JPH0637222U - Plate-shaped press parts front / back discriminating device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a plate-shaped press part front / back discriminating device capable of automatically discriminating the front / back of a plate-shaped press component. [Structure] Pressing for pushing one end edge of the plate-shaped press component 6 toward the guide face 1a and then releasing at an intermediate position of a passage 1 having a guide face 1a for supporting one surface of the plate-shaped press component 6. It has a member 4. A leaf spring 8 is provided in the passage 1 at a position opposite to the pressing member 4. One edge of the pressed plate-shaped press component 6 jumps up only when the surface in contact with the guide surface 1a is a sagging surface. then,
The leaf spring 8 maintains its jumping posture. Therefore,
Since the posture maintained after being pressed by the front and back of the plate-shaped press component 6 is different, the front and back can be automatically determined.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a front / back surface discriminating apparatus for a plate-shaped press component, and more particularly to a plate-shaped press component front / back surface discriminating apparatus that utilizes a change in the posture of the component due to an external force applied to the plate-shaped press component.

[0002]

[Prior art]

 Conventionally, as shown in FIG. 8, a vibrator (not shown) is built in as a parts feeder device for aligning and supplying parts to a worker or a robot in a fixed posture in a product assembling process. In the central part of the device, a component stock portion 22 for storing a large number of components 24, a passage 21 formed in a spiral shape so as to surround the outer periphery of the component stock portion 22, and disposed at an intermediate position of the passage 21. And the discriminating member 23 that has been formed. Further, the downstream side of the passage 21 can be connected to a component receiving portion (not shown) in the next process. In this parts feeder device, the vibrator vibrates the parts stock part 22 and the passage 21 so as to move the parts 24 from the parts stock part 22 to the downstream side of the passage 21. Therefore, the component 24 is transported from the component stock portion 22 toward the downstream side of the passage 21 in various postures. The purpose of this device is to supply the component 24 with the orientation of the component 24 in a predetermined orientation, and the determination member 23 determines whether the orientation of the transported component 24 is the predetermined orientation. It has a function. That is, the component 24 can pass through the discriminating member 23 only when the orientation of the component 24 is a predetermined orientation, and in the other orientations, the component 24 cannot pass through the discriminating member 23 and deviates from the passage 21. .

Therefore, the component 24 that is conveyed to the component receiving portion after passing through the discriminating member 23 is limited to the one having the predetermined orientation.

[0004]

[Problems to be solved by the device]

 However, in the conventional technique, the orientation of the posture can be easily discriminated by the discriminating member for the component having the shape feature such as the unevenness, but for the flat plate-shaped press component, the same discriminating means is used. It does not have a characteristic shape that can distinguish the front and back. Therefore, there was no choice but to make a visual judgment from the difference in the glossiness between the front and back.

However, there are many cases where it is impossible to discern at a glance, such as painted or plated products, or those whose shapes are vertically and horizontally symmetrical, which may cause physical and mental distress to the operator. Therefore, there is a problem that the processing efficiency is low by visual judgment and that the assembly process cannot be automated.

An object of the present invention is to provide a plate-shaped press part front / back discriminating apparatus capable of automatically discriminating the front and back regardless of the shape of the plate-shaped press component.

[0007]

[Means for Solving the Problems]

 In order to solve the above problem, in the plate-shaped press part front / back discriminating apparatus according to the present invention, the posture of the plate-shaped press part is changed by positively applying an external force to the plate-shaped press part. I try to maintain my posture. That is, the means taken in the present invention is provided with a guide surface with which one surface of the plate-shaped press part is in contact, and constitutes a passage for conveying the plate-shaped press part. The pressing means for pressing one end of the plate-shaped press part conveyed toward the guide surface and then releasing it, and the means for ensuring the rising posture to prevent the return motion of the other end from jumping up. It is that.

Here, it is preferable that the pressing surface of the pressing means has a normal line direction on the plate-shaped press part side.

Further, the passage has an inclined guide surface inclined with respect to the horizontal plane, and a lower support surface for supporting a lower end edge of the plate-shaped press part conveyed while one surface is in contact with the inclined guide surface. Is preferred.

Further, it is preferable that the ascending posture securing means is a narrow portion formed on the lower support surface.

[0011]

[Action]

 In the plate-shaped press part front / back discriminating device of the present invention, the plate-shaped press part supplied to the device is conveyed on the passage with one surface in contact with the guide surface, and is arranged at an intermediate position in the passage. By the pressing means, one edge of the plate-shaped pressed part is pressed against the guide surface. Here, the surface in contact with the plate-shaped pressed part is generally different between the rounded side sagging surface and the edge side caulking surface because of the difference in shape that is inevitably generated at the edge by pressing. Can be divided into

Therefore, when the guide surface side of the pressed plate-shaped press component is the sagging surface, the other edge is flipped up. After that, the pressing member of the pressing means separates from the plate-shaped press part, and the plate-shaped press part tries to return to the posture before being pressed, but by the bounce-posture securing means that prevents the return movement of the bounce-up, The rising posture of the plate-shaped press parts will be maintained. On the other hand, when the guide surface side of the plate-shaped press part is a burring surface, the edge of the plate-shaped press part is an edge, so the plate-shaped press part does not change its posture and is pressed against the guide surface in the same position. . Therefore, the plate-like press component does not take the jumping-up posture and is not held by the jumping-up posture securing means. Therefore, it is possible to discriminate between the front and back of a plate-shaped press part by the presence or absence of a jumping motion when a pressing force is applied.

[0013]

【Example】

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

First Embodiment FIG. 1 shows an outline of a plate-shaped press part front / back discriminating apparatus according to the first embodiment. This plate-shaped press parts front / back discriminating apparatus includes a drive main body 12 having a vibrator (not shown) built-in, a parts stock section 2 for storing a large number of parts 6 in the upper center thereof, and a parts stock section 2 The passage 1 is formed in a spiral shape so as to surround the outer periphery, and the passage 1 has a front / back discrimination area A in the middle thereof, and the front / back discrimination mechanism 11 is configured to include the front / back discrimination area A. There is. As shown in FIG. 2, the passage 1 is composed of a guide surface 1a that contacts one surface of the component 6 and support surfaces 1b that contact the edges of the component 6 on both sides thereof. Further, on the downstream side of the front and back discrimination area A of the passage 1, a distribution passage 5 including an extension surface 1c of the upstream guide surface 1a and a branch guide surface 1e branched from the guide surface 1a via a slope surface 1d is provided. Has been formed. Further, the downstream side of the distribution passage 5 can be connected to a component receiving portion (not shown) in the next process. The front / back discriminating mechanism 11 includes a pressing member 4 that presses one end of the component 6 against the guide surface 1a, an air cylinder 9 that vertically reciprocates the pressing member 4, a cylinder mounting portion 7 that fixes the pressing member 4, and a passage. 1 has a leaf spring 8 which maintains its posture when the component 6 is pressed at the position opposite to the pressing member 4 and one edge thereof jumps up. The guide surface 1a is provided with a sensor 13 on the upstream side of the front / back discriminating area A. When the sensor 13 detects the passage of the component 6, the front / back discriminating mechanism 11 is activated. Since the passage 1 and the distribution passage 5 are made of a super hard material, the wear of the component 6 is reduced. The pressing member 4 is made of Delrin resin or Teflon (trade name) rubber in order to apply a pressing force without damaging the parts.

Next, the operation of the plate-shaped press part front / back discriminating apparatus of this example will be described below.

First, a large number of components 6 are supplied to the component stock section 2 manually or automatically. At this time, the parts 6 are in a state of overlapping each other. The vibrator built in the drive body 12 vibrates the component stock section 2 and the passage 1 so as to convey the component 6 to the downstream side of the passage 1 from the component stock section 2. Therefore, although the component 6 is conveyed by its vibration, the larger the area in contact with the component stock section 2 and the passage 1, the faster the component 6 moves, and the overlapping of the component 6 is released. When the sensor 13 detects the passage of the component 6, the air cylinder 9 operates and the pressing member 4 presses one edge of the component 6 against the guide surface 3a. Here, since the posture of the component 6 after being pressed differs depending on which surface is in contact with the guide surface 3a, it will be described below.

First, as shown in FIG. 3A, when the sag surface 6a is in contact with the guide surface 3a, the sagging shape of the edge 6c of the sag surface is not in contact with the guide surface 3a. In this state, the component 6 is pressed against the end edge 6d by the pressing member 4. As a result, the component 6 changes to a posture in which one end edge is flipped up to above the convex portion 8a while bending the leaf spring 8 in the a direction. After that, when the pressing member 4 is pulled back, the component 6 tries to return to the posture before being pressed, but the returning movement is blocked by the convex portion 8a of the leaf spring 8 and the rising posture is maintained. Thereafter, the component 6 is conveyed from the slope surface 1d onto the inner surface 1e of the branching proposal. On the other hand, when the burring surface 6b is in contact with the inclined guide surface 3a, the edge shape of the edge 6d of the burring surface is in contact with the guiding surface 3a, as shown in FIG. 3 (b). Here, the component 6 does not change its posture even if it is pressed by the pressing member 4. Therefore, the component 6 is carried on the extension surface 1c from the guide surface 1a. As described above, the plate-shaped press part front / back discriminating apparatus of the present embodiment discriminates the front / back of the component 6 by the front / back discriminating mechanism 11 and divides into the branch guide surface 1 e and the extension surface 1 c of the distribution passage 5, respectively. Transport.

In this embodiment, the passage is formed in a spiral shape in order to avoid an increase in the size of the apparatus, but the present invention is not limited to this, and the components may be conveyed linearly. Further, although the guide surface 1a is entirely flat, for example, the central portion may be a recess while leaving a width capable of supporting the component. In this case, the vibration is effectively applied to the passage by the vibrator, and the contact area with the component surface is reduced, so that the frictional resistance during the component transportation can be reduced and the component transportation can be further facilitated. Further, in this example, the air cylinder is adopted as the operation source of the pressing member 4, but it may be any one as long as the pressing member 4 is pressed against the component 6 and then released. Furthermore, during the pressing operation of the pressing member 4, the component 6 may be in either the moving state or the stopped state.

Further, if it is a plate-shaped press part, it can be discriminated regardless of its shape, and in particular, it can automatically discriminate even the top-bottom and left-right symmetrical shapes whose front and back are difficult to discriminate by the outer diameter shape. can do.

[Embodiment 2] FIG. 4 shows an outline of a plate-shaped press part front / back discriminating apparatus according to a second embodiment of the present invention, and FIG. 5 shows a constitution of a discriminating passage 3 of the same. The parts other than the front and back discriminating mechanism 11 of this device, for example, the parts stock section 2 and the like are the same as those in the first embodiment, and a description thereof is omitted. Similar to the first embodiment, the spirally formed passage 1 has front and back discrimination areas A at two points in the middle thereof, and the front and back discrimination mechanism 11 is configured to include the front and back discrimination areas A. In this example, the front / back discriminating mechanism 11 has a discriminating passage 3 having a slanted guide surface 3a and a lower support surface 3b for supporting the edge of the component 6, and one edge of the component 6 on the sloped guide surface 3a. It has a pressing member 4 for pressing, an air cylinder 9 for vertically reciprocating the pressing member 4, and a cylinder mounting portion 7 for fixing it. Here, the pressing surface 4a of the pressing member 4 is formed such that its normal direction T _N is on the component 6 side, as described later. The discrimination passage 3 is formed in a range including the front / back discrimination area A on the upstream side and the front / back discrimination area A on the downstream side, and the inclined guide surfaces 3a at both ends thereof are flush with the guide surface 1a of the passage 1. ing. Further, a return passage 10 is provided so as to surround the outside of the discrimination passage 3 and communicate with the parts stock section 2. The supporting width dimension of the lower support surface 3b of the discrimination passage 3 is set to be slightly smaller than the thickness dimension of the component 6, and further, in the front / back discrimination region A, the narrow portion 3c in a range wider than the width dimension of the component 6 is provided. Has been formed. Further, the inclined guide surface 3a is provided with a sensor 13 on the upstream side of the front / back discrimination area A, and when the sensor 13 detects passage of the component 6, the front / back discrimination mechanism 11 is activated.

In the present embodiment, the component 6 conveyed to the discriminating passage 3 tilts its posture along the inclined guide surface 3a and further slides until it comes into contact with the lower support surface 3b by its own weight. At this time, the support width dimension of the lower support surface 3b is set to be slightly smaller than the thickness dimension of the component 6, so that the upper component 6 of the components 6 conveyed in an overlapping manner is the lower support surface 3b. It is not supported by 3b, falls into the return passage 10 and is supplied again to the parts stock section 2. In this way, the component 6 is further transported on the discrimination passage 3 in the individual state. When the sensor 13 detects the passage of the component 6, the air cylinder 9 operates and the pressing member 4 presses one edge of the component 6 against the guide surface 3a. Here, when the sagging surface 6a comes into contact with the inclined guide surface 3a, as shown in FIG. 6A, the component 6 follows the sagging shape of the upper end edge 6c of the sagging surface so that the lower end edge jumps up. Change your posture. After that, when the pressing member 4 is pulled back and the component 6 is opened, the component 6 is not supported by the narrow portion 3c of the lower support surface 3b, falls from the determination passage 3 into the return passage 10, and is supplied to the component stocking portion 2 again. To be done. On the other hand, when the burring surface 6b is in contact with the inclined guide surface 3a, the edge shape of the edge 6d of the surface is in contact with the inclined plan inner surface 3a as shown in FIG. The edge does not bounce. Therefore, the component 6 is conveyed to the downstream side of the passage 1 without departing from the determination passage 3.

As described above, in the plate-shaped press part front / back discriminating apparatus of the present embodiment, the front / back discriminating mechanism 11 discriminates between the front and back of the component 6, and the one in which the burial surface 6b is in contact with the inclined guide surface 3a is provided on the downstream side of the passage 1. Transport to.

Here, the conditions for forming the pressing surface 4a will be described.

Since the posture of the component 6 being conveyed is not constant, the relative position of the edge 6d with respect to the lower surface 4b is different for each component 6 to be pressed. Therefore, as shown in FIG. 7A, the pressing margin L between the lower surface 4b of the pressing member 4 and the edge 6d of the component 6 needs to be set so as to correspond to the variation. However, when the upper edge 6c of the sagging surface of the component 6 is minute, the component 6 cannot be expected to bounce unless the pressing margin L is small. Therefore, the pressing margin L must be set so as to satisfy these contradictory conditions. Further, when the normal direction T _N of the pressing surface 4a does not face the component 6 side in this way, the pressing surface 4a also functions to press the component 6 and at the same time suppress the jumping thereof, and as a result, The lower edge of the part 6 cannot be flipped up.

Therefore, as shown in FIG. 7B, when the pressing surface 4a is formed so that its normal direction T _N is on the component 6 side, the edge of the component 6 with respect to the lower surface 4b of the pressing member 4 is Even if the relative position of 6d varies, the contact condition between the pressing surface 4a and the edge 6d is always the same. Further, the pressing surface 4a having the normal direction T _N on the side of the component 6 also has a relief shape that does not prevent the component 6 from jumping up. Therefore, the lower edge of the component 6 can be reliably flipped up. However, attention must be paid to the setting of the normal direction T _N. That is, as shown in FIG. 7C, the component 6 tends to move in the surface direction f as the normal direction T _N of the pressing surface 4a is set to the side of the rising edge of the component 6. Therefore, the component 6 is sandwiched between the pressing surface 4a and the narrow portion 3c of the lower support surface 3b, and the other edge cannot be flipped up. Therefore, the posture of the component 6 does not change regardless of which of the sagging surface and the burring surface of the component 6 faces the inner surface 3a side, and thus it is impossible to distinguish between the front and the back.

In this example, since the pressing member 4 is capable of changing its position with respect to the lower support surface 3b, for example, when discriminating a component having a larger outer diameter, the pressing member 4 is positioned above the inclined guide surface 3a. For example, the pressing member 4 can be arranged on the outer peripheral surface, and it is possible to cope with parts having different outer diameter dimensions. Further, when different parts having different plate thicknesses are discriminated by the same device, it is possible to deal with them only by changing the pressing stroke of the pressing member 4 so that the lower edge of the parts jumps up. Therefore, the front / back discriminating mechanism 11 has versatility with respect to the kind of parts. In this embodiment, the jumping posture ensuring means is the narrow portion 3c of the lower supporting surface 3b, but the lower supporting surface 3b itself may be the jumping posture securing means. Further, although the support width dimension of the lower support surface 3b is made slightly smaller than the thickness dimension of the component 6, it may be set regardless of the thickness dimension of the component 6. Furthermore, although the passage for conveying the plate-shaped press parts is an inclined surface, if the edge at the pressing position of the plate-shaped press parts is in contact with the guide surface, the plate-shaped press parts will not be affected regardless of the slope of the passage. The other edge can be flipped up. Further, although the front / back discriminating mechanism 11 is provided at two places, the front / back discriminating mechanism 11 may be provided at one place depending on the shape and the plate thickness of the component 6, and when the front and back discriminating mechanism 11 is provided at several places, it is possible to prevent the discrimination failure. You can make a reliable judgment. Further, although an air cylinder is adopted as the operation source of the pressing member 4, it is sufficient that the pressing member 4 is released after being pressed against the component 6. Furthermore, during the pressing operation of the pressing member 4, the component 6 may be in either the moving state or the stopped state. As in the case of the first embodiment, this embodiment can discriminate regardless of the shape of a plate-shaped press part. In particular, even if the shape is vertically and horizontally symmetrical, it is difficult to distinguish the front and back sides by the outer diameter shape. Can be discriminated from each other.

[0027]

[Effect of device]

 As described above, in the plate-shaped press part front / back discriminating apparatus of the present invention, the pressing member that presses one edge of the plate-shaped press part conveyed on the passage toward the guide surface and then separates it, and the other. It is characterized in that it has a jumping posture securing means for preventing the jumping back movement of the edge of the. Therefore, the following effects are obtained.

The plate-shaped press part whose one edge is pressed against the guide surface changes its posture so that when the guide surface side is a sagging surface, the other edge is flipped up, and the bounce-up motion that prevents the return movement of that bounce-up is performed. While the posture securing means keeps the posture as if it was flipped up, when the guide surface side is a burial surface, it does not change its posture even if it is pressed. In this manner, the plate-shaped press part can be discriminated from the front side and the back side by the presence or absence of the jumping motion when the pressing force is applied by the pressing means. In addition, since the sagging shape that can be formed on the edge of one surface during press working is used, it is possible to easily distinguish even the top and bottom symmetrical shapes whose front and back are difficult to distinguish from the outer diameter shape. Therefore, regardless of the shape of the plate-shaped press part, it is possible to automatically discriminate between the front and back.

By forming the pressing surface of the pressing means so that its normal direction is on the plate-shaped press part side, the pressing surface and the one edge of the plate-shaped press part are fluttered at the contact position. However, the contact conditions are always the same. Furthermore, since the plate-shaped press part can be reliably bounced up without suppressing the bounce up, accurate discrimination is possible.

In order to prevent the return movement of the flipped lower edge when the passage is composed of an inclined guide surface inclined with respect to the horizontal plane and a lower support surface supporting the lower edge of the plate-shaped press part. By forming the narrow portion on the lower support surface, a complicated mechanism can be omitted, and the reliability of the device can be improved. Also, if the support width of the lower support surface is set to be slightly smaller than the thickness of the plate-shaped press part, the upper part of the overlapped plate-like press parts is allowed to fall freely from the passage, Since the pressed parts can be individually reached to the pressing means, the passage can be shortened and the device can be downsized.

[Brief description of drawings]

FIG. 1 is a perspective view showing an outline of a plate-shaped press part front / back discriminating apparatus according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a front / back discriminating mechanism in the same apparatus.

FIG. 3 (a) is a sectional view showing a state in which the inclined guide surface side of the plate-shaped press part conveyed in the same passage in the apparatus is a sagging surface, and FIG. 3 (b) shows the same passage in the apparatus. FIG. 6 is a cross-sectional view showing a state where the inclined guide surface side of the plate-shaped press part to be formed is a burial surface.

FIG. 4 is a perspective view showing an outline of a plate-shaped press part front / back discriminating apparatus according to a second embodiment of the present invention.

FIG. 5 is a perspective view showing a front / back discriminating mechanism in the same apparatus.

6A is a cross-sectional view showing a state where the inclined guide surface side of the plate-shaped press part conveyed in the same passage in the same device is a sag surface, and FIG. 6B is a sectional view showing the same passage in the same device. FIG. 6 is a cross-sectional view showing a state where the inclined guide surface side of the plate-shaped press part to be formed is a burial surface.

FIG. 7A is a cross-sectional view showing a case where the pressing surface of the pressing member in the apparatus is not in the normal direction to the component side;
(B) is sectional drawing which shows the case where the normal line direction of the same pressing surface is a component side, (c) is a sectional view which shows the case where the normal line direction of the same pressing surface is the flip-up edge side of a component.

FIG. 8 is a schematic perspective view of a conventional parts feeder device.

[Explanation of symbols]

 1 ... Passage 1a ... Guide surface 1b ... Support surface 1c ... Extension surface 1d ... Slope surface 1e ... Branching guide surface 2 ... Parts stock part 3 ... Judgment passage 3a ... Inclination guide surface 3b ... Lower support surface 3c ... Narrow portion 4 ... Pressing member 4a ... Pressing surface 4b ... Lower surface 5 ... Distribution passage 6 ... Parts 6a ... Drain surface 6b ... Burr surface 6c ..Upper edge 6d of the sagging surface..edge 7 ... cylinder mounting portion 8 ... leaf spring 9 ... air cylinder 10 ... return passage 11 ... front / back discriminating mechanism 12 ... driving Main body 13 ... Sensor 21 ... Passage 22 ... Parts stock 23 ... Judgment member 24 ... Parts

Claims (4)

[Scope of utility model registration request] 1. A guide surface with which one surface of the plate-shaped press component is in contact is provided, and one end edge of the plate-shaped press part is directed to the guide surface at an intermediate position of a passage for conveying the plate-shaped press part. 2. A plate-shaped press component front / back discriminating apparatus comprising: a pressing unit that presses and releases the plate-shaped pressed component; and a flip-up posture ensuring unit that prevents a return motion of the other edge of the plate-shaped pressed component from jumping up. 2. The plate-shaped press part according to claim 1, wherein the pressing surface of the pressing member for pressing the plate-shaped press part of the pressing means has a normal line direction toward the plate-shaped press part. Front and back discriminating device. 3. The inclined passage according to claim 1, wherein the passage is in contact with the one surface of the plate-shaped press part and is inclined with respect to a horizontal plane, and the passage of the plate-shaped press part is below the inclined guide surface. And a lower support surface that supports a lower edge, a plate-shaped press component front / back discriminating apparatus. 4. The plate-shaped press part front / back discriminating apparatus according to claim 3, wherein the flip-up posture securing means is a narrow portion formed on the lower support surface.