Blade clamping method for cutting tool coating

By stacking multiple blades together and coating only the cutting edge, the problems of uneven coating and dulling of the cutting edge of the cutting tool are solved, thus achieving uniform coating and improved tool performance.

CN121653598APending Publication Date: 2026-03-13YANGJIANG SHENGDA IND & TRADE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-15
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing cutting tool coatings suffer from problems such as uneven coating, dust defects, and dulling of the cutting edge, which affect service life and cutting performance.

Method used

By stacking multiple blades together and coating only the cutting edge, and fixing them with specific fixtures and fasteners, the cutting edge is ensured to face outward, thus achieving uniform coating and improving cutting edge performance.

Benefits of technology

It improves the uniformity of the coating, reduces waste of coating materials, enhances the cutting performance and production efficiency of the cutting tools, and ensures the quality of the cutting tools.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a cutting tool coating blade clamping method which comprises the following steps: S1, oppositely placing a right clamp plate and a left clamp plate, placing a height base plate on the lower end surface of the left clamp plate, arranging one end of an inclination base plate on the height base plate, and arranging the other end of the inclination base plate on the lower end surface, far away from the height base plate, of the right clamp plate; s2, all the blades are placed on the inclination base plate and stacked together in groups to form a step-shaped stack, and the blade faces needing to be coated face outwards; and S3, the right clamp plate and the left clamp plate are fixedly clamped through a fastener, the whole stack of blades are aligned to the same position through a position baffle, and a whole bundle of blades is formed. According to the invention, a plurality of blades are stacked together and only the cutting edge is plated.
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Description

Technical Field

[0001] This invention relates to a method for clamping coated cutting blades. Background Technology

[0002] Because current cutting tool coatings are mostly applied using single-dip plating, the entire surface is coated. This can easily lead to defects such as dust spots, uneven coating, and peeling on non-functional surfaces.

[0003] First, uneven coating thickness can lead to uneven wear on the cutting tool during use, affecting its lifespan and cutting performance. Second, to ensure adhesion between the carbon film layer and the tool substrate, a sufficiently thick metal carbide layer is usually applied to the tool substrate surface as a transition layer. However, this can dull the cutting edge, contradicting the original intention of applying a hard coating to improve edge sharpness.

[0004] Therefore, a method for clamping coated cutting blades is provided. Summary of the Invention

[0005] To address the aforementioned problems in the prior art, this invention provides a method for coating and clamping cutting blades, which enables multiple blades to be stacked together and only the cutting edge to be coated.

[0006] The technical solution to achieve the above objectives is: A method for clamping coated cutting blades includes: Step S1: Place the right clamp plate and the left clamp plate opposite each other, place the height pad on the lower end surface of the left clamp plate, and place one end of the slope pad on the height pad and the other end on the lower end surface of the right clamp plate away from the height pad. Step S2: Place each blade on the inclined pad and stack them together in a stepped stack, with the blade side to be coated facing outwards. Step S3: Secure the right clamp plate and the left clamp plate with fasteners, and align the entire stack of blades to the same position using the position baffle to form a complete bundle of blades.

[0007] Preferably, in step S1, the right clamp plate and the left clamp plate are L-shaped and have reserved wire-threading holes for inserting steel wires or other fastening parts into the wire-threading holes to bind the blade to the right clamp plate and the left clamp plate as a whole.

[0008] Preferably, in step S1, the height pad and the slope pad are used to adjust the height and slope of the clamp to obtain the optimal height difference between adjacent blades.

[0009] Preferably, in step S3, the fastener consists of a fastening screw and a nut, and the fastening screw passes through the right clamp plate and the left clamp plate in sequence and is fastened by the nut.

[0010] Preferably, in step S3, the position baffle is disposed on one end face of the right clamp plate and the left clamp plate.

[0011] Preferably, in step S1, an inclined plate and a horizontal plate are added; The right clamp plate and the left clamp plate are placed opposite each other, and the horizontal pad is placed on the lower end face of the right clamp plate and the left clamp plate; Place the height pad in the middle of the horizontal pad, parallel to the right clamp plate and the left clamp plate; One end of each of the two inclined pads is placed on the height pad, and the other end of each of the two inclined pads is placed on the lower end surface of the horizontal pad, which is close to the right clamp plate and the left clamp plate, respectively. In step S2, each blade is placed on two inclined pads and stacked one by one in two directions toward the middle, so that the middle of the bundle of blades is the highest point and the blade side to be coated faces outward.

[0012] Preferably, in step S2, a thick shim is added between each blade to increase the distance between the blades, with the side to be coated facing outwards.

[0013] Preferably, in step S1, the height pad and the slope pad are removed. Place the right clamp plate and the left clamp plate opposite each other, and place the horizontal pad on the lower end face of the right clamp plate and the left clamp plate; In step S2, each blade is placed on the horizontal pad, and the thickness shims are added between each blade to increase the distance between the blades, with the side to be coated facing outwards.

[0014] Preferably, in step S2, the blade surfaces that do not require coating are bonded together in pairs, and the blade surfaces that require coating are separated by increasing the thickness of the spacers to increase the distance between the blades, with the coated surfaces facing outwards.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, since the cutting part of the cutting tool is the cutting edge, improving the cutting performance of the tool only requires improving the performance of the cutting edge. Therefore, the present invention mainly focuses on the coating of the cutting edge, and designs various stacking arrangements of blades and fixture design schemes, so as to realize that multiple blades are stacked together and only the cutting edge is coated. This not only improves production efficiency and reduces the waste of coating materials, but also ensures the uniformity of the coating and the quality of the tool. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a flowchart of a cutting tool coating and clamping blade method according to the present invention; Figure 2 This is a schematic diagram of the cutting tool coating clamping tool in Embodiment 1 of the present invention; Figure 3 This is a right schematic diagram of the cutting tool coating clamping tool in Embodiment 1 of the present invention; Figure 4 This is a left schematic diagram of the cutting tool coating clamping tool in Embodiment 1 of the present invention; Figure 5 These are left and right schematic diagrams of the coated blade clamping device for the cutting tool in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the coating and clamping blade of the cutting tool in Embodiment 2 of the present invention; Figure 7 This is a left and right schematic diagram of the cutting tool with coated clamping blade in Embodiment 3 of the present invention, based on Embodiment 1; Figure 8 This is a schematic diagram of the cutting tool with coated clamping blade in Embodiment 3 of the present invention, based on Embodiment 2; Figure 9 This is a left and right schematic diagram of the cutting tool coating clamping blade in Embodiment 4 of the present invention, based on Embodiments 1 and 3; Figure 10 This is a schematic diagram of the cutting tool with coated clamping blade in Embodiment 4 of the present invention, based on Embodiments 2 and 3; Figure 11 This is a schematic diagram of the cutting tool with coated clamping blade in Embodiment 5 of the present invention, based on Embodiment 4. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1 like Figure 1-5 As shown, a method for clamping coated cutting blades includes: Step S1: Place the right clamp plate 2 and the left clamp plate 3 opposite each other, and place the height pad 4 on the lower end surface of the left clamp plate 3. Place one end of the slope pad 5 on the height pad 4 and the other end on the lower end surface of the right clamp plate 2 away from the height pad 4.

[0019] In the embodiment, the right clamp plate 2 and the left clamp plate 3 are L-shaped and have reserved wire-threading holes for inserting steel wires or other fastening parts into the wire-threading holes to bind the blade 1 to the right clamp plate 2 and the left clamp plate 3 as a whole. The distance between the right clamp plate 2 and the left clamp plate 3 can be adjusted according to the thickness of the bundled blade 1.

[0020] In this embodiment, the height pad 4 and the slope pad 5 are used to adjust the height and slope of the fixture to obtain the optimal height difference between adjacent blades 1.

[0021] Step S2: Place each blade 1 on the inclined pad 5 and stack them together to form a stepped stack, with the blade side that needs to be coated facing outwards, so as to ensure that the coating on the blade side of each blade 1 is consistent.

[0022] In step S3, the right clamp plate 2 and the left clamp plate 3 are fixedly clamped by the fastener 6, and the position baffle 7 aligns the entire stack of blades 1 to the same position to form a complete bundle of blades 1.

[0023] In this embodiment, the fastener 6 consists of a fastening screw and a nut. The fastening screw passes through the right clamp plate 2 and the left clamp plate 3 in sequence and is fastened by the nut, which can effectively prevent the blade from falling off during the coating process.

[0024] In this embodiment, the position baffle 7 is set on one end face of the right clamping plate 2 and the left clamping plate 3 to avoid inconsistent coating on the cutting edge due to improper clamping.

[0025] In this embodiment, the shape, width, length, and thickness of the right clamping plate 2 and the left clamping plate 3 can be adjusted accordingly based on the different blade surface shapes, widths, lengths, and thicknesses of the blade 1, as well as the height pad 4 and the slope pad 5.

[0026] Example 2 like Figure 6 As shown, based on Example 1, an inclined pad 5 and a horizontal pad 8 are added; Place the right clamp plate 2 and the left clamp plate 3 opposite each other, and place the horizontal pad 8 on the lower end surface of the right clamp plate 2 and the left clamp plate 3; place the height pad 4 in the middle position of the horizontal pad 8, and parallel to the right clamp plate 2 and the left clamp plate 3; place one end of the two inclined pads 5 on the height pad 4, and place the other end of the two inclined pads 5 on the lower end surface of the horizontal pad 8, which is close to the right clamp plate 2 and the left clamp plate 3 respectively. Place each blade 1 on two inclined pads 5, and stack them one by one in two directions towards the middle, so that the middle of the bundle of blades 1 is the highest point, with the blade side that needs to be coated facing outwards. The right clamp plate 2 and the left clamp plate 3 are fixedly clamped by the fastener 6, and the position baffle 7 aligns the entire stack of blades 1 to the same position to form a complete bundle of blades 1.

[0027] Example 3 like Figure 7 , 8 As shown, based on the above embodiments 1 and 2, a thick shim 9 is added between each blade 1 to make the coating on the blade surface consistent and to increase the distance between the blades 1. The side that needs to be coated faces outward. This method is also applicable to knives that need to be coated on both sides of the blade surface. The right clamp plate 2 and the left clamp plate 3 are fixedly clamped by the fastener 6, and the position baffle 7 aligns the entire stack of blades 1 to the same position to form a complete bundle of blades 1.

[0028] Example 4 like Figure 9 , 10 As shown, based on Example 3, in order to reduce the total height of the bundled blades after clamping and increase the furnace loading, the height pad 4 and the slope pad 5 are removed. Place the right clamp plate 2 and the left clamp plate 3 opposite each other, and place the horizontal pad 8 on the lower end face of the right clamp plate 2 and the left clamp plate 3; Place each blade 1 on a horizontal pad 8, and add a thick shim 9 between each blade 1 to increase the distance between the blades 1, with the side to be coated facing outwards; The right clamp plate 2 and the left clamp plate 3 are fixedly clamped by the fastener 6, and the position baffle 7 aligns the entire stack of blades 1 to the same position to form a complete bundle of blades 1.

[0029] Example 5 like Figure 11 As shown, based on Example 4, the blades that do not need coating are bonded together in pairs, and the blades that need coating are separated by increasing the thickness of the shims 9 to increase the distance between the blades 1, thereby further increasing the furnace load. The blades that need coating face outwards. This method is also applicable to blades that need coating on both sides of the cutting edge. The right clamp plate 2 and the left clamp plate 3 are fixedly clamped by the fastener 6, and the position baffle 7 aligns the entire stack of blades 1 to the same position to form a complete bundle of blades 1.

[0030] Another embodiment By using different clamps to hold the blades, the blade stacking configurations of Examples 1-5 above can also be achieved.

[0031] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for clamping coated cutting blades, characterized in that, include: Step S1: Place the right clamp plate (2) and the left clamp plate (3) opposite each other, and place the height pad (4) on the lower end surface of the left clamp plate (3). Place one end of the slope pad (5) on the height pad (4) and the other end on the lower end surface of the right clamp plate (2) away from the height pad (4). Step S2: Place each blade (1) on the inclined pad (5) and stack them together to form a stepped stack, with the blade side to be coated facing outwards; Step S3: Secure the right clamp plate (2) and the left clamp plate (3) with fasteners (6), and align the stack of blades (1) with the position baffle (7) to the same position to form a bundle of blades (1).

2. The method for clamping coated cutting blades according to claim 1, characterized in that, In step S1, the right clamp plate (2) and the left clamp plate (3) are L-shaped and have reserved wire-threading holes for inserting steel wires or other fastening parts into the wire-threading holes to bind the blade (1) to the right clamp plate (2) and the left clamp plate (3) as a whole.

3. The method for clamping coated cutting blades according to claim 1, characterized in that, In step S1, the height pad (4) and the slope pad (5) are used to adjust the height and slope of the fixture to obtain the optimal height difference between adjacent blades (1).

4. The method for clamping coated cutting blades according to claim 1, characterized in that, In step S3, the fastener (6) consists of a fastening screw and a nut. The fastening screw passes through the right clamp plate (2) and the left clamp plate (3) in sequence and is fastened by the nut.

5. The method for clamping coated cutting blades according to claim 1, characterized in that, In step S3, the position baffle (7) is disposed on one end face of the right clamp plate (2) and the left clamp plate (3).

6. The method for clamping coated cutting blades according to claim 1, characterized in that, In step S1, an inclined plate (5) and a horizontal plate (8) are added. Place the right clamp plate (2) and the left clamp plate (3) opposite each other, and place the horizontal pad (8) on the lower end face of the right clamp plate (2) and the left clamp plate (3); Place the height pad (4) in the middle of the horizontal pad (8) and parallel to the right clamp plate (2) and the left clamp plate (3); One end of the two inclined pads (5) is placed on the height pad (4), and the other end of the two inclined pads (5) is placed on the lower end surface of the horizontal pad (8) near the right clamp plate (2) and the left clamp plate (3), respectively. In step S2, each blade (1) is placed on two inclined pads (5) and stacked one by one in two directions toward the middle, so that the middle of the bundle of blades (1) is the highest point and the blade side that needs to be coated faces outward.

7. The method for clamping coated cutting blades according to claim 6, characterized in that, In step S2, a thick shim (9) is added between each blade (1) to increase the distance between the blades (1) so that the side to be coated faces outward.

8. The method for clamping coated cutting blades according to claim 7, characterized in that, In step S1, the height pad (4) and the slope pad (5) are removed. Place the right clamp plate (2) and the left clamp plate (3) opposite each other, and place the horizontal pad (8) on the lower end face of the right clamp plate (2) and the left clamp plate (3); In step S2, each blade (1) is placed on the horizontal pad (8), and the thickness pad (9) is added between each blade (1) to increase the distance between the blades (1) so that the side to be coated faces outward.

9. A method for clamping coated cutting blades according to claim 8, characterized in that, In step S2, the blade surfaces that do not require coating are attached to each other in pairs, and the blade surfaces that require coating are separated by increasing the thickness shims (9) to increase the distance between the blades (1), with the surfaces that require coating facing outwards.