KR960001732Y1 - Apparatus for pre-registration of electronic parts - Google Patents

Abstract

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Description

Electronic component pre-alignment device

1 is a view showing the configuration of the electronic component preliminary alignment apparatus of the present invention, (a) is a plan view, (b) is a partial side cross-sectional view.

2 is a plan view showing the configuration of a prior art electronic component preliminary alignment apparatus.

* Explanation of symbols for main parts of the drawings

20: drive unit 21: guide unit

22: alignment unit 23: drive means

24: drive pulley 26: shaft

27,28: 12th guide protrusion 29: driven pulley

30 belt 31 tensioner

32, 33: 1st, 2nd rotating plate 34, 35: 1st, 2nd connecting plate

36, 37: 1st, 2nd linear motion guide 38, 39: 1st, 2nd guider

40: slot 41, 42: first and second blades

43: adjusting bolt 44: elastic member

45: position detection sensor

The present invention relates to an electronic component pre-alignment device, and more particularly, to an electronic component pre-alignment device that allows for quick and accurate alignment regardless of the component size.

In general, inspection equipment such as die bonder of semiconductor manufacturing equipment or chip mounter of PCB assembly equipment, inspection equipment such as wafer prober, IC inspection device, etc. should be pre-aligned so that the position of the workpiece is kept constant at all times. Mostly, the process is automatic.

This prealignment is made quickly and accurately, many studies have been conducted to reduce the rate of defects.

FIG. 2 is a plan view showing the structure of a prior art electronic component pre-alignment device, wherein reference numeral 1 denotes an eccentric cam rotatable by a motor (not shown).

A horizontal blade 4 is integrally formed at the free end of the lever 3 provided with a cam follower 2 so as to be able to contact the outer circumference of the eccentric cam 1, and the pin 5 is pivotable to the other side. The hinge is fixed, of course, is installed in the elastic member (6).

Preferably, the home sensor 7 for detecting the initial origin of the eccentric cam 1 is fixedly installed.

The vertical blade 9, which is hinged and fixed by the pin 8 so as to be perpendicular to the horizontal blade 4 and is pivotable, is elastically installed by the lever 3 and the elastic member 10 so that the horizontal blade 4 and It is intended to interlock with each other.

The horizontal and vertical blades 4 and 9 described above are stopped by stoppers which are not shown so as to always be orthogonal in the initial state.

The heat block 12 holding the vacuum hole 11 is located below the horizontal and vertical blades 4 and 9.

In the prior art preliminary alignment device configured as described above, when the eccentric cam 1 rotates clockwise by the operation of the motor, the cam follower 2 contacts the outer circumferential surface of the eccentric cam 1 so that the lever 3 Is rotated counterclockwise around the pin 5 so that the horizontal blade 4 maintains a predetermined angle.

As the lever 3 is pivoted, the vertical blades 9 installed elastically with the elastic member 10 are interlocked together by the elastic member 10 to be turned clockwise about the pins 8 so that the horizontal blade ( 4) and the angle of more than 90 °.

In this state, when the electronic component (not shown) is placed on the upper side of the vacuum hole 11 of the heat block 12, it is adsorbed by the vacuum force of the vacuum suction device (not shown).

As such, when the electronic component is vacuum-adsorbed, the eccentric cam 1 is rotated counterclockwise.

At this time, the home sensor 7 is detected so that the eccentric cam 1 maintains the initial origin, and when the initial origin state is reached, the eccentric cam 1 is stopped.

As the eccentric cam 1 is rotated counterclockwise and the lever 3 is pivoted clockwise around the pin 5 by the elastic force of the elastic member 6, the horizontal blade 4 and the vertical blade are rotated. (9) aligns the electronic components at 90 °.

In this way, the electronic components can be aligned by the horizontal and vertical blades (4) and (9). However, since the two alignment surfaces are difficult to align correctly, the incidence of defects increases, and as the size of the electronic components changes, Since there is no replacement of the blade, there are inherent problems of deterioration of workability due to size change.

The present invention has been made to solve the problems of the prior art as described above, the object of the present invention is to improve the workability by reducing the incidence of defects as well as to improve the workability, regardless of the size of the parts An electronic component pre-alignment device can be provided.

In order to achieve the above object, the present invention provides a driving unit in which a driving pulley fixed to an axis of a driving means and a driven pulley having first and second guide protrusions are driven by belt connection, and a first of the driven pulley. The first and second connecting plates are hingedly installed on both free ends of the first and second rotating plates, and the two guide protrusions are in friction contact with each other. The guide portion consisting of guided first and second guiders, slots are formed to be stretchable on the first and second guiders, and are fixed to each other by adjustment bolts, and first and second elastic members are installed on one side. It provides an electronic component pre-alignment device, characterized in that consisting of an alignment portion consisting of two blades.

The adjustable tensioner is fixedly installed to maintain the tension of the belt.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

(A), (b) of FIG. 1 is a top view and a partial side cross-sectional view showing the structure of the electronic component pre-alignment apparatus of this invention, and this invention consists of the drive part 20, the guide part 21, and the alignment part 22. It is.

The driving unit 20 is rotatable to the driving pulley 24 fixed to the shaft of the driving means 23 and the shaft 26 fixed to the lower plate 25 as well as the first and second guide protrusions 27 and 28. The driven pulley 29 formed on the upper surface thereof is connected to the belt 30.

The driving means 23 is preferably applied to the motor capable of forward and reverse rotation.

In addition, the belt 30 is provided with a fixed pair of tensioners 31 that can be adjusted to maintain a predetermined tension.

The guide portion 21 is the first and second guide protrusions 27, 28 formed on the upper surface of the driven pulley 29, the frictional contact and the first and second to be orthogonally pivoted on the coaxial 26. The rotating plates 32 and 33 are fixed.

One side of the first and second connecting plates 34 and 35 is pivotally installed at both ends of the first and second rotating plates 32 and 33 so that the first and second rotary plates 32 and 33 are pivotable. It is fixed to the 1st, 2nd guiders 38 and 39 guided linearly to 36 and 37 so that the rotational motion of the 1st, 2nd rotation plates 32 and 33 may be converted into linear motion.

The first and second blades 41 and 42 having the slots 40 formed therein to be adjustable to the first and second guiders 38 and 39 are arranged by the adjusting bolts 43. In addition to the opposite fixed installation, the elastic member 44 is elastically installed on one side to align the electronic parts (not shown) by the linear guides of the first and second guiders 38 and 39, and alleviate the impact during the alignment. It is supposed to be.

Reference numeral 45 in the drawing indicates a position detecting sensor for detecting the position of the first rotating plate 32.

The electronic component pre-alignment device of the present invention configured as described above loosens the adjusting bolt 43 to suit the size of the electronic component, adjusts the first and second blades 41 and 42, and then tightens the adjusting bolt 43.

In this state, if the motor 23 rotates a predetermined angle clockwise, the drive pulley 24 fixed to the motor 23 shaft and the driven pulley 29 connected to the belt 30 rotate the predetermined angle clockwise. Done.

As the driven pulley 29 rotates, the first and second guide protrusions 27 and 28 formed on the upper surface of the driven pulley 29 and the first and second rotating plates 32 and 33 in rolling friction contact with each other are watched. The predetermined angle is rotated in the direction.

As the first and second rotating plates 32 and 33 are rotated, the first and second connecting plates 34 and 35 hingedly installed at both free ends thereof are opposed to each other so that the first and second linear motion guides 36 The first and second guiders 38 and 39, which are linearly guided by the reference element 37, slide outwards to overcome the elastic force of the elastic member 44.

As the first and second guiders 38 and 39 slide outwards, the front ends of the first and second blades 41 and 42 are opened.

In this state, the electronic parts are placed in a position to be aligned, and are sucked by a vacuum suction device (not shown), and the motor 23 is rotated counterclockwise by a predetermined angle.

According to the rotation of the motor 23, the first and second rotating plates 32 and 33 in which the first and second guide protrusions 27 and 28 formed on the upper surface of the driven pulley 29 are in friction contact with each other are elastic members. The first and second guiders 38 and 39, which are linearly guided by the restoring force of the 34, are opposed to each other inward and rotated counterclockwise by the first and second connecting plates 34 and 35. At the same time, the first and second blades 41 and 42 are operated inward to align the electronic components.

As described above, the present invention can adjust the first and second blades according to the size of the parts to be aligned, and since the four alignment surfaces can be used for accurate alignment, it is possible to improve workability as well as improve the failure rate. There is an advantage that can be reduced.

Claims (6)

The driving pulley 24 fixed to the motor 23 shaft capable of forward and reverse rotation and the driven pulley 29 having the first and second guide protrusions 27 and 28 formed on the upper surface thereof are connected to the belt 30. The driving unit 20 to be driven and the first and second guide protrusions 27 and 28 of the driven pulley 29 are respectively frictionally contacted with each other and fixedly rotatably installed orthogonally on the coaxial 26. The first and second connecting plates 34 and 35 are hingedly installed on both free ends of the first and second rotating plates 32 and 33, and the first and second linear motion guides 36 and 37 are guided linearly. Guide portion 21 composed of first and second guiders 38 and 39, and alignment portion composed of first and second blades 41 and 42 guided to the first and second guiders 38 and 39. (22) and, the electronic component pre-alignment device characterized in that. 2. An electronic component pre-alignment device according to claim 1, wherein an adjustable tensioner (31) is fixedly installed to maintain the tension of the belt (30). 2. The pre-alignment device of claim 1, wherein the first and second blades (41, 42) are installed to face each other by an adjusting bolt (43) in which a slot (40) is formed to be adjustable. The method of claim 1, wherein the drive means (23) of the drive unit 20, the electronic component pre-alignment device, characterized in that the motor capable of forward and reverse rotation is applied. 4. The pre-alignment device of claim 1 or 3, wherein the first and second blades (41) (42) are elastically installed on one side so as to mitigate an impact during alignment. The electronic component pre-alignment device according to claim 1, wherein a position detecting sensor (45) for detecting a position of the first rotating plate (32) is provided at a predetermined position.