CN219074911U

CN219074911U - Elastic sleeve of hydraulic knife handle

Info

Publication number: CN219074911U
Application number: CN202320087758.8U
Authority: CN
Inventors: 许嗣飞; 李职锋
Original assignee: Guangxi Xinboxuan Machinery Technology Co ltd
Current assignee: Guangxi Xinboxuan Machinery Technology Co ltd
Priority date: 2023-01-30
Filing date: 2023-01-30
Publication date: 2023-05-26
Anticipated expiration: 2033-01-30

Abstract

The utility model discloses an elastic sleeve of a hydraulic knife handle, belongs to the field of hydraulic knife handles, and solves the problems of high processing difficulty, low efficiency and low precision caused by a suspended long strip structure of a sealing oil groove between the elastic sleeve of the existing hydraulic knife handle and a knife handle body. The elastic sleeve comprises an elastic sleeve body, two sealing oil grooves are formed in the middle of the elastic sleeve body, an outer diameter wall surface which can be attached to the middle of the inner wall of the cutter handle body is arranged between the two sealing oil grooves, the outer diameter wall surface is a spiral surface which extends along the axial direction of the elastic sleeve body in a spiral mode, and an outer diameter oil groove which communicates the two sealing oil grooves is formed in one side of the outer diameter wall surface. The elastic sleeve of the hydraulic knife handle can meet the requirement that hydraulic oil enters the sealed oil groove, is more convenient to process, and effectively ensures the processing precision.

Description

Elastic sleeve of hydraulic knife handle

Technical Field

The utility model relates to the field of hydraulic knife handles, in particular to an elastic sleeve of a hydraulic knife handle.

Background

The hydraulic knife handle is a knife handle used by a machining center in machining as a machining process of drilling, tapping, milling, reaming, boring and the like, and plays an indispensable role in machining efficiency and precision.

The hydraulic knife handle is different from the structure of the conventional mechanical clamping, and an oil inlet and an oil outlet are simultaneously designed after an oil cavity is formed by welding an elastic sleeve in the knife handle body. When the tool is used, the oil outlet is plugged after hydraulic oil is injected, a sealing oil groove is formed between the tool handle body and the elastic sleeve after the sealing piston is arranged at the oil inlet end, the hydraulic oil in the sealing oil groove is compressed by adjusting the pressure regulating screw at the rear end of the sealing piston of the oil inlet, so that the elastic sleeve is deformed, and a tool which is installed into an inner hole of the elastic sleeve through clearance fit is clamped.

The effect of sealed oil groove in the hydraulic pressure handle of a knife is very critical, once leak oil can lead to taking place the result of damaging equipment or processing object after the handle of a knife function failure. At present, the elastic sleeve is welded on the cutter handle body by adopting a vacuum brazing process in the industry, for example, the patent number is as follows: CN108907776 a-a composite connection type hydraulic knife handle. However, in the existing hydraulic knife handle, a sealing oil groove between an elastic sleeve and a knife handle body is of a suspended strip-shaped structure, the outer wall of the elastic sleeve corresponding to the structure is very thin, elastic deformation can occur during processing, and the problems of high processing difficulty, low efficiency and low precision are caused. Therefore, a new hydraulic knife handle elastic sleeve is needed to be designed.

Disclosure of Invention

The utility model aims to solve the technical problems in the prior art, and aims to provide the elastic sleeve of the hydraulic knife handle, so that hydraulic oil enters a sealed oil groove and is more convenient to process, and the processing precision is effectively ensured.

The technical scheme of the utility model is as follows: the elastic sleeve of the hydraulic knife handle comprises an elastic sleeve body, wherein two sealing oil grooves are formed in the middle of the elastic sleeve body, an outer diameter wall surface which can be attached to the middle of the inner wall of the knife handle body is arranged between the two sealing oil grooves, the outer diameter wall surface is a spiral surface which extends along the axial direction of the elastic sleeve body in a spiral mode, and an outer diameter oil groove which communicates the two sealing oil grooves is formed in one side of the outer diameter wall surface.

As a further improvement, one end of the outer wall of the elastic sleeve body is provided with a first outer diameter surface which can be matched with the inner wall of the cutter handle body.

Further, one end of the inner wall of the elastic sleeve body is provided with a fourth inner diameter surface for installing the buckling gasket.

Further, the outer wall of the elastic sleeve body at one side of the first outer diameter surface is provided with a second outer diameter surface, and the second outer diameter surface is provided with a sealing groove for installing a sealing ring.

Further, the other end of the elastic sleeve body is provided with an inner end face.

Further, the other end part of the elastic sleeve body is provided with an outer diameter inclined plane.

Further, the depth of the seal oil groove is greater than the depth of the outer diameter oil groove.

Further, a fifth inner diameter surface for installing a cutter is arranged at the other end of the inner wall of the elastic sleeve body, and grooves which are arranged in a spiral mode are formed in the fifth inner diameter surface.

Further, a tool withdrawal groove is formed in the inner wall of the elastic sleeve body between the fourth inner diameter surface and the fifth inner diameter surface, and the tool withdrawal groove and the fourth inner diameter surface are in chamfer transition.

Further, the elastic sleeve body is made of H13 material and is manufactured through vacuum quenching.

Advantageous effects

Compared with the prior art, the utility model has the following advantages:

1. according to the elastic sleeve, the outer diameter oil groove is formed in the outer wall of the elastic sleeve body to form the outer diameter wall surface so as to support the inner wall of the cutter handle body, so that the problem that the machining precision is affected due to the fact that the elastic sleeve is thinned while hydraulic oil enters the sealing oil groove is solved, meanwhile, the problem that the finish machining is affected due to the fact that the sealing oil groove is suspended and is of a strip-shaped structure is solved, machining is facilitated, and machining precision is effectively guaranteed.

2. According to the elastic sleeve, the outer diameter inclined plane is arranged at the end part of the other end of the elastic sleeve body and matched with the end part of the cutter handle body to form the welding area, so that the welding position is exposed outside, the welding is convenient, the processing is more convenient and quick, and meanwhile, the stability and the firmness of the welding can be improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic diagram of the structure of the present utility model in application.

Wherein: the tool comprises a 2-tool handle body, a 3-elastic sleeve body, a 5-sealing ring, a 6-buckling gasket, a 12-welding area, a 15-sealing oil groove, a 31-fourth inner diameter surface, a 32-second outer diameter surface, a 33-outer diameter wall surface, a 34-inner end surface, a 35-outer diameter inclined surface, a 36-first outer diameter surface, a 41-sealing groove, a 45-outer diameter oil groove, a 46-fifth inner diameter surface, a 47-groove and a 48-tool retracting groove.

Detailed Description

The utility model will be further described with reference to specific embodiments in the drawings.

Referring to fig. 1-3, the elastic sleeve of the hydraulic knife handle of the utility model comprises an elastic sleeve body 3, wherein two sealing oil grooves 15 are arranged in the middle of the elastic sleeve body 3, an outer diameter wall surface 33 which can be attached to the middle of the inner wall of the knife handle body 2 is arranged between the two sealing oil grooves 15, the outer diameter wall surface 33 is a spiral surface which extends spirally along the axial direction of the elastic sleeve body 3, and an outer diameter oil groove 45 which communicates the two sealing oil grooves 15 is arranged on one side of the outer diameter wall surface 33, so that high-pressure oil can circulate between the two sealing oil grooves 15.

According to the elastic sleeve, the outer diameter oil groove 45 is formed in the outer wall of the elastic sleeve body 3 to form the outer diameter wall surface 33 so as to support the inner wall of the cutter handle body 2, so that the problem that the machining precision is affected due to thinning of the elastic sleeve body while hydraulic oil enters the two sealing oil grooves 15 is solved, meanwhile, the problem that the finish machining is affected due to the fact that the sealing oil grooves 15 are suspended and are in a strip-shaped structure is solved, machining precision is more convenient to process, machining precision is effectively guaranteed, and compared with the existing clamping mode of the strip-shaped oil grooves, the contact area of the elastic sleeve body and a cutter is reduced while the clamping of the cutter is satisfied, and the problem that clamping or coaxiality is affected by residual substances on the outer wall of the cutter or the elastic sleeve body 3 is solved.

Preferably, a first outer diameter surface 36 which can be matched with the inner wall of the cutter handle body 2 is arranged at one end of the outer wall of the elastic sleeve body 3, so that the elastic sleeve body 3 can be conveniently pressed into the cutter handle body 2. The fourth inner diameter surface 31 for installing the buckling washer 6 is arranged at one end of the inner wall of the elastic sleeve body 3, the first outer diameter surface 36 is conveniently extruded through the buckling washer 6, the first outer diameter surface 36 is tightly pressed in the cutter handle body 2 in an interference mode, and one end of the elastic sleeve is fixed.

Preferably, the outer wall of the elastic sleeve body 3 at one side of the first outer diameter surface 36 is provided with a second outer diameter surface 32, and the second outer diameter surface 32 is provided with a sealing groove 41 for installing the sealing ring 5, so that the sealing ring 5 is conveniently installed, and the sealing ring 5 is prevented from being displaced.

Preferably, the other end of the elastic sleeve body 3 is provided with an inner end face 34, when the elastic sleeve is pressed, the inner end face 34 can be attached to the step face corresponding to the cutter handle body 2, the pressing depth of the elastic sleeve is limited, and the elastic sleeve 3 is pressed in place rapidly.

Preferably, an outer diameter inclined plane 35 is arranged at the end part of the other end of the elastic sleeve body 3, and after the elastic sleeve is pressed, a welding area 12 can be formed between the outer diameter inclined plane 35 and the inner diameter inclined plane of the cutter handle body 2, so that laser filling welding is facilitated.

Preferably, the depth of the sealing oil groove 15 is greater than the depth of the outer diameter oil groove 45, so that the thicknesses of the positions corresponding to the two sealing oil grooves 15 are relatively thinner, the thicknesses of the positions corresponding to the outer diameter oil groove 45 are relatively thicker, the positions corresponding to the sealing oil groove 15 can be deformed more easily, a cutter is clamped, the positions corresponding to the outer diameter oil groove 45 are relatively not deformed, and the outer diameter wall surface 33 can be well supported on the inner wall of the cutter handle body 2, so that the stability of clamping of the cutter is effectively ensured.

Preferably, a fifth inner diameter surface 46 for installing a cutter is arranged at the other end of the inner wall of the elastic sleeve body 3, a groove 47 which is spirally arranged is arranged on the fifth inner diameter surface 46 to play a role of accommodating impurities, and when the cutter is installed, the outer wall of the cutter is contacted with the fifth inner diameter surface 46 of the elastic sleeve 3, so that impurities remained on the outer wall or the fifth inner diameter surface 46 of the cutter can be pushed into the groove 47, and the stability and the firmness of clamping the cutter are effectively improved.

Preferably, a tool retracting groove 48 is formed in the inner wall of the elastic sleeve body 3 between the fourth inner diameter surface 31 and the fifth inner diameter surface 46, so that tool retracting during processing is facilitated, and the tool retracting groove 48 and the fourth inner diameter surface 31 are in chamfer transition, so that pressing in of the buckling gasket 6 is facilitated.

Preferably, the elastic sleeve body 3 is made of H13 material and is manufactured through vacuum quenching, so that the structural strength of the elastic sleeve is effectively improved.

While only the preferred embodiments of the present utility model have been described above, it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these do not affect the effect of the implementation of the present utility model and the utility of the patent.

Claims

1. The utility model provides an elastic sleeve of hydraulic pressure handle of a knife, includes elastic sleeve body (3), its characterized in that, the middle part of elastic sleeve body (3) is equipped with two sealed oil grooves (15), two sealed oil groove (15) between be equipped with can with handle of a knife body (2) inner wall middle part outside diameter wall (33) of laminating mutually, outside diameter wall (33) be along the helicoid of elastic sleeve body (3) axial spiral extension, outside diameter wall (33) one side be equipped with outside diameter oil groove (45) with two sealed oil grooves (15) intercommunication.

2. An elastic sleeve of a hydraulic knife handle according to claim 1, characterized in that one end of the outer wall of the elastic sleeve body (3) is provided with a first outer diameter surface (36) which can be matched with the inner wall of the knife handle body (2).

3. An elastic sleeve of a hydraulic knife handle according to claim 1, characterized in that one end of the inner wall of the elastic sleeve body (3) is provided with a fourth inner diameter surface (31) for mounting a buckling washer (6).

4. The elastic sleeve of the hydraulic knife handle according to claim 2, wherein the outer wall of the elastic sleeve body (3) at one side of the first outer diameter surface (36) is provided with a second outer diameter surface (32), and the second outer diameter surface (32) is provided with a sealing groove (41) for installing a sealing ring (5).

5. An elastic sleeve of a hydraulic knife handle according to claim 1, characterized in that the other end of the elastic sleeve body (3) is provided with an inner end surface (34).

6. An elastic sleeve of a hydraulic knife handle according to claim 1, characterized in that the other end of the elastic sleeve body (3) is provided with an outer diameter inclined plane (35).

7. An elastic sleeve of a hydraulic knife handle according to claim 1, characterized in that the depth of the sealing oil groove (15) is greater than the depth of the outer diameter oil groove (45).

8. A hydraulic tool holder elastic sleeve according to claim 3, characterized in that a fifth inner diameter surface (46) for mounting a tool is arranged at the other end of the inner wall of the elastic sleeve body (3), and a groove (47) which is arranged in a spiral manner is arranged on the fifth inner diameter surface (46).

9. The elastic sleeve of a hydraulic knife handle according to claim 8, wherein a knife retracting groove (48) is formed in the inner wall of the elastic sleeve body (3) between the fourth inner diameter surface (31) and the fifth inner diameter surface (46), and the knife retracting groove (48) and the fourth inner diameter surface (31) are in chamfer transition.

10. The elastic sleeve of the hydraulic knife handle according to any one of claims 1 to 9, wherein the elastic sleeve body (3) is made of an H13 material and is manufactured through vacuum quenching.