CN112845695B - A bending angle and disturbance compensation device for a bending machine - Google Patents
A bending angle and disturbance compensation device for a bending machine Download PDFInfo
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- CN112845695B CN112845695B CN202110080164.XA CN202110080164A CN112845695B CN 112845695 B CN112845695 B CN 112845695B CN 202110080164 A CN202110080164 A CN 202110080164A CN 112845695 B CN112845695 B CN 112845695B
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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
- B21D5/006—Bending sheet metal along straight lines, e.g. to form simple curves combined with measuring of bends
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention relates to a bending angle and deflection compensation device for a bending machine, which comprises a long base, wherein a mounting groove arranged along the X-axis direction is arranged above the base along the whole length, a bending angle compensation mechanism and a deflection compensation mechanism are arranged in the mounting groove, the bending angle compensation mechanism comprises a plurality of wedge blocks arranged along the whole length of the mounting groove, the top of each wedge block is provided with an inclined surface A inclined along the Y-axis direction, every two adjacent wedge blocks are hinged through a connecting shaft, one side of the base is provided with a push-pull driving mechanism corresponding to each connecting shaft, the output end of the push-pull driving mechanism is connected with the connecting shafts, the tops of all wedge blocks are provided with wedge plates, the bottom surfaces of the wedge plates are matched with the inclined surfaces A at the tops of the wedge blocks, and the top surfaces of the wedge plates are parallel to the horizontal plane; the deflection compensation mechanism is arranged on the top surface of the wedge-shaped plate, a cover plate is arranged at the top of the deflection compensation mechanism, and the top of the cover plate is used for mounting a lower die; the invention improves the bending precision and the consistency of the bending angle of the workpiece in the full-length range.
Description
Technical Field
The invention relates to the field of bending machines, in particular to a bending angle and deflection compensation device for a bending machine.
Background
The bender can produce ascending degree of disturbance and warp bottom the slider in the in-process of bending, in order to improve the precision of bending, the workstation of slider below designs into the degree of disturbance compensation mechanism that can compensate this deformation, however at the actual sheet material in-process of bending, because there is the error in panel thickness, same panel has certain error in the thickness of different positions, can lead to the process of bending each part stress inequality, there is the angle error on the full length direction of bending because of panel thickness error and material difference can't be overcome in the slider position control of bender, thereby the precision of the finished piece of bending has been influenced.
Disclosure of Invention
The invention aims to solve the problem that the consistency of the bending angle of a bending machine is poor due to the self error and material difference of a plate in the bending process, and provides a bending angle and deflection compensation device for the bending machine.
The specific scheme of the invention is as follows: a bending angle and deflection compensating device for a bending machine comprises a long base, a mounting groove arranged along the X-axis direction is arranged above the base along the whole length, a bending angle compensating mechanism and a deflection compensating mechanism are arranged in the mounting groove, the bending angle compensation mechanism comprises a plurality of wedge blocks arranged along the whole length of the mounting groove, an inclined surface A is arranged at the top of each wedge block, the inclined surface A inclines along the Y-axis direction, the length of each wedge block along the Y-axis direction is smaller than the width of the mounting groove so as to reserve a moving space along the Y-axis direction, every two adjacent wedge blocks are hinged through a connecting shaft, a push-pull driving mechanism is respectively arranged at one side of the base corresponding to each connecting shaft, the output end of each push-pull driving mechanism is connected with the connecting shafts, wedge plates are arranged at the tops of all the wedge blocks, the bottom surfaces of the wedge plates are matched with the inclined surfaces A at the tops of the wedge blocks, and the top surfaces of the wedge plates are parallel to the horizontal plane; the deflection compensation mechanism is arranged on the top surface of the wedge-shaped plate, a cover plate is arranged at the top of the deflection compensation mechanism, and the top of the cover plate is used for mounting a lower die.
The two sides of the wedge block along the X-axis direction are respectively provided with an upper support plate and a lower support plate, and the upper support plate/the lower support plate on one side of each wedge block and the lower support plate/the upper support plate of the adjacent wedge block are hinged with the connecting shaft together.
The deflection compensation mechanism comprises a lower wedge-shaped plate and an upper wedge-shaped plate, wherein the lower wedge-shaped plate is arranged above the wedge-shaped plate, the length of the lower wedge-shaped plate is smaller than that of a mounting groove so as to leave a moving space along a Y axis, a plurality of inclined planes B are arranged at the top of the lower wedge-shaped plate along the whole length, the inclined planes B in the middle are inclined along the Y axis direction, the inclined angles of the inclined planes B are the largest, the inclined angles of the inclined planes B from the middle to two ends are gradually reduced, a pushing mechanism is arranged at one end of a base, the output end of the pushing mechanism is fixedly connected with the lower wedge-shaped plate, the top of the lower wedge-shaped plate is provided with the upper wedge-shaped plate, the bottom surface of the upper wedge-shaped plate is matched with the lower wedge-shaped plate, the top surface of the upper wedge-shaped plate is parallel to the horizontal plane and protrudes out of the base, and the cover plate is arranged at the top of the upper wedge-shaped plate.
The wedge-shaped plate, the lower wedge-shaped plate and the upper wedge-shaped plate are formed by connecting a plurality of blocks in a segmented manner.
The push-pull driving mechanism and the pushing mechanism adopt servo hydraulic cylinders.
The working principle of the invention is as follows: degree of disturbing compensation mechanism and the angle compensation mechanism of bending independently function each other, degree of disturbing compensation mechanism theory of operation is the same with prior art, and the angle compensation mechanism's of bending working process as follows: (a) pre-bending the workpiece to reach a target angle under the control of a numerical control system; the upper die presses the workpiece and keeps the position and the posture of the workpiece unchanged; the measuring system carries out multi-point detection on the pre-bending angle of the workpiece along the whole length, and workpiece pre-bending data acquisition is completed.
(b) And lifting the sliding block by a small amount to just unload, wherein the workpiece rebounds to be in a free state, and the laser detection system performs multipoint detection on the rebounded angle of the workpiece along the full length again to finish data acquisition of the rebounded workpiece.
(c) The numerical control system respectively calculates the rebound quantity and the angle deviation of each full-length point according to the data acquired twice, and calculates and controls the compensation quantity of each wedge block of the plate thickness error and material difference compensation system and the increment of a bottom dead center of the sliding block through a system program; and the slide block descends to a new bottom dead center again to carry out final bending.
(d) The slide block is lifted and unloaded, the workpiece rebounds to the final required angle and the full length of the angle is ensured to be consistent;
the bending angle compensation principle of each point is as follows: if the bending angle at a certain point is actually measured by the measuring system to be greater than a set angle, the main control system controls the push-pull driving mechanism closest to the point to act, calculates the distance of the wedge block at the point to move, and converts and calculates the telescopic distance of the output end of the corresponding push-pull driving mechanism to realize accurate control feedback; after the compensation action is finished, the slider of the bending machine is pressed down again to perform secondary bending, and the set bending angle can be reached.
Compared with the prior art, the invention has the following advantages: 1. the deflection compensation can be carried out, the bending angle can be compensated, the consistency of the bending angle of the whole length of the workpiece is realized, and the bending precision is improved; 2. each wedge block is controlled by two push-pull driving mechanisms, each push-pull driving mechanism can control two adjacent wedge blocks, and the two push-pull driving mechanisms at the two ends of each wedge block jointly act to realize that compensation of each point on the wedge block is changed continuously, so that the phenomenon of sudden change of a certain point cannot occur.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a view A-A of FIG. 1;
FIG. 3 is a view B-B of FIG. 1;
FIG. 4 is a view C-C of FIG. 1;
in the figure: the method comprises the following steps of 1-base, 2-wedge block, 21-upper support plate, 22-lower support plate, 3-pushing mechanism, 4-push-pull driving mechanism, 5-connecting shaft, 6-wedge plate, 7-lower wedge plate, 8-upper wedge plate, 9-cover plate, 10-inclined surface A and 11-inclined surface B.
Detailed Description
Referring to fig. 1-4, the bending angle and deflection compensation device for a bending machine in this embodiment includes a long base 1, a mounting groove arranged along an X-axis direction is provided above the base 1 along a full length, a bending angle compensation mechanism and a deflection compensation mechanism are provided in the mounting groove, the bending angle compensation mechanism includes a plurality of wedges 2 arranged along the full length of the mounting groove, a slope a10 is provided at a top of each wedge 2, the slope a10 inclines along a Y-axis direction, a length of the wedge 2 along the Y-axis direction is smaller than a width of the mounting groove to leave a moving space along the Y-axis direction, each two adjacent wedges 2 are hinged by a connecting shaft 5, a push-pull driving mechanism 4 is provided at a side of the base 1 corresponding to each connecting shaft 5, an output end of the push-pull driving mechanism 4 is connected with the connecting shaft 5, a wedge plate 6 is provided at a top of all wedges 2, a bottom surface of the wedge plate 6 is matched with a top slope a10 of the wedge 2, the top surface of the wedge-shaped plate 6 is parallel to the horizontal plane; the deflection compensation mechanism is arranged on the top surface of the wedge-shaped plate 6, a cover plate 9 is arranged at the top of the deflection compensation mechanism, and the top of the cover plate 9 is used for installing a lower die.
In this embodiment, two sides of the wedge 2 along the X-axis direction are respectively provided with an upper support plate 21 and a lower support plate 22, and the upper support plate 21/lower support plate 22 on one side of each wedge 2 and the lower support plate 22/upper support plate 21 of the adjacent wedge 2 are hinged to the connecting shaft 5.
This embodiment deflection compensation mechanism includes wedge plate 7 and last wedge plate 8 down, and lower wedge plate 7 is installed 6 tops of wedge plate, the length of lower wedge plate 7 is less than the mounting groove in order to leave the removal space along the Y axle, and lower wedge plate 7 top is equipped with a plurality of inclined plane B11 along the full length, and all inclined plane B11's incline direction is followed the Y axle direction, and inclined plane B11 inclination in the middle of being located is the biggest, and inclined plane B11 inclination from the middle to both ends reduces gradually, and pushing mechanism 3 is equipped with to 1 one end of base, and pushing mechanism 3's output and lower wedge plate 7 fixed connection, and upper wedge plate 8 is equipped with at lower wedge plate 7 top, and upper wedge plate 8 bottom surface and lower wedge plate 7 cooperate, and upper wedge plate 8's top surface and horizontal plane parallel and protruding base 1, apron 9 is installed at upper wedge plate 8 top.
In this embodiment, the wedge-shaped plate 6, the lower wedge-shaped plate 7 and the upper wedge-shaped plate 8 are formed by connecting a plurality of blocks in a segmented manner.
In this embodiment, the push-pull driving mechanism 4 and the pushing mechanism 3 are servo hydraulic cylinders.
Claims (5)
1. The utility model provides an angle of bending and degree of interference compensation arrangement for bender, includes microscler base, and the base top is equipped with a mounting groove of arranging along X axle direction along the full length, characterized by: the bending angle compensation mechanism and the deflection compensation mechanism are arranged in the mounting groove, the bending angle compensation mechanism comprises a plurality of wedge blocks which are arranged along the whole length of the mounting groove, an inclined plane A is arranged at the top of each wedge block, the inclined plane A inclines along the Y-axis direction, the length of each wedge block along the Y-axis direction is smaller than the width of the mounting groove so as to reserve a moving space along the Y-axis direction, every two adjacent wedge blocks are hinged through a connecting shaft, a push-pull driving mechanism is respectively arranged at one side of the base corresponding to each connecting shaft, the output end of each push-pull driving mechanism is connected with the connecting shafts, a wedge plate is arranged at the top of each wedge block, the bottom surface of each wedge plate is matched with the inclined plane A at the top of each wedge block, and the top surface of each wedge plate is parallel to the horizontal plane; the deflection compensation mechanism is arranged on the top surface of the wedge-shaped plate, a cover plate is arranged at the top of the deflection compensation mechanism, and the top of the cover plate is used for mounting a lower die.
2. The bending angle and deflection compensation device for the bending machine according to claim 1, wherein: an upper support plate and a lower support plate are respectively arranged on two sides of each wedge block along the X-axis direction, and the upper support plate/the lower support plate on one side of each wedge block and the lower support plate/the upper support plate of the adjacent wedge block are jointly hinged with the connecting shaft.
3. The bending angle and deflection compensation device for the bending machine according to claim 1, wherein: the deflection compensation mechanism includes wedge plate and last wedge plate down, and lower wedge plate is installed the wedge plate top, the length of wedge plate is less than the mounting groove in order to leave along the removal space of Y axle down, and lower wedge plate top is equipped with a plurality of inclined plane B along the full length, and the incline direction along Y axle direction of all inclined plane B, and inclined plane B inclination in the middle of being located is the biggest, and inclined plane B inclination from the middle to both ends reduces gradually, and pushing mechanism is equipped with to base one end, and pushing mechanism's output and lower wedge plate fixed connection, lower wedge plate top are equipped with the wedge plate, go up wedge plate bottom surface and the cooperation of wedge plate down, the top surface and the parallel and protruding base of horizontal plane of going up the wedge plate, the apron is installed at last wedge plate top.
4. The bending angle and deflection compensation device for the bending machine according to claim 1, wherein: the wedge-shaped plate, the lower wedge-shaped plate and the upper wedge-shaped plate are formed by connecting a plurality of blocks in a segmented manner.
5. The bending angle and deflection compensation device for the bending machine according to claim 1, wherein: the push-pull driving mechanism and the pushing mechanism adopt servo hydraulic cylinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110080164.XA CN112845695B (en) | 2021-01-21 | 2021-01-21 | A bending angle and disturbance compensation device for a bending machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110080164.XA CN112845695B (en) | 2021-01-21 | 2021-01-21 | A bending angle and disturbance compensation device for a bending machine |
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| Publication Number | Publication Date |
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| CN112845695A CN112845695A (en) | 2021-05-28 |
| CN112845695B true CN112845695B (en) | 2021-08-31 |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101468368B (en) * | 2007-12-25 | 2010-06-02 | 江苏扬力数控机床有限公司 | Anti-deflection apparatus of numerical control bending machine |
| CN101279337A (en) * | 2008-05-16 | 2008-10-08 | 无锡金球机械有限公司 | Large-sized bender bidirectional deflection compensation mechanism |
| CN201214113Y (en) * | 2008-07-07 | 2009-04-01 | 佛山市南海力丰机床有限公司 | Deflection compensation mechanism for bending machine worktable |
| CN201603789U (en) * | 2010-02-14 | 2010-10-13 | 安徽联盟模具工业股份有限公司 | Four-piece matching wedge-type deflection compensating device of bending machine |
| CN203578479U (en) * | 2013-10-11 | 2014-05-07 | 安徽联盟模具工业股份有限公司 | Two-piece dual-inclined-surface matched type bid-directional deflection compensation device of bending machine |
| CN103521574B (en) * | 2013-10-11 | 2016-06-22 | 安徽联盟模具工业股份有限公司 | Bender two panels double inclined plane formula bidirectional deflection compensation device |
| CN206065148U (en) * | 2016-09-07 | 2017-04-05 | 江苏力威剪折机床有限公司 | For the mechanism of bending machine workbench deflection compensation |
| CN107413905A (en) * | 2017-05-04 | 2017-12-01 | 佛山市富乐喜电子信息技术有限公司 | Bender bidirectional compensates workbench |
| CN111283041A (en) * | 2018-12-08 | 2020-06-16 | 湖北中锐锻压科技有限公司 | Bidirectional adjustment compensation workbench of bending machine |
| CN111283042A (en) * | 2018-12-08 | 2020-06-16 | 湖北中锐锻压科技有限公司 | Bender compensation workbench |
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