JP2019141977A - Angular stage changer - Google Patents

Abstract

To perform angular stage changing control so that a work-piece has a desired tilt angle.SOLUTION: An angular stage changer comprises: a jig part base 11; a bush 21 which has plural rotating mechanisms 21b to 21e, and which serves as a rotary shaft for rotating the jig part base 11; two lifting cylinders 13a, 13b for lifting the jig part base 11; and two ball joints 14a, 14b which are respectively located at tips of two lifting cylinders 13a, 13b, and which serve as a joint for the lifting cylinders 13a, 13b and the jig part base 11. The rotating mechanisms 21b to 21e of the bush 21 are located on an extension line which connects a center of one ball joint 14a and a center of the rotary shaft and on an extension line which connects a center of the other ball joint 14b and the center of the rotary shaft, in a view point from a lifting direction, and control operation of two lifting cylinders 13a, 13b and operation of the rotating mechanisms 21b to 21e of the bush 21, thereby tilting the jig part base 11.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an angle changing device for a single-screw clamping machine.

  Conventionally, there is JP, 2006-102878, A as a technique of such a field. In this publication, there is described a work support device that can turn a work in any direction without limitation by moving up and down, left and right, back and forth, and rotating, and that can finely adjust the position.

JP 2006-102878 A

However, the above-described workpiece support device is complicated by using a plurality of slide plates and air tubes. More specifically, it is possible to tilt the workpiece in the desired direction using the elasticity of the air tube, change the height by the cylinder, and change the position in the front and rear, left and right directions by the slide plate, Although the floating mechanism is configured by utilizing the rotation by the central axis, there is a problem that the cost is high because the apparatus is complicated.
The present invention provides an angle change device that performs angle change control so that a workpiece has a desired angle at low cost.

The angle changing device according to the present invention includes a jig part base, a plurality of rotating mechanisms, a bush serving as a rotation shaft for rotating the jig part base, and an operation in the ascending / descending direction. Two elevating cylinders for raising and lowering the part base, and two ball joints arranged at the tips of the two elevating cylinders and serving as a joint between the two elevating cylinders and the jig part base, The rotation mechanism of the bush includes an extension line connecting the center of one of the ball joints and the center of the rotation shaft, and the center of the other ball joint and the It is arranged on an extension line connecting the center of the rotation axis.
Thereby, two cylinders can be operated by using the jig base as a three-point support, and the angle change can be executed.

  Thereby, angle change control can be performed at low cost so that the workpiece has a desired inclination angle.

It is a figure which shows the outline of a 1 axis | shaft clamping machine. It is a figure which shows the outline of an angle setup apparatus. It is a bottom view of an angle change device. It is a front view of the state which inclined the jig part base. It is a side view of the state which inclined the jig part base.

  Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the single-axis tightening machine 1 is provided with an angle changing device 2. For example, in the single-axis tightening machine 1, the angle changing device 2 is provided at the lower portion, and the workpiece is disposed above the angle changing device 2.

  As shown in FIG. 2, the angle changing device 2 includes a jig part base 11, a jig part 12 connected to the upper part of the jig part base 11, and 2 provided at the lower part of the jig part base 11. Ball joints 14a and 14b (see FIG. 4), bushes 21, and legs provided at the tips of the elevating cylinders 13a and 13b and elevating cylinders 13a and 13b and used as joints with the jig base 11. Unit 22 (see FIG. 3).

  As shown in FIG. 2, the jig part base 11 has a flat plate shape. A plurality of blocks or the like for connecting the jig part 12 may be arranged on the jig part base 11. FIG. 3 shows an example in which the jig base 11 is represented from a viewpoint from below, and the jig base 11 has a substantially isosceles trapezoidal shape. The jig part base 11 is connected to a first lifting cylinder 13a and a second lifting cylinder 13b in the vicinity of both ends of the long side among the parallel sides. In addition, the long side provided in parallel with the jig part base 11 is demonstrated as a front side.

  As shown in FIG. 3, a bush 21 is connected to substantially the center of the lower part of the jig base 11. More specifically, the bush 21 is disposed on the center of the rotation axis when the jig base 11 rotates around the Z axis. The bush 21 is a sliding bearing, and extends from an extension line connecting the central portion 21a disposed on the rotating shaft and the ball joint 14a of the first lifting cylinder 13a from the viewpoint of the lifting direction. Rotating mechanisms 21b, 21c arranged, and rotating mechanisms 21d, 21e arranged so as to extend on an extension line connecting the central portion 21a and the ball joint 14b of the second lifting cylinder 13b.

  Here, the rotation mechanism disposed between the center portion 21a and the first lifting cylinder 13a is the rotation mechanism 21b, and the rotation mechanism disposed on the opposite side of the rotation mechanism 21b across the center portion 21a is the rotation mechanism 21c. And The rotation mechanism disposed between the center portion 21a and the second lifting cylinder 13b is a rotation mechanism 21d, and the rotation mechanism disposed on the opposite side of the rotation mechanism 21d with the center portion 21a interposed therebetween is a rotation mechanism 21e. To do.

  The jig part 12 is a jig fixed on the jig part base 11. For example, the jig part 12 can fix the work by gripping the work (not shown).

  As shown in FIG. 2, the first lifting / lowering cylinder 13 a is a cylinder disposed so as to be connected to the lower surface on the front right side of the jig base 11. For example, the first elevating cylinder 13a is a piston cylinder, and arbitrarily moves up and down when powered by an actuator (not shown).

  The second lifting / lowering cylinder 13 b is a cylinder arranged to be connected to the lower surface on the front left side of the jig base 11. For example, the second elevating cylinder 13b is a piston cylinder, and arbitrarily moves up and down by being powered by an actuator (not shown). The first elevating cylinder 13a and the second elevating cylinder 13b can move up and down independently. Due to the raising / lowering state of the raising / lowering cylinders 13a, 13b, the jig base 11 is tilted because one of the right side and the left side is higher than the other.

  The ball joint 14 a is disposed at the tip of the first lifting cylinder 13 a and serves as a joint between the first lifting cylinder 13 a and the jig base 11. The ball joint 14a is freely rotatable at the tip of the first lifting cylinder 13a.

  The ball joint 14 b is disposed at the tip of the second lifting cylinder 13 b and serves as a joint between the second lifting cylinder 13 b and the jig base 11. The ball joint 14b is freely rotatable at the tip of the second lifting cylinder 13b.

  The upper end of the leg portion 22 is connected to the lower surface on the rear side of the jig base 11. A power source or the like is not connected to the leg portion 22 and the vertical movement is not performed. The jig base 11 is supported at three points by a first lifting cylinder 13a, a second lifting cylinder 13b, and a leg portion 22.

  Next, the operation of the angle changing device 2 will be described. 4 is a front view when the jig base 11 is tilted about the ball joint 14b, and FIG. 5 is a side view of the state where the bush 21 is tilted about the rotation axis thereafter.

  First, the first elevating cylinder 13a is moved up. As a result, the jig base 11 is tilted about the ball joint 14b, and misalignment occurs when the jig base 11 is placed on the lifting cylinders 13a and 13b. To do.

  Here, ball joints 14 a and 14 b are used as joints between the elevating cylinders 13 a and 13 b and the jig base 11. Therefore, the positional deviation in the surface direction of the jig base 11 is adjusted by the rotation of the ball joints 14a and 14b.

  Thereafter, the jig base 11 is tilted about the bush 21 as the rotation axis. Here, the rotation mechanisms 21b and 21c are arranged to extend on an extension line connecting the center portion 21a and the first lifting cylinder 13a, and the rotation mechanisms 21d and 21e are connected to the center portion 21a and the second portion. It arrange | positions so that it may extend on the extension line | wire which connects the cylinder 13b for raising / lowering. Therefore, the jig part base 11 can be tilted in any direction by the operations of the rotating mechanisms 21b, 21c, 21d, and 21e.

  In the above description, the first elevating cylinder 13a is moved up to tilt the jig part base 11, but the second elevating cylinder 13b is moved up to tilt the jig part base 11. Even if there is, it is the same.

  In this way, the jig base 11 is tilted by the operation of the elevating cylinders 13a and 13b. At this time, the positional deviation can be adjusted by the ball joints 14a and 14b. In addition, the jig base 11 can be supported at three points by the two lifting cylinders 13a and 13b and the leg portion 22, and by the rotation mechanisms 21b, 21c, 21d and 21e of the bush 21, The inclination of the jig base 11 can be adjusted.

  Therefore, the jig base 11 can be tilted by controlling the operations of the two lifting cylinders 13a and 13b and the rotation mechanisms 21b, 21c, 21d and 21e of the bush 21.

  Further, it is not necessary to use a power source other than an actuator as a power source for operating the elevating cylinders 13a and 13b. Therefore, the number of actuators can be reduced while maintaining high versatility, and the cost can be reduced.

  Note that the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 1 axis | shaft clamping machine 2 Angle changing device 11 Jig part base 12 Jig part 13a 1st raising / lowering cylinder 13b 2nd raising / lowering cylinder 14a, 14b Ball joint 21 Bush 21a Center part 21b, 21c, 21d, 21e Rotating mechanism

Claims (1)

A jig base,
A bush having a plurality of rotating mechanisms and serving as a rotating shaft for rotating the jig base;
Two raising and lowering cylinders for raising and lowering the jig base by operating in the raising and lowering direction;
Two ball joints that are respectively disposed at the ends of the two lifting cylinders and serve as joints between the two lifting cylinders and the jig base,
The rotation mechanism of the bush includes an extension line connecting the center of one of the ball joints and the center of the rotation shaft, and the center of the other ball joint and the center of the rotation shaft from the viewpoint of the ascending / descending direction. Placed on the extension line connecting
Tilting the jig base by controlling the operation of the two lifting cylinders and the operation of the bushing rotation mechanism;
Angle changer.

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