Valve plate end face with positioning island block machining tooling

Abstract

The utility model relates to a kind of machining cutter devices with positioning island block in valve piece end face, including tool bar and tool body, the lower end of tool bar is equipped with tool bar gap and tool body support part, tool body includes tool post fixed part and tool post, the upper end of tool post is fixed in the lower end left side of tool post fixed part, the lower end surface of tool post fixed part in tool post right side forms tool post fixed part avoiding top surface, the right side of tool post forms tool post avoiding side, tool post avoiding side and tool post fixed part avoiding top surface are connected, the lower end front of tool post forms plane processing blade and chamfer blade;The upper half of tool body is located in tool bar gap, the rear of the lower half of tool body and the rear of entire tool post are all pasted with the front of tool body support part, the lower end of tool post is protruded downward the lower end surface of tool body support part.The utility model can improve processing efficiency and can prolong service life.

Description

Technical Field

[0001] This utility model relates to a machining tool device, specifically disclosing a machining tool device with a positioning island block on the end face of a valve plate. Background Technology

[0002] Currently, many types of valve disc precision castings have an island block cast on the end face. This island block serves as a limit during valve disc assembly. However, the addition of this island block restricts the clearance between the tool and the workpiece during machining, resulting in a small infeed / outfeed space. Consequently, the tool's rigidity becomes extremely fragile. To quickly remove excess material, the roughing tool is subjected to high cutting forces, making the insert extremely prone to breakage. This leads to breakage of the next tool used to machine that area, resulting in scrapped parts. This increases the cost of the entire production process and poses a risk to part quality.

[0003] After machining the bottom plane area of ​​the valve plate, burrs remain at the intersection of the plane and the casting blank. Due to the presence of island blocks, these burrs are difficult to remove later. To better remove the burrs, chamfering is required during the machining of this area. This results in less space for the tool used to machine this area, leading to the aforementioned tool breakage. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a machining tool device with a positioning island block on the end face of a valve plate.

[0005] According to the technical solution provided by this utility model, the valve plate end face has a machining tool device for positioning island blocks, including a tool bar and a tool body, with the tool body fixed on the tool bar; The lower end of the tool holder is provided with a tool holder notch and a tool body support part, with the tool body support part located behind the tool holder notch; The tool body includes a tool post fixing part and a tool post. The upper end of the tool post is fixed to the lower left side of the tool post fixing part. The lower end surface of the tool post fixing part on the right side of the tool post forms a tool post fixing part clearance top surface. The right side surface of the tool post forms a tool post clearance side surface. The tool post clearance side surface is connected to the clearance top surface of the tool post fixing part. The lower end surface of the tool post is a slope that is higher at the back and lower at the front. A flat machining edge and a chamfering edge are formed at the lower front of the tool post. The chamfering edge is located to the right of the flat machining edge. The chamfering edge is set with the left side higher than the right side. The right end of the flat machining edge is connected to the left end of the chamfering edge. The flat machining edge and the chamfering edge are arranged at an obtuse angle. The upper half of the blade body is located inside the notch of the blade shank, and the rear of the lower half of the blade body and the rear of the entire blade column are in contact with the front of the blade body support. The lower end of the blade column protrudes downward from the lower end face of the blade body support.

[0006] Preferably, the clearance side of the blade post is perpendicular to the clearance top surface of the blade post fixing part.

[0007] Preferably, the left side of the blade post is an inclined plane, the angle between the left side of the blade post and the side of the blade post that the blade post avoids is 2-4°, and the width of the blade post gradually decreases from bottom to top.

[0008] Preferably, the angle between the planar machining edge and the chamfering edge is 133-137°.

[0009] Preferably, the angle between the planar machining edge and the chamfering edge is 135°.

[0010] Preferably, a tool post is also fixed on the upper left side of the tool post fixing part, and the tool post is located inside the tool shank notch.

[0011] This invention can improve processing efficiency and extend service life. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the working state of this utility model.

[0013] Figure 2 This is the front view of this utility model.

[0014] Figure 3 This is the left view of this utility model.

[0015] Figure 4 This is a perspective view of the present invention. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] A machining tool device with positioning island blocks on the end face of a valve plate, such as Figure 1-4 As shown, it includes a tool holder 1 and a tool body 2, with the tool body 2 fixed on the tool holder 1; The lower end of the tool holder 1 is provided with a tool holder notch 1.1 and a tool body support part 1.2, and the tool body support part 1.2 is located behind the tool holder notch 1.1; The cutting tool 2 includes a tool post fixing part 2.1 and a tool post 2.2. The upper end of the tool post 2.2 is fixed to the lower left side of the tool post fixing part 2.1. The lower end face of the tool post fixing part 2.1 on the right side of the tool post 2.2 forms a tool post fixing part clearance top surface 2.11, and the right side face of the tool post 2.2 forms a tool post clearance side surface 2.21. The tool post clearance side surface 2.21 is connected to the tool post fixing part clearance top surface 2.11. The lower end face of the tool post 2.2 is a slope that is higher at the back and lower at the front. The lower front part of the tool post 2.2 forms a planar machining edge 2.22 and a chamfering edge 2.23. The chamfering edge 2.23 is located to the right of the planar machining edge 2.22. The chamfering edge 2.23 is set with the left side higher than the right side. The right end of the planar machining edge 2.22 is connected to the left end of the chamfering edge 2.23. The planar machining edge 2.22 and the chamfering edge 2.23 are arranged at an obtuse angle. The upper half of the blade body 2 is located inside the blade notch 1.1. The rear of the lower half of the blade body 2 and the rear of the entire blade column 2.2 are in contact with the front of the blade support part 1.2. The lower end of the blade column 2.2 protrudes downward from the lower end face of the blade support part 1.2.

[0018] The clearance side 2.21 of the blade post is perpendicular to the clearance top surface 2.11 of the blade post fixing part.

[0019] The angle between the planar machining edge 2.22 and the chamfering edge 2.23 is 133-137°.

[0020] The included angle between the planar machining edge 2.22 and the chamfering edge 2.23 is 135°.

[0021] In this invention, the top surface 2.11 of the tool post fixing part 2.1 and the side surface 2.21 of the tool post 2.2 are provided on the tool post 2.2 to avoid the positioning island block 3.2 on the valve plate 3. The flat machining blade 2.22 is used to machine the top surface plane of the bottom cylindrical section of the stepped cylinder 3.1 on the valve plate 3. The chamfering blade 2.23 performs deburring and chamfering on the bottom cylindrical section of the stepped cylinder 3.1 when the flat machining blade 2.22 machines the top surface plane of the bottom cylindrical section of the stepped cylinder 3.1, which greatly improves the processing efficiency.

[0022] Because the left side of the cutter post 2.2 is beveled, the angle between the left side of the cutter post 2.2 and the clearance side 2.21 is 2-4°, and the width of the cutter post 2.2 gradually decreases from bottom to top, this results in a larger width at the lower end of the cutter post 2.2. This enhances the strength of the cutter post 2.2, especially the strength at the chamfered cutting edge 2.22, and extends the service life of the cutter body 2.

[0023] Because a blade post 2.2 is also fixed to the upper left side of the blade post fixing part 2.1, and this blade post 2.2 is located inside the blade shank notch 1.1, after one of the blade posts 2.2 is worn or damaged, the blade body 2 can be flipped and fixed for use, which greatly extends the service life of the blade body 2.

[0024] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A machining tool device for a valve plate end face having a positioning island block, comprising a tool holder (1) and a tool body (2), wherein the tool body (2) is fixed on the tool holder (1); Its characteristics are: The lower end of the tool bar (1) is provided with a tool bar notch (1.1) and a tool body support (1.2), and the tool body support (1.2) is located behind the tool bar notch (1.1); The blade body (2) includes a blade fixing part (2.1) and a blade (2.2). The upper end of the blade (2.2) is fixed to the lower left side of the blade fixing part (2.1). The lower end face of the blade fixing part (2.1) on the right side of the blade (2.2) forms a blade fixing part clearance top surface (2.11), and the right side face of the blade (2.2) forms a blade clearance side surface (2.21). The blade clearance side surface (2.21) is in contact with the blade fixing part clearance top surface (2.11). The lower end face of the tool post (2.2) is a slope with a higher back and a lower front. The front part of the lower end of the tool post (2.2) forms a planar machining edge (2.22) and a chamfering edge (2.23). The chamfering edge (2.23) is located to the right of the planar machining edge (2.22). The chamfering edge (2.23) is set with a higher left and a lower right. The right end of the planar machining edge (2.22) is connected to the left end of the chamfering edge (2.23). The planar machining edge (2.22) and the chamfering edge (2.23) are arranged at an obtuse angle. The upper half of the blade body (2) is located inside the notch (1.1) of the blade shank. The rear of the lower half of the blade body (2) and the rear of the entire blade column (2.2) are in contact with the front of the blade support part (1.2). The lower end of the blade column (2.2) protrudes downward from the lower end face of the blade support part (1.2).

2. The machining tool device with a positioning island block on the valve plate end face as described in claim 1, characterized in that: The blade pillar clearance side (2.21) is perpendicular to the blade pillar fixing part clearance top surface (2.11).

3. The machining tool device with a positioning island block on the valve plate end face as described in claim 2, characterized in that: The left side of the blade post (2.2) is a slope, and the angle between the left side of the blade post (2.2) and the blade post avoidance side (2.21) is 2-4°. In addition, the width of the blade post (2.2) gradually decreases from bottom to top.

4. The machining tool device with a positioning island block on the valve plate end face as described in claim 3, characterized in that: The included angle between the planar machining edge (2.22) and the chamfering edge (2.23) is 133-137°.

5. The machining tool device with a positioning island block on the valve plate end face as described in claim 4, characterized in that: The included angle between the planar machining edge (2.22) and the chamfering edge (2.23) is 135°.

6. The machining tool device with a positioning island block on the valve plate end face as described in claim 5, characterized in that: A tool post (2.2) is also fixed on the upper left side of the tool post fixing part (2.1), and the tool post (2.2) is located inside the tool shank notch (1.1).

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