A profile tool

Abstract

This utility model belongs to the field of machining technology and discloses a forming lathe tool. The forming lathe tool includes a tool head and an insert. The tool head includes a proximal end, a middle part, and a distal end connected in sequence. The proximal end and the middle part are both frustum-shaped, with the small end face of the proximal end coinciding with the small end face of the middle part. The distal end includes a proximal end face, a distal end face, and an arcuate side surface disposed between the proximal end face and the distal end face. The radius of the proximal end face is larger than the radius of the distal end face, and the proximal end face coincides with the large end face of the middle part. The periphery of the tool head has a cutting edge that penetrates the proximal end, the middle part, and the distal end, extending to the distal end face. The insert is fitted onto one side surface within the cutting edge, and the cutting edge line of the insert protrudes beyond the cutting edge. The forming lathe tool provided by this utility model can complete the inner liner machining of a ball end in one pass, effectively improving machining efficiency, reducing machining costs, ensuring machining quality, and minimizing insert wear, thus effectively extending the service life of the forming lathe tool.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a forming lathe tool. Background Technology

[0002] With the development of industrial manufacturing technology, the demand for powder ceramic ball head lining processing is increasing. It is widely used in medical machinery, aerospace, automobiles and other fields, mainly for functions such as shock absorption, buffering and sealing.

[0003] Currently, the machining of ball end liners is a common process. Typically, multiple steps are required to achieve the desired precision and quality, including turning and grinding. This often involves multiple operations and tool changes to complete the machining process, which is not only inconvenient and inefficient, but also has high processing costs. Furthermore, the cutting tools are prone to wear during machining, leading to unstable cutting forces and compromising the machining quality of the ball end liners. Utility Model Content

[0004] The purpose of this invention is to provide a forming lathe tool that can complete the inner lining machining of a ball head in one operation, which is convenient, effectively improves machining efficiency, reduces machining costs, reduces wear, and ensures machining quality.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A forming turning tool is provided, comprising:

[0007] The cutting head includes a proximal end, a middle part, and a distal end connected in sequence; wherein,

[0008] Both the proximal end and the middle part are frustoconical, and the small end face of the proximal end coincides with the small end face of the middle part.

[0009] The distal end includes a proximal end face, a distal end face, and an arcuate side surface disposed between the proximal end face and the distal end face. The radius of the proximal end face is larger than the radius of the distal end face, and the proximal end face coincides with the large end face of the middle part.

[0010] The blade head has a cutting edge around its periphery, the cutting edge extending through the proximal end, the middle part, and the distal end, and extending to the distal end face; and

[0011] The blade is fitted to one side of the cutting edge, and the cutting edge of the blade protrudes from the cutting edge.

[0012] Optionally, the cutting edge includes a proximal cutting edge located at the proximal end, the radial cross-section of the bottom surface of the proximal cutting edge being arc-shaped; the generatrix of the bottom surface of the proximal cutting edge is parallel to the generatrix of the proximal end; and / or

[0013] The cutting edge includes an intermediate cutting edge disposed in the middle part, the radial cross-section of the bottom surface of the intermediate cutting edge is arc-shaped, and the generatrix of the bottom surface of the intermediate cutting edge is arranged parallel to the generatrix of the middle part.

[0014] Optionally, the cutting edge includes a distal cutting edge disposed at the distal end, the radial cross-section of the bottom surface of the distal cutting edge is arc-shaped, and the proximal cross-sectional area of ​​the distal cutting edge is larger than the distal cross-sectional area of ​​the distal cutting edge.

[0015] Optionally, the intersection line of the cutting edge and the distal end face is located inside the edge line of the distal end face.

[0016] Optionally, the included angle α between the two sides of the cutting edge is in the range of 30°-90°.

[0017] Optionally, the two sides of the cutting edge extend to intersect the axis of the cutting head.

[0018] Optionally, the cutter head further includes a clearance portion, which is axially disposed on one side of the large end face of the proximal end. The clearance portion includes a disc body and a frustum body connected to the disc body. The proximal end of the frustum body coincides with the large end face of the disc body, and the disc body is located between the frustum body and the proximal end.

[0019] Optionally, the cutting head further includes a transition portion disposed between the proximal end and the clearance portion, the cutting edge extending through the transition portion; wherein,

[0020] The distal end of the transition portion is connected to the proximal end portion, and a first transition arc surface is formed between the distal end of the transition portion and the proximal end portion;

[0021] The proximal end of the transition portion is connected to the disk body, and a second transition arc surface is formed between the proximal end of the transition portion and the disk body.

[0022] Optionally, it also includes a shank connected to the proximal end of the blade tip.

[0023] Optionally, the cutting head is provided with multiple cutting edges at intervals along the circumference, and the blade is provided with multiple blades, each corresponding to one of the cutting edges.

[0024] The beneficial effects of this utility model are:

[0025] The forming lathe tool provided by this utility model has its proximal and middle portions of the tool head designed as frustum shapes, and the side of the distal portion designed as an arc surface. The radius of the proximal surface of the distal portion is larger than the radius of the distal surface, so that the outer edge shape of the cutting edge at the arc surface of the proximal, middle, and distal portions is the same as the generatrix shape of the inner liner of the ball end. Furthermore, the cutting edge line of the insert protrudes beyond the cutting edge, allowing for one-time machining of the ball end liner. This facilitates machining, effectively improves machining efficiency, reduces machining costs, minimizes errors caused by tool changes during machining, achieves higher machining accuracy, and ensures stable machining quality. In addition, the insert design avoids tool head wear, resulting in minimal insert wear and ensuring machining quality while effectively extending the service life of the forming lathe tool. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the forming lathe tool for machining the ball head liner provided by this utility model;

[0027] Figure 2 This is a schematic diagram of the cutter head provided by this utility model from one perspective;

[0028] Figure 3 This is a schematic diagram of the cutter head provided by this utility model from another perspective;

[0029] Figure 4 This is a schematic diagram of the forming tool provided by this utility model.

[0030] In the picture:

[0031] 10. Ball head;

[0032] 100. Cutting head; 101. Cutting edge; 1011. Proximal cutting edge; 1012. Middle cutting edge; 1013. Distal cutting edge; 10131. Arc; 110. Proximal end; 120. Middle part; 130. Distal end; 131. Distal end face; 132. Arc-shaped side; 140. Clearance part; 141. Disc body; 142. Frustum body; 150. Transition part; 151. First transition arc surface; 152. Second transition arc surface;

[0033] 200. Blade; 201. Cutting edge line;

[0034] 300. Tool holder; 310. Reinforcing part. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] Reference Figures 1 to 4 As shown, this embodiment provides a forming turning tool for machining the inner liner of a ball end 10. The forming turning tool includes a cutting head 100 and an insert 200.

[0040] Specifically, the cutting head 100 includes a proximal end portion 110, a middle portion 120, and a distal end portion 130 connected in sequence. Both the proximal end portion 110 and the middle portion 120 are frustum-shaped, with the small end face of the proximal end portion 110 coinciding with the small end face of the middle portion 120. The distal end portion 130 includes a proximal end face, a distal end face 131, and an arcuate side surface 132 disposed between the proximal end face and the distal end face 131. The radius of the proximal end face is larger than the radius of the distal end face 131, and the proximal end face coincides with the large end face of the middle portion 120. A cutting edge 101 is provided around the periphery of the cutting head 100, penetrating the proximal end portion 110, the middle portion 120, and the distal end portion 130, and extending to the distal end face 131. A blade 200 is fitted onto one side surface within the cutting edge 101, and the cutting edge line 201 of the blade 200 protrudes from the cutting edge 101. The cutting edge line 201 of the insert 200 has the same shape as the outer edge of the cutting edge 101. The proximal end 110, the middle part 120, and the distal end 130 are connected sequentially from the proximal end to the distal end of the forming tool. The distal end of the forming tool refers to the end extending into the inner liner, and the proximal end is the opposite end of the distal end. The definitions of the proximal and distal ends of each part of the forming tool are the same as those of the proximal and distal ends of the forming tool itself, and will not be elaborated further here.

[0041] In this embodiment, the proximal end 110 and middle part 120 of the cutting head 100 are designed as frustum shapes, and the side of the distal end 130 is designed as an arc surface. The radius of the proximal end face of the distal end 130 is larger than the radius of the distal end face 131, so that the outer edge shape of the cutting edge 101 at the proximal end 110, middle part 120, and the arc side 132 of the distal end 130 is the same as the inner liner generatrix shape of the ball head 10. The cutting edge line 201 of the insert 200 protrudes from the cutting edge 101, thereby enabling the inner liner machining of the ball head 10 to be completed in one step. This facilitates machining, effectively improves machining efficiency, reduces machining costs, minimizes errors caused by tool changes during machining, achieves higher machining accuracy, and ensures the stability of machining quality. In addition, the design of the insert 200 can prevent wear of the cutting head 100. The low wear of the insert 200 means that the forming tool wears slowly, ensuring machining quality while effectively improving the service life of the forming tool.

[0042] For example, the hardness of the blade 200 is greater than or equal to the hardness of the tip 100.

[0043] For example, the cutting tool 200 is made of cemented carbide, which has high strength and low wear. Preferably, the cemented carbide in this embodiment can be a tungsten carbide-based cemented carbide. Tungsten carbide-based cemented carbide has high hardness, high heat resistance, and high toughness, which can effectively reduce the wear of the cutting tool 200, making the cutting force of the cutting tool 200 more stable and effectively ensuring the machining quality. Of course, the cemented carbide can also be titanium carbide-based, tantalum carbide-based, or other alloys, and is not limited here.

[0044] For example, the shape of the blade 200 can be the same as the shape of the side of the cutting edge 101 so that the blade 200 has good support and improves the service life of the forming head 100.

[0045] In some embodiments, such as Figure 2 and Figure 3 As shown, the cutting edge 101 includes a proximal cutting edge 1011 located at the proximal end 110. The radial cross-section of the bottom surface of the proximal cutting edge 1011 is arc-shaped. The generatrix of the bottom surface of the proximal cutting edge 1011 is parallel to the generatrix of the proximal end 110 to facilitate chip removal and to give the cutting head 100 good strength, effectively preventing breakage. Of course, the shape of the bottom surface of the proximal cutting edge 1011 can also be other shapes, which is not limited in this application.

[0046] In some embodiments, continue as follows Figure 2 and Figure 3 As shown, the cutting edge 101 includes an intermediate cutting edge 1012 disposed in the intermediate portion 120. The radial cross-section of the bottom surface of the intermediate cutting edge 1012 is arc-shaped. The generatrix of the bottom surface of the intermediate cutting edge 1012 is parallel to the generatrix of the intermediate portion 120. The transition between the proximal cutting edge 1011 and the distal cutting edge 1013 is smooth to facilitate chip removal and to give the cutting head 100 good strength, effectively preventing breakage. Of course, the bottom surface shape of the intermediate cutting edge 1012 can also be other shapes, which is not limited in this application.

[0047] In some embodiments, continue as follows Figure 2 and Figure 3 As shown, the cutting edge 101 includes a distal cutting edge 1013 located at the distal end 130. The radial cross-section of the bottom surface of the distal cutting edge 1013 is arc-shaped, and the proximal cross-sectional area of ​​the distal cutting edge 1013 is larger than the distal cross-sectional area. This facilitates chip removal while ensuring the strength of the cutting edge 101 at the distal end 130, effectively preventing breakage, protecting the insert 200, and improving the service life of the forming cutter head 100. Exemplarily, the cross-sectional area of ​​the distal cutting edge 1013 can gradually decrease from the proximal end to the distal end. Of course, the bottom surface shape of the distal cutting edge 1013 can also be other shapes, which are not limited in this application.

[0048] It is worth mentioning that, such as Figure 2 As shown, the intersection line of the cutting edge 101 and the distal end face 131 is located inside the edge line of the distal end face 131, so that the cutting edge line 201 of the cutting edge 101 at the distal end face 131 can cut the inner substrate surface of the ball head 10. Exemplarily, the distal cutting edge 1013 intersects the distal end face 131 to form an arc line 10131, which is located inside the edge line of the distal end face 131. Exemplarily, the arc line 10131 and the distal end face 131 can have the same center.

[0049] For example, such as Figure 4 As shown, the two sides of the cutting edge 101 are set at an angle, and the value of the included angle α between the two sides of the cutting edge 101 is in the range of 30°-90°, so as to ensure that the cutting head 100 has sufficient strength and that the cutting edge 101 has an appropriate size to facilitate chip removal.

[0050] For example, the two sides of the cutting edge 101 extend to intersect the axis of the cutting head 100 so that the angle between the cutting blade 200 and the inner liner of the ball head 10 is more suitable for cutting.

[0051] In this embodiment, reference continues to be made to... Figure 2 and Figure 3 As shown, the cutter head 100 also includes a clearance portion 140, which is axially disposed on one side of the large end face of the proximal end portion 110. The clearance portion 140 includes a disc body 141 and a frustum body 142 connected to the disc body 141. The proximal end of the frustum body 142 coincides with the large end face of the disc body 141, and the disc body 141 is located between the frustum body 142 and the proximal end portion 110. In this embodiment, the clearance portion 140 can prevent damage caused by collision between the cutter head 100 and the ball head 10.

[0052] In this embodiment, reference continues to be made to... Figure 2 and Figure 3 As shown, the cutting head 100 also includes a transition portion 150 disposed between the proximal end portion 110 and the clearance portion 140, with the cutting edge 101 penetrating through the transition portion 150. The distal end of the transition portion 150 connects to the proximal end portion 110, and a first transition arc surface 151 is formed between the distal end of the transition portion 150 and the proximal end portion 110; the proximal end of the transition portion 150 connects to the disk body 141, and a second transition arc surface 152 is formed between the proximal end of the transition portion 150 and the disk body 141. The provision of the transition portion 150, the first transition arc surface 151, and the second transition arc surface 152 allows for the forming of the inner liner end of the ball head 10, avoiding secondary processing.

[0053] For example, the shape of the transition portion 150 is designed according to the inner lining structure of the ball head 10. In this embodiment, the transition portion 150 is shaped like a frustum. The large end face of the transition portion 150 is connected to the disk, and the small end face of the transition portion 150 is connected to the large end face of the proximal end portion 110.

[0054] In this embodiment, the cutter head 100 is provided with at least one cutting edge 101. When the cutter head 100 is provided with multiple cutting edges 101 at intervals along the circumference, the blade 200 is provided with multiple blades and is provided in a one-to-one correspondence with the cutting edges 101, which can speed up the forming of the inner liner of the ball head 10 and improve the processing efficiency of the inner liner of the ball head 10.

[0055] In this embodiment, reference is made to Figure 1As shown, the forming turning tool also includes a tool holder 300, which is connected to the proximal end of the tool head 100 to facilitate connection between the forming turning tool and the tool post of the lathe. Specifically, the tool holder 300 is connected to the frustum 142.

[0056] For example, a reinforcing part 310 is provided between the handle 300 and the cutter head 100 to ensure the connection strength between the handle 300 and the cutter head 100. The reinforcing part 310 can be formed by welding.

[0057] In this embodiment, the forming lathe tool is used as follows: First, the tool holder 300 is inserted into the tool post of the lathe and fixed. Then, the position and angle of the tool head 100 are adjusted so that the cutting tool 200 contacts the inner liner surface of the ball head 10. Then, the lathe is started, and the feed speed of the lathe and the rotation speed of the tool are controlled to perform precision turning. The forming lathe tool can accurately control the machining parameters to complete the machining of the inner liner of the ball head 10 in one go, simplifying the machining process, making the machining more convenient, and avoiding the occurrence of multiple machining or repairs, thereby improving machining efficiency and machining quality, and greatly saving machining time and costs.

[0058] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A forming tool, characterized in that include: A cutting head (100), comprising a proximal end (110), a middle part (120), and a distal end (130) connected in sequence; wherein, Both the proximal end portion (110) and the intermediate portion (120) are frustum-shaped, and the small end face of the proximal end portion (110) coincides with the small end face of the intermediate portion (120). The distal end (130) includes a proximal end face, a distal end face (131), and an arcuate side surface (132) disposed between the proximal end face and the distal end face (131). The radius of the proximal end face is greater than the radius of the distal end face (131). The proximal end face coincides with the large end face of the middle part (120). The blade (100) has a cutting edge (101) around its periphery, the cutting edge (101) penetrating the proximal end (110), the middle part (120) and the distal end (130), and the cutting edge (101) extending to the distal end face (131); and The blade (200) is fitted to one side of the cutting edge (101), and the cutting edge line (201) of the blade (200) protrudes from the cutting edge (101).

2. The forming turning tool according to claim 1, characterized in that The cutting edge (101) includes a proximal cutting edge (1011) disposed at the proximal end (110), the radial cross-section of the bottom surface of the proximal cutting edge (1011) being arc-shaped; the generatrix of the bottom surface of the proximal cutting edge (1011) being arranged parallel to the generatrix of the proximal end (110); and / or The cutting edge (101) includes an intermediate cutting edge (1012) disposed in the middle part (120). The radial cross section of the bottom surface of the intermediate cutting edge (1012) is arc-shaped, and the generatrix of the bottom surface of the intermediate cutting edge (1012) is arranged parallel to the generatrix of the middle part (120).

3. The forming turning tool according to claim 1, characterized in that The cutting edge (101) includes a distal cutting edge (1013) disposed at the distal end (130). The radial cross-section of the bottom surface of the distal cutting edge (1013) is arc-shaped, and the proximal cross-sectional area of ​​the distal cutting edge (1013) is larger than the distal cross-sectional area of ​​the distal cutting edge (1013).

4. The forming turning tool according to claim 1, characterized in that The intersection line of the cutting edge (101) and the distal end face (131) is located inside the edge line of the distal end face (131).

5. The forming turning tool according to claim 1, characterized in that The included angle α between the two sides of the cutting edge (101) ranges from 30° to 90°.

6. The forming turning tool according to claim 1, characterized in that The two sides of the cutting edge (101) extend and intersect the axis of the cutting head (100).

7. The forming turning tool according to claim 1, characterized in that The cutter head (100) also includes a clearance portion (140), which is axially disposed on one side of the large end face of the proximal end portion (110). The clearance portion (140) includes a disc body (141) and a frustum body (142) connected to the disc body (141). The proximal end of the frustum body (142) coincides with the large end face of the disc body (141), and the disc body (141) is located between the frustum body (142) and the proximal end portion (110).

8. The forming turning tool according to claim 7, characterized in that The cutting head (100) further includes a transition portion (150) disposed between the proximal end portion (110) and the clearance portion (140), and the cutting edge (101) is disposed through the transition portion (150); wherein, The distal end of the transition portion (150) is connected to the proximal end portion (110), and a first transition arc surface (151) is formed between the distal end of the transition portion (150) and the proximal end portion (110). The proximal end of the transition portion (150) is connected to the disk body (141), and a second transition arc surface (152) is formed between the proximal end of the transition portion (150) and the disk body (141).

9. The forming turning tool according to claim 1, characterized in that It also includes a handle (300) connected to the proximal end of the blade (100).

10. A forming turning tool according to any of claims 1 - 9, characterized in that The cutting head (100) is provided with a plurality of cutting edges (101) spaced apart along the circumference, and the blade (200) is provided with a plurality of blades, each corresponding to one of the cutting edges (101).

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