JPS62148147A - Workpiece supporting device of grinder - Google Patents

Abstract

PURPOSE:To contrive to improve processing accuracy by detecting the thickness of a work from its outer diameter and inner diameter and providing a control means for controlling the pressure of an actuator on the basis of its thickness and outer diameter. CONSTITUTION:A roller diameter detecting plate 17, one end of which is mounted on an pressing actuator 6 and the other end of which makes contact with the measuring needle 18a of a measuring section 18, detects the outer diameter of an work W by detecting the diameter of a pressing roller 5. On the other hand, the inner diameter of the work W obtained by measuring the notched position of the work W, etc. and its outer diameter are input into a control means to calculate the thickness of the work W. On the basis of rigidity value calculated from the thickness of this work and its material, a motor 14 is rotated by the specified angle to change the elasticity of a spring 11. Hereby the pressure of the pressing actuator 6 to the pressing roller 5 is controlled and processing accuracy can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a workpiece support device for supporting a workpiece in a grinding machine for grinding m1111 earthworks.

(Conventional technology) Conventionally, grinding I! In A (machine tool), a pressure rotor whose piston part fits into a cylinder body and can move forward and backward;
A workpiece, such as a retaining ring for a miniature bearing, is held by a front plate placed opposite to this pressure roller, and the workpiece is rotated by a workpiece drive 1]-wheel while a grindstone is applied to the inner surface of the workpiece. There are things to be ground (Jitsuma 11r (see Publication No. 59-97839G)). However, in such grinders, when the type of workpiece (rigidity, etc.) changes, the cylinder body and pressure rotor must be replaced. Also, the pressing force number of the Prefushi 121 coater on the workpiece is not structured to vary depending on the type of L1 node, so machining precision is reduced.
It was difficult to gauge the direction of the degree.

(Objective of the invention 1) The present invention has been made in view of the above-mentioned problems of the conventional method. The purpose is to provide a workpiece support device for a disk.

(Structure of the Invention) The present invention is a workpiece support device for an ω1 cutting machine that supports a cylindrical workpiece, and includes a stationary device 1 that contacts the outer periphery of the workpiece and rotates the workpiece. - a pressing roller that is in contact with the outer periphery of the workpiece and is supported by a force that moves 1f; , a press actuator that is capable of adjusting the pressing force of 10, I [+1-R], detects the wall V of the workpiece by the outer diameter and inner diameter of the workpiece, and detects the wall thickness and the above outer diameter. and a pressing force i, II control means for controlling the pressing force of the pressing actuator based on the following.

With this configuration, the pressing force control means controls the pressing force of the pressing actuator based on the wall thickness and outer diameter of the workpiece.
l11tIIl, KonouIII Sale/,: Press IE
7') A pressing force t is applied to the pressing roller, and this pressing roller presses the outer periphery of the workpiece with a pressing horn corresponding to the type of workpiece.

(Embodiment) FIG. 1 is a four-part configuration diagram of a workpiece support device for a grinding machine showing an embodiment of the present invention. Stationary [I-ra 1 is the workpiece W
It is in contact with the outer periphery of the workpiece (1° liquid-added object) and is supported by the casing 2 and installed in a fixed position, and the rotation of the drive motor 3 is transmitted via the belt 4 to rotate the workpiece W. be.

Press O-ra 5 (1) Touch the outer circumference of the nok W
In order to support it so as to be movable so as to press it, its shaft is supported at one end of a pressing actuator 6, and the rotation of a drive motor 7 is transmitted via a belt 8 to drive it into rotation. A support portion 9 that is supported by the casing 2 and is rotatable is provided at the other end of the press actuator 6 .

The spring housing 10 has a bolt part 12 and a nut part 13 screwed into a threaded part 12a of the bolt part 12, and a spring 11 is housed in the bolt part 12. Both ends of the spring 11 are in contact with the bolt part 12 and the nut part 13, and are expandable and contractible. A shaft 15 of a clamp motor 14 is fixed to the nut portion 13.

Therefore, when the motor 14 rotates, for example, to the right by a predetermined angle, the nut portion 13 moves to the right and the spring 11 is compressed. One end of the biasing member 16 is attached to the bolt part 12, which transmits the elastic force of the spring 110 to the other end of the pressing actuator 6, and elastically biases the pressing actuator 6 to rotate the infant around the support part 9.・H)

The other end of the biasing portion 4416 is attached to the end of the pressing actuator 6. One end of the roller diameter detection root 17 is pressed into the pressing actuator, and its (
l! ! The end is in contact with the measuring section 181) of the measuring section 1B, and is used to detect the diameter of the pressing roller 5. 4. The diameter of the pressing roller 5 is detected by measuring the height of the measuring section 18. 1. Therefore, this press ff: [
1-1° ink that can detect the outer diameter of the work W by detecting the diameter of the la 5]-1 to 19 are connected to the inlet of the processing section 20, is inserted from the ink 1-1-19 and dropped into the processing section 20. The shoe member 21 is provided on the side of the constant 1Iv1 roller 1. Pressing member 2
1a is for pushing out the workpieces W placed in the processing section 20 one by one. The stationary roller 1 and the pressing roller 5 are brought into contact with the outer IF, l of the workpiece W by the above-mentioned shoe member 21,
This workpiece W is driven to rotate. In addition, this actual 1fA'
In /14, both the stationary roller 1 and the pressure roller 5 are rotated by the motors 3 and 7, and therefore the workpiece W is rotationally driven C1 by the constant fiO-roller 1 and the pressure roller 5, but the pressure roller The workpiece W may be rotationally driven by only the rotation of the stationary roller 1 without providing the motor 7 for rotating the workpiece W.

The magnet 23 is installed in the L section 20 and serves to internally grind the workpiece W while being rotated by the stationary roller 1 and the pressing roller 5. The outchute 24 is connected to the outlet of the processing section 20 and is for discharging the processed workpiece W to the outside. Work on out shoe 1/24 W
The ejection is caused by the expansion D-ra 5 rotating in the direction of the arrow Ah about the support part 9 as a pivot and moving in the L direction, by driving the motor 14.
This is done by moving the pressing part +4218 actuated by the cylinder 22 by 1''.

FIG. 2 is a block diagram showing the electrical configuration of the pressing force control means according to an embodiment of the present invention. The input means 31 has a keyboard or the like, and inputs the inner diameter d1 of the workpiece W obtained by measuring the cutting position of the workpiece W using a rear balk gauge, a Freon 1-balk gauge, etc., and the measuring part 18 or a gauge, etc. Measured outer diameter D1 of workpiece W
and the parameter m determined by the material of the workpiece W, etc.
This is what you need to type. The processing means 32 is the human power means 3
An operation Q is performed to determine the wall thickness t1 of the workpiece W using the inner diameter d1 of the workpiece W and the outer diameter D1 of the workpiece W output from 1, and the stiffness value C1 is calculated using the wall thickness v1:1 and the parameter m.
The motor 14 is rotated by a predetermined angle of 0 based on the rotation angle.

1, that is, based on the stiffness value C1 of the workpiece W, the motor 14
is rotated by a predetermined angle θ to change the elasticity of the spring 11.

As a result, the pressing act on the pressing roller 5, -J
The pressing force of the eta 6 is controlled by i,11. Therefore,
The pressing force with which the grindstone 23 contacts the inner surface of the work W is the rigidity value C
1, and the inner surface of the workpiece W is ground by Ttl+ by this pressing force.

In this embodiment, the spring 11 is used in order to force the pressure actuator 6 for adjusting the pressure force of the pressure roller 5 to rotate counterclockwise around the support portion 9.
A hydraulic cylinder or the like may be used instead of the spring 11. Also, in order to detect the outer diameter D1 of the workpiece W,
Although the roller diameter detection plate 17, the measurement part 18, etc. are provided, they do not need to be provided when the workpiece W is measured with a gauge or the like.

(Effects of the Invention) As described above, according to the present invention, the wall thickness of the workpiece is detected based on the outer diameter and inner diameter of the workpiece, and the pressing force of the pressing actuator is detected based on the wall thickness and the above-mentioned outer diameter. By providing a pressing force control means for controlling the grinding force, the workpiece is ground with a pressing force according to its rigidity, and the processing accuracy can be improved.

[Brief explanation of drawings]

Fig. 1 is a block diagram of the main parts of a workpiece support device for a grinding machine according to an embodiment of the present invention, and Fig. 2 shows a pressing force of 1 t related to the above device.
FIG. 2 is a block diagram showing the electrical configuration of the IIJ1211-T stage. W... Work (workpiece), 1... Stationary roller, 5
...Press roller, 6...Press actuator, 14
... Clamp motor (pressing force control means), 21...
- Sheet 1 member, 31... input means (pressing force control means)
, 32... processing means (pressing force control means), 33...
ilJ street 1 means (pressing force control means).

Claims (1)

[Claims] 1. A workpiece support device for a grinding machine that supports a cylindrical workpiece, which comprises: a stationary roller that contacts the outer circumference of the workpiece and rotates the workpiece; a press roller movably supported so as to press the workpiece; a shoe member in contact with the outer periphery of the workpiece; a press actuator that makes it possible to adjust the pressing force of the press roller; A workpiece of a grinding machine having a pressing force control means that detects the wall thickness of the workpiece based on the outer diameter and inner diameter of the object, and controls the pressing force of the pressing actuator based on the wall thickness and the outer diameter. Support device.