Oil pressure clamping device for machining annular groove of sabot

Abstract

The utility model belongs to the technical field of manufacturing and machining, and particularly relates to an oil pressure clamping device for machining an annular groove of a sabot. The device comprises a sliding column, a sealing ring, a body, a thin-wall sleeve and an end cover. The oil pressure clamping device provided by the utility model is provided with oil ways which respectively act on the three petals of the sabot, so that the clamping stability of the sabot is improved to a great extent. Clamping and loosening of the bullet support can be achieved only by pushing the sliding column to slide inwards and outwards in one-time assembly and disassembly, operation is easy to achieve, and labor efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to manufacturing and processing technical field, concretely relates to a kind of oil pressure clamping device for processing elastic support annular groove. BACKGROUND

[0002] Elastic support is mainly to make projectile obtain greater kinetic energy after cannon bore, to have more excellent damage effect, and annular groove is one of the most critical, most important processes in elastic support processing.

[0003] When annular groove is processed, three pieces of elastic support are point-welded together and installed on lathe by clamping device, and required shape and size are processed according to drawing requirements.The clamping mode mainly includes mechanical clamping and hydraulic clamping.

[0004] Traditional mechanical clamping mode is tedious and time-consuming, and elastic support is easily damaged, and it is easy to loosen during processing.Hydraulic clamping is easy to disassemble, and elastic support is not easy to damage, and has higher stability.

[0005] But hydraulic clamping needs corresponding tooling, and there is lack of such tooling at present, so it is necessary to design oil pressure clamping device to overcome the above problems. INVENTION CONTENTS

[0006] The utility model aims at providing a kind of clamping device that is easy to disassemble and has higher stability, so that elastic support has higher processing precision and stability when annular groove is processed before and after.

[0007] The technical scheme adopted by the utility model is as follows:

[0008] A kind of oil pressure clamping device for processing elastic support annular groove, including slide column 1, sealing ring 2, body 3, thin-walled sleeve 4 and end cover 5;

[0009] The slide column 1 is cylindrical body, and recess is processed on the side of slide column 1 column body;Sealing ring 2 is installed in the corresponding recess in slide column 1, and sealing effect is achieved;

[0010] The body 3 is cylindrical shell structure, one side is fixedly connected connecting disc, and the other side is open;Connecting disc center is equipped with slide column hole, for installing slide column 1, and the length of slide column 1 is less than the length of slide column hole;Oil injection hole and oil outlet hole are arranged on the cylindrical shell cylinder wall, and hollow oil passage is arranged in the inside of cylinder wall, and slide column hole, oil injection hole and oil outlet hole are communicated with oil passage;The inside of body 3 is two-stage stepped cylindrical through hole;

[0011] The thin-wall sleeve 4 is a cylindrical shell, and the outer diameter of the thin-wall sleeve 4 matches the larger inner diameter of the two-stage stepped cylindrical through hole of the body 3; the front and rear ends of the outer side of the cylinder wall of the thin-wall sleeve 4 are provided with annular grooves; the inner wall of the oil passage of the body 3 corresponding to the thin-wall sleeve 4 is provided with an opening, so that the oil in the oil passage can flow into the groove; the material of the thin-wall sleeve 4 is an elastic deformation material; the groove is connected with the elastic support;

[0012] The end cover 5 is installed at the other opening end of the body 3, and plays the role of axial positioning and dustproof sealing.

[0013] Preferably, the body 3 is internally provided with three oil passages, and the included angle of each oil passage with the center line is 120°.

[0014] Further, the three oil passages correspond to the three petals of the elastic support respectively, so as to improve the clamping stability.

[0015] Preferably, the length of the groove at the front and rear ends of the thin-wall sleeve 4 is 36mm, and the depth is 6.5mm.

[0016] Further, the oil passage hole diameter is 9mm.

[0017] Further, the groove of the slide column 1 has a width of 3.2mm and a depth of 2mm.

[0018] Further, the groove of the slide column 1 is provided with five.

[0019] Preferably, the body 3 is provided with bolt holes symmetrically on the connecting disc, which is used for being connected with the lathe flange plate.

[0020] Preferably, a rectangular window is provided around one side of the connecting disc of the body 3, which is used for observing the internal working state of the oil pressure clamping device, and is beneficial to reducing the self-weight of the clamp.

[0021] Preferably, after the end cover 5 is installed, the center of the end cover 5 is aligned with the center of the tailstock center of the lathe.

[0022] The utility model discloses the beneficial effects obtained:

[0023] The oil pressure clamping device designed by the utility model opens the oil passage, and acts on the three petals of the elastic support respectively, so that the clamping stability of the elastic support is greatly improved. Once the installation and disassembly are completed, the slide column is pushed to slide inward and outward to realize the clamping and loosening of the elastic support, so that the operation is simple and easy to realize, and the labor efficiency is greatly improved. DRAWINGS

[0024] Fig. 1 The utility model discloses the elastic support schematic view;

[0025] Fig. 2 The two-dimensional structure schematic view of the utility model embodiment 1;

[0026] Fig. 3 The three-dimensional structure explosion map of the embodiment 1 of the utility model;

[0027] Fig. 4 The three-dimensional effect drawing of the embodiment 1 of the utility model after assembly. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the utility model example more clear, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model example. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0029] Embodiment 1

[0030] As Figs. 1-4 The utility model discloses a hydraulic clamping device for processing elastic support annular groove, including slide column 1, sealing ring 2, body 3, thin wall sleeve 4 and end cover 5.

[0031] The slide column 1 is cylindrical, and the slide column 1 body side is processed with recess; The sealing ring 2 is installed in the corresponding recess in the slide column 1, and plays a sealing role.

[0032] The body 3 is a cylindrical shell structure, one side is fixedly connected with the connecting disc, and the other side is an opening; The connecting disc center is provided with a slide hole for installing the slide column 1, and the length of the slide column 1 is less than the length of the slide hole; The cylindrical shell wall is provided with an oil injection hole and an oil outlet hole, and the inside of the cylindrical shell wall is provided with a hollow oil passage, and the slide hole, the oil injection hole and the oil outlet hole are communicated with the oil passage; The inside of the body 3 is a two-stage stepped cylindrical hole; The connecting disc of the body 3 is symmetrically provided with a bolt hole for connecting with the flange plate of the lathe. The connecting disc side of the body 3 is provided with a rectangular window, which is used for observing the internal working state of the hydraulic clamping device and is conducive to reducing the weight of the clamp. Three oil passages are opened in the body 3, and the included angle between each oil passage and the center line is 120 °. The three oil passages correspond to three petals of the clamping elastic support respectively, so as to improve the clamping stability.

[0033] The thin wall sleeve 4 is a cylindrical shell, and the outer diameter of the thin wall sleeve 4 matches the larger one of the two-stage stepped cylindrical hole in the body 3; The front and rear ends of the outer side of the thin wall sleeve 4 are provided with annular notches; The inner wall of the oil passage of the body 3 at the corresponding position of the thin wall sleeve 4 is opened, so that the oil in the oil passage can flow into the notch; The material of the thin wall sleeve 4 is an elastic deformation material; The notch is connected with the elastic support.

[0034] The end cover 5 is installed on the other side opening end of the body 3, and plays the role of axial positioning and dustproof sealing.

[0035] The length of the slot at the front and back ends of the thin-wall sleeve 4 is 36mm, and the depth is 6.5mm. The oil passage diameter is 9mm. The width of the groove of the slide column 1 is 3.2mm, and the depth is 2mm. The slide column 1 groove is provided with five.

[0036] After the end cover 5 is installed, the center of the end cover 5 is aligned with the center of the tailstock of the lathe.

[0037] The operation process is as follows:

[0038] (1) The end of the slide column 1 is connected and fixed to the flange plate by bolts and is installed on the lathe;

[0039] (2) The other end is aligned with the center of the end cover 5 of the lathe;

[0040] (3) The spring holder is installed in the clamp from one end of the end cover 5;

[0041] (3) The oil is injected into the body 3 through the oil injection hole, and the oil injection hole is tightened;

[0042] (4) The slide column 1 is pushed to slide inward by the lathe, the oil pressure in the body is increased, the thin-wall sleeve 4 is elastically deformed, and the effect of clamping the spring holder is achieved.

[0043] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it. Although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalents. The modifications or replacements do not change the essence of the corresponding technical solutions, and do not deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An oil pressure clamping device for machining a cartridge case annular groove, characterized by, It comprises a slide column (1), a sealing ring (2), a body (3), a thin-walled sleeve (4) and an end cover (5). The slide column (1) is a cylinder, and a groove is formed on the side of the cylinder of the slide column (1); the sealing ring (2) is installed in the corresponding groove of the slide column (1) to play a sealing role. The body (3) is a cylindrical shell structure, one side of which is fixedly connected with a connecting disc, and the other side is an opening; the connecting disc is provided with a slide column hole in the center for installing the slide column (1), and the length of the slide column (1) is less than the length of the slide column hole; the cylindrical shell is provided with an oil injection hole and an oil outlet hole on the cylinder wall, and a hollow oil passage is arranged in the cylinder wall; the slide column hole, the oil injection hole and the oil outlet hole are communicated with the oil passage; the inside of the body (3) is a two-step cylindrical through hole; The thin-walled sleeve (4) is a cylindrical shell, and the outer diameter of the thin-walled sleeve (4) matches the larger inner diameter of the two-step cylindrical through hole of the body (3); annular notches are formed at the front and rear ends of the outer side of the cylinder wall of the thin-walled sleeve (4); the inner wall of the oil passage of the body (3) at the corresponding position of the thin-walled sleeve (4) is opened, so that the oil in the oil passage can flow into the notches; the material of the thin-walled sleeve (4) is an elastic deformation material; the notches are connected with elastic supports; The end cover (5) is installed at the other side opening end of the body (3), and plays the roles of axial positioning and dustproof sealing.

2. The hydraulic clamping device for machining the annular groove of the bullet carrier according to claim 1, characterized in that, Three oil passages are formed in the inside of the body (3), and the included angle between each oil passage and the center line is 120°.

3. The hydraulic clamping device for machining the annular groove of the bullet carrier according to claim 2, characterized in that, The three oil passages correspond to three petals of the elastic support respectively.

4. The hydraulic clamping device for machining the annular groove of the bullet carrier according to claim 1, wherein The lengths of the notches at the front and rear ends of the thin-walled sleeve (4) are 36mm, and the depths are 6.5mm.

5. The hydraulic clamping device for machining the annular groove of the bullet carrier according to claim 4, characterized in that, The oil passage diameter is 9mm.

6. The hydraulic clamping device for machining the annular groove of the bullet carrier according to claim 5, wherein The groove width of the slide column (1) is 3.2mm, and the depth is 2mm.

7. The hydraulic clamping device for machining the annular groove of the bullet carrier according to claim 6, characterized in that, The slide column (1) is provided with five grooves.

8. The hydraulic clamping device for machining the annular groove of the bullet carrier according to claim 1, wherein Symmetrical bolt holes are formed on the connecting disc of the body (3) for connecting with the flange plate of the lathe.

9. The hydraulic clamping device for machining the annular groove of the bullet carrier according to claim 1, wherein A rectangular window is formed around one side of the connecting disc of the body (3).

10. The hydraulic clamping device for machining the annular groove of the bullet carrier according to claim 1, wherein After the end cover (5) is installed, the center of the end cover (5) is aligned with the center of the center of the lathe.

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