Automatic milling production line for longitudinal joints of pipe bodies

Abstract

The utility model discloses an automatic milling production line for a longitudinal seam of a pipe body. The automatic milling production line comprises a pipe body supporting and fixing device and a longitudinal seam milling device, the pipe body supporting and fixing device comprises a supporting carrying table and a milling channel arranged at the bottom of the supporting carrying table, and the supporting carrying table is provided with a milling open groove opposite to the milling channel and a pipe body supporting and limiting mechanism used for supporting a pipe body. The longitudinal seam milling device comprises a linear rail penetrating through the milling channel and a milling mechanism which is arranged on the linear rail and has linear displacement, a milling main shaft with lifting displacement is arranged on the milling mechanism, and a milling disc matched with the milling open groove is arranged on the milling main shaft. The pipe body longitudinal seam milling device meets the requirement for pipe body longitudinal seam milling, and longitudinal seam milling operation is efficient and smooth. The pipe body is convenient to carry and fix, the relative axial position of the pipe body is reliable and stable, and the milling stability and the milling quality are guaranteed. Milling amount control can be achieved through height adjustment, and meanwhile linear driving and lifting driving are smooth, stable and reliable.

Description

Technical Field

[0001] This utility model relates to an automated milling production line for longitudinal seams of pipes, belonging to the technical field of longitudinal seam milling of large pipes. Background Technology

[0002] Large pipes are widely used in the construction, industrial manufacturing, municipal engineering, and energy sectors. Pipes can be classified by material, including plastic, metal, and concrete.

[0003] For large metal pipes, welding is required for pipe forming. The pipe is made by rolling sheet metal into a tubular structure, and the longitudinal seams of the joints need to be welded. Due to the thickness and large volume of the sheet metal, the longitudinal seams are open and expanding. This open and expanding structure will affect the welding quality and welding stability.

[0004] Therefore, before the sheet metal is rolled into a tubular structure, the two ends of the splice need to be beveled. After beveling, the splice seam can be aligned more neatly. However, due to the large diameter and wall thickness of the tubular structure, direct welding after splicing cannot meet the welding strength requirements. It is necessary to mill the weld seam to a certain specification on the inner and outer sides of the splice seam to facilitate welding operations and increase the welding area. The welding of the inner and outer sides is carried out in steps. The inner side has a smaller splice tolerance and is easier to operate. Therefore, the inner side weld seam is pre-welded first, and then the outer side weld seam is welded. During the welding of the inner side weld seam, it will be affected by the butt joint position, welding temperature, etc., which will cause a certain degree of flatness deformation difference in the outer side weld seam. Therefore, it is necessary to pre-weld the inner side weld seam and then use it as a reference to mill the weld seam of the outer splice seam.

[0005] The milling of this weld seam is generally carried out manually or with wire cutting equipment. The pre-formed pipe body is large in volume and weight, making the milling of the weld seam quite difficult. Traditional pipe longitudinal seam welding equipment uses the displacement of the pipe to achieve the milling end, but it cannot achieve the displacement drive of large pipes. Another method is to expose the splice seam side and use the linear displacement of the milling equipment. However, the uniformity of the stress on the pipe is poor, resulting in irregular deformation of the splice seam and making it difficult to ensure the roundness of the pipe. In addition, the relative position of the milling equipment and the splice seam is also difficult to ensure, and the product quality cannot be controlled. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and to address the problems of difficult longitudinal seam milling of traditional pipes and the difficulty in ensuring the forming quality. It proposes an automated milling production line for longitudinal seams of pipes.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] An automated milling production line for longitudinal seams of pipes includes a pipe support and fixing device and a longitudinal seam milling device;

[0009] The pipe support and fixing device includes a support platform and a milling channel disposed at the bottom of the support platform. The support platform is provided with a milling slot disposed opposite to the milling channel and a pipe support limiting mechanism for supporting the pipe.

[0010] The longitudinal slot milling device includes a linear guide that passes through the milling channel and a milling mechanism with linear displacement mounted on the linear guide. The milling mechanism is provided with a milling spindle with lifting displacement, and the milling spindle is provided with a milling disc that cooperates with the milling slot.

[0011] Preferably, the tube body support and limiting mechanism includes a plurality of support slides arranged parallel to each other along the milling groove direction, each support slide includes two mating support slides arranged symmetrically relative to the milling groove, and each mating support slide is provided with a tube body limiting support block with adjustable position.

[0012] Preferably, any of the tube body limiting support blocks is provided with two spaced-apart limiting abutment arc walls for abutting the tube body.

[0013] Preferably, the linear guide includes two spaced-apart support slides that are slidably connected to the milling mechanism, and each of the support slides has a toothed row on its sidewall;

[0014] The milling mechanism is provided with at least one travel drive unit, which includes a travel rotation source and a meshing drive tooth disposed on the rotating end of the travel drive source and meshing with the tooth row.

[0015] Preferably, the milling mechanism includes a milling base, the traveling rotation source is disposed on the milling base, and a spindle platform with lifting displacement for mounting the milling spindle and a lifting drive source driven by the spindle platform are slidably connected to the milling base.

[0016] Preferably, the lifting drive source includes two lifting drive units spaced apart along the direction of the linear guide. Each lifting drive unit includes a lifting rotating body and a rotating lead screw that is connected to the lifting rotating body. The main shaft platform is provided with a transmission lifting seat that corresponds to the rotating lead screw.

[0017] Preferably, the milling mechanism includes a milling chip guide located at the bottom of the milling disc.

[0018] Preferably, the longitudinal milling device includes a milling chip collection mechanism, which includes a receiving bin for receiving the milling chip guide plate and a chip conveyor belt located at the bottom of the receiving bin.

[0019] Preferably, it includes a production line base, wherein the production line base is provided with a recessed cavity space;

[0020] The support platform is bridged to a set of opposing side walls in the recessed cavity, and the longitudinal slit milling device is located within the recessed cavity.

[0021] Preferably, a protective grid is provided on the outer periphery of the recessed cavity, and the protective grid is provided with grid intervals for loading and unloading the tube.

[0022] The beneficial effects of this utility model are mainly reflected in:

[0023] 1. Meets the requirements for longitudinal seam milling of pipes, and the longitudinal seam milling operation is efficient and smooth.

[0024] 2. It facilitates the mounting and fixing of the tube body, and ensures reliable and stable axial position of the tube body, thus guaranteeing milling stability and quality.

[0025] 3. Milling amount can be controlled through height adjustment, and the linear drive and lifting drive are smooth, stable and reliable.

[0026] 4. It is adaptable to longitudinal seam milling of various types of pipes and has strong production line versatility. Attached Figure Description

[0027] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the structure of an automated milling production line for longitudinal seams of pipes according to this utility model.

[0029] Figure 2 This is a schematic diagram of the structure of a pipe support and fixing device in an automated milling production line for longitudinal seams of pipes according to this utility model.

[0030] Figure 3 This is a schematic diagram of the longitudinal seam milling device in an automated milling production line for pipe longitudinal seams according to this utility model.

[0031] Figure 4 This is a partial structural schematic diagram of a longitudinal seam milling device in an automated milling production line for pipe longitudinal seams according to this utility model.

[0032] Figure 5 This is a schematic diagram of the milling mechanism in an automated milling production line for longitudinal seams of pipes according to this utility model.

[0033] Figure 6 This is a schematic diagram of the overall structure of a longitudinal seam milling device in an automated milling production line for pipe longitudinal seams according to this utility model. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in the present application can be combined with each other.

[0036] This utility model provides an automated milling production line for longitudinal seams of pipes, such as... Figures 1 to 6 As shown, it includes a pipe body support and fixing device 1 and a longitudinal slit milling device 2.

[0037] like Figure 2 As shown, the pipe support and fixing device 1 includes a support platform 3 and a milling channel 4 set at the bottom of the support platform 3. The support platform 3 is provided with a milling slot 30 arranged opposite to the milling channel and a pipe support limiting mechanism 5 for supporting the pipe.

[0038] like Figure 3 As shown, the longitudinal slot milling device 2 includes a linear guide 20 that passes through the milling channel 4, a milling mechanism 6 with linear displacement set on the linear guide 20, a milling spindle 7 with lifting displacement on the milling mechanism 6, and a milling disc 70 that cooperates with the milling slot on the milling spindle 7.

[0039] Detailed implementation process and principle explanation:

[0040] When the pipe body is longitudinally milled, the pipe body is mounted on the support platform 3, and the longitudinal seam of the pipe body is adjusted to be aligned with the milled groove 30. Then, the pipe body is locked by the pipe body support and limiting mechanism 5.

[0041] After the pipe body is installed and locked in place, the milling mechanism 6 moves linearly along the rail 20 through the milling channel 4. The milling spindle adjusts the milling height by lifting and lowering. During the linear displacement of the milling mechanism 6, the milling disc 70 passes through the milling slot to mill the longitudinal seam of the pipe body, thus meeting the requirements for weld formation.

[0042] In one specific embodiment, the pipe body support limiting mechanism 5 includes a plurality of support slides 51 arranged parallel to each other along the milling groove direction. Each support slide 51 includes two mating support slides arranged symmetrically relative to the milling groove. Each mating support slide is provided with a pipe body limiting support block 52 whose position is adjustable.

[0043] That is, by using two relatively adjustable tube body limiting support blocks 52, the relative position degree can be adjusted to achieve clamping and limiting of both ends of the tube body in the axial direction, so as to fix the requirements. Multiple symmetrically coordinated tube body limiting support blocks 52 can achieve multi-position clamping, thereby ensuring the axial stability of the tube body.

[0044] In one specific embodiment, the arbitrary tube limiting support block 52 is provided with two spaced-apart limiting abutment arc walls 520 for abutting the tube.

[0045] The two spaced limiting abutment arc walls 520 make the fit between the tube body limiting support block 52 and the outer peripheral wall of the tube body more reliable and stable, and the fixing effect is significantly improved.

[0046] In one specific embodiment, such as Figure 4 As shown, the linear guide 20 includes two sliding milling mechanism support rails 21 arranged at intervals, and a toothed row 22 is provided on the side wall of each support rail.

[0047] The milling mechanism 6 is provided with at least one travel drive unit 8, which includes a travel rotation source 81 and a meshing drive tooth 82 disposed on the rotating end of the travel drive source and meshing with the tooth row.

[0048] Specifically, the rotating source 81 rotates the meshing drive teeth 82, and under the reverse force of the tooth row 22, the milling mechanism 6 generates a linear displacement relative to the tooth row 22, thus realizing the linear displacement drive for milling.

[0049] In one specific embodiment, the milling mechanism 6 includes a milling base 61, a traveling rotation source 81 is disposed on the milling base 61, and a spindle stage 62 with lifting displacement for mounting the milling spindle and a lifting drive source 63 drivenly connected to the spindle stage are slidably connected on the milling base 61.

[0050] The lifting drive source 63 includes two lifting drive units 630 arranged at intervals along the rail direction. Each lifting drive unit 630 includes a lifting rotating body 631 and a rotating lead screw 632 that is connected to the lifting rotating body. A transmission lifting seat 633 corresponding to the rotating lead screw is provided on the main shaft platform.

[0051] Specifically, the lifting and rotating body 631 drives the rotating screw 632 to rotate, and the transmission lifting seat 633 realizes the lifting displacement drive of the spindle stage 62. The two lifting drive units 630 work together to realize the lifting displacement drive, thus meeting the power requirements for the lifting drive of the milling spindle.

[0052] In one specific embodiment, the milling mechanism 6 includes a milling chip guide 60 located at the bottom of the milling disk.

[0053] The milling chip guide plate 60 can collect and promptly remove milling chips.

[0054] In one specific embodiment, the longitudinal milling device includes a milling chip collection mechanism 9, which includes a receiving bin 91 for receiving milling chip guides and chip conveyor belt 92 located at the bottom of the receiving bin.

[0055] This satisfies the chip conveying requirements for timely removal and output of waste materials.

[0056] In one specific embodiment, the system includes a production line base 100, on which a recessed cavity 110 is provided; a support platform is bridged on a set of opposing side walls of the recessed cavity, and a longitudinal slit milling device is disposed within the recessed cavity.

[0057] The production line base 100 meets the requirements for integrated production line installation, facilitating the assembly and molding of the production line.

[0058] In one specific embodiment, a protective grid is provided on the outer periphery of the cavity space, and the protective grid is provided with grid intervals for loading and unloading the tube.

[0059] This ensures operational safety while meeting the needs of pipe loading and unloading operations.

[0060] As can be seen from the above description, this utility model meets the requirements for longitudinal seam milling of pipes, and the longitudinal seam milling operation is efficient and smooth. It facilitates pipe mounting and fixing, and the relative axial position of the pipe is reliable and stable, ensuring milling stability and quality. The milling amount can be controlled through height adjustment, and the linear drive and lifting drive are smooth, stable, and reliable. It is adaptable to longitudinal seam milling of various types of pipes, and has strong production line versatility.

[0061] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent in such process, method, article, or apparatus / device.

[0062] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. An automated milling production line for longitudinal seams of pipes, characterized in that: This includes a pipe support and fixing device and a longitudinal slit milling device; The pipe support and fixing device includes a support platform and a milling channel disposed at the bottom of the support platform. The support platform is provided with a milling slot disposed opposite to the milling channel and a pipe support limiting mechanism for supporting the pipe. The longitudinal slot milling device includes a linear guide that passes through the milling channel and a milling mechanism with linear displacement mounted on the linear guide. The milling mechanism is provided with a milling spindle with lifting displacement, and the milling spindle is provided with a milling disc that cooperates with the milling slot.

2. The automated milling production line for longitudinal seams of pipes according to claim 1, characterized in that: The tube body support and limiting mechanism includes a plurality of support slides arranged parallel to each other along the milling groove direction. Each support slide includes two mating support slides arranged symmetrically relative to the milling groove. Each mating support slide is provided with a tube body limiting support block with adjustable position.

3. The automated milling production line for longitudinal seams of pipes according to claim 2, characterized in that: Any of the tube body limiting support blocks is provided with two spaced-apart limiting abutment arc walls for abutting the tube body.

4. The automated milling production line for longitudinal seams of pipes according to claim 1, characterized in that: The linear guide includes two slidably connected support slides of the milling mechanism, which are spaced apart from each other, and each of the support slides has a toothed row on its side wall. The milling mechanism is provided with at least one travel drive unit, which includes a travel rotation source and a meshing drive tooth disposed on the rotating end of the travel drive source and meshing with the tooth row.

5. The automated milling production line for longitudinal seams of pipes according to claim 4, characterized in that: The milling mechanism includes a milling base, the traveling rotation source is disposed on the milling base, and a spindle platform with lifting displacement for mounting the milling spindle and a lifting drive source driven by the spindle platform are slidably connected to the milling base.

6. The automated milling production line for longitudinal seams of pipes according to claim 5, characterized in that: The lifting drive source includes two lifting drive units spaced apart along the direction of the linear guide. Each lifting drive unit includes a lifting rotating body and a rotating lead screw that is connected to the lifting rotating body. The main spindle platform is provided with a transmission lifting seat that corresponds to the rotating lead screw.

7. The automated milling production line for longitudinal seams of pipes according to claim 1, characterized in that: The milling mechanism includes a milling chip guide located at the bottom of the milling disc.

8. The automated milling production line for longitudinal seams of pipes according to claim 7, characterized in that: The longitudinal milling device includes a milling chip collection mechanism, which includes a receiving bin for receiving the milling chip guide plate and a chip conveyor belt located at the bottom of the receiving bin.

9. An automated milling production line for longitudinal seams of pipes according to any one of claims 1 to 8, characterized in that: Includes a production line base, wherein the production line base is provided with a recessed space; The support platform is bridged to a set of opposing side walls in the recessed cavity, and the longitudinal slit milling device is located within the recessed cavity.

10. The automated milling production line for longitudinal seams of pipes according to claim 9, characterized in that: The outer periphery of the cavity space is provided with a protective grid, and the protective grid is provided with grid intervals for loading and unloading the tube.

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