JP5410843B2 - Cutting machine - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a cutting machine such as a tabletop saw that cuts a material to be cut placed on a base with a rotary blade that moves up and down.

  In a cutting machine such as a tabletop saw, a main body provided with a rotary knife driven by a motor is provided on a base on which a material to be cut is placed so that the main body can be moved up and down. Cutting material can be cut. As such a cutting machine, as shown in Patent Document 1, there is known one equipped with a laser oscillator so that a cutting position of a material to be cut by a rotary blade can be visually recognized as a black line in advance.

JP 2000-225602 A

  In such a laser oscillator, the operating power supply is obtained from a commercial power supply in the same way as the motor, so that the structure becomes complicated, for example, it is necessary to route the wiring in the main body, and the cost and assembly work are increased.

  Therefore, an object of the present invention is to provide a cutting machine that can be easily wired even if a laser oscillator is provided.

In order to achieve the above object, according to the first aspect of the present invention, a main body having a motor and a rotary blade rotating by driving the motor is moved up and down by a support shaft on a base on which a material to be cut is placed. As a type that is supported by a laser oscillator that is provided with a laser oscillator that vertically emits a laser toward the material to be cut on the base on the main body side, and the laser oscillator is operated by a DC power source, A battery box that houses a battery serving as a power source for the laser oscillator is provided at a position near the support shaft on the side of the motor on the side of the main body.
According to a second aspect of the present invention, in the configuration of the first aspect, the laser oscillator is rotatably supported and can be fixed at an arbitrary phase, and the irradiation angle around the laser axis can be tilted in the left-right direction. The laser irradiation angle in the left and right direction can be fixed and supported at an inclined position of the laser so that it can be slid in the left and right direction and can be fixed at any sliding position and the irradiation position in the left and right direction can be adjusted. It is characterized by.

According to the first aspect of the present invention, since the laser oscillator and the battery box are electrically and independently attached to the cutting machine, the structure relating to the laser oscillator is simplified and wiring can be performed easily. Further, it can be easily retrofitted to a cutting machine that does not include a laser oscillator, and can be easily removed for repair.
Moreover, since the battery box is provided on the motor installation side of the main body, the battery box can be continuously assembled in the same process as the motor assembly.
According to the second aspect of the present invention, in addition to the effect of the first aspect, fine adjustment of the laser according to the cutting mode of the material to be cut can be easily and accurately performed.

It is the perspective view which looked at the slide marnoco from the upper left. It is the perspective view which looked at the slide marnoco from the upper right. It is a longitudinal cross-sectional view of an arm part. It is a perspective view of a clamp axis | shaft and a lever. In the explanatory view of the arm stopper mechanism, (A) shows the state of the fixed cylinder portion as viewed from the rear, and (B) to (D) are cross sections of the lower stopper portion (inclination 0 °, left 45 °, right 45 respectively). °) respectively. It is explanatory drawing which looked at the arm from back. It is explanatory drawing of a main body, (A) shows the cross section of a motor part, (B) shows the cross section of a lock button part, respectively. It is a perspective view of a blade cover. It is a perspective view of a laser irradiation unit. It is explanatory drawing of a battery box, (A) shows a plane and (B) (C) shows a longitudinal section, respectively. It is a perspective view of the guide part of the right side of a guide fence, (A) shows from the front, (B) shows the state seen from back, respectively. It is a perspective view of the right guide part which removed the upper fence. (A) is the perspective view which looked at the turn base from the lower part, (B) is the perspective view of a slide plate. It is a center longitudinal cross-sectional view of a base and a turn base.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2 are perspective views of a slide maroon that is an example of a cutting machine. In the slide marnoco 1, a turn base 3 having a circular shape in plan view is rotatably mounted at the center of a base 2. The movable cylinder part 6 formed at the lower end of the arm 5 can be tilted up to 45 ° in the left-right direction and fixed at an arbitrary angle to the fixed cylinder part 4 formed on the rear side (upper left side in FIG. 1). It is connected. As shown in FIG. 3, this connection is made by loosely connecting the clamp shaft 7 from the rear to the center of the movable tube portion 6 and the fixed tube portion 4 and connecting the front end thereof to the fixed tube portion 4 in a non-rotatable manner. A screw portion 8 formed at the rear end of the shaft 7 is passed through a cap 10 fixed in the arm 5 by a cover 9 attached to the rear of the arm 5, and the base end portion 12 of the lever 11 is screwed. It has a structure.

  That is, when the lever 11 is rotated to the right in the direction in which the base end portion 12 is screwed into the screw portion 8, the base end portion 12 whose movement is restricted by the cap 10 screw-feeds the clamp shaft 7 backward, and the movable cylinder portion 6 is moved. The arm 5 is fixed at the position by pressing against the fixed cylinder portion 4 (clamped state). On the other hand, when the lever 11 is rotated counterclockwise, the base end portion 12 screw-feeds the clamp shaft 7 forward to release the pressure between the movable tube portion 6 and the fixed tube portion 4 (unclamped state), and the fixed tube portion. 4, the rotation of the movable cylinder portion 6 with respect to 4, that is, the tilt of the arm 5 is allowed. As shown in FIG. 4, a nut 13 is screwed onto the screw portion 8 in front of the cap 10, and a pair of washers 14, 14 and a thrust needle bearing 15 provided therebetween are connected to the clamp shaft in front of the cap 10. 7 is fixed. Thereby, at the time of unclamping, the washer 14 engages with the arm 5 to apply a constant axial force to the clamp shaft 7, and the arm 5 can be maintained at the position.

  Further, as shown in FIG. 5, the maximum tilting of the arm 5 is regulated by a pair of left and right stopper bolts 16, 16 provided on the left and right sides in the fixed cylinder part 4 from the movable cylinder part 6 into the fixed cylinder part 4. The lower stopper 17 is in contact (when (C) is tilted 45 ° to the left and (D) is tilted 45 ° to the right). The lower stopper 17 is formed separately from the movable cylinder portion 6 and is fixed to the movable cylinder portion 6 by a bolt 18. If the lower stopper 17 is formed as a separate body in this way, it is possible to easily select one inclination to the left and right and both inclinations to the left and right by exchanging the lower stoppers 17 having different shapes. There is an advantage that the parts can be shared. Reference numeral 19 denotes an upper stopper that comes into contact with the upper stopper bolt 20 provided on the fixed cylinder portion 4 at a right-angle cutting position in FIG. 5B so that the upper stopper bolt 20 is released from the contact position with the upper stopper bolt 20 by operating the release button 21. It has become.

  A pair of cylindrical holding portions 22, 22 are provided at the upper end of the arm 5 in parallel and integrally in the front-rear direction, and a pair of left and right pipe-like slide bars 23, 23 are provided on both holding portions 22. Is supported so as to be slidable in the front-rear direction. The rear ends of the slide bars 23, 23 are connected to the rear holder 24. The front ends of the slide bars 23, 23 are connected to the front holder 25, respectively. The main body 30 is coupled to be rotatable in the vertical direction and is held at the top dead center in FIGS. As shown in FIGS. 3 and 6, the rear surface of the rear holder 24 is formed with an insertion hole 28 into which one end of a box wrench 27 used for exchanging saw blades is inserted, and the other end of the box wrench 27. The holder wrench 29 is provided so that the box wrench 27 can be attached and detached.

  On the other hand, as shown in FIG. 7, the main body 30 is also provided with a disk-shaped saw blade 32 that is a rotary blade that rotates by driving a motor 31 provided on the right side, and a support shaft 26 that covers the upper side of the saw blade 32. A blade cover 33 connected to the front holder 25 is provided. Below the blade cover 33, the lower edge of the saw blade 32 is covered at the top dead center, and a link 35 (shown in FIG. 1) as the main body 30 descends. , And a safety cover 34 is provided to expose the lower edge of the saw blade 32. The motor housing 36 that houses the motor 31 is attached to the saw blade 32 via a gear housing 37 that is assembled to the right side surface of the blade cover 33 so as not to interfere with a guide fence 77 described later when the main body 30 is tilted to the right side. On the other hand, it is provided in a direction inclined 45 ° upward. Thus, by making the blade cover 33 and the gear housing 37 separately, it is possible to simplify the mold structure of individual components rather than integrating them. Reference numeral 38 denotes a fixing screw for the gear housing 37, and a handle 39 provided with a switch lever 40 and parallel to the blade cover 33 is provided above the motor housing 36.

  Reference numeral 42 denotes a spindle which is supported by the blade cover 33 and the gear housing 37 and to which the saw blade 32 is attached. Torque transmission from the output shaft 41 of the motor 31 to the spindle 42 is transmitted to a bevel gear 43 formed on the output shaft 41. This is performed by meshing with a bevel gear 44 mounted on the spindle 42. Reference numeral 45 denotes a lock button for locking the rotation of the spindle 42 when the saw blade 32 is replaced. When the bevel gear 44 is locked in a locking hole 44a provided in the bevel gear 44 on the spindle 42 side by a pushing operation, the bevel gear 44 is moved. Thus, the rotation of the spindle 42 is locked.

  Further, in the motor housing 36, a ball bearing 46 that pivotally supports an end of the output shaft 41 opposite to the bevel gear 43 is held in a bearing retainer 47 provided in the motor housing 36 via a rubber ring 48. . The rubber ring 48 absorbs vibrations generated from the bevel gears 43 and 44, whereby the meshing sound between the bevel gears 43 and 44 can be reduced. On the other hand, as shown in FIG. 8, a communication hole 49 that allows the motor housing 36 and the blade cover 33 to communicate with each other is formed in an upper portion of the output shaft 41 in the gear housing 37, and the gear housing 37 is connected to the blade cover 33. On the side, wind windows 50, 50... For guiding motor cooling air generated by the motor cooling fan 51 provided on the output shaft 41 into the blade cover 33 are provided.

As shown in FIG. 9, a laser irradiation unit 52 is provided on the front surface of the front holder 25, and a battery box 53 is provided near the support shaft 26 on the right side surface of the blade cover 33.
First, the laser irradiation unit 52 includes a laser oscillator 55 that is electrically connected to the battery box 53 via a lead wire 54, a cylindrical holder 56 that rotatably holds the laser oscillator 55 forward and obliquely downward, and a holder 56. A lower connecting plate 58 to which the upper connecting plate 57 protruding to the side is connected, and a bracket plate 59 provided on the front surface of the front holder 25 to which the lower connecting plate 58 is connected.

  Of these, the laser oscillator 55 is a shaft-like body that emits laser light in a vertical fan shape from the front surface by supplying DC power, and is rotatably inserted into the holder 56. A pressing screw 60 is screwed onto the upper surface of the holder 56, and the pressing screw 60 is screwed into the holder 56, whereby the side surface of the laser oscillator 55 is pressed and its rotation is restricted. Therefore, when the pressing screw 60 is loosened, the laser oscillator 55 can be rotated in the holder 56 to adjust the laser irradiation angle from the front surface around the axis.

The upper connecting plate 57 is attached to the lower connecting plate 58 by two screws 61 and 62 arranged in front and rear, and the through hole of the front screw 62 in the upper connecting plate 57 is a long hole 63 that is long in the left-right direction. Therefore, in the state where the screws 61 and 62 are loosened, the upper connecting plate 57 is tilted left and right with the rear screw 61 as the center to adjust the direction (irradiation angle in the left and right direction) of the holder 56 and the laser oscillator 55. be able to.
The lower connecting plate 58 is attached to the bracket plate 59 with screws 64, and the lower connecting plate 58 is fitted with a left and right ridge 65 projecting on the back surface in a left and right groove 66 provided on the bracket plate 59. In addition, the through hole of the screw 64 is a long hole 67 that is long in the left-right direction. Therefore, in a state where the screw 64 is loosened, the lower connecting plate 58 can be slid in the left-right direction, and the slide position in the left-right direction of the holder 56 and the laser oscillator 55 integrated therewith can be adjusted.

  As shown in FIG. 10, the battery box 53 includes a housing portion 68 that houses the two AA batteries 68 a and 68 a and a switch 69 adjacent to the housing portion 68. As shown in FIG. 5C, a lid 70 is provided that can open the upper surface of the housing portion 68 by sliding the switch 69 to the opposite side. The battery box 53 fits between the ribs 71 and 71 formed on the side surface of the blade cover 33 and is screwed to the vicinity of the laser irradiation unit 52 with the switch 69 facing the support shaft 26 side. The lead wire 54 is fixed by two locking portions 72, 72 provided on the front holder 25 so that the lead wire 54 does not jump out to the side even if the main body 30 moves up and down.

  On the other hand, in the base 2, an extension portion 73 projects in the radial direction in front of the turn base 3, and a blade plate 74 is provided on the upper surface from the extension portion 73 to the center of the turn base 3. . A grip 75 for horizontal rotation operation of the turn base 3 protrudes from the front end of the extension 73. In addition, on the left and right sides of the turn base 3 in the base 2, mounting portions 76 and 76 having upper surfaces that are the same height as the turn base 3 and legs that extend in the front-rear direction are formed respectively.

  Reference numeral 77 denotes a guide fence installed between the upper surfaces of the placement portions 76 and 76. The guide fence 77 is provided with a pair of left and right guide portions 78 and 78 fixed to the placement portion 76 and a blade edge plate 74 rearward. And a semicircular detour portion 79 that connects the guide portions 78 and 78 by detouring. Here, as shown in FIG. 11, the right guide portion 78 is connected to a lower fence 80 fixed to the placement portion 76 and an upper fence 81 detachably connected to the lower fence 80 by a knob screw 82. It is divided in two.

  On the back surface of the upper fence 81, cylindrical portions 83, 83 to which a knob screw 84 can be screwed are formed, and a material to be cut placed on the turn base 3 is pressed from above onto any of the cylindrical portions 83. A fixed vertical vise 85 can be mounted. Therefore, when tilting the main body 30 to the right side, as shown in FIG. 12, if the upper fence 81 is removed from the guide portion 78, interference with the main body 30 can be avoided. Even when the upper fence 81 is removed, the vertical vise 85 can be attached to the lower fence 80 by the knob screw 82 provided on the cylindrical portion on the back surface of the lower fence 80. In addition, the left guide portion 78 is also divided into upper and lower fences 86 and 87, but the upper fence 86 here slides outward on the lower fence 87, so that it interferes with the main body 30 when tilted to the left. It can be avoided.

  Further, as shown in FIG. 13A, slide plates 88 and 88 are provided on the lower surface of the turn base 3. This slide plate 88 is a pair of strips that are curved in an arc along the circumferential direction of the turn base 3, and as shown in FIG. .. Are connected to the turn base 3 so as to be integrally rotatable by inserting them into recesses 90, 90... Provided on the lower surface of the turn base 3. In the state where the turn base 3 is placed on the base 2, as shown in FIG. 14, the slide plate 88 is in sliding contact with the upper surface of the receiving portion 91 formed on the base 2 and rotatably supports the turn base 3. Become. Reference numeral 92 denotes a hexagonal bolt serving as the rotation center of the turn base 3, which penetrates the turn base 3 and the base 2 from the upper side of the turn base 3, and a nylon nut 93 is screwed to a lower end protruding to the lower side of the base 2. It is preventing it from coming off.

In the slide marvel 1 configured as described above, the material to be cut is placed on the upper surface of the turn base 3, and the switch 69 of the battery box 53 is turned on while being pressed and positioned against the guide portion 78 of the guide fence 3. When operated, a laser is emitted from the laser oscillator 55 and appears as a black line on the upper surface of the material to be cut. Therefore, it is possible to accurately adjust the size of the material to be cut obtained after cutting by finely adjusting the position of the material to be cut.
Next, when the handle 39 is gripped and the switch lever 40 is pushed in, the motor 31 is driven and the saw blade 32 is rotated. If the main body 30 is lowered as it is, the safety cover 34 rotates to expose the lower edge portion of the saw blade 32, and the material to be cut can be cut at right angles at the position of the black line. A roller 94 (shown in FIG. 1) is provided at a position near the top edge of the left side of the left side surface of the safety cover 34 so that the safety cover 34 may interfere with the material to be cut. The safety cover 34 is smoothly rotated by the rolling of the roller 94.

  Here, when the grip base 75 is gripped and the turn base 3 is rotated, the main body 30 also follows and rotates, so that the angles of the saw blade 32 and the blade edge plate 74 with respect to the guide portion 78 are changed. Angle cutting that cuts the material to be cut diagonally can be performed. Further, when the arm 5 is tilted by a predetermined angle to the left or right by the operation of the lever 11, the main body 30 is also tilted at the angle, so that the inclined cutting that cuts the material to be cut obliquely in front view can be performed. In any case, since the laser rotates or tilts following the saw blade 32, it can be cut at the position of the black line as in the case of right-angle cutting.

  On the other hand, when performing slide cutting on a material to be cut long in the front-rear direction, when the main body 30 is pulled toward the front by grasping the handle 39, the slide bars 23, 23 integrated with the main body 30 via the front holder 25 are formed. Since it slides with respect to the holding parts 22, 22, the main body 30 can be moved forward. When the main body 30 reaches the end of the material to be cut and the switch lever 40 is pushed down to lower the main body 30, the rotating saw blade 32 is cut into the material to be cut. When the main body 30 is pushed rearward as it is, the slide bars 23 and 23 slide rearward with respect to the holding portions 22 and 22, so that the main body 30 moves rearward to slide and cut the material to be cut. it can. Also at this time, since the laser is emitted from the laser oscillator 55 that follows the front side holder 25, the slide cutting along the black line becomes possible.

  Then, when changing or finely adjusting the position of the black line to the side surface of the saw blade 32, for example, in the laser irradiation unit 52, if the press screw 60 is loosened as described above, the laser oscillator 55 is rotated around the axis. Thus, the irradiation angle can be adjusted. If the screws 61 and 62 of the upper connecting plate 57 are loosened, the laser 56 can be tilted in the horizontal direction along with the laser oscillator 55 to adjust the laser irradiation angle in the horizontal direction. Then, if the screw 64 of the lower connecting plate 58 is loosened, the upper connecting plate 57 together with the laser oscillator 55 is slid in the left-right direction, and the position of the laser in the left-right direction can be adjusted. When the capacity of the batteries 68a, 68a is exhausted, the battery can be replaced by removing the lid 70 of the battery box 53 and opening the housing portion 68.

  As described above, according to the slide marnoco 1 of the above embodiment, the laser oscillator 55 and the battery box are provided with the battery box 53 that accommodates the battery serving as the DC power source as the type that operates the laser oscillator 55 by the DC power source. 53 is electrically attached to the slide maroon 1 independently. Therefore, even if the laser oscillator 55 is provided, the structure becomes simple and wiring can be performed easily. In particular, it can be easily retrofitted to a slide maroon without a laser oscillator, and can be easily removed for repair.

Further, here, the battery box 53 is arranged in the vicinity of the laser oscillator 55 on the outer surface of the main body 30 on the side where the motor 31 is installed, so that the battery can be easily replaced and the lead wire 54 connecting the two is short. In other words, the possibility that the lead wire 54 routed around the outer surface of the main body 30 may interfere with the work is reduced. Further, since the battery box 53 is provided on the same side as the motor 31 (here, the right side), the battery box 53 can be continuously assembled in the same process as the assembly of the motor 31.
Further, the laser oscillator 55 is supported so that it can rotate and can be fixed at an arbitrary phase, and the irradiation angle around the axis of the laser can be tilted to the left and right and can be fixed at an arbitrary tilt position to support the left and right sides of the laser. The irradiation angle in the direction can be slid in the left-right direction and can be fixed at any sliding position, so that the irradiation position in the left-right direction can be adjusted respectively, so that fine adjustment of the laser as needed is easy and accurate Can be done.

In addition, fine adjustment of the laser oscillator is not limited to the structure according to the above form, but the upper connecting plate makes the through-hole of the rear screw a long hole, and the lower connecting plate slides the two screws in the left-right direction through the long hole. It is possible to change the design as appropriate, such as guiding it as possible. Of course, other structures such as a screw feed mechanism can be adopted in addition to the adjustment structure using screws and long holes.
Further, it is not necessary to be able to adjust in three directions, that is, the laser rotation direction, the left and right tilt directions, and the left and right slide directions, and the adjustment may be made in any one direction or only in two directions.
In addition, the battery box also uses a hinge instead of a slide to open and close the lid, a switch that slides, other types of batteries such as button batteries, and storage batteries. Conceivable. In addition, it is not limited to be provided separately from the laser oscillator, but the laser oscillator and the battery box can be integrally mounted on the main body.

  In addition, the cutting machine is not limited to a sliding marco, but may be a desktop maroon that does not have a sliding mechanism, or the present invention can be applied to other cutting machines such as a cutter.

  1 ························································································································ • -Rear holder, 25-Front holder, 26-Support shaft, 30-Main body, 31-Motor, 32-Saw blade, 33-Blade cover, 36-Motor housing, 39-Handle, 52 .. Laser irradiation unit, 53 .. Battery box, 54 .. Lead wire, 55 .. Laser oscillator, 56 .. Holder, 57 .. Upper connecting plate, 58 .. Lower connecting plate, 59. 60..Pressing screw, 61, 62, 64..Screw, 64.67..Long hole, 68..Receiving part, 69..Switch, 70..Lid, 71..Rib.

Claims (2)

A main body having a motor and a rotary blade that rotates by driving of the motor is supported on a base on which the material to be cut is placed so as to be movable up and down by a support shaft. A cutting machine provided with a laser oscillator that vertically emits a laser toward a cutting material,
The laser oscillator is a type that operates with a DC power supply, and a battery box that houses a battery serving as a power supply for the laser oscillator is provided at a position near the support shaft on the side surface on the motor installation side of the main body . And cutting machine. The laser oscillator is supported so that it can rotate and can be fixed at an arbitrary phase, and the irradiation angle around the axis of the laser can be tilted in the horizontal direction and can be fixed at an arbitrary tilt position, and can be fixed in the horizontal direction of the laser. The cutting machine according to claim 1, wherein the irradiation angle can be slidable in the left-right direction and can be fixed at an arbitrary sliding position to adjust the irradiation position in the left-right direction.

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