Welding device for steel lining polytetrafluoroethylene pipeline production

Abstract

The utility model relates to the technical field of welding, and discloses a welding device for steel lining polytetrafluoroethylene pipeline production, a fixing device is composed of a first spring, an arc-shaped block, a fixing block, a pull rod, a fixing piece, a connecting rod, a limiting block, a second spring, a fixing column, a connecting strip and a limiting column, the arc-shaped block is slidably installed in the second semicircular clamp, the fixing block is fixedly installed on the side face of the arc-shaped block, the pull rod is slidably installed in the first semicircular clamp, the fixing piece is fixedly installed on the side face of the pull rod, and the connecting rod is fixedly installed on the side face of the fixing piece. According to the welding device for steel lining polytetrafluoroethylene pipeline production, by rotating a fixing column, a limiting column enters a sliding groove, under the action of a first spring, an arc-shaped block can enter a first semicircular clamp, under the action of a second spring, a limiting block can limit a fixing block, and use is rapid and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a welding device for producing steel-lined polytetrafluoroethylene pipelines. Background Art

[0002] Steel-lined PTFE pipes, steel-lined polytetrafluoroethylene PTFE pipes and accessories are known as the "King of Plastics". They have excellent temperature resistance and corrosion resistance and are ideal for conveying highly corrosive media such as nitric acid, sulfuric acid, hydrofluoric acid, phosgene, chlorine, aqua regia, mixed acid, bromide and other organic solvents.

[0003] The patent with application number 202320694319.3 discloses a steel-lined polytetrafluoroethylene pipe welding device, including a fixed card, a first semicircular card and a second semicircular card are respectively arranged on the front side of the fixed card, the surface sliding card of the first semicircular card is provided with a rotating mechanism, and the first semicircular card and the second semicircular card are both provided with a rotating groove for the rotating mechanism to rotate, a welding head is embedded in the interior of the rotating mechanism, and the bottom of the welding head is electrically connected to a connecting wire.

[0004] The steel-lined polytetrafluoroethylene pipe welding device, through a rotating mechanism, can perform circular rotation in the rotating grooves provided inside the first semicircular clamp and the second semicircular clamp, so as to drive the welding head to rotate 360 ​​degrees to weld the welding point. However, there are still areas that can be improved. For example, the device is not convenient to install and disassemble, which affects the efficiency of the device and cannot meet current needs. Utility Model Content

[0005] The utility model aims to provide a welding device for producing steel-lined polytetrafluoroethylene pipes to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding device for the production of steel-lined polytetrafluoroethylene pipes, comprising a first semicircular clamp, a second semicircular clamp, a welding assembly, and a fixing device, wherein the second semicircular clamp is arranged on the side of the first semicircular clamp, the welding assembly is arranged on the surface of the second semicircular clamp, and the fixing device is arranged inside the second semicircular clamp.

[0007] The fixing device is composed of a first spring, an arc block, a fixed block, a pull rod, a fixed plate, a connecting rod, a limit block, a second spring, a fixed column, a connecting strip, and a limit column. The first spring is fixedly installed inside the second semicircular card, the arc block is slidably installed inside the second semicircular card, the fixed block is fixedly installed on the side of the arc block, the pull rod is slidably installed inside the first semicircular card, the fixed plate is fixedly installed on the side of the pull rod, the connecting rod is fixedly installed on the side of the fixed plate, the limit block is fixedly installed on the side of the connecting rod, the second spring is sleeved on the surface of the pull rod, the fixed column is rotatably installed on the side of the arc block, the connecting strip is fixedly installed on the surface of the fixed column, and the limit column is fixedly installed on the side of the connecting strip.

[0008] Preferably, the surfaces of the fixed block and the limiting block are both beveled, and a limiting groove matching the limiting block is opened inside the fixed block. This setting allows the fixed block to slide on the surface of the limiting block, and the opened limiting groove enables the limiting block to limit the fixed block.

[0009] Preferably, the first springs are distributed in a linear array inside the second semicircular clamp, and the other end of the first spring connected to the second semicircular clamp is fixedly connected to the arc block, and multiple first springs are provided to better reset the arc block.

[0010] Preferably, one end of the second spring is connected to the first semicircular clamp, and the other end of the second spring is connected to the fixing plate, and a second spring is provided for resetting the fixing plate.

[0011] Preferably, arc grooves matching the arc block are provided inside the first semicircular card and the second semicircular card, and the arc grooves are provided to facilitate the arc block to slide inside the first semicircular card and the second semicircular card.

[0012] Preferably, a sliding groove matching the fixed column is provided inside the second semicircular card, and a semicircular groove matching the limiting column is provided inside the second semicircular card, and the sliding groove and the semicircular groove are connected. The sliding groove facilitates the movement of the fixed column, and the semicircular groove can limit the limiting column, thereby fixing the fixed column.

[0013] Preferably, a rubber sleeve is provided on the surface of the fixing column, and the rubber sleeve is provided to facilitate the movement and rotation of the fixing column.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The welding device for producing steel-lined polytetrafluoroethylene pipes rotates the fixed column to allow the limit column to enter the slide groove. Under the action of the first spring, the arc block can enter the first semicircular clamp. Under the action of the second spring, the limit block can limit the fixed block. The use is quick and convenient.

[0016] (2) The welding device for producing steel-lined polytetrafluoroethylene pipes moves the fixed column by pulling the pull rod, so that the arc block is separated from the first semicircular clamp, and the fixed column is rotated so that the limit column enters the semicircular groove, thereby fixing the fixed column for the next use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the second semicircular clamp, welding assembly and fixing device of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the fixed column, the connecting strip and the limiting column of the utility model;

[0020] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure at point A;

[0021] Figure 5 It is a schematic structural diagram of the first spring, the arc block and the fixed block of the utility model.

[0022] In the figure: 1. first semicircular clamp; 2. second semicircular clamp; 3. welding assembly; 4. fixing device; 401. first spring; 402. arc block; 403. fixing block; 404. pull rod; 405. fixing plate; 406. connecting rod; 407. limiting block; 408. second spring; 409. fixing column; 410. connecting strip; 411. limiting column. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-5The utility model provides a technical solution: a welding device for the production of steel-lined polytetrafluoroethylene pipes, comprising a first semicircular clamp 1, a second semicircular clamp 2, a welding assembly 3, and a fixing device 4. The second semicircular clamp 2 is arranged on the side of the first semicircular clamp 1, the welding assembly 3 is arranged on the surface of the second semicircular clamp 2, and the fixing device 4 is arranged inside the second semicircular clamp 2.

[0025] The fixing device 4 is composed of a first spring 401, an arc block 402, a fixing block 403, a pull rod 404, a fixing sheet 405, a connecting rod 406, a limiting block 407, a second spring 408, a fixing column 409, a connecting strip 410, and a limiting column 411. The first spring 401 is fixedly installed inside the second semicircular card 2, and the arc block 402 is slidably installed inside the second semicircular card 2. The first semicircular card 1 and the second semicircular card 2 are both provided with an arc groove matching the arc block 402. The arc groove is provided to facilitate the arc block 402 to slide inside the first semicircular card 1 and the second semicircular card 2. The first springs 401 are distributed in a linear array inside the second semicircular card 2, and the other end of the first spring 401 connected to the second semicircular card 2 is fixedly connected to the arc block 402, and multiple first springs 401 are provided for better resetting the arc block 402. The fixed block 403 is fixedly installed on the side of the arc block 402, the pull rod 404 is slidably installed inside the first semicircular card 1, the fixed sheet 405 is fixedly installed on the side of the pull rod 404, the connecting rod 406 is fixedly installed on the side of the fixed sheet 405, the limit block 407 is fixedly installed on the side of the connecting rod 406, and the fixed block 403 and the limit The surfaces of the blocks 407 are all beveled, and a limiting groove matching the limiting block 407 is provided inside the fixed block 403. This setting allows the fixed block 403 to slide on the surface of the limiting block 407, and the limiting groove allows the limiting block 407 to limit the fixed block 403. The second spring 408 is sleeved on the surface of the pull rod 404, one end of the second spring 408 is connected to the first semicircular clamp 1, and the other end of the second spring 408 is connected to the fixing plate 405. The second spring 408 is provided for resetting the fixing plate 405. The fixing column 409 is rotatably installed on the side of the arc block 402. The surface of the fixed column 409 is provided with a rubber sleeve, which facilitates the movement and rotation of the fixed column 409. The connecting strip 410 is fixedly installed on the surface of the fixed column 409, and the limiting column 411 is fixedly installed on the side of the connecting strip 410. The interior of the second semicircular card 2 is provided with a sliding groove matching the fixed column 409, and the interior of the second semicircular card 2 is provided with a semicircular groove matching the limiting column 411, and the sliding groove and the semicircular groove are connected. The sliding groove is provided to facilitate the movement of the fixed column 409, and the semicircular groove can limit the limiting column 411, thereby fixing the fixed column 409.

[0026] When in use, the first semicircular clamp 1 and the second semicircular clamp 2 are correspondingly clamped at the position where the PTFE pipe needs to be welded, and the fixing column 409 is rotated to make the connecting strip 410 drive the limiting column 411 to rotate, so that the limiting column 411 enters the slide groove. Under the action of the first spring 401, the arc block 402 can enter the first semicircular clamp 1, so that the fixing block 403 slides on the surface of the limiting block 407. Under the action of the second spring 408, the limiting block 407 can enter the limiting groove to limit the fixing block 403. It is quick and convenient to use. Pull the pull rod 404 to make the limiting block 407 disengage from the limiting groove, release the limit on the fixing block 403, move the fixing column 409, so that the arc block 402 disengages from the first semicircular clamp 1, and rotate the fixing column 409 so that the connecting strip 410 drives the limiting column 411 to enter the semicircular groove, thereby fixing the fixing column 409 for the next use.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including 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 device.

[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A welding device for producing steel-lined polytetrafluoroethylene pipes, comprising a first semicircular clamp (1), a second semicircular clamp (2), a welding assembly (3), and a fixing device (4), characterized in that: The second semicircular clamp (2) is arranged on the side of the first semicircular clamp (1), the welding assembly (3) is arranged on the surface of the second semicircular clamp (2), and the fixing device (4) is arranged inside the second semicircular clamp (2); The fixing device (4) is composed of a first spring (401), an arc block (402), a fixing block (403), a pull rod (404), a fixing sheet (405), a connecting rod (406), a limiting block (407), a second spring (408), a fixing column (409), a connecting strip (410), and a limiting column (411); the first spring (401) is fixedly installed inside the second semicircular clamp (2); the arc block (402) is slidably installed inside the second semicircular clamp (2); the fixing block (403) is fixedly installed on the side of the arc block (402); the pull rod (404) It is slidably installed inside the first semicircular clamp (1), the fixing plate (405) is fixedly installed on the side of the pull rod (404), the connecting rod (406) is fixedly installed on the side of the fixing plate (405), the limiting block (407) is fixedly installed on the side of the connecting rod (406), the second spring (408) is sleeved on the surface of the pull rod (404), the fixing column (409) is rotatably installed on the side of the arc block (402), the connecting strip (410) is fixedly installed on the surface of the fixing column (409), and the limiting column (411) is fixedly installed on the side of the connecting strip (410).

2. A welding device for producing steel-lined polytetrafluoroethylene pipes according to claim 1, characterized in that: The surfaces of the fixing block (403) and the limiting block (407) are both beveled, and a limiting groove matching the limiting block (407) is provided inside the fixing block (403).

3. A welding device for producing steel-lined polytetrafluoroethylene pipes according to claim 1, characterized in that: The first springs (401) are distributed in a linear array inside the second semicircular clamp (2), and the other end of the first spring (401) connected to the second semicircular clamp (2) is fixedly connected to the arc block (402).

4. A welding device for producing steel-lined polytetrafluoroethylene pipes according to claim 1, characterized in that: One end of the second spring (408) is connected to the first semicircular clamp (1), and the other end of the second spring (408) is connected to the fixing plate (405).

5. A welding device for producing steel-lined polytetrafluoroethylene pipes according to claim 1, characterized in that: The first semicircular clamp (1) and the second semicircular clamp (2) are both provided with arc-shaped grooves matching the arc-shaped block (402) inside.

6. A welding device for producing steel-lined polytetrafluoroethylene pipes according to claim 1, characterized in that: A sliding groove matching the fixing column (409) is provided inside the second semicircular clamp (2), and a semicircular groove matching the limiting column (411) is provided inside the second semicircular clamp (2), and the sliding groove and the semicircular groove are connected.

7. A welding device for producing steel-lined polytetrafluoroethylene pipes according to claim 1, characterized in that: A rubber sleeve is provided on the surface of the fixing column (409).

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