KR200262970Y1 - Mounting Head of Surface Mounting Device - Google Patents

Abstract

The present invention is a surface sealer for mounting semiconductor devices and various electronic components on a printed circuit board in a surface mounter for mounting surface-mounted components including various chips on a printed circuit board (PCB). It relates to the mounting head of the organ. The present invention provides a mounting head of a surface mounter for mounting various chips on a printed circuit board, the frame 10 and a plurality of subs provided to fix the nozzle 22 on one side of the frame 10. A nozzle shaft 16 having a plate 12, a nozzle 22 installed through the plurality of sub-plates 12, and an end of the nozzle shaft 16, the nozzle 22 being connected to the nozzle shaft 16; A rotating motor 30 connected to be rotated 360 degrees, an encoder bracket 24 installed on one side of the frame 10, and a nozzle shaft fixed to the encoder bracket and operated by the rotating motor 30 ( It is characterized by consisting of the encoder 32 connected to be installed so as to detect the amount of rotation of 16).

Description

Mounting Head of Surface Mounting Device

The present invention is a surface sealer for mounting semiconductor devices and various electronic components on a printed circuit board in a surface mounter for mounting surface-mounted components including various chips on a printed circuit board (PCB). The present invention relates to a long-term mounting head, and more particularly, to a mounting head of a surface mounter in which an encoder is separately installed so as to improve the accuracy of an R axis when mounting components on a printed circuit board.

In recent years in the development of electrical and electronic products, the trend has been to increase the density, miniaturization, and diversification of electronic components, and the development thereof is becoming more and more intense.

In particular, Surface Mounting Technology (SMT) using surface mounters for assembly production of printed circuit boards (PCBs) used in electrical and electronic components is being accelerated.

Surface Mounting Device (SMD) is a core equipment of surface mount assembly equipment that mounts electronic components on printed circuit board and transfers various surface mount components from parts supply to mounting position of printed circuit board. The equipment is then mounted on a printed circuit board.

Types of surface mounters are classified into high-speed machines and general-purpose machines according to their functions. The high-speed machines are configured to assemble many parts in a short time, so the mounting speed is high, which makes them suitable for mass production. Since the general purpose machine is configured to be suitable for mounting of various parts, the mounting precision is high and the mounting of various parts is possible, which has advantages of being suitable for small quantity production of various types, while having a low mounting speed and having a disadvantage of low productivity.

The surface mounter is mounted from a feeder part for supplying mounting parts (hereinafter referred to as a tape feeder), an X-Y gantry part for determining a working position, a conveyor part for conveying a printed circuit board to be worked on, and a tape feeder. It consists of a head part etc. which pick up components one by one and mount them on a printed circuit board.

In general, the surface mounter refers to a device that mounts various electronic components including chips on a printed circuit board (PCB) and is also called a MOUNTER.

Looking at the structure of the above-mentioned mounter in more detail can be classified into several categories.

First, a base assay, a conveyor unit installed on an upper portion of the base assay and a printed circuit board for transporting a printed circuit board, and various chips or surface mount components for mounting components on a printed circuit board carried by the conveyor unit. Recognizing and correcting parts so that the feeder unit for supplying the power supply unit, a mounting head assay for mounting each device supplied by the feeder unit, and various devices mounted by the mounting head assay can be correctly mounted. The vision unit, the vision unit and the mounting head assay is installed is composed of an XY gantry portion for positioning by the table, and other parts.

The mounting head assay is composed of a suction nozzle that directly adsorbs a part, a nozzle chuck for fixing the adsorbed part, a nozzle exchanger for exchanging the nozzle, and the like.

At this time, the head of the mounter is rotated 360 degrees to move along the coordinate axis of the R-axis to adjust the rotation angle of the components adsorbed by the nozzle, and the Z-axis that moves up and down to adsorb the components by the nozzle.

In addition, the R-axis rotated 360 degrees is driven by the rotary motor, the vertical movement to the Z-axis is installed to move by the pinion and the rack rotated by the drive motor.

However, the head of the conventional mounter is equipped with a rotary motor and an encoder that operate to move in the R-axis, so the structure is complicated, it is difficult to precisely control the R-axis.

In addition, since the precise control of the R-axis is not made, when mounting the mounting parts, there is a problem that the precision is lowered, resulting in inferior mountability.

The present invention has been made to solve such a problem in the prior art, the object of the present invention is to provide a mounting head of the surface mounter for improving the accuracy of the R-axis by separating the rotary motor and the encoder.

1 is a perspective view showing the structure of the surface mounter of the present invention

Figure 2 is a perspective view showing the mounting head of the surface mounter of the present invention

Figure 3 is a perspective view showing the rear portion of the mounting head of the surface mounter of the present invention

<Description of the code | symbol about the principal part of drawing>

10frame 12: subplate

14 lower plate 16 nozzle shaft

18: shaft cover 20,21: belt

22: nozzle 24: bracket

26: drive motor 28: motor bracket

30: rotary motor 32: encoder

100: frame assay 101: mounting head

102: Base Assay 104: Conveyor System

106: Gantry Assay 108: Mounting Head Assay

109: X axis frame

In order to achieve the above object, the present invention is a mounting head of a surface mounter for mounting various chips on a printed circuit board, the mounting head of the surface mounter is fixed to the frame and the nozzle on one side of the frame A nozzle shaft having a plurality of sub-plates installed for the purpose, a nozzle installed through the plurality of sub-plates, and a rotating motor installed at an end of the nozzle shaft to connect the nozzle to rotate 360 degrees; Mounting of the surface mounter comprising an encoder bracket installed on one side of the frame, and an encoder fixed to the encoder bracket and connected to detect the amount of rotation of the nozzle shaft operated by the rotary motor. To provide the head.

(Example)

Hereinafter, with reference to the accompanying drawings will be described the mounting head of the surface mounter of the present invention.

1 is a perspective view showing the structure of the surface mounter of the present invention, Figure 2 is a perspective view showing the mounting head of the surface mounter of the present invention, Figure 3 is a perspective view showing the rear of the mounting head of the surface mounter of the present invention. to be.

First, in the mounting head 100 of the surface mounter for mounting various chips on a printed circuit board, the mounting head 100 of the surface mounter is formed on the frame 10 and one side of the frame 10. A nozzle shaft (16) having a plurality of subplates (12) provided to fix the nozzle (22), a nozzle (22) installed through the plurality of subplates (12), and the nozzle shaft ( 16 is installed at the end of the rotary motor 30 is connected to rotate the nozzle 22 360 degrees, the encoder bracket 24 is provided on one side of the frame 10, and the encoder bracket 24 It is fixed to and is configured to be connected to the encoder 32 installed so as to detect the amount of rotation of the nozzle shaft 16 is operated by the rotary motor 30.

First, referring to FIG. 1, a frame assay 100 for supporting a surface mounter is installed, and a base assay 102 is installed on a top of the frame assay 100 to serve as a base. On top of the base assay 102 is a conveyor system 104 for transferring a printed circuit board.

In addition, in the upper direction of the conveyor system 104, an XY gantry 106 is provided which moves back, front, left, and right to mount electronic components on the upper part of the printed circuit board transferred by the conveyor system 104. The XY gantry portion is composed of respective gantry frames 109 supporting the X and Y axes.

In the gantry frame 109 configured as described above, a mounting head assay 108 for mounting a component on a printed circuit board conveyed by the conveyor system 104 is installed to be movable.

At this time, the mounting head 101 is provided with a mounting head 101, and the mounting head 101 is provided with a nozzle 22 for adsorbing components.

Referring to FIGS. 2 and 3, the present invention is described, and the frame 10 is placed in a vertical direction, and a plurality of sub-plates 12 are arranged in parallel on the left side at a predetermined distance. A lower plate 14 is provided at a lower portion of the sub plate 12 at a predetermined distance, and each of the sub plates 12 has a nozzle shaft 16 having a plurality of nozzles 22 therethrough. A plurality of nozzles 22 are provided below the lower plate 14 so as to adsorb the mounting parts.

In addition, a rotary motor 30 is connected to the upper end of the nozzle shaft 16 so as to rotate the nozzle 22 on the R axis, and is installed on the motor bracket 28, and the motor bracket 28 is the frame. It is provided in the upper end part of (10). At this time, a driving motor 26 for moving the plurality of nozzles 22 up and down is installed at the right side of the frame 10, and the driving motor 26 is installed corresponding to the plurality of nozzles 22, respectively. As a result, each nozzle 22 is operated individually.

Therefore, the nozzle 22 is moved up and down by the drive motor 26 to suck the mounting parts.

Then, when the printed circuit board is fixed to the correct working position by the conveyor system 104, the mounting head 10 moves to the left and right along the X axis frame 109 of the gantry assay 106 and is attracted to the nozzle 22. The mounted parts are mounted on a printed circuit board.

The mounting head of the surface mounter of the present invention as described above enables accurate position control by an encoder installed separately when the printed circuit board arrives at the working position and mounts various components adsorbed by the nozzle.

In addition, since the drive motor and the encoder are installed separately, there is an advantage that the structure is simplified.

The mounting head of the surface mounter of the present invention as described above has the effect of accurately controlling the position of the components adsorbed by the nozzle when mounting the printed circuit board of the electronic component, thereby improving the reliability of the product In addition, since the structure of the mounting head is simplified, the durability of the device is improved.

Claims (1)

In the mounting head of the surface mounter for mounting various chips on a printed circuit board, The frame 10, A plurality of sub plates 12 installed to fix the plurality of nozzles 22 to one side of the frame 10, A plurality of nozzle shafts 16 having a plurality of nozzles 22 installed through the plurality of sub-plates 12, One rotating motor 30 is installed on the motor bracket 28 installed on the upper portion of the frame 10 and connected to rotate the nozzle 22 in the R axis. An encoder bracket 24 installed on the frame 10, A drive motor 26 for operating the plurality of nozzles 22 up and down, It is fixed to the encoder bracket, consisting of an encoder 32 installed to detect the amount of rotation of the nozzle shaft 16 operated by the rotary motor 30, Mounting head of the surface mounter, characterized in that the rotary motor 30 and the encoder 32 are separated and installed to increase the accuracy of the R-axis.