Thin-wall special-shaped deep groove machining and positioning device

Abstract

The utility model discloses a thin-wall special-shaped deep groove machining and positioning device, and particularly relates to a thin-wall special-shaped deep groove machining and positioning device which is used for fixing a thin-wall ring and comprises a round base, a round cover and a fastening screw, the thin-wall ring is a thin-wall part with an outer cambered surface and an inner conical surface, and the middle of the round base is concaved downwards to form a positioning cavity. The fastening screws are installed in the center hole and the positioning through hole, the positions of the round base and the round cover are adjusted through the fastening screws, and the thin-wall ring is positioned through the cambered surface structure of the positioning cavity and the inclined surface structure of the round cover. Compared with the prior art, the machining and positioning device has the advantages that the thin-wall ring is tightly pressed up and down through the cambered surface structure and the inclined surface structure to achieve reliable fixing of a workpiece, the thin-wall ring, the circular base and the circular cover are combined into a whole under the action of the fastening screw, the rigidity of the workpiece is improved, and cutting force needed by milling of the thin-wall special-shaped deep groove can be completely borne; and machining work of the eight-equal-division special-shaped deep groove and all the holes is completed.

Description

Technical Field

[0001] The utility model relates to a thin-wall special-shaped deep groove processing positioning device, in particular to a thin-wall special-shaped deep groove processing positioning device. Background Art

[0002] Thin-walled special-shaped parts are common processing parts. In the actual processing process, there are the following technical problems: 1) Commonly used fixed pliers cannot be clamped normally, especially when there is a curved surface on the outside of the product, clamping is extremely difficult; 2) During the machining process, due to the concentration of force points on the jaws, it often leads to problems such as poor clamping coaxiality and easy deformation, resulting in a high processing scrap rate. 3) Because the existing fixed pliers and clamping arms fail to provide sufficient support, the rigidity of the workpiece to bear the cutting force is poor. How to reliably complete the processing and positioning of thin-walled special-shaped deep grooves and ensure their processing dimensional accuracy, form and position tolerances, and coaxiality requirements has become a technical problem in this field. Utility Model Content

[0003] In view of this, the utility model proposes a thin-walled special-shaped deep groove processing positioning device, which utilizes an arc surface structure and a slope structure to press a thin-walled ring up and down to achieve reliable fixation of the workpiece. The thin-walled ring, the circular base and the round cover are combined into one under the action of the fastening screws, thereby improving the rigidity of the workpiece and being able to fully bear the cutting force required for milling thin-walled special-shaped deep grooves.

[0004] The utility model solves the above problems through the following technical means:

[0005] A thin-walled special-shaped deep groove processing positioning device, characterized in that it is used to fix a thin-walled ring, and comprises a circular base, a circular cover and a fastening screw, wherein: the thin-walled ring is a thin-walled part with an outer curved surface and an inner conical surface; the middle part of the circular base is concave to form a positioning cavity, a positioning through hole is provided in the bottom center of the positioning cavity, and the inner side surface of the positioning cavity is a curved surface structure; the side surface of the circular cover is a sloped structure, a center hole is provided on the circular cover, the fastening screw is installed in the center hole and the positioning through hole, the position of the circular base and the circular cover is adjusted by the fastening screw, and the thin-walled ring is positioned by utilizing the curved surface structure of the positioning cavity and the sloped surface structure of the circular cover.

[0006] Preferably, the main body of the thin-walled ring includes an outer arc surface and an inner conical surface, wherein: a plurality of special-shaped deep grooves are symmetrically opened on the large end surface of the thin-walled ring, spacers are arranged between adjacent special-shaped deep grooves, and connecting through holes are arranged on the spacers, wherein: the special-shaped deep grooves are of equal wall thickness structure, and the ratio of wall thickness to groove depth of the special-shaped deep grooves is 1:10 to 1:5.

[0007] Preferably, a bottom ring groove is provided at the bottom of the positioning cavity, and the size of the bottom ring groove is consistent with the size of the small end face of the thin-walled ring.

[0008] Preferably, a lower annular groove is provided on the lower outer side of the circular base, the position of the lower annular groove is consistent with the positions of the spacer and the connecting through hole, and the lower annular groove and the positioning cavity are connected through a plurality of chip leakage holes or chip leakage grooves.

[0009] The utility model provides a thin-walled special-shaped deep groove processing positioning device with the following beneficial effects:

[0010] The processing positioning device is used to fix the thin-walled ring. The thin-walled ring is a customized product used for the connection, fastening and sealing of the convex lens and the outer shell. The thin-walled ring is a thin-walled part with an outer arc surface and an inner conical surface. The processing positioning device uses the arc surface structure and the inclined surface structure to press the thin-walled ring up and down to achieve reliable fixation of the workpiece. The thin-walled ring, the round base and the round cover are combined into one under the action of the fastening screws, which improves the rigidity of the workpiece and can fully bear the cutting force required for milling thin-walled special-shaped deep grooves. The tooling can be clamped once to complete the processing of 8 equally divided special-shaped deep grooves and various holes. After using this tooling, it is possible to reliably complete the processing of various special-shaped deep grooves in the axial direction of the thin-walled workpiece, while effectively stabilizing the product quality and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0012] Figure 1 This is a schematic diagram of the installation of the utility model;

[0013] Figure 2 It is a schematic diagram of the thin-walled ring structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the circular base structure of the utility model;

[0015] Figure 4 It is a schematic diagram of the round cover structure of the utility model;

[0016] Figure 5 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 6 It is a schematic diagram of the lower ring groove structure of the utility model.

[0018] In the figure, 1-thin-walled ring, 101-outer arc surface, 102-inner cone surface, 103-special-shaped deep groove, 104-spacer, 105-connecting through hole, 2-circular base, 201-positioning cavity, 202-positioning through hole, 203-arc surface structure, 204-bottom ring groove, 205-lower ring groove, 3-round cover, 301-inclined surface structure, 302-center hole, 4-fastening screw. DETAILED DESCRIPTION

[0019] In the description of the present utility model, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0020] The utility model will be described in detail below with reference to the accompanying drawings.

[0021] like Figures 1 to 6 As shown, the main body of the thin-walled ring 1 includes an outer arc surface 101 and an inner conical surface 102, wherein: a plurality of special-shaped deep grooves 103 are symmetrically opened on the large end surface of the thin-walled ring 1, and a spacer 104 is arranged between adjacent special-shaped deep grooves 103, and a connecting through hole 105 is arranged on the spacer 104, wherein: the special-shaped deep groove 103 is a uniform wall thickness structure, and the ratio of the wall thickness to the groove depth of the special-shaped deep groove 103 is 1:10 to 1:5.

[0022] In this embodiment, the thin-walled ring 1 is a thin-walled part with an outer curvature and an inner taper. There are 8 25° special-shaped deep grooves and 8 Φ2.4 holes axially distributed on the large end surface. The ratio of groove wall thickness to groove depth is 1:10. The upper end wall thickness is only 0.5mm, and the average difference compared with the diameter is greater than 1:30. It is difficult to process axial special-shaped deep grooves on workpieces with large wall thickness differences. This product is suitable for the connection, fastening and sealing parts of convex lenses and outer shells, and is also an important part of this military component.

[0023] In the figure, the thin-walled special-shaped deep groove processing positioning device is used to fix the thin-walled ring 1, including a circular base 2, a circular cover 3 and a fastening screw 4, wherein: the central part of the circular base 2 is concave to form a positioning cavity 201, a positioning through hole 202 is provided at the bottom center of the positioning cavity 201, and the inner side of the positioning cavity 201 is a curved surface structure 203; the side of the circular cover 3 is a slope structure 301, a center hole 302 is provided on the circular cover 3, and the fastening screw 4 is installed in the center hole 302 and the positioning through hole 202, and the positions of the circular base 2 and the circular cover 3 are adjusted by the fastening screw 4, and the curved surface structure 203 of the positioning cavity 201 and the inclined surface structure 301 of the circular cover 3 are used to position the thin-walled ring 1. Specifically, the curved surface structure 203 is consistent with the size of the outer curved surface 101, and the size of the inner cone surface 102 is consistent with the inclined surface structure 301.

[0024] In the figure, a bottom ring groove 204 is provided at the bottom of the positioning cavity 201, and the size of the bottom ring groove 204 is consistent with the size of the small end face of the thin-walled ring 1. Specifically, the bottom ring groove 204 is used to install and position the small end face of the thin-walled ring 1. In addition, a lower ring groove 205 can also be provided at the lower outer portion of the circular base 2, and the position of the lower ring groove 205 is consistent with the position of the spacer 104 and the connecting through hole 105. The lower ring groove 205 and the positioning cavity 201 are connected through a plurality of chip leakage holes or chip leakage grooves. The chip leakage holes can be common holes such as mesh holes and waist-shaped holes, and the chip leakage grooves can be arc-shaped waist grooves, which are used to facilitate the discharge of debris generated during processing.

[0025] In actual operation, the processing positioning device uses the arc surface structure and the inclined surface structure to press the thin-walled ring up and down to achieve reliable fixation of the workpiece. The thin-walled ring, the round base and the round cover are integrated under the action of the fastening screws, which improves the rigidity of the workpiece and can fully bear the cutting force required for milling thin-walled special-shaped deep grooves. The tooling can be clamped once to complete the processing of 8 equally divided special-shaped deep grooves and holes. After using this tooling, various special-shaped deep grooves can be reliably processed in the axial direction of thin-walled workpieces, while effectively stabilizing product quality and improving production efficiency.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A thin-walled special-shaped deep groove processing positioning device, characterized in that: Used to fix a thin-walled ring (1), comprising a circular base (2), a circular cover (3) and a fastening screw (4), wherein: The thin-walled ring (1) is a thin-walled part with an outer curved surface and an inner conical surface; The middle part of the circular base (2) is concave to form a positioning cavity (201), a positioning through hole (202) is provided at the bottom center of the positioning cavity (201), and the inner side surface of the positioning cavity (201) is a curved surface structure (203); The side surface of the round cover (3) is a sloped structure (301), and a central hole (302) is formed on the round cover (3). The fastening screw (4) is installed in the central hole (302) and the positioning through hole (202), and the positions of the circular base (2) and the circular cover (3) are adjusted by the fastening screw (4), and the thin-walled ring (1) is positioned by utilizing the arc surface structure (203) of the positioning cavity (201) and the inclined surface structure (301) of the circular cover (3).

2. The thin-walled special-shaped deep groove processing positioning device according to claim 1, characterized in that: The main body of the thin-walled ring (1) comprises an outer arc surface (101) and an inner conical surface (102), wherein: a plurality of special-shaped deep grooves (103) are symmetrically provided on the large end surface of the thin-walled ring (1), a spacer (104) is provided between adjacent special-shaped deep grooves (103), and a connecting through hole (105) is provided on the spacer (104), wherein: the special-shaped deep grooves (103) are of a uniform wall thickness structure, and the ratio of the wall thickness to the groove depth of the special-shaped deep grooves (103) is 1:10 to 1:

5.

3. The thin-walled special-shaped deep groove processing positioning device according to claim 2, characterized in that: A bottom ring groove (204) is provided at the bottom of the positioning cavity (201), and the size of the bottom ring groove (204) is consistent with the size of the small end face of the thin-walled ring (1).

4. The thin-walled special-shaped deep groove processing positioning device according to claim 3, characterized in that: A lower annular groove (205) is provided at the lower outer portion of the circular base (2); the position of the lower annular groove (205) is consistent with the positions of the spacer (104) and the connecting through hole (105); the lower annular groove (205) and the positioning cavity (201) are connected via a plurality of chip leakage holes or chip leakage grooves.

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