CN211047409U

CN211047409U - PCB multiply wood drilling explosion-proof equipment

Info

Publication number: CN211047409U
Application number: CN201921530503.4U
Authority: CN
Inventors: 岳勇
Original assignee: Anhui Guangfeng Wood Industry Co ltd
Current assignee: Anhui Guangfeng Wood Industry Co ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-07-17
Anticipated expiration: 2029-09-16

Abstract

The utility model relates to a and PCB multiply wood drilling technical field, and disclose a PCB multiply wood drilling explosion-proof equipment, comprises a workbench, the screw has all been seted up to the left and right sides of workstation top surface, the internal surface screw thread of screw has cup jointed the bolt of screwing, the surface activity at the bolt middle part of screwing has cup jointed tight piece, workstation top surface middle part fixed mounting has the backing plate, the top surface of backing plate is equipped with the PCB multiply wood, the top of PCB multiply wood is equipped with the arm, the middle part fixed mounting of arm bottom surface has the brill sword. This PCB multiply wood drilling explosion-proof equipment through the bottom screw thread installation at the arm compress tightly the pole, and compress tightly pole upper portion and be equipped with the spring, and when driling, compress tightly the pole and contact with the PCB multiply wood and compress tightly, has enlarged the area of being pressed of PCB multiply wood, has reduced the concentrated stress of face, and the PCB multiply wood is difficult for taking place the perk when the drill bit drills, does not separate between layer and the layer, has avoided the condition of exploding the board, has improved the quality of PCB multiply wood production.

Description

PCB multiply wood drilling explosion-proof equipment

Technical Field

The utility model relates to a PCB multiply wood drilling technical field specifically is a PCB multiply wood drilling explosion-proof equipment.

Background

The PCB is called printed circuit board, multilayer printed board, that is, printed board with more than two layers, which is composed of connecting wires on several layers of insulating substrates and bonding pads for assembling and welding electronic elements, and electronic devices are installed by drilling holes on the PCB.

The PCB multiply wood of current is when drilling, places the PCB multiply wood on the platform, punches through automatic drilling machine, because the thickness of PCB multiply wood is general very little, and the drilling that needs is little, and the drill bit design of brill sword is equally little, and the PCB multiply wood is little with drill bit area of contact, and the pressure that the PCB multiply wood receives is big, and stress is concentrated relatively, and the district of drilling very easily takes place along the board phenomenon of exploding of hole week, damages the PCB multiply wood, and it is inconvenient to use.

In addition, because the PCB multiply wood is the board synthesis of a plurality of different materials, the coefficient of thermal expansion of different materials is different, and upper plate face temperature is high when drilling, and thermal stress is uneven respectively between the PCB multiply wood, and thermal energy and separation between layer and layer finally appear exploding the board, and when the piece that produces during drilling blocked up in the hole, receive drill bit circumference extrusion also can arouse around the PCB multiply wood aperture and explode the board, cause the damage of PCB multiply wood.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a PCB multiply wood drilling explosion-proof equipment possesses the advantage that reduces the too big and avoid local high temperature and the drilling jam of drilling department local pressure to arouse the board explosion phenomenon, has solved the problem mentioned in the above-mentioned background art.

The utility model provides a following technical scheme: an explosion-proof device for drilling a PCB multi-layer board comprises a workbench, wherein screw holes are formed in the left side and the right side of the top surface of the workbench, the inner surface of the screw hole is in threaded sleeve connection with a screwing bolt, the outer surface of the middle part of the screwing bolt is movably in sleeve connection with a clamping block, a backing plate is fixedly arranged in the middle of the top surface of the workbench, a PCB multilayer board is arranged on the top surface of the backing plate, a mechanical arm is arranged above the PCB multilayer board, a drill is fixedly arranged in the middle of the bottom surface of the mechanical arm, the middle part of the drill cutter is fixedly provided with a fan, the bottom of the mechanical arm is provided with two mounting grooves positioned at two sides of the drill cutter, the inner surface of the mounting groove is sheathed with a sleeve in a threaded manner, the top of the inner cavity of the sleeve is fixedly connected with the upper end of a spring, the lower extreme fixedly connected with of spring compresses tightly the upper end of pole, the lower extreme of compressing tightly the pole passes the sleeve pipe and extends to the sheathed tube outside.

Preferably, the number of the clamping blocks is four, the four clamping blocks are distributed on the periphery of the workbench, and the clamping blocks are vertically clamped with the PCB multi-layer board.

Preferably, the upper parts of the mounting groove and the outer surface of the sleeve are both provided with threads, and the diameter of the notch of the mounting groove is larger than that of the sleeve.

Preferably, the diameter of the top end of the pressing rod is larger than the diameter of the rod body of the pressing rod, and the bottom end of the pressing rod is circular.

Preferably, the top surface of the clamping block is provided with a clamping groove, and the width of the clamping groove is larger than the diameter of the lower end face of the screwed bolt.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this PCB multiply wood drilling explosion-proof equipment compresses tightly the pole through the bottom screw thread installation at the arm, and it is equipped with the spring to compress tightly pole upper portion, and when driling, the pole and the contact of PCB multiply wood compress tightly, has enlarged the area of being pressed of PCB multiply wood, has reduced the concentrated stress of face, and the drill bit of brill sword is difficult for taking place the perk when drilling the PCB multiply wood, does not separate between layer and the layer, has avoided the condition of exploding the board, has improved the quality of PCB multiply wood production.

2. This PCB multiply wood drilling explosion-proof equipment, through a fan of mid-mounting connection at the drill bit, receive the drill bit rotation effect and drive the fan and rotate, high-speed pivoted fan blows off the piece that drilling produced when reducing the temperature of drill hole department, has effectively avoided drilling jam and drilling department high temperature, has avoided the PCB multiply wood to take place to explode the board, and simple structure avoids additionally setting up the fan, has improved the stability of PCB multiply wood drilling, facilitates the use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the workbench according to the present invention;

figure 3 shows the structure of the utility modelFIG. 1 shows a schematic view of aThe structure at A is enlarged;

FIG. 4 is a schematic view of a fan according to the present invention;

fig. 5 is a schematic view of the connection between the clamping block and the tightening bolt according to the present invention.

In the figure: 1. a work table; 2. a screw hole; 3. screwing the bolt; 4. a clamping block; 5. a base plate; 6. a PCB multilayer board; 7. a mechanical arm; 8. drilling a cutter; 9. a sleeve; 10. a spring; 11. a hold down bar; 12. a fan; 13. a card slot; 14. and (4) mounting the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, an explosion-proof device for drilling a PCB multi-layer board comprises a workbench 1, wherein screw holes 2 are respectively formed on the left side and the right side of the top surface of the workbench 1, screwing bolts 3 are sleeved on the inner surface threads of the screw holes 2, the lower parts of the screwing bolts 3 are in threaded connection with the screw holes 2 in an unclamped state, clamping blocks 4 are movably sleeved on the outer surfaces of the middle parts of the screwing bolts 3, a backing plate 5 is fixedly installed in the middle part of the top surface of the workbench 1, a PCB multi-layer board 6 is arranged on the top surface of the backing plate 5, a mechanical arm 7 is arranged above the PCB multi-layer board 6, the mechanical arm 7 is of an existing structure and is specifically connected with a computer control end and can perform accurate positioning drilling according to a preset route, a power device for driving the drill 8 to rotate is arranged in the inner part of the workbench, a drill, guarantee that 8 drilling processes of brill sword keep one end distance with PCB multiply wood 6 all the time, do not touch with PCB multiply wood 6, two mounting grooves 14 that are located 8 both sides of brill sword are seted up to the bottom of arm 7, and the internal surface screw thread of mounting groove 14 has cup jointed sleeve pipe 9, the upper end of the top fixedly connected with spring 10 of sleeve pipe 9 inner chamber, the lower extreme fixedly connected with of spring 10 compresses tightly the upper end of pole 11, and the lower extreme of compressing tightly pole 11 passes sleeve pipe 9 and extends to the outside of sleeve pipe 9.

Further, the number of the clamping blocks 4 is four, the four clamping blocks 4 are distributed on the periphery of the workbench 1, and the clamping blocks 4 and the PCB multi-layer board 6 are vertically clamped.

Further, the upper parts of the outer surfaces of the mounting groove 14 and the sleeve 9 are both provided with threads, and the diameter of the notch of the mounting groove 14 is larger than that of the sleeve 9.

Further, the diameter of the top end of the pressing rod 11 is larger than the rod body diameter of the pressing rod 11, the bottom end of the pressing rod 11 is circular, the bottom end of the pressing rod 11 is close to the drill 8 and does not touch the drill, and the fan 12 is always higher than the bottom end of the pressing rod 11.

Further, the air conditioner is provided with a fan,the top surface of the clamping block 4 is provided with a clamping groove 13,the width of the clamping groove 13 is larger than the diameter of the lower end face of the screwing bolt 3.

The working principle is as follows: the PCB multi-layer board 6 is horizontally placed on the top surface of a base plate 5 on a workbench 1, one end of a clamping block 4 is adjusted to be only close to the PCB multi-layer board 6 vertically, a screwing bolt 3 is screwed, the PCB multi-layer board 6 is fixed and does not deviate, the bottom end of the screwing bolt 3 is screwed into a screw hole 2, a drill 8 is inserted and installed at the lower end of a mechanical arm 7, a sleeve thread provided with a pressing rod 11 is sleeved in a mounting groove 14 of the mechanical arm 7, a control program is started, the mechanical arm 7 acts according to a route set by a computer program, the mechanical arm 7 moves downwards, the drill 8 and a fan 12 rotate simultaneously, the mechanical arm 7 continues to move downwards, the pressing rod 11 presses the PCB multi-layer board 6, the drill 8 starts to drill along with the drill, a spring 10 is compressed along with the downward drilling of the drill 8, generated scraps.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a PCB multiply wood drilling explosion-proof equipment, includes workstation (1), its characterized in that: screw holes (2) are formed in the left side and the right side of the top surface of the workbench (1), a screw bolt (3) is sleeved on the inner surface threads of the screw hole (2), a clamping block (4) is sleeved on the outer surface of the middle part of the screw bolt (3), a backing plate (5) is fixedly installed in the middle of the top surface of the workbench (1), a PCB (printed circuit board) multi-layer plate (6) is arranged on the top surface of the backing plate (5), a mechanical arm (7) is arranged above the PCB multi-layer plate (6), a drill cutter (8) is fixedly installed in the middle of the bottom surface of the mechanical arm (7), a fan (12) is fixedly installed in the middle of the drill cutter (8), two mounting grooves (14) located on two sides of the drill cutter (8) are formed in the bottom of the mechanical arm (7), a sleeve (9) is sleeved on the inner surface threads of the mounting, the lower end of the spring (10) is fixedly connected with the upper end of a pressing rod (11), and the lower end of the pressing rod (11) penetrates through the sleeve (9) and extends to the outside of the sleeve (9).

2. The PCB multi-layer board drilling explosion-proof device according to claim 1, wherein: the number of the clamping blocks (4) is four, the four clamping blocks (4) are distributed on the periphery of the workbench (1), and the clamping blocks (4) and the PCB multi-layer board (6) are vertically clamped.

3. The PCB multi-layer board drilling explosion-proof device according to claim 1, wherein: the upper parts of the outer surfaces of the mounting groove (14) and the sleeve (9) are both provided with threads, and the diameter of the notch of the mounting groove (14) is larger than that of the sleeve (9).

4. The PCB multi-layer board drilling explosion-proof device according to claim 1, wherein: the diameter of the top end of the pressing rod (11) is larger than the diameter of the rod body of the pressing rod (11), and the bottom end of the pressing rod (11) is circular.

5. The PCB multi-layer board drilling explosion-proof device according to claim 1, wherein: the top surface of the clamping block (4) is provided with a clamping groove (13), and the width of the clamping groove (13) is larger than the diameter of the lower end face of the screwed bolt (3).