CN214419037U

CN214419037U - Device for drilling positioning hole of printed circuit board

Info

Publication number: CN214419037U
Application number: CN202120385266.8U
Authority: CN
Inventors: 高思; 陈尧; 张涛恒; 吴祥艺
Original assignee: Hangzhou Pengrun Electronics Co ltd
Current assignee: Hangzhou Pengrun Electronics Co ltd
Priority date: 2021-02-21
Filing date: 2021-02-21
Publication date: 2021-10-19
Anticipated expiration: 2031-02-21

Abstract

The application provides a device for being directed at printed circuit board's locating hole drilling relates to the technical field of drilling machine equipment. The utility model provides a device for being directed at locating hole drilling of printed circuit board, comprises a workbench, be provided with the location portion that is used for cooperating the drill bit to use on the workstation, location portion includes open-top's location box, driving screw, first butt piece and second butt piece, driving screw rotates along the width direction of location box and connects in the location box, driving screw's one end is connected with the driving piece, still fixedly connected with sliding shaft along the width direction of location box in the location box, first butt piece and second butt piece threaded connection are on driving screw and sliding connection, first butt piece and second butt piece receive driving screw's drive opposite direction, still be provided with the board of placing that is used for placing printed circuit board along the length direction of location box in the location box. The printed circuit board is more stable in the drilling process by the positioning method.

Description

Device for drilling positioning hole of printed circuit board

Technical Field

The application relates to the technical field of drilling machine equipment, in particular to a device for drilling positioning holes of a printed circuit board.

Background

The printed circuit board is also known as a printed circuit board, and English is abbreviated as PCB. The PCB can be provided with a plurality of positioning holes on the circuit board through a drilling machine in the production process, and the printed circuit board can be installed to a specified position through the positioning holes when the printed circuit board is used subsequently.

The utility model discloses an authorization notice number is CN210233283U Chinese utility model discloses a PCB board drilling machine, comprising a main body, main part one end is provided with a servo motor, and the top of main part is provided with places the seat, the inside of placing the seat is provided with first hob, the outside of first hob is provided with the fly leaf, the top of fly leaf is provided with places the board, the inside of placing the board is provided with the dead lever, the outside of dead lever is provided with the stripper plate, the dead lever outside is located places and is provided with the spring between board and the stripper plate. In the using process of the drilling machine, a printed circuit board to be drilled is placed on the placing plate, the extrusion plate is abutted against the printed circuit board under the action of the spring, so that the position of the printed circuit board is fixed, and then drilling is started.

In view of the above-mentioned related art, the applicant believes that the drill bit may cause the printed circuit board to shake during the drilling process of the drilling machine. In the related art, the fixing mode of fixing the printed circuit board only by abutting the spring against the extrusion plate is unstable, and the printed circuit board is easy to shake in the drilling process, so that the drilling is not accurate.

SUMMERY OF THE UTILITY MODEL

In order to promote the stability of drilling in-process printed circuit board, this application provides a device that is used for the locating hole drilling to printed circuit board.

The application provides a device for being directed at locating hole drilling of printed circuit board has adopted following technical scheme:

a device for drilling a positioning hole of a printed circuit board comprises a workbench and a drilling part arranged on the workbench, wherein the workbench is provided with a positioning part for matching the drilling part, the positioning part comprises a positioning box with an open top, a driving screw, a first abutting block and a second abutting block, the driving screw is rotatably connected in the positioning box along the width direction of the positioning box, one end of the driving screw penetrates through the side wall of the positioning box and is connected with a driving part, a guide shaft is fixedly connected in the positioning box along the width direction of the positioning box, the first abutting block is provided with a first threaded hole, the second abutting block is provided with a second threaded hole, the thread turning directions of the first threaded hole and the second threaded hole are opposite, the first threaded hole and the second threaded hole are both in thread fit with the driving screw, and the first abutting block and the second abutting block are also provided with sliding holes, the two sliding holes are connected with the sliding shaft in a sliding mode, and a placing plate used for placing the printed circuit board is further arranged in the positioning box along the length direction of the positioning box.

Through adopting above-mentioned technical scheme, when carrying out printed circuit board's drilling, place printed circuit board earlier on placing the board. And then the driving piece is opened, the screw rod is driven to rotate under the driving of the driving piece, and the first butt joint block and the second butt joint block are close to each other due to the fact that the screwing directions of the threaded holes on the first butt joint block and the second butt joint block are opposite. When the first abutting block and the second abutting block are close to the printed circuit board to abut against, the driving piece is closed, and the printed circuit board is clamped by the first abutting block and the second abutting block. Compare in the fixed printed circuit board of butt effect through the spring before improving, this application controls the method that first butt piece and second butt piece pressed from both sides tight printed circuit board through drive screw's rotation more stable, and fixed effect is better ideal.

Optionally, a fixing groove is formed in each of the first abutting block and the second abutting block along the length direction of the placing plate, and a rubber plate is fixedly connected to each fixing groove.

Through adopting above-mentioned technical scheme, when using first butt joint piece and second butt joint piece to fix printed circuit board, through being provided with the rubber slab, make the position and the printed circuit board looks butt that are equipped with the rubber slab, can reduce the damage of pressing from both sides tight printed circuit board in-process to printed circuit board.

Optionally, the driving part comprises a servo motor, a driving gear is fixedly connected to an output shaft of the servo motor, a driven gear is fixedly connected to one end, penetrating through the side wall of the positioning box, of the driving screw, the driving gear is meshed with the driven gear, and the diameter of the driving gear is smaller than that of the driven gear.

Through adopting above-mentioned technical scheme, servo motor's setting makes the mobility control of first butt joint piece and second butt joint piece more accurate to through being provided with great driven gear, make driving screw's rotational speed further reduce, the translation rate of first butt joint piece and second butt joint piece reduces, more is favorable to the accurate effort of adjusting first butt joint piece and second butt joint piece to printed circuit board, avoids the effort too strong to lead to printed circuit board impaired.

Optionally, place still to be provided with the auxiliary positioning spare on the board, the auxiliary positioning spare includes first fixed plate, second fixed plate, first sliding block and second sliding block, first fixed plate and second fixed plate fixed connection respectively are at the both ends of placing the board, the equal sliding connection of first sliding block and second sliding block is on placing the board, first sliding block sets up the one side that is close to first fixed plate at the second sliding block, link to each other through the butt spring between first fixed plate and the first sliding block, also link to each other through the butt spring between second fixed plate and the first sliding block.

Through adopting above-mentioned technical scheme, place printed circuit board back on placing the board, first sliding block and second sliding block have preliminary fixed action to printed circuit board under the effect of butt spring, and printed circuit board is crooked when avoiding first butt piece and second butt piece to press from both sides tight printed circuit board, makes printed circuit board stability in drilling process better.

Optionally, the connecting groove has been seted up on the roof of workstation, the locating box joint is to in the connecting groove, the both ends fixedly connected with stationary blade of locating box, the thread groove has been seted up on the workstation, the thread groove sets up the both ends at the connecting groove respectively, the connecting hole has been seted up on the stationary blade, sliding connection has fixing bolt in the connecting hole, fixing bolt passes the one end of connecting hole and thread groove threaded connection.

Through adopting above-mentioned technical scheme, will fix a position the box and install the back in the spread groove. Connecting holes in the connecting pieces are aligned with the thread grooves, the fixing bolts are screwed to the thread grooves, and the connecting pieces are abutted to the workbench by the fixing bolts. The positioning box is fixed through the connecting sheet, so that the positioning box is convenient to disassemble and assemble, and is convenient to subsequently replace or maintain.

Optionally, the bottom of location box is provided with removes bits subassembly, remove bits subassembly and include the mounting panel and install the brush hair on the mounting panel, the both sides of location box bottom are rotated along the length direction of location box and are connected with reciprocal lead screw, threaded connection has the connecting block on the reciprocal lead screw, the mounting panel is connected between two connecting blocks, the lateral wall that the location box was passed to the one end of reciprocal lead screw is connected with the power spare.

Through adopting above-mentioned technical scheme, because can produce a large amount of printed circuit board pieces in the drilling process location box, drive the mounting panel and remove when opening power component drive connecting block, the brush hair on the mounting panel can pile up the piece, and the clearance of being convenient for avoids drilling process in the piece to fill and causes the pollution.

Optionally, the power part includes a driving motor, a transmission shaft is fixedly connected to an output shaft of the driving motor, two first bevel gears are fixedly connected to the transmission shaft, a second bevel gear is fixedly connected to one end, through which the reciprocating screw rod passes, of the side wall of the positioning box, and the first bevel gear and the second bevel gear are meshed with each other.

By adopting the technical scheme, after the driving motor is started, the driving motor drives the transmission shaft to rotate, the transmission shaft drives the first bevel gear to rotate, the first bevel gear drives the meshed second bevel gear to rotate, and the second bevel gear drives the two reciprocating screw rods to rotate, so that the reciprocating screw rods are driven to rotate.

Optionally, a mounting groove is formed in one side, close to the mounting plate, of the connecting block along the thickness direction of the mounting block, a positioning groove is formed in the groove wall on one side of the mounting groove and perpendicular to the mounting groove, mounting blocks are fixedly connected to the two ends of the mounting plate and are connected with the mounting groove in a sliding mode, the mounting blocks are connected with the positioning groove in a clamped mode, and a butt joint block is arranged in the mounting groove in a clamped mode.

Through adopting above-mentioned technical scheme, with the sliding block joint back in the constant head tank, again with butt piece joint to the mounting groove in, make the mounting panel fixed between two connecting blocks. Meanwhile, the mounting plate is detachably connected with the connecting block, so that the bristles can be cleaned and replaced conveniently.

In summary, the present application includes at least one of the following benefits:

1. through being provided with the tight printed circuit board of first butt piece of servo motor control and second butt piece clamp, it is more stable than the tight mode of spring support, more is favorable to the drilling on the printed circuit board.

2. The scraps in the positioning box can be timely removed by the scrap removing device, so that pollution caused by the scraps is avoided.

3. Through being provided with the great driven gear of less driving gear transmission, make first butt joint piece and second butt joint piece remove more accurately.

Drawings

Fig. 1 is a schematic structural diagram of an overall device for drilling positioning holes of a printed circuit board according to an embodiment of the present application;

FIG. 2 is a schematic view of the overall structure of the positioning box according to the embodiment of the present application;

fig. 3 is a schematic diagram of an explosive structure of a mounting plate and a connecting block according to an embodiment of the present application.

Reference numerals: 1. a work table; 11. connecting grooves; 2. a positioning part; 3. a positioning box; 31. connecting sheets; 311. connecting holes; 312. fixing the bolt; 4. a servo motor; 41. a driving gear; 42. a driven gear; 46. a first abutment block; 43. a second abutment block; 44. a drive screw; 45. a sliding shaft; 47. fixing grooves; 48. a rubber plate; 5. placing the plate; 51. a first fixing plate; 52. a second fixing plate; 53. a first slider; 54. a second slider; 55. an abutment spring; 6. a drive motor; 61. a drive shaft; 62. a first bevel gear; 63. a second bevel gear; 64. a reciprocating screw rod; 66. connecting blocks; 661. mounting grooves; 662. positioning a groove; 663. a dovetail groove; 7. mounting a plate; 71. brushing; 72. mounting blocks; 73. a dovetail block; 74. and locking the block.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a device for drilling positioning holes of a printed circuit board. Referring to fig. 1, a device for drilling a positioning hole of a printed circuit board includes a table 1 and a positioning part 2 fixedly connected to the table 1.

Referring to fig. 1 and 2, the positioning portion 2 includes a positioning box 3, a connecting groove 11 is provided on the top wall of the working table 1, and the positioning box 3 is clamped with the connecting groove 11. Two connecting sheets 31 are fixedly connected to the outer side walls of two sides of the positioning box 3 respectively, and four threaded grooves in total are formed in the workbench 1 on two sides of the connecting groove 11 corresponding to the connecting sheets 31. The connecting piece 31 is provided with a connecting hole 311 corresponding to the thread groove, the connecting piece 31 is provided with a fixing bolt 312, the fixing bolt 312 is slidably connected with the connecting hole 311, and one end of the fixing bolt 312 penetrating through the connecting hole 311 is in thread connection with the thread groove.

Referring to fig. 2, a servo motor 4 is fixedly connected to a side wall of one side of the positioning box 3, and a driving gear 41 is keyed on an output shaft of the servo motor 4. A driving screw 44 is rotatably connected in the positioning box 3 along the width direction of the positioning box 3, one end of the driving screw 44 close to the servo motor 4 penetrates through a side wall key of the positioning box 3 to be connected with a driven gear 42, and the driving gear 41 is meshed with the driven gear 42. And the driving gear 41 has a smaller diameter than the driven gear 42. The driving gear 41 drives the driven gear 42 to rotate under the driving of the servo motor 4, the driven gear 42 drives the driving screw 44 to rotate, and the rotating speed is reduced in the transmission process, so that the servo motor 4 can more accurately control the rotation of the driving screw 44.

Referring to fig. 2, the positioning portion 2 further includes a first abutting block 46 and a second abutting block 43, threaded holes are respectively formed on the first abutting block 46 and the second abutting block 43, and the rotation directions of the threaded holes on the first abutting block 46 and the second abutting block 43 are opposite. The drive screw 44 is threadedly coupled to threaded bores in both the first abutment block 46 and the second abutment block 43.

Referring to the figure, the first abutting block 46 and the second abutting block 43 are further provided with a sliding hole along the length of the driving screw 44, a sliding shaft 45 is fixedly connected to the inside of the positioning box 3 along the width direction of the positioning box 3, and the sliding shaft 45 is slidably connected with the first abutting block 46 and the second abutting block 43 through the sliding hole. When the servo motor 4 is turned on to drive the driving screw 44 to rotate, the first abutting block 46 and the second abutting block 43 move closer to or away from each other under the action of the driving screw 44.

Referring to fig. 2, a fixing groove 47 is formed in a side of the first abutting block 46 close to the second abutting block 43 along a width direction of the first abutting block 46, and a fixing groove 47 is also formed in a side of the second abutting block 43 close to the first abutting block 46 along the width direction of the second abutting block 43. Rubber plates 48 are clamped in the two fixing grooves 47. When the first abutment block 46 and the second abutment block 43 approach each other under the control of the servo motor 4. The printed circuit board is clamped by the first abutting block 46 and the second abutting block 43, and the clamped part is arranged at the rubber plate 48, so that the damage to the printed circuit board in the clamping process is reduced.

Referring to fig. 2, a placing plate 5 for placing a printed circuit board is welded in the positioning box 3 along the length direction of the positioning box 3. The placing plate 5 is further provided with an auxiliary positioning element for primarily fixing the printed circuit board, the auxiliary positioning element comprises a first fixing plate 51, the first fixing plate 51 is fixedly connected to one end of the placing plate 5, and the other end of the placing plate 5 is fixedly connected with a second fixing plate 52.

The placing plate 5 is further sleeved with a first sliding block 53 and a second sliding block 54, the first sliding block 53 and the second sliding block 54 are arranged between the first fixing plate 51 and the second fixing plate 52, and the first sliding block 53 is arranged on the side of the second sliding block 54 close to the first fixing plate 51. The first fixed plate 51 and the first slide block 53 are connected to each other by an abutting spring 55, and the second fixed plate 52 and the second slide block 54 are also connected to each other by an abutting spring 55. The first and second slide blocks 53 and 54 are abutted by the abutment spring 55, so that the printed circuit board on the placement board 5 can be preliminarily fixed.

Referring to fig. 2, a chip removing assembly is further provided in the positioning box 3. Concretely, the chip removing assembly comprises a driving motor 6 fixedly installed on the outer side wall of one end of the positioning box 3, a transmission shaft 61 is fixedly connected to the output shaft of the driving motor 6 along the length direction of the output shaft, and two first bevel gears 62 are connected to the transmission shaft 61 in a key mode.

Two reciprocating screw rods 64 are rotatably connected in the positioning box 3 along the length direction of the positioning box 3, and the two reciprocating screw rods 64 are respectively arranged at two sides of the positioning box 3. One ends of the two reciprocating screw rods 64 close to the driving motor 6 penetrate through the side wall of the positioning box 3 and are in key connection with a second bevel gear 63, and the first bevel gear 62 is meshed with the second bevel gear 63. After the driving motor 6 is started, the driving motor 6 drives the transmission shaft 61 to rotate, the transmission shaft 61 drives the first bevel gear 62 to rotate, the first bevel gear 62 drives the second bevel gear 63 to rotate, and the second bevel gear 63 drives the reciprocating screw rod 64 to rotate.

Referring to fig. 2 and 3, the debris removal assembly further comprises a mounting plate 7 and bristles 71 fixedly attached to the mounting plate 7. Equal threaded connection has connecting block 66 on two reciprocal lead screws 64, and mounting groove 661 has all been seted up along the thickness direction of connecting block 66 in the one side that two connecting block 66 are relative, and constant head tank 662 has been seted up to the cell wall upper level on mounting groove 661 one side. The two ends of the mounting plate 7 are fixed with mounting blocks 72, and the mounting blocks 72 are clamped with the positioning grooves 662.

Referring to fig. 3, a dovetail groove 663 is formed in the groove bottom of the mounting groove 661 in the length direction of the mounting groove 661, a locking block 74 is clamped in the mounting groove 661, a dovetail block 73 is fixedly connected to the locking block 74 in the length direction of the locking block 74, and the dovetail block 73 is connected with the dovetail groove 663 in a sliding mode.

The implementation principle of the device for drilling the positioning hole of the printed circuit board is as follows: when the device is used for drilling the printed circuit board, the first sliding block 53 and the second sliding block 54 are moved to the two ends, and then the printed circuit board is placed on the placing plate 5. The first slide block 53 and the second slide block 54 preliminarily fix the printed circuit board on the placing plate 5 under the action of the abutting spring 55.

Then, the servo motor 4 is turned on, the servo motor 4 drives the driving gear 41 to rotate, the driving gear 41 drives the driven gear 42 to rotate, and the driven gear 42 drives the driving screw 44 to rotate. The first abutment block 46 and the second abutment block 43 on the drive screw 44 are brought close to each other by the drive screw 44 and fix the printed circuit board.

After the drilling of the printed circuit board is completed, the driving motor 6 is started, the driving motor 6 drives the transmission shaft 61 to rotate, the transmission shaft 61 drives the first bevel gear 62 to rotate, the first piebald horse drives the second bevel gear 63 to rotate, and the second bevel gear 63 drives the reciprocating screw rod 64 to rotate. The two connecting blocks 66 are driven by the reciprocating screw rod 64 to drive the mounting plate 7 to reciprocate, and the brush hairs 71 accumulate scraps at the bottom of the positioning box 3 in the reciprocating process, so that workers can clean the positioning box conveniently.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The device for drilling the positioning hole of the printed circuit board comprises a workbench (1) and is characterized in that a positioning part (2) used for being matched with a drill bit is arranged on the workbench (1), the positioning part (2) comprises a positioning box (3) with an opening at the top, a driving screw (44), a first abutting block (46) and a second abutting block (43), the driving screw (44) is rotatably connected in the positioning box (3) along the width direction of the positioning box (3), one end of the driving screw (44) penetrates through the side wall of the positioning box (3) to be connected with a driving piece, a sliding shaft (45) is fixedly connected in the positioning box (3) along the width direction of the positioning box (3), a first threaded hole is formed in the first abutting block (46), a second threaded hole is formed in the second abutting block (43), the threads of the first threaded hole and the second threaded hole are opposite in rotation direction, first screw hole and second screw hole all with drive screw (44) screw-thread fit, sliding hole has still been seted up on first butt piece (46) and second butt piece (43), two sliding hole all slides with sliding shaft (45) and links to each other, still be provided with board (5) of placing that are used for placing printed circuit board along the length direction of location box (3) in location box (3).

2. A device for drilling positioning holes in printed circuit boards according to claim 1, wherein the first abutting block (46) and the second abutting block (43) are provided with fixing grooves (47) along the length direction of the placing board (5), and rubber plates (48) are fixedly connected in the fixing grooves (47).

3. A device for drilling locating holes in printed circuit boards according to claim 1, wherein the driving member comprises a servo motor (4), a driving gear (41) is fixedly connected to an output shaft of the servo motor (4), a driven gear (42) is fixedly connected to one end of the driving screw (44) penetrating through the side wall of the locating box (3), the driving gear (41) is meshed with the driven gear (42), and the diameter of the driving gear (41) is smaller than that of the driven gear (42).

4. A device for drilling pilot holes in printed circuit boards according to claim 1, it is characterized in that the placing plate (5) is also provided with an auxiliary positioning piece, the auxiliary positioning piece comprises a first fixing plate (51), a second fixing plate (52), a first sliding block (53) and a second sliding block (54), the first fixing plate (51) and the second fixing plate (52) are respectively fixedly connected with two ends of the placing plate (5), the first sliding block (53) and the second sliding block (54) are both connected on the placing plate (5) in a sliding way, the first sliding block (53) is arranged on one side of the second sliding block (54) close to the first fixed plate (51), the first fixing plate (51) and the first sliding block (53) are connected through an abutting spring (55), the second fixed plate (52) and the first sliding block (53) are also connected through an abutting spring (55).

5. The device for drilling the positioning hole of the printed circuit board as claimed in claim 4, wherein a connecting groove (11) is formed in the top wall of the workbench (1), the positioning box (3) is clamped into the connecting groove (11), connecting plates (31) are fixedly connected to two sides of the positioning box (3), a thread groove is formed in the workbench (1), the thread groove is respectively arranged at two ends of the connecting groove (11), a connecting hole (311) is formed in the connecting plate (31), a fixing bolt (312) is slidably connected in the connecting hole (311), and one end of the fixing bolt (312) penetrating through the connecting hole (311) is in threaded connection with the thread groove.

6. The device for drilling the positioning hole of the printed circuit board as claimed in claim 1, wherein the bottom of the positioning box (3) is provided with a chip removing assembly, the chip removing assembly comprises a mounting plate (7) and bristles (71) mounted on the mounting plate (7), two sides of the bottom of the positioning box (3) are rotatably connected with a reciprocating screw rod (64) along the length direction of the positioning box (3), a connecting block (66) is connected on the reciprocating screw rod (64) in a threaded manner, the mounting plate (7) is connected between the two connecting blocks (66), and one end of the reciprocating screw rod (64) penetrates through the side wall of the positioning box (3) and is connected with a power part.

7. A device for drilling positioning holes in a printed circuit board according to claim 6, wherein the power part comprises a driving motor (6), a transmission shaft (61) is fixedly connected to an output shaft of the driving motor (6), two first bevel gears (62) are fixedly connected to the transmission shaft (61), two second bevel gears (63) are fixedly connected to one ends of the two reciprocating screw rods (64) penetrating through the side wall of the positioning box (3), and the first bevel gears (62) are meshed with the second bevel gears (63).

8. The device for drilling the positioning hole of the printed circuit board as claimed in claim 7, wherein one side of the connecting block (66) close to the mounting plate (7) is provided with mounting grooves (661) along the thickness direction of the mounting block (72), the groove wall of one side of the mounting groove (661) is horizontally provided with positioning grooves (662), the two ends of the mounting plate (7) are fixedly connected with the mounting blocks (72), the mounting blocks (72) are clamped with the positioning grooves (662), the groove wall of the other side of the mounting groove (661) is further provided with dovetail grooves (663) along the length direction of the mounting groove (661), the mounting groove (661) is internally clamped with the locking block (74), one side of the locking block (74) is fixedly connected with the dovetail block (73), and the dovetail block (73) is connected with the dovetail grooves (663) in a sliding manner.