CN201006555Y

CN201006555Y - Improved structure wolframi steel cutting tools

Info

Publication number: CN201006555Y
Application number: CNU2007200030939U
Authority: CN
Inventors: 杨儹助
Original assignee: XINDEFA ENTERPRISE CO Ltd
Current assignee: XINDEFA ENTERPRISE CO Ltd
Priority date: 2007-03-07
Filing date: 2007-03-07
Publication date: 2008-01-16
Anticipated expiration: 2017-03-07

Abstract

The utility model relates to an improved structure of tungsten steel cutting tool, wherein the front end of a rod is screwed with a blade head, the rod and the blade head are made from tungsten steel and integrally shaped, the front end of the rod is provided with a screw hole which front end has a joint groove, the bottom end of the blade head has a protruded screw rod, the front section of the screw rod has a joint flange which height is same as the depth of the joint groove, the width of the joint groove is same as the thickness of the joint flange. Therefore, when the blade head is screwed with the rod, the utility model can obtain tight joint via the screw connection between the screw hole and the screw rod, the joint groove and the joint flange, to avoid joint space. The utility model combines two sections, to save cost and improve the stability and processing efficiency of precision tool.

Description

The improvement structure of wolfram steel cutting tool

Technical field

The utility model relates to a kind of improvement structure of wolfram steel cutting tool, is meant a kind of improvement structure that reduces the cost expenditure and promote the wolfram steel cutting tool of working (machining) efficiency especially.

Background technology

The cutting tool of precision instrument mainly all pursue " accuracy ", " stability ", and its material mostly is wolfram steel or general steel, and, mostly be one-body molded with now cutting tool, if discuss with the wolfram steel material, one-body molded its cutter is comparatively stable, the better quality of its cutting, right tool wear the most serious at cutter head, therefore when cutter head is damaged, whole cutter just will be changed, so the cost height; Therefore industry is then developed a kind of combination of segmentation, promptly a body of rod welds a cutter head, for when the tool bit abrasion, as long as change cutter head, to save cost, the described again body of rod is based on general steel matter, so that cutter head is different with the hardness of the body of rod, though it can solve the high disappearance of traditional its cost of integrated cutter, but differently with hardness do not make it not good in stability that adds man-hour and accuracy in conjunction with density is good.

Because above-mentioned factor, the artificial disappearance of improving above-mentioned cutting tool place of disclosing of this case utility model design, utility model designer adheres to the experience of relevant industries actual design and research for many years, go out this case via utility model after the research and development improvement repeatedly, relying on a body of rod all is the wolfram steel that one becomes with cutter head, and be the driving fit mode that is spirally connected between the two, practise the shortcoming of formula with effective solution.

Summary of the invention

Main purpose of the present utility model is, the improvement structure that a kind of cost is low, promote the wolfram steel cutting tool of working (machining) efficiency is provided.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of improvement structure of wolfram steel cutting tool, it is characterized in that: by the lever front end cutter head that is spirally connected, the wherein said body of rod and cutter head all are that the wolfram steel material is one-body molded, the front end of the described body of rod is provided with a screw, and form an engagement grooves at the front end of screw, and the bottom of cutter head then protrudes out a screw rod, and the leading portion of described screw rod then is a joint flange, the degree of depth of described engagement grooves is identical with the height of joint flange, and the width of described engagement grooves also equals the thickness of joint flange again.

Compared with prior art, adopt the advantage that the utlity model has of technique scheme to be: to rely on outside being spirally connected of screw and screw rod, can rely on engagement grooves to form engaging of driving fit again with joint flange, so just can improve situation, and can promote the stability and the working (machining) efficiency of precision instrument in conjunction with the space.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the present utility model;

Fig. 2 is that solid of the present utility model is to closing figure;

Fig. 3 is a combination section of the present utility model.

Description of reference numerals: the 10-body of rod; The 11-screw; The 12-engagement grooves; The 20-cutter head; The 21-screw rod; The 22-joint flange.

The specific embodiment

Below, now with regard to structure content of the present utility model, and cooperate graphic detailed description as after, for examination:

See also Fig. 1 to shown in Figure 3, the utility model mainly is by a body of rod 10 front ends cutter head 20 that is spirally connected, wherein:

The described body of rod 10 is one-body molded by the wolfram steel material, and the front end of the described body of rod is concaved with a screw 11, and forms an engagement grooves 12 at the front end of screw 11;

Described cutter head 20, be one-body molded by the wolfram steel material, the bottom of cutter head 20 then protrudes out a screw rod 21, and the leading portion of described screw rod 21 then is a joint flange 22, the height of described joint flange 22 is identical with the degree of depth of engagement grooves 12, and its thickness equals the width of engagement grooves 12;

So, when cutter head 20 is spirally connected with the body of rod 10, rely on outside being spirally connected of screw 11 and screw rod 21, can rely on engaging of engagement grooves 12 and joint flange 22 formation driving fits again, so just can improve situation, and can promote the stability and the working (machining) efficiency of precision instrument in conjunction with the space.

More than explanation is just illustrative for the utility model, and it is nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited, can make many modifications, variation or equivalence, but but all will fall within the claim restricted portion of the present utility model.

Claims

1. the improvement structure of a wolfram steel cutting tool, it is characterized in that: by the lever front end cutter head that is spirally connected, the wherein said body of rod and cutter head all are that the wolfram steel material is one-body molded, the front end of the described body of rod is provided with a screw, and form an engagement grooves at the front end of screw, the bottom of cutter head then protrudes out a screw rod, the leading portion of described screw rod then is a joint flange, the degree of depth of described engagement grooves is identical with the height of joint flange, and the width of described engagement grooves also equals the thickness of joint flange again.