KR101136271B1 - A patrs alignment device using vibration - Google Patents

Abstract

The present invention relates to a vibration alignment device. The present invention is connected to the base 30, the motor 32 is installed on the base 30 to provide a driving force for the vibration, and the motor shaft 33 of the motor 32 to generate a vibration while rotating together The vibration unit 36 and the vibration unit 36 are integrally installed, and the vibration plate 42 on which the lower surface is supported by the elastic support member 44 on the base 30 and the vibration unit ( Table 50, which is installed on the upper part of the diaphragm 42 vibrated by the elevating cylinder 46, is mounted thereon, and the template 1 on which the parts 5 are accommodated is placed in the alignment groove 3 of the upper surface. It is configured to include. According to the vibration alignment device according to the present invention having such a configuration, it is easier to align the relatively small components, and when the components are sandwiched in the template, the vibration in a different direction than usual will not affect other components. It is possible to solve the state caught by the parts, the parts are not affected by the static electricity that may occur in the diaphragm, and because the diaphragm is not mechanically constrained, there is a good durability of the device.

Vibration, parts, alignment

Description

A patrs alignment device using vibration}

Figure 1 is a side cross-sectional view showing that the parts are aligned to a typical template.

Figure 2 is a partial cross-sectional side view showing the configuration of a vibration alignment device according to the prior art.

Figure 3 is a schematic side cross-sectional view showing the configuration of a preferred embodiment of a vibration alignment device according to the present invention.

Figure 4 is a plan sectional view showing a main portion of the embodiment of the present invention.

5A to 5C are operational state diagrams sequentially showing that the embodiment of the present invention operates.

Explanation of symbols on the main parts of the drawings

30: base 32: motor

33: motor shaft 34: coupling

36: vibration unit 38: vibration axis

40: vibration case 42: vibration plate

45: bearing 46: lifting cylinder

48: lifting rod 50: table

52: support rod 54: fixing pin

56: support 58: extension arm                 

60: tagine cylinder 62: tagine rod

The present invention relates to a vibration sorting device, and more particularly, to a vibration sorting device for seating and aligning a relatively small part by using vibration in a plurality of seating grooves formed in the template.

In mounting components on a printed circuit board, there are a method of mounting components one by one on a printed circuit board and a method of pouring a plurality of components onto a template and arranging the components on a printed circuit board one by one or all at once.

1 shows a template and parts seated thereon. According to this, a plurality of alignment grooves 3 are recessed and formed in the upper surface of the plate-shaped template 1. A plurality of the alignment grooves 3 are arranged in a constant manner. The parts 5 are seated one by one in the alignment groove 3, so that a plurality of parts 5 are aligned in a predetermined direction on the template 1 as a whole. To this end, the inner structure of the alignment groove 3 is such that the component 5 is seated in a certain direction.

Aligning the part 5 to the template 1 in this way is performed by vibrating the template 1. Providing vibration to the template 1 is a vibration alignment device as shown in FIG.

According to FIG. 2, a cylinder 12 is installed at one side of the frame 10. The cylinder 12 may be provided with a plurality. The driving rod 14 of the cylinder 12 enters into and out of the cylinder 12. At the distal end of the drive rod 14 is supported a table 16 on which the template 1 is seated. The table 16 serves to receive the template 1 from a previous process and to be in close contact with the vibration unit 26 to be described below. To this end, the table 16 is elevated as the drive rod 14 enters and exits the cylinder 12.

One side of the frame 10 is provided with a motor 18. At the tip of the motor shaft 19 of the motor 18, the vibration shaft 22 is eccentrically installed by the coupling 20. The vibrating shaft 22 extends in one direction of the table 16 through one side of the frame 10. Reference numeral 24 denotes a vibration adjuster.

A vibration unit 26 is connected to the tip of the vibration shaft 22. The vibration unit 26 is installed on the frame 10, and the vibration plate 27 is moved on the one-dimensional plane by the vibration shaft 22. That is, the tip of the vibrating shaft 22 is connected to the diaphragm 27, and when the diaphragm 27 is viewed in plan view, a ball bushing 28 penetrates the diaphragm 27 vertically and horizontally. Therefore, the diaphragm 27 is the ball bushing extending in the vertical direction to each other by being rotated so that the vibration shaft 22 has a radius equal to the length eccentrically about the center of rotation of the motor shaft ( Vibrate along 28).

The lower surface of the diaphragm 27 is provided with an adhesive plate 29 in close contact with the upper surface of the template (1). The contact plate 29 is made of a rubber-like material and is in close contact with the upper surface of the template 1 so that the vibration of the diaphragm 27 is accurately transmitted to the template 1. A lower surface of the diaphragm 27 is provided with a fixing pin 29 ′ extending vertically in the upper surface direction of the table 16. The fixing pin 29 ′ serves to more reliably transmit the vibration of the diaphragm 27 to the template 1.

However, the above-described prior art has the following problems.

First, the existing vibration alignment device is suitable for a relatively large component (5). That is, only the vibration on the one-dimensional plane is used to align the parts 5. Therefore, there is a problem that the alignment is not properly made in the case of the relatively small size (5).

And, when the component (5) is sandwiched in the alignment groove (3) of the template (1) in the conventional vibration alignment device, by adjusting the vibration adjuster 26 to vary the eccentricity of the vibration shaft 22 to the strength of vibration Should be relatively large. However, if the vibration on the one-dimensional plane is so strong, there is a problem that affects the alignment state of the other aligned parts (5).

In addition, when a close contact with the contact plate 29 made of a rubber-like material is applied to the vibration, there is a problem that the component is attached to the contact plate 29 by the static electricity generated in the contact plate 29.

In addition, in the conventional vibration alignment device, the ball bushing 28 is installed through the diaphragm 27 of the vibration unit 26 vertically and horizontally, and the ball bushing 28 extends in a direction perpendicular to each other. For example, vibration is generated by moving the diaphragm 27 in the X and Y axis directions, respectively. Therefore, when the vibration width of the diaphragm 27 is large, there is a problem that the ball bushing 28 easily breaks.

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and to provide a vibration aligning device for aligning a relatively small sized part with a template.

It is another object of the present invention to provide a vibration alignment device capable of providing an excitation force of a predetermined size or more in a direction different from the direction in which the template is normally vibrated.

Another object of the present invention is to place the diaphragm in the lower portion of the template to prevent the effect of static electricity, etc. on the component seated on the template.

Still another object of the present invention is to support a diaphragm that provides vibration to the template with a spring on the base so that the diaphragm vibrates without being restrained.

According to a feature of the present invention for achieving the object as described above, the present invention is connected to the motor shaft of the motor, the motor is installed on the base and provides a driving force for the vibration, and the vibration while rotating together A vibration unit to be generated, a vibration plate in which the vibration unit is integrally installed and the lower surface is supported by an elastic support member on the base, and is installed to be elevated by an elevating cylinder on an upper part of the vibration plate vibrated by the vibration unit. And a table on which a template in which parts are accommodated is placed in an alignment groove on an upper surface thereof.                     

The vibration unit is connected to the motor shaft coaxially and rotated by a motor, a vibration case is fixed to the vibration plate and the vibration shaft penetrates the center while being rotatably supported by a bearing therein; It is configured to include an eccentric installed on the tip of the vibration shaft protruding to the outside of the vibration case.

The eccentric is provided on the vibration shaft such that the pair has a predetermined angular interval.

The eccentric couples an eccentric mass part, a connecting arm extending from the eccentric mass part and branched to surround the outer circumferential surface of the oscillation shaft, and a branched portion of the connecting arm to each other so that the connecting arm is fixed to the vibrating shaft. It consists of a fixing bolt.

The table is provided with a through hole for preventing interference with the eccentric and the oscillation shaft, the upper surface of the table is provided with a plurality of support rods for supporting the template, the support rod is provided with a fixing pin for fixing the template.

A support cylinder installed on the base is provided with a percussion cylinder having a percussion rod so as to generate abnormal vibration in the direction in which the elastic support member is supported on the template to face the upper surface of the template.

According to the vibration alignment device according to the present invention having such a configuration, it is easier to align the relatively small components, and when the components are sandwiched in the template, the vibration in a different direction than usual will not affect other components. It is possible to solve the state caught by the parts, the parts are not affected by the static electricity that may occur in the diaphragm, and because the diaphragm is not mechanically constrained, there is a good durability of the device.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the vibration alignment device according to the present invention will be described in detail.

Fig. 3 shows a preferred side view of the vibration alignment device according to the present invention in a schematic side cross-sectional view, and Fig. 4 shows a main configuration of the embodiment of the present invention in a flat cross-sectional view.

As shown in these figures, the base 30 is provided with components constituting the vibration alignment device of the present invention. The base 30 is provided with a motor 32. The motor 32 provides a driving force for generating vibration to the template 1. The vibration unit 36 is connected to the front end of the motor shaft 33 of the motor 32 by a coupling 34. The coupling 34 more precisely connects the vibration shaft 38 of the vibration unit 36 and the motor shaft 33.

The vibrating shaft 38 is provided at the vibrating unit 36 provided at the tip of the motor shaft 33. The vibration shaft 38 is connected to the motor shaft 33 to rotate together. An eccentric 39 is installed at the tip of the vibrating shaft 38. Preferably, the eccentric 39 is provided with a pair at a predetermined angle. The eccentric 39 causes the tip of the vibrating shaft 38 to eccentrically rotate to ultimately provide vibration to the template 1.

The configuration in which the eccentric 39 is installed on the vibrating shaft 38 is well illustrated in FIG. 4. The eccentric 39 has a connecting arm 39a elongated at the eccentric mass 39m. The connecting arm 39a connects the eccentric 39 to the vibration shaft 38. The connecting arm 39a is bifurcated so that its tip surrounds the oscillation shaft 38. The branched portion is clamped by the fixing bolt 39b so that the connecting arm 39a is fixed to the vibration shaft 38. The eccentric 39 is provided with a pair, the amplitude can be controlled by varying the angle between the connecting arm (39a) of the eccentric (39).

The vibration shaft 38 is installed through the vibration case 40. The vibration shaft 38 is rotatably supported by the bearing 45 in the vibration case 40. The vibration case 40 penetrates through the vibration plate 42 and is fixed to the vibration plate 42. Therefore, the vibration case 40 vibrates together with the vibration plate 42.

The diaphragm 42 has a plate shape having a predetermined area and is supported by the base 30 by the elastic support member 44. Here, when the two-dimensional plane corresponding to the upper surface of the diaphragm 42 is called X, Y plane, the elastic support member 44 supports the diaphragm 42 in the Z-axis direction to enable vibration in the Z-axis direction. Let's do it. At least four or more elastic support members 44 may be used to stably support the diaphragm 42.

A plurality of lifting cylinders 46 are installed in the diaphragm 42. In the present embodiment, the lifting cylinder 46 is installed on the lower surface of the diaphragm 42, but is not necessarily so. The lifting rod 48 of the lifting cylinder 46 protrudes above the diaphragm 42. A table 50 is supported at the tip of the elevating rod 48. The table 50 is supported and lifted by the lifting rods 48 of the plurality of lifting cylinders 48. The lifting and lowering of the table 50 is for seating the template 1 on the table 50. That is, the table 50 is elevated to receive the template 1 from the previous process or to transfer to the next process. Reference numeral 50 'is a through hole formed in the table 50.

A plurality of support rods 52 are provided on the table 50, and fixing pins 54 are installed at the tip of the support rods 52. The fixing pin 54 is inserted into a fixing groove (not shown) formed in the lower surface of the template 1 to stably support the template 1 on the table 50.

A support 56 is vertically erected on one side of the base 30, and an extension arm 58 is provided at an upper end of the support 56. The extension arm 58 extends in a direction perpendicular to the support 56. A percussion cylinder 60 is installed at the tip of the extension arm 58. The percussion cylinder 60 is provided with a percussion rod 62 to strike an upper surface of the template 1 to provide abnormal vibration. The percussion cylinder 60 provides an abnormal vibration when the component 5 seated on the template 1 is not moved by vibration, thereby making the component 5 aligned with the vibration. will be.

Hereinafter, the operation of the vibration alignment device according to the present invention having the configuration as described above in detail.

In the template 1 delivered in the previous process, the component 5 is seated in various positions inside the alignment groove 3. In order to receive the template 1, as shown in FIG. 5A, the table 50 is relatively lowered. The lowering of the table 50 is performed by driving the cylinder 46. At this time, the through hole 50 ′ formed in the center of the table 50 prevents the vibration shaft 38, the eccentric 39, and the table 50 from interfering with each other.

When the template 1 is seated on the support rod 52 of the table 50, the fixing pin 54 is seated in the fixing groove of the bottom surface of the template 1 so that the template 1 is attached to the table 50. It does not move arbitrarily.

In this state, the lifting cylinder 46 is operated to raise the lifting rod 48 to move to the working position. The state in which the table 50 is raised to the working position is shown in FIG. 5B.

When the table 50 is in working state, the motor 32 is operated. When the motor 32 is operated, as the motor shaft 33 is rotated, the vibration shaft 38 of the vibration unit 36 connected by the motor shaft 33 and the coupling 34 rotates.

At this time, by the eccentric 39 provided on the upper end of the vibration shaft 38, the vibration shaft 38 is rotated while generating a vibration, the vibration unit 36 generates a vibration. When vibration occurs in the vibration unit 36, the vibration plate 42 vibrates. That is, the diaphragm 42 vibrates on a two-dimensional plane, which is mainly a plane parallel to the upper surface thereof, and also vibrates in the supporting direction of the elastic support member 44. This state is shown in FIG. 5C.

The vibration of the diaphragm 42 is transmitted to the template 1 through the table 50, and the parts 5 in the template 1 are seated in the correct position in the alignment groove 3.

On the other hand, the percussion cylinder 60 is used for the case that there is a hardly correct posture in the part 5 in the template (1). The percussion cylinder 60 provides abnormal vibration in the Z-axis direction, which is a completely different direction from the vibration direction generated by the vibration unit 36. Therefore, the part 5 which was not moved by the vibration of the vibration unit 36 in the template 1 can move.

Subsequently, if vibration by the vibration unit 36 continues, the parts 5 in the alignment grooves 3 of the template 1 can all be aligned in the correct posture.

On the other hand, in order to adjust the amplitude of the vibration generated in the vibration unit 36, the angle at which the pair of eccentric 39 is installed may be different. In addition, the vibration of the vertical vibration of the diaphragm 42 is adjusted by adjusting the spring constant k of the elastic support spring 44.

The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

For example, in the present invention, the percussion cylinder 60 is not necessarily provided, and even if the percussion cylinder 60 is not present, alignment of the parts 5 having a relatively small size can be sufficiently performed.

In the vibration alignment device according to the present invention as described in detail above, the following effects can be obtained.                     

First, in the present invention, the diaphragm is not constrained and moved by a separate mechanical configuration, but is vibrated by vibration generated in the vibration unit in a state supported by the elastic support member. Therefore, there is an effect that durability that does not occur due to friction between the components constituting the vibration alignment device is increased.

In the present invention, a separate percussion cylinder can be used to provide an excitation force of a predetermined size or more in a direction different from the direction in which the template is normally vibrated, thereby reliably aligning parts that are not aligned by general vibration.

In the present invention, the diaphragm is configured not to face the component seated on the template, so that the influence of static electricity or the like generated on the diaphragm does not act on the part. Therefore, there is an effect that even a relatively small part can be aligned more reliably.

Claims (6)

Bass, A motor installed in the base and providing a driving force for vibration; A vibration unit connected to the motor shaft of the motor to generate vibrations while rotating together; A vibration plate having the vibration unit installed integrally and having a lower surface supported by an elastic support member on the base; It includes a table which is installed to be elevated by the lifting cylinder in the upper portion of the diaphragm vibrated by the vibration unit, and the template is seated in the alignment groove of the upper surface, The vibration unit, A vibration shaft which is coaxially connected with the motor shaft and rotated by a motor; A vibration case fixed to the vibration plate and rotatably supported by a bearing therein while the vibration shaft penetrates a center thereof; Vibration alignment device characterized in that it comprises an eccentric is installed on the front end of the vibration shaft protruding to the outside of the vibration case. delete The vibration aligning device according to claim 1, wherein the eccentric is provided on the vibration shaft such that the pair has a predetermined angular interval. The method of claim 3, wherein the eccentric is Eccentric mass part, A connecting arm extending from the eccentric mass and branched to surround the outer circumferential surface of the vibration shaft; And a fixing bolt which couples the branched portions of the connecting arm to each other so that the connecting arm is fixed to the vibration shaft. According to claim 4, The table is formed with a through hole for preventing interference with the eccentric and the oscillation shaft, The upper surface of the table is provided with a plurality of support rods for supporting the template, the support rod for fixing the template Vibration alignment device characterized in that the fixing pin is provided. According to claim 5, wherein the support installed on the base is characterized in that the percussion cylinder provided with a percussion rod to generate an abnormal vibration in the direction in which the elastic support member is supported on the template facing the upper surface of the template Vibration alignment device.

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