JP2017128415A - Aligning device for columnar component with recess on one side and aligning method for columnar component with recess on one side - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aligning device for a columnar component with a recess on one side capable of efficiently aligning the columnar component.SOLUTION: An aligning device for a columnar components with a recess on one side comprises: a rotary block; a rotary drive part; a stopper; a recess position determination part; and a control part. The block has a through-hole, and the rotary drive part turns the rotary block to change a longitudinal orientation of the through-hole. The stopper controls movement of the columnar component inserted into the through hole, and the recess position determination part determines a position of a recess of the columnar component inserted into the through hole. The control part controls the stopper and the recess position determination part to turn the rotary block up to a predetermined position on the basis of a determined result of the recess position determination part, and then releases the stopper.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a columnar part aligning device with a single-sided concave part and a columnar part aligning method with a single-sided concave part.

  A single-sided columnar part having a recess on one bottom surface of the column is widely used. The columnar part with a single-sided recess here is one in which the thickness of the column is substantially constant and has a recess on one of the two bottom surfaces.

  An example is shown in FIG. The single-sided recessed columnar part 800 includes a side surface portion 810 that contacts the side surface of the column body, a head portion 820 having the same diameter as the side surface portion 810, and a tip end portion 830 that corresponds to the bottom surface opposite to the head portion. The head 820 has a recess 840.

  A typical so-called columnar part with a recess is a part called imemo screw. The female screw is a screw having a screw head having the same size as the screw portion. Immo screws are also called tome screws, male screws, mussels, imobis and set screws. Since the female screw does not have a large-diameter head, it can be embedded to the same plane as the member. For this reason, for example, it is used when a cam or attachment is fixed to the tip of a motor shaft. This is because, when using a grub screw, the protrusion of the screw head does not come out on the rotating part, so it does not get caught during rotation and is excellent in safety.

  In general, the female screw has a recess at one end, which is called “slot” or “hole” for inserting a rotary tool. FIG. 18 shows an example of an immobilizer screw. The female screw 900 has a cylindrical body 910, and a thread 920 is formed on the body 910. A screw head 930 having the same diameter as the body 910 is provided with a recess 940 for inserting a tool. In this example, the recess 940 is hexagonal so that a hexagon wrench can be fitted. The end opposite to the screw head 930 is a screw tip 950, and in this example, a shape that is convex outward is shown.

  In addition, although the following description is given by using a female screw as a representative example, it is also applicable to a general columnar part with a single-sided recess.

  Since the above-mentioned female screw is used by inserting a tool into the hole, it is convenient to align the direction of the recess in one direction. However, in the case of a female screw, since the diameters of the screw head and the screw tip are the same, there is a problem that the direction of the concave portion cannot be aligned by a simple method. For this reason, various methods have been devised that make it possible to align the recesses of the female screw. In the following description, for the sake of simplicity, aligning the direction of the recesses is referred to as “alignment”.

  For example, Patent Document 1 discloses a method in which a plurality of screw storage holes are provided in a rotating disk, and a pin that fits into a recess of a female screw is provided at the bottom of the screw storage hole for aligning female screws. In this technique, first, the grom screws are sequentially inserted from the feeder into the screw accommodation holes. At this time, if the head of the female screw is directed to the bottom of the screw storage hole, the concave portion is fitted to the pin, the female screw is stored in the screw storage hole, and the concave portion is aligned and sent to the next step. On the other hand, when the screw tip without a recess faces the bottom of the screw storage hole, the female screw is not stored in the screw storage hole but is repelled to return to the original feeder.

  Further, Patent Document 2 discloses a technique in which a sorting shaft is inserted into a hopper in which the female screws are stacked and taken out one by one with the directions of the female screws aligned. The sorting shaft has a screw storage hole for storing the female screw at its tip, and a sensor for determining the direction of the concave portion of the stored female screw is provided below the screw storage hole. In the sorting operation, first, the selection shaft moves to store one grub screw in the screw storage hole. If the concave portion is directed in a predetermined direction (for example, the concave portion is on the sensor side), the female screw is passed to the next process. If the concave portion is in the opposite direction, the female screw is discharged from the screw storage hole and returned to the hopper.

JP-A 63-037016 Japanese Patent Laid-Open No. 03-287325

  However, in the technique of Patent Document 1, the immobility screw that has reached the rotating disk without the direction of the concave portion being directed to the predetermined direction is returned to the feeder. In other words, the female screw whose concave portion is directed in the opposite direction to the predetermined direction is not sent to the next process, and the alignment is postponed until it reaches the rotating disk next time. For this reason, there exists a problem that the efficiency of alignment is bad. Further, the technique of Patent Document 2 also has a problem in that the efficiency of alignment is poor as in Patent Document 1, because the female screw housed in the screw housing hole in the reverse direction is returned to the hopper.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a female screw aligning device capable of efficiently aligning female screws.

  In order to solve the above-described problem, the columnar part aligning device with a single-sided concave portion of the present invention includes a rotating block, a rotation driving unit, a stopper, a concave portion position determining unit, and a control unit. The rotating block has a through hole, and the rotation driving unit rotates the rotating block so as to change the direction of the length of the through hole. The stopper restricts the movement of the single-side recessed columnar part inserted into the through hole, and the concave position determining unit determines the position of the concave part of the single-sided concave columnar part inserted into the through hole. The control unit controls the rotation driving unit, the stopper, and the recessed portion position determining unit, and rotates the rotating block to a predetermined position based on the determination result of the recessed portion position determining unit to release the stopper.

  An effect of the present invention is to provide an immobilizer alignment device that can efficiently align immobilizer screws.

It is a block diagram which shows the columnar component alignment apparatus with a single-sided recessed part of 1st Embodiment. It is sectional drawing which shows the ginger screw alignment apparatus of 2nd Embodiment. It is sectional drawing which shows the operation example of the ginger screw alignment apparatus of 2nd Embodiment. It is sectional drawing which shows another example of operation | movement of the ginger screw alignment apparatus of 2nd Embodiment. It is sectional drawing which shows the ginger screw alignment apparatus of 3rd Embodiment. It is a flowchart which shows operation | movement of the ginger screw alignment apparatus of 3rd Embodiment. It is sectional drawing which shows the ginger screw alignment apparatus of 4th Embodiment. It is sectional drawing which shows the ginger screw alignment apparatus of 5th Embodiment. It is sectional drawing which shows a part of ginger screw alignment apparatus of 5th Embodiment. It is sectional drawing which shows the operation example of the ginger screw alignment apparatus of 5th Embodiment. It is sectional drawing which shows another example of operation | movement of the ginger screw alignment apparatus of 5th Embodiment. It is a perspective view which shows a part of ginger screw alignment apparatus of 6th Embodiment. It is sectional drawing which shows the example of the female screw direction determination part of 7th Embodiment. It is sectional drawing which shows another example of the female screw direction determination part of 7th Embodiment. It is a block diagram which shows the ginger screw supply apparatus of 8th Embodiment. It is sectional drawing which shows the specific example of the ginger screw supply apparatus of 8th Embodiment. It is a perspective view which shows an example of the columnar component with a general single-sided recessed part. It is a perspective view which shows an example of a common potato screw.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is a block diagram illustrating a columnar part aligning device with a single-sided recess according to a first embodiment.

  The columnar part aligning device with a single-side recessed portion includes a rotating block 1, a rotation driving unit 2, a stopper 3, a recessed portion position determining unit 4, and a control unit 5. The rotating block has a through hole 6.

  The rotation drive unit 2 is controlled by the control unit 5 and rotates the rotation block 1 so that the direction of the through hole 6 in the length direction is changed.

  The stopper 3 restricts the movement of the columnar part with a single-sided recess inserted into the through hole 6 under the control of the control unit 5. Specifically, it has a function of preventing the position of the columnar part with a single-sided concave portion from changing by inserting or removing a member that hinders movement in the through hole or by reducing the diameter of the through hole.

  The recess position determining unit 4 determines the position of the recess of the columnar part with a single-sided recess that is inserted into the through hole 6 in the axial direction substantially parallel to the through hole 6 and restricted in movement by the stopper 3. Although the determination method is arbitrary, for example, the distance from the recess position determination unit 4 to the columnar part with a single-sided recess differs depending on whether the recess is facing outward or the tip having no recess is facing outward. Can be determined using. Alternatively, it can be determined by identifying whether or not a concave portion is facing outward in image recognition.

  Next, the operation will be described. First, a columnar part with a single-sided recess is inserted into the through hole 6 and held in place by the stopper 3. Next, the recessed part position determination part 4 determines the position of the recessed part of a columnar part part with a single-sided recessed part. The determination can be made by identifying whether or not the recess is facing outward (in the direction of the recess position determination unit 4). If the position of a recessed part can be determined, the rotation block 1 will be rotated so that a recessed part may face a predetermined direction. That is, based on the determined position of the concave portion, when the concave portion is facing the concave portion position determining unit 4, the rotating block is rotated by an amount corresponding to each when the concave portion is not facing. Then, the stopper is released and the columnar part with the concave portion on one side is discharged from the through hole 6.

  If it is set as the above operation | movement, even if the recessed part of the columnar component with a single-sided recessed part inserted in the through-hole 11 has faced, the direction of a recessed part can be aligned in a predetermined direction without any omission. That is, it is possible to efficiently align the columnar parts with single-sided recesses.

(Second Embodiment)
The following description will be made using a ginger screw as a representative example, but it is also applicable to a general columnar part with a single-sided recess.

  FIG. 2 is a cross-sectional view showing the grommet alignment device of the present embodiment. Here, aligning means aligning the direction of the recesses of the female screw.

  The female screw alignment apparatus includes a rotary block 10, a motor 20, a stopper 30, a recessed portion position determination unit 40, and a control unit 50.

  The rotating block 10 has a through hole 11. The diameter of the through hole 11 is set so that the axial direction of the set screw 60 is substantially parallel to the through hole 6 and the through hole 6 can be moved without resistance.

  The motor 20 is controlled by the control unit 50 and rotates the rotary block 10 around the rotary shaft 21 so that the direction of the through hole 11 in the length direction changes.

  The stopper 30 restricts the movement of the female screw 60 inserted into the through hole 11 under the control of the control unit 50. In the example of FIG. 2, a configuration is shown in which the stopper head 31 slides in and out of the through hole 11. Further, in this example, the stopper head 31 has a stepped tip, which inhibits the progress of the tip of the female screw, and the position is also fixed by pressing the body of the female screw 60 against the wall surface of the through hole 11. I try to do it. The configuration of the stopper 30 is not limited to this. In FIG. 2, the stopper 30 and the motor 20 are provided on the same side of the rotary block 10, but they may be provided on different sides.

  The recess position determination unit 40 determines whether the end of the female screw fixed in the through hole 11 by the stopper 30 (the upper end in FIG. 2) faces the screw tip 61 or the screw head 62. Determine the position. Although the determination method is arbitrary, for example, a difference in the distance from the recess position determination unit 40 to the immobilizer 60 caused by a difference in shape between the screw tip and the screw head is detected, or the shape of the end is identified by image recognition. Can be determined.

  Next, the operation will be described. First, the stopper head 31 of the stopper 30 is partially inserted into the through hole 11, and the female screw 60 is inserted into the through hole 11 so that the axial direction is substantially parallel to the length direction of the through hole 11. Then, the stopper head 31 is further moved to the back side of the through hole 11, and the body screw 60 is pressed against the wall surface of the through hole to fix the arm screw 60. Next, the recess position determination unit 40 determines the position of the recess. At this time, the rotary block 10 may be rotated by a predetermined amount, and the female screw 60 (screw head 62 in FIG. 2) may be directed to the concave position determination unit 40. Here, two types of states may occur: the case where the screw tip 61 faces the recess position determination unit 40 and the case where the screw head 62 faces the recess position determination unit 40. The operation will be described separately for each case. In the following description, it is assumed that the direction in which the concave portion 63 faces upward in FIG. 2 is a predetermined direction for aligning the female screws. Further, it is assumed that the downward direction in FIG. 2 is the ground direction.

  First, the case where the recessed portion 63 of the inserted female screw 60 faces upward will be described. In this case, the recess position determination unit 40 determines that the recess 63 faces the recess position determination unit 40 (FIG. 3A). Then, the motor 20 rotates the rotating block 10 according to an instruction from the control unit 50 so that the concave portion 63 faces upward. In the case of FIG. 3, the concave portion faces upward from the beginning, and therefore does not rotate. Next, the stopper 30 pulls out the stopper head 31 from the through hole (FIG. 3B). Since the female screw can be moved when the stopper 30 is released, the female screw 60 is discharged from the through hole with the concave portion 63 facing upward in FIG. The screw screw 60 can be discharged by applying an external force such as sending air from the opposite side of the through hole (upper side in the figure). However, if the discharge side is the ground side, the screw screw 60 will naturally move due to the action of gravity. It is efficient because it falls.

  Next, a case where the concave portion 63 faces downward will be described. First, the recess position determination unit 40 determines the position of the recess. As a result, since the concave portion is not directed toward itself, it is determined that the position of the concave portion is at the position of the stopper head 31. (FIG. 4A). Then, in response to an instruction from the control unit 50, the motor 20 rotates the rotary block 10 so that the concave portion 63 faces upward (FIG. 4B). In this state, when the stopper head 31 is pulled out from the through hole 11 and the stopper 30 is released, the female screw 60 is discharged with the recess 63 facing upward.

  With the above operation, the tube screw inserted into the through hole can be discharged from the rotating block by aligning the tube screw with the concave portion facing upward, regardless of the direction of the screw tip or the screw head. . In the above description, the discharge direction of the female screw is the direction parallel to the gravity, but it may be another direction.

  As described above, according to the present embodiment, it is possible to efficiently align the female screws.

(Third embodiment)
FIG. 5 is a cross-sectional view showing the ginger screw alignment device of the present embodiment. In addition to the same configuration as that of the second embodiment, the female screw alignment device of this embodiment has an insertion sensor 70 that detects that the female screw 60 is inserted into the through hole 11. In addition, the same code | symbol is attached | subjected about the same element as a 2nd structure, and the description is abbreviate | omitted.

  The insertion sensor 70 can be a reflective photosensor that optically detects the presence of an object, for example. In the example of FIG. 5, the rotating block 10 is provided with a window 12 that serves as a path for light. The insertion sensor 70 detects the presence or absence of the female screw 60 through the window 12. The insertion sensor 70 is arranged so that it can detect whether or not the female screw 60 is at a predetermined determination position. In FIG. 5, the motor 20, the stopper 30, and the insertion sensor 70 are provided on the same side of the rotating block, but each may be provided in different directions. Moreover, it is good also as a structure which provides a window on both sides of a through-hole, and uses a light transmission type | mold insertion sensor, and lets the fiber sensor head pass through the window 12.

  When the insertion sensor 70 is not provided as in the second embodiment, the stopper must be moved in time for the timing of inserting the female screw 60. On the other hand, when the insertion sensor 70 is used, the detection of the female screw by the insertion sensor 70 and the operation of the stopper can be linked. For this reason, there is no need to worry about the timing of inserting the female screws, and the efficiency of aligning the female screws is improved.

  Next, the operation of the female screw alignment apparatus will be described. FIG. 6 is a flowchart showing the operation of the ginger screw alignment device. In the following description, the direction in which the recessed portion becomes the predetermined direction when the ginger screw is discharged from the through hole opening opposite to the insertion side is the positive direction, and the direction in which the recessed portion becomes the predetermined direction when discharged from the insertion side opening. This is called the reverse direction.

  First, the stopper is inserted halfway into the through hole to prevent the grommet screw from passing (S1). Next, when the female screw is inserted, the insertion sensor detects the female screw (S2). When the female screw is detected, a stopper is further inserted to fix the female screw (S3). Next, the recess position determination unit determines the position of the recess (S5). If the direction of the female screw is the forward direction (S5_Yes), the through hole opening on the opposite side from where the female screw is inserted is rotated in a predetermined direction (S6). Then, the stopper is released and the female screw is discharged from the through hole (S8). At this time, if the predetermined direction is set lower than the rotation axis, the grommet screw falls from the through hole in the predetermined direction by the action of gravity. Then, the insertion sensor detects the discharge of the ginger screw and ends (S9).

  On the other hand, when the recess position determination unit determines that the position of the recess is not a forward position (a reverse position) (S5_No), the through hole opening on the side where the grub screw is inserted is rotated so as to face a predetermined direction. The block is rotated (S7). Next, the stopper is released and the female screw is discharged (S8). Then, the insertion sensor detects the discharge of the ginger screw and ends (S9).

  With the above-described operation, it is possible to efficiently align the female screws in a predetermined direction regardless of whether the female screws are inserted in the forward direction or the reverse direction.

(Fourth embodiment)
In the second and third embodiments, the example in which the stopper 30 includes the stepped stopper head 31 is shown, but other methods may be used.

  FIG. 7 is a cross-sectional view showing a female screw aligning device using a telescopic actuator as a stopper. Since elements other than the stopper are the same as those in the third embodiment, the same elements are denoted by the same reference numerals and description thereof is omitted.

  The stopper 30 has a telescopic actuator 32. The expansion / contraction actuator 32 is a member that expands and contracts by an electric signal, for example, and expands and contracts under the control of the control unit 50. Specifically, a polymer material used as an artificial muscle, a shape memory metal formed in a coil shape, or the like can be used.

  The telescopic actuator 32 of this embodiment is controlled by an electrical signal from the driver 33, and the driver 33 is controlled by the control unit 50.

  When the female screw 60 is inserted into the through hole 11, the movement of the female screw 60 can be limited or fixed by contracting the telescopic actuator 32. That is, if the inner diameter of the telescopic actuator 32 is increased, the female screw 60 passes, and the inserted female screw 60 can be stopped and fixed by reducing the inner diameter. By the above control, the stopper 30 is validated and released. The operation as the female screw alignment device is the same as that of the third embodiment. By using the telescopic actuator 32 for the stopper 30, alignment can be performed without giving an impact to the female screw 60.

(Fifth embodiment)
The stoppers of the second to fourth embodiments fix the female screw in the through hole. However, the stopper may be semi-fixed by closing the through hole without fixing. FIG. 8 is a cross-sectional view showing a ginger screw aligning device using such a stopper. Note that the same elements as those in the third embodiment are denoted by the same reference numerals and description thereof is omitted.

  The stopper head 31a is, for example, a single plate, and functions as a stopper by entering and retracting into the through hole 11. With such a configuration, the structure and operation of the stopper can be simplified. In addition, since the stopper does not completely fix the female screw 60, the female screw can be securely held within a predetermined range without precisely controlling the timing of inserting the stopper. On the other hand, the grub screw 60 may fall off from the insertion side opening. For this reason, in this embodiment, a guide is provided to prevent the dropout.

  FIG. 9 is a cross-sectional view showing a configuration in which the rotating block 10, the stopper head 31a, the guide 80, and the concave position determination unit 40 are extracted. The female screw 60 is inserted into the through-hole 11 from the horizontal direction and is prevented from advancing by the stopper head 31a. Note that the lower side of FIG. 9 is the ground direction. The guide 80 covers from the horizontal direction in which the female screw 60 is inserted to the downward direction in which the female screw 60 is discharged.

  If the guide 80 is not present and the rotary block 10 rotates counterclockwise from this state, the grub screw 60 will fall out of the through hole due to the action of gravity, but the guide 80 prevents the drop off. In this example, the recess position determination unit 40 is arranged at the upper left of the drawing, and the rotary block 10 is rotated so that the set screw 60 faces the recess position determination unit 40 when the recess position is determined.

  Next, the operation will be described. Similar to the other embodiments, there are cases where the female screw 60 is inserted into the through hole 11 from the screw tip 61 and sometimes inserted from the screw head 62, which will be described separately. Here, it is assumed that the downward direction in the figure is the ground direction, and the female screw 60 is aligned with the concave portion 63 facing upward.

  FIG. 10 is a cross-sectional view showing the operation when the grub screw is inserted so that the screw head 62 is behind. First, as shown in FIG. 10A, with the through hole 11 in a horizontal state, the stopper head 31a is inserted into the through hole 11 and the female screw 60 is inserted. Next, the rotation block 10 is rotated clockwise, and the opening of the through hole 11 on the insertion side is directed toward the recess position determination unit 40 to perform the recess position determination (FIG. 10B). The arrows in the figure schematically represent the determination operation. Here, it is determined that the recess 63 faces outward. Then, a control part (not shown) rotates the rotation block 10 further clockwise (FIG.10 (c)). Then, the stopper head 31a is retracted with the insertion side opening of the through hole 11 facing upward (FIG. 10 (d)). As a result, the female screw 60 falls with the screw tip 61 facing downward.

  Next, the operation when the female screw 60 is inserted in the reverse direction will be described. FIG. 11 is a cross-sectional view showing the operation when the female screw 60 is inserted into the through hole 11 so that the screw tip 61 is behind.

  First, as shown in FIG. 11A, with the through hole 11 in a horizontal state, the stopper head 31a is inserted into the through hole 11 and the female screw 60 is inserted. Next, the rotation block 10 is rotated clockwise, and the opening of the through-hole 11 on the insertion side is directed toward the recess position determination unit 40 to perform the recess position determination (FIG. 11B). The arrows in the figure schematically represent the determination operation. Here, it is determined that the concave portion 63 faces the stopper side. Then, a control part (not shown) rotates the rotation block 10 counterclockwise. Here, when the screw tip 61 of the female screw is directed downward from the horizontal, a force is applied to drop the female screw 60 by the action of weight, but the guide 80 comes into contact with the screw tip 61 and the falling of the female screw 60 is prevented (FIG. 11). (C)). When the insertion side opening of the through hole 11 is directed downward, the guide is cut, so that the female screw 60 falls with the screw tip 61 directed downward (FIG. 10D).

  As described above, according to the present embodiment, it is possible to reliably align the female screws while simplifying the configuration and operation of the stopper.

(Sixth embodiment)
FIG. 12 is a perspective view illustrating a specific example of the arrangement of the rotation block 10 and the stopper 30, the insertion sensor 70, and the motor 20 with respect to the rotation block 10.

  In FIG. 12A, the rotary block 10 is cylindrical, and a stopper 30 and an insertion sensor 70 are provided on one side of the cylindrical bottom surface. Moreover, the motor 20 is provided on the bottom surface opposite to these. The through hole 11 is provided so as to penetrate from the side surface of the cylinder to the opposite side surface.

  In FIG. 12B, the rotary block 10 has a shape in which a part of a cylindrical shape is cut out. And the stopper 30 is provided in the bottom face of the cylindrical piece side, and the motor 20 is provided in the bottom face on the opposite side. The insertion sensor 70 is provided in the notch. The through hole 11 is provided so as to penetrate from the side surface of the cylinder to the opposite side surface.

  In FIG. 12C, the rotating block is a quadrangular prism. The through hole 11 is provided so as to penetrate from the bottom surface of the quadrangular column to the opposite bottom surface. The stopper 30 and the insertion sensor 70 are provided on one side of the quadrangular prism, and the motor 20 is disposed on the opposite side.

(Seventh embodiment)
In the present embodiment, a specific configuration example of the recess position determination unit 40 will be described. FIG. 13 is a cross-sectional view showing an example using an optical distance sensor. As the distance sensor, for example, a sensor that uses infrared rays to determine a distance based on an imaging position or a phase difference of reflected light can be used.

  In FIG. 13A, the screw head 60 is inserted into the through hole 11 of the rotary block 10 with the screw head 62 directed toward the reflective recess position determination unit 40a, and the stopper head 31a stops the screw screw 60. At this time, the light 41 emitted from the recess position determination unit 40a is reflected by the bottom of the recess 63 and returns to the recess position determination unit 40a, and the distance is measured.

  In FIG. 13 (b), the female screw 60 is inserted into the through hole 11 of the rotary block 10 with the screw tip 61 directed toward the reflective concave position determination unit 40 a, and the stopper head 31 a stops the female screw 60. At this time, the light emitted from the recess position determination unit 40a is reflected by the screw tip 61 and returns to the recess position determination unit 40a, and the distance is measured.

  The recess position determination unit 40a can determine the position of the recess 63 based on the measured distance and a predetermined threshold value. As the distance sensor, a mechanical sensor that physically contacts the probe can also be used.

  Even using image recognition, the position of the recess can be determined. FIG. 14 shows a specific example. The recess position determination unit 40 in this case uses an imaging device and an image processing program. FIG. 14A is an image in the case where the female screw 60 has a hexagonal hole 63a, and it is determined that the screw head 62 is facing the screw head 62 by image recognition and that the concave portion is at the insertion side position. it can. FIG. 14B is an image when the female screw 60 has a minus groove 63b, and it can be determined by image recognition that the screw head 62 is directed to itself and the concave portion is at the insertion side position. . FIG. 14C is an image in the case where the screw tip 61 of the female screw 60 faces the recess position determination unit 40. The screw tip 61 is directed to itself by image recognition, and the recess is on the stopper side. It can be determined that the position is present.

(Eighth embodiment)
By combining the female screw aligning device of the first to fifth embodiments and the female screw cutting device that supplies and supplies the female screw in an aligned manner, it is possible to configure the female screw supply device that aligns the direction of the female screw and supplies it to other devices. . FIG. 15 is a block diagram showing such a female screw supply apparatus. The female screw supply device 100 includes a female screw cutting device 110 and a female screw aligning device 120.

  FIG. 16 is a cross-sectional view showing a specific example of the female screw supply device 100. The ginger screw cutting device 110 in this example is a pin feeder generally called a drum feeder. The female screw cutting device 110 includes a drum 111, a driving roller 112 that rotates the drum, and a rail 113 that conveys the female screw 60 taken out from the drum in a line in the axial direction of the screw. A honey 114 is provided inside the drum 111.

  A drum screw 60 is inserted in the drum 111 in a random direction. When the drum 111 is rotated. Honey 114 scoops up the female screw 60, drops the female screw 60 from above the rail 113, and places the female screw 60 on the rail 113. When the female screw 60 is inclined with respect to the rail 113, it falls into the groove (not shown) of the rail 113 and falls from the rail. The rail 113 moves in the horizontal and vertical directions with a size of a few millimeters of commas, thereby moving the grub screw 60 on the rail 113 to the outside from the drum 111 side. As a result, the female screws 60 can be conveyed one by one on the rail 113. However, the direction of the screw head and the screw tip of the female screw 60 conveyed at this time is random.

  The female screw cutting device 110 and the female screw aligning device 120 are connected so that the female screw 60 reaching the tip of the rail 113 is inserted into the through hole 11 of the rotary block 10. The female screw cutting device 110 may be a mechanism that aligns the female screws 60 one by one as shown in FIG. 16 and moves them to the through hole 11 of the rotating block 10, and the shape / mechanism is not limited to the drum feeder. .

  The female screw 60 supplied from the female screw cutting device 110 to the female screw aligning device 120 is aligned by the alignment operation of any of the first to fifth embodiments, and is distributed to the outside. In the example of FIG. 16, the example distributed to the ginger screw conveying apparatus 200 is shown.

  As described above, according to the present embodiment, it is possible to distribute the external screws that have been randomly inserted by the person into the external thread extraction device with the direction thereof being efficiently aligned.

  In the second to eighth embodiments described above, the imine screw has been described as a representative example. However, these embodiments can be applied to general columnar parts with concave parts on one side by replacing the above-mentioned female screws with columnar parts with concave parts on one side.

  The scope of the present invention also includes a program for causing a computer to execute the processes of the first to fifth and sixth to eighth embodiments described above and a recording medium storing the program. As the recording medium, for example, a magnetic disk, a magnetic tape, an optical disk, a magneto-optical disk, a semiconductor memory, or the like can be used.

  The present invention has been described above using the above-described embodiment as an exemplary example. However, the present invention is not limited to the above embodiment. That is, the present invention can apply various modes that can be understood by those skilled in the art within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1, 10 Rotation block 2 Rotation drive part 3, 30 Stopper 4, 40 Recess position determination part 5, 50 Control part 6, 11 Through hole 12 Window 20 Motor 31 Stopper head 32 Telescopic actuator 33 Driver 60, 900 Immo screw 61, 950 Screw Point 62, 930 Screw head 63, 840, 940 Recess 70 Insertion sensor 80 Guide 100 Female screw supply device 110 Female screw extraction device 120 Female screw alignment device 200 Female screw conveying device 800 Column part with single-side concave portion 810 Side surface portion 820 Head portion 830 Tip portion 910 Body 920 Screw thread

Claims (10)

A rotating block having a through hole;
A rotation drive unit that rotates the rotating block so as to change the direction of the length direction of the through hole;
A stopper that limits the movement of the columnar part with a single-sided recess inserted into the through hole;
A recess position determination unit that determines the position of the recess of the columnar component with the single-side recess inserted into the through hole;
A control unit that controls the rotation drive unit, the stopper, and the recess position determination unit;
The controller is
Based on the determination result of the recess position determination unit, the rotating block is rotated to a predetermined position,
A columnar part aligning device with a single-sided recessed part, wherein the stopper is controlled to be released at the predetermined position.   The column part component aligning device with a single-sided recessed part according to claim 1, further comprising an insertion sensor that detects the presence of the columnar part with the single-sided recessed part inserted into the through hole.   The said predetermined position is a position which falls from the said through-hole by the effect | action of gravity in the state in which the said recessed part of the columnar part with a concave part on one side faced the predetermined direction, The Claim 1 or Claim 2 characterized by the above-mentioned. The columnar part alignment apparatus with a single-sided recessed part of description.   4. The guide according to claim 3, further comprising a guide for preventing the columnar part with a single-sided recess inserted into the through-hole and restricted in movement by the stopper from dropping from the through-hole except at the predetermined position. The columnar part alignment apparatus with a single-sided recessed part of description.   The said stopper fixes the said columnar part with a single-sided recessed part so that the axial direction of the said columnar part with a single-sided recessed part may become substantially parallel to the length direction of the said through-hole. 4. A columnar part aligning device with a single-sided recessed part according to any one of claims 4.   The columnar part with a single-sided recess is a columnar part with a single-sided concave part with the concave part facing in a random direction when the bottom surface where the concave part of the columnar part with a single-sided concave part is formed is the head and the other bottom surface is the tip part. 6. A columnar component cutting device with a single-sided concave portion that sends the frontal portion or head of the body component while aligning them first, and a columnar component aligning device with a single-sided concave portion according to any one of claims 1 to 5. The columnar part cutting device with a single-sided concave part sequentially supplies the columnar part with the single-sided concave part to the columnar part aligning apparatus with a single-sided concave part, and the columnar part aligning apparatus with the single-sided concave part has the single-sided concave part A columnar component supply device with a concave portion on one side, wherein the concave portion of the columnar component is discharged in a predetermined direction. Insert a columnar part with a concave on one side into a rotating block having a through hole,
Limit the movement of the column part with a single-sided recess inserted into the through hole,
Rotating the rotating block to change the direction of the length of the through hole,
Determining the position of the concave portion of the columnar part with the concave portion on one side inserted into the through hole,
Rotate the rotating block to a predetermined position based on the determination result of the position of the recess,
A columnar part aligning method with a concave part on one side, wherein the stopper is released at the predetermined position.   A columnar part aligning method with a single-sided concave part, wherein the columnar part with a single-sided concave part is detected to be inserted into the through hole.   The single-sided concave portion according to claim 7 or 8, wherein the columnar part with the single-sided concave portion is dropped from the through hole in a state where the concave portion is directed in a predetermined direction by the action of gravity at the predetermined position. Column body part alignment method. Inserting a columnar part with a concave portion on one side into a rotating block having a through hole;
Limiting the movement of the columnar part with a single-sided recess inserted into the through hole; and
Rotating the rotary block to change the direction of the length of the through hole;
Determining the position of the concave portion of the columnar part with concave portion on one side;
Rotating the rotating block to a predetermined position based on the determination result of the position of the recess;
And a step of releasing the stopper at the predetermined position.

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