Processing equipment for PCB (Printed Circuit Board)

Abstract

The invention relates to the technical field of equipment for manufacturing printed circuits, and discloses PCB processing equipment which comprises a box body, an opening is formed in the side wall of the box body, and a door plate for shielding the opening is rotationally connected to the box body; the side wall of the box body is communicated with a plurality of drying pipes for introducing hot air; a fixing plate is arranged in the box body, and a plurality of placing grooves are formed in the side wall of the fixing plate in the length direction of the fixing plate; the movable plates are located on the two sides of the fixed plate, the driving mechanism is used for driving the two movable plates to vertically move in the box body at the same time, a sliding groove is formed in the inner wall of the box body, the movable plates are vertically and slidably connected with the sliding groove, and the moving directions of the two movable plates are opposite. According to the scheme, the problems that an existing device adopts a positioning mode for drying a plurality of PCBs, operation is inconvenient, and the working efficiency is low are mainly solved.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment for manufacturing printed circuits, and in particular to a processing equipment for PCBs. Background Art

[0002] PCBs, also known as printed circuit boards, are important electronic components that support and connect electronic components. During their preparation, PCBs require a varnish treatment. This varnish prevents solder from adhering to the copper where it's not needed, prevents oxidation, and extends the life of the board. It also prevents dust from settling on the board and causing leakage or short circuits. After varnishing, PCBs need to be dried. Traditionally, they've been placed outdoors on a rack to air dry, but this method is slow and inefficient.

[0003] To solve the above problems, Chinese patent publication number CN209376030U discloses a supporting device for drying PCB boards, comprising a rectangular frame with a partition fixed in the middle of the rectangular frame, multiple frames equidistantly arranged above the partition, multiple ventilation holes provided on the partition between the frames, a fixed plate fixed above the frame, one side of the fixed plate being movably connected to a splint above the frame, a movable block placed in the frame, a push rod provided on one side of the movable block, one end of the push rod passing through one side of the frame and extending out to be movably connected to a connecting rod, the other end of the connecting rod being movably connected to one side of the splint, a spring sleeved on the push rod between the movable block and the frame; this device can fix the PCB boards and prevent them from stacking, allowing hot air to pass through the ventilation holes to dry the PCB boards, thereby improving work efficiency.

[0004] The above device has the following problems during actual use: the push rod is driven to move to the left, the spring is stretched, and the push rod drives the clamping plate to rotate away from the fixed plate through the connecting rod, thereby increasing the distance between the clamping plate and the fixed plate, so that the PCB board can be placed between the clamping plate and the fixed plate; after the PCB board is placed between the clamping plate and the fixed plate, the push rod is released, and the push rod moves to the right under the action of the spring, and the push rod drives the clamping plate to rotate toward the fixed plate through the connecting rod, thereby reducing the distance between the clamping plate and the fixed plate, thereby clamping and positioning the PCB board using the clamping blocks on the clamping plate and the fixed plate; when multiple PCB boards need to be dried, the multiple PCB boards need to be clamped and positioned separately, which is very inconvenient to operate and has low work efficiency. Summary of the Invention

[0005] The present invention aims to provide a PCB processing device to solve the problems of inconvenient operation and low working efficiency of the positioning method adopted by the existing device for drying multiple PCB boards.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a PCB processing equipment, including a box body, an opening is provided on the side wall of the box body, and a door panel for covering the opening is rotatably connected to the box body; a plurality of drying tubes for introducing hot air are connected to the side wall of the box body; a fixed plate is provided in the box body, and a plurality of placement grooves are provided on the side wall of the fixed plate along the length direction of the fixed plate; it also includes movable plates located on both sides of the fixed plate and a driving mechanism for driving the two movable plates to move vertically simultaneously inside the box body, a slide groove is provided on the inner wall of the box body, the movable plate is vertically slidably connected to the slide groove, and the movement directions of the two movable plates are opposite.

[0007] Furthermore, a plurality of fixing mechanisms are provided on the movable plate along the length direction of the movable plate, the fixing mechanisms include a first clamping plate fixed to the side of the movable plate close to the fixed plate, and a through hole vertically opened on the movable plate; a movable mechanism is provided on both sides of the fixed plate in the box body, and the movable mechanism includes a plurality of movable parts arranged along the length direction of the movable plate, the movable part includes a second clamping plate, a wall groove opened on the inner wall of the box body, the second clamping plate passes through the through hole, and the second clamping plate can move vertically and laterally in the through hole, a wall block is slidably connected in the wall groove, a spring is provided between the wall block and the wall groove, and the wall block is fixed to the second clamping plate; it also includes a linkage mechanism that drives multiple second clamping plates on the movable plate to move laterally at the same time as the movable plate moves vertically.

[0008] Furthermore, the linkage mechanism includes several inclined blocks fixed to the movable plate and a clamping block fixed to the second clamping plate. The width of the inclined block gradually increases from the end of the inclined block close to the fixed plate to the end of the inclined block away from the fixed plate, and the end of the clamping block away from the second clamping plate abuts against the inclined block.

[0009] Furthermore, an arc-shaped surface is provided on one end of the pressing block away from the second clamping plate.

[0010] Furthermore, the driving mechanism includes a bidirectional screw and a driving portion for driving the bidirectional screw to rotate, and the two movable plates are respectively threadedly connected to both ends of the bidirectional screw.

[0011] Furthermore, a plurality of air holes are provided on the movable plate near the top of the box body along the length direction of the movable plate, and the air holes are located between the first clamping plate and the through hole. An air guide tube and an air bag are fixedly connected to both ends of the air holes on the movable plate, and the air guide tube and the air bag are both connected to the air holes; and an air introduction mechanism is also included for introducing gas into the air guide tube as the bidirectional screw rotates.

[0012] Furthermore, the air bleed mechanism includes a worm fixed with a bidirectional screw, a rotating shaft rotatably connected to the housing, a piston cylinder fixed to the housing, and a pipeline fixed to the housing. A worm gear and a cylindrical cam are coaxially connected to the rotating shaft, the worm gear is engaged with the worm, a curved groove is provided on the cylindrical cam, and an auxiliary block is slidably connected in the curved groove; an air inlet pipe and an air outlet pipe are connected to the piston cylinder, an end of the air inlet pipe away from the piston cylinder passes through the housing, an end of the air outlet pipe away from the piston cylinder is connected to the pipeline, and an end of the air guide pipe away from the air hole is connected to the pipeline; a piston block is slidably connected in the piston cylinder, and the piston block is fixed to the auxiliary block.

[0013] Furthermore, a first inclined plate is provided on the first clamping plate near the top of the box body, and a second inclined plate is provided on the second clamping plate near the top of the box body. The gap between the first inclined plate and the second inclined plate gradually decreases in the vertical direction from the fixed plate to the bottom of the box body; the airbag is located between the first clamping plate and the second clamping plate, and the airbag can pass through the gap between the first clamping plate and the second clamping plate after expansion.

[0014] Furthermore, an elastic layer is provided on the airbag.

[0015] The principles and advantages of this solution are: 1. This solution places multiple PCBs into multiple placement slots. The width of the placement slots is greater than the thickness of the PCBs, making it easier for workers to place them and reducing the difficulty of placement. In addition, the placement slots can pre-position the PCBs to prevent them from tipping over to the left or right.

[0016] 2. This solution uses a bidirectional screw to drive the two movable plates to move vertically and approach each other, so that the lower movable plate, the upper first inclined plate, and the upper second inclined plate respectively abut against the ends of the PCB. In other words, the lower movable plate, the upper first inclined plate, and the upper second inclined plate are used to clamp and position the PCB in the vertical direction. Moreover, after the vertical movement, the movable plates can act on multiple PCBs simultaneously, that is, they can simultaneously clamp and position multiple PCBs, which is simple to operate and improves work efficiency. After the multiple PCBs are positioned, hot air is introduced into the drying tube to achieve drying of the multiple PCBs.

[0017] 3. This solution adjusts the vertical distance between the two movable plates according to the height of the PCB board, which is suitable for positioning PCB boards of different heights and has strong applicability.

[0018] 4. In this solution, after the PCB board is placed in the placement slot, the PCB board is still located between the first clamping plate and the second clamping plate; during the vertical movement and approach of the two movable plates, the movable plate can drive the second clamping plate toward the first clamping plate through the clamping block, that is, the first clamping plate and the second clamping plate are used to clamp and position the PCB board in the horizontal direction, thereby enhancing the positioning effect of the PCB board.

[0019] 5. In this solution, the vertical position of the movable plate can be adjusted, so that the horizontal position of the second clamping plate can be adjusted, that is, the spacing between the first clamping plate and the second clamping plate can also be adjusted. This is suitable for positioning PCBs of different thicknesses and is highly practical. In addition, since the thickness of the PCB is smaller than the width of the placement slot, the PCB may be tilted. By bringing the first clamping plate and the second clamping plate closer together, the PCB can be corrected so that the PCB is in a vertical position.

[0020] 6. This solution can clamp and position multiple PCBs in the vertical and horizontal directions through the vertical movement of two movable plates, which improves the positioning effect and prevents the PCBs from shaking in the vertical and horizontal directions. In addition, each PCB is clamped and positioned by a first clamping plate and a second clamping plate on both sides of the upper and lower ends, which improves the stability of the PCB positioning.

[0021] 7. During the rotation of the double-thread screw in this solution, the bidirectional screw drives the piston block to reciprocate in the piston cylinder through the worm, worm gear, rotating shaft, cylindrical cam, curved groove, and auxiliary block, thereby allowing external air to enter the airbag through the air inlet pipe, air outlet pipe, pipeline, air guide pipe, and air hole, thereby inflating the airbag, causing the airbag to expand downward, so that the airbag is against the upper end of the PCB board, thereby enhancing the positioning effect of the PCB.

[0022] 8. In this solution, when the distance between the two movable plates is at the minimum value, that is, the two movable plates move vertically and approach to the extreme position, the upper first inclined plate and the upper second inclined plate cannot abut against the upper end of the PCB board, the lower movable plate abuts against the lower end of the PCB board, and the first clamping plate and the second clamping plate abut against both sides of the end of the PCB board. Then, the downwardly inflated airbag is used to pass through the gap between the first and second inclined plates and abut against the upper end of the PCB board, so that the two ends of the PCB board abut against the airbag and the lower movable plate respectively, that is, the PCB board is clamped and positioned in the vertical direction. Therefore, a new method for clamping and positioning PCB boards with smaller heights is added, thereby improving applicability.

[0023] 9. In this solution, the proximity of the first clamping plate and the second clamping plate can clamp the end of the PCB board, and also allows the first inclined plate and the second inclined plate to be close together, so that the gap between them is reduced. The gap between the first inclined plate and the second inclined plate can cause the inflated airbag to move downward a farther distance, so as to adapt to the clamping and positioning of PCB boards with smaller heights, thereby improving applicability.

[0024] 10. In this solution, an elastic layer is fixedly connected to the airbag, and the elastic layer is a rubber layer; the elastic layer can contact the upper ends of the first inclined plate, the second inclined plate and the PCB board; using the elastic layer instead of the airbag to directly contact the upper ends of the first inclined plate, the second inclined plate and the PCB board can, on the one hand, avoid damage to the airbag, and on the other hand, the elastic layer can be deformed, which can be more suitable for the shape of the PCB board and have a better positioning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural schematic diagram of an embodiment of a PCB processing device according to the present invention; Figure 2 for Figure 1 Rear view; Figure 3 for Figure 1 Main view of the interior of the middle box; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 1 Schematic diagram of the structure inside the middle box; Figure 6 for Figure 5 Enlarged view of point B in the middle. DETAILED DESCRIPTION

[0026] The following is further described in detail through specific implementation methods: The figure marks in the drawings of the specification include: box body 10, opening 11, door panel 12, drying tube 13, fixed plate 14, placement groove 15, movable plate 20, slide groove 21, bidirectional screw 22, motor 23, first clamping plate 30, through hole 31, second clamping plate 32, wall groove 33, wall block 34, spring 35, inclined block 40, tightening block 41, air guide tube 50, air bag 51, worm 60, rotating shaft 61, piston cylinder 62, pipe 63, air release pipe 631, worm gear 64, cylindrical cam 65, auxiliary block 66, air inlet pipe 67, air outlet pipe 68, piston block 69, first inclined plate 70, second inclined plate 71, elastic layer 72, PCB board 80.

[0027] Example Basically as attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 , Attachment Figure 6The figure shows a PCB processing device, comprising a housing 10 with an opening 11 formed in the front sidewall thereof. A circular shaft is rotatably connected to the housing 10, and a door panel 12 is sleeved on the shaft, which can cover the opening 11. The sidewalls of the housing 10 are connected to a plurality of drying ducts 13 for introducing hot air. The drying ducts 13 are arranged on the rear sidewalls of the housing 10, and the hot air is introduced into the interior of the housing 10 through the drying ducts 13 to dry the PCBs 80.

[0028] A fixing plate 14 is fixedly connected to the box body 10 , and four placement slots 15 are opened on the side wall of the fixing plate 14 along the length direction of the fixing plate 14 . The placement slots 15 are used to place the PCB board 80 , and the width of the placement slots 15 is greater than the thickness of the PCB board 80 .

[0029] The housing 10 further includes movable plates 20 positioned on either side of the fixed plate 14 and a drive mechanism for simultaneously moving the two movable plates 20 vertically within the housing 10. The movable plates 20 are of a length such that, upon movement, they simultaneously act on the PCB boards 80 within the four placement slots 15. Slide slots 21 are defined on the inner wall of the housing 10, namely, on both the upper and lower sides of the right side wall of the housing 10. The movable plates 20 are vertically slidably connected to the slide slots 21, and the two movable plates 20 move in opposite directions. The drive mechanism includes a bidirectional screw 22 and a drive unit for rotating the bidirectional screw 22. The two movable plates 20 are respectively threadedly connected to the ends of the bidirectional screw 22, which is rotationally connected to the fixed plate 14. The drive unit is a motor 23, which is fixedly mounted within the housing 10, and whose output shaft is coaxially connected to the bidirectional screw 22.

[0030] Four fixing mechanisms are provided on the movable plate 20 along the length direction of the movable plate 20, and the fixing mechanisms include a first clamping plate 30 fixed to the side of the movable plate 20 close to the fixed plate 14, and a through hole 31 vertically opened on the movable plate 20. In each fixing mechanism, the first clamping plate 30 is located on the left side of the through hole 31; a movable mechanism is provided on both sides of the fixed plate 14 in the box body 10, and the movable mechanism includes four movable parts arranged along the length direction of the movable plate 20, and the movable part includes a second clamping plate 32 and a wall groove 33 opened on the inner wall of the box body 10, the second clamping plate 32 passes through the through hole 31, and the second clamping plate 32 can move vertically and laterally in the through hole 31, and a wall block 34 is slidably connected to the wall groove 33, and a spring 35 is fixed between the wall block 34 and the wall groove 33, and the wall block 34 is fixed to the second clamping plate 32.

[0031] It also includes a linkage mechanism that drives the four second clamping plates 32 on the movable plate 20 to move horizontally at the same time as the movable plate 20 moves vertically. The linkage mechanism includes four inclined blocks 40 fixed to the movable plate 20 and a clamping block 41 fixed to the second clamping plate 32. The width of the inclined block 40 gradually increases from the end of the inclined block 40 close to the fixed plate 14 to the end of the inclined block 40 away from the fixed plate 14. The end of the clamping block 41 away from the second clamping plate 32 is abutted against the inclined block 40, and the end of the clamping block 41 away from the second clamping plate 32 is provided with an arc surface.

[0032] Four air holes are opened on the movable plate 20 near the top of the box body 10 along the length direction of the movable plate 20, that is, four air holes are opened on the upper movable plate 20 along the length direction of the movable plate 20, the air holes are located between the first clamping plate 30 and the through hole 31 in the horizontal direction, and an air guide tube 50 and an air bag 51 are fixedly connected at both ends of the air hole on the movable plate 20, that is, four air guide tubes 50 and four air bags 51 are provided on the upper movable plate 20, and the air guide tubes 50 and the air bags 51 are communicated with the air holes; it also includes an air bleed mechanism for introducing gas into the air guide tube 50 as the bidirectional screw 22 rotates, the air bleed mechanism includes a worm 60 fixed to the bidirectional screw 22, a rotating shaft 61 rotatably connected to the box body 10, a piston cylinder 62 fixed to the box body 10, and a pipe 63 fixed to the box body 10, a worm gear 64 and a cylindrical cam 65 are coaxially connected to the rotating shaft 61, and the worm 60 is provided on the bidirectional screw 22. Towards the top of the screw 22, the worm 60 is rotatably connected to the inner wall of the box body 10, the worm gear 64 is meshed with the worm 60, and a curved groove is opened on the cylindrical cam 65, in which an auxiliary block 66 is slidably connected; the piston cylinder 62 is connected to an air inlet pipe 67 and an air outlet pipe 68, the end of the air inlet pipe 67 away from the piston cylinder 62 passes through the box body 10, the end of the air outlet pipe 68 away from the piston cylinder 62 is connected to the pipe 63, and the end of the air guide pipe 50 away from the air hole is connected to the pipe 63, and the air guide pipe 50 is a bellows, which can achieve length expansion and contraction; a first one-way valve (not shown in the figure) is installed on the air inlet pipe 67 for gas to enter the piston cylinder 62 from the outside in one direction, and a second one-way valve (not shown in the figure) is installed on the air outlet pipe 68 for gas to enter the pipe 63 from the piston cylinder 62 in one direction; a piston block 69 is slidably connected in the piston cylinder 62, and the piston block 69 is fixed to the auxiliary block 66. The pipe 63 is connected to an air release pipe 631 that passes through the rear side wall of the box body 10 , and a sealing block (not shown in the figure) is threadedly connected to the air release pipe 631 .

[0033] The air hole is located between the first clamping plate 30 and the through hole 31 in the horizontal direction, and the second clamping plate 32 is located in the through hole 31; the upper first clamping plate 30 is fixedly connected to the side of the air hole with the first inclined plate 70, and the upper second clamping plate 32 is fixedly connected to the side of the air hole with the second inclined plate 71. The first inclined plate 70 and the second inclined plate 71 are located between the first clamping plate 30 and the second clamping plate 32, and the gap between the first inclined plate 70 and the second inclined plate 71 gradually decreases from the fixed plate 14 to the vertical direction of the bottom of the box body 10, that is, the gap between the first inclined plate 70 and the second inclined plate 71 gradually decreases from top to bottom; the airbag 51 is located between the first clamping plate 30 and the second clamping plate 32, and the airbag 51 can pass through the gap between the first clamping plate 30 and the second clamping plate 32 after expansion.

[0034] The specific implementation process is as follows: During use, four PCB boards 80 are placed in the four placement slots 15 respectively, so that the PCB boards 80 are located between the two movable plates 20 in the vertical direction and between the first clamping plate 30 and the second clamping plate 32 in the horizontal direction, and the lower end of the PCB board 80 is against the top of the lower movable plate 20; because the width of the placement slots 15 is greater than the thickness of the PCB board 80, it is easier for the staff to insert it, reducing the difficulty of placement; and the placement slots 15 can pre-position the PCB board 80 to prevent the PCB board 80 from tipping over to the left or right.

[0035] The motor 23 is started, and the output shaft of the motor 23 drives the bidirectional screw 22 to rotate, causing the two movable plates 20 to move vertically and approach each other. When the lower movable plate 20, the upper first inclined plate 70, and the upper second inclined plate 71 respectively abut against the ends of the PCB board 80, the motor 23 is turned off, thereby stopping the two movable plates 20. That is, the lower movable plate 20, the upper first inclined plate 70, and the upper second inclined plate 71 are used to clamp and position the PCB board 80 in the vertical direction. Moreover, after the vertical movement, the movable plate 20 can act on four PCB boards 80 simultaneously, that is, it can simultaneously clamp and position four PCB boards 80, which is simple to operate and improves work efficiency. In addition, this method can also adjust the vertical distance between the two movable plates 20 according to the height of the PCB board 80, which is suitable for positioning PCB boards 80 of different heights and has strong applicability.

[0036] During the vertical movement of the movable plate 20, the second clamping plate 32 moves vertically relative to the through hole 31; during the vertical movement of the movable plate 20, the movable plate 20 drives the inclined surface block 40 to move synchronously, so that the second clamping plate 32 drives the clamping block 41 to move vertically relative to the inclined surface block 40, that is, the upper clamping block 41 moves upward relative to the upper inclined surface block 40, that is, the lower clamping block 41 moves downward relative to the lower inclined surface block 40. According to the width change of the inclined surface block 40, the inclined surface of the inclined surface block 40 is used to squeeze the clamping block 41 to drive the second clamping plate 32 to move horizontally in the through hole 31, so that the second clamping plate 32 is close to the first clamping plate 30. At the same time, the second clamping plate 32 drives the wall block 34 to move horizontally in the wall groove 33, and the spring 35 is stretched. When the movable plate 20 stops, the first clamping plate 30 and The second clamping plates 32 respectively abut against both sides of the end of the PCB board 80, that is, the first clamping plate 30 and the second clamping plate 32 are used to clamp and position the PCB board 80 in the horizontal direction, thereby enhancing the positioning effect of the PCB board 80; in addition, the position of the movable plate 20 in the vertical direction can be adjusted, so that the position of the second clamping plate 32 in the horizontal direction can be adjusted, that is, the spacing between the first clamping plate 30 and the second clamping plate 32 can also be adjusted, which is suitable for positioning PCB boards 80 of different thicknesses and has strong practicality; in addition, since the thickness of the PCB board 80 is smaller than the width of the placement groove 15, the PCB board 80 may be tilted, and by bringing the first clamping plate 30 and the second clamping plate 32 closer together, the PCB board 80 can be corrected so that the PCB board 80 is in a vertical state.

[0037] Therefore, through the vertical movement of the two movable plates 20, the four PCB boards 80 can be clamped and positioned in the vertical and horizontal directions, with a better positioning effect, preventing the PCB boards 80 from shaking in the vertical and horizontal directions; and, each PCB board 80 has a first clamping plate 30 and a second clamping plate 32 on both sides of the upper end and the lower end for clamping and positioning, thereby improving the stability of the positioning of the PCB board 80.

[0038] During the rotation of the bidirectional screw 22, the two movable plates 20 realize vertical movement, so the bidirectional screw 22 will continue to rotate for multiple turns; during the rotation of the bidirectional screw 22, the bidirectional screw 22 drives the worm 60 to rotate, the worm 60 engages with the worm wheel 64 to drive the rotating shaft 61 to rotate, and the rotating shaft 61 drives the cylindrical cam 65 to rotate, and the cylindrical cam 65 drives the piston block 69 to reciprocate in the piston cylinder 62 through the curved groove and the auxiliary block 66, so that the outside air can enter the air bag 51 through the air inlet pipe 67, the air outlet pipe 68, the pipe 63, the air guide pipe 50, and the air hole, so as to realize the inflation of the air bag 51, so that the air bag 51 expands downward, so that the air bag 51 is against the upper end of the PCB board 80, thereby enhancing the positioning effect of the PCB; and when the distance between the two movable plates 20 is When the space between the first and second inclined plates 70 and 71 is the minimum, that is, the two movable plates 20 move vertically and approach the extreme positions, at this time, the upper first inclined plate 70 and the upper second inclined plate 71 cannot abut against the upper end of the PCB board 80, the lower movable plate 20 abuts against the lower end of the PCB board 80, and the first clamping plate 30 and the second clamping plate 32 abut against both sides of the end of the PCB board 80. Then, the downwardly inflated airbag 51 is used to pass through the gap between the first and second inclined plates 70 and 71 and abut against the upper end of the PCB board 80, so that the two ends of the PCB board 80 abut against the airbag 51 and the lower movable plate 20 respectively, that is, the PCB board 80 is clamped and positioned in the vertical direction. Therefore, a new method for clamping and positioning a PCB board 80 with a smaller height is added, thereby improving applicability.

[0039] The proximity of the first clamping plate 30 and the second clamping plate 32 can clamp the end of the PCB board 80, and at the same time, the first inclined plate 70 and the second inclined plate 71 are brought closer together, so that the gap between them is reduced. The gap between the first inclined plate 70 and the second inclined plate 71 can be used to cause the inflated airbag 51 to move downward a greater distance, so as to adapt to the clamping and positioning of the PCB board 80 with a smaller height, thereby improving applicability.

[0040] In this embodiment, an elastic layer 72 is fixed to the airbag 51, and the elastic layer 72 is a rubber layer; the elastic layer 72 can contact the upper ends of the first inclined plate 70, the second inclined plate 71 and the PCB board 80; using the elastic layer 72 instead of the airbag 51 to directly contact the upper ends of the first inclined plate 70, the second inclined plate 71 and the PCB board 80 can, on the one hand, prevent the airbag 51 from being damaged, and on the other hand, the elastic layer 72 can be deformed and can be more suitable for the shape of the PCB board 80, thereby improving the positioning effect.

[0041] The above is only an embodiment of the present invention, and the common knowledge such as the specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the description can be used to interpret the content of the claims.

Claims

1. A PCB processing device, comprising a housing, characterized in that: The side wall of the box body is provided with an opening, and the box body is rotatably connected to a door panel for covering the opening; the side wall of the box body is connected to several drying ducts for introducing hot air; a fixed plate is provided in the box body, and a plurality of placement slots are provided on the side wall of the fixed plate along the length direction of the fixed plate; it also includes a movable plate located on both sides of the fixed plate and a driving mechanism for driving the two movable plates to move vertically at the same time inside the box body; the inner wall of the box body is provided with a slide groove, the movable plate is vertically slidably connected to the slide groove, and the movement directions of the two movable plates are opposite; the driving mechanism includes a bidirectional screw and a driving part for driving the bidirectional screw to rotate, and the two movable plates are respectively threadedly connected to the two ends of the bidirectional screw; several fixing mechanisms are provided on the movable plate along the length direction of the movable plate, the fixing mechanism includes a first clamping plate fixed to one side of the movable plate close to the fixed plate, and a through hole vertically opened on the movable plate; a movable mechanism is provided on both sides of the fixed plate in the box body. The movable mechanism includes several movable parts arranged along the length direction of the movable plate, and the movable part includes a second clamping plate, a The cam is secured to the bottom of the second support frame and is adapted to engage the second support member when the cam is engaged with the first and second support members.

2. The PCB processing equipment according to claim 1, characterized in that: The linkage mechanism includes several inclined blocks fixed to the movable plate and a clamping block fixed to the second clamping plate. The width of the inclined block gradually increases from the end of the inclined block close to the fixed plate to the end of the inclined block away from the fixed plate, and the end of the clamping block away from the second clamping plate abuts against the inclined block.

3. The PCB processing equipment according to claim 2, characterized in that: An end of the pressing block away from the second clamping plate is provided with an arc surface.

4. The PCB processing equipment according to claim 3, characterized in that: The air bleed mechanism includes a worm fixed with a bidirectional screw, a rotating shaft rotatably connected to the housing, a piston cylinder fixed to the housing, and a pipeline fixed to the housing. A worm gear and a cylindrical cam are coaxially connected to the rotating shaft, the worm gear is engaged with the worm, a curved groove is provided on the cylindrical cam, and an auxiliary block is slidably connected in the curved groove; an air inlet pipe and an air outlet pipe are connected to the piston cylinder, an end of the air inlet pipe away from the piston cylinder passes through the housing, an end of the air outlet pipe away from the piston cylinder is connected to the pipeline, and an end of the air guide pipe away from the air hole is connected to the pipeline; a piston block is slidably connected in the piston cylinder, and the piston block is fixed to the auxiliary block.

5. The PCB processing equipment according to claim 4, characterized in that: An elastic layer is provided on the airbag.

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