CN218726883U - A magnetic particle flaw detector for multi-station detection - Google Patents

Abstract

The utility model discloses a magnetic powder flaw detection machine for multi-station detection, which comprises a frame, a conveying mechanism, a magnetic suspension liquid spraying mechanism and a magnetizing mechanism. The conveying mechanism includes a conveying roller, an annular track groove, a chain and a chain driving mechanism. The chain drive mechanism drives the chain to move along the track of the circular track groove. This device can carry out batch magnetization detection on shaft parts. The shaft parts are transported by the conveying roller and rotate through the magnetic suspension injection mechanism. Fewer or missing, improve the detection accuracy; during the process of transporting the magnetized shaft workpiece to the feeding end by the conveying mechanism, the worker can observe whether the shaft workpiece is defective, and can observe the surface of the shaft workpiece without manually turning the shaft workpiece Whether there are defects, it effectively reduces the labor intensity of workers, improves the working environment of workers, and improves work efficiency.

Description

A magnetic particle flaw detector for multi-station detection

technical field

The utility model relates to the technical field of magnetic particle flaw detection, in particular to a magnetic particle flaw detection machine for multi-station detection.

Background technique

Magnetic particle flaw detection uses the interaction between the leakage magnetic field at the defect of the workpiece and the magnetic powder. It uses the difference between the magnetic permeability of the surface of the steel product and the near-surface defects (such as cracks, slag inclusions, hairlines, etc.) and the magnetic permeability of the steel. After magnetization, these The magnetic field at the discontinuity of the material will be distorted, forming a part of the magnetic flux leakage, and the leakage magnetic field will be generated on the surface of the workpiece, thereby attracting the magnetic powder to form the magnetic powder accumulation at the defect - the magnetic trace, which shows the position and shape of the defect under appropriate lighting conditions , To observe and explain the accumulation of these magnetic particles, the magnetic particle flaw detection is realized.

Most of the magnetic particle flaw detection is a single-station structure, as disclosed in CN106404894, a kind of magnetic particle flaw detection facility is a single-station structure. The multi-station structure requires a transmission line, and the workpiece is transported through the transmission line. When passing through the magnetic suspension liquid injection equipment, the magnetic suspension liquid injection equipment sprays the magnetic suspension liquid onto the workpiece by spraying. Since the position of the injection head is constant Yes, when the amount of spraying is insufficient, it is easy to cause less or missing magnetic suspension at the bottom of the workpiece, which will affect the detection. Moreover, the existing magnetic particle flaw detection equipment needs to manually rotate the workpiece and visually detect the workpiece, which takes a long time and has low work efficiency.

Utility model content

Based on this, it is necessary to provide a multi-station magnetic particle flaw detector for the above technical problems.

In order to achieve the above purpose, the utility model provides a multi-station detection magnetic particle flaw detector, which includes a frame and a conveying mechanism installed on the frame, and a magnetic suspension injection mechanism is sequentially arranged on the frame along the conveying direction of the conveying mechanism And the magnetization mechanism, behind the magnetization mechanism is the detection station, which can detect the parts, and the degaussing device is installed after the detection station, which can demagnetize the parts; the conveying mechanism includes conveying rollers, ring track grooves, chains and chain drives The machine frame is fixed with two opposite ring-shaped track grooves, and the rollers are fixedly installed on the conveyor rollers rollingly connected with the ring-shaped track grooves. The conveyor rollers are arranged equidistantly along the track of the ring-shaped track grooves. The bearing seat and the chain are arranged in two rows. The chains are connected to the bearing seat through elastic connectors. The conveying roller is rotatably installed on the corresponding bearing seat. The chain drive mechanism drives the chain to move along the track of the circular track groove to make the convey The roller rotates through the magnetic suspension ejection mechanism.

Preferably, the magnetic suspension injection mechanism includes a main pipeline and a plurality of branch pipelines, the main pipeline communicates with the branch pipelines, the branch pipelines are arranged in sequence along the conveying direction of the conveying mechanism, and a plurality of magnetic suspension liquid injection heads are installed on the branch pipelines .

Preferably, the magnetization mechanism includes a U-shaped yoke, a clamping piece, a coil and a power push rod. The holder includes two silicon steel sheets and a plurality of conductive clamping rods fixed between the two silicon steel sheets. The silicon steel sheet is fixedly connected with the U-shaped yoke, and the power push rod corresponding to the clamping parts is installed on the frame. A push plate is installed at the output end of the power push rod, and the push plate is fixedly connected with the conductive clamping rod.

Preferably, the elastic connector is a spring telescopic rod.

Preferably, a silver contact is fixed on the end of the conductive clamping rod away from the push plate.

Preferably, the chain drive mechanism includes a driving shaft, a driven shaft and a drive motor, the driving shaft and the driven shaft are both rotatably mounted on the frame, two driving sprockets are installed on the driving shaft, and a Two driven sprockets, the driving sprocket and the driven sprocket are connected by a chain, and the driving motor is connected to the driving shaft through a belt transmission assembly.

Compared with the prior art, this technical solution has the following beneficial effects:

1. This device can carry out batch magnetization detection on shaft parts. The shaft parts are conveyed by the conveying roller and rotate through the magnetic suspension spraying mechanism. The magnetic suspension spray head sprays the magnetic suspension evenly on the shaft workpieces to avoid local magnetization The suspension is less or missing, which improves the detection accuracy;

2. During the process of transporting the magnetized shaft workpieces to the feeding end by the conveying mechanism, workers can observe whether there are defects in the shaft workpieces, and can observe whether there are defects on the surface of the shaft workpieces without manual turning of the shaft workpieces, which effectively reduces the The labor intensity of the workers is improved, the working environment of the workers is improved, and the work efficiency is improved.

Description of drawings

Fig. 1 is the structural representation of an embodiment of the utility model;

Fig. 2 is a sectional view along line A-A in Fig. 1;

In the figure, 1. frame; 2. conveying mechanism; 21. conveying roller; 22. circular track groove; 23. chain; 24. chain drive mechanism; 241. driving shaft; 242. driven shaft; 243. driving motor; 244, driving sprocket; 245, driven sprocket; 246, belt drive assembly; 25, roller; 26, bearing seat; 27, elastic connector; 3, magnetic suspension injection mechanism; 31, main pipeline; 32, branch Pipeline; 33. Magnetic suspension injection head; 4. Magnetization mechanism; 41. U-shaped yoke; 42. Clamping piece; 421. Silicon steel sheet; 422. Conductive clamping rod; 423. Silver contact; 43. Coil; 44. Power push rod; 45. Push plate; 5. Detection station; 6. Shaft workpiece.

Detailed ways

In order to make the above purpose, features and advantages of the present utility model more obvious and understandable, the specific implementation of the present utility model will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a full understanding of the present invention. However, the utility model can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below limit.

The embodiment of the present application provides a multi-station magnetic particle inspection machine, please refer to Figure 1 and Figure 2, the magnetic particle inspection machine includes a frame 1 and a conveying mechanism 2 installed on the frame 1, and the upper edge of the frame 1 is conveyed A magnetic suspension injection mechanism 3 and a magnetization mechanism 4 are arranged in sequence in the conveying direction of the mechanism 2. The detection station 5 is behind the magnetization mechanism 4. The inspection personnel can stand near the detection station 5 to inspect the parts. After the detection station 5 A degaussing device can also be provided to demagnetize the parts; the conveying mechanism 2 includes a conveying roller 21, an annular track groove 22, a chain 23 and a chain drive mechanism 24, and two oppositely arranged annular orbit grooves 22 are fixed on the frame 1, and the conveying roller 21 is fixedly installed with the roller 25 that is rollingly connected with the annular track groove 22, and the delivery roller 21 is arranged equidistantly along the track of the annular track groove 22. Bearing blocks 26 are installed at both ends of the delivery roller 21, and the chain 23 is arranged in two rows. 23 are all connected with bearing block 26 by elastic connector 27, and chain 23 is belt attachment chain 23, and elastic connector 27 is installed on the annex of chain 23, and elastic connector 27 selects spring telescopic rod for use, can be convenient to traction conveying roller 21 motions, At the same time, the conveying roller 21 can be pulled down by elastic force so that the lower end of the conveying roller 21 is rollingly connected with the upper chute section of the annular track groove 22, so as to ensure that the conveying roller 21 can drive the workpiece to roll, and the conveying roller 21 is rotatably installed on the bearing seat 26 corresponding to it. , two adjacent conveyor rollers 21 can jointly carry and lift a shaft workpiece 6, and when the conveyor roller 21 rotates, the shaft workpiece 6 carried by it can be driven to rotate by friction; the chain drive mechanism 24 drives the chain 23 along the circular track groove 22 The annular track groove 22 orbits, so that the conveying roller 21 rotates through the magnetic suspension injection mechanism 3 and the detection station 5; the magnetic suspension injection mechanism 3 sprays the magnetic suspension on the shaft workpiece 6 conveyed by the conveying roller 21, and then The magnetization mechanism 4 magnetizes the shaft workpiece 6 , and then inspectors detect the shaft workpiece 6 passing by.

In order to facilitate the injection of magnetic suspension liquid to the shaft workpiece 6, the magnetic suspension liquid injection mechanism 3 is set to include a main pipe 31 and a plurality of branch pipes 32. Liquid, the output end of the main pipeline 31 communicates with the branch pipeline 32, and the branch pipelines 32 are arranged in sequence along the conveying direction of the conveying mechanism 2, and a plurality of magnetic suspension injection heads 33 are installed on the branch pipelines 32. The magnetic suspension storage container delivers the magnetic suspension to the main pipeline 31, and the main pipeline 31 delivers the magnetic suspension to the branch pipeline 32, and the magnetic suspension is sprayed on the shaft workpiece 6 by the magnetic suspension spray head 33, and the shaft workpiece With the rotation of 6, the magnetic suspension can be evenly sprayed on the shaft workpiece 6;

In order to magnetize the shaft workpiece 6 transported on the conveying roller 21, the magnetization mechanism 4 is set to include a U-shaped yoke 41, a clamping member 42, a coil 43 and a power push rod 44, and the coil 43 is wound on the U-shaped yoke 41. At both ends of the upper part, both ends of the top of the U-shaped yoke 41 are fixed with clamping parts 42. The clamping parts 42 include two silicon steel sheets 421 and a plurality of conductive clamping rods 422 fixed between the two silicon steel sheets 421. The silicon steel sheets 421 is fixedly connected with U-shaped yoke 41, and the conductive clamping rod 422 is connected to alternating current, which can generate a circumferential magnetic field on the workpiece after clamping the workpiece, and the two ends of the coil 43 are connected to alternating current, which can generate an axial magnetic field on the workpiece; A power push rod 44 corresponding to the clamping part 42 is installed on the frame 1. The power push rod 44 is selected from an air cylinder, and can also be an electric cylinder or a hydraulic cylinder. The output end of the power push rod 44 is equipped with a push plate 45. It is fixedly connected with the conductive clamping rod 422 . The conductive clamping rod 422 is made of brass, and two silicon steel sheets 421 are inlaid and fixed on the upper and lower ends of the conductive clamping rod 422 respectively. The silicon steel sheet 421 can play the role of attracting magnetism, so that the magnetic force is concentrated.

A silver contact 423 is fixed on the end of the conductive clamping rod 422 away from the push plate 45 . The silver contact 423 can prevent the detected workpiece from being burned or electric shock.

Chain driving mechanism 24 comprises driving shaft 241, driven shaft 242 and driving motor 243, and driving shaft 241 and driven shaft 242 are all installed on the frame 1 by bearing rotation, and two driving sprockets 244 are installed on the driving shaft 241, Two driven sprockets 245 are installed on the driven shaft 242 , the driving sprocket 244 and the driven sprocket 245 are connected by a chain 23 , and the drive motor 243 is connected to the driving shaft 241 through a belt drive assembly 246 . The driving motor 243 is a servo motor, which can drive the conveying roller 21 and the workpiece carried by it to move a predetermined distance.

During work, the shaft workpiece 6 to be detected is placed between two adjacent conveying rollers 21 at the feeding end of the conveying mechanism 2. In this embodiment, three shaft parts can be placed; then the drive motor 243 is started, and the drive motor 243 passes through The belt drive assembly 246 drives the driving shaft 241 to rotate, and the driving shaft 241 drives the two chains 23, the driven sprocket 245 and the driven shaft 242 through two driving sprockets 244 to move, and under the traction of the chain 23 and the elastic connector 27, The chain 23 and the elastic connector 27 drive the conveying roller 21 to move in the circular passage in the circular track. Under the action of the gravity of the conveying roller 21 itself, the conveying roller 21 will contact the linear passage on the upper layer of the circular track, and then roll in the circular track. Under the support of the ring track to the roller 25, the conveying roller 21 can move smoothly, and the conveying roller 21 carries the shaft workpiece 6 and drives the shaft workpiece 6 to rotate at the same time, so that the shaft workpiece 6 rotates through the magnetic suspension injection mechanism 3;

When the shaft workpiece 6 passes through the magnetic suspension liquid injection mechanism 3, the main pipeline 31 conveys the magnetic suspension liquid to the branch pipe 32, and the magnetic suspension liquid is sprayed on the shaft type workpiece 6 by the magnetic suspension liquid injection head 33. As the shaft type workpiece 6 Rotation, the magnetic suspension can be evenly sprayed on the shaft workpiece 6;

When the conveying mechanism 2 transports the shaft workpiece 6 to the magnetizing mechanism 4, the driving motor 243 stops working, and the two power push rods 44 work synchronously, driving the push plates 45 to move closer together, and the push plates 45 push the conductive clamping rod 422 to move, The conductive clamping rod 422 clamps the shaft workpiece 6;

Then the two ends of the coil 43 are connected with low-voltage high-current alternating current, and the U-shaped yoke 41, the silicon steel sheet 421 and the shaft workpiece 6 form a ring-shaped magnetic circuit, which passes along the axial direction of the shaft workpiece 6 to generate an axial magnetic field; at the same time , the two ends of the conductive clamping rod 422 are connected to alternating current, so that a low-voltage high-current alternating current is passed through the shaft workpiece 6, thereby generating a circumferential magnetic field on the shaft workpiece 6, and the axial magnetic field and the circumferential direction of the shaft workpiece 6 The magnetic fields are superimposed on each other, so that the magnetic force is concentrated, so that the cracks on the shaft workpiece 6 are clearly visible, and the shaft workpiece 6 obtains a stable, uniform, high-strength circumferential magnetic field and axial magnetic field at the same time. This circumferential and longitudinal composite magnetization method makes The magnetic force is concentrated, the power consumption is low, the magnetic field has no blind zone, and the sensitivity is high. It can detect any crack or damage in any position and shape on the shaft workpiece 6 at one time;

Subsequently, the two power push rods 44 work synchronously to drive the push plate 45 away from each other, the conductive clamping rod 422 no longer clamps the shaft workpiece 6, and the drive motor 243 is started again, and the conveying mechanism 2 transports the magnetized shaft workpiece 6 To the unloading end, the shaft workpiece 6 rotates through the detection station 5 during the period, and the worker can observe whether the shaft workpiece 6 is defective. It is not necessary for the worker to manually turn over the shaft workpiece 6 to observe whether there is a defect on the surface of the shaft workpiece 6, effectively reducing the The labor intensity of the workers is improved, the working environment of the workers is improved, and the work efficiency is improved; a degaussing device can be installed between the detection station 5 and the feeding end of the conveying mechanism 2 to degauss the parts.

The technical features of the above embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be It is considered to be within the range described in this specification.

The above examples only express several implementations of the utility model, and the description thereof is more specific and detailed, but it should not be understood as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial ", "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying No device or element must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrated; may be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediary, and may be an internal communication between two elements or an interactive relationship between two elements, unless otherwise stated Clearly defined. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first feature and the second feature through an intermediary indirect contact. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions are for the purpose of illustration only and are not intended to represent the only embodiment.

Claims (6)

1. A magnetic particle flaw detection machine for multi-station detection, including a frame (1) and a conveying mechanism (2) installed on the frame (1), and the frame (1) is sequentially moved along the conveying direction of the conveying mechanism (2). A magnetic suspension injection mechanism (3) and a magnetization mechanism (4) are provided, and it is characterized in that the conveying mechanism (2) includes a conveying roller (21), an annular track groove (22), a chain (23) and a chain driving mechanism (24), the frame (1) is fixed with two oppositely arranged annular track grooves (22), the conveyor roller (21) is fixedly equipped with rollers (25) rollingly connected with the annular track groove (22), and the conveyor roller (21) Arranged equidistantly along the track of the circular track groove (22), bearing housings (26) are installed at both ends of the conveying roller (21), the chains (23) are arranged in two rows, and the chains (23) are all passed through elastic connectors (27) is connected with the bearing seat (26), and the conveying roller (21) is rotatably installed on the corresponding bearing seat (26), and the chain drive mechanism (24) drives the chain (23) along the circular track groove (22). (22) track movement, so that the conveying roller (21) rotates through the magnetic suspension injection mechanism (3). 2. The magnetic particle flaw detection machine for multi-station detection according to claim 1, characterized in that, the magnetic suspension injection mechanism (3) includes a main pipeline (31) and a plurality of branch pipelines (32), the main pipeline ( 31) It communicates with branch pipes (32), and the branch pipes (32) are arranged sequentially along the conveying direction of the conveying mechanism (2), and multiple magnetic suspension injection heads (33) are installed on the branch pipes (32). 3. The magnetic particle flaw detector for multi-station detection according to claim 1, characterized in that the magnetization mechanism (4) includes a U-shaped yoke (41), a clamp (42), a coil (43) and The power push rod (44), the coil (43) is wound and arranged on both ends of the upper part of the U-shaped yoke (41), the top ends of the U-shaped yoke (41) are fixed with clamping parts (42), and the clamping parts (42 ) includes two silicon steel sheets (421) and a plurality of conductive clamping rods (422) fixed between the two silicon steel sheets (421), the silicon steel sheet (421) is fixedly connected with the U-shaped yoke (41), and the frame ( 1) A power push rod (44) corresponding to the clamping piece (42) is installed on the top, and a push plate (45) is installed at the output end of the power push rod (44), and the push plate (45) is connected with the conductive clamping rod ( 422) Fixed connection. 4. The magnetic particle flaw detector for multi-station detection according to claim 1, characterized in that, the elastic connecting member (27) is a spring telescopic rod. 5 . The magnetic particle flaw detector for multi-station detection according to claim 3 , characterized in that, a silver contact ( 423 ) is fixed at the end of the conductive clamping rod ( 422 ) away from the push plate ( 45 ). 6. The magnetic particle flaw detector for multi-station detection according to claim 1, characterized in that, the chain driving mechanism (24) includes a driving shaft (241), a driven shaft (242) and a driving motor (243), Driving shaft (241) and driven shaft (242) are all rotatably installed on the frame (1), and two driving sprockets (244) are installed on the driving shaft (241), and two driving sprockets (244) are installed on the driven shaft (242). A driven sprocket (245), the driving sprocket (244) and the driven sprocket (245) are connected by a chain (23), and the driving motor (243) is driven by the belt drive assembly (246) and the driving shaft (241) connect.

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