JPH0512091U - Work positioning suction device - Google Patents

Abstract

(57) [Summary] [Objective] The present invention correctly positions and sucks a work having a notch or a hole by a suction tool attached to the tip of a vertically moving work shaft of a robot or an automatic machine. The purpose is to. [Construction] In a work suction device such as a robot or an automatic machine, which has a suction portion at the tip of a work shaft that automatically moves up and down, and which sucks a work having a hole or a notch, An outer peripheral pin that abuts the outer periphery and a fitting pin that fits into the hole or notch of the work are arranged to position and adsorb the work.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a work positioning and suction device having a suction portion for positioning and suctioning a work at the tip of a work shaft that automatically moves up and down, such as a robot or an automatic machine.

[0002]

[Prior Art]

 In the case of so-called insert molding, in which a work A having a notch B as shown in FIG. 4 is gripped by suction and the work is inserted into a mold for molding, a conventional mold is used. A work magazine and a robot that conveys the work stored in the work magazine into the mold are installed near the molding machine in which the robot is placed. An adsorption device for simply adsorbing and holding the work was attached.

Next, the operation will be described. First, confirm the direction of the notch B of the work A, front and back, and store the work in the work magazine. Next, when the robot is operated, the suction device fixed to the work shaft adsorbs the work A, takes it out from the work magazine and conveys it into the mold. When the transfer to the mold is completed, the robot retracts, the mold closes, and insert molding starts.

[0004]

[Problems to be solved by the device]

 By the way, in the above-mentioned prior art, the notch B of the work A and the front and back are checked in advance to store the work in the work magazine. However, the notch B is not aligned, In some cases, the front and back were reversed and they were stored in a work magazine.

If such an incomplete work A is adsorbed and conveyed into the mold, if the work is conveyed to a predetermined position of the mold, when the mold is closed, the closing pressure is applied. Therefore, there was a problem that the mold was damaged.

[0006]

[Means for Solving the Problems]

 The present invention has an object to solve the above problems, and has a suction part at the tip of a work shaft that automatically moves up and down, such as a robot or an automatic machine, and sucks a work having a hole or a cutout part. In the work suction device, an outer peripheral pin that comes into contact with the outer circumference of the work and a fitting pin that fits into the hole or notch of the work are arranged to position and work the work. It is characterized by.

[0007]

【Example】

 A base 2 of the work suction device 1 is detachably fixed to the tip of a work shaft of a robot (not shown). A substrate 4 is fixed to the base 2 via a spacer-3. Then, a suction tool 5 is attached to the substrate 4, and a suction pad 6 is attached to the lower end of the suction tool 5.

Further, a plate 7 is fixed to the substrate 4 with bolts 8 or the like. Then, on the plate 7, three outer peripheral pins 9 each having a convex portion 9b formed at a tip set slightly longer than the suction pad 6 are arranged along the outer peripheral surface of the work A, Further, a fitting pin 10 which is fitted into the notch B of the work A is provided.

The outer peripheral pin 9 and the fitting pin 10 have flange portions 9 a and 10 a formed on their heads, and the flange portions 9 a and 10 a are pressed against each other between the substrate 4 and the plate 7. , Each pin is prevented from swinging (fixed). Reference numeral 11 is a pipe for communicating with the suction pad 6 and a sky ejector (not shown).

Next, the operation will be described. The robot operates to adsorb work A placed in the work magazine. At this time, when the outer peripheral pin 9 is fitted into the outer peripheral surface of the work A and the fitting pin 10 is fitted into the notch B, the work A is sucked and gripped by the suction tool 5. Next, the robot places the work A in a mold (not shown), and insert molding is started.

Next, a case where the work A is imperfectly placed in the work magazine will be described. When the robot operates and tries to grip the work A by suction, the convex portion 9a of the outer peripheral pin 9 and the tip of the fitting pin 10 come into contact with the upper surface of the work A, and therefore the work A and the suction pad. A gap is created between the work 6 and the work 6, and the work A is not adsorbed. Therefore, since the work A whose robot is incomplete is not conveyed into the mold, the mold is not damaged.

By attaching a vacuum pressure switch to the suction tool, the signal can be transmitted to the robot controller to stop the robot. In addition, it is possible to check the front and back sides of the work with the fitting pin 10 even for a work in which holes and the like are formed symmetrically.

[0013]

[Effect of the device]

 The present invention relates to a work suction device, such as a robot or an automatic machine, which has a suction portion at the tip of a work shaft that moves up and down automatically and which sucks a work having a hole or a cutout portion. An outer peripheral pin that abuts the outer periphery of the work and a fitting pin that fits into the hole or notch of the work are provided to position and adsorb the work. Even if the work is stored, it does not adsorb the incomplete work, and it will not only damage the mold, but also damage the work and the assembly even if it is used for assembly. There is no.

[Brief description of drawings]

FIG. 1 is a partially cut front view of an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view of FIG.

FIG. 4 is a plan view of an example of a work.

[Explanation of symbols]

 1 Work suction device 2 Base part 3 Spacer 4 Substrate 5 Suction tool 6 Suction pad 9 Outer peripheral pin 10 Fitting pin A Work B B Cutout

Claims (1)

[Scope of utility model registration request] 1. A work suction device, such as a robot or an automatic machine, which has a suction portion at the tip of a work shaft which moves up and down automatically and which sucks a work having a hole or a cutout portion. -A work positioning and suction device for locating and sucking a work by arranging an outer peripheral pin that comes into contact with the outer periphery of the work and a fitting pin that fits in a hole or notch of the work.