CN219369661U

CN219369661U - Novel magnetic type ultrasonic test block roll-over stand

Info

Publication number: CN219369661U
Application number: CN202223566133.4U
Authority: CN
Inventors: 赵立; 谢世杰; 刘勇; 陈宇凌
Original assignee: Zhejiang Institute of Special Equipment Science
Current assignee: Zhejiang Institute of Special Equipment Science
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-07-18
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to an ultrasonic testing auxiliary device. The utility model aims at providing a novel magnetic force type ultrasonic test block roll-over stand, this roll-over stand should be able to be fit for the test block of different length, easy operation, commonality are strong, can provide work facility for ultrasonic detection personnel. The technical scheme is a novel magnetic type ultrasonic test block roll-over stand, its characterized in that: the test block overturning frame further comprises a lifting platform which is arranged on the test block frame bottom plate and used for installing the test block, and two trapezoid supports which are arranged on the left side and the right side of the test block frame bottom plate in a manner of moving in opposite directions and are respectively provided with the fixing mechanism.

Description

Novel magnetic type ultrasonic test block roll-over stand

Technical Field

The utility model relates to an ultrasonic testing auxiliary device, in particular to a novel magnetic ultrasonic test block overturning frame.

Background

The ultrasonic test block comprises a standard test block and a reference test block. For reference blocks used to detect workpieces of large thickness, the volume and weight tend to be large. When the reference block is used for manufacturing an ultrasonic detection curve, the reference block needs to be turned over, so that artificial defect holes with different depths are found; for larger test blocks, the manual force is difficult to overturn, and the test blocks often contain engine oil, so that the manual overturning difficulty is higher.

CN216051557U discloses a test block roll-over stand of an ultrasonic flaw detection device; the test block testing device comprises a bottom plate and a turnover device, wherein the turnover device comprises a supporting plate vertically arranged at two ends of the bottom plate, a clamping mechanism and a rotating mechanism, the clamping mechanism is used for fixing the test block and comprises two fixing blocks, clamping blocks and an adjusting assembly, and the two fixing blocks are respectively arranged on side walls of the two supporting plates, which are close to each other. The position of adjustable grip block of adjusting component for the distance between grip block and the lateral wall of grip slot can be changed, is applicable to the test block of different thickness, has the effect that improves fixture's suitability. However, the test block clamping device has the defects that only one specification of test block can be clamped, and the test block clamping device needs to be manually put on the test block clamping device, so that the operation of the thick and heavy reference block is not easy. There is a certain difficulty in both installation and removal. Because the test block clamping mode is adopted for fixing, two ends of the test block are wrapped by the clamping blocks, and the distance from the artificial defect in the test block to the two ends of the test block cannot be measured.

Disclosure of Invention

The utility model aims to overcome the defects in the background technology, and provides the novel magnetic ultrasonic test block overturning frame which can be suitable for test blocks with different lengths, is simple to operate and high in universality, and can provide convenience for ultrasonic detection personnel.

The technical scheme provided by the utility model is as follows:

a novel magnetic ultrasonic test block overturning frame comprises a test block frame bottom plate, a fixing mechanism for connecting test blocks and a rotating mechanism for driving the test blocks; the method is characterized in that: the test block overturning frame further comprises a lifting platform which is arranged on the test block frame bottom plate and used for installing the test block, and two trapezoid supports which are arranged on the left side and the right side of the test block frame bottom plate in a manner of moving in opposite directions and are respectively provided with the fixing mechanism.

The lifting platform is arranged in a pit of the bottom plate of the test block frame and comprises a top plate, a bottom plate, a scissor type support arranged between the top plate and the bottom plate, a hydraulic oil cylinder fixed on the scissor type support and a hydraulic oil pump fixed on the lifting platform and communicated with the hydraulic oil cylinder through an oil guide pipe.

The trapezoid support comprises a fixed support fixed on one side of the length direction of the bottom plate of the test block frame and a sliding support slidably positioned on the other side of the length direction of the bottom plate of the test block frame through a sliding groove sliding block structure.

The sliding groove sliding block structure comprises a groove formed in the bottom plate of the test block frame along the length direction and a sliding block which is used for manufacturing the bottom end of the sliding support and is in sliding fit with the groove.

The fixing mechanism comprises two magnet blocks which are respectively and rotatably positioned on the fixing bracket and the sliding bracket around a horizontal axis, and an adjusting switch which is arranged on each magnet block and used for adjusting the magnetic force direction; the regulating switch comprises a permanent strong magnet rotatably positioned in a magnet block through a rotating shaft and a magnetic switch knob connected with the rotating shaft.

The adjusting switch of the magnet block in the sliding support is also provided with a locking structure.

The working principle of the utility model is as follows:

when in use, the reference block is firstly pushed horizontally onto the bottom plate of the test block frame, and then the hydraulic handle of the hydraulic oil pump is continuously pressed down; after the lifting platform pushed by hydraulic oil can lift the test block to a certain height, the strong magnets on two sides of the test block frame are utilized to adsorb the test block, and then the lifting platform of the bottom plate is put down, so that the 180-degree horizontal rotation of the test block can be realized. After the overturning of the test block reaches the preset requirement, a limiting device is arranged on the side of the sliding trapezoidal support in order to prevent the continuous overturning of the test block. The sliding trapezoid support can slide left and right, so that the test block overturning requirements of different lengths can be met.

The beneficial effects of the utility model are as follows:

the auxiliary device provided by the utility model can reduce the difficulty of turning the test block by ultrasonic operators, is suitable for test blocks with different lengths, and has the advantages of simple operation, labor saving, high efficiency, strong universality and convenience in installation and disassembly.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present utility model.

Fig. 2 is a view in the direction a in fig. 1.

Fig. 3 is a view in the direction B in fig. 1.

Fig. 4 is a schematic front view of the lifting platform 7 according to the embodiment of the present utility model.

Fig. 5 is an enlarged schematic cross-sectional view of the spacing device of fig. 1.

Fig. 6 is a schematic diagram of the closed state structure of the magnetic switch in fig. 1.

Fig. 7 is a schematic view of the magnetic switch of fig. 1 in an open state.

Fig. 8 is a diagram of an ultrasound contrast block in an embodiment of the utility model.

In the figure: 1. a test block frame bottom plate; 1-1, pit; 2. a fixed bracket; 3. a hydraulic handle; 4. a left magnet block; 4-1, a magnet block housing; 4-2, brass sheet; 4-3 electrical soft iron; 4-4, permanent strong magnet; 4-5, magnetic force lines; 4-6, comparing the test blocks; 4-7, supporting legs; 5. a magnetic switch knob; 6. a groove; 7. a lifting platform; 7-1, a top plate; 7-2, upper fixed support; 7-3, a first connecting rod; 7-4, a second connecting rod; 7-5, fixing the support at the bottom; 7-6, a bottom plate; 7-7, a rotating shaft; 7-8, a hydraulic cylinder; 7-9, an oil cylinder interface; 7-10, lower pulleys; 7-11, upper pulleys; 8. a right magnet block; 9. a hydraulic oil pump; 10. a sliding support; 11. a limiting device; 11-1, a rotating shaft; 11-2, gland; 11-3, locking buckle brackets; 11-4, a hand wheel; 11-5, locking buckle; 11-6, limiting blocks; 12. a T-shaped slider; 13. and an oil guide pipe.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to the following examples.

The novel magnetic ultrasonic test block overturning frame shown in fig. 1 comprises a test block frame bottom plate 1, a fixing mechanism arranged on the test block frame bottom plate and used for connecting test blocks, and a rotating mechanism for driving the test blocks; these are similar to the prior art.

The improvement of the utility model is as follows:

as shown in fig. 1 and 4, a lifting platform 7 is installed in the middle of the test block holder base plate 1, and 1 groove 6 (preferably, a dovetail groove or an inverted T groove) extending along the length direction is provided on each of both sides of the test block holder base plate in the width direction. A sliding bracket 10 is arranged at the right end of the bottom plate of the test block frame; two sliding blocks 14 (dovetail-shaped grooves or inverted T-shaped grooves matched with the grooves are formed below the sliding support, see figure 3) are just embedded in the grooves 6 of the bottom plate, so that the sliding support can slide along the length direction of the grooves, and the sliding support is suitable for the reference blocks 4-6 with different lengths.

The left end of the bottom plate of the test block frame is provided with a fixed bracket 2, and the outer side surface of the fixed bracket is provided with a manual hydraulic oil pump 9; the hydraulic handle 3 is continuously pressed manually, so that hydraulic oil can be pumped into the hydraulic oil cylinders 7-8 (shown in fig. 4) through the oil guide pipes 13 and the oil cylinder interfaces 7-9 buried in the bottom plate of the test block frame, and the hydraulic oil pump provides lifting power for the lifting platform.

FIG. 4 is a schematic view of a lifting platform structure; a pit 1-1 with an open top end is arranged in the middle of the test block frame bottom plate 1, and a lifting platform is arranged in the pit; a scissor type bracket is arranged between the top plate 7-1 of the lifting platform and the bottom plate 7-6 of the lifting platform; the 2 upper fixed supports 7-2 at the bottom of the right side of the top plate (two upper fixed supports are shown overlapped together and two lower fixed supports 7-5 are also shown overlapped together in fig. 4) are hinged with the first connecting rod 7-3 of the scissor type support, and the 2 lower fixed supports 7-5 at the top of the right side of the bottom plate are hinged with the second connecting rod 7-4 of the scissor type support; the front side and the rear side of the first connecting rod and the second connecting rod are respectively provided with 2 connecting rods (which are also shown to be overlapped in fig. 4), and the middle parts of the first connecting rod and the second connecting rod are hinged together through a rotating shaft 7-7; the left end of the first connecting rod and the left end of the second connecting rod are respectively provided with pulleys 7-10 (4 pulleys in total) which respectively prop against the bottom end surface of the top plate and the top end surface of the bottom plate. The cylinder body of the hydraulic cylinder 7-8 is fixed on the first connecting rod, and the top end of the lifting column of the hydraulic cylinder is hinged with the second connecting rod; the hydraulic cylinder can lift or drop the lifting platform when started. The lifting platform is a mature product and can be purchased from market.

The fixing mechanisms for connecting the test blocks are respectively arranged on one sides of the fixing support and the sliding support, which correspond to each other. The fixing mechanism comprises: the fixed bracket is provided with a left magnet block 4 positioned through a rotating shaft 11-1, the sliding bracket is provided with a right magnet block 8 positioned through a rotating shaft, and the two rotating shafts are horizontally and coaxially arranged; two magnet blocks are provided with an adjusting switch for adjusting the magnetic force direction.

The regulating switch comprises a permanent strong magnet 4-4 rotatably positioned in a magnet block by a rotating shaft and a magnetic switch knob 5 connected to the rotating shaft.

Fig. 6 shows a schematic diagram of a structure of a regulating switch (prior art). A magnet shell 4-1, two brass sheets 4-2; because brass is non-magnetic, magnetic force lines can be cut off, and the electric soft iron 4-3 is convenient for magnetizing and demagnetizing. The rotating shaft of the magnetic switch is connected with the permanent strong magnet into a whole (the permanent strong magnet 4-4 is provided with a hole, and the rotating shaft is locked by a nut after passing through the hole on the permanent strong magnet); the rotation of the magnetic switch knob 5 drives the permanent strong magnet to rotate (the magnetic lines of force 4-5 are indicated by arrow lines). The magnet block shown in fig. 6 is that after the magnetic switch is closed, the connection line of the N pole and the S pole is horizontally arranged, and magnetic lines of force form a loop between the workpiece and the permanent ferromagnetic body, and then the support legs 4-7 of the magnet block show that the ferromagnetic body can absorb the reference block 4-6 (in fig. 6 and 7, the support legs 4-7 of the magnet block absorb the reference block). Fig. 7 shows that after the magnetic switch is opened, the connection line of the N pole and the S pole of the permanent strong magnet changes by 90 degrees with the closed state, at this time, the brass sheet is non-magnetic, the magnetic force line is not in a loop, the magnet block shows no magnetism, and at this time, the reference block for ultrasonic detection can be taken down. The magnet block with the magnetic switch is also a mature product in the market, and the size can be customized.

The regulating switch of the right magnet block is also provided with a locking structure (shown in figure 5); the locking structure comprises: the left side of the rotating shaft 11-1 is connected with a magnet block 8 with a magnetic switch, a round cake-shaped boss is manufactured on the right side, the left side of the rotating shaft can be limited to slide through a processing step of a sliding support 10, the right side of the rotating shaft is limited to slide through a pressing cover 11-2, and the pressing cover is screwed into the sliding trapezoid support through threads. The right end of the rotating shaft is provided with a section of square section and is used for being connected with the locking buckle 11-5; the shape of the locking buckle is a cuboid, the section of the locking buckle is square, the inner wall of the left end part of the locking buckle is hollow, the section of the locking buckle is square and is just matched with the square end at the right side of the rotating shaft, the purpose of locking the rotating shaft is achieved, and meanwhile the 180-degree overturning of the reference block can be realized. The locking buckle bracket 11-3 is welded with the sliding bracket 10; a square opening is arranged in the middle of the bracket and is used for being in sliding fit with the locking buckle, and a limiting block 11-6 on the locking buckle is used for preventing the locking buckle from being pulled out of the bracket. The hand wheel 11-4 is fixed at the right end of the locking buckle, when the hand wheel is pulled out rightwards, the locking buckle is separated from the rotating shaft, the rotating shaft can rotate, and when the hand wheel is pressed leftwards, the locking buckle is matched with the end part of the rotating shaft, and the rotating shaft is locked. The locking device realizes the overturning locking of the reference block in the direction of only 90 degrees.

Claims

1. A novel magnetic ultrasonic test block overturning frame comprises a test block frame bottom plate (1), a fixing mechanism for connecting test blocks and a rotating mechanism for driving the test blocks; the method is characterized in that: the test block overturning frame further comprises a lifting platform (7) which is arranged on the test block frame bottom plate and used for installing the test block, and two trapezoid supports which are arranged on the left side and the right side of the test block frame bottom plate in a manner of being capable of moving in opposite directions and are respectively provided with the fixing mechanism.

2. The novel magnetic ultrasonic test block roll-over stand of claim 1, wherein: the lifting platform is arranged in a pit (1-1) of the bottom plate of the test block frame and comprises a top plate (7-1), a bottom plate (7-6), a scissor type support arranged between the top plate and the bottom plate (7-6), a hydraulic oil cylinder (7-8) fixed on the scissor type support and a hydraulic oil pump (9) fixed on the fixed support and communicated with the hydraulic oil cylinder through an oil guide pipe (13).

3. The novel magnetic ultrasonic test block roll-over stand of claim 2, wherein: the trapezoid support comprises a fixed support (2) fixed on one side of the length direction of the bottom plate of the test block frame and a sliding support (10) slidably positioned on the other side of the length direction of the bottom plate of the test block frame through a sliding groove sliding block structure.

4. The novel magnetic ultrasonic test block roll-over stand according to claim 3, wherein: the sliding groove sliding block structure comprises a groove (6) formed in the bottom plate of the test block frame along the length direction and a sliding block (12) which is used for manufacturing the bottom end of the sliding support and is in sliding fit with the groove.

5. The novel magnetic ultrasonic test block roll-over stand of claim 4, wherein: the fixing mechanism comprises two magnet blocks which are respectively and rotatably positioned on the fixing bracket and the sliding bracket around a horizontal axis, and an adjusting switch which is arranged on each magnet block and used for adjusting the magnetic force direction; the regulating switch comprises a permanent strong magnet (4-4) rotatably positioned in a magnet block through a rotating shaft and a magnetic switch knob (5) connected with the rotating shaft.

6. The novel magnetic ultrasonic test block roll-over stand of claim 5, wherein: the adjusting switch of the magnet block in the sliding support is also provided with a locking structure.