A magnetic particle flaw detector for detecting a ring-shaped workpiece

Abstract

The utility model discloses a kind of magnetic particle flaw detector of detecting annular workpiece, including machine warehouse and collection box;The bottom of machine warehouse is equipped with discharge port, discharge port is fixed with discharge pipe, collection box is placed in the bottom discharge port below machine warehouse, collection box top is provided with box cover, and box cover is equipped with inlet on it;Discharge pipe both sides are respectively fixed with guide rail, and two guide columns are fixed on box cover, and two guide columns are guided with two guide rails and are matched;The end of guide rail is closed and is arc-shaped, and guide column is limited with guide rail end and is matched to complete the butt joint of discharge pipe and box cover inlet.The utility model has the advantages that the space between discharge port and collection box is filled, and the collection box is accurately butt-jointed with discharge pipe.

Description

Technical Field

[0001] This utility model relates to the field of flaw detection technology, specifically a magnetic particle flaw detector for inspecting ring-shaped workpieces. Background Technology

[0002] Magnetic particle testing is a widely used non-destructive testing method, mainly used to detect discontinuities on and near the surface of ferromagnetic materials.

[0003] The core principle of magnetic particle testing is based on magnetism and the phenomenon of leakage magnetic fields. The entire process can be divided into three steps: pretreatment → magnetization → application of magnetic particles → magnetic particle aggregation and display → post-processing.

[0004] After being magnetized, the ring-shaped part is conveyed by the conveying mechanism to the magnetic powder area for applying magnetic powder. During the application of magnetic powder, some magnetic powder will not be attracted by the magnetized ring-shaped part. This part of the magnetic powder falls into the machine chamber, is collected by the machine chamber, and is discharged from the discharge port at the bottom of the machine chamber.

[0005] To collect this magnetic powder, the magnetic powder discharged from the outlet at the bottom of the machine is collected by a collection mechanism placed below the outlet. However, there is a space between the outlet and the collection mechanism, which allows the falling magnetic powder to escape, resulting in a problem of magnetic powder overflowing from the collection mechanism.

[0006] In view of this, we propose a magnetic particle flaw detector for inspecting ring-shaped workpieces. Utility Model Content

[0007] The purpose of this invention is to provide a magnetic particle flaw detector for inspecting ring-shaped workpieces, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a magnetic particle flaw detector for inspecting ring-shaped workpieces, comprising a machine compartment and a collection box;

[0009] The bottom of the machine compartment is provided with a discharge port, and a discharge pipe is fixed at the discharge port. The collection box is placed below the discharge port at the bottom of the machine compartment, and a box cover is provided on the top of the collection box. A material inlet is provided on the box cover.

[0010] Guide rails are fixed on both sides of the discharge pipe, and two guide posts are fixed on the box cover. The two guide posts are guided and cooperate with the two guide rails.

[0011] The guide rail is closed at the end and is arc-shaped. The guide post is matched with the end of the guide rail to complete the docking of the discharge pipe and the inlet of the box cover.

[0012] Preferably, the bottom of the machine compartment is a downward trapezoid, and the discharge port is located at the lowest point of the trapezoid.

[0013] Preferably, the guide rail entry end is shaped like an outward octagon.

[0014] Preferably, a rubber ring is provided at the outlet end of the discharge pipe, and a docking ring is fixed at the inlet of the box cover;

[0015] The outer periphery of the docking ring is an annular inclined surface, and the top of the docking ring is an annular plane. The top of the docking ring is pressed and fitted with the rubber ring.

[0016] Preferably, a threaded annular groove is provided on the outer periphery of the outlet end of the discharge pipe, and a threaded ring is fixed at the top of the rubber ring, with the threaded ring and the threaded annular groove being threadedly connected.

[0017] Preferably, the inner circumference of the discharge pipe, the inner circumference of the rubber ring, and the inner circumference of the docking ring are aligned.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model, by setting up a discharge pipe, guide rail and guide column, has the advantages of filling the space between the discharge port and the collection box, and the pushed-in collection box accurately aligning with the discharge pipe. It solves the problem that the space between the discharge port and the collection mechanism causes the falling magnetic powder to have room to escape, and the magnetic powder collection may overflow the collection mechanism.

[0020] 2. By setting a rubber ring and a docking ring, this utility model has the advantage of tightly fitting the discharge pipe with the inlet on the box cover, reducing material leakage when recycling materials. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention in its collection state;

[0022] Figure 2 This is a schematic diagram of the overall structure of the present invention in the removed or pushed-in state.

[0023] Figure 3 This is an exploded view of the collection mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the docking structure of the collection mechanism of this utility model;

[0025] Figure 5 This is a cross-sectional view of the connection structure of the discharge pipe of this utility model.

[0026] In the diagram: 100, machine compartment; 200, collection box; 300, box cover; 400, discharge pipe; 500, guide rail; 600, docking ring; 700, guide column;

[0027] 401. Threaded ring; 402. Rubber ring; 403. Threaded ring groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The present invention provides two embodiments.

[0030] Example 1

[0031] Please see Figures 1 to 4 A magnetic particle inspection machine for inspecting ring-shaped workpieces, the magnetic particle inspection machine comprising:

[0032] Magnetization system: responsible for generating the magnetic field required to detect defects.

[0033] Operating system: Responsible for supporting and moving the workpiece.

[0034] Magnetic Powder Application and Recovery System: Responsible for uniformly applying magnetic powder and magnetic suspension to the workpiece and recovering it for reuse. The magnetic powder and magnetic suspension are stored in a magnetic suspension tank; a stirring pump continuously agitates the magnetic suspension; the spraying system, including spray guns and nozzles, uses a pump to uniformly spray the magnetic suspension onto the magnetized workpiece surface.

[0035] Electrical control system.

[0036] The magnetized ring is conveyed above the machine compartment 100 by the operating system. The ring passes through the magnetic powder application point, where magnetic powder is applied to the magnetized ring. The excess magnetic powder falls into the machine compartment 100.

[0037] It includes a machine compartment 100 and a collection box 200; the machine compartment 100 belongs to the recycling system, and the bottom of the machine compartment 100 has a discharge port, and a discharge pipe 400 is fixed at the discharge port.

[0038] In this embodiment, the bottom of the machine compartment 100 is a downward-facing trapezoid, and the discharge port is located at the lowest point of the trapezoid. The material entering the machine compartment 100 moves to the discharge port due to gravity and the shape of the bottom of the machine compartment 100 and is discharged from the discharge pipe 400.

[0039] The collection box 200 is placed below the discharge port at the bottom of the machine compartment 100. The top of the collection box 200 is equipped with a box cover 300, and the box cover 300 has a feed port. The material discharged from the discharge pipe 400 enters the collection box 200 through the feed port on the box cover 300.

[0040] Guide rails 500 are fixed on both sides of the discharge pipe 400, and two guide posts 700 are fixed on the box cover 300. The two guide posts 700 guide and cooperate with the two guide rails 500. The ends of the guide rails 500 are closed and arc-shaped, and the guide posts 700 are limited to the ends of the guide rails 500 to complete the docking of the discharge pipe 400 and the inlet of the box cover 300. When the collection box 200 is pushed into the bottom of the machine compartment 100 below the discharge port, the two guide posts 700 enter from the inlet ends of the two guide rails 500 respectively. The collection box 200 is pushed in steadily until the guide posts 700 contact the ends of the guide rails 500 and then stop. At this time, the discharge pipe 400 docks with the inlet of the box cover 300.

[0041] In this embodiment, the guide rail 500 has an outward-pointing inlet, forming a large opening to facilitate the guide post 700 entering the guide rail 500.

[0042] This utility model, by setting up a discharge pipe 400, a guide rail 500 and a guide column 700, has the advantages of filling the space between the discharge port and the collection box 200, and ensuring that the pushed-in collection box 200 is accurately aligned with the discharge pipe 400. This solves the problem that the space between the discharge port and the collection mechanism causes the falling magnetic powder to have room to escape, and the magnetic powder collection may overflow the collection mechanism.

[0043] Example 2

[0044] Please see Figures 3 to 5 A magnetic particle flaw detector for inspecting ring-shaped workpieces includes a rubber ring 402 at the outlet end of a discharge pipe 400 and a mating ring 600 fixed at the inlet of a cover 300. The mating ring 600 has an annular inclined surface on its outer circumference and an annular flat surface at its top, with the top of the mating ring 600 pressing against the rubber ring 402. When the collection box 200 is pushed into the bottom of the machine compartment 100 below the discharge port, the rubber ring 402 passes along the annular inclined surface of the mating ring 600, being compressed until the collection box 200 reaches a designated position. The compressed rubber ring 402 then abuts against the annular flat surface at the top of the mating ring 600, forming a tight mat. The inner circumferences of the discharge pipe 400, the rubber ring 402, and the mating ring 600 are aligned, and the material discharged from the discharge pipe 400 enters the collection box 200 through the rubber ring 402 and the mating ring 600.

[0045] This utility model, by setting a rubber ring 402 and a docking ring 600, has the advantage of tightly fitting the discharge pipe 400 with the feed port on the box cover 300, reducing material leakage during material recycling.

[0046] In this embodiment, a threaded annular groove 403 is provided on the outer periphery of the outlet end of the discharge pipe 400, and a threaded ring 401 is fixed to the top of the rubber ring 402. The threaded ring 401 is threadedly connected to the threaded annular groove 403. The threaded connection method facilitates the replacement of aged or damaged rubber rings 402.

[0047] Working principle: The collection box 200 is pushed into the bottom of the machine compartment 100 below the discharge port. Two guide pillars 700 enter from the inlet ends of the two guide rails 500 respectively, and continue to push the collection box 200 in until the guide pillars 700 contact the end of the guide rails 500 and then stop. During this process, when the collection box 200 is pushed into the bottom of the machine compartment 100 below the discharge port, the rubber ring 402 passes along the annular inclined surface of the outer circumference of the docking ring 600. The rubber ring 402 is compressed until the collection box 200 reaches the designated position. The compressed rubber ring 402 abuts against the annular plane at the top of the docking ring 600, and the material discharged from the discharge pipe 400 enters the collection box 200 through the rubber ring 402 and the docking ring 600.

[0048] When processing the recycled materials in the collection box 200, simply pull out the collection box 200, and the materials inside can be reused.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A magnetic particle inspection machine for inspecting ring-shaped workpieces, characterized in that: Includes a cabin (100) and a collection box (200); The bottom of the machine compartment (100) is provided with a discharge port, and a discharge pipe (400) is fixed at the discharge port. The collection box (200) is placed below the discharge port at the bottom of the machine compartment (100). The top of the collection box (200) is provided with a box cover (300), and a feeding port is provided on the box cover (300). The discharge pipe (400) is fixed with guide rails (500) on both sides, and two guide posts (700) are fixed on the box cover (300). The two guide posts (700) are guided and cooperate with the two guide rails (500). The guide rail (500) is closed at the end and is arc-shaped. The guide post (700) is matched with the end of the guide rail (500) to complete the docking of the discharge pipe (400) and the feed inlet of the box cover (300).

2. The magnetic particle inspection machine for detecting annular workpieces according to claim 1, characterized in that: The bottom of the machine compartment (100) is a downward trapezoidal shape, and the discharge port is located at the lowest point of the trapezoidal shape.

3. The magnetic particle inspection machine for detecting annular workpieces according to claim 1, characterized in that: The guide rail (500) has an outward-pointing entry end.

4. A magnetic particle inspection machine for detecting annular workpieces according to claim 1, characterized in that: A rubber ring (402) is provided at the outlet end of the discharge pipe (400), and a docking ring (600) is fixed at the inlet of the box cover (300); The outer periphery of the docking ring (600) is an annular inclined surface, the top of the docking ring (600) is an annular plane, and the top of the docking ring (600) is pressed and fitted with the rubber ring (402).

5. A magnetic particle inspection machine for detecting annular workpieces according to claim 4, characterized in that: The outlet end of the discharge pipe (400) is provided with a threaded ring groove (403) on its outer periphery, and a threaded ring (401) is fixed at the top of the rubber ring (402). The threaded ring (401) is threadedly connected to the threaded ring groove (403).

6. A magnetic particle inspection machine for detecting annular workpieces according to claim 5, characterized in that: The inner circumference of the discharge pipe (400), the inner circumference of the rubber ring (402), and the inner circumference of the docking ring (600) are aligned.

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