CN210789415U

CN210789415U - Disposable diamond pre-milling cutter

Info

Publication number: CN210789415U
Application number: CN201921789116.2U
Authority: CN
Inventors: 张立民
Original assignee: Qingdao Jiandeli Tool Co ltd
Current assignee: Qingdao Jiandeli Tool Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-06-19
Anticipated expiration: 2029-10-23

Abstract

The utility model relates to a cutter field for furniture processing, concretely relates to give up formula diamond cutter in advance. The pre-milling cutter comprises a pre-milling cutter body, a first cutter holder, a second cutter holder, a first diamond cutter, a second diamond cutter and a cutter holder fixing screw. First blade holder and second blade holder all can be dismantled, can directly lift corresponding blade holder postback tool factory after certain diamond cutter wearing and tearing and change, need not to mail whole milling cutter in advance together, the cost of transportation is low, the blade holder that the corresponding diamond cutter of taking of cutter factory only needs to be changed in the cutter factory can, the blade holder that the diamond cutter was taken in only processing of cutter factory can, the precision is guaranteed easily, can provide two opposite direction's thrust for milling when milling, two thrusts offset each other, thereby avoided milling a drunkenness or flexible, the face of having guaranteed to mill is level and smooth.

Description

Disposable diamond pre-milling cutter

Technical Field

The utility model relates to a cutter field for furniture processing, concretely relates to give up formula diamond cutter in advance.

Background

The milling cutters of the existing pre-milling cutter are fixedly welded on a pre-milling cutter body, any milling cutter needs to be integrally replaced after being damaged, otherwise, the milled surface is uneven, waste is caused, and the existing pre-milling cutter can provide thrust in one direction for a milled part during milling, so that the milled part can move or be scratched due to the thrust, and finally the quality of the milled surface is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above problem, a give up formula diamond milling cutter in advance is provided, it has solved the current technical problem of milling cutter replacement cost height in advance, the face of milling out is easy uneven, the technical scheme of its adoption as follows:

a throwaway diamond pre-mill, comprising: the pre-milling cutter comprises a pre-milling cutter body, a first cutter holder, a second cutter holder, a first diamond cutter, a second diamond cutter and cutter holder fixing screws, wherein a plurality of first stopping bulges used for stopping the first cutter holder and second stopping bulges used for stopping the second cutter holder are convexly formed on the circumferential surface of the pre-milling cutter body, the first stopping bulges are uniformly distributed at intervals along the direction of a first spiral line of the pre-milling cutter body, the second stopping bulges are uniformly distributed at intervals along the direction of a second spiral line of the pre-milling cutter body, so that all the first diamond cutters are uniformly distributed at intervals along the direction of the first spiral line of the pre-milling cutter body, all the second diamond cutters are uniformly distributed at intervals along the direction of the second spiral line of the pre-milling cutter body, the first stopping bulges and the second stopping bulges are the same in number, and through holes for the cutter holder fixing screws to pass through are formed in the first cutter holder and the, the first cutter holder and the second cutter holder are detachably connected with the pre-milling cutter body through cutter holder fixing screws and radial threaded holes formed in the pre-milling cutter body, the back surface of the first cutter holder is attached to a first stop surface of a first stop protrusion, the first diamond cutter is welded on the first cutter holder, an included angle is formed between the extension direction of the cutting edge of the first diamond cutter and the axis of the pre-milling cutter body, the angle is A, the back surface of the second cutter holder is attached to a second stop surface of a second stop protrusion, the second diamond cutter is welded on the second cutter holder, an included angle is formed between the extension direction of the cutting edge of the second diamond cutter and the axis of the pre-milling cutter body, and the angle is B; b is equal to negative A.

On the basis of the technical scheme, a groove for arranging the first cutter holder or the second cutter holder is formed in the circumferential surface of the pre-milling cutter body close to each of the first stopping protrusions and the second stopping protrusions.

On the basis of the technical scheme, the through hole is a conical hole, and the bottom surface of the screw head of the tool apron fixing screw is a conical surface and matched with the conical hole.

On the basis of the technical scheme, the inclination direction of the first stop surface is consistent with the inclination direction of the first diamond cutter blade, and the inclination direction of the second stop surface is consistent with the inclination direction of the second diamond cutter blade.

The utility model has the advantages that: first blade holder and second blade holder all can be dismantled, can directly lift corresponding blade holder postback tool factory after certain diamond cutter wearing and tearing and change, need not to mail whole milling cutter in advance together, the cost of transportation is low, the blade holder that the corresponding diamond cutter of taking of cutter factory only needs to be changed in the cutter factory can, the blade holder that the diamond cutter was taken in only processing of cutter factory can, the precision is guaranteed easily, can provide two opposite direction's thrust for milling when milling, two thrusts offset each other, thereby avoided milling a drunkenness or flexible, the face of having guaranteed to mill is level and smooth.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention;

FIG. 2 is a schematic view of the assembled structure of the present invention;

Detailed Description

The invention will be further explained with reference to the following figures and examples:

in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 and 2, a throwaway diamond pre-mill, comprising: the pre-milling cutter comprises a pre-milling cutter body 4, a first cutter seat 30, a second cutter seat 31, a first diamond cutter 20, a second diamond cutter 21 and cutter seat fixing screws 1, wherein a plurality of first stopping bulges 40 for stopping the first cutter seat 30 and second stopping bulges 41 for stopping the second cutter seat 31 are convexly formed on the circumferential surface of the pre-milling cutter body 4, the first stopping bulges 40 are uniformly distributed at intervals along the direction of a first spiral line of the pre-milling cutter body 4, the second stopping bulges 41 are uniformly distributed at intervals along the direction of a second spiral line of the pre-milling cutter body 4, so that all the first diamond cutters 20 are uniformly distributed at intervals along the direction of the first spiral line of the pre-milling cutter body 4, all the second diamond cutters 21 are uniformly distributed at intervals along the direction of the second spiral line of the pre-milling cutter body 4, the first stopping bulges 40 and the second stopping bulges 41 are the same in number, through holes 35 for the fixing screws 1 to pass through are formed in the first cutter seat 30 and the second cutter seat 31, the first tool apron 30 and the second tool apron 31 are detachably connected with the pre-milling tool body 4 through the tool apron fixing screws 1 and the radial threaded holes 42 formed in the pre-milling tool body 4, the back surface of the first tool apron 30 is attached to the first stopping surface 40a of the first stopping protrusion 40, the first diamond tool 20 is welded on the first tool apron 30, an included angle is formed between the extension direction of the cutting edge of the first diamond tool 20 and the axis of the pre-milling tool body 4, the included angle is A, the back surface of the second tool apron 31 is attached to the second stopping surface 41a of the second stopping protrusion 41, the second diamond tool 21 is welded on the second tool apron 31, and an included angle is formed between the extension direction of the cutting edge of the second diamond tool 21 and the axis of the pre-milling tool body 4, and the included angle is B; b is equal to negative A, so that double helix milling can be performed during milling, which is equivalent to secondary milling, the material removal is more thorough, moreover, because B is equal to negative A, two thrusts with opposite directions can be provided for a milling part during milling, and the two thrusts are mutually offset, thereby avoiding the play or the deflection of the milling part, and ensuring the smoothness of the milled surface. The tool apron is detachably connected with the pre-milling cutter body 4, so that the tool apron is convenient to disassemble and replace, can be independently replaced when damaged, and saves the replacement cost.

It should be noted that the first spiral line of the pre-milling cutter main body 4 intersects with the second spiral line of the pre-milling cutter main body 4, the first spiral line and the second spiral line are both in the shape of a spring without changing diameter, and the first spiral line and the second spiral line are both two virtual lines, so as to facilitate description of the position distribution of each of the first diamond tool 20 and the second diamond tool 21.

In order to better position the insert seat, it is preferable that a groove 43 for accommodating the first insert seat 30 or the second insert seat 31 is formed on the circumferential surface of the pre-milling cutter body 4 adjacent to each of the first stopping protrusion 40 and the second stopping protrusion 41.

Preferably, the through hole 35 is a tapered hole, and the bottom surface of the screw head of the tool apron fixing screw 1 is a tapered surface and is matched with the tapered hole. Therefore, on one hand, the requirements on the specification and the processing precision of the through hole 35 and the tool apron fixing screw 1 are reduced, on the other hand, the tool apron fixing screw 1 can provide a radial force for the tool apron, so that the tool apron is prevented from moving along the radial direction of the tool apron fixing screw 1, and the stopping protrusion provides an anti-rotation torque force for the tool apron, so that the stopping protrusion and the conical through hole 35 jointly act to facilitate the positioning of the tool apron without shaking and rotating; the tool seat is referred to as a first tool seat or a second tool seat.

Further, the first stop surface 40a is inclined in the same direction as the edge of the first diamond tool 20, and the second stop surface 41a is inclined in the same direction as the edge of the second diamond tool 21.

Still further, every first backstop arch and second backstop protruding department all have the reference numeral, are convenient for the corresponding change of blade holder.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A throwaway diamond pre-mill, comprising: the pre-milling cutter comprises a pre-milling cutter body (4), a first cutter holder (30), a second cutter holder (31), a first diamond cutter (20), a second diamond cutter (21) and cutter holder fixing screws (1), wherein a plurality of first stopping bulges (40) used for stopping the first cutter holder (30) and second stopping bulges (41) used for stopping the second cutter holder (31) are convexly formed on the circumferential surface of the pre-milling cutter body (4), the first stopping bulges (40) are uniformly distributed at intervals along the direction of a first spiral line of the pre-milling cutter body (4), the second stopping bulges (41) are uniformly distributed at intervals along the direction of a second spiral line of the pre-milling cutter body (4), the first stopping bulges (40) and the second stopping bulges (41) are same in quantity, and through holes (35) for the cutter holder fixing screws (1) to pass through are formed in the first cutter holder (30) and the second cutter holder (31), the first cutter holder (30) and the second cutter holder (31) are detachably connected with the pre-milling cutter body (4) through cutter holder fixing screws (1) and radial threaded holes (42) formed in the pre-milling cutter body (4), the back surface of the first cutter holder (30) is attached to a first stop surface (40a) of a first stop protrusion (40), the first diamond cutter (20) is welded to the first cutter holder (30), an included angle is formed between the extension direction of the cutting edge of the first diamond cutter (20) and the axis of the pre-milling cutter body (4), the angle is A, the back surface of the second cutter holder (31) is attached to a second stop surface (41a) of a second stop protrusion (41), the second diamond cutter (21) is welded to the second cutter holder (31), and the extension direction of the cutting edge of the second diamond cutter (21) and the axis of the pre-milling cutter body (4) form an included angle, the angle is B; b is equal to negative A.

2. A throwaway diamond pre-mill according to claim 1, characterized in that: a groove (43) used for accommodating the first tool apron (30) or the second tool apron (31) is formed in the circumferential surface of the pre-milling tool body (4) close to each of the first stopping protrusion (40) and the second stopping protrusion (41).

3. A throwaway diamond pre-mill according to claim 1, characterized in that: the through hole (35) is a conical hole, and the bottom surface of the screw head of the tool apron fixing screw (1) is a conical surface and matched with the conical hole.

4. A throwaway diamond pre-mill according to claim 1, characterized in that: the first stop surface (40a) is inclined in the same direction as the edge of the first diamond tool (20), and the second stop surface (41a) is inclined in the same direction as the edge of the second diamond tool (21).