CN211249153U

CN211249153U - Numerical control lathe collet chuck clamping device

Info

Publication number: CN211249153U
Application number: CN201922096901.6U
Authority: CN
Inventors: 陈建伟
Original assignee: Suzhou Zhanyue Machinery Co ltd
Current assignee: Suzhou Zhanyue Machinery Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-08-14
Anticipated expiration: 2029-11-29

Abstract

The utility model relates to a numerical control lathe collet chuck clamping device, which comprises a collet chuck, wherein the collet chuck comprises an extension section and a fixed section, and further comprises a sleeve sleeved on the extension section, the outer wall of the extension section is provided with a snap ring, the inner wall of the sleeve is provided with a butting ring, and the device also comprises a spring sleeved on the extension section, and two ends of the spring are respectively butted on the butting ring and the snap ring, and the outer wall of the extension section and the inner wall of the sleeve are provided with threads; the inner wall of the sleeve tapers outwardly from adjacent the extension. The sleeve pipe rotates, sleeve pipe and extension section thread separation, establish under the effect at the bullet of spring after the separation, the sleeve pipe is to extension section department resilience, expose the canned paragraph, peg graft the tool bit etc. wherein owing to the body lateral wall is provided with logical groove and consequently has certain elasticity, drag the sleeve pipe forward afterwards and be the prepositioning process at this process, it connects on the canned paragraph soon to rotate the sleeve pipe to make it connect soon, because sleeve pipe inner wall thickness changes gradually, consequently at the in-process of connecting soon forward, reduce logical groove gradually, fix the tool bit etc. wherein tightly.

Description

Numerical control lathe collet chuck clamping device

Technical Field

The utility model relates to a machining device, in particular to numerical control lathe collet chuck tightens up device.

Background

The numerically controlled lathe is one of the widely used numerically controlled machine tools at present, it is mainly used for cutting processing of the inner and outer cylindrical surfaces of shaft parts or disk parts, inner and outer conical surfaces of any taper angle, complex rotary inner and outer curved surfaces, cylinders, conical threads, etc., and can perform grooving, drilling, reaming, boring, etc., and the collet chuck is also called as collet chuck, is a cylindrical fixture used for confining a drill bit or a milling cutter and installed on milling machine and numerically controlled lathe, is a fixing device used for fixing and reinforcing the parts to be reformed, and when installing the collet chuck, needs to use a clamping mechanism.

Most of the existing economic numerically controlled lathes adopt a sliding sleeve moving spring chuck clamping mode, and the device has the advantages of simple structure, convenience in assembly and disassembly and low cost. The clamping and loosening of the spring chuck are realized through the connection of a pull rod, the pull rod is connected with a claw seat, three claws are arranged on the claw seat and are uniformly distributed on the circumference of the claw seat, and the claws are opened and contracted to drive the pull rod to move back and forth through the back and forth movement of a sliding sleeve with a taper, which is arranged on a main shaft, so that the clamping and loosening of the spring chuck are realized.

The pull rod draws knot claw seat, three claws are equipped with on the claw seat, the equipartition is around the claw seat, through the back-and-forth movement of the tapered sliding sleeve of taking on the loading main shaft, make the claw open, contract and open and drive the pull rod back-and-forth movement, reach collet chuck and press from both sides tight the release, but current collet chuck can not stretch out and draw back, when changing the cutter, because can't see operating personnel and need touch with the hand, take off and change the stage property, the easy accidental injury, collet chuck that some cutters used can take place tiny rotation in the use in addition, leads to the work piece cutting untidy, causes the loss.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a numerical control lathe collet chuck clamping device.

The above technical purpose of the present invention can be achieved by the following technical solutions: the numerical control lathe collet chuck clamping device comprises a collet chuck, wherein the collet chuck comprises an extension section and a fixed section, and further comprises a sleeve sleeved on the extension section, a snap ring is arranged on the outer wall of the extension section, a butting ring is arranged on the inner wall of the sleeve, and the device further comprises a spring sleeved on the extension section, two ends of the spring are respectively butted against the butting ring and the snap ring, and threads are arranged on the outer wall of the extension section and the inner wall of the sleeve; the inner wall of the sleeve is gradually thinned outwards from one end close to the extension section.

Preferably, the numerical control lathe further comprises a clamping piece which is connected with the spring chuck and is matched and inserted on a spindle hole of the numerical control lathe.

Preferably, the collet chuck comprises a pipe body and through grooves arranged on the pipe body in an array mode, and rubber anti-slip pads are arranged at positions, avoiding the through grooves, of the pipe body.

Preferably, three groups of through grooves are arranged in the center symmetry manner.

Preferably, the spring chuck is recessed to form a sliding groove at a position avoiding the through groove.

Preferably, the sliding device further comprises an abutting piece which is matched and plugged in the sliding groove, and a rubber non-slip mat is arranged on the surface of the abutting piece.

Preferably, the abutting part comprises a sliding strip matched with the sliding groove to slide and an abutting part body connected with the sliding strip, the abutting part body is cylindrical, and the abutting part is provided with a plurality of groups of different abutting part bodies, and the diameters of the groups of abutting part bodies are different.

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

when the device is used, the sleeve is rotated, the sleeve is separated from the extension section through threads, the sleeve rebounds towards the extension section under the elastic effect of the spring after separation, the front fixing section is exposed, the cutter head and the like are inserted into the sleeve, the through groove is formed in the side wall of the tube body, so that the sleeve has certain elasticity, the sleeve is pulled forwards, the pre-positioning process is adopted in the process, the sleeve is rotated to be screwed on the fixing section, and the through groove is gradually contracted in the process of screwing forwards due to the gradual change of the thickness of the inner wall of the sleeve, so that the cutter head and the like are tightly fixed in the through groove; secondly, the abutting parts with different sizes can be connected in the sliding groove in a sliding mode, so that the size of the spring chuck for clamping the tool bit can be adjusted.

Drawings

FIG. 1 is a sectional view of the entire structure in the embodiment;

FIG. 2 is a schematic diagram of a part of the structure in the example.

In the figure, 1, a spring chuck; 11. an extension section; 12. a fixed section; 13. a sleeve; 131. a butting ring; 111. a snap ring; 15. a clamping piece; 16. a pipe body; 161. a through groove; 162. a rubber non-slip mat; 163. a sliding groove; 164. a rubber non-slip mat; 165. a slide bar; 166. a butt piece body; 167. an abutment member.

Detailed Description

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

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Example (b):

a numerical control lathe collet chuck clamping device comprises a collet chuck 1, wherein the collet chuck 1 comprises an extension section 11 and a fixed section 12, and further comprises a sleeve 13 sleeved on the extension section 11, a clamping ring 111 is arranged on the outer wall of the extension section 11, a butting ring 131 is arranged on the inner wall of the sleeve 13, and further comprises a spring which is sleeved on the extension section 11, two ends of the spring are respectively butted against the butting ring 131 and the clamping ring 111, and threads are arranged on the outer wall of the extension section 11 and the inner wall of the sleeve 13; the inner wall of the sleeve 13 tapers outwardly from the end adjacent the extension 11.

As shown in fig. 1, the numerical control lathe further comprises a clamping piece 15 which is connected with the collet chuck 1 and is matched and inserted in a spindle hole of the numerical control lathe.

As shown in fig. 1 and 2, the collet 1 includes a tube 16 and through slots 161 arrayed on the tube 16, and a rubber anti-slip pad 162 is disposed at a position where the tube 16 avoids the through slots 161.

As shown in fig. 1, three sets of through slots 161 are arranged in a central symmetry manner.

As shown in fig. 1 and 2, the collet 1 is recessed to form a sliding groove 163 at a position avoiding the through groove 161.

As shown in fig. 1, the device further comprises an abutting piece 167 which is fittingly inserted into the sliding slot 163, and a rubber non-slip pad 162 is arranged on the surface of the abutting piece 167.

As shown in fig. 2, the abutment 167 includes a slide bar 165 fitted in the slide groove 163 for sliding, and an abutment body 166 connected to the slide bar 165, the abutment body 166 is cylindrical, and the abutment 167 is provided with a plurality of different sets, and the diameter of each set of abutment body 166 is different.

The working principle is as follows:

when the device is used, the sleeve 13 is rotated, the sleeve 13 is separated from the extension section 11 through threads, after separation, under the elastic effect of the spring, the sleeve 13 rebounds to the extension section 11 to expose the front fixed section 12, a cutter head and the like are inserted into the sleeve, the side wall of the pipe body 16 is provided with the through groove 161, so that certain elasticity is achieved, then the sleeve 13 is pulled forwards, the pre-positioning process is achieved, the sleeve 13 is rotated to be screwed on the fixed section 12, the thickness of the inner wall of the sleeve 13 gradually changes, and therefore the through groove 161 is gradually contracted in the process of screwing forwards, and the cutter head and the like are tightly fixed in the through groove 161; secondly, abutments 167 of different sizes can be slidably connected in the sliding slots 163 to adjust the size of the clamping bit in the collet 1.

Claims

1. The utility model provides a numerical control lathe collet chuck clamping device, includes collet chuck (1), its characterized in that: the spring chuck (1) comprises an extension section (11), a fixing section (12), a sleeve (13) sleeved on the extension section (11), a clamping ring (111) arranged on the outer wall of the extension section (11), a butting ring (131) arranged on the inner wall of the sleeve (13), a spring sleeved on the extension section (11) and with two ends respectively butted against the butting ring (131) and the clamping ring (111), and threads arranged on the outer wall of the extension section (11) and the inner wall of the sleeve (13); the inner wall of the sleeve (13) is gradually thinned outwards from one end close to the extension section (11).

2. The numerically controlled lathe collet chuck clamping device according to claim 1, wherein: the numerical control lathe is characterized by further comprising a clamping piece (15) which is connected with the spring chuck (1) and is matched and inserted in a spindle hole of the numerical control lathe in an inserting mode.

3. The numerically controlled lathe collet chuck clamping device according to claim 2, wherein: the spring chuck (1) comprises a pipe body (16) and through grooves (161) arranged on the pipe body (16) in an array mode, and rubber anti-slip pads (162) are arranged at positions, avoiding the through grooves (161), of the pipe body (16).

4. The numerically controlled lathe collet chuck clamping device according to claim 3, wherein: three groups of through grooves (161) are arranged in a central symmetry manner.

5. The numerically controlled lathe collet chuck clamping device according to claim 4, wherein: the spring chuck (1) is recessed to form a sliding groove (163) at a position avoiding the through groove (161).

6. The numerically controlled lathe collet chuck clamping device according to claim 5, wherein: the anti-slip device is characterized by further comprising an abutting part (167) which is inserted into the sliding groove (163) in a matching mode, and a rubber anti-slip pad (162) is arranged on the surface of the abutting part (167).

7. The numerically controlled lathe collet chuck clamping device according to claim 6, wherein: the abutting part (167) comprises a sliding strip (165) matched with the sliding groove (163) to slide and an abutting part body (166) connected with the sliding strip (165), the abutting part body (166) is cylindrical, and the abutting part (167) is provided with a plurality of groups of different and different radial lengths of each group of abutting part body (166).