A 4-bit and 8-bit test socket compatible device

Abstract

The present invention discloses a 4-bit and 8-bit test socket mutual compatibility device, comprising: a test socket, an L bracket and a fixed seat, the test socket is connected to any one of the L bracket and the fixed seat, the L bracket is detachably connected to the side end of the test socket, and the fixed seat is detachably connected to the top of the test socket. The present invention sets an L bracket at the side end of the test socket, adjusts the horizontal position of the test socket by the L bracket, realizes 4-station parallel testing of the test board, replaces the L bracket with the original fixed seat, realizes 8-station parallel testing of OS products, is simple to operate, effectively realizes 4-station and 8-station compatible testing, optimizes the utilization rate of the test platform, improves the test capacity, reduces the cost of equipment use, and reduces resource waste.

Description

Technical Field

[0001] The invention relates to the technical field of semiconductor testing, in particular to a 4-bit and 8-bit test socket mutually compatible device. Background Art

[0002] From the idea to the final product that can be delivered to customers, semiconductor chips generally include chip design, chip production, chip packaging and chip testing. As an indispensable link in the semiconductor industry chain, semiconductor testing is becoming more and more important in the project as the process continues to go down and its scale and complexity continue to increase. To some extent, it determines whether the product can be mass-produced and delivered to customers on time. After semiconductor packaging, FT (final test) testing is usually required. Before leaving the factory, faulty chips are screened out with the minimum time cost. The test data results are also used for process monitoring and optimization as well as product design optimization. Most of the existing test models can only test OS products and cannot be equipped with test boards. The startup rate is 61.5%, resulting in a waste of equipment capacity. At the same time, the existing FT test capacity cannot keep up with demand, resulting in a waste of resources. Therefore, in order to solve the above problems, it is urgent to design a 4-bit and 8-bit test socket compatible device. Summary of the invention

[0003] In order to solve the above technical problems, the present invention discloses a 4-bit and 8-bit test socket mutual compatibility device, wherein an L bracket is arranged at the side end of the test socket, and the horizontal position of the test socket is adjusted by the L bracket to realize 4-station parallel testing of the test board, and the L bracket is replaced with the original fixed seat to realize 8-station parallel testing of the OS product, which is simple to operate, effectively realizes the compatibility test of 4 stations and 8 stations, optimizes the utilization rate of the test platform, improves the test capacity, reduces the equipment use cost, and reduces the waste of resources; it includes:

[0004] A test seat, an L bracket and a fixing seat, wherein the test seat is connected to any one of the L bracket and the fixing seat, the L bracket is detachably connected to the side end of the test seat, and the fixing seat is detachably connected to the top end of the test seat.

[0005] Preferably, when a semiconductor is subjected to four-station parallel testing, the test seat is connected to the test platform via an L bracket.

[0006] Preferably, when eight-station parallel testing is performed on a semiconductor, the test seat is connected to the test platform via a fixing seat.

[0007] Preferably, the L bracket includes a first bracket plate and a second bracket plate, the first bracket plate and the second bracket plate are welded to form an L shape, the first bracket plate is provided with two through holes, and the side end of the test seat is correspondingly provided with a threaded hole, and the through hole and the threaded hole are connected by bolts.

[0008] Preferably, the L bracket also includes an adjustment plate, which is connected to an end of the second bracket plate away from the first bracket plate, and the adjustment plate and the first bracket plate are both arranged vertically with the second bracket plate, and the adjustment plate is detachably connected to the test platform.

[0009] Preferably, a first slide groove is provided at one end of the adjustment plate close to the second bracket plate, a rotating plate is rotatably connected to the side end of the second bracket plate, the rotating plate is slidably connected in the first slide groove, and the second bracket plate is slidably connected to the adjustment plate.

[0010] Preferably, a rack groove is provided on the inner side wall of the first slide groove, a plurality of latch teeth are evenly connected to the side end of the rotating plate, the rotating plate is meshedly connected to the rack groove, the end of the rotating plate away from the second bracket plate is connected to the motor output shaft, and the motor is fixedly connected to the second bracket plate through a support plate.

[0011] Preferably, the surface of the second bracket plate connected to the adjustment plate is provided with scale lines, and the scale lines are symmetrically arranged on both sides of the rotating plate.

[0012] Preferably, the L bracket further includes an anti-falling device, and the anti-falling device includes:

[0013] An anti-slip block, the anti-slip block is fixedly connected to the top end of the second bracket plate;

[0014] An anti-slip groove, wherein the anti-slip groove is provided in the adjusting plate, and the anti-slip block is slidably connected in the anti-slip groove;

[0015] A sliding hole, the sliding hole being opened at the top of the anti-slip block;

[0016] A slider, the slider is slidably connected to the inner wall of the sliding hole, and a spring is connected between the slider and the bottom end of the sliding hole;

[0017] A wedge-shaped groove, wherein a plurality of the wedge-shaped grooves are evenly arranged at the side end of the slider, and the bottom surface of the wedge-shaped groove is configured as an inclined surface which gradually rises from the outside to the inside;

[0018] Through grooves, a plurality of said through grooves are evenly arranged at the side ends of said anti-slip block, said through grooves are respectively connected with the wedge-shaped grooves, and a baffle is fixedly connected to the inner wall of said through groove;

[0019] A limit block, wherein the limit block is slidably connected in the through slot, and one end of the limit block passes through the through slot and extends into the wedge-shaped slot;

[0020] A second slide groove, wherein the second slide groove is provided at the bottom end of the limit block, the baffle plate is slidably connected in the second slide groove, and a spring is connected between the limit block and the baffle plate;

[0021] Limiting grooves, a plurality of the limiting grooves are evenly arranged at the side ends of the anti-slip grooves, the limiting grooves correspond to the positions of the through grooves one by one, and the height of the limiting grooves is greater than the height of the limiting blocks;

[0022] A magnetic block, the magnetic block is fixedly connected to the inner bottom end of the slider;

[0023] An electromagnetic block, the electromagnetic block is fixedly connected to the inner bottom end of the anti-dropping block, and the electromagnetic block repels the magnetic block after being energized;

[0024] A top groove, which is provided in the adjusting plate and is connected to the top of the anti-slip groove;

[0025] A push rod, the push rod is fixedly connected to the top of the slider, and two push rods are symmetrically arranged;

[0026] A rotating rod, the rotating rod is hinged to the top end of the push rod, the rotating rod extends into the top groove, and a coil spring is connected to the hinge between the rotating rod and the push rod;

[0027] Limiting teeth, the limiting teeth are evenly connected to the bottom end of the inner wall of the top groove;

[0028] A fall-off sensing device is fixedly connected to the top of the anti-fall-off block, a detection end of the fall-off sensing device is connected to the top of the inner wall of the anti-fall-off groove, and the fall-off sensing device is electrically connected to the electromagnetic block.

[0029] Preferably, the shedding sensing device comprises:

[0030] A shell, the shell being fixedly connected to the top of the anti-fall-off block;

[0031] A sliding column, the sliding column is fixedly connected to the top end of the inner wall of the shell;

[0032] A sliding seat, the sliding seat is sleeved on the outside of the sliding post, and the sliding seat is slidably connected to the sliding post, and the sliding seat is vertically arranged and extends out of the housing;

[0033] A return spring, wherein the return spring is sleeved on the slide post and connected between the bottom end of the slide seat and the inner wall of the shell;

[0034] A roller, the roller is hinged to the top of the slide seat, the roller rotates at the top of the inner wall of the anti-slip groove, and the rotation direction of the roller is consistent with the sliding direction of the anti-slip block;

[0035] A rack, the rack is fixedly connected to the side end of the slide seat, and the rack is arranged vertically;

[0036] A gear, the gear being rotatably connected to the inner wall of the housing, and the gear being meshingly connected to the rack;

[0037] A sensing groove, the sensing groove is connected to the bottom end of the inner wall of the housing, and the sensing groove is arranged below the gear;

[0038] A push plate, the push plate being slidably connected to the inner wall of the sensing slot;

[0039] A connecting rod, one end of which is hinged to the push plate, and the other end of which is eccentrically hinged to the gear;

[0040] A trigger switch, the trigger switch is fixedly connected to the bottom end of the push plate, and the trigger switch is electrically connected to the electromagnetic block;

[0041] A trigger seat is fixedly connected to the inner wall of the induction slot, the trigger seat is energized, the trigger seat is adapted to the trigger switch, and a spring is connected between the top of the trigger seat and the push plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 It is a schematic diagram of the structure of the present invention;

[0044] Figure 2 This is a schematic diagram of the connection structure between the adjustment plate and the second bracket plate of the present invention;

[0045] Figure 3 This is a schematic diagram of the motor installation structure of the present invention;

[0046] Figure 4 This is a schematic diagram of the scale line distribution structure of the present invention;

[0047] Figure 5 This is a schematic diagram of the position of the anti-falling device of the present invention;

[0048] Figure 6 It is a schematic diagram of the structure of the anti-falling device of the present invention;

[0049] Figure 7 For the present invention Figure 6 A schematic diagram of the partially enlarged structure at center A;

[0050] Figure 8 It is a schematic structural diagram of the shedding sensing device of the present invention.

[0051] In the figure: 1. Test seat; 2. L bracket; 3. Fixed seat; 21. First bracket plate; 22. Second bracket plate; 23. Through hole; 24. Adjustment plate; 25. First slide groove; 26. Turn plate; 27. Rack groove; 28. Motor; 29. ​​Scale line; 41. Anti-slip block; 42. Anti-slip groove; 43. Sliding hole; 44. Sliding block; 45. Wedge groove; 46. Through groove; 47. Baffle; 48. Limit block; 49. Second slide groove ; 410. Limiting groove; 411. Magnetic block; 412. Electromagnetic block; 413. Top groove; 414. Push rod; 415. Rotating rod; 416. Limiting tooth; 417. Dropping sensing device; 51. Housing; 52. Sliding column; 53. Sliding seat; 54. Reset spring; 55. Roller; 56. Rack; 57. Gear; 58. Sensing groove; 59. Push plate; 510. Connecting rod; 511. Trigger switch; 512. Trigger seat. DETAILED DESCRIPTION

[0052] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] Example

[0054] The present invention will be further described below in conjunction with the accompanying drawings.

[0055] like Figure 1-8 As shown, this embodiment provides a 4-bit and 8-bit test socket compatible device, including:

[0056] A test seat 1, an L bracket 2 and a fixing seat 3, wherein the test seat 1 is connected to any one of the L bracket 2 and the fixing seat 3, the L bracket 2 is detachably connected to the side end of the test seat 1, and the fixing seat 3 is detachably connected to the top end of the test seat 1.

[0057] The working principle of the present invention is:

[0058] The present invention provides a 4-bit and 8-bit test socket mutual compatibility device. When an OS product is tested at 8 stations in parallel, 8 test sockets 1 are respectively connected to a test platform through a fixing seat 3 to improve the test capacity. When a test board is tested, an L bracket 2 is connected to the side end of the test socket 1, and the test platform is connected through the L bracket 2. After the test socket 1 is connected to the L bracket 2, its horizontal position can be adjusted to meet the installation of the test board, and the 4-station test board is tested in parallel on the original test platform, thereby realizing the 4-bit and 8-bit compatibility of the test socket 1.

[0059] The beneficial effects of the present invention are:

[0060] The present invention provides a 4-bit and 8-bit test socket mutual compatibility device, wherein an L bracket 2 is arranged at the side end of the test socket 1, and the horizontal position of the test socket 1 is adjusted by the L bracket 2 to realize 4-station parallel testing of the test board, and the L bracket 2 is replaced with the original fixing seat 3 to realize 8-station parallel testing of the OS product. The operation is simple, and the compatibility test of 4 stations and 8 stations is effectively realized, the utilization rate of the test platform is optimized, the test capacity is improved, the equipment use cost is reduced, and the waste of resources is reduced.

[0061] In one embodiment, when a semiconductor is tested in four stages, the test socket 1 is connected to the test platform via an L bracket 2 .

[0062] In one embodiment, when eight-station parallel testing is performed on a semiconductor, the test seat 1 is connected to the test platform via the fixing seat 3 .

[0063] The working principle and beneficial effects of the above technical solution are:

[0064] When testing semiconductors, the test socket 1 of the existing test machine model can only adapt to the size of OS products and test OS products, but cannot adapt to test boards. The test capacity cannot meet the use requirements, resulting in a waste of resources. The existing test platform is equipped with an 8-station machine. When the OS product is tested at 8 stations, the 8 test sockets 1 are connected to the test platform through the fixed seat 3 respectively to improve the test capacity. When the test board is tested, the L bracket 2 is connected to the side end of the test socket 1 and connected to the test platform through the L bracket 2. After the test socket 1 is connected to the L bracket 2, its horizontal position can be adjusted to meet the installation of the test board, and the 4-station test board can be tested on the original test platform, thereby achieving 4-bit and 8-bit compatibility of the test socket 1, and compatibility with OS products and test boards, improving the utilization rate and test capacity of the test platform, and reducing the cost of equipment use.

[0065] like Figure 1 As shown, in one embodiment, the L bracket 2 includes a first bracket plate 21 and a second bracket plate 22, the first bracket plate 21 and the second bracket plate 22 are welded to form an L shape, the first bracket plate 21 is provided with two through holes 23, and the side end of the test seat 1 is correspondingly provided with a threaded hole, and the through hole 23 is connected to the threaded hole by a bolt.

[0066] The working principle and beneficial effects of the above technical solution are:

[0067] The L bracket 2 is formed by welding the first bracket plate 21 and the second bracket plate 22. The structural connection strength is high, which can effectively reduce the deformation of the L bracket 2 during use and reduce the cumulative installation error caused by the mechanical connection method. The first bracket plate 21 is threadedly connected to the side end of the test socket 1, which can support and fix the test socket 1, ensure the stability of the test socket 1, reduce the risk of the test socket 1 falling off during use, and improve the reliability of the device.

[0068] like Figure 2 As shown, in one embodiment, the L bracket 2 also includes an adjustment plate 24, which is connected to an end of the second bracket plate 22 away from the first bracket plate 21, and the adjustment plate 24 and the first bracket plate 21 are both arranged vertically with the second bracket plate 22, and the adjustment plate 24 is detachably connected to the test platform.

[0069] The working principle and beneficial effects of the above technical solution are:

[0070] The L bracket 2 is also provided with an adjustment plate 24, which can connect the first bracket plate 21 and the second bracket plate 22 to the test platform to fix the test seat 1, and the adjustment plate 24 is slidably connected to the second bracket plate 22 to realize the horizontal movement of the second bracket plate 22, thereby realizing the adjustment of the horizontal position of the test seat 1. The adjustment plate 24 and the first bracket plate 21 are arranged vertically with the second bracket plate 22, which reduces the processing inclined surface, reduces the production cost, and has a stable structure with high reliability.

[0071] like Figure 2 , 3 As shown, in one embodiment, a first sliding groove 25 is opened at one end of the adjustment plate 24 close to the second bracket plate 22, and a rotating plate 26 is rotatably connected to the side end of the second bracket plate 22, and the rotating plate 26 is slidably connected in the first sliding groove 25, and the second bracket plate 22 is slidably connected to the adjustment plate 24.

[0072] The working principle and beneficial effects of the above technical solution are:

[0073] A rotating plate 26 is rotatably connected to the second bracket plate 22, and the rotating plate 26 is slidably connected to the first slide groove 25 of the adjustment plate 24. The first slide groove 25 runs through the adjustment plate 24. When in use, the tester pushes the rotating plate 26 to slide horizontally in the first slide groove 25, and the rotating plate 26 drives the second bracket plate 22 to move horizontally, thereby adjusting the horizontal position of the test seat 1, so that the test seat 1 can adapt to the size of the test board and can realize the test of the test board, reasonably utilize the test platform space, reduce space waste, and improve test efficiency.

[0074] like Figure 3As shown, in one embodiment, a rack groove 27 is opened on the inner wall of the first slide groove 25, and a plurality of latch teeth are evenly connected to the side end of the rotating plate 26. The rotating plate 26 is meshedly connected with the rack groove 27. The end of the rotating plate 26 away from the second bracket plate 22 is connected to the output shaft of the motor 28, and the motor 28 is fixedly connected to the second bracket plate 22 through a support plate.

[0075] The working principle and beneficial effects of the above technical solution are:

[0076] A rack groove 27 is provided on the inner wall of the first slide groove 25, and a plurality of latching teeth are provided on the side end of the rotating plate 26. When the adjusting plate 24 is in use, the motor 28 is started, and the motor 28 rotates to drive the rotating plate 26 to rotate, so that the rotating plate 26 engages and transmits in the first slide groove 25, drives the second bracket plate 22 to move horizontally, and adjusts the horizontal position of the test seat 1. The motor 28 is connected to the second bracket plate 22 through the support plate, and can move synchronously with the second bracket plate 22 to ensure the continuous transmission. The motor-driven gear transmission method is adopted to improve the accuracy of the transmission ratio, reduce the manual adjustment error, and the motor-driven method is more labor-saving and quick to adjust, and effectively realizes the quick and smooth adjustment of the test seat 1.

[0077] like Figure 4 As shown, in one embodiment, the surface where the second bracket plate 22 is connected to the adjustment plate 24 is provided with scale lines 29 , and the scale lines 29 are symmetrically arranged on both sides of the rotating plate 26 .

[0078] The working principle and beneficial effects of the above technical solution are:

[0079] Scale lines 29 are set on the surface where the second bracket plate 22 and the adjustment plate 24 are connected. In the initial position, the rotating plate 26 is located at the center of the first slide groove 25, and the front and rear ends of the second bracket plate 22 are aligned with the front and rear ends of the adjustment plate 24 respectively. When the adjustment plate 24 is adjusted, the second bracket plate 22 and the adjustment plate 24 are staggered, and the scale lines 29 on one side of the second bracket plate 22 are exposed. According to the readings of the scale lines 29, the adjustment distance of the second bracket plate 22, that is, the adjustment distance of the test seat 1, can be quickly determined, and the observation is more intuitive, so that the tester can make adjustments more accurately, thereby improving the reliability of the adjustment of the L bracket 2.

[0080] like Figure 5-7 As shown, in one embodiment, the L bracket 2 further includes an anti-falling device, and the anti-falling device includes:

[0081] An anti-slip block 41, wherein the anti-slip block 41 is fixedly connected to the top of the second bracket plate 22;

[0082] An anti-slip groove 42, wherein the anti-slip groove 42 is provided in the adjusting plate 24, and the anti-slip block 41 is slidably connected in the anti-slip groove 42;

[0083] A sliding hole 43, wherein the sliding hole 43 is provided at the top of the anti-slip block 41;

[0084] A slider 44, wherein the slider 44 is slidably connected to the inner wall of the slide hole 43, and a spring is connected between the slider 44 and the bottom end of the slide hole 43;

[0085] A wedge-shaped groove 45, wherein a plurality of the wedge-shaped grooves 45 are evenly arranged at the side end of the slider 44, and the bottom surface of the wedge-shaped groove 45 is configured as an inclined surface which gradually rises from the outside to the inside;

[0086] Through grooves 46, a plurality of through grooves 46 are evenly arranged at the side ends of the anti-slip block 41, the through grooves 46 are connected to the wedge-shaped grooves 45, and the inner walls of the through grooves 46 are fixedly connected to baffles 47;

[0087] A limit block 48, wherein the limit block 48 is slidably connected to the through slot 46, and one end of the limit block 48 passes through the through slot 46 and extends to the wedge-shaped slot 45;

[0088] A second slide groove 49, wherein the second slide groove 49 is provided at the bottom end of the limit block 48, the baffle plate 47 is slidably connected in the second slide groove 49, and a spring is connected between the limit block 48 and the baffle plate 47;

[0089] A plurality of limiting grooves 410 are evenly arranged at the side ends of the anti-slip groove 42 , the limiting grooves 410 correspond to the through grooves 46 in one-to-one position, and the height of the limiting grooves 410 is greater than the height of the limiting block 48 ;

[0090] A magnetic block 411, wherein the magnetic block 411 is fixedly connected to the inner bottom end of the slider 44;

[0091] An electromagnetic block 412, wherein the electromagnetic block 412 is fixedly connected to the inner bottom end of the anti-dropping block 41, and the electromagnetic block 412 repels the magnetic block 411 after being energized;

[0092] A top groove 413, wherein the top groove 413 is provided in the adjusting plate 24, and the top groove 413 is connected to the top of the anti-slip groove 42;

[0093] A push rod 414, wherein the push rod 414 is fixedly connected to the top of the slider 44, and the two push rods 414 are symmetrically arranged;

[0094] A rotating rod 415, the rotating rod 415 is hinged to the top of the push rod 414, the rotating rod 415 extends into the top groove 413, and a coil spring is connected to the hinge between the rotating rod 415 and the push rod 414;

[0095] A limiting latch tooth 416, wherein the limiting latch tooth 416 is evenly connected to the bottom end of the inner wall of the top groove 413;

[0096] The falling-off sensing device 417 is fixedly connected to the top of the anti-falling block 41 , the detection end of the falling-off sensing device 417 is connected to the top of the inner wall of the anti-falling groove 42 , and the falling-off sensing device 417 is electrically connected to the electromagnetic block 412 .

[0097] The working principle and beneficial effects of the above technical solution are:

[0098] When the L bracket 2 is in use, there is a risk of the adjustment plate 24 and the second bracket plate 22 falling off, so an anti-falling device is set. When falling off does not occur, the falling-off sensing device 417 does not sense the falling off, the electromagnetic block 42 is not energized, the slider 44 is located at the lower part of the slide hole 43, the limit block 48 is located in the through groove 46, and one end extends into the wedge-shaped groove 45, the rotating rod 415 contacts the bottom edge of the top groove 413 under the action of the coil spring, and the rotating rod 415 does not contact the limit latch tooth 416. When the second bracket plate 22 and the adjustment plate 24 slide relative to each other, the anti-falling block 41 slides in the anti-falling groove 42; when the risk of falling off occurs, the falling-off sensing device 417 senses the falling off, and the electromagnetic block 412 is energized to generate magnetism, and the electromagnetic block 412 and the magnetic block 4 11 repel each other, push the magnetic block 411 to drive the slider 44 to move upward, the limit block 48 slides in the wedge-shaped groove 45, and pushes the limit block 48 to move to the outside of the anti-slip block 41 through the inclined surface, so that the limit block 48 enters the limit groove 410 for clamping, and limits the anti-slip block 41 in the vertical direction to prevent the second bracket plate 22 from continuing to fall. The height of the limit groove 410 is greater than the height of the limit block 48, and a falling distance is reserved for the anti-slip device to operate. At the same time, the push rod 414 extends out of the sliding hole 43 as the slider 44 moves, and the rotating rod 415 rotates to both sides under the action of the coil spring, so that the rotating rod 415 is clamped in the limit clamping tooth 416, and the anti-slip block 41 is limited in the horizontal direction to prevent the second bracket plate 22 from tilting and sliding to one side.

[0099] Through the above structural design, an anti-falling device is arranged on the L bracket 2. When there is a risk of falling off, the slider 44 is driven by magnetic force to move, and the limit block 48 is engaged with the limit groove 410 to limit the second bracket plate 22 in the vertical direction, effectively preventing the second bracket plate 22 from falling off downward, and the rotating rod 415 is engaged with the limit tooth 416 to limit the second bracket plate 22 in the horizontal direction, effectively preventing the inclined sliding caused by the falling off of one end of the second bracket plate 22. At the same time, during normal use, the anti-falling device does not affect the relative sliding of the second bracket plate 22 and the adjusting plate 24. The device has a simple structure, effectively improves the safety of the L bracket 2, reduces the risk of the second bracket plate 22 and the adjusting plate 24 falling off when in use, and plays a protective role against the overall falling off and the tilting caused by unidirectional falling off, so that the test seat 1 can be installed more stably, avoid damage to the test piece during the test process, and protect the test piece and the test platform.

[0100] like Figure 8As shown, in one embodiment, the shedding sensing device 417 includes:

[0101] A housing 51, wherein the housing 51 is fixedly connected to the top of the anti-fall-off block 41;

[0102] A sliding post 52, wherein the sliding post 52 is fixedly connected to the top of the inner wall of the housing 51;

[0103] A slide seat 53, wherein the slide seat 53 is sleeved on the outside of the slide post 52, and the slide seat 53 is slidably connected to the slide post 52, and the slide seat 53 is vertically arranged and extends out of the housing 51;

[0104] A return spring 54, wherein the return spring 54 is sleeved on the slide post 52, and the return spring 54 is connected between the bottom end of the slide seat 53 and the inner wall of the housing 51;

[0105] A roller 55, the roller 55 is hinged to the top of the slide seat 53, the roller 55 rotates at the top of the inner wall of the anti-slip groove 42, and the rotation direction of the roller 55 is consistent with the sliding direction of the anti-slip block 41;

[0106] A rack 56, the rack 56 is fixedly connected to the side end of the slide 53, and the rack 56 is arranged vertically;

[0107] A gear 57, wherein the gear 57 is rotatably connected to the inner wall of the housing 51, and the gear 57 is meshedly connected to the rack 56;

[0108] A sensing groove 58, wherein the sensing groove 58 is connected to the bottom end of the inner wall of the housing 51, and the sensing groove 58 is arranged below the gear 57;

[0109] A push plate 59, wherein the push plate 59 is slidably connected to the inner wall of the sensing groove 58;

[0110] A connecting rod 510, one end of which is hinged to the push plate 59, and the other end of which is eccentrically hinged to the gear 57;

[0111] A trigger switch 511, wherein the trigger switch 511 is fixedly connected to the bottom end of the push plate 59, and the trigger switch 511 is electrically connected to the electromagnetic block 412;

[0112] The trigger seat 512 is fixedly connected to the inner wall of the induction slot 58, the trigger seat 512 is powered, the trigger seat 512 is adapted to the trigger switch 511, and a spring is connected between the top of the trigger seat 512 and the push plate 59

[0113] The working principle and beneficial effects of the above technical solution are:

[0114] When the fall-off sensing device 417 is in use, the slide 53, under the action of the return spring 54, keeps the roller 55 in contact with the anti-fall-off groove 42 at all times, and the roller 55 is rotatably set in the anti-fall-off groove 42, so that the anti-fall-off block 41 and the anti-fall-off groove 42 can slide freely without any obstruction. When the risk of falling off occurs, the gap between the anti-fall-off groove 42 and the anti-fall-off block 41 increases, and the slide 53 slides outward under the action of the return spring 54, and the slide 53 drives the rack 56 to slide upward, and drives the gear 57 to rotate through the meshing transmission. The rotation of the gear 57 causes the connecting rod 510 to push the push plate 59 to slide downward, and the push plate 59 drives the trigger switch 511 to connect with the trigger seat 512, and the trigger switch 511 is energized, so that the electromagnetic block 412 is energized, and the anti-fall-off device is started.

[0115] Through the above-mentioned structural design, by setting the fall-off sensing device 417, a roller 55 is set at the detection end of the device to reduce the friction between the device and the anti-fall-off groove 42, so that the anti-fall-off block 41 and the anti-fall-off groove 42 can slide freely without any obstruction. When the risk of falling off occurs, the rapid detection and identification of the falling off can be effectively realized. Through mechanical transmission, the trigger switch 511 is connected to the trigger seat 512, and the electromagnetic block 412 is energized to start the anti-fall-off device. Compared with electronic detection methods such as distance sensors, the detection error is smaller, the response is quick, the number of connecting wires is reduced, and the reliability is higher.

[0116] In one embodiment, the 4-position and 8-position test sockets are mutually compatible, and the theoretical length of the first slide slot 25 is calculated by a preset algorithm. The specific steps of the preset algorithm are:

[0117] Step A1, when the test seat 1 is installed, the horizontal inclination angle between the center of the test seat 1 and the center of the first slide slot 25 is calculated according to the following formula:

[0118]

[0119] Wherein, α is the calculated horizontal inclination angle between the center of the test seat 1 and the center of the first slide groove 25 when the test seat 1 is installed, h is the height of the first slide groove 25, a is the height of the rack groove 27, μ is the friction coefficient between the rotating plate 26 and the rack groove 27, and b is the width of the rotating plate 26;

[0120] Step A2: Calculate the theoretical length of the first chute 25 according to the following formula:

[0121]

[0122] Among them, L 0 is the calculated theoretical length of the first slide slot 25, and c is the distance between the center of gravity of the test seat 1 and the adjustment plate 24;

[0123] Step A3: according to the theoretical length L of the first chute 25 obtained in step A2 0 , when the existing length L of the first chute 25 is less than the theoretical length L of the first chute 25 0 When the existing design value meets the use requirements and the test seat 1 does not have the risk of overturning, when the existing length L of the first chute 25 is greater than the theoretical length L of the first chute 25 0 When the existing design value cannot meet the use requirements, the test seat 1 is at risk of overturning, and the length of the first slide groove 25 needs to be adjusted.

[0124] The working principle and beneficial effects of the above technical solution are:

[0125] When the L bracket 2 is in use, if the length of the first slide groove 25 is too long, when the test seat 1 is installed, after adjustment, the center of gravity of the test seat 1 will deviate too much from the center of the first slide groove 25, and there is a risk of overturning. Therefore, during the design, the length of the first slide groove 25 is checked and designed. Based on the support of the first slide groove 25 on the rotating plate 26, the horizontal inclination angle between the center of the test seat 1 and the center of the first slide groove 25 when the test seat 1 is installed is first calculated. Then, based on the geometric relationship, the theoretical length of the first slide groove 25 is calculated. The existing length of the first slide groove 25 is given an initial design value according to the test platform space. By comparing the theoretical length of the first slide groove 25 with the initial design length, the length of the first slide groove 25 is adjusted to meet the use requirements, effectively avoiding the overturning of the test seat 1, providing a basis for the design and verification of the length of the first slide groove 25, and improving the reliability of the L bracket 2 when in use.

[0126] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A 4-bit and 8-bit test socket compatible device, It is characterized in that include: A test seat (1), an L bracket (2) and a fixing seat (3), wherein the test seat (1) is connected to any one of the L bracket (2) and the fixing seat (3), the L bracket (2) is detachably connected to the side end of the test seat (1), and the fixing seat (3) is detachably connected to the top end of the test seat (1); when a 4-station parallel test is performed on a test board, the test seat (1) is connected to the L bracket (2); when an 8-station parallel test is performed on an OS product, the test seat (1) is connected to the fixing seat (3); The L bracket (2) comprises a first bracket plate (21) and a second bracket plate (22), the first bracket plate (21) and the second bracket plate (22) are welded to form an L shape, the first bracket plate (21) is provided with two through holes (23), the side ends of the test seat (1) are correspondingly provided with threaded holes, and the through holes (23) are connected to the threaded holes by bolts; The L bracket (2) further comprises an adjustment plate (24), the adjustment plate (24) being connected to an end of the second bracket plate (22) away from the first bracket plate (21), the adjustment plate (24) and the first bracket plate (21) being arranged perpendicular to the second bracket plate (22), and the adjustment plate (24) being detachably connected to the test platform; A first sliding groove (25) is formed at one end of the adjustment plate (24) close to the second bracket plate (22); a rotating plate (26) is rotatably connected to a side end of the second bracket plate (22); the rotating plate (26) is slidably connected to the first sliding groove (25); and the second bracket plate (22) is slidably connected to the adjustment plate (24); The inner wall of the first slide groove (25) is provided with a rack groove (27), the side end of the rotating plate (26) is evenly connected with a plurality of latching teeth, the rotating plate (26) is meshingly connected with the rack groove (27), one end of the rotating plate (26) away from the second bracket plate (22) is connected to the output shaft of the motor (28), and the motor (28) is fixedly connected to the second bracket plate (22) via a support plate; The surface of the second bracket plate (22) connected to the adjustment plate (24) is provided with scale lines (29), and the scale lines (29) are symmetrically arranged on both sides of the rotating plate (26).

2. A 4-bit and 8-bit test socket compatible device according to claim 1, It is characterized in that The L bracket (2) further comprises an anti-falling device, wherein the anti-falling device comprises: an anti-slip block (41), the anti-slip block (41) being fixedly connected to the top end of the second bracket plate (22); An anti-slip groove (42), wherein the anti-slip groove (42) is provided in the adjusting plate (24), and the anti-slip block (41) is slidably connected in the anti-slip groove (42); A sliding hole (43), wherein the sliding hole (43) is formed at the top end of the anti-slip block (41); A slider (44), the slider (44) being slidably connected to the inner wall of the sliding hole (43), and a spring being connected between the slider (44) and the bottom end of the sliding hole (43); A wedge-shaped groove (45), wherein a plurality of the wedge-shaped grooves (45) are evenly arranged at the side end of the sliding block (44), and the bottom surface of the wedge-shaped groove (45) is configured as an inclined surface that gradually rises from the outside to the inside; Through grooves (46), a plurality of the through grooves (46) are evenly arranged at the side ends of the anti-slip block (41), the through grooves (46) are respectively connected to the wedge-shaped grooves (45), and a baffle (47) is fixedly connected to the inner wall of the through groove (46); a limit block (48), the limit block (48) being slidably connected in the through slot (46), one end of the limit block (48) passing through the through slot (46) and extending into the wedge-shaped slot (45); a second slide groove (49), wherein the second slide groove (49) is formed at the bottom end of the limit block (48), the baffle plate (47) is slidably connected in the second slide groove (49), and a spring is connected between the limit block (48) and the baffle plate (47); Limiting grooves (410), wherein a plurality of the limiting grooves (410) are evenly arranged at the side ends of the anti-slip groove (42), the limiting grooves (410) correspond to the through grooves (46) in position one by one, and the height of the limiting grooves (410) is greater than the height of the limiting block (48); A magnetic block (411), the magnetic block (411) being fixedly connected to the inner bottom end of the sliding block (44); An electromagnetic block (412), the electromagnetic block (412) being fixedly connected to the inner bottom end of the anti-dropping block (41), and the electromagnetic block (412) being repelled from the magnetic block (411) when energized; A top groove (413), the top groove (413) being opened in the adjustment plate (24), and the top groove (413) being connected to the top of the anti-slip groove (42); A push rod (414), the push rod (414) being fixedly connected to the top end of the slider (44), and the two push rods (414) being symmetrically arranged; A rotating rod (415), the rotating rod (415) being hinged to the top end of the push rod (414), the rotating rod (415) extending into the top groove (413), and a coil spring being connected at the hinge between the rotating rod (415) and the push rod (414); A limiting latch tooth (416), wherein the limiting latch tooth (416) is evenly connected to the bottom end of the inner wall of the top groove (413); A fall-off sensing device (417) is fixedly connected to the top of the anti-fall-off block (41), a detection end of the fall-off sensing device (417) is connected to the top of the inner wall of the anti-fall-off groove (42), and the fall-off sensing device (417) is electrically connected to the electromagnetic block (412).

3. A 4-bit and 8-bit test socket compatible device according to claim 2, It is characterized in that The fall-off sensing device (417) comprises: A shell (51), the shell (51) being fixedly connected to the top end of the anti-fall-off block (41); A sliding column (52), the sliding column (52) being fixedly connected to the top end of the inner wall of the housing (51); A sliding seat (53), the sliding seat (53) being sleeved on the outside of the sliding column (52), and the sliding seat (53) being slidably connected to the sliding column (52), and the sliding seat (53) being vertically arranged and extending out of the housing (51); A return spring (54), wherein the return spring (54) is sleeved on the slide post (52), and the return spring (54) is connected between the bottom end of the slide seat (53) and the inner wall of the housing (51); A roller (55), the roller (55) being hinged to the top end of the slide seat (53), the roller (55) rotating at the top end of the inner wall of the anti-slip groove (42), the rotation direction of the roller (55) being consistent with the sliding direction of the anti-slip block (41); A rack (56), the rack (56) being fixedly connected to a side end of the slide seat (53), and the rack (56) being arranged vertically; a gear (57), the gear (57) being rotatably connected to the inner wall of the housing (51), the gear (57) being meshingly connected to the rack (56); A sensing groove (58), the sensing groove (58) being connected to the bottom end of the inner wall of the housing (51), and the sensing groove (58) being arranged below the gear (57); A push plate (59), the push plate (59) being slidably connected to the inner wall of the sensing groove (58); A connecting rod (510), one end of the connecting rod (510) is hinged to the push plate (59), and the other end of the connecting rod (510) is eccentrically hinged to the gear (57); A trigger switch (511), the trigger switch (511) being fixedly connected to the bottom end of the push plate (59), and the trigger switch (511) being electrically connected to the electromagnetic block (412); A trigger seat (512), the trigger seat (512) is fixedly connected to the inner wall of the sensing slot (58), the trigger seat (512) is energized, the trigger seat (512) and the trigger switch (511) are adapted to be arranged, and a spring is connected between the top of the trigger seat (512) and the push plate (59).

Images