A calibration structure for circuit board processing

Abstract

The present invention discloses a correction structure for circuit board processing, belonging to the field of circuit board correction. A correction structure for circuit board processing includes a processing box. A double-shaft motor is fixedly connected to the top of the processing box. The bottom end of the output shaft of the double-shaft motor is fixedly connected with a worm inside the processing box. A shaft rod is rotatably connected inside the processing box through a rotating shaft to the left of the worm. A worm gear is fixedly connected to the outer side wall of the shaft rod. The worm gear is meshed with the worm. Sector gears are fixedly connected to the outer side wall of the shaft rod in front of and behind the worm gear. Through the multi-group of pressing strips provided by the device, and the provided placing plate one and placing plate two, multiple circuit boards can be placed in layers and flattened and corrected simultaneously. As the two pressing strips descend along with the pressing plate one and the pressing plate two, the circuit boards will be gradually separated by extrusion, realizing the function of flattening and correcting the circuit boards, and the processing efficiency is faster.

Description

Technical Field

[0001] The present invention relates to the field of circuit board correction, and particularly to a correction structure for circuit board processing. Background Art

[0002] Circuit boards include printed circuit boards, aluminum substrates, high-frequency boards, thick copper boards, impedance boards, ultra-thin circuit boards, ultra-thin printed circuit boards, etc. Circuit boards miniaturize and visualize circuits, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layouts. Circuit boards can be called printed wiring boards or printed circuit boards. The weight of the circuit board itself and the operations during the processing will cause the board to sink and deform, so it is necessary to level and correct the circuit board;

[0003] Patent Publication No. (CN220798656U) discloses a correction device for the production of automatic printed circuit boards in the technical field of circuit board processing. The correction device includes a heating box. On both sides inside the heating box, there are side supports with adjustable heights. Inside the heating box, there is also a movable clamping and adjusting assembly. The clamping and adjusting assembly includes a liftable clamping frame. Above the clamping frame, there is an integrally formed first side frame and a slidably adjustable second side frame. Above the clamping and adjusting assembly, there is a lifting frame. At the lower end of the lifting frame, there are a first side pressing frame and a second side pressing frame that are slidably matched. This correction device can be adjusted according to the size of the circuit board, and then fixed according to the height of multiple stacked circuit boards. Then, when the circuit board is leveled and corrected, the side pressing frame can also be automatically adjusted according to the size of the circuit board. The leveling and correction effect is good, and the overall operation is simple with a high degree of automation;

[0004] In the above technology, only a single circuit board can be leveled and corrected, with low correction efficiency and only single-time correction, resulting in a poor correction effect. Improvements are needed. For this reason, we propose a correction structure for circuit board processing. Summary of the Invention

[0005] Object of the Invention: The object of the present invention is to provide a device that can correct multiple circuit boards simultaneously; another object of the present invention is to provide a device that can level and correct a single circuit board multiple times.

[0006] Technical Solution: A correction structure for circuit board processing, including a processing box. At the top of the processing box, a double-shaft motor is fixedly connected. The bottom end of the output shaft of the double-shaft motor is located inside the processing box and is fixedly connected with a worm. Inside the processing box, to the left of the worm, a shaft rod is rotatably connected through a rotating shaft. On the outer sidewall of the shaft rod, a worm gear is fixedly connected. The worm gear is meshed with the worm. On the outer sidewall of the shaft rod, sector gears are fixedly connected both in front of and behind the worm gear;

[0007] Above the interior of the processing box, a first pressing plate and a second pressing plate are slidably connected in sequence from top to bottom. Inside the processing box, a first placement plate and a second placement plate are fixedly connected respectively below the first pressing plate and below the second pressing plate. A connecting frame is symmetrically and fixedly connected between the first pressing plate and the second pressing plate;

[0008] On the lower surfaces of both the first pressing plate and the second pressing plate, a plurality of cross plates are provided. At both ends of each cross plate, a sliding plate is fixedly connected. The outer side wall of the sliding plate is slidably connected with a pressing strip. On the upper surface of the pressing strip, a first rotating connecting piece is symmetrically and fixedly connected front and back. The outer side wall of the first rotating connecting piece is rotatably connected with a connecting rod through a rotating shaft. The top end of the connecting rod is rotatably connected with a second rotating connecting piece through a rotating shaft. The tops of a plurality of the second rotating connecting pieces are respectively fixedly connected with the lower surfaces of the first pressing plate and the second pressing plate. On the upper surface of the first pressing plate, on the left side of the two sector gears, a rack is fixedly connected. The top of the rack penetrates above the processing box and is slidably connected with the processing box.

[0009] Furthermore, a plurality of first springs are fixedly connected between the processing box and the first pressing plate, and a plurality of second springs are fixedly connected between the sliding plate and the pressing strip.

[0010] Furthermore, on the upper surface of the pressing strip, a guiding fixed block is symmetrically and fixedly connected front and back. On the upper surface of the pressing strip, on the right side of the guiding fixed block, a wedge-shaped extrusion block is fixedly connected. A longitudinal guiding rod is fixedly connected between two opposite guiding fixed blocks front and back. A moving block is slidably connected to the upper surface of the longitudinal guiding rod. A first rotating connecting piece is fixedly connected to the upper surface of the moving block. The right side of the first rotating connecting piece is rotatably connected with a traction rod through a rotating shaft. The top end of the traction rod is rotatably connected with a second rotating connecting piece through a rotating shaft. The tops of two opposite second rotating connecting pieces are jointly fixedly connected with a transverse sliding block. A U-shaped transverse guiding rod is slidably connected inside the transverse sliding block. The tops of a plurality of the U-shaped transverse guiding rods are respectively fixedly connected with the lower surfaces of the first pressing plate and the second pressing plate. A knocking mounting piece is fixedly connected to the right side of the moving block. A knocking rod is slidably connected inside the knocking mounting piece. A pushed piece is fixedly connected to the top of the knocking rod. A reset spring is sleeved on the outer side wall of the knocking rod. The two ends of the reset spring are respectively fixedly connected with the opposite sides of the pushed piece and the knocking mounting piece. A knocking ball is fixedly connected to the bottom end of the knocking rod.

[0011] Furthermore, an intelligent controller is fixedly connected to the right side of the processing box, and an electric heating plate is fixedly connected to the lower surface of the pressing strip.

[0012] Furthermore, the upper surface of the processing box is located on the outer side wall of the dual-axis motor and is fixedly connected to a box body, the top end of the output shaft of the dual-axis motor is fixedly connected to a fan blade, the upper surface of the box body is located above the fan blade and a filter is removably installed, and both sides of the box body are fixedly connected to the upper left side and the lower right side of the processing box with exhaust pipes.

[0013] Furthermore, the front surface of the processing box is rotatably connected to a box door via a hinge, and two filter screens are embedded on the front surface of the box door.

[0014] Furthermore, the upper surface of the placement plate 1 is provided with through openings on the outer sides of the two connection frames.

[0015] Furthermore, a retraction box is fixedly connected to the rear surface of the processing box, a retraction plate is slidably connected to the interior of the retraction box, an electric telescopic rod is fixedly connected between the retraction plate and the retraction box, and a pushing column is symmetrically fixedly connected to the front surface of the retraction plate. The front ends of the two pushing columns opposite to each other on the left and right penetrate into the interior of the processing box and are fixedly connected to a rear splint together. The two rear splints are respectively located above the placement plate one and the placement plate two.

[0016] Furthermore, a threaded block is fixedly connected to the front of the upper surface of the placement plate one and the front of the upper surface of the placement plate two, the internal thread of the threaded block is connected to a threaded rod, the front end of the threaded rod is fixedly connected to a knob, the rear end of the threaded rod is rotatably connected to a front clamping plate via a rotating shaft, and the bottoms of the two front clamping plates are respectively in contact with the upper surface of the placement plate one and the upper surface of the placement plate two.

[0017] Beneficial effects:

[0018] The device can place multiple circuit boards in layers and perform flattening and correction at the same time by setting multiple groups of pressure strips, and setting the placement plate 1 and the placement plate 2. The two pressure strips will gradually separate the squeezed circuit boards as the pressure plate 1 and the pressure plate 2 descend, thus realizing the function of flattening and correcting the circuit boards, and the processing efficiency is faster.

[0019] The dual-axis motor rotates to drive the fan-shaped gear to move the rack intermittently, so that the first and second pressing plates drive multiple groups of pressing strips to move up and down repeatedly, achieving multiple leveling corrections with better correction effects;

[0020] The fan blades are controlled by a dual-axis motor to extract the hot air inside the processing box, thus avoiding the problem of inconvenience in removing the circuit board due to excessive heat in the processing box.

[0021] Place the circuit board between the front clamping plate and the rear clamping plate. Under the push of the electric telescopic rod, it is temperature-clamped. At the same time, you can hold the knob by hand to control the rotation of the threaded rod inside the threaded block, and then control the forward or backward movement of the front clamping plate, so as to facilitate adjusting the distance between the front clamping plate and the rear clamping plate for circuit boards of different sizes, achieving the effect of facilitating clamping.

[0022] As the pressing strip descends and contacts the circuit board, after the two pressing strips gradually separate, the front and rear moving blocks will slide away from each other along the longitudinal guide rods respectively. At this time, the receiving push piece will be blocked by multiple wedge-shaped extrusion blocks and move up and down repeatedly, so that the knocking ball can repeatedly knock the pressing strip, thereby assisting the pressing strip to flatten the circuit board. Brief Description of the Drawings

[0023] Figure 1 is the overall structural schematic diagram of the present invention;

[0024] Figure 2 is the internal structural schematic diagram of the present invention;

[0025] Figure 3 is the internal structural schematic diagram of the box body of the present invention;

[0026] Figure 4 is the top view structural schematic diagram of the placement board one of the present invention;

[0027] Figure 5 is the top view structural schematic diagram of the cross-section of the shrinkage box and the rear clamping plate of the present invention;

[0028] Figure 6 is the connection structural schematic diagram of the front clamping plate and the threaded block of the present invention;

[0029] Figure 7 is the Figure 2 enlarged structural schematic diagram of part A of the present invention;

[0030] Figure 8 is the Figure 2 enlarged structural schematic diagram of part B of the present invention;

[0031] Figure 9 is the connection structural schematic diagram of the guiding fixing block, longitudinal guide rod, traction rod, U-shaped guide rod and transverse slider of the present invention.

[0032] In the figure: 1, processing box; 2, double-shaft motor; 3, worm; 4, shaft rod; 5, worm gear; 6, sector gear; 7, pressing plate one; 8, pressing plate two; 9, placing plate one; 10, placing plate two; 11, connecting frame; 12, cross plate; 13, sliding plate; 14, pressing strip; 15, rotating connecting piece one; 16, connecting rod; 17, rotating connecting piece two; 18, rack; 19, spring one; 20, spring two; 21, intelligent controller; 22, electric heating plate; 23, box body; 24, fan blade; 25, filter screen one; 26, exhaust pipe; 27, box door; 28, filter screen two; 29, through port; 30, shrinkage box; 31, shrinkage plate; 32, pushing column; 33, rear clamping plate; 34, threaded block; 35, threaded rod; 36, knob; 37, front clamping plate; 38, electric telescopic rod; 39, guiding and fixing block; 40, wedge-shaped extrusion block; 41, longitudinal guide rod; 42, moving block; 43, rotating connecting piece one; 44, traction rod; 45, rotating connecting piece two; 46, transverse sliding block; 47, U-shaped transverse guide rod; 48, knocking mounting piece; 49, knocking rod; 50, pushed piece; 51, reset spring; 52, knocking ball. Detailed implementation method

[0033] To make the technical solution of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.

[0034] Embodiment 1

[0035] As Figure 1 and Figure 7 shown, a calibration structure for circuit board processing is provided. A calibration structure for circuit board processing includes a processing box 1. A double-shaft motor 2 is fixedly connected to the top of the processing box 1. The bottom end of the output shaft of the double-shaft motor 2 is fixedly connected with a worm 3 inside the processing box 1. A shaft rod 4 is rotatably connected inside the processing box 1 through a rotating shaft to the left of the worm 3. A worm gear 5 is fixedly connected to the outer side wall of the shaft rod 4. The worm gear 5 is meshed with the worm 3. Sector gears 6 are fixedly connected to the outer side wall of the shaft rod 4 in front of and behind the worm gear 5;

[0036] Start the double-shaft motor 2, which can control the rotation of the worm 3. Then, through the meshing connection between the worm 3 and the worm gear 5, the sector gears 6 on the outer side wall of the shaft rod 4 are driven to rotate together. Thus, the teeth on the sector gears 6 can be meshed with the rack 18 to move the pressing plate one 7 and the pressing plate two 8 downward. When the teeth on the sector gears 6 are away from the rack 18, under the pulling of the spring one 19, the pressing plate one 7 and the pressing plate two 8 are reset and rise;

[0037] As Figure 2 and Figure 4As shown in the figure, a first pressing plate 7 and a second pressing plate 8 are slidably connected in sequence from top to bottom above the interior of the processing box 1. A first placement plate 9 and a second placement plate 10 are fixedly connected below the first pressing plate 7 and below the second pressing plate 8 respectively inside the processing box 1. Connecting frames 11 are symmetrically and fixedly connected between the first pressing plate 7 and the second pressing plate 8. A plurality of first springs 19 are fixedly connected between the processing box 1 and the first pressing plate 7. Through openings 29 are provided on the upper surface of the first placement plate 9 on the outer sides of the two connecting frames 11. On the upper surface of the first pressing plate 7, racks 18 are fixedly connected to the left of the two sector gears 6. The tops of the racks 18 penetrate above the processing box 1 and are slidably connected to the processing box 1;

[0038] The upper surfaces of the first placement plate 9 and the second placement plate 10 are used to place a plurality of circuit boards. During the rotation of the sector gears 6, the first pressing plate 7 can be intermittently pressed to descend by meshing with the racks 18. When the first pressing plate 7 is pressed and descends, it will drive the second pressing plate 8 to descend together. When the pressing on the first pressing plate 7 is released, under the pulling of the first springs 19, the first pressing plate 7 and the second pressing plate 8 reset;

[0039] As Figure 8 shown in the figure, a plurality of cross plates 12 are provided on the lower surfaces of the first pressing plate 7 and the second pressing plate 8. Sliding plates 13 are fixedly connected to both ends of the cross plates 12. Pressure strips 14 are slidably connected to the outer side walls of the sliding plates 13. Rotating connectors one 15 are symmetrically and fixedly connected to the upper surface of the pressure strips 14 front and back. The outer side walls of the rotating connectors one 15 are rotationally connected to connecting rods 16 through rotating shafts. The tops of the connecting rods 16 are rotationally connected to rotating connectors two 17 through rotating shafts. The tops of the plurality of rotating connectors two 17 are respectively fixedly connected to the lower surfaces of the first pressing plate 7 and the second pressing plate 8. A plurality of second springs 20 are fixedly connected between the sliding plates 13 and the pressure strips 14. An intelligent controller 21 is fixedly connected to the right side of the processing box 1. An electric heating plate 22 is fixedly connected to the lower surface of the pressure strip 14;

[0040] When the first pressing plate 7 and the second pressing plate 8 descend, they will drive a plurality of pressure strips 14 to descend together. Two adjacent pressure strips 14 form a group for leveling and correcting one circuit board. When the adjacent pressure strips 14 descend and contact the circuit board, since the plurality of pressure strips 14 are movably connected to the first pressing plate 7 and the second pressing plate 8 through the rotating connection connectors one 15, rotating connectors two 17 and connecting rods 16, when the bottom of the pressure strip 14 is blocked and the upper part continues to be pressed by the descending of the first pressing plate 7 or the second pressing plate 8, the two adjacent pressure strips 14 will move away from each other, so as to realize the leveling and correction of the circuit board. The pressure strip 14 heats the surface of the circuit board through the electric heating plate 22 at the bottom. Under the heating condition, the stress of the circuit board gradually relaxes, which is more convenient for the pressure strip 14 to level by extrusion. When the pressure strip 14 rises with the first pressing plate 7 and the second pressing plate 8, under the pulling of the second springs 20 and under the limitation of the cross plates 12 and the sliding plates 13, the adjacent pressure strips will slide relative to each other and reset, and fit together again, facilitating the next pressing.

[0041] As Figure 1 and Figure 3 shown, a box body 23 is fixedly connected to the outer side wall of a biaxial motor 2 on the upper surface of a processing box 1. The top end of an output shaft of the biaxial motor 2 is fixedly connected with a fan blade 24. A first filter screen 25 is detachably installed above the fan blade 24 on the upper surface of the box body 23. Exhaust pipes 26 are fixedly communicated with both sides of the box body 23 and the upper left side and the lower right side of the processing box 1 respectively. The front surface of the processing box 1 is rotatably connected with a box door 27 through a hinge, and two second filter screens 28 are embedded in the front surface of the box door 27;

[0042] While the biaxial motor 2 rotates to control the pressing strip 14 to descend and level, the fan blade 24 will rotate together, so as to extract the hot air inside the processing box 1 through the exhaust pipes 26, avoiding the problem that the temperature inside the processing box 1 is too high when taking out the circuit board after the subsequent processing is completed.

[0043] As Figure 5 and Figure 6 shown, a contraction box 30 is fixedly connected to the rear surface of the processing box 1. A contraction plate 31 is slidably connected inside the contraction box 30. An electric telescopic rod 38 is fixedly connected between the contraction plate 31 and the contraction box 30. Push columns 32 are symmetrically and fixedly connected to the front surface of the contraction plate 31. The front ends of two opposite push columns 32 penetrate into the interior of the processing box 1 and are jointly fixedly connected with a rear clamping plate 33. The two rear clamping plates 33 are respectively located above a first placing plate 9 and a second placing plate 10. Threaded blocks 34 are fixedly connected to the front of the upper surface of the first placing plate 9 and the front of the upper surface of the second placing plate 10. A threaded rod 35 is threadedly connected inside the threaded block 34. A knob 36 is fixedly connected to the front end of the threaded rod 35. The rear end of the threaded rod 35 is rotatably connected with a front clamping plate 37 through a rotating shaft. The bottoms of the two front clamping plates 37 are respectively in contact with the upper surface of the first placing plate 9 and the upper surface of the second placing plate 10;

[0044] When placing the circuit board, place the circuit board between the front clamping plate 37 and the rear clamping plate 33. Under the push of the electric telescopic rod 38, the circuit board is clamped. At the same time, the knob 36 can be held by hand to control the threaded rod 35 to rotate inside the threaded block 34, and then the front clamping plate 37 can be controlled to move forward or backward, so as to adjust the distance between the front clamping plate 37 and the rear clamping plate 33 according to different sizes of the circuit board, achieving the effect of facilitating clamping.

[0045] As Figure 8 and Figure 9As shown, guide fixing blocks 39 are symmetrically and fixedly connected to the front and rear upper surfaces of the pressing strip 14. A wedge-shaped extrusion block 40 is fixedly connected to the upper surface of the pressing strip 14 to the right of the guide fixing blocks 39. A longitudinal guide rod 41 is fixedly connected between two relatively front and rear guide fixing blocks 39. A moving block 42 is slidably connected to the upper surface of the longitudinal guide rod 41. A first rotating connecting piece 43 is fixedly connected to the upper surface of the moving block 42. The right side of the first rotating connecting piece 43 is rotationally connected to a traction rod 44 through a rotating shaft. The top of the traction rod 44 is rotationally connected to a second rotating connecting piece 45 through a rotating shaft. A transverse sliding block 46 is fixedly connected to the tops of two relatively front and rear second rotating connecting pieces 45. A U-shaped transverse guide rod 47 is slidably connected inside the transverse sliding block 46. The tops of multiple U-shaped transverse guide rods 47 are respectively fixedly connected to the lower surfaces of the first pressing plate 7 and the second pressing plate 8. A knocking mounting piece 48 is fixedly connected to the right side of the moving block 42. A knocking rod 49 is slidably connected inside the knocking mounting piece 48. A pushed piece 50 is fixedly connected to the top of the knocking rod 49. A return spring 51 is sleeved on the outer sidewall of the knocking rod 49. The two ends of the return spring 51 are respectively fixedly connected to the opposite sides of the pushed piece 50 and the knocking mounting piece 48. A knocking ball 52 is fixedly connected to the bottom end of the knocking rod 49;

[0046] As the pressing strip 14 descends and contacts the circuit board, after the two pressing strips 14 gradually separate, the relatively front and rear moving blocks 42 will slide away from each other along the longitudinal guide rods 41 respectively. At this time, the pushed piece 50 will be blocked by multiple wedge-shaped extrusion blocks 40. Since the pushed piece 50 is movably connected to the knocking mounting piece 48 through the arranged return spring 51 and the knocking rod 49, it will rise after being blocked by the wedge-shaped extrusion blocks 40. When the pushed piece 50 moves away from the wedge-shaped extrusion blocks 40, it will re-descend and reset under the pulling of the return spring 51. Thus, under the blocking of multiple wedge-shaped extrusion blocks 40, as the relatively front and rear moving blocks slide away from each other, it can move up and down repeatedly, enabling the knocking ball 52 to repeatedly knock the pressing strip 14, thereby achieving the effect of assisting the pressing strip 14 in leveling the circuit board.

[0047] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A correction structure for circuit board processing, comprising a processing box (1), characterized in that: A dual-axis motor (2) is fixedly connected to the top of the processing box (1). The bottom end of the output shaft of the dual-axis motor (2) is fixedly connected to a worm (3) inside the processing box (1). A shaft rod (4) is rotatably connected to the left side of the worm (3) inside the processing box (1) through a rotating shaft. A worm gear (5) is fixedly connected to the outer side wall of the shaft rod (4). The worm gear (5) is meshed with the worm (3). Sector gears (6) are fixedly connected to the outer side wall of the shaft rod (4) in front of and behind the worm gear (5). A first pressing plate (7) and a second pressing plate (8) are slidably connected to the upper part of the inside of the processing box (1) from top to bottom. A first placing plate (9) and a second placing plate (10) are fixedly connected to the lower part of the inside of the processing box (1) below the first pressing plate (7) and below the second pressing plate (8) respectively. A connecting frame (11) is symmetrically and fixedly connected between the first pressing plate (7) and the second pressing plate (8). A plurality of cross plates (12) are provided on the lower surfaces of the first pressing plate (7) and the second pressing plate (8). Both ends of each cross plate (12) are fixedly connected with sliding plates (13). The outer side walls of the sliding plates (13) are slidably connected with pressing strips (14). Rotating connectors one (15) are symmetrically and fixedly connected to the front and rear of the upper surface of each pressing strip (14). The outer side walls of the rotating connectors one (15) are rotatably connected with connecting rods (16) through rotating shafts. The top ends of the connecting rods (16) are rotatably connected with rotating connectors two (17) through rotating shafts. The tops of the plurality of rotating connectors two (17) are respectively fixedly connected to the lower surfaces of the first pressing plate (7) and the second pressing plate (8). On the upper surface of the first pressing plate (7) to the left of the two sector gears (6), racks (18) are fixedly connected. The tops of the racks (18) penetrate above the processing box (1) and are slidably connected with the processing box (1). Guide fixing blocks (39) are symmetrically and fixedly connected to the front and rear of the upper surface of each pressing strip (14). A wedge-shaped extrusion block (40) is fixedly connected to the upper surface of the pressing strip (14) to the right of the guide fixing blocks (39). A longitudinal guide rod (41) is fixedly connected between the two relatively front and rear guide fixing blocks (39). A moving block (42) is slidably connected to the upper surface of the longitudinal guide rod (41). A rotating connection piece one (43) is fixedly connected to the upper surface of the moving block (42). The right side of the rotating connection piece one (43) is rotatably connected with a traction rod (44) through a rotating shaft. The top end of the traction rod (44) is rotatably connected with a rotating connection piece two (45) through a rotating shaft. The tops of the two relatively front and rear rotating connection pieces two (45) are commonly fixedly connected with a transverse slider (46). A U-shaped transverse guide rod (47) is slidably connected inside the transverse slider (46). The tops of the plurality of U-shaped transverse guide rods (47) are respectively fixedly connected to the lower surfaces of the first pressing plate (7) and the second pressing plate (8). A knocking mounting piece (48) is fixedly connected to the right side of the moving block (42). A knocking rod (49) is slidably connected inside the knocking mounting piece (48). A pushed piece (50) is fixedly connected to the top of the knocking rod (49). A return spring (51) is sleeved on the outer side wall of the knocking rod (49). The two ends of the return spring (51) are respectively fixedly connected to the opposite sides of the pushed piece (50) and the knocking mounting piece (48). A knocking ball (52) is fixedly connected to the bottom end of the knocking rod (49).

2. The calibration structure for circuit board processing according to claim 1, characterized in that: A plurality of first springs (19) are fixedly connected between the processing box (1) and the first pressing plate (7). A plurality of second springs (20) are fixedly connected between the sliding plates (13) and the pressing strips (14).

3. The calibration structure for circuit board processing according to claim 1, wherein: An intelligent controller (21) is fixedly connected to the right side of the processing box (1). An electric heating plate (22) is fixedly connected to the lower surface of the pressing strip (14).

4. A correction structure for circuit board processing according to claim 1, characterized in that: A box body (23) is fixedly connected to the outer side wall of the biaxial motor (2) on the upper surface of the processing box (1). The top end of the output shaft of the biaxial motor (2) is fixedly connected with a fan blade (24). A first filter screen (25) is detachably installed above the fan blade (24) on the upper surface of the box body (23). Exhaust pipes (26) are fixedly communicated with both sides of the box body (23) and the upper left side and the lower right side of the processing box (1).

5. A correction structure for circuit board processing according to claim 1, characterized in that: A box door (27) is rotatably connected to the front surface of the processing box (1) through a hinge. Two second filter screens (28) are embedded in the front surface of the box door (27).

6. The calibration structure for circuit board processing according to claim 1, characterized in that: Penetrating openings (29) are formed in the upper surface of the first placing plate (9) on the outer sides of the two connecting frames (11).

7. A correction structure for circuit board processing according to claim 1, characterized in that: A contraction box (30) is fixedly connected to the rear surface of the processing box (1). A contraction plate (31) is slidably connected to the inside of the contraction box (30). An electric telescopic rod (38) is fixedly connected between the contraction plate (31) and the contraction box (30). Push columns (32) are symmetrically and fixedly connected to the front surface of the contraction plate (31). The front ends of the two left and right opposite push columns (32) penetrate into the inside of the processing box (1) and are commonly fixedly connected with a rear clamping plate (33). The two rear clamping plates (33) are respectively located above the first placing plate (9) and the second placing plate (10).

8. A correction structure for circuit board processing according to claim 1, characterized in that: Threaded blocks (34) are fixedly connected to the front sides of the upper surfaces of the first placing plate (9) and the second placing plate (10). A threaded rod (35) is threadedly connected to the inside of the threaded block (34). A knob (36) is fixedly connected to the front end of the threaded rod (35). The rear end of the threaded rod (35) is rotatably connected with a front clamping plate (37) through a rotating shaft. The bottoms of the two front clamping plates (37) are respectively in contact with the upper surfaces of the first placing plate (9) and the second placing plate (10).

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