JPH06650U - Polishing equipment - Google Patents

Abstract

(57) [Summary] [Object] The present invention relates to a polishing device for polishing the surface of a product having a curved surface, and its object is to polish a wide area in a short time. [Structure] A first rotating shaft is attached to an upper end portion of a column protruding from a base, a first arm is fixed to the first rotating shaft, and the first rotating shaft is arranged in a direction perpendicular to the first arm. , A second arm attached so as to be movable along the first arm, and two protrusions provided at an intermediate portion of the second arm and parallel to the first arm. , A roller is rotatably arranged at the tip of the third arm, a belt-shaped polishing member is stretched between the rollers, and one of the rollers is attached to the roller. A polishing device characterized in that a rotary drive source is attached to the.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a polishing device for products, and more particularly to a polishing device suitable for polishing the surface of a product having a curved surface (for example, a helmet or a spherical object).

[0002]

[Prior art]

 As an example of a conventional polishing apparatus, Japanese Patent Laid-Open No. 10759/1991 is known. More specifically, three polishing robots are movably arranged around the body to be polished. A polishing tool unit is held at the arm tip (wrist) of the polishing robot, and a polishing tool (polishing brush) that performs polishing by rotation is rotatable on the polishing tool unit. Is attached to.

Explaining the operation, the polishing brush is rotated while supplying water to the polishing brush, and further the arm is rotated to polish the surface of the vehicle body.

[0004]

[Problems to be solved by the device]

 However, in the above-mentioned prior art, since polishing is performed while rotating the cylindrical polishing brush or rotating the wheel-type polishing brush, it is suitable for polishing a flat surface.ゝ It was not suitable for polishing curved surfaces.

That is, in both the cylindrical polishing brush and the wheel-type polishing brush, the area of the brush that contacts the vehicle body is small, and the polishing time is long. . The present invention aims to solve the above problems.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention attaches a first rotating shaft to the upper end of a supporting column projecting on a base, and fixing the first arm to the first rotating shaft, with respect to the first arm. Is arranged at a right angle and has a second arm attached so as to be movable along the first arm, and is in the middle of the second arm and parallel to the first arm. A roller is rotatably disposed at the tip of the two third arms protruding in this manner, and a belt-shaped polishing member is stretched between the rollers to attach it to each roller. The gist is that a rotary drive source is attached to one of the rollers.

[0007]

【Example】

 An embodiment of the present invention is shown in FIGS. 1 to 4 and described in detail below. A column 2 is projected on the upper surface of the base 1, and a rotary drive source 3 is fixed near the upper end of the column 2. A first arm 4 is attached to the rotary shaft (not shown) of the rotary drive source 3. Further, a ball screw mechanism 5 or the like is arranged on the first arm 4 in a direction perpendicular to the first arm 4 so that the second arm 4 can move along the first arm 4. 6 is attached. Reference numeral 5a is a drive source for operating the ball screw mechanism 5. A rotary drive source 7 is fixed to an intermediate portion of the second arm 6 and is fixed to a rotary shaft 8 of the rotary drive source 7, and a first roller having gear-shaped irregularities formed on the outer periphery thereof. The polishing tool tension adjusting mechanism 10 having -9 is fixed.

The first roller 9 and the rotary drive source 7 are biased rearward by an elastic member 11 and a polishing tool 12 is stretched. Further, as shown in FIG. 3 (a), an air cylinder 11a may be arranged in place of the elastic member 11 to keep the tension of the polishing tool 12 constant.

Further, third arms 13 and 14 are fixed to both sides of the polishing tool tension adjusting mechanism 10 fixed to the intermediate portion of the second arm 6. Similar to the second arm 6, the third arms 13 and 14 are arranged at right angles to the second arm 6 and are mounted so as to be movable along the second arm 6. May be. A wide range of polishing (polishing) can be performed by the expansion amount of the third arms 13 and 14. Further, second rollers -15 and 16 are rotatably arranged at the tips of the third arms 13 and 14, respectively. A band-shaped polishing tool 12 is wound around the first roller 9 and the two second rollers-15 and 16.

On the other hand, a work support shaft 17 on which a work W to be ground is mounted is rotatably driven by a rotary drive source 18 on the upper surface of the base 1 and about the axis of the polishing tool tension adjusting mechanism 10. It is arranged. The work support 17 is only required to rotate, but in order to further improve workability, the work support 17 can be rotated and moved up and down by using a ball spline shaft below the work support 17. Good.

Next, the operation will be described. The belt-shaped polishing tool 12 is rotated by the rotary drive source 7, the first arm 4 is rotated, and the work support shaft 17 is further rotated to polish the work W. When the work W has a curved surface with no unevenness, the second arm 6 is advanced to move the strip-shaped polishing tool 12 to the work W as shown in FIGS. Can penetrate deeply and polish a wide area. Reference numeral 4a is a counter weight for balancing the first arm 4.

FIGS. 7 to 9 show a second embodiment of the present invention, in which the third arms 23 and 24 are rotatable around the second arm 6 about the rotary shafts 19 and 20. In addition to being pivotally connected, one end thereof is connected by an air cylinder 21, and the opening / closing amount of the third arms 13 and 14 (distance from the second arm 6 to the work W) is shown in FIGS. 8 and 9. It can be changed as described above. With this structure, the ball screw mechanism 5 used in the first embodiment can be omitted, and the cost can be reduced.

[0013]

[Effect of device]

 According to the present invention, the first rotating shaft is attached to the upper end of the support column protruding from the base, the first arm is fixed to the first rotating shaft, and the first rotating shaft is arranged in the direction perpendicular to the first arm. The second arm is attached so that it can be moved along the first arm, and the second arm is provided so as to project in the middle part of the second arm and in parallel with the first arm. A roller is rotatably arranged at the tip of the two third arms, a belt-shaped polishing member is stretched between the rollers, and one of the rollers is attached. Since the rotary drive source is attached to the roller, a large area can be polished (polished), and polishing (polishing) can be performed in a short time.

[Brief description of drawings]

FIG. 1 is an external perspective view of a first embodiment of the present invention.

FIG. 2 is a plan view of FIG.

3A is a plan view showing the inside of the polishing tool tension adjusting mechanism of FIG. 2, and FIG. 3B is a plan view showing the inside of another embodiment of FIG. 3A.

FIG. 4 is a front sectional view taken along the line AA of FIG.

5 is an operation explanatory view when the second arm in FIG. 2 is in a retracted position.

FIG. 6 is an operation explanatory view when the second arm in FIG. 2 moves forward.

FIG. 7A is a plan view of a second arm according to a second embodiment of the present invention,
(b) is a view on arrow E of (a).

8 is an operation explanatory view when the third arm of FIG. 7 is expanded to the maximum.

9 is an operation explanatory view when the third arm of FIG. 7 is opened to the minimum.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 base 2 support | pillar 3 rotation drive source 4 1st arm 5 ball screw mechanism 6 2nd arm 7 rotation drive source 8 rotating shaft 9 1st roller 10 polishing tool tension adjusting mechanism 11 repellent Member 11a Air cylinder 12 Polishing tool 13 Third arm 14 Third arm 15 Second roller 16 Second roller 17 Work support shaft 18 Rotational drive source 21 Air cylinder 23th 3 arm 24 3rd arm

Claims (1)

[Scope of utility model registration request] 1. A first rotating shaft is attached to an upper end portion of a column projectingly provided on a base, a first arm is fixed to the first rotating shaft, and the first rotating shaft is arranged in a direction perpendicular to the first arm. The second arm is attached so that it can be moved along the first arm.
A roller is rotatably arranged at the tip of two third arms protruding in the middle of the arm and parallel to the first arm, and each roller is rotatably mounted. − Place a strip-shaped polishing member between the
A polishing device, wherein a rotary drive source is attached to any one of the rollers.