CN210359337U

CN210359337U - Spring chuck type dustproof knife handle

Info

Publication number: CN210359337U
Application number: CN201921139114.9U
Authority: CN
Inventors: 阳纯东
Original assignee: Dongguan Jieya Cutting Tool Co Ltd
Current assignee: Dongguan Jieya Cutting Tool Co Ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-04-21
Anticipated expiration: 2029-07-18

Abstract

A spring chuck type dustproof knife handle comprises a knife handle main body, a spring chuck, a locking nut, a water stop ring, a first sealing rubber ring, a second sealing rubber ring and a third sealing rubber ring, wherein the front end of the locking nut is provided with a water stop ring fixing hole, the water stop ring is fixed in the water stop ring fixing hole, the water stop ring fixing hole is concavely provided with a first ring groove, a second ring groove is concavely arranged inside the water stop ring, the outer surface of the knife handle main body is concavely provided with a third ring groove, and the first sealing rubber ring, the second sealing rubber ring and the third sealing rubber ring are sequentially fixed in the first ring groove, the second ring groove and the third ring groove; make first sealed rubber ring, second sealed rubber ring, third sealed rubber ring seal lock nut and seal up the clearance between ring, cutter and the seal up ring, lock nut rear end and the handle of a knife main part respectively and die completely, keep apart dust and cinder bits in the handle of a knife outside completely, reduce the influence of dust and cinder bits to machining precision to increase the life of handle of a knife and lathe.

Description

Spring chuck type dustproof knife handle

Technical Field

The utility model relates to a numerical control handle of a knife technical field indicates a dustproof handle of a knife of collet chuck formula especially.

Background

Spring chuck handle of a knife extensively is used for numerical control cutter assembly technical field, current spring chuck handle of a knife includes handle of a knife main part, spring chuck, lock nut and handle of a knife main part one end surface threaded connection, spring chuck one end surface is the circular conical surface, the inside of handle of a knife main part screw thread one end is equipped with the circular conical bore that corresponds with spring chuck circular conical surface, spring chuck other end surface is equipped with another circular conical surface, the inside circular conical bore that corresponds with another circular conical surface of spring chuck that is equipped with of lock nut, spring chuck one end is through the circular conical surface and the inside circular conical bore elastic connection that corresponds of handle of a knife main part, lock nut supports the spring chuck other end.

The clamping process of the cutter is as follows: the cutter passes through the cutter hole and is clamped in the spring chuck inner hole, when the nut is screwed with the screw thread of the cutter handle main body, the spring chuck is an elastic piece, and the cutter handle main body presses the spring chuck through the conical surface, so that the cutter is clamped through the deformation of the spring chuck.

It can be easily seen that, there can be very little clearance between collet chuck and handle of a knife main part and collet chuck and the cutter, at machining, the graphite processing trade, ceramic machining, glass processing etc. have the course of working that more sediment bits and dust produced, sediment bits and dust can follow inside cutter and lock nut and the clearance entering handle of a knife between lock nut and the handle of a knife main part, thereby get into cutter and collet chuck junction, and inside the clearance entering handle of a knife between collet chuck and the handle of a knife main part, influence the cooperation precision of cutter and handle of a knife, thereby influence the machining precision of product, and reduce the life of handle of a knife and lathe.

Disclosure of Invention

In order to solve the problems, the utility model provides a collet chuck knife handle capable of isolating slag scraps and dust outside the knife handle, which comprises a knife handle main body, a collet chuck and a lock nut, wherein the front end of the lock nut is provided with a cutter hole, the rear end of the lock nut is provided with a knife handle hole, the cutter hole is communicated with the front part and the rear part of the knife handle hole, the front end of the lock nut is in threaded connection with the surface of the knife handle main body, the outer surface of one end of the collet chuck is provided with a first conical surface, the inside of the knife handle main body is provided with a first conical hole corresponding to the first conical surface, one end of the collet chuck is elastically connected with the first conical hole, the other end of the collet chuck is positioned in the lock nut, the collet chuck knife handle knife, the sealing ring is fixed in the sealing ring fixing hole, a first annular groove corresponding to the first sealing rubber ring is concavely arranged in the sealing ring fixing hole, a second annular groove corresponding to the second sealing rubber ring is concavely arranged on the inner wall of the sealing ring, a third annular groove corresponding to the third sealing rubber ring is concavely arranged on the outer surface of the handle body, the rear end of the locking nut axially extends, when the handle body is screwed with the locking nut, the third annular groove enters the locking nut, and the first sealing rubber ring, the second sealing rubber ring and the third sealing rubber ring are respectively fixed in the first annular groove, the second annular groove and the third annular groove.

Specifically, a second conical surface is arranged on the outer surface of the other end of the collet chuck, a second conical hole corresponding to the second conical surface is formed in the locking nut, and the locking nut fixes the other end of the collet chuck through the second conical hole.

The beneficial effects of the utility model reside in that: first sealed rubber ring prevents that dust and sediment bits from getting into the handle of a knife between seal ring and lock nut, and the sealed rubber ring of second prevents that dust and sediment bits from getting into the handle of a knife between cutter and the seal ring, and the sealed rubber ring of third prevents that dust and sediment bits from getting into the handle of a knife between handle of a knife main part and lock nut, can keep apart the dust outside the handle of a knife totally under the combined action of first annular, second annular, third annular, reduce the influence of dust and sediment bits to machining precision, and increase lathe and handle of a knife life.

Drawings

Fig. 1 is a front view of the knife handle of the utility model.

Fig. 2 is a front view of the knife handle body of the utility model.

Fig. 3 is a front view of the locking nut of the present invention.

Fig. 4 is a front view of the water stop ring of the present invention.

The reference numbers illustrate: 1. a knife handle main body; 2. locking the nut; 3. a collet chuck; 4. a water stop ring; 11. a third ring groove; 12. a third sealing rubber ring; 13. a first conical bore; 21. a water stop ring fixing hole; 22. a second conical bore; 23. sealing the hole; 211. a first ring groove; 212. a first sealing rubber ring; 31. a first conical surface; 32. a second conical surface; 41. a second ring groove; 42. and a second sealing rubber ring.

Detailed Description

Referring to fig. 1-a front view of a novel knife handle, the utility model relates to a dustproof and water-stop spring collet 3 knife handle, which comprises a knife handle main body 1, a spring collet 3 and a lock nut 2, wherein a tool hole is arranged at the front end of the lock nut 2, a knife handle hole is arranged at the rear end of the lock nut 2, the tool hole is communicated with the front and the rear of the knife handle hole, the front end of the lock nut 2 is in threaded connection with the surface of the knife handle main body 1, a first conical surface 31 is arranged on the outer surface of one end of the spring collet 3, a first conical hole 13 corresponding to the first conical surface 31 is arranged in the knife handle main body 1, one end of the spring collet 3 is elastically connected with the first conical hole 13, the other end of the spring collet 3 is positioned in the lock nut 2, the knife handle further comprises a water stop ring 4, a first sealing rubber ring 212, a second sealing rubber ring 42 and a third sealing rubber, and form sealing ring fixed orifices 21 in the inside of extension department, sealing ring 4 is fixed in sealing ring fixed orifices 21, sealing ring fixed orifices 21 are concave to be equipped with the first annular 211 that corresponds with first sealed rubber ring 212, sealing ring 4 is inside to be concave to be equipped with the second annular 41 that corresponds with second sealed rubber ring 42, handle of a knife main part 1 surface is concave to be equipped with the third annular 11 that corresponds with third sealed rubber ring 12, first sealed rubber ring 212, second sealed rubber ring 42, third sealed rubber ring 12 are fixed respectively in first annular 211, second annular 41, third annular 11, lock nut 2 rear end axial extension makes handle of a knife main part 1 and lock nut 2 screw, and third annular 11 gets into in the lock nut 2.

In this embodiment, the specifications of the first seal rubber ring 212 are as follows: the outer diameter phi 16 is multiplied by the inner diameter phi 13, and the specification of the second sealing rubber ring 42 is as follows: the outer diameter phi is 11.5 multiplied by the inner diameter phi 9.5, and the specification of the third sealing rubber ring 12 is as follows: the outer diameter phi 23 is multiplied by the inner diameter phi 21, and the inner diameters of the first sealing rubber ring 212, the second sealing rubber ring 42 and the third sealing rubber ring 12 are similar to the inner diameter of the corresponding ring groove, and the thicknesses of the first sealing rubber ring, the second sealing rubber ring and the third sealing rubber ring are slightly larger than the depth of the corresponding ring groove.

In the prior art, one end of a knife handle main body 1 is fixed on a machine tool, a first conical surface 31 end of a collet chuck 3 is inserted into a first conical hole 13 corresponding to the knife handle main body 1, a cutter passes through the cutter hole and is clamped in an inner hole of the collet chuck 3, when a locking nut 2 is screwed with the knife handle main body 1, the knife handle main body 1 presses the collet chuck 3 through the first conical surface 31, the collet chuck 3 deforms to clamp the cutter, the other end of the collet chuck 3 is positioned in the locking nut 2, the locking nut 2 is in threaded connection with the surface of the knife handle main body 1, the tightness between the collet chuck 3 and the knife handle main body 1 can be adjusted by rotating the locking nut 2, the collet chuck 2 is fixed at last, and the collet chuck 3, the locking nut 2 and the knife handle main body 1 form the whole knife handle,

compared with the prior art, one end of the second conical hole 22 of the locking nut 2 is additionally provided with a water stop ring fixing hole 21, a water stop ring 4 is fixed at the position of the water stop ring fixing hole 21, a first ring groove 211 is formed in the circumferential direction of the inner wall of the water stop ring fixing hole 21, a second ring groove 41 is formed in the circumferential direction of the inner surface of the water stop ring 4, a first sealing rubber ring 212 is arranged in the first ring groove 211, a second sealing rubber ring 42 is arranged in the second ring groove 41, the rear end of the locking nut 2 extends along the axial direction of the surface of the handle body 1, a sealing hole 33 is formed in the extending part, a third ring groove 11 is formed in the circumferential direction of the surface of the locking nut 2, a third sealing rubber ring 12 is arranged in the third ring groove 11, a cutter sequentially penetrates through a cutter hole of the water stop ring 4 and is clamped in an inner hole of the spring chuck 3, the first sealing rubber ring 212 is in close contact with the outer surface of the water stop ring 4, the, therefore, the gaps between the locking nut and the water stop ring 4, between the cutter and the water stop ring 4, and between the locking nut and the cutter handle main body 1 are completely sealed by the first sealing rubber ring 212, the second sealing rubber ring 42 and the third sealing rubber ring 12 respectively, dust and slag chips are completely isolated outside the cutter handle, the influence of the dust and the slag chips on the machining precision is reduced, and the service life of the cutter handle and the service life of a machine tool are prolonged.

Specifically, a second conical surface 32 is arranged on the outer surface of the other end of the collet chuck 3, a second conical hole 22 corresponding to the second conical surface 32 of the collet chuck 3 is arranged in the lock nut 2, and the lock nut 2 fixes the other end of the collet chuck 3 through the second conical hole 22.

In this embodiment, the second conical surface 32 and the second conical hole 22 are matched, so that the lock nut 2 can press one end of the second conical surface 32 of the collet chuck 3 against the second conical hole 22, thereby completely fixing and positioning the collet chuck 3.

The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the technical solution of the present invention by those skilled in the art are all within the scope of the present invention as defined by the claims.

Claims

1. The utility model provides a dustproof handle of a knife of collet formula, includes handle of a knife main part, collet chuck, lock nut, and the lock nut front end is equipped with the cutter hole, and the lock nut rear end is equipped with the handle of a knife hole, and cutter hole and handle of a knife hole front and back intercommunication, the lock nut front end and handle of a knife main part surface threaded connection, collet chuck one end surface is equipped with first circular conical surface, the inside first circular conical hole that corresponds with first circular conical surface that is equipped with of handle of a knife main part, collet chuck one end with first circular conical hole elastic connection, the collet chuck other end is fixed a position its characterized in that in lock nut: still include seal ring, first seal rubber ring, second seal rubber ring, third seal rubber ring, the lock nut front end axial extension to in extension department inside be equipped with the seal ring fixed orifices of cutter hole intercommunication, the seal ring is fixed in the seal ring fixed orifices, the concave first annular that corresponds with first seal rubber ring that is equipped with of seal ring fixed orifices, the concave second annular that corresponds with second seal rubber ring that is equipped with of seal ring inner wall, the concave third annular that corresponds with third seal rubber ring that is equipped with of handle of a knife main part surface, lock nut rear end axial extension makes the handle of a knife main part and lock nut screw in, the third annular gets into lock nut, first seal rubber ring, second seal rubber ring, third seal rubber ring are fixed respectively in first annular, second annular, third annular.

2. The collet chuck type dust-proof tool handle according to claim 1, characterized in that: the outer surface of the other end of the spring chuck is provided with a second conical surface, a second conical hole corresponding to the second conical surface is formed in the locking nut, and the locking nut fixes the other end of the spring chuck through the second conical hole.