JP3684639B2 - Wave washer assembly equipment - Google Patents

Description

[0001]
【Technical field】
The present invention relates to an apparatus for assembling wave-shaped washers one by one to an assembly.
[0002]
[Prior art]
For example, as shown in FIG. 10, an electric motor or the like uses a wave-shaped washer 8 that is thin and bent in a wave shape as an assembly part, and these are assembled one by one. Since the wave-shaped washer 8 is generally mass-produced, it is assembled after being separated and collected one by one from a number of produced washers.
[0003]
For example, as shown in FIG. 11, the washer is assembled and separated by a vibrating parts feeder 9 in which a large number of washers 8 are spread apart in an overlapping state, and the operator collects them one by one. ing.
[0004]
[Problems to be solved]
However, the conventional wave washer assembly work has the following problems.
That is, in the conventional wave washer assembling work, as described above, the work of separating and taking out one sheet from each of the many washers 8 is performed manually. Therefore, a lot of man-hours are required for the work of separating and collecting the washers 8 one by one, and the production efficiency of the assembly is inferior. In addition, since the washer 8 is thin and light, if it is accidentally overlapped with each other, the work of separating it becomes a troublesome work.
[0005]
On the other hand, there is a method in which washers stacked in advance are subjected to a magnetic field by a permanent magnet or an electromagnet from the side surface and the washers are repelled and separated. However, in this method, since residual magnetism remains in the washer, it may not be able to be assembled into the assembly as it is. Therefore, in this case, it is necessary to provide a demagnetization step after separating the washer, which cannot contribute to the improvement of the production efficiency of the assembly.
[0006]
The present invention has been made in view of such conventional problems, and it is an object of the present invention to provide a wave washer assembling apparatus capable of efficiently separating and assembling a washer having a wave shape without manual intervention. is there.
[0007]
[Means for solving problems]
The invention of claim 1 is a washer storage device for storing a large number of wave-shaped washers,
A rotary table provided with a plurality of the washer reservoirs;
A vibration exciter for vibrating the washer stored in the washer storage device to align the washer vertically;
It consists of a washer assembling machine that collects the aligned washers one by one and assembles them to the assembly.
The washer storage machine includes a receiving plate for stacking washers having a wave corresponding to the wave shape of the washer, and a storage pole standing on the rotary table through the receiving plate,
The storage pole has an outer shape in which a washer is loosely fitted, and has an air outlet opening in the shaft wall of the storage pole in communication with an air supply path provided therein.
The vibration exciter has a vibration driving unit and a vibration arm that applies vibration to the receiving plate of the washer reservoir,
The washer assembling machine includes a suction chuck for sucking and collecting the washers aligned with the receiving plate one by one, an air feeder for feeding pressurized air into the air supply path of the storage pole, A wave washer assembling apparatus.
[0008]
The most notable aspect of the present invention is that it has the vibration exciter for aligning the washers and the washer assembly machine for separating and assembling the aligned washers one by one. That is, a large number of stored washers are first arranged in the vertical direction by vibration, and are then suctioned under reduced pressure to separate and collect one by one.
[0009]
Next, the effects of the present invention will be described.
In the wave washer assembling apparatus of the present invention, when a large number of washers are separated and assembled to an assembly, first, a large number of washers are inserted into a storage pole in the washer reservoir and the receiving plate Stack on top. At this time, a number of washers stored in the washer storage device have their waves directed in an arbitrary direction and are not aligned in the vertical direction.
[0010]
Next, by rotating the rotary table, the washer storage device storing a large number of washers is positioned at a position where it can be engaged with the vibration exciter. Next, the vibration arm of the shaker is engaged with the receiving plate of the washer storage device, and is vibrated by the vibration driver.
[0011]
Here, the receiving plate receiving a large number of washers has a wave corresponding to the wave shape of the washer. Therefore, a large number of washers stacked and stored on the receiving plate vibrate as the receiving plate vibrates, and the wave positions of the respective washers are aligned in the vertical direction in accordance with the wave position of the plate.
[0012]
Next, by rotating the rotary table again, the washer storage device storing a number of aligned washers is moved to a position where it can engage with the air feeder in the washer assembly machine. Next, compressed air is fed into the air supply path of the storage pole by the air feeder of the washer assembling machine. Next, the suction chuck sucks the top end of the stored washers under reduced pressure, pulls it upward, and removes it from the storage pole.
[0013]
At this time, in the storage pole, the compressed air sent from the air feeder blows out from the air outlet. Therefore, the washers are always separated and pulled up one by one. In other words, since the washer is thin and lightweight, there may be a case where the washer sucked by the suction chuck and several washers located below the same are pulled together and lifted. The uppermost washer and the lower washer are reliably separated by the air blown out from the outlet.
[0014]
Next, the one washer collected by the suction chuck is transferred to the assembly place of the assembly. Next, the washer is assembled at the assembly location by releasing the vacuum state of the suction chuck.
By repeating the above-described washer collection and assembling operation by the suction chuck, the washer is assembled to the object to be assembled one after another. This assembling work can be continued efficiently without relying on manpower until the washer stored in the washer storage device is exhausted.
[0015]
In addition, a number of washers are stored in advance in another washer storage device provided on the rotary table, and after the washer is aligned by the vibration exciter, one by one by the washer storage device. By assembling the washer to the workpiece, the washer can be assembled continuously, and the efficiency can be further increased.
[0016]
Therefore, according to the present invention, it is possible to obtain a wave washer assembling apparatus that can efficiently separate and assemble a washer having a wave shape without manual intervention.
[0017]
According to a second aspect of the present invention, the suction chuck preferably has a plurality of suction pipes for sucking the upper surface of the washer. As a result, a plurality of locations in the washer can be adsorbed without interfering with the storage pole, and the washer can be reliably held.
[0018]
According to a third aspect of the present invention, a plurality of the air outlets are provided in different directions on the shaft wall of the storage pole, and the air outlets are inclined downward toward the outer periphery of the storage pole. It is preferable to have a descending jet port that rises and a rising jet port that is inclined upward. As a result, air is ejected in the descending direction and the ascending direction from the descending ejection port and the ascending ejection port, respectively. Therefore, the overlapping washers are given a force in the vertical direction by the respective blown air. Therefore, the washer can be more reliably separated.
[0019]
According to a fourth aspect of the present invention, the storage pole has a communication groove provided on an axial wall thereof in communication with the opening of the air jet port and provided along the axial direction of the storage pole. preferable. As a result, the air blown out from the air outlet is suppressed from being dispersed in the left-right direction, and is reliably blown out toward the inner diameter end of the washer. Therefore, the washer can be more reliably separated.
[0020]
According to a fifth aspect of the present invention, the washer assembling machine preferably has an elevator for raising the receiving plate in accordance with the remaining amount of the washer. As a result, when the remaining amount of the washer stored in the washer storage device decreases, the entire remaining washer can be moved above the storage pole, and the suction sampling operation by the suction chuck can be easily performed. can do.
[0021]
Further, as in the invention of claim 6, the receiving plate is preferably supported by an elastic material. As a result, the receiving plate can be smoothly vibrated by the vibrator. For example, a spring can be used as the elastic material.
[0022]
According to a seventh aspect of the present invention, the storage pole has an opening of the air supply path at a lower end thereof, while the air feeder is in contact with the opening of the air supply path. It is preferable that a connecting portion is provided and the connecting portion can be moved up and down. As a result, the air feeding device can be connected very easily by simply bringing the connecting portion into contact with the storage pole of each washer storage device that is sequentially rotated by the rotation of the rotary table. Can do.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Exemplary Embodiment A wave washer assembling apparatus according to an exemplary embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 1, the wave washer assembling apparatus 1 of this example includes a washer reservoir 2 that stores a large number of wave-shaped washers 8 (see FIG. 10), and a rotary table 3 that includes a plurality of washer reservoirs 2. And the vibration exciter 4 for vibrating the washer 8 stored in the washer storage device 2 to align the washer 8 in the vertical direction, and the aligned washers 8 are collected one by one and assembled to the assembly 88. And a washer assembling machine 5 to be attached. In this example, the assembly 88 is carried into the assembly position by the conveyor 87, and is carried out after the assembly.
[0024]
As shown in FIGS. 2 to 4, the washer storage device 2 has a washer stack receiving plate 21 having a wave portion 211 (FIG. 4) corresponding to the wave shape of the washer 8, and rotates through the receiving plate 21. The storage pole 22 is erected on the table 3.
[0025]
As shown in FIGS. 2, 5, and 6, the storage pole 22 has an outer shape in which the washer 8 is loosely fitted, and communicates with an air supply path 221 provided inside the storage pole 22, so that the shaft of the storage pole 22 is provided. Air outlets 222 and 223 are formed in the wall.
As shown in FIGS. 5 and 6, four air outlets 222 and 223 are provided on the shaft wall of the storage pole 22 in different directions.
[0026]
Two of them are descending jets 222 inclined downward in the outer circumferential direction of the storage pole 22 as shown in FIG. 6 (a), and the other two are raised upwards as shown in FIG. 6 (b). It is an ascending jet outlet 223 that is inclined. As shown in FIG. 5, the descending outlet 222 and the ascending outlet 223 are alternately arranged at 45 ° intervals.
Further, as shown in FIG. 7, the air supply path 221 has an opening 229 at the lower end portion of the storage pole 22 that penetrates and protrudes below the rotary table 3.
[0027]
Further, as shown in FIGS. 5 and 6, the storage pole 22 has a communication groove 224 that communicates with the opening of the air jets 222 and 223 on the shaft wall and is provided along the axial direction of the storage pole. Have. As shown in FIGS. 5 and 6, the communication groove 224 is a groove having an arcuate cross section, and is provided so as to penetrate the upper portion of the storage pole 22.
[0028]
As shown in FIGS. 2 and 3, the receiving plate 21 of the washer storage device 2 is disposed on the rotary table 3 through the lower seat plate 25, the springs 27 and 28, and the upper seat plate 24 so as to be lifted and lowered. . The receiving plate 21 and the upper seat plate 24 pass through the storage pole 22 and the guide pole 26 disposed on the rotary table 3, and are configured to move up and down along the two poles 22 and 26. It is.
[0029]
Next, as shown in FIG. 1, the rotary table 3 is a disk-shaped table centered on a rotary shaft 31, and 12 sets of washer reservoirs 2 are disposed on the outer periphery thereof. As shown in FIGS. 1 and 8, notches 32 for passing the lifting arms 532 of the lifting and lowering machine 53 in the washer assembling machine 5 to be described later are provided on both sides where the respective washer storage machines 2 are disposed.
[0030]
Next, as shown in FIGS. 2 and 3, the vibration exciter 4 includes a vibration driving unit 41 and a vibration arm 42 that vibrates the receiving plate 21 of the washer storage device 2.
The vibration drive unit 41 is composed of an air cylinder, and is configured to move the vibration arm 42 up and down to an upper standby position that does not interfere with the washer storage device 2. Further, as shown in FIG. 3, the vibrating arm 42 is formed in a U shape that can be engaged with both sides of the receiving plate 21.
[0031]
Next, as shown in FIG. 7, the washer assembling machine 5 pressurizes the suction chuck 51 that collects the washer 8 aligned with the receiving plate 21 by vacuum suction one by one and the air supply path 21 of the storage pole 22. An air feeder 52 for feeding air and an elevator 53 for raising the receiving plate 21 according to the remaining amount of the washer 8 in the washer assembling machine 2 are provided.
[0032]
As shown in FIG. 7, the suction chuck 51 is disposed in the mobile robot 50 and is movable up and down and left and right. Further, the suction chuck 51 has two suction pipes 511 for sucking the upper surface of the washer 8, as shown in FIGS. Each suction pipe 511 is configured such that its suction hole 512 is connected to a suction machine (not shown) via a preliminary chamber 514 and a suction hose 513, and the washer 8 is suctioned and released by the suction machine. It is.
[0033]
In addition, as shown in FIG. 7, the air feeder 52 has a connecting portion 521 that contacts the opening 229 of the air supply path 221 at the lower end of the storage pole 22. The connecting portion 521 has an air inlet hole 522 that communicates with the air supply path 221 of the storage pole 22 and is connected to a compressor (not shown) via an air hose 523. The connecting portion 521 is provided so as to be moved up and down by an air cylinder 524.
[0034]
Further, as shown in FIG. 7, the elevator 53 includes a lift arm 532 that engages from below the receiving plate 21, and a lift air cylinder 531 that lifts and lowers the lift arm 532. As shown in FIG. 8, the raising arm 532 has the same shape as the vibrating arm 42 in the vibration exciter 4.
[0035]
Next, the effect in this example is demonstrated.
In the wave washer assembling apparatus 1 of this example, as shown in FIG. 1, when the locations where the respective washer reservoirs 2 are located at positions P1 to P12, the washer 8 is replaced with the washer reservoir 2 at positions P1 to P8. At position P9, the washer 8 is vertically aligned by the vibrator 4, and at the position P12, the washers 8 are collected one by one and assembled to the assembly 88. Further, the rotary table 3 rotates by one position in the clockwise direction when the washer 8 of the washer reservoir 2 located at the position P12 is lost.
[0036]
This will be described in detail below.
First, at positions P1 to P12, a large number of washers 8 are supplied to the empty washer storage device 2. This supply operation can be easily performed by preparing a washer 8 that has been stabbed and stored in advance, and the operator makes the tip of the supply rod contact the tip of the storage pole 22 and turns it upside down. Can do. This supply operation may be performed by a separate supply device without relying on human hands.
[0037]
Further, the supply operation may be performed on the plurality of empty washer reservoirs 2 at once, or may be performed several times, but at least for the washer reservoir 2 at position P8, Supply washer 8.
At this time, a large number of washers 8 stored in the washer storage device 2 have their waves directed in an arbitrary direction and are not aligned in the vertical direction.
[0038]
Next, at the position P9 where the vibration exciter 4 is disposed, a number of washers 8 stored in the washer 2 moved from the position P8 are aligned in the vertical direction. That is, at the position P9, the vibration arm 42 of the vibration exciter 4 is lowered and engaged with the receiving plate 21 of the washer storage device 2. Next, when driven by the vibration driver 41, the receiving plate 21 engaged with the vibration arm 42 vibrates in the vertical direction.
[0039]
Here, the receiving plate 21 receiving a large number of washers 8 has a wave portion 211 corresponding to the wave shape of the washers 8. Therefore, a large number of washers 8 stacked and stored on the receiving plate 21 vibrate as the receiving plate 21 vibrates, and align the wave position of each washer 8 with the wave position of the receiving plate 21 in the vertical direction. To do.
[0040]
Next, at the position P12 where the washer assembling machine 5 is disposed, the washer 8 stored in alignment with the washer assembling machine 2 moved from positions P9 through P10 and P11 is separated one by one. The sample is collected and assembled to the attachment 88. That is, at the position P12, first, the connecting portion 521 of the air feeder 52 is raised to connect the air feeder 52 and the storage pole 22.
[0041]
Next, compressed air is fed into the air supply path 221 of the storage pole 22 by the air feeder 52. Next, the suction chuck 51 sucks and decompresses the uppermost one of the stored washers 8 and pulls it upward to remove it from the storage pole.
[0042]
At this time, in the storage pole 22, the compressed air sent from the air feeder 51 is blown out from the air outlets 222 and 223. Therefore, the washers 8 are always separated one by one and pulled up. That is, even when the washer 8 sucked by the suction chuck 51 and some of the washers 8 positioned below the washer 8 are pulled together and pulled up, the uppermost end is blown by the air blown out from the air outlets 222 and 223. The washer 8 and the washer 8 below the washer 8 are reliably separated.
[0043]
Next, one washer 8 collected by the suction chuck 51 is transferred to a place where the attachment 88 is assembled. Next, the washer 8 is assembled at the assembly location of the assembly 88 by releasing the reduced pressure state of the suction chuck 51.
The washer 8 is assembled to the assembly 88 one after another by repeating the collection and assembly operation of the washer 8 by the suction chuck 51.
[0044]
Further, the washer assembling machine 5 has the elevator 53. Therefore, when the remaining amount of the washer 8 stored in the washer storage device 2 decreases, the entire remaining washer 8 can be moved above the storage pole 22 and the suction sampling operation by the suction chuck 12 can be performed. Can be easily.
[0045]
This assembling work is continued until the washer 8 stored in the washer storage device 2 is exhausted. When the washer 8 disappears, the rotary table 3 is rotated by one position. Next, at positions P9 and P12, the above operation is repeated for the newly moved washer assembling machine 2. Thereby, it is possible to perform the washer assembling work continuously and efficiently.
[0046]
Therefore, according to this example, it is possible to obtain a wave washer assembling apparatus that can efficiently separate and assemble a washer having a wave shape without manual intervention.
[Brief description of the drawings]
FIG. 1 is an explanatory plan view showing a configuration of a washer assembling machine according to an embodiment.
FIG. 2 is a partially cutaway side view showing configurations of a washer reservoir and a vibration exciter in the embodiment.
FIG. 3 is an explanatory plan view showing configurations of a washer reservoir and a vibration exciter in the embodiment. Figure.
FIG. 4 is a perspective view of a receiving plate in the embodiment.
FIG. 5 is a plan view of a storage pole in the embodiment.
6 is a cross-sectional view of the storage pole shown in FIG. 5 (a) taken along line AA, and (b) is a cross-sectional view taken along line BB.
FIG. 7 is a partially cutaway side view showing configurations of a washer storage device and a washer assembling machine in the embodiment.
FIG. 8 is an explanatory plan view showing configurations of a washer storage device and a washer assembling machine in the embodiment.
FIG. 9 is a bottom view of the suction chuck in the embodiment.
FIG. 10 is a perspective view of a washer having a wave shape in a conventional example.
FIG. 11 is a perspective view of a parts feeder in a conventional example.
[Explanation of symbols]
1. . . Wave washer assembly equipment,
2. . . Washer reservoir,
21. . . Receiving plate,
22. . . Storage pole,
3. . . Rotating table,
4). . . Shaker,
41. . . Vibration drive,
42. . . Vibrating arm,
5. . . Washer assembly machine,
51. . . Suction chuck,
511. . . Suction pipe,
52. . . Air feeder,
521. . . Connecting part,
53. . . Elevator,
531. . . Air cylinder,
532. . . Ascending arm,

Claims (7)

A washer reservoir for storing a number of wave-shaped washers;
A rotary table provided with a plurality of the washer reservoirs;
A vibration exciter for vibrating the washer stored in the washer storage device to align the washer vertically;
It consists of a washer assembling machine that collects the aligned washers one by one and assembles them to the assembly.
The washer storage machine includes a receiving plate for stacking washers having a wave corresponding to the wave shape of the washer, and a storage pole standing on the rotary table through the receiving plate,
The storage pole has an outer shape in which a washer is loosely fitted, and has an air outlet opening in the shaft wall of the storage pole in communication with an air supply path provided therein.
The vibration exciter has a vibration driving unit and a vibration arm that applies vibration to the receiving plate of the washer reservoir,
The washer assembling machine includes a suction chuck for sucking and collecting the washers aligned with the receiving plate one by one, an air feeder for feeding pressurized air into the air supply path of the storage pole, A wave washer assembling apparatus characterized by comprising: 2. The wave washer assembling apparatus according to claim 1, wherein the suction chuck has a plurality of suction pipes for sucking an upper surface of the washer. 3. The descending jet according to claim 1, wherein a plurality of the air jets are provided in different directions on the shaft wall of the storage pole, and the air jets are inclined downward in the outer peripheral direction of the storage pole. And a wave washer assembling apparatus characterized by having an ascending jet port that is inclined upward. 4. The storage pole according to claim 1, wherein the storage pole has a communication groove provided on an axial wall of the storage pole and provided along the axial direction of the storage pole. A wave washer assembling device. The wave washer assembling apparatus according to any one of claims 1 to 4, wherein the washer assembling machine includes an elevator for raising the receiving plate in accordance with a remaining amount of the washer. 6. The wave washer assembling apparatus according to claim 1, wherein the receiving plate is supported by an elastic material. 7. The storage pole according to claim 1, wherein the storage pole has an opening of the air supply path at a lower end thereof, while the air feeder is in contact with the opening of the air supply path. A wave washer assembling apparatus having a connecting part in contact with the connecting part and capable of moving up and down.

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