Fixing and clamping device for pipeline welding

Abstract

The utility model discloses a pipeline welding, fixing and clamping device which comprises a base, supporting plates are fixed to the left side and the right side of the base respectively, a clamping jaw is arranged on the inner side of each supporting plate and composed of two clamping arms, each clamping arm is in an L shape, the middle of each clamping arm is hinged to the corresponding supporting plate, and contact idler wheels are installed at the upper end and the lower end of each clamping arm respectively. The two clamping arms are driven by a vertical sliding block to be opened and closed, the vertical sliding block is assembled on the supporting plate and located below the two clamping arms, a front side inclined face and a rear side inclined face which make contact with the lower ends of the two clamping arms respectively are arranged, a supporting idler wheel is installed on the top of the vertical sliding block, an inclined face is arranged on the front side of the bottom of the vertical sliding block, and the vertical sliding block is driven by a longitudinal sliding block. The longitudinal sliding block is assembled on the base, the upper portion of the front end of the longitudinal sliding block is provided with an end slope in sliding fit with the bottom slope of the vertical sliding block, and the longitudinal sliding block is driven by a spiral transmission mechanism. The welding pipeline fixing device can well stabilize a welding pipeline and has high applicability.

Description

Technical Field

[0001] The utility model relates to a welding auxiliary device, in particular to a pipeline welding fixing clamping device. Background Art

[0002] Pipelines are widely used in the petroleum, natural gas, chemical and other industries. Pipelines often need to be maintained and repaired during operation. One of the important tasks is pipeline welding. During the pipeline welding process, in order to ensure the welding quality, tooling must be used to fix the pipe mouth to avoid displacement, deformation, twisting and other adverse phenomena.

[0003] Most existing welding tools use a simple clamping structure. During the welding process, the pipeline has poor stability and is easy to loosen, affecting the welding quality. At the same time, most welding tools can only clamp pipes of fixed sizes and cannot be used to clamp pipes of different diameters, so they are not very applicable. Utility Model Content

[0004] The utility model provides a pipeline welding fixing clamping device to solve the technical problems existing in the known technology, which can well stabilize the welded pipeline and has strong applicability.

[0005] The utility model adopts the technical scheme to solve the technical problems existing in the known technology: a pipe welding fixing clamping device, comprising a base, a support plate extending laterally is fixed on the left and right sides of the base, a clamping mouth is arranged on the inner side of the support plate, the clamping mouth is composed of two clamping arms, the clamping arm is L-shaped, the middle part is hinged with the support plate, and contact rollers are installed at both ends, the two clamping arms are driven to open and close by a vertical slider, the vertical slider is mounted on the support plate, is located below the two clamping arms, and is provided with a front side inclined surface and a rear side inclined surface respectively contacting the lower ends of the two clamping arms, a support roller is installed on the top of the vertical slider, and an inclined surface is arranged on the front side of the bottom of the vertical slider, the vertical slider is driven by a longitudinal slider, the longitudinal slider is mounted on the base, and the upper front end is provided with an end inclined surface slidingly matched with the bottom inclined surface of the vertical slider, the two longitudinal sliders are fixedly connected with a push rod perpendicular to the push rod, and the push rod is driven by a group of spiral transmission mechanisms, and the spiral transmission mechanism is mounted on the base.

[0006] The vertical sliding block has a front inclined surface which is a backward inclined surface, a rear inclined surface which is a forward inclined surface, and a bottom front inclined surface which is a forward inclined surface.

[0007] The longitudinal sliding block is connected to the base via a trapezoidal groove.

[0008] The spiral transmission mechanism is driven by a motor.

[0009] The vertical sliding block is connected to the supporting plate via a sliding groove and a sliding block.

[0010] The advantages and positive effects of the utility model are: by using a spiral transmission mechanism to drive the longitudinal slider, the longitudinal slider pushes the vertical slider through the inclined surface, and then drives the clamping jaws to open or tighten, so as to achieve the clamping of the pipe, the welded pipe can be well stabilized, and the displacement and shaking of the pipe can be avoided, the welding quality and the accuracy of the connection can be improved, the occurrence of accidents can be reduced, the safety of welding operations can be improved, the pipe can be kept stable during the welding process, and the poor welding problems caused by the shaking or displacement of the pipe can be avoided, thereby shortening the welding time and improving the production efficiency. In addition, the utility model can be applied to pipes of different diameters by using the clamping jaws to clamp the pipe, and has strong applicability. At the same time, the utility model is simple to operate and can improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of a three-dimensional front view of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the installation structure of the longitudinal slider of the utility model;

[0013] Figure 3 It is a three-dimensional front view schematic diagram of the local structure of the utility model;

[0014] Figure 4 for Figure 3 Explosion diagram of

[0015] Figure 5 It is a schematic diagram of the partial structure explosion of the utility model.

[0016] In the figure: 1. base; 2. slide groove; 3. trapezoidal groove; 4. longitudinal slider; 5. push rod; 6. screw transmission mechanism; 7. motor; 8. support plate; 9. vertical slider; 10. mounting frame; 11. support roller; 12. clamping arm; 13. contact roller; 14. slider. DETAILED DESCRIPTION

[0017] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0018] See also Figure 1 to Figure 5 A pipe welding fixing clamping device comprises a base 1, a support plate 8 extending laterally is fixed on the left and right sides of the base 1, a clamping opening is provided on the inner side of the support plate 8, and the clamping opening is composed of two clamping arms 12. The clamping arm 12 is L-shaped, the middle part is hinged to the support plate 8, and contact rollers 13 are installed at the upper and lower ends.

[0019] The two clamping arms 12 are driven to open and close by the vertical slider 9, which is mounted on the support plate 8, located below the two clamping arms 12, and is provided with a front inclined surface and a rear inclined surface respectively contacting the lower ends of the two clamping arms 12, and a support roller 11 is installed on the top of the vertical slider 9, and the support roller 11 is provided with a mounting frame 10. An inclined surface is provided on the front side of the bottom of the vertical slider 9.

[0020] The vertical slider 9 is driven by the longitudinal slider 4. The longitudinal slider 4 is assembled on the base 1 and has an end inclined surface at the upper front end that slides with the bottom inclined surface of the vertical slider. The two longitudinal sliders 4 are fixedly connected to a push rod 5 perpendicular to them. The push rod 5 is driven by a set of spiral transmission mechanisms 6, and the spiral transmission mechanisms 6 are installed on the base 1.

[0021] In this embodiment, the vertical slider 9 has a front inclined surface that is a backward inclined surface, a rear inclined surface that is a forward inclined surface, and a bottom front inclined surface that is a forward inclined surface. The top is small and the bottom is large, and the structure is stable. The longitudinal slider 4 is connected to the base 1 through a trapezoidal groove, and the reliability is high. The spiral transmission mechanism 6 is driven by a motor, and the structure is simple and the technology is mature. The vertical slider 9 is connected to the support plate 8 through the slide groove 2 and the slider 4, and the structure is simple and the performance is stable.

[0022] When using, first start the spiral transmission mechanism, withdraw the longitudinal slider, lower the vertical slider, open the clamping jaws, put the two butted pipes into the two clamping jaws respectively, adjust the welding joint, and then start the spiral transmission mechanism again to move the longitudinal slider forward, push the vertical slider up, clamp the clamping jaws, fix the two butted pipes, and then you can weld. After welding, open the clamping jaws to take out the welded pipes. The operation is simple and efficient.

[0023] Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which all fall within the scope of protection of the present invention.

Claims

1. A pipeline welding fixing clamping device, characterized in that: The invention comprises a base, a support plate extending laterally is fixed on the left and right sides of the base, a clamping opening is arranged on the inner side of the support plate, and the clamping opening is composed of two clamping arms, the clamping arms are L-shaped, the middle part is hinged to the support plate, and contact rollers are installed at the upper and lower ends. The two clamping arms are driven to open and close by a vertical slider, which is mounted on the support plate and is located below the two clamping arms. It is provided with a front inclined surface and a rear inclined surface which are respectively in contact with the lower ends of the two clamping arms. A supporting roller is installed on the top of the vertical slider, and an inclined surface is provided on the front side of the bottom of the vertical slider. The vertical slider is driven by the longitudinal slider, which is assembled on the base and has an end inclined surface at the upper front end that slides with the bottom inclined surface of the vertical slider. The two longitudinal sliders are fixedly connected to a push rod perpendicular to them, and the push rod is driven by a set of spiral transmission mechanisms, which are installed on the base.

2. The pipeline welding fixing clamping device according to claim 1 is characterized in that: The vertical sliding block has a front inclined surface which is a backward inclined surface, a rear inclined surface which is a forward inclined surface, and a bottom front inclined surface which is a forward inclined surface.

3. The pipeline welding fixing clamping device according to claim 1 is characterized in that: The longitudinal sliding block is connected to the base via a trapezoidal groove.

4. The pipeline welding fixing clamping device according to claim 1 is characterized in that: The spiral transmission mechanism is driven by a motor.

5. The pipeline welding fixing clamping device according to claim 1 is characterized in that: The vertical sliding block is connected to the supporting plate via a sliding groove and a sliding block.

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