CN110639983A - Stroke adjusting device for upper die and lower die of bending machine - Google Patents
Stroke adjusting device for upper die and lower die of bending machine Download PDFInfo
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- CN110639983A CN110639983A CN201910906919.XA CN201910906919A CN110639983A CN 110639983 A CN110639983 A CN 110639983A CN 201910906919 A CN201910906919 A CN 201910906919A CN 110639983 A CN110639983 A CN 110639983A
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- hydraulic
- hydraulic stem
- die
- lower die
- rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
- B21D5/0209—Tools therefor
- B21D5/0227—Length adjustment of the die
Abstract
The invention relates to the technical field of intelligent manufacturing, and discloses a stroke adjusting device for an upper die and a lower die of a bending machine, which comprises the lower die and hydraulic rods I fixedly arranged on the left side and the right side of the top end of the lower die, wherein one side of one of the hydraulic rods I is provided with a hydraulic rod II, the bottom end of the hydraulic rod I is provided with a hydraulic pipe and a power pipe, the other end of the hydraulic pipe is communicated with an inner cavity of the hydraulic rod II, and an oil valve is arranged on the hydraulic pipe and close to the hydraulic rod II. According to the invention, the hydraulic rod II is arranged on one side of the lower die and is communicated with the hydraulic oil path of the hydraulic rod I, so that the hydraulic rod I and the hydraulic rod II share one system of hydraulic oil, under the condition of ensuring that the total hydraulic oil amount is not changed, the hydraulic rod I control system extracts the residual hydraulic oil amount under the total amount, namely, the stroke of the upper die can be ensured to be just capable of reserving the plate thickness, no measurement operation is required, the precision control can be ensured, and the operation can be simplified.
Description
Technical Field
The invention relates to the technical field of intelligent manufacturing, in particular to a stroke adjusting device for an upper die and a lower die of a bending machine.
Background
The bending machine is a machine capable of bending a thin plate, and mainly comprises a left stand column, a right stand column, a workbench and a cross beam, wherein a left oil cylinder and a right oil cylinder are fixed on the stand columns, a sliding block is connected with a piston of the oil cylinders and moves up and down along a guide rail fixed on the stand columns, a lower die is fixed on the workbench, an upper die is installed at the lower end of the sliding block, a hydraulic system provides power, an electric system gives instructions, and the sliding block drives the upper die to be closed downwards and the lower die to realize the bending of the plate.
Before the bending machine starts to work, workers are required to perform initial amount positioning adjustment on the stroke of the upper die and the stroke of the lower die, namely the upper die moves downwards, the upper die and the lower die are just in contact with a plate, namely, a gap with the thickness of the plate must be ensured when the upper die moves downwards to the bottommost part, and then the upper die moves upwards to work. The 'just contact' is difficult to grasp due to manual adjustment, the precision of the stroke adjustment directly influences the bending effect and damages a die and a machine, and therefore the upper die stroke adjusting device and the lower die stroke adjusting device are provided and aim to solve the problems.
Disclosure of Invention
Aiming at the defects in the process of adjusting the initial state of the strokes of the upper die and the lower die of the existing bending machine in the background technology, the invention provides the stroke adjusting device for the upper die and the lower die of the bending machine, which has the advantages of high stroke setting precision and simple and convenient operation and solves the problems in the background technology.
The invention provides the following technical scheme: the utility model provides an go up mould and lower mould stroke adjusting device on bender, includes bed die, fixed mounting in the hydraulic stem I of the bed die top left and right sides and places the board work piece on bed die top, one of them hydraulic stem I is equipped with hydraulic stem II on one side, II fixed mounting in one side of bed die of hydraulic stem, the bottom of hydraulic stem I is equipped with hydraulic pressure pipe and power tube, the inner chamber of other end intercommunication hydraulic stem II of hydraulic pressure pipe, the hydraulic pressure station of the other end intercommunication hydraulic stem I of power tube, it is equipped with the fuel tap just to be close to II departments of hydraulic stem on the hydraulic pressure pipe, the fuel tap is used for controlling the oil circuit break-make of hydraulic pressure pipe, the top of hydraulic stem II is equipped with the block, one side fixedly connected with detection bar of block, but the bottom of detection bar contacts the top of board work piece.
Preferably, the cap and the hydraulic rod II are in threaded connection and do not need to be screwed.
Preferably, the detection rod is trapezoidal with a variable cross section, the bottom surface is a plane, and the top surface is an inclined plane.
Preferably, the hydraulic pipe is a metal alloy circular pipe.
The invention has the following beneficial effects:
1. according to the invention, the hydraulic rod II is arranged on one side of the lower die and is communicated with the hydraulic oil path of the hydraulic rod I, so that the hydraulic rod I and the hydraulic rod II share one system of hydraulic oil, the plate thickness is measured by the hydraulic rod II under the condition of ensuring that the total hydraulic oil amount is not changed, and the thickness is reflected on the change of the hydraulic oil storage amount of the hydraulic rod II, therefore, the plate thickness can be just reserved by the stroke of the upper die by extracting the residual hydraulic oil amount under the total amount by the control system of the hydraulic rod I, and no measurement operation is required, so that the precision control can be ensured, and the operation can be simplified.
2. According to the invention, the nut cap is in threaded connection with the top end of the hydraulic rod II, so that when the detection rod is pressed on the plate workpiece, the deformation amount caused by the bending resistance reaction force borne by the nut cap is nearly zero, so that the position precision represented by the thickness of the plate workpiece is improved, and meanwhile, the control effect of the bending resistance deformation amount can be further improved through the variable cross section arrangement of the detection rod.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
In the figure: 1. a lower die; 2. an upper die; 3. a slider; 4. a hydraulic rod I; 5. a plate workpiece; 6. a hydraulic rod II; 7. a hydraulic tube; 8. an oil valve; 9. a power tube; 10. capping; 11. a detection rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an upper die and lower die stroke adjusting device for a bending machine comprises a lower die 1, an upper die 2 arranged on the upper portion of the lower die 1, a slider 3 fixedly arranged on the back of the upper die 2, hydraulic rods i 4 fixedly arranged on the left side and the right side of the bottom end of the slider 3, and a plate workpiece 5 placed on the lower die 1, wherein one side of one hydraulic rod i 4 is provided with a hydraulic rod ii 6, the hydraulic rod ii 6 is fixedly arranged on one side of the lower die 1, a hydraulic pipe 7 is arranged between the hydraulic rod ii 6 and a hydraulic cavity of the hydraulic rod i 4, the hydraulic pipe 7 is used for communicating the hydraulic cavities of the hydraulic rods i 4 and ii 6, an oil valve 8 is arranged on the hydraulic pipe 7 and close to the hydraulic rod ii 6, the oil valve 8 is used for controlling the on-off of the oil circuit of the hydraulic rod ii 6, one side of the hydraulic rod i 4 is also provided with a power pipe 9, and the power pipe 9 is used for, a cap 10 is arranged at the top end of the hydraulic rod II 6, a detection rod 11 is arranged on one side of the cap 10, and the detection rod 11 is used for detecting the thickness of the plate workpiece 5.
Thus, the stroke adjustment process for the upper die and the lower die is as follows:
place board work piece 5 on the top of bed die 1, then lift up block 10, and the bottom of detecting rod 11 and the top contact of board work piece 5, then move detecting rod 11 with the hand downward pressure, close fuel tap 8 when can't continuing to press, rotate block 10, move detecting rod 11 on board work piece 5, then, start the hydraulic pressure station work of power pipe 9 intercommunication, surplus hydraulic oil under the total amount is predetermine in the extraction hydraulic stem I4, can accomplish the regulation of pushing down the stroke, continue to extract hydraulic oil in hydraulic stem I4 and can carry out the process of bending of upper and lower mould.
The above-mentioned "hydraulic oil remaining in the hydraulic rod i 4 in a predetermined total amount" is to be understood as follows: when the preset total amount is the total hydraulic amount required by the downward movement of the upper die 2 when no plate workpiece 5 is additionally arranged between the upper die 2 and the lower die 1, when the cap 10 is lifted up, the hydraulic amount obtained in the hydraulic rod II 6 is removed from the preset total amount, and the residual hydraulic oil amount is the hydraulic amount required by the downward movement of the upper die 2. And in addition to the preset total amount, the hydraulic rod I4 is also provided with a downward stroke hydraulic oil amount required by bending.
The hydraulic pipe 7 is made of a material which is not easy to deform, such as copper and stainless steel. After with the position of stabilizing hydraulic stem II 6, when hydraulic stem I4 bent the operation, caused hydraulic pressure pipe 7 to warp and take place the hydraulic pressure oil mass change because of the negative pressure to influence the accuracy control.
The cap 10 and the hydraulic rod II 6 are in threaded connection, and the thickness precision influence caused by bending, bearing and deformation of the cap 10 when the detection rod 11 is pressed is prevented by the aid of the characteristic of high bending deformation resistance of threaded connection. The threaded connection of the cap 10 does not need to be screwed, so that the cap 10 can drive the detection rod 11 to rotate away from the upper side of the plate workpiece 5, and in order to ensure the stability of the thread clearance of the cap 10 under the condition that the cap is not screwed, a group of springs can be arranged below the cap 10 to provide self-tightening of the threads.
Wherein, the measuring pole 11 adopts variable cross section trapezoidal, and the bottom surface is the plane, and the top surface is the inclined plane, adopts variable cross section trapezoidal setting, and the bending resistance of assurance measuring pole 11 that can be better bears to make board work piece 5 when having equidimension and position not, measuring pole 11 still possesses reliable anti deformability when carrying out remote detection, thereby the precision that the guarantee thickness detected.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides an mould and lower mould stroke adjusting device on bender, includes bed die (1), fixed mounting in hydraulic stem I (4) on bed die (1) top left and right sides and places in board work piece (5) on bed die (1) top, its characterized in that: one of them hydraulic stem II (6) is equipped with on one side of hydraulic stem I (4), hydraulic stem II (6) fixed mounting is in one side of bed die (1), the bottom of hydraulic stem I (4) is equipped with hydraulic stem (7) and power tube (9), the inner chamber of other end intercommunication hydraulic stem II (6) of hydraulic stem (7), the hydraulic pressure station of the other end intercommunication hydraulic stem I (4) of power tube (9), it is equipped with fuel tap (8) just to be close to hydraulic stem II (6) department on hydraulic stem (7), fuel tap (8) are used for controlling the oil circuit break-make of hydraulic stem (7), the top of hydraulic stem II (6) is equipped with block (10), one side fixedly connected with detection pole (11) of block (10), but the bottom of detection pole (11) contacts the top of board work piece (5).
2. The upper die and lower die stroke adjusting device of the bending machine as claimed in claim 1, wherein: the cap (10) and the hydraulic rod II (6) are in threaded connection and do not need to be screwed.
3. The upper die and lower die stroke adjusting device of the bending machine as claimed in claim 1, wherein: the detection rod (11) is in a trapezoid shape with a variable cross section, the bottom surface is a plane, and the top surface is an inclined plane.
4. The upper die and lower die stroke adjusting device of the bending machine as claimed in claim 1, wherein: the hydraulic pipe (7) is a metal alloy circular pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910906919.XA CN110639983B (en) | 2019-09-24 | 2019-09-24 | Stroke adjusting device for upper die and lower die of bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910906919.XA CN110639983B (en) | 2019-09-24 | 2019-09-24 | Stroke adjusting device for upper die and lower die of bending machine |
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| Publication Number | Publication Date |
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| CN110639983A true CN110639983A (en) | 2020-01-03 |
| CN110639983B CN110639983B (en) | 2021-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910906919.XA Active CN110639983B (en) | 2019-09-24 | 2019-09-24 | Stroke adjusting device for upper die and lower die of bending machine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0531546A (en) * | 1991-07-26 | 1993-02-09 | Nec Corp | Device for manufacturing sealed plate |
| CN102966615A (en) * | 2012-11-26 | 2013-03-13 | 山东法因数控机械股份有限公司 | Servo hydraulic control system with automatically adjustable punching stroke and speed of punch press |
| CN204953635U (en) * | 2015-09-21 | 2016-01-13 | 云南省机械研究设计院 | Can improve stroke adjustment structure of stamping die blanking precision |
| CN205032505U (en) * | 2015-08-20 | 2016-02-17 | 江苏一机机械科技有限公司 | High accuracy hydraulic bending machine |
| CN209035215U (en) * | 2018-11-22 | 2019-06-28 | 黄石华信机械设备有限公司 | A kind of slider of bender stroke adjusting device |
-
2019
- 2019-09-24 CN CN201910906919.XA patent/CN110639983B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0531546A (en) * | 1991-07-26 | 1993-02-09 | Nec Corp | Device for manufacturing sealed plate |
| CN102966615A (en) * | 2012-11-26 | 2013-03-13 | 山东法因数控机械股份有限公司 | Servo hydraulic control system with automatically adjustable punching stroke and speed of punch press |
| CN205032505U (en) * | 2015-08-20 | 2016-02-17 | 江苏一机机械科技有限公司 | High accuracy hydraulic bending machine |
| CN204953635U (en) * | 2015-09-21 | 2016-01-13 | 云南省机械研究设计院 | Can improve stroke adjustment structure of stamping die blanking precision |
| CN209035215U (en) * | 2018-11-22 | 2019-06-28 | 黄石华信机械设备有限公司 | A kind of slider of bender stroke adjusting device |
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| CN110639983B (en) | 2021-05-04 |
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| CB03 | Change of inventor or designer information |
Inventor after: Gu Zheng Inventor after: Li Xiaocheng Inventor before: Li Xiaocheng |
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| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210415 Address after: Building C3 south, 16888 Jingshi East Road, Shengjing street, Zhangqiu District, Jinan City, Shandong Province 250202 Applicant after: SHANDONG GUERMEI METAL PRODUCT Co.,Ltd. Address before: 330000 No.64, Nanxi village, Guangfu Town, Nanchang County, Nanchang City, Jiangxi Province Applicant before: Li Xiaocheng |
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