CN117655382A - Circumferential weld back chipping equipment and method - Google Patents
Circumferential weld back chipping equipment and method Download PDFInfo
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- CN117655382A CN117655382A CN202311658778.7A CN202311658778A CN117655382A CN 117655382 A CN117655382 A CN 117655382A CN 202311658778 A CN202311658778 A CN 202311658778A CN 117655382 A CN117655382 A CN 117655382A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000003801 milling Methods 0.000 claims abstract description 82
- 238000005520 cutting process Methods 0.000 claims abstract description 40
- 238000003754 machining Methods 0.000 claims description 30
- 238000003466 welding Methods 0.000 description 13
- 238000009434 installation Methods 0.000 description 10
- 239000002184 metal Substances 0.000 description 7
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Abstract
The invention provides a circumferential weld back chipping device and a method, wherein the device comprises the following components: comprises a workpiece driving mechanism, a cutting mechanism and a first adjusting mechanism; the workpiece driving mechanism comprises a plurality of supporting wheels distributed in an array and a first motor for driving the supporting wheels to rotate, and the supporting wheels are used for supporting the cylindrical workpiece and driving the cylindrical workpiece to rotate; the cutting mechanism comprises a milling cutter disc, a second motor and a second adjusting mechanism, wherein the second motor is used for driving the milling cutter disc, the milling cutter disc is arranged on the second adjusting mechanism, the second adjusting mechanism is used for adjusting the vertical position of the milling cutter disc on the cutting mechanism and the position parallel to the axial direction of the supporting wheel, the cutting mechanism is arranged on the first adjusting mechanism, and the first adjusting mechanism is used for adjusting the vertical position of the cutting mechanism inside the cylindrical workpiece and the position parallel to the axial direction of the supporting wheel. The equipment provided by the invention overcomes the problems of insufficient turning rigidity and poor turning accessibility, and is simpler and more convenient to operate.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a circumferential weld back chipping device and method.
Background
The back chipping of the welding line refers to a process of cleaning the root of the welding line from the back surface to the finished welding line by using a proper tool before the welding is finished and the welding is carried out from the back surface to the back surface for the full penetration welding line formed by double-sided welding with high quality requirements.
The back chipping of the girth weld is generally performed by turning, but particularly for workpieces having a large length and a large diameter, turning has various drawbacks. For example: after two cylindrical sections with the length of 3m and the diameter of 4m are welded together, the size of the to-be-back-gouged area of the cylindrical section is 3m from the end face of the cylindrical section, if turning is adopted, the lathe ram needs to be suspended deep to 3m long (the suspension depth length of the conventional turning ram is 1m-1.5 m), and the turning accessibility is poor due to the fact that the suspension depth of the lathe ram is too long, the turning rigidity is insufficient. In addition, the weight of the two sections of cylinder sections after assembly welding is about 160T, the cylinder sections are required to be hoisted to a vertical lathe station for back chipping by a crane through a girth welding station, and in the vertical lathe process, as the height dimension of the cylinder sections reaches 6m, the cylinder sections are required to be clamped by a high clamping jaw, and the clamping and alignment difficulties are both relatively high.
Disclosure of Invention
The invention solves the technical problems that when the circumferential weld back chipping is carried out on a workpiece with larger length and larger diameter, at least one of the problems of difficult workpiece transfer, clamping and alignment, insufficient turning rigidity, poor turning accessibility and the like exists by adopting the existing turning mode.
In order to solve the technical problems, the invention adopts the following technical scheme:
a back chipping device for girth weld comprises a workpiece driving mechanism, a cutting mechanism and a first adjusting mechanism;
the workpiece driving mechanism comprises a plurality of supporting wheels which are distributed in a square shape and a first motor which is used for driving the supporting wheels to rotate, and the supporting wheels are used for supporting the cylindrical workpiece and driving the cylindrical workpiece to rotate;
the cutting mechanism comprises a milling cutter disc, a second motor and a second adjusting mechanism, wherein the second motor is used for driving the milling cutter disc, the milling cutter disc is installed on the second adjusting mechanism, the second adjusting mechanism is used for adjusting the vertical position of the milling cutter disc on the cutting mechanism and the position parallel to the axial direction of the supporting wheel, the cutting mechanism is installed on the first adjusting mechanism, and the first adjusting mechanism is used for adjusting the vertical position of the cutting mechanism inside the cylindrical workpiece and the position parallel to the axial direction of the supporting wheel.
Preferably, the first adjusting mechanism comprises a base, a vertical supporting column, a transverse installation column, a third motor and a fourth motor, wherein the vertical supporting column is installed on the base, a connecting part capable of sliding vertically is connected to the vertical supporting column in a sliding mode, the connecting part is connected with the transverse installation column in a sliding mode, the sliding direction of the transverse installation column is consistent with the length direction of the transverse installation column and is parallel to the axial direction of the supporting wheel, the cutting mechanism is installed at one end, close to the supporting wheel, of the transverse installation column, the third motor is used for driving the connecting part to slide, and the fourth motor is used for driving the transverse installation column to slide.
Preferably, the second adjusting mechanism comprises a cross slide, a fifth motor and a sixth motor, the cross slide comprises a first slide and a second slide, the first slide is installed on the first adjusting mechanism, the second slide is slidably connected on the first slide, the sliding direction of the second slide is parallel to the axial direction of the supporting wheel, an installation part is slidably connected on the second slide, the sliding direction of the installation part is vertical, the milling cutter disc is installed on the installation part, the fifth motor is used for driving the second slide to slide, and the sixth motor is used for driving the installation part to slide.
Preferably, four of the support wheels are distributed in a rectangular array.
Compared with the prior art, the circumferential weld back-chipping equipment provided by the invention can drive the rotation of the cylindrical workpiece through the rotation of the supporting wheel, the rotation of the cylindrical workpiece is used as the feeding motion of back-chipping, and the rotation of the milling cutter disc is used as the main motion of back-chipping, so that the back-chipping operation is realized by milling instead of traditional turning, and on the premise of the same machining allowance and metal removal rate, the cutting resistance can be effectively reduced due to the fact that the milling is more than the single-edge machining of turning in unit time, thereby effectively reducing the requirement of back-chipping on machining rigidity, and avoiding the problems of insufficient turning rigidity and poor turning accessibility; in addition, the welding and back chipping work of the girth weld can be completed at the same station, and the operation is simpler and more convenient.
The invention also provides a circumferential weld back chipping method based on the circumferential weld back chipping equipment, which comprises the following steps:
s1, placing a cylindrical workpiece to be processed on a supporting wheel, so that the axial direction of the cylindrical workpiece is parallel to the axial direction of the supporting wheel;
s2, adjusting the position of a cutting machining mechanism through a first adjusting mechanism to enable a milling cutter disc to be located in the middle of a region to be back-gouged, so that the distance between the axis of the milling cutter disc and the center of a protrusion to be back-gouged of the cylindrical workpiece is smaller than a first preset distance; the milling cutter disc and the protrusion to be back-gouged keep a second preset distance in the vertical direction through a first adjusting mechanism and a second adjusting mechanism; starting a second motor to drive the milling cutter disc to rotate, and adjusting the position of the milling cutter disc parallel to the axial direction of the supporting wheel through the second adjusting mechanism, so that an effective processing area of the milling cutter disc covers the whole area to be back-gouged of the cylindrical workpiece; then, the milling cutter disc is close to the protrusion to be back-gouged through the second adjusting mechanism until the milling cutter disc cuts the protrusion to be back-gouged;
and S3, determining an initial tool setting position, starting the first motor to enable the supporting wheel to rotate, and driving the cylindrical workpiece to rotate, wherein the rotation of the cylindrical workpiece is used as a feeding motion for back chipping machining.
Preferably, the first preset distance is 50mm.
Preferably, in step S2, the maintaining, by a first adjusting mechanism and a second adjusting mechanism, the milling cutter disc and the protrusion to be back-gouged at a second preset distance in a vertical direction includes:
the first adjusting mechanism enables the milling cutter disc and the protrusion to be back-gouged of the cylindrical workpiece to keep a third preset distance in the vertical direction, and the second adjusting mechanism enables the milling cutter disc to be close to the protrusion to be back-gouged, so that the milling cutter disc and the protrusion to be back-gouged keep a second preset distance in the vertical direction.
Preferably, the third preset distance is 45-55mm, and the second preset distance is 10-15mm.
Preferably, in the step S3, the determining an initial tool setting position includes: starting the first motor to enable the cylindrical workpiece to rotate for a circle, finding out a short shaft of the cylindrical workpiece, continuously rotating the cylindrical workpiece to enable the short shaft to be in a vertical direction, and adjusting the position of the milling cutter disc again until the milling cutter disc cuts the protrusion to be back-gouged.
Preferably, the length of the cylindrical workpiece to be processed is greater than 2m.
Compared with the prior art, the method provided by the invention has the advantages that the back chipping operation is carried out by milling instead of traditional turning, and on the premise of the same machining allowance and metal removal rate, the milling is more than single-edge machining of turning with the cutting edge in unit time, so that the cutting resistance can be effectively reduced, the requirement of back chipping on the machining rigidity is effectively reduced, and the problems of insufficient turning rigidity and poor turning accessibility are avoided; the welding and back chipping of the girth weld can be finished at the same station, and the operation is simpler and more convenient; in addition, by adopting the method, the first adjusting mechanism and the second adjusting mechanism are matched, so that the precise alignment of the milling cutter disc and the region to be back-gouged can be realized, and the processing precision is higher.
Drawings
FIG. 1 is a schematic structural view of a back gouging device for a girth weld in an embodiment of the present invention;
FIG. 2 is a back chipping process parameter calculation interface using the apparatus provided by the embodiment of the invention;
FIG. 3 is a back chipping process parameter calculation interface using turning;
FIG. 4 is a schematic view of a cutting mechanism according to an embodiment of the present invention;
fig. 5 is a partial cross-sectional view of a cylindrical workpiece to be back-gouged in accordance with an embodiment of the present invention.
Reference numerals illustrate:
11. the device comprises a supporting wheel, 21, a cylindrical workpiece, 22, a protrusion to be back-gouged, 31, a milling cutter disc, 32, a second motor, 33, a first sliding seat, 34, a second sliding seat, 35, a mounting part, 36, a fifth motor, 37, a sixth motor, 41, a base, 42, a vertical supporting column, 43, a transverse mounting column, 44 and a connecting part.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
It should be noted that, without conflict, features in the embodiments of the present invention may be combined with each other. It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. In the present invention, the axial direction parallel to the supporting wheel 11 is the direction parallel to the X axis, and the vertical direction is the direction parallel to the Z axis. As shown in fig. 1, an embodiment of the present invention provides a circumferential weld back chipping apparatus, including a workpiece driving mechanism, a cutting mechanism, and a first adjusting mechanism;
the workpiece driving mechanism comprises a plurality of supporting wheels 11 distributed in an array and a first motor (not shown in the figure) for driving the supporting wheels 11 to rotate, wherein the supporting wheels 11 are used for supporting the cylindrical workpiece 21 and driving the cylindrical workpiece 21 to rotate;
the cutting mechanism comprises a milling cutter disc 31, a second motor 32 for driving the milling cutter disc 31 and a second adjusting mechanism, the milling cutter disc 31 is installed on the second adjusting mechanism, the second adjusting mechanism is used for adjusting the vertical position of the milling cutter disc 31 on the cutting mechanism and the position parallel to the axial direction of the supporting wheel 11, the cutting mechanism is installed on the first adjusting mechanism, and the first adjusting mechanism is used for adjusting the vertical position of the cutting mechanism inside the cylindrical workpiece 21 and the position parallel to the axial direction of the supporting wheel.
Compared with the prior art, the circumferential weld back-chipping equipment provided by the invention can drive the rotation of the cylindrical workpiece 21 through the rotation of the supporting wheel 11, the rotation of the cylindrical workpiece 21 is used as the feeding motion of back-chipping machining, and the rotation of the milling cutter disc 31 is used as the main motion of back-chipping machining, so that back-chipping operation is realized by milling instead of traditional turning machining, and on the premise of the same machining allowance and metal removal rate, the cutting resistance can be effectively reduced due to the fact that milling is more than single-edge machining of turning with cutting edges in unit time, thereby effectively reducing the requirement of back-chipping machining on machining rigidity, and the problems of insufficient turning machining rigidity and poor turning accessibility are avoided; in addition, the welding and back chipping work of the girth weld can be completed at the same station, and the operation is simpler and more convenient.
Fig. 2 is a back chipping machining parameter calculation interface using the apparatus provided by the embodiment of the invention, and fig. 3 is a back chipping machining parameter calculation interface using turning, and it can be seen from fig. 2 and 3 that, on the premise of the same machining allowance and metal removal rate, since milling refers to cutting edge machining with more than turning single edge machining in unit time, cutting resistance can be effectively reduced, and therefore, a mode of milling instead of turning is adopted to solve the problem of insufficient machining rigidity. According to the calculation of the cutting parameters, the metal removal rate in the turning mode is 40mm3/min, the main cutting force is about 1057N, and the main cutting force is about 703N and is reduced by about 33.5% on the premise that the metal removal rate is not reduced in the milling mode, so that the requirement on the machining rigidity can be effectively reduced in the mode.
In the embodiment of the present invention, as shown in fig. 1, the first adjusting mechanism includes a base 41, a vertical support column 42, a transverse mounting column 43, a third motor (not shown in the figure) and a fourth motor (not shown in the figure), wherein the vertical support column 42 is mounted on the base 41, a vertically slidable connecting portion 44 is slidably connected to the vertical support column 42, the connecting portion 44 is slidably connected to the transverse mounting column 43, the sliding direction of the transverse mounting column 43 is consistent with the length direction thereof and is parallel to the axial direction of the supporting wheel 11, the cutting mechanism is mounted at one end of the transverse mounting column 43 near the supporting wheel 11, the third motor is used for driving the connecting portion 44 to slide, and the fourth motor is used for driving the transverse mounting column 43 to slide. The first adjusting mechanism is simple in structure, and the cutting mechanism can be conveniently and rapidly adjusted in the vertical position inside the cylindrical workpiece 21 and the position parallel to the axial direction of the supporting wheel 11, so that the purpose of roughly adjusting the position of the milling cutter disc 31 is achieved.
In the embodiment of the present invention, as shown in fig. 4, the second adjusting mechanism includes a cross slide, a fifth motor 36 and a sixth motor 37, the cross slide includes a first slide 33 and a second slide 34, the first slide 33 is mounted on the first adjusting mechanism, the second slide 34 is slidably connected to the first slide, a sliding direction of the second slide 34 is parallel to an axial direction of the supporting wheel 11, a mounting portion 35 is slidably connected to the second slide, a sliding direction of the mounting portion 35 is vertical, the milling cutter disc 31 is mounted on the mounting portion 35, the fifth motor 36 is used for driving the second slide 34 to slide, and the sixth motor 37 is used for driving the mounting portion 35 to slide.
In the embodiment of the present invention, the four supporting wheels 11 are distributed in a rectangular array, which is beneficial to ensure the stable rotation of the cylindrical workpiece 21.
The embodiment of the invention also provides a circumferential weld back-chipping method, based on the circumferential weld back-chipping device as described above, fig. 5 is a partial cross-sectional view of a cylindrical workpiece 21 to be back-chipped, the method comprising:
step S1, placing a cylindrical workpiece 21 to be processed on a supporting wheel 11, so that the axial direction of the cylindrical workpiece 21 is parallel to the axial direction of the supporting wheel 11;
step S2, adjusting the position of a cutting mechanism through a first adjusting mechanism to enable a milling cutter disc 31 to be positioned in the middle of a region to be back-gouged, so that the distance between the axis of the milling cutter disc 31 and the center of a protrusion 22 to be back-gouged of the cylindrical workpiece 21 is smaller than a first preset distance; the milling cutter disc 31 and the protrusion 22 to be back-gouged are kept a second preset distance in the vertical direction through a first adjusting mechanism and a second adjusting mechanism; starting a second motor 32 to drive the milling cutter disc 31 to rotate, and adjusting the position of the milling cutter disc 31 parallel to the axial direction of the supporting wheel 11 through the second adjusting mechanism, so that the effective processing area of the milling cutter disc 31 covers the whole area to be back-gouged of the cylindrical workpiece 21; then, the milling cutter disc 31 is close to the protrusion 22 to be back-gouged through the second adjusting mechanism until the milling cutter disc 31 cuts the protrusion 22 to be back-gouged;
and S3, determining an initial tool setting position, starting a first motor to enable the supporting wheel to rotate, and driving the cylindrical workpiece 21 to rotate, wherein the rotation of the cylindrical workpiece (21) serves as a feeding motion for back chipping machining.
The effective machining area of the cutter disc 31 is an area that can be cut by the cutter disc when the cutter disc rotates and the cylindrical shape rotates.
In the embodiment of the present invention, the first preset distance is 50mm, so as to ensure that the milling cutter disc 31 is located in the middle of the area to be back-gouged.
In the embodiment of the present invention, in the step S2, the maintaining the second preset distance between the milling cutter disc 31 and the back-gouging protrusion 22 in the vertical direction by using the first adjusting mechanism and the second adjusting mechanism includes: the first adjusting mechanism is used for enabling the milling cutter disc 31 and the protrusion 22 to be back-gouged of the cylindrical workpiece 21 to keep a third preset distance in the vertical direction, the second adjusting mechanism is used for enabling the milling cutter disc 31 to be close to the protrusion 22 to be back-gouged, the milling cutter disc 31 and the protrusion 22 to be back-gouged keep a second preset distance in the vertical direction, the third preset distance is 45-55mm, and the second preset distance is 10-15mm. By keeping the distance between the milling cutter disc 31 and the protrusion 22 to be back-gouged in the vertical direction at 10-15mm in a mode of matching coarse adjustment and fine adjustment, other non-processing parts of the cylindrical workpiece 21 can be prevented from being touched in the process of adjusting the position of the milling cutter disc.
Since the cylindrical workpiece 21 to be processed cannot be guaranteed to be a standard cylinder, the height of the upper surface of the back-gouging protrusion 22 to be back-gouged, which is located at the lowest vertical position of the cylindrical workpiece 21, is constantly changed during the rotation of the cylindrical workpiece 21, and the short axis of the cylindrical workpiece needs to be found to determine the initial tool setting position. In the embodiment of the present invention, in the step S3, the determining the initial tool setting position includes: starting the first motor to enable the cylindrical workpiece 21 to rotate for one circle, finding out a short axis of the cylindrical workpiece 21, continuously rotating the cylindrical workpiece 21 to enable the short axis to be in a vertical direction, and adjusting the position of the milling cutter disc 31 again until the milling cutter disc 31 cuts the protrusion 22 to be back-gouged.
In the embodiment of the present invention, when the color of the milling cutter disc 31 is reddish during the back-chipping process, the milling cutter disc 31 should be replaced in time to ensure the quality of the processing.
In the embodiment of the present invention, the length of the cylindrical workpiece 21 to be processed is greater than 2m.
Compared with the prior art, the method provided by the invention has the advantages that the back chipping operation is carried out by milling instead of traditional turning, and on the premise of the same machining allowance and metal removal rate, the milling is more than single-edge machining of turning with the cutting edge in unit time, so that the cutting resistance can be effectively reduced, the requirement of back chipping on the machining rigidity is effectively reduced, and the problems of insufficient turning rigidity and poor turning accessibility are avoided; the welding and back chipping of the girth weld can be finished at the same station, and the operation is simpler and more convenient; in addition, by adopting the method, the first adjusting mechanism and the second adjusting mechanism are matched, so that the precise alignment of the milling cutter disc and the region to be back-gouged can be realized, and the processing precision is higher.
In addition, although the present disclosure is disclosed above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the disclosure.
Claims (10)
1. The girth weld back chipping device is characterized by comprising a workpiece driving mechanism, a cutting mechanism and a first adjusting mechanism;
the workpiece driving mechanism comprises a plurality of supporting wheels (11) distributed in an array manner and a first motor for driving the supporting wheels (11) to rotate, wherein the supporting wheels (11) are used for supporting a cylindrical workpiece (21) and driving the cylindrical workpiece (21) to rotate;
the cutting mechanism comprises a milling cutter disc (31), a second motor (32) for driving the milling cutter disc (31) and a second adjusting mechanism, wherein the milling cutter disc (31) is installed on the second adjusting mechanism, the second adjusting mechanism is used for adjusting the vertical position of the milling cutter disc (31) on the cutting mechanism and the position parallel to the axial direction of the supporting wheel (11), the cutting mechanism is installed on the first adjusting mechanism, and the first adjusting mechanism is used for adjusting the vertical position of the cutting mechanism inside the cylindrical workpiece (21) and the position parallel to the axial direction of the supporting wheel.
2. The girth weld back chipping device according to claim 1, characterized in that the first adjusting mechanism comprises a base (41), a vertical support column (42), a transverse mounting column (43), a third motor and a fourth motor, the vertical support column (42) is mounted on the base (41), a connecting portion (44) capable of sliding vertically is connected to the vertical support column (42) in a sliding manner, the connecting portion (44) is connected to the transverse mounting column (43) in a sliding manner, the sliding direction of the transverse mounting column (43) is consistent with the length direction of the transverse mounting column and parallel to the axial direction of the supporting wheel (11), the cutting mechanism is mounted at one end of the transverse mounting column (43) close to the supporting wheel (11), the third motor is used for driving the connecting portion (44) to slide, and the fourth motor is used for driving the transverse mounting column (43) to slide.
3. The girth weld back chipping device according to claim 1, characterized in that the second adjusting mechanism includes a cross slide, a fifth motor (36) and a sixth motor (37), the cross slide includes a first slide (33) and a second slide (34), the first slide (33) is mounted on the first adjusting mechanism, the second slide (34) is slidably connected on the first slide, a sliding direction of the second slide (34) is parallel to an axial direction of the supporting wheel (11), a mounting portion (35) is slidably connected on the second slide, a sliding direction of the mounting portion (35) is vertical, the milling cutter disc (31) is mounted on the mounting portion (35), the fifth motor (36) is used for driving the second slide (34) to slide, and the sixth motor (37) is used for driving the mounting portion (35) to slide.
4. The girth weld back chipping device according to claim 1, wherein four of said supporting wheels (11) are distributed in a rectangular array.
5. A method of back chipping a girth weld, characterized by comprising, based on the girth weld back chipping apparatus according to any one of claims 1 to 4:
step S1, placing a cylindrical workpiece (21) to be processed on a supporting wheel (11) so that the axial direction of the cylindrical workpiece (21) is parallel to the axial direction of the supporting wheel (11);
s2, adjusting the position of a cutting mechanism through a first adjusting mechanism to enable a milling cutter disc (31) to be located in the middle of a region to be back-gouged, so that the distance between the axis of the milling cutter disc (31) and the center of a protrusion (22) to be back-gouged of the cylindrical workpiece (21) is smaller than a first preset distance; the milling cutter disc (31) and the protrusion (22) to be back-gouged keep a second preset distance in the vertical direction through a first adjusting mechanism and a second adjusting mechanism; starting a second motor (32) to drive the milling cutter disc (31) to rotate, and adjusting the position of the milling cutter disc (31) parallel to the axial direction of the supporting wheel (11) through the second adjusting mechanism, so that the effective processing area of the milling cutter disc (31) covers the whole area to be back-gouged of the cylindrical workpiece (21); then, the milling cutter disc (31) is close to the protrusion (22) to be back-gouged through the second adjusting mechanism until the milling cutter disc (31) cuts the protrusion (22) to be back-gouged;
and S3, determining an initial tool setting position, starting a first motor to enable the supporting wheel (11) to rotate, and driving the cylindrical workpiece (21) to rotate, wherein the rotation of the cylindrical workpiece (21) serves as a feeding motion for back chipping machining.
6. The method of back chipping a girth weld according to claim 5 wherein the first predetermined distance is 50mm.
7. The method according to claim 5, wherein in the step S2, the step of maintaining the facing disc (31) and the protrusion (22) to be back-gouged at a second predetermined distance in a vertical direction by a first adjusting mechanism and a second adjusting mechanism includes:
the first adjusting mechanism enables the milling cutter disc (31) and the protrusion (22) to be back-gouged of the cylindrical workpiece (21) to keep a third preset distance in the vertical direction, and the second adjusting mechanism enables the milling cutter disc (31) to be close to the protrusion (22) to be back-gouged, so that the milling cutter disc (31) and the protrusion (22) to be back-gouged keep the second preset distance in the vertical direction.
8. The method of back chipping a girth weld according to claim 7 wherein the third predetermined distance is 45-55mm and the second predetermined distance is 10-15mm.
9. The method according to claim 6, wherein in the step S3, the determining the initial tool setting position includes: starting the first motor to enable the cylindrical workpiece (21) to rotate for one circle, finding out a short shaft of the cylindrical workpiece (21), continuing to rotate the cylindrical workpiece (21) to enable the short shaft to be in a vertical direction, and adjusting the position of the milling cutter disc (31) again until the milling cutter disc (31) cuts the protrusion (22) to be back-gouged.
10. The back chipping method of girth welds according to claim 6, characterized in that the length of the cylindrical workpiece (21) to be machined is greater than 2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311658778.7A CN117655382A (en) | 2023-12-05 | 2023-12-05 | Circumferential weld back chipping equipment and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311658778.7A CN117655382A (en) | 2023-12-05 | 2023-12-05 | Circumferential weld back chipping equipment and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117655382A true CN117655382A (en) | 2024-03-08 |
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|---|---|---|---|
| CN202311658778.7A Pending CN117655382A (en) | 2023-12-05 | 2023-12-05 | Circumferential weld back chipping equipment and method |
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| Country | Link |
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| CN (1) | CN117655382A (en) |
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- 2023-12-05 CN CN202311658778.7A patent/CN117655382A/en active Pending
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