CN214517945U

CN214517945U - Hard alloy circular saw blade

Info

Publication number: CN214517945U
Application number: CN202120684149.1U
Authority: CN
Inventors: 陈树林
Original assignee: Lucheng Lufa Saw Co ltd
Current assignee: Lucheng Lufa Saw Co ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-10-29
Anticipated expiration: 2031-04-02

Abstract

The utility model discloses a carbide saw blade. The hard alloy circular saw blade can reduce the use cost of the alloy cutter head, improve the production efficiency, improve the cutting performance and promote the economic benefit. It includes the saw bit lamellar body and tool bit, is provided with dentate arch at saw bit lamellar body outer fringe equipartition, and every dentate bellied upper portion all is equipped with the tool bit holder that is used for placing the tool bit, the side of tool bit holder is side end wall, side end wall and tool bit contact and set up side by side in saw bit lamellar body thickness direction, side end wall and tool bit pass through the fix with screw and are in the same place, there are two the same cutting edges on the tool bit.

Description

Hard alloy circular saw blade

Technical Field

The utility model belongs to the technical field of the saw bit technique and specifically relates to a carbide saw blade.

Background

In the field of machining technology in the field of industrial manufacturing, saw blades are one of the indispensable tools. Saw blades are a general term for thin circular cutters used to cut solid materials. The hard alloy circular saw blade has the advantages of high rotating speed, good cutting quality and precision, high production efficiency and the like, and can still exert excellent performance in the environment with severe working condition environment. However, the defects in the use performance of the cemented carbide saw blade greatly restrict the exertion of higher performance and the cost requirements of customers, and the specific defects are shown in the following aspects: firstly, the high temperature welding influences, and welding work is accomplished to alloy sword piece and saw bit lamellar body under high temperature environment, and the repeated heating can lead to the fact the decarbonization to the heating region of lamellar body itself, and the tissue changes, and in use causes crack defect easily. Secondly, repeated high-temperature heating can have adverse effects on the rigidity, hardness, strength and stress of the sheet body. Thirdly, the alloy cutter block welded in a fixed mode can only finish cutting by one cutting edge, and cannot be reused after being damaged, so that the use cost of the alloy is greatly increased. Fourthly, under the influence of heat, the effect of the mechanical property and the cutting property of the coating of the alloy cutter block can be seriously reduced in the high-temperature welding process of the hard alloy cutter block coated by the CVD and PVD, so that the hard alloy cutter block cannot be widely applied, and the technical problem to be improved in the field is solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art, providing a carbide saw blade, it improves production efficiency and improves cutting performance, reduces the utilization cost of alloy sword piece simultaneously.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

the utility model provides a carbide saw blade, includes the saw bit lamellar body and tool bit, is provided with dentate arch at saw bit lamellar body outer fringe equipartition, and every dentate arch's upper portion all is equipped with the tool bit seat that is used for placing the tool bit, the side of tool bit seat is the side end wall, side end wall and tool bit contact and set up side by side in saw bit lamellar body thickness direction, side end wall and tool bit pass through the fix with screw and are in the same place, there are two the same cutting edges on the tool bit.

Preferably, the cutting edge of the tip is located at the acute-angled tip of the parallelogram.

Preferably, an included angle between one surface of the side end wall of the tooth-shaped protrusion facing the tool bit and the tangential direction in the radial reference surface is 0.5-2.5 degrees, and an included angle between one surface of the side end wall of the tooth-shaped protrusion facing the tool bit and the radial direction in the radial reference surface is 0.5-2.5 degrees.

Preferably, a protruding positioning boss is arranged at the position of the screw hole on one surface, facing the cutter head, of the side end wall of the dentate protrusion, and taper holes corresponding to the positioning bosses are arranged at two ends of the screw hole of the cutter head.

Preferably, the side end walls of the adjacent dentations are opposite to the position sequence of the cutter head, and the side end walls of the adjacent dentations are inclined towards one surface of the cutter head at the same angle and are arranged in a staggered way.

Preferably, the cutting edges on the tip are symmetrically distributed about the screw axis of the tip.

After adopting above-mentioned technical scheme, owing to set up demountable installation, and the tool bit that rotatable installation used sets up two the same cutting edges on this tool bit, after the alloy sword piece wearing and tearing of sawtooth, can carry out the azimuth rotation to the sword piece blade of wearing and tearing, realize the quick switch-over of cutting edge, a tool bit can be equivalent to two traditional tool bits to reduce the utilization cost of alloy sword piece, improve production efficiency, and improve cutting performance. The polygonal rotatable bolt fastening type alloy circular saw blade more conveniently and quickly enables the hard alloy cutter block and the ceramic cutter block which are treated by CVD and PVD coatings to be popularized and applied more widely, improves the cutting efficiency of processing special high-alloy and other difficult-to-process materials by times, and generates remarkable economic benefits for the saw blade industry.

Drawings

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

FIG. 2 is a partially enlarged view of the tooth-like protrusions of the present invention, with the tool bit omitted;

fig. 3 is a schematic structural diagram of the middle cutter head of the present invention.

The reference numbers in the figures are as follows:

1-saw blade body; 101-a dentate bulge; 1011-side end wall; 1012-positioning a boss; 1013-tool bit slot; 102-a central hole; 103-mounting holes; 104-hoisting holes; 2, a cutter head; 201-screw hole; 202-a cutting edge; 3-screw.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The following description is only for the purpose of explanation and is not intended to limit the invention.

As shown in fig. 1, fig. 2 and fig. 3, the utility model relates to a carbide circular saw blade, including the saw bit lamellar body 1 and tool bit 2, be provided with dentate arch 101 at 1 outer fringe equipartition of saw bit lamellar body, the upper portion of every dentate arch 101 all is equipped with the tool bit seat that is used for placing tool bit 2, and there is a side end wall 1011 the side of tool bit seat, side end wall 1011 and tool bit 2 contact and set up side by side on 1 thickness direction of saw bit lamellar body, side end wall 1011 and tool bit 2 pass through the screw 3 to be fixed together, there are two the same cutting edges 202 on the tool bit 2. The corner of the tool bit seat where the tool bit 2 protrudes can be provided with a tool bit groove 1013.

Fig. 2 is a partial enlarged view of the tooth-shaped projections 101 of the saw blade body, the holder of each tooth-shaped projection 101 includes a plurality of surfaces contacting with the tool bit 2, wherein one surface of the side end wall 1011 of one tooth-shaped projection 101 facing the tool bit 2 is an M surface, the M surface contacts with the side surface of the tool bit 2, the other surfaces of the holder contact with the bottom and rear surfaces of the tool bit 2 and play a supporting role, the surface of the side end wall 1011 of the tooth-shaped projection 101 facing the tool bit 2 in fig. 2 forms an included angle of 0.5 ° to 2.5 ° with the tangential direction in the radial reference plane, and the surface of the side end wall 1011 of the tooth-shaped projection 101 facing the tool bit 2 forms an included angle of 0.5 ° to 2.5 ° with the radial direction in the radial reference plane. The radial reference surface may be located between the side surfaces of the two sides of the saw blade body 1, and is an arbitrary plane parallel to the side surfaces of the two sides of the saw blade body 1, the radial direction of the saw blade body 1 displayed on the radial reference surface is a radial direction, the tangential direction of each position on the circumference of the saw blade body 1 displayed on the radial reference surface is a tangential direction of each position, the side end wall 1011 forms a certain angle with the radial direction and the tangential direction, so that the tool bit 2 also forms a certain angle with the radial direction and the tangential direction, the setting of the angle belongs to the common general knowledge in the art, and detailed description is omitted here.

A protruding positioning boss 1012 may be disposed at a screw hole on one surface of the side end wall 1011 facing the tool bit 2, and two ends of the screw hole 201 of the tool bit 2 are disposed with tapered holes corresponding to the positioning boss 1012.

Preferably, the side end walls 1011 of the adjacent dentations 101 and the bit 2 are located in opposite order, and the side end walls 1011 are inclined towards one surface of the bit 2 at the same angle and are staggered. The cutting edges on the tool bit 2 are symmetrically distributed by taking the screw hole axis of the tool bit as the center.

The shape of tool bit 2 can set up to different shapes according to the operating condition demand, for example, 2 side shapes of tool bit are parallelogram, and the cutting edge of tool bit 2 is located parallelogram's acute angle top. When the structure is used, the cutter head 2 can rotate, so that the two cutting edges are respectively positioned at the cutting positions, thus the purpose of twice utilization is realized by the two cutting edges, and the service life of the cutter head is prolonged. The cutting head 2 can be made of alloy material or ceramic material.

The center of the saw blade body 1 can be provided with a center hole 102, mounting holes 103 are distributed around the center hole 102, and hoisting holes 104 are arranged on the periphery of the mounting holes 103.

The present invention has been described in terms of some embodiments, and is not intended to be limited to the embodiments, and any modifications, improvements, equivalents, and the like that are made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A hard alloy circular saw blade is characterized in that: including the saw bit lamellar body and tool bit, be provided with dentate arch at saw bit lamellar body outer fringe equipartition, every dentate bellied upper portion all is equipped with the tool bit seat, the side of tool bit seat is the side end wall, side end wall and tool bit contact and set up side by side in saw bit lamellar body thickness direction, side end wall and tool bit pass through the fix with screw together, there are two the same cutting edges on the tool bit.

2. The cemented carbide circular saw blade as claimed in claim 1, wherein: the side surface of the cutter head is in a parallelogram shape, and the cutting edge of the cutter head is positioned at the top end of an acute angle of the parallelogram.

3. The cemented carbide circular saw blade as claimed in claim 1, wherein: one surface of the side end wall of the dentate bulge, facing the tool bit, forms an included angle of 0.5-2.5 degrees with the tangential direction in the radial reference surface, and one surface of the side end wall of the dentate bulge, facing the tool bit, forms an included angle of 0.5-2.5 degrees with the radial direction in the radial reference surface.

4. The cemented carbide circular saw blade as claimed in claim 1, wherein: the side end wall of the tooth-shaped bulge is provided with a bulge positioning boss at the position of the screw hole facing to one surface of the tool bit, and two ends of the screw hole of the tool bit are provided with taper holes corresponding to the positioning bosses.

5. The cemented carbide circular saw blade as claimed in claim 1, wherein: the side end walls of the adjacent dentations are opposite to the position sequence of the cutter head, and the side end walls of the adjacent dentations are inclined towards one surface of the cutter head at the same angle and are arranged in a staggered way.

6. The cemented carbide circular saw blade as claimed in claim 1, wherein: the cutting edges on the cutter head are symmetrically distributed by taking the screw hole axis of the cutter head as the center.