CN215199949U

CN215199949U - Circular saw blade for cutting steel plate

Info

Publication number: CN215199949U
Application number: CN202022806053.6U
Authority: CN
Inventors: 俞晖; 吴功益; 罗敏; 余林涛; 张周达; 罗辉
Original assignee: Hangzhou Wagen Precision Tooling Co ltd
Current assignee: Hangzhou Wagen Precision Tooling Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-12-17
Anticipated expiration: 2030-11-27

Abstract

The utility model provides a circular saw blade for cutting steel sheet, includes the saw bit base member, the center of saw bit base member is equipped with the mounting hole, and the outer fringe of saw bit base member is equipped with the sawtooth along circumference, sets up tooth bottom chip groove on the saw bit base member between the adjacent sawtooth, and the sawtooth tool bit divide into two sets ofly, and first group's sawtooth tool bit includes the first sawtooth tool bit of a plurality of, and second group's sawtooth tool bit includes a plurality of second sawtooth tool bit, first sawtooth tool bit with second sawtooth tool bit is adorned admittedly in turn on the toothholder of the direction that the sawtooth is faced to the cutting, and the cutting edge of first sawtooth tool bit and second sawtooth tool bit all faces to the cutting direction, and the radial height of second sawtooth tool bit is greater than the radial height of first sawtooth tool bit for the top surface of second sawtooth tool bit surpasss the top surface of first sawtooth tool bit. The utility model has the advantages that: avoid the stifled bits that the high tooth smear metal volume of saw blade is big arouses, reduce simultaneously because of wearing and tearing or the crackle that the sawtooth tool bit thermal stress produced.

Description

Circular saw blade for cutting steel plate

Technical Field

The utility model relates to a circular saw blade for cutting steel sheet is applicable to cutting off of metal material panels such as carbon steel, alloy steel.

Background

With the rapid development of the market of the circular saw blade for metal cutting and the change of the use conditions of the circular saw blade. What originally cut is mostly bar stock, and more panel appears now. The circular saw blade of the original conventional design can not meet the cutting condition, not only serious tooth breakage, rough surface of a machined part and abnormal discharge of cutting chips occur, but also the saw blade is deformed like a lotus leaf or is broken due to uneven stress, and the use of equipment and the operation safety of personnel are seriously influenced.

Disclosure of Invention

The utility model discloses overcome prior art's above-mentioned shortcoming, provide a circular saw blade is used in steel sheet cutting, the utility model discloses the saw bit adopts novel profile of tooth design and optimizes sawtooth size parameter, makes the circular saw blade satisfy cutting off of metal material panels such as carbon steel, alloy steel.

The utility model adopts the technical proposal that:

the utility model provides a circular saw blade for cutting steel sheet, includes the saw bit base member, the center of saw bit base member is equipped with the mounting hole, the outer fringe of saw bit base member is equipped with the sawtooth along circumference, sets up tooth bottom chip groove on the saw bit base member between the adjacent sawtooth, its characterized in that: the sawtooth tool bits divide into two sets ofly, and first group's sawtooth tool bit includes the first sawtooth tool bit of a plurality of, and second group's sawtooth tool bit includes a plurality of second sawtooth tool bit, and first sawtooth tool bit with the second sawtooth tool bit is adorned admittedly in turn and is met on the toothholder of the direction of cutting, first sawtooth tool bit with the cutting edge of second sawtooth tool bit all meets to cutting direction, and the radial height of second sawtooth tool bit is greater than the radial height of first sawtooth tool bit for the top surface of second sawtooth tool bit mutually exceeds the top surface of first sawtooth tool bit.

Preferably, the sawtooth tool bit is a trapezoidal tool bit.

Preferably, the radial height of the second sawtooth cutting head exceeds the radial height of the first sawtooth cutting head by 0.20-0.25 mm.

Preferably, both sides of the top end of the cutting edge of the first serrated blade and the top end of the cutting edge of the second serrated blade are chamfered.

Preferably, a clamping groove for fixedly mounting the sawtooth tool bit is formed in the direction, facing the cutting direction, of the tooth holder of the sawtooth substrate.

Preferably, the HRC hardness of the saw blade matrix is 45-47.

Preferably, the saw blade bit is a metal ceramic bit.

The utility model has the advantages that: by using a saw blade base body of sufficient strength and a long-life cermet bit having a trapezoidal shape after being ground and machined using a high-precision machine including a chamfering machining program, a cutting effect can be realized. Not only can ensure the precision and the smoothness, but also can prolong the cutting life of the saw blade and improve the production efficiency. Avoid the stifled bits that the high tooth smear metal volume of saw blade is big arouses, reduce simultaneously because of wearing and tearing or the crackle that the sawtooth tool bit thermal stress produced.

Drawings

FIG. 1 is a schematic structural view of a circular saw blade according to the present invention;

FIG. 2a is a schematic perspective view of the circular saw blade of the present invention;

fig. 2b is a partial enlarged view of fig. 2 a.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

With reference to the accompanying drawings:

example 1 a circular saw blade for cutting a steel plate according to the present invention comprises a saw blade base 1, the center of the saw blade matrix is provided with a mounting hole 3, the outer edge of the saw blade matrix is provided with sawteeth along the circumferential direction, the saw blade matrix between the adjacent sawteeth is provided with a tooth bottom chip groove, the sawtooth tool bits 2 are divided into two groups, the first group of sawtooth tool bits comprises a plurality of first sawtooth tool bits 21, the second group of sawtooth tool bits comprises a plurality of second sawtooth tool bits 22, and the first saw-tooth cutter head 21 and the second saw-tooth cutter head 22 are alternately and fixedly arranged on a gear seat of the saw-tooth facing to the cutting direction, the cutting edges of the first and second saw-

tooth segments

21, 22 are both facing in the cutting direction, and the radial height of the second saw tooth tip 22 is greater than the radial height of the first saw tooth tip 21 such that the top surface of the second saw tooth tip exceeds the top surface of the first saw tooth tip.

Preferably, the sawtooth tool bit is a trapezoidal tool bit.

Preferably, the radial height of the second saw-tooth tip 22 exceeds the radial height of the first saw-tooth tip 21 by 0.20 to 0.25 mm.

Preferably, both sides of the top end of the cutting edge of the first saw-tooth tip 21 and the second saw-tooth tip 22 are chamfered.

Preferably, a clamping groove for fixedly mounting a sawtooth tool bit is formed in the direction, facing the cutting direction, of the tooth holder of the sawtooth substrate 1.

Preferably, the HRC hardness of the saw blade matrix is 45-47.

Preferably, the saw blade bit is a metal ceramic bit.

Embodiment 2 the circular saw blade with saw-tooth cutting heads of the present invention is shown in fig. 1, fig. 2a and fig. 2b, and mainly comprises a saw blade base 1 and a saw-tooth cutting head 2, wherein the circular saw blade is provided with a mounting hole 3 at the center of the saw blade base 1; the sawtooth tool bits 2 comprise first sawtooth tool bits 21 and second sawtooth tool bits 22 which are alternately arranged, and the radial height of the second sawtooth tool bits 22 is greater than that of the first sawtooth tool bits 21; the saw blade has saw-tooth tips of size 460 x 2.7 x 2.25 x 50 x 80P, wherein the second saw-tooth tip 22 of the adjacent saw is 0.20-0.25 mm higher than the radial dimension of the first saw-tooth tip 21.

The both sides face chamfer on sawtooth tool bit top is favorable to cutting process in the tool bit heat to give off, and because the profile of tooth influences that second sawtooth tool bit 22 cutting output is bigger than first sawtooth tool bit 21, the tool bit is heated and wearing and tearing are more serious, and the width value of increase cutting edge so that the smear metal heat gives off, reduces the wearing and tearing that the tool bit produced because of the influence of thermal stress. The width of the negative angle surface of the whole saw blade bit is properly reduced, so that the saw blade is lighter and quicker in the quick cutting process and has small resistance.

By combining the design of high and low teeth, the stress of the whole saw teeth is reduced and the roughness of the cutting surface is improved when the saw blade cuts, and the normal curling and discharging of metal chips are also ensured. The differential design of the front ends of the adjacent sawteeth avoids the phenomena that the sawteeth are blocked or have poor heat dissipation due to different cutting quantities, and even the saw blade is deformed or broken.

The utility model discloses a tool bit is installed on metal matrix, forms the saw bit product that supplies special purpose.

The embodiments described in this specification are merely illustrative of implementations of the inventive concepts, and the scope of the invention should not be considered limited to the specific forms set forth in the embodiments, but rather the scope of the invention includes equivalent technical means that can be conceived by those skilled in the art based on the inventive concepts.

Claims

1. The utility model provides a circular saw blade for cutting steel sheet, includes saw bit base member and sawtooth tool bit, the center of saw bit base member is equipped with the mounting hole, the outer fringe of saw bit base member is equipped with the sawtooth along circumference, sets up tooth bottom chip groove on the saw bit base member between the adjacent sawtooth, its characterized in that: the sawtooth tool bits divide into two sets ofly, and first group's sawtooth tool bit includes the first sawtooth tool bit of a plurality of, and second group's sawtooth tool bit includes a plurality of second sawtooth tool bit, and first sawtooth tool bit with the second sawtooth tool bit is adorned admittedly in turn and is installed on the toothholder that the sawtooth met direction of cutting, first sawtooth tool bit with the cutting edge of second sawtooth tool bit all meets to cutting direction, and the radial height of second sawtooth tool bit is greater than the radial height of first sawtooth tool bit for the top surface of second sawtooth tool bit surpasss the top surface of first sawtooth tool bit.

2. A circular saw blade for cutting a steel plate as set forth in claim 1, wherein: the sawtooth tool bit is trapezoidal tool bit.

3. A circular saw blade for cutting a steel plate as claimed in claim 2, wherein: the radial height of the second sawtooth cutter head exceeds the radial height of the first sawtooth cutter head by 0.20-0.25 mm.

4. A circular saw blade for cutting a steel plate as set forth in claim 3, wherein: and two side surfaces of the top end of the cutting edge of the first sawtooth cutter head and the second sawtooth cutter head are chamfered.

5. A circular saw blade for cutting a steel plate as set forth in claim 4, wherein: and a clamping groove for fixedly mounting a saw-tooth tool bit is arranged in the direction of the tooth seat of the saw blade matrix facing the cutting direction.