Pipe fitting welding device
By designing the slide rod and sleeve structure and using deformation gauge to fix the pipe fittings, the problem that existing welding devices are difficult to adapt to different pipe diameters is solved, and the accuracy of welding positions and high versatility of the equipment is achieved.
Patent Information
- Application Number
- CN202421723853.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-19
AI Technical Summary
Existing welding devices are difficult to adapt to bellows of different diameters, causing operators to spend more time and effort to ensure the stability of the bellows, and replacing and adjusting the fixing rods reduces the overall efficiency of the production line.
A pipe fitting welding device is designed, adopting a slide rod and sleeve structure, which fixes the pipe fittings through the tensioning function of the deformation gauge, and realizes the up and down movement of the slide rod through the drive device to adapt to pipe fittings of different sizes.
The device fixes the pipe fittings through uniform opening and abutment of the deformation gauge, prevents shaking, ensures the accuracy of the welding position, and improves the versatility and flexibility of the equipment.
Smart Images
Figure CN222919942U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of welding processing, in particular to a pipe welding device. Background Art
[0002] Welding is a key link in the production process of bellows in automotive parts. It is directly related to the performance and quality of the bellows. When the bellows are welded, the high-temperature arc generated by the welding pipe will melt the metal material instantly to form liquid metal. This liquid metal is very susceptible to external air pollution. The oxygen, nitrogen and hydrogen in the air will react chemically with the liquid metal during the welding and cooling processes to form components that are harmful to the performance of the weld, thereby greatly affecting the strict quality requirements of precision welding for the weld. Therefore, the main function of the atmosphere protection device is to form a layer of protective atmosphere by introducing inert gas into the welding area, isolating the contact between air and liquid metal, and preventing oxidation and nitridation reactions.
[0003] At present, the bellows is usually placed on a processing table. A protective cover is provided on the outer cover of the processing table, and inert gas is introduced into the protective cover. A fixing rod is provided on the processing table, and the bellows is sleeved on the fixing rod. The bellows is fixed by the fixing rod. The fixing rod is usually designed to be a fixed size or a limited adjustable range, which makes it difficult to adapt to bellows of different diameters. Due to the limitation of the fixing rod, the operator may need to spend more time and energy to ensure the stability of the bellows. In addition, replacing and adjusting the fixing rod will also reduce the overall efficiency of the production line. Utility Model Content
[0004] In view of the problems existing in the above-mentioned prior art, the utility model provides a pipe welding device, which can effectively solve the problems existing in the above-mentioned prior art.
[0005] The technical solution of the utility model is:
[0006] According to one aspect of the utility model, it includes: a protective cover, which is arranged on a pipe and an inert gas is introduced into the protective cover; a slide bar and a sleeve, wherein the slide bar is arranged in the sleeve so as to be movable up and down; and a plurality of deformable sheets, which are arranged around the outer circumference of the slide bar so as to be openable and closable to form a sleeve;
[0007] A positioning head is provided at one end of the slide rod extending toward the open end of the sleeve. The positioning head is wide at the top and narrow at the bottom and is exposed outside the sleeve. The other end of the slide rod is equipped with a driving device. The pipe fitting is sleeved on the outside of the sleeve. When the driving device drives the positioning head to move into the sleeve, the positioning head opens a plurality of deformation sheets, causing the plurality of deformation sheets to abut against the inner wall of the pipe fitting.
[0008] Furthermore, it also includes a processing table, the processing table is provided with a through hole, the sleeve is arranged on the driving device to move up and down in the through hole; the protective cover is fixedly arranged on the upper end surface of the processing table.
[0009] Furthermore, it also includes a slide rail, and the driving device moves on the lower end surface of the processing table through the slide rail. When the driving device moves toward the processing table, the sleeve is located in the protective cover.
[0010] Furthermore, the driving device is a cylinder.
[0011] Furthermore, the protective cover is made of light-transmitting material.
[0012] Furthermore, it also includes welding equipment, the protective cover is provided with a notch, and the welding pipe of the welding equipment is passed through the notch.
[0013] Furthermore, the inert gas is argon.
[0014] By adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:
[0015] This solution uses a positioning head to expand the deformation sheets, causing several deformation sheets to abut against the inner wall of the pipe fitting; thereby fixing the pipe fitting, the deformation sheets are evenly expanded under the action of the positioning head, and the deformation sheets abut against the inner wall of the pipe fitting to form a close contact, thereby preventing the pipe fitting from shaking during the welding process, ensuring the accuracy of the welding position, and being able to adapt to pipe fittings of different sizes, thereby improving the versatility and flexibility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 It is a schematic diagram of the explosion structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the utility model with the protective cover removed and the driving device located at the initial position;
[0019] Figure 3 This is a schematic diagram of the structure in which the protective cover is removed and the pipe is moved to the processing table in the utility model;
[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model;
[0021] Figure 5In the present utility model, it is a schematic enlarged structure diagram at position A;
[0022] Figure 6 It is a schematic three-dimensional structure diagram of the present utility model;
[0023] Figure 7 It is a schematic three-dimensional structure diagram of a pipe fitting;
[0024] In the figure: processing table - 1, groove - 12, through hole - 13, protective cover - 2, top cover - 21, notch - 22, air inlet hole - 23, sliding rod - 3, positioning head - 31, sleeve - 4, deformation sheet - 41, driving device - 5, slide rail - 6, welding equipment - 7, welding pipe - 71, pipe fitting - B. Specific embodiments
[0025] Next, with reference to the accompanying drawings and embodiments, the present utility model will be further described in detail. It should be specifically noted that the following embodiments are only used to illustrate the present utility model, but do not limit the scope of the present utility model. Similarly, the following embodiments are only partial embodiments of the present utility model rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.
[0026] As Figures 1 to 7 shown, this solution provides a pipe fitting welding device.
[0027] Please refer to Figure 1 、 Figure 4 and Figure 6 , including a protective cover 2. The protective cover 2 includes a top cover 21, a notch 22 and an air inlet hole 23. The protective cover 2 is made of a light-transmitting material, which is convenient for the staff to observe the welding situation of the pipe fitting B during the welding process; the upper end surface of the protective cover 2 is provided with a top cover 21, and the protective cover 2 is provided with a notch 22 through which the welding pipe 71 of the welding equipment 7 passes; the top cover 21 is provided with at least one air inlet hole 23, and the inert gas enters the protective cover 2 through the air inlet hole 23.
[0028] Please refer to Figures 1 to 7, the protective cover 2 is covered on the pipe B, and an inert gas is introduced into the protective cover 2, and the inert gas includes but is not limited to argon. It also includes: a slide bar 3 and a sleeve 4, the slide bar 3 can be moved up and down and penetrated into the sleeve 4; it includes a plurality of deformable sheets 41, and the plurality of deformable sheets 41 can be opened and closed around the outer peripheral surface of the slide bar 3 to form the sleeve 4; specifically, the number of the deformable sheets 41 is four. A positioning head 31 is extended from one end of the slide bar 3 toward the open end of the sleeve 4, and the positioning head 31 is exposed outside the sleeve 4 with a wide top and a narrow bottom. Specifically, in this embodiment, the positioning head 31 is conical. The other end of the slide bar 3 is equipped with a driving device 5; the driving device 5 is a cylinder, and the pipe B is sleeved on the outside of the sleeve 4. When the driving device 5 drives the positioning head 31 to move into the sleeve 4, the positioning head 31 opens the plurality of deformable sheets 41, so that the plurality of deformable sheets 41 abut against the inner wall of the pipe B; thereby fixing the pipe B.
[0029] See also Figures 1 to 4 , and also includes a processing table 1, one end of which is fixed to the welding device 7. The processing table 1 is provided with a through hole 13, and the sleeve 4 is arranged on the driving device 5 to move up and down in the through hole 13; the protective cover 2 is fixed to the upper end surface of the processing table 1. Specifically, the processing table 1 is also provided with a groove 12, and the protective cover 2 is arranged in the groove 12. It also includes a slide rail 6, and the driving device 5 moves on the lower end surface of the processing table 1 through the slide rail 6. When the driving device 5 moves toward the processing table 1, the sleeve 4 is located in the protective cover 2. The slide rail 6 includes but is not limited to an electric slide rail.
[0030] See also Figure 7 , pipe fitting B is a corrugated pipe in a car.
[0031] Working principle: The cylinder is located at the end of the slide rail 6, and the pipe B is inserted into the sleeve 4. The slide rail 6 drives the cylinder to move toward the processing table 1 until the pipe B passes through the through hole 13 and reaches the preset position. The cylinder stops moving and drives the slide rod 3 to move downward. The positioning head 31 opens the deformation sheet 41, causing several deformation sheets 41 to abut against the inner wall of the pipe B, thereby fixing the pipe B.
[0032] Then, inert gas is introduced into the protective cover 2 through the air inlet 23 ; the welding device 7 is started, and the welding device 7 processes the pipe fitting B through the welding pipe 71 .
[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A pipe welding device, comprising a protective cover (2), wherein the protective cover (2) is disposed on a pipe (B), and an inert gas is introduced into the protective cover (2), characterized in that: Also includes: A slide bar (3) and a sleeve (4), wherein the slide bar (3) is arranged in the sleeve (4) so as to be movable upward and downward; and comprises a plurality of deformable sheets (41), wherein the plurality of deformable sheets (41) are arranged around the outer peripheral surface of the slide bar (3) so as to be openable and closable to form the sleeve (4); One end of the slide rod (3) is provided with a positioning head (31) extending toward the open end of the sleeve (4); the positioning head (31) is wide at the top and narrow at the bottom and is exposed outside the sleeve (4); the other end of the slide rod (3) is equipped with a driving device (5); the pipe fitting (B) is sleeved on the outside of the sleeve (4); when the driving device (5) drives the positioning head (31) to move toward the inside of the sleeve (4), the positioning head (31) spreads out the plurality of deformation sheets (41), causing the plurality of deformation sheets (41) to abut against the inner wall of the pipe fitting (B).
2. A pipe welding device according to claim 1, characterized in that: It also comprises a processing table (1), the processing table (1) is provided with a through hole (13), the sleeve (4) is arranged on a driving device (5) so as to move upward and downward in the through hole (13); and the protective cover (2) is fixedly arranged on the upper end surface of the processing table (1).
3. A pipe welding device as claimed in claim 2, characterized in that: It also includes a slide rail (6), and the driving device (5) moves on the lower end surface of the processing table (1) via the slide rail (6). When the driving device (5) moves toward the processing table (1), the sleeve (4) is located in the protective cover (2).
4. A pipe welding device as claimed in claim 1, characterized in that: The driving device (5) is a cylinder.
5. A pipe welding device as claimed in claim 1, characterized in that: The protective cover (2) is made of a light-transmitting material.
6. A pipe welding device as claimed in claim 5, characterized in that: It also comprises a welding device (7), the protective cover (2) is provided with a notch (22), and a welding pipe (71) of the welding device (7) is passed through the notch (22).
7. A pipe welding device as claimed in claim 1, characterized in that: The inert gas is argon.