JPH0798313B2 - Deadman hand switch - Google Patents

Description

TECHNICAL FIELD The present invention relates to an improvement of a deadman hand switch used when operating an industrial robot such as a transfer robot.

[Conventional technology]

Generally, a teaching pendant is used to operate an industrial robot.However, this teaching pendant is equipped with a deadman hand switch because it cannot ensure the safety of the operator from an error or sudden start of the industrial robot. There is. Here, the deadman hand switch is an operator who operates the teaching box, and when an unexpected situation occurs and the operator cannot operate, the operator opens the industrial robot to stop the industrial robot. A switch that ensures the safety of the operator.

FIG. 3 shows a conventional deadman hand switch. In the figure, (1) is a teaching box used for operating an industrial robot (not shown), and a teaching box having a large number of operation keys on its surface. On the side of the box (1), there is provided a slide type effective switch (2) for validating the operation of the teaching box (1). (3) is a push-type deadman hand switch provided on the back surface of the teaching box (1). This deadman hand switch (3) allows the industrial robot to start when pressed and emergency stop the industrial robot when opened. Run the function to let. However, (4) is one hand (the left hand in the case of a right-handed person) of the operator who holds the teaching box (1).

Next, the operation method will be described. First, while grasping the teaching box (1) with one hand (4),
The deadman hand switch (3) is pushed with the four fingers of the grasped hand (4) to maintain the state as it is. Then, after that, the effective switch (2) is activated to activate the operation of the teaching box (1), and the operation of the industrial robot is started with the other hand. After that, the industrial robot is operated using the teaching box (1). If an unexpected situation occurs during the operation and the operation becomes impossible, the four fingers are used to move the deadman hand switch (3). ). When the four fingers are released, the industrial robot stops in an emergency and the operator's safety is ensured.

[Problems to be Solved by the Invention]

The conventional dead man hand switch is configured as described above, and when operating the industrial robot for a long time, the operator grasps the teaching box (1) with one hand and the fingers of the grasped hand (4). Since I had to continue to press the deadman hand switch (3), a great burden was placed on the operator's hand (4), and the operator could not bear the pain.

The present invention has been made in view of the above points, and an object of the present invention is to provide a deadman hand switch that can significantly improve operability.

[Means for Solving the Problems]

In order to achieve the above-mentioned object in the present invention, a teaching box used for operating an industrial robot or the like,
It is characterized in that a dead man hand switch for allowing the start of the industrial robot when gripping and for emergency stopping the industrial robot when opened is connected via a cable.

[Action]

According to the present invention, a teaching box used for operating an industrial robot or the like is provided with a deadman hand switch that allows activation of the industrial robot when gripped and emergency stop of the industrial robot when opened via a cable. Since the connection is made, the deadman hand switch can be held by the side of the person who hits the operation key, and can be operated without feeling any pain.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to one embodiment shown in FIGS. 1 and 2. In the drawings, (1) is a teaching box used for operating an industrial robot (not shown). On the side of the teaching box (1) provided with the operation keys of the above, a slide type effective switch (2) for validating the operation of the teaching box (1) is provided.
Is provided. (3) is a deadman hand switch according to the present invention. This substantially staple-shaped deadman hand switch (3) allows the industrial robot to be activated when held in the direction of the arrow in FIG. Performs an emergency stop function for industrial robots. (4) is one hand of the operator who holds the teaching box (1) (left hand in the case of a right-handed person), and (5) is connected to the teaching box (1) and dead man hand switch (3). A flexible cable, (6) is the other hand (right hand in the case of a right-handed person) of the operator holding the deadman hand switch (3), and (7) is the other hand (6). The thumb (8) is the index finger of the other hand (6), and the operation key is tapped by the index finger (8) and the thumb (7).

Next, the operation method will be described, but for convenience, the case of a right-handed person will be described.

First, as shown in FIG. 1, the teaching box (1) is grasped by the left hand (4), and the dead man hand switch (3) is lightly grasped by the right hand (6) in the arrow direction to maintain the state. At this time, as shown in FIG. 2, the dead man hand switch (3) is held by three fingers other than the thumb (7) and the index finger (8), and the thumb (7) and the index finger (8) are allowed to play. There is a need. Then, slide the enable switch (2) from OFF to ON to enable the operation of the teaching box (1), and tap the operation key with the thumb (7) and index finger (8) of the right hand (6) To start the operation robot.

However, although the industrial robot is operated using the teaching box (1), if an unexpected situation occurs during the operation and the operation cannot be performed, the dead man hand is loosened by loosening the three fingers. Open the switch (3). Then,
The industrial robot is stopped in an emergency to ensure operator safety.

As described above, according to the present invention, since the other hand (6) for operating the teaching box (1) is responsible for operating the deadman hand switch (3), the burden on the operation is significantly increased. It is possible to reduce the number, and it is expected that the operability will be significantly improved.

〔The invention's effect〕

As described above, according to the present invention, a teaching box used for operating an industrial robot or the like is provided with a deadman hand switch that allows the industrial robot to be activated when gripped and which is used to emergency stop the industrial robot when opened, Since the connection is made via the cable, it is possible to provide the deadman hand switch which can remarkably improve the operability.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of a deadman hand switch according to the present invention, FIG. 2 is an explanatory diagram showing a state in which the dead man hand switch according to the present invention is gripped and operated, and FIG. 3 is a conventional dead man hand switch. FIG. In the figure, (1) is a teaching box, (3) is a deadman hand switch, and (5) is a cable. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A teaching box used for operating an industrial robot or the like is connected via a cable to a deadman hand switch for permitting the industrial robot to start when gripped and for stopping the industrial robot in an emergency when opened. Deadman hand switch characterized by doing.