JP3013707U - Swing-type parts aligner - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an oscillating type part aligner having few uncertainties during vibration and capable of easily adjusting the frequency and the vibration range. [Structure] A second slide shaft provided to move the vibration table 4 for aligning parts along the first slide shaft 23 and to orthogonally intersect the first slide shaft 23 with the first slide shaft 23. The second slide shaft 42 is fixed to the swing table 8 which swings the vibration table 4, and the motor M for vibrating the vibration table 4 is fixed. Motor M
An oscillating part aligner configured so that the vibration table 4 oscillates in a rotating manner in a horizontal plane by the rotation of the.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a swing type parts aligning machine for aligning electronic parts, precision machine parts and the like on a parts alignment pallet.

[0002]

[Prior art]

 When a large amount of small parts such as electronic parts and precision machine parts are handled, for example, if they are stored in a corrugated ball case in a loose manner, it is difficult to handle and accidents such as breakage easily occur, and efficient production control is performed in the manufacturing process. Hateful. As a specific example, when describing precision equipment such as ICs and watches, these parts (parts) are mass-produced except for special ones, and the number of parts handled in the manufacturing process and distribution process is also handled. It will be a huge amount. For example, IC manufacturing is performed in a line work, and in manufacturing, necessary parts such as a predetermined number of lots of frames and packages must be supplied in an aligned state for each process. However, it is not possible to manually align a huge amount of small parts one by one in terms of work efficiency.

Therefore, conventionally, small parts have been arranged on a parts alignment pallet by an oscillating parts aligner and supplied to a manufacturing process. Although there are various configurations of the swing type parts aligning machine, a configuration example will be described below with reference to FIG. The rocking type part aligner 1 shown in FIG. 5 will be described. The structure is such that an aligning pallet 2 for aligning desired parts and a collecting pallet 3 which can be called a dust removing shape are mounted on a vibrating table 4. The collection pallet 3 on one end side of the alignment pallet 2 is supported by the stopper 5, the other end side is sandwiched by another collection pallet 3, and the fixed lever 7 biased in the direction of the stopper 5 by the compression spring 6 is opened and closed (arrow). (Operation in the directions A and B).

The vibration table 4 is adapted to vibrate in a direction along a vertical plane on the paper in FIG. 5, in other words, from the front side to the back side in FIG. Further, the vibrating table 4 is configured to swing in the lower swing table 8 and in the directions of arrows C and D in the figure, and the swing table 8 is connected to the swing drive section 11 via the connecting section 9. Are linked to. The swing drive unit 11 is provided on the base 12, and is configured to swing the swing table 8 in the directions of arrows C and D at a constant cycle by, for example, a motor and a cam mechanism. The swing cycle can be freely adjusted according to the shape and weight of the parts to be aligned.

When the parts are aligned, the parts are placed on the alignment pallet 2, and the vibration table 4 is swung in the directions of the arrows C and D while vibrating in the direction described above. As a result, the parts come to reciprocate between the collection pallets 3 while vibrating on the alignment pallet 2, and in the meantime, for example, in the concave form frame formed according to the shape of the parts on the alignment pallet 2. Fit and line up. Then, when the parts are housed in all the molds, that is, when the parts are aligned, the rocking of the rocking type part aligning machine 1 is stopped, and while the fixed lever 7 is pulled, the recovery palette 3 is moved to the vibration table. 4 and then the parts alignment pallet 2 is removed from the vibration table 4. Then, an empty component alignment pallet 4 is mounted on the vibration table 4 in preparation for the next component alignment, and the process moves to the next component alignment operation.

Although the configuration example of the swing type parts aligning machine 1 and the parts aligning operation have been described above, the vibration mechanism of the vibration table 4 and the aligning pallet 2 also has various kinds as will be described below. First, a first example of the conventional vibration mechanism 21 will be described with reference to FIGS. 6 to 9. Two pairs of shaft holders 22a and 22b are provided at four corners on the swing table 8 as shown in FIGS. It is fixed and a pair of slide shafts 23 are attached between the shaft holders 22a and 22b. 6 is a sectional view taken along the line EE of FIG. 7, and the swing table 8 is not shown. Since the slide bearing 24 through which the slide shaft 23 is inserted is fixed to the bottom surface of the vibration table 4, the entire vibration table 4 can be reciprocated in the directions of arrows F and G while being guided by the slide shaft 23. Become.

On the other hand, a motor M is fixed to the swing table 8, and an eccentric cam 26 is attached to the motor shaft 25 as shown in FIG. 8 and enlarged in FIG. A rotating ring 28 having a bearing 27 is attached to the outer circumference of the eccentric cam 26, and a connecting member 29 is attached to one end of the outer periphery of the rotating ring 28. A ball joint 30 is provided on the bottom surface of the vibration table 4 in an upright manner, and the other end of the connecting member 29 is attached to the ball joint 30.

In the vibrating mechanism 21 having the above-described structure, the eccentric cam 26 rotates when the motor M is rotated, but the shaft center is deviated, so that the position shown by the solid line in FIG. Rotate. At this time, the rotating ring 28 itself does not rotate due to the action of the bearing 28, but its position makes a circular motion. Since the motor M is fixed to the swing table 8, the vibration table 4 reciprocates in the directions of arrows F and G through the connecting member 29 and the ball joint 30, and the vibration table 4 swings. It will vibrate. The vibration width of the vibration table 4 is 2L when the distance between the center of the eccentric cam 26 and the center of the motor shaft 25 is L, and this vibration width can be freely changed. Further, the speed of vibration can be freely changed by controlling the rotation speed of the motor M.

Next, a second example of the vibration mechanism 21 will be described with reference to FIGS. 10 and 11. The vibration table 4 is supported by the rocking table 8 so that it can reciprocate, that is, vibrate in the directions of arrows F and G by the shaft holders 22a and 22b, the slide shaft 23, and the slide bearing 24, as in the first example. . The motor M is attached to the upper part of the swing table 8 as shown in FIG. 11 and outside the vibration range of the vibration table 4, that is, outside the position shown by the phantom line in FIG. The rotating plate 31 is attached. Further, one end of the rotary plate 31 and a fixture 32 attached to one end of the vibration table 4 are connected by a ball joint 33 on both sides.

In the vibration mechanism 21 having the above-described structure, when the motor M is rotationally driven, the rotary plate 31 also rotates integrally, and the ball joints 33 on both sides are pushed in response to this rotation as shown by the solid line in FIG. , It is drawn as shown by the imaginary line, so to speak it performs a piston movement. As a result, the vibrating table 4 reciprocates in the directions of arrows F and G, in other words, vibrates, and the parts are aligned in combination with the rocking action. The vibration width of the vibration table 4 is 2L when the distance between the center of the motor shaft 25 and the ball joints 33 on both sides of the rotary plate 31 is L, and the vibration width can be freely changed. You can Further, the speed of vibration can be freely changed by controlling the rotation speed of the motor M.

Next, a third example of the vibration mechanism 21 will be described with reference to FIGS. 12 to 14. The vibrating table 4 is attached to the rocking table 8 by the support columns 35 at the four corners of the bottom surface. The support column 35 is made of a flexible material such as rubber or spring. A motor M is fixed to approximately the center of the bottom surface of the vibration table 4, and a balancer 36 such as a plate material is attached to the motor shaft 25. In the vibrating mechanism 21 having this structure, when the motor M is rotationally driven, the weight of the balancer 36 causes the motor M to vibrate. Since the vibrating table 4 is supported by the supporting column 35 having flexibility, the vibration table 4 as a whole vibrates due to the shaft deflection of the motor M. The vibrating form of the vibrating table 4 is a circular motion as shown by an arrow H in FIG. 14, but since the support column 35 has flexibility, it vibrates slightly in the vertical direction in addition to the circular motion.

Next, a fourth example of the vibration mechanism 21 will be described with reference to FIGS. 15 and 16. The vibration table 4 is attached to the vibration table 8 by means of slide shafts 38 at the four corners of the bottom surface. As shown in FIG. 16, the slide shaft 38 has a cylindrical flange member 39, one end fixed to the vibration table 4 and the other end guided by the flange member 39 to move up and down, and a swing table 8 at one end. The shaft 42 is fixed and the other end thereof is guided by the flange member 39 to move up and down, and springs 43 and 44 provided outside the shafts 41 and 42. The motor M is laterally mounted on the bottom surface of the vibration table 4 by a mounting bracket 44, and a balancer 36 is mounted on the motor shaft 25.

In the vibrating mechanism 21 having the above-described configuration, when the motor M is rotationally driven, the vibration table 4 vibrates in the up-down direction due to the shaft swing of the motor M, and the parts are aligned in combination with the swinging action. The slide shaft 38 is provided when it is desired to completely move the vibration table 4 up and down, and if lateral vibration may be applied, the same support column 35 as in the case of the third example is applied. May be.

[0014]

[Problems to be solved by the device]

 By the way, the size and weight of the parts to be aligned, as well as the shapes and materials are various, and according to the study by the inventor of the present application, by vibrating or swinging according to the shape of the parts, It has become clear that the alignment can be done much more efficiently. However, according to the vibrating mechanism 21 shown in the first and second examples, the vibrating table 4 only reciprocates in the directions of arrows F and G. Alignment efficiency will be reduced due to friction. According to the vibrating mechanism 21 shown in the third example, since the vibrating table 4 moves in a substantially circular shape, it can be used for aligning various types of parts, and the radius of rotation can be adjusted by the length of the support column 35. . However, since the support column 35 has flexibility and elasticity, the movement of the vibration table 4 is not uniform, and uncertain factors such as difficulty in controlling the vibration amount and direction are large. . In addition, there is a problem that the support pillars 35 change greatly with time and the replacement frequency increases. The vibrating mechanism 21 shown in the fourth example basically has the same problem as the first and second examples because the vibrating table 4 vibrates up and down but does not laterally vibrate. Become. An object of the present invention is to provide an oscillating part aligner in which the number of uncertainties during vibration is small and the vibration frequency and vibration range can be easily adjusted.

[0015]

[Means for Solving the Problems]

 The above object of the present invention can be achieved by the following (1) and (2). (1) A first slide shaft, a vibration table on which a first slide bearing that moves along the first slide shaft is fixed, and a second slide shaft that is orthogonal to the first slide shaft. A second slide bearing that moves the first slide shaft along the second slide shaft; a swing table that fixes the second slide shaft; and a motor that is fixed to the swing table. And a cam mechanism that biases the vibration table about two horizontal axes in response to the rotation of the table, and swings the vibration table integrally with the swing table when aligning parts, and An oscillating parts aligner characterized by vibrating the vibration table about two axes. (2) The cam mechanism corresponds to the motor fixed to the swing table, the eccentric cam fixed to the motor shaft of the motor, and the vibration of the eccentric cam in response to the shaft runout caused by the rotation of the eccentric cam. The swing part aligning machine according to claim 1, further comprising a rotating ring for urging the two parts in a horizontal direction.

[0016]

[Action]

 According to the swing type part aligner having the above-described configuration, the vibration table moves along the first slide shaft, and the first slide shaft is provided with the second slide that is orthogonal to the first slide shaft. Move along an axis. A second slide shaft is fixed to the swing table, and a motor that constitutes a cam mechanism for vibrating the vibration table is also fixed. When the motor is driven to rotate, the eccentric cam that constitutes the cam mechanism rotates, and the position of the rotating ring connected to the eccentric cam rotates in a circular shape corresponding to the eccentric amount of the eccentric cam. Since one end of the rotating ring is fixed to the bottom surface of the vibrating table, a force is applied to the vibrating table in the biaxial directions on the horizontal plane, that is, in the X and Y directions. Therefore, the vibrating table vibrates in a rotating state in response to the rotation of the rotating ring, and in combination with the swinging, the parts can be efficiently aligned.

[0017]

【Example】

 Hereinafter, an embodiment of an oscillating type part aligner to which the present invention is applied will be described with reference to FIGS. 1 is a bottom view showing the bottom structure of the vibration table and a part of the vibration mechanism, FIG. 2 is a side view showing the structure of the vibration mechanism, and FIG. 3 is an enlarged bottom view of the main part showing the structure of the cam mechanism. FIG. 4 is another side view showing the configuration of the vibration mechanism. In the description of the embodiments, the drawings and the reference numerals used in the description of the conventional example are used as appropriate. The structure of the vibrating mechanism 41 in the present embodiment can be roughly divided into a supporting portion for rotating the vibrating table 4 in a horizontal state and a cam mechanism. First, the schematic structure of the support portion will be described. As shown in FIG. 1, a slide bearing 24 that moves along the slide shaft 23 is provided on the bottom surface of the vibration table 4 as in the case described in the first example. However, the fixing structure of both ends of the slide shaft 23 is different from that of the first example. That is, in this embodiment, a pair of slide shafts 42 are provided in the direction intersecting with the slide shafts 23, and the ends of each slide shaft 42 are fixed to the swing table by the fixed stays 43a and 43b as shown in FIGS. It is fixed at 8. Both ends of the slide shaft 23 are fixed to slide bearings 44 a and 44 b which move along the slide shafts 42.

According to the support structure of the vibration table 4, the vibration table 4 reciprocates in the X direction shown in FIG. 1 by the slide bearing 24 that moves along the slide shaft 23. Further, although the slide bearings 44a and 44b are configured to move along the slide shaft 42, they are not fixed to the vibration table 4 as apparent from FIGS. 2 and 4. Therefore, the vibration table 4 reciprocates in the X direction, and reciprocates in the Y direction by the action of the slide shaft 42 and the slide bearings 44a and 44b. As a result, when the vibrating table 4 is biased in the X and Y directions by the cam mechanism 51, which will be described later, the vibrating table 4 rotates in the biaxial direction on the horizontal plane, but reciprocating motion is included in the biaxial direction, so that the vibration table 4 rotates. It will vibrate in the state.

Next, the structure of the cam mechanism 51 will be described. The cam mechanism 51 is provided substantially at the center of the bottom surface of the vibration table 4. As shown in FIG. 2, the cam mechanism 51 is composed of a motor M fixed to the vibration table 8, an eccentric cam 26 fixed to the motor shaft 25, and a rotating ring 28 provided via a bearing ring 27. The upper end of 28 is fixed to the bottom surface of the vibration table 4 by a joint member 45. Therefore, in this embodiment, the connecting member 29 and the ball joint 30 shown in the first example are not provided, and the structure is simplified.

According to the cam mechanism 51, by rotating the motor M, the eccentric cam 26 rotates from the position shown by the solid line in FIG. 3 around the motor shaft 25 as shown by the imaginary line. As a result, the rotating ring 28 itself does not rotate, but its position moves around the eccentric cam 26. If the motor shaft 25 rotates in the clockwise direction in FIG. 3, for example, the entire rotating ring 28 will rotate. Moves clockwise, in other words, rotates. Since the upper end of the rotary ring 28 is fixed to the bottom surface of the vibration table 4 by the joint 45 as shown in FIGS. 2 and 4, the vibration table 4 is rotated with the rotation of the rotary ring 28. The force that tries to make it act.

Here, recalling the support structure of the vibration table 4, the vibration table 4 is configured to be able to reciprocate in the X direction and the Y direction by the support portion. Therefore, when the cam mechanism 51 is driven as described above, the vibration table 4 vibrates from the position shown by the solid line in FIG. 1 as shown by the imaginary line, that is, rotates in the arrow H direction as described in the third example. It becomes However, in the support structure of this embodiment, unlike the structure of the third embodiment, the vibration range of the vibration table 4 is restricted by the slide shafts 23, 42 and the slide bearings 24, 44a, 44b, so that the vertical direction as well as the X and Y directions is increased. There are no uncertainties in the direction either, and there is no change over time due to elongation or contraction.

The swing table 8 is mounted on the swing type part aligner 1 as described with reference to FIG. 5, and swings in the directions of arrows C and D by the action of the connecting portion 9 and the swing driving portion 11. Be moved. At the same time, when the cam mechanism 51 is driven as described above, the vibration table 4 swings in the directions of arrows C and D, and vibrates as shown by the arrow H in FIG. As a result, a rotational force is applied to the aligned parts of the vibration table 4, and the parts can be positioned and aligned in the radial direction. Further, it is possible to efficiently align parts having a high friction coefficient such as rubber products.

[0023]

[Effect of device]

 As described above, in the swing type part aligner according to the present invention, the vibration table for aligning parts is moved along the first slide shaft and the first slide shaft is moved to the first slide shaft. The second slide shaft is configured to move along a second slide shaft that is provided so as to be orthogonal to the slide shaft, and the second slide shaft is fixed to a swing table that swings the vibration table. A motor that constitutes a cam mechanism for vibrating the motor is fixed so that the vibration table vibrates in a rotating state on a horizontal plane by rotational driving of the motor. That is, since the cam mechanism is provided with the motor and the eccentric cam that rotates by driving the motor, and the rotating ring that vibrates the vibration table by the rotation of the eccentric cam, the vibration table is eccentric by rotating the motor. Rotate circularly according to the amount of eccentricity of the lead cam. As a result, the vibration table vibrates in a rotating state on the horizontal plane, but its rotation range and vertical shake are restricted by the action of the first and second slide shafts, and the uncertain factor is removed. By vibrating the swing table in a rotating state, a rotational force is applied to the parts to be aligned, and the parts are aligned efficiently, and the parts are aligned regardless of the difference in the friction coefficient depending on the material of the parts. be able to. The vibration speed of the vibration table can be varied by controlling the rotation speed of the motor, and the vibration amount can be set arbitrarily by changing the eccentric amount of the eccentric cam.

[Brief description of drawings]

FIG. 1 is a bottom view showing a support structure of a vibration table which constitutes an oscillating part aligner according to an embodiment of the present invention.

FIG. 2 is a side view of an essential part showing the configuration of a vibration mechanism.

FIG. 3 is an explanatory diagram of a main part showing an operation of an eccentric cam.

FIG. 4 is another side view of the main part showing the configuration of the vibration mechanism.

FIG. 5 is a side view showing a configuration of a conventional rocking type parts aligning machine.

FIG. 6 is a bottom view of a vibration table showing a first example of a conventional vibration mechanism.

FIG. 7 is a side view showing a configuration of a vibrating mechanism.

FIG. 8 is an explanatory view showing the action of the eccentric cam.

FIG. 9 is an enlarged cross-sectional view of a main part showing a configuration of an eccentric cam.

FIG. 10 is a bottom view of a vibration table showing a second example of the conventional vibration mechanism.

FIG. 11 is an enlarged side view of the main part showing the configuration of the vibration mechanism.

FIG. 12 is a side view showing a third example of the conventional vibration mechanism.

FIG. 13 is an explanatory diagram of a main part showing generation of vibration.

FIG. 14 is a bottom view showing the vibrating form of the vibrating table.

FIG. 15 is a side view showing a fourth example of the conventional vibration mechanism.

FIG. 16 is an explanatory diagram showing a support structure of a vibration table.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Oscillating parts aligner 4 Oscillating table 8 Oscillating table 23, 42 Slide shaft 24, 44a, 44b Slide bearing 25 Motor shaft 26 Eccentric cam 28 Rotating ring 41 Vibration mechanism 43a, 43b Fixed stay 41 Vibration mechanism 51 Cam mechanism M motor

Claims (2)

[Scope of utility model registration request] 1. A first slide shaft, a vibrating table having a first slide bearing fixed along the first slide shaft fixed thereto, and a second slide shaft orthogonal to the first slide shaft. A second slide bearing for moving the first slide shaft along the second slide shaft, a swing table to which the second slide shaft is fixed, and a motor fixed to the swing table. A cam mechanism for urging the vibration table about two horizontal axes corresponding to the rotation of the vibration table, the vibration table is rocked integrally with the rocking table when parts are aligned, and the vibration is generated by the cam mechanism. An oscillating parts aligner that vibrates the table about two axes. 2. The cam mechanism includes a motor fixed to the swing table, an eccentric cam fixed to a motor shaft of the motor, and the vibration corresponding to shaft runout caused by rotation of the eccentric cam. 2. An oscillating part aligner according to claim 1, further comprising a rotating ring for urging the table in two horizontal axes.