A cutter wheel with auxiliary teeth

Abstract

The present application discloses a cutter wheel with auxiliary teeth, including a disc surface symmetrically arranged on both sides and an axial hole for installing a cutter shaft; the disc surfaces on both sides extend and intersect along the outer edge toward the longitudinal center section of the cutter wheel to form a symmetrical cutting edge surface, and a plurality of main cutting teeth are evenly spaced on the cutting edge surface; a tooth groove is arranged between two adjacent main cutting teeth; a plurality of auxiliary teeth are arranged in the tooth groove; by arranging auxiliary teeth of preset size between the main cutting teeth, on the one hand, the cutting pressure of the main cutting teeth is shared, and the service life of the cutter wheel is increased; on the other hand, the setting of the auxiliary teeth avoids the generation of cutting line protrusions and wavy lines, improves the cutting quality and quality, and can still avoid the phenomenon of overlapping cutting tooth marks under greater pressure. In addition, the present application can set auxiliary teeth of corresponding structures in a targeted manner according to different processing requirements of the cutter wheel, so as to meet various processing requirements and has high applicability.

Description

Technical Field

[0001] The invention relates to the technical field of material cutting, in particular to a cutter wheel with auxiliary teeth. Background Art

[0002] The wheel is an ultra-precision diamond tool used to cut brittle materials. It cuts ultra-precision slots of a certain size on the surface of brittle materials such as glass, and then gradually causes deeper vertical fractures to cut out different sizes and shapes.

[0003] When cutting the material to be processed (such as glass), the cutter wheel first contacts the surface of the material to be processed. At this time, a certain external pressure is applied to the cutter wheel. Under the traction of the cutter seat, the cutter wheel will produce a continuous cutting line on the surface of the material to be processed along the preset cutting direction. Due to the action of external force, vertical cracks and horizontal cracks will be generated on the cut surface of the material to be processed. The vertical cracks will expand in a direction perpendicular to the surface of the material to be processed, so that the material to be processed is separated.

[0004] The cutting line is formed by the cutting teeth on the cutter wheel penetrating into the material being processed, so the shape of the cutting teeth determines the shape of the cutting line and the flatness of the cutting surface. During the processing of the existing cutter wheel, the cutting marks produced by adjacent cutting teeth on the material being processed are often easily piled up on each other, which not only makes the cutting line bulge, makes the cutting pressure not evenly released, and affects the formation of horizontal cracks; it also causes wavy lines in the vertical direction of the cut section, seriously affecting the cutting quality. Summary of the invention

[0005] The purpose of the present invention is to propose a cutter wheel with auxiliary teeth to solve the problem that ripples are easily generated in the existing cutting process, resulting in poor cutting quality, and the cutter wheel provided by the application solves the problem of how to reduce the wear of the main teeth.

[0006] The present application provides a cutter wheel with auxiliary teeth, comprising a disc surface symmetrically arranged on both sides and an axial hole for installing a cutter shaft; the disc surfaces on both sides extend and intersect along the outer edges toward the longitudinal center section of the cutter wheel to form a symmetrical cutting edge surface, and a plurality of main cutting teeth are evenly spaced on the cutting edge surface; a tooth groove is arranged between two adjacent main cutting teeth; and a plurality of auxiliary teeth are arranged in the tooth groove;

[0007] Optionally, the tooth depth of the auxiliary teeth is 60%-80% of the tooth depth of the main cutting teeth; the tooth width of the auxiliary teeth is 20%-40% of the tooth width of the main cutting teeth.

[0008] Optionally, the auxiliary teeth are evenly arranged along the circumference of the cutting edge surface, and divide the tooth groove into a plurality of micro grooves of the same width.

[0009] Optionally, the number of the auxiliary teeth is 2N, where N is an integer not less than 1; and the tooth depths of all the auxiliary teeth are the same.

[0010] Optionally, the number of the auxiliary teeth is 2N-1, where N is an integer not less than 1; wherein the tooth depth of each auxiliary tooth gradually increases from the auxiliary tooth located at the center to the auxiliary teeth on both sides.

[0011] Optionally, the tooth shape of the auxiliary teeth is consistent with that of the main cutting teeth.

[0012] Optionally, the micro groove is a U-shaped, V-shaped or T-shaped groove.

[0013] Optionally, the cutting edge angle of the cutting edge surface ranges from 100° to 160°.

[0014] The present application discloses a cutter wheel with auxiliary teeth, including a disc surface symmetrically arranged on both sides and an axial hole for installing a cutter shaft; the disc surfaces on both sides extend and intersect along the outer edge toward the longitudinal center section of the cutter wheel to form a symmetrical cutting edge surface, and a plurality of main cutting teeth are evenly spaced on the cutting edge surface; a tooth groove is arranged between two adjacent main cutting teeth; a plurality of auxiliary teeth are arranged in the tooth groove; by arranging auxiliary teeth of preset size between the main cutting teeth, on the one hand, the cutting pressure of the main cutting teeth is shared, and the service life of the cutter wheel is increased; on the other hand, the setting of the auxiliary teeth avoids the generation of cutting line protrusions and wavy lines, improves the cutting quality and quality, and can still avoid the phenomenon of overlapping cutting tooth marks under greater pressure. In addition, the present application can set auxiliary teeth of corresponding structures in a targeted manner according to different processing requirements of the cutter wheel, so as to meet various processing requirements and has high applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 This is a schematic structural diagram of a cutter wheel with auxiliary teeth in this application;

[0017] Figure 2 A diagram showing the arrangement of auxiliary teeth in one embodiment;

[0018] Figure 3 A diagram showing the arrangement of auxiliary teeth in another embodiment;

[0019] Figure 4 This is a side view of a cutter wheel with auxiliary teeth according to the present application.

[0020] Among them, 1-disk surface, 2-cutting edge surface, 21-main cutting tooth, 22-tooth groove, 221-micro groove, 23-auxiliary tooth, 3-axis hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0022] See also Figure 1 , is a schematic structural diagram of a cutter wheel with auxiliary teeth in the present application;

[0023] Depend on Figure 1 It can be seen that the embodiment of the present application provides a cutter wheel with auxiliary teeth, including: a disk surface 1 symmetrically arranged on both sides and an axial hole 3 for installing a cutter shaft. In this embodiment, the material constituting the disk surface 1 is not limited, and it should be considered to be applicable to any cutter wheel material. The axial hole 3 is usually a structure with a PCD layer, which provides higher structural strength and shock resistance; the disk surfaces 1 on both sides extend along the outer edge toward the longitudinal center section of the cutter wheel and intersect with each other to form a symmetrical cutting edge surface 2. The cutting edge surface 2 is usually set to a V-shaped structure or a V-shaped structure, and according to different processing scenarios, the top shape of the V-shaped structure, that is, the cutting edge angle formed, needs to be adaptively set. For example, it can be preferably set to a cutting edge angle range of 100°-160°. The smaller the cutting edge angle, the easier it is to form a smaller cutting line, and the larger the cutting edge angle, the easier it is to maintain the stability of the cutter wheel processing. A plurality of main cutting teeth 21 are evenly spaced on the cutting edge surface 2. The main cutting teeth 21 are located at the tip of the cutting edge surface 2 and are used to provide cutting action. The shape of the main cutting teeth 21 determines the size of the cutting surface after cutting. A tooth groove 22 is provided between two adjacent main cutting teeth 21. The tooth groove 22 is used to discharge fine chips generated during processing during movement.

[0024] In this embodiment, a plurality of auxiliary teeth 23 are also provided in the tooth groove 22. The tooth depth and tooth width of the auxiliary teeth 23 are smaller than the main cutting teeth 21. The main function of the auxiliary teeth 23 is as follows: during the cutting process, as the main cutting teeth 21 continue to penetrate into the processed material, the reaction force (cutting pressure) of the processed material on the main cutting teeth 21 will continue to increase. When the cutting depth of the main cutting teeth 21 reaches a certain depth of the processed material, the large cutting pressure may cause great wear to the main cutting teeth 21. Over a long period of time, the main cutting teeth 21 will fail prematurely, seriously affecting the service life of the cutter wheel. By using the auxiliary teeth 23, when the cutting depth is deep, the auxiliary teeth can perform a pre-cutting first, and then the main cutting teeth 21 will contact the processed material, which greatly reduces the cutting pressure of the main cutting teeth 21 and reduces wear. Therefore, the auxiliary teeth 23 not only share the cutting pressure of the main cutting teeth 21, but also increase the pressure range of the cutter wheel.

[0025] Furthermore, the selection of the specifications of the auxiliary teeth 23 should take into account the processing effect. If the tooth depth is too large, it is not only not conducive to chip removal, but also fails to play the role of auxiliary cutting; if the tooth depth is too small, it is not easy to contact the processed material, and the auxiliary cutting effect is also weak; similarly, if the tooth width of the auxiliary teeth 23 is large, it is easy to cause bulges during cutting, and a small tooth width may affect the separation of the processed material. Therefore, in order to obtain a better processing effect, in a better embodiment, the tooth depth of the auxiliary teeth 23 is usually selected to be 60%-80% of the tooth depth of the main cutting teeth 21, preferably 70%; the tooth width of the auxiliary teeth 23 is 20%-40% of the tooth width of the main cutting teeth 21, preferably 30%.

[0026] In this embodiment, the number of auxiliary teeth 23 provided inside the tooth groove 22 depends on the situation. However, no matter how many are provided, the auxiliary teeth 23 need to be evenly arranged along the circumference of the cutting edge surface 2. This is not only conducive to processing, but also makes the auxiliary processing effect more obvious. At this time, the plurality of auxiliary teeth 23 divide the tooth groove 22 into a plurality of micro grooves 221 of the same width, that is, each micro groove 221 is responsible for discharging fine chips generated by adjacent auxiliary teeth 23.

[0027] Furthermore, when the distance between two adjacent main cutting teeth 21 is constant, the more auxiliary teeth 23 are arranged in the middle tooth groove 22, the more micro grooves 221 are divided, that is, the auxiliary teeth 23 are closer together. Of course, the closer the auxiliary teeth 23 are, the better the auxiliary cutting effect is. Therefore, the number of auxiliary teeth should be set accordingly according to actual needs. Usually, there are two cases: even number of auxiliary teeth (2N) and odd number of auxiliary teeth (2N-1). Figure 2 and Figure 3 The above two situations are explained separately:

[0028] Depend on Figure 2 It can be seen that when the number of the auxiliary teeth 23 is 2N, and N is an integer not less than 1, the number at this time can be 2 / 4 / 6 / 8... For example, there are two auxiliary teeth in the figure, and the tooth groove is divided into three micro grooves by the auxiliary teeth. The tooth depth of all auxiliary teeth 23 is set to the same value, which can keep the tooth shape stable during the auxiliary tooth processing, which is conducive to forming a processing interface suitable for the main cutting tooth processing.

[0029] Depend on Figure 3 It can be seen that when the number of the auxiliary teeth 23 is 2N-1, and N is an integer not less than 1, the number at this time can be 1 / 3 / 5 / 7... For example, there are three auxiliary teeth in the figure, and the tooth groove is divided into four micro grooves by the auxiliary teeth at this time; among them, because one of the auxiliary teeth is located in the center position, and this position is at the same distance from the main cutting teeth on both sides, the tooth depth of each auxiliary tooth 23 is gradually increased from the auxiliary tooth 23 located in the center to the auxiliary teeth 23 on both sides, so that the auxiliary teeth on both sides can be stepped. During processing, each auxiliary tooth can bear a certain cutting component, which can make the cutting force more uniform and the cutting quality better.

[0030] Furthermore, in this embodiment, since the auxiliary teeth have an auxiliary cutting function for the main cutting teeth, the tooth shape of the auxiliary teeth 23 must be as close or consistent as possible to the main cutting teeth 21. Since the shape of the main cutting teeth 21 can be selected as V-shaped, U-shaped or shuttle-shaped, the shape of the auxiliary teeth should also be consistent with the main cutting teeth 21, and only the size can be reduced in equal proportion or partially in equal proportion. The consistency of the tooth shape can ensure the flatness of the cutting line and the cutting section.

[0031] Furthermore, the shape of the micro groove 221 in this embodiment can have various structural forms, for example Figure 2 The V-shaped structure shown, Figure 3 The U-shaped structure shown may also be a slot structure of other shapes, such as a T-shaped slot, etc., which is not limited here.

[0032] Depend on Figure 4 It can be seen that the solution provided in this application is mainly suitable for cutter wheels with a diameter D range of 2.0mm-4.0mm, a PCD layer inner hole diameter d range of 0.8mm-1.2mm, and a cutter wheel thickness T of 0.65mm-1.0mm. For cutter wheels of other sizes, the solution provided in this application can also be applied with slight modifications to achieve the processing purpose.

[0033] It can be seen from the above technical scheme that the present application provides a cutter wheel with auxiliary teeth, including a disc surface symmetrically arranged on both sides and an axial hole for installing a cutter shaft; the disc surfaces on both sides extend and intersect along the outer edge toward the longitudinal center section of the cutter wheel to form a symmetrical cutting edge surface, and a plurality of main cutting teeth are evenly spaced on the cutting edge surface; a tooth groove is provided between two adjacent main cutting teeth; a plurality of auxiliary teeth are provided in the tooth groove; by providing auxiliary teeth of preset size between the main cutting teeth, on the one hand, the cutting pressure of the main cutting teeth is shared, and the service life of the cutter wheel is increased; on the other hand, the provision of auxiliary teeth avoids the generation of cutting line protrusions and wavy lines, improves the cutting quality and quality, and can still avoid the phenomenon of overlapping cutting tooth marks under greater pressure. In addition, the present application can specifically provide auxiliary teeth of corresponding structures according to different processing requirements of the cutter wheel, so as to meet various processing needs and has high applicability.

[0034] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0035] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A cutter wheel with auxiliary teeth, comprising a disc surface (1) symmetrically arranged on both sides and an axial hole (3) for installing a cutter shaft; the disc surfaces (1) on both sides extend and intersect along the outer edges toward the longitudinal center section of the cutter wheel to form a symmetrical cutting edge surface (2), and a plurality of main cutting teeth (21) are evenly spaced on the cutting edge surface (2); a tooth groove (22) is provided between two adjacent main cutting teeth (21); characterized in that: A plurality of auxiliary teeth (23) are provided in the tooth groove (22); The auxiliary teeth (23) are evenly arranged along the circumference of the cutting edge surface (2), and divide the tooth groove (22) into a plurality of micro grooves (221) of the same width.

2. A cutter wheel with auxiliary teeth according to claim 1, characterized in that: The tooth depth of the auxiliary teeth (23) is 60%-80% of the tooth depth of the main cutting teeth (21); and the tooth width of the auxiliary teeth (23) is 20%-40% of the tooth width of the main cutting teeth (21).

3. The cutter wheel with auxiliary teeth according to claim 1, characterized in that: The number of the auxiliary teeth (23) is 2N, where N is an integer not less than 1; and the tooth depths of all the auxiliary teeth (23) are the same.

4. The cutter wheel with auxiliary teeth according to claim 1, characterized in that: The number of the auxiliary teeth (23) is 2N-1, where N is an integer not less than 1; wherein the tooth depth of each auxiliary tooth (23) gradually increases from the auxiliary tooth (23) located at the center to the auxiliary teeth (23) on both sides.

5. A cutter wheel with auxiliary teeth according to claim 3 or 4, characterized in that: The tooth shape of the auxiliary teeth (23) is consistent with that of the main cutting teeth (21).

6. A cutter wheel with auxiliary teeth according to claim 5, characterized in that: The micro groove (221) is a U-shaped, V-shaped or T-shaped groove.

7. A cutter wheel with auxiliary teeth according to claim 6, characterized in that: The cutting edge angle of the cutting edge surface (2) is in the range of 100°-160°.

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