Valve body cutter

Abstract

The utility model discloses a valve body cutter which comprises a cutter handle which is fixedly connected with a cutter holder through a circular sheet-shaped structure sheet. A semicircular opening is formed in the side face of the tool apron, symmetrically-arranged tool assemblies are arranged on the edge of the top of the tool apron, and each tool assembly comprises a tool fixing block and a fan-shaped tool which are sequentially arranged. Communicated cavities are formed in the cutter handle and the cutter holder, the cavities are communicated with the semicircular openings, and cold water flows in the cavities; the side surfaces of the cutter holder and the cutter handle are conical surfaces; the temperature of the tool apron can be reduced from inside to realize internal cooling, and the overall temperature of the tool is quickly reduced; the size and the size of the tool apron can be reduced, milling is facilitated while the weight of a tool is reduced, meanwhile, the cooling efficiency of the tool apron can be improved, and the inner cooling efficiency of the tool apron is higher; and through the semicircular opening, cleaning of machining chippings is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of grooving cutter structures, in particular to a valve body cutter. Background Art

[0002] Cutting tools are commonly used in mechanical processing. Cutting tools can be used to process various annular grooves, planes and outer circles. Grooving cutters are tools used to process annular grooves on cylindrical workpieces. In the prior art, the working temperature of the groove cutter is relatively high, and the overall temperature of the tool is greatly affected by its own structure and cooling method, and its reliability is difficult to guarantee.

[0003] For example, a "ring-shaped groove cutter" disclosed in a Chinese patent document, with the publication number: CN219665227U, discloses a tool holder, the top of which is fixedly connected to a tool handle; a drainage groove is provided at the front lower right corner and the rear lower left corner of the tool holder; a tool support arc plate for installing the tool is fixedly connected to the front lower left corner and the rear lower right corner of the tool holder; two groups of tool support arc plates are respectively fixedly installed with tools for processing at one end close to the drainage groove; a first liquid spray hole that is connected to each other is provided inside the tool handle and the tool holder; two groups of second liquid spray holes are also provided inside the tool holder, but this solution does not take into account the problem of tool holder cooling efficiency. Summary of the invention

[0004] In order to solve the problem of high temperature and large size of the cutting tool in the prior art, the utility model provides a valve body cutting tool, which can cool down from the inside and change the structure of the cutting tool seat to improve the cooling effect.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A valve body tool comprises: a tool handle, wherein the tool handle is fixedly connected to a tool holder through a circular sheet structure; a semicircular opening is provided on the side of the tool holder, and a symmetrically arranged tool assembly is provided on the top edge of the tool holder, wherein the tool assembly comprises a tool fixing block and a fan-shaped tool arranged in sequence; a connected cavity is provided in the tool handle and the tool holder, wherein the cavity is connected to the semicircular opening, and water-cooled water flows in the cavity; and the sides of the tool holder and the tool handle are conical surfaces. The temperature of the tool holder can be lowered from the inside to achieve internal cooling, and the overall temperature of the tool can be quickly lowered. Moreover, the cleaning of machining debris is facilitated through the semicircular opening.

[0007] Preferably, the knife seat comprises a knife connecting portion and a knife handle connecting portion which are arranged in sequence; the knife connecting portion is provided with a truncated cone structure, which can reduce the volume and size of the knife seat and avoid taking up more space.

[0008] Preferably, the fan-shaped tool is a diamond tool, and the diamond tool is fixedly connected to a tool fixing block to achieve milling of the groove.

[0009] Preferably, the fan-shaped tool comprises a central arc region, and two adjacent side surfaces of the central arc region are respectively provided with a first blade surface region and a second blade surface region, so as to realize milling in different directions.

[0010] Preferably, the tool fixing block is provided with an arc groove, and the fan-shaped tool is fixedly connected in the arc groove to achieve the fixation of the tool.

[0011] Preferably, the second blade surface area faces the center line of the blade seat, and the width of the second blade surface area is greater than the width of the first blade surface area, so as to realize milling of the groove from both sides.

[0012] Preferably, the central arc region fits the arc groove, and the radius of the arc groove is the same as that of the central arc region, so as to fix the tool and disperse the force applied to the tool.

[0013] Preferably, the tool assembly includes two centrally symmetrical tool assemblies, and the tool assembly extends inward from the edge of the tool holder to achieve milling from two symmetrical sides.

[0014] The utility model has the following advantages:

[0015] (1) It can reduce the temperature of the tool holder from the inside to achieve internal cooling, quickly reduce the overall temperature of the tool, and facilitate the cleaning of machining debris through the semicircular opening; (2) It can reduce the volume and size of the tool holder, reduce the weight of the tool, facilitate milling, and at the same time improve the cooling efficiency of the tool holder, making the internal cooling efficiency of the tool holder higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described below are merely exemplary. A person skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0017] Figure 1 Schematic diagram of the overall cross-sectional structure in the embodiment.

[0018] Figure 2 Schematic diagram of the structure of the tool in the embodiment.

[0019] Figure 3 Schematic diagram of the processing part structure in the embodiment.

[0020] In the figure:

[0021] 1-tool handle; 2-tool seat; 3-tool assembly; 4-tool handle connection part; 5-tool connection part; 6-middle connection part; 7-tool fixing block; 8-fan-shaped tool; 9-center arc area; 10-first tool face area; 11-second tool face area; 13-third tool face area; 14-arc groove; 15-semicircular opening; 16-workpiece to be processed; 17-cavity. DETAILED DESCRIPTION

[0022] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0023] like Figure 1-3 As shown, in a preferred embodiment, the utility model discloses a valve body tool, comprising: a tool handle 1, through which a tool holder 2 and a tool are fixed and clamped; the tool handle 1 is fixedly connected to the tool holder 2 through a circular sheet structure. The tool holder 2 is used to arrange the tool and mill the groove in the valve body. The top edge of the tool holder 2 is provided with a symmetrically arranged tool assembly 3, and milling is performed through two centrally symmetrical tool assemblies 3. The tool assembly 3 includes a tool fixing block 7 and a fan-shaped tool 8 arranged in sequence, and the two ends of the tool fixing block 7 respectively fix the fan-shaped tool 8 and the tool holder 2. A cavity 17 is provided in the tool holder 2 and the tool handle 1. The cavity 17 is connected to the tool holder 2 and the tool holder 1 at the same time. During milling, water-cooled water flows in the cavity 17, and the water-cooled water reduces the temperature of the tool holder 1 and the tool holder 2. A semicircular opening is provided on the side of the tool holder, and the cavity is connected to the semicircular opening, and the semicircular opening facilitates the cleaning of processing debris.

[0024] In other embodiments, the fan-shaped tool 8 includes a diamond tool, and the diamond tool is replaceably arranged on the tool holder 2, so as to facilitate the use of tools of different shapes and functions for milling.

[0025] In other embodiments, the knife seat 2 includes a knife handle connecting portion 4 connected to the knife handle 1, and the knife seat 2 includes a tool connecting portion 5 connected to the tool assembly 3. The tool connecting portion 5 is provided with a truncated cone structure. The weight of the knife seat 2 is reduced, the cost is reduced, and the processing inconvenience caused by the weight of the knife seat 2 is reduced. The size of the connection between the knife seat 2 and the knife handle 1 is the same as that of the knife handle 1.

[0026] In other embodiments, the tool handle 1 is also provided with a truncated cone structure, and the tool handle 1 includes a truncated cone of the tool handle 1, and the end with a larger diameter of the two ends of the truncated cone of the tool handle 1 is connected to the tool seat 2. The gravity of the tool handle 1 is further reduced, the cost of the tool handle 1 is further reduced, and the weight and the influence of the excessive size of the tool handle 1 on the processing are reduced. At the same time, the truncated cone structure can reduce the volume and water flow required for cooling, so that the whole tool can be cooled from the inside better. The temperature of the internal cooling can be quickly synchronized with the whole tool. Thus, the whole tool can be cooled quickly.

[0027] In other embodiments, a handle 1 is included, the cross section of the handle 1 is a trapezoid, the handle 1 is a truncated cone structure, a cavity 17 arranged in a stepped manner is provided in the handle 1, the cavity 17 is vertically arranged and passes through the handle 1, and the cavity 17 is connected to both sides of the top and bottom of the handle 1. The cavity 17 realizes cooling of the entire tool, and water-cooling water flows in the cavity 17.

[0028] The area of ​​the top of the knife handle 1 is larger than the area of ​​the bottom of the knife handle 1. The side end face of the knife seat 2 is provided with a semicircular opening 15, and the semicircular opening 15 is connected to the top of the knife handle 1. The semicircular opening 15 includes two parts from top to bottom, a semicircular top and a cylindrical part, and the diameters of the semicircular top and the cylindrical part are the same. The cylindrical part is connected to the top of the knife handle 1. The semicircular top and the knife handle 1 are respectively located at the upper and lower ends of the cylindrical part. The semicircular top and the cylindrical part are integrally formed. A circular sheet-like structure piece is provided between the cylindrical part and the top of the knife handle 1, and the diameter of the circular sheet-like structure piece is slightly smaller than the diameter of the top of the knife handle 1. The circular sheet-like structure piece includes a gasket. The cavity 17 also extends upward through the sheet-like structure piece. The cavity 17 extends upward through the cylindrical part and the semicircular top.

[0029] In other embodiments, a small cone is provided on the top of the handle 1, and the diameter reduction direction of the small cone is opposite to the diameter reduction direction of the cone-shaped structure of the handle 1. The circular sheet-like structure piece is located on the top of the small cone, and the diameter of the circular sheet-like structure piece is the same as the diameter of the top of the small cone. The cavity 17 extends upward and penetrates the small cone.

[0030] The knife handle 1 is connected to a knife seat 2, and the semicircular top and the cylindrical part are inserted into the knife seat 2. The diameter of the bottom of the knife seat 2 is greater than the diameter of the top of the knife handle 1.

[0031] In other embodiments, the tool holder 2 includes, from top to bottom, a tool connection portion 5, an intermediate connection portion 6, and a handle connection portion 4 which are sequentially connected. The connection groove is located on the bottom surface of the handle connection portion 4. The connection groove opens downward. The handle connection portion 4 is a circular shaft-like structure with multiple shoulder sections, and the cavity 17 extends upward through the handle connection portion 4. A thin shaft section is provided in the middle of the handle connection portion 4, and wide shaft sections are provided at both ends of the handle connection portion 4, and the diameter of the wide shaft section is larger than the diameter of the thin shaft section. The height of the thin shaft section at the top of the handle connection portion 4 is smaller than the height of the thin shaft section at the bottom of the handle connection portion 4. The diameter of the thin shaft section is still larger than the diameter of the top of the handle 1.

[0032] In the handle connecting portion 4, the connecting groove extends upward, passes through the wide shaft section at the bottom of the handle connecting portion 4 and the thin shaft section in the middle, and extends to the wide shaft section at the top of the handle connecting portion 4. The wide shaft section and the thin shaft section are integrally formed.

[0033] The top end surface of the handle connecting part 4 is fixedly connected to the intermediate connecting part 6. The intermediate connecting part 6 includes a cylindrical connecting part. The diameter of the cylindrical connecting part is smaller than the diameter of the wide shaft section in the handle connecting part 4. The diameter of the cylindrical connecting part is larger than the diameter of the thin shaft section in the handle connecting part 4. The cavity 17 extends upward and penetrates the intermediate connecting part 6. The intermediate connecting part 6 and the handle connecting part 4 are integrally formed.

[0034] The top end surface of the intermediate connection part 6 is fixedly connected to the tool connection part 5. The tool connection part 5 includes a tool connection part and a truncated cone connection part arranged in sequence from top to bottom. The truncated cone connection part is a truncated cone-shaped structure with a diameter that decreases downward. The bottom of the truncated cone connection part is fixedly connected to the top of the intermediate connection part, and the diameter of the bottom of the truncated cone connection part is the same as the diameter of the intermediate connection part. The truncated cone connection part and the intermediate connection part are integrally formed.

[0035] The bottom of the tool connector is fixedly connected to the top end surface of the truncated cone connector. The tool connector and the truncated cone connector are integrally formed. Tool mounting protrusions are provided on both sides of the top end surface of the tool connector, and the tool mounting protrusions are symmetrically arranged on both sides of the top end surface of the tool connector. The upper side of the tool mounting protrusion is fixedly connected to the tool.

[0036] In other embodiments, a circular arc groove 14 is machined on one side of the tool mounting protrusion near the center of the tool connecting piece, and the cross-sectional shape of the circular arc groove 14 is fan-shaped. A chamfer is provided on one side of the tool mounting protrusion near the edge of the tool connecting piece, and the chamfer angle is smaller than the angle of the circular arc groove 14.

[0037] In other embodiments, a connecting transition piece is provided between the tool connecting piece and the tool mounting protrusion, and the connecting transition piece is integrally formed with the tool connecting piece. The connecting transition piece is a square protrusion. The connecting transition piece is fixedly connected to the lower end of the tool mounting protrusion, and the connecting transition piece has the same size as the lower end of the tool mounting protrusion. The connecting transition piece includes two symmetrically arranged on the top end surface of the tool connecting piece, and the height of the connecting transition piece is less than the height of the chamfer on the upper side of the tool mounting protrusion.

[0038] In other embodiments, the tool mounting protrusion is fixedly connected with a tool body, and the tool body is disposed in the arc groove 14 of the tool mounting protrusion. The tool body is fixedly connected to the arc groove 14. The fixed connection includes one of gluing and clamping.

[0039] In other embodiments, the tool body includes a central arc area 9 that is in contact with the arc groove 14, a first blade surface area 10 is arranged above the arc area, and a second blade surface area 11 is arranged on the right side of the central arc area 9, the width of the second blade surface area 11 is greater than the width of the first blade surface area 10, and the length of the second blade surface area 11 is less than the length of the first blade surface area 10.

[0040] In other embodiments, a third blade surface area 13 is provided below the second blade surface area 11 and located on the right side of the central arc area 9. The third blade surface area 13 is formed by extending the central arc area 9 along the arc direction. When in use, the tool assembly processes the side of the workpiece 16 to be processed. The three sides of the second blade surface area 11 are respectively processed to form grooves on the side of the workpiece 16 to be processed, and the first blade surface area 10 and the third blade surface area 13 are respectively connected to the second blade surface area 11 to process the edges of the grooves.

[0041] The third blade surface area 13 is provided with a third arc angle, and the third arc angle ranges from 2 to 10 degrees, preferably 5 degrees.

[0042] In other embodiments, the first blade surface area 10 is formed by vertically extending the central arc area 9 upward, and the width of the first blade surface area 10 is in the range of 0.1-0.5mm, preferably 0.3mm. The lower right end of the first blade surface area 10 is connected to the second blade surface area 11. A first fillet is provided at the lower right end of the first blade surface area 10 and the connection with the second blade surface area 11, and the size of the first fillet is 2-R0.2. The right end of the first blade surface area 10 is provided with a first arc angle, and the range of the first arc angle is 2-10 degrees, preferably 5 degrees. The right end corners of the second blade surface area 11 are all provided with fillets, and the size of the fillet is 2-R0.3. The length of the second blade surface area 11 is in the range of 2-5mm, preferably 3.15mm, and the tolerance value is 0.02. The length of the first blade surface area 10 is in the range of 2-5mm, preferably 1.6mm, and the tolerance value is 0.02. The tool body includes a diamond tool. The tolerance value of the fillet is 0.05. The tolerance value of the chamfer is 0.05.

[0043] In other embodiments, the two tool bodies are symmetrically arranged, and the distance between the inner sides of the second blade surface areas 11 of the two tool bodies is 80 mm, with a tolerance value of 0.01. The distance between the outer sides of the first blade surface areas 10 of the two tool bodies is 90 mm, with a tolerance value of 0.1. The distance between the outer edges of the two tool mounting protrusions is 100 mm, with a tolerance value of 0.1.

[0044] In other embodiments, the semicircular opening 15 is an inner cooling hole, and the bottom of the cavity 17 is provided with a thread in the tool handle 1, and is threadedly connected to the spindle through the thread. The spindle and the tool handle 1 adjust the direction of the tool holder at the semicircular opening 15 to achieve position limiting. The semicircular opening 15 sequentially penetrates one of the two wide shaft sections and the thin shaft section, and extends to the other wide shaft section. The diameter of the cavity 17 is the same as the width of the semicircular opening 15. In other embodiments, the diameter of the cavity 17 is smaller than the width of the semicircular opening 15.

[0045] When in use, the water-cooled water flows out from the inner cooling hole to clean the debris generated by cutting, thereby helping to remove the chips from the cutting part and improving the cooling effect on the cutting part. After the water-cooled water cools the inside of the tool holder 2, it flows through the tool handle connecting part 4 and flows out of the tool holder 2 under the guidance of the semicircular opening 15, and the debris at the connection between the tool handle 1 and the tool holder 2 can be flushed out.

[0046] These modifications or improvements made on the basis of the present utility model without departing from the spirit of the present utility model all fall within the scope of protection required by the present utility model.

Claims

1. A valve body tool, characterized in that: include: A knife handle, wherein the knife handle is fixedly connected to a knife seat via a circular sheet-like structure; a semicircular opening is provided on the side of the knife seat, and a symmetrically arranged tool assembly is provided on the top edge of the knife seat, and the tool assembly includes a tool fixing block and a fan-shaped tool arranged in sequence; a connected cavity is provided in the knife handle and the knife seat, and the cavity is connected to the semicircular opening, and water-cooled water flows in the cavity; the sides of the knife seat and the knife handle are conical surfaces.

2. A valve body tool according to claim 1, characterized in that: The tool holder comprises a tool connection part and a tool handle connection part which are arranged in sequence; the tool connection part is provided with a truncated cone structure.

3. A valve body tool according to claim 1 or 2, characterized in that: The fan-shaped tool is a diamond tool, and the diamond tool is fixedly connected to the tool fixing block.

4. A valve body tool according to claim 1, characterized in that: The fan-shaped tool comprises a central arc region, and two adjacent side surfaces of the central arc region are respectively provided with a first blade surface region and a second blade surface region.

5. A valve body tool according to claim 4, characterized in that: The tool fixing block is provided with an arc groove, and the sector-shaped tool is fixedly connected in the arc groove.

6. A valve body tool according to claim 4 or 5, characterized in that: The second blade surface area faces the center line of the blade seat, and the width of the second blade surface area is greater than the width of the first blade surface area.

7. A valve body tool according to claim 5, characterized in that: The central arc region fits the arc groove, and the radius of the arc groove is the same as that of the central arc region.

8. A valve body tool according to claim 1 or 2, characterized in that: The tool assembly comprises two centrally symmetrical ones, and the tool assembly extends inwardly from the edge of the tool seat.

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