Electrical detection jig

Abstract

An electrical detection jig comprises a base, a fixing mechanism and a support, the top of the base is fixedly connected with the bottom of the fixing mechanism, the fixing mechanism is used for fixing an electrical element to be detected, a probe is arranged above the fixing mechanism, the probe is fixedly arranged at the bottom of a probe seat, the probe seat is connected with the telescopic end of an electric push rod through a detachable connecting mechanism, and the electric push rod is connected with the support. The electric push rod can stretch in the vertical direction, the fixed end of the electric push rod is fixedly connected with the support, and the bottom of the support is fixedly connected with the base. The probe seat is provided with a plugging port, a first conductive terminal is fixedly arranged in the plugging port, the first conductive terminal is electrically connected with the probe through a built-in circuit, the first conductive terminal is matched with a second conductive terminal, and the second conductive terminal is fixedly arranged in the plugging head. The second conductive terminal is electrically connected with a control system arranged in the base through a signal line, and the connecting plug is in insertion fit with the insertion port. The design can be suitable for detection work of electrical elements of different models.

Description

Technical Field

[0001] The present invention relates to the field of testing technology, and in particular to an electrical testing fixture, which is specifically suitable for testing electrical components. Background Art

[0002] In the manufacturing process of electrical components, electrical performance testing is a key link to ensure product quality and reliability. Electrical testing fixtures, as electrical performance testing tools, are widely used in pre-shipment testing of various electrical components such as PCB boards, connectors, and electronic modules. However, with the rapid development of electronic technology and the diversification of market demand, the specifications, sizes, and interface forms of electrical components are becoming increasingly diverse, which puts higher requirements on the flexibility and versatility of electrical testing fixtures.

[0003] Although the electrical testing jigs currently on the market have made significant progress in improving testing efficiency and accuracy, they still have obvious limitations in adapting to the testing of electrical components of different models and sizes. For example, most of the existing electrical testing jigs adopt a fixed structure design, and their fixtures, probes and probe holders are often optimized for specific types of electrical components, resulting in the need to replace the entire jig or perform complex adjustments when testing electrical components of different models. This design not only increases the testing cost and prolongs the testing cycle, but also reduces the testing efficiency, making it difficult to meet the needs of modern production lines for fast, flexible and efficient testing. In addition, due to the differences in the interface position, spacing and electrical characteristics of electrical components, existing jigs often face problems such as complex operation and difficulty in ensuring positioning accuracy when replacing probes and probe holders of different components. This not only increases the labor intensity of operators, but may also cause detection errors due to inaccurate positioning, affecting the final quality of the product. Summary of the invention

[0004] The purpose of the present invention is to overcome the problem that the fixtures, probes and probe seats of the existing electrical testing fixtures in the prior art are often optimized for specific types of electrical components and are difficult to adapt to different types of electrical components. An electrical testing fixture with replaceable probes and probe seats is provided to adapt to different types of electrical component testing operations.

[0005] To achieve the above objectives, the technical solution of the present invention is: An electrical testing fixture, the electrical testing fixture comprising: a base, a fixing mechanism, and a bracket, the top of the base is fixedly connected to the bottom of the fixing mechanism, the fixing mechanism is used to fix the electrical component to be tested, a probe is arranged above the fixing mechanism, the probe is fixedly arranged at the bottom of the probe seat, the probe seat is connected to the telescopic end of an electric push rod through a detachable connecting mechanism, the electric push rod can be telescopic in the vertical direction, the fixed end of the electric push rod is fixedly connected to the bracket, and the bottom of the bracket is fixedly connected to the base 1; The probe seat is provided with a plug interface, and a first conductive terminal is fixedly provided inside the plug interface. The first conductive terminal is electrically connected to the probe through a built-in circuit, and the first conductive terminal cooperates with a second conductive terminal, and the second conductive terminal is fixedly provided in the plug connector. The plug connector is inserted and matched with the plug interface, and the second conductive terminal is electrically connected to a control system provided inside the base through a signal circuit.

[0006] The fixing mechanism comprises a fixing platform and a double-headed motor, wherein the double-headed motor is fixedly arranged inside the fixing platform, and two output ends of the double-headed motor are respectively connected to two transmission components arranged opposite to each other; Each of the transmission components includes: a gear set, a transmission screw, a first sliding block, and a clamp. The bottom of the clamp is connected to the top of the first sliding block. The bottom of the first sliding block passes through a guide groove opened on the top of the fixed platform and is threadedly engaged with the transmission screw. The first sliding block and the guide groove are slidably engaged in the length direction of the fixed platform. The transmission screw is connected to the output end of the double-headed motor through the gear set.

[0007] The gear set includes a driving gear and at least one driven gear, the driving gear is meshed with the driven gear, the middle part of the driving gear is fixedly connected to the output shaft of the double-headed motor, and the middle part of the driven gear is fixedly connected to the transmission screw.

[0008] The clamping plate includes a clamping plate body and two groups of clamping components, the two groups of clamping components are symmetrically arranged at the two ends of the clamping plate body, the clamping components include: a clamping block, a sliding plate, a scissor-type telescopic bracket, and a second sliding block. The clamping block is located between the two clamping plate bodies, and the end of the clamping block is fixedly connected to the sliding plate. The sliding plate is located in a first sliding groove opened at the end of the clamping plate body, and the sliding plate and the first sliding groove are slidably matched in the width direction of the fixed platform. The sliding plate is connected to one end of the scissor-type telescopic bracket, and the scissor-type telescopic bracket can be extended and retracted along the width direction of the fixed platform. The two scissor arms at the other end of the scissor-type telescopic bracket are respectively connected to the splint body and the second sliding block, the second sliding block is sleeved on the sliding guide rod, and the second sliding block and the sliding guide rod are slidably matched in the length direction of the fixed platform, the sliding guide rod is fixedly arranged in the second sliding groove, the second sliding groove is opened at the bottom of the splint body, and a first spring is arranged in the second sliding groove, one end of the first spring is tightly matched with the inner wall of the second sliding groove, and the other end of the first spring is tightly matched with the outer wall of the second sliding block, and the bottom of the second sliding block is fixedly connected to the top of the first sliding block.

[0009] The first spring is sleeved on the sliding guide rod.

[0010] The detachable connecting mechanism includes a connecting plate, a knob, a threaded column, and a pulling plate, a pulling rod, and a plug-in plate arranged in a third slide groove. The top of the connecting plate is connected to the telescopic end of the electric push rod, and a knob is arranged above the connecting plate. The bottom of the knob is connected to the top of the threaded column, and the bottom of the threaded column is threadedly matched with the threaded hole on the pulling plate located in the third slide groove. The third slide groove is located inside the connecting plate, and the pulling plate and the third slide groove are slidably matched in the vertical direction. The two sides of the bottom of the pulling plate are respectively hinged to the top of a pulling rod, and the bottom end of each pulling rod is hinged to the outer end of a plug-in plate. The two plug-in plates are slidably matched with the third slide groove in the horizontal direction. The two plug-in plates are arranged opposite to each other, and the inner ends of the two plug-in plates are respectively inserted into and matched with two slots opened on both sides of the plug-in block. The connecting plug-in block is fixedly arranged on the top of the probe seat, and the connecting plug-in block is inserted into and matched with the socket opened at the bottom of the connecting plate, and the top of the socket is connected to the third slide groove.

[0011] A sliding baffle is provided at the plug interface, and the sliding baffle can slide in the vertical direction. A connecting hole is opened on the sliding baffle, and the connecting hole is inserted and matched with the plug connector.

[0012] A first rack is fixedly provided on the side of the sliding baffle, the first rack is meshed with the first transmission gear, the middle part of the first transmission gear is fixedly connected to one end close to the transmission rod, the other end of the transmission rod is fixedly connected to the middle part of the second transmission gear, the second transmission gear is meshed with the second rack, the second rack is fixedly connected to the sliding column, the sliding column and the second spring are arranged in the fourth sliding groove from the inside to the outside, the fourth sliding groove is opened on the inner side wall of the plug interface, the inner wall of the fourth sliding groove is tightly fitted with one end of the second spring, the other end of the second spring is tightly fitted with the inner end of the sliding column, the sliding column is slidably fitted with the fourth sliding groove, the outer end surface of the sliding column is a spherical crown surface, and the sliding column is located between the sliding baffle and the opening of the plug interface.

[0013] A receiving groove is provided in the middle of the sliding column, and the second transmission gear and the second rack are both located in the receiving groove in the middle of the sliding column.

[0014] A fifth slide groove is provided on the inner wall of the connecting hole, and a third spring, a T-shaped plate and a card plate are provided in the fifth slide groove from top to bottom. The top end of the third spring is pressed and fitted with the inner wall of the fifth slide groove, and the bottom end of the third spring is pressed and fitted with the top of the cross plate of the T-shaped plate. The bottom of the cross plate of the T-shaped plate is limitedly fitted with a card block fixedly provided on the inner side wall of the fifth slide groove, the bottom of the T-shaped plate is fixedly connected to the top of the card plate, and the bottom of the card plate is inserted and fitted with the card plate groove provided on the top of the plug connector.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In an electrical testing fixture of the present invention, the top of the base is fixedly connected to the bottom of the fixing mechanism, the fixing mechanism is used to fix the electrical component to be tested, a probe seat with a detection probe is arranged above the fixing mechanism, and the probe seat is connected to the telescopic end of the electric push rod through a detachable connecting mechanism, the fixed end of the electric push rod is fixedly connected to the top of the bracket, the bottom of the bracket is fixedly connected to the base, and an insertion interface is arranged on the probe seat, a first conductive terminal is fixedly arranged inside the insertion interface, the first conductive terminal is electrically connected to the probe through a built-in circuit, the first conductive terminal cooperates with the second conductive terminal, and the second conductive terminal is connected to the device through a signal circuit. The control system placed inside the base is electrically connected, and the second conductive terminal is fixedly arranged in the plug connector. The plug connector and the plug interface are inserted and matched. When different electrical components need to be tested, the electrical components are fixed on the fixing mechanism, and through the detachable connection mechanism, the probe seat and the probe at the bottom of the electric push rod can be replaced to match the probe seat and the probe with the electrical component to be tested; at the same time, through the plug interface on the probe seat and the plug connector, different probe seats can be connected to the signal of the control system arranged inside the base to realize the detection of different electrical components. The electrical detection fixture can realize the testing of electrical components of different models and has wide adaptability. Therefore, in this design, the probe seat is connected to the bracket through a detachable connection mechanism, and at the same time, the plug interface on the probe seat and the plug connector cooperate with each other, so that different probe seats can be connected to the signal of the control system arranged inside the base to realize the replacement and connection of probe seats of different models. The electrical detection fixture can realize the testing of electrical components of different models and has wide applicability.

[0016] 2. The clamping plate in an electrical testing fixture of the present invention comprises a clamping plate body and two groups of clamping assemblies, the two groups of clamping assemblies are symmetrically arranged at the two ends of the clamping plate body, wherein the clamping assembly comprises a clamping block, a sliding plate, a scissor-type telescopic bracket, and a second sliding block, the clamping block is located between the two clamping plate bodies, the end of the clamping block is fixedly connected to the sliding plate, the sliding plate is located in a first sliding groove opened at the end of the clamping plate body, the sliding plate and the first sliding groove are slidably matched along the fixed width direction, the sliding plate is connected to one end of the scissor-type telescopic bracket, the scissor-type telescopic bracket can be telescoped along the width direction of the fixed platform, and the two scissor arms at the other end of the scissor-type telescopic bracket are respectively connected to the clamping plate body and the second sliding block, the second sliding block is sleeved on the sliding guide rod and slidably matched with the sliding guide rod, the sliding guide rod is arranged along the length direction of the fixed platform, the sliding guide rod is fixedly arranged in the second sliding groove, the second sliding groove is opened at the bottom of the clamping plate body, a first spring is arranged in the second sliding groove, the outer end of the first spring is pressed tightly with the inner wall of the second sliding groove, and the When the two first sliding blocks are driven by the double-headed motor and the transmission screw drive the two first sliding blocks to move toward the middle position of the fixing mechanism, the two first sliding blocks are close to each other, and the two clamping plate bodies are close to each other. When the clamping plate body contacts the electrical component to be tested placed on the top of the fixing mechanism and stops moving, the second sliding block continues to move to the middle position of the fixing mechanism. At this time, the first spring is squeezed and shortened by the second sliding block and the inner wall of the second sliding groove, and the second sliding block slides relative to the second sliding groove. At this time, the two scissor arms of the scissor-type telescopic bracket are opened, and the scissor-type telescopic bracket is retracted, and the sliding plate and the clamping block all move toward the middle position of the clamping plate body. At this time, the two clamping blocks at both ends of the clamping plate body are close to each other, and the electrical component to be tested placed on the top of the fixing mechanism is further clamped to prevent the electrical component to be tested from sliding sideways, and the fixing and positioning effects are good. At the same time, the clamping plate in the above design can adapt to components to be tested of different sizes and has wide applicability. Therefore, the present design symmetrically arranges two clamping plates above the fixed platform, and each clamping plate includes a clamping plate body and two sets of clamping components symmetrically arranged at both ends of the clamping plate body, which have firm clamping, good fixing and positioning effects; at the same time, the present design can adapt to components to be tested of different sizes and has wide applicability.

[0017] 3. In an electrical testing fixture of the present invention, a sliding baffle is provided at the plug interface, and the sliding baffle can slide in the vertical direction. A connecting hole is provided on the sliding baffle, and the connecting hole is inserted and matched with the plug connector. When the plug connector is inserted at the plug interface, the sliding baffle slides to stagger the opening positions of the connecting hole and the plug interface, thereby preventing dust from entering the plug interface and preventing dust from affecting the connection between the plug interface and the plug connector. Therefore, in this design, a sliding baffle is provided at the plug interface to prevent dust from entering the plug interface.

[0018] 4. In an electrical testing fixture of the present invention, a first rack is fixedly arranged on the side of a sliding baffle, the first rack is meshed with the first transmission gear, the middle part of the first transmission gear is fixedly connected to one end of a transmission rod, the other end of the transmission rod is fixedly connected to the middle part of a second transmission gear, the second transmission gear is meshed with the second rack, the second rack is fixedly connected to a sliding column, the sliding column and a second spring are arranged in a fourth slide groove from the inside to the outside, the fourth slide groove is opened on the inner side wall of the plug interface, the inner wall of the fourth slide groove is tightly fitted with one end of the second spring, the other end of the second spring is tightly fitted with the inner end of the sliding column, the outer end surface of the sliding column is a spherical crown surface, when the plug connector is inserted into the plug interface, the plug connector squeezes the spherical crown surface, so that the sliding column and the second spring are arranged in a fourth slide groove from the inside to the outside, the fourth slide groove is opened on the inner side wall of the plug interface, the inner wall of the fourth slide groove is tightly fitted with one end of the second spring, the other end of the second spring is tightly fitted with the inner end of the sliding column, the outer end surface of the sliding column is a spherical crown surface, when the plug connector is inserted into the plug interface, the plug connector squeezes the spherical crown surface, so that the sliding column The movable column retracts into the fourth slide slot, at which time the second rack fixed on the sliding column moves, driving the second transmission gear to rotate, and the second transmission gear drives the first transmission gear to rotate through the transmission rod, thereby driving the first rack to move, so that the sliding baffle slides in the vertical direction, and then the connecting hole on the sliding baffle is aligned with the plug interface, so that the plug connector can be smoothly inserted into the plug interface, so that the sliding baffle does not hinder the insertion of the plug connector when the plug connector is inserted into the plug interface, and when there is no plug connector inserted in the plug interface, the sliding baffle slides under the elastic force of the second spring so that the opening position of the connecting hole and the plug interface is staggered, and the sliding column automatically identifies whether the plug connector is inserted into the plug interface, thereby realizing automatic control of the sliding baffle, which is convenient for plugging and unplugging the plug connector. Therefore, in this design, the sliding column automatically identifies whether the plug connector is inserted into the plug interface, thereby realizing automatic control of the sliding baffle, which is convenient for plugging and unplugging the plug connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a structural diagram of the fixing mechanism.

[0021] Figure 3 It is a schematic diagram of the structure of the splint.

[0022] Figure 4 It is a structural schematic diagram of a detachable connecting mechanism.

[0023] Figure 5 It is a schematic diagram of the insertion and matching of the plug connector and the plug interface.

[0024] Figure 6 It is a structural schematic diagram of the sliding baffle.

[0025] In the figure: base 1, fixing mechanism 2, fixing table 21, double-headed motor 211, gear set 212, driving gear 2121, driven gear 2122, transmission screw 213, first sliding block 214, guide groove 215, clamping plate 22, clamping plate body 221, clamping block 222, sliding plate 223, scissor-type telescopic bracket 224, second sliding block 225, first slide groove 226, sliding guide rod 227, second slide groove 228, first spring 229, bracket 3, probe seat 4, probe 41, plug interface 42, fourth slide groove 421, first Second spring 422, sliding column 423, spherical crown surface 424, second transmission gear 425, second rack 426, connector block 43, slot 44, sliding baffle 45, connecting hole 451, fifth slide groove 452, third spring 453, T-plate 454, clamping plate 455, first rack 46, first transmission gear 47, transmission rod 48, electric push rod 5, detachable connecting mechanism 6, connecting plate 61, knob 62, threaded column 63, pulling plate 64, pulling rod 65, plug-in plate 66, third slide groove 67, signal line 7, plug connector 71. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] See also Figures 1 to 6 , an electrical testing fixture, the electrical testing fixture includes: a base 1, a fixing mechanism 2, and a bracket 3, the top of the base 1 is fixedly connected to the bottom of the fixing mechanism 2, the fixing mechanism 2 is used to fix the electrical component to be tested, a probe 41 is arranged above the fixing mechanism 2, the probe 41 is fixedly arranged at the bottom of the probe seat 4, the probe seat 4 is connected to the telescopic end of the electric push rod 5 through a detachable connecting mechanism 6, the electric push rod 5 can be telescopic in the vertical direction, the fixed end of the electric push rod 5 is fixedly connected to the top of the bracket 3, and the bottom of the bracket 3 is fixedly connected to the base 1.

[0028] Specifically, Figure 1 As shown, the fixing mechanism 2 is used to fix the electrical component to be tested. When the electrical component to be tested needs to be tested, the connecting mechanism 6 and the probe seat 4 are controlled to descend by the electric push rod 5 so that the probe on the probe seat 4 touches the electrical component to be tested, and the electrical component to be tested can be tested.

[0029] The probe seat 4 is provided with a plug interface 42, and a first conductive terminal is fixedly provided inside the plug interface 42. The first conductive terminal is electrically connected to the probe 41 through a built-in circuit, and the first conductive terminal cooperates with the second conductive terminal. The second conductive terminal is electrically connected to a control system arranged inside the base 1 through a signal circuit 7. The second conductive terminal is fixedly provided in a plug connector 71, and the plug connector 71 is inserted and cooperated with the plug interface 42.

[0030] In this embodiment, the probe seat 4 is electrically connected to the control system disposed inside the base 1 through the plug interface 42, the plug connector 71, and the signal line 7. The plug interface 42 and the plug connector 71 are pluggable, which facilitates the replacement of different probe seats 4 for detection according to the model and requirements of the electrical component to be tested. Figure 1 As shown, a control console is also provided on the outside of the base 1, and control buttons are provided on the console. The control buttons are used to respond to the operation of the operator to send control instructions to the control system inside the base 1 to perform the detection task. According to the control instructions, the control system controls the extension and retraction of the electric push rod 5 and the output / receive of electrical signals by the probe 41.

[0031] The fixing mechanism 2 includes a fixing platform 21 and a double-headed motor 211. The double-headed motor 211 is fixedly arranged inside the fixing platform 21. The two ends of the output shaft of the double-headed motor 211 are respectively connected to two transmission components arranged opposite to each other. A double-headed motor refers to a motor with output shafts at both ends. The double-headed motor can drive two independent loads at the same time.

[0032] Each of the transmission components includes: a gear set 212, a transmission screw 213, a first sliding block 214, and a clamp 22. The clamp 22 is arranged above the fixed platform 21, and the bottom of the clamp 22 is connected to the top of the first sliding block 214. The bottom of the first sliding block 214 passes through a guide groove 215 opened on the top of the fixed platform 21 and is threadedly engaged with the transmission screw 213. The first sliding block 214 and the guide groove 215 are slidably engaged along the length direction of the fixed platform 21. The transmission screw 213 is connected to the output shaft of the double-headed motor 211 through the gear set 212.

[0033] In this embodiment, Figure 2 is a structural diagram of the fixed mechanism, such as Figure 2 As shown, each of the transmission components includes a clamping plate 22, two transmission screws 213, and two first sliding blocks 214. The two first sliding blocks 214 are connected to the bottom of the same clamping plate 22. The transmission screws 213 in the two transmission components can be controlled to rotate through the double-headed motor 211, so that the first sliding blocks 214 threadedly matched with the transmission screws 213 slide along the guide groove 215, and finally drive the clamping plate 22 to move. The two clamping plates 22 arranged relatively to each other in the two transmission components can be driven by the double-headed motor 211, the transmission screws 213, and the first sliding blocks 214 to clamp the electrical components to be tested.

[0034] Specifically, the gear set 212 includes a driving gear 2121 and at least one driven gear 2122, the driving gear 2121 is meshed with the driven gear 2122, the middle portion of the driving gear 2121 is fixedly connected to the output shaft of the double-headed motor 211, and the middle portion of the driven gear 2122 is fixedly connected to the transmission screw 213.

[0035] The clamping plate 22 includes a clamping plate body 221 and two groups of clamping components. The clamping plate body 221 is a long flat plate structure. The clamping plate body 221 is arranged along the width direction of the fixed platform 21. The two groups of clamping components are symmetrically arranged at both ends of the clamping plate body 221. Each group of clamping components includes: a clamping block 222, a sliding plate 223, a scissor-type telescopic bracket 224, and a second sliding block 225. The clamping block 222 is located between the two clamping plate bodies 221 of the two sets of clamping assemblies, and the end of the clamping block 222 is fixedly connected to the sliding plate 223. The sliding plate 223 is located in a first sliding groove 226 opened at the end of the clamping plate body 221. The sliding plate 223 and the first sliding groove 226 slide in cooperation in the width direction of the fixed platform 21. The sliding plate 223 is connected to one end of a scissor-type telescopic bracket 224. The scissor-type telescopic bracket 224 can be telescoped in the width direction of the fixed platform 21. The two scissor arms at the other end of the scissor-type telescopic bracket 224 are respectively connected to the clamping plate body 221 and the second sliding block 225. The second sliding block 225 is sleeved on the sliding guide rod 227, and the second sliding block 225 and the sliding guide rod 227 are slidably matched in the length direction of the fixed platform 21. The sliding guide rod 227 is fixedly set in the second sliding groove 228, and the second sliding groove 228 is opened at the bottom of the splint body 221. A first spring 229 is set in the second sliding groove 228, and one end of the first spring 229 is pressed and matched with the inner wall of the second sliding groove 228, and the other end of the first spring 229 is pressed and matched with the outer wall of the second sliding block 225. The bottom of the second sliding block 225 is fixedly connected to the top of the first sliding block 214.

[0036] The first spring 229 is sleeved on the sliding guide rod 227 .

[0037] In this embodiment, Figure 3 is a schematic diagram of the structure of the splint, such as Figure 3 As shown, the first spring 229 is located on the side of the second sliding block 225 close to the double-headed motor 211; when the first spring 229 is extended, the scissor-type telescopic bracket 224 is expanded; when the first spring 229 is compressed, the scissor-type telescopic bracket 224 is retracted. The scissor-type telescopic bracket 224 includes at least one scissor structure, and each scissor structure includes two scissor arms that are hinged to each other in the middle.

[0038] In the process of the two clamping plates 22 approaching each other and tightening the electrical component to be tested, when the clamping plate body 221 contacts the electrical component to be tested and stops sliding, the first sliding block 214 drives the second sliding block 225 to slide along the sliding guide rod 227. At this time, the second sliding block 225 slides relative to the clamping plate body 221, driving the angle between the scissor arms of the scissor-type telescopic bracket 224 to change, and the scissor-type telescopic bracket 224 shrinks. At this time, the clamping block 222 slides along the width direction of the fixed platform 21, and the two clamping blocks 222 connected to the same clamping plate 22 move closer to each other to clamp the electrical component to be tested. At this time, the two clamping plate bodies 221 and the four clamping blocks 222 clamp and fix the electrical component to be tested in four directions. This clamping method can adapt to electrical components of different models and sizes, and has a good fixing and positioning effect on electrical components of different models and sizes.

[0039] The detachable connection mechanism 6 includes: a connecting plate 61, a knob 62, a threaded column 63, and a pulling plate 64, a pulling rod 65, and a plug-in plate 66 arranged in a third slide groove 67. The top of the connecting plate 61 is connected to the telescopic end of the electric push rod 5. A knob 62 is arranged above the connecting plate 61. The bottom of the knob 62 is connected to the top of the threaded column 63. The bottom of the threaded column 63 is threadedly matched with a threaded hole on the pulling plate 64 located in the third slide groove 67. The pulling plate 64 and the third slide groove 67 are slidably matched in the vertical direction. The third slide groove 67 is located in the connecting plate 61. The two sides of the bottom of the pulling plate 64 are respectively hinged to the top of a pulling rod 65, and the bottom end of each pulling rod 65 is hinged to the outer end of a plug-in plate 66. The two plug-in plates 66 slide and cooperate with the third slide groove 67 in the horizontal direction. The two plug-in plates 66 are arranged opposite to each other, and the inner ends of the two plug-in plates 66 are respectively inserted and cooperated with the two slots 44 opened on both sides of the plug-in block 43. The connecting plug-in block 43 is fixedly set on the top of the probe seat 4, and the connecting plug-in block 43 is inserted and cooperated with the socket 66 opened at the bottom of the connecting plate 61, and the top of the socket 66 is connected to the third slide groove 67.

[0040] In this embodiment, Figure 4 is a schematic diagram of the structure of the detachable connection mechanism, such as Figure 4As shown, when replacing a different probe seat 4, the knob 62 is rotated to rotate the threaded column 63 at the bottom of the rotating knob 62, so that the pulling plate 64 threadedly matched with the threaded column 63 slides up and down along the third slide groove 67. At this time, the two plug-in boards 66 slide horizontally in the third slide groove 67 under the drive of the pulling rod 65, and the two plug-in boards 66 approach or separate from each other. When the two plug-in boards 66 approach each other, the inner ends of the two plug-in boards 66 are respectively inserted into the two slots 44 on both sides of the plug-in block 43, thereby fixing the probe seat 4 fixedly connected to the bottom of the plug-in block 43; when the two plug-in boards 66 are separated from each other, the two plug-in boards 66 slide out of the two slots 44 on both sides of the plug-in block 43, and the plug-in block 43 is no longer restricted by the plug-in boards 66. At this time, the plug-in block 43 can be pulled out from the jack 66 to realize the disassembly of the probe seat 4.

[0041] The plug port 42 is provided with a sliding baffle 45, which can slide in the vertical direction, and has a connecting hole 451, which is inserted and matched with the plug connector 71. When the plug connector 71 is not inserted into the plug port 42, the sliding baffle 45 plays a dustproof role.

[0042] A first rack 46 is fixedly provided on the side of the sliding baffle 45, and the first rack 46 is meshed with the first transmission gear 47. The middle part of the first transmission gear 47 is fixedly connected to one end of the transmission rod 48, and the other end of the transmission rod 48 is fixedly connected to the middle part of the second transmission gear 425. The second transmission gear 425 is meshed with the second rack 426, and the second rack 426 is fixedly connected to the sliding column 423. The sliding column 423 and the second spring 422 are sequentially arranged in the fourth sliding groove 421 from the inside to the outside. The fourth sliding groove 421 is opened on the inner side wall of the plug interface 42, and the inner wall of the fourth sliding groove 421 is tightly fitted with one end of the second spring 422, and the other end of the second spring 422 is tightly fitted with the inner end of the sliding column 423. The outer end surface of the sliding column 423 is a spherical crown surface 424, and the sliding column 423 is located between the sliding baffle 45 and the opening of the plug interface 42.

[0043] A receiving groove is formed in the middle of the sliding column 423 , and the second transmission gear 425 and the second rack 426 are both located in the receiving groove in the middle of the sliding column 423 .

[0044] In this embodiment, Figure 5 It is a schematic diagram of the insertion and matching of the plug connector and the plug interface, such as Figure 5 As shown, when the sliding post 423 is located in the fourth sliding groove 421 , the communicating hole 451 is aligned with the plug-in port 42 .

[0045] When the plug connector 71 is inserted into the plug interface 42, the outer wall of the plug connector 71 squeezes the outer end surface of the sliding column 423, and the sliding column 423 retracts into the fourth sliding groove 421. At this time, the connecting hole 451 is aligned with the plug interface 42, and the plug connector 71 can continue to be inserted into the inside of the plug interface 42 to achieve signal connection between the probe 41 and the control system set inside the base 1. When the plug connector 71 is withdrawn from the plug interface 42, under the action of the second spring 422, the sliding column 423 slides outward along the fourth sliding groove 421, and the outer end of the sliding column 423 extends out of the fourth sliding groove 421 and enters the plug interface 42. While the sliding column 423 slides, the second transmission gear 425 is driven to rotate through the second rack 426, thereby causing the first transmission gear 47 to rotate accordingly, and the sliding baffle 45 is driven to slide in the vertical direction through the first rack 46, and the connecting hole 451 is no longer aligned with the plug interface 42, and the inside of the plug interface 42 is blocked by the sliding baffle 45.

[0046] A fifth slide groove 452 is provided on the inner wall of the connecting hole 451, and a third spring 453, a T-shaped plate 454, and a clamping plate 455 are provided in the fifth slide groove 452 in sequence from top to bottom. The top end of the third spring 453 is pressed and fitted with the inner wall of the fifth slide groove 452, and the bottom end of the third spring 453 is pressed and fitted with the top of the transverse plate of the T-shaped plate 454. The bottom of the transverse plate of the T-shaped plate 454 is limitedly fitted with a clamping block 456 fixedly provided on the inner side wall of the fifth slide groove 452, and the bottom of the T-shaped plate 454 is fixedly connected to the top of the clamping plate 455, and the bottom of the clamping plate 455 is inserted and fitted with the clamping plate groove provided on the top of the plug connector 71.

[0047] In this embodiment, Figure 6 is a schematic diagram of the structure of the sliding baffle, such as Figure 6 As shown, when the plug connector 71 is inserted into the plug interface 4 and passes through the connecting hole 451 opened on the sliding baffle 45, the outer wall of the plug connector 71 squeezes the card plate 455, causing the card plate 455 to retract into the fifth sliding groove 452, and then the plug connector 71 continues to move into the plug interface 42 until the card groove at the top of the plug connector 71 moves to directly below the card plate 455. At this time, under the action of the third spring 453, the bottom of the card plate 455 is inserted into the card plate groove opened at the top of the plug connector 71, which has the effect of pressing and fixing the plug connector 71.

[0048] In summary, based on the obvious deficiencies of existing electrical testing jigs in adapting to the diversity of electrical components and improving testing flexibility, the present invention provides a new electrical testing jig that can be easily adjusted and quickly adapted to the testing needs of electrical components of different models and sizes, so as to improve testing efficiency, reduce testing costs, and ensure the accuracy and reliability of test results.

[0049] The present invention also provides a method for using an electrical testing fixture, the method for using the electrical testing fixture comprising the following steps: Step 1: Fixing: Place the electrical component to be tested on top of the fixing platform 21 so that the electrical component to be tested is located between the two clamping plates 22; The double-headed motor 211 is started, and the output shaft of the double-headed motor 211 drives the two transmission screws 213 to rotate through the gear set 212. The two transmission screws 213 respectively drive the two first sliding blocks 214 to slide along the guide groove 215, thereby making the two clamping plates 22 respectively connected to the two first sliding blocks 214 approach each other to fix the electrical component to be tested; Step 2: Install the probe holder: Insert the connecting plug 43 fixed on the top of the probe seat 4 into the third slide groove 67 through the plug hole 66 at the bottom of the connecting plate 61; The knob 62 is rotated to rotate the threaded column 63 at the bottom of the knob 62, so that the pull plate 64 threadably matched with the threaded column 63 slides upward along the third slide groove 67. At this time, the two plug-in plates 66 slide horizontally in the third slide groove 67 under the drive of the pull rod 65, and the two plug-in plates 66 move closer to each other. The inner ends of the two plug-in plates 66 are respectively inserted into the two slots 44 provided on both sides of the plug-in block 43. Step 3: Connection: Insert the plug connector 71 into the plug port 42 provided on the probe base 4; Step 4: Detection: The electric push rod 5 is started, so that the electric push rod 5 drives the detachable connection mechanism 6 and the probe seat 4 to descend, so that the probe 41 at the bottom of the probe seat 4 contacts the electrical component to be tested, and the electrical component to be tested is tested.

[0050] Embodiment 1: An electrical detection fixture, the electrical detection fixture comprises: a base 1, a fixing mechanism 2, and a bracket 3, the top of the base 1 is fixedly connected to the bottom of the fixing mechanism 2, the fixing mechanism 2 is used to fix the electrical component to be detected, a probe 41 is arranged above the fixing mechanism 2, the probe 41 is fixedly arranged at the bottom of the probe seat 4, the probe seat 4 is connected to the telescopic end of the electric push rod 5 through a detachable connecting mechanism 6, the electric push rod 5 can be telescopic in the vertical direction, the fixed end of the electric push rod 5 is fixedly connected to the bracket 3, and the bottom of the bracket 3 is fixedly connected to the base 1; the probe seat 4 is provided with a A plug interface 42 is provided, a first conductive terminal is fixedly provided inside the plug interface 42, the first conductive terminal is electrically connected to the probe 41 through a built-in circuit, the first conductive terminal cooperates with the second conductive terminal, the second conductive terminal is fixedly provided in the plug connector 71, the plug connector 71 is inserted and matched with the plug interface 42, and the second conductive terminal is electrically connected to the control system provided inside the base 1 through the signal line 7; the fixing mechanism 2 includes a fixing platform 21 and a double-headed motor 211, the double-headed motor 211 is fixedly provided inside the fixing platform 21, and the two output ends of the double-headed motor 211 are respectively The first and second transmission components are connected to two oppositely arranged transmission components respectively; each transmission component includes: a gear set 212, a transmission screw 213, a first sliding block 214, and a clamping plate 22; the bottom of the clamping plate 22 is connected to the top of the first sliding block 214; the bottom of the first sliding block 214 passes through a guide groove 215 opened on the top of the fixed platform 21 and then is threadedly matched with the transmission screw 213; the first sliding block 214 and the guide groove 215 are slidably matched in the length direction of the fixed platform 21; the transmission screw 213 is connected to the output end of the double-headed motor 211 through the gear set 212; the gear The group 212 includes a driving gear 2121 and at least one driven gear 2122, the driving gear 2121 meshes with the driven gear 2122, the middle part of the driving gear 2121 is fixedly connected to the output shaft of the double-headed motor 211, and the middle part of the driven gear 2122 is fixedly connected to the transmission screw 213; the clamping plate 22 includes a clamping plate body 221 and two groups of clamping components, the two groups of clamping components are symmetrically arranged at both ends of the clamping plate body 221, and each group of the clamping components includes: a clamping block 222, a sliding plate 223, a scissor-type telescopic bracket 224, and a second sliding block 225;The clamping block 222 is located between the two clamping plate bodies 221, and the end of the clamping block 222 is fixedly connected to the sliding plate 223. The sliding plate 223 is located in a first sliding groove 226 opened at the end of the clamping plate body 221. The sliding plate 223 and the first sliding groove 226 slide and cooperate in the width direction of the fixed platform 21. The sliding plate 223 is connected to one end of a scissor-type telescopic bracket 224. The scissor-type telescopic bracket 224 can be telescoped in the width direction of the fixed platform 21. The two scissor arms at the other end of the scissor-type telescopic bracket 224 are respectively connected to the clamping plate body 221 and the second sliding block 225. The second sliding block 225 is sleeved The second sliding block 225 is arranged on the sliding guide rod 227, and the sliding guide rod 227 is slidably matched in the length direction of the fixed platform 21. The sliding guide rod 227 is fixedly arranged in the second slide groove 228. The second slide groove 228 is opened at the bottom of the clamping plate body 221. A first spring 229 is arranged in the second slide groove 228. One end of the first spring 229 is pressed and matched with the inner wall of the second slide groove 228, and the other end of the first spring 229 is pressed and matched with the outer wall of the second sliding block 225. The bottom of the second sliding block 225 is fixedly connected with the top of the first sliding block 214; the first spring 229 is sleeved on the sliding guide rod 227. ;

[0051] Embodiment 2: Embodiment 2 is substantially the same as Embodiment 1, except that: The detachable connection mechanism 6 includes: a connecting plate 61, a knob 62, a threaded column 63, and a pulling plate 64, a pulling rod 65, and a plug-in plate 66 arranged in a third slide groove 67. The top of the connecting plate 61 is connected to the telescopic end of the electric push rod 5. A knob 62 is arranged above the connecting plate 61. The bottom of the knob 62 is connected to the top of the threaded column 63. The bottom of the threaded column 63 is threadedly matched with a threaded hole on the pulling plate 64 located in the third slide groove 67. The third slide groove 67 is located inside the connecting plate 61. The pulling plate 64 and the third slide groove 67 slide in the vertical direction. The two sides of the bottom of the pulling plate 64 are respectively hinged to the top of a pulling rod 65, and the bottom end of each pulling rod 65 is hinged to the outer end of a plug-in plate 66. The two plug-in plates 66 slide and cooperate with the third slide groove 67 in the horizontal direction. The two plug-in plates 66 are arranged opposite to each other, and the inner ends of the two plug-in plates 66 are respectively inserted and cooperated with the two slots 44 opened on both sides of the plug-in block 43. The connecting plug-in block 43 is fixedly set on the top of the probe seat 4, and the connecting plug-in block 43 is inserted and cooperated with the socket 66 opened at the bottom of the connecting plate 61, and the top of the socket 66 is connected to the third slide groove 67.

[0052] Embodiment 3: Embodiment 3 is substantially the same as Embodiment 2, except that: The plug interface 42 is provided with a sliding baffle 45, which can slide in the vertical direction. The sliding baffle 45 is provided with a connecting hole 451, and the connecting hole 451 is inserted and matched with the plug connector 71; the side of the sliding baffle 45 is fixedly provided with a first rack 46, the first rack 46 is meshed with the first transmission gear 47, the middle part of the first transmission gear 47 is fixedly connected to one end of the transmission rod 48, and the other end of the transmission rod 48 is fixedly connected to the middle part of the second transmission gear 425, the second transmission gear 425 is meshed with the second rack 426, and the The second rack 426 is fixedly connected to the sliding column 423, and the sliding column 423 and the second spring 422 are arranged in the fourth sliding groove 421 from the inside to the outside. The fourth sliding groove 421 is opened on the inner side wall of the plug interface 42, and the inner wall of the fourth sliding groove 421 is tightly fitted with one end of the second spring 422, and the other end of the second spring 422 is tightly fitted with the inner end of the sliding column 423. The sliding column 423 is slidably fitted with the fourth sliding groove 421, and the outer end face of the sliding column 423 is a spherical crown surface 424. The sliding column 423 is located between the sliding baffle 45 and the opening of the plug interface 42. A accommodating groove is provided in the middle of the sliding column 423, and the second transmission gear 425 and the second rack 426 are both located in the accommodating groove in the middle of the sliding column 423; a fifth sliding groove 452 is provided on the inner wall of the connecting hole 451, and a third spring 453, a T-shaped plate 454, and a clamping plate 455 are arranged from top to bottom in the fifth sliding groove 452, and the top end of the third spring 453 is tightly fitted with the inner wall of the fifth sliding groove 452, and the bottom end of the third spring 453 is tightly fitted with the top of the cross plate of the T-shaped plate 454, and the bottom of the cross plate of the T-shaped plate 454 is limitedly fitted with a clamping block 456 fixedly set on the inner side wall of the fifth sliding groove 452, and the bottom of the T-shaped plate 454 is fixedly connected to the top of the clamping plate 455, and the bottom of the clamping plate 455 is inserted into and fitted with the clamping plate groove provided at the top of the plug connector 71.

[0053] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed by the present invention should be included in the protection scope recorded in the claims.

Claims

1. An electrical testing fixture, characterized in that: The electrical testing fixture comprises: a base (1), a fixing mechanism (2), and a bracket (3); the top of the base (1) is fixedly connected to the bottom of the fixing mechanism (2); the fixing mechanism (2) is used to fix the electrical component to be tested; a probe (41) is arranged above the fixing mechanism (2); the probe (41) is fixedly arranged at the bottom of a probe seat (4); the probe seat (4) is connected to the telescopic end of an electric push rod (5) via a detachable connecting mechanism (6); the electric push rod (5) can be telescopic in a vertical direction; the fixed end of the electric push rod (5) is fixedly connected to the bracket (3); and the bottom of the bracket (3) is fixedly connected to the base (1); The probe seat (4) is provided with a plug interface (42), a first conductive terminal is fixedly provided inside the plug interface (42), the first conductive terminal is electrically connected to the probe (41) via a built-in circuit, the first conductive terminal cooperates with a second conductive terminal, the second conductive terminal is fixedly provided in a plug connector (71), the plug connector (71) is inserted and cooperated with the plug interface (42), and the second conductive terminal is electrically connected to a control system provided inside the base (1) via a signal circuit (7).

2. An electrical testing fixture according to claim 1, characterized in that: The fixing mechanism (2) comprises: a fixing platform (21), a double-headed motor (211), and a transmission assembly, wherein the double-headed motor (211) is fixedly arranged inside the fixing platform (21), and two output ends of the double-headed motor (211) are respectively connected to two oppositely arranged transmission assemblies; Each transmission assembly comprises: a gear set (212), a transmission screw (213), a first sliding block (214), and a clamp (22); the bottom of the clamp (22) is connected to the top of the first sliding block (214); the bottom of the first sliding block (214) passes through a guide groove (215) provided on the top of the fixed platform (21) and then is threadedly engaged with the transmission screw (213); the first sliding block (214) and the guide groove (215) are slidably engaged in the length direction of the fixed platform (21); and the transmission screw (213) is connected to the output end of the double-headed motor (211) through the gear set (212).

3. An electrical testing fixture according to claim 2, characterized in that: The gear set (212) comprises a driving gear (2121) and at least one driven gear (2122), the driving gear (2121) meshing with the driven gear (2122), the middle portion of the driving gear (2121) being fixedly connected to the output end of the double-headed motor (211), and the middle portion of the driven gear (2122) being fixedly connected to the transmission screw (213).

4. The electrical testing fixture according to claim 2, characterized in that: The clamping plate (22) comprises a clamping plate body (221) and two groups of clamping components, the two groups of clamping components are symmetrically arranged at two ends of the clamping plate body (221), and each group of clamping components comprises: a clamping block (222), a sliding plate (223), a scissor-type telescopic bracket (224), and a second sliding block (225); The clamping block (222) is located between the two clamping plate bodies (221), and the end of the clamping block (222) is fixedly connected to the sliding plate (223). The sliding plate (223) is located in a first sliding groove (226) provided at the end of the clamping plate body (221). The sliding plate (223) and the first sliding groove (226) are slidably matched in the width direction of the fixed platform (21). The sliding plate (223) is connected to one end of a scissor-type telescopic bracket (224). The scissor-type telescopic bracket (224) can be extended and retracted in the width direction of the fixed platform (21). Two scissor arms at the other end of the scissor-type telescopic bracket (224) are respectively connected to the clamping plate body (221) and the second sliding block (225). The second sliding block (225) is sleeved on the sliding guide rod (227), and the second sliding block (225) and the sliding guide rod (227) are slidably matched in the length direction of the fixed platform (21), and the sliding guide rod (227) is fixedly set in the second sliding groove (228), and the second sliding groove (228) is opened at the bottom of the clamping plate body (221), and a first spring (229) is arranged in the second sliding groove (228), one end of the first spring (229) is tightly matched with the inner wall of the second sliding groove (228), and the other end of the first spring (229) is tightly matched with the outer wall of the second sliding block (225), and the bottom of the second sliding block (225) is fixedly connected to the top of the first sliding block (214).

5. The electrical testing fixture according to claim 4, characterized in that: The first spring (229) is sleeved on the sliding guide rod (227).

6. The electrical testing fixture according to claim 1, characterized in that: The detachable connection mechanism (6) comprises: a connection plate (61), a knob (62), a threaded column (63), a pulling plate (64) arranged in a third sliding groove (67), a pulling rod (65), and a plug-in plate (66); The top of the connecting plate (61) is connected to the telescopic end of the electric push rod (5), and a knob (62) is provided above the connecting plate (61). The bottom of the knob (62) is connected to the top of the threaded column (63), and the bottom of the threaded column (63) is threadedly matched with a threaded hole on a pulling plate (64) located in a third sliding groove (67). The third sliding groove (67) is located inside the connecting plate (61), and the pulling plate (64) and the third sliding groove (67) are slidably matched in the vertical direction. The two sides of the bottom of the pulling plate (64) are respectively hinged to the top of a pulling rod (65). The bottom end of each pulling rod (65) is hinged to the outer end of a plug-in plate (66), and the two plug-in plates (66) are slidably matched with the third slide groove (67) in the horizontal direction. The two plug-in plates (66) are arranged opposite to each other, and the inner ends of the two plug-in plates (66) are respectively inserted and matched with two slots (44) opened on both sides of the plug-in block (43). The connecting plug-in block (43) is fixedly arranged on the top of the probe seat (4), and the connecting plug-in block (43) is inserted and matched with the socket (66) opened at the bottom of the connecting plate (61), and the top of the socket (66) is connected to the third slide groove (67).

7. The electrical testing fixture according to claim 1, characterized in that: A sliding baffle (45) is provided at the plug interface (42), and the sliding baffle (45) can slide in a vertical direction. A connecting hole (451) is provided on the sliding baffle (45), and the connecting hole (451) is inserted and matched with the plug connector (71).

8. An electrical testing fixture according to claim 7, characterized in that: A first rack (46) is fixedly provided on the side of the sliding baffle (45), the first rack (46) is meshed with the first transmission gear (47), the middle part of the first transmission gear (47) is fixedly connected to one end of a transmission rod (48), the other end of the transmission rod (48) is fixedly connected to the middle part of a second transmission gear (425), the second transmission gear (425) is meshed with the second rack (426), the second rack (426) is fixedly connected to the sliding column (423), the sliding column (423) and the second spring (422) are internally connected to each other. The outer portion is arranged in a fourth slide groove (421), and the fourth slide groove (421) is opened on the inner side wall of the plug interface (42), the inner wall of the fourth slide groove (421) is pressed and fitted with one end of the second spring (422), and the other end of the second spring (422) is pressed and fitted with the inner end of the sliding column (423), and the sliding column (423) is slidably fitted with the fourth slide groove (421), and the outer end surface of the sliding column (423) is a spherical crown surface (424), and the sliding column (423) is located between the sliding baffle (45) and the opening of the plug interface (42).

9. The electrical testing fixture according to claim 8, characterized in that: A receiving groove is provided in the middle of the sliding column (423), and the second transmission gear (425) and the second rack (426) are both located in the receiving groove in the middle of the sliding column (423).

10. The electrical testing fixture according to claim 8, characterized in that: A fifth sliding groove (452) opening downward is provided on the inner wall of the connecting hole (451), and a third spring (453), a T-shaped plate (454), and a clamping plate (455) are arranged from top to bottom in the fifth sliding groove (452). The top end of the third spring (453) is pressed and fitted with the inner wall of the fifth sliding groove (452), and the bottom end of the third spring (453) is pressed and fitted with the top of the transverse plate of the T-shaped plate (454). The bottom of the transverse plate of the T-shaped plate (454) is limitedly fitted with a clamping block (456) fixedly arranged on the inner wall of the fifth sliding groove (452). The bottom of the T-shaped plate (454) is fixedly connected to the top of the clamping plate (455), and the bottom of the clamping plate (455) is inserted and fitted with the clamping plate groove provided on the top of the plug connector (71).

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