Anti-offset PCB (Printed Circuit Board) short slot processing equipment

Abstract

The invention relates to the technical field of PCB processing, and particularly discloses an anti-offset PCB short slot processing device. Comprising a fixing square plate, an electric push rod is fixedly connected to the bottom of the fixing square plate, a driving shaft of the electric push rod penetrates through the fixing square plate and is fixedly connected with a pressing plate, a square rubber pad is fixedly connected to the bottom of the pressing plate, and a bottom penetrating rod is fixedly connected to the bottom of the pressing plate. The square rubber pad is used for fixing the plate body in an elastic pressing mode, the static friction force of the plate body is increased through the rubber face of the square rubber pad, and the situation that the machining precision of the short groove hole is affected by continuous slight deviation caused by shaking or shaking when the plate body is subjected to drilling machining is prevented. And a hollow area is arranged between the fixed square plate and the pressing plate, so that cleaned scraps can be conveniently discharged to the outer side, and the situation that the cleaned scraps are pushed to the position between the fixed square plate and the pressing plate by the cleaning device to be accumulated to affect subsequent placement of the PCB during drilling of the drill bit is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of PCB board processing, and in particular to an anti-deviating short slot hole processing device for a PCB board. Background Art

[0002] PCB, or printed circuit board, is an assembly board with mounting holes, connecting wires and pads processed on an insulating substrate to achieve electrical connections between electronic components. It is known as the "mother of electronic products". Its principle is to use the board-based insulating material to isolate the surface copper foil conductive layer, so that the current flows along a pre-designed route in various components to complete functions such as work, amplification, attenuation, modulation, demodulation, and encoding. The short slot hole of the PCB board generally refers to an elliptical slot hole with a slot length less than or equal to 2 times the slot width. It is an irregularly shaped drilling hole. When processing the short slot hole of the PCB board, a drill bit is usually used to drill the PCB board multiple times to gradually form an elliptical slot hole;

[0003] Since the short slot holes of the PCB board need to be gradually formed into elliptical short slot holes through multiple circular drillings, the short slot holes of the PCB board will be affected by the jitter or shaking caused by external forces when processing, causing the PCB board to continuously deviate slightly and affect the processing accuracy. Therefore, we propose an anti-deviation PCB board short slot hole processing equipment. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an anti-deviation PCB board short slot hole processing equipment, comprising a base, the top of the base is fixedly connected to an anti-deviation clamping device, the top of the base is fixedly connected to a mechanical arm, the inner side of the mechanical arm is rotatably connected to an electric drill bit through a rotating bolt, and the outer side of the electric drill bit is sleeved and fixedly connected to a cleaning device;

[0005] The anti-deviation clamping device comprises a fixed square plate, the bottom of which is fixedly connected to an electric push rod, the driving shaft of which passes through the fixed square plate and is fixedly connected to a clamping plate, and a hollow area is provided between the fixed square plate and the clamping plate to facilitate the discharge of cleaned debris to the outside, thereby preventing the cleaning device from pushing the cleaned debris to the space between the fixed square plate and the clamping plate for accumulation when the drill bit is drilling, thereby affecting the subsequent placement of the PCB board, and the bottom of the clamping plate is fixedly connected to a square rubber pad, and the plate body is elastically clamped and fixed by the square rubber pad, and the static friction of the plate body is increased by the rubber surface thereof, thereby preventing the plate body from being slightly deviated continuously due to the influence of shaking or swaying during drilling processing, thereby affecting the processing accuracy of the short slot hole;

[0006] There are four anti-deviation clamping devices, and the four anti-deviation clamping devices are symmetrically distributed on the base, and the bottom of the electric push rod is fixedly connected to the top of the base;

[0007] The bottom of the clamping plate is fixedly connected with a bottom penetration rod, and the bottom penetration rod is arranged at two adjacent corners of the fixed square plate close to the arc-shaped penetration plate to resist and limit the PCB board, so as to prevent the PCB board placed on the fixed square plate from being deviated too much and separated from the fixed square plate due to a large external force. The top of the fixed square plate is fixedly connected with an arc-shaped penetration plate near the driving shaft of the electric push rod, and the driving shaft of the electric push rod is covered and protected at all times by arranging an arc-shaped penetration plate that penetrates the clamping plate at the top of the fixed square plate, so as to prevent the debris pushed by the cleaning from accumulating and adhering to the driving shaft of the electric push rod and affecting the telescopic effect of the driving shaft. The bottom of the fixed square plate is fixedly connected with a bottom support rod;

[0008] The bottom of the bottom through-rod passes through the fixed square plate and is slidably connected to the fixed square plate, and the top of the arc-shaped through-plate passes through the pressing plate and is slidably connected to the pressing plate;

[0009] The bottom of the bottom support rod is fixedly connected to the top of the base, and a plurality of bottom through rods are provided, and the plurality of bottom through rods are respectively distributed at the bottom of the clamping plate near the two outer sides adjacent to the arc-shaped through plate.

[0010] Furthermore, the cleaning device comprises an adjusting mechanism, the bottom of which is fixedly connected with a rounded bottom block, and the rounded bottom block having a smooth rounded surface at the bottom is in smooth contact with the top of the plate body at all times to reduce friction, thereby preventing the bottom block which is in constant squeeze contact with the top of the plate body from having a large contact area and being gradually damaged by the friction, thereby affecting the use effect; the bottom of the rounded bottom block is fixedly connected with a bottom brush, and the rotation of the bottom brush will clean up the dust on the surface of the plate body and the processing residues, thereby preventing the residues and dust generated during multiple circular drilling operations on the plate body from not being cleaned up in time and falling into the short slot holes, thereby affecting the processing effect; one side of the rounded bottom block is rotatably connected with an inner ring block, and the inner side of the inner ring block is fixedly connected with a built-in brush, and when the drill bit rotates, the built-in brush on the inner side of the inner ring block is always in contact with the surface of the drill bit and cleans the drill bit The surface is cleaned by friction, so as to prevent the drill bit from being mixed with too much dust and debris on the surface after long-term use, which affects the effect of subsequent drilling. A T-shaped ring groove is provided on the outer side of the inner ring block, and the inner wall of the T-shaped ring groove is rotatably connected with a T-shaped arc block. By providing a T-shaped ring groove on the outer side of the inner ring block and rotating with the T-shaped arc block, the inner ring block will not rotate with the T-shaped arc block, so as to prevent the rounded bottom block from driving the T-shaped arc block to rotate at a high speed, so that the inner ring block rotates together and it is difficult to clean the drill bit efficiently. The adjusting mechanism is sleeved on the electric drill bit and fixedly connected to the electric drill bit. Three rounded bottom blocks are provided, and the three rounded bottom blocks are circumferentially distributed on the bottom of the adjusting mechanism. Three T-shaped arc blocks are provided, and the three T-shaped arc blocks are circumferentially distributed on the inner wall of the T-shaped ring groove. One side of the T-shaped arc block is fixedly connected to one side of the rounded bottom block.

[0011] Furthermore, the adjusting mechanism includes an annular sleeve block, an outer connecting angle block is fixedly connected to the outer side of the annular sleeve block, and a return spring is fixedly connected to the bottom of the outer connecting angle block. A return spring is arranged between the outer connecting angle block and the rounded bottom block to adapt to the movement of the drill bit for telescopic adjustment, preventing the rounded bottom block from being difficult to adapt to telescopic adjustment when moving up and down with the drill bit, which affects the drilling depth of the drill bit. A corrugated ring is fixedly connected to the bottom of the outer connecting angle block. A corrugated ring is arranged outside the return spring to wrap and cover the return spring, preventing dust and debris cleaned by the bottom brush and the inner brush from splashing and adhering to the return spring, which affects the telescopic effect of the return spring. A top piercing rod penetrates through and is slidably connected to the bottom of the outer connecting angle block. A top piercing rod penetrating through the outer connecting angle block is arranged at the top of the rounded bottom block to limit the movement of the elastically connected rounded bottom block, preventing the rounded bottom block elastically connected by the return spring from tilting and shifting outward under the influence of centrifugal force, which affects the use. By setting the diameter of the top piercing rod to be the same as the inner diameter of the return spring, the shape of the return spring is internally supported and stabilized, preventing the return spring rotating with the outer connecting angle block and the rounded bottom block from gradually being distorted and misaligned under the influence of centrifugal force, which affects the use effect. The annular sleeve block is sleeved on the electric drill bit and fixedly connected to the electric drill bit. There are three outer connecting angle blocks, and the three outer connecting angle blocks are circumferentially distributed on the outer side of the annular sleeve block. The bottom of the return spring is fixedly connected to the top of the rounded bottom block. The bottom of the corrugated ring is fixedly connected to the top of the rounded bottom block. The bottom of the top piercing rod is fixedly connected to the top of the rounded bottom block.

[0012] The present invention provides a PCB board short slot hole processing device with anti-offset function, having the following beneficial effects:

[0013] 1. For this PCB board short slot hole processing device with anti-offset function, the plate body is elastically fixed by the square rubber pad and the static friction force of the plate body is increased through its rubber surface, preventing the plate body from being continuously slightly offset due to shaking or vibration during drilling processing, which affects the processing accuracy of the short slot hole. The bottom brush rotates to clean the dust on the surface of the plate body and the debris generated during processing, preventing the debris and dust generated during multiple circular drilling processes of the plate body from not being cleaned in time and falling into the short slot hole, which affects the processing effect. A return spring is arranged between the outer connecting angle block and the rounded bottom block to adapt to the movement of the drill bit for telescopic adjustment, preventing the rounded bottom block from being difficult to adapt to telescopic adjustment when moving up and down with the drill bit, which affects the drilling depth of the drill bit.

[0014] 2. The anti-deviating PCB short slot processing equipment is provided with an anti-deviating clamping device, which uses a square rubber pad to elastically clamp and fix the plate body, and increases the static friction of the plate body through its rubber surface, so as to prevent the plate body from being slightly deviated continuously due to shaking or swaying during drilling processing, thereby affecting the processing accuracy of the short slot hole. By setting a hollow area between the fixed square plate and the clamping plate, it is convenient for the cleaned debris to be discharged outward, so as to prevent the cleaning device from pushing the cleaned debris to the fixed square plate and the clamping plate for accumulation when the drill bit is drilling, thereby affecting the subsequent placement of the PCB board. By setting an arc-shaped through-plate penetrating the clamping plate at the top of the fixed square plate, the driving shaft of the electric push rod is covered and protected, so as to prevent the debris pushed by the cleaning from accumulating and adhering to the driving shaft of the electric push rod and affecting the telescopic effect of the driving shaft. By setting a bottom through-rod at the adjacent two corners of the fixed square plate close to the arc-shaped through-plate, the PCB board is blocked and limited, so as to prevent the PCB board placed on the fixed square plate from being deviated too much due to a large external force and being separated from the fixed square plate.

[0015] 3. The anti-deviated PCB short slot hole processing equipment is provided with a cleaning device. The rotation of the bottom brush can clean the dust on the surface of the board and the processing debris, so as to prevent the debris and dust generated when the circular drilling processing of the board is performed multiple times and not being cleaned in time from falling into the short slot hole and affecting the processing effect. The rounded bottom block with a smooth rounded corner surface is set to be in smooth contact with the top of the board at all times to reduce the friction force, so as to prevent the bottom block which is always in squeeze contact with the top of the board from having a large contact area and gradually causing damage to the board due to the friction force and affecting the use effect. The T-shaped ring groove is provided on the outer side of the inner ring block to cooperate with the T-shaped arc block to rotate so that the inner ring block will not rotate with the T-shaped arc block, so as to prevent the rounded bottom block from driving the T-shaped arc block to rotate at a high speed so that the inner ring block rotates together and it is difficult to clean the drill bit efficiently. When the drill bit rotates, the built-in brush on the inner side of the inner ring block is in contact with the surface of the drill bit at all times and performs friction cleaning on the surface of the drill bit, so as to prevent the surface of the drill bit from being mixed with too much dust and debris after long-term use and affecting the effect of subsequent drilling.

[0016] 4. The PCB short slot hole processing equipment for preventing deviation is provided with an adjusting mechanism. By setting a reset spring between the externally connected corner block and the rounded bottom block, it adapts to the movement of the drill bit for telescopic adjustment, preventing the rounded bottom block from being difficult to adapt to telescopic adjustment when moving up and down with the drill bit, which affects the drilling depth of the drill bit. By setting a corrugated ring outside the reset spring to wrap and cover the reset spring, it prevents the dust and debris cleaned by the bottom brush and the built-in brush from splashing and adhering to the reset spring, which affects the telescopic effect of the reset spring. By setting a top-through rod passing through the externally connected corner block at the top of the rounded bottom block to limit the movement of the elastically connected rounded bottom block, it prevents the rounded bottom block elastically connected by the reset spring from tilting and deviating outward under the influence of centrifugal force, which affects the use. By setting the diameter of the top-through rod to be the same as the inner diameter of the reset spring to internally support and stabilize the shape of the reset spring, it prevents the reset spring rotating with the externally connected corner block and the rounded bottom block from gradually being distorted and misaligned under the influence of centrifugal force, which affects the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of the PCB short slot hole processing equipment of the present invention;

[0018] Figure 2 Schematic diagram of the side structure of the PCB short slot hole processing equipment of the present invention;

[0019] Figure 3 Schematic diagram of the structure of the anti-deviation pressing device of the present invention;

[0020] Figure 4 Schematic diagram of the bottom structure of the anti-deviation pressing device of the present invention;

[0021] Figure 5 Schematic diagram of the structure of the cleaning device of the present invention;

[0022] Figure 6 Schematic diagram of the bottom side cross-section structure of the cleaning device of the present invention;

[0023] Figure 7 Schematic diagram of the structure of the adjusting mechanism of the present invention;

[0024] Figure 8 Schematic diagram of the partial side cross-section structure of the adjusting mechanism of the present invention.

[0025] In the figure: 1, base; 2, anti-offset pressing device; 3, robotic arm; 4, electric drill bit; 5, cleaning device; 201, fixed square plate; 202, electric push rod; 203, pressing plate; 204, square rubber pad; 205, bottom through rod; 206, arc-shaped through plate; 207, bottom support rod; 501, adjustment mechanism; 502, rounded bottom block; 503, bottom brush; 504, inner connecting ring block; 505, built-in brush; 506, T-shaped ring groove; 507, T-shaped arc block; 5011, annular sleeve block; 5012, outer connecting angle block; 5013, return spring; 5014, corrugated ring plate; 5015, top through rod. Detailed implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1-4 , the present invention provides a PCB board short slot hole processing device with anti-offset function, including a base 1, a top of the base 1 is fixedly connected with an anti-offset pressing device 2, a top of the base 1 is fixedly connected with a robotic arm 3, an inner side of the robotic arm 3 is rotationally connected with an electric drill bit 4 through a rotating bolt, and an outer side of the electric drill bit 4 is sleeved and fixedly connected with a cleaning device 5;

[0028] The anti-offset pressing device 2 includes a fixed square plate 201, a bottom of the fixed square plate 201 is fixedly connected with an electric push rod 202, a driving shaft of the electric push rod 202 penetrates through the fixed square plate 201 and is fixedly connected with a pressing plate 203, and a bottom of the pressing plate 203 is fixedly connected with a square rubber pad 204;

[0029] There are four anti-offset pressing devices 2, and the four anti-offset pressing devices 2 are symmetrically distributed on the base 1, and a bottom of the electric push rod 202 is fixedly connected with a top of the base 1;

[0030] A bottom of the pressing plate 203 is fixedly connected with a bottom through rod 205, a part of the top of the fixed square plate 201 near the driving shaft of the electric push rod 202 is fixedly connected with an arc-shaped through plate 206, and a bottom of the fixed square plate 201 is fixedly connected with a bottom support rod 207;

[0031] A bottom of the bottom through rod 205 penetrates through the fixed square plate 201 and is slidably connected with the fixed square plate 201, and a top of the arc-shaped through plate 206 penetrates through the pressing plate 203 and is slidably connected with the pressing plate 203;

[0032] The bottom of the bottom support rod 207 is fixedly connected to the top of the base 1. There are multiple bottom through rods 205, and the multiple bottom through rods 205 are respectively distributed at positions on the bottom of the pressing plate 203 near the two outer sides adjacent to the arc-shaped through plate 206. During use, the lower backing plate, the PCB substrate, and the upper cover plate are sequentially placed on the four anti-offset pressing devices 2. The four corners of the plate body are elastically pressed and fixed against offset by the anti-offset pressing devices 2. After the plate body is fixed, the robotic arm 3 drives the electric drill 4 to perform multiple drilling operations on the designated positions of the PCB substrate. When the electric drill 4 rotates, it drives the cleaning device 5 on the outside to rotate together to clean the debris around the drilled holes and the drill bit. Place the four corners of the lower backing plate, the PCB substrate, and the upper cover plate on the fixed square plate 201 in sequence, and then drive the pressing plate 203 to move downward by the electric push rod 202. When the pressing plate 203 moves downward and drives the square rubber pad 204 at the bottom to move downward together until it contacts the upper cover plate, it elastically presses and fixes the plate body against offset. The plate body is elastically pressed and fixed by the square rubber pad 204, and its rubber surface is used to increase the static friction of the plate body. By setting the area between the fixed square plate 201 and the pressing plate 203 as a hollow area, the debris that is easy to clean is discharged to the outside. By setting the arc-shaped through plate 206 that penetrates the pressing plate 203 on the top of the fixed square plate 201, the drive shaft of the electric push rod 202 can be covered and protected at all times. By setting the bottom through rods 205 at the adjacent two corner positions of the fixed square plate 201 close to the arc-shaped through plate 206, the PCB board is resisted and limited. After the PCB board is processed, the electric push rod 202 pushes the pressing plate 203 to move upward and drives the bottom through rods 205 to move upward together. When the bottom through rods 205 move upward to a position above the PCB board at the top of the fixed square plate 201, the processed PCB board can be removed.

[0033] Please refer to Figures 1-8 , the present invention provides a PCB board short slot hole processing device for preventing offset: The cleaning device 5 includes an adjustment mechanism 501. The bottom of the adjustment mechanism 501 is fixedly connected to a rounded bottom block 502. The bottom of the rounded bottom block 502 is fixedly connected to a bottom brush 503. One side of the rounded bottom block 502 is rotatably connected to an inner connecting ring block 504. The inner side of the inner connecting ring block 504 is fixedly connected to an inner brush 505. The outer side of the inner connecting ring block 504 is provided with a T-shaped ring groove 506. The inner wall of the T-shaped ring groove 506 is rotatably connected to a T-shaped arc block 507. The adjustment mechanism 501 is sleeved on the electric drill 4 and fixedly connected to the electric drill 4. There are three rounded bottom blocks 502, and the three rounded bottom blocks 502 are circumferentially distributed at the bottom of the adjustment mechanism 501. There are three T-shaped arc blocks 507, and the three T-shaped arc blocks 507 are circumferentially distributed on the inner wall of the T-shaped ring groove 506. One side of the T-shaped arc block 507 is fixedly connected to one side of the rounded bottom block 502;

[0034] The adjusting mechanism 501 includes an annular sleeve block 5011, the outer side of the annular sleeve block 5011 is fixedly connected with an external angle block 5012, the bottom of the external angle block 5012 is fixedly connected with a return spring 5013, the bottom of the external angle block 5012 is fixedly connected with a corrugated ring piece 5014, the bottom of the external angle block 5012 is penetrated and slidably connected with a top-through rod 5015, the annular sleeve block 5011 is sleeved on the electric drill bit 4 and is fixedly connected to the electric drill bit 4, three external angle blocks 5012 are provided, and the three external angle blocks 5012 are circumferentially distributed on the outer side of the annular sleeve block 5011, the bottom of the return spring 5013 is fixedly connected to the top of the rounded bottom block 502, and the bottom of the corrugated ring piece 5014 is fixedly connected to the top of the rounded bottom block 502 The bottom of the piercing rod 5015 is fixedly connected to the top of the rounded bottom block 502. When in use, the drill bit rotates and drives the adjusting mechanism 501 set on the outside to rotate together. When the adjusting mechanism 501 rotates, it drives the rounded bottom block 502 at the bottom to rotate around the inner ring block 504. When the rounded bottom block 502 rotates, it drives the bottom brush 503 and the T-shaped arc block 507 on one side to rotate around the inner ring block 504. The rotation of the bottom brush 503 will clean the dust on the surface of the plate and the processing debris. When the drill bit moves down to drill a hole in the plate, it drives the adjusting mechanism 501 and the rounded bottom block 502 to move down together. After the rounded bottom block 502 moves down to contact with the top of the plate, it is always in contact with the top of the plate under the adaptive telescopic adjustment of the adjusting mechanism 501. The rounded bottom block 502 with a smooth rounded bottom surface is always in smooth contact with the top of the plate to reduce friction. A T-shaped ring groove 506 is provided on the outer side of the inner ring block 504 to rotate with the T-shaped arc block 507 so that the inner ring block 504 will not rotate with the T-shaped arc block 507. When the drill bit rotates, the built-in brush 505 on the inner side of the inner ring block 504 is always in contact with the drill bit surface and rubs and cleans the drill bit surface. When the drill bit moves downward to drill a hole, the annular sleeve block 5011, the outer corner block 5012 and the rounded bottom block 502 move downward together. After the rounded bottom block 502 moves down to contact with the top of the plate, the return spring 5013 on the top is compressed. At the same time, the rounded bottom block 502 drives the top to penetrate the outer corner block 5012. The piercing rod 5015 gradually moves upward, and when the drill bit is processed and drives the annular sleeve block 5011 to move back upward, the reset spring 5013 is reset and stretched by the stretching force, and the reset spring 5013 is arranged between the externally connected corner block 5012 and the rounded bottom block 502 to adapt to the movement of the drill bit for adaptive telescopic adjustment, and a corrugated ring piece 5014 is arranged on the outside of the reset spring 5013 to wrap and cover the reset spring 5013, and a piercing rod 5015 that penetrates the externally connected corner block 5012 is arranged on the top of the rounded bottom block 502 to limit the movement of the elastically connected rounded bottom block 502, and the diameter of the piercing rod 5015 is set to be the same as the inner diameter of the reset spring 5013 to support the reset spring 5013 internally and stabilize its shape.

[0035] When the present invention is in operation, the lower pad, PCB substrate and upper cover are placed on the four anti-deviation clamping devices 2 in turn, and the four corners of the plate body are elastically clamped and anti-deviated by the anti-deviation clamping devices 2. After the plate body is fixed, the mechanical arm 3 drives the electric drill 4 to perform multiple drilling processes on the designated position of the PCB substrate. When the electric drill 4 rotates, it will drive the cleaning device 5 on the outside to rotate together to clean the debris around the drill hole and the drill bit. The four corners of the lower pad, PCB substrate and upper cover are placed on the fixed square plate 201 in turn, and then the electric push rod 202 drives the clamping plate 203 to move downward. The clamping plate 203 moves downward and drives the square rubber pad 204 at the bottom to move downward until it contacts the upper cover plate to elastically clamp the plate body. The clamping anti-deviation fixation uses a square rubber pad 204 to elastically clamp the plate body and increase the static friction of the plate body through its rubber surface. A hollow area is set between the fixed square plate 201 and the clamping plate 203 to facilitate the discharge of cleaned debris to the outside. An arc-shaped penetrating plate 206 that penetrates the clamping plate 203 is set on the top of the fixed square plate 201 to cover and protect the driving shaft of the electric push rod 202 at all times. A bottom penetrating rod 205 is set at the adjacent two corners of the fixed square plate 201 close to the arc-shaped penetrating plate 206 to resist and limit the PCB board. After the PCB board is processed, the clamping plate 203 is pushed upward by the electric push rod 202 and the bottom penetrating rod 205 is driven to move upward together. The bottom penetrating rod 205 moves up to the top of the fixed square plate 201 When the drill bit is located above the PCB board, the processed PCB board can be removed. When the drill bit rotates, it drives the adjusting mechanism 501 set on the outside to rotate together. When the adjusting mechanism 501 rotates, it drives the rounded bottom block 502 at the bottom to rotate around the inner ring block 504. When the rounded bottom block 502 rotates, it drives the bottom brush 503 and the T-shaped arc block 507 on one side to rotate around the inner ring block 504. The rotation of the bottom brush 503 will clean the dust on the surface of the board and the processing debris. When the drill bit moves down to drill a hole in the board, it drives the adjusting mechanism 501 and the rounded bottom block 502 to move down together. After the rounded bottom block 502 moves down to contact with the top of the board, it is always in contact with the top of the board under the adaptive telescopic adjustment of the adjusting mechanism 501. By setting the bottom to be light The rounded bottom block 502 with a smooth rounded surface is in smooth contact with the top of the plate body at all times to reduce friction. By providing a T-shaped ring groove 506 on the outer side of the inner ring block 504 to rotate with the T-shaped arc block 507, the inner ring block 504 will not rotate with the T-shaped arc block 507. When the drill bit rotates, the built-in brush 505 on the inner side of the inner ring block 504 is in contact with the drill bit surface at all times and rubs and cleans the drill bit surface. When the drill bit moves downward to drill a hole, driving the annular sleeve block 5011, the outer corner block 5012 and the rounded bottom block 502 to move downward together, the rounded bottom block 502 moves downward until it contacts the top of the plate body and compresses the return spring 5013 on the top. At the same time, the rounded bottom block 502 will drive the top penetration rod 5015 that penetrates the outer corner block 5012 to gradually move upward.When the drill bit finishes processing and drives the annular sleeve block 5011 to move upward, the return spring 5013 is reset and extended by the stretching force. By arranging the return spring 5013 between the outer connecting angle block 5012 and the rounded corner bottom block 502, it adapts to the movement of the drill bit for telescopic adjustment. By arranging a corrugated ring piece 5014 outside the return spring 5013 to wrap and cover the return spring 5013. By arranging a top-piercing rod 5015 that penetrates the outer connecting angle block 5012 at the top of the rounded corner bottom block 502 to limit the movement of the elastically connected rounded corner bottom block 502. By setting the diameter of the top-piercing rod 5015 to be the same as the inner diameter of the return spring 5013 to internally support and stabilize the shape of the return spring 5013.,

[0036] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A PCB short slot hole processing device for preventing deviation, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected with an anti-offset pressing device (2). The top of the base (1) is fixedly connected with a robotic arm (3). The inner side of the robotic arm (3) is rotatably connected with an electric drill bit (4) through a rotating bolt. The outer side of the electric drill bit (4) is sleeved and fixedly connected with a cleaning device (5). The anti-offset pressing device (2) includes a fixed square plate (201). The bottom of the fixed square plate (201) is fixedly connected with an electric push rod (202). The drive shaft of the electric push rod (202) penetrates through the fixed square plate (201) and is fixedly connected with a pressing plate (203). The bottom of the pressing plate (203) is fixedly connected with a square rubber pad (204).

2. The short slot hole processing equipment for a PCB board with anti-offset according to claim 1, characterized in that: There are four anti-offset pressing devices (2), and the four anti-offset pressing devices (2) are symmetrically distributed on the base (1). The bottom of the electric push rod (202) is fixedly connected with the top of the base (1).

3. A PCB short slot hole processing device for preventing deviation according to claim 1, characterized in that: The bottom of the pressing plate (203) is fixedly connected with a bottom through rod (205). The part of the top of the fixed square plate (201) close to the drive shaft of the electric push rod (202) is fixedly connected with an arc through plate (206). The bottom of the fixed square plate (201) is fixedly connected with a bottom support rod (207).

4. The PCB short slot hole processing equipment for preventing deviation according to claim 3, characterized in that: The bottom of the bottom through rod (205) penetrates through the fixed square plate (201) and is slidably connected with the fixed square plate (201). The top of the arc through plate (206) penetrates through the pressing plate (203) and is slidably connected with the pressing plate (203).

5. The short slot hole processing equipment for a PCB board to prevent deviation according to claim 3, characterized in that: The bottom of the bottom support rod (207) is fixedly connected with the top of the base (1). There are multiple bottom through rods (205), and the multiple bottom through rods (205) are respectively distributed at positions on the bottom of the pressing plate (203) close to the two outer sides adjacent to the arc through plate (206).

6. The short slot hole processing equipment for a PCB board with anti-offset according to claim 1, characterized in that: The cleaning device (5) includes an adjusting mechanism (501). The bottom of the adjusting mechanism (501) is fixedly connected with a rounded bottom block (502). The bottom of the rounded bottom block (502) is fixedly connected with a bottom brush (503). One side of the rounded bottom block (502) is rotatably connected with an internally-connected ring block (504). The inner side of the internally-connected ring block (504) is fixedly connected with an internal brush (505). The outer side of the internally-connected ring block (504) is provided with a T-shaped ring groove (506). The inner wall of the T-shaped ring groove (506) is rotatably connected with a T-shaped arc block (507).

7. The PCB short slot hole processing equipment for preventing deviation according to claim 6, characterized in that: The adjusting mechanism (501) is sleeved on the electric drill bit (4) and is fixedly connected with the electric drill bit (4). There are three rounded bottom blocks (502), and the three rounded bottom blocks (502) are circumferentially distributed at the bottom of the adjusting mechanism (501).

8. The PCB short slot hole processing equipment for preventing deviation according to claim 6, characterized in that: There are three T-shaped arc blocks (507), and the three T-shaped arc blocks (507) are circumferentially distributed on the inner wall of the T-shaped ring groove (506). One side of the T-shaped arc block (507) is fixedly connected with one side of the rounded bottom block (502).

9. The PCB short slot hole processing equipment for preventing deviation according to claim 6, characterized in that: The adjusting mechanism (501) includes an annular sleeve block (5011). An externally connected angle block (5012) is fixedly connected to the outer side of the annular sleeve block (5011). A return spring (5013) is fixedly connected to the bottom of the externally connected angle block (5012). A corrugated ring piece (5014) is fixedly connected to the bottom of the externally connected angle block (5012). A top piercing rod (5015) penetrates through and is slidably connected to the bottom of the externally connected angle block (5012).

10. The PCB short slot hole processing equipment for preventing deviation according to claim 9, characterized in that: The annular sleeve block (5011) is sleeved on the electric drill bit (4) and fixedly connected to the electric drill bit (4). There are three externally connected angle blocks (5012), and the three externally connected angle blocks (5012) are circumferentially distributed on the outer side of the annular sleeve block (5011). The bottom of the return spring (5013) is fixedly connected to the top of the rounded bottom block (502). The bottom of the corrugated ring piece (5014) is fixedly connected to the top of the rounded bottom block (502). The bottom of the top piercing rod (5015) is fixedly connected to the top of the rounded bottom block (502).

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