A clamping and fixing mechanism and a hanger

Abstract

The present invention belongs to the technical field of electroplating equipment, and particularly relates to a clamping and fixing mechanism and a fixture. The clamping and fixing mechanism includes a fixture assembly adapted to be fixed to the bottom of a conductive plate. The fixture assembly is adapted to clamp the upper edge of a circuit board, and further includes at least one first connecting member. One end of the first connecting member is adapted to be connected to the fixture assembly, and the other end is adapted to extend in a direction away from the fixture assembly, and the first connecting member is an insulating member. The material clip assembly is spaced apart from and opposed to the fixture assembly and is connected to the other end of the first connecting member, and is adapted to clamp the lower edge of the circuit board. The material clip assembly, the first connecting member and the fixture assembly together enclose a frame structure with a clamping cavity, and the circuit board is adapted to have its upper edge and lower edge clamped and fixed in the clamping cavity. Due to the adoption of the frame structure, the perpendicularity of the thin plate is ensured, so that the thin plate is within the frame during the entire electroplating process and will not come into contact and collision with the wall of the electroplating tank, ensuring the quality of the thin plate.

Description

Technical Field

[0001] The present invention belongs to the technical field of electroplating equipment, and particularly relates to a clamping and fixing mechanism and a hanger. Background Art

[0002] In the electroplating industry, when electroplating a corresponding thickness of metal layer on a circuit board through an electroplating tank, it is necessary to use a fixture to clamp under the hanger, and a plurality of jaws arranged at intervals in the width direction of the circuit board are connected to the jaw fixing plate on the fixture. The upper end of the plate is clamped and fixed by the jaws, the circuit board is suspended in the corresponding electroplating tank, and the hanger is driven by a conveying mechanism to drive the circuit board to be electroplated in electroplating tanks with different functions. During electroplating, the cathode current is guided from the conductive plate to the jaw fixing plate, and then the current is guided from the jaw fixing plate to the jaws. After the jaws are charged, they provide cathode electricity for the circuit board, so that the circuit board is charged and reacts with metal cations in the electroplating tank to complete electroplating.

[0003] To ensure the stability of clamping and the perpendicularity of the circuit board in the electroplating tank and the quality of electroplating, usually the middle and both ends of the upper edge of the circuit board need to be fixed by jaws, and the jaws are electrically connected to the jaw fixing plate. However, in electroplating, circuit boards of different thicknesses often need to be electroplated. For a circuit board with a larger thickness, due to the higher strength of the circuit board itself, the upper edge of the circuit board is clamped by the jaws on the fixture located above the circuit board, and the gravity of the fixture and the circuit board itself enables the circuit board to maintain good perpendicularity. However, for a circuit board with a thinner thickness, especially a thin plate with a thickness less than 0.3 mm, its own strength is not sufficient to ensure the perpendicularity of the plate surface. If only the upper edge of the thin plate is clamped by the fixture above the thin plate, the lower end of the thin plate is very likely to shake, resulting in contact and collision between the thin plate and the wall of the electroplating tank during the electroplating process in the electroplating tank or during the transfer between tanks, thus affecting the quality of the thin plate. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the problem in the prior art that the fixture can only clamp the upper edge of the thin plate, and the lower end of the thin plate is very likely to shake, resulting in contact between the thin plate and the wall of the electroplating tank during the electroplating process in the electroplating tank or during the transfer between tanks, thus affecting the quality of the thin plate. Therefore, a clamping and fixing mechanism and a hanger with the clamping and fixing mechanism are provided, in which the thin plate will not collide with the tank wall during the entire electroplating process.

[0005] For this purpose, the present invention provides a clamping and fixing mechanism, including a fixture assembly adapted to be fixed to the bottom of a conductive plate, the fixture assembly being adapted to clamp the upper edge of a circuit board, and further including:

[0006] At least one first connecting member, one end of the first connecting member is adapted to be connected to the fixture assembly, the other end is adapted to extend in a direction away from the fixture assembly and the first connecting member is an insulating member;

[0007] A clip assembly, spaced opposite to the fixture assembly and connected to the other end of the first connecting member, adapted to clamp the lower edge of the circuit board, and the clip assembly, the first connecting member and the fixture assembly together enclose a frame structure with a clamping cavity, and the circuit board is adapted to have both the upper edge and the lower edge clamped and fixed in the clamping cavity.

[0008] Preferably, for a clamping and fixing mechanism, on opposite sides of the fixture assembly along its thickness direction are a first side surface and a second side surface respectively, wherein at least one first connecting portion is provided on the first side surface, and the end of the first connecting member close to the fixture assembly is correspondingly inserted and fixed in the first connecting portion;

[0009] The clip assembly is provided with a second connecting portion corresponding to the first connecting portion, and the end of the first connecting member away from the fixture assembly is correspondingly inserted and fixed in the second connecting portion.

[0010] Preferably, for a clamping and fixing mechanism, the clip assembly includes:

[0011] At least one connecting seat, and the second connecting portion is formed on the connecting seat;

[0012] At least two clip members, spaced and oppositely arranged on the connecting seat, and any one of the clip members is movably arranged on the connecting seat along the thickness direction of the connecting seat, and the clip member can switch between a clamping state of moving in the direction towards the connecting seat and reducing the distance from the surface of the connecting seat and a releasing state of moving in the direction away from the connecting seat and increasing the distance from the surface of the connecting seat.

[0013] Preferably, for a clamping and fixing mechanism, the first connecting portion is a connecting pipe along the extending direction of the first connecting member, and the second connecting portion is a connecting hole arranged on the connecting seat along the extending direction of the first connecting member.

[0014] Preferably, for a clamping and fixing mechanism, the connecting hole is a through hole, at least part of the end of the first connecting member away from the fixture assembly extends out of the connecting hole, and the clip assembly further includes a limiting member abutted against the bottom of the connecting seat and connected to the part of the first connecting member extending out of the connecting hole.

[0015] Preferably, for the clamping and fixing mechanism described above, the connecting seat is slidably arranged on the first connecting member, and an interlock is formed between the connecting seat and the first connecting member.

[0016] Preferably, for the clamping and fixing mechanism described above, the connecting seat has a first surface and a second surface on opposite sides along its thickness direction;

[0017] The material clamping component includes:

[0018] A first clamping plate, arranged facing the first surface;

[0019] A second clamping plate, arranged facing the second surface;

[0020] A linkage member, movably inserted into a moving hole opened on the connecting seat, and two ends of the linkage member are respectively adapted to be connected to the first clamping plate and the second clamping plate;

[0021] A biasing member, one end of which abuts against the end face of the first clamping plate facing the first surface, and the other end abuts against the connecting seat. The biasing member is adapted to apply a biasing force to the first clamping plate in a direction away from the first surface, and the second clamping plate is adapted to move towards the second surface under the action of the biasing force to clamp and fix the lower edge of the circuit board on the second surface.

[0022] Preferably, for the clamping and fixing mechanism described above, the linkage member is a spring shaft, the biasing member is a spring sleeved on the spring shaft, the diameter of the biasing member is larger than that of the moving hole, and the other end of the biasing member abuts against the first surface.

[0023] Preferably, for the clamping and fixing mechanism described above, the linkage member is a spring shaft, the biasing member is a spring sleeved on the spring shaft, the moving hole is a stepped hole and the diameter of the end close to the first clamping plate is larger than that of the end close to the second clamping plate, and the other end of the biasing member abuts against the stepped hole.

[0024] Preferably, for the clamping and fixing mechanism described above, the material clamping component further includes a positioning member, one end of the positioning member is fixedly arranged on the second clamping plate, and the other end is inserted into a positioning hole opened on the connecting seat, and the extending direction of the positioning hole is consistent with the axial direction of the linkage member.

[0025] Preferably, for the clamping and fixing mechanism described above, the positioning member includes an elastic member with one end connected to the second clamping plate and a positioning bead connected to the other end of the elastic member. The positioning bead is fixed in the positioning hole, and the elastic member is adapted to apply a biasing force to the second clamping plate towards the second surface.

[0026] Preferably, for the described clamping and fixing mechanism, a boss protruding outward is further provided on the second surface of the connecting seat, and the boss avoids the movement path of the material clamping component, and the lower edge of the circuit board is adapted to abut against the boss.

[0027] Preferably, for the described clamping and fixing mechanism, there are two first connecting members, and the two first connecting members are arranged at opposite ends of the fixture assembly or the material clamping assembly, and the frame structure is a closed frame structure jointly enclosed by the fixture assembly, the material clamping assembly and the two first connecting members.

[0028] Preferably, for the described clamping and fixing mechanism, the two first connecting members are movably arranged relative to each other between the fixture assembly and the material clamping assembly.

[0029] Preferably, for the described clamping and fixing mechanism, there are two connecting seats, and the two connecting seats correspond to the two first connecting members respectively and are connected by a second connecting member;

[0030] The fixture assembly includes a jaw fixing member, two jaw connecting members arranged at opposite ends of the jaw fixing member, and a plurality of spaced-apart jaws connected to the bottom of the jaw connecting members and adapted to clamp the upper edge of the circuit board. The first connecting parts are respectively arranged on the jaw connecting members, and the two first connecting parts correspond to the two first connecting members.

[0031] Preferably, for the described clamping and fixing mechanism, the two connecting seats are slidably connected between the second connecting members, and the two jaw connecting members are slidably arranged at both ends of the jaw fixing member.

[0032] Preferably, for the described clamping and fixing mechanism, the second connecting member includes:

[0033] A connecting sleeve with a sliding cavity inside;

[0034] Two adjusting members movably arranged at both ends of the connecting sleeve. One end of any one of the adjusting members is connected to one of the connecting seats, and the other end is movably inserted into the sliding cavity.

[0035] Preferably, for the described clamping and fixing mechanism, at least one adjusting groove extending along the movement direction of the adjusting member is formed on the outer wall of the connecting sleeve;

[0036] Any one of the adjusting members includes an adjusting part and a locking part that can be inserted into the adjusting groove and connected to the adjusting part and can lock the adjusting member in the sliding cavity;

[0037] Any one of the adjusting members can be switched between an adjusting state in which the corresponding adjusting member slides in the sliding cavity to adjust the distance between the two connecting seats and a locking state in which the adjusting member is fixed in the sliding cavity by the locking member;

[0038] In the locking state, the locking member abuts against the outer wall of the adjusting groove; in the adjusting state, there is a movable gap between the locking member and the outer wall of the adjusting groove.

[0039] Preferably, in the clamping and fixing mechanism, there are two adjusting grooves, which are symmetrically formed on the outer wall of the connecting sleeve and correspond to the two adjusting members one by one.

[0040] Preferably, in the clamping and fixing mechanism, the locking member is a bolt.

[0041] The present invention also provides a hanger, which includes a conductive plate, the clamping and fixing mechanism described in any one of the above items, and a transmission component, and the transmission component is arranged on the conductive plate and drives the conductive plate to move.

[0042] The technical solution of the present invention has the following advantages:

[0043] 1. The clamping and fixing mechanism provided by the present invention includes a fixture assembly adapted to be fixed to the bottom of the conductive plate, and the fixture assembly is adapted to clamp the upper edge of the circuit board, and further includes:

[0044] At least one first connecting member, one end of the first connecting member is adapted to be connected to the fixture assembly, and the other end is adapted to extend in a direction away from the fixture assembly and the first connecting member is an insulating member;

[0045] A material clamping assembly, which is spaced opposite to the fixture assembly and connected to the other end of the first connecting member, is adapted to clamp the lower edge of the circuit board, and the material clamping assembly, the first connecting member and the fixture assembly together enclose a frame structure with a clamping cavity, and the circuit board is adapted to have its upper edge and lower edge both clamped and fixed in the clamping cavity.

[0046] The clamping and fixing mechanism of this structure connects the fixture assembly and the material clamp assembly through at least one first connecting piece to form a frame structure with a clamping frame. The upper edge of the circuit board is clamped and fixed by the fixture assembly, and the lower edge of the circuit board is clamped and fixed by the material clamp assembly, so that the circuit board is clamped and fixed in the clamping cavity, ensuring the verticality of the thin plate with a thickness of 0.3 mm or less when suspended on the hanger, so that the circuit board does not shake during the entire electroplating process such as in the electroplating tank and during transfer between different electroplating tanks, and the thin plate does not contact the wall of the electroplating tank and can freely enter the tank. In addition, since the first connecting piece is an insulating piece, the current of the conductive plate will not be conducted to the first connecting piece and the material clamp assembly, ensuring that the metal cations in the electroplating solution can only react with the cathode electricity guided to the circuit board through the conductive plate to realize electroplating of the circuit board, greatly saving the electroplating solution.

[0047] 2. For the clamping and fixing mechanism provided by the present invention, the two opposite sides of the fixture assembly along its thickness direction are respectively a first side surface and a second side surface, and at least one first connecting portion is provided on the first side surface, and one end of the first connecting piece close to the fixture assembly is correspondingly inserted and fixed in the first connecting portion;

[0048] The material clamp assembly is provided with a second connecting portion corresponding to the first connecting portion, and the other end of the first connecting piece away from the fixture assembly is correspondingly inserted and fixed in the second connecting portion. Fix one end of the first connecting piece on the first connecting portion of the first side surface of the fixture assembly, and fix the other end of the first connecting piece on the second connecting portion corresponding to the first connecting portion on the material clamp assembly to ensure the flatness of the circuit board surface when the circuit board is clamped in the clamping cavity, and avoid the circuit board from being skewed and affecting the uniformity of electroplating.

[0049] 3. For a clamping and fixing mechanism provided by the present invention, the first connecting portion is a through hole, and at least a part of the other end of the first connecting piece away from the jaw fixing plate extends out of the connecting hole, and the material clamp assembly further includes a limiting member that abuts against the bottom of the connecting seat and is connected to the part of the first connecting piece extending out of the connecting hole. The connecting seat is supported and limited by the limiting member, so that the connecting seat is fixed to the first connecting piece.

[0050] 4. For a clamping and fixing mechanism provided by the present invention, the connecting seat is slidably arranged on the first connecting piece, and an interlock is formed between the connecting seat and the first connecting piece. The interval between the fixture assembly and the material clamp assembly can be adjusted, that is, the size of the clamping cavity can be adjusted, which can adapt to circuit boards of different heights, expanding the scope of application, and there is no need to develop corresponding clamping and fixing mechanisms for circuit boards of different sizes. At the same time, the interlock setting is adopted to avoid adding other locking structures, and the structure is simpler.

[0051] 5. A hanger provided by the present invention, wherein the connecting seat has a first surface and a second surface opposite to each other along the thickness direction thereof, the first surface and the first side surface are arranged on the same side, and the second surface and the second side surface are arranged on the same side;

[0052] The material clamping component comprises:

[0053] A first clamping plate, disposed facing the first surface;

[0054] A second clamping plate, disposed facing the second surface;

[0055] A linkage member, movably inserted into a movable hole provided on the connecting seat, wherein two ends of the linkage member are suitable for being connected to the first clamping plate and the second clamping plate respectively;

[0056] A biasing member, one end of which abuts against the end surface of the first clamping plate facing the first surface, and the other end abuts against the connecting seat. The biasing member is suitable for applying a biasing force to the first clamping plate away from the first surface, and the second clamping plate is suitable for moving toward the second surface under the action of the biasing force to clamp and fix the lower edge of the circuit board on the second surface. The first clamping plate and the second clamping plate can be linked by the linkage member, and the biasing force of the biasing member can automatically clamp and fix the lower edge of the circuit board. When opening the clamp, it is only necessary to overcome the biasing force so that a gap is formed between the second clamping plate and the second surface for the lower edge of the circuit board to be clamped, without the need to use other tools to apply pressure to the clamping component for clamping.

[0057] 6. In the hanger provided by the present invention, the first connecting members include two, the two first connecting members are arranged at opposite ends of the clamp assembly or the material clamp assembly, and the frame structure is a closed frame structure enclosed by the clamp assembly, the material clamp assembly and the two first connecting members. The structure is more stable and reliable.

[0058] 7. In the hanger provided by the present invention, the connecting seats include two, the two connecting seats respectively correspond to the two first connecting members and are connected through the second connecting member;

[0059] The clamp assembly includes a clamping claw fixing member, two clamping claw connecting members arranged at opposite ends of the clamping claw fixing member, and a plurality of spaced-apart clamping claws connected to the bottom of the clamping claw connecting member and suitable for clamping the upper edge of the circuit board, wherein the first connecting parts are respectively arranged on the clamping claw connecting members and the two first connecting parts correspond to the two first connecting members. The two connecting seats and the two clamping claw connecting members are arranged to slide relative to each other, so that the width direction of the clamping cavity of the frame structure is adjustable to accommodate circuit boards of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0061] Figure 1 It is a front view structural schematic diagram of the clamping and fixing mechanism in the embodiment of the present invention, which is connected to the conductive plate and clamps a circuit board;

[0062] Figure 2 It is a front view structural schematic diagram of the clamping and fixing mechanism in the embodiment of the present invention, which is connected to the conductive plate and does not clamp a circuit board;

[0063] Figure 3 It is a side view structural schematic diagram of the clip assembly of the clamping and fixing mechanism in the embodiment of the present invention;

[0064] Figure 4 For Figure 3 It is a structural schematic diagram of the clip part of the clip assembly in

[0065] Figure 5 For Figure 3 It is a structural schematic diagram of the connecting seat of the clip assembly in

[0066] Figure 6 It is a structural schematic diagram of the second connecting member of the clamping and fixing mechanism in the embodiment of the present invention;

[0067] Figure 7 It is a structural schematic diagram of the connection between the conductive plate and the fixture assembly of the clamping and fixing mechanism in the embodiment of the present invention;

[0068] Figure 8 It is a structural schematic diagram of the hanger in the second embodiment of the present invention.

[0069] Explanation of reference numerals:

[0070] 1 - First connecting member;

[0071] 2 - Clip assembly; 21 - Connecting seat; 210 - Boss; 211 - First surface; 212 - Second surface; 213 - Second connecting portion; 214 - Moving hole; 215 - Positioning hole; 216 - Limiting block; 22 - Clip part; 221 - First clamping plate; 222 - Second clamping plate; 2221 - Fixed plate; 2222 - Clamping plate; 223 - Linking member; 224 - Biasing member; 225 - Positioning member; 2251 - Elastic member; 2252 - Positioning bead; 23 - Second connecting member; 231 - Connecting sleeve; 232 - Adjusting member; 233 - Adjusting groove; 24 - Limiting member;

[0072] 3 - Fixture assembly; 31 - Jaw fixing member; 311 - Jaw connecting member; 312 - Conductive rod; 313 - Hanging plate; 314 - First connecting portion; 32 - Jaw; 321 - Fixed jaw; 322 - Movable jaw;

[0073] 4 - Conductive plate;

[0074] 5 - Circuit board;

[0075] 6 - Lifting device. Detailed implementation manner

[0076] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0077] Embodiment 1

[0078] A clamping and fixing mechanism of this embodiment, as Figures 1 to 8 shown, includes a fixture assembly 3, a material clamp assembly 2 and two first connecting members 1. The fixture assembly 3, the material clamp assembly 2 and the two first connecting members 1 jointly enclose a closed square frame structure with a square clamping cavity. The fixture assembly 3 is located above the square frame structure and is suitable for clamping the upper edge of the circuit board 5. The material clamp assembly 2 is located below the square frame structure and is suitable for clamping the lower edge of the circuit board 5. That is to say, the circuit board 5 is suitable for being clamped and fixed at the same time at the upper edge and the lower edge in the clamping cavity within the square frame structure.

[0079] For the material clamp assembly 2, it includes two connecting seats 21, two material clamp members 22 and a second connecting member 23. Each material clamp member 22 corresponds to a connecting seat 21, and the two connecting seats 21 are connected by the second connecting member 23. Specifically, as Figure 5 shown, the connecting seat 21 is in an L shape and includes a seat body and a connecting body protruding upward on the left side of the top of the seat body. The connecting body is provided with a second connecting portion 213 suitable for connecting with the bottom end of the first connecting member 1. Specifically, the second connecting portion 213 is a connecting hole extending along the axial direction of the connecting body, and this connecting hole is a connecting through hole that penetrates the entire connecting seat 21 up and down. A limiting member 24 is provided at the bottom of the connecting seat 21, and this limiting member can be connected to the part of the first connecting member 1 extending out of the connecting through hole, playing a role in supporting and limiting the connecting seat 21, so that the connecting seat 21 is firmly fixed on the first connecting member 1. For the sake of easy description, as Figure 5The rear surface of the seat body shown is described as the first surface 211, and the front surface is described as the second surface 212. Among them, the front surface, that is, the first surface 211, is a plane, and on the left side of the rear surface, that is, the second surface 212, there is a boss 210 that protrudes forward and extends, that is, as Figure 3 shown, it protrudes to the right end and extends. The boss 210 is stepped and is suitable for supporting the lower edge of the circuit board 5. That is to say, when the lower edge of the circuit board 5 is clamped in the clamping cavity, it is suitable to abut against the boss 210. Three triangularly distributed movable holes 214 are opened on the second surface 212. The movable holes 214 penetrate the seat body from front to back. The material clamping member 22 is suitable for being movably arranged on the connecting seat 21, and the boss 210 avoids the movement path of the material clamping member 22. On the right side of the second surface 212, there is a forwardly protruding limit block 216. The upper surface of the limit block 216 is substantially flush with the upper surface of the boss 210. The limit block 216 and the boss 10 are arranged at a relative interval to define a movable space for the material clamping member 22 to move. The material clamping member 22 is suitable for being movably arranged in this movable space. The limit block 216 can also be used as a support and positioning for the lower edge of the circuit board 5. A positioning hole 215 is also provided below the boss 210 on the second surface 212. The positioning hole 215 is suitable for installing a positioning member 225. Optionally, the number of the movable holes 214 can also be other numbers, such as one, two, four, etc. The second connecting member 23 is connected between the two connecting seats 21. Optionally, the second connecting member 23 can be telescopic to adjust the interval between the two connecting seats 21, so as to clamp and fix circuit boards 5 with different widths. Similarly, the fixture assembly 3 can also be adjusted synchronously with the connecting seat 21 in the width direction of the circuit board 5, that is, as Figure 1 shown, in the left-right direction. As an alternative embodiment, that is, the second connecting member 23 can be not provided, and only one connecting seat 21 is included. The connecting seat 21 is a long strip-shaped connecting seat 21 that extends in the width direction of the circuit board 5. As another alternative embodiment, the boss 210 and the limit block 216 can be not provided, that is, the lower edge of the circuit board 5 is directly clamped by the material clamping member 22. As an alternative embodiment, the limiting member 24 can also be not provided, and the first connecting member 1 and the connecting seat 21 can be fixed by thread interlocking.

[0080] For the material clamping member 22, as Figure 4As shown, it includes a first clamping plate 221, a second clamping plate 222, a linkage member 223, a biasing member 224 and a positioning member 225. The first clamping plate 221 and the second clamping plate 222 are arranged relatively spaced apart. The first clamping plate 221 is arranged facing the first surface 211, and the second clamping plate 222 is arranged facing the second surface 212. The first clamping plate 221 and the second clamping plate 222 are connected by the linkage member 223, and the linkage member 223 is movably inserted into the movable hole 214. The biasing member 224 is sleeved on the linkage member 223. It should be noted that the diameter of the biasing member 224 is slightly larger than the diameter of the movable hole 214, so that one end of the biasing member 224 abuts against the end face of the first clamping plate 221 facing the first surface 211, that is, as Figure 4On the front end face of the first clamping plate 221 shown, the other end abuts against the outer periphery of the movable hole 214, that is, the first surface 211, so that the biasing member 224 applies a biasing force to the first clamping plate 221 in a direction away from the second clamping plate 222. The second clamping plate 222 is driven by the linkage member 223 to approach the second surface 212 to clamp the circuit board 5. When it is necessary to unclamp, only need to apply a pushing force to the first clamping plate 221 in the direction towards the second clamping plate 222 or apply a pulling force to the second clamping plate 222 to overcome the biasing force of the biasing member 224 so that there is a gap between the second clamping plate 222 and the second surface 212 for clamping the circuit board 5. For the linkage member 223, it can be an existing conventional spring shaft. For the biasing member 224, it can be an existing conventional tubular spring. As an alternative embodiment, the movable hole 214 is a stepped hole. Specifically, the aperture facing the first clamping plate 221 is larger than the aperture facing the second clamping plate 222, and one end of the biasing member 224 abuts against the end face of the first clamping plate 221 facing the first surface 211, and the other end abuts in the stepped hole. As another alternative embodiment, one end of the biasing member 224 can also abut against the second clamping plate 222, and the other end abuts against the second surface 212 or in the stepped hole. At this time, the biasing force applied by the biasing member 224 to the second clamping plate 222 is towards the first clamping plate 221. When unclamping, the same method is adopted, that is, applying a pushing force to the first clamping plate 221 in the direction towards the second clamping plate 222 or applying a pulling force to the second clamping plate 222 in a direction away from the first clamping plate 221 so that a gap for clamping the circuit board 5 is formed between the second clamping plate 222 and the second surface 212. Optionally, a positioning member 225 is further provided on the second clamping plate 222, and the positioning member 225 corresponds to the positioning hole 215 on the connecting seat 21. Specifically, the positioning member 225 includes an elastic member 2251 and a positioning bead 2252. The elastic member 2251 is an existing conventional tubular spring coaxially arranged with the positioning hole 215 or the linkage member 223. One end of the elastic member 2251 is fixedly connected to the end face of the second clamping plate 222 facing the second surface 212, and the other end extends towards the positioning hole 225 and is fixed with a positioning bead 2252. The aperture of the positioning bead 2252 is equal to or slightly larger than the positioning hole 215, and the elastic member 2251 is adapted to apply a biasing force to the second clamping plate 222 towards the second surface 212. Optionally, the positioning member 225 can also be other structures, such as a spring shaft structure. For the number of the linkage members 223, it corresponds one-to-one with the movable holes 214, and it can also be other numbers, such as one, two, four, etc.Optionally, the second clamping plate 222 includes a fixing plate 2221 and a clamping plate 2222. The fixing plate 2221 has the same structure as the first clamping plate 221. The clamping plate 2222 is disposed on the end face of the second clamping plate 222 facing the second surface 212, and its height is slightly higher than that of the fixing plate 2221. The width of the clamping plate 2222 is adapted to the distance between the boss 210 and the limiting block 216, that is, the clamping plate 2222 can move towards or away from the second surface 212 within the moving space between the boss 210 and the limiting block 216, so as to clamp the lower edge of the circuit board 5. As an alternative embodiment, the positioning member 225 may not be provided.

[0081] For the second connecting member 23, as Figure 6 shown, it includes a tubular connecting sleeve 231 and two adjusting members 232 that are relatively movably disposed at both ends of the connecting sleeve 231. The connecting sleeve 231 has a sliding cavity, and the two adjusting members 232 are slidably disposed in the sliding cavity, one on the left and the other on the right. In order to enable the two adjusting members 232 to be fixed relative to the connecting sleeve 231 within the connecting sleeve 231 when no adjustment is required, two adjusting grooves 233 extending along the axial direction of the connecting sleeve 231, that is, in the left-right direction as Figure 6 shown, are provided on the connecting sleeve 231. The two adjusting grooves 233 are not communicated with each other. Each adjusting member 232 includes a rod-shaped adjusting part and a locking member that can be inserted into the corresponding adjusting groove 233 and connected to the adjusting part. The locking member can lock the adjusting part after adjustment, so that the distance between the two adjusting parts is fixed. Specifically, the adjusting groove 233 is an oblong hole, and the locking member is threadedly connected to the adjusting part. The locking member is in a T shape, and includes a connecting part connected to the adjusting part with a diameter smaller than that of the adjusting groove 233 and a locking part connected to the connecting part with a diameter larger than that of the adjusting groove 233. The end face of the locking part facing the adjusting groove 233 is a locking surface, and the locking surface can be pressed against the outer wall of the adjusting groove 233 to lock the adjusting part and fix it in the sliding cavity to switch to the locking state. At this time, the two adjusting parts cannot be adjusted relatively. When the two adjusting parts need to be adjusted, only the locking member needs to be loosened in the reverse direction, so that the locking surface of the locking member does not press against the outer wall of the adjusting groove 233, that is, there is a clearance between the locking surface and the connecting sleeve 231 to switch to the adjusting state. Optionally, the locking member is a conventional bolt. As an alternative embodiment, the adjusting groove 233 may also include only one. As another alternative embodiment, the adjusting part may also include only one. For example, one end of the adjusting part is connected to one of the connecting seats 21, and the other end is slidably sleeved with the connecting sleeve 231. One end of the connecting sleeve 231 is slidably sleeved with the adjusting part, and the other end is connected to the other connecting seat 21. Correspondingly, only one adjusting groove 233 is provided.

[0082] For the first connecting member 1, as Figure 1As shown, it is rod-shaped, and can also be other shapes, without detailed description and limitation specifically. As long as it can be connected to the fixture assembly 3 and the clamping clip assembly 2 to form a frame structure for clamping the upper and lower edges of the circuit board 5. Regarding the number of the first connectors 1, it can be two as shown in Figure 1 , and are oppositely arranged on both sides in the width direction of the circuit board 5, that is, on the left and right sides as shown in Figure 1 . It can also be only one, arranged on one side of the fixture assembly 3 and the clamping clip assembly 2 (that is, it can be on the left side or the right side as shown in Figure 1 ), and enclose an unclosed U-shaped frame structure with the fixture assembly 3 and the clamping clip assembly 2. The first connector 1 and the connection seat 21 can be fixedly connected or movably connected. Specifically, the connection seat 21 moves axially along the first connector 1, that is, moves up and down as shown in Figure 1 , so as to adapt to the clamping requirements of circuit boards 5 of different lengths. In order to make the connection seat 21 relatively fixed to the first connector 1 after adjusting axially along the first connector 1, the first connector 1 and the connection seat 21 are interlocked. For example, the first connector 1 is a lead screw, and the second connecting portion 213 is a threaded through hole, and the interlock is achieved through the thread, saving the addition of fixing parts, simplifying the structure and components, and saving costs.

[0083] For the fixture assembly 3, it includes a jaw fixing member 31, a jaw connecting member 311 and jaws 32. The jaw fixing member 31 is arranged at the bottom of the conductive plate 4. The jaw connecting member 311 includes two, and is relatively movably arranged at both ends of the jaw fixing member 31, that is, it can move in the width direction of the circuit board 5, that is, move left and right as shown in Figure 1 . The jaws 32 are arranged on the conductive plate 4 and the jaw connecting member 311. For distinction, the jaws 32 at the bottom end of the conductive plate 4 are described as fixed jaws 321, and the jaws 32 on the two jaw connecting members 311 are described as movable jaws 322. That is to say, the distance between the jaws 32 connected to the bottom end of the conductive plate 4 is not adjustable, while the interval between the two jaws 32 connected to the two jaw connecting members 311 can be adjusted by adjusting the distance between the two jaw connecting members 311. It should be noted that the jaw connecting member 311 includes a conductive rod 312 and a hanging plate 313. The specific structure can be seen in the structure in the Chinese patent CN111441076A applied by the applicant before, which is not the inventive point of this application. Specifically on the fixture assembly 3, a first connecting portion 314 for connecting to the top end of the first connector 1 is provided on the hanging plate 313. Specifically, as shown in Figure 7 , for the convenience of distinction and description, as shown in Figure 7The front end face of the hanging plate 313 shown is described as the first side face, and the rear end face of the hanging plate 313 is described as the second side face. The first connecting portion 314 is provided on the first side face. The first side face corresponds to the first surface 211 of the connecting seat 21, and the second side face corresponds to the second surface 212 of the connecting seat 21. That is to say, the first side face and the first surface 211 are on the same side, and the second side face and the second surface 212 are on the same side. This setting is to ensure the perpendicularity of the circuit board 5. Since the material clamping member 22 clamps the circuit board 5 towards the second surface 212, the first connecting portion 314 is provided on the first side face. When the enclosed frame structure clamps the circuit board 5, the upper edge of the circuit board 5 is located on the second side face, and the lower edge is located in the gap between the second surface 212 and the second clamping plate 222, thereby ensuring the perpendicularity of the circuit board 5. There are two first connecting portions 314, which are respectively provided on the first side faces of the two hanging plates 313. Specifically, it is a square column-shaped connecting pipe adapted to the first connecting member 1. Optionally, a groove can be provided on the outer wall of the connecting pipe. The setting of this groove is to facilitate the adaptation to the top end of the first connecting member 1. That is to say, a groove is also provided at the top end of the first connecting member 1. When the two grooves correspond to each other, it indicates that the two are installed in place. Optionally, the first connecting member 1 and the first connecting portion 314 are fixedly connected by bolts.

[0084] Embodiment 2

[0085] A fixture of this embodiment, as Figure 8 shown, includes a conductive plate 4, the clamping and fixing mechanism of Embodiment 1, and a transmission component. The transmission component is arranged on the conductive plate 4 and drives the conductive plate 4 to move. A lifting device 6 is also provided above the conductive plate 4. The specific structures and connection manners of the conductive plate 4 and the transmission component are not described and limited in detail here. Specifically, reference can be made to the fixture structure of Chinese Patent CN111334841A applied by the applicant before.

[0086] Obviously, the above embodiments are only examples given for clear illustration, and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A clamping and fixing mechanism, comprising a fixture assembly (3) adapted to be fixed to the bottom of a conductive plate (4), the fixture assembly (3) being adapted to clamp the upper edge of a circuit board (5), characterized in that, Further included are: At least one first connecting member (1), one end of the first connecting member (1) is adapted to be connected to the fixture assembly (3), the other end is adapted to extend away from the fixture assembly (3), and the first connecting member (1) is an insulating member; A stock clamp assembly (2), spaced opposite to the fixture assembly (3) and connected to the other end of the first connecting member (1), adapted to clamp the lower edge of the circuit board (5), and the stock clamp assembly (2), the first connecting member (1) and the fixture assembly (3) together enclose a border structure with a clamping cavity, and the circuit board (5) is adapted to have its upper and lower edges clamped and fixed in the clamping cavity; On two opposite sides of the fixture assembly (3) along its thickness direction are respectively a first side surface and a second side surface, wherein at least one first connecting portion (314) is provided on the first side surface, and one end of the first connecting member (1) close to the fixture assembly (3) is correspondingly inserted and fixed in the first connecting portion (314); A second connecting portion (213) corresponding to the first connecting portion (314) is provided on the stock clamp assembly (2), and one end of the first connecting member (1) away from the fixture assembly (3) is correspondingly inserted and fixed in the second connecting portion (213); The stock clamp assembly (2) includes: At least one connecting seat (21), and the second connecting portion (213) is formed on the connecting seat (21); At least two stock clamp members (22), spaced and oppositely arranged on the connecting seat (21), and any one of the stock clamp members (22) is movably arranged on the connecting seat (21) along the thickness direction of the connecting seat (21), and the stock clamp member (22) can be switched between a clamping state of moving towards the connecting seat (21) and reducing the distance from the surface of the connecting seat (21) and a releasing state of moving away from the connecting seat (21) and increasing the distance from the surface of the connecting seat (21); The first connecting portion (314) is a connecting pipe along the extending direction of the first connecting member (1), and the second connecting portion (213) is a connecting hole arranged on the connecting seat (21) along the extending direction of the first connecting member (1); The connecting seat (21) is slidably arranged on the first connecting member (1), and an interlock is formed between the connecting seat (21) and the first connecting member (1); On two opposite sides of the connecting seat (21) along its thickness direction are respectively a first surface (211) and a second surface (212); The stock clamp member (22) includes: A first clamping plate (221), arranged facing the first surface (211); A second clamping plate (222), arranged facing the second surface (212); A linkage member (223), movably inserted into a moving hole (214) formed on the connecting seat (21), and two ends of the linkage member (223) are adapted to be respectively connected to the first clamping plate (221) and the second clamping plate (222); The biasing member (224) has one end abutted against the end surface of the first clamping plate (221) facing the first surface (211), and the other end abutted against the connecting seat (21). The biasing member (224) is adapted to apply a biasing force to the first clamping plate (221) in a direction away from the first surface (211). The second clamping plate (222) is adapted to move towards the second surface (212) under the action of the biasing force to clamp and fix the lower edge of the circuit board (5) on the second surface (212).

2. The clamping and fixing mechanism according to claim 1, wherein, The connection hole is a through hole. One end of the first connecting member (1) away from the fixture assembly (3) at least partially extends outside the connection hole. The material clamping assembly (2) further includes a limiting member (24) abutted against the bottom of the connecting seat (21) and connected to the part of the first connecting member (1) extending outside the connection hole.

3. A clamping and fixing mechanism according to claim 1, characterized in that, The linkage member (223) is a spring shaft, and the biasing member (224) is a spring sleeved on the spring shaft. The diameter of the biasing member (224) is larger than the movable hole (214), and the other end of the biasing member (224) abuts against the first surface.

4. The clamping and fixing mechanism according to claim 2, characterized in that, The linkage member (223) is a spring shaft, and the biasing member (224) is a spring sleeved on the spring shaft. The movable hole (214) is a stepped hole, and the diameter of the end closer to the first clamping plate (221) is larger than the diameter of the end closer to the second clamping plate (222). The other end of the biasing member (224) abuts against the stepped hole.

5. A clamping and fixing mechanism according to claim 1 or 3 or 4, characterized in that The material clamping member (22) further includes a positioning member (225). One end of the positioning member (225) is fixedly provided on the second clamping plate (222), and the other end is inserted into a positioning hole (215) formed in the connecting seat (21). The extending direction of the positioning hole (215) is the same as the axial direction of the linkage member (223).

6. The clamping and fixing mechanism according to claim 5, characterized in that, The positioning member (225) includes an elastic member (2251) with one end connected to the second clamping plate (222) and a positioning bead (2252) connected to the other end of the elastic member (2251). The positioning bead (2252) is fixed in the positioning hole (215), and the elastic member (2251) is adapted to apply a biasing force to the second clamping plate (222) towards the second surface (212).

7. A clamping and fixing mechanism according to claim 1, wherein, A boss (210) protruding and extending outwards is further provided on the second surface (212) of the connecting seat (21), and the boss (210) avoids the movement path of the material clamping member (22). The lower edge of the circuit board (5) is adapted to abut against the boss (210).

8. A clamping and fixing mechanism according to claim 1, characterized in that, There are two first connecting members (1). The two first connecting members (1) are arranged at opposite ends of the fixture assembly (3) or the material clamping assembly (2). The frame structure is a closed frame structure jointly enclosed by the fixture assembly (3), the material clamping assembly (2), and the two first connecting members (1).

9. A clamping and fixing mechanism according to claim 8, wherein The two first connecting members (1) are movably arranged relative to each other between the fixture assembly (3) and the material clamping assembly (2).

10. A clamping and fixing mechanism according to claim 8 or 9, characterized in that The connecting seats (21) include two, and the two connecting seats (21) respectively correspond to the two first connecting members (1) and are connected by a second connecting member (23); The fixture assembly (3) includes a jaw fixing member (31), two jaw connecting members provided at opposite ends of the jaw fixing member, and a plurality of spaced-apart jaws (32) connected to the bottom of the jaw connecting members and adapted to clamp the upper edge of the circuit board (5). The first connecting portions (314) are respectively provided on the jaw connecting members (311), and the two first connecting portions (314) correspond to the two first connecting members (1).

11. A clamping and fixing mechanism according to claim 10, characterized in that, The two connecting seats (21) are slidably connected between the second connecting members (23), and the two jaw connecting members are slidably provided at both ends of the jaw fixing member.

12. A clamping and fixing mechanism according to claim 11, characterized in that, The second connecting member (23) includes: A connecting sleeve (231) having a sliding cavity therein; Two adjusting members (232) slidably provided at both ends of the connecting sleeve (231). One end of any one of the adjusting members (232) is connected to one of the connecting seats (21), and the other end is slidably inserted into the sliding cavity.

13. A clamping and fixing mechanism according to claim 12, characterized in that, At least one adjusting groove (233) extending along the moving direction of the adjusting member (232) is formed on the outer wall of the connecting sleeve (231); Any one of the adjusting members (232) includes an adjusting part and a locking part that can be inserted into the adjusting groove (233) and connected to the adjusting part to lock the adjusting member (232) in the sliding cavity; Any one of the adjusting members (232) can be switched between an adjusting state in which the corresponding adjusting part slides in the sliding cavity to adjust the distance between the two connecting seats (21) and a locking state in which the adjusting member is fixed in the sliding cavity by the locking part; In the locking state, the locking part abuts against the outer wall of the adjusting groove (233); in the adjusting state, there is a moving gap between the locking part and the outer wall of the adjusting groove (233).

14. A clamping and fixing mechanism according to claim 13, characterized in that, There are two adjusting grooves (233), symmetrically formed on the outer wall of the connecting sleeve (231), and corresponding to the two adjusting members (232) one by one.

15. A clamping and fixing mechanism according to claim 14, wherein, The locking part is a bolt.

16. A jig, characterized in that It includes a conductive plate (4), the clamping and fixing mechanism according to any one of claims 1-15, and a transmission assembly. The transmission assembly is provided on the conductive plate (4) and drives the conductive plate (4) to move.

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