JP3251173B2 - Deburring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deburring apparatus for removing burrs such as rubber adhered to a cylindrical end face of a work, and more particularly to a deburring apparatus which can flexibly cope with various kinds of works having different sizes. .

[0002]

2. Description of the Related Art As a vibration isolator of a vehicle, there is a type in which a rubber material is filled between a metal inner cylinder and an outer cylinder.
Usually, this type of vibration isolator is manufactured by setting an inner cylinder and an outer cylinder in a mold in a predetermined positional relationship, and injecting a rubber material into the mold in that state. However, when the vibration isolator is manufactured in this manner, when the rubber material is filled in a predetermined position between the inner cylinder and the outer cylinder, the rubber material is filled in the end surface of the cylindrical portion such as the inner cylinder or the outer cylinder. Therefore, it is necessary to perform a deburring operation on the end faces of these cylindrical portions after the production is completed.

[0003] As a deburring apparatus used in such a case, for example, an apparatus shown in Japanese Patent Application Laid-Open No. 4-93195 has been developed.

As shown in FIGS. 7 and 8, this deburring apparatus comprises a turntable 1 for rotating and transporting a work W to a processing position, a work supporting device 2 for holding the work W at the processing position, A rotary brush 4 for scraping off burrs attached to the end surface of the cylindrical portion (inner cylinder) 3 is provided. When the work W moves to the processing position on the turntable 1, the chuck 5 of the work support device 2 moves the work W In this state, the rotating brush 4 is pressed against the end surface of the cylindrical portion (inner tube) 3 of the work W to scrape off the burrs attached to the end surface. The turntable 1 is provided with a work mounting jig 6 at a predetermined position on the outer peripheral edge thereof, and an operator or a robot sets the work W conveyed on the line on the jig 6. By doing so, the center of the axis of the work W is always located at a predetermined position above the rotating brush 4 during the rotation conveyance.
The rotating brush 4 is held by an elevating device 7 and a revolving device 8, and is moved toward and away from the workpiece W by the elevating device 7. 9 works W
Is revolved along the circumference of the end face of the cylindrical portion 3. In the drawing, reference numeral 10 denotes a reversing mechanism for reversing the chuck 5 holding the work W when deburring the opposite end face of the work W.

[0005]

However, in the above-mentioned conventional deburring apparatus, there is no problem when continuously deburring a work W of a fixed size. It is difficult to mix and remove burrs. For example, when handling workpieces W having different outer diameters, the jig 6 installed on the turntable 1 must be replaced each time with a workpiece corresponding to the size of the workpiece W. Further, when handling a workpiece W having a different radius of the cylindrical portion (inner cylinder) 3, the rotation center of the rotating brush 4 is shifted from the center of the thickness of the cylindrical portion 3 of the workpiece W, so that a stable flash is obtained. The effect cannot be obtained.

Accordingly, an object of the present invention is to provide a deburring apparatus which can flexibly cope with various kinds of works having different sizes.

[0007]

According to the present invention, as a means for solving the above-mentioned problems, a work placed on a work transfer jig and moving on a line is moved to a work position, where the work cylinder is moved. In a deburring device that removes burrs attached to the end face of the work with a rotating brush, a work moving device that moves the work on the work transfer jig to the rotating brush while installing the rotating brush at a work position is provided. The work moving device is provided with a chuck for gripping the work, and a rotation mechanism for rotating the chuck in a direction around the axis of the gripped work. A controller for controlling according to the radius of the part is provided.
When the workpiece is placed on the workpiece transfer jig and moves on the line, the chuck of the workpiece moving device grips the workpiece, and in this state, the chuck rotates by the distance corresponding to the radius of the cylindrical part of the workpiece. Move in the direction. When the chuck moves a predetermined distance in this way, the rotating brush is pressed against the end face of the work, and in this state, the rotating mechanism rotates the work held by the chuck. In this case, since the workpiece that has moved on the line is directly gripped by the chuck of the moving device, it is possible to flexibly cope with workpieces having different outer diameters, and also, from the workpiece transport jig to the rotating brush. Since the moving distance is controlled to an amount corresponding to the radius of the cylindrical portion of the work, the predetermined position of the rotating brush can be accurately brought into contact with the end face of the cylindrical portion even for works having different cylindrical portions.

[0008] The rotating brush may have brush bristles along a radial direction and rotate along a radial direction of a cylindrical portion of the work. In this case, the brush bristles always move in a certain direction due to contact with the work when removing burrs, which increases the durability of the rotating brush and ensures that burrs are reliably applied to the work with serrations on the end surface of the cylinder. Can be removed.

The type of work including the radius of the cylindrical portion may be given to the work transfer jig, and the control by the controller may be performed based on the type information of the work transfer jig. In this case, since it is not necessary to mark the work, the type of the work can be easily and reliably determined.

[0010]

FIG. 1 shows an embodiment of the present invention.
This will be described with reference to FIG.

A deburring device 11 according to the present invention is used for deburring a work W as shown in FIG. This work W is the inner cylinder 12
And a rubber material 14 filled between the inner cylinder 12 and the outer cylinder 13. A serration 15 for preventing rotation when the inner cylinder 12 is bolted to a mounting portion is provided on both end surfaces of the inner cylinder 12 in a radial direction. Are formed along. The deburring apparatus 11 according to the present invention removes the burrs (rubber material) adhered to the serrations 15 on the end surface of the inner cylinder 12 (the cylindrical part in the present invention; hereinafter, referred to as the cylindrical part 12) at the time of molding. It is designed to be scraped off by the rotating brush 16.

First, the schematic configuration of the deburring apparatus 11 will be described. This apparatus 11 includes a brush unit 17 having a rotary brush 16 for deburring, and a line conveyor 19 mounted on a work transport jig 18. It is composed of a work moving device 20 for moving the work W conveyed above to the position of the rotating brush 16 (work position), and a reversing unit 21 for reversing the work W whose one end face has been deburred. .

In the brush unit 17, a balance arm 24 is rotatably supported by a support shaft 23 installed on a base 22. A brush wheel 25 of the rotary brush 16 is attached to one end of the balance arm 24. A motor 26 for driving a wheel is provided at the other end. The brush wheel 25 of the rotating brush 16 is provided with brush bristles 27 along a radial direction, and when power is transmitted from a motor 26 via a belt 28, the brush wheel 25 rotates in the vertical direction. Also, the balance arm 24
Since the weight of the motor 26 is larger than that of the brush wheel 25, the distance from the support shaft 23 to the brush wheel 25 is set to be larger than the distance from the support shaft 23 to the motor 26. Therefore, the brush wheel 25 has a sufficient vertical stroke.
An air pressure type balance cylinder 29 is installed at the end of the balance arm 24 on the motor 26 installation side, and when a load in the vertical direction is applied to the brush wheel 25, the balance cylinder 29 resists the load. It is designed to generate power. This balance cylinder 2
9 is provided with a pressure adjusting valve 30 (see FIG. 3), and the pressure adjusting valve 30 can appropriately adjust the elastic force against the load. Further, the brush wheel 2 of the balance arm 24 is placed on the base table 22.
The dust collecting hood 31 surrounding the peripheral area 5 is fixedly installed, so that burrs shaved from the work W during the deburring operation do not scatter to the peripheral area of the brush wheel 25. The dust collection hood 31 has a work port 32 for inserting a work W on an upper surface thereof, and a discharge duct 33 connected to a vacuum device (not shown) on a lower surface thereof.

On the other hand, the work moving device 20 is
A guide rail 34 extending in a direction orthogonal to the line conveyor 19 is installed on the upper part of the work 2, and a work holding block 35 is slidably installed on the guide rail 34. The work holding block 35 is moved on the guide rail 34 by a motor (not shown), and the movement, that is, the rotation of the motor is controlled by the controller 3.
6 (see FIG. 1). Work holding block 3 by this controller 36
The control of the moving distance 5 is performed based on the type information of each work W conveyed from the line conveyor 19, and the moving distance is changed according to the radius of the cylindrical portion 12 of the work W. That is, when deburring the cylindrical portion 12 of the work W, the center of thickness T ₀ of the cylindrical portion 12 is set to the center C ₀ of the brush wheel of the rotating brush 16 as shown in FIG.
However, when the workpiece W conveyed along the line is switched to a workpiece (R ₁ to R ₂ ) having a different radius of the cylindrical portion 12, the workpiece W moves in the direction from the work transport jig 18 to the rotating brush 16. is moved by the same distance L ₁ and up to now,
Since the center thickness T ₁ of the cylindrical portion 12 as indicated by a chain line in the figure is displaced from the brush wheel center C ₀ of the rotating brush 16, to eliminate such deviation, as shown in FIG. 5 (B), so that the brush wheel center C ₀ and the wall thickness center T ₁ is controlled to move the distance L ₂ corresponding to the radius R ₂ of the cylindrical portion 12 so as to coincide. Also, in this embodiment,
The type information of each work W is given to the work transfer jig 18 conveyed on the line conveyor 19 in the form of irregularities or identification symbols for identification.
Together with the conveyor 19 at the workpiece transfer position,
Therefore, the type information is read by a sensor 37 installed on the side of the conveyor 19, and the information is input to the controller.

The work holding block 35 has a lift cylinder 39 mounted on a base member 38 supported by a guide rail 34, and a rotary mechanism as a rotating mechanism is mounted on a movable portion of the lift cylinder 39 via a lift plate 40. An upper end of the actuator 41 is fixed, and a chuck 42 for gripping the work W is fixed to a lower end of the rotary actuator 41. The chuck 42 has four chuck claws 44 which are moved in a radial direction by an actuator 43.
Is moved in the diameter reducing direction to grip the outer peripheral surface of the work W, and is moved in the diameter increasing direction to release the grip of the work W. The rotary actuator 41 has a pair of actuator elements 45a and 45b capable of rotating by 180 ° connected in series via a rubber coupling 46, and the rotations of both actuator elements 45a and 45b are combined to form a chuck. 4
2 can be rotated up to 360 ° around the axis of the gripped work W. The rubber coupling 46 reduces the impact due to its rotational inertia when the actuator elements 45a and 45b rotate. As shown in FIG. 6, when handling a work W of a type in which a flange 47 is extended on the outer periphery of the end in the axial direction, a concave relief groove 48 is provided on the upper inside as shown in FIG. The chuck claws 49 may be used.

The reversing unit 21 includes a base 22
The lifting device 50 includes a guide rod 52 fixedly installed on the base 22 and a pair of cylinders 53 and 54 supported by the guide rod 52. Have. Lifting device 5
0, a pair of cylinders 53, 54 are connected in series at their bottoms, and a piston rod 54
a is connected to an end plate 55 attached to the lower end of the guide rod 52, and a work receiving pin 56 is connected to a piston rod 53 a of the upper cylinder 53. Therefore, the lifting device 50 can raise and lower the work receiving pin 56 in two steps by the operation of the two cylinders 53 and 54. Incidentally, 57, 5
Reference numeral 8 denotes a guide plate fixed to the cylinders 53 and 54 and guided by the guide rod 52 when the cylinders 53 and 54 move up and down. On the other hand, the reversing device 51 includes a rotary actuator 60 supported at a predetermined height on the base table 22 via a support column 59, and a chuck 61 attached to the rotary actuator 60. When gripped, the rotary actuator 60 rotates the chuck 61 by 180 ° in the vertical direction. The work receiving pin 56 is moved up and down in two steps by the pair of cylinders 53 and 54 of the elevating device 50.
Is moved to the chuck position of
The work receiving pin 56 is moved to a work receiving position higher than the chuck position by the second step ascending due to the operation.

Although not described in detail, the actuators of the brush unit 17, the work moving device 20, and the reversing unit 21 are appropriately controlled by the controller 36.

In the above configuration, when the work W is placed on the work transfer jig 18 and moves to a predetermined position on the line, the conveyor 19 stops at that position and the work W is attached to the work transfer jig 18. The type information of the work W is detected by the sensor 37, and the information is input to the controller 36. Then, the work transfer jig 18 is
After the chuck 42 of the work moving device 20 being moved upward moves down, the chuck claws 44 grip the work W and move up again (the state of FIGS. 1 and 4), and then the entire work holding block 35 is moved. It moves in the direction of the rotating brush 16 along the guide rail 34. The moving distance is, as described above, the cylindrical portion 12 of the work W, which is one of the type information of the work W.
Therefore, the work gripping block 35 stops moving when the center of the thickness of the cylindrical portion 12 coincides with the center of the brush wheel of the rotating brush 16.

From this state, the work gripping block 35
Of the work W gripped by the chuck claws 44 is inserted into the work opening 32 of the dust collecting hood 31, and the end face of the cylindrical portion 12 of the work W gripped by the chuck 42 is moved to the center of the brush wheel. Is pressed against the brush bristles 27 of the rotating brush 16 (state of FIG. 3). At this time, the brush wheel 25 of the rotating brush 16 is slightly lowered around the support shaft 23 of the balance arm 24, and the work W and the brush bristles 27 are repelled by the elastic force of the balance cylinder 29.
Comes into stable contact. Then, at this time, the brush wheel 25 rotates to remove the burrs at the contact portion of the end of the cylindrical portion 12 of the workpiece W with the brush bristles 27.
The work W is rotated by 0 °, and similar deburring is performed on the entire peripheral area of the end face of the cylindrical portion 12 of the work W.

At this time, the brush bristles 27 of the rotary brush 16 are displaced in the radial direction with respect to the end face of the cylindrical portion 12 of the work W, so that the burrs attached to the end face of the cylindrical portion 12 move along the radial direction. It is shaved off. Therefore, the burrs that have entered the serrations 15 on the end face of the cylindrical portion 12 are easily and reliably removed. In addition, since the brush bristles 27 fall in a fixed direction at this time, the pain of the brush bristles 27 is reduced.

When the deburring of one end face of the work W is completed, the chuck 42 holding the work W
Rises again to a predetermined height, and in this state, the entire work gripping block 35 moves above the reversing unit 21. Then, the cylinder 5 of the elevating device 50 is moved from this state.
The work receiving pins 56 are raised to the second raised position by the actuation of the workpiece receiving pins 3 and 54 (the state shown by the dashed line in FIG. 3).
The chuck 42 on the work holding block 35 side is released,
The work W is transferred to the work receiving pin 56. Subsequently, from this state, the work receiving pin 56 descends to the first raised position, and when the chuck 61 of the reversing device 51 grips the work W, the work receiving pin 56 further descends to the lowest position. 180 ° of the rotary actuator 60 of the reversing device 51
The work W which is rotated and held by the chuck is inverted. Then, when the work W is inverted, the work receiving pin 56 rises to the first raised position to receive the work W from the chuck 61, and the work receiving pin 56 further rises to the second raised position, Then, the work W is delivered to the chuck 42 of the work holding block 35 waiting.

When the inverted work W is transferred to the work holding block 35, the work receiving pin 5
6 moves down to the initial position, and the work holding block 35 moves again to a predetermined work position above the rotating brush 16. Then, the chuck 42 descends again, and the same deburring as described above is performed on the opposite end face of the cylindrical portion 12 of the work W.

When the deburring of the end faces on both sides of the cylindrical portion 12 of the work W is completed in this way, after the chuck 42 is raised, the entire work holding block 35 moves to the initial position above the line conveyor 19, The work W for which deburring has been completed is returned to the work transfer jig 18 again, and the work for the first work W is completed. When the work W that has been deburred is returned to the work transfer jig 18,
The chuck 42 moves up to the initial position again and the next work W
Of the line and the line conveyor 19
Resumes operation.

As described above, in the deburring device 11, the work W on the work transfer jig 18 is gripped by the chuck 42 of the work moving device 20, and the work W thus gripped by the chuck 42 is directly applied to the rotating brush 16. Workpieces with different outer diameters are used for deburring by pressing.
Even in this case, it is possible to flexibly cope without replacing parts. Further, since the moving distance from the work transport jig 18 to the rotating brush 16 (brush wheel 25) is controlled by the controller 36 to a value corresponding to the radius of the cylindrical portion 12 of the work W, the workpieces W having different radii of the cylindrical portion 12 are controlled. Even in this case, the cylindrical portion 12 can be reliably brought into contact with the center of the brush wheel, so that a smooth deburring operation can always be performed. Therefore, the deburring apparatus 11 can flexibly cope with the mixed work W having different sizes in the line.

Further, in the deburring apparatus 11, since the type information of the work W is preliminarily given to the work transfer jig 18, a complicated preparation step such as marking the work W itself is necessary. Therefore, the type of the work can be easily and reliably determined without increasing the cost.

[0026]

As described above, the present invention provides a work moving device for installing a rotary brush for removing burrs at a work position and moving a work on a line work jig to the rotary brush. And this work moving device,
A chuck for gripping the work and a rotation mechanism for rotating the chuck in a direction around the axis of the gripped work are provided, and a moving distance from the work transfer jig to the rotating brush is determined according to a radius of a cylindrical portion of the work. Since the controller for controlling is provided, even workpieces having different outer diameters can be reliably gripped and moved to a predetermined position by the chuck of the workpiece moving device, and workpieces having different radii of the cylindrical portion can be obtained. However, by controlling the moving distance from the work transfer jig to the rotary brush to an amount corresponding to the radius of the cylindrical portion of the work, the predetermined position of the rotary brush can be brought into accurate contact with the end surface of the cylindrical portion. Therefore, according to the present invention, it is possible to flexibly cope with various kinds of works having different outer diameters and different radii of the cylindrical portion.

[Brief description of the drawings]

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

FIG. 2 is a perspective view showing the embodiment.

FIG. 3 is a partially broken side view showing the same embodiment.

FIG. 4 is a partially broken plan view showing the same embodiment.

FIG. 5 is a schematic plan view showing the embodiment.

FIG. 6 is a partial sectional side view showing another embodiment of the present invention.

FIG. 7 is a partial cross-sectional side view showing a conventional technique.

FIG. 8 is a perspective view showing the same technique.

[Explanation of symbols]

 11: Deburring device, 12: Cylindrical portion, 16: Rotating brush, 18: Work transfer jig, 20: Work moving device, 36: Controller, 41: Rotary actuator (rotary mechanism), 42: Chuck, W: Work.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B24B 9/00 602

Claims (3)

(57) [Claims] 1. A deburring device for moving a work placed on a work transfer jig and moving on a line to a work position, and removing burrs attached to an end surface of a cylindrical portion of the work therewith by a rotary brush. A work moving device for moving the work on the work transfer jig to the rotating brush is provided while the rotary brush is installed at the work position, a chuck for gripping the work, and a chuck for gripping the work. A rotating mechanism for rotating the work in a direction around the axis of the work, and a controller for controlling a moving distance from the work transfer jig to the rotary brush according to a radius of a cylindrical portion of the work. Taking device. 2. The deburring apparatus according to claim 1, wherein the rotating brush has brush bristles along a radial direction and rotates along a radial direction of a cylindrical portion of the work. 3. The work transfer jig is provided with work type information including a radius of a cylindrical portion, and control by the controller is performed based on the work transfer jig type information. 3. The deburring apparatus according to 1 or 2.