CN214517942U

CN214517942U - Circular saw blade with indexable tool bit

Info

Publication number: CN214517942U
Application number: CN202120675554.7U
Authority: CN
Inventors: 陈树林; 申言慧; 王高飞; 陈保鼎; 郭虎刚
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 circular saw blade with indexable tool bits. The device aims at reducing the use cost of the alloy cutter head, improving the production efficiency, improving the cutting performance and promoting the economic benefit. The device 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 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 outer lane position of tool bit thickness is gone up the staggered distribution and is had the basic face that three areas equal, all is equipped with a transition face between per two basic faces, and six parallel cutting edges are formed with the transition face to basic face on every tool bit.

Description

Circular saw blade with indexable tool bit

Technical Field

The utility model belongs to the technical field of the saw bit technique and specifically relates to a circular saw blade that indexable tool bit used.

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 prior art's not enough, providing a circular saw blade that indexable use of tool bit, 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 circular saw blade that indexable tool bit used, includes saw blade lamellar body and tool bit, is provided with dentate arch at saw blade 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 endwall, side endwall and tool bit contact and set up side by side in saw blade lamellar body thickness direction, side endwall and tool bit pass through the fix with screw together, the staggered distribution has the basic face that three area equals on the outer lane position of tool bit thickness, three basic face is 60 contained angles each other two liang, all is equipped with a transition face between per two basic faces, and the area of all transition faces equals, and the area of transition face is less than the basic face, the transition face is 120 rather than adjacent basic face contained angle, and six parallel cutting edges are formed with the transition face on every tool bit.

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 a taper hole corresponding to the positioning boss is arranged at the outer end of the screw hole of the cutter head.

Furthermore, both ends of the screw hole of the tool bit are provided with taper holes corresponding to the positioning bosses.

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.

After adopting above-mentioned technical scheme, owing to set up demountable installation, and the tool bit that rotatable installation used sets up three the same cutting edge 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 three traditional tool bit 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 perspective view of a circular saw blade with indexable cutting tips according to the present invention;

FIG. 2 is an enlarged partial schematic view of the tooth-like projections and the cutting head of FIG. 1;

FIG. 3 is an enlarged, fragmentary view of the tooth-like projection of FIG. 2, with the cutting head omitted;

fig. 4 is a schematic structural diagram of the 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; 102-a central hole; 103-mounting holes; 104-hoisting holes; 2, a cutter head; 201-screw hole; 202-a cutting edge; 203-transition surface; 204-basic plane; 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, and fig. 4, the utility model relates to a circular saw blade with indexable cutting head, including the saw blade body 1 and the cutting head 2, the outer fringe equipartition of the saw blade body 1 is provided with the dentate bulge 101, the upper portion of every dentate bulge 101 all is equipped with the tool holder that is used for placing the cutting head 2, there is a side end wall 1011 on the side of the tool holder, side end wall 1011 and cutting head 2 contact and set up side by side in the thickness direction of the saw blade body 1, side end wall 1011 and cutting head 2 are together fixed through screw 3, staggered distribution has three basic planes 204 that the area equals on the outer lane position of cutting head 2 thickness, three basic planes 204 are 60 contained angles each other, all be equipped with a transition plane 203 between every two basic planes 204, the area of all transition planes 203 equals, and the area of transition plane 203 is less than basic plane 204, transition plane 203 and its adjacent basic plane 204 contained angle are 120 degrees, the basic and

transition surfaces

204 and 203 of each insert form six parallel cutting edges 202.

The side view shape of the cutting insert 2 corresponds to an equilateral triangle formed by three base surfaces 204, three corners of the equilateral triangle are cut off to form three transition surfaces 203, and in this way, the angle of the cutting insert 2 at the sharp corner of the cutting edge 202 is increased, which is beneficial to reducing the risk of fracture failure of the cutting insert 2. All the cutting edges 202 of the cutting head 2 may be symmetrically distributed around the screw axis of the cutting head, and all the cutting edges 202 of the cutting head are at the same distance from the screw axis of the cutting head. The cutting head 2 can be made of alloy material or ceramic material.

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. 4 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 convex positioning boss 1012 can be arranged at the screw hole on one surface of the side end wall 1011 facing the cutter head 2, and a taper hole corresponding to the positioning boss 1012 is arranged at the outer end of the screw hole 201 of the cutter head. Further, both ends of the screw hole 201 of the cutter head 2 are provided with taper holes corresponding to the positioning bosses 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. All cutting edges on the tool bit 2 use the screw axis of the tool bit as the central symmetry distribution, all cutting edges on the tool bit 2 are the same with the distance of the screw 201 axis of the tool bit 2.

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 circular saw blade with indexable tool bits is characterized in that: the saw blade comprises a saw blade body and a cutter head, wherein toothed protrusions are uniformly arranged on the outer edge of the saw blade body, a cutter head seat used for placing the cutter head is arranged on the upper portion of each toothed protrusion, the side surface of each cutter head seat is a side end wall, the side end walls and the cutter heads are in contact and arranged side by side in the thickness direction of the saw blade body, the side end walls and the cutter heads are fixed together through screws, three basic surfaces with equal areas are distributed on the outer ring position of the thickness of the cutter head in a staggered mode, every two basic surfaces form 60-degree included angles, a transition surface is arranged between every two basic surfaces, the areas of all transition surfaces are equal, the areas of the transition surfaces are smaller than the basic surfaces, the included angles of the transition surfaces and the adjacent basic surfaces are 120 degrees, and six parallel cutting edges are formed by the basic surfaces and the transition surfaces on each cutter head.

2. The circular saw blade with indexable cutting edges 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.

3. The circular saw blade with indexable cutting edges as claimed in claim 1, wherein: the side end wall of the tooth-shaped bulge is provided with a bulge positioning boss at the screw hole on one surface facing the tool bit, and the outer end of the screw hole of the tool bit is provided with a taper hole corresponding to the positioning boss.

4. A circular saw blade with indexable cutting inserts as claimed in claim 3, wherein: the two ends of the screw hole of the cutter head are provided with taper holes corresponding to the positioning bosses.

5. A circular saw blade with indexable cutting tips as claimed in claim 1, wherein: the adjacent side end walls of the tooth-shaped bulges and the cutter head are opposite in position sequence, and the side end walls of the tooth-shaped bulges are inclined towards one surface of the cutter head at the same angle and are arranged in a staggered mode.