CN117772872A - Double-end pipe bending machine for stainless steel pipe machining - Google Patents
Double-end pipe bending machine for stainless steel pipe machining Download PDFInfo
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- CN117772872A CN117772872A CN202410218108.1A CN202410218108A CN117772872A CN 117772872 A CN117772872 A CN 117772872A CN 202410218108 A CN202410218108 A CN 202410218108A CN 117772872 A CN117772872 A CN 117772872A
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- 238000005452 bending Methods 0.000 title claims abstract description 81
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 15
- 239000010935 stainless steel Substances 0.000 title claims abstract description 15
- 238000003754 machining Methods 0.000 title claims description 9
- 238000000034 method Methods 0.000 claims description 19
- 239000011324 bead Substances 0.000 claims description 16
- 238000010030 laminating Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000012634 fragment Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000013459 approach Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 1
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Abstract
The invention belongs to the technical field of pipe bending machines, and particularly discloses a double-head pipe bending machine for processing stainless steel pipes, which comprises a bottom plate and a sliding frame arranged at the top of the bottom plate, wherein a fixing frame corresponding to the sliding frame is fixed on the top surface of the bottom plate, the sliding frame is positioned at the front side part of the fixing frame, a pipe is correspondingly clamped between the rear side surface of the sliding frame and the front side surface of the fixing frame, arc-shaped grooves corresponding to the pipe are formed in the rear side surface of the sliding frame and the front side surface of the fixing frame, a first air cylinder is arranged at the front side part of the sliding frame, the first air cylinder is fixedly arranged on the top surface of the bottom plate, and the output end of the first air cylinder is connected with the front side surface of the sliding frame. According to the invention, the rotating wheel drives the square round rod to rotate by the inserted rod, at the moment, the square round rod drives the bent pipe arm to rotate, the bent pipe arm is displaced along the circumferential outer side face of the bent pipe die in a direction away from the fixing frame, and the bent forming of two ends of a pipe is effectively realized through the bent pipe structures on two sides of the sliding frame, so that the production efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of pipe bending machines, and particularly relates to a double-head pipe bending machine for machining a stainless steel pipe.
Background
The pipe bender is important processing equipment in the pipe processing process, is roughly divided into a numerical control pipe bender, a hydraulic pipe bender and the like, is applied to the construction of pipeline laying machines in the aspects of electric power construction, railway construction, bridges, ships and the like, and has the advantages of multiple functions, reasonable structure, simplicity in operation and the like.
At present, a pipe bending machine is usually adopted as a single-head pipe bending machine, and mainly comprises an electric oil pump, a high-pressure oil pipe, a quick connector, a working oil cylinder, a plunger and a pipe bending component, wherein high-pressure oil output by the electric oil pump is fed into the working oil cylinder through the high-pressure oil pipe, the high-pressure oil pushes the plunger in the working oil cylinder to generate thrust, so that a clamped pipe is moved to a position to be processed, equipment is started, the pipe bending component bends the pipe to be bent at one end of the pipe, if the other end of the pipe is required to be bent, the pipe is detached, and the position to be processed of the other end of the pipe is clamped again.
With respect to the related art in the above, the inventors consider that there are the following drawbacks: if the two ends of the pipe are required to be bent and formed, the pipe is required to be clamped repeatedly, so that the problems of complexity and production efficiency reduction exist.
Therefore, it is necessary to invent a double-ended bending machine for stainless steel pipe processing to solve the above problems.
Disclosure of Invention
Aiming at the problems, the invention provides a double-head pipe bending machine for processing stainless steel pipes, which solves the problems in the prior art:
in order to achieve the above purpose, the present invention provides the following technical solutions: the double-end pipe bending machine for machining the stainless steel pipe comprises a bottom plate and a sliding frame arranged at the top of the bottom plate, wherein a fixing frame corresponding to the sliding frame is fixed on the top surface of the bottom plate, the sliding frame is positioned at the front side part of the fixing frame, a pipe is correspondingly clamped between the rear side surface of the sliding frame and the front side surface of the fixing frame, arc grooves corresponding to the pipe are formed in the rear side surface of the sliding frame and the front side surface of the fixing frame, a first cylinder is arranged at the front side part of the sliding frame and fixedly installed on the top surface of the bottom plate, the output end of the first cylinder is connected with the front side surface of the sliding frame, bent pipe structures for clamping the pipe are arranged at the two sides of the sliding frame, each bent pipe structure comprises a rotating wheel, teeth on the surface of the rotating wheel are externally connected with gears of the output end of the first motor, and the rotating wheel is used for bending the pipe through the bent pipe structures;
the pipe bending structure further comprises a vertically arranged sleeve, the top and the bottom of the circumferential outer side surface of the sleeve are connected with the side surface of the sliding frame by utilizing side rods, the rotating wheel is positioned at the top of the sleeve, the bottom end of the rotating wheel is fixedly provided with an inserted link inserted into the sleeve, the rotating wheel drives the inserted link to rotate in the sleeve, the surface of the sleeve is sleeved with a pipe bending die, the center of the circumferential outer side surface of the pipe bending die is provided with a ring groove, and the circumferential outer side surface of the pipe is correspondingly attached to the surface of the ring groove;
the square round bar that inserted bar one end was fixed with the level and sets up, square round bar is in the sleeve pipe top, bend pipe die one side is provided with the return bend arm, and the return bend arm bottom is connected with the universal wheel, and the universal wheel rolls at the bottom plate top surface, and the return bend arm leading flank is provided with the recess that corresponds with the annular, and the return bend arm passes through the recess and corresponds cooperation centre gripping tubular product with the annular of bend pipe die, the return bend arm top is fixed with the sliding sleeve, and the sliding sleeve slip cup joints in square round bar surface, and the inside square round groove that corresponds with square round bar that is provided with of sliding sleeve, sliding sleeve front end circumference lateral surface is fixed with the ring strip, and the ring strip outside rotates and cup joints the ring, and the ring strip spiral cup joints in square round bar surface, and the tooth on ring surface's tooth external second motor output's gear.
Further, the carriage bottom surface is fixed with two vertical sill bars, the bottom plate top surface is provided with the spout that corresponds with the sill bar, the spout is inside to be provided with the inner panel that runs through the sill bar, and the carriage drives the sill bar and slides at the interior board surface of sliding in-process.
Further, all be provided with the commentaries on classics pipe with the bottom of curved pipe die top, the commentaries on classics pipe corresponds to cup joint in the side lever surface, curved pipe die top surface and bottom surface all are provided with the rack that annular array was arranged, and the commentaries on classics pipe surface is provided with the tooth that corresponds with the rack, and changes the laminating of pipe circumference lateral surface and rack top surface, drives curved pipe die at sleeve pipe surface rotation when the tubular product is buckled.
Furthermore, the pipe end is inserted with a core rod, the outer side face of the core rod is connected with the output end of the second cylinder, the inner side end of the core rod is provided with a bent pipe bead, the inner side end of the core rod is movably inserted with a connecting frame, the outer side end of the connecting frame spirally penetrates through the center of the bent pipe bead, and the bent pipe bead is positioned between the bent pipe die and the bent pipe arm.
Further, the sliding frame rear side is fixed with a plurality of cross bars, the two side faces of the fixing frame are fixed with side plates corresponding to the cross bars one by one, the rear side ends of the cross bars correspondingly penetrate through the side plates, the surface of the cross bars is sleeved with a sliding ring, the front side of the sliding ring is connected with the sliding frame rear side through a spring, and the spring is sleeved on the surface of the cross bars.
Further, the surface of the pipe is provided with an arc-shaped plate corresponding to the cross bars one to one, the inner concave surface of the arc-shaped plate is attached to the surface of the pipe, the outer convex surface of the arc-shaped plate is connected with the slip ring by the elastic sheet, a rotating plate is arranged between the slip ring and the arc-shaped plate, the outer side end of the rotating plate is hinged with the slip ring, and the inner side end of the rotating plate is hinged with the outer convex surface of the arc-shaped plate.
The invention has the technical effects and advantages that:
1. according to the invention, the rotating wheel drives the square round rod to rotate by the inserted rod, at the moment, the square round rod drives the bent pipe arm to rotate, the bent pipe arm is displaced along the circumferential outer side face of the bent pipe die in a direction away from the fixing frame, and the bent forming of two ends of a pipe is effectively realized through the bent pipe structures on two sides of the sliding frame, so that the production efficiency is improved.
2. In the process of clamping the pipe by matching the sliding frame and the fixing frame, the pressure applied on the pipe by the arc plates distributed up and down is improved, the pressure of the pipe on the sliding frame is further improved, and the condition that the pipe rotates or moves in the bending process is avoided.
3. When the pipe bending arm and the pipe bending die are matched for bending pipes, friction force of the pipe bending arm and the pipe bending die enables the pipe bending die to rotate on the surface of the sleeve, the top and the bottom of the pipe bending die are limited through the rotating pipes on the surface of the side rods, dislocation movement of the pipe bending die and the pipe bending arm in the rotating process is avoided, and grooves of the pipe bending arm and annular grooves of the pipe bending die always stably clamp pipes.
Drawings
FIG. 1 is a schematic view of a double-ended bending machine for processing stainless steel pipes according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of a sliding engagement of a carriage with a base plate in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view of the overall structure of an elbow according to an embodiment of the present invention;
FIG. 4 is an overall schematic of a mandrel in accordance with an embodiment of the present invention;
FIG. 5 is a schematic view of a carriage and a fixture for clamping a pipe in cooperation with one another in an embodiment of the present invention;
FIG. 6 is an enlarged view of the structure of portion A in FIG. 5 in accordance with an embodiment of the present invention;
in the figure: 1. a bottom plate; 2. a carriage; 3. a fixing frame; 4. a pipe; 5. a first cylinder; 6. a rotating wheel; 7. a bottom bar; 8. an inner plate; 9. a sleeve; 10. a side bar; 11. a rod; 12. bending a pipe die; 13. a square round bar; 14. a bent pipe arm; 15. a sliding sleeve; 16. a toothed ring; 17. a rotary pipe; 18. a rack; 19. a core rod; 20. a second cylinder; 21. a bent pipe bead; 22. a connecting frame; 23. a cross bar; 24. a slip ring; 25. a spring; 26. an arc-shaped plate; 27. a spring plate; 28. and (5) rotating the plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments.
The invention provides a double-end pipe bender for stainless steel pipe machining, which is shown in figures 1, 2 and 5 and comprises a bottom plate 1 and a sliding frame 2 arranged at the top of the bottom plate 1, wherein a fixing frame 3 corresponding to the sliding frame 2 is fixed on the top surface of the bottom plate 1, the sliding frame 2 is positioned at the front side part of the fixing frame 3, a pipe 4 is correspondingly clamped between the rear side surface of the sliding frame 2 and the front side surface of the fixing frame 3, arc grooves corresponding to the pipe 4 are formed in the rear side surface of the sliding frame 2 and the front side surface of the fixing frame 3, a first air cylinder 5 is arranged at the front side part of the sliding frame 2, the first air cylinder 5 is fixedly arranged on the top surface of the bottom plate 1, and the output end of the first air cylinder 5 is connected with the front side surface of the sliding frame 2. The pipe 4 is correspondingly placed between the sliding frame 2 and the fixing frame 3, the first air cylinder 5 works to push the sliding frame 2 to move, the sliding frame 2 gradually approaches the fixing frame 3 in the moving process until the rear side surface of the sliding frame 2 is attached to the front side surface of the fixing frame 3, at the moment, the sliding frame 2 and the fixing frame 3 correspondingly clamp the pipe 4 through arc grooves, and limiting of the pipe 4 is completed through clamping. The two sides of the sliding frame 2 are provided with bent pipe structures for clamping the pipe 4, each bent pipe structure comprises a rotating wheel 6, teeth on the surface of each rotating wheel 6 are externally connected with gears at the output end of the first motor, and the rotating wheels 6 rotate to bend the pipe 4 through the bent pipe structures. After the carriage 2 and the fixing frame 3 are matched to clamp the pipe 4, the pipe bending structure is correspondingly used for clamping the end part of the pipe 4, the gear at the output end of the first motor is meshed with teeth on the surface of the rotating wheel 6, the rotating wheel is driven by the gear to rotate by the first motor, the pipe bending process is carried out on the end part of the pipe 4 by the rotating wheel through the pipe bending structure, the two sides of the carriage 2 are bent through the two ends of the pipe 4 through the pipe bending structure effectively, and the production efficiency of pipe bending is improved.
In fig. 2, two vertical bottom rods 7 are fixed on the bottom surface of the carriage 2, a chute corresponding to the bottom rods 7 is arranged on the top surface of the bottom plate 1, an inner plate 8 penetrating through the bottom rods 7 is arranged in the chute, and the carriage 2 drives the bottom rods 7 to slide on the surface of the inner plate 8 in the sliding process. When the first air cylinder 5 works to push the sliding frame 2 to slide on the top surface of the bottom plate 1, the sliding frame 2 drives the bottom rod 7 to move back and forth in the sliding groove, so that the relative distance between the sliding frame 2 and the fixing frame 3 is controlled, and the pipe 4 is conveniently placed in or withdrawn from between the sliding frame 2 and the fixing frame 3. When the bottom rod 7 moves horizontally, the bottom rod 7 slides on the surface of the inner plate 8, the bottom rod 7 can only move horizontally back and forth on the top surface of the bottom plate 1 by utilizing the inner plate 8, and the inner plate 8 penetrates through the bottom rod 7, so that the carriage 2 is prevented from moving up and down on the top surface of the bottom plate 1, the arc-shaped groove of the carriage 2 and the arc-shaped groove of the fixing frame 3 are always matched correspondingly, and the phenomenon that the carriage 2 and the fixing frame 3 cannot be used for stably clamping the pipe 4 due to the up-and-down movement of the carriage 2 is avoided.
In fig. 3 and 5, the return bend structure still includes the sleeve pipe 9 of vertical setting, sleeve pipe 9 circumference lateral surface top and bottom all utilize side lever 10 to connect balladeur train 2 side, and runner 6 is in sleeve pipe 9 top, and runner 6 bottom mounting has the inserted bar 11 of grafting in sleeve pipe 9 inside, and runner 6 drives inserted bar 11 and rotates in sleeve pipe 9 inside, sleeve pipe 9 surface has cup jointed curved pipe die 12, and curved pipe die 12 circumference lateral surface center department is provided with the annular, and tubular product 4 circumference lateral surface corresponds laminating with the annular surface. When the sliding frame 2 and the fixing frame 3 are matched to clamp the pipe 4, the circumferential outer side surfaces of the two ends of the pipe 4 are positioned in the annular grooves of the pipe bending die 12, when the sliding frame 2 and the fixing frame 3 are separated, the pipe 4 is pulled to move, the pipe 4 slides inside the arc grooves of the sliding frame 2 and the fixing frame 3, when the circumferential outer side surfaces of the pipe 4 are contacted with the pipe bending die 12 in the sliding process, the pipe 4 drives the pipe bending die 12 to move, and at the moment, the pipe bending die 12 rotates on the surface of the sleeve 9, so that sliding friction damage of the pipe 4 and the sleeve 9 is avoided.
In fig. 1 and 3, the square round bar 13 that the level set up is fixed with to inserted bar 11 one end, square round bar 13 is in sleeve pipe 9 top, curved pipe die 12 one side is provided with return bend arm 14, and return bend arm 14 bottom is connected with the universal wheel, and the universal wheel rolls at bottom plate 1 top surface, and return bend arm 14 leading flank is provided with the recess that corresponds with the annular, and return bend arm 14 passes through the recess and corresponds cooperation centre gripping tubular product 4 with the annular of curved pipe die 12, return bend arm 14 top is fixed with sliding sleeve 15, and sliding sleeve 15 sliding sleeve is in square round bar 13 surface, and sliding sleeve 15 inside is provided with the square round groove that corresponds with square round bar 13, sliding sleeve 15 leading flank circumference lateral surface is fixed with the ring strip, and the ring strip outside rotates and cup joints toothed ring 16, and toothed ring 16 spiral cup joints in square round bar 13 surface, and toothed tooth on toothed ring 16 surface external second motor output's gear. The sliding frame 2 and the fixing frame 3 are both used for clamping the pipe 4 by using an arc groove, a gear at the output end of the second motor is meshed with teeth on the surface of the toothed ring 16, the toothed ring 16 is driven by the gear to rotate on the surface of the ring strip by using the second motor, the sliding sleeve 15 is limited by using square grooves Fang Yuangan, the spiral effect of the rotating toothed ring 16 and the square rod 13 enables the sliding sleeve 15 to move forward to be close to the sleeve 9, and when the sliding sleeve 15 drives the bent pipe arm 14 to move forward, the bent pipe arm 14 which moves forward on the top surface of the bottom plate 1 by using universal wheels until the bent pipe arm 14 and the bent pipe die 12 are matched for clamping the end part of the pipe 4, and at the moment, the bent pipe structures at two sides of the sliding frame 2 are respectively used for clamping two ends of the pipe 4.
The first motor work utilizes the gear to drive runner 6 rotation, and when runner 6 drove inserted bar 11 at the inside rotation of sleeve pipe 9, and pivoted inserted bar 11 utilizes the sliding sleeve 15 on square round bar 13 surface to drive return bend arm 14 rotation, and pivoted return bend arm 14 leading flank rotates at the circumference lateral surface of curved die 12, and the circumference lateral surface department along curved die 12 of return bend arm 14 is to the direction displacement that keeps away from mount 3 promptly, the effectual realization is to the bending at tubular product 4 both ends, improves production efficiency.
In fig. 1 and fig. 3, the top and the bottom of the pipe bending die 12 are respectively provided with a rotary pipe 17, the rotary pipes 17 are correspondingly sleeved on the surfaces of the side rods 10, the top and the bottom of the pipe bending die 12 are respectively provided with racks 18 distributed in an annular array, the surfaces of the rotary pipes 17 are provided with teeth corresponding to the racks 18, the circumferential outer side surfaces of the rotary pipes 17 are attached to the top surfaces of the racks 18, and the pipe 4 drives the pipe bending die 12 to rotate on the surface of the sleeve 9 when being bent. The pipe bending arm 14 slides on the surface of the pipe bending die 12 under the driving of the square round bar 13, at the moment, the friction force between the pipe bending arm 14 and the pipe bending die 12 drives the pipe bending die 12 to rotate on the surface of the sleeve 9, the rotating sleeve 9 drives the rack 18 to synchronously rotate, the rotating rack 18 is matched with teeth on the surface of the rotating pipe 17, so that the rotating pipe 17 is driven to rotate on the surface of the side rod 10, the two rotating pipes 17 respectively press the teeth on the top surface and the bottom surface of the pipe bending die 12 under the limitation of the two side rods 10, the pipe bending die 12 is enabled to stably rotate on the surface of the sleeve 9, dislocation movement of the pipe bending die 12 and the pipe bending arm 14 in the rotating process is avoided, and the grooves of the pipe bending arm 14 and the annular grooves of the pipe bending die 12 always stably clamp the pipe 4.
In fig. 1 and 4, the end of the pipe 4 is inserted with a core rod 19, the outer side surface of the core rod 19 is connected with the output end of a second cylinder 20, the inner side end of the core rod 19 is provided with a bent pipe bead 21, the bent pipe bead 21 is made of plastic materials, a connecting frame 22 is movably inserted in the inner side end of the core rod 19, the outer side end of the connecting frame 22 spirally penetrates through the center of the bent pipe bead 21, and the bent pipe bead 21 is positioned between the bent pipe die 12 and the bent pipe arm 14. The pipe bending bead 21 is spirally arranged at the outer side end of the connecting frame 22, when the pipe bending structure clamps the end part of the pipe 4, the second cylinder 20 works to push the core rod 19 to enter the pipe 4 until the pipe bending bead 21 at the inner side end of the core rod 19 moves between the pipe bending die 12 and the pipe bending arm 14, when the pipe bending structure bends the pipe 4 through the pipe bending arm 14 and the pipe bending die 12, the pipe 4 rotates along the surface of the pipe bending bead 21, and at the moment, the pipe bending bead 21 supports the inner side wall of the pipe 4, so that the bending position of the pipe 4 is prevented from being wrinkled. The bent pipe bead 21 made of plastic is simple to process, short in processing period, low in price and convenient and quick to install.
In fig. 5 and 6, the rear side of the carriage 2 is fixed with a plurality of cross bars 23, two side surfaces of the fixing frame 3 are fixed with side plates corresponding to the cross bars 23 one by one, the rear side ends of the cross bars 23 correspondingly penetrate through the side plates, the surface of the cross bars 23 is sleeved with a slip ring 24, the front side of the slip ring 24 is connected with the rear side of the carriage 2 by a spring 25, and the spring 25 is sleeved on the surface of the cross bars 23. Since the fixing frame 3 utilizes the side plates to limit the sliding ring 24, when the sliding frame 2 approaches the fixing frame 3, the back side surface of the sliding frame 2 cooperates with the sliding ring 24 to press the spring 25 on the surface of the cross bar 23. The surface of the pipe 4 is provided with arc plates 26 corresponding to the cross bars 23 one by one, the inner concave surfaces of the arc plates 26 are attached to the surface of the pipe 4, the outer convex surfaces of the arc plates 26 are connected with the slip rings 24 by elastic sheets 27, rotating plates 28 are arranged between the slip rings 24 and the arc plates 26, the outer side ends of the rotating plates 28 are hinged with the slip rings 24, and the inner side ends of the rotating plates 28 are hinged with the outer convex surfaces of the arc plates 26. When the sliding frame 2 and the fixing frame 3 are matched to clamp the pipe 4, the circumferential outer side face of the pipe 4 is contacted with the inner concave face of the arc plate 26, the pipe 4 extrudes the arc plate 26 in the clamping process, the upper arc plate 26 and the lower arc plate 26 are separated from each other in the pressurizing process of the pipe 4, the inner side end of the rotating plate 28 is driven to move when the arc plate 26 moves, the sliding ring 24 cannot extrude due to the elastic force of the spring 25, the sliding ring 24 applies the reacting force of the sliding ring 28 to the arc plate 26 on the surface of the pipe 4 until the rear side face of the sliding frame 2 is attached to the front side face of the fixing frame 3, the front side end face of the arc plate 26 is attached to the rear side face of the sliding frame 2, the arc plates 26 distributed up and down are correspondingly extruded with the pipe 4, the pushing force of the arc plate 26 corresponding to the pipe 4 improves the pressure of the pipe 4 on the sliding frame 2, the pressure of the pipe 4 between the sliding frame 2 and the pipe 3 is further improved, and the condition that the pipe 4 rotates or moves in the bending process is avoided.
The working principle of the invention is as follows:
referring to fig. 1 to 6, when the first cylinder 5 works to push the carriage 2 to slide on the top surface of the bottom plate 1, the carriage 2 drives the bottom rod 7 to move back and forth in the chute, so as to control the relative distance between the carriage 2 and the fixing frame 3, and the pipe 4 is conveniently put into or withdrawn from between the carriage 2 and the fixing frame 3. When the bottom rod 7 moves horizontally, the bottom rod 7 slides on the surface of the inner plate 8, the bottom rod 7 can only move horizontally back and forth on the top surface of the bottom plate 1 by utilizing the inner plate 8, and the inner plate 8 penetrates through the bottom rod 7, so that the carriage 2 is prevented from moving up and down on the top surface of the bottom plate 1, and the arc-shaped groove of the carriage 2 is always matched with the arc-shaped groove of the fixing frame 3 correspondingly.
The pipe 4 is correspondingly placed between the sliding frame 2 and the fixing frame 3, the first air cylinder 5 works to push the sliding frame 2 to move, the sliding frame 2 gradually approaches the fixing frame 3 in the moving process until the rear side surface of the sliding frame 2 is attached to the front side surface of the fixing frame 3, at the moment, the sliding frame 2 and the fixing frame 3 correspondingly clamp the pipe 4 through arc grooves, and limiting of the pipe 4 is completed through clamping.
When the sliding frame 2 and the fixing frame 3 are matched to clamp the pipe 4, the circumferential outer side face of the pipe 4 is contacted with the inner concave face of the arc plate 26, the pipe 4 extrudes the arc plate 26 in the clamping process, the upper arc plate 26 and the lower arc plate 26 are separated from each other in the pressurizing process of the pipe 4, the inner side end of the rotating plate 28 is driven to move when the arc plate 26 moves, the sliding ring 24 cannot extrude due to the elastic force of the spring 25, the sliding ring 24 applies the reacting force of the sliding ring 28 to the arc plate 26 on the surface of the pipe 4 until the rear side face of the sliding frame 2 is attached to the front side face of the fixing frame 3, the front side end face of the arc plate 26 is attached to the rear side face of the sliding frame 2, the arc plates 26 distributed up and down are correspondingly extruded with the pipe 4, the pushing force of the arc plate 26 corresponding to the pipe 4 improves the pressure of the pipe 4 on the sliding frame 2, the pressure of the pipe 4 between the sliding frame 2 and the pipe 3 is further improved, and the condition that the pipe 4 rotates or moves in the bending process is avoided.
The sliding frame 2 and the fixing frame 3 are both used for clamping the pipe 4 by using an arc groove, a gear at the output end of the second motor is meshed with teeth on the surface of the toothed ring 16, the toothed ring 16 is driven by the gear to rotate on the surface of the ring strip by using the second motor, the sliding sleeve 15 is limited by using square grooves Fang Yuangan, the spiral effect of the rotating toothed ring 16 and the square rod 13 enables the sliding sleeve 15 to move forward to be close to the sleeve 9, and when the sliding sleeve 15 drives the bent pipe arm 14 to move forward, the bent pipe arm 14 which moves forward on the top surface of the bottom plate 1 by using universal wheels until the bent pipe arm 14 and the bent pipe die 12 are matched for clamping the end part of the pipe 4, and at the moment, the bent pipe structures at two sides of the sliding frame 2 are respectively used for clamping two ends of the pipe 4.
The first motor work utilizes the gear to drive runner 6 rotation, and when runner 6 drove inserted bar 11 at the inside rotation of sleeve pipe 9, and pivoted inserted bar 11 utilizes the sliding sleeve 15 on square round bar 13 surface to drive return bend arm 14 rotation, and pivoted return bend arm 14 leading flank rotates at the circumference lateral surface of curved die 12, and the circumference lateral surface department along curved die 12 of return bend arm 14 is to the direction displacement that keeps away from mount 3 promptly, the effectual realization is to the bending at tubular product 4 both ends, improves production efficiency.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting.
Claims (6)
1. The utility model provides a duplex head bending machine for stainless steel tube processing which characterized in that: the pipe bending device comprises a bottom plate (1) and a sliding frame (2) arranged at the top of the bottom plate (1), wherein a fixing frame (3) corresponding to the sliding frame (2) is fixed on the top surface of the bottom plate (1), the sliding frame (2) is positioned at the front side part of the fixing frame (3), a pipe (4) is correspondingly clamped between the rear side surface of the sliding frame (2) and the front side surface of the fixing frame (3), arc grooves corresponding to the pipe (4) are formed in the rear side surface of the sliding frame (2) and the front side surface of the fixing frame (3), a first air cylinder (5) is arranged at the front side part of the sliding frame (2), the first air cylinder (5) is fixedly arranged on the top surface of the bottom plate (1), the output end of the first air cylinder (5) is connected with the front side surface of the sliding frame (2), bent pipe structures for clamping the pipe (4) are arranged on two sides of the sliding frame (2), each bent pipe structure comprises a rotating wheel (6), teeth on the surface of the rotating wheel (6) are externally connected with a gear of a first motor output end, and the rotating wheel (6) is used for bending the pipe (4).
The pipe bending structure further comprises a vertically arranged sleeve (9), the top and the bottom of the circumferential outer side surface of the sleeve (9) are connected with the side surface of the sliding frame (2) by utilizing side rods (10), a rotating wheel (6) is positioned at the top of the sleeve (9), an inserting rod (11) inserted into the sleeve (9) is fixed at the bottom end of the rotating wheel (6), the rotating wheel (6) drives the inserting rod (11) to rotate in the sleeve (9), a pipe bending die (12) is sleeved on the surface of the sleeve (9), a ring groove is formed in the center of the circumferential outer side surface of the pipe bending die (12), and the circumferential outer side surface of the pipe (4) is correspondingly attached to the surface of the ring groove;
the utility model discloses a gear, including inserted bar (11), sleeve pipe (9), sleeve pipe (13), return bend arm (14) are fixed with Fang Yuangan (13) that the level set up in inserted bar (11) one end, square round bar (13) are in sleeve pipe (9) top, return bend arm (12) one side is provided with return bend arm (14), return bend arm (14) leading flank is provided with the recess that corresponds with the annular, and return bend arm (14) correspond cooperation centre gripping tubular product (4) through the annular of recess and return bend die (12), return bend arm (14) top is fixed with sliding sleeve (15), sliding sleeve (15) slip cup joint in square round bar (13) surface, and sliding sleeve (15) inside be provided with Fang Yuangan (13) corresponding square round groove, sliding sleeve (15) front side circumference lateral surface is fixed with the ring, and ring outside rotation has cup jointed toothed ring (16), toothed ring (16) spiral cup joint in square round bar (13) surface, and toothed tooth on toothed ring (16) surface circumscribes the gear of second motor output.
2. The double-ended bending machine for machining stainless steel pipes according to claim 1, wherein:
the sliding frame is characterized in that two vertical bottom rods (7) are fixed on the bottom surface of the sliding frame (2), sliding grooves corresponding to the bottom rods (7) are formed in the top surface of the bottom plate (1), inner plates (8) penetrating through the bottom rods (7) are arranged in the sliding grooves, and the sliding frame (2) drives the bottom rods (7) to slide on the surfaces of the inner plates (8) in the sliding process.
3. The double-ended bending machine for machining stainless steel pipes according to claim 1, wherein:
the utility model discloses a pipe bending die, including curved pipe die (12), casing pipe die (4) and casing pipe die (12) are connected in a sleeved mode in the side lever (10) surface, curved pipe die (12) top surface and bottom surface all are provided with rack (18) that annular array was arranged, and curved pipe die (17) surface is provided with the tooth that corresponds with rack (18), and curved pipe die (12) are driven curved pipe die (12) at casing pipe (9) surface rotation when tubular product (4) are buckled with rack (18) top surface laminating to the outside of circumference.
4. The double-ended bending machine for machining stainless steel pipes according to claim 1, wherein:
the pipe is characterized in that a core rod (19) is inserted into the end part of the pipe (4), the outer side surface of the core rod (19) is connected with the output end of a second cylinder (20), an elbow bead (21) is arranged at the inner side end of the core rod (19), a connecting frame (22) is movably inserted into the inner side end of the core rod (19), the outer side end of the connecting frame (22) spirally penetrates through the center of the elbow bead (21), and the elbow bead (21) is positioned between the elbow die (12) and the elbow arm (14).
5. The double-ended bending machine for machining stainless steel pipes according to claim 1, wherein:
the sliding frame is characterized in that a plurality of cross bars (23) are fixed on the rear side face of the sliding frame (2), side plates corresponding to the cross bars (23) one by one are fixed on the two side faces of the fixing frame (3), the rear side ends of the cross bars (23) correspondingly penetrate through the side plates, a sliding ring (24) is sleeved on the surface of the cross bars (23), the front side face of the sliding ring (24) is connected with the rear side face of the sliding frame (2) through a spring (25), and the spring (25) is sleeved on the surface of the cross bars (23).
6. The double-ended bending machine for processing stainless steel pipes according to claim 5, wherein:
the utility model discloses a tubular product, including tubular product (4) surface, arc (26) with a plurality of horizontal poles (23) one-to-one, concave laminating is on tubular product (4) surface in arc (26), arc (26) evagination face utilizes shell fragment (27) to connect sliding ring (24), be provided with between sliding ring (24) and arc (26) and change board (28), change board (28) outside end and sliding ring (24) articulated, change board (28) inboard end and arc (26) evagination face articulated.
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| CN202410218108.1A CN117772872B (en) | 2024-02-28 | 2024-02-28 | Double-end pipe bending machine for stainless steel pipe machining |
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| CN202410218108.1A CN117772872B (en) | 2024-02-28 | 2024-02-28 | Double-end pipe bending machine for stainless steel pipe machining |
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| CN117772872B CN117772872B (en) | 2024-05-07 |
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| CN117772872B (en) | 2024-05-07 |
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