Spot welding system of air-conditioner backboard robot

A robot and robot body technology, applied in welding power supply, welding equipment, resistance welding equipment, etc., can solve problems such as hardware errors and unknown system defect damage, accidents, inconsistent spot welding positions, etc., to meet production cycle requirements and improve The effect of safety and labor intensity reduction

Active Publication Date: 2015-09-02

SHANGHAI XINSHEN METALWORK

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AI-Extracted Technical Summary

Problems solved by technology

[0003] At present, in the field of air-conditioning production, the spot welding of the air-conditioning backplane has basically realized the full automation of robots. With its precise and intelligent operation and management, industrial robots have avoided the inconsistent spot welding positions and missing welding deviations caused by manual welding. Such shortcomings as unstable quality and low efficiency;

[0004] As a high-speed operating device with multiple degrees of freedom, an industrial robot ha...

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Abstract

The invention discloses a spot welding system of an air-conditioner backboard robot. The spot welding system comprises control equipment, a welding robot system, a tooling platform and an operating area, wherein the control equipment comprises a system PLC (Programmable Logic Controller) control cabinet and a touch screen connected with the system PLC control cabinet, and the touch screen is used for monitoring a system state; the welding robot system is connected with the system PLC control cabinet and comprises a robot body and an electrode holder arranged on the robot body; the tooling platform is connected with the system PLC control cabinet, and the robot body conveys the electrode holder to the tooling platform and performs spot welding to a work-piece on the tooling platform; the operating area comprises a guard fence and a safety door, the robot body and the electrode holder are both placed in the operating area, the system PLC control cabinet monitors the state of the safety door, the system PLC control cabinet stops the operation of the welding the robot system and the tooling platform after the safety door is opened. The spot welding system provided by the invention has the advantages that the system safety can be improved by implementing monitoring, control and commissioning to the spot welding system of the air-conditioner backboard robot, under the precondition of meeting the requirements of production takts.

Application Domain

Welding monitoring devicesMetal working apparatus

Technology Topic

System safetyRobotic systems +8

Image

Examples

Experimental program(1)

Example Embodiment

[0031] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

[0032] like figure 1 As shown, a robot spot welding system for an air-conditioning backplane includes: a control device, which includes a system PLC control cabinet 9 and a touch screen 91 connected to the system PLC control cabinet 9, and the touch screen 91 is used to monitor the system status; the welding robot system, which Connect the system PLC control cabinet 9, which includes the robot body 1 and the welding tongs 2 installed on the robot body 1; the tooling table, which connects the system PLC control cabinet 9, and the robot body 1 transports the welding tongs 2 to the tooling platform and carry out spot welding to the workpiece on the tooling platform; operating area, this operating area includes safety fence 3 and safety door 31, described robot body 1 and welding tongs 2 are all placed in operating area, system PLC control cabinet 9 monitors In the state of the safety door 31, when the safety door 31 is opened, the system PLC control cabinet 9 immediately stops the operation of the welding robot system and the tooling platform.

[0033] The tooling platform includes: a pair of tooling fixtures located on both sides of the welding tongs 2, which are used to carry workpieces, and the pair of tooling fixtures are used alternately. The transmission and movement between the station areas, the manual feeding area is located outside the operation area, and the welding station area is located in the operation area. In this embodiment, each of the tooling fixtures includes a tooling fixture plate 5 and a screw 51 connected to the tooling fixture plate 5, and the screw mandrel 51 rotates under the control of the tooling fixture PLC control cabinet 7, so that the corresponding tooling fixture The fixture plate 5 advances to the welding station area or retreats to the manual loading area.

[0034] The tooling table also includes: a group of tooling fixture PLC control cabinets 7, each of the tooling fixtures is connected to the system PLC control cabinet 9 through the corresponding tooling fixture PLC control cabinet 7, each tooling fixture PLC control cabinet 9 are respectively used to control the transmission trajectory of the corresponding fixture and correct its positioning points in the manual loading area and welding station area.

[0035] A pair of safety gratings 4 are respectively arranged on both sides of the manual feeding area of each said fixture, and each pair of safety gratings 4 is respectively connected with the system PLC control cabinet 9; when any fixture enters the operation area, the corresponding When the safety grating 4 is enabled, when the safety grating 4 detects that an intruder enters the manual loading area where the safety grating 4 is located, the system PLC control cabinet 9 will immediately stop the operation of the welding robot system and the fixtures located there .

[0036] The tooling table also includes: a tooling fixture display 71 for monitoring the running status of each tooling fixture.

[0037] The robot system also includes: a teaching box, the first emergency stop button is set on the teaching box; a robot control cabinet 11, the robot body 1 is connected with the system PLC control cabinet 9 through the robot control cabinet 11, in this The robot control cabinet 11 is provided with a second emergency stop button.

[0038] A starting/returning device 52 is correspondingly arranged next to each of the fixtures, which is used to manually control the corresponding fixtures to enter the welding station area or return to the manual loading area.

[0039] The air-conditioning backplane robot spot welding system also includes: an alarm unit that reports to the police when an abnormality occurs in the system, and the alarm unit is correspondingly connected to the system PLC control cabinet 9; The control cabinet will also stop all operations of the robot body 1 and the tooling platform.

[0040] The air conditioner backplane robotic spot welding system further includes: a chiller 8 and an electrode dresser 6 respectively connected to the PLC control cabinet 9 of the system.

[0041] In this embodiment, the system PLC control cabinet adopts an Omron PLC control cabinet, which integrates circuit control elements such as robot input and output I/O terminal blocks, relays, and wiring terminals to realize the control of the robot body 1, welding tongs 2, Intermediate frequency inverter resistance welding controller 21, water and gas circuit, tooling fixture, touch screen 91, various operation buttons, safety grating 4, safety door 31 and other peripheral components for communication work; touch screen 91 has realized a simple password for man-machine operation, its The drawing numbers of the sheet metal parts of the back panel of the air conditioner and the working status of each part are marked on the above, and the production management, status monitoring and system maintenance work are completed.

[0042] In this embodiment, the system PLC control cabinet 9 controls the robot body 1 in any mode, only when the safety door 31 is in a locked state, can it run; Causing unnecessary collisions and injuries, the safety grating 4 responds to each other with N-segment infrared rays, and the sensitivity is extremely high.

[0043] The working principle of the present invention is: turn on the power of the system, set the parameters of the robot and the surrounding system, the operator selects any upper part of the jig plate 5 in the manual loading area, and after completion, press the start button on the corresponding start/return device 52 button, so that the fixture plate 5 advances to the welding station area under the drive of the screw mandrel 51. After the system PLC control cabinet 9 detects the in-position signal, it calls the robot program to carry out welding. After the welding is completed, a completion signal is sent, and the system PLC control cabinet 9 The tooling fixture plate 5 is called to make it return to the manual loading area. Since the tooling platform of this system is equipped with 2 stations, during this period, the operator can take advantage of the working gap of the robot body 1 to transport to another tooling fixture plate 5 to be placed. The workpiece is processed to ensure that the robot body 1 can immediately enter the processing step of the next workpiece after processing the previous workpiece, thereby ensuring the production cycle of the system.

[0044] The setting of the safety door 31 of the present invention can ensure that within the working range of the robot, the operator is prohibited from entering, and the operator and the robot are prohibited from working simultaneously in the common operation area; all operable control cabinets of the system are arranged outside the safety fence, so that the operator Minimum contact with the robot body 1 and welding tongs 2; in case of emergency, the operator can stop the system at any time through the first emergency stop button on the teaching box and the second emergency stop button on the robot control cabinet 11 , when an abnormality occurs in the welding robot system, the robot body 1 will stop working and generate an alarm signal, and relevant alarm information will be displayed on the touch screen 91 and the teaching box, so that the operator can handle it in time, which is safe and reliable; the start/return device on the tooling table 52 double ensures the safety and sensitivity of the operator's work process.

[0045] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as limiting the present invention. Various modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the above disclosure. Therefore, the protection scope of the present invention should be defined by the appended claims.

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Description & Claims & Application Information

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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Classification and recommendation of technical efficacy words

Reduce labor intensity
Meet production takt requirements

Spot welding system of air-conditioner backboard robot

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Image

Examples

Example Embodiment

PUM

Description & Claims & Application Information

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