Pipe expanding device for machining front fork of electric vehicle

Abstract

The utility model relates to the technical field of electric vehicle machining, in particular to an electric vehicle front fork machining pipe expanding device which comprises an installation base, a pipe expanding machine is detachably installed on the installation base, and a lifting limiting mechanism used for limiting and conveying a front fork body is movably installed on the installation base. Pipe expanding auxiliary mechanisms used for heating the front fork body are symmetrically arranged on the front side and the rear side of the pipe expanding machine, the lifting limiting mechanism comprises a lifting push rod fixedly installed on the installation base, and a limiting platform is fixedly installed at the upper end of the lifting push rod. The lifting limiting mechanism is arranged, the oval groove, the clamping block and the limiting cover plate are matched with one another, multiple limiting can be automatically carried out on the front fork body before pipe expanding machining is carried out, the situation that a pipe body is damaged due to the fact that the front fork body shakes in the pipe expanding process can be effectively avoided, and in addition, the working efficiency is improved. In the limiting process, the front fork side pipe cannot be pressed at all, and bending of the front fork side pipe can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle processing, in particular to a pipe expanding device for processing a front fork of an electric vehicle. Background Art

[0002] The front fork of an electric vehicle is composed of two side tubes and a main tube. The side tubes are connected to each other in a U shape for mounting wheels, and the main tube is connected to the bottom of the U shape for connecting to the frame of the electric vehicle. In order to facilitate the connection with various types of frames, the main tube often needs to be expanded during the processing of the front fork. In the prior art, when expanding the main tube, the front fork of the electric vehicle is usually placed directly on the workbench, and then the side tubes are clamped and fixed by a clamp, and finally the main tube is expanded by a tube expander.

[0003] However, under normal circumstances, the side tubes have a certain curvature and cannot be completely in contact with the desktop when laid flat. In the process of clamping and limiting the side tubes directly, if the clamping force is too small, the stability of the front fork during the tube expansion process cannot be guaranteed. If the clamping force is too large, the U-shaped side tube may be easily bent. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a tube expansion device for processing an electric vehicle front fork, which solves the technical problem that the tube expansion device in the prior art easily causes the side tube to bend when fixing the electric vehicle front fork, and has the advantage of being able to effectively prevent the side tube of the front fork from bending due to pressure during the clamping and limiting process.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a tube expanding device for processing a front fork of an electric vehicle, comprising a mounting base, a tube expander detachably mounted on the mounting base, a front fork body placed above the tube expander, a lifting and limiting mechanism for limiting and conveying the front fork body movably mounted on the mounting base, a tube expanding auxiliary mechanism for heating the front fork body symmetrically arranged on the front and rear sides of the tube expander, after the front fork body is placed inside the lifting and limiting mechanism, the lifting and limiting mechanism will vertically convey the front fork body downward, and then the tube expander will perform tube expanding processing on the front fork body, the lifting and limiting mechanism comprises a lifting push rod fixedly mounted on the mounting base, a limiting platform is fixedly mounted on the upper end of the lifting push rod, an elliptical groove for limiting the front fork body is opened at the upper end of the limiting platform, clamping blocks are symmetrically arranged on the left and right sides of the inner wall of the elliptical groove, a limiting cover plate is rotatably connected on the limiting platform, a buckle assembly is arranged at the lower end of the limiting cover plate, and after the staff puts the front fork body into the elliptical groove, it will be fixed under the joint action of the clamping block and the limiting cover plate.

[0006] Preferably, the pipe expansion auxiliary mechanism includes a rectangular slide groove opened at the upper end of the mounting base, a sliding bracket is movably installed inside the rectangular slide groove, and a heating cover for heating the front fork body is fixedly installed on the sliding bracket. During the pipe expansion process, the heating cover will automatically heat up the front fork main pipe, which can effectively improve the pipe expansion efficiency.

[0007] Preferably, the front fork body consists of a front fork side tube, a front fork main tube and a connecting block, the two front fork side tubes are located on the same side of the connecting block, the front fork main tube is located on the other side of the connecting block, a U-shape is formed between the two front fork side tubes and the connecting block, and the front fork main tube is located at the bottom of the U-shape.

[0008] Preferably, a limiting slot matching with the buckle assembly is provided at the upper end of the limiting platform, and after the buckle assembly is inserted into the limiting slot, the connecting block is pressed and fixed.

[0009] Preferably, a rubber pressing block is fixedly mounted on the lower end of the limiting cover plate, and when the limiting cover plate is flipped over to the top of the elliptical groove, the rubber pressing block will contact the connecting block.

[0010] Preferably, there are two rectangular slide grooves, which are respectively located at the front and rear sides of the pipe expander, and a sliding bracket is arranged inside each rectangular slide groove.

[0011] By means of the above technical solution, the utility model provides a device for processing and expanding a front fork of an electric vehicle, which has at least the following beneficial effects:

[0012] 1. The utility model sets a lifting limit mechanism and utilizes the mutual cooperation among the elliptical groove, the clamping block and the limit cover plate to automatically perform multiple limits on the front fork body before the tube expansion process, which can effectively prevent the front fork body from shaking during the tube expansion process and causing damage to the tube body. Moreover, no pressure will be applied to the side tube of the front fork during the limiting process, which can effectively prevent the side tube of the front fork from bending.

[0013] 2. The utility model provides a pipe expansion auxiliary mechanism and utilizes the cooperation between the sliding bracket and the heating cover to automatically heat the outer side of the front fork main pipe during the pipe expansion process, which can effectively improve the efficiency of the pipe expansion process. Moreover, the distance between the two heating covers can be freely adjusted, which is suitable for front fork bodies of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the installation position of the limit cover plate in the utility model;

[0017] Figure 3 It is a structural schematic diagram of the lifting and limiting mechanism in the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the limiting platform in the utility model;

[0019] Figure 5 It is a schematic diagram of some structures in the utility model;

[0020] Figure 6 It is a structural schematic diagram of the front fork body in the utility model.

[0021] In the figure: 1. Installation base; 2. Tube expander; 3. Lifting and limiting mechanism; 301. Lifting push rod; 302. Limiting platform; 303. Elliptical groove; 304. Clamping block; 305. Limiting cover; 306. Buckle assembly; 4. Tube expansion auxiliary mechanism; 401. Rectangular slide; 402. Sliding bracket; 403. Heating cover; 5. Front fork body; 501. Front fork side tube; 502. Front fork main tube; 503. Connecting block. DETAILED DESCRIPTION

[0022] 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.

[0023] Embodiment 1

[0024] When the staff is expanding the front fork of an electric vehicle, they usually place the front fork flat on the workbench and then use a limit clamp to clamp and limit the front fork. If the clamping force is too small, the stability of the front fork during the expansion process cannot be guaranteed. If the clamping force is too large, it is easy to cause the U-shaped side tube to be bent.

[0025] according to Figure 1-Figure 6As shown, a tube expanding device for processing a front fork of an electric vehicle comprises a mounting base 1, on which a tube expander 2 is detachably mounted, a front fork body 5 is placed above the tube expander 2, a lifting and limiting mechanism 3 for limiting the conveyance of the front fork body 5 is movably mounted on the mounting base 1, and tube expanding auxiliary mechanisms 4 for heating the front fork body 5 are symmetrically arranged on the front and rear sides of the tube expander 2. After the front fork body 5 is placed inside the lifting and limiting mechanism 3, the lifting and limiting mechanism 3 will convey the front fork body 5 vertically downward, and then the tube expander 2 will perform tube expansion processing on the front fork body 5.

[0026] Specifically, the lifting and limiting mechanism 3 includes a lifting push rod 301 fixedly mounted on the mounting base 1, and a limiting platform 302 is fixedly mounted on the upper end of the lifting push rod 301. A limiting card slot matching the buckle assembly 306 is provided on the upper end of the limiting platform 302. After the buckle assembly 306 is inserted into the inner part of the limiting card slot, the connecting block 503 is pressed and fixed. An elliptical groove 303 for limiting the front fork body 5 is provided on the upper end of the limiting platform 302. The left and right inner walls of the elliptical groove 303 are A clamping block 304 is symmetrically arranged on the side, and a limiting cover plate 305 is rotatably connected to the limiting platform 302. A rubber pressure block is fixedly installed on the lower end of the limiting cover plate 305. When the limiting cover plate 305 is flipped to the top of the elliptical groove 303, the rubber pressure block will contact the connecting block 503. A buckle assembly 306 is arranged on the lower end of the limiting cover plate 305. After the staff puts the front fork body 5 into the inside of the elliptical groove 303, it will be fixed under the joint action of the clamping block 304 and the limiting cover plate 305.

[0027] Specifically, the pipe expansion auxiliary mechanism 4 includes a rectangular slide groove 401 opened at the upper end of the mounting base 1, and a sliding bracket 402 is movably installed inside the rectangular slide groove 401. There are two rectangular slide grooves 401, and the two rectangular slide grooves 401 are respectively located on the front and rear sides of the pipe expander 2. A sliding bracket 402 is arranged inside each rectangular slide groove 401, and a heating cover 403 for heating the front fork body 5 is fixedly installed on the sliding bracket 402. During the pipe expansion process, the heating cover 403 will automatically heat up the front fork main pipe 502, which can effectively improve the pipe expansion efficiency.

[0028] Specifically, the front fork body 5 is composed of a front fork side tube 501, a front fork main tube 502 and a connecting block 503. The two front fork side tubes 501 are located on the same side of the connecting block 503, and the front fork main tube 502 is located on the other side of the connecting block 503. The two front fork side tubes 501 and the connecting block 503 form a U shape, and the front fork main tube 502 is located at the bottom of the U shape.

[0029] In this embodiment, Figure 1As shown, when the staff uses the device to expand the front fork of the electric vehicle, they will first put the front fork body 5 upside down into the inside of the elliptical groove 303. At this time, the front fork main pipe 502 will pass through the limiting platform 302 and extend downward, and the connecting block 503 will be located inside the elliptical groove 303.

[0030] At the same time, the two clamping blocks 304 will contact the left and right sides of the connecting block 503 respectively under the elastic force of the internal spring. Next, the staff will flip the limit cover 305 to the top of the elliptical groove 303 and press the buckle assembly 306 into the inside of the limit groove, so as to limit and fix the front fork body 5 to avoid the position of the front fork body 5 from shifting during the pipe expansion operation.

[0031] Next, the limiting platform 302 will move vertically downward under the action of the lifting push rod 301, so as to transport the front fork body 5 to the top of the pipe expanding machine 2, and then the pipe expanding machine 2 will automatically expand the front fork main pipe 502.

[0032] At the same time, Figure 5 As shown, during the pipe expansion process, the heating cover 403 installed on the sliding bracket 402 will automatically heat the outer side of the front fork main pipe 502, which helps to smoothly carry out the pipe expansion process.

[0033] The present embodiment sets a lifting limit mechanism 3, and utilizes the mutual cooperation between the elliptical groove 303, the clamping block 304 and the limit cover plate 305, so as to automatically perform multiple limits on the front fork body 5 before the pipe expansion process, which can effectively prevent the front fork body 5 from shaking during the pipe expansion process and causing damage to the tube body. Moreover, no pressure will be applied to the front fork side tube 501 during the limiting process, which can effectively prevent the front fork side tube 501 from bending. In addition, the present embodiment sets a pipe expansion auxiliary mechanism 4, and utilizes the mutual cooperation between the sliding bracket 402 and the heating cover 403, so as to automatically heat the outer side of the front fork main tube 502 during the pipe expansion process, which can effectively improve the efficiency of the pipe expansion process. Moreover, the distance between the two heating covers 403 can be freely adjusted, which is suitable for front fork bodies 5 of different sizes.

[0034] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0035] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0036] 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 tube expanding device for processing a front fork of an electric vehicle, comprising a mounting base (1), a tube expander (2) being detachably mounted on the mounting base (1), a front fork body (5) being placed above the tube expander (2), and characterized in that: A lifting and limiting mechanism (3) for limiting the position of the front fork body (5) for conveying is movably installed on the installation base (1), and a pipe expanding auxiliary mechanism (4) for heating the front fork body (5) is symmetrically arranged on the front and rear sides of the pipe expanding machine (2); The lifting and limiting mechanism (3) comprises a lifting push rod (301) fixedly mounted on the mounting base (1); a limiting platform (302) is fixedly mounted on the upper end of the lifting push rod (301); an elliptical groove (303) for limiting the front fork body (5) is provided on the upper end of the limiting platform (302); clamping blocks (304) are symmetrically arranged on the left and right sides of the inner wall of the elliptical groove (303); a limiting cover plate (305) is rotatably connected to the limiting platform (302); and a buckle assembly (306) is arranged at the lower end of the limiting cover plate (305).

2. The device for processing and expanding a front fork of an electric vehicle according to claim 1, characterized in that: The tube expansion auxiliary mechanism (4) comprises a rectangular slide groove (401) provided at the upper end of the mounting base (1), a sliding bracket (402) being movably mounted inside the rectangular slide groove (401), and a heating cover (403) for heating the front fork body (5) being fixedly mounted on the sliding bracket (402).

3. The device for processing and expanding a front fork of an electric vehicle according to claim 1, characterized in that: The front fork body (5) is composed of a front fork side tube (501), a front fork main tube (502) and a connecting block (503); the two front fork side tubes (501) are located on the same side of the connecting block (503), and the front fork main tube (502) is located on the other side of the connecting block (503).

4. The device for processing and expanding a front fork of an electric vehicle according to claim 1, characterized in that: The upper end of the limiting platform (302) is provided with a limiting slot matching the buckle assembly (306).

5. The device for processing and expanding a front fork of an electric vehicle according to claim 1, characterized in that: A rubber pressing block is fixedly mounted on the lower end of the limiting cover plate (305).

6. The device for processing and expanding a front fork of an electric vehicle according to claim 2, characterized in that: There are two rectangular slide grooves (401), which are respectively located at the front and rear sides of the pipe expander (2), and a sliding bracket (402) is arranged inside each rectangular slide groove (401).

Images