JP6544465B2 - Patent application title: Workpiece pick-up device, and method of manufacturing linear guide device using work pick-up device - Google Patents

Description

  The present invention relates to a work taking-out apparatus for taking out one work from a work stocker containing a plurality of works in a fixed orientation, and a method of manufacturing a linear guide apparatus using the work taking-out apparatus.

  A vibratory parts feeder is well known as a device for aligning a plurality of supplied parts and taking out one by one. However, the vibratory parts feeder has a problem that the structure to be vibrated becomes complicated, which increases the cost and increases the size of the apparatus. In this respect, it is said that the rocking-type work taking-out apparatus has a simple structure and can realize cost reduction and miniaturization.

  Conventionally, a swingable parts feeder described in Patent Document 1 is known as an example of a swingable workpiece takeout device. The swingable parts feeder described in Patent Document 1 is a parts feeder which takes out a bolt-like part having a large diameter cylindrical head and a small diameter cylindrical shaft having a smaller diameter than that as a work to be taken out. The work stocker into which the work is put is rocked, and the work is dropped from a slit in the bottom of the work stocker formed along the direction orthogonal to the rocking axis. By slidingly holding the head of the dropped work with a feed rail, a bolt-like work having a head and a shaft is aligned in a fixed posture.

Unexamined-Japanese-Patent No. 2006-44865

  The swing type parts feeder described in the above-mentioned Patent Document 1 can hold the work by the feed rail with the head turned up because the work to be taken out is a bolt-like part. If the shape is different, it is necessary to change the swingable parts feeder to another structure.

  The workpiece to be taken out here is the same as a bolt-like part in that it has a shaft extending in one axial direction, but the axial end of the shaft is in a specific direction intersecting the uniaxial direction. It is a work which has a protruding part which protruded. As an example of the workpiece | work of such a shape, the holding plate (retainer of a rolling element) of a linear guide apparatus is mentioned. Therefore, first, the holding plate of the linear guide device will be described.

FIG. 13 is an overall perspective view of the linear guide device, and FIG. 14 is a perspective view of a slider of the linear guide device.
The linear guide device 200 includes an axially extending guide rail 202 shown in FIG. 13 and a slider 203 provided on the guide rail 202 so as to be relatively movable in the axial direction. The slider 203 includes a slider body 204, end caps 205 and 205 attached to both ends in the axial direction of the slider body 204, and a plurality of rolling elements (balls) 206 that circulate and roll in the circulation rolling path 211 shown in FIG. And a plurality of spacers 207 interposed between the adjacent rolling elements 206, and a first holding plate 208 and a second holding plate 209 which are guide parts for guiding the rolling elements 206.

  The first holding plate 208 is disposed at the bottom of the slider body 204 to guide the plurality of rolling elements 206. In the second holding plate 209, the protruding portions 209b at both ends in the longitudinal direction are fixed to the end cap 205, and the axially extending shaft portion 209a is fixed to a retainer groove (not shown) formed in the guide rail 202. Thus, the plurality of rolling elements 206 are guided.

  Here, the work to be taken out is the second holding plate 209. FIG. 15 is an external view showing the shape of the second holding plate. The second holding plate 209 (work W) has a shaft portion 209a (Wa) extending along the uniaxial direction E, and at both axial end portions of the shaft portion 209a (Wa), a specific one that intersects the uniaxial direction E It has a protrusion 209 b (Wb) protruding in one direction.

  Since the shape of the work having such a shape is clearly different from that of the bolt-like part, the device described in Patent Document 1 can not cope with the work. In the related art, it is also possible to take out one by one the work having a projecting part projecting in a specific one direction crossing the axial direction at the end of the shaft part, such as the second holding plate 209, while aligning the directions. There was no work picking device with a simple structure that could be done.

  The present invention has been made in view of the above-mentioned matters, and an object thereof is a specific one-sided projecting portion which intersects with the axial direction at the end of the shaft portion, such as a holding plate of a linear guide device. An object of the present invention is to provide a workpiece picking device capable of picking out workpieces having the same orientation one by one and a method of manufacturing a linear guide device using the workpiece picking device.

The present invention has the following constitution.
(1) From a work stocker in which a plurality of workpieces each having a shaft extending in one axial direction and having a protrusion projecting in a specific one direction crossing the uniaxial direction at an axial end of the shaft is accommodated; A work picking device for picking up the work,
The work stocker is formed with an extraction groove on the inner bottom surface of the work stocker, into which only the shaft portion of the work can enter.
A rocking mechanism for rocking the work stocker about an axis parallel to the takeout groove so that the work enters the takeoff groove;
A work removing mechanism for removing another work from the periphery of the take-out groove, leaving only one work which has entered the take-out groove in an appropriate posture by the swing;
Equipped with
At an end of the inner bottom surface of the work stocker in the extending direction of the take-out groove, a recess is formed to receive the protrusion of the work that has entered the take-out groove,
The work removing mechanism moves over the take-out groove along the inner bottom surface of the work stocker, thereby scraping a work which has entered the take-out groove in an inappropriate posture or a work staying around the take-out groove. Equipped with a scraping member to be removed,
Work picking device.
(2) The work take-out apparatus according to (1), wherein the work stocker includes a work detection sensor that detects the presence or absence of a work that has entered the take-out groove.
(3) The work taking-out apparatus according to (1) or (2), wherein the work is a holding plate which is used in a linear guide device and holds a rolling element between a guide rail and a slider.
(4) The cross-sectional shape perpendicular to the axial direction of the shaft portion of the holding plate is a rectangular shape having a short side and a long side,
The groove width in the direction perpendicular to the extending direction of the take-out groove is set to 1 or more and 2 or less times the short side length of the rectangular cross section of the holding plate,
The workpiece pickup device according to (3), wherein a groove depth of the pickup groove is set to 0.8 times or more and 1.4 times or less of a long side length of the rectangular cross section of the holding plate.
(5) The work taking-out apparatus according to any one of (1) to (4), wherein a rounded portion is provided at an opening edge of the taking-out groove.
(6) A manufacturing method of a linear guide device using the work taking-out device according to any one of (1) to (5).

  According to the present invention, it is possible to take out one by one a workpiece having a shape having a protrusion projecting in a specific one direction intersecting the axial direction at the end of the shaft in a state in which the workpiece is aligned in a fixed direction. Further, since the system is configured to swing the work stocker, the work can be taken out with a simple structure, and cost reduction and miniaturization can be achieved.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the whole structure of the workpiece taking-out apparatus for describing embodiment of this invention. It is a perspective view showing composition of a work stocker of work picking device. It is AA arrow sectional drawing of FIG. It is a BB arrow sectional drawing of FIG. It is sectional drawing which shows the state which the axial part of the workpiece | work has penetrated in the suitable attitude | position in the taking-out groove | channel of the bottom face in a workpiece storage. FIG. 7 is a cross-sectional view for describing the shape of the take-out groove and the dimensional relationship between the take-out groove and the shaft of the work. It is a figure explaining an operation at the time of making a work stocker rock, (A) is an explanatory view showing a state when making a work stocker rock in the arrow X1 direction, (B) shows a work stocker in the arrow X2 direction. It is explanatory drawing which shows the state when making it rock | fluctuate. It is a figure explaining the effect | action of the scraping removal mechanism of a workpiece taking-out apparatus, (A) is explanatory drawing which shows a state when advancing a scraping member, (B) was made to retract the scraping member to the original position. It is an explanatory view showing the state of time. It is a perspective view which shows the principal part structure of the workpiece picking apparatus of the 2nd structural example of this invention. It is a perspective view which shows the whole structure of the workpiece picking apparatus of the 3rd structural example of this invention. FIG. 11 is a view for explaining the operation of the work pressing and removing mechanism of the work taking out apparatus of FIG. 10, wherein (A) is an explanatory view showing a state before operating the pushing member; FIG. FIG. 12 is a view for explaining the state when the push-down member of FIG. 11 is pushed down, and (A) is an explanatory view showing that the push-down member does not hit the work when the work is inserted into the take-out groove in an appropriate posture; 2.) is an explanatory view showing that the lowered pressing-down member abuts against the work of the improper posture or the unnecessary work, and the work jumps up and is removed. FIG. 1 is an external perspective view of a linear guide device including a work to be taken out by a work taking-out apparatus according to the present invention. It is an external appearance perspective view of the slider of a linear guide apparatus. It is a block diagram of a holding plate which is a holding plate contained in a slider, and is an example of the work of the extraction object by work extraction device of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing an overall configuration of a workpiece picking device for explaining an embodiment of the present invention.
The workpiece picking device 100 is a device for picking out one workpiece W from the work stocker 10 in which a plurality of workpieces W are accommodated, and is mainly attached to an automatic assembling device or the like.

  The workpiece W to be taken out here has the shaft portion Wa extending in the uniaxial direction E as described above with reference to FIG. 15, and the axial direction E intersects with the axial direction E at both axial direction end portions of the shaft portion Wa. Component for a linear guide device, each having a projecting portion Wb projecting in a specific one direction. This part is a holding plate (second holding plate 209 in the linear guide device 200 shown in FIGS. 13 and 14) for holding the rolling elements (balls) between the guide rails of the linear guide device and the slider. , It is comprised as a plate-like body of fixed thickness. The axial section Wa of the work W has a rectangular cross-sectional shape perpendicular to the uniaxial direction E, having a short side and a long side. The long side of the rectangular cross section is formed by the plate surface of the plate-like body, and the protrusion Wb is formed to protrude in one direction parallel to the long side.

  As shown in FIG. 1, the workpiece picking device 100 of this configuration example includes a box-shaped workpiece stocker 10 that accommodates a plurality of workpieces W and has an open upper surface. The work stocker 10 is fixed to the upper surface of the plate-like rocking frame 4. The rocking frame 4 is rocked in the vertical direction (arrow X direction) around a horizontal rocking axis Y by a rocking shaft 5 disposed between the upper portions of a pair of support frames 3 and 3 erected on the base plate 2. It is freely supported.

  A base 30 a of an air cylinder 32, which is an element of a swing mechanism 30 for swinging the work stocker 10, is rotatably fixed to the base plate 2 via a bracket 34. The tip of the air cylinder 32 on the opposite side to the base 30 a is rotatably connected at a position on the rocking frame 4 away from the rocking shaft 5. As a result, the air cylinder 32 is extended and retracted, and the swing frame 4 and the work stocker 10 fixed thereon can be swingingly driven around the swing axis Y in the vertical direction.

  As shown in FIG. 2, the work stocker 10 is a box having a frame wall 11 having a substantially rectangular shape in a top view, and a bottom wall 13 closing the lower surface of the frame wall 11. The rectangular frame wall 11 is orthogonal to the swinging direction with the end walls 11a and 11b of the one end side TA and the other end side TB (hereinafter referred to as "TA side" and "TB side") in the swinging direction. And a pair of side walls 11c on both sides of the direction. A notch in which a scraping member 52 of a workpiece removing mechanism 50 described later is accommodated in a part of the end wall 11b on the TB side as shown in FIG. 3 which is a sectional view taken on line AA of FIG. A hollow 11d in the form of a circle is provided.

  The bottom wall 13 of the work stocker 10 is formed such that the upper surface thereof is an inner bottom surface 13a of the work stocker substantially parallel to the top surface of the rocking frame 4, and when the work stocker 10 is rocked, the work W is in this work stocker. It slides on the bottom surface 13a. The end on the TA side of the inner bottom surface 13a of the work stocker is formed as a curved surface 13b rising toward the upper end of the end wall 11a on the TA side, as shown in FIG. It is done.

  A takeout groove 15 is provided on the inner bottom surface 13a of the work stocker. The takeout groove 15 has a groove width such that only the shaft portion Wa of one work W can be inserted among the plurality of works W placed on the inner bottom surface 13a of the work stocker.

  As shown in FIG. 1, the takeout groove 15 is formed with its extending direction oriented in a direction parallel to the rocking axis Y of the work stocker 10, and a position close to the rocking axis Y (for example, the work stocker 10 is It is disposed at a position immediately above the swing axis Y when it is in a horizontal posture. Therefore, when the work stocker 10 is swung by the swing mechanism 30 around the swing axis Y parallel to the take-out groove 15, one of the plurality of works W sliding on the bottom surface 13a of the work stocker inner surface. The shaft portion Wa of the work W can be taken into the removal groove 15.

  As shown in FIG. 3, at both ends of the work stocker inner bottom surface 13a in the extending direction of the take-out groove 15, the protrusions Wb at both ends of the work W having entered the take-out groove 15 are accommodated without interference with the work stocker 10. Recesses 16, 16 are formed. That is, the depths of the recesses 16 and 16 are set to be larger than the protrusion dimension of the protrusion Wb of the work W, and the tip of the protrusion Wb is not in contact with the bottoms of the recesses 16 and 16 .

  FIG. 5 is a cross-sectional view showing a state in which the shaft portion Wa of the work W is inserted into the takeout groove 15 of the bottom surface 13a of the work stocker in an appropriate posture. When the shaft portion Wa of the work W enters the take-out groove 15 in an appropriate posture, the tip end of the protrusion Wb of the work W does not abut on the bottom of the recess 16.

  Since the recess 16 is on both sides in the width direction of the work stocker inner bottom surface 13 a in this manner, the protrusion Wb at both ends of the workpiece W is self-weighted in the recess 16 while the workpiece W slides in the range with the recess 16 Thus, the shaft portion Wa of the work W enters the take-out groove 15 in the posture that is, that is, in the proper posture in which the protruding portions Wb at both ends are facing downward. In some cases, the shaft portion Wa of the workpiece W may enter the take-out groove 15 in the opposite direction (in an improper posture in which the protrusions Wb on both ends are upward) due to the workpiece W being entangled or the like. The measures in that case will be described later.

  A sensor hole 18 is formed at the center of the takeout groove 15, and a work detection sensor 20 for detecting that the work W is in the takeout groove 15 is disposed in the sensor hole 18. As the workpiece detection sensor 20, for example, a non-contact type that optically detects whether or not the workpiece W is in the extraction groove 15 (presence or absence of a workpiece), or a contact type that detects the workpiece W by a stylus. The thing of can be adopted. In addition, a capacitive sensor can also be used as the noncontact sensor.

  Further, the workpiece picking device 100 further includes a workpiece scraping and removing mechanism 50 as a workpiece removing mechanism. The work scraping and removing mechanism 50 removes another work W from the periphery of the take-out groove 15 while leaving only one work W which has entered the take-out groove 15 in an appropriate posture by the swinging of the work stocker 10. The work scraping and removing mechanism 50 includes a block-like scraping member 52, and a scraping drive mechanism 54 having an air cylinder and a guide mechanism for moving the scraping member 52 forward and backward. The scraping member 52 is accommodated in the space 11 d formed in the end wall 11 b on the TB side of the work stocker 10. The scraping drive mechanism 54 is advanced to the TA side from the position of the space 11 d, and is reciprocally driven so as to return to the original position after the front end moves to a position beyond the takeout groove 15.

  The scraping member 52 moves on the take-out groove 15 along the bottom surface 13a of the work stocker, thereby being entangled around the work W and the take-out groove 15 entering the take-out groove 15 in an inappropriate posture. The stuck work W and the like are pushed to the TA side and scraped and removed.

  As shown in FIG. 6, the groove width NA in the in-plane direction perpendicular to the extending direction of the extraction groove 15 is the short side length MA (protrusion of the projection Wb in the rectangular cross section of the shaft Wa of the work W 1) to 2 times the length of the direction orthogonal to the direction in which the image is taken, that is, "MA <NA <2 MA". Further, the groove depth NB of the take-out groove 15 is 0.8 times or more and 1.4 times the long side length MB (the length in the direction in which the protruding portion Wb protrudes) in the rectangular cross section of the shaft portion Wa of the work W It is set to be not more than double, that is, “0.8 MB ≦ NB ≦ 1.4 MB”. The clearance t between the bottom surface of the scraping member 52 and the inner bottom surface 13a of the work stocker is set smaller than the thickness of the work W (= short side length MA of the shaft portion Wa).

  At the opening edge on the TA side of the takeout groove 15, a rounded portion 15 a is provided to facilitate taking out the unnecessary work W from the takeout groove 15 at the time of scraping. The radius of the rounded portion 15 a is set to about 20% of the depth NB of the extraction groove 15. Furthermore, it is desirable that the top opening of the work stocker 10 be covered with an acrylic cover or the like in order to prevent the work W from jumping out.

Next, the operation of the work taking-out apparatus 100 of the present configuration will be described.
FIG. 7 is a view for explaining the operation when the work stocker 10 is swung. FIG. 7 (A) is a work stocker swung so that the direction of arrow X1, that is, the TA side rises and the TB side descends. FIG. 7 (B) is an explanatory view showing a state where the work stocker is rocked so that the direction of arrow X2, that is, the TA side is lowered and the TB side is raised.

  A large number of works W are put into the work stocker 10, and the air cylinder 32 of the swing mechanism 30 is extended and contracted to move the work stocker 10 in the X1 direction as shown in FIG. 7A, and FIG. 7B. Swing in the X2 direction as shown in. Then, the work W in the work stocker 10 slides on the inner bottom surface 13 a of the work stocker in the arrow H 1 direction and the arrow H 2 direction and passes over the takeout groove 15.

  When the work stocker 10 is rocked several times, as shown in FIG. 5, the protrusions Wb at both ends of the work W are accommodated downward by their own weight in the recess 16 and a plurality of passing above the takeout groove 15 The shaft portion Wa of one of the workpieces W enters the takeout groove 15. In that state, as shown in FIG. 7B, when the TA side of the work stocker 10 is lowered, the work W which has not entered the take-out groove 15 is around the curved surface 13b of the inner bottom surface 13a of the work stocker on the TA side. Gather together. By moving the work W to one side (TA side) in this manner, the direction of the work W changed due to the swing can be made parallel to the takeout groove 15, and then it becomes easy to enter the takeout groove 15 next.

  It is confirmed by the work detection sensor 20 whether or not the work W has entered the takeout groove 15. If the work W has not been entered, the swing is repeated again. If the work W is in the take-out groove 15, the scraping and removing mechanism 50 is operated with the TA side of the work stocker 10 lowered.

  FIG. 8 is a view for explaining the operation of the scraping and removing mechanism 50. FIG. 8 (A) is an explanatory view showing a state when the scraping member 52 is advanced, and FIG. 8 (B) is a scraping member 52. It is explanatory drawing which shows the state when making it back to the original position.

  When the work W enters the take-out groove 15, as shown in FIG. 8A, the scraping drive mechanism 54 is driven to position the scraping member 52 in front of the take-out groove 15 as indicated by the arrow F1. Advance to As a result, an extra workpiece (such as another workpiece tangled with the workpiece entering the removal groove 15) Wout caught around the removal groove 15 can be pushed to the TA side and removed from the removal groove 15.

  Even when the work W enters the takeout groove 15 in the reverse direction (with the protrusion Wb facing upward), the scraping member 52 is pressed against the portion (the upward directed protrusion Wb) protruding from the takeout groove 15 As the scraping member 52 advances, the work Wout is pushed out of the removal groove 15 and removed. At that time, as shown in FIG. 6, since the rounded portion 15 a is provided at the opening edge on the TA side of the take-out groove 15, the work W is smoothly slid by the scraping member 52 and removed from the take-out groove 15. be able to. Thereafter, as shown in FIG. 8B, the scraping member 52 is moved in the direction indicated by the arrow F2 and returned to the original position.

  By the above-described operation, one work W which has entered the takeout groove 15 in an appropriate posture is left. Therefore, for example, by grasping the protrusion Wb with the robot hand, it is possible to take out one work W held in the take-out groove 15 in an appropriate posture and supply it to another place. Further, since the work taking-out apparatus 100 is a method of swinging the work stocker 10, the work W can be taken out with a simple structure, and cost reduction and downsizing can be simultaneously achieved.

  In the first configuration example, the air cylinder 32 is used as a drive source for swinging the work stocker 10, but as in the case of the workpiece picking device 100B of the second configuration example shown in FIG. A rocking mechanism 30B using a motor 32B as a drive source may be adopted. In this case, the rotational driving force of the motor 32B is transmitted to the rocking shaft 5 by the gears 36 and 38.

  Further, in the first configuration example, the case where the work scraping removal mechanism 50 is used as the work removal mechanism is shown, but as in the case of the work taking out apparatus 100C of the third configuration example shown in FIG. The removal mechanism 60 may be employed.

  FIG. 10 is a perspective view showing the entire configuration of a workpiece pickup device 100C of the third configuration example, and FIG. 11 is a view for explaining the operation of the workpiece push-down removal mechanism 60 of the workpiece pickup device 100C of FIG. 11 is an explanatory view showing a state before operating the push-down member 62, and FIG. 11 (B) is an explanatory view showing a state where the push-down member 62 is operated. FIG. 12 is a view for explaining the state when the push-down member 62 of FIG. 11 is pushed down, and FIG. 12 (A) shows the push-down member 62 when the work W enters the take-out groove 15 in a proper posture. FIG. 12 (B) shows that the lowered push-down member 62 abuts against the work W having an inappropriate posture or the unnecessary work W, and the work W jumps up and is removed. FIG.

  The work depressing and removing mechanism 60 includes a depressing member 62 configured as a rotary striking arm, and a driving mechanism 64 that rotates the depressing member 62 and causes a tip (lower end) of the depressing member 62 to strike a part of the workpiece W. And. The push-down member 62 is configured as an L-shaped striking arm, and rotates in the arrow G direction about the proximal end connected to the drive mechanism 64.

  Then, the TA side of the work stocker 10 is lowered in a state where the work W is contained in the takeout groove 15 as shown in FIG. 11A, and the pressing and removing mechanism 60 is operated while maintaining that state. As shown in (B), the push-down member 62 is lowered in the arrow G1 direction.

  The depressing member 62 is lowered from above the recess 16 to the height of the inner surface 13 a of the work stocker, as shown in FIG. 12 (A). When part of the workpiece W protrudes upward from the recess 16 as shown in FIG. 12 (B) by lowering the push-down member 62, the projected portion is struck to depress the workpiece W, thereby, The workpiece W is ejected from the takeout groove 15.

  That is, the pressing member 62 is lowered when the work W enters the take-out groove 15 in an inappropriate posture or when an unnecessary work Wout is entangled around the take-out groove 15. By lowering the push-down member 62, the work Wout in a state of projecting upward from the recess 16 can be hit and pushed down, and the work Wout can be ejected from the takeout groove 15. Therefore, after lowering the push-down member 62, the work stocker 10 is further rocked to leave only one work W having entered the take-out groove 15 in a proper posture, and the other work W from the periphery of the take-out groove 15 It can be removed. Further, it is possible to take out the workpieces W having a shape having a projecting portion Wb projecting in a specific one direction crossing the axial direction at the end of the shaft portion Wa one by one in a state where they are aligned in a fixed direction.

  Thus, the present invention is not limited to the above-described embodiment, and those skilled in the art can change or apply the components of the embodiment in combination with one another, based on the description of the specification, and based on known techniques. It is also the intention of the present invention to be included in the scope for which protection is sought.

  For example, the work W can be taken out more efficiently and reliably by incorporating the scraping removal mechanism 50 of the first configuration example and the push-down removal mechanism 60 of the third configuration example together so as not to interfere with each other. Will be able to

10 Work stocker 13a Work stocker inner bottom surface 15 Extraction groove 16 Recess 20 Work detection sensor 30, 30B Swing mechanism 50 Work scraping removal mechanism (Work removal mechanism)
52 Scraping member 60 Workpiece pressing and removing mechanism (Workpiece removing mechanism)
62 Depressing member 100, 100B, 100C Work picking device 200 Linear guide device 202 Guide rail 203 Slider 206 Rolling element 209 Second holding plate (work W)
E Uniaxial direction Y Swing axis of work stocker W Work Wa shaft Wb Protrusion NA Groove width NB Groove depth MA Short side length MB Long side length

Claims (6)

One of the workpieces is accommodated from a work stocker which has a plurality of workpieces each having a shaft portion extending in one axial direction and having at one axial end portion of the shaft portion a projection projecting in a specific one direction intersecting the uniaxial direction. It is a work picking device to take out, and
The work stocker is formed with an extraction groove on the inner bottom surface of the work stocker, into which only the shaft portion of the work can enter.
A rocking mechanism for rocking the work stocker about an axis parallel to the takeout groove so that the work enters the takeoff groove;
A work removing mechanism for removing another work from the periphery of the take-out groove, leaving only one work which has entered the take-out groove in an appropriate posture by the swing;
Equipped with
At an end of the inner bottom surface of the work stocker in the extending direction of the take-out groove, a recess is formed to receive the protrusion of the work that has entered the take-out groove,
The work removing mechanism moves over the take-out groove along the inner bottom surface of the work stocker, thereby scraping a work which has entered the take-out groove in an inappropriate posture or a work staying around the take-out groove. Equipped with a scraping member to be removed,
Work picking device.   The workpiece pickup device according to claim 1, wherein the workpiece stocker includes a workpiece detection sensor that detects the presence or absence of a workpiece that has entered the pickup groove.   3. The work taking-out apparatus according to claim 1, wherein the work is a holding plate which is used in a linear guide device and holds a rolling element between a guide rail and a slider. The cross-sectional shape perpendicular to the axial direction of the shaft portion of the holding plate is a rectangular shape having a short side and a long side,
The groove width in the direction perpendicular to the extending direction of the take-out groove is set to 1 or more and 2 or less times the short side length of the rectangular cross section of the holding plate,
4. The work taking-out apparatus according to claim 3, wherein a groove depth of the taking-out groove is set to 0.8 times or more and 1.4 times or less of a long side length of the rectangular cross section of the holding plate.   The workpiece picking device according to any one of claims 1 to 4, wherein a rounded portion is provided at an opening edge of the picking groove.   A manufacturing method of a linear guide device using the work taking-out device according to any one of claims 1 to 5.

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