Expandable mounting head for chip mounter

Abstract

The invention discloses an expandable mounting head for a chip mounter. The expandable mounting head comprises a supporting seat, a guide rail seat, a cam, a speed-reducing stepping motor, a coupler and a hollow pipe, wherein the supporting seat is a U-shaped frame formed by a supporting seat rear board, supporting seat top plate and a supporting seat bottom plate, wherein the supporting seat top plate and the supporting seat bottom plate are arranged at the two ends of the supporting seat rear board; the guide rail seat is the U-shaped frame formed by a guide rail rear board, guide rail top plate and a guide rail bottom plate, wherein the guide rail top plate and the guide rail bottom plate are arranged at the two ends of the guide rail rear board; and the guide rail rear board is shorter than the supporting seat rear board. The expandable mounting head for the chip mounter is the key constituent part of an economical and simple chip mounter, adopts the cam and a spring to realize a feeding mode of the mounting head in the vertical direction, adopts one speed-reducing stepping motor and the hollow pipe device to lead the speed-reducing stepping motor be coaxial with a suction pen, improves the mounting precision and meets the requirement of small enterprises and individual consumers to the economical and simple chip mounter.

Description

Technical field [0001] The invention belongs to the field of placement machines for electronic assembly, and particularly relates to a placement head, in particular to an expandable placement machine placement head. Background technique [0002] Mounter is a mechatronic equipment that requires high precision, high speed, and high reliability. It belongs to a high-paying technology-intensive industry. At present, most of the domestic equipment is purchased from abroad and the price is high. It is mainly used in large and medium-sized enterprises and some Large-scale electronic product production lines, but not widely used in small businesses or individuals. In recent years, economical simple placement machines have appeared on the market to meet the needs of small businesses or individual users. The common economical simple placement machine is composed of X-axis, Y-axis, expandable placement head, feeding device and other components. Among them, the expandable placement head is ...

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used mounting head generally adopts the following methods for vertical feed: 1) The transmission mode of the gear / rack structure, which is relatively traditional, and the implementation of the actuator is simple, but this method has a great impact on the movement of the mounting spindle. It is difficult to improve the control accuracy; 2) Synchronous conveyor belt plus stepping motor drive structure, the control accuracy of this method is acceptable, but the structure is easily damaged and will increase the overall size; 3) Servo motor form, but the assembly of this form is complicated and precise Not high, at the same time the cost is high

[0004] The following types of structures are often used by the placement head to adjust the angle of the patch components: 1) Two stepping motors plus a synchronous belt form. The angle of the component is adjusted, but the overall volume of the structure is large, and the inertia increases due to the increase in weight, which will inevitably affect the mounting accuracy; Coaxial, which increases the difficulty of installation and also reduces the placement accuracy

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