A machining process for an inner circular truncated cone part with radial side holes

Abstract

This invention belongs to the field of non-standard parts processing technology, specifically a processing method for a part with an inner frustum and radial side holes. The process includes the following steps: rough turning, machining the side holes, hot forging or cold extrusion, solution treatment, turning the base, boring the bottom hole, lathe finishing, and deburring. After machining the side holes in the inner frustum, this invention stretches and elongates the outer ring through hot forging or cold extrusion, thereby moving the auxiliary holes previously on the outer ring to the upper part of the outer ring. Then, the upper part of the outer ring with the auxiliary holes is removed according to dimensional requirements. Compared with traditional processes, this invention eliminates the need for welding to fill the auxiliary holes, significantly improving the mechanical and chemical properties of the workpiece.

Description

Technical Field

[0001] This invention belongs to the field of non-standard parts processing technology, and specifically relates to a processing technology for a part with an inner frustum and radial side holes. Background Technology

[0002] Non-standard parts mainly refer to accessories that are not subject to strict national standards or specifications, and are controlled freely by enterprises. There are many types of non-standard parts, and currently there is no standardized classification. They are generally independently developed by enterprises based on market needs and their own brand development to extend the product's lifespan. A part with an inner frustum and radial side holes is currently being machined using a conventional method. The inner frustum and outer ring are machined from a blank, and then the side holes are machined from the outer ring. After the side holes are machined, auxiliary holes on the outer ring are welded to fill them. This machining method significantly impacts product quality; the welded workpiece exhibits a substantial reduction in structural strength, and its corrosion resistance and other mechanical properties are also affected. Therefore, it is necessary to develop a machining process for parts with inner frustums and radial side holes to solve the aforementioned technical problems. Summary of the Invention

[0003] Purpose of the invention: The purpose of this invention is to provide a machining process for a part with an inner frustum and radial side holes, thereby solving the above-mentioned technical problems.

[0004] Technical solution: To achieve the above objectives, the present invention provides a machining process for a part with an inner frustum and radial side holes, comprising the following steps: S1, Rough turning: Rough turning the cylindrical blank to form an inner truncated cone, forming a workpiece with an inner truncated cone and an outer ring. S2, Machining side holes: Clamp the workpiece on the drilling equipment, machine the side holes along the radial direction of the inner frustum, and leave auxiliary holes on the outer wall ring; S3, Hot forging or cold extrusion: The workpiece is placed in a hot forging die or a drawing die, and the outer ring is stretched and extended by hot forging or cold extrusion processes. S4, Solution treatment: Solution heat treatment of the workpiece; S5, Turning base: After clamping the workpiece, turn out the base; S6, Boring the bottom hole: Boring a bottom hole at the bottom of the workpiece, wherein the bottom hole is connected to the side hole; S7, Lathe finishing: The workpiece after solution treatment is precision turned to remove auxiliary holes; S8, Deburring: Deburring is performed on the workpiece after finishing to obtain the final product.

[0005] After machining the side holes of the workpiece with the inner truncated cone, the outer ring is stretched and extended by hot forging or cold extrusion without affecting the inner truncated cone and its internal side holes. The auxiliary holes on the outer ring are stretched and extended to the top of the outer ring. The auxiliary holes can be removed by cutting off the upper part of the outer ring without welding or filling, thus improving the structural strength and various mechanical properties of the workpiece.

[0006] Furthermore, the number of side holes is at least four and they are evenly distributed on the inner circular platform, and the side holes are interconnected.

[0007] Furthermore, after the workpiece undergoes hot forging or cold extrusion in step S3, the outer ring is stretched, and the auxiliary hole is moved to the top of the outer ring. Hot forging can improve the mechanical and physical properties of metallic materials. Through plastic deformation of metallic materials at high temperatures, grains can be refined, and the strength and toughness of the material can be improved. In addition, hot forging can also eliminate porosity and inclusions inside the material, improving the density and uniformity of the material.

[0008] Furthermore, the solution treatment in step S4 specifically involves heating the workpiece to a high-temperature single-phase region and holding it at that temperature to allow the excess phase to fully dissolve into the solid solution, followed by rapid cooling to obtain a supersaturated solid solution. The workpiece treated with solution treatment can enhance the strength and hardness of the material and improve its corrosion resistance.

[0009] Furthermore, in step S5, turning the base specifically involves: clamping the workpiece onto a lathe or machining center, first cutting the upper plane of the base, and then turning the transition slope between the base and the outer wall ring.

[0010] Furthermore, the bottom hole is arranged along the axial direction of the inner frustum and the two are concentric. The bottom hole includes holes with different diameters at both ends, wherein the upper hole with a smaller diameter communicates with the side hole.

[0011] Furthermore, the lathe finishing process also includes chamfering and rounding of various parts.

[0012] As can be seen from the above technical solution, the present invention has the following beneficial effects: 1. This invention provides a machining process for a part with an inner frustum and radial side holes. After machining the side holes in the inner frustum, the outer ring is stretched and extended by hot forging or cold extrusion, thereby moving the auxiliary holes remaining on the outer ring to the upper part of the outer ring. Then, the upper part of the outer ring with the auxiliary holes is cut off according to the size requirements. Compared with the traditional process, this invention does not require welding to fill the auxiliary holes, and the various mechanical and chemical properties of the workpiece are significantly improved.

[0013] 2. By subjecting the workpiece to hot forging and solution treatment, this invention further improves the workpiece's corrosion resistance, enhances its strength and hardness, and better meets practical needs. Attached Figure Description

[0014] Figure 1 This is a process flow diagram of the machining of a part with an inner frustum and radial side holes according to the present invention. Figure 2 This is a schematic diagram of the structure of a part with a radial side hole on an inner frustum as described in this invention after machining the side hole; Figure 3 This is a schematic diagram of the structure of a part with an inner frustum and radial side holes as described in this invention after hot forging or cold extrusion. Figure 4 This is a schematic diagram of the finished structure of a part with an inner frustum and radial side holes according to the present invention. Figure 5 This is a cross-sectional view of a finished part with an inner frustum and radial side holes according to the present invention (4 side holes). Figure 6 This is a cross-sectional view (6 side holes) of a finished part with an inner frustum and radial side holes according to the present invention.

[0015] In the diagram: 1-inner frustum, 2-outer wall ring, 3-side hole, 4-auxiliary hole, 5-base, 6-bottom hole. Detailed Implementation

[0016] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0017] like Figure 1 As shown, a machining process for a part with an inner frustum and radial side holes includes the following steps: S1, Rough turning: Rough turning the cylindrical blank to form the inner frustum 1, forming a workpiece with the inner frustum 1 and the outer ring 2. S2, Machining side holes: such as Figure 2 As shown, the workpiece is clamped on the drilling equipment, the side hole 3 is machined along the radial direction of the inner frustum 1, and the auxiliary hole 4 is left on the outer wall ring 2; S3, hot forging or cold extrusion: such as Figure 3 As shown, the workpiece is placed in a hot forging die or a stretching die, and the outer ring 2 is stretched and lengthened by hot forging or cold extrusion processes. S4, Solution treatment: Solution heat treatment of the workpiece; S5, Turning base: After clamping the workpiece, turn out base 5; S6, Bottom hole: Bottom hole 6 is bored at the bottom of the workpiece, and the bottom hole 6 is connected to the side hole 3; S7, Lathe finishing: The workpiece after solution treatment is precision turned to remove auxiliary hole 4; S8, Deburring: Deburring is performed on the workpiece after finishing to obtain the final product, such as... Figure 4 ,5 As shown.

[0018] In this embodiment, there are at least four side holes 3, evenly distributed on the inner frustum 1, and the side holes 3 are interconnected. In this embodiment, there are four side holes. Depending on the usage requirements, the number of side holes can also be six or more, such as... Figure 6 As shown.

[0019] Specifically, after the workpiece undergoes hot forging or cold extrusion in step S3, the outer ring 2 is stretched, and the position of the auxiliary hole 4 is moved to the top of the outer ring 2.

[0020] Specifically, the solution treatment in step S4 involves heating the workpiece to a high-temperature single-phase region and maintaining the temperature at a constant temperature to allow the excess phase to fully dissolve into the solid solution, followed by rapid cooling to obtain a supersaturated solid solution.

[0021] Specifically, the turning of the base in step S5 involves: clamping the workpiece onto a lathe or machining center, first cutting the upper plane of the base 5, and then turning the transition slope between the base 5 and the outer ring 2.

[0022] In a further optimized design, the bottom hole 6 is arranged along the axial direction of the inner frustum 1 and the two are concentric. The bottom hole 6 includes holes with different diameters at both ends, wherein the hole with the smaller diameter at the top is connected to the side hole 3.

[0023] In addition, the lathe finishing process also includes chamfering and rounding of various parts.

[0024] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present invention, and these improvements should also be considered within the scope of protection of the present invention.

Claims

1. A machining process for a part with an inner frustum and radial side holes, characterized in that, Includes the following steps: S1, rough turning: rough turning the cylindrical blank to form an inner truncated cone (1) to form a workpiece with an inner truncated cone (1) and an outer ring (2); S2, Machining side holes: Clamp the workpiece on the drilling equipment, machine the side holes (3) along the radial direction of the inner frustum (1), and leave auxiliary holes (4) on the outer wall ring (2). S3, hot forging or cold extrusion: The workpiece is placed in a hot forging die or a stretching die, and the outer ring (2) is stretched and extended by hot forging or cold extrusion process; S4, Solution treatment: Solution heat treatment of the workpiece; S5, Turning the base: After clamping the workpiece, turn out the base (5). S6, Boring the bottom hole: Boring the bottom hole (6) at the bottom of the workpiece, wherein the bottom hole (6) is connected to the side hole (3); S7, Lathe finishing: The workpiece after solution treatment is precision turned to remove the auxiliary hole (4). S8, Deburring: Deburring is performed on the workpiece after finishing to obtain the final product.

2. The machining process for a part with an inner frustum and radial side holes according to claim 1, characterized in that, The number of side holes (3) is at least 4 and they are evenly distributed on the inner frustum (1), and the side holes (3) are interconnected.

3. The machining process for a part with an inner frustum and radial side holes according to claim 1, characterized in that, After the workpiece undergoes hot forging or cold extrusion in step S3, the outer ring (2) is stretched, and the position of the auxiliary hole (4) is moved to the top of the outer ring (2).

4. The machining process for a part with an inner frustum and radial side holes according to claim 1, characterized in that, The solution treatment in step S4 specifically involves heating the workpiece to a high-temperature single-phase region and maintaining the temperature at a constant temperature to allow the excess phase to fully dissolve into the solid solution, followed by rapid cooling to obtain a supersaturated solid solution.

5. The machining process for a part with an inner frustum and radial side holes according to claim 1, characterized in that, In step S5, the specific steps of turning the base are: clamping the workpiece onto a lathe or machining center, first cutting the upper plane of the base (5), and then turning the transition slope between the base (5) and the outer wall ring (2).

6. The machining process for a part with an inner frustum and radial side holes according to claim 1, characterized in that, The bottom hole (6) is arranged along the axial direction of the inner frustum (1) and the two are concentric. The bottom hole (6) includes holes with different diameters at both ends, wherein the hole with the smaller diameter at the top is connected to the side hole (3).

7. The machining process for a part with an inner frustum and radial side holes according to claim 1, characterized in that, The lathe finishing process also includes chamfering and rounding of various parts.

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