Punching equipment for PCB

Abstract

The utility model relates to punching equipment for a printed circuit board (PCB), which comprises a mounting base capable of selectively carrying out positioning support or sliding translation, a conveying assembly capable of continuously driving a workpiece clamping base to move is supported on the mounting base through a supporting assembly, a punching assembly is supported above the conveying assembly through the supporting assembly, and a punching hole is formed in the punching assembly. Auxiliary supporting side plates capable of providing fixed-height supporting for the workpiece clamping base are further supported on the two sides of the bearing plane limited by the conveying assembly through the supporting assembly, and a chip collecting groove located below the bearing plane limited by the conveying assembly is further formed in the axial lower side of the punching assembly. According to the PCB punching device, punching machining of a plurality of PCBs can be continuously completed at high frequency in the mode that the feeding rate can be adjusted, meanwhile, the PCBs can be conveniently taken and placed through the quick-disassembly type clamping structure, and the assembling and disassembling convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board processing equipment, in particular to a punching device for a PCB board. Background Art

[0002] PCB (Printed Circuit Board) board usually refers to a printed circuit board, also known as a printed circuit board. It is a common and necessary basic electronic component. As a support for electronic components, it is a necessary carrier element for electrical connection of electronic components. Therefore, it is widely used in the production and manufacturing of various electronic equipment. PCB punching processing refers to the use of punching equipment to process the required holes at one or more points on a board material of a specific size according to production requirements. Conventional PCB punching processing is to manually put the PCB board into a mold on the workbench for punching operation, and then move the PCB board out of the punching work area through the material transfer plate to complete the PCB punching process.

[0003] However, the traditional punching process requires a long punching interval to disassemble and assemble the mold and replace the PCB board before the second punching movement can be performed, resulting in a long cycle time for a single punching process, which makes the continuous work interval of the existing punching process too long and the continuous processing efficiency low. When facing the punching of large quantities of board materials, it takes a lot of manpower and material resources. In addition, the waste from the existing punching process is usually accumulated on the mold or the workbench, which will affect the secondary punching operation and require the staff to frequently clean the waste, resulting in a decrease in work efficiency and a certain degree of danger. Utility Model Content

[0004] The utility model aims to provide a PCB punching device which can continuously complete the punching processing of several PCB boards at a high frequency by means of an adjustable feed rate and at the same time arranges a quick-release clamping structure to facilitate the placement of the PCB boards and improve the convenience of loading and unloading, so as to solve the problems that the punching processing of the existing PCB boards has poor continuity, and a long interval time is required for the disassembly and replacement of the PCB boards. The positioning and clamping method of the PCB boards is relatively complicated and not convenient for the rapid completion of the disassembly and assembly operation, which reduces the continuous punching efficiency. In addition, the existing punching process is very prone to waste accumulation, which hinders the secondary punching operation, and requires workers to frequently clean the waste, resulting in a decrease in work efficiency and a certain degree of danger.

[0005] The technical solution adopted by the utility model is: a punching device for PCB boards, including a mounting base that can selectively perform positioning support or sliding translation, a conveying assembly that can continuously drive a workpiece clamping base to move is supported on the mounting base through a support assembly, a punching assembly is supported above the conveying assembly through the support assembly, and auxiliary support side plates that can provide fixed height support for the workpiece clamping base are also supported on both sides of the bearing plane defined by the conveying assembly through the support assembly, and a chip collection groove is also provided on the axial lower side of the punching assembly and is located below the bearing plane defined by the conveying assembly.

[0006] According to a preferred embodiment, the workpiece clamping base includes a seat body, an alignment vertical plate, a clamping head, a connecting rod, a limit spring and a magnetic plate, wherein two alignment vertical plates are arranged in alignment on the top of the seat body, and two connecting rods are respectively passed through different alignment vertical plates, and the facing ends of the connecting rods are connected to the clamping heads capable of aligning and clamping the plate workpiece; the connecting rod body located between the alignment vertical plate and the clamping head is provided with the limit spring capable of adjustably limiting the distance between the two clamping heads; the connecting rod passes through the alignment vertical plate and the end away from the clamping head is connected to the magnetic plate.

[0007] According to a preferred embodiment, a limiting guide groove for embedding the clamping head and limiting the movement direction of the clamping head is opened on the base body; a plurality of through slag discharge holes corresponding to the punching points of the plate workpiece are opened on the surface of the base body between the two clamping heads; and support bars are also arranged on both sides of the base body.

[0008] According to a preferred embodiment, the clamping head includes a connecting plate, a clamping right-angle groove and a guide connecting block, wherein the bottom of the connecting plate is connected to the guide connecting block slidably embedded in the limiting guide groove, and the clamping right-angle groove is arranged on the facing plate surfaces of the two connecting plates arranged in opposite positions; the side of the connecting plate away from the clamping right-angle groove is connected to the connecting rod.

[0009] According to a preferred embodiment, the transmission wheel of the transmission assembly is supported on the mounting base through the first support column of the support assembly, and the wheel surface of the two transmission wheels supported on the mounting base is sleeved with a transmission double belt, and the transmission wheel is also transmission-connected to a rotating drive unit installed on the top of the first support column.

[0010] According to a preferred embodiment, two parallel belt winding rings are arranged on the transmission wheel, and the two belt bodies of the transmission double belt are respectively wound on the belt winding rings, and a plurality of the seat bodies are installed on the transmission double belt at intervals.

[0011] According to a preferred embodiment, the support assembly includes the first support column supporting the conveying assembly, the second lifting support column supporting the punching assembly, and the third lifting support rod supporting the auxiliary supporting side plate.

[0012] According to a preferred embodiment, the two main board bodies of the auxiliary supporting side plates are symmetrically arranged on both sides of the conveying component, and the facing surfaces of the main board bodies are provided with strip grooves capable of accommodating at least part of the support strips, and both ends of the strip grooves are provided with flared openings capable of guiding the support strips for translational motion to enter the strip grooves, and both ends of the main board bodies are also provided with electromagnetic plates capable of magnetically attracting and pulling the magnetic attraction plates.

[0013] According to a preferred embodiment, the punching assembly includes a top plate, a punching cylinder, a punching plate and a punching column, wherein the top plate is installed on the top of the second lifting support column, and the punching cylinder is arranged on the lower surface of the top plate; the punching plate is arranged at the axial lower end of the punching cylinder, and the punching column is adjustably inserted on the punching plate.

[0014] According to a preferred embodiment, the chip collecting groove is installed between two parallel belt sections of the conveyor double belt through a transverse supporting gantry.

[0015] The beneficial effects of the utility model are:

[0016] The transmission assembly provided in the present application can continuously drive the workpiece clamping base to move, so that the plate workpiece clamped by the workpiece clamping base can be orderly and directed to pass through the punching processing area defined by the punching assembly, so as to realize continuous punching processing, without adding additional intermittent stagnation time to perform the disassembly and assembly operation of the plate workpiece, so that the disassembly and assembly operation of the plate workpiece can be carried out synchronously with the punching processing to continuously complete the punching processing of the batch plate workpiece. Compared with the existing single-station punching equipment, the present application can continuously change the position of the workpiece clamping base to realize continuous punching processing, so as to improve the processing efficiency. The workpiece clamping base provided in the present application can effectively position the processing placement state of the plate workpiece by diagonal clamping, and can correct the placement position of the plate workpiece with a skewed placement position to ensure the accuracy of the punching processing position. The workpiece clamping base provided in the present application also has a through hole to effectively discharge punching debris, so as to avoid the debris accumulated and remaining in the working area affecting the secondary punching processing. The auxiliary support side plates provided in the present application can provide effective support force for the workpiece clamping base within a certain range, so as to stably position the height of the workpiece clamping base during the punching process, thereby improving the accuracy and adequacy of the punching process and avoiding problems such as bottom adhesion caused by insufficient punching. The auxiliary support side plates can also pull the workpiece clamping base to expand and move in the forward and backward translation position in the non-punching process area to increase the distance between the clamping heads, thereby facilitating and quickly completing the placement and removal of the plate workpiece, thereby reducing the complexity of disassembly and assembly and improving the efficiency of disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a preferred PCB punching device proposed by the utility model;

[0018] Figure 2 It is a partial top view of a transmission wheel of a preferred PCB punching device proposed by the utility model;

[0019] Figure 3 It is a side view of a workpiece clamping base of a preferred PCB punching device proposed by the utility model;

[0020] Figure 4 It is a plan view of a workpiece clamping base of a preferred PCB board punching device proposed by the utility model.

[0021] Reference numerals list

[0022] 1: Mounting base; 2: Support assembly; 3: Conveying assembly; 4: Workpiece clamping base; 5: Punching assembly; 6: Auxiliary supporting side plate; 7: Chip collecting groove; 21: First supporting column; 22: Second lifting supporting column; 23: Third lifting supporting rod; 24: Horizontal supporting gantry; 31: Transmission wheel; 32: Conveying double belt; 33: Rotating driving unit; 41: Base; 42: Alignment vertical plate; 43: Clamping head; 44 : Connecting rod; 45: Magnetic plate; 46: Limit spring; 51: Top plate; 52: Punching cylinder; 53: Punching plate; 54: Punching column; 61: Main plate; 62: Electromagnetic plate; 311: Belt ring; 411: Limit guide groove; 412: Through slag discharge hole; 413: Support bar; 431: Connecting plate; 432: Clamping right-angle groove; 433: Guide connecting block; 611: Strip groove; 612: Expanding. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be briefly introduced below in combination with the drawings and the descriptions of the embodiments or the prior art. Obviously, the following descriptions of the structures of the drawings are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] The technical solution provided by the present invention will be described in detail below by way of embodiments with reference to the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In some examples, some implementation methods are not described or are not described in detail because they belong to existing or conventional technologies.

[0025] In addition, the technical features recorded in this article, or the steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can also be combined in any suitable manner in one or more embodiments. For those skilled in the art, it is easy to understand that the steps or operation sequence of the methods related to the embodiments provided herein can also be changed. Any order in the drawings and embodiments is only for illustrative purposes and does not imply a requirement to follow a certain order unless it is explicitly stated that a certain order is required.

[0026] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, under reasonable circumstances (not constituting a self-contradiction), include direct and indirect connections (couplings).

[0027] The following is a detailed description with reference to the accompanying drawings.

[0028] Example 1

[0029] The present application provides a punching device for a PCB board, which includes a mounting base 1, a supporting assembly 2, a conveying assembly 3, a workpiece clamping base 4, a punching assembly 5, an auxiliary supporting side plate 6 and a chip collecting groove 7.

[0030] according to Figure 1-4 In a specific embodiment shown, the mounting base 1 can selectively perform positioning support or sliding translation in the working area. A conveying assembly 3 capable of continuously driving the workpiece clamping base 4 to move is supported on the mounting base 1 through the support assembly 2. A punching assembly 5 is supported above the conveying assembly 3 through the support assembly 2. Auxiliary support side plates 6 capable of providing fixed height support for the workpiece clamping base 4 are also supported on both sides of the bearing plane defined by the conveying assembly 3 through the support assembly 2. A chip collecting groove 7 is also provided on the axial lower side of the punching assembly 5 and is located below the bearing plane defined by the conveying assembly 3. The transmission assembly 3 provided in the present application can continuously drive the workpiece clamping base 4 to move, so that the plate workpiece clamped by the workpiece clamping base 4 is orderly and directional-transmitted through the punching processing area defined by the punching assembly 5, so as to realize continuous punching processing, and there is no need to add additional intermittent stagnation time to perform the disassembly and assembly operation of the plate workpiece, so that the disassembly and assembly operation of the plate workpiece can be carried out synchronously with the punching processing and the punching processing of the batch plate workpiece can be completed continuously. Compared with the existing single-station punching equipment, the present application can continuously change the position of the workpiece clamping base 4 to realize continuous punching processing, so as to improve the processing efficiency. The workpiece clamping base 4 provided in the present application can effectively locate the processing placement state of the plate workpiece by diagonal clamping, and can correct the placement position of the plate workpiece with a skewed placement position to ensure the accuracy of the punching processing position. The workpiece clamping base 4 provided in the present application also has a through hole to effectively discharge punching debris, so as to avoid the debris accumulated and remaining in the working area affecting the secondary punching processing. The auxiliary support side plate 6 provided in the present application can provide effective support force for the workpiece clamping base 4 within a certain range, so as to stably position the height of the workpiece clamping base 4 during the punching process, thereby improving the accuracy and sufficiency of the punching process, and avoiding problems such as bottom adhesion caused by insufficient punching. The auxiliary support side plate 6 can also pull the workpiece clamping base 4 to expand and move in the front and rear translation position of the non-punching process area to increase the distance between the clamping heads 43, thereby facilitating and quickly completing the placement and removal of the plate workpiece, thereby reducing the complexity of disassembly and assembly, and improving the efficiency of disassembly and assembly.

[0031] Preferably, the mounting base 1 is provided with lifting support feet and universal rollers, so as to adjustably position and support the mounting base 1 to provide a stable support plane or to translate the mounting base 1 to adjust its installation position as required.

[0032] Preferably, the support assembly 2 includes a first support column 21 supporting the conveying assembly 3, a second lifting support column 22 supporting the punching assembly 5, a third lifting support rod 23 supporting the auxiliary supporting side plate 6, and a horizontal support gantry 24 for positioning and installing the chip collecting groove 7. The support assembly 2 provided in the present application can support multiple components on the mounting base 1 in a partitioned manner, so as to facilitate the directional transmission of the plate workpiece while continuously completing the punching process of the workpiece, and facilitate the functional components to locate the clamped state of the plate workpiece in a partitioned manner and facilitate the disassembly and assembly and the collection of debris.

[0033] Preferably, the transmission wheel 31 of the transmission assembly 3 is supported on the mounting base 1 through the first support column 21 of the support assembly 2. Further preferably, the wheel body surface of the two transmission wheels 31 supported on the mounting base 1 is sleeved with a transmission double belt 32. Preferably, the transmission wheel 31 is also transmission-connected with a rotation drive unit 33 installed on the top of the first support column 21. Further preferably, the rotation drive unit 33 is a stepping rotary motor with an adjustable intermittent period. Preferably, two parallel belt winding rings 311 are provided on the transmission wheel 31. Specifically, the two belt bodies of the transmission double belt 32 are respectively sleeved on the belt winding ring 311. Preferably, a plurality of seat bodies 41 are installed on the transmission double belt 32 at intervals so that the two belt bodies of the transmission double belt 32 are symmetrically clamped on the side bottom surface of the seat body 41. The transmission assembly 3 provided in the present application can continuously drive a plurality of workpiece clamping bases 4 to perform stepping motion and orderly and intermittently move to the bottom of the punching assembly 5, so that the punching assembly 5 that periodically moves downward can periodically perform punching processing on the PCB board clamped by the workpiece clamping base 4. The transmission double belt 32 provided in the present application is connected to the workpiece clamping base 4 by being connected in parallel to the bottom surface of the seat body 41. In the specific installation process, the seat body 41 can be provided with a lower protruding block that is clamped between the two belt bodies to ensure the accuracy of the connection positioning, so as to facilitate the installation of the seat body 41 on the transmission double belt 32 at intervals by bolt connection or the like.

[0034] Preferably, the workpiece clamping base 4 includes a seat body 41, an alignment vertical plate 42, a clamping head 43, a connecting rod 44, a magnetic suction plate 45 and a limit spring 46. Preferably, two alignment vertical plates 42 are arranged in alignment on the top of the seat body 41. Preferably, two connecting rods 44 are respectively passed through different alignment vertical plates 42. Preferably, the ends of the connecting rods 44 facing each other are connected with clamping heads 43 capable of alignment clamping the plate workpiece, so that the two clamping heads 43 can limit the plate workpiece placed on the seat body 41 in an alignment clamping and limiting manner. Preferably, a limit spring 46 capable of adjustably limiting the distance between the two clamping heads 43 is provided on the rod body of the connecting rod 44 between the alignment vertical plate 42 and the clamping head 43. Preferably, the connecting rod 44 passes through the alignment vertical plate 42 and is connected to a magnetic plate 45 at one end away from the clamping head 43, so that the magnetic plate 45 can pull the two clamping heads 43 under the action of the external magnetic attraction to find the back movement and gradually move away, so as to expand the distance between the two clamping heads 43, so as to facilitate the disassembly and assembly of the plate workpiece. The seat body 41 provided in the present application is detachably installed on the conveyor double belt 32 at intervals, so as to continuously drive a number of plate workpieces clamped at the same spacing to perform directional translation and complete the punching process under the punching assembly 5 in turn. The limit spring 46 provided in the present application can limit the distance between the alignment vertical plate 42 and the clamping head 43, thereby limiting the distance between the two clamping heads 43, so as to effectively align and clamp the plate workpiece. The magnetic plate 45 provided in the present application can be pulled in a specific motion section so that the two aligned clamping heads 43 move back to each other and increase the distance between them, so as to facilitate the placement and removal of the plate workpiece. Furthermore, the two clamping heads 43 can correct the placement position of a slightly tilted plate workpiece by means of diagonal clamping, so as to accurately locate the position of the plate workpiece to be punched.

[0035] Preferably, a limiting guide groove 411 is provided on the seat body 41 for embedding the clamping head 43 and limiting the movement direction of the clamping head 43. Preferably, a plurality of through slag discharge holes 412 corresponding to the punching points of the plate workpiece are provided on the surface of the seat body 41 between the two clamping heads 43. Preferably, support bars 413 are also provided on both sides of the seat body 41. The limiting guide groove 411 provided in the present application can assist in limiting the translation direction of the clamping head 43 to ensure the accuracy of the alignment and clamping. The through slag discharge holes 412 provided in the present application can discharge the debris discharged by the punching of the plate workpiece downward, so that the debris directly falls into the chip collecting groove 7, so as to facilitate the collection of debris, avoid the debris falling around and accumulating on the seat body 41 and affecting the secondary punching operation, improve the cleanliness of the punching processing environment, and avoid the debris from causing adverse effects on the punching process. The support bar 413 provided in the present application can cooperate with the main board body 61 to provide supporting force so as to ensure the installation height of the seat body 41 at the punching station, so that when it is subjected to the downward pressure force of the punching, it can ensure the stability of the installation height, so that the punching assembly 5 can effectively penetrate the plate workpiece it clamps and realize effective punching processing.

[0036] Preferably, the clamping head 43 includes a connecting plate 431, a clamping right-angle groove 432 and a guide connecting block 433. Preferably, the bottom of the connecting plate 431 is connected to a guide connecting block 433 that is slidably embedded in the limiting guide groove 411. Preferably, the two connecting plates 431 arranged in opposite positions are provided with clamping right-angle grooves 432 on the opposite plate surfaces, so that the two clamping right-angle grooves 432 limit the plate workpiece by limiting against the two diagonal angles of the plate workpiece. Preferably, the side of the connecting plate 431 away from the clamping right-angle groove 432 is connected to the connecting rod 44. The clamping head 43 provided in the present application constructs a clamping right-angle groove 432, so that the clamping of the plate workpiece is completed in an effective and self-calibrating manner in a way of clamping two right-angle edges in position, thereby ensuring the accuracy of clamping positioning and self-correction ability, so as to accurately clamp and position the workpiece to the clamped station, so as to facilitate the punching assembly 5 to accurately complete the punching process, thereby improving the quality of the punching process.

[0037] Preferably, the punching assembly 5 includes a top plate 51, a punching cylinder 52, a punching plate 53 and a punching column 54. Preferably, the top plate 51 is installed on the top of the second lifting support column 22. Further preferably, the punching cylinder 52 is provided on the lower surface of the top plate 51. Preferably, the punching plate 53 is provided at the axial lower end of the punching cylinder 52. Further preferably, the punching column 54 is adjustably inserted on the punching plate 53. The punching assembly 5 provided in the present application can be periodically lowered so that the punching column 54 regularly passes through the plate workpiece to complete the punching process. The punching plate 53 is provided with a plurality of threaded connection holes, so that the punching column 54 can be threadedly inserted on the punching plate 53 in a manner of adjustable connection position, so as to facilitate punching processing in different arrangements.

[0038] Preferably, the two main board bodies 61 of the auxiliary supporting side plates 6 are symmetrically arranged on both sides of the conveying assembly 3. Further preferably, the facing surfaces of the main board body 61 are provided with a strip groove 611 capable of accommodating at least part of the support bar 413. Preferably, the two ends of the strip groove 611 are provided with a flare 612 capable of guiding the support bar 413 for translational motion to enter the strip groove 611. Preferably, the two ends of the main board body 61 are also provided with an electromagnetic plate 62 capable of magnetically attracting and pulling the magnetic plate 45. The main board body 61 provided in the present application can position the height of the support bar 413 by slidingly engaging with the support bar 413, so as to ensure the stability of the bearing height of the seat body 41 during the punching process, avoid the seat body 41 from being subjected to pressure and undergoing ups and downs, and ensure the effectiveness and stability of the punching process. The electromagnetic plate 62 provided in the present application can shadow the magnetic suction plate 45 in a specific area so that the clamping head 43 releases the limit on the plate workpiece, so as to facilitate the installation and removal of the plate workpiece, greatly reducing the tediousness of the disassembly process, thereby improving the convenience and efficiency of taking and placing materials.

[0039] Preferably, the chip collecting groove 7 is installed between two parallel belt bodies of the conveyor double belt 32 through the horizontal support door frame 24. The chip collecting groove 7 provided in the present application is located directly below the punching assembly 5 to collect the debris generated by the punching process for subsequent cleaning.

[0040] The present utility model is not limited to the above optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope of the claims of the present utility model fall within the protection scope of the present utility model. Those skilled in the art should understand that the present utility model specification and its drawings are illustrative and do not constitute limitations on the claims. The protection scope of the present utility model is defined by the claims and their equivalents. Throughout the text, the features guided by "preferably" are only an optional method and should not be understood as having to be set. Therefore, the applicant reserves the right to abandon or delete the relevant preferred features at any time.

Claims

1. A punching device for a PCB board, comprising a mounting base (1) that can selectively perform positioning support or sliding translation, characterized in that: A conveying assembly (3) capable of continuously driving a workpiece clamping base (4) to move is supported on the mounting base (1) via a supporting assembly (2). A punching assembly (5) is supported above the conveying assembly (3) through the supporting assembly (2), and auxiliary supporting side plates (6) capable of providing fixed height support for the workpiece clamping base (4) are also supported on both sides of the bearing plane defined by the conveying assembly (3) through the supporting assembly (2). A chip collecting groove (7) is also provided on the axial lower side of the punching assembly (5) and is located below the load-bearing plane defined by the conveying assembly (3).

2. The punching device for PCB board according to claim 1, characterized in that: The workpiece clamping base (4) comprises a base body (41), an alignment vertical plate (42), a clamping head (43), a connecting rod (44), a limit spring (46) and a magnetic attraction plate (45), wherein: Two alignment vertical plates (42) are arranged in alignment on the top of the seat body (41), and two connecting rods (44) are respectively passed through different alignment vertical plates (42), and the ends of the connecting rods (44) facing each other are connected to the clamping heads (43) capable of clamping the plate workpiece in alignment; The connecting rod (44) is provided with a limit spring (46) capable of adjustably limiting the distance between the two clamping heads (43) on the rod body between the alignment vertical plate (42) and the clamping head (43); The connecting rod (44) passes through the alignment vertical plate (42) and one end away from the clamping head (43) is connected to the magnetic attraction plate (45).

3. The punching device for PCB board according to claim 2, characterized in that: The seat body (41) is provided with a limiting guide groove (411) for embedding the clamping head (43) and limiting the movement direction of the clamping head (43); A plurality of plates are provided on the surface of the seat body (41) between the two clamping heads (43). A through slag removal hole (412) corresponding to the punching point of the body workpiece; Support bars (413) are also provided on both sides of the seat body (41).

4. The punching device for PCB board as claimed in claim 3, characterized in that: The clamping head (43) comprises a connecting plate (431), a clamping right-angle groove (432) and a guide connecting block (433), wherein: The bottom of the connecting plate (431) is connected to the guiding connecting block (433) slidably embedded in the limiting guiding groove (411), and the clamping right-angle groove (432) is arranged on the facing plate surfaces of the two connecting plates (431) arranged in opposite positions; The side of the connecting plate (431) away from the clamping right-angle groove (432) is connected to the connecting rod (44).

5. The punching device for PCB board as claimed in claim 4, characterized in that: The transmission wheel (31) of the transmission assembly (3) is supported on the mounting base (1) via the first support column (21) of the support assembly (2), and the surfaces of the wheel bodies of the two transmission wheels (31) supported on the mounting base (1) are sleeved with double transmission belts (32). The transmission wheel (31) is also in transmission connection with a rotation driving unit (33) installed at the top end of the first support column (21).

6. The punching device for PCB board according to claim 5, characterized in that: Two parallel belt winding rings (311) are arranged on the transmission wheel (31), and two belt bodies of the transmission double belt (32) are respectively wound on the belt winding rings (311). A plurality of the seat bodies (41) are installed at intervals on the double conveyor belt (32).

7. The punching device for PCB board according to claim 6, characterized in that: The support assembly (2) comprises the first support column (21) supporting the conveying assembly (3), the second lifting support column (22) supporting the punching assembly (5), and the third lifting support rod (23) supporting the auxiliary supporting side plate (6).

8. The punching device for PCB board according to claim 7, characterized in that: The auxiliary support side The two main bodies (61) of the plate (6) are symmetrically arranged on both sides of the conveying assembly (3), and the facing surfaces of the main bodies (61) are provided with strip grooves (611) capable of accommodating at least part of the support bar (413), and the two ends of the strip groove (611) are provided with expansion openings (612) capable of guiding the support bar (413) in translational motion to enter the strip groove (611). Electromagnetic plates (62) capable of magnetically attracting the magnetic attraction plate (45) are also provided at both ends of the main body (61).

9. The punching device for PCB board according to claim 8, characterized in that: The punching assembly (5) comprises a top plate (51), a punching cylinder (52), a punching plate (53) and a punching column (54), wherein: The top plate (51) is installed on the top of the second lifting support column (22), and the punching cylinder (52) is provided on the lower surface of the top plate (51); A punching plate (53) is provided at the axial lower end of the punching cylinder (52), and the punching column (54) is adjustably inserted on the punching plate (53).

10. The punching device for PCB board according to claim 9, characterized in that: The chip collecting groove (7) is installed between two parallel belt bodies of the conveying double belt (32) through a transverse supporting door frame (24).

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