JP3002076B2 - Simultaneous polishing equipment for multiple workpieces - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polishing apparatus used for polishing a surface of a long cylindrical body such as a muffler for a motorcycle to form a plating base.

[0002]

2. Description of the Related Art An example of such a device is disclosed in Japanese Utility Model Application Laid-open No.
26250. In this apparatus, a long cylindrical body used for a main body of a muffler for a motorcycle is used as a work, and a polishing unit movable in a longitudinal direction is arranged on one side of the work, and the work is rotated while rotating the work. A method is shown in which a polishing tape is pressed against the surface to polish in the circumferential direction.

[0003]

In order to improve work efficiency, simultaneous polishing of a plurality of works may be considered. However, even if a polishing apparatus is assembled using a conventional apparatus for this purpose, a driving source and a polishing unit for each work are required simply by the number of works, and in order to obtain a practical apparatus. A problem arises in how to lay out these many components in a compact manner.

In addition, in the conventional example, since the supply roll and the take-up roll of the polishing tape are arranged side by side on opposite sides of the work, the size of the apparatus is further increased. In addition, it is important that the workability is excellent. The present application provides a solution to these problems.

[0005]

In order to solve the above-mentioned problems, a simultaneous polishing apparatus for a plurality of workpieces according to the first aspect of the present invention includes a plurality of cylindrical workpieces that are rotated by a common drive source and arranged in multiple stages in the vertical direction. and, provided the polishing tape and the polishing head for each workpiece individually, with disposing the supply hand stage of the polishing tape onto <br/> downward, these supply means and take-up means and each of the polishing heads and polishing unit that integrally disposed to the polishing unit to one side of the workpiece, the abrasive
Characterized in that the tape is wound by a common winding means.
To

[0006]

According to the first aspect of the present invention, a multi-stage is provided in the vertical direction.
Polishing provided for each of multiple rejected workpieces
Polish simultaneously with tape.

In addition, each work is controlled by a common drive source.
The rotation reduces the number of parts.

A supply means and a take-up means for each polishing tape are vertically arranged, and the supply means, the take-up means and each polishing head constitute one integrated polishing unit and are disposed on one side of the work. Therefore, the entire apparatus can be made compact and work can be performed on one side of the work.

In addition , since each polishing tape is wound by a common winding means, the number of parts is further reduced, and the whole apparatus is made compact.

[0010]

According to the first aspect of the present invention, while a plurality of workpieces arranged in multiple stages in the vertical direction are rotated by a common drive source, the workpieces are simultaneously polished by the polishing tape and the polishing head provided respectively. Since the supply means and the winding means for each polishing tape are vertically arranged, and these supply means, the winding means and each polishing head are arranged as one integrated polishing unit on one side of the work, The number of parts can be reduced and the entire apparatus can be made compact, and work can be performed on one side of the work.

Further , since each polishing tape is wound by a common winding means, the number of parts can be further reduced and the whole apparatus can be made compact.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described with reference to FIGS. FIG. 1 is a side perspective view of a polishing unit of a polishing apparatus,
FIG. 2 is a schematic front view of the entire polishing apparatus. First, in FIG. 2, works 4 and 5 are supported in two vertical stages between support stays 2 and 3 fixed on a table 1 of a polishing apparatus.

Each of the workpieces 4 and 5 is a tapered cylindrical long body used for a muffler for a motorcycle. The entire outer peripheral surface is polished to form a plating base. 4 is rough finish, lower work 5
Is for the finished finish. However, it is arbitrarily possible to make the upper and lower works have the same polishing conditions.

Each of the workpieces 4 and 5 is polished by a single polishing unit 6 disposed on one side thereof (in this embodiment, on the rear side in the figure). The polishing unit 6 is movable in the length direction of the works 4 and 5, that is, in the left and right directions in the drawing.

The polishing heads 7 and 8 provided above and below the polishing unit 6 are adapted to press polishing tapes, which will be described later, wound on the polishing units 6 and 5 against the side surfaces of the works 4 and 5, respectively. It is taken up by a common take-up roll 9 provided at the lower part of the unit 6.

Each of the workpieces 4 and 5 has a main shaft 1 rotatably supported on support stays 2 and 3 with an interval in the vertical direction.
Both ends are detachably supported by 0, 11 and centering shafts 12, 13.

A belt 16 is wound around a driven pulley 14 provided on the main shaft 10 and a driving pulley 15 provided on the main shaft 11, and is driven by a motor 17, which is a common power source.
The workpieces 4 and 5 can be simultaneously rotated at a speed of, for example, about 300 to 1800 rpm. However, if the diameters of the driven pulley 14 and the driving pulley 15 are different, the workpieces 4 and 5 can be rotated at different speeds.

The centering shafts 12 and 13 are respectively connected to cylinders 19 supported on the support stays 3 via arms 18 so that the cylinders 19 can move in the axial direction when the workpieces 4 and 5 are attached and detached. I have.

As is apparent from FIG. 1, a polishing tape 21 supplied from a supply roll 20 provided above the polishing unit 6 has a relatively coarse abrasive grain of about 30 μm. 7 and another supply roll 22 provided below the supply roll 20, and finally wound up on a take-up roll 9 provided below the supply roll 22.

The lower supply roll 22 is provided with a polishing tape 23 which is passed through the polishing head 8 and wound on the take-up roll 9.
And the polishing tape 23 has a thickness of 15 μm.
It is composed of relatively fine abrasive grains. These polishing tapes 21 and 23 can be appropriately selected depending on the object to be polished.

As is apparent from FIG. 3, the supply roll 22 is provided with flanges 24 on both sides in the axial direction (in this figure, one flange is removed).
The winding end side of the polishing tape 21 slides on a plurality of sliding rollers 25 which are provided at an appropriate interval in the circumferential direction between the outer peripheral upper portions of the polishing tapes 4.

As is clear from FIG. 2, the supply rolls 20, 22 and the take-up roll 9 are connected to the polishing unit 6.
The take-up roll 9 is arranged in the vertical direction of
6 driven. The mechanism for feeding the polishing tapes 21 and 23 including the tension rollers 27 and 28 and the polishing heads 7 and 8 are all incorporated in a single polishing unit 6.

On the back surface of the pedestal 29 of the polishing unit 6, a slider 30 is engaged with a pair of guide rails 31 provided on the table 1 in the length direction of the works 4, 5,
A slide nut 32 provided on the back surface of the pedestal 29 between the guide rails 31 engages around a screw shaft 33 provided in parallel with the guide rail 31, and the screw shaft 33 is rotated forward and reverse by driving means (not shown). By letting
The polishing unit 6 is movable on one side of the works 4 and 5 in its length direction.

Next, the operation of this embodiment will be described. Workpieces 4 and 5 arranged vertically in two stages are shared by a common motor 3
The polishing heads 7 and 8 provided in the polishing unit 6 correspondingly to the respective side surfaces while simultaneously rotating
The polishing tapes 21 and 23 are pressed against each other to grind the circumferential direction, and at the same time, the entire surface of the works 4 and 5 is polished by moving the polishing unit 6 in the length direction of the works 4 and 5.

Therefore, if the time required for polishing each work is, for example, 120 seconds, the rough finishing and the finished finishing are completed at the same time. Therefore, the time required to finish one work by the conventional sequential method is relatively long, which is 240 seconds, which is the sum of each required time, and the time required to change the polishing tape is added. , Can be significantly reduced.

In addition, only one common motor 17 is required as a driving source for each of the workpieces 4 and 5, and each of the polishing tapes 21 and
23 can be taken up by the common take-up roll 9,
The number of parts can be reduced, and the entire apparatus can be made compact.

Further, the supply rolls 20, 22 and the take-up roll 9 are arranged in the vertical direction of the polishing unit 6, and the feed mechanism of the polishing tapes 21, 23 and the respective polishing heads 7, 8 are integrated. By being incorporated in the polishing unit 6 and being arranged on one side of the works 4 and 5, the entire apparatus can be made more compact, and work can be performed only on one side of the works 4 and 5, that is, only on the near side in FIG. Therefore, workability is also improved.

In addition, as shown in FIG. 3, the supply roll 22 is used as a guide for the polishing tape 21, so that the parts can be efficiently used also in this respect, and the provision of the sliding roller 25 enables In addition, even if the polished abrasive particles adhere to the surface of the polishing tape 21, it can be wound up smoothly.

The present invention is not limited to the above embodiment, but may be modified in various ways. For example, the number of workpieces may be any number as long as it is two or more. Further, the processing time can be changed for each work.

[Brief description of the drawings]

FIG. 1 is a perspective view of a side surface of a polishing unit of an apparatus according to an embodiment of the present invention.

FIG. 2 is a front view of a main part of the apparatus of the embodiment.

FIG. 3 is an enlarged view of a part of the apparatus according to the embodiment.

[Explanation of symbols]

4.5: work, 6: polishing unit, 7.8: polishing head, 9: winding roll, 17: motor, 20.2
2: Supply roll, 21/23: Polishing tape

Claims (1)

(57) [Claims] An apparatus for polishing a surface of a cylindrical workpiece by a polishing unit moving in the longitudinal direction of the workpiece while rotating the workpiece, wherein a plurality of workpieces rotated by a common drive source are vertically multi-tiered. arranged, provided the polishing tape and the polishing head for each workpiece individually, the supply hand stage of the polishing tape with disposing the upper and lower directions, together these supply means and take-up means and each of the polishing heads The polishing unit is arranged on one side of each work, and the polishing tapes are shared with each other.
Winding of multiple workpieces characterized by winding by winding means
Simultaneous polishing device.