CN216265858U - Simple clamp for magnetic memory detection - Google Patents

Abstract

The application discloses magnetism memory detects uses simple and easy anchor clamps, including placing the platform, place the bench and install a pair of fixed grip block, activity fixture and jack-up mechanism, fixed grip block installs respectively in placing the wherein adjacent both sides of bench end face, activity fixture is located and places the platform and keeps away from the lateral part of fixed grip block, form the grip block of centre gripping ferromagnetic material between fixed grip block and the activity fixture, activity fixture is suitable for and slides along placing the platform, jack-up mechanism installs in the middle part of grip block, jack-up mechanism is suitable for and cooperates with activity fixture, with the ferromagnetic material jack-up that will be located to place in the grip block. The beneficial effect of this application: the size of the clamping area can be adjusted through the movable clamping mechanism which can slide along the placing table so as to be suitable for clamping ferromagnetic materials with different sizes; meanwhile, the jacking mechanism is matched with the movable clamping mechanism, so that the ferromagnetic material can be jacked up after detection is finished, and the ferromagnetic material is convenient for operators to take.

Description

Simple clamp for magnetic memory detection

Technical Field

The application relates to the technical field of clamps, in particular to a simple clamp for magnetic memory detection.

Background

The magnetic memory detection technology is characterized in that the stress concentration degree and the defect position are judged by detecting a magnetic memory signal generated by a ferromagnetic material under the combined action of an environmental magnetic field and an external acting force.

When carrying out magnetic memory and examining, often need carry out the centre gripping to ferromagnetic material, this must use anchor clamps, and current anchor clamps simple structure, centre gripping size is fixed, is unsuitable for the centre gripping of different size materials, simultaneously after detecting the completion, also is inconvenient to take ferromagnetic material. Therefore, there is a need for an improved prior art clamp.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a simple and easy anchor clamps are used in magnetic memory detection, when can carry out the centre gripping to not unidimensional ferromagnetic material, still conveniently take ferromagnetic material after detecting the completion.

In order to achieve the above purposes, the technical scheme adopted by the application is as follows: a simple clamp for magnetic memory detection comprises a placing table, wherein a pair of fixed clamping plates, a pair of movable clamping mechanisms and a jacking mechanism are mounted on the placing table, the fixed clamping plates are respectively and fixedly mounted on two adjacent sides of the upper end face of the placing table, the movable clamping mechanisms are mounted on the side portions, far away from the fixed clamping plates, of the placing table, so that clamping areas for clamping ferromagnetic materials are formed between the fixed clamping plates and the movable clamping mechanisms, and meanwhile, the movable clamping mechanisms are suitable for sliding along the placing table, so that the sizes of the clamping areas can be adjusted to adapt to the ferromagnetic materials with different sizes; the jacking mechanism is installed in the middle of the clamping area, the jacking mechanism is suitable for being matched with the movable clamping mechanism, and then the jacking mechanism can be driven by the movable clamping mechanism to jack up ferromagnetic materials placed in the clamping area so as to facilitate taking of the ferromagnetic materials after detection is completed.

Preferably, the movable clamping mechanism comprises a first clamping assembly and a second clamping assembly, the first clamping assembly and the second clamping assembly are respectively installed on the adjacent two sides of the placing table far away from the fixed clamping plates, the first clamping assembly and the second clamping assembly are respectively arranged opposite to the fixed clamping plates, so that the first clamping assembly, the second clamping assembly and the two fixed clamping plates form the clamping area, and the first clamping assembly and the second clamping assembly are mutually matched, so that the first clamping assembly and the second clamping assembly can be synchronously close to or far away from the opposite fixed clamping plates, and thus ferromagnetic materials with different sizes can be clamped.

Preferably, one side of the placing table, which is far away from the fixed clamping plate, is provided with a first sliding chute extending to the clamping area, and a first rotating seat and a third rotating seat are fixedly mounted below two ends of the first sliding chute of the placing table respectively; first centre gripping subassembly includes screw shaft and first backup pad, the both ends of screw shaft respectively with first rotation seat and the third rotates the seat and rotates the connection, first backup pad is located place the up end of platform, the middle part of first backup pad is connected with first connecting plate, first connecting plate passes first spout with the screw shaft carries out screw-thread fit, the screw shaft is suitable for through rotatory with the drive first backup pad is followed first spout slides, and then can be right the size of one of them direction in centre gripping district is adjusted.

Preferably, a second sliding chute extending to the clamping area is arranged on the other side of the placing table away from the fixed clamping plate, and a second rotating seat and a fourth rotating seat are respectively and fixedly installed on the placing table below two ends of the second sliding chute; the second clamping assembly comprises a screw shaft and a second supporting plate, two ends of the screw shaft are respectively rotatably connected with the second rotating seat and the fourth rotating seat, the second supporting plate is located on the upper end face of the placing table, a second connecting plate is connected to the middle of the second supporting plate, the second connecting plate penetrates through the second sliding groove to be in screw rod fit with the screw shaft, and the screw shaft are in bevel gear fit through the end part far away from the side wall of the placing table, so that when the screw shaft rotates, the screw shaft synchronously rotates to drive the second supporting plate to slide along the second sliding groove, and further the size of the clamping area in the other direction can be adjusted.

Preferably, first backup pad with all install the elasticity clamping part in the second backup pad, first backup pad with the second backup pad is through stating elasticity clamping part elasticity centre gripping ferromagnetic material to avoid the extrusion deformation influence that rigid clamping produced ferromagnetic material to detect.

Preferably, the elasticity clamping part includes grip block and spring, the grip block through one side set up the guide bar with first backup pad or second backup pad sliding connection, the spring cup joint in on the guide bar, so that the grip block with form elasticity sliding fit between first backup pad or the second backup pad.

Preferably, an extension plate parallel to the screw shaft extends from a side of the first connection plate, and a rack segment is provided at an end of the extension plate; a groove is formed in the middle of the clamping area, a sliding hole penetrating through the placing table is formed in the bottom of the groove, a spline groove is formed in the side wall of the sliding hole, and a supporting seat is arranged below the sliding hole of the placing table; the jack-up mechanism includes roof and lead screw, the roof is suitable for to be installed in the recess, the lower extreme of roof is fixed with the sliding sleeve, the sliding sleeve be suitable for through the lateral wall the spline with the slide opening carries out sliding fit, the lead screw through the support groove that the lower part lateral wall set up with supporting seat normal running fit, the upper portion of lead screw stretches into in the sliding sleeve and with the sliding sleeve carries out the lead screw cooperation, the lead screw be suitable for through the gear train with the rack section cooperates, with the drive the roof is followed the slide opening will be located accomplish the ferromagnetic material jack-up that detects in the centre gripping district to make things convenient for operating personnel to take.

Preferably, the gear set comprises a first gear and a second gear which are meshed with each other, the first gear is mounted at the lower end of the screw rod, the second gear is in running fit with the lower end face of the placing table, the rack segment is suitable for being matched with the second gear to drive the screw rod to rotate, and then the moving distance of the rack segment can be enlarged, so that the top plate can be ensured to jack up the ferromagnetic material for a sufficient distance.

Preferably, a rotating wheel is installed at an end of the screw shaft near the side wall of the placing table, so that the screw shaft is conveniently driven by the rotating wheel.

Compared with the prior art, the beneficial effect of this application lies in:

(1) form the clamping area that can centre gripping ferromagnetic material between first centre gripping subassembly, second centre gripping subassembly and two fixed grip blocks to first centre gripping subassembly and second centre gripping subassembly can carry out synchronous slip along first spout and second spout respectively, thereby can adjust the size of two not equidirectional of clamping area, carry out the centre gripping with the realization to the ferromagnetic material of not unidimensional.

(2) After ferromagnetic material accomplished the detection, first centre gripping subassembly removed to the direction of keeping away from the centre gripping district, and the rack section that can go up the extension board through first centre gripping subassembly meshes with the gear train and rotates with the drive lead screw to the rotation through the lead screw can drive the roof and move up along the slide opening, and then realizes detecting the ferromagnetic material jack-up after accomplishing, in order to make things convenient for operating personnel's taking.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic structural view of an upper end face of the placing table in the present invention;

FIG. 4 is a schematic view of the lower end face of the placing table according to the present invention;

FIG. 5 is a schematic view of a first clamping assembly of the present invention;

FIG. 6 is a schematic structural view of a second clamping assembly of the present invention;

FIG. 7 is a schematic view of the jacking mechanism of the present invention;

FIG. 8 is a schematic diagram illustrating a state of clamping a ferromagnetic material according to the present invention;

FIG. 9 is a schematic diagram illustrating the engagement of the first clamping assembly and the second clamping assembly when clamping the ferromagnetic material according to the present invention;

FIG. 10 is a schematic diagram of the state of the lifting mechanism for lifting the ferromagnetic material according to the present invention;

FIG. 11 is a schematic view of a portion of the jacking mechanism of the present invention engaged with the first clamping assembly;

in the figure: the placing table 1, the groove 110, the sliding hole 120, the first sliding chute 131, the second sliding chute 132, the first rotating seat 141, the second rotating seat 142, the third rotating seat 151, the fourth rotating seat 152, the supporting seat 160, the guide seat 170, the fixed clamping plate 2, the movable clamping mechanism 3, the first clamping assembly 31, the bevel gear 300, the screw shaft 311, the rotating wheel 3110, the first supporting plate 312, the first connecting plate 3120, the clamping plate 313, the guide rod 3130, the spring 314, the extending plate 315, the rack segment 3150, the second clamping assembly 32, the screw shaft 321, the second supporting plate 322, the second connecting plate 3220, the jacking mechanism 4, the top plate 41, the sliding sleeve 410, the screw rod 42, the supporting groove 420, the first gear 421, the second gear 500, and the ferromagnetic material 600.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Fig. 1 to 11 illustrate one preferred embodiment of the present application, which is a simple clamp for magnetic memory detection, comprising a placing table 1, and a fixed clamping plate 2, a movable clamping mechanism 3 and a jacking mechanism 4 which are mounted on the placing table 1; the pair of fixed clamping plates 2 are respectively and fixedly arranged on two adjacent sides of the upper end surface of the placing table 1, the movable clamping mechanisms 3 are arranged on the side part of the placing table 1 far away from the fixed clamping plates 2, so that a clamping area for clamping the ferromagnetic material 600 is formed between the fixed clamping plates 2 and the movable clamping mechanisms 3, when the ferromagnetic material 600 needs to be detected, the movable clamping mechanisms 3 can slide towards the direction of the fixed clamping plates 2 to clamp the ferromagnetic material 600, and after the ferromagnetic material 600 is detected, the movable clamping mechanisms 3 can be moved reversely to release the clamping of the ferromagnetic material 600, so that the size of the clamping area can be adjusted through the slidable movable clamping mechanisms 3 to adapt to clamping the ferromagnetic materials 600 with different sizes; jacking mechanism 4 is located the middle part in the clamping area, is examining time measuring when ferromagnetic material 600, ferromagnetic material 600 is by the centre gripping in jacking mechanism 4's top, and accomplish the back of detecting when ferromagnetic material 600, can cooperate with jacking mechanism 4 through movable clamping mechanism 3's reverse movement to jacking mechanism 4 can be under movable clamping mechanism 3's drive, will be located the ferromagnetic material 600 jack-up of accomplishing the detection in the clamping area, in order to make things convenient for operating personnel to take.

It can be understood that the size of the ferromagnetic material 600 is generally cut according to the requirement, so the size is variable, and the ferromagnetic material 600 with different sizes can be conveniently placed in the clamping area by the slidable movable clamping mechanism 3; simultaneously ferromagnetic material 600 places back in the clamping area, and its lower terminal surface is the laminating with the up end of placing platform 1 to accomplish the back that detects at ferromagnetic material 600, inconvenient taking, through jack-up mechanism 4 with ferromagnetic material 600's jack-up, make ferromagnetic material 600's lower extreme and place and form the clearance between the up end of platform 1, thereby make things convenient for taking of ferromagnetic material 600.

In one embodiment of the present application, as shown in fig. 1 and fig. 2, the movable clamping mechanism 3 includes a first clamping assembly 31 and a second clamping assembly 32, the first clamping assembly 31 and the second clamping assembly 32 are respectively installed at two adjacent sides of the placing table 1 away from the fixed clamping plates 2, and the first clamping assembly 31 and the second clamping assembly 32 are respectively disposed opposite to one of the fixed clamping plates 2, so that a clamping area is formed between the first clamping assembly 31, the second clamping assembly 32 and two fixed clamping plates 2, and meanwhile, the first clamping assembly 31 and the second clamping assembly 32 are mutually matched, so that the first clamping assembly 31 and the second clamping assembly 32 can synchronously approach or separate from the opposite fixed clamping plates 2, thereby clamping ferromagnetic materials 600 with different sizes.

In this embodiment, as shown in fig. 3 to 5 and fig. 8 to 10, a first sliding groove 131 extending to the clamping area is disposed on one side of the placing table 1 away from the fixed clamping plate 2, and a first rotating seat 141 and a third rotating seat 151 are respectively fixedly mounted on two ends of the first sliding groove 131 on the lower end surface of the placing table 1. The first clamping assembly 31 comprises a screw shaft 311 and a first supporting plate 312, wherein two ends of the screw shaft 311 are respectively rotatably connected with the first rotating seat 141 and the third rotating seat 151, and the first supporting plate 312 is located on the upper end surface of the placing table 1, and a first connecting plate 3120 is connected to the middle of the first supporting plate 312, so that the first supporting plate 312 passes through the first connecting plate 3120 to be in threaded fit with the screw shaft 311, so that when the screw shaft 311 rotates, the first connecting plate 3120 can be driven to drive the first supporting plate 312 to slide along the first sliding groove 131, and then the size of the clamping area perpendicular to the direction of the first supporting plate 312 can be adjusted, so as to clamp the ferromagnetic materials 600 with different sizes in the clamping area.

In this embodiment, as shown in fig. 3 to 6 and fig. 8 to 10, a second sliding groove 132 extending to the clamping area is disposed on the other side of the placing table 1 away from the fixed clamping plate 2, and a second rotating seat 142 and a fourth rotating seat 152 are respectively fixedly mounted on the lower end surface of the placing table 1 at two ends of the second sliding groove 132. The second clamping assembly 32 comprises a screw shaft 321 and a second supporting plate 322, wherein both ends of the screw shaft 321 are respectively rotatably connected with the second rotating base 142 and the fourth rotating base 152, the second supporting plate 322 is located on the upper end surface of the placing table 1, and a second connecting plate 3220 is connected to the middle of the second supporting plate 322, so that the second supporting plate 322 passes through the second chute 132 through the second connecting plate 3220 to be matched with the screw shaft 321 through the screw shaft 42; the end parts of the screw shaft 321 and the screw shaft 311 far away from the side wall of the placing table 1 are both provided with bevel gears 300, and the screw shaft 321 and the screw shaft 311 are matched through the bevel gears 300, so that during the rotation of the screw shaft 311, the screw shaft 321 can rotate synchronously with the screw shaft 311 through the bevel gears 300, and further the second connecting plate 3220 is driven to slide along the second sliding chute 132, so that the size of the clamping area perpendicular to the direction of the second connecting plate 322 is adjusted.

In this embodiment, as shown in fig. 5, a turning wheel 3110 is attached to an end of the screw shaft 311 near the side wall of the placing table 1 so that the screw shaft 311 is easily driven by the turning wheel 3110.

In one embodiment of the present application, as shown in fig. 5, 6 and 8, the elastic clamping portions are mounted on the first supporting plate 312 and the second supporting plate 322, and the ferromagnetic material 600 can be elastically clamped by the first supporting plate 312 and the second supporting plate 322 through the elastic clamping portions, so as to avoid the influence of the rigid clamping on the detection caused by the compression deformation of the ferromagnetic material 600.

It is understood that the ferromagnetic material 600 can be rigidly clamped by the synchronous movement of the first support plate 312 and the second support plate 322, and the ratio of the length to the width of the ferromagnetic material 600 is suitable, that is, when the first support plate 311 clamps the ferromagnetic material 600, the second support plate 322 also just clamps the ferromagnetic material 600, this necessarily requires that the ferromagnetic material 600 be precisely cut before inspection, thereby wasting a lot of time and also increasing the cost of detection, while by the elastic clamping portion, when the ferromagnetic material 600 is clamped in one direction, the other direction can be moved further, so that the other direction of the ferromagnetic material 600 is clamped, that is, the ferromagnetic material 600 does not need to be cut precisely before detection, and the extrusion sizes of the ferromagnetic material 600 in two directions can be compensated by the two elastic clamping portions.

In this embodiment, as shown in fig. 5, 6 and 8, the elastic clamping portion includes a clamping plate 313 and a spring 314, the clamping plate 313 is parallel to the first supporting plate 312, and the side of the clamping plate 313 opposite to the first supporting plate 312 is provided with a guide post 3130, the number of the guide posts 3130 can be adjusted according to actual requirements, for example, as shown in fig. 5 and 6, the number of the guide posts 3130 is a pair and is respectively located at two ends of the side of the clamping plate 313, so that the clamping plate 313 is slidably connected with the first supporting plate 312 through the guide post 3130, the spring 314 is sleeved on the guide post 3130, and two ends of the spring 314 respectively abut against the first supporting plate 312 and the clamping plate 313, so that an elastic sliding connection is formed between the clamping plate 313 and the first supporting plate, and when the elastic clamping portion is pressed against the ferromagnetic material 600, a flexible clamping can be achieved.

It is to be understood that since the elastic clamping portions are identical to the coupling structures of the first and second support plates 312 and 322, the coupling structure of the elastic clamping portions to the first support plate 312 is described in the above embodiments, so that the coupling structure of the elastic clamping portions to the second support plate 313 can be analogized.

In one embodiment of the present application, as shown in fig. 3 to 5, 7, 10 and 11, an extension plate 315 parallel to the screw shaft 311 is extended from a side portion of the first connection plate 3120, the extension plate 315 is slidably engaged with the sliding seat 170 fixedly coupled to the lower end of the placing table 1, and a rack segment 3150 is provided at an end portion of the extension plate 315. The middle of the holding area of the placing table 1 is provided with a groove 110, the bottom of the groove 110 is provided with a sliding hole 120 penetrating through the placing table 1, the side wall of the sliding hole 120 is provided with a spline groove, and the lower end face of the placing table 1 is provided with a support seat 160 below the sliding hole 120.

The jacking mechanism 4 comprises a top plate 41 and a screw rod 42, wherein the top plate 41 is installed in the groove 110 when the ferromagnetic material 600 is detected, the lower end of the top plate 41 is fixed with a sliding sleeve 410, and the side wall of the sliding sleeve 410 is provided with a spline, so that the sliding sleeve 410 can slide along the axial direction of the sliding hole 120 without deflection through the mutual matching of the spline of the sliding sleeve 410 and the spline groove of the sliding hole 120; the lead screw 42 is through the support groove 420 and the supporting seat 160 normal running fit that the lower part lateral wall set up, the upper portion of lead screw 42 stretches into in the sliding sleeve 410 and carries out the lead screw cooperation with the sliding sleeve 410, simultaneously lead screw 42 and the rack section 3150 on the extension board 315 between cooperate through the gear train, thereby accomplish the back that detects at ferromagnetic material 600, can drive lead screw 42 through rack section 3150's removal and rotate, and then drive roof 41 along the slide opening 120 will be located the ferromagnetic material 600 jack-up in the centre gripping district, in order to make things convenient for operating personnel to take.

It can be understood that the rack segment 3150 is located at the end of the extension plate 315, and during the process that the rack segment 3150 moves from a position far away from the gear set to a position close to the gear set, the first clamping assembly 31 and the second clamping assembly 32 move towards a direction close to the side wall of the placing table 1 to realize unclamping of the ferromagnetic material 600, and then as the first clamping assembly 31 continues to move towards a direction close to the side wall of the placing table 1, the rack segment 3150 cooperates with the gear set to realize jacking of the ferromagnetic material by the top plate 41.

In this embodiment, as shown in fig. 7 and fig. 11, the gear set includes a first gear 421 and a second gear 500 that can be engaged with each other, wherein the first gear 421 is installed at the lower end of the lead screw 42, the second gear 500 is rotatably engaged with the lower end surface of the placing table 1, the rack segment 3150 is engaged with the second gear 500 to drive the lead screw 42 to rotate, and the diameter of the second gear 500 is larger than that of the first gear 421, so that the angle at which the rack segment 3150 drives the second gear 500 to rotate can be enlarged through the gear set, thereby ensuring that the lead screw 42 has a sufficient rotation angle to drive the top plate 41 to jack up the ferromagnetic material 600 to a sufficient distance.

It can be understood that, if the first gear 421 is directly engaged with the rack segment 3150, the diameter of the first gear 421 needs to be enlarged, and the moving distance of the rack segment 3150 is not changed, so that the rotating angle of the enlarged first gear 421 engaged with the rack segment 3150 is too small to meet the jacking requirement of the top plate 41.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims (9)

1. The utility model provides a magnetism memory detects uses simple and easy anchor clamps which characterized in that: the method comprises the following steps:

a placing table;

the pair of fixed clamping plates are respectively and fixedly arranged on two adjacent sides of the upper end surface of the placing table;

the movable clamping mechanism is arranged on the side part, far away from the fixed clamping plate, of the placing table, so that a clamping area for clamping ferromagnetic materials is formed between the fixed clamping plate and the movable clamping mechanism, and the movable clamping mechanism is suitable for sliding along the placing table; and

the jacking mechanism is arranged in the middle of the clamping area and is suitable for jacking the ferromagnetic materials placed in the clamping area under the cooperation of the movable clamping mechanism.

2. The simple clamp for magnetic memory test as claimed in claim 1, wherein: the movable clamping mechanism comprises a first clamping assembly and a second clamping assembly, the first clamping assembly and the second clamping assembly are respectively installed on the placing table and far away from two adjacent sides of the fixed clamping plates, so that the first clamping assembly, the second clamping assembly and the two fixed clamping plates form a clamping area, and the first clamping assembly and the second clamping assembly are mutually matched to be synchronously close to or far away from the opposite fixed clamping plates.

3. The simple clamp for magnetic memory test as claimed in claim 2, wherein: a first sliding groove extending to the clamping area is formed in one side, away from the fixed clamping plate, of the placing table, and a first rotating seat and a third rotating seat are respectively fixed at two ends of the placing table below the first sliding groove;

first centre gripping subassembly includes screw shaft and first backup pad, the both ends of screw shaft respectively with first seat and the third rotates the seat and rotates the connection, first backup pad is located place the up end of platform, first backup pad passes through the first connecting plate that the middle part is connected first spout with the screw shaft carries out screw-thread fit, so that the screw shaft is through rotatory in order to drive first backup pad is followed first spout slides.

4. The simple clamp for magnetic memory test as claimed in claim 3, wherein: and a rotating wheel is arranged at the end part of the screw shaft close to the side wall of the placing table.

5. The simple clamp for magnetic memory test as claimed in claim 4, wherein: a second sliding chute extending to the clamping area is formed in the other side, far away from the fixed clamping plate, of the placing table, and a second rotating seat and a fourth rotating seat are fixedly mounted at two ends, below the second sliding chute, of the placing table respectively;

the second clamping assembly comprises a screw shaft and a second supporting plate, two ends of the screw shaft are respectively rotatably connected with the second rotating seat and the fourth rotating seat, the second supporting plate is located on the upper end face of the placing table, the second supporting plate penetrates through the second sliding groove through a second connecting plate connected with the middle of the second supporting plate to be in screw rod fit with the screw shaft, and the screw shaft are matched through a bevel gear, so that when the screw shaft rotates, the screw shaft synchronously rotates to drive the second supporting plate to slide along the second sliding groove.

6. The simple clamp for magnetic memory test as claimed in claim 5, wherein: the first supporting plate with all install the elasticity clamping part in the second backup pad, first backup pad with the second backup pad passes through elasticity clamping part elasticity centre gripping ferromagnetic material.

7. The simple clamp for magnetic memory test as claimed in claim 6, wherein: the elasticity clamping part includes grip block and spring, the grip block through one side set up the guide bar with first backup pad or second backup pad sliding connection, the spring cup joint in on the guide bar, so that the grip block with first backup pad or form elasticity sliding fit between the second backup pad.

8. The simple clamp for magnetic memory test as claimed in any one of claims 3 to 7, wherein: an extension plate parallel to the screw shaft extends from the side of the first connecting plate, and a rack section is arranged at the end of the extension plate;

a groove is formed in the middle of the clamping area, a sliding hole penetrating through the placing table is formed in the bottom of the groove, a spline groove is formed in the side wall of the sliding hole, and a supporting seat is arranged below the sliding hole of the placing table;

the jacking mechanism comprises a top plate and a screw rod, the top plate is suitable for being installed in the groove, a sliding sleeve is fixed at the lower end of the top plate, the sliding sleeve is suitable for being matched with the sliding hole in a sliding mode through splines of side walls, the screw rod is matched with the supporting seat in a rotating mode through a supporting groove formed in the side wall of the lower portion, the upper portion of the screw rod extends into the sliding sleeve and is matched with the sliding sleeve in a screw rod mode, a rack section is suitable for being driven through a gear set to rotate the screw rod, and therefore the rack section can be driven to jack up ferromagnetic materials in the clamping area through the top plate.

9. The simple clamp for magnetic memory test as claimed in claim 8, wherein: the gear train includes intermeshing's first gear and second gear, first gear install in the lower extreme of lead screw, the second gear with place the lower terminal surface normal running fit of platform, the rack section be suitable for through with the cooperation of second gear is in order to drive the lead screw rotates.

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