A drilling device for circuit board production

Abstract

The present invention relates to the technical field of circuit boards, and specifically to a drilling device for circuit board production, comprising a fixed plate and a workbench, wherein the four corners of the top of the fixed plate are fixedly connected to pillars, the bottom end of the workbench is fixedly connected to the tops of the four pillars, a first convex groove is arranged on the right side of the top of the workbench, a first convex block is slidingly arranged inside the first convex groove, a first screw is threadedly connected to the inside of the first convex block, the front end and the rear end of the first screw are rotatably connected to the front end and the rear end of the first convex groove respectively, the front end of the first screw extends to the front side of the workbench, and a first motor is fixedly connected to the right side of the front end of the workbench; it is convenient to drill holes at different positions on the circuit board, improves the accuracy of drilling position positioning, can fix circuit boards of different sizes, improves the stability of their fixation, ensures the cleanliness of the workbench surface, and improves the effect of removing debris.

Description

Technical Field

[0001] The invention relates to the technical field of circuit boards, in particular to a drilling device for producing circuit boards. Background Art

[0002] As we all know, with the advancement of technology, circuit boards have made circuits miniaturized and intuitive, playing an important role in the mass production of fixed circuits and optimizing the layout of electrical appliances. In the production process of circuit boards, the quality of circuit board drilling is one of the main factors affecting the quality of circuit boards.

[0003] The invention patent with Chinese patent number CN201910713880.X discloses a multifunctional drilling device for circuit board production, including a base, a high-pressure fan, a mounting shaft, a support rod and a third slide rail. A support rod is installed on one side above the base, and a fixing buckle is installed at the middle end of the support rod. When in use, the debris generated by drilling can be cleaned up in time, making cleaning more convenient and avoiding the debris from affecting the drilling efficiency.

[0004] The above-mentioned prior art solutions still have the following defects: the debris generated when drilling holes in the circuit board will fall downward due to gravity and fall onto the turntable, which makes it inconvenient to clean the turntable. In addition, it is not convenient to adjust the position of the drill bit and to drill holes in different positions of the circuit board, which reduces its practicality. Therefore, a drilling device for circuit board production is needed to solve the above problems. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a drilling device for circuit board production to solve the problems raised in the background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a drilling device for circuit board production, comprising a fixed plate and a workbench, the four corners of the top end of the fixed plate are fixedly connected to pillars, the bottom end of the workbench is fixedly connected to the top ends of the four pillars, a first convex groove is arranged on the right side of the top end of the workbench, a first convex block is slidingly arranged inside the first convex groove, a first screw is threadedly connected to the inside of the first convex block, the front end and the rear end of the first screw are rotatably connected to the front end and the rear end of the first convex groove respectively, the front end of the first screw extends to the front side of the workbench, and the right side of the front end of the workbench is fixedly connected to the first screw. A motor, the output end of the first motor is fixedly connected to the front end of the first screw, the top of the first convex block is fixedly connected to the first support plate, the bottom end of the first support plate is slidably matched with the top of the workbench, the left end of the first support plate is provided with a second convex groove, the second convex block is slidably provided inside the second convex groove, the second convex block is internally threadedly connected to the second screw, the bottom end and the top end of the second screw are respectively rotatably connected to the bottom end and the top end of the second convex groove, the top end of the second screw extends to the upper side of the first support plate, the top of the first support plate is fixedly connected to the second motor, the output end of the second motor is fixedly connected to the top end of the second screw, the second convex block The left end of the workbench is fixedly connected with a connecting plate, the right end of the connecting plate is slidably matched with the left end of the first support plate, the left end of the connecting plate is fixedly connected with an electric cylinder, the left end of the electric cylinder is fixedly connected with a drilling rig, the output end of the drilling rig is fixedly connected with a universal joint, and a drill bit is installed at the left end of the universal joint. Two second support plates are fixedly connected to the left side of the top of the workbench, and the upper side of the middle of the two second support plates is rotatably connected with a mounting plate through a rotating shaft. A third convex groove is provided at the top of the mounting plate, and a bidirectional screw is provided inside the third convex groove. The left and right ends of the bidirectional screw are rotatably connected to the left and right ends of the third convex groove respectively, and the left and right ends of the bidirectional screw The right side is threadedly connected with a third convex block, and the two third convex blocks are slidably matched with the third convex groove. The top ends of the two third convex blocks are fixedly connected with clamping blocks, and the opposite ends of the two clamping blocks are provided with clamping grooves, and a clamping plate is slidably provided inside the clamping grooves. The top ends of the two clamping blocks are threadedly connected with a third screw, and the bottom end of the third screw extends to the inside of the clamping groove and is rotatably connected to the top of the clamping plate. The top end of the third screw is fixedly connected with the first handle, and the right side and middle position of the inside of the two second support plates are provided with fixing mechanisms. The top of the workbench is provided with a dust suction groove running longitudinally, and the bottom end of the dust suction groove is provided with a dust suction mechanism.

[0009] Preferably, the fixing mechanism includes a slide groove, a slider, a compression spring, a clamping column and a pull rod, the inner wall of the slide groove slidingly cooperates with the outer wall of the slider, one end of the compression spring close to the mounting plate contacts with the end of the slider away from the mounting plate, one end of the compression spring away from the mounting plate contacts with the end of the slide groove close to the mounting plate, one end of the clamping column away from the mounting plate is fixedly connected with the end of the slider close to the mounting plate, one end of the clamping column close to the mounting plate extends to the middle of the two second support plates, and clamping grooves are provided on the right side of the front end and the right side of the rear end of the mounting plate at the corresponding side positions of the clamping column, the clamping grooves are adapted to the clamping columns, and one end of the pull rod close to the mounting plate is fixedly connected with the end of the slider away from the mounting plate.

[0010] Furthermore, one end of the pull rod away from the mounting plate extends to the outside of the second support plate and is fixedly connected to the pull plate.

[0011] Furthermore, the dust suction mechanism includes a dust hood, a dust box, a dust bag and a fan. The top of the dust hood is fixedly connected to the bottom end of the workbench, the bottom end of the dust box is fixedly connected to the top of the fixed plate, the top of the dust box is connected to the bottom end of the dust hood through a first dust suction pipe, the bag opening of the dust bag is installed at the bottom end of the first dust suction pipe, the bottom end of the fan is fixedly connected to the top end of the fixed plate, and the output end of the fan is connected to the interior of the dust box through a second dust suction pipe.

[0012] Based on the above solution, the front end of the dust collecting box is fixedly connected with a sealing plate by screws.

[0013] Further on the basis of the above solution, the left end of the bidirectional screw extends to the left side of the mounting plate and is fixedly connected to a second handle.

[0014] As a further scheme of the present invention, it also includes a base plate, wherein the four corners of the top end of the base plate are rotatably connected with screw tubes, the interior of each screw tube is threadedly connected with an adjusting screw, the top ends of the four adjusting screws are fixedly connected to the bottom end of the fixed plate, the outside of each screw tube is sleeved with a first gear, the middle position of the top end of the base plate is fixedly connected with a third motor, the output end of the third motor is fixedly connected with a second gear, and the second gear is transmission connected to the four first gears through a chain.

[0015] Preferably, support blocks are fixedly connected to the four corners of the bottom end of the bottom plate.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides a drilling device for circuit board production, which has the following beneficial effects:

[0018] 1. The drilling device for producing circuit boards drives the first screw to rotate through the first motor, and the rotation of the first screw causes the first convex block and the first support plate to slide forward and backward, so as to adjust the front and rear positions of the drill and the drill bit; the second motor drives the second screw to rotate, and the rotation of the second screw causes the second convex block and the connecting plate to move downward, so as to adjust the upper and lower positions of the drill and the drill bit; the electric cylinder pushes the drill and the drill bit to move left and right, so as to facilitate drilling at different positions on the circuit board and improve the accuracy of drilling position positioning.

[0019] 2. The drilling device for producing circuit boards can adjust the distance between the two clamping blocks by rotating the second handle to rotate the bidirectional screw, and can tighten and fix the circuit board by rotating the first handle to fix the circuit board, so that circuit boards of different sizes can be fixed, and the stability of the fixation is improved.

[0020] 3. The drilling device for the production of circuit boards rotates the mounting plate to make the circuit board vertical and drill holes, so that the debris generated during drilling falls downward, and the debris is sucked into the dust box by the dust suction mechanism, and the debris is collected by the dust bag, thereby ensuring the cleanliness of the workbench surface and improving the effect of removing debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a front structural schematic diagram of the present invention;

[0023] Figure 3 It is a schematic diagram of a three-dimensional structure of the working table, the second supporting plate, the first supporting plate and other structures connected in the present invention;

[0024] Figure 4 It is a front cross-sectional structural schematic diagram of the dust collecting box of the present invention;

[0025] Figure 5 It is a schematic diagram of a top cross-sectional structure of the second support plate located at the front side connected to the mounting plate of the present invention;

[0026] Figure 6 For the present invention Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0027] In the figure: 1, fixed plate; 2, workbench; 3, pillar; 4, first convex block; 5, first screw; 6, first motor; 7, first support plate; 8, second convex block; 9, second screw; 10, second motor; 11, connecting plate; 12, electric cylinder; 13, drilling machine; 14, universal joint; 15, drill bit; 16, second support plate; 17, mounting plate; 18, bidirectional screw; 19, third convex block; 20, clamping block; 21, clamping plate; 22, third screw; 23, dust suction Groove; 24, slide groove; 25, slider; 26, compression spring; 27, clamping column; 28, pull rod; 29, pull plate; 30, dust hood; 31, dust box; 32, dust bag; 33, fan; 34, first dust pipe; 35, second dust pipe; 36, sealing plate; 37, second handle; 38, bottom plate; 39, screw; 40, adjusting screw; 41, first gear; 42, third motor; 43, second gear; 44, chain; 45, support block; 46, first handle. DETAILED DESCRIPTION

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

[0029] Example 1

[0030] See also Figure 1-6A drilling device for circuit board production comprises a fixed plate 1 and a workbench 2, the four corners of the top of the fixed plate 1 are fixedly connected with pillars 3, the bottom end of the workbench 2 is fixedly connected with the tops of the four pillars 3, a first convex groove is arranged on the right side of the top of the workbench 2, a first convex block 4 is slidably arranged inside the first convex groove, a first screw rod 5 is threadedly connected to the inside of the first convex block 4, the front end and rear end of the first screw rod 5 are rotatably connected to the front end and rear end of the first convex groove respectively, the front end of the first screw rod 5 extends to the front side of the workbench 2, a first motor 6 is fixedly connected to the right side of the front end of the workbench 2, the output end of the first motor 6 is fixedly connected to the front end of the first screw 5, and the top of the first convex block 4 is fixedly connected with a first support plate 7 The bottom end of the first support plate 7 is slidably matched with the top end of the workbench 2, a second convex groove is provided at the left end of the first support plate 7, a second convex block 8 is slidably provided inside the second convex groove, a second screw rod 9 is internally threadedly connected to the second convex block 8, the bottom end and the top end of the second screw rod 9 are rotatably connected to the bottom end and the top end of the second convex groove respectively, the top end of the second screw rod 9 extends to the upper side of the first support plate 7, a second motor 10 is fixedly connected to the top end of the first support plate 7, the output end of the second motor 10 is fixedly connected to the top end of the second screw rod 9, a connecting plate 11 is fixedly connected to the left end of the second convex block 8, the right end of the connecting plate 11 is slidably matched with the left end of the first support plate 7, the left end of the connecting plate 11 is fixedly connected to the electric cylinder 12, and the left end of the electric cylinder 12 is fixed A drilling rig 13 is connected, and a universal joint 14 is fixedly connected to the output end of the drilling rig 13. A drill bit 15 is installed at the left end of the universal joint 14. Two second support plates 16 are fixedly connected to the left side of the top of the workbench 2. The upper side of the middle of the two second support plates 16 is rotatably connected to a mounting plate 17 through a rotating shaft. A third convex groove is provided at the top of the mounting plate 17. A bidirectional screw 18 is provided inside the third convex groove. The left and right ends of the bidirectional screw 18 are rotatably connected to the left and right ends of the third convex groove respectively. The left end of the bidirectional screw 18 extends to the left side of the mounting plate 17 and is fixedly connected to a second handle 37. The bidirectional screw 18 is rotated by rotating the second handle 37 to adjust the distance between the two clamping blocks 20, so that circuit boards of different sizes can be fixed. The left and right sides of the bidirectional screw 18 are both threadedly connected with a third convex block 19, and the two third convex blocks 19 are slidably matched with the third convex grooves. The tops of the two third convex blocks 19 are fixedly connected with clamping blocks 20, and the opposite ends of the two clamping blocks 20 are provided with clamping grooves, and a clamping plate 21 is slidably provided inside the clamping grooves. The tops of the two clamping blocks 20 are both threadedly connected with a third screw 22, and the bottom end of the third screw 22 extends to the inside of the clamping groove and is rotatably connected to the top of the clamping plate 21. The top of the third screw 22 is fixedly connected with a first turning handle 46, and the right sides and middle positions of the insides of the two second support plates 16 are provided with fixing mechanisms. The top of the workbench 2 is provided with a longitudinally penetrating dust suction groove 23, and the bottom end of the dust suction groove 23 is provided with a dust suction mechanism.

[0031] It should also be noted that the fixing mechanism includes a slide groove 24, a slider 25, a compression spring 26, a clamping column 27 and a pull rod 28. The inner side wall of the slide groove 24 slides with the outer side wall of the slider 25, and the end of the compression spring 26 close to the mounting plate 17 contacts the end of the slider 25 away from the mounting plate 17. The end of the compression spring 26 away from the mounting plate 17 contacts the end of the slide groove 24 close to the mounting plate 17. The end of the clamping column 27 away from the mounting plate 17 is fixedly connected to the end of the slider 25 close to the mounting plate 17. The end of the clamping column 27 close to the mounting plate 17 extends to the middle of the two second support plates 16. The front right side and the rear right side of the mounting plate 17 are both provided with clamping grooves at the side positions corresponding to the clamping column 27. The clamping grooves are adapted to the clamping column 27. The end of the pull rod 28 close to the mounting plate 17 is fixedly connected to the end of the slider 25 away from the mounting plate 17. The end of the pull rod 28 away from the mounting plate 17 extends to the outer side of the second support plate 16 and is fixedly connected with a pull plate 29 The mounting plate 17 is fixed by clamping the clamping column 27 in the clamping groove to improve the stability of the circuit board during drilling. The dust collection mechanism includes a dust hood 30, a dust box 31, a dust bag 32 and a fan 33. The top of the dust hood 30 is fixedly connected to the bottom end of the workbench 2, the bottom end of the dust box 31 is fixedly connected to the top of the fixed plate 1, the top of the dust box 31 is connected to the bottom end of the dust hood 30 through a first dust suction pipe 34, and the bag opening of the dust bag 32 is installed at the first dust suction pipe 34. The bottom end of the fan 33 is fixedly connected to the top of the fixed plate 1, and the output end of the fan 33 is connected to the inside of the dust box 31 through the second dust suction pipe 35. The fan 33 sucks the debris generated during drilling into the inside of the dust box 31, and the debris is collected by the dust bag 32. The front end of the dust box 31 is fixedly connected with a sealing plate 36 by screws. The sealing plate 36 facilitates the removal of the dust bag 32 and the processing of the collected debris inside the dust bag 32.

[0032] In this embodiment, the models of the first motor 6 and the second motor 10 are both YVF2-63M1-4. The first motor 6 and the second motor 10 are both well-known equipment purchased directly on the market by technicians in this field. Here we only use them and do not make any structural and functional improvements to them. We will not go into details here. The first motor 6 and the second motor 10 are both provided with a control switch matching them. The installation position of the control switch is selected according to actual use requirements to facilitate the operator to operate and control. The first motor 6 and the second motor 10 are both forward and reverse motors. For the forward and reverse use of the first motor 6 and the second motor 10, according to the patent disclosed in Patent No. CN109889124A, the forward and reverse operation of the first motor 6 and the second motor 10 is a well-known technology for technicians in this field, and the technology is very mature and can be realized.

[0033] The working principle of this embodiment is as follows: the first motor 6 drives the first screw 5 to rotate, and the first screw 5 rotates to make the first convex block 4 and the first support plate 7 slide forward and backward, and the front and rear positions of the drill 13 and the drill bit 15 are adjusted. The second motor 10 drives the second screw 9 to rotate, and the second screw 9 rotates to make the second convex block 8 and the connecting plate 11 move downward, and the upper and lower positions of the drill 13 and the drill bit 15 are adjusted. The electric cylinder 12 pushes the drill 13 and the drill bit 15 to move left and right, so as to facilitate drilling holes at different positions on the circuit board. The accuracy of drilling position positioning is improved. The bidirectional screw 18 is rotated by turning the second handle 37 to adjust the distance between the two clamping blocks 20, and the clamping plate 21 is tightened and fixed to the circuit board by turning the first handle 46, so that circuit boards of different sizes can be fixed, and the stability of their fixation is improved. The circuit board is made vertical and drilled by rotating the mounting plate 17, so that the debris generated during drilling falls downward, and the debris is sucked into the dust box 31 by the dust suction mechanism, so as to ensure the cleanliness of the surface of the workbench 2 and improve the effect of removing debris.

[0034] Example 2

[0035] See also Figure 1-6 , a drilling device for circuit board production, further comprising a bottom plate 38, the top four corners of the bottom plate 38 are rotatably connected with a screw tube 39, the interior of each screw tube 39 is threadedly connected with an adjusting screw 40, the tops of the four adjusting screws 40 are fixedly connected to the bottom end of the fixed plate 1, the outside of each screw tube 39 is sleeved with a first gear 41, the middle position of the top of the bottom plate 38 is fixedly connected with a third motor 42, the model of the third motor 42 is YVF2-63M1-4, the third motor 42 is a well-known device purchased directly on the market by a technician in this field, here we just use it, and do not make any improvements to its structure and function, we will not go into details here, and the third motor The machine 42 is provided with a control switch matched therewith. The installation position of the control switch is selected according to actual use requirements to facilitate the operator to operate and control. The third motor 42 is a forward and reverse motor. For the forward and reverse use of the third motor 42, according to the patent disclosed with patent number CN109889124A, the forward and reverse operation of the third motor 42 is a well-known technology for those skilled in the art. The technology is very mature and can achieve that the output end of the third motor 42 is fixedly connected with a second gear 43, and the second gear 43 is transmission-connected to the four first gears 41 through a chain 44. The four corners of the bottom end of the bottom plate 38 are fixedly connected with support blocks 45, and the bottom plate 38 is supported by the support blocks 45.

[0036] The difference between this embodiment and the first embodiment is that a base plate 38 , four spiral tubes 39 , four adjusting screw rods 40 and a third motor 42 are added on the basis of the first embodiment.

[0037] The working principle of this embodiment is as follows: the second gear 43 is driven to rotate by the third motor 42, and the second gear 43 drives the four first gears 41 and the four first screws 39 to rotate through the chain 44, so that the fixed plate 1 moves up and down, thereby adjusting the height of the workbench 2, making it convenient for people of different heights to perform drilling operations, thereby improving the working comfort of the staff and improving the work efficiency.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drilling device for circuit board production, comprising a fixing plate (1) and a workbench (2), characterized in that: The four corners of the top of the fixed plate (1) are fixedly connected to pillars (3), the bottom end of the workbench (2) is fixedly connected to the tops of the four pillars (3), a first convex groove is arranged on the right side of the top of the workbench (2), a first convex block (4) is slidably arranged inside the first convex groove, a first screw rod (5) is internally threadedly connected to the first convex block (4), the front end and rear end of the first screw rod (5) are rotatably connected to the front end and rear end of the first convex groove respectively, the front end of the first screw rod (5) extends to the front side of the workbench (2), a first motor (6) is fixedly connected to the right side of the front end of the workbench (2), the output end of the first motor (6) is fixedly connected to the front end of the first screw rod (5), the top of the first convex block (4) is fixedly connected to the first motor (6), and the output end of the first motor (6) is fixedly connected to the front end of the first screw rod (5). A support plate (7), the bottom end of the first support plate (7) is slidably matched with the top end of the workbench (2), the left end of the first support plate (7) is provided with a second convex groove, the interior of the second convex groove is slidably provided with a second convex block (8), the interior of the second convex block (8) is threadedly connected with a second screw rod (9), the bottom end and the top end of the second screw rod (9) are rotatably connected to the bottom end and the top end of the second convex groove respectively, the top end of the second screw rod (9) extends to the upper side of the first support plate (7), the top end of the first support plate (7) is fixedly connected with a second motor (10), the output end of the second motor (10) is fixedly connected with the top end of the second screw rod (9), the left end of the second convex block (8) is fixedly connected with a connecting plate (11), the right end of the connecting plate (11) is connected to the first support plate (7) The left end of the connecting plate (11) is slidably matched, the left end of the connecting plate (11) is fixedly connected to an electric cylinder (12), the left end of the electric cylinder (12) is fixedly connected to a drilling machine (13), the output end of the drilling machine (13) is fixedly connected to a universal joint (14), and the left end of the universal joint (14) is installed with a drill bit (15), the left side of the top of the workbench (2) is fixedly connected to two second support plates (16), the middle upper side of the two second support plates (16) is rotatably connected to a mounting plate (17) through a rotating shaft, the top of the mounting plate (17) is provided with a third convex groove, the inside of the third convex groove is provided with a bidirectional screw rod (18), the left end and the right end of the bidirectional screw rod (18) are rotatably connected to the left end and the right end of the third convex groove respectively, and the left and right sides of the bidirectional screw rod (18) The two third convex blocks (19) are both threadedly connected with a third convex block (19), and the two third convex blocks (19) are both slidably matched with the third convex groove. The top ends of the two third convex blocks (19) are fixedly connected with a clamping block (20), and the opposite ends of the two clamping blocks (20) are provided with a clamping groove, and a clamping plate (21) is slidably provided inside the clamping groove. The top ends of the two clamping blocks (20) are both threadedly connected with a third screw rod (22), and the bottom end of the third screw rod (22) extends into the inside of the clamping groove and is rotatably connected to the top of the clamping plate (21). The top end of the third screw rod (22) is fixedly connected with a first turning handle (46), and the right side and the middle position of the inside of the two second support plates (16) are both provided with a fixing mechanism. The top end of the workbench (2) is provided with a dust suction groove (23) running longitudinally therethrough.A dust suction mechanism is provided at the bottom end of the dust suction groove (23); The fixing mechanism comprises a slide groove (24), a slider (25), a compression spring (26), a clamping column (27) and a pull rod (28); the inner wall of the slide groove (24) is slidably matched with the outer wall of the slider (25); one end of the compression spring (26) close to the mounting plate (17) contacts with one end of the slider (25) away from the mounting plate (17); one end of the compression spring (26) away from the mounting plate (17) contacts with one end of the slide groove (24) close to the mounting plate (17); the clamping column (27) is slidably matched with the outer wall of the slider (25); one end of the compression spring (26) close to the mounting plate (17) contacts with one end of the slide groove (24) close to the mounting plate (17); 27) is fixedly connected to one end of the slider (25) close to the mounting plate (17), one end of the clamping column (27) close to the mounting plate (17) extends to the middle of the two second support plates (16), and the front right side and the rear right side of the mounting plate (17) are both provided with clamping grooves at positions corresponding to the clamping column (27), and the clamping grooves are adapted to the clamping column (27), and one end of the pull rod (28) close to the mounting plate (17) is fixedly connected to one end of the slider (25) away from the mounting plate (17); It also comprises a bottom plate (38), wherein the top four corners of the bottom plate (38) are rotatably connected to screw tubes (39), the interior of each screw tube (39) is threadedly connected to an adjusting screw rod (40), the top ends of the four adjusting screw rods (40) are fixedly connected to the bottom end of the fixing plate (1), the exterior of each screw tube (39) is sleeved with a first gear (41), the middle position of the top end of the bottom plate (38) is fixedly connected to a third motor (42), the output end of the third motor (42) is fixedly connected to a second gear (43), and the second gear (43) is transmission-connected to the four first gears (41) via a chain (44).

2. A drilling device for circuit board production according to claim 1, characterized in that: One end of the pull rod (28) away from the mounting plate (17) extends to the outside of the second support plate (16) and is fixedly connected to a pull plate (29).

3. A drilling device for circuit board production according to claim 2, characterized in that: The dust collection mechanism comprises a dust collection hood (30), a dust collection box (31), a dust collection bag (32) and a fan (33); the top end of the dust collection hood (30) is fixedly connected to the bottom end of the workbench (2); the bottom end of the dust collection box (31) is fixedly connected to the top end of the fixed plate (1); the top end of the dust collection box (31) is connected to the bottom end of the dust collection hood (30) via a first dust collection pipe (34); the bag opening of the dust collection bag (32) is mounted on the bottom end of the first dust collection pipe (34); the bottom end of the fan (33) is fixedly connected to the top end of the fixed plate (1); and the output end of the fan (33) is connected to the inside of the dust collection box (31) via a second dust collection pipe (35).

4. A drilling device for circuit board production according to claim 3, characterized in that: The front end of the dust collecting box (31) is fixedly connected to a sealing plate (36) via screws.

5. A drilling device for circuit board production according to claim 4, characterized in that: The left end of the bidirectional screw rod (18) extends to the left side of the mounting plate (17) and is fixedly connected to a second turning handle (37).

6. A drilling device for circuit board production according to claim 5, characterized in that: Support blocks (45) are fixedly connected to the four corners of the bottom end of the bottom plate (38).

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