JPH0740225A - Automatic work processing device using brush - Google Patents

Abstract

PURPOSE:To eliminate dispersion of a projection amount of a brush processing a work and control the brush quantitatively. CONSTITUTION:When the head end of a brush 32 held by a first holding plate 34 is worn, a first shaft 38 connected to the first holding plate 34 is moved in the shaft direction by a correction mechanism part 80, and a projection amount L from a second holding plate 35 on the head end of the brush 32 is automatically corrected to a specified value.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work automatic processing apparatus for deburring or chamfering the surface of a work by rotating a brush.

[0002]

2. Description of the Related Art Burrs are generated in punching and machining of metal materials or resin materials, so it is necessary to carry out burr removal work. Examples of conventional burr removal work include shot blasting, in which steel particles collide with the surface of the work by air pressure and rotating blades, and barrel polishing in which the work is put into a barrel-shaped container that contains the abrasive and the container is rotated. Are known.

A method of removing burrs after punching a metal plate or a resin plate with a wire brush or a resin brush has been conventionally performed. 19 to 21 show a conventional deburring tool using a wire brush. In FIG. 19, reference numeral 1 denotes a deburring tool. Deburring tool 1
Has a brush 2 bundled with a predetermined diameter. The root portion of the brush 2 is caulked by a concave metal fitting 4.

The metal fitting 4 at the base of the brush 2 is held by a brush holder 6 via a set bolt 7. A plurality of brushes 2 are attached to the brush holder 6 at regular intervals in the circumferential direction. The vicinity of the outer periphery of the tip of the brush 2 is slidably held by a holder cover 8. The holder cover 8 is connected to the shaft 12 via the holder body 10. A guide bar 12a is formed at the center of rotation of the shaft 12. The guide bar 12a is slidably fitted in the central portion of the brush holder 6.

The holder body 10 has a plurality of elongated holes 14 extending in the axial direction. The long holes 14 are arranged at equal intervals in the circumferential direction. In the long hole 14, the brush holder 6
An adjusting bolt 16 that is screwed with is inserted. When the brush holder 6 is moved to the holder cover 8 side along the guide bar 12a, the protrusion amount (trim length) L of the brush 2 from the holder cover 8 is changed.

In such a deburring tool 1, the shaft 12 is rotationally driven around the axis by a motor (not shown), and the tip of the rotating brush 2 is the work 18.
Can be pressed against. The work 18 is, for example, a metal plate punched by a press die, and has a burr at the punched portion. The burr on the work 18 is removed by contact with the rotating brush 2.

[0007]

However, as shown in FIG.
The following problems are present in the deburring tool shown in FIGS.

(1) In the deburring tool 1, the protrusion length L of the brush 2 has a great influence on the processing accuracy of the work 18. However, since the protrusion length L is manually adjusted by the operator,
There is a problem that the protrusion length L after the adjustment has a large variation and the processing accuracy of the work 18 is not constant.

(2) When deburring is performed using only a specific part of the tip of the brush 2, the tip of the brush 2 is unevenly worn, resulting in variations in machining accuracy. Further, even if the brush 2 is new, if the tip portion is cut with a cutter or the like, as shown in FIG. 19, the central portion 2a of the tip surface of the brush becomes concave and the tip surfaces cannot be evenly aligned. . Therefore, even when a new brush 2 is used, there is a problem in that the processing accuracy varies greatly.

(3) Since the protrusion length L of the brush 2 must be adjusted each time the amount of wear of the brush 2 exceeds a predetermined value, it is necessary to secure an operator who performs the adjustment each time, and the production is increased. There is also the problem of poor sex.

In view of the above problems, it is an object of the present invention to provide a work automatic processing apparatus which eliminates the variation in the protruding length of the brush and enables quantitative brush management.

[0012]

To achieve this object, an automatic workpiece processing apparatus using a brush according to the present invention is
It is configured as follows.

(1) A brush which is bundled in a predetermined diameter and whose tip portion can contact the work held by the work holding means,
A first holding plate that holds the root portion of the brush, a second holding plate that slidably holds the tip outer peripheral portion of the brush, and a first shaft that is connected to the first holding plate. A second shaft that is arranged concentrically with the first shaft and that is connected to the second holding plate via a guide rod into which the first holding plate is slidably fitted; A rotation driving unit that rotationally drives the second shaft around the axis, and the first shaft is moved in the axial direction to correct the protruding length of the tip of the brush from the second holding plate to a predetermined value. And a correction mechanism section.

(2) A brush which is bundled in a predetermined diameter and whose tip portion can contact the work held by the work holding means,
A first holding plate that holds the root portion of the brush, a second holding plate that slidably holds the tip outer peripheral portion of the brush, and a first shaft that is connected to the first holding plate. A second shaft that is arranged concentrically with the first shaft and that is connected to the second holding plate via a guide rod into which the first holding plate is slidably fitted; Rotation driving means for driving the second shaft to rotate about the axis, and a dressing mechanism portion for correcting the tip of the brush into a predetermined shape by polishing with a grindstone,
A correction mechanism unit that moves the first shaft in the axial direction and corrects the protrusion amount of the tip of the brush from the second holding plate to a predetermined value.

(3) A brush which is bundled in a predetermined diameter and whose tip portion is in contact with the work held by the work holding means,
A first holding plate that holds the root portion of the brush, a second holding plate that slidably holds the tip outer peripheral portion of the brush, and a first shaft that is connected to the first holding plate. A second shaft that is arranged concentrically with the first shaft and that is connected to the second holding plate via a guide rod into which the first holding plate is slidably fitted; A rotation drive unit that rotationally drives the second shaft around the axis, and the first shaft is moved in the axial direction to correct the amount of protrusion of the tip of the brush from the second holding plate to a predetermined value. It is provided with a correction mechanism section and a rotation mechanism section for rotation for rotating the brush around the axis.

[0016]

In the work automatic processing apparatus using the brush thus constructed, the following operation is performed.

In the configuration (1), when the brush is worn, the correction mechanism moves the first shaft in the axial direction, and the first holding plate holding the root of the brush is pushed out toward the work. . As a result, the protruding length of the tip of the brush from the second holding plate increases, and the protruding length is automatically corrected to a predetermined value.

In the configuration of the above (2), since the tip of the brush can be ground by a grindstone to correct it into a predetermined shape, even if the brush is processed using a specific portion of the tip of the brush, It is possible to eliminate the machining of the workpiece in the state of uneven wear. Therefore, it is possible to remarkably improve the processing accuracy of the work even with the processing using a brush.

In the structure of (3), the rotation mechanism for rotation can rotate the brush around the axis. Since the rotational driving force of the second shaft is transmitted to the second holding plate via the guide rod, the brush revolves around the second shaft by the second holding plate and the rotation mechanism for rotation is provided. Will rotate on its own. Therefore, it becomes possible to remove burrs that cannot be removed only by the revolution.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a work automatic processing apparatus using a brush according to the present invention will be described below with reference to the drawings.

First Embodiment FIGS. 1 to 12 show a first embodiment of the present invention. 4 to 6 show the entire work automatic processing apparatus 30. The work automatic processing apparatus 30 has a brush unit 31 including brushes 32 made of metal, resin, or the like, which are bundled in a predetermined diameter. The brush unit 31 is
The brush 32, the first holding plate 34, the second holding plate 35, the guide rods 44, 46 and the like are included. The root of the brush 32 is caulked by a concave metal fitting 34.
The root of the brush 32 is held by the first holding plate 34. The brush 32 is prevented from coming off from the first holding plate 34 by tightening a set screw 36 screwed to the first holding plate 34.

The first holding plate 34 is connected to the first shaft 38. A second shaft 40 is provided on the outer circumference of the first shaft 38. The first shaft 38 and the second shaft 40 are concentrically arranged, and the first shaft 38 is axially movable with respect to the second shaft 40. A flange 42 is attached to the tip of the second shaft 40.

The flange 42 has two types of guide rods 4
4, 46 are connected via bolts 47, 49.
One guide rod 44 has a larger diameter than the other guide rod 46. Four guide rods 44 are provided at regular intervals in the circumferential direction. The guide rod 46 is arranged outside the guide rod 44. The guide rod 46 is
Similar to the guide rods 44, four guide rods 44 are provided at regular intervals in the circumferential direction. The guide rod 4 is provided on the first holding plate 34.
Guide holes 48 and 50 are formed through which 4 and 46 are inserted.

A second holding plate 35 is connected to the tips of the guide rods 44 and 46 via bolts 54 and 56. Eight guide bushes 58 are provided on the second holding plate 35.
Is installed. The guide bushes 58 are arranged at equal intervals in the circumferential direction. Each guide bush 58 has
The brush 32 is inserted. Brush 32 and bush 5
8 is relatively movable in the axial direction.

The second shaft 40 is rotatably held by a spindle case 62 via a bearing 60. A toothed pulley 64 is attached to the other end of the second shaft 40. A brush rotation motor 66 as a rotation driving unit is arranged on the side of the second shaft 40. The brush rotation motor 66 is attached to the spindle case 62 via a frame 68.

A toothed pulley 70 is attached to the output shaft of the brush rotating motor 66. The toothed pulley 70 of the brush rotation motor 66 and the toothed pulley 64 of the second shaft 40 are connected via a toothed belt 72.
The rotation driving force of the brush rotation motor 66 is transmitted to the second shaft 40 via the toothed belt 72, and the rotation driving force of the second shaft 40 holds the brush 32 via the guide rods 44 and 46. It is adapted to be transmitted to the first holding plate 34.

At the other end of the first shaft 38, the correction mechanism 8
0 is connected. The correction mechanism section 80 includes a bearing 82, a housing 84, a nut 86, a linear motion bearing 88, a rail 90, a ball screw 92, and a stepping motor 94. The housing 84 is attached to the other end of the first shaft 38 via a bearing 82. Housing 8
4, a nut 86 is attached. A linear motion bearing 88 is attached to the nut 86.

The linear motion bearing 88 is slidably mounted on a rail 90 attached to an arm portion 69 of the frame 68. A female screw 87 is formed on the nut 86. A ball screw 92 is screwed into the female screw 87 of the nut 86. The ball screw 92 is connected to the output shaft of a stepping motor 94 fixed to the arm 69.

The stepping motor 94 is a control panel 100.
It is designed to rotate by the command pulse from.
When the stepping motor 94 rotates, the ball screw 92
Housing 84 coupled to nut 86 by rotation of
Is designed to move. When the housing 84 moves, the first shaft 38 moves in the axial direction, and the second holding plate 5 moves.
The protrusion amount L of the brush 32 from 2 changes.

At a position facing the brush unit 31,
Measuring means 102 for correcting the protrusion length L of the brush 32
Is provided. 7 and 8 show the measuring means 102.
Is shown. The measuring means 102 includes a housing 104,
Rod 106, compression spring 108, linear motion bearing 1
It has 10, a sensor 112, and a contactor 114. The housing 104 is fixed to a frame of a dressing mechanism section 130 described later. A rod 106 is held in the housing 104 via a linear motion bearing 110 so as to be movable in the axial direction.

The rod 106 is biased in one direction by a compression spring 108 housed in the housing 104. The tip of the rod 106 projects outward from the housing 104, and the contact 114 is attached to this tip. A flange 107 is formed on the rod 106, and the flange 107 is the compression spring 10.
The urging force of 8 constantly contacts the sensor 112.
When the tip of the brush 32 comes into contact with the contact 114, the flange 107 is moved by the retracting of the rod 106.
2, the contact state of the brush 32 is detected.

In this embodiment, the tip of the brush 32 is brought into contact with the contact 114 of the measuring means 102 in advance, the forward distance is indirectly calculated by the number of pulses output to the stepping motor 94, and then the brush 32 is used. Is retreated by the stepping motor 94 to indirectly calculate the retreat distance from the number of pulses, and the protrusion amount of the brush 32 is corrected by the difference between the advance distance and the retreat distance.
2 may have a length measuring function to correct the protrusion amount of the brush 32.

9 and 10 show the work holding means 120 for holding the work 20. The work holding means 120 has a chuck portion 122, a motor 124, and a turning unit 126. The chuck portion 122 is configured to hold the work 20 from the inside by, for example, a claw (not shown) whose diameter is expanded by hydraulic pressure. The work 20 held by the chuck part 122 has a motor 124.
It is possible to rotate around the axis. Motor 1
24 is adapted to operate appropriately according to the type of processing of the work 20.

The chuck part 122 includes a turning unit 126.
It is posted on. The revolving unit 126 has a hydraulic cylinder 127, and the chuck portion 122 is horizontally rotated by an angle θ when the rod of the hydraulic cylinder 127 expands and contracts.

A dressing mechanism section 130 is arranged at a position facing the brush 32. The dressing mechanism section 130 is
Grindstone 132, spindle 134, spindle case 13
6. It has a motor 138. The spindle 134 is
It is rotatably held by the spindle case 136 via a bearing (not shown). A motor 138 is attached above the spindle case 136 via a base 131.

At one end of the spindle 134, the brush 32
A grindstone 132 for polishing the tip of the is attached. A pulley 133 is attached to the other end of the spindle 134. A pulley 135 is attached to the output shaft of the motor 124. The pulley 133 and the pulley 135 are connected via a belt 137.

The spindle case 62 that supports the second shaft 40, the brush rotation motor 66, and the correction mechanism section 80 are connected via a frame 68, and as shown in FIG. It is fixed to the table 140. The first table 140 is for the Y-axis servo motor 1
It is movable in the Y-axis direction (left-right direction) by rotation of a ball screw (not shown) connected to 42. The first table 140 is fixed to the second table 144. The second table 144 is used for the X-axis servo motor 1
A ball screw (not shown) connected to the shaft 46 is movable in the X-axis (front-back direction).

The Y-axis servo motor 142 and the X-axis servo motor 146 are numerically controlled (NC control) by the control panel 100. Work 2 on the control panel 100
A command value for moving the first table 140 and the second table 144 according to the type of 0 is input in advance. Thereby, the rotation amounts of the Y-axis servo motor 142 and the X-axis servo motor 146 are controlled, and the first table 140 and the second table 144 are positioned at predetermined positions.

The works 20 are stocked in a work supply unit 150 fixed to the base side. The works 20 stocked in the work supply unit 150 are conveyed by the loader 152 to the work holding means 120. The loader 152 includes a chuck hydraulic cylinder 154, an advancing / retreating hydraulic cylinder 156, and a turning actuator 158.

A coolant tank 162 is attached to the side surface of the base 160. Coolant tank 162
When processing the work 20 with the brush 32,
A cooling liquid that cools the processed portion of the work 20 is stored. The cooling liquid in the coolant tank 162 is pumped up by the pump unit 164 and supplied to the work 20, and after cooling the work 20, is returned to the coolant tank 162 again. Pump unit 1
A magnetic separator (not shown) that collects chips and the like mixed in the cooling liquid by magnetic force is incorporated in the 64.

An oil tank 166 is attached to the side surface of the base 160 adjacent to the coolant tank 162. The oil tank 166 stores the hydraulic oil supplied to the above-described hydraulic cylinders and the like. Hydraulic oil
It is supplied to each hydraulic equipment by a hydraulic pump unit 168 attached to the upper surface of the oil tank 166.

Next, the operation and action of the automatic processing apparatus using the above brush will be described. The work automatic processing apparatus 30 can be applied to various works,
In this embodiment, an example in which the work 20 is applied to a planetary ring in which gears are formed on the inner peripheral surface will be described.

When the work 20 is supplied to the work supply unit 150, the work 20 is gripped by the claws of the loader 152. When the grip of the work 20 is confirmed, the work 20 is conveyed to the work holding means 120 by the loader 152. When the inner peripheral surface of the work 20 is chucked by the chuck portion 122 of the work holding means 120, the loader 15
The second pawl is opened, and the loader 152 retracts to its original position.

When the work 20 is held by the chuck portion 122 of the work holding means 120, the turning unit 126 operates and the chuck portion 122 turns in the horizontal direction by a predetermined angle. At the same time, the Y-axis servo motor 142 and the X-axis servo motor 146 are activated, and the first table 1
40 and the second table 144 move according to the command value taught in advance, and the brush unit 31 is positioned at a predetermined position.

When the positioning of the work 20 and the brush 32 is completed, the work 20 is rotated around the axis by the motor 124, and the brush unit 31 having the brush 32 is started to be rotated by the brush rotation motor 66. In this state, as shown in FIG.
The outer peripheral portion of the tip of the workpiece contacts the inner peripheral end portion of the work 20, and the inner peripheral end portion of the work 20 is ground by the contact with the metal brush 32.

The first holding plate 34 for holding the brush 32 and the second holding plate 3 for holding the outer peripheral portion of the tip end of the brush 32.
Since 5 is rotating at high speed and the work 20 is rotating around the axis, the inner peripheral surface of the work 20 can be chamfered. In this state, the protrusion amount L of the brush 32 from the second holding plate 35 is kept at a predetermined value,
The chamfer width can be suppressed within a predetermined range. When chamfering the work 20, a cutting fluid (cooling fluid) is supplied to the chamfered portion. As a result, overheating of the chamfered portion is prevented, and rising of the chips caused by the chamfering is prevented.

When the chamfering process of the work 20 by the rotation of the brush 32 is completed, the rotation of the work 20 by the motor 124 is stopped. At the same time, the turning unit 126 operates, the chuck portion 122 turns backward in the horizontal direction by a predetermined angle, and the workpiece 20 returns to the position before processing. Further, the Y-axis servo motor 142 and the X-axis servo motor 146 also rotate in the reverse direction, and the brush unit 31 is returned to the original position by the movement of the first table 140 and the second table 144.

When the chamfering process is completed, the work 20 held by the chuck portion 122 of the work holding means 120 is
It is gripped by the claws of the loader 152. When the gripping of the work 20 by the loader 152 is confirmed, the chuck unit 12
2, the chuck of the work 20 is released,
Is conveyed to the work unloading section 151 by the loader 152. The work 20 transported to the work unloading unit 151 is
Then, it is supplied to another process.

The brush 32 for processing the work 20 is worn away as the number of times of use increases, and the second holding plate 3 of the brush 32 is worn.
The protrusion amount L from 5 changes. When the protrusion length L of the brush 32 changes, the polishing amount of the work 32 changes,
There is a problem in that the machining accuracy of the work 32 varies greatly. Therefore, in this embodiment, in order to cope with this, when the wear of the brush 32 reaches a predetermined value, the amount of protrusion of the brush 32 from the second holding plate 35 is corrected.

The correction of the protrusion amount L of the brush 32 from the second holding plate 35 is performed as follows. When it is determined by the number of times the brush 32 has been used that the wear amount of the brush 32 has reached the predetermined value, the Y-axis servo motor 142 and the X-axis servo motor 146 are rotated by the correction start signal, and the first table 140 and the first table 140 are rotated. The movement of the second table 144 causes the brush 32 of the brush unit 31 to be positioned at a predetermined position. When the brush 32 is positioned at a predetermined position, the stepping motor 94 of the correction mechanism unit 80 is activated, and the nut 86 is moved by the rotation of the ball screw 92. Since the linear motion bearing 88 mounted on the rail 90 is attached to the nut 86, the nut 86 moves only in the axial direction without rotating.

Since the housing 86 attached to the first shaft 38 is connected to the nut 86, the nut 86
The first shaft 38 moves in the axial direction with the movement of, and the first holding plate 34 attached to the first shaft 38 advances. When the first holding plate 34 moves forward, the brush 32 moves forward and the protrusion length L of the brush 32 from the second holding plate 35 becomes large. When the protrusion amount L of the brush 32 from the second holding plate 35 becomes large, the tip of the brush 32 comes into contact with the contact 114 of the measuring means 102.

The tip of the brush 32 comes into contact with the contact 114 and is urged by the compression spring 108.
When 06 separates from the sensor 112, the sensor 112 turns on.
Then, the rotation of the stepping motor 94 is stopped. When the sensor 112 is turned on, the control panel 100 outputs a pulse corresponding to a predetermined movement amount, and the stepping motor 94 rotates in the reverse direction. As described above, in this embodiment, when the brush 32 is worn due to use, the brush 3 is moved more than the forward distance of the brush 32 by the stepping motor 94.
By setting the receding distance of 2 small, the brush 32
The protrusion amount L from the second holding plate 35 of the
The protrusion amount L of 2 is corrected.

When the protrusion length L of the brush 32 is corrected, Y
The axis servo motor 142 and the X axis servo motor 146 rotate in the reverse direction, and the first table 140 and the second table 14 are rotated.
By the movement with 4, the brush 32 returns to the original position and the correction cycle is completed. The correction of the brush 32 is not performed every time the machining is performed, but is performed every suitable number of times of machining according to the wear amount of the brush 32.

As shown in FIG. 12, when chamfering the workpiece 20 with the brush 32, only the outer peripheral portion of the tip portion of the brush 32 comes into strong contact with the workpiece 20, and therefore the tip portion of the brush 32. Will not be evenly worn and will be significantly deformed with respect to the shape of the unused brush 32. If machining is performed in a state where the tip of the brush 32 is significantly worn and deformed, a predetermined machining accuracy cannot be obtained. Therefore, in the present embodiment, the brush 32 is corrected to cope with this.

The correction of the wear deformation of the brush 32 is performed as follows. First, the brush rotation motor 66 is activated, and the second shaft 40 is rotationally driven via the toothed belt 72. Since the first holding plate 34 holding the brush 32 is connected to the second shaft 40, the plurality of brushes 3
2 rotates about the second axis 40. In this state, the Y-axis servomotor is activated, and the brush 32 moves forward by a preset dressing amount.

When the brush 32 advances to a predetermined position by the rotation of the Y-axis servo motor 142, the X-axis servo motor 146 is activated, and the brush table 31 moves in the X-axis direction by the movement of the second table 144. . When correcting the wear of the brush 32, the grindstone 1 of the dressing mechanism unit 130
Since 32 is rotated at a high speed by the motor 138, when the brush 32 is moved in the Y-axis direction by the Y-axis servomotor 142, the brush 32 and the grindstone 132 come into contact with each other, and the shape of the tip of the brush 32 is changed. It is corrected to the regular shape.

When the tip of the brush 32 is ground by contact with the grindstone 132 and corrected to a regular shape, the grindstone 13
The rotation of 2 is stopped. At the same time, reverse rotation of the Y-axis servo motor 142 and the X-axis servo motor 146 causes the first table 140 and the second table 144 to move, the brush unit 31 to return to the original position, and the brush 32 to move. The correction cycle of is completed.

When the brush 32 is corrected by the grindstone 132, the tip end surface of the brush 32 becomes a flat surface, and the tip end of the brush 32 is accurately aligned at the same position. Brush 3
In the state in which 2 is modified, the measuring means 10 as described above.
The protrusion length L of the brush 32 from the second holding plate 35 is corrected by 2. It should be noted that the correction of the brush 32 is not performed for each processing, but is performed according to the wear deformation amount of the brush 32. In the present embodiment, the brush 32 is corrected by the grindstone 132 only when the number of chamfering processes for the work 20 reaches a preset number.

In this embodiment, the chamfering process using the planetary ring in which the gear is formed on the inner peripheral surface side as the work 20 has been described, but it can be applied as the deburring process. Further, the processing by rotating the brush 32 can be applied not only to gears but also to deburring of a press-formed product obtained by punching a metal plate. Furthermore, the work 20 is not limited to metal, and can be applied to deburring of resin molded products formed by injection molding.

When only the flat work 20 is machined by the brush 32, the tip of the brush 32 is worn on average, so that the brush 32 need not be modified. Therefore, when processing the planar work 20, it is possible to substantially eliminate the variation in the processing accuracy by managing only the amount of protrusion of the brush 32 from the second holding plate 35.

Second Embodiment FIGS. 13 to 15 show a second embodiment of the present invention. The second embodiment is different from the first embodiment only in the presence / absence of a rotation mechanism for rotating the brush around its axis, and the other parts are the same as those in the first embodiment. The same reference numerals as those in the embodiment are used to omit the description of the corresponding portions, and only different portions will be described.

In FIG. 13, reference numeral 200 indicates a rotation mechanism for rotation. The rotation mechanism unit 200 for rotation includes a housing 201, a driving gear 202, an idler gear 203, a shaft 204, a driven gear 205, and a drive sleeve 20.
6, brush side driving gear 207, brush side driven gear 20
8 and a brush holder 209.

The structure of the rotation mechanism 200 for rotation is as follows. The driving gear 2 is provided at the shaft end of the second shaft 40.
02 is attached. A housing 201 is attached to the arm 69 of the frame 68. An idler gear 203 is housed in the housing 201.
The idler gear 203 is fixed to a shaft 204 that is rotatably held in the housing 201. One tooth portion of the idler gear 203 is meshed with the driving gear 202.

The idler gear 2 is provided in the housing 201.
A driven gear 205 is fixed adjacent to 03. The driven gear 205 is meshed with the other tooth portion of the idler gear 203. The driven gear 205 is connected to a drive sleeve 206 arranged on the outer circumference of the first shaft 38. The drive sleeve 206 is formed with a spline portion 206a formed on the outer peripheral surface of the first shaft 38 and a spline hole 206a that engages around the shaft center. The first shaft 38 is axially movable with respect to the drive sleeve 206.

A shaft-shaped brush holder 209 is held on the first holding plate 34 so as to be rotatable about its axis. A brush-side driving gear 207 is fixed near the shaft end of the first shaft 38. A brush-side driven gear 208 that is meshed with the brush-side driving gear 207 is fixed to the brush holder 209. The brush holder 209 has a brush 32
Is held. The rotational driving force of the first shaft 38 is transmitted to the brush holder 209 via the brush side driving gear 207 and the brush side driven gear 208. As a result, the brush 32 is rotatable about the axis F.

Next, the operation of the second embodiment will be described. In the case of the first embodiment in which the brush 32 does not rotate (rotate) around the axis but rotates (revolves) only by the second shaft 40, a part of the brush 32 is used as shown in FIG. When processing 190, brush 3
2 is unevenly worn, it is necessary to frequently correct the uneven wear portion 32a of the brush 32 by the dressing mechanism unit 130,
The life of the brush 32 is shortened.

Further, as shown in FIG. 17, when the burr 191a of the work (gear) 191 is removed by the brush 32, the brush 32 is rotated by only the second shaft 40.
When the brush 32 passes through the gear 191, a new burr (secondary burr) 191b is generated by the brush 32.
Occurs.

Therefore, in the present embodiment, when the gear 191 is machined as shown in FIG.
The brush 32 is rotated (revolved) about the rotation center E of 0, and the brush 32 is rotated (rotated) around the axis F by the first shaft 38. As a result, uneven wear of the brush 32 is eliminated, the life of the brush 32 can be improved, and the secondary burr 191b shown in FIG. 18 can be prevented from occurring.

Next, the revolution and rotation of the brush 32 will be described. When the brush rotation motor 66 is activated,
The rotational driving force is transmitted to the second shaft 40 via the toothed belt 72. The rotation driving force of the second shaft 40 is the guide rod 4
The brush 32 is transmitted to the first holding plate 34, which holds the brush 32, via Nos. 4 and 46. As a result, the first holding plate 34 rotates about the second shaft 40, and the brush 32 revolves around the second shaft 40.

The rotation of the brush 32 is performed through the following power transmission path. Since the driving gear 202 is attached to the shaft end of the second shaft 40, the rotational driving force of the second shaft 40 is transmitted through the driving gear 202 to the idler gear 20.
3 is transmitted. The rotational driving force of the idler gear 203 is
It is transmitted to the driven gear 205. Further, the driven gear 205
The rotational driving force of the drive torque is transmitted to the drive sleeve 206.

The drive sleeve 206 has the first shaft 38.
The rotary drive force of the drive sleeve 206 is transmitted to the first shaft 38 because it is engaged with the spline portion 38 a of the drive shaft 206. Here, the drive sleeve 206 and the first shaft 38 are spline-connected to each other by the brush 3
This is because it is necessary to move the first shaft 38 in the axial direction in order to correct the protrusion length L of 2.

A brush-side driving gear 207 is attached to one of the first shafts 38, and the brush-side driving gear 207 is attached.
Is a brush-side driven gear 2 fixed to the brush holder 209.
Since it is meshed with 08, the rotational driving force of the first shaft 38 is transmitted to the brush holder 209 via the brush side driving gear 207 and the brush side driven gear 208.

When the rotational driving force is transmitted to the brush holder 209, the brush 32 held by the brush holder 209 rotates around the axis F. That is, the brush 32 revolves around the rotation center E of the second shaft 40 and rotates about the axis F. In this embodiment, the direction of revolution and the direction of rotation coincide with each other. Since a plurality of brush-side driven gears 208 that mesh with the brush-side driving gear 207 can be provided in the circumferential direction, it is possible to simultaneously rotate the plurality of brushes 32.

As described above, in this embodiment, the brush 32 can be revolved and rotated by the single brush rotation motor 66. The rotation speed of the brush 32 depends on the driving gear 20.
2, the idler gear 203, the driven gear 205, the brush-side driving gear 207, and the brush-side driven gear 208 can be set to any rotation speed by changing the gear ratio of the five gears. It is also possible to reverse the revolution direction and the rotation direction of the brush 32 by changing the meshing configuration of each gear.

It should be noted that by separately providing the rotation driving sources for the first shaft 38 and the second shaft 40, the brush 32 can be revolved only or revolved. Therefore, when the brush 32 is only rotated about the axis F, as shown in FIG.
The burr 193a generated on the bottom surface of 93 can also be removed.

[0076]

According to the present invention, the following effects can be obtained.

(1) In the work automatic processing apparatus using the brush according to claim 1, the second brush of the work is used.
Since the amount of protrusion from the holding plate is automatically corrected to a predetermined value by the correction mechanism unit, it is possible to quantitatively manage the brush. Therefore, it is possible to eliminate the variation in the machining accuracy of the work due to the protrusion amount of the brush, and it is possible to improve the quality of the work as compared with the conventional art.

(2) In the work automatic processing apparatus using the brush according to the first aspect, since the correction of the protrusion amount of the brush is automatically performed, the operator's adjustment error can be eliminated as in the conventional case. Therefore, the operating rate of the automatic processing apparatus is increased, and the productivity of the work can be improved.

(3) In the automatic work processing apparatus using a brush according to claim 1, no abrasive material such as shot blasting or barrel polishing is required, and the brush can be used until it becomes short. The cost can be reduced.

(4) In the work automatic processing apparatus using a brush according to claim 2, since the tip of the brush that is worn and deformed by use can be corrected to a predetermined shape by the grindstone of the dressing mechanism portion, it can be compared with the conventional one. It is possible to remarkably improve the processing accuracy. Therefore, not only simple deburring processing but also cutting processing such as chamfering of gears is possible, and the applicable processing range can be expanded.

(5) In the workpiece automatic machining apparatus using the brush of claim 3, since the rotation mechanism for rotation rotates the brush around the axis, the brush revolves around the second axis. It can be rotated and can be rotated. Therefore, burrs that cannot be removed only by the revolution of the brush can be removed, and the deburring performance can be further enhanced.

(6) The shot blasting device and the barrel polishing device are difficult to perform quantitative processing and are positioned as special equipment, and daily maintenance is often difficult. However, automatic work processing using the brush of the present invention is required. The device can be handled like a machine tool and is significantly easier to handle and maintain.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of an automatic processing apparatus according to a first embodiment of the present invention.

FIG. 2 is a partially enlarged sectional view of the brush unit in FIG.

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

FIG. 4 is a plan view of the entire automatic processing apparatus in FIG.

FIG. 5 is a front view of FIG.

FIG. 6 is a left side view of FIG.

7 is a cross-sectional view of the measuring means in FIG.

FIG. 8 is a side view of FIG. 7.

9 is a plan view of the work holding means in FIG.

FIG. 10 is a front view of FIG. 9.

11 is a sectional view of the dressing mechanism portion in FIG.

12 is a cross-sectional view showing a chamfering processing state of a work by the automatic processing apparatus of FIG.

FIG. 13 is a sectional view of essential parts of an automatic processing apparatus according to a second embodiment of the present invention.

14 is a perspective view showing a work deburring work state by the apparatus of FIG. 13. FIG.

FIG. 15 is a cross-sectional view showing a deburring operation state of the groove portion of the work by the apparatus of FIG.

16 is a side view showing an example of wear of a brush in the apparatus of FIG.

FIG. 17 is a perspective view showing a state in which burrs are generated due to gear cutting.

18 is a perspective view showing a state in which a secondary burr is generated when the burr of the gear of FIG. 17 is removed by the device of FIG.

FIG. 19 is a sectional view showing an example of a conventional deburring tool.

20 is a front view of FIG. 19. FIG.

21 is a side view of FIG. 20. FIG.

[Explanation of symbols]

 20 Work 30 Automatic Processing Device 31 Brush Unit 32 Brush 34 First Holding Plate 35 Second Holding Plate 38 First Shaft 40 Second Shaft 66 Rotation Driving Means 80 Correction Mechanism 100 Control Panel 102 Measuring Means 120 Work Holding Means 130 Dressing mechanism 200 Rotating mechanism for rotation

Claims (3)

[Claims] 1. A brush which is bundled in a predetermined diameter and whose tip portion is in contact with a work held by a work holding means, a first holding plate which holds a root portion of the brush, and a tip outer circumference of the brush. A second holding plate that slidably holds the portion, a first shaft that is connected to the first holding plate, and a first holding plate that is arranged concentrically with the first shaft. A second shaft that is connected to the second holding plate via a guide rod that is slidably fitted; rotation drive means that rotationally drives the second shaft around an axis; Of the brush is moved in the axial direction to correct the protruding length of the tip of the brush from the second holding plate to a predetermined value. Automatic workpiece machining using the brush. apparatus. 2. A brush which is bundled in a predetermined diameter and whose tip portion is in contact with a work held by a work holding means, a first holding plate which holds a root portion of the brush, and a tip outer periphery of the brush. A second holding plate that slidably holds the portion, a first shaft that is connected to the first holding plate, and a first holding plate that is arranged concentrically with the first shaft. A second shaft that is connected to the second holding plate via a guide rod that is slidably fitted; a rotation driving unit that rotationally drives the second shaft around an axis; A dressing mechanism that corrects the tip to a predetermined shape by polishing with a grindstone, and the first axis is moved in the axial direction to correct the amount of protrusion of the tip of the brush from the second holding plate to a predetermined value. An automatic workpiece processing apparatus using a brush, which comprises: a correction mechanism section. 3. A brush which is bundled in a predetermined diameter and whose tip portion is in contact with a work held by a work holding means, a first holding plate which holds a root portion of the brush, and a tip outer periphery of the brush. A second holding plate that slidably holds the portion, a first shaft that is connected to the first holding plate, and a first holding plate that is arranged concentrically with the first shaft. A second shaft that is connected to the second holding plate via a guide rod that is slidably fitted; rotation drive means that rotationally drives the second shaft around an axis; And a rotation mechanism unit for rotating the brush around the axis, a correction mechanism unit that moves the shaft of the brush in the axial direction to correct the amount of protrusion of the tip of the brush from the second holding plate to a predetermined value. An automatic workpiece processing apparatus using a brush, which is characterized in that: