JP2008003162A - Industrial endoscopic instrument and grinding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an industrial endoscopic instrument by which inspecting work is performed by easily grinding a wide range regardless of the position and the state or the like of a part to be treated, and a grinding device. <P>SOLUTION: The industrial endoscopic instrument 1 includes: an insertion part 3 which is equipped with an imaging means at its tip part 2a and in which a treatment tool inserting-through channel 3a is inserted; a grinding part 16 which is disposed in the treatment tool inserting-through channel and grinds an object to be ground by rotating in such a state that it extends out from the tip part; a weight 17 which is arranged at the tip of the grinding part and makes the rotating grinding part extend out from the tip part; and an operation part 4 which is equipped with a driving part 10 giving rotational driving force to the grinding part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an industrial endoscope apparatus and a polishing apparatus capable of performing a treatment such as grinding with a rotating treatment member.

  2. Description of the Related Art Conventionally, an industrial endoscope is used for inspection of whether or not there is a failure or malfunction by being inserted into an industrial plant or jet engine, for example.

Such an industrial endoscope, for example, when a damage such as chipping is found in various parts by an endoscopic inspection in Patent Document 1, for example, without disassembling plant equipment or disassembling the engine. Disclosed is one that can be disposed at the tip and can rotate the grindstone to polish the parts.
Japanese Patent Laid-Open No. 9-120032

  However, an industrial endoscope may be used for inspecting burrs and the like generated in a metal product or a metal pipe that cannot be reached at the time of manufacture, and removing the generated burrs. Such burrs and the like frequently occur after, for example, lathe processing for forming holes and the like.

  In the industrial endoscope of Patent Document 1 described above, for example, even if the tip member is bent with respect to the guide tube and the direction is changed, a burr generated at the opening end inside the product of the grindstone of the tip member, etc. It is difficult to make it abut. Further, in this industrial endoscope, the range in which the tip member can be bent is limited depending on the space size of the product into which the guide tube is inserted, and thus it is difficult to reliably polish burrs and the like.

  Regardless of medical or industrial use, a general endoscopic treatment instrument channel has a position where its opening is deviated from the center of the distal end surface of the distal end member by the built-in component and device of the distal end member, that is, eccentric Provided at the position. For this reason, the grindstone of the treatment tool used for the industrial endoscope can be disposed only at a position eccentric from the center of the distal end surface of the distal end member.

  Therefore, even if the grindstone can come into contact with a burr or the like, the industrial endoscope can only be partially polished and cannot be polished over a wide range. As a result, the user must rotate the guide tube and change the position of the grindstone many times depending on the position, state, etc. of the burr and the like. there were.

  Accordingly, the present invention has been made in view of the above-described circumstances, and an industrial endoscope apparatus and a polishing apparatus that can easily perform an inspection operation with polishing or the like regardless of the position, state, or the like of a treated portion. The purpose is to provide.

  In order to achieve the above object, the industrial endoscope apparatus of the present invention is provided with an imaging means at the distal end, and is disposed in the treatment instrument insertion channel, the insertion section through which the treatment instrument insertion channel is inserted, and the distal end. A polishing part that polishes an object to be polished by rotating in a state of extending from the part, a weight that is disposed at a tip of the polishing part and that extends the rotating polishing part from the tip part, and the polishing And an operation unit including a drive unit that applies a rotational driving force to the unit.

  The polishing apparatus of the present invention can be inserted into a treatment instrument insertion channel of an industrial endoscope apparatus, and polishes an object to be polished by rotating in a state of extending from the distal end portion of the endoscope. A polishing part, a weight arranged at the tip of the polishing part and extending the rotating polishing part from the tip part, a biasing member for biasing the polishing part in the proximal direction, and a polishing part. And a driving unit for applying a rotational driving force.

  According to the industrial endoscope apparatus and the polishing apparatus of the present invention, an inspection operation can be performed by easily polishing a wide range regardless of the position, state, etc. of the treated portion.

An embodiment of the present invention will be described with reference to FIGS.
1 to 5 relate to an embodiment of the industrial endoscope apparatus of the present invention, FIG. 1 is an overall configuration diagram showing the industrial endoscope apparatus, and FIG. 2 is housed in the distal end portion of the insertion portion. FIG. 3 is a diagram showing a state in which the polishing wire is extended from the distal end portion by rotation, and FIG. 4 is a diagram showing the polishing wire disposed in the treatment instrument insertion channel of the insertion portion from the distal end portion. FIG. 5 is a view for explaining the structure for extending and rotating, FIG. 5 is a view for explaining the action of the polishing wire extending from the distal end portion of the insertion portion, and FIG. 6 is an industrial endoscope apparatus. FIG. 7 is a diagram for explaining the action of polishing and removing a portion to be polished such as a burr; FIG. 7 is a view for extending and rotating the polishing wire disposed in the treatment instrument insertion channel of the insertion portion from the distal end portion. It is a figure for demonstrating the modification structural example.

  As shown in FIG. 1, an industrial endoscope apparatus (hereinafter simply referred to as an endoscope) 1 according to this embodiment includes an insertion portion 3 including a distal end portion 2a, a curved portion 2b, and a flexible tube portion 2c. And an operation unit 4 and a main body device 5.

  In the present embodiment, the insertion portion 3 is provided with a bending portion 2b for changing the observation direction and the insertion direction. A proximal end portion of the flexible tube portion 2 c of the insertion portion 3 is connected to the operation portion 4.

  The insertion portion 3 has a tip observation portion (hereinafter simply referred to as a tip portion) 2a at the tip. The distal end portion is provided with an observation window and an illumination window, and an observation unit in which an imaging means such as a CCD and a CMOS (not shown) and various optical members are incorporated is disposed.

  The insertion section 3 communicates with a rotation drive section 10 of the operation section 4 to be described later, and a treatment instrument insertion channel opened at the distal end portion 2a is inserted therethrough.

  In the present embodiment, a so-called direct-view endoscope 1 in which the observation unit faces the direction along the insertion direction is illustrated. In the following description, the endoscope 1 according to the present embodiment is not limited to the direct view type, and of course, the so-called direct view type endoscope in which the observation unit faces the direction substantially orthogonal to the insertion direction. In addition, the present invention can also be applied to a so-called perspective endoscope in which the observation unit faces a direction inclined in the insertion direction.

  The operation unit 4 includes a handle unit 8 for a user to hold and a rotation drive unit 10 in which a motor is built. On the upper surface of the handle portion 8, a bending operation lever 8 a for instructing the bending direction of the bending portion of the insertion portion 3 and switches 8 b for operating the rotation driving portion 10 are disposed. . The operation unit 4 is electrically connected to the main unit 5 by a universal cord 12 that is a control cable.

  The main unit 5 includes a control box 13 to which the universal cord 12 is connected, and a monitor unit 14 that also serves as a lid that can be opened and closed to the control box 13. In the main body device 5, a light source of white light irradiated from the illumination window of the observation unit of the insertion unit 3 and a control circuit for performing various controls are incorporated. The main body device 5 does not have a light source, and illumination means such as an LED may be provided in the observation unit.

The control box 13 has various input sections 15 such as a power switch and a keyboard on the top surface in the vertical direction.
The monitor unit 14 has a display screen 14a such as an LCD (Liquid Crystal Display). The display screen 14a may be a so-called multi-display screen that can display a plurality of images simultaneously.

  As shown in FIG. 2, the above-described treatment wire insertion channel 3a of the insertion portion 3 is inserted with a polishing wire 16 which is a polishing portion having a weight 17 disposed at the tip. The polishing wire 16 has a plurality of metal strands twisted and bundled, has a predetermined length and flexibility, and has a slightly curved shape as shown in FIG.

  The polishing wire 16 has a predetermined length, is inserted through a soft sheath 20, and a proximal end is fixed to a cylindrical column stopper 18. The base end surface of the cylindrical stopper 18 is connected to the tip of a shaft 19 having a predetermined flexibility for transmitting rotation and the polishing wire 16.

  That is, as will be described later, the polishing wire 16 is rotated from the shaft 19 in a state of extending from the distal end portion 2a as shown in FIG. It rotates around the opening of 3a, that is, around the long axis.

Next, a configuration and an action for extending the polishing wire 16 in the treatment instrument insertion channel 3a from the distal end portion 2a and rotating the same will be described with reference to FIGS.
As shown in FIG. 4, normally, as described above, in the sheath 20, in order from the distal end, the weight 17, the polishing wire 16, the cylindrical stopper 18, the shaft 19, and the base end of the shaft 19 are provided. A connected prismatic prism stopper 22, a spring 23 that is a biasing member connected to the base end face of the prism stopper 22, a base 24 that fixes the base end of the spring 23, and a prism stopper 22 And an inner sheath 21 in which a prismatic slide hole portion 21a, which is a long hole having a prismatic cross section having a hole surface having the same shape as the cross sectional shape, is provided.

  The prism stopper 22 receives a biasing force toward the proximal end by the spring 23, and the shaft 19 and the cylindrical stopper 18 are pulled in the proximal direction. The cylindrical stopper 18 is not introduced into the prismatic slide hole portion 21 a of the inner sheath 21, but comes into contact with the distal end surface of the inner sheath 21. As a result, the polishing wire 16 is stopped at a predetermined position in the sheath 20. This stopped state is a position where the weight 17 stops at the distal end opening of the sheath 20.

  Further, the inner sheath 21 is connected to a motor shaft of a motor 25 disposed in the rotation driving unit 10 (see FIG. 1), and the rotation is transmitted from the motor 25 to rotate in the sheath 20. At this time, the prism stopper 22 in the inner sheath 21 rotates following the rotation of the inner sheath 21 by the prism slide hole 21 a of the inner sheath 21.

  That is, the rotation of the motor 25 is transmitted to the inner sheath 21, and is transmitted from the prism stopper 22 that rotates following the rotation to the shaft 19, the cylindrical stopper 18, the polishing wire 16, and the weight 17. As shown in FIG. 5, the transmitted rotation causes a centrifugal force to act on the circularly moving weight 17, and the polishing wire 16 resists the urging force of the spring 23 from the opening of the sheath 20 in accordance with the rotational speed. Extend gradually.

  Further, since the polishing wire 16 has a predetermined flexibility and has a slightly curved shape, a slight twist is generated by the rotation from the motor 25. 2a expands in the outer circumferential direction.

  At this time, the cylindrical stopper 18, the shaft 19, and the rectangular column stopper 22 are also pulled toward the tip side against the urging force of the spring 23. Therefore, the spring 23 is in an extended state. The driving operation of the motor 25 of the rotation driving unit 10 is performed by switches 8b provided in the operation unit 4.

  As shown in FIG. 6, for example, the endoscope 1 according to the present embodiment configured as described above rotates the polishing wire 16 along the opening of the hole 31a to thereby end the end surface of the hole 31a of the sample 31. It is possible to polish and remove the burrs 100 and the like that are objects to be polished generated by lathe processing. That is, the burrs 100 can be polished and removed by the irregularities of the plurality of metal wires formed on the surface of the rotating polishing wire 16 coming into contact with the burrs 100 and the like.

  That is, the polishing wire 16 can polish the entire region of the track area in the length range in the long axis direction formed by the circular motion of the weight 17. Therefore, the endoscope 1 has an optimum configuration for a wide range of polishing processes without moving the tip 2a when removing the burr 100 or the like generated in the opening of the sample 31, as shown in FIG. It has become.

  Further, since the endoscope 1 can adjust the centrifugal force of the weight 17 by changing the rotation speed of the motor 25, the amount of extension of the polishing wire 16 from the distal end portion 2a can be changed. . Thereby, the endoscope 1 can easily change the polishing range depending on the extension amount of the polishing wire 16.

  When the rotation of the motor 25 is stopped, the polishing unit 16 reduces the centrifugal force of the weight 17, and the weight 17 does not move circularly. It is pulled back to the insertion channel 3 a side and is housed in the sheath 20 together with the weight 17.

  Furthermore, in the endoscope 1, the hole formed in the inner sheath 21 is not limited to a prismatic shape as shown in FIG. 7, but is formed into a cylindrical slide hole 21b having a concave portion. You may use the cylindrical stopper 25 provided with the convex part 25a engaged with the said recessed part which can freely advance / retreat within the part 21b. Further, when the stopper 25 slides forward, a stopper portion that abuts and restricts forward movement may be disposed on the inner sheath 21.

  Furthermore, in the present embodiment, the polishing unit 16, the motor 25, and the like are configured integrally with the endoscope 1. However, the endoscope 1 can be inserted into and removed from the treatment instrument channel 3a of the endoscope 1 to be detachable. It is good also as a polish device simple substance except the composition of these.

  In each embodiment, the spring 23 for urging the polishing unit 16 in the proximal direction is continuously provided. However, the urging member 16 is not limited to the spring 23, and other urging members may be used or the polishing unit 16 may be manually operated. You may use the mechanism which slides back and forth.

  As described above, the industrial endoscope apparatus 1 described in the present embodiment can easily polish an object to be polished (such as a burr) discovered by endoscopy regardless of the position and state thereof. In addition to being able to perform the polishing work over a wide range, the work efficiency is improved.

  In the present embodiment, the endoscope 1 having the above-described configuration is taken as an example, but the present invention can be applied to various rigid endoscopes as a matter of course. Moreover, the structure of each said grinding | polishing part should just be what can grind | harden hard materials, such as a metal, It is set as various structures, such as a grindstone, a cage | basket, and a grinding | polishing brush, and is specifically limited to the above-mentioned embodiment. There is nothing.

  The invention described above is not limited to the present embodiment, and various modifications can be made without departing from the scope of the invention at the stage of implementation. Furthermore, the present embodiment includes various stages of the invention, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements.

  For example, even if some constituent elements are deleted from all the constituent elements shown in this embodiment, the problems described in the column of problems to be solved by the invention can be solved, and the effects described in the effect of the invention Can be obtained as an invention.

1 is an overall configuration diagram showing an industrial endoscope apparatus according to an embodiment of the present invention. The figure which shows the grinding | polishing wire part accommodated in the front-end | tip part of an insertion part similarly. The figure which shows the state which the polishing wire extended from the front-end | tip part by rotation. The figure for demonstrating each structure for extending the polishing wire arrange | positioned in the treatment tool penetration channel of an insertion part from a front-end | tip part, and rotating it. The figure for demonstrating the effect | action that a polishing wire extends from the front-end | tip part of an insertion part. The figure for demonstrating the effect | action which grind | polishes and removes to-be-polished treatment parts, such as a burr | flash, with an industrial endoscope apparatus. The figure for demonstrating the modification structural example for extending and rotating the polishing wire arrange | positioned in the treatment tool penetration channel of an insertion part from a front-end | tip part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Industrial endoscope apparatus 2a ... Tip part 2b ... Bending part 2c ... Flexible tube part 3a ... Treatment instrument insertion channel 3 ... Insertion part 4 ... Operation part DESCRIPTION OF SYMBOLS 5 ... Main body apparatus 10 ... Rotation drive part 16 ... Polishing wire 17 ... Weight 18 ... Cylindrical stopper 19 ... Shaft 20 ... Sheath 21a ... Square pillar slide hole part 21 .... Inner sheath 22 ... Square column stopper 23 ... Spring 24 ... Base 25 ... Motor 31a ... Hole 31 ... Sample 100 ... Burr

Claims (7)

An imaging unit at the distal end, an insertion part through which the treatment instrument insertion channel is inserted, and
A polishing part that is disposed in the treatment instrument insertion channel and that extends from the tip part, and polishes the object to be polished by rotating,
A weight that is disposed at the tip of the polishing part and extends the rotating polishing part from the tip;
An operation unit including a drive unit that applies a rotational driving force to the polishing unit;
An industrial endoscope apparatus comprising:   The industrial endoscope apparatus according to claim 1, further comprising a biasing member that is connected to the polishing unit and biases the polishing unit in the proximal direction.   The industrial endoscope apparatus according to claim 1, wherein the polishing unit is a wire.   The industrial endoscope apparatus according to claim 3, wherein the wire has a predetermined length and flexibility and has a curved shape.   5. The polishing portion according to claim 1, wherein the polishing portion expands in an outer peripheral direction of the tip portion against the biasing member by a centrifugal force generated in the weight by the rotation. The industrial endoscope apparatus according to 1. A polishing unit that can be inserted into the treatment instrument insertion channel of the industrial endoscope apparatus and that extends from the distal end of the endoscope, and polishes an object to be polished by rotating,
A weight that is disposed at the tip of the polishing part and extends the rotating polishing part from the tip;
A driving unit for applying a rotational driving force to the polishing unit;
A polishing apparatus comprising:   The polishing apparatus according to claim 6, further comprising an urging member that is connected to the polishing portion and urges the polishing portion in the proximal direction.

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