Fixing jig and PCB laser processing device

Abstract

The utility model relates to a fixing jig and a PCB laser processing device, the fixing jig is used for fixing a workpiece, and the workpiece can be a PCB. The fixing jig comprises a bearing plate and a fixing mechanism, the bearing plate is provided with a bearing face used for bearing a workpiece, the fixing mechanism comprises a rotating shaft and a pressing plate which are connected, the rotating shaft is rotationally connected to the bearing plate, the rotating shaft can drive the pressing plate to rotate so that the pressing plate can be close to or away from the bearing face, and then the workpiece is pressed or released. According to the fixing jig and the PCB processing device provided by the invention, the PCB can be conveniently fixed in the transportation or processing process, so that the probability of deformation such as warping of the PCB can be reduced, and the processing precision of the PCB is improved.

Description

Technical Field

[0001] The present application relates to the technical field of PCB board processing, and in particular to a fixing fixture and a PCB board laser processing device. Background Art

[0002] In the production of PCB (Printed Circuit Board), there are high requirements for processing accuracy. In the related art, due to the material limitation and thinness of PCB, some edges of PCB are prone to warping during transportation and / or processing, which affects the flatness of PCB and further affects the processing accuracy of PCB, resulting in a high product defect rate. Utility Model Content

[0003] Based on this, it is necessary to provide a fixing fixture and a PCB board laser processing device, aiming to reduce the probability of PCB board warping and improve the processing accuracy of PCB board.

[0004] An embodiment of the first aspect of the present application provides a fixing fixture for fixing a workpiece, the fixing fixture comprising a carrying plate and a fixing mechanism, the carrying plate having a carrying surface for carrying the workpiece, the fixing mechanism comprising a rotating shaft and a pressure plate connected to each other, the rotating shaft being rotatably connected to the carrying plate, and the rotating shaft being capable of driving the pressure plate to rotate so that the pressure plate approaches or moves away from the carrying surface, thereby pressing or releasing the workpiece.

[0005] In the embodiment of the present application, the rotating shaft is rotatably connected to the supporting plate, and the rotation of the rotating shaft drives the pressure plate connected thereto to rotate so that the pressure plate is close to or away from the supporting surface, thereby conveniently pressing or releasing the workpiece, and further conveniently fixing the workpiece during transportation or processing, reducing the probability of deformation such as warping of the workpiece. The workpiece can be a PCB board, thereby reducing the probability of warping of the PCB board during transportation or processing, and improving the processing accuracy of the PCB board.

[0006] In some embodiments, the fixing mechanism includes a first fixing mechanism, the first fixing mechanism includes a first rotating shaft and a first pressure plate fixedly connected, the first rotating shaft is rotatably connected to the supporting plate; the first fixing mechanism also includes a first transmission assembly and a first driving member, the first driving member is connected to the supporting plate, the first transmission assembly includes a first connecting rod, a second connecting rod and a third connecting rod hinged in sequence, the end of the first connecting rod away from the second connecting rod is fixedly connected to the first rotating shaft, and the end of the third connecting rod away from the second connecting rod is connected to the first driving member; the first driving member can drive the third connecting rod to move, and then drive the first pressure plate to rotate through the second connecting rod, the first connecting rod and the first rotating shaft, so that the first pressure plate is close to or away from the supporting surface.

[0007] In some embodiments, the fixing mechanism includes a second fixing mechanism, the second fixing mechanism includes a second rotating shaft, a rotating shaft and a second pressure plate, the rotating shaft is rotatably connected to the supporting plate, the second pressure plate includes a pressure block and an adapter plate, the second rotating shaft and the pressure block are respectively connected to opposite ends of the adapter plate, the rotating shaft is connected to the adapter plate and is located between the second rotating shaft and the pressure block, the second rotating shaft can drive the adapter plate and the pressure block to rotate around the rotating shaft so that the pressure block is close to or away from the supporting surface.

[0008] In some embodiments, the second fixing mechanism also includes a fixing block, a second transmission assembly and a second driving member, one end of the fixing block is connected to the supporting plate, and the other end is connected to the second driving member, and the rotating shaft is rotatably connected to the fixing block; the second transmission assembly includes a connecting block and a bearing, one end of the connecting block is provided with a slide groove, the bearing can be rolled in the slide groove, the second rotating shaft is connected to the bearing and can move in the slide groove, the other end of the connecting block is connected to the second driving member, and the second driving member can drive the second rotating shaft to rotate around the rotating shaft through the connecting block and the bearing, thereby driving the pressing block to rotate to approach or move away from the supporting surface.

[0009] In some embodiments, the second fixing mechanism includes two second driving members, two second transmission assemblies and a connecting member, the two connecting blocks in the two second transmission assemblies are respectively arranged at opposite ends of the second rotating shaft, and the two connecting blocks are provided with the sliding groove at one end close to the second rotating shaft, and the bearing is rollingly connected in each sliding groove, the opposite ends of the second rotating shaft are respectively connected to the bearings, the two connecting blocks are connected to one end of the connecting member, and the two second driving members are connected to the other end of the connecting member, and the two second driving members can synchronously drive the connecting member to drive the two connecting blocks to move, so that the second rotating shaft rotates around the rotation axis, and the second rotating shaft moves in the two sliding grooves.

[0010] In some embodiments, the fixing mechanism includes a first fixing mechanism and a second fixing mechanism spaced apart from each other on the carrying plate;

[0011] The first fixing mechanism comprises a first rotating shaft and a first pressing plate which are fixedly connected, the first rotating shaft being rotatably connected to the carrying plate; the first fixing mechanism further comprises a first transmission assembly and a first driving member, the first driving member being connected to the carrying plate, the first transmission assembly comprising a first connecting rod, a second connecting rod and a third connecting rod which are hinged in sequence, an end of the first connecting rod away from the second connecting rod being fixedly connected to the first rotating shaft, an end of the third connecting rod away from the second connecting rod being connected to the first driving member, the first driving member being able to drive the third connecting rod to move, and then driving the first pressing plate to rotate through the second connecting rod, the first connecting rod and the first rotating shaft, so that the pressing plate is close to or away from the carrying surface;

[0012] The second fixing mechanism includes a second rotating shaft, a rotating shaft and a second pressure plate. The rotating shaft is rotatably connected to the supporting plate. The second pressure plate includes a pressure block and an adapter plate. The second rotating shaft and the pressure block are respectively connected to opposite ends of the adapter plate. The rotating shaft is connected to the adapter plate and is located between the second rotating shaft and the pressure block. The second rotating shaft can drive the adapter plate and the pressure block to rotate around the rotating shaft so that the pressure block is close to or away from the supporting surface.

[0013] In some embodiments, the second fixing mechanism further comprises a fixing block, a second transmission assembly and a second driving member, one end of the fixing block is connected to the bearing plate, and the other end is connected to the second driving member, and the rotating shaft is rotatably connected to the fixing block;

[0014] The second transmission assembly includes a connecting block and a bearing, one end of the connecting block is provided with a slide groove, the bearing can be rotatably connected to the slide groove, the second rotating shaft is connected to the bearing and can move in the slide groove, the other end of the connecting block is connected to the second driving member, the second driving member can drive the second rotating shaft to rotate around the rotating axis through the connecting block and the bearing, and then drive the pressing block to rotate to approach or move away from the bearing surface.

[0015] In some embodiments, the fixing fixture includes a plurality of the first fixing mechanisms and at least one of the second fixing mechanisms, the plurality of the first fixing mechanisms and at least one of the second fixing mechanisms are arranged around the supporting plate, and the first rotation axis and the rotation axis are both arranged parallel to the supporting plate.

[0016] In some embodiments, the connection block and the pressing block are surrounded to form an avoidance groove, at least one of the first driving members and the second fixing mechanism are located on the same side of the supporting plate, and at least one of the first driving members is located in the avoidance groove.

[0017] In some embodiments, the fixing fixture further includes a dustproof plate, and the dustproof plate is connected to the first driving member and / or the second driving member.

[0018] In some embodiments, the pressing plate has a pressing surface, and the pressing surface is used to cooperate with the bearing surface to press the workpiece tightly. The pressing plate is provided with an anti-static rubber strip on the pressing surface.

[0019] In some embodiments, the fixing fixture includes at least two mutually connected supporting plates, and each supporting plate is provided with at least one fixing mechanism.

[0020] In some embodiments, a plurality of adsorption holes are disposed on the supporting plate, and the adsorption holes penetrate from the supporting surface to a side of the supporting plate away from the supporting surface.

[0021] An embodiment of the second aspect of the present application provides a PCB board laser processing device, including a fixing fixture in any of the above embodiments.

[0022] The PCB board laser processing device provided in the embodiment of the present application includes the fixing fixture in any of the above embodiments, the workpiece is a PCB board, and the rotating shaft is connected to the supporting plate by rotation. The rotation of the rotating shaft drives the pressure plate connected to it to rotate, so that the pressure plate is close to or away from the supporting surface, thereby conveniently pressing or releasing the PCB board, and further conveniently fixing the PCB board during transportation and / or processing, reducing the probability of warping of the PCB board during transportation or processing, and then ensuring the processing accuracy of the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the structure of a fixing fixture in one embodiment of the present application.

[0024] Figure 2 It is a schematic diagram of the partial structure of a fixing fixture in one embodiment of the present application.

[0025] Figure 3 Schematic diagram of the structure of the first fixing mechanism in one embodiment of the present application.

[0026] Figure 4 FIG. 4 is a top view of a first fixing mechanism in an embodiment of the present application.

[0027] Figure 5 Schematic diagram of the structure of the second fixing mechanism in one embodiment of the present application.

[0028] Figure 6 FIG. 4 is a top view of a second fixing mechanism in an embodiment of the present application.

[0029] Explanation of the accompanying drawings: fixing fixture-100, supporting plate-1, supporting surface-11, adsorption hole-12, first fixing mechanism-2, first rotating shaft-21, first pressure plate-22, first transmission assembly-23, first connecting rod-231, second connecting rod-232, third connecting rod-233, first driving member-24, second fixing mechanism-3, second rotating shaft-31, rotating shaft-32, second pressure plate-33, pressure block-331, adapter plate-332, fixing block-34, second transmission assembly-35, connecting block-351, slide groove-352, bearing-353, second driving member-36, connecting member-37, avoidance groove-4, dustproof plate-5, anti-static rubber strip-6. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] When describing positional relationships, unless otherwise specified, when an element such as a layer, film, or substrate is referred to as being "on" another element, it can be directly on the other element or there may be intervening elements. Further, when a layer is referred to as being "under" another layer, it can be directly under or there may be one or more intervening elements. It is also understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers or there may be one or more intervening elements.

[0033] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[0034] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present application.

[0035] It should also be understood that when interpreting an element, even if not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of the specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" can mean within one or more standard deviations, which are not limited here.

[0036] Furthermore, in the specification, the phrase “planar distribution schematic diagram” refers to a drawing when a target portion is viewed from above, and the phrase “cross-sectional schematic diagram” refers to a drawing when a section taken by vertically cutting the target portion is viewed from the side.

[0037] In the production of PCB boards (Printed Circuit Boards), PCB boards have high processing accuracy requirements. In the related art, due to the large area and thin overall thickness of PCB boards, some edges of PCB boards may be warped during transportation and processing, thereby affecting the flatness of the PCB boards and the processing accuracy of the PCB boards.

[0038] Based on the above problems, the present application provides a fixing fixture and a PCB board laser processing device, which can reduce the probability of PCB board warping and improve the processing accuracy of PCB board.

[0039] In a first aspect, an embodiment of the present application provides a fixing fixture 100 for fixing a workpiece; Figures 1 to 6 As shown, the fixing fixture 100 includes a carrier plate 1 and a fixing mechanism, the carrier plate 1 has a bearing surface 11 for bearing a workpiece, the fixing mechanism includes a rotating shaft and a pressing plate connected to each other, the rotating shaft is rotatably connected to the carrier plate 1, and the rotating shaft can drive the pressing plate to rotate so that the pressing plate is close to or away from the bearing surface. The workpiece can be a PCB board, and the PCB board can be arranged in a rectangular shape. The pressing plate can be a long strip pressing plate, the extension direction of the pressing plate is parallel to the side of the PCB board it presses, and the length of the pressing plate can be set according to the length or width of the PCB board.

[0040] The fixing fixture 100 provided in the embodiment of the present application is connected to the supporting plate 1 by rotating the rotating shaft. The rotation of the rotating shaft drives the pressure plate connected thereto to rotate so that the pressure plate is close to or away from the supporting surface 11, thereby conveniently pressing or releasing the workpiece, and further conveniently fixing the workpiece during transportation or processing, reducing the probability of deformation such as warping of the workpiece. The workpiece can be a PCB board, thereby reducing the probability of warping of the PCB board during transportation and / or processing, and improving the processing accuracy of the PCB board.

[0041] In some embodiments, Figure 3 and Figure 4 As shown, the fixing mechanism includes a first fixing mechanism 2, and the first fixing mechanism 2 includes a first rotating shaft 21 and a first pressure plate 22 that are fixedly connected, and the first rotating shaft 21 is rotatably connected to the supporting plate 1; the first fixing mechanism 2 also includes a first transmission assembly 23 and a first driving member 24, and the first driving member 24 is connected to the supporting plate 11; the first transmission assembly 23 includes a first connecting rod 231, a second connecting rod 232 and a third connecting rod 233 that are hinged in sequence, and the end of the first connecting rod 231 away from the second connecting rod 232 is fixedly connected to the first rotating shaft 21, and the end of the third connecting rod 233 away from the second connecting rod 232 is connected to the first driving member 24; the first driving member 24 can drive the third connecting rod 233 to move, and then drive the first pressure plate 22 to rotate through the second connecting rod 232, the first connecting rod 231 and the first rotating shaft 21, so that the first pressure plate 22 is close to or away from the supporting surface 11.

[0042] Therefore, when the first fixing mechanism 2 is working, the first driving member 24 drives the third connecting rod 233 to move, and drives the first connecting rod 231 to rotate through the second connecting rod 232, thereby driving the first rotating shaft 21 and the first pressure plate 22 to rotate, so that the first pressure plate 22 is close to or away from the bearing surface 11, thereby facilitating the first fixing mechanism 2 to press or release the workpiece, reducing the probability of deformation such as warping of the workpiece, and thereby improving the processing accuracy of the workpiece. In addition, by making the first transmission assembly 23 include a first link 231, a second link 232 and a third link 233 that are hinged in sequence, the second link 232 serves as an intermediate transition piece, which can not only realize the transmission between the first link 231 and the third link 233, but also convert the movement of the third link 233 into the rotation of the first link 231 to ensure the rotation stability of the first rotating shaft 21, and can also increase the movement range of the third link 233 and the first link 231 to prevent the third link 233 from interfering with the first link 231 when the moving distance is large, thereby reducing the probability of damage to the first driving member 24 or failure of the first rotating shaft 21 to rotate.

[0043] Optionally, the first driving member 24 includes but is not limited to a cylinder, an electric motor and a servo motor.

[0044] like Figure 5 and Figure 6As shown, in some embodiments, the fixing mechanism includes a second fixing mechanism 3, the second fixing mechanism 3 includes a second rotating shaft 31, a rotating shaft 32 and a second pressure plate 33, the rotating shaft 32 is rotatably connected to the supporting plate 1, the second pressure plate 33 includes a pressure block 331 and an adapter plate 332, the second rotating shaft 31 and the pressure block 331 are respectively connected to the opposite ends of the adapter plate 332, the rotating shaft 32 is connected to the adapter plate 332, and is located between the second rotating shaft 31 and the pressure block 331, the second rotating shaft 31 can drive the adapter plate 332 and the pressure block 331 to rotate around the rotating shaft 32, so that the pressure block 331 is close to or away from the supporting surface 11.

[0045] Therefore, when the second fixing mechanism 3 is working, the second rotating shaft 31 drives the adapter plate 332 and the pressure block 331 to rotate around the rotating shaft 32, so that the pressure block 331 is close to or away from the bearing surface 11, thereby facilitating the second fixing mechanism 3 to press or release the workpiece for rotation, reducing the probability of deformation such as warping of the workpiece, and thereby improving the processing accuracy of the workpiece.

[0046] like Figure 5 and Figure 6 As shown, in some embodiments, the second fixing mechanism 3 also includes a fixing block 34, a second transmission assembly 35 and a second driving member 36, one end of the fixing block 34 is connected to the supporting plate 1, and the other end is connected to the second driving member 35, and the rotating shaft 32 is rotatably connected to the fixing block 34; the second transmission assembly 35 includes a connecting block 351 and a bearing 353, one end of the connecting block 351 is provided with a slide groove 352, the bearing 353 can be rotatably connected in the slide groove 352, the second rotating shaft 31 is connected to the bearing 353 and can move in the slide groove 352, the other end of the connecting block 351 is connected to the second driving member 36, and the second driving member 36 can drive the second rotating shaft 31 to rotate around the rotating shaft 32 through the connecting block 351 and the bearing 353, thereby driving the pressing block 331 to rotate to approach or move away from the supporting surface 11.

[0047] Therefore, when the second fixing mechanism 3 is working, the second driving member 36 drives the second rotating shaft 31 to rotate around the rotating shaft 32. At the same time, the second rotating shaft 31 is connected to the bearing 353 and moves in the slide groove 352, thereby improving the smoothness and stability of the rotation, so that the second fixing mechanism can better press or release the workpiece.

[0048] like Figure 5 and Figure 6As shown, in some embodiments, the second fixing mechanism 3 includes two second driving members 36, two second transmission assemblies 35 and a connecting member 37. The two connecting blocks 351 in the two second transmission assemblies 35 are respectively arranged at opposite ends of the second rotating shaft 31, and the two connecting blocks 351 are provided with a slide groove 352 at one end close to the second rotating shaft 31, and a bearing 353 is rollingly connected in each slide groove 352. The opposite ends of the second rotating shaft 31 are respectively connected to the bearings 353, and the two connecting blocks 351 are connected to one end of the connecting member 37. The two second driving members 36 are connected to the other end of the connecting member 37. The two second driving members 36 can synchronously drive the connecting member 37 to drive the two connecting blocks 351 to move, so that the second rotating shaft 31 rotates around the rotating axis 32, and the second rotating shaft 31 moves in the two slide grooves 352.

[0049] Therefore, when the second fixing mechanism 3 is working, the two second driving members 36 can synchronously drive the connecting member 37 to move, so as to drive the two connecting blocks 351 to move, so that the second rotating shaft 31 rotates around the rotating shaft 32, and at the same time, the second rotating shaft 31 moves in the two slide grooves 352, so as to improve the smoothness and stability of the second rotating shaft 31 during the rotation of the rotating shaft, so that the pressing block 331 can stably press the workpiece or quickly release the workpiece. In addition, by setting two second transmission components 35 and two second driving members 36, the opposite ends of the second rotating shaft 31 can be balanced, the rotation stability of the second rotating shaft 31 can be improved, and the pressing block 331 of the second pressing plate 33 can better press or release the workpiece; moreover, the pressing block 331 of the second pressing plate 33 can have a larger pressing force, so as to flatten the deformed area of ​​the workpiece, so as to process the workpiece and improve the processing accuracy of the workpiece.

[0050] Optionally, the second driving member 36 includes but is not limited to a cylinder, an electric motor and a servo motor.

[0051] In some embodiments, the first fixing mechanism 2 may include a first driving member 24. The first fixing mechanism 2 has a simple structure, occupies a small space, and can provide a small pressing force. The second fixing mechanism 3 may include two second driving members 36. The two second driving members 36 move synchronously and can provide a large pressing force. In a specific design, any one of the two fixing mechanisms can be selected as needed to meet the edge pressing requirements, or both can be used at the same time. This application does not limit this.

[0052] like Figures 1 to 6As shown, in some embodiments, the fixing mechanism includes a first fixing mechanism 2 and a second fixing mechanism 3 which are spaced apart and arranged on the supporting plate 1; the first fixing mechanism 2 includes a first rotating shaft 21 and a first pressing plate 22 which are fixedly connected, and the first rotating shaft 21 is rotatably connected to the supporting plate 1; the first fixing mechanism 2 also includes a first transmission assembly 23 and a first driving member 24, and the first driving member 24 is connected to the supporting plate 11; the first transmission assembly 23 includes a first connecting rod 231, a second connecting rod 232 and a third connecting rod 233 which are hinged in sequence, and an end of the first connecting rod 231 away from the second connecting rod 232 is fixedly connected to the first rotating shaft 21, and an end of the third connecting rod 233 away from the second connecting rod 232 is connected to the first driving member 24; the first driving member 24 can drive the third connecting rod 231 to rotate. 233 moves, and then drives the first pressure plate 22 to rotate through the second connecting rod 232, the first connecting rod 231 and the first rotating shaft 21, so that the first pressure plate 22 is close to or away from the bearing surface 11; the second fixing mechanism 3 includes a second rotating shaft 31, a rotating shaft 32 and a second pressure plate 33, the rotating shaft 32 is rotatably connected to the bearing plate 1, the second pressure plate 33 includes a pressure block 331 and an adapter plate 332, the second rotating shaft 31 and the pressure block 331 are respectively connected to the opposite ends of the adapter plate 332, the rotating shaft 32 is connected to the adapter plate 332, and is located between the second rotating shaft 31 and the pressure block 331, the second rotating shaft 31 can drive the adapter plate 332 and the pressure block 331 to rotate around the rotating shaft 32, so that the pressure block 331 is close to or away from the bearing surface 11.

[0053] Therefore, by combining the first fixing mechanism 2 and the second fixing mechanism 3, the workpiece can be fixed from different directions of the workpiece, which can further reduce the probability of deformation such as warping of the PCB board, improve the flatness of the PCB board during processing, and improve the processing accuracy of the PCB board.

[0054] like Figure 5 and Figure 6 As shown, in some embodiments, the second fixing mechanism 3 also includes a fixing block 34, a second transmission assembly 35 and a second driving member 36, one end of the fixing block 34 is connected to the supporting plate 1, and the other end is connected to the second driving member 35, and the rotating shaft 32 is rotatably connected to the fixing block 34; the second transmission assembly 35 includes a connecting block 351 and a bearing 353, one end of the connecting block 351 is provided with a slide groove 352, the bearing 353 can be rotatably connected in the slide groove 352, the second rotating shaft 31 is connected to the bearing 353 and can move in the slide groove 352, the other end of the connecting block 351 is connected to the second driving member 36, and the second driving member 36 can drive the second rotating shaft 31 to rotate around the rotating shaft 32 through the connecting block 351 and the bearing 353, thereby driving the pressing block 331 to rotate to approach or move away from the supporting surface 11.

[0055] Therefore, when the second fixing mechanism 3 is working, the second driving member 36 drives the second rotating shaft 31 to rotate around the rotating shaft 32. At the same time, the second rotating shaft 31 is connected to the bearing 353 and moves in the slide groove 352, thereby improving the smoothness and stability of the rotation, so that the second fixing mechanism can better press or release the workpiece.

[0056] like Figure 1 As shown, in some embodiments, the fixing fixture 100 includes a plurality of first fixing mechanisms 2 and at least one second fixing mechanism 3, the plurality of first fixing mechanisms 2 and at least one second fixing mechanism 3 are arranged around the supporting plate 1, and the first rotating axis 21 and the rotating axis 32 are both arranged parallel to the supporting plate 11.

[0057] Thus, on the one hand, the workpiece can be fixed from at least four directions, which can further reduce the probability of deformation such as warping of the PCB board, improve the flatness of the PCB board during processing, and improve the processing accuracy of the PCB board. On the other hand, the overall space occupied by the fixing fixture 100 can be reduced, and the applicability of the fixing fixture 100 can be improved.

[0058] like Figure 2 As shown, in some embodiments, the connecting block 351 and the pressing block 331 are arranged to form an avoidance groove 4 , at least one first driving member 24 and the second fixing mechanism 3 are located on the same side of the supporting plate 1 , and at least one first driving member 24 is located in the avoidance groove 4 .

[0059] Therefore, the structure of the fixing fixture 100 can be made compact without affecting the normal operation of the carrying plate 1 and the first fixing mechanism 2 and the second fixing mechanism 3, thereby reducing the space occupied by the fixing fixture 100 and improving the applicability of the fixing fixture 100.

[0060] like Figure 3 and Figure 4 As shown, in some embodiments, the fixing fixture 100 further includes a dustproof plate 5 , and the dustproof plate 5 is connected to the first driving member 24 and / or the second driving member 36 .

[0061] Therefore, the dustproof plate 5 can be used to protect the first driving member 24 and the second driving member 36, reduce the probability of external dust and other impurities entering and accumulating in the first driving member 24 and the second driving member 36, causing wear of the first driving member 24 and the second driving member 36, improve the reliability of the first driving member 24 and the second driving member 36, and extend the service life of the first driving member 24 and the second driving member 36.

[0062] like Figure 2 , Figure 3 and Figure 5 As shown, in some embodiments, the pressing plate has a pressing surface, which is used to cooperate with the bearing surface 11 to press the workpiece, and the pressing plate is provided with an anti-static rubber strip 6 on the pressing surface;

[0063] Therefore, on the one hand, the first pressure plate 22 and the second pressure plate 33 are prevented from directly contacting the workpiece and causing electrostatic damage to the workpiece; on the other hand, the anti-static rubber strip 6 can make the pressing surface at least partially a flexible surface, thereby reducing the probability of surface damage to the workpiece during the process of pressing the workpiece by the first pressure plate 22 and the second pressure plate 33, thereby helping to improve the yield of the workpiece.

[0064] In some embodiments, the material of the antistatic rubber strip 6 can be plastic or rubber. Plastic and rubber materials are low in cost and easy to shape, which can make the preparation cost of the antistatic rubber strip 6 low and convenient to prepare, and can reduce the application cost of the fixing fixture 100. Of course, the material of the antistatic rubber strip 6 can be set according to actual needs, and this application is not limited to this.

[0065] like Figure 1 As shown, in some embodiments, the fixing fixture 100 includes at least two mutually connected supporting plates 1, and each supporting plate 1 is provided with at least one fixing mechanism.

[0066] In this way, the number of workpieces carried by the fixed fixture 100 can be increased, the working efficiency of the fixed fixture 100 can be improved, and the workpiece processing efficiency and processing accuracy can be improved. At least one fixing mechanism is arranged on each bearing plate 1. Specifically, four first fixing mechanisms 2 can be arranged on each bearing plate 1, or three first fixing mechanisms 2 and one second fixing mechanism 3 can be arranged. The number and position of the first fixing mechanisms 2 and the second fixing mechanisms 3 can be arranged according to actual needs, and this application does not limit this. Optionally, the structures of the two bearing plates 1 can be arranged symmetrically relative to the contact surfaces of the two bearing plates 1, so that the forces on both sides of the bearing plates 1 are balanced, thereby improving the reliability and aesthetics of the fixed fixture 100.

[0067] like Figure 1 As shown, in some embodiments, the carrier plate 1 is provided with a plurality of adsorption holes 12, which extend from the carrier surface 11 to the side of the carrier plate 1 away from the carrier surface 11. Specifically, the adsorption holes 12 may be connected to a mechanism such as a vacuum pump.

[0068] Therefore, not only can the fixing mechanism be used to fix the workpiece, but also negative pressure can be formed on the bearing surface 11 through the adsorption holes 12 to adsorb and fix the workpiece on the bearing surface 11, thereby achieving double fixation of the workpiece and further reducing the probability of deformation such as warping of the workpiece.

[0069] In a second aspect, an embodiment of the present application provides a PCB board laser processing device, including the fixing fixture 100 in any of the above embodiments.

[0070] The PCB board laser processing device provided in the embodiment of the present application includes the fixing fixture 100 in any of the above embodiments, the workpiece is a PCB board, and the rotation shaft is connected to the supporting plate 1 by rotation. The rotation of the rotation shaft drives the pressure plate connected thereto to rotate, so that the pressure plate approaches or moves away from the supporting surface 11, thereby conveniently pressing or releasing the PCB board, and further conveniently fixing the PCB board during transportation or processing, reducing the probability of warping of the PCB board during transportation or processing, and then improving the processing accuracy of the PCB board.

[0071] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A fixing fixture for fixing a workpiece, characterized in that: It includes a carrying plate and a fixing mechanism, the carrying plate has a carrying surface for carrying the workpiece, the fixing mechanism includes a rotating shaft and a pressure plate connected to each other, the rotating shaft is rotatably connected to the carrying plate, and the rotating shaft can drive the pressure plate to rotate so that the pressure plate approaches or moves away from the carrying surface, thereby pressing or releasing the workpiece.

2. The fixing fixture according to claim 1, characterized in that: The fixing mechanism comprises a first fixing mechanism, the first fixing mechanism comprises a first rotating shaft and a first pressing plate which are fixedly connected, and the first rotating shaft is rotatably connected to the bearing plate; The first fixing mechanism also includes a first transmission assembly and a first driving member, the first driving member is connected to the supporting plate, the first transmission assembly includes a first connecting rod, a second connecting rod and a third connecting rod hinged in sequence, the end of the first connecting rod away from the second connecting rod is fixedly connected to the first rotating shaft, the end of the third connecting rod away from the second connecting rod is connected to the first driving member, the first driving member can drive the third connecting rod to move, and then drive the first pressure plate to rotate through the second connecting rod, the first connecting rod and the first rotating shaft, so that the first pressure plate is close to or away from the supporting surface.

3. The fixing fixture according to claim 1, characterized in that: The fixing mechanism includes a second fixing mechanism, which includes a second rotating shaft, a rotating shaft and a second pressure plate. The rotating shaft is rotatably connected to the supporting plate, and the second pressure plate includes a pressure block and an adapter plate. The second rotating shaft and the pressure block are respectively connected to opposite ends of the adapter plate. The rotating shaft is connected to the adapter plate and is located between the second rotating shaft and the pressure block. The second rotating shaft can drive the adapter plate and the pressure block to rotate around the rotating shaft so that the pressure block is close to or away from the supporting surface.

4. The fixing fixture according to claim 3, characterized in that: The second fixing mechanism further comprises a fixing block, a second transmission assembly and a second driving member, one end of the fixing block is connected to the bearing plate, and the other end is connected to the second driving member, and the rotating shaft is rotatably connected to the fixing block; The second transmission assembly includes a connecting block and a bearing, one end of the connecting block is provided with a slide groove, the bearing can be rotatably connected to the slide groove, the second rotating shaft is connected to the bearing and can move in the slide groove, the other end of the connecting block is connected to the second driving member, the second driving member can drive the second rotating shaft to rotate around the rotating axis through the connecting block and the bearing, and then drive the pressing block to rotate to approach or move away from the bearing surface.

5. The fixing fixture according to claim 4, characterized in that: The second fixing mechanism includes two second driving members, two second transmission assemblies and a connecting member, the two connecting blocks in the two second transmission assemblies are respectively arranged at opposite ends of the second rotating shaft, and the two connecting blocks are provided with the sliding groove at one end close to the second rotating shaft, and the bearing is rollingly connected in each sliding groove, the opposite ends of the second rotating shaft are respectively connected to the bearings, the two connecting blocks are connected to one end of the connecting member, and the two second driving members are connected to the other end of the connecting member, and the two second driving members can synchronously drive the connecting member to drive the two connecting blocks to move, so that the second rotating shaft rotates around the rotation axis, and the second rotating shaft moves in the two sliding grooves.

6. The fixing fixture according to claim 1, characterized in that: The fixing mechanism comprises a first fixing mechanism and a second fixing mechanism which are spaced apart and arranged on the carrying plate; The first fixing mechanism comprises a first rotating shaft and a first pressing plate which are fixedly connected, the first rotating shaft being rotatably connected to the carrying plate; the first fixing mechanism further comprises a first transmission assembly and a first driving member, the first driving member being connected to the carrying plate, the first transmission assembly comprising a first connecting rod, a second connecting rod and a third connecting rod which are hinged in sequence, an end of the first connecting rod away from the second connecting rod being fixedly connected to the first rotating shaft, an end of the third connecting rod away from the second connecting rod being connected to the first driving member, the first driving member being able to drive the third connecting rod to move, and then driving the first pressing plate to rotate through the second connecting rod, the first connecting rod and the first rotating shaft, so that the pressing plate is close to or away from the carrying surface; The second fixing mechanism includes a second rotating shaft, a rotating shaft and a second pressure plate. The rotating shaft is rotatably connected to the supporting plate. The second pressure plate includes a pressure block and an adapter plate. The second rotating shaft and the pressure block are respectively connected to opposite ends of the adapter plate. The rotating shaft is connected to the adapter plate and is located between the second rotating shaft and the pressure block. The second rotating shaft can drive the adapter plate and the pressure block to rotate around the rotating shaft so that the pressure block is close to or away from the supporting surface.

7. The fixing fixture according to claim 6, characterized in that: The second fixing mechanism further comprises a fixing block, a second transmission assembly and a second driving member, one end of the fixing block is connected to the bearing plate, and the other end is connected to the second driving member, and the rotating shaft is rotatably connected to the fixing block; The second transmission assembly includes a connecting block and a bearing, one end of the connecting block is provided with a slide groove, the bearing can be rotatably connected to the slide groove, the second rotating shaft is connected to the bearing and can move in the slide groove, the other end of the connecting block is connected to the second driving member, the second driving member can drive the second rotating shaft to rotate around the rotating axis through the connecting block and the bearing, and then drive the pressing block to rotate to approach or move away from the bearing surface.

8. The fixing fixture according to claim 7, characterized in that: The fixing fixture includes a plurality of the first fixing mechanisms and at least one of the second fixing mechanisms, the plurality of the first fixing mechanisms and at least one of the second fixing mechanisms are arranged around the supporting plate, and the first rotation axis and the rotation axis are both arranged parallel to the supporting plate.

9. The fixing fixture according to claim 7, characterized in that: The connecting block and the pressing block are surrounded to form an avoidance groove, at least one of the first driving members and the second fixing mechanism are located on the same side of the carrying plate, and at least one of the first driving members is located in the avoidance groove.

10. The fixing fixture according to claim 7, characterized in that: The fixing fixture further includes a dustproof plate, and the dustproof plate is connected to the first driving member and / or the second driving member.

11. The fixing fixture according to any one of claims 1 to 10, characterized in that: The pressing plate has a pressing surface, and the pressing surface is used to cooperate with the bearing surface to press the workpiece tightly. The pressing plate is provided with an anti-static rubber strip on the pressing surface.

12. The fixing fixture according to any one of claims 1 to 10, characterized in that: The fixing fixture comprises at least two mutually connected supporting plates, and each supporting plate is provided with at least one fixing mechanism.

13. The fixing fixture according to any one of claims 1 to 10, characterized in that: The carrying plate is provided with a plurality of adsorption holes, and the adsorption holes penetrate from the carrying surface to a side of the carrying plate away from the carrying surface.

14. A PCB laser processing device, characterized in that: The invention comprises a fixing fixture as claimed in any one of claims 1 to 13.

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