Turning and clamping tool for thin-wall circular ring part
By designing the turning and clamping tooling for thin-walled ring parts, using the structure of the mandrel and the gland, limiting the axial displacement of the parts and changing the direction of stress, the problems of stress concentration and deformation caused by traditional clamping methods are solved, and the precise processing and production efficiency of the parts are improved.
Patent Information
- Application Number
- CN202421648852.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-12
AI Technical Summary
When the traditional three-claw chuck directly clamps thin-walled ring parts, the contact stress area is small, resulting in stress concentration, which easily causes parts to deform and cannot meet the processing requirements.
A thin-walled ring parts turning and clamping tool is designed, including a mandrel and a gland. The clamping part of the mandrel is connected to the positioning part, and the axial displacement of the part is restricted through the limiting flange of the positioning block and the gland to avoid direct contact; the pressing end of the gland is matched with the top tip of the machine tool to change the force direction of the part, and change from radial to axial direction.
It effectively avoids stress concentration, prevents parts from deforming, and ensures that there is no deformation during the turning process. At the same time, the tooling structure is simple, easy to disassemble and assemble, and improves production efficiency.
Smart Images
Figure CN222806531U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical processing, and in particular mainly relates to a turning and clamping tool for thin-walled circular ring parts. Background Art
[0002] With the rapid development of modern manufacturing, the demand for precision parts is growing, especially thin-walled circular ring parts are increasingly widely used in aerospace, automobile manufacturing, biomedicine and other fields. However, due to their special geometric shape and material properties, there are many challenges in the processing of thin-walled circular ring parts, such as processing accuracy control, surface quality assurance, processing deformation control, etc.
[0003] Thin-walled circular ring parts are structural parts with relatively thin walls, and are mainly used in lightweight design and material-saving manufacturing processes. During the parts processing process, factors such as tool cutting force, heat, machine tool chatter, and material surface hardening will affect the final forming of the parts. In the traditional clamping process, due to the poor rigidity of thin-walled circular ring parts, the three-jaw chuck directly clamps the thin-walled circular ring parts, which will cause stress concentration due to the small contact force area, thereby causing the thin-walled circular ring parts to deform. Therefore, the traditional clamping method cannot meet the processing requirements of thin-walled circular ring parts.
[0004] In view of this, it is necessary to improve the existing turning and clamping tooling for thin-walled circular ring parts. Utility Model Content
[0005] In view of the shortcomings of the prior art, the utility model provides a thin-walled circular ring part turning clamping tool to solve the problem that the three-jaw chuck directly clamps the thin-walled circular ring part, resulting in a small contact force area and easy stress concentration. It is achieved through the following technical solutions:
[0006] A thin-walled circular ring part turning and clamping tooling comprises: a core rod and a pressure cover, the core rod comprises a supporting portion, a positioning portion and a clamping portion, the clamping portion is connected to the positioning portion, the positioning portion is installed on the supporting portion, and is used to limit the axial movement of the thin-walled circular ring part, and the thin-walled circular ring part is sleeved on the supporting portion; the pressure cover is sleeved on the supporting portion, and a limiting flange is provided at one end of the pressure cover, and the limiting flange abuts against the thin-walled circular ring part to limit the axial displacement of the thin-walled circular ring part.
[0007] Preferably, the other end of the gland is provided with a clamping end, and the inner ring of the clamping end is provided with a conical surface.
[0008] Preferably, the outer peripheral surface of the clamping portion is used for clamping by a three-jaw chuck.
[0009] Preferably, the outer diameter of the clamping portion is greater than the outer diameter of the supporting portion.
[0010] Preferably, the inner diameter of the clamping portion is smaller than the inner diameter of the supporting portion.
[0011] Preferably, the inner diameter of the gland is greater than or equal to the inner diameter of the support portion.
[0012] Preferably, the conical surface of the clamping end is used for mating contact with the center of a machine tool.
[0013] Preferably, surfaces of the positioning portion and the limiting flange facing each other are parallel.
[0014] The implementation principle and beneficial effects of the utility model are:
[0015] (1) The thin-walled circular ring part is installed on the supporting part by fixing the clamping part with the three-jaw chuck of the machine tool, and the axial displacement of the thin-walled circular ring part is limited by the limiting flange of the positioning block and the pressure cover, thereby avoiding the three-jaw chuck from directly contacting the thin-walled circular ring part and preventing the thin-walled circular ring part from being locally sunken due to stress concentration.
[0016] (2) The clamping end is fixed by the machine tool tip, and then the thin-walled circular ring part is processed. By changing the force direction from radial to axial, it is ensured that no deformation occurs during the turning process.
[0017] (3) The tooling adopts a clamping and pushing method to fix the thin-walled circular ring parts. The tooling structure is simple and easy to disassemble, which improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 It is an exploded view of the utility model;
[0021] Figure 3 It is a structural schematic diagram of the core rod of the utility model;
[0022] Figure 4 It is a structural schematic diagram of the gland of the utility model.
[0023] Explanation of the reference numerals: 100, thin-walled circular ring part; 200, three-jaw chuck; 300, machine tool center; 301, mounting part; 302, clamping part; 1, core rod; 11, supporting part; 12, positioning part; 13, clamping part; 2, pressure cover; 21, limiting flange; 22, clamping end. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.
[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0027] Reference Figure 1 , Figure 2 and Figure 3 This embodiment relates to a thin-walled circular ring part turning clamping tool, which is used to clamp the thin-walled circular ring part 100 to prevent the three-jaw chuck 200 from directly contacting the thin-walled circular ring part 100. Specifically, it includes a mandrel 1 and a gland 2; the mandrel 1 includes a supporting portion 11, a positioning portion 12 and a clamping portion 13, the clamping portion 13 is connected to the positioning portion 12, and the positioning portion 12 is installed on the supporting portion 11;
[0028] Furthermore, the supporting portion 11 is a hollow cylindrical structure, and the thin-walled circular ring part 100 to be processed is a circular ring structure, and its outer circumference is a groove opening outward. The outer diameter of the supporting portion 11 is less than or equal to the inner diameter of the thin-walled circular ring part 100, and the thin-walled circular ring part 100 is sleeved on the supporting portion 11. The clamping portion 13 is a hollow cylindrical structure, and one end of the clamping portion 13 is used to be clamped and fixed by the three-jaw chuck 200, and the other end of the clamping portion 13 is coaxially connected to the supporting portion 11. The outer diameter of the clamping portion 13 is greater than the outer diameter of the supporting portion 11, and the inner diameter of the clamping portion 13 is smaller than the inner diameter of the supporting portion 11. The positioning portion 12 is a circular ring structure, and the positioning portion 12 is integrally connected to the outer surface of the supporting portion 11. The positioning portion 12 is used to resist the thin-walled circular ring part 100 and limit the axial movement of the thin-walled circular ring part 100.
[0029] Reference Figure 1 , Figure 2 and Figure 4 The gland 2 is sleeved on the support part 11. The gland 2 is a hollow cylindrical structure. The inner diameter of the gland 2 is greater than or equal to the inner diameter of the support part 11. A limiting flange 21 is provided at one end of the gland 2. The limiting flange 21 of the gland 2 is a circular ring structure. The limiting flange 21 is integrally connected to one end of the gland 2. The surfaces facing each other between the positioning part 12 and the limiting flange 21 are parallel. The limiting flange 21 abuts against the thin-walled circular ring part 100 to limit the axial displacement of the thin-walled circular ring part 100. Since the thin-walled circular ring part 100 is restricted between the positioning part 12 and the limiting flange 21, direct contact between the three-jaw chuck 200 and the thin-walled circular ring part 100 is avoided.
[0030] Furthermore, a clamping end 22 is provided at the other end of the pressure cover 2, and the inner ring of the clamping end 22 is provided with a conical surface. The conical surface of the clamping end 22 is used to cooperate with the machine tool center 300 to fix the thin-walled circular ring part 100. The machine tool center 300 is provided with a mounting portion 301 and a clamping portion 302. The mounting portion 301 is a cylindrical structure. The mounting portion 301 is coaxially and integrally connected with the clamping portion 302. The outer peripheral surface of the clamping portion 302 is a conical surface, which is used to cooperate with the clamping end 22 during processing.
[0031] The implementation principle of the utility model is:
[0032] The clamping part 13 is fixed by the three-jaw chuck 200 of the machine tool, and the thin-walled circular ring part 100 is installed on the supporting part 11. The axial displacement of the thin-walled circular ring part 100 is limited by the positioning block and the limiting flange 21 of the pressure cover 2, so as to avoid the three-jaw chuck 200 directly contacting the thin-walled circular ring part 100 and prevent the thin-walled circular ring part 100 from being partially sunken due to stress concentration. The clamping end 22 is further fixed by the machine tool top 300, and then the thin-walled circular ring part 100 is processed, and the force direction is changed from radial to axial to ensure that no deformation occurs during the turning process. At the same time, the tooling structure is simple, easy to disassemble and assemble, and improves production efficiency, and solves the problem that the three-jaw chuck 200 directly clamps the thin-walled circular ring part 100, resulting in a small contact force area and easy stress concentration.
[0033] The above is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.
Claims
1. A thin-walled circular ring part turning clamping tool, characterized in that: include: A core rod (1) and a gland (2), wherein the core rod (1) comprises a supporting portion (11), a positioning portion (12) and a clamping portion (13), wherein the clamping portion (13) is connected to the positioning portion (12), and the positioning portion (12) is mounted on the supporting portion (11) and is used to limit the axial movement of the thin-walled circular ring part (100), and the thin-walled circular ring part (100) is sleeved on the supporting portion (11); The pressure cover (2) is sleeved on the support portion (11), and a limiting flange (21) is provided at one end of the pressure cover (2). The limiting flange (21) abuts against the thin-walled circular ring part (100) to limit the axial displacement of the thin-walled circular ring part (100).
2. The thin-walled circular ring parts turning fixture according to claim 1 is characterized in that: The other end of the gland (2) is provided with a clamping end (22), and the inner ring of the clamping end (22) is provided with a conical surface.
3. The thin-walled circular ring parts turning fixture according to claim 1 is characterized in that: The outer peripheral surface of the clamping portion (13) is used for clamping by a three-jaw chuck (200).
4. The thin-walled circular ring parts turning fixture according to claim 1 is characterized in that: The outer diameter of the clamping portion (13) is greater than the outer diameter of the supporting portion (11).
5. The thin-walled circular ring parts turning fixture according to claim 1 is characterized in that: The inner diameter of the clamping portion (13) is smaller than the inner diameter of the supporting portion (11).
6. The thin-walled circular ring parts turning fixture according to claim 1 is characterized in that: The inner diameter of the gland (2) is greater than or equal to the inner diameter of the support portion (11).
7. The thin-walled circular ring parts turning fixture according to claim 2 is characterized in that: The conical surface of the pressing end (22) is used for cooperating with the top of a machine tool (300).
8. The thin-walled circular ring parts turning fixture according to claim 1 is characterized in that: The surfaces of the positioning portion (12) and the limiting flange (21) facing each other are parallel.