Positioning and fastening device and positioning and fastening method for PCB laser drilling machine

Abstract

The invention relates to the field of PCB laser drilling machines, in particular to a positioning and fastening device and method for a PCB laser drilling machine, and the positioning and fastening device for the PCB laser drilling machine comprises a positioning assembly, a pressing plate assembly and a fastening assembly. The fastening assembly comprises a transverse fastening assembly used for limiting and fixing the PCB and a longitudinal fastening assembly used for limiting, the transverse fastening assembly comprises a transverse clamping plate, a transverse air cylinder, a transverse guide rail and a pressing block assembly, the conveying direction of the transverse air cylinder faces the PCB to be processed, the transverse clamping plate is arranged at the output end of the transverse air cylinder, and the transverse clamping plate is arranged at the output end of the transverse air cylinder. A transverse guide rail is fixedly arranged on the transverse clamping plate, the transverse guide rail is connected with two pressing block assemblies with opposite movement directions through a sliding plate, the deformation quantity of a PCB can be effectively reduced through the synergistic effect of the transverse assembly and the pressing block assemblies, and inaccurate punching is effectively prevented.

Description

Technical Field

[0001] The invention relates to the field of PCB laser drilling machines, and in particular to a positioning and fastening device and a positioning and fastening method for a PCB laser drilling machine. Background Art

[0002] PCB is a printed board that forms point-to-point connections and printed components on a general substrate according to a predetermined design. It forms electrical connections between electronic components by laying conductive copper foil on the surface of insulating material and patterning it. These copper foil lines not only realize electrical connections between electronic components, but also support the components to be fixed on the board;

[0003] PCB is an important component in modern electronic devices. Punching is a key step in building circuit connections. However, during the processing and loading of PCB, PCB will often be deformed. Slight deformation will not affect the use of PCB, but the deformed PCB is prone to inaccurate or missing holes when punching, which will cause the circuit to not work properly, resulting in great cost and resource waste. Therefore, it is necessary to use a positioning and fastening device to make the PCB punch accurately.

[0004] However, most of the current PCB laser drilling machines use simple fixtures that can only achieve positioning and clamping functions, and are unable to tension PCB boards with a small amount of deformation, affecting the accuracy and precision of the drilling. Summary of the invention

[0005] The main purpose of the present invention is to provide a positioning and fastening device and a positioning and fastening method for a PCB board laser drilling machine, which solves the problem of inaccurate drilling due to deformation of the PCB board in the prior art.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A positioning and fastening device for a PCB laser drilling machine comprises a positioning and fastening mechanism, wherein the positioning and fastening mechanism comprises a positioning assembly, a pressure plate assembly and a fastening assembly, wherein the fastening assembly comprises a transverse fastening assembly for limiting and fixing the PCB board and a longitudinal fastening assembly for limiting the position, wherein two pairs of the transverse fastening assembly and the longitudinal fastening assembly are provided, and are symmetrically arranged on the upper surface of the positioning assembly, respectively, wherein the transverse fastening assembly comprises a transverse clamping plate, a transverse cylinder, a transverse guide rail and a pressure block assembly, wherein the transmission direction of the transverse cylinder is parallel to the upper surface of the positioning assembly, and the transmission direction of the transverse cylinder is toward the PCB board to be processed, wherein a transverse clamping plate is provided at the output end of the transverse cylinder, and a transverse guide rail is fixedly provided on the transverse clamping plate, wherein the transmission direction of the transverse guide rail is perpendicular to the transmission direction of the longitudinal fastening assembly, and two pressure block assemblies with opposite movement directions are connected to the transverse guide rail via a slide.

[0008] Furthermore, the pressure block assembly includes a first cylinder, a second cylinder, a fixed frame, a first rolling shaft and a pressure block, the first cylinder and the second cylinder are adjacently arranged on the slide of the transverse guide rail, the first cylinder is arranged on the edge side close to the positioning assembly, the second cylinder is arranged on the edge side away from the positioning assembly, the output end of the first cylinder is provided with a fixed frame, the fixed frame is provided with a first rolling shaft, the output end of the second cylinder is provided with a pressure block, and the transmission directions of the first cylinder and the second cylinder are both vertical directions.

[0009] Furthermore, the first rolling shaft is perpendicular to the transmission direction of the transverse guide rail, the outer surface of the first rolling shaft and the head of the pressing block are both made of rubber material, and the head of the pressing block is provided with a pattern.

[0010] Furthermore, the longitudinal fastening assembly includes a longitudinal clamping plate and a longitudinal cylinder. The transmission direction of the longitudinal cylinder is parallel to the upper surface of the positioning assembly, and the longitudinal clamping plate is provided at the output end of the longitudinal cylinder.

[0011] Furthermore, the pressure plate assembly includes a first slide rail, a first mounting frame, a second mounting frame, a third cylinder and a second rolling shaft, the first slide rail is fixedly arranged on the upper surface of the positioning assembly, the first slide rail is arranged on the outside of the longitudinal fastening assembly, the first slide rail is slidably connected to the first mounting frame through a slider, the first mounting frame is an inverted U-shape, the third cylinder is fixedly arranged on the first mounting frame, the transmission direction of the third cylinder is vertical and toward the direction of the positioning assembly, the output end of the third cylinder is provided with a second mounting frame, the second mounting frame is an inverted U-shape, and both ends of the second mounting frame are respectively connected to the second rolling shaft.

[0012] Furthermore, the outer surface of the second rolling shaft is made of rubber.

[0013] Furthermore, the positioning assembly includes a second slide rail, a third slide rail, and a placement plate. The second slide rail is slidably connected to the third slide rail via a slider, and the third slide rail is slidably connected to the placement plate via a slider, and the PCB board to be processed is placed on the placement plate.

[0014] A positioning and fastening method for a positioning and fastening device of a PCB laser drilling machine comprises the following steps:

[0015] S1 limit, first, put the PCB board to be processed on the placement plate, and two pairs of horizontal fastening components and vertical fastening components symmetrically arranged around the placement plate control the horizontal clamping plate through the horizontal cylinder, and the vertical cylinder controls the vertical clamping plate to limit the PCB board to be processed;

[0016] S2 tensioning, driving the fixing frame in the transverse fastening assembly on one side through the first cylinder, making the first rolling shaft contact with the PCB board, then driving the transverse guide rail to move the pressure block assembly in opposite directions, making the first rolling shaft contact with the PCB board in rolling manner, when the first rolling shaft moves out of the PCB board, the second cylinder controls the pressure block to press down, making the pressure block contact with and fix the tensioned PCB board; then, the longitudinal cylinder controls the longitudinal clamping plate to move away from the PCB board, driving the first slide rail to move the first mounting frame to the side of the pressure block away from the transverse cylinder, driving the second mounting frame through the third cylinder, making the second rolling shaft contact with the PCB board, then continuing to drive the first slide rail, making the second rolling shaft stop moving when it moves from the transverse fastening assembly on one side to the transverse fastening assembly on the other side;

[0017] S3 is fixed, and the fixing frame in the transverse fastening assembly on the other side is driven by the first cylinder to make the first rolling shaft contact with the PCB board, and then the transverse guide rail is driven to make the pressing block assembly move back to back, so that the first rolling shaft and the PCB board are in rolling contact. When the first rolling shaft moves out of the PCB board, the second cylinder controls the pressing block to press down, so that the pressing block contacts and fixes the tensioned PCB board. At this time, the entire surface of the PCB board is tensioned and fixed;

[0018] S4 positioning, the second slide rail is connected to the third slide rail through the sliding block, the third slide rail is connected to the placement plate through the sliding block, and the PCB board to be processed placed on the placement plate is moved to the specified position.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention uses a transverse fastening component on one side to tension one side of the PCB to be processed to eliminate deformation and fix it, and uses a pressure plate component to fully compress and tension the PCB from one side to the other side, and then the transverse fastening component on the other side rolls the tensioned PCB in the transverse direction to tension and fix it. The joint action of the transverse fastening component and the pressure plate component can effectively reduce the deformation of the PCB and effectively prevent inaccurate punching;

[0021] 2. The present invention uses rubber material on the outer surface of the first rolling shaft, the second rolling shaft and the head of the pressing block, and the head of the pressing block is provided with a pattern, which can effectively reduce the damage to the PCB board, and can also effectively increase the surface friction, further reducing the deformation of the PCB board;

[0022] 3. The present invention limits the position of the PCB board to be processed through the coordinated action of the transverse fastening component and the longitudinal fastening component, so as to prevent displacement during subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a front structural schematic diagram of the present invention;

[0024] Figure 2 It is a side view structural schematic diagram of the present invention;

[0025] Figure 3 It is a schematic diagram of a briquetting assembly of the present invention.

[0026] Reference numerals

[0027] 100.PCB board; 1. Positioning and fastening mechanism; 2. Positioning assembly; 3. Pressing plate assembly; 4. Fastening assembly; 21. Second slide rail; 22. Third slide rail; 23. Placement plate; 24. Second motor; 25. Third motor; 41. Horizontal fastening assembly; 42. Longitudinal fastening assembly; 411. Horizontal mounting plate; 412. Horizontal clamping plate; 413. Horizontal guide rail; 414. Horizontal cylinder; 415. Pressing block assembly; 416. Left-handed slide plate; 417. Right-handed slide plate; 421. Longitudinal mounting plate; 422. Longitudinal clamping plate; 423. Longitudinal cylinder; 4151. First cylinder; 4152. Second cylinder; 4153. Fixed frame; 4154. First rolling shaft; 4155. Pressing block; 31. First slide rail; 32. First mounting frame; 33. Second mounting frame; 34. Third cylinder; 35. Second rolling shaft. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figure 1-2 As shown, a positioning and fastening device of a laser drilling machine for a PCB board 100 comprises a positioning and fastening mechanism 1, wherein the positioning and fastening mechanism 1 comprises a positioning assembly 2, a pressure plate assembly 3 and a fastening assembly 4, wherein the positioning assembly 2 comprises a second slide rail 21, a third slide rail 22 and a placement plate 23, wherein the second slide rail 21 is driven by a second motor 24, wherein the second slide rail 21 is slidably connected to the third slide rail 22 via a slider, wherein the third slide rail 22 is driven by a third motor 25, wherein the third slide rail 22 is slidably connected to the placement plate 23 via a slider, wherein the transmission direction of the second slide rail 21 is perpendicular to the transmission direction of the third slide rail 22, wherein a PCB board 100 to be processed is placed on the placement plate 23, wherein the fastening assembly 4 comprises a transverse fastening assembly 41 for limiting and fixing the PCB board 100 and a longitudinal fastening assembly 42 for limiting, wherein two pairs of the transverse fastening assembly 41 and the longitudinal fastening assembly 42 are provided, which are symmetrically arranged on the upper surface of the placement plate 23 respectively and the transverse fastening assembly 41 is adjacent to the longitudinal fastening assembly 42.

[0030] like Figure 1-2As shown, the transverse fastening assembly 41 includes a transverse mounting plate 411, a transverse clamping plate 412, a transverse cylinder 414, a transverse guide rail 413, and a pressure block assembly 415. The transverse mounting plate 411 is fixedly arranged on one side of the upper surface of the placement plate 23, and the transverse cylinder 414 is arranged on the transverse mounting plate 411. The transmission direction of the transverse cylinder 414 is parallel to the upper surface of the placement plate 23, and the transmission direction of the transverse cylinder 414 is toward the PCB board 100 to be processed. The output end of the transverse cylinder 414 is provided with a transverse clamping plate 412, and the transverse clamping plate 412 is an inverted L-shaped right-angle end facing oppositely. A transverse guide rail 413 is fixedly arranged on the transverse clamping plate 412, and the transmission direction of the transverse guide rail 413 is perpendicular to the longitudinal fastening assembly 42. Two pressure block assemblies 415 with opposite movement directions are connected to the transverse guide rail 413 through a slider. The transverse guide rail 41 The left and right screw rods are provided with external threads in opposite directions at both ends, and the two external threads in opposite directions of the left and right screw rods are respectively connected with a left-handed slide plate 416 and a right-handed slide plate 417 meshed with the external threads, and the left-handed slide plate 416 and the right-handed slide plate 417 are respectively connected with a pressing block assembly 415. The longitudinal fastening assembly 42 includes a longitudinal mounting plate 421, a longitudinal clamping plate 422, and a longitudinal cylinder 423. The longitudinal mounting plate 421 is fixedly arranged on the upper surface of the placement plate 23, and the longitudinal mounting plate 421 is vertically arranged with the transverse mounting plate 411. The longitudinal cylinder 423 is arranged on the longitudinal mounting plate 421. The transmission direction of the longitudinal cylinder 423 is parallel to the upper surface of the placement plate 23, and the transmission direction of the longitudinal cylinder 423 is toward the PCB board 100 to be processed, and the transmission direction of the longitudinal cylinder 423 is perpendicular to the transmission direction of the transverse cylinder 414.

[0031] like Figure 3As shown, the pressing block assembly 415 includes a first cylinder 4151, a second cylinder 4152, a fixing frame 4153, a first rolling shaft 4154 and a pressing block 4155. The first cylinder 4151 and the second cylinder 4152 are adjacently arranged on the slide 100 of the transverse guide rail 413. The first cylinder 4151 is arranged on a side close to the edge of the placement plate 23, and the second cylinder 4152 is arranged on a side away from the edge of the placement plate 23. A fixing frame 4153 is arranged at the output end of the first cylinder 4151, and a first rolling shaft 4154 is arranged on the fixing frame 4153. The first rolling shaft 4154 can rotate about a central axis, and the first rolling shaft 4154 is perpendicular to the transmission direction of the transverse guide rail 413. The outer surface of the first rolling shaft 4154 is made of rubber material. The use of rubber material can effectively reduce the impact of the first roller on the PCB board 100 when the first roller rolls on the surface of the PCB board 100. 00, and can also effectively increase the surface friction and reduce the deformation of the PCB board 100. A pressure block 4155 is provided at the output end of the second cylinder 4152. The head of the pressure block 4155 is also made of rubber material, and the head of the pressure block 4155 is provided with a pattern. The use of rubber material and the pattern can increase the friction between the pressure block 4155 and the PCB board 100 and reduce damage, thereby preventing the PCB board 100 from position shifting during processing. The transmission directions of the first cylinder 4151 and the second cylinder 4152 are both vertical directions. The first rolling axis 4154 and the pressure block 4155 are adjacently arranged, and the first roller is located on the outside of the pressure block 4155, which can ensure that when the PCB board 100 is fixed after eliminating deformation, the deformed part is first tensioned by the rolling pressure of the first roller, and the PCB board 100 is fixed by the pressure block 4155 after the deformation is eliminated.

[0032] like Figure 2 As shown, the pressure plate assembly 3 includes a first slide rail 31, a first mounting frame 32, a second mounting frame 33, a third cylinder 34 and a second rolling shaft 35, the first slide rail 31 is fixedly arranged on the upper surface of the placement plate 23, the first slide rail 31 is arranged on the outer side of the longitudinal fastening assembly 42, the first slide rail 31 is slidably connected to the first mounting frame 32 through a slider, the first mounting frame 32 is an inverted U-shape, the third cylinder 34 is fixedly arranged on the first mounting frame 32, the transmission direction of the third cylinder 34 is vertical and toward the placement plate 23, the output end of the third cylinder 34 is provided with a second mounting frame 33, the second mounting frame 33 is an inverted U-shape, the two ends of the second mounting frame 33 are respectively connected to the second roller, the second rolling shaft 35 can rotate about the central axis, the outer surface of the second rolling shaft 35 is made of rubber material, the use of rubber material can effectively reduce the damage to the PCB board 100 when the second roller rolls on the surface of the PCB board 100, and can also effectively increase the surface friction and reduce the deformation of the PCB board 100.

[0033] The embodiment of the present invention further provides a positioning and fastening method, which uses the positioning and fastening device of the laser drilling machine for the PCB board 100 to perform positioning and fastening, and includes the following steps:

[0034] S1: Limiting. First, place the PCB board 100 to be processed on the placement plate 23. Two pairs of transverse fastening components 41 and longitudinal fastening components 42 symmetrically arranged around the placement plate 23 control the transverse clamping plate 412 through the transverse cylinder 414, and the longitudinal cylinder 423 controls the longitudinal clamping plate 422 to limit the PCB board 100 to be processed.

[0035] S2 is tensioned, the fixing frame 4153 in the transverse fastening assembly 41 on one side is driven by the first cylinder 4151 to make the first rolling shaft 4154 contact with the PCB board 100, and then the transverse guide rail 413 is driven to make the pressing block assembly 415 move in opposite directions, so that the first rolling shaft 4154 and the PCB board 100 are in rolling contact. When the first rolling shaft 4154 moves out of the PCB board 100, the second cylinder 4152 controls the pressing block 4155 to press down, so that the pressing block 4155 and the tensioned PCB board are in contact. 100 is contacted and fixed; then, the longitudinal cylinder 423 controls the longitudinal clamping plate 422 to move away from the PCB board 100, drives the first slide rail 31 to move the first mounting frame 32 to the side of the pressing block 4155 away from the transverse cylinder 414, drives the second mounting frame 33 through the third cylinder 34, makes the second rolling shaft 35 contact with the PCB board 100, and then continues to drive the first slide rail 31, makes the second rolling shaft 35 stop moving when it moves from one side transverse fastening assembly 41 to the other side transverse fastening assembly 41;

[0036] S3 is fixed, the fixing frame 4153 in the transverse fastening assembly 41 on the other side is driven by the first cylinder 4151 to make the first rolling shaft 4154 contact with the PCB board 100, and then the transverse guide rail 413 is driven to make the pressing block assembly 415 move back to back, so that the first rolling shaft 4154 and the PCB board 100 are in rolling contact. When the first rolling shaft 4154 moves out of the PCB board 100, the second cylinder 4152 controls the pressing block 4155 to press down, so that the pressing block 4155 is in contact with and fixed to the tensioned PCB board 100. At this time, the entire surface of the PCB board 100 is tensioned and fixed.

[0037] S4 positioning, the second slide rail 21 is slidably connected to the third slide rail 22 through the slider, the third slide rail 22 is slidably connected to the placement plate 23 through the slider, and the PCB board 100 to be processed placed on the placement plate 23 is moved to the specified position.

[0038] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A positioning and fastening device for a PCB laser drilling machine, comprising a positioning and fastening mechanism (1), wherein the positioning and fastening mechanism (1) comprises a positioning component (2), a pressure plate component (3) and a fastening component (4), characterized in that: The fastening assembly (4) comprises a transverse fastening assembly (41) for limiting and fixing the PCB board (100) and a longitudinal fastening assembly (42) for limiting. The transverse fastening assembly (41) and the longitudinal fastening assembly (42) are each provided with two pairs, and are symmetrically arranged on the upper surface of the positioning assembly (2). The transverse fastening assembly (41) comprises a transverse clamping plate (412), a transverse cylinder (414), a transverse guide rail (413), and a pressing block assembly (415). The transverse cylinder (414) transmits a direction of The lateral cylinder (414) is parallel to the upper surface of the positioning assembly (2), and the transmission direction of the lateral cylinder (414) is toward the PCB board (100) to be processed. The output end of the lateral cylinder (414) is provided with a lateral clamping plate (412), and a lateral guide rail (413) is fixedly provided on the lateral clamping plate (412). The transmission direction of the lateral guide rail (413) is perpendicular to the transmission direction of the longitudinal fastening assembly (42), and the lateral guide rail (413) is connected to two pressing block assemblies (415) with opposite movement directions through the slide plate (100).

2. A positioning and fastening device for a PCB laser drilling machine according to claim 1, characterized in that: The pressing block assembly (415) comprises a first cylinder (4151), a second cylinder (4152), a fixed frame (4153), a first rolling shaft (4154) and a pressing block (4155); the first cylinder (4151) and the second cylinder (4152) are adjacently arranged on a slide plate (100) of a transverse guide rail (413); the first cylinder (4151) is arranged on a side close to an edge of the positioning assembly (2); the second cylinder (4152) is arranged on a side away from an edge of the positioning assembly (2); a fixed frame (4153) is arranged at an output end of the first cylinder (4151); a first rolling shaft (4154) is arranged on the fixed frame (4153); a pressing block (4155) is arranged at an output end of the second cylinder (4152); and the transmission directions of the first cylinder (4151) and the second cylinder (4152) are both vertical directions.

3. A positioning and fastening device for a PCB laser drilling machine according to claim 2, characterized in that: The first rolling shaft (4154) is perpendicular to the transmission direction of the transverse guide rail (413); the outer surface of the first rolling shaft (4154) and the head of the pressing block (4155) are both made of rubber material; and the head of the pressing block (4155) is provided with a pattern.

4. A positioning and fastening device for a PCB laser drilling machine according to claim 1, characterized in that: The longitudinal fastening assembly (42) comprises a longitudinal clamping plate (422) and a longitudinal cylinder (423); the transmission direction of the longitudinal cylinder (423) is parallel to the upper surface of the positioning assembly (2); and the longitudinal clamping plate (422) is provided at the output end of the longitudinal cylinder (423).

5. The positioning and fastening device for a PCB laser drilling machine according to claim 1, characterized in that: The pressure plate assembly (3) comprises a first slide rail (31), a first mounting frame (32), a second mounting frame (33), a third cylinder (34) and a second rolling shaft (35), wherein the first slide rail (31) is fixedly arranged on the upper surface of the positioning assembly (2), the first slide rail (31) is arranged on the outer side of the longitudinal fastening assembly (42), the first slide rail (31) is slidably connected to the first mounting frame (32) via a slider, the first mounting frame (32) is in an inverted U shape, the third cylinder (34) is fixedly arranged on the first mounting frame (32), the transmission direction of the third cylinder (34) is vertical and faces the positioning assembly (2), the output end of the third cylinder (34) is provided with a second mounting frame (33), the second mounting frame (33) is in an inverted U shape, and both ends of the second mounting frame (33) are respectively connected to the second rolling shaft (35).

6. The positioning and fastening device for a PCB laser drilling machine according to claim 1, characterized in that: The outer surface of the second rolling shaft (35) is made of rubber.

7. The positioning and fastening device for a PCB laser drilling machine according to claim 1, characterized in that: The positioning assembly (2) comprises a second slide rail (21), a third slide rail (22), and a placement plate (23); the second slide rail (21) is slidably connected to the third slide rail (22) via a slider; the third slide rail (22) is slidably connected to the placement plate (23) via a slider; and a PCB board (100) to be processed is placed on the placement plate (23).

8. A positioning and fastening method for a positioning and fastening device of a PCB laser drilling machine according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: limiting position. First, the PCB board (100) to be processed is placed on the placement plate (23). Two pairs of transverse fastening components (41) and longitudinal fastening components (42) symmetrically arranged around the placement plate (23) control the transverse clamping plate (412) through the transverse cylinder (414), and the longitudinal cylinder (423) controls the longitudinal clamping plate (422) to limit the PCB board (100) to be processed; S2 is tensioned, and the fixing frame (4153) in the transverse fastening assembly (41) on one side is driven by the first cylinder (4151) to make the first rolling shaft (4154) contact the PCB board (100), and then the transverse guide rail (413) is driven to make the pressing block assembly (415) move in opposite directions, so that the first rolling shaft (4154) and the PCB board (100) are in rolling contact. When the first rolling shaft (4154) moves out of the PCB board (100), the second cylinder (4152) controls the pressing block (4155) to press down, so that the pressing block (4155) and the tensioned PCB board (100) are in contact. 00) is in contact with and fixed; then, the longitudinal cylinder (423) controls the longitudinal clamping plate (422) to move away from the PCB board (100), drives the first slide rail (31) to move the first mounting frame (32) to the side of the pressing block (4155) away from the transverse cylinder (414), drives the second mounting frame (33) through the third cylinder (34), makes the second rolling shaft (35) contact with the PCB board (100), and then continues to drive the first slide rail (31) to make the second rolling shaft (35) stop moving when it moves from one side transverse fastening assembly (41) to the other side transverse fastening assembly (41); S3 is fixed, the fixing frame (4153) in the transverse fastening assembly (41) on the other side is driven by the first cylinder (4151) to make the first rolling shaft (4154) contact with the PCB board (100), and then the transverse guide rail (413) is driven to make the pressing block assembly (415) move in opposite directions, so that the first rolling shaft (4154) and the PCB board (100) are in rolling contact. When the first rolling shaft (4154) moves out of the PCB board (100), the second cylinder (4152) controls the pressing block (4155) to press downward, so that the pressing block (4155) contacts and fixes the tensioned PCB board (100). At this time, the entire surface of the PCB board (100) is tensioned and fixed. S4 positioning, the second slide rail (21) is slidably connected to the third slide rail (22) through a slider, and the third slide rail (22) is slidably connected to the placement plate (23) through a slider, and the PCB board (100) to be processed placed on the placement plate (23) is moved to a designated position.

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