JPH1071538A - Dust collecting method and device of crankshaft mirror - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the dust collecting efficiency, and to make it possible to apply a dust collecter even to a single head type crankshaft mirror, by stopping the dust collector, when a specific time passes after the processing of a work is completed. SOLUTION: The system is composed to process a work 3 supported between work heads 5 by cutters provided to spindle heads 6, while a part of the work 3 is supported by rests 9 provided to the spindle heads 6. In this case, while dust-collecting hoods 12 and 13 are provided to the rests 9, to surround the peripheries of the spindle heads 6, the dust-collecting hoods 12 and 13 are connected to a dust collector 16. Since the peripheries of the spindle heads 6 are to be surrounded by the dust-collecting hoods 12 and 13, and the rests 9, the dust collecting efficiency is high, and the dust-collecting device can be applied even to a single head type crankshaft mirror having only one set of spindle head 6 and rest 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crankshaft mirror dust collecting apparatus for collecting oil smoke, dust and the like (hereinafter referred to as dust) generated during machining of a workpiece.

[0002]

2. Description of the Related Art Conventionally, in a crankshaft mirror for processing a crankshaft, dust or the like is generated at the time of processing a work, thereby deteriorating a working environment. For this reason, conventionally, as shown in FIG. 1, a hood b is provided above a machine room a in which a crankshaft mirror is housed, and the hood b and the dust collector c are connected by a duct d, and the hood b collects dust. Dust and the like are sucked in and collected by the dust collector c through the duct d, or the upper surface of the machine room a is sealed with the cover e as shown in FIG. 2, and the inside of the machine room a and the dust collector c are connected by the duct d. The dust and the like floating in the machine room a are sucked and collected by the dust collector c.

However, in the case where the hood b is provided above the machine room a, part of the dust and the like leaks from the gap of the hood b above the machine room a, so that the efficiency of collecting the dust and the like is low and the dust and the like leak. There was a problem that the working environment deteriorated due to dust and the like. In the case where the upper surface of the machine room a is covered with the cover e, a work loading / unloading port f for loading and unloading a workpiece is opened in a part of the cover e. Leaks and the work loading / unloading port f
Even when the shutter is provided, there is a problem that a part of the dust leaks every time the shutter is opened and closed, thereby deteriorating the working environment. Further, in any of the above cases, since the dust and the like are collected by collecting the air volume of the entire machine room a, a dust collector c having a large capacity is required, and the cost is increased.

In order to improve such a problem, Japanese Patent Application No.
In 277342, each rest is provided with an inter-rest cover, and when each rest is moved to the work supporting position, the surroundings of the cutter and the rest arm are surrounded by the inter-rest covers, thereby collecting dust and the like generated during processing. There has been proposed a dust collector configured to do so.

However, in the above-mentioned conventional type in which dust is collected by the inter-rest cover, since the inter-rest cover is short, the leakage between the covers is large, the dust collection efficiency is low, and the left and right rests are not collected. Due to the structure in which the cover is matched to surround the periphery of the cutter, there is a problem that it cannot be applied to a single-headed crankshaft mirror having only one spindle head and rest.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and provides a dust collecting device for a crankshaft mirror which has a high dust collecting efficiency and can be easily applied to a single-head type crankshaft mirror. It is intended to do so.

[0007]

According to a first aspect of the present invention, a work supported between work heads is processed by a cutter provided on a spindle head, and the work is supported by a cutter provided on a spindle head. In a crankshaft mirror adapted to be supported by a rest provided on a spindle head, a dust collector is connected to a dust collection hood provided to surround the spindle head,
In addition, the dust collector is operated at the time of processing the work, and dust generated during the processing is collected through a dust collecting hood, and the dust collector is stopped after a predetermined time has elapsed after the completion of the processing of the work. It is.

[0008] With the above structure, dust generated during work processing can be efficiently collected, and dust is collected for a predetermined time after work processing, so that dust remaining in the dust collection hood is reliably collected. Can be dusty.

In order to achieve the above object, the invention according to claim 2 is such that the predetermined time can be arbitrarily set by a timer.

With the above configuration, the dust collection time after machining the workpiece can be arbitrarily set according to the state of generation of dust and the like, so that dust and the like remain in the dust collection hood even after the dust collector is stopped. Problems such as the dust collector operating even when there is no dust in the dust collecting hood can be eliminated.

According to a third aspect of the present invention, a work supported between work heads is processed by a cutter provided on a spindle head.
In a crankshaft mirror configured to support a part of the work by a rest provided on a spindle head, a dust collecting hood is provided on the rest so as to surround a periphery of the spindle head, and the dust collecting hood is mounted on a dust collector. Connected.

With the above configuration, since the spindle head is always surrounded by the dust collecting hood and the rest, dust generated during work processing can be efficiently collected, and the dust leaks to the periphery of the machine. Work environment, so that the working environment can be improved.

Further, since the dust collecting hood is mounted on the rest and moves to the processing position together with the spindle head, there is no need to provide a separate means for moving the dust collecting hood. Therefore, the present invention can be easily applied to a single-headed crankshaft mirror having one spindle head and one rest.

According to a fourth aspect of the present invention, there is provided a crankshaft mirror having two spindle heads, wherein a dust collecting hood is provided so as to surround the periphery of each spindle head, and these dust collecting hoods are provided. It is connected to a dust collector via a flexible tube and a fixed duct.

According to the above configuration, since a fixed duct can be shared with a plurality of dust collecting hoods provided for each spindle head, there is no need to provide a duct for each dust collecting hood, and thus the duct is installed. Space and equipment costs can be reduced. In addition, by providing the fixed duct, the length of the flexible tube connecting the dust collecting hood and the fixed duct can be shortened, so that the installation space for the flexible tube may be reduced, thereby reducing the size of the entire apparatus. Since the fixed duct has less flow resistance than the flexible tube, the dust collection efficiency is also improved.

In order to achieve the above object, the invention according to claim 5 is provided with an opening for discharging chips and sucking air below the dust collecting hood.

According to the above configuration, the chips generated during work processing do not drop from the opening and stay in the dust collecting hood, so that the chips can be easily cleaned and the dust collecting hood can be opened from the opening. Since dust and the like are sucked into the dust collector together with the air sucked into the inside, the dust and the like can be efficiently collected and do not leak from the opening.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the drawings shown in FIGS. 3 is a plan view of the machine room in which the crankshaft mirror is housed, FIG. 4 is a front view of the machine room with the front wall omitted, and FIG. 5 is an enlarged side view near the rest of the crankshaft mirror. In these figures, 1
Is a crankshaft mirror housed in a machine room 2 surrounded by a soundproof wall 2a, and a front door of the machine room 2 is provided with a door 2b which can be opened and closed.

The crankshaft mirror 1 is a bed 1
a, two work heads 5 are provided movably in a contacting / separating direction (Z-axis direction), and chucks 5a for gripping both ends of the work 3 to be machined are provided on opposing surfaces of these work heads 5. In addition, two spindle heads 6 are provided between the work heads 5 so as to be movable in the longitudinal direction (Z-axis direction) of the bed 1a. The spindle head 6 is provided with slides 7 on a saddle 6a provided at a lower portion so as to be movable in a Y-axis direction orthogonal to the moving direction of the saddle 6a. Both ends of the slide 7 are attached to the chuck 5a. A cutter that rotates around the fixed work 3 to cut the work 3 and a swing head (both not shown) that swings the cutter in a vertical direction (X-axis direction) are provided.

A rest 9 for supporting the work 3 is fixed to a saddle 6a on a surface facing the spindle head 6. As shown in FIG. 5, the rest 9 has a pair of rest arms 9b supported at one end by pins 9a and the other end of which is opened and closed by an arm cylinder 11 in the vertical direction.
A semi-circular notch 9c is provided substantially at the center of the rest arm 9b, and a pad 9d for supporting the work 3 is attached to the notch 9c. On the open end side, a substantially U-shaped clamper 9e for clamping each of the rest arms 9b in a closed state and a clamp cylinder 10 for moving the clamper 9e forward and backward are provided.

On the other hand, dust collecting hoods 12 and 13 are attached to the rear end of each rest 9 so as to surround the periphery of the spindle head 6. The dust collecting hoods 12, 13
Has a substantially box-shaped hermetic structure having openings 12a and 13a on its lower surface, and has a volume that does not interfere with the movement of the slide 7 or swing head constituting the spindle head 6 even when the spindle 7 moves. The cutter provided on the head 6 can efficiently collect dust and the like generated when the work is cut.

On the upper part of each dust collecting hood 12, 13,
A movable duct 12b communicating with the inside of the dust collecting hoods 12, 13;
13b, these movable ducts 12b, 1
One end of a flexible tube 14 formed of a bellows-shaped hose is connected to 3b.

The flexible tubes 14 are provided with the spindle head 6
When the dust collecting hoods 12 and 13 are moved, the length is set so as not to hinder the movement thereof, and the other end of each flexible tube 14 is fixed to a fixed duct 15 installed above the machine room 2. Connected to one end.

The other end of the fixed duct 15 is connected to the machine room 2
The other end of the fixed duct 15 and the dust collector 16 are connected by a bellows-shaped flexible tube 17.

Next, a method of collecting dust and the like generated during the processing of the work 3 using the above dust collecting apparatus will be described. First, in accordance with the size of the workpiece 3 to be processed, a predetermined time period after which the dust collector 16 stops after the workpiece processing is set by a timer (not shown). When the operation of the crankshaft mirror is started, the spindle head 6 is moved in the longitudinal direction of the work 3 whose both ends are gripped and fixed by the chuck 5a, and is positioned on a pin or a journal to be processed first.

At this time, together with the rest 9 attached to the saddle 6a of the spindle head 6, the dust collecting hood 12,
13 is also moved, the rest 9 is automatically positioned on the journal adjacent to the processing part, the respective rest arms 9b are closed, and the journal adjacent to the processing part is moved to the respective rest arms 9.
b. And in this state, the dust collector 16
The cutting of the work 3 is started by rotating the cutter provided on the spindle head 6 while operating the cutting head. Chips generated during the processing are removed from the lower openings 12a and 13a of the dust collecting hoods 12 and 13. The dust falls on the scrap conveyor 18, is carried out by the scrap conveyor 18, and the dust and the like are sucked from the openings 12a, 13a together with the air sucked from the openings 12a, 13a.
b, 13b, gathered in a fixed duct 15 by a flexible tube 14, then sucked into a dust collector 16 via a flexible tube 17, and provided with a dust filter (not shown) provided in the dust collector 16. ) And collected.

During processing, the periphery of the spindle head 6 is
In addition to being covered by the dust collecting hoods 12 and 13, the rest 9
Since the side is closed by the rest 9, dust generated during processing can be efficiently collected by the dust collecting hoods 12 and 13, and does not leak to the surroundings.

On the other hand, when the processing of all the processing parts of the work 3 is completed, each spindle head 6 is returned to the original position and the rotation of the cutter is stopped. Dust and the like remain. However, since the dust collector 16 continues to operate for a time set in advance by the timer even after the cutter stops, dust remaining in the dust collection hoods 12 and 13 is further sucked into the dust collector 16 and removed.

When the time set by the timer elapses, the dust collector 16 is stopped, and during this time, the work 3 which has been processed is carried out, and the work 3 to be processed next is carried in. Supported. By repeating the above operation, the work 3 is continuously processed, and dust generated during the processing can be surely collected without leaking to the periphery of the machine.

In the above embodiment, the case where the present invention is applied to a double-headed crankshaft mirror provided with two spindle heads 6 has been described. It can be implemented.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a conventional dust collector.

FIG. 2 is an explanatory view of a conventional dust collector.

FIG. 3 is a plan view of a machine room provided with a dust collecting apparatus according to the embodiment of the present invention.

FIG. 4 is a partially omitted front view of a machine room provided with a dust collecting apparatus according to the embodiment of the present invention.

FIG. 5 is an enlarged side view of the vicinity of a rest of a crankshaft mirror provided with the dust collecting device according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 3 ... Work 5 ... Work head 6 ... Spindle head 7 ... Slide 9 ... Rest 12,13 ... Dust collecting hood 12a, 13a ... Opening 14 ... Flexible tube 15 ... Fixed duct 16 ... Dust collector

Claims (5)

[Claims] 1. A work 3 supported between work heads 5 is processed by a cutter provided on a spindle head 6, and a part of the work 3 is supported by a rest 9 provided on the spindle head 6. In the crankshaft mirror constructed as above, the spindle head 6
The dust collector 16 is connected to the dust collecting hoods 12 and 13 provided so as to surround the periphery of the work, and the dust collector 16 is operated at the time of machining the work, and dust generated at the time of machining is removed.
13. A method for collecting dust on a crankshaft mirror, comprising: collecting dust via a dust collector 13; and stopping a dust collector 16 after a predetermined time has elapsed after processing of the workpiece 3 is completed. 2. The method for collecting dust on a crankshaft mirror according to claim 1, wherein the predetermined time can be arbitrarily set by a timer. 3. The work 3 supported between the work heads 5 is processed by a cutter provided on the spindle head 6, and a part of the work 3 is supported by a rest 9 provided on the spindle head 6. In the crankshaft mirror constructed as above, the dust collecting hoods 12 and 13 are provided on the rest 9 so as to surround the periphery of the spindle head 6.
And the dust collecting hoods 12 and 13 are attached to the dust collector 1.
6. A dust collecting device for a crankshaft mirror connected to 6. 4. In a crankshaft mirror having two spindle heads 6, dust collecting hoods 12 and 13 are provided so as to surround the periphery of each spindle head 6, and these dust collecting hoods 12 and 13 are connected to a flexible tube 14. A dust collector for a crankshaft mirror connected to a dust collector 16 via a fixed duct 15. 5. A dust collecting device for a crankshaft mirror according to claim 3, wherein openings 12a and 13a for discharging chips and sucking air are provided below the dust collecting hoods 12 and 13.