A flexible circuit board fixture

Abstract

The present invention discloses a flexible circuit board fixture, including a base and at least two clamping members, the base is provided with a first through slot and a second through slot, the first through slot is composed of a plurality of first positioning slots arranged along a first direction; at least two clamping members are arranged at intervals along the first direction, the clamping member is provided with a clamp and a mounting seat, the mounting seat is passed through the second through slot, the clamp and the mounting seat are connected and located on the side of the mounting seat away from the base, the mounting seat is provided with a first rotating shaft, the first rotating shaft is passed through the first positioning slot and rotates with the first positioning slot. By providing a recyclable clamping member, the processing cost of the flexible board substrate can be effectively reduced, the production efficiency of the flexible board substrate can be improved, and by providing a plurality of first positioning slots, the consistency of the pre-processed finished product of the flexible board substrate and the yield rate of the finished product can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of circuit boards, and in particular to a flexible circuit board clamp. Background Art

[0002] Flexible printed circuit (FPC), also known as soft board, is a printed circuit made of flexible insulating substrate. In actual production, the soft board substrate needs to be pre-treated before entering key processes such as wiring, bonding, and OSP to achieve the purpose of cleaning the board surface and roughening the copper surface. Because the soft board substrate is too thin to be directly carried by the machine gear, it needs to be manually bonded together with a high-temperature resistant glue and a pad. Every time the user processes a soft board substrate, it needs to be manually glued, which will increase the processing cost of the soft board substrate and affect the production efficiency of the soft board substrate. In addition, the accuracy of manual glue is poor, and the position of each soft board substrate on the pad after bonding is different, which easily leads to poor consistency and low yield of the pre-processed soft board substrate. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art to at least a certain extent. To this end, the present invention proposes a flexible circuit board clamp, which uses a clamping member to clamp a flexible circuit board substrate, and the clamping member is recycled, which can effectively reduce the processing cost of the flexible circuit board substrate and improve the production efficiency of the flexible circuit board substrate.

[0004] A flexible circuit board clamp according to an embodiment of the present invention includes a base and at least two clamping members, the base is provided with a first through slot and a second through slot, the first through slot is arranged at the top of the base, the second through slot is arranged at one side of the base, the first through slot is composed of a plurality of first positioning slots arranged along a first direction, the plurality of first positioning slots are interconnected, and the plurality of first positioning slots are all connected to the second through slot; at least two of the clamping members are arranged at intervals along the first direction, the clamping member is provided with a clamping head and a mounting seat, the mounting seat is passed through the second through slot, the clamping head is connected to the mounting seat and is located on the side of the mounting seat away from the base, the mounting seat is provided with a first rotating shaft, the first rotating shaft is passed through the first positioning slot and rotates with the first positioning slot.

[0005] A flexible circuit board clamp according to an embodiment of the present invention has at least the following beneficial effects: before the user pre-processes the soft board substrate, the user can first flatten the soft board substrate, and then use the clamping member to clamp one side of the soft board substrate to achieve fixed installation of the soft board substrate; after the clamp brings the soft board substrate through the pre-processing machine, the user removes the soft board substrate and can use the clamp to fix and install the next soft board substrate; by providing a recyclable clamping member, the user can disassemble and assemble the soft board substrate through the clamping member, which can effectively reduce the processing cost of the soft board substrate and improve the production efficiency of the soft board substrate; at least two clamping members are arranged in multiple By moving in the first through groove composed of the first positioning grooves and rotating in the first positioning groove, the spacing between at least two clamping members can be changed, so that the clamp can clamp soft board substrates of different sizes. By setting multiple first positioning grooves, the clamping members can be positioned under the premise of retaining the advantage of a wide range of applications of the adhesive soft board substrate. After the positions of at least two clamping members are fixed, the soft board substrate clamped by the clamping members is also positioned, so that the soft board substrates of the same size are fixed at the same position on the side of the base, effectively improving the consistency of the pre-processed products of the soft board substrate and the yield rate of the finished products.

[0006] According to some embodiments of the present invention, the first through groove is configured as a sawtooth groove, a groove wall of the sawtooth groove is provided with a plurality of tooth protrusions arranged along a first direction, and the first positioning groove is located between two adjacent tooth protrusions.

[0007] According to some embodiments of the present invention, the first rotating shaft is configured as a first magnetic conductive member, a first magnet is provided on a side wall of the tooth protrusion, and the first magnet and the first magnetic conductive member are magnetically connected.

[0008] According to some embodiments of the present invention, an operating portion is provided at the top end of the first rotating shaft, and an outer diameter of the operating portion is larger than a diameter of the first rotating shaft.

[0009] According to some embodiments of the present invention, the mounting seat is provided with a third through slot, the chuck is connected to a rod body, the rod body is passed through the third through slot and is slidably connected to the mounting seat, the rod body slides along the second direction, the mounting seat is provided with a positioning member, a plurality of positioning members are arranged at intervals along the second direction, a second positioning slot is formed between two adjacent positioning members, the second positioning slot is located above the third through slot and is connected to the third through slot, and a second rotating shaft is provided at one end of the rod body away from the chuck, and the second rotating shaft can rotate and cooperate with the second positioning slot.

[0010] According to some embodiments of the present invention, the positioning member is provided with a limiting portion, the limiting portion is located at one side of the second positioning groove, and the limiting portion is extended toward the first rotating shaft.

[0011] According to some embodiments of the present invention, the clamp is provided with a first clamp and a second clamp, the first clamp is connected to the rod body, the second clamp is located above the first clamp, an end of the second clamp close to the rod body is provided with a spring sheet, the spring sheet is connected to the first clamp to separate the first clamp and the second clamp, an adjusting member is provided between the first clamp and the second clamp, and the adjusting member is used to adjust the distance between the first clamp and the second clamp.

[0012] According to some embodiments of the present invention, the adjusting member is provided with a screw and a nut, the screw is sequentially passed through the first clip and the second clip, and the nut is located on a side of the second clip away from the first clip and connected to the screw.

[0013] According to some embodiments of the present invention, the second rotating shaft is configured as a second magnetic conductive member, a second magnet is provided on a side wall of the positioning member, and the second magnet is magnetically connected to the second magnetic conductive member.

[0014] According to some embodiments of the present invention, the base is provided with a mounting groove, which is arranged at the top of the base and located on one side of the groove openings of the first through groove and the second through groove, and the first through groove and the second through groove are respectively connected to the mounting groove.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a clamping member according to an embodiment of the present invention;

[0017] Figure 2 is a top view of a clamp according to an embodiment of the present invention;

[0018] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0019] Figure 4 yes Figure 2 The enlarged view of point B in the middle;

[0020] Figure 5 2 is a schematic structural diagram of a base according to an embodiment of the present invention.

[0021] Reference numerals: base 100; first through slot 101; first positioning slot 1011; second through slot 102; mounting slot 103; tooth projection 110; first magnet 111; clamping member 200; third through slot 201; second positioning slot 202; chuck 210; first clamping piece 211; second clamping piece 211; elastic piece 2111; mounting base 220; first rotating shaft 221; operating portion 2211; rod body 230; second rotating shaft 231; positioning member 240; limiting portion 241; second magnet 242; adjusting member 250; screw 251; nut 252. Detailed implementation manners

[0022] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0023] In the description of the present invention, the meaning of "a number of" is one or more, the meaning of "a plurality of" is more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0024] The embodiments of the present application will be further described below with reference to the drawings.

[0025] Refer to Figures 1 to 5, A flexible circuit board fixture according to an embodiment of the present invention includes a base 100 and at least two clamping members 200. The base 100 is provided with a first through groove 101 and a second through groove 102. The first through groove 101 is a hole groove provided at the top of the base 100 and extending downward but not penetrating the base 100. The second through groove 102 is a hole groove provided on one side of the base 100 and communicating with the first through groove 101. The first through groove 101 is composed of a plurality of first positioning grooves 1011 arranged in a first direction. The plurality of first positioning grooves 1011 communicate with each other, and the plurality of first positioning grooves 1011 are all communicated with the second through groove 102. At least two clamping members 200 are arranged at intervals in the first direction (when the number of clamping members 200 is even, the even number of clamping members 200 are symmetrically arranged in the second through groove 102. Hereinafter, the description will be based on two clamping members 200 and will not be repeated later). The clamping member 200 is provided with a chuck 210 and a mounting seat 220. The mounting seat 220 passes through the second through groove 102. The chuck 210 and the mounting seat 220 are connected and located on the side of the mounting seat 220 away from the base 100. One end of the mounting seat 220 away from the chuck 210 is provided with a first rotating shaft 221. The first rotating shaft 221 is perpendicular to the mounting seat 220. The first rotating shaft 221 passes through the first positioning groove 1011 and is rotationally matched with the first positioning groove 1011.

[0026] It can be understood that before the user performs pretreatment on the flexible board substrate, the flexible board substrate can be laid flat first, and then one side of the flexible board substrate can be clamped by the clamping member 200 to realize the fixed installation of the flexible board substrate. After the jig takes the flexible board substrate through the pretreatment machine, the user removes the flexible board substrate, and then can use the jig to fix and install the next flexible board substrate. By setting the recyclable clamping member 200, the user can disassemble and assemble the flexible board substrate through the clamping member 200, which can effectively reduce the processing cost of the flexible board substrate and improve the production efficiency of the flexible board substrate; at least two clamping members 200 move in the first through groove 101 formed by a plurality of first positioning grooves 1011 and rotate in the first positioning grooves 1011, so as to change the distance between at least two clamping members 200, so that the jig can clamp flexible board substrates of different sizes. By setting a plurality of first positioning grooves 1011, the clamping member 200 can be positioned on the premise of retaining the advantage of a wide applicable range of the adhesive flexible board substrate. After the positions of at least two clamping members 200 are fixed (when it is necessary to rotate the clamping member 200 to clamp the flexible board substrate, the position of the first rotating shaft 221 remains unchanged, and the chuck 210 clamps the flexible board substrate obliquely. At this time, the distance between the chucks 210 is too large, that is, the rotation angle of the first rotating shaft 221 is too small, or the distance between the chucks 210 is too small, that is, the rotation angle of the first rotating shaft 221 is too large, and the chuck 210 will shift to the side of the flexible board substrate and thus cannot clamp the flexible board substrate. Therefore, even if the first rotating shaft 221 and the first positioning groove 1011 are rotationally matched, the position of the clamping member 200 will be positioned after clamping the flexible board substrate), the flexible board substrate clamped by the clamping member 200 is also positioned, so that flexible board substrates of the same size specification are fixed at the same position on the side of the base 100, effectively improving the consistency of the flexible board substrate pretreatment products and the yield rate of the products. In addition, when using the clamping member 200 to clamp the flexible board substrate, there is no high-temperature glue residue after the flexible board substrate is processed, which can save the time cost and labor cost spent by the user in cleaning the residual glue, and further improve the production efficiency of the flexible board substrate and the yield rate of the processed products.

[0027] Refer to Figure 1, It can be understood that the mounting base 220 is provided with a third through groove 201. The chuck 210 is connected with a rod body 230. The rod body 230 passes through the third through groove 201 and is slidably connected with the mounting base 220. The rod body 230 slides along the second direction. The mounting base 220 is provided with positioning members 240. A plurality of positioning members 240 are arranged at intervals along the second direction. A second positioning groove 202 is formed between two adjacent positioning members 240. The second positioning groove 202 is located above the third through groove 201 and communicates with the third through groove 201. One end of the rod body 230 away from the chuck 210 is provided with a second rotating shaft 231. The second rotating shaft 231 can be rotationally matched with the second positioning groove 202. With such a setting, when the user moves the rod body 230 and installs the second rotating shaft 231 into different second positioning grooves 202, the distance between the chuck 210 and the base 100 can be changed, realizing the telescopic function of the chuck 210. The movement of the rod body 230 in cooperation with the rotation of the second rotating shaft 231 can expand the adjustment angle of the clamping member 200, further expanding the applicable range of the fixture and improving the product competitiveness of the fixture.

[0028] Further, the chuck 210 is provided with a first clamping piece 211 and a second clamping piece 211. The first clamping piece 211 is connected with the rod body 230. The second clamping piece 211 is located above the first clamping piece 211. One end of the second clamping piece 211 close to the rod body 230 is provided with an elastic piece 2111. The elastic piece 2111 is connected with the first clamping piece 211 to separate the first clamping piece 211 and the second clamping piece 211. An adjusting member 250 is arranged between the first clamping piece 211 and the second clamping piece 211. The adjusting member 250 is used to adjust the distance between the first clamping piece 211 and the second clamping piece 211. When the user tightens the adjusting member 250, the distance between the first clamping piece 211 and the second clamping piece 211 can be reduced; when the user loosens the adjusting member 250, the distance between the first clamping piece 211 and the second clamping piece 211 can be increased. With such a setting, the chuck 210 can clamp circuit boards of different thicknesses, further expanding the applicable range of the fixture. By arranging the elastic piece 2111 to connect the first clamping piece 211 and the second clamping piece 211, after the user loosens the adjusting member 250, the elastic piece 2111 drives the second clamping piece 211 to quickly leave the flexible board substrate, further improving the structural rationality of the chuck 210 while enhancing the user experience.

[0029] Refer to Figure 1 and Figure 2, it can be understood that the positioning member 240 is provided with a limiting portion 241. The limiting portion 241 is located on one side of the second positioning groove 202 and on the side of the positioning member 240 close to the center of the mounting seat 220. The limiting portion 241 extends towards the first rotating shaft 221. A positioning gap (not shown in the figure) for the second rotating shaft 231 to pass through is formed between the limiting portion 241 and the adjacent positioning member 240. After the user moves the second rotating shaft 231 from the third through groove 201 to the second positioning groove 202 through the positioning gap, the opposite side walls of two adjacent positioning members 240 cooperate to limit the second rotating shaft 231 in the second direction. The limiting portion 241 and the side wall of the mounting seat 220 cooperate to limit the second rotating shaft 231 in the first direction, thereby preventing the second rotating shaft 231 from leaving the second positioning groove 202 due to insufficient magnetic force of the second magnet 242 during the process of the user rotating the second rotating shaft 231. By providing the limiting portion 241, the installation stability of the second rotating shaft 231 can be effectively improved, facilitating the user to rotate and adjust the second rotating shaft 231 and enhancing the user experience.

[0030] Referring to Figure 2 and Figure 3 , it can be understood that the base 100 is provided with a mounting groove 103. The mounting groove 103 is arranged at the top of the base 100 and on the side of the first through groove 101 close to the notch of the second through groove 102. The first through groove 101 and the second through groove 102 are respectively communicated with the mounting groove 103. The base 100 is usually integrally processed. At this time, the mounting seat 220 passes through the second through groove 102 provided on the side wall of the base 100, and the first rotating shaft 221 is perpendicular to the mounting seat 220 and passes through the first through groove 101 provided at the top of the base 100. Obviously, the first rotating shaft 221 is connected to the mounting seat 220 after the mounting seat 220 passes through the second through groove 102. At this time, if one end of the mounting seat 220 is directly moved below the first through groove 101 and then the first rotating shaft 221 is installed, the user needs to hold the mounting seat 220 and insert it into the second through groove 102 and then move the mounting seat 220 blindly, which is inconvenient for the user to load and unload the clamping member 200. By providing the mounting groove 103, the user can abut the mounting seat 220 against the side wall of the second through groove 102, so that the mounting seat 220 is directly located right below the mounting groove 103. Since the mounting groove 103 is located on the side of the first through groove 101 close to the notch of the second through groove 102, most of the mounting seat 220 is exposed outside the base 100, facilitating the user to observe and move the mounting seat 220, and thus facilitating the user to disassemble and assemble the clamping member 200 and effectively improving the rationality of the overall structure of the fixture.

[0031] It should be noted that the first rotating shaft 221 and the mounting base 220 can be bolted, that is, threaded holes are provided at the bottom end of the first rotating shaft 221, and screws 251 corresponding to the threaded holes are provided on the mounting base 220. They can also be connected and fitted in common ways such as snap connection and plug connection. Since the connection between the first rotating shaft 221 and the mounting base 220 is not the focus of the present invention, the connection structure between the first rotating shaft 221 and the mounting base 220 will not be specifically described here. As long as the first rotating shaft 221 and the mounting base 220 are detachably connected.

[0032] Referring to Figures 1 to 3 , it can be understood that the second rotating shaft 231 is provided as a second magnetic conductive member, and a second magnet 242 is embedded in the side wall of the positioning member 240. The second magnet 242 and the second magnetic conductive member are magnetically connected. Since the second rotating shaft 231 passes through the second positioning groove 202 and is rotationally fitted with the second positioning groove 202, although the second rotating shaft 231 will be limited by the pulling force of other second rotating shafts 231 when clamping the flexible board substrate, when the fixture unloads the processed flexible board substrate and loads the flexible board substrate to be processed, the second rotating shaft 231 is in a free rotation state in the second positioning groove 202. The user needs to adjust the rotation angle of the second rotating shaft 231 to ensure that the chuck 210 can clamp the flexible board substrate. By providing the second magnet 242 and the second magnetic conductive member, the side wall of the second positioning groove 202, that is, the side wall of the positioning member 240, can adsorb the second rotating shaft 231, and without the premise of external force driving, the free rotation of the second rotating shaft 231 is restricted, effectively improving the operation stability of the chuck 210 and the positioning accuracy of the fixture.

[0033] Further, the adjusting member 250 is provided with a screw 251 and a nut 252. The first clamping piece 211 is provided with a first through hole (not shown in the figure), and the second clamping piece 211 is provided with a second through hole corresponding to the first through hole (not shown in the figure). The screw 251 sequentially passes through the first through hole and the second through hole, and the nut 252 is located on the side of the second clamping piece 211 away from the first clamping piece 211 and is connected to the screw 251. Due to the presence of the screw 251, when the chuck 210 clamps the flexible board substrate, only a part of the second clamping piece 211 presses against the flexible board substrate. The adjusting member 250 is set to the structure of the screw 251 and the nut 252. When the user rotates the nut 252, the distance between the first clamping piece 211 and the second clamping piece 211 can be adjusted. If the nut 252 is fixed, the distance between the first clamping piece 211 and the second clamping piece 211 is also determined. When the distance between the first clamping piece 211 and the second clamping piece 211 just fixes the flexible board substrate, the user can press the elastic piece 2111 (obviously, there is no flexible board substrate between the elastic piece 2111 and the first clamping piece 211). The elastic piece 2111 deforms and drives the second clamping piece 211 to move towards the first clamping piece 211 on the side close to the elastic piece 2111. Since the position of the nut 252 is fixed, the nut 252 can be approximately regarded as the rotation axis of the second clamping piece 211. At this time, the side of the second clamping piece 211 away from the elastic piece 2111 (i.e., the part of the second clamping piece 211 that presses against the flexible board substrate) deforms slightly in the direction away from the first clamping piece 211, which is convenient for the user to quickly place the flexible board substrate between the first clamping piece 211 and the second clamping piece 211 or take it out from between the first clamping piece 211 and the second clamping piece 211. Subsequently, the user releases the elastic piece 2111, and the elastic piece 2111 resets under its own elastic force and drives the second clamping piece 211 to reset. Since the position of the nut 252 is fixed, the distance between the first clamping piece 211 and the second clamping piece 211 still just fixes the flexible board substrate. By setting the screw 251 and the nut 252 in cooperation with the elastic piece 2111, the quick loading and unloading of the flexible board substrate can be realized, saving the time spent by the user for loading and unloading, and further improving the processing efficiency of the flexible board substrate.

[0034] Refer to Figure 1 and Figure 4, It can be understood that the first rotating shaft 221 is set as the first magnetic conductive member, and a first magnet 111 is embedded in the side wall of the tooth protrusion 110. The first magnet 111 and the first magnetic conductive member are magnetically connected. Since the first rotating shaft 221 passes through the first positioning groove 1011 and is rotationally matched with the first positioning groove 1011, although the first rotating shaft 221 will be limited by the pulling force of other first rotating shafts 221 when clamping the flexible board substrate, when the fixture unloads the processed flexible board substrate and loads the flexible board substrate to be processed, the first rotating shaft 221 is in a free rotation state in the first positioning groove 1011. The user needs to adjust the rotation angle of the first rotating shaft 221 to ensure that the rotation angle of the clamping member 200 remains unchanged. By setting the first magnet 111 and the first magnetic conductive member, the groove wall of the first positioning groove 1011 can adsorb the second rotating shaft 231, and without the drive of external force, the free rotation of the first rotating shaft 221 is restricted, further improving the operation stability of the chuck 210 and the positioning accuracy of the fixture.

[0035] Furthermore, an operation part 2211 is provided at the top of the first rotating shaft 221, and the outer diameter of the operation part 2211 is larger than the diameter of the first rotating shaft 221. The user moves the clamping member 200 by pressing and pushing the first rotating shaft 221. Considering the overall size of the fixture, the diameter of the first rotating shaft 221 is usually smaller than the width of the user's thumb, which may cause sensations such as tingling and tenderness when the user continuously presses and moves the first rotating shaft 221. By setting the operation part 2211 with an outer diameter larger than that of the first rotating shaft 221, the contact area between the fixture and the user's thumb can be increased, reducing the discomfort of the user, thereby improving the operation feel of the fixture and further enhancing the user experience.

[0036] It should be added that a structure similar to the operation part 2211 is also provided at the top of the second rotating shaft 231, and its effect is similar to that of the operation part 2211. For specific reference, please refer to the above description of the operation part 2211 and will not be elaborated here.

[0037] Refer to Figure 4 and Figure 5, the first through groove 101 is provided as a serrated groove. A plurality of tooth protrusions 110 are arranged along the first direction on the groove wall of the serrated groove close to the clamping member 200. The first positioning groove 1011 is located between two adjacent tooth protrusions 110. By setting the first through groove 101 as a serrated groove, on the one hand, the tooth protrusions 110 of the serrated groove can play a guiding role to help the user quickly move the first rotating shaft 221 in the first through groove 101, improving the convenience of using the fixture; on the other hand, the tooth protrusions 110 of the serrated groove are composed of two connected planes, and the planes of the tooth protrusions 110 are the groove walls of the first positioning groove 1011. By setting the first through groove 101 as a serrated groove, that is, setting the groove walls of the first positioning groove 1011 as planes, it is convenient for the installation and use of the first magnetic guide, and further improves the structural rationality of the chuck 210.

[0038] The above is a specific description of the preferred embodiment of the present invention, but the present invention is not limited to the above-mentioned embodiments. Those skilled in the art can also make various equivalent deformations or substitutions without departing from the purpose of the present invention, and these equivalent deformations or substitutions are all included within the scope defined by the claims of the present invention.

Claims

1. A flexible circuit board fixture, characterized in that, include: A base, provided with a first through slot and a second through slot, wherein the first through slot is arranged at the top of the base, and the second through slot is arranged at one side of the base, wherein the first through slot is composed of a plurality of first positioning slots arranged along a first direction, wherein the plurality of first positioning slots are interconnected, and the plurality of first positioning slots are all connected to the second through slot; At least two clamping members, at least two of the clamping members are arranged at intervals along the first direction, the clamping members are provided with a clamping head and a mounting seat, the mounting seat is penetrated through the second through groove, the clamping head and the mounting seat are connected and are located on the side of the mounting seat away from the base, the mounting seat is provided with a first rotating shaft, the first rotating shaft is penetrated through the first positioning groove and rotatably cooperates with the first positioning groove.

2. The flexible circuit board fixture according to claim 1, characterized in that The first through groove is configured as a sawtooth groove, a groove wall of the sawtooth groove is provided with a plurality of tooth protrusions arranged along a first direction, and the first positioning groove is located between two adjacent tooth protrusions.

3. The flexible circuit board fixture according to claim 2, characterized in that, The first rotating shaft is configured as a first magnetic conductive member, a first magnet is disposed on a side wall of the tooth protrusion, and the first magnet is magnetically connected to the first magnetic conductive member.

4. A flexible circuit board fixture according to claim 1 or 2, characterized in that, An operating portion is disposed at the top end of the first rotating shaft, and an outer diameter of the operating portion is greater than a diameter of the first rotating shaft.

5. A flexible circuit board fixture according to claim 1, characterized in that The mounting seat is provided with a third through slot, the chuck is connected to a rod body, the rod body is passed through the third through slot and is slidably connected to the mounting seat, the rod body slides along the second direction, the mounting seat is provided with a positioning member, and a plurality of positioning members are arranged at intervals along the second direction, a second positioning groove is formed between two adjacent positioning members, the second positioning groove is located above the third through slot and is connected to the third through slot, and a second rotating shaft is provided at one end of the rod body away from the chuck, and the second rotating shaft can rotatably cooperate with the second positioning groove.

6. The flexible circuit board fixture according to claim 5, wherein The positioning member is provided with a limiting portion, the limiting portion is located at one side of the second positioning groove, and the limiting portion is extended toward the first rotating shaft.

7. A flexible circuit board fixture according to claim 5 or 6, characterized in that, The clamp is provided with a first clamp and a second clamp, the first clamp is connected to the rod body, the second clamp is located above the first clamp, an elastic sheet is provided at one end of the second clamp close to the rod body, the elastic sheet is connected to the first clamp to separate the first clamp and the second clamp, an adjusting member is provided between the first clamp and the second clamp, and the adjusting member is used to adjust the distance between the first clamp and the second clamp.

8. The flexible circuit board fixture according to claim 7, wherein, The adjusting member is provided with a screw and a nut. The screw is sequentially passed through the first clamping piece and the second clamping piece. The nut is located on a side of the second clamping piece away from the first clamping piece and is connected to the screw.

9. A flexible circuit board fixture according to claim 5, characterized in that, The second rotating shaft is configured as a second magnetic conductive member, a second magnet is disposed on a side wall of the positioning member, and the second magnet is magnetically connected to the second magnetic conductive member.

10. A flexible circuit board fixture according to claim 1, characterized in that, The base is provided with a mounting groove, which is arranged at the top of the base and located on a side of the first through groove close to the notch of the second through groove, and the first through groove and the second through groove are respectively communicated with the mounting groove.

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