CN104998931A - Bending processing system and method based on crack detection feedback and clamping control - Google Patents
Bending processing system and method based on crack detection feedback and clamping control Download PDFInfo
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- CN104998931A CN104998931A CN201510362633.1A CN201510362633A CN104998931A CN 104998931 A CN104998931 A CN 104998931A CN 201510362633 A CN201510362633 A CN 201510362633A CN 104998931 A CN104998931 A CN 104998931A
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- bending
- work piece
- main frame
- drive motors
- pressure sensor
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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
-
- 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
Abstract
The invention relates to a bending processing system and method based on crack detection feedback and clamping control. The bending processing system comprises a drive motor which is arranged on a rack, a clamping fixing base and a main engine, wherein a bending shaft is arranged on the drive motor; a processed workpiece is arranged on the clamping fixing base. The bending processing system further comprises a capacitive sensing thickness detector, pressure sensors, a proximity switch, a detection feedback device and a control, wherein a first pressure sensor and the proximity switch are arranged at the bent part of the processed workpiece; the detection feedback device comprises an ultrasonic crack detector which is arranged on the clamping fixing base; the capacitive sensing thickness detector, the pressure sensors, the proximity switch and the ultrasonic crack detector are separately connected to the main engine through a DSP (Digital signal Processor) module. According to the bending processing system and method disclosed by the invention, a second pressure sensor is used for controlling clamping force, and the proportion of cracks is greatly reduced through crack detection and multi-stage bending, so that the processing quality is improved; and excessive bending is avoided by controlling the bending angle, so that the use safety of the equipment is improved.
Description
Technical field
The present invention relates to panel beating technical field, especially panel beating apparatus for bending.
Background technology
The plate bending machine of existing use, conventional organic pillow hydraulic pressure two class, mechanical bender utilizes motor to be realized moving up and down of work conjunction by series of gears speed change and eccentric wheel.Hydraulic bending press is then utilize hydraulic jack and a whole set of oil circuit control element to realize.These benders play an important role in large enterprise's batch production, but Bi Jing is due to expensive, complex structure, limit the universal of it.Along with the development of commodity economy, small articles of daily use stamped part is increasing, and small business and even individual business operator are in the urgent need to cheap, the simple plate bending machine of structure.
There is the small-sized bender of part in the market, the Simple bending processing of sheet material can be realized, but there is following shortcoming in it: rely on workman's experience setting bending moment of torsion during work, can not regulate in real time along with the thickness of sheet material, and adopt constant bending power, can not change along with the change of bending angle, sheet fabrication is of low quality, and the sheet material after bending exists crack defect; Sheet material after bending can only rely on naked eyes to detect, and detects inaccurate, poor effect; Lack angle controller, easily occur the situation that bending is excessive also there is potential safety hazard; Work piece relies on manual adjustment clamping, and clamping dynamics is often bigger than normal or less than normal, when causing bending work piece loosen or clamping place distortion excessive.
Summary of the invention
The applicant for the above-mentioned shortcoming of above-mentioned bending equipment, provide a kind of based on crack detection feedback with clamp the Bending Processing system and method that controls, it has delicate structure, feature that crudy is high.
The technical solution adopted in the present invention is as follows:
Based on the Bending Processing system that crack detection feedback controls with clamping, comprise the drive motors be installed in frame, grip the main frame of seat and control drive motors, the motor shaft of drive motors is installed bending axle, grip device work piece on seat;
Also comprise by the capacitive sensing thickness detector of the first support installing in frame, the controller that is installed on the first pressure sensor of gripping seat and proximity switch, detection feedback device and is connected with described main frame, described first pressure sensor by spring assembly in the mounting groove of block, described stop assembly is in the bending side of work piece, and described proximity switch is by the bending side of rod assemblies in work piece; Described detection feedback device comprises by the second holder device in gripping the supersonic crack detector on seat, and supersonic crack detector is positioned at the bending part of work piece; Described gripping on seat is also provided with the second pressure sensor, and the second pressure sensor is positioned at the clamping side of described work piece;
Described capacitive sensing thickness detector, the first pressure sensor, the second pressure sensor, proximity switch and supersonic crack detector are connected with main frame respectively by DSP data processing module; Described capacitive sensing thickness detector detects the thickness of work piece and data is delivered to main frame through the process of described DSP data processing module, torque signal, according to the thickness setting torque signal of work piece, is controlled the first output torque of drive motors by main frame by controller; Described supersonic crack detector detects the crackle amount of the bending part of the work piece after bending, and crackle amount is fed back to main frame by the process of described DSP data processing module, and main frame controls the second output torque of drive motors according to feedback information.
Based on the Bending Processing method that crack detection feedback controls with clamping, comprise the following steps:
The first step: the first pressure threshold value setting the first pressure sensor, sets the second pressure threshold value of the second pressure sensor;
Second step: work piece is placed in and grips on seat, regulate clamp pressure to the second pressure threshold value, pressure signal is delivered to main frame by the second pressure sensor;
3rd step: adjust the side that capacitive sensing thickness detector is placed in work piece by the first support;
4th step: the thickness of start-up capacitance induction thickness detector to work piece detects, and the thickness data of detection is by the process of DSP data processing module;
5th step: the thickness information of the work piece after process is delivered to main frame, host setting torque signal, controls the first output torque of drive motors by controller, drive motors drives bending axle to carry out first stage bending to work piece;
6th step: the first pressure sensor detects the pressure of the folding surface of work piece, when pressure reaches pressure threshold value, signal is delivered to main frame by the first pressure sensor, host setting torque signal, controlled the output torque of drive motors by controller, drive motors controls bending axle and carries out second stage bending;
7th step: proximity switch detects the approach signal of work piece bending end, and approach signal is delivered to main frame, main frame stops drive motors work;
8th step: the work piece of Bending Processing is delivered to detection feedback device, supersonic crack detector carries out crack detection to the bending part of work piece, detection data are fed back to main frame by the process of described DSP data processing module, main frame controls the second output torque of drive motors according to feedback information, and calculates the relative scale of the second output torque and the first output torque;
9th step: be installed on by next work piece and grip on seat, repeats the 3rd step to the 4th step;
Tenth step: the thickness information of the work piece after process is delivered to main frame, host setting torque signal, the first output torque of drive motors is controlled by controller, relative scale in the 5th step calculates output torque, and drive motors drives bending axle to carry out bending to work piece with this output torque;
11 step: repeat the 7th step carries out follow-up work piece Bending Processing to the tenth step.
Beneficial effect of the present invention is as follows:
The present invention controls stable clamp pressure by the second pressure sensor, avoid clamp pressure excessive or too small time work piece clamping place distortion excessive or produce loosen; The thickness of work piece is detected by capacitive sensing thickness detector, utilize main frame according to the initial output torque of the THICKNESS CONTROL drive motors of work piece, and adjust initial output torque by detecting crackle, with most suitable initial torque, first stage bending is carried out to work piece, avoid the excessive or too small impact on work piece of initial torque, the first pressure sensor is adopted to control the bending output torque of drive motors, second stage bending is carried out with bending output torque, by bending stage by stage, reduce crackle ratio widely, improve crudy; Proximity switch is set and automatically controls bending angle, prevent excessive bending, and proximity switch conveniently can regulate height and angle, adapts to the sheet metal component bending of many sizes, multi-angle.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is working state figure of the present invention.
Fig. 3 is the structural representation of detection feedback device of the present invention.
Fig. 4 is operation principle block diagram of the present invention.
In figure: 1, frame; 2, seat is gripped; 21, holding tank; 3, drive motors; 4, main frame; 5, work piece; 6, bending axle; 7, the first support; 8, capacitive sensing thickness detector; 9, DSP data processing module; 10, controller; 11, support bar; 12, proximity switch; 13, spring; 14, the first pressure sensor; 15, block; 16, the second support; 17, supersonic crack detector; 18, the second pressure sensor.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As shown in Figures 1 to 4, the Bending Processing system controlled with clamping based on crack detection feedback of the present embodiment, comprise the drive motors 3 be installed in frame 1, grip the main frame 4 of seat 2 and control drive motors 3, the motor shaft of drive motors 3 is installed bending axle 6, grip device work piece 5 on seat 2
The controller 10 also comprising the capacitive sensing thickness detector 8 be installed on by the first support 7 in frame 1, be installed on the first pressure sensor 14 of gripping seat 2 and proximity switch 12, detect feedback device and be connected with main frame 4, first pressure sensor 14 is installed on by spring 13 in the mounting groove of block 15, block 15 is installed on the bending side of work piece 5, and proximity switch 12 is installed on the bending side of work piece 5 by support bar 11; Detect feedback device to comprise and be installed on by the second support 16 the supersonic crack detector 17 gripped on seat 2, supersonic crack detector 17 is positioned at the bending part of work piece 5; Grip on seat 2 and the clamping side that second pressure sensor 18, second pressure sensor 18 is positioned at work piece 5 is also installed;
Capacitive sensing thickness detector 8, first pressure sensor 14, second pressure sensor 18, proximity switch 12 and supersonic crack detector 17 are connected with main frame 4 respectively by DSP data processing module 9; Capacitive sensing thickness detector 8 detects the thickness of work piece 5 and data is delivered to main frame 4 through DSP data processing module 9 process, torque signal, according to the thickness setting torque signal of work piece 5, is controlled drive motors 3 by controller 10 and carries out first stage bending with the first output torque and initial output torque to work piece 5 by main frame 4; Supersonic crack detector 17 detects the crackle amount of the bending part of the work piece 5 after bending, crackle amount is fed back to main frame 4 by DSP data processing module 9 process, and main frame 4 controls drive motors 3 according to feedback information and carries out second stage bending with the second output torque to work piece 5.
The first pressure threshold value is set in first pressure sensor 14, during work piece 5 bending, pressure is produced to the first pressure sensor 14, when pressure is more than the first pressure threshold value, first pressure sensor 14 controls the bending output torque of drive motors 3 by main frame 4, bending output torque is generally set as 1.2 ~ 1.5 times of the first output torque (initial output torque), and drive motors 3 continues bending with bending output torque to work piece 5; When work piece 5 touches proximity switch 12, stop drive motors 3 to work, complete bending operation; Work piece 5 after bending detects crackle amount through supersonic crack detector 17, crackle amount is fed back to main frame 4 by DSP data processing module 9 process, main frame 4 controls the second output torque of drive motors 3 according to feedback information, second output torque is 0.8 ~ 1 times of the first output torque, and drive motors 3 carries out bending using the second output torque as initial output torque to work piece 5; Due in Forging Process, the angle change of work piece 5, the first pressure sensor 14 is installed on by rotating shaft in the mounting groove of block 15 to change angle in real time;
Second pressure sensor 18 rule of thumb sets the second pressure threshold value, when work piece 5 is installed, the pressure that second pressure sensor 18 detects must reach the second pressure threshold value, otherwise drive motors 3 does not work, second pressure sensor 18 controls stable clamp pressure, avoid clamp pressure excessive or too small time work piece 5 clamping place distortion excessive or produce loosen;
Proximity switch 12, for limiting the bending angle of work piece 5, when it receives approach signal, stops drive motors 3 to work by main frame 4 automatically; For ease of carrying out bending angle adjustment to different work pieces 5, support bar 11 by screw can in holding tank 21 adjusting position; Proximity switch 12 by screw can in the mounting groove of support bar 11 adjusting angle and height.
The Bending Processing method controlled with clamping based on crack detection feedback of the present embodiment, comprises the following steps:
The first step: the first pressure threshold value setting the first pressure sensor 14, sets the second pressure threshold value of the second pressure sensor 18;
Second step: work piece 5 is placed in and grips on seat 2, regulate clamp pressure to the second pressure threshold value, pressure signal is delivered to main frame 4 by the second pressure sensor 18;
3rd step: adjust the side that capacitive sensing thickness detector 8 is placed in work piece 5 by the first support 7;
4th step: the thickness of start-up capacitance induction thickness detector 8 pairs of work pieces 5 detects, and the thickness data of detection is processed by DSP data processing module 9;
5th step: the thickness information of the work piece 5 after process is delivered to main frame 4, and main frame 4 sets torque signal, controls the first output torque of drive motors 3 by controller 10, drive motors 3 drives bending axle 6 pairs of work pieces 5 to carry out first stage bending;
6th step: the first pressure sensor 14 detects the pressure of the folding surface of work piece 5, when pressure reaches pressure threshold value, signal is delivered to main frame 4 by the first pressure sensor 14, main frame 4 sets torque signal, controlled the output torque of drive motors 3 by controller 10, drive motors 3 controls bending axle 6 and carries out second stage bending;
7th step: proximity switch 12 detects the approach signal of work piece 5 bending end, approach signal is delivered to main frame 4, main frame 4 stops drive motors 3 to work;
8th step: the work piece 5 of Bending Processing is delivered to detection feedback device, the bending part of supersonic crack detector 17 pairs of work pieces 5 carries out crack detection, detection data are fed back to main frame 4 by DSP data processing module 9 process, main frame 4 controls the second output torque of drive motors 3 according to feedback information, and calculates the relative scale of the second output torque and the first output torque;
9th step: be installed on by next work piece 5 and grip on seat 2, repeats the 3rd step to the 4th step;
Tenth step: the thickness information of the work piece 5 after process is delivered to main frame 4, main frame 4 sets torque signal, the first output torque of drive motors 3 is controlled by controller 10, relative scale in the 5th step calculates output torque, and drive motors 3 drives bending axle 6 pairs of work pieces 5 to carry out bending with this output torque;
11 step: repeat the 7th step carries out follow-up work piece 5 Bending Processing to the tenth step.
The present invention controls stable clamp pressure by the second pressure sensor 18, avoid clamp pressure excessive or too small time work piece 5 clamping place distortion excessive or produce loosen, the thickness of work piece 5 is detected by capacitive sensing thickness detector 8, utilize main frame 4 according to the initial output torque of the THICKNESS CONTROL drive motors 3 of work piece 5, and adjust initial output torque by detecting crackle, with most suitable initial torque, first stage bending is carried out to work piece 5, avoid the excessive or too small impact on work piece 5 of initial torque, the first pressure sensor 14 is adopted to control the bending output torque of drive motors 3, second stage bending is carried out with bending output torque, by bending stage by stage, reduce crackle ratio widely, improve crudy, proximity switch 12 is set and automatically controls bending angle, prevent excessive bending, and proximity switch 12 conveniently can regulate height and angle, adapts to the sheet metal component bending of many sizes, multi-angle.
In the present invention, capacitive sensing thickness detector 8, supersonic crack detector 17, DSP data processing module 9, controller 10 and pressure sensor are prior art.
More than describing is explanation of the invention, and be not the restriction to invention, limited range of the present invention is see claim, and when without prejudice to spirit of the present invention, the present invention can do any type of amendment.
Claims (2)
1. the Bending Processing system controlled with clamping based on crack detection feedback, comprise the drive motors (3) be installed in frame (1), grip the main frame (4) of seat (2) and control drive motors (3), the motor shaft of drive motors (3) is installed bending axle (6), grip the upper device work piece (5) of seat (2), it is characterized in that:
Also comprise the capacitive sensing thickness detector (8) be installed on by the first support (7) in frame (1), be installed on the first pressure sensor (14) and proximity switch (12) that grip seat (2), the controller (10) detecting feedback device and be connected with described main frame (4), described first pressure sensor (14) is installed in the mounting groove of block (15) by spring (13), described block (15) is installed on the bending side of work piece (5), described proximity switch (12) is installed on the bending side of work piece (5) by support bar (11), described detection feedback device comprises and is installed on by the second support (16) the supersonic crack detector (17) gripped on seat (2), and supersonic crack detector (17) is positioned at the bending part of work piece (5), described gripping on seat (2) is also provided with the second pressure sensor (18), and the second pressure sensor (18) is positioned at the clamping side of described work piece (5),
Described capacitive sensing thickness detector (8), the first pressure sensor (14), the second pressure sensor (18), proximity switch (12) and supersonic crack detector (17) are connected with main frame (4) respectively by DSP data processing module (9); Described capacitive sensing thickness detector (8) is detected the thickness of work piece (5) and data is delivered to main frame (4) through described DSP data processing module (9) process, torque signal, according to the thickness setting torque signal of work piece (5), is controlled the first output torque of drive motors (3) by main frame (4) by controller (10); Described supersonic crack detector (17) detects the crackle amount of the bending part of the work piece (5) after bending, crackle amount is fed back to main frame (4) by described DSP data processing module (9) process, and main frame (4) controls the second output torque of drive motors (3) according to feedback information.
2. utilize the Bending Processing method controlled with clamping based on crack detection feedback of claim 1, it is characterized in that comprising the following steps:
The first step: the first pressure threshold value setting the first pressure sensor (14), sets the second pressure threshold value of the second pressure sensor (18);
Second step: work piece (5) is placed in and grips on seat (2), regulate clamp pressure to the second pressure threshold value, pressure signal is delivered to main frame (4) by the second pressure sensor (18);
3rd step: adjust the side that capacitive sensing thickness detector (8) is placed in work piece (5) by the first support (7);
4th step: start-up capacitance induction thickness detector (8) thickness to work piece (5) detects, the thickness data of detection is by DSP data processing module (9) process;
5th step: the thickness information of the work piece (5) after process is delivered to main frame (4), main frame (4) setting torque signal, controlled the first output torque of drive motors (3) by controller (10), drive motors (3) drives bending axle (6) to carry out first stage bending to work piece (5);
6th step: the first pressure sensor (14) detects the pressure of the folding surface of work piece (5), when pressure reaches pressure threshold value, signal is delivered to main frame (4) by the first pressure sensor (14), main frame (4) setting torque signal, controlled the output torque of drive motors (3) by controller (10), drive motors (3) controls bending axle (6) and carries out second stage bending;
7th step: proximity switch (12) detects the approach signal of work piece (5) bending end, is delivered to main frame (4) by approach signal, main frame (4) stops drive motors (3) work;
8th step: the work piece (5) of Bending Processing is delivered to detection feedback device, the bending part of supersonic crack detector (17) to work piece (5) carries out crack detection, data will be detected and feed back to main frame (4) by described DSP data processing module (9) process, main frame (4) controls the second output torque of drive motors (3) according to feedback information, and calculates the relative scale of the second output torque and the first output torque;
9th step: be installed on by next work piece (5) and grip on seat (2), repeats the 3rd step to the 4th step;
Tenth step: the thickness information of the work piece (5) after process is delivered to main frame (4), main frame (4) setting torque signal, the first output torque of drive motors (3) is controlled by controller (10), relative scale in the 5th step calculates output torque, and drive motors (3) drives bending axle (6) to carry out bending to work piece (5) with this output torque;
11 step: repeat the 7th step carries out follow-up work piece (5) Bending Processing to the tenth step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510362633.1A CN104998931A (en) | 2015-06-26 | 2015-06-26 | Bending processing system and method based on crack detection feedback and clamping control |
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| CN201510362633.1A CN104998931A (en) | 2015-06-26 | 2015-06-26 | Bending processing system and method based on crack detection feedback and clamping control |
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Cited By (3)
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| CN105268784A (en) * | 2015-11-28 | 2016-01-27 | 孙新梅 | Heating and stamping device for crack detection of bent position |
| CN105290165A (en) * | 2015-11-28 | 2016-02-03 | 谭华 | Sheet metal stamping device with counting and crack detection |
| CN108115005A (en) * | 2017-11-23 | 2018-06-05 | 安徽省天坛重工机床制造有限公司 | A kind of bending system of hydraulic pressure plate numerical control bender |
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| CN108115005A (en) * | 2017-11-23 | 2018-06-05 | 安徽省天坛重工机床制造有限公司 | A kind of bending system of hydraulic pressure plate numerical control bender |
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Application publication date: 20151028 |