Spraying device with positioning tool for PCB processing

Abstract

The invention relates to the technical field of PCB (printed circuit board) processing devices, and discloses a spraying device with a positioning tool for PCB processing, which comprises a spraying machine and a U-shaped bracket fixedly connected to the spraying machine, and further comprises two fixing parts arranged on the spraying machine in a mirror image manner, and a positioning tool arranged on the U-shaped bracket, the power part is arranged on the U-shaped bracket; the overturning part is mounted on the U-shaped bracket; the fixing part comprises a transmission assembly, and the transmission assembly is arranged on the U-shaped support. And the fixing assembly is arranged on the transmission assembly. According to the spraying device, by arranging the fixing part, the problems that in the using process of an existing spraying device, multiple directions of a PCB are not convenient to restrain, the PCB is difficult to effectively fix, the PCB is prone to displacement and shaking in the spraying process, the fixing stability is poor, the spraying quality is affected, and meanwhile the production efficiency is reduced are solved.

Description

Technical Field

[0001] This invention relates to the field of PCB board processing equipment technology, specifically to a spraying device for PCB board processing with positioning fixtures. Background Technology

[0002] With the rapid development of the electronic information industry, the market demand for PCB boards, as the core basic component of electronic devices, continues to rise. In the production and processing of PCB boards, the spraying process is a key link to ensure the insulation performance and appearance quality of the circuit board. Therefore, high-precision and high-stability PCB board processing spraying equipment is needed to perform spraying operations on PCB boards.

[0003] However, existing spraying equipment is not convenient for constraining the PCB board in multiple directions during use, making it difficult to effectively fix the PCB board. This causes the PCB board to easily shift and shake during the spraying process, resulting in poor fixation stability, which in turn affects the spraying quality and reduces production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a PCB board processing spraying device with positioning fixture. By setting a fixing part, the invention solves the problem that existing spraying devices are not convenient to constrain the PCB board in multiple directions during use, making it difficult to effectively fix the PCB board. This results in the PCB board being prone to displacement and shaking during the spraying process, with poor fixing stability, which in turn affects the spraying quality and reduces production efficiency.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a PCB board processing spraying device with positioning fixtures, comprising a spraying machine and a U-shaped bracket fixedly connected to the spraying machine, and further comprising: a fixing part, wherein two fixing parts are provided and the two fixing parts are arranged in a mirror image on the spraying machine; a power part, wherein the power part is disposed on the U-shaped bracket; a flipping part, wherein the flipping part is mounted on the U-shaped bracket; the fixing part includes a transmission assembly, wherein the transmission assembly is disposed on the U-shaped bracket; a fixing component, wherein the fixing component is disposed on the transmission assembly; the transmission assembly includes a rectangular plate disposed within the U-shaped bracket, wherein a hollow shaft passes through the rectangular plate, and the hollow shaft rotates with the rectangular plate. The hollow shaft is rotatably connected to a rectangular plate. A bracket is fixedly connected to the outer wall of the rectangular plate. A cylindrical rod slides through the bracket and is located inside the hollow shaft. A transmission groove is formed on the outer wall of the cylindrical rod, and a transmission block is provided in the transmission groove. The transmission block is fixedly connected to the inner wall of the hollow shaft. An elastic element is provided on the cylindrical rod. The bracket is C-shaped. The elastic element includes an anti-slip fixing plate fixedly connected to the side of the cylindrical rod away from the bracket. A spring is sleeved on the outer wall of the cylindrical rod. The side of the spring closest to the bracket is fixedly connected to the bracket, and the side of the spring away from the bracket is fixedly connected to the anti-slip fixing plate.

[0007] Furthermore, the power unit includes a support assembly disposed within a U-shaped bracket; and a power assembly disposed on the support assembly.

[0008] Furthermore, the flipping part includes a rotating assembly mounted on a U-shaped bracket; and a driving assembly disposed on the left side of the U-shaped bracket.

[0009] Furthermore, the fixing component includes two limiting slide grooves formed on the rectangular plate, each of which is slidably connected to a slider, and each of the two sliders is fixedly connected to a fixing clamp. A transmission rod is fixedly connected to the outer wall of the hollow shaft, and two hinge rods are hinged on the transmission rod. The two hinge rods are respectively hinged to the two sliders; the two hinge rods are arranged in a circumferential array.

[0010] Furthermore, the support assembly includes two grooved plates disposed within a U-shaped bracket, with a support rod fixedly connected between the two grooved plates. The support rod passes through the two rectangular plates and is slidably connected to the two rectangular plates. The two grooved plates are respectively located on opposite sides of the two rectangular plates.

[0011] Furthermore, the power assembly includes a bidirectional threaded rod rotatably connected between two slotted plates. The bidirectional threaded rod passes through two rectangular plates and is threadedly connected to the two rectangular plates. The left side of the bidirectional threaded rod passes through the slotted plate located on the left side. A motor is fixedly connected to the left side of the slotted plate located on the left side. The output shaft of the motor is fixedly connected to the bidirectional threaded rod via a coupling. Several telescopic protective sleeves are sleeved on the outer wall of the bidirectional threaded rod. Three telescopic protective sleeves are provided. The two sides of the telescopic protective sleeve located in the middle are fixedly connected to the two rectangular plates respectively. The two telescopic protective sleeves located on the left and right sides are fixedly connected to the two slotted plates and the two rectangular plates respectively.

[0012] Furthermore, the rotating assembly includes rotating shafts passing through the left and right sides of the U-shaped bracket, respectively. Both rotating shafts are rotatably connected to the U-shaped bracket. Support plates are fixedly connected to the sides of the two rotating shafts that are close to each other. Two cylindrical support rods are fixedly connected between the two support plates. The two cylindrical support rods pass through two slotted plates and are slidably connected to the two cylindrical support rods. A transmission component is provided on the rotating shaft on the left side. The transmission component includes a slotted plate fixedly connected to the outer wall of the rotating shaft on the left side. A transmission rod is fixedly connected to the left side of the slotted plate and is located in the drive groove. The transmission rod is in contact with the drive groove.

[0013] Furthermore, the drive assembly includes a trapezoidal slide groove on the left side of the U-shaped bracket, a drive plate slidably connected to the trapezoidal slide groove, an electric telescopic rod fixedly connected to the left side of the U-shaped bracket, the output end of the electric telescopic rod being fixedly connected to the drive plate, and a drive groove on the right side of the drive plate; the drive groove consists of two straight grooves and one inclined groove.

[0014] Furthermore, the spraying machine used in this device is the Pengkun PK-6Z spraying machine. Its working principle is to coordinate the control of the gantry motion mechanism and the spray gun assembly through a six-axis linkage system. During operation, the positioning fixture completes the precise fixation of the workpiece. Then, the control system drives the spray gun to complete multi-dimensional movement and posture adjustment in space according to the preset spraying path. At the same time, the spray gun realizes quantitative atomization spraying of paint according to the set spraying logic, forming a uniform coating on the surface of the workpiece. If a double-sided spraying process is involved, the equipment can cooperate with the fixture to complete the workpiece flipping and secondary precise positioning, ensuring the automation and consistency of the overall spraying process.

[0015] The present invention has the following beneficial effects:

[0016] (1) By setting a fixing part, when the two anti-slip fixing plates come into contact with the PCB board, the two rectangular plates continue to be driven to move closer to each other. The rectangular plates drive the hollow shaft to move on the cylindrical rod and squeeze the spring, so that the spring deforms and generates elastic force. Under the cooperation of the transmission groove and the transmission block on the cylindrical rod, the hollow shaft rotates, and then drives the two sliders to move closer to each other in the limiting groove through the transmission rod and the hinge rod, so that the fixing clamp clamps the front and rear sides of the PCB board. In cooperation with the anti-slip fixing plates on both sides, the PCB board is fixed in all directions. The PCB board is constrained from multiple directions such as left, right and front and back, which effectively prevents the PCB board from shifting or shaking during the spraying process, significantly improves the fixing stability and improves the production efficiency.

[0017] (2) By setting up a power unit, when in use, the PCB board is placed between two anti-slip fixing plates and four fixing clamps. The motor is started to drive the bidirectional threaded rod to rotate. With the cooperation of the threaded rod and the support rod, the two rectangular plates are driven to move closer to each other. The rectangular plates drive the cylindrical rod and the anti-slip fixing plate to move to both sides of the PCB board through the bracket, thereby achieving clamping and positioning of the PCB board. At the same time, the telescopic protective sleeve deforms with the movement of the rectangular plate to protect the threaded part of the motor. The parallel cooperation between the support rod and the bidirectional threaded rod provides stable support for the transmission, improves the overall stability of the mechanism, and improves the clamping efficiency.

[0018] (3) By setting up a flipping part, when it is necessary to adjust the PCB board spraying surface, the electric telescopic rod is activated to push the drive plate to slide in the trapezoidal groove. With the shape matching of the drive groove, the drive groove drives the groove plate to make a circular motion through the transmission rod two, thereby driving the left rotating shaft to rotate and achieve a 180-degree flip. The left rotating shaft then drives the right rotating shaft to rotate synchronously through the support plate and the cylindrical support rod. Finally, the support rod and the bidirectional threaded rod drive the fixed PCB board to complete the flipping, realizing the spraying operation on the other side of the PCB board. The PCB board can be flipped 180 degrees without manual disassembly and assembly, which greatly improves the efficiency of double-sided spraying. It can be connected with the spraying process to improve the automation level of the device.

[0019] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a partial structural schematic diagram of the U-shaped bracket of the present invention;

[0023] Figure 3 This is a partial cross-sectional view of the fixing part of the present invention;

[0024] Figure 4 This is a partial structural schematic diagram of the transmission groove of the present invention;

[0025] Figure 5 This is a partial cross-sectional view of the power unit of the present invention;

[0026] Figure 6 This is a partial cross-sectional view of the flipping part of the present invention;

[0027] Figure 7 This is a schematic diagram of a partial exploded structure of the driving component of the present invention.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] In the diagram: 111, spray painting machine; 112, U-shaped bracket; 2, fixing part; 21, transmission assembly; 211, rectangular plate; 212, hollow shaft; 2112, bracket; 213, cylindrical rod; 214, transmission groove; 215, transmission block; 216, anti-slip fixing plate; 217, spring; 22, fixing assembly; 221, limiting slide groove; 222, slider; 223, fixing clamp; 224, transmission rod one; 225, hinge rod; 3, power unit; 31. Support assembly; 311, trough plate one; 312, support rod; 32, power assembly; 321, bidirectional threaded rod; 322, motor; 323, telescopic protective sleeve; 4, flipping part; 41, rotating assembly; 411, rotating shaft; 412, support plate; 413, cylindrical support rod; 414, trough plate two; 415, transmission rod two; 42, drive assembly; 421, trapezoidal slide; 422, drive plate; 423, electric telescopic rod; 424, drive groove. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-7As shown, the present invention is a PCB board processing spraying device with positioning fixture, including a spraying machine 111 and a U-shaped bracket 112 fixedly connected to the spraying machine 111, and further including: a fixing part 2, two fixing parts 2 are provided, and the two fixing parts 2 are arranged in a mirror image on the spraying machine 111; a power part 3 is provided on the U-shaped bracket 112; and a flipping part 4 is installed on the U-shaped bracket 112.

[0032] The fixing part 2 includes a transmission assembly 21, which is mounted on the U-shaped bracket 112; and a fixing assembly 22, which is mounted on the transmission assembly 21. The transmission assembly 21 includes a rectangular plate 211 disposed within the U-shaped bracket 112, through which a hollow shaft 212 passes, and the hollow shaft 212 is rotatably connected to the rectangular plate 211. A bracket 211 is fixedly connected to the outer wall of the rectangular plate 211. 2. A cylindrical rod 213 slides through the bracket 2112. The cylindrical rod 213 is located inside the hollow shaft 212. A transmission groove 214 is formed on the outer wall of the cylindrical rod 213. A transmission block 215 is set in the transmission groove 214. The transmission block 215 is fixedly connected to the inner wall of the hollow shaft 212. An elastic element is provided on the cylindrical rod 213. The bracket 2112 is C-shaped. The elastic element includes an anti-slip fixing plate 2 fixedly connected to the side of the cylindrical rod 213 away from the bracket 2112. 16. A spring 217 is sleeved on the outer wall of the cylindrical rod 213. The side of the spring 217 near the bracket 2112 is fixedly connected to the bracket 2112, and the side of the spring 217 away from the bracket 2112 is fixedly connected to the anti-slip fixing plate 216. The fixing component 22 includes two limiting slide grooves 221 opened on the rectangular plate 211. A slider 222 is slidably connected in each of the two limiting slide grooves 221. A fixing clip 223 is fixedly connected to each of the two sliders 222. A transmission rod 224 is fixedly connected to the outer wall of the hollow shaft 212. Two hinge rods 225 are hinged on the transmission rod 224. The two hinge rods 225 are respectively hinged to the two sliders 222. The two hinge rods 225 are arranged in a circumferential array. By setting the fixing part 2, in conjunction with the power part 3, the PCB board is constrained from multiple directions such as left, right, front and back, effectively preventing the PCB board from shifting or shaking during the spraying process, significantly improving the fixing stability and improving production efficiency.

[0033] The power unit 3 includes a support assembly 31, which is disposed within a U-shaped bracket 112; and a power assembly 32, which is disposed on the support assembly 31. The support assembly 31 includes two channel plates 311 disposed within the U-shaped bracket 112, and a support rod 312 is fixedly connected between the two channel plates 311. The support rod 312 passes through two rectangular plates 211 and is slidably connected to the two rectangular plates 211. The two channel plates 311 are located on opposite sides of the two rectangular plates 211. The power assembly 32 includes a bidirectional threaded rod 321 rotatably connected between the two channel plates 311, passing through the two rectangular plates 211, and threadedly connected to the two rectangular plates 211. The left side of 321 is penetrated by a channel plate 311 located on the left side. A motor 322 is fixedly connected to the left side of the channel plate 311. The output shaft of the motor 322 is fixedly connected to the bidirectional threaded rod 321 through a coupling. Several telescopic protective sleeves 323 are sleeved on the outer wall of the bidirectional threaded rod 321. There are three telescopic protective sleeves 323. The two sides of the telescopic protective sleeve 323 located in the middle are fixedly connected to two rectangular plates 211 respectively. The two telescopic protective sleeves 323 located on the left and right sides are fixedly connected to two channel plates 311 and two rectangular plates 211 respectively. By setting up the power unit 3, the parallel cooperation between the support rod 312 and the bidirectional threaded rod 321 provides stable support for the transmission, improves the overall stability of the mechanism, and improves the clamping efficiency.

[0034] The flipping part 4 includes a rotating assembly 41, which is mounted on the U-shaped bracket 112; and a driving assembly 42, which is located on the left side of the U-shaped bracket 112. The rotating assembly 41 includes rotating shafts 411 that pass through the left and right sides of the U-shaped bracket 112 respectively. Both rotating shafts 411 are rotatably connected to the U-shaped bracket 112. Support plates 412 are fixedly connected to the sides of the two rotating shafts 411 that are close to each other. Two cylindrical support rods 413 are fixedly connected between the two support plates 412. The two cylindrical support rods 413 pass through two slotted plates 311. The two slotted plates 311 are slidably connected to the two cylindrical support rods 413. A transmission component is provided on the rotating shaft 411 located on the left side. The transmission component includes a slotted plate 2 fixedly connected to the outer wall of the rotating shaft 411 located on the left side. 414, A transmission rod 415 is fixedly connected to the left side of the groove plate 414, and the transmission rod 415 is located in the drive groove 424; the transmission rod 415 is in contact with the drive groove 424. The drive assembly 42 includes a trapezoidal slide 421 opened on the left side of the U-shaped bracket 112. A drive plate 422 is slidably connected to the trapezoidal slide 421. An electric telescopic rod 423 is fixedly connected to the left side of the U-shaped bracket 112. The output end of the electric telescopic rod 423 is fixedly connected to the drive plate 422. A drive groove 424 is opened on the right side of the drive plate 422. The drive groove 424 consists of two straight grooves and one inclined groove. By setting the flipping part 4, the PCB board can be flipped 180 degrees without manual disassembly and assembly, which greatly improves the efficiency of double-sided spraying. It can be connected with the spraying process to improve the automation level of the device.

[0035] It should be noted that the spraying machine 111, motor 322 and electric telescopic rod 423 in this application can all be automatically controlled by using a program set in the control panel and inputting relevant parameters as needed. This control method can be achieved using existing technologies, such as PLC.

[0036] In use, the PCB board is placed between two anti-slip fixing plates 216 and between four fixing clips 223. The motor 322 is started, and the motor 322 drives the bidirectional threaded rod 321 to rotate. Under the action of the bidirectional threaded rod 321 and the support rod 312 in parallel cooperation, the bidirectional threaded rod 321 causes the two rectangular plates 211 to move closer to each other. At this time, the three telescopic protective sleeves 323 deform as the two rectangular plates 211 move and protect the threads of the motor 322. At this time, the two rectangular plates 211 respectively drive the two cylindrical rods 213 to move closer to each other through the corresponding brackets 2112. The two cylindrical rods 213 respectively drive the two anti-slip fixing plates 216 to move closer to the left and right sides of the PCB board.

[0037] When the two anti-slip fixing plates 216 contact the PCB board, they continue to drive the two rectangular plates 211 to move closer to each other. Because the anti-slip fixing plates 216 are in contact with the PCB board, the rectangular plates 211 drive the hollow shaft 212 to move on the cylindrical rod 213. During this process, the rectangular plates 211 drive the bracket 2112 to compress the spring 217, causing the spring 217 to deform and generate elastic force. Under the action of the transmission groove 214 and the transmission block 215 on the cylindrical rod 213, the hollow shaft 212 is pushed to rotate. The hollow shaft 212 drives the transmission rod 22. 4. Rotation: Since both hinge rods 225 are hinged to the transmission rod 224 and the two hinge rods 225 are respectively hinged to the two sliders 222, when the transmission rod 224 rotates, the two hinge rods 225 drive the two sliders 222 to slide in the corresponding limiting grooves 221 and move closer to each other. At this time, the two sliders 222 drive the corresponding fixing clamps 223 to move closer to each other, thereby fixing the front and rear sides of the PCB board and cooperating with the two anti-slip fixing plates 216 to further improve the stability of fixing the PCB board.

[0038] Then, the spraying machine 111 was started to spray the PCB board;

[0039] When it is necessary to adjust the surface of the PCB board to be sprayed, the electric telescopic rod 423 is activated. The electric telescopic rod 423 pushes the drive plate 422 to slide in the trapezoidal slide groove 421. Under the action of the shape of the drive groove 424, the drive groove 424 drives the channel plate 414 to perform circumferential motion by pushing the transmission rod 415. Since the channel plate 414 is fixedly connected to the rotating shaft 411 on the left, the channel plate 414 drives the rotating shaft 411 on the left to rotate and rotate 180 degrees. The rotating shaft 411 on the left drives the rotating shaft 411 on the right to rotate through the two cylindrical support rods 413 between the two support plates 412. At this time, the two cylindrical support rods 413 drive the fixed PCB board to flip through the support rod 312 and the bidirectional threaded rod 321 between the two channel plates 311, and then spray the other side of the PCB board.

[0040] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A PCB board processing spraying device with positioning fixture, comprising a spraying machine (111) and a U-shaped bracket (112) fixedly connected to the spraying machine (111), characterized in that, Also includes: Fixing part (2), two fixing parts (2) are provided, and the two fixing parts (2) are arranged in a mirror image on the spraying machine (111); The power unit (3) is mounted on the U-shaped bracket (112); A flipping part (4) is mounted on a U-shaped bracket (112); The fixing part (2) includes a transmission assembly (21), which is mounted on the U-shaped bracket (112); and A fixing component (22) is disposed on the transmission component (21); The transmission assembly (21) includes a rectangular plate (211) disposed in a U-shaped bracket (112), a hollow shaft (212) passing through the rectangular plate (211), the hollow shaft (212) being rotatably connected to the rectangular plate (211), the bracket (2112) being fixedly connected to the outer wall of the rectangular plate (211), a cylindrical rod (213) slidingly passing through the bracket (2112), the cylindrical rod (213) being located inside the hollow shaft (212), a transmission groove (214) being provided on the outer wall of the cylindrical rod (213), a transmission block (215) being disposed in the transmission groove (214), the transmission block (215) being fixedly connected to the inner wall of the hollow shaft (212), and an elastic element being disposed on the cylindrical rod (213). Among them, the bracket (2112) is C-shaped.

2. The PCB board processing spraying device with positioning fixture according to claim 1, characterized in that, The power unit (3) includes a support assembly (31) disposed within a U-shaped bracket (112); and A power assembly (32) is mounted on a support assembly (31).

3. The PCB board processing spraying device with positioning fixture according to claim 1, characterized in that, The flipping part (4) includes a rotating assembly (41) mounted on a U-shaped bracket (112); and A drive assembly (42) is disposed on the left side of the U-shaped bracket (112).

4. The PCB board processing spraying device with positioning fixture according to claim 1, characterized in that, The fixing component (22) includes two limiting slide grooves (221) opened on the rectangular plate (211), and a slider (222) is slidably connected in each of the two limiting slide grooves (221). A fixing clip (223) is fixedly connected to each of the two sliders (222). A transmission rod (224) is fixedly connected to the outer wall of the hollow shaft (212). Two hinge rods (225) are hinged on the transmission rod (224). The two hinge rods (225) are respectively hinged to the two sliders (222). Among them, the two hinge rods (225) are arranged in a circular array.

5. A PCB board processing spraying device with positioning fixture according to claim 2, characterized in that, The support assembly (31) includes two channel plates (311) disposed in the U-shaped bracket (112), and a support rod (312) is fixedly connected between the two channel plates (311). The support rod (312) passes through the two rectangular plates (211) and is slidably connected to the two rectangular plates (211). Among them, the two trough-shaped plates (311) are located on the opposite sides of the two rectangular plates (211).

6. A PCB board processing spraying device with positioning fixture according to claim 2, characterized in that, The power assembly (32) includes a bidirectional threaded rod (321) rotatably connected between two slotted plates (311). The bidirectional threaded rod (321) passes through two rectangular plates (211) and is threadedly connected to the two rectangular plates (211). The left side of the bidirectional threaded rod (321) passes through the slotted plate (311) located on the left side. A motor (322) is fixedly connected to the left side of the slotted plate (311) located on the left side. The output shaft of the motor (322) is fixedly connected to the bidirectional threaded rod (321) through a coupling. Several telescopic protective sleeves (323) are sleeved on the outer wall of the bidirectional threaded rod (321). Among them, there are three telescopic protective sleeves (323). The telescopic protective sleeve (323) in the middle is fixedly connected to two rectangular plates (211) on both sides, and the two telescopic protective sleeves (323) on the left and right sides are fixedly connected to two grooved plates (311) and two rectangular plates (211) on both sides.

7. A PCB board processing spraying device with positioning fixture according to claim 3, characterized in that, The rotating assembly (41) includes a rotating shaft (411) passing through the left and right sides of the U-shaped bracket (112) respectively. Both rotating shafts (411) are rotatably connected to the U-shaped bracket (112). Support plates (412) are fixedly connected to the sides of the two rotating shafts (411) that are close to each other. Two cylindrical support rods (413) are fixedly connected between the two support plates (412). The two cylindrical support rods (413) pass through two slotted plates (311). The two slotted plates (311) are slidably connected to the two cylindrical support rods (413). A transmission component is provided on the rotating shaft (411) located on the left side.

8. A PCB board processing spraying device with positioning fixture according to claim 3, characterized in that, The drive assembly (42) includes a trapezoidal slide groove (421) on the left side of the U-shaped bracket (112), a drive plate (422) is slidably connected to the trapezoidal slide groove (421), an electric telescopic rod (423) is fixedly connected to the left side of the U-shaped bracket (112), the output end of the electric telescopic rod (423) is fixedly connected to the drive plate (422), and a drive groove (424) is provided on the right side of the drive plate (422). The drive slot (424) consists of two straight slots and one inclined slot.

9. A spraying device for PCB board processing with positioning fixtures according to claim 1, characterized in that, The elastic element includes an anti-slip fixing plate (216) fixedly connected to the side of the cylindrical rod (213) away from the bracket (2112). A spring (217) is sleeved on the outer wall of the cylindrical rod (213). The side of the spring (217) close to the bracket (2112) is fixedly connected to the bracket (2112), and the side of the spring (217) away from the bracket (2112) is fixedly connected to the anti-slip fixing plate (216).

10. A PCB board processing spraying device with positioning fixture according to claim 7, characterized in that, The transmission component includes a grooved plate two (414) fixedly connected to the outer wall of the rotating shaft (411) located on the left side, and a transmission rod two (415) fixedly connected to the left side of the grooved plate two (414), and the transmission rod two (415) is located in the drive groove (424). Among them, the transmission rod 2 (415) is in contact with the drive groove (424).

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