CN111842613B - Continuous processing die and forming method for chair leg pipe fitting - Google Patents

Continuous processing die and forming method for chair leg pipe fitting Download PDF

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Publication number
CN111842613B
CN111842613B CN202010617808.XA CN202010617808A CN111842613B CN 111842613 B CN111842613 B CN 111842613B CN 202010617808 A CN202010617808 A CN 202010617808A CN 111842613 B CN111842613 B CN 111842613B
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China
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pipe
pipe fitting
die
station
forming
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CN111842613A (en
Inventor
张翼飞
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Anglide Furniture Co ltd
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Anglide Furniture Co ltd
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Priority to CN202010617808.XA priority Critical patent/CN111842613B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D35/00Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • B21D35/002Processes combined with methods covered by groups B21D1/00 - B21D31/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/02Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/14Dies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/08Dies with different parts for several steps in a process

Abstract

The invention belongs to the technical field of dies, and particularly relates to a continuous machining die for chair leg pipe fittings. The problems that the design is unreasonable and the like in the prior art are solved. The chair leg pipe fitting continuous processing die comprises pipe fitting placing stations which are sequentially arranged according to a processing sequence and used for placing unprocessed pipe fittings; the pipe fitting forming station is used for forming two ends of the pipe fitting; the pipe fitting length fixing station is used for cutting off the redundant length of the end parts of the two ends of the pipe fitting; the pipe finishing station is used for finishing the pipe after the pipe length fixing station to obtain a chair leg pipe finished product; and the pipe moving mechanism is used for moving the pipe from the previous station to the next station according to the station sequence. The application has the advantages that: the design is more reasonable and the production and processing efficiency is improved.

Description

Continuous processing die and forming method for chair leg pipe fitting
Technical Field
The invention belongs to the technical field of dies, and particularly relates to a continuous machining die and a forming method for chair leg pipe fittings.
Background
The chair leg is provided with five-star chair legs, wherein the middle tube of one of the five-star chair legs is connected with the five single legs by welding.
Its installation in order to be convenient for the gyro wheel of monopod to and the structural strength who improves the monopod, generally carry out the contour machining of arc section in the outer end of monopod, its welded fastening that can be convenient for coupling nut and so on parts behind the contour machining, the oval being convenient for of other end shaping is connected with the center seat.
The existing single piece needs to be subjected to multiple processes, such as forming, fixing length, shaping and the like, the multiple processes are generally processed on different equipment by adopting independent stations, and the mode is the most traditional mode, so that the efficiency is low, and the consistency of products is poor.
Disclosure of Invention
The invention aims to solve the problems and provides a continuous processing die and a forming method for a chair leg pipe fitting, which can solve the technical problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
the chair leg pipe fitting continuous processing die comprises a plurality of die bodies which are sequentially arranged according to the processing sequence
A pipe placing station for placing unprocessed pipes;
the pipe fitting forming station is used for forming two ends of the pipe fitting;
the pipe fitting length fixing station is used for cutting off the redundant length of the end parts of the two ends of the pipe fitting;
the pipe finishing station is used for finishing the pipe after the pipe length fixing station to obtain a chair leg pipe finished product;
and the pipe moving mechanism is used for moving the pipe from the previous station to the next station according to the station sequence.
In the chair leg pipe continuous processing die, the pipe length fixing stations comprise a front length fixing station and a rear length fixing station, the front length fixing station is used for cutting off the redundant length of the arc section of the formed pipe, and the rear length fixing station is used for cutting off the redundant length of the end part of the oval section of the formed pipe.
In the chair leg pipe fitting continuous processing die, the pipe fitting placing station, the pipe fitting forming station, the pipe fitting length fixing station and the pipe fitting finishing station are arranged on the fixing plate.
In the continuous processing die for the chair leg pipe fittings, the lower surface of the fixing plate is connected with the bottom plate through the supporting mechanism.
In the above continuous processing mold for chair leg pipe fittings, the pipe fitting moving mechanism includes a moving seat fixed on the upper surface of the bottom plate, the moving direction of the moving seat is the sequential arrangement direction of the stations, a rectangular through hole is arranged in the central region of the fixed plate, a lifting driver penetrating through the rectangular through hole is arranged on the moving seat, and a material moving frame connected to the lifting driver is arranged on the moving seat, the material moving frame is located above the upper surface of the fixed plate, the material moving frame can be lifted to obtain the pipe fitting and release the pipe fitting, and the moving seat moves to drive the material moving frame to move so as to move the pipe fitting from the previous station to the next station.
In foretell chair foot pipe fitting continuous type processing mould, the pipe fitting place the station including place down quiet mould and be located the lift movable mould of placing down quiet mould top, thereby the lift movable mould descends and places down the pipe fitting centre gripping on the quiet mould of quiet mould cooperation will placing down.
In the chair leg pipe continuous processing die, the pipe forming station comprises a lower forming male die and a lifting forming female die positioned above the lower forming male die, and the lifting forming female die descends to be matched with the lower forming male die so as to form one end of the pipe.
In the chair leg pipe fitting continuous processing die, the front fixed length station comprises a lower support die supported in the middle of the pipe fitting, an upper lifting die positioned above the lower support die, a first vertical block positioned at one end of the pipe fitting far away from the formed end of the pipe fitting, a first horizontal extending stepped shaft which is arranged on the first vertical block in a penetrating way and can be opposite to the first vertical block, a first driver connected with the first horizontal extending stepped shaft and driving the first horizontal extending stepped shaft to be inserted into one end of the pipe fitting far away from the formed end of the pipe fitting, an inner side concave fixed die positioned at the inner side of the formed end of the pipe fitting, and an outer punching translation die positioned at the outer side of the formed end of the pipe fitting, wherein one side of the outer punching translation die close to the pipe fitting is provided with an arc concave surface matched with the outer side of the formed end of the pipe fitting, and the outer punching translation die is connected with the first translation driver, the inner concave surface of one end of the formed pipe is matched with the inner concave fixed die, and the first translation driver drives the outer punching translation die to move towards the end of the formed pipe and cut off the excess length.
In the chair leg pipe fitting continuous processing die, the rear fixed length station comprises a horizontal end positioning plate positioned at one end of the pipe fitting processed by the front fixed length station, a concave-convex holding device for holding the end of the pipe fitting processed by the front fixed length station against the upper surface of the horizontal end positioning plate, a second fixed female die positioned at the other end of the pipe fitting, a lifting compression die positioned above the second fixed female die, a driving upper die positioned above the lifting compression die and vertically and slidably connected with the lifting compression die, a vertical stamping knife vertically and slidably connected with the lifting compression die and downward cutting edges of the vertical stamping knife, the upper end of the vertical stamping knife is connected with the driving upper die, an inner concave surface reference die positioned at the inner side of one end of the circular arc section of the pipe fitting, and an outer convex surface holding die positioned at the outer side of the inner concave surface reference die, the outer convex surface holding die is connected with the second driver.
In foretell chair foot pipe fitting continuous type processing mould, the pipe fitting finishing station include the vertical piece of second and wear to establish on the vertical piece of second and can be relative the finishing axle of the vertical piece horizontal migration of second, the one end of finishing axle stretches into to the pipe fitting through the second translation driver and keeps away from inside its one end by the shaping processing, still including being located the inboard concave surface finishing mould of pipe fitting circular arc section one end inboard to and be located the outer convex surface finishing mould in the inboard concave surface finishing mould outside, outer convex surface finishing mould and third driver are connected.
The method for continuously forming the chair leg pipe fitting adopts the chair leg pipe fitting continuous forming die and comprises the following steps:
s1, placing the unprocessed pipe fitting on a pipe fitting placing station;
s2, moving the unprocessed pipe on the pipe placing station and transferring the unprocessed pipe to a pipe forming station, wherein the pipe forming station forms and processes two ends of the unprocessed pipe, and one end of the pipe is formed into an arc shape, and the other end of the pipe is formed into an oval shape;
s3, transferring the pipe processed in the step S2 to a pipe fixed-length station, cutting off the redundant length of the end part of the arc section of the pipe, and cutting off the redundant length of the oval section of the pipe;
and S4, transferring the pipe fitting obtained in the step S3 to a pipe fitting finishing station, and synchronously finishing the arc section and the oval section of the pipe fitting by the pipe fitting finishing station, namely finishing the forming processing of the pipe fitting.
Compared with the prior art, the continuous processing die for the chair leg pipe fitting has the advantages that:
utilize the mode of integration in an organic whole, it can leave out the scheduling process between equipment and the equipment to and can improve production efficiency, reduce operative employee's number by a wide margin, reduced enterprise's production human cost, simultaneously, the interval and continuous processing, it can improve the uniformity of product processing, product processingquality is stable and compound enterprise's production requirement, in addition, can also be applicable to large batch production and processing, and the design is more reasonable.
Drawings
Fig. 1 is a schematic top view of a processing mold according to the present invention.
Fig. 2 is a schematic perspective view of a processing mold according to the present invention.
Fig. 3 is a schematic structural view of a processing die provided by the present invention.
Fig. 4 is a schematic view of the present invention with a tube in each station of the die.
In the figure, a pipe placing station 1, a lower static die 10, a lifting movable die 11, a pipe forming station 2, a lower forming convex die 20, a lifting forming concave die 21, a lower elliptical die 22, an upper elliptical die 23, a mandrel 24, a pipe length fixing station 3, a front length fixing station 30, a lower supporting die 301, a lifting die 302, a first vertical block 303, a first horizontal extension stepped shaft 304, a first driver 305, an outer punching translation die 306, an inner concave fixed die 307, a first translation driver 308, a rear length fixing station 31, a horizontal end positioning plate 310, a concave-convex holding device 311, a second fixed concave die 312, a lifting pressing die 313, a driving upper die 314, a vertical punching knife 315, an inner concave reference die 316, an outer convex holding die 317, a second driver 318, a pipe finishing station 4, a second vertical block 40, a finishing shaft 41, a second translation driver 42, an inner concave finishing die 43, an outer convex finishing die 44, a lifting die 305, a lifting die 302, a lifting die and a lifting die 302, A third driver 45, a pipe fitting moving mechanism 5, a moving seat 50, a lifting driver 51, a moving rack 52, a guide rail 53, a fixed plate 6, a rectangular through hole 60 and a bottom plate 7.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 and 4, the chair leg pipe fitting continuous processing die comprises pipe fitting placing stations 1 which are sequentially arranged according to a processing sequence and used for placing unprocessed pipe fittings;
a pipe forming station 2 for forming two ends of the pipe;
the pipe fitting length fixing station 3 is used for cutting off the redundant length of the end parts of the two ends of the pipe fitting;
the pipe finishing station 4 is used for finishing the pipe after the pipe length fixing station 3 to obtain a chair leg pipe finished product;
and the pipe moving mechanism 5 is used for moving the pipe from the previous station to the next station according to the station sequence.
The pipe placing station 1, the pipe forming station 2, the pipe length fixing station 3 and the pipe finishing station 4 are arranged on the fixing plate 6.
As shown in figures 2 and 3 of the drawings,
the lower surface of the fixed plate 6 is connected with a bottom plate 7 through a supporting mechanism.
The supporting mechanism comprises two rows of supporting plates arranged on the upper surface of the bottom plate 7, and the pipe fitting moving mechanism 5 is arranged between the two rows of supporting plates.
Utilize the mode of integration in an organic whole, it can leave out the scheduling process between equipment and the equipment to and can improve production efficiency, reduce operative employee's number by a wide margin, reduced enterprise's production human cost, simultaneously, the interval and continuous processing, it can improve the uniformity of product processing, product processingquality is stable and compound enterprise's production requirement, in addition, can also be applicable to large batch production and processing, and the design is more reasonable.
Further, the pipe placing station 1 comprises a lower static mold 10 and a lifting movable mold 11 located above the lower static mold 10, and the lifting movable mold 11 descends to cooperate with the lower static mold 10 to clamp the pipe on the lower static mold 10.
Further, the pipe forming station 2 comprises a lower forming male die 20 and a lifting forming female die 21 located above the lower forming male die 20, the lifting forming female die 21 is connected with a lifting head of the punch, and the lifting forming female die 21 descends to be matched with the lower forming male die 20 so as to form one end of the pipe into an arc shape. A vertical guide structure is arranged between the lifting forming female die 21 and the lower forming male die 20, the vertical guide structure comprises two vertical guide rods arranged on the lower forming male die 20, and guide holes for the upper ends of the vertical guide rods to be inserted one by one are formed in the lifting forming female die 21 so as to improve the lifting stability of the lifting forming female die 21.
Secondly, the end part of the lower forming convex die 20 close to the circular arc section of the pipe fitting is provided with a vertical guide plate 25, and the lifting forming concave die 21 is provided with a guide groove 26 which is in sliding connection with the vertical guide plate 25, so that the lifting stability of the lifting forming concave die 21 is further improved.
Secondly, the pipe forming station 2 further comprises an oval forming mechanism for processing one end of the pipe far away from the end of the pipe to be formed into an arc section into an oval shape, the oval forming mechanism comprises a lower oval die 22, an upper oval die 23 positioned above the lower oval die 22, the upper oval die 23 is connected with a punch lifting head, a mandrel 24 with one end extending into the lower oval die 22 from the outer end of the lower oval die 22 is connected with a mandrel driving cylinder or oil cylinder, one end of the unprocessed pipe is placed into the lower oval die 22, the upper oval die 23 descends to be matched with the lower oval die 22, and the mandrel 24 at the moment is inserted into the unprocessed pipe to provide stress support in the pipe forming process.
During processing, an elliptical section is processed firstly, then the mandrel is drawn out, the upper elliptical die 23 is loosened properly, then the lower forming convex die 20 and the lifting forming concave die 21 begin to process the arc section, and in the process of processing the arc section, the elliptical section is separated from the lower elliptical die 22 due to bending of the pipe fitting, so that the arc section is processed conveniently.
Further, the pipe fitting length fixing station 3 comprises a front length fixing station 30 and a rear length fixing station 31, the front length fixing station 30 is used for cutting off the redundant length of the circular arc section after the pipe fitting is formed, and the rear length fixing station 31 is used for cutting off the redundant length of the end part of the oval section after the pipe fitting is formed.
Specifically, the front length fixing station 30 includes a lower support die 301 supported in the middle of the pipe, and an upper lifting die 302 located above the lower support die 301, the upper lifting die 302 descends to cooperate with the lower support die 301 to restrain and fix the pipe, the lower surface of the upper lifting die 302 is connected with two parallel limiting columns 309, the top of the lower support die 301 is provided with a cantilever support portion 3010, a space formed between the two limiting columns 309 is slightly larger than the width of the cantilever support portion 3010, and the cantilever support portion 3010 is located between the two limiting columns 309 after the upper lifting die 302 descends, so as to form restraint.
The pipe fitting forming machine further comprises a first vertical block 303 positioned at one end of the pipe fitting far away from the formed end, a first horizontal extending stepped shaft 304 which is arranged on the first vertical block 303 in a penetrating way and can be opposite to the first vertical block 303, the first horizontal extending stepped shaft 304 is connected with a first driver 305, the first driver 305 drives the first horizontal extending stepped shaft 304 to be inserted into one end of the pipe fitting far away from the formed end, the first driver 305 is an air cylinder or an oil cylinder, the pipe fitting forming machine further comprises an inner side concave fixed die 307 positioned at the inner side of the formed end of the pipe fitting, the lower side of the inner side concave fixed die 307 is provided with a chamfer angle to provide a side cutting tool to avoid, an outer punching translation die 306 positioned at the outer side of the formed end of the pipe fitting, one side, close to the pipe fitting, of the outer punching translation die 306 is provided with an arc concave surface matched with the outer side of the formed end of the pipe fitting, the outer punching translation die 306 is connected with the first translation driver 308, the first translation driver 308 is an air cylinder or an oil cylinder, the inside concave surface of the formed end of the pipe is matched with the inside concave fixed die 307 and the first translation driver 308 drives the outer punching translation die 306 to move towards the formed end of the pipe and cut off the excess length.
A first horizontal guide structure is arranged between the external punching translation die 306 and the fixed plate. The first horizontal guide structure comprises two first guide rods penetrating through the fixing seat of the fixing plate, and first guide holes for the first guide rods to be inserted one by one are formed in the outer punching translation die 306, so that the smoothness and the stability of the movement of the outer punching translation die 306 are improved.
Secondly, one side of the inner concave fixed mould 307 close to the lower supporting mould 301 is provided with a first inclined slope surface, the lower end of one side of each limiting column 309 close to the inner concave fixed mould 307 is provided with a second inclined slope surface 3090, and the first inclined slope surface and the second inclined slope surface are coincided so as to explain that the upper lifting mould 302 is descended to the right position.
The first horizontal stepped shaft 304 is inserted into the elliptical section so as to position one end of the pipe, and axial displacement of the pipe caused by axial impact on the pipe when excess materials are cut off is avoided. The maximum outer diameter of the first horizontal extension stepped shaft 304 is larger than the inner diameter of the elliptical section of the pipe fitting, and meanwhile, the first horizontal extension stepped shaft 304 can play a certain shaping role.
Secondly, the rear fixed-length station 31 comprises a horizontal end positioning plate 310 positioned at one end of the pipe processed by the front fixed-length station 30, the end surface of one end of the pipe processed by the front fixed-length station 30 abuts against the upper surface of the horizontal end positioning plate 310, a concave-convex holding device 311 for holding the end of the pipe processed by the front fixed-length station 30, the concave-convex holding device 311 comprises an inner arc-shaped convex surface for fitting with the inner concave surface at one end of the pipe formed, and an outer translation block positioned at the outer side of the inner arc-shaped convex surface, an outer arc-shaped concave surface for fitting with the outer convex surface at one end of the pipe formed is arranged on the outer translation block, the outer translation block is connected with a cylinder or an oil cylinder so as to hold the end of the pipe formed, a second fixed concave die 312 positioned at the other end of the pipe, a lifting compression die 313 positioned above the second fixed concave die 312, and a driving upper die 314 positioned above the lifting compression die 313 and vertically and slidably connected with the lifting compression die 313, the driving upper die 314 is provided with two vertical guide rods, the lifting and pressing die 313 is provided with guide holes for the vertical guide rods to be inserted into one by one, so as to ensure the verticality of the vertical punching knife 315 which is connected with the driving upper die 314 after the lifting and pressing die 313 is pressed, the driving upper die 314 is connected with the lifting head of the punch press, a vertical punching knife 315 vertically and slidably connected with the lifting and pressing die 313 penetrates through the lifting and pressing die 313, an avoiding hole for the lower end of the vertical punching knife 315 to enter is arranged on the fixing plate, the avoiding hole can avoid and discharge waste materials, the cutting edge of the vertical punching knife 315 faces downwards, the upper end of the vertical punching knife 315 is connected with the driving upper die 314, the device also comprises an inner side concave surface reference die 316 positioned at the inner side of one end of the circular arc section of the pipe fitting, and an outer convex surface holding die 317 located outside the inner concave surface reference die 316, the outer convex surface holding die 317 being connected with a second driver 318. The second actuator 318 is an air cylinder or a hydro cylinder.
Secondly, be equipped with second guide structure between outer convex surface enclasping mould 317 and the fixed plate, second guide structure is including fixing two second guide blocks on the fixed plate, and second guide block transverse section is the L shape, forms the font of following a letter in the corner between two second guide blocks and leads the space, and outer convex surface enclasping mould 317 arranges in the font of following a letter in the corner and both clearance fit.
Further, pipe finishing station 4 includes second vertical piece 40 and wears to establish on second vertical piece 40 and can be relative to second vertical piece 40 horizontal migration's finishing axle 41, and the one end of finishing axle 41 stretches into inside the oval section of pipe fitting through second translation driver 42, still includes the inboard concave surface finishing die 43 that is located pipe circular arc section one end inboard to and the outer convex surface finishing die 44 that is located the inboard concave surface finishing die 43 outside, outer convex surface finishing die 44 links with third driver 45. Both the second translation actuator 42 and the third actuator 45 are air cylinders or oil cylinders.
Secondly, a lower elliptical bearing die 46 positioned below the finishing shaft 41 and a lower pressing elliptical die 47 positioned above the lower elliptical bearing die 46 are arranged on the fixing plate, and the lower pressing elliptical die 47 is connected with a lifting head of the punch press to realize the compaction of the elliptical section.
The finishing shaft 41 is finally inserted into the oval section of the pipe fitting, ensuring the finishing quality.
In addition, a third guide structure is arranged between the outer convex surface finishing die 44 and the fixing plate, and the structure of the third guide structure is the same as that of the second guide structure.
Further, the pipe moving mechanism 5 includes a moving seat 50 fixed on the upper surface of the bottom plate 7, and the moving direction of the moving seat 50 is the sequential arrangement direction of the stations, a rectangular through hole 60 is provided in the central region of the fixed plate 6, a lifting driver 51 penetrating through the rectangular through hole 60 is provided on the moving seat 50, and a moving frame 52 connected to the lifting driver 51, the moving frame 52 is located above the upper surface of the fixed plate 6, the moving frame 52 is lifted to obtain the pipe and release the pipe, and the moving seat 50 moves to drive the moving frame 52 to move so as to move the pipe from the previous station to the next station.
During the forming process, the material moving rack 52 is located below the middle part of the pipe, and when the material needs to be moved, the material moving rack 52 is driven to ascend.
The material moving frame 52 comprises a bar beam, and five receiving notches are formed in the upper surface of the bar beam and located in the middle of the pipe to ensure that the pipe is stably lifted, translated and lowered to be released.
The lifting driver 51 is a cylinder or an oil cylinder with multiple telescopic rods. So as to avoid the unstable phenomenon that the single telescopic rod needs to be designed for guiding.
Secondly, the movable base 50 is slidably arranged on a guide rail 53 on the upper surface of the bottom plate 7, and an air cylinder or an oil cylinder connected with the movable base 50 is arranged on the upper surface of the bottom plate 7, so that the material can be moved in two directions of lifting and moving by feeding water.
The lift of this embodiment all realizes through the lift head on the punch press, of course, can install a horizontal connection piece on the lift head to be connected with the part that needs to go up and down in this embodiment, form unified lift control.
The method for continuously forming the chair leg pipe fitting adopts the chair leg pipe fitting continuous forming die and comprises the following steps:
s1, placing the unprocessed pipe fitting on a pipe fitting placing station;
s2, moving the unprocessed pipe on the pipe placing station and transferring the unprocessed pipe to a pipe forming station, wherein the pipe forming station forms and processes two ends of the unprocessed pipe, and one end of the pipe is formed into an arc shape, and the other end of the pipe is formed into an oval shape;
s3, transferring the pipe processed in the step S2 to a pipe fixed-length station, cutting off the redundant length of the end part of the arc section of the pipe, and cutting off the redundant length of the oval section of the pipe;
and S4, transferring the pipe fitting obtained in the step S3 to a pipe fitting finishing station, and synchronously finishing the arc section and the oval section of the pipe fitting by the pipe fitting finishing station, namely finishing the forming processing of the pipe fitting.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims (2)

1. The continuous processing die for chair leg pipe fittings is characterized by comprising a plurality of processing dies which are sequentially arranged according to the processing sequence
A pipe placing station (1) for placing unprocessed pipes;
the pipe fitting forming station (2) is used for forming two ends of the pipe fitting, one end of the pipe fitting is formed into an arc shape, and the other end of the pipe fitting is formed into an oval shape;
the pipe fitting length fixing station (3) is used for cutting off the redundant length of the end parts of the two ends of the pipe fitting;
the pipe finishing station (4) is used for finishing the pipe after the pipe length fixing station (3) to obtain a chair leg pipe finished product;
the pipe fitting moving mechanism (5) is used for moving the pipe fitting from a previous station to a next station according to the sequence of the stations;
the pipe fitting length fixing station (3) comprises a front length fixing station (30) and a rear length fixing station (31), wherein the front length fixing station (30) is used for cutting off the redundant length of the arc section after the pipe fitting is formed, and the rear length fixing station (31) is used for cutting off the redundant length of the end part of the oval section after the pipe fitting is formed;
the pipe placing station (1), the pipe forming station (2), the pipe length fixing station (3) and the pipe finishing station (4) are arranged on the fixing plate (6); the lower surface of the fixed plate (6) is connected with a bottom plate (7) through a supporting mechanism;
the pipe fitting moving mechanism (5) comprises a moving seat (50) fixed on the upper surface of a bottom plate (7), the moving direction of the moving seat (50) is the sequential arrangement direction of the stations, a rectangular through hole (60) is formed in the central region of a fixed plate (6), a lifting driver (51) penetrating through the rectangular through hole (60) is arranged on the moving seat (50), and a moving frame (52) connected to the lifting driver (51), the moving frame (52) is located above the upper surface of the fixed plate (6), the moving frame (52) can lift to obtain a pipe fitting and release the pipe fitting, and the moving seat (50) moves to drive the moving frame (52) to move so as to transfer the pipe fitting from the previous station to the next station;
the pipe placing station (1) comprises a lower static placing die (10) and a lifting movable die (11) positioned above the lower static placing die (10), and the lifting movable die (11) descends to be matched with the lower static placing die (10) so as to clamp the pipe placed on the lower static placing die (10);
the pipe fitting forming station (2) comprises a lower forming male die (20) and a lifting forming female die (21) positioned above the lower forming male die (20), and the lifting forming female die (21) descends to be matched with the lower forming male die (20) so as to form one end of the pipe fitting into an arc shape; the pipe fitting forming machine also comprises an ellipse forming mechanism which is used for processing one end of the pipe fitting, which is far away from the formed arc section, into an ellipse; the elliptical forming mechanism comprises a lower elliptical die, an upper elliptical die positioned above the lower elliptical die and a mandrel, wherein one end of the mandrel extends into the lower elliptical die from the outer end of the lower elliptical die;
preceding fixed length station (30) including supporting lower support mould (301) in the pipe fitting middle part, be located lower support mould (301) top lift mould (302), it descends and supports mould (301) cooperation with down and restrict fixed the pipe fitting to go up to lift mould (302), still include and be located the pipe fitting and keep away from its by first vertical piece (303) of shaping one end, wear to establish on first vertical piece (303) and can stretch step shaft (304) relatively the first level of first vertical piece (303), first level is stretched step shaft (304) and is connected and first driver (305) drive first level and is stretched step shaft (304) and insert to the pipe fitting and keep away from it by inside of shaping one end, still including inboard concave surface fixed mould (307) that is located pipe fitting by shaping one end inboard, and be located the outer punching cutting translation mould (306) of pipe fitting by shaping one end outside, one side that outer punching cutting translation mould (306) are close to the pipe fitting is equipped with the arc and outer punching that matches with the pipe fitting by the concave surface outside of shaping end outside and outer punching translation mould (306) The cutting translation die (306) is connected with a first translation driver (308), the inner concave surface of one end, formed by the pipe fitting, of the pipe fitting is matched with the inner concave fixed die (307), and the first translation driver (308) drives the outer punching translation die (306) to move towards one end, formed by the pipe fitting, of the pipe fitting and cuts off the excess length;
the rear fixed-length station (31) comprises a horizontal end positioning plate (310) positioned at one end of the pipe processed by the front fixed-length station (30), a concave-convex holding device (311) for holding one end of the pipe processed by the front fixed-length station (30), a second fixed female die (312) positioned at the other end of the pipe, a lifting compression die (313) positioned above the second fixed female die (312), a driving upper die (314) positioned above the lifting compression die (313) and vertically and slidably connected with the lifting compression die (313), a vertical stamping knife (315) vertically and slidably connected with the lifting compression die (313) penetrates through the lifting compression die (313), the cutting edge of the vertical stamping knife (315) faces downwards, the upper end of the vertical stamping knife (315) is connected with the driving upper die (314), the pipe fitting further comprises an inner side concave surface reference die (316) positioned on the inner side of one end of the circular arc section of the pipe fitting, and an outer convex surface holding die (317) positioned on the outer side of the inner side concave surface reference die (316), wherein the outer convex surface holding die (317) is connected with a second driver (318);
pipe fitting finishing station (4) include second vertical piece (40) and wear to establish on second vertical piece (40) and can be relative second vertical piece (40) horizontal migration's finishing axle (41), the one end of finishing axle (41) is passed through second translation driver (42) and is stretched into to the oval section of pipe fitting inside, still including being located pipe fitting circular arc section one end inboard concave surface finishing die (43) to and be located the outer convex surface finishing die (44) in inboard concave surface finishing die (43) outside, outer convex surface finishing die (44) and third driver (45) are connected.
2. The chair leg pipe fitting continuous forming method is characterized in that the chair leg pipe fitting continuous forming method of claim 1 is adopted, and comprises the following steps:
s1, placing the unprocessed pipe fitting on a pipe fitting placing station;
s2, moving the unprocessed pipe on the pipe placing station and transferring the unprocessed pipe to a pipe forming station, wherein the pipe forming station forms and processes two ends of the unprocessed pipe, and one end of the pipe is formed into an arc shape, and the other end of the pipe is formed into an oval shape;
s3, transferring the pipe processed in the step S2 to a pipe fixed-length station, cutting off the redundant length of the end part of the arc section of the pipe, and cutting off the redundant length of the oval section of the pipe;
and S4, transferring the pipe fitting obtained in the step S3 to a pipe fitting finishing station, and synchronously finishing the arc section and the oval section of the pipe fitting by the pipe fitting finishing station, namely finishing the forming processing of the pipe fitting.
CN202010617808.XA 2020-06-30 2020-06-30 Continuous processing die and forming method for chair leg pipe fitting Active CN111842613B (en)

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Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3529931B2 (en) * 1996-03-08 2004-05-24 矢崎総業株式会社 Composite integrated mold for continuous molding and continuous manufacturing equipment for molded products
CN204620838U (en) * 2015-03-24 2015-09-09 浙江龙生汽车部件股份有限公司 The progressive die of installation foot before making automotive seat
CN204620830U (en) * 2015-03-24 2015-09-09 浙江龙生汽车部件股份有限公司 The progressive die of installation foot after making automotive seat
CN204620835U (en) * 2015-03-24 2015-09-09 浙江龙生汽车部件股份有限公司 Make the progressive die of slide rail on automotive seat
CN206474903U (en) * 2017-02-16 2017-09-08 东莞市先行者智能设备科技有限公司 A kind of seat pin central tube full automatic processing device
CN208450367U (en) * 2018-05-30 2019-02-01 苏州吉昕泰金属制品有限公司 The automobile tube beam supporting element continuous stamping die for having material strip accurate limiting mechanism
CN209255624U (en) * 2018-12-01 2019-08-16 无锡烁然机械科技有限公司 The progressive die for installation foot behind shaping armchair outside
CN210450556U (en) * 2019-06-28 2020-05-05 常州东仕豪机械制造有限公司 Continuous mould of stay tube

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