CN112894182A - Universal clamp for processing circular tube by optical fiber laser cutting machine and use method - Google Patents
Universal clamp for processing circular tube by optical fiber laser cutting machine and use method Download PDFInfo
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- CN112894182A CN112894182A CN202110121841.8A CN202110121841A CN112894182A CN 112894182 A CN112894182 A CN 112894182A CN 202110121841 A CN202110121841 A CN 202110121841A CN 112894182 A CN112894182 A CN 112894182A
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- 238000003698 laser cutting Methods 0.000 title claims abstract description 38
- 239000013307 optical fiber Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005520 cutting process Methods 0.000 claims abstract description 92
- 239000000835 fiber Substances 0.000 claims description 15
- 210000001503 joint Anatomy 0.000 claims description 13
- 238000003754 machining Methods 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 241000220317 Rosa Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Classifications
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- 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
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
Abstract
The invention relates to a universal fixture for processing a circular tube by an optical fiber laser cutting machine and a using method thereof, and the universal fixture comprises a fixed base and a positioning block, wherein a positioning clamp matched with a circular tube workpiece is arranged on the fixed base, a length positioning reference part matched with the positioning clamp is arranged at one edge of the fixed base, the length positioning reference part is positioned at the tail end of the positioning clamp, the outer edge of the positioning block is of a regular polygon structure, the positioning block is detachably and fixedly connected with one end of the circular tube workpiece, the circular tube workpiece with the positioning block sleeved at one end is placed in the positioning clamp, the bottom edge of the positioning block is contacted with the fixed base, and the other end of the circular tube workpiece, which is far away. The positioning block is in regular polygon shape, the regular polygon structure of the positioning block corresponds to equal cutting of the circular pipe workpiece, and the circular pipe workpiece can be accurately cut by rotating the positioning block in the cutting process.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a universal fixture for machining a circular tube by using an optical fiber laser cutting machine and a using method.
Background
The fiber laser cutting machine is a laser cutting machine which uses a fiber laser generator as a light source, the fiber laser is a novel fiber laser which is newly developed internationally and outputs a laser beam with high energy density, the laser beam is gathered on the surface of a workpiece, an area irradiated by a superfine focus spot on the workpiece is instantly melted and gasified, and the spot irradiation position is moved by a numerical control mechanical system to realize automatic cutting. Compared with a gas laser and a solid laser which are large in size, the laser has obvious advantages. The existing laser cutting machine is used for processing more equally divided workpieces of a circular pipe, the circular pipe cannot be directly placed on a workbench, the existing sawtooth platform can be used for processing only one workpiece, an equal division line needs to be drawn during processing of each workpiece, and then the starting point and the length are positioned according to the equal division line, so that the efficiency is low, the precision is poor, the circular pipe is not suitable for large-batch processing, time and labor are wasted, and the efficiency is low.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a universal fixture for processing a circular tube by using an optical fiber laser cutting machine and a using method thereof.
The technical purpose of the invention is realized by the following technical scheme:
general fixture of optic fibre laser cutting machine processing pipe, including unable adjustment base and locating piece, the last location screens that is provided with pipe work piece adaptation of unable adjustment base, one of them edge of unable adjustment base be provided with location screens complex length location reference portion, length location reference portion is located the end of location screens, the outward flange of locating piece is regular polygon's structure, the locating piece places in the location screens with the pipe work piece's one end detachably fixed connection, and the pipe work piece that an pot head was equipped with the locating piece, and the base and the contact of unable adjustment base of locating piece, the other end that the locating piece was kept away from to the pipe work piece supports length location reference portion.
In one embodiment, the middle of the positioning block is provided with a butt joint hole matched with the circular tube workpiece, the inner diameter of the butt joint hole is equal to the outer diameter of the circular tube workpiece, and one end of the circular tube workpiece is embedded into the butt joint hole and connected with the positioning block.
In one embodiment, the number of sides of the outer edge of the regular polygon of the positioning block is equal to the equal number of the equal parts of the circular tube workpiece. The equal cutting of the circular tube workpiece can be realized through the rotation of the positioning block.
In one embodiment, the outer edge of the positioning block comprises at least three edges. That is, the locating piece is the regular triangle structure at least, and the number of sides of locating piece is confirmed by several equant cutting pipe work pieces, for example when needing quartering cutting pipe work piece, the number of sides of locating piece is the multiple of four, and the locating piece can be the structure of regular quadrangle, regular octagon or regular dodecagon promptly.
In one embodiment, the positioning clamp comprises a plurality of positioning plates, the plurality of positioning plates are all arranged on the fixed base, two adjacent positioning plates are arranged in parallel, the positioning plates are arranged in parallel with the length positioning reference part, and a plurality of positioning notches matched with the round pipe workpiece are arranged on the positioning plates. The circular tube workpieces are placed at the positioning notches of the positioning plates, and one ends of the circular tube workpieces, which are far away from the positioning blocks, abut against the length positioning reference parts, so that the cutting starting points of all the circular tube workpieces are consistent during cutting.
In one embodiment, the other edge of the fixed base is provided with an auxiliary reference part perpendicular to the length positioning reference part. The auxiliary reference part and the positioning plate are in a mutually perpendicular state, and the circular tube workpieces need to abut against the length positioning reference part before cutting, so that whether all the circular tube workpieces abut against the length positioning reference part or not is observed through the auxiliary reference part.
In one embodiment, the bottom end of the positioning plate is of an inverted T-shaped structure, the fixed base is provided with an inverted T-shaped first slot matched with the bottom end of the positioning plate, and the bottom end of the positioning plate is inserted into the first slot of the fixed base to fixedly connect the positioning plate with the fixed base. The proper positioning plate can be selected according to the round pipe workpiece to be cut, and then the positioning plate is installed on the fixed base.
In one embodiment, the bottom end of the length positioning reference part is of an inverted T-shaped structure, the fixed base is provided with an inverted T-shaped second slot matched with the bottom end of the length positioning reference part, and the bottom end of the length positioning reference part is inserted into the second slot of the fixed base so that the length positioning reference part is fixedly connected with the fixed base. Because the size of the pipe work piece that needs the cutting is different with the height of locating plate, if the height of length location benchmark portion is too high, can influence fiber laser cutting machine's cutting effect, consequently need select the length location benchmark portion of suitable height according to the size of waiting to cut pipe work piece and the height of locating plate, insert the second slot of fixed baseplate with the bottom of length location benchmark portion in, length location benchmark portion can realize fixed connection with fixed baseplate.
The use method of the universal fixture for processing the round tube by the optical fiber laser cutting machine comprises two steps of positioning and cutting;
positioning: placing a plurality of circular tube workpieces on a positioning clamp position, wherein one end of each circular tube workpiece is abutted against a length positioning reference part, so that the cutting starting points of the circular tube workpieces are consistent, selecting a corresponding positioning block with a regular polygon structure according to the equal cutting quantity of the circular tube workpieces, embedding the circular tube workpieces into a butt joint hole of the positioning block and fixedly connecting the positioning block, the bottom edges of the positioning blocks are contacted with a fixing base, so that the circular tube workpieces are stably placed on the positioning clamp position, and the top ends of the circular tube workpieces form a stable cutting plane;
cutting: the optical fiber laser cutting machine cuts the circular pipe workpiece on the positioning clamping position, after cutting is completed, the positioning block is rotated to enable the circular pipe workpiece to rotate along with the circular pipe workpiece, the position of the circular pipe workpiece, which is cut, is rotated out of a cutting plane, the position of the circular pipe workpiece, which is not cut, is rotated to the cutting plane, then the optical fiber laser cutting machine cuts again, the operation is repeated until the circular pipe workpiece is cut in an equal division mode, the circular pipe workpiece is separated from the positioning block, and the circular pipe workpiece is dismounted.
In one embodiment, round pipe workpieces with different equal cutting numbers can be simultaneously machined in the same machining process;
in the positioning step, positioning blocks of different regular polygons are simultaneously selected, and the corresponding positioning blocks of the regular polygon structure are selected according to the equal cutting number of the circular tube workpiece, so that the circular tube workpiece is fixedly connected with the corresponding positioning blocks;
in the cutting step, the optical fiber laser cutting machine cuts the circular tube workpiece on the positioning clamping position, after the cutting is finished, the positioning block is rotated to enable the circular tube workpiece to rotate along with the positioning block, the position, which is cut on the circular tube workpiece, is rotated out of the cutting plane, the position, which is not cut on the circular tube workpiece, is rotated to the cutting plane, then the optical fiber laser cutting machine performs cutting again, the operations are repeated, the circular tube workpiece with small number of equal cutting is cut firstly, the circular tube workpiece which is cut is dismounted firstly from the fixed base, the circular tube workpiece which is not cut is continuously cut until all the circular tube workpieces are cut, the circular tube workpiece is separated from the positioning block, and the rest circular tube workpieces are dismounted from the fixed base.
The invention has the following beneficial effects:
the positioning block has the function of determining the equally-divided cutting number of the circular tube workpiece, the positioning block is of a regular polygon structure and is the same as the number of the circular tube workpiece needing equally-divided cutting, the bottom edge of the positioning block is parallel to a cutting plane when the circular tube workpiece is cut, the bottom of the positioning block is in contact with the fixed base, so that the circular tube workpiece is stably placed on the positioning clamping position, the top end of the circular tube workpiece is a cutting plane, the position of the circular tube workpiece is fixed through the regular polygon positioning block, the regular polygon structure of the positioning block corresponds to the equally-divided cutting of the circular tube workpiece, and in the cutting process, the circular tube workpiece can be accurately cut by rotating the positioning block.
The fixed base has the advantages of simple structure, convenience in operation and higher precision of a finished product of cutting processing, a plurality of workpieces can be placed on the fixed base at one time, the working efficiency of cutting processing is improved, and the time for manual positioning is effectively reduced.
Drawings
FIG. 1 is a schematic of the present invention.
In the figure: the method comprises the following steps of 1-round pipe workpiece, 2-positioning plate, 3-positioning block, 4-length positioning reference part, 5-auxiliary reference part, 6-fixed base, 7-positioning notch and 8-butt joint hole.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
It should be noted that all the directional terms such as "upper" and "lower" referred to herein are used with respect to the view of the drawings, and are only for convenience of description, and should not be construed as limiting the technical solution.
As shown in fig. 1, the invention provides a universal fixture for processing a circular tube by using an optical fiber laser cutting machine, which comprises a fixed base 6 and a positioning block 3, wherein a positioning clamp matched with a circular tube workpiece 1 is arranged on the fixed base 6, a length positioning reference part 4 matched with the positioning clamp is arranged on one edge of the fixed base 6, the length positioning reference part 4 is positioned at the tail end of the positioning clamp, the outer edge of the positioning block 3 is of a regular polygon structure, the positioning block 3 is detachably and fixedly connected with one end of the circular tube workpiece 1, the circular tube workpiece 1 with one end sleeved with the positioning block 3 is placed in the positioning clamp, the bottom edge of the positioning block 3 is in contact with the fixed base 6, and the other end, far away from the positioning block 3, of the circular tube workpiece 1 abuts against the length. Wherein, the fixed baseplate 6 needs to use the great panel of thickness, prevent that the fixed baseplate 6 from taking place the heat altered shape and leading to pipe work piece 1 to move, place on the location screens at pipe work piece 1, the one end of pipe work piece 1 and the 3 fixed connection backs of locating piece, the base of locating piece 3 just can contact with fixed baseplate 6, namely, the height that the locating piece 3 made pipe work piece 1 rise makes pipe work piece 1 the same with the height that the location screens rose, just so can be pipe work piece 1 stably place on the location screens. When the number of the outer edges of the positioning blocks 3 is even, the edges of two adjacent positioning blocks 3 can be attached to each other, so that the circular tube workpiece 1 is stabilized.
The positioning block 3 plays a role in determining the equally-divided cutting number of the circular tube workpiece 1, the positioning block 3 is of a regular polygon structure and is the same as the circular tube workpiece 1 in number which needs to be equally divided, meanwhile, the bottom edge of the positioning block 3 is parallel to a cutting plane when the circular tube workpiece 1 is cut, the bottom of the positioning block 3 is in contact with the fixed base 6, so that the circular tube workpiece 1 is stably placed on the positioning clamp position, and at the moment, the top end of the circular tube workpiece 1 is the cutting plane. For example, if the circular tube workpiece 1 needs to be cut into five equal parts, the regular pentagonal positioning block 3 is selected to be fixedly connected with one end of the circular tube workpiece 1. Because the bottom of locating piece 3 and fixed baseplate 6 contact, the base and the fixed baseplate 6 contact of regular pentagon locating piece 3 promptly, the cooperation of locating piece 3 and location screens makes pipe work piece 1 stably place on the location screens, the stable cutting plane is formed on the top of pipe work piece 1, optical fiber laser cutting machine accomplishes the first time cutting back, it makes another limit of locating piece 3 become the base and contact with fixed baseplate 6 to rotate locating piece 3, the part that has accomplished the cutting on pipe work piece 1 at this moment is rolled out, the part that does not cut on pipe work piece 1 rotates to the top of pipe work piece 1 and forms new cutting plane, optical fiber laser cutting machine cuts once more, repeat above-mentioned step, until pipe work piece 1 accomplishes the cutting. In the process, the positioning element rotates five times, each time the positioning element rotates 72 degrees, the round tube workpiece 1 rotates along with the positioning element, and each time the round tube workpiece 1 rotates 72 degrees, so that five cutting positions on the round tube workpiece 1 are uniformly distributed on the round tube workpiece 1, and the included angle between every two adjacent cutting positions is 72 degrees. Therefore, the invention realizes the rapid and accurate equal cutting of the circular tube workpiece 1.
In this embodiment, the middle of locating piece 3 is provided with the butt joint hole 8 with pipe work piece 1 adaptation, the internal diameter of butt joint hole 8 equals with the external diameter of pipe work piece 1, the one end embedding butt joint hole 8 of pipe work piece 1 is connected with locating piece 3. The butt joint hole 8 is located at the center of the positioning block 3, so that after the circular tube workpiece 1 is connected with the positioning block 3, the circular tube workpiece 1 is also located at the center of the positioning block 3, and the rotating angle of the positioning block 3 is consistent with the rotating angle of the circular tube workpiece 1.
In this embodiment, the number of sides of the outer edge of the regular polygon of the positioning block 3 is the same as the number of equal parts of the circular tube workpiece 1. The circular tube workpiece 1 can be equally cut through the rotation of the positioning block 3. Wherein the outer edge of the positioning block 3 comprises at least three edges. That is, the positioning block 3 is at least in a regular triangle structure, and the number of the sides of the positioning block 3 is determined by equally cutting the circular pipe workpiece 1, for example, when the circular pipe workpiece 1 needs to be cut in four equal divisions, the number of the sides of the positioning block 3 is a multiple of four, that is, the positioning block 3 may be in a regular quadrangle, regular octagon or regular dodecagon structure, as long as in the cutting process, the angle of each rotation of the positioning block 3 is 90 °.
In this embodiment, the location screens includes a plurality of locating plates 2, and is a plurality of locating plate 2 all sets up on fixed baseplate 6, two adjacent locating plates 2 parallel arrangement, and locating plate 2 and 4 parallel arrangement of length location benchmark portion, be provided with a plurality of location breach 7 with the adaptation of pipe work piece 1 on the locating plate 2. The round pipe workpieces 1 are placed at the positioning notches 7 of the positioning plates 2, and one ends, far away from the positioning blocks 3, of the round pipe workpieces 1 abut against the length positioning reference parts 4, so that the cutting starting points of all the round pipe workpieces 1 are consistent during cutting. At least, the round pipe workpiece 1 needs to be placed through the two positioning plates 2, the positioning notches 7 of the plurality of positioning plates 2 need to be in one-to-one correspondence, and the round pipe workpiece 1 is prevented from being in a skew state when the round pipe workpiece 1 is placed in the positioning notches 7.
In the present embodiment, the other edge of the fixed base 6 is provided with an auxiliary reference part 5 perpendicular to the length positioning reference part 4. Since the auxiliary reference portion 5 and the positioning plate 2 are perpendicular to each other, the round pipe work 1 needs to abut against the length positioning reference portion 4 before cutting, and whether or not all the round pipe works 1 abut against the length positioning reference portion 4 is observed by the auxiliary reference portion 5. When cutting round pipe workpieces 1 with the same size, the round pipe workpieces 1 are all placed on the positioning clamping positions, after one end of each round pipe workpiece 1 is abutted against the length positioning reference part 4, whether the round pipe workpieces 1 protrude or not is observed from the auxiliary reference part 5, if yes, the protruding round pipe workpieces 1 are not abutted against the auxiliary reference part 5, and the positions of the protruding round pipe workpieces 1 need to be adjusted.
In this embodiment, the bottom end of the positioning plate 2 is of an inverted T-shaped structure, the fixing base 6 is provided with an inverted T-shaped first slot matched with the bottom end of the positioning plate 2, and the bottom end of the positioning plate 2 is inserted into the first slot of the fixing base 6 to fixedly connect the positioning plate 2 and the fixing base 6. The proper positioning plate 2 can be selected according to the round pipe workpiece 1 to be cut, and then the positioning plate 2 is installed on the fixed base 6. The bottom end of the length positioning reference part 4 is of an inverted T-shaped structure, the fixed base 6 is provided with an inverted T-shaped second slot matched with the bottom end of the length positioning reference part 4, and the bottom end of the length positioning reference part 4 is inserted into the second slot of the fixed base 6 to fixedly connect the length positioning reference part 4 with the fixed base 6. Because the size of the circular tube workpiece 1 to be cut is different from the height of the positioning plate 2, if the height of the length positioning reference part 4 is too high, the cutting effect of the optical fiber laser cutting machine can be affected, so that the length positioning reference part 4 with a proper height needs to be selected according to the size of the circular tube workpiece 1 to be cut and the height of the positioning plate 2, the bottom end of the length positioning reference part 4 is inserted into the second slot of the fixing base 6, and the length positioning reference part 4 can be fixedly connected with the fixing base 6.
The use method of the universal fixture for processing the round tube by the optical fiber laser cutting machine is described by combining the embodiment, and comprises two steps of positioning and cutting;
positioning: placing a plurality of circular tube workpieces 1 on a positioning clamp position, wherein one end of each circular tube workpiece 1 is abutted against a length positioning reference part 4, so that the cutting starting points of the circular tube workpieces 1 are consistent, selecting a corresponding positioning block 3 with a regular polygon structure according to the equal cutting quantity of the circular tube workpieces 1, embedding the circular tube workpieces 1 into a butt joint hole 8 of the positioning block 3 to be fixedly connected with the positioning block 3, contacting the bottom edge of the positioning block 3 with a fixed base 6 to stably place the circular tube workpieces 1 on the positioning clamp position, and forming a stable cutting plane at the top end of each circular tube workpiece 1;
cutting: the optical fiber laser cutting machine cuts the circular tube workpiece 1 on the positioning clamping position, after cutting is completed, the positioning block 3 is rotated to enable the circular tube workpiece 1 to rotate along with the circular tube workpiece 1, the position of the circular tube workpiece 1, which is cut, is rotated out of a cutting plane, the position of the circular tube workpiece 1, which is not cut, is rotated to the cutting plane, then the optical fiber laser cutting machine performs cutting again, the above operations are repeated until the circular tube workpiece 1 is cut equally, the circular tube workpiece 1 is separated from the positioning block 3, and the circular tube workpiece 1 is detached.
In one embodiment, in the same processing, the circular tube workpieces 1 with different equally-divided cutting numbers can be processed simultaneously;
in the positioning step, positioning blocks 3 of different regular polygons are simultaneously selected, and the corresponding positioning blocks 3 of the regular polygon structure are selected according to the equal cutting number of the circular tube workpiece 1, so that the circular tube workpiece 1 is fixedly connected with the corresponding positioning blocks 3;
in the cutting step, the optical fiber laser cutting machine cuts the circular tube workpiece 1 on the positioning clamping position, after the cutting is finished, the positioning block 3 is rotated to enable the circular tube workpiece 1 to rotate along with the circular tube workpiece 1, the position on the circular tube workpiece 1, which is cut, is rotated out of a cutting plane, the position on the circular tube workpiece 1, which is not cut, is rotated to the cutting plane, then the optical fiber laser cutting machine performs cutting again, the operations are repeated, the circular tube workpiece 1 with small number of equal cutting is cut firstly, the circular tube workpiece 1 with the cutting finished is dismounted firstly from the fixed base 6, the circular tube workpiece 1 without the cutting finished is further cut until all the circular tube workpieces 1 are cut, the circular tube workpiece 1 is separated from the positioning block 3, and the rest circular tube workpieces 1 are dismounted from the fixed base 6.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. The universal fixture for processing the round tube by the optical fiber laser cutting machine is characterized by comprising a fixed base (6) and a positioning block (3), a positioning clamp position matched with the circular tube workpiece (1) is arranged on the fixed base (6), one edge of the fixed base (6) is provided with a length positioning reference part (4) matched with the positioning clamping position, the length positioning reference part (4) is positioned at the tail end of the positioning clamping position, the outer edge of the positioning block (3) is of a regular polygon structure, the positioning block (3) is detachably and fixedly connected with one end of the circular tube workpiece (1), the circular tube workpiece (1) with one end sleeved with the positioning block (3) is placed in the positioning clamping position, the bottom edge of the positioning block (3) is contacted with the fixed base (6), and the other end of the circular tube workpiece (1) far away from the positioning block (3) is propped against the length positioning reference part (4).
2. The universal fixture for processing the circular tube by the fiber laser cutting machine according to claim 1, wherein a butt joint hole (8) matched with the circular tube workpiece (1) is formed in the middle of the positioning block (3), the inner diameter of the butt joint hole (8) is equal to the outer diameter of the circular tube workpiece (1), and one end of the circular tube workpiece (1) is embedded into the butt joint hole (8) and connected with the positioning block (3).
3. The universal fixture for processing the round tube by the fiber laser cutting machine according to claim 2, wherein the number of the edges of the regular polygon of the positioning block (3) is the same as the number of the equal parts of the round tube workpiece (1).
4. The universal fixture for fiber laser cutting machining circular tubes according to claim 3, wherein the outer edge of the positioning block (3) comprises at least three sides.
5. The universal fixture for processing the round tube by the fiber laser cutting machine according to claim 4, characterized in that the positioning clamp comprises a plurality of positioning plates (2), the plurality of positioning plates (2) are all arranged on the fixed base (6), two adjacent positioning plates (2) are arranged in parallel, the positioning plates (2) are arranged in parallel with the length positioning reference part (4), and a plurality of positioning notches (7) matched with the round tube workpiece (1) are arranged on the positioning plates (2).
6. The universal fixture for fiber laser cutting machining circular tubes according to claim 5, characterized in that the other edge of the fixed base (6) is provided with an auxiliary reference part (5) perpendicular to the length positioning reference part (4).
7. The universal fixture for processing the round tube by the fiber laser cutting machine according to claim 6, wherein the bottom end of the positioning plate (2) is of an inverted T-shaped structure, the fixing base (6) is provided with an inverted T-shaped first slot matched with the bottom end of the positioning plate (2), and the bottom end of the positioning plate (2) is inserted into the first slot of the fixing base (6) to fixedly connect the positioning plate (2) and the fixing base (6).
8. The universal fixture for processing the round tube by the fiber laser cutting machine according to claim 7, wherein the bottom end of the length positioning reference part (4) is of an inverted T-shaped structure, the fixing base (6) is provided with an inverted T-shaped second slot matched with the bottom end of the length positioning reference part (4), and the bottom end of the length positioning reference part (4) is inserted into the second slot of the fixing base (6) so that the length positioning reference part (4) is fixedly connected with the fixing base (6).
9. The use method of the universal fixture for processing the round tube by the fiber laser cutting machine according to claim 8 is characterized by comprising two steps of positioning and cutting;
positioning: placing a plurality of circular tube workpieces (1) on a positioning clamp position, wherein one end of each circular tube workpiece (1) is abutted against a length positioning reference part (4) to enable cutting starting points of the circular tube workpieces (1) to be consistent, selecting corresponding positioning blocks (3) with regular polygon structures according to the equal cutting number of the circular tube workpieces (1), embedding the circular tube workpieces (1) into butt-joint holes (8) of the positioning blocks (3) to be fixedly connected with the positioning blocks (3), enabling the circular tube workpieces (1) to be stably placed on the positioning clamp position by contacting the bottom edges of the positioning blocks (3) with a fixed base (6), and enabling the top ends of the circular tube workpieces (1) to form a stable cutting plane;
cutting: the optical fiber laser cutting machine cuts the circular pipe workpiece (1) on the positioning clamping position, after the cutting is completed, the positioning block (3) is rotated to enable the circular pipe workpiece (1) to rotate along with the circular pipe workpiece, the position on the circular pipe workpiece (1) where the cutting is completed is rotated out of a cutting plane, the position on the circular pipe workpiece (1) where the cutting is not completed is rotated to the cutting plane, then the optical fiber laser cutting machine performs the cutting again, the cutting operation is repeated, the circular pipe workpiece (1) is equally divided until the circular pipe workpiece (1) is completely cut, the circular pipe workpiece (1) is separated from the positioning block (3), and the circular pipe workpiece (1).
10. The method for using the universal fixture for processing the round tube by the fiber laser cutting machine according to claim 9, wherein the round tube workpieces (1) with different equally-divided cutting numbers can be processed simultaneously in the same processing;
in the positioning step, positioning blocks (3) of different regular polygons are simultaneously selected, and the corresponding positioning blocks (3) of the regular polygon structure are selected according to the equal cutting number of the circular pipe workpiece (1), so that the circular pipe workpiece (1) is fixedly connected with the corresponding positioning blocks (3);
in the cutting step, the optical fiber laser cutting machine cuts the circular tube workpiece (1) on the positioning clamping position, after the cutting is finished, the positioning block (3) is rotated to enable the circular tube workpiece (1) to rotate along with the circular tube workpiece, the position, which is cut, of the circular tube workpiece (1) is rotated out of the cutting plane, the position, which is not cut, of the circular tube workpiece (1) is rotated to the cutting plane, then the optical fiber laser cutting machine performs cutting again, the operation is repeated, the circular tube workpiece (1) with small number of equal cutting is cut firstly, the circular tube workpiece (1) which is cut is dismounted from the fixed base (6) firstly, the circular tube workpiece (1) which is not cut is cut continuously until all the circular tube workpieces (1) are cut, the circular tube workpiece (1) is separated from the positioning block (3), and the rest of the circular tube workpiece (1) is dismounted from the fixed base (6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110121841.8A CN112894182A (en) | 2021-01-28 | 2021-01-28 | Universal clamp for processing circular tube by optical fiber laser cutting machine and use method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110121841.8A CN112894182A (en) | 2021-01-28 | 2021-01-28 | Universal clamp for processing circular tube by optical fiber laser cutting machine and use method |
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| CN112894182A true CN112894182A (en) | 2021-06-04 |
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| CN110421275A (en) * | 2019-08-15 | 2019-11-08 | 山东大图数控设备有限公司 | A kind of adjustment method of optical-fiber laser processing round tube beveling |
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Application publication date: 20210604 |