CN110090978B

CN110090978B - Drilling equipment with protection function for precision machining

Info

Publication number: CN110090978B
Application number: CN201910373616.6A
Authority: CN
Inventors: 时新
Original assignee: Changde Dingcheng Yongxin Machinery Manufacturing Co ltd
Current assignee: CHANGDE DINGCHENG YONGXIN MACHINERY MANUFACTURING Co.,Ltd.
Priority date: 2019-05-07
Filing date: 2019-05-07
Publication date: 2020-10-09
Anticipated expiration: 2039-05-07
Also published as: CN110090978A

Abstract

The invention relates to a drilling device with a protection function for precision machining, which comprises a frame, a driving box, a drill bit and a bottom box, the driving box and the bottom box are both arranged at the same side of the frame, the drill bit is arranged at the bottom of the driving box, a driving device and a moving device are arranged in the driving box, the driving device is in transmission connection with the drill bit, the bottom box is internally provided with a protection mechanism and a fixing mechanism, the fixing mechanism comprises a fixed pipe, a movable plate, a connecting rod and a transmission assembly, the protection mechanism comprises a protection pipe and two power components, the protection pipe and the through hole are coaxially arranged, the outer diameter of the protection pipe is equal to the aperture of the through hole, this a drilling equipment for precision machining's that has a safeguard function has played the function of protection through protection machanism, avoids the piece that splashes to cause the injury to the processing personnel, moreover, still avoids the workpiece surface to receive rigidity effort and impaired through fixed establishment.

Description

Drilling equipment with protection function for precision machining

Technical Field

The invention relates to the field of precision machinery, in particular to drilling equipment with a protection function for precision machining.

Background

The precision machining is a process of changing the overall dimension or performance of a workpiece by using a machining machine, wherein a drilling machine is a common machine tool in the precision machining, the drilling machine mainly uses a drill to machine a hole on the workpiece, the drill usually rotates as a main motion, the axial movement of the drill is a feed motion, a through hole and a blind hole can be drilled, a special cutter can be replaced, and the through hole, the spot facing and the reaming or the tapping and other machining can be carried out.

Current drilling machine is in the course of working, in order to avoid the work piece to produce the skew, it is fixed firm that usually can pass through anchor clamps with the work piece, nevertheless when work piece material intensity is lower, easily makes workpiece surface impaired, has reduced the practicality, moreover, the work piece can produce the more piece that splashes when drilling, and piece temperature is higher moreover, easily causes the injury to the processing personnel, and in addition, the piece that splashes has also reduced the cleanliness factor.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the drilling equipment with the protection function for precision machining is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: a drilling device with a protection function for precision machining comprises a rack, a driving box, a drill bit and a bottom box, wherein the driving box and the bottom box are arranged on the same side of the rack, the drill bit is arranged at the bottom of the driving box, a driving device and a moving device are arranged in the driving box, the driving device is in transmission connection with the drill bit, and a protection mechanism and a fixing mechanism are arranged in the bottom box;

the fixed mechanism comprises a fixed pipe, a movable plate, a connecting rod and a transmission assembly, wherein a through hole is formed in the bottom of the bottom box, the through hole and a drill bit are coaxially arranged, the fixed pipe and the through hole are coaxially arranged, the aperture of the through hole is larger than the outer diameter of the fixed pipe, the inner diameter of the fixed pipe is larger than the diameter of the drill bit, one end of the fixed pipe, far away from the driving box, is fixedly connected with the bottom in the bottom box through the connecting rod, the distance between the other end of the fixed pipe and the driving box is smaller than the distance between the bottom box and the driving box, the movable plate is perpendicular to the drill bit, the movable plate is arranged in the fixed pipe, the movable plate and the inner wall of the fixed pipe are in sliding and sealing connection, the transmission assembly is arranged on one side, far away from the;

the protection mechanism includes protecting tube and two power components, the protecting tube sets up with the through-hole is coaxial, the external diameter of protecting tube equals with the aperture of through-hole, the internal diameter of protecting tube is greater than the external diameter of fixed pipe, the protecting tube passes the through-hole, the inner wall slip and sealing connection of protecting tube and through-hole, the protecting tube sets up between two power components, power component drive protecting tube is along the axial displacement of protecting tube.

Preferably, in order to drive the protective pipe to move, the power assembly comprises a power motor, a screw rod and a sliding block, the screw rod is parallel to the drill bit, the power motor is fixed to the top of the bottom box and is in transmission connection with the screw rod, the sliding block is sleeved on the screw rod, threads matched with the screw rod are arranged at the joint of the sliding block and the screw rod, and the sliding block is fixedly connected with the protective pipe.

Preferably, the screw is coated with a lubricating oil in order to reduce the frictional force between the screw and the slider.

Preferably, in order to drive the movable plate to move, the transmission assembly comprises a reset unit and two transmission units, the reset unit is located between the two transmission units, each transmission unit comprises a connecting line and a fixed pulley, one end of each connecting line is fixed on the inner wall of the protection pipe, the other end of each connecting line is fixed on the movable plate by bypassing the fixed pulleys, and the fixed pulleys are fixed at the bottom in the bottom box.

Preferably, in order to prolong the service life of the connecting line, the connecting line is made of a steel wire rope.

Preferably, in order to realize the function of resetting the movable plate, the resetting unit comprises a slide bar, a supporting block and a spring, the slide bar and the drill bit are coaxially arranged, the slide bar is fixedly connected with the movable plate, the supporting block is sleeved on the slide bar, the supporting block is fixedly connected with the inner wall of the fixed pipe, the spring is positioned between the supporting block and the movable plate, and the supporting block is connected with the movable plate through the spring.

Preferably, in order to avoid the separation of the movable plate and the fixed pipe, a limiting block is arranged on the sliding rod, the limiting block is fixed at one end, far away from the movable plate, of the sliding rod, and the distance between the limiting block and the supporting block is smaller than the distance between the movable plate and one end, close to the driving box, of the fixed pipe.

Preferably, in order to improve the fixing effect, at least two electromagnets are arranged on the inner wall of the fixing pipe close to one end of the driving box, the electromagnets are circumferentially and uniformly distributed by taking the axis of the fixing pipe as a center, and the electromagnets are arranged on one side, close to the driving box, of the moving plate.

Preferably, in order to improve the sealing performance between the workpiece and the fixed pipe, one end of the fixed pipe close to the driving box is provided with a rubber block, and the rubber block is laid on the fixed pipe.

Preferably, in order to improve the cleaning effect, an auxiliary unit is arranged on the bottom box and comprises an air pipe and an air suction pump, a connecting hole is formed in the bottom box, the air pipe penetrates through the connecting hole, the air pipe is in sealed and fixed connection with the inner wall of the connecting hole, and the air suction pump is arranged on the air pipe.

The drilling equipment with the protection function for the precision machining has the advantages that the protection function is achieved through the protection mechanism, the damage to machining personnel caused by splashed fragments is avoided, compared with the existing protection mechanism, the protection mechanism also has the function of collecting the fragments, the practicability is higher, and besides, the damage to the surface of a workpiece caused by rigid acting force is avoided through the fixing mechanism.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of a drilling apparatus with a guard function for precision machining according to the present invention;

fig. 2 is a sectional view of a bottom case of the drilling apparatus with a shield function for precision machining according to the present invention;

FIG. 3 is a schematic structural view of a fixing mechanism of the drilling apparatus with a guard function for precision machining according to the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 2;

in the figure: 1. the air suction pump comprises a rack, 2 parts of a driving box, 3 parts of a drill bit, 4 parts of a bottom box, 5 parts of a fixed pipe, 6 parts of a moving plate, 7 parts of a connecting rod, 8 parts of a protective pipe, 9 parts of a power motor, 10 parts of a screw rod, 11 parts of a sliding block, 12 parts of a connecting line, 13 parts of a fixed pulley, 14 parts of a sliding rod, 15 parts of a supporting block, 16 parts of a spring, 17 parts of a limiting block, 18 parts of an electromagnet, 19 parts of a rubber block, 20 parts of an air pipe and 21 parts.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1, a drilling device with a protection function for precision machining comprises a frame 1, a driving box 2, a drill bit 3 and a bottom box 4, wherein the driving box 2 and the bottom box 4 are both arranged on the same side of the frame 1, the drill bit 3 is arranged at the bottom of the driving box 2, a driving device and a moving device are arranged in the driving box 2, the driving device is in transmission connection with the drill bit 3, and a protection mechanism and a fixing mechanism are arranged in the bottom box 4;

place the top of under casing 4 with the work piece, make drill bit 3 rotate through drive arrangement, make drill bit 3 remove towards being close to the work piece direction through mobile device to realize drilling, here, the effect that sets up protection machanism avoids the piece that splashes to cause the injury to the processing personnel, has realized the function of protection, and the effect that sets up fixed establishment avoids the work piece impaired at fixed in-process.

As shown in fig. 2-3, the fixing mechanism includes a fixed tube 5, a moving plate 6, a link 7 and a transmission assembly, the bottom of the bottom box 4 is provided with a through hole which is coaxial with the drill bit 3, the fixed tube 5 is coaxial with the through hole, the aperture of the through hole is larger than the outer diameter of the fixed pipe 5, the inner diameter of the fixed pipe 5 is larger than the diameter of the drill bit 3, one end of the fixed pipe 5 far away from the driving box 2 is fixedly connected with the bottom in the bottom box 4 through a connecting rod 7, the distance between the other end of the fixed pipe 5 and the driving box 2 is smaller than the distance between the bottom box 4 and the driving box 2, the moving plate 6 is vertical to the drill bit 3, the moving plate 6 is arranged in the fixed tube 5, the moving plate 6 is connected with the inner wall of the fixed tube 5 in a sliding and sealing way, the transmission assembly is arranged on one side of the moving plate 6 far away from the drill bit 3 and drives the moving plate 6 to move along the axial direction of the fixed pipe 5;

the protection mechanism includes protecting tube 8 and two power components, protecting tube 8 sets up with the through-hole is coaxial, the external diameter of protecting tube 8 equals with the aperture of through-hole, the internal diameter of protecting tube 8 is greater than the external diameter of fixed pipe 5, protecting tube 8 passes the through-hole, protecting tube 8 slides and sealing connection with the inner wall of through-hole, protecting tube 8 sets up between two power components, power component drive protecting tube 8 is along the axial displacement of protecting tube 8.

Place the one end that is close to drive box 2 and the laminating of fixed pipe 5 with the work piece, make movable plate 6 remove towards keeping away from drive box 2 direction through drive assembly, thereby make the air pressure between work piece and the movable plate 6 reduce, make the work piece adsorb under the effect of atmospheric pressure on fixed pipe 5, the effect of fixed work piece has been played, and simultaneously, make protective tube 8 remove towards being close to drive box 2 direction through power assembly, make the work piece be located protective tube 8, can block the piece that splashes through protective tube 8, and make the piece drop in the end box 4.

Preferably, in order to drive the protective tube 8 to move, the power assembly comprises a power motor 9, a screw rod 10 and a sliding block 11, the screw rod 10 is parallel to the drill bit 3, the power motor 9 is fixed at the top in the bottom box 4, the power motor 9 is in transmission connection with the screw rod 10, the sliding block 11 is sleeved on the screw rod 10, a thread matched with the screw rod 10 is arranged at the joint of the sliding block 11 and the screw rod 10, and the sliding block 11 is fixedly connected with the protective tube 8.

The screw rod 10 is rotated by the operation of the power motor 9, the slide block 11 is moved on the screw rod 10 by the rotation of the screw rod 10, and therefore the slide block 11 drives the protective pipe 8 to move.

Preferably, in order to reduce the friction between the screw 10 and the slider 11, the screw 10 is coated with a lubricating oil.

The lubricating oil is used for reducing the friction force between the screw rod 10 and the sliding block 11 and improving the moving fluency of the sliding block 11.

Preferably, in order to drive the moving plate 6 to move, the transmission assembly comprises a reset unit and two transmission units, the reset unit is located between the two transmission units, the transmission units comprise a connecting line 12 and a fixed pulley 13, one end of the connecting line 12 is fixed on the inner wall of the protective tube 8, the other end of the connecting line 12 is fixed on the moving plate 6 by bypassing the fixed pulley 13, and the fixed pulley 13 is fixed at the bottom in the bottom box 4.

When the protective tube 8 moves towards the direction close to the driving box 2, the protective tube 8 drives the moving plate 6 to move towards the direction far away from the driving box 2 through the connecting line 12, when the protective tube 8 moves towards the direction far away from the driving box 2, the connecting line 12 is loosened, the moving plate 6 moves towards the direction close to the driving box 2 under the action of the reset unit, and the function of driving the moving plate 6 to move is achieved.

Preferably, the material of the connecting line 12 is a steel wire rope in order to prolong the service life of the connecting line 12.

The steel wire rope has high strength and is not easy to break, and the service life of the connecting wire 12 is prolonged.

Preferably, in order to realize the function of resetting the moving plate 6, the resetting unit comprises a sliding rod 14, a supporting block 15 and a spring 16, the sliding rod 14 and the drill bit 3 are coaxially arranged, the sliding rod 14 is fixedly connected with the moving plate 6, the supporting block 15 is sleeved on the sliding rod 14, the supporting block 15 is fixedly connected with the inner wall of the fixed tube 5, the spring 16 is located between the supporting block 15 and the moving plate 6, and the supporting block 15 is connected with the moving plate 6 through the spring 16.

When the moving plate 6 moves towards the direction far away from the driving box 2, the moving plate 6 moves to drive the sliding rod 14 to move on the supporting block 15 and compress the spring 16, when the protective tube 8 moves towards the direction far away from the driving box 2, the connecting line 12 is loosened, the moving plate 6 moves towards the direction close to the driving box 2 under the elastic action of the spring 16, and the function of resetting the moving plate 6 is realized.

Preferably, in order to avoid the separation of the moving plate 6 from the fixed tube 5, the sliding rod 14 is provided with a limit block 17, the limit block 17 is fixed at one end of the sliding rod 14 far away from the moving plate 6, and the distance between the limit block 17 and the support block 15 is smaller than the distance between the moving plate 6 and one end of the fixed tube 5 close to the driving box 2.

The limiting block 17 is used for preventing the moving plate 6 from being separated from the fixed tube 5 due to the fact that the moving plate 6 excessively moves towards the direction close to the driving box 2, and the limiting effect is achieved.

Preferably, in order to improve the fixing effect, at least two electromagnets 18 are arranged on the inner wall of the fixed tube 5 close to one end of the driving box 2, the electromagnets 18 are circumferentially and uniformly distributed by taking the axis of the fixed tube 5 as a center, and the electromagnets 18 are arranged on one side of the moving plate 6 close to the driving box 2.

The electromagnet 18 is electrified to generate the mutual attraction acting force between the electromagnet 18 and the irregular workpiece made of iron and the like, so that the effect of fixing the workpiece is improved.

Preferably, in order to improve the sealing performance between the workpiece and the fixed pipe 5, a rubber block 19 is arranged at one end of the fixed pipe 5 close to the driving box 2, and the rubber block 19 is laid on the fixed pipe 5.

The rubber texture is softer and is easily extruded, can reduce the space between fixed pipe 5 and the work piece, improves the leakproofness.

As shown in fig. 4, an auxiliary unit is arranged on the bottom case 4, the auxiliary unit includes an air pipe 20 and an air pump 21, a connection hole is arranged on the bottom case 4, the air pipe 20 penetrates through the connection hole, the air pipe 20 is hermetically and fixedly connected with the inner wall of the connection hole, and the air pump 21 is installed on the air pipe 20.

In this equipment drilling process, the air in the under casing 4 is bled through aspiration pump 21 and is discharged from trachea 20, makes the air in the protective tube 8 get into in the under casing 4, can be convenient for the piece through the directional flow of air and fall into in the under casing 4, can also promote the radiating effect of drill bit 3 simultaneously.

The use method of the device comprises the following steps:

placing a workpiece on one end, close to the driving box 2, of the fixed tube 5 and attaching the workpiece, enabling the screw rod 10 to rotate through the operation of the power motor 9, enabling the slide block 11 to move on the screw rod 10 through the rotation of the screw rod 10, enabling the slide block 11 to drive the protective tube 8 to move towards the direction close to the driving box 2, enabling the protective tube 8 to move to drive the moving plate 6 to move towards the direction far from the driving box 2 through the connecting wire 12, enabling the air pressure between the workpiece and the moving plate 6 to be reduced, enabling the workpiece to be adsorbed on the fixed tube 5 under the action of air pressure, playing a role of fixing the workpiece, enabling the moving plate 6 to move the slide rod 14 on the supporting block 15 through the movement of the moving plate 6, enabling the spring 16 to be compressed, enabling the drill bit 3 to rotate through the driving device, enabling the drill bit 3;

after drilling is finished, the driving motor enables the screw rod 10 to rotate reversely, so that the slide block 11 drives the protective tube 8 to reset, the connecting line 12 is loosened, the moving plate 6 moves towards the direction close to the driving box 2 under the elastic action of the spring 16, and a workpiece is convenient to take down;

here, the workpiece is fixed in a vacuum suction manner, so that the workpiece can be prevented from being subjected to rigid acting force, the surface of the workpiece can be prevented from being damaged, splashed chips are blocked by the protective tube 8, and the chips fall into the bottom box 4, so that a protective function is achieved.

Compared with the prior art, this a drilling equipment for precision machining who has safeguard function has played the function of protection through protection machanism, and the piece of avoiding splashing causes the injury to the processing personnel, compares with current protection machanism, and this protection machanism has still possessed and has collected clastic function, and the practicality is stronger, moreover, still avoids the workpiece surface to receive the rigidity effort and impaired through fixed establishment, compares with current fixed establishment, and this fixed establishment simple structure, the cost is lower.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A drilling device with a protection function for precision machining comprises a rack (1), a driving box (2), a drill bit (3) and a bottom box (4), wherein the driving box (2) and the bottom box (4) are arranged on the same side of the rack (1), the drill bit (3) is arranged at the bottom of the driving box (2), a driving device and a moving device are arranged in the driving box (2), and the driving device is in transmission connection with the drill bit (3), and is characterized in that a protection mechanism and a fixing mechanism are arranged in the bottom box (4);

the fixing mechanism comprises a fixing pipe (5), a moving plate (6), a connecting rod (7) and a transmission assembly, a through hole is formed in the bottom of the bottom box (4), the through hole is coaxially arranged with the drill bit (3), the fixing pipe (5) is coaxially arranged with the through hole, the aperture of the through hole is larger than the outer diameter of the fixing pipe (5), the inner diameter of the fixing pipe (5) is larger than the diameter of the drill bit (3), one end, far away from the driving box (2), of the fixing pipe (5) is fixedly connected with the bottom of the bottom box (4) through the connecting rod (7), the distance between the other end of the fixing pipe (5) and the driving box (2) is smaller than the distance between the bottom box (4) and the driving box (2), the moving plate (6) is perpendicular to the drill bit (3), the moving plate (6) is arranged in the fixing pipe (5), and the inner wall of the moving plate (6) and the fixing pipe (5) slides and is connected in a, the transmission assembly is arranged on one side, far away from the drill bit (3), of the moving plate (6), and drives the moving plate (6) to move along the axial direction of the fixed pipe (5);

the protection mechanism comprises a protection pipe (8) and two power assemblies, the protection pipe (8) and a through hole are coaxially arranged, the outer diameter of the protection pipe (8) is equal to the aperture of the through hole, the inner diameter of the protection pipe (8) is larger than the outer diameter of the fixed pipe (5), the protection pipe (8) penetrates through the through hole, the protection pipe (8) and the inner wall of the through hole are in sliding and sealing connection, the protection pipe (8) is arranged between the two power assemblies, and the power assemblies drive the protection pipe (8) to move along the axial direction of the protection pipe (8);

the transmission assembly comprises a reset unit and two transmission units, the reset unit is located between the two transmission units, each transmission unit comprises a connecting line (12) and a fixed pulley (13), one end of each connecting line (12) is fixed on the inner wall of the corresponding protective tube (8), the other end of each connecting line (12) is fixed on the corresponding movable plate (6) by bypassing the corresponding fixed pulley (13), and the fixed pulleys (13) are fixed at the bottom of the bottom box (4).

2. The drilling equipment with the protection function for the precision machining according to claim 1, wherein the power assembly comprises a power motor (9), a screw rod (10) and a sliding block (11), the screw rod (10) is parallel to the drill bit (3), the power motor (9) is fixed at the top in the bottom box (4), the power motor (9) is in transmission connection with the screw rod (10), the sliding block (11) is sleeved on the screw rod (10), a thread matched with the screw rod (10) is arranged at the joint of the sliding block (11) and the screw rod (10), and the sliding block (11) is fixedly connected with the protection pipe (8).

3. The drilling equipment with a guarding function for precision machining according to claim 2, characterized in that the screw (10) is coated with a lubricating oil.

4. The drilling equipment with the protection function for the precision machining according to claim 1, characterized in that the material of the connecting wire (12) is a steel wire rope.

5. The drilling apparatus with the protection function for precision machining according to claim 1, wherein the reset unit comprises a slide bar (14), a support block (15) and a spring (16), the slide bar (14) is coaxially arranged with the drill bit (3), the slide bar (14) is fixedly connected with the moving plate (6), the support block (15) is sleeved on the slide bar (14), the support block (15) is fixedly connected with the inner wall of the fixed tube (5), the spring (16) is located between the support block (15) and the moving plate (6), and the support block (15) is connected with the moving plate (6) through the spring (16).

6. The drilling apparatus with a protection function for precision machining according to claim 5, characterized in that the slide bar (14) is provided with a stopper (17), the stopper (17) is fixed at one end of the slide bar (14) far from the moving plate (6), and the distance between the stopper (17) and the supporting block (15) is smaller than the distance between the moving plate (6) and one end of the fixed tube (5) near the driving box (2).

7. The drilling equipment with the protection function for the precision machining according to claim 1, characterized in that the inner wall of the fixed pipe (5) near one end of the driving box (2) is provided with at least two electromagnets (18), the electromagnets (18) are circumferentially and uniformly distributed with the axis of the fixed pipe (5) as the center, and the electromagnets (18) are arranged on one side of the moving plate (6) near the driving box (2).

8. The drilling equipment with protection function for precision machining according to claim 1, characterized in that the end of the fixed pipe (5) close to the driving box (2) is provided with a rubber block (19), and the rubber block (19) is laid on the fixed pipe (5).

9. The drilling apparatus with a protection function for precision machining according to claim 1, wherein an auxiliary unit is provided on the bottom case (4), the auxiliary unit comprises an air pipe (20) and an air suction pump (21), a connection hole is provided on the bottom case (4), the air pipe (20) passes through the connection hole, the air pipe (20) is hermetically and fixedly connected with an inner wall of the connection hole, and the air suction pump (21) is installed on the air pipe (20).