JPH0351088Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention incorporates a sphere that contacts two points of the conveyed object and an arm with a driving means that pushes the conveyed object into contact with the sphere at the two points in a locator that can move in three axes. The present invention relates to a positioning device for conveyed objects.

Conventionally, when positioning workpieces on a conveyor that is continuously conveyed in order to perform predetermined processing on each workpiece, etc., separate types of gripping mechanisms that grip the workpiece at three points are used at fixed positions on the base. However, this positioning device has the disadvantage that it is useless for new positioning operations for workpieces of different shapes, and thus lacks so-called versatility.

The present invention was devised to eliminate the drawbacks of the conventional positioning devices described above, and includes a locator supported by a mechanism provided on a base that is adjustable in movement in three axes, and a sphere in contact with the conveyed object and a driving means. The present invention provides a general-purpose positioning device that is equipped with an attached arm, and is capable of pushing the conveyed object toward the sphere side by driving the arm so that the conveyed object can be held between two points on the sphere and the arm. A large number of devices are installed for positioning objects, but depending on the specifications, the device of the present invention may be installed as one positioning device in combination with other types of positioning devices.

Hereinafter, the present invention will be explained based on an embodiment shown in the drawings.

FIG. 1 shows a positioning device with an operation controller, where 1 is a 3-axis movement operation panel of the positioning device, 2 is the controller, 3 is a positioning device,
X, Y, and Z are the respective codes of the 3-axis directions, 4 is the base, 5 is the 3-axis moving mechanism, 5 _X is the X-direction worm shaft with a motor in the mechanism, and 5 _Y is the Y-direction worm shaft with the same motor. , 5 _Z is a Z-direction worm shaft with the same motor, 6 is a locator, 7 is a sphere, 8 is an arm, and 9 is a cylinder as a power source for the arm.

FIG. 2 is an explanatory diagram of a state in which the conveyed object 10 is held between the sphere 7 and the arm 8 of the locator, and the conveyed object 10 is moved toward the sphere 7 by the power (cylinder 9) operated arm 8. It is pushed in and is in contact with the sphere 7 at those two points. Reference numeral 8a is a buffer member made of rubber or the like, which relieves the impact of the arm action on the conveyed object.

Next, the effects of the positioning device having the above configuration will be explained.

A positioning device 3 is placed on the floor of the conveyed object processing setting (position) provided on the conveyor in order to perform the same processing on conveyed objects such as workpieces that are conveyed one after another.
will be deployed. The positioning device has its locator 6
The conveyed object 10 with the sphere 7 at a predetermined position for positioning
The position of the locator is adjusted by the three-axis moving mechanism 5 so that the locator touches the locator at two points (see FIG. 2). Now, the conveyance of the conveyed object for processing is started, the conveyed object 10 is placed on the positioning device 3 whose position has been adjusted, and the arm is activated to push the conveyed object toward the sphere 7 side, and the conveyed object is and the sphere come into contact at two points as shown in Figure 2. Assuming that the direction of the straight line connecting the two points mentioned above is assumed to be the Y axis, and the direction of the axis perpendicular to this is assumed to be the X' axis, the conveyed object that is in contact with the sphere at two points is Although movement in the Y′-axis direction is suppressed,
Movement in the X′ axis direction is not inhibited.
That is, this positioning device performs two-direction restraint positioning of the Z-axis and Y' axis, and the omnidirectional restraint positioning of the conveyed object is performed by another positioning device installed in parallel. This requires restraint in the X′-axis direction.

Therefore, the above-mentioned positioning device is limited to the function of determining the position of the transported object at a predetermined position, and a separately provided fixing means is used to securely hold the transported object in that position. After fixing the object to be transported, if necessary, the positioning device is opened and the object to be transported is processed.

As described above, the idea is to install a locator that holds the transported object for positioning on a base so that its movement can be adjusted in three axes, and to make contact between the locator and the transported object at two points on the sphere. Therefore, the range in which the device can be newly adjusted and set to position a lot of objects to be processed with different shapes is significantly wider than that of conventional systems, and it has valuable versatility for positioning objects of various shapes. It is equipped with the following.

[Brief explanation of the drawing]

The drawing shows one embodiment of the present invention.
The figure is a perspective view of the positioning device with an operation controller, and FIG. 2 is an explanatory diagram of a state in which the locator holds an object to be transported. 3... Positioning device, 4... Base, 5... 3-axis movement mechanism, 6... Locator, 7... Sphere, 8...
Arm, 9... Cylinder (driving means), 10...
conveyance.

Claims (1)

[Scope of utility model registration request] A locator supported by a mechanism capable of adjusting movement in three axial directions on a base includes a sphere that contacts two points of the conveyed object, and an arm with a driving means that pushes the conveyed object into contact with the sphere at the two points. A conveyed object positioning device characterized by comprising: