JP3599212B2 - Swing-type part aligning machine and its vibration-proofing method - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an oscillating-type part aligning machine suitable for aligning electronic parts, precision mechanical parts, and the like (parts) at predetermined positions, and a vibration isolating method thereof.
[0002]
[Prior art]
For example, when relatively small parts such as electronic parts or precision machine parts (parts) are handled in large quantities, if these large parts are stored in a storage container such as a corrugated cardboard case, then It is difficult to handle such as taking out and assembling parts and it is easy to cause accidents such as breakage, and it is difficult to efficiently manage production in the manufacturing process of products incorporating these parts It becomes.
[0003]
As an example, in precision instruments such as ICs and watches, the parts that make them up, except for a part, are almost mass-produced, and the number of those parts handled in the manufacturing process and the distribution process is enormous. In addition, the production of the product is a line work, and in each step of the line work, parts such as frames and packages of a predetermined lot number need to be supplied in an aligned state. For example, if they are aligned manually, productivity is poor.
[0004]
Therefore, a large number of small parts are automatically aligned on a predetermined parts alignment pallet by a swinging type parts aligning machine, and supplied to a subsequent work process or the like.
The oscillating parts aligning machine is mounted on a rectangular plate-shaped vibration table that vibrates in a predetermined direction, and a rectangular plate-shaped parts aligning pallet on which parts are aligned, and a longitudinal direction of the parts aligning pallet. A pair of dust collecting device-like machine collection pallets provided at both ends are provided, and the vibration table is provided on a swing table, and the swing table is arranged at a constant cycle with respect to a horizontal plane. It is set to swing by a predetermined angle.
[0005]
In other words, when the swing table is swung, the parts alignment pallet mounted on the vibration table is also swung. At this time, of the large number of parts diffused and supplied on the parts alignment pallet, some of the parts are vibrated. The table is configured to be moved into a mold formed on the component alignment pallet by the vibration energy of the table, and the mold has a shape corresponding to the shape of the part, for example, a concave portion.
[0006]
Also, of the parts diffused on the parts alignment pallet, those parts that have not been moved into the formwork are rocked again and diffused on the parts alignment pallet. Since the part reciprocates at both end positions in the longitudinal direction of the component arrangement pallet, a recovery pallet is provided so that the parts do not fall off the component arrangement pallet at both end positions.
A large number of parts aligned on the component alignment pallet as described above are supplied to the next operation, for example, an assembly process in a flow operation, for each of the component alignment pallets.
[0007]
As the environmental conditions for installing the oscillating parts aligning machine, various equipment such as precision machines are installed around the oscillating parts aligning machine, and the oscillating parts when the vibration table of the oscillating parts aligning machine vibrates. When the entire alignment machine vibrates and the vibration is propagated to various peripheral devices constituting an automatic machine equipped for assembly work, for example, accuracy such as a reading operation of an image processing device is required. In some cases, preventing the propagation of the vibration may be an indispensable condition in designing the oscillating-type part aligning machine.
[0008]
[Problems to be solved by the invention]
For this reason, some measures have been taken in the past, such as setting the weight of the stand provided at the bottom of the oscillating parts alignment machine to be larger than necessary, but some measures have been taken. And a fundamental measure was requested.
[0009]
SUMMARY OF THE INVENTION It is an object of the present invention to provide an oscillating type part aligner capable of reliably and effectively preventing the vibration of a vibration table from propagating to the surroundings, and a vibration proof method thereof.
[0010]
[Means for Solving the Problems]
The object is to swing a part alignment pallet for aligning a desired part in both directions at a desired angle with respect to a horizontal direction, and to vibrate the part alignment pallet in a desired amplitude direction. And a vibrating means provided in correspondence with the vibration source for generating a vibration operation, and for vibrating the parts alignment pallet in the amplitude direction. A vibrating member vibrated by the vibration source, and having the same mass as the vibrating member, vibrating at a timing synchronized with the vibrating operation of the vibrating member and in directions opposite to each other with respect to the operation direction of the vibrating member. A balancer section having a possible second vibration member, wherein the vibration energy of the vibration member is offset by the vibration energy of the second vibration member. It is achieved me. In an embodiment of the oscillating parts aligning machine according to claim 1, a plurality of sets of a vibrating means main body including the vibrating source and the vibrating member vibrated by the vibrating source are provided. In addition, it is preferable that the balancer section is provided corresponding to each set of the vibrating means main bodies. On the other hand, the object is to provide a swing unit for swinging a component alignment pallet for aligning a desired part in both directions at a desired angle with respect to a horizontal direction, a vibration source generating a vibration operation, and a vibration source corresponding to the vibration source. A vibration member provided with a vibration member for vibrating the component alignment pallet in the amplitude direction by being vibrated by the vibration source, and a balancer portion having a second vibration member having the same mass as the vibration member; A method for isolating an oscillating type part aligning machine comprising: synchronizing the balancer section with the oscillating operation of the oscillating member, and in opposite directions with respect to the operating direction of the oscillating member. The method is also achieved by a vibration isolating method for an oscillating type part aligning machine, wherein the vibration energy of the vibration member is offset by the vibration energy of the second vibration member.
[0011]
In the oscillating type part aligning machine according to claim 1, the oscillating member has the same mass as the vibrating member, and is synchronized with the oscillating operation of the oscillating member and in the operation direction of the oscillating member. A balancer unit that operates in the opposite direction is provided, and vibration energy of the vibration member is canceled by vibration energy of a second vibration member of the balancer unit.
[0012]
In the oscillating parts aligning machine according to the second aspect, a plurality of sets of vibrating means main bodies each including the vibrating source and the vibrating member vibrated by the vibrating source are provided. A plurality of the component aligning pallets can be used at a time corresponding to the means main body, and the vibration energy of the vibration member is offset by the vibration energy of the second vibration member of the balancer portion provided respectively. .
[0013]
4. The vibration isolating method for a swing type part aligning machine according to claim 3, wherein the balancer unit having the same mass as the vibration member is moved at a timing synchronized with the vibration operation of the vibration member. Operating in opposite directions, the vibration energy of the vibration member is canceled by the vibration energy of the second vibration member of the balancer section.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of a swing type part aligner according to the present invention will be described with reference to the drawings.
FIG. 1 shows an overall schematic view of an oscillating parts aligning machine 1 to which the present invention is applied. As can be understood from the figure, the oscillating parts aligning machine 1 has an appropriate weight and weight. On the plate-like base 3 having a thickness, the rocking means 5 is rocked by the rocking means 5 in both directions (up and down directions in FIG. 1) at a desired angle with respect to the horizontal direction. A pair of plate-like component aligning pallets 7, 7 and a pair of vibrating means 9, 9 for vibrating the pair of component aligning pallets 7, 7 in both directions of their own width (left and right directions in FIG. 1) are provided. (See FIG. 3).
[0015]
In this case, the vibration operation direction of the component alignment pallet 7, that is, the amplitude direction, can be appropriately selected, and the amplitude direction propagated from the vibration means 9 to the component alignment pallet 7 is set to correspond to the amplitude direction. It should be set with.
Further, in order to align parts such as electronic parts and precision mechanical parts, concave parts having a desired shape and a desired depth are formed on the part aligning pallet 7, and the configuration, function and the like are conventionally known. Therefore, the description is omitted.
[0016]
The oscillating means 5 has an oscillating pulse motor 11 serving as an oscillating drive source, and an oscillating shaft 13 to which an output of the oscillating pulse motor 11 is transmitted and which rotates around its own axis. The oscillating pulse motor 11 is mounted on a motor mounting stay 15 which is suspended from a base 14 fixed on the base 3 with bolts or the like. A horizontal stop position detection switch 17 used for shifting from the state to the horizontal state is provided.
[0017]
Further, a pair of support members 19, 19 are suspended and fixed by bolts or the like at appropriate intervals along the axial direction of the swing shaft 13 on the gantry 3. The support members 19, 19 The swinging shaft 13 is rotatably inserted, and provided with swinging shaft holders 21, 21 to be supported. Further, the swinging shaft 13 is moved from the lower surface of a later-described vibrating portion base 23 to the swinging shaft. 13 are connected and fixed to the four legs 25, 25, 25, 25 protruding in the arrangement direction of the swing shaft 13 so that each member on the vibration unit base 23 including the component alignment pallet 7 Is swung with the turning operation of.
[0018]
The output shaft of the oscillating pulse motor 11 is provided with an oscillating shaft drive pulley 27. The oscillating shaft drive belt 29 transmits the rotative driving force of the oscillating shaft drive pulley 27 through the oscillating shaft 13. The motor mounting stay 15 is provided with an idler 33 so as to be rotatable so as to be connected to the fixed swing bearing moving pulley 31 and to properly connect the rotational driving force thereof.
[0019]
The one end position (the right side in FIG. 1) of the swing shaft 13 in the axial direction is in a swinging state, that is, a position parallel to the horizontal direction or one side (for example, swinging). When viewed from the axial direction of the dynamic shaft 13, the position on the right side is the position that is maximally inclined toward the back (in FIG. 1), or the position that is maximally inclined toward the other side (left side). A switch unit 35 for detection is provided, and the limit angle of the swing angle of the swing shaft 13 is set within the limit angle of the tilt angle with respect to the horizontal plane (preset) according to the detection output from the switch unit 35. Is controlled so that
[0020]
Next, as can be understood from FIG. 2 in which the upper part is shown from the II line in FIG. 1 and FIG. 3 in which the arrow I in FIG. A pair of dust collecting container-shaped collection pallets 37 are provided in the longitudinal direction of the component alignment pallet 7 (in FIG. 1, on the near side and on the back side of the paper).
[0021]
The component alignment pallets 7, 7 are detachably attached to a vibration table (vibration member) 39, which is a component of the vibration means 9, and a vibration table 49 (second vibration member), which forms the balancer unit 2. Attached to.
In this case, the collection pallet 37 prevents the parts from dropping off the component alignment pallet 7 when the component alignment pallet 7 is rocked by the rocking means 5 together with the vibration table 39 or the vibration table 49. However, since its configuration and function are conventionally known, detailed description will be omitted.
[0022]
Here, the vibration means 9 has a vibration servomotor (vibration source) 41 provided below the plate-shaped vibration portion base 23 which is rocked by the rocking shaft 13 via the leg portion 25, The vibration servomotor 41 is fixed to the vibration base 23 by being supported by a mounting member 43 vertically extending downward from the lower surface of the vibration base 23.
Therefore, the balancer unit 2 in this embodiment is mainly configured by the vibration table 49 and the vibration servomotor 41, and the vibration unit main body 4 is mainly configured by the vibration servomotor 41 and the vibration table 39. ing.
[0023]
On the upper surface of the vibrating portion base 23, four vibrating shaft support portions 47, 47, 47, 47 are suspended and fixed by bolts or the like, and the vibrating tables 39, 49 are respectively arranged in the horizontal direction in FIG. When reciprocating and vibrating, a slide shaft (vibration shaft) 45 for guiding and supporting the linear motion of the vibration tables 39 and 49 is supported and fixed by the vibration shaft support portions 47, 47, 47 and 47. I have.
[0024]
Further, the vibration shaft 45 is inserted into a pair of cylindrical slide portions 51, 51, 53, 53 provided on the lower surfaces of the vibration tables 39, 49, respectively, and follows the vibrations of the vibration tables 39, 49, The slide portions 51, 51, 53, 53 are set so as to be slidable along the axial direction of the vibration shaft 45.
[0025]
Further, the vibration tables 39 and 49 are each connected to a vibration generating mechanism 55, and the vibration generating mechanism 55 is provided with a passive pulley 59 to which an output of the vibration servomotor 41 is transmitted via a driving belt 57. The passive pulley 59 is attached to a drive shaft 65 rotatably supported by bearings 61 and 63 at both ends in the axial direction.
[0026]
The rotating operation of the drive shaft 65 includes a right eccentric cam mechanism 67 that reciprocates (vibrates) the vibration table 39 along the axial direction of the vibration shaft 45 and a vibration table 49 that moves the vibration table 49 along the axial direction of the vibration shaft 45. The right eccentric cam mechanism 67 and the left eccentric cam mechanism 69 convert the rotational motion of the vibration servomotor 41 into a linear motion. These are output to the vibration tables 39 and 49, respectively.
[0027]
That is, in the right eccentric cam mechanism 67 and the left eccentric cam mechanism 69, a substantially cylindrical eccentric cam is provided in the housing H, and the eccentric cam has a desired distance in the radial direction from the axial center position. A fitting hole into which the drive shaft 65 is fitted is formed through at an eccentric position, and a bearing provided in the housing H is slidably provided on the outer peripheral side surface of the eccentric cam. Touched.
[0028]
One end of the joint rod end is fixed to the housing H of the eccentric cam, and the arm is free to move freely in the rotational direction via a spherical bearing on the other end. The arm members are connected to connecting members 71 and 73 connected to the vibration tables 39 and 49, respectively, in a perpendicular direction.
[0029]
Therefore, when the drive shaft 65 rotates around its own axis, the joint rod end reciprocates in its own longitudinal direction by the action of the eccentric cam, and accordingly, the vibration tables 39 and 49 connected to the connecting member. Is also reciprocated along its own width so that it vibrates, and with the vibration of the vibration tables 39 and 49, the component alignment pallets 7 and 7 are moved in the width direction (the left and right direction in FIG. 1). Vibration in the amplitude direction
In this case, the distance between the center axis of the drive shaft 65 and the spherical bearing position is changed by a distance corresponding to about twice the distance between the center axis position of the eccentric cam and the fitting hole forming position.
[0030]
Also, the vibration direction of the vibration table 39 and the vibration direction of the vibration table 49 are set so as to be opposite to each other at any time, which is synchronized with the vibration operation of the vibration table 39. By vibrating at the set timing and in the direction opposite to the operation direction of the vibration table 39, the vibration table 39 is realized in a configuration in which the vibrations are horizontally opposed to each other.
[0031]
As described above, in this embodiment, the masses of the vibration table 39 and the vibration table 49 are set to be substantially the same, and their vibration directions are set to be opposite to each other. Therefore, the vibration energy of the vibration table 39 and the vibration energy of the vibration table 49 are canceled each other, and the vibration of the oscillating parts aligning machine 1 can be reliably prevented.
In this case, an experimental result is obtained that even when the frame 3 is vibrated at 1500 rpm in a state where it is not provided, the vibration is hardly transmitted to the vibrating portion base 23.
[0032]
Further, since the two parts alignment pallets 7 can be used at once by the vibration tables 39 and 49, the efficiency of parts alignment work can be improved as compared with the case where one component alignment pallet 7 is used.
It should be noted that, in addition to the vibration table 39 and the vibration table 49, the number of sets of vibration tables that vibrate horizontally and opposed to each other is increased, so that a larger number of component alignment pallets 7 that can be used at one time can be used, and the efficiency of part alignment work is reduced. It is also preferable to further improve.
[0033]
Further, the configuration in which the vibration servomotor 41 and the oscillation pulse motor 11 are employed allows the driving / stopping operation of each motor to be controlled with high precision. There is an advantage that it can be easily incorporated into an automatic assembly line.
[0034]
In this embodiment, the driving sources of the vibration table 39 and the vibration table 49 are shared by the vibration servomotor 41. However, the vibration table 39 and the vibration table 49 may have separate driving sources.
[0035]
Next, another preferred embodiment of the swingable type part aligner according to the present invention will be described with reference to the drawings.
As can be understood from FIG. 4 and FIG. 5 showing the view taken in the direction of the arrow IV in FIG. 4, in this embodiment, only one vibration table 39 to which the component alignment pallet 7 is detachably attached is provided. Below plate 39, a plate-shaped second vibration member 10 having substantially the same mass as vibration table 39 is provided.
[0036]
Further, the vibration generating mechanism 55 employs the integrated eccentric cam mechanism 20 instead of the right eccentric cam mechanism 67 and the left eccentric cam mechanism 69 in the above embodiment, and other configurations are the same as those of the above embodiment. This is substantially the same as the embodiment.
[0037]
That is, in this embodiment, the second vibrating member 10 is not involved in vibrating the component alignment pallet 7, but simply has the vibration energy of the vibration table 39 and the vibration energy that cancels each other. The second vibrating member 10 is driven by a vibration servomotor 41 as a vibration source, and is vibrated by a vibration operation mechanism substantially similar to the vibration table 49 in the above embodiment. Is done.
[0038]
As described above, in this embodiment, the vibration energy of the vibration table 39 is offset by the vibration energy of the second vibration member 10 due to the horizontal opposing vibration between the vibration table 39 and the second vibration member 10. Therefore, vibration of the oscillating parts aligning machine 1 can be reliably prevented.
In addition, since the integrated eccentric cam mechanism 20 is employed, the vibration operations of the vibration table 39 and the second vibration member 10 are almost completely synchronized, and as a result, those vibrations are transmitted to the external environment. This has the advantage that this can be more reliably prevented.
[0039]
A plurality of vibration tables 39 may be provided, and a plurality of second vibration members 10 (balancer units 3) may be provided corresponding to the vibration tables 39. In this case, a plurality of component alignment pallets may be provided. Since 7 is used at a time, there is an advantage that the efficiency of part alignment work can be improved.
[0040]
Next, a preferred embodiment of an anti-vibration method for an oscillating parts aligning machine according to the present invention will be described with reference to the drawings.
In this embodiment, the oscillating type part aligner 1 shown in FIGS. 1, 2 and 3 is used, and at a timing synchronized with the vibration operation of the vibration table 39, the vibration table 39 (vibration table) is used. The vibration table 49 (second vibration member) is set to vibrate (horizontally opposed vibration) in a direction opposite to the operation direction of the member), and the vibration table 39 is a component of the vibration means main body 4. On the other hand, the vibration table 49 is a component of the balancer unit 2.
[0041]
That is, the acceleration vector of the vibration table 39 and the acceleration vector of the vibration table 49 are set to be acceleration vectors having directions opposite to each other, and the masses of the vibration table 39 and the vibration table 49 are substantially the same. It is set to be.
[0042]
Therefore, when the vibration table 39 and the vibration table 49 are both vibrated, the vibration energy of the vibration table 39 and the vibration energy of the vibration table 49 are canceled each other, and the vibration type Vibration energy can be canceled out.
[0043]
As described above, in this embodiment, since the vibration table 39 and the vibration table 49 having substantially the same mass are horizontally opposed to each other, the vibration energies of the vibration table and the vibration table 49 cancel each other. Vibration of the entire part aligning machine 1 is reliably prevented, and transmission of the vibration to the external environment is avoided.
[0044]
Further, since the two parts alignment pallets 7 can be used at once by the vibration tables 39 and 49, the efficiency of parts alignment work can be improved as compared with the case where one component alignment pallet 7 is used.
[0045]
In addition, in addition to the vibration table 39 forming the vibration means main body 4 and the vibration table 49 forming the balancer section 2, a vibration table (vibration means main body 4) is further increased, and the balancer section 2 is provided correspondingly. By adopting, it is also preferable to further improve the efficiency of parts alignment work by using a large number of parts alignment pallets 7 that can be used at one time.
[0046]
The balancer unit 2 is arranged so as to be involved in the vibration operation of the component alignment pallet 7 (see the embodiment of the oscillating parts alignment machine 1), and is involved in the vibration operation of the component alignment pallet 7. Instead, a configuration that simply vibrates (see another embodiment of the oscillating parts aligning machine 1) can be appropriately selected and adopted.
[0047]
【The invention's effect】
As can be understood from the above description, in the oscillating parts aligning machine according to claim 1, the oscillating member has the same mass as the vibrating member, and is synchronized with the oscillating operation of the oscillating member, and A balancer portion that operates in the opposite direction to the operation direction of the member is provided, and the vibration energy of the vibrating member is canceled by the balancer portion, so that the vibration of the vibrating member propagates to the surroundings reliably and effectively. Can be prevented.
[0048]
In the oscillating type part aligning machine according to the second aspect, a plurality of sets of vibration means main bodies each including the vibration source and the vibration member vibrated by the vibration source are provided, and The vibration energy of each vibrating member is canceled by the balancer portions arranged respectively corresponding to the vibrating means main bodies, so that a plurality of parts alignment pallets can be used by a plurality of vibrating means main bodies, and In addition to the specific effect that the alignment workability is improved, it is possible to reliably and effectively prevent the vibration of the vibration member from propagating to the surroundings.
[0049]
4. The vibration isolating method for an oscillating type part aligning machine according to claim 3, wherein the balancer unit having the same mass as the vibrating member is moved at a timing synchronized with the vibrating operation of the vibrating member and in the operating direction of the vibrating member. Are operated in directions opposite to each other, and the vibration energy of the vibrating member is canceled by the balancer portion. Therefore, it is possible to reliably and effectively prevent the vibration of the vibrating member from propagating to the surroundings.
[Brief description of the drawings]
FIG. 1 is an overall schematic configuration diagram of an oscillating parts aligning machine in a preferred embodiment of an oscillating parts aligning machine according to the present invention.
FIG. 2 is a partially omitted configuration diagram of a swinging type part aligning machine that configures an upper part from a line II in FIG. 1;
FIG. 3 is a diagram illustrating a schematic configuration of a vibration generating mechanism, as viewed in the direction of arrow I in FIG. 1;
FIG. 4 is a configuration explanatory view showing a main part of a swing type part aligning machine according to another preferred embodiment.
FIG. 5 is an explanatory view showing an outline of a vibration generating mechanism according to another embodiment, as viewed in the direction of arrow IV in FIG. 4;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Oscillation type part aligning machine 2 Balancer part 4 Oscillation means main body 5 Oscillation means 7 Parts alignment pallet 9 Oscillation means 39 Oscillation table (oscillation member)
41 Vibration servo motor (vibration source)
49 Vibration table (second vibration member)

Claims (3)

A swinging means (5) for swinging a component alignment pallet (7) for aligning desired parts in both directions at a desired angle with respect to the horizontal direction, and the component aligning pallet (7) in a desired amplitude direction; A swing-type part aligning machine (1) having a vibration means (9) for vibrating;
The vibration means (9) is
A vibration source (41) for generating a vibration operation;
A vibration member (39) provided corresponding to the vibration source (41) and vibrated by the vibration source (41) to vibrate the component alignment pallet (7) in the amplitude direction;
Wherein it has the same mass and the vibration member (39), at the timing synchronized with the oscillating motion of the oscillating member (39), and can be vibrated in the opposite directions with respect to the direction of movement of the vibrating member (39), wherein A balancer section (2) having a second vibrating member (49) including a component alignment pallet (7) ;
The oscillating parts aligning machine (1), wherein the vibration energy of the vibration member (39) is offset by the vibration energy of the second vibration member (49). A plurality of sets of vibrating means main bodies (4) each including the vibrating source (41) and the vibrating member (39) vibrated by the vibrating sources (41) are provided. The oscillating parts aligning machine (1) according to claim 1, wherein the balancer sections (2) are provided corresponding to (4). A swinging means (5) for swinging a component alignment pallet (7) for aligning desired parts in both directions at a desired angle with respect to the horizontal direction, a vibration source (41) for generating a vibration operation, and the vibration A vibrating member (39) provided corresponding to the source (41) and vibrated by the vibration source (41) to vibrate the component alignment pallet (7) in the amplitude direction; and the vibrating member (39). A vibrating means (9) having a balancer section (2) having a second vibrating member (49) having the same mass of the parts aligning pallet (7 ); A method for preventing vibration of the vibration member, wherein the balancer portion (2) is synchronized with a vibration operation of the vibration member (39), and is operated in directions opposite to each other with respect to a movement direction of the vibration member (39). The vibration member (39) is vibrated. Vibration reduction method of swinging type parts alignment device, characterized in that the offset by the vibration energy of the energy second vibrating member (49).

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