CN214517943U

CN214517943U - Combined hard alloy circular saw blade

Info

Publication number: CN214517943U
Application number: CN202120684146.8U
Authority: CN
Inventors: 陈树林; 郭虎刚; 陈保鼎; 王高飞; 申言慧
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 modular carbide saw blade. The combined type hard alloy circular saw blade aims at reducing the use cost of the alloy cutter head, improving the production efficiency and the cutting performance and promoting 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 the side 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, the equipartition has 5 ~ 10 the same cutting edges on the tool bit.

Description

Combined 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 modular 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, provide a modular 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 modular 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 bellied 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 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, the equipartition has 5 ~ 10 the same cutting edges on the tool bit.

Preferably, a chip groove is provided at each cutting edge.

Preferably, an included angle between one surface of the side end wall of the dentate bulge, which faces the tool bit, and the tangential direction in the radial reference surface is 0.5-3 degrees, and an included angle between one surface of the side end wall of the dentate bulge, which faces the tool bit, and the radial direction in the radial reference surface is 0.5-3 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, all the cutting edges on the cutter head are symmetrically distributed by taking the screw hole axis of the cutter head as a center.

After adopting above-mentioned technical scheme, owing to set up demountable installation, and the tool bit that rotatable installation used sets up a plurality of 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 a plurality of 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 front view of one embodiment of a modular carbide circular saw blade according to the present invention;

FIG. 2 is a perspective view of the assembled carbide circular saw blade of FIG. 1;

FIG. 3 is an enlarged, fragmentary view of the teeth of the blade body of FIG. 1, with the cutting head omitted;

fig. 4 is a schematic view of the cutting head of fig. 1.

FIG. 5 is a schematic view of a combined carbide circular saw blade according to another embodiment 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; 102-a central hole; 103-mounting holes; 104-hoisting holes; 2, a cutter head; 201-screw hole; 202-a cutting edge; 203-chip space; 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, fig. 3, fig. 4 and fig. 5, the utility model relates to a modular 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 holder that is used for placing tool bit 2, and there is a side end wall 1011 in the side of tool bit holder, 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, the equipartition has 5 ~ 10 the same cutting edges 202 on the tool bit 2.

The tool bit 2 is provided with a screw hole 201 for fixing on the side end wall 1011, each cutting edge 202 of the tool bit 2 can be provided with a chip removal groove 203, when the number of the cutting edges 202 is 5-10, all the cutting edges 202 of the tool bit are located at an obtuse-angle protrusion, and the tool bit can be used for cutting materials with high strength. The material of the cutting head 2 can be selected according to the type and requirements of the work piece to be cut, and for example, an alloy material or a ceramic material can be used.

Fig. 3 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. 3 forms an included angle of 0.5 ° to 3 ° with the tangential direction in the radial reference surface, 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 3 ° with the radial direction in the radial reference surface. The radial reference surface may be any plane located between the side surfaces of the two sides of the saw blade body 1 and 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 radial, the tangential direction of each position on the circumference of the saw blade body 1 displayed on the radial reference surface is tangential to 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 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. The utility model provides a modular carbide saw blade which 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, the equipartition has 5 ~ 10 the same cutting edges on the tool bit.

2. The modular carbide circular saw blade as claimed in claim 1, wherein: each cutting edge is provided with a chip removing groove.

3. The modular 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 0.5-3 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 0.5-3 degrees with the radial direction in the radial reference surface.

4. The modular 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 modular 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 modular carbide circular saw blade as claimed in claim 1, wherein: all cutting edges on the tool bit are symmetrically distributed by taking the axis of the screw hole of the tool bit as the center.