CN104492920B - device for punching square tube - Google Patents

device for punching square tube Download PDF

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Publication number
CN104492920B
CN104492920B CN201410490234.9A CN201410490234A CN104492920B CN 104492920 B CN104492920 B CN 104492920B CN 201410490234 A CN201410490234 A CN 201410490234A CN 104492920 B CN104492920 B CN 104492920B
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China
Prior art keywords
punching
die
guide
pressure cylinder
gas
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CN201410490234.9A
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Chinese (zh)
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CN104492920A (en
Inventor
喻晓庆
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SHANGHAI AOLIN AUTO SAFETY SYSTEM Co Ltd
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SHANGHAI AOLIN AUTO SAFETY SYSTEM Co Ltd
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Priority to CN201410490234.9A priority Critical patent/CN104492920B/en
Publication of CN104492920A publication Critical patent/CN104492920A/en
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Classifications

    • 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
    • B21D28/24Perforating, i.e. punching holes
    • B21D28/34Perforating tools; Die holders
    • 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
    • B21D28/24Perforating, i.e. punching holes
    • B21D28/28Perforating, i.e. punching holes in tubes or other hollow bodies

Abstract

The invention relates to devices for punching square pipes, which comprises a gas-liquid pressure cylinder (1), an electric cabinet (2), a frame (3), a workbench (4) and a punching die (6), wherein the frame (3) is provided with the workbench (4), the gas-liquid pressure cylinder (1), the electric cabinet (2) and the punching die (6) are all arranged on the workbench (4), the gas-liquid pressure cylinder (1) is connected with the punching die (6) through a piston rod (5), and a connecting circuit is arranged between the electric cabinet (2) and the gas-liquid pressure cylinder (1).

Description

device for punching square tube
Technical Field
The invention belongs to the technical field of machining, and relates to devices for punching square pipes.
Background
At present, most punching machines for punching parts can only punch layers of plates once, because the punching force of the traditional punching machine reaches a peak value when the plates are punched, secondary punching cannot be continued after the punching is finished, and because a square tube is made of two layers of plates in the punching process, each layer of plate of the square tube needs to be punched respectively, and the -type punching machine can only punch layers of plates once, which not only consumes excessive time and labor, but also can cause hole position errors after secondary punching, so that product leakage is generated, the requirements of customers cannot be met, and great economic loss is brought to manufacturers.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides devices for punching square pipes by using a gas-liquid pressure cylinder as a punching power source.
The purpose of the invention can be realized by the following technical scheme:
A device for punching a square tube, the device includes gas-liquid pressure cylinder, electric cabinet, frame, workstation and punching die, the frame on be equipped with the workstation, gas-liquid pressure cylinder, electric cabinet, punching die all set up on the workstation, gas-liquid pressure cylinder be connected with punching die through the piston rod, electric cabinet and gas-liquid pressure cylinder between be equipped with connecting circuit.
The punching die comprises an upper punching die, a lower punching die, guide rods and a base, wherein the base is welded on a workbench, the guide rods are pairs and are symmetrically arranged at the left end and the right end of the base respectively, guide holes are symmetrically formed in the left end and the right end of the upper punching die, the bottom ends of the guide rods are fixed on the base through gaskets and bolts, the top ends of the guide rods are inserted into the guide holes in the upper punching die, and the lower punching die is located between the two guide rods and fixed on the base.
The lower die comprises a lower die bottom plate, limiting blocks and locking fixtures, the lower surface of the lower die bottom plate is fixed on the base, limiting blocks are arranged at the left end and the right end of the upper surface respectively, a plurality of circular guide grooves are formed in the surface of each limiting block, and the locking fixtures are arranged between the two limiting blocks.
The inside of locking clamp seted up work piece and pressed from both sides the groove, be equipped with the direction plug in this work piece presss from both sides the groove.
The lower surface of the punching upper die is provided with two punches and a plurality of guide posts, the two punches are longitudinally arranged and are positioned right above the guide core rod, and the guide posts are respectively arranged corresponding to the circular guide grooves on the surface of the limiting block.
And the top end of the guide rod is sleeved with a compression spring and inserted into a guide hole of the punching upper die.
The punching upper die is connected with the piston rod through the die handle.
When the punching die works, the guide posts on the lower surface of the punching upper die are aligned to the circular guide grooves on the surface of the limiting block through the guide rods, the position of the punching upper die is fixed, the square pipe workpiece is inserted into the guide core rod of the locking clamp, the electric cabinet is opened, the gas-liquid pressure cylinder is started, the gas-liquid pressure cylinder pushes the piston rod to move, the piston rod drives the punching upper die to move downwards, two punches on the lower surface of the punching upper die instantly punch holes in the upper layer and the lower layer of the plate material of the square pipe workpiece, after punching is finished, the piston rod drives the punching upper die to move upwards, and the punching upper die returns to the initial position under.
Compared with the prior art, the invention has the following characteristics:
1) compared with an punch press, the pneumatic-hydraulic pressure cylinder is designed by comprehensively utilizing pneumatic and hydraulic transmission characteristics, and has the characteristics of pneumatic low working pressure and convenient operation as well as hydraulic transmission stability;
2) the gas-liquid pressure cylinder is adopted, so that larger output force can be obtained only by using smaller power and energy consumption, and the cost is greatly saved;
3) by adopting the structural design of the guide rod, the guide post, the circular guide groove and the like, the alignment precision between the upper punching die and the lower punching die is greatly improved, so that the punching error of the square pipe workpiece is effectively reduced;
4) because the punching upper die is provided with the two punches, times of punching operation can complete two punching operations, thereby effectively improving the working efficiency and saving the processing time.
Drawings
FIG. 1 is a schematic structural diagram of apparatus for square tube punching according to the present invention;
FIG. 2 is a schematic view of a punching die of apparatus for square tube punching according to the present invention;
the notation in the figure is:
the device comprises a gas-liquid pressure cylinder 1, an electric cabinet 2, a frame 3, a workbench 4, a piston rod 5, a punching die 6, a punching upper die 7, a limiting block 8, a square tube workpiece 9, a guide core rod 10, a base 11, a guide rod 12, a locking clamp 13, a circular guide groove 14, a gasket 15, a guide column 16, a guide hole 17 and a lower die bottom plate 18.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Example (b):
as shown in fig. 1-2, kinds of devices for punching square pipes comprise a gas-liquid pressure cylinder 1, an electric cabinet 2, a frame 3, a workbench 4 and a punching die 6, wherein the frame 3 is provided with the workbench 4, the gas-liquid pressure cylinder 1, the electric cabinet 2 and the punching die 6 are all arranged on the workbench 4, the gas-liquid pressure cylinder 1 is connected with the punching die 6 through a piston rod 5, and a connecting circuit is arranged between the electric cabinet 2 and the gas-liquid pressure cylinder 1.
Punching die 6 is including punching a hole and going up mould 7, lower mould 8 punches a hole, guide bar 12 and base 11, base 11 welds on workstation 4, guide bar 12 is pairs, the symmetry sets up both ends about base 11 respectively, the both ends symmetry is equipped with guide hole 17 about last mould 7 punches a hole, gasket 15 and bolt fastening are passed through to the bottom of guide bar 12 on base 11, the top is inserted and is established in the guide hole 17 of last mould 7 punches a hole, lower mould 8 punches a hole is located between two guide bars 12, and fix on base 11.
The lower die 8 that punches a hole includes lower die bottom plate 18, stopper 8 and locking clamp 13, and lower die bottom plate 18's lower surface is fixed on base 11, and both ends are equipped with stopper 8 respectively about the upper surface, and this stopper 8 is equipped with a plurality of circular guide groove 14 on the surface, and locking clamp 13 sets up between two stoppers 8.
The locking clamp 13 is provided with a workpiece clamping groove therein, and the workpiece clamping groove is provided with a guide core rod 10 therein.
The lower surface of the upper punching die 7 is provided with two punches and a plurality of guide posts 16, the two punches are arranged longitudinally and are positioned right above the guide core rod 10, and the plurality of guide posts 16 are respectively arranged corresponding to the circular guide grooves 14 on the surface of the limiting block 8.
The top end of the guide rod 12 is sleeved with a compression spring and inserted into a guide hole 17 of the upper punching die 7.
The punching upper die 7 is connected with the piston rod 5 through a die shank.
When the punching die works, a guide post 16 on the lower surface of an upper punching die 7 is aligned to a circular guide groove 14 on the surface of a limiting block 8 through a guide rod 12, the position of the upper punching die 7 is fixed, then a square pipe workpiece 9 is inserted into a guide core rod 10 of a locking clamp 13, an electric cabinet 2 is opened, a gas-liquid pressure cylinder 1 is started, the gas-liquid pressure cylinder 1 pushes a piston rod 5 to move, the piston rod 5 drives the upper punching die 7 to move downwards, two punches on the lower surface of the upper punching die 7 instantly punch holes of an upper layer of sheet material and a lower layer of sheet material of the square pipe workpiece 9, after punching is finished, the piston rod 5 drives the upper punching die 7 to move upwards, and the upper punching die 7 returns to an.

Claims (2)

1, devices for punching square pipes, which is characterized by comprising a gas-liquid pressure cylinder (1), an electric cabinet (2), a frame (3), a workbench (4) and a punching die (6), wherein the frame (3) is provided with the workbench (4), the gas-liquid pressure cylinder (1), the electric cabinet (2) and the punching die (6) are all arranged on the workbench (4), the gas-liquid pressure cylinder (1) is connected with the punching die (6) through a piston rod (5), a connecting circuit is arranged between the electric cabinet (2) and the gas-liquid pressure cylinder (1),
the punching die (6) comprises an upper punching die (7), a lower punching die, guide rods (12) and a base (11), the base (11) is welded on a workbench (4), the guide rods (12) are pairs and are symmetrically arranged at the left end and the right end of the base (11) respectively, guide holes (17) are symmetrically arranged at the left end and the right end of the upper punching die (7), the bottom end of each guide rod (12) is fixed on the base (11) through a gasket (15) and a bolt, the top end of each guide rod is inserted into each guide hole (17) of the upper punching die (7), the lower punching die is positioned between the two guide rods (12) and is fixed on the base (11),
the punching lower die comprises a lower die bottom plate (18), limiting blocks (8) and locking clamps (13), the lower surface of the lower die bottom plate (18) is fixed on a base (11), the left end and the right end of the upper surface are respectively provided with limiting blocks (8), the surfaces of the limiting blocks (8) are provided with a plurality of circular guide grooves (14), and the locking clamps (13) are arranged between the two limiting blocks (8);
a workpiece clamping groove is formed in the locking clamp (13), and a guide core rod (10) is arranged in the workpiece clamping groove;
the lower surface of the upper punching die (7) is provided with two punches and a plurality of guide columns (16), the two punches are longitudinally arranged and are positioned right above the guide core rod (10), and the guide columns (16) are respectively arranged corresponding to the circular guide grooves (14) on the surface of the limiting block (8);
the top end of the guide rod (12) is sleeved with a compression spring and inserted into a guide hole (17) of the punching upper die (7);
when the punching die works, the guide posts on the lower surface of the punching upper die are aligned to the circular guide grooves on the surface of the limiting block through the guide rods, the position of the punching upper die is fixed, the square pipe workpiece is inserted into the guide core rod of the locking clamp, the electric cabinet is opened, the gas-liquid pressure cylinder is started, the gas-liquid pressure cylinder pushes the piston rod to move, the piston rod drives the punching upper die to move downwards, two punches on the lower surface of the punching upper die instantly punch holes in the upper layer and the lower layer of the plate material of the square pipe workpiece, after punching is finished, the piston rod drives the punching upper die to move upwards, and the punching upper die returns to the initial position under.
2. apparatus for square tube punching according to claim 1, wherein, the punching upper die (7) is connected with the piston rod (5) through the die handle.
CN201410490234.9A 2014-09-23 2014-09-23 device for punching square tube Active CN104492920B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410490234.9A CN104492920B (en) 2014-09-23 2014-09-23 device for punching square tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410490234.9A CN104492920B (en) 2014-09-23 2014-09-23 device for punching square tube

Publications (2)

Publication Number Publication Date
CN104492920A CN104492920A (en) 2015-04-08
CN104492920B true CN104492920B (en) 2020-01-31

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ID=52934420

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Application Number Title Priority Date Filing Date
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2298108Y (en) * 1997-09-17 1998-11-25 江苏亚星客车集团扬州客车座椅厂 Device for punching on pipe fitting
CN202570955U (en) * 2012-03-16 2012-12-05 上海小虎机械科技有限公司 Square tube punching device
CN203830536U (en) * 2014-04-08 2014-09-17 上海威克迈龙川汽车发动机零件有限公司 Round pipe forming and punching die and equipment all-in-one machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080163662A1 (en) * 2007-01-08 2008-07-10 Dagan Moshe Tube punching and collaring system, device and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2298108Y (en) * 1997-09-17 1998-11-25 江苏亚星客车集团扬州客车座椅厂 Device for punching on pipe fitting
CN202570955U (en) * 2012-03-16 2012-12-05 上海小虎机械科技有限公司 Square tube punching device
CN203830536U (en) * 2014-04-08 2014-09-17 上海威克迈龙川汽车发动机零件有限公司 Round pipe forming and punching die and equipment all-in-one machine

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