CN213106957U

CN213106957U - Double-sided deburring device for circuit board

Info

Publication number: CN213106957U
Application number: CN202022074817.7U
Authority: CN
Inventors: 夏东
Original assignee: Sichuan Ruijiexin Electronic Co ltd
Current assignee: Sichuan Ruijiexin Electronic Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-05-04
Anticipated expiration: 2030-09-21

Abstract

The utility model discloses a two-sided burring device for circuit board, it includes portal frame (1), set up logical groove (2) on portal frame (1) crossbeam, it is vice to be provided with the screw-nut that is located logical groove (2) top on the crossbeam, the bottom of screw-nut pair's nut (20) has set firmly connecting rod (3), connecting rod (3) run through logical groove (2) and set up, the extension of connecting rod (3) is served and is welded flat board (4) of vertical setting, all weld backup pad (5) on the front and back end of flat board (4), tang (6) have all been seted up to the inboard of two backup pad (5), set up mutually around two tang (6), the bottom of portal frame (1) crossbeam is provided with burr that is located backup pad (5) right side strikes off mechanism (7). The utility model has the advantages that: compact structure, improved burr removal efficiency, reduced labor intensity of workers and simple operation.

Description

Double-sided deburring device for circuit board

Technical Field

The utility model relates to a technical field of circuit board burring, especially a two-sided burring device for circuit board.

Background

The circuit board is an indispensable important component in electronic equipment, the manufacturing process of the circuit board uses a circuit substrate as a raw material, and the circuit board is manufactured by a flattening process, an outer edge polishing process, an upper and lower deburring process, an acid cleaning process, an etching process and the like in sequence, wherein the upper and lower deburring aims at polishing the upper and lower end faces of the circuit board so as to remove burrs on the upper and lower surfaces of the circuit board, further scratch between the circuit board and the circuit board when the circuit board is stacked, and the purpose of protecting the appearance quality of the circuit board is achieved.

The existing method for deburring the upper and lower surfaces of the circuit board is that a worker faces the top surface of the circuit board upwards and fixes a tool on a machine table, then the top surface of the circuit board is polished by a grinding wheel of a vertical grinding machine, the polished surface of the circuit board faces downwards and the tool is fixed on the machine table after polishing, the bottom surface of the circuit board can be polished by repeating the above operations, although the operation method can remove burrs on the upper and lower surfaces of the circuit board, the end surface of the circuit board needs to be turned over and fixed by the tool after polishing, so that the upper and lower end surfaces of the circuit board can be polished by the tool twice in total, the labor intensity of the worker is increased undoubtedly, and the deburring efficiency is reduced simultaneously. In addition, the area of the circuit board is large, the area of the grinding wheel is small, the movement stroke of the grinding wheel is increased, and the burr removing efficiency is further reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a compact structure, improve burr removal efficiency, alleviate workman intensity of labour, easy operation's two-sided burring device for circuit board.

The purpose of the utility model is realized through the following technical scheme: the utility model provides a two-sided burring device for circuit board, it includes the portal frame, sets up the logical groove on the portal frame crossbeam, is provided with the screw-nut pair that is located logical groove top on the crossbeam, and the bottom of the vice nut of screw-nut has set firmly the connecting rod, and the connecting rod runs through logical groove setting, and the extension of connecting rod is served and is welded the flat board of vertical setting, and all welded the backup pad on the flat front and back end, and the tang has all been seted up to the inboard of two backup pads, and two tangs set up mutually, the bottom of portal frame crossbeam is provided with the burr scraping mechanism that is located the backup pad right side, burr scraping mechanism includes the riser, has seted up the cell body on the riser, and the cell body sets up mutually with the region that two tangs formed mutually, is provided with upper surface burr scraping device and lower surface burr scraping device that are located the, The vertical plate comprises a rotating plate, a cutter, a hinge seat A and a hinge seat B, wherein the hinge seat A and the hinge seat B are fixedly arranged on a vertical plate, the hinge seat A is arranged above the hinge seat B, one end of the rotating plate is hinged to the hinge seat A, the cutter is welded to the other end of the rotating plate, the cutting edge of the cutter is inclined leftwards and downwards, a cylinder barrel of the cylinder is hinged to the hinge seat B, a connecting rod is hinged to a piston rod of the cylinder, and the other end of the connecting rod is hinged to the rotating plate.

The lead screw nut pair comprises a rack, a speed reducer, a lead screw, a nut and a motor which are fixedly arranged on a portal frame cross beam, the rack is erected above the through groove, the lead screw is horizontally arranged, two ends of the lead screw are rotatably arranged in the rack, the nut is in threaded connection with the lead screw, an output shaft of the motor is in coupling connection with an input shaft of the speed reducer, an output shaft of the speed reducer is in coupling connection with one end of the lead screw, a unthreaded hole is formed in the nut, a polished rod penetrates through the unthreaded hole, and two ends of the polished rod are fixedly arranged on the rack.

The upper surface burr scraping device and the lower surface burr scraping device are arranged in an up-and-down symmetrical mode about the groove body.

The longitudinal spacing between the two spigots is equal to or greater than the width of the circuit board.

And one end of the rotating plate is provided with a pin shaft which is arranged on the hinge seat A.

The width of the groove body is larger than that of the circuit board.

The utility model has the advantages of it is following: the utility model discloses compact structure, improvement burr removal efficiency, alleviate workman intensity of labour, easy operation.

Drawings

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

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is a schematic structural view of a burr scraping mechanism;

FIG. 4 is a schematic view of a rotating plate;

FIG. 5 is a schematic view of the mounting of the circuit board;

fig. 6 is a schematic diagram of positioning a circuit board.

Detailed Description

The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:

as shown in figures 1-4, a double-sided deburring device for a circuit board comprises a portal frame 1 and a through groove 2 arranged on a cross beam of the portal frame 1, a screw-nut pair positioned above the through groove 2 is arranged on the cross beam, a connecting rod 3 is fixedly arranged at the bottom of a nut 20 of the screw-nut pair, the connecting rod 3 penetrates through the through groove 2, a flat plate 4 longitudinally arranged is welded on the extending end of the connecting rod 3, supporting plates 5 are welded on the front end and the rear end of the flat plate 4, rabbets 6 are respectively arranged on the inner sides of the two supporting plates 5, the two rabbets 6 are oppositely arranged in front and at the rear, a burr scraping mechanism 7 positioned on the right side of the supporting plate 5 is arranged at the bottom of the cross beam of the portal frame 1, the burr scraping mechanism comprises a vertical plate 8, a groove body 9 is arranged on the vertical plate 8, the groove body 9 is oppositely arranged with an area formed by the two rabbets 6, an, the upper surface burr scraping device comprises an air cylinder 10, a rotating plate 11, a cutter 13, a hinge seat A14 and a hinge seat B15, wherein the hinge seat A14 and the hinge seat B15 are fixedly arranged on the vertical plate 8, the hinge seat A14 is arranged above the hinge seat B15, one end of the rotating plate 11 is hinged to the hinge seat A14, the cutter 13 is welded to the other end of the rotating plate 11, the cutting edge of the cutter 13 is obliquely arranged leftwards and downwards, a cylinder barrel of the air cylinder 10 is hinged to the hinge seat B15, a piston rod of the air cylinder 10 is hinged to a connecting rod 16, and the other end of the connecting rod 16 is hinged to the rotating plate 11.

The screw-nut pair comprises a frame 17, a speed reducer 18, a screw rod 19, a nut 20 and a motor 21 which are fixedly arranged on a cross beam of a portal frame 1, the frame 17 is erected above the through groove 2, the screw rod 19 is horizontally arranged, two ends of the screw rod 19 are rotatably arranged in the frame 17, the nut 20 is in threaded connection with the screw rod 19, an output shaft of the motor 21 is in coupling connection with an input shaft of the speed reducer 18, an output shaft of the speed reducer 18 is in coupling connection with one end of the screw rod 19, a unthreaded hole is formed in the nut 20, a polished rod 22 penetrates through the unthreaded hole, and two ends of the polished rod 22 are fixedly arranged on the frame.

The upper surface burr scraping device and the lower surface burr scraping device are arranged in an up-and-down symmetrical mode about the groove body 9. The longitudinal spacing between the two spigots 6 is equal to or greater than the width of the circuit board. One end of the rotating plate 11 is provided with a pin shaft 23, and the pin shaft 23 is installed on the hinge seat A14. The width of the slot 9 is larger than that of the circuit board 24.

The working process of the utility model is as follows: mounting the circuit board, namely, a worker inserts the front and rear edges of the circuit board 24 into the two rabbets 6 from right to left respectively as shown in fig. 5; then, the motor 21 is turned on, the motor 21 drives the screw rod 19 to rotate, the nut 20 moves rightwards along the screw rod 19, the nut 20 drives the circuit board 24 to move rightwards, and when the circuit board 24 enters between the cutters 13 of the upper surface burr scraping device and the lower surface burr scraping device, a worker turns off the motor 21; then the worker operates the cylinder 10 to retract the piston rod thereof, the piston rod drives the connecting rod 16 to rotate, the connecting rod 16 drives the rotating plate 11 to rotate around the hinge seat a14, the cylinder 10 is closed when the blade of the cutting knife 13 of the upper surface burr scraping device is observed to contact with the top surface of the circuit board 24, the cylinder 10 is closed when the blade of the cutting knife 13 of the lower surface burr scraping device is observed to contact with the bottom surface of the circuit board 24, and the positioning of the circuit board is completed as shown in fig. 6; the workman opens motor 21 again afterwards, and motor 21 drives nut 20 and moves right, and nut 20 drives circuit board 24 and continues to be rectilinear motion right, and in the motion process, because the cutting edge of two cutters 13 contacts with the upper and lower surface of circuit board 24 respectively all the time, the cutting edge strikes off the burr on its two sides along the length direction of circuit board 24, can accomplish the getting rid of all burrs on the circuit board after the circuit board passes through cutter 13 completely. Compared with the traditional deburring method, the circuit board is not required to be fixed by twice tooling, so that the deburring efficiency is greatly improved, and the labor intensity of workers is reduced.

In addition, can accomplish thoroughly striking off of burr on two faces through once the feed, compare the mode that the burr was removed to the tradition adoption emery wheel, shorten the burring and used the time, further improvement burr removal efficiency.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The utility model provides a two-sided burring device for circuit board which characterized in that: the device comprises a portal frame (1) and a through groove (2) arranged on a cross beam of the portal frame (1), wherein a screw-nut pair positioned above the through groove (2) is arranged on the cross beam, a connecting rod (3) is fixedly arranged at the bottom of a nut (20) of the screw-nut pair, the connecting rod (3) penetrates through the through groove (2), a flat plate (4) which is longitudinally arranged is welded on an extending end of the connecting rod (3), supporting plates (5) are welded on the front end and the rear end of the flat plate (4), rabbets (6) are respectively arranged on the inner sides of the two supporting plates (5), the front ends and the rear ends of the two rabbets (6) are oppositely arranged, a burr scraping mechanism (7) positioned on the right side of the supporting plates (5) is arranged at the bottom of the cross beam of the portal frame (1), the burr scraping mechanism comprises a vertical plate (8), a groove body (9) is arranged, an upper surface burr scraping device and a lower surface burr scraping device which are respectively positioned on the upper side and the lower side of a groove body (9) are arranged on the left end face of a vertical plate (8), the upper surface burr scraping device comprises an air cylinder (10), a rotating plate (11), a cutter (13), a hinge seat A (14) and a hinge seat B (15), the hinge seat A (14) and the hinge seat B (15) are fixedly arranged on the vertical plate (8), the hinge seat A (14) is arranged above the hinge seat B (15), one end of the rotating plate (11) is hinged on the hinge seat A (14), the cutter (13) is welded at the other end of the rotating plate (11), the cutting edge of the cutter (13) is downwards inclined to the left side, the air cylinder (10) is hinged on the hinge seat B (15), a connecting rod (16) is hinged on a piston rod of the air cylinder (10), and the other end of the connecting rod (16.

2. A double-sided deburring apparatus for circuit boards as claimed in claim 1, characterized in that: the screw-nut pair comprises a frame (17), a speed reducer (18), a screw rod (19), a nut (20) and a motor (21) which are fixedly arranged on a cross beam of a portal frame (1), the frame (17) is erected above the through groove (2), the screw rod (19) is horizontally arranged, two ends of the screw rod (19) are rotatably arranged in the frame (17), the nut (20) is in threaded connection with the screw rod (19), an output shaft of the motor (21) is connected with an input shaft of the speed reducer (18) through a coupler, an output shaft of the speed reducer (18) is connected with one end of the screw rod (19) through a coupler, a unthreaded hole is formed in the nut (20), a polished rod (22) penetrates through the unthreaded hole, and two ends of the polished rod (22) are fixedly arranged on the frame (17).

3. A double-sided deburring apparatus for circuit boards as claimed in claim 1, characterized in that: the upper surface burr scraping device and the lower surface burr scraping device are arranged in an up-and-down symmetrical mode about the groove body (9).

4. A double-sided deburring apparatus for circuit boards as claimed in claim 1, characterized in that: the longitudinal distance between the two spigots (6) is equal to or larger than the width of the circuit board.

5. A double-sided deburring apparatus for circuit boards as claimed in claim 1, characterized in that: one end of the rotating plate (11) is provided with a pin shaft (23), and the pin shaft (23) is arranged on the hinge seat A (14).

6. A double-sided deburring apparatus for circuit boards as claimed in claim 1, characterized in that: the width of the groove body (9) is larger than that of the circuit board (24).