CN215766949U - Laser cutting head keeps away barrier detection device - Google Patents
Laser cutting head keeps away barrier detection device Download PDFInfo
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- CN215766949U CN215766949U CN202122092454.4U CN202122092454U CN215766949U CN 215766949 U CN215766949 U CN 215766949U CN 202122092454 U CN202122092454 U CN 202122092454U CN 215766949 U CN215766949 U CN 215766949U
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Abstract
The utility model provides a laser cutting head obstacle avoidance detection device, which comprises: a display screen and a controller; the laser head is provided with a fixed support which is connected with a cutting nozzle in a threaded connection mode; a plurality of position height detection matrix modules for sensing and processing surface height information are arranged on the fixed support; the position height detection matrix modules are uniformly distributed around the cutting nozzle; the controller is connected with the position height detection matrix module to obtain height information of the position height detection matrix module and the processing surface, and when the height information exceeds a threshold range, an alarm is given; the controller is further connected with the display screen and used for displaying height information sensed by the position height detection matrix module. The utility model can quickly respond, efficiently and accurately detect the barrier and avoid the damage to the cutting nozzle. The utility model can know whether the cutting line has obstacles or interferents in real time in the cutting process, and sends out collision early warning signals before collision, thereby reducing collision risks.
Description
Technical Field
The utility model relates to the technical field of laser cutting, in particular to a laser cutting head obstacle avoidance detection device.
Background
The laser cutting is to irradiate the material to be cut by using high-power-density laser beams, so that the material is heated to a vaporization temperature quickly and is evaporated to form holes, and the holes continuously form slits with narrow width (such as about 0.1 mm) along with the movement of the laser beams to the material, so as to finish the cutting of the material.
Laser cutting that uses at present generally does not have the laser cutting head to keep away the barrier and detects the function, mostly reports to the police after the nozzle collision detects, and the in-process that bumps takes place, laser cutting machine are in high-speed motion, all can have the brake distance, so when detecting the collision, components and parts such as cutting head that can't avoid the collision to lead to have damaged.
SUMMERY OF THE UTILITY MODEL
The utility model provides an obstacle avoidance detection device for a laser cutting head, which can quickly respond, efficiently and accurately detect obstacles and avoid damage to a cutting nozzle.
The device comprises: a display screen and a controller; the laser head is provided with a fixed support which is connected with a cutting nozzle in a threaded connection mode;
a plurality of position height detection matrix modules for sensing and processing surface height information are arranged on the fixed support;
the position height detection matrix modules are uniformly distributed around the cutting nozzle;
the controller is connected with the position height detection matrix module to obtain height information of the position height detection matrix module and the processing surface, and when the height information exceeds a threshold range, an alarm is given;
the controller is further connected with the display screen and used for displaying height information sensed by the position height detection matrix module.
It is further noted that the position height detection matrix module adopts an US-015 ultrasonic circuit module.
The controller adopts an STC89C52RC singlechip or an AT89C series singlechip;
the display screen adopts a 1602 liquid crystal display module.
It should be further noted that the position height detection matrix module includes: an ultrasonic wave transmitting circuit;
the ultrasonic wave transmitting circuit includes: the circuit comprises a resistor R1, a resistor R2, a resistor R3, a triode Q1 and an emitting device U1;
the input end of the ultrasonic transmitting circuit is connected with the controller, the first end of the resistor R1, the first end of the resistor R2 and the first end of the transmitting device U1 are respectively connected with the input end of the ultrasonic transmitting circuit;
the second end of the resistor R1 and the emitter of the transistor Q1 are connected with a power supply;
the collector of the transistor Q1 and the second end of the emitting device U1 are respectively grounded through a resistor R3;
the second terminal of the resistor R2 is connected to the base of the transistor Q1.
It should be further noted that the position height detection matrix module further includes: an ultrasonic received signal processing circuit;
the ultrasonic reception signal processing circuit includes: the device comprises a resistor R4, a resistor R5, a resistor R6, a capacitor C1, a capacitor C2, a capacitor C3, a receiving and processing chip U3 and a receiving device U2;
the first interface of the receiving processing chip U3 is grounded through a receiving device U2;
the second interface of the receiving and processing chip U3 is grounded through a resistor R4 and a capacitor C1 in sequence;
the interface III of the receiving processing chip U3 is grounded through a capacitor C2;
the interface IV of the receiving processing chip U3 is grounded;
the interface five of the receiving processing chip U3 is connected with the first end of the resistor R6;
the second end of the resistor R6, the second end of the resistor R5 and the interface eight of the receiving processing chip U3 are respectively connected with a power supply;
the interface six of the receiving processing chip U3 is grounded through a capacitor C3;
the seventh interface of the receiving and processing chip U3 and the first end of the resistor R5 are respectively connected with the output end of the ultrasonic receiving signal processing circuit, and the output end of the ultrasonic receiving signal processing circuit is connected with the controller;
the receiving processing chip U3 adopts a CX20106A chip.
Further, it should be noted that the method further includes: an audible and visual alarm circuit;
the audible and visual alarm circuit comprises: the LED D1, the resistor R11, the resistor R12, the alarm U4 and the triode Q2;
the input end of the sound-light alarm circuit is connected with the controller;
the first end of the resistor R11 and the first end of the resistor R12 are respectively connected with the input end of the audible and visual alarm circuit; the second end of the resistor R12 is connected with the power supply through a light-emitting diode D1;
the second end of the resistor R11 is connected with the base electrode of the triode Q2; the collector of the triode Q2 is grounded through an alarm U4; the emitter of the transistor Q2 is connected with the power supply.
According to the technical scheme, the utility model has the following advantages:
according to the technical scheme, the height information can be fed back according to the position height detection matrix module, the feedback data is processed and analyzed through the controller, whether obstacles exist in the detection area or not and the interference state of the obstacles is judged and analyzed, and an alarm prompt or a stop instruction is given, so that the safe obstacle avoidance detection of the cutting head is realized.
The utility model can quickly respond, efficiently and accurately detect the barrier and avoid the damage to the cutting nozzle. The utility model can know whether the cutting line has obstacles or interferents in real time in the cutting process, and sends out collision early warning signals before collision, thereby reducing collision risks.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a laser cutting head obstacle avoidance detection device;
FIG. 2 is a schematic diagram of an embodiment of an obstacle avoidance detection device for a laser cutting head;
FIG. 3 is a diagram of an ultrasonic transmission circuit;
FIG. 4 is a circuit diagram of an ultrasonic received signal processing circuit;
fig. 5 is a circuit diagram of the acousto-optic alarm.
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.
The utility model provides a laser cutting head obstacle avoidance detection device, as shown in fig. 1 and 2, comprising: a display screen 6 and a controller 5; the laser head 1 is provided with a fixed support 7, and the fixed support 7 is connected with a cutting nozzle 2 in a threaded connection mode;
the fixed support 7 is provided with a plurality of position height detection matrix modules 3 for sensing and processing surface height information; the position height detection matrix module 3 is uniformly distributed around the cutting nozzle 2; a height detection between the working surface around the cutting tip 2 or the surface of the cutting element can be achieved.
The controller 5 is connected with the position height detection matrix module 3 to obtain the height information of the position height detection matrix module 3 and the processing surface, and when the height information exceeds the threshold range, an alarm is given;
that is, if the workpiece 4 is warped, or there is an obstacle on the cutting line, or the height of the workpiece exceeds the height between the cutting nozzle 2 and the processing surface, the position height detection matrix module 3 can detect before the cutting nozzle 2 runs to the position, and the controller 5 can acquire the height information in real time in the cutting process, and once the height information exceeds the threshold range, give an alarm to prevent the cutting nozzle 2 from colliding with the warped position of the workpiece or colliding with the obstacle.
The detection action of the laser cutting head obstacle avoidance detection device shown in fig. 1 is schematic. And the position 1 represents the state of the cutting head in normal operation, indicates the cutting head according to the movement direction, and detects the tilted steel plate in the position 2. The position 2 indicates that the tilted steel plate can be detected by the position height detection matrix module 3 and is prompted.
In the detection area range, the position of an obstacle is not detected, the plate is flat and does not tilt, and the cutting operation can be normally carried out.
In the detection area scope, it has barrier signal position to detect, and panel has the perk phenomenon, and at this moment, the high data feedback that position height detection matrix module 3 detected controller 5, controller 5 handles the analysis according to the high data of feedback, makes the judgement, sends out the signal simultaneously and gives cutting equipment, makes the barrier and reports to the police to stop continuing the antecedent.
The altitude information exceeding the threshold range may be the altitude information being higher than the exceeding threshold, or the altitude information being lower than the threshold range. If the cutting speed is lower than the threshold range, the workpiece may be pitted or broken, and the cutting process needs to be adjusted.
The controller 5 is also connected with the display screen 6, displays the height information induced by the position height detection matrix module 3, and can display the height information. Of course, the display screen 6 may be a display touch screen.
The controller 5 can be connected with a device controller of the cutting device to realize linkage with the cutting device. The control can be realized by adopting a PLC control mode, when the height information exceeds the threshold range, the controller 5 can send signals to the equipment controller while giving an alarm, and the equipment controller can control the cutting machine head to stop running, so that the cutting nozzle 2 is prevented from colliding the warping position of a workpiece or colliding a barrier.
In the utility model, the position height detection matrix module 3 adopts an US-015 ultrasonic circuit module. The controller 5 adopts an STC89C52RC singlechip or an AT89C series singlechip; the display screen 6 adopts a 1602 liquid crystal display module.
The controller 5 may be implemented using at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a processor, the controller 5, the microcontroller 5, a microprocessor, and an electronic unit designed to perform the functions described herein, and in some cases, such an implementation may be implemented in the controller 5. For a software implementation, the implementation such as a process or a function may be implemented with a separate software module that allows performing at least one function or operation. The software code may be embodied by a software application (or program) written in any suitable programming language, which may be stored in memory and executed by the controller 5.
As an embodiment of the present invention, as shown in fig. 3, the position height detection matrix module 3 includes: an ultrasonic wave transmitting circuit; the ultrasonic wave transmitting circuit includes: the circuit comprises a resistor R1, a resistor R2, a resistor R3, a triode Q1 and an emitting device U1;
the input end of the ultrasonic transmitting circuit is connected with the controller 5, the first end of the resistor R1, the first end of the resistor R2 and the first end of the transmitting device U1 are respectively connected with the input end of the ultrasonic transmitting circuit; the second end of the resistor R1 and the emitter of the transistor Q1 are connected with a power supply; the collector of the transistor Q1 and the second end of the emitting device U1 are respectively grounded through a resistor R3; the second terminal of the resistor R2 is connected to the base of the transistor Q1.
As shown in fig. 4, the position height detection matrix module 3 further includes: an ultrasonic received signal processing circuit; the ultrasonic reception signal processing circuit includes: the device comprises a resistor R4, a resistor R5, a resistor R6, a capacitor C1, a capacitor C2, a capacitor C3, a receiving and processing chip U3 and a receiving device U2; the first interface of the receiving processing chip U3 is grounded through a receiving device U2; the second interface of the receiving and processing chip U3 is grounded through a resistor R4 and a capacitor C1 in sequence; the interface III of the receiving processing chip U3 is grounded through a capacitor C2; the interface IV of the receiving processing chip U3 is grounded; the interface five of the receiving processing chip U3 is connected with the first end of the resistor R6; the second end of the resistor R6, the second end of the resistor R5 and the interface eight of the receiving processing chip U3 are respectively connected with a power supply; the interface six of the receiving processing chip U3 is grounded through a capacitor C3; the seventh interface of the receiving and processing chip U3 and the first end of the resistor R5 are respectively connected with the output end of the ultrasonic receiving signal processing circuit, and the output end of the ultrasonic receiving signal processing circuit is connected with the controller 5; the receiving processing chip U3 adopts a CX20106A chip.
The ultrasonic transmitting circuit and the ultrasonic receiving signal processing circuit of the position height detection matrix module 3 are mutually matched for use, so that the distance height is detected.
The signal output port of the controller 5 can send a control signal of 40kHz-60kHz to control the ultrasonic transmitting circuit to start detection. The transistor Q1 can be used as signal amplification to drive the ultrasonic transducer to generate and emit ultrasonic waves.
A receiving processing chip U3 in the laser cutting head obstacle avoidance detection device adopts a CX20106A chip. The receiving processing chip U3 has certain anti-interference capability, so that the calculation time of the ultrasonic ranging process is more accurate.
The alarm prompt related by the utility model can adopt an acousto-optic alarm circuit; as shown in fig. 5, the sound and light alarm circuit includes: the LED D1, the resistor R11, the resistor R12, the alarm U4 and the triode Q2; the input end of the sound-light alarm circuit is connected with the controller 5; the first end of the resistor R11 and the first end of the resistor R12 are respectively connected with the input end of the audible and visual alarm circuit; the second end of the resistor R12 is connected with the power supply through a light-emitting diode D1; the second end of the resistor R11 is connected with the base electrode of the triode Q2; the collector of the triode Q2 is grounded through an alarm U4; the emitter of the transistor Q2 is connected with the power supply.
The light emitting diode D1 and the alarm U4 can be arranged at a position where the cutting equipment is convenient for a cutting person to observe, so that the alarm can be sent out at the first time.
According to the technical scheme, the height information can be fed back according to the position height detection matrix module 3, the feedback data is processed and analyzed through the controller 5, whether obstacles exist in the detection area or not and the interference state of the obstacles is judged and analyzed, and an alarm prompt or a stop instruction is given, so that the safe obstacle avoidance detection of the cutting head is realized.
The utility model can quickly respond, efficiently and accurately detect the barrier and avoid the damage to the cutting nozzle 2. The utility model can know whether the cutting line has obstacles or interferents in real time in the cutting process, and sends out collision early warning signals before collision, thereby reducing collision risks.
The utility model can adjust the installation mode according to different types of cutting heads. The method has strong universality and operability.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a barrier detection device is kept away to laser cutting head which characterized in that includes: a display screen and a controller; the laser head is provided with a fixed support which is connected with a cutting nozzle in a threaded connection mode;
a plurality of position height detection matrix modules for sensing and processing surface height information are arranged on the fixed support;
the position height detection matrix modules are uniformly distributed around the cutting nozzle;
the controller is connected with the position height detection matrix module to obtain height information of the position height detection matrix module and the processing surface, and when the height information exceeds a threshold range, an alarm is given;
the controller is further connected with the display screen and used for displaying height information sensed by the position height detection matrix module.
2. The laser cutting head obstacle avoidance detecting device of claim 1,
the position height detection matrix module adopts an US-015 ultrasonic circuit module.
3. The laser cutting head obstacle avoidance detecting device of claim 1,
the controller adopts an STC89C52RC singlechip or an AT89C series singlechip;
the display screen adopts a 1602 liquid crystal display module.
4. The laser cutting head obstacle avoidance detecting device of claim 3,
the position height detection matrix module includes: an ultrasonic wave transmitting circuit;
the ultrasonic wave transmitting circuit includes: the circuit comprises a resistor R1, a resistor R2, a resistor R3, a triode Q1 and an emitting device U1;
the input end of the ultrasonic transmitting circuit is connected with the controller, the first end of the resistor R1, the first end of the resistor R2 and the first end of the transmitting device U1 are respectively connected with the input end of the ultrasonic transmitting circuit;
the second end of the resistor R1 and the emitter of the transistor Q1 are connected with a power supply;
the collector of the transistor Q1 and the second end of the emitting device U1 are respectively grounded through a resistor R3;
the second terminal of the resistor R2 is connected to the base of the transistor Q1.
5. The laser cutting head obstacle avoidance detecting device of claim 4,
the position height detection matrix module further comprises: an ultrasonic received signal processing circuit;
the ultrasonic reception signal processing circuit includes: the device comprises a resistor R4, a resistor R5, a resistor R6, a capacitor C1, a capacitor C2, a capacitor C3, a receiving and processing chip U3 and a receiving device U2;
the first interface of the receiving processing chip U3 is grounded through a receiving device U2;
the second interface of the receiving and processing chip U3 is grounded through a resistor R4 and a capacitor C1 in sequence;
the interface III of the receiving processing chip U3 is grounded through a capacitor C2;
the interface IV of the receiving processing chip U3 is grounded;
the interface five of the receiving processing chip U3 is connected with the first end of the resistor R6;
the second end of the resistor R6, the second end of the resistor R5 and the interface eight of the receiving processing chip U3 are respectively connected with a power supply;
the interface six of the receiving processing chip U3 is grounded through a capacitor C3;
the seventh interface of the receiving and processing chip U3 and the first end of the resistor R5 are respectively connected with the output end of the ultrasonic receiving signal processing circuit, and the output end of the ultrasonic receiving signal processing circuit is connected with the controller;
the receiving processing chip U3 adopts a CX20106A chip.
6. The laser cutting head obstacle avoidance detecting device of claim 3,
further comprising: an audible and visual alarm circuit;
the audible and visual alarm circuit comprises: the LED D1, the resistor R11, the resistor R12, the alarm U4 and the triode Q2;
the input end of the sound-light alarm circuit is connected with the controller;
the first end of the resistor R11 and the first end of the resistor R12 are respectively connected with the input end of the audible and visual alarm circuit; the second end of the resistor R12 is connected with the power supply through a light-emitting diode D1;
the second end of the resistor R11 is connected with the base electrode of the triode Q2; the collector of the triode Q2 is grounded through an alarm U4; the emitter of the transistor Q2 is connected with the power supply.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122092454.4U CN215766949U (en) | 2021-08-31 | 2021-08-31 | Laser cutting head keeps away barrier detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122092454.4U CN215766949U (en) | 2021-08-31 | 2021-08-31 | Laser cutting head keeps away barrier detection device |
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| CN215766949U true CN215766949U (en) | 2022-02-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115338548A (en) * | 2022-10-14 | 2022-11-15 | 四川智龙激光科技有限公司 | Obstacle avoiding method and system for cutting head of plane cutting machine |
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2021
- 2021-08-31 CN CN202122092454.4U patent/CN215766949U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115338548A (en) * | 2022-10-14 | 2022-11-15 | 四川智龙激光科技有限公司 | Obstacle avoiding method and system for cutting head of plane cutting machine |
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