WO2023024043A1

WO2023024043A1 - Printed circuit board substrate burr removing apparatus for electronic device production

Info

Publication number: WO2023024043A1
Application number: PCT/CN2021/114857
Authority: WO
Inventors: 凌艳; 蔡昌勇; 莫磊; 朱静; 王雷涛; 陆海燕
Original assignee: 成都航空职业技术学院
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2023-03-02

Abstract

A PCB substrate burr removing apparatus for electronic device production. The apparatus comprises a collecting box (1), wherein two fixing supports (2) are fixedly mounted at the top of the collecting box (1); lifting grooves are provided in the tops of both the fixing supports (2); lifting rods (3) are slidably mounted in both the lifting grooves; the same top plate (4) is fixedly mounted at the top ends of the two lifting rods (3); an air cylinder (12) is fixedly mounted on one side of each of the two fixing supports (2), and output shafts of the two air cylinders (12) are both fixedly connected to the bottom of the top plate (4); a rotation hole is provided in the top of the top plate (4); a rotating base (5) is rotatably mounted in the rotation hole; two fixing slots are provided in the bottom of the rotating base (5); and polishing rollers (6) are slidably mounted in the two fixing slots.

Description

A device for removing burrs from printed circuit board substrates for electronic equipment production

technical field

The invention relates to the technical field of electronic equipment production, in particular to a PCB substrate deburring device for electronic equipment production.

Background technique

The PCB base material is the provider of the electrical connection of electronic components. It has at least one conductive pattern on it and is equipped with holes. It is used to replace the chassis of the electronic components in the past and realize the interconnection between electronic components. The hole on the material can make the lines of more than two layers conduct with each other. The strength of the hole should be moderate to ensure that it will not break during the process of loading and unloading the board. The hole diameter and position accuracy should be high. The hole wall is smooth and burr-free. Burrs often remain and need to be removed.

However, the existing cleaning equipment has low working efficiency and cannot clean multiple substrates at the same time. At the same time, the cleaning equipment has poor versatility and cannot remove burrs on the hole walls of different sizes, nor can it remove impurities after cleaning. Chips are collected.

technical problem

The object of the present invention is to solve the shortcomings in the prior art, and propose a PCB substrate deburring device for electronic equipment production.

technical solution

In order to achieve the above object, the present invention adopts the following technical scheme: a PCB substrate burr removal device for electronic equipment production, including a collection box, the top of the collection box is fixedly installed with two fixing brackets, and the top of the two fixing brackets There are lifting slots on both of them, and lifting rods are slidingly installed in the two lifting slots. The top of the two lifting rods is fixedly installed with the same top plate, and one side of the two fixing frames is fixedly installed with cylinders. The output shafts of the two cylinders Both are fixedly connected to the bottom of the top plate, and the top of the top plate is provided with a rotation hole, and a rotation seat is installed in the rotation hole, and the bottom of the rotation seat is provided with two fixing grooves, and a grinding roller is slidingly installed in the two fixing grooves. A first connecting wheel is fixedly sleeved on the swivel seat, a motor slot is opened on the top of the top plate, a first motor is fixedly installed in the motor slot, and a second connecting wheel is fixedly connected to the output shaft of the first motor. The wheel meshes with the first connecting wheel, and one side of the two fixed frames is provided with moving holes, and screw rods are slidably installed in the two moving holes, and the ends of the two screw rods that are close to each other are fixedly installed with a placement seat, and the two placement seats There are placement grooves on the sides close to each other, the tops of the two placement grooves are open, and a plurality of substrates are placed in the two placement grooves, and the two grinding rollers are in contact with the hole walls of the substrates. A fan is fixedly installed on one side of the fan, the air inlet pipe of the fan is fixedly installed in the collection box, a filter screen is fixedly installed in the collection box, and a collection pipe is fixedly installed on the top of the collection box. Worm gears are threaded on each of the screw rods, and the worm gears are rotatably connected to one side of the corresponding fixed frame. Side columns are fixedly installed on both sides of the collection box, and rotating rods are installed on the two side columns. Worms are fixedly installed on the tops of the two rotating rods, and the worms mesh with the corresponding worm gears, and first pulleys are fixedly installed on the bottom ends of the two rotating rods, and the same belt is connected to the two first pulleys for transmission. The bottom of the collection box is provided with a motor slot, and a second motor is fixedly installed in the motor slot, and a second pulley is fixedly connected to the output shaft of the second motor, and the second pulley is engaged with the belt.

Beneficial effect

Preferably, one side of the two frame plates is provided with an annular groove, one side of the two worm wheels is fixedly installed with a fixed block, and the fixed block is slidably connected with the side wall of the corresponding annular groove, and the worm wheel can be controlled when it rotates. The fixed block moves in the circular groove, which can stabilize the rotating position of the worm wheel.

Preferably, an annular groove is formed on the inner wall of the rotating hole, an auxiliary block is fixedly installed on the rotating seat, and the auxiliary block is slidably connected to the side wall of the annular groove.

Preferably, a turning hole is opened at the top of the side column, and the turning rod is rotatably connected in the turning hole.

Preferably, one side of the two grinding rollers is provided with threaded holes, and the inner wall of the side where the two fixing grooves are close to each other is provided with the same fixing hole, and the outer rings of two bearings are fixedly installed in the fixing holes, and the two bearings The inner rings of the two screw rods are fixedly connected with screw rods, and the screw rods are screwed into the corresponding threaded holes. One end of the two screw rods is rotated and installed on the inner wall of the corresponding two fixing grooves, and the other ends of the two screw rods are fixedly installed. There is a first bevel gear.

Preferably, a connecting hole is opened on the inner wall of the top of the fixing hole, and a connecting rod is rotatably connected in the connecting hole. The top and the bottom end of the connecting rod are fixedly equipped with a second bevel gear, and the second bevel gear meshes with the two first bevel gears.

Preferably, a moving groove is provided on the inner wall of the fixed groove, and a mounting block is fixedly installed on the grinding roller, and the mounting block is slidably connected with the inner wall of the moving groove. When the grinding roller moves, the mounting block can be driven to move in the moving groove, and Ensure the position of the grinding roller when moving.

Preferably, two connection grooves are opened on the top of the collection box, square blocks are fixedly installed on the bottom of the two placement seats, and the square blocks are slidably connected in the corresponding connection grooves.

Compared with the prior art, the beneficial effect of the present invention is that: in this solution, multiple substrates are stacked and placed in two storage slots, the second motor controls the rotation of the second pulley, and the belt drives the two first pulleys to rotate , the rotating rod can control the corresponding worm to rotate, the worm drives the corresponding worm wheel to rotate, and the screw controls the movement of the corresponding placement seat, so that the two placement seats move towards each other, and the inner walls of the two placement grooves can carry out multiple substrates Clamping and fixing, two cylinders can drive the top plate to move, two grinding rollers enter the holes of multiple base materials at the same time, turn the control seat, the control seat can drive the connecting rod to rotate, and the first bevel gear drives the corresponding screw to rotate until After the two grinding rollers move to contact with the hole wall of the base material, the position of the two grinding rollers can be fixed, and the movable distance of the two grinding rollers can adapt to the hole walls of different sizes, the first motor starts to drive the second connection When the wheel rotates, the rotating seat can drive two grinding rollers to rotate at the same time. The two grinding rollers can grind multiple substrates at the same time. When grinding, the fan drives the air flow in the collection box, and the debris and dust generated by grinding enter together with the air. In the collection box, the filter screen can filter and collect debris and dust, which can avoid the impact of debris and dust on the working environment. After grinding, the cylinder drives the grinding roller to pull out, and the two placement seats reset to the direction away from each other, and the polished The substrate is taken out and replaced with the next batch of substrate for processing.

The invention has reasonable structure and convenient operation. The cleaning device has high working efficiency and can simultaneously clean multiple substrates. At the same time, the cleaning device has good versatility, and can remove burrs on hole walls of different sizes, and can also clean The removed impurities and debris are collected.

Description of drawings

FIG. 1 is a schematic diagram of a front view structure proposed by the present invention.

Fig. 2 is a schematic structural view of the placing seat, the base material and the grinding roller proposed by the present invention.

Fig. 3 is a schematic diagram of the structure of part A proposed by the present invention.

Fig. 4 is a schematic diagram of the structure of part B proposed by the present invention.

Fig. 5 is a schematic diagram of the structure of part C proposed by the present invention.

In the figure: 1. Collection box; 2. Fixed frame; 3. Lifting rod; 4. Top plate; 5. Rotary seat; 6. Grinding roller; 7. First connecting wheel; 8. First motor; 9. Second connection Wheel; 10, screw; 11, placement seat; 12, cylinder; 13, base material; 14, fan; 15, worm wheel; 16, turning rod; 17, worm; 18, first pulley; The second motor; 21, the second pulley; 22, the screw mandrel; 23, the first bevel gear; 24, the connecting rod; 25, the control seat; 26, the second bevel gear.

Embodiments of the present invention

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and similar words used in the patent specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Likewise, words like "a" or "one" do not denote a limitation in quantity, but indicate that there is at least one.

Embodiment 1 : Referring to Figures 1-5, a device for removing burrs from PCB substrates for electronic equipment production includes a collection box 1, and two fixing frames 2 are fixedly installed on the top of the collecting box 1, and the tops of the two fixing frames 2 are Lifting grooves are provided, and lifting rods 3 are slidingly installed in the two lifting grooves, and the same top plate 4 is fixedly installed on the top of the two lifting rods 3, and a cylinder 12 is fixedly installed on one side of the two fixing frames 2, and two The output shafts of the cylinder 12 are all fixedly connected to the bottom of the top plate 4, and the top of the top plate 4 is provided with a rotation hole, and the rotation seat 5 is installed in the rotation hole, and the bottom of the rotation seat 5 is provided with two fixing grooves, and the two fixing grooves Grinding rollers 6 are slidably installed, and the first connecting wheel 7 is fixedly sleeved on the rotating seat 5. The top of the top plate 4 is provided with a motor slot, and the first motor 8 is fixedly installed in the motor slot. On the output shaft of the first motor 8 The second connecting wheel 9 is fixedly connected, and the second connecting wheel 9 meshes with the first connecting wheel 7. One side of the two fixed frames 2 is provided with a moving hole, and a screw rod 10 is slidably installed in the two moving holes. One end of the screw rod 10 close to each other is fixedly equipped with a placement seat 11, and a side where the two placement seats 11 are close to each other is provided with a placement groove, and the tops of the two placement grooves are openings, and a plurality of material 13, two grinding rollers 6 are in contact with the hole wall of the base material 13, a fan 14 is fixedly installed on one side of the collection box 1, and the air inlet pipe of the fan 14 is fixedly installed in the collection box 1, and is fixedly installed in the collection box 1 There is a filter screen, the top of the collection box 1 is fixedly equipped with a collection pipe, the collection pipe is located between the two placement seats 11, the two screw rods 10 are threaded with a worm wheel 15, and the worm wheel 15 is rotatably connected to one of the corresponding fixed frame 2 side, both sides of the collection box 1 are fixedly equipped with side posts, and both side posts are rotatably equipped with rotating rods 16, and the tops of the two rotating rods 16 are fixedly installed with worms 17, and the worms 17 and corresponding worm gears 15 meshing, the bottom ends of the two rotating rods 16 are fixedly installed with the first pulley 18, and the same belt 19 is connected to the transmission on the two first pulleys 18, and the bottom of the collection box 1 is provided with a motor slot, and the motor slot A second motor 20 is fixedly installed, and a second pulley 21 is fixedly connected to the output shaft of the second motor 20 , and the second pulley 21 meshes with the belt 19 .

In this embodiment, one side of the two frame plates 2 is provided with a circular groove, and one side of the two worm wheels 15 is fixedly equipped with a fixed block, and the fixed block is slidably connected with the side wall of the corresponding circular groove, and the worm wheel 15 When the rotation occurs, the fixed block can be controlled to move in the circular groove, and the rotating position of the worm wheel 15 can be stabilized.

In this embodiment, an annular groove is formed on the inner wall of the rotating hole, and an auxiliary block is fixedly installed on the rotating seat 5, and the auxiliary block is slidably connected with the side wall of the annular groove.

In this embodiment, a turning hole is opened at the top of the side column, and the turning rod 16 is rotatably connected in the turning hole.

In this embodiment, one side of the two grinding rollers 6 is provided with threaded holes, and the inner wall of the side where the two fixing grooves are close to each other is provided with the same fixing hole, and the outer rings of the two bearings are fixedly installed in the fixing holes. The inner rings of the two bearings are fixedly connected with screw rods 22, and the screw rods 22 are screwed into the corresponding threaded holes. The other end of 22 is all fixedly installed with first bevel gear 23.

In this embodiment, a connecting hole is provided on the inner wall of the top of the fixing hole, and a connecting rod 24 is rotatably connected in the connecting hole. Connected to the top of the rotating base 5 , the bottom end of the connecting rod 24 is fixedly mounted with a second bevel gear 26 , and the second bevel gear 26 meshes with the two first bevel gears 23 .

In this embodiment, a moving groove is provided on the inner wall of the fixed groove, and a mounting block is fixedly installed on the grinding roller 6. The mounting block is slidingly connected with the inner wall of the moving groove. When the grinding roller 6 moves, the mounting block can be driven to move in the moving groove , can ensure the position of the grinding roller 6 when it moves.

In this embodiment, the top of the collection box 1 is provided with two connecting grooves, and the bottoms of the two placing seats 11 are fixedly installed with square blocks, and the square blocks are slidably connected in the corresponding connecting grooves.

Embodiment 2 : Referring to Figures 1-5, a PCB substrate burr removal device for electronic equipment production includes a collection box 1, and the top of the collection box 1 is fixed with two fixing frames 2 by screws, and the two fixing frames 2 There are lifting slots on the top, and lifting rods 3 are slidingly installed in the two lifting slots. The tops of the two lifting rods 3 are fixed with the same top plate 4 by screws, and one side of the two fixing frames 2 is fixed and installed by screws. There are cylinders 12, the output shafts of the two cylinders 12 are all fixedly connected to the bottom of the top plate 4, the top of the top plate 4 is provided with a rotation hole, and a rotation seat 5 is installed in the rotation hole, and the bottom of the rotation seat 5 is provided with two fixing grooves , the grinding roller 6 is slidingly installed in the two fixed grooves, the first connecting wheel 7 is fixedly sleeved on the rotating seat 5, the top of the top plate 4 is provided with a motor groove, and the first motor 8 is fixedly installed in the motor groove by screws. The output shaft of the first motor 8 is fixedly connected with the second connecting wheel 9, the second connecting wheel 9 meshes with the first connecting wheel 7, and one side of the two fixed mounts 2 is provided with a moving hole, and both moving holes Screw rods 10 are slidably installed, and one end of the two screw rods 10 close to each other is fixed with a placement seat 11 by screws, and the sides of the two placement seats 11 close to each other are provided with placement grooves, and the tops of the two placement grooves are openings. A plurality of substrates 13 are placed in the two placement slots, and the two grinding rollers 6 are in contact with the hole walls of the substrates 13. One side of the collection box 1 is fixed with a fan 14 by screws, and the air inlet pipe of the fan 14 is connected by screws. Fixedly installed in the collection box 1, the filter screen is fixedly installed in the collection box 1 by screws, the top of the collection box 1 is fixed with a collection pipe by screws, the collection pipe is located between the two placement seats 11, and the two screw rods 10 A worm wheel 15 is installed on the thread, and the worm wheel 15 is rotatably connected to one side of the corresponding fixed frame 2. Both sides of the collection box 1 are fixed with side columns by screws, and a rotating rod 16 is installed on the two side columns for rotation. The tops of the two rotating rods 16 are all fixedly equipped with a worm screw 17 by screws, and the worm screw 17 is engaged with the corresponding worm wheel 15, and the bottom ends of the two rotating rods 16 are fixedly installed with a first pulley 18 by screws, and the two first belt wheels The same belt 19 is connected with the transmission on the wheel 18, and the bottom of the collection box 1 is provided with a motor slot, and a second motor 20 is fixedly installed in the motor slot by screws, and a second pulley 21 is fixedly connected to the output shaft of the second motor 20. , the second pulley 21 meshes with the belt 19 .

In this embodiment, one side of the two frame plates 2 is provided with a circular groove, and one side of the two worm wheels 15 is fixed with a fixed block by screws, and the fixed block is slidably connected with the side wall of the corresponding circular groove. When the worm wheel 15 rotates, the fixed block can be controlled to move in the annular groove, and the position of the worm wheel 15 rotation can be stabilized.

In this embodiment, an annular groove is formed on the inner wall of the rotating hole, and an auxiliary block is fixedly mounted on the rotating base 5 by screws, and the auxiliary block is slidably connected with the side wall of the annular groove.

In this embodiment, one side of the two grinding rollers 6 is provided with threaded holes, and the inner wall of the side where the two fixing grooves are close to each other is provided with the same fixing hole, and the outer surface of the two bearings is fixed and installed in the fixing holes by screws. The inner rings of the two bearings are fixedly connected with screw rods 22, and the screw rods 22 are threaded in the corresponding threaded holes. The other ends of the screw mandrels 22 are all fixedly installed with a first bevel gear 23 by screws.

In this embodiment, a connecting hole is provided on the top inner wall of the fixing hole, and a connecting rod 24 is connected in rotation in the connecting hole. 25 is rotatably connected to the top of the rotating base 5, and the bottom end of the connecting rod 24 is fixedly equipped with a second bevel gear 26 by screws, and the second bevel gear 26 meshes with two first bevel gears 23.

In this embodiment, a moving groove is provided on the inner wall of the fixed groove, and a mounting block is fixedly installed on the grinding roller 6 by screws, and the mounting block is slidingly connected with the inner wall of the moving groove. Move inside, can guarantee the position when grinding roller 6 moves.

In this embodiment, the top of the collection box 1 is provided with two connection grooves, and the bottoms of the two placement seats 11 are fixed with square blocks by screws, and the square blocks are slidably connected in the corresponding connection grooves.

In this embodiment, by stacking a plurality of substrates 13 in two placement slots, the second motor 20 controls the rotation of the second pulley 21, and the second pulley 21 drives the belt 19 to move, and the belt 19 drives the two first pulleys. The pulley 18 rotates, and the first pulley 18 drives the corresponding rotating rod 16 to rotate. The rotating rod 16 can control the corresponding worm 17 to rotate, and the worm 17 drives the corresponding worm wheel 15 to rotate. The corresponding placement seat 11 moves so that the two placement seats 11 move toward each other, and the inner walls of the two placement grooves can clamp and fix multiple substrates 13. The existing cleaning equipment can only clean one substrate at a time. 13 for cleaning, and at least two or more substrates 13 can be placed in the two placement tanks of the present application for cleaning, and the cleaning efficiency is greatly improved. Two placement seats 11 can not only carry multiple substrates 13, but also multiple The position of the substrate 13 is stabilized to ensure the stability of the substrate 13 during removal. The two cylinders 12 can drive the top plate 4 to move, and the top plate 4 can drive the two grinding rollers 6 on the rotating seat 5 to move. The two grinding rollers 6 Simultaneously enter the holes of a plurality of substrates 13, turn the control seat 25, the control seat 25 can drive the connecting rod 24 to rotate, the connecting rod 24 drives the second bevel gear 26 to rotate, and the second bevel gear 26 drives the two first bevel gears 23 Rotate, the first bevel gear 23 drives the corresponding screw mandrel 22 to rotate, and the screw mandrel 22 drives the corresponding grinding roller 6 to move, so that the two grinding rollers 6 move away from each other until the two grinding rollers 6 move to the base material. After the hole walls of 13 are in contact, stop rotating the control seat 25 to fix the positions of the two grinding rollers 6, and the movable distance of the two grinding rollers 6 is suitable for hole walls of different sizes, and the first motor 8 starts to drive the second The connecting wheel 9 rotates so that the second connecting wheel 9 controls the rotating seat 5 on the first connecting wheel 7 to rotate, and the rotating seat 5 can drive the two grinding rollers 6 to rotate simultaneously, and the two grinding rollers 6 can simultaneously rotate multiple substrates. 13 for grinding. When grinding, the blower fan 14 drives the air flow in the collection box 1, so that the collection pipe absorbs the external air into the collection box 1. The debris dust generated by grinding enters the collection box 1 together with the air, and the filter screen can The debris and dust are filtered and collected to prevent the debris and dust from affecting the working environment. After the grinding is completed, the cylinder 12 drives the grinding roller 6 to be drawn out, and the two placement seats 11 are reset in a direction away from each other, and the polished substrate 13 can be taken out. And replace the next batch of substrates 13 for processing.

Compared with the prior art, the technical progress of the present invention is: the present invention has reasonable structure, convenient operation, high working efficiency of the cleaning equipment, and can clean multiple substrates at the same time. The hole walls of different sizes are deburred, and the impurities and debris after removal can also be collected.

Claims

A PCB substrate deburring device for electronic equipment production, comprising a collecting box (1), characterized in that two fixing frames (2) are fixedly installed on the top of the collecting box (1), and two fixing frames (2 ) are provided with lifting slots on the top, the lifting rods (3) are slidingly installed in the two lifting slots, the top of the two lifting rods (3) is fixedly installed with the same top plate (4), and the two fixing frames (2) Cylinders (12) are fixedly installed on one side of the two cylinders (12), and the output shafts of the two cylinders (12) are fixedly connected to the bottom of the top plate (4). There is a swivel seat (5), and the bottom of the swivel seat (5) is provided with two fixing grooves, and the grinding roller (6) is slidingly installed in the two fixing grooves, and the first connecting wheel is fixedly sleeved on the swivel seat (5) (7), the top of the top plate (4) is provided with a motor slot, the first motor (8) is fixedly installed in the motor slot, and the output shaft of the first motor (8) is fixedly connected with the second connecting wheel (9) , the second connecting wheel (9) meshes with the first connecting wheel (7), and there are moving holes on one side of the two fixing frames (2), and a screw (10) is slidably installed in the two moving holes, two The ends of the screw rods (10) that are close to each other are fixedly equipped with a placement seat (11), and the sides of the two placement seats (11) that are close to each other are provided with placement grooves, and the tops of the two placement grooves are open, and the two placement grooves A plurality of substrates (13) are placed inside, two grinding rollers (6) are in contact with the hole walls of the substrates (13), and a fan (14) is fixedly installed on one side of the collection box (1), and the fan ( 14) The air inlet pipe is fixedly installed in the collection box (1), the filter screen is fixedly installed in the collection box (1), and the collection pipe is fixedly installed on the top of the collection box (1), and the collection pipe is located on the two placement seats (11 ), two screw rods (10) are screw-mounted with worm gears (15), and the worm gears (15) are rotatably connected to one side of the corresponding fixed frame (2), and both sides of the collection box (1) are fixed Side columns are installed, and both side columns are rotated with rotating rods (16), and the tops of the two rotating rods (16) are fixedly equipped with worms (17), and the worms (17) and corresponding worm gears (15) ) meshing, the bottom ends of the two rotating rods (16) are fixedly installed with the first pulley (18), and the two first pulleys (18) are connected with the same belt (19), the collection box ( 1) A motor slot is opened at the bottom, and a second motor (20) is fixedly installed in the motor slot, and a second pulley (21) is fixedly connected to the output shaft of the second motor (20). The second pulley (21) Engage with belt (19).

2. A PCB for electronic equipment production according to claim 1 Substrate deburring device, its

It is characterized in that circular grooves are formed on one side of the two frame plates (2), fixed blocks are fixedly installed on one side of the two worm wheels (15), and the fixed blocks are slidably connected with the side walls of the corresponding circular grooves.

3. A PCB for electronic equipment production according to claim 1 The substrate deburring device is characterized in that an annular groove is formed on the inner wall of the rotating hole, an auxiliary block is fixedly installed on the rotating seat (5), and the auxiliary block is slidably connected with the side wall of the annular groove.

4. A PCB for electronic equipment production according to claim 1 The substrate deburring device is characterized in that a turning hole is opened on the top of the side column, and the turning rod (16) is rotatably connected in the turning hole.

5. A PCB for electronic equipment production according to claim 1 The substrate burr removal device is characterized in that threaded holes are provided on one side of the two grinding rollers (6), and the same fixing hole is provided on the inner wall of the side where the two fixing grooves are close to each other, and a fixed hole is fixed in the fixing hole. The outer rings of the two bearings and the inner rings of the two bearings are fixedly connected with screw rods (22). On the inner walls of the two fixing grooves, the other ends of the two screw mandrels (22) are all fixedly installed with the first bevel gear (23).

6. A PCB for electronic equipment production according to claim 5 The base material burr removal device is characterized in that a connecting hole is opened on the top inner wall of the fixing hole, and a connecting rod (24) is rotatably connected in the connecting hole, and the top end of the connecting rod (24) extends to the bottom of the rotating seat (5). The outer side is fixedly equipped with a control seat (25), the control seat (25) is rotatably connected to the top of the swivel seat (5), and the bottom end of the connecting rod (24) is fixedly equipped with a second bevel gear (26), the second bevel gear (26) meshes with the two first bevel gears (23).

7. A PCB for electronic equipment production according to claim 1 The substrate deburring device is characterized in that a moving groove is provided on the inner wall of the fixed groove, and a mounting block is fixedly installed on the grinding roller (6), and the mounting block is slidingly connected with the inner wall of the moving groove.

8. A PCB for electronic equipment production according to claim 1 The substrate burr removal device is characterized in that two connecting grooves are opened on the top of the collection box (1), and square blocks are fixedly installed on the bottom of the two placement seats (11), and the square blocks are slidably connected to the corresponding connecting slots. in the slot.