JP2009172690A - Supply device of different kinds of parts - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a supply device of different kinds of parts capable of smoothly supplying the different kinds of parts having different properties in order arrays having different properties into a workpiece without making the parts stay in the transfer passage. <P>SOLUTION: This supply device is provided with two fixed individual part supply holes 7 and 8 capable of passing mutually the different kinds of parts P and Q, intermediate supply holes 11 and 12 for passing the parts which have passed through the individual part supply holes 7 and 8, an intermediate plate 1 moving between the individual part supply holes 7 and 8, and a common part supply hole 9 formed at an opposite side of the individual part supply holes of the intermediate plate 1 and between the individual part supply holes to pass the parts P and Q which have passed through the intermediate supply holes 11 and 12. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a dissimilar part supply device for supplying at least two parts (hereinafter referred to as different parts) having different characteristics such as outer diameter, shape, color, material, etc. (hereinafter referred to as different parts) to a workpiece in a specific arrangement order. .

  When assembling a workpiece, there may be a need for a device in which a plurality of parts are arranged in a line and supplied one after another into the workpiece.

  For example, as shown in FIG. 9A, in Patent Document 1, as such a conventional supply device, a ball screw 50 including a screw shaft 51 and a screw shaft nut 52 is used as a workpiece, and the inside of the screw shaft nut 52 is included. A ball screw assembling apparatus 55 has been proposed in which a plurality of balls 54 are supplied one after another into a thread groove 53 on the peripheral surface and assembled as a ball screw 50.

  In this ball screw assembly device 55, as preparation for inserting the ball 54, first, an outer diameter is formed from the small diameter portion 56 to the large diameter portion 58 through the taper portion 57, and a support end is formed in the cavity 59 inside the right end. The temporary shaft 61 provided with 60 supports the left end portion of the screw shaft 51, and then the screw shaft nut 52 is inserted into the temporary shaft 61 at the position shown in the figure.

  Thereafter, the insertion preparation is completed by inserting a ball insertion jig 62 whose outer shape is substantially flange-shaped as shown in FIG. 9B between the screw shaft 51 and the screw shaft nut 52.

  Then, as shown in FIG. 9A, the introduction of the balls 54 causes the balls 54 to drop one after another from the chute 65 provided on the entrance side of the ball insertion jig 62, and the small diameter portion 56 of the temporary shaft 61. The introduction direction is once changed to the right horizontal direction in the figure and guided into the ball passage 64 of the ball insertion jig 62 in FIG. 9B.

The ball 54 guided into the ball passage 64 is redirected diagonally downward again by the ball stopper 66 on its extension, then flows downward diagonally along the surface of the taper portion 57, and finally the screw shaft. It is supplied into the thread groove 53 of the nut 52.
JP 2004-114224 A (paragraph numbers 0015 to 0019, FIGS. 3 and 4)

  However, the ball screw assembly device 55 of Patent Document 1 changes the direction of the ball 54 supplied obliquely downward from the ball chute 65 in the horizontal direction at one end, on the outer peripheral surface of the small-diameter portion 56 of the provisional shaft 61, so as to maintain a certain distance. After sliding in the horizontal direction, the supply direction of the ball 54 is changed again diagonally downward by the ball stopper 66.

  Therefore, a transfer resistance due to sliding friction occurs on the small-diameter portion 56 of the temporary shaft 61, and the ball transfer path needs to be changed twice. Therefore, the ball 54 is a sphere and is lubricated in the transfer path. There is a problem that even if oil is present, the ball 54 cannot be smoothly introduced into the nut thread groove 53 within a specified time.

  By the way, depending on the workpiece, parts having different part characteristics such as outer diameter, surface shape, material, color, etc. are arranged in one or more rows in a specific sequence, for example, in the above example, steel balls and synthetic resin balls May be supplied alternately.

  The present invention has been made in view of such circumstances, and is capable of supplying a plurality of different types of parts having different characteristics smoothly into a workpiece without stagnation in the transfer path in a specific ordered array. An object is to provide a supply device.

  In order to solve the above-described problem, the different-part supply device according to the present invention passes two fixed individual part supply holes that allow different types of parts to pass through each other and the parts that have passed through the individual part supply holes. An intermediate plate having an intermediate supply hole and moving between the individual component supply holes, and provided between the individual component supply holes on the opposite side of the intermediate plate from the individual component supply holes, and passes through the intermediate supply hole And a common part supply hole through which the passed part passes.

  According to the dissimilar parts supply device according to the present invention, among the transfer paths of the different parts from the individual parts supply hole to the common parts supply hole through the intermediate supply hole, the transfer path from the individual parts supply hole to the intermediate supply hole And, unlike the transfer path of the conventional device described above, the transfer path from the intermediate supply hole to the common part supply hole does not force different parts to move diagonally downward or pass through an extreme bend. It is transferred by free fall due to the acting gravity.

  In addition, in the intermediate plate that translates the component, the component itself does not move horizontally over the temporary shaft overcoming the sliding friction as in the conventional device, but the component is forcibly held in the intermediate supply hole. Translate.

  Therefore, the dissimilar parts supply device according to the present invention has a simple structure, but dissimilarly dissimilar parts having different characteristics in a specific arrangement order, and smoothly stays in the workpiece without stagnation in the transfer path over all the areas. There is an excellent effect that it can be supplied.

  Hereinafter, an example of the best mode for carrying out the present invention will be described with reference to FIGS.

<First Embodiment>
FIG. 1 shows a dissimilar component supply apparatus 10 of a first embodiment of a dissimilar component supply apparatus according to the present invention, in which FIG. 1 (a) is a longitudinal sectional view, and FIG. 1 (b) is FIG. 1 (a). It is a top view of the intermediate | middle board 1 used in this apparatus.

  In FIG. 1, a component P indicates a supply target ball having a large outer diameter D, for example, and a reference symbol Q indicates a supply target ball having a smaller diameter d (D> d) than the outer diameter of the ball P. Show. In other words, in the present embodiment, since these two balls have different “outer diameter” characteristics, the ball P and the ball Q are parts to be supplied, but are different parts.

  As shown in FIG. 1 (a), the basic structure of the dissimilar component supply apparatus 10 of the present invention is roughly composed of a ball supply unit 2, an upper plate 4, an intermediate plate 1, and a lower plate 3.

  The ball supply unit 2 is a part for storing a necessary number of balls P and Q in advance, and for the ball P standing up and down at a distance L from the center line C of the upper plate 4 by a distance L. The supply pipe 5 made of, for example, a transparent plastic, and the like pipe 6 for the ball Q are formed.

  Each of the transparent pipes 5 and 6 has an inner diameter that allows the balls P and Q to be held in a line in the pipes 5 and 6 with sufficient margins, and that individual balls can be smoothly dropped downward due to gravity. Has been.

  The upper plate 4 holds the two pipes and supplies the balls P and Q supplied from the respective pipes into intermediate supply holes 11 and 12 provided in the next intermediate plate 1. Thus, two individual component supply holes (hereinafter referred to as the left individual component supply hole 7) that are the fixed supply holes for the balls P that allow the balls P and Q to pass through, and the individual supply holes that are the supply holes for the balls Q A component supply hole (hereinafter, referred to as right individual component supply hole 8) is provided at a position separated from the center line C by a distance L to the left and right.

  The inner diameter of the left individual component supply hole 7 is d1, the inner diameter of the right individual component supply hole 8 is d2, and the inner diameters of these individual component supply holes 7, 8 are the supply pipes provided above the respective supply holes. The balls P and Q in the balls 5 and 6 are dimensioned so that they can drop smoothly onto the lower intermediate plate 1 due to gravity.

  The “fixed... Supply hole” means that “intermediate supply holes 11, 12” provided in the intermediate plate 1 described later is between the left individual component supply hole 7 and the right individual component supply hole 8. It means that it is stationary while reciprocating.

  The intermediate plate 1 includes two through holes, the left individual component supply hole 7 and the right individual component supply hole 8, and receives one of the balls P and Q from one of the holes. The ball is transferred to a position directly above a common component supply hole 9 of the supply unit 3 to be described later, and the other ball is received in the other hole and similarly transferred to a position directly above the common component supply hole 9. .

  The intermediate plate 1 is located below the upper plate 4 and is a plate having a rectangular shape (length W) in plan view as shown in FIG. In order to receive the balls P and Q from the holes 7 and 8, on the center line C and at a position displaced from the center line C by the distance L in the right direction in the drawing, that is, the left individual component supply hole 7 and the right individual component. Two intermediate supply holes 11 and 12 having an inner diameter d3 (d1 <d3) that is slightly larger than the inner diameter d1 of the left individual component supply hole 7 are located at a distance L that is half the distance 2L between the supply holes 8. (In FIG. 1B, the one located on the left side is referred to as “left intermediate supply hole 11”, and the one located on the right side is referred to as “right intermediate supply hole 12”.)

  The length from the intermediate supply hole located on the center line C to the left end in the figure is at least the distance L plus half the inner diameter d3 of the intermediate supply hole 11 (L + 1/2 · d3). Is formed.

  Further, the thickness T of the intermediate plate 1 is formed to be larger than the ball outer diameter D of the large-diameter ball P (D <T).

  Further, the intermediate plate 1 has a left end of the intermediate plate 1 in FIG. 1A and an upper and lower side surfaces of the intermediate plate 1 in FIG. Since the slightly thick spacer 13 is interposed, the gap between the upper plate 4 and the lower plate 3 and the movement of the intermediate plate 1 in the vertical direction in FIG. It can move smoothly only in the horizontal direction in the figure.

  Further, various actuators such as a fluid pressure cylinder and a stepping motor are connected to the right end of the intermediate plate 1 as a drive unit 14. The drive unit 14 includes a first sensor 17a provided in the vicinity of the outer peripheral surface of each of the supply pipes 5 and 6, and a bracket (not shown) below the lower plate 3 and in the vicinity of the falling balls P and Q. It operates based on the component detection signal from the second sensor 17b fixed in the above.

  Here, the first sensor 17a is a detection sensor such as a proximity switch that can detect the presence or absence of a ball inside the supply pipe, and the second sensor 17b is a photoelectric sensor that includes, for example, a projector and a light receiver, or a ball that falls just before A detection sensor such as a CCD camera that can detect the shape, outer diameter, color, and the like of the camera can be transmitted to the control unit 15 that can set various thresholds. The control unit 15 sends the drive unit 14 based on the control signal. It can be controlled.

  The lower plate 3 sequentially receives any of the balls (the ball P in FIG. 1A) transferred by the intermediate plate 1 and, after receiving, drops downward to receive a workpiece receiving portion 2E (see FIG. 7)).

  The lower plate 3 is located at the lower part of the intermediate plate 1 and is a rectangular plate in plan view similar to the upper plate 4 and the intermediate plate 1, and on the surface thereof on the side opposite to the individual component supply holes 7, 8, In addition, a common component supply hole 9 through which components such as balls P and Q that have passed through the intermediate supply holes 11 and 12 can be commonly passed is provided between the individual component supply holes 7 and 8. The common component supply hole 9 has an inner diameter d4 that is larger than the inner diameter d3 of the two intermediate supply holes 11 and 12, so that the balls P and Q can easily fall due to gravity.

  The common component supply hole 9 of the lower plate 3 is located on the center line C (see FIG. 1A), and the two individual component supply holes 7 and 8 of the upper plate 4 as described above. In the middle position. Furthermore, as shown in FIG. 1B, the individual component supply holes 7 and 8, the intermediate supply holes 11 and 12 of the intermediate plate 1, and the common component supply hole 9 of the lower plate 3 have the same position in plan view. It is provided in the relationship located on the straight line C1.

  As shown in FIG. 1A, the upper plate 4, the intermediate plate 1, and the lower plate 3 are stacked in this order, and are integrally coupled with a hexagon socket bolt 16.

  The sizes of the individual component supply holes 7 and 8, the intermediate supply holes 11 and 12 and the common component supply holes 9 described in the above description are merely examples, and are not necessarily related to the above-described size relationship. It is not necessary to have an inner diameter. In short, any ball having any inner diameter can be used as long as the balls P and Q thrown into the supply pipes 5 and 6 can be smoothly dropped to the outside of the common component supply hole 9 below by gravity. Good.

  Further, it is preferable that the shapes of the supply holes 7 to 9, 11, 12, and the like be other than a circle, for example, a rectangle, an ellipse, or the like according to the outer shape of the component to be supplied.

  Next, the operation and effect of the dissimilar component supply apparatus 10 according to the first embodiment will be described.

  In FIG. 1A, first, an operator throws the ball P into the supply pipe 5 and the ball Q into the supply pipe 6 to the position shown in the figure. When the intermediate plate 1 is stopped at the position shown in the drawing, the ball P is located on the surface of the intermediate plate 1, while the ball Q is located inside the intermediate supply hole 12 on the right side of the intermediate plate 1.

  FIG. 1B described above shows only the intermediate plate 1 in this state as viewed from above. In FIG. 1 (b), when the drive unit 14 in FIG. 1 (a) operates and the intermediate plate 1 is pushed to the left in the drawing by the distance L, the intermediate plate 1 is positioned at the two-dot chain line in FIG. 1 (b). Move up.

  That is, the left intermediate supply hole 11 of the intermediate plate 1 moves to the two-dot chain line position, and the right intermediate supply hole moves to the center line C position. Although the illustration corresponding to FIG. 1A in the state after the movement is omitted, the left intermediate supply hole 11 of the intermediate plate 1 is replaced with the left individual component supply hole 7 when described with reference to FIG. It can be easily understood that the right intermediate supply hole 12 is positioned immediately below the common component supply hole 9.

  When the drive unit 14 stops here, the ball P falls into the left intermediate supply hole 11 and the ball Q in the right intermediate supply hole 12 falls into the common component supply hole 9 due to gravity. In this case, the ball P in the left intermediate supply hole 11 has been received in the left intermediate supply hole 11 and the next transfer preparation has been completed, while the ball Q is outside the lower plate 3. To be supplied to the workpiece receiving portion 2E (see FIG. 7) in the next process.

  Next, when the drive unit 14 pulls back the intermediate plate 1 by the distance L, the state again becomes as shown in FIG. 1A. This time, as described above, the left intermediate supply hole 11 is directly above the common component supply hole 9. Since the right intermediate supply hole 12 is located immediately below the right individual component supply hole 8, the ball P received in the left intermediate supply hole 7 falls into the common component supply hole 9 as shown in FIG. The ball Q falls into the right intermediate supply hole 12.

  If any of the supply pipes 5 and 6 loses the balls P and Q, the signal of the first sensor 17a indicates that the balls P and Q having different outer diameters and their arrangement orders other than the prescribed values are used. When the land is detected, the signal of the second sensor 17b is transmitted to the control unit 15, and an alarm or the entire apparatus is stopped.

  Thus, each time the intermediate plate 1 reciprocates in the left-right direction in the figure by the distance L around the center line C by the action of the drive unit 14, the ball P is removed from the two common component supply holes 9 as shown in the figure. And the balls Q fall alternately, and therefore, the work receiving section below them can be supplied with a row of balls that match the above order.

  Therefore, according to the heterogeneous component supply apparatus 10 of the present embodiment, unlike the above-described conventional apparatus, each ball P, Q can be supplied individually without being forced to move obliquely downward or pass through an extremely bent portion. The hole and the common part supply hole 9 pass by free fall due to gravity.

  Further, in the intermediate plate 1, the intermediate plate 1 does not move horizontally while sliding over the temporary shaft 61 to overcome the friction as in the conventional device, but the intermediate plate 1 reciprocates to move into the intermediate supply holes 11 and 12. The balls P and Q held in the forcibly move.

  Therefore, the dissimilar-part supply apparatus 10 of this aspect can supply the dissimilar-parts from which a characteristic differs in a specific arrangement | sequence order smoothly in a workpiece | work, without staying in the transfer path, although it is a simple structure.

Second Embodiment
Next, FIG. 2 is a longitudinal sectional view of a second embodiment of the dissimilar component supply apparatus according to the present invention. Since the basic structure of the supply device 10A of the second embodiment is the same as that of the device 10 of the first embodiment described above, the same parts as those in the first embodiment are denoted by the same reference numerals, and only different parts will be described.

  That is, the supply device 10A of the second embodiment is different from the supply device 10 of the first embodiment in that the dissimilar parts of the device 10 of the first embodiment are different in the ball Q having a smaller diameter d than the outer diameter D of the ball P. However, the dissimilar part Q1 of the apparatus according to the second embodiment has the same outer diameter D as that of the ball P, and the surface has a different color from that of the ball P.

  Therefore, as shown in the figure, in the different component supply apparatus 10A, the inner diameters of the two intermediate supply holes 11 provided in the supply pipe 5 and the intermediate plate 1A are the same on the left and right.

  The second sensor 17b is different in that it is a CCD camera that can detect the outer diameters of the balls P and Q1 and their colors, but the other configuration is the same as that of the first embodiment. .

  According to the dissimilar parts supply device 10A of the second embodiment, the balls P and Q1, which are two kinds of dissimilar parts having the same outer diameter and color, are alternately arranged in a line, so that the work receiving unit in the next process It can be supplied smoothly.

In addition, since the CCD camera of the second sensor 17b used in the present embodiment can detect the outer shape and color of the dissimilar parts, it can also detect the outer shape, so that the one-row arrangement in which the dissimilar parts have a shape other than the sphere is also possible. A device that can be smoothly fed into the workpiece without stagnation in the transfer path can be realized with a simple structure.
<Third Embodiment>
FIG. 3 is a plan view of an intermediate disc 1B corresponding to the intermediate plates 1 and 1A in the devices 10 and 10A of the first and second embodiments described above, relating to the dissimilar component supply device 10B of the third embodiment.

  That is, as shown in FIG. 1 and FIG. 2 described above, in the dissimilar component supply devices 10 and 10A of the first and second embodiments, the shapes of the intermediate plates 1 and 1A are rectangular, and the movement is also intermediate. The supply holes 11 and 12 reciprocate the two individual component supply holes 7 and 8 and the common component supply hole 9 on the same straight line C.

  However, in the dissimilar component supply device 10B of the third embodiment, the intermediate plate 1B has a shape of a disk having an outer diameter D1, and this disk is a plurality of units I to IV in the circumferential direction. The two intermediate supply holes 11 and 12 indicated by solid lines are arranged on the circumference of the same radius r (r <D1) in each unit.

  Further, the intermediate plate 1B is rotated in the forward and reverse directions around the center point O about the center point O by the driving means (not shown) similar to the above-described embodiment, with the movement of the intermediate plate 1B centered on the center line C. Thus, the arc length on the circumference of the radius r is reciprocated within the range of L.

  Therefore, an upper plate (not shown) located above the intermediate plate 1B has a disk-like outer shape, and the two individual component supply holes are on the circumference of the same radius r as the intermediate plate 1B. Is arranged.

  Therefore, the same applies to the supply unit located further above the upper plate 4, and the transparent plastic supply pipe 5 for storing the large-diameter ball P is located on the position indicated by the two-dot chain line in the figure. The supply pipe 6 made of, for example, transparent plastic for storing the small-diameter ball Q is erected on a position indicated by a two-dot chain line having a small diameter in the drawing.

  Further, the same applies to the lower plate (not shown) located below the intermediate plate 1B, and the outer shape thereof is a disc shape, and the common component supply hole (not shown) has the same radius r as that of the intermediate plate 1B. It is arranged on the circumference.

  These members are integrally coupled with a bolt (not shown) to form the dissimilar component supply device 10B of the third embodiment.

  As described above, the movement of the intermediate plate 1B used in the supply device of the present invention includes not only the straight movement described with reference to FIGS. 1 and 2, but also the circular movement of the present embodiment.

Therefore, according to the different component supply apparatus 10B of the third embodiment, all the operations and effects of the different component supply apparatuses 10 and 10A of the first and second embodiments described above are provided and arranged in a specific order. The supply amount of the plurality of different parts to the next process can be increased four times at a time as compared with those of the first and second embodiments.
<Application example>
By the way, in the different parts supply devices 10 to 10B of the embodiment described above, there are only two kinds of different parts having different outer diameters, and the arrangement thereof is only an alternating arrangement of balls P → Q → P → Q. In some cases, for example, this is an arrangement of balls P → Q → Q → P or other repeating units, and the third and fourth different parts having different characteristics are mixed in such repeating units. Can this be realized by the present invention?

  However, such a configuration can be easily realized.

  It is an example in which all of the first to third embodiments described above have two individual component supply holes 11 and 12 in the intermediate plate 1 or the intermediate disc 1B. What has only one hole as an individual component supply hole, not a supply hole, is an intermediate plate.

  Then, referring to FIG. 1, the one-hole intermediate plate moves to the left to the position immediately below the left-side individual component supply hole 7 to receive the ball P in the single-hole individual component supply hole and receive it. After that, it is returned to the common part supply hole 9 and moved to just below the right individual part supply hole 8 on the right side to receive the ball Q. One individual component supply hole of the intermediate plate 1 is thrown into the common component supply hole 9 so that it is inserted into the supply hole 9 and then moved again directly below the left individual component supply hole 7. If it moves to the individual component supply hole position 7 or 8 position holding Q and receives the ball and then moves to the common component supply hole 9 after receiving it, P → Q → P → Arrangements of the above embodiments other than the Q embodiment can be easily realized. A.

  Therefore, the stroke of the intermediate plate can be easily realized by changing each time to a desired individual component supply hole position holding a different kind of component to be put into the common component supply hole 9, Of course, those are also included in the scope of the present invention.

  Further, even when the intermediate plate 1 or the intermediate disk 1B has the two individual component supply holes 11 and 12, it can be easily realized by some improvement of the apparatus.

  First, the former ball P → Q → Q → P is repeated by moving the intermediate plate holding the ball Q inside the right intermediate supply hole 12 in FIG. Then, the ball Q is dropped into the common component supply hole 9 immediately above the common component supply hole 9. By this operation, if the ball P located between the intermediate plate 1 and the lower plate 3 in the drawing is the first, the arrangement order of the balls P → Q is realized. This operation is the operation as described above with reference to FIG.

  Next, the ball Q must be dropped into the common component supply hole 9, but in this case, the intermediate plate 1 is moved back to the right in the figure by a distance L. At this time, since the left intermediate supply hole 11 is located immediately below the left individual component supply hole 7, the ball P has already fallen into the left individual component supply hole 7.

  Accordingly, when the intermediate plate 1 moves back by a distance L in the right direction in the drawing in this state, the balls P fall into the common component supply hole 9, and the arrangement order is the same as in the first and second embodiments. Since Q → P, the ball P is prevented from falling into the left intermediate supply hole when the left intermediate supply hole of the intermediate plate 1 reaches just below the left individual component supply hole 7 at the position shown in the figure. Must be stationary.

  As such a ball stationary means, for example, a pressure fluid injection hole (not shown) provided on the inner wall surface of the left individual component supply hole 7 of the ball P with respect to the ball P at the lowermost end portion of the left individual component supply hole 7. By known means such as injecting a pressure fluid to press the ball P against the inner wall surface of the supply hole, and if the ball is a steel ball, it is attracted by a magnet (not shown) provided near the lowermost end outside the left individual component supply hole 7 It can be easily realized.

  In order to support the ball P from below, a shutter plate (not shown) that moves forward and backward into the supply hole 7 may be inserted into the supply hole from the left individual component supply hole 7 by an appropriate driving means.

  Thus, the ball Q is dropped into the right intermediate supply hole 12 which is emptied back in the right direction in the figure, and moves to the left direction in the figure again while holding the ball Q and is moved to the common part supply hole 9. By dropping the ball Q into the common component supply hole 9 from directly above, an arrangement order of the balls P → Q → Q can be realized.

  According to the component supply device of this form, while the intermediate supply hole receives the supply of one component from one individual component supply hole, the other component accommodated in the other intermediate supply hole is supplied as a common component. Since it can supply to a hole, the timing for supply can be shared, As a result, there exists an effect that the tact time of the whole apparatus can be shortened.

  As described above, the different-part supply devices 10 to 10B according to the present invention have any one of the first to third embodiments described above as a basic structural unit, and appropriate ball stationary or stopping means and detection according to the ball characteristics. By attaching a sensor, it can be easily realized even if the repeating unit of the characteristic is other than the above, or even when the number of different types of components is three or more.

  Next, an embodiment of the present invention will be described with reference to FIGS.

  4 is an overall view of the ball insertion device 10C, FIG. 4 (a) is a front view thereof, and FIG. 4 (b) is a right side view of the device of FIG. 4 (a).

  In these figures, a ball screw 50 held in the workpiece receiving portion 2E is a workpiece, and a ball for supplying two types of balls (steel balls) having slightly different outer diameters to the ball female screw portion 52 as different parts, for example. An insertion device 10C is shown.

  In FIG. 4, the ball insertion device 10C of the present embodiment is roughly composed of an upper ball supply unit 2C, a slide unit 2D, and a work receiving unit 2E.

  In FIG. 4B, reference numeral 20 denotes a base stand, and reference numeral 21 denotes a control panel for controlling the movement of each part, and the control unit 15 described in FIG. 1 is stored therein.

  Hereafter, each said part is demonstrated in detail, referring FIGS. 5-8 which are the drawings.

<Ball supply unit 2C>
FIG. 5 shows the entire ball supply unit 2C. FIG. 5A is a front view thereof, and FIG. 5B is a right side view of the ball supply unit 2C of FIG. 5A.

  As shown in these drawings, the entire ball supply unit 2C is provided on a gate-shaped frame 23 erected on the base table 20 (see FIG. 4A).

  The ball supply unit 2C includes a ball P hopper 24 that stores the ball P therein, a ball Q hopper 25 that stores the ball Q therein, and a bracket 26 that supports the hoppers 24 and 25 at a certain height H. Each of the hoppers 24 and 25, a supply pipe 27 made of, for example, a transparent plastic for the ball P for connecting between slide sections 2D to be described later, and a supply pipe 28 of the same configuration for the ball Q It is configured.

  A ball P thrown into the ball P hopper 24 shown in FIG. 5A and a ball Q thrown into the ball Q hopper 25 in FIG. 28 is dropped and supplied to the slide portion 2D below it.

  Reference numerals 29 and 30 in the figure are ball push-in bars for pushing the balls P and Q (see FIG. 8) into the component temporary holding means 48 described later by the forward and backward action of the fluid cylinder device.

  That is, the ball insertion device 10C of the present embodiment is a double-type ball insertion device in which the respective units are arranged symmetrically as shown in these drawings.

<Slide part 2D>
FIG. 6 is an overall view of the slide portion 2D for receiving the two types of balls P and Q that have fallen in the transparent plastic supply pipes 27 and 28 of the ball supply portion 2C and arranging them alternately in a line. . 6A is a plan view, FIG. 6B is a front view of a cross-section of the main part of the slide part 2D, and FIG. 6C is an EE of the slide part 2D of FIG. 6A. It is the left view which looked at the step-like cross section along a line from the arrow direction.

  6 (a) and 6 (b), a supply pipe 27 made of, for example, transparent plastic for the ball P in the previous process and a supply pipe 28 for the ball Q are connected to the upper plate 4C. On the center line C between the pipes, the ball push-in bars 29 and 30 described above in the previous process are arranged. In addition, the planar arrangement | positioning state of these members 27-30 is as the top view of Fig.6 (a).

  Further, as shown in FIG. 6C, the ball push-in rod 29 can penetrate the common component supply hole 9C of the lower plate 3C. The distance from the center line C position (common component supply hole 9C position) to the center of each supply pipe is L as in the case of the first to third embodiments described above.

  As shown in the cross-sectional view of FIG. 6C, a slide plate 1C and a lower plate 3C are stacked in this order on the lower portion of the upper plate 4C, and the lower plate 3C is the portal frame 23 described in the previous step. (See FIG. 5B). Therefore, as shown in the figure, the slide plate 1C has a substantially L-shaped cross section sandwiched between the upper plate 4C and the lower plate 3C, and a pair of left and right with the center line C2 as the center is spaced M. Is arranged in.

  Each slide plate 1C is mounted on a slide plate 45b with a slide bearing so that the slide plate 1C can move forward and backward on a slide groove rail 45a fixed along the direction of the center line C2 on the portal frame 23. As shown in FIG. 6B, the right end is connected to the piston shaft 41 of the fluid cylinder 40 which is a driving means.

  Therefore, if the piston shaft 41 of the fluid cylinder 40 reciprocates, the intermediate plate 1C can advance and retreat in the left-right direction in FIG. 6B between the upper plate 4C and the lower plate 3C.

  That is, the slide portion 2D of the ball insertion device 10C according to the present embodiment embodies the supply device 10 according to the first embodiment of the present invention described above.

<Work receiving part 2E>
FIG. 7 is an overall view of the workpiece receiving portion 2E for supplying the balls P and Q temporarily held in the component temporary holding means 48 to the ball screw 50 fixed to the workpiece fixing portion 42. 7A is a front view of the workpiece receiving portion 2E, and FIG. 7B is a right side view thereof.

  As shown in the figure, the workpiece receiving portion 2E is composed of a component temporary holding means 48 and an elevating device 47.

  The parts temporary holding means 48 is for temporarily stocking the balls P and Q when the balls P and Q are supplied to the workpiece receiving portion 2E in the next process. Are fixed with hexagon socket head cap screws 16.

  The elevating device 47 includes a base 35, a fluid cylinder device 40 in which the cylinder portion 36 is fixed on the base 35, and a work fixing portion 42 fixed to the piston shaft portion 41 of the fluid cylinder device 40. The component temporary holding means 48 fixed to the lower part of the portal frame 23 is located with the center lines C and C1 in common.

  Since the piston shaft portion 41 has S as a fixed upward stroke, the workpiece fixing portion 42 to which the ball screw 50 is fixed can be raised by the stroke by the command from the control panel 21.

  8 is an enlarged sectional view of the component temporary holding means 48 shown in FIG. 7, FIG. 8 (a) is a front view thereof, and FIG. 8 (b) is a right side view thereof.

  As shown in FIG. 8 (a), the component temporary holding means 48 includes a pair of left and right through holes 43 having an inner diameter that allows the balls P and Q to fall freely in a line across the center line C2. Is formed. On the center line C1 of each through-hole 43, push rods 29 and 30 shown in FIGS. 5 and 6A and a common component supply hole 9C shown in FIG. And are located.

  Further, at the lower part, a width straddling the center line C2 is W1, and at the uppermost part, a recess having an abutting part 44 is formed. The abutting part 44 is fixed to the work receiving part 2E, and the piston shaft part The screw shaft of the ball screw 50 raised by 41 can come into contact.

  The push rods 29 and 30 are inserted from the through holes 43 (see FIG. 6C) provided in the upper plate 4C by the fluid cylinder device 45 shown in FIG. 5B, and the intermediate supply holes of the intermediate plate 1C are inserted. 46 and the common component supply hole 9 </ b> C, as shown in FIG. 8A, the component temporary holding means 48 can be inserted.

  The balls P and Q pushed alternately by the push rods 29 and 30 are supplied from both sides to the thread groove 53 between the screw shaft 51 of the ball screw 50 and the nut 52 (see FIG. 9A). .

  Reference numeral 49 in FIG. 8 denotes stop / release means for closing the opening 43a at the bottom of the through-hole 43, and releasing the balls P and Q that have reached the specified number of retentions to be released to the outside at an appropriate time. . The stop / release means 49 is configured such that, for example, a piston advances and retreats based on a signal from the second sensor 17b.

  Next, the operation of the ball insertion device 10C of the present embodiment will be described.

  First, in FIG. 5, when the balls P and Q are supplied to the ball hopper 24 and the ball Q hopper 25, the balls P and Q fall in the supply pipes 27 and 28. Then, the sheet is fed into the upper plate 4C and the intermediate plate 1C in FIG.

  Next, when the fluid cylinder device 40 of FIG. 6 (b) is driven, the intermediate plate 1C reciprocates by a distance L about the center line C of FIG. 6 (a). The control action of the intermediate plate 1C performs the same action as described in FIG.

  Balls P and Q are successively supplied to the component temporary holding means 48 of FIG. 8 one after another from the common part supply hole 9C of the lower plate 3C, and when the necessary number of balls P and Q are accumulated, the stop / release means 49 Stocked temporarily by action.

  Here, the ball screw 50 of the workpiece receiving portion 2E is raised and stopped when it comes into contact with the abutting portion 44 in the component temporary holding means 48.

  When the push rods 29 and 30 are inserted from above the through-hole 43 and the stop / release means 49 is opened, the balls P and Q temporarily stored in the component temporary holding means 48 are pushed out to the outside. The ball screw 50 is supplied to the ball screw groove 53 between the screw shaft 51 and the nut 52.

  Also in the example device 10C, as in the devices of the first to third embodiments described above, there are no horizontal portions or extreme bent portions that obstruct the transfer of the balls P and Q in the ball transfer path. , Q can be smoothly supplied between the screw shaft of the ball screw 50 and the nut without stagnation.

  In addition, since the component temporary holding means 48 and the ball push-in rods 29 and 30 driven by the fluid cylinder device 40 are provided, the excellent action of more reliably supplying the balls P and Q into the ball screw 50 is achieved. There is an effect.

  The above-described embodiments and examples of the different-part supply devices 10 to 10C according to the present invention are examples, and the present invention is of course not limited to these embodiments. Modifications other than the above are also included in the scope of the present invention without departing from the gist.

  In the above-described embodiments and examples, the dissimilar parts supply device 10 to 10C that drops the dissimilar parts downward by gravity is used. However, for example, a pressure fluid such as compressed air or pressurized oil is used as a forcible transfer medium for the dissimilar parts. Thus, the transfer direction can be other than the downward direction, for example, the horizontal direction, the upward direction, and the like. Of course, such an embodiment is also included in the scope of the present invention.

  Furthermore, the apparatus of the present invention has been described with respect to the different-part supply apparatuses 10 to 10C. However, according to the above-described technical idea of the present invention, the apparatus can be applied to a wide range of fields including the apparatus of the present invention. Included in the range.

BRIEF DESCRIPTION OF THE DRAWINGS It is drawing which concerns on 1st Embodiment of the dissimilar-parts supply apparatus based on this invention, Among these, FIG. 1 (a) is the longitudinal cross-sectional view, FIG.1 (b) is used in the apparatus of FIG. FIG. It is drawing concerning 2nd Embodiment of the different component supply apparatus which concerns on this invention, and is a longitudinal cross-sectional view of the principal part. It is drawing concerning 3rd Embodiment of the dissimilar-component supply apparatus which concerns on this invention, and is a top view of the intermediate | middle disc corresponded to the intermediate plate of 1st and 2nd embodiment. FIG. 4A is a front view of the ball insertion device according to the embodiment of the present invention, FIG. 4A is a front view thereof, and FIG. 4B is a right side view of the device of FIG. 4 shows a ball supply unit of the apparatus of FIG. 4, in which FIG. 5 (a) is a front view thereof, and FIG. 5 (b) is a right side view of the ball supply unit of FIG. 5 (a). FIG. 6A is a plan view of the slide portion of the apparatus of FIG. 4, FIG. 6B is a front view of a cross section of the main portion of the slide portion, and FIG. 6C is FIG. It is the left view which looked at the EE sectional view of the slide part of a) from the arrow direction. FIG. 7A is a front view of the workpiece receiving portion, and FIG. 7B is a right side view of the workpiece receiving portion of the apparatus shown in FIG. FIG. 8A is an enlarged cross-sectional view of the component temporary holding means shown in FIG. 7, FIG. 8A is a front view thereof, and FIG. 8B is a right side view thereof. FIG. 9A is an overall view of a conventional ball insertion device, in which FIG. 9A is a front view thereof, and FIG. 9B is an enlarged perspective view of a ball insertion jig described in FIG. 9A. .

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Intermediate | middle board 2, 2C Ball supply part 2D Slide part 2E Work receiving part 3, 3C Lower board 4 Upper board 5, 6 Supply pipe 7, 8 Individual component supply hole 9 Common component supply hole 10-10C Different component supply apparatus (this invention)
DESCRIPTION OF SYMBOLS 11 Left component side separate component supply hole 12 Right side separate supply hole 13 Spacer 14 Drive part 15 Control part 17a 1st sensor 17b 2nd sensor 29, 30 Push-in bar 47 Lifting device 48 Parts temporary holding means 49 Stop / release means 50 Ball screw (work)

Claims (8)

Two fixed individual component feed holes that allow different types of components to pass through;
An intermediate plate that includes an intermediate supply hole that allows the component that has passed through the individual component supply hole to pass therethrough, and moves between the individual component supply holes;
The dissimilarity is provided with a common component supply hole provided between the individual component supply holes on the side opposite to the individual component supply holes of the intermediate plate and allowing the components that have passed through the intermediate supply holes to pass therethrough. Parts supply device.   The common component supply hole is located in the middle of the two individual component supply holes, and two intermediate supply holes are provided in the intermediate plate. The interval between the two intermediate supply holes is one or the other of the common component supply hole and the other. The disparate component supply device according to claim 1, wherein the disparity component supply device is equal to the interval between the individual component supply holes.   3. The dissimilar component supply apparatus according to claim 1, wherein the two fixed individual component supply holes, the intermediate supply hole, and the common component supply hole are located on the same straight line.   The dissimilar component supply apparatus according to claim 1, wherein the two fixed individual component supply holes, the intermediate supply hole, and the intermediate supply hole are located on a circumference having the same radius.   5. The dissimilar component supply device according to claim 1, wherein the intermediate plate is provided with a drive unit that passes through the common component supply hole and reciprocates or rotates in the forward and reverse directions.   A sensor for detecting a component supplied from the common component supply hole and a component temporary holding means positioned below the sensor are provided below the common component supply hole, and based on the detection means of the sensor, the sensor 6. The dissimilar component supply apparatus according to claim 1, wherein the component held by the component temporary holding unit is supplied by releasing the component temporary holding unit. The dissimilar component push hole between two fixed individual component feed holes and corresponding to the arrangement position of the common component feed hole, and the temporary hold of the component from the dissimilar component push hole through the intermediate supply hole and the intermediate supply hole A push rod that can be pushed to the means, and
The component temporarily held by the component temporary holding means is supplied by inserting the push rod from the different component push hole to the component temporary holding means. Different parts supply equipment.   The component is a ball screw ball, and the supply destination of the ball from the component temporary holding unit is a ball female screw unit held by a work receiving unit located below the component temporary holding unit. The dissimilar-part supply apparatus of Claim 7.

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