JP2008168415A - Safety dust collection cover of drilling machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety dust collection cover for a drilling machine, which achieves safety of the drilling machine against a drill and flying chips and capable of collecting the chips flying in chipped pieces. <P>SOLUTION: This safety dust collection cover of the drilling machine M furnished with a main body 20 forming a working space and a safety cover body 30 arranged on an upper part of this main body is provided with an opening part 22 for fitting to fit and fix it on an apparatus Q for work fixing fixed on a working table T of the drilling machine along a lower part and a side part of the main body and provided with an opening part 22a for workpiece insertion to insert the workpiece W in the working space of the main body and an opening part 24 for discharge to discharge the cutting chips. An upper part opening 23 to connect and fix a safety cover body to cover the drill D mounted on the drilling machine is provided on the upper part of the main body. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a safety dust collecting cover for a drilling machine capable of collecting drills and chips that are scattered in a chip shape while ensuring safety with respect to drills and scattered chips.

  Generally, when drilling (drilling) a workpiece that is a non-metallic product such as plastic with a drilling machine, it is desirable to provide a safety cover so as not to contact the drill chucked by the drill chuck. Further, since chip-like chips are scattered widely around the drilling machine, it is desirable to provide a chip collection cover that can prevent chips from being scattered and can be easily collected.

Conventionally, a safety cover device for a drilling machine of Patent Document 1 has been proposed. This safety cover device has a fixed cover attached to the column of the drilling machine and a slide cover that can be moved up and down by fitting the upper part to the fixed cover. The cover is lifted and lowered by a lifting device. Further, a dust collector for a drilling machine disclosed in Patent Document 2 has been proposed. This dust collector has a configuration in which an injection nozzle and a suction port of a dust collector are disposed across a cutting position of a drill. Conventionally, there has not been proposed a device that serves as both a safety cover and a chip recovery cover.
JP-A-9-108985 (Claims, FIG. 1) JP-A-11-291108 (Claims, FIG. 1)

  However, the safety cover device of the drilling machine of Patent Document 1 has a problem that it does not have a dust collecting function, is difficult to be retrofitted to an existing drilling machine, has a complicated structure, is difficult to attach and detach, and is expensive. is there. In addition, the dust collector of the drilling machine disclosed in Patent Document 2 does not have a sufficient dust collection function, and cannot protect the operator from entrainment of the hand or scattering of the sample (workpiece) / cutting piece, and has a safety cover function. Not.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a safety dust collecting cover for a drilling machine that can collect drills and chips that are scattered in a chip shape while being safe.

  In order to achieve the above object, a safety dust collecting cover for a drilling machine according to the present invention is a safety dust collecting cover for a drilling machine comprising a main body forming a work space and a safety cover body arranged on the upper part of the main body. A fitting opening for fitting and fixing with a sample fixing tool fixed on the work table of the drilling machine is provided over the lower part and the side part of the main body, and a sample is provided on the side part of the main body. A sample insertion opening for inserting the drill into the working space of the main body and a discharge opening for discharging cutting waste are provided, and an upper part of the main body is provided for covering a drill attached to the drilling machine. An upper opening for connecting and fixing the safety cover body is provided (claim 1).

  With this configuration, the workpiece and the drill when drilling a sample (hereinafter referred to as a workpiece) fixed on the work table of the drilling machine by the drill chucked by the drilling chuck of the drilling machine are performed. Chips that cover and scatter in chips can be collected.

  In the safety dust collecting cover of the drilling machine according to the present invention, it is preferable that at least a part of the peripheral surface portion of the main body is made of a transparent body.

  By comprising in this way, the positioning state or drilling state of a workpiece | work can be monitored through a transparent body.

  In the safety dust collecting cover of the drilling machine according to the present invention, it is preferable that the safety cover body is divided into two parts covering the drill from both sides of the drill.

  By comprising in this way, a safety cover body can be attached, without moving a table, after assembling other components or installing a drill.

  Further, in the safety dust collecting cover of the drilling machine according to the present invention, an extension pipe for connecting to a chip discharging cylinder such as a flexible duct connected to the suction port of the air suction device is detachably connected to the discharge opening. (Claim 4).

  By comprising in this way, a safe dust collection cover and an air suction device can be connected via a chip discharge cylinder, such as a flexible duct.

  As described above, according to the safety dust collecting cover of the drilling machine of the present invention, since it is configured as described above, the following excellent effects can be obtained.

  (1) According to the first aspect of the invention, it is possible to secure safety against drilling drills and scattered chips, and to collect chips scattered in a chip shape. Therefore, the safety of the drilling machine operation can be ensured.

  (2) According to the invention described in claim 2, since the positioning state of the workpiece or the drilling state can be monitored through the transparent body, in addition to the above (1), the safety can be further confirmed and the operation can be easily performed. Can do.

  (3) According to the invention described in claim 3, the safety cover body can be attached without moving the table after assembling other parts or installing a drill. In addition to 2), the installation of the safety dust collecting cover can be facilitated and the convenience of work can be achieved.

  (4) According to the invention described in claim 5, since it can be connected to the air suction device via a chip discharge cylinder such as a flexible duct at a position away from the work table of the drilling machine, the above (1) to (3) In addition to this, it is possible to collect chips more reliably, and the area around the machine is refreshed to improve workability and safety.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS The best embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

First Embodiment FIG. 1 is an overall side view showing drilling work of a drilling machine. In FIG. 1, a drilling machine M is rotated by chucking a drill D with a drill chuck C provided at a lower end of a spindle E that is rotatably supported by a head B of the drilling machine M so as to be movable up and down. In addition, the upper end of the workpiece W, which is positioned by the sample fixing device Q (hereinafter referred to as the workpiece fixing device Q) fixed to the work table T, is pressed by hand so that drilling or counterboring can be performed. It is configured.

  In this case, the workpiece fixing tool Q is fixed to the work table T, for example, a pair of parallel workpiece positioning guides g provided on a wooden flat plate P, and lifting prevention provided on one end side of these workpiece positioning guides g. A stopper S with protrusions (hereinafter referred to as stopper S) is provided.

  With the workpiece W inserted between the workpiece positioning guides g of the workpiece fixing tool Q configured as described above and in contact with the stopper S, the workpiece W can be drilled or counterbored. .

  In FIG. 1, the work table T is moved and adjusted in the horizontal direction and the vertical direction, the handle H of the drilling machine M is turned to lower the drill D to the lowest limit, and the workpiece W is machined below the center line of the drill D. Precisely match the points to fix the horizontal position of the work table T, then lift and return the drill D, then move (lift) the work table T in the vertical direction and drill before the drill D reaches the lowest position. The height of the upper surface of the workpiece is determined and locked so that the machining is completed. The lifting stroke of the drill D can be adjusted by adjusting a positioning rod R attached to the head B of the drilling machine M so as to be lifted and lowered. In this case, the positioning rod R is erected on a holding member F fixed to the spindle E, and is slidably inserted through a through hole provided in a horizontal piece Ba protruding from the side surface of the head B. The lifting / lowering stroke of the drill D can be adjusted by adjusting the nuts Na and Nb respectively screwed into the upper and lower portions.

  FIG. 2 is a main part front view showing a state in which the safety dust collecting cover 10 according to the present invention is installed on the work table T of the drilling machine M when performing the drilling work with the drilling machine M shown in FIG. 3 is a view taken in the direction of arrows III-III in FIG.

  As shown in FIG. 2, the safety dust collecting cover 10 includes a main body 20 that forms a work space, a safety cover body 30, and an extension pipe 40 for discharging chips. In this case, the main body 20 is formed of, for example, a plastic molded product, a metal press molded product, or a machined or welded molded product. The safety cover body 30 and the extension pipe 40 are preferably plastic molded products, and commercially available vinyl chloride pipes can be used. The main body 20 of the safety dust collecting cover 10 is in the state of pre-adjustment of the drilling machine M described with reference to FIG. 1, that is, as described above, the work table T is moved in the vertical direction after the drill D is lifted and returned. In the locked state, it is fixed on the workpiece positioning jig Q with a fixing tool, for example, a fixing screw 11.

  As shown in FIGS. 2 to 4, the main body 20 is opened from a main body peripheral surface portion 21 having a rectangular parallelepiped internal space of a required size and a lower portion to a side portion of the main body peripheral surface portion 21, and is used for fixing the workpiece. To discharge fittings 22 for fitting and fixing with the tool Q, an upper opening 23 opened on the upper surface of the main body peripheral surface portion 21, and cutting waste opened on the side surface of the main body peripheral surface portion 21. A discharge opening 24 and a fixing portion 25 provided at the lower portion of the main body peripheral surface portion 21.

  The main body 20 is provided on the fixing portion 25 by covering the work positioning guide g fixed on the work table T of the drilling machine M with the approximate center of the upper opening 23 being aligned with the drill D of the drilling machine M. The fixing screw 11 is passed through the mounting hole and fixed to the flat plate P of the wooden workpiece fixing tool Q.

  The fitting opening 22 is not only opened so as to be covered with the workpiece positioning guide g fixed on the work table T, but the opening corresponds to the side surface of the main body peripheral surface portion 21, and an extra opening is provided for the sample. Opening as an insertion opening 22a (hereinafter referred to as a workpiece insertion opening 22a), the workpiece W is configured to be accommodated (inserted) through the workpiece insertion opening 22a at a position positioned by the workpiece positioning guide g. Has been.

  Further, the main body 20 has the periphery of the fitting opening 22 in close contact with the upper surface of the workpiece fixing tool Q provided with the workpiece positioning guide g. A portion of the main body peripheral surface portion 21 corresponding to the workpiece insertion opening 22a is a flat portion, and the flat portion is constituted by a transparent body 21a that is either transparent plastic or glass. In addition, you may form the whole main body surrounding surface part 21 with a transparent body.

  The discharge opening 24 is opened from a position higher than the upper surface of the workpiece W positioned by the workpiece positioning guide g in the main body circumferential surface portion 21 to near the lower end of the side surface portion. The opening position of the discharge opening 24 is provided on the rear side of the drilling machine M at a certain angle with respect to the extension line in the insertion direction of the workpiece W in consideration of workability. An extension pipe 40 is detachably connected to the discharge opening 24. This connection is made by plugging or screwing. The other end of the extension pipe 40 is connected to a chip discharge cylinder G such as a flexible duct connected to a suction port of an air suction device (not shown).

  A safety cover body 30 is detachably connected to the upper opening 23. This connection is made by plugging or screwing. As shown in FIG. 5, the safety cover body 30 includes substantially half-cylindrical halves 31, 32. The halves 31, 32 are covered with the drill D from both sides of the drill D and overlapped in a cylindrical shape. The upper opening 23 is inserted and connected. In this case, a pair of elastically deformable substantially arc-shaped fitting pieces 33 project from two opposing portions on the lower side of one half-divided body 31, and these fitting pieces 33 are connected to the other half-divided body. The two halves 31 and 32 are formed in a cylindrical shape by being fitted to the outer surfaces of both sides of the lower part of 32.

  Further, one half-divided body 31 is provided with a notch 31a at the upper end. This notch 31 a is a notch provided to escape so that the positioning rod R coupled to the spindle E integrated with the drill chuck C does not interfere with the safety cover body 30 connected to the main body 20. In this case, in order to make the positioning rod R and the position of the notch 31a correspond to each other, a pair of alignment marks m is attached to the half-divided body 31 or 32 (in the drawing, the case of the half-divided body 32 is shown) and the upper opening 23. It is good.

  In order to attach the safety dust collecting cover 10 configured as described above to the drilling machine M, first, the main body 20 is fitted on the work positioning guide g fixed on the work table T of the drilling machine M, and the main body 20 is fitted. The fixing portion 25 is fixed to the work table T. Next, the extension pipe 40 is connected to the discharge opening 24, and the other end of the extension pipe 40 is connected to a chip discharge cylinder G such as a flexible duct connected to the suction port of the air suction device. Make it operational. At this time, the approximate center of the upper opening 23 of the main body 20 is aligned with the drill D of the drilling machine M. The workpiece W is accommodated (inserted) at a position positioned by the workpiece positioning guide g through the workpiece insertion opening 22 a secured by the fitting opening 22 of the main body 20.

  Thereafter, the handle H of the drilling machine M is turned to lower the drill D, and the upper end of the drill D is drilled without shifting the processing point of the workpiece W fixed on the work table T of the drilling machine M. After confirming with the naked eye through the part 23, the rotation of the drill D is temporarily stopped, and the halves 31, 32 are put on the drill D from both sides of the drill D so as to be overlapped and connected to the upper opening 23. Next, the handle H is rotated again to lower the drill D, and the workpiece W is drilled by the drill D. Then, since the main body 20 covers the periphery of the workpiece W and the drill D, and the safety cover body 30 covers up to the high position of the drill chuck C, the chip-shaped chips generated by drilling are scattered around the periphery. The chip-like chips can be pushed in and can be collected from the discharge opening 24 through the extension pipe 40 into a collection bag (not shown).

  When the drilling of the workpiece W is completed, the handle H is turned upside down to raise the drill D, and the workpiece W is taken out. In this case, even if the drill D is raised, the safety cover body 30 covers the entire length of the drill D. Therefore, safety can be ensured because the operator cannot contact the drill.

  Thereafter, when drilling the second and subsequent workpieces W, the halves 31 and 32 are left attached without being removed and reattached. The drilling status of each workpiece W can be monitored through the transparent body 21a of the main body 2.

  Thus, according to the safety dust collecting cover 10 according to the present invention, the drill D can be lowered to the position where the workpiece W is processed with the safety cover 30 removed from the upper opening 23, so that the processing position can be confirmed. The positioning state of the drill D and the workpiece W can be confirmed accurately. Further, since the safety cover body 30 can be connected to the upper opening 23 even when the drill D is lowered, the speed of work can be secured, and the drill D is lowered to a position where the workpiece W is processed. Then, after confirming that the machining position is accurate, the safety cover body 30 can be connected to the upper opening 23 without lifting the drill D, so that convenience in work is enhanced. Since the discharge opening 24 is provided with the extension pipe 40, it can be connected to the chip discharge cylinder G such as a flexible duct at a position away from the work table T of the drilling machine M, so that the machine periphery is refreshed and workability is improved. Safety can be achieved.

Other Embodiments The safety dust collecting cover for a drilling machine according to one embodiment of the present invention has been described above. However, the present invention is not limited to the above embodiment and does not depart from the gist of the present invention. In this embodiment, various design changes are included.

  (1) In the above embodiment, the main body peripheral surface portion 21 of the main body 20 has a rectangular parallelepiped shape with a required size having an internal space, but is not limited to this internal space. For example, the main body 20 can be manufactured by machining a commercially available large size vinyl chloride cheese without the need for a mold, and the safety cover body 30 and the extension pipe 40 are commercially available. It can be manufactured at a very low cost by cutting a pipe made of vinyl chloride and diverting it.

  (2) In the above embodiment, a state in which the stopper S is in contact with the workpiece positioning guide g and stored in the fitting opening 22 of the main body 20 is shown. However, between the stopper S and the workpiece positioning guide g, A clearance may be provided to facilitate chip discharge. Further, the stopper S with the protrusion for preventing the workpiece fixing tool Q may be seen from the fitting opening 22.

  (3) In the above-described embodiment, the case where the transparent body 21a is provided in the portion corresponding to the workpiece insertion opening 22a of the main body peripheral surface portion 21 has been described. Any suitable location may be provided as long as the location of W can be confirmed.

  (4) In the main body 20 of the above embodiment, the fitting opening 22 is open from the lower surface of the main body peripheral surface portion 21 to one side surface so that the workpiece can be taken in and out through one opening. Is open from the lower surface of the peripheral surface of the main body to both side surfaces, and the workpiece W is rib-guided by the workpiece positioning guide g through an opening opened on one side surface, and the processing point of the workpiece W is positioned at the processing point in the main body 20; You may make it take out to the side surface direction on the opposite side of the main body 20 after drilling is completed. In this case, the discharge opening 24 serving as a chip discharge port may be provided at a position different from the insertion / removal direction by 90 °, for example, so as not to hinder the insertion / removal of the workpiece W.

  (5) In order to provide versatility with respect to the size of the workpiece, the present invention is provided with a workpiece positioning guide g fixed on the work table T of the drilling machine M so that the position of the workpiece W can be adjusted, and the machining position of the workpiece W by the drill D can be adjusted. Corresponding to this, by providing the fitting opening 22 of the main body 20 so as to largely cover the outside of the work positioning guide g, the degree of freedom of processing of the work W is widened, and the main body 20 can also be supported. .

It is a side view which shows the drilling operation | work of a drilling machine. FIG. 2 is a front view of a main part showing a state in which a safety dust collecting cover 10 according to the present invention is installed on a work table T of a drilling machine when performing a drilling operation with the drilling machine M shown in FIG. It is the III-III arrow line view in FIG. It is a perspective view which shows the main body in this invention. It is a disassembled perspective view of the safety cover body concerning this invention.

Explanation of symbols

M Drilling machine B Drill chuck B Head D Drill E Spindle F Positioning rod G Chip discharge tube T Work table Q Work fixing tool W Work g Work positioning guide 10 Drilling machine safety dust cover 11 Fixing screw 20 Main body 21 Main body peripheral surface 21a Transparent Body 22 Opening for fitting 22a Opening for inserting workpiece (Opening for inserting sample)
23 upper opening 24 discharge opening 25 fixing part 30 safety cover body 31, 32 half-divided body 31a notch 33 fitting piece 40 extension pipe for chip discharge

Claims (4)

A safety dust collecting cover for a drilling machine comprising a main body forming a work space and a safety cover body arranged on the upper part of the main body,
A fitting opening for fitting and fixing with a sample fixing tool fixed on the work table of the drilling machine is provided over the lower part and the side part of the main body,
The side of the main body is provided with a sample insertion opening for inserting the sample into the work space of the main body and a discharge opening for discharging cutting waste,
An upper opening for connecting and fixing a safety cover body for covering a drill attached to the drilling machine is provided at the upper part of the main body.
A safety dust collecting cover for drilling machines. The safety dust collecting cover of the drilling machine according to claim 1,
A safety dust collecting cover for a drilling machine, wherein at least a part of the peripheral surface portion of the main body is made of a transparent body. In the safety dust collecting cover of the drilling machine according to claim 1 or 2,
A safety dust collecting cover for a drilling machine, wherein the safety cover body is divided into two parts covering the drill from both sides of the drill. In the safety dust collecting cover of the drilling machine according to any one of claims 1 to 3,
A safety dust collection cover for a drilling machine, wherein an extension pipe for connecting to a chip discharge cylinder such as a flexible duct connected to a suction port of an air suction device is detachably connected to the discharge opening. .

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