Bidirectional force application test structure

Abstract

The invention relates to the technical field of bidirectional force application test structures, and provides a bidirectional force application test structure, which comprises a DOCK pushing driving assembly, a key striking driving assembly and an LDCM key card insertion module, and is characterized in that the LDCM key card insertion module comprises a module mounting seat, and the module mounting seat is provided with a needle mold assembly used for abutting a plug-in card and a plug-in card mounting seat used for fixing the plug-in card; the plug-in card installation seat is provided with an LDCM plug-in card, a plug-in card positioning groove, an upper overturning block used for pressing an upper button of the button type plug-in card and a lower overturning assembly used for pressing a lower button of the button type plug-in card, and the lower overturning assembly is located on the side, opposite to the upper overturning block, of the plug-in card positioning groove and is in linkage with the upper overturning block. The LDCM plug-in card is installed in the plug-in card positioning groove and is provided with an upper button and a lower button. And the press key driving assembly drives the upper overturning block to overturn or reset.

Description

Technical Field

[0001] The present invention relates to the technical field of bidirectional force application test structures, and in particular to a bidirectional force application test structure. Background Art

[0002] With the development of technologies and markets such as 5G communications, computers, mobile phones, and wearable electronic devices, the demand for flexible circuit board production and testing has increased dramatically. In addition, the number of components integrated on flexible circuit boards has increased dramatically, such as chips, sensors, buttons, etc., resulting in a wide range of test types.

[0003] For these components integrated on the flexible circuit board, their functions need to be tested. In the design and testing scheme of flexible circuit boards in the past two years, the pin distribution inside the dock head has changed from the previous one row each at the top and bottom to the back of a row, and there are two pins at the top and bottom that need to be tested, and when the card is inserted for testing, the front pins cannot be touched to prevent injury. At the same time, a button-type card has also appeared (that is, the initial pin pin is in a retracted state, and the pin pin will extend after pressing the button). After the card is inserted, both the upper and lower buttons need to apply force to extend the pin pin of the card for testing. After the test is completed, the force needs to be withdrawn and the card needs to be ejected. This requires setting power sources at the upper and lower positions of the card to apply force.

[0004] There are the following problems: the upper and lower positions of the card need to be arranged with a cylinder power source structure, which has a complicated structure, requires a relatively large space, and is not suitable for multi-process testing. Summary of the invention

[0005] The present invention provides a bidirectional force application test structure to solve the above problem.

[0006] The technical solution of the present invention is as follows: A bidirectional force test structure, comprising a push DOCK drive component, a key-pressing drive component and an LDCM key card module, wherein the LDCM key card module comprises a module mounting seat, and the module mounting seat is provided with a pin mold component for docking the card and a card mounting seat for fixing the card; The card installation seat is provided with an LDCM card, a card positioning slot, an upper flip block for pressing the upper button of the push-button card, and a lower flip assembly for pressing the lower button of the push-button card. The lower flip assembly is located on the side of the flip block behind the card positioning slot and is linked with the upper flip block. The LDCM card is installed in the card positioning slot and has an upper button and a lower button. The key-pressing driving component drives the upper flip block to flip or reset.

[0007] Furthermore, one end of the upper flip block is rotatably connected to the card insertion mounting seat, and a card insertion upper end button is provided on the side of the upper flip block facing the card insertion positioning slot; The other end of the upper flip block is provided with a linkage block for linking the lower flip assembly.

[0008] Furthermore, the downward turning assembly comprises a downward turning block, a return spring and a downward turning groove provided on the card installation seat, wherein the downward turning block is located in the downward turning groove and is rotatably connected to the inner wall of the downward turning groove; The return spring is located on one side of the lower flip groove, one end of the lower flip block abuts against the return spring and the linkage block at the same time, the other end of the lower flip block is provided with a card insertion lower end button, and the connection point between the lower flip block and the lower flip groove is located between the return spring and the card insertion lower end button.

[0009] Furthermore, the module mounting seat is provided with a fixing groove for fixing the card mounting seat, and a plurality of guide pins are provided in the fixing groove, and each guide pin is embedded in the card mounting seat; The module mounting seat is also provided with a linear guide rail, one end of which abuts against the card mounting seat; The fixing groove is also provided with a magnet for adsorbing the card installation seat; The card installation seat is provided with a cover plate for fastening the card, the cover plate is located on the surface of the card positioning slot and is fixedly connected to the card installation seat through a fastener.

[0010] Furthermore, the module mounting seat is provided with a limit rotary block, a limit copper sleeve and a torsion spring. The limit copper sleeve is fixedly connected to the module mounting seat. The limit rotary block and the limit copper sleeve are rotationally connected through the torsion spring. In the default state, part of the limit rotary block structure abuts against the surface of the card mounting seat.

[0011] Furthermore, the key-pressing driving assembly includes a mounting frame, a key-pressing cylinder, a key-pressing guide rail, a fixed slider, and an elastic pressing assembly for pressing the key; The key-punching cylinder is fixed to the mounting frame, the key-punching guide rail is installed on the mounting frame, the fixed slider is slidably connected to the key-punching guide rail, the output shaft of the key-punching cylinder is connected to the fixed slider, and the elastic pressing component is connected to the fixed slider.

[0012] Furthermore, the elastic pressing assembly includes an elastic mounting block, a pressing spring, a spring stopper and an elastic pressing rod; The elastic mounting block is fixedly connected to the fixed sliding block by fasteners. The elastic mounting block is provided with a sliding hole for the elastic pressure rod to pass through. A spring stopper is provided on the side of the sliding hole facing the key-pressing cylinder. Two ends of the pressing spring respectively abut against the spring stopper and one end of the elastic pressure rod extending into the sliding hole, and the other end of the elastic pressure rod extends out of the sliding hole.

[0013] Furthermore, the axial cross-section of the elastic pressure rod is in a "T"-shaped structure, and a floating countersunk hole is provided at one end of the sliding hole facing the spring stopper to prevent the elastic pressure rod from falling out.

[0014] Furthermore, the push DOCK driving assembly includes a motor mounting plate, a motor module, and a photoelectric sensing module for monitoring the working condition of the motor module, and the photoelectric sensing module and the motor module are both mounted on the motor mounting plate; The output shaft of the motor module is connected with a push block mounting seat and a DOCK push block, and the push block mounting seat is fixedly connected with the DOCK push block; The card insertion installation seat is provided with an L-shaped handle, and a clamping groove is provided on the surface of the DOCK push block, and the L-shaped handle can be clamped with the clamping groove.

[0015] The motor mounting plate is provided with a push block linear guide rail, and the push block mounting seat is slidably connected with the push block linear guide rail.

[0016] The beneficial effects of the present invention are: According to the test requirements and the key-type card insertion structure, the present invention designs a test structure that applies force in one direction and causes the card to be stressed on both sides. Only one power source is needed to cooperate with the LDCM key-type card insertion module to achieve simultaneous pressing of the upper and lower buttons and push out the pin pins.

[0017] Compared with the previous dual-power source structure, this structure solves the problem of insufficient space for multi-process testing equipment, shifts the force application point position, and is no longer limited to the upper and lower positions of the buttons, making the design more compact, flexible, and easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Figure 1 Schematic diagram of the product under test; Figure 2 It is a partial cross-sectional view of the DOCK head; Figure 3 It is a schematic diagram of the structure of multi-process testing equipment; Figure 4 It is a schematic diagram of the structure of the disc carrier assembly; Figure 5 This is a schematic diagram of the LDCM top plate assembly structure; Figure 6 This is a schematic diagram of the DOCK drive component structure; Figure 7 To push the DOCK drive component stereogram; Figure 8 This is a schematic diagram of the key-pressing drive component structure; Fig. 9 is a cross-sectional view of the elastic pressing component; Fig.10 This is a schematic diagram of the LDCM key card module structure; Fig.11 This is the exploded view of the LDCM key card module; Fig.12 for Fig.11 A in the enlarged view; Fig.13 This is a schematic diagram of the LDCM card structure.

[0020] In the figure: 1. LDCM pin; 2. DOCK pin; 3. Four-station disc structure; 4. LDCM top plate assembly; 5. Disc carrier assembly; 51. Carrier; 52. DOCK positioning block; 53. Product; 54. Oil-free bushing; 6. Key-pressing drive assembly; 61. Mounting frame; 62. Key-pressing cylinder; 63. Key-pressing guide rail; 64. Fixed slider; 65. Elastic pressing assembly; 651. Elastic mounting block; 652. Pressing spring; 653. Spring stopper; 654. Elastic pressing rod; 655. Sliding hole; 656. Floating countersunk hole; 66. Floating joint; 7. LDCM key card module; 71. Module mounting seat; 711. Fixed slot; 712. Guide pin; 713. Magnet; 714. Linear guide rail; 715. Card adapter plate; 716. L-shaped handle; 72. Card mounting seat; 721. LDCM card; 7211. Upper button; 7212. Lower button; 722. Upward flip block; 7221. Upper button of card; 723. Lower flip block; 7231. Lower button of card; 724. Reset spring; 725. Lower flip slot; 726. Card positioning slot; 727. Cover plate; 731. Lead needle mold; 732. Double-head probe; 741. Limiting rotary block; 742. Limiting copper sleeve; 743. Torsion spring; 8. DOCK drive assembly; 81. Motor mounting plate; 82. Motor module; 83. Photoelectric sensor module; 84. Push block mounting seat; 85. DOCK push block; 851. Card slot; 91. Guide shaft; 92. Top plate limit block; 93. Top plate one; 94. Top plate two. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0022] like Figure 1-13As shown, a bidirectional force test structure is suitable for multi-process testing equipment, usually installed on the equipment top plate, and cooperates with the lower disc carrier assembly 5. It mainly includes three major components: a push DOCK drive assembly 8, a key-pressing drive assembly 6, and an LDCM key card module 7, all of which can be installed on the top plate. Among them, the LDCM key card module 7 includes a module mounting seat 71, and a needle mold assembly for docking the card and a card mounting seat 72 for fixing the card are arranged on the module mounting seat 71. The needle mold assembly includes a lead needle mold 731, a double-headed probe 732, etc., and can be connected to the card adapter board 715 to transmit electrical signals, which will not be repeated in this embodiment.

[0023] In this embodiment, the card installation seat 72 is provided with a key-type LDCM card 721, a card positioning slot 726, a positioning column for assisting the positioning of the LDCM card 721, an upper flip block 722 for pressing the upper button 7211 of the key-type card, and a lower flip assembly for pressing the lower button 7212 of the key-type card. The lower flip assembly is arranged on the side of the card positioning slot 726 facing away from the upper flip block 722, and is linked with the upper flip block 722 to achieve synchronous pressing and resetting. The LDCM card 721 is fixedly installed in the card positioning slot 726, and has an upper button 7211 and a lower button 7212, which are used to eject the pin by pressing.

[0024] Specifically, one end of the upper flip block 722 in this embodiment is rotatably connected to the card installation seat 72 via a rotating shaft or a rotating pin, and a card insertion upper end button 7221 is provided on the side of the upper flip block 722 facing the card insertion positioning slot 726, and the card insertion upper end button 7221 can abut against the upper button 7211. The other end of the upper flip block 722 is provided with a linkage block for linking the lower flip assembly.

[0025] The lower flip assembly includes a lower flip block 723, a return spring 724 and a lower flip slot 725 provided in the card insertion mounting seat 72. The lower flip block 723 is located in the lower flip slot 725 and is rotatably connected to the inner wall of the lower flip slot 725 via a rotating shaft or a rotating pin. The return spring 724 is located on one side of the lower flip slot 725. The two sides of one end of the lower flip block 723 abut against the return spring 724 and the linkage block respectively. The other end of the lower flip block 723 is provided with a card insertion lower end button 7231, which can abut against the lower button 7212. Then, the connection point between the lower flip block 723 and the lower flip groove 725 is set between the reset spring 724 and the lower card insertion button 7231, so that when the upper flip block 722 drives the upper button 7211 to be pressed down, the lower flip block 723 connected to the reset spring 724 can be pressed through the linkage block, and the lower card insertion button 7231 can be lifted through the lever principle, and the lower button 7212 and the upper button 7211 can be pressed simultaneously with the upper button 7211, so that the card insertion pin pin can be ejected smoothly. When the upper flip block 722 is reset, the reset spring 724 loses force, and the lower flip block 723 is lifted to reset, and the pin pin is retracted in time to prevent the pin pin from extending out and damaging the product 53.

[0026] In addition, in this embodiment, a fixing groove 711 for fixing the card installation seat 72 is provided in the module installation seat 71 to improve the stability of the card installation seat 72, and a plurality of guide pins 712 are provided in the fixing groove 711, each guide pin 712 is embedded in the card installation seat 72, which is convenient for positioning when installing the card installation seat 72, and also prevents the card installation seat 72 from moving during operation. At the same time, the module installation seat 71 is also provided with at least two linear guide rails 714 connected with itself in a sliding manner, located on both sides of the LDCM card 721, and the linear guide rails 714 can be selected to have a dovetail groove structure, which has high stability. The linear guide rails 714 are fixed with fasteners after position adjustment, and abut against the card installation seat 72 through one end of itself, thereby ensuring the accuracy of the card installation part.

[0027] A magnet 713 for adsorbing the card insertion seat 72 is also provided in the fixing groove 711 to prevent the card insertion seat 72 from moving up and down arbitrarily, and the structure is compact.

[0028] The card mounting seat 72 is also provided with a cover plate 727 for fastening the card. The cover plate 727 is located on the surface of the card positioning groove 726 and is fixedly connected to the card mounting seat 72 by fasteners to prevent the card from moving due to external force.

[0029] The module mounting seat 71 is provided with at least two groups of limit rotary blocks 741, limit copper sleeves 742 and torsion springs 743. The limit rotary blocks 741 press the card mounting seat 72, which is convenient for fixing and replacing card mounting seats 72 of different specifications and batches, so as to achieve quick disassembly and assembly. Specifically, the limit copper sleeve 742 is fixedly connected to the module mounting seat 71, and the limit rotary block 741 is rotationally connected to the limit copper sleeve 742 through the torsion spring 743, and in the default state, part of the structure of the limit rotary block 741 abuts against the surface of the card mounting seat 72. The limit rotary block 741 can be rotated to separate it from the contact with the card mounting seat 72. At this time, the torsion spring 743 accumulates force, and the card mounting seat 72 can be taken out for maintenance or replacement. When the staff loosens the limit rotary block 741, it can be reset automatically under the force of the torsion spring 743, which is easy to operate.

[0030] like Figure 8-9 As shown, the key-pressing driving assembly 6 in this embodiment is mainly used to drive the upper flip block 722 to flip or reset. Specifically, the key-pressing driving assembly 6 includes but is not limited to a mounting frame 61, a key-pressing cylinder 62, a key-pressing guide rail 63 (linear), a fixed slider 64, and an elastic pressing assembly 65 for pressing the key. Among them, the key-pressing cylinder 62 is fixed to the mounting frame 61, the key-pressing guide rail 63 is installed on the mounting frame 61, the fixed slider 64 is slidably connected to the key-pressing guide rail 63, the output shaft of the key-pressing cylinder 62 is connected to the fixed slider 64 through a floating joint 66, and the stability of the motion trajectory of the fixed slider 64 is maintained through the key-pressing guide rail 63. The design of the floating joint 66 improves work efficiency. The floating joint is compact, easy to install, durable, and highly resistant to pressure. It allows the key-punching cylinder 62 to be adjusted without disassembly. At the same time, by reducing the friction between the key-punching cylinder 62 and the fixed slider 64, it helps to reduce the wear of the key-punching cylinder 62 and extend its service life. It can also effectively absorb the error between the key-punching cylinder 62 and the fixed slider 64, maintain the smooth operation of the equipment, reduce problems caused by "eccentricity" and "lack of parallelism", reduce wear, and ensure that the equipment operates stably in a harsh working environment. Then the elastic pressing component 65 is connected to the fixed slider 64, and when the output shaft of the key-punching cylinder 62 is extended or reset, the upper flip block 722 is stably driven to rotate.

[0031] The design purpose of the elastic pressing component 65 is to control the force output to the upper flip block 722. Specifically, it includes an elastic mounting block 651, a pressing spring 652, a spring stopper 653 and an elastic pressing rod 654. The elastic mounting block 651 is fixedly connected with the fixed slider 64 by fasteners to realize linkage. The elastic mounting block 651 is provided with a sliding hole 655 for the elastic pressing rod 654 to pass through. The sliding hole 655 is provided with a spring stopper 653 on one side of the key-pressing cylinder 62 for fixing the pressing spring 652. The two ends of the pressing spring 652 respectively abut against the spring stopper 653 and one end of the elastic pressing rod 654 extending into the sliding hole 655. The other end of the elastic pressing rod 654 extends out of the sliding hole 655, so that the elastic pressing rod 654 contracts when pressing the upper flip block 722 and extends when resetting.

[0032] In order to prevent the elastic pressure rod 654 from falling out of the sliding hole 655, the axial cross-section of the elastic pressure rod 654 is designed to be a "T"-shaped structure in this embodiment, and a floating countersunk hole 656 is provided at one end of the sliding hole 655 facing the spring stop block 653 to prevent the elastic pressure rod 654 from falling out, so that the protruding part of the elastic pressure rod 654 is restricted in the floating countersunk hole 656, and the height of the floating countersunk hole 656 should be able to provide sufficient floating stroke for the elastic pressure rod 654.

[0033] like Figure 6-7 As shown, the push DOCK drive component 8 in this embodiment is mainly used to push the LDCM key card module 7 to the specified position to complete the test. It mainly includes a motor mounting plate 81, a motor module 82, and a photoelectric sensing module 83 for monitoring the working condition of the motor module 82. The photoelectric sensing module 83 and the motor module 82 are both installed on the motor mounting plate 81. The photoelectric sensing module 83 feeds back information to the control system by monitoring the movement of the push block mounting seat 84, which is convenient for the background management of the equipment operation and adjustment. The motor module 82 can use a screw motor with high precision and fast response speed. The output shaft of the motor module 82 is connected with the push block mounting seat 84 and the DOCK push block 85, and the motor mounting plate 81 is provided with a push block linear guide rail 714. The push block mounting seat 84 is slidably connected with the push block linear guide rail 714 (preferably a dovetail groove structure, stable operation), and then the push block mounting seat 84 is fixedly connected with the DOCK push block 85. The linear guide rail 714 can improve the stability of the push block mounting seat 84 and the DOCK push block 85, ensuring that the LDCM key card module 7 is accurately pushed to the specified position. In this embodiment, the L-shaped handle 716 provided on the card mounting seat 72 and the clamping groove 851 opened on the surface of the DOCK push block 85 can realize the clamping of the L-shaped handle 716 and the clamping groove 851, maintaining the linkage relationship between the two, which can be pushed or pulled back, with a compact and reliable structure.

[0034] The working steps of this embodiment are: 1. First, the automated equipment loads the carrier 51, and the carrier 51 moves to the LDCM test station; 2. The LDCM top plate is pressed down. After the top plate is pressed down to the right position, the DOCK motor drives the LDCM key card module 7 to be inserted into the product 53DOCK head; 3. The key-pressing cylinder 62 is pressed downward, and the elastic pressure rod 654 acts on the upper flip block 722. The upper flip block 722 applies force to the upper card-insertion key 7221 and the lower flip block 723. The lower flip block 723 transmits the force to the lower card-insertion key 7231 through the rotating shaft, so that the force of the cylinder acts on both the upper and lower keys at the same time. After the card insertion button is pressed, the pin will extend out to contact the product 53, and the DOCK LDCM point will be brought out for testing through the probe on the lead pin mold 731 and the card insertion adapter board 715; 4. After the test is completed, the key cylinder 62 is first retracted to withdraw the applied force, so that the card pin is retracted (to prevent the withdrawal from scratching the product 53), and then the DOCK motor is pushed back to the origin to drive the card to withdraw, the top plate is lifted, and the carrier plate 51 moves to the next test station; At this point, the entire test process ends and enters the next cycle.

[0035] The top plate 51 uses the guide shaft 91 and the limit block to ensure the alignment accuracy between the top plate and the carrier plate 51 , while the LDCM card 721 module uses the linear guide rail 714 to ensure its position accuracy.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bidirectional force test structure, comprising a DOCK push drive component (8), a key-press drive component (6) and an LDCM key card module (7), characterized in that: The LDCM key card module (7) comprises a module mounting seat (71), on which a pin mold assembly for docking the card and a card mounting seat (72) for fixing the card are provided; The card insertion seat (72) is provided with an LDCM card (721), a card insertion positioning slot (726), an upper flip block (722) for pressing an upper button (7211) of a push-type card insertion, and a lower flip assembly for pressing a lower button (7212) of a push-type card insertion; the lower flip assembly is located on the side of the card insertion positioning slot (726) facing away from the upper flip block (722) and is linked to the upper flip block (722); the LDCM card (721) is installed in the card insertion positioning slot (726) and has an upper button (7211) and a lower button (7212); The key-pressing driving component (6) drives the upper flipping block (722) to flip or reset.

2. The bidirectional force test structure according to claim 1, characterized in that: One end of the upper flip block (722) is rotatably connected to the card insertion mounting seat (72), and a card insertion upper end button (7221) is provided on the side of the upper flip block (722) facing the card insertion positioning slot (726); The other end of the upper flip block (722) is provided with a linkage block for linking the lower flip assembly.

3. The bidirectional force test structure according to claim 2, characterized in that: The downward turning assembly comprises a downward turning block (723), a return spring (724) and a downward turning groove (725) provided on the card insertion mounting seat (72); the downward turning block (723) is located in the downward turning groove (725) and is rotatably connected to the inner wall of the downward turning groove (725); The return spring (724) is located on one side of the lower flip groove (725); one end of the lower flip block (723) abuts against the return spring (724) and the linkage block at the same time; the other end of the lower flip block (723) is provided with a card insertion lower end button (7231); and the connection point between the lower flip block (723) and the lower flip groove (725) is located between the return spring (724) and the card insertion lower end button (7231).

4. The bidirectional force test structure according to claim 3, characterized in that: The module mounting seat (71) is provided with a fixing groove (711) for fixing the card mounting seat (72), and a plurality of guide pins (712) are provided in the fixing groove (711), and each guide pin (712) is embedded in the card mounting seat (72); The module mounting seat (71) is also provided with a linear guide rail (714), one end of the linear guide rail (714) being in contact with the card mounting seat (72); A magnet (713) for adsorbing the card installation seat (72) is also provided in the fixing groove (711); The card installation seat (72) is provided with a cover plate (727) for fastening the card, the cover plate (727) is located on the surface of the card positioning groove (726) and is fixedly connected to the card installation seat (72) via a fastener.

5. The bidirectional force test structure according to claim 4, characterized in that: The module mounting seat (71) is provided with a limit rotary block (741), a limit copper sleeve (742) and a torsion spring (743); the limit copper sleeve (742) is fixedly connected to the module mounting seat (71); the limit rotary block (741) and the limit copper sleeve (742) are rotatably connected via the torsion spring (743); and in a default state, a part of the limit rotary block (741) is in contact with the surface of the card mounting seat (72).

6. The bidirectional force test structure according to claim 1, 2, 3, 4 or 5, characterized in that: The key-pressing driving assembly (6) comprises a mounting frame (61), a key-pressing cylinder (62), a key-pressing guide rail (63), a fixed slider (64), and an elastic pressing assembly (65) for pressing keys; The key-pressing cylinder (62) is fixed to the mounting frame (61), the key-pressing guide rail (63) is mounted on the mounting frame (61), the fixed slider (64) is slidably connected to the key-pressing guide rail (63), the output shaft of the key-pressing cylinder (62) is connected to the fixed slider (64), and the elastic pressing component (65) is connected to the fixed slider (64).

7. The bidirectional force test structure according to claim 6, characterized in that: The elastic pressing assembly (65) comprises an elastic mounting block (651), a pressing spring (652), a spring stopper (653) and an elastic pressing rod (654); The elastic mounting block (651) is fixedly connected to the fixed slider (64) by means of a fastener. The elastic mounting block (651) is provided with a sliding hole (655) for the elastic pressure rod (654) to pass through. A spring stopper (653) is provided on the side of the sliding hole (655) facing the key-pressing cylinder (62). Two ends of the pressing spring (652) respectively abut against the spring stopper (653) and one end of the elastic pressure rod (654) extending into the sliding hole (655), and the other end of the elastic pressure rod (654) extends out of the sliding hole (655).

8. The bidirectional force test structure according to claim 7, characterized in that: The axial cross section of the elastic pressure rod (654) is in a "T"-shaped structure, and a floating sink hole (656) for preventing the elastic pressure rod (654) from falling out is provided at one end of the sliding hole (655) facing the spring stopper (653).

9. The bidirectional force test structure according to claim 1, 2, 3, 4 or 5, characterized in that: The push DOCK driving assembly (8) comprises a motor mounting plate (81), a motor module (82), and a photoelectric sensing module (83) for monitoring the working condition of the motor module (82), wherein the photoelectric sensing module (83) and the motor module (82) are both mounted on the motor mounting plate (81); The output shaft of the motor module (82) is connected to a push block mounting seat (84) and a DOCK push block (85), and the push block mounting seat (84) and the DOCK push block (85) are fixedly connected; The card insertion seat (72) is provided with an L-shaped handle (716), and a clamping groove (851) is provided on the surface of the DOCK push block (85), and the L-shaped handle (716) can be clamped with the clamping groove (851).

10. The bidirectional force test structure according to claim 9, characterized in that: The motor mounting plate (81) is provided with a push block linear guide rail (714), and the push block mounting seat (84) is slidably connected to the push block linear guide rail (714).

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