CN113976753A - Full-automatic pipe contracting equipment - Google Patents
Full-automatic pipe contracting equipment Download PDFInfo
- Publication number
- CN113976753A CN113976753A CN202111225169.3A CN202111225169A CN113976753A CN 113976753 A CN113976753 A CN 113976753A CN 202111225169 A CN202111225169 A CN 202111225169A CN 113976753 A CN113976753 A CN 113976753A
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- Prior art keywords
- pipe
- pipe reducing
- driving unit
- feeding device
- feeding
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- 239000000463 material Substances 0.000 claims abstract description 229
- 230000001603 reducing effect Effects 0.000 claims abstract description 126
- 230000007246 mechanism Effects 0.000 claims abstract description 76
- 238000002347 injection Methods 0.000 claims abstract description 50
- 239000007924 injection Substances 0.000 claims abstract description 50
- 238000007599 discharging Methods 0.000 claims abstract description 16
- 210000000078 claw Anatomy 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 25
- 230000008569 process Effects 0.000 abstract description 25
- 230000007547 defect Effects 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 48
- 238000002360 preparation method Methods 0.000 description 24
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000011143 downstream manufacturing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/04—Reducing; Closing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0278—Arrangement or mounting of spray heads
-
- 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
-
- 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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
-
- 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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/12—Edge-curling
-
- 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
- B21D43/003—Positioning devices
-
- 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
- B21D43/006—Feeding elongated articles, such as tubes, bars, or profiles
-
- 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
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/05—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
-
- 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
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
- B21D43/105—Manipulators, i.e. mechanical arms carrying a gripper element having several degrees of freedom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
Abstract
The utility model discloses full-automatic pipe reducing equipment which comprises a machine table, a feeding device, a first rotary feeding device, a multi-stage pipe reducing machine, a second rotary feeding device and a discharging device, wherein the feeding device, the first rotary feeding device, the multi-stage pipe reducing machine, the second rotary feeding device and the discharging device are arranged on the machine table; walk material device department and still be equipped with the grating ruler measuring mechanism who is used for measuring tubular product length and be used for the fueling injection mechanism for tubular product fueling injection, multistage draw machine includes a plurality of draw devices and is used for carrying the material device of removing of tubular product, realizes the removal of tubular product between a plurality of draw devices through removing the material device, carries out multistage draw through a plurality of draw devices to tubular product in grades. The utility model can realize the full automation of the whole pipe reducing process, namely, realize the automatic, stable and continuous pipe reducing (also called necking) of the pipe, and reduce the pipe reducing for many times, so that the phenomenon of deformation and bending of the pipe can not occur in the whole pipe reducing process, the defects are reduced, and the pipe reducing efficiency and quality are ensured.
Description
Technical Field
The utility model relates to the technical field of mechanical equipment, in particular to automatic pipe reducing equipment.
Background
In the prior art, special requirements are often required for connecting fixed pipe fitting ports, for example, the pipe fitting ports are shrunk to form a reducing pipe orifice, the pipe fitting ports are convenient to weld and fix with other pipe orifice workpieces, such processing is realized, the pipe fitting ports need to be compressed by using a mold with a horn-shaped orifice, such pipe fittings need to be processed in batches, special equipment is needed to realize the processing, for example, a pipe reducing machine is used, the effects of the existing pipe reducing machine on pipe reducing (the pipe is gradually thinned) and pipe orifice flanging (the inward flanging of the pipe orifice of the pipe is not ideal), the pipe is easy to deform in the pipe reducing process, and the feeding, material conveying, pipe reducing and blanking processes in the pipe reducing process are not completely automated, the efficiency is influenced, and if the automation degree is low, the problems of high labor cost are brought.
The utility model aims to provide full-automatic pipe reducing equipment capable of overcoming the defects.
Disclosure of Invention
The utility model mainly solves the technical problem of providing full-automatic pipe reducing equipment, which can realize full automation of the whole pipe reducing process, namely automatic, stable and continuous pipe reducing (also called necking) of a pipe is realized through the structural design of a material feeding device, a first rotary feeding device, a multi-stage pipe reducing machine, a second rotary feeding device, a discharging device and the like, and the pipe is reduced for multiple times, so that the phenomenon of deformation and bending of the pipe cannot occur in the whole pipe reducing process, the defects are reduced, and the pipe reducing efficiency and quality are ensured.
In order to solve the technical problems, the utility model adopts a technical scheme that: the full-automatic pipe reducing equipment comprises a machine table, a feeding device, a first rotary feeding device, a multi-stage pipe reducing machine, a second rotary feeding device and a discharging device, wherein the feeding device, the first rotary feeding device, the multi-stage pipe reducing machine, the second rotary feeding device and the discharging device are arranged on the machine table;
the first rotary feeding device is positioned at the downstream of the feeding device, the multi-stage pipe reducing machine is positioned at the downstream of the first rotary feeding device, the second rotary feeding device is positioned at the downstream of the multi-stage pipe reducing machine, and the blanking device is positioned at the downstream of the second rotary feeding device;
the feeding device is also provided with a grating ruler measuring mechanism for measuring the length of the pipe and an oil injection mechanism for injecting oil to the pipe, and the oil injection mechanism is positioned at the downstream of the grating ruler measuring mechanism;
the multi-stage pipe reducing machine comprises a plurality of pipe reducing devices and a material conveying device for conveying pipes, the pipes are moved among the plurality of pipe reducing devices through the material conveying device, and the pipes are subjected to multi-stage pipe reducing through the plurality of pipe reducing devices;
the pipe reducing equipment further comprises a control system, and the feeding device, the first rotary feeding device, the pipe reducing device, the material moving device, the second rotary feeding device, the blanking device, the grating ruler measuring mechanism and the oil spraying mechanism are respectively and electrically connected with the control system.
In order to solve the technical problems, the utility model adopts the further technical scheme that: the feeding device comprises a feeding frame, a material ejecting frame and a material ejecting driving unit capable of driving the material ejecting frame to ascend and descend, and the moving direction of the pipe is defined as the X direction;
the feeding frame is provided with a plurality of feeding plates, each feeding plate is provided with a plurality of feeding grooves for placing the pipes, a connecting part is arranged between every two adjacent feeding grooves of the same feeding plate, and the upper surface of each connecting part is a first inclined surface which is inclined downwards from back to front;
the material ejecting frame is provided with a material ejecting plate, the material ejecting plate is provided with a plurality of material ejecting grooves, and the upper surface of each material ejecting groove is a second inclined surface which is inclined downwards from back to front;
when the material ejecting frame is driven to ascend through the material ejecting driving unit to eject the pipes, the pipes can slide forwards along the second inclined plane, and then the pipe is driven to enter the next material conveying groove of the material conveying plate to convey the pipes while the material ejecting frame is driven to descend through the material ejecting driving unit.
Further, the grating ruler measuring mechanism comprises a grating ruler, a first stop block, a second stop block, a baffle and a first stop block driving unit capable of driving the first stop block to move in the Y direction, the grating ruler and the second stop block are both located on the baffle, the first stop block is driven by the first stop block driving unit to move axially along the pipe, the pipe is clamped from two ends through the matching of the first stop block and the second stop block, and the length of the pipe is measured through the grating ruler.
The oil injection mechanism comprises an oil injection nozzle, a material pushing block, a sensor, an oil injection seat, a spring and an oil injection driving unit capable of driving the oil injection seat to move along the Y direction, wherein the oil injection nozzle and the sensor are mounted on the oil injection seat, and the spring is located between the oil injection seat and the material pushing block.
Furthermore, the first rotary feeding device and the second rotary feeding device both comprise feeding clamping jaws, first rotary driving units capable of driving the feeding clamping jaws to rotate, second rotary driving units capable of driving the feeding clamping jaws to rotate and feeding driving units capable of driving the feeding clamping jaws to lift, and the pipes are rotated to a vertical state from a horizontal state or rotated to a horizontal state from a vertical state through the cooperation of the first rotary driving units and the second driving units.
The material conveying device comprises a material conveying clamping jaw, an X-direction material conveying driving unit capable of driving the material conveying clamping jaw to translate in the X direction, a Y-direction material conveying driving unit capable of driving the material conveying clamping jaw to translate in the Y direction, and a Z-direction material conveying driving unit capable of driving the material conveying clamping jaw to translate in the Z direction;
each pipe reducing device comprises a positioning clamping mechanism for clamping a pipe, a pipe reducing mechanism and a pipe reducing lifting driving unit capable of driving the pipe reducing mechanism to lift, and the pipe reducing mechanism is driven to descend to reduce the pipe through the pipe reducing lifting driving unit.
Furthermore, the positioning and clamping mechanism comprises a lower bearing seat, a clamping gas claw and a leaning block structure, wherein the pipe is placed on the lower bearing seat, the clamping gas claw stands on the lower bearing seat through the clamping gas claw, and the pipe is positioned and fixed at a radial relative position through the leaning block structure.
The pipe reducing mechanism comprises a pressure head and a forming die, wherein the middle position of the pressure head is a cavity, the section of the cavity is in a horn mouth shape with a small upper hole diameter and a large lower hole diameter, the forming die is arranged in the cavity, and the shape of the forming die is matched with that of the cavity.
The pipe reducing mechanism further comprises a connecting sleeve, a thimble, a top head and a movable plate, wherein the connecting sleeve is installed above the pressure head, the thimble is installed at the upper end of the forming die, the movable plate is installed above the thimble, the top head is installed above the movable plate, and the movable plate is driven to move through the movement of the top head, so that the thimble and the forming die are driven to move.
The blanking device comprises a material supporting frame, a material guiding frame and a material supporting driving unit capable of driving the material supporting frame to ascend and descend, wherein a material supporting surface of the material supporting frame is an inclined surface inclined downwards in an inclined manner, the upper surface of the material guiding frame is a material guiding surface, and the material guiding surface is also an inclined surface inclined downwards in an inclined manner;
the material supporting frame is driven to ascend through the material supporting driving unit and is in butt joint with the material guiding frame, so that the pipe located on the material supporting frame slides to the material guiding frame and slides down along the material guiding surface frame of the material guiding frame.
The utility model has the beneficial effects that:
the length of the pipe is measured by the grating ruler through feeding of the feeding device, and if the pipe is unqualified in size, the pipe is removed through matching with the material pushing driving mechanism; if the size of the pipe is qualified, the oil spraying mechanism sprays oil to the pipe, then the first rotary feeding device moves the pipe to a first preparation station, then the pipe is transferred to a first pipe shrinking device through a material moving device to be subjected to first pipe shrinking, then the material moving device moves the pipe subjected to the first pipe shrinking to a second pipe sinking device to be subjected to second pipe shrinking, then the material moving device moves the pipe subjected to the second pipe shrinking to a second preparation station, the second rotary feeding device places the pipe in a discharging device, and the pipe is moved to a downstream process or a material receiving device through the discharging device; therefore, the equipment can realize the full automation of the whole pipe reducing process, namely, the automatic, stable and continuous pipe reducing (also called necking) of the pipe is realized, and the pipe is subjected to pipe reducing for many times, so that the phenomenon that the pipe deforms and bends in the whole pipe reducing process can not occur, the defects are reduced, and the pipe reducing efficiency and quality are ensured;
moreover, two groups of ejection driving units can be arranged on the material conveying device, and the ejection driving units can simultaneously drive the ejection frame to lift, so that the stability of the ejection process can be improved, and shaking and the like can be avoided;
furthermore, the positioning and clamping mechanism of the pipe reducing device comprises a lower bearing seat, a clamping gas claw and a leaning block structure, wherein the leaning block structure comprises a leaning block and a magnet arranged on the leaning block, the pipe is supported by the clamping gas claw so that the pipe can stand on the lower bearing seat and can not fall down, namely the clamping gas claw does not clamp the pipe immovably or tightly clamp the pipe, and then the pipe is adsorbed and tightly leaned against the leaning block through the magnet, so that when the pipe reducing mechanism is pressed down to reduce the pipe, the pipe has a certain buffering process or effect in the height direction, and can not deform or even bend due to sudden pressing down by a strong force of the pipe reducing mechanism, the bad pipe reducing effect is reduced, and the pipe reducing precision, the pipe reducing quality and the like are ensured;
in the blanking device, the material supporting frame is driven to ascend through the material supporting driving unit and is butted with the material guiding frame, so that the pipe positioned on the material supporting frame slides to the material guiding frame and slides down along the material guiding surface frame of the material guiding frame; therefore, the pipe feeding device is simple in structure and ingenious in design, can be matched with the upstream process of the pipe reducing machine, can rotate a pipe for multiple times and place the pipe on the material supporting frame, drives the material supporting frame to ascend through the material supporting driving unit and is in butt joint with the material guiding frame, achieves automatic, stable and continuous discharging of the pipe, and accelerates the full-automatic step and process of the pipe reducing machine.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is an external view (from an angle) of the present invention;
FIG. 2 is a schematic view of the structure of the present invention (from another perspective);
FIG. 3 is a schematic structural view of the feeding device and the first rotary feeding device of the present invention;
FIG. 4 is one of the external views (from an angle) of the present invention;
FIG. 5 is a second external view (from another perspective) of the present invention;
FIG. 6 is one of the side views of the present invention;
FIG. 7 is a schematic structural view of the present invention (with parts not installed for ease of illustration);
FIG. 8 is a second side view of the present invention (with some parts not installed for ease of illustration of the structure);
FIG. 9 is a schematic structural diagram of a grating ruler measuring mechanism of the present invention;
FIG. 10 is a schematic view of the structure of the oil injection mechanism of the present invention;
FIG. 11 is a side view of the fuel injection mechanism of the present invention;
FIG. 12 is a schematic view of the first rotary feeder of the present invention;
FIG. 13 is an external view of the multi-stage draw machine of the present invention;
FIG. 14 is a front view of the multi-stage draw machine of the present invention;
FIG. 15 is a schematic view of the material mover of the present invention;
FIG. 16 is a schematic view of the positioning fixture of the present invention;
FIG. 17 is an exploded view of the positioning fixture of the present invention;
FIG. 18 is a schematic view of the structure of the pipe reducing mechanism and pipe reducing elevation drive unit of the present invention;
FIG. 19 is a schematic view of a tube contracting mechanism according to the present invention;
FIG. 20 is one of cross-sectional views of a pipe contracting mechanism of the present invention (the lower end face of the molding surface is a flat surface);
FIG. 21 is a second cross-sectional view of the pipe contracting mechanism of the present invention (the lower end surface of the molding surface is a curved surface);
FIG. 22 is a schematic view of the process for manufacturing the tube of the present invention;
fig. 23 is one of the external views (from an angle) at the blanking device of the present invention;
FIG. 24 is a second external view (from another perspective) of the blanking apparatus of the present invention;
FIG. 25 is a schematic view of the blanking unit of the present invention;
FIG. 26 is an exploded view of the blanking unit of the present invention;
the parts in the drawings are marked as follows:
the tube 100, the machine table 200, the first preparation station 300 and the second preparation station 400;
the material pushing device comprises a material feeding frame 101, a material feeding plate 1011, a material feeding groove 10111, a connecting part 10112, a material placing seat 10113, a material pushing frame 102, a material pushing plate 1021, a material pushing groove 10211, a material pushing seat 1022, a material pushing driving unit 103, a material pushing driving mechanism 104, a material pushing block 1041 and a material pushing driving unit 1042;
a material conveying device 50, a material conveying gripper 501, an X-direction conveying driving unit 502, a Y-direction conveying driving unit 503, and a Z-direction conveying driving unit 504;
a grating ruler measuring mechanism 6, a grating ruler 601, a first stop block 602, a second stop block 603, a baffle 604 and a first stop block driving unit 605;
the oil injection mechanism 70, the oil injection nozzle 701, the material pushing block 702, the sensor 703, the oil injection seat 704, the spring 705 and the oil injection driving unit 706;
the pipe contracting device comprises a first pipe contracting device 80, a positioning clamping mechanism 801, a lower bearing seat 8011, a leaning block 80131, a magnet 80132, a clamping air claw 8012, a leaning block structure 8013, a pipe contracting mechanism 802, a pressure head 8021, a forming die 8022, a connecting sleeve 8023, a thimble 8024, a thimble 8025, a movable plate 8026 and a pipe contracting lifting driving unit 803;
a second tube reducing device 90;
the device comprises a first rotary feeding device 20, a feeding clamping jaw 201, a first rotary driving unit 202, a second rotary driving unit 203 and a feeding driving unit 204;
the blanking device 40, a material supporting frame 401, a material supporting bottom plate 4011, a material supporting sheet 4012, a material guiding frame 402, a material guiding surface 4021, a reinforcing rib 4022, a material supporting driving unit 403 and a supporting frame 404;
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and the present invention will be described in detail with reference to the accompanying drawings. The utility model may be embodied in other different forms, i.e. it is capable of various modifications and changes without departing from the scope of the utility model as disclosed.
Example (b): a full-automatic pipe reducing device is shown in fig. 1 and fig. 2, and comprises a machine table 200, a feeding device 10, a first rotary feeding device 20, a multi-stage pipe reducing machine, a second rotary feeding device 30 and a discharging device 40, wherein the feeding device 10, the first rotary feeding device 20, the multi-stage pipe reducing machine, the second rotary feeding device 30 and the discharging device 40 are arranged on the machine table;
the first rotary feeding device is positioned at the downstream of the feeding device, the multi-stage pipe reducing machine is positioned at the downstream of the first rotary feeding device, the second rotary feeding device is positioned at the downstream of the multi-stage pipe reducing machine, and the blanking device is positioned at the downstream of the second rotary feeding device;
a grating ruler measuring mechanism 60 for measuring the length of the pipe and an oil injection mechanism 70 for injecting oil to the pipe are further arranged at the feeding device, and the oil injection mechanism is positioned at the downstream of the grating ruler measuring mechanism;
the multi-stage pipe reducing machine comprises a plurality of pipe reducing devices and a material conveying device 50 for conveying the pipe 100, the pipe is moved among the pipe reducing devices through the material conveying device, and the pipe is subjected to multi-stage pipe reducing through the pipe reducing devices;
in this embodiment, the pipe reducing means comprises two and is defined as a first pipe reducing means 80 and a second pipe reducing means 90, the second pipe reducing means being located downstream of the first pipe reducing means.
The multistage pipe reducing machine further comprises a first preparation station 300 and a second preparation station 400, the first preparation station is located at the upstream of the first pipe reducing device, the second preparation station is located at the downstream of the second pipe reducing device, and the pipes are moved among the first preparation station, the first pipe reducing device, the second pipe reducing device and the second preparation station through the conveying of the conveying device. In this embodiment, the first preparation station and the second preparation station are both used for positioning the tube by using a pneumatic claw, but the present invention is not limited thereto.
The pipe reducing equipment further comprises a control system 110, and the feeding device, the first rotary feeding device, the pipe reducing device, the material moving device, the second rotary feeding device, the blanking device, the grating ruler measuring mechanism and the oil spraying mechanism are respectively and electrically connected with the control system.
In this embodiment, the full-automatic pipe reducing apparatus further includes a lubricating oil station 120 and an electric cabinet 130.
As shown in fig. 3 to 8, the feeding device includes a feeding frame 101, an ejecting frame 102, and an ejecting driving unit 103 capable of driving the ejecting frame to move up and down, and defines a moving direction of the tube as an X direction;
the feeding frame is provided with a plurality of feeding plates 1011, each feeding plate is provided with a plurality of feeding grooves 10111 for placing the pipes 100, a connecting part 10112 is arranged between the adjacent feeding grooves of the same feeding plate, and the upper surface of the connecting part is a first inclined surface which is inclined downwards from back to front;
the ejector rack is provided with an ejector plate 1021, the ejector plate is provided with a plurality of ejector grooves 10211, and the upper surface of each ejector groove is a second inclined surface which is inclined downwards from back to front;
when the material ejecting frame is driven to ascend through the material ejecting driving unit to eject the pipes, the pipes can slide forwards along the second inclined plane, and then the pipe is driven to enter the next material conveying groove of the material conveying plate to convey the pipes while the material ejecting frame is driven to descend through the material ejecting driving unit.
In this embodiment, same flitch of walking has three to walk the material recess, and same flitch is equipped with two liftout recesses. The quantity of the feeding grooves and the ejection grooves can be set according to the moving stroke of the pipe.
The bottom of the feeding groove and the low point of the ejection groove of the ejector plate are arranged in a staggered mode in the X direction.
(i.e., it is on a different Y axis.)
As shown in fig. 3 to 8, each feeding groove is provided with a discharging seat 10113, and the surface of each discharging seat is matched with the pipe shape of the pipe. In this embodiment, the tubular product is the pipe, the surface of blowing seat is the cambered surface.
The ejector plate is provided with a plurality of ejector plates, and the ejector plates and the feed plates are arranged at intervals.
In this embodiment, the flitch that pushes up is equipped with 3, it is equipped with 4 to walk the flitch, and the quantity of walking flitch and ejector plate can set up according to the length of tubular product.
As shown in fig. 3 to 8, the ejector rack further includes an ejector seat 1022, and the ejector plate is mounted to the ejector seat.
The liftout drive unit is equipped with two sets.
In this embodiment, the material ejecting driving unit is driven by an air cylinder. Two groups are arranged, so that the stability of the material ejecting process is improved, and shaking and the like are avoided.
As shown in fig. 3 to 8, a material pushing driving mechanism 104 is disposed on one side of the material pushing frame, and the material pushing driving mechanism includes a material pushing block 1041 and a material pushing driving unit 1042 capable of driving the material pushing block to ascend and descend.
As shown in fig. 9, the grating scale measuring mechanism 60 includes a grating scale 601, a first block 602, a second block 603, a barrier 604, and a first block driving unit 605 capable of driving the first block to move in the Y direction, where the grating scale and the second block are both located on the barrier, the first block driving unit drives the first block to move axially along the pipe, the pipe is clamped from both ends by the cooperation of the first block and the second block, and the length of the pipe is measured by the grating scale.
In this embodiment, the first block driving unit is driven by a cylinder, but is not limited thereto.
The first stop block is positioned at the driving end of the first stop block driving unit, and the second stop block is positioned at the side of the material moving frame far away from the first stop block driving unit.
As shown in fig. 10 and 11, the oil injection mechanism 70 includes an oil injection nozzle 701, a plunger block 702, a sensor 703, an oil injection seat 704 to which the oil injection nozzle and the sensor are mounted, a spring 705 that is located between the oil injection seat and the plunger block, and an oil injection driving unit 706 that can drive the oil injection seat to move in the Y direction. If the length of the pipe detected by the grating ruler measuring mechanism is qualified, the oil injection driving unit drives the oil injection seat to move, so that the pipe is tightly propped by the material pushing block, meanwhile, the pipe can compress the spring so that the material pushing block is sensed by the sensor, and then the oil injection nozzle performs oil injection treatment on the pipe;
if the length of the pipe detected by the grating ruler measuring mechanism is not qualified, the material pushing driving unit drives the material pushing block to descend, and meanwhile, the oil injection driving unit drives the oil injection seat to move, so that the material pushing block pushes the pipe out axially, for example, the pipe enters an inclined waste material track matched with the material ejecting groove.
As shown in fig. 12, each of the first rotary feeding device 20 and the second rotary feeding device 30 includes a feeding jaw 201, a first rotary driving unit 202 capable of driving the feeding jaw to rotate, a second rotary driving unit 203 capable of driving the feeding jaw to rotate, and a feeding driving unit 204 capable of driving the feeding jaw to ascend and descend, and the first rotary driving unit and the second driving unit cooperate to rotate the pipe from the horizontal state to the vertical state or from the vertical state to the horizontal state.
In this embodiment, the first rotary feeding device is used for rotating the pipe from the horizontal state to the vertical state, and specifically: the first rotary driving unit rotates the pipe from the Y direction to the X direction, and the second rotary driving unit rotates the pipe from the Y direction to the Z direction; the second rotary feeding device is used for rotating the pipe from a vertical state to a horizontal state, and specifically comprises: the second rotary driving unit rotates the pipe from the Z direction to the Y direction, and the first rotary driving unit rotates the pipe from the Y direction to the X direction.
The first and second rotary drive units are rotary cylinders. The feeding clamping jaw is a pneumatic clamping jaw.
As shown in fig. 13 to 22, the material handling device 50 includes a material handling jaw 501, an X-direction material handling driving unit 502 capable of driving the material handling jaw X to translate, a Y-direction material handling driving unit 503 capable of driving the material handling jaw Y to translate, and a Z-direction material handling driving unit 504 capable of driving the material handling jaw Z to translate; in this embodiment, the X-direction conveying driving unit, the Y-direction conveying driving unit, and the Z-direction conveying driving unit are all driven by air cylinders, but are not limited thereto. The material carrying clamping jaw is a pneumatic clamping jaw.
In this embodiment, three material conveying claws are provided. The distance between the adjacent material handling clamping jaws in the X direction is equal to the distance between the two pipe reducing devices, the distance between the first preparation station and the first pipe reducing device and the distance between the second pipe reducing device and the second preparation station.
Each pipe reducing device comprises a positioning clamping mechanism 801 for clamping a pipe, a pipe reducing mechanism 802 and a pipe reducing lifting driving unit 803 capable of driving the pipe reducing mechanism to lift, and the pipe reducing mechanism is driven to descend to reduce the pipe through the pipe reducing lifting driving unit.
As shown in fig. 13 to 22, the positioning and clamping mechanism 801 includes a lower bearing seat 8011 on which the tube is placed, a clamping gas claw 8012 on which the clamping gas claw stands, and a block structure 8013 on which the tube is positioned and fixed in radial relative position.
In this embodiment, the backup block structure includes a backup block 80131 and a magnet 80132 disposed on the backup block, where the surface of the backup block contacting the tube is an arc surface, and the tube is attracted and abutted against the backup block by the magnet.
As shown in fig. 13 to 22, the pipe contracting mechanism 802 includes a pressing head 8021 and a forming die 8022, the pressing head has a cavity at a middle position, the cavity has a flared section with a small upper aperture and a large lower aperture, the forming die is mounted in the cavity, and the forming die has a shape matching the shape of the cavity.
As shown in fig. 13 to 22, the pipe contracting mechanism further includes a connecting sleeve 8023, an ejector pin 8024, a top head 8025 and a movable plate 8026, the connecting sleeve is mounted above the pressing head, the ejector pin is mounted at the upper end of the forming die, the movable plate is mounted above the ejector pin, the top head is mounted above the movable plate, and the movable plate is driven by the movement of the top head, so that the ejector pin and the forming die are driven to move.
The pipe contracting lifting driving unit is a hydraulic cylinder, and the hydraulic cylinder is a primary cylinder and a secondary cylinder. In this embodiment, the hydraulic cylinder is powered by a servo hydraulic system. The master-slave oil cylinder, the double-piston oil cylinder and the large oil cylinder sleeve are particularly suitable for occasions with limited installation space. The stroke can be increased, and no air is used as a transmission medium, so that the device can be called a primary cylinder and a secondary cylinder. Two piston rods and two pistons. The primary and secondary cylinders are in the prior art, and the working process is not repeated.
As shown in fig. 23 to 26, the blanking device 40 includes a material supporting frame 401, a material guiding frame 402, and a material supporting driving unit 403 capable of driving the material supporting frame to ascend and descend, a material supporting surface of the material supporting frame is an inclined surface inclined downward, an upper surface of the material guiding frame is a material guiding surface 4021, and the material guiding surface is also an inclined surface inclined downward;
the material supporting frame is driven to ascend through the material supporting driving unit and is in butt joint with the material guiding frame, so that the pipe located on the material supporting frame slides to the material guiding frame and slides down along the material guiding surface frame of the material guiding frame. In this embodiment, the rotary feeding device is used for rotating the pipe from a vertical state to a horizontal state, and specifically is: the second rotary driving unit rotates the pipe from the Z direction to the Y direction, and the first rotary driving unit rotates the pipe from the Y direction to the X direction.
The first and second rotary drive units are rotary cylinders.
The feeding clamping jaw is a pneumatic clamping jaw.
As shown in fig. 23 to 26, the material supporting frame includes a material supporting bottom plate 4011 and a plurality of material supporting sheets 4012, all the material supporting sheets are arranged at intervals along the length direction of the material supporting bottom plate, the upper surface of each material supporting sheet is an inclined surface, and the feeding clamping jaw can be inserted into a space between adjacent material supporting sheets 4012.
As shown in fig. 23 to 26, the guide frame is provided with reinforcing ribs 4022 for reinforcing strength.
As shown in fig. 23 to 26, the lifting mechanism further includes a support frame 404, which is located below the material holder.
The material supporting driving unit is a cylinder, but is not limited thereto.
The working principle and the working process of the utility model are as follows:
starting equipment, placing a pipe in a feeding device by an upstream process or manually under the action of a control system, feeding the pipe through the feeding device, measuring the size of the pipe by a grating ruler measuring mechanism, driving a first stop block to move along the axial direction of the pipe through a first stop block driving unit, clamping the pipe from two ends through the matching of the first stop block and a second stop block, measuring the length of the pipe through a grating ruler, and discharging the pipe through the matching of the grating ruler and a material supporting driving mechanism if the size is unqualified; if the size of the pipe is qualified, the oil spraying mechanism sprays oil to the pipe, then the first rotary feeding device moves the pipe to a first preparation station, then the pipe is transferred to a first pipe shrinking device through a material moving device to be subjected to first pipe shrinking, then the material moving device moves the pipe subjected to the first pipe shrinking to a second pipe sinking device to be subjected to second pipe shrinking, then the material moving device moves the pipe subjected to the second pipe shrinking to a second preparation station, the second rotary feeding device places the pipe in a discharging device, and the pipe is moved to a downstream process or a material receiving device through the discharging device;
the working process of the feeding device is as follows:
as shown in fig. 8, taking the pipe moving from the a1 position to the a2 position as an example for description, the pipe is placed into the a1 position of the material feeding plate through an upstream process or manually, then the ejector driving unit drives the ejector plate to ascend, the ejector groove of the ejector plate ejects the pipe, and while the pipe is ejected, the pipe slides forward along the second inclined plane, then the ejector rack is driven to descend by the ejector driving unit, and while the ejector rack descends, the pipe enters the next material feeding groove (here, the a2 position) of the material feeding plate, so that the material feeding of the pipe is realized.
The specific working process of the grating ruler measuring mechanism and the oil injection mechanism is as follows:
the first stop block is driven by the first stop block driving unit to move axially along the pipe, the pipe is clamped from two ends through the matching of the first stop block and the second stop block, the length of the pipe is measured through the grating ruler, if the pipe is qualified in size, the oil injection driving unit drives the oil injection seat to move, so that the pipe is abutted by the material pushing block, meanwhile, the pipe can compress the spring to enable the material pushing block to be sensed by the sensor, and then the oil injection nozzle performs oil injection treatment on the pipe; if the length of the pipe detected by the grating ruler measuring mechanism is not qualified, the material pushing driving unit drives the material pushing block to descend, and meanwhile, the oil injection driving unit drives the oil injection seat to move, so that the material pushing block pushes the pipe out axially, for example, the pipe enters an inclined waste material track matched with the material ejecting groove.
The working process of the multistage pipe reducing machine is as follows:
starting the pipe reducing machine, defining the material handling clamping jaws of the material handling device as a first material handling clamping jaw, a second material handling clamping jaw and a third material handling clamping jaw in turn from right to left according to the direction shown in fig. 15, driving the first material handling clamping jaw to a first preparation station by an X-direction material handling driving unit, a Y-direction material handling driving unit and a Z-direction material handling driving unit, clamping a pipe to be processed, and loosening a gas jaw at the first preparation station, then the X-direction material moving driving unit, the Y-direction material moving driving unit and the Z-direction material moving driving unit drive the first material moving clamping jaw to place the pipe to be processed on a lower bearing seat of the first pipe reducing device (in the process, the third material moving clamping jaw moves the pipe processed by the second pipe reducing device to a second preparation station to wait for subsequent processing, and meanwhile, the pipe subjected to primary pipe reducing at the first pipe reducing device is moved to the second pipe reducing device); then the pipe is clamped by a clamping gas claw of the first pipe contracting device, meanwhile, the pipe is sucked by a magnet and is tightly leaned against the leaning block, then the pipe contracting lifting driving unit drives the pipe contracting mechanism to descend, the upper end of the pipe is contracted once (or preliminarily) through the pressure head and the forming die (as shown in figure 22), and then the forming die is driven to descend continuously through the primary and secondary cylinders, so that demoulding is realized; then, similar to the above process, the second material handling clamping jaw moves the tube after the tube is contracted for the first time from the first tube contracting device to the second tube contracting device, as shown in fig. 22, the tube is contracted for the second time (according to the product requirement, only the tube can be contracted, and the tube opening can be curled or flanged inwards), the first tube contracting device and the second tube contracting device can adopt the same pressure head and forming die, the tube contracting for two times with different degrees can be realized by controlling the descending strokes of the pressure head and the forming die, and finally the third material handling clamping jaw moves the finished product to the second preparation station to wait for the subsequent process;
the specific working process of the second rotary feeding device and the blanking device is as follows:
as shown in fig. 23, the first rotary driving unit and the second rotary driving unit rotate to make the feeding clamping jaw move to above the second preparation station 400 (at this time, the pipe is in a vertical state), then the feeding driving unit drives the feeding clamping jaw to descend to a position, the feeding clamping jaw clamps the pipe, then the clamping jaw of the second preparation station 400 is loosened, then the feeding driving unit drives the feeding clamping jaw to ascend, the second rotary driving unit rotates the pipe from the Z direction to the Y direction, the first rotary driving unit rotates the pipe from the Y direction to the X direction, then the feeding driving unit drives the feeding clamping jaw to descend to a position (the distance between the second preparation station 400 and the rotary feeding device is matched with the length of the feeding clamping jaw and the mounting seat of the first rotary driving unit, so that the feeding clamping jaw is just located above the second preparation station or the material support frame after two rotations), and the pipe is placed on the material support frame, then the material supporting driving unit drives the material supporting frame to ascend, in the process, the pipe can slide downwards along the inclined plane of the material supporting frame in an inclined mode until the lower point of the upper surface of the material supporting frame is higher than the material guiding surface of the material guiding frame, the pipe slides into the material guiding surface and slides downwards in an inclined mode, and the pipe flows into a material receiving device placed at the position of the material guiding frame;
meanwhile, the first rotary driving unit and the second rotary driving unit rotate reversely, and the next action process is repeated.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the specification and the drawings, or other related technical fields, are encompassed by the present invention.
Claims (10)
1. The utility model provides a full-automatic pipe reducing equipment which characterized in that: the device comprises a machine table (200), and a feeding device (10), a first rotary feeding device (20), a multi-stage pipe reducing machine, a second rotary feeding device (30) and a discharging device (40) which are arranged on the machine table;
the first rotary feeding device is positioned at the downstream of the feeding device, the multi-stage pipe reducing machine is positioned at the downstream of the first rotary feeding device, the second rotary feeding device is positioned at the downstream of the multi-stage pipe reducing machine, and the blanking device is positioned at the downstream of the second rotary feeding device;
a grating ruler measuring mechanism (60) for measuring the length of the pipe and an oil injection mechanism (70) for injecting oil to the pipe are further arranged at the feeding device, and the oil injection mechanism is positioned at the downstream of the grating ruler measuring mechanism;
the multi-stage pipe reducing machine comprises a plurality of pipe reducing devices and a material conveying device (50) used for conveying a pipe (100), the pipe is moved among the plurality of pipe reducing devices through the material conveying device, and the pipe is subjected to multi-stage pipe reducing in a grading manner through the plurality of pipe reducing devices;
the pipe reducing equipment further comprises a control system (110), and the feeding device, the first rotary feeding device, the pipe reducing device, the material moving device, the second rotary feeding device, the blanking device, the grating ruler measuring mechanism and the oil spraying mechanism are respectively and electrically connected with the control system.
2. The full-automatic pipe reducing apparatus according to claim 1, wherein: the feeding device comprises a feeding frame (101), a material ejecting frame (102) and a material ejecting driving unit (103) capable of driving the material ejecting frame to ascend and descend, and the moving direction of the pipe is defined as the X direction;
the feeding frame is provided with a plurality of feeding plates (1011), each feeding plate is provided with a plurality of feeding grooves (10111) for placing the pipes (100), a connecting part (10112) is arranged between every two adjacent feeding grooves of the same feeding plate, and the upper surface of each connecting part is a first inclined surface which is inclined downwards from back to front;
the ejector rack is provided with an ejector plate (1021) which is provided with a plurality of ejector grooves (10211), and the upper surface of each ejector groove is a second inclined surface which is inclined downwards from back to front;
when the material ejecting frame is driven to ascend through the material ejecting driving unit to eject the pipes, the pipes can slide forwards along the second inclined plane, and then the pipe is driven to enter the next material conveying groove of the material conveying plate to convey the pipes while the material ejecting frame is driven to descend through the material ejecting driving unit.
3. The full-automatic pipe reducing apparatus according to claim 1, wherein: the grating ruler measuring mechanism (60) comprises a grating ruler (601), a first stop block (602), a second stop block (603), a baffle (604) and a first stop block driving unit (605) capable of driving the first stop block to move in the Y direction, the grating ruler and the second stop block are both located on the baffle, the first stop block is driven by the first stop block driving unit to move axially along a pipe, the pipe is clamped from two ends through the matching of the first stop block and the second stop block, and the length of the pipe is measured through the grating ruler.
4. The full-automatic pipe reducing apparatus according to claim 1, wherein: the oil injection mechanism (70) comprises an oil injection nozzle (701), a material pushing block (702), a sensor (703), an oil injection seat (704), a spring (705) and an oil injection driving unit (706) capable of driving the oil injection seat to move along the Y direction, wherein the oil injection nozzle and the sensor are installed on the oil injection seat, and the spring is located between the oil injection seat and the material pushing block.
5. The full-automatic pipe reducing apparatus according to claim 1, wherein: the first rotary feeding device (20) and the second rotary feeding device (30) comprise feeding clamping jaws (201), first rotary driving units (202) capable of driving the feeding clamping jaws to rotate, second rotary driving units (203) capable of driving the feeding clamping jaws to rotate and feeding driving units (204) capable of driving the feeding clamping jaws to lift, and the pipes are rotated to a vertical state from a horizontal state or rotated to a horizontal state from a vertical state through the cooperation of the first rotary driving units and the second driving units.
6. The full-automatic pipe reducing apparatus according to claim 1, wherein: the material conveying device (50) comprises a material conveying clamping jaw (501), an X-direction material conveying driving unit (502) capable of driving the material conveying clamping jaw to translate in the X direction, a Y-direction material conveying driving unit (503) capable of driving the material conveying clamping jaw to translate in the Y direction, and a Z-direction material conveying driving unit (504) capable of driving the material conveying clamping jaw to translate in the Z direction;
each pipe reducing device comprises a positioning clamping mechanism (801) for clamping a pipe, a pipe reducing mechanism (802) and a pipe reducing lifting driving unit (803) capable of driving the pipe reducing mechanism to lift, and the pipe reducing mechanism is driven to descend to reduce the pipe through the pipe reducing lifting driving unit.
7. The full-automatic pipe reducing apparatus according to claim 6, wherein: the positioning and clamping mechanism (801) comprises a lower bearing seat (8011), clamping gas claws (8012) and a leaning block structure (8013), the pipe is placed on the lower bearing seat, the clamping gas claws stand on the lower bearing seat through the clamping gas claws, and the pipe is positioned and fixed in radial relative position through the leaning block structure.
8. The full-automatic pipe reducing apparatus according to claim 6, wherein: the pipe reducing mechanism (802) comprises a pressure head (8021) and a forming die (8022), wherein a cavity is arranged in the middle of the pressure head, the cross section of the cavity is in a horn mouth shape with a small upper hole diameter and a large lower hole diameter, the forming die is arranged in the cavity, and the shape of the forming die is matched with that of the cavity.
9. The full-automatic pipe reducing apparatus according to claim 8, wherein: the pipe reducing mechanism further comprises a connecting sleeve (8023), an ejector pin (8024), a top head (8025) and a movable plate (8026), the connecting sleeve is installed above the pressing head, the ejector pin is installed at the upper end of the forming die, the movable plate is installed above the ejector pin, the top head is installed above the movable plate, the movable plate is driven to move through the movement of the top head, and therefore the ejector pin and the forming die are driven to move.
10. The full-automatic pipe reducing apparatus according to claim 1, wherein: the blanking device (40) comprises a material supporting frame (401), a material guiding frame (402) and a material supporting driving unit (403) capable of driving the material supporting frame to ascend and descend, wherein a material supporting surface of the material supporting frame is an inclined surface inclining downwards, the upper surface of the material guiding frame is a material guiding surface (4021), and the material guiding surface is also an inclined surface inclining downwards;
the material supporting frame is driven to ascend through the material supporting driving unit and is in butt joint with the material guiding frame, so that the pipe located on the material supporting frame slides to the material guiding frame and slides down along the material guiding surface frame of the material guiding frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111225169.3A CN113976753A (en) | 2021-10-25 | 2021-10-25 | Full-automatic pipe contracting equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111225169.3A CN113976753A (en) | 2021-10-25 | 2021-10-25 | Full-automatic pipe contracting equipment |
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| CN113976753A true CN113976753A (en) | 2022-01-28 |
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| CN202111225169.3A Pending CN113976753A (en) | 2021-10-25 | 2021-10-25 | Full-automatic pipe contracting equipment |
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Cited By (1)
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| CN114834963A (en) * | 2022-05-14 | 2022-08-02 | 维格斯(上海)流体技术有限公司 | Pipe fitting loading attachment and bending machine for pipe bending machine |
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