Pipe circular seam milling device

Abstract

The utility model discloses a pipe circular seam milling device which comprises a fixed base and a driving mechanism, and the driving mechanism comprises a first linear sliding seat arranged on the fixed base, a second linear sliding seat arranged on the first linear sliding seat and a milling main shaft mechanism arranged on the second linear sliding seat, the milling main shaft mechanism comprises a milling main shaft and a milling driving source, the milling main shaft is provided with a milling cutterhead, the axial direction of the milling cutterhead is parallel to the axial direction of the pipe, the second linear sliding seat is provided with a position degree visual detection end which is located at the top of the milling cutterhead and faces the splicing circular seam, and the position degree visual detection end is in communication connection with the driving mechanism. According to the utility model, circular seam milling can be realized, welding seam milling forming is realized, and the welding requirement of the outer side of a circular seam of a rear-end pipe is met. Real-time deviation correction in the milling process is achieved through visual guidance, the high overlapping performance of a formed welding seam and a circular seam is guaranteed, the defect of deviation of the welding seam is basically eradicated, and the pipe welding quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to a pipe circumferential milling device, belonging to the technical field of large-scale pipe circumferential milling equipment. 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 between the pipes. In order to ensure the welding quality, it is generally required to mill the circumferential seam of the pipe joint before welding. This will create a suitable welding fit between the two pipe sections, and then welding can improve the welding quality.

[0004] Currently, for circumferential milling of such spliced ​​pipes, a rotating device is used to splice and rotate the two pipe sections. Then, a mobile device is used to align and fix the milling end with the spliced ​​circumferential seam. At this time, the circumferential milling is achieved by synchronously rotating the two pipe sections using the rotating device.

[0005] To accommodate the adjustment of the circumferential milling depth, a milling spindle with linear displacement is typically used to meet the milling specification adjustment requirements. In practical applications, positional errors may occur at the splicing pipe end, i.e., there may be some unevenness in the circumferential bends, causing the milled end to deviate. In this case, the milled circumferential seam will have a large positional deviation, and in severe cases, the milled circumferential seam may deviate from the splicing pipe end. This part may cause detachment and affect the welding quality of the final product. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of the existing technology and to propose a pipe circumferential milling device to address the problem that unevenness at the pipe ends of traditional pipe splicing can easily cause misalignment during circumferential milling.

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

[0008] A pipe circumferential milling device is used to cooperate with a pipe support and rotation device. The pipe support and rotation device is provided with two pipes that are axially horizontally spliced ​​and have synchronous rotational displacement. There is a splicing circumferential seam between the splicing ends of the two pipes. The pipe circumferential milling device includes a fixed base that is relatively fixed to the position of the pipe support and rotation device and a drive mechanism disposed on the fixed base.

[0009] The driving mechanism includes a first linear slide with a first horizontal linear displacement disposed on the fixed base, a second linear slide with a second horizontal linear displacement disposed on the first linear slide, and a milling spindle mechanism disposed on the second linear slide. The first horizontal linear displacement is perpendicular to the axial direction of the tube and perpendicular to the second horizontal linear displacement.

[0010] The milling spindle mechanism includes a milling spindle mounted on the second linear slide and a milling drive source that is connected to the milling spindle. The milling spindle is provided with a milling cutter head whose axial direction is parallel to that of the tube. The second linear slide is provided with a positional visual detection end located on the top of the milling cutter head and facing the splicing circumferential seam. The positional visual detection end is communicatively connected to the drive mechanism.

[0011] Preferably, the fixed base is provided with a support base plate and two parallel and spaced first support slide rails that are slidably matched with the first linear slide block.

[0012] The top of the support base plate is provided with a first transmission screw that is connected to the bottom of the first linear slide and is driven by the first linear slide, and the bottom is provided with a first screw drive source that is connected to the first transmission screw.

[0013] Preferably, the first linear slide is provided with two parallel and spaced second support slides that are slidably fitted to the second linear slide, a second transmission screw located at the bottom of the second linear slide and connected to the second linear slide, and a second screw drive source connected to the second transmission screw.

[0014] Preferably, the milling spindle is equipped with a spindle gearbox, and the milling drive source is connected to the spindle gearbox for transmission.

[0015] Preferably, the second linear slide is provided with a protective sheet metal cover for covering and protecting the milling spindle and the milling drive source, and a milling cutter head isolation chamber for isolating the milling cutter head from the protective sheet metal cover. The top of the milling cutter head isolation chamber is provided with an exposed window for partially exposing the milling cutter head. The positional visual detection end is disposed on the milling cutter head isolation chamber.

[0016] Preferably, the bottom of the milling cutter head isolation chamber is provided with a milling chip collection part, and the bottom of the milling chip collection part is provided with a chip removal guide plate extending from the fixed base.

[0017] Preferably, the second linear slide is provided with an operating platform, and the operating platform is provided with a control host.

[0018] Preferably, the operating platform is equipped with a control panel guardrail and a control panel ladder.

[0019] The beneficial effects of this utility model are mainly reflected in:

[0020] 1. It can perform circumferential milling to achieve weld seam milling and shape, meeting the welding requirements of the outer side of the circumferential seam of the downstream pipe.

[0021] 2. Real-time correction during the milling process is achieved through visual guidance, ensuring a high degree of overlap between the formed weld and the circumferential weld, virtually eliminating weld deviation defects, and thus ensuring the quality of pipe welding. Attached Figure Description

[0022] 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:

[0023] Figure 1 This is a schematic diagram of the structure of a pipe circumferential milling device according to the present invention.

[0024] Figure 2 This is a schematic diagram of the structure of a pipe circumferential milling device in use according to this utility model.

[0025] Figure 3 This is a partial default structural diagram of a pipe circumferential milling device according to this utility model.

[0026] Figure 4 This is a side view of a pipe circumferential milling device according to the present invention.

[0027] Figure 5 This is an exploded structural diagram of a pipe circumferential milling device according to this utility model.

[0028] Figure 6 This is a partial schematic diagram of the drive mechanism in a pipe circumferential milling device according to this utility model. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] This utility model provides a pipe circumferential milling device for use in conjunction with a pipe support and rotation device, such as... Figures 1 to 6 As shown, the pipe support rotating device is provided with two pipes 100 that are axially horizontally spliced ​​and have synchronous rotational displacement, and there is a splicing circumferential seam 200 between the splicing ends of the two pipes 100.

[0032] The pipe circumferential milling device includes a fixed base 1 that is relatively fixed to the position of the pipe support rotation device, and a drive mechanism 2 mounted on the fixed base 1.

[0033] The drive mechanism 2 includes a first linear slide 3 with a first horizontal linear displacement mounted on a fixed base 1, a second linear slide 4 with a second horizontal linear displacement mounted on the first linear slide 3, and a milling spindle mechanism 5 mounted on the second linear slide 4. The first horizontal linear displacement is perpendicular to the axial direction of the pipe and perpendicular to the second horizontal linear displacement.

[0034] The milling spindle mechanism 5 includes a milling spindle 51 mounted on a second linear slide and a milling drive source 52 that is connected to the milling spindle 51. The milling spindle 51 is provided with a milling cutter head 53 whose axial direction is parallel to that of the tube. The second linear slide 4 is provided with a positional visual detection end 6 located on the top of the milling cutter head and facing the splicing circumferential seam 200. The positional visual detection end 6 is communicatively connected to the drive mechanism 2.

[0035] Detailed implementation process and principle explanation:

[0036] like Figure 2 As shown, the inner side of the splicing circumference 200 of the two pipes 100 is pre-welded. The pre-welded spliced ​​pipes 100 are placed on a pipe support and rotation device. This pipe support and rotation device is existing technology, which can realize the support and rotation of the pipes and expose part of the splicing circumference 200.

[0037] When milling the exposed part of the splicing circumferential seam 200, the milling cutter head 53 and the splicing circumferential seam 200 are pre-aligned by the linear displacement of the first linear slide 3.

[0038] At this time, the pipe support rotating device drives the rotation of the pipe, while the milling drive source 52 drives the milling spindle 51 to rotate and drive the milling cutter head 53 to perform milling rotation displacement drive, thus realizing the milling operation of the splicing circumferential seam 200.

[0039] It should be noted that during the operation of the pipe circumferential milling device, the positional vision detection end 6 detects the relative position of the milling cutter head 53 and the splicing circumferential seam 200, and adjusts the positional accuracy through communication with the drive mechanism 2, thus meeting the requirement of dynamic tracking between the milling cutter head 53 and the splicing circumferential seam 200. More specifically, when an offset occurs, real-time adjustment is achieved through the adjustment of the second linear slide 4.

[0040] In one specific embodiment, the fixed base 1 is provided with a support base plate 11 and two parallel and spaced first support slide rails 12 that are slidably matched with the first linear slide.

[0041] The top of the support base plate 11 is provided with a first transmission screw 111 located at the bottom of the first linear slide and connected to the first linear slide, and the bottom is provided with a first screw drive source 112 connected to the first transmission screw.

[0042] In the specific implementation, the first lead screw 111 is rotated by the first lead screw drive source 112, thereby driving the linear slide block to linearly displace on the first support slide rail 12. This achieves high-precision displacement control while maintaining a relatively compact layout.

[0043] In one specific embodiment, the first linear slide 3 is provided with two parallel and spaced second support slide rails 31 that are slidably matched with the second linear slide, a second transmission screw 32 located at the bottom of the second linear slide and connected to the second linear slide, and a second screw drive source 33 connected to the second transmission screw.

[0044] That is, the second lead screw 32 is rotated by the second lead screw drive source 33, thereby driving the second linear slide block to linearly displace on the second support slide rail 31.

[0045] In one specific embodiment, the milling spindle 51 is provided with a spindle gearbox 510, and the milling drive source is connected to the spindle gearbox.

[0046] That is, by using the 510 main spindle gearbox, the speed ratio adjustment requirements can be met, making the milling operation more stable and reliable.

[0047] In one specific embodiment, the second linear slide 4 is provided with a protective sheet metal cover 7 for covering and protecting the milling spindle and the milling drive source, and a milling cutter head isolation chamber 8 for isolating the milling cutter head from the protective sheet metal cover. The top of the milling cutter head isolation chamber is provided with an exposed window 80 for partially exposing the milling cutter head. The positional visual detection end 6 is set on the milling cutter head isolation chamber.

[0048] Specifically, the protective sheet metal cover 7 protects the power components such as the spindle, and the milling cutter head isolation chamber 8 provides spatial isolation from the milling cutter head, thus eliminating malfunctions caused by flying milling debris. The exposed window 8 meets the partial exposed milling requirements of the milling cutter head, significantly improving milling safety. It also facilitates the mounting of the positional vision detection end 6, meeting the relative positional adaptation requirements between the positional vision detection end 6 and the milling cutter head.

[0049] In one specific embodiment, the bottom of the milling cutter head isolation chamber 8 is provided with a milling chip collection section, and the bottom of the milling chip collection section is provided with a chip removal guide plate 9 extending from the fixed base.

[0050] The milling cutter head isolation chamber 8 collects milling chips through the chip collection section at its bottom, and discharges them to the fixed base area through the chip guide plate 9.

[0051] In one specific embodiment, the second linear slide 4 is provided with an operating platform 40, the operating platform 40 is provided with a control host 41, and the operating platform is provided with a control panel guard 42 and a control panel ladder 43.

[0052] This allows for the mounting of the operating platform 40, which is integrated with the milling spindle for real-time operation. The platform ladder 43 facilitates passenger access, while the control panel guardrail 42 provides protection. The control host 41 enables operators to control the equipment.

[0053] As described above, this invention enables circumferential milling, achieving weld seam milling and meeting the welding requirements on the outer side of the circumferential seam of the downstream pipe. Real-time correction during the milling process is achieved through visual guidance, ensuring a high degree of overlap between the formed weld seam and the circumferential seam, virtually eliminating weld seam deviation defects, and thus guaranteeing the welding quality of the pipe.

[0054] 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.

[0055] 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. A pipe circumferential milling device, used in conjunction with a pipe support rotation device, wherein the pipe support rotation device is provided with two pipes axially horizontally spliced ​​together and having synchronous rotational displacement, and a splicing circumferential seam is provided between the spliced ​​ends of the two pipes, characterized in that: The pipe circumferential milling device includes a fixed base that is relatively fixed to the position of the pipe support rotation device, and a drive mechanism disposed on the fixed base; The driving mechanism includes a first linear slide with a first horizontal linear displacement disposed on the fixed base, a second linear slide with a second horizontal linear displacement disposed on the first linear slide, and a milling spindle mechanism disposed on the second linear slide. The first horizontal linear displacement is perpendicular to the axial direction of the tube and perpendicular to the second horizontal linear displacement. The milling spindle mechanism includes a milling spindle mounted on the second linear slide and a milling drive source that is connected to the milling spindle. The milling spindle is provided with a milling cutter head whose axial direction is parallel to that of the tube. The second linear slide is provided with a positional visual detection end located on the top of the milling cutter head and facing the splicing circumferential seam. The positional visual detection end is communicatively connected to the drive mechanism.

2. The pipe circumferential milling device according to claim 1, characterized in that: The fixed base is provided with a support base plate and two parallel and spaced first support slide rails that are slidably matched with the first linear slide block. The top of the support base plate is provided with a first transmission screw that is connected to the bottom of the first linear slide and is driven by the first linear slide, and the bottom is provided with a first screw drive source that is connected to the first transmission screw.

3. The pipe circumferential milling device according to claim 1, characterized in that: The first linear slide is provided with two parallel and spaced second support slides that are slidably matched with the second linear slide, a second transmission screw located at the bottom of the second linear slide and connected to the second linear slide, and a second screw drive source connected to the second transmission screw.

4. The pipe circumferential milling device according to claim 1, characterized in that: The milling spindle is equipped with a spindle gearbox, and the milling drive source is connected to the spindle gearbox for transmission.

5. A pipe circumferential milling device according to any one of claims 1 to 4, characterized in that: The second linear slide is provided with a protective sheet metal cover for covering and protecting the milling spindle and the milling drive source, and a milling cutter head isolation chamber for isolating the milling cutter head from the protective sheet metal cover. The top of the milling cutter head isolation chamber is provided with an exposed window for partially exposing the milling cutter head. The positional visual detection end is set on the milling cutter head isolation chamber.

6. The pipe circumferential milling device according to claim 5, characterized in that: The bottom of the milling cutter head isolation chamber is provided with a milling chip collection section, and the bottom of the milling chip collection section is provided with a chip removal guide plate extending from the fixed base.

7. The pipe circumferential milling device according to claim 1, characterized in that: The second linear slide is provided with an operating platform, and the operating platform is provided with a control host.

8. The pipe circumferential milling device according to claim 7, characterized in that: The operating platform is equipped with a control panel guardrail and a control panel ladder.

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