Precise trimming device for large-diameter long cylinder section

Abstract

The invention discloses a large-diameter long cylinder section precise edge cutting device which comprises a supporting assembly and a cutting assembly, the supporting assembly comprises a base, a rotating seat, an inner supporting piece and a rotating driving piece, the rotating seat is rotatably installed on the base, the inner supporting piece is installed on the rotating seat and supports the inner wall of a cylinder section in the radial direction, and the inner supporting piece is installed on the rotating seat and supports the inner wall of the cylinder section in the radial direction. And the rotation driving piece is in transmission connection with the rotating seat so as to drive the rotating seat to rotate. The cutting assembly comprises a stand column, a cutting sliding seat, a cutting part and a lifting driving part, the stand column is parallel to the axis of the barrel section, the cutting sliding seat is arranged on the stand column in a sliding mode in the length direction of the stand column, the lifting driving part drives the cutting sliding seat so as to drive the cutting sliding seat to slide, the cutting part is installed on the cutting sliding seat, and the lifting driving part drives the cutting part to slide. The cutter is used for cutting the cylinder wall of the cylinder section in the radial direction. By means of the precise edge cutting device for the large-diameter long cylinder section, the inner wall of the cylinder section can be supported through the inner supporting piece in the cylinder section cutting process, and deformation of the cylinder section caused by cutting is avoided.

Description

Technical Field

[0001] The invention relates to the field of cylinder segment processing, and in particular to a precision edge cutting device for a large-diameter long cylinder segment. Background Art

[0002] The barrel section blank often has a certain amount of excess at its ends, so the two sections of the barrel section need to be cut before welding.

[0003] The existing barrel segment processing equipment can be found in the patent application number CN201721898836.3, which supports and fixes the barrel segment through a base, and then processes the barrel segment using a processing component. However, the barrel segment is prone to deformation, and the deformation of the barrel segment will affect the processing accuracy of the barrel segment.

[0004] Therefore, how to prevent the tube segment from deforming during the cutting process is a technical problem that needs to be solved urgently. Summary of the invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and to provide a precision cutting device for large-diameter long cylinder segments, so as to solve the technical problem in the prior art of how to avoid deformation of the cylinder segments during the cutting process.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The present invention provides a large-diameter long tube segment precision trimming device, which comprises: A support assembly, comprising a base, a rotating base, an inner support member and a rotating drive member, wherein the rotating base is rotatably mounted on the base, the inner support member is mounted on the rotating base and radially supports the inner wall of the barrel section, and the rotating drive member is drivingly connected to the rotating base to drive the rotating base to rotate; and The cutting assembly includes a column, a cutting slide, a cutting piece and a lifting drive. The column is parallel to the axis of the barrel section. The cutting slide is slidably arranged on the column along the length direction of the column. The lifting drive drives the cutting slide to drive the cutting slide to slide. The cutting piece is installed on the cutting slide and is used to cut the barrel wall of the barrel section radially.

[0007] In some embodiments, the support assembly further includes a supporting member, the supporting member includes a plurality of lifting portions, the plurality of lifting portions are circumferentially mounted on the rotating seat, the lifting portions are used to support the bottom edge of the barrel section to adjust the inclination angle of the barrel section.

[0008] In some embodiments, the lifting part includes a lifting hydraulic cylinder, the cylinder body of the lifting hydraulic cylinder is installed on the rotating seat, and the piston rod of the lifting hydraulic cylinder supports the bottom edge of the cylinder section.

[0009] In some embodiments, the internal support member includes a base column, a first internal support portion and a second internal support portion. The base column is installed on the rotating seat, the first internal support portion is sleeved on the bottom of the base column, and the first internal support portion has a first state of radial expansion to support the inner wall of the barrel section, and a second state of radial contraction to disengage from the inner wall of the barrel section. The second internal support portion is slidably sleeved on the base column, and it can stay at any position on its sliding trajectory. The second internal support portion has a third state of radial expansion to support the inner wall of the barrel section, and a fourth state of radial contraction to disengage from the inner wall of the barrel section.

[0010] In some embodiments, the first inner support portion includes a first disc, a plurality of first pressure blocks corresponding to each other one by one, and a plurality of first inner support hydraulic cylinders, the first disc is sleeved on the bottom end of the base column, the plurality of first pressure blocks are arranged along the circumference of the first disc, and the first pressure block slides along the radial direction of the first disc, the cylinder body of the first inner support hydraulic cylinder is installed on the first disc, and the piston rod of the first inner support hydraulic cylinder is connected to the first pressure block.

[0011] In some embodiments, the second inner support portion includes a second disc, a plurality of second pressure blocks corresponding to each other one by one, and a plurality of second inner support hydraulic cylinders, the second disc is slidably sleeved on the base column, the plurality of second pressure blocks are arranged along the circumference of the second disc, and the second pressure blocks slide along the radial direction of the second disc, the cylinder body of the second inner support hydraulic cylinder is installed on the second disc, and the piston rod of the first inner support hydraulic cylinder is connected to the second pressure block.

[0012] In some embodiments, the inner support member further includes a first hoist, and an output end of the first hoist is connected to the second disc to drive the second disc to slide relative to the base column.

[0013] In some embodiments, the lifting drive member includes a second hoist, and an output end of the second hoist is connected to the cutting slide to drive the cutting slide to slide relative to the column.

[0014] In some embodiments, the cutting member includes a cutting motor and a cutting knife. The cutting motor is mounted on the cutting slide, and the cutting motor drives the cutting knife to rotate.

[0015] In some embodiments, the outer periphery of the rotating seat has a plurality of transmission teeth, and the rotating driving member includes a rotating motor and a driving gear. The driving gear is sleeved on the output end of the rotating motor, and the driving gear is meshed with the transmission teeth so that the rotating motor drives the rotating seat to rotate.

[0016] First, the barrel segment to be cut is sleeved on the outer periphery of the inner support member, and the inner support member is used to support the inner wall of the barrel segment in the radial direction, and the rotating drive member drives the rotating seat to rotate relative to the base, and then the inner support member can be driven to rotate. Since the cutting member continuously cuts the inner wall of the barrel segment, the cutting of a section of the barrel segment can be completed as the barrel segment rotates. Subsequently, the cutting slide is driven to move by the lifting drive member, and the position of the cutting member is adjusted so that the cutting member can cut the other end of the barrel segment. The above-mentioned large-diameter long barrel segment precision trimming device can be used to support the inner wall of the barrel segment during the cutting process of the barrel segment by the inner support member, so as to avoid deformation of the barrel segment due to cutting, thereby improving the processing accuracy of the barrel segment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 2 is a schematic structural diagram of a large-diameter long-tube segment precision trimming device provided by an embodiment of the present invention; Figure 2 It is a structural schematic diagram of another perspective of the large-diameter long-tube segment precision trimming device provided by an embodiment of the present invention; Explanation of the accompanying drawings: support assembly 100, base 110, rotating seat 120, transmission gear 121, internal support member 130, base column 131, first internal support part 132, first disc 1321, first pressure block 1322, first internal support hydraulic cylinder 1323, second internal support part 133, second disc 1331, second pressure block 1332, second internal support hydraulic cylinder 1333, first winch 134, rotating drive member 140, rotating motor 141, driving gear 142, supporting member 150, lifting part 151, lifting hydraulic cylinder 1511, cutting assembly 200, column 210, cutting slide 220, cutting member 230, cutting motor 231, cutting knife 232, lifting drive member 240, second winch 241. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] In order to solve the technical problem of how to avoid deformation of the barrel segment during the cutting process, the present invention provides a precision trimming device for large-diameter long barrel segments, which can use internal support members 130 to support the inner wall of the barrel segment, avoid deformation of the barrel segment due to cutting, and improve the processing accuracy of the barrel segment.

[0020] It should be noted that the large-diameter long cylinder section precision trimming device of the present invention is used for but not limited to cylinder section processing, etc. For the sake of convenience of explanation, in the present invention, only the large-diameter long cylinder section precision trimming device applied to cylinder section processing is used as an example for explanation, and the principle of applying the large-diameter long cylinder section precision trimming device to other types of equipment is essentially the same as the principle applied to cylinder section processing, which will not be elaborated here.

[0021] See also Figure 1 , Figure 1 1 is a schematic structural diagram of a precision trimming device for a large-diameter long cylinder section in an embodiment of the present invention. The precision trimming device for a large-diameter long cylinder section comprises a support assembly 100 and a cutting assembly 200. The support assembly 100 comprises a base 110, a rotating seat 120, an inner support member 130 and a rotating drive member 140. The rotating seat 120 is rotatably mounted on the base 110. The inner support member 130 is mounted on the rotating seat 120 to support the inner wall of the cylinder section radially. The rotating drive member 140 is transmission-connected to the rotating seat 120 to drive the rotating seat 120 to rotate. The cutting assembly 200 includes a column 210, a cutting slide 220, a cutting piece 230 and a lifting drive 240. The column 210 is parallel to the axis of the barrel section. The cutting slide 220 is slidably set on the column 210 along the length direction of the column 210. The lifting drive 240 drives the cutting slide 220 to drive the cutting slide 220 to slide. The cutting piece 230 is installed on the cutting slide 220, and is used to cut the barrel wall of the barrel section along the radial direction.

[0022] In this embodiment, the barrel section to be cut is first sleeved on the outer periphery of the inner support member 130, and the inner support member 130 is used to support the inner wall of the barrel section in the radial direction, and the rotating drive member 140 drives the rotating seat 120 to rotate relative to the base 110, and then the inner support member 130 can be driven to rotate. Since the cutting member 230 continuously cuts the inner wall of the barrel section, the cutting of a section of the barrel section can be completed as the barrel section rotates. Subsequently, the cutting slide 220 is driven to move by the lifting drive member 240, and then the position of the cutting member 230 is adjusted, so that the cutting member 230 can cut the other end of the barrel section. The above-mentioned large-diameter long barrel section precision trimming device can be used to support the inner wall of the barrel section by the inner support member 130 during the process of cutting the barrel section, so as to avoid deformation of the barrel section due to cutting, thereby improving the processing accuracy of the barrel section.

[0023] In some embodiments, the support assembly 100 further includes a supporting member 150, which includes a plurality of lifting portions 151, which are circumferentially mounted on the rotating seat 120, and the lifting portions 151 are used to support the bottom edge of the barrel section to adjust the inclination angle of the barrel section.

[0024] In this embodiment, before the inner support member 130 is used to support and fix the barrel segment, the barrel segment can be placed on each lifting portion 151. By adjusting the height of each lifting portion 151, the inclination angle of the barrel segment can be adjusted, thereby ensuring the cutting accuracy of the barrel segment by the cutting member 230.

[0025] On the basis of the above embodiments, in some of the embodiments, the lifting part 151 includes a lifting hydraulic cylinder 1511, the cylinder body of the lifting hydraulic cylinder 1511 is installed on the rotating seat 120, and the piston rod of the lifting hydraulic cylinder 1511 supports the bottom edge of the cylinder section.

[0026] In this embodiment, the piston rod of the lifting hydraulic cylinder 1511 moves relative to the cylinder body of the lifting hydraulic cylinder 1511, which can push the barrel section to move slightly. By adjusting the extension and contraction range of the piston rods of each lifting hydraulic cylinder 1511, the inclination angle of the barrel section can be changed.

[0027] In some embodiments, the internal support member 130 includes a base column 131, a first internal support portion 132 and a second internal support portion 133. The base column 131 is installed on the rotating seat 120. The first internal support portion 132 is sleeved on the bottom of the base column 131, and the first internal support portion 132 has a first state of radial expansion to support the inner wall of the barrel section, and a second state of radial contraction to separate from the inner wall of the barrel section. The second internal support portion 133 is slidably sleeved on the base column 131, and it can stay at any position on its sliding trajectory. The second internal support portion 133 has a third state of radial expansion to support the inner wall of the barrel section, and a fourth state of radial contraction to separate from the inner wall of the barrel section.

[0028] In this embodiment, when it is necessary to sleeve the barrel section on the outer periphery of the inner support member 130, the first inner support portion 132 can be adjusted to the second state, and the second inner support portion 133 can be adjusted to the fourth state, so that the first inner support portion 132 and the second inner support portion 133 are contracted in the radial direction. This is to facilitate sleeve the barrel section on the outer periphery of the first inner support portion 132 and the second inner support portion 133. When it is necessary to cut the barrel section, the first inner support portion 132 can be adjusted to the first state, and the second inner support portion 133 can be adjusted to the third state, so that the first inner support portion 132 and the second inner support portion 133 are expanded in the radial direction, thereby supporting and fixing the inner wall of the barrel section. In addition, since the second inner support portion 133 can stay at any position on its sliding track, the spacing between the first inner support portion 132 and the second inner support portion 133 can be adjusted by sliding the second inner support portion 133, so that barrel sections of different lengths can be adapted.

[0029] On the basis of the above embodiments, in some of the embodiments, the first inner support portion 132 includes a first disc 1321, a plurality of first pressure blocks 1322 corresponding to each other, and a plurality of first inner support hydraulic cylinders 1323, the first disc 1321 is sleeved on the bottom end of the base column 131, the plurality of first pressure blocks 1322 are arranged along the circumference of the first disc 1321, and the first pressure blocks 1322 slide radially along the first disc 1321, the cylinder body of the first inner support hydraulic cylinder 1323 is installed on the first disc 1321, and the piston rod of the first inner support hydraulic cylinder 1323 is connected to the first pressure block 1322.

[0030] In this embodiment, the first inner support hydraulic cylinder 1323 pushes the first pressing block 1322 to move along the radial direction of the first disc 1321, so that the first pressing block 1322 can be close to or away from the inner wall of the barrel section. When the first inner support portion 132 is in the first state, the first inner support hydraulic cylinder 1323 pushes the first pressing block 1322 to press against the inner wall of the barrel section. When the first inner support portion 132 is in the second state, the first inner support hydraulic cylinder 1323 pushes the first pressing block 1322 away from the inner wall of the barrel section.

[0031] In some of the embodiments, the second inner support portion 133 includes a second disc 1331, a plurality of second pressure blocks 1332 corresponding to each other, and a plurality of second inner support hydraulic cylinders 1333. The second disc 1331 is slidably sleeved on the base column 131, the plurality of second pressure blocks 1332 are arranged along the circumference of the second disc 1331, and the second pressure blocks 1332 slide radially along the second disc 1331. The cylinder body of the second inner support hydraulic cylinder 1333 is installed on the second disc 1331, and the piston rod of the first inner support hydraulic cylinder 1323 is connected to the second pressure block 1332.

[0032] In this embodiment, the second inner support hydraulic cylinder 1333 pushes the second pressing block 1332 to move along the radial direction of the second disc 1331, so that the second pressing block 1332 can be close to or away from the inner wall of the barrel section. When the second inner support portion 133 is in the third state, the second inner support hydraulic cylinder 1333 pushes the second pressing block 1332 to press against the inner wall of the barrel section. When the second inner support portion 133 is in the fourth state, the second inner support hydraulic cylinder 1333 pushes the second pressing block 1332 to separate from the inner wall of the barrel section.

[0033] On the basis of the above embodiments, in some of the embodiments, the inner support member 130 further includes a first hoist 134 , and the output end of the first hoist 134 is connected to the second disc 1331 to drive the second disc 1331 to slide relative to the base column 131 .

[0034] In this embodiment, the first hoist 134 drives the second disc 1331 to slide relative to the base column 131, so that the distance between the second disc 1331 and the first disc 1321 can be adjusted.

[0035] In some embodiments, the lifting drive 240 includes a second hoist 241 , and an output end of the second hoist 241 is connected to the cutting slide 220 to drive the cutting slide 220 to slide relative to the column 210 .

[0036] In this embodiment, the second hoist 241 can be used to drive the cutting slide 220 to slide relative to the column 210, thereby driving the cutting member 230 to move.

[0037] In some embodiments, the cutting member 230 includes a cutting motor 231 and a cutting blade 232 . The cutting motor 231 is installed on the cutting slide 220 , and the cutting motor 231 drives the cutting blade 232 to rotate.

[0038] In some of the embodiments, the outer periphery of the rotating base 120 has a plurality of transmission teeth 121, and the rotating driving member 140 includes a rotating motor 141 and a driving gear 142. The driving gear 142 is sleeved on the output end of the rotating motor 141, and the driving gear 142 is meshed with the transmission teeth 121, so that the rotating motor 141 drives the rotating base 120 to rotate.

[0039] In this embodiment, the rotating motor 141 drives the driving gear 142 to rotate. Since the driving gear 142 is meshed with the transmission gear 121, the rotating base 120 is finally driven to rotate.

[0040] In order to better understand the present invention, the following Figure 1 to Figure 2 The technical solution of the present invention is described in detail: First, the barrel section to be cut is sleeved on the outer periphery of the inner support member 130, and the inner support member 130 is used to support the inner wall of the barrel section in the radial direction, and the rotating drive member 140 drives the rotating seat 120 to rotate relative to the base 110, and then the inner support member 130 can be driven to rotate. Since the cutting member 230 continuously cuts the inner wall of the barrel section, the cutting of a section of the barrel section can be completed as the barrel section rotates. Subsequently, the cutting slide 220 is driven to move by the lifting drive member 240, and then the position of the cutting member 230 is adjusted so that the cutting member 230 can cut the other end of the barrel section. The above-mentioned large-diameter long barrel section precision trimming device can be used to support the inner wall of the barrel section by the inner support member 130 during the process of cutting the barrel section, so as to prevent the barrel section from being deformed due to cutting.

[0041] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A precision trimming device for large diameter long tube sections, characterized in that: include: A support assembly, comprising a base, a rotating base, an inner support member and a rotating drive member, wherein the rotating base is rotatably mounted on the base, the inner support member is mounted on the rotating base and radially supports the inner wall of the barrel section, and the rotating drive member is drivingly connected to the rotating base to drive the rotating base to rotate; as well as The cutting assembly includes a column, a cutting slide, a cutting piece and a lifting drive. The column is parallel to the axis of the barrel section. The cutting slide is slidably arranged on the column along the length direction of the column. The lifting drive drives the cutting slide to drive the cutting slide to slide. The cutting piece is installed on the cutting slide and is used to cut the barrel wall of the barrel section radially.

2. The large diameter long cylinder section precision cutting device according to claim 1 is characterized in that: The support assembly further comprises a supporting member, which comprises a plurality of lifting parts, which are circumferentially mounted on the rotating seat, and the lifting parts are used to support the bottom edge of the barrel section to adjust the inclination angle of the barrel section.

3. The large diameter long cylinder section precision trimming device according to claim 2, characterized in that: The lifting part comprises a lifting hydraulic cylinder, a cylinder body of the lifting hydraulic cylinder is installed on the rotating seat, and a piston rod of the lifting hydraulic cylinder supports the bottom edge of the cylinder section.

4. The large diameter long cylinder section precision cutting device according to claim 1 is characterized in that: The inner support component includes a base column, a first inner support portion and a second inner support portion. The base column is installed on the rotating seat. The first inner support portion is sleeved on the bottom of the base column, and the first inner support portion has a first state of radial expansion to support the inner wall of the barrel section, and a second state of radial contraction to separate from the inner wall of the barrel section. The second inner support portion is slidably sleeved on the base column, and it can stay at any position on its sliding trajectory. The second inner support portion has a third state of radial expansion to support the inner wall of the barrel section, and a fourth state of radial contraction to separate from the inner wall of the barrel section.

5. The large diameter long cylinder section precision cutting device according to claim 4 is characterized in that: The first inner support part includes a first disc, a plurality of first pressure blocks corresponding to each other one by one, and a plurality of first inner support hydraulic cylinders. The first disc is sleeved on the bottom end of the base column. The plurality of first pressure blocks are arranged along the circumference of the first disc, and the first pressure blocks slide along the radial direction of the first disc. The cylinder body of the first inner support hydraulic cylinder is installed on the first disc, and the piston rod of the first inner support hydraulic cylinder is connected to the first pressure block.

6. The large diameter long cylinder section precision cutting device according to claim 5, characterized in that: The second inner support part includes a second disc, a plurality of second pressure blocks corresponding to each other one by one, and a plurality of second inner support hydraulic cylinders. The second disc is slidably sleeved on the base column. The plurality of second pressure blocks are arranged along the circumference of the second disc, and the second pressure blocks slide along the radial direction of the second disc. The cylinder body of the second inner support hydraulic cylinder is installed on the second disc, and the piston rod of the first inner support hydraulic cylinder is connected to the second pressure block.

7. The large diameter long cylinder section precision cutting device according to claim 6, characterized in that: The inner support member further comprises a first hoist, and an output end of the first hoist is connected to the second disc to drive the second disc to slide relative to the base column.

8. The large diameter long cylinder section precision cutting device according to claim 1 is characterized in that: The lifting drive member includes a second hoist, and the output end of the second hoist is connected to the cutting slide to drive the cutting slide to slide relative to the column.

9. The large diameter long cylinder section precision trimming device according to claim 1, characterized in that: The cutting member comprises a cutting motor and a cutting knife. The cutting motor is mounted on the cutting slide, and the cutting motor drives the cutting knife to rotate.

10. The large diameter long cylinder section precision cutting device according to claim 1, characterized in that: The outer periphery of the rotating seat is provided with a plurality of transmission teeth, and the rotating driving member comprises a rotating motor and a driving gear, wherein the driving gear is sleeved on the output end of the rotating motor, and the driving gear is meshed with the transmission teeth so that the rotating motor drives the rotating seat to rotate.

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