JPS6312919Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Technical Field" The present invention provides a method for automatically and suitably removing a workpiece to be polished by being held in a barrel tank by a holding device from the holding device after polishing is completed. This relates to a barrel processing device that has the ability to

``Prior Art'' A barrel machining device has been proposed that polishes a workpiece by rotationally driving the barrel tank while holding the workpiece in a medium housed in a container-shaped vertical barrel tank. In such an apparatus, after polishing is completed, the work is removed from a holding device that holds the work, and a new work is attached to the holding device. However, according to such a device, in order to remove the workpiece after polishing from the holding device, one must first operate an operating device such as a foot switch or a push button switch, receive the workpiece to be removed from the holding device, and then insert a new workpiece. Since the workpiece had to be attached to a holding device, the work of taking out and attaching the workpiece was extremely troublesome. In other words, when taking out a polished workpiece while holding a new workpiece, at least both hands and one foot are required, which makes the work inefficient, and sometimes causes the workpiece to fall, resulting in defective products. . On the other hand, when a polished workpiece is taken out and placed on a predetermined table, and a new workpiece is taken out from another table and attached to the holding device, workability improves, but work efficiency decreases.

On the other hand, barrel processing allows the worker to automatically remove the workpiece after polishing from the holding device by gripping it with a chuck, and then attach a new workpiece to the holding device while the workpiece is being chucked. A device can be considered.

Problems to be Solved by the Invention However, in such equipment, since the workpiece after polishing is wetted with coolant (cooling water), the surface of the workpiece is wetted with coolant (cooling water). It is unavoidable that media and fragmented media will adhere to the media, and when chucking the workpiece, the media may be caught between the workpiece and the chuck claw, causing damage to the workpiece surface, or Media scum etc. may get into the moving parts of the chuck and cause malfunction.

Means for Solving the Problems The present invention was made against the background of the above circumstances, and its purpose is to automatically and suitably take out a polished workpiece from a holding device and hold it in a predetermined position. An object of the present invention is to provide a barrel processing device that is transported to a take-out position.

In order to achieve such an objective, the present invention includes (1) a holding device that holds the workpiece in a medium and pulls it out of the barrel tank; and (2) a holding device that is shaped like a container with an open top end and that holds the workpiece. (3) a receiving device located directly below the workpiece to receive the workpiece released from the holding device when the workpiece is pulled out of the barrel tank; A moving device that moves the work back and forth between a take-out position and a take-out position where the work is taken out by an operator.

Function and Effect of the Invention In this way, after polishing is completed, the workpiece held in the holding device is released onto the container-shaped receiving device with its upper end that has moved directly below it and is received. Since media etc. will not be caught between the workpiece and mechanical parts such as claws, the workpiece can be taken out from the holding device and transferred to the receiving position without damaging it. The effect is that the occurrence is eliminated. Moreover, since the receiving device is moved from the receiving position where the work is received to the take-out position, the holding device in the barrel processing device is always in a state in which the work is removed after polishing is completed. Therefore, the worker can attach a new workpiece held in one hand to the holding device extremely easily and safely by operating the operating device with the other hand or foot, and restart barrel machining. can. Therefore, the workability of installing a new workpiece becomes extremely good, and the work efficiency of workpiece replacement work is greatly improved. Note that the polished workpiece taken out by the workpiece takeout device can be easily taken out from the receiving device after starting the barrel machining device. In addition, since the receiving device that receives the workpiece is equipped with a foreign matter discharge port, even if a workpiece with minute media slag adhering to its surface after barrel processing falls into the receiving device, the media slag, etc. will be removed. Since the foreign matter is discharged through the foreign matter discharge port, media slag etc. do not accumulate in the receiving device during the process of repeatedly receiving the workpieces in the receiving device, and the workpiece surface is prevented from being damaged by media scum etc. inside the receiving device. This has the effect of

"Embodiment" Hereinafter, an embodiment of the present invention will be described in detail based on the drawings.

1 and 2, a gate-shaped frame 12 is erected on a base 10, and a holding device 16 for holding a workpiece 14 is mounted on the gate-shaped frame 12.
A vertical drive device 18 is provided for vertically driving the. The vertical drive device 18 is a gate-shaped frame 1
a pair of guide rods 20 provided vertically inside the frame 2, and an upper and lower frame 22 supported by the guide rods 20 to be movable in the vertical direction;
It consists of upper and lower cylinders 24 fixed to the upper horizontal part of the gate-shaped frame 12 and having rods fixed to the upper and lower frames 22. The holding device 16 is fixed to the upper and lower frames 22 in a perpendicular state, and is constructed in substantially the same manner as the device described in the utility model registration application dated June 22, 1980, filed earlier by the applicant. . That is, the upper end of the holding device 16 is connected to a rotating motor 26 fixed to the upper and lower frames 22 via a chain, and the chuck portion of the holding device 16 is driven to rotate around a vertical axis by the rotating motor 26. At the same time, the upper end of the holding device 16 is pressed downward by the opening/closing cylinder 28 fixed to the upper horizontal portion of the portal frame 12, so that the workpiece 14 can be held at the lower end of the holding device 16. The chuck that grips the handle can be opened. When the upper and lower frames 22 are moved downward by the upper and lower cylinders 24, the lower end of the holding device 16 fixed to the upper and lower frames 22 is inserted into the barrel tank 30, and the workpiece held by the holding device 16 is inserted into the barrel tank 30. 14 is adapted to be held in a medium within the barrel tank 30.

A tilting table 32 whose upper surface is inclined approximately 30 degrees with respect to the horizontal is fixed on the base 10, and the barrel tank 30
is rotatably provided on the inclined table 32 with its center of rotation inclined by approximately 30 degrees with respect to the vertical.
That is, a bearing 34 that rotatably supports a rotating shaft is fixed to the upper surface of the inclined table 32, and a barrel tank 30 that is shaped like a container and accommodates media is fixed to the upper end of the rotating shaft. It is. The lower end of the rotating shaft is connected to a drive motor 38 via a speed reducer 35 and a V-belt 36, and the barrel tank 30 is rotationally driven by the drive motor 38.

On the other hand, on the lower side of the barrel tank 30, the inclined table 32
A cover 42 that covers the entire barrel tank 30 is fixed thereon, and includes a face plate 40 that is separated from the upper end surface of the barrel tank 30 by a slight gap.
The coolant that flows out or scatters and is received by the cover 42 is collected at one end of the cover 42, and is led to a tank (not shown) by an inclined receiving gutter 44. Face plate 4 of cover 42
0, when the holding device 16 is moved downward, the holding device 1 is inserted through the lower end of the holding device 16.
A through hole 46 is formed to allow the work 14 held by the barrel 6 to be held in the media, and a nozzle 48 injects coolant into the barrel tank 30.
is fixed.

The barrel machining device configured as described above is provided with a workpiece take-out device 50. As shown in detail in FIGS. 3 and 4, the workpiece take-out device 50 is fixed on the inclined table 32, and when the holding device 16 pulls the workpiece 14 out of the barrel tank 30, the workpiece take-out device 50 takes out the workpiece 14. A receiving device 52 located directly below receives the workpiece 14 released from the holding device 16, and the receiving device 52 is placed into a receiving position where the workpiece 14 is received from the holding device 16 and a take-out position where the workpiece 14 is taken out by an operator. and a moving device 54 for reciprocating between. That is, the moving device 54 has a rotating shaft 60 supported by a bearing 58 so as to be rotatable about an axis substantially parallel to the center of rotation of the barrel tank 30 on a bracket 56 fixed on the tilt table 32; A rotary cylinder 66 in which a rod and a cylinder part are respectively rotatably connected between the tip of a lever 62 protruding from the movable shaft 60 in the radial direction and a cylinder bracket 64 protruding from the inclined table 32; , an arm 6 fixed to the upper end of the rotation shaft 60 and protruding in a direction perpendicular to the axis of the rotation shaft 60;
It consists of 8. The work receiving device 52 is fixed to the tip of the arm 68, and the rotating cylinder 66
According to the operation of the receiving device 52, the receiving device 52 is reciprocated between the receiving position and the taking-out position.

As shown in detail in FIG. 5, the receiving device 52 consists of a bottomed cylindrical main body 70 and an elastic member 72 made of synthetic rubber lined inside the main body 70, whose central axis is aligned with the rotating shaft 60. It is fixed to the arm 68 so as to be substantially parallel. And elastic member 72
The bottom part of the main body 70 and the elastic member 72 are formed in a conical shape projecting upward.
A foreign matter discharge port 74 is formed through the conical surface and has an inclined surface continuing to the conical surface such that a portion of the conical surface is extended outward.

The workpiece 14 held by the holding device 16 includes a shaft portion 76 held by the holding device 16, and a large diameter portion 78 that is cylindrical with a bottom and includes a pair of axial notches extending downward from the shaft portion 76 in a large diameter shape. The conical protrusion of the elastic member 72 lined inside the main body 70 is extremely convenient for stably receiving a workpiece 14 having such a shape, and also prevents the workpiece from sticking to the surface of the workpiece 14. 14 is suitably discharged through a foreign matter discharge port 74 having an extended conical surface of the elastic member 72.

The operation of this embodiment will be explained below.

The upper and lower frames 22 are moved downward by the upper and lower cylinders 24, and the workpiece 14 held by the holding device 16 is held in the barrel tank 30. is rotated around a vertical axis and the barrel tank 30 is rotationally driven,
The workpiece 14 is polished by the media housed in the barrel tank 30 and wetted with coolant.
After a predetermined polishing period has elapsed, when the upper and lower frames 22 are pulled up by the upper and lower cylinders 24, the workpiece 14 held by the holding device 16 is lifted out of the barrel tank 30. FIGS. 1 and 2 show this state.

When the upper and lower frames 22 reach the uppermost end, the arm 68 is rotated in accordance with the operation of the rotation cylinder 66, and the receiving device 52 is positioned at the take-out position. That is, it is moved to a position directly below the workpiece 14. Then, when the rod of the opening/closing cylinder 28 is pushed out, the chuck of the holding device 16 is opened, and the workpiece 14 falls according to gravity into the receiving device 52 located directly below it and is received. When the workpiece 14 is received by the receiving device 52, the lever 62 is rotated in accordance with the operation of the rotation cylinder 66, so that the workpiece 14 is moved to the second takeout position where the workpiece 14 is taken out by the worker, that is, on the worker's side. The receiving device 52 is moved to the left in the figure, completing one cycle of operation of the barrel processing device.

In such a state, the operator inserts a new workpiece 14 held in one hand into the chuck at the lower end of the holding device 16, and removes the workpiece by operating a push button switch or foot switch (not shown). 14 is held by the holding device 16, and at the same time, the barrel processing device is started. Thereafter, the polished workpiece 14 received in the receiving device 52 is taken out.

In this way, according to this embodiment, the workpiece 14 is dropped into the receiving device 52 that has been moved to a position directly below it, and is received. Since the workpiece 14 is not caught between the chuck and other mechanical parts that grip the workpiece 14, the workpiece 14 can be suitably moved from the take-out position to the receiving position without damaging the workpiece 14. At this time, since the receiving device 52 is not provided with a movable part, there is no possibility that media slag or the like will enter the movable part and cause malfunction.

Moreover, since the polished workpiece 14 is automatically transported from the holding device 16 to the takeout position by the workpiece takeout device 50, the operator can insert a new workpiece 14 held in one hand into the lower end of the holding device 16. You can start the barrel processing equipment just by operating the switch. Therefore, when attaching and detaching the workpiece 14 to and from the holding device 16, the workability is extremely improved compared to the conventional attaching and detaching work that requires both hands and one foot, and the possibility of accidentally dropping the workpiece 14 is almost eliminated. This greatly improves work efficiency. Further, a foreign matter discharge port 74 is formed in the receiving device 52 so that media and media slag attached to the surface of the workpiece 14 that has fallen into the receiving device 52 are discharged from the receiving device 52 through the foreign matter discharge port 74. , receiving device 52
In the process of repeatedly receiving the workpiece 14, the media etc. do not accumulate in the receiving device 52, and the workpiece 14 is not damaged by the media etc. in the receiving device 52.

Next, another embodiment of the present invention will be described. In the following description, parts common to those in the above-mentioned embodiments are designated by the same reference numerals, and the description thereof will be omitted.

6 to 8, the central axis of the receiving device 52 is vertical when the arm 68 is in the receiving position, that is, in the position where the receiving device 52 is located directly below the workpiece 14 held by the holding device 16. It is fixed to the arm 68 so that. In other words, the angle θ formed by the central axis of the receiving device 52 and the central axis of the rotating shaft 60 in this state is approximately 30 degrees.

Therefore, according to this embodiment, when the receiving device 52 is positioned at the receiving position, the central axis of the receiving device 52 and the falling direction of the workpiece 14 coincide with each other.
The inner diameter of the receiving device 52 can be made as small as possible, and the workpiece 14 can be supported extremely stably by the receiving device 52. Further, as shown in FIG. 8, if the rotation angle α of the arm 68 is 60 degrees or less, the receiving device 52 at the take-out position is still facing diagonally upward, and the workpiece 14 is
It never rolls out from 2. Rather, the receiving device 52
Since the workpiece 14 is tilted appropriately, the operator can
This is convenient for taking out. In addition, the center axis of rotation of the barrel tank 30 is set at 30 degrees to 45 degrees with respect to the vertical axis.
It is preferable to set the medium within the range of 30°C to obtain the effect of stirring the media in the barrel tank 30.
In such a case, the rotation angle α of the arm 68 is preferably in the range of 30 degrees to 60 degrees. If it exceeds 60 degrees, the inclination of the receiving device 52 at the take-out position will increase and there is a risk that the workpiece 14 will fly out. If it is less than 30 degrees, the distance to be moved toward the operator will become smaller, which will reduce work efficiency. There is a risk of damage.

On the other hand, when a large number of barrel processing devices such as those described above are arranged side by side on the right or left side in the state shown in FIG. When the direction of movement of the worker is to the right, the workpiece take-out device 50 is installed on the right side as shown in FIG. It would be good if you could. In such a case, a workpiece retrieval device 50 is installed between the operator and the holding device 16.
Since there are no holes, workability is improved.

Although one embodiment of the present invention has been described above in detail based on the drawings, the present invention can also be applied to other aspects.

For example, the receiving device 52 can be modified in various ways, especially in its inner shape, to match the shape of the workpiece 14, and the foreign matter outlet 74 provided in the receiving device 52 may be provided at the bottom of the receiving device 52, or A plurality of them may be provided.

In the embodiment described above, the receiving device 52 is moved circumferentially about the rotation axis 60 by the moving device 54, but the moving device 54 is configured to move the receiving device 52 linearly. It may be configured.

Further, in the above-described embodiment, the workpiece take-out device 50 is used to receive and take out the workpiece 14 held by the holding device 16, but at the take-out position, the workpiece 14 is removed from the polished one to a new one. Alternatively, the workpiece retrieval device 50 may move a new workpiece 14 directly below the holding device 16, and the holding device 16 may automatically chuck the workpiece 14.

Further, although the barrel tank 30 is configured to be rotated around an axis inclined with respect to the vertical axis, it goes without saying that the barrel tank 30 may be rotated around a vertical axis.

[Brief explanation of the drawing]

1 and 2 are a front view and a partially cutaway side view of a barrel processing device showing an embodiment of the present invention. 3 and 4 are an enlarged side view and a plan view, respectively, of the workpiece take-out device shown in FIG. 1. FIG. 5 is an enlarged partially cutaway view of the receiving device of FIG. 3. Figures 6 and 7 are
FIGS. 2A and 2B are a side view and a front view, respectively, of a receiving device portion in a receiving position, showing another embodiment of the present invention. FIG. 8 is a view corresponding to FIG. 7 in the take-out position. 14: Workpiece, 16: Holding device, 30: Barrel tank, 50: Workpiece take-out device, 52: Receiving device, 5
4: Moving device, 66: Rotating cylinder (actuator), 68: Arm, 72: Elastic member (lining), 74: Foreign matter discharge port.

Claims (1)

[Claims for Utility Model Registration] (1) A barrel that polishes a workpiece by rotating the barrel tank while holding the workpiece in a medium housed in a container-shaped vertical barrel tank. The processing device comprises: a holding device that holds the workpiece in the medium and pulls it out of the barrel tank; and a container-shaped container with an open top end and a foreign matter discharge port, the holding device holding the workpiece a receiving device located directly below the workpiece to receive the workpiece released from the holding device when the workpiece is pulled out of the barrel tank; A barrel processing device equipped with a workpiece retrieval function, comprising: a moving device for reciprocating the loaded workpiece between a reciprocating position and a retrieval position where the workpiece is retrieved by an operator. (2) the moving device is supported so as to be freely rotatable about an axis substantially parallel to the rotation axis of the barrel tank;
A barrel processing device equipped with a workpiece retrieval function according to claim 1, which is a registered utility model, and includes an arm that fixes the receiving device at a tip end thereof, and an actuator that drives the arm to rotate in a reciprocating manner. (3) The receiving device has a cylindrical shape with a bottom and is provided with a rubber lining affixed to the inside of the cylinder with a bottom.
A barrel processing device equipped with a workpiece retrieval function according to item 1 or 2.