-like parts to be inspected inside the thread groove 302, and the small rod-like parts to be inspected are fixed between the electrode disk and the knob-type movable clamping block 303; the magnetic particle detection equipment is started, and the current enters along the end of the main shaft 1 where the insulating block 102 is not installed, passes through the slider 201, the connecting plate 204, the fixed column 301 and the knob-type movable clamping block 303 to enter the small rod-like parts to be inspected, and the current establishes a closed circumferential magnetic field inside and around the parts. When the magnetic lines of force pass through the ferromagnetic material and at its magnetic discontinuity, a leakage magnetic field will be generated to form magnetic poles, and a magnetic suspension will be sprayed on the surface of the small rod-like parts to be inspected, and the magnetic powder in the magnetic suspension will be adsorbed on the magnetic discontinuity on the surface of the parts. The design of this tooling is convenient for magnetic particle detection of small rod-like parts, ensures product safety, and improves the detection efficiency of small rod-like parts.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A magnetic particle inspection tool for small rod parts, characterized in that: include: A main shaft (1), wherein a threaded wire (101) is disposed on the surface of one end of the main shaft (1), an insulating block (102) is disposed on the surface of the threaded wire (101) via a threaded sleeve, a length adjustment component (2) is disposed on the surface of the main shaft (1), and a clamping detection component (3) is disposed at one end of the length adjustment component (2).

2. The magnetic particle inspection tool for small rod parts according to claim 1 is characterized in that: The length adjustment component (2) comprises a slider (201), one side of the slider (201) is provided with an open slot (202), and the two sides of the open slot (202) are respectively fixedly connected with a connecting plate 1 (203) and a connecting plate 2 (204).

3. The magnetic particle inspection tool for small rod parts according to claim 2 is characterized in that: Two through holes (205) are formed through the surface of the first connecting plate (203), and two threaded holes (206) are formed through the surface of the second connecting plate (204).

4. The magnetic particle inspection tool for small rod parts according to claim 3 is characterized in that: The internal threads of the two threaded holes (206) are embedded with hexagon socket screws (207), and the two hexagon socket screws (207) are movably embedded in the inside of the two through holes (205).

5. The magnetic particle inspection tool for small rod parts according to claim 1 is characterized in that: The clamping detection assembly (3) comprises a fixing column (301), one side of which is provided with a thread groove (302), and the internal thread of the thread groove (302) is embedded with a knob-type movable clamping block (303).

6. The magnetic particle inspection tool for small rod parts according to claim 2, characterized in that: The inner movably sleeve of the slider (201) is arranged on the surface of the main shaft (1).

7. The magnetic particle inspection tool for small rod parts according to claim 5, characterized in that: The surface of the fixing column (301) is fixedly connected to one end of the second connecting plate (204).

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