CN111558640A

CN111558640A - Automatic pipe bender

Info

Publication number: CN111558640A
Application number: CN202010400379.0A
Authority: CN
Inventors: 肖世文; 肖世祥; 夏明清; 黄广治; 肖世军
Original assignee: Zhongshan Jingda Teke Machinery Co ltd
Current assignee: Zhongshan Jingda Teke Machinery Co ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2020-08-21

Abstract

The invention discloses an automatic pipe bender, which is provided with an inner cutter device and comprises: a frame; the first assembly is arranged on the rack and comprises a first core rod and a profiling mold, and the profiling mold is configured to slide relative to the rack; and the second assembly comprises a second core rod, and the second core rod is rotatably arranged on the machine frame. The first core rod is inserted into one end of the pipe and tightly attached to the profiling mold, the second core rod is inserted into the other end of the pipe, and when the second core rod rotates, the profiling mold moves towards the direction of the second assembly at a preset speed. Compared with the prior art, in the technical scheme, the explorator moves at a preset speed, and is stably and automatically fed, so that the friction force between the explorator and the pipe can be reduced when the pipe is bent, the stretching degrees of the two sides of the pipe tend to be consistent, the phenomenon of inclined openings is greatly reduced, the quality of products is improved, and the production cost is reduced.

Description

Automatic pipe bender

Technical Field

The invention relates to the technical field of pipe processing, in particular to an automatic pipe bender.

Background

The pipe is bent earlier usually to the pipe when traditional return bend equipment processing little U pipe, the rethread saw bit cuts, consequently with the piece on the finished product, lubricating oil, need add the cleaner and wash, the polluted environment, and both ends all need cut about the finished product, just can guarantee two terminal surfaces all parallel and level, for this reason, the return bend equipment of cutters in adopting is proposed among the prior art, cut the pipe earlier, bend the pipe again, consequently, only need cut the one end of pipe, the waste material is less, and interior cutters carries out chipless cutting, need not to wash.

However, the bending radii of the two sides of the small U-shaped pipe are different, and in the bending process, one end of the pipe matched with the profiling mold is influenced by the friction force of the profiling mold, so that the stretching degrees of the two sides of the pipe are different, the problem of very serious bevel is caused, the quality of a finished product is low, and the production cost is increased; moreover, under the influence of the pipe bending equipment and the inner cutter device, when the pipe is cut, the length of the cut pipe is longer, and the production requirement of a finished product with shorter length cannot be met.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an automatic pipe bender which can improve the product quality and reduce the production cost.

According to the embodiment of the invention, the automatic pipe bender is provided with an inner cutter device, and comprises: a frame; a first assembly mounted on the frame, the first assembly including a first mandrel and a cam, the cam configured to slide relative to the frame; a second assembly including a second mandrel rotatably mounted on the frame.

The automatic pipe bender provided by the embodiment of the invention at least has the following beneficial effects: after the pipe is subjected to chipless internal cutting through the internal cutting device, the first core rod is inserted into one end of the pipe and tightly attached to the profiling mold, the second core rod is inserted into the other end of the pipe, and when the second core rod rotates, the profiling mold moves towards the direction of the second assembly at a preset speed. Compared with the prior art, in the technical scheme, the explorator moves at a preset speed, and is stably and automatically fed, so that the friction force between the explorator and the pipe can be reduced when the pipe is bent, the stretching degrees of the two sides of the pipe tend to be consistent, the phenomenon of inclined openings is greatly reduced, the quality of products is improved, and the production cost is reduced.

According to some embodiments of the invention, the second assembly includes a rotating member, a fixed member, a curved die plate, and a first driving mechanism, the rotating member is rotatably disposed on the frame, the fixed member is fixedly connected to the rotating member, the curved die plate is fixedly connected to the fixed member, a curved die arc surface is disposed on the curved die plate, the second mandrel is fixedly disposed on the fixed member, and the first driving mechanism is in transmission connection with the rotating member.

According to some embodiments of the invention, the first assembly comprises a second drive mechanism in driving connection with the master form, the second drive mechanism being capable of driving the master form towards the second assembly.

According to some embodiments of the invention, the first assembly includes a second driving mechanism and a first mounting seat, the first mounting seat is slidably disposed on the frame, the explorator is slidably disposed on the first mounting seat, the second driving mechanism is in transmission connection with the explorator, and a third driving mechanism capable of driving the first mounting seat to approach or depart from the curved template is disposed on the frame.

According to some embodiments of the invention, the inner cutter device is slidably mounted to the frame, and a fourth drive mechanism is mounted to the frame and is capable of driving the inner cutter device towards the second assembly.

According to some embodiments of the present invention, the inner cutter device includes a second mounting base, a cutter head, a rotary-cut blade, a support roller, and a first driving assembly, the second mounting base is slidably disposed on the frame, the cutter head is rotatably mounted on the second mounting base, the rotary-cut blade is mounted on the cutter head, the support roller is mounted on the cutter head and is disposed on the same side as the rotary-cut blade, the first driving assembly is fixedly disposed on the second mounting base, and the first driving assembly can drive the cutter head to rotate.

According to some embodiments of the invention, the frame is provided with a feeding device for conveying the pipe to the inner cutter device.

According to some embodiments of the present invention, the feeding device includes a first group of feeding units, a second group of feeding units, and a second driving assembly, the first group of feeding units is slidably disposed on the frame and located at one side of the inner cutter device, the second group of feeding units is fixedly disposed on the frame and located between the inner cutter device and the first group of feeding units, the first group of feeding units and the second group of feeding units are both provided with feeding channels for conveying pipes, the second driving assembly is in transmission connection with the first group of feeding units, and the second driving assembly can drive the first group of feeding units to move toward the second group of feeding units.

According to some embodiments of the invention, each of the first group of feeding units and the second group of feeding units comprises an upper clamping block, a lower clamping block and a third driving assembly, the feeding channel is arranged between the upper clamping block and the lower clamping block, the third driving assembly is in transmission connection with the upper clamping block, and the third driving assembly can drive the upper clamping block to approach or depart from the lower clamping block.

According to some embodiments of the invention, the core pulling device comprises a core pulling plate, a core pulling pull rod and a core pulling oil cylinder, the core pulling plate is slidably arranged on the rack, the core pulling pull rod is fixedly arranged on the core pulling plate, one end of the core pulling pull rod is fixedly connected with the first core rod, the core pulling oil cylinder is fixedly arranged on the rack, and the core pulling oil cylinder can drive the core pulling pull rod to reciprocate through the core pulling plate.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an automatic pipe bender according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is a schematic structural diagram of a first assembly and a core-pulling device according to an embodiment of the invention;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a schematic structural diagram of a second assembly according to an embodiment of the present invention;

FIG. 6 is an enlarged schematic view at B of FIG. 5;

FIG. 7 is a schematic structural diagram of an internal cutter device according to an embodiment of the present invention;

FIG. 8 is an enlarged schematic view at C of FIG. 7;

FIG. 9 is an exploded view of FIG. 8;

fig. 10 is a schematic structural diagram of a feeding device according to an embodiment of the present invention.

Reference numerals:

the device comprises a frame 10, a feeding guide sleeve 11, a rounding and straightening device 12 and a control computer box 13;

the first assembly 20, the first core rod 21, the profiling 22, the third arc-shaped groove 221, the second driving mechanism 23, the second driving motor 231, the first lead screw 232, the first lead screw nut 233 and the first mounting seat 24;

the second assembly 30 comprises a rotating part 32 of a second core rod 31, a fixed part 33, a second arc-shaped groove 331, a bending die plate 34, a bending die arc surface 341, a first arc-shaped groove 342, a first driving mechanism 35, a first driving motor 351, a first transmission shaft 352, a second transmission shaft 353, a driving sprocket 354, a driven sprocket 355, a sprocket tensioning part 356 and a third driving mechanism 40;

the second mounting seat 51, the oil receiving cover 511, the cutter head 52, the rotary cutter blade 53, the supporting roller 54, the first driving component 55, the adjusting sleeve 56, the second conical surface 561, the pushing component 57, the sliding block 58 and the first conical surface 581;

a fourth driving mechanism 60, a third driving motor 61, a second lead screw 62;

the feeding device 70, the first group of feeding units 71, the second group of feeding units 72, the second driving assembly 73, the fifth driving motor 731, the third screw rod 732, the third screw rod nut 733, the feeding channel 74, the upper clamping block 711, the lower clamping block 712 and the third driving assembly 713;

core-pulling device 80, core-pulling plate 81, core-pulling pull rod 82 and core-pulling oil cylinder 83.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to, for example, the upper, lower, etc., is indicated based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

As shown in fig. 1, 3 and 5, an automatic pipe bender according to an embodiment of the present invention has an inside cutter device, and includes: a frame 10; a first assembly 20, wherein the first assembly 20 is mounted on the frame 10, the first assembly 20 comprises a first core rod 21 and a profile 22, and the profile 22 is configured to slide relative to the frame 10; and a second assembly 30, wherein the second assembly 30 comprises a second core rod 31, and the second core rod 31 is rotatably arranged on the frame 10.

According to the automatic pipe bender of the embodiment of the present invention, after the pipe is subjected to the chipless internal cutting by the internal cutting knife device, the first core rod 21 is inserted into one end of the pipe and closely attached to the master 22, the second core rod 31 is inserted into the other end of the pipe, and the master 22 moves towards the second assembly 30 at a predetermined speed while the second core rod 31 rotates. Compared with the prior art, in the technical scheme, the explorator 22 moves at a preset speed, and is stably and automatically fed, so that the friction force between the explorator 22 and the pipe can be reduced when the pipe is bent, the stretching degrees of the two sides of the pipe tend to be consistent, the phenomenon of inclined openings is greatly reduced, the quality of products is improved, and the production cost is reduced.

As shown in fig. 1 and 5, it can be understood that in some embodiments of the present invention, the second assembly 30 includes a rotating member 32, a fixed member 33, a bending die plate 34, and a first driving mechanism 35, the rotating member 32 is rotatably disposed on the frame 10, the fixed member 33 is fixedly connected to the rotating member 32, the bending die plate 34 is fixedly connected to the fixed member 33, a bending die arc 341 is disposed on the bending die plate 34, the second core rod 31 is fixedly disposed on the fixed member 33, and the first driving mechanism 35 is in transmission connection with the rotating member 32. The first driving mechanism 35 drives the rotating part 32 to rotate, so as to drive the fixing part 33, the bending template 34 and the second core rod 31 to turn towards the profiling 22, so that the pipe is bent and formed on the bending die arc 341, the bending is automated, the pipe is bent without spending much effort, the labor and the time are saved, the operation is simple, and the bending precision is high.

As shown in fig. 1, 2, 5, and 6, it can be understood that, in some embodiments of the present invention, a first arc-shaped groove 342 extending to the curved surface 341 of the bending die and adapted to the pipe is provided on the bending die, a second arc-shaped groove 331 matching with the first limiting groove is provided on the fixing member 33, the first arc-shaped groove 342 and the second arc-shaped groove 331 surround a positioning through hole, the second mandrel 31 is inserted into the positioning through hole, the positioning is accurate, and the forming position of the pipe is limited by the first arc-shaped groove 342 and the second arc-shaped groove 331, so as to avoid misalignment.

It should be noted that a third arc-shaped groove 221 is formed in the master 22, the first core rod 21 is located in the third arc-shaped groove 221, when the first core rod 21 and the second core rod 31 are respectively inserted into two ends of the tube, and the tube is tightly attached to the positioning through hole and the third arc-shaped groove 221, when the rotating member 32 rotates, the curved plate 34 is turned over to be tightly attached to the master 22, and the curved surface 341 faces away from the master 22, so that the tube is bent and formed on the curved surface 341.

As shown in fig. 1 and 5, it is conceivable that, in some embodiments of the present invention, the first driving mechanism 35 includes a first driving motor 351, a first transmission shaft 352, a second transmission shaft 353, a driving sprocket 354, a driven sprocket 355 and a chain (not shown in the drawings), the first driving motor 351 is fixedly disposed on the frame 10, the first transmission shaft 352 is rotatably disposed on the frame 10 and below the master 22, the first driving motor 351 is drivingly connected to the first transmission shaft 352 through a belt transmission, the driving sprocket 354 is fixedly connected to the first transmission shaft 352, the rotating member 32 and the driven sprocket 355 are fixedly connected through the second transmission shaft 353, the chain is wound around the driving sprocket 354 and the driven sprocket 355, the first driving motor 351 drives the first transmission shaft 352 to rotate through a belt transmission or a gear transmission, etc., thereby driving the driving sprocket 354 and the driven sprocket 355 to rotate, thereby driving the rotating part 32 to rotate, and the transmission is stable, safe and reliable. Of course, in some embodiments, the first driving mechanism 35 may also be provided as a gear transmission device, a belt transmission device, etc., and is not limited herein.

It should be noted that, in some embodiments of the present invention, the frame 10 is provided with a sprocket tensioning member 356 engaged with the driving sprocket 354, the driven sprocket 355 and the chain, so as to maintain the chain in good tension with the driving sprocket 354 and the driven sprocket 355, thereby preventing the chain from being separated from the driving sprocket 354 and the driven sprocket 355 due to looseness, and further ensuring the safety of surrounding personnel and equipment.

It is understood that in some embodiments of the present invention, the plurality of bending templates 34 are uniformly distributed on the fixing member 33, so as to facilitate bending of a plurality of pipes, each pipe is uniformly stressed, and the quality of the bent pipe is guaranteed.

In some embodiments, the first assembly 20 includes a second driving mechanism 23, the second driving mechanism 23 is in transmission connection with the master form 22, and the second driving mechanism 23 can drive the master form 22 to move towards the second assembly 30, so that the structure is simple and the transmission is reliable.

As shown in fig. 1, 3 and 4, in some embodiments of the present invention, the first assembly 20 includes a second driving mechanism 23 and a first mounting seat 24, the first mounting seat 24 is slidably disposed on the frame 10, the master 22 is slidably disposed on the first mounting seat 24, the second driving mechanism 23 is in transmission connection with the master 22, and a third driving mechanism 40 capable of driving the first mounting seat 24 to approach or depart from the curved template 34 is disposed on the frame 10. It will be appreciated that in some embodiments of the invention, the fence 22 slides laterally relative to the first mount 24 and the first mount 24 slides vertically relative to the frame 10.

By adopting the structure, the third driving mechanism 40 drives the first mounting seat 24 to vertically move, so as to drive the profiling 22 to be away from the bent template 34, at the moment, the first driving mechanism 35 can drive the rotating part 32 to rotate, so as to drive the fixing part 33 and the bent template 34 to rotate, so that the avoiding effect is achieved, and the smooth rotation of the second component 30 is ensured.

As shown in fig. 1, 3 and 4, it can be understood that, in some embodiments of the present invention, the second driving mechanism 23 includes a second driving motor 231, a first lead screw 232 and a first lead screw nut 233, the second driving motor 231 is fixedly connected to the frame 10, the first lead screw 232 is in driving connection with the second driving motor 231, and the first lead screw nut 233 is fixedly mounted to the fence 22 and is in threaded connection with the first lead screw 232. The first lead screw 232 is driven to rotate by the second driving motor 231, so that the first lead screw nut 233 is driven to drive the profiling 22 to reciprocate, the accuracy is high, and the transmission is stable.

Of course, in some embodiments, the second driving mechanism 23 may also be configured as a rack-and-pinion transmission device, the rack is disposed on the cam 22, and the gear is engaged with the rack and driven by a motor to perform reciprocating motion; or the second driving mechanism 23 may be provided as another transmission device, etc., and is not limited herein.

It should be understood that the third driving mechanism 40 is a lifting cylinder, and of course, in some embodiments, the third driving mechanism 40 may also be provided as a ball screw transmission device, which is not limited herein.

It is contemplated that the first mounting block 24 is slidably coupled to the frame 10 via a slide rail and a slide block.

As shown in fig. 1, 7 to 9, in some embodiments of the present invention, the inner cutter device is slidably disposed on the frame 10, a fourth driving mechanism 60 is disposed on the frame 10, the fourth driving mechanism 60 can drive the inner cutter device to move toward the second assembly 30, and the inner cutter device is disposed to move relative to the frame 10, so as to facilitate cutting of the pipe.

As shown in fig. 1 and 7, it can be understood that the fourth driving mechanism 60 includes a third driving motor 61, a second lead screw 62, a second lead screw nut (not shown) and a transmission assembly (not shown), a fixed seat is fixedly disposed on the frame 10, the third driving motor 61 is mounted on the fixed seat, the second lead screw 62 is screwed to the second lead screw nut, an end of the second lead screw 62 is fixedly connected to the inner cutter device, the second lead screw nut is rotatably disposed on the fixed seat, the third driving motor 61 is connected to the second lead screw nut through the transmission assembly, the third driving motor 61 drives the second lead screw 62 to reciprocate through the transmission assembly, so as to drive the inner cutter device to move relative to the frame 10, the transmission is reliable, and the accuracy is high. It is understood that in some embodiments of the present invention, the transmission assembly is a belt transmission, and of course, the transmission assembly may also be a gear transmission, which is not limited herein.

Of course, in some embodiments, the fourth driving mechanism 60 may also be configured as a rack and pinion device, which is not limited herein.

It can be understood that, because the shape of curved die plate 34 is that one end has the cambered surface, and the other end has seted up a concave position to dodge tubular product and insert and establish, however, because this curved die plate 34's structural constraint, the interference of concave position for interior cutters will cut through feeding curved die plate 34 after, and the tubular product that cuts is longer, can't cut shorter tubular product.

It is conceivable that, in order to obtain a shorter pipe, in the technical solution of the present invention, when the third driving machine drives the first mounting seat 24 to move to the explorator 22 away from the curved template 34, the first driving mechanism 35 can drive the rotating member 32 to rotate clockwise, and further drive the fixing member 33, the curved template 34 and the second core rod 31 to rotate clockwise, so that the curved template arc 341 of the curved template 34 faces the inner cutter device, and the insertion end of the second core rod 31 faces away from the explorator 22, so that one end of the pipe can be connected with the second core rod 31 along the positioning through hole in a plug-in manner, and the other end of the pipe is cut by a predetermined length through the inner cutter device; after the cutting process is finished, the third driving mechanism 40 drives the first mounting seat 24 to move until the explorator 22 is tightly attached to the curved template 34, the first driving mechanism 35 drives the rotating part 32 to rotate anticlockwise, and further drives the fixing part 33, the curved template 34 and the second mandrel 31 to rotate anticlockwise, so that the curved template arc 341 of the curved template 34 faces the explorator 22, the other end of the pipe is connected with the first mandrel 21 in an inserting manner, and thus, the inserting and positioning of the two ends of the pipe are finished; then, the first driving mechanism 35 drives the rotating member 32 to rotate clockwise, and drives the fixing member 33, the bending die plate 34 and the second mandrel 31 to rotate clockwise, so as to complete the process of bending the tube to the curved surface 341 of the bending die. When the curved die cambered surface 341 is towards the inner cutter device, the inner cutter device can cut the pipe into short pipes so as to meet the production requirement of short bent pipes, and the pipe bending device is convenient to operate and stable in structure.

As shown in fig. 1 and 7 to 9, in a specific embodiment, the inner cutter device includes a second mounting seat 51, a cutter head 52, a rotary-cut blade 53, a supporting roller 54 and a first driving assembly 55, the second mounting seat 51 is slidably disposed on the frame 10, the cutter head 52 is rotatably mounted on the second mounting seat 51, the rotary-cut blade 53 is mounted on the cutter head 52, the supporting roller 54 is mounted on the cutter head 52 and disposed on the same side as the rotary-cut blade 53, the first driving assembly 55 is fixedly disposed on the second mounting seat 51, and the first driving assembly 55 can drive the cutter head 52 to rotate, so as to effectively avoid the generation of excess pipe material and material waste, and at the same time, avoid the generation of chips and protect the environment.

It should be noted that the first driving component 55 is a fifth driving motor 731, and the fifth driving motor 731 drives the blade head 52 to rotate through a belt transmission or a gear transmission.

It can be understood that the second mounting seat 51 is provided with an oil receiving cover 511 covering the cutter head 52, so as to prevent oil stains from dropping to the outside.

It can be understood that, in the embodiment of the present invention, the cutter head 52 has a channel through which the tube is inserted, the adjusting sleeve 56 is slidably sleeved on the cutter head 52, the second mounting seat 51 is provided with the pushing component 57 capable of driving the adjusting sleeve 56 to slide, the rotary cutting blade 53 is fixedly provided with the sliding block 58 and slidably provided on the cutter head 52 through the sliding block 58, one end of the sliding block 58 is provided with the first conical surface 581, the inner wall of the front end of the adjusting sleeve 56 is provided with the second conical surface 561, the first conical surface 581 is matched with the second conical surface 561, and the return spring is provided between the cutter head 52 and the sliding block 58 and capable of driving the sliding block 58 to return, so as to drive the rotary cutting. It should be noted that the support roller 54 is mounted in the same manner as the rotary cutter 53.

The cutting process of the inner cutter device comprises the following steps: in an initial state, the second conical surface 561 of the adjusting sleeve 56 is not in contact with the first conical surface 581 of the sliding block 58, at this time, the tube can penetrate through the tool bit 52 along the channel, and then the adjusting sleeve 56 is pushed to slide by the pushing component 57, the second conical surface 561 of the adjusting sleeve 56 extrudes towards the first conical surface 581 of the sliding block 58, so that the sliding block 58 is subjected to a force which points to the direction of the circle center along the diameter, so that the sliding block 58 slides along the diameter towards the direction of the circle center, and the rotary-cut blade 53 rolls around the circle center of the tool bit 52 on the outer wall of the tube, thereby realizing circular; the circular cutting contact is performed, the adjusting sleeve 56 is reset, the second taper surface 561 of the adjusting sleeve 56 is not in contact with the first taper surface 581 of the sliding block 58, and the rotary cutting blade 53 is reset by the reset spring. It is contemplated that the pushing assembly 57 is a motor and a pusher wheel cooperating with the motor.

It is understood that, in some embodiments, the inner cutter device may also be other devices, such as a saw blade device, and the like, which is not limited herein.

As shown in fig. 1 and 10, in some embodiments of the present invention, a feeding device 70 for feeding the tube to the inner cutter device is disposed on the frame 10, which is convenient to operate. In a specific embodiment, the feeding device 70 includes a first group of feeding units 71, a second group of feeding units 72 and a second driving assembly 73, the first group of feeding units 71 is slidably disposed on the frame 10 and located at one side of the inner cutter device, the second group of feeding units 72 is fixedly disposed on the frame 10 and located between the inner cutter device and the first group of feeding units 71, the first group of feeding units 71 and the second group of feeding units 72 are both provided with feeding channels 74 for conveying the pipes, the second driving assembly 73 is in transmission connection with the first group of feeding units 71, the second driving assembly 73 can drive the first group of feeding units 71 to move towards the second group of feeding units 72 so as to convey the pipes to the inner cutter device in time, the automatic feeding device 70 controls the feeding speed, ensures stable operation of the automatic pipe bender, is not easy to cause blocking or seizing, and selects a proper feeding speed, the feeding efficiency is improved. It will be appreciated that in some embodiments of the present invention, for ease of installation, the first set of feed units 71 is slidably disposed on the second mounting block 51; the second group of feeding units 72 is fixedly arranged on the second mounting seat 51; of course, the first group feeding unit 71 may also be slidably disposed on the frame 10, and the second group feeding unit 72 may also be fixedly disposed on the frame 10.

In some embodiments of the present invention, each of the first and

second feeding units

71 and 72 includes an upper clamping block 711, a lower clamping block 712, and a third driving assembly 713, the feeding channel 74 is disposed between the upper clamping block 711 and the lower clamping block 712, the third driving assembly 713 is in driving connection with the upper clamping block 711, and the third driving assembly 713 can drive the upper clamping block 711 to approach or depart from the lower clamping block 712.

It can be understood that, in order to facilitate the guiding movement of the first group of feeding units 71, a guide rod is disposed on the second mounting seat 51, the first group of feeding units 71 is slidably disposed on the guide rod, and the second group of feeding units 72 is sleeved on the guide rod and fixedly connected to the second mounting seat 51.

Of course, in some embodiments, the feeding device 70 may also include the first group of feeding units 71 and drive the first group of feeding units 71 to perform sliding feeding.

It should be noted that, as shown in fig. 1 and fig. 10, the second driving assembly 73 includes a fifth driving motor 731, a third lead screw 732 and a third lead screw nut 733, the fifth driving motor 731 is fixedly connected to the frame 10, the third lead screw 732 is in driving connection with the fifth driving motor 731, and the third lead screw nut 733 is fixedly mounted to the second feeding unit and is screwed with the third lead screw 732. The fifth driving motor 731 drives the third lead screw 732 to rotate, so that the third lead screw nut 733 is driven to drive the second feeding unit to reciprocate, the accuracy is high, and the transmission is stable. Of course, in some embodiments, the second driving assembly 73 may also be a rack and pinion transmission device, which is not limited herein.

In some embodiments of the present invention, each of the first group of feeding units 71 and the second group of feeding units 72 includes an upper clamping block 711, a lower clamping block 712, and a third driving assembly 713, the feeding channel 74 is disposed between the upper clamping block 711 and the lower clamping block 712, the third driving assembly 713 is in transmission connection with the upper clamping block 711, and the third driving assembly 713 can drive the upper clamping block 711 to approach or depart from the lower clamping block 712, so as to clamp and fix the tube, which is high in stability and convenient for conveying. It is understood that the third driving assembly 713 is a telescopic cylinder, but may be other devices, and is not limited herein.

It should be noted that, in some embodiments of the present invention, the first group of feeding units 71 clamps and conveys the tube to the second group of feeding units 72 and pushes the tube to the inner cutter device, the tube is conveyed to a predetermined length, and the first group of feeding units 71 is returned to the original position by the fourth driving mechanism 60 for the next conveyance, so that the operation is convenient and the transportation is stable.

Of course, in some embodiments, the first group feeding unit 71 and the second group feeding unit 72 may be configured in other structures, such as: the first group of feeding units 71 and the second group of feeding units 72 both comprise two clamping arms and two telescopic cylinders which are arranged oppositely, the feeding channel 74 is positioned between the two clamping arms, and one clamping arm is fixedly connected with one telescopic cylinder; alternatively, the first group feeding unit 71 and the second group feeding unit 72 may be adsorption type feeding devices, which is not limited herein.

As shown in fig. 1 to 4, in some embodiments of the present invention, the core pulling device 80 further includes a core pulling device 80, the core pulling device 80 includes a core pulling plate 81, a core pulling rod 82 and a core pulling cylinder 83, the core pulling plate 81 is slidably disposed on the frame 10, the core pulling rod 82 is fixedly disposed on the core pulling plate 81, one end of the core pulling rod 82 is fixedly connected with the first core rod 21, the core pulling cylinder 83 is fixedly disposed on the frame 10, and the core pulling cylinder 83 can drive the core pulling rod 82 to reciprocate through the core pulling plate 81. After the pipe is bent and formed, the core pulling device 80 drives the core rod to be separated from the pipe, the structure is simple, the pipe is rapidly stripped, and the production efficiency is improved.

It should be noted that, for convenience of installation, the core pulling device 80 is disposed on the frame 10 through the first mounting seat 24, and the core pulling device 80 is mounted on the first mounting seat 24.

As shown in fig. 1, it can be understood that, in some embodiments of the present invention, a feeding guide sleeve 11 and a rounding and straightening device 12 aligned with the feeding guide sleeve 11 are disposed on a rack 10, and the feeding guide sleeve 11 and the rounding and straightening device 12 are conventional in the art and will not be described herein.

It should be noted that, in some embodiments of the present invention, the frame 10 is provided with a control computer box 13 for controlling the operation of the automatic pipe bender.

The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims

1. Automatic bending machine has interior cutters, its characterized in that includes:

a frame (10);

a first assembly (20), the first assembly (20) being mounted on the machine frame (10), the first assembly (20) comprising a first mandrel (21) and a fence (22), the fence (22) being configured to slide relative to the machine frame (10);

a second assembly (30), the second assembly (30) comprising a second mandrel (31), the second mandrel (31) being rotatably mounted on the frame (10).

2. The automatic pipe bender according to claim 1, wherein the second assembly (30) includes a rotating member (32), a fixed member (33), a bending plate (34), and a first driving mechanism (35), the rotating member (32) is rotatably disposed on the frame (10), the fixed member (33) is fixedly connected to the rotating member (32), the bending plate (34) is fixedly connected to the fixed member (33), a bending arc surface (341) is disposed on the bending plate (34), the second core rod (31) is fixedly disposed on the fixed member (33), and the first driving mechanism (35) is in transmission connection with the rotating member (32).

3. The automated bender according to claim 1 or 2, characterized in that the first assembly (20) comprises a second drive mechanism (23), the second drive mechanism (23) being in driving connection with the former (22), the second drive mechanism (23) being capable of driving the former (22) towards the second assembly (30).

4. The automated pipe bender according to claim 2, wherein the first assembly (20) includes a second driving mechanism (23) and a first mounting seat (24), the first mounting seat (24) is slidably disposed on the frame (10), the cam (22) is slidably disposed on the first mounting seat (24), the second driving mechanism (23) is in transmission connection with the cam (22), and a third driving mechanism (40) capable of driving the first mounting seat (24) to approach or depart from the bending plate (34) is disposed on the frame (10).

5. The automated bender according to claim 1, wherein the inner cutter assembly is slidably disposed on the frame (10), and a fourth driving mechanism (60) is disposed on the frame (10), wherein the fourth driving mechanism (60) is capable of driving the inner cutter assembly to move toward the second assembly (30).

6. The automatic pipe bender according to claim 5, wherein the inner cutter device comprises a second mounting base (51), a cutter head (52), a rotary cutting blade (53), a supporting roller (54), and a first driving assembly (55), the second mounting base (51) is slidably disposed on the frame (10), the cutter head (52) is rotatably mounted on the second mounting base (51), the rotary cutting blade (53) is mounted on the cutter head (52), the supporting roller (54) is mounted on the cutter head (52) and disposed on the same side as the rotary cutting blade (53), the first driving assembly (55) is fixedly disposed on the second mounting base (51), and the first driving assembly (55) can drive the cutter head (52) to rotate.

7. The automated pipe bender according to claim 5 or 6, characterized in that a feeding device (70) for feeding the pipe material to the inner cutter device is arranged on the frame (10).

8. The automated bender according to claim 7, characterized in that the feeding device (70) comprises a first set of feeding units (71), a second set of feeding units (72) and a second driving assembly (73), the first group of feeding units (71) are arranged on the rack (10) in a sliding manner and positioned on one side of the inner cutter device, the second group of feeding units (72) are fixedly arranged on the frame (10) and positioned between the inner cutter device and the first group of feeding units (71), the first group of feeding units (71) and the second group of feeding units (72) are both provided with feeding channels (74) for conveying pipes, the second driving assembly (73) is in transmission connection with the first group of feeding units (71), the second drive assembly (73) is capable of driving the first group of feed units (71) towards the second group of feed units (72).

9. The automated bender according to claim 8, wherein the first set of feeding units (71) and the second set of feeding units (72) each comprise an upper clamping block (711), a lower clamping block (712), and a third driving assembly (713), the feeding channel (74) is disposed between the upper clamping block (711) and the lower clamping block (712), the third driving assembly (713) is in transmission connection with the upper clamping block (711), and the third driving assembly (713) can drive the upper clamping block (711) to approach or move away from the lower clamping block (712).

10. The automatic pipe bender according to claim 1, characterized by further comprising a core pulling device (80), wherein the core pulling device (80) comprises a core pulling plate (81), a core pulling pull rod (82) and a core pulling oil cylinder (83), the core pulling plate (81) is slidably arranged in the frame (10), the core pulling pull rod (82) is fixedly arranged in the core pulling plate (81), one end of the core pulling pull rod (82) is fixedly connected with the first core rod (21), the core pulling oil cylinder (83) is fixedly arranged in the frame (10), and the core pulling oil cylinder (83) can drive the core pulling pull rod (82) to reciprocate through the core pulling plate (81).