A precision cutting saw

Abstract

A precision cutting saw comprises a saw blade base with a mounting hole and a tungsten steel cutter head. The outer edge of the saw blade base is provided with saw teeth in the circumferential direction. A tooth bottom chip groove is provided between adjacent saw teeth. A tungsten steel cutter head is welded on the saw blade base tooth seat facing the cutting direction of the saw teeth. The cutting surface of the tungsten steel cutter head faces the cutting direction. The cutting edge of the tungsten steel cutter head is an inclined type with one end high and the other end low. Three adjacent tungsten steel cutter heads form a group. The interval angles of two adjacent tungsten steel cutter heads in the group on the circumferential direction of the saw blade base are α and β respectively in the clockwise direction. The interval angles of two adjacent groups on the circumferential direction of the saw blade base are γ. The saw blade base is provided with a heat dissipation groove. The present invention adopts a saw blade base with sufficient strength and a tungsten steel cutter head with a long service life, wherein the tungsten steel cutter head is an inclined type to achieve a cutting effect; and the heat dissipation groove is provided to make it easier for the blade to dissipate heat, so that the saw blade can cut easily. It can not only ensure the accuracy and finish, but also increase the cutting life of the saw blade and improve production efficiency.

Description

Technical Field

[0001] The invention relates to a precision cutting saw. Background Art

[0002] In the field of wood processing, users have increasingly higher requirements for the dimensional accuracy and smoothness of the cutting surface, while the conventional cutting saw blades originally used have low dimensional accuracy and short processing life. Summary of the invention

[0003] In order to overcome the above problems, the present invention provides a precision cutting saw which can not only ensure accuracy but also increase the cutting life of the saw blade and improve production efficiency.

[0004] The technical scheme adopted by the present invention is: a precision cutting saw, comprising a saw blade base with a mounting hole and a tungsten steel cutter head, saw teeth are arranged in the circumferential direction of the outer edge of the saw blade base, a tooth bottom chip groove is arranged between adjacent saw teeth, a tungsten steel cutter head is welded on the saw blade base tooth seat facing the cutting direction of the saw teeth, the cutting surface of the tungsten steel cutter head faces the cutting direction, the cutting edge of the tungsten steel cutter head is in an inclined shape with one end higher than the other end, three adjacent tungsten steel cutter heads form a group, the interval angles of two adjacent tungsten steel cutter heads in the group on the circumferential direction of the saw blade base are α and β respectively in the clockwise direction, and the interval angle of two adjacent groups on the circumferential direction of the saw blade base is γ;

[0005] The saw blade base is provided with heat dissipation grooves, which include a first heat dissipation groove and a second heat dissipation groove. The first heat dissipation grooves are evenly distributed on the outer circumference of the saw blade base, and the contour line of the first heat dissipation groove is composed of continuous small arc segments, large arc segments and straight line segments that are smoothly connected. The straight line segment of the first heat dissipation groove is connected to the bottom of the chip groove at the bottom of the tooth; the second heat dissipation groove is arranged on the saw blade base and is located between the tungsten steel cutter head and the mounting hole. Multiple second heat dissipation grooves are arranged at intervals along the circumferential direction. The second heat dissipation groove includes a serpentine slit and two circular holes, and the two circular holes are arranged at both ends of the slit.

[0006] Furthermore, the interval angle α is smaller than the interval angle β, and the interval angle β is smaller than the interval angle γ.

[0007] Furthermore, the number of the first heat dissipation slots and the number of the second heat dissipation slots are both greater than four.

[0008] Furthermore, the saw blade base has an HRC hardness of 42-46.

[0009] The beneficial effects of the present invention are: by adopting a saw blade base with sufficient strength and a tungsten steel cutter head with a long service life, wherein the tungsten steel cutter head is grinded and processed by a high-precision machine with an oblique processing program to have an oblique shape, a cutting effect can be achieved; and by setting a heat dissipation groove, the heat dissipation of the blade is easier, so that the saw blade can cut easily. Not only can the accuracy and finish be guaranteed, but also the cutting life of the saw blade can be increased, and the production efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the present invention.

[0011] Figure 2 It is the front view of the saw blade base.

[0012] Figure 3 This is the left view of the tungsten steel cutter head.

[0013] Figure 4 A partial schematic diagram of the present invention

[0014] Explanation of the reference numerals: 1. saw blade base, 2. saw teeth, 3. heat dissipation groove, 21. saw blade base tooth seat, 22. tooth bottom chip groove, 4. tungsten steel cutter head, 5. mounting hole. DETAILED DESCRIPTION

[0015] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] Referring to the attached drawings, a precision cutting saw includes a saw blade base 1 with a mounting hole 5 and a tungsten steel cutter head 4. The outer edge of the saw blade base 1 is provided with saw teeth 2 in the circumferential direction. A tooth bottom chip groove 22 is provided between adjacent saw teeth 2. A tungsten steel cutter head 4 is welded on the saw blade base tooth seat 21 facing the cutting direction of the saw teeth 2. The cutting surface of the tungsten steel cutter head 4 faces the cutting direction. The cutting edge of the tungsten steel cutter head 4 is an inclined shape with one end high and the other end low. It is processed to the required angle by a high-precision machine with an inclined processing program. Three adjacent tungsten steel cutter heads 4 form a group. The interval angles of two adjacent tungsten steel cutter heads 4 in the group in the circumferential direction of the saw blade base 1 are α and β in the clockwise direction, respectively. The interval angles of two adjacent groups in the circumferential direction of the saw blade base 1 are γ; the interval angle α is smaller than the interval angle β, and the interval angle β is smaller than the interval angle γ. The saw blade base 1 is installed on the machine through the mounting hole 5, and a heat treatment process is adopted to ensure that the HRC hardness of the saw blade base 1 is 42-46.

[0019] The saw blade base 1 is provided with heat dissipation grooves 3, which include first heat dissipation grooves and second heat dissipation grooves. The first heat dissipation grooves are uniformly distributed on the outer circumference of the saw blade base 1. The contour of the first heat dissipation groove is composed of a continuous small arc segment, a large arc segment and a straight line segment connected smoothly. The straight line segment of the first heat dissipation groove is connected to the bottom of the tooth bottom chip groove 22; the second heat dissipation groove is arranged on the saw blade base 1 and is located between the tungsten steel cutter head 4 and the mounting hole 5. A plurality of second heat dissipation grooves are arranged at intervals along the circumference. The second heat dissipation grooves include a serpentine slit and two circular holes, and the two circular holes are arranged at both ends of the slit. The number of the first heat dissipation groove and the second heat dissipation groove is greater than 4.

[0020] The contents described in the embodiments of this specification are merely an enumeration of the implementation forms of the inventive concept. The protection scope of the present invention should not be regarded as limited to the specific forms described in the embodiments. The protection scope of the present invention also extends to the equivalent technical means that can be conceived by those skilled in the art based on the inventive concept.

Claims

1. A precision cutting saw, comprising a saw blade base (1) with a mounting hole (5) and a tungsten steel cutter head (4), the outer edge of the saw blade base (1) is provided with saw teeth (2) in the circumferential direction, a tooth bottom chip groove (22) is provided between adjacent saw teeth (2), a tungsten steel cutter head (4) is welded on a saw blade base tooth seat (21) facing the cutting direction of the saw teeth (2), the cutting surface of the tungsten steel cutter head (4) faces the cutting direction, and the cutting edge of the tungsten steel cutter head (4) is inclined with one end higher than the other end, characterized in that: Three adjacent tungsten steel cutter heads (4) form a group, and the spacing angles of two adjacent tungsten steel cutter heads (4) in the group on the circumference of the saw blade base (1) are α and β respectively in the clockwise direction, and the spacing angle of two adjacent groups on the circumference of the saw blade base (1) is γ; the spacing angle α is smaller than the spacing angle β, and the spacing angle β is smaller than the spacing angle γ; The saw blade base (1) is provided with a heat dissipation groove (3), the heat dissipation groove (3) includes a first heat dissipation groove and a second heat dissipation groove, the first heat dissipation groove is evenly distributed on the outer circumference of the saw blade base (1), the contour line of the first heat dissipation groove is composed of a continuous small arc segment, a large arc segment and a straight line segment smoothly connected, and the straight line segment of the first heat dissipation groove is connected to the bottom of the tooth bottom chip groove (22); the second heat dissipation groove is arranged on the saw blade base (1) and is located between the tungsten steel cutter head (4) and the mounting hole (5), and a plurality of second heat dissipation grooves are arranged at intervals along the circumference, and the second heat dissipation groove includes a serpentine slit and two circular holes, and the two circular holes are arranged at both ends of the slit.

2. A precision cutting saw according to claim 1, characterized in that: The number of the first heat dissipation slots and the number of the second heat dissipation slots are both greater than 4.

3. A precision cutting saw according to claim 1, characterized in that: The saw blade base (1) has an HRC hardness of 42-46.

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