A device for achieving uniform sealing of metal thin-walled parts

Abstract

The present invention relates to a device for sealing a metal thin-walled part uniformly, specifically, a device that supports uniform deformation of the opening of a metal thin-walled part under various installation modes, comprising a limit block, a compression body, a fastener, a spring and a pressure block, wherein the central portion of the compression body is provided with a part hole, a spring hole and a threaded hole, wherein the part hole, the spring hole and the threaded hole are arranged to be connected in sequence from left to right and penetrate the compression body, wherein the spring is welded and arranged on the fastener, and the fastener is screwed and arranged in the threaded hole; the limit block is connected to the left side of the compression body, and a through hole identical to the part hole is arranged in the middle of the limit block; and the pressure block is connected to the right side of the compression body. The device of the present invention can be used in a vertical state or a horizontal state, that is, it can be used on a variety of general-purpose machine tools and presses, and has strong versatility; the contained part can be elastically straightened, and the elastic force is adjustable, which reduces the difficulty of operation; the sealing is uniform and burr-free, and the deformation can be quantitatively controlled.

Description

Technical Field

[0001] The invention relates to a device for evenly sealing a metal thin-wall part, in particular to a device for evenly deforming the opening of the metal thin-wall part under various installation modes. Technical Background

[0002] 1. The original device is installed on a lathe, and the roller is installed on a tool holder. By moving the tool holder radially, the roller and the outer wall of the part are squeezed and deformed, thereby achieving uniform deformation and sealing of the hole.

[0003] 2. Problems with the original device:

[0004] (1) During the sealing process, the machine tool spindle drives the metal thin-walled parts to rotate. The contained parts need to be manually supported to prevent them from falling. At the same time, the tool holder needs to be operated to move radially and produce extrusion, which places high requirements on the machine tool operator.

[0005] (2) Sharp edges are likely to be produced after sealing.

[0006] (3) It is impossible to quantitatively control deformation. Summary of the invention

[0007] The object of the present invention is to overcome the above-mentioned shortcomings and provide a device for achieving uniform sealing of metal thin-walled parts, which can quickly and simply deform the opening of the part uniformly and quantitatively.

[0008] According to the technical solution of the present invention, the symmetrical double-conical grinding device for small parts includes a limit block, a compression body, a fixing piece, a spring and a pressure block. The central part of the compression body is provided with a part hole, a spring hole and a threaded hole. The part hole, spring hole and threaded hole are arranged to be connected in sequence from left to right and pass through the compression body. The spring is arranged on the fixing piece, and the fixing piece is screwed and arranged in the threaded hole; the limit block is connected to the left side of the compression body, and a through hole identical to the part hole is arranged in the middle of the limit block; the pressure block is connected to the right side of the compression body.

[0009] As a further improvement of the present invention, the diameters of the part hole, the spring hole and the threaded hole decrease in sequence.

[0010] As a further improvement of the present invention, the outer diameter of the spring is smaller than the outer diameter of the fastener.

[0011] The advantages of the present invention are:

[0012] ①The device can be used in a vertical state or a horizontal state, that is, it can be used on a variety of general-purpose machine tools and presses, and has strong versatility.

[0013] ② The contained part can be straightened elastically, and the elastic force is adjustable, which reduces the difficulty of operation.

[0014] ③The sealing is uniform and burr-free, and the deformation can be quantitatively controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the overall structure of the present invention.

[0016] Explanation of the accompanying reference numerals: 1-limiting block, 2-enclosed part, 3-compression body, 4-spring, 5-fastening part, 6-pressing block, 7-part, 8-part hole, 9-spring hole, 10-threaded hole, 11-through hole. DETAILED DESCRIPTION

[0017] The present invention will be further described below according to the drawings.

[0018] like Figure 1 As shown, a device for achieving uniform sealing of metal thin-walled parts comprises a limit block 1, a compression body 3, a fastener 5, a spring 4 and a pressure block 6. The central portion of the compression body 3 is provided with a part hole 8, a spring hole 9 and a threaded hole 10. The part hole 8, the spring hole 9 and the threaded hole 10 are arranged to be connected in sequence from left to right and penetrate the compression body 3. The spring 4 is welded on the fastener 5, and the fastener 5 is screwed in the threaded hole 10. The limit block 1 is connected to the left side of the compression body 3, and a through hole 11 identical to the part hole 8 is arranged in the middle of the limit block 1. The pressure block 6 is connected to the right side of the compression body 3.

[0019] Furthermore, the diameters of the part hole 8, the spring hole 9 and the threaded hole 10 decrease in sequence.

[0020] Furthermore, the outer diameter of the spring 4 is smaller than the outer diameter of the fixing member 5 .

[0021] The working principle of the present invention is as follows: the whole set of devices can be used in a vertical state or a horizontal state, that is, the device can be placed on the workbench of a press or clamped with a lathe jaw for use; first, insert the limit block 1 into the part 7, put the contained part 2 into the part hole 8, weld the spring 4 and the fastener 5 into one, screw the fastener 5 with the spring 4 into the compression body 3, adjust the screw-in depth of the thread to control the size of the spring force, ensure that the spring 4 always presses the contained part 2 during the press-fitting process, and slowly insert the compression body 3 into the part 7 under the guidance of the front end orifice. At this time, the limit block 1 does not contact the compression body 3. Through the movement of the machine tool tailstock or the press, the pressing force is applied to the pressing block 6. The compression body 3 moves toward the direction of the part 7 under the action of the force. When the compression body 3 fits the limit block 1, it is pressed into place. By adjusting the thickness of the limit block 1, the deformation of the part orifice can be adjusted to limit the movement range of the contained part 2 in the part hole 8.

Claims

1. A device for achieving uniform sealing of thin-walled metal parts, characterized in that: The device comprises a limit block (1), a compression body (3), a fixing member (5), a spring (4) and a pressure block (6); the center of the compression body (3) is provided with a part hole (8), a spring hole (9) and a threaded hole (10); the part hole (8), the spring hole (9) and the threaded hole (10) are arranged to be connected in sequence from left to right and to penetrate the compression body (3); the spring (4) is arranged on the fixing member (5), and the fixing member (5) is screwed and arranged in the threaded hole (10); the limit block (1) is connected to the left side of the compression body (3); the middle of the limit block (1) is provided with a through hole (11) which is the same as the part hole (8); the pressure block (6) is connected to the right side of the compression body (3); The compression deformable body (3) moves toward the part (7) under the action of the force, and when the compression deformable body (3) fits the limit block (1), it is pressed into place.

2. A device for achieving uniform sealing of thin-walled metal parts as claimed in claim 1, characterized in that: The diameters of the part hole (8), the spring hole (9) and the threaded hole (10) decrease in sequence.

3. A device for achieving uniform sealing of metal thin-walled parts as claimed in claim 1, characterized in that: The outer diameter of the spring (4) is smaller than the outer diameter of the fixing member (5).

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