A bidirectional force testing structure

By designing a bidirectional force test structure and using a single power source in conjunction with the LDCM key card module, the problem of large space occupation in flexible circuit board testing is solved, and the flexibility and convenience of multi-process testing are achieved.

CN119901469BActive Publication Date: 2025-10-03OAT (HANGZHOU) INTELLIGENT MFG CO LTD
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Patent Information

Application Number
CN202510028004.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-01-08
Publication Date
2025-10-03
Estimated Expiration
2045-01-08

AI Technical Summary

Technical Problem

The existing flexible circuit board test structure requires dual power sources, which takes up a lot of space and is not suitable for multi-process testing.

Method used

A bidirectional force test structure is designed, which adopts a single power source to cooperate with the LDCM button card module. The upper flip block and the lower flip assembly are used to realize the synchronous pressing of the upper and lower buttons, and the push DOCK drive assembly and the key drive assembly are used to realize the push and key operation of the card.

Benefits of technology

It realizes the completion of multi-process testing in a compact and flexible structure, reduces space occupation, simplifies equipment design and facilitates maintenance.

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Abstract

The present invention relates to the technical field of bidirectional force testing structures, and proposes a bidirectional force testing structure, including a DOCK push drive component, a key-pressing drive component and an LDCM key-pressing card module. The LDCM key-pressing card module includes 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 mounting seat is provided with an LDCM card, a card positioning slot, an upper flip block for pressing the upper button of the key-pressing card, and a lower flip component for pressing the lower button of the key-pressing card. The lower flip component is located on the side of the card positioning slot opposite to the upper flip block and is linked to 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 drive component drives the upper flip block to flip or reset.
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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 sharply, such as chips, sensors, buttons, etc., resulting in a wide range of test types.

[0003] The components integrated on the flexible circuit board need to be tested for their proper function. In the design and testing schemes for flexible circuit boards over the past two years, the internal pin distribution of the dock head has changed from the previous one row at the top and one row at the bottom to two pins at the back of the row. In addition, two pins at the top and two at the bottom need to be tested. When inserting the card for testing, the front pins must not be touched to prevent injury. At the same time, a push-button card has also appeared (that is, the pins are initially retracted, and the pins extend after pressing the button). After the card is inserted, both the upper and lower buttons need to apply force to extend the pins 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 the installation of power sources at the top and bottom 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 is complicated and requires a relatively large space, and is not suitable for multi-process testing. Summary of the Invention

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

[0006] The technical solutions of the present invention are as follows:

[0007] A bidirectional force test structure includes a push dock drive component, a key-press drive component, and an LDCM key card module. The LDCM key card module includes a module mounting seat, which is provided with a pin mold component for docking the card and a card mounting seat for fixing the card.

[0008] The card mounting 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 card positioning slot opposite to the upper flip block and is linked to the upper flip block. The LDCM card is installed in the card positioning slot and has an upper button and a lower button.

[0009] The key-pressing driving component drives the upper flip block to flip or reset.

[0010] Furthermore, one end of the upper flip block is rotatably connected to the card installation seat, and a card insertion upper end button is provided on the side of the upper flip block facing the card insertion positioning slot;

[0011] The other end of the upper flip block is provided with a linkage block for linking the lower flip assembly.

[0012] Furthermore, the downward flip assembly includes a downward flip block, a return spring, and a downward flip groove provided on the card mounting seat. The downward flip block is located in the downward flip groove and is rotatably connected to the inner wall of the downward flip groove.

[0013] 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.

[0014] 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;

[0015] The module mounting seat is further provided with a linear guide rail, one end of which abuts against the card mounting seat;

[0016] The fixing slot is also provided with a magnet for attracting the card mounting seat;

[0017] 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.

[0018] 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.

[0019] Furthermore, the key-pressing drive 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;

[0020] 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 slidingly 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.

[0021] Furthermore, the elastic pressing assembly includes an elastic mounting block, a pressing spring, a spring stopper and an elastic pressing rod;

[0022] The elastic mounting block is fixedly connected to the fixed slider 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. The two ends of the pressing spring respectively abut the spring stopper and the elastic pressure rod and extend into one end of the sliding hole, and the other end of the elastic pressure rod extends out of the sliding hole.

[0023] 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.

[0024] Furthermore, the push DOCK drive 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;

[0025] The output shaft of the motor module is connected to a push block mounting seat and a DOCK push block, and the push block mounting seat is fixedly connected to the DOCK push block;

[0026] The card 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 is clamped with the clamping groove.

[0027] The motor mounting plate is provided with a push block linear guide rail, and the push block mounting seat is slidably connected to the push block linear guide rail.

[0028] The beneficial effects of the present invention are:

[0029] Based on 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 force to be applied on both sides of the card. 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.

[0030] 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

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Figure 1 Schematic diagram of the product under test;

[0033] Figure 2 It is a partial cross-sectional view of the DOCK head;

[0034] Figure 3 This is a schematic diagram of the structure of the multi-process testing equipment;

[0035] Figure 4Schematic diagram of the disc carrier assembly structure;

[0036] Figure 5 This is a schematic diagram of the LDCM top plate assembly structure;

[0037] Figure 6 This is a schematic diagram of the DOCK drive component structure;

[0038] Figure 7 This is a three-dimensional diagram of the DOCK drive assembly;

[0039] Figure 8 This is a schematic diagram of the key-pressing driver component structure;

[0040] Figure 9 is a cross-sectional view of the elastic pressing component;

[0041] Figure 10 This is a structural diagram of the LDCM key card module;

[0042] Figure 11 This is the exploded view of the LDCM button card module;

[0043] Figure 12 for Figure 11 A magnified view of point A in the figure;

[0044] Figure 13 This is a schematic diagram of the LDCM card structure.

[0045] 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 bracket; 62. Key-pressing cylinder; 63. Key-pressing guide rail; 64. Fixed slider; 65. Elastic pressing assembly; 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. Fixing 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; 7212. Lower button; 722. Upward flip block; 7221. Upper button of card; 723. Lower flip block; 7231. Lower button of card; 724. Return spring; 725. Lower flip slot; 726. Card positioning slot; 727. Cover plate; 731. Lead needle mold; 732. Double-head probe; 741. Limit rotary block; 742. Limit 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 connection slot; 91. Guide shaft; 92. Top plate limit block; 93. Top plate one; 94. Top plate two. DETAILED DESCRIPTION

[0046] 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 embodiments described 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 making any creative efforts are within the scope of protection of the present invention.

[0047] Example 1

[0048] like Figure 1-13 As shown, a bidirectional force-applying test structure suitable for multi-process testing equipment is typically mounted on the equipment's top plate, cooperating with the lower disc carrier assembly 5. It primarily comprises three 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 mounted on the top plate. The LDCM key card module 7 includes a module mounting base 71, upon which are mounted a pin mold assembly for docking the card and a card mounting base 72 for securing the card. The pin mold assembly includes a lead pin mold 731, a double-ended probe 732, and connects to the card adapter board 715 to transmit electrical signals. This embodiment will not be further described.

[0049] In this embodiment, the card mount 72 includes a push-button LDCM card 721, a card positioning slot 726, a positioning post to assist in positioning the LDCM card 721, an upper flip block 722 for pressing the upper button on the push-button card, and a lower flip assembly for pressing the lower button 7212 on the push-button card. The lower flip assembly is located on the side of the card positioning slot 726 facing away from the upper flip block 722 and works in conjunction with the upper flip block 722 to achieve synchronous pressing and resetting. The LDCM card 721 is fixedly mounted in the card positioning slot 726 and has an upper button and a lower button 7212 for ejecting the pins.

[0050] Specifically, one end of the upper flip block 722 in this embodiment is rotatably connected to the card insertion mounting seat 72 via a rotating shaft or rotating pin. 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 card insertion upper end button 7221 can abut against the upper button. A linkage block is provided at the other end of the upper flip block 722 for linking the lower flip assembly.

[0051] The downward flip assembly includes a downward flip block 723, a return spring 724, and a downward flip slot 725 defined in the card insertion seat 72. The downward flip block 723 is located within the downward flip slot 725 and is rotatably connected to the inner wall of the slot 725 via a rotating shaft or a rotating pin. The return spring 724 is located on one side of the slot 725. The two sides of one end of the downward flip block 723 respectively abut the return spring 724 and the linkage block. The other end of the downward flip block 723 is provided with a card insertion lower end button 7231, which abuts against the lower button 7212. The connection point between the lower flip block 723 and the lower flip slot 725 is then positioned between the return spring 724 and the lower card insertion button 7231. This allows the lower flip block 723 to be connected to the return spring 724 when the upper flip block 722 drives the upper button downward, pressing the end of the return spring 724 through the linkage block. This leverages the lower card insertion button 7231, which in turn simultaneously presses the lower button 7212 and the upper button, allowing the card insertion pin to be ejected smoothly. When the upper flip block 722 is reset and the return spring 724 loses its force, it pushes the lower flip block 723 back into place, retracting the pin in a timely manner to prevent it from extending and damaging the product 53.

[0052] In addition, this embodiment provides a fixing slot 711 within the module mounting base 71 for securing the card mounting base 72, enhancing the stability of the card mounting base 72. Several guide pins 712 are embedded within the fixing slot 711 and embedded within the card mounting base 72, facilitating positioning of the card mounting base 72 during installation and preventing movement during operation. Furthermore, the module mounting base 71 is provided with at least two linear guide rails 714 slidably connected to the module mounting base 71, located on either side of the LDCM card 721. These linear guide rails 714 utilize a dovetail groove structure for enhanced stability. After being adjusted in position, they are secured with fasteners, with one end of the linear guide rail abutting the card mounting base 72 to ensure precise card installation.

[0053] A magnet 713 for adsorbing the card installation seat 72 is further provided in the fixing groove 711 to prevent the card installation seat 72 from moving up and down arbitrarily, and the structure is compact.

[0054] The card mounting seat 72 is further 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.

[0055] The module mounting base 71 is provided with at least two sets of limit knobs 741, limit copper sleeves 742, and torsion springs 743. The limit knobs 741 press against the card mounting base 72, making it convenient for both fixing and replacing card mounting bases 72 of different specifications and batches, thus achieving quick assembly and disassembly. Specifically, the limit copper sleeve 742 is fixedly connected to the module mounting base 71, and the limit knob 741 and the limit copper sleeve 742 are rotationally connected via the torsion spring 743. In the default state, part of the limit knob 741 abuts the surface of the card mounting base 72. The limit knob 741 can be rotated to disengage it from the card mounting base 72. At this time, the torsion spring 743 accumulates force, allowing the card mounting base 72 to be removed for maintenance or replacement. When the staff releases the limit knob 741, it can automatically reset under the force of the torsion spring 743, making it easy to operate.

[0056] like Figure 8-9As shown, the key-pressing drive assembly 6 in this embodiment is primarily used to drive the upper flip block 722 to flip or reset. Specifically, the key-pressing drive assembly 6 includes, but is not limited to, a mounting frame 61, a key-pressing cylinder 62, a linear key-pressing guide 63, a fixed slider 64, and a resilient pressing assembly 65 for pressing the keys. The key-pressing cylinder 62 is fixed to the mounting frame 61, the key-pressing guide 63 is mounted to the mounting frame 61, the fixed slider 64 is slidably connected to the key-pressing guide 63, and the output shaft of the key-pressing cylinder 62 is connected to the fixed slider 64 via a floating joint 66. The key-pressing guide 63 maintains the stability of the fixed slider 64's motion trajectory. The design of the floating joint 66 improves work efficiency. It is compact, easy to install, durable, and highly compressive, allowing the key-pressing cylinder 62 to be adjusted without disassembly. This reduces friction between the key-pressing cylinder 62 and the fixed slider 64, helping to reduce wear and extend the service life of the key-pressing cylinder 62. It also effectively absorbs errors between the key-pressing cylinder 62 and the fixed slider 64, maintaining smooth operation of the equipment and minimizing problems caused by eccentricity and lack of parallelism. This reduces wear and ensures stable operation in harsh working environments. The elastic pressing assembly 65 is then connected to the fixed slider 64. When the output shaft of the key-pressing cylinder 62 extends or resets, it stably drives the upper flip block 722 to rotate.

[0057] The purpose of designing the elastic pressing assembly 65 is to control the force output to the upper flip block 722. Specifically, it includes an elastic mounting block, a pressing spring 652, a spring stopper 653, and an elastic pressing rod 654. The elastic mounting block is fixedly connected to the fixed slider 64 by fasteners to achieve linkage. The elastic mounting block 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 the side facing 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.

[0058] 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 opened 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.

[0059] like Figure 6-7As shown, the push-DOCK drive assembly 8 in this embodiment is primarily used to push the LDCM key card module 7 to the designated position to complete the test. It primarily comprises a motor mounting plate 81, a motor module 82, and a photoelectric sensor module 83 for monitoring the operating status of motor module 82. Both the photoelectric sensor module 83 and the motor module 82 are mounted on the motor mounting plate 81. The photoelectric sensor module 83 monitors the movement of the push-block mounting base 84 and provides feedback to the control system, facilitating back-end management and adjustments of device operation. A lead screw motor can be used for the motor module 82, offering high precision and fast response. The output shaft of the motor module 82 is connected to the push block mounting base 84 and the docking push block 85. The motor mounting plate 81 is provided with a push block linear guide 714. The push block mounting base 84 and the push block linear guide 714 (preferably a dovetail groove structure for stable operation) are slidably connected, and then the push block mounting base 84 and the docking push block 85 are fixedly connected. The linear guide 714 improves the stability of the push block mounting base 84 and the docking 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 base 72 and the engaging groove 851 provided on the surface of the docking push block 85 enable the L-shaped handle 716 to engage with the engaging groove 851, maintaining a linkage relationship between the two, allowing both pushing and retracting, resulting in a compact and reliable structure.

[0060] The working steps of this embodiment are:

[0061] 1. First, the automated equipment loads the carrier board 51, and the carrier board 51 moves to the LDCM test station;

[0062] 2. The LDCM top plate is pressed down. After the top plate is pressed into place, the DOCK motor drives the LDCM key card module 7 to be inserted into the product 53DOCK head;

[0063] 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 button 7221 and the lower flip block 723. The lower flip block 723 transmits the force to the lower card insertion button 7231 via the rotating shaft, so that the cylinder force acts on both the upper and lower buttons at the same time.

[0064] After the card insertion button is pressed, the pin will extend to contact 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;

[0065] 4. After the test is completed, press the button cylinder 62 to withdraw the applied force, so that the card pin is retracted (to prevent the ejection from scratching the product 53), and then push the DOCK motor back to the origin to drive the card out, the top plate is lifted, and the carrier plate 51 moves to the next test station;

[0066] At this point, the entire test process ends and enters the next cycle.

[0067] The top plate 51 is positioned accurately with respect to the carrier plate 51 by means of the guide shaft 91 and the limit block, while the LDCM card 721 is positioned accurately by means of the linear guide rail 714 .

[0068] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bidirectional force test structure, comprising a push DOCK drive component (8), a key-pressing 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 installation seat (72) is provided with an LDCM card (721), a card positioning slot (726), an upper flip block (722) for pressing an upper button of a key-type card, and a lower flip assembly for pressing a lower button (7212) of a key-type card. The lower flip assembly is located on the side of the card 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 positioning slot (726) and has an upper button and a lower button (7212). The key-pressing driving component (6) drives the upper flip block (722) to flip or reset.

2. The bidirectional force test structure according to claim 1, wherein: 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, wherein: The lower flip assembly comprises a lower flip block (723), a return spring (724) and a lower flip groove (725) provided on the card mounting seat (72); the lower flip block (723) is located in the lower flip groove (725) and is rotatably connected to the inner wall of the lower flip 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 further provided with a linear guide rail (714), one end of which abuts against the card mounting seat (72); A magnet (713) for adsorbing the card mounting seat (72) is also provided in the fixing groove (711); The card mounting 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 slot (726) and is fixedly connected to the card mounting 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 limiting rotary block (741), a limiting copper sleeve (742) and a torsion spring (743); the limiting copper sleeve (742) is fixedly connected to the module mounting seat (71); the limiting rotary block (741) and the limiting copper sleeve (742) are rotationally connected via the torsion spring (743); and in a default state, a part of the limiting rotary block (741) abuts against 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 drive assembly (6) includes 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 the key; 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 testing structure according to claim 6, wherein: The elastic pressing assembly (65) includes an elastic mounting block, a pressing spring (652), a spring stopper (653) and an elastic pressing rod (654); The elastic mounting block is fixedly connected to the fixed slider (64) by fasteners. The elastic mounting block 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). The 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 testing structure according to claim 7, wherein: The axial cross-section of the elastic pressure rod (654) is in a "T"-shaped structure, and a floating sink hole (656) is provided at one end of the sliding hole (655) facing the spring stopper (653) to prevent the elastic pressure rod (654) from falling out.

9. The bidirectional force test structure according to claim 1, 2, 3, 4 or 5, characterized in that: The push DOCK drive assembly (8) 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), and 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 mounting 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) is clamped with the clamping groove (851).

10. The bidirectional force testing structure according to claim 9, wherein: 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).

Citation Information

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