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, in particular to a placement head, in particular to an expandable placement head of a placement machine. Background technique [0002] Mounter is an electromechanical integration equipment that requires high precision, high speed, and high reliability. It belongs to a high-paying technology-intensive industry. Large-scale electronic product production lines, but not widely used in small businesses or individuals. In recent years, economical and 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 an economical simple placement machine The core of the part, the placement head is used to realize the feed in the vertical direction...

AI Technical Summary

Problems solved by technology

[0003] At present, the commonly used placement head generally adopts the following methods for vertical feeding: 1) The gear / rack structure transmission method is relatively traditional, and the actuator is simple to implement, but this method has a great impact on the movement of the placement 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 this form is complex 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. This adjustment method not only feeds in the vertical direction but also affects the placement 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 placement accuracy; Coaxial, which increases the difficulty of installation and also reduces the placement accuracy

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