CN108043903B - Pipe fitting processing forming machine - Google Patents
Pipe fitting processing forming machine Download PDFInfo
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- CN108043903B CN108043903B CN201711226479.0A CN201711226479A CN108043903B CN 108043903 B CN108043903 B CN 108043903B CN 201711226479 A CN201711226479 A CN 201711226479A CN 108043903 B CN108043903 B CN 108043903B
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- clamping
- die
- flanging
- clamping die
- sliding block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to a pipe fitting processing and forming machine, and belongs to the technical field of pipe processing. The pipe fitting processing and shaping machine comprises a side punching and flanging device, wherein the side punching and flanging device comprises a clamping die unit and a side punching and flanging unit, the clamping die unit comprises a first clamping die and a second clamping die, the first clamping die comprises a clamping die base body and a clamping die sliding block which can be mounted on the clamping die base body in a reciprocating manner along the die clamping direction, a half die hole is correspondingly formed in each of the clamping die base body and the clamping die sliding block, the two half die holes are matched with each other to form a flanging die hole matched with a side punching and flanging needle on the side punching and flanging unit, and the two half die holes and the two clamping dies are synchronously opened and closed. Based on the design structure of the clamping die unit, the side punching flanging structure can be formed on the pipe fitting better, the demolding of the side punching flanging structure can be facilitated, the automatic production of the three-way pipe with the side punching flanging structure can be realized, and the side punching flanging structure can be widely applied to the technical field of manufacturing of air conditioners and the like.
Description
Technical Field
The invention relates to pipe fitting machining and forming equipment, in particular to a pipe fitting machining and forming machine capable of machining and forming a three-way pipe with a side punching flanging structure.
Background
The patent document with publication number of CN104646559A discloses a three-way pipe automatic processing device, namely a pipe fitting processing and forming machine, which comprises a frame, a processing and forming system and a pipe shifting manipulator device, wherein the processing and forming system and the pipe shifting manipulator device are arranged on the frame, and the three-way pipe automatic processing device sequentially comprises a feeding device, a flaring device, a flattening and forming device and a discharging device along the advancing direction of a pipe fitting in the processing process; the pipe transporting manipulator device is arranged above each device and is used for transferring a workpiece from a feed port of the feeding unit to the flaring unit so as to carry out flaring treatment on the workpiece by the flaring unit, then conveying the workpiece from the flaring unit to the flattening forming unit so as to carry out flattening forming treatment on the workpiece by the flattening forming unit, finally grabbing the formed workpiece by the pipe transporting manipulator unit and placing the workpiece into the discharging unit, namely, the pipe transporting manipulator device is used for enabling the pipe fitting to be sequentially transferred among all the processing devices so as to be sequentially operated and treated, thereby obtaining a three-way pipe 01 shown in fig. 1, namely, the obtained three-way pipe 01 is flattened on the flaring part 010 of the three-way pipe 01 to form a spectacle pipe structure with through holes 011 and 012.
In order to meet the installation requirement of the three-way pipe, side punching and flanging treatment is required to be carried out at the flaring part 010 of the three-way pipe 01 shown in fig. 1 so as to obtain the three-way pipe 02 shown in fig. 2-4, namely, a side punching and flanging structure 023 and through holes 021 and 022 are simultaneously arranged on the flaring part 020; when the equipment is used for processing, the pipe fitting subjected to flaring processing is required to be placed on a side punching flanging device to be subjected to side punching flanging processing, and then is placed back on the equipment to be subjected to flattening forming processing, so that automatic operation cannot be performed.
Disclosure of Invention
The invention aims to provide a pipe fitting processing and forming machine, which is used for automatically processing and forming a side punching and flanging structure on a pipe fitting by improving the structure of the existing pipe fitting processing and forming machine.
In order to achieve the above object, the present invention provides a pipe processing and forming machine, comprising a frame, a processing and forming system mounted on the frame, and a pipe shifting manipulator device for sequentially transferring pipe between processing devices of the processing and forming system for sequential operation and processing; the processing and forming system sequentially comprises a side punching and flanging device and a flattening and forming device along the advancing direction of the workpiece in the processing and treating process; the side punching flanging device comprises a clamping die unit and a side punching flanging unit, wherein the side punching flanging unit comprises a side punching flanging core rod which can extend into the pipe fitting, and the side punching flanging core rod comprises a punching needle driven by a side punching flanging driving mechanism to perform side punching flanging operation on the pipe fitting; the die clamping unit comprises a first die clamping and a second die clamping, the first die clamping comprises a die clamping base body and a die clamping sliding block which can be mounted on the die clamping base body in a reciprocating manner along the die clamping direction, a first half die hole is formed in the die clamping base body, a second half die hole is formed in the die clamping sliding block, and the second half die hole and the first half die hole are clamped to form a flanging die hole matched with an inner hole flanging die section on the punching pin; the clamping die unit is provided with a synchronous opening and closing driving mechanism which is used for driving the clamping die sliding block to move along the die closing direction so as to enable the two half female die holes and the two clamping dies to be opened and closed synchronously.
Along the advancing direction of pipe fitting in the course of working process, add one side flanging device that punches a hole in the upper reaches of flattening forming device to carry out the flanging that punches a hole of side and handle before flattening forming process to can realize carrying out sequential processing to the pipe fitting under the automatic sequential transfer of tube transfer manipulator, with the glasses pipe structure that has the flanging structure that punches a hole of side. Meanwhile, one clamping die in the clamping die unit is composed of a clamping die base body and a clamping die sliding block, and in the opening and closing process of the two clamping dies, the clamping die sliding block and the clamping die base body are synchronously opened and closed, so that the formed punching flanging structure is conveniently demoulded, and a pipe fitting subjected to side punching flanging treatment is better removed from the clamping die unit by using a mechanical arm, so that automatic production is better realized.
The synchronous opening and closing driving mechanism comprises inclined guide rods which are obliquely arranged towards the exiting direction of the clamping mold sliding blocks from exiting the mold closing state along the opening and closing direction of the two clamping molds and are directed to the first clamping mold by the second clamping mold; one of the second clamping die and the clamping die sliding block is provided with an inclined guide hole matched with the inclined guide rod, and the other is fixedly connected with the inclined guide rod. Through the cooperation of the inclined guide rod and the inclined guide hole, the position change of the two clamping molds in the opening and closing process is converted into a driving force for driving the clamping mold sliding blocks to move relative to the clamping mold base body, and the structure of the whole side punching flanging clamping mold is effectively simplified while synchronous opening and closing is ensured.
The inclined guide rod is fixedly connected with the clamping die sliding block, namely, the inclined guide hole is formed in the second clamping die, so that the size of the clamping die sliding block in the opening and closing direction of the clamping die can be made smaller, the clamping die sliding block can move relative to the clamping die base body, and synchronous opening and closing between the inclined guide rod and the two clamping dies can be better realized.
The preferable scheme is that a mounting chamber is arranged on the clamping die base body, the mounting chamber is provided with an opening positioned on a clamping working surface of the clamping die base body, and a clamping die sliding block is mounted in the mounting chamber in a reciprocating manner along the die closing direction; the clamping die unit is a profiling clamping die.
More preferably, the installation chamber is arranged at the corner part of the clamping die base body, which is adjacent to the second clamping die and adjacent to the side punching flanging unit, and is a right-angle stepped groove with three open sides, and the clamping die sliding block is provided with a right-angle face part matched with the right-angle stepped groove; the projection of the clamping die sliding block and the installation chamber on the opening and closing planes of the two clamping dies are overlapped.
The other preferable scheme is that a limiting guide chute is arranged at the side part of the clamping die sliding block, which is away from the clamping die base body, a cantilever type stop piece is fixedly arranged on the clamping die base body, a limiting sliding block which is matched with the limiting guide chute to force the clamping die sliding block to slide along the die clamping direction relative to the clamping die base body is arranged at the cantilever end of the cantilever type stop piece, and an abutting part which can abut against the limiting sliding block to enable the clamping die sliding block to be limited in the mounting chamber is arranged at one end of the limiting guide chute, which is adjacent to the second half die hole. The clamping die base body is convenient to process and the clamping die sliding block and the clamping die base body are convenient to install.
The other preferable scheme is that the side punching flanging unit comprises a sliding seat and a linear driver, wherein the sliding seat is slidably arranged on a frame through a guide rail sliding block mechanism, the linear driver is used for pushing the sliding seat to reciprocate relative to the frame along the axial direction of a side punching flanging core rod, the side punching flanging core rod comprises an outer guide pipe fixedly arranged on the sliding seat through a support, the side punching flanging driving mechanism comprises a push-pull rod and a linear driver for driving the push-pull rod to reciprocate in the outer guide pipe, a punching needle guide hole matched with a punching needle is arranged on the pipe wall of the outer guide pipe, and the punching needle guide hole is arranged along the radial direction of the outer guide pipe; one of the push-pull rod and the punching needle is provided with an inclined push-pull guide rail which is obliquely arranged relative to the axial direction, and the other one of the push-pull rod and the punching needle is provided with a chute which can slide back and forth along the inclined push-pull guide rail so as to push and pull the punching needle to move back and forth along the punching needle guide hole.
The more preferable scheme is that the inclined push-pull guide rail is arranged on the front end part of the push-pull rod, the front end surface of the push-pull rod is obliquely arranged relative to the axial direction, and the front end surface forms a guide surface of the inclined push-pull guide rail; one end part of the punching needle is a punch for side punching operation and an inner hole flanging die section positioned at the downstream of the punch, the end surface of the other end part is inwards concave to form a U-shaped groove penetrating through the side surface of the end part, the groove wall of the U-shaped groove is inwards concave to form an inclined chute, and the bottom surface of the U-shaped groove forms one groove wall surface of the chute. The inclined push-pull guide rail is arranged on the push-pull rod, so that the inclination angle can be set smaller, the output of larger side punching flanging force is facilitated, and the assembly of the core rod is facilitated.
The axis of the flanging die hole is obliquely arranged relative to the opening and closing directions of the two clamping dies, and the axis is obliquely arranged towards the exiting direction of the clamping die sliding block from the die clamping state along the direction of the inner end of the flanging die hole pointing to the outer end. Because the axis of the flanging die hole is obliquely arranged towards the direction, the clamp die base body can avoid interference with the formed side punching flanging structure in the opening process, and the demolding process is convenient to carry out.
The more preferable scheme is that the stamping direction of a forming die of the flattening forming device is parallel to the opening and closing directions of the two clamping dies; the axial line of the inner hole flanging die hole is equal to the side inclination angle of the side punching flanging structure of the pipe fitting, wherein the axial line of the inner hole flanging die hole is smaller than the included angle between the opening and closing directions of the two clamping dies; the first clamping die and the second clamping die are driven by the clamping die driver to synchronously and oppositely move relative to the clamping die holder. The relative positions of the forming punch die and the side punch flanging clamping die and the inclination angles of the axes of the inner hole flanging die holes are set, so that the pipe transfer manipulator is not required to rotate the pipe fitting after grabbing the pipe fitting to obtain required machining positioning, the structure of the manipulator is effectively simplified, the positioning in the machining forming process is facilitated, and the machining precision of the pipe fitting is improved.
Drawings
FIG. 1 is a schematic diagram of a prior art tee;
FIG. 2 is a schematic view of the structure of the target tee of the present invention;
FIG. 3 is a schematic front view of the tee of FIG. 2;
FIG. 4 is a schematic left-hand view of the tee of FIG. 3;
FIG. 5 is a perspective view of an embodiment of the present invention;
FIG. 6 is a front view of an embodiment of the present invention;
FIG. 7 is a perspective view of a side-piercing flanging die unit in accordance with an embodiment of the present invention;
FIG. 8 is an enlarged view of part A of FIG. 7;
FIG. 9 is a front view of a side-piercing flanging die in accordance with an embodiment of the present invention;
FIG. 10 is an enlarged view of part B of FIG. 9;
FIG. 11 is a perspective view of a side-piercing flanging unit in an embodiment of the present invention;
FIG. 12 is a front view of a side-piercing flanging unit in an embodiment of the present invention;
FIG. 13 is a schematic view of a side-piercing flanging mandrel in an embodiment of the present invention;
FIG. 14 is an enlarged view of part C of FIG. 12;
FIG. 15 is a partial enlarged view of D of FIG. 13;
fig. 16 is a schematic structural view of a forming die of a flattening and forming apparatus in accordance with an embodiment of the present invention.
The invention is further described below with reference to examples and figures thereof.
Detailed Description
The invention is mainly based on the existing pipe fitting processing and shaping machine, and adds a side punching flanging device to process a three-way pipe 02 with a side punching flanging structure as shown in figures 2-4, wherein the structures of a feeding device, a flaring device, a flattening and shaping device, a discharging device and a pipe shifting manipulator device in the pipe fitting processing and shaping machine can be designed by adopting the structures of the existing products, for example, the three-way pipe automatic processing equipment disclosed in the patent document with the publication number of CN104646559A previously applied by the applicant can be adopted.
Examples
Referring to fig. 5 and 6, the pipe fitting processing and forming machine 1 of the invention comprises a frame 10, a feeding device 2, a flaring device 3, a side punching flanging device 4, a flattening and forming device 5, a discharging device 6, a pipe shifting manipulator device 7, a control device and an oil station 104; the control device comprises a touch control screen 103, a processor and a memory, wherein the memory stores computer programs, the processor receives operation instructions input by an operator from the touch control screen 103, and invokes and executes the corresponding computer programs stored in the memory so as to sequentially perform feeding, flaring, side punching flanging, flattening forming and unloading treatment on the pipe fitting; the frame 10 comprises a first frame 102 for installing the feeding device 2, a second frame 101 for installing the flaring device 3, the side punching flanging device 4, the flattening forming device 5, the discharging device 6, the pipe shifting manipulator device 7, the touch control screen 103 and the oil station, wherein the first frame 102 is connected with the second frame 101 through connecting pieces. The feeding device 2, the flaring device 3, the side punching flanging device 4, the flattening forming device 5 and the discharging device 6 form a processing forming system in the embodiment.
The pipe transporting manipulator device 7 comprises a supporting beam 700, a plurality of upright posts 701 which fix the supporting beam 700 on the first frame 102, a transverse guide rail which is transversely arranged and fixed on the supporting beam 700, a synchronous transporting slide seat which is driven by a transverse driver and can reciprocate along the transverse guide rail, and a manipulator group which is arranged on the synchronous transporting slide seat; the support beams 700 together with the transverse rails constitute the transverse support rails in this embodiment; the manipulator group comprises four manipulators for grabbing/releasing the pipe fitting, namely a flaring feeding manipulator 71, a side punching flanging feeding manipulator 72, a flattening forming feeding manipulator 73 and a discharging manipulator 74. The four manipulators comprise workpiece transferring clamping jaws, mounting seats for fixedly arranging the whole manipulator on the synchronous transferring sliding seat, and lifting mechanisms for controlling the workpiece transferring clamping jaws to vertically and reciprocally lift relative to the mounting seats; in this embodiment, the workpiece transfer jaw is a pneumatic finger. The installation seats of the four manipulators are fixedly installed on the synchronous conveying sliding seat, the distances between adjacent two installation seats are the same, the distances between the installation seats are equal to the distances between the feeding station, the flaring station 11, the side punching flanging station 12, the flattening forming station 13 and the discharging station 14 which are arranged at equal intervals as shown in fig. 5, and therefore, the pipe fitting on the corresponding station can be synchronously and transversely conveyed after being independently clamped, namely, the pipe fitting on the corresponding station is clamped and transversely moved to the position right above the next station in the same direction, and the pipe fitting is independently placed on the corresponding station according to processing requirements. That is, the pipe transfer manipulator device 7 is used to transfer pipe sequentially between the processing devices of the processing and forming system to sequentially perform operations such as feeding, flaring, side-punching flanging, flattening and forming, and discharging.
Along the advancing direction of the pipe fitting in the treatment process, a feeding device 2, a flaring device 3, a side punching flanging device 4, a flattening forming device 5 and a discharging device 6 are sequentially arranged on a frame 10. In the invention, "sequential" in "sequential inclusion" or "sequential installation" etc. is configured such that the included sub-objects are ordered according to them, the former is located upstream of the latter in the pipe processing travelling direction, and other processing sub-objects can be added between them according to design requirements; for example, in this embodiment, along the travelling direction of the pipe during the processing, the feeding device 2 is located upstream of the flaring device 3, the flaring device 3 is located upstream of the side punching flanging device 4, the side punching flanging device 4 is located upstream of the flattening forming device 5, the flattening forming device 5 is located upstream of the discharging device 6, and processing devices with other functions can be added between two adjacent processing devices according to the processing procedure requirement of the pipe.
Referring to fig. 7 to 15, the side-hole flanging device of the present invention includes a frame, and a side-hole flanging clamping die unit 8 and a side-hole flanging unit 9 mounted on the frame. The side punching flanging clamping die unit 8, namely the embodiment of the side punching flanging clamping die in the invention, is a profiling clamping die and is used for clamping a pipe fitting to be processed and providing a female die hole required in the side punching flanging treatment process.
As shown in fig. 7 to 10, the side-punching flanging die unit 8 includes a first die, a second die 81, and a die holder and a die driver, which are not shown in the drawings, both of which are slidably mounted on the die holder; the clamping die driver is used for driving the two clamping dies to synchronously move towards the middle position on the clamping die holder to be closed so as to clamp a pipe fitting to be processed, or synchronously move outwards towards the two side positions to be opened so as to release the pipe fitting, namely the clamping die driver is used for driving the two clamping dies to synchronously move towards each other to realize opening and closing.
The first clamping die comprises a clamping die base 82, a clamping die sliding block 83 and a synchronous opening and closing driving mechanism for reciprocating the clamping die sliding block 83 relative to the clamping die base 82 along the die clamping direction, wherein a mounting chamber for mounting the clamping die sliding block 83 is arranged on the clamping die base 82, the mounting chamber is provided with an opening positioned on a clamping working surface of the clamping die base 82, and the clamping die sliding block 83 can be mounted in the mounting chamber in a reciprocating sliding manner along the die clamping direction. The clamping face is configured with the opposite surfaces of the two clamping dies, namely a clamping face 8200 on the clamping die base 82, and in this embodiment, the mounting chamber is a step groove 822 formed in one of the clamping die base 82 adjacent to the right angle portion of the second clamping die 81, and the step groove 822 has openings in the non-working clamping faces 8201 and 8202 in addition to the openings in the clamping face 8200. In the present invention, the "mounting chamber" is configured to be provided in a three-dimensional space of the clamping die base 82 for accommodating all or part of the clamping die slide 83, and guides such as a guide rail, a guide bar, a guide groove, etc. for guiding the movement of the clamping die slide 83 in the die clamping direction can be mounted therein.
The second half clamping groove 810 is formed on the clamping surface of the second clamping die 81, the clamping die base 82 is provided with a clamping groove portion 820, the upper end of the clamping die sliding block 83 is provided with a clamping groove portion 831, the clamping groove portion 820 and the clamping groove portion 831 are combined to form a first half clamping groove 86 matched with the second half clamping groove 810 in the embodiment, and the first half clamping groove 86 and the second half clamping groove 810 are combined to form a clamping groove cavity for clamping on the expanding pipe portion 020 of the pipe 02 shown in fig. 2.
A first half die hole 821 communicated with the cavity of the die clamping groove is arranged at the die clamping groove part 820, a second half die hole 832 communicated with the cavity of the die clamping groove part 831 is correspondingly arranged at the die clamping slider 83 at the die clamping groove part 831, and the second half die hole 832 and the first half die hole 821 are matched to form a flanging die hole 87. That is, the clamping slider moves upward in the Z1 axial direction shown in fig. 10 to clamp the clamping groove portion 820 and the clamping groove portion 831 to form the first half clamping groove 86, and simultaneously, to clamp the second half die hole 832 and the first half die hole 821 to form the burring die hole 87, that is, the Z1 axial direction shown in fig. 10 is arranged in the "clamping direction" in the present embodiment, which is orthogonal to the opening and closing direction Y1 axial direction of the two clamping dies. In the present invention, the "mold clamping direction" is configured as a moving direction in which the mold clamping slider 83 moves relative to the mold clamping base 82 to clamp the flanging die hole 87 and the first half of the mold clamping groove 86, which are set according to specific conditions, for example, synchronous opening and closing can be set to be in a transverse arrangement according to needs, and at this time, the two mold clamping dies can be opened and closed in the up-down direction; of course, it is also possible to provide the arrangement inclined at a predetermined acute angle with respect to the Z1 direction.
A right angle part of the clamping die sliding block 83, which is away from the clamping die base 82, is provided with a limit guide chute 833, and the limit guide chute 833 is arranged along the die assembly direction, namely along the Z1 axial direction shown in FIG. 10 and is a step-shaped chute; the cantilever type stopper 84 is fixedly arranged on the clamping die base 82, the cantilever type stopper 84 comprises a fixed arm 841 and a cantilever end 842, the fixed arm 841 and the cantilever end 842 form an L-shaped component, a limit sliding block matched with a limit guide sliding groove 833 is arranged on the cantilever end 842, the upper end of the limit guide sliding groove 833 is a closed end face, namely the closed end face forms an abutting part which can abut against the limit sliding block to enable the clamping die sliding block to be limited in a mounting chamber, so that the clamping die sliding block 83 can reciprocate in the mounting chamber within a preset displacement range, and the clamping die sliding block 83 can only move along two groove walls which are arranged along the Z1 axial direction of the step type groove 822 through the limiting action of the step type sliding groove 833 and the cantilever end 842, and therefore the clamping die sliding block 83 can move along the die clamping direction relative to the clamping die base 82.
In this embodiment, the installation chamber is a rectangular step-shaped groove with three open sides, and the clamping die sliding block 83 has a rectangular face portion matching with the rectangular step-shaped groove, that is, the clamping die sliding block 83 is limited and guided along the die assembly direction by the cooperation of two rectangular faces of the installation chamber and the cantilever end 842 with the limiting guide chute 833. And the clamping die sliding block 83 is overlapped with the projection of the mounting chamber on the opening and closing plane of the two clamping dies. In this embodiment, the "opening and closing plane" is configured to be a plane parallel to both the opening and closing direction of the two clamping dies and the axial direction of the clamped pipe fitting, i.e., an X1-Y1 plane as shown in fig. 10.
In this embodiment, the axis of the flanging die hole 87 is disposed at an inclined acute angle with respect to the opening and closing directions of the two clamping dies, that is, the Y1 axis as shown in fig. 10 is used to represent the opening and closing directions of the first clamping die and the second clamping die 81, so that the axis of the flanging die hole 87 is disposed at an inclined acute angle with respect to the horizontal position, and the axis of the flanging die hole 87 is disposed at an inclined angle toward the direction of the outer end as shown in fig. 8, that is, the direction of the arrow as shown in fig. 8, toward the closing direction of the clamping die slider 83, so that the clamping die base 82 and the clamping die slider 83 do not interfere with the formed side-punching flanging structure when the first clamping die moves outward to open.
The inclination angle of the axis of the flanging die hole 87 is determined according to the structure in the three-way pipe 02 which is actually required to be processed, as shown in fig. 4, the plane of the axes of the through holes 021 and 022 in the eye pipe structure is a plane 0200, the axis 0201 of the side punching flanging structure 023 is not perpendicular to the plane 0200, while in the flattening forming device 5, the forming die 50 comprises die holders 51 and 52, as shown in fig. 16, the upper end surfaces 511 and 521 of the die holder 51 and the die holder 52 are used for flattening the expanded pipe portion 020 of the pipe fitting, the eye pipe structure is formed by clamping the die holders 510 and 520, and meanwhile, the dotting is performed between pipes by the bump dies 53 and 54; the opening and closing directions of the two dies used for flattening the pipe expanding part 020 and then clamping the pipe expanding part into an eye pipe structure shown in fig. 4 are arranged along the horizontal direction, namely the opening and closing directions are arranged along the Y3 axial direction and are parallel to the opening and closing directions of the two clamping dies, so that the plane 0200 is arranged along the vertical direction, and the axis of the flanging die hole 87 is arranged as an inclined acute angle in the side punching flanging clamping die 8, namely the acute angle between the axis of the flanging die hole 87 and the vertical plane is equal to the acute angle between the axis 0201 and the plane 0200, thereby effectively avoiding the requirement of rotating the flattening forming feeding manipulator 73 for a preset angle after clamping pipe fittings; the structure of the manipulator is effectively simplified, and the precision of subsequent positioning processing can be improved. Of course, a rotating device capable of enabling the pipe fitting clamped in the clamping jaw to rotate around the axis of the pipe fitting by a preset angle can be arranged on the flattening forming feeding manipulator 73, specifically, the clamping surface of the clamping jaw is formed by the roller surfaces of rotatable driving rollers, the plurality of driving rollers are driven by a driver to rotate so as to drive the pipe fitting to rotate by a preset angle, and the flanging die hole 87 is not required to be arranged to be of an inclined structure; it is also possible to arrange the clamping dies in the flattening forming apparatus 5 to be inclined at a predetermined angle without arranging the burring die holes 87 to be inclined.
As shown in fig. 8 and 10, the synchronous opening and closing driving mechanism is further used to slide the clamping mold sliding block 83 along the sliding slot 822 so as to enable the two half female mold holes to be opened and closed synchronously with the two clamping molds. The synchronous opening and closing driving mechanism can adopt a power device to synchronously drive under the control of the control unit, namely an active driving mechanism; in this embodiment, a passive driving mechanism is adopted, which includes an inclined guide rod 85, the second clamping die 81 points to the first clamping die along the opening and closing direction of the two clamping dies, the inclined guide rod 85 is obliquely arranged towards the exiting direction of the clamping die sliding block 83 from the clamping die state, that is, along the direction of pointing to the right side in the axial direction of Y1 as shown in FIG. 10, the inclined guide rod 85 is arranged towards the downward inclined direction, the second clamping die 82 is provided with an inclined guide hole 8100 matched with the inclined guide rod 85, and the clamping die sliding block 83 is fixedly connected with the other end of the inclined guide rod 85. As shown in fig. 10, the second clamping die 81 and the clamping die base 82 are synchronously moved toward the middle position along the Y1 axial direction by the clamping die driver to close the first half clamping die slot 86 and the second half clamping die slot 810 into the clamping die cavity for clamping the pipe fitting, and due to the change of the relative positions therebetween, the inclined guide rod 85 is slid along the inclined guide hole 8100 to push the clamping die sliding block 83 to move upward along the chute 822 toward the Z1 direction to close the clamping die slot portion 831 and the clamping die slot portion 820 into the half clamping die slot 86, and simultaneously, the second half clamping die hole 832 and the first half clamping die hole 821 are synchronously closed into the flanging die hole 87. Similarly, when the second die 81 and the die base 82 are synchronously moved outwardly along the Y1 axis toward both sides under the drive of the die driver, the second half die holes 832 and the first half die holes 821, the first half die grooves 86 and 810, and the die groove portions 831 and 820 are synchronously opened, thereby facilitating the removal of the pipe fitting from the side punch flanging die by the robot.
Referring to fig. 11 to 15, the side-piercing burring unit 9 includes a slider 90, a linear driver 97, and a side-piercing burring core rod 94. The slide 90 is slidably mounted on the frame through a guide rail slide mechanism 91, and the linear driver 97 is an air cylinder and is used for pushing the slide 90 to reciprocate along the axial direction X2, wherein the axial direction X2 is the axial direction of a side punching flanging core rod 94, so that the side punching flanging core rod 94 fixedly arranged on the slide 90 through the support 93 can be pushed to move along the axial direction to be inserted into a pipe to be processed or withdraw from the pipe.
The side punching flanging mandrel 94 comprises an outer guide tube 940 fixed on the support 93, a push-pull rod 942 slidably sleeved in the outer guide tube 940, a punch needle 943 reciprocally slidable along a probe guide hole 9400 provided on the outer guide tube 940, and a linear driver for driving the push-pull rod 942 to reciprocally slide in the outer guide tube 940; in the present embodiment, the linear driver includes an oil cylinder 96 and a push-pull link 941, which constitute a side-punching flanging driving mechanism in the present embodiment; the front end of the push-pull rod 942 is provided with an inclined push-pull rail 9420 which is arranged obliquely relative to the X2 axial direction, the front end surface 9422 of the push-pull rod 942 is an inclined surface which is arranged obliquely relative to the X2 axial direction, the push-pull rail 9420 is two and is symmetrically arranged about the central line of the front end surface 9422 in the length direction, the edge part of the front end surface 9422 forms a guiding surface of the inclined push-pull rail 9420, the other guiding surface of the inclined push-pull rail 9420 is provided by the groove wall of the inclined groove 9421, the punch needle 943 is provided with an inclined sliding groove matched with the push-pull rail 9420, namely, the lower end part of the punch needle 943 is provided with a U-shaped groove structure which is buckled outside the front end part of the push-pull rod 941, an inner concave sliding groove matched with the inclined push-pull rail 9420 is arranged in the U-shaped groove structure to form the inclined sliding groove, and the groove bottom surface of the U-shaped groove structure forms a groove wall surface of the inner concave sliding groove, so that the punch needle 943 can reciprocate along the punch needle guide hole 9440 through the matching of the inclined sliding groove and the inclined sliding rail 9420.
The upper end of the punch pin 943 includes a punch 9432 for forming a side punch hole in the pipe fitting and an inner hole flanging die segment 9431 for forming an inner hole flanging structure in cooperation with the flanging die hole 87, so that in the working process, the cylinder 97 pushes the slide seat 90 to slide along the guide rail slide block mechanism 91 so that the front end of the side punch flanging mandrel 94 extends into the pipe fitting to be processed, and then the cylinder 96 pushes the push-pull rod 941 to move forward so as to push the punch pin 943 to extend out of the probe guide hole 9400 for side punch flanging treatment of the pipe fitting.
The pipe fitting forming machine 1 is used for forming the three-way pipe with the side punching flanging structure as shown in fig. 2 to 4 by the following specific processes:
(1) The pipe fitting fed by the feeding device 2 is grabbed by the flaring feeding manipulator 71, the grabbed pipe fitting is transferred to the flaring station 11, and the flaring device 3 is used for flaring the preset end part of the pipe fitting, and the flaring treatment sequentially comprises two direct-flushing flaring treatments, one-time rotary-flaring treatment and planar chamfering treatment.
(2) Grabbing the pipe fitting after flaring through the side punching flanging feeding manipulator 72, transferring the grabbed pipe fitting to the side punching flanging station 12 and performing side punching flanging on the pipe expanding part of the pipe fitting by using the side punching flanging device 4, and specifically comprising the following steps:
(2.1) driving the two clamping dies to move outwards along the Y1 axial direction as shown in fig. 10 by the clamping die driver, namely, moving towards the opening direction along the opening and closing direction until the first half clamping die groove 86 and the second half clamping die groove 810 are opened; simultaneously, the clamping die sliding block 83 and the clamping die base 82 move in the die clamping direction towards the opening direction until the second half die hole 832 and the first half die hole 821 are opened under the drive of the synchronous opening and closing driving mechanism;
(2.2) grabbing the pipe fitting subjected to flaring treatment at the flaring station by a side punching flanging mechanical arm, and transferring the grabbed pipe fitting to a central position between the first half clamping die groove 86 and the second half clamping die groove 810, namely a preset side punching flanging station 12;
(2.3) driving the two clamping dies to move inwards along the axial direction Y1 as shown in fig. 10 by a clamping die driver, namely, moving towards the closing direction along the opening and closing direction to enable the first half clamping die groove 86 and the second half clamping die groove 810 to be closed into a clamping die groove cavity for clamping the pipe part to be processed of the pipe fitting; simultaneously, the clamping die sliding block 83 and the clamping die base 82 move towards the closing direction along the die closing direction under the drive of the synchronous opening and closing driving mechanism until the second half die hole 832 and the first half die hole 821 are clamped to form a flanging die hole 87;
(2.4) pushing the slide 90 by the cylinder 97 and driving the side punch flanging mandrel 94 to axially move towards X2 as shown in FIG. 12 until the front end of the outer conduit 944 extends into the pipe to be processed, to a position where the axis of the punch 943 is collinear with the axis of the flanging die hole 87;
(2.5) pushing the push-pull rod 942 by the oil cylinder 96 to move in the forward direction in the X2 axial direction as shown in fig. 10, so that the push-pull rod 944 pushes the punch needle 943 from the position retracted into the outer guide tube as shown in fig. 15 to the position extended out of the outer guide tube to perform side-punching flanging treatment on the pipe as shown in fig. 14, in the process, the side wall of the pipe to be processed is punched from inside to outside by the punch 9432 to form side-punching, and the side-punching flanging structure 023 as shown in fig. 2 is formed by the cooperation of the inner circle Kong Fan side-die segment 9431 and the flanging die hole 87;
(2.6) grabbing the pipe fitting subjected to the side punching flanging treatment by a flattening forming feeding manipulator 73 of the pipe shifting manipulator device 7, and driving the two clamping dies to move outwards along the Y1 axial direction shown in fig. 10 by a clamping die driver, namely, moving towards the opening direction along the opening and closing direction until the first half clamping die groove 86 and the second half clamping die groove 810 are opened to release the pipe fitting and avoiding the movement of the pipe fitting in the vertical direction; meanwhile, under the drive of the synchronous opening and closing drive mechanism, the clamping die sliding block 83 and the clamping die base 82 move towards the opening direction along the die closing direction until the second half die hole 832 and the first half die hole 821 are opened to the release side punching flanging structure, and the opening degree between the first half die slot 86 and the second half die slot 810 and the opening degree between the second half die hole 832 and the first half die hole 821 are opened until the flattening forming feeding manipulator 73 grabs the pipe fitting along the vertical moving process, so that the whole clamping die unit can be avoided.
(3) The pipe fitting which is positioned on the side punching flanging clamping die 8 and is subjected to side punching flanging treatment is grabbed by the flattening forming feeding mechanical arm 73, is transferred to the flattening forming station 13, and is subjected to flattening forming treatment by using the flattening forming device 5 to obtain the eye pipe structure shown in fig. 2 to 4.
(4) The pipe fitting after flattening and forming treatment on the flattening and forming station is grabbed by the unloading manipulator 74, and the grabbed pipe fitting is transferred to the unloading station 14 and unloaded by the unloading device 6.
In the present invention, the "first" and "second" in the first clamping die and the second clamping die are only used for distinguishing the marks of the two clamping dies, and are not limited to the sequence and structure of the two clamping dies, and meanwhile, the opening and closing directions of the two clamping dies are not limited to the arrangement along the transverse direction in the above embodiment, and can be arranged vertically or inclined by a predetermined angle according to the requirement.
For the manner that the pipe is grabbed by the manipulator to move vertically to move into or out of the side punching flanging station, the inclined guide rod 85 is arranged below the first half clamping groove 86 and the second half clamping groove 810, namely below the clamping groove cavity, so that interference is not caused to the pipe transferring process, and at this time, the direction in which the clamping sliding block 83 exits from the clamping state is downward relative to the clamping matrix 82. Of course, the inclined guide rod 85 can be arranged above the clamping die cavity in a mode that the pipe fitting is pulled out of the clamping die along the axial direction of the pipe fitting by the mechanical arm, and the direction of the clamping die sliding block which is out of the clamping die state is upward relative to the clamping die base body.
The moving mode of the two clamping molds relative to the clamping mold base is not limited to the mode that the two clamping molds synchronously move outwards or inwards in the embodiment, namely, synchronously move towards each other, and one clamping mold can be a fixed clamping mold, the other clamping mold is a movable clamping mold, and at the moment, the process of taking off the pipe fitting from the clamping mold is as follows: the pipe fitting is grabbed by a manipulator on the pipe transfer manipulator device and driven to move along the opening and closing directions of the two clamping molds by a preset distance relative to the opened clamping molds so as to avoid the opening of the clamping molds by the vertical movement. The synchronous opposite movement between the first clamping die and the second clamping die is configured in the invention that the first clamping die and the second clamping die can synchronously move towards the clamping position to be closed to clamp the pipe fitting or synchronously move towards two side positions deviating from the clamping position to be opened to release the pipe fitting under the drive of the clamping die driver, and the synchronous opposite movement speed of the two clamping dies is limited to the constant speed in the embodiment, and the synchronous opposite movement speed can be unequal by setting the wedge surfaces on two sides of the push block to be different in gradient.
Claims (12)
1. The utility model provides a pipe fitting machine of working, includes frame and installs the machine-shaping system in the frame and be used for making the pipe fitting transfer in order among each processing apparatus of machine-shaping system in order to operate the pipe shifting manipulator device of handling in order, its characterized in that:
the processing and forming system sequentially comprises a side punching and flanging device and a flattening and forming device along the advancing direction of the workpiece in the processing and treating process;
the side punching flanging device comprises a clamping die unit and a side punching flanging unit, wherein the side punching flanging unit comprises a side punching flanging mandrel which can extend into a pipe fitting, and the side punching flanging mandrel comprises a punching needle driven by a side punching flanging driving mechanism to perform side punching flanging operation on the pipe fitting;
the clamping die unit comprises a first clamping die, a second clamping die, a clamping die seat and a clamping die driver, wherein the first clamping die and the second clamping die are driven by the clamping die driver to synchronously move in opposite directions relative to the clamping die seat; the first clamping die comprises a clamping die base body and a clamping die sliding block which can be mounted on the clamping die base body in a reciprocating manner along the die clamping direction, a first half die hole is formed in the clamping die base body, a second half die hole is formed in the clamping die sliding block, and the second half die hole and the first half die hole are clamped to form a flanging die hole matched with an inner hole flanging die section on the punching pin;
and the clamping die unit is provided with a synchronous opening and closing driving mechanism which is used for driving the clamping die sliding block to move along the die closing direction so as to enable the two half female die holes and the two clamping dies to be opened and closed synchronously.
2. The pipe forming machine of claim 1, wherein:
the synchronous opening and closing driving mechanism comprises inclined guide rods, the second clamping dies point to the first clamping dies along the opening and closing direction of the two clamping dies, and the inclined guide rods are obliquely arranged towards the exiting direction of the clamping die sliding blocks from exiting the die clamping state;
one of the second clamping die and the clamping die sliding block is provided with an inclined guide hole matched with the inclined guide rod, and the other is fixedly connected with the inclined guide rod.
3. The pipe forming machine of claim 2, wherein:
the clamping die base body is provided with a mounting chamber, the mounting chamber is provided with an opening positioned on a clamping working surface of the clamping die base body, and the clamping die sliding block is mounted in the mounting chamber in a reciprocating manner along the die clamping direction;
the clamping die unit is a profiling clamping die.
4. The pipe forming machine of claim 2, wherein:
the inclined guide rod is fixedly connected with the clamping die sliding block.
5. The pipe forming machine of claim 1, wherein:
the clamping die base body is provided with a mounting chamber, the mounting chamber is provided with an opening positioned on a clamping working surface of the clamping die base body, and the clamping die sliding block is mounted in the mounting chamber in a reciprocating manner along the die clamping direction;
the clamping die unit is a profiling clamping die.
6. The pipe forming machine of claim 5, wherein:
the mounting chamber is positioned at the corner part of the clamping die base body, which is adjacent to the second clamping die and the side punching flanging unit, and is a right-angle stepped groove with three open sides, and the clamping die sliding block is provided with a right-angle face part matched with the right-angle stepped groove;
and the projection of the clamping die sliding block and the installation chamber on the opening and closing planes of the two clamping dies are overlapped.
7. The pipe forming machine of claim 5, wherein:
the side part of the clamping die sliding block, which is away from the clamping die base body, is provided with a limiting guide sliding groove, the clamping die base body is fixedly provided with a cantilever type stop piece, the cantilever end of the cantilever type stop piece is provided with a limiting sliding block which is matched with the limiting guide sliding groove to force the clamping die sliding block to slide along the clamping die base body in the die closing direction, and one end of the limiting guide sliding groove, which is adjacent to the second half die hole, is provided with an abutting part which can abut against the limiting sliding block to enable the clamping die sliding block to be limited in the mounting chamber.
8. A pipe forming machine according to any one of claims 1 to 7, wherein:
the side punching flanging unit comprises a sliding seat and a linear driver, wherein the sliding seat is slidably arranged on the frame through a guide rail sliding block mechanism, and the linear driver is used for pushing the sliding seat to move back and forth along the axial direction of the side punching flanging core rod relative to the frame;
the side punching flanging mandrel comprises an outer guide pipe fixedly arranged on the sliding seat through a support, the side punching flanging driving mechanism comprises a push-pull rod and a linear driver for driving the push-pull rod to slide in the outer guide pipe in a reciprocating manner, a punching needle guide hole matched with the punching needle is arranged on the pipe wall of the outer guide pipe, and the punching needle guide hole is arranged along the radial direction of the outer guide pipe;
one of the push-pull rod and the punching needle is provided with an inclined push-pull guide rail which is obliquely arranged relative to the axial direction, and the other one of the push-pull rod and the punching needle is provided with an inclined chute which can slide back and forth along the inclined push-pull guide rail so as to push and pull the punching needle to move back and forth along the punching needle guide hole.
9. The pipe forming machine of claim 8, wherein:
the axis of the flanging die hole is obliquely arranged relative to the opening and closing directions of the two clamping dies, and is obliquely arranged along the direction of the inner end of the flanging die hole pointing to the outer end, and the axis is obliquely arranged towards the exiting direction of the clamping die sliding block exiting from the die clamping state.
10. The pipe forming machine of claim 8, wherein:
the inclined push-pull guide rail is arranged on the front end part of the push-pull rod, the front end surface of the push-pull rod is obliquely arranged relative to the axial direction, and the front end surface forms a guide surface of the inclined push-pull guide rail;
one end part of the punching needle is a punch used for side punching operation and the inner hole flanging die section positioned at the downstream of the punch, a U-shaped groove penetrating through the side surface of the end part is formed in the end face of the other end part in a concave mode, an inclined chute is formed in the groove wall of the U-shaped groove in a concave mode, and one groove wall surface of the inclined chute is formed in the groove bottom surface of the U-shaped groove.
11. A pipe forming machine according to any one of claims 1 to 7, wherein:
the axis of the flanging die hole is obliquely arranged relative to the opening and closing directions of the two clamping dies, and is obliquely arranged along the direction of the inner end of the flanging die hole pointing to the outer end, and the axis is obliquely arranged towards the exiting direction of the clamping die sliding block exiting from the die clamping state.
12. The pipe forming machine of claim 11, wherein:
the stamping direction of the forming stamping die of the flattening forming device is parallel to the opening and closing directions of the two clamping dies;
the smaller included angle between the axis and the opening and closing directions of the two clamping dies is equal to the side inclination angle of the side punching flanging structure of the pipe fitting, and the side inclination angle is the smaller included angle between the axis of the side punching flanging structure and the punching direction;
the pipe fitting processing and forming machine comprises a feeding device, a flaring device and a discharging device; along the advancing direction of the pipe fitting in the treatment process, the feeding device, the flaring device, the side punching flanging device, the flattening forming device and the discharging device are sequentially arranged on the frame.
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| CN201711226479.0A CN108043903B (en) | 2017-11-29 | 2017-11-29 | Pipe fitting processing forming machine |
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| CN201711226479.0A CN108043903B (en) | 2017-11-29 | 2017-11-29 | Pipe fitting processing forming machine |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109433881A (en) * | 2018-12-14 | 2019-03-08 | 安徽众汇制冷有限公司 | A kind of oil eliminator pulls out hole equipment |
| CN109940104B (en) * | 2019-02-28 | 2024-03-26 | 浙江长兴和良智能装备有限公司 | Forming method, forming device and forming system of three-way pipe |
| CN110695113B (en) * | 2019-11-05 | 2020-10-30 | 含山县荣源金属制品有限公司 | Automatic tee joint pressing device |
| CN110899370A (en) * | 2019-12-23 | 2020-03-24 | 广东顺德安耐特金属科技有限公司 | Production device and production method for pressing tee body |
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