JPS62162458A - Polishing machine for t-shaped work - Google Patents

Abstract

PURPOSE:To obtain effective and simplified polishing of the outer surface of a T-shaped work (tee) by providing two arms parallel to and vertical to the axis of rotation of a buff, respectively, and means for mounting the work. CONSTITUTION:There are provided at the upper end of a column 13 a first actuator 14 which is provided with a first L-shaped arm 15, at the extreme end thereof a second actuator 17 which is provided with a second L-shaped arm, and a third actuator 19, and a tee W is mounted to a mounting shaft 18 extending a long the axis of the third actuator 19. The tee W is rotatable through an angle of 180 deg. around a first axis b and through an angle of 90 deg. around a second axis c, and in combination therewith, the second arm 16 can take an attitude parallel to or vertical to the first arm 15, permitting proper and uniform automatic polishing of the outer surface including respective portions W1, W2, W3 by changing the attitude of the tee W with respect to the buff 10. At the same time, the polishing mechanism can be simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a polishing device for automatically polishing the outer circumferential surface of a workpiece formed in a mold shape in connection fittings for water supply and the like.

(Prior art) As a conventional technology, there is Japanese Patent Application Laid-Open No. 15959/1984.

(Problems to be Solved by the Invention) Conventional apparatuses have had problems in that it is impossible to polish the entire outer peripheral surface of a knife-shaped workpiece, and in that the polishing structure is complicated.

SUMMARY OF THE INVENTION An object of the present invention is to provide a polishing device for a knife-shaped workpiece that can automatically polish the outer peripheral surface of the knife-shaped workpiece accurately and uniformly over the entire area.

(Means for Solving the Problems) The present invention provides base 9 having a circular cross section. In order to control the reciprocating rotation of a T-shaped workpiece in which a part and a branch part are orthogonally connected in the circumferential direction of the outer peripheral surface, reciprocating rotation is performed around a first axis parallel to the rotation axis of the buff. A first arm supported by a motion 1iJ function, and a first arm that is perpendicular to the first axis and on a longitudinal section bisecting the buff in order to control the rotation of the workpiece along the axis of the workpiece. A second arm supported so as to be rotatable about a second @ line disposed at the center of rotation is installed together with the second arm, and the second arm controls the movement of the workpiece in the axial direction of the main body. The gist of the polishing device is a polishing device provided with a mounting means for attaching the polishing device.

(Function) The device of the present invention performs a compound operation in which the workpiece is moved in the axial direction of the main part or branch part of the workpiece while being reciprocally rotated in the circumferential direction of the outer peripheral surface of the workpiece in a state in which the workpiece is kept in constant pressure contact with the buff. This is configured to polish the entire circumferential surface of a T-shaped workpiece by combining this and a compound operation of rotating the workpiece along its axis while reciprocating in the circumferential direction of the outer circumferential surface of the workpiece. be.

(Example) Next, one embodiment of the present invention will be described with reference to the drawings.

A branch part W2 having a circular cross section is connected orthogonally to the central part of the main body W1 having a circular cross section via a connecting part W3.
A polishing stand 1 installed to polish a shaped workpiece W includes a base 2, a column 3 erected on the base 2, a mounting base 4 placed horizontally on the upper end of the column 3, and this mounting base. A motor base 6 is connected to the piston shaft of a cylinder 5 attached to the motor base 4 and is arranged so as to be tiltable above the mounting base 4.
, a motor 7 installed on a motor base 6, and a buff holder 8 in which a mounting shaft 9 is horizontally rotatably supported, and a disc-shaped buff 10 is removably attached to the tip of the mounting shaft 9 r vertically. The buff 10 is rotatably attached, and the cylinder 5C is always pressed downward, and is allowed to move up and down within a predetermined range.

A mounting stand 11 for mounting a workpiece W is installed opposite the polishing stand 1, a column 13 is erected on the base 12, and a rotary type first actuator 14 is mounted on the upper end of the column 13. ing.

The L-shaped first arm 15 has its base end fitted to the rotor 14a of the first actuator 14 to control the reciprocating rotation of the workpiece W in the circumferential direction of the outer circumferential surface. On the other hand, the first arm 15 is supported so as to be rotatable in a reciprocating manner about a first axis parallel and horizontal to the rotational axis a of the buff 10, and the first arm 15 is rotated in a reciprocating manner by the reciprocating rotation of the rotor shaft 14a of the first actuator 14. The first line passes through the upper side of the horizontal plane passing through the axis.
The reciprocating rotation is controlled over a range of 180° around the axis a, and at the beginning of both rotations, the posture of the first arm 15 is horizontally tilted.

The L-shaped second arm 16 provided inside the first arm 15 rotates the workpiece W along the axis j1 of the main body W1, the axis j3 of the connecting part W3, and the axis j2 of the branch part W2. A rotary type second actuator 17 whose base end is attached to the distal end of the first arm 15 for dynamic control.
The buff 17a is fitted onto the buff 17a, and the first axis is perpendicular to the first arm 15 in a slightly staggered manner, and is arranged on a vertical bisecting longitudinal section d that cuts through the center of the thickness direction of the buff 10. second
The second
The rotation of the rotor shaft 17a of the actuator 17 causes the second
The rotation is controlled over a range of 90' around the second axis C through the first arm 16 side on the upper and upper sides of the horizontal plane passing through the axis C, and at the rotation end, the posture of the second arm 16 is vertical. be stood up. Then, when the first and second actuators 14.17 are driven synchronously, the second arm 16 rotates around the first axis C together with the first arm 15 while rotating 90 degrees around the second axis C. It is set to be repeatedly rotated back and forth, 11iJJ back and forth around the first axis! It is driven by a combined operation of j, 13 movement and rotational movement around the second axis C.

The mounting shaft 18 for mounting the workpiece W is the second arm 16
Centennial type 37th Kubuyu 1- is attached to control the movement of the work web trunk W1 in the axis j1 direction with respect to the tip of the workpiece web trunk W1.
The work W is connected to the tip of the second arm 16 so as to be able to move forward and backward in the axial direction, and the workpiece W is pressed against the buff 10 so as to push the buff 10 upward, and the axial center of the M trunk W1.
1 is attached to the second arm 16 via attachment@18 so that the axis of the attachment shaft 18 coincides with the axis of the attachment shaft 18.

Then, the branch part W2 of the work W is on the upper side and the group 9? The position of the second arm 16 is maintained horizontally so that the portion W1 is horizontal (see the third illustration). When the third actuators 14 and 19 are respectively driven to repeatedly reciprocate the first arm 15 over a range of 180° around the first axis and move the mounting shaft 18 slightly backward, the outer peripheral surface of the workpiece W becomes buffed. While in constant pressure contact with 10, the outer circumferential surface moves in a reciprocating arc in the direction of the circumferential knob while the base 9? Gradually moving in the axial direction of the portion W1, the half peripheral surface on the branching portion side near the left end portion of the main portion W1 is polished. Next, the first and second actuators 14
．． 17 respectively to repeatedly rotate the first arm 15 back and forth around the first axis while moving the second arm 16 to the second
90° around the second axis C above the horizontal plane passing through the axis C
When the workpiece W is rotated over a range of The main body W is gradually rotated along the axis j2 of
After the half circumferential surface on the branch side of No. 1 is polished sequentially from the end side (
(See FIG. 3(a)), the joint portion between the main body W1 and the branch part W2 is polished sequentially from the main body W1 side to the branch part W2 side,
Further, one half circumferential surface of the branch W2 is polished (see FIG. 3), and one half (left side in the figure) of the half circumferential surface of the workpiece W on the branch section side is polished over the entire area. In addition, the branch W
The setting may be such that after polishing the half circumferential surface of No. 2, the half circumferential surface of the main body W1 is polished. In addition, when the length of the branch W2 is extended, it is necessary to hold the second arm 16 in an upright position and drive the first and third actuators 14, 19, respectively. It is easy to polish half the circumference.

Then, among the half-circumferential surfaces on the side of the branch part of the workpiece W, the other half-circumferential surface (on the right side in the figure) can also be polished in the same process as the above process or in the reverse process (see FIGS. 3(C) to (E)). .

Furthermore, the first arm 15 is reversed by 180 degrees so that the branch part W2 is on the lower side, and the second arm 16 is held in a horizontal position (see FIG. 3), and the first and third actuators 1
4.19, the first arm 15 is repeatedly rotated back and forth over a range of 180 degrees around the first axis a, and the mounting shaft 18 is gradually advanced. The entire length can be polished.

Next, the operation and effects of the embodiment having the above configuration will be explained.

Now, in this example, in order to reciprocate and rotate the workpiece W in the circumferential direction of the outer circumferential surface with the workpiece W in pressure contact with the buff 10, the rotation center is set to a first axis parallel to and horizontal to the rotation axis a of the buff 10. A first arm 15 supported so as to be able to move in a reciprocating manner, and a workpiece W.
q + t + center of workpiece W in a state where it is pressed against buff 10,
jl, j2. j3 [In order to rotate, the center of rotation is a second @ line C which is perpendicular to the first fold line C to the first arm 15 and arranged on the longitudinal section d that equally divides the buff 1002. Also provided with a second arm 16 that is rotatably supported,
Furthermore, a mounting shaft 18 connected to the third actuator 19 is attached to the second arm 16 to control the movement of the workpiece W in the direction of the axis j1 of the 7S trunk W1.
It is equipped with.

Therefore, it is possible to automatically polish the outer circumferential surface of a workpiece W with a complex curved shape accurately and uniformly over the entire area, eliminating the need for a complex mechanism such as a copying mechanism or a robot, and using a polishing system. This has the effect of simplifying the polishing process and streamlining and simplifying the polishing work.

(Effects of the Invention) In other words, the present invention uses the rotation of the buff to control the reciprocating rotation in the circumferential direction of the outer peripheral surface of a T-shaped workpiece in which a main body with a circular cross section and a branch part are orthogonally connected. Parallel to the @ line/7 The first axis is supported so as to be able to move back and forth around the first axis as the center of rotation.
In order to control the rotation of the arm and the workpiece along the axis of the workpiece, the first arm rotates a second INl line that is perpendicular to the first axis and is disposed on a longitudinal section bisecting the buff. A second arm supported so as to be rotatable about the center of movement is provided, and the second arm holds the workpiece at the base 9.
? By providing a mounting means for controlling the movement of the part in the axial direction, the outer circumferential surface of the T-shaped workpiece can be polished accurately and evenly over the entire area, and the polishing mechanism can be simplified. It has a moisturizing effect.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a side view of the main parts, FIG. 2 is a perspective view of the entire polishing device, and FIG.
＠, (c), ni), (e), and (e) are perspective views each illustrating the polishing process in order. 10...Puff 15...First arm 16...Second arm 18...Mounting axis a...Rotation axis b...First axis C...Second axis d...・Bisection longitudinal section W...Wall Wl...Body part W2...Branch part Applicant Chuo Seisakusho Co., Ltd. Agent Patent attorney Hidehiko Okada (2 others) Figure 8
(B) Figure 3 (0) 15' Figure 8 (C) Figure 3 (D) Figure 3 (E) Figure 3

Claims (1)

[Claims] A T in which a main body with a circular cross section and a branch part are connected orthogonally.
In order to control the reciprocating rotation of the shaped workpiece in the circumferential direction of the outer circumferential surface, a first arm supported so as to be rotatable in a reciprocating manner about a first axis parallel to the rotational axis of the buff; In order to control the rotation along the axis of the workpiece, the first arm is rotated about a second axis that is perpendicular to the first axis and is disposed on the bisecting longitudinal section of the buff. A second arm is movably supported, and the second arm is movably supported.
1. A polishing device for a T-shaped workpiece, characterized in that the arm is provided with a mounting means for mounting the workpiece so that the movement of the workpiece in the axial direction of the main body can be controlled.