A flexible flat cable positioning and testing fixture

Abstract

The present invention aims to provide a flexible cable positioning and testing fixture with a simple and compact structure, compatible with various specifications of products and high testing efficiency. The present invention includes a flexible cable, which includes an integrally formed first connecting portion, a bending portion, and a second connecting portion. The flexible cable positioning and testing fixture includes a pressing plate module, a carrier plate module, and a supporting floating module arranged from top to bottom. The carrier plate module includes a plurality of carrier plate components, and a profiling groove adapted to the flexible cable is formed on the carrier plate components. A first positioning component is arranged at the outer side end of the profiling groove for the first connecting portion, and a second positioning component is arranged at the outer side end of the profiling groove for the second connecting portion. Under the pressing of the pressing plate module, both the second positioning component and the first positioning component move horizontally to position the second connecting portion and the first connecting portion respectively. The present invention is applied to the technical field of flexible cable testing.

Description

Technical Field

[0001] The present invention is applied to the technical field of flexible cable testing, and particularly relates to a flexible cable positioning and testing fixture. Background Art

[0002] A flexible cable is a component for signal transmission, which has advantages such as high reliability and excellent flexibility. Therefore, it is widely used in electronic products. The flexible cable is used in combination with a connector to transmit signals from one end to the other end to achieve the purpose of signal transmission. Before leaving the factory, the flexible cable needs to undergo a series of tests. The positioning and testing fixture is mainly used for the positioning and testing of the flexible cable. At present, most of the positioning and testing fixtures on the market use a profiling groove adapted to the flexible cable for positioning. For example, the Chinese patent with the publication number CN214721272U discloses a flexible cable welding positioning device that positions the flexible cable through a deep groove. Due to the manufacturing tolerance of the product, it is difficult for the profiling groove to adapt to products with different tolerances, thus affecting the positioning accuracy and resulting in inaccurate test or welding results. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a flexible cable positioning and testing fixture with a simple and compact structure, compatible with multiple specifications of products, and high testing efficiency.

[0004] The technical solution adopted by the present invention is as follows: The present invention includes a flexible cable, and the flexible cable includes an integrally formed first connection part, a bending part, and a second connection part. The flexible cable positioning and testing fixture includes a pressing plate module, a carrier plate module, and a support floating module arranged from top to bottom. The carrier plate module includes a plurality of carrier plate components, and a profiling groove adapted to the flexible cable is formed on the carrier plate component. A first positioning component is arranged at the outer side end of the profiling groove for the first connection part, and a second positioning component is arranged at the outer side end of the profiling groove for the second connection part. Under the pressing of the pressing plate module, both the second positioning component and the first positioning component move horizontally to position the second connection part and the first connection part respectively.

[0005] As can be seen from the above solution, the profiling groove is used to install the flexible flat cable, and the support floating module is used to support and position the carrier board module. Taking the length direction of the first connecting portion as the Y-axis direction and the length direction of the second connecting portion as the X-axis direction, both the first positioning component and the second positioning component are spring telescopic structures. The pressing plate module presses on the upper end of the carrier board module to achieve the Z-axis direction positioning of the flexible flat cable. The vertical movement of the pressing plate module is converted into the horizontal movement of the second positioning component and the first positioning component, so that the second positioning component and the first positioning component respectively position the second connecting portion and the first connecting portion, realizing the X-axis and Y-axis direction positioning of the flexible flat cable. The flexible flat cable is clamped and positioned in a three-dimensional manner, compatible with various specifications of products, adapting to different tolerances of products. The overall structure is simple and compact. The number of groups of the carrier board assembly is twelve, and twelve flexible flat cables can be positioned at one time, laying a foundation for the next high-efficiency test.

[0006] A preferred solution is that a connector is provided at the bottom end of the first connecting portion, and a contact is provided at the side end of the second connecting portion. The support floating module includes a plurality of test components, and the test components are in through-fit with the carrier board assembly. The test component includes an interface and a probe assembly. The interface is in plug-in fit with the connector to supply power to the flexible flat cable, and the probe assembly is in contact fit with the contact to transmit signals to the flexible flat cable.

[0007] A preferred solution is that the pressing plate module includes a plurality of pressing components, and the pressing components are in through-fit with the carrier board assembly. The pressing component includes a mounting plate, and the mounting plate is provided with a first pressing block, a second pressing block, a third pressing block and a fourth pressing block in a penetrating manner. A first fixing block is provided at the upper end of each pressing block, and the first fixing block is fixed on the mounting plate. A first compression spring and a first equal-height screw are connected between the first fixing block and each pressing block. The first pressing block is in pressing fit with the connector, the second pressing block is in transmission fit with the first positioning component, the third pressing block is in transmission fit with the second positioning component, and the fourth pressing block is in pressing fit with the top end of the flexible flat cable.

[0008] A preferred solution is that the second positioning assembly and the first positioning assembly both include a first mounting block, a second fixed block, a pushing block and a clamping block, the first mounting block is provided with a groove, the pushing block slides in the horizontal direction on the groove, the clamping block is arranged at one end of the pushing block, the second fixed block is fixed on the first mounting block, the second fixed block is located at the upper end of the pushing block, a second compression spring is connected between the end of the pushing block away from the clamping block and the second fixed block, when the second pressing block and the third pressing block simultaneously push the pushing block forward, the clamping block of the second positioning assembly is positioned and matched with the second connecting portion, and the clamping block of the first positioning assembly is positioned and matched with the first connecting portion.

[0009] A preferred solution is that the supporting floating module also includes a supporting frame, a driving cylinder and a transmission frame, the driving cylinder is arranged at the bottom end of the supporting frame, the transmission frame is transmission-connected to the output end of the driving cylinder, the transmission frame is slidingly arranged at the bottom end of the supporting frame along a horizontal direction, a plurality of the probe assemblies are arranged on the transmission frame, and a plurality of the interfaces are arranged on the supporting frame.

[0010] A preferred solution is that the probe assembly includes a bracket, on which a second mounting block, the PCB board and a plurality of metal probes are arranged in sequence in a horizontal direction, a third compression spring and a second equal-height screw are arranged between the bracket and the second mounting block, a plurality of the metal probes are electrically connected to the PCB board, a terminal row is arranged at the bottom end of the PCB board, and when the probe assembly is driven by the driving cylinder, the plurality of the metal probes contact and cooperate with the contacts.

[0011] A preferred solution is that a lifting plate is provided on the support frame, and a plurality of fourth compression springs and third equal-height screws are connected between the lifting plate and the support frame.

[0012] A preferred solution is that a position sensor is provided on the support frame, and a sensing sheet is provided on the lifting plate, and the sensing sheet cooperates with an electrical signal of the position sensor.

[0013] A preferred solution is that guide pins are provided at the bottom end of the mounting plate and the top end of the lifting plate, and guide holes matching the guide pins are provided on the carrier plate module.

[0014] A preferred solution is that the mounting plate is provided with an avoidance groove, and the avoidance groove is provided with a temperature sensor, and when the pressing plate module is pressed, the temperature sensor and the flexible flat cable are inductively matched. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 is a schematic three-dimensional structure diagram of the carrier board module;

[0017] Figure 3 is a schematic three-dimensional structure diagram of the second positioning component;

[0018] Figure 4 is a schematic three-dimensional structure diagram of the first positioning component;

[0019] Figure 5 is a schematic exploded three-dimensional structure diagram of the flexible cable;

[0020] Figure 6 is a schematic three-dimensional structure diagram of the pressing component;

[0021] Figure 7 is a schematic exploded three-dimensional structure diagram of the pressing component;

[0022] Figure 8 is a schematic three-dimensional structure diagram of the probe component;

[0023] Figure 9 is a schematic three-dimensional structure diagram of the support floating module. Detailed implementation mode

[0024] As Figure 1 and Figure 5 shown, in this embodiment, the present invention includes a flexible cable 1 having a Z-shaped structure. The flexible cable 1 includes an integrally formed first connection portion 2, a bending portion 3, and a second connection portion 4. The flexible cable positioning and testing fixture includes a pressing plate module 7, a carrier board module 8, and a support floating module 9 arranged from top to bottom. The carrier board module 8 includes a plurality of carrier board components 10. A profiling groove 11 adapted to the flexible cable 1 is formed on the carrier board component 10. A first positioning component 13 is arranged at the outer end of the profiling groove 11 for the first connection portion 2, and a second positioning component 12 is arranged at the outer end of the profiling groove 11 for the second connection portion 4. Under the pressing of the pressing plate module 7, both the second positioning component 12 and the first positioning component 13 move in the horizontal direction to respectively position the second connection portion 4 and the first connection portion 2. An operator or a manipulator places the flexible cable 1 correspondingly in the profiling groove 11, and an external driving mechanism presses the pressing plate module 7 downward. The vertical movement of the pressing plate module 7 is converted into the horizontal movement of the second positioning component 12 and the first positioning component 13, driving the second positioning component 12 and the first positioning component 13 to move in the horizontal direction, realizing the positioning of the flexible cable in the X-axis, Y-axis, and Z-axis directions.

[0025] As Figure 5 、 Figure 8 andFigure 9 As shown, in this embodiment, a connector 5 is provided at the bottom end of the first connection portion 2, and a contact 6 is provided at the side end of the second connection portion 4. The support floating module 9 includes a plurality of test components 17, and the test components 17 are in through-fit with the carrier board assembly 10. The test component 17 includes an interface 14 and a probe assembly 15. The interface 14 is in plug-in fit with the connector 5 to supply power to the flexible cable 1, and the probe assembly 15 is in contact fit with the contact 6 to transmit signals to the flexible cable 1. The interface 14 is electrically connected to an external power source to supply voltage to the flexible cable 1, and the probe assembly 15 is connected to an external testing machine. The external testing machine conducts signals to the flexible cable 1 through the probe assembly 15, thereby obtaining the incoming material information of the flexible cable 1.

[0026] As Figure 6 、 Figure 7 As shown, in this embodiment, the pressing plate module 7 includes a plurality of pressing components 16, and the pressing components 16 are in through-fit with the carrier board assembly 10. The pressing component 16 includes a mounting plate 71. The mounting plate 71 is provided with a first pressing block 161, a second pressing block 162, a third pressing block 163, and a fourth pressing block 164 in a penetrating manner. A first fixing block 72 is provided at the upper end of each pressing block. The first fixing block 72 is fixed on the mounting plate 71. A first compression spring 73 and a first equal-height screw 74 are connected between the first fixing block 72 and each pressing block. The first pressing block 161 is in pressing fit with the connector 5, the second pressing block 162 is in transmission fit with the first positioning component 13, the third pressing block 163 is in transmission fit with the second positioning component 12, and the fourth pressing block 164 is in pressing fit with the top end of the flexible cable 1. A first compression spring 73 and a first equal-height screw 74 are connected between the first fixing block 72 and each pressing block, making each pressing block more flexible during the downward pressing process. When the pressing plate module 7 presses downward, the first pressing block 161 presses the connector 5, so that the connector 5 is electrically connected to the interface 14. The second pressing block 162 drives the first positioning component 13 to move forward to press and position the first connection portion 2. The third pressing block 163 drives the second positioning component 12 to move forward to press and position the second connection portion 4. The fourth pressing block 164 is in pressing fit with the top end of the flexible cable 1 to realize the positioning of the flexible cable 1 in the Z-axis direction.

[0027] As Figure 3 、 Figure 4As shown, in this embodiment, both the second positioning component 12 and the first positioning component 13 include a first mounting block 121, a second fixing block 122, a pushing block 123, and a clamping block 124. The first mounting block 121 is provided with a groove. The pushing block 123 slides horizontally on the groove. The clamping block 124 is arranged at one end of the pushing block 123. The second fixing block 122 is fixed on the first mounting block 121. The second fixing block 122 is located above the pushing block 123. A second compression spring 125 is connected between one end of the pushing block 123 far from the clamping block 124 and the second fixing block 122. When the second pressing block 162 and the third pressing block 163 push the pushing block 123 forward simultaneously, the clamping block 124 of the second positioning component 12 is in positioning cooperation with the second connecting portion 4, and the clamping block 124 of the first positioning component 13 is in positioning cooperation with the first connecting portion 2.

[0028] The vertical movement of the second pressing block 162 and the third pressing block 163 is converted into the horizontal movement of the pushing block 123. The clamping block 124 of the second positioning component 12 abuts against the second connecting portion 4, and the clamping block 124 of the first positioning component 13 abuts against the first connecting portion 2. The second compression spring 125 is used for the reset of the pushing block 123.

[0029] As Figure 9 As shown, in this embodiment, the support floating module 9 further includes a support frame 91, a driving cylinder 92, and a transmission frame 93. The driving cylinder 92 is arranged at the bottom end of the support frame 91. The transmission frame 93 is in transmission connection with the output end of the driving cylinder 92. The transmission frame 93 is slidably arranged horizontally at the bottom end of the support frame 91. A plurality of probe components 15 are arranged on the transmission frame 93, and a plurality of interfaces 14 are arranged on the support frame 91. The driving cylinder 92 drives the transmission frame 93 to slide horizontally, driving the probe components 15 to be in contact conduction with the flexible cable 1 to realize signal transmission.

[0030] As Figure 8As shown, in this embodiment, the probe assembly 15 includes a bracket 151. Along the horizontal direction on the bracket 151, a second mounting block 152, the PCB board 153, and a plurality of metal probes 154 are sequentially arranged. Between the bracket 151 and the second mounting block 152, a third compression spring 155 and a second equal-height screw 156 are provided. The plurality of metal probes 154 are electrically connected to the PCB board 153. At the bottom end of the PCB board 153, a terminal block 157 is provided. Driven by the driving cylinder 92, the probe assembly 15 makes the plurality of metal probes 154 contact and cooperate with the contacts 6. The PCB board 153 is connected to an external testing machine through the terminal block 157. The metal probes 154 are used for signal transmission. The cooperation of the third compression spring 155 and the second equal-height screw 156 makes the metal probes 154 more flexible during the contact conduction process, avoiding hard pressing of the metal probes 15 and causing damage to the structure of the metal probes 15.

[0031] As Figure 9 shown, in this embodiment, a lifting plate 94 is provided on the support frame 91. Between the lifting plate 94 and the support frame 91, a plurality of fourth compression springs 95 and third equal-height screws 96 are connected. The lifting plate 94 is used to detect the pressing depth of the carrier module 8 and determine whether the carrier module 8 has moved in place. The fourth compression springs 95 play a buffering role in the movement of the lifting plate 94, and the third equal-height screws 96 limit the lifting height of the lifting plate 94.

[0032] As Figure 1 shown, in this embodiment, a position sensor 97 is provided on the support frame 91, and an induction sheet 98 is provided on the lifting plate 94. The induction sheet 98 is in electrical signal cooperation with the position sensor 97. The position sensor 97 is used to detect the lifting height of the lifting plate 94, and then control whether the carrier module 8 continues to press, laying a foundation for the next testing process.

[0033] As Figure 1 shown, in this embodiment, guide pins 18 are provided at the bottom end of the mounting plate 71 and the top end of the lifting plate 94. Guide holes 19 adapted to the guide pins 18 are formed on the carrier module 8. The guide pins 18 are inserted into the guide holes 19 in an inserted manner to realize the positioning of the bottom end of the mounting plate 71 and the lifting plate 94.

[0034] As Figure 7As shown, in this embodiment, the mounting plate 71 is provided with an avoidance groove 75, and a temperature sensor 76 is arranged in the avoidance groove 75. When the pressing plate module 7 presses, the temperature sensor 76 is in inductive cooperation with the flexible cable 1. The temperature sensor 76 is used to monitor the ambient temperature of the flexible cable 1 in real time.

[0035] The working principle of the present invention: An operator or a manipulator places the twelve groups of the flexible cables correspondingly in the profiling grooves, and an external driving mechanism presses the pressing plate module downward. The first pressing block presses the connector, and the connector is electrically connected to the interface. The second pressing block drives the first positioning component to move forward to press and position the first connecting portion. The third pressing block drives the second positioning component to move forward to press and position the second connecting portion. The fourth pressing block is in pressing cooperation with the top end of the flexible cable. The driving cylinder drives the transmission frame to slide horizontally, driving the metal probe to contact the contact point, realizing the positioning test of the flexible cable.

Claims

1. A flexible cable positioning and testing fixture, comprising a flexible cable (1), wherein the flexible cable (1) includes an integrally formed first connecting portion (2), a bending portion (3), and a second connecting portion (4), and is characterized in that: The flexible cable positioning and testing fixture includes a pressing plate module (7), a carrier plate module (8), and a supporting floating module (9) arranged from top to bottom. The carrier plate module (8) includes a plurality of carrier plate components (10). The carrier plate component (10) is provided with a profiling groove (11) adapted to the flexible cable (1). A first positioning component (13) is arranged at the outer end of the profiling groove (11) of the first connecting portion (2), and a second positioning component (12) is arranged at the outer end of the profiling groove (11) of the second connecting portion (4). Under the pressing of the pressing plate module (7), both the second positioning component (12) and the first positioning component (13) move horizontally to position the second connecting portion (4) and the first connecting portion (2) respectively; A connector (5) is arranged at the bottom end of the first connecting portion (2), and a contact (6) is arranged at the side end of the second connecting portion (4). The supporting floating module (9) includes a plurality of testing components (17). The testing components (17) are in through-fit cooperation with the carrier plate components (10). The testing component (17) includes an interface (14) and a probe component (15). The interface (14) is in plug-in cooperation with the connector (5) to supply power to the flexible cable (1), and the probe component (15) is in contact cooperation with the contact (6) to transmit signals to the flexible cable (1); The pressing plate module (7) includes a plurality of pressing components (16). The pressing components (16) are in through-fit cooperation with the carrier plate components (10). The pressing component (16) includes a mounting plate (71). The mounting plate (71) is provided with a first pressing block (161), a second pressing block (162), a third pressing block (163), and a fourth pressing block (164) in a penetrating manner. A first fixing block (72) is arranged at the upper end of each pressing block. The first fixing block (72) is fixed on the mounting plate (71). A first compression spring (73) and a first equal-height screw (74) are connected between the first fixing block (72) and each pressing block. The first pressing block (161) is in pressing cooperation with the connector (5), the second pressing block (162) is in transmission cooperation with the first positioning component (13), the third pressing block (163) is in transmission cooperation with the second positioning component (12), and the fourth pressing block (164) is in pressing cooperation with the top end of the flexible cable (1).

2. The soft flexible cable positioning and testing fixture according to claim 1, wherein: The second positioning component (12) and the first positioning component (13) both include a first mounting block (121), a second fixing block (122), a pushing block (123), and a clamping block (124). The first mounting block (121) is provided with a groove, the pushing block (123) slides horizontally on the groove, the clamping block (124) is arranged at one end of the pushing block (123), the second fixing block (122) is fixed on the first mounting block (121), the second fixing block (122) is located above the pushing block (123), and a second compression spring (125) is connected between one end of the pushing block (123) far from the clamping block (124) and the second fixing block (122). When the second pressing block (162) and the third pressing block (163) simultaneously push the pushing block (123) forward, the clamping block (124) of the second positioning component (12) is in positioning cooperation with the second connecting portion (4), and the clamping block (124) of the first positioning component (13) is in positioning cooperation with the first connecting portion (2).

3. The soft flexible cable positioning and testing fixture according to claim 1, characterized in that: The support floating module (9) further includes a support frame (91), a driving cylinder (92), and a transmission frame (93). The driving cylinder (92) is arranged at the bottom end of the support frame (91), the transmission frame (93) is in transmission connection with the output end of the driving cylinder (92), the transmission frame (93) is slidably arranged horizontally at the bottom end of the support frame (91), a plurality of probe components (15) are arranged on the transmission frame (93), and a plurality of interfaces (14) are arranged on the support frame (91).

4. The soft cable positioning and testing fixture according to claim 3, wherein: The probe component (15) includes a bracket (151), on which a second mounting block (152), a PCB board (153), and a plurality of metal probes (154) are arranged in sequence horizontally. A third compression spring (155) and a second equal-height screw (156) are arranged between the bracket (151) and the second mounting block (152). A plurality of the metal probes (154) are electrically connected to the PCB board (153). A terminal block (157) is arranged at the bottom end of the PCB board (153). Driven by the driving cylinder (92), a plurality of the metal probes (154) of the probe component (15) are in contact and cooperation with the contacts (6).

5. The soft flexible cable positioning and testing fixture according to claim 4, wherein: An elevating plate (94) is arranged on the support frame (91), and a plurality of fourth compression springs (95) and third equal-height screws (96) are connected between the elevating plate (94) and the support frame (91).

6. The soft flexible cable positioning and testing fixture according to claim 5, wherein: A position sensor (97) is arranged on the support frame (91), and an induction sheet (98) is arranged on the elevating plate (94). The induction sheet (98) is in electrical signal cooperation with the position sensor (97).

7. The soft flexible cable positioning and testing fixture according to claim 5, wherein: Guide pins (18) are arranged at the bottom end of the mounting plate (71) and the top end of the elevating plate (94), and guide holes (19) adapted to the guide pins (18) are formed on the carrier plate module (8).

8. A flexible cable positioning and testing fixture according to claim 1, wherein: The mounting plate (71) is provided with an avoidance groove (75), and a temperature sensor (76) is arranged in the avoidance groove (75). When the pressing plate module (7) presses, the temperature sensor (76) is inductively matched with the flexible cable (1).

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