CN115519223A - Telescopic circle cutting device and circle cutting method - Google Patents
Telescopic circle cutting device and circle cutting method Download PDFInfo
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- CN115519223A CN115519223A CN202211305425.4A CN202211305425A CN115519223A CN 115519223 A CN115519223 A CN 115519223A CN 202211305425 A CN202211305425 A CN 202211305425A CN 115519223 A CN115519223 A CN 115519223A
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- connecting rod
- cutting
- circle
- cutter
- locking bolt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/027—Carriages for supporting the welding or cutting element for making circular cuts or welds
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- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Arc Welding In General (AREA)
Abstract
The invention provides a telescopic circle cutting device and a circle cutting method. Wherein, telescopic cyclotomy device includes: the thimble is used as a circle center fulcrum when a circle is cut; one end of the fixed section connecting rod is connected with the ejector pin; the cutting torch is used for cutting operation; one end of the cutter segment connecting rod is connected with the cutting torch, and the other end of the cutter segment connecting rod is provided with a cutter segment movable groove; the middle section connecting rod is connected with one end of the fixed section connecting rod, which is far away from the thimble in a first rotating way; the other end is provided with interlude activity groove, interlude activity groove passes through the fastener second with cutter section activity groove and rotates to be connected, the fastener inserts in interlude activity groove and the cutter section activity groove and can slide wantonly in each groove, first, two rotate to connect lockable and unblock. The invention solves the limitations and disadvantages of the PT subsection pipe hole opening operation in the prior art, and has the advantages of good forming, low polishing workload, high efficiency, simple and convenient operation and the like.
Description
Technical Field
The invention relates to the field of machining, in particular to a marine telescopic circle cutting device and a circle cutting method in the field of ship construction.
Background
The traditional cutting mode is that a numerical control plasma cutting machine is adopted to cut a steel plate raw material into parts according to a drawing and a program, and then the parts are assembled in the next step. However, for some special section bars, such as section steel, angle steel, etc., and assembled parts which need to be cut into holes and circles, the numerical control plasma cutting machine has great limitation.
The common hole forming methods of modern shipyards are many, and the water flow holes of the section steel and the battens are formed by manual cutting; large, batch holes are typically drilled using a numerically controlled plasma cutter, laser cutter, or the like. However, the numerical control cutting machine can only perform cutting operation on a cutting platform, the LNG (liquefied natural gas) ship dome is embedded in a section (PT section), the pipe hole of an inner deck of the section can be drilled by the numerical control cutting machine, the holes of various pipe systems on the PT section must be drilled accurately, the pipe holes on an upper deck and the inner deck must be concentric circles, and if the pipe hole of the upper deck is drilled by the numerical control cutting machine, the concentricity of the pipe holes of the upper deck and the inner deck cannot be guaranteed.
In the conventional LNG ship dome embedding and segmenting manufacturing process, the circle center is quickly reversed by using the known hole size of an inner deck and a concentric circle center calculating device, then the concentric circle circumference of an upper deck is drawn, and holes are manually formed along the circumference by using a hand cutter, so that the operation is manual operation, and the cutting precision and the quality are difficult to guarantee. Considering that the inner deck of the PT section of the LNG ship is made of stainless steel, the upper deck of the PT section is made of carbon steel, the material is special, the requirement on cutting precision is particularly high, and the precision of the PT section cannot be guaranteed through manual cutting. Firstly, manual cutting is easy to cause unsmooth cutting section due to human error, concave-convex sawtoothed shapes are generated, and the forming effect is not ideal; secondly, the manual cutting efficiency is low, the speed is slow, and the production progress is influenced.
Disclosure of Invention
The invention aims to provide a telescopic circle cutting device and a circle cutting method, which solve the limitations and disadvantages of PT subsection pipe hole opening operation by combining numerical control cutting and manual cutting in the prior art, improve the original manual cutting into semi-automatic cutting by using the circle cutting device, and have the advantages of good forming, low grinding workload, high efficiency, simple and convenient operation and the like.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a telescopic cyclotomic device comprising:
the thimble is used as a centre fulcrum when cutting a circle;
one end of the fixed-section connecting rod is connected with the thimble;
the cutting torch is used for cutting operation;
one end of the cutter segment connecting rod is connected with the cutting torch, and the other end of the cutter segment connecting rod is provided with a cutter segment movable groove extending towards the cutting torch;
the middle section connecting rod is connected with the end part, far away from the thimble, of the fixed section connecting rod in a first rotating way, and the angle between the middle section connecting rod and the fixed section connecting rod can be adjusted; the other end of the connecting rod is provided with a middle section movable groove extending towards the direction of the fixed end connecting rod, the middle section movable groove and the cutter section movable groove are in second rotary connection through a fastener, and the angle between the middle section connecting rod and the cutter section connecting rod can be adjusted; the fastener inserts in interlude activity groove and cutter section activity groove and can slide wantonly in each groove, first, two rotate to connect lockable and unblock.
Preferably, the fastening element is a second locking bolt device, by means of which the locking and unlocking of the second rotary connection is effected.
Preferably, a first through hole is formed in the end part, far away from the thimble, of the fixed section connecting rod, and a second through hole matched with the end part, connected with the fixed section connecting rod, of the middle section connecting rod is formed;
the middle section connecting rod and the fixed section connecting rod are connected in a first rotating mode through a first locking bolt device inserted into the first through hole and the second through hole, and locking and unlocking of the first rotating connection are achieved through the first locking bolt device.
Preferably, be equipped with the interlude connecting rod of a plurality of concatenations between fixed section connecting rod and the cutter section connecting rod, its quantity can be according to cutting circle size adjustment.
Preferably, the cutter segment connecting rod is detachably connected with the cutting torch through a cutting torch connecting part arranged at the end part.
Preferably, the cutting torch connecting part is a sleeve structure matched with the outer wall of the cutting torch and can be sleeved and fixed outside the cutting torch.
Preferably, the cutting torch is a hand cutter or a straight cutter.
A circle cutting method is realized based on the telescopic circle cutting device, and comprises the following steps:
unlocking the first locking bolt device and/or the second locking bolt device, adjusting the angle of the first rotary connection and/or the second rotary connection and the position of the second locking bolt device in the middle section movable groove and the cutter section movable groove according to the radius of the designed cutting circle, enabling the distance between the ejector pin and the cutting torch to be equal to the radius of the designed cutting circle, and locking the first locking bolt device and/or the second locking bolt device; then, the thimble is positioned to the position of the center of the designed circle to be cut, and the cutting torch is rotated by taking the thimble as the center of the circle to cut the circle or the arc.
Preferably, the method further comprises the following steps:
the interlude connecting rod can a plurality of series connection uses, through increasing or reducing the quantity of the interlude connecting rod between canned paragraph connecting rod and the cutter section connecting rod, realizes not unidimensional requirement's circle cutting demand.
Preferably, the method further comprises the following steps:
for a sample with a cutting circle, the radius size of the cutting circle can be directly copied by adjusting the first locking bolt device and/or the second locking bolt device to enable the thimble and the cutting torch to be respectively positioned at the circle center and the outer edge of the sample with the cutting circle without measuring the radius size of the cutting circle, and then a circle or an arc with the same radius as the sample with the cutting circle is cut.
In summary, compared with the prior art, the telescopic circle cutting device and the circle cutting method provided by the invention have the following beneficial effects:
1. through the design of the middle section movable groove, the cutter section movable groove and the first and second rotary connections, the radius of the circle to be cut and the angle between each connecting plate can be quickly and flexibly adjusted according to requirements, so that the cutting operation is more flexible and convenient, the process of drawing the circle is omitted, and the operation efficiency is obviously improved;
2. through the design of the middle section connecting rods which can be used in series, circles can be cut in different sizes by increasing or reducing the number of the middle section connecting rods, the cutting requirements of all circles in the ship body construction process are met, and the production cost is obviously reduced;
3. the invention can directly copy the circle cutting sample without measuring the radius size of the circle cutting, thereby improving the working efficiency;
4. the invention realizes the rail-bound cutting of circular or arc-shaped parts, avoids the error of manual cutting, ensures that the sizes of the cut parts are consistent, ensures that the cutting section is smooth and flat, and improves the precision of the parts;
5. the telescopic circle cutting device is small and exquisite in size, convenient to move, simple to operate and wide in application range.
Drawings
FIG. 1 is a schematic structural view of a telescopic cyclotomic device according to the present invention;
figure 2 is a schematic view of a circle cutting operation performed by the telescopic circle cutting device of the present invention.
Detailed Description
The telescopic circle cutting device and the circle cutting method provided by the invention are further described in detail with reference to the accompanying drawings and the detailed description. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are simplified in form and not to precise scale, and are only used for convenience and clarity to assist in describing the embodiments of the present invention, but not for limiting the conditions of the embodiments of the present invention, and therefore, the present invention is not limited by the technical spirit, and any structural modifications, changes in the proportional relationship, or adjustments in size, should fall within the scope of the technical content of the present invention without affecting the function and the achievable purpose of the present invention.
It is to be noted that, in the present invention, relational terms such as and, etc., are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
With reference to fig. 1-2, the present invention provides a telescopic circle cutting device, as shown in fig. 1, the device comprises:
the thimble 1 is used as a centre fulcrum when cutting a circle;
the two ends of the fixed-section connecting rod 2 are respectively a thimble end and a centrifugal end, and the thimble end is connected with the thimble 1; the connection mode of the thimble end and the thimble 1 can be fixed connection or detachable connection; the length of the fixed section connecting rod 2 is not specifically limited in the embodiment, and can be determined according to the design requirement of a specific cutting circle;
the cutting torch 6 is used for cutting operation, adopts the cutting torch in the prior art, preferably selects a hand cutter or a straight cutter, and has better cutting effect;
a cutting torch connecting rod 5 having a cutting torch connecting portion 52 connected to the cutting torch 6 at one end thereof and a cutting torch movable groove 51 extending in a direction of the cutting torch connecting portion 52 at the other end thereof; preferably, in some embodiments, the connection between torch connection 52 and torch 6 is a detachable connection, allowing torch 6 to be replaced as needed; more preferably, in some embodiments, the cutting torch connecting portion 52 is a sleeve structure adapted to an outer wall of the cutting torch 6, and can be sleeved and fixed outside the cutting torch 6, so that the operation of replacing the cutting torch 6 is more convenient; in the embodiment, the length of the tool section connecting rod 5 is not specifically limited, and can be determined according to the specific circle cutting design requirement;
one end of the middle section connecting rod 4 is a near-center connecting part which is in first rotary connection with the centrifugal end of the fixed section connecting rod 2, and the angle of the first rotary connection can be adjusted and then locked, so that the angle between the middle section connecting rod 4 and the fixed section connecting rod 2 can be adjusted; the other end is a middle section movable groove 41 extending towards the direction of the proximal connection part, the middle section movable groove 41 is connected with a cutter section movable groove 51 of the cutter section connecting rod 5 through a second locking bolt device 32, wherein the second locking bolt device 32 is inserted into the middle section movable groove 41 and the cutter section movable groove 51 and can slide freely in the two grooves, the second locking bolt device 32 can be locked and unlocked, so that the angle between the middle section connecting rod 4 and the cutter section connecting rod 5 can be adjusted, and the distance between the proximal connection part of the middle section connecting rod 4 and the cutting torch 6 can be changed by adjusting the positions of the second locking bolt device 32 in the middle section movable groove 41 and the cutter section movable groove 51; the distance between the thimble 1 and the cutting torch 6, namely the radius of the cutting circle can be changed through the first rotary connection and/or the second rotary connection; preferably, in some embodiments, the eccentric end of the fixed-section connecting rod 2 is provided with a first through hole, the proximal connection portion of the middle-section connecting rod 4 is a second through hole matched with the first through hole, and the middle-section connecting rod 4 and the fixed-section connecting rod 2 are in first rotation connection through a first locking bolt device 31 inserted into the first and second through holes; the first locking bolt device and the second locking bolt device (31 and 32) can realize locking or unlocking between the connecting rods connected with the two ends of the self-body bolts through screwing or loosening the self-body bolts, the connecting rods at the two ends cannot relatively rotate (and slide) after being locked, and the connecting rods can relatively rotate (and slide) after being unlocked; the length of the middle section connecting rod 4 is not specifically limited in this embodiment, and can be determined according to the specific design requirement of a circle cutting; optionally, be equipped with the interlude connecting rod 4 of a plurality of series connections between fixed segment connecting rod 2 and cutter section connecting rod 5, its quantity can be adjusted according to concrete cyclotomy size.
Referring to fig. 2, the present embodiment further provides a circle cutting method, which is implemented based on any one of the telescopic circle cutting devices, and includes:
1. unlocking the first locking bolt device 31 and/or the second locking bolt device 32, adjusting the angle of the first rotary connection and/or the second rotary connection and the position of the second locking bolt device 32 in the middle section movable groove 41 and the cutter section movable groove 51 according to the radius of the designed cutting circle, enabling the distance between the thimble 1 and the cutting torch 6 to be equal to the radius of the designed cutting circle, and locking the first locking bolt device 31 and/or the second locking bolt device 32; then, positioning the thimble 1 to the position of the center of a designed circle to be cut, and rotating the cutting torch 6 by taking the thimble 1 as the center of the circle to cut the circle or the arc;
2. the middle section connecting rods 4 can be used in series, and the circle cutting requirements with different size requirements are met by increasing or reducing the number of the middle section connecting rods 4 between the fixed section connecting rods 2 and the cutter section connecting rods 5;
3. for the sample with the circle to be cut, the radius size of the circle to be cut can be copied by directly adjusting the first locking bolt device 31 and/or the second locking bolt device 32 to respectively position the thimble 1 and the cutting torch 6 at the center and the outer edge of the circle to be cut without measuring the radius size of the circle to be cut, and then the circle or the arc with the same radius as the circle to be cut can be cut by the circle cutting method.
In conclusion, according to the telescopic circle cutting device and the circle cutting method provided by the invention, through the design of the middle section movable groove, the cutter section movable groove and the first and second rotary connections, the circle cutting radius and the angle between the connecting plates can be quickly and flexibly adjusted according to the needs, so that the cutting operation is more flexible and convenient, the process of drawing a circle is omitted, and the operation efficiency is obviously improved; by designing the middle section connecting rods which can be used in series, circles can be cut in different sizes by increasing or reducing the number of the middle section connecting rods, the cutting requirements of all circles in the ship body construction process are met, and the production cost is obviously reduced; the circle cutting sample can be directly copied without measuring the radius size of the circle cutting, so that the working efficiency is improved; the rail-guided cutting of circular or arc-shaped parts is realized, the error of manual cutting is avoided, the sizes and the dimensions of the cut parts are consistent, the cutting section is smooth and flat, and the part precision is improved; the telescopic circle cutting device is small and exquisite in size, convenient to move, simple to operate and wide in application range.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
1. A telescopic cyclotomic device, comprising:
the thimble is used as a circle center fulcrum when a circle is cut;
one end of the fixed section connecting rod is connected with the ejector pin;
the cutting torch is used for cutting operation;
one end of the cutter segment connecting rod is connected with the cutting torch, and the other end of the cutter segment connecting rod is provided with a cutter segment movable groove extending towards the cutting torch;
the middle section connecting rod is connected with the end part, far away from the thimble, of the fixed section connecting rod in a first rotating way, and the angle between the middle section connecting rod and the fixed section connecting rod can be adjusted; the other end of the connecting rod is provided with a middle section movable groove extending towards the direction of the fixed end connecting rod, the middle section movable groove and the cutter section movable groove are in second rotary connection through a fastener, and the angle between the middle section connecting rod and the cutter section connecting rod can be adjusted; the fastener inserts in interlude section activity groove and cutter section activity groove and can slide wantonly in each groove, first, two rotate to connect lockable and unblock.
2. The telescopic cyclotomic device of claim 1,
the fastener is a second locking bolt device, and locking and unlocking of the second rotational connection is achieved through the second locking bolt device.
3. The telescopic cyclotomic device of claim 1,
the end part of the fixed section connecting rod, which is far away from the thimble, is provided with a first through hole, and the end part of the middle section connecting rod, which is connected with the fixed section connecting rod, is provided with a second through hole which is adaptive to the first through hole;
the middle section connecting rod and the fixed section connecting rod are connected in a first rotating mode through a first locking bolt device inserted into the first through hole and the second through hole, and locking and unlocking of the first rotating connection are achieved through the first locking bolt device.
4. The telescopic cyclotomic device of claim 1,
be equipped with the interlude connecting rod of a plurality of series connections between fixed segment connecting rod and the cutter section connecting rod, its quantity can be according to cutting the circle size adjustment.
5. The telescopic cyclotomic device of claim 1,
the cutter segment connecting rod is detachably connected with the cutting torch through a cutting torch connecting part arranged at the end part.
6. The telescopic cyclotomic device of claim 5,
the cutting torch connecting part is of a sleeve structure matched with the outer wall of the cutting torch and can be sleeved and fixed outside the cutting torch.
7. The telescopic cyclotomic device of claim 1,
the cutting torch is a hand cutter or a straight cutter.
8. A method for cutting circles, which is realized based on the telescopic circle cutting device of any one of claims 1 to 7, and comprises the following steps:
unlocking the first locking bolt device and/or the second locking bolt device, adjusting the angle of the first rotary connection and/or the second rotary connection and the position of the second locking bolt device in the middle section movable groove and the cutter section movable groove according to the radius of the designed cutting circle, enabling the distance between the ejector pin and the cutting torch to be equal to the radius of the designed cutting circle, and locking the first locking bolt device and/or the second locking bolt device; then, the thimble is positioned to the position of the center of the designed circle to be cut, and the cutting torch is rotated by taking the thimble as the center of the circle to cut the circle or the arc.
9. The rounding method according to claim 8, further comprising:
the interlude connecting rod can a plurality of series connection uses, through the quantity that increases or reduces the interlude connecting rod between canned paragraph connecting rod and the cutter section connecting rod, realizes the cyclotomy demand of different dimensional requirements.
10. The rounding method of claim 8, further comprising:
for a sample with a cutting circle, the radius size of the cutting circle can be directly copied by adjusting the first locking bolt device and/or the second locking bolt device to enable the thimble and the cutting torch to be respectively positioned at the circle center and the outer edge of the sample with the cutting circle without measuring the radius size of the cutting circle, and then a circle or an arc with the same radius as the sample with the cutting circle is cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211305425.4A CN115519223A (en) | 2022-10-24 | 2022-10-24 | Telescopic circle cutting device and circle cutting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211305425.4A CN115519223A (en) | 2022-10-24 | 2022-10-24 | Telescopic circle cutting device and circle cutting method |
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| Publication Number | Publication Date |
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| CN115519223A true CN115519223A (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211305425.4A Pending CN115519223A (en) | 2022-10-24 | 2022-10-24 | Telescopic circle cutting device and circle cutting method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116810098A (en) * | 2023-06-05 | 2023-09-29 | 安徽晶卓航智能科技有限公司 | Automatic slag distribution submerged arc welding device for circling welding |
-
2022
- 2022-10-24 CN CN202211305425.4A patent/CN115519223A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116810098A (en) * | 2023-06-05 | 2023-09-29 | 安徽晶卓航智能科技有限公司 | Automatic slag distribution submerged arc welding device for circling welding |
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