CN116811328B - Hydraulic pressure adjusting press - Google Patents
Hydraulic pressure adjusting press Download PDFInfo
- Publication number
- CN116811328B CN116811328B CN202310818705.3A CN202310818705A CN116811328B CN 116811328 B CN116811328 B CN 116811328B CN 202310818705 A CN202310818705 A CN 202310818705A CN 116811328 B CN116811328 B CN 116811328B
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- China
- Prior art keywords
- guide post
- press
- dead point
- reversing valve
- stamping
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 239000000523 sample Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims description 2
- 238000010924 continuous production Methods 0.000 abstract description 3
- 230000033228 biological regulation Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of Presses (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention discloses a hydraulic pressure adjusting press which comprises a stamping slide block, a crankshaft, a connecting rod and an adjusting screw, wherein the adjusting screw is connected with a hydraulic cylinder, and the bottom end of the hydraulic cylinder is connected with the stamping slide block; the hydraulic pressure regulation press is also provided with a lower dead point detector, an oil tank and an oil pump, and the oil pump is connected with the hydraulic cylinder. When in actual use, the bottom dead center position of the press can be monitored, and the position of the bottom dead center is regulated to be within a preset range in a hydraulic mode, so that the continuous production of the press is ensured, and the stamping precision of the press is ensured.
Description
Technical Field
The invention relates to the technical field of presses, in particular to a hydraulic-adjusting press.
Background
The bottom dead center inevitably changes in the production process of the high-speed press due to heat generation (including environmental temperature change), inconsistent material thickness and mechanical properties, adjustment of stamping speed and the like. The change of the bottom dead center necessarily causes the reduction of the machining precision of the press machine, and the occasion with higher requirement of the machining precision is difficult to meet. In view of the above technical problems, the invention provides a new technical scheme which can monitor the bottom dead center of the press, and adjust the bottom dead center by a hydraulic mode, so that the bottom dead center position of the sliding block is compensated, and the stamping precision of the press is ensured.
It can be seen that there is a need for improvements and improvements in the art.
Disclosure of Invention
In view of the shortcomings of the prior art, the invention aims to provide a hydraulic pressure adjusting press, which aims to solve the technical problem that the change of bottom dead center in the working process of the press cannot be compensated in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a hydraulic pressure adjusting press comprises a stamping slide block, a crankshaft, a connecting rod and an adjusting screw rod, wherein the adjusting screw rod is connected with a hydraulic cylinder, and the bottom end of the hydraulic cylinder is connected with the stamping slide block; the hydraulic pressure regulation press is also provided with a lower dead point detector, an oil tank and an oil pump, and the oil pump is connected with the hydraulic cylinder.
Further, in the hydraulic pressure adjusting press, the hydraulic cylinder comprises a guide post and a cylinder body, and the bottom end of the cylinder body is connected with the stamping sliding block; the upper section of the guide post is connected with the adjusting screw rod, the lower section of the guide post stretches into the cylinder body, and the bottom end of the guide post is connected with the first piston.
Further, in the hydraulic pressure adjusting press, an inner cavity is formed in the lower section of the guide column, the guide column is connected with a second guide column, a second piston is arranged on the second guide column, and the second guide column penetrates through the first piston and is connected with the stamping sliding block.
Further, in the hydraulic pressure adjusting press, an outlet pipeline of the oil pump is connected with a first branch pipe and a second branch pipe; the first branch pipe is connected with a first reversing valve, and the first reversing valve is communicated with the cylinder body through a pipeline; the second branch pipe is connected with a second reversing valve, and the second reversing valve is communicated with the inner cavity of the guide post through a pipeline.
Further, in the hydraulic pressure adjusting press, the first reversing valve and the second reversing valve are three-position five-way electromagnetic valves.
Further, in the hydraulically adjusted press, the lower dead point detector is an eddy current sensor.
Further, in the hydraulic pressure adjusting press, the hydraulic pressure adjusting press further comprises a controller, and the lower dead point detector, the oil pump, the first reversing valve and the second reversing valve are respectively connected with the controller.
The beneficial effects are that: the invention provides a hydraulic pressure regulating press, which can monitor the bottom dead center position of the press and hydraulically regulate the bottom dead center position to be within a preset range compared with the prior art. The whole process is automatically monitored and regulated, closed-loop control is realized, shutdown adjustment is not needed, continuous production is ensured, and stamping precision of the press is ensured.
Drawings
Fig. 1 is a schematic structural view of a hydraulic pressure adjusting press provided by the invention.
Fig. 2 is a partial enlarged view of the region S in fig. 1.
Fig. 3 is a schematic diagram of the hydraulic control of a hydraulically regulated press provided by the present invention.
Detailed Description
The invention provides a hydraulic pressure adjusting press machine, which is further described in detail below for the purpose, technical scheme and effect of the invention to be clearer and clearer. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 3, the present invention provides a hydraulic pressure adjusting press. The drawings are only for the purpose of illustrating the structural principles and are not to scale with respect to actual products. The figures only show the structures related to the inventive point of the present application, and for some conventional structures of presses, the figures are not specifically drawn.
The hydraulic pressure adjusting press comprises a stamping slide block 14, a crankshaft 11, a connecting rod 12 and an adjusting screw 13, wherein the adjusting screw is connected with a hydraulic cylinder, and the bottom end of the hydraulic cylinder is connected with the stamping slide block; the hydraulically regulated press is further provided with a lower dead point detector, an oil tank 90 and an oil pump 91, which is connected to the hydraulic cylinder. The lower dead point detector, the tank and the oil pump are not shown.
Specifically, the hydraulic cylinder comprises a guide post 3 and a cylinder body 4, and the bottom end of the cylinder body is connected with the stamping sliding block; the upper section of the guide pillar is connected with the adjusting screw rod, the lower section of the guide pillar stretches into the cylinder body, and the bottom end of the guide pillar is connected with a first piston 5. The first piston is slidably coupled to the cylinder inner wall. When the oil pump is started to adjust the hydraulic cylinder, the cylinder body moves in the vertical direction relative to the guide post in practice, so that the bottom dead center position of the stamping sliding block connected with the cylinder body is compensated. It should be noted that when adjusting the hydraulic cylinder, the piston does not move vertically due to the relativity of the movement, but the cylinder body moves vertically.
As can be seen from fig. 1, the top of the adjusting screw is provided with a ball bowl 22, the bottom end of the connecting rod is connected with a ball head 21, the ball head is arranged in the ball bowl, and the top of the ball bowl is provided with a cover plate 23. Through setting up bulb and ball bowl, realized rotatable connection between connecting rod and the adjusting screw.
The guide post is in threaded connection with the adjusting screw. The adjusting screw is provided with external threads, and the guide post is correspondingly provided with internal threads. In practical application, the press is also provided with a die adjusting motor, an output shaft of the die adjusting motor is connected with a worm, the worm is connected with a worm wheel, and the worm wheel is connected with an adjusting screw; the die adjusting motor rotates to drive the adjusting screw to rotate, so that the guide post is driven to move in the vertical direction. Because the structures of the die adjusting motor, the worm gear and the like in the press are the prior art, only a brief description is provided here, and the drawings are not specifically drawn.
Further, the lower section of the guide post is provided with an inner cavity (i.e. the cavity in which the second piston is located), the guide post is connected with a second guide post 6, the second guide post is provided with a second piston 7, and the second guide post passes through the first piston and is connected with the stamping slide block. The second piston is slidably connected with the inner wall of the guide post inner cavity. The guide post, the second guide post and the second piston also play a role of a hydraulic cylinder through the arrangement, and the arrangement can be used for hydraulic die adjustment of each debugging of the press. During hydraulic die adjustment, the guide post is motionless, and the second guide post, the second piston and the hydraulic cylinder integrally move in the vertical direction due to the relativity of movement.
In order to realize oil feeding and discharging, an oil feeding hole 600 may be formed in the second guide post, one end of the oil feeding hole extends to the outside, and one end of the oil feeding hole is communicated with the inner cavity of the guide post. The inner cavity of the guide post is provided with an oil drain hole and extends to the outside. Since the positions of the oil inlet hole and the oil discharge hole may be varied, no particular limitation is made herein. Similarly, the cylinder body of the hydraulic cylinder is actually provided with an oil inlet hole 400 and an oil discharge hole for connecting with the hydraulic system, and is not particularly limited herein.
Further, as shown in soil 3, the outlet pipe of the oil pump 91 is connected with a first branch pipe 911 and a second branch pipe 912; the first branch pipe is connected with a first reversing valve 921, and the first reversing valve is communicated with the cylinder body through a pipeline; the second branch pipe is connected with a second reversing valve 922, and the second reversing valve is communicated with the inner cavity of the guide post through a pipeline.
Preferably, the first reversing valve and the second reversing valve are all three-position five-way electromagnetic valves.
Preferably, the lower dead point detector is an eddy current sensor. In actual use, the probe of the lower dead point detector can be vertically upwards arranged on the workbench (and does not interfere with the lower die of the press), and a blocking steel sheet (not shown in the figure) is fixedly connected to the stamping slide block and is arranged opposite to the probe of the detector.
Further, the hydraulic pressure adjusting press further comprises a controller, and the lower dead point detector, the oil pump, the first reversing valve and the second reversing valve are respectively connected with the controller.
In the actual operation process, the lower dead point detector is used for detecting the position of the stamping sliding block at the bottom dead point and feeding back the position to the controller, and the controller compares the monitored position of the bottom dead point with a preset position range of the bottom dead point, and when the monitored position exceeds the preset range, the controller indicates that the stamping sliding block needs to be subjected to position compensation. The controller controls the oil pump to start, and controls the hydraulic cylinder to make corresponding actions by controlling the action of the first reversing valve, so that the stamping sliding block is subjected to position adjustment in the vertical direction until the position of the bottom dead center is actually monitored to be in a preset range. The whole process is automatically monitored and regulated, closed-loop control is realized, shutdown adjustment is not needed, continuous production is ensured, and stamping precision of the press is ensured.
It will be understood that equivalents and modifications will occur to those skilled in the art based on the present invention and its spirit, and all such modifications and substitutions are intended to be included within the scope of the present invention.
Claims (3)
1. The hydraulic pressure adjusting press comprises a stamping slide block, a crankshaft, a connecting rod and an adjusting screw rod, and is characterized in that the adjusting screw rod is connected with a hydraulic cylinder, and the bottom end of the hydraulic cylinder is connected with the stamping slide block; the hydraulic pressure adjusting press is also provided with a lower dead point detector, an oil tank and an oil pump, and the oil pump is connected with the hydraulic cylinder; the hydraulic cylinder comprises a guide post and a cylinder body, and the bottom end of the cylinder body is connected with the stamping sliding block; the upper section of the guide post is connected with the adjusting screw rod, the lower section of the guide post stretches into the cylinder body, and the bottom end of the guide post is connected with a first piston; the lower section of the guide post is provided with an inner cavity, the guide post is connected with a second guide post, a second piston is arranged on the second guide post, and the second guide post penetrates through the first piston and is connected with the stamping sliding block; the outlet pipeline of the oil pump is connected with a first branch pipe and a second branch pipe; the first branch pipe is connected with a first reversing valve, and the first reversing valve is communicated with the cylinder body through a pipeline; the second branch pipe is connected with a second reversing valve, and the second reversing valve is communicated with the inner cavity of the guide post through a pipeline; the hydraulically adjusted press further comprises a controller; the lower dead point detector is an eddy current sensor, a probe of the lower dead point detector is vertically upwards arranged on the workbench, a blocking steel sheet is fixedly connected to the stamping sliding block, and the blocking steel sheet is oppositely arranged with the probe of the detector; the lower dead point detector is used for detecting the position of the stamping slide block at the bottom dead point and feeding back the position to the controller, the controller compares the monitored position of the bottom dead point with a preset position range of the bottom dead point, if the monitored position of the bottom dead point exceeds the preset range, the controller indicates that the stamping slide block needs to be subjected to position compensation, the controller controls the oil pump to start, and the hydraulic cylinder is controlled to correspondingly act through controlling the action of the first reversing valve, so that the stamping slide block is subjected to position adjustment in the vertical direction until the position of the bottom dead point is actually monitored within the preset range.
2. The hydraulically regulated press of claim 1, wherein the first reversing valve and the second reversing valve are each three-position five-way solenoid valves.
3. The hydraulically adjusted press of claim 1, wherein the lower dead point detector, the oil pump, the first reversing valve, and the second reversing valve are each connected to a controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310818705.3A CN116811328B (en) | 2023-07-05 | 2023-07-05 | Hydraulic pressure adjusting press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310818705.3A CN116811328B (en) | 2023-07-05 | 2023-07-05 | Hydraulic pressure adjusting press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116811328A CN116811328A (en) | 2023-09-29 |
| CN116811328B true CN116811328B (en) | 2024-01-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310818705.3A Active CN116811328B (en) | 2023-07-05 | 2023-07-05 | Hydraulic pressure adjusting press |
Country Status (1)
| Country | Link |
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| CN (1) | CN116811328B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4873912A (en) * | 1982-06-09 | 1989-10-17 | Hartmann & Lammle Gmbh & Co. Kg | Hydraulic driving arrangement |
| CN201052671Y (en) * | 2006-12-28 | 2008-04-30 | 重庆工学院 | Die carrier for realizing exact punching on common pressing machine |
| CN201257763Y (en) * | 2008-09-19 | 2009-06-17 | 江苏扬力集团有限公司 | Pressing machine with hydraulic control system |
| WO2010046087A1 (en) * | 2008-10-21 | 2010-04-29 | Voith Patent Gmbh | Hydraulic press drive and a method for operating a hydraulic press drive |
| CN202208122U (en) * | 2011-07-22 | 2012-05-02 | 广东锻压机床厂有限公司 | Thread adjusting locking mechanism of slider of press |
| CN104669657A (en) * | 2015-02-03 | 2015-06-03 | 宁波郎泰机械有限公司 | Press machine |
| CN104669673A (en) * | 2015-02-03 | 2015-06-03 | 宁波郎泰机械有限公司 | Slider component for press machine |
| CN105856606A (en) * | 2016-06-20 | 2016-08-17 | 扬州市工兵机械有限公司 | Down regulation type high-precision rapid hydraulic press machine as well as mold adjusting oil cylinder and mold adjusting method thereof |
| CN206966395U (en) * | 2017-08-03 | 2018-02-06 | 重庆首瀚智能技术研究院有限公司 | The protection device of punching machine mold |
-
2023
- 2023-07-05 CN CN202310818705.3A patent/CN116811328B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4873912A (en) * | 1982-06-09 | 1989-10-17 | Hartmann & Lammle Gmbh & Co. Kg | Hydraulic driving arrangement |
| CN201052671Y (en) * | 2006-12-28 | 2008-04-30 | 重庆工学院 | Die carrier for realizing exact punching on common pressing machine |
| CN201257763Y (en) * | 2008-09-19 | 2009-06-17 | 江苏扬力集团有限公司 | Pressing machine with hydraulic control system |
| WO2010046087A1 (en) * | 2008-10-21 | 2010-04-29 | Voith Patent Gmbh | Hydraulic press drive and a method for operating a hydraulic press drive |
| CN202208122U (en) * | 2011-07-22 | 2012-05-02 | 广东锻压机床厂有限公司 | Thread adjusting locking mechanism of slider of press |
| CN104669657A (en) * | 2015-02-03 | 2015-06-03 | 宁波郎泰机械有限公司 | Press machine |
| CN104669673A (en) * | 2015-02-03 | 2015-06-03 | 宁波郎泰机械有限公司 | Slider component for press machine |
| CN105856606A (en) * | 2016-06-20 | 2016-08-17 | 扬州市工兵机械有限公司 | Down regulation type high-precision rapid hydraulic press machine as well as mold adjusting oil cylinder and mold adjusting method thereof |
| CN206966395U (en) * | 2017-08-03 | 2018-02-06 | 重庆首瀚智能技术研究院有限公司 | The protection device of punching machine mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116811328A (en) | 2023-09-29 |
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