CN108051451B - Spring penetrant inspection device - Google Patents
Spring penetrant inspection device Download PDFInfo
- Publication number
- CN108051451B CN108051451B CN201711367759.3A CN201711367759A CN108051451B CN 108051451 B CN108051451 B CN 108051451B CN 201711367759 A CN201711367759 A CN 201711367759A CN 108051451 B CN108051451 B CN 108051451B
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- China
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- spring
- adjustable fixing
- mounting hole
- penetrant inspection
- pull rod
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/91—Investigating the presence of flaws or contamination using penetration of dyes, e.g. fluorescent ink
Abstract
The invention discloses a spring penetrant inspection device which comprises a frame main body, an adjustable fixing rod, a first spring, a pull rod and a second spring, wherein the frame main body is of a cuboid hollow structure, and a plurality of right mounting holes for mounting the adjustable fixing rod are formed in the right frame of the cuboid hollow structure; a plurality of left mounting holes for mounting pull rods are formed in the left frame of the cuboid hollow structure; the adjustable fixing rod is a step shaft with a knurling head, the left end of the adjustable fixing rod is a cylinder with an annular groove, the cylinder is arranged in the right mounting hole, an opening gasket used for fixing the adjustable fixing rod on the right frame is clamped in the annular groove, the first spring is connected with the cylinder of the adjustable fixing rod, and the second spring is connected with the pull rod. By adopting the spring penetrant inspection device, when the spring penetrant inspection is carried out, the inspection work can be carried out only by respectively connecting the two ends of the spring to be inspected with the first spring and the second spring, the assembly and disassembly are convenient, and the working efficiency is greatly improved.
Description
Technical Field
The invention belongs to the technical field of tool design, and particularly relates to a spring penetrant inspection device.
Background
At present, for the compression spring penetration inspection with the length of 500mm, a steel wire is usually wound on compression springs with different diameters at two ends and the middle diameter, the part with the small middle diameter is 5mm long, all surface defects are required to be detected when the compression springs are in a stretching state, time and labor are consumed due to the fact that the compression springs are artificial single stretching springs, and when the springs are considered to be kept in the stretching state, the springs are shaken due to fatigue and cannot be kept in an ideal stretching state, detection is inconvenient, and detection accuracy and working efficiency are affected.
Disclosure of Invention
In order to solve the technical problems, the invention provides a spring penetration flaw detection device, which can keep a spring in a stretching state when a compression spring is subjected to penetration flaw detection, simultaneously detect flaws of a plurality of springs, meet the working state requirement of the spring on the detection surface and is convenient to operate.
The invention is realized by the following technical scheme.
A spring penetrant inspection device comprises a frame main body, an adjustable fixing rod, a first spring, a pull rod and a second spring, wherein the frame main body is of a cuboid hollow structure, and a plurality of right mounting holes for mounting the adjustable fixing rod are formed in the right frame of the cuboid hollow structure; a plurality of left mounting holes for mounting pull rods are formed in the left frame of the cuboid hollow structure; the adjustable fixing rod is a step shaft with a knurling head, the left end of the adjustable fixing rod is a cylinder with an annular groove, the cylinder is arranged in the right mounting hole, an opening gasket used for fixing the adjustable fixing rod on the right frame is clamped in the annular groove, the first spring is connected with the cylinder of the adjustable fixing rod, and the second spring is connected with the pull rod.
The pull rod is a step shaft, the left end of the pull rod is provided with threads, a step surface with the diameter of 3-4 mm smaller than that of the big end of the right end of the pull rod is formed at the left end, a second spring mounting hole is formed in the right end face of the big end of the pull rod, the second spring mounting hole is 0.1-0.3 mm larger than the outer diameter of a second spring, and the depth of the second spring mounting hole is 4-6 mm shorter than the total length of the second spring.
The first spring is wound according to the size of the large middle diameter of the spring to be detected, and the total length is 20-25 mm.
And the second spring is wound according to the size of the small middle diameter of the spring to be detected, and the total length is 20-25 mm.
The length of the hollow part of the frame main body is 16-20 mm longer than the stretched length of the spring to be detected.
The center distance between two adjacent right mounting holes is 40-50 mm, and the center distance between two adjacent left mounting holes is 40-50 mm.
The number of the right mounting holes is matched with that of the left mounting holes, and the center lines of the right mounting holes and the left mounting holes are on the same straight line.
The width of the annular groove is the same as the thickness of the opening gasket, and the width of the cylindrical section connecting two adjacent annular grooves is 6-10 mm.
The left end face of the cylinder protrudes out of the left end face of the right frame by 10-35 mm; a first spring mounting hole is drilled on the left end face of the cylinder, the first spring mounting hole is 0.1-0.3 mm larger than the outer diameter of the first spring, and the depth of the first spring mounting hole is 4-6 mm shorter than the total length of the first spring.
The clearance between the inner surface of the right mounting hole and the outer surface of the cylinder is 0.5 mm-1 mm; the clearance between the inner wall of the left mounting hole and the outer diameter of the threaded section of the pull rod is 0.5-1 mm.
The invention has the beneficial effects that:
by adopting the spring penetrant inspection device, when the spring penetrant inspection is carried out, the inspection work can be carried out only by respectively connecting the two ends of the spring to be inspected with the first spring and the second spring, the device can meet the stretching requirement when the compression spring penetrant inspection is carried out, the assembly and disassembly are convenient, the detection is convenient, and the working efficiency is greatly improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of fig. 1.
In the figure: 1-frame body, 2-adjustable fixing rod, 3-opening washer, 4-first spring, 5-locking screw, 6-pull rod, 7-second spring, 8-locking nut, 9-spring to be detected, 10-right frame, 11-left frame, 12-right mounting hole, 13-cylinder and 14-left mounting hole.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings, but the scope of the claimed invention is not limited thereto.
As shown in fig. 1 and 2, the spring penetrant inspection device provided by the invention comprises a frame main body 1, an adjustable fixing rod 2, a first spring 4, a pull rod 6 and a second spring 7, wherein the frame main body 1 is of a cuboid hollow structure, and a right frame 10 of the cuboid hollow structure is provided with a plurality of right mounting holes 12 for mounting the adjustable fixing rod 2; a left frame 11 of the cuboid hollow structure is provided with a plurality of left mounting holes 14 for mounting the pull rod 6; the adjustable fixing rod 2 is a step shaft with a knurling head, the left end of the adjustable fixing rod is a cylinder 13 provided with an annular groove, the annular groove is provided with three positions, the cylinder 13 is arranged in a right mounting hole 12, an opening gasket 3 used for fixing the adjustable fixing rod 2 on a right frame 10 is clamped in the annular groove, the first spring 4 is connected with the cylinder 13 of the adjustable fixing rod 2, and the second spring 7 is connected with the pull rod 6.
The pull rod 6 is a step shaft, the left end of the pull rod is a cylinder with a threaded section and is 3-4 mm smaller than the diameter of the big end of the right end to form a step surface, the step surface is attached to the right end face of the left frame 11 after assembly, a second spring mounting hole is formed in the right end face of the big end of the pull rod 6, the second spring hole is 0.1-0.3 mm larger than the outer diameter of the second spring 7, and the depth of the second spring mounting hole is 4-6 mm shorter than the total length of the second spring 7.
The first spring 4 is wound according to the size of the large and medium diameters of the spring 9 to be detected, and the total length is 20-25 mm; during assembly, after the small head of the spring 9 to be detected is screwed into the first spring 4, the first spring 4 is inserted into the adjustable fixing rod 2, and the locking screw 5 is screwed to lock the first spring 4.
The second spring 7 is wound according to the size of the small middle diameter of the spring 9 to be detected, and the total length is 20-25 mm; during assembly, after the second spring 7 is screwed into the spring 9 to be detected, the second spring 7 is inserted into the pull rod 6, the locking screw 5 is screwed to lock the second spring 7, the spring 9 to be detected is axially stretched, the pull rod 6 is inserted into the left mounting hole 14 on the same height corresponding to the left frame 11, and the locking nut 8 is screwed into the threaded section of the pull rod 6 to be attached to the left side surface of the left frame 11.
The length of the hollow part of the frame main body 1 is 16-20 mm longer than the stretched length of the springs 9 to be detected, the width is related to the number of the springs 9 to be detected at the same time, and the distance between every two adjacent springs 9 is 40-50 mm; namely, the distance between every two adjacent pull rods 6 is 40 mm-50 mm, namely, the central distance between every two adjacent right mounting holes 12 is 40 mm-50 mm, a plurality of left mounting holes 14 for mounting the pull rods 6 are arranged on the left frame 11 of the cuboid hollow structure, the distance between every two adjustable fixing rods 2 is 40 mm-50 mm, namely, the central distance between every two adjacent left mounting holes 14 is 40 mm-50 mm.
The number of the right mounting holes 12 is matched with that of the left mounting holes 14, the central lines of the right mounting holes 12 and the left mounting holes 14 are on a uniform straight line, and the specific number is determined according to the number of the springs 9 to be detected.
The width of the annular groove is the same as the thickness of the opening gasket 3, and the width of the cylindrical section connecting two adjacent annular grooves is 6-10 mm. During assembly, the cylinder 13 is inserted into the right mounting hole 12 of the frame 10, the opening gasket 3 is inserted into one annular groove of the adjustable fixing rod 2, and the left end face of the cylinder 13 protrudes 10-35 mm from the left end face of the right frame 10; and drilling a first spring mounting hole on the left end surface of the cylinder 13, wherein the first spring mounting hole is 0.1-0.3 mm larger than the outer diameter of the first spring 4, and the depth of the first spring mounting hole is 4-6 mm shorter than the total length of the first spring 4.
The clearance between the inner surface of the right mounting hole 12 and the outer surface of the cylinder 13 is 0.5 mm-1 mm; the clearance between the inner wall of the left mounting hole 14 and the outer diameter of the threaded section of the pull rod 6 is 0.5-1 mm. The installation and adjustment are convenient, and the spring is not damaged in the flaw detection process.
Claims (9)
1. The utility model provides a spring penetrant inspection device which characterized in that: the adjustable fixing frame comprises a frame main body (1), an adjustable fixing rod (2), a first spring (4), a pull rod (6) and a second spring (7), wherein the frame main body (1) is of a cuboid hollow structure, and a plurality of right mounting holes (12) for mounting the adjustable fixing rod (2) are formed in a right frame (10) of the cuboid hollow structure; a left frame (11) of the cuboid hollow structure is provided with a plurality of left mounting holes (14) for mounting the pull rod (6); the adjustable fixing rod (2) is a step shaft with a knurling head, the left end of the adjustable fixing rod is a cylinder (13) provided with an annular groove, the cylinder (13) is arranged in a right mounting hole (12), an opening gasket (3) used for fixing the adjustable fixing rod (2) on a right frame (10) is clamped in the annular groove, the first spring (4) is connected with the cylinder (13) of the adjustable fixing rod (2), and the second spring (7) is connected with the pull rod (6); the pull rod (6) is a step shaft, the left end of the pull rod is provided with threads, a step surface with the diameter of 3-4 mm smaller than the diameter of the big end of the right end of the left end of the pull rod is formed, a second spring mounting hole is formed in the right end face of the big end of the pull rod (6), the diameter of the second spring mounting hole is 0.1-0.3 mm larger than the outer diameter of a second spring (7), and the depth of the second spring mounting hole is 4-6 mm shorter than the total length of the second spring (7).
2. The spring penetrant inspection apparatus of claim 1 wherein: the first spring (4) is wound according to the size of the large and medium diameters of the spring (9) to be detected, and the total length is 20-25 mm.
3. The spring penetrant inspection apparatus of claim 1 wherein: the second spring (7) is wound according to the size of the small middle diameter of the spring (9) to be detected, and the total length is 20-25 mm.
4. The spring penetrant inspection apparatus of claim 1 wherein: the length of the hollow part of the frame main body (1) is 16-20 mm longer than the stretched length of the spring (9) to be detected.
5. The spring penetrant inspection apparatus of claim 1 wherein: the center distance between two adjacent right mounting holes (12) is 40-50 mm, and the center distance between two adjacent left mounting holes (14) is 40-50 mm.
6. The spring penetrant inspection apparatus of claim 1 wherein: the number of the right mounting holes (12) is matched with that of the left mounting holes (14), and the center lines of the right mounting holes (12) and the left mounting holes (14) are on a uniform straight line.
7. The spring penetrant inspection apparatus of claim 1 wherein: the width of the annular groove is the same as the thickness of the open gasket (3), and the width of the cylindrical section connecting two adjacent annular grooves is 6-10 mm.
8. The spring penetrant inspection apparatus of claim 1 wherein: the left end face of the cylinder (13) protrudes out of the left end face of the right frame (10) by 10-35 mm; a first spring mounting hole is drilled on the left end face of the cylinder (13), the first spring mounting hole is 0.1-0.3 mm larger than the outer diameter of the first spring (4), and the depth of the first spring mounting hole is 4-6 mm shorter than the total length of the first spring (4).
9. The spring penetrant inspection apparatus of claim 1 wherein: the clearance between the inner surface of the right mounting hole (12) and the outer surface of the cylinder (13) is 0.5-1 mm; the clearance between the inner wall of the left mounting hole (14) and the outer diameter of the threaded section of the pull rod (6) is 0.5-1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711367759.3A CN108051451B (en) | 2017-12-18 | 2017-12-18 | Spring penetrant inspection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711367759.3A CN108051451B (en) | 2017-12-18 | 2017-12-18 | Spring penetrant inspection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108051451A CN108051451A (en) | 2018-05-18 |
| CN108051451B true CN108051451B (en) | 2020-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711367759.3A Active CN108051451B (en) | 2017-12-18 | 2017-12-18 | Spring penetrant inspection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108051451B (en) |
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2017
- 2017-12-18 CN CN201711367759.3A patent/CN108051451B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| "航空拉伸弹簧磁粉检测辅助系统研究";刘凯 等;《第十一届全国磁粉渗透检测技术年会》;20171031;第164-165页 * |
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| Publication number | Publication date |
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| CN108051451A (en) | 2018-05-18 |
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