CN109277443B - Three-dimensional curvature pipe bender and using method thereof - Google Patents
Three-dimensional curvature pipe bender and using method thereof Download PDFInfo
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- CN109277443B CN109277443B CN201811438974.2A CN201811438974A CN109277443B CN 109277443 B CN109277443 B CN 109277443B CN 201811438974 A CN201811438974 A CN 201811438974A CN 109277443 B CN109277443 B CN 109277443B
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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
- B21D9/00—Bending tubes using mandrels or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
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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
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Abstract
The invention discloses a three-dimensional curvature pipe bender and a using method thereof, and belongs to the technical field of pipe benders. The pipe bending device and the feeding device are both connected to the left side of the rack, and the feeding device comprises a material pushing mechanism and a material ejecting mechanism which move synchronously; the pipe bending device is positioned between the material pushing mechanism and the material ejecting mechanism, and the material pushing mechanism and the material ejecting mechanism are respectively used for controlling two ends of the pipe. The invention can solve the problem of excessive waste of the excess materials of the pipe, has simple and convenient installation work, is beneficial to improving the working efficiency, and can bend the pipe in the X-axis and Z-axis directions simultaneously by using the pipe bending device; in addition, the invention also discloses a using method of the device, which has the advantages of simple operation, high reliability and the like.
Description
Technical Field
The invention belongs to the technical field of pipe bending machines, and particularly relates to a three-dimensional curvature pipe bending machine and a using method thereof.
Background
The pipe bender is generally divided into a hydraulic pipe bender and a numerical control pipe bender, the hydraulic pipe bender is driven by pure hydraulic pressure, and the numerical control pipe bender is added with a PLC control system on the basis of the hydraulic pipe bender, so that digital information control is realized; the numerical control three-dimensional pipe bender mainly comprises a mechanical part, a hydraulic system and a PLC control system, wherein the mechanical part mainly comprises a feeding device, a pipe bending device, a boosting device, a lathe bed, a pipe bending die and the like.
The numerical control pipe bender is widely applied, processed products relate to various metal bent pipes on automobiles, airplanes and trains, various bent pipes of medicine production equipment, various bent pipes used on power generation boiler systems and the like, no matter which industry the numerical control pipe bender is used in, various equipment is developed towards a refinement direction along with the progress of science and technology, the requirements on the quality and the bending precision of the bent pipes are higher, and the requirements on the processing precision of the numerical control pipe bender are higher and higher. The feeding device is used as an important part of the pipe bender and plays an important role in improving the processing precision of the pipe bender; at present, the inner pushing type clamping device is the most commonly used feeding device due to good stability and protection of the appearance of the pipe.
For example: chinese patent application No. 201310659419.3, published as 2/19/2014, discloses an inward-pushing type clamping device for a three-dimensional corner clamping tube in a numerical control tube bending machine, and belongs to the field of numerical control tube bending machines. The clamping device comprises an elastic chuck, a top end fixing sleeve, an outer fixing sleeve, a hydraulic outer cylinder, a bearing, an inner pushing sleeve, a hydraulic inner cylinder, a first hydraulic cavity and a second hydraulic cavity, wherein the top end fixing sleeve, the outer fixing sleeve, the hydraulic outer cylinder, the bearing, the elastic chuck, the inner pushing sleeve, the hydraulic inner cylinder, the first hydraulic cavity and the second hydraulic cavity are all in a rotation symmetrical structure and have a common central axis, and a clamping inner cavity is formed inside the elastic chuck; there are a number of problems, however: the fixing mode needs to exert clamping force on the pipe through the elastic chuck arranged in the pipe to fix the pipe, and the pipe needs to be inserted into the elastic chuck during installation, so that time and labor are wasted, and the working efficiency is low; in addition, because a large part of the required pipe needs to be inserted into the clamping device, the part of the pipe is difficult to bend, and the pipe between the clamping device and the pipe bending device is also difficult to effectively bend, so that the excess material of the pipe is too long, the material is greatly wasted, and the production cost is increased. Moreover, due to the requirement of the production process, the pipe needs to be bent in the directions of the X axis and the Z axis at the same time, and the technical problem is not solved by the scheme.
For another example: the Chinese patent number 201711030761.1, patent document 2018, 2, month 23, discloses a flexible feeding device of a pipe bending machine and the pipe bending machine, and belongs to the field of numerical control pipe bending machines. The device comprises a traverse frame and a flexible transmission mechanism, wherein the traverse frame is arranged on a feeding part through a traverse linear guide rail pair and is connected with a clamping part; the flexible transmission mechanism comprises a nut seat, a floating nut and a transverse screw rod, the nut seat is arranged on the feeding part, the floating nut is arranged in an inner hole of the nut seat through a key, and two sides of the floating nut are respectively provided with a floating guide sleeve pressed through a spring; the transverse screw rod is arranged on the transverse frame, is in transmission connection with the floating nut and is driven by a transverse motor arranged on the transverse frame. This solution still has the drawbacks described above.
Disclosure of Invention
1. Problems to be solved
Aiming at the problems of overlong excess pipe materials, excessive excess material waste, time and labor waste in pipe installation and difficulty in bending in the X-axis direction and the Z-axis direction simultaneously caused by clamping the pipe materials in the clamping device in the prior art, the invention provides a three-dimensional curvature pipe bender; the problem of excessive waste of pipe excess materials can be solved by fixing the two ends of the pipe, the pipe bending device is simple and convenient to install and beneficial to improving the working efficiency, and the used pipe bending device can be used for simultaneously bending in the X-axis direction and the Z-axis direction; in addition, the invention also discloses a using method of the device, which has the advantages of simple operation, convenient use and the like.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A three-dimensional curvature pipe bender comprises a rack, a pipe bending device and a feeding device, wherein the pipe bending device and the feeding device are both connected to the same side of the rack; the pushing mechanism is used for pushing the pipe to move; the pipe bending device is used for bending the pipe in the X-axis direction and the Z-axis direction.
Preferably, the feeding device further comprises a material ejecting mechanism, a connecting plate and a sliding block; the material ejecting mechanism is used for ejecting the pipe until the end part of the pipe is tightly contacted with the material pushing mechanism; when the pipe bending device is installed, the pipe bending device is positioned between the material pushing mechanism and the material ejecting mechanism; the pushing mechanism and the ejecting mechanism are respectively fixed on the same side of the connecting plate; the sliding blocks are multiple and are uniformly arranged on the other side of the connecting plate; a slide rail is arranged on the side surface of the frame; the sliding block is connected with the sliding rail in a sliding manner.
Preferably, the side surface of the connecting plate is provided with a hole structure; the material ejecting mechanism comprises an ejecting bracket, and a through hole is formed in the side surface of the ejecting bracket; the ejection mechanism and the connecting plate are fixed by assembling a bolt penetrating through the through hole and the hole structure; the hole structures are in multiple rows, and the relative positions of the material ejecting mechanism and the connecting plate are adjusted by changing the corresponding relation between the through holes and the hole structures in different rows.
Preferably, the pushing mechanism comprises a pushing bracket, and the pushing bracket is provided with an internal thread hole; one end of the frame is provided with a fixing part; a screw rod is arranged inside the frame; one end of the screw rod is connected with the fixing part, and the other end of the screw rod penetrates through the internal thread hole to be connected with a fixing plate arranged in the middle of the rack.
Preferably, the feeding device further comprises a material ejecting block and a first adjusting handle; one side of the material ejecting block, which is opposite to the pipe bending device, is hinged with a supporting plate, and the other side is provided with a lock rod; the ejection support is provided with a locking part; the locking bar is connected with the locking part in a penetrating way; the first adjusting handle is used for adjusting the clamping force of the locking part on the locking rod; and a material pushing block is arranged on one side of the material pushing bracket, which is opposite to the pipe bending device.
Preferably, the device further comprises an auxiliary device, wherein the auxiliary device comprises a supporting seat, a vertical rod, an upper auxiliary rod and a lower auxiliary rod; the supporting seat is fixed at the top of the rack, and the end part of the supporting seat extends out of the side surface of the rack; the top of the vertical rod is rotatably connected to the end part of the supporting seat, and the bottom of the vertical rod is connected with the upper auxiliary rod and the lower auxiliary rod; go up auxiliary rod and lower auxiliary rod parallel arrangement, last auxiliary rod and lower auxiliary rod be used for centre gripping tubular product.
Preferably, the top of the vertical rod extends out of the supporting seat and then is connected with a cross rod, the supporting seat is provided with a driving device, and the driving device is used for pushing or pulling the other end of the cross rod.
Preferably, the pipe bending device comprises a fixed seat, a pipe passage, a first fixed guide wheel, a first driving part, a second fixed guide wheel, a third fixed guide wheel, a first bending wheel and a second bending wheel; the fixed seat is arranged on the side surface of the frame; the fixed seat comprises a top cover and a bottom cover; the first fixed guide wheel, the pipe channel, the second fixed guide wheel and the third fixed guide wheel are positioned between the top cover and the bottom cover; the first fixed guide wheel and the second fixed guide wheel are positioned on one side of the pipe channel, and the third fixed guide wheel is positioned on the other side of the pipe channel; the first bending wheel is positioned at the outlet of the pipe channel, and the second bending wheel is positioned at one side of the first bending wheel, which is far away from the rack and is deviated to the material ejecting mechanism; the first driving part is used for controlling the horizontal positions of the first bending wheel and the second bending wheel; the second driving part is used for controlling the vertical position of the second bending wheel.
Preferably, the pipe bending device further comprises a bending die holder; the bending die base comprises a top plate and a bottom plate which are mutually connected; one end of the top plate and one end of the bottom plate are hinged with the first fixed guide wheel, the first bending wheel is arranged between the top plate and the bottom plate, and the first driving part controls the horizontal positions of the first bending wheel and the second bending wheel by driving the other ends of the top plate and the bottom plate; the second driving part is arranged on the bending die holder; the second bending wheel is connected to the top of the second driving part.
The use method of the three-dimensional curvature pipe bender is applied to processing a top beam square pipe for a bus, and comprises the following specific steps:
a. one end of the pipe passes through the pipe bending device to be contacted with the material pushing block, and the combined part of the pipe and the material pushing block is sleeved by a sleeve body; adjusting the position of the material ejecting mechanism to enable the material ejecting block to eject the other end of the pipe and enable the supporting plate to support the pipe;
b. the pushing mechanism is driven by the power device to move towards the fixed part, and the pipe and the pushing mechanism synchronously move to enable the pipe to move to a bending position;
c. the power device drives the pushing mechanism to move in the direction far away from the fixed part, and meanwhile, the first driving part pushes the bending die holder to move in the direction far away from the rack, so that the first bending wheel moves to a preset position, a force far away from the rack is applied to the pipe, and the pipe is bent in the direction far away from the rack; the second driving part drives the second bending wheel to move upwards to enable the second bending wheel to move to a preset position, the second bending wheel exerts an upward force on the pipe to enable the pipe to be bent upwards, and meanwhile bending work of the pipe in the X-axis direction and the Z-axis direction is completed;
d. one end of the pipe, which is in contact with the material ejecting block, deviates in the direction away from the rack, and the material ejecting block and the end part of the pipe rotate together until the pipe is not in contact with the material ejecting block.
3. Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the two ends of the pipe are fixed through the material pushing mechanism and the material ejecting mechanism, and compared with the existing internal pushing type clamping device, the excess material of the pipe can be greatly reduced, and the production cost is reduced; moreover, the installation work is simple and convenient, and the work efficiency is improved;
(2) the structure design that the pushing mechanism and the ejecting mechanism are connected through the connecting plate is adopted, so that the uniformity of movement between the pushing mechanism and the ejecting mechanism can be ensured, and the fixing stability of two ends of the pipe can be further ensured; moreover, the supporting plate and the material ejecting block are connected in a hinged mode, so that the pipe can be prevented from being clamped when the bent end part of the pipe is separated from the material ejecting block, and the continuity of a bending process is improved;
(3) the position of the material pushing block can be adjusted according to actual requirements, one end of the pipe passes through the pipe bending device and then contacts with the material pushing block, the position of the material pushing block is adjusted to enable the material pushing block to push the other end of the pipe tightly, and then the material pushing mechanism and the material pushing mechanism drive the pipe to the bending position; the position of the ejector block can be finely adjusted through the relative position of the ejector mechanism and the connecting plate, the position between the ejector block and the ejector mechanism can also be adjusted, the clamping force of the locking part on the locking rod can be reduced by rotating the first adjusting handle, the position relation of the locking rod in the locking part is moved, the relative position between the ejector block and the ejector mechanism is further adjusted, the fine adjustment of the position of the ejector block is realized, the two adjusting modes are matched with each other, and the use requirements of pipes with various lengths can be met;
(4) the pipe bending device adopted by the invention can simultaneously bend the pipe in the X-axis and Z-axis directions through the first bending wheel and the second bending wheel, and can adjust the bending degree of the pipe according to the actual production requirement, thereby meeting the diversified production requirement and having wide application range;
(5) the arrangement of the stop block in the pipe bending device can ensure that the sleeve body automatically falls under the blocking of the stop block when the material pushing block pushes the pipe to move to be close to the pipe bending device, so that the sleeve body is prevented from entering the pipe bending device, the sleeve body is prevented from being clamped into the pipe bending device, and the continuity of bending work is improved;
(6) the core rod is arranged in the pipe passage, the core rod and the core rod are introduced into the pipe during processing, the supporting effect of the core rod is realized during bending, the area of the section of the bending part is not greatly changed, the flow and the strength of the pipe are less influenced after bending, the stress is uniform during bending, and the appearance of a bent workpiece is attractive;
(7) the auxiliary mechanism can control the middle part of the pipe through the upper auxiliary rod and the lower auxiliary rod, so that the phenomenon that the middle part is folded downwards due to overlong pipe to further cause adverse effect on a bending process is prevented, and when the pushing mechanism is close to the pipe, the vertical rod can be rotated to drive the upper auxiliary rod and the lower auxiliary rod to rotate, so that the interference between the auxiliary rod and the pushing mechanism is avoided.
Drawings
FIG. 1 is a schematic view of the overall structure of a three-dimensional curvature tube bender of the present invention;
FIG. 2 is an enlarged view of A of the three dimensional curvature tube bender of the present invention as shown in FIG. 1;
FIG. 3 is a front view of the three dimensional curvature tube bender of the present invention;
FIG. 4 is a schematic structural view of a feeding device according to the present invention;
FIG. 5 is an assembly view of the ejector mechanism and the connecting plate of the present invention;
FIG. 6 is an assembly view of the tube bending device and the frame of the present invention;
FIG. 7 is a schematic structural view of a pipe bending apparatus according to the present invention;
FIG. 8 is an internal structural view of the tube bending apparatus according to the present invention;
FIG. 9 is an internal structural view of a first driving part according to the present invention;
fig. 10 is an internal structural view of the second driving unit in the present invention.
In the figure: 1. a frame; 101. a slide rail; 102. a screw rod; 103. a fixing plate; 104. a fixed part;
2. a pipe bending device; 201. a fixed seat; 202. bending a die holder; 203. a first fixed guide wheel; 204. a first driving section; 2041. a first drive stationary case; 2042. a first drive projecting arm; 2043. a first driving power unit; 2044. a first drive sense block; 2045. a first drive shaft; 2046. a first threaded sleeve; 2047. a first annular sleeve; 205. a second driving section; 2051. a second drive stationary case; 2052. a second drive projecting arm; 2053. a second driving power section; 2054. a second drive sense block; 2055. a second drive shaft; 2056. a second threaded sleeve; 2058. a second annular sleeve; 206. a reinforcing portion; 207. a second fixed guide wheel; 208. a third fixed guide wheel; 209. a first bending wheel; 210. a second bending wheel; 211. a stopper;
3. a feeding device; 301. a material pushing mechanism; 302. a material ejecting mechanism; 3021. a through hole; 303. a connecting plate; 3031. a pore structure; 304. a material pushing block; 305. a material ejection block; 3051. a support plate; 306. a locking portion; 307. a first adjustment handle; 308. a slider; 309. an internally threaded bore;
4. an auxiliary device; 401. a supporting seat; 402. a vertical rod; 403. an upper auxiliary lever; 404. a lower auxiliary bar;
5. a core bar;
6. a second adjustment handle;
7. a first position sensor;
8. a second position sensor;
9. and (4) a core rod.
Detailed Description
The invention is further described with reference to specific embodiments and the accompanying drawings.
Example 1
As shown in fig. 1 and 3, a three-dimensional curvature pipe bender includes a frame 1, the frame 1 is used as a supporting platform, one side of the frame is connected with a pipe bending device 2 and a feeding device 3, the feeding device 3 includes a pushing mechanism 301 and a material ejecting mechanism 302 which move synchronously, the pipe bending device 2 is located between the pushing mechanism 301 and the material ejecting mechanism 302, the pushing mechanism 301 is used for pushing a pipe to move, the material ejecting mechanism 302 is used for pushing the pipe tightly until the end of the pipe is in close contact with the pushing mechanism 301, the function of the material ejecting mechanism 302 can also be realized by other methods, for example, a manual pushing manner is used, the design of the material ejecting mechanism 302 improves the automatic production rate, saves manpower, and is beneficial to the standardization of production; the pushing mechanism 301 comprises a pushing bracket, and a pushing block 304 is arranged on one side of the pushing bracket, which is opposite to the pipe bending device 2; the feeding device 3 further comprises an ejector block 305, the ejector mechanism 302 comprises an ejector bracket, the ejector block 305 is connected to the ejector bracket, and a supporting plate 3051 is hinged to one side of the elbow device 2; in the embodiment, the two ends of the pipe are fixed by the ejector block 305 and the ejector block 304, so that compared with the existing inward pushing type feeding device, the excessive material of the pipe can be greatly reduced, and the production cost is reduced; moreover, the installation work is simple and convenient, and the work efficiency is improved; the supporting plate 3051 is connected with the material ejecting block 305 in a hinged mode, so that the bent end of the pipe can be prevented from being clamped when being separated from the material ejecting block, and the continuity of the bending process is improved.
As shown in fig. 4, the feeding device 3 further includes two connecting plates 303 and a plurality of sliding blocks 308, the two connecting plates 303 are arranged in parallel, the pushing mechanism 301 and the ejecting mechanism 302 are respectively fixed on the same side of the connecting plate 303, and the plurality of sliding blocks 308 are uniformly installed on the other side of the connecting plate 303; the side surface of the frame 1 is provided with a slide rail 101, and the slide block 308 is connected with the slide rail 101 in a sliding manner; the pushing mechanism 301 and the ejecting mechanism 302 are connected through the connecting plate 303, so that the uniformity of movement between the pushing mechanism 301 and the ejecting mechanism 302 can be ensured, and the fixing stability of two ends of the pipe can be further ensured; the surface of the sliding rail 101 is provided with a V-shaped groove, the sliding block 308 is provided with a V-shaped bulge, and the connection between the sliding block 308 and the sliding rail 101 is realized through the assembly of the V-shaped bulge and the V-shaped groove, wherein the sliding blocks 308 on the two connecting plates 303 are arranged in a mirror symmetry manner, so that the V-shaped bulges of the sliding blocks 308 on the two connecting plates 303 are opposite to each other, and the V-shaped grooves on the sliding rail 101 are opposite to each other, thereby ensuring the stability of the feeding device 3 in the sliding process and enabling the appearance of the bent; the slider 308 and the connecting plate 303 are fixed by bolts, so that the feasibility of the connection mode can be realized. The pushing bracket is provided with an internal thread hole 309, one end of the rack 1 is provided with a fixing part 104, a screw rod 102 is arranged inside the rack 1, one end of the screw rod 102 is connected with the fixing part 104, and the other end of the screw rod passes through the internal thread hole 309 to be connected with a fixing plate 103 arranged in the middle of the rack 1; the fixing part 104 is provided with a power part which drives the screw rod 102 to rotate, and the material pushing mechanism 301 and the material ejecting mechanism 302 synchronously and transversely move.
As shown in fig. 5, a hole structure 3031 is arranged on the side surface of the connecting plate 303, the material ejecting mechanism 302 comprises an ejecting bracket, a through hole 3021 is arranged on the side surface of the ejecting bracket, and the fixing of the ejecting mechanism 302 and the connecting plate 303 is realized by assembling a bolt with the hole structure 3031 through the through hole 3021; the hole structures 3031 are arranged in multiple rows, and the relative positions of the material ejecting mechanism 302 and the connecting plate 303 are adjusted by changing the corresponding relation between the through holes 3021 and the hole structures 3031 in different rows. One side of the ejector block 305, which is opposite to the supporting plate 3051, is provided with a locking rod, the locking rod is connected with the locking part 306 in a penetrating manner, the ejector bracket is provided with a first adjusting handle 307, and the first adjusting handle 307 is used for adjusting the clamping force of the locking part 306 on the locking rod. The position of the ejector block 305 in this embodiment can be adjusted according to actual requirements, before bending, one end of the pipe passes through the pipe bending device 2 and then contacts with the ejector block 304, the position of the ejector block 305 is adjusted to enable the ejector block 305 to tightly eject the other end of the pipe, and then the ejector mechanism 301 and the ejector mechanism 302 drive the pipe to a bending position; the position of the ejector block 305 can be roughly adjusted by changing the relative position of the ejector mechanism 302 and the connecting plate 303, the position between the ejector block 305 and the ejector mechanism 302 can also be adjusted, the clamping force of the locking part 306 on the locking rod can be reduced by rotating the first adjusting handle 307, the position relation of the locking rod in the locking part 306 is moved, the relative position between the ejector block 305 and the ejector mechanism 302 is further adjusted, the fine adjustment of the position of the ejector block 305 is realized, the two adjusting modes are matched with each other, and the use requirements of pipes with various lengths can be met.
Example 2
The same as example 1, except that: as shown in fig. 2, the auxiliary device 4 is further included, the auxiliary device 4 includes a supporting seat 401, a vertical rod 402, an upper auxiliary rod 403 and a lower auxiliary rod 404, the supporting seat 401 is fixed on the top of the machine frame 1, and the end part of the supporting seat extends out of the left side of the machine frame 1; the top of the vertical rod 402 is rotatably connected to the end of the support base 401, and the bottom of the vertical rod is connected with the upper auxiliary rod 403 and the lower auxiliary rod 404; the upper auxiliary rod 403 and the lower auxiliary rod 404 are arranged in parallel, and the upper auxiliary rod 403 and the lower auxiliary rod 404 are used for clamping a pipe. The top of the vertical rod 402 extends out of the supporting seat 401 and then is connected with a cross rod, the supporting seat 401 is provided with a driving device, and the driving device is used for pushing or pulling the other end of the cross rod. The auxiliary mechanism in this embodiment can control the middle part of the pipe through the upper auxiliary rod 403 and the lower auxiliary rod 404, so as to prevent the middle part from being folded downwards due to overlong pipe and further generate adverse effects on the bending process, and moreover, when the pushing mechanism 301 is close to the pipe, the vertical rod 402 can be rotated to drive the upper auxiliary rod 403 and the lower auxiliary rod 404 to rotate, so that the interference between the auxiliary rods and the pushing mechanism 301 is avoided.
The bottom of montant 402 is equipped with the bar hole, goes up auxiliary rod 403 and fastens it through the nut behind the bar hole with the tip of lower auxiliary rod 404, and the other end passes through the bearing and is connected with the elastic rolling cover, and this kind of structural design can be adjusted according to the size of tubular product, can satisfy diversified operation requirement, and the surface of tubular product also can be avoided being damaged in the setting of elastic rolling cover.
Example 3
The same as example 1, except that: the pipe bending device 2 comprises a fixed seat 201, a pipe passage, a first fixed guide wheel 203, a first driving part 204, a second driving part 205, a second fixed guide wheel 207, a third fixed guide wheel 208, a first bending wheel 209, a second bending wheel 210 and a stop block 211; the fixed seat 201 is used as a supporting platform of the pipe bending device 2 and is installed on the side surface of the rack 1, and the fixed seat 201 comprises a top cover and a bottom cover; the first fixed guide wheel 203, the pipe passage, the second fixed guide wheel 207, the third fixed guide wheel 208 and the stop 211 are positioned between the top cover and the bottom cover, the first fixed guide wheel 203 and the second fixed guide wheel 207 are positioned on one side of the pipe passage, and the third fixed guide wheel 208 and the stop 211 are positioned on the other side of the pipe passage; the first bending wheel 209 is positioned at the outlet of the pipe passage, and the second bending wheel 210 is positioned at one side of the first bending wheel 209, which is far away from the rack 1 and is deviated to the material ejecting mechanism 302, wherein the first bending wheel 209 is used for bending the pipe in the horizontal direction, and the second bending wheel 210 is used for bending the pipe in the vertical direction; the first driving unit 204 controls the horizontal positions of the first bending wheel 209 and the second bending wheel 210, and the second driving unit 205 controls the vertical position of the second bending wheel 210. In this embodiment, after the pipe passes through the pipe channel, the pipe bending device 2 can simultaneously bend the pipe in the X-axis and Z-axis directions through the first bending wheel 209 and the second bending wheel 210, the first fixed guide wheel 203, the second fixed guide wheel 207 and the third fixed guide wheel 208 are hinged between the top cover and the bottom cover, so that the pipe can be fixed transversely during bending, the side surfaces of the first fixed guide wheel 203, the second fixed guide wheel 207 and the third fixed guide wheel 208 are provided with annular grooves which are coplanar with the pipe channel, the side surface of the stopper 211 is provided with grooves which are coplanar with the pipe channel, so that the pipe can be fixed longitudinally, the pipe and the first bending wheel 209 are prevented from being dislocated from top to bottom, the stability of the pipe is improved, during bending, the pipe passes through the pipe channel, the first fixed guide wheel 203, the second fixed guide wheel 207 and the third fixed guide wheel 208 on the two sides of the pipe guide wheel channel can fix the pipe, first wheel 209 of bending carries out the level with tubular product and bends now, and second wheel 210 of bending carries out vertical bending with tubular product, and this embodiment can be according to actual production demand, can adjust the degree of bending of tubular product through first drive division 204 and second drive division 205, has satisfied diversified production demand, and application scope is wide. In addition, the arrangement of the stop block can ensure that the sleeve body automatically falls under the blocking of the stop block when the material pushing block pushes the pipe to move to be close to the pipe bending device, so that the sleeve body is prevented from entering the pipe bending device, the sleeve body is prevented from being clamped into the pipe bending device, and the continuity of bending work is improved; of course, in order to improve the stability of the installation of the stopper 211, a stopper seat is provided at a side of the stopper 211 away from the tube passage, the stopper 211 is embedded in the stopper seat, and the stopper seat is reinforced by a cylinder provided at a side thereof away from the stopper 211.
A core rod 5 and a core rod 9 are arranged in the pipe channel, one end of the core rod 5 is connected with the core rod 9 through a fastener, the other end of the core rod is fixed on a fixing part 104, a second adjusting handle 6 for adjusting the core rod 9 is installed on the fixing part 104, and the second adjusting handle 6 can finely adjust the position of the core rod 9; the core rod 9 is arranged in the pipe passage, the core rod 9 and the core rod 5 are introduced into the pipe during processing, the supporting effect of the core rod 9 is achieved during bending, the area of the section of the bending part is not changed greatly, the flow and the strength of the pipeline are guaranteed to be influenced less after bending, stress is uniform during bending, and the appearance of a bent workpiece is attractive.
Example 4
The same as example 3, except that: as shown in fig. 6, 7 and 8, the tube bending device 2 further includes a bending die holder 202, the bending die holder 202 includes a top plate and a bottom plate connected to each other, one end of the top plate and one end of the bottom plate are located between the top cover and the bottom cover and hinged to a first fixed guide wheel 203, a first driving portion 204 controls the horizontal positions of a first bending wheel 209 and a second bending wheel 210 by driving the other ends of the top plate and the bottom plate, the first bending wheel 209 is installed between the top plate and the bottom plate, in this embodiment, a support column is disposed at one end of the top plate and one end of the bottom plate far away from the first fixed guide wheel 203, and an end of the first driving portion 204 is hinged to the support column, wherein the first fixed guide wheel 203, the first bending wheel 209 and the support column are arranged in a triangular manner, the connection manner has a compact structure and high reliability, fully utilizes functions of components, and can also reduce the reverse; in the working process, the first driving part 204 can control the horizontal positions of the first bending wheel 209 and the second bending wheel 210 by applying a pushing force or a pulling force to the supporting column; the first driving part 204 is hinged to the top and the bottom of the rack 1 through a fixing column, the end part of the fixing column is hinged to a reinforcing part 206, the reinforcing part 206 is an annular sleeve body, and the outer side of the end part of the annular sleeve body, which extends out of the top and the bottom of the rack 1, is connected with a reinforcing plate; because the first driving portion 204 needs to give the first bending wheel 209 a large thrust to complete the bending work in the horizontal direction, the fixing of the first driving portion 204 needs to be strengthened, otherwise, the damage is easy to occur, and the service life of the device is seriously affected, and the reinforcing portion 206 arranged in the embodiment can transmit the stress transmitted by the first driving portion 204 to the top and the bottom of the frame 1 through the reinforcing plate, so that the fatigue damage of the hinged position between the fixing column and the top and the bottom of the frame 1 is effectively reduced, and the service life of the device is prolonged. The second driving unit 205 is mounted on the bending die holder 202, and the second driving unit 205 supports the second bending wheel 210.
Example 5
The same as example 4, except that: as shown in fig. 9, the first drive portion 204 includes a first drive stationary housing 2041, a first drive projecting arm 2042, a first drive shaft 2045, and a first threaded sleeve 2046; the first driving fixing shell 2041 is hollow and horizontally disposed, the top surface and the bottom surface of the first driving fixing shell 2041 are hinged to the reinforcing portion 206 through fixing columns, the first driving shaft 2045, the first thread bushing 2046 and the first driving extension arm 2042 are all located inside the first driving fixing shell 2041, one end of the first driving extension arm 2042 extends out of the first driving fixing shell 2041 and is hinged to the supporting column, the other end of the first driving extension arm 2042 is fixedly connected to the first thread bushing 2046, the side surface of the first driving shaft 2045 is provided with external threads, the first thread bushing 2046 is sleeved on the first driving shaft 2045, one end of the first driving fixing shell 2041, which is far away from the first driving extension arm 2042, is provided with a first driving power portion 2043, the first driving power portion 2043 is used for driving the first driving shaft 2045 to rotate, wherein a first annular bushing 2047 is further arranged inside the first driving fixing shell 2041, the first annular bushing 2047 is sleeved on the first driving extension arm 2042, and a bolt is arranged on the side surface of the first driving fixing, the bolt passes through the first driving fixing shell 2041 and the first annular sleeve 2047 in sequence and then pushes against a strip-shaped groove formed in the side surface of the first driving extending arm 2042.
During operation, the first driving power portion 2043 drives the first driving shaft 2045 to rotate, and since the bolt is inserted into the strip-shaped groove formed in the side surface of the first driving protruding arm 2042, the first thread sleeve 2046 is transversely moved to drive the first driving protruding arm 2042 to transversely move, so as to control the horizontal positions of the first bending wheel 209 and the second bending wheel 210, wherein the first position sensor 7 is further installed on the outer side of the first driving fixing shell 2041, the first driving sensing block 2044 is installed at the end portion of the first driving protruding arm 2042, the first position sensor 7 is used for detecting the relative movement distance of the first driving sensing block 2044, and by detecting the relative movement distance of the first driving sensing block 2044, the influence of the directional deviation generated by the rotation of the first driving portion 204 around the fixing column on the measurement precision is effectively avoided, and the bending processing precision is improved.
As shown in fig. 10, the second drive section 205 includes a second drive stationary housing 2051, a second drive projecting arm 2052, a second drive shaft 2055, a second threaded sleeve 2056, and a second annular sleeve 2057; the inside of the second driving fixing shell 2051 is a hollow structure, the top surface of the second driving fixing shell 2051 is fixed on a bottom plate of the bending die holder 202, the second driving shaft 2055, a second thread bushing 2056 and a second driving extending arm 2052 are both positioned inside the second driving fixing shell 2051, one end of the second driving extending arm 2052 extends out of the first driving fixing shell 2041 to be connected with the second bending wheel 210, the other end of the second driving extending arm is fixedly connected with the second thread bushing 2056, the side surface of the second driving shaft 2055 is provided with an external thread, the second thread bushing 2056 is sleeved on the second driving shaft 2055, one end of the second driving fixing shell 2051, which is far away from the first driving extending arm 2042, is provided with a second driving power part 2053, the second driving power part 2053 is used for driving the second driving shaft 2055 to rotate, wherein a second ring bushing 2057 is further arranged inside the second driving fixing shell 2051, the second ring bushing 2057 is sleeved on the second driving extending arm 2052, the second driving extending arm 2051 is provided with a bolt, the second driving fixing shell 2051, the bolt is arranged on the side surface of the second driving In the strip-shaped groove.
During operation, second drive power portion 2053 drives second drive shaft 2055 and rotates, because the bolt inserts in the bar groove that second drive cantilever arm 2052 side set up, second thread bush 2056 sideslip, drive second drive cantilever arm 2052 sideslip, and then the vertical position of control second bend wheel 210, wherein, second position sensor 8 is still installed to the outside of the fixed shell 2051 of second drive, second drive response piece 2054 is installed to the tip of second drive cantilever arm 2052, second position sensor 8 is used for detecting the relative displacement distance of second drive response piece 2054.
Traditionally, a hydraulic pipe bending process is generally adopted, the internal stress of a pipe in an arc changing stage and a small bending arc part is changed, and the oil cylinder cannot stretch stably according to data requirements due to the soft characteristic of hydraulic oil, so that the forming consistency of the pipe is influenced. The assembly gap between the first driving protruding arm 2042 and the first driving fixing shell 2041 is 0.5-0.8 mm, and the assembly gap between the second driving protruding arm 2052 and the second driving fixing shell 2051 is 0.5-0.8 mm, so that the machining precision of the pipe bender can be improved by 68% by matching with the structure.
Example 6
The use method of the pipe bending device adopts the pipe bending device in the embodiment 5, and the following is a specific description of bending a top beam square pipe for a bus.
A use method of a pipe bending device comprises the following steps:
a. moving the pipe to a bending position, driving the first driving shaft 2045 to rotate by the first driving power part 2043, transversely moving the first threaded sleeve 2046 to drive the first driving extension arm 2042 to transversely move, moving the first bending wheel 209 and the second bending wheel 210 to a preset horizontal position, and calibrating the positions of the first bending wheel 209 and the second bending wheel 210 by the first position sensor 7;
b. the second driving power part 2053 drives the second driving shaft 2055 to rotate, the second thread sleeve 2056 moves transversely to drive the second driving extending arm 2052 to move transversely, the second bending wheel 210 moves to a preset height position, and the second position sensor 8 corrects and measures the position of the second bending wheel;
c. the first bending wheel 209 exerts a force on the pipe away from the machine frame 1, and the pipe bends towards the direction away from the machine frame 1; the second bending wheel 210 moves to a preset position, and the second bending wheel 210 applies an upward force to the pipe to bend the pipe upwards and push the pipe to move, so that the pipe is bent in the directions of the X axis and the Z axis.
Therefore, the use method of the three-dimensional curvature pipe bender is simple to operate, convenient to use and high in bending precision, and can meet the processing requirements of pipes with different lengths.
Example 7
A method for using the three-dimensional curvature pipe bender in example 3 is described below in detail with respect to bending of a top beam square tube for a bus.
A use method of a three-dimensional curvature pipe bender comprises the following steps:
a. one end of the pipe passes through the pipe bending device 2 to be in contact with the material pushing block 304, and the joint part of the pipe and the material pushing block is sleeved by a sleeve body; adjusting the position of the material ejecting mechanism 302 to make the material ejecting block 305 abut against the other end of the pipe and make the supporting plate 3051 support the pipe; wherein, the specific adjustment operation of liftout mechanism 302 is: the corresponding relation between the through hole 3021 and the hole structures 3031 in different rows is changed, so that the material ejecting block 305 is closest to the end of the pipe, then, the clamping force of the locking part 306 on the locking rod is reduced by rotating the first adjusting handle 307, the position relation of the locking rod in the locking part 306 is moved, the material ejecting block 305 is made to abut against the end of the pipe, and the pipe is supported by the supporting plate 3051.
b. The pushing mechanism 301 is driven by a power device to move towards the fixing portion 104, the pipe and the pushing mechanism 302 move synchronously, the pipe moves to a preset bending position, and the upper auxiliary rod 403 and the lower auxiliary rod 404 clamp the pipe to prevent the pipe from being bent downwards.
c. The power device drives the material pushing mechanism 301 to move in a direction away from the fixing portion 104, meanwhile, the first driving portion 204 pushes the bending die holder 202 to move in a direction away from the rack 1, so that the first bending wheel 209 moves to a preset position, a pushing force for bending the pipe is applied to the pipe, and the pipe is bent in a direction away from the rack 1; the second driving portion 205 drives the second bending wheel 210 to move upwards, so that the second bending wheel 210 moves to a preset position, the second bending wheel 210 exerts an upward force on the pipe, the pipe is bent upwards, and meanwhile, the pipe bending work in the X-axis and Z-axis directions is completed.
d. The end of the pipe in contact with the ejector block 305 is deflected in a direction away from the machine frame 1 and the ejector block 305 rotates together with the end of the pipe until the pipe is no longer in contact with the ejector block 305.
e. When the material pushing block 304 moves to a position close to the pipe bending device 2, the stopper 211 stops the sleeve body, so that the sleeve body naturally falls down, and the bending work of the pipe is completed.
Therefore, the use method of the three-dimensional curvature pipe bender is simple to operate, convenient to use and high in bending precision, and can meet the processing requirements of pipes with different lengths.
The examples described herein are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. The utility model provides a three-dimensional curvature bending machine, includes frame (1), swan neck system (2) and material feeding unit (3), its characterized in that: also comprises an auxiliary device (4); the pipe bending device (2) and the feeding device (3) are connected to the same side of the rack (1), and the feeding device (3) comprises a material pushing mechanism (301); the pushing mechanism (301) is used for pushing the pipe to move; the pipe bending device (2) is used for bending the pipe in the X-axis and Z-axis directions;
the pushing mechanism (301) comprises a pushing support, and the pushing support is provided with an internal threaded hole (309); one end of the frame (1) is provided with a fixing part (104); a screw rod (102) is arranged in the frame (1); one end of the screw rod (102) is connected with the fixing part (104), and the other end of the screw rod passes through the internal thread hole (309) to be connected with the fixing plate (103) arranged in the middle of the rack (1);
the auxiliary device (4) comprises a supporting seat (401), a vertical rod (402), an upper auxiliary rod (403) and a lower auxiliary rod (404); the supporting seat (401) is fixed at the top of the rack (1), and the end part of the supporting seat extends out of the side surface of the rack (1); the top of the vertical rod (402) is rotatably connected to the end of the supporting seat (401), and the bottom of the vertical rod is connected with the upper auxiliary rod (403) and the lower auxiliary rod (404); the upper auxiliary rod (403) and the lower auxiliary rod (404) are arranged in parallel, and the upper auxiliary rod (403) and the lower auxiliary rod (404) are used for clamping a pipe.
2. The three-dimensional curvature bender according to claim 1, wherein: the feeding device (3) further comprises a material ejecting mechanism (302), a connecting plate (303) and a sliding block (308); the material ejecting mechanism (302) is used for ejecting the pipe until the end part of the pipe is tightly contacted with the material pushing mechanism (301); when the pipe bending device is installed, the pipe bending device (2) is positioned between the material pushing mechanism (301) and the material ejecting mechanism (302); the material pushing mechanism (301) and the material ejecting mechanism (302) are respectively fixed on the same side of the connecting plate (303); the sliding blocks (308) are multiple and are uniformly arranged on the other side of the connecting plate (303); a slide rail (101) is arranged on the side surface of the rack (1); the sliding block (308) is connected with the sliding rail (101) in a sliding mode.
3. The three-dimensional curvature bender according to claim 2, wherein: the side surface of the connecting plate (303) is provided with a hole structure (3031); the ejection mechanism (302) comprises an ejection support, and a through hole (3021) is formed in the side surface of the ejection support; the ejection mechanism (302) and the connecting plate (303) are fixed by assembling a bolt through a through hole (3021) and a hole structure (3031); the hole structures (3031) are arranged in multiple rows, and the relative positions of the material ejecting mechanism (302) and the connecting plate (303) are adjusted by changing the corresponding relation between the through holes (3021) and the hole structures (3031) in different rows.
4. The three-dimensional curvature bender according to claim 3, wherein: the feeding device (3) further comprises a material ejecting block (305) and a first adjusting handle (307); one side of the ejector block (305) opposite to the pipe bending device (2) is hinged with a supporting plate (3051), and the other side is provided with a locking rod; the ejection support is provided with a locking part (306); the locking rod is connected with the locking part (306) in a penetrating way; the first adjusting handle (307) is used for adjusting the clamping force of the locking part (306) to the locking rod; and a material pushing block (304) is arranged on one side of the material pushing bracket, which is opposite to the pipe bending device (2).
5. A three-dimensional curvature bender according to any of claims 1-4, wherein: the top of montant (402) stretch out supporting seat (401) after be connected with the horizontal pole, supporting seat (401) on be equipped with drive arrangement, drive arrangement be used for pushing away or draw the other end of horizontal pole.
6. The three-dimensional curvature bender according to claim 4, wherein: the pipe bending device (2) comprises a fixed seat (201), a pipe channel, a first fixed guide wheel (203), a first driving part (204), a second driving part (205), a second fixed guide wheel (207), a third fixed guide wheel (208), a first bending wheel (209) and a second bending wheel (210); the fixed seat (201) is arranged on the side surface of the rack (1); the fixed seat (201) comprises a top cover and a bottom cover; the first fixed guide wheel (203), the pipe channel, the second fixed guide wheel (207) and the third fixed guide wheel (208) are positioned between the top cover and the bottom cover; the first fixed guide wheel (203) and the second fixed guide wheel (207) are positioned on one side of the pipe passage, and the third fixed guide wheel (208) is positioned on the other side of the pipe passage; the first bending wheel (209) is positioned at the outlet of the pipe channel, and the second bending wheel (210) is positioned at one side of the first bending wheel (209), which is far away from the rack (1) and is deviated to the material ejecting mechanism (302); the first driving part (204) is used for controlling the horizontal positions of the first bending wheel (209) and the second bending wheel (210); the second driving part (205) is used for controlling the vertical position of the second bending wheel (210).
7. The three-dimensional curvature bender according to claim 6, wherein: the pipe bending device (2) further comprises a bending die holder (202); the bending die holder (202) comprises a top plate and a bottom plate which are connected with each other; one end of the top plate and one end of the bottom plate are hinged with a first fixed guide wheel (203), the first bending wheel (209) is arranged between the top plate and the bottom plate, and the first driving part (204) controls the horizontal positions of the first bending wheel 209 and the second bending wheel 210 by driving the other ends of the top plate and the bottom plate; the second driving part (205) is arranged on the bending die holder (202); the second bending wheel (210) is connected to the top of the second driving part (205).
8. A method of using the three-dimensional curvature bender of claim 7, wherein: the method is used for processing the top beam square tube for the bus and comprises the following specific steps:
a. one end of the pipe passes through the pipe bending device (2) to be contacted with the material pushing block (304), and the combined part of the pipe and the material pushing block is sleeved by a sleeve body; adjusting the position of the material ejecting mechanism (302) to enable the material ejecting block (305) to eject the other end of the pipe and enable the supporting plate (3051) to support the pipe;
b. the pushing mechanism (301) is driven by the power device to move towards the fixing part (104), and the pipe and the pushing mechanism (302) move synchronously to move the pipe to a bending position;
c. the power device drives the material pushing mechanism (301) to move towards the direction far away from the fixing part (104), meanwhile, the first driving part (204) pushes the bending die holder (202) to move towards the direction far away from the rack (1), so that the first bending wheel (209) moves to a preset position, a force far away from the rack (1) is applied to the pipe, and the pipe bends towards the direction far away from the rack (1); the second driving part (205) drives the second bending wheel (210) to move upwards, so that the second bending wheel (210) moves to a preset position, the second bending wheel (210) exerts an upward force on the pipe, the pipe is bent upwards, and meanwhile, the bending work of the pipe in the X-axis direction and the Z-axis direction is completed;
d. the end of the pipe in contact with the ejector block (305) is deviated in the direction away from the rack (1), and the ejector block (305) rotates together with the end of the pipe until the pipe is not in contact with the ejector block (305).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910132983.7A CN109772964B (en) | 2018-11-28 | 2018-11-28 | Pipe bending device and application method thereof |
| CN201811438974.2A CN109277443B (en) | 2018-11-28 | 2018-11-28 | Three-dimensional curvature pipe bender and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811438974.2A CN109277443B (en) | 2018-11-28 | 2018-11-28 | Three-dimensional curvature pipe bender and using method thereof |
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| CN201910132983.7A Division CN109772964B (en) | 2018-11-28 | 2018-11-28 | Pipe bending device and application method thereof |
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| CN109277443A CN109277443A (en) | 2019-01-29 |
| CN109277443B true CN109277443B (en) | 2020-04-14 |
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| CN201910132983.7A Active CN109772964B (en) | 2018-11-28 | 2018-11-28 | Pipe bending device and application method thereof |
| CN201811438974.2A Active CN109277443B (en) | 2018-11-28 | 2018-11-28 | Three-dimensional curvature pipe bender and using method thereof |
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| CN112958661A (en) * | 2021-02-23 | 2021-06-15 | 广州聚物汇科技有限公司 | Intelligent pipe bending equipment |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4041668A1 (en) * | 1990-12-22 | 1992-07-02 | Walter E Spaeth | Hollow metal profile bending - has mandrel to fill the hollow interior on entry to the bending rollers |
| DE4335901A1 (en) * | 1993-10-21 | 1995-04-27 | Schwarze Rigobert | Double-head pipe bending machine |
| DE19717232A1 (en) * | 1997-04-24 | 1998-10-29 | Suban Ag | Method and device for three-dimensional bending of hollow metal profiles |
| DE10119030A1 (en) * | 2000-04-18 | 2002-01-03 | Palima W Ludwig & Co | Bending device for bending tubes in two and/or three dimensions has bending rollers in plane perpendicular to tube input axis |
| DE502004007277D1 (en) * | 2004-03-26 | 2008-07-10 | Wafios Ag | Bending device for rod and tubular workpieces |
| CN201960021U (en) * | 2010-12-20 | 2011-09-07 | 中核(天津)科技发展有限公司 | Integrated pipe bending device |
| CN102489564A (en) * | 2011-11-24 | 2012-06-13 | 上海第二工业大学 | Device and method for realizing spatial three-dimensional variable curvature bending of pipe |
| CN203124505U (en) * | 2013-02-26 | 2013-08-14 | 昆山市天之衣精工机械设备有限公司 | Pipe-bending machine |
| CN205270490U (en) * | 2015-11-20 | 2016-06-01 | 张家港市立业机械有限公司 | Pipe bender |
| CN107052110B (en) * | 2017-05-10 | 2018-11-09 | 南京航空航天大学 | Variable cross-section three-dimensional complex component part spinning and 3 D auto roll bending synthesis building mortion and method |
| CN207642071U (en) * | 2017-10-30 | 2018-07-24 | 中山市恒驰森自动化设备有限公司 | Bimodulus bending machine |
| CN107716758B (en) * | 2017-10-30 | 2023-08-01 | 安徽德系重工科技有限公司 | Flexible feeding device of pipe bending machine and pipe bending machine thereof |
| CN107803437A (en) * | 2017-12-07 | 2018-03-16 | 和和机械（张家港）有限公司 | Feeding trolley in bending machine |
| CN209094269U (en) * | 2018-11-28 | 2019-07-12 | 安徽德系重工科技有限公司 | A kind of three dimensional curvature bending machine |
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| CN109772964B (en) | 2023-07-25 |
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Denomination of invention: A three-dimensional curvature pipe bender and its application method Effective date of registration: 20211018 Granted publication date: 20200414 Pledgee: Anhui Ma'anshan Rural Commercial Bank Co., Ltd Pledgor: ANHUI DEXI DHI TECHNOLOGY Co.,Ltd. Registration number: Y2021980010840 |
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