CN218904351U

CN218904351U - Damping anti-vibration knife handle

Info

Publication number: CN218904351U
Application number: CN202222983308.5U
Authority: CN
Inventors: 王传军
Original assignee: Guangdong Suken Technology Co ltd
Current assignee: Guangdong Suken Technology Co ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-04-25
Anticipated expiration: 2032-11-09

Abstract

The utility model discloses a damping vibration-resistant knife handle, which comprises a knife handle main body and a knife clamping positioning head, wherein the knife clamping positioning head is arranged at one end of the knife handle main body; still include damping subassembly, the one end that the handle of a knife main part is close to cutter centre gripping location head is provided with holds the chamber, damping subassembly installs in holding the intracavity, damping subassembly includes locking screw, damping body, antidetonation rubber ring, damping body cover is established on locking screw, antidetonation rubber ring cover is established on the damping and outer circle face and is held the chamber wall butt in chamber, be provided with the blotter subassembly that is used for realizing axial buffering to cutter centre gripping location head in the damping body, locking screw's one end and cutter centre gripping location head threaded connection. The shock-resistant rubber ring can largely counteract component force vibration generated in the radial direction, and the cushion pad assembly can largely counteract component force vibration generated in the axial direction, so that the service lives of a processing machine tool and a cutter are prolonged.

Description

Damping anti-vibration knife handle

Technical Field

The utility model relates to the technical field of tool shanks, in particular to a damping and shock-resistant tool shank.

Background

Deep holes are often encountered in the NC machining process, and the following problems often occur in deep cavity machining:

1. the common cutter handle exceeds a certain depth, and the phenomena of cutter breakage, tipping and the like can occur due to bending and vibration, so that the precision damage to the spindle of the NC machine tool is large, and the service lives of the NC machine tool and the cutter are shortened.

2. The cutter is easy to shake, and has poor surface roughness and finish on a machined workpiece, and has poor precision on the workpiece.

3. The length-diameter ratio is smaller, and the processing requirement can not be met for processing the shape cavity with too deep.

The above situation severely restricts the development of cutting processing.

Disclosure of Invention

The utility model aims to solve the problems that: the damping anti-vibration knife handle is provided, the anti-vibration rubber ring can largely counteract component vibration generated in the radial direction, and the cushion pad assembly can largely counteract component vibration generated in the axial direction, so that the service lives of a processing machine tool and a cutter are prolonged.

The technical scheme provided by the utility model for solving the problems is as follows: the damping vibration-resistant knife handle comprises a knife handle main body and a knife clamping positioning head, wherein the knife clamping positioning head is arranged at one end of the knife handle main body; still include damping subassembly, the one end that the handle of a knife main part is close to cutter centre gripping location head is provided with holds the chamber, damping subassembly installs in holding the intracavity, damping subassembly includes locking screw, damping body, antidetonation rubber ring, damping body cover is established on locking screw, antidetonation rubber ring cover is established on the damping and outer circle face and is held the chamber wall butt in chamber, be provided with the blotter subassembly that is used for realizing axial buffering to cutter centre gripping location head in the damping body, locking screw's one end and cutter centre gripping location head threaded connection.

Preferably, the damping body comprises a damping unit and a locking block, the locking block and the damping body are sequentially sleeved on the locking screw rod, and the locking block is in threaded connection with the locking screw rod.

Preferably, an annular mounting groove is formed in the outer circumferential surface of the locking block, and the anti-seismic rubber ring is mounted in the annular mounting groove.

Preferably, the cushion pad assembly is disposed at both sides of the damping unit, and the cushion pad assembly includes a cushion pad and washers disposed at both sides of the cushion pad.

Preferably, a gap is formed between the inner ring of the damping unit and the locking screw, fixing grooves are formed in two ends of the inner ring of the damping unit, sealing rubber rings are installed in the fixing grooves, the inner ring surfaces of the sealing rubber rings are abutted to the outer circumferential surface of the locking screw, radial oil filling holes are formed in the damping unit, hole plugs are plugged in the oil filling holes, and resistance oil is filled in the gap between the damping unit and the locking screw.

Preferably, the damping unit is made of heavy metal with high density.

Preferably, the locking screw is a hollow screw.

Preferably, a first positioning hole is formed in the connecting part of the cutter clamping positioning head of the cutter handle main body, a second positioning hole is formed in the position, corresponding to the first positioning hole, of the cutter clamping positioning head, and the first positioning hole is connected with the second positioning hole through an anti-rotation positioning pin.

Compared with the prior art, the utility model has the advantages that: the shock-resistant rubber ring can largely counteract component force vibration generated in the radial direction, and the cushion pad assembly can largely counteract component force vibration generated in the axial direction, so that the service lives of a processing machine tool and a cutter are prolonged.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model.

Fig. 1 is a schematic view of the overall structure of the present utility model.

The drawings are marked: 1. the tool handle comprises a tool handle main body, 2, locking blocks, 3, a buffer pad, 4, a gasket, 5, a damping unit, 6, a hole plug, 7, a tool clamping positioning head, 8, an anti-rotation positioning pin, 9, a sealing rubber ring, 10, a locking screw, 11 and an anti-vibration rubber ring.

Detailed Description

The following detailed description of embodiments of the present utility model will be given with reference to the accompanying drawings and examples, by which the implementation process of how the present utility model can be applied to solve the technical problems and achieve the technical effects can be fully understood and implemented.

In the description of the present utility model, it should be noted that, for the azimuth words such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present utility model and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present utility model that the device or element referred to must have a specific azimuth configuration and operation.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first", "a second" or "a second" feature may explicitly or implicitly include one or more such feature, and in the description of the utility model, the meaning of "a number" is two or more, unless otherwise specifically defined.

In the present utility model, unless explicitly stated and limited otherwise, the terms "assembled," "connected," and "connected" are to be construed broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; can be directly connected or connected through an intermediate medium, and can be communicated with the inside of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the embodiments of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of embodiments of the utility model. As used in the specification of the embodiments of the utility model and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

The damping and shock-resistant knife handle comprises a knife handle main body 1 and a knife clamping positioning head 7, wherein the knife clamping positioning head 7 is arranged at one end of the knife handle main body 1; still include damping subassembly, the one end that handle of a knife main part 1 is close to cutter centre gripping positioning head 7 is provided with and holds the chamber, damping subassembly installs in holding the intracavity, damping subassembly includes locking screw 10, damping body, antidetonation rubber ring 11, damping body cover is established on locking screw 10, antidetonation rubber ring 11 cover is established on the damping and outer circle face and is held the chamber wall butt in chamber, be provided with the blotter subassembly that is used for realizing axial buffering to cutter centre gripping positioning head 7 in the damping body, locking screw 10's one end and cutter centre gripping positioning head 7 threaded connection.

In this embodiment, the damping body includes damping unit 5 and latch segment 2, latch segment 2 and damping unit 5 cover are established on locking screw 10 in proper order, latch segment 2 and locking screw 10 threaded connection.

The outer circumferential surface of the locking block 2 is provided with an annular mounting groove, and the anti-seismic rubber ring 11 is mounted in the annular mounting groove.

Wherein, still further, the cushion pad assembly is disposed at both sides of the damping unit 5, and the cushion pad assembly includes a cushion pad 3 and washers 4 disposed at both sides of the cushion pad 3.

In this embodiment, a gap is formed between the inner ring of the damping unit 5 and the locking screw 10, fixing grooves are formed at two ends of the inner ring of the damping unit 5, a sealing rubber ring 9 is installed in the fixing grooves, an inner ring surface of the sealing rubber ring 9 is abutted to an outer circumferential surface of the locking screw 10, a radial oil filling hole is formed in the damping unit 5, a hole plug 6 is plugged in the oil filling hole, and resistance oil is filled in the gap between the damping unit 5 and the locking screw 10.

Wherein the damping unit is made of high-density heavy metal. Therefore, the maximum mass can be achieved in a limited space, then the tool is supported in the cavity of the tool holder by the elastic element (the anti-vibration rubber ring, the gasket and the buffer pad), so that the frequency of the damping body at the first time when the tool at the front end of the tool holder is subjected to vibration deformation is consistent with the frequency of the whole tool holder in the cutting process, and certain buffer is generated by the damping oil.

The damping body is close to the head of the cutter handle as much as possible, and is better close to the NC cutter, so that larger damping can be generated, vibration deformation of the cutter body is greatly reduced, and a damping effect is achieved.

In this embodiment, the locking screw is a hollow screw, water can be passed through, and the handle body is provided with a through hole communicated with the hollow screw.

The connecting part of the cutter clamping positioning head 7 of the cutter handle main body 1 is provided with a positioning hole I, the cutter clamping positioning head 7 is provided with a positioning hole II at a position corresponding to the positioning hole I, and the positioning hole I and the positioning hole II are connected through an anti-rotation positioning pin 8.

Specifically, during installation, the locking block is firstly installed together with the locking screw rod, the locking screw rod is made of spring steel with good elasticity, and the locking screw rod are connected together by screw teeth (for sealing glue); in the sequence shown in FIG. 1: the gasket, the cushion pad, the gasket, the sealing rubber ring, the damping unit, the sealing rubber ring, the gasket, the cushion pad and the gasket are arranged on a locking screw, the locking screw is locked by a screw tooth and a cutter clamping positioning head, two oil injection holes on the damping unit are specially used for dredging gas and better injecting damping oil, and the damping oil is tightly plugged by a copper plug after the oil injection is finished so as to prevent oil leakage; then, the anti-vibration rubber ring is sleeved into the annular mounting groove of the rubber cushion locking block, the whole body of the cutter handle is sleeved into a gap of 0.4-0.5 MM between the inner side wall of the cutter handle and the rubber cushion locking block and the damping unit, a certain elastic force is generated between the inner side wall of the cutter handle and the locking block by the anti-vibration rubber ring, a certain elastic force is generated by the anti-vibration rubber ring, the gasket and the cushion in the high-speed rotation process of the processing cutter, so that the damping anti-vibration effect is achieved.

The foregoing is illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the claims. The present utility model is not limited to the above embodiments, and the specific structure thereof is allowed to vary. All changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. The damping and shock-resistant knife handle comprises a knife handle main body (1) and a knife clamping positioning head (7), wherein the knife clamping positioning head (7) is arranged at one end of the knife handle main body (1); the method is characterized in that: still include damping subassembly, the one end that handle of a knife main part (1) is close to cutter centre gripping positioning head (7) is provided with holds the chamber, damping subassembly installs in holding the intracavity, damping subassembly includes locking screw (10), damping body, antidetonation rubber ring (11), damping body cover is established on locking screw (10), antidetonation rubber ring (11) cover is established on the damping and outer circle face and is held the chamber wall butt in chamber, be provided with the blotter subassembly that is used for realizing axial buffering to cutter centre gripping positioning head (7) in the damping body, the one end and the cutter centre gripping positioning head (7) threaded connection of locking screw (10).

2. A damped vibration-resistant tool shank according to claim 1, wherein: the damping body comprises a damping unit (5) and a locking block (2), wherein the locking block (2) and the damping unit (5) are sequentially sleeved on a locking screw (10), and the locking block (2) is in threaded connection with the locking screw (10).

3. A damped vibration-resistant tool shank according to claim 2, wherein: an annular mounting groove is formed in the outer circumferential surface of the locking block (2), and the anti-seismic rubber ring (11) is mounted in the annular mounting groove.

4. A damped vibration-resistant tool shank according to claim 2, wherein: the cushion pad assembly is arranged on two sides of the damping unit (5), and comprises a cushion pad (3) and gaskets (4) arranged on two sides of the cushion pad (3).

5. A damped vibration-resistant tool shank according to claim 2, wherein: the damping device is characterized in that a gap is formed between the inner ring of the damping unit (5) and the locking screw (10), fixing grooves are formed in the two ends of the inner ring of the damping unit (5), sealing rubber rings (9) are arranged in the fixing grooves, the inner ring surfaces of the sealing rubber rings (9) are abutted to the outer circumferential surface of the locking screw (10), radial oil filling holes are formed in the damping unit (5), hole plugs (6) are filled in the oil filling holes, and resistance oil is filled in the gap between the damping unit (5) and the locking screw (10).

6. A damped vibration-resistant tool shank according to claim 2, wherein: the damping unit (5) is made of high-density heavy metal.

7. A damped vibration-resistant tool shank according to claim 1, wherein: the locking screw (10) is a hollow screw.

8. A damped vibration-resistant tool shank according to claim 1, wherein: the novel tool holder is characterized in that a first positioning hole is formed in the connecting part of the tool clamping positioning head (7) of the tool holder main body (1), a second positioning hole is formed in the position, corresponding to the first positioning hole, of the tool clamping positioning head (7), and the first positioning hole is connected with the second positioning hole through an anti-rotation positioning pin (8).