Robot automatic welding production line of middle groove and technological method thereof

A robot welding and automatic welding technology, applied in welding equipment, welding equipment, auxiliary welding equipment, etc., can solve the problems of low welding quality, low work efficiency, high labor intensity, etc., and achieve complete and reasonable station settings and welding efficiency. Improve and improve the effect of welding quality

Active Publication Date: 2010-06-09
CHINA COAL ZHANGJIAKOU COAL MINING MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The artificial gas shielded welding method is a traditional method commonly used at present. This method is not only difficult to guarantee the welding quality, but also has low work efficiency and high labor intensity; the method of using an automatic welding machine can only be used for the straight line welds of the middle plate and the bottom plate of the middle groove. Welding can not realize the curved welding of bent plates and rail seats, and the welding quality is not high; the known single-robo...

Method used

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  • Robot automatic welding production line of middle groove and technological method thereof
  • Robot automatic welding production line of middle groove and technological method thereof
  • Robot automatic welding production line of middle groove and technological method thereof

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Effect test

Embodiment 1

[0037] from figure 1 It can be seen that the present invention designs 8 stations according to the direction of the manufacturing process of the middle tank and arranges them in a straight line, including a primary assembly station, a middle plate preheating station, a bottom welding station, a middle plate bottom plate robot welding station, and a secondary assembly station. There are 6 parts of the robot welding workstation for positioning and bending plate rail seat. The arrow indicates the direction of the workpiece logistics transfer. The workpiece transfer between each station is carried out by crane hoisting. The two workstations are independently controlled, using the double-wire digital double-pulse welding power source. The robot, C-shaped frame, positioner, double-wire elbow welding torch, and digital double-pulse welding power source of each workstation are connected to the computer control system through their own cables. , controlled by computer, can realize the ...

Embodiment 2

[0049] The difference between this embodiment and Embodiment 1 is that the bending plate rail seat robot welding workstation adopts another structural form, such as Figure 5 As shown in the figure, a set of horizontal guide rails 44 is installed on the side of the beam of the C-shaped frame 39, the robot 45 is mounted on the horizontal guide rail on the side, and can move laterally along the horizontal guide rail, and a single wire welding gun fixing frame is installed on the upper end of the frame beam 42. A single-wire elbow welding torch 40 with a contact-type welding seam starting point locating sensor installed on the head is clamped on this fixing frame, a double-wire welding gun fixing frame 46 is installed at the other end, and a head is installed with a contact The double-wire elbow welding torch 47 of the type welding seam starting point locating sensor is clamped on the fixing frame. The wire feeder 43 and the welding torch cleaning device 41 are installed on the s...

Embodiment 3

[0052] The middle groove manufacturing process of the middle groove robot automatic welding production line is:

[0053] ①One-time assembly: The shovel plate groove, the middle plate and the baffle groove are manually assembled at the one-time assembly station using the general assembly fixture of the middle groove, so that they have relatively correct positions to form components.

[0054] ②Preheating of the middle plate: transport the above components to the fixed high-efficiency flame preheating device for the middle plate at the second station, and preheat the middle plate. After the temperature is reached, the flame is automatically extinguished by the flame control system.

[0055] ③ Bottoming welding of the middle plate: When the workpiece error is large, so that the single-face contact gap between the middle plate and the groove is greater than 2mm, the preheated components are immediately transported to the positioner of the bottoming welding station and clamped. The...

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Abstract

The invention relates to the technical field of production manufacturing of a cast middle groove by a heavy-duty scraper conveyor used on coal mines, and provides a robot automatic welding production line of a middle groove and a technological method thereof. The production line designs 8 stations according to the manufacturing process flow of the middle groove, comprises 6 parts of a primary assembly station, a middle plate preheating station, a backing welding station, a middle plate and bottom plate robot welding work station, a secondary assembly station and a bending rail rest robot welding work station, and forms an integrated production line layout of the middle groove. The invention integrates and uses multiple technologies of a welding robot, double-wire welding, digital double-pulse welding power source, computer control, high-efficiency flame preheating and the like, and establishes technical measures of preheating temperature, bevel form, welding sequence, welding parameters and the like; and the welding process is controlled by a computer, thereby realizing high-efficiency automatic robot welding of the middle groove in the overall process. Compared with the traditional manual gas shielded welding, the invention obviously improves the welding quality of the middle groove and increases the welding efficiency by 3-4 times.

Description

technical field [0001] The invention relates to the technical field of production and manufacture of a middle groove cast by a heavy scraper conveyor in a coal mine, in particular to a middle groove robot automatic welding production line and a process method thereof. Background technique [0002] Casting middle trough is a key component of coal mine heavy scraper conveyor. It is assembled and welded by shovel plate trough, baffle trough, high-strength wear-resistant middle plate, bottom plate, bent plate, rail seat and other parts. The structure is relatively complex. And the welding technology requirements are high, and the welding is difficult. At present, there are three kinds of domestic well-known technological methods: artificial gas shielded welding, automatic welding special machine and single robot workstation. The artificial gas shielded welding method is a traditional method commonly used at present. This method is not only difficult to guarantee the welding qua...

Claims

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Application Information

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IPC IPC(8): B23K31/02B23K9/235B23K9/16B23K37/053B23K9/12B23K9/095
Inventor 李国平郑民会白虎曹文智单玉新韩效寿康绍光杨继武苗俊田
Owner CHINA COAL ZHANGJIAKOU COAL MINING MACHINERY
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