Flexible printed circuit (FPC) nickel sheet electrical test module and test machine thereof

Abstract

The invention discloses a flexible FPC nickel sheet electrical test module and a test machine thereof, the flexible FPC nickel sheet electrical test module comprises a bearing driving assembly and a test assembly, and a support is provided with a first test channel and a second test channel in parallel at an interval; a bearing driving assembly and a testing assembly are arranged in the first testing channel and the second testing channel; the bearing driving assembly is arranged on the bracket; the mounting frame is of a U-shaped frame body structure with a downward opening, and concave mounting sliding grooves of strip-shaped structures are formed in the front side wall and the rear side wall of the mounting frame; the test assembly comprises a test support plate, a floating plate, a test part and a pre-pressing piece. Two-stage flexible connection of floating plate overall flexible support and test probe flexible connection of the test component is adopted, elastic contact between the test probe and the nickel sheet in the process of pressing down to contact the nickel sheet is achieved, bending deformation of the test probe in the pressing down contact process is effectively avoided, the test precision is improved, and the test efficiency is improved. And the test assembly is integrally mounted in a sideslip adjustable manner, so that the mounting position can be accurately adjusted while the detachable mounting is met.

Description

Technical Field

[0001] The invention relates to the field of flexible printed circuit board (FPC) manufacturing equipment, in particular to a flexible FPC nickel sheet electrical testing module and a testing machine thereof. Background Art

[0002] Flexible circuit boards, also known as "FPC soft boards", are printed circuit boards made of flexible insulating substrates. FPC can provide excellent electrical performance, meet the needs of smaller and higher density installation designs, and also help reduce assembly processes and enhance reliability. Flexible circuit boards FPC soft boards can be bent, wound, and folded freely, and can withstand millions of dynamic bends without damaging the wires. They can be arranged arbitrarily according to spatial layout requirements, and can be moved and stretched arbitrarily in three-dimensional space, thereby achieving the integration of component assembly and wire connection; and can greatly reduce the size and weight of electronic products, which is suitable for the development of electronic products towards high density, miniaturization, and high reliability.

[0003] There are multiple nickel sheets connected to the side of the flexible FPC strip for electrical connection, so that the flexible FPC can be connected to the circuit. In the manufacturing process of the flexible FPC, one of the processes involved is the nickel sheet electrical test. During the test, it is necessary to make electrical contact with the nickel sheet so as to connect it to the test circuit. By setting the test circuit simulation parameters, the various electrical properties of the nickel sheet and the flexible FPC can be tested. The nickel sheet electrical access test generally achieves circuit conduction by pressing the probe down to contact the nickel sheet placed on the platform. Based on the needle-like structure of the probe itself, during the process of pressing down to contact the nickel sheet, the probe is easily bent, deformed or broken after being subjected to the upward reaction, resulting in a change in the height of the probe, which causes the probe to be unable to contact the nickel sheet when it moves down to the same height during the next automatic test. In addition, it is generally necessary to test multiple nickel sheets on a single flexible FPC at the same time. For different flexible FPCs, the number of nickel sheets and the spacing between two adjacent nickel sheets are often different. Therefore, the test component used to contact the nickel sheets needs to be installed in a detachable manner so that different test components can be used for different flexible FPCs. At the same time, the position adjustment problem of the test component needs to be solved during the detachable assembly process to align the test component with the nickel sheet. Summary of the invention

[0004] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned prior art and provide a two-stage flexible connection that adopts an overall flexible support of a floating plate and a flexible connection of a test probe of a test component, thereby realizing elastic contact between the test probe and the nickel sheet during the process of pressing down to contact the nickel sheet, effectively avoiding bending and deformation of the test probe during the pressing down contact process, and improving the test accuracy. The test component as a whole adopts a side-sliding adjustable installation, which satisfies the requirements of a detachable installation while realizing a flexible FPC nickel sheet electrical test module and a test machine thereof for precise adjustment of the installation position.

[0005] The technical solution adopted by the present invention is as follows: a flexible FPC nickel sheet electrical test module is arranged in a flexible FPC testing machine, and is used to electrically contact the nickel sheet of the flexible FPC to complete the conduction of the test circuit, including a bracket mounted on the machine table, a bearing platform for bearing the flexible FPC is arranged below the bracket, and also includes a bearing drive component and a test component, wherein a first test channel and a second test channel are arranged in parallel and spaced apart on the bracket; a bearing drive component and a test component are arranged in the first test channel and the second test channel, and are respectively used to test two groups of flexible FPCs; the bearing drive component is arranged on the bracket, and outputs power in the vertical direction through the first test channel or the second test channel to drive its mounting frame to move up and down; the mounting frame is a U-shaped frame structure with an opening facing downward, and its front and rear sides are An installation slot with a concave strip structure is provided on the wall; the test assembly includes a test support plate, a floating plate, a test component and a pre-pressed piece, wherein the test support plate is horizontally and detachably inserted in the installation slot and fixed to the mounting frame by a locking piece; the floating plate includes at least two pieces, at least two floating plates are connected to the bottom of the test support plate and float freely in the vertical direction; the test component includes at least two groups, at least two groups of test components are arranged at intervals at the lower part of the floating plate, and are flexibly connected to the floating plate in the vertical direction, so as to contact the nickel sheet of the flexible FPC; the pre-pressed piece includes at least two pieces, at least two pre-pressed pieces are arranged at the bottom of the floating plate, and the height of the pre-pressed piece is greater than the height of the test component in the natural state, so as to contact and press the FPC belt body of the flexible FPC in advance during the test.

[0006] Preferably, the flexible FPC includes an FPC strip and a nickel sheet, wherein the FPC strip is a flexible strip with a strip structure; the nickel sheet includes at least two sheets, at least two nickel sheets are connected to the side of the FPC strip at intervals, and are connected to the internal circuit of the FPC strip; during the test, the flexible FPC is placed horizontally on the loading platform on the machine.

[0007] Preferably, the bearing drive assembly includes a support plate, a driving cylinder, a guide rod and a mounting frame, wherein the support plate is horizontally arranged on the bracket and covers the first test channel or the second test channel; the driving cylinder is vertically arranged on the support plate, and the output end extends vertically downward through the support plate; the mounting frame is horizontally arranged below the support plate and connected to the output end of the driving cylinder, and is driven by the driving cylinder to move up and down; the guide rods include at least two, at least two guide rods are vertically and movably inserted on the support plate, and the bottom ends of the guide rods are connected and fixed to the mounting frame, so as to guide and limit the position during the lifting and lowering movement of the mounting frame.

[0008] Preferably, the pre-pressing member comprises a pre-pressing block, which is a U-shaped block structure, and two sides of the bottom of the pre-pressing block form a pressing plane for pressing two sides of the FPC belt body.

[0009] Preferably, a light hole is opened on the floating plate in the vertical direction, and the light hole passes through the floating plate vertically, and a screw hole is opened on the test support plate in the vertical direction; the screw hole is aligned with the light hole vertically.

[0010] Preferably, the floating plate is connected to the lower part of the test support plate through a floating connector; the floating connector includes a floating spring and a screw, wherein the screw is inserted into the light hole from bottom to top, and passes through the light hole and is inserted into the screw hole; the screw moves freely in the light hole, and its upper end is threadedly connected to the screw hole, and the nut at its lower end extends to the outside of the light hole, and is used to support the floating plate, and the distance between the floating plate and the test support plate is controlled by controlling the depth of the screw entering the screw hole; the floating spring is sleeved on the screw, and the upper and lower ends of the floating spring respectively resist the test support plate and the floating plate, and provide elastic force when the floating plate receives an upward force.

[0011] Preferably, the test component includes a test seat, a test spring, a locking piece, a probe seat and a test probe, wherein the test seat is spaced apart at the lower part of the floating plate and connected to the floating plate through the test spring; the locking piece is inserted into the test seat from top to bottom and is movably connected to the test seat, the upper end of the locking piece is fixed on the floating seat, and the lower end resists and supports the test seat; the probe seat is arranged on the test seat; the test probe is inserted on the probe seat, and the upper and lower ends of the test probe extend to the outside of the probe seat and the test seat respectively, the upper end of the test probe is connected to the test circuit, and the lower end contacts with the nickel sheet so as to connect the nickel sheet to the test circuit.

[0012] Preferably, the locking member comprises a locking nut, which is inserted into the side wall of the mounting frame from the outside and inserted into the test support plate to lock and fix the test support plate to the mounting frame.

[0013] Preferably, the test assembly also includes guide columns and limit limit columns, wherein the guide columns include at least two, at least two of which are vertically arranged on the floating plate, and are used to be inserted into the guide holes of the load-bearing platform during the descent process for guiding and limiting; the limit limit columns include at least two, at least two of which are arranged on the floating plate, and the height is not higher than the height of the pre-pressed part, so as to support the load-bearing platform during the descent process and limit the descent height of the test component.

[0014] A testing machine comprising a flexible FPC nickel sheet electrical testing module.

[0015] The beneficial effects of the present invention are: In view of the defects and shortcomings of the prior art, the present invention independently develops and designs a two-stage flexible connection that adopts the overall flexible support of the floating plate and the flexible connection of the test probe of the test component, which realizes the elastic contact of the test probe with the nickel sheet during the process of pressing down to contact the nickel sheet, effectively avoids the bending deformation of the test probe during the pressing down contact process, improves the test accuracy, and the test component as a whole adopts a detachable and adjustable installation method to realize a flexible FPC nickel sheet electrical test module and a test machine thereof with precise adjustment of the installation position.

[0016] The present invention belongs to the core part of the flexible FPC testing machine, and is mainly used to achieve electrical contact with the nickel sheet of the flexible FPC, so that the flexible FPC is connected to the test circuit to complete the test of its various electrical parameters. The flexible FPC to be tested is placed on the load-bearing platform on the machine table. After the load-bearing platform is fixed, the test component of the present invention descends and contacts the nickel sheet to achieve conduction. The special feature is that the present invention uses a bracket as a load-bearing structure, and a first test channel and a second test channel are arranged side by side in the middle of the bracket. A load-bearing drive component and a test component are respectively arranged in the first test channel and the second test channel, so as to synchronously and independently realize automatic detection of multiple flexible FPCs, thereby doubling the test efficiency; the load-bearing drive component of the present invention is arranged on the bracket, and outputs power in the vertical direction to drive the lifting movement of its mounting frame. The mounting frame adopts an inverted U-shaped frame structure, with its opening facing downward, and the left and right sides are open surfaces. The front and rear inner walls of the mounting frame are respectively provided with installation grooves with inwardly recessed strip structures. During the installation process, the test support plate of the test assembly is horizontally inserted into the installation slot from one end of the mounting frame. This slide-in installation method realizes fast and efficient disassembly and assembly of the test assembly, and guides and limits the installation during the installation process through the front and rear side mounting slots, effectively ensuring the flatness of the inserted test support plate; at the same time, with this slide-in installation method, the position of the test support plate in the installation slot is adjustable. Since there are multiple nickel sheets to be tested, this slide-in installation method can also ensure real-time adjustment of the overall position of the test assembly, so that the multiple groups of test components on the test support plate can be accurately aligned with the multiple nickel sheets to be tested, thereby ensuring the test position accuracy. At the same time, in response to the testing needs of multiple nickel sheets, the present invention arranges multiple groups of test components at the bottom of the test support plate, different test components contact different nickel sheets correspondingly, and the multiple groups of test components are arranged as a whole on a floating plate, and the floating plate is hung upside down and arranged with a gap below the test support plate, and is supported by a connecting piece fixed on the test support plate, and the floating plate is movably arranged between the floating plate and the connecting piece, and is connected to the test support plate through a floating spring, so that it has a flexible floating function in the vertical direction, so that the multiple groups of test components have an overall flexible adjustment function in the process of pressing down to contact the nickel sheet, and effectively realize the flexible contact of the multiple groups of test components; further, the test component of the present invention and the floating plate also adopt a flexible connection method, the test seat of the test component is arranged at intervals below the floating plate, and is flexibly connected to the floating plate through a test spring and a locking piece, so that the test probe has a certain height of free adjustment space in the vertical direction in the process of pressing down to contact the nickel sheet, thereby avoiding bending and deformation caused by excessive downward pressure.Furthermore, a pre-stressed part and an extreme limit column are also provided on the floating plate of the present invention. The height of the pre-stressed part is greater than the height of the test component, so as to pre-press the belt part or the nickel sheet of the flexible FPC during the overall descent of the floating plate. Since the floating plate is flexibly installed, the pre-stressed part can continue to descend after contacting the belt or nickel sheet of the flexible FPC until the test probe contacts the nickel sheet. This pre-contact and pressing method can pre-press and fix the belt or nickel sheet before the test probe contacts the nickel sheet, thereby avoiding the position deviation of the belt or nickel sheet due to local point pressure caused by the test probe contacting the nickel sheet in the later stage, and effectively ensuring the test accuracy; and the height of the extreme limit column is lower than the height of the pre-stressed part. By using the extreme limit column to resist the bearing platform or the flexible FPC, the downward position can be extremely limited, thereby avoiding the bending or breaking of the test probe caused by excessive downward pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is one of the three-dimensional structural schematic diagrams of the present invention.

[0018] Figure 2 This is the second schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 3 This is the third schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure after the components are hidden in the present invention.

[0021] Figure 5 for Figure 4 The enlarged structural diagram at point I in the middle.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the present invention that carries the driving component and the testing component.

[0023] Figure 7 This is one of the three-dimensional structural schematic diagrams of the test assembly of the present invention.

[0024] Figure 8 This is the second schematic diagram of the three-dimensional structure of the test assembly of the present invention.

[0025] Fig. 9 It is a schematic diagram of the installation structure of the test support plate and the floating plate of the present invention.

[0026] Fig.10 It is a schematic diagram of the three-dimensional structure of the flexible FPC of the present invention.

[0027] Fig.11 This is one of the three-dimensional structural schematic diagrams of the test component of the present invention.

[0028] Fig.12 This is the second schematic diagram of the three-dimensional structure of the test component of the present invention.

[0029] Fig.13 It is a schematic diagram of the three-dimensional structure of the test component of Example 2 of the present invention.

[0030] In the figure: 0. Flexible FPC; 01. FPC strip; 02. Nickel sheet; 1. Bracket; 2. Bearing drive assembly; 3. Test assembly; A. First test channel; B. Second test channel; 21. Support plate; 22. Driving cylinder; 23. Guide rod; 24. Mounting frame; 25. Locking cap; C. Mounting slide; 31. Test support plate; 32. Floating plate; 33. Test component; 34. Preload block; 35. Guide column; 36. Limit limit column; 37. Floating spring; 38. Screw; D. Light hole; E. Screw hole; 331. Test seat; 332. Test spring; 333. Locking piece; 334. Probe seat; 335. Test probe. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in 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.

[0032] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example 1

[0034] like Figures 1 to 4As shown, the present invention proposes a flexible FPC nickel sheet electrical test module, which is arranged in a flexible FPC testing machine and is used to electrically contact the nickel sheet of the flexible FPC to complete the conduction of the test circuit, including a bracket 1 mounted on the machine table, a bearing platform for bearing the flexible FPC is arranged below the bracket 1, and also includes a bearing drive component 2 and a test component 3, wherein a first test channel A and a second test channel B are arranged in parallel and spaced apart on the bracket 1; the first test channel A and the second test channel B are provided with a bearing drive component 2 and a test component 3, which are respectively used to test two groups of flexible FPC0; the bearing drive component 2 is arranged on the bracket 1, and outputs power in the vertical direction through the first test channel A or the second test channel B to drive its mounting frame 24 to move up and down; the mounting frame 24 is a U-shaped frame structure with an opening facing downward, and concave strip structures are opened on the front and rear side walls thereof. The test assembly 3 comprises a test support plate 31, a floating plate 32, a test component 33 and a pre-pressed piece, wherein the test support plate 31 is horizontally and detachably inserted into the installation slot C and is fixed to the mounting frame 24 by a locking piece; the floating plate 32 comprises at least two pieces, at least two floating plates 32 are connected to the bottom of the test support plate 31, and float freely in the vertical direction; the test component 33 comprises at least two groups, at least two groups of test components 33 are spaced apart at the lower part of the floating plate 32, and are flexibly connected to the floating plate 32 in the vertical direction, for contacting the nickel sheet 02 of the flexible FPC0; the pre-pressed piece comprises at least two pieces, at least two pre-pressed pieces are arranged at the bottom of the floating plate 32, and the height of the pre-pressed piece is greater than the height of the test component 33 in the natural state, so as to contact and press the FPC belt body 01 of the flexible FPC0 in advance during the test.

[0035] The flexible FPC0 includes an FPC strip 01 and a nickel sheet 02, wherein the FPC strip 01 is a flexible strip with a strip structure; the nickel sheet 02 includes at least two sheets, at least two nickel sheets 02 are connected to the side of the FPC strip 01 at intervals, and are connected to the internal circuit of the FPC strip 01; during the test, the flexible FPC0 is placed horizontally on the carrying platform on the machine.

[0036] The bearing drive assembly 2 includes a support plate 21, a driving cylinder 22, a guide rod 23 and a mounting frame 24, wherein the support plate 21 is horizontally arranged on the bracket 1 and covers the first test channel A or the second test channel B; the driving cylinder 22 is vertically arranged on the support plate 21, and the output end extends vertically downward through the support plate 21; the mounting frame 24 is horizontally arranged below the support plate 21, and is connected to the output end of the driving cylinder 22, and is driven by the driving cylinder 22 to move up and down; the guide rod 23 includes at least two, at least two guide rods 23 are vertically and movably inserted on the support plate 21, and the bottom end of the guide rod 23 is connected and fixed to the mounting frame 24, so as to guide and limit the mounting frame 24 during the lifting and lowering movement.

[0037] The pre-pressing member includes a pre-pressing block 37 . The pre-pressing block 37 is a U-shaped block structure, and two sides of the bottom thereof form a pressing plane for pressing two sides of the FPC belt body 01 .

[0038] A light hole D is formed on the floating plate 32 in the vertical direction, and the light hole D passes through the floating plate 32 vertically. A screw hole E is formed on the test support plate 31 in the vertical direction, and the screw hole E is aligned with the light hole D vertically.

[0039] The floating plate 32 is connected to the lower part of the test support plate 31 through a floating connector; the floating connector includes a floating spring 37 and a screw rod 38, wherein the screw rod 38 is inserted into the light hole D from bottom to top, and is inserted into the screw hole E through the light hole D; the screw rod 38 moves freely in the light hole D, and its upper end is threadedly connected to the screw hole E, and the nut at its lower end extends to the outside of the light hole D, and is used to support the floating plate 2, and the distance between the floating plate 32 and the test support plate 31 is controlled by controlling the depth of the screw rod 38 entering the screw hole E; the floating spring 37 is sleeved on the screw rod 38, and the upper and lower ends of the floating spring 37 respectively resist the test support plate 31 and the floating plate 32, and provide elastic force when the floating plate 32 receives an upward force.

[0040] The test component 33 includes a test seat 331, a test spring 332, a locking piece 333, a probe seat 334 and a test probe 335, wherein the test seat 331 is spaced apart at the lower part of the floating plate 32 and is connected to the floating plate 32 through the test spring 332; the locking piece 333 is inserted into the test seat 331 from top to bottom and is movably connected to the test seat 331, the upper end of the locking piece 333 is fixed on the floating seat 32, and the lower end abuts against and supports the test seat 331; the probe seat 334 is arranged on the test seat 331; the test probe 335 is inserted on the probe seat 334, and the upper and lower ends of the test probe 335 extend to the outside of the probe seat 334 and the test seat 331 respectively, the upper end of the test probe 335 is connected to the test circuit, and the lower end contacts with the nickel sheet 02 so as to connect the nickel sheet 02 to the test circuit.

[0041] The locking member includes a locking nut 25 . The locking nut 25 is inserted into the side wall of the mounting frame 24 from the outside and inserted into the test support plate 31 , so as to lock and fix the test support plate 31 and the mounting frame 24 .

[0042] The test assembly 3 also includes guide columns 35 and limit limit columns 36, wherein the guide columns 35 include at least two, at least two of which are vertically arranged on the floating plate 32, and are used to be inserted into the guide holes of the load-bearing platform during the descent process for guiding and limiting; the limit limit columns 36 include at least two, at least two of which are arranged on the floating plate 36, and the height is not higher than the height of the pre-pressed part, so as to support the load-bearing platform during the descent process and limit the descent height of the test component.

[0043] A testing machine for a flexible FPC nickel sheet electrical testing module. Example 2

[0044] like Fig.13 As shown, as an embodiment of the present invention, the test component 33 of the present invention is different from that in Example 1. The probe seat 334 in Example 1 is locked and fixed on the probe seat 334 by the locking member 333, that is, the locking member 333 passes through the extensions on both sides of the probe seat 334 from the bottom in sequence, and then passes through the test seat 331, and finally inserted into the floating plate 32, and the test probe 335 is inserted in the raised part in the middle of the probe seat 334. The second probe seat 336 of the test component 33 in this embodiment is directly fixed to the bottom of the test seat 331 and protrudes downward, and the test probe 335 is inserted in the second probe seat 336. Example 3

[0045] like Figures 1 to 4 As shown, as an embodiment of the present invention, a group of bearing drive components 2 are arranged at the first test channel A and the second test channel B of the present invention, and a group of test components 3 are inserted on the mounting frame 24 of the group of bearing drive components 2; through this dual test channel structure, automatic testing of two flexible FPCs can be achieved at the same time, which doubles the test efficiency; at the same time, in actual application, according to the test capacity requirements, one or more partitions can be installed in the middle of the mounting frame 24 to divide the mounting frame 24 into multiple spaces for inserting multiple groups of test components 3, thereby further improving the test capacity.

[0046] Furthermore, the present invention designs a two-stage flexible connection that uses an overall flexible support of a floating plate and a flexible connection of a test probe of a test component, which realizes elastic contact between the test probe and the nickel sheet during the process of pressing down to contact the nickel sheet, effectively avoiding bending and deformation of the test probe during the pressing down to contact, and improving the test accuracy. The test component as a whole adopts a detachable and adjustable installation method to realize a flexible FPC nickel sheet electrical test module and its test machine with precise adjustment of the installation position. The present invention belongs to the core part of the flexible FPC test machine, and mainly realizes electrical contact with the nickel sheet of the flexible FPC, so that the flexible FPC is connected to the test circuit to complete the test of its various electrical parameters. The flexible FPC to be tested is placed on a load-bearing platform on the machine table. After the load-bearing platform is fixed, the test component of the present invention descends and contacts the nickel sheet to achieve conduction. The special feature of the present invention is that the bracket is used as the bearing structure, the first test channel and the second test channel are arranged in parallel in the middle of the bracket, and the bearing drive component and the test component are respectively arranged in the first test channel and the second test channel, so as to synchronously and independently realize the automatic detection of multiple flexible FPCs, thereby doubling the test efficiency; the bearing drive component of the present invention is arranged on the bracket, and outputs power in the vertical direction to drive the lifting movement of its mounting frame, and the mounting frame adopts an inverted U-shaped frame structure, with its opening facing downward and the left and right sides being open surfaces, and the front and rear inner side walls of the mounting frame are respectively provided with mounting grooves of inwardly concave strip structures, During the installation process, the test support plate of the test assembly is horizontally inserted into the installation slot from one end of the mounting frame. This slide-in installation method realizes fast and efficient disassembly and assembly of the test assembly, and guides and limits the installation during the installation process through the front and rear side mounting slots, effectively ensuring the flatness of the inserted test support plate; at the same time, with this slide-in installation method, the position of the test support plate in the installation slot is adjustable. Since there are multiple nickel sheets to be tested, this slide-in installation method can also ensure real-time adjustment of the overall position of the test assembly, so that the multiple groups of test components on the test support plate can be accurately aligned with the multiple nickel sheets to be tested, thereby ensuring the test position accuracy. At the same time, in response to the testing needs of multiple nickel sheets, the present invention arranges multiple groups of test components at the bottom of the test support plate, different test components contact different nickel sheets correspondingly, and the multiple groups of test components are arranged as a whole on a floating plate, and the floating plate is hung upside down and arranged with a gap below the test support plate, and is supported by a connecting piece fixed on the test support plate, and the floating plate is movably arranged between the floating plate and the connecting piece, and is connected to the test support plate through a floating spring, so that it has a flexible floating function in the vertical direction, so that the multiple groups of test components have an overall flexible adjustment function in the process of pressing down to contact the nickel sheet, and effectively realize the flexible contact of the multiple groups of test components; further, the test component of the present invention and the floating plate also adopt a flexible connection method, the test seat of the test component is arranged at intervals below the floating plate, and is flexibly connected to the floating plate through a test spring and a locking piece, so that the test probe has a certain height of free adjustment space in the vertical direction in the process of pressing down to contact the nickel sheet, thereby avoiding bending and deformation caused by excessive downward pressure.Furthermore, a pre-stressed part and an extreme limit column are also provided on the floating plate of the present invention. The height of the pre-stressed part is greater than the height of the test component, so as to pre-press the belt part or the nickel sheet of the flexible FPC during the overall descent of the floating plate. Since the floating plate is flexibly installed, the pre-stressed part can continue to descend after contacting the belt or nickel sheet of the flexible FPC until the test probe contacts the nickel sheet. This pre-contact pressing method can pre-press and fix the belt or nickel sheet before the test probe contacts the nickel sheet, thereby avoiding the position deviation of the belt or nickel sheet caused by local point pressure caused by the test probe contacting the nickel sheet in the later stage, and effectively ensuring the test accuracy; and the height of the extreme limit column is lower than the height of the pre-stressed part. By using the extreme limit column to resist the bearing platform or the flexible FPC, the downward position can be extremely limited, thereby avoiding the bending or breaking of the test probe caused by excessive downward pressure.

[0047] The embodiments of the present invention are only to introduce its specific implementation methods and are not intended to limit its protection scope. The technicians in this industry can make some modifications inspired by this embodiment, so any equivalent changes or modifications made according to the scope of the patent of the present invention are within the scope of the patent claims of the present invention.

Claims

1. A flexible FPC nickel sheet electrical test module, arranged in a flexible FPC test machine, for electrically contacting the nickel sheet of the flexible FPC to complete the conduction of the test circuit, comprising a bracket (1) mounted on a machine platform, a bearing platform for bearing the flexible FPC being arranged below the bracket (1), characterized in that: It also includes a bearing drive component (2) and a test component (3), wherein: The bracket (1) is provided with a first test channel (A) and a second test channel (B) in parallel and at intervals; the first test channel (A) and the second test channel (B) are provided with a bearing drive component (2) and a test component (3), which are respectively used to test two groups of flexible FPCs (0); The bearing drive assembly (2) is arranged on the bracket (1) and outputs power in a vertical direction through the first test channel (A) or the second test channel (B) to drive the mounting frame (24) to move upward and downward; The mounting frame (24) is a U-shaped frame structure with an opening facing downward, and a mounting slide groove (C) with a concave strip structure is provided on the front and rear side walls thereof; The test assembly (3) comprises a test support plate (31), a floating plate (32), a test component (33) and a pre-pressed piece, wherein the test support plate (31) is horizontally and detachably inserted into the mounting slot (C) and fixed to the mounting frame (24) by a locking piece; the floating plate (32) comprises at least two pieces, at least two floating plates (32) are connected to the bottom of the test support plate (31) and float freely in the vertical direction; the test component (33) comprises at least two groups, at least two groups of test components (33) are arranged at intervals at the bottom of the floating plate (32), and are flexibly connected to the floating plate (32) in the vertical direction, and are used to contact the nickel sheet (02) of the flexible FPC (0); the pre-pressed piece comprises at least two pieces, at least two pre-pressed pieces are arranged at the bottom of the floating plate (32), and the height of the pre-pressed piece is greater than the height of the test component (33) in the natural state, so as to contact and press the FPC belt body (01) of the flexible FPC (0) in advance during the test.

2. A flexible FPC nickel sheet electrical test module according to claim 1, characterized in that: The flexible FPC (0) comprises an FPC strip (01) and a nickel sheet (02), wherein the FPC strip (01) is a flexible strip with a strip structure; the nickel sheet (02) comprises at least two sheets, and the at least two nickel sheets (02) are connected to the side of the FPC strip (01) at intervals and are connected to the internal circuit of the FPC strip (01); during the test, the flexible FPC (0) is horizontally placed on a bearing platform on a machine platform.

3. A flexible FPC nickel sheet electrical test module according to claim 1, characterized in that: The bearing drive assembly (2) comprises a support plate (21), a driving cylinder (22), a guide rod (23) and a mounting frame (24), wherein the support plate (21) is horizontally arranged on the support (1) and covers the first test channel (A) or the second test channel (B); the driving cylinder (22) is vertically arranged on the support plate (21), and the output end passes through the support plate (21) and extends vertically downward; the mounting frame (24) is horizontally arranged below the support plate (21) and is connected to the output end of the driving cylinder (22), and is driven by the driving cylinder (22) to move up and down; the guide rod (23) comprises at least two guide rods (23), at least two guide rods (23) are vertically and movably inserted on the support plate (21), and the bottom ends of the guide rods (23) are connected and fixed to the mounting frame (24) so ​​as to guide and limit the mounting frame (24) during the lifting and lowering movement.

4. A flexible FPC nickel sheet electrical test module according to claim 1, characterized in that: The pre-pressing component comprises a pre-pressing block (37), which is a U-shaped block structure, and has two sides of its bottom forming a pressing plane for pressing two sides of the FPC belt body (01).

5. A flexible FPC nickel sheet electrical test module according to claim 1, characterized in that: A light hole (D) is provided on the floating plate (32) in the vertical direction, the light hole (D) passes through the floating plate (32) vertically, and a screw hole (E) is provided on the test support plate (31) in the vertical direction; the screw hole (E) is aligned with the light hole (D) vertically.

6. A flexible FPC nickel sheet electrical test module according to claim 5, characterized in that: The floating plate (32) is connected to the lower part of the test support plate (31) through a floating connection piece; the floating connection piece includes a floating spring (37) and a screw rod (38), wherein the screw rod (38) is inserted into the light hole (D) from bottom to top, and is inserted into the screw hole (E) through the light hole (D); the screw rod (38) moves freely in the light hole (D), and its upper end is threadedly connected to the screw hole (E), and the nut at its lower end extends to the outside of the light hole (D) for supporting the floating plate (2), and the distance between the floating plate (32) and the test support plate (31) is controlled by controlling the depth of the screw rod (38) entering the screw hole (E); the floating spring (37) is sleeved on the screw rod (38), and the upper and lower ends of the floating spring (37) respectively abut against the test support plate (31) and the floating plate (32), and provide elastic force when the floating plate (32) receives an upward force.

7. A flexible FPC nickel sheet electrical test module according to claim 1, characterized in that: The test component (33) comprises a test seat (331), a test spring (332), a locking piece (333), a probe seat (334) and a test probe (335), wherein the test seat (331) is arranged at a distance from the bottom of the floating plate (32) and is connected to the floating plate (32) via the test spring (332); the locking piece (333) is inserted into the test seat (331) from top to bottom and is movably connected to the test seat (331); the upper end of the locking piece (333) The test probe (335) is inserted into the probe seat (334), and the upper and lower ends of the test probe (335) extend to the outside of the probe seat (334) and the test seat (331), respectively. The upper end of the test probe (335) is connected to the test circuit, and the lower end is in contact with the nickel sheet (02) so as to connect the nickel sheet (02) to the test circuit.

8. A flexible FPC nickel sheet electrical test module according to claim 1, characterized in that: The locking member comprises a locking nut (25), which is inserted into the side wall of the mounting frame (24) from the outside and abuts against the side wall of the test support plate (31) to lock and fix the test support plate (31) and the mounting frame (24).

9. A flexible FPC nickel sheet electrical test module according to claim 1, characterized in that: The test assembly (3) further comprises guide posts (35) and limit stop posts (36), wherein the guide posts (35) comprise at least two, at least two of which are vertically arranged on the floating plate (32) and are used to be inserted into guide holes of the bearing platform during the descent process for guiding and limiting; the limit stop posts (36) comprise at least two, at least two of which are arranged on the floating plate (36) and have a height not higher than that of the pre-pressed part, so as to abut against the bearing platform during the descent process and limit the descent height of the test component.

10. A testing machine comprising the flexible FPC nickel sheet electrical testing module according to any one of claims 1 to 9.

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