CN114055260A

CN114055260A - A drill grinding device for PCB drill production

Info

Publication number: CN114055260A
Application number: CN202111511895.1A
Authority: CN
Inventors: 陈登峰; 窦祖宇; 刘超; 沈先伟; 吴杰
Original assignee: Liuan Yusheng Electronic Technology Co ltd
Current assignee: Liuan Yusheng Electronic Technology Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-02-18
Anticipated expiration: 2041-12-07
Also published as: CN114055260B

Abstract

The invention provides a drill bit polishing device for PCB drill bit production, belongs to the technical field of drill bit production, and is used for solving the technical problems that the conventional PCB drill bit polishing device needs to polish step by step and has low polishing efficiency. The grinding machine comprises a base, wherein a moving seat is arranged on the base in a sliding manner, a clamping mechanism is arranged on the moving seat, two moving grooves are formed in the base, moving blocks are arranged in the moving grooves in a sliding manner, an adjusting mechanism is arranged on the moving blocks, two grinding machines are fixed at the upper end of the adjusting mechanism, a moving mechanism is arranged on an output shaft of a first cylinder, and a stabilizing mechanism is arranged on the moving seat; according to the invention, two spiral grooves on the PCB drill bit are simultaneously polished, so that the polishing efficiency is improved; PCB drill bits with different diameters can be polished, PCB drill bits with different lengths can be positioned, and the application range of the device is enlarged; after polishing, guarantee that the PCB drill bit is motionless, separate the polisher to both sides, prevent polisher and PCB drill bit contact once more, improve the quality of polishing.

Description

Drill bit grinding device is used in production of PCB drill bit

Technical Field

The invention belongs to the technical field of drill bit production, relates to a drill bit polishing device, and particularly relates to a drill bit polishing device for PCB drill bit production.

Background

The PCB is called a Printed Circuit Board (PCB) because the PCB is manufactured by adopting electronic printing technology, so the PCB is called the PCB, and a PCB drill bit needs to be used to drill small holes on the PCB in the processing process of the PCB so that pins of elements can be inserted into the small holes, so the PCB drill bit is widely applied;

the PCB drill bit on the present market all needs to polish the step through twice helicla flute, and both sides helicla flute can not polish simultaneously, has reduced production efficiency, need stack up the supporting pad in the drill bit bottom before using the polisher to set up the helicla flute in addition, and the drill bit takes place the skew and splits even when preventing to polish, and this step also needs to spend a large amount of time, has seriously influenced the machining efficiency of drill bit.

Based on this, we have designed a PCB drill bit production and used drill bit grinding device.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a drill bit polishing device for PCB drill bit production, which aims to solve the technical problems that: how to improve PCB drill bit grinding device's the efficiency of polishing.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a drill bit grinding device is used in production of PCB drill bit, the on-line screen storage device comprises a base, the spout has been seted up to the upper end of base, the inside slip of spout is provided with removes the seat, the upper end of removing the seat is fixed with the mounting panel, be equipped with fixture on the mounting panel, be used for centre gripping PCB drill bit, the fixed surface is fixed with the fixed plate on the base, the fixed plate side is fixed with first cylinder, and the output shaft of first cylinder is connected with the transmission of removing the seat, the one end that the fixed plate was kept away from to the base upper surface sets up the shifting chute of two symmetric distributions, and it is provided with the movable block to slide in the shifting chute, be equipped with adjustment mechanism on the movable block, adjustment mechanism's upper end is fixed with two polishers, and two polisher central symmetric distributions, be equipped with moving mechanism on the output shaft of first cylinder, be used for driving two polisher relative movement, and be equipped with stabilizing mean on removing the seat, a position for stably removing the seat.

The working principle of the invention is as follows: fix the PCB drill bit on fixture, then drive the moving seat through first cylinder and remove to the direction that is close to the polisher, at the removal in-process, moving mechanism can drive two polishers and be close to each other, remove to setting for the position, in-process at the PCB drill bit gos forward, two polishers act on the PCB drill bit simultaneously and treat the position of polishing, both sides atress is the same, skew and cracked condition can not appear, the completion back of polishing, first cylinder shrink, this moment under stabilizing mean's effect, the moving seat can not remove in the short time, in this time, moving mechanism drives two polishers and removes to both sides, later the moving seat removes again, the PCB drill bit of polishing can not contact with the polisher once more, guarantee the quality of polishing.

Fixture is including fixing the rotation motor on the mounting panel, be fixed with the rotor plate on the output shaft of rotation motor, and one side of rotor plate is fixed with the second cylinder of a plurality of circumference equipartitions, be fixed with the movable plate on the output shaft of second cylinder, be fixed with electronic three-jaw chuck in the middle of the movable plate, the drill bit is fixed on electronic three-jaw chuck, set up flutedly on the lateral wall that first cylinder was kept away from to the spout, be fixed with the push rod on the removal seat, and the tip of push rod is located inside the recess, the tip of push rod articulates there is the gauge rod, be fixed with two montants on the base, and seted up the long notch in the middle of the montant, the side of gauge rod is fixed with branch, and branch slides and sets up inside the long notch that corresponds the position.

Structure more than adopting, through electronic three ring chuck centre gripping drill bit, then according to the relative position of drill bit and guide bar upper end, adjust the length of second cylinder, after adjusting, at the in-process that removes the seat and remove, drive the drill bit by rotating the motor and rotate, carry out polishing of helicla flute, at the removal in-process that removes the seat, the lower extreme of guide bar can be promoted to the push rod for the guide bar rotates downwards, prevents that the guide bar from blockking that electronic three-jaw chuck removed.

Adjustment mechanism is including fixing two bracing pieces in the base both sides, rotates between two bracing pieces and is provided with the dwang, and the end fixing of dwang has the rotation handle, and the upper end of two movable blocks is fixed with the fixing base respectively, and the square groove has been seted up to the upper end of fixing base, and the square groove slides and is provided with the slider, and two polishers are fixed respectively on two sliders, and the square groove both ends are rotated and are provided with the threaded rod, and two threaded rod screw thread opposite direction, slider and threaded rod threaded connection, the through-hole has been seted up in the middle of the threaded rod, and the dwang slides and runs through the through-hole.

By adopting the structure, the rotating rod is rotated to drive the two threaded rods to rotate, so that the positions of the two grinding machines are adjusted, meanwhile, the two grinding machines are always in a central symmetry state, and the two moving blocks can still drive the grinding machines above the two moving blocks to move synchronously.

The moving mechanism comprises a cross rod fixed on an output shaft of a first cylinder, moving pipes are arranged at two ends of the cross rod in a sliding mode respectively, a limiting rod is fixed at the lower end of each moving pipe, a moving rod is fixed at the side end of each moving pipe, a round hole is formed in each moving block, each moving rod penetrates through the round hole in the corresponding position in a sliding mode, two symmetrically-distributed track grooves are formed in the base, each track groove is in a parallelogram shape, the lower end of each limiting rod is arranged in each track groove in a sliding mode, and the track grooves are provided with one-way moving assemblies to two corners.

Structure more than adopting, the orbit groove makes the gag lever post can only remove along the orbit, in-process that advances at the horizontal pole, it moves the pipe forward to drive, meanwhile, at the gag lever post, under the effect in unidirectional movement subassembly and orbit groove, make the removal pipe can be close to the centre when advancing, it is close to the centre to drive two movable blocks through two movable bars, get into and remove two polishers to the centre to suitable position, polish, when the horizontal pole moves backward, at the gag lever post, under the effect in unidirectional movement subassembly and orbit groove, the removal pipe moves to the outside in step, drive two polishers and move to the outside, make the polisher keep away from the drill bit, prevent to cause the drill bit to damage in the return stroke in-process.

The unidirectional movement assembly comprises a baffle, the acute angle inner side of the track groove is provided with a mounting groove, and the baffle is hinged in the mounting groove through an elastic rotating shaft.

Structure more than adopting, can dial the baffle when the gag lever post forward movement in the orbit groove, when its reverse movement, gag lever post and baffle contact, the baffle is supported by the lateral wall of mounting groove, can not the antiport, and then makes the gag lever post remove along the baffle lateral wall, and then control gag lever post forward movement.

Stabilizing mean is including fixing four fixed columns in the removal seat upper end, and the horizontal pole is located between the four nuclear fixed columns, and the side of removing the seat sets up the rectangular channel of two symmetric distributions, and the inside sliding groove that has seted up of rectangular channel, and slides in the sliding groove and be provided with the clutch blocks, and is connected with the spring between the inner wall of clutch blocks and rectangular channel.

Structure more than adopting, the spring extrudees the clutch blocks to the outside, increases the frictional force that removes the seat and overcome at portable needs, and when the horizontal pole when backward moving, the horizontal pole removes between the fixed column but not with the fixed column contact, this moment under the effect of clutch blocks, removes the seat and can not remove, and at this moment, the horizontal pole can drive two polisher separations, further prevents polisher and drill bit contact, guarantees the drill bit quality of polishing.

Compared with the prior art, this drill bit grinding device is used in production of PCB drill bit has following advantage:

1. through two polisher, removal seat, fixture and first cylinder, polish two helicla flutes on the PCB drill bit simultaneously, improve the efficiency of polishing.

2. Through adjustment mechanism, the position of two polisher of synchronous adjustment for the device can polish the different PCB drill bit of various diameters, through fixture, fixes a position the PCB drill bit of different length, makes the device can polish the PCB drill bit of different length, increases device application scope.

3. Through moving mechanism and stabilizing mean, after polishing the completion, guarantee that the PCB drill bit is motionless, with the polisher to both sides separation, prevent polisher and PCB drill bit contact once more, improve the quality of polishing.

Drawings

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

FIG. 2 is a partial cross-sectional structural schematic view of the clamping mechanism of the present invention;

FIG. 3 is a schematic view of the moving mechanism and the stabilizing mechanism of the present invention;

FIG. 4 is a schematic top view of the track groove of the present invention;

FIG. 5 is a schematic view of the structure of the stabilizing mechanism of the present invention;

FIG. 6 is a schematic view showing the overall structure of the adjusting mechanism of the present invention;

FIG. 7 is a partial schematic view of the adjustment mechanism of the present invention;

in the figure: 1. a base; 2. a chute; 3. a movable seat; 4. mounting a plate; 5. a clamping mechanism; 501. rotating the motor; 502. a rotating plate; 503. a second cylinder; 504. moving the plate; 505. an electric three-jaw chuck; 506. a push rod; 507. an indication lever; 508. a vertical rod; 509. a long slot opening; 510. a groove; 6. a fixing plate; 7. a first cylinder; 8. a moving groove; 9. a moving block; 10. an adjustment mechanism; 1001. a support bar; 1002. rotating the rod; 1003. rotating the handle; 1004. a fixed seat; 1005. a slider; 1006. a threaded rod; 11. a sander; 12. a moving mechanism; 1201. a cross bar; 1202. moving the tube; 1203. a travel bar; 1204. a circular hole; 1205. a limiting rod; 1206. a track groove; 1207. mounting grooves; 1208. a baffle plate; 13. a stabilizing mechanism; 1301. fixing a column; 1302. a rectangular groove; 1303. a sliding groove; 1304. a friction block; 1305. a spring.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-7, the embodiment provides a drill polishing device for PCB drill production, which includes a base 1, a chute 2 is formed at an upper end of the base 1, a moving seat 3 is slidably disposed inside the chute 2, a mounting plate 4 is fixed at an upper end of the moving seat 3, a clamping mechanism 5 is disposed on the mounting plate 4 for clamping a PCB drill, a fixing plate 6 is fixed on an upper surface of the base 1, a first cylinder 7 is fixed at a side end of the fixing plate 6, an output shaft of the first cylinder 7 is in transmission connection with the moving seat 3, two moving grooves 8 symmetrically distributed are formed at an end of the upper surface of the base 1 away from the fixing plate 6, a moving block 9 is slidably disposed in the moving grooves 8, an adjusting mechanism 10 is disposed on the moving block 9, two polishing machines 11 are fixed at an upper end of the adjusting mechanism 10, centers of the two polishing machines 11 are symmetrically distributed, a moving mechanism 12 is disposed on an output shaft of the first cylinder 7, the two sander 11 are driven to move relatively, and the moving seat 3 is provided with a stabilizing mechanism 13 for stabilizing the position of the moving seat 3; fix the PCB drill bit on fixture 5, then move seat 3 and remove to the direction that is close to polisher 11 through first cylinder 7 drive, in the removal in-process, moving mechanism 12 can drive two polishers 11 and be close to each other, remove to setting for the position, in the in-process that the PCB drill bit gos forward, two polishers 11 act on the PCB drill bit simultaneously and treat the position of polishing, both sides atress is the same, skew and cracked condition can not appear, after polishing the completion, first cylinder 7 shrink, this moment under stabilizing mean 13's effect, can not remove in moving seat 3 short time, in this time, moving mechanism 12 drives two polishers 11 and removes to both sides, later remove seat 3 and remove again, the PCB drill bit that polishes can not contact with polisher 11 once more, guarantee the quality of polishing.

The clamping mechanism 5 comprises a rotating motor 501 fixed on the mounting plate 4, a rotating plate 502 is fixed on an output shaft of the rotating motor 501, a plurality of second air cylinders 503 which are uniformly distributed circumferentially are fixed on one side of the rotating plate 502, a moving plate 504 is fixed on an output shaft of the second air cylinders 503, an electric three-jaw chuck 505 is fixed in the middle of the moving plate 504, a drill bit is fixed on the electric three-jaw chuck 505, a groove 510 is formed in the side wall of the chute 2, away from the first air cylinder 7, a push rod 506 is fixed on the moving seat 3, the end part of the push rod 506 is located inside the groove 510, an indicating rod 507 is hinged to the end part of the push rod 506, two vertical rods 508 are fixed on the base 1, a long notch 509 is formed in the middle of each vertical rod 508, a support rod is fixed at the side end of each indicating rod 507, and the support rod is slidably arranged inside the long notch 509 at the corresponding position; the drill bit is clamped through the electric three-ring chuck, then the length of the second air cylinder 503 is adjusted according to the relative position of the drill bit and the upper end of the indicating rod 507, after the adjustment is completed, in the moving process of the moving seat 3, the drill bit is driven to rotate by the rotating motor 501, the grinding of the spiral groove is carried out, in the moving process of the moving seat 3, the push rod 506 can push the lower end of the indicating rod 507, the indicating rod 507 rotates downwards, and the indicating rod 507 is prevented from blocking the electric three-jaw chuck 505 to move.

The adjusting mechanism 10 comprises two support rods 1001 fixed on two sides of the base 1, a rotating rod 1002 is rotatably arranged between the two support rods 1001, a rotating handle 1003 is fixed on the end portion of the rotating rod 1002, fixing seats 1004 are respectively fixed on the upper ends of the two moving blocks 9, a square groove is formed in the upper end of each fixing seat 1004, a sliding block 1005 is slidably arranged in the square groove, the two grinding machines 11 are respectively fixed on the two sliding blocks 1005, threaded rods 1006 are rotatably arranged at two ends of the square groove, the thread directions of the two threaded rods 1006 are opposite, the sliding blocks 1005 are in threaded connection with the threaded rods 1006, a through hole is formed in the middle of each threaded rod 1006, and the rotating rod 1002 slidably penetrates through the through hole; rotating the dwang 1002 can drive two threaded rods 1006 and rotate, and then adjust the position of two polisher 11, can guarantee simultaneously that two polisher 11 are in central symmetry state all the time, and two movable block 9 remove moreover and still can drive the polisher 11 synchronous motion of its top.

The moving mechanism 12 comprises a cross rod 1201 fixed on an output shaft of the first cylinder 7, moving pipes 1202 are respectively arranged at two ends of the cross rod 1201 in a sliding mode, a limiting rod 1205 is fixed at the lower end of each moving pipe 1202, a moving rod 1203 is fixed at the side end of each moving pipe 1202, a round hole 1204 is formed in each moving block 9, each moving rod 1203 slidably penetrates through the corresponding round hole 1204 in the corresponding position, two symmetrically-distributed track grooves 1206 are formed in the base 1, each track groove 1206 is in a parallelogram shape, the lower end of each limiting rod 1205 is slidably arranged in each track groove 1206, and one-way moving assemblies are arranged at two corners of each track groove 1206; track groove 1206 makes gag lever post 1205 can only remove along the orbit, in-process that the horizontal pole 1201 gos forward, it moves pipe 1202 forward to drive, meanwhile, at gag lever post 1205, under the effect of unidirectional movement subassembly and track groove 1206, make move pipe 1202 can be close to the centre when advancing, it is close to the centre to drive two movable blocks 9 through two movable rods 1203, get into two polisher 11 and move to suitable position to the centre, polish, when horizontal pole 1201 moves backward, at gag lever post 1205, under the effect of unidirectional movement subassembly and track groove 1206, move pipe 1202 moves to the outside in step, drive two polisher 11 and move to the outside, make polisher 11 keep away from the drill bit, prevent to cause the drill bit to damage in the return stroke in-process.

The unidirectional moving assembly comprises a baffle 1208, a mounting groove 1207 is formed in the inner side of the acute angle of the track groove 1206, and the baffle 1208 is hinged in the mounting groove 1207 through an elastic rotating shaft; can dial baffle 1208 open when gag lever post 1205 forward movement in track groove 1206, when its reverse movement, gag lever post 1205 and baffle 1208 contact, baffle 1208 is supported by the lateral wall of mounting groove 1207, can not the reverse rotation, and then makes gag lever post 1205 remove along baffle 1208 lateral wall, and then control gag lever post 1205 forward movement.

The stabilizing mechanism 13 comprises four fixing columns 1301 fixed at the upper end of the moving seat 3, the cross bar 1201 is positioned between the four-core fixing columns 1301, two rectangular grooves 1302 which are symmetrically distributed are formed in the side end of the moving seat 3, a sliding groove 1303 is formed in the rectangular groove 1302, a friction block 1304 is arranged in the sliding groove 1303 in a sliding mode, and a spring 1305 is connected between the friction block 1304 and the inner wall of the rectangular groove 1302; spring 1305 extrudees rub block 1304 to the outside, increases the frictional force that removes seat 3 and need overcome at the portable, and when horizontal pole 1201 backward moved, horizontal pole 1201 moved between fixed column 1301 but not contact with fixed column 1301, and this moment under rub block 1304's effect, remove seat 3 and can not remove, and at this moment, horizontal pole 1201 can drive two polisher 11 separations, further prevents polisher 11 and drill bit contact, guarantees the drill bit quality of polishing.

The fixing modes are all the most common fixing connection modes in the field, such as welding, bolt connection and the like; the above electrical components such as the second cylinder 503, the first cylinder 7, the grinding machine 11, the electric three-jaw chuck 505, the rotating motor 501 and the like are all prior art products, and can be directly purchased and used in the market, and the detailed principle is not repeated.

The working principle of the invention is as follows:

the drill bit is clamped by the electric three-ring chuck, the length of the second air cylinder 503 is adjusted according to the relative position of the drill bit and the upper end of the indicating rod 507, then the cross rod 1201 is driven by the first air cylinder 7 to move towards the direction close to the grinding machine 11, when the cross rod 1201 does not abut against the fixed column 1301, the moving pipe 1202 is driven to move forwards in the advancing process of the cross rod 1201, meanwhile, under the action of the limiting rod 1205, the one-way moving component and the track groove 1206, the moving pipe 1202 can approach towards the middle while advancing, the two moving blocks 9 are driven by the two moving rods 1203 to approach towards the middle, the two grinding machines 11 are moved to proper positions towards the middle, then the cross rod 1201 contacts with the fixed column 1301, the moving seat 3 is driven to move, in the moving process of the moving seat 3, the push rod 506 pushes the lower end of the indicating rod 507, the indicating rod 507 rotates downwards, and the indicating rod 507 is prevented from blocking the electric three-jaw chuck 505, in the forward process of the PCB drill bit, the two grinding machines 11 act on the part to be ground of the drill bit at the same time, the stress on two sides is the same, the situation of deviation and fracture can not occur, after grinding is completed, the first air cylinder 7 contracts, when the cross rod 1201 is not contacted with the fixed column 1301, the movable seat 3 can not move under the action of the friction block 1304, at the moment, under the action of the limiting rod 1205, the one-way moving component and the track groove 1206, the movable tube 1202 synchronously moves outwards to drive the two grinding machines 11 to move outwards, so that the grinding machines 11 are far away from the PCB drill bit, the damage of the PCB drill bit in the return stroke process is prevented, then, after the cross rod 1201 is contacted with the fixed column 1301, the movable seat 3 is driven to reset, in addition, before the device is used, the rotating rod 1002 can be rotated to drive the two threaded rods 1006 to rotate, the positions of the two grinding machines 11 are further adjusted, and simultaneously, the two grinding machines 11 can be ensured to be in a central symmetry state all the time, and two movable blocks 9 move and still can drive the polisher 11 synchronous motion above it, and the device of getting out can polish the different PCB drill bits of various sizes.

In conclusion, two spiral grooves on the PCB drill bit are simultaneously polished through the two polishing machines 11, the movable seat 3, the clamping mechanism 5 and the first air cylinder 7, so that the polishing efficiency is improved;

the positions of the two grinding machines 11 are synchronously adjusted through the adjusting mechanism 10, so that the device can grind PCB drill bits with different diameters, and the PCB drill bits with different lengths are positioned through the clamping mechanism 5, so that the device can grind the PCB drill bits with different lengths, and the application range of the device is enlarged;

through moving mechanism 12 and stabilizing mean 13, after polishing the completion, guarantee that the PCB drill bit is motionless, with polisher 11 to both sides separation, prevent polisher 11 and PCB drill bit contact once more, improve the quality of polishing.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A drill grinding device for PCB drill production, comprising a base (1), characterized in that the upper end of the base (1) is provided with a chute (2), and a movable seat (2) is slidably provided inside the chute (2). 3), a mounting plate (4) is fixed on the upper end of the movable seat (3), a clamping mechanism (5) is arranged on the mounting plate (4) for clamping the PCB drill bit, and a fixing plate is fixed on the upper surface of the base (1). (6), the side end of the fixed plate (6) is fixed with a first cylinder (7), and the output shaft of the first cylinder (7) is connected to the movable seat (3) in a drive, and the upper surface of the base (1) is far away from the fixed plate (6). ) is provided with two symmetrically distributed moving grooves (8) at one end, and a moving block (9) is slidably arranged in the moving groove (8), and an adjusting mechanism (10) is provided on the moving block (9), and the adjusting mechanism (10 ) is fixed with two grinding machines (11), and the two grinding machines (11) are symmetrically distributed in the center, and the output shaft of the first cylinder (7) is provided with a moving mechanism (12) for driving the two grinding machines. (11) Relatively moving, and a stabilizing mechanism (13) is arranged on the moving base (3) for stabilizing the position of the moving base (3).

2. The drill bit grinding device for PCB drill bit production according to claim 1, wherein the clamping mechanism (5) comprises a rotating motor (501) fixed on the mounting plate (4), and the rotating motor ( A rotating plate (502) is fixed on the output shaft of 501), and one side of the rotating plate (502) is fixed with a plurality of second cylinders (503) uniformly distributed around the circumference, and the output shaft of the second cylinder (503) is fixed with A moving plate (504), an electric three-jaw chuck (505) is fixed in the middle of the moving plate (504), the drill bit is fixed on the electric three-jaw chuck (505), and the chute (2) is away from the side of the first cylinder (7) A groove (510) is opened on the wall, a push rod (506) is fixed on the movable seat (3), and the end of the push rod (506) is located inside the groove (510), and the end of the push rod (506) is hinged There is an indicator rod (507), two vertical rods (508) are fixed on the base (1), and a long slot (509) is opened in the middle of the vertical rod (508), and a support rod is fixed on the side end of the indicator rod (507). , and the support rod is slidably arranged inside the long slot (509) at the corresponding position.

3. A drill bit grinding device for PCB drill bit production according to claim 1, wherein the adjustment mechanism (10) comprises two support rods (1001) fixed on both sides of the base (1), two A rotating rod (1002) is rotatably arranged between the support rods (1001), and the end of the rotating rod (1002) is fixed with a rotating handle (1003), and the upper ends of the two moving blocks (9) are respectively fixed with a fixed seat (1004) , the upper end of the fixed seat (1004) is provided with a square groove, the sliding block (1005) is slidably arranged in the square groove, the two grinding machines (11) are respectively fixed on the two sliding blocks (1005), and the two ends of the square groove are rotated to set There is a threaded rod (1006), and the thread directions of the two threaded rods (1006) are opposite, the slider (1005) is threadedly connected with the threaded rod (1006), a through hole is formed in the middle of the threaded rod (1006), and the rotating rod (1002) Slide through the through hole.

4. A drill bit grinding device for PCB drill bit production according to claim 1, characterized in that the moving mechanism (12) comprises a transverse rod (1201) fixed on the output shaft of the first cylinder (7), the transverse Two ends of the rod (1201) are respectively slidably provided with a moving tube (1202), the lower end of the moving tube (1202) is fixed with a limit rod (1205), and the side end of the moving tube (1202) is fixed with a moving rod (1203), a moving block (9) A circular hole (1204) is provided on the base, and the moving rod (1203) slides through the circular hole (1204) at the corresponding position. Two symmetrically distributed track grooves (1206) are provided on the base (1), and the track grooves (1206) is in the shape of a parallelogram, the lower end of the limit rod (1205) is slidably arranged inside the track groove (1206), and the track groove (1206) is provided with one-way moving components at opposite corners.

5. The drill bit grinding device for PCB drill bit production according to claim 4, wherein the one-way moving assembly comprises a baffle plate (1208), and a mounting slot (1207) is provided on the inside of the acute angle of the track groove (1206). ), and the baffle plate (1208) is hinged in the installation groove (1207) through an elastic rotating shaft.

6. The drill bit grinding device for PCB drill bit production according to claim 4 or 5, wherein the stabilization mechanism (13) comprises four fixing columns (1301) fixed on the upper end of the movable seat (3), And the cross bar (1201) is located between the four-core fixed columns (1301), the side end of the movable seat (3) is provided with two symmetrically distributed rectangular grooves (1302), and the rectangular groove (1302) is provided with a sliding groove (1302). 1303), a friction block (1304) is slidably arranged in the sliding groove (1303), and a spring (1305) is connected between the friction block (1304) and the inner wall of the rectangular groove (1302).