Pipe welding unit

Abstract

The utility model discloses a pipe welding unit which comprises a base, a plurality of parallel guide rails are arranged on the base, a sliding plate is connected to the guide rails in a sliding mode, a plurality of transition shaft systems are installed on the sliding plate, each transition shaft system comprises a machine frame, and an upper shaft system and a lower shaft system are arranged in the machine frame in the vertical direction. One ends of the upper shaft system and the lower shaft system are connected with a shaft head of the flat roll device, and the other ends are connected with a universal transmission shaft of the transmission device; according to the pipe welding unit, the transmission device is used for driving the transition shaft system to move on the guide rail of the base, so that the spline is separated from the spline sleeve, namely the flat roller device is disassembled, the universal shaft does not need to be disassembled independently in the whole process, roller replacement of the whole unit can be achieved at a time, and rapidness and high efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to the field of steel processing equipment, in particular to a pipe welding unit. Background Art

[0002] At present, most of the welded pipe units in the industry adopt the ordinary W-forming process. The round pipe high-frequency straight seam welded pipe unit of this process needs to change the roll when producing products of different specifications. The whole unit includes the rough forming section, the fine forming section, the welding extrusion section and the sizing and straightening section. Because the roll change requires the use of a crane (especially the large-diameter welded pipe unit), the general manufacturer configures the roll change team according to the number of workshop cranes. The roll change operation at all stations will take a lot of time and manpower and material resources. According to on-site statistical data, it is found that in the case of two roll change teams, a small unit needs more than 12 hours to change the roll once, and a large unit needs at least 24 hours to complete a roll change operation. It can be seen that the roll change operation will take a lot of time and manpower and material resources. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a pipe welding device capable of quickly changing the rollers of the entire unit.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a welding pipe unit, including a base, a plurality of parallel guide rails are arranged on the base, a slide is slidably connected to the guide rails, a plurality of transition shaft systems are installed on the slide, the transition shaft system includes a frame, an upper shaft system and a lower shaft system are arranged in the frame along the vertical direction, one end of the upper shaft system and the lower shaft system are connected to the shaft head of the flat roller device, and the other end is connected to the universal transmission shaft of the transmission device.

[0005] Optionally, an inverted L-shaped pressing plate is fixed on the base, one end of the pressing plate is connected to the base, and the other end is in contact with the upper surface of the edge of the skateboard, so that the skateboard is wrapped under the pressing plate, and the skateboard can slide under the pressing plate.

[0006] Optionally, a spline sleeve and a spline are provided on one side where the upper shaft system and the lower shaft system are connected to the shaft head of the flat roller device, and the spline is connected to the upper shaft system or the lower shaft system, and the upper shaft system and / or the lower shaft system is connected to the shaft head of the flat roller device through the spline sleeve.

[0007] Optionally, two vertical slide grooves are provided on the inner side of the frame, and the upper shaft system is mounted in the slide grooves and can move in the vertical direction along the slide grooves.

[0008] Optionally, the top of the upper shaft system is connected to a driving device, and the driving device drives the upper shaft system to move in a vertical direction along the frame.

[0009] Optionally, the driving device includes a first motor, and the output shaft of the first motor is connected to the frame of the upper shaft system through a screw.

[0010] Optionally, the driving device includes a cylinder, and the output shaft of the cylinder is connected to the frame of the upper shaft system.

[0011] Optionally, the transmission device includes a second motor, and the output shaft of the second motor is connected to the upper shaft system and / or the lower shaft system through a universal joint shaft.

[0012] The beneficial effect of the utility model compared with the prior art is that the welding pipe unit utilizes the transmission device to drive the transition shaft system to move on the guide rail of the base, thereby realizing the disengagement of the spline and the spline sleeve, that is, realizing the disassembly of the flat roller device, and the universal shaft does not need to be disassembled separately during the whole process, and the roller replacement of the entire unit can be realized at one time, which is fast and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view of a pipe welding machine unit provided by the utility model;

[0014] Figure 2 It is a side view of a pipe welding machine unit provided by the utility model. DETAILED DESCRIPTION

[0015] 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 of 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.

[0016] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0017] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0018] In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and cannot be understood as limiting the scope of protection of this application. In addition, although the terms used in this application are selected from well-known and commonly used terms, some terms mentioned in the specification of this application may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article. In addition, it is required to understand this application not only by the actual terms used, but also by the meaning implied by each term.

[0019] Reference Figure 1 and Figure 2 The present embodiment provides a pipe welding machine unit, including a base 1, on which a plurality of parallel guide rails 11 are arranged, and a slide plate 2 is connected to the guide rails 11 through a slider 21, so that the slide plate 2 can move back and forth on the base 1 along the extension direction of the guide rails 11.

[0020] In this embodiment, in order to ensure the stability of the skateboard 2 during movement, an inverted L-shaped pressure plate 3 is provided on the edge of the skateboard 2. One end of the pressure plate 3 is connected to the base 1, and the other end contacts the upper surface of the edge of the skateboard 2, wrapping the skateboard 2 under the pressure plate 3. At the same time, the skateboard 2 can slide under the pressure plate 3 while ensuring that the skateboard 2 will not fall off the base 1 due to vibration, thereby improving the stability of the roller changing process.

[0021] In this embodiment, a plurality of transition shaft systems 4 are installed on the skateboard 2, and the transition shaft system 4 includes a frame 41, in which an upper shaft system 42 and a lower shaft system 43 are arranged in a vertical direction, and one end of the upper shaft system 42 and the lower shaft system 43 are connected to the shaft head of the flat roller device (not shown in the figure), and the other end is connected to the universal transmission shaft of the transmission device 6.

[0022] Specifically, a spline sleeve 51 and a spline 52 are provided on one side where the upper shaft system 42 and the lower shaft system 43 are connected to the shaft head of the flat roller device. The spline 51 is connected to the upper shaft system 42 or the lower shaft system 43, and the upper shaft system 42 and / or the lower shaft system 43 are connected to the shaft head of the flat roller device through the spline sleeve 51.

[0023] In this embodiment, the transmission device 6 includes a second motor (not shown in the figure), and the output shaft of the second motor is connected to the upper shaft system 42 and / or the lower shaft system 43 through a universal transmission shaft.

[0024] In this embodiment, two vertical slide grooves 411 are provided inside the frame 41, and the upper shaft system 42 is mounted in the slide grooves 411 and can move vertically along the slide grooves 411. Specifically, the top of the upper shaft system 42 is connected to a driving device 421, and the driving device 421 drives the upper shaft system 42 to move vertically along the frame 41.

[0025] In this embodiment, the driving device 421 includes a first motor 4211 , and the output shaft of the first motor 4211 is connected to the frame of the upper shaft system 42 through a screw rod 4212 .

[0026] In some other embodiments, the driving device 421 includes a cylinder, and the output shaft of the cylinder is connected to the frame of the upper shaft system 42.

[0027] When the pressure roller needs to be replaced, the transmission device 6 provides power to pull the splines 51 of the upper shaft system 42 and the lower shaft system 43 toward the transmission device 6 side, so that the splines 51 are disengaged from the spline sleeve 52. There is no need to disassemble the universal shaft separately. After the transmission device 6 drives all the splines 51 on the overall slide plate 2 to disengage and fix them on the spline sleeve 52 of the flat roller rotating shaft, the roller replacement process on the flat roller device side is continued to complete the roller replacement. After the roller replacement is completed, when the transmission device 6 is reconnected, the transmission device 6 pushes the slide plate 2 to move toward the flat roller device side. Since the lengths of the splines 51 in the transition shaft system 4 are different, when the longest spline 51 is about to engage with the spline sleeve 52 at the flat roller device end, the operator starts the transmission device 6 to rotate at a low speed to complete the matching of the splines 51 and the spline sleeve 52, and then completes the matching of the remaining splines 51 and the spline sleeve 52 in turn to complete the overall roller replacement work.

[0028] The welding pipe unit utilizes the transmission device 6 to drive the transition shaft system 4 to move on the guide rail of the base 1, so as to realize the disengagement of the spline 51 and the spline sleeve 52, that is, to realize the disassembly of the flat roller device. The whole process does not require the universal shaft to be disassembled separately, and the roller replacement of the whole unit can be realized at one time, which is fast and efficient.

[0029] The above description is only an implementation method of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present utility model.

Claims

1. A pipe welding unit, characterized in that: It includes a base, on which a plurality of parallel guide rails are arranged, on which a slide plate is slidably connected, on which a plurality of transition shaft systems are installed, and the transition shaft system includes a frame, in which an upper shaft system and a lower shaft system are arranged in a vertical direction, one end of the upper shaft system and the lower shaft system are connected to the shaft head of a flat roller device, and the other end is connected to the universal transmission shaft of a transmission device.

2. The pipe welding unit according to claim 1, characterized in that: An inverted L-shaped pressing plate is fixed on the base, one end of the pressing plate is connected to the base, and the other end contacts the upper surface of the edge of the slide plate, wrapping the slide plate under the pressing plate, and the slide plate can slide under the pressing plate.

3. The pipe welding unit according to claim 1, characterized in that: A spline sleeve and a spline are provided on one side where the upper shaft system and the lower shaft system are connected to the shaft head of the flat roller device. The spline is connected to the upper shaft system or the lower shaft system, and the upper shaft system and / or the lower shaft system are connected to the shaft head of the flat roller device through the spline sleeve.

4. The pipe welding unit according to claim 1, characterized in that: Two vertical slide grooves are arranged inside the frame, and the upper shaft system is mounted in the slide grooves and can move in the vertical direction along the slide grooves.

5. The pipe welding unit according to claim 4, characterized in that: The top of the upper shaft system is connected to a driving device, and the driving device drives the upper shaft system to move in a vertical direction along the frame.

6. The pipe welding unit according to claim 5, characterized in that: The driving device comprises a first motor, and an output shaft of the first motor is connected to the frame of the upper shaft system through a screw rod.

7. The pipe welding unit according to claim 5, characterized in that: The driving device comprises a cylinder, and an output shaft of the cylinder is connected to the frame of the upper shaft system.

8. The pipe welding unit according to claim 1, characterized in that: The transmission device comprises a second motor, and the output shaft of the second motor is connected to the upper shaft system and / or the lower shaft system via a universal transmission shaft.

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