JP2017077587A - Polishing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a polishing device capable of performing easily and quickly deburring on the cut end face of a workpiece without skilled technique, and capable of finishing finely.SOLUTION: A polishing device for polishing and deburring a cut end face Wa of a workpiece W by a polishing wheel 1 driven rotatively around the axis La by rotation means, includes turning means for rotating and driving around an orthogonal wheel center Lb passing an intersection point P between a width direction center cut surface F of the polishing wheel 1 and the axis La.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a polishing apparatus.

  Polishing devices for removing burrs formed on the cutting end surfaces of works such as building materials and pipes are portable polishing devices (see, for example, Patent Document 1) in which a disc brush or cup brush is mounted on a grinder, or polishing cloths. There has been a portable polishing apparatus (see, for example, Patent Document 2) in which a polishing wheel such as a flap wheel or a slit wheel having a piece is attached to a rotary electric tool body with a handle equipped with a small electric motor. Further, there has been an installation type polishing apparatus in which a polishing wheel is attached to a rotating shaft for a polishing wheel provided on a fixed base, and the polishing wheel is rotated around an axis.

JP-A-8-323632 JP 2000-301470 A

However, in the case of a conventional portable polishing apparatus, it is necessary for the operator to hold the polishing apparatus in his hand and perform polishing while following the cut end surface of the workpiece. There was a problem that it was difficult to achieve a stable and beautiful finish without skilled skills.
In addition, the conventional installation type polishing apparatus has a problem that it is very difficult to move the workpiece in various directions when the workpiece is large or long, and it takes a lot of time and labor. There was a problem that it was difficult to finish beautifully without the skills.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a polishing apparatus that can easily and quickly deburr the cut end surface of a workpiece without skilled skills, and that can be finished beautifully.

  In order to achieve the above object, the polishing apparatus of the present invention is a polishing apparatus that polishes a cut end surface of a work by a polishing wheel that is driven to rotate around a shaft by a rotating means to remove burrs. There is provided a turning means for driving to turn around an orthogonal axis passing through the intersection of the center cut surface in the width direction of the grinding wheel and the axis.

  The swiveling means includes a swiveling cylindrical member rotatably provided around the orthogonal axis, and a turning drive source for rotating the cylindrical member around the orthogonal axis. A holding member fixed to the tip of the cylindrical member and holding the grinding wheel via a grinding wheel rotation shaft so as to be rotatable about the shaft, and the rotating means is arranged around the orthogonal shaft center. A transmission rotating shaft that is rotatably inserted into the cylindrical member, a rotational drive source for applying rotational power to the base end portion of the transmission rotating shaft, and a distal end portion of the transmission rotating shaft. A first bevel gear, a second bevel gear meshing with the first bevel gear, and a first power transmission rotating body connected to the second bevel gear via a connecting shaft provided on the holding member. A second power transmission rotating body attached to the polishing wheel rotation shaft provided on the holding member; and the first power transmission rotating body. A flexible power transmission member operatively connected to the force transmitting rotary member and the second power transmission rotary member and at having a.

  Further, the turning means includes a turning shaft-like member provided rotatably around the orthogonal axis, and a turning drive source for rotating the axial member around the orthogonal axis. A holding member fixed to the tip of the shaft-like member and holding the grinding wheel via a grinding wheel rotating shaft so as to be rotatable about the axis, and the rotating means is disposed in the shaft-like member. An air flow path provided, a rotary joint for supplying compressed air to the air flow path, an air motor fixed to the shaft-shaped member or the holding member and supplied with compressed air discharged from the air flow path; A first power transmission rotating body attached to the output shaft of the air motor, a second power transmission rotating body attached to the grinding wheel rotating shaft provided on the holding member, and the first power transmission. Possible to interlock the rotating body and the second power transmission rotating body. And sex power transmission member, those having a.

  According to the present invention, it is possible to easily and quickly deburr the cut end surface of a workpiece. The operator does not need to move the polishing wheel in a complicated manner, and even without skilled skills, polishing can be performed without causing uneven polishing and burrs. Further, it is not necessary for the operator to move the workpiece in a complicated manner, and in particular, a long workpiece, a long bent workpiece, a large and heavy workpiece can be easily and safely beautifully polished. The entire surface of the cut end face can be easily and quickly polished with a small grinding wheel.

It is a figure which shows one Embodiment of this invention, Comprising: (a) is a simplified perspective view, (b) is a schematic diagram. It is a front view which shows an example of a workpiece | work. It is a perspective view which shows the other example of a workpiece | work. It is a principal part sectional side view showing an embodiment of the present invention. It is a principal part sectional top view. It is a principal part cross-sectional side view which shows other embodiment. It is a principal part sectional top view which shows other embodiment. It is a principal part top view which shows the case where the workpiece | work of another example is grind | polished. It is explanatory drawing for demonstrating an effect | action, Comprising: (a)-(h) is explanatory drawing which showed the change of the grinding | polishing direction in steps. It is an operation explanatory view.

Hereinafter, the present invention will be described in detail based on illustrated embodiments.
As shown in FIG. 1, the polishing apparatus according to the present invention includes a cylindrical polishing wheel 1 such as a flap wheel or a slit wheel for polishing a cut end surface Wa of a workpiece W.
The grinding wheel 1 is rotatable around an axis La of the grinding wheel 1 (hereinafter also referred to as the grinding wheel axis La), and an intersection point P between the center cut surface F in the width direction of the grinding wheel 1 and the grinding wheel axis La. Is provided so as to be rotatable (turnable) around an orthogonal axis Lb passing through. In other words, the grinding wheel 1 is provided so as to be rotatable around the turning axis Lb passing through the center of gravity P of the geometric shape of the grinding wheel 1.
Further, the orthogonal axis Lb is horizontal, passes through the end surface center point Q of the cutting end surface Wa, and has a cutting end surface Wa on the same plane (including the cutting end surface Wa) on the processing reference plane J. It is orthogonal. Further, the cut end face Wa (working reference plane J) is a vertical plane.

  The workpiece W is made of metal such as aluminum, stainless steel, iron, brass, copper, titanium, or resin, and is manufactured by a method such as extrusion, drawing, roll forming, or the like. , Pipes and the like.

As shown in FIGS. 2 and 3, the workpiece W has a cutting end surface Wa formed by cutting with a cutting means such as a saw machine or a laser cutting machine, and the cutting end surface Wa has a cutting progress of the cutting means. A burr k is formed in the direction and the cutting direction.
When the cutting end surface Wa is cut orthogonally to the workpiece axis Lw along the longitudinal direction passing through the end surface center point Q, as shown in FIG. 2 (the reference plane J to be processed becomes the workpiece axis Lw). 3 in the case of an orthogonal plane) or when it is cut in an inclined manner with respect to the workpiece axis Lw as shown in FIG. 3 (when the reference plane J to be processed is inclined with respect to the workpiece axis Lw). )
The end surface center point Q of the cutting end surface Wa is X as the workpiece width dimension excluding the burr k of the cutting end surface Wa when viewed from the direction orthogonal to the cutting end surface Wa (working reference plane J), and the burr k of the cutting end surface Wa. When the workpiece vertical width dimension excluding is Y, it means the intersection of the center line Sx in the workpiece horizontal width direction and the center line Sy in the workpiece vertical width direction.
The workpiece W can be a pipe, square tube, circular cross section, rectangular cross section, L cross section, H cross section, U-shaped cross section, etc. 2 and 4 to 7, the workpiece W has a cut end surface Wa formed by cutting perpendicular to the workpiece axis Lw. 3 and 8 to 10, the workpiece W has a cutting end surface Wa formed by cutting that is inclined with respect to the workpiece axis Lw, and the cutting end surface Wa has an elliptical shape.

The polishing wheel 1 is a grit wheel such as a nylon brush wheel that holds a resin wire containing (kneaded) abrasive grains around the polishing wheel axis La, or a strip of sandpaper or a polishing cloth piece radially around the polishing wheel axis La. Flap wheel held, slit-shaped sandpaper or abrasive cloth piece with slits formed into a narrow band and held around the grinding wheel axis La, wire wheel holding metal wire radially around the grinding wheel axis La, etc. It is.
For a soft workpiece W such as aluminum, it is preferable to apply the polishing wheel 1 having a polishing wire made of nylon brush containing abrasive grains, and for a hard workpiece W such as stainless steel, a strip-shaped sand. It is preferable to apply a polishing wheel 1 having paper.

  As shown in FIGS. 4 and 5, the rotating means 2 for rotating the grinding wheel 1 about the axis La and the grinding wheel 1 for rotating (turning) about the horizontal orthogonal axis Lb. Swiveling means 3, work base 9 for supporting the work W horizontally (cut end face Wa is vertical), and distance adjusting means 4 for adjusting the distance between the grinding wheel 1 and the work base 9. And centering means 5 for matching the heights of the end surface center point Q and the orthogonal axis Lb.

The swiveling means 3 includes a swiveling tubular member 30 provided on the support member 10 so as to be rotatable around the orthogonal axis Lb, and a first pulley such as a pulley fixed to the intermediate portion of the tubular member 30 in an outer fitting manner. Rotating power transmission rotator 37, slewing drive source Mb formed of an electric motor and provided on the support member 10, and second slewing power transmission such as a pulley attached (fixed) to the output shaft of the slewing drive source Mb. The rotating body 39, a flexible turning power transmission member 38 such as a belt that interlocks and connects the first turning power transmission rotating body 37 and the second turning power transmission rotating body 39, and the tip of the cylindrical member 30 are fixed. Holding member 6.
The holding member 6 has a grinding wheel rotation shaft 60 that is rotatable around the grinding wheel axis La and that the grinding wheel 1 is detachably attached. The grinding wheel is rotated via the grinding wheel rotation shaft 60. 1 is rotatably held around the axis La.

  The turning means 3 rotates the cylindrical member 30, the holding member 6 and the grinding wheel 1 integrally around the orthogonal axis Lb, for example, at 60 rpm to 180 rpm (turning drive) by the drive of the turning drive source Mb. Let

  The support member 10 has a pair of front and rear support columns 11 and 11 in which a through hole 11d through which the cylindrical member 30 is inserted is formed. Between the inner peripheral surface of the through hole 11d of the support column 11 and the outer peripheral surface 30d of the cylindrical member 30, a turning drive bearing member 36 such as a radial bearing is interposed. Through a thrust bearing 35 that receives a force in the direction along the orthogonal axis Lb (pressing force from the workpiece W) between the front column 11 (11A) and the tip end surface 30e of the cylindrical member 30. Disguise.

  The rotating means 2 includes a transmission rotating shaft 20 that is inserted into the cylindrical member 30 so as to be rotatable around the orthogonal axis Lb, and an electric motor for applying a rotational driving force to the base end portion of the transmission rotating shaft 20. A rotational drive source Ma, a first bevel gear 21 fixed to the tip of the transmission rotating shaft 20 and rotating around an orthogonal axis Lb, and meshed with the first bevel gear 21 and parallel to the grinding wheel axis La A second bevel gear 22 that rotates about a rotation axis Lc (perpendicular to the orthogonal axis Lb), and the second bevel gear 22 are fixed to one end portion so that the holding member 6 can rotate about the rotation axis Lc. The provided connecting shaft 61, the first power transmission rotating body 27 such as a pulley fixed to the other end of the connecting shaft 61 and connected to the second bevel gear 22, and the grinding wheel rotation provided on the holding member 6 A second power transmission rotating body 29 such as a pulley that is attached (fixed) to the end of the shaft 60 and rotates around the grinding wheel axis La, and a first power transmission rotating body 27 and a flexible power transmission member 28 such as a belt for interlockingly connecting 27 and the second power transmission rotating body 29.

  The rotation means 2 rotates the transmission rotating shaft 20 and the first bevel gear 21 around the orthogonal axis Lb by driving the rotational drive source Ma, and the second bevel gear 22, the connecting shaft 61, and the first power transmission. The rotating body 27 is rotated around the rotation axis Lc, and is rotated at high speed (for example, 1000 rpm to 2500 rpm) around the second power transmission rotating body 29, the polishing wheel rotation shaft 60, the polishing wheel 1 and the polishing wheel axis La. Let

The holding member 6 has a storage portion 6a for storing the first bevel gear 21 and the second bevel gear 22, and a connecting shaft 61, and a bifurcated portion 6b for supporting both ends of the rotating shaft 60 for the grinding wheel. doing.
In the holding member 6, a connecting shaft bearing member such as a radial bearing (not shown) that rotatably holds the connecting shaft 61 is provided in a storage portion 6 a provided on the base end side.
A grinding wheel rotary shaft bearing member such as a radial bearing (not shown) that rotatably holds the grinding wheel rotary shaft 60 is provided on the bifurcated portion 6b.

A plurality of rotational drive bearing members 26, 26 such as radial bearings are interposed between the inner peripheral surface of the cylindrical member 30 and the outer peripheral surface of the transmission rotating shaft 20.
Further, a coupling member 25 that connects the base end portion of the transmission rotating shaft 20 and the output shaft of the rotational drive source Ma is provided.
Although not shown, a thrust that receives a force in the direction along the orthogonal axis Lb (pressing force from the workpiece W) between the distal end portion of the transmission rotating shaft 20 and the cylindrical member 30 or the holding member 6. A bearing is interposed.
Although not shown, the rotational speed of the grinding wheel 1 around the axis La and the rotational speed (turning) around the orthogonal axis Lb (the rotational speed of the rotational drive drive source Ma and the rotational drive source Mb) Each has a control unit capable of controlling (setting) the number of rotations).

As shown in FIG. 4, the distance adjusting means 4 is provided with the support member 10 movably (position adjustable) in a direction (front-rear direction) along the orthogonal axis Lb.
The distance adjusting means 4 includes a wheel 41 provided in the lower part on the rear side of the support member 10, a female screw part 42 provided in the lower part on the front side of the support member 10, and a distance adjusting male screwed into the female screw part 42. The screw member 43 and the distance adjusting male screw member 43 are rotatably held around the distance adjusting screw shaft Ld parallel to the orthogonal shaft center Lb, and the distance is fixed to the horizontal installation surface G. Base member 40 and manual distance adjusting handle member 44 attached to one end of distance adjusting male screw member 43. The distance adjusting base member 40 is provided with a traveling surface 40a on which the wheels 41 travel.

  The distance adjusting means 4 is configured such that the operator rotates the distance adjusting handle member 44 around the distance adjusting screw shaft Ld so that the female screw portion 42 is screwed back and forth and the wheel 41 travels back and forth. As a whole, the support member 10 moves back and forth, and the grinding wheel 1 can be moved and positioned (position adjustment is possible) along the orthogonal axis Lb.

The centering means 5 is provided with a work table 9 that can move up and down (position adjustment is possible).
Centering base member 50 fixed to installation surface G, and centering base member 50 for centering that is rotatably held around screw shaft Le for center adjustment parallel to orthogonal axis Lb. A male screw member 53, a manual centering handle member 54 attached to one end of the centering male screw member 53, a female screw member 52 screwed into the centering male screw member 53, and a female screw One end (lower end) portion is pivotally attached to the member 52 and the other end (upper end) portion is pivotally attached to the work table 9, and one end (lower end) portion is pivotally attached to the base member 50. And a second link member 56 pivotally attached to the work table 9 at the other end (upper end).
Further, the first link member 55 and the second link member 56 are arranged so as to cross in an X shape in a side view, and the intermediate portion of the first link member 55 and the intermediate portion of the second link member 56 are mutually connected. The X-shaped link expansion / contraction mechanism 59 is pivotally attached, and the X-shaped link expansion / contraction mechanism 59 is vertically expanded / contracted so that the mounting surface of the work table 9 is parallel to the orthogonal axis Lb (horizontal plane). It can be moved up and down while being held.

  The centering means 5 is such that the operator rotates the centering handle member 54 about the center adjusting screw shaft Le so that the female screw member 52 is screwed back and forth, and the lower end portion of the first link member 55 is The X-shaped link expansion / contraction mechanism 59 vertically expands / contracts as the lower end portion of the second link member 56 approaches / separates, and the work table 9 moves up and down.

Next, another embodiment will be described.
As shown in FIGS. 6 and 7, the turning means 3 includes a turning shaft-like member 31 provided on the column portions 11, 11 of the support member 10 so as to be rotatable around the orthogonal axis Lb, and a shaft-like member. The first turning power transmission rotating body 37 such as a pulley fixed to the intermediate portion of 31 is fitted to the middle portion, the turning drive source Mb formed of the electric motor provided on the support member 10, and the output shaft of the turning drive source Mb. A flexible turning power transmission member 38 that interlocks and connects the second turning power transmission rotating body 39 such as a pulley to be attached (fixed), the first turning power transmission rotating body 37, and the second turning power transmission rotating body 39. And a holding member 6 that is fixed to the distal end portion of the shaft-shaped member 31 and holds the grinding wheel 1 through the grinding wheel rotating shaft 60 so as to be rotatable around the axis La.
The turning means 3 turns the shaft member 31, the holding member 6 and the grinding wheel 1 around the orthogonal axis Lb by driving the turning drive source Mb.

A plurality of turning drive bearing members 36, 36 such as radial bearings are interposed between the inner peripheral surface of the through hole 11 d of the support column 11 and the outer peripheral surface 31 d of the shaft-shaped member 31.
Further, a thrust bearing 35 that receives a force in the direction along the orthogonal axis Lb (pressing force from the workpiece W) between the front column 11 (11A) and the tip end face 31e of the shaft member 31. Is intervening.

  The rotating means 2 includes an air flow path 70 provided in the shaft-shaped member 31 and a rotary for attaching compressed air to the inlet 70b of the air flow path 70 by being attached to the proximal end portion of the shaft-shaped member 31. A joint 71, an air supply source (not shown) such as a compressor or a compression tank for supplying compressed air to the rotary joint 71, an air pipe 72 connected to the outlet 70 a of the air flow path 70, and the shaft-shaped member 31 An air motor Mc to which compressed air discharged from an outlet 70a of the air flow path 70 is supplied via an air pipe 72, and an output shaft center Lm that is attached to the output shaft of the air motor Mc and parallel to the grinding wheel shaft center La. A first power transmission rotating body 27 such as a pulley rotating around, and a pulley rotating around the grinding wheel axis La by being attached (fixed) to the end of the polishing wheel rotating shaft 60 provided on the holding member 6. Second power transmission rotating body 29, first power transmission rotating body 27 and second power A flexible power transmission member 28 such as a belt for interlocking connecting the reach rotator 29, and a.

In the rotating means 2, compressed air from an air supply source (not shown) is supplied to the air motor Mc through the rotary joint 71, the air flow path 70 in the shaft-shaped member 31, and the air pipe 72, and is supplied to the air motor Mc. By driving, the first power transmission rotating body 27 rotates about the output shaft center Lm, and the second power transmission rotating body 29, the polishing wheel rotating shaft 60, and the polishing wheel 1 rotate about the polishing wheel shaft center La.
The air motor Mc may be fixed to the holding member 6. Moreover, the structure of the air motor Mc is free, such as an impeller type, a vane type, a windmill type, and a piston type.
In the air flow path 70, an inflow port 70 b is opened on the base end surface of the shaft-shaped member 31, and an outflow port 70 a is opened on the outer peripheral surface 31 d on the distal end side of the shaft-shaped member 31.

The holding member 6 has a bifurcated portion 6b that supports both ends of the rotating shaft 60 for polishing wheels, and a grinding wheel such as a radial bearing (not shown) that rotatably holds the rotating shaft 60 for polishing wheels on the bifurcated portion 6b. A rotary shaft bearing member is provided.
Although not shown, the number of rotations around the axis La of the grinding wheel 1 and the number of rotations (turning) around the orthogonal axis Lb (the number of rotations of the drive source for rotation drive Ma and the number of rotations of the air motor Mc). And a control unit that can be controlled (set).
Other configurations and operations are the same as those in the embodiment described with reference to FIGS. 1 to 4, and include, for example, a work table 9, a distance adjusting unit 4, a centering unit 5, and the like.

Next, an operation (usage method) of the polishing apparatus of the present invention will be described.
As shown in FIGS. 4 to 7, the work W and the work base 9 are arranged so that the end surface center point Q of the work W is on the orthogonal axis Lb.
In other words, the height of the work table 9 on which the work W is placed horizontally is adjusted by the centering means 5, and the vertical position of the end surface center point Q is aligned with the orthogonal axis Lb.
Further, the workpiece W is moved horizontally in the horizontal direction (left-right direction) orthogonal to the orthogonal axis Lb by an operator or by a left-right direction adjusting means such as an air cylinder or a contact block (not shown). The left and right positions of the end surface center point Q are aligned with the orthogonal axis Lb.

As shown in FIG. 4 to FIG. 7, the processing reference plane J (cut end face Wa) is not limited to the shape perpendicular to the workpiece axis Lw, but as shown in FIG. In the case where Wa) is inclined on the workpiece axis Lw, the end surface center point Q is disposed on the orthogonal axis Lb, and the processing reference plane J is arranged in an orthogonal plane with respect to the orthogonal axis Lb. Set up.
In other words, the workpiece W is arranged so that the processing reference plane J (cut end surface Wa) is parallel to the polishing surface formed by the polishing wheel 1 rotating (turning drive) around the orthogonal axis Lb.

  The end point center point Q is set while preventing rotation of the workpiece W (around the workpiece axis Lw), vertical and horizontal deflection, positional deviation, etc., by a workpiece regulating means such as an air cylinder or a holding block (not shown). The workpiece W is brought close to the grinding wheel 1 and rotated around the grinding wheel axis La by the operator or by a work feeding means such as an air cylinder or a feeding device (not shown) while being kept on the orthogonal shaft center Lb. It is brought into contact with the grinding wheel 1 which is driven and rotated around the orthogonal axis Lb.

When the workpiece W comes into contact with the polishing wheel 1, a polishing member such as a polishing cloth piece or a polishing wire of the polishing wheel 1 comes into contact with the cutting end surface Wa so as to stroke (lick) the cutting end surface Wa as shown in FIG. The polishing range to be polished has a width dimension E of the polishing wheel 1, and the polishing direction Z is a direction parallel to the cut end face Wa and a substantially rotational tangential direction around the axis La of the polishing wheel 1.
Further, since the polishing wheel 1 is rotated (turned and driven) around the orthogonal axis Lb, the polishing direction Z (polishing range) is rotated around the end surface center point Q, and FIGS. It changes gradually as shown in step by step in h).
That is, as shown in FIG. 10, the cut cross section Wa is polished with various polishing directions Z. The polishing region that is uniformly polished by the polishing wheel 1 is a circular region having the end surface center point Q as the center and the width dimension E of the polishing wheel 1 as the diameter.

  On the cutting end surface Wa of the workpiece W, a plurality of burrs k are formed in the cutting progress direction and the cutting direction of a cutting means such as a saw. Therefore, if the polishing direction Z is the same direction or parallel to the cutting progress direction or the cutting direction of the cutting means, there is a risk that burrs may remain, but the polishing wheel 1 rotates around the orthogonal axis Lb ( 9 and FIG. 10, the polishing direction Z changes to various directions, the polishing direction Z coincides with a direction suitable for burr removal, and no burr remains are generated. In addition, polishing unevenness is eliminated and the finish is beautifully uniform. Further, the cutting end face Wa is entirely polished by the polishing wheel 1 making one rotation (one turn) around the orthogonal axis Lb.

When the grinding wheel 1 is worn and the outer diameter is reduced, the distance adjustment means 4 moves the grinding wheel 1 closer to the work table 9 to adjust the longitudinal distance.
When the vertical dimension Y and the horizontal dimension X of the workpiece W are larger than the width dimension E of the polishing wheel 1, the workpiece W is brought into contact with the polishing wheel 1 while moving in the left-right direction on the workpiece table 9 to remove burrs. You may do it.

  In the present invention, the design can be changed, and the support member 10 or the like may be provided so that the orthogonal axis Lb is vertical or inclined. Moreover, you may provide not only on the horizontal installation surface G but on the installation surface G of a vertical surface shape or an inclined surface shape. When the orthogonal axis Lb is vertical or inclined, the work base 9 is provided so that the work W can be supported in the vertical direction. Further, the rotating means 2 and the swiveling means 3 are provided on both ends of the work W, respectively, and the work W is brought into contact with the pair of polishing wheels 1 and 1 from both sides to perform polishing. Also good. The first and second power transmission rotating bodies 27 and 29 and the first and second turning power transmission rotating bodies 37 and 39 are pulleys in the illustrated example, but may be sprockets. The flexible power transmission member 28 and the flexible turning power transmission member 38 are belts (timing belts) in the illustrated example, but may be chains. In addition, the rotational power transmission mechanism portion including the first and second power transmission rotating bodies 27 and 29 and the flexible power transmission member 28 may be configured to transmit rotational driving power using gears. In addition, the turning power transmission mechanism portion including the first and second turning power transmission rotating bodies 37 and 39 and the flexible turning power transmission member 38 may be configured such that turning power is transmitted using a gear. . The centering means 5 may be provided so as to correspond to the support member 10 and the distance adjusting base member 40 (so as to move up and down). The distance adjusting means 4 may be provided so as to correspond to the work table 9 and the centering base member 50 (moving back and forth). The work table 9 is not limited to a work installation surface formed by a plurality of rollers as shown in the figure, but may be a table type in which the work installation surface is formed by a flat surface. The rotational drive source Ma and the turning drive source Mb are not limited to electric motors, and may be air motors.

  As described above, the polishing apparatus of the present invention is a polishing apparatus that removes the burrs k by polishing the cut end surface Wa of the workpiece W by the polishing wheel 1 that is rotationally driven by the rotating means 2 around the axis La. In addition, since there is provided turning means 3 for turning driving around the orthogonal axis Lb passing through the intersection point P between the center cutting surface F in the width direction of the grinding wheel 1 and the axis La, the deburring of the workpiece cutting end surface Wa is provided. Can be done easily and quickly. It is not necessary for the operator to move the polishing wheel 1 in a complicated manner along the cut end surface Wa of the workpiece W, and even without skilled skills, polishing can be performed without causing uneven polishing and burrs. There is no need to move (rotate) the workpiece W in a complicated manner along the grinding wheel 1, and in particular, a long and large workpiece W, a large and heavy workpiece W, and a long and bent workpiece W can be easily and safely. It can be polished beautifully. The entire polishing of the cut end surface Wa can be easily and quickly performed with the small polishing wheel 1.

  Further, the turning means 3 includes a turning cylindrical member 30 that is rotatably provided around the orthogonal axis Lb, and a turning drive source Mb for rotating the cylindrical member 30 around the orthogonal axis Lb. And a holding member 6 that is fixed to the tip of the cylindrical member 30 and holds the grinding wheel 1 through the grinding wheel rotating shaft 60 so as to be rotatable around the axis La, and the rotating means 2 is orthogonal. A transmission rotary shaft 20 inserted through the cylindrical member 30 so as to be rotatable around the axis Lb, a rotational drive source Ma for applying rotational power to the base end of the transmission rotary shaft 20, and a transmission rotary shaft 20 The first bevel gear 21 attached to the tip of the first bevel gear 21, the second bevel gear 22 meshing with the first bevel gear 21, and the second bevel gear 22 are connected via a connecting shaft 61 provided on the holding member 6. The first power transmission rotating body 27, the second power transmission rotating body 29 attached to the grinding wheel rotating shaft 60 provided on the holding member 6, and the first power transmission Since the flexible power transmission member 28 for interlockingly connecting the rolling element 27 and the second power transmission rotating body 29 is provided, the rotational driving and turning driving mechanism of the grinding wheel 1 and the entire apparatus can be simplified and easy. And can be manufactured quickly. The number of revolutions around the axis La of the grinding wheel 1 and the number of revolutions can be easily controlled individually. Easy maintenance and excellent durability. Further, the electrical wiring can be easily arranged.

  Further, the turning means 3 includes a turning shaft member 31 rotatably provided around the orthogonal axis Lb, and a turning drive source Mb for rotating the shaft member 31 around the orthogonal axis Lb. And a holding member 6 that is fixed to the tip end of the shaft-shaped member 31 and holds the grinding wheel 1 through the grinding wheel rotating shaft 60 so as to be rotatable around the axis La. An air flow path 70 provided in the member 31, a rotary joint 71 for supplying compressed air to the air flow path 70, and a compressed air fixed to the shaft-shaped member 31 or the holding member 6 and discharged from the air flow path 70 Is supplied to the air motor Mc, the first power transmission rotating body 27 attached to the output shaft of the air motor Mc, and the second power transmission rotation attached to the grinding wheel rotating shaft 60 provided on the holding member 6. Flexible power transmission that interlocks the body 29, the first power transmission rotating body 27 and the second power transmission rotating body 29 And the member 28, the rotation drive and turning drive mechanism and the entire device of the grinding wheel 1 can be simplified (the double cylinder structure as shown in FIGS. 4 and 5 can be omitted), the number of parts is small, Can be manufactured easily and quickly. The number of revolutions around the axis La of the grinding wheel 1 and the number of revolutions can be easily controlled individually. Easy maintenance and excellent durability. In addition, the electrical wiring and the air piping 72 can be easily arranged.

DESCRIPTION OF SYMBOLS 1 Polishing wheel 2 Rotating means 3 Rotating means 6 Holding member
20 Transmission rotating shaft
21 1st bevel gear
22 Second bevel gear
27 1st power transmission rotating body
28 Flexible power transmission member
29 Second power transmission rotating body
30 Tubular member
31 Shaft-shaped member
60 Rotating shaft for grinding wheel
61 Connecting shaft
70 Air flow path
71 Rotary joint F Center cut surface in the width direction k Burr La Axle Lb Orthogonal axis Ma Rotation drive source Mb Rotation drive source Mc Air motor P Intersection W Work Wa Cutting end surface

Claims (3)

A polishing apparatus that removes burrs (k) by polishing a cut end face (Wa) of a work (W) by a polishing wheel (1) that is rotated around a shaft center (La) by a rotating means (2). In
A swiveling means (3) for swiveling around an orthogonal axis (Lb) passing through an intersection (P) between the center cut surface (F) in the width direction of the grinding wheel (1) and the axis (La). A polishing apparatus comprising: The turning means (3) includes a turning cylindrical member (30) rotatably provided around the orthogonal axis (Lb), and the cylindrical member (30) is connected to the orthogonal axis (Lb). ) A turning drive source (Mb) for rotating around, and the polishing wheel (1) fixed to the tip of the cylindrical member (30) for the polishing wheel so as to be rotatable around the axis (La). A holding member (6) for holding via a rotating shaft (60),
The rotating means (2) includes a transmission rotary shaft (20) inserted through the cylindrical member (30) so as to be rotatable around the orthogonal axis (Lb), and a base end of the transmission rotary shaft (20). A rotational drive source (Ma) for applying rotational power to the part, a first bevel gear (21) attached to the tip of the transmission rotating shaft (20), and the first bevel gear (21 ) And a first power transmission rotator connected to the second bevel gear (22) via a connecting shaft (61) provided on the holding member (6). 27), a second power transmission rotator (29) attached to the rotating shaft (60) for the grinding wheel provided on the holding member (6), and the first power transmission rotator (27) The polishing apparatus according to claim 1, further comprising a flexible power transmission member (28) that interlocks and connects the second power transmission rotating body (29). The swiveling means (3) includes a swiveling shaft member (31) rotatably provided around the orthogonal shaft center (Lb), and the shaft member (31) serving as the orthogonal shaft center (Lb). ) A turning drive source (Mb) for rotating around, and the grinding wheel (1) fixed to the tip of the shaft-like member (31) so that the grinding wheel (1) can rotate around the axis (La). A holding member (6) for holding via a rotating shaft (60),
The rotating means (2) includes an air channel (70) provided in the shaft member (31), a rotary joint (71) for supplying compressed air to the air channel (70), An air motor (Mc) fixed to the shaft-like member (31) or the holding member (6) and supplied with compressed air discharged from the air flow path (70), and attached to an output shaft of the air motor (Mc) The first power transmission rotating body (27), the second power transmission rotating body (29) attached to the grinding wheel rotating shaft (60) provided on the holding member (6), and the first power transmission rotating body (27). The polishing apparatus according to claim 1, further comprising a flexible power transmission member (28) for interlockingly connecting the first power transmission rotating body (27) and the second power transmission rotating body (29).

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