Thin-wall workpiece machining tool

Abstract

The utility model discloses a thin-wall workpiece machining tool which comprises an inner pipe, a fixing part, a supporting part and a thin-wall workpiece body, the thin-wall workpiece body is embedded in the outer portion of the inner pipe, the fixing part is arranged on the inner pipe, the fixing part comprises a connecting pressing sleeve embedded in the outer wall of the inner pipe and fixing screws arranged on the periphery of the connecting pressing sleeve, and the supporting part is arranged on the connecting pressing sleeve. The supporting part is nested outside the inner pipe, the supporting part comprises a spacer sleeve, a supporting taper sleeve a, a supporting sleeve and a supporting taper sleeve b which are sequentially nested outside the inner pipe, and a thin-wall workpiece body is nested outside the supporting part. By arranging the supporting part, one end of the thin-wall workpiece body can be connected with the fixing part, so that the thin-wall workpiece body is nested outside the supporting part, and the interior of the thin-wall workpiece body can be supported when the thin-wall workpiece body is machined; and different thin-wall workpiece bodies can be supported by replacing different supporting parts in a sliding manner.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary tooling, in particular to a thin-wall workpiece processing tooling. Background Art

[0002] In the field of mechanical processing, there is often a cylindrical thin-walled long tube workpiece. The thin-walled long tube workpiece has a special structure. The thin-walled long tube workpiece, especially the brittle hollow thin-walled long tube workpiece with high material brittleness, low strength and small cross-sectional size.

[0003] During the turning process of existing hollow thin-walled long cylindrical workpieces, due to the thin outer wall of the workpiece and the certain length of the workpiece, the greater the runout between the middle and the end, the easier it is for the thin-walled workpiece body to break, resulting in processing difficulties. Usually, an internal sleeve head is required to support the inner tube tooling inside the workpiece, but the existing tooling has a fixed outer structure and can only be used for workpieces with a single structure. Utility Model Content

[0004] The utility model aims to provide a thin-wall workpiece processing tool to solve the problem that the existing tooling mentioned in the background technology has a fixed outer structure and can only be used for workpieces with a single structure.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thin-walled workpiece processing tool, comprising an inner tube, a fixing part, a supporting part and a thin-walled workpiece body:

[0006] A thin-walled workpiece body is nested on the outside of the inner tube, the fixing part is arranged on the inner tube, the fixing part is nested on the outside of the inner tube, the outer wall of the fixing part abuts against the inner wall of the thin-walled workpiece body, the fixing part includes a connecting sleeve nested on the outer wall of the inner tube and fixing screws arranged around the connecting sleeve, the supporting part is nested on the outside of the inner tube, the end of the supporting part abuts against the front end of the fixing part, the supporting part includes a spacer sleeve, a supporting cone sleeve a, a supporting sleeve and a supporting cone sleeve b which are sequentially nested on the outside of the inner tube, a thin-walled workpiece body is nested on the outside of the supporting part, the supporting part abuts against the inner wall of the thin-walled workpiece body to support the inner wall of the thin-walled workpiece body.

[0007] By adopting the above technical solution, one end of the thin-walled workpiece body can be connected to the fixing part so that the thin-walled workpiece body can be nested outside the supporting part, so that the inside of the thin-walled workpiece body can be supported during processing, thereby preventing the thin-walled workpiece body from being damaged due to lack of internal support during processing. By sliding and replacing different supporting parts, different thin-walled workpiece bodies can be supported.

[0008] Preferably, the inner tube comprises a fixing nut a threadedly arranged at one end of the inner tube and a fixing nut b threadedly arranged at the other end of the inner tube.

[0009] By adopting the above technical solution, the fixing part and the supporting part can be fixed on the inner tube by the fixing nut a and the fixing nut b.

[0010] Preferably, the fixing part includes a connecting sleeve slidably nested in the outer wall of the inner tube and a limit screw with a thread arranged on one side of the connecting sleeve. There are four limit screws, and the four limit screws are rotationally symmetrical around the axial center of the inner tube. The limit screws abut against the fixing nut a.

[0011] By adopting the above technical solution, the connection sleeve can be limited by the abutment between the limit screw and the fixing nut a to prevent it from rotating around the inner tube.

[0012] Preferably, the fixing portion comprises a plurality of connection holes provided around the connection sleeve and fixing screws arranged in the connection holes, and the fixing screws pass through the connection holes and are threadedly connected to a thread groove provided at one end of the thin-walled workpiece body.

[0013] By adopting the above technical solution, the thin-walled workpiece body can be fixed to one end of the connecting sleeve by arranging a fixing screw.

[0014] Preferably, the support portion comprises a spacer sleeve and a support sleeve nested outside the inner tube, and the spacer sleeve and the support sleeve are rigid metal pipes.

[0015] By adopting the above technical solution, the inside of the thin-walled workpiece body can be supported during processing.

[0016] Preferably, the support portion comprises a support cone sleeve a and a support cone sleeve b nested outside the inner tube, the support cone sleeve a and the support cone sleeve b are made of polyethylene, and the outer walls of the support cone sleeve a and the support cone sleeve b are provided with inclined surfaces that fit the inner wall of the thin-walled workpiece body.

[0017] By adopting the above technical solution, the inner wall of the thin-walled workpiece body can be fitted to play a supporting role, while preventing the thin-walled workpiece body from being in hard contact with the supporting part, thereby preventing the thin-walled workpiece body from being damaged.

[0018] Preferably, the support portion includes a spacer tube, a support cone sleeve a, a support sleeve and a support cone sleeve b which are sequentially nested outside the inner tube, and the spacer tube, the support cone sleeve a, the support sleeve and the support cone sleeve b and the inner tube are slidably connected.

[0019] By adopting the above technical solution, different supporting parts can be replaced by sliding to provide support for different thin-walled workpiece bodies.

[0020] Compared with the prior art, the beneficial effect of the utility model is that by providing a supporting part, one end of the thin-walled workpiece body can be connected to the fixing part so that the thin-walled workpiece body can be nested outside the supporting part, so that the inside of the thin-walled workpiece body can be supported during processing, thereby preventing the thin-walled workpiece body from being damaged due to lack of internal support during processing, and different supporting parts can be replaced by sliding to provide support for different thin-walled workpiece bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of this application;

[0022] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this application;

[0023] Figure 3 This is a schematic diagram of the connection structure between the inner tube and the fixing part of the present application;

[0024] Figure 4 This is a schematic diagram of the internal tube structure of this application;

[0025] Figure 5 For this application Figure 2 Enlarged structural diagram at A in the middle.

[0026] In the figure: 1. inner tube; 101. fixing nut a; 102. fixing nut b; 2. fixing part; 201. connecting sleeve; 202. connecting hole; 203. fixing screw; 204. limit screw; 3. supporting part; 301. spacer sleeve; 302. supporting cone sleeve a; 303. supporting sleeve; 304. supporting cone sleeve b; 4. thin-walled workpiece body; 401. threaded groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1

[0029] See also Figure 1 , Figure 2 and Figure 5 The utility model provides a technical solution: a thin-walled workpiece processing tool, comprising an inner tube 1, a fixing part 2, a supporting part 3 and a thin-walled workpiece body 4:

[0030] The inner tube 1 is a metal round tube, and threads are provided at both ends of the inner tube 1, and a fixing nut a101 and a fixing nut b102 are respectively threadedly connected at the two ends, and two fixing nuts a101 and b102 are each provided. The fixing part 2 is provided on the inner tube 1, and the fixing part 2 is nested in the outside of the inner tube 1. The outer wall of the fixing part 2 abuts against the inner wall of the thin-walled workpiece body 4, and the fixing part 2 includes a connecting sleeve 201 nested in the outer wall of the inner tube 1, and four limiting screws 204 are provided at one end of the connecting sleeve 201. The limiting screws 204 and the connecting sleeve 201 are threadedly connected, and the four limiting screws 204 are rotationally symmetrical around the axial center of the inner tube 1. The limiting screws 204 abut against the fixing nut a101, and the limiting screws 204 can abut against the fixing nut a101, so as to limit the connecting sleeve 201 to prevent it from rotating around the inner tube 1, and a number of limiting screws 204 are provided around the connecting sleeve 201. There are a plurality of connecting holes 202, in which fixing screws 203 are arranged. The fixing screws 203 pass through the connecting holes 202 and are threadedly connected with the thread groove 401 arranged at one end of the thin-walled workpiece body 4. The thin-walled workpiece body 4 can be fixed to one end of the connecting sleeve 201 by setting the fixing screws 203. The supporting part 3 is nested on the outside of the inner tube 1. The supporting part 3 includes a spacer sleeve 301, a supporting cone sleeve a302, a supporting sleeve 303 and a supporting cone sleeve b304 which are nested on the outside of the inner tube 1 in sequence. The thin-walled workpiece body 4 is nested on the outside of the supporting part 3. The supporting part 3 abuts against the inner wall of the thin-walled workpiece body 4 to support the inner wall of the thin-walled workpiece body 4. By connecting one end of the thin-walled workpiece body 4 to the fixing part 2, the thin-walled workpiece body 4 is nested on the outside of the supporting part 3, so that the inside of the thin-walled workpiece body 4 can get a support during processing, thereby preventing the thin-walled workpiece body 4 from being damaged due to lack of internal support during processing.

[0031] Embodiment 2

[0032] See also Figure 2 , Figure 3 and Figure 4 , the utility model provides a technical solution: a thin-wall workpiece processing tool, including a support portion 3, a spacer sleeve 301, a support cone sleeve a302, a support sleeve 303 and a support cone sleeve b304;

[0033] The support part 3 is nested on the outside of the inner tube 1, and the end of the support part 3 is abutted against the front end of the fixing part 2. A spacer sleeve 301, a support cone sleeve a302, a support sleeve 303 and a support cone sleeve b304 are slidably nested on the outer wall of the inner tube 1. Different support parts 3 can be replaced by sliding to play a supporting role for different thin-walled workpiece bodies 4. The spacer sleeve 301 and the support sleeve 303 are hard metal pipes, so that the inside of the thin-walled workpiece body 4 can be supported during processing. The support cone sleeve a302 and the support cone sleeve b304 are polyethylene. The outer walls of the support cone sleeve a302 and the support cone sleeve b304 are both provided with inclined surfaces that fit the inner wall of the thin-walled workpiece body 4, which can fit the inner wall of the thin-walled workpiece body 4 to play a supporting role, and at the same time prevent the thin-walled workpiece body 4 from being hard in contact with the support part 3, which may cause damage to the thin-walled workpiece body 4.

[0034] Working principle: First, thread the two fixing nuts a101 onto the inner tube 1, then slide the connecting sleeve 201 into the outer wall of the inner tube 1 and abut against the fixing nut a101, then thread the four limit screws 204 onto one end of the connecting sleeve 201, the limit screws 204 abut against the fixing nut a101, and the abutment between the limit screws 204 and the fixing nut a101 can limit the connecting sleeve 201 to prevent it from rotating around the inner tube 1, then slide the spacer sleeve 301, the support cone sleeve a302, the support sleeve 303 and the support cone sleeve b304 into the outside of the inner tube 1 in turn, and then nest the thin-walled workpiece body 4 into the outside of the support part 3, and the outer walls of the support cone sleeve a302 and the support cone sleeve b304 are provided with An inclined surface is provided to fit the inner wall of the thin-walled workpiece body 4, which is close to the inner wall of the thin-walled workpiece body 4. Then, a fixing screw 203 is passed through the connecting hole 202 and is threadedly connected to a thread groove 401 arranged at one end of the thin-walled workpiece body 4, and the thin-walled workpiece body 4 is fixed to one end of the connecting sleeve 201, so that the position of the thin-walled workpiece body 4 can be fixed. Finally, the fixing nut b102 is threadedly connected to the inner tube 1, so that the positions of the fixing part 2 and the supporting part 3 that are slidably nested on the outside of the inner tube 1 can be fixed, so that the inside of the thin-walled workpiece body 4 can be supported during processing, thereby preventing the thin-walled workpiece body 4 from being damaged due to lack of internal support during processing. By sliding and replacing different supporting parts 3, a supporting effect can be played on different thin-walled workpiece bodies 4.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thin-wall workpiece processing tool, characterized in that: include: An inner tube (1), a thin-walled workpiece body (4) being nested outside the inner tube (1); A fixing part (2), the fixing part (2) being nested on the outside of the inner tube (1), the outer wall of the fixing part (2) being in contact with the inner wall of the thin-walled workpiece body (4), the fixing part (2) comprising a connecting sleeve (201) nested on the outer wall of the inner tube (1) and fixing screws (203) arranged around the connecting sleeve (201); A support portion (3), wherein the support portion (3) is nested outside the inner tube (1), the end of the support portion (3) is in contact with the front end of the fixing portion (2), the support portion (3) comprises a spacer tube (301), a support cone sleeve a (302), a support sleeve (303) and a support cone sleeve b (304) which are sequentially nested outside the inner tube (1), a thin-walled workpiece body (4) is nested outside the support portion (3), and the support portion (3) is in contact with the inner wall of the thin-walled workpiece body (4) to support the inner wall of the thin-walled workpiece body (4).

2. A thin-wall workpiece processing tool according to claim 1, characterized in that: The inner tube (1) comprises a fixing nut a (101) threadedly arranged at one end of the inner tube (1) and a fixing nut b (102) threadedly arranged at the other end of the inner tube (1).

3. A thin-wall workpiece processing tool according to claim 1, characterized in that: The fixing portion (2) comprises a connecting sleeve (201) slidably embedded in the outer wall of the inner tube (1) and a limit screw (204) threadedly arranged on one side of the connecting sleeve (201), wherein four limit screws (204) are arranged, and the four limit screws (204) are rotationally symmetrical around the axial center of the inner tube (1), and the limit screws (204) are in contact with the fixing nut a (101).

4. A thin-wall workpiece processing tool according to claim 3, characterized in that: The fixing portion (2) comprises a plurality of connection holes (202) provided around the connection sleeve (201) and fixing screws (203) arranged in the connection holes (202); the fixing screws (203) pass through the connection holes (202) and are threadedly connected to a thread groove (401) provided at one end of the thin-walled workpiece body (4).

5. The thin-wall workpiece processing tool according to claim 1, characterized in that: The support portion (3) comprises a spacer sleeve (301) and a support sleeve (303) which are nested outside the inner tube (1); the spacer sleeve (301) and the support sleeve (303) are made of hard metal pipes.

6. A thin-wall workpiece processing tool according to claim 1, characterized in that: The support portion (3) comprises a support cone sleeve a (302) and a support cone sleeve b (304) which are nested outside the inner tube (1); the support cone sleeve a (302) and the support cone sleeve b (304) are made of polyethylene; and the outer walls of the support cone sleeve a (302) and the support cone sleeve b (304) are both provided with inclined surfaces which fit the inner wall of the thin-walled workpiece body (4).

7. The thin-wall workpiece processing tool according to claim 1, characterized in that: The support portion (3) comprises a spacer tube (301), a support cone sleeve a (302), a support sleeve (303) and a support cone sleeve b (304) which are sequentially nested outside the inner tube (1); the spacer tube (301), the support cone sleeve a (302), the support sleeve (303), the support cone sleeve b (304) and the inner tube (1) are in sliding connection with each other.

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