Novel superhard cutter

Abstract

The utility model relates to the technical field of numerical control, and discloses a novel superhard cutter which comprises a cutter handle, a cutter head, a threaded sleeve and a rotating shaft, a sliding groove is formed in the position, close to the front end, of the center of the upper end face of the cutter handle, and a limiting assembly is arranged in the sliding groove in a sliding and clamping mode and comprises a limiting column. A spring movably sleeves the outer wall of the limiting column close to the rear end, and a cooling assembly is fixedly arranged on the upper end face of the knife handle close to the front end. According to the numerical control tool bit cooling device, by pulling the limiting handle, the limiting column achieves limiting of the rotating angle of the rotating shaft under the elastic force limiting effect of the spring, meanwhile, the numerical control tool bit is cooled under the effect of the cooling assembly, the purpose of cooling the numerical control tool bit is achieved, the numerical control tool bit can be conveniently kept in a good hardness state, and the service life of the numerical control tool bit is prolonged. And the chromium nitride coating of the wear-resistant layer has high toughness and high corrosion resistance, so that the wear resistance and the rust resistance of the numerical control tool are conveniently improved, and the service life of the numerical control tool is further prolonged.

Description

Technical Field

[0001] The utility model relates to the field of coking production equipment, in particular to a novel superhard knife. Background Art

[0002] CNC cutting tools are tools used for cutting in mechanical manufacturing, also known as cutting tools. In a broad sense, cutting tools include both cutting tools and grinding tools. Furthermore, "CNC cutting tools" include not only cutting blades but also toolholders and tool holders.

[0003] Existing CNC tools will generate a lot of cutting heat during the long-term cutting process of workpieces, which will cause the temperature of the tool to continue to rise, resulting in a decrease in tool hardness and frequent damage to the tool. At the same time, the cutting angle of existing CNC tools is fixed, which means that tools in different directions usually need to be replaced during the processing of the workpiece, and the replacement process is relatively laborious, which greatly reduces the processing efficiency. At the same time, CNC tools will produce a lot of wear after long-term use. The tool head and blade body of most CNC tools are an integrated structure. Once the tool head is damaged, the entire tool completely loses its use value, which is extremely wasteful and increases the cost of production.

[0004] Therefore, the present invention provides a novel superhard knife to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the present utility model is to solve the shortcomings existing in the prior art, and a new type of super-hard tool is proposed. By pulling the limit handle, the limit column is limited by the spring elastic force to limit the rotation angle of the rotating shaft. At the same time, under the action of the cooling component, the CNC cutter head generates a large amount of cutting heat during the long-term cutting process of the workpiece, which is cooled, thereby achieving the purpose of cooling the CNC cutter head. At the same time, the chromium nitride coating of the wear-resistant layer has low stress, high adhesion, high toughness and high corrosion resistance, which is convenient for improving the wear resistance and rust resistance of the CNC tool, thereby extending the service life of the CNC tool. When the motor is started, it drives the rotation of the first bevel gear, and then drives the rotation of the second bevel gear under the rotation of the first bevel gear, thereby realizing the rotation of the rotating shaft and finally realizing the rotation of the cutter head, avoiding the problem of frequently replacing tools in different directions during the processing of the workpiece, and improving the efficiency of cutting the workpiece.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of superhard knife, comprising a knife handle, a knife head, a threaded sleeve and a rotating shaft, a slide groove is provided at the center of the upper end surface of the knife handle near the front end position, a limit assembly is slidably engaged in the slide groove, the limit assembly comprises a limit column, a spring is movably sleeved at the outer wall of the limit column near the rear end position, a cooling assembly is fixedly provided at the upper end surface of the knife handle near the front end position, the cooling assembly comprises a water tank and a sealing cover, a drain pipe is fixedly provided at the center of the bottom end surface of the water tank, a plurality of limit grooves are provided at the center of the outer wall of the rotating shaft, and the limit columns are respectively embedded in one of the limit grooves provided in the plurality of limit grooves;

[0007] The outer wall of the cutter head is fixedly provided with a wear-resistant layer, and the wear-resistant layer is made of a chromium nitride coating. A rotating mechanism is provided at the rear end position of the lower end surface of the inner wall of the handle, and the rotating mechanism includes a motor and a first bevel gear. A connecting column is fixedly provided at the upper end position of the rear end surface of the rotating shaft, and the other end of the connecting column is fixedly connected to the side opposite to the rear end surface of the inner wall of the handle, and a second bevel gear is fixedly sleeved at the center of the outer wall of the connecting column;

[0008] Through the above technical solution, when the limit handle is pulled, the limit column is limited by the spring force to limit the rotation angle of the rotating shaft. At the same time, under the action of the cooling component, the CNC cutter head generates a large amount of cutting heat during the long-term cutting process of the workpiece, which is cooled, thereby achieving the purpose of cooling the CNC cutter head, avoiding the CNC cutter head from being easily reduced in hardness due to heat, maintaining the CNC cutter head in a good hardness state, and preventing the CNC cutter head from being easily damaged. At the same time, the wear-resistant layer is made of chromium nitride coating, and the chromium nitride coating has low stress, high adhesion, high toughness and high corrosion resistance, which is convenient for improving the wear resistance and rust resistance of the CNC tool, thereby extending the service life of the CNC tool. At the same time, when the motor is started, the motor drives the rotation of the first bevel gear, and then drives the rotation of the second bevel gear under the rotation of the first bevel gear, thereby realizing the rotation of the rotating shaft, and finally realizing the rotation of the cutter head, avoiding the problem of frequently replacing tools in different directions during the processing of the workpiece, and improving the efficiency of cutting the workpiece.

[0009] Furthermore, the limiting column is slidably arranged in the slide groove, and a limiting handle is fixedly arranged on the upper end surface of the limiting column;

[0010] Through the above technical solution, when the limit handle is pulled, the limit column is caused to slide and engage in the limit groove under the limiting action of the spring elastic force, thereby achieving the limit fixation of the rotation angle of the rotating shaft.

[0011] Furthermore, the two ends of the spring are fixedly connected to the outer wall of the limiting column at the front and rear ends respectively, and the spring is movably engaged in the sliding groove;

[0012] Through the above technical solution, under the elastic limiting action of the spring, it is convenient for the limiting column to limit and fix the rotation angle of the rotating shaft, thereby achieving the fixation of the cutter head.

[0013] Furthermore, the sealing cover is fixedly provided on the upper end surface of the water tank, and a fixed handle is fixedly provided on the upper end surface of the sealing cover;

[0014] Through the above technical solution, the design of the sealing cover facilitates the preservation of the water quality inside the water tank, preventing processed impurities from entering the interior and affecting the processing accuracy of the CNC tool.

[0015] Furthermore, the lower end of the drainage pipe passes through the knife handle, the rotating shaft is rotatably arranged at the front end position of the knife handle, and the threaded sleeve is fixedly arranged on the rear end surface of the knife head;

[0016] Through the above technical solution, the design of the rotating shaft facilitates enhancing the stability of the cutter head during rotation, and the design of the threaded sleeve facilitates the installation and disassembly of the cutter head, avoiding damage to the integrated structure of the tool, causing waste of resources and thus increasing production practical costs.

[0017] Furthermore, the motor is fixedly arranged at the rear end of the lower end surface of the inner wall of the handle, and the first bevel gear is fixedly arranged at the output end of the motor;

[0018] With the above technical solution, by starting the motor, the first bevel gear is rotated under the action of the motor, thereby facilitating the rotation of the entire cutter head.

[0019] Furthermore, the cutter head is threadedly connected to the rotating shaft via a threaded sleeve, and the second bevel gear is meshed with the first bevel gear;

[0020] The above technical solution facilitates the effective installation and disassembly of the cutter head, thereby improving processing efficiency.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model proposes a new type of super-hard tool. By pulling the limit handle, the limit column is limited by the spring force to limit the rotation angle of the rotating shaft. At the same time, under the action of the cooling component, the CNC tool head generates a large amount of cutting heat during the long-term cutting process of the workpiece, which is cooled down, thereby achieving the purpose of cooling the CNC tool head, avoiding the CNC tool head from being easily heated and its hardness reduced, maintaining the CNC tool head in a good hardness state, and preventing the CNC tool head from being easily damaged.

[0023] 2. The utility model proposes a new type of superhard tool, and the chromium nitride coating of the wear-resistant layer has low stress, high adhesion, high toughness and high corrosion resistance, which is convenient for improving the wear resistance and rust resistance of the CNC tool, thereby extending the service life of the CNC tool. At the same time, when the motor is started, the motor drives the rotation of the first bevel gear, and then drives the rotation of the second bevel gear under the rotation of the first bevel gear, thereby realizing the rotation of the rotating shaft, and finally realizing the rotation of the cutter head, avoiding the problem of frequently replacing tools in different directions during the processing of the workpiece, and improving the efficiency of cutting the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the overall structure of the rotating shaft of the present utility model;

[0026] Figure 3 This is a schematic diagram of the overall structure of the cutter head of the present utility model;

[0027] Figure 4 It is a schematic diagram of the side sectional structure of the utility model;

[0028] Figure 5 This is an enlarged schematic diagram of the internal structure of point A of the present utility model;

[0029] Figure 6 This is an enlarged schematic diagram of the internal structure of point B of the present invention.

[0030] Legend:

[0031] 1. Tool handle; 2. Tool head; 3. Threaded sleeve; 4. Limit assembly; 5. Slide; 6. Cooling assembly; 7. Rotating shaft; 8. Limit groove; 9. Wear-resistant layer; 10. Rotating mechanism; 401. Limit column; 402. Spring; 403. Limit handle; 601. Water tank; 602. Sealing cover; 603. Fixed handle; 604. Drain pipe; 101. Motor; 102. First bevel gear; 103. Second bevel gear; 104. Connecting column. DETAILED DESCRIPTION

[0032] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0033] Reference Figure 1-6, the utility model provides an embodiment: a new type of superhard knife, including a knife handle 1, a knife head 2, a threaded sleeve 3 and a rotating shaft 7, a slide groove 5 is opened at the center of the upper end surface of the knife handle 1 near the front end position, and a limit component 4 is provided in the slide groove 5 for sliding engagement. The design of the limit component 4 is convenient for realizing the limit fixation of the rotation angle of the rotating shaft 7, the limit component 4 includes a limit column 401, and a spring 402 is movably sleeved at the outer wall of the limit column 401 near the rear end position, and a cooling component 6 is fixed on the upper end surface of the knife handle 1 near the front end position, and the cooling The design of the component 6 facilitates cooling of the CNC tool, avoids the CNC tool head 2 from being easily heated and reducing its hardness, and facilitates maintaining the CNC tool head 2 in a good hardness state. The cooling component 6 includes a water tank 601 and a sealing cover 602. A drain pipe 604 is fixedly provided at the center of the bottom end surface of the water tank 601. A plurality of limiting grooves 8 are provided at the center of the outer wall of the rotating shaft 7. The limiting columns 401 are respectively embedded in one of the limiting grooves 8, thereby facilitating the limiting and fixing of the rotation angle of the rotating shaft 7.

[0034] A wear-resistant layer 9 is fixedly provided on the outer wall of the cutter head 2, and the wear-resistant layer 9 is made of a chromium nitride coating. The design of the wear-resistant layer 9 is convenient for improving the wear resistance and rust resistance of the CNC tool. A rotating mechanism 10 is provided at the rear end position of the lower end face of the inner wall of the tool handle 1. The design of the rotating mechanism 10 is convenient for realizing the rotation of the cutter head 2, avoiding the problem of frequently replacing tools in different orientations during the processing of the workpiece, and improving the efficiency of cutting the workpiece. The rotating mechanism 10 includes a motor 101 and a first bevel gear 102. A connecting column 104 is fixedly provided at the upper end position of the rear end face of the rotating shaft 7. The other end of the connecting column 104 is fixedly connected to the side opposite to the rear end face of the inner wall of the tool handle 1, and a second bevel gear 103 is fixedly sleeved at the center of the outer wall of the connecting column 104.

[0035] The limiting column 401 is slidably arranged in the slide groove 5, and a limiting handle 403 is fixedly provided on the upper end surface of the limiting column 401, and both ends of the spring 402 are fixedly connected to the front and rear end positions of the outer wall of the limiting column 401 respectively, and the spring 402 is movably engaged in the slide groove 5, and the sealing cover 602 is fixedly arranged on the upper end surface of the water tank 601, and a fixed handle 603 is fixedly provided on the upper end surface of the sealing cover 602. The lower end of the drain pipe 604 runs through the knife handle 1, and the rotating shaft 7 is rotatably arranged in the knife handle 1 at the front end position, the threaded sleeve 3 is fixedly arranged on the rear end surface of the cutter head 2, and the motor 101 is fixedly arranged on the rear end position of the lower end surface of the inner wall of the knife handle 1, and the first bevel gear 102 is fixedly arranged at the output end of the motor 101, and the cutter head 2 is threadedly connected to the rotating shaft 7 through the threaded sleeve 3, and the second bevel gear 103 is meshed with the first bevel gear 102;

[0036] When the motor 101 is started, the motor 101 drives the first bevel gear 102 to rotate, and then the second bevel gear 103 is driven to rotate under the rotation of the first bevel gear 102, thereby realizing the rotation of the rotating shaft 7, and finally realizing the rotation of the cutter head 2, avoiding the problem of frequently replacing tools in different orientations during the processing of the workpiece, and improving the efficiency of cutting the workpiece.

[0037] Working principle: First, the operator uses the threaded sleeve 3 on the rear end face of the cutter head 2 to threadably connect with the internal rotating shaft 7 of the tool handle 1 to fix the cutter head 2, and then starts the motor 101, so that the motor 101 drives the rotation of the first bevel gear 102, and then drives the rotation of the second bevel gear 103 under the rotation of the first bevel gear 102, thereby realizing the rotation of the rotating shaft 7, and finally realizing the rotation of the cutter head 2. When the CNC tool generates a large amount of cutting heat during the long-term cutting process of the workpiece, the cooling component 6 cools it down, avoiding the CNC cutter head 2 from being easily reduced in hardness due to heat, making it easier to maintain the CNC cutter head 2 in a good hardness state and prevent the CNC cutter head 2 from being damaged.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel superhard knife, comprising a knife handle (1), a knife head (2), a threaded sleeve (3) and a rotating shaft (7), characterized in that: A slide groove (5) is provided at the center of the upper end face of the knife handle (1) near the front end position, a limit assembly (4) is slidably engaged in the slide groove (5), the limit assembly (4) comprises a limit column (401), a spring (402) is movably sleeved on the outer wall of the limit column (401) near the rear end position, a cooling assembly (6) is fixedly provided at the upper end face of the knife handle (1) near the front end position, the cooling assembly (6) comprises a water tank (601) and a sealing cover (602), a drain pipe (604) is fixedly provided at the center of the bottom end face of the water tank (601), a plurality of limit grooves (8) are provided at the center of the outer wall of the rotating shaft (7), and the limit column (401) is respectively embedded in one of the limit grooves (8) provided in the plurality of limit grooves (8); The outer wall of the cutter head (2) is fixedly provided with a wear-resistant layer (9), and the wear-resistant layer (9) is made of a chromium nitride coating. A rotating mechanism (10) is provided at a rear end position of the lower end surface of the inner wall of the tool handle (1), and the rotating mechanism (10) includes a motor (101) and a first bevel gear (102). A connecting column (104) is fixedly provided at an upper end position of the rear end surface of the rotating shaft (7), and the other end of the connecting column (104) is fixedly connected to the side opposite to the rear end surface of the inner wall of the tool handle (1). A second bevel gear (103) is fixedly sleeved at the center of the outer wall of the connecting column (104).

2. A new superhard knife according to claim 1, characterized in that: The limiting column (401) is slidably arranged in the sliding groove (5), and a limiting handle (403) is fixedly arranged on the upper end surface of the limiting column (401).

3. The novel superhard knife according to claim 1, characterized in that: The two ends of the spring (402) are respectively fixedly connected to the outer wall of the limiting column (401) at the front and rear end positions, and the spring (402) is movably engaged in the sliding groove (5).

4. The novel superhard knife according to claim 1, characterized in that: The sealing cover (602) is fixedly provided on the upper end surface of the water tank (601), and a fixed handle (603) is fixedly provided on the upper end surface of the sealing cover (602).

5. The novel superhard knife according to claim 1, characterized in that: The lower end of the drainage pipe (604) passes through the knife handle (1), the rotating shaft (7) is rotatably arranged at a front end position in the knife handle (1), and the threaded sleeve (3) is fixedly arranged on the rear end surface of the knife head (2).

6. The novel superhard knife according to claim 1, characterized in that: The motor (101) is fixedly arranged at a rear end position of the lower end surface of the inner wall of the knife handle (1), and the first bevel gear (102) is fixedly arranged at the output end of the motor (101).

7. The novel superhard knife according to claim 1, characterized in that: The cutter head (2) is threadedly connected to the rotating shaft (7) via a threaded sleeve (3), and the second bevel gear (103) is meshed with the first bevel gear (102).

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