CN115990633A - Forming method of spiral pipe space bent pipe - Google Patents
Forming method of spiral pipe space bent pipe Download PDFInfo
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- CN115990633A CN115990633A CN202211646962.5A CN202211646962A CN115990633A CN 115990633 A CN115990633 A CN 115990633A CN 202211646962 A CN202211646962 A CN 202211646962A CN 115990633 A CN115990633 A CN 115990633A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The invention relates to a forming method of a spiral pipe space bent pipe, which comprises the following steps: fixing the end section of the spiral pipe which is bent by the spiral section on a forming die, wherein the swing arm is at a zero position at the moment, and the counterweight cylinder acts to balance the weight of the lifting arm; the servo cylinder pushes the spherical pressing die to press the end section of the spiral pipe on the forming die, then the swing arm starts to rotate, the spherical pressing die moves up and down along with the shape of the space forming groove or the plane forming groove of the forming die, and meanwhile, the spherical pressing die also moves along with the space forming groove or the plane forming groove to change angles; the rotation is stopped after the proper over-bending angle, and the space bending or plane bending of the end section is completed. The method for forming the spiral pipe space bent pipe provided by the invention not only can finish the space bent pipe of the spiral pipe, but also is convenient to operate and flexible to adjust, and can ensure the product performance, the outer diameter wall thickness size, the parallelism with the central axis of the spiral section, the dimensional precision and the shape position precision of the deformation section and the surface quality.
Description
Technical Field
The invention relates to a forming method of a bent pipe, in particular to a forming method of a spiral pipe space bent pipe.
Background
Along with the development of nuclear power technology, miniaturization, multiple purposes and modularization are developed, so that the maximum heat exchange area and heat exchange effect are realized in a limited evaporator space, meanwhile, the manufacturing and the assembly are convenient, and the space bending of the spiral tube also presents various forms according to different design concepts. Based on the requirements of manufacture and assembly, the dimensional accuracy and shape position accuracy of the space bend are very high, and the surface quality is very high. The conventional pipe bender cannot realize bending of a spiral pipe in a combined form of plane bending and space bending, such as a push bending forming method and a mechanism of a space spiral pipe with a straight section disclosed in Chinese patent CN104923599A, and the mechanism can enable the pipe bender to produce the spiral pipes with different spiral diameters and spiral lead angles, namely, the pipe bender can only be used for producing the spiral pipe and cannot complete the production of the space bent pipe, so that the problem to be solved is how to realize the forming of the combined form of the space bending.
Disclosure of Invention
In order to solve the problems, the invention provides a method for forming a spiral pipe space bent pipe, which can finish complex space bent pipe, and the specific technical scheme is as follows:
a forming method of a spiral pipe space bent pipe comprises the following steps: fixing the end section of the spiral pipe which is bent by the spiral section on a forming die, wherein the swing arm is at a zero position at the moment, and the counterweight cylinder acts to balance the weight of the lifting arm; the servo cylinder pushes the spherical pressing die to press the end section of the spiral pipe on the forming die, then the swing arm starts to rotate, the spherical pressing die moves up and down along with the shape of the space forming groove or the plane forming groove of the forming die, and meanwhile, the spherical pressing die also moves along with the space forming groove or the plane forming groove to change angles; the rotation is stopped after the proper over-bending angle, and the space bending or plane bending of the end section is completed.
Preferably, after the space forming groove finishes space bending, the space forming groove is replaced by a plane forming groove, a section of straight pipe is translated firstly, the first 90-degree bend is bent, a section of straight pipe is translated, the second 90-degree bend is bent, and the final straight section is parallel to the cylindrical surface of the spiral section.
Preferably, after the plane forming groove finishes plane bending, the plane forming groove is replaced by a space forming groove, the pipe is fixed again, at the moment, the swing arm is in a zero position, and the counterweight cylinder acts to balance the weight of the lifting arm; the follow-up cylinder pushes the spherical pressing die to press the pipe on the forming die, then the swing arm starts to rotate, the spherical pressing die follows the form of the forming groove of the space bending die to lift in a follow-up mode, and meanwhile the spherical pressing die also follows the forming groove to perform angle transformation; and stopping after rotating to a proper bending angle, and completing the spatial bending of the pipe.
Preferably, the forming die comprises a space bending die and a plane bending die; the plane forming groove is arranged on the plane bending die and comprises a plane fixing groove, a plane bending groove and a plane bending groove which are sequentially arranged along the outer circular surface of the plane bending die; the space forming groove is arranged on the space bending die and comprises an auxiliary bending groove, a forming bending groove and a space bending groove which are sequentially arranged along the outer circular surface of the space bending die.
Preferably, the spherical pressing die is provided with an annular pressing groove.
Preferably, the spherical pressing die is connected with a follow-up pressing device through a lifting device, the follow-up pressing device is arranged on a swing arm, and the swing arm is arranged on a rotating device.
Further, the rotating device includes: a rotating frame; the swinging shaft is rotatably arranged on the rotating frame; the swing frame is fixed on the swing shaft and is connected with the swing arm; the speed reducer is connected with the swing shaft; and the motor is connected with the speed reducer.
Further, the follow-up pressing device comprises: the follow-up seat is slidably arranged on the swing arm; and the follow-up cylinder is arranged on the swing arm and is connected with the follow-up seat.
Further, the lifting device includes: the lifting seat is slidably arranged on the follow-up pressing device; the lifting arm is slidably arranged on the lifting seat, and the spherical pressing die is rotatably arranged at the top of the lifting arm; and the counterweight cylinder is fixed on the lifting seat and is connected with the bottom of the lifting arm.
Compared with the prior art, the invention has the following beneficial effects:
the method for forming the spiral pipe space bent pipe provided by the invention not only can finish the space bent pipe of the spiral pipe, but also is convenient to operate and flexible to adjust, and can ensure the product performance, the outer diameter wall thickness size, the parallelism with the central axis of the spiral section, the dimensional precision and the shape position precision of the deformation section and the surface quality.
Drawings
FIG. 1 is a schematic view of a spatial elbow assembly of a spiral pipe;
FIG. 2 is a top view of a spiral pipe space elbow assembly;
FIG. 3 is a schematic view of a space elbow height;
FIG. 4 is an angular schematic view of a spatial bend;
FIG. 5 is a schematic view of the radius of a space curve;
FIG. 6 is a schematic view of a space bending die;
FIG. 7 is a schematic view of a planar bending die;
FIG. 8 is a front view of a flat curved mold;
FIG. 9 is a schematic view of a spiral pipe with a space bend;
FIG. 10 is a schematic view of a first belt with a spatially curved helical tube;
fig. 11 is a schematic view of a second belt with a spatially curved helical tube.
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
The shape characteristic of the spatial elbow of the spiral pipe, and the angle alpha of the spatial elbow; the height h of the space curve; the radius of the circle R' where the spatial bend end point is located.
The spiral pipe which is bent by the spiral section is fixed on a space bending die 4, and the space bending die 4 is matched with a spherical pressing die 7 on a lifting device 3 to be used, and meanwhile, the bending angle of the rotating device 1 and the pressure value of a follow-up cylinder 25 of the follow-up pressing device 2 are controlled to bend the space bending. In addition, a plane bending die 5 is added to be matched with a spherical pressing die 7 to bend a plane bending, so that a new space bending combination form is formed.
The shape characteristic of the spatial bend of the spiral pipe, namely the angle alpha of the spatial bend, namely the angle between the spatial bend starting point and the spatial bend ending point; the height h of the space bend, namely the height of the space bend starting point and the space bend ending point; the radius of the circle R' where the spatial bend end point is located. R is the spiral radius of the spiral segment, R' =r, and the space is bent on the cylindrical surface of the spiral segment; r' > R space is bent outside the cylindrical surface of the spiral section; the R' < R space is bent inside the cylindrical surface of the spiral section.
The space bending die 4 is provided with an auxiliary bending groove 41, a forming bending groove 42 and a space bending groove 43; the space bending groove 43 is matched with the shape of the spiral pipe of the spiral section; the space bending groove 43 is used for realizing bending angle in the pipe bending process, and the bending angle is different due to the influence of the material, performance and bending form of the pipe; the forming curved groove 42 is used for realizing the main form of space curve, including the height h of the space curve, the radius R' of the circle where the end point of the space curve is located, and the angle alpha of the space curve; the space overbending groove 43 is used to realize an overbending angle.
The following cylinder 25 of the following pressing device 2 needs to realize a floating function, and the pressure value of the following cylinder cannot be too large or too small, and the influencing factors include the material quality, the performance and the bending form of the pipe.
The spherical pressing die 7 on the lifting device 3 is matched with a forming die, when the space bending die 4 is used, the lifting arm 32 is lifted in the sliding groove along with the shape of the space forming groove, and the spherical pressing die 7 is subjected to angle change in the spherical bearing 33 along with the shape of the space forming groove.
The plane bending die 5 is provided with a plane fixing groove 51, a plane bending groove 52 and a plane bending groove 53; the plane fixing groove 51 is used for fixing the pipe, the plane bending groove 53 needs to consider a proper bending angle, and a plane bending formed by bending the plane bending die 5 and the spherical pressing die 7 in a matching way is combined with the space bending, so that a new space bending combination form is formed.
Example 1
As shown in fig. 9, the product is a spiral tube with space bends, the head and the tail of the spiral tube are provided with space bends, the middle is a spiral section, the head space bends outside the cylindrical surface of the spiral section, the tail space bends in the cylindrical surface of the spiral section, and the ports of the straight sections of the head and the tail are in opposite directions and are parallel to the cylindrical surface of the spiral section.
As shown in fig. 2, the head section of the spiral pipe which is bent by the spiral section is fixed on a space bending die 4, the space bending die 4 forms R' > R, at this time, the swing arm 10 is in a zero position, the counterweight cylinder 35 acts to balance the weight of the lifting arm 32, the following cylinder 25 acts to push the lifting device 3 to advance, the spherical pressing die 7 presses the pipe, the motor 12 starts to rotate to drive the swing arm 10 to rotate, the lifting arm 32 follows the shape of the space forming groove of the space bending die 4 to lift, and meanwhile, the spherical pressing die 7 also follows the space forming groove to perform angle conversion. Finally, the head is rotated to a proper over-bending angle and then stopped, and the space bending of the head is completed. The tail space bending is basically consistent with the head space bending, the tail section of the spiral pipe which is bent by the completed spiral section is fixed on a space bending die 4, the space bending die 4 forms R' < R, and the rest operation refers to the process of bending the head space bending.
Example two
As shown in fig. 10, the product is a spiral pipe with a space bend, the straight section of the tail part of the spiral pipe is positioned on the outer side, the middle of the spiral pipe is provided with a spiral section, the head part of the spiral pipe is arranged on the cylindrical surface of the spiral section, the tail part of the spiral pipe is in a combined form of the space bend and the plane bend, the space bend is positioned on the cylindrical surface of the spiral section, the straight section is connected with the space bend, then 90-degree plane bend is performed, the straight section is connected with the second 90-degree plane bend, the straight section is parallel to the cylindrical surface of the spiral section, and the ports of the straight section of the head part and the tail part are in the same direction.
As shown in fig. 2, the head section of the spiral pipe which is bent by the spiral section is fixed on the space bending die 4, the space bending die 4 forms R' =r, at this time, the swing arm 10 is at zero position, the counterweight cylinder 35 acts to balance the weight of the lifting arm 32, the following cylinder 25 acts to push the lifting device 3 to advance, the spherical pressing die 7 presses the pipe, the motor 12 starts to rotate to drive the swing arm 10 to rotate, the lifting arm 32 follows the shape of the space forming groove of the space bending die 4 to lift, and meanwhile, the spherical pressing die 7 also follows the space forming groove to perform angle conversion. And finally, rotating to a proper over-bending angle, and stopping, so that the head space is bent. The same operation firstly completes space bending of the tail, then the U-shaped plane bending die 5 is replaced, a section of straight pipe is translated, a first 90-degree bend (considering bending angle) is bent, a section of straight pipe is translated, a second 90-degree bend (considering bending angle) is bent, and the final straight section is parallel to the cylindrical surface of the spiral section.
Example III
As shown in fig. 11, the product is a spiral pipe with a head straight section positioned in the spiral and a space bend, the head of the spiral pipe is in a combined form of a plane U-shaped bend and the space bend, the middle of the spiral pipe is a spiral section, and the head space bend is positioned on the cylindrical surface of the spiral section. The tail part is in a combined form of a space bend and a plane S bend, the space bend is positioned on the cylindrical surface of the spiral section, the S-shaped plane bend is performed after the straight section is connected, and finally the straight section is parallel to the cylindrical surface of the spiral section and is positioned outside the cylindrical surface.
Referring to fig. 2, after one end of the straight tube is kept at a required length, the straight tube is fixed on the U-shaped plane bending die 5, at this time, the swing arm 10 is at zero position, the counterweight cylinder 35 acts to balance the weight of the lifting arm 32, the following cylinder 25 acts to push the lifting device 3 to advance, the spherical pressing die 7 presses the tube, the motor 12 starts to rotate to drive the swing arm 10 to start rotating, the U-shaped bend is bent (considering bending angle), then the space bending die 4 is replaced, the space bending die 4 forms R' =r, the tube is fixed again, at this time, the swing arm 10 is at zero position, the counterweight cylinder 35 acts to balance the weight of the lifting arm 32, the following cylinder 25 acts to push the lifting device 3 to advance, the spherical pressing die 7 presses the tube, the motor 12 starts to rotate to drive the swing arm 10 to start rotating, the lifting arm 32 follows the shape of the space forming groove of the space bending die 4 to lift, and at the same time the spherical pressing die 7 also follows the space forming groove to perform angle conversion. And finally, rotating to a proper over-bending angle, and stopping, so that the head space is bent. The head assembly space is then used to bend the finished tube and a special coiler is used to finish coiling the middle helical section. And then the coiled pipe with the spiral section is retrieved and fixed on a space bending mould 4 of the space bending forming device, wherein the space bending mould 4 forms R' =R, and the process of bending the head space bending is referred to above. And subsequently translating the straight section, replacing the plane bending die 5, operating the U-shaped bending of the reference plane, and finally enabling the straight section to be parallel to the cylindrical surface of the spiral section.
The method adopts a spiral pipe space pipe bending device.
As shown in fig. 1 to 11, a spiral pipe space pipe bending device comprises a frame 11, a forming die and a rotating device 1 which are fixed on the frame 11, a follow-up pressing device 2 which is installed on a swing arm 10 of the rotating device 1 in a sliding manner, a lifting device 3 which is installed on the follow-up pressing device 2 in a sliding manner, and a spherical pressing die 7 which is installed on the lifting device 3 in a rotating manner, wherein the spherical pressing die 7 is arranged opposite to the forming die; the spherical pressing die 7 is provided with an annular pressing groove 71, and the rotating device 1 is provided with a swing arm 10 for swinging left and right; the lifting device 3 is used for lifting along the vertical direction; the follow-up pressing device 2 is used for pressing the pipe to the forming die through the spherical pressing die 7, and the swing arm 10 is used for driving the pipe to bend.
The rotating device 1 is used for controlling the rotating angle; the lifting device 3 can realize up-and-down floating according to the shape of the space bend; the follow-up pressing device 2 can realize left and right floating according to the shape of the space curve; the space bending forming of the pipe is realized by matching the die with multiple shafts.
Specifically, the forming die is fixed at the top of the frame 11, and the forming die includes a space bending die 4 provided with a space forming groove, and the forming die forms a fan shape, and the space forming groove includes a space bending space forming groove or a plane space forming groove, wherein the space complete space forming groove includes an auxiliary bending groove 41, a forming bending groove 42 and a bending passing groove which are sequentially arranged along the outer circular surface of the space bending die 4. The forming die further comprises a plane bending die 5, and a plane forming groove is formed in the plane bending die 5. During forming, a forming die or a plane bending die 5 can be adopted independently, or the plane bending die 5 can be used for bending a pipe by using the forming die. The planar shaping groove includes a planar fixing groove 51, a planar bending groove 52 and a planar overbending groove 53 which are sequentially provided along the outer circumferential surface of the planar bending die 5. The flat fixing groove 51 is used for fixing the pipe, the flat bending groove 52 is used for flat bending forming, and the flat bending groove 53 is used for preventing rebound. The planar curve formed by the planar curve die 5 and the spherical press die 7 are combined with the space curve, so that a new space curve combined form is formed.
The rotating device 1 includes a rotating frame 17, a swing shaft 16, a swing frame 18, a speed reducer 13, and a motor 12. The rotating frame 17 is fixed on the frame 11, the swinging shaft 16 is rotatably connected with the rotating frame 17 through a bearing, the swinging frame 18 is a U-shaped frame, the swinging frame 18 is fixed on the swinging shaft 16 and is movably inserted at the end part of the rotating frame 17, and the swinging arm 10 is fixed on the swinging frame 18. The speed reducer 13 and the motor 12 are both fixed on the frame 11, the motor 12 and the swinging shaft 16 are respectively connected with the speed reducer 13, the speed reducer 13 is a worm gear speed reducer 13, the self-locking function is realized, the position change during pipe bending is prevented, and the quality of the pipe bending is ensured.
The follow-up pressing device 2 comprises a follow-up seat 24 and a follow-up cylinder 25, wherein the follow-up seat 24 is slidably arranged on the swing arm 10 through a follow-up linear guide rail pair, or follow-up guide rails 22 are symmetrically arranged on two sides of the swing arm 10, follow-up rollers 23 are arranged on two sides of the follow-up seat 24, and the follow-up rollers 23 are arranged on the follow-up guide rails 22 in a rolling manner; the follower linear guide pair or follower guide 22 is disposed horizontally. The follower cylinder 25 comprises driving cylinders, wherein the driving cylinders are all fixed at the tail end of the swing arm 10, and a piston rod of each driving cylinder is connected with the follower seat 24 and used for pressing the follower seat 24 to the forming die.
The lifting device 3 comprises a lifting seat 31, lifting arms 32 and a counterweight cylinder 35, wherein the lifting seat 31 is fixed on the follow-up seat 24, the lifting seat 31 is vertically arranged, the lifting seat 31 is provided with a lifting groove 311, the lifting arms 32 are slidably arranged in the lifting groove 311 through a linear guide rail pair, or lifting rollers 37 are symmetrically arranged on two sides of the lifting arms 32, and the lifting rollers 37 are arranged in the lifting groove 311 in a rolling manner. The spherical pressing die 7 is rotatably arranged on the top of the lifting arm 32; the bottom of lift arm 32 is connected with counterweight cylinder 35 through the connecting seat, and counterweight cylinder 35 is fixed on lift seat 31, and with lift arm 32 parallel arrangement, counterweight cylinder 35 is used for balanced lift arm 32's weight, makes lift arm 32 overcome self weight, can freely go up and down, does not influence the return bend.
The top of the lifting arm 32 is provided with a spherical bearing 33, and the spherical pressing die 7 is movably arranged on the spherical bearing 33. The spherical bearing 33 enables the spherical stamper 7 to be rotated at an arbitrary angle.
The shape characteristic of the spatial elbow of the spiral pipe, and the angle alpha of the spatial elbow; the height h of the space curve; the radius of the circle R' where the spatial bend end point is located.
The spiral pipe which is bent by the spiral section is fixed on a space bending die 4, and the space bending die 4 is matched with a spherical pressing die 7 on a lifting device 3 to be used, and meanwhile, the bending angle of the rotating device 1 and the pressure value of a follow-up cylinder 25 of the follow-up pressing device 2 are controlled to bend the space bending. In addition, a plane bending die 5 is added to be matched with a spherical pressing die 7 to bend a plane bending, so that a new space bending combination form is formed.
The shape characteristic of the spatial bend of the spiral pipe, namely the angle alpha of the spatial bend, namely the angle between the spatial bend starting point and the spatial bend ending point; the height h of the space bend, namely the height of the space bend starting point and the space bend ending point; the radius of the circle R' where the spatial bend end point is located. R is the spiral radius of the spiral segment, R' =r, and the space is bent on the cylindrical surface of the spiral segment; r' > R space is bent outside the cylindrical surface of the spiral section; the R' < R space is bent inside the cylindrical surface of the spiral section.
The space bending die 4 is provided with an auxiliary bending groove 41, a forming bending groove 42 and a space bending groove 43; the space bending groove 43 is matched with the shape of the spiral pipe of the spiral section; the space bending groove 43 is used for realizing bending angle in the pipe bending process, and the bending angle is different due to the influence of the material, performance and bending form of the pipe; the forming curved groove 42 is used for realizing the main form of space curve, including the height h of the space curve, the radius R' of the circle where the end point of the space curve is located, and the angle alpha of the space curve; the space overbending groove 43 is used to realize an overbending angle.
The following cylinder 25 of the following pressing device 2 needs to realize a floating function, and the pressure value of the following cylinder cannot be too large or too small, and the influencing factors include the material quality, the performance and the bending form of the pipe.
The spherical pressing die 7 on the lifting device 3 is matched with a forming die, when the space bending die 4 is used, the lifting arm 32 is lifted in the sliding groove along with the shape of the space forming groove, and the spherical pressing die 7 is subjected to angle change in the spherical bearing 33 along with the shape of the space forming groove.
The plane bending die 5 is provided with a plane fixing groove 51, a plane bending groove 52 and a plane bending groove 53; the plane fixing groove 51 is used for fixing the pipe, the plane bending groove 53 needs to consider a proper bending angle, and a plane bending formed by bending the plane bending die 5 and the spherical pressing die 7 in a matching way is combined with the space bending, so that a new space bending combination form is formed.
The technical principle of the present invention is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the invention and should not be taken in any way as limiting the scope of the invention. Other embodiments of the invention will occur to those skilled in the art from consideration of the specification and practice of the invention without the need for inventive faculty, and are within the scope of the claims.
Claims (9)
1. The forming method of the spiral pipe space bent pipe is characterized by comprising the following steps of:
fixing the end section of the spiral pipe which is bent by the spiral section on a forming die, wherein the swing arm (10) is at a zero position, and the weight of the lifting arm (32) is balanced by the counterweight cylinder (35);
the follow-up cylinder (25) pushes the spherical pressing die (7) to press the end section of the spiral pipe on the forming die, then the swing arm (10) starts to rotate, the spherical pressing die (7) follows the shape of the space forming groove or the plane forming groove of the forming die to follow up and go up, and meanwhile, the spherical pressing die (7) also follows the space forming groove or the plane forming groove to carry out angle transformation;
the rotation is stopped after the proper over-bending angle, and the space bending or plane bending of the end section is completed.
2. The method of claim 1, wherein after the space forming groove completes the space bending, the space forming groove is replaced by a plane forming groove, a section of straight pipe is translated first, a first 90-degree bend is formed, a section of straight pipe is translated again, a second 90-degree bend is formed, and the final straight section is parallel to the cylindrical surface of the spiral section.
3. The method for forming the spatial elbow of the spiral pipe according to claim 1, wherein after the planar forming groove finishes planar bending, the spatial forming groove is replaced, the pipe is fixed again, the swing arm (10) is at a zero position, and the counterweight cylinder (35) acts to balance the weight of the lifting arm (32);
the follow-up cylinder (25) pushes the spherical pressing die (7) to press the pipe on the forming die, then the swing arm (10) starts to rotate, the spherical pressing die (7) follows the form follow-up lifting of the forming groove of the space bending die (4), and meanwhile the spherical pressing die (7) also follows the forming groove to perform angle transformation;
and stopping after rotating to a proper bending angle, and completing the spatial bending of the pipe.
4. A method of forming a spatial elbow for a helical pipe according to any one of claims 1 to 3, wherein the forming die comprises a spatial elbow die (4) and a planar elbow die (5);
the plane forming groove is arranged on the plane bending die (5) and comprises a plane fixing groove (51), a plane bending groove (52) and a plane bending groove (53) which are sequentially arranged along the outer circular surface of the plane bending die (5);
the space forming groove is arranged on the space bending die (4) and comprises an auxiliary bending groove (41), a forming bending groove (42) and a space bending groove (43) which are sequentially arranged along the outer circular surface of the space bending die (4).
5. A method of forming a spiral pipe space elbow according to any one of claims 1 to 3, wherein the spherical compression mold (7) is provided with an annular compression groove (71).
6. A method of forming a spatial elbow of a spiral pipe according to any one of claims 1 to 3, characterized in that the spherical compression mould (7) is connected to a follow-up compression device (2) by means of a lifting device (3), the follow-up compression device (2) being mounted on a swing arm (10), the swing arm (10) being mounted on a rotating device (1).
7. A method of forming a helical coil space elbow according to claim 6, wherein the rotating means (1) comprises:
a rotating frame (17);
the swinging shaft (16), the swinging shaft (16) is rotatably installed on the rotating frame (17);
the swinging frame (18), the swinging frame (18) is fixed on the swinging shaft (16) and is connected with the swinging arm (10);
a speed reducer (13), wherein the speed reducer (13) is connected with the swing shaft (16); a kind of electronic device with high-pressure air-conditioning system
And the motor (12), wherein the motor (12) is connected with the speed reducer (13).
8. A method of forming a helical coil space elbow according to claim 6, wherein the follower compaction device (2) comprises:
a follower seat (24), the follower seat (24) being slidably mounted on the swing arm (10); a kind of electronic device with high-pressure air-conditioning system
And the follow-up cylinder (25) is arranged on the swing arm (10) and is connected with the follow-up seat (24).
9. A method of forming a spiral pipe space elbow according to claim 6, wherein the lifting device (3) comprises:
the lifting seat (31) is slidably arranged on the follow-up pressing device (2);
the lifting arm (32), the lifting arm (32) is slidably arranged on the lifting seat (31), and the spherical pressing die (7) is rotatably arranged at the top of the lifting arm (32); a kind of electronic device with high-pressure air-conditioning system
The counterweight cylinder (35), the counterweight cylinder (35) is fixed on the lifting seat (31) and is connected with the bottom of the lifting arm (32).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211646962.5A CN115990633A (en) | 2022-12-21 | 2022-12-21 | Forming method of spiral pipe space bent pipe |
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| CN202211646962.5A CN115990633A (en) | 2022-12-21 | 2022-12-21 | Forming method of spiral pipe space bent pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116475282A (en) * | 2023-06-21 | 2023-07-25 | 江南大学 | Automatic coil winder and operation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116475282A (en) * | 2023-06-21 | 2023-07-25 | 江南大学 | Automatic coil winder and operation method thereof |
| CN116475282B (en) * | 2023-06-21 | 2023-08-18 | 江南大学 | Automatic coil winder and operation method thereof |
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