Positioning device for machining integrated thin-walled tube

Abstract

The utility model relates to a positioning device for machining an integrated thin-walled tube, and belongs to the technical field of machining. When in use, an operator axially inserts the device into a pipe hole of the thin-walled pipe, adjusts the axial position of the conical pin through the screw rod, and further pushes the wedge-shaped block to move along the supporting pipe in the radial direction, so that the inner wall of the thin-walled pipe is supported in the radial direction, vibration of the thin-walled pipe in the machining process is effectively reduced, and machining efficiency is improved. Deformation and damage of the thin-walled tube caused by cutter pressure are avoided, the geometrical shape and dimensional accuracy of the thin-walled tube are guaranteed, and therefore the machining stability and the surface machining quality of the thin-walled tube are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, and particularly relates to an integrated positioning device for processing thin-walled pipes. Background Art

[0002] Due to their unique thin walls and poor rigidity, thin-walled tubes exhibit high sensitivity during machining. In existing machining techniques, thin-walled tubes are typically secured by a three-jaw chuck on a lathe and then turned. However, during the turning process, one end of the thin-walled tube is secured by the three-jaw chuck, while the other end lacks effective support. Due to the relatively thin wall thickness (4mm) of the thin-walled tube being machined, the pressure applied by the tool during machining can easily cause deformation or even damage to the thin-walled tube, affecting not only the appearance quality of the thin-walled tube but also its mechanical properties and performance. Furthermore, insufficient support for the thin-walled tube can easily cause vibration, which can increase the roughness of the machined surface and thus affect the machining quality of the thin-walled tube. Utility Model Content

[0003] In order to overcome the problem in the background technology that during the turning process, one end of the thin-walled tube is fixed by a three-jaw chuck, while the other end lacks effective support, and since the wall thickness of the processed thin-walled tube is relatively thin (4mm), the pressure applied by the tool during the processing can easily cause the thin-walled tube to be deformed or even damaged, which not only affects the appearance quality of the thin-walled tube, but also may reduce its mechanical properties and use effect. At the same time, insufficient support of the thin-walled tube is prone to vibration, which will increase the roughness of the processed surface and thus affect the processing quality of the thin-walled tube. The utility model provides an integrated positioning device for thin-walled tube processing; when in use, the operator axially inserts it into the tube hole of the thin-walled tube, adjusts the axial position of the tapered pin by a screw, and further pushes the wedge block to move radially along the support tube, thereby radially supporting the inner wall of the thin-walled tube, effectively reducing the vibration of the thin-walled tube during processing, avoiding the deformation and damage of the thin-walled tube caused by tool pressure, ensuring the geometric shape and dimensional accuracy of the thin-walled tube, and improving the processing stability and surface processing quality of the thin-walled tube.

[0004] To achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions: an integrated positioning device for thin-walled tube processing mainly includes a support tube, a wedge block, a tapered pin, a screw, a spring, and an end cover. The interior of the support tube is set as a hollow structure, and the tapered pin is inserted inside the support tube. Positioning grooves are evenly opened on the support tube along the circumferential direction. A wedge block in contact with the outer wall of the tapered pin is slidably installed in the positioning groove. A spring that is tightly pressed against the small end of the tapered pin is installed inside one end of the support tube, and a detachable end cover is installed at the other end. The end of the screw passes through the end cover and is tightly pressed against the large end of the tapered pin, and the screw is threadedly connected to the end cover.

[0005] A limiting groove is provided at the end of the wedge-shaped block, and a positioning block which is matched with the limiting groove is provided on the side wall of the positioning groove.

[0006] The outer diameter of the support tube is smaller than the inner diameter of the thin-walled tube, and the length of the support tube is greater than the length of the thin-walled tube.

[0007] The end of the support tube is provided with an external thread, and the end cover is threadedly connected to the end of the support tube.

[0008] The bottom surface of the wedge block is set as an arc surface that contacts the outer circular surface of the tapered pin.

[0009] Beneficial effects of the utility model:

[0010] When the utility model is used, the operator inserts it axially into the tube hole of the thin-walled tube, adjusts the axial position of the tapered pin by the screw, and further pushes the wedge block to move radially along the supporting tube, thereby radially supporting the inner wall of the thin-walled tube, effectively reducing the vibration of the thin-walled tube during processing, avoiding deformation and damage of the thin-walled tube due to tool pressure, ensuring the geometric shape and dimensional accuracy of the thin-walled tube, and thus improving the processing stability and the surface processing quality of the thin-walled tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0012] Figure 2 It is a cross-sectional view of the utility model.

[0013] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0014] Figure 4 It is a three-dimensional schematic diagram of the utility model in use state.

[0015] Figure 5 It is an exploded view of the utility model.

[0016] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle.

[0017] Figure 7 yes Figure 5 A partial enlarged view of point C in the middle. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding by technicians.

[0019] The utility model discloses an integrated positioning device for processing thin-walled tubes, which mainly includes a support tube 1, a wedge block 2, a tapered pin 3, a screw 4, a spring 5, and an end cover 6. The interior of the support tube 1 is set as a hollow structure, and the tapered pin 3 is inserted into the interior of the support tube. Positioning grooves 101 are evenly opened on the support tube 1 along the circumferential direction, and a wedge block 2 in contact with the outer wall of the tapered pin 3 is slidably installed in the positioning groove 101. A spring 5 that is tightly pressed against the small end of the tapered pin 3 is installed inside one end of the support tube 1, and a detachable end cover 6 is installed at the other end. The end of the screw 4 passes through the end cover 6 and is tightly pressed against the large end of the tapered pin 3, and the screw 4 is threadedly connected to the end cover 6.

[0020] During use, the operator inserts the device axially into the tube hole of the thin-walled tube 7, adjusts the axial position of the tapered pin 3 by the screw 4, and further pushes the wedge block 2 to move radially along the support tube 1, thereby radially supporting the inner wall of the thin-walled tube 7, effectively reducing the vibration of the thin-walled tube 7 during processing, avoiding deformation and damage of the thin-walled tube 7 due to tool pressure, ensuring the geometric shape and dimensional accuracy of the thin-walled tube 7, thereby improving the processing stability and surface processing quality of the thin-walled tube 7; after the thin-walled tube 7 is processed, the operator twists the screw 4 in the opposite direction, and the tapered pin 3 is reset under the elastic force of the spring 5, which makes it easy to remove the device from the thin-walled tube 7 and is easy to operate.

[0021] The end of the wedge block 2 is provided with a limiting groove 201, and the side wall of the positioning groove 101 is provided with a positioning block 102 that cooperates with the limiting groove 201; the positioning block 102 can limit the wedge block 2, so that the wedge block 2 slides on the positioning block 102, thereby providing radial support to the inner wall of the thin-walled tube 7.

[0022] The outer diameter of the support tube 1 is smaller than the inner diameter of the thin-walled tube 7, and the length is greater than the length of the thin-walled tube 7; ensuring that the support tube 1 can be smoothly inserted into the thin-walled tube 7, while providing support for both ends of the thin-walled tube 7 to increase the overall stability.

[0023] The end of the support tube 1 is provided with an external thread, and the end cover 6 is threadedly connected to the end of the support tube 1 for easy disassembly and assembly.

[0024] The bottom surface of the wedge block 2 is configured as an arcuate surface in contact with the outer circumferential surface of the tapered pin 3; this can increase the contact area between the two, thereby improving contact stability.

[0025] Working process:

[0026] During use, the operator inserts the device axially into the tube hole of the thin-walled tube 7, adjusts the axial position of the tapered pin 3 by the screw 4, and further pushes the wedge block 2 to move radially along the support tube 1, thereby radially supporting the inner wall of the thin-walled tube 7, effectively reducing the vibration of the thin-walled tube 7 during processing, avoiding deformation and damage of the thin-walled tube 7 due to tool pressure, ensuring the geometric shape and dimensional accuracy of the thin-walled tube 7, thereby improving the processing stability and surface processing quality of the thin-walled tube 7; after the thin-walled tube 7 is processed, the operator twists the screw 4 in the opposite direction, and the tapered pin 3 is reset under the elastic force of the spring 5, which makes it easy to remove the device from the thin-walled tube 7 and is easy to operate.

[0027] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. An integrated positioning device for thin-walled tube processing, characterized in that: The one-piece positioning device for processing thin-walled tubes comprises a support tube (1), a wedge block (2), a tapered pin (3), a screw (4), a spring (5), and an end cover (6). The interior of the support tube (1) is set as a hollow structure, the tapered pin (3) is inserted into the interior of the support tube, positioning grooves (101) are uniformly opened on the support tube (1) along the circumferential direction, a wedge block (2) in contact with the outer wall of the tapered pin (3) is slidably installed in the positioning groove (101), a spring (5) pressed against the small end of the tapered pin (3) is installed inside one end of the support tube (1), and a detachable end cover (6) is installed at the other end, the end of the screw (4) passes through the end cover (6) and presses against the large end of the tapered pin (3), and the screw (4) is threadedly connected to the end cover (6).

2. The integrated positioning device for thin-walled tube processing according to claim 1, characterized in that: The end of the wedge-shaped block (2) is provided with a limiting groove (201), and a positioning block (102) is provided on the side wall of the positioning groove (101) and is connected to the limiting groove (201).

3. The integrated positioning device for thin-walled tube processing according to claim 1 or 2, characterized in that: The outer diameter of the support tube (1) is smaller than the inner diameter of the thin-walled tube, and the length is greater than the length of the thin-walled tube.

4. The integrated positioning device for processing thin-walled tubes according to claim 3, characterized in that: The end of the support tube (1) is provided with an external thread, and the end cover (6) is threadedly connected to the end of the support tube (1).

5. The integrated positioning device for processing thin-walled tubes according to claim 3, characterized in that: The bottom surface of the wedge block (2) is configured as an arcuate surface in contact with the outer circumferential surface of the tapered pin (3).

Images