JP4779717B2 - Parts conveyor - Google Patents

Description

  The present invention relates to a component conveying apparatus that can hold a component and move a predetermined distance and change the direction of the component.

  As a component conveying device that holds and conveys components in the conveying direction and rotates, a component conveying device 11 as shown in FIGS. 3 and 4 is known. The component conveying device 11 has a conveying device main body 13, and the conveying device main body 13 is provided with a horizontal moving body 17 via a horizontal driving body 15 that moves in the horizontal direction. The horizontal moving body 17 is provided with a rotation driving body 21 through an inclination driving body 19 so as to be movable in the inclination direction. A component holder 23 is rotatably held by the rotary drive body 21, and a component 25 is held by the component holder 23.

  In such a configuration, the component conveying apparatus 11 first operates the tilt direction driving body 19 to move the rotation driving body 21 and the component holding body 23 held by the rotation driving body 21 obliquely downward. The component holder 23 is translated from position A to position B. Next, the horizontal driving body 15 is operated to move the horizontal moving body 17 horizontally. Then, the component holder 23 moves in parallel from position B to position C. Next, when the rotation driving body 21 is operated, the component holding body 23 rotates from the position C to the position D. In this way, the component transport apparatus 11 performs a parallel movement in the tilt direction, a parallel movement in the horizontal direction, and a rotational movement with respect to the component holder 23.

  However, this component conveying device 11 requires three driving bodies, that is, a horizontal driving body 15, an inclined driving body 19, and a rotational driving body 21 in order to cause the component holding body 23 to move as described above, and its structure is complicated. In addition, there is a problem that the cost increases. Further, since the inclined driving body 19 and the rotary driving body 21 are mounted on the horizontal moving body 17, there is a problem in that the moving portion is heavy and cannot move at high speed and with high responsiveness.

  On the other hand, Patent Documents 1 to 4 disclose a transport device that uses a cam mechanism, but does not show what causes the component holder to rotate after translation.

JP-A-7-144734 JP-A-5-139533 JP-A-2-41840 JP-A-7-67965

  The object of the present invention is to solve the above-mentioned problems, and with a low cost and simple structure, the component holder can be rotated as well as horizontally moved, and the components can be moved at high speed and with good responsiveness. It aims to provide a device.

In order to solve the above-described problems , the present invention provides a conveying device main body (33) having a plate-like cam plate (53), and a first cam groove provided in the conveying direction on the cam plate (53). (55), a second cam groove (61) provided on the cam plate (53) in a direction along the first cam groove (55), and the first cam groove (55). A component holder (45) having a first roller (51) to be engaged and a second roller (52) engaged with the second cam groove (61) and holding the component, and the component holder (45 ) In the conveying direction, the first cam groove (55) is inclined to the first inclined portion (57) formed in an inclined manner and horizontally in the conveying direction. And the second cam groove (61) has the first horizontal portion (59) formed on the first horizontal portion (59). A second inclined portion (63) formed in parallel to the oblique portion, a second horizontal portion (65) formed in parallel to the first horizontal portion, and an end opposite to the second inclined portion And the second cam groove is formed longer than the first cam groove by the arc portion, and the driving body (35). Is provided with a horizontal moving body (37) driven in the horizontal direction by the driving body, and an arm (43) is provided on the horizontal moving body through a vertical movement mechanism (40) so as to be movable up and down. The component holder is pivotally supported on the arm by a shaft (47), and the shaft is positioned at an intermediate point between the first roller and the second roller. By moving the horizontal moving body horizontally by driving, the component holding body is moved into the first and second cam grooves. Go I, and adopts a means for performing tilting movement and horizontal movement and rotational movement of the left upright. According to this means, the horizontal and rotational movement of the component holder can be performed by one drive device. Therefore, it is possible to provide a low-cost and simple structure component conveying apparatus, and it is possible to reduce the weight of the moving part, and it is possible to move at high speed and with high responsiveness.

Moreover, in order to solve the said subject, the circular arc part (69) is formed in the circular arc shape centering on the edge part (71) on the opposite side to the 1st inclination part of a 1st cam groove (55). Means can be employed. If it does in this way, rotation movement of a component holding body can be performed more reliably.

Also, order to solve the above problems, part article holder (45) comprises a first roller (51) and the first cam groove through a second roller (52) (55) a second cam A means whose weight is supported by the groove (61) can be employed. Therefore, the moving weight of the component holder can be reduced, and a component moving device that can move at high speed and respond at high speed and has little impact can be provided.

  In addition, the code | symbol in the parenthesis attached | subjected to each said means is an example which shows a corresponding relationship with the specific means as described in embodiment mentioned later.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 and 2.

  1 and 2 show a component conveying device 31 of the present invention. The component conveying device 31 has a conveying device main body 33. A horizontal moving body 37 is provided in the transport device body 33 through a horizontal driving body 35 so as to be horizontally movable. The horizontal moving body 37 is provided with an elevating rail 39 in the vertical direction, and an arm 43 is provided on the elevating rail 39 via a guide member 41 so as to be movable up and down. Here, the elevating rail 39 and the guide member 41 constitute a vertical direction moving mechanism 40. A component holder 45 is pivotally supported on the arm 43 by a shaft 47. The component holder 45 holds a component 49 at its upper end. A pair of first rollers 51 are provided on both sides of the component holder 45 so as to protrude outward from the shaft 47 in a downward position. In addition, a pair of second rollers 52 are provided so as to protrude outward from the shaft 47 at positions equal to the distance between the shaft 47 and the first roller 51.

  On the other hand, the conveying apparatus main body 33 has a pair of plate-shaped cam plates 53 on both sides in the conveying direction, as shown in FIG. A first cam groove 55 is formed on the inner surface of the pair of cam plates 53. The first cam groove 55 includes a first inclined portion 57 formed to be inclined and a first horizontal portion 59 connected to the first inclined portion 57 and formed horizontally in the transport direction. is doing. A second cam groove 61 is formed above the first cam groove 55 in parallel with the first cam groove 55. The second cam groove 61 is formed with a second inclined portion 63 formed in parallel to the first inclined portion 57 and a second horizontal portion 65 formed in parallel with the first horizontal portion 59. ing. Here, the vertical distance between the first inclined portion 57 and the second inclined portion 63 and the vertical distance between the first horizontal portion 59 and the second horizontal portion 65 are both provided in the component holder 45. The distance between the first roller 51 and the second roller 52 is equal. The second cam groove 61 has an arc portion 69 extending from the end portion 67 at an end portion 67 on the opposite side of the second inclined portion 63 of the second horizontal portion 65. The arc portion 69 is a circle whose center is the end portion 71 opposite to the first inclined portion 57 of the first cam groove 55 and whose radius is the distance between the first cam groove 55 and the second cam groove 61. It is formed in an arc shape.

  The component holding body 45 engages a pair of first rollers 51 provided on both sides of the lower part thereof with first cam grooves 55 formed on the cam plates 53 on both sides, and a pair of parts provided on both sides of the upper part. The second roller 52 is engaged with a second cam groove 61 formed in the cam plate 53 to support its weight.

  In such a configuration, when the horizontal driving body 35 is operated from the state in which the component holding body 45 is at A in FIG. 1 and the horizontal moving body 37 is moved in the left direction in FIG. The second roller 52 moves along the second inclined portion 63 along the inclined portion 57. Here, since the vertical distance between the first inclined portion 57 and the second inclined portion 63 is always equal to the distance between the first roller 51 and the second roller 52, the component holder 45 is Without rotating, the robot moves parallel to the lower side in an upright state and reaches position B. That is, the arm 43 descends along the elevating rail 39, but the component holder 45 moves while maintaining an upright state without rotating with respect to the arm 43.

  Next, when the horizontal driving body 35 is operated from this position B and the horizontal moving body 37 is moved to the left in FIG. 1, the first roller 51 is moved along the first horizontal portion 59 to the second roller. 52 moves to the left in FIG. 1 along the second horizontal portion 65. Here, since the vertical distance between the first horizontal portion 59 and the second horizontal portion 65 is equal to the distance between the first roller 51 and the second roller 52, the component holder 45 is an arm. Without rotating with respect to 43, it moves parallel to the ends 67, 71 in the upright state and reaches position C.

  Further, from this position C, when the horizontal driving body 35 is operated to move the horizontal moving body 37 to the left in FIG. 1, the first roller 51 stays at the end 71 of the first horizontal portion 59. Thus, the second roller 52 moves in the arc portion 69 following the second horizontal portion 65 and moves to the end 73 thereof. Here, since the arc portion 69 is formed in an arc shape with the end portion 71 of the first horizontal portion 59 as the center, the component holder 45 rotates counterclockwise in FIG. Position D is reached.

  As described above, in the component conveying device 31, the horizontal moving body 37 is provided with the up-and-down rail 39 in the vertical direction, and the arm 43 is provided on the up-and-down rail 39 via the guide member 41 so as to be movable up and down. The arm 43 has a component holder 45 rotatably supported by a shaft 47, and the component holder 45 has a first roller 51 and a second roller 52 that are equidistant from each other on the shaft 47. The vertical distance between the first inclined portion 57 and the second inclined portion 63 and the vertical distance between the first horizontal portion 59 and the second horizontal portion 65 are always the first roller 51. Since the arc portion 69 is formed on an arc centered on the end portion 71 of the first horizontal portion 59, the single driving body 35 is operated. By simply moving the horizontal moving body 37 horizontally, the component holder 5 is translated from the position A in the upright state without rotating from the position A to reach the position B, and in the upright state, it is translated to the end portions 67 and 71 to reach the position C. The holding body 45 rotates about the end 71 and reaches the position D.

  Therefore, a driving device is not required for each movement of tilt movement, horizontal movement, and rotational movement, the structure can be simplified, and cost can be reduced. In addition, since the number of driving devices can be reduced to one, the weight of the moving part can be reduced, and thus a moving device with high speed and good responsiveness can be provided.

  Further, since the component holder 45 is supported by engaging the first roller 51 and the second roller 52 with the first cam groove 55 and the second cam groove 61, Most of the weight can be supported by the first cam groove 55 and the second cam groove 61. Therefore, the moving weight can be reduced, and a moving device with high speed, good response, and low impact can be provided.

  In the above-described embodiment, the component holder 45 is configured to pass between the pair of cam plates 53. However, the present invention is not limited to this, and only on one side of the component holder 45. A cam plate may be disposed, or the component holder may be constituted by a pair of opposing plates, and the cam plate may be disposed between the pair of plates.

  Moreover, in the said embodiment, although the circular arc part 69 is provided in the 2nd cam groove 61, it does not need to restrict to this and may be provided in the 1st cam groove.

The schematic front view which shows the components conveying apparatus which is embodiment of this invention. FIG. 4 is a side cross-sectional view when the component holder is at a position A. The schematic front view which shows the conventional component conveyance apparatus. The side view when a component holding body exists in the position A.

Explanation of symbols

33 Conveying device body 35 Horizontal driving body 37 Horizontal moving body 39 Elevating rail 40 Vertical movement mechanism 41 Guide member 43 Arm 45 Parts holder 47 Shaft 51 First roller 52 Second roller 55 First cam groove 57 First 1 slope part 63 2nd slope part 61 2nd cam groove 69 Arc part 71 End part

Claims (3)

A transfer device body (33) having a plate-like cam plate (53) ;
A first cam groove (55) provided in the conveying direction on the cam plate (53) ;
A second cam groove (61) provided in the cam plate (53) side by side in a direction along the first cam groove (55);
A part that has a first roller (51) that engages with the first cam groove (55) and a second roller (52) that engages with the second cam groove (61) and holds the part A holding body (45);
Provided on the transport device body (33), the component holder (45) is driven in a direction along the first and second cam grooves (55, 61) with respect to the transport device body (33). A driver (35);
In a parts conveying apparatus having
The first cam groove (55) is connected to the first inclined portion (57) formed to be inclined and the first inclined portion (57), and is formed horizontally in the conveying direction. The second cam groove (61) includes a second inclined portion (63) formed in parallel to the first inclined portion (57), and the second cam groove (61). A second horizontal portion (65) formed in parallel with one horizontal portion (59), and an arc portion (69) extending from an end portion (67) opposite to the second inclined portion (63). Accordingly, the second cam groove (61) is formed longer than the first cam groove (55) by the arc portion (69), and
The driving body (35) is provided with a horizontal moving body (37) driven in the horizontal direction by the driving body (35), and the horizontal moving body (37) is provided with a vertical direction moving mechanism (40). The arm (43) is provided so as to be movable up and down. The component holder (45) is pivotally supported by the shaft (47) on the arm (43), and the shaft (47) It is positioned at the midpoint between the first roller (51) and the second roller (52),
The component holder (45) moves along the first and second cam grooves (55, 61) by horizontally moving the horizontal moving body (37) by driving the driving body (35). And a component transporting device that performs tilting movement, horizontal movement, and rotational movement in an upright state . The arc portion (69) is formed in an arc shape centering on an end portion (71) opposite to the first inclined portion (57) of the first cam groove (55). The component conveying apparatus according to claim 1.   The component holder (45) is weighted by the first cam groove (55) and the second cam groove (61) via the first roller (51) and the second roller (52). The component conveying device according to claim 1, wherein the component conveying device is supported.

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