A vertically liftable crimping mechanism

Abstract

The application discloses a vertical lifting crimping mechanism and belongs to the field of display panel testing.The crimping mechanism comprises a carrier plate and a crimping piece;the carrier plate is provided with a first through hole for accommodating a switching probe module on a machine table;the crimping piece comprises a die core mounting plate, a PCB and a lead-through probe module;the die core mounting plate is provided with a second through hole;the PCB is located above the die core mounting plate;the PCB is provided with a plurality of switching test points;the plurality of switching test points, the second through hole and the first through hole are sequentially and oppositely arranged in a first direction;the lead-through probe module is inserted and mounted on the die core mounting plate;one lead-through part of the lead-through probe module is in lead-through connection with the PCB;another lead-through part of the lead-through probe module is used for crimping lead-through connection with a connector of a display panel;an elastic piece is clamped between the die core mounting plate and the carrier plate.The vertical lifting crimping mechanism provided by the application can greatly reduce the testing cost and the transmission loss in the signal switching process.

Description

Technical Field

[0001] This invention belongs to the field of display panel testing, and specifically relates to a pressing mechanism that can be vertically lifted and lowered. Background Technology

[0002] With the continuous advancement of technology, display panels have developed rapidly in today's society and are widely used in mobile phones, computers, and televisions. To ensure the lifespan of products such as mobile phones, VR glasses, and computer screens, a series of performance tests are required on the display panels.

[0003] In related technologies, for top-contact crimping (where the pads of the connector on the display panel face upwards), both the flip cover and the base of the crimping mechanism are equipped with PCB boards. The two PCB boards are connected by a ribbon cable. The flip cover also has a conductive probe module for PCB board connection. During connection, the PCB board on the base is first crimped and connected to the adapter probe module on the machine. Then, the cover is closed, allowing the conductive probe module to connect with the connector on the display panel, thereby ultimately lighting up the display panel.

[0004] However, the aforementioned crimping mechanism requires two PCB boards and ribbon cables for conduction, which not only increases testing costs but also leads to significant signal transmission loss. Summary of the Invention

[0005] In view of the above-mentioned defects or improvement needs of the existing technology, the present invention provides a vertically lifting crimping mechanism, which aims to not only greatly reduce testing costs, but also reduce transmission loss during signal conversion.

[0006] To achieve the above objectives, the present invention provides a vertically lifting and lowering pressing mechanism, the pressing mechanism comprising a carrier plate and a pressing component;

[0007] The carrier plate has a first through hole for accommodating the transfer probe module on the machine platform;

[0008] The crimping component includes a core mounting plate, a PCB board, and a continuity probe module. The core mounting plate has a second through hole for accommodating the transition probe module on the machine platform. The PCB board is located above the core mounting plate and has multiple transition test points. The multiple transition test points, the second through hole, and the first through hole are arranged sequentially opposite to each other in a first direction. The continuity probe module is inserted into the core mounting plate, and one conductive part of the continuity probe module is conductive to the PCB board. The other conductive part of the continuity probe module is used for crimping and conductive connection with the connector of the display panel. An elastic element is sandwiched between the core mounting plate and the carrier plate to make the core mounting plate and the carrier plate spaced apart.

[0009] Optionally, the carrier plate is fitted with a plurality of spaced guide rods, each of which extends along a first direction, and the mold core mounting plate is fitted with a plurality of spaced linear bearings, each of which is slidably inserted into a corresponding linear bearing.

[0010] Optionally, a limiting head is provided at the end of each guide rod facing away from the carrier plate. The outer diameter of the limiting head is larger than the inner diameter of the linear bearing, and the limiting head is used to limit the position of the mold core mounting plate.

[0011] Optionally, the carrier plate has a plurality of spaced hooks hinged to its side, and the mold core mounting plate has a plurality of grooves on its side, with each hook movably hooked into the corresponding groove.

[0012] Optionally, a spring is provided between the end of each hook facing away from the groove and the carrier plate.

[0013] Optionally, the pressing mechanism further includes a cover plate, the cover plate, the PCB board and the mold core mounting plate are stacked in sequence, and a plurality of connecting bolts are inserted into the cover plate to connect the mold core mounting plate.

[0014] Optionally, the carrier plate has a positioning groove for inserting a display panel.

[0015] Optionally, two spaced-apart positioning blocks are detachably inserted into the positioning slot, forming an accommodating space between the two positioning blocks for inserting a display panel.

[0016] Optionally, the carrier plate has a plurality of spaced positioning holes, each positioning hole having a positioning bushing inserted therein, and each positioning bushing being fitted onto a corresponding positioning rod on the machine tool.

[0017] Optionally, the carrier plate has multiple spaced arc-shaped transfer notches on its opposite sides, each of which is used to insert a corresponding guide wheel into the robotic arm.

[0018] The aforementioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0019] In summary, the beneficial effects of the above-described technical solutions conceived by this invention compared with the prior art include:

[0020] In the vertically lifting and lowering crimping mechanism provided in this embodiment of the invention, when performing a lighting test on a display panel, firstly, a carrier plate is placed on a machine platform. At this time, the adapter probe module on the machine platform is located in the first through hole of the carrier plate, and the adapter probe module extends out of the first through hole. Next, the display panel is placed on the carrier plate, with the connector of the display panel located directly below the conduction probe module. Due to the elastic force generated by the elastic element, the mold core mounting plate is spaced apart from the carrier plate, and the mold core mounting plate is located above the carrier plate. Then, the mold core mounting plate is pressed vertically, and the mold core mounting plate descends against the pressure of the elastic element. On one hand, the mold core mounting plate drives the conduction probe module to move downward, and after the other conductive part of the conduction probe module moves downward, it crimps and conducts with the connector of the display panel (one conductive part of the conduction probe module is conductive with the PCB board). On the other hand, the mold core mounting plate simultaneously moves the PCB board downwards, causing multiple transition test points on the PCB board to be pressed and connected with the transition probe module on the machine (i.e., the transition probe module passes through the second through hole and is pressed and connected with multiple transition test points on the PCB board). Based on this, by providing an electrical signal to the transition probe module on the machine, this signal passes through the transition test points, the PCB board, and the connecting probe module, ultimately illuminating the display panel. Furthermore, in terms of illumination control, a single PCB board can simultaneously achieve connection with both the display panel and the machine's transition probe module, eliminating the need for two PCB boards and cables. This significantly reduces testing costs and signal transmission losses during the transition process.

[0021] In other words, the vertically lifting crimping mechanism provided in this embodiment of the invention can not only greatly reduce testing costs, but also reduce transmission loss during signal conversion. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a vertically lifting and lowering pressing mechanism provided in an embodiment of the present invention;

[0023] Figure 2 This is an exploded view of a vertically lifting and lowering pressing mechanism provided in an embodiment of the present invention;

[0024] Figure 3 This is a first view of the carrier plate provided in an embodiment of the present invention;

[0025] Figure 4 This is a second view of the carrier plate provided in an embodiment of the present invention.

[0026] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0027] 1. Carrier plate; 11. First through hole; 12. Guide rod; 121. Limiting head; 13. Hook; 14. Positioning groove; 15. Positioning block; 16. Positioning hole; 17. Positioning bushing; 18. Arc-shaped transfer notch; 19. Alternating hole; 2. Press-fit component; 21. Mold core mounting plate; 211. Second through hole; 212. Linear bearing; 213. Groove; 22. PCB board; 23. Conductive probe module; 24. Elastic component; 3. Cover plate; 100. Display panel. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] Example:

[0034] Figure 1 This is a schematic diagram of a vertically lifting and lowering pressing mechanism provided in an embodiment of the present invention. Figure 2 This is an exploded view of a vertically lifting and lowering pressing mechanism provided in an embodiment of the present invention, combined with... Figure 1 and Figure 2 As shown, the crimping mechanism includes a carrier plate 1 and a crimping component 2.

[0035] The carrier plate 1 has a first through hole 11 for accommodating the transfer probe module on the machine platform.

[0036] The crimping component 2 includes a core mounting plate 21, a PCB board 22, and a conductive probe module 23. The core mounting plate 21 has a second through hole 211 for accommodating the transfer probe module on the machine. The PCB board 22 is located above the core mounting plate 21 and has multiple transfer test points. The multiple transfer test points, the second through hole 211, and the first through hole 11 are arranged sequentially opposite to each other in a first direction (i.e., the direction perpendicular to the carrier plate 1). The conductive probe module 23 is inserted into the core mounting plate 21, and one conductive part of the conductive probe module 23 (i.e., the top end of multiple spring probes) is conductive to the PCB board 22. The other conductive part of the conductive probe module 23 (i.e., the bottom end of multiple spring probes) is used for crimping and conductive to the connector of the display panel 100. An elastic element 24 is sandwiched between the core mounting plate 21 and the carrier plate 1 to make the core mounting plate 21 and the carrier plate 1 spaced apart.

[0037] For the vertically lifting and lowering crimping mechanism provided in this embodiment of the invention, when performing a lighting test on the display panel 100, firstly, the carrier plate 1 is placed on the machine platform. At this time, the adapter probe module on the machine platform is located in the first through hole 11 of the carrier plate 1, and the adapter probe module extends out of the first through hole 11. Next, the display panel 100 (with the connector of the display panel 100 facing upwards) is placed on the carrier plate 1, and the connector of the display panel 100 is located directly below the conduction probe module 23. Due to the elastic force generated by the elastic member 24, the mold core mounting plate 21 is spaced apart from the carrier plate 1, and the mold core mounting plate 21 is located above the carrier plate 1. Then, the mold core mounting plate 21 is pressed vertically, and the mold core mounting plate 21 descends against the pressure of the elastic member 24. On one hand, the mold core mounting plate 21 drives the conduction probe module 23 to move downwards, and after the other conductive part of the conduction probe module 23 moves downwards, it is crimped and connected with the connector of the display panel 100 (one conductive part of the conduction probe module 23 is connected to the PCB board 22). On the other hand, the mold core mounting plate 21 simultaneously drives the PCB board 22 to move downwards, so that the multiple transition test points on the PCB board 22, after moving downwards, are precisely pressed and connected with the transition probe module on the machine (i.e., the transition probe module passes through the second through hole 211 and is pressed and connected with the multiple transition test points on the PCB board 22). Based on this, by providing an electrical signal to the transition probe module on the machine, this electrical signal passes through the transition test points, the PCB board 22, and the connection probe module 23, thereby ultimately lighting up the display panel 100. Furthermore, in terms of lighting control, only a single PCB board 22 is needed to simultaneously achieve connection between it and the transition probe module of the display panel 100 and the machine, eliminating the need for two PCB boards and ribbon cables. This not only greatly reduces testing costs but also reduces transmission loss during signal conversion.

[0038] In other words, the vertically lifting crimping mechanism provided in this embodiment of the invention can not only greatly reduce testing costs, but also reduce transmission loss during signal conversion.

[0039] In addition, this crimping mechanism achieves crimping conduction through vertical lifting, which can effectively reduce the space occupied by the crimping component 2 during crimping compared to the flip-type crimping, thereby improving the integration of this crimping mechanism.

[0040] For example, the elastic element 24 can be a spring, and the number of springs can be 4-6, evenly sandwiched between the mold core mounting plate 21 and the carrier plate 1. After the test is completed, after the downward pressure on the PCB board 22 is removed, the spring will extend, and the restoring force generated will drive the mold core mounting plate 21 and the PCB board 22 to move upward, thereby separating the continuity probe module 23 from the connector of the display panel 100, and also separating the transfer test point from the transfer probe module on the machine, realizing a circuit break. At this time, the display panel 100 or the crimping mechanism can be removed to prepare for the next crimping.

[0041] See also Figure 1 and Figure 2 Multiple guide rods 12 are inserted into the carrier plate 1 at intervals, and each guide rod 12 extends along a first direction. Multiple linear bearings 212 are inserted into the mold core mounting plate 21 at intervals, and each guide rod 12 is slidably inserted into the corresponding linear bearing 212.

[0042] In the above embodiment, the guide rod 12 can slide relative to the linear bearing 212, which can not only reduce friction, but also guide the core mounting plate 21 when it descends, ensuring the accuracy of the conductive probe module 23 and the transfer test point when they move down.

[0043] For example, the number of guide rods 12 can be four, located at four right-angle positions on the mold core mounting plate 21.

[0044] Furthermore, each guide rod 12 is provided with a limiting head 121 at the end facing away from the carrier plate 1. The outer diameter of the limiting head 121 is larger than the inner diameter of the linear bearing 212, and the limiting head 121 is used to limit the mold core mounting plate 21. The limiting head 121 can limit the upward movement of the mold core mounting plate 21, preventing the mold core mounting plate 21 from being bounced away by the elastic element 24.

[0045] In this embodiment, a plurality of spaced hooks 13 are hinged to the side of the carrier plate 1, and a plurality of grooves 213 are provided on the side of the mold core mounting plate 21, and each hook 13 is movably hooked into the corresponding groove 213.

[0046] It is easy to understand that when the mold core mounting plate 21 is pressed down and moved down to be in contact with the carrier plate 1, it can be hooked into the corresponding groove 213 by the hook 13, so that the mold core mounting plate 21 can be kept in a pressed state, that is, the display panel 100 can be kept in a conductive state, so as to carry out relevant tests and avoid using external force or other tools to press the mold core mounting plate 21 for a long time.

[0047] In addition, the hook 13 can also be used to fix the mold core mounting plate 21 during transportation, so as to prevent the mold core mounting plate 21 from floating up and down under the action of the elastic element 24.

[0048] For example, the side of the carrier plate 1 has multiple notches, each notch is fitted with a pivot, and each hook 13 is rotatably sleeved on the corresponding pivot.

[0049] Furthermore, a spring is provided between the end of each hook 13 facing away from the groove 213 and the carrier plate 1. The elastic force provided by the spring can maintain the hook 13's engagement with the mold core mounting plate 21, preventing the hook 13 from accidentally rotating and causing it to fail to fix the mold core mounting plate 21.

[0050] For example, there are two hooks 13, symmetrically arranged on both sides of the mold core mounting plate 21.

[0051] In one implementation of the present invention, the pressing mechanism further includes a cover plate 3, the cover plate 3, the PCB board 22 and the mold core mounting plate 21 are stacked in sequence, and the cover plate 3 is fitted with a plurality of connecting bolts to connect the mold core mounting plate 21.

[0052] In the above embodiment, the cover plate 3 can clamp the PCB board 22 and protect it. The connecting bolts can connect the cover plate 3, the PCB board 22 and the mold core mounting plate 21 to form a whole.

[0053] Figure 3 This is a first view of the carrier plate provided in an embodiment of the present invention, as shown below. Figure 3 As shown, the carrier plate 1 has a positioning groove 14, which is used to insert the display panel 100. The positioning groove 14 can position the display panel 100, thereby positioning its connector and ensuring that the conductive probe module 23 is accurately pressed into the connector after it moves down.

[0054] Furthermore, two spaced positioning blocks 15 are detachably inserted into the positioning groove 14, forming an accommodating space between the two positioning blocks 15 for inserting the display panel 100.

[0055] It is easy to understand that when it is necessary to press display panels 100 of different sizes, a positioning block 15 of the corresponding size is selected according to the size of the corresponding display panel 100, thereby forming an accommodating space of the corresponding size, and thus ultimately achieving the positioning of display panels 100 of different sizes.

[0056] For example, the positioning block 15 can be L-shaped, thereby forming a limit on at least three sides.

[0057] Figure 4 This is a second view of the carrier plate provided in an embodiment of the present invention, as shown below. Figure 4 As shown, the carrier plate 1 has a plurality of spaced positioning holes 16, and a positioning bushing 17 is inserted into each positioning hole 16. Each positioning bushing 17 is used to be fitted onto the corresponding positioning rod on the machine base.

[0058] In the above embodiment, the positioning bushing 17 is inserted into the positioning rod on the machine to achieve the positioning of the carrier plate 1, thereby ensuring that the adapter probe module is located in the first through hole 11 of the carrier plate 1, and preventing the adapter probe module from being crushed when the carrier plate 1 is placed on the machine.

[0059] In addition, the carrier plate 1 has multiple spaced arc-shaped transfer notches 18 on its opposite sides, each arc-shaped transfer notch 18 being used to insert the corresponding guide wheel on the robot arm. The arc-shaped transfer notch 18 can be inserted and fitted with the guide wheel on the robot arm, thereby realizing convenient clamping of the carrier plate 1, and then the robot arm can transfer the carrier plate 1 and the display panel 100 to the next workstation.

[0060] For example, the carrier plate 1 has a clearance hole 19, which corresponds to the QR code on the back of the display panel 100, so as to facilitate scanning and recording during transportation.

[0061] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A vertically liftable crimping mechanism, characterized by, The crimping mechanism comprises a carrier plate and a crimping piece; The carrier plate is provided with a first through hole for accommodating a probe module on a machine. The crimping piece comprises a mold core mounting plate, a PCB plate and a lead-through probe module, the mold core mounting plate is provided with a second through hole for accommodating a probe module on a machine, the PCB plate is located above the mold core mounting plate, the PCB plate is provided with a plurality of test points, the second through hole, the first through hole and the test points are arranged in sequence in a first direction, the lead-through probe module is inserted into the mold core mounting plate, one lead-through part of the lead-through probe module is in lead-through connection with the PCB plate, and the other lead-through part of the lead-through probe module is used for crimping lead-through connection with a connector of a display panel, and an elastic piece is arranged between the mold core mounting plate and the carrier plate, so that the mold core mounting plate and the PCB plate are lifted together relative to the carrier plate.

2. The vertically-liftable crimping mechanism of claim 1, wherein, A plurality of guide rods are arranged on the carrier plate in a spaced manner, and each guide rod extends in the first direction.

3. A vertically-liftable crimping mechanism according to claim 2, wherein Each guide rod is provided with a limiting head at an end away from the carrier plate, the limiting head has an outer diameter greater than an inner diameter of the linear bearing, and the limiting head is used for limiting the mold core mounting plate.

4. The vertically-liftable crimping mechanism of claim 1, wherein, A plurality of hooks are hingedly connected to side edges of the carrier plate in a spaced manner, and the mold core mounting plate is provided with a plurality of grooves in side edges thereof, and each hook is movably hooked in a corresponding groove.

5. A vertically-liftable crimping mechanism according to claim 4, wherein A spring is arranged between each hook and the carrier plate at an end of the hook away from the groove.

6. The vertically-liftable crimping mechanism of claim 1, wherein, The crimping mechanism further comprises a cover plate, the cover plate, the PCB plate and the mold core mounting plate are sequentially stacked, and a plurality of connecting bolts are inserted into the cover plate to connect the mold core mounting plate.

7. The vertically-liftable crimping mechanism of claim 1, wherein, The carrier plate is provided with a positioning groove, and the positioning groove is used for inserting a display panel.

8. A vertically-liftable crimping mechanism according to claim 7, wherein Two positioning blocks are detachably inserted into the positioning groove in a spaced manner, and a receiving space for inserting a display panel is formed between the two positioning blocks.

9. A vertically-liftable crimping mechanism according to any one of claims 1-8, characterized in that, The carrier plate is provided with a plurality of positioning holes arranged in a spaced manner, each positioning hole is provided with a positioning bushing, and each positioning bushing is used for sleeving a corresponding positioning rod on a machine.

10. The vertically-liftable crimping mechanism of any one of claims 1-8, wherein, The carrier plate is provided with a plurality of arc-shaped transfer notches arranged in a spaced manner on opposite side edges thereof, and each arc-shaped transfer notch is used for inserting a corresponding guide wheel of a mechanical hand.

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