CN201108987Y

CN201108987Y - Improved structure of wolfram-steel cutting tool

Info

Publication number: CN201108987Y
Application number: CNU200720181251XU
Authority: CN
Inventors: 杨儹助
Original assignee: XINDEFA ENTERPRISE CO Ltd
Current assignee: XINDEFA ENTERPRISE CO Ltd
Priority date: 2007-11-07
Filing date: 2007-11-07
Publication date: 2008-09-03
Anticipated expiration: 2017-11-07

Abstract

The utility model relates to an improved structure of a tungsten steel cutting tool. The front end of a rod body is connected with a tool bit in a screw thread way and provided with a screwed hole, the front end of the screwed hole forms a joint groove, while the bottom end of the tool bit is extended with a screwed rod in a protruding way, the front end of the screwed rod is provided with a joint flange, the depth of the joint groove is the same as the height of the joint flange, and the size of the thickness of the joint groove is equal to the size of the width of the joint flange, in addition, the tool bit and the rod body are provided with a drainage way and a water inlet channel which are communicated, the pipe diameter of the water inlet channel is larger than the pipe diameter of the drainage way. When the tool bit is connected with the rod body in a screw thread way, by dint of the sealing joint formed by the joint groove and the joint flange, the usual type combined clearance condition is improved, and by dint of the drainage way and the water inlet channel, cutting solution can play the cooling role, and avoid the tool bit from depositing bits, and influence the cutting quality, therefore, the improvement structure of the tungsten steel cutting tool not only has two section combined ways to save the cost, but also can improve the stability of a precise tool and the machining efficiency.

Description

The improvement structure of wolfram steel cutting tool

Technical field

The utility model relates to a kind of cutting tool structure, is meant the cutting tool structure of the negotiable cutting fluid in a kind of inside especially.

Background technology

The key technical indexes of the cutting tool of precision instrument is its accuracy and stability, and according to its material and by mostly being wolfram steel, high-speed 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 quality of its cutting is preferable, and right tool wear is the most serious is 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 is not it can solve the high disappearance of traditional its cost of integrated cutter, good and hardness is different makes it not good in stability that adds man-hour and accuracy in conjunction with density.

In addition, because when carrying out the machining operation, cutter and workpiece are that friction at a high speed can produce " heat ", therefore can rely on the auxiliary of cutting fluid, to avoid the overheated modification of cutter and workpiece, simultaneously can get rid of it again and cut ongoing smear metal, right often cutting fluid can't be rested on because of the design of cutter itself, and cause the cutting fluid consumption big, and the chip removal effect also can't promote, and accumulate easily in the groove of its blade of cutter and blade, and produce its cutting smoothness of interference effect and cutting quality.

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, the wolfram steel that relies on a body of rod and cutter head all to be formed in one, and be the driving fit mode of screw engagement between the two, practise the shortcoming of formula with effective solution, and being provided with drainage and inlet channel on the cutter head and the body of rod makes cutting fluid can bring into play cooling effect, and avoid the cutter head Integrated Chip, quality is cut in influence.

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.

Another purpose of the present utility model is: provide a kind of cutting fluid can flow through in cutter head, to avoid the cutter head Integrated Chip, the improvement structure of the wolfram steel cutting tool of the high temperature that influence is produced when cutting quality and can effectively reduce cutting.

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

A kind of improvement structure of wolfram steel cutting tool, be 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, it is characterized in that: 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, described engagement grooves below is provided with an inlet channel, the end of described inlet channel forms a water inlet, 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, the width dimensions of described engagement grooves equals the gauge of joint flange again, inwall at each blade of cutter head is provided with a discharge outlet in addition, described discharge outlet is to centroclinal one-tenth drainage, and each drainage is communicated to drawing water of inside center, and described drawing water is to be through to the screw rod bottom to form a bailing outlet, and is connected with inlet channel.

Compared with prior art, adopt the advantage that the utlity model has of technique scheme to be:

When the cutter head and the body of rod are spirally connected, rely on outside the screw engagement of screw and screw rod, can rely on engagement grooves to form engaging of driving fit again, so just can improve situation, and can promote the stability and the working (machining) efficiency of precision instrument in conjunction with the space with joint flange.

When carrying out cutting operation, its cutting fluid is to enter inlet channel by water inlet, enters via bailing outlet to draw water again, make cutting fluid flow into drainage respectively, and discharge, avoid cutter head overheated by discharge outlet, effectively cooling cooling can be discharged smear metal again simultaneously smoothly, avoids the cutter head Integrated Chip.

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;

Fig. 3-1 is the profile that the utility model Fig. 3 cuts open along drainage;

Fig. 4 is another embodiment schematic diagram (one) of the present utility model;

Fig. 5 is another embodiment schematic diagram (two) of the present utility model.

Description of reference numerals: the 10-body of rod; The 11-screw; The 12-engagement grooves; The 13-inlet channel; The 131-water inlet; The 20-cutter head; The 21-screw rod; The 22-joint flange; The 23-drainage; The 231-discharge outlet; 24-draws water; The 241-bailing outlet; The 30-body of rod; The 31-engagement grooves; The 40-cutter head; The 41-joint flange; The 50-body of rod; The 51-engagement grooves; The 60-cutter head; The 61-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 shown in Fig. 1 to Fig. 3, Fig. 3-1, 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, be one-body molded wolfram steel material, 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 engagement grooves 12 belows are provided with an inlet channel 13, and the end of described inlet channel forms a water inlet 131;

Described cutter head 20, it is one-body molded wolfram steel material, the bottom of cutter head 20 then protrudes out a screw rod 21, 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 gauge equals the width dimensions of engagement grooves 12, inwall at each blade is provided with a discharge outlet 231 again, described discharge outlet 231 is to centroclinal formation one drainage 23, and what each drainage 23 was collected to inside center draws water 24, described drawing water 24 is to be through to screw rod 21 bottoms, forms a bailing outlet 241, and is connected with inlet channel 13, and by the side-looking profile view, described drainage 23 24 forms a Y font pipeline with drawing water, described draw water 24 roughly the same with drainage 23 calibers, only less than inlet channel 13 calibers;

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

When carrying out cutting operation, its cutting fluid is to enter inlet channel 13 by water inlet 131, enter via bailing outlet 241 again and draw water 24, make cutting fluid flow into drainage 23 respectively, and by discharge outlet 231 discharges, because the caliber of inlet channel 13 is greater than drawing water 24, therefore cutting fluid is collected in and draw water 24, what make that the cutting fluids that draw water in 24 can disperse abundance flow to drainage 23, makes cutting fluid by cutter head 20 discharges, the effect that formed pressure differential is directly washed therebetween, avoid cutter head 20 overheated, effectively reach the cooling refrigerating function, can smoothly smear metal be discharged again simultaneously, avoid cutter head 20 Integrated Chips.

Again, see also shown in Figure 4, be another embodiment of the present utility model (), its body of rod 30 engagement grooves 31 form the abducent taper of central portion, and cutter head 40 its joint flanges 41 form the taper that reduces in central portion, so, rely on the design of taper, the contact area that cutter head 40 is combined with the body of rod 30 becomes greatly, and positional accuracy when strengthening the combining of its body of rod 30 and cutter head 40, and the contact area that relies on both becomes big, also can strengthen the steadiness of combination; Moreover, see also shown in Figure 5ly, be another embodiment of the present utility model (two), promptly its body of rod 50 engagement grooves 51 form tool inclined plane shapes, and cutter head 60 its joint flanges 61 also form inclined plane shape, to reach aforementioned same effect.

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, be 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, it is characterized in that: 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, described engagement grooves below is provided with an inlet channel, the end of described inlet channel forms a water inlet, 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, the width dimensions of described engagement grooves equals the gauge of joint flange again, inwall at each blade of cutter head is provided with a discharge outlet in addition, described discharge outlet is to centroclinal one-tenth drainage, and each drainage is communicated to drawing water of inside center, and described drawing water is to be through to the screw rod bottom to form a bailing outlet, and is connected with inlet channel.

2. the improvement structure of wolfram steel cutting tool according to claim 1 is characterized in that: described body of rod engagement grooves forms the abducent taper of central portion, and its joint flange of cutter head then forms the taper that reduces in central portion.

3. the improvement structure of wolfram steel cutting tool according to claim 1 is characterized in that: described draw water with the drainage caliber less than the inlet channel caliber.