A tool for processing inner support of cabin body

Abstract

A cabin body turning inner support tool, comprising a body (1), a left end expansion sleeve (2), a right end expansion sleeve (3), a positioning core shaft (4), a tapered pressure block (5), a pressure cover (6), a positioning ring (7), a tightening sleeve (8), a screw (9), a pad (10), a plurality of springs I (11), a plurality of springs II (12), and a hexagonal flange nut (18); the body (1) is connected to the positioning core shaft (4) by a hexagon socket screw II (14); the positioning ring (7) is sleeved on the positioning core shaft (4), the spring I (11) is installed in a circumferential through hole of the positioning ring (7), and the left end expansion sleeve (2) is then sleeved on the positioning core shaft (4). The tool of the present invention makes the two end faces of the cabin body not connected to the tool or other objects. Therefore, after the tool is installed on a lathe, the outer surface and both end faces of the cabin body can be turned.

Description

Technical Field

[0001] The invention discloses a cabin body lathe processing inner support tool, which relates to an inner support tool in cabin body processing. Background Art

[0002] The cabin of a magnesium-lithium alloy is a cylindrical structure. The verticality of the front and rear end faces and the coaxiality of the outer circle of the cabin have high machining accuracy requirements and it is a thin-walled structure. The traditional lathe processing tooling adopts a pressure plate and pull plate clamping method. The front and rear end faces and the outer circle of the cabin cannot be processed and formed at one time. Therefore, an internal support tooling is designed to ensure the machining accuracy of the position, control deformation during the processing, and improve the processing efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide a cabin body lathe processing inner support tooling to achieve cabin body lathe processing accuracy requirements and deformation control.

[0004] A cabin lathe inner support tooling, comprising a body 1, a left end expansion sleeve 2, a right end expansion sleeve 3, a positioning mandrel 4, a tapered pressure block 5, a pressure cover 6, a positioning ring 7, a tightening sleeve 8, a screw 9, a pad 10, a plurality of springs I 11, a plurality of springs II 12, and a hexagonal flange nut 18; the body 1 is connected to the positioning mandrel 4 by a hexagon socket screw II 14; the positioning ring 7 is sleeved on the positioning mandrel 4, the spring I 11 is installed in the circumferential through hole of the positioning ring 7, and then the left end expansion sleeve 2 is sleeved on the positioning mandrel 4, the internal threaded cylindrical pin I 17 constrains the left end expansion sleeve 2 to rotate relatively on the positioning mandrel 4, and the tightening sleeve 8 is sleeved On the positioning core shaft 4, the spring II 12 is installed in the circumferential countersunk hole of the top sleeve 8, and then the pad 10 is sleeved on the positioning core shaft 4 and presses the spring II 12, the tapered pressure block 5 is sleeved on the positioning core shaft 4, the set screw I 15 and the set screw II 16 constrain the rotation of the tapered pressure block 5 relative to the positioning core shaft 4, the right end expansion sleeve 3 is sleeved on the tapered pressure block 5, and its rotation relative to the tapered pressure block 5 is constrained by the internal threaded cylindrical pin II 27, the screw 9 is connected to the positioning core shaft 4 by the hexagon socket screw I 13, the pressure cover 6 is sleeved on the screw 9, and the hexagonal flange nut 18 is threaded into the screw 9.

[0005] When in use, the lathe inner support tooling is assembled in the inner cavity of the cabin, the positioning ring 7 contacts and positions with the inner cavity stop 201 of the cabin body 20, and the hexagonal flange nut 18 is tightened by hand to drive the gland 9 to move forward, and the gland 9 pushes the tapered pressure block 5 forward to make the right end expansion sleeve 3 radially expand and tighten the inner cavity of the cabin, and at the same time, the tapered pressure block 5 moves forward to push the pad 10 to compress the spring II 12 to move the top tightening sleeve 8 forward, and the top tightening sleeve 8 moves forward to push the left end expansion sleeve 2 forward to make it radially expand and tighten the inner cavity of the cabin, and the left end expansion sleeve 2 and the right end expansion sleeve 3 tighten the inner cavity of the cabin to ensure the machining outer circle dimensional accuracy and deformation control. After the processing is completed, the hexagonal flange nut 18 is unscrewed, all forward movements are returned to their positions, the left end expansion sleeve 2 and the right end expansion sleeve 3 are radially reduced, and the cabin body can be removed.

[0006] The plurality of springs Ⅰ11 are evenly distributed in numbers of 4 to 10 on the positioning core shaft 4 .

[0007] The plurality of springs II 12 are evenly distributed on the top tightening sleeve 8 in a number of 6 to 12.

[0008] Advantages of the present invention:

[0009] The present invention changes the inherent thinking of the prior art that one end of the cabin body is fixedly connected to the lathe when machining the cabin body. The tooling of the present invention enables the two end faces of the cabin body to be not connected to the tooling or other objects. Therefore, after the tooling is installed on the lathe, the outer surface and both end faces of the cabin body can be machined. Therefore, the prior art cabin body machining process that at least requires reinstalling it on the lathe for positioning is changed. Therefore, the present invention greatly improves the accuracy of cabin body machining and saves the time used for reinstallation and positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 , a main sectional view of the present invention;

[0011] Figure 2 , Figure 1 AA section view;

[0012] Figure 3 , schematic diagram of the use status of the present invention.

[0013] Markings in the figure are: 1 is the main body, 2 is the left end expansion sleeve, 3 is the right end expansion sleeve, 4 is the positioning mandrel, 5 is the tapered pressure block, 6 is the pressure cover, 7 is the positioning ring, 8 is the top tightening sleeve, 9 is the screw, 10 is the pad, 11 is the spring I, 12 is the spring II, 13 is the hexagon socket screw I, 14 is the hexagon socket screw II, 15 is the set screw I, 16 is the set screw II1, 17 is the internal threaded cylindrical pin I, 18 is the hexagonal flange nut, 20 is the cabin body, 27 is the internal threaded cylindrical pin II, and 201 is the inner cavity stop. DETAILED DESCRIPTION

[0014] The purpose of the present invention is to provide a cabin body lathe inner support tooling to achieve the machining accuracy of thin-walled cabin body lathe machining and deformation control during the machining process.

[0015] like Figure 1 The shown cabin body turning inner support tooling comprises a body 1, a left end expansion sleeve 2, a right end expansion sleeve 3, a positioning mandrel 4, a tapered pressure block 5, a pressure cover 6, a positioning ring 7, a tightening sleeve 8, a screw 9, a pad 10, a spring I 11, a spring II 12, and a hexagonal flange nut 18; the body 1 is connected to the positioning mandrel 4 by a hexagon socket screw II 14; the positioning ring 7 is sleeved on the positioning mandrel 4, the spring I 11 is installed in the circumferential through hole of the positioning ring 7, and then the left end expansion sleeve 2 is sleeved on the positioning mandrel 4, the internal threaded cylindrical pin I 17 constrains the left end expansion sleeve 2 to rotate relatively on the positioning mandrel 4, and the tightening sleeve 8 is sleeved On the positioning core shaft 4, the spring II 12 is installed in the circumferential countersunk hole of the top sleeve 8, and then the pad 10 is sleeved on the positioning core shaft 4 and the spring II 12 is pressed, the tapered pressure block 5 is sleeved on the positioning core shaft 4, the set screw I 15 and the set screw II 16 constrain the rotation of the tapered pressure block 5 relative to the positioning core shaft 4, the right end expansion sleeve 3 is sleeved on the tapered pressure block 5, and its rotation relative to the tapered pressure block 5 is constrained by the internal threaded cylindrical pin II 27, the screw 9 is connected to the positioning core shaft 4 by the hexagon socket screw I 13, the pressure cover 6 is sleeved on the screw 9, and the hexagonal flange nut 18 is threaded into the screw 9.

[0016] When in use, the lathe inner support tooling is assembled in the inner cavity of the cabin, the positioning ring 7 contacts and positions with the inner cavity stop 201 of the cabin body 20, and the hexagonal flange nut 18 is tightened by hand to drive the gland 9 to move forward, and the gland 9 pushes the tapered pressure block 5 forward to make the right end expansion sleeve 3 radially expand and tighten the inner cavity of the cabin, and at the same time, the tapered pressure block 5 moves forward to push the pad 10 to compress the spring II 12 to move the top tightening sleeve 8 forward, and the top tightening sleeve 8 moves forward to push the left end expansion sleeve 2 forward to make it radially expand and tighten the inner cavity of the cabin, and the left end expansion sleeve 2 and the right end expansion sleeve 3 tighten the inner cavity of the cabin to ensure the machining outer circle dimensional accuracy and deformation control. After the processing is completed, the hexagonal flange nut 18 is unscrewed, all forward movements are returned to their positions, the left end expansion sleeve 2 and the right end expansion sleeve 3 are radially reduced, and the cabin body can be removed.

[0017] The plurality of springs Ⅰ11 are evenly distributed in numbers of 4 to 10 on the positioning core shaft 4 .

[0018] The plurality of springs II 12 are evenly distributed on the top tightening sleeve 8 in a number of 6 to 12.

[0019] A cabin lathe inner support tool comprises a main body, a left end expansion sleeve, a right end expansion sleeve, a positioning mandrel, a taper pressure block, a pressure cover, a positioning ring, a tightening sleeve, a screw, a pad, a spring I, a spring II, a hexagonal flange nut and other standard parts.

[0020] The body is connected to the positioning mandrel by a hexagon socket cylindrical screw. The positioning ring, left end expansion sleeve, top tightening sleeve, pressure cover, right end expansion sleeve, and taper pressing block are sleeved on the positioning mandrel in sequence. The spring I is installed in the 10 through holes in the circumferential direction of the positioning ring to achieve flexible contact between the left end expansion sleeve and the positioning ring. The spring II is in the 12 countersunk holes in the circumferential direction of the top tightening sleeve to achieve flexible contact between the pad and the top tightening sleeve. The screw is connected to the positioning mandrel by a hexagon socket screw, the pressure cover is sleeved on the screw and pressed into the ring groove of the taper pressing block, and the hexagonal flange nut is installed on the screw.

[0021] When in use, assemble the lathe inner support tooling in the cabin inner cavity, contact and position the positioning ring with the cabin inner cavity stopper, tighten the hexagonal flange nut by hand to drive the gland to slide, and the gland pushes the tapered pressure block forward to make the right end expansion sleeve radially expand and tighten the cabin inner cavity. At the same time, the tapered pressure block moves forward to push the pad to tighten the spring 2 to move the top tightening sleeve forward, and the top tightening sleeve moves forward to push the left end expansion sleeve forward to make it radially expand and tighten the cabin inner cavity. The cabin inner cavity is tightened to ensure the machining outer circle dimensional accuracy and deformation control. After the processing is completed, unscrew the hexagonal flange nut, all forward movements return to their positions, the left end expansion sleeve and the right end expansion sleeve are radially reduced, and the cabin is removed.

[0022] In order to achieve the machining accuracy requirements and deformation control of magnesium-lithium alloy thin-walled cabin bodies, the present invention designs and proposes a cabin body machining inner support tooling. The tooling realizes the one-time clamping of the front and rear end faces and the outer circle machining of the cabin body through the design of radial transmission of the wedge-shaped cone block shaft and the expansion sleeve tensioning structure, thereby ensuring the verticality of the front and rear end faces of the cabin body and the coaxiality of the outer circle machining accuracy requirements.

Claims

1. A cabin lathe inner support tool, comprising a body (1), a left-end expansion sleeve (2), a right-end expansion sleeve (3), a positioning mandrel (4), a tapered pressure block (5), a pressure cover (6), a positioning ring (7), a tightening sleeve (8), a screw (9), a backing plate (10), a plurality of springs I (11), a plurality of springs II (12), and a hexagonal flange nut (18); the body (1) is connected to the positioning mandrel (4) by a hexagon socket screw II (14); the positioning ring (7) is sleeved on the positioning mandrel (4), the spring I (11) is installed in a circumferential through hole of the positioning ring (7), and then the left-end expansion sleeve (2) is sleeved on the positioning mandrel (4), the internal threaded cylindrical pin I (17) constrains the left-end expansion sleeve (2) to rotate relatively on the positioning mandrel (4), and the tightening sleeve (8) is sleeved on the positioning mandrel (4), the spring II (12) is installed in the circumferential countersunk hole of the top sleeve (8), and then the pad (10) is sleeved on the positioning mandrel (4) and presses the spring II (12), the taper pressing block (5) is sleeved on the positioning mandrel (4), the set screw I (15) and the set screw II (16) constrain the rotation of the taper pressing block (5) relative to the positioning mandrel (4), the right end expansion sleeve (3) is sleeved on the taper pressing block (5), and its rotation relative to the taper pressing block (5) is constrained by the internal thread cylindrical pin II (27), the screw rod (9) and the positioning mandrel (4) are connected by the hexagon socket screw I (13), the pressure cover (6) is sleeved on the screw rod (9), and the hexagonal flange nut (18) is screwed into the screw rod (9); When in use, the lathe inner support tooling is assembled in the inner cavity of the cabin, the positioning ring (7) contacts and positions the inner cavity stop (201) of the cabin body (20), and the hexagonal flange nut (18) is tightened by hand to drive the pressure cover (6) to move forward, and the pressure cover (6) pushes the tapered pressure block (5) forward to make the right end expansion sleeve (3) expand radially and tighten the inner cavity of the cabin body. At the same time, the tapered pressure block (5) moves forward to push the pad (10) to compress the spring II (12) to make the top tightening sleeve (8) move forward, and the top tightening sleeve (8) moves forward to push the left end expansion sleeve (2) forward to make it expand radially and tighten the inner cavity of the cabin body. The left end expansion sleeve (2) and the right end expansion sleeve (3) tighten the inner cavity of the cabin body to ensure the machining outer circle dimension accuracy and deformation control; after the processing is completed, the hexagonal flange nut (18) is unscrewed, all the forward movements are returned to their original positions, the left end expansion sleeve (2) and the right end expansion sleeve (3) are radially reduced, and the cabin body is removed.

2. A cabin lathe inner support tooling according to claim 1, characterized in that: The plurality of springs I (11) are evenly distributed in a number of 4 to 10 on the positioning core shaft (4).

3. A cabin lathe inner support tooling according to claim 1 or 2, characterized in that: The plurality of springs II (12) are evenly distributed on the tightening sleeve (8) in a number of 6 to 12.

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