CN201998455U - Precise adjustment device for bottom dead center of press machine - Google Patents
Precise adjustment device for bottom dead center of press machine Download PDFInfo
- Publication number
- CN201998455U CN201998455U CN2011200600106U CN201120060010U CN201998455U CN 201998455 U CN201998455 U CN 201998455U CN 2011200600106 U CN2011200600106 U CN 2011200600106U CN 201120060010 U CN201120060010 U CN 201120060010U CN 201998455 U CN201998455 U CN 201998455U
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- Prior art keywords
- eccentric shaft
- bottom dead
- forcing press
- adjusting device
- dead centre
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Abstract
The utility model discloses a precise adjustment device for a bottom dead center of a press machine, which comprises an eccentric shaft and a servo motor. The servo motor is connected with the eccentric shaft in transmission mode, the eccentric shaft is connected with a slide block and a connecting rod of the press machine in hinge mode, and a worm and worm gear retarding mechanism is arranged between the eccentric shaft and the servo motor. The precise adjustment device conducts a precise pre-adjustment and automatic precise compensation on the position of the bottom dead center of the slide block, thereby improving product manufacture quality and reducing rejection rate.
Description
Technical field
The utility model is the pinpoint accuracy requirement at crank-connecting rod-slide block or many link-types-slide block pressure machine slide block lower dead point position, can realize the device of accurate pre-adjustment or automatic fine compensation specification requirement, belongs to high-speed, high precision punch forming technical field.
Background technology
Add man-hour in high speed, high accuracy punch forming, require the lower dead point position of press ram (upper trimming die) to have pinpoint accuracy.Yet, in process, owing to the reasons such as variations in temperature in forcing press, mould, process system and other accessory system course of work, the position of press ram (upper trimming die) bottom dead centre can change thereupon, cause the decline of punch forming crudy thus, this phenomenon will cause the crudy unstability of punch forming process, at a high speed, high-precision punching press is particularly serious.For addressing the above problem, how before punching press is started working or in the process, the lower dead point position precision of slide block is carried out strictness control, become problem demanding prompt solution.
Summary of the invention
The utility model is to provide a kind of precise adjusting device that improves crudy and reduce the forcing press bottom dead centre of percent defective at the defective that the above-mentioned background technology exists.
For achieving the above object, the utility model discloses a kind of precise adjusting device of forcing press bottom dead centre, it comprises eccentric shaft and the servomotor that is in transmission connection with described eccentric shaft, the connecting rod of described eccentric shaft and press ram and forcing press is hinged, and is provided with the worm and wormwheel reducing gear between described eccentric shaft and the described servomotor.
Further, described servomotor has the accurate detection and the recognition device of angle position.
Further, the accurately adjustment amount K=RSin θ of described press ram lower dead point position, in the aforementioned calculation formula, the character code definition:
R: the offset of eccentric shaft, θ: the corner of eccentric shaft.
Further, the offset of described eccentric shaft is less than 2mm.
Further, the connecting rod neck of described eccentric shaft links to each other by bearing with the connecting rod of forcing press.
Further, described bearing is sliding bearing or rolling bearing.
In sum, the precise adjusting device of the utility model forcing press bottom dead centre and method adopt the accurate pre-adjustment of lower dead point position of slide block (upper trimming die) and carry out automatic fine compensation by it, thereby improve product processing quality, reduce percent defective.
Description of drawings
Fig. 1 is the schematic diagram of a kind of embodiment of the utility model.
Fig. 2 is a structural representation of the present utility model.
Schematic diagram when Fig. 3 does not compensate for the utility model.
Schematic diagram when Fig. 4 compensates for the utility model.
The specific embodiment
For further understanding feature of the present utility model, technological means and the specific purposes that reached, function, the utility model is described in further detail below in conjunction with the accompanying drawing and the specific embodiment.
See also Fig. 1 to Fig. 4, the precise adjusting device of the utility model forcing press bottom dead centre comprises eccentric shaft 1, worm and wormwheel reducing gear 2 and the servomotor 3 that is in transmission connection with described eccentric shaft 1.Described eccentric shaft 1 is micro-eccentric shaft, and its offset is less than 2mm, and described eccentric shaft 1 is hinged with the connecting rod 5 of press ram 4 and forcing press, and connecting rod 5 necks of promptly described eccentric shaft 1 can link to each other by sliding bearing or rolling bearing with the connecting rod 5 of forcing press.In the present embodiment, described bearing is a rolling bearing.Be provided with described worm and wormwheel reducing gear 2 between described eccentric shaft 1 and the described servomotor 3.Described servomotor 3 has the accurate detection and the recognition device of angle position.
The accurate method of adjustment of described forcing press bottom dead centre is: before processing or in process, described eccentric shaft 1 drives its revolution by servomotor 3 through worm and wormwheel reducing gear 2, the connecting rod 5 of forcing press is driven by the crank 6 of forcing press, and then drive press ram 4 pumps, when eccentric shaft 1 is in different corner, can obtain the exact position of slide block bottom dead centre.
Then, servomotor 3 reduces servomotor 3 driving torques by worm and wormwheel reducing gear 2 and eccentric shaft 1 angle position is accurately controlled and locked.The accurately adjustment amount of described slide block lower dead point position (containing accurate preset amount and automatic compensation rate) is K, because L〉〉 R, formula can be reduced to: K=RSin θ, in the aforementioned calculation formula, the character code definition:
R: the offset of eccentric shaft 1, L: the length of press connecting rod 5, θ: the corner of eccentric shaft 1.As shown from the above formula, its compensation range is 0-± R.
In sum, the precise adjusting device of the utility model forcing press bottom dead centre and method by adopting slide block (upper trimming die) the accurate pre-adjustment of lower dead point position and carry out automatic fine compensation, thereby improve product processing quality, the minimizing percent defective, method of adjustment is simple.
The above embodiment has only expressed a kind of embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model scope.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with claims.
Claims (6)
1. the precise adjusting device of a forcing press bottom dead centre, it is characterized in that: comprise eccentric shaft (1) and the servomotor (3) that is in transmission connection with described eccentric shaft (1), described eccentric shaft (1) is hinged with press ram (4) and connecting rod (5), is provided with worm and wormwheel reducing gear (2) between described eccentric shaft (1) and the described servomotor (3).
2. the precise adjusting device of forcing press bottom dead centre according to claim 1 is characterized in that: described servomotor (3) has the accurate detection and the recognition device of angle position.
3. the precise adjusting device of forcing press bottom dead centre according to claim 1 and 2 is characterized in that: the accurately adjustment amount K=RSin θ of described press ram (4) lower dead point position.
4. the precise adjusting device of forcing press bottom dead centre according to claim 1 and 2 is characterized in that: the offset of described eccentric shaft (1) is less than 2mm.
5. the precise adjusting device of forcing press bottom dead centre according to claim 1 and 2 is characterized in that: the connecting rod neck of described eccentric shaft (1) links to each other by bearing with connecting rod (5).
6. the precise adjusting device of forcing press bottom dead centre according to claim 5 is characterized in that: described bearing is sliding bearing or rolling bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200600106U CN201998455U (en) | 2011-03-09 | 2011-03-09 | Precise adjustment device for bottom dead center of press machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200600106U CN201998455U (en) | 2011-03-09 | 2011-03-09 | Precise adjustment device for bottom dead center of press machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201998455U true CN201998455U (en) | 2011-10-05 |
Family
ID=44701226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200600106U Expired - Fee Related CN201998455U (en) | 2011-03-09 | 2011-03-09 | Precise adjustment device for bottom dead center of press machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201998455U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179953A (en) * | 2011-03-09 | 2011-09-14 | 东莞华中科技大学制造工程研究院 | Device and method for accurately adjusting bottom dead centre of press |
| CN102602029A (en) * | 2012-03-14 | 2012-07-25 | 江苏省徐州锻压机床厂集团有限公司 | Dynamic compensation mechanism for bottom dead center of high-speed precise press |
| CN108177366A (en) * | 2018-02-07 | 2018-06-19 | 扬力集团股份有限公司 | A kind of sliding-block bottom-dead-center position compensating device |
-
2011
- 2011-03-09 CN CN2011200600106U patent/CN201998455U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179953A (en) * | 2011-03-09 | 2011-09-14 | 东莞华中科技大学制造工程研究院 | Device and method for accurately adjusting bottom dead centre of press |
| CN102602029A (en) * | 2012-03-14 | 2012-07-25 | 江苏省徐州锻压机床厂集团有限公司 | Dynamic compensation mechanism for bottom dead center of high-speed precise press |
| CN108177366A (en) * | 2018-02-07 | 2018-06-19 | 扬力集团股份有限公司 | A kind of sliding-block bottom-dead-center position compensating device |
| CN108177366B (en) * | 2018-02-07 | 2023-10-03 | 扬力集团股份有限公司 | Compensation device for bottom dead center position of sliding block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUAZHONG UNIVERSITY OF SCIENCE + TECHNOLOGY JIANGS Free format text: FORMER OWNER: HUAZHONG UNIVERSITY OF SCIENCE + TECHNOLOGY Effective date: 20121029 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shao Xinyu Inventor after: Huang Yu Inventor after: Duan Zhengcheng Inventor after: Deng Jianchun Inventor after: Zhu Guoli Inventor after: Gong Shihua Inventor after: Ke Zunmang Inventor after: Lu Xinjian Inventor before: Shao Xinyu Inventor before: Huang Yu Inventor before: Duan Zhengcheng Inventor before: Deng Jianchun Inventor before: Zhu Guoli Inventor before: Gong Shihua |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: SHAO XINYU HUANG YU DUAN ZHENGCHENG DENG JIANCHUN ZHU GUOLI GONG SHIHUA TO: SHAO XINYU HUANG YU DUAN ZHENGCHENG DENG JIANCHUN ZHU GUOLI GONG SHIHUA KE ZUNMANG LU XINJIAN |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121029 Address after: 523770, science and Technology Industrial Park, Songshan Lake Science and technology, Guangdong, Dongguan Province, No. nine, No. 1 Patentee after: DG-HUST Manufacturing Engineering Institute Patentee after: Huazhong University of Science and Technology Patentee after: Jiangsu Xuzhou Forging Machine Tool Plant Group Co., Ltd. Address before: 523770, science and Technology Industrial Park, Songshan Lake Science and technology, Guangdong, Dongguan Province, No. nine, No. 1 Patentee before: DG-HUST Manufacturing Engineering Institute Patentee before: Huazhong University of Science and Technology |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20160309 |