Positioning autorotation device for machining and polishing groove of aluminum alloy pipe

By using the frame and holding components of the positioning and rotation device, the axial rotation of the aluminum alloy tube is achieved, which solves the problems of cumbersome and safety hazards in the beveling of aluminum alloy tubes and improves processing efficiency and quality consistency.

CN223834150UActive Publication Date: 2026-01-27CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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Patent Information

Application Number
CN202520183838.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-06
Publication Date
2026-01-27
Estimated Expiration
2035-02-06

AI Technical Summary

Technical Problem

The existing aluminum alloy tube beveling process is cumbersome, inefficient, and results in insufficient surface roughness, posing significant safety hazards. Furthermore, it is difficult to operate without bench vises and related fixtures.

Method used

Design a positioning and rotating device, including a frame, a holding assembly and a roller assembly. The workpiece is made into rolling contact and axial rotation by means of the pressure head pulley and the roller. Combined with the blades of the grinder to drive the workpiece to rotate, the bevel is quickly processed and ground.

Benefits of technology

It improves the convenience and quality consistency of beveling aluminum alloy tubes, and reduces operational complexity and safety hazards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a positioning autorotation device for processing and polishing an aluminum alloy pipe groove, which comprises a frame and a hold-down component arranged on one side of the frame, the hold-down component is provided with a pressure head pulley contacted with the surface of a workpiece to be processed, and the pressure head pulley is in rolling contact with the surface of the workpiece to be processed; the roll shaft assembly is integrated in the hollow cavity of the frame and provided with two roll shafts arranged at intervals, and a workpiece to be machined is in rolling contact with the two roll shafts at the same time; the end of the to-be-machined workpiece extends to the edge of the frame so that the end of the to-be-machined workpiece can be polished through the polisher, and thousand blades of the polisher drive the to-be-machined workpiece to rotate. The positioning autorotation device is suitable for groove machining and grinding of workpieces of cylinder structures, convenient and fast to operate, suitable for various working conditions and high in consistency of groove machining and grinding quality.
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Description

Technical Field

[0001] This utility model relates to the field of beveling and grinding technology for aluminum alloy pipes, and in particular to a positioning and rotating device for beveling and grinding aluminum alloy pipes. Background Technology

[0002] In current working conditions, during on-site riveting and welding, to meet component dimensional accuracy and welding quality requirements, some structures involving aluminum alloy bars and tubes require pre-beveling and oxide film removal before assembly. The traditional method involves using a bench vise and related tooling fixtures for manual assembly. The detailed process involves fixing one side, grinding the other, and repeating this process until the entire circumference of the material is machined. This current process has the following drawbacks:

[0003] The process is cumbersome, and the efficiency of beveling and removing oxide film is low. At the same time, the surface roughness of the beveling process is insufficient because the workpiece does not rotate axially, the feed force of the hand-held grinder is uneven, and the thickness of the bevel blunt edge is inconsistent. On the construction site, without bench vises and related fixtures, the workpiece is handled with one hand and the grinder with the other, which poses a significant safety hazard.

[0004] Therefore, based on the above-mentioned technical problems, those skilled in the art urgently need to develop a positioning and rotating device for beveling and grinding aluminum alloy tubes. Utility Model Content

[0005] The purpose of this invention is to provide a positioning and rotating device for beveling and grinding aluminum alloy tubes. This device can achieve axial rotation of the workpiece after positioning, and can quickly perform manual beveling and grinding operations on aluminum alloy tubes and bars.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model discloses a positioning and rotating device for beveling and grinding aluminum alloy pipes, the positioning and rotating device comprising:

[0008] A frame, wherein the hollow interior of the frame forms a hollow cavity;

[0009] A pressing assembly disposed on one side of the frame, the pressing assembly having a pressure head pulley that contacts the surface of the workpiece to be processed, and the pressure head pulley making rolling contact with the surface of the workpiece to be processed; and

[0010] A roller assembly integrated within the hollow cavity of the frame, the roller assembly having two spaced rollers, and the workpiece to be processed making simultaneous rolling contact with the two rollers;

[0011] The end of the workpiece to be processed extends to the edge of the frame to be ground by a grinder, and the blades of the grinder drive the workpiece to be processed to rotate.

[0012] Furthermore, the frame is configured as a quadrilateral frame structure;

[0013] The frame has a mounting base on one side in the width direction, and the pressing assembly is connected to the mounting base via a pressing rod frame connecting pin;

[0014] The upper surfaces of both sides of the frame along its length are provided with arc-shaped grooves, and the end of the workpiece to be processed is placed in the arc-shaped groove on the corresponding side.

[0015] Furthermore, the pressing component includes:

[0016] The fixed pressure rod is connected to the mounting base via the pressure rod frame connecting pin. The fixed pressure rod is configured with an L-shaped structure, and one end of the fixed pressure rod extends toward the middle of the frame and is located directly above the frame.

[0017] A pressure head support rod is installed at the end of the fixed pressure rod, and a pressure head rotating rod extending horizontally is provided at the upper end of the pressure head support rod; and

[0018] The two separate pressure head pulleys are installed at the lower end of the pressure head support rod.

[0019] Furthermore, the pressure head support rod passes through the fixed pressure rod, and a damping spring is sleeved on the outside of the portion of the pressure head support rod extending to the upper part of the fixed pressure rod.

[0020] Furthermore, the roller assembly includes:

[0021] The two rollers;

[0022] Rolling bearings are disposed at both ends of the roller shaft in the axial direction, and the roller shaft is rotatably connected to the frame through the rolling bearings.

[0023] The roller shaft is connected to the rolling bearing by tightening the nut on the pressure roller.

[0024] Furthermore, the distance between the two rollers is less than the diameter of the workpiece to be processed.

[0025] In the above technical solution, the positioning and rotating device for beveling and grinding aluminum alloy pipes provided by this utility model has the following beneficial effects:

[0026] The positioning and rotation device of this invention is suitable for beveling and grinding of cylindrical workpieces. It is easy to operate, applicable to various working conditions, and provides high consistency in beveling and grinding quality. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0028] Figure 1 This is a schematic diagram of the positioning and rotating device for beveling and grinding aluminum alloy tubes, as disclosed in an embodiment of this utility model.

[0029] Figure 2 This is an exploded view of the structure of a positioning and rotating device for beveling and grinding aluminum alloy pipes, as disclosed in an embodiment of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Frame; 2. Holding assembly; 3. Roller assembly; 4. Workpiece to be processed;

[0032] 101. Mounting base; 102. Pressure bar frame connecting pin;

[0033] 201. Fixed pressure bar; 202. Pressure head support rod; 203. Pressure head rotating rod; 204. Pressure head pulley; 205. Damping spring; 206. Connecting pin;

[0034] 301. Roller shaft; 302. Rolling bearing; 303. Pressure roller tightening nut. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0036] See Figures 1 to 2 As shown;

[0037] This embodiment provides a positioning and rotating device for beveling and grinding aluminum alloy tubes. The positioning and rotating device includes:

[0038] Frame 1, the hollow terrain inside Frame 1 forms a hollow cavity;

[0039] A pressing assembly 2 is disposed on one side of the frame 1. The pressing assembly 2 has a pressure head pulley 204 that contacts the surface of the workpiece 4 to be processed, and the pressure head pulley 204 makes rolling contact with the surface of the workpiece 4 to be processed; and

[0040] The roller assembly 3 is integrated into the hollow cavity of the frame 1. The roller assembly 3 has two rollers 301 spaced apart, and the workpiece 4 to be processed makes rolling contact with the two rollers 301 at the same time.

[0041] The end of the workpiece 4 extends to the edge of the frame 1 to be ground by a grinder, and the blades of the grinder drive the workpiece 4 to rotate.

[0042] Specifically, this embodiment discloses a device for beveling and grinding aluminum alloy tubes. Its bottom is a frame 1, and a clamping assembly 2 for holding and rolling with the tube surface is integrated on the frame 1. Simultaneously, a roller assembly 3 capable of rolling with the tube surface is integrated inside the frame 1. The workpiece 4 to be processed, i.e., the aluminum alloy tube, is placed on the roller assembly 3. Since the roller assembly 3 has two spaced rollers 301, it can lift the tube and form a rolling fit with the tube when it rotates. Meanwhile, the tube... The tube is held in place by the pressing assembly 2, and the two pressure rollers 204 of the pressing assembly 2 form a rolling engagement with the upper surface of the tube. When the hand-held grinder is used for grinding, when the blades of the grinder contact the tube, the rotational friction of the blades causes the tube to rotate axially in the opposite direction to the blades. At this time, the tube is clamped between the two rollers 301. The rotation of the tube also drives the two rollers 301 to rotate, and the two rollers 301 rotate in opposite directions. At the same time, the two pressure rollers 204 of the pressing assembly 2 also rotate in opposite directions. This allows the tube to rotate, ensuring the consistency of the bevel grinding.

[0043] Preferably, firstly, this embodiment further defines the structure of the frame 1, specifically: the frame 1 is configured as a quadrilateral frame structure; in order to integrate the pressing component 2, one side of the frame 1 in the width direction has a mounting base 101, and the pressing component 2 is connected to the mounting base 101 through the pressing rod frame connecting pin 102;

[0044] The upper surfaces of both sides of the frame 1 along its length are provided with arc-shaped grooves, and the end of the workpiece 4 to be processed is placed in the arc-shaped groove on the corresponding side.

[0045] Based on the design of the mounting base 101 described above, the pressing component 2 in this embodiment includes:

[0046] The fixed pressure rod 201 is connected to the mounting base 101 via the pressure rod frame connecting pin 102. The fixed pressure rod 201 is configured with an L-shaped structure, and one end of the fixed pressure rod 201 extends toward the middle of the frame 1 and is located directly above the frame 1.

[0047] A pressure head support rod 202 is installed at the end of the fixed pressure rod 201, and a pressure head rotating rod 203 extending horizontally is provided at the upper end of the pressure head support rod 202; and

[0048] Two separate pressure head pulleys 204 are installed at the lower end of the pressure head support rod 202.

[0049] In this embodiment, the pressure head support rod 202 passes through the fixed pressure rod 201, and a damping spring 204 is sleeved on the outside of the portion of the pressure head support rod 202 extending to the upper part of the fixed pressure rod 201.

[0050] First, this embodiment further defines the structure of the pressing assembly 2, which includes a fixed pressing rod 201 assembled with the frame 1 on the mounting base 101. The fixed pressing rod 201 extends to the upper part of the middle of the frame 1 in an L-shaped structure. A pressing head support rod 202 is installed at the end of the fixed pressing rod 201, and a pressing head rotating rod 203 passes through the upper end of the pressing head support rod 202. Two pressing head pulleys 204 are installed at the lower end of the pressing head support rod 202 through a connecting pin 206. At the same time, in order to provide limiting and shock absorption functions for the pressing assembly 2 in the working state, the pressing head support rod 202 in this embodiment is fitted with a damping spring 204.

[0051] Preferably, the roller assembly 3 in this embodiment includes two rollers 301; rolling bearings 302 are disposed at both ends of the rollers 301 in the axial direction, and the rollers 301 are rotatably connected to the frame 1 through the rolling bearings 302;

[0052] The roller shaft 301 is connected to the rolling bearing 302 via the pressure roller tightening nut 303. In this embodiment, the distance between the two roller shafts 301 is smaller than the diameter of the workpiece 4 to be processed.

[0053] In the above technical solution, the positioning and rotating device for beveling and grinding aluminum alloy pipes provided by this utility model has the following beneficial effects:

[0054] The positioning and rotation device of this invention is suitable for beveling and grinding of cylindrical workpieces. It is easy to operate, applicable to various working conditions, and provides high consistency in beveling and grinding quality.

[0055] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A positioning and rotating device for beveling and grinding aluminum alloy pipes, characterized in that, The positioning and rotation device includes: The frame (1) has a hollow interior forming a hollow cavity; A pressing assembly (2) is disposed on one side of the frame (1), the pressing assembly (2) having a pressure head pulley (204) that contacts the surface of the workpiece (4) to be processed, and the pressure head pulley (204) makes rolling contact with the surface of the workpiece (4); and A roller assembly (3) is integrated into the hollow cavity of the frame (1). The roller assembly (3) has two rollers (301) spaced apart, and the workpiece (4) to be processed makes rolling contact with the two rollers (301) at the same time. The end of the workpiece (4) extends to the edge of the frame (1) to be polished by a grinder, and the blades of the grinder drive the workpiece (4) to rotate.

2. The positioning and rotating device for beveling and grinding aluminum alloy pipes according to claim 1, characterized in that, The frame (1) is configured as a quadrilateral frame structure; The frame (1) has a mounting base (101) on one side in the width direction, and the pressing assembly (2) is connected to the mounting base (101) via a pressing rod frame connecting pin (102); The upper surfaces of the two sides of the frame (1) along the length direction are provided with arc-shaped grooves, and the end of the workpiece (4) to be processed is placed in the arc-shaped groove on the corresponding side.

3. The positioning and rotating device for beveling and grinding aluminum alloy pipes according to claim 2, characterized in that, The holding component (2) includes: The fixed pressure rod (201) is connected to the mounting base (101) via the pressure rod frame connecting pin (102). The fixed pressure rod (201) is configured in an L-shape, and one end of the fixed pressure rod (201) extends toward the middle of the frame (1) and is located directly above the frame (1). A pressure head support rod (202) is installed at the end of the fixed pressure rod (201), and a pressure head rotating rod (203) extending horizontally is provided at the upper end of the pressure head support rod (202); and The two separate pressure head pulleys (204) are installed at the lower end of the pressure head support rod (202).

4. The positioning and rotating device for beveling and grinding aluminum alloy pipes according to claim 3, characterized in that, The pressure head support rod (202) passes through the fixed pressure rod (201), and a damping spring (205) is sleeved on the outside of the portion of the pressure head support rod (202) extending to the upper part of the fixed pressure rod (201).

5. A positioning and rotating device for beveling and grinding aluminum alloy tubes according to claim 1 or 2, characterized in that, The roller assembly (3) includes: The two rollers (301); Rolling bearings (302) are provided at both ends of the roller shaft (301) in the axial direction, and the roller shaft (301) is rotatably connected to the frame (1) through the rolling bearings (302); The roller shaft (301) is connected to the rolling bearing (302) via the pressure roller tightening nut (303).

6. A positioning and rotating device for beveling and grinding aluminum alloy pipes according to claim 5, characterized in that, The distance between the two rollers (301) is less than the diameter of the workpiece (4) to be processed.