JP2583637Y2 - Tool support device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The tool support device according to the present invention is:
For example, it is used to elastically support a deburring tool.

[0002]

2. Description of the Related Art When various metal parts are manufactured by, for example, punching a metal plate with a press working machine, it is inevitable that burrs are formed on the periphery of the punched metal parts. For this reason, the operation of removing the burrs has been conventionally performed using an automatic deburring device incorporating a tool such as a rotary grindstone.

FIG. 4 shows a tool used for such a deburring operation and a supporting device therefor. A grindstone 1 for removing burrs is fixed to the tip of a rotating shaft 2 that rotates at high speed. A blade is fixed around the rotating shaft 2 at an inner portion of the case 3, and is sent into the case 3 through a flexible hose 4 and is compressed by the force of compressed air blown to the blade. The rotation shaft 2 rotates at high speed. Therefore, when the grindstone 1 is pressed against burrs, the burrs are removed.

[0004] The case 3 is supported and fixed to a swing plate 5. That is, the holding pieces 7, 7 are connected to the receiving pieces 6, 6 fixed to the rocking plate 5 by the holding screws 26, 26,
By strongly pressing the case 3 between the sides 6 and 7,
The case 3 is fixed to the rocking plate 5.

A center portion of the swinging plate 5 is pivotally supported by a pivot 8 on a distal end portion (left end portion in FIG. 4) of a support arm 9, and a base end portion of the support arm 9 (right end portion in FIG. 4). ) Is fixed to the support plate 10. The support plate 10 is connected to the moving arm of the automatic deburring device, and moves the support plate 10 according to the outer peripheral shape of the metal plate to be deburred. A tension spring 11 is provided between the oscillating plate 5 and the support arm 9 to give the oscillating plate 5 an elastic force to rotate counterclockwise in FIG.

When deburring the periphery of the metal plate, the grindstone 1 is rotated while the outer peripheral surface of the grindstone 1 is pressed against the periphery. In this state, the swing plate 5
Swings clockwise in FIG. 4 against the elasticity of the tension spring 11, and the grindstone 1 is pressed against the peripheral edge of the metal plate by the elasticity of the tension spring 11.

While the grindstone 1 is pressed against the peripheral edge of the metal plate while rotating, the supporting plate 10 is moved by the moving arm of the automatic deburring device in accordance with the outer peripheral shape of the metal plate to be deburred. Then, burrs formed on the peripheral portion of the metal plate can be removed.

[0008]

SUMMARY OF THE INVENTION The tool supporting device of the present invention allows the moving arm of the deburring device and the control device thereof to be simplified by providing a large degree of freedom in the direction of tool displacement. It is.

In the case of the conventional structure shown in FIG. 4, the whetstone 1 pressed against the peripheral edge of the metal plate connects the swing plate 5 to the support arm 9.
Only swings about the pivot 8 which is pivotally supported on the shaft, the degree of freedom in the direction of displacement is small. Therefore, it is necessary to move the moving arm along the peripheral edge of the metal plate while properly regulating the direction of the support plate 10 relative to the peripheral edge of the metal plate. Because of this,
The control for moving the moving arm is troublesome, and the change of the program when the shape of the metal plate or the like to be deburred changes is troublesome.

On the other hand, when the direction of movement of the moving arm and the direction of the support plate 10 deviate from the normal direction, the movement of the moving arm is performed via the swing plate 5, the pivot 8, the support arm 9, and the support plate 10. There is a possibility that excessive force may be applied to the arm. For this reason, it is necessary to make the rigidity of the automatic deburring device including the moving arm sufficiently large, and the manufacturing cost of the automatic deburring device increases.

The tool supporting device of the present invention has been conceived to solve the above-mentioned disadvantages.

[0012]

According to the present invention, there is provided a tool supporting device, comprising: a supporting plate; an oscillating plate having a tool supporting portion at a center portion provided at an interval between the supporting plate; A part of one of the oscillating plate and the support plate, at least three through holes provided at substantially equal intervals on a circumference centered on the tool support portion; At least three guide rods which are inserted into the holes, and whose ends are fixed vertically to the other of the rocking plate and the support plate, and a state in which each guide rod is inserted inside thereof A first compression spring provided between the other plate and one surface of the one plate, and a portion protruding from the other surface of the one plate at a base end of each guide rod. And a second compression spring provided between the locking portion fixed to the second surface and the other surface.

[0013]

In the tool supporting device of the present invention having the above-described structure, the swinging plate can be elastically displaced in any radial direction about the tool supporting portion. Therefore, when moving the tool along the periphery of the workpiece such as a metal plate,
It is not necessary to consider the direction of the support plate, and the program for moving the support plate can be simplified. Moreover, the degree of freedom of displacement of the tool support provided on the rocking plate is large, and the tool support can be displaced with a light force . In other words, this tool support is
In addition to being displaced in the same direction,
It can be displaced freely. Therefore, even if slightly different shape of the workpiece, to absorb this by rocking plate is elastically displaced,
A large force is prevented from being applied to the portion where the support plate is supported and fixed.

[0014]

1 to 3 show an embodiment of the present invention. The ring-shaped support plate 12 is supported and fixed to the moving arm of the automatic deburring device. The ring-shaped oscillating plate 13 is also provided at an interval from the support plate 12. At the center of the rocking plate 13, a fixing plate 14 constituting a tool support is fixed by screws 15,15.

The fixing plate 14 has a cut 16 in a part thereof, and the inner diameter can be contracted by tightening a fixing screw 17 provided in a direction perpendicular to the cut 16. When fixing the case 3 provided with the rotating shaft 2 to which the whetstone 1 is fixed to the tip (the upper end in FIGS. 1 and 3) to the rocking plate 13, the fixing screw 17 is loosened, and the case 3 is loosened. After being inserted into the inside of the fixing plate 14, the fixing screw 17 is tightened, so that the outer peripheral surface of the case 3 is suppressed by the inner peripheral surface of the fixing plate 14, and the fixing plate 14 is fixed to the outer peripheral surface of the case 3. I do. Thereafter, the fixed plate 14 is screwed to the swing plate 13 with screws 15, 15
And the case 3 is fixed to the rocking plate 13.

A part of the oscillating plate 13 and the fixed plate 14
On the circumference around the case 3 held at the center, six through holes 18, 18 are formed at equal intervals, and inward flange portions 19, 19 are provided at intermediate portions of the respective through holes 18, 18. I have. Each of these inward flange portions 19, 19 has one,
A total of six guide rods 20, 20 are inserted, and screw portions 21, 21 formed at the distal end portions (lower end portions in FIGS. 1 and 3) of each guide rod 20, 20 are part of the support plate 12. Screw holes 2 formed in portions facing the through holes 18
2 and 22, the guide rods 20, 20
Are fixed vertically to the support plate 12. Base end of each guide rod 20, 20 (upper end in FIGS. 1 and 3)
In the portion protruding from the rocking plate 13, heads 23, which are locking portions, are formed integrally with the guide rods 20, 20, respectively.

On the other hand, between one surface (the lower surface in FIGS. 1 and 3) of each of the inward flange portions 19, 19 and the support plate 12,
Six first compression springs 24, 24 are provided inside each of the first compression springs 24, 24 with the guide rods 20, 20 inserted therethrough. Further, the heads 23, 23 formed at the base ends of the guide rods 20, 20, and the inward flanges 19, 1
Second compression springs 25 and 25 are provided between the other surface of 9 and the upper surface of FIGS.

In the case of the tool support device of the present invention configured as described above, the grindstone 1 at the tip of the rotating shaft 2 is not pressed against a workpiece such as a metal plate, so that no external force is applied to the support plate 12. In this case, the inward flange portions 19, 19 move to a position where the elasticity of the first and second compression springs 24, 25 balances, and the support plate 12 and the swing plate 13 move as shown in FIG.
As shown in FIG.

When the grindstone 1 is pressed against the workpiece from this state, the swinging plate 13 swings with respect to the support plate 12 to displace the grindstone 1 with respect to the support plate 12. For example, when the grindstone 1 is displaced clockwise in FIG. 1 as shown by an arrow a in FIG. 1, the first compression spring 24 on the right side of the figure contracts, and the first compression spring 24 on the left side of the figure Grows,
The second compression spring 25 on the right side of the figure extends, and the second compression spring 25 on the left side of the figure contracts, thereby allowing the swinging plate 13 to swing. Conversely, when the grindstone 1 is displaced in the counterclockwise direction in FIG. 1 as indicated by an arrow b in FIG. 1, the first compression spring 24 on the right side of FIG. 24, the second compression spring 25 on the right side of the figure contracts, and the second compression spring 25 on the left side of the figure expands, thereby allowing the swinging plate 13 to swing as shown in FIG. I do.

The first and second compression springs 24 and 25 are provided on the circumference of the case 3 supporting the grindstone 1 as a center.
Since the whetstones 1 are provided at equal intervals, the whetstone 1 can be elastically displaced in any radial direction around the case 3. Therefore, it is not necessary to consider the direction of the support plate 12 when moving the grindstone 1 along the periphery of the workpiece such as a metal plate. Also, when the first and second compression springs 24 and 25 are rocked along with the rocking of the grindstone 1, one of the compression springs is compressed and the other is provided in series with the compression spring. Since the compression spring is extended, the force required to swing the grindstone 1 is small.

Therefore, the program required for moving the moving arm on which the support plate 12 is fixed can be simplified in order to move the grinding wheel 1 along the outer peripheral edge of the workpiece such as a metal plate. That is, the program does not need to consider the directionality of the support plate 12 at all, and it is not necessary to make the positional relationship between the outer peripheral edge of the workpiece and the support plate 12 very strict. .

In addition, the swing plate 13 has a large degree of freedom of displacement, and can be freely displaced by a light force . That is, the whetstone 1
Swings the case 3 supporting the camera in any direction of 360 degrees.
And can be displaced even in the axial direction.
You. Therefore, even if different somewhat the shape of the workpiece such as a metal plate, in addition to the rocking plate 13 is elastically displaced in any direction, if
In some cases , this is absorbed by being displaced in the axial direction of the case 3 to prevent a large force from being applied to the moving arm or the like that supports and fixes the support plate 12.

It should be noted that, contrary to the illustrated embodiment, the through holes 18, 1
8 can be provided on the support plate 12 and the guide rods 20 can be fixed to the swing plate 13 side.

[0024]

The tool support device of the present invention is constructed and operates as described above, so that the rigidity of the automatic deburring device and the like can be reduced and the control program can be simplified. Also, by combining simple parts, it is small and light.
It can be configured in quantity and at low cost.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a view from above of FIG. 1 except for a grindstone and a case.

FIG. 3 is a cross-sectional view showing a state in which a whetstone and an oscillating plate are displaced.

FIG. 4 is a side view showing a conventional device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Whetstone 2 Rotating shaft 3 Case 4 Hose 5 Oscillating plate 6 Receiving piece 7 Holding piece 8 Axis 9 Support arm 10 Supporting plate 11 Tension spring 12 Supporting plate 13 Oscillating plate 14 Fixing plate 15 Screw 16 Cut 17 Fixing screw 18 Through hole DESCRIPTION OF SYMBOLS 19 Inward flange part 20 Guide rod 21 Screw part 22 Screw hole 23 Head 24 First compression spring 25 Second compression spring 26 Holding screw

Claims (1)

(57) [Scope of request for utility model registration] 1. A swinging plate having a tool support portion at a central portion, provided at a distance between the supporting plate and the supporting plate, and one of the swinging plate and the supporting plate And at least three through-holes provided at substantially equal intervals on a circumference centered on the tool supporting portion, and inserted into each of the through-holes. At least three guide rods fixed perpendicular to the other plate of the plate and the support plate, and the other plate and the one plate in a state where each guide rod is inserted inside thereof. A first compression spring provided between the first plate and the other surface, a locking portion fixed to a portion of the guide rod at a base end protruding from the other surface of the one plate, and the other compression spring; A second compression spring provided between the first and second surfaces.