Clamping jig

Abstract

The utility model discloses a clamping jig which comprises a mounting plate and a fixed clamping assembly, and the fixed clamping assembly is connected with the mounting plate. The clamping device further comprises a fixing mechanism, a movable plate and a movable clamping assembly arranged on the movable plate, the movable plate is used for driving the movable clamping assembly to be close to or away from the fixed clamping assembly, and the movable plate is fixed to the mounting plate through the fixing mechanism. The circuit board clamping jig can be suitable for circuit boards of different sizes, the problem that an existing circuit board clamping jig cannot clamp the circuit boards of different sizes is solved, and in addition, the circuit board clamping jig can clamp a plurality of circuit boards at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board manufacturing, in particular to a clamping fixture. Background Art

[0002] Flexible printed circuits (FPC) and rigid printed circuits (PCB) each have their own unique applications in electronic products. FPC is widely used in many portable and bending electronic devices due to its light weight, thinness and good bending properties. Rigid printed circuits (PCB), due to their stable structure, usually adopt more automated production processes, such as automatic board feeders, precision automated printing and mounting equipment, to improve production efficiency and processing accuracy. In the traditional FPC processing process, manual methods are often used to fix the flexible printed circuit board on a special fixture by pasting, and then a series of production processes such as pasting reinforcement, back glue processing, QR code printing, solder paste printing, component mounting, reflow soldering and AOI optical inspection are carried out. After the processing process is completed, the tape needs to be removed manually to remove the processed FPC board. This operation method that relies on manual pasting and removal of tape requires high skills of the operator. It is not only difficult to ensure the processing accuracy, speed and product quality, but also leads to low production efficiency.

[0003] In view of this problem, the prior art discloses a clamping fixture with publication number CN220139818U. The clamping fixture is used to clamp a circuit board, and includes a mounting plate and a clamping assembly, wherein the mounting plate includes a first surface and a second surface opposite to each other, and the clamping assembly includes a pressing assembly and a control assembly, wherein the pressing member is located on the side where the first surface is located, and the control member is located on the side where the second surface is located and exposed to the second surface, and the control member can control the pressing member to move away from or approach the first surface, and the clamping assembly also includes a roller and an elastic element, and the roller is rotatably connected to the control member.

[0004] The clamping jig disclosed in the above prior art is only applicable to specific types of circuit boards in actual implementation, and cannot clamp circuit boards of different sizes. Moreover, when clamping a circuit board, the clamping capacity is limited to a single circuit board, and it is impossible to process multiple circuit boards at the same time, which affects production efficiency. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a clamping fixture to solve the problems raised by the above-mentioned background technology.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a clamping fixture, including a mounting plate and a fixed clamping assembly, wherein the fixed clamping assembly is connected to the mounting plate.

[0007] It also includes a fixing mechanism, a movable plate and a movable clamping assembly arranged on the movable plate, wherein the movable plate is used to drive the movable clamping assembly to approach or move away from the fixed clamping assembly, and the movable plate is fixed to the mounting plate through the fixing mechanism.

[0008] Preferably, the mounting plate includes a first surface of the mounting plate and a second surface of the mounting plate that are arranged opposite to each other, and the fixed clamping assembly includes a first pressing portion and a first control portion, the first pressing portion is located on the side where the first surface of the mounting plate is located, the first control portion is located on the side where the second surface of the mounting plate is located and exposed to the second surface of the mounting plate, and the first control portion is used to control the first pressing portion to move away from or approach the first surface of the mounting plate.

[0009] Preferably, the movable plate includes a first surface of the movable plate and a second surface of the movable plate; the movable clamping assembly includes a second pressing portion and a second control portion, the second pressing portion of the movable clamping assembly is located on the side where the first surface of the movable plate is located, the second control portion is located on the side where the second surface of the movable plate is located and exposed to the second surface of the movable plate, and the second control portion is used to control the second pressing portion to move away from or close to the first surface of the movable plate.

[0010] Preferably, the fixed clamping assembly further includes a first roller rotatably connected to the first control portion; and the movable clamping assembly further includes a second roller rotatably connected to the second control portion.

[0011] Preferably, a first accommodating groove is provided on the first control part, a first connecting shaft is provided in the first accommodating groove, the first connecting shaft passes through the first roller and is rotationally connected to the first roller; and a second accommodating groove is provided on the second control part, a second connecting shaft is provided in the second accommodating groove, the second connecting shaft passes through the second roller and is rotationally connected to the second roller.

[0012] Preferably, a first mounting groove is formed on the mounting plate, a first fixed shaft is arranged in the first mounting groove, the first fixed shaft passes through the first control part, and the first control part is rotatably connected to the first fixed shaft; the fixed clamping assembly also includes a first torsion spring, one end of the first torsion spring is connected to the first control part, and the other end of the first torsion spring is fixedly connected to the first fixed shaft.

[0013] A second mounting groove is provided on the movable plate, a second fixed shaft is provided in the second mounting groove, the second fixed shaft passes through the second control part, and the second control part is rotatably connected to the second fixed shaft; the movable clamping assembly also includes a second torsion spring, one end of the second torsion spring is connected to the second control part, and the other end of the second torsion spring is fixedly connected to the second fixed shaft.

[0014] Preferably, the number of the fixed clamping assemblies is at least two, the number of the movable clamping assemblies is at least two, and the number of the movable plates is at least two.

[0015] Preferably, a sliding groove for the movable plate to slide is provided on the first surface of the mounting plate.

[0016] Preferably, the fixing mechanism includes a plate body and a fixing member, the plate body is provided with fixing holes in a linear equidistant array, the movable plate is provided with a first waist-shaped hole, and the mounting plate is provided with a second waist-shaped hole, and the fixing member passes through the first waist-shaped hole, the second waist-shaped hole and the fixing holes on the plate body to fix the movable plate to the mounting plate.

[0017] Preferably, a notch penetrating through the first surface and the second surface of the mounting plate is provided on the mounting plate, and a protrusion is provided on the second surface of the movable plate of the movable plate, and the protrusion is slidably connected to the side of the notch.

[0018] Beneficial Effects

[0019] The utility model provides a clamping jig. By combining the design of a mounting plate, a fixed clamping assembly, a movable plate and a movable clamping assembly, the clamping jig can adapt to circuit boards of different sizes and types, including flexible circuit boards and rigid circuit boards, thereby enhancing the versatility and adaptability of the clamping jig. The adjustable spacing function provided by the movable plate and the movable clamping assembly allows the user to adjust the clamping spacing according to the specific size of the circuit board, ensuring accurate clamping of the circuit board, and can be applied to circuit boards of different sizes, thereby solving the problem that existing circuit board clamping jigs cannot clamp circuit boards of different sizes. The design of the clamping jig simplifies the operational complexity of traditional manual clamping of circuit boards and reduces the reliance on operator skills.

[0020] At least two fixed clamping components and two movable clamping components can be provided to clamp at least two circuit boards. In addition, in actual use, the positions of the movable plates can be adjusted so that the clamping fixture can clamp circuit boards with irregular borders at multiple points. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of a clamping fixture described in the utility model from a first perspective.

[0022] Figure 2 This is a schematic diagram of the stereoscopic structure of the clamping fixture described in the utility model from a second viewing angle.

[0023] Figure 3It is a schematic diagram of the top structure of a clamping fixture described in the utility model.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of a fixed clamping assembly of a clamping fixture described in the utility model from a first perspective.

[0025] Figure 5 This is a schematic diagram of the third perspective structure of a fixed clamping assembly of the clamping fixture described in the utility model.

[0026] Figure 6 It is a first-view stereoscopic structural schematic diagram of a movable clamping assembly and a movable plate of a clamping fixture described in the utility model.

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure from a second viewing angle of a movable clamping assembly and a movable plate of a clamping fixture described in the utility model.

[0028] Figure 8 The present invention is an exploded view of a movable clamping assembly and a movable plate of a clamping fixture.

[0029] Fig. 9 It is a three-dimensional structural schematic diagram of a movable clamping assembly of a clamping fixture described in the utility model.

[0030] Fig.10 It is a three-dimensional structural schematic diagram of a fixing mechanism of a movable clamping assembly of a clamping fixture described in the utility model.

[0031] In the figure: 1-mounting plate, 11-first surface of the mounting plate, 12-second surface of the mounting plate, 13-first mounting groove, 14-slide groove, 2-fixed clamping assembly, 21-first pressing part, 22-first control part, 221-first accommodating groove, 222-first connecting shaft, 23-first roller, 24-first torsion spring, 3-movable plate, 31-first surface, 32-second surface, 33-second mounting groove, 34-first waist-shaped hole, 35-protrusion, 4-first fixed shaft, 5-fixing mechanism, 51-plate body, 511-fixing hole, 52-fixing piece, 6-movable clamping assembly, 61-second pressing part, 62-second control part, 621-second accommodating groove, 622-second connecting shaft, 63-second roller, 64-second torsion spring, 7-second fixed shaft. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Flexible printed circuits (FPCs) play an important role in various electronic products due to their light, thin and bendable characteristics, while rigid printed circuits (PCBs) are widely used in many devices due to their high stability and easy automation. In the production process of FPCs, traditionally, the flexible printed circuits need to be fixed on the jig by manual pasting in order to carry out a series of production processes, such as reinforcement, adhesive backing, QR code printing, solder paste printing, component mounting, reflow soldering and AOI optical testing. After completing all the processes, the adhesive tape needs to be manually torn off to remove the finished FPC board.

[0034] This method that relies on manual operation has certain limitations in accuracy, speed and quality control, and also leads to low production efficiency. In contrast, the PCB production process has a higher degree of automation, such as the use of automatic board feeders, automatic printing equipment and placement machines. These automated equipment not only improves production efficiency, but also improves processing accuracy and product quality.

[0035] Applying automation technology in PCB production to FPC production can effectively improve existing manual operation problems. For example, the introduction of automated board handling and positioning systems can reduce reliance on manual labor and reduce the operating burden of workers. At the same time, using automated stripping equipment to remove adhesive tape can not only increase the board removal speed, but also reduce possible human errors in the production process. Through the integration and application of these technologies, the production efficiency of FPC can be significantly improved to ensure product consistency and high quality.

[0036] The utility model discloses a clamping fixture for clamping a circuit board, which is suitable for processing circuit boards in an automated production line. The fixture can adapt to circuit boards of different materials and types, including flexible circuit boards (FPCs) made of flexible materials such as polyimide (PI) and rigid circuit boards made of hard materials such as PI.

[0037] The clamping fixture cooperates with the automated production line (refer to the utility model patent with publication number CN216836113U) to achieve efficient processing of circuit boards. Specifically, the automated production line is equipped with an automatic loading machine and an automatic unloading machine, which are responsible for the loading and unloading operations of the fixture respectively. The automatic loading machine is equipped with a feeding device and a control device, wherein the feeding device is responsible for smoothly transporting the circuit board to the clamping fixture, and the control device is responsible for activating the clamping function of the clamping fixture to ensure that the circuit board is accurately clamped. The automatic unloading machine is also equipped with a picking device and a control device. The picking device is responsible for safely removing the processed circuit board from the clamping fixture, and the control device instructs the clamping fixture to release the circuit board, providing convenience for the picking operation.

[0038] The design and specific implementation of the feeding device and the control device can be adjusted according to the specific needs of the production line to adapt to different operating and production environments, and will not be described in detail here. The utility model does not limit the specific technical path and structural design of these devices, and aims to provide a clamping fixture solution that can realize the automated processing of circuit boards.

[0039] See also Figure 1-10 The utility model provides a clamping fixture, comprising a mounting plate 1 and a fixed clamping assembly 2, wherein the fixed clamping assembly 2 is connected to the mounting plate 1.

[0040] It also includes a fixing mechanism 5, a movable plate 3 and a movable clamping assembly 6 arranged on the movable plate 3, the movable plate 3 is used to drive the movable clamping assembly 6 to move closer to or away from the fixed clamping assembly 2, and the movable plate 3 is fixed to the mounting plate 1 through the fixing mechanism 5.

[0041] In the actual implementation process, by adjusting the position of the movable plate 3, that is, adjusting the movable plate 3 to drive the movable clamping component 6 to approach or move away from the fixed clamping component 2, the distance between the movable clamping component 6 and the fixed clamping component 2 is adjusted so that the distance between the movable clamping component 6 and the fixed clamping component 2 matches the size of the circuit board to be clamped, and then the movable clamping component 6 is fixed using the fixing mechanism 5, and then the circuit board can be clamped.

[0042] By combining the design of the mounting plate 1, the fixed clamping assembly 2, the movable plate 3 and the movable clamping assembly 6, the fixture can adapt to circuit boards of different sizes and types, including flexible circuit boards and rigid circuit boards, thereby enhancing the versatility and adaptability of the clamping fixture. The adjustable spacing function provided by the movable plate 3 and the movable clamping assembly 6 allows the user to adjust the clamping spacing according to the specific size of the circuit board, thereby ensuring accurate clamping of the circuit board. The design of the clamping fixture simplifies the complexity of the traditional manual clamping of the circuit board and reduces the reliance on the operator's skills.

[0043] It should be noted that, since rigid circuit boards are more solid and heavier than flexible circuit boards, the structure of this fixture supports the clamping requirements for these characteristics. Through the adjustability of the movable plate 3 and the movable clamping assembly 6, the user can accurately adjust the interval according to the size and thickness of the PCB, ensuring the effective clamping of rigid circuit boards of different thicknesses and sizes. In addition, the strong design of the fixing mechanism 5 and the movable clamping assembly 6 of the clamping fixture ensures stability even under high mechanical loads, which is particularly important for processing rigid circuit boards because they may need to withstand greater forces during processing. Therefore, the clamping fixture can adapt to both thin and light FPCs and effectively handle more rigid PCBs.

[0044] As an optional embodiment, the mounting plate 1 includes a first mounting plate surface 11 and a second mounting plate surface 12 that are relatively arranged, and the fixed clamping assembly 2 includes a first pressing portion 21 and a first control portion 22, the first pressing portion 21 is located on the side where the first mounting plate surface 11 is located, the first control portion 22 is located on the side where the second mounting plate surface 12 is located and exposed to the second mounting plate surface 12, and the first control portion 22 is used to control the first pressing portion 21 to move away from or close to the first mounting plate surface 11.

[0045] Furthermore, a certain angle is formed between the first control part 22 and the first pressing part 21, and an elastic element is provided on the first control part 22, which can be a torsion spring. The elastic element is used to provide elastic force for the first pressing part 21 to approach the first surface 11 of the mounting plate. In actual use, when the first control part 22 is subjected to pressure applied by the top plate of the device, the first control part 22 is urged to approach the second surface 12 of the mounting plate, and the first control part 22 drives the first pressing part 21 away from the first surface 11 of the mounting plate, and a clamping space for the circuit board is formed between the first pressing part 21 and the first surface 11 of the mounting plate. When the circuit board is in the clamping space, the force applied to the first control part 22 is canceled, and the elastic element installed on the first control part 22 applies a restoring force to the first control part 22, prompting the first control part 22 to reset, thereby causing the first pressing part 21 to clamp the circuit board. Compared with the operation method of manually sticking the flexible circuit board to the jig with adhesive tape, it is more convenient to fix the flexible circuit board using a clamping jig.

[0046] When the clamping of the circuit board needs to be cancelled, pressure is applied to the first control part 22 again, that is, the first control part 22 is urged to approach the second surface 12 of the mounting plate, and the first control part 22 drives the first pressing part 21 away from the first surface 11 of the mounting plate, so that the first pressing part 21 cancels the clamping effect on the circuit board. This solves the problem that the prior art uses manual adhesive tape to stick the flexible circuit board on the jig and the adhesive tape is torn off after production, which requires high quality of workers, is difficult to control accuracy, speed, and quality, is time-consuming and labor-intensive, and has low production efficiency.

[0047] As an optional embodiment, the movable plate 3 includes a movable plate first surface 31 and a movable plate second surface 32; the movable clamping assembly 6 includes a second pressing portion 61 and a second control portion 62, the second pressing portion 61 of the movable clamping assembly 6 is located on the side where the movable plate first surface 31 is located, the second control portion 62 is located on the side where the movable plate second surface 32 is located and exposed to the movable plate second surface 32, and the second control portion 62 is used to control the second pressing portion 61 to move away from or close to the movable plate first surface 31. In this embodiment, the movable clamping assembly 6 has the same working principle as the fixed clamping assembly 2, wherein the second pressing portion 61 is equivalent to the first pressing portion 21, and the second control portion 62 is equivalent to the first control portion 22. In the initial state, the second pressing portion 61 is in contact with the movable plate first surface 31. When the second control part 62 is subjected to pressure from the top plate of the device, the second control part 62 rotates and drives the second pressing part 61 away from the first surface 31 of the movable plate, so that a clamping space is formed between the second pressing part 61 and the first surface 31 of the movable plate. When the circuit board is in the clamping space between the second pressing part 61 and the first surface 31 of the movable plate, the pressure on the second control part 62 is cancelled, the second control part 62 is reset, and the second pressing part 61 clamps the circuit board. When the clamping of the circuit board needs to be cancelled, the same method is adopted, that is, pressure is applied to the second control part 62 to make the second pressing part 61 move.

[0048] Since the working principle of the movable clamping assembly 6 for clamping and un-clamping the circuit board is the same as the working principle of the fixed clamping assembly 2, it will not be described in detail here.

[0049] As an optional embodiment, the fixed clamping assembly 2 also includes a first roller 23 rotatably connected to the first control part 22; during the process of clamping the flexible circuit board by the clamping fixture, the first control part 22 moves on the surface of the device top plate, and the first roller 23 contacts the surface of the device top plate. When the first control part 22 moves, the first roller 23 rolls relative to the first control part 22. In this process, the friction between the first control part 22 and the surface of the device top plate can be effectively reduced, and the wear of the device top plate surface and the wear of the first control part 22 are also reduced.

[0050] The movable clamping assembly 6 further includes a second roller 63 rotatably connected to the second control portion 62. The second roller 63 has the same purpose and working principle as the first roller 23, and will not be described in detail herein.

[0051] As an optional embodiment, a first receiving groove 221 is provided on the first control part 22, a first connecting shaft 222 is provided in the first receiving groove 221, and the first connecting shaft 222 passes through the first roller 23 and is rotatably connected with the first roller 23. The first control part 22 moves on the board surface of the top plate of the device, and the first roller 23 contacts the board surface of the top plate of the device. When the first control part 22 moves, the first roller 23 rotates relative to the first connecting shaft 222, that is, the first roller 23 rolls in the first receiving groove 221.

[0052] The second control part 62 is provided with a second receiving groove 621, and a second connecting shaft 622 is provided in the second receiving groove 621. The second connecting shaft 622 passes through the second roller 63 and is rotatably connected with the second roller 63. The second control part 62 moves on the board surface of the equipment top plate, and the second roller 63 contacts the board surface of the equipment top plate. When the second control part 62 moves, the second roller 63 rotates relative to the second connecting shaft 622, that is, the first roller 23 rolls in the second receiving groove 621. In this process, the friction between the first control part 22 and the second control part 62 and the board surface of the equipment top plate can be effectively reduced, and the wear of the board surface of the equipment top plate and the wear of the first control part 22 and the second control part 62 can also be reduced.

[0053] As an optional embodiment, the mounting plate 1 is provided with a first mounting groove 13, a first fixed shaft 4 is arranged in the first mounting groove 13, the first fixed shaft 4 passes through the first control part 22, and the first control part 22 is rotatably connected to the first fixed shaft 4. When the first control part 22 is subjected to pressure from the top plate of the device, the first control part 22 rotates relative to the first fixed shaft 4, thereby driving the first pressing part 21 to flip, so that the first pressing part 21 is close to or away from the first surface 11 of the mounting plate.

[0054] The fixed clamping assembly 2 further includes a first torsion spring 24, one end of which is connected to the first control part 22, and the other end of which is fixedly connected to the first fixed shaft 4. In the initial state, the first torsion spring 24 provides elastic force for the first control part 22, and makes the first pressing part 21 fit with the first surface 11 of the mounting plate. When the first control part 22 is subjected to pressure applied by the top plate of the device, the first control part 22 is urged to approach the second surface 12 of the mounting plate, and the first control part 22 drives the first pressing part 21 away from the first surface 11 of the mounting plate. At the same time, the first torsion spring 24 is twisted. When the force applied to the first control part 22 is cancelled, the first torsion spring 24 provides a restoring force for the first control part 22, prompting the first control part 22 to reset, thereby making the first pressing part 21 fit with the first surface 11 of the mounting plate.

[0055] The movable plate 3 is provided with a second mounting groove 33, and a second fixed shaft 7 is arranged in the second mounting groove 33. The second fixed shaft 7 passes through the second control part 62, and the second control part 62 is rotatably connected with the second fixed shaft 7. When the second control part 62 is subjected to pressure from the top plate of the device, the second control part 62 rotates relative to the second fixed shaft 7, thereby driving the second pressing part 61 to flip, so that the second pressing part 61 is close to or away from the first surface 31 of the movable plate.

[0056] The movable clamping assembly 6 further includes a second torsion spring 64, one end of which is connected to the second control portion 62, and the other end of which is fixedly connected to the second fixed shaft 7. In the initial state, the second torsion spring 64 provides elastic force for the second control portion 62, and makes the second pressing portion 61 fit with the first surface 31 of the movable plate. When the second control portion 62 is subjected to pressure applied by the top plate of the device, the second control portion 62 is urged to approach the second surface 32 of the movable plate, and the second control portion 62 drives the second pressing portion 61 away from the first surface 31 of the movable plate, and at the same time, the second torsion spring 64 is twisted. When the force applied to the second control portion 62 is cancelled, the second torsion spring 64 provides a restoring force for the second control portion 62, prompting the second control portion 62 to reset, thereby making the second pressing portion 61 fit with the first surface 31 of the movable plate.

[0057] As an optional implementation, the number of the fixed clamping components 2 is at least two, the number of the movable clamping components 6 is at least two, and the number of the movable plates 3 is at least two.

[0058] Furthermore, a fixed clamping assembly 2 and a movable clamping assembly 6 form a group to clamp the circuit board, and at least two fixed clamping assemblies 2 and two movable clamping assemblies 6 can be provided to clamp two circuit boards. Figures 1 to 3As shown, in this embodiment, the number of the fixed clamping assembly 2, the movable clamping assembly 6 and the movable plate 3 are all three, which can clamp circuit boards of three different sizes. In addition, in actual use, the position of each movable plate 3 can be adjusted so that the clamping fixture can perform multi-point clamping of circuit boards with irregular frames.

[0059] As an optional embodiment, a slide groove 14 is provided on the first surface 11 of the mounting plate 1 for the movable plate 3 to slide. The movable plate 3 is installed in the slide groove 14, and the movable plate first surface 31 of the movable plate 3 is flush with the first surface 11 of the mounting plate, ensuring that the circuit board is in relatively flat contact with the first surface 11 of the mounting plate and the first surface 31 of the movable plate.

[0060] As an optional embodiment, the fixing mechanism 5 includes a plate body 51 and a fixing member 52, the plate body 51 is provided with fixing holes 511 in a linear equidistant array, the movable plate 3 is provided with a first waist-shaped hole 34, and the mounting plate 1 is provided with a second waist-shaped hole 16, the fixing member 52 passes through the first waist-shaped hole 34, the second waist-shaped hole 16 and the fixing hole 511 on the plate body 51 to fix the movable plate 3 on the mounting plate 1.

[0061] Furthermore, in this embodiment, the fixing member 52 is a countersunk screw, and the fixing hole 511 is a threaded hole matching the countersunk screw. When the position of the movable plate 3 needs to be adjusted, the fixing member 52 is pulled out, and then the movable plate 3 can be adjusted to slide in the slide groove 14. When the movable plate 3 slides to a suitable position, the fixing member 52 is inserted into the first waist-shaped hole 34, the second waist-shaped hole 16 and the fixing hole 511, and the fixing member 52 is threadedly connected with the fixing hole 511 to fix the movable plate 3. Figure 3 As shown, two countersunk screws are arranged in each first waist-shaped hole 34 , and the two countersunk screws are respectively located at two ends of the first waist-shaped hole 34 , so as to ensure the firmness of fixing the movable plate 3 .

[0062] As an optional embodiment, the mounting plate 1 is provided with a notch 15 penetrating the first surface 11 and the second surface 12 of the mounting plate, and the movable plate second surface 32 of the movable plate 3 is provided with a protrusion 35, and the protrusion 35 is slidably connected with the side of the notch 15. The notch 15 is set to reduce the weight of the mounting plate 1, thereby reducing the transmission pressure of the automated production line. In addition, the cooperation between the protrusion 35 and the side of the notch 15 can effectively improve the smoothness of the sliding of the movable plate 3 in the slide groove 14.

[0063] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A clamping fixture, comprising a mounting plate (1) and a fixed clamping assembly (2), wherein the fixed clamping assembly (2) is connected to the mounting plate (1), characterized in that: It also comprises a fixing mechanism (5), a movable plate (3) and a movable clamping assembly (6) arranged on the movable plate (3), wherein the movable plate (3) is used to drive the movable clamping assembly (6) to move closer to or away from the fixed clamping assembly (2), and the movable plate (3) is fixed to the mounting plate (1) via the fixing mechanism (5).

2. A clamping fixture according to claim 1, characterized in that: The mounting plate (1) comprises a first mounting plate surface (11) and a second mounting plate surface (12) which are arranged opposite to each other, and the fixing clamping assembly (2) comprises a first pressing portion (21) and a first control portion (22), wherein the first pressing portion (21) is located on a side where the first mounting plate surface (11) is located, and the first control portion (22) is located on a side where the second mounting plate surface (12) is located and is exposed on the second mounting plate surface (12), and the first control portion (22) is used to control the first pressing portion (21) to move away from or close to the first mounting plate surface (11).

3. A clamping fixture according to claim 2, characterized in that: The movable plate (3) comprises a first surface (31) of the movable plate and a second surface (32) of the movable plate; the movable clamping assembly (6) comprises a second pressing portion (61) and a second control portion (62); the second pressing portion (61) of the movable clamping assembly (6) is located on a side where the first surface (31) of the movable plate is located; the second control portion (62) is located on a side where the second surface (32) of the movable plate is located and is exposed on the second surface (32) of the movable plate; the second control portion (62) is used to control the second pressing portion (61) to move away from or close to the first surface (31) of the movable plate.

4. A clamping fixture according to claim 3, characterized in that: The fixed clamping assembly (2) further comprises a first roller (23) rotatably connected to the first control portion (22); the movable clamping assembly (6) further comprises a second roller (63) rotatably connected to the second control portion (62).

5. A clamping fixture according to claim 4, characterized in that: The first control portion (22) is provided with a first receiving groove (221), a first connecting shaft (222) is provided in the first receiving groove (221), the first connecting shaft (222) passes through the first roller (23) and is rotatably connected to the first roller (23); the second control portion (62) is provided with a second receiving groove (621), a second connecting shaft (622) is provided in the second receiving groove (621), the second connecting shaft (622) passes through the second roller (63) and is rotatably connected to the second roller (63).

6. A clamping fixture according to claim 3, characterized in that: The mounting plate (1) is provided with a first mounting groove (13), a first fixed shaft (4) is arranged in the first mounting groove (13), the first fixed shaft (4) passes through the first control part (22), and the first control part (22) is rotatably connected to the first fixed shaft (4); the fixed clamping assembly (2) further comprises a first torsion spring (24), one end of the first torsion spring (24) is connected to the first control part (22), and the other end of the first torsion spring (24) is fixedly connected to the first fixed shaft (4); The movable plate (3) is provided with a second mounting groove (33), a second fixed shaft (7) is arranged in the second mounting groove (33), the second fixed shaft (7) passes through the second control part (62), and the second control part (62) is rotatably connected to the second fixed shaft (7); the movable clamping assembly (6) further comprises a second torsion spring (64), one end of the second torsion spring (64) is connected to the second control part (62), and the other end of the second torsion spring (64) is fixedly connected to the second fixed shaft (7).

7. The clamping fixture according to claim 1, characterized in that: The number of the fixed clamping assemblies (2) is at least two, the number of the movable clamping assemblies (6) is at least two, and the number of the movable plates (3) is at least two.

8. The clamping fixture according to claim 1, characterized in that: A sliding groove (14) for the movable plate (3) to slide is provided on the first surface (11) of the mounting plate (1).

9. The clamping fixture according to claim 1, characterized in that: The fixing mechanism (5) comprises a plate body (51) and a fixing member (52); the plate body (51) is provided with fixing holes (511) arranged in a linear equidistant array; the movable plate (3) is provided with a first waist-shaped hole (34); the mounting plate (1) is provided with a second waist-shaped hole (16); the fixing member (52) passes through the first waist-shaped hole (34), the second waist-shaped hole (16) and the fixing hole (511) on the plate body (51) to fix the movable plate (3) on the mounting plate (1).

10. The clamping fixture according to claim 1, characterized in that: The mounting plate (1) is provided with a notch (15) penetrating the first surface (11) and the second surface (12) of the mounting plate, and the movable plate second surface (32) of the movable plate (3) is provided with a protrusion (35), and the protrusion (35) is slidably connected to the side of the notch (15).

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