CN210877733U

CN210877733U - Drilling machine convenient to change drill bit

Info

Publication number: CN210877733U
Application number: CN201921861174.1U
Authority: CN
Inventors: 胡琼
Original assignee: Jinhua Buyun Electromechanical Equipment Co ltd
Current assignee: Jinhua Buyun Electromechanical Equipment Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-06-30
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses a drilling machine convenient to change drill bit aims at solving the drilling machine and need frequently change the drill bit sometimes, but the drill bit of a lot of drilling machines is changed very inconveniently, leads to the problem that work efficiency is low. The key points of the technical scheme are as follows: the utility model provides a drilling machine convenient to change drill bit, including the drilling machine body, the drilling machine body is including headstock and connector, be provided with the drill bit on the connector, be provided with the cavity in the connector, be provided with the clamping mechanism who is used for pressing from both sides tight drill bit in the cavity, clamping mechanism is including the splint and the L shape pole of two symmetric distributions, splint rotate with the one end of L shape pole and are connected, the turning department of L shape pole rotates with the inner wall of cavity to be connected, be provided with the inner chamber in the connector, the inner chamber communicates with each other with the cavity, the intracavity is provided with and is used for driving the rotatory. The utility model discloses a drilling machine convenient to change drill bit can be convenient change the drill bit, has improved the work efficiency of drilling machine.

Description

Drilling machine convenient to change drill bit

Technical Field

The utility model relates to a drilling machine, more specifically say, it relates to a drilling machine convenient to change drill bit.

Background

The drilling machine is a machine tool which mainly uses a drill to machine a hole on a workpiece. Usually, the drill bit rotates to main motion, and drill bit axial displacement is feed motion, and drilling machine simple structure, the machining precision is relatively lower, can bore through-hole, blind hole, changes special cutter, can expand, counter bore, ream or carry out processing such as tapping. The drill bit need be used to the drilling machine when processing parts, and different drill bits need be used to different parts, consequently can appear the phenomenon that needs to change the drill bit, and the most structure of current drilling machine is complicated, and the drill bit is inconvenient to be dismantled, when changing the drill bit in order to change the size of drilling, often will spend more time, has produced certain influence to the machining efficiency of drilling machine.

To above-mentioned problem, the drilling machine of kind of being convenient for change drill bit that chinese patent publication number is CN208146956U, including the drilling machine body, the drilling machine body includes the connector, the bottom of connector is seted up flutedly, first constant head tank has all been seted up to fluted cavity's front side and rear side, the inner chamber of recess is provided with the drill bit body, the draw-in groove has all been seted up at the top of drill bit body both sides, the equal fixedly connected with of front side and the rear side of drill bit body and the first locating piece that first constant head tank cooperation was used.

Above-mentioned scheme is through setting up the drilling machine body, the connector, the drill bit body, a housing, the kelly, a spring, the pull ring, the draw-in groove, the second constant head tank, the second locating piece, first constant head tank, a recess, first locating piece, fixed cover, the sliding sleeve, the slide bar, the adapter sleeve, the second fixed block, the connecting rod, the cooperation of first fixed block and extension spring is used, the problem of current drilling machine change drill bit not convenient for has been solved, this drilling machine of change drill bit of being convenient for possesses the advantage of being convenient for change drill bit.

Simultaneously the utility model provides a new scheme solves this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a drilling machine convenient to change drill bit through set up cavity and inner chamber in the connector to set up clamping device and drive arrangement in cavity and inner chamber, reach the convenient purpose of changing the drill bit.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a drilling machine convenient to change drill bit, includes the drilling machine body, the drilling machine body is including headstock and connector, be provided with the drill bit on the connector, be provided with the cavity in the connector, be provided with the clamping mechanism who is used for pressing from both sides tight drill bit in the cavity, clamping mechanism is including the splint and the L shape pole of two symmetric distributions, splint with the one end of L shape pole is rotated and is connected, the turning department of L shape pole with the inner wall of cavity rotates and connects, be provided with the inner chamber in the connector, the inner chamber with the cavity communicates with each other, the intracavity is provided with and is used for driving the rotatory drive arrangement of L shape pole.

Through adopting above-mentioned technical scheme, when needing to change the drill bit on the connector, the one end that drive device through the inner chamber drives L shape pole and splint and is connected is rotatory to the one side of keeping away from splint, two splint will loosen to both sides, just can take off the drill bit of clamp in the middle of two splint, then insert the connector with the one end of the drill bit of new specification, make it be located between two splint, then the one end that drives L shape pole and splint through drive device and be connected turns to the one side that is close to the drill bit, two splint will be close to middle drill bit under the drive of L shape pole, it is tight until will be located the drill bit of two splint centre and press from both sides, press from both sides tightly through splint and loosen and just can accomplish a change to the drill bit, make the change of drill bit more convenient, the work efficiency of drilling machine.

The utility model discloses further set up to: the drive arrangement is including electric putter and installation piece, the output shaft of electric putter and motor, the installation piece with electric putter fixed connection, be provided with one end rather than the dwang of rotating the connection on the installation piece, the dwang with the inner wall of inner chamber is connected through the pivot, the other end of dwang is provided with presses the briquetting, the other end of L shape pole is provided with the fixture block, press the briquetting with the fixture block is close to one side conflict of splint, splint with be provided with reset spring between the inner wall of cavity.

By adopting the technical scheme, when two clamping plates are loosened, the electric push rod is started by the motor to move the mounting block upwards, the rotating rod can rotate around the connecting part of the rotating shaft of the rotating rod and the cavity after the mounting block moves upwards, one ends of the two rotating rods, which are far away from the mounting block, can approach each other, and can drive the pressing block to move towards one side close to the clamping plate, a movable space is formed between the inner wall of the cavity and the pressing block originally, the L-shaped rod can rotate, the reset spring between the clamping plate and the inner wall of the cavity can be contracted to pull the clamping plate towards two sides of the cavity, when the clamping plate is clamped towards the middle, the mounting block is pushed downwards by the electric push rod, the mounting block can drive the rotating rod to rotate towards the opposite direction, the pressing block on the rotating rod can press the clamping block between the inner wall of the cavity and the pressing block again, one end that L shape pole and splint are connected will be close to the drill bit, just can drive two splint and press from both sides the drill bit tightly, and reset spring will stretch out and draw back, only needs just can drive electric putter through switch motor and stretch out and draw back and just can accomplish the change to the drill bit, convenient operation.

The utility model discloses further set up to: the mounting block is provided with a sliding block, and the inner cavity is provided with a sliding groove for the sliding block to insert.

Through adopting above-mentioned technical scheme, when the in-process that the installation piece reciprocated, the slider also can reciprocate in the spout thereupon, makes the installation piece more stable in removal in-process structure.

The utility model discloses further set up to: the inner wall of the sliding groove is provided with a plurality of first universal balls distributed in an array mode, and the first universal balls are attached to the surface of the sliding block.

Through adopting above-mentioned technical scheme, when the in-process that the slider reciprocated along the spout, universal ball rolled along the surface of slider for a moment, has reduced the friction between slider and the spout, makes the removal of slider more smooth and easy.

The utility model discloses further set up to: the reset spring is externally provided with a limiting device, the limiting device comprises a limiting sleeve and an inserting rod, one end of the inserting rod is fixedly connected with the clamping plate, the other end of the inserting rod is inserted into the limiting sleeve, the limiting sleeve is fixedly connected with the inner wall of the cavity, and two ends of the reset spring are respectively fixedly connected with the inserting rod and the limiting sleeve.

Through adopting above-mentioned technical scheme, stop device can restrict reset spring's position, prevents that reset spring from producing great the bending type and causing reset spring's damage at flexible in-process, has prolonged reset spring's life, and at the flexible in-process of reset spring, the inserted bar can remove along with reset spring along the inner wall of stop collar, makes reset spring more stable at flexible in-process structure.

The utility model discloses further set up to: and the inserted link is provided with a limiting block.

Through adopting above-mentioned technical scheme, when the end of pressing the briquetting is contradicted with the end of fixture block, the stopper can just contradict with the outer wall of stop collar, prevents to break away from out according to briquetting and fixture block pivoted in-process.

The utility model discloses further set up to: the inner wall of the limiting sleeve is provided with a plurality of universal ball II distributed in an array mode, and the universal ball II is attached to the surface of the inserted rod.

Through adopting above-mentioned technical scheme, at the in-process that the inserted bar removed along the stop collar, universal ball two can roll along the surface of inserted bar, has reduced the friction between inserted bar and the stop collar, makes the removal of inserted bar more smooth and easy.

The utility model discloses further set up to: one side of the clamping plate for clamping the drill bit is provided with a rubber pad, and a plurality of bulges distributed in an array are arranged on the rubber pad.

Through adopting above-mentioned technical scheme, the rubber pad has certain elasticity, can prevent that the in-process of splint centre gripping from causing the damage to the drill bit, and the arch has strengthened the friction between splint and the drill bit simultaneously, makes the centre gripping of drill bit more firm.

To sum up, the utility model discloses following beneficial effect has:

firstly, the drill bit can be replaced by clamping and loosening the clamping plate, so that the drill bit is more convenient to replace, and the working efficiency of the drilling machine is improved;

secondly, when the sliding block moves up and down along the sliding groove, the universal ball rolls along the surface of the sliding block for a while, so that the friction between the sliding block and the sliding groove is reduced, and the sliding block moves more smoothly;

thirdly, the position of the reset spring can be limited by the limiting device, the reset spring is prevented from being damaged due to large bending in the expansion process, the service life of the reset spring is prolonged, and the inserted rod can move along with the reset spring along the inner wall of the limiting sleeve in the expansion process of the reset spring, so that the structure of the reset spring is more stable in the expansion process;

fourthly, when the end of the pressing block is abutted against the end of the clamping block, the limiting block can be abutted against the outer wall of the limiting sleeve just, and the pressing block and the clamping block are prevented from being separated from each other in the rotating process.

Drawings

Fig. 1 is a schematic structural view of the clamping plate of the present invention, showing the structure of the clamping mechanism and the driving device when clamping;

FIG. 2 is a schematic structural view of the clamping plate of the present invention when loosened, showing the structure of the clamping mechanism and the driving device when loosened;

FIG. 3 is an enlarged view of the portion A of FIG. 1, showing the internal structure of the stopper;

fig. 4 is a schematic structural diagram of the driving device in the present invention, showing the structure of the driving device.

In the figure: 1. a connector; 2. a cavity; 3. a clamping mechanism; 4. a splint; 5. an L-shaped rod; 6. an inner cavity; 7. a driving device; 8. an electric push rod; 9. mounting blocks; 10. rotating the rod; 11. a pressing block; 12. a clamping block; 13. a return spring; 14. a slider; 15. a chute; 16. a first universal ball; 17. a limiting device; 18. a limiting sleeve; 19. inserting a rod; 20. a limiting block; 21. a second universal ball; 22. a rubber pad; 23. and (4) protruding.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

The utility model provides a drilling machine convenient to change drill bit, as shown in fig. 1-4, including the drilling machine body, the drilling machine body is including headstock and connector 1, connector 1 is installed on the headstock, be equipped with the drill bit on the connector 1, set up cavity 2 in the connector 1, cavity 2 switches on with the external world, be equipped with the clamping mechanism 3 that is used for pressing from both sides tight drill bit in the cavity 2, clamping mechanism 3 is including splint 4 and the L shape pole 5 of two symmetric distributions, splint 4 is used for pressing from both sides tight one side of drill bit and is equipped with rather than the rubber pad 22 of bonding through binding material and fixing, be equipped with the arch 23 of a plurality of array distributions on the rubber pad 22, splint 4 is connected through the pivot rotation with the one end of L shape pole 5, the turning department of L shape pole 5 is connected through the pivot rotation with the inner wall of cavity 2, interior chamber 6 has been seted up in the connector 1, interior chamber 6.

The driving device 7 comprises an electric push rod 8 and an installation block 9, the electric push rod 8 is connected with an output shaft of a motor, the installation block 9 is welded and fixed with the electric push rod 8, a slide block 14 welded and fixed with the installation block 9 is arranged on the installation block 9, a sliding groove 15 for the slide block 14 to insert and move is arranged on the inner cavity 6, a plurality of array-distributed universal balls 16 are arranged on the inner wall of the sliding groove 15, the universal balls 16 are attached to the surface of the slide block 14, a rotating rod 10 with one end rotatably connected with the installation block 9 through a rotating shaft is arranged on the installation block, the middle part of the rotating rod 10 is connected with the inner wall of the inner cavity 6 through the rotating shaft, the other end of the rotating rod 10 extends into the cavity 2 and is provided with a pressing block 11 welded and fixed with the pressing block, a clamping block 12 is arranged at one end of the L-shaped rod 5 far away from the clamping plate 4, the clamping block 12 is welded, two ends of the return spring 13 are respectively welded and fixed with the inner wall of the cavity 2 and the clamping plate 4.

As shown in fig. 3, a limiting device 17 is sleeved outside the return spring 13, the limiting device 17 comprises a limiting sleeve 18 and an insertion rod 19, one end of the insertion rod 19 is welded and fixed with the clamping plate 4, the other end of the insertion rod 19 is inserted into the limiting sleeve 18, the limiting sleeve 18 is welded and fixed with the inner wall of the cavity 2, two ends of the return spring 13 are respectively welded and fixed with the insertion rod 19 and the limiting sleeve 18, a plurality of universal balls two 21 distributed in an array are arranged on the inner wall of the limiting sleeve 18, and the universal balls two 21 are attached to the surface of the insertion rod 19.

The inserting rod 19 is provided with a limiting block 20 welded and fixed with the inserting rod, when the L-shaped rod 5 rotates to the position where the tail end of the clamping block 12 is abutted against the tail end of the pressing block 11, the limiting block 20 can be just clamped at the opening of the limiting sleeve 18, and the L-shaped rod 5 can not continue to rotate.

When the drill bit is to be replaced, the electric push rod 8 is started through the motor, the installation block 9 is driven to move upwards through the electric push rod 8, the installation block 9 can drive the rotating rods 10 to rotate around the rotating shaft connecting part of the rotating rods 10 and the inner cavity 6 after moving upwards, one ends of the two rotating rods 10 far away from the installation block 9 are close to each other, the pressing block 11 can be driven to move towards one side close to the clamping plate 4, the clamping block 12 which is originally tightly clamped between the inner wall of the cavity 2 and the pressing block 11 has a movable rotating space, the L-shaped rod 5 can rotate, the reset spring 13 between the clamping plate 4 and the inner wall of the cavity 2 can be contracted, the inserting rod 19 can be inserted into the limiting sleeve 18, the L-shaped rod 5 can pull the clamping plate 4 towards the two sides of the cavity 2, the drill bit in the middle of the two clamping plates 4 can be taken out, when the clamping plate 4 is loosened to the maximum, the tail end of the clamping, stopper 20 can block at the opening part of stop collar 18 this moment, make L shape pole 5 unable to continue to rotate again, prevent that fixture block 12 and pressing briquetting 11 from can separating, when will pressing from both sides new drill bit tight again, promote installation piece 9 downwards through electric putter 8, installation piece 9 can drive dwang 10 rotatory to the opposite direction, pressing briquetting 11 on the dwang 10 will press fixture block 12 between the inner wall of cavity 2 and pressing briquetting 11 again, fixture block 12 will drive L shape pole 5 rotatory, the one end that L shape pole 5 and splint 4 are connected will be close to the drill bit, just can drive two splint 4 and press from both sides the drill bit tight, reset spring 13 will stretch out, just so only need to start electric putter 8 through the motor and just can accomplish the change and the clamp to the drill bit tightly, make the change of drill bit more convenient, the work efficiency of drilling machine has been improved.

Meanwhile, in the process that the mounting block 9 moves up and down along the inner cavity 6, the sliding block 14 moves up and down in the sliding groove 15 along with the mounting block, so that the structure of the mounting block 9 is more stable in the moving process, in the moving process of the sliding block 14, the first universal ball 16 rolls along the surface of the sliding block 14, the friction between the sliding block 14 and the sliding groove 15 is reduced, so that the sliding block 14 moves more smoothly, the position of the return spring 13 can be limited by the limiting device 17, the return spring 13 is prevented from being greatly bent in the stretching process to cause the damage to the return spring 13, the service life of the return spring 13 is prolonged, in the moving process of the inserted link 19 along the limiting sleeve 18, the second universal ball 21 rolls along the surface of the inserted link 19, the friction between the inserted link 19 and the limiting sleeve 18 is reduced, so that the inserted link 19 moves more smoothly, the rubber pad 22 has certain elasticity, and can prevent the drill bit from being damaged in the clamping process of the clamping plate 4, meanwhile, the bulge 23 enhances the friction between the clamping plate 4 and the drill bit, so that the drill bit is clamped more stably.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a drilling machine convenient to change drill bit, includes the drilling machine body, the drilling machine body is including headstock and connector (1), be provided with the drill bit on connector (1), be provided with cavity (2) in connector (1), be provided with clamping mechanism (3) that are used for pressing from both sides tight drill bit in cavity (2), its characterized in that: clamping mechanism (3) including splint (4) and the L shape pole (5) of two symmetric distributions, splint (4) with the one end of L shape pole (5) is rotated and is connected, the turn department of L shape pole (5) with the inner wall of cavity (2) is rotated and is connected, be provided with inner chamber (6) in connector (1), inner chamber (6) with cavity (2) communicate with each other, be provided with in inner chamber (6) and be used for driving the rotatory drive arrangement (7) of L shape pole (5).

2. The drill press of claim 1, wherein the drill bit is replaceable by: drive arrangement (7) including electric putter (8) and installation piece (9), electric putter (8) and the output shaft of motor, installation piece (9) with electric putter (8) fixed connection, be provided with dwang (10) that one end is connected rather than rotating on installation piece (9), dwang (10) with the inner wall of inner chamber (6) is connected through the pivot, the other end of dwang (10) is provided with presses briquetting (11), the other end of L shape pole (5) is provided with fixture block (12), press briquetting (11) with fixture block (12) are contradicted near one side of splint (4), splint (4) with be provided with reset spring (13) between the inner wall of cavity (2).

3. A drill press for facilitating bit replacement according to claim 2, wherein: the mounting block (9) is provided with a sliding block (14), and the inner cavity (6) is provided with a sliding groove (15) for the sliding block (14) to be inserted.

4. A drill press for facilitating bit replacement according to claim 3, wherein: the inner wall of the sliding groove (15) is provided with a plurality of first universal balls (16) distributed in an array mode, and the first universal balls (16) are attached to the surface of the sliding block (14).

5. A drill press for facilitating bit replacement according to claim 2, wherein: reset spring (13) are provided with stop device (17) outward, stop device (17) including stop collar (18) and inserted bar (19), the one end of inserted bar (19) with splint (4) fixed connection, the other end of inserted bar (19) inserts in stop collar (18), stop collar (18) with the inner wall fixed connection of cavity (2), reset spring's (13) both ends respectively with inserted bar (19) and stop collar (18) fixed connection.

6. The drill press of claim 5, wherein: and a limiting block (20) is arranged on the inserting rod (19).

7. The drill press of claim 5, wherein: the inner wall of the limiting sleeve (18) is provided with a plurality of second universal ball bearings (21) distributed in an array mode, and the second universal ball bearings (21) are attached to the surface of the inserted rod (19).

8. The drill press of claim 1, wherein the drill bit is replaceable by: one side of the clamping plate (4) for clamping the drill bit is provided with a rubber pad (22), and the rubber pad (22) is provided with a plurality of bulges (23) distributed in an array manner.