WO2014157046A1

WO2014157046A1 - Vibration-type component-conveyance device

Info

Publication number: WO2014157046A1
Application number: PCT/JP2014/058000
Authority: WO
Inventors: 石河　智海
Original assignee: Ntn株式会社
Priority date: 2013-03-27
Filing date: 2014-03-24
Publication date: 2014-10-02
Also published as: CN105073609A; JP2014189365A; CN105073609B; JP6041730B2; KR20150134317A

Abstract

Provided is composite vibration-type component-conveyance device in which an intermediate vibration body (4) and a base (3) are coupled by two horizontal-vibration flat springs (5a, 5b), and an upper vibration body (2) and the intermediate vibration body (4) are coupled by vertical-vibration flat springs (6). Each of the horizontal-vibration flat springs (5a, 5b) is respectively fixed at two fixation positions on the same horizontal line such that a positional relationship between fixation positions thereof to the intermediate vibration body (4) and fixation position thereof to the base (3) alternately interchanges in a component conveyance direction (direction X), and is arranged such that the orientation of displacement in a direction (direction Y) orthogonal to direction X in a horizontal plane becomes the same direction as deformation in direction X. As a result, yawing motion of a trough (a component conveyance member) fitted to the upper vibration body (2) is suppressed, and a reduction in component conveyance speed can be inhibited.

Description

Vibrating parts conveyor

The present invention relates to a vibration type component conveying apparatus that conveys a component by vibrating a component conveying member by driving an excitation mechanism.

In the vibration type component conveying device, the base and the intermediate vibrating body are connected by a horizontal vibration leaf spring directed in the vertical direction for the purpose of imparting optimum vibration to the component conveying member to the component conveying member, A composite that can adjust the horizontal (vertical) direction vibration and vertical vibration of the component conveying member by connecting the component conveying member and the intermediate vibrator with a vertical vibration leaf spring in the horizontal direction. There is a vibration type (see, for example, Patent Document 1 below).

However, in the composite vibration type component conveying device as described above, since the horizontal vibration leaf springs are fixed at two fixed positions in the vertical direction, vibration is also generated in the vertical direction when vibrating in the horizontal direction. I will let you. Therefore, it is impossible to adjust the vibration in the horizontal direction of the component conveying member so as not to affect the vibration in the vertical direction, and it is difficult to actually apply the desired vibration to the component conveying member.

In contrast, the present applicant fixes the horizontal vibration elastic member (such as a leaf spring) at two fixed positions on the same horizontal line orthogonal to the component conveying direction, so that the horizontal deformation is vertical. A technology for suppressing the occurrence of vertical vibration caused by vibration in the horizontal direction (part conveying direction) was developed in advance of this application (see Patent Document 2 below). .

JP 55-84707 A JP2012-41107A

By the way, in the invention described in the above-mentioned Patent Document 2, since it is possible to arrange the horizontal vibration leaf springs at two or more locations, for example, as shown in FIGS. 10 and 11, the vibration type in which the horizontal vibration leaf springs are arranged. A parts conveying device is also conceivable (Japanese Patent Application No. 2011-243355). In this component conveying apparatus, an intermediate vibrating body 54 is provided between an upper vibrating body 52 and a base 53 to which a trough (component conveying member) 51 having a linear component conveying path 51 a is attached. The base 53 is connected by two horizontal vibration plate springs 55, and the upper vibration body 52 and the intermediate vibration body 54 are connected by four vertical vibration plate springs 56, and the horizontal direction (component conveying direction, in the figure). A first vibration mechanism 57 that generates vibration in the X direction) and a second vibration mechanism 58 that generates vibration in the vertical direction (Z direction in the figure) are provided. The two horizontal vibration leaf springs 55 are connected at one end to the leaf spring mounting portion 53a of the base 53 so that the fixed positions at both ends are located on the same horizontal line orthogonal to the component conveying direction (X direction). The end portions are respectively fixed to leaf spring mounting portions 54 a provided on the intermediate vibrating body 54. Here, the two leaf spring mounting portions 53a of the base 53 and the two leaf spring mounting portions 54a of the intermediate vibrating body 54 intersect so that a straight line connecting the installation positions of the same mounting portion intersects in plan view. Therefore, the two horizontal vibration leaf springs 55 are arranged so that the positional relationship between the two fixed positions is switched in the component conveyance direction.

In the vibration type component conveying apparatus in which the horizontal vibration leaf springs 55 are arranged as described above, when the excited portion (the trough 51, the upper vibrating body 52, the intermediate vibrating body 54) is vibrated in the component conveying direction (X direction). As shown in FIG. 12, the horizontal vibration leaf spring 55 is displaced not only in the X direction but also in a direction (Y direction) orthogonal to the X direction in the horizontal plane. When the exciting force in the X direction is small, the displacement y in the Y direction is small because the displacement in the X direction of the horizontal vibration leaf spring 55 is small. Therefore, the vibration due to the displacement y in the Y direction has little influence on the component conveyance performance.

Incidentally, in general, in order to increase the component conveying speed of the vibration type component conveying apparatus, it is necessary to increase the vibration frequency in the component conveying direction (X direction) or increase the vibration displacement. However, the vibration frequency is determined by the drive frequency applied to the electromagnet that generates the attraction force, and the drive frequency is usually that of the excited portion so that vibration can be generated with low power using the resonance phenomenon. It is set near the natural frequency in the X direction. For this reason, when the overall size of the device is increased, or the trough mass is increased depending on the part conveyance mode, and the natural frequency of the excited part decreases, the vibration frequency decreases with the decrease in the drive frequency. In order to increase the conveying speed, the vibration displacement in the X direction must be increased.

And in the vibration type component conveying apparatus of Patent Document 2, when the vibration displacement in the X direction is increased in order to increase the conveying speed as described above, the displacement in the Y direction is also increased. The vibration in the Y direction makes it difficult to convey parts.

As shown in FIG. 13, which is a simplified model of the configuration of the component conveying device, when X-direction vibration is applied to the upper vibration body and the intermediate vibration body (white arrow in the figure), X of each horizontal vibration leaf spring is applied. A displacement in the Y direction (black arrow in the figure) with respect to the direction deformation occurs in different directions. As described above, the direction of displacement in the Y direction of each horizontal vibration leaf spring is different, so that the intermediate vibrator generates a rotational movement in the horizontal plane (in the XY plane), that is, a so-called yawing movement. In this simple model, the upper vibrating body and the intermediate vibrating body are regarded as integral in both directions because the vertical vibration leaf springs connecting the vibrating bodies have high rigidity in the X and Y directions.

Therefore, if the excitation force applied in the X direction is increased in order to increase the parts conveyance speed, the displacement in the Y direction increases with the increase in the displacement in the X direction, and the yawing motion of the upper vibrator and the intermediate vibrator is increased. growing. This yawing motion causes meandering of the parts on the part transport path of the trough (part transport member) attached to the upper vibrating body, resulting in a substantial decrease in the part transport speed.

An object of the present invention is to suppress yawing movement of a component conveying member and prevent a decrease in component conveying speed in a composite vibration type component conveying apparatus.

In order to solve the above problems, the present invention provides a component conveying member in which a component conveying path is formed, a component conveying unit including an upper vibrating body to which the component conveying member is attached, a base installed on a floor, An intermediate vibration body provided between the upper vibration body and the base, a first elastic member that connects the intermediate vibration body and the base and has a restoring force generation function and a guide function, and the upper vibration body And a second elastic member having a restoring force generating function and a guiding function, and a plurality of vibration mechanisms for applying a vibration force to each of the upper vibration body and the intermediate vibration body. A vibration generating mechanism, wherein one of the first elastic member and the second elastic member is a horizontal vibration elastic member and the other is a vertical vibration elastic member, and the horizontal vibration elastic member and the first vibration member Vibration in the horizontal direction in the parts transport section The vertical vibration elastic member and the second vibration mechanism are used to apply vertical vibration to the component conveying unit, and a plurality of the horizontal vibration elastic members are provided in the component conveying direction. The fixed position to the intermediate vibrator and the fixed position to the base or upper vibrator are located on the same horizontal line that forms a predetermined angle with the parts transport direction, and the positional relationship between the two fixed positions is the parts transport direction. In the vibration type component conveying apparatus arranged so as to be alternately replaced, the direction of displacement in the direction orthogonal to the component conveying direction and the horizontal plane with respect to the deformation in the component conveying direction of the elastic member for horizontal vibration is the same direction, respectively. It was assumed to have a guidance function.

In the above configuration, the elastic member for horizontal vibration may be arranged such that at least one of them is orthogonal to the component conveying direction and the other is not orthogonal, neither of which is orthogonal to the component conveying direction. You may arrange as follows.

Specifically, for example, in the case where two leaf springs as horizontal vibration elastic members connect the intermediate vibration body and the base, in FIGS. 14A and 14B corresponding to FIG. 13 described above. As shown in the simplified model, one horizontal vibration leaf spring is arranged so as to be orthogonal to the component conveyance direction (X direction), and the other horizontal vibration leaf spring is applied to the upper vibration body and intermediate vibration body. By tilting so that the fixed position on the intermediate vibrating body side is located behind the fixed position on the base side with respect to the direction of the vibration in the X direction (the white arrow in the figure), The yawing movement of the upper vibrator and the intermediate vibrator can be suppressed by causing the displacement in the Y direction (solid arrow in the figure) to occur in the same direction with respect to the deformation in the X direction of the horizontal vibration leaf spring.

Further, as shown in the simplified model of FIG. 14C, both horizontal vibration leaf springs are directed in the direction of X-direction vibration (the white arrow in the figure) applied to the upper vibration body and the intermediate vibration body. Even if the horizontal vibration plate springs are inclined in the same direction, displacement in the Y direction with respect to the deformation in the X direction of each horizontal vibration leaf spring (black arrow in the figure) occurs in the same direction, and the upper vibrator and the intermediate vibrator Can suppress yawing movement.

Then, by suppressing the yawing movement of the upper vibrator and the intermediate vibrator as described above, the component conveying member attached to the upper vibrator is also restrained from the yawing movement and is merely translated in an oblique direction within the horizontal plane. Therefore, it is possible to prevent meandering of parts on the part conveyance path and to prevent a decrease in the part conveyance speed.

Further, by making the natural frequency of the horizontal vibration elastic member different between the horizontal direction and the vertical direction, or by making the vertical rigidity of the horizontal vibration elastic member higher than the rigidity in the horizontal direction. Further, it is possible to more effectively suppress the vertical vibration caused by the horizontal vibration.

Each excitation mechanism is composed of an electromagnet and a movable iron core, a reference waveform generating means for generating a reference waveform of an applied voltage in an applied voltage setting circuit to one of the electromagnets, and an amplitude with respect to the reference waveform Waveform amplitude adjusting means for adjusting is provided, and the applied voltage setting circuit for the other electromagnet is generated by the phase difference adjusting means for generating a waveform having a predetermined phase difference with respect to the reference waveform, and the phase difference adjusting means By providing waveform amplitude adjustment means to adjust the amplitude of the waveform so that the waveform, period, phase difference and amplitude of the voltage applied to each electromagnet can be controlled freely, horizontal vibration and vertical vibration Can be easily brought close to the desired vibration.

As described above, the vibration type component conveying device of the present invention can prevent the meandering of the component on the component conveying path by suppressing the yawing movement of the component conveying member, and can prevent the decrease in the component conveying speed. The optimal vibration can be applied to the component conveying member.

Partially cutaway front view of the component conveying apparatus of the first embodiment Top view without trough in FIG. Side view of FIG. Schematic diagram of an applied voltage setting circuit of each excitation mechanism of the component conveying apparatus of FIG. The top view except the trough of the component conveying apparatus of 2nd Embodiment FIG. 5 is a partially cutaway front view showing a modification of the arrangement of the vertical vibration leaf springs of FIG. 5. Top view without trough in FIG. Partially cutaway front view of the component conveying apparatus of the third embodiment Top view without trough in FIG. Partial cutaway front view of a conventional parts conveyor Top view without trough of FIG. Explanatory drawing of the vibration behavior of the horizontal vibration leaf spring of FIG. Explanatory drawing (top view) of yawing motion with a simple model of a conventional parts conveyor a, b, and c are explanatory diagrams (top view) of the yawing motion suppression action in the simple model of the present invention, respectively.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 9. 1 to 3 show a vibration type component conveying apparatus according to the first embodiment. In this component conveying device, a trough (component conveying member) 1 in which a linear component conveying path 1a is formed is attached to the upper surface of an upper vibrator 2, and between the upper vibrator 2 and a base 3 installed on the floor. The intermediate vibrator 4 is connected to the base vibrator 3 by two

leaf springs

5a and 5b as first elastic members, and the upper vibrator 2 and the intermediate vibrator 4 are connected to the four A first vibration mechanism 7 that is connected by a leaf spring 6 as an elastic member 2 and generates a vibration in the horizontal direction (component conveying direction, X direction in the figure) between the intermediate vibrating body 4 and the base 3. A second vibration mechanism 8 is provided between the upper vibrating body 2 and the base 3 for generating vibration in the vertical direction (Z direction in the figure).

The first vibration mechanism 7 and the second vibration mechanism 7 have a vibration generating function for applying a vibration force to the upper vibration body 2 and the intermediate vibration body 4, respectively, and have a restoring force generation function and a guidance function. The component in the component conveying direction along the component conveying path 1a and the vertical component are transferred to the component conveying unit composed of the trough 1 and the upper vibrating body 2 by the vibration generating mechanism including the first and

second leaf springs

5a, 5b, and 6. By generating vibrations composed of directional components, the components on the component conveying path 1a are conveyed in the component conveying direction.

The base 3 is formed in a rectangular shape, and columnar leaf spring mounting portions 3a are erected at two diagonal corners thereof, and a vibration-proof member such as a vibration-proof rubber (not shown) fixed to the floor surface. ) Is supported.

The intermediate vibrating body 4 is formed in a rectangular frame shape, and two diagonal corners thereof are opposed to the upper end portion of the leaf spring mounting portion 3a of the base 3 on the outer peripheral side, and the inner peripheral surface is a lower portion of the upper vibrating body 2. Are arranged to face each other. Further, on the outer peripheral surface, a leaf spring mounting portion 4a is provided that protrudes in the component conveying direction (X direction) from two diagonal corners that do not face the leaf spring mounting portion 3a of the base 3.

The

first leaf springs

5a and 5b have one end portion of the base 3 such that the front and back surfaces thereof are directed in the component conveying direction, and the fixed positions of both ends are located on the same horizontal line forming a predetermined angle with the component conveying direction. A horizontal vibration leaf spring (an elastic member for horizontal vibration) that has the other end fixed to the leaf spring attachment portion 3a and is fixed to the leaf spring attachment portion 4a of the intermediate vibration member 4 so as to vibrate the intermediate vibration member 4 in the horizontal direction. ).

Here, the two leaf spring mounting portions 3a of the base 3 and the two leaf spring mounting portions 4a of the intermediate vibrating body 4 intersect so that straight lines connecting the installation positions of the same mounting portion intersect in plan view. Therefore, the two horizontal

vibration leaf springs

5a and 5b are arranged so that the positional relationship between the two fixed positions is switched in the component conveying direction. One horizontal vibration leaf spring 5a is arranged so as to be orthogonal to the component conveying direction (X direction), and the other horizontal vibration leaf spring 5b is a fixed position on the intermediate vibration member 4 side. Is arranged in a tilted state so as to be positioned closer to the center of the entire apparatus than the fixed position on the base 3 side.

In addition, each horizontal

vibration leaf spring

5a, 5b has a horizontal thickness dimension that is considerably smaller than the vertical width dimension, the natural frequency in the horizontal direction is significantly different from the natural frequency in the vertical direction, and the vertical direction. Is sufficiently higher than the horizontal rigidity.

On the other hand, the second leaf spring 6 has one end at the bottom of the upper vibrator 2 so that the front and back surfaces are oriented vertically and the fixed positions of both ends are located on the same horizontal line perpendicular to the component conveying direction. The other end portion is fixed to the edge in the longitudinal direction of the intermediate vibrating body 4 to form a vertical vibration leaf spring (vertical vibration elastic member) that supports the upper vibrating body 2 so as to vibrate in the vertical direction.

The first vibrating mechanism 7 includes an AC electromagnet 9 installed on the base 3 and a movable iron core 10 attached to the intermediate vibrating body 4 so as to face the electromagnet 9 with a predetermined interval. It consists of Although the movable iron core 10 is attached to the intermediate vibrator 4 in this example, it may be attached to the upper vibrator 2. On the other hand, the second vibration mechanism 8 includes an AC electromagnet 11 installed on the base 3, and a movable iron core 12 attached to the upper vibrator 2 so as to face the electromagnet 11 with a predetermined interval. It consists of

When the electromagnet 9 of the first vibration mechanism 7 is energized, an intermittent electromagnetic attractive force acts between the electromagnet 9 and the movable iron core 10, and this electromagnetic attractive force and the restoring force of the horizontal

vibration leaf springs

5a and 5b. Thus, a horizontal vibration is generated in the intermediate vibrating body 4, and this vibration is transmitted to the upper vibrating body 2 and the trough 1 via the vertical vibration leaf spring 6. At this time, the intermediate vibrator 4, the upper vibrator 2 and the trough 1 are displaced from the state shown in FIGS. 1 and 2 to the right side in the drawing by the horizontal vibration applied to the intermediate vibrator 4. Yes.

Further, when the electromagnet 11 of the second vibration mechanism 8 is energized, an intermittent electromagnetic attractive force acts between the electromagnet 11 and the movable iron core 12, and this electromagnetic attractive force and the restoring force of the vertical vibration leaf spring 6. As a result, vertical vibrations are generated in the upper vibrating body 2 and the trough 1. The components supplied to the trough 1 are conveyed on the component conveying path 1a by the horizontal vibration and the vertical vibration.

Therefore, the horizontal vibration and the vertical vibration of the trough 1 can be adjusted by separately setting the voltage applied to the

electromagnets

9 and 11 of the

vibration mechanisms

7 and 8.

FIG. 4 shows a circuit for setting an applied voltage to the

electromagnets

9 and 11 of the

vibration mechanisms

7 and 8. The circuit of the first vibration mechanism 7 is provided with a reference waveform generating means 13 for generating a reference waveform of the applied voltage. The reference waveform generation means 13 generates a reference waveform corresponding to the set value of the type of waveform (for example, sine wave) and the period (frequency) of the waveform. On the other hand, the circuit of the second excitation mechanism 8 is provided with phase difference adjusting means 14 for generating a waveform having a predetermined phase difference with respect to the reference waveform generated by the reference waveform generating means 13.

In each of the

excitation mechanisms

7 and 8, the waveform generated by the reference waveform generating means 13 or the phase difference adjusting means 14 is adjusted to a predetermined amplitude by the waveform amplitude adjusting means 15, and the PWM signal generating means 16 After conversion to a PWM signal, the voltage is amplified by the voltage amplifying means 17 and applied to the

electromagnets

9 and 11. Thus, the horizontal vibration and the vertical vibration can be adjusted by freely controlling the waveform, period, phase difference and amplitude of the voltage applied to the

electromagnets

9 and 11, respectively. Note that when each excitation mechanism is not driven by the PWM method, the PWM signal generating means 16 becomes unnecessary.

This vibration-type component conveying device has the above-described configuration, and when vibration is generated in the intermediate vibrating body 4 by driving the first vibrating mechanism 7, the two horizontal

vibration leaf springs

5a and 5b are only in the horizontal direction. Since it is deformed, the vibration generated in the intermediate vibrating body 4 includes almost no vertical vibration, and is substantially only in the horizontal direction.

Also, one horizontal vibration leaf spring 5a is arranged so as to be orthogonal to the component conveying direction (X direction), and the other horizontal vibration leaf spring 5b is applied to the upper vibration body 2 and the intermediate vibration body 4. With respect to the direction of vibration in the X direction, the fixed position on the intermediate vibrator 4 side is tilted so as to be located behind the fixed position on the base 3 side. When the horizontal vibration is displaced from the state of FIG. 2 to the right side in the figure by the vibration in the direction, the displacement in the direction (Y direction) perpendicular to the X direction in the horizontal plane of each horizontal

vibration leaf spring

5a, 5b is all in FIG. (See FIG. 14A).

That is, since the displacement in the Y direction with respect to the deformation in the X direction of the horizontal

vibration leaf springs

5a and 5b is generated in the same direction, the yawing motion of the upper vibration body 2 and the intermediate vibration 4 can be suppressed. As a result, the trough 1 attached to the upper vibrating body 2 is also restrained from yawing movement, and the trough 1 is merely translated in an oblique direction in the horizontal plane, so that the parts do not meander on the part conveyance path 1a and are desired. It is possible to ensure the parts conveyance speed. In addition, when parts are aligned on the part transport path 1a, there is an advantage that the parts can be easily aligned because the parts are transported to one side in the width direction of the part transport path 1a.

Further, since the horizontal

vibration leaf springs

5a and 5b have a large difference between the natural frequency in the horizontal direction and the natural frequency in the vertical direction, this also suppresses the occurrence of vertical vibration due to the vibration in the horizontal direction.

That is, in general, when trying to increase the component conveying speed with a complex vibration type component conveying device, each excitation mechanism is uniquely designed in the horizontal direction of the trough in order to efficiently increase the amplitude of horizontal vibration with less power. It is often driven at a frequency near the frequency. At this time, if the horizontal vibration frequency and the vertical vibration frequency of the horizontal vibration leaf spring are the same, or if they are only a few Hz apart, the intermediate vibration body generated by the horizontal vibration The vibration in the vertical direction cannot be ignored. However, in the component conveying device of this embodiment, since there is a sufficient difference between the natural frequency in the horizontal direction and the natural frequency in the vertical direction of the horizontal

vibration leaf springs

5a and 5b, the intermediate vibrating body 4 caused by the horizontal vibration. The vibration in the vertical direction can be kept small.

Here, the horizontal vibration leaf spring can make a difference between the natural frequency in the horizontal direction and the natural frequency in the vertical direction even when the horizontal thickness dimension is larger than the vertical width dimension, for example. From the viewpoint of rigidity to be described later, it is preferable to adopt the shape as in this embodiment.

That is, in this embodiment, the horizontal dimension of the horizontal

vibration leaf springs

5a and 5b is formed to be considerably smaller than the vertical dimension, and the vertical rigidity is sufficiently higher than the horizontal rigidity. The vibration in the vertical direction of the vibrating body 4 can be further reduced.

As described above, in the component conveying device of this embodiment, the vertical vibration generated in the trough 1 is substantially only the vibration by the second vibration mechanism 8 and the vertical vibration leaf spring 6, and the trough 1 is also yawing motion. Since it can suppress, the desired vibration suitable for component conveyance can be easily given to the trough 1 by adjusting the horizontal vibration and the vertical vibration respectively.

FIG. 5 shows a second embodiment. In this embodiment, based on the first embodiment, both horizontal

vibration leaf springs

5 a and 5 b are set in the same direction with respect to the direction of vibration in the X direction applied to the upper vibration body 2 and the intermediate vibration body 4. Tilt and arrange. As described above, even if both the horizontal

vibration leaf springs

5a and 5b are inclined so as not to be orthogonal to the X direction, the X of each horizontal

vibration leaf spring

5a and 5b is the same as in the first embodiment. The displacement in the Y direction with respect to the deformation in the direction occurs in the same direction (see FIG. 14C), and the yawing motion of the upper vibrating body 2, the intermediate vibrating body 4 and the trough 1 can be suppressed.

6 and 7 show a modification of the arrangement of the vertical vibration leaf springs 6 of the second embodiment described above. In this modification, the vertical vibration leaf springs 6 are fixed to the lateral edges of the upper vibration body 2 and the intermediate vibration body 4 at two fixed positions on the same horizontal line parallel to the X direction.

8 and 9 show a third embodiment. In this embodiment, the intermediate vibrating body 4 and the base 3 are connected by

elastic members

18a and 18b for horizontal vibration instead of the plate springs 5a and 5b for horizontal vibration of the second embodiment. In the horizontal vibration

elastic members

18 a and 18 b, two leaf springs 19 with the front and back surfaces facing the X direction are arranged along the component conveying direction, and a spacer 20 is provided between the fixed portions of the leaf springs 19. Thus, like the horizontal

vibration leaf springs

5a and 5b of the second embodiment, they are arranged to be inclined in the same direction.

In the component conveying apparatus of the third embodiment, the torsional rigidity of the horizontal vibration

elastic members

18a and 18b is higher than that of the horizontal

vibration leaf springs

5a and 5b of the second embodiment. Even when a moment acts on the intermediate vibrating body 4 due to an inclination of time, the horizontal vibration

elastic members

18a and 18b are not twisted and deformed only in the substantially horizontal direction. Therefore, in the apparatus according to the second embodiment, it is easy to realize desired vibration suitable for component conveyance, compared to the possibility that the horizontal

vibration leaf springs

5a and 5b are twisted.

In each of the above-described embodiments, the first leaf spring that connects the intermediate vibration body and the base is a horizontal vibration leaf spring, and the second leaf spring that connects the upper vibration body and the intermediate vibration body is for vertical vibration. Although the leaf spring is used, conversely, the first leaf spring may be a vertical vibration leaf spring and the second leaf spring may be a horizontal vibration leaf spring. Further, one leaf spring is arranged at each location, but two or more leaf springs may be used as one.

In addition, although the horizontal vibration leaf springs are arranged in two places, they may be constituted by three or more places. In this case, the positional relationship between the fixed position to each intermediate vibrator and the fixed position to the base is a component. What is necessary is just to arrange | position so that the direction of the displacement to the Y direction with respect to a deformation | transformation of a X direction may turn in the same direction alternately by the conveyance direction. On the other hand, the vertical vibration leaf springs are arranged at four locations, but may be configured at two or more locations.

Furthermore, in each embodiment, a leaf spring is used for the horizontal vibration elastic member and the vertical vibration elastic member, but an elastic member other than the leaf spring can also be used. Moreover, although each vibration mechanism uses what consists of an electromagnet and a movable iron core, it is not restricted to this, What is necessary is just an actuator which can generate | occur | produce the same vibration force.

1 trough (component conveying member)
2 Upper vibration body 3 Base 4

Intermediate vibration bodies

5a, 5b First leaf spring (leaf spring for horizontal vibration)
6 Second leaf spring (plate spring for vertical vibration)
7 First vibration mechanism 8

Second vibration mechanism

9, 11

Electromagnets

10, 12

Movable iron cores

18a, 18b Horizontal vibration elastic member 19 Leaf spring 20 Spacer

Claims

Provided between a component conveying member in which a component conveying path is formed, a component conveying unit including an upper vibrating body to which the component conveying member is attached, a base installed on a floor, and the upper vibrating body and the base. A first elastic member having a restoring force generating function and a guiding function, and the upper vibrating body and the intermediate vibrating body are connected to generate the restoring force. A first elastic member including a second elastic member having a function and a guide function, and a vibration generating mechanism including a plurality of vibration mechanisms that apply vibration force to each of the upper vibrator and the intermediate vibrator. One of the elastic members and the second elastic member is a horizontal vibration elastic member, and the other is a vertical vibration elastic member. The horizontal vibration elastic member and the first vibration mechanism cause the component conveying portion to vibrate in the horizontal direction. The elastic member for vertical vibration and the second The vibration in the vertical direction to the component conveyance section in the vibration mechanism so as to impart,
A plurality of the horizontal vibration elastic members are provided in the component conveying direction, and each of the fixed position to the intermediate vibrating body and the fixed position to the base or upper vibrating body is on the same horizontal line forming a predetermined angle with the component conveying direction. And the vibration type component conveying apparatus arranged so that the positional relationship between the two fixed positions is alternately switched in the component conveying direction.
A vibrating component having a guide function so that the direction of displacement in a direction orthogonal to the component conveying direction and the horizontal plane with respect to deformation in the component conveying direction of the elastic member for horizontal vibration has the same direction. Conveying device.
2. The vibration type component conveying apparatus according to claim 1, wherein at least one of the elastic members for horizontal vibration is arranged so as to be orthogonal to the component conveying direction and the other is not orthogonal.
2. The vibration type component conveying apparatus according to claim 1, wherein the horizontal vibration elastic members are arranged so as not to be orthogonal to the component conveying direction.
4. The vibration type component conveying apparatus according to claim 1, wherein a natural frequency of the elastic member for horizontal vibration is made different between a horizontal direction and a vertical direction.
The vibration type component conveying apparatus according to any one of claims 1 to 4, wherein the horizontal vibration elastic member has a vertical rigidity higher than a horizontal rigidity.
Each excitation mechanism is composed of an electromagnet and a movable iron core, a reference waveform generating means for generating a reference waveform of an applied voltage in an applied voltage setting circuit to one of the electromagnets, and an amplitude with respect to the reference waveform Waveform amplitude adjusting means for adjusting is provided, and the applied voltage setting circuit for the other electromagnet is generated by the phase difference adjusting means for generating a waveform having a predetermined phase difference with respect to the reference waveform, and the phase difference adjusting means 6. The vibration type component conveying apparatus according to claim 1, further comprising a waveform amplitude adjusting unit that adjusts an amplitude with respect to the waveform.