JPH04109883U - Grips for round parts - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a gripper that can center and grip round parts with different outer diameters. [Structure] With the gripper body 1 open, the pin 4 is brought into contact with the upper part of the round part 7, and the spring 5 is bent. Next, when the gripper body 1 is closed, the arms 3a and 3b having slopes fixed to the movable blocks 2a and 2b come into close contact, forming two slopes under the round part 7. Gripper body 1
When lifted, the round part 7 is centered and gripped by the two slopes and the pin 4 which is pushed by the force of the spring 5.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a gripper for gripping round parts.

0002

[Conventional technology]

In conventional technology, a grip is used that grips the round part with two arms that match the outside diameter of the part. Lippa is well known.

0003

[Problem that the idea aims to solve]

In conventional grippers, the gripping parts of the two arms match the shape of the round part. Therefore, when gripping round parts with different outer diameters, the arm cannot be gripped unless the arm is replaced. The drawback was that it was impossible to

0004

[Means to solve the problem]

This idea solves these problems by making the gripping part of the arm sloped and facing the Grips round parts using the two slopes of the arm and the pin pushed and held by the spring force. It is something to do.

[0005]

[Effect]

According to this invention, the two arms that have sloped grips are formed when they face each other. Placing the round part between the ramp and the spring-loaded actuated pin The pin, which is pressed by the spring force, presses the round part against the two slopes. By doing this, it can be centered, supported at three points on the cross section, and gripped. Also, the pin moves It can handle various round parts with different outer diameters to the extent possible.

[0006]

【Example】

An embodiment of this invention will be described with reference to the drawings. FIG. 1 is a partial sectional view showing an embodiment of this invention, and shows a commercially available pneumatic drive. A pair of arms 3 having slopes on the movable blocks 2a and 2b of the parallel movement gripper 1. a, 3b are fixed, and the pair of apertures at the bottom of the main body of the gripper 1 are fixed. A sleeve 6 is provided between the arms, and the pin is guided by the spring 5. The pin 4 is pressed and held.

[0007] Separated and supplied by a parts feeder or magazine (not shown), and located at the same location When gripping a round part (hereinafter referred to as a workpiece) 7 with the gripper of this invention, first, With the gripper body 1 open, touch the pin 4 to the top of the workpiece 7, and tighten it with appropriate strength. Deflect the spring 5 set to . Next, when the gripper body 1 is driven and closed, it is fixed to the movable blocks 2a and 2b. The tips of the arms 3a and 3b, which have slopes such as Form a slope. Then, when the gripper body 1 is lifted, the workpiece 7 is placed on two slopes. be centered and gripped by the pin 4 which is pushed by the force of the spring 5; become. This facilitates transporting the parts into position.

[0008] The gripper body 1 is operated by a movable block that moves in parallel, as well as by a pneumatically driven rocking block. A gripper or an externally driven gripper may be used. Also, if it is within the movable range of the pin 4 and has a size that engages the slope part of the arm, Workpieces 7 with different outer diameters can also be gripped.

[0009]

[Effect of the idea]

As described above, according to this invention, round parts with different outer diameters can be centered and accurately It can be gripped with the same force as a conventional gripper. Because it is gripped by spring force rather than by the force of a spring, it is less likely to damage precision parts, etc. There are also other effects.

[Brief explanation of drawings]

FIG. 1 is a partial sectional view showing an embodiment of this invention.

[Explanation of symbols]

1 Gripper body 2a, 2b movable block 3a, 3b arm 4 pins 5 spring 6 Sleeve

Claims (1)

[Scope of utility model registration request] [Claim 1] A gripper for gripping a round part,
A pair of movable blocks that open and close by swinging or parallel movement, a pair of arms fixedly mounted opposite to the movable blocks and having a slope on the inside, and provided between the pair of arms at the bottom of the gripper. A gripper for a round part, comprising a sleeve and a pin guided within the sleeve and held by a spring, the gripper being gripped by two slopes of the pair of arms and the pin.