JP5520541B2 - Spherical component sorting member and spherical component sorting device - Google Patents

Description

  The present invention relates to a spherical component sorting member and a spherical component sorting device, and more specifically, a spherical component sorting member and a spherical component capable of sorting a desired spherical component with high sorting accuracy despite a simple configuration. It relates to a sorting device.

  In various fields, as a product or a semi-finished product, a rollable component having a spherical shape, a substantially spherical shape, an elliptical spherical shape, a cylindrical shape, or the like is used. When such a rollable part is manufactured, a group of parts in which a deformed part, a part in which a part is missing, a part having a diameter larger than a specified dimension, etc., is usually mixed is obtained. Therefore, it is desired to select a spherical part having a specified dimension, for example, a radius within a predetermined tolerance range, from such a part group, preferably with high accuracy.

  For example, Patent Document 1 discloses a method and apparatus for measuring the outer diameter of a component. Specifically, “in the outer diameter measuring method for measuring the outer diameter of a workpiece, the workpiece is inserted into a hole to which a fluid is supplied, and the fluid passes through the gap between the hole inner wall and the workpiece. An outer diameter measuring method characterized by detecting a back pressure, a flow rate, a drag force received by the workpiece, or a displacement amount of the workpiece, and comparing the detected value with a reference value to convert the detected value into an outer diameter of the workpiece. In the outer diameter measuring apparatus for measuring the outer diameter of the workpiece, the hole for inserting the workpiece, the fluid supply means for supplying fluid to the hole, and the fluid supplied by the fluid supply means Detecting means for detecting the back pressure of the fluid when passing through the gap between the hole inner wall and the work, the drag received by the work, or the displacement of the work, and the detection value detected by the detecting means Compared to the reference value, converted to the outer diameter of the workpiece That the conversion means, the outer diameter measuring device "which, comprising the in claim 3, respectively, are described.

  According to the outer diameter measuring method and the outer diameter measuring apparatus described in Patent Document 1, since the outer diameter of each part can be measured, these parts can be selected based on the measured outer diameter value.

  However, the outer diameter measuring method and the outer diameter measuring device measure the outer diameter of each part one by one, and it is necessary to select a large number of parts based on the measured values. Sorting requires a long measurement time and sorting time.

JP 2001-33042 A

  An object of the present invention is to provide a spherical component sorting member and a spherical component sorting device that can sort a desired spherical component with high sorting accuracy despite the simple configuration.

As means for solving the problems,
Claim 1 is a spherical component selection member for selecting the spherical component from a component group in which a spherical component having a radius equal to or smaller than the allowable maximum radius r and a large-diameter spherical component having a radius larger than the allowable maximum radius r are mixed. The spherical part selection member includes a rolling path through which the spherical part rolls and passes, and the rolling path is allowed in the plane perpendicular to the axis of the rolling path. A change in the axis that changes the rolling axis of the spherical part that has a contact inner surface that makes contact with at least half of the circumference of the spherical part and has a radius of curvature ρ , and rolls in the rolling path. It is a spherical part selection member characterized by having means ,
Claim 2 is the spherical component selection member according to claim 1, wherein the rolling path is a through hole or a through groove penetrating in the rolling direction of the spherical component.
Claim 3 is the spherical part selection member according to claim 1 or 2, wherein the rolling path has a path length equal to or greater than a circumference of the spherical part.
A fourth aspect of the present invention is the spherical component sorting member according to any one of the first to third aspects, comprising a plurality of the rolling paths.
5. The spherical component according to any one of claims 1 to 4, wherein the rolling path is arranged so as to descend forwardly on an extension line of a supply path that supplies the component group. A spherical component sorting device comprising: a sorting member; and a take-out member that takes out the large-diameter spherical component that is hooked in the rolling path of the spherical component sorting member.
The spherical component sorting member according to claim 4, which is arranged such that a part of the rolling path descends forward on an extension line of a supply path that supplies the component group, A switching member that arranges rolling paths other than the part of the rolling paths so as to descend toward the front on an extension line of a supply path that supplies the parts group, and the rolling of the spherical part selection member An apparatus for sorting spherical parts, comprising: a take-out member for taking out the large-diameter spherical part hooked in the road.

  The component selection member according to the present invention comprises a rolling path having a contact inner surface that is in contact with at least half of the circumference of the spherical component, where the allowable maximum radius r of the spherical component is the curvature radius ρ, and the allowable maximum radius is provided. A spherical part having a radius r rolls and passes through the rolling path, whereas a large-diameter spherical part having a radius larger than the maximum allowable radius r is allowed to substantially enter the rolling path. However, even if it enters, it does not pass the rolling path. As described above, the component selection member according to the present invention is high in the spherical component and the large-diameter spherical component due to the passage, non-entry or non-passage of the rolling path, although the configuration is simple. Sorting can be done with sorting accuracy.

  Since the spherical component sorting member according to the present invention includes the component sorting member according to the present invention, the spherical component and the large-diameter spherical component are sorted with high sorting accuracy even though the configuration is simple. can do.

  Therefore, according to the present invention, it is possible to provide a spherical component sorting member and a spherical component sorting member that can sort a desired spherical component with high sorting accuracy in spite of a simple configuration.

FIG. 1 is a schematic view showing a spherical component sorting member which is an example of a spherical component sorting member according to the present invention. FIG. 2 is a schematic explanatory view for explaining a state when the spherical component is rolled on the spherical component selection member which is an example of the spherical component selection member according to the present invention. FIG. 3 is a schematic view showing a spherical component sorting member which is another example of the spherical component sorting member according to the present invention. FIG. 4 is a schematic front view showing a spherical component sorting apparatus as an example of the spherical component sorting apparatus according to the present invention. FIG. 5 is a schematic front view showing a spherical component sorting apparatus as another example of the spherical component sorting apparatus according to the present invention. FIG. 6 is a schematic explanatory view illustrating a state in which a large-diameter spherical component is hooked in a rolling path in a spherical component selection member that is an example of a spherical component selection member according to the present invention.

  The spherical component selection member according to the present invention includes a spherical component and a large diameter from a group of components in which a spherical component having a radius equal to or smaller than the allowable maximum radius r and a large-diameter spherical component having a radius larger than the allowable maximum radius r are mixed. This is a sorting member for sorting out spherical parts. The spherical component selection member according to the present invention includes a rolling path through which the spherical component rolls and passes, and the rolling path is configured to allow the spherical component on a plane perpendicular to the rolling direction of the spherical component. One of the characteristics is that the maximum radius r is a curvature radius ρ and a contact inner surface is in contact with at least half of the circumference of the spherical part.

  The spherical component sorting member according to the present invention having such a rolling path allows the spherical component to roll and pass through the rolling path of the spherical component. A defective part such as a large diameter spherical part is not substantially entered, and the defective part that has entered the rolling path of the defective part is latched on the way to prevent the defective part from passing substantially through the rolling path. Among the group, spherical parts that have passed through the rolling path and defective parts that have not entered or stopped on the rolling path can be sorted with high sorting accuracy. Therefore, the spherical part selection member according to the present invention includes a rolling path in which the spherical part rolls, and the spherical part that rolls through the rolling path passes the defective part, for example, the rolling path. It can also be referred to as a spherical part sorting member that sorts from a defective part that does not enter or a defective part that does not pass through the rolling path.

  The spherical component sorting member according to the present invention can sort spherical components and large-diameter spherical components by passing, non-entering or non-passing through the rolling path, but in other words, it is fed into the rolling path. It can also be said that the spherical part and the large-diameter spherical part can be selected with high sorting accuracy depending on whether the rolling trajectory at the center of the spherical part or the large-diameter spherical part coincides with the axis of the rolling path.

  As described above, the spherical component sorting member according to the present invention having the above configuration sorts a desired spherical component with high sorting accuracy despite the simple configuration having a rolling path having a contact inner surface. can do.

  As described above, the spherical component selection member according to the present invention has one of the features that include the rolling path, and other configurations, for example, include the following specific modes. Based on this, it can be changed or improved as appropriate.

  The parts selected by the spherical part selection member according to the present invention are a group of parts in which spherical parts having a radius equal to or smaller than the allowable maximum radius r and large-diameter spherical parts having a radius larger than the allowable maximum radius r are mixed. , A spherical component group.

  The spherical component has a spherical surface and a radius that is equal to or less than the maximum allowable radius r. The allowable maximum radius r can also be referred to as a maximum radius r within a predetermined tolerance range of a product or a semi-finished product. Therefore, the spherical part can also be called a standard-compliant spherical part. Examples of such spherical components include bearing balls, balls for mechanical devices such as spherical members mounted on a pretension belt of a vehicle seat belt, ball balls such as golf balls and table tennis balls. . The spherical component selecting member according to the present invention is a member for selecting such a spherical component and a large-diameter spherical component having a radius larger than the allowable maximum radius r. It suffices to have a radius equal to or less than the radius r, and usually has a radius of 50 to 100% of the allowable maximum radius r, and particularly has a radius of 80 to 100%. Good.

  The large-diameter spherical component is a component that does not conform to the standard mixed in the production of the spherical component, and examples thereof include a deformed component, a partially missing component, and a component having a larger diameter than a specified dimension. In particular, a part having a radius that is larger than the allowable maximum radius r, such as a part having a slightly larger diameter than a specified dimension, a part having a spherical surface with a part of the surface being raised or protruded, etc. Sorting with parts is relatively difficult. However, according to the spherical component sorting member according to the present invention, even if these components are mixed in the component group as the large-diameter spherical components, these components and the spherical components can be sorted with high sorting accuracy. Therefore, a part or the like having a radius larger than the allowable maximum radius r in part or all is convenient as a large-diameter spherical part mixed in a part group selected by the spherical part selection member according to the present invention.

  In the spherical component selection member according to the present invention, the spherical component and / or the large-diameter spherical component included in the component group are continuously or intermittently supplied to one end side of the rolling path or the vicinity thereof. Although the spherical component sorting member according to the present invention can sort components, it can also be confirmed whether or not a specific component has a specific size and shape. A single part may be used for the sorting member.

  A spherical component sorting device according to the present invention comprises the spherical component sorting member according to the present invention, and a take-out member for taking out a large-diameter spherical component that is hooked in the rolling path of the spherical component sorting member. One of them. The spherical component sorting member according to the present invention having such a configuration, like the spherical component sorting member according to the present invention, has a simple configuration, but selects a desired spherical component with high sorting accuracy. Can do.

  The spherical component sorting device according to the present invention is characterized by including the spherical component sorting member according to the present invention and the take-out member, and the other configurations and the like are, for example, the specific examples shown below. Based on the aspect etc., it can change or improve suitably.

  Hereinafter, the spherical component sorting member according to the present invention and the spherical component sorting device according to the present invention will be described in detail.

  An example of a spherical component sorting member 1A in the spherical component sorting member according to the present invention includes a spherical component 30 as shown in FIGS. 1 (a), 1 (b), 2 (a), and 2 (b). In a plane perpendicular to the rolling direction (see FIG. 2B in particular), the allowable maximum radius r of the spherical part 30 is a curvature radius ρ, and the contact inner surface 16 that contacts the entire circumference of the spherical part 30 is formed. And a rolling path 11 through which the spherical part 30 rolls and passes.

  FIG. 1A is a left side view of the spherical component sorting member 1A, and FIG. 1B is a front view of the spherical component sorting member 1A. FIG. 2A is a front view for explaining a state in which the spherical component 30 is rolled on the rolling path 11 of the spherical component selection member 1A, and FIG. 2B is a line AA in FIG. FIG. 6 is a cross-sectional view of the spherical component selection member 1A, that is, a cross-sectional view in a plane perpendicular to the rolling direction of the spherical component 30.

  As shown in FIG. 1A and FIG. 1B, the spherical component selecting member 1A includes a rectangular columnar body 21 and a through-hole 11 having a circular cross section penetrating along the axial direction thereof. It is a tubular body having. In this tubular body, the through hole 11 corresponds to a rolling path according to the present invention, and the through hole 11 penetrates in the rolling direction of the spherical component 30 so as to share the axis with the main body 21.

  2A and 2B, the rolling path 11 is a plane perpendicular to the rolling direction of the spherical component 30 and including the center of the spherical component 30 (FIG. 2 ( A cross section taken along the line AA in a), see FIG. 2B.) In FIG. It has an inner surface 16. The plane may be referred to as a plane that includes the rotation axis of the spherical component 30 and is perpendicular to the rolling direction. As shown in FIGS. 2A and 2B, the contact inner surface 16 contacts the entire circumference of the spherical component 30 in the plane, in other words, the center point of the spherical component 30. Is in contact with the entire circumference of the outline circle of the cross-section passing through, that is, the great circle G. The contact inner surface 16 can also be mirror-finished so that the rolling of the spherical component 30 is smooth.

  The contact inner surface 16 has the curvature radius ρ over the entire axial direction of the rolling path 11 and contacts the entire circumference of the great circle G. Therefore, the rolling path 11 has an annular shape having the same cross-sectional shape perpendicular to the feed port 11a and the discharge port 11b opened at the end of the main body 21 and the axis.

  The axial length of the main body 21 is appropriately adjusted so that the axial length of the rolling path 11 (also referred to as a path length) is equal to or greater than the circumferential length of the great circle G in the spherical component 30. ing. When the axial length of the rolling path 11 is adjusted in this way, the spherical component 30 rotates at least once before passing through the rolling path 11, so that the sorting accuracy can be further improved. In general, the longer the axial length of the rolling path 11, the better the sorting accuracy. However, if the length is too long, the efficiency of removing the large-diameter spherical parts and the like that are hooked decreases, and a large arrangement space is required. There is. Therefore, the upper limit value of the axial length of the rolling path 11 is appropriately adjusted in consideration of these. In this example, the axial length of the rolling path 11 is the same as the axial length of the main body 21 and is adjusted to about 1.5 circumferences of the great circle G. The main body 21 only needs to have a dimension that allows the annular rolling path 11 to be perforated, and the wall thickness that is the distance between the contact inner surface 16 and the outer peripheral surface is not particularly limited.

  As shown in FIGS. 1 (c), 1 (d), 2 (c), and 2 (d), an example of the spherical component selecting member 1B in the spherical component selecting member according to the present invention is provided. Except that the outer diameter and the contact inner surface 17 are different, it is basically the same as the spherical component sorting member 1A. That is, the spherical component selection member 1B is configured such that the allowable maximum radius r of the spherical component 30 is a curvature radius ρ on a plane perpendicular to the rolling direction of the spherical component 30 (particularly, refer to FIG. 2D). A rolling path 12 having a contact inner surface 17 in contact with at least half of the circumference of the ball and through which the spherical component 30 rolls. Hereinafter, the difference will be mainly described.

  FIG. 1C is a left side view of the spherical component sorting member 1B, and FIG. 1D is a front view of the spherical component sorting member 1A. FIG. 2C is a front view for explaining a state in which the spherical component 30 is rolled on the rolling path 12 of the spherical component selection member 1B, and FIG. 2D is a BB line in FIG. FIG. 6 is a cross-sectional view of the spherical component selection member 1B, that is, a cross-sectional view in a plane perpendicular to the rolling direction of the spherical component 30.

  As shown in FIGS. 1C and 1D, the spherical component selecting member 1B includes a tubular main body 22 having a plane parallel to the axis and a part of the outer wall partially cut off in the axial direction. The tubular body has a through groove 12 penetrating along the axial direction of the main body 22. In this tubular body, the through groove 12 corresponds to a rolling path according to the present invention, and the through groove 12 penetrates in the rolling direction of the spherical component so as to share the axis with the main body 22.

  This rolling path 12 has an arcuate, semi-annular or horseshoe-shaped contact inner surface 17 with the radius of curvature ρ as the allowable maximum radius r of the spherical component 30, particularly in the plane shown in FIG. 2 (d). . The contact inner surface 17 is in contact with most of the circumference of the spherical component 30 in the plane. The contact inner surface 17 may be in contact with at least half of the circumference of the great circle G, and in this example, is in contact with about 80% of the circumference.

  As shown in FIG. 1 (e) and FIG. 1 (f), an example of the spherical component sorting member 1C in the spherical component sorting member according to the present invention has a configuration in which a long hole 26 is drilled in the main body 23. This is basically the same as the spherical part selecting member 1A. That is, the spherical component selection member 1C has a contact inner surface 18 that is in contact with at least half of the circumference of the spherical component, in a plane perpendicular to the rolling direction of the spherical component, where the allowable maximum radius r of the spherical component is a curvature radius ρ. And a rolling path 13 through which the spherical part rolls and passes, and a long hole 26 communicating with the rolling path 13 along the axis of the rolling path 13. Hereinafter, the difference will be mainly described.

  FIG. 1E is a left side view of the spherical component sorting member 1C, and FIG. 1F is a top view of the spherical component sorting member 1C.

  As shown in FIGS. 1 (e) and 1 (f), the spherical component selecting member 1C includes a rectangular columnar body 23, a through-hole 13 having a circular cross section penetrating along the axial direction thereof, and a main body. 23 is a tubular body having a long hole 26 that is perforated in a slit shape along the axis 23 and communicates with the through hole 13 from the peripheral surface of the main body 23. In this tubular body, the through hole 13 corresponds to the rolling path according to the present invention, and the through hole 13 penetrates in the rolling direction of the spherical component so as to share the axis with the main body 23.

  The contact inner surface 18 has contact inner surfaces 18 a at both ends of the rolling path 13 in contact with the entire circumference of the spherical part, and the contact inner surface 18 b at the center of the rolling path 13, that is, the portion where the long hole 26 is formed. In contact with the majority of the circumference of the spherical part. The long hole 26 has, for example, a function of forcibly changing the rotation axis of the spherical component that rolls in the rolling path 13, and a rod-like shape, for example, when taking out the large-diameter spherical part that is hooked on the rolling path 13. The leading end of the take-out member is inserted and has a function of guiding the movement of the take-out member. In this example, the ratio of the contact inner surface 18b contacting the circumference is appropriately set according to the axial length of the contact inner face 18a in consideration of the selection accuracy, but at least half of the circumference. The contact is preferable in that a high sorting accuracy can be realized.

  An example of the spherical component sorting member 1D in the spherical component sorting member according to the present invention is such that, as shown in FIGS. 1 (g) and 1 (h), the rolling path 14 is formed to be inclined. Basically the same as the spherical component selection member 1A. That is, the spherical component selection member 1D has a contact inner surface 19 that contacts the entire circumference of the spherical component, with the allowable radius r of the spherical component being a radius of curvature ρ on a plane perpendicular to the rolling direction of the spherical component. And a rolling path 14 through which the spherical part rolls. Hereinafter, the difference will be mainly described.

  FIG. 1G is a left side view of the spherical component sorting member 1D, and FIG. 1H is a front view of the spherical component sorting member 1D.

  As shown in FIGS. 1 (g) and 1 (h), the spherical component selecting member 1D has a rectangular columnar body 24 and a through hole 14 having a circular cross section that penetrates along the axial direction thereof. It is a tubular body. In this tubular body, the through hole 14 corresponds to a rolling path according to the present invention, and the through hole 14 penetrates in the rolling direction of the spherical component so as to be inclined with respect to the axis of the main body 24. The inclination angle θ of the rolling path 14 with respect to the axis of the main body 24 may be an inclination angle such that the part group, in particular, the spherical part does not roll at an unnecessarily high rolling speed. Is set in a range of 1 to 45 °. In this example, the inclination angle θ is set to about 15 °.

  The spherical component sorting member according to the present invention can sufficiently achieve the object of the present invention as long as it has one rolling path like the spherical component sorting members 1A to 1D. In order to achieve high sorting efficiency, it is preferable to have a plurality of rolling paths.

  As shown in FIG. 3A, the spherical part sorting member 2A as an example of the spherical part sorting member according to the present invention has the above spherical shape except that two rolling paths 11 are arranged in parallel in one direction. This is basically the same as the component selection member 1A. That is, the spherical component selection member 2A includes two rolling paths 11 through which the spherical parts roll and pass, and each of the two rolling paths 11 is in a plane perpendicular to the rolling direction of the spherical parts. The allowable maximum radius r of the spherical component is a curvature radius ρ, and the contact inner surface 16 is in contact with the entire circumference of the spherical component. Hereinafter, the difference will be mainly described. FIG. 3A is a left side view of the spherical component selection member 2A. The two rolling paths 11 are arranged side by side so that their axes are substantially parallel to each other in the same plane. FIG. 3A shows a state in which the two rolling paths 11 are arranged in parallel in the horizontal direction, that is, in the left-right direction on the paper surface.

  As shown in FIG. 3B, the spherical component sorting member 2B in the spherical component sorting member according to the present invention has the spherical shape except that three rolling paths 11 are arranged in one direction. This is basically the same as the component selection member 1A. That is, the spherical component selection member 2B includes three rolling paths 11 through which the spherical parts roll and pass, and each of the three rolling paths 11 is in a plane perpendicular to the rolling direction of the spherical parts. The allowable maximum radius r of the spherical component is a curvature radius ρ, and the contact inner surface 16 is in contact with the entire circumference of the spherical component. Hereinafter, the difference will be mainly described. FIG. 3B is a left side view of the spherical component selection member 2B. The three rolling paths 11 are arranged side by side so that their axes are substantially parallel to each other in the same plane. FIG. 3B shows a state in which the three rolling paths 11 are arranged in parallel in the vertical direction, that is, the vertical direction of the paper surface.

  As shown in FIG. 3C, the spherical component sorting member 2C as an example of the spherical component sorting member according to the present invention has four rolling paths 11 arranged in parallel in two directions perpendicular to each other. Except for this, it is basically the same as the spherical component selection member 1A. It can also be said that the spherical component sorting member 2C has two rolling paths 11 arranged in two rows. That is, the spherical component selection member 2C includes four rolling paths 11 through which the spherical parts roll and pass, and each of the four rolling paths 11 is in a plane perpendicular to the rolling direction of the spherical parts. The allowable maximum radius r of the spherical component is a curvature radius ρ, and the contact inner surface 16 is in contact with the entire circumference of the spherical component. Hereinafter, the difference will be mainly described. FIG. 3C is a left side view of the spherical component selection member 2C. The four rolling paths 11 are arranged substantially parallel to each other such that their axis lines become the ridgelines of the quadrangular prism body. FIG. 3C shows a state in which four rolling paths 11 are arranged in parallel in the horizontal direction and in the vertical direction.

  As shown in FIG. 3D, the spherical component sorting member 2D in the spherical component sorting member according to the present invention has four rolling paths so that the central axes of the rolling paths 11 are concentric. Except that 11 is juxtaposed or arranged, it is basically the same as the spherical component sorting member 1A. That is, the spherical component sorting member 2D includes four rolling paths 11 through which the spherical parts roll and pass, and each of the four rolling paths 11 is in a plane perpendicular to the rolling direction of the spherical parts. The allowable maximum radius r of the spherical component is a curvature radius ρ, and the contact inner surface 16 is in contact with the entire circumference of the spherical component. FIG. 3D is a left side view of the spherical component selection member 2D.

  As shown in FIG. 5, the spherical component sorting member 2E in the spherical component sorting member according to the present invention has an inclined rolling path as shown in FIG. 5, similarly to the spherical component sorting member 1D shown in FIG. Except for being formed, it is basically the same as the spherical component selection member 2B or 2D. That is, the spherical component selection member 2E includes three inclined rolling paths 11A, 11B, and 11C through which the spherical component rolls or passes, or four inclined rollers through which the spherical component rolls and passes. Each of these three or four rolling paths is in a plane perpendicular to the rolling direction of the spherical part, the allowable radius r of the spherical part is the radius of curvature ρ, and the circumference of this spherical part is It has a contact inner surface that contacts the whole. The rolling paths 11 are similarly inclined, and the inclination angle θ is set in the same manner as the spherical component sorting member 2D.

  The spherical component selection member according to the present invention may be formed of any material as long as the component group can be sequentially rolled, and examples of the material include various metals and various resins.

  Next, an example of the spherical component sorting device in the spherical component sorting member according to the present invention will be described. As shown in FIG. 4, the spherical component sorting device 3 in the spherical component sorting device according to the present invention includes a component supply member 5, a spherical component sorting member 1 </ b> A, a take-out member 6, and a first housing member 7. The second housing member 8 is provided. The spherical component sorting member 1A is basically the same as the spherical component sorting member 1A.

  As shown in FIG. 4, the component supply member 5 accommodates a component group to be selected. The component supply member 5 includes a housing 5 a that houses the component group, and a supply path 5 b that extends obliquely downward from the vicinity of the bottom of the housing 5 a and supplies the component group to the rolling path 11. Become. That is, as shown in FIG. 4, the supply path 5 b extends downward from the vicinity of the bottom of the housing 5 a toward the rolling path 11 of the spherical part sorting member 1 </ b> A in the spherical part sorting apparatus 3. The component supply member 5 can supply the spherical component and the large-diameter spherical component constituting the component group to the rolling path 11 continuously in a row or intermittently.

  As shown in FIG. 4, the spherical component selection member 1 </ b> A is disposed in an inclined state so that the rolling path 11 descends on the extension line of the supply path 5 b toward the front thereof. The front can also be said to be downstream of the spherical part in the rolling direction. That is, as shown in FIG. 4, the spherical component selection member 1 </ b> A is disposed with the rolling path 11 inclined at a downward gradient so that the spherical component rolls along the rolling path 11 in the rolling path 11. ing. The descending gradient of the rolling path 11 at this time is an angle at which the spherical part does not roll at a rolling speed higher than necessary. For example, the large-diameter spherical part has its own weight in the latched state shown in FIG. The angle may be such that it does not fall, and is adjusted so that the axis of the rolling path 11 has an inclination angle θ of more than 0 ° and less than 90 ° with respect to the horizontal plane. The inclination angle is preferably in the range of 1 to 45 °. In this example, the inclination angle θ is set to about 15 °. 4 shows a state in which the tip of the supply path 5b and the inlet 11a of the rolling path 11 are arranged slightly apart from each other, the tip and the inlet 11a are connected to each other. It is preferable to dispose the spherical component sorting member 1A.

  The take-out member 6 is a member that takes out a large-diameter spherical component or the like that is hooked in the rolling path 11 of the spherical component selection member 1A. As will be described later, when the large-diameter spherical member 31 constituting the parts group is fed into the rolling path 11 and rolls, for example, as shown in FIG. It is caught by the diameter part 31 a, and the rolling trajectory at the center of the large-diameter spherical part 31 deviates from the axis of the rolling path 11 in some cases and is latched in the rolling path 11. The take-out member 6 is a member that takes out and removes the large-diameter spherical component 31 that has become immobile in the rolling path 11 in this way. In this example, as shown in FIG. 4, the take-out member 6 is a rod-like body having a dimension that can be inserted into the rolling path 11 and having a length that penetrates the rolling path 11.

  The 1st accommodating member 7 is a member which accommodates the spherical component which has passed the rolling path 11, and arrange | positions so that it may adjoin to the discharge port 11b of the rolling path 11 in the downstream of the said spherical component selection member 1A. Is done. The second accommodating member 8 is a member that accommodates a large-diameter spherical component that cannot enter the rolling path 11 or a large-diameter spherical component that is latched by the rolling path 11 even if it enters, and the spherical component selecting member 1A. In the vicinity of the inlet 11 a of the rolling path 11. As the 1st accommodating member 7 and the 2nd accommodating member 8, a well-known various box etc. are employable, respectively.

  Although not shown in FIG. 4, the spherical component sorting device 3 moves the inlet 11a of the spherical component sorting member 1A from the tip of the supply channel 5b when a large-diameter spherical component or the like is hooked on the rolling path 11. There may be provided moving means. The moving means is a member that displaces the arrangement state of the spherical component sorting member 1A so that the spherical component sorting member 1A is substantially horizontal, or the inlet 11a side is inclined to a lower position than the discharge port 11b side. If it is, it will not specifically limit, For example, a robot arm, an air cylinder, a hydraulic cylinder etc. are mentioned, You may displace the spherical component selection member 1A manually instead of a moving means.

  Although the spherical component sorting device 3 is not shown in FIG. 4, a large-diameter spherical component that is inserted into the rolling path 11 from the spherical part discharge port 11 b side of the rolling path 11 and hooked. There may be provided an extruding member for extruding to the inlet 11a side. Examples of such a pushing member include a robot arm that can be moved back and forth in one direction, an air cylinder, a hydraulic cylinder, an air blow, and the like, and the takeout member 6 may be manually displaced instead of the pushing member.

  As shown in FIG. 5, the spherical component sorting device 4 in another example of the spherical component sorting device according to the present invention includes a component supply member 5, a spherical component sorting member 2 </ b> E, an extraction member 6, and a first housing member. 7, a second housing member 8, and a switching member 9. The inclination angle θ in each of the rolling paths 11A, 11B, and 11C of the spherical component selection member 2E substantially matches the inclination angle of the supply path 5b.

  The component supply member 5, the take-out member 6, the first storage member 7, and the second storage member 8 in the spherical component selection device 4 are respectively the component supply member 5, the extraction member 6, and the first storage member in the spherical component selection device 3. 7 and the second housing member 8 are basically the same.

  The spherical component sorting member 2E is basically the same as the spherical component sorting member 1A. As shown in FIG. 5, the spherical component sorting member 2E is disposed substantially horizontally so that one rolling path 11A descends on the extension line of the supply path 5b of the component supply member 5 toward the front thereof. Has been. Therefore, as shown in FIG. 5, the supply path 5b extends downward from the vicinity of the bottom of the housing 5a toward the one rolling path 11A of the spherical part sorting member 2E in the spherical part sorting apparatus 4. ing. FIG. 5 shows a state in which the tip of the supply path 5b and the inlet 11a of the one rolling path 11A are arranged slightly apart from each other. However, the tip and the inlet 11a It is preferable to arrange the spherical component sorting member 2E so as to be connected.

  The switching member 9 is a member that arranges the rolling paths 11B and 11C other than the one rolling path 11A so as to descend forwardly on the extension line of the supply path 5b. In this example, the switching member 9 moves the spherical component sorting member 2E so that each rolling path 11A to 11C of the spherical component sorting member 2E descends on the extension line of the supply path 5b toward the front thereof. It can also be referred to as a member that is sequentially switched. That is, the switching member 9 includes the one rolling path 11A arranged on the extension line of the supply path 5b, and another rolling path provided by the spherical component sorting member 2E on the extension line of the supply path 5b, for example, rolling. It is a member arranged by switching to the path 11B or 11C. The switching member 9 only needs to be able to switch the plurality of rolling paths 11A to 11C and arrange the spherical component sorting member 2E in this way. In this example, the spherical component sorting member 2E is shown in FIG. The support movable member 10 is supported to be movable up and down in the direction of the arrow AB or to be rotatable in the direction of the arrow CD shown in FIG. 5, and a drive unit (not shown) provided on the support movable member 10. ing. An internal gear (not shown) that engages with a gear or a pinion (not shown) formed on the peripheral surface of the spherical component selecting member 2E is formed on the support portion (not shown) of the support movable member 10. And form an internal meshing structure.

  Although the spherical component sorting device 4 is not shown in FIG. 5, similarly to the spherical component sorting device 3, the takeout member 6 is inserted into the rolling path 11 from the spherical part discharge port 11 b side in the rolling path 11. There may be provided an extruding member that extrudes the large-diameter spherical part that is hooked to the inlet 11a side.

  A method of selecting a spherical component from a component group in which a spherical component having a radius of the allowable maximum radius r and a large-diameter spherical component having a radius larger than the allowable maximum radius r are mixed using the spherical component sorting device 3 will be described.

  In the spherical part selection method, a spherical part and a large-diameter spherical part included in a part group are arranged in a plane perpendicular to the rolling direction, and the allowable maximum radius r of the spherical part is a curvature radius ρ, and the circumference of the spherical part is determined. This is a method of rolling and sequentially rolling the inside of a rolling path having a contact inner surface that is in contact with at least half of the spherical part, and collecting and selecting a spherical part that has passed through the rolling path.

  The spherical component sorting device 3 is configured as shown in FIG. 4, and the component group is housed in the component supply member 5. A spherical part or a large-diameter spherical part constituting a part group is supplied to the rolling path 11 from the supply path 5 b of the part supply member 5.

  Since the spherical component supplied to the rolling path 11 has the radius, it enters the rolling path 11. Then, for example, as shown in FIG. 2A, the spherical component that has entered enters the contact surface 16 of the rolling path 11 while maintaining the circumference of the great circle G in the plane, in other words. Then, in a state where the rolling trajectory at the center of the spherical component 30 coincides with the axis of the rolling path 11, the rolling path 11 smoothly rolls in the downstream direction toward the discharge port 11b. The spherical component 30 that has rolled in the rolling path 11 passes through the rolling path 11, is discharged from the discharge port 11 b, and is stored in the first storage member 7.

  A large circle in a plane perpendicular to the rolling direction and including the center of the large-diameter spherical component is larger than the allowable maximum radius r in the vicinity of the inlet 11a of the large-diameter spherical component. If the portion has a larger radius, the large-diameter spherical part cannot contact the inlet 11a having a radius smaller than the radius and cannot enter the rolling path 11, and is near the tip of the supply path 5b. Stay on. The large-diameter spherical component is accommodated in the second collecting member 8.

  The large-diameter spherical component supplied to the rolling path 11 is in the vicinity of the inlet 11a of the rolling path 11 and a large circle in a plane perpendicular to the rolling direction and including the center of the large-diameter spherical part is the allowable maximum radius. When the portion has a radius of r or less, the large-diameter spherical part enters the rolling path 11 and rolls. As the large-diameter spherical component rolls in the rolling path 11, as shown in FIG. 6, for example, a portion whose surface is raised and has a radius larger than the allowable maximum radius r, specifically, When the large-diameter portion 31 a comes into contact with the contact inner surface 16, rolling is blocked at this portion, and the large-diameter spherical component 31 is latched in the middle of the rolling path 11. Thus, even if the large-diameter spherical component 31 enters the rolling path 11, the large-diameter spherical part 31 does not substantially pass through the rolling path 11 and is discharged from the discharge port 11 b. The large-diameter spherical component 31 inserted and latched from the discharge port 11 b side of the rolling path 11 is taken out from the feed port 11 a and stored in the second collecting member 8.

  In this way, spherical parts and large-diameter spherical parts can be sorted with high sorting accuracy.

  In this method, since the contact inner surface 16 of the rolling path 11 contacts the entire circumference of the spherical part, the spherical part rolls in a state where its center rolling locus coincides with the axis of the rolling path 11. On the other hand, it is possible to effectively prevent the large-diameter spherical component from passing through the rolling path 11 without being able to roll in a state where its center rolling locus deviates from the axis of the rolling path 11. it can. Therefore, according to this method, it is possible to sort spherical parts and large-diameter spherical parts with higher sorting accuracy.

  In this example, the method of using the spherical component sorting member 1A has been described. However, even if the spherical component sorting members 1B to 1D and 2A to 2E are used in place of the spherical component sorting member 1A, basically a high sorting is performed. A spherical part and a large-diameter spherical part can be selected with accuracy.

  Therefore, according to the present invention, it is possible to achieve the object of providing a spherical component sorting method that can easily sort spherical components with high sorting accuracy.

  A method for selecting a spherical component from a group of components in which a spherical component having a radius of the allowable maximum radius r and a large-diameter spherical component having a radius larger than the allowable maximum radius r are mixed using the spherical component sorting device 4 will be described.

  In the sorting method using the spherical component sorting device 4, when the large-diameter spherical component is caught in the middle of the rolling path 11, the sorting operation is performed without interrupting the sorting operation like the spherical component sorting device 3. This is different from the sorting method using the spherical component sorting device 3 in that it can be performed. That is, the sorting method using the spherical component sorting device 4 can achieve higher sorting efficiency than the sorting method using the spherical component sorting device 3.

  In this sorting method, as in the sorting method using the spherical component sorting device 3, the parts group is supplied to the rolling path 11A. Then, as shown in FIG. 6, when the large-diameter spherical part 31 is hooked on one rolling path 11 </ b> A of the spherical part sorting device 4, or after a certain period of time, the switching member 9 operates to supply The spherical component sorting device 4 is moved up and down in the direction of the arrow AB shown in FIG. 5 so that another rolling path 11 such as the rolling path 11B or 11C is arranged at the tip of the path 5b, or FIG. The rolling paths 11 </ b> A to 11 </ b> C located on the extension line of the supply path 16 are switched.

  The parts group is supplied to the rolling path 11B or 11C newly switched and arranged at the tip of the supply path 5b, and the sorting operation is continued, while being hooked on the rolling path 11A separated from the tip of the supply path 5b. The large-diameter spherical component 31 is taken out by the take-out member 6 as described above, and is housed in the second housing member 8. As described above, in the sorting method using the spherical component sorting device 4, the sorting operation of the component group and the operation of taking out the large-diameter spherical component that is hooked can be performed simultaneously.

  Therefore, according to this method, it is possible to sort spherical parts and large-diameter spherical parts with higher sorting efficiency in addition to higher sorting accuracy.

  In this example, the method using the spherical component sorting member 2E and the large-diameter spherical component has been described. However, even if the spherical component sorting members 2A to 2D are used instead of the spherical component sorting member 2E, basically, In addition to high sorting accuracy, it is possible to sort spherical parts and large-diameter spherical parts with high sorting efficiency.

  Therefore, according to the present invention, it is possible to achieve the object of providing a method for sorting spherical parts that can easily sort spherical parts with high sorting accuracy and sorting efficiency.

  The spherical component sorting member and the spherical component sorting device according to the present invention are not limited to the above-described embodiments, and various modifications can be made within a range in which the object of the present invention can be achieved.

  The spherical component sorting members 1A to 1D and 2A to 2E are provided with rolling paths 11 to 14 having contact inner surfaces that contact the whole or most of the great circle G. May have a rolling path having a contact inner surface that contacts at least half of the great circle.

  The spherical component sorting members 1A to 1D and 2A to 2E are provided with rolling paths 11 to 14 penetrating from the inlet port 11a to the outlet port 11b that are opened on the respective end faces of the main body. The member may include a space portion that is formed in the vicinity of one end surface and the other end surface of the main body and is larger than the allowable maximum radius of the spherical component, and a rolling path that communicates these space portions. The space portion has a function of adjusting the rolling speed of a spherical component inserted into the rolling path, for example.

  The spherical component sorting members 1A to 1D and 2A to 2E have 1, 2, 3, or 4 rolling paths 11 to 14, respectively. In the present invention, the spherical component sorting members are five or more. These rolling paths may be provided, and the number thereof is not particularly limited.

  The spherical component sorting members 1A, 1B, 1D, and 2A to 2E include rolling paths 11 to 14, and the spherical component sorting member 1C includes a rolling path 13 and a long hole 26. The spherical part selecting member may include an axis changing means for changing the rolling axis of the spherical part that rolls in the rolling path. As this axis changing means, for example, a spiral ridge or groove formed in the rolling path, a slit-like elongated hole extending spirally, a flocked portion provided in the rolling path, an air feed An input means etc. are mentioned.

  In the spherical component selection members 2A to 2E, a plurality of rolling paths 11 are arranged in parallel in the horizontal direction, the vertical direction, and concentric circles. In this invention, the spherical component selection members are a plurality of rolling paths. May be arranged side by side without any regularity.

  In the spherical component sorting apparatuses 3 and 4, a rod-shaped body take-out member 6 is provided. In this invention, the take-out member provided in the spherical component sorting device is inserted into a rolling path like the rod-like body. For example, an air blow device that blows air into the rolling path, an inverted member that inverts the spherical component sorting member, and an inverted vibration device that vibrates the inverted member and the inverted spherical component sorting member Etc.

  Each of the spherical component sorting devices 3 and 4 includes one spherical component sorting member 1A or 2E. However, in the present invention, the spherical component sorting device is not limited to one, but is arranged in parallel or You may provide the several spherical component selection member arranged in series. In particular, according to the spherical component sorting apparatus in which a plurality of spherical component sorting members are arranged in parallel, sorting efficiency can be significantly improved. Also, according to the spherical component sorting device in which a plurality of spherical component sorting members formed with rolling paths having contact inner surfaces with different curvature radii ρ are arranged in series, each spherical component sorting member has a spherical shape having a plurality of radii. Parts can be selected.

  The spherical component sorting device 3 includes a spherical component sorting member 1A having one rolling path 11. In this invention, the spherical component sorting device has a plurality of rolling paths. The sorting members 2A to 2E may be provided. In this case, all of the plurality of rolling paths may be arranged on the extension line of the supply path, and a part of the rolling paths are arranged on the extension line of the supply path as in the spherical component sorting device 4. Also good.

  The spherical component sorting device 3 includes the spherical component sorting member 1A. In this invention, the spherical component sorting device includes, for example, the spherical component sorting members 1B to 1D and 2A to 2E shown in FIG. It may be.

  In the spherical component sorting device 4, one rolling path 11A is arranged on the extended line of the supply path 5b. In the present invention, the spherical component sorting device included in the spherical component sorting device is provided on the extended line of the supply path 5b. If not all members, a plurality of rolling paths may be arranged.

  In the spherical component sorting device 4, the switching member 9 is configured to switch the rolling path 11 by displacing the arrangement of the spherical component sorting member 2E. In the present invention, the switching member is a component supply member. Or the member which moves the supply path and arranges rolling paths other than a part of rolling paths so that it may descend toward the front on the extension line of a supply path, for example, an elevator may be sufficient.

  In the spherical component sorting device 4, the switching member 9 includes a movable support member 10 and a drive unit. However, in the present invention, the switching member is not limited to the above-described configuration, and for example, the drive unit and the drive unit. The switching member provided with the pulley provided in each of the part and the spherical component selection member and the endless belt mounted on the pulley may be used.

  The spherical component sorting device 4 includes the spherical component sorting member 2E. In the present invention, the spherical component sorting device may include, for example, the spherical component sorting members 2A to 2D shown in FIG. .

1A, 1B, 1C, 1D, 2A, 2B, 2C, 2D, 2E Spherical component sorting member 3, 4 Spherical component sorting device 5 Component supply member 6 Extraction member 7 First housing member 8 Second housing member 9 Switching member 11, 11A, 11B, 11C, 12, 14 Rolling path (through hole)
13 Rolling path (through hole)
16, 17, 18, 18a, 18b, 19 Contact inner surface 30 Spherical part 31 Large diameter spherical part 31a Large diameter part

Claims (6)

A spherical component selecting member for selecting the spherical component from a component group in which a spherical component having a radius equal to or smaller than the allowable maximum radius r and a large-diameter spherical component having a radius larger than the allowable maximum radius r are mixed;
The spherical component selection member comprises a rolling path through which the spherical component rolls, and
The rolling path has a contact inner surface that is in contact with at least half of the circumference of the spherical part, in a plane perpendicular to the axis of the rolling path, the allowable maximum radius r of the spherical part is a curvature radius ρ , And the spherical component selection member characterized by having the axis change means which changes the rolling axis of the said spherical component which rolls in the said rolling path . The spherical part selection member according to claim 1, wherein the rolling path is a through hole or a through groove penetrating in a rolling direction of the spherical part.   The spherical part selection member according to claim 1, wherein the rolling path has a path length equal to or greater than a circumference of the spherical part.   The spherical part selection member according to claim 1, comprising a plurality of the rolling paths. The spherical component sorting member according to any one of claims 1 to 4, arranged so that the rolling path descends forward on an extension line of a supply path that supplies the component group.
An apparatus for sorting spherical parts, comprising: a taking-out member for taking out the large-diameter spherical part that is hooked in the rolling path of the spherical part sorting member. The spherical component sorting member according to claim 4, arranged so that a part of the rolling path descends forward on an extension line of a supply path that supplies the component group.
A switching member that arranges a rolling path other than the part of the rolling path so as to descend toward the front of the extension line of the supply path that supplies the component group;
An apparatus for sorting spherical parts, comprising: a taking-out member for taking out the large-diameter spherical part that is hooked in the rolling path of the spherical part sorting member.

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