CN115365337A - Automatic bending processing mode for non-rectangular plate - Google Patents
Automatic bending processing mode for non-rectangular plate Download PDFInfo
- Publication number
- CN115365337A CN115365337A CN202211033644.1A CN202211033644A CN115365337A CN 115365337 A CN115365337 A CN 115365337A CN 202211033644 A CN202211033644 A CN 202211033644A CN 115365337 A CN115365337 A CN 115365337A
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- China
- Prior art keywords
- bending
- rectangular plate
- processing mode
- feeding distance
- edges
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- 238000005452 bending Methods 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000005516 engineering process Methods 0.000 claims abstract description 6
- 238000004364 calculation method Methods 0.000 claims description 7
- 238000003754 machining Methods 0.000 claims description 7
- 238000003672 processing method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Images
Classifications
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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
- B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work
-
- 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
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/14—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by turning devices, e.g. turn-tables
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses an automatic bending processing mode for a non-rectangular plate. The method comprises the following steps: 1) Inputting the geometric information of the slab into the system; 2) Selecting a bending processing technology and a processing size in a system interface; 3) Placing the plate blank on a workbench and positioning; 4) Clamping a plate blank by using a clamp, driving a feeding mechanism by a servo system, feeding the plate blank to a bending position, and automatically bending one edge of the plate blank; 5) And sequentially calculating the feeding distance and processing other edges to be processed until all the edges are processed. According to the automatic bending processing mode for the non-rectangular plate, the feeding distance and the bending size can be automatically calculated only by inputting the geometric data on the drawing into the system, and the processing can be completed by positioning once.
Description
Technical Field
The invention relates to the field of bending processing, in particular to an automatic bending processing mode for a non-rectangular plate.
Background
The non-rectangular plate generally refers to a plate with a geometrical non-rectangular main outline or a plate with a non-rectangular bent and molded bottom surface. Generally, a common electrohydraulic bending machine is used for bending a product by matching a forming die, and the product can be machined only by manual turning or deviation after one time of bending is finished, while different types of products often need dies with different specifications, and in the prior art, a corresponding mechanism (such as a material stop mechanism) usually needs to be positioned for multiple times in the machining process.
In addition, when a non-rectangular plate is machined by using a bending center, because the feeding size cannot be calculated, the non-rectangular plate cannot be fully automatically bent.
Therefore, the non-rectangular plate bending processing mode in the prior art cannot realize automatic calculation and full-automatic bending, can be completed only by positioning for many times, and is large in labor participation amount, low in production and processing efficiency, large in programming difficulty and not suitable for batch processing.
Disclosure of Invention
In order to solve the problems, the invention provides an automatic bending processing mode for a non-rectangular plate.
According to one aspect of the invention, an automatic bending processing mode for a non-rectangular plate is provided, which comprises the following steps:
1) Inputting geometric information of the slab into the system;
2) Selecting a bending processing technology and a processing size in a system interface;
3) Placing the plate blank on a workbench and positioning;
4) Clamping the plate blank by using a clamp, automatically calculating a feeding distance by a system, and automatically bending one edge of the plate blank;
5) Sequentially calculating the feeding distance and processing other edges to be processed until all the edges are processed;
when the included angle between the edge to be processed and other edges is not 90 degrees, the feeding distance is K = OM + S; and when the included angle between the edge to be processed and other edges is 90 degrees, the feeding distance is K = L/2-S or W/2-S.
According to the automatic bending processing mode for the non-rectangular plate, the feeding distance and the bending size can be automatically calculated only by inputting geometric data on a drawing into a system, and the processing can be completed by positioning once.
In some embodiments, in step 1), the geometric information of the slab is entered according to the information provided by the machining drawing. The method has the advantage that the specific basis for inputting the geometric information of the slab into the system is described.
In some embodiments, in step 1), the geometric information input includes the total length of the slab, the length of each side, and the degree of inclination angle. It is advantageous to describe the specific kind of geometrical information of the slab that is input.
In some embodiments, in step 2), the bending process includes normal bending, circular arc bending, and dead-edge bending. The bending machine has the advantages that various specific types of selectable bending machining processes are described.
In some embodiments, each bending process comprises both an upward bending and a downward bending. The bending machine has the advantages that the selection of bending machining processes is further described.
In some embodiments, in step 4), the system drives the feeding mechanism to feed the slab to the bending position when automatically calculating the feeding distance. The bending machine has the beneficial effects that the plate blank is conveyed to the bending position to be conveniently bent.
In some embodiments, in step 5), the rotating device is used to rotate the slab, thereby calculating the feeding distance and processing for the other edges to be processed in turn. It is advantageous to describe a method of processing each side of a blank in sequence.
In some embodiments, when the angle between the edge to be processed and the other edge is not 90 °, the feeding distance is calculated by:
ON＝L/2-(L-AF)；
AO＝sqrt(EF*EF/4+ON*ON)；
∠AON＝arcTan(EF/2*NO)；
∠AOM＝∠AON-α；
OM＝AO*cos∠AOM；
K＝OM-S。
it is beneficial to describe a specific calculation process of the feeding distance.
Drawings
Fig. 1 is a schematic diagram of geometric information of a non-rectangular plate in an automatic bending processing manner according to an embodiment of the present invention;
FIG. 2 is a diagram of an interface for inputting plate material information for the automatic bending method of non-rectangular plate shown in FIG. 1;
fig. 3 is a schematic view illustrating calculation of a feeding distance of a plate material in an automatic bending processing manner of a non-rectangular plate according to an embodiment shown in fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 schematically shows plate geometric information of a non-rectangular plate automatic bending processing method according to an embodiment of the present invention, fig. 2 shows a plate information input interface of the non-rectangular plate automatic bending processing method of fig. 1, and fig. 3 shows a calculated feeding distance of a plate of the non-rectangular plate automatic bending processing method of fig. 1. As shown in fig. 1 to 3, the processing mode is realized by matching a bending machine, a workbench, a clamp, a rotating device and the like and using a specially designed feeding distance calculation method.
The operation of the present processing method mainly includes several steps as described below.
Firstly, inputting relevant geometric information of a plate blank to be machined into an operating system of a bending machine according to a machining drawing, wherein the input geometric information comprises the total length of the plate blank, the length of each side, corresponding inclination angle degrees and the like.
As shown in fig. 1, taking the non-rectangular slab to be processed as a polygon ABCDEF as an example, the total width of the slab is W = EF = AD, and the distance from the oblique side to the bottom side of the slab is AF or ED.
Setting the total length of the slab, namely the distance from the BC side to the EF side as L; when the angle between the edge to be processed and the horizontal line is α, α =0 when the angle between the edge to be processed and the other edge is 90 °.
As shown in fig. 2, in order to facilitate the understanding of the operator, the angle α is named as angle 1 or angle 2, and the data such as the length of the distance ED from the oblique side to the bottom side of the slab, the length of the total width EF of the slab, and the angle of angle 1 or angle 2 may be input in the information input interface.
Next, a bending process and a machining size are selected in the system interface. The bending processing technology comprises a common bending process, an arc bending process and a dead edge bending process, and each bending process comprises an upward bending process and a downward bending process.
And then, placing the plate blank on a workbench of a bending machine, and positioning by using positioning blocks, wherein during positioning, two L-shaped positioning blocks which are axially symmetrically distributed are adopted to clamp two sides of the plate blank, so that the plate can be positioned at the center of the maximum enveloping rectangle to clamp.
And then, clamping the plate blank by using a clamp, and sequentially and automatically bending each side.
Taking one of the edges as an example, the feeding distance needs to be calculated and reprocessed according to an algorithm program for realizing the setting, wherein when the included angle between the edge to be processed and the other edge is 90 degrees or not 90 degrees, the method for calculating the feeding distance is different.
The method of calculating the feeding distance in the present invention is as follows.
As shown in fig. 3, when calculating the feeding distance of the AB edge (the included angle with other edges is not 90 °), assuming that the midpoint of L is O and the intersection point of L and AD is N, the distance between O and N is obtained as follows:
ON＝L/2-(L-AF)；
then according to the pythagorean theorem, there are:
AO＝sqrt(EF*EF/4+ON*ON)；
then ═ AON = arcTan (EF/2 × no);
a perpendicular line MO is made at the O crossing point, and the & lt MON = beta is set,
then = ≈ AON-beta = ≈ AON-alpha;
obtaining OM = AO cos AOM;
if the desired bending length, i.e. the dimension after bending forming is S, then:
the feeding distance K = OM-S.
After the feeding distance is calculated, the plate blank is conveyed to a designated position according to the feeding distance to finish the next bending processing, namely, the AB side is rotated to the position of the bending knife which is just folding, the rotating angle is alpha or alpha + n + 90 degrees, and the value of n is determined according to which side is just folding the bending knife during positioning.
Furthermore, when the calculated edge is at 90 ° to the other edge, then the feed distance = half the slab length (width) -the expected bend length, i.e.:
k = L/2-S or W/2-S.
After the processing of one edge is finished, the plate blank is rotated to the next appointed edge by using the rotating device, the feeding distance of the edge is calculated according to the feeding distance calculation mode again for bending processing, and finally, the calculation of the feeding distance and the processing of each edge to be processed of the plate blank are sequentially finished.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides an automatic processing mode of bending of non-rectangular plate which characterized in that: comprises the following steps
1) Inputting the geometric information of the slab into the system;
2) Selecting a bending processing technology and a processing size in a system interface;
3) Placing the plate blank on a workbench and positioning;
4) Clamping the plate blank by using a clamp, automatically calculating a feeding distance by using a system, and automatically bending one edge of the plate blank;
5) Sequentially calculating the feeding distance and processing other edges to be processed until all the edges are processed;
when the included angle between the edge to be processed and other edges is not 90 degrees, the feeding distance is K = OM + S; and when the included angle between the edge to be processed and other edges is 90 degrees, the feeding distance is K = L/2-S or W/2-S.
2. The automatic bending processing mode of the non-rectangular plate according to claim 1, characterized in that: in step 1), geometric information of the slab is input according to information provided by the machining drawing.
3. The automatic bending processing mode of the non-rectangular plate according to claim 1, characterized in that: in step 1), the geometric information input includes the total length of the slab, the length of each side and the degree of inclination angle.
4. The automatic bending processing mode for the non-rectangular plate according to claim 1, characterized in that: in the step 2), the bending processing technology comprises common bending, arc bending and dead edge bending.
5. The automatic bending processing mode for the non-rectangular plate according to claim 4, characterized in that: each bending processing technology comprises an upward bending process and a downward bending process.
6. The automatic bending processing mode of the non-rectangular plate according to claim 4, characterized in that: in the step 4), when the system automatically calculates the feeding distance, the feeding mechanism is driven to feed the slab to the bending position.
7. The automatic bending processing mode of the non-rectangular plate according to claim 1, characterized in that: in the step 5), the plate blank is rotated by using a rotating device, so that the feeding distance and the processing are sequentially calculated for other edges to be processed.
8. The automatic bending processing mode for the non-rectangular plate according to any one of claims 1 to 7, characterized in that: when the included angle between the edge to be processed and other edges is not 90 degrees, the calculation process of the feeding distance is as follows
ON＝L/2-(L-AF)；
AO＝sqrt(EF*EF/4+ON*ON)；
∠AON＝arcTan(EF/2*NO)；
∠AOM＝∠AON-α；
OM＝AO*cos∠AOM；
K＝OM-S。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211033644.1A CN115365337A (en) | 2022-08-26 | 2022-08-26 | Automatic bending processing mode for non-rectangular plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211033644.1A CN115365337A (en) | 2022-08-26 | 2022-08-26 | Automatic bending processing mode for non-rectangular plate |
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| Publication Number | Publication Date |
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| CN115365337A true CN115365337A (en) | 2022-11-22 |
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| CN202211033644.1A Pending CN115365337A (en) | 2022-08-26 | 2022-08-26 | Automatic bending processing mode for non-rectangular plate |
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Citations (10)
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|---|---|---|---|---|
| US3613365A (en) * | 1969-03-29 | 1971-10-19 | Verrina Spa | Hydraulic driving device for bending presses |
| JPH05136308A (en) * | 1991-11-12 | 1993-06-01 | Nec Yamagata Ltd | Formation of lead for semiconductor device |
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| JP2008169423A (en) * | 2007-01-10 | 2008-07-24 | Nisshin Steel Co Ltd | Austenitic stainless steel sheet for bending |
| CN102189153A (en) * | 2011-03-09 | 2011-09-21 | 苏州领航自动化科技有限公司 | Compacting device for metal sheet bending machine |
| CN206632145U (en) * | 2017-04-19 | 2017-11-14 | 天津奥特浦斯机电设备有限公司 | 135 ° of crane span structure abnormity cover plate angle one time bending and molding equipment |
| CN110814125A (en) * | 2019-10-25 | 2020-02-21 | 广州纽蓝客精密机床有限公司 | Bending method of numerical control bending machine |
| CN112154036A (en) * | 2018-05-24 | 2020-12-29 | 杰富意钢铁株式会社 | Method for manufacturing stamped member |
| CN112427965A (en) * | 2020-12-14 | 2021-03-02 | 安阳县水冶金盾机修厂 | Improved metal dustpan production line and processing method of peripheral bending die thereof |
-
2022
- 2022-08-26 CN CN202211033644.1A patent/CN115365337A/en active Pending
Patent Citations (10)
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|---|---|---|---|---|
| US3613365A (en) * | 1969-03-29 | 1971-10-19 | Verrina Spa | Hydraulic driving device for bending presses |
| JPH05136308A (en) * | 1991-11-12 | 1993-06-01 | Nec Yamagata Ltd | Formation of lead for semiconductor device |
| JPH0623683A (en) * | 1992-07-07 | 1994-02-01 | Amada Co Ltd | Method and device for controlling industrial robot |
| RU2194591C2 (en) * | 2000-11-27 | 2002-12-20 | Государственное учреждение Институт машиноведения и металлургии Дальневосточного отделения РАН | Method for making web of power frame of aircraft |
| JP2008169423A (en) * | 2007-01-10 | 2008-07-24 | Nisshin Steel Co Ltd | Austenitic stainless steel sheet for bending |
| CN102189153A (en) * | 2011-03-09 | 2011-09-21 | 苏州领航自动化科技有限公司 | Compacting device for metal sheet bending machine |
| CN206632145U (en) * | 2017-04-19 | 2017-11-14 | 天津奥特浦斯机电设备有限公司 | 135 ° of crane span structure abnormity cover plate angle one time bending and molding equipment |
| CN112154036A (en) * | 2018-05-24 | 2020-12-29 | 杰富意钢铁株式会社 | Method for manufacturing stamped member |
| CN110814125A (en) * | 2019-10-25 | 2020-02-21 | 广州纽蓝客精密机床有限公司 | Bending method of numerical control bending machine |
| CN112427965A (en) * | 2020-12-14 | 2021-03-02 | 安阳县水冶金盾机修厂 | Improved metal dustpan production line and processing method of peripheral bending die thereof |
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