CN216912346U

CN216912346U - Saw tooth structure of on-line cutting direct cutting cold saw and saw blade using saw tooth

Info

Publication number: CN216912346U
Application number: CN202121356253.4U
Authority: CN
Inventors: 宁建峰
Original assignee: Zhejiang Zhiguang Precision Tools Co ltd
Current assignee: Zhejiang Zhiguang Precision Tools Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2022-07-08
Anticipated expiration: 2031-06-17

Abstract

The utility model discloses a sawtooth structure of an online cutting direct cutting cold saw, which comprises sawteeth, wherein the middle part of the top end of each sawtooth is provided with a cutting surface, inclined surfaces are formed on two sides of the cutting surface at the top of each sawtooth in a machining mode, and a through chip breaker groove parallel to the cutting direction is formed in any one of the inclined surfaces. According to the saw tooth structure of the on-line cutting direct cutting cold saw and the saw blade using the saw tooth, the inclined plane is arranged, so that chip removal after cutting is facilitated, the friction surface is reduced, heating is reduced, the sharpness of the saw tooth is increased to a certain extent, the inclined plane is matched with the chip breakers which are alternately arranged, waste chips are easily broken by the chip breakers with height difference with the inclined plane, the chip breaking capacity is increased, and chip removal is facilitated; through setting up radial clearance angle, tangential clearance angle and inclination, be favorable to the chip removal, clearance angle can reduce the friction surface to a certain extent simultaneously, reduces calorific capacity.

Description

Saw tooth structure of on-line cutting direct cutting cold saw and saw blade using saw tooth

Technical Field

The utility model relates to the technical field of saw blades, in particular to a saw tooth structure of an online cutting direct cutting cold saw and a saw blade using the saw tooth.

Background

Disc-shaped cutting blades are high-efficiency cutting tools developed in the 80 s, and in recent years, alloy blades having a cemented carbide tip as a cutting edge have been widely used.

Corresponding the straight cutting saw bit, when cutting tubular product, especially to the great tubular product of welding seam, there is the not unobstructed shortcoming of chip removal in the tool bit of current saw bit, and the cutting plane friction can produce a large amount of cutting heat simultaneously, can shorten the life-span of tool bit greatly, also influences the effect of processing.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, one object of the present invention is to provide a sawtooth structure of an on-line cutting straight cutting cold saw, wherein a blade surface has a blade inclination angle, which is beneficial for chip removal, and simultaneously, the sawtooth structure can reduce the friction surface of a cutting surface and reduce the cutting temperature, and can be matched with a chip breaker groove arranged in a staggered manner, so as to break waste chips conveniently and enhance the chip breaking capability.

The technical scheme of the utility model is as follows:

the sawtooth structure of the on-line cutting direct cutting cold saw comprises sawteeth, wherein a cutting surface is arranged in the middle of the top end of each sawtooth, inclined surfaces are formed on two sides of the cutting surface at the top of each sawtooth in a machining mode, and a through chip breaker groove parallel to the cutting direction is formed in any one of the inclined surfaces.

Further, the width of the cutting surface is 0.8 mm.

Furthermore, the width of the chip breaker groove is 0.5mm, and the processing depth is 0.25 mm.

Further, the edge inclination angle alpha of the inclined surface is 5-20 degrees.

Furthermore, the two end sides of the sawtooth 1 are inclined inwards in the radial direction and the cutting direction to form a radial clearance angle and a tangential clearance angle.

Further, the inner inclination angle β is formed by inclining toward the flank face at both sides of the rake face of the saw tooth 1.

Further, the inclination angle beta is 1-8 degrees.

Further, the inner inclination angle beta is inclined inwards from the middle of the sawtooth, and a sharper blade zone is formed at the middle of the front face of the sawtooth.

The saw blade with the saw tooth structure comprises a saw blade body, wherein a tooth seat matched with the saw teeth is machined on the saw blade body and used for welding and fixing, and chip breakers on the inclined surfaces of two adjacent saw teeth are arranged in a staggered mode.

Further, the serrations are assembled with a negative rake angle.

The utility model has the following beneficial effects: the inclined surface is favorable for chip removal after cutting, the friction surface is reduced, heating is reduced, the sharpness of the sawteeth is increased to a certain extent, the inclined surface is matched with the chip breakers which are alternately arranged, waste chips are easily broken by the chip breakers with height difference with the inclined surface, the chip breaking capacity is increased, and chip removal is more favorable; through setting up radial clearance angle, tangential clearance angle and inclination, be favorable to the chip removal, clearance angle can reduce the friction surface to a certain extent simultaneously, reduces calorific capacity.

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 principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural diagram of a saw tooth structure of an on-line cutting direct cutting cold saw according to the present invention;

FIG. 2 is a left side view of the structure of FIG. 1;

FIG. 3 is a schematic view of the inverted orientation of the serrations of the interrupted chip groove of FIG. 1;

FIG. 4 is a schematic top view of the saw teeth;

FIG. 5 is a schematic view of a saw blade using the saw teeth of FIG. 1;

FIG. 6 is an enlarged view of a portion of the teeth and blade body of FIG. 5.

In the figure: 1-saw tooth; 2-cutting the surface; 3-inclined plane; an alpha-blade rake angle; 4-chip breaker groove; 5-radial clearance angle; 6-tangential clearance angle; beta-dip angle; 7-blade body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

Example one

Referring to fig. 1-3, a sawtooth structure of an on-line cutting direct cutting cold saw comprises a sawtooth 1, wherein a cutting surface 2 (a cutter feeding surface) is arranged in the middle of the top end of the sawtooth 1, inclined surfaces 3 are formed on two sides of the cutting surface 2 at the top of the sawtooth 1 in a machining mode, and a through chip breaker groove 4 parallel to the cutting direction is formed in any one of the inclined surfaces 3. As shown in fig. 4, when the saw teeth 1 are used, the chip breakers 4 of adjacent saw teeth 1 are alternately arranged.

In the present embodiment, the width of the cutting face 2 is 0.8 mm; the width of the chip breaker groove 4 is 0.5mm, and the processing depth is 0.25 mm; meanwhile, the blade inclination angle alpha of the inclined surface 3 is 5-20 degrees, in the embodiment, the blade inclination angle alpha is 8 degrees, and in the actual production, a person skilled in the art can select a proper machining angle according to the actual requirement.

Set up inclined plane 3, be favorable to carrying out the chip removal after the cutting, reduce the friction surface, reduce and generate heat, also increased the sharpness of sawtooth to a certain extent, inclined plane 3 cooperates chip breaker 4 that sets up in turn, and the sweeps easily breaks through chip breaker 4 that has the difference in height with inclined plane 3, increases the chip breaking ability, more does benefit to the chip removal.

Example two

Referring to fig. 2 and 4, the two end sides of the sawtooth 1 are inclined inwards to form a radial clearance angle 5 and a tangential clearance angle 6 (in the embodiment, the height difference of the radial clearance angle and the height difference of the tangential clearance angle are 0.12mm and 0.03mm respectively by grinding the two ends of the sawtooth);

the two sides of the front tool face of the sawtooth 1 incline towards the rear tool face to form an inner inclination angle beta, the inner inclination angle beta is preferably 1-8 degrees, in the embodiment, the inner inclination angle is 3 degrees, meanwhile, the inner inclination angle beta inclines inwards from the middle of the sawtooth 1, so that a sharper blade zone is formed in the middle of the front tool face of the sawtooth 1, and the cutting surface 2 is matched to facilitate cutting, chip breaking and chip removal.

EXAMPLE III

Referring to fig. 5 and 6, the saw blade using the saw tooth structure comprises a saw blade body 7, wherein a tooth seat matched with the saw teeth 1 is processed on the saw blade body 7 for welding and fixing, and meanwhile, the chip breakers 4 on the inclined surfaces 3 of two adjacent saw teeth 1 are arranged in a staggered mode. The saw tooth 1 has a negative rake angle when assembled, which in this embodiment is 11 °.

In the present application, the structures and the connection relations that are not described in detail are all the prior art, and the structures and the principles thereof are known in the prior art and are not described herein again.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a sawtooth structure of on-line cutting rip cutting cold saw, includes the sawtooth, sawtooth top middle part is provided with cutting face, its characterized in that: inclined planes are formed on the two sides of the cutting surface at the top of the sawtooth in a machining mode, and a through chip breaker groove parallel to the cutting direction is formed in any one inclined plane.

2. The saw tooth structure of an on-line cutting direct cutting cold saw as claimed in claim 1, wherein: the width of the cutting surface is 0.8 mm.

3. The saw tooth structure of an on-line cutting direct cutting cold saw according to claim 1, wherein: the width of the chip breaker is 0.5mm, and the processing depth is 0.25 mm.

4. The saw tooth structure of an on-line cutting direct cutting cold saw according to claim 1, wherein: the edge inclination angle alpha of the inclined surface is 5-20 degrees.

5. The saw tooth structure of an on-line cutting direct cutting cold saw as claimed in claim 1, wherein: the two end sides of the sawteeth are inclined inwards in the radial direction and the cutting direction to form a radial clearance angle and a tangential clearance angle.

6. The saw tooth structure of an on-line cutting direct cutting cold saw as claimed in claim 1, wherein: and the two sides of the front cutter face of the sawtooth incline towards the rear cutter face to form an inner inclination angle beta.

7. The saw tooth structure of an on-line cutting direct cutting cold saw as claimed in claim 6, wherein: the inclination angle beta is 1-8 degrees.

8. The saw tooth structure of an on-line cutting direct cutting cold saw as claimed in claim 6, wherein: the inner inclination angle beta is inwards inclined from the middle of the sawtooth, and a sharper blade zone is formed at the middle of the front face of the sawtooth.

9. A saw blade using the saw tooth structure of the on-line cutting direct cutting cold saw according to any one of claims 1 to 8, comprising a blade body on which a tooth seat matched with the saw tooth is processed for welding fixation, characterized in that: the chip breaker grooves on the inclined surfaces of two adjacent sawteeth are arranged in a staggered mode.

10. The saw blade of the saw tooth structure of the on-line cutting straight cold saw as set forth in claim 9, wherein: the teeth have a negative rake angle when assembled.