Surface-strengthened saw blade matrix and preparation method thereof

Abstract

The surface-strengthened saw blade base body comprises a saw blade base body, a plurality of impact rings are concentrically and coaxially arranged on the two faces of the saw blade base body, the impact rings on the two faces are in one-to-one correspondence and are symmetrically arranged, and each impact ring comprises a plurality of impact points which are arranged around the center of the saw blade base body at equal intervals. The impact points of the corresponding impact rings on the double surfaces are in one-to-one correspondence and are symmetrically arranged; the saw blade base body subjected to surface strengthening keeps good rigidity in the cutting process, and more plates can be cut in a high-quality mode under the low-current condition.

Description

Technical Field

[0001] The invention relates to the technical field of saw blade processing, in particular to a surface-reinforced saw blade substrate and a preparation method thereof. Background Art

[0002] The existing saw blade substrate lacks a method for surface strengthening by physical means, especially for thin saw blade substrates, that is, saw blade substrates with a thickness of no more than 2.5 mm. If such saw blade substrates are not strengthened, they will often deform and be damaged when cutting stone, the replacement frequency is high, and the output is limited. Therefore, there is an urgent need for a surface-strengthened saw blade substrate and a preparation method. Summary of the invention

[0003] The present invention provides a surface-strengthened saw blade substrate and a preparation method thereof, aiming to solve the problem that the saw blade substrate is frequently replaced and easily damaged due to the lack of physical means for surface strengthening of the existing methods focusing on thin saw blade substrates.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: A surface-strengthened saw blade substrate comprises a saw blade substrate, wherein a plurality of impact rings are coaxially and concentrically arranged on both sides of the saw blade substrate, and the impact rings on both sides correspond to each other and are symmetrically arranged; Each of the impact rings includes a plurality of impact points arranged at equal intervals around the center of the saw blade base, and the impact points of the corresponding impact rings on both sides correspond to each other and are arranged symmetrically.

[0005] Preferably, the impact rings are all coaxially and concentrically arranged at the waist of the saw blade base, that is, within a range of one-third to two-thirds of the radius of the saw blade base.

[0006] As a more preferred embodiment, there is at least one impact ring.

[0007] Furthermore, the impact ring at least includes an intermediate ring, and the diameter d of the intermediate ring satisfies the following formula: d=D*0.65; Where d is the diameter of the intermediate ring and D is the diameter of the saw blade base.

[0008] Furthermore, the impact points located in the same impact ring satisfy the following formula: α=360 / N; α is the central angle between adjacent impact points of the same impact ring, and N is the number of impact points; The value range of N at least satisfies that adjacent impact points do not overlap.

[0009] Specifically, the impact points of the same impact ring are all arranged along the radial direction, or along the chord perpendicular to the radius, or are arranged alternately along the radial direction and along the chord perpendicular to the radius.

[0010] A method for preparing a surface-reinforced saw blade substrate, the method for preparing the surface-reinforced saw blade substrate comprising the following steps; S1: Cutting the required rough shape from the steel plate raw material; S2: Heat treatment, which changes the internal structure of the steel through quenching, tempering and cooling processes to achieve appropriate hardness and strength; S3: Post-processing, processing the saw blade base to the finished size; S4: Surface strengthening to improve the rigidity of saw blade base.

[0011] Preferably, S4 also includes the following steps: fixing the saw blade base on the rotating shaft of the impact surface hardening machine, controlling the saw blade base to move to the initial position, and the high-strength impact heads on both sides of the saw blade base coaxially impact both sides of the saw blade base at the same time, so that the surface of the saw blade base undergoes plastic deformation to form completely symmetrical impact marks. After the impact is completed, a group of symmetrical impact points are formed, and then the saw blade base is rotated by a certain angle α and impacted again until all N impact points of the same impact ring are impacted.

[0012] As a more preferred embodiment, the S4 further reports the following steps: first find the middle ring of the impact ring, impact all impact points of the middle ring, and then impact the impact rings on both sides of the middle ring.

[0013] Beneficial effects of the present invention: By physical means, the rigidity of the thin saw blade base is improved. Under the condition of low current, the surface-strengthened saw blade base can obtain more board output and better rigidity by reducing the cutting amount, blade head specifications and saw blade width. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic plan view of the reinforced saw blade base body proposed by the present invention; Figure 2 It is an enlarged schematic diagram of the impact ring proposed by the present invention; Figure 3 Schematic diagram of three arrangements of impact points proposed by the present invention; Figure 4 This is a schematic diagram of the operation of the impact point processing proposed by the present invention; In the figure: 1. saw blade base; 2. impact ring; 3. impact point. DETAILED DESCRIPTION

[0015] As follows, embodiments are further described with reference to the accompanying drawings.

[0016] like Figure 1As shown, as a preferred embodiment 1, a surface-strengthened saw blade substrate comprises a saw blade substrate 1, wherein a plurality of impact rings 2 are coaxially and concentrically disposed on both sides of the saw blade substrate 1, and the impact rings 2 on both sides correspond to each other and are symmetrically arranged; Each of the impact rings 2 includes a plurality of impact points 3 arranged at equal intervals around the center of the saw blade base 1, and the impact points 3 of the corresponding impact rings 2 on both sides correspond to each other and are arranged symmetrically.

[0017] The impact rings 2 are all coaxially and concentrically arranged at the waist of the saw blade base 1, that is, within the range of one-third to two-thirds of the radius of the saw blade base 1, to ensure rigidity.

[0018] The impact ring 2 is at least one to ensure the surface strengthening effect.

[0019] The impact ring 2 at least includes an intermediate ring, and the diameter d of the intermediate ring satisfies the following formula: d=D*0.65; Wherein d is the diameter of the middle ring, and D is the diameter of the saw blade base 1, which ensures the surface strengthening effect.

[0020] like Figure 2 As shown, the impact point 3 located on the same impact ring 2 satisfies the following formula: α=360 / N; α is the central angle between adjacent impact points 3 of the same impact ring 2, and N is the number of impact points; The value range of N at least satisfies that adjacent impact points 3 do not overlap, thereby ensuring the surface strengthening effect.

[0021] like Figure 3 As shown, as a preferred embodiment 2, the impact points 3 of the same impact ring 2 are all arranged radially or along the chord of the vertical radius or alternately arranged radially and along the chord of the vertical radius. The three methods can be selected according to the actual situation and product design, and the shape of the punch impact mark can be confirmed by the shape of the high-strength impact head according to the actual situation.

[0022] Preferably, the impact mark in this embodiment is round-end shaped.

[0023] As a preferred embodiment 3, a method for preparing a surface-reinforced saw blade substrate, the method for preparing the surface-reinforced saw blade substrate comprises the following steps: S1: Cutting the required rough shape from the steel plate raw material; S2: Heat treatment, which changes the internal structure of the steel through quenching, tempering and cooling processes to achieve appropriate hardness and strength; S3: post-processing, processing the saw blade base 1 into finished size; S4: Surface strengthening to improve the rigidity of saw blade base 1.

[0024] S1 includes laser cutting, drilling and hot deburring; S2 includes quenching, re-clamping, tempering and rough grinding; S3 includes laser cutting, rigidity adjustment, two-time clamping, two-time, semi-fine grinding, semi-fine calibration, two-time calibration, fine turning and fine grinding; The S4 also includes fine calibration, sand drilling, final inspection and warehousing.

[0025] like Figure 4 As shown, as a preferred embodiment 4, the S4 also includes the following steps: fixing the saw blade base 1 on the rotating shaft of the impact surface hardening machine, controlling the saw blade base 1 to move to the initial position, and the high-strength impact heads on both sides of the saw blade base 1 coaxially impact the two sides of the saw blade base 1 at the same time, so that the surface of the saw blade base 1 produces plastic deformation to form completely symmetrical impact marks. After the impact is completed, a group of symmetrical impact points 3 are formed, and then the saw blade base 1 is rotated by a certain angle α and impacted again until all N impact points 3 of the same impact ring 2 are impacted.

[0026] As a preferred embodiment 5, the S4 also reports the following steps: first find the middle ring of the impact ring 2, impact all the impact points 3 of the middle ring, and then impact the impact rings 2 on both sides of the middle ring to ensure the surface strengthening effect, which is beneficial to the stability of the saw blade base 1 during the impact of other impact rings 2.

[0027] As a preferred embodiment 6, a cutting comparison test was conducted using a 2.0 mm 19-blade set of surface-reinforced saw blades and a 2.5 mm 19-blade set of non-surface-reinforced saw blades. The test conditions and results are shown in Table 1:

[0028] Table 1 According to the test in Table 1, it can be obtained that when the surface-strengthened saw blade of the 2.0mm 19-blade group is compared with the non-surface-strengthened saw blade of the 2.5mm 19-blade group, when cutting the same cutting object of the same specification at the same spindle speed, the same thickness of the plate can be cut with a lower current, a lower cut amount, a lower blade specification and a saw blade width, and the output of the plate is even higher. Therefore, even in the case of thinner, the saw blade substrate surface-strengthened as in Example 4 has better rigidity. The saw blade substrate 1 after surface strengthening maintains better rigidity during the cutting process and can cut more plates with high quality under low current conditions.

Claims

1. A surface-strengthened saw blade substrate, comprising a saw blade substrate (1), characterized in that: A plurality of impact rings (2) are coaxially and concentrically provided on both sides of the saw blade base (1), and the impact rings (2) on both sides correspond to each other and are symmetrically arranged; Each of the impact rings (2) comprises a plurality of impact points (3) arranged at equal intervals around the center of the saw blade base (1), and the impact points (3) of the corresponding impact rings (2) on both sides correspond to each other and are arranged symmetrically.

2. The surface-strengthened saw blade substrate according to claim 1, characterized in that: The impact rings (2) are all coaxially arranged at the waist of the saw blade base (1), that is, within the range of one-third to two-thirds of the radius of the saw blade base (1).

3. The surface-strengthened saw blade substrate according to claim 2, characterized in that: The impact ring (2) is at least one.

4. The surface-strengthened saw blade substrate according to claim 3, characterized in that: The impact ring (2) comprises at least an intermediate ring, and the diameter d of the intermediate ring satisfies the following formula: d=D*0.65; Wherein d is the diameter of the intermediate ring, and D is the diameter of the saw blade base (1).

5. The surface-strengthened saw blade substrate according to claim 4, characterized in that: The impact point (3) located on the same impact ring (2) satisfies the following formula: α=360 / N； α is the central angle between adjacent impact points (3) of the same impact ring (2), and N is the number of impact points; The value range of N at least satisfies that adjacent impact points (3) do not overlap.

6. The surface-strengthened saw blade substrate according to claim 5, characterized in that: The impact points (3) of the same impact ring (2) are all arranged along the radial direction, or along the chord perpendicular to the radius, or are arranged alternately along the radial direction and along the chord perpendicular to the radius.

7. A method for preparing a surface-strengthened saw blade substrate, characterized in that: A method for preparing a surface-strengthened saw blade substrate as described in any one of claims 1 to 6, comprising the following steps; S1: Cutting the required rough shape from the steel plate raw material; S2: Heat treatment, which changes the internal structure of the steel through quenching, tempering and cooling processes to achieve appropriate hardness and strength; S3: post-processing, processing the saw blade base (1) into finished size; S4: Surface strengthening to increase the rigidity of the saw blade base (1).

8. The method for preparing a surface-strengthened saw blade substrate according to claim 7, characterized in that: The S4 further comprises the following steps: fixing the saw blade base (1) on the rotating shaft of the impact surface hardening machine, controlling the saw blade base (1) to move to the initial position, and simultaneously coaxially impacting the two sides of the saw blade base (1) with high-strength impact heads on both sides of the saw blade base (1), so that the surface of the saw blade base (1) is plastically deformed to form completely symmetrical impact marks, and a group of symmetrical impact points (3) are formed after the impact is completed, and then the saw blade base (1) is rotated by a certain angle α and impacted again until all N impact points (3) of the same impact ring (2) are impacted.

9. The method for preparing a surface-strengthened saw blade substrate according to claim 8, characterized in that: The S4 also reports the following steps: first find the middle ring of the impact ring (2), impact all the impact points (3) of the middle ring, and then impact the impact rings (2) on both sides of the middle ring.

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