JPH11114796A - Deburring device for round rod-shaped work piece end - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continuously perform deburring work for many work pieces on the way of the conveyance of the work pieces. SOLUTION: A deburring device for a round rod-shaped work piece end is provided with a work piece conveying device 2 for conveying a plurality of round rod-shaped work pieces 25 in the constant direction while rotatably supporting them so that they may face the direction perpendicular to the conveying direction, a polishing device 8 provided on one side of the work piece conveying device so as to be perpendicular to the work piece conveying direction, and in which the winding part in a polishing belt 12 wound on a pair of rollers 10, 11 to the roller 11 on the work piece conveying device 2 side is faced to the upper parts of the work pieces 25, and a work piece holding and rotating device 15 provided above the work piece conveying device 2 so as to face the polishing device 8, and for applying the rotation to the work pieces 25 by bringing the lower surface of a horizontal feeding part as the action surface of the pressing belt 18 to be traveling in the conveying direction of the work pieces 25 into contact with the upper surfaces of a plurality of the work pieces 25.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deburring apparatus which continuously removes burrs on the edge of a round bar-shaped workpiece caused by, for example, shearing.

[0002]

2. Description of the Related Art For example, as a material for forming an engine valve by hot forging, a long round bar-shaped raw material is cut into a predetermined length to obtain a short work (referred to as a billet). Things are used.

[0003] Since the above cutting is usually performed using a shearing device, burrs are generated at the edges of the work after shearing. If such burrs are generated, it hinders the work from being inserted into the press die, and it is necessary to remove them.

Conventionally, an operator holds a work by hand, grinds and removes burrs with a grinder, and performs deburring work using a lathe or a grinder.

[0005]

In the above-mentioned manual work or deburring work using a lathe or the like, it is inefficient, so
It is not suitable for mass production, and small engine valve works are small and short in diameter, so special transport and supply equipment is required to transport and supply the work to lathes, etc. Expensive.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has been made to greatly improve productivity by continuously performing deburring work of a large number of works while the works are being conveyed. It is intended to provide a deburring device for round bar-shaped workpieces.

[0007]

SUMMARY OF THE INVENTION According to the present invention, there is provided a work transport apparatus for transporting a plurality of round bar-shaped workpieces in a fixed direction while rotatably supporting a plurality of round bar-shaped workpieces so as to face in a direction orthogonal to the transport direction. A part of the polishing belt, which is provided on one side of the polishing belt and is orthogonal to the conveying direction of the work, and is wound around a pair of rollers and runs around the roller on the work conveying device side, A polishing device facing the upper edge, and a lower surface of a horizontal revolving portion which is an operation surface of a presser belt provided above the work transporting device so as to face the polishing device and forwards the workpiece in the transport direction of the workpiece. Is brought into contact with the upper surfaces of a plurality of works to solve the problem by providing a work holding and rotating device that rotates the works.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4, a roller-type work transfer device (2) that runs endlessly toward the front (hereinafter, the direction is referred to as the left in FIG. 1 as the front) above the base (1). Is provided.

The work transfer device (2) includes a plurality of rollers (4) rotatably supported on a support shaft (3) facing left and right,
A pair of left and right link chains (5) and (5) that support both ends of the support shaft (3) of each roller (4) at a constant pitch is provided between adjacent rollers (4) in front and rear. A gap is formed in which a work (25) to be described later can be placed and supported. The width of the roller (4) is smaller than the length of the work (25) so as to support the center of the work.
(See FIG. 2).

The lower end surfaces of the left and right chains (5) are shown in FIG.
As shown in (1), a pair of left and right front and rear directions fixed to the upper end of a support plate (6) erected on the base (1) so as to protrude above the upper surface of the roller (4). Guide plate facing (7)
(7) is supported by the upper surface of the inwardly bent portion (7a),
The work transfer device (2) rotates while being supported by the inwardly bent portion (7a).

On the left side of the work transfer device (2), a polishing device (8) is provided orthogonal to the work transfer device (2).

The polishing device (8) includes a drive roller supported by a pair of bearing members (9) (9) erected on a base (1).
(10), a driven roller (11) (not shown in FIG. 1) which is provided close to the side end of the roller (4) diagonally above, and wound around these rollers (10) (11). A sandpaper-like polishing belt (1
2) and a motor (14) for driving the drive roller (10) by a belt (13).

The portion of the left guide plate (7) close to the driven roller (11) is cut off by a length substantially corresponding to the width of the polishing belt (12). The rotation of the belt (12) is not hindered.

As shown in FIG. 4, an elastic body (11a) such as soft urethane is fitted on the outer peripheral surface of the driven roller (11).

A work holding and rotating device (15) is provided above the work transfer device (2) at a position facing the driven roller (11) of the polishing device (8).

The work holding and rotating device (15) includes a pair of front and rear driven rollers (16) and (16) pivotally supported by an immovable support (not shown) immediately above the work transfer device (2). A driving roller (17) pivotally supported by an immovable support member (not shown) above the front portion between the motors, a motor (not shown) for driving the driving roller (17), and the three rollers (16) A presser belt (18) looped around (17), and three presses provided in a space surrounded by the presser belt (18) and pressing the horizontal running portion of the presser belt (18) downward from the inside. It consists of a belt tensioner (19).

The belt tensioner (19) has a horizontal support rod (2).
A pivoting lever (21) having a central portion pivotally mounted at (0) and concavely bent forward; and The pressing roller (22) pressing the (upper surface), the upper end of the rotating lever (21) and the support plate (23) are engaged to urge the rotating lever (21) counterclockwise in side view. It consists of a tension coil spring (24).

The work (25) cut to a predetermined length by a shearing device (not shown) is placed and held between the adjacent rollers (4) and (4) in the work transfer device (2) and transferred forward. It has become.

At this time, as described above, since the width of the roller (4) is smaller than the length of the work (25), the burrs (25a) generated at the edge of the work (25) by the shearing are formed by the roller (4). (4)
Contact is prevented.

Pressing belt of the work holding and rotating device (15)
In (18), as shown in FIG. 3, the front part of the horizontal revolving part, which is the working part, contacts the right end of the roller (4) (upward in the figure), and the rear part also has the roller (4). Is inclined forward and rightward in plan view so as to abut on the left end. this is,
When a plurality of workpieces (25) conveyed in a random manner to the lower side of the presser belt (18) are transported forward while being rotated by the presser belt (18), they are moved rightward (upward in FIG. 3). This is for bringing the right end face of the work (25) into contact with the right guide plate (7).

By doing so, the polishing apparatus (8)
The multiple workpieces (25) passing by the side of the
Each work that is positioned based on (7) and is a polishing part
The left edge of (25) can be aligned and polished uniformly by the polishing belt (12).

In the deburring apparatus of the above embodiment, the polishing device (8) and the work holding and rotating device (15) are operated together,
Roller (4) of work transfer device (2) for transferring work (25) after shearing
When the paper is continuously transported forward and supported by
The plurality of workpieces (25) that have reached just below (18) are pressed against the right guide plate (7) while being rotated counterclockwise in side view. At the same time, the left edge of each work (25) is simultaneously polished by the polishing belt (12) wound around the driven roller (11), and the burrs (25a) generated at that portion are removed.

At this time, since the elastic body (11a) is fitted on the outer peripheral surface of the driven roller (11), the polishing belt (12) is adjusted according to the size of the burr (25a) and the shape of the outer peripheral edge. The contact portion with the work (25) can be bent in the radial direction. Therefore, since a large load is prevented from being applied to the polishing belt (12), the life of the polishing belt (12) is not shortened due to peeling of abrasive grains.

Further, each work (25) below the work holding and rotating device (15) comes into strong contact with a pressing belt (18) stretched downward by a plurality of belt tensioners (19), and the work is relatively large. Since the rotational force is applied, even if a grinding load from the polishing belt (12) is applied to the work (25), a slip occurs between the work (25) and the holding belt (18), and the work (25 ) Does not stop or fluctuate, so
There is no risk of causing uneven polishing on the outer peripheral edge.

Further, the horizontal revolving portion of the polishing belt (12) is inclined obliquely to the left and right, and the right end face of the work (25) is brought into contact with the right guide plate (7) to move the work to the side. Even if the polishing belt (or driven roller) (12) comes into contact with the work (25), the work (25) does not move to the right side,
The polishing efficiency of each work (25) can be improved, and uniform polishing can be performed.

Although not shown, the work (25)
In order to remove the burrs formed on the right end face of the workpiece, during the transfer of the work, a polishing apparatus (8) and a work holding and rotating apparatus (15) having the same configuration as in the above embodiment, a polishing apparatus (8), Contrary to the above, it is arranged on the right side of the work transfer device (2), and the horizontal running portion of the presser belt (12) is separately provided inclining in the opposite direction to the above.

The apparatus of the present invention can be used not only for removing the burrs but also for chamfering a work edge.

[0028]

According to the present invention, it is possible to simply and continuously remove the burrs at the edge of the work simply by mounting and conveying a large number of works on the work transfer device. Productivity is greatly improved compared to deburring work.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing one embodiment of the present invention.

FIG. 2 is an enlarged vertical sectional rear view of a main part along line II-II in FIG.

FIG. 3 is an enlarged plan view of a main part.

FIG. 4 is an enlarged sectional view of a driven roller of the polishing apparatus.

[Explanation of symbols]

 (1) Base (2) Work transfer device (3) Support shaft (4) Roller (5) Chain (6) Support plate (7) Guide plate (8) Polishing device (9) Bearing member (10) Drive roller ( 11) Driven roller (11a) Elastic body (12) Polishing belt (13) Belt (14) Motor (15) Work holding and rotating device (16) Driven roller (17) Drive roller (18) Pressing belt (19) Belt tensioner ( 20) Support rod (21) Rotating lever (22) Press roller (23) Support plate (24) Tension coil spring (25) Work (25a) Burr

Claims (1)

[Claims] 1. A work transfer device for transferring a plurality of round bar-shaped works in a certain direction while rotatably supporting the work so as to face in a direction perpendicular to the transfer direction. A polishing apparatus having a polishing belt wound around a pair of rollers and running around a roller on the side of the work transfer device facing the upper end of the work; The lower surface of the horizontal revolving portion, which is the upper surface of the polishing device, is provided to face the polishing device, and is the working surface of the presser belt that recirculates the workpiece in the conveying direction.
A deburring device for a round bar-shaped work edge, comprising: a work holding and rotating device that rotates the work by bringing the work into contact with upper surfaces of a plurality of works.