CN112935041A - Steel pipe end reinforcing bar forming machine - Google Patents
Steel pipe end reinforcing bar forming machine Download PDFInfo
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- CN112935041A CN112935041A CN202110372293.6A CN202110372293A CN112935041A CN 112935041 A CN112935041 A CN 112935041A CN 202110372293 A CN202110372293 A CN 202110372293A CN 112935041 A CN112935041 A CN 112935041A
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- mold
- die
- steel pipe
- tensioning
- outer clamping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D15/00—Corrugating tubes
- B21D15/04—Corrugating tubes transversely, e.g. helically
- B21D15/06—Corrugating tubes transversely, e.g. helically annularly
Abstract
The invention discloses a steel pipe end rib forming machine which comprises a machine body table board arranged horizontally, wherein a columnar internal tensioning mold is arranged at the top of the machine body table board, and two external clamping molds matched with the internal tensioning mold in shape are arranged on two sides of the internal tensioning mold; the outer side surface of the inner tensioning mold, which is close to the outer clamping mold, is provided with a circle of bulges along the horizontal plane direction, the side wall of the outer clamping mold, which is close to the inner tensioning mold, is provided with a circle of depressions along the horizontal plane direction, the outer side of the outer clamping mold is provided with two opposite clamping oil cylinders, and the cross section of the inner tensioning mold is annularly divided into a plurality of blocks; the separable inner tensioning die can be uniformly and radially expanded, so that the metal pipe is uniformly stressed, the roundness of the protruding rib is high, and the product defects are few.
Description
Technical Field
The invention relates to the technical field of steel pipe processing equipment, in particular to a steel pipe end reinforcement forming machine.
Background
When the automobile metal pipe section is used, a layer of rubber pipe is sleeved on the outer side in a matched mode, and the connecting and damping effects are achieved; in order to prevent the hose from falling off the end of the metal pipe, it is common practice to roll a bead around the end of the metal pipe using a flanged forming die.
However, in the case of using the rolling process, it is difficult to ensure that the stress on the entire ring of the ribbed portion is uniform, so that the roundness of the pipe section opening is not enough, which leads to poor fitting degree of the rubber pipe, and leakage is easily caused in the subsequent use process.
Disclosure of Invention
In order to solve the problems, the invention provides a steel pipe end rib forming machine which comprises a machine body table board arranged horizontally, wherein a columnar internal expansion die is arranged at the top of the machine body table board, and two external clamping dies matched with the internal expansion die in shape are arranged on two sides of the internal expansion die; the inner tensioning mold is close to the outer clamping mold, a circle of bulges are arranged on the outer side surface of the inner tensioning mold along the horizontal direction, a circle of depressions are arranged on the side wall of the outer clamping mold close to the inner tensioning mold along the horizontal direction, and two opposite clamping oil cylinders are arranged on the outer side of the outer clamping mold.
Furthermore, the inner tensioning die is nested between the machine body table board and the outer clamping die, the cross section of the inner tensioning die is divided into a plurality of blocks in an annular mode, a through hole is formed in the machine body table board, a tensioning oil cylinder is arranged below the machine body table board, a connecting screw rod is fixed at the output end of the tensioning oil cylinder, and the connecting screw rod penetrates through the through hole and extends to the position above the machine body table board.
Furthermore, the middle part of the inner tensioning die is provided with an accommodating hole for the connecting screw rod to pass through, and the outer side surface of the connecting screw rod is connected with a conical wedge block.
Furthermore, a reset tension spring is arranged on the outer side of the inner tensioning die.
Furthermore, the outer side of the outer clamping mold is connected with two sliding blocks matched with the outer clamping mold in shape, a linkage block is fixed at the telescopic end of the clamping oil cylinder, and a bolt is arranged for connecting the linkage block with the sliding blocks.
Furthermore, the internal expansion die consists of an upper die block and a lower die block, and the protrusion is arranged on the outer side surface of the upper die block.
Further, the lower module and the machine body table board are provided with a circular insertion groove in a penetrating mode, the abutting frame is arranged in the insertion groove in an insertion mode, the bottom end of the abutting frame is located below the machine body table board, and a linear driver for controlling the abutting frame to move up and down is arranged below the abutting frame.
Furthermore, a plurality of expanding rings are sleeved on the outer side of the upper module, the cross sections of the expanding rings are annularly and equally divided into a plurality of blocks, the upper module is detachably connected with adjacent expanding rings, two adjacent expanding rings are detachably connected, and the outer side surface of each expanding ring is provided with a circle of protrusions coaxial with the upper module; the inner side of the outer clamping mold is sleeved with a plurality of reducing rings, the outer clamping mold is detachably connected with the adjacent reducing rings, and the two adjacent reducing rings are detachably connected.
Furthermore, a plurality of annular insertion grooves are formed in the lower module and the platform surface of the machine body, and the insertion grooves are formed in the lower portion of the upper module and the lower portion of the expanding ring and used for placing steel pipes.
Further, the inner tensioning die and the outer clamping die are coaxially arranged.
The invention has the following beneficial effects:
1. through setting up separable interior tight mould that rises and outer clamping die utensil and toper voussoir, can drive the tight mould that rises in the drive along radial expansion through the motion of taut hydro-cylinder in the vertical direction to outwards ejecting steel pipe inner wall, thereby extrusion suddenly muscle between circular-arc arch and circular sunken, compare in the mode of roll-in, the even radial expansion of separable interior tight mould that rises, consequently the tubular metal resonator atress is even, suddenly muscle circularity is high, product defect is few.
2. The steel pipe falls onto the abutting frame in the insertion groove by arranging the insertion groove, the abutting frame is driven to move up and down by the linear driver, and the height of the protruding rib required to be formed by the steel pipe is further adjusted, so that different requirements of the height of the protruding rib required by the steel pipe are met; aiming at the steel pipe with larger inner diameter, the expanding ring can be sleeved outside the upper module, and the reducing ring is correspondingly sleeved on the inner side of the outer clamping module, so that the processing requirements of the steel pipes with different types and different inner diameters can be met.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at B;
FIG. 5 is a schematic structural diagram of a third embodiment of the present invention;
FIG. 6 is an enlarged partial schematic view at C of FIG. 5;
FIG. 7 is a schematic structural diagram of a fourth embodiment of the present invention;
FIG. 8 is an enlarged partial view of FIG. 7 at D;
fig. 9 is a top view of the internal expansion die of fig. 1.
The reference numerals are explained below: 1. a steel pipe; 2. clamping the oil cylinder; 3. a slider; 4. externally clamping the mold; 5. connecting a screw rod; 6. a tapered wedge; 7. tensioning the oil cylinder; 8. an internal expansion die; 801. an upper module; 802. a lower module; 9. a return tension spring; 10. a machine body table-board; 1001. a through hole; 11. a protrusion; 12. recessing; 13. a linkage block; 14. inserting grooves; 15. an abutting frame; 16. a linear actuator; 17. expanding the diameter of the ring; 18. a reducing ring.
Detailed Description
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention will be further described with reference to the accompanying drawings in which:
according to the first embodiment of fig. 1 and 2: a steel pipe end beading forming machine comprises a machine body table top 10 which is horizontally arranged, wherein a columnar internal expansion die 8 is arranged at the top of the machine body table top 10, and two external clamping dies 4 matched with the internal expansion die 8 in shape are arranged on two sides of the internal expansion die 8; the outer side surface of the inner tensioning mold 8, which is close to the outer clamping mold 4, is provided with a circle of protrusions 11 along the horizontal direction, the side wall of the outer clamping mold 4, which is close to the inner tensioning mold 8, is provided with a circle of recesses 12 along the horizontal direction, and the outer side of the outer clamping mold 4 is provided with two opposite clamping cylinders 2. The inner tensioning mold 8 is nested between the machine body table top 10 and the outer clamping mold 4, the cross section of the inner tensioning mold 8 is annularly and equally divided into a plurality of blocks, a through hole 1001 is formed in the machine body table top 10, a tensioning oil cylinder 7 is arranged below the machine body table top 10, a connecting screw rod 5 is fixed at the output end of the tensioning oil cylinder 7, and the connecting screw rod 5 penetrates through the through hole 1001 and extends to the upper part of the machine body table top 10; the middle part of the inner tensioning die 8 is provided with a containing hole for the connecting screw rod 5 to pass through, and the outer side surface of the connecting screw rod 5 is connected with a conical wedge block 6; a reset tension spring 9 is arranged on the outer side of the inner tensioning mold 8; the outer side of the outer clamping die 4 is connected with two sliding blocks 3 matched with the outer clamping die 4 in shape, the telescopic end of the clamping oil cylinder 2 is fixed with a linkage block 13, a bolt is arranged to connect the linkage block 13 with the sliding blocks 3, and the inner tensioning die 8 and the outer clamping die 4 are coaxially arranged.
The working process is as follows:
1. the sliding block 3 and the outer clamping mold 4 are far away from the inner tensioning mold 8 by using the clamping oil cylinder 2, the port of the steel pipe 1 is placed between the outer clamping mold 4 and the inner tensioning mold 8, and then the sliding block 3 and the outer clamping mold 4 are close to the inner tensioning mold 8 by using the clamping oil cylinder 2, so that the steel pipe 1 is clamped;
2. the connecting screw rod 5 and the conical wedge block 6 are driven to move by the tensioning oil cylinder 7, when the conical wedge block 6 moves downwards, a radial drive is provided for the inner tensioning die 8, the bulge 11 on the outer side of the inner tensioning die 8 extends out in the radial direction, and the depression 12 on the outer side of the outer clamping die 4 is clamped, so that a circle of protruding ribs are formed on the steel pipe 1 in an extrusion mode, and the upper and lower stroke points of the tensioning oil cylinder 7 can be set to prevent the inner tensioning die 8 from excessively extending in the radial direction to cause die fracture or extrusion breakage of the pipe orifice of the steel pipe 1;
3. a reset tension spring 9 is nested on the outer side surface of the inner tensioning mold 8 along the horizontal plane, and when the conical wedge block 6 moves upwards, the inner tensioning mold 8 can be reset to an initial state under the action of the reset tension spring 9;
4. the sliding block 3 and the outer clamping mold 4 are far away from the inner tensioning mold 8 by using the clamping oil cylinder 2, the metal pipe is rotated by a certain angle, the sliding block 3 and the outer clamping mold 4 are close to the inner tensioning mold 8 by using the clamping oil cylinder 2, and the processes 2 and 3 are repeated until qualified protruding ribs are obtained;
5. and the sliding block 3 and the outer clamping mold 4 are far away from the inner tensioning mold 8 by using the clamping oil cylinder 2, and the metal pipe is taken out.
According to the second embodiment of fig. 3 and 4: a steel pipe end beading forming machine comprises a machine body table top 10 which is horizontally arranged, wherein a columnar internal expansion die 8 is arranged at the top of the machine body table top 10, and two external clamping dies 4 matched with the internal expansion die 8 in shape are arranged on two sides of the internal expansion die 8; the outer side surface of the inner tensioning mold 8, which is close to the outer clamping mold 4, is provided with a circle of protrusions 11 along the horizontal direction, the side wall of the outer clamping mold 4, which is close to the inner tensioning mold 8, is provided with a circle of recesses 12 along the horizontal direction, and the outer side of the outer clamping mold 4 is provided with two opposite clamping cylinders 2. The inner tensioning mold 8 is nested between the machine body table top 10 and the outer clamping mold 4, the cross section of the inner tensioning mold 8 is annularly and equally divided into a plurality of blocks, a through hole 1001 is formed in the machine body table top 10, a tensioning oil cylinder 7 is arranged below the machine body table top 10, a connecting screw rod 5 is fixed at the output end of the tensioning oil cylinder 7, and the connecting screw rod 5 penetrates through the through hole 1001 and extends to the upper part of the machine body table top 10; the middle part of the inner tensioning die 8 is provided with a containing hole for the connecting screw rod 5 to pass through, and the outer side surface of the connecting screw rod 5 is connected with a conical wedge block 6; a reset tension spring 9 is arranged on the outer side of the inner tensioning mold 8; the outer side surface of the outer clamping mold 4 is connected with two sliding blocks 3 matched with the outer shape of the outer clamping mold 4, the telescopic end of the clamping oil cylinder 2 is fixed with a linkage block 13, a bolt is arranged to connect the linkage block 13 and the sliding blocks 3, and the inner tensioning mold 8 and the outer clamping mold 4 are coaxially arranged; the inner tensioning mold 8 consists of an upper mold block 801 and a lower mold block 802, and the bulge 11 is arranged on the outer side surface of the upper mold block 801; lower module 802 and fuselage mesa 10 go through to have and are circular annular inserting groove 14, are provided with butt frame 15 and peg graft in inserting groove 14, and butt frame 15's bottom is located fuselage mesa 10 below, and butt frame 15's below is provided with the sharp driver 16 that control butt frame 15 reciprocated.
The working process is as follows:
1. the sliding block 3 and the outer clamping mold 4 are far away from the inner tensioning mold 8 by using the clamping oil cylinder 2, the port of the steel pipe 1 is placed between the outer clamping mold 4 and the inner tensioning mold 8, and the steel pipe 1 is embedded in the insertion groove 14;
2. the straight line driver 16 is used for driving the abutting frame 15 to move up and down, so that the height of the protruding rib required to be formed on the steel pipe 1 is adjusted, and after the height is adjusted, the clamping oil cylinder 2 is used for enabling the sliding block 3 and the outer clamping die 4 to be close to the inner tensioning die 8, so that the steel pipe 1 is clamped;
3. the connecting screw rod 5 and the conical wedge block 6 are driven to move by the tensioning oil cylinder 7, when the conical wedge block 6 moves downwards, a radial drive is provided for the inner tensioning die 8, the bulge 11 on the outer side of the inner tensioning die 8 extends out in the radial direction, and the depression 12 on the outer side of the outer clamping die 4 is clamped, so that a circle of protruding ribs are formed on the steel pipe 1 in an extrusion mode, and the upper and lower stroke points of the tensioning oil cylinder 7 can be set to prevent the inner tensioning die 8 from excessively extending in the radial direction to cause die fracture or extrusion breakage of the pipe orifice of the steel pipe 1;
4. a reset tension spring 9 is nested on the outer side surface of the inner tensioning mold 8 along the horizontal plane, and when the conical wedge block 6 moves upwards, the inner tensioning mold 8 can be reset to an initial state under the action of the reset tension spring 9;
5. the sliding block 3 and the outer clamping mold 4 are far away from the inner tensioning mold 8 by using the clamping oil cylinder 2, the metal pipe is rotated by a certain angle, the sliding block 3 and the outer clamping mold 4 are close to the inner tensioning mold 8 by using the clamping oil cylinder 2, and the processes 3 and 4 are repeated until qualified protruding ribs are obtained;
6. and the sliding block 3 and the outer clamping mold 4 are far away from the inner tensioning mold 8 by using the clamping oil cylinder 2, and the metal pipe is taken out.
According to the third embodiment of fig. 5 and 6: a steel pipe end beading forming machine comprises a machine body table top 10 which is horizontally arranged, wherein a columnar internal expansion die 8 is arranged at the top of the machine body table top 10, and two external clamping dies 4 matched with the internal expansion die 8 in shape are arranged on two sides of the internal expansion die 8; the outer side surface of the inner tensioning mold 8, which is close to the outer clamping mold 4, is provided with a circle of protrusions 11 along the horizontal direction, the side wall of the outer clamping mold 4, which is close to the inner tensioning mold 8, is provided with a circle of recesses 12 along the horizontal direction, and the outer side of the outer clamping mold 4 is provided with two opposite clamping cylinders 2. The inner tensioning mold 8 is nested between the machine body table top 10 and the outer clamping mold 4, the cross section of the inner tensioning mold 8 is annularly and equally divided into a plurality of blocks, a through hole 1001 is formed in the machine body table top 10, a tensioning oil cylinder 7 is arranged below the machine body table top 10, a connecting screw rod 5 is fixed at the output end of the tensioning oil cylinder 7, and the connecting screw rod 5 penetrates through the through hole 1001 and extends to the upper part of the machine body table top 10; the middle part of the inner tensioning die 8 is provided with a containing hole for the connecting screw rod 5 to pass through, and the outer side surface of the connecting screw rod 5 is connected with a conical wedge block 6; a reset tension spring 9 is arranged on the outer side of the inner tensioning mold 8; the outer side surface of the outer clamping mold 4 is connected with two sliding blocks 3 matched with the outer shape of the outer clamping mold 4, the telescopic end of the clamping oil cylinder 2 is fixed with a linkage block 13, a bolt is arranged to connect the linkage block 13 and the sliding blocks 3, and the inner tensioning mold 8 and the outer clamping mold 4 are coaxially arranged; the inner tensioning mold 8 consists of an upper mold block 801 and a lower mold block 802, and the bulge 11 is arranged on the outer side surface of the upper mold block 801; lower module 802 and fuselage mesa 10 go through to have and are circular annular inserting groove 14, are provided with butt frame 15 and peg graft in inserting groove 14, and butt frame 15's bottom is located fuselage mesa 10 below, and butt frame 15's below is provided with the sharp driver 16 that control butt frame 15 reciprocated. The outer side of the upper module 801 is sleeved with a plurality of expanding rings 17, the cross sections of the expanding rings 17 are equally divided into a plurality of annular parts, the upper module 801 is detachably connected with the adjacent expanding rings 17, the two adjacent expanding rings 17 are detachably connected, and the outer side surface of each expanding ring 17 is provided with a circle of protrusions 11 coaxial with the upper module 801; the inner side of the outer clamping mold 4 is sleeved with a plurality of reducing rings 18, the outer clamping mold 4 is detachably connected with the adjacent reducing rings 18, and the two adjacent reducing rings 18 are detachably connected.
The working process is as follows:
1. the sliding block 3 and the outer clamping mold 4 are far away from the inner tensioning mold 8 by using the clamping oil cylinder 2, and the expanding rings 17 are sleeved outside the upper module 801 aiming at the steel pipe 1 with larger inner diameter, so that the upper module 801 and the adjacent expanding rings 17 are connected, and the two adjacent expanding rings 17 are connected; correspondingly sleeving a reducing ring 18 on the inner side of the outer clamping mold 4, connecting the outer clamping mold 4 with the adjacent reducing rings 18, and connecting the two adjacent reducing rings 18 to ensure that the outer diameter of the expanding ring 17 is matched with the inner diameter of the reducing ring 18;
2. placing the port of the steel pipe 1 between the expanding ring 17 and the reducing ring 18, and then enabling the sliding block 3 and the outer clamping mould 4 to be close to the inner tensioning mould 8 by using the clamping oil cylinder 2 to clamp the steel pipe 1;
3. the connecting screw rod 5 and the conical wedge block 6 are driven to move by the tensioning oil cylinder 7, when the conical wedge block 6 moves downwards, a radial drive is provided for the inner tensioning mold 8 and the diameter expanding ring 17, the bulge 11 on the outer side of the diameter expanding ring 17 extends out in the radial direction, and the depression 12 on the outer side of the diameter reducing ring 18 is clamped, so that a circle of protruding ribs are formed on the steel pipe 1 in an extrusion mode, and the upper stroke point and the lower stroke point of the tensioning oil cylinder 7 can be set to prevent the inner tensioning mold 8 from excessively extending in the radial direction to cause mold fracture or extrusion breakage of the pipe orifice of the steel pipe;
4. a reset tension spring 9 is embedded in the outer side surface of the lower module 802 of the inner tensioning mold 8 along the horizontal plane, and when the conical wedge block 6 moves upwards, the inner tensioning mold 8 and the expanding ring 17 can be reset to an initial state under the action of the reset tension spring 9;
5. the sliding block 3 and the outer clamping mold 4 are far away from the inner tensioning mold 8 by using the clamping oil cylinder 2, the metal pipe is rotated by a certain angle, the sliding block 3 and the outer clamping mold 4 are close to the inner tensioning mold 8 by using the clamping oil cylinder 2, and the processes 3 and 4 are repeated until qualified protruding ribs are obtained;
6. and the sliding block 3 and the outer clamping mold 4 are far away from the inner tensioning mold 8 by using the clamping oil cylinder 2, and the metal pipe is taken out.
The fourth embodiment according to fig. 7, 8: a steel pipe end beading forming machine comprises a machine body table top 10 which is horizontally arranged, wherein a columnar internal expansion die 8 is arranged at the top of the machine body table top 10, and two external clamping dies 4 matched with the internal expansion die 8 in shape are arranged on two sides of the internal expansion die 8; the outer side surface of the inner tensioning mold 8, which is close to the outer clamping mold 4, is provided with a circle of protrusions 11 along the horizontal direction, the side wall of the outer clamping mold 4, which is close to the inner tensioning mold 8, is provided with a circle of recesses 12 along the horizontal direction, and the outer side of the outer clamping mold 4 is provided with two opposite clamping cylinders 2. The inner tensioning mold 8 is nested between the machine body table top 10 and the outer clamping mold 4, the cross section of the inner tensioning mold 8 is annularly and equally divided into a plurality of blocks, a through hole 1001 is formed in the machine body table top 10, a tensioning oil cylinder 7 is arranged below the machine body table top 10, a connecting screw rod 5 is fixed at the output end of the tensioning oil cylinder 7, and the connecting screw rod 5 penetrates through the through hole 1001 and extends to the upper part of the machine body table top 10; the middle part of the inner tensioning die 8 is provided with a containing hole for the connecting screw rod 5 to pass through, and the outer side surface of the connecting screw rod 5 is connected with a conical wedge block 6; a reset tension spring 9 is arranged on the outer side of the inner tensioning mold 8; the outer side surface of the outer clamping mold 4 is connected with two sliding blocks 3 matched with the outer shape of the outer clamping mold 4, the telescopic end of the clamping oil cylinder 2 is fixed with a linkage block 13, a bolt is arranged to connect the linkage block 13 and the sliding blocks 3, and the inner tensioning mold 8 and the outer clamping mold 4 are coaxially arranged; the inner tensioning mold 8 consists of an upper mold block 801 and a lower mold block 802, and the bulge 11 is arranged on the outer side surface of the upper mold block 801; a circular insertion groove 14 penetrates through the lower module 802 and the machine body table board 10, an abutting frame 15 is inserted into the insertion groove 14, the bottom end of the abutting frame 15 is positioned below the machine body table board 10, and a linear driver 16 for controlling the abutting frame 15 to move up and down is arranged below the abutting frame 15; the outer side of the upper module 801 is sleeved with a plurality of expanding rings 17, the cross sections of the expanding rings 17 are equally divided into a plurality of annular parts, the upper module 801 is detachably connected with the adjacent expanding rings 17, the two adjacent expanding rings 17 are detachably connected, and the outer side surface of each expanding ring 17 is provided with a circle of protrusions 11 coaxial with the upper module 801; the inner side of the outer clamping mold 4 is sleeved with a plurality of reducing rings 18, the outer clamping mold 4 is detachably connected with the adjacent reducing rings 18, and the two adjacent reducing rings 18 are detachably connected. The lower module 802 and the machine body table top 10 are provided with a plurality of annular insertion grooves 14, and the insertion grooves 14 are arranged below the upper module 801 and the expanding ring 17 for placing the steel pipe 1.
The working process is as follows:
1. the sliding block 3 and the outer clamping mold 4 are far away from the inner tensioning mold 8 by using the clamping oil cylinder 2, and the expanding rings 17 are sleeved outside the upper module 801 aiming at the steel pipe 1 with larger inner diameter, so that the upper module 801 and the adjacent expanding rings 17 are connected, and the two adjacent expanding rings 17 are connected; correspondingly sleeving a reducing ring 18 on the inner side of the outer clamping mold 4, connecting the outer clamping mold 4 with the adjacent reducing rings 18, and connecting the two adjacent reducing rings 18 to ensure that the outer diameter of the expanding ring 17 is matched with the inner diameter of the reducing ring 18;
2. placing the port of the steel pipe 1 between an expanding ring 17 and a reducing ring 18, embedding the steel pipe 1 in the insertion groove 14, driving the abutting frame 15 to move up and down by using a linear driver 16, further adjusting the height of the protruding rib required to be formed on the steel pipe 1, and after the adjustment is finished, enabling the sliding block 3 and the outer clamping mold 4 to be close to the inner tensioning mold 8 by using the clamping oil cylinder 2, so as to clamp the steel pipe 1;
3. the connecting screw rod 5 and the conical wedge block 6 are driven to move by the tensioning oil cylinder 7, when the conical wedge block 6 moves downwards, a radial drive is provided for the inner tensioning mold 8 and the diameter expanding ring 17, the bulge 11 on the outer side of the diameter expanding ring 17 extends out in the radial direction, and the depression 12 on the outer side of the diameter reducing ring 18 is clamped, so that a circle of protruding ribs are formed on the steel pipe 1 in an extrusion mode, and the upper stroke point and the lower stroke point of the tensioning oil cylinder 7 can be set to prevent the inner tensioning mold 8 from excessively extending in the radial direction to cause mold fracture or extrusion breakage of the pipe orifice of the steel pipe;
4. a reset tension spring 9 is embedded in the outer side surface of the lower module 802 of the inner tensioning mold 8 along the horizontal plane, and when the conical wedge block 6 moves upwards, the inner tensioning mold 8 and the expanding ring 17 can be reset to an initial state under the action of the reset tension spring 9;
5. the sliding block 3 and the outer clamping mold 4 are far away from the inner tensioning mold 8 by using the clamping oil cylinder 2, the metal pipe is rotated by a certain angle, the sliding block 3 and the outer clamping mold 4 are close to the inner tensioning mold 8 by using the clamping oil cylinder 2, and the processes 3 and 4 are repeated until qualified protruding ribs are obtained;
6. and the sliding block 3 and the outer clamping mold 4 are far away from the inner tensioning mold 8 by using the clamping oil cylinder 2, and the metal pipe is taken out.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (10)
1. The utility model provides a steel pipe end beading make-up machine, includes fuselage mesa (10) of level setting, its characterized in that: the top of the machine body table board (10) is provided with a columnar inner tensioning mold (8), and two outer clamping molds (4) matched with the inner tensioning mold (8) in shape are arranged on two sides of the inner tensioning mold (8); the outer clamping device is characterized in that a circle of protrusions (11) are arranged on the outer side surface, close to the outer clamping die (4), of the inner tensioning die (8) in the horizontal direction, a circle of recesses (12) are arranged on the side wall, close to the inner tensioning die (8), of the outer clamping die (4) in the horizontal direction, and two opposite clamping oil cylinders (2) are arranged on the outer side of the outer clamping die (4).
2. The steel pipe end beading forming machine according to claim 1, wherein: the inner expansion die (8) is nested in the middle of the machine body table board (10) and the outer clamping die (4), the cross section of the inner expansion die (8) is annularly divided into a plurality of blocks, a through hole (1001) is formed in the machine body table board (10), a tensioning oil cylinder (7) is arranged below the machine body table board (10), a connecting screw rod (5) is fixed at the output end of the tensioning oil cylinder (7), and the connecting screw rod (5) penetrates through the through hole (1001) and extends to the position above the machine body table board (10).
3. The steel pipe end beading forming machine according to claim 2, wherein: the middle part of the internal expansion die (8) is provided with an accommodating hole for the connection screw rod (5) to pass through, and the outer side surface of the connection screw rod (5) is connected with a conical wedge block (6).
4. The steel pipe end beading forming machine according to claim 2, wherein: and a reset tension spring (9) is arranged on the outer side of the internal expansion die (8).
5. The steel pipe end beading forming machine according to claim 1, wherein: the outer side surface of the outer clamping die (4) is connected with two sliding blocks (3) matched with the appearance of the outer clamping die (4), a linkage block (13) is fixed at the telescopic end of the clamping oil cylinder (2), and a bolt is arranged for connecting the linkage block (13) with the sliding blocks (3).
6. The steel pipe end beading forming machine according to claim 1, wherein: the internal expansion die (8) is composed of an upper die block (801) and a lower die block (802), and the protrusions (11) are arranged on the outer side face of the upper die block (801).
7. The steel pipe end beading forming machine according to claim 6, wherein: lower module (802) with run through on fuselage mesa (10) and be annular inserting groove (14), be provided with butt frame (15) peg graft in inserting groove (14) in, just the bottom of butt frame (15) is located fuselage mesa (10) below, the below of butt frame (15) is provided with control straight line driver (16) that butt frame (15) reciprocated.
8. The steel pipe end beading forming machine according to claim 7, wherein: the outer side of the upper module (801) is sleeved with a plurality of expanding rings (17), the cross sections of the expanding rings (17) are annularly and equally divided into a plurality of blocks, the upper module (801) is detachably connected with the adjacent expanding rings (17), two adjacent expanding rings (17) are detachably connected, and the outer side surface of each expanding ring (17) is provided with a circle of protrusions (11) coaxial with the upper module (801); the inner side of the outer clamping mold (4) is sleeved with a plurality of reducing rings (18), the outer clamping mold (4) is detachably connected with the adjacent reducing rings (18), and the two adjacent reducing rings (18) are detachably connected.
9. The steel pipe end beading forming machine according to claim 8, wherein: the lower module (802) and the machine body table board (10) are provided with a plurality of annular insertion grooves (14), and the insertion grooves (14) are arranged below the upper module (801) and the expanding ring (17) for placing steel pipes.
10. The steel pipe end beading forming machine according to claim 1, wherein: the inner expansion die (8) and the outer clamping die (4) are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110372293.6A CN112935041A (en) | 2021-04-07 | 2021-04-07 | Steel pipe end reinforcing bar forming machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110372293.6A CN112935041A (en) | 2021-04-07 | 2021-04-07 | Steel pipe end reinforcing bar forming machine |
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| CN112935041A true CN112935041A (en) | 2021-06-11 |
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| CN202110372293.6A Pending CN112935041A (en) | 2021-04-07 | 2021-04-07 | Steel pipe end reinforcing bar forming machine |
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