JPH0556826U - Hanger positioning device for suspended transfer device - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To provide a device for determining the stop positions in the X, Y, and Z-axis directions of a hanger of a suspended transfer device at substantially the same time. A hanger positioning device includes a pair of positioning shafts 21 and 22 having tapered tip ends and a pair of positioning recesses 51 and 52 that engage with the pair of positioning shafts, and is used as a hanger H in a suspended state. It is provided between a hanger and a fixing member (supporting beam) B of a hanging conveyance device which carries and conveys conveyed articles. By sandwiching one of the pair of positioning shafts and the pair of positioning recesses from the other in the vertical direction, the position of the hanger in the vertical direction (Z-axis direction) is determined. Further, since the tip of the positioning shaft is tapered, the position in the width direction (X axis direction) of the hanger and the position in the moving direction (Y axis direction) of the hanger are determined by this tapered portion.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a hanger positioning device for determining the stopping positions of hangers of a suspending and conveying device in the X, Y, and Z axis directions substantially at the same time.

[0002]

[Prior Art]

 Conventionally, a suspended transfer device (not shown) has a hanger in a suspended state. For example, when it is used in an automobile assembly line, the vehicle body (conveyed object) of an automobile is loaded on the hanger. It has become. The hanger is positioned by a hanger positioning device (not shown) installed on the traveling path of the suspended transfer device so that the vehicle body on the hanger can be processed accurately when the suspended transfer device stops. It is supposed to be done. This hanger positioning device supports a pair of rollers installed on both sides of the hanger in the width direction from below, and positions the hanger in the up-down direction (Z-axis direction) and in the hanger width direction (X-axis direction). The pair of rails that determine the position of the hanger and the projecting piece that protrudes in the width direction of the hanger are sandwiched from the direction parallel to the traveling direction of the suspension conveyance device, and the pair of rails that determine the position of the hanger in the moving direction (Y-axis direction) are It is composed of a sandwiching piece.

[0003]

[Problems to be solved by the device]

 However, such a hanger positioning device has a problem that the rail laying work is troublesome because the position of the hanger may be misaligned unless the pair of rails are laid correctly. Moreover, since the pair of rails supports the hanger on which the goods are loaded, there is a problem that the structure for supporting the rails must be a strong structure that can bear the weight of the goods and the hanger.

[0004]

[Means for Solving the Problems]

 The present invention is provided between the above-mentioned hanger and a fixing member of a suspending and conveying device for carrying conveyed articles on a hanger in a suspended state, and a pair of positioning shafts having a tapered tip, and a pair of the pair of positioning shafts. A device that has a pair of positioning recesses that engage with a positioning shaft, and one of the pair of positioning shafts and the pair of positioning recesses sandwiches the other from above and below to determine the stop position of the hanger. The above has solved the above-mentioned problems.

[0005]

[Action]

 It is assumed that the pair of positioning shafts moves (elevates) in the vertical direction. When the suspending and conveying apparatus stops, each positioning shaft of the pair of positioning shafts descends or rises and engages with the facing positioning recess. As a result, the pair of positioning shafts sandwich the pair of positioning recesses from above and below and determine the position of the hanger in the up and down direction (Z-axis direction). Further, since the tip of the positioning shaft is tapered, the position of the width direction (X axis direction) of the hanger and the position of the hanger moving direction (Y axis direction) are determined by this tapered portion. Can be decided at the same time.

[0006]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. The hanger positioning device 10 is a device that determines the stopping positions of the hangers H of the suspension conveyance device C in the X, Y, and Z directions at substantially the same time. The suspension conveyance device 10 (see FIG. 1) is, for example, a kind of carrier that carries a vehicle body (conveyance) W of an automobile on a hanger H in a suspended state and travels in an automobile assembly factory. The hanger H is rotatably provided on the frame F of the hanging conveyance device 10 so as to be rotated by the rotation drive mechanism D. In the description, the width direction of the hanger H (horizontal direction in FIG. 1) is the X axis, the traveling direction of the hanging conveyance device C (front and back direction of the paper surface in FIG. 1) is the Y axis, and the hanger positioning device 10 is in the vertical direction. The direction or the ascending / descending direction (vertical direction in FIG. 1) is the Z axis.

The hanger positioning device 10 (see FIG. 1) includes a holding mechanism 11 having a pair of positioning shafts 21 and 22, and a pair of positioning recesses 51 and 52. The nipping mechanism 11 (see FIG. 1) is provided on a support beam (fixing member) B that suspends the traveling rail R of the hanging conveyance device C, and a pair of positioning shafts 21 and 22 positions the pair of positioning shafts 21 and 22. This is a mechanism for sandwiching the recesses 51 and 52 from above and below.

The pair of positioning shafts 21 and 22 are adapted to be moved toward and away from each other by an air cylinder 23 (see FIG. 2). The tips 211 and 221 of each positioning shaft are conical (tapered) and face each other. The upper positioning shaft 21 is provided on a connecting plate 26 that connects a pair of upper moving bodies 24 and 25 (see FIGS. 2 and 4), and the lower positioning shaft 22 connects a pair of lower moving bodies 27 and 28. Is provided on the connecting plate 29. One moving body 24, 27 is provided on one guide shaft 31 of the pair of guide shafts 31, 32, and the other moving body 25, 28 is provided on the other guide shaft 32 so as to be vertically movable.

The air cylinder 23 (see FIG. 4) is provided across one upper moving body 24 and one lower moving body 27, and the piston 231 is connected to the upper moving body 24 via the arm 33. The cylinder 232 is connected to the lower moving body 27 via the arm 34. Since the air cylinder 23 is provided so as to straddle the upper moving body 24 and the lower moving body 27, a rack and pinion gear mechanism or the like is used as a mechanism for moving up and down the positioning shafts 21 and 22. The hanger positioning device 10 has a simple structure because it does not need to be used.

The lowering range of the upper positioning shaft 21 is limited by a lower limit stopper 35 (see FIG. 4) with which the arm 33 contacts. The lower positioning shaft 22 is limited in its ascending range and descending range by an upper limit stopper 36 (see FIG. 4) with which the arm 34 abuts and a lower limit stopper 37 with which a lower moving body 28 (see FIG. 5) abuts. ing. The position of each stopper 35, 36, 37 can be adjusted.

The pair of positioning recesses 51, 52 are provided at the tip of a projecting piece 53 projecting on the side surface of the hanger H in the X-axis direction. The positioning recesses 51 and 52 are provided at positions facing the positioning shafts 21 and 22 and are conical recesses so that the tips 211 and 221 of the positioning shafts can be received.

Next, the operation will be described. The suspension conveyance device C travels on the traveling rail R in the Y-axis direction, stops in the vehicle body assembly process, and tilts the hanger H from the solid line position to the imaginary line position to facilitate the assembly work of the vehicle body W. .. In the process in which the position of the hanger H must be accurately determined, the hanger positioning device 10 positions the hanger H.

The pair of positioning shafts 21 and 22 of the hanger positioning device 10 is lowered and raised by the air cylinder 23 to sandwich the pair of positioning recesses 51 and 52 from above and below. At this time, the upper positioning shaft 21 is operated (lowered) prior to the lower positioning shaft 22, and after the leading end 211 is inserted and engaged with the facing positioning recess 51, the arm 33 moves the lower limit stopper 35. Stop by hitting. After that, the lower positioning shaft 22 is lifted, and the tip 221 is inserted into and engaged with the facing positioning recess 52.

As a result, the tips 211 and 221 of the positioning shafts 21 and 22 are inserted into and engaged with the positioning recesses 51 and 52 in the vertical direction to position the hanger H in the Z-axis direction. Further, since the tips 211 and 221 of the positioning shafts 21 and 22 and the positioning recesses 51 and 52 are conical with each other, the engagement causes the hanger H to move in the X-axis direction and the Y-axis direction. The positioning is also performed almost simultaneously by the tips 211 and 221 of the positioning shafts 21 and 22.

Although the hanger described above is designed to be tilted, the hanger positioning device of the present invention can position the hanger (not shown) simply suspended by the suspension transfer device. Can be done. Further, in the above embodiments, the arm is provided with the positioning shaft and the projecting piece is provided with the positioning recess, but the arm may be provided with the positioning recess and the projecting piece may be provided with the positioning shaft. In this case, the positioning recess moves up and down.

[0016]

[Effect of the device]

 The hanger positioning device of the present invention has the following effects. (1) The hanger can be positioned without the conventionally required rails, so the structure can be simplified. (2) The need for rails makes it possible to effectively use the space around the suspended transportation device. (3) Since the positions of the hanger in the X, Y, and Z axis directions can be determined substantially at the same time, the hanger can be positioned in a short time.

[Brief description of drawings]

FIG. 1 is a front view of a suspension conveyance device equipped with a hanger positioning device of the present invention.

FIG. 2 is a front view of the hanger positioning device of the present invention.

FIG. 3 is a plan view of FIG. 2 with a partial cross section.

4 is a view taken along arrow 4-4 in FIG.

5 is a view on arrow 5-5 in FIG. 3. FIG.

[Explanation of symbols]

 H Hanger B Support beam (fixing member) 10 Hanger positioning device 21,22 Positioning shaft 211,221 Tip of positioning shaft 51,52 Positioning recess

Claims (1)

[Scope of utility model registration request] 1. A pair of positioning shafts, which are provided between the hanger and a fixing member of a suspension conveyance device that travels by loading conveyed articles on a hanger in a suspended state, and a pair of positioning shafts having tapered ends, and the pair of positioning shafts. It has a pair of positioning recesses that engage with the positioning shaft, and one of the pair of positioning shafts and the pair of positioning recesses sandwiches the other from the vertical direction to determine the stop position of the hanger. , Hanger positioning device for suspended transportation device.