CN212635998U - Pressure foot device for drilling PCB of precise printed circuit board - Google Patents

Abstract

The utility model provides a pressure foot device for precision printed circuit board PCB drilling, the utility model relates to the technical field of drilling auxiliary equipment; the four corners of the connecting seat are respectively provided with a cavity, a plurality of springs are fixed on the inner side wall of the upper side of the cavity at equal intervals, the lower ends of the springs are fixed on the upper surface of the movable plate at equal intervals, the center of the lower surface of the movable plate is fixed with a connecting rod, the lower ends of the connecting rod are fixed on the upper surface of the pressing plate, the center of the pressing plate is provided with a square hole, the upper side of the square hole is provided with a drilling die holder, the outer edge of the drilling die holder is fixedly connected with the lower side wall of the connecting seat through bolts, the center of the drilling die holder is provided with a guide hole which is arranged at the lower side of the drill bit, the outer side of, in the drilling process of the drill bit of the drilling machine, dust and chips can be cleaned without cleaning again in the later period, so that troubles cannot be brought to practical use.

Description

Pressure foot device for drilling PCB of precise printed circuit board

Technical Field

The utility model relates to a drilling auxiliary assembly technical field, concretely relates to accurate printed wiring board PCB drilling is with pressure foot device.

Background

In the manufacturing process of the PCB, a flow is used for drilling the PCB, in order to meet technological requirements, such as reduction of burrs generated on the surface and the hole wall of the PCB, concentricity of a pilot bit entering the PCB, self-cleaning of an auxiliary bit and the like, a cover plate is added on the surface of the PCB, and during drilling, the joint degree between the cover plate and the PCB and between the PCB and the PCB can directly influence the drilling precision and the service life of a cutter; therefore, each drilling machine relates to a pressure foot device, and the existing pressure foot device has simpler functions and is difficult to clean up scraps and dust generated by drilling, thereby bringing great troubles to practical use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a reasonable in design, convenient to use's accurate printed wiring board PCB pressure foot device for drilling, at the in-process of drilling machine drill bit drilling, can clear up dust and piece, need not the later stage and clear up once more to can not bring the trouble for in-service use.

In order to achieve the above object, the utility model adopts the following technical scheme: the drilling machine comprises a connecting seat and a pressing cylinder, wherein the pressing cylinder is connected to both sides of the upper side wall of the connecting seat and connected with a drilling machine, and a drill bit of the drilling machine is inserted into a through hole of the connecting seat; the drilling jig comprises a connecting seat, a connecting rod, springs, a movable plate, connecting pipes, absorbing covers, a telescopic pipe and a drilling jig seat, wherein cavities are formed in four corners of the connecting seat, a plurality of springs are fixed on the inner side wall of the upper side of each cavity at equal intervals, the lower ends of the springs are fixed on the upper surface of the movable plate at equal intervals, the movable plate is arranged in each cavity, the connecting rod is fixed at the center of the lower surface of the movable plate, the lower ends of the connecting rods penetrate through the lower side wall of the cavities and are fixed on the upper surface of the pressing plate, a square hole is formed in the center of the pressing plate, the drilling jig seat is arranged on the upper side of the square hole, the outer edge of the drilling jig seat is fixedly connected with the lower side wall of the connecting seat through bolts, a guide hole is formed in the center of the drilling jig seat and is arranged on, and the absorption cover is communicated with the connecting pipe, one side of the connecting pipe is inserted with a telescopic pipe, and the other end of the telescopic pipe penetrates through one side wall of the connecting seat and then is connected with an external dust collector.

Furthermore, an anti-skid ring is fixed on the lower surface of the pressing plate.

Furthermore, support rods are fixed at four corners of the lower side of the outer ring wall of the connecting pipe, and the lower ends of the support rods are in contact with the drill jig base.

Further, the upside equidistance of the outer rampart of connecting pipe be fixed with a plurality of connecting pieces, all have No. two springs through bolted connection on the connecting piece, the upper end of No. two springs is fixed on the lower surface of fixed plate, the fixed plate cover is established at the downside of drill bit, the equiangular is fixed with a plurality of gag lever posts on the lateral wall of fixed plate, the other end of gag lever post is fixed respectively on the inside wall of connecting seat.

Further, the inside downside of No. two springs be equipped with the sleeve pipe, the sheathed tube lower extreme is contradicted at the upside of connecting piece, the sheathed tube inside is inserted and is equipped with the inserted bar, the upper end of inserted bar and the lower fixed surface of fixed plate are connected.

After the structure is adopted, the beneficial effects of the utility model are that: a precision printed wiring board PCB drilling is with pressure foot device, at the in-process of drilling machine drill bit drilling, can clear up dust and piece, need not the later stage and clear up once more to can not bring the trouble for in-service use, the utility model has the advantages of set up rationally, the cost of manufacture is low.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is an enlarged view of a portion B in fig. 1.

Fig. 4 is a schematic structural diagram of the middle pressing plate of the present invention.

Description of reference numerals:

the device comprises a connecting seat 1, a pressing cylinder 2, a pressing plate 3, a connecting rod 4, a first spring 5, a movable plate 6, a connecting pipe 7, an absorption cover 8, an extension pipe 9, a drill jig seat 10, a cavity 11, a square hole 12, a guide hole 13, an anti-skidding ring 14, a supporting rod 15, a connecting piece 16, a second spring 17, a fixing plate 18, a limiting rod 19, a sleeve 20 and an insert rod 21.

The specific implementation mode is as follows:

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.

As shown in fig. 1 to 4, the following technical solutions are adopted in the present embodiment: the drilling machine comprises a connecting seat 1 and a pressing cylinder 2, wherein the pressing cylinder 2 is connected to both sides of the upper side wall of the connecting seat 1, the pressing cylinder 2 is connected with a drilling machine, and a drill bit of the drilling machine is inserted into a through hole of the connecting seat 1; the device also comprises a pressing plate 3, a connecting rod 4, a first spring 5, a movable plate 6, a connecting pipe 7, an absorption cover 8, a telescopic pipe 9 and a drilling jig base 10, wherein cavities 11 are arranged at four corners of the connecting base 1, a plurality of first springs 5 are welded and fixed on the inner side wall of the upper side of the cavities 11 at equal intervals, the lower ends of the first springs 5 are welded and fixed on the upper surface of the movable plate 6 at equal intervals, the movable plate 6 is arranged in the cavities 11, the connecting rod 4 is welded and fixed at the center of the lower surface of the movable plate 6, the lower ends of the connecting rods 4 penetrate through the lower side wall of the cavities 11 and then are fixed on the upper surface of the pressing plate 3 through bolts, an anti-slip ring 14 is fixedly adhered on the lower surface of the pressing plate 3 to increase the friction force between the pressing plate 3 and a PCB plate, a square hole 12 is arranged at the center of the pressing plate 3, a guide hole 13 is arranged at the center of the drilling die holder 10, the guide hole 13 is arranged at the lower side of the drill bit, a connecting pipe 7 is sleeved at the outer side of the lower end of the drill bit, the connecting pipe 7 is connected end to end in a circular shape, a plurality of absorption covers 8 are inserted at equal angles at the lower side of the outer annular wall of the connecting pipe 7, the absorption covers 8 are communicated with the connecting pipe 7, a telescopic pipe 9 is inserted at the left side of the connecting pipe 7, the other end of the telescopic pipe 9 passes through one side wall of the connecting seat 1 and is connected with an external dust collector, supporting rods 15 are welded and fixed at four corners of the lower side of the outer annular wall of the connecting pipe 7, the lower ends of the supporting rods 15 are in contact with the drilling die holder 10 to prevent the absorption covers 8 from being blocked, a plurality of connecting pieces 16 are welded and fixed at equal intervals at the upper side of the outer annular wall of, the lower extreme of sleeve pipe 20 is contradicted at the upside of connecting piece 16, sleeve pipe 20's inside is inserted and is equipped with inserted bar 21, the upper end of inserted bar 21 and the lower surface welded fastening of fixed plate 18, increase No. two spring 17's stability, the downside at the drill bit is established to fixed plate 18 cover, the equidistance welded fastening has several gag lever post 19 on the lateral wall of fixed plate 18, gag lever post 19's the other end welded fastening respectively is on the inside wall of connecting seat 1, can carry out spacingly when connecting pipe 7, do not hinder and dismantle connecting pipe 7.

The working principle of the specific embodiment is as follows: when the device is used, a PCB is placed on a platform of a drilling machine, then the compressing cylinder 2 is started, the compressing cylinder 2 drives the connecting seat 1 to move downwards until the pressing plate 3 is pressed onto the PCB by the connecting seat 1, at the moment, the drill seat 10 is embedded into the square hole 12 in the pressing plate 3 and is abutted against the PCB, then the drilling machine is started, the PCB is punched through the drill, an external dust collector is started in the punching process, dust and debris generated by punching are pumped into the connecting pipe 7 through the absorbing cover 8 and then discharged through the telescopic pipe 9, when the connecting pipe 7 needs to be cleaned, the drill seat 10 is firstly taken down, the connecting pipe 7 is pushed downwards due to the elasticity of the spring, so that the connecting pipe 7 falls to the lower side of the connecting seat 1, then the connecting pipe 16 and a bolt on the second spring 17 are disassembled, after cleaning, the connecting pipe 16 is respectively connected with the second spring 17, finally, the drill jig seat 10 is arranged on the lower side of the connecting seat 1, the connecting pipe 7 is pushed upwards through the connecting seat 1, the second spring 17 is compressed, when the drill jig seat is used, the supporting rod 15 can be kept in contact with the drill jig seat 10, the absorption cover 8 is not blocked when being located on the upper side of the guide hole 13, and dust collection is facilitated.

After adopting above-mentioned structure, this embodiment's beneficial effect is as follows:

1. during the drilling process of the drill bit of the drilling machine, dust and debris can be cleaned without cleaning again in the later period, so that troubles are not brought to practical use;

2. the connecting pipe 7 is sleeved on the outer side of the drill bit, the connecting pipe 7 is fixed on the lower surface of the fixing plate 18 through the second spring 17, and the connecting pipe 7 can be conveniently detached while the use of the connecting pipe 7 is not influenced, so that the cleaning is convenient.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (5)

1. A pressure foot device for drilling a PCB (printed circuit board) of a precise printed circuit board comprises a connecting seat (1) and a pressing cylinder (2), wherein the pressing cylinder (2) is connected to two sides of the upper side wall of the connecting seat (1), the pressing cylinder (2) is connected with a drilling machine, and a drill bit of the drilling machine is inserted into a through hole of the connecting seat (1); the method is characterized in that: the device also comprises a pressing plate (3), connecting rods (4), springs (5), a movable plate (6), connecting pipes (7), an absorbing cover (8), telescopic pipes (9) and a drilling jig base (10), wherein cavities (11) are arranged at four corners of the connecting base (1), a plurality of springs (5) are fixed on the inner side wall of the upper side of each cavity (11) at equal intervals, the lower ends of the springs (5) are fixed on the upper surface of the movable plate (6) at equal intervals, the movable plate (6) is arranged in the cavities (11), the connecting rods (4) are fixed at the centers of the lower surfaces of the movable plates (6), the lower ends of the connecting rods (4) penetrate through the lower side wall of the cavities (11) and then are fixed on the upper surface of the pressing plate (3), square holes (12) are arranged at the centers of the pressing plate (3), the drilling jig base (10) is arranged on the upper side of the square holes (12), and the outer edges of the drilling, the center of drilling die holder (10) is provided with guiding hole (13), guiding hole (13) set up in the downside of drill bit, the outside cover of drill bit lower extreme is equipped with connecting pipe (7), the end to end of connecting pipe (7) is circular setting, the downside isometric of outer rampart of connecting pipe (7) is inserted and is equipped with several and absorbs cover (8), and absorb cover (8) and be linked together the setting with connecting pipe (7), one side of connecting pipe (7) is inserted and is equipped with flexible pipe (9), the other end of flexible pipe (9) is passed behind a lateral wall of connecting seat (1), be connected with outside dust catcher.

2. The pressure foot device for precise printed circuit board PCB drilling according to claim 1, characterized in that: an anti-slip ring (14) is fixed on the lower surface of the pressure plate (3).

3. The pressure foot device for precise printed circuit board PCB drilling according to claim 1, characterized in that: and supporting rods (15) are fixed at four corners of the lower side of the outer ring wall of the connecting pipe (7), and the lower ends of the supporting rods (15) are in contact with the drilling die holder (10).

4. The pressure foot device for precise printed circuit board PCB drilling according to claim 1, characterized in that: connecting pipe (7) outer rampart's upside equidistance be fixed with a plurality of connecting piece (16), all there is No. two spring (17) through bolted connection on connecting piece (16), the upper end of No. two spring (17) is fixed on the lower surface of fixed plate (18), the downside at the drill bit is established in fixed plate (18) cover, the equiangular be fixed with a plurality of gag lever post (19) on the lateral wall of fixed plate (18), the other end of gag lever post (19) is fixed respectively on the inside wall of connecting seat (1).

5. The pressure foot device for precise printed circuit board PCB drilling according to claim 4, characterized in that: the lower side of the interior of the second spring (17) is provided with a sleeve (20), the lower end of the sleeve (20) abuts against the upper side of the connecting piece (16), an insertion rod (21) is inserted into the interior of the sleeve (20), and the upper end of the insertion rod (21) is fixedly connected with the lower surface of the fixing plate (18).

Images