CN101195141A - Post rod hydraulic pressure balancing device of exterior cladding element draw forming die of vehicle - Google Patents
Post rod hydraulic pressure balancing device of exterior cladding element draw forming die of vehicle Download PDFInfo
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- CN101195141A CN101195141A CNA2007100932576A CN200710093257A CN101195141A CN 101195141 A CN101195141 A CN 101195141A CN A2007100932576 A CNA2007100932576 A CN A2007100932576A CN 200710093257 A CN200710093257 A CN 200710093257A CN 101195141 A CN101195141 A CN 101195141A
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- forming die
- draw forming
- hydraulic
- balancing device
- pistons
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Abstract
The invention relates to a hydraulic balancing device of ejector pins, which is used to draw auto body drawing parts into type modulus. The invention comprises at least four hydraulic devices which are communicated mutually through oil pipes. The hydraulic devices are composed of bases, cylinder bodies, pistons, sealing rings and connecting rods whose lower portions are connected with the upper faces of the pistons, and upper portions are extended outside the cylinder bodies. The invention is characterized in that hydraulic oil is filled in the cylinder bodies which are under the pistons, and four connectors of the oil pipes are arranged on the inner walls of the cylinder bodies which are under the pistons. The effects of the invention are that problems that die flanging can't be stressed unevenly and field adjustments have great difficulties can be solved, simultaneously, time for die adjustments and die exchanges can be saved, rework rate and reject rate can be lowered effectively, and stability and working efficiency can be increased. Additionally, the invention can not only guarantee effectively the accuracy of presses, but also protect the dies and the presses.
Description
Technical field
The present invention relates to the draw forming die annex, be specifically related to the post rod hydraulic pressure balancing device of exterior cladding element draw forming die of vehicle.
Background technology
The production of the large-scale outer covering piece of automobile generally needs the 3-5 procedure, and among these operations, first procedure is the drawing and moulding operation, and the drawing and moulding operation plays the effect of wanting to the pass to the product surface state.The reason that influences the formed product poor effect is more, one of them chief reason is a mould unbalance stress in the course of the work, causes material to flow and fluctuation occurs, has therefore influenced molding effect to a great extent, the relatively poor product needed of molding effect is reprocessed, even scraps.This has not only brought huge cost loss, also becomes the bottleneck that the restriction product quality improves.Simultaneously, owing to be subjected to the restriction of aspects such as press equipment precision, cause the debugging difficulty of draw forming die greatly especially, this type of problem also becomes the bigger difficult problem of technical staff's resistance.
Summary of the invention
The post rod hydraulic pressure balancing device that the purpose of this invention is to provide a kind of exterior cladding element draw forming die of vehicle, it can improve the stressed unbalanced situation of draw forming die, reduces the field adjustable difficulty, improves the formed product quality.
The post rod hydraulic pressure balancing device of exterior cladding element draw forming die of vehicle of the present invention comprises at least 4 hydraulic means that are communicated with by oil pipe; Described hydraulic means by pedestal, be located by connecting on cylinder body on the pedestal, the piston that cooperates with inboard wall of cylinder block, be located at sealing ring, the lower end below the piston and be connected above the piston, connecting rod that cylinder body is stretched out in the upper end forms, it is characterized in that: in the cylinder body below piston hydraulic oil is housed, the sidewall of the cylinder body below piston is provided with 4 oil connections, can cooperate with oil pipe during connection, can seal when not needing to connect.
The post rod hydraulic pressure balancing device of described exterior cladding element draw forming die of vehicle, the pedestal of each hydraulic means is connected with the supporting plate of draw forming die by screw, and the upper end of the connecting rod of each hydraulic means contacts with the push rod of draw forming die.
Effect of the present invention is: solved mould flanging unbalance stress, problem that the field adjustable difficulty is big, simultaneously, saved die debugging and mould replacing time, effectively reduced that part is reprocessed and scrappage, improved production stability and operating efficiency.In addition, the forcing press precision is effectively guaranteed, and mould and forcing press also are protected.
Description of drawings
Fig. 1 is a schematic diagram of forming hydraulic device structure of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is a schematic diagram of the present invention.
Fig. 4 is the structural representation of existing exterior cladding element draw forming die of vehicle.
Fig. 5 is the schematic diagram that the present invention cooperates with exterior cladding element draw forming die of vehicle.
The specific embodiment
Referring to Fig. 1 and Fig. 2, described hydraulic means 8 by pedestal 16, be located by connecting on cylinder body 17 on the pedestal, the piston 11 that cooperates with inboard wall of cylinder block, be located at sealing ring 12, the lower end below the piston and be connected above the piston, connecting rod 10 that cylinder body is stretched out in the upper end forms, hydraulic oil 13 is housed in the cylinder body below piston, and the sidewall of the cylinder body below piston is provided with 4 oil connections 14.
Referring to Fig. 3, the post rod hydraulic pressure balancing device of exterior cladding element draw forming die of vehicle of the present invention comprises 6 hydraulic means 8 that are communicated with by oil pipe 9.
Referring to Fig. 4, exterior cladding element draw forming die of vehicle is made up of patrix 1, blank holder 2 and counterdie 3, and the lifting of air cushion 5 drives the lifting of supporting plate 6 and push rod 7, then is passed to blank holder 2 after push rod 7 is stressed.Material flows in shaping mould under pressure.If there are aspect reasons such as deviation, push rod height be inconsistent in the machine tool precision, then can cause part push rod upper end to fail to touch with the blank holder bottom connection, cause the blank holder discontinuity equalization.Have a strong impact on the Forming Quality of product.
Referring to Fig. 5, solve the problem of blank holder stress equalization, best scheme is that bascule is arranged at every bar position above supporting plate.The pedestal 16 of each hydraulic means 8 of the post rod hydraulic pressure balancing device of exterior cladding element draw forming die of vehicle is connected with the supporting plate 6 of draw forming die by screw 15, and 6 hydraulic means 8 that are communicated with oil pipe 9, the upper end of the connecting rod 10 of each hydraulic means contacts with the push rod 7 of draw forming die.Under the forcing press effect, power is passed to piston 11, in order to prevent overflowing of hydraulic oil 13.Because the hydraulic oil below the piston of each hydraulic means communicates, and makes push rod regulate its adjustable height automatically with stressed size, under the effect of hydraulic balance device, can make that blank holder is stressed to reach balanced.
Claims (2)
1. the post rod hydraulic pressure balancing device of exterior cladding element draw forming die of vehicle comprises at least 4 hydraulic means (8) that are communicated with by oil pipe (9); Described hydraulic means by pedestal (16), be located by connecting on cylinder body (17) on the pedestal, the piston (11) that cooperates with inboard wall of cylinder block, the sealing ring (12), the lower end that are located at below the piston form with the connecting rod that is connected above the piston, cylinder body is stretched out in the upper end (10), it is characterized in that: hydraulic oil (13) is housed in the cylinder body below piston, and the sidewall of the cylinder body below piston is provided with 4 oil connections (14).
2. the post rod hydraulic pressure balancing device of exterior cladding element draw forming die of vehicle according to claim 1, it is characterized in that: the pedestal (16) of each hydraulic means (8) is connected with the supporting plate (6) of draw forming die by screw (15), and the upper end of the connecting rod (10) of each hydraulic means (8) contacts with the push rod (7) of draw forming die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100932576A CN101195141A (en) | 2007-12-30 | 2007-12-30 | Post rod hydraulic pressure balancing device of exterior cladding element draw forming die of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100932576A CN101195141A (en) | 2007-12-30 | 2007-12-30 | Post rod hydraulic pressure balancing device of exterior cladding element draw forming die of vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101195141A true CN101195141A (en) | 2008-06-11 |
Family
ID=39545875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100932576A Pending CN101195141A (en) | 2007-12-30 | 2007-12-30 | Post rod hydraulic pressure balancing device of exterior cladding element draw forming die of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101195141A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110773645A (en) * | 2019-11-12 | 2020-02-11 | 刁建兵 | Parallel alignment assembly method for balance block of automobile drawing die |
| WO2020125193A1 (en) * | 2018-12-17 | 2020-06-25 | 珠海格力电器股份有限公司 | Centrifugal compressor and diffuser device |
-
2007
- 2007-12-30 CN CNA2007100932576A patent/CN101195141A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125193A1 (en) * | 2018-12-17 | 2020-06-25 | 珠海格力电器股份有限公司 | Centrifugal compressor and diffuser device |
| US11578733B2 (en) | 2018-12-17 | 2023-02-14 | Gree Electric Appliances, Inc. Of Zhuhai | Centrifugal compressor and diffuser |
| CN110773645A (en) * | 2019-11-12 | 2020-02-11 | 刁建兵 | Parallel alignment assembly method for balance block of automobile drawing die |
| CN110773645B (en) * | 2019-11-12 | 2021-10-12 | 刁建兵 | Parallel alignment assembly method for balance block of automobile drawing die |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080611 |