Magnetic attraction type fine positioning test fixture

Abstract

The present application aims to provide a compact structure, and the magnetic attraction type precision positioning test fixture can position the complex bending product through the mechanical structure. The present application comprises a first side pushing module, an upper pressing plate module, a carrier plate, a floating support module and a second side pushing module arranged in sequence from top to bottom. The first side pushing module is in sliding fit with the upper pressing plate module. The carrier plate is detachably connected with a plurality of mounting blocks. The pressing plate module locks the product in the mounting block. A plurality of mounting blocks are adapted to the shape of the product. The floating support module is in guiding fit with the carrier plate. The second side pushing module is in sliding fit with the floating support module. The second side pushing module magnetically attracts and presses the product to connect with the first side pushing module in conduction. The present application is applied to the technical field of the magnetic attraction type precision positioning test fixture.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of magnetic precise positioning test fixtures, in particular to a magnetic precise positioning test fixture. BACKGROUND

[0002] With the light and thin miniaturization of various electronic products, the corresponding assembly fittings need to meet the requirements of small size and compact structure, so some flexible circuit boards are folded to form a three-dimensional space structure, and the positioning of such products becomes a difficulty. In the existing magnetic positioning fixture, the product is roughly positioned by using a profiling groove, and the product is attracted and pushed to one side of the probe group by using a magnetic module to achieve precise positioning effect. The magnetic module used is usually an electromagnet, which cuts off and connects the current to control the magnetic field, and the cost is high and the space structure required for installation is more.

[0003] A Chinese patent with publication number CN216310071U discloses an electromagnetic adsorption positioning electric test fixture, which comprises an electric test carrier, an electric test platform, a positioning tool, an electromagnetic adsorption device, and an electric test platform. The electric test platform is inclined and arranged on one side of the electric test carrier. The positioning tool is inclined and arranged along the electric test platform, and is used for mounting and positioning the product to be tested on the electric test platform. The electromagnetic adsorption device has at least two electromagnetic adsorption blocks spaced apart and arranged on the surface of the electric test platform and the positioning tool. The utility model uses an inclined electric test platform to place the product, and the electric test platform is provided with an electromagnetic adsorption device. The product placed on the electric platform is adsorbed by the electromagnet. The electromagnetic adsorption device needs a large space during installation and use, so that the overall structure occupies a large space. In addition, the electromagnetic adsorption device can only be used under the condition of power supply, and the use scene is limited. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a magnetic precise positioning test fixture with compact structure and capable of magnetically positioning complex bent products through mechanical structure.

[0005] The technical solution adopted by the present application is: the present application comprises a first side pushing module, an upper pressing plate module, a carrier plate, a floating support module and a second side pushing module arranged in sequence from top to bottom. The first side pushing module is in sliding cooperation with the upper pressing plate module. The carrier plate is detachably connected with a plurality of mounting blocks. The pressing plate module locks the product in the mounting blocks. The plurality of mounting blocks are adapted to the shape of the product. The floating support module is in guiding cooperation with the carrier plate. The second side pushing module is in sliding cooperation with the floating support module. The second side pushing module magnetically adsorbs and presses the product to make it in conductive connection with the first side pushing module.

[0006] Further, the first side pushing module comprises a first bottom plate, a first side pushing driving device, a first slide rail group and a plurality of conducting assemblies, the output end of the first side pushing driving device is fixedly connected with the upper pressing plate module, the output end of the first side pushing driving device is clasply connected with the first bottom plate, the first slide rail group is connected on both sides of the first bottom plate, the first slide rail group is slidingly matched with the upper pressing plate module, the first bottom plate is provided with a plurality of openings, and a plurality of conducting assemblies are correspondingly arranged at the plurality of openings.

[0007] Further, the conducting assembly comprises a conducting base, a floating needle block, a probe group and a plurality of conducting floating members, one end of the conducting base is fixedly connected with the first bottom plate, the probe group is connected with the other end of the conducting base, the floating needle block is slidingly matched with the probe group, the floating needle block is floatingly matched with the conducting base through the plurality of conducting floating members, and the floating needle block is provided with a matching groove matched with a product.

[0008] Further, the upper pressing plate module comprises two groups of supporting blocks, a pressing plate mounting plate, a plurality of supporting columns, a plurality of first pressing members and a plurality of second pressing members, the two groups of supporting blocks are provided with sliding grooves, the pressing plate mounting plate is slidingly matched with the sliding grooves, one end of each of the plurality of supporting columns is fixedly connected with the pressing plate mounting plate, the other end of each of the plurality of supporting columns is limitingly matched with the first side pushing module, the pressing plate mounting plate is slidingly matched with the first side pushing module, each of the plurality of first pressing members and the plurality of second pressing members is fixedly connected with the pressing plate mounting plate, the first pressing member is limitingly matched with a connecting end of a product, and the second pressing member is tightly positioned with a fixed end of the product.

[0009] Further, the first pressing member comprises a first lower pressing seat, a plurality of first elastic members and a first pressing block, the first lower pressing seat is fixedly connected with the pressing plate mounting plate, one end of each of the plurality of first elastic members is top-pressing matched with the first lower pressing seat, the other end of each of the plurality of first elastic members is connected with the first pressing block, the first pressing block is provided with a limiting block, and the limiting block is limitingly matched with the connecting end of the product.

[0010] Further, the second pressing member comprises a second lower pressing seat, a plurality of second elastic members and a plurality of second lower pressing members, the second lower pressing seat is fixedly connected with the pressing plate mounting plate, a plurality of second elastic members are correspondingly connected between the second lower pressing seat and the plurality of second lower pressing members, the second lower pressing seat is provided with a plurality of through holes, and the plurality of second lower pressing members pass through the through holes to tightly position the fixed end of the product.

[0011] Further, the floating support module comprises a floating base, a plurality of linear bearings, a floating plate and a plurality of floating limiting pieces, the floating plate is floatingly connected with the floating base through a plurality of floating elastic pieces, the plurality of linear bearings are arranged on the floating base, the floating plate is guided and matched with the plurality of linear bearings, and the plurality of floating limiting pieces are symmetrically arranged on the floating plate; the floating base and the floating plate are both provided with a reserved groove matched with the second side pushing module.

[0012] Further, the second side pushing module comprises a second side pushing plate, a second side pushing driving device, two groups of second slide rail groups and a plurality of magnetic top pushing assemblies, the movable end of the second side pushing driving device is clamped and connected with the second side pushing plate, the two groups of second slide rail groups are arranged on the two sides of the second side pushing plate, and the plurality of magnetic top pushing assemblies are arranged on the second side pushing plate; the plurality of magnetic top pushing assemblies are magnetically adsorbed and matched with the connecting end of the product.

[0013] Further, the magnetic top pushing assembly comprises a top pushing base, a floating plate, a plurality of floating elastic pieces, a magnetic piece and a plurality of high screws, the top pushing base is fixedly connected with the second side pushing plate, the plurality of floating elastic pieces are correspondingly sleeved in the plurality of high screws, the plurality of high screws are all slidingly matched with the top pushing base, one end of the plurality of high screws is top-pressing matched with the top pushing base, the other end of the plurality of high screws is connected with the floating plate, and the magnetic piece is arranged on the upper portion of the top pushing base and magnetically adsorbed with the connecting end of the product.

[0014] The beneficial effects of the present application are that: since a plurality of mounting blocks are uniformly arranged in the carrier plate, the product is placed into the mounting block along the mounting groove position and is preliminarily positioned through the positioning piece, the carrier plate is floatingly mounted on the floating support module, the floating support template ensures that the carrier plate does not tilt on one side during the compression process, so that part of the product cannot be effectively connected, after the carrier plate is mounted, the external vertical transfer mechanism drives the upper pressing plate module and the first side pushing module to approach the carrier plate, the plurality of first pressing pieces and the plurality of second pressing pieces in the upper pressing plate module press and position the product in the mounting block through the downward pressure of the spring to avoid movement of the product during side pushing, after being pressed into place, the second side pushing module is retracted to drive the plurality of magnetic top pushing assemblies to approach and magnetically adsorb the connecting end of the product, so that the connecting end of the product is fixed to ensure that the connection position is accurate, the precision is improved, the first side pushing module is in contact with the connecting end of the product to start testing, the overall structure is compact and simple, the space utilization rate is high, the upper pressing plate module positions and presses the fixed end and the connecting end of the product through the two groups of pressing pieces, so that the product is prevented from being upwardly tilted during side pushing, the second side pushing module uses magnetic adsorption to position the connecting end of the product, so that the position is accurate when the first side pushing module is in contact, and the positioning precision is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is an explosion diagram of the present application;

[0016] Figure 2 is the structural schematic diagram of the first side pushing module of the present application;

[0017] Figure 3 is the exploded view of the on-off assembly of the present application;

[0018] Figure 4 is the structural schematic diagram of the upper pressing plate module of the present application;

[0019] Figure 5 is the structural schematic diagram of the first pressing member of the present application;

[0020] Figure 6 is the structural schematic diagram of the second pressing member of the present application;

[0021] Figure 7 is the structural schematic diagram of the floating support module of the present application;

[0022] Figure 8 is the structural schematic diagram of the second side pushing module of the present application;

[0023] Figure 9 is the exploded view of the magnetic pushing assembly of the present application;

[0024] Figure 10 is the structural schematic diagram of the product pressing state of the present application;

[0025] Figure 11 is the structural schematic diagram of the carrier plate and the mounting block of the present application;

[0026] Figure 12 is the structural schematic diagram of the mounting block of the present application. DETAILED DESCRIPTION

[0027] As Figure 1 , Figure 11 and Figure 12As shown, in the present embodiment, the present application comprises a first side pushing die set 1, an upper pressing plate die set 2, a carrier plate 3, a floating support die set 4 and a second side pushing die set 5 arranged in sequence from top to bottom, the first side pushing die set 1 is in sliding fit with the upper pressing plate die set 2, the carrier plate 3 is detachably connected with a plurality of mounting blocks 6, the upper pressing plate die set 2 locks the product in the mounting block 6, a plurality of mounting blocks 6 are adapted to the shape of the product, the floating support die set 4 is in guiding fit with the carrier plate 3, the second side pushing die set 5 is in sliding fit with the floating support die set 4, the second side pushing die set 5 magnetically attracts and presses the product to make it in conductive connection with the first side pushing die set 1, the upper pressing plate die set 2 is connected with an external vertical moving mechanism, the external vertical moving mechanism drives the upper pressing plate die set 2 and the first side pushing die set 1 to approach the carrier plate 3, the floating support die set 4 is connected with an external fixing mechanism, a plurality of mounting blocks 6 are provided with mounting grooves and positioning members, the mounting grooves are designed to be adapted to the position of the product shape, the positioning members are provided with bevels for guiding and positioning engagement with the hollowed-out positions of the product, the mounting grooves are in cooperation with the first pressing members 24 and the second pressing blocks to position and press the product, the carrier plate 3 is provided with a plurality of mounting positions in guiding fit with the mounting blocks 6, a plurality of guide sleeves and a plurality of positioning holes, a plurality of guide sleeves are symmetrically arranged at two opposite corners of the carrier plate 3 and are in guiding fit with the floating support die set 4, a plurality of positioning holes are correspondingly arranged around the plurality of guide sleeves, during testing, a plurality of mounting blocks 6 are evenly placed in the carrier plate 3, the product is placed in the mounting block 6 along the mounting groove position and is preliminarily positioned by the positioning member, the carrier plate 3 is floatingly installed on the floating support die set 4, the floating support die set ensures that the carrier plate 3 does not tilt on one side during compression, causing part of the product to be unable to be effectively connected, after the carrier plate 3 is installed, the external vertical moving mechanism drives the upper pressing plate die set 2 and the first side pushing die set 1 to approach the carrier plate 3, a plurality of first pressing members 24 and a plurality of second pressing members 25 in the upper pressing plate die set 2 press the product into the mounting block 6 through the downward pressure of the spring to avoid movement of the product during side pushing, after being pressed into position, the second side pushing die set 5 retracts to drive a plurality of magnetic top pushing assemblies 54 to approach and magnetically attract the connection end of the product, fixing the connection end of the product to ensure accurate connection position and improve precision, the first side pushing die set 1 contacts the connection end of the product to start testing, the overall structure is compact and simple, the space utilization rate is high, the upper pressing plate die set 2 positions and presses the fixed end and the connection end of the product through two groups of pressing members to avoid the product from being raised upward during side pushing, the second side pushing die set 5 uses magnetic attraction to position the connection end of the product to ensure accurate position when the first side pushing die set 1 contacts, improving positioning precision.

[0028] As Figure 2As shown, in this embodiment, the first side-push module 1 includes a first base plate 11, a first side-push drive device 12, a first slide rail group 13, and a plurality of conductive components 14. The output end of the first side-push drive device 12 is fixedly connected to the upper pressure plate module 2, and the output end of the first side-push drive device 12 is engaged with the first base plate 11. The first slide rail group 13 is connected to both sides of the first base plate 11, and the first slide rail group 13 is slidably engaged with the upper pressure plate module 2. The first base plate 11 is provided with a plurality of openings, and a plurality of conductive components 14 are correspondingly arranged at the plurality of openings. The first side-push drive device 12 is a telescopic cylinder. The first slide rail group 13 includes a first slide rail and a first slider. The first slide rail is respectively installed on both sides of the pressure plate mounting plate 22. The first slider is fixedly connected to the first base plate 11, and the first slide rail and the first slider are slidably engaged. The first side-push drive device 12 drives the first base plate 11 to slide relative to the pressure plate mounting plate 22.

[0029] like Figure 3 As shown, in this embodiment, the conductive assembly 14 includes a conductive base 141, a floating needle block 142, a probe group 143, and a plurality of conductive floating components 144. One end of the conductive base 141 is fixedly connected to the first base plate 11, and the probe group 143 is connected to the other end of the conductive base 141. The floating needle block 142 is slidably engaged with the probe group 143. The floating needle block 142 is floatingly engaged with the conductive base 141 through a plurality of conductive floating components 144. The floating needle block 142 is provided with a mating groove 145 adapted to the product. The conductive base 141 is fixed to the first base plate 11 by screws. The conductive floating components 144 include equal-height components. The screw and the first spring are fitted into the equalizing screw. One end of the equalizing screw is pressed against the conductive base 141, and the other end of the equalizing screw is threaded into the floating needle block 142. The floating needle block 142 is provided with a second spring and a probe sleeve. The probe sleeve has several through holes that mate with the probes. The second spring is set on both sides of the probe sleeve so that it floats and mates with the floating needle block 142. The probe sleeve has a positioning groove that matches the product connection end. The compression force of the second spring is less than that of the first spring. When it contacts the product connection end, it first floats and guides before positioning and pressing. The guiding and positioning process is accurate, thus effectively protecting the probe group 143 and preventing misalignment that could damage the probe group 143.

[0030] like Figure 4As shown, in this embodiment, the upper pressure plate module 2 includes two sets of support blocks 21, a pressure plate mounting plate 22, a plurality of support columns 23, a plurality of first clamping members 24, and a plurality of second clamping members 25. The two sets of support blocks 21 are provided with sliding grooves, and the pressure plate mounting plate 22 is slidably engaged with the sliding grooves. One end of each of the plurality of support columns 23 is fixedly connected to the pressure plate mounting plate 22, and the other end of each of the plurality of support columns 23 is limitedly engaged with the first side-push module 1. The pressure plate mounting plate 22 is slidably engaged with the first side-push module 1. The plurality of first clamping members 24... The first clamping member 24 and several second clamping members 25 are fixedly connected to the pressure plate mounting plate 22. The first clamping member 24 is limited to the product connection end, and the second clamping member 25 is pressed and positioned to the fixed end of the product. Both sets of support blocks 21 are provided with round holes, which are connected to the first side push mold group 1. The support columns 23 are evenly arranged on the pressure plate mounting plate 22. The support column 23 located in the middle is limited to the first base plate 11, which restricts the extreme position of the first side push mold group 1 to move back and forth. The support column 23 can also effectively prevent the pressure plate mounting plate 22 from being deformed by pressure and affecting the test results.

[0031] like Figure 5 As shown, in this embodiment, the first pressing member 24 includes a first pressing seat 241, a plurality of first elastic members 242, and a first pressing block 243. The first pressing seat 241 is fixedly connected to the pressure plate mounting plate 22. One end of the plurality of first elastic members 242 is pressed against the first pressing seat 241, and the other end of the plurality of first elastic members 242 is connected to the first pressing block 243. The first pressing block 243 is provided with a limiting block 244, which is in a limiting fit with the connecting end of the product. The first elastic members 242 are springs, and the limiting block 244 is rectangular. The limiting block 244 is used to prevent the connecting end of the product from tilting upwards and affecting the test results during the side push process.

[0032] like Figure 6 As shown, in this embodiment, the second pressing member 25 includes a second pressing seat 251, a plurality of second elastic members 252, and a plurality of second pressing members 253. The second pressing seat 251 is fixedly connected to the pressure plate mounting plate 22. The plurality of second elastic members 252 are correspondingly connected between the second pressing seat 251 and the plurality of second pressing members 253. The second pressing seat 251 is provided with a plurality of through holes. The plurality of second pressing members 253 pass through the through holes and are pressed and positioned against the fixed end of the product. The second pressing seat 251 is provided with a plurality of stepped holes. The plurality of second pressing members 253 are correspondingly disposed on the plurality of stepped holes. The second elastic members 252 are springs. The second pressing members 253 are cylindrical and have rounded corners at the end that contacts the product. The second pressing member 25 mainly presses against the fixed end of the product at four points to avoid displacement during the side pushing process of the product affecting the test.

[0033] likeFigure 7 As shown, in this embodiment, the floating support module 4 includes a floating seat 41, several linear bearings 42, a floating plate 43, and several floating limiting members 44. The floating plate 43 is floatingly connected to the floating seat 41 through several floating elastic members 543. The several linear bearings 42 are all disposed on the floating seat 41, and the floating plate 43 is guided and cooperated with the several linear bearings 42. The several floating limiting members 44 are symmetrically disposed on the floating plate 43. Both the floating seat 41 and the floating plate 43 have reserved slots that cooperate with the second side push module 5. The floating elastic members 543 are rectangular springs and spring pins. The rectangular springs are sleeved on the spring pins, and the spring pins are connected between the floating seat 41 and the floating plate 43. The spring pins ensure that the rectangular springs will not deform laterally during compression, thereby ensuring that the vertical downward pressure during compression does not affect the downward pressure effect of the carrier plate 3. The floating limiting members 44 are equal-height screws. Adjusting the extension distance of the floating limiting members 44 limits the downward pressure distance of the floating plate 43. The structure is simple and easy to use.

[0034] like Figure 8 As shown, in this embodiment, the second side-push module 5 includes a second side-push plate 51, a second side-push drive device 52, two sets of second slide rail groups 53, and several magnetic push components 54. The movable end of the second side-push drive device 52 is engaged with the second side-push plate 51. The two sets of second slide rail groups 53 are arranged on both sides of the second side-push plate 51. Several magnetic push components 54 are all arranged on the second side-push plate 51. Several magnetic push components 54 are magnetically attracted to the connecting end of the product. The second slide rail group 53 includes a second track and a second slider. The second track is connected to the floating seat 41. The lower surface is fixedly connected, the second slider is fixedly connected to the second side push plate 51, and the second side push device is a telescopic cylinder. The second side push drive device 52 drives several magnetic push components 54 to connect with the product's connection end. During testing, the second side push drive device 52 drives the magnetic push components 54 to approach the product's connection end. The magnetic push components 54 use magnetic force to attract the product's connection end to the side surface of the floating plate 43, avoiding the product's connection end from shaking and affecting the probe connection. During reset, the magnetic push components 54 are always in close contact with the product's connection end until the magnetic force of the magnet is insufficient to attract the product, avoiding product deformation caused by magnetic attraction during reset.

[0035] like Figure 9As shown, in the embodiment, the magnetic pushing assembly 54 comprises a pushing seat 541, a floating block 542, a plurality of floating elastic members 543, a magnetic member 544 and a plurality of equal-height screws 545, the pushing seat 541 is fixedly connected with the second side pushing plate 51, the floating elastic members 543 are correspondingly sleeved in the equal-height screws 545, the equal-height screws 545 are in sliding fit with the pushing seat 541, one end of the equal-height screws 545 is in top pressing fit with the pushing seat 541, the other end of the equal-height screws 545 is connected with the floating block 542, the magnetic member 544 is arranged on the upper portion of the pushing seat 541 and is in magnetic adsorption with the connecting end of the product, the floating elastic member 543 is a spring, the magnetic member 544 is a magnet, the middle section of the equal-height screw 545 is a smooth section and is in sliding fit with the pushing seat 541, the pushing seat 541 is provided with a protrusion, the floating block 542 is in guiding fit with the protrusion, the magnetic member 544 is arranged in the protrusion, there is no magnetic adsorption relationship between the floating block 542 and the magnetic member 544, when the floating block 542 is in a normal state, the floating elastic member 543 is pushed out by the spring force, the floating block 542 first contacts the product and pushes the connecting end of the product to a vertical state, the floating elastic member 543 is continuously compressed, the magnetic force of the magnetic member 544 starts to affect the product, the second side pushing driving device 52 is moved to a position, the magnetic member 544 adsorbs the product and firmly adheres to the side surface of the floating block 542, the test is ended, the cylinder starts to reset, the floating elastic member 543 starts to rebound, and the elastic force of the floating elastic member 543 always pushes the floating block 542 in the process of the pushing seat 541 returning, so that the product is prevented from being pulled and deformed. When the magnetic member 544 is far away and the magnetic force is insufficient to adsorb the product, the floating block 542 is separated from the product to be tested, the spring force is greater than the magnetic force of the magnet on the product in the process, and the product is prevented from being damaged.

[0036] Working principle of the present application:

[0037] When testing, a plurality of mounting blocks 6 are evenly placed in the carrier plate 3, the product is placed in the mounting block 6 along the mounting groove position and is preliminarily positioned by the positioning member, the carrier plate 3 is floatingly mounted on the floating support module 4, after the carrier plate 3 is mounted, the external vertical moving mechanism drives the upper pressing plate module 2 and the first side pushing module 1 to approach the carrier plate 3, the plurality of first pressing members 24 and the plurality of second pressing members 25 in the upper pressing plate module 2 press and position the product in the mounting block 6 through the downward pressure of the spring, after being pressed to the position, the second side pushing driving device 52 drives the magnetic pushing assembly 54 to approach the product connection end, pushes the product connection end to the vertical state, the floating elastic member 543 continues to be compressed, the suction force of the magnetic member 544 begins to affect the product, the second side pushing driving device 52 moves to the position, the magnetic member 544 sucks the product and firmly adheres to the side surface of the floating block 542, the testing is completed, the air cylinder starts to reset, the floating elastic member 543 starts to rebound, in the process of the pushing seat 541 back, the elastic force of the floating elastic member 543 always pushes the floating block 542, the first side pushing driving device 12 drives the conduction assembly 14 to contact and conduct with the product connection end and starts to test.

[0038] After the testing is completed, the first side pushing driving device 12 drives the conduction assembly 14 to separate from the product connection end, the second side pushing driving device 52 drives the magnetic pushing assembly 54 to separate from the product connection end, the external vertical driving device lifts and drives the upper pressing plate module 2 and the first side pushing module 1 to move away from the carrier plate 3, the first pressing member 24 and the second pressing member 25 move away from the product and complete the reset.

[0039] Although the embodiments of the present application are described in actual schemes, but do not constitute a limitation to the meaning of the present application, for those skilled in the art, according to the modification of the embodiments and the combination with other schemes according to the present application are obvious.

Claims

1. A magnetically attached precision positioning test fixture, characterized in that: It includes first side push module (1), upper pressing plate module (2), carrier plate (3), floating support module (4) and second side push module (5) arranged in turn from top to bottom, the first side push module (1) is in sliding fit with the upper pressing plate module (2), the carrier plate (3) is detachably connected with a plurality of mounting blocks (6), the upper pressing plate module (2) locks the product in the mounting block (6), a plurality of the mounting block (6) is adapted to the shape of the product, the floating support module (4) is in guiding fit with the carrier plate (3), the second side push module (5) is in sliding fit with the floating support module (4), the second side push module (5) magnetically attracts and top-presses the product to make it in conductive connection with the first side push module (1), the upper pressing plate module (2) includes two groups of supporting blocks (21), pressing plate mounting plate (22), a plurality of supporting columns (23), a plurality of first pressing members (24) and a plurality of second pressing members (25), two groups of the supporting block (21) are provided with a sliding groove, the pressing plate mounting plate (22) is in sliding fit with the sliding groove, one end of a plurality of the supporting column (23) is fixedly connected with the pressing plate mounting plate (22), the other end of a plurality of the supporting column (23) is in limiting fit with the first side push module (1), the pressing plate mounting plate (22) is in sliding fit with the first side push module (1), a plurality of the first pressing member (24) and a plurality of the second pressing member (25) are fixedly connected with the pressing plate mounting plate (22), the first pressing member (24) is in limiting fit with the product connection end, and the second pressing member (25) is in pressing positioning with the fixed end of the product.

2. The magnetic precise positioning test fixture of claim 1, wherein: The first side push module (1) includes first bottom plate (11), first side push driving device (12), first slide rail group (13) and a plurality of conductive assemblies (14), the output end of the first side push driving device (12) is fixedly connected with the upper pressing plate module (2), the output end of the first side push driving device (12) is clampedly connected with the first bottom plate (11), the first slide rail group (13) is connected on both sides of the first bottom plate (11), the first slide rail group (13) is in sliding fit with the upper pressing plate module (2), the first bottom plate (11) is provided with a plurality of openings, and a plurality of the conductive assemblies (14) are correspondingly arranged at a plurality of the openings.

3. The magnetic precise positioning test fixture of claim 2, wherein: The conductive assembly (14) includes conductive base (141), floating needle block (142), probe group (143) and a plurality of conductive floating members (144), one end of the conductive base (141) is fixedly connected with the first bottom plate (11), the probe group (143) is connected with the other end of the conductive base (141), the floating needle block (142) is in sliding fit with the probe group (143), the floating needle block (142) is in floating fit with the conductive base (141) through a plurality of the conductive floating members (144), and the floating needle block (142) is provided with a matching groove (145) adapted to the product.

4. The magnetic precise positioning test fixture of claim 3, wherein: The first pressing part (24) comprises a first lower pressing seat (241), a plurality of first elastic elements (242) and a first pressing block (243), the first lower pressing seat (241) is fixedly connected with the pressing plate mounting plate (22), one end of the plurality of first elastic elements (242) is in top pressing cooperation with the first lower pressing seat (241), the other end of the plurality of first elastic elements (242) is connected with the first pressing block (243), the first pressing block (243) is provided with a limiting block (244), and the limiting block (244) is in limiting cooperation with the connecting end of the product.

5. The magnetic precise positioning test fixture of claim 3, wherein: The second pressing part (25) comprises a second lower pressing seat (251), a plurality of second elastic elements (252) and a plurality of second lower pressing parts (253), the second lower pressing seat (251) is fixedly connected with the pressing plate mounting plate (22), the plurality of second elastic elements (252) are connected between the second lower pressing seat (251) and the plurality of second lower pressing parts (253), the second lower pressing seat (251) is provided with a plurality of through holes, and the plurality of second lower pressing parts (253) pass through the through holes and are pressed and positioned with the fixed end of the product.

6. The magnetic precise positioning test fixture of claim 1, wherein: The floating support module (4) comprises a floating seat (41), a plurality of linear bearings (42), a floating plate (43) and a plurality of floating limiting parts (44), the floating plate (43) is floatingly connected with the floating seat (41) through a plurality of floating elastic elements (543), the plurality of linear bearings (42) are all arranged on the floating seat (41), the floating plate (43) is in guiding cooperation with the plurality of linear bearings (42), the plurality of floating limiting parts (44) are symmetrically arranged on the floating plate (43), and the floating seat (41) and the floating plate (43) are both provided with a reserved groove matched with the second side pushing module (5).

7. The magnetic precise positioning test fixture of claim 1, wherein: The second side pushing module (5) comprises a second side pushing plate (51), a second side pushing driving device (52), two groups of second slide rail groups (53) and a plurality of magnetic top pushing assemblies (54), the movable end of the second side pushing driving device (52) is clampedly connected with the second side pushing plate (51), the two groups of second slide rail groups (53) are arranged on the two sides of the second side pushing plate (51), the plurality of magnetic top pushing assemblies (54) are all arranged on the second side pushing plate (51), and the plurality of magnetic top pushing assemblies (54) are in magnetic adsorption cooperation with the connecting end of the product. 8.The magnetic precise positioning test fixture of claim 7, wherein: The magnetic pushing assembly (54) comprises a pushing seat (541), a floating block (542), a plurality of floating elastic members (543), a magnetic member (544) and a plurality of equal-height screws (545), the pushing seat (541) is fixedly connected with the second side pushing plate (51), the plurality of floating elastic members (543) are correspondingly sleeved in the plurality of equal-height screws (545), the plurality of equal-height screws (545) are all in sliding fit with the pushing seat (541), one end of the plurality of equal-height screws (545) is in top pressing fit with the pushing seat (541), the other end of the plurality of equal-height screws (545) is connected with the floating block (542), and the magnetic member (544) is arranged on the upper portion of the pushing seat (541) and is in magnetic adsorption with the connecting end of the product.

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