CN111496032A - Pipe bending forming equipment and bending process - Google Patents
Pipe bending forming equipment and bending process Download PDFInfo
- Publication number
- CN111496032A CN111496032A CN202010438840.1A CN202010438840A CN111496032A CN 111496032 A CN111496032 A CN 111496032A CN 202010438840 A CN202010438840 A CN 202010438840A CN 111496032 A CN111496032 A CN 111496032A
- Authority
- CN
- China
- Prior art keywords
- arc
- bending
- copper pipe
- shaped
- bent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- 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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
-
- 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
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a pipe bending and forming device which comprises a first vertical rotating shaft and a second vertical rotating shaft, wherein the first vertical rotating shaft is connected with the second vertical rotating shaft; the swing arm mechanism further comprises a first swing arm and a second swing arm which are bilaterally symmetrical; one end of the first rocker arm is fixedly connected with the first rotating shaft, and one end of the second rocker arm is fixedly connected with the second rotating shaft; the part to be bent in the middle of the linear copper pipe is just constrained into a semicircular bent pipe under the combined constraint of the first arc-shaped bending constraint groove, the third arc-shaped bending constraint groove and the second arc-shaped bending constraint groove, so that strict constraint is realized, and meanwhile, the third arc-shaped bending constraint groove pushes the part to be bent which is bent into a semicircular arc body outwards along the radial direction, so that the part to be bent which is bent into the semicircular arc body can be separated from the first arc-shaped bending constraint groove and the second arc-shaped bending constraint groove.
Description
Technical Field
The invention belongs to the field of bending forming.
Background
The U-shaped copper pipe is generally formed by bending a straight pipe, and the bent portion of a standard U-shaped pipe is semicircular, so that a bending mechanism capable of strictly bending the bent portion into a semicircular shape is required.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides a pipe bending forming device and a bending process, which can restrain a straight pipe into a U-shaped pipe.
The technical scheme is as follows: in order to achieve the purpose, the pipe bending and forming equipment comprises a first vertical rotating shaft and a second vertical rotating shaft; the swing arm mechanism further comprises a first swing arm and a second swing arm which are bilaterally symmetrical; one end of the first rocker arm is fixedly connected with the first rotating shaft, and one end of the second rocker arm is fixedly connected with the second rotating shaft;
the other end of the first rocker arm is fixedly connected with a horizontal first bending moment cylinder, and the other end of the second rocker arm is fixedly connected with a horizontal second bending moment cylinder; the first bending moment cylinder and the second bending moment cylinder are bilaterally symmetrical; a first straight copper pipe penetrating channel is arranged in the first bending moment cylinder in a penetrating manner along the length direction, and a second straight copper pipe penetrating channel is arranged in the second bending moment cylinder in a penetrating manner along the length direction;
the rotation of the first rotating shaft and the second rotating shaft can enable the axis of the first straight copper pipe passing through the channel to coincide with the axis of the second straight copper pipe passing through the channel.
The bending device further comprises a linear copper pipe to be bent, and under the condition that the axis of the first straight copper pipe penetrating channel is superposed with the axis of the second straight copper pipe penetrating channel, two ends of the linear copper pipe respectively penetrate into the first straight copper pipe penetrating channel and the second straight copper pipe penetrating channel coaxially.
The bending machine further comprises a first arc-shaped guide groove seat and a second arc-shaped guide groove seat which are bilaterally symmetrical, the arc central angles of the first arc-shaped guide groove seat and the second arc-shaped guide groove seat are both 60 degrees, the arc clockwise end of the first arc-shaped guide groove seat is integrally connected with one end of the first bending moment cylinder, and the arc counterclockwise end of the second arc-shaped guide groove seat is integrally connected with one end of the second bending moment cylinder;
a first arc-shaped bending restraining groove with a semicircular section is arranged on the first arc-shaped guide groove seat along the self arc direction, a second arc-shaped bending restraining groove with a semicircular section is arranged on the second arc-shaped guide groove seat along the self arc direction, and the clockwise end of the first arc-shaped bending restraining groove is tangent to the first straight copper pipe passing channel; the counterclockwise end of the second arc-shaped bending restraining groove is tangent to the second straight copper pipe passing channel;
a third arc-shaped guide groove seat is further arranged between the first arc-shaped guide groove seat and the second arc-shaped guide groove seat, the arc central angle of the third arc-shaped guide groove seat is 60 degrees, and a third arc-shaped bending restraining groove with a semicircular section is arranged on the third arc-shaped guide groove seat along the self arc direction; the end of the hydraulic telescopic rod is fixedly connected with the middle part of the third arc-shaped guide groove seat, and the hydraulic telescopic rod extends along the radial direction of the third arc-shaped guide groove seat;
when the axis of the first straight copper pipe penetrating through the channel coincides with the axis of the second straight copper pipe penetrating through the channel, the axis of the hydraulic telescopic rod is vertical to the axis of the first straight copper pipe penetrating through the channel/the axis of the second straight copper pipe penetrating through the channel;
on the basis that the axis of the first straight copper pipe penetrating through the channel coincides with the axis of the second straight copper pipe penetrating through the channel, after the first rotating shaft rotates 90 degrees clockwise and the second rotating shaft rotates 90 degrees anticlockwise, the combined structure formed by the first arc-shaped guide groove seat, the third arc-shaped guide groove seat and the second arc-shaped guide groove seat is a semicircular body, and the first straight copper pipe penetrates through the channel, the first arc-shaped bent restraining groove, the third arc-shaped bent restraining groove, the second arc-shaped bent restraining groove and the second straight copper pipe penetrates through the channel to be sequentially communicated in a tangent mode to form a U-shaped restraining channel.
The bending mechanism comprises a bending mechanism platform, a first support and a second support, wherein the bending mechanism platform is provided with the first support and the second support respectively; the first rotating shaft support and the second rotating shaft support are respectively and rotatably provided with the first rotating shaft and the second rotating shaft through bearings.
Furthermore, a hydraulic cylinder support is fixedly mounted on the bending mechanism platform, a horizontal hydraulic cylinder is fixed on the hydraulic cylinder support, and the output end of the hydraulic cylinder is the hydraulic telescopic rod.
Further, a first gear and a second gear are respectively and coaxially and integrally connected to the first rotating shaft and the second rotating shaft; the rack is characterized by also comprising a first rack and a second rack which are parallel to each other, wherein the first rack and the second rack are fixedly connected through a connecting body; a plurality of first transmission gear bodies on the first rack are meshed with the first gear, and a plurality of second transmission gear bodies on the second rack are meshed with the second gear; the first gear can be driven by the first rack and the second rack to synchronously displace along the length direction
And the second gear performs constant-speed rotation in the opposite rotation direction.
Further, the tail end of the first rack is integrally connected with a guide rod along the length direction; the bending mechanism platform is also fixedly provided with a plurality of guide hole seats, guide holes are formed in the guide hole seats, and the guide rods penetrate through the guide holes in a sliding manner; a second hydraulic cylinder is fixedly mounted on the guide hole seat through a hydraulic cylinder support, and a second hydraulic telescopic rod of the second hydraulic cylinder is parallel to the length direction of the first rack; the second hydraulic telescopic rod is fixedly connected with the first rack through a plurality of connecting arms.
Further, a bending process of the pipe bending and forming equipment comprises the following steps: the method comprises the following steps:
firstly, the axis of a first straight copper pipe passing channel and the axis of a second straight copper pipe passing channel are in a superposed state in an initial state, and at the moment, a straight copper pipe waiting to be bent simultaneously passes through the first straight copper pipe passing channel and the second straight copper pipe passing channel, so that two ends of the straight copper pipe waiting to be bent respectively pass through the first straight copper pipe passing channel and the second straight copper pipe passing channel coaxially; thus, the linear copper pipe is assembled;
step two, a second hydraulic cylinder is started, so that a first rack and a second rack are driven by a second hydraulic telescopic rod to synchronously displace along the length direction, the first gear slowly rotates clockwise under the meshing transmission, the second gear slowly rotates anticlockwise, so that the first rotating shaft slowly rotates clockwise, the second rotating shaft slowly rotates anticlockwise, so that the first bending moment cylinder slowly rotates clockwise along the axis of the first rotating shaft under the linkage of the first rocker arm and the second rocker arm, the second bending moment cylinder slowly rotates anticlockwise along the axis of the second rotating shaft, so that the part to be bent in the middle of the linear copper pipe forms bending moment under the combined action of the first bending moment cylinder and the second bending moment cylinder, so that the part to be bent in the middle of the linear copper pipe gradually makes free bending deformation, and meanwhile, the first straight line part and the second straight line part at two ends of the linear copper pipe respectively slide in the way that the first copper pipe passes through the channel and the second straight copper pipe passes through the channel in an adaptive manner, the bending of the part to be bent in the middle of the linear copper pipe is free bending due to the bending moment force, and if the part to be bent is not subjected to bending constraint, the finally formed bending structure of the part to be bent is not an expected standard semicircular structure; meanwhile, the hydraulic cylinder slowly extends out through the hydraulic telescopic rod until the third arc-shaped bending constraint groove on the third arc-shaped guide groove seat is pushed to the middle of the part to be bent, the middle of the part to be bent is constrained in the third arc-shaped bending constraint groove, meanwhile, the first arc-shaped guide groove seat can follow the first bending moment cylinder to slowly rotate clockwise along the axis of the first rotating shaft, the second arc-shaped guide groove seat can follow the second bending moment cylinder to slowly rotate anticlockwise along the axis of the second rotating shaft, and therefore the first arc-shaped bending constraint groove is enabled to be bent
The second arc-shaped bending restraining groove gradually restrains the part to be bent from two ends to the middle, so that the two ends of the part to be bent are restrained by the first arc-shaped bending restraining groove and the second arc-shaped bending restraining groove on the basis of free bending;
step three, along with the lapse of time, until the first bending moment tube rotates 90 degrees clockwise slowly along the first rotating shaft axis, the second bending moment tube rotates 90 degrees counterclockwise slowly along the second rotating shaft axis, the combined structure formed by the first arc-shaped guide groove seat, the third arc-shaped guide groove seat and the second arc-shaped guide groove seat is just a semicircle, at this time, the first straight copper tube passes through the channel, the first arc-shaped bending restraining groove, the third arc-shaped bending restraining groove, the second arc-shaped bending restraining groove and the second straight copper tube passes through the channel and is sequentially communicated into a U-shaped restraining channel in a tangent manner; at the moment, the part to be bent in the middle of the linear copper pipe is just constrained into a semicircular bent pipe under the combined constraint of the first arc-shaped bent constraint groove, the third arc-shaped bent constraint groove and the second arc-shaped bent constraint groove; at the moment, the axis of the first straight copper pipe penetrating through the channel and the axis of the second straight copper pipe penetrating through the channel are both in a parallel spacing state; the forming of the U-shaped tube is completed at this time; the first straight line part, the second straight line part and the part to be bent which is bent into a semi-circular arc body form a U-shaped copper pipe;
the hydraulic cylinder continuously extends out through the hydraulic telescopic rod, so that the third arc-shaped guide groove seat is continuously pushed out along the radial direction, at the moment, the third arc-shaped bending restraining groove outwards pushes the part to be bent which is bent into the semi-arc body along the radial direction, further, the part to be bent which is bent into the semi-arc body is pushed out, the part to be bent which is bent into the semi-arc body is separated from the first arc-shaped bending restraining groove and the second arc-shaped bending restraining groove, and at the moment, the first straight line part and the second straight line part can also be separated from the first bending moment cylinder and the second bending moment cylinder; so that the bent U-shaped pipe is separated from the equipment and is ejected outwards under the action of inertia; thus, the bending process of the U-shaped pipe is completed.
Has the advantages that: the part to be bent in the middle of the linear copper pipe is just constrained into a semicircular bent pipe under the combined constraint of the first arc-shaped bending constraint groove, the third arc-shaped bending constraint groove and the second arc-shaped bending constraint groove, so that strict constraint is realized, and meanwhile, the third arc-shaped bending constraint groove pushes the part to be bent which is bent into a semicircular arc body outwards along the radial direction, so that the part to be bent which is bent into the semicircular arc body can be separated from the first arc-shaped bending constraint groove and the second arc-shaped bending constraint groove.
Drawings
FIG. 1 is a first plan view of the device (the straight copper tube has not yet been bent, see "step one")
FIG. 2 is a schematic structural view of the copper pipe shown in FIG. 1 with a straight line hidden;
FIG. 3 is a second top view of the apparatus (see "step two" for a straight copper tube bending process);
FIG. 4 is a third top view of the apparatus (the straight copper tube is completely bent into a U-shaped tube, see "step three" end condition)
FIG. 5 is a perspective view of the state of FIG. 4;
FIG. 6 is a fourth top view of the apparatus (see "step four" for the time the bent U-shaped copper tube is initially ejected);
fig. 7 is a fifth top view of the apparatus (see "step four" for the bent U-shaped copper tube just after it has been fully ejected);
FIG. 8 is a partial schematic view of the structure of FIG. 6;
FIG. 9 is a partial schematic view of the structure of FIG. 4;
fig. 10 is a schematic view of a portion of the right side of fig. 9.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The pipe bending and forming equipment shown in fig. 1 to 10 comprises a first rotating shaft 29 and a second rotating shaft 30 which are vertical; the swing arm further comprises a first swing arm 24 and a second swing arm 3 which are symmetrical left and right; one end of the first rocker arm 24 is fixedly connected with the first rotating shaft 29, and one end of the second rocker arm 3 is fixedly connected with the second rotating shaft;
the other end of the first rocker arm 24 is fixedly connected with a horizontal first bending moment cylinder 2, and the other end of the second rocker arm 3 is fixedly connected with a horizontal second bending moment cylinder 27; the first bending moment cylinder 2 and the second bending moment cylinder 27 are bilaterally symmetrical; a first straight copper pipe passing channel 51 is arranged in the first bending moment cylinder 2 in a penetrating manner along the length direction, and a second straight copper pipe passing channel 52 is arranged in the second bending moment cylinder 27 in a penetrating manner along the length direction;
rotation of the first shaft 29 and the second shaft 30 causes the axis of the first straight copper tube passing through the passage 51 to coincide with the axis of the second straight copper tube passing through the passage 52.
The bending device further comprises a linear copper pipe 31 to be bent, and under the condition that the axis of the first straight copper pipe passing through the channel 51 is superposed with the axis of the second straight copper pipe passing through the channel 52, two ends of the linear copper pipe 31 respectively penetrate into the first straight copper pipe passing through channel 51 and the second straight copper pipe passing through channel 52 coaxially.
The bending machine also comprises a first arc-shaped guide groove seat 10 and a second arc-shaped guide groove seat 7 which are bilaterally symmetrical, the arc central angles of the first arc-shaped guide groove seat 10 and the second arc-shaped guide groove seat 7 are both 60 degrees, the arc clockwise end of the first arc-shaped guide groove seat 10 is integrally connected with one end of the first bending moment cylinder 2, and the arc counterclockwise end of the second arc-shaped guide groove seat 7 is integrally connected with one end of the second bending moment cylinder 27;
a first arc-shaped bending restraining groove 41 with a semicircular section is formed in the first arc-shaped guide groove seat 10 along the self arc direction, a second arc-shaped bending restraining groove 42 with a semicircular section is formed in the second arc-shaped guide groove seat 7 along the self arc direction, and the clockwise needle end of the first arc-shaped bending restraining groove 41 is tangent to the first straight copper pipe passing channel 51; the counterclockwise end of the second arcuately curved restraining groove 42 is tangent to the second straight copper tube passing through passage 52;
a third arc-shaped guide groove seat 9 is further arranged between the first arc-shaped guide groove seat 10 and the second arc-shaped guide groove seat 7, the arc central angle of the third arc-shaped guide groove seat 9 is 60 degrees, and a third arc-shaped bending restraining groove 43 with a semicircular section is arranged on the third arc-shaped guide groove seat 9 along the self arc direction; the telescopic hydraulic telescopic rod 26 is horizontally telescopic, the tail end of the hydraulic telescopic rod 26 is fixedly connected with the middle of the third arc-shaped guide groove seat 9, and the hydraulic telescopic rod 26 extends along the radial direction of the third arc-shaped guide groove seat 9;
when the axis of the first straight copper pipe passing through the channel 51 coincides with the axis of the second straight copper pipe passing through the channel 52, the axis of the hydraulic telescopic rod 26 is vertical to the axis of the first straight copper pipe passing through the channel 51/the second straight copper pipe passing through the channel 52;
on the basis that the axis of the first straight copper pipe passing through the channel 51 is overlapped with the axis of the second straight copper pipe passing through the channel 52, after the first rotating shaft 29 rotates 90 degrees clockwise and the second rotating shaft 30 rotates 90 degrees counterclockwise, the combined structure formed by the first arc-shaped guide groove seat 10, the third arc-shaped guide groove seat 9 and the second arc-shaped guide groove seat 7 is a semicircular body, and the first straight copper pipe passing through the channel 51, the first arc-shaped bent restraining groove 41, the third arc-shaped bent restraining groove 43, the second arc-shaped bent restraining groove 42 and the second straight copper pipe passing through the channel 52 are sequentially communicated into a U-shaped restraining channel in a tangent mode.
The bending mechanism comprises a horizontal bending mechanism platform 25, wherein a first support 21 and a second support 6 are respectively arranged on the bending mechanism platform 25, and a horizontal first rotating shaft support 22 and a horizontal second rotating shaft support 35 are respectively fixedly arranged on the first support 21 and the second support 6; the first rotating shaft 29 and the second rotating shaft 30 are rotatably mounted on the first rotating shaft support 22 and the second rotating shaft support 35 through bearings, respectively.
A hydraulic cylinder support 28 is fixedly installed on the bending mechanism platform 25, a horizontal hydraulic cylinder 1 is fixed on the hydraulic cylinder support 28, and the output end of the hydraulic cylinder 1 is a hydraulic telescopic rod 26.
The first rotating shaft 29 and the second rotating shaft 30 are respectively and coaxially and integrally connected with a first gear 23 and a second gear 5; the device also comprises a first rack 14 and a second rack 4 which are parallel to each other, wherein the first rack 14 and the second rack 4 are fixedly connected through a connecting body 11; a plurality of first transmission gear bodies 20 on the first rack 14 are meshed with a first gear 23, and a plurality of second transmission gear bodies 8 on the second rack 4 are meshed with a second gear 5; when the first rack 14 and the second rack 4 synchronously displace along the length direction, the first gear 23 is driven
And the second gear 5 performs constant-speed rotation in the opposite direction to the rotation direction.
The tail end of the first rack 14 is integrally connected with a guide rod 18 along the length direction; a plurality of guide hole seats 19 are also fixedly arranged on the bending mechanism platform 25, guide holes 16 are arranged on the guide hole seats 19, and guide rods 18 penetrate through the guide holes 16 in a sliding manner; a second hydraulic cylinder 17 is fixedly arranged on the guide hole seat 19 through a hydraulic cylinder bracket 15, and a second hydraulic telescopic rod 13 of the second hydraulic cylinder 17 is parallel to the length direction of the first rack 14; the second hydraulic telescopic rod 13 is fixedly connected with the first rack 14 through a plurality of connecting arms 15.
A bending process of pipe bending forming equipment comprises the following steps:
firstly, in an initial state, the axis of a first straight copper pipe passing through a channel 51 is superposed with the axis of a second straight copper pipe passing through a channel 52, at the moment, a straight copper pipe 31 waiting to be bent simultaneously passes through the first straight copper pipe passing through channel 51 and the second straight copper pipe passing through channel 52, so that two ends of the straight copper pipe 31 waiting to be bent respectively coaxially pass through the first straight copper pipe passing through channel 51 and the second straight copper pipe passing through channel 52; thus, the linear copper pipe is assembled;
step two, the second hydraulic cylinder 17 is started, so that the second hydraulic telescopic rod 13 drives the first rack 14 and the second rack 4 to synchronously displace along the length direction, the first gear 23 slowly rotates clockwise under the meshing transmission, the second gear 5 slowly rotates anticlockwise, the first rotating shaft 29 slowly rotates clockwise, the second rotating shaft 30 slowly rotates anticlockwise, the first bending moment barrel 2 slowly rotates clockwise along the axis of the first rotating shaft 29 under the linkage of the first rocker arm 24 and the second rocker arm 3, the second bending moment barrel 27 slowly rotates anticlockwise along the axis of the second rotating shaft 30, the part 31.2 to be bent in the middle of the linear copper pipe 31 forms bending moment under the combined action of the first bending moment barrel 2 and the second bending moment barrel 27, the part 31.2 to be bent in the middle of the linear copper pipe 31 gradually deforms in a free bending manner, and meanwhile, the first straight line part 31.1 and the second straight line part 31.3 in the two ends of the linear copper pipe 31 are respectively in the first straight line part 31 The pipe passes through the channel 51 and the second straight copper pipe passes through the channel 52 to slide in an adaptive manner, the bending of the part to be bent 31.2 in the middle of the straight copper pipe 31 is free bending due to bending moment force, and if the part to be bent 31.2 is not subjected to bending constraint, the finally formed bending structure of the part to be bent 31.2 is not an expected standard semicircular structure; meanwhile, the hydraulic cylinder 1 slowly extends out through the hydraulic telescopic rod 26 until the third arc-shaped bending restraining groove 43 on the third arc-shaped guide groove seat 9 is jacked to the middle of the part to be bent 31.2, so that the middle of the part to be bent 31.2 is restrained in the third arc-shaped bending restraining groove 43, meanwhile, the first arc-shaped guide groove seat 10 can slowly rotate clockwise along the axis of the first rotating shaft 29 along with the first bending moment cylinder 2, and the second arc-shaped guide groove seat 7 can slowly rotate anticlockwise along the axis of the second rotating shaft 30 along with the second bending moment cylinder 27, so that the first arc-shaped bending restraining groove 41 can slowly rotate anticlockwise
And the second arc bending restraining groove 42 gradually restrains the bending of the part to be bent 31.2 from both ends to the middle, so that both ends of the part to be bent 31.2 are restrained by the first arc bending restraining groove 41 and the second arc bending restraining groove 42 on the basis of free bending;
step three, along with the lapse of time, until the first bending moment tube 2 rotates clockwise 90 degrees slowly along the axis of the first rotating shaft 29, the second bending moment tube 27 rotates counterclockwise 90 degrees slowly along the axis of the second rotating shaft 30, the combined structure formed by the first arc-shaped guide groove seat 10, the third arc-shaped guide groove seat 9 and the second arc-shaped guide groove seat 7 is just a semicircle, and at this time, the first straight copper tube passes through the channel 51, the first arc-shaped bent restraining groove 41, the third arc-shaped bent restraining groove 43, the second arc-shaped bent restraining groove 42 and the second straight copper tube passes through the channel 52 to be sequentially communicated tangentially into a U-shaped restraining channel; at the moment, the part to be bent 31.2 in the middle of the linear copper pipe 31 is just constrained into a semicircular bent pipe under the combined constraint of the first arc-shaped bending constraint groove 41, the third arc-shaped bending constraint groove 43 and the second arc-shaped bending constraint groove 42; at the moment, the axis of the first straight copper pipe passing through the channel 51 and the axis of the second straight copper pipe passing through the channel 52 are in a parallel spacing state; the forming of the U-shaped tube is completed at this time; the first straight line part 31.1, the second straight line part 31.3 and the part to be bent 31.2 which is bent into a semicircular arc body form a U-shaped copper pipe;
step four, the hydraulic cylinder 1 continuously extends out through the hydraulic telescopic rod 26, so that the third arc-shaped guide groove seat 9 is continuously pushed out outwards along the radial direction, at the moment, the third arc-shaped bending restraining groove 43 outwards pushes the part to be bent 31.2 which is bent into the semi-arc body along the radial direction, further, the part to be bent 31.2 which is bent into the semi-arc body is pushed out of the part to be bent 31.2, the part to be bent 31.2 which is bent into the semi-arc body is separated from the first arc-shaped bending restraining groove 41 and the second arc-shaped bending restraining groove 42, and at the moment, the first straight line part 31.1 and the second straight line part 31.3 are also separated from the first bending moment barrel 2 and the second bending moment barrel 27; so that the bent U-shaped pipe is separated from the equipment and is ejected outwards under the action of inertia; thus, the bending process of the U-shaped pipe is completed.
The above is only a preferred embodiment of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (8)
1. The utility model provides a tubular product former that bends which characterized in that: comprises a first rotating shaft (29) and a second rotating shaft (30) which are vertical; the swing arm mechanism further comprises a first swing arm (24) and a second swing arm (3) which are symmetrical left and right; one end of the first rocker arm (24) is fixedly connected with the first rotating shaft (29), and one end of the second rocker arm (3) is fixedly connected with the second rotating shaft;
the other end of the first rocker arm (24) is fixedly connected with a horizontal first bending moment cylinder (2), and the other end of the second rocker arm (3) is fixedly connected with a horizontal second bending moment cylinder (27); the first bending moment cylinder (2) and the second bending moment cylinder (27) are symmetrical left and right; a first straight copper pipe passing channel (51) is arranged in the first bending moment cylinder (2) in a penetrating manner along the length direction, and a second straight copper pipe passing channel (52) is arranged in the second bending moment cylinder (27) in a penetrating manner along the length direction;
the rotation of the first rotating shaft (29) and the second rotating shaft (30) can make the axis of the first straight copper pipe passing through the channel (51) coincide with the axis of the second straight copper pipe passing through the channel (52).
2. The pipe bending and forming device according to claim 1, wherein: the bending device is characterized by further comprising a linear copper pipe (31) to be bent, and under the condition that the axis of the first straight copper pipe penetrating channel (51) is superposed with the axis of the second straight copper pipe penetrating channel (52), two ends of the linear copper pipe (31) penetrate into the first straight copper pipe penetrating channel (51) and the second straight copper pipe penetrating channel (52) coaxially.
3. The pipe bending and forming device according to claim 2, wherein: the bending machine is characterized by further comprising a first arc-shaped guide groove seat (10) and a second arc-shaped guide groove seat (7) which are bilaterally symmetrical, arc central angles of the first arc-shaped guide groove seat (10) and the second arc-shaped guide groove seat (7) are both 60 degrees, an arc clockwise needle end of the first arc-shaped guide groove seat (10) is integrally connected with one end of the first bending moment cylinder (2), and an arc counterclockwise needle end of the second arc-shaped guide groove seat (7) is integrally connected with one end of the second bending moment cylinder (27);
a first arc-shaped bending restraining groove (41) with a semicircular section is formed in the first arc-shaped guide groove seat (10) along the self arc direction, a second arc-shaped bending restraining groove (42) with a semicircular section is formed in the second arc-shaped guide groove seat (7) along the self arc direction, and the clockwise needle end of the first arc-shaped bending restraining groove (41) is tangent to the first straight copper pipe passing channel (51); the counterclockwise end of the second arc-shaped bending restraining groove (42) is tangent to the second straight copper pipe passing channel (52);
a third arc-shaped guide groove seat (9) is further arranged between the first arc-shaped guide groove seat (10) and the second arc-shaped guide groove seat (7), the arc central angle of the third arc-shaped guide groove seat (9) is 60 degrees, and a third arc-shaped bending restraining groove (43) with a semicircular section is arranged on the third arc-shaped guide groove seat (9) along the self arc direction; the telescopic hydraulic telescopic rod is characterized by further comprising a horizontal hydraulic telescopic rod (26) capable of doing telescopic motion, the tail end of the hydraulic telescopic rod (26) is fixedly connected with the middle of the third arc-shaped guide groove seat (9), and the hydraulic telescopic rod (26) extends along the radial direction of the third arc-shaped guide groove seat (9);
when the axis of the first straight copper pipe passing through the channel (51) coincides with the axis of the second straight copper pipe passing through the channel (52), the axis of the hydraulic telescopic rod (26) is vertical to the axis of the first straight copper pipe passing through the channel (51)/the second straight copper pipe passing through the channel (52);
on the basis that the axis of the first straight copper pipe penetrating through the channel (51) is coincided with the axis of the second straight copper pipe penetrating through the channel (52), after the first rotating shaft (29) rotates 90 degrees clockwise and the second rotating shaft (30) rotates 90 degrees anticlockwise, a combined structure formed by the first arc-shaped guide groove seat (10), the third arc-shaped guide groove seat (9) and the second arc-shaped guide groove seat (7) is a semicircular body, and the first straight copper pipe penetrates through the channel (51), the first arc-shaped bent restraining groove (41), the third arc-shaped bent restraining groove (43), the second arc-shaped bent restraining groove (42) and the second straight copper pipe penetrates through the channel (52) to be sequentially communicated in a tangent mode to form a U-shaped restraining channel.
4. The pipe bending and forming device according to claim 3, wherein: the bending mechanism comprises a bending mechanism platform (25), a first support (21) and a second support (6) are respectively mounted on the bending mechanism platform (25), and a first rotating shaft support (22) and a second rotating shaft support (35) which are horizontal are respectively fixedly mounted on the first support (21) and the second support (6); the first rotating shaft support (22) and the second rotating shaft support (35) are respectively and rotatably provided with the first rotating shaft (29) and the second rotating shaft (30) through bearings.
5. The pipe bending and forming device according to claim 4, wherein: the bending mechanism is characterized in that a hydraulic cylinder support (28) is fixedly mounted on the bending mechanism platform (25), a horizontal hydraulic cylinder (1) is fixed on the hydraulic cylinder support (28), and the output end of the hydraulic cylinder (1) is the hydraulic telescopic rod (26).
6. The pipe bending and forming device according to claim 5, wherein: the first rotating shaft (29) and the second rotating shaft (30) are respectively and integrally connected with a first gear (23) and a second gear (5) coaxially; the gear rack is characterized by further comprising a first rack (14) and a second rack (4) which are parallel to each other, wherein the first rack (14) and the second rack (4) are fixedly connected through a connecting body (11); a plurality of first transmission gear bodies (20) on the first rack (14) are meshed with the first gear (23), and a plurality of second transmission gear bodies (8) on the second rack (4) are meshed with the second gear (5); when the first rack (14) and the second rack (4) synchronously move along the length direction, the first gear (23) and the second gear (5) are driven to do constant-speed rotation motion with opposite rotation directions.
7. The pipe bending and forming device according to claim 6, wherein: the tail end of the first rack (14) is integrally connected with a guide rod (18) along the length direction; a plurality of guide hole seats (19) are fixedly arranged on the bending mechanism platform (25), guide holes (16) are formed in the guide hole seats (19), and the guide rods (18) penetrate through the guide holes (16) in a sliding manner; a second hydraulic cylinder (17) is fixedly mounted on the guide hole seat (19) through a hydraulic cylinder support (15), and a second hydraulic telescopic rod (13) of the second hydraulic cylinder (17) is parallel to the length direction of the first rack (14); the second hydraulic telescopic rod (13) is fixedly connected with the first rack (14) through a plurality of connecting arms (15).
8. The bending process of the pipe bending and forming equipment according to claim 7, wherein the bending process comprises the following steps: the method comprises the following steps:
firstly, in an initial state, the axis of a first straight copper pipe passing through a channel (51) is superposed with the axis of a second straight copper pipe passing through a channel (52), at the moment, a straight copper pipe (31) waiting to be bent simultaneously passes through the first straight copper pipe passing through channel (51) and the second straight copper pipe passing through channel (52), and two ends of the straight copper pipe (31) waiting to be bent respectively coaxially penetrate into the first straight copper pipe passing through channel (51) and the second straight copper pipe passing through channel (52); thus, the linear copper pipe is assembled;
step two, a second hydraulic cylinder (17) is started, so that a first rack (14) and a second rack (4) are driven by a second hydraulic telescopic rod (13) to synchronously displace along the length direction, a first gear (23) slowly rotates clockwise under meshing transmission, a second gear (5) slowly rotates anticlockwise, a first rotating shaft (29) slowly rotates clockwise, a second rotating shaft (30) slowly rotates anticlockwise, a first bending moment cylinder (2) slowly rotates clockwise along the axis of the first rotating shaft (29) under the linkage of a first rocker arm (24) and a second rocker arm (3), a second bending moment cylinder (27) slowly rotates anticlockwise along the axis of the second rotating shaft (30), and a part (31.2) to be bent in the middle of a linear copper pipe (31) forms bending moment under the combined action of the first bending moment cylinder (2) and the second bending moment cylinder (27), therefore, the part (31.2) to be bent in the middle of the linear copper pipe (31) is gradually subjected to free bending deformation, meanwhile, the first straight line part (31.1) and the second straight line part (31.3) at the two ends of the linear copper pipe (31) respectively slide in the first straight copper pipe passing channel (51) and the second straight copper pipe passing channel (52) in an adaptive manner, the bending generated by bending moment force on the part (31.2) to be bent in the middle of the linear copper pipe (31) is free bending, and if the part (31.2) to be bent is not subjected to bending constraint, the finally formed bending structure of the part (31.2) to be bent is not an expected standard semicircular structure; meanwhile, the hydraulic cylinder (1) slowly extends out through the hydraulic telescopic rod (26) until a third arc-shaped bending restraining groove (43) on a third arc-shaped guide groove seat (9) is jacked to the middle of a part to be bent (31.2), so that the middle of the part to be bent (31.2) is restrained in the third arc-shaped bending restraining groove (43), meanwhile, the first arc-shaped guide groove seat (10) slowly rotates clockwise along the axis of the first rotating shaft (29) along with the first bending moment cylinder (2), the second arc-shaped guide groove seat (7) slowly rotates anticlockwise along the axis of the second rotating shaft (30) along with the second bending moment cylinder (27), and therefore the first arc-shaped bending restraining groove (41) and the second arc-shaped bending restraining groove (42) gradually restrain the part to be bent (31.2) from two ends to the middle in a gradually closing manner, and therefore the two ends of the part to be bent (31.2) are restrained by the first arc-shaped bending restraining groove (41) and the second arc-shaped bending restraining groove (42) on the basis of free bending, and the two ends of the part to be bent (31.2) are restrained The constraint of (2);
thirdly, as time goes on, until the first bending moment cylinder (2) rotates clockwise 90 degrees slowly along the axis of the first rotating shaft (29), and the second bending moment cylinder (27) rotates counterclockwise 90 degrees slowly along the axis of the second rotating shaft (30), the combined structure formed by the first arc-shaped guide groove seat (10), the third arc-shaped guide groove seat (9) and the second arc-shaped guide groove seat (7) is just a semicircle, and at this time, the first straight copper pipe penetrates through the channel (51), the first arc-shaped bending restraining groove (41), the third arc-shaped bending restraining groove (43), the second arc-shaped bending restraining groove (42) and the second straight copper pipe penetrates through the channel (52) to be sequentially communicated tangentially into a U-shaped restraining channel; at the moment, the part (31.2) to be bent in the middle of the linear copper pipe (31) is just restricted into a semicircular bent pipe under the combined restriction of the first arc-shaped bent restriction groove (41), the third arc-shaped bent restriction groove (43) and the second arc-shaped bent restriction groove (42); at the moment, the axis of the first straight copper pipe passing through the channel (51) and the axis of the second straight copper pipe passing through the channel (52) are in a parallel spacing state; the forming of the U-shaped tube is completed at this time; the first straight line part (31.1), the second straight line part (31.3) and the part (31.2) to be bent which is bent into a semicircular arc body form a U-shaped copper pipe;
step four, the hydraulic cylinder (1) continuously extends out through the hydraulic telescopic rod (26), so that the third arc-shaped guide groove seat (9) is continuously pushed out outwards along the radial direction, at the moment, the third arc-shaped bending restraining groove (43) outwards pushes the part (31.2) to be bent which is bent into the semi-arc body along the radial direction, the part (31.2) to be bent which is bent into the semi-arc body is further pushed out, the part (31.2) to be bent which is bent into the semi-arc body is separated from the first arc-shaped bending restraining groove (41) and the second arc-shaped bending restraining groove (42), and at the moment, the first straight line part (31.1) and the second straight line part (31.3) can also be separated from the first bending moment barrel (2) and the second bending moment barrel (27); so that the bent U-shaped pipe is separated from the equipment and is ejected outwards under the action of inertia; thus, the bending process of the U-shaped pipe is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010438840.1A CN111496032A (en) | 2020-05-22 | 2020-05-22 | Pipe bending forming equipment and bending process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010438840.1A CN111496032A (en) | 2020-05-22 | 2020-05-22 | Pipe bending forming equipment and bending process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111496032A true CN111496032A (en) | 2020-08-07 |
Family
ID=71865451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010438840.1A Withdrawn CN111496032A (en) | 2020-05-22 | 2020-05-22 | Pipe bending forming equipment and bending process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111496032A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112317574A (en) * | 2020-11-09 | 2021-02-05 | 苏州集美金属制品有限公司 | Automatic copper pipe bending equipment and using method thereof |
| CN113399511A (en) * | 2021-05-18 | 2021-09-17 | 刘扭群 | Steel bar bending equipment for industrial manufacturing |
| CN113681207A (en) * | 2021-09-07 | 2021-11-23 | 武昌工学院 | Circular ring bending welding robot system and working method |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847764A (en) * | 2011-06-28 | 2013-01-02 | 第一高周波工业株式会社 | Bending processing device for metal tube |
| JP2016078089A (en) * | 2014-10-20 | 2016-05-16 | 有限会社アルミテック | Elbow manufacturing device and manufacturing method |
| CN205869128U (en) * | 2015-11-26 | 2017-01-11 | 重庆工业设备安装集团有限公司 | On --spot bending machine of generating line |
| CN107052111A (en) * | 2017-03-22 | 2017-08-18 | 安徽中鼎金亚汽车管件制造有限公司 | A kind of automobile urea box metal tube bending mould |
| CN107377701A (en) * | 2017-09-25 | 2017-11-24 | 德清四维机械有限公司 | A kind of angle pipe equipment |
| CN207325804U (en) * | 2017-09-23 | 2018-05-08 | 天津美华家具制造有限公司 | A kind of pipe bending mechanism easy to blanking |
| CN207325664U (en) * | 2017-10-17 | 2018-05-08 | 重庆华万伦电器有限公司 | A kind of crooked metal sheet device |
| CN207523022U (en) * | 2017-12-05 | 2018-06-22 | 重庆康普达科技有限公司 | Plain type arc-shaped edges crimping unit |
| CN109013904A (en) * | 2018-09-04 | 2018-12-18 | 烟台泰利汽车模具股份有限公司 | A kind of hollow pipe bending die |
| CN110369570A (en) * | 2019-08-13 | 2019-10-25 | 杭涛 | The bending device and its bending technique of accurate arc tube |
| CN110421028A (en) * | 2019-08-27 | 2019-11-08 | 深圳市亿和精密科技集团有限公司 | A kind of quick bending and molding device and its forming method of multi-angle sheet metal component |
| CN209829945U (en) * | 2019-01-26 | 2019-12-24 | 中交一航局第四工程有限公司 | Electric bending machine capable of displaying bending degree |
| CN209902116U (en) * | 2019-04-23 | 2020-01-07 | 绍兴市银汉管件有限公司 | Copper pipe bender with adjustable bending angle |
-
2020
- 2020-05-22 CN CN202010438840.1A patent/CN111496032A/en not_active Withdrawn
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847764A (en) * | 2011-06-28 | 2013-01-02 | 第一高周波工业株式会社 | Bending processing device for metal tube |
| JP2016078089A (en) * | 2014-10-20 | 2016-05-16 | 有限会社アルミテック | Elbow manufacturing device and manufacturing method |
| CN205869128U (en) * | 2015-11-26 | 2017-01-11 | 重庆工业设备安装集团有限公司 | On --spot bending machine of generating line |
| CN107052111A (en) * | 2017-03-22 | 2017-08-18 | 安徽中鼎金亚汽车管件制造有限公司 | A kind of automobile urea box metal tube bending mould |
| CN207325804U (en) * | 2017-09-23 | 2018-05-08 | 天津美华家具制造有限公司 | A kind of pipe bending mechanism easy to blanking |
| CN107377701A (en) * | 2017-09-25 | 2017-11-24 | 德清四维机械有限公司 | A kind of angle pipe equipment |
| CN207325664U (en) * | 2017-10-17 | 2018-05-08 | 重庆华万伦电器有限公司 | A kind of crooked metal sheet device |
| CN207523022U (en) * | 2017-12-05 | 2018-06-22 | 重庆康普达科技有限公司 | Plain type arc-shaped edges crimping unit |
| CN109013904A (en) * | 2018-09-04 | 2018-12-18 | 烟台泰利汽车模具股份有限公司 | A kind of hollow pipe bending die |
| CN209829945U (en) * | 2019-01-26 | 2019-12-24 | 中交一航局第四工程有限公司 | Electric bending machine capable of displaying bending degree |
| CN209902116U (en) * | 2019-04-23 | 2020-01-07 | 绍兴市银汉管件有限公司 | Copper pipe bender with adjustable bending angle |
| CN110369570A (en) * | 2019-08-13 | 2019-10-25 | 杭涛 | The bending device and its bending technique of accurate arc tube |
| CN110421028A (en) * | 2019-08-27 | 2019-11-08 | 深圳市亿和精密科技集团有限公司 | A kind of quick bending and molding device and its forming method of multi-angle sheet metal component |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112317574A (en) * | 2020-11-09 | 2021-02-05 | 苏州集美金属制品有限公司 | Automatic copper pipe bending equipment and using method thereof |
| CN113399511A (en) * | 2021-05-18 | 2021-09-17 | 刘扭群 | Steel bar bending equipment for industrial manufacturing |
| CN113399511B (en) * | 2021-05-18 | 2023-10-13 | 宁夏同心山泰钢结构有限公司 | Steel bar bending equipment for industrial manufacturing |
| CN113681207A (en) * | 2021-09-07 | 2021-11-23 | 武昌工学院 | Circular ring bending welding robot system and working method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111496032A (en) | Pipe bending forming equipment and bending process | |
| US6134932A (en) | Machine for bending or cambering a profile section, and bending head therefor | |
| US8756971B2 (en) | Bending device | |
| CN111360115B (en) | Multi-degree-of-freedom top bending stretch bending structure with coupling shaft | |
| CN111496031A (en) | U-shaped pipe bending forming mechanism and bending process | |
| CN110369570B (en) | Bending equipment and bending process of precise arc tube | |
| CN117554211A (en) | Basalt pipeline bending performance detection device and method | |
| CN111436262B (en) | Double-planet-carrier type hole pot seedling picking and planting mechanism with large transplanting displacement and design method thereof | |
| CN210586565U (en) | Helical fin coiled pipe bending machine | |
| CN110394386B (en) | Spiral fin coiled pipe bending machine and spiral fin coiled pipe manufacturing method | |
| CN110216175B (en) | Bending device and bending process thereof | |
| CN208643745U (en) | A kind of effective pipe bender of hot-water heating | |
| CN105179630B (en) | A kind of link lever type stepless speed changer of pulse free | |
| CN210231127U (en) | Automatic elbow forming machine | |
| CN110936164A (en) | Novel metal pipe bending machine and pipe bending processing technology thereof | |
| CN204842719U (en) | A interior bloated module device for flaring of radiator pipe fitting | |
| CN203526402U (en) | Handle winding mechanism of automatic acupuncture needle handle winding machine | |
| CN113545739A (en) | Manipulator auxiliary type electronic pyeloscope | |
| CN112620401A (en) | Lead storage battery terminal post shaping device and using method thereof | |
| CN204942453U (en) | A kind of pulseless link lever type stepless speed changer | |
| CN116139389B (en) | Interventional catheter coiling and conveying device based on angle rod shearing and forking unit | |
| CN103920836B (en) | Bagged-spring shaped device | |
| CN117046939B (en) | Manual pipe bending machine | |
| CN221018069U (en) | Automobile exhaust double-material shell shaping mechanism convenient to move | |
| CN212769001U (en) | Ribbon folder feed mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200807 |