CN111318615A - Stepping type pipe end forming machine - Google Patents

Stepping type pipe end forming machine Download PDF

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Publication number
CN111318615A
CN111318615A CN202010283321.2A CN202010283321A CN111318615A CN 111318615 A CN111318615 A CN 111318615A CN 202010283321 A CN202010283321 A CN 202010283321A CN 111318615 A CN111318615 A CN 111318615A
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China
Prior art keywords
die
closed
straight
station
groups
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Pending
Application number
CN202010283321.2A
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Chinese (zh)
Inventor
周庆念
叶剑华
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Guolin Tianjin Technology Co ltd
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Guolin Tianjin Technology Co ltd
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Priority to CN202010283321.2A priority Critical patent/CN111318615A/en
Publication of CN111318615A publication Critical patent/CN111318615A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/003—Simultaneous forming, e.g. making more than one part per stroke
    • 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
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • 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
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/10—Die sets; Pillar guides
    • 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
    • B21D41/02—Enlarging
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

The invention belongs to the technical field of pipe fitting processing, and particularly relates to a stepping pipe end forming machine, which comprises: the automatic feeding machine comprises an automatic feeding machine, a processing platform and a stepping platform in the horizontal plane, wherein the stepping platform is arranged on the processing platform and moves in the horizontal direction at equal intervals; the mould comprises a plurality of moulds, a plurality of mould clamping devices and a plurality of positioning devices, wherein the moulds are equidistantly arranged on a processing platform and comprise an upper mould and a lower mould, and a mould cavity is formed when the upper mould and the lower mould are closed; the automatic straight pipe or bent pipe adaptive flaring, flattening, forming and shaping device is arranged on the processing platform, the adaptability is high, equipment and processes required by workpiece transfer are saved, and the production cost is reduced.

Description

Stepping type pipe end forming machine
Technical Field
The invention belongs to the technical field of pipe fitting processing, and particularly relates to a stepping pipe end forming machine.
Background
The pipe end forming equipment is mainly used for pipe fitting forming and has wide application in practice, each valve body of an inner mold of the existing pipe end forming equipment is of an integral structure, and when the pipe end forming equipment works, each valve body of the inner mold is driven by a hydraulic cylinder to move along the radial direction, so that the external support operation of the inner mold is realized; meanwhile, the outer die contracts inwards along the radial direction and is close to the inner die, and the forming and processing operation of the workpiece is realized through the mutual matching of the outer die and the inner die.
The prior art has the defects that the four devices, namely the flaring device, the flat head device, the forming device and the shaping device, are independent, so that the pipe fitting needs to be transferred, stored, loaded and unloaded for many times in the machining process, the working procedures are complicated, the use amount of equipment is large, and the production cost is increased.
Disclosure of Invention
The present invention provides a progressive pipe end forming machine to solve the problems set forth in the background art described above.
In order to achieve the purpose, the invention provides the following technical scheme: a progressive tube end forming machine comprising:
the automatic feeding machine comprises an automatic feeding machine, a processing platform and a stepping platform in the horizontal plane, wherein the stepping platform is arranged on the processing platform and moves in the horizontal direction at equal intervals;
the plurality of dies are arranged on the processing platform at equal intervals, each die comprises an upper die and a lower die, a die cavity is formed when the upper die and the lower die are closed, the axis of the die cavity is parallel to the horizontal moving direction of the stepping platform, and openings are formed in two ends of the die cavity;
a mold closing device capable of closing the mold forming cavity at the time of processing and opening the upper mold after the end of processing;
the device comprises a first station flaring device, a second station flat head device, a third station forming device and a fourth station shaping device, wherein the first station flaring device, the second station flat head device, the third station forming device and the fourth station shaping device are sequentially arranged on a processing platform along the processing sequence of a workpiece;
and the five feeding air cylinders are arranged at the edge of the processing platform and are used for exchanging the position of the workpiece between the stepping platform and the processing platform.
Preferably, the first station flaring device is provided with three groups of flaring extrusion heads and flaring brakes connected to the flaring extrusion heads, and the three groups of flaring extrusion heads are arranged in the first station flaring device; the second station flat head device is provided with three groups of flat head cutters and a driving motor for driving the flat head cutters, and the three groups of flat head cutters are arranged in the second station flat head device; the third station forming device is provided with three groups of forming extrusion heads and forming brakes connected to the forming extrusion heads, and the three groups of forming extrusion heads are arranged in the third station forming device; the shaping device is provided with three groups of shaping heads and a shaping brake connected to the shaping heads, and the three groups of shaping heads are arranged in the fourth station shaping device.
Preferably, the two sets of flaring extrusion heads which are opposite in parallel are concentric with the central axis of the straight-through type upper die and the straight-through type lower die when the straight-through type upper die and the straight-through type lower die are closed, are aligned with the die cavity formed when the straight-through type upper die and the straight-through type lower die are closed, and can move oppositely and reversely along the central axis of the die cavity.
Preferably, the two groups of flaring extrusion heads with certain angles are concentric with the central axis of the elbow type upper die and the elbow type lower die when the dies are closed, are aligned with the die cavity formed when the elbow type upper die and the elbow type lower die are closed, and can move oppositely and reversely along the central axis of the die cavity.
Preferably, the two parallel opposite groups of flat-head cutters are concentric with the central axis of the straight-through upper mold and the straight-through lower mold when the straight-through upper mold and the straight-through lower mold are closed, are aligned with a mold cavity formed when the straight-through upper mold and the straight-through lower mold are closed, and can move oppositely and reversely along the central axis of the mold cavity.
Preferably, the two groups of flat-head cutters with certain angles are concentric with the central axis of the elbow type upper mold and the elbow type lower mold when the elbow type upper mold and the elbow type lower mold are closed, are aligned with the mold cavity formed when the elbow type upper mold and the elbow type lower mold are closed, and can move oppositely and reversely along the central axis of the mold cavity.
Preferably, the two parallel and opposite groups of the forming extrusion heads are concentric with the central axis of the straight-through type upper die and the straight-through type lower die when the forming extrusion heads are closed, are aligned with a die cavity formed when the straight-through type upper die and the straight-through type lower die are closed, and can move oppositely and reversely along the central axis of the die cavity.
Preferably, the two groups of the forming extrusion heads with certain angles are concentric with the central axis of the elbow type upper die and the elbow type lower die during closing, are aligned with the die cavity formed by the elbow type upper die and the elbow type lower die during closing, and can move oppositely and reversely along the central axis of the die cavity.
Preferably, the two parallel and opposite groups of the shaping heads are concentric with the central axis of the straight-through type upper die and the straight-through type lower die when the straight-through type upper die and the straight-through type lower die are closed, are aligned with a die cavity formed when the straight-through type upper die and the straight-through type lower die are closed, and can move oppositely and reversely along the central axis of the die cavity.
Preferably, the two groups of the shaping heads with certain angles are concentric with the central axis of the elbow type upper die and the elbow type lower die when the elbow type upper die and the elbow type lower die are closed, and are aligned with the die cavity formed when the elbow type upper die and the elbow type lower die are closed, and can move oppositely and reversely along the central axis of the die cavity.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the flaring device, the flat head device, the forming device and the shaping device are arranged on the processing platform, the automatic feeding machine and the stepping platform are used for feeding materials in order to form a production line, so that the time is saved, the workpiece is transported from the previous device to the next device through the automatic mechanical gripper, and the flaring device, the flat head device, the forming device and the shaping device which are matched with the straight pipe or the bent pipe can be arranged on the processing platform, so that the adaptability is high, the equipment and the working procedures required by workpiece transportation are saved, and the production cost is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a straight pipe end forming machine according to the present invention;
fig. 3 is a schematic structural view of the elbow pipe end forming machine of the present invention.
In the figure: 1. an automatic feeding machine; 11. a material waiting station; 2. a processing platform; 3. a stepping platform; 4. a mold; 41. an upper mold; 42. a lower mold; 5. a mold closing device; 6. a feeding cylinder; 7. a first station flaring device; 71. flaring and extruding heads; 72. a flaring brake; 8. a second station flat head device; 81. a flat head cutter; 82. a drive motor; 9. a third station forming device; 91. forming an extrusion head; 92. forming a brake; 10. a shaping device; 101. a shaping head; 102. a plastic brake.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides the following technical solutions: the stepping pipe end forming machine comprises an automatic feeding machine 1, a processing platform 2 and a stepping platform 3 in a horizontal plane, wherein the stepping platform 3 is arranged on the processing platform 2, so that workpieces conveyed on the stepping platform move in the horizontal direction at equal intervals;
a plurality of molds 4, which are equidistantly arranged on the processing platform 2 and comprise an upper mold 41 and a lower mold 42, wherein a mold cavity is formed when the upper mold and the lower mold are closed, the axis of the mold cavity is parallel to the horizontal moving direction of the stepping platform 3, and openings are formed at two ends of the mold cavity;
a mold closing device 5 capable of closing the mold forming cavity at the time of processing and opening the upper mold 41 after the end of processing;
the five feeding cylinders 6 are arranged at the edge of the processing platform 2 and used for exchanging the position of a workpiece between the stepping platform 3 and the processing platform 2;
the first station flaring device 7 is provided with three groups of flaring extrusion heads 71 and flaring brakes 72 connected to the flaring extrusion heads, the three groups of flaring extrusion heads are arranged in the first station flaring device 7, and the two groups of flaring extrusion heads which are opposite in parallel are concentric with the central axis of the straight-through upper die and the straight-through lower die when being closed, are aligned with the die cavity formed when the straight-through upper die and the straight-through lower die are closed, and can move in opposite directions and move in opposite directions along the central axis of the die cavity; the two groups of flaring extrusion heads with certain angles are concentric with the central axis of the elbow type upper die and the elbow type lower die when the two groups of flaring extrusion heads are closed, are aligned with the die cavity formed when the elbow type upper die and the elbow type lower die are closed, and can move oppositely and reversely along the central axis of the die cavity.
The second station flat head device 8 is provided with three sets of flat head cutters 81 and a driving motor 82 for driving the flat head cutters, the three sets of flat head cutters are arranged in the second station flat head device 8, and the two sets of parallel opposite flat head cutters are concentric with the central axis when the straight-through upper mold and the straight-through lower mold are closed, are aligned with a mold cavity formed when the straight-through upper mold and the straight-through lower mold are closed, and can move oppositely and reversely along the central axis of the mold cavity; two groups of flat-head cutters with certain angles are concentric with the central axis of the elbow type upper mold and the elbow type lower mold when the elbow type upper mold and the elbow type lower mold are closed, are aligned with the mold cavity formed when the elbow type upper mold and the elbow type lower mold are closed, and can move oppositely and reversely along the central axis of the mold cavity.
The third station forming device 9 is provided with three groups of forming extrusion heads 91 and forming brakes 92 connected to the forming extrusion heads, the three groups of forming extrusion heads are arranged in the third station forming device 9, and the two groups of forming extrusion heads which are opposite in parallel are concentric with the central axis when the straight-through upper die and the straight-through lower die are closed, are aligned with the die cavity formed when the straight-through upper die and the straight-through lower die are closed, and can move oppositely and reversely along the central axis of the die cavity; the two groups of forming extrusion heads with certain angles are concentric with the central axis of the elbow type upper die and the elbow type lower die when the elbow type upper die and the elbow type lower die are closed, are aligned with the die cavity formed when the elbow type upper die and the elbow type lower die are closed, and can move oppositely and reversely along the central axis of the die cavity.
The fourth station shaping device 10 is provided with three groups of shaping heads 101 and shaping brakes 102 connected to the shaping heads, the three groups of shaping heads are arranged in the fourth station shaping device 10, and the two groups of parallel and opposite shaping heads are concentric with the central axis when the straight-through upper die and the straight-through lower die are closed, are aligned with a die cavity formed when the straight-through upper die and the straight-through lower die are closed, and can move oppositely and reversely along the central axis of the die cavity; the two groups of shaping heads with certain angles are concentric with the central axis of the elbow type upper die and the elbow type lower die when the elbow type upper die and the elbow type lower die are closed, are aligned with the die cavity formed when the elbow type upper die and the elbow type lower die are closed, and can move oppositely and reversely along the central axis of the die cavity.
The intelligent numerical control system A can control the stepping pipe end forming machine to sequentially complete die opening, die closing, feeding, discharging and machining actions, wherein the machining actions comprise flaring actions, flat head actions, forming actions and shaping actions, and the flaring actions, the flat head actions, the forming actions and the shaping actions are synchronously completed; can process two kinds of pipe fittings of direct class and elbow class, improve equipment commonality and practicality, and each station all can independently debug, the operation.
Specifically, the intelligent numerical control system can be programmed or a micro-system processor.
Specifically, the first station flaring device 7, the second station flat head device 8, the third station forming device 9 and the fourth station shaping device 10 need to complete machining actions in the same time period; after the machining action is finished, the workpieces are fed to the next station for machining by the plurality of feeding cylinders 6, wherein the raw material workpieces are fed to be machined by the feeding cylinders 6, the finished products are taken out to the finished product frame by the feeding cylinders 6, and the process is repeated.
The working principle and the using process of the invention are as follows: feeding and discharging: the automatic feeding machine 1 is used for neatly placing workpieces to be machined to a workpiece waiting station 11, grabbing the workpieces to be machined to the first station flaring device 7 through the feeding cylinder 6 on one side of the first station flaring device 7, grabbing flared workpieces to the second station flaring device 8 through the feeding cylinder 6 on one side of the second station flaring device 8, grabbing the flared workpieces to the third station forming device 9 through the feeding cylinder 6 on one side of the third station forming device 9, grabbing the formed workpieces to the fourth station forming device 10 through the feeding cylinder 6 on one side of the fourth station forming device 10, and unloading the formed workpieces through the feeding cylinder 6.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element 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, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. Step-by-step pipe end make-up machine, its characterized in that: the method comprises the following steps:
the automatic feeding machine comprises an automatic feeding machine (1), a processing platform (2) and a stepping platform (3) in a horizontal plane, wherein the stepping platform (3) is arranged on the processing platform (2) and moves in the horizontal direction at equal intervals;
a plurality of moulds (4), a plurality of said moulds (4) being equidistantly arranged on the processing platform (2), said moulds (4) comprising an upper mould (41) and a lower mould (42), said upper mould (41) and said lower mould (42) forming a mould cavity when closed, the axis of said mould cavity being parallel to the direction of horizontal movement of the stepping platform (3) and having openings at both ends;
a mold closing device (5) capable of closing the mold forming cavity at the time of processing and opening the upper mold (41) after the end of processing;
the device comprises a first station flaring device (7), a second station flat head device (8), a third station forming device (9) and a fourth station shaping device (10), wherein the first station flaring device (7), the second station flat head device (8), the third station forming device (9) and the fourth station shaping device (10) are sequentially arranged on a processing platform (2) along the processing sequence of workpieces;
the five feeding cylinders (6) are arranged at the edge of the processing platform (2) and used for exchanging the position of a workpiece between the stepping platform (3) and the processing platform (2).
2. The progressive pipe-end forming machine of claim 1 wherein: the first station flaring device (7) is provided with three groups of flaring extrusion heads (71) and flaring brakes (72) connected to the flaring extrusion heads (71), and the three groups of flaring extrusion heads (71) are arranged in the first station flaring device (7); the second station flat head device (8) is provided with three groups of flat head cutters (81) and a driving motor (82) for driving the flat head cutters, and the three groups of flat head cutters (81) are arranged in the second station flat head device (8); the third station forming device (9) is provided with three groups of forming extrusion heads (91) and forming brakes (92) connected to the forming extrusion heads, and the three groups of forming extrusion heads (91) are arranged in the third station forming device (9); the fourth station shaping device (10) is provided with three groups of shaping heads (101) and shaping brakes (102) connected to the shaping heads, and the three groups of shaping heads (101) are arranged in the fourth station shaping device (10).
3. The progressive pipe-end forming machine of claim 2 wherein: the two parallel and opposite groups of flaring extrusion heads (71) are concentric with the central axis of the straight-through upper die (41) and the straight-through lower die (42) when closed, are aligned with a die cavity formed when the straight-through upper die (41) and the straight-through lower die (42) are closed, and can move oppositely and reversely along the central axis of the die cavity.
4. The progressive pipe-end forming machine of claim 2 wherein: two groups of flaring extrusion heads (71) with certain angles are concentric with the central axes of the elbow type upper die (41) and the elbow type lower die (42) when closed, are aligned with the die cavity formed when the elbow type upper die (41) and the elbow type lower die (42) are closed, and can move oppositely and reversely along the central axes of the die cavity.
5. The progressive pipe-end forming machine of claim 2 wherein: the two parallel opposite groups of flat-head cutters (81) are concentric with the central axis of the straight-through upper mold (41) and the straight-through lower mold (42) when closed, are aligned with a mold cavity formed when the straight-through upper mold (41) and the straight-through lower mold (42) are closed, and can move oppositely and reversely along the central axis of the mold cavity.
6. The progressive pipe-end forming machine of claim 2 wherein: the two groups of flat head cutters (81) with certain angles are concentric with the central axes of the elbow type upper mold (41) and the elbow type lower mold (42) when closed, are aligned with a mold cavity formed when the elbow type upper mold (41) and the elbow type lower mold (42) are closed, and can move towards each other and move backwards along the central axes of the mold cavity.
7. The progressive pipe-end forming machine of claim 2 wherein: and the two groups of parallel and opposite forming extrusion heads (91) are concentric with the central axis of the straight-through upper die (41) and the straight-through lower die (42) when closed, are aligned with a die cavity formed when the straight-through upper die (41) and the straight-through lower die (42) are closed, and can move oppositely and reversely along the central axis of the die cavity.
8. The progressive pipe-end forming machine of claim 2 wherein: two groups of the forming extrusion heads (91) with certain angles are concentric with the central axes of the elbow type upper die (41) and the elbow type lower die (42) during closing, are aligned with a die cavity formed when the elbow type upper die (41) and the elbow type lower die (42) are closed, and can move oppositely and reversely along the central axes of the die cavity.
9. The progressive pipe-end forming machine of claim 2 wherein: and the two parallel and opposite groups of the shaping heads (101) are concentric with the central axis of the closed straight-through upper die (41) and the closed straight-through lower die (42), are aligned with a die cavity formed when the closed straight-through upper die (41) and the closed straight-through lower die (42), and can move oppositely and reversely along the central axis of the die cavity.
10. The progressive pipe-end forming machine of claim 2 wherein: the two groups of the shaping heads (101) with certain angles are concentric with the central axes of the elbow type upper die (41) and the elbow type lower die (42) when closed, are aligned with a die cavity formed when the elbow type upper die (41) and the elbow type lower die (42) are closed, and can move towards each other and move backwards along the central axes of the die cavity.
CN202010283321.2A 2020-04-13 2020-04-13 Stepping type pipe end forming machine Pending CN111318615A (en)

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Application Number Priority Date Filing Date Title
CN202010283321.2A CN111318615A (en) 2020-04-13 2020-04-13 Stepping type pipe end forming machine

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Application Number Priority Date Filing Date Title
CN202010283321.2A CN111318615A (en) 2020-04-13 2020-04-13 Stepping type pipe end forming machine

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113579134A (en) * 2021-06-29 2021-11-02 中联重科股份有限公司 Pipe fitting processing equipment
CN113579135A (en) * 2021-06-29 2021-11-02 中联重科股份有限公司 Pipe fitting machining method

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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