JP4672393B2 - Dish processing machine - Google Patents

Description

  The present invention relates to a dish processing apparatus.

In structures such as aircraft and high-speed vehicles, joining by rivets is performed. Therefore, a rivet hole is processed in the joint. In particular, in joining related to the outer plate, a rivet is further used in consideration of aerodynamic characteristics, so that the rivet hole is dished.
Most of this drilling work is carried out by mechanization with an industrial robot or the like, but it is difficult to mechanize, for example, at the periphery, etc., for example, manually using an apparatus as shown in Patent Document 1. It is done.
When dishing is performed with the apparatus disclosed in Patent Document 1, a dishing tool, for example, a microstop counter is attached, and the tool is applied to and pressed against a rivet hole formed in a workpiece such as an outer plate. Work.

JP-A-8-71823 (FIGS. 1 to 3)

However, in the one shown in Patent Document 1, it is necessary to perform a drilling operation, and it is necessary to use a large drill to obtain a torque necessary for drilling. For this reason, there is a problem that the weight is increased and it is difficult to handle.
Further, since it is necessary to press the entire apparatus against the workpiece during processing, there is a problem that the burden on the worker increases particularly in the case of an upward work, for example.
Furthermore, if the rigidity of the work is low, the work will be deformed when the device is pressed, and the amount of deformation will vary depending on the operator or work location, or the tool will be shaken. There was a problem.

  In view of the above problems, an object of the present invention is to provide a dishing machine that can reduce the weight and improve workability and perform a stable dishing operation.

In order to solve the above problems, the present invention employs the following means.
That is, the dish processing apparatus according to the present invention is provided so as to be able to protrude and retract in a processing direction orthogonal to the clamp surface from a main body having a clamp portion protruding to the side and a clamp surface provided in the clamp portion. A pin, a micro-stop counter having a tip surface facing the clamp surface and attached to the main body so as to be movable in the processing direction; provided on the micro-stop counter; A cutter for panning having a recess that fits with the tip of the pin at the tip, and a drill that is attached to the main body so as to be movable in the processing direction and rotates the cutter of the microstop counter; And a moving means for operating the micro stop counter in the processing direction.

The clamp part and the micro stop counter are positioned so as to sandwich the workpiece. Position the clamp surface on one side of the workpiece and insert the pin into the hole. In this state, when the micro stop counter is moved toward the clamp surface, the workpiece is clamped by the tip surface and the clamp surface of the micro stop counter. At this time, since the tip end of the pin is fitted into the concave portion of the tip end portion of the cutter, the cutter is supported at the root portion and the tip end portion is supported by the pin.
When the drill is operated and the cutter is rotated while the drill is moved to the clamp surface side along the machining direction, the cutter is moved to the clamp surface side while being supported by the pin, and is moved to the other surface side of the hole. The dish pan can be processed.

Thus, since both ends of the cutter are supported by the root portion and the pin, the cutter can be prevented from being shaken even at a high rotational speed, and a drill having a high rotational speed can be used. Further, since no drilling operation is performed, high torque is not required. For this reason, since an ultra-small drill can be used, an apparatus can be reduced in weight.
Moreover, since the clamp part and the micro stop counter clamp the workpiece, the main body is supported by the workpiece. For this reason, since the light drill is basically moved at the time of the dish removing operation, for example, even when working upward, it can be performed easily and workability can be improved.
Further, as described above, since the cutter is supported on both the front and rear sides and guided by the pins, it is not considered that the cutter is shaken. In addition, it is only necessary to project the cutter by a predetermined amount set in advance by the micro stop counter, so that a dish with a constant shape and size can always be stably processed.

  In the dish pan according to the present invention, the clamp surface is provided such that a position in the processing direction can be adjusted.

  In this way, the clamp surface is provided so that the position in the machining direction can be adjusted, so it is easy to change the thickness of the workpiece without adjusting the micro stop counter and drill side by adjusting the position of the clamp surface It can correspond to.

The moving means rotates to a first link pivotally supported by a first fulcrum part attached to the main body and a second fulcrum part attached to the micro stop counter so as to be movable in the processing direction. For a second link that is freely supported, a connecting portion that rotatably connects the first link and the second link, and a fulcrum line that connects the first fulcrum portion and the second fulcrum portion. and a drive mechanism for moving the connecting portion in a direction intersecting Te, of movement which the connecting part is separated from the fulcrum line, one movement, characterized in that it is limited to small range.

As described above, the first link rotatably supported by the first fulcrum part attached to the main body and the second link rotatably supported by the second fulcrum part attached to the micro stop counter are provided. Since they are pivotably connected to each other by the connecting portion, if the connecting portion is moved in the direction crossing the fulcrum line by the driving means, the fulcrum distance between the first fulcrum portion and the second fulcrum portion can be changed. it can.
When the fulcrum distance fluctuates, the second fulcrum moves with respect to the first fulcrum attached to the main body, and the microstop counter to which the fulcrum is attached moves in the machining direction.
Then, among connecting portion moves away from the fulcrum line, since the movement of the one is limited to small range, the limited movement of the one connecting portion position, dissociation from the fulcrum line of the connecting portion Is very small, and the fulcrum distance is substantially maximum. Moreover, since movement to one side is restricted and the fulcrum distance to the other is increased, it does not move with a slight disturbance, so it can be a stable and firm clamping position for clamping the workpiece. it can.

In the dish removing device according to the present invention, a first handle and a second handle are provided on both sides of the main body.
If it does in this way, since it can operate using both hands, workability | operativity can be improved further.

In the dish pan according to the present invention, the moving means is attached to the first handle, and the second handle holds the drill.
In this way, the second handle can be held with one hand and the device can be supported, and the clamping means can be operated by operating the moving means with the other hand, and then the first handle is held and the device is supported. Since the drill can be moved with the other hand holding the second handle, workability can be improved.

According to the present invention, since the drill can be an ultra-small one, the apparatus can be reduced in weight.
In addition, since the light drill is basically moved, for example, even when working upward, it can be performed easily and workability can be improved.
Further, since the cutter is supported on both the front and rear sides and guided by the pins, it is possible to stably process a dish with a constant shape and size at all times.

Hereinafter, the dish-taking apparatus 1 concerning one Embodiment of this invention is demonstrated using FIGS.
1 to 3 are front views showing an overall schematic configuration of the dishing apparatus 1 according to the present embodiment. FIG. 1 shows a state in which the clamp is released, FIG. 2 shows a state in which the clamp is released, and FIG. It shows the state where the drill is moved after clamping.
The dish removing device 1 includes a main body 3, a micro stop counter 5, a drill 7, a moving means 9, a first handle 11, and a second handle 13.

The main body 3 is a plate-like body in which one end is substantially C-shaped and the lower end of the C-shape is extended toward the other end. A clamp 15 is provided at the upper end of the C-shaped body 3 so as to protrude.
FIG. 4 is an enlarged sectional view showing the periphery of the clamp portion 15. The structure of the clamp part 15 will be described with reference to FIG.
The main body 3 in the clamp portion 15 has a substantially cylindrical shape whose axial direction is along the extending direction of the main body 3, and a through hole 17 is formed at the approximate center thereof.
A clamp member 19 having a substantially two-stage cylindrical shape whose one end is enlarged in diameter is attached to the through hole 17. A clamp surface 21, which is a surface orthogonal to the axial direction (processing direction) 20, is formed at the end of the clamp member 19 on the enlarged diameter portion side.

The other end side of the clamp member 19 is threaded and is screwed into a nut 23 fixed to the main body 3. A cap 25 is detachably fixed to the other end of the clamp member 19.
A guide hole 27 having an enlarged diameter portion is provided in the middle of the axial center portion of the clamp member 19 and the cap 25. A pin 31 provided with a partition portion 29 that is enlarged in the middle is inserted into the guide hole 27. The pin 31 is attacked so as to be pressed against the clamp surface 21 side by a compression spring 33 attached to the enlarged diameter portion of the guide hole 27 located on the cap 25 side of the partition portion 29.

The micro stop counter 5 includes a cover 35 having a substantially cylindrical shape, a cutter 37, a cutter 37, and a drive unit (not shown) that receives the driving force from the drill 7 and rotates the cutter 37 so as to project and retract in the axial direction. Is provided.
A guide part 39 protrudes from the tip of the cutter 37, and an inverted conical recess 41 that fits with the tip of the pin 31 is provided at the tip of the guide 39 (see FIG. (See FIG. 4).
The front end surface 43 of the cover 35 is configured so as to be opposed to the clamp surface 21.
The drive unit is configured such that the amount of the cutter 37 can be adjusted, and the drive unit can be moved relative to the drill 7.

The micro stop counter 5 is integrally held by a holding member 45 provided so as to cover the periphery. The holding member 45 is supported by a first guide rail 47 provided on the main body 3 so as to extend in the processing direction so as to be moved along the first guide rail 47.
A guide pin (second fulcrum) 49 is attached to the end of the holding member 45 on the main body side. The guide pin 49 is configured to be movable along a guide hole 51 formed in the main body 3 so as to be long in the processing direction 20.

The drill 7 includes a drill main body 53 with a built-in drive mechanism, a drill shaft 55 that transmits rotational force to the microstop counter 5, and an air valve 57 connected to an air source such as a compressor (not shown). It has been.
A switch 59 for opening and closing the air valve 57 is provided on the side of the air valve 57.
The drill body 53 is held by the second handle 13. The second handle 13 is supported by a second guide rail 61 provided on the main body 3 so as to extend in the processing direction so as to be moved along the second guide rail 61.

A trigger 63 having a substantially inverted L shape is rotatably attached to the second handle 13 by a pin 65. One end of the trigger 63 is positioned so as to engage with the switch 59, and is biased away from the switch 59 by a compression spring 67 interposed between the second handle 13 and the trigger 63. Yes.
The first handle 11 is provided on the opposite side of the second handle 13 across the main body 3 and is fixed to the main body 3.

Next, the moving means 9 will be described.
The moving means 9 includes a main body link (first link) 71 having one end rotatably attached to a main body pin (first fulcrum) 69 fixed to the main body 3, and one end rotating around the guide pin 49. A movable link (second link) 73 that is movably attached, a connecting pin (connecting point) 75 that rotatably connects the free ends of the main body link 71 and the moving link 73, and a connecting pin 75 are connected to the main body pin 69. And a drive mechanism 77 that moves in a direction intersecting with the fulcrum line CL connecting the axis centers of the guide pins 49.

The drive mechanism 77 includes an operation lever 79, an operation adjustment link 81, and a clamp release lever 83.
The motion adjustment link 81 has a substantially inverted L shape. The intersection of the long side and the short side of the motion adjustment link 81 is rotatably supported by a fixing pin 87 attached to a bracket 85 fixed to the first handle 11. The tip of the short side of the motion adjustment link 81 is pulled by a tension spring 89 attached to the first handle 11, and the motion adjustment link 81 is biased to rotate in a direction away from the main body 3.

The operation lever 79 is curved at a portion away from the main body 3 and has a protrusion at a portion located on the main body 3 side with respect to the intermediate portion, but is generally linear. The main body 3 side of the operation lever 79 is rotatably supported by the connection pin 75, and the protrusion is connected to the distal end portion of the long side of the operation adjustment link 81 and the connection pin 80 so as to be rotatable relative to each other.
The clamp release lever 83 extends substantially linearly, and a portion on the main body 3 side is connected to a tip portion of a short side of the operation adjustment link 81 so as to be rotatable with respect to each other.

The dishing process operation of the dishing apparatus 1 according to this embodiment described above will be described.
As an object to be dished by the dishing machine 1, for example, there is a joint portion 95 that joins the outer plates 91 and 93 of the aircraft as shown in FIG.
An example of the structure of the joint portion 93 is shown in FIG. In the joint portion 95, the outer plates 91 and 93 are overlapped, and the aggregate 97 may be disposed on the inner outer plate 91 on the inner side.
In this case, for example, holes for riveting are formed at positions A, B, C, and D. Then, dishing is performed on the outside of the outer plate 93 with respect to these holes.

The dishing process at the position A will be described.
First, the dish removal processing apparatus 1 is in the clamp release state of FIG. 1 and rotates the cap 25 so that the position of the clamp surface 21 matches the thickness of the outer plate 91 and the outer plate 93 (work W) at the position A. Adjust.
In this state, the dish processing apparatus 1 is brought into the processing site, and the clamp portion 15 is positioned on the inner surface side of the outer plate 91 (work W) and the microstop counter 5 is positioned on the outer surface side of the outer plate 93 (work W). Then, the pin 41 is inserted into the hole.

Next, in a state where the second handle 13 is held by one hand, the free end side of the operation lever 79 is moved downward (first handle 11 side) by the other hand. Then, the connecting pin 75 tends to move upward (in a direction away from the first handle 11). However, since the movement of the connecting pin 75 is restricted by the main body link 71, the connecting pin 75 eventually moves to the right (the drill 7 side).
When the connecting pin 75 moves to the right, the angle formed by the main body link 71 and the moving link 73 gradually increases, and the distance (fulcrum distance) between the axial center of the main body pin 69 and the axial center of the guide pin 49 increases. To go. Accordingly, since the main body pin 69 is fixed to the main body 3, the guide pin 49 moves upward along the guide hole 51.
As the guide pin 49 moves, the holding member 45 and the micro stop counter 5 to which the guide pin 49 is attached move upward.

At this time, as the connecting pin 75 moves to the right, the operation lever 79 moves to the right as a whole. Accordingly, the connection pin 80 moves, and the operation adjustment link 81 rotates clockwise around the fixed pin 87.
The movement of the connecting pin 75 to the right is limited by the operation adjustment link 81. That is, the limit position is a position where the distance between the fixing pin 87 and the connecting pin 75 is maximum, in other words, a position where the axial centers of the fixing pin 87, the connecting pin 80 and the connecting pin 75 form a straight line.

In this embodiment, as shown in FIG. 2, this position is configured such that the axial center position of the connecting pin 75 is located to the right of the fulcrum line CL by the distance e. That is, the rightward movement of the connecting pin 75 from the fulcrum line CL is limited to the distance e.
Since the distance e is set to be very small, the fulcrum distance becomes substantially maximum when the connecting pin 75 is moved so far. By this time, the tip surface 43 of the micro stop counter 5 is in contact with the outer surface of the workpiece W and is pressed against the workpiece W. Thereby, the workpiece W is pressed and clamped by the clamp surface 21 and the tip surface 43.

Further, in this process, the pin 31 is fitted into the recess 41 of the cutter 37.
At this time, the center of the axis of the pin 31 and the cutter 37 are substantially coincident with each other, and the pin 31 is inserted into the hole. Therefore, even when the micro stop counter 5 is moved upward, the cutter 37 is not particularly aimed at the position. Matches the position of the hole. When the pin 31 and the concave portion 41 are fitted, the cutter 37 is supported from both sides in the axial direction by the driving portion (root portion) of the microstop counter 5 and the pin 31.
Thus, since both ends of the cutter 37 are supported by the root portion and the pin 31, the cutter 37 can be prevented from shaking even at a high rotational speed, and the drill 7 having a high rotational speed can be used. Further, since no drilling operation is performed, high torque is not required. For this reason, since the drill 7 can use a very small thing, an apparatus can be reduced in weight.

  When the workpiece W is clamped in this way, the movement of the connecting pin 75 to the right is restricted by the motion adjustment link 81, while the movement to the left (in the direction of the fulcrum line) has a large fulcrum distance. Therefore, the workpiece W is surely and stably clamped.

Then, when the first handle 11 is held with the other hand and the second handle 13 is held with the trigger 63 with one hand, the trigger 63 is centered on the pin 65 against the compression spring 67 as shown in FIG. Rotate clockwise and switch 59 is turned on.
When the switch 59 is turned on, the air valve 57 is opened, compressed air is supplied from an air source (not shown), and the drill shaft 55 is rotated.
In this state, when the second handle 13 is moved upward by one hand, the cutter 37 of the micro stop counter 5 is pushed upward (work W side) while rotating. At this time, the pin 31 moves together with the cutter 37 while supporting and guiding it.
The cutter 37 abuts on the outer surface (lower surface) of the workpiece W and performs dishing around the hole.

At this time, since the protrusion amount of the cutter 37 is determined to be a predetermined amount by the setting of the micro stop counter 5, the dishing depth is also determined thereby.
In this way, the cutter 37 is projected by a predetermined amount set in advance by the micro stop counter 5, and the cutter 37 is driven from both sides in the axial direction by the driving portion (root portion) of the micro stop counter 5 and the pin 31. Since it is not supported and shaken, it is possible to stably process a dish with a constant shape and size at all times even if the place or operator changes.

Thus, since the light drill is basically moved during the dish removing operation, for example, even when working upward, it can be performed easily, and workability can be improved.
Moreover, since the drive mechanism 77 of the moving means 9 for clamping is attached to the first handle 11, while the drill 7 is attached to the second handle 13, both hands can be used effectively and workability can be further improved. .

When the dishing process is completed, the trigger 63 is released, the air valve 57 is closed, the rotation of the drill shaft 55 is stopped, the second handle 13 is lowered, and the drill 7 is returned to the original position.
Next, the workpiece W is released from the clamp. This release method will be described.
During the above-described clamping operation, as the motion adjustment link 81 rotates clockwise, its short side moves upward. Accordingly, the clamp release lever 83 is positioned between the operation lever 79 and the operation adjustment link 81 as shown in FIG.
When the left end (end opposite to the main body 3) of the clamp release lever 83 is moved downward, the right end (end of the main body 3 side) of the clamp release lever 83 is moved upward, and leftward from the connection pin 80 of the operation lever 79. This will push up the lower surface.

When the left end of the operation lever 79 is raised, the connection pin 80 is also raised, the operation adjusting link 81 is swung counterclockwise, and the distance between the fixed pin 87 and the connecting pin 75 is shortened. That is, the connecting pin 75 is moved to the left side.
When the connecting pin 75 moves to the left beyond the fulcrum line CL, the angle formed by the main body link 71 and the moving link 73 gradually decreases, and the fulcrum distance becomes shorter. Then, since the main body pin 69 is fixed to the main body 3, the guide pin 49 moves downward along the guide hole 51.
By the movement of the guide pin 49, the holding member 45 and the micro stop counter 5 to which the guide pin 49 is attached move downward, and the clamp is released.
This completes the dishing process at position A.

Next, for example, when dishing is performed at the position B, the aggregate 97 is overlapped with the outer plates 91 and 93 at the position B, so that the thickness is larger than that at the position A.
In this case, the clamp member 19 is rotated by the cap 25 and moved upward with respect to the nut 23 (main body 3), and the position of the clamp surface 21 is moved upward by the thickness of the aggregate 97.
After this, the dishing process at the position B is performed in the same manner as the dishing process at the position A described above.
Thus, since the clamp surface 21 is provided so that the position in the machining direction 20 can be adjusted, the micro stop counter 5, the moving means 9 and the drill 7 side can be adjusted by adjusting the position of the clamp surface 21. Therefore, it is possible to easily cope with the thickness change of the workpiece W.

In this embodiment, a link mechanism is used as the moving means 9, but the present invention is not limited to this, and it may be an actuator by hydraulic pressure or pneumatic pressure, or a mechanical type such as a rack and pinion. Also good.
In the present embodiment, the rightward movement of the connecting pin 75 is limited by the link mechanism. However, the present invention is not limited to this, and may be limited by using a stopper, for example.

BRIEF DESCRIPTION OF THE DRAWINGS It is a front view which shows the whole schematic structure of the dish preparation apparatus concerning one Embodiment of this invention, and shows the state of clamp release. BRIEF DESCRIPTION OF THE DRAWINGS It is a front view which shows the whole schematic structure of the dish-taking apparatus concerning one Embodiment of this invention, and shows the state of a clamp. BRIEF DESCRIPTION OF THE DRAWINGS It is a front view which shows the whole schematic structure of the dish preparation apparatus concerning one Embodiment of this invention, and shows the state at the time of dish preparation operation | work. It is sectional drawing which expands and shows the periphery of the clamp part concerning one Embodiment of this invention. It is a perspective view which shows the structure processed using the dish-taking apparatus concerning one Embodiment of this invention. It is XX sectional drawing of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Dishes processing apparatus 3 Main body 5 Micro stop unter 7 Drill 9 Moving means 11 1st handle 13 2nd handle 15 Clamping part 20 Processing direction 21 Clamp surface 31 Pin 37 Cutter 43 Tip surface 49 Guide pin 69 Main body pin 71 Main body link 73 Movement Link 75 Connecting pin 77 Drive mechanism CL Support line

Claims (5)

A body having a clamp portion projecting laterally;
From the clamp surface provided in the clamp part, a pin provided so as to be able to protrude and retract in a processing direction orthogonal to the clamp surface;
A micro-stop counter having a tip surface disposed opposite the clamp surface and attached to the main body so as to be movable in the processing direction;
A cutter for dishing, which is provided in the microstop counter, is capable of projecting a predetermined amount from the tip surface in the processing direction, and has a recess fitted to the tip of the pin at the tip;
A drill attached to the main body so as to be movable in the processing direction, and rotating a cutter of the micro stop counter;
Moving means for operating the micro stop counter in the machining direction;
The dish processing apparatus characterized by the above-mentioned.   The dishing machine according to claim 1, wherein the clamp surface is provided such that a position in the machining direction can be adjusted. The moving means rotates to a first link pivotally supported by a first fulcrum part attached to the main body and a second fulcrum part attached to the micro stop counter so as to be movable in the processing direction. For a second link that is freely supported, a connecting portion that rotatably connects the first link and the second link, and a fulcrum line that connects the first fulcrum portion and the second fulcrum portion. And a drive mechanism for moving the connecting portion in the intersecting direction,
Of movement the coupling portion away from the fulcrum line, one movement, pan up processing apparatus according to claim 1 or claim 2, characterized in that it is limited to small range.   4. The dish processing apparatus according to claim 1, wherein a first handle and a second handle are provided on both sides of the main body. 5.   The dishing apparatus according to claim 4, wherein the moving means is attached to the first handle, and the second handle holds the drill.

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