Precise positioning mechanism for driving tray

Abstract

The invention relates to the field of mechanical transmission equipment, in particular to a precise positioning mechanism for driving a tray. The precise positioning mechanism comprises a conveying base, a cam transmission assembly, a lifting assembly and a traction assembly. A horizontal sliding rail is arranged on the top of the conveying base. The tray capable of horizontally sliding along the horizontal sliding rail is arranged on the horizontal sliding rail. A first horizontal sliding groove is formed in the left side of the tray. A second horizontal sliding groove is formed in the right side of the tray. Clamping positioning columns are arranged on the inner bottom face of the second horizontal sliding groove. Grabbing positioning columns are arranged above the clamping positioning columns. The lifting assembly comprises a lifting main plate, a horizontal guide rail and multiple positioning plates. The traction assembly comprises an electric power push rod, a traction main plate and a traction pin plate. The traction assembly is used for driving the tray to move horizontally, and the lifting assembly is used for pressing the tray, so that the tray is positioned precisely. The traction assembly and the lifting assembly are both driven by the cam transmission assembly. No electronic control elements are required, no connection with any complex circuit is required, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to the field of mechanical transmission equipment, in particular to an accurate positioning mechanism for driving a tray. Background technique [0002] In automated processing or assembly equipment, in order to meet the needs of mass production, most of the automated equipment can realize assembly line operations. In the intelligent assembly platform, it is necessary to set the moving position of each station, and the corresponding settings for each station There are pallets, which are used to support workpieces, and each pallet can correspond to a station. During the assembly line operation, the pallet is driven by the transmission mechanism, and the transmission mechanism moves the pallet from the first station to the last station, thus completing the automatic assembly. [0003] The conveying mechanism is used for conveying pallets, and can also be used for pressing pallets. There are two kinds of conveying mechanisms in the p...

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Problems solved by technology

[0003] The conveying mechanism is used for conveying pallets, and can also be used for pressing pallets. There are two kinds of conveying mechanisms in the prior art, one is a conveying mechanism driven by air pressure, which has simple structure, flexible and convenient installation, and low purchase cost. The driving force is small, and the precision of pneumatic driving is not high, and the movement speed is slow; the other is the transmission mechanism driven by the motor. This structure has greater strength, easy installation, high flexibility, and faster movement speed. However, when the movement speed is faster, the error is larger, which affects the movement error, especially when the movement is stiff and the impact vibration is large when stopping. In addition, the volume of this structure is large, resulting in a large overall volume

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