CN111926323A - Anti-collision device and method for inner hole laser cladding head - Google Patents
Anti-collision device and method for inner hole laser cladding head Download PDFInfo
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- CN111926323A CN111926323A CN202010739772.2A CN202010739772A CN111926323A CN 111926323 A CN111926323 A CN 111926323A CN 202010739772 A CN202010739772 A CN 202010739772A CN 111926323 A CN111926323 A CN 111926323A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
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- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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Abstract
The invention provides an anti-collision device and an anti-collision method for an inner bore laser cladding head, wherein an inductive proximity sensor is innovatively integrated on the inner bore laser cladding head, when the inner bore laser cladding head is close to an inner bore workpiece, the inductive proximity sensor can send a detection signal to a programmable logic controller, the programmable logic controller performs an automatic stop function through the setting of an internal program, and displays alarm information on a human-computer interface to prompt an operator that the inner bore laser cladding head is about to collide with the inner wall of the workpiece at present, and after the operator retreats the inner bore laser cladding head from the surface of the inner wall of the workpiece and performs alarm reset on the human-computer interface, normal starting operation can be performed, the damage to the inner bore laser cladding head due to the false collision is avoided, and the anti-collision device and the anti-collision method have wide popularization and application prospects.
Description
Technical Field
The invention belongs to the technical field of advanced manufacturing, and particularly relates to an anti-collision device and an anti-collision method for an inner hole laser cladding head.
Background
The inner hole laser cladding technology is a method for manufacturing, strengthening and repairing the inner surface of a part by additive materials, which is widely applied. The inner hole laser cladding head is an integrated component for bearing light emission of a laser, cladding material conveying, molten pool monitoring and the like, and is indispensable to inner hole laser cladding equipment. The price of the inner hole laser cladding head is varied from tens of thousands yuan to tens of thousands yuan, the price is high, the work is precise, but in the inner hole laser cladding process, because the inner hole laser cladding head needs to enter the inside of a workpiece to operate, the depth of the inner hole workpiece is large, the distance between the cladding head and the workpiece is not easy to observe, the inner hole laser cladding head is often collided with the workpiece, the inner hole laser cladding head is damaged, the replacement of the inner hole laser cladding head can bring time waste, the economic cost is increased, and extra expenses are brought to enterprises.
The conventional inner hole laser cladding head mis-collision prevention technology mainly depends on a visual observation method to avoid the inner hole laser cladding head mis-collision, the method is limited by the depth of an internal control workpiece, and after the depth is increased, the visual observation is inaccurate, and the mis-collision is easily caused. Therefore, the problem that the inner hole laser cladding equipment is urgently needed to solve is how to avoid the inner hole laser cladding head from colliding with a workpiece by mistake in the operation process.
Disclosure of Invention
The invention aims to provide an anti-collision device and an anti-collision method for an inner hole laser cladding head, wherein an inductive proximity sensor is innovatively integrated on the inner hole laser cladding head, so that when the inner hole laser cladding head is close to an inner hole workpiece, the inductive proximity sensor can send a detection signal to a programmable logic controller, the programmable logic controller performs an automatic stop function through the setting of an internal program, displays alarm information on a human-computer interface, prompts an operator that the inner hole laser cladding head is about to collide with the inner wall of the workpiece at present, and can perform normal starting operation after the operator performs alarm reset on the human-computer interface after the inner hole laser cladding head is separated from the surface of the inner wall of the workpiece, so that the inner hole laser cladding head is prevented from being damaged due to the false collision, and the anti-collision device and the anti-collision method have wide popularization and application prospects.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an inner hole laser cladding head anti-collision device comprises: the device comprises an inner hole laser cladding head 1, an inductive proximity sensor 3, a switching power supply 4, a programmable logic controller 6 and a plurality of connecting wires; the inductive proximity sensor 3 is arranged on the inner hole laser cladding head 1, and the surface of a probe of the inductive proximity sensor 3 is horizontally flush with the cladding output surface of the inner hole laser cladding head 1, so that the induction detection distance of the inductive proximity sensor 3 is equal to the distance between the inner hole laser cladding head 1 and the surface of a workpiece to be clad; the switch power supply 4 is connected with the inductive proximity sensor 3 and the programmable logic controller 6 through leads, and the inductive proximity sensor 3 is connected with the programmable logic controller 6; the programmable logic controller 6 generates a false collision prevention signal based on the detection signal of the inductive proximity sensor 3.
Further, according to the inner hole laser cladding head anti-collision device provided by the invention, the inductive proximity sensor 3 is provided with a detection early warning distance, when the inductive proximity sensor 3 detects that the distance between the inductive proximity sensor and the surface of the workpiece to be clad is within the detection early warning distance, the inductive proximity sensor 3 generates and outputs a non-safety distance detection signal to the programmable logic controller, the programmable logic controller automatically generates a false collision prevention alarm signal when receiving the non-safety distance detection signal, when the inductive proximity sensor 3 detects that the distance to the surface of the workpiece to be clad is outside the detection response distance, the inductive proximity sensor 3 generates and outputs a safety distance detection signal to the programmable logic controller, and the programmable logic controller does not generate a false collision prevention alarm signal when receiving the safe distance detection signal.
Further, according to the inner hole laser cladding head anti-collision device provided by the invention, the switch power supply 4 comprises a mains supply input end, a first direct current voltage output end and a second direct current voltage output end, the mains supply input end is connected with 220V alternating current, the first direct current voltage output end is connected with the inductive proximity sensor 3 to provide working voltage for the inductive proximity sensor 3, and the second direct current voltage output end is connected with the programmable logic controller to provide working voltage for the programmable logic controller.
Further, according to the inner hole laser cladding head anti-collision device provided by the invention, the inductive proximity sensor 3 comprises a main power input end and a detection signal output end, the main power input end is connected to the first direct current voltage output end of the switch power supply 4, and the detection signal output end is connected to the programmable logic controller 6.
Further, according to the inner hole laser cladding head anti-collision device provided by the invention, the programmable logic controller 6 comprises an alternating current power supply input end, a direct current voltage input end and a detection signal input end, the alternating current power supply input end is connected to 220V alternating current, the direct current voltage input end is connected to a second direct current voltage output end of the switch power supply 4, and the detection signal input end is connected to a detection signal output end of the inductive proximity sensor 3.
Further, according to the inner hole laser cladding head anti-collision device provided by the invention, the inductive proximity sensor is an NPN inductive sensor, and when the distance between the inductive proximity sensor and the surface of the workpiece to be clad is detected to be within the detection early warning distance, the non-safety distance detection signal generated and output by the inductive proximity sensor 3 is a 0V detection voltage signal.
Further, according to the inner hole laser cladding head anti-collision device provided by the invention, the programmable logic controller is a PLC with the model number of DVP40EH00T 3.
Further, according to the inner hole laser cladding head anti-collision device provided by the invention, the first direct-current voltage output end and the second direct-current voltage output end of the switching power supply 4 both output 24V direct-current voltage.
The method for preventing the inner hole laser cladding head from mistakenly colliding based on the device for preventing the inner hole laser cladding head from mistakenly colliding comprises the following steps of:
firstly, an inductive proximity sensor and an inner hole laser cladding head are vertically and downwards flush mounted, so that the detection distance of the inductive proximity sensor is equal to the distance between the inner hole laser cladding head and a workpiece to be clad;
connecting a total power supply input end of the inductive proximity sensor with a first direct-current voltage output end of the switching power supply, and connecting a detection signal output end of the inductive proximity sensor with a detection signal input end of the programmable logic controller;
connecting a second direct-current voltage output end of the switching power supply with a direct-current voltage input end of the programmable logic controller;
step four, connecting the 220V alternating current with a mains supply input end of a switch power supply, and connecting the 220V alternating current with an alternating current power supply input end of a programmable logic controller;
and fifthly, setting a detection early warning distance in the inductive proximity sensor, when the inductive proximity sensor detects that the distance between the inductive proximity sensor and the surface of the workpiece to be clad is within the detection early warning distance, generating and outputting a non-safety distance detection signal to the programmable logic controller by the inductive proximity sensor, automatically generating a false collision prevention alarm signal when the programmable logic controller receives the non-safety distance detection signal, when the inductive proximity sensor detects that the distance between the inductive proximity sensor and the surface of the workpiece to be clad is beyond the detection response distance, generating and outputting a safety distance detection signal to the programmable logic controller by the inductive proximity sensor, and not generating the false collision prevention alarm signal when the programmable logic controller receives the safety distance detection signal.
Further, according to the method for preventing the inner hole laser cladding head from colliding, the inductive proximity sensor is an NPN inductive sensor, and when the distance between the inductive proximity sensor and the surface of the workpiece to be clad is detected to be within the detection early warning distance, a non-safety distance detection signal generated and output by the inductive proximity sensor 3 is a 0V detection voltage signal; the programmable logic controller is a PLC with the model number of DVP40EH00T3, and when the programmable logic controller receives the 0V detection voltage signal, an anti-collision alarm signal is generated based on an internal control program of the programmable logic controller.
The technical scheme of the invention can at least achieve the following beneficial effects:
1) the anti-error collision of the inner hole laser cladding head adopts an inductance type proximity sensor which is economical, practical, heat-resistant, anti-interference and capable of working in a severe industrial field as a detector, the distance between the inner hole laser cladding head and the surface of a workpiece is detected in advance under the condition of not contacting the surface of the workpiece, and the anti-error collision of the inner hole laser cladding head and the surface of the workpiece is avoided by quickly making a response within a safe distance. The inner hole laser cladding head is expensive, and after the inner hole laser cladding head is damaged, if the inner hole laser cladding head is replaced, the inner hole laser cladding head not only loses economically, but also wastes time caused by purchase period, installation, debugging and the like, and also loses economically to the whole equipment. The inductive proximity sensor used by the invention has the advantages of low price, high stability and long service life, and the application of the technology can enable laser cladding equipment to be advanced and automated and reduce the requirements of operators.
2) The invention adopts the inductive proximity sensor, can be integrated in any area of the equipment which is possible to be collided by mistake, and can simultaneously install a plurality of inductive proximity sensors in different directions, thereby playing the role of simultaneously protecting and preventing the surface of a workpiece from being collided by mistake in any direction. The inductive proximity sensor has wide detection distance and switching frequency range, can select specific models according to specific requirements, can be installed in an embedded mode or a non-embedded mode, and can select the model meeting the requirements of equipment according to actual conditions.
3) In conclusion, the inductive proximity sensor is arranged on the cladding head, the distance between the inner hole laser cladding head and the surface of the workpiece is judged by monitoring the distance, and a signal is fed back to the programmable logic controller, so that the inner hole laser cladding head is prevented from mistakenly colliding with the workpiece to cause the damage of the inner hole laser cladding head. The invention is not limited to the field of laser cladding, and is also suitable for processing other inner holes, such as inner hole surfacing. The invention has the advantages of accurate detection, quick response time, safety protection and false collision prevention.
Drawings
FIG. 1 is a schematic view of an installation structure of an anti-collision device of the inner hole laser cladding head of the invention;
FIG. 2 is a schematic diagram of a switching power supply and its circuit connection in the inner hole laser cladding head mis-collision prevention device of the present invention;
fig. 3 is a schematic diagram of a programmable logic controller and its circuit connection in the inner hole laser cladding head mis-collision prevention device of the present invention.
The meanings of the reference symbols in the figures are as follows:
1. the method comprises the following steps of (1) inner hole laser cladding head, (2) inner hole workpiece, (3) inductive proximity sensor, (4) switching power supply, (5.220) alternating current, (6) programmable logic controller, (7) first lead, 8) second lead, 9) third lead, 10 fourth lead, 11 fifth lead, 12 sixth lead, 13 seventh lead, 14 eighth lead and 15 ninth lead.
Detailed Description
The following detailed description of the embodiments of the present invention is provided to enable those skilled in the art to more clearly understand the present invention, but not to limit the scope of the present invention.
As shown in fig. 1 to 3, the inner hole laser cladding head anti-collision device of the invention comprises: the device comprises an inner hole laser cladding head 1, an inductive proximity sensor 3, a switching power supply 4, 220V alternating current 5, a programmable logic controller 6, a first lead 7, a second lead 6, a third lead 9, a fourth lead 10, a fifth lead 11, a sixth lead 12, a seventh lead 13, an eighth lead 14 and a ninth lead 15.
The inductive proximity sensor 3 is integrally installed on the inner hole laser cladding head 1, and the surface of the detection head of the inductive proximity sensor 3 is horizontally flush with the cladding output surface of the inner hole laser cladding head 1, so that the actual detection distance of the inductive proximity sensor 3 is equal to the distance between the inner hole laser cladding head 1 and the surface of a workpiece.
The switching power supply 4 provides 24V output voltage for the device, 220V alternating current provides 220V input voltage for a power switch of the device, the 220V alternating current provides power for the programmable logic controller, the first lead is connected with a 0V terminal of the switching power supply, the second lead is connected with a 24V terminal of the switching power supply, the third lead is connected with an input public end of the programmable logic controller, the fourth lead is connected with an output public end of the programmable logic controller, the fifth lead is connected with a detection signal input terminal of the programmable logic controller, the sixth lead is connected with an AC220 live wire, the seventh lead is connected with an AC220V zero wire, the eighth lead is connected with an L terminal of the programmable logic controller live wire, and the ninth lead is connected with a programmable logic controller zero wire N.
The inductive proximity sensor 3 outputs different detection voltage signals according to different detection distances, and preferably can set a detection response distance, namely a false collision prevention reminding distance, of the inductive proximity sensor 3, when the inductive proximity sensor 3 detects that the distance from the surface of the workpiece is within the detection response distance, the distance from the inner hole laser cladding head 1 to the surface of the workpiece is in a distance range in which false collision is possible, the inductive proximity sensor 3 generates and outputs a sensing signal corresponding to the distance to the programmable logic controller, the programmable logic controller automatically controls to send a false collision prevention alarm signal based on a preset control program, and similarly, when the inductive proximity sensor 3 detects that the distance from the surface of the workpiece is out of the detection response distance, the distance from the inner hole laser cladding head 1 to the surface of the workpiece is in a safe distance range in which false collision is not basically caused, the inductive proximity sensor 3 generates and outputs a sensing signal corresponding to the distance to the programmable logic controller, and the programmable logic controller operates normally without outputting an anti-false collision alarm signal.
Preferably, the inductive proximity sensor 3 is an NPN-type inductive sensor, and when the distance between the inductive proximity sensor and the surface of the workpiece is detected to be within the detection response distance, a detection voltage signal of 0V is generated and sent to the programmable logic controller 6, and then the programmable logic controller triggers generation of an alarm signal.
Preferably, the programmable logic controller is a PLC of model number DVP40EH00T 3.
As shown in fig. 1, 2 and 3, the inner hole laser cladding head anti-collision device is realized based on the system shown in fig. 1, 2 and 3, and the method specifically comprises the following steps:
step one, the inductive proximity sensor 3 and the inner hole laser cladding head 1 are vertically and horizontally arranged downwards, so that the distance detected by the inductive proximity sensor 1 is equal to the possible mistaken collision distance between the inner hole laser cladding head 1 and a workpiece.
And step two, connecting a first lead 7 (a blue lead) of the inductive proximity sensor 3 with a 0V terminal of the switching power supply 4, connecting a second lead 8 (a brown lead) of the inductive proximity sensor 3 with a 24V terminal of the switching power supply 4, and connecting a fifth lead 11 (a black detection signal output line) of the inductive proximity sensor 3 with a signal input terminal X10 of the programmable logic controller 6.
And step three, connecting a third lead 9 (24V terminal) of the switching power supply 4 with an input common terminal S/S of the programmable logic controller 6, and connecting a fourth lead 10 (0V terminal) of the switching power supply 4 with an output common terminal C0 of the programmable logic controller 6.
Step four, connecting the L live wire of the 220V alternating current 5 (AC) with the L input of the switching power supply 4 through a sixth lead 12, and connecting the L live wire of the 220V alternating current 5 (AC) with the L input of the programmable logic controller 6 through an eighth lead 14; the N zero line of the 220V alternating current 5 (AC) is connected with the N input of the switch power supply 4 through a seventh lead 13, and the N zero line of the 220V alternating current 5 (AC) is connected with the N input of the programmable logic controller 6 through a ninth lead 15. When 220V alternating current 5 (AC) is switched on, the switching power supply 4 and the programmable logic controller 6 both obtain power supply input and work cooperatively.
And fifthly, setting a detection early warning distance in the inductive proximity sensor, when the inductive proximity sensor detects that the distance between the inductive proximity sensor and the surface of the workpiece to be clad is within the detection early warning distance, generating and outputting a non-safety distance detection signal to the programmable logic controller by the inductive proximity sensor, automatically generating a false collision prevention alarm signal when the programmable logic controller receives the non-safety distance detection signal, when the inductive proximity sensor detects that the distance between the inductive proximity sensor and the surface of the workpiece to be clad is beyond the detection response distance, generating and outputting a safety distance detection signal to the programmable logic controller by the inductive proximity sensor, and not generating the false collision prevention alarm signal when the programmable logic controller receives the safety distance detection signal.
Further, according to the method for preventing the inner hole laser cladding head from colliding, in the first step, the distance detected by the inductive proximity sensor 3 is the distance from the inner hole laser cladding head 1 to the workpiece, when the distance detected by the inductive proximity sensor 3 to the workpiece is the detection response distance, the output terminal of the inductive proximity sensor 3 sends a detection signal to the programmable logic controller 6 through the fifth lead 11 under the condition that mechanical contact is not performed.
Further according to the inner hole laser cladding head anti-collision method, in the second step, the inductive proximity sensor 3 obtains 24V working voltage through the first lead 7 and the second lead 8, the fifth lead 11 outputs 0V to 6V sensing signals to the input terminal X10 of the programmable logic controller 6 according to the selected sensor NPN output type when the inductive proximity sensor 3 reaches the detection response distance, and then the programmable logic controller 6 gives out early warning control signals in response.
Further, according to the method for preventing the inner hole laser cladding head from mistakenly colliding, in the third step, the third lead 9 of the switching power supply 4 provides 24V working voltage for the input common end S/S of the programmable logic controller 6, the input end of the programmable logic controller 6 is in a leakage connection method, when the inductive proximity sensor 3 connected with the X10 of the programmable logic controller 6 outputs a detection voltage signal, the X10 is connected, the normally open point X10 of the input end of the programmable logic controller is closed, according to the programming of an equipment control program, the X10 is closed, the automatic operation of the equipment can be controlled, an alarm can be given out, the inner hole laser cladding head is prevented from being continuously operated to cause mistaken colliding, an operator is prompted that the distance between the inner hole laser cladding head and the workpiece reaches an alarm, the position of the cladding integrated head is moved, and the workpiece is prevented from being mistakenly collided by the cladding.
Further according to the device and method for preventing the inner hole laser cladding head from colliding, in the fourth step, 220V alternating current 5 provides input voltage for the switching power supply, so that the switching power supply 4 obtains two paths of 24V direct current voltages, one path of 24V direct current voltage provides working voltage for the inductive proximity sensor 3, the other path of 24V direct current voltage provides 24V voltage for the input common end S/S of the programmable logic controller 6, the input end is a leakage connection method, the inductive proximity sensor 3 is an NPN type, after the inductive proximity sensor 3 detects the detection distance of the response range, the fifth wire 11 outputs an OV detection voltage signal, the voltage connected to the common end S/S of the programmable logic controller 6 is 24V, a loop is formed between the voltage and the OV voltage of the fifth wire connected to the input terminal X10 of the programmable logic controller 6, when the inductive proximity sensor is far away from the workpiece and is larger than the detection response distance, the normally open point of the programmable logic controller 6 is not closed, the program in the programmable logic controller does not stop running and alarm output, and only the scanning running of the program is normally carried out.
Application examples
The technique of the present invention is specifically applied to a metal inner hole workpiece as an example.
When the method for preventing the inner hole laser cladding head from mistakenly colliding is applied to an inner hole workpiece with a metal inner wall surface, the method specifically comprises the following steps:
integrating an inductive proximity sensor on an inner hole laser cladding head, wherein a detection head of the inductive proximity sensor is horizontally flush with the inner hole laser cladding head;
step two, respectively connecting a 220V alternating current live wire and a zero wire to an L terminal and an N terminal of a switching power supply and the L terminal and the N terminal of a programmable logic controller;
step three, respectively connecting two power input lines of three lines of the inductive proximity sensor with 24V and 0V of a switching power supply, and connecting the other detection signal output line with a signal input terminal of a programmable logic controller;
and step four, connecting 24V of the switching power supply with an input common end S/S of the programmable logic controller, and connecting 0V of the switching power supply with an output common end C0 of the programmable logic controller. When the inductive proximity sensor detects the metal surface of the inner hole wall of the workpiece, a signal is output to the input end of the programmable logic controller, the input end of the programmable logic controller responds after receiving the signal, the normally open node of the internal program is closed, the alarm program is conducted, the operation program is stopped, and the inner hole wall of the workpiece is prevented from being collided by mistake.
Further according to the method for preventing the inner bore laser cladding integrated head from colliding, in the first step, the inductive proximity sensor is arranged outside the inner bore laser cladding head, a detection head of the inductive proximity sensor is horizontally aligned with a cladding output surface of the inner bore laser cladding head, and a detection response distance and a switching frequency of the inductive proximity sensor can be selected according to different requirements.
Further according to the method for preventing the inner hole laser cladding integrated head from colliding, in the second step, 220V alternating current provides input voltage 220V for the switching power supply, voltage transformation is performed inside the switching power supply, two paths of output direct current voltages of 24V and 0V are output, and 220V alternating current voltage provides input working power supply for the programmable logic controller.
Further according to the method for preventing the inner hole laser cladding integrated head from colliding, the inductive proximity sensor in the third step is a three-wire NPN proximity sensor. The brown line is connected with 24V of the switching power supply, the blue line is connected with 0V of the switching power supply, and the black line is connected with X0 of the output terminal of the programmable logic controller.
In conclusion, the device and the method for preventing the inner hole laser cladding head from mistakenly colliding solve the problems of cladding head damage caused by the mistaken collision of the inner hole laser cladding head, visual inspection time waste caused by the worry of the mistaken collision when an operator moves in the cladding integrated head, and misoperation caused by inaccurate visual inspection of the inner hole depth, save time, improve working efficiency, avoid the mistaken collision and damage of the inner hole laser cladding head, and improve the service life of the inner hole laser cladding head, the invention adds the economical and cheap inductive proximity sensor only under the condition that the hardware of a control system is not changed, the sensor has no mechanical contact and is not easy to damage during detection, has small abrasion error and is not influenced by the surrounding working environment, can continuously work in a severe industrial field, plays a normal role, has high detection precision and quick reaction frequency, and is suitable for the detection of a quick moving object, the method is suitable for detecting the distance between the inner hole laser cladding head and the workpiece, has low cost and large effect, solves a series of economic losses caused by frequent false collision of the inner hole laser cladding head, can be widely applied to the false collision prevention function of the inner hole laser cladding head, has the advantages of accurate detection, quick response and prevention of accidents, can also be used for other processing modes of internal control, and has wide application range.
The above description is only for the preferred embodiment of the present invention, and the technical solution of the present invention is not limited thereto, and any known modifications made by those skilled in the art based on the main technical idea of the present invention belong to the technical scope of the present invention, and the specific protection scope of the present invention is subject to the description of the claims.
Claims (10)
1. The utility model provides a hole laser cladding head prevents mistake and hits device which characterized in that includes: the device comprises an inner hole laser cladding head (1), an inductive proximity sensor (3), a switching power supply (4), a programmable logic controller (6) and a plurality of connecting wires; the inductive proximity sensor (3) is arranged on the inner hole laser cladding head (1), and the surface of a detection head of the inductive proximity sensor (3) is horizontally flush with the cladding output surface of the inner hole laser cladding head (1), so that the inductive detection distance of the inductive proximity sensor (3) is equal to the distance between the inner hole laser cladding head (1) and the surface of a workpiece to be clad; the switch power supply (4) is connected with the inductive proximity sensor (3) and the programmable logic controller (6) through leads, and the inductive proximity sensor (3) is connected with the programmable logic controller (6); the programmable logic controller (6) generates an anti-collision signal based on the detection signal of the inductive proximity sensor (3).
2. The inner hole laser cladding head anti-collision device according to claim 1, wherein a detection early warning distance is arranged in the inductive proximity sensor (3), when the inductive proximity sensor (3) detects that the distance between the inductive proximity sensor and the surface of the workpiece to be clad is within the detection early warning distance, the inductive proximity sensor (3) generates and outputs a non-safety distance detection signal to the programmable logic controller, the programmable logic controller automatically generates a false collision prevention alarm signal when receiving the non-safety distance detection signal, when the inductive proximity sensor (3) detects that the distance between the inductive proximity sensor and the surface of the workpiece to be clad is beyond the detection response distance, the inductive proximity sensor (3) generates and outputs a safety distance detection signal to the programmable logic controller, and the programmable logic controller does not generate a false collision prevention alarm signal when receiving the safe distance detection signal.
3. The inner hole laser cladding head anti-collision device according to claim 1 or 2, wherein the switching power supply (4) comprises a mains supply input end, a first direct current voltage output end and a second direct current voltage output end, the mains supply input end is connected to 220V alternating current, the first direct current voltage output end is connected to the inductive proximity sensor (3) to provide working voltage for the inductive proximity sensor (3), and the second direct current voltage output end is connected to the programmable logic controller to provide working voltage for the programmable logic controller.
4. The inner hole laser cladding head anti-collision device according to claim 3, wherein the inductive proximity sensor (3) comprises a main power input end and a detection signal output end, the main power input end is connected to the first direct current voltage output end of the switching power supply (4), and the detection signal output end is connected to the programmable logic controller (6).
5. The inner hole laser cladding head anti-collision device according to claim 4, wherein the programmable logic controller (6) comprises an alternating current power supply input end, a direct current voltage input end and a detection signal input end, the alternating current power supply input end is connected to 220V alternating current, the direct current voltage input end is connected to a second direct current voltage output end of the switching power supply (4), and the detection signal input end is connected to a detection signal output end of the inductive proximity sensor (3).
6. The inner hole laser cladding head anti-collision device according to any one of claims 3 to 5, wherein the inductive proximity sensor is an NPN inductive sensor, and when the inductive proximity sensor detects that the distance between the inductive proximity sensor and the surface of the workpiece to be clad is within the detection early warning distance, the non-safety distance detection signal generated and output by the inductive proximity sensor (3) is a 0V detection voltage signal.
7. The inner hole laser cladding head anti-collision device of any one of claims 3 to 5, wherein the programmable logic controller is a PLC with model number DVP40EH00T 3.
8. The inner hole laser cladding head anti-collision device according to any one of claims 3 to 7, wherein the first direct-current voltage output end and the second direct-current voltage output end of the switching power supply (4) both output 24V direct-current voltage.
9. An inner hole laser cladding head anti-collision method based on the inner hole laser cladding head anti-collision device of any one of claims 1 to 8, wherein the method comprises the following steps:
firstly, an inductive proximity sensor and an inner hole laser cladding head are vertically and downwards flush mounted, so that the detection distance of the inductive proximity sensor is equal to the distance between the inner hole laser cladding head and a workpiece to be clad;
connecting a total power supply input end of the inductive proximity sensor with a first direct-current voltage output end of the switching power supply, and connecting a detection signal output end of the inductive proximity sensor with a detection signal input end of the programmable logic controller;
connecting a second direct-current voltage output end of the switching power supply with a direct-current voltage input end of the programmable logic controller;
step four, connecting the 220V alternating current with a mains supply input end of a switch power supply, and connecting the 220V alternating current with an alternating current power supply input end of a programmable logic controller;
and fifthly, setting a detection early warning distance in the inductive proximity sensor, when the inductive proximity sensor detects that the distance between the inductive proximity sensor and the surface of the workpiece to be clad is within the detection early warning distance, generating and outputting a non-safety distance detection signal to the programmable logic controller by the inductive proximity sensor, automatically generating a false collision prevention alarm signal when the programmable logic controller receives the non-safety distance detection signal, when the inductive proximity sensor detects that the distance between the inductive proximity sensor and the surface of the workpiece to be clad is beyond the detection response distance, generating and outputting a safety distance detection signal to the programmable logic controller by the inductive proximity sensor, and not generating the false collision prevention alarm signal when the programmable logic controller receives the safety distance detection signal.
10. The inner hole laser cladding head anti-collision method according to claim 9, wherein the inductive proximity sensor is an NPN-type inductive sensor, and when the distance between the inductive proximity sensor and the surface of the workpiece to be clad is detected to be within the detection early warning distance, the non-safety distance detection signal generated and output by the inductive proximity sensor (3) is a 0V detection voltage signal; the programmable logic controller is a PLC with the model number of DVP40EH00T3, and when the programmable logic controller receives the 0V detection voltage signal, an anti-collision alarm signal is generated based on an internal control program of the programmable logic controller.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115194183A (en) * | 2022-07-20 | 2022-10-18 | 西安增材制造国家研究院有限公司 | Intelligent anti-collision system of laser cladding head for additive manufacturing equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19960834A1 (en) * | 1999-12-16 | 2001-07-05 | Agie Sa | Collision detection method for numerically-controlled machine tool drive system uses comparison of position values for movable machine component obtained directly and via positioning drive train |
| CN204825050U (en) * | 2015-07-23 | 2015-12-02 | 南京中科煜宸激光技术有限公司 | Laser cladding head for hole |
| CN208437796U (en) * | 2018-07-09 | 2019-01-29 | 中国石油大学(华东) | Device of the control tungsten electrode to workpiece distance in a kind of automatic TIG welding |
| CN208744532U (en) * | 2018-09-10 | 2019-04-16 | 德淮半导体有限公司 | Chemical mechanical polishing device |
| CN111174752A (en) * | 2019-08-20 | 2020-05-19 | 西安必盛激光科技有限公司 | Laser head real-time online anti-collision monitoring device and monitoring method for inner hole cladding |
-
2020
- 2020-07-28 CN CN202010739772.2A patent/CN111926323A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19960834A1 (en) * | 1999-12-16 | 2001-07-05 | Agie Sa | Collision detection method for numerically-controlled machine tool drive system uses comparison of position values for movable machine component obtained directly and via positioning drive train |
| CN204825050U (en) * | 2015-07-23 | 2015-12-02 | 南京中科煜宸激光技术有限公司 | Laser cladding head for hole |
| CN208437796U (en) * | 2018-07-09 | 2019-01-29 | 中国石油大学(华东) | Device of the control tungsten electrode to workpiece distance in a kind of automatic TIG welding |
| CN208744532U (en) * | 2018-09-10 | 2019-04-16 | 德淮半导体有限公司 | Chemical mechanical polishing device |
| CN111174752A (en) * | 2019-08-20 | 2020-05-19 | 西安必盛激光科技有限公司 | Laser head real-time online anti-collision monitoring device and monitoring method for inner hole cladding |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115194183A (en) * | 2022-07-20 | 2022-10-18 | 西安增材制造国家研究院有限公司 | Intelligent anti-collision system of laser cladding head for additive manufacturing equipment |
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