JP3030776B1 - Bolt brushing equipment - Google Patents

Abstract

An object of the present invention is to provide a bolt brushing device which can easily cope with frequently changing the size of a bolt, does not apply a thrust load to the bolt during brushing, and can extend the life of the brush. SOLUTION: A plurality of L-shaped arms 27 rotatable at substantially equal intervals along the circumferential direction of a rotor 13 and supported by pins 29 provided orthogonally to the axial direction of the rotor 13. And a brush 15 attached to one end of the arm 27.
Arm rotating means for rotating the other end of the arm 27 around the pin 29, wherein the arm rotating means comprises a rotatable bearing 32 provided at the other end of the arm 27, A pair of arm rotating plates 36 and 37, which are disposed opposite to each other with a required gap between the outer ring and the outer ring, the pair of arm rotating plates 36 and 37 being able to contact one of the outer rings; Advancing / retracting means 4 for moving the rotating plates 36 and 37 in the axial direction of the rotor 13
Two.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bolt brushing apparatus used for cleaning and reusing bolts disassembled during maintenance of various facilities.

[0002]

2. Description of the Related Art In a mechanical structure, various bolts are used as means for joining members, and these bolts are removed by removing bolts for checking or replacing the joined members. Cleaning has been done. As an example of a bolt cleaning (or brushing) device, a device described in Japanese Patent Publication No. 4-66624 is known. In the cleaning device for a cylindrical body such as a bolt, a base end of an arm having a brush portion is attached to a rotatably provided rotor, and this arm can be swung in the radial direction of the rotor, and the size of the bolt in the radial direction is increased. A holding ring is provided on the peripheral surface of the rotor, which can adjust the posture of the arm in accordance with the position of the arm and can restrain the posture.

[0003]

However, the conventional cleaning apparatus has the following problems to be solved. (1) When changing the size of the bolt, it is necessary to move the retaining ring in the axial direction of the rotor screwed into the retaining ring. When changing the size of the bolt frequently, this operation requires time. I was In addition, the ring had to be replaced according to its size. (2) At the time of cleaning the bolt, a thrust load is applied to the bolt depending on the rotation direction of the brush and the direction of the screw of the bolt, so that a force for suppressing the movement of the bolt is required.

The present invention has been made in view of the above circumstances, and can easily cope with frequently changing the size of a bolt, does not apply a thrust load to the bolt during brushing, and extends the life of the brush. It is an object of the present invention to provide a bolt brushing device that can be used.

[0005]

According to the present invention, there is provided a bolt brushing apparatus comprising: a rotatable rotor via a rotary driving means; and a bolt screw attached to the rotor and advanced and retracted in the axial direction of the rotor. In a bolt brushing device having a brush abutting on a groove, a plurality of Ls rotatably supported by pins provided orthogonal to the axial direction of the rotor at substantially equal intervals along the circumferential direction of the rotor. Arm, a brush attached to one end of the arm, and arm turning means for turning the other end of the arm around a pin, the arm turning means being provided at the other end of the arm. The provided rotatable bearing, and a pair of arm rotating plates that are disposed facing each other with a required gap between the outer ring with the outer ring of the bearing interposed therebetween, and the outer ring can contact one of the arm rotating plates. , Lower the pair of arm rotating plates And a moving means for advancing and retracting the axially. Therefore, a plurality of L
When the U-shaped arm is turned around the pin, the brush attached to one end of the arm is turned, so that the brush can be brought into contact with and separated from the screw groove of the bolt. Further, the other end of the arm that rotates via the rotor can be moved back and forth in the axial direction of the rotor.

Here, a disk-shaped slide guide plate which is attached to the main body of the device in front of the brush and has a slide groove formed therein for sliding a plurality of guide members is provided. A guide member having a guide portion whose tip guides the outer periphery of the bolt, a cam floor provided on the guide member, and a guide groove through which the cam floor is inserted are spirally defined with respect to the center of the slide guide plate. A guide opening adjusting means having a rotating cam plate formed to have a length and rotatable with respect to the center of the sliding guide plate, and having fixing means for fixing the rotating cam plate and the sliding guide plate is provided. According to the size of the diameter of the bolt, a plurality of guide members can be moved in the radial direction of the bolt to adjust the opening of the guide. Thus, according to the size of the diameter of the bolt, a plurality of guide members that can contact the bolt and guide the bolt can be moved in the radial direction of the bolt to adjust the opening of the guide, so that various bolt sizes can be accommodated. The brush is rotatable around a small pin orthogonal to the axial direction of the bolt, and is brushed by bundling and forming a linear wear-resistant material in a disk shape around the axis of the small pin. Since the screw can be freely rotated along the screw direction, no thrust load is applied to the bolt. Further, since the circumference of the disk-shaped brush can be used, the brush load per unit length is reduced, and the brush lasts longer. Further, since the rotor has a hollow portion through which a bolt can be inserted, the brushing length can be increased.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. Here, FIG. 1 is a front sectional view of a bolt brushing device according to one embodiment of the present invention, FIG. 2 is a cutaway plan sectional view of the same part, FIG. 3 is a side view thereof, and FIG. -A sectional view, Fig. 5 is a sectional view taken along line BB in Fig. 4, Fig. 6 is a sectional view taken along line CC in Fig. 3, Fig. 7 is an air circuit diagram, and Fig. 8 is an embodiment of the present invention. FIG. 7 is a front sectional view of a modification of the bolt brushing device according to the first embodiment.

As shown in FIGS. 1 and 2, a bolt brushing apparatus 10 according to an embodiment of the present invention is rotatable via a rotary drive unit 12 including an air drive motor 11 which is an example of a rotary drive source. Rotor 13 and rotor 13
, And has a brush 15 that comes into contact with a thread groove of a bolt B that advances and retreats in the direction of the axis m of the rotor 13. This will be described in detail below. Rotation driving means 1 for rotating rotor 13
2 has a small gear 15a attached to the output shaft of the air drive motor 11 fixed to the attachment frame 14, and a large gear 16 meshing with the small gear 15a. Large gear 16
And the rotor body 17 are composed of a key 18 and a key holder 19.
The rotor main body 17 is fixed between the rotor main body 17 and support plates 20 and 21 such as bearings constituting the mounting frame 14.
2 provided at intervals in the longitudinal direction of the rotor body 17
It is rotatably supported by the bearings 22 and 23.

A brush mounting member 25 is mounted on the tip end of the rotor body 17 via a bolt 26, and the brush 15 is mounted on one end of the brush mounting member 25 on the brush 15 side. L-shaped arm 27
Are formed at three locations at equal intervals of 120 ° along the circumferential direction of the rotor main body 17. The rotor 13 has a brush mounting member 25 and a rotor body 17. As shown in the drawing, the rotation support portion 28 has a structure in which the vicinity of a right angle portion of the arm 27 is rotatably supported by a pin 29 provided orthogonally to the axial direction of the rotor 13. On the brush 15 side of the arm 27, a brush mounting bracket 30 is configured to be detachable using a screw coupling mechanism, and two brushes 15 are mounted on the tip of the brush mounting bracket 30 via small pins 31. .
Therefore, if the air drive motor 11 is driven, the rotor 1
The brush 15 rotates around the axis m via the arm 3 and the arm 27.

The brush 15 is rotatable about a small pin 31 supported at the tip of a brush mounting bracket 30 at right angles to the axial direction of the bolt B, and is formed in a disk shape around the axis n of the small pin 31. , Formed by bundling linear wear-resistant materials. As the linear wear-resistant material, a steel wire, a wire such as stainless steel or brass, a nylon wire, or the like can be used, and can be selected according to the material of the bolt B to be brushed. 3
The other end of each arm 27 is provided with a rotatable bearing 32 made of a ball bearing on the distal end side, while the fixed shaft 33 screwed into the arm 27 is mounted on the base side.
Are mounted via a bearing retainer 34 and a set bolt 35. As shown in FIG. 1, the three bearings 32 are provided facing each other in the axial direction of the rotor 13 while maintaining a gap G obtained by adding a slight gap (about 1 mm) to the outer diameter of the bearing 32. It is inserted between two arm rotating plates 36 and 37. The arm rotating plates 36 and 37 have a rectangular outer shape and a circular hole formed therein, and a plurality of hollow spacers 38 are provided between the arm rotating plates 36 and 37 so as to maintain the gap G. Are inserted, and are integrally formed by a bolt 39 and a nut 40 that pass through the center of the spacer 38.

Air drive motor 11 for supporting plate 20 such as a bearing
On the side surface 41, the integrated arm rotation plates 36, 37
An air cylinder 42 which is an example of an advancing / retracting means constituting an arm rotating means capable of rotating the arm 27 around a pin 29 by moving the arm 13 in the axial direction of the rotor 13 is attached. 43 is connected to the outer surface 44 of the arm rotation plate 37. The arm rotating means includes an air cylinder 42, a fixed shaft 33, a bearing 3
It has two and a pair of arm rotation plates 36 and 37. Therefore, by operating the three air cylinders 42 in synchronization with each other, the arm 27 is rotated around the pin 29 via the arm rotation plates 36 and 37 and the bearing 32. As a result, the two points shown in FIG. As shown by the chain line, the brush 15 can be moved toward and away from the bolt B. Air drive motor 1
When the brush 15 is pressing the bolt B while rotating around the axis m, the bearing 32 attached to the arm 27 has the outer peripheral surface of its outer ring on the inner surface of the arm rotating plate 37 when the brush 15 is rotating around the shaft m. While contacting, the outer ring rotates around the axis m. At this time, since the outer circumferential surface of the outer ring of the bearing 32 has the above-mentioned gap G, it does not come into contact with the inner surface of the arm rotating plate 36.

In order to reliably move the arm rotating plates 36 and 37 forward and backward, two rotating plate guide rods 45 and 46 fixed to the support plates 20 and 21 such as bearings by a screw mechanism are provided. ing. As shown in the figure, the rotating plate guide rod 45 is provided at the upper part with the rotating plate guide rod 46.
Is provided at the bottom. Rotating plate guide rods 45, 46
The brush 15 side is inserted into a slidable guide (not shown) formed on the arm rotation plates 36 and 37. Therefore, the arm rotation plates 36 and 37 are guided by sliding the rotation plate guide rods 45 and 46 in the axial direction of the rotor 13. For positioning between support plates 20 and 21 such as bearings,
Four spacers 47 are fixed by bolts 48 and nuts 49.

1 to 3, reference numerals 45a and 46a
Is a stopper for the arm rotating plates 36 and 37 attached to the tip of the rotating plate guide rods 45 and 46 on the brush 15 side, 50 is a mounting base, 51 is a spacer, 52 is 53 is a bearing holder,
Is a gear cover, 55 is an upper box cover, 56 and 57 are side box covers, 58 is a front box cover, and 59 is a dust box for collecting brushing debris generated by brushing the bolt B. Reference numeral 60 denotes a handle attached to the dust box 59, and reference numerals 59a and 59b denote box holding brackets that hold the dust box 59.

In front of the brush 15, there is provided a guide opening adjusting means 61 which can contact the bolt B and guide the bolt B in accordance with the outer diameter of the bolt B. The guide opening adjusting means 61 is attached to the front box cover 58 constituting the apparatus main body. As shown in FIG. 3, three coils are arranged at equal intervals (120 °) in the circumferential direction around the axis m.
The guide members 62 are simultaneously moved radially with respect to the axis m, and the outer periphery of the bolt B is guided by the guide portion 62a at the tip of the guide member 62.

As shown in FIG. 4 and FIG.
Reference numeral 2 denotes a structure that can slide on a stepped groove (an example of a sliding groove) 64 formed on a disk-shaped sliding guide plate 63 attached to the front surface of the front box cover 58. A shaft 65 having a screw formed at one end thereof is inserted through the guide member 62, and a cam floor 66 is attached to the other end of the shaft 65. Have been. A mounting plate 69 for mounting the limit switch 68 is fixed to the rear surface of the lowermost guide member 62. The limit switch 68 is provided to detect the inserted bolt B and drive the air cylinder 42.

As shown in FIG. 4, the slide guide plate 6
A rotary cam plate 70, which is rotatable with respect to the center (axis m) of the slide guide plate 63, is disposed on the front surface of the slide guide plate 3. The rotation of the rotary cam plate 70 can be guided by lightly sandwiching the outer edge of the rotary cam plate 70. The cam plate guide 71 and the slide guide plate 63 are fastened by a screw mechanism (not shown). 3 to 5
As shown in FIG.
Are inserted into the three guide grooves 72 so that the slide guide plate 6
A predetermined length (moving range of the guide member 62) is formed spirally at a pitch of 120 ° in the circumferential direction with respect to the center of No. 3. Therefore, as shown in FIG.
0 is rotated to the right with respect to the slide guide plate 63, the three cam floors 66 move outward along the guide grooves 72 formed in the rotary cam plate 70, so that the three guide members 62 Simultaneously moves away from the center (axis m). Conversely, when the rotary cam plate 70 is rotated leftward, 3
Since the three cam floors 66 move inward along the guide grooves 72, the three guide members 62 simultaneously approach the center. As a result, the outer circumferences of the bolts B of various sizes can be guided by the guide portions 62a at the tips of the three guide members 62.

As shown in FIG. 3, at the front of the bolt brushing device 10, two sets of fixing means 73 for fixing the rotating cam plate 70 and the sliding guide plate 63 to prevent the guide member 62 from moving. Is provided. As shown in FIG. 6, the fixing means 73 includes a male screw part 75 screwed into a female screw part 74 formed on the slide guide plate 63 and has a clamp 76. A pressing plate 79 having a rectangular outer diameter and a centrally formed insertion hole 78 through which a male screw portion 75 is inserted is provided between the end surface of the pressing portion 77 of the clamp 76 and the outer edge portion 70a of the rotary cam plate 70. Is arranged. An insertion hole 80 through which the male screw portion 75 is inserted is formed in the center between the slide guide plate 63 and the holding plate 79, and the thickness of the guide hole is slightly smaller than the thickness of the outer edge portion 70a of the rotary cam plate 70. A ring 81 is mounted. Therefore, the clamp 76
Is rotated in one direction to loosen the male screw portion 75 from the female screw portion 74 of the slide guide plate 63, and the rotating cam plate 70 is rotated.
Is rotated by a predetermined angle to guide the bolt B by the guide member 62, and then the clamp 76 is rotated in the opposite direction to rotate the male screw portion 7
By tightening the 5 into the female screw portion 74, the rotating cam plate 70 can be clamped to the guide member 62, and the guide member 62 can be fixed. 1 to 3, reference numeral 82 denotes a handle for conveyance, and reference numeral 83 denotes a rotary cam plate 70.
Represents a knob for rotating.

Next, a bolt brushing operation method using the bolt brushing apparatus 10 according to one embodiment of the present invention will be described with reference to an air circuit 24 shown in FIG. First, the bolt brushing device 10
Is transported to a work place, and is fixed to a work table or the like (not shown) via a mounting stand 50. At this time, the guide opening adjusting means 6
It is assumed that one guide member 62 and the brush 15 are set at positions farthest from the axis m. The rotary cam plate 70 is rotated by the knob 83 of the guide opening adjusting means 61 to move the three guide members 62 in the center direction, and the guide members 62 are adjusted to the size of the bolt B to be brushed.
Is adjusted, and the rotating cam plate 70 is
Is fixed to the slide guide plate 63, thereby fixing the guide member 62.

Next, as shown in FIG. 7, the open / close valve 85 provided on the supply pipe 84 is opened to open the air drive motor 11.
To rotate the brush 15. The rotation speed of the brush 15 is about 200 to 300 rpm, and the speed control valve 86
To adjust. As shown in FIG. 4, a bolt B is inserted from the front of the guide opening adjusting means 61 in the direction of the axis m along the guide portion 62a of the guide member 62, and
Operates the limit switch 68, drives the air cylinder 42 based on the detection signal, and presses the brush 15 against the bolt B. In order to press the brush 15 against the bolt B, as shown in FIG. 7, the direction switching valve 88 provided on the supply side pipe 87 is operated to the side a to drive the three air cylinders 42 so that the rod 43 is moved. The arm 27 is rotated forward and rotated counterclockwise around the pin 29. This operation is normally performed automatically by the detection signal of the limit switch 68. Adjustment of the pressing force of the brush 15 to the bolt B is performed by operating the pressure reducing valve 89 provided in the supply pipe 87. Adjustment of the moving speed of the rod 43 is performed by operating each speed control valve 93 provided in the discharge pipes 90 to 92 in advance. The adjustment of the speed control valve 86 and the pressure reducing valves 89 and 99 can be set in advance before the brushing operation, but can be operated according to the situation during the brushing operation.

While maintaining a predetermined pressing force, the bolt B is slowly pushed in by hand and brushed to a required length while being retracted as necessary. Dust generated during the brushing operation is stored in a dust box 59 disposed below the brush 15. When the brushing operation is completed, when the bolt B is removed from the guide opening adjustment means 61, the limit switch 68 is operated, and the direction switching valve 88 is switched to the b side by this detection signal, and the brush 15 moves outward. The moving speed at this time is adjusted by adjusting a speed control valve 97 provided in the supply pipes 94 to 96 in advance. Next, another bolt B to be brushed is inserted along the guide portion 62a of the guide member 62, and the brushing operation is repeatedly performed as described above.

When the brushing operation of all the bolts B is completed and the bolts B are pulled out, the brush 15 moves outward (or open). Thereafter, the on-off valve 85 is closed to stop the rotation of the brush 15. Thereafter, the clamp 76 of the fixing means 73 is loosened, and the rotating cam plate 70 and the sliding guide plate 6
3 and the knob 83 of the guide opening adjusting means 61 is rotated to rotate the rotary cam plate 70 and move the guide member 62 outward. The dust stored in the dust box 59 is taken out, the dust is removed, and set again according to the situation. In FIG. 7, reference numeral 98 denotes an Euler, reference numeral 100 denotes a filter, and reference numeral 101 denotes a pressure gauge.

FIG. 8 shows a bolt brushing device 110 which is a modification of the bolt brushing device 10 according to one embodiment of the present invention. Bolt brushing device 11
No. 0 is characterized in that the rotor has a hollow portion 104 through which a bolt having a long brushing length can be inserted, as compared with the bolt brushing device 10. FIG.
Components similar to those of the middle bolt brushing device 10 are indicated by numbers obtained by adding 100, and detailed descriptions thereof will be omitted. As shown in FIG. 8, the rotor main body 117 has a cylindrical shape in which the hollow portion 104 is formed. An air cylinder for moving the arm rotating plates 136 and 137 is not shown, but is provided with the same configuration as that of the bolt brushing device 10. Therefore, the bolt brushing device 110 can be a compact device that can clean even a bolt having a long brushing length. In addition, the code | symbol 102 in FIG. 8 is an air valve storage box,
Reference numeral 103 denotes a dust box, and 152a denotes a bearing retainer.

In the above embodiment, the number of the arms 27 is three, but may be two or four or more. An electric actuator may be used instead of the air drive motor 11 or the air cylinder 42. Although three air cylinders 42 are provided corresponding to the number of arms 27, one, two, or four or more air cylinders may be provided. Although the three guide members 62 are simultaneously moved by the rotating cam plate 70, the present invention is not limited to this, and a driving unit may be provided for each guide member 62, and the driving units may be synchronized.
Although the number of the brushes 15 provided at the tip of the arm 27 is two, the number is not limited thereto, and may be one or three or more. Although the insertion of the bolt B is detected by the limit switch 68 and the direction switching valve 88 of the air circuit 24 is switched, the operation can be performed by a manual type direction switching valve without using the limit switch.

[0024]

According to the bolt brushing device of the present invention, when the plurality of L-shaped arms are rotated around the pins by the arm rotating means, the brush attached to one end of the arm is rotated. The brush can be moved toward and away from the screw groove of the bolt, so that a plurality of brushes can be reliably moved by a simple structure. Further, since the other end of the arm that rotates via the rotor can be advanced and retracted in the axial direction of the rotor, the drive mechanism can be made compact and a lightweight device can be obtained. In particular, in the bolt brushing device according to the second aspect, by providing the guide opening adjusting means,
Since it can correspond to various bolt sizes, it has versatility.
In addition, the rotation of the rotary cam plate of the guide opening adjustment means allows the plurality of guide members to be simultaneously moved to come into contact with and separate from the bolts, and that after the guide members are positioned, their positions can be fixed by the fixing means. The positioning of the bolt is easy, and the fixing of the guide member is also simple.

In the bolt brushing device according to the third aspect, the brush can be freely rotated along the screw direction of the screw to be brushed, and the resistance when the brush advances and retreats is small, so that the brush of the operator can be reduced. Operation becomes easy. Further, a thrust load is not applied to the bolt during brushing, and the life of the brush can be extended. In the bolt brushing device according to the fourth aspect, since the rotor is formed with a hollow portion through which the bolt can be inserted, the length of the bolt to be brushed can be increased, and as a result, the versatility of the device is improved.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a bolt brushing device according to an embodiment of the present invention.

FIG. 2 is a cutaway plan sectional view of the same part.

FIG. 3 is a side view of the same.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is a sectional view taken along line BB of FIG. 4;

FIG. 6 is a sectional view taken along the line CC in FIG. 3;

FIG. 7 is an air circuit diagram.

FIG. 8 is a front sectional view of a modified example of the bolt brushing device according to one embodiment of the present invention.

[Explanation of symbols]

10: bolt brushing device, 11: air drive motor (rotation drive source), 12: rotation drive means, 13: rotor, 14: mounting frame, 15: brush, 15a: small gear, 16: large gear, 17: rotor body , 18: key,
19: key holder, 20: support plate such as bearing, 21: support plate such as bearing, 22: bearing, 23: bearing, 24: air circuit, 25: brush mounting member, 26: bolt, 27: arm, 28: turn Dynamic support part, 29: pin, 30: brush mounting bracket, 31: small pin, 32: bearing, 33: fixed shaft, 34: bearing holder, 35: set bolt, 36: arm rotating plate, 37: arm rotating Board, 3
8: spacer, 39: bolt, 40: nut, 41:
Surface, 42: air cylinder, 43: rod, 44: outer surface, 45: rotating plate guide rod, 45a: stopper, 46: rotating plate guide rod, 46a: stopper, 47: spacer, 48: bolt, 49 : Nuts, 5
0: Mounting stand, 51: Spacer, 52: Bearing holder, 53: Bearing holder, 54: Gear cover,
55: upper box cover, 56: side box cover, 57: side box cover, 58: front box cover, 59: dust box, 59a: box holding bracket, 59b: box holding bracket, 60: handle, 61: guide opening adjusting means , 62: guide member, 6
2a: guide portion, 63: slide guide plate, 64: stepped groove, 65: shaft, 66: cam floor, 67: nut, 68: limit switch, 69: mounting plate, 70: rotary cam plate, 70a: outer edge Part, 71: cam plate guide, 7
2: guide groove, 73: fixing means, 74: female screw part, 7
5: male screw part, 76: clamp, 77: pressing part, 78:
Insertion hole, 79: holding plate, 80: insertion hole, 81: guide ring, 82: handle, 83: knob, 84: supply pipe, 8
5: open / close valve, 86: speed control valve, 87: supply side piping, 8
8: Direction switching valve, 89: pressure reducing valve, 90: discharge side pipe, 91: discharge side pipe, 92: discharge side pipe, 93: speed control valve, 94: supply side pipe, 95: supply side pipe, 96:
Supply side piping, 97: speed control valve, 98: Euler, 9
9: pressure reducing valve, 100: filter, 101: pressure gauge, 1
02: air valve storage box, 103: dust box, 104: hollow portion, 110: bolt brushing device, 111: air drive motor (rotary drive source), 11
2: rotational drive means, 113: rotor, 114: mounting frame, 115a: small gear, 116: large gear, 117:
Rotor body, 118: key, 120: support plate such as bearing, 1
21: Support plate such as bearing, 122: Bearing, 123: Bearing, 1
25: Brush mounting member, 127: Arm, 128: Rotating support, 129: Pin, 130: Brush mounting bracket, 131: Small pin, 132: Bearing, 133: Fixed shaft, 134: Bearing retainer, 135: Set bolt 136: arm rotation plate, 137: arm rotation plate
138: Spacer, 145: Rotating plate guide rod, 1
46: rotating plate guide rod, 146a: stopper,
152: bearing retainer, 152a: bearing retainer, 153: bearing retainer, 155: upper box cover, 158: front box cover, 161: guide opening adjusting means, 163: slide guide plate, 170: rotary cam plate, 171: cam Board guide

Claims (4)

(57) [Claims] 1. A bolt brushing device comprising: a rotor rotatable via a rotation driving means; and a brush attached to the rotor and abutting against a thread groove of a bolt which advances and retreats in an axial direction of the rotor. A plurality of L-shaped arms rotatably supported by pins provided orthogonal to the axial direction of the rotor at substantially equal intervals along the circumferential direction and attached to one end of the arms; Provided with the brush, and arm rotating means for rotating the other end of the arm around the pin, wherein the arm rotating means is provided on a rotatable bearing provided on the other end of the arm. And a pair of arm rotating plates that are arranged facing each other with a required gap between the outer ring of the bearing and the outer ring, and that the outer ring can contact one of the arm rotating plates, Moving the arm rotating plate back and forth in the axial direction of the rotor A bolt brushing device having retraction means. 2. The bolt brushing device according to claim 1, wherein the bolt brushing device is attached to an apparatus main body in front of the brush.
A disk-shaped slide guide plate having a slide groove formed therein for sliding a plurality of guide members; and a guide portion in which a tip on the center side of the slide guide plate guides the outer periphery of the bolt. A guide member, a cam floor provided in the guide member, and a guide groove through which the cam floor is inserted is formed in a predetermined length spirally with respect to the center of the slide guide plate; Guide opening adjusting means having a fixing means for fixing the rotating cam plate and the sliding guide plate, the guide opening adjusting means having a rotating cam plate rotatable with respect to the center of the bolt. The bolt brushing device according to claim 1, wherein the plurality of guide members are moved in the radial direction of the bolt to adjust the opening of the guide. 3. The bolt brushing device according to claim 1, wherein the brush is rotatable around a small pin orthogonal to an axial direction of the bolt, and is formed into a disk shape around the axis of the small pin. A bolt brushing device formed by bundling linear wear-resistant materials. 4. The bolt brushing device according to claim 1, wherein the rotor has a hollow portion through which the bolt can be inserted.