Pipe end welding seam grinding powder collecting device

Abstract

The invention discloses a pipe end welding seam grinding powder collecting device. A robot is fixedly installed on a base, the base moves along a track of a machine base, and a supporting seat of a collecting device is fixedly connected with the base; a shield covering the steel pipe is arranged on the supporting seat; a front baffle is installed at the end, away from the robot, of the protective cover and provided with a round hole for a steel pipe to penetrate through. A collecting disc is arranged on the supporting base, and powder generated in the welding seam grinding process falls into the collecting disc along the side wall of the protective cover. The distance between the end face of the end, close to the robot, of the protective cover and the end face of the steel pipe located in the protective cover is larger than 600 mm. The device has the beneficial effects that the structural design is reasonable, grinding powder is conveniently collected and cleaned by partially sealing a grinding area, the influence of splashing of the grinding powder generated in the grinding process of the welding seam at the pipe end of the steel pipe on the area environment is effectively reduced, the working environment is improved, and the harm to equipment operators is greatly reduced.

Description

Technical Field

[0001] The invention relates to a powder collecting device, in particular to a pipe end weld grinding powder collecting device. Background Art

[0002] During the manufacturing process of large-diameter straight-seam welded oil and gas pipelines, the weld seam at the pipe end is automatically ground while the pipe is fixed axially. Because the grinding dust in the grinding area is difficult to collect and dispose of, the work environment is poor, and the dust splash poses a significant risk to equipment operators. Summary of the Invention

[0003] In order to overcome the shortcomings of the existing use of robots for automatic grinding of steel pipe end welds, such as the difficulty in collecting and processing grinding powder, the poor working area environment, and the harm of grinding dust splashing to equipment operators, the present pipe end weld grinding powder collection device is proposed.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a pipe end weld grinding powder collection device, including a steel pipe, a machine base, and a robot, the robot is fixedly installed on the base, the base moves along the track of the machine base, and the support base of the collection device is fixedly connected to the base; a shield covering the outside of the steel pipe is provided on the support base; a front baffle is installed at the end of the shield away from the robot, and the front baffle is provided with a circular hole for the steel pipe to pass through; a collection tray is provided on the support seat, and the powder generated during weld grinding enters the collection tray downward along the side wall of the shield.

[0005] The distance between the end face of the shield close to one end of the robot and the end face of the steel pipe located inside the shield is greater than 600 mm.

[0006] Furthermore, the front baffle includes an upper baffle and a lower baffle, and the lower part of the upper baffle and the upper part of the lower baffle are provided with inner semicircles of the same size. When the upper baffle and the lower baffle are connected, the circular hole formed is consistent with the outer circle of the steel pipe.

[0007] Furthermore, the shield includes an upper shield and a lower shield, the upper shield is an inverted U-shaped shell; the two side panels of the lower shield are respectively installed on both sides of the support seat, and the upper ends of the two side panels are connected to the two sides of the upper shield; the lower parts of the side panels on both sides of the lower shield are higher on the outside and lower on the inside, and inclined from the outside to the inside.

[0008] A slide groove is provided on the support seat, and the bottom surface of the collecting tray moves along the slide groove of the support seat.

[0009] The robot operates the grinding wheel to grind the weld on the side of the steel pipe, and the shield located on the grinding side of the steel pipe is provided with an observation window.

[0010] Furthermore, the upper shield and the lower shield are fixedly connected by bolts, and the lower shield and the support seat are fixedly connected by bolts.

[0011] Furthermore, the distance between the end face of the shield close to one end of the robot and the end of the steel pipe inside the shield is 600 to 800 mm.

[0012] The beneficial effects of the present invention are that the structural design is reasonable, and by partially closing the grinding area, the collection box of the grinding powder is easy to clean, which effectively reduces the impact of the grinding dust splashing generated during the grinding of the steel pipe end weld on the regional environment, improves the working environment, and greatly reduces the harm to equipment operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the pipe end weld grinding powder collection device of the present invention.

[0014] Figure 2 yes Figure 1 AA view of the .

[0015] In the figure: 1. front baffle, 2. observation window, 3. upper guard, 4. lower guard, 5. collection tray, 6. support base, 7. upper baffle, 8. steel pipe, 9. lower baffle, 10. machine base, 11. base, 12. robot, 13. guard, 14. side panel, 15. grinding wheel. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings and examples. However, those skilled in the art should be aware that the present invention is not limited to the specific embodiments listed, and any embodiments that conform to the spirit of the present invention should be included within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "left", "right", "horizontal", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing or simplifying the description of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," "connected," and "sealed" should be understood broadly. For example, a connection can be fixed or removable, direct, indirect, or integral; it can be mechanical, indirectly connected through an intermediate medium, or internally connected between two components. A seal can be an oil seal, a packing seal, or other forms of seal. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0019] See attached Figure 1 The present invention provides a pipe end weld grinding powder collection device, which includes a machine base 10 , a steel pipe 8 , and a robot 12 . The robot 12 is fixedly mounted on a base 11 , and the base 11 moves along a track of the machine base 10 .

[0020] The support base 6 of the collecting device is fixedly connected to the base 11 . When the base 11 of the mounting robot 12 moves along the track of the machine base 10 , the support base 6 of the collecting device moves synchronously with the base 11 .

[0021] A shield 13 is provided on the support seat 6 to cover the outside of the steel pipe 8; a front baffle 1 is installed on the end of the shield 13 away from the robot 12, and the front baffle 1 is provided with a circular hole for the steel pipe 8 to pass through; a collection tray 5 is provided on the support seat 6, and powder generated during weld grinding enters the collection tray 5 along the side wall of the shield 13.

[0022] The distance between the end face of the shield 13 close to the robot 12 and the end face of the steel pipe located in the shield 13 is greater than 600 mm; preferably, the distance between the end face of the shield 13 close to the robot 12 and the end face of the steel pipe 8 located in the shield 13 is 600-800 mm, which does not affect the grinding operation of the robot 12 while effectively preventing grinding powder from splashing out of the shield 13.

[0023] Furthermore, the front baffle 1 includes an upper baffle 7 and a lower baffle 9. The lower portion of the upper baffle 7 and the upper portion of the lower baffle 9 are both provided with inner semicircles of the same size. When the upper baffle 7 and the lower baffle 9 are connected, the circular hole formed aligns with the outer circumference of the steel pipe 8. The corresponding size of the front baffle can be replaced according to the diameter of the steel pipe being processed. Preferably, a sealing strip is provided between the circular hole of the front baffle 1 and the outer circumference of the steel pipe 8 to prevent grinding powder from splashing out of the shield.

[0024] Furthermore, the shield 13 comprises an upper shield 3 and a lower shield 4. The upper shield 3 is an inverted U-shaped shell. The lower shield 4 has two side panels 14 mounted on either side of the support base 6, with their upper ends connected to the sides of the upper shield 3. The lower portions of the side panels 14 on either side of the lower shield 4 are higher on the outside and lower on the inside, sloping inward from the outside, allowing grinding powder to slide along the inner slope of the side panels 14 into the collection tray 5.

[0025] The support seat 6 is provided with a slide groove, and the bottom surface of the collecting tray 5 moves along the slide groove of the support seat 6, which is convenient for installing and removing the collecting tray 5 and timely cleaning the grinding powder in the collecting tray.

[0026] Furthermore, the robot 12 operates the grinding wheel 15 to grind the weld on the side of the steel pipe 8 , and the shield 13 located on the grinding side of the steel pipe 8 is provided with an observation window 2 .

[0027] Preferably, the upper shield 3 and the lower shield 4 are fixedly connected by bolts; the lower shield 4 and the support seat 6 are fixedly connected by bolts.

[0028] The pipe end weld grinding powder collection device of the present invention is fixedly connected to the base of the mounting robot and moves along the axial direction of the steel pipe with the robot. When the robot grinds the weld of a large-diameter straight seam submerged arc welded steel pipe, the grinding powder generated by the grinding can be blocked in the grinding powder collection device by the front baffle, the upper shield and the lower shield, and the grinding powder can slide along the side wall of the shield into the grinding powder collection box, which is convenient for cleaning; the front baffle with the corresponding aperture can be replaced according to the specifications of the steel pipe, which is convenient for replacement and has a wide range of uses.

[0029] The pipe end weld grinding powder collection device of the present invention is applied to the automatic grinding process of the weld ends of large-diameter submerged arc welded pipes by robots, realizing the protection of the working area during the entire automatic grinding process of the inner and outer welds within a range of 200 mm at the pipe ends. As the grinding is carried out, the grinding powder is collected to the maximum extent to prevent it from splashing in the working area, thereby reducing the environmental impact of the grinding powder on the working area during the robot grinding process and the physical harm to the workers in the area.

[0030] It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design many alternative embodiments without departing from the scope of the claims.

Claims

1. A pipe end weld grinding powder collection device, comprising a steel pipe, a machine base, and a robot, wherein the robot is fixedly mounted on the base, and the base moves along a track of the machine base, and is characterized by: The support seat of the collecting device is fixedly connected to the base; a shield covering the outside of the steel pipe is arranged on the support seat; a front baffle is installed at the end of the shield away from the robot, and the front baffle is provided with a circular hole for the steel pipe to pass through; a collecting plate is arranged on the support seat, and powder generated during weld grinding flows downward into the collecting plate along the side wall of the shield; the end face of the shield close to the end of the robot is greater than 600mm away from the end face of the steel pipe in the shield.

2. The pipe end weld grinding powder collection device according to claim 1, characterized in that: The front baffle comprises an upper baffle and a lower baffle. The lower part of the upper baffle and the upper part of the lower baffle are provided with inner semicircles of the same size. When the upper baffle and the lower baffle are connected, the circular hole formed is consistent with the outer circle of the steel pipe.

3. The pipe end weld grinding powder collection device according to claim 2, characterized in that: The shield comprises an upper shield and a lower shield, wherein the upper shield is an inverted U-shaped shell; the two side panels of the lower shield are respectively installed on both sides of the support seat, and the upper ends of the two side panels are connected to the two sides of the upper shield; the lower parts of the side panels on both sides of the lower shield are higher on the outside and lower on the inside, and are inclined from the outside to the inside.

4. The pipe end weld grinding powder collection device according to claim 3, characterized in that: A slide groove is arranged on the support seat, and the bottom surface of the collecting plate moves along the slide groove of the support seat.

5. The pipe end weld grinding powder collection device according to claim 4, characterized in that: The robot operates the grinding wheel to grind the weld on the side of the steel pipe, and the shield located on the grinding side of the steel pipe is provided with an observation window.

6. The pipe end weld grinding powder collection device according to claim 1, characterized in that: The upper shield and the lower shield are fixedly connected by bolts, and the lower shield and the support seat are fixedly connected by bolts.

7. The pipe end weld grinding powder collection device according to claim 1, characterized in that: The distance between the end surface of the shield close to one end of the robot and the pipe end of the steel pipe in the shield is 600-800 mm.

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