JP6448023B2 - Scallop drilling device - Google Patents

Description

  The present invention relates to a scallop drilling device equipped with a motor (drilling motor) capable of opening a hole for inserting a culture shell locking tool into a scallop.

  A motor M (FIG. 12) for rotating a drill is used in a drilling machine for making a hole B (FIG. 13 (b)) for inserting an aquaculture shell locking tool into the scallop A (FIG. 13 (a)). Yes. As an example of a drilling machine, many set tools that can be held vertically with scallop ears facing down are attached to an endless chain, and the scallops that are clamped and held by the set tool are conveyed to a predetermined position by the rotation of the endless chain. When it comes, the motor moves forward, and the scallop being transported by the endless chain is pressed against the rotating drill installed at the tip of the motor to make a hole in the scallop. Some scallops are pierced from one hole to the next by repetitive repetition of the scallops being transported, the motor being advanced, the scallops being pressed against the drill, and the motor being retracted.

Japanese Patent No. 5052118

  When a hole is made by the motor M, shellfish powder D is generated and adheres around the chuck S of the motor M as shown in FIG. The powder is not particularly problematic when the motor M is continuously rotating, but if it is left unused without being used for a day, it will harden and the rotating shaft and chuck S will rotate when the motor M is restarted. There are many difficulties, and smooth drilling is not possible. In the situation described above, the same situation may occur when chips are attached to a metal product or a plastic product. In addition, since the motor M is overheated by continuous rotation for a long time, it is difficult to rotate the motor M for a long time, or if it is operated for a long time, it causes damage or failure.

  The motor of Patent Document 1 improves ventilation in the motor to prevent adhesion of chips and dust, and prevents overheating, and the scallop punch of Patent Document 1 is equipped with the motor. is there. These motors and scallop punches solve the above problems.

  The problem to be solved by the present invention is to increase the number of holes per hour using the scallop punch and to increase the drilling efficiency.

The scallop drilling device of the present invention is a scallop drilling device that transports scallops one by one by an endless transport body and drills holes in each scallop shell with a drill blade, an endless transport body that transports the scallop shell, and the endless transport body A setting tool that is installed in the conveying direction and has a drilling motor that opens a hole in the scallop being conveyed, and a moving mechanism that reciprocates the drilling motor toward the endless conveying body, and the endless conveying body can set the scallop Are provided at intervals in the moving direction of the endless transport body. Each of these two endless transport bodies is elongated, and the fixed piece and the movable piece are placed side by side in one device case with the same orientation, the shell transport direction rear part in the device case, and the transport direction front part. The two endless transport bodies are arranged at the same or substantially the same height, and the side-by-side spacing between the two endless transport bodies is outside the front portion in the transport direction. A single worker is set at an interval at which scallops can be set on the individual setting tools in the front part of the two endless transport bodies in the transport direction.

  The endless transport body is transported at a low speed when drilling with a drill blade, and at other times it is transported at a higher speed than when transporting at a low speed, and is drilled with a drill blade. It moves at a low speed, and moves at a higher speed than at a low speed movement at other times, and the low speed movement and the high speed movement can be switched in synchronization with the switching between the low speed conveyance and the high speed conveyance of the endless carrier.

The scallop drilling device of the present invention has the following effects.
(1) Since two endless transport bodies are provided, the efficiency of the drilling operation is improved.
(2) Since the two endless transport bodies and the two perforation motors are provided, the total number of perforations is the same as the endless transport body and the hole even if the operating speed of each endless transport body and the perforation motor is slowed down. It is improved compared to the case of a set of opening motors. Even if two workers put scallops on each endless transporter by slowing the operating speed of the endless transporter and the drilling motor, the work efficiency is improved compared to the case of one pair, and the labor burden on the operator Is reduced.
(3) Since a motor equipped with a drill blade is arranged at the tip of the endless carrier that conveys the scallop shell, a hole is automatically made in the scallop shell by transporting the scallop shell and pressing it against the drill blade. Further, since the gas passes through the gas passage in the motor and is exhausted to the outside from the exhaust port of the motor housing, the motor does not overheat even if the holes are continuously drilled.
(4) The endless carrier can be switched between high-speed conveyance and low-speed conveyance, and the article to be conveyed is pressed against the drill blade during low-speed conveyance, so that the article is not easily chipped or broken. Drilling is possible, and there are few drilling defects and the yield is improved. Since it is transported at high speeds other than drilling, the transport efficiency is also good.
(5) Since a gas passage is formed in the motor housing and the gas supplied into the gas passage is exhausted from the exhaust port formed in the housing to the outside of the motor housing, the drilling motor is It is hard to overheat because it is cooled by the gas passing through the gas passage.
(6) If a drilling motor with a drill blade detachable from the motor housing and an exhaust port opened on the chuck side of the motor housing is used, a drill equipped on the chuck by exhausting air from the exhaust port Chips, dust, etc. near the blade are blown away, and they do not adhere to the rotating shaft.

Sectional drawing which shows an example of the motor for drilling used for the scallop shell drilling apparatus of this invention. The exploded explanatory view of the drilling motor used for the scallop drilling device of the present invention. (A) is the disassembled perspective view which looked at the rotating shaft front-end part of a rotor, the bearing, and the front cover from the back side of the front cover, (b) is assembly of the rotating shaft front-end part, bearing, and front cover of (a). The back side perspective view after. Sectional drawing of the front cover and chuck | zipper part of the motor for drilling used for the scallop shell drilling apparatus of this invention. The schematic side view of the scallop shell drilling apparatus of this invention. The side sectional view at the time of motor advance of the scallop drilling device of the present invention. The motor sectional view of the scallop drilling device of the present invention, a side sectional view during drilling. The side sectional view at the time of motor retreat of the scallop drilling device of the present invention. (A) is a front schematic diagram of the scallop drilling device of the present invention, (b) is a front view of a state in which both side plates of the lower accommodating portion of the scallop drilling device are opened upward and locked with a chain. It is another example of the scallop drilling device of the present invention, and is a plan view when endless transport bodies are arranged in two rows horizontally. It is another example of the scallop drilling device of the present invention, and is a side view when endless transport bodies are vertically arranged in two rows. Schematic of the state in which cutting powder adhered to a conventional motor. (A) is a front view of a scallop with a hole, and (b) is a side view thereof.

(Embodiment of scallop drilling device)
An example of the scallop drilling device of the present invention is shown in the figure. The scallop drilling device shown in these figures is for making a hole B for inserting a culture shell locking tool into one part of the side of the ear (FIG. 13) of the scallop A (FIG. 13). As shown in FIG. 13, an endless transport body 51 that continuously transports scallops A set one by one, and a punching device that forms holes B in the shell A transported by the endless transport body 51 as shown in FIGS. Is provided with a device case 41. The device case 41 is partitioned into a lower housing part 42 and an upper housing part 43, and the endless transport body 51 is equipped with a set tool 50 on the transport body 40, and the back portion 38 (FIG. 6) of the transport body 40 is on the bottom. The front portion 39 (FIG. 5) protrudes outside the lower housing portion 42 and enters the inside of the housing portion 42. The cover 44 of the upper accommodating portion 43 is a box shape having a downward opening, and upper corner portions 44a (FIG. 9A) on both side surfaces are curved in an arc shape. An illuminating device 45 such as a fluorescent lamp and a light bulb is attached to the front surface of the upper housing portion 43, and the endless transport body 51 in the lower front is brightly illuminated by the illumination so that the scallops are set on the set device 50 of the endless transport body 51. It makes it easier to set and do other work. A cover is provided on the illuminating device 45 to protect the illuminating device 45, and the inner surface of the cover is used as a reflecting surface so that light from the illuminating device 45 is reflected downward. A power switch 46, an adjustment volume 47 for adjusting the transport speed of the transport body 40 by adjusting the rotational speed of the drive motor, and a power display lamp (pilot lamp) 48 are provided on the front surface of the upper housing portion 43, and the company name is displayed. A seal 49 is stretched.

  As for the endless conveyance body 51, many setting tools 50 are attached to the conveyance body 40 (chain conveyor in FIG. 6) at regular intervals. The set tool 50 is configured such that the movable piece 52 and the fixed piece 53 are opposed to each other to constitute a set, and the scallop A is disposed (set) vertically between the movable piece 52 and the fixed piece 53 with its ears facing down. The movable piece 52 moves to the fixed piece 53 side when the carrying body 40 is rotated to a predetermined position, and the scallop A is sandwiched and fixed between the two pieces 52 and 53. The transport body 40 is accommodated in the transport body case 40a, moves upward in the inside thereof, rotates downward by folding downward at the lower folding portion, and moves downward by rotating upward at the upper folding portion, and moves upward and horizontally. In addition, the scallop A can be transported when moving horizontally. A planar U-shaped handle 40b is attached to both outer side surfaces of the carrier case 40a.

  A drilling motor 55 is accommodated in the lower accommodating portion 42. The perforation motor 55 uses the perforation motor shown in FIGS. 1 to 4, and is a bracket below the moving body 69 set on the upper and lower slide rails 68 arranged and fixed in the upper housing portion 43. It is attached to 57 and is suspended below the ceiling 56 of the lower housing part 42. This perforation motor 55 is driven by an inverter so as to rotate more than 30,000 revolutions per minute. A sprocket 58 for tension is arranged and fixed under the lower housing portion 42. An exhaust fan 60 is attached to the back wall 59 (FIG. 5) of the lower housing part 42. Two round bar-shaped handles 42 a (FIG. 5) are attached in parallel to positions on both sides of the lower wall portion 42 in the width direction outside the back wall 59. Both side plates 42b (FIG. 9B) of the lower housing portion 42 are opened to the upper side outside, and when opened, the locking chain 42c is locked to the ceiling of the upper housing portion 43 so as not to be lowered. Thus, maintenance, inspection, etc. of the equipment accommodated in the lower accommodating portion 42 can be facilitated.

  As shown in FIG. 6, the upper housing portion 43 is divided into a front housing portion 62a and a rear housing portion 62b by a partition plate 61. A driving motor 63, a crankshaft 64, and a crank disk 65 are installed in the front housing portion 62a. The inverter 66 is disposed and fixed in the rear housing portion 62b. The cover 44 (FIG. 9A) of the upper housing portion 43 can be removed upward. By detaching, the inside of the upper accommodating portion 43 becomes a full opening, and maintenance, inspection, etc. of the equipment inside the upper housing portion 43 are facilitated.

  A crank mechanism 67 is connected to the crank plate 65, and when the crank mechanism 67 is operated by the rotation of the crank plate 65, the moving body 69 set on the upper and lower slide rails 68 is moved along the slide rail shaft 68. It reciprocates back and forth, and the perforation motor 55 reciprocates back and forth with the reciprocation.

  Sprockets 72, 73, and 74 are attached to the rotating shaft 70, the crankshaft 64 of the driving motor 63, and the driving shaft 71 of the endless transport body 51, respectively, and a chain E circulates between these sprockets and the tension sprocket 58. Thus, when the sprocket 70 of the drive motor 63 rotates, all the other sprockets 70 rotate synchronously. As the sprockets rotate, the crank board 65 rotates, the crank mechanism 67 operates, the drilling motor 55 moves back and forth, the endless transport body 51 rotates, and scallops are transported. The crank board 65, the crank mechanism 67, the slide rail shaft 68, the moving body 69, and the like that reciprocate the hole-making motor 55 back and forth are referred to as a moving mechanism 82.

  The drive motor 63 automatically switches between a high-speed rotation and a low-speed rotation. When the scallop is transported, the drive motor 63 rotates at a high speed to move the endless transport body 51 at a high speed. Thus, the endless transport body 51 is moved at a low speed. Along with the change of the rotation speed, the rotation speed of the crank board 65 also changes, and accordingly, the reciprocation speed of the drilling motor 55 is switched between high speed movement and low speed movement in synchronization with the conveyance speed of the endless conveyance body 51. The transport speed of the endless transport body 51 is set to a speed at which 100 scallops can be drilled per minute, and the low speed travel speed is about 20% of the high speed travel speed. The rotational speed of the drive motor 63 is set by the adjustment volume 47.

(Embodiment of drilling motor)
An example of the drilling motor 55 is shown in FIGS. The illustrated drilling motor 55 is a spindle motor. A housing space 2 is formed inside the motor housing 1, and a coil 3 wound in a cylindrical shape is housed and fixed in the housing space 2, and an inner space of the coil 3. A rotor 5 is accommodated in 4. The rear end portion of the rotating shaft 6 of the rotor 5 is rotatably supported by the rear cover 8 by attaching the rear bearing 7 to the rear cover 8 fixed to the rear end surface of the motor housing 1. 11 is supported by a front bearing 10b (FIG. 1) disposed in a circular recess housing portion 10a (FIG. 3A) at the center of the front lid 10 (this front bearing 10b is shown in FIG. 3A). ) Is not visible because it is covered with a disk 9 on the outside. By fixing the front lid 10 to the front end surface of the motor housing 1, the rotating shaft 6 and the rotor 5 are rotatably supported in the inner space 4 of the coil 3. The distal end portion 11 of the rotary shaft 6 penetrates the center portion of the front lid 10 and protrudes forward, so that the drill blade 13 can be attached to and detached from the chuck 12 mounted on the distal end portion 11.

  A gas intake port 14 is opened on the outer side near the rear end of the motor housing 1, and two elongated arc-shaped groove-shaped gas passages 15 are formed along the axial direction on the inner surface of the motor housing 1. Is opened inside the motor housing 1 so that the gas taken in from the gas inlet 14 flows into the gas passage 15. Each gas passage 15 is formed to be recessed in the inner wall surface of the motor housing 1, and a front end thereof is opened on the front surface in the axial direction of the motor housing 1, and a rear end portion is opened on the rear surface in the axial direction of the motor housing 1.

  A rear cover 8 is fixed to the rear end surface of the motor housing 1 with screws, and the rear surface of the housing space 2 of the motor housing 1 is sealed, and a front lid 10 is fixed to the front end surfaces of the housing 1 with screws 16 to store the motor housing 1. The front face of 2 is sealed. Several air vents 17 and 18 are opened in the disc 9 and the front lid 10, and the gas exhausted from the gas passage 15 flows out from the air vents 17 and 18 to the front of the front lid 10. It is.

  A lid cover 19 is fixed to the front surface of the front lid 10 with screws 20. An insertion hole 21 is opened at the center of the lid cover 19, and the tip end portion 11 of the rotary shaft 6 projects forward from the insertion hole 21, and a chuck 12 to which the drill blade 13 can be attached and detached is provided at the tip end portion 11. Yes. In this case, a gap 22 (FIG. 4) is formed between the insertion hole 21 and the tip end portion 11 of the rotating shaft 6, and the gas flowing out from the vent holes 17 and 18 flows from the gap 22 toward the lid cover 19. It is designed to flow out.

  The chuck 12 is the same as an existing chuck, and includes a chuck body 23 and a holder (commonly referred to as a mill collet) 24 as shown in FIG. A tapered taper hole 25 is opened in the chuck body 23, and an insertion hole 26 is passed through the tip (right side in FIG. 4). The holder 24 has a cylindrical shape whose inner diameter can be expanded and contracted, and has a tapered taper. A drill blade 13 can be inserted into and removed from the tip of the holder 24, and a cap 27 is put on the outer periphery of the tip of the chuck main body 23. The screw 28 is screwed.

  The chuck body 23 covers the outer periphery of the tip end portion 11 of the rotating shaft 6 tapered in the same direction as the tapered hole 25, and a set screw 31 inserted into the insertion hole 26 of the chuck body 23 is attached to the rotating shaft 6. Are fixed by screwing into screw holes 29 formed in the tip portion 11. The holder 24 is inserted into the taper fitting hole 30 of the chuck body 23, and when the cap 27 is rotated forward, the holder 24 is tightened to reduce its inner diameter and is inserted into the holder 24. When the drill blade 13 is tightened and fixed, and the cap 27 is rotated in the reverse direction, the inner diameter of the holder 24 is widened, and the tightening of the drill blade 13 inserted therein is loosened so that the drill blade 13 can be removed from the holder 24. It is. As the drill blade 13, one suitable for drilling an article can be used, and one having a different diameter according to the size of the hole to be drilled can be replaced with the chuck 12.

  A windshield 33 is attached to the outer periphery of the chuck body 23. The windshield 33 has a cylindrical shape with a rear opening in which a main body insertion hole 34 is opened at the center. Exhaust gas exhausted from the gap 22 between the lid cover 19 and the rotary shaft 6 collides with the closing surface 35 of the windshield 33. It is prevented from slipping forward and returned to the rear of the windshield 33, diffused to the outer periphery of the windshield 33, and discharged forward.

  In the present invention, as shown in FIG. 10, the endless transport bodies 51 can be arranged in two horizontal rows, or the endless transport bodies 51 can be arranged in two upper and lower stages as shown in FIG. In any case, one or two workers W can place the scallop A on the endless transport body 51 in two rows. As shown in FIG. 11, when arranged in two upper and lower stages, the tip end portion (shell placing part) 80 of the lower endless transport body 51 is disposed so as to protrude outward in the rotational axis direction of the upper endless transport body 51. When the shell is placed on the tip of the lower endless transport body 51 (shell placing part), the tip 81 of the upper endless transport body 51 does not get in the way, and the scallop A can be easily placed. In this case, the lower endless transport body 51 may be the same length as the upper endless transport body 51 or may be longer.

  Although not shown, when the endless transport bodies 51 are arranged in two upper and lower stages, the arrangement positions of the upper and lower endless transport bodies 51 can be shifted in the lateral width direction of the upper and lower endless transport bodies 51.

  When two sets of endless transport bodies 51 are arranged, two sets of devices necessary for drilling, such as another driving mechanism 82 for driving the endless transport body 51, a drilling motor 55, and a moving mechanism, may be provided. Can be shared.

(Usage example of scallop drilling device)
In order to use the scallop drilling device of the present invention, it is as follows.
1. The drive motor 63 is rotated to run the endless transport body 51, and the set tool 50 of the endless transport body 51 is transported. At the same time, the drilling motor 55 is reciprocated back and forth, and the rotary shaft 6 of the drilling motor 55 is rotated to rotate the drill blade 13.
2. An operator sitting in front of or next to the endless transport body 51 sets the scallops A on the set tool 50 being transported one by one in the vertical direction with their ears B facing down.
3. The set scallop A is automatically transported to the perforation motor 55 side by the transport of the endless transport body 51, and when approaching the perforation motor 55, the scallop A is sandwiched between the movable piece 52 and the fixed piece 53 of the setting tool 50. It is held and fixed.
4). The endless transport body 51 moves at a high speed to the front of the drill 13 of the drilling motor 55 to transport the scallop A at a high speed, and switches to a low speed transport just before the drill blade 13. When the drilling motor 55 reaches the most advanced position, the scallop A being conveyed at low speed presses against the drill blade 13 of the drilling motor 55 and is drilled in the ear B of the scallop A.
5. When the drilling is completed, the drilling motor 55 moves backward and comes out of the scallop A.
6). The scallop A, which has been drilled, wraps around the endless transport body 51 while being pinched and held by the transport of the endless transport body 51, turns downward, and is pinched by the set tool 50 when it reaches a predetermined position. The holding is released and the set tool 50 falls into the lower collection container.
7). The scallops A set in the setting tool 50 as described above 2 are sequentially conveyed to the perforation motor 55 side by the repetition of the high-speed conveyance-low-speed conveyance of the endless conveyance body 51, and are drilled from one to the next.

  In order to use the perforation motor 55, the motor connected to the AC power source is rotated by the power cord C (FIG. 2). At this time, it is preferable to increase the rotation speed by an inverter so that the rotation speed of the motor exceeds 30,000 rotations per minute. Next, compressed air is supplied from the air compressor P (FIG. 1) to the gas intake port 14 through the hose H and the nozzle N (FIG. 2). This compressed air is supplied to the housing space 2 of the motor housing 1 and flows into the gas passage 15, passes through the disk 9 and the exhaust ports 17 and 18 of the front lid 10 from the tip of the gas passage 15, and passes through the gap 22. Then, it hits the windshield 33 and returns to the rear, and is diffused to the outer periphery of the windshield 33 and discharged. By this exhaust, chips and dust generated at the time of drilling with the drill blade 13 are blown away.

  Gas is supplied from the air compressor P to the gas intake port 14 of the perforation motor 55, which passes through the motor housing 1 and is ejected from the lid cover 19 toward the drill blade 13 to blow off chips and dust. And does not adhere to the periphery of the rotating shaft of the motor. Further, the fan 60 (FIG. 5) attached to the lower housing part 42 rotates and chips and dust are discharged out of the device case 40.

  Although the two endless transport bodies 51 in FIG. 10 are separate bodies, the two endless transport bodies 51 can be accommodated in one housing.

  The drilling device of the present invention can also be used for drilling other shells.

DESCRIPTION OF SYMBOLS 1 Motor housing 2 Accommodating space 3 Coil 4 Coil inner space 5 Rotor 6 Rotor rotating shaft 7 Rear bearing 8 Rear lid 9 Disc 10 Front lid 10a Recessed housing portion 10b Front bearing 11 Rotary shaft tip 12 Chuck 13 Drill blade 14 Gas inlet 15 Gas passage 16 Screw 17 Disc vent 18 Front lid vent 19 Lid cover 20 Screw 21 Lid cover insertion hole 22 Gap 23 Chuck body 24 Holder (Milcollet)
25 Taper hole 26 Insertion hole of chuck main body 27 Cap 28 Outer peripheral screw 29 Screw hole 30 Taper fitting hole 31 Set screw 33 Windshield 34 Main body insertion hole 35 Closed surface of windshield 38 Back part of transport body 39 Front part of transport body 40 Transport Body 40a Transport body case 40b Transport body handle 41 Equipment case 42 Lower housing portion 42a Lower housing portion handle 42b Both side plates 42c Locking chain 43 Upper housing portion 44 Cover 44a Upper corners on both sides of the cover 45 Illuminator 46 Power switch 47 Adjustment volume 48 Power indicator lamp (pilot lamp)
49 Company name display sticker 50 Set tool 51 Endless carrier 52 Movable piece 53 Fixed piece 55 Drilling motor 56 Ceiling 57 Bracket 58 Tension sprocket 59 Back wall of lower housing part 60 Fan 61 Partition plate 62a Front housing part 62b Rear housing part 63 Driving motor 64 Crankshaft 65 Crankboard 66 Inverter 67 Crank mechanism 68 Slide rail 69 Moving body 70 Rotating shaft 71 Drive shaft 72, 73, 74 Sprocket 80 Tip end of lower endless transporter 81 Front end of endless endless transporter 82 Moving mechanism A Scallop B Scallop hole C Power cord D Powder E Chain H Hose M Motor N Nozzle P Air compressor S Chuck W Worker

Claims (4)

In a scallop drilling device that transports scallops one by one by an endless carrier and drills holes in each scallop with a drill blade,
An endless transporter that transports the scallops, a drilling motor that is installed in the transport direction of the endless transporter and that opens a hole in the scallop being transported by the endless transporter, and advances the drilling motor toward the endless transporter , Equipped with a moving mechanism that moves backward from the endless carrier side,
The endless conveying member is a traveling body provided with a set device capable of setting one by one the scallops, set instrument is provided two or more spaced apart in the running direction of the running body,
The endless transporter moves laterally, folds downward at the lower folding part, folds upward at the upper folding part, and rotates and moves. The scallop set on the set tool is moved to the drilling motor side by the lateral movement. Can be transported,
In the set tool, a fixed piece and a movable piece are arranged to face each other in the transport direction of the traveling body, and both pieces are arranged to face each other with a space in which one scallop can be inserted vertically with its ears down. When the scallops are set vertically in the space with their ears facing down, the movable piece can automatically move to the fixed piece side and the scallop can be sandwiched and fixed between the fixed piece,
Two endless transport bodies are provided,
Each of the two endless transport bodies is elongated, and is arranged side by side in one device case with the fixed piece and the movable piece in the same direction, the back portion in the shell transport direction is in the device case, and the front portion in the transport direction is the above It is arranged protruding from the equipment case,
The two endless transport bodies are the same or substantially the same height, and the side-by-side spacing between the two endless transport bodies is determined by a single worker outside the front portion of the transport direction in the transport direction of the two endless transport bodies. It is the interval that can set the scallops on the individual set tools in the front part,
The drilling motor, each time the said two endless carrier sandwiched fixed scallops set tool is conveyed to the drilling motor side, and moves forward to the endless conveying side by the moving mechanism, holes Drill a hole in the scallop with the drill blade equipped in the drilling motor, move backward by the moving mechanism after drilling, the drill blade can escape from the scallop and wait for the next forward movement ,
The endless transporter transports the scallops after completion of the drilling while being clamped and fixed to the set tool, and when it reaches a predetermined position, the clamp fixing by the set tool is released and the scallop can be dropped from the set tool. ,
A scallop drilling device characterized by that. In the scallop drilling device according to claim 1 ,
Each endless transporter transports at low speed when drilling into a scallop with a drill blade, otherwise transports at a higher speed than during low-speed transport, and the drilling motor moves at a lower speed during drilling, and at other times it is slower It moves at a higher speed than when moving, and its low-speed movement and high-speed movement are switched in synchronization with the switching between the low-speed conveyance and high-speed conveyance of the endless carrier
A scallop drilling device characterized by that. In the scallop drilling device according to claim 1 or 2 ,
The drilling motor has a drill blade, a gas intake port, a gas passage, and a delivery port,
A compressor is connected to the gas intake port of the drilling motor,
The gas sent to the gas intake port passes through the gas passage of the perforation motor and is sent out from the delivery port of the perforation motor, while the inside of the casing of the perforation motor is cooled by the gas, It is possible to scatter chips generated by drilling holes in scallops with a drill blade.
A scallop drilling device characterized by that. In the scallop drilling device according to any one of claims 1 to 3 ,
The drilling motor is provided with a coil in a casing, a rotor is provided in the coil, a rear lid is attached to the rear end of the casing and a front lid is detachably attached to the front end, and the rotor rotates. A shaft is attached to the housing by a rear bearing and a front bearing, a drill blade is attached to the rotating shaft by a chuck, and a gas intake port for taking in gas sent from the outside is provided in the housing. A gas passage through which the gas taken in from the gas intake port passes is provided in communication with the gas intake port, a communication hole communicating with the gas passage is penetrated through the front lid, and the tip of the communication hole A delivery port is provided in communication with the communication hole, and the gas passage opens to the coil side so that the gas passing therethrough is fed into the housing, and the delivery port opens a hole in the scallop with the drill blade. The chips generated by opening As can be provided on the outer circumference of the rotating shaft to a root side of said chuck,
A scallop drilling device characterized by that.

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