JPH0144241Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a gripping device for a rotating shaft assembly used for gripping and processing a rotating shaft assembly that supports a rotating member rotatably relative to a support member.

Conventionally, a gripping device used to grip and process a rotary shaft assembly component that supports a rotary member rotatably relative to a support member in its assembled state fixes the support member with a chuck and attaches it to a rotary drive device. Therefore, a pin is provided on the rotating shaft, and the pin is inserted into a part of the rotating member of the part, and the rotating member is rotated while processing is performed. however,
In such conventional gripping devices for rotating shaft assembly components, there is play in the engagement between the pin and the rotating member of the component, causing slight vibrations during machining, making it difficult to accurately process the rotating member. There was a problem that I was told could not be done.

This invention was made in view of such conventional problems, and consists of a chuck that fixes a support member of a rotating shaft assembly component and a rotating shaft that elastically presses against a rotating member of the component to rotate the rotating member. It is an object of the present invention to provide a gripping device for a rotating shaft assembly component, which is equipped with a jig and is capable of producing a wheel that stably rotates a rotating member without causing vibration.

The embodiment shown in the figures will be explained in detail below. The drawing shows an entire embodiment of this invention, in which a chuck 5 fixing a support member 3 of a rotating shaft assembly part 1 and a chuck 5 rotated by a rotation drive device 7 and pressed against a rotating member 9 of said part 1. Rotating jig 1
Consists of 1.

The rotary shaft assembly component 1 is constructed by assembling a rotary member 9 to a support member 3 such that the rotary member 9 is rotatably supported.

The chuck 5 is a movable chuck 19 and a frame 13 that are screwed together with a threaded portion 17a of an output shaft 17 of a motor 15 attached to a frame 13 to move up and down.
The fixed side chuck 21 is fixed to the fixed side chuck 21. Gripping claws 23 and 25 are attached to the movable chuck 19 and the fixed chuck 21, respectively, so that they can be replaced by attachment means such as screws.

The movable chuck 19 is guided by a lifting guide member 27 to stop its rotation. Furthermore, in order to elastically support the support member 3 of the component 1 from the back side, a presser pin 31 biased by a spring 29 is provided on the rotary shaft drive device 7 side.

The rotary drive device 7 includes a motor 33 and a belt 35.
The motor 33 and the collect chuck 37 are interlocked and connected by the motor 33 and the collect chuck 37
are each attached to a movable base 39. The movable base 39 is slidably supported by a slide block 43 with respect to a fixed base 41.

The rotating jig 11 includes a rotating body 45 and this rotating body 4.
5, and a buffer body 49 attached to the tip of the slide body 47. The rotating body 45 includes a shank portion 51 and a housing portion 53 provided at the tip thereof, and further includes a screw 55.
It has a central shaft 57 fixed by. The sliding body 47 is provided in the housing portion 53 of the rotating body 45 and is composed of a main body 59 and a thrust bearing 63 fixed to the main body 59 with a screw 61. It is spline connected to the center shaft 57 of. Furthermore, a cap 65 is attached to the tip of the housing portion 53 of the rotating body 45. The cap 65 receives the push of the main body 59 to the front by a spring 67 as a bullet body provided between the main body 59 and the housing portion 53. The buffer body 49 is made of an elastic material such as urethane rubber, and is attached to the front end surface of the main body 59 of the sliding body 47.

The operation of the gripping device for rotating shaft assembly components having the above configuration will be described next. In this gripping device, the support member 3 of the rotating shaft assembly part 1 is first fixed by the chuck 5. This fixing is carried out by inserting the component 1 between the movable chuck 19 and the fixed chuck 21 while the movable chuck 19 is raised by the motor 15, and then lowering the movable chuck 19 by driving the motor 15, thereby locking both chucks 19. , 21 respectively gripping claws 23, 25
The support member 3 of the component 1 is gripped between them. If the size of part 1 changes here, gripping claw 2
3 and 25 can be replaced with ones that match the dimensions of the parts.

After the support member 3 of the component 1 is fixed by the chuck 5, the rotation member 9 of the component 1 is now fixed by the rotating jig 11. When fixing using the rotating jig 11, first, the chuck 5 is
After completing the fixation of the support member 3 of the component 1, the movable base 39 is moved forward by sliding on the slide block 43, and the buffer body 49 of the rotating jig 11 is applied to the end surface of the rotating member 9 of the component 1. cormorant. With this operation, the sliding body 47 is
imparts an elastic force to the buffer body 49, causing it to elastically abut against the end face of the rotating member 9 of the component 1. Therefore, a frictional connection is established at this contact surface.

After the chuck 5 and the rotating jig 11 have completed fixing the support member 3 of the rotating shaft assembly part 1 and supporting the rotating member 9, the rotating member 9 is processed by the cutting tool 69.

When it is desired to rotate the rotating member 9 of the component 1, the motor 33 of the rotation drive device 7 is driven to rotate the rotating jig 11 held by the collection chuck 37. This rotation of the rotating jig 11 rotates the rotating member 9 of the component 1 that is frictionally connected to the buffer body 49. In this way, the rotating member 9 of the component 1 can be accurately machined by the cutting tool 69.

As can be understood from the above description of the embodiments, this invention includes a chuck 5 for fixing the support member 3 on the rotating shaft assembly part 1, and a rotating member 9 on the rotating shaft assembly part 1.
A housing portion 53 formed in a shank portion 51 of the rotating jig 11 is a gripping device for a rotating shaft assembly component, comprising a rotating jig 11 that abuts an end face of the rotary jig 11 and transmits rotation to the rotating member 9 by friction. A sliding body 47 housed inside is provided so as to be able to reciprocate in a direction parallel to the axis of the shank part 51 and is biased in a direction protruding from the housing part 53, so that the sliding body 47 protrudes from the housing part 53. A shock absorber 49 is provided at this portion so as to be able to come into contact with the end face of the rotating member 9 in the rotating shaft assembly part 1.

As is clear from the above configuration, in the present invention, the sliding body 47 for contacting the end surface of the rotating member 9 in the rotating shaft assembly part 1 and transmitting rotation.
is housed inside a housing portion 53 formed in the shank portion 51 of the rotating jig 11. In other words, the sliding part of the sliding body 47 is protected by the housing part 3, and the sliding part is not obstructed by chips generated during machining, and can always slide smoothly. It is something that can be moved. Also,
With the above configuration, the conventional problems mentioned above can also be solved.

[Brief explanation of the drawing]

The drawing shows a front sectional view of one embodiment of this invention. 1...Rotating shaft assembly parts, 3...Supporting members, 5
...Chuck, 7...Rotary drive device, 9...Rotating member, 11...Rotating jig, 37...Collection chuck, 45...Rotating body, 47...Sliding body, 49...
...Buffer, 63...Thrust bearing, 65...
...cap, 67...spring.

Claims (1)

[Scope of utility model registration request] The rotary jig 11 includes a chuck 5 for fixing the support member 3 of the rotating shaft assembly part 1, and a rotating jig 11 that comes into contact with the end face of the rotating member 9 of the rotating shaft assembly part 1 and transmits rotation to the rotating member 9 by friction. As a gripping device for rotating shaft assembly parts,
A sliding body 47 installed inside the housing part 53 formed in the shank part 51 of the rotating jig 11.
is provided so as to be able to reciprocate in a direction parallel to the axis of the shank portion 51 and to be biased in a direction protruding from the housing portion 53, and the rotating shaft is provided at a portion where the sliding body 47 protrudes from the housing portion 53. A gripping device for a rotating shaft assembly component, characterized in that a shock absorber 49 is provided that can freely come into contact with the end face of the rotating member 9 in the assembly component 1.