CN211707847U - Lower-pressure hydraulic press for internal high-pressure bulging process - Google Patents

Lower-pressure hydraulic press for internal high-pressure bulging process Download PDF

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Publication number
CN211707847U
CN211707847U CN201922008143.8U CN201922008143U CN211707847U CN 211707847 U CN211707847 U CN 211707847U CN 201922008143 U CN201922008143 U CN 201922008143U CN 211707847 U CN211707847 U CN 211707847U
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oil cylinder
loading
entablature
clamping seat
sliding
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CN201922008143.8U
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Chinese (zh)
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宫作范
李忠业
郑铎
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Jilin Zhengxuan Frame Co ltd
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Jilin Zhengxuan Frame Co ltd
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Abstract

A down-pressure hydraulic press for internal high-pressure bulging processes, comprising: bottom end rail, stand, entablature, assembly lifting slide between entablature and bottom end rail, connect lift cylinder, the workstation of slider below between entablature and slider, the improvement of doing is: the middle part of the upper surface of the lower beam is provided with a loading oil cylinder which is pressurized upwards, the workbench is supported on the loading oil cylinder, the lower side of the upper beam is fixed with a downward extending support column, the upper side of the sliding block is provided with a sliding clamping seat, and a horizontal oil cylinder which drives the sliding clamping seat is arranged between the sliding clamping seat and a support member on the sliding block. The utility model has the advantages that: the loading function of the oil cylinder on the upper cross beam in the existing equipment is decomposed to the loading oil cylinder additionally arranged on the lower cross beam. The large-stroke die closing process is formed without large-flow oil supply, the small-stroke loading oil supply time is short, the die loading time is integrally shortened, the production efficiency is improved, and the production cost of workpieces is reduced.

Description

Lower-pressure hydraulic press for internal high-pressure bulging process
The technical field is as follows:
the utility model belongs to the field of mechanical equipment, concretely relates to hydraulic press suitable for interior high pressure forming technology
Background art:
the inner high-pressure bulging is a novel pipe fitting production process, and the process flow is as follows: the workpiece is placed in a die cavity, the pipe fitting is expanded by pressurizing the interior of the pipe blank, and hollow workpieces with various cross-section shapes are formed under the constraint of the die cavity. And (4) internal high-pressure molding, wherein a hydraulic press is required to provide enough mold clamping force. In the conventional internal high pressure forming process, a general hydraulic press having only a cylinder installed at an upper portion of the press to be pressed downward is often used. The working mode is that the oil cylinder pushes the slide block to move downwards to carry out die assembly, and then loading is carried out, so that the die assembly force requirement of the die is met. In the internal high-pressure molding process, a large mold clamping force is needed, and the problem is generally solved by enlarging cylinders or increasing the number of cylinders. Therefore, the amount of pressurized oil filling the oil cylinder is increased, and on the premise that the flow of a hydraulic pump station is not changed, the defects that the mold closing loading speed is low, the production efficiency is influenced, and the product process cost is increased exist. In order to maintain the loading speed of the die in the internal high-pressure forming process, a large-flow hydraulic pump station needs to be configured, which increases the equipment cost of the internal high-pressure forming.
The utility model has the following contents:
the utility model aims at providing a lower pressurization hydraulic press for interior high pressure bulging technology, the contradiction of loading speed and pump station flow is dissolved, above-mentioned shortcoming that exists in the high pressure forming technology including current hydraulic press uses is overcome.
The utility model discloses a hydraulic press includes: the improvement of bottom end rail, assembly at four stands in the bottom end rail four corners, assembly at the entablature of stand upper end, assembly between entablature and bottom end rail with stand or install guide rail complex lifting slide block on the stand, connect lift cylinder, the workstation of slider below between entablature and slider, the preparation of doing is: the hydraulic lifting device is characterized in that an upward pressurized loading oil cylinder is installed on a lower cross beam, a workbench is supported on the loading oil cylinder, at least two downward extending support columns located on different side surfaces of the lifting oil cylinder are fixed on the lower side of the upper cross beam, a sliding clamping seat is installed on the upper side of a sliding block and can move to a position right below the downward extending support columns, and a horizontal oil cylinder for driving the sliding clamping seat is installed between the sliding clamping seat and a support member fixed on the upper side of the sliding block.
The utility model has the advantages that: the loading function of the oil cylinder arranged on the upper cross beam in the existing equipment is decomposed into the loading oil cylinder arranged on the lower cross beam through arranging the large-diameter or increased loading oil cylinder on the lower cross beam, arranging the movable middle beam between the upper cross beam and the lower cross beam and arranging the auxiliary rigid support between the middle beam and the upper cross beam, which is formed by the supporting seat and the sliding clamping seat. Therefore, large-flow oil supply is not needed in the large-stroke die closing process, the small-stroke loading oil supply time is short, the die loading time is shortened on the whole, the production efficiency is improved, the production cost of workpieces is reduced, and the manufacturing cost of equipment is also reduced.
Drawings
Fig. 1 is the overall structure diagram (non-working state) of the hydraulic press of the present invention.
Fig. 2 is a state diagram of the hydraulic press for closing the dies.
Fig. 3 is a state diagram of the slide block locking of the hydraulic press of the utility model.
Fig. 4 is a loading state diagram of the hydraulic machine of the present invention.
Detailed Description
Referring to fig. 1 and 2, the hydraulic machine of the present invention includes: the improvement of bottom end rail 1, assembly at four stands 2 in bottom end rail four corners, assembly at the entablature 3 of stand upper end, assembly install guide rail 8 complex elevator slide 7 on stand 2 between entablature 3 and bottom end rail 1, connect lift cylinder 4 between entablature 3 and slider 7, be located the workstation 5 of slider below, the improvement of doing is: the middle part of the upper surface of the lower beam 1 is provided with a loading oil cylinder 6 which is pressurized upwards, the workbench 5 is connected with the upper end of the loading oil cylinder 6 by a screw rod, the upper side of the slide block 7 is in screw rod connection with the lower end of the lifting oil cylinder 4, and at least two downward extending support columns 9 which are positioned on different sides of the lifting oil cylinder 4 are fixed on the lower side of the upper beam 3. A sliding clamping seat 10 capable of moving to the position right below a downward extending supporting seat column 9 is installed on the upper side of the sliding block 7 through a sliding rail, and a horizontal oil cylinder 12 for driving the sliding clamping seat 10 is installed between the sliding clamping seat 10 and a supporting member 11 fixed on the upper side of the sliding block 7.
The working process of the embodiment is as follows:
referring to fig. 1, a lower die 13 is placed on a workbench 5, and the lower die 13 is locked on the workbench 5 through a T-shaped groove bolt, a pressing plate and a nut; the piston rod of the lifting oil cylinder 4 extends out, the sliding block 7 descends, and after the lower plane of the sliding block 7 is attached to the upper plane of the upper die 14 of the die, the upper die 14 is locked on the lower plane of the sliding block 7 through a T-shaped groove bolt, a pressing plate and a nut.
When the device works, a piston rod of the lifting oil cylinder 4 retracts to drive the sliding block 7 to be lifted together with the upper die 14, a certain opening distance is ensured between the upper die and the lower die, a workpiece is firstly placed in a cavity of the lower die 13, the piston rod of the lifting oil cylinder 4 extends out, the sliding block 7 descends along the sliding rail 8, after the upper die 14 is attached to the lower die 13 (see figure 2), the sliding clamping seat 10 is pushed by the horizontal oil cylinder 12 to transversely move to the lower side of the supporting column 9 (see figure 3), the loading oil cylinder 6 is supplied with oil through a hydraulic system, a cylinder rod extends out to push the working table 5 and the die upwards, the sliding block 7 is pushed upwards, the sliding clamping seat 10 is abutted against the supporting column, and the locking sliding block 7 (see figure 4) is continuously pressed.
And after pressure maintaining is finished, the loading oil cylinder 6 unloads oil, the workbench 5 with the mold descends to an initial position, the cylinder rod of the horizontal oil cylinder 12 retracts to drive the sliding clamping seat 10 to move out of the supporting seat column 9 to the initial position, and then the cylinder rod of the lifting oil cylinder 4 retracts to lift the sliding block 7 and the upper mold 14 and take out the formed workpiece from the cavity of the lower mold 13.

Claims (1)

1. A down-pressure hydraulic press for internal high-pressure bulging processes, comprising: the bottom end rail, assemble four stands in the bottom end rail four corners, assemble at the entablature of stand upper end, assemble between entablature and bottom end rail with the stand or install guide rail complex lifting slide block on the stand, connect lift cylinder, the workstation of slider below between entablature and slider, characterized by: the hydraulic lifting device is characterized in that an upward pressurized loading oil cylinder is installed on a lower cross beam, a workbench is supported on the loading oil cylinder, at least two downward extending support columns located on different side surfaces of the lifting oil cylinder are fixed on the lower side of the upper cross beam, a sliding clamping seat is installed on the upper side of a sliding block through a sliding rail and can move to a position right below the downward extending support columns, and a horizontal oil cylinder for driving the sliding clamping seat is installed between the sliding clamping seat and a support member fixed on the upper side of the sliding block.
CN201922008143.8U 2019-11-20 2019-11-20 Lower-pressure hydraulic press for internal high-pressure bulging process Active CN211707847U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922008143.8U CN211707847U (en) 2019-11-20 2019-11-20 Lower-pressure hydraulic press for internal high-pressure bulging process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922008143.8U CN211707847U (en) 2019-11-20 2019-11-20 Lower-pressure hydraulic press for internal high-pressure bulging process

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Publication Number Publication Date
CN211707847U true CN211707847U (en) 2020-10-20

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112916710A (en) * 2021-01-23 2021-06-08 广东思豪内高压科技有限公司 Internal high-pressure forming control system for stainless steel pipe fitting
CN113183506A (en) * 2021-05-21 2021-07-30 河南福源达咨询管理有限公司 Novel hydraulic press with dust removal removes flavor function
CN113183507A (en) * 2021-05-21 2021-07-30 河南福源达咨询管理有限公司 Underneath type novel hydraulic machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112916710A (en) * 2021-01-23 2021-06-08 广东思豪内高压科技有限公司 Internal high-pressure forming control system for stainless steel pipe fitting
CN113183506A (en) * 2021-05-21 2021-07-30 河南福源达咨询管理有限公司 Novel hydraulic press with dust removal removes flavor function
CN113183507A (en) * 2021-05-21 2021-07-30 河南福源达咨询管理有限公司 Underneath type novel hydraulic machine
CN113183507B (en) * 2021-05-21 2023-03-10 河南泰田重工机械制造有限公司 Underneath type hydraulic press
CN113183506B (en) * 2021-05-21 2023-04-07 河南泰田重工机械制造有限公司 Hydraulic press with dust removal removes flavor function

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