Carrying and locating device of LED lamp filament column

Abstract

The invention discloses a carrying and locating device of an LED lamp filament column. The carrying and locating device comprises a carrying mechanism and a welding and locating mechanism; the carrying mechanism comprises a carrying arm and a motor capable of driving the carrying arm to rotate; the carrying arm comprises a connecting piece and a carrying head; one end of the connecting piece is connected with the motor; the other end of the connecting piece is connected with the carrying head; a notch is formed in the carrying head; a cylindrical face is arranged on the notch wall of the notch; the cylindrical face and the LED lamp filament column have the same diameter; negative pressure through holes are formed in the cylindrical face; the negative pressure through holes communicates with an inner cavity of the carrying head, so that a negative pressure cavity is formed; the negative pressure cavity is connected with a negative pressure device; and the welding and locating mechanismcomprises two electrode columns, a carrying head locating block and a carrying head pressing block. According to the carrying and locating device of the LED lamp filament column, the LED lamp filamentcolumn can not rotate or slide relatively in the carrying process, and the LED lamp filament column can be accurately located at a welding point, so that the LED lamp filament column is welded smoothly.

Description

technical field [0001] The invention relates to a conveying device, in particular to a conveying and positioning device for an LED filament column. Background technique [0002] As a decorative lighting lamp, LED filament has been more and more loved by people. Unlike ordinary incandescent lamps, LED filament is welded to the glass column in the LED filament. The advantages of large area and high color rendering index can bring people a new light vision. Among them, in the manufacturing process of the LED filament, the LED filament column needs to be welded on the glass column, and during the welding process, the LED filament column has yin and yang surfaces respectively (the negative surface does not emit light, and the positive surface emits light). For the luminous effect, when welding, it is necessary to weld the positive side on the outside and the negative side on the inside. [0003] In order to meet the above welding requirements, on the one hand, in the entire wel...

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Problems solved by technology

[0003] In order to meet the above welding requirements, on the one hand, in the entire welding process of the LED filament column, including from the discharge station to the detection station to the rotary handling station and then to the welding station, the LED filament column at each station It is necessary to show the set posture. If any of the above-mentioned links is wrong, the posture of the LED filament column at the welding station will not meet the standard, which will lead to unqualified welding products. Therefore, in the process of handling the LED filament column, it is necessary to maintain Its posture is fixed, that is, in the process of picking, transporting and discharging, the LED filament column can not rotate, slide or other uncontrollable situations relative to the transport mechanism.

In actual handling, in order to meet the handling requirements, it is usually carried out by clamping or vacuum suction cup adsorption, but because the LED filament column is cylindrical, it is not easy to be absorbed by the vacuum suction cup; at the same time, due to the small volume of the LED filament column , and it is easy to break and break, so it is difficult to transport by clamping

[0004] On the other hand, it is also necessary to accurately transport the LED filament column to the set welding point. Only when the welding parts at both ends of the LED filament column are accurately positioned on the welding point, can the welding machine be able to perform the downward movement. The two ends of the filament column are in contact for welding tasks, and when the welding parts at both ends of the LED filament column deviate from the welding point or are located above the welding point, it will lead to the failure of the welding task

In order to meet the high-precision positioning requirements, high-precision driving mechanisms are usually used in actual handling, such as high-precision motors, but the high-precision driving mechanisms are expensive, resulting in greatly increased manufacturing

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