JP5363184B2 - Handy type chamfering device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To apply chamfering processing to a workpiece irrespective of the size and the setting situation of the workpiece. <P>SOLUTION: A handy type chamfering device 10 applies the chamfering processing to a ridge G1 of the workpiece G while being held by a hand. The chamfering device includes: a recessively disposed block-shaped base 20 having on one surface thereof a V-shaped groove 22 formed of a first surface 221 and a second surface 222 orthogonal to each other over their entire length; a blade member 30 attached to the base 20 in a state that a blade edge of a cutting blade 32 extended in a direction crossing the extending direction of the V-shaped groove 22 on the groove bottom of the V-shaped groove 22 is protruded into the V-shaped groove 22; a first bolt member 50 as a blade edge protrusion amount adjustment means for adjusting an outward protrusion amount of the blade edge of the cutting blade 32 of the blade member 30; and a second bolt member 60 as a blade edge position adjustment means for adjusting a position in a width direction of the blade edge of the cutting blade 32 orthogonal to the extending direction of the V-shaped groove 22. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a handy type chamfering device for scraping a sharp ridge line portion of a tangible object made of metal or synthetic resin.

  Various types of blocks made of metal or synthetic resin (hereinafter referred to as workpieces) used for various applications manufactured by plane cutting either one or both of the two surfaces intersecting each other have ridge lines. In addition to being sharp, burrs formed at the time of surface cutting often remain, which is dangerous in handling and is unsightly in appearance, so that a so-called chamfering process is usually performed to scrape off the ridge line portion.

  Conventionally, chamfering is generally performed by file, but it is very troublesome to file a large amount of work by hand one by one, and there is a problem that it takes a lot of labor and time. Had.

  In order to solve such problems, the inventor of the present invention provides a chamfering apparatus as described in Patent Document 1 that is easy to operate and can be reliably chamfered by anyone without skill. Invented.

  In this chamfering device, a work is placed on a mounting table, and one side surface of the workpiece is abutted against a positioning piece, and the other side surface is abutted to a positioning rod, whereby the work piece is placed on the mounting table. Positioning for chamfering is performed, and in this positioning state, the blade holder is moved in parallel with the side surface of the work piece along the positioning rod, whereby the cutting blade provided on the blade holder and the edge of the mounting table are moved. The ridge line portion of the work piece protruding outside from the gap between the lower edge portion of the positioning rod is scraped off.

  As described above, the chamfering apparatus disclosed in Patent Document 1 has the workpiece held on the two sides by the positioning piece and the positioning rod on the mounting table, and in this state, the blade holder guided by the positioning rod is used for the workpiece. The ridge line portion of the workpiece is linearly and beautifully chamfered by the cutting blade.

Japanese Patent No. 2857059

  However, in the chamfering apparatus of Patent Document 1, the workpiece to be chamfered is limited to a size that can be placed on the mounting table, and is a large workpiece that protrudes from the mounting table. Cannot be chamfered and lacks versatility.

  Therefore, as a matter of course, the chamfering device of Patent Document 1 cannot be applied to a large installation type workpiece.

  The present invention has been made to solve the conventional problems, and is capable of performing chamfering on the work regardless of the size and installation state of the work, and is versatile. The object is to provide a handy type chamfering device.

The invention according to claim 1 is a handy-type chamfering device that scrapes off a sharp ridge line portion of a workpiece to eliminate the sharpened state, and includes a first surface and a second surface that are orthogonal to each other over the entire length. A base having a block shape in which a groove is recessed on one surface, and a cutting edge of a cutting blade extending in a direction intersecting the extending direction of the V-shaped groove on the groove bottom of the V-shaped groove A blade member mounted on the base in a state of projecting from the formed opening into the V-shaped groove, and a blade edge protrusion amount adjusting means for adjusting a protrusion amount of the cutting edge of the cutting blade into the V-shaped groove; characterized in that it comprises in the direction orthogonal to both the protrusion amount adjustment direction of direction and the cutting edge extension of the V-shaped grooves, and a cutting edge position adjusting means for adjusting the position of the cutting edge of said cutting blade is there.

  According to such a configuration, the workpiece is sandwiched between the V-shaped grooves with the ridge line portion included, and the first and second surfaces of the V-shaped groove are in contact with the adjacent surfaces of the ridge line portion of the workpiece. The base is pressed against the ridge line of the work piece so that the base is continuously gripped by the hand and moved along the ridge line, so that the ridge line of the work is scraped off by the blade edge of the blade member. As a result, the sharp edge of the ridgeline portion of the work piece is eliminated.

  And since the protrusion amount of the blade edge | tip in a V-shaped groove | channel can be arbitrarily set by adjusting the amount of chamfering amounts by adjusting with a blade edge | tip protrusion amount adjustment means, the optimal chamfering state according to a condition is implement | achieved.

  And since such a chamfering device is a handy type and can be chamfered by holding it by hand, it is not affected by the dimensions and arrangement state of the work piece, any size and arrangement state Even if it is a thing, it can be made into the object of chamfering operation, and can make a chamfering apparatus very versatile.

Further , the position of the cutting edge of the cutting blade, that is, the position in the width direction of the cutting edge in the direction orthogonal to both the extending direction of the V-shaped groove and the protruding amount adjustment direction of the cutting edge, can be changed by the cutting edge position adjusting means. Therefore, when the position hitting the ridge line portion of the cutting edge wears and the cutting function is lowered, the cutting function of the cutting edge can be restored by operating the cutting edge position adjusting means to change the position where the cutting edge hits.

According to a second aspect of the invention according to claim 1, wherein the substrate is formed by the V-shaped groove is cut out towards the V-shaped grooves from the rear of the side opposite to the one surface is recessed Further, a mounting recess having a pair of opposing walls extending in a direction perpendicular to both the extending direction of the V-shaped groove and the protruding amount adjustment direction of the blade edge and the opening on the back side of the mounting recess are closed. A blade member holder that holds the blade member and is mounted in the mounting recess in sliding contact with the opposing walls, and in a direction in which the blade member is separated from the V-shaped groove. A first bolt member that is screwed through and through the closing plate so that the tip of the blade protrusion amount adjusting means abuts against the back side of the blade member holder. And the blade edge position adjusting means is provided on the back side of the head. It is characterized in that the end of the KIHA member holder is a second bolt member which is screwed into the base body such that abutting-stops.

  According to such a configuration, the amount of protrusion of the blade member into the V-shaped groove of the blade member by the forward / reverse rotation operation around the axis of the first bolt member as the blade edge protrusion amount adjusting means is adjusted via the blade member holder. Since the position where the blade edge hits the ridge line portion of the work piece can be changed via the blade member holder by rotating the second bolt member as the blade edge position adjusting means forward and backward. In addition, the configuration of both means is made very simple, and each adjustment operation performed by these both means becomes easy.

According to a third aspect of the present invention, in the second aspect of the present invention, the blade member holder is supported by the guide block so as to be movable in a guide block and a protruding amount adjustment direction of the blade edge, and the blade and a holder body for holding the member, the second bolt member is to adjust the position of the blade section Zaiho Ruda through the guide block.

  According to such a configuration, the blade member holder is smoothly moved by the guide of the guide block mounted in the mounting recess, and the blade member holder is stably positioned.

According to a fourth aspect of the invention, in the invention according to any one of the first to third aspects, the base is formed of a metal material, and the first and second surfaces of the base are respectively made of a synthetic resin. The contact plate is laminated.

  According to such a configuration, since the base is made of a metal material, the chamfering operation can be performed in a stable state with excellent operability of the chamfering operation due to its moderate weight. Further, since the first and second surfaces forming the V-shaped groove of the metal base are respectively laminated with synthetic resin contact plates, the contact with the work piece becomes smooth, thereby chamfering. The apparatus can be slid along the ridge line portion of the workpiece with a good feel, and as a result, the operability of the chamfering apparatus can be improved.

  According to the handy type chamfering apparatus according to the present invention, since the chamfering operation of the ridge line portion of the work piece can be performed by gripping the chamfering apparatus by hand, the work piece is compared with the conventional stationary type. There are no restrictions on the dimensions and arrangement of the chamfer, and any size or arrangement can be used for chamfering operations and can be easily carried around. It is also possible to bring the chamfering device into a place where it is provided and perform chamfering work on site, and the chamfering device can be used for general purposes.

It is a disassembled perspective view which shows one Embodiment of the handy type chamfering apparatus which concerns on this invention. It is an assembly perspective view of the chamfering apparatus shown in FIG. 1, and is a partially cutaway perspective view seen from the right side. It is the assembly perspective view of the chamfering apparatus shown in this FIG. 1, and is the perspective view seen from the left side. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 2, showing a state where the blade member at the lowest position is positioned at the rightmost position. In the cross-sectional view shown in FIG. 4, the blade member at the standard height position is changed to the leftmost position. In the cross-sectional view shown in FIG. 4, a state in which the blade member at the rightmost position is changed to the uppermost position is shown. It is the VII-VII sectional view taken on the line of FIG. It is a perspective view which shows an example of the usage condition of a chamfering apparatus.

  FIG. 1 is an exploded perspective view showing an embodiment of a handy type chamfering apparatus according to the present invention. 2 and 3 are assembled perspective views of the chamfering device shown in FIG. 1, FIG. 2 is a view seen from the right side, and FIG. 3 is a view seen from the left side.

  FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 2 and shows a state in which the blade member 30 at the lowest position is set at the rightmost position. FIG. 5 shows a state in which the blade member at the standard height position (intermediate height position) is changed to the leftmost position in the cross-sectional view shown in FIG. 6 shows a state in which the blade member at the rightmost position is changed to the uppermost position in the cross-sectional view shown in FIG. 7 is a cross-sectional view taken along line VII-VII in FIG.

  1 to 7, the width direction orthogonal to the chamfering operation direction of the chamfering device 10 is the left-right direction X, the chamfering operation direction of the chamfering device 10 is the front-rear direction Y, and the vertical direction is orthogonal to the chamfering operation direction of the chamfering device 10. Is defined as Z, in particular -X is left, + X is right, -Y is forward, + Y is backward, -Z is downward, and + Z is upward.

  First, as shown in FIG. 1, the handheld type chamfering apparatus 10 according to the present embodiment is sharpened by scraping the sharp ridge line part G1 of the work G (FIG. 4) by gripping and operating it by hand. The base 20 in which the V-shaped groove 22 having a triangular shape in end view is recessed on the left surface side and the direction in which the V-shaped groove 22 extends in the groove bottom of the V-shaped groove 22 A blade member on which the blade member main body 31 is mounted on the base body 20 with the cutting blade 32 extending in a direction intersecting with the blade faced into the V-shaped groove 22 through an opening formed in the groove bottom of the V-shaped groove 22 30, the blade member holder 40 that holds the blade member 30, and the protruding amount of the blade member 30 held by the blade member holder 40 to the outside of the cutting blade 32 (specifically, the V-shaped groove 22 The amount of protrusion into the space surrounded by the first surface 221 and the second surface 222) A first bolt member (blade edge protrusion amount adjusting means) 50 to be kneaded and a second bolt member (blade edge position adjusting means) 60 that adjusts the position in the width direction of the cutting blade 32 perpendicular to the extending direction of the V-shaped groove 22. It has a basic configuration.

  The base body 20 is made of a metal material such as stainless steel, and has a block-shaped base body 21 whose overall appearance is a rectangular parallelepiped that is long in the front-rear direction, and a mounting recess 28 described later of the base body 21. It consists of a closing plate 29 that closes the right side opening.

  The V-shaped groove 22 is recessed on the left surface of the base body 21 so as to extend in the front-rear direction. The ridge line part G1 of the work G is fitted into the V-shaped groove 22 and is used for chamfering the ridge line part G1.

  The V-shaped groove 22 has a first surface 221 that is formed by cutting down a predetermined dimension from the left edge of the top surface 23 of the base body 21 toward the right, and the right end of the first surface 221. The second surface 222 is formed by cutting downward from the edge toward the left.

  The angle formed by the intersection of the first and second surfaces 221 and 222 is set to a right angle in this embodiment.

  In the present embodiment, the contact plates 223 made of synthetic resin are laminated on the first and second surfaces 221 and 222 by screws. Each of these contact plates 223 has the same uniform thickness dimension. The angle in the end view formed by each of the contact plates 223 is the same as the angle formed by the first and second surfaces 221 and 222 of the V-shaped groove 22. In the present embodiment, this angle is set to 90 °.

  Therefore, when the angle of the ridge line part G1 of the workpiece G (the angle formed by the ridge line part G1 when the ridge line part G1 is cut by a plane orthogonal to the ridge line) is 90 ° or less, the chamfering of the present embodiment The chamfering process can be performed on the ridge line part G <b> 1 of the workpiece G by the apparatus 10 via the pair of contact plates 223. Since the contact plate 223 is soft and smooth against the workpiece G, the chamfering process can be performed with a good feel.

  A mounting recess 28 reaching the first and second surfaces 221 and 222 for mounting the blade member 30 and the blade member holder 40 is provided on the right surface (back surface) 24 side of the base body 21. The mounting recess 28 is formed by cutting out the central portion in the front-rear direction of the right surface 24 of the base body 21 by a predetermined dimension toward the left over the entire length in the vertical direction. The notch depth toward the left of the mounting recess 28 is such that the portion related to the first surface 221 is deepened to a position slightly to the right of the left edge of the top surface 23, whereas the second surface 222 The notch depth toward the left of the second surface 222 is set to a position that is shifted to the left by a slight distance (specifically, 5 to 10 mm) from the right edge of the second surface 222.

  In the mounting recess 28, a pair of front and rear opposing walls 210 facing each other in parallel at the right side of the V-shaped groove 22 is formed. Further, a cutting blade 32 (described later) of the blade member 30 is placed in the V-shaped groove 22 at the position of each proximal end of the first and second surfaces 221 and 222 in the mounting recess 28, that is, at the groove bottom of the V-shaped groove 22. A cutting edge projecting opening 25 is formed so that the cutting surface 32 of the blade member 30 is visually recognized at a portion of the mounting recess 28 where the first surface 221 is notched. Is provided. The state of the blade member 30 can be checked by looking into the V-shaped groove 22 from the viewing opening 26.

  The blade member 30 and the blade member holder 40 are mounted in a contact state between the pair of opposing walls 210 in the mounting recess 28. In particular, the blade member holder 40 is mounted in a slidable contact state between the pair of opposing walls 210 so as to be movable in the left-right direction.

  Further, the back wall 211 of the mounting recess 28 is provided with a notch recess 27 for fitting the head of the second bolt member 60 at the lower end position in the center in the front-rear direction. The notch recess 27 is provided with a second bolt hole 271 (FIG. 4) extending in the vertical direction for screwing the second bolt member 60.

  The closing plate 29 is for preventing the blade member 30 and the blade member holder 40 mounted in the mounting recess 28 from falling off, and is formed in a rectangular shape and can cover a substantially lower half of the mounting recess 28. The dimensions are set as follows. On the right surface side of the closing plate 29, a circular recess 291 is provided at the center portion in the left-right direction and slightly above the center portion in the up-down direction, and at the center position of the circle recess 291. The 1st bolt hole 292 penetrated is screwed. The first bolt hole 292 is for screwing the first bolt member 50. The first bolt hole 292 is provided at a position corresponding to a holder body 42 described later of the blade member holder 40.

  A third bolt hole 293 is threaded through the closing plate 29 immediately below the circular recess 291. The third bolt hole 293 is for screwing a third bolt member 70 to be described later, and is provided at a position corresponding to the guide block 41 of the blade member holder 40.

  Further, the closing plate 29 is provided with two insertion holes 294 arranged in parallel in the vertical direction at the front and rear edges, respectively. On the other hand, the base body 21 is screwed with screw holes 212 corresponding to the respective insertion holes 294 at positions near the front and rear of the mounting recess 28 on the right surface 24. Then, screws B are inserted into the respective insertion holes 294 and screwed into the corresponding screw holes 212 to be fastened, so that the closing plate 29 is attached to the base body 21 as shown in FIG. Become.

  The blade member 30 is for cutting and chamfering the ridge line part G1 of the work G on which the V-shaped groove 22 of the base body 21 is covered. The blade member 30 includes a flat blade member body 31 that has a rectangular shape in plan view, and a plurality of cutting blades 32 that are formed in a wave shape on the left edge of the blade member body 31. The cutting edge of each cutting blade 32 is directed rearward.

  The plurality of cutting blades 32 are configured such that the protruding amount of the blade edge from the blade member main body 31 gradually increases from the downstream side in the cutting direction to the upstream side. Therefore, if the ridge line part G1 of the workpiece G is cut with the cutting edge 32 by moving the cutting blade 32 backward, the amount of cutting increases in order from the leading edge to the subsequent cutting edge. A predetermined chamfering amount of the ridge line portion G1 can be easily achieved.

  The blade member holder 40 holds the blade member 30 in a stable state so as to be movable, and is supported by a rectangular parallelepiped guide block 41 and being guided by the guide block 41 so as to be movable in the left-right direction at the upper part thereof. A holder main body 42, a locking piece 43 provided on the upper surface side of the holder main body 42 for locking the blade member 30, and a coil spring for biasing the holder main body 42 rightward (biasing). Member) 44.

  The overall shape of the guide block 41 is set to a rectangular parallelepiped shape. The guide block 41 is set to have a front-rear dimension slightly smaller than an inner dimension between the pair of opposed walls 210 of the mounting recess 28 and a left-right dimension slightly smaller than a left-right dimension of the opposed wall 210. ing. The vertical dimension of the guide block 41 is set to be smaller than the vertical dimension of the back wall 211 of the mounting recess 28 (approximately 2/3 of the facing wall 210 in the example shown in FIG. 4).

Therefore, the guide block 41 can be mounted in the mounting recess 28 in a sliding contact state. The guide block 41 can be moved up and down in a state surrounded by four walls by being fitted in the mounting recess 28 and closing the right surface opening of the mounting recess 28 by the closing plate 29 .

  A dovetail groove 411 extending in the left-right direction is provided at the center position on the upper surface of the guide block 41. The dovetail 411 has a groove bottom that has a front-rear dimension that is larger than a front-rear dimension of the opening on the upper surface when viewed from the right side, and has a trapezoidal shape when viewed from the right.

  The holder body 42 is set to have the same longitudinal dimension as that of the guide block 41, the lateral dimension is set slightly shorter than that of the guide block 41, and the vertical dimension of the holder body 42 is larger than the vertical dimension of the guide block 41. It is set slightly shorter.

  On the lower surface of the holder main body 42, a dovetail member 421 having a trapezoidal shape as viewed from the right side is provided, which is fitted in the dovetail groove 411 of the guide block 41 in a sliding contact state. When the dovetail member 421 is fitted into the dovetail groove 411, the holder body 42 can move forward and backward in the left-right direction while being prevented from being pulled upward.

  In addition, a fitting recess 422 for fitting the blade member 30 is provided on the upper surface of the holder main body 42 so as to fit the blade member 30 that is surrounded by the front and rear sides and the right side and is open at the upper and left sides. The fitting recess 422 is set to have the same vertical dimension as the thickness dimension of the blade member 30. Further, the left and right dimensions of the fitting recess 422 are set slightly shorter than that of the blade member 30, whereas the longitudinal dimension of the fitting recess 422 is set slightly longer than that of the blade member 30.

  Accordingly, the cutting blade 32 of the blade member 30 is slightly protruded outward from the fitting recess 422 by being fitted into the fitting recess 422 while the blade member 30 is moved forward and to the right. A gap is formed behind the recess 422.

  The locking piece 43 is fitted into a gap formed at the rear in the fitting recess 422 in a state where the blade member 30 is fitted in the fitting recess 422 in such a manner that the blade member 30 is forward-fed and right-justified. The locking piece 43 has a left-right dimension slightly shorter than that of the blade member 30 and a front-rear dimension slightly shorter than that of the gap.

  The locking piece 43 is provided with an oblique hole 431 inclined downward from the upper surface to the front, and the bottom surface of the fitting recess 422 is inclined in correspondence with the oblique hole 431. An extending oblique screw hole 423 is screwed. The screw B inserted into the oblique hole 431 of the locking piece 43 is continuously screwed into the oblique screw hole 423 and fastened.

  Therefore, in the state in which the blade member 30 and the locking piece 43 are fitted in the fitting recess 422, the screw B is screwed into the oblique screw hole 423 via the oblique hole 431 and fastened, whereby the locking piece 43 is fitted. The blade member 30 is moved forward in the front side 422, thereby pressing the blade member 30 forward. As a result, the blade member 30 is fitted and fixed in the recessed portion 422.

  In a state where the blade member 30 is fixed to the holder main body 42, the cutting blade 32 protrudes leftward from the holder main body 42 as shown in FIG. The ridge line portion G1 of the workpiece G covered with the groove 22 is in contact with the cutting edge of the cutting blade 32. Therefore, by moving the chamfering device 10 rearward along the ridge line part G1 in this state, the ridge line part G1 is scraped off by the cutting edge of the cutting blade 32 and the chamfering process is executed.

  The coil spring 44 is for pressing the holder body 42 toward the right. In order to mount the coil spring 44, the holder main body 42 is provided with a mounting hole 424 (FIG. 4) drilled to the right on the left side. As shown in FIG. 4, when the coil spring 44 is fitted into the mounting hole 424 in a compressed state, the holder body 42 is pressed rightward, whereby the left surface of the holder body 42 and the base body 21 are A gap d as a movement allowance is formed between the inner wall 211 of the mounting recess 28.

  The first bolt member 50 has a function as a blade tip protrusion amount adjusting means of the present invention that moves the holder main body 42 in the left-right direction to set the position of the holder main body 42 in the left-right direction. The first bolt member 50 includes a conical head 51 whose right side is set to taper rightward, and a bolt main body that is concentrically protruded leftward from the left end surface of the conical head 51. 52, and a knob head 53 that is concentrically protruded from the right end of the conical head 51 toward the right.

  The conical head 51 has a maximum diameter set slightly smaller than the inner diameter of the circular recess 291 of the closing plate 29. The bolt body 52 is dimensioned so that it can be screwed into a third bolt hole 293 formed at the center of the circular recess 291 of the closing plate 29. Accordingly, when the bolt main body 52 is screwed into the third bolt hole 293 from the right side of the closing plate 29, the conical head 51 is fitted into the circular recess 291 as shown in FIG.

  In this state, the tip of the bolt body 52 is in contact with the right surface of the holder body 42 as shown in FIG. Therefore, when the knob head 53 is turned clockwise in FIG. 2 starting from the state shown in FIG. 4, the holder main body 42 is pushed by the bolt main body 52 and resists the urging force of the coil spring 44 to the left. Move towards. When the holder main body 42 moves to the left by the maximum distance, the left surface of the holder main body 42 is in contact with the back wall 211 of the base body 21 as shown in FIG.

  Therefore, the amount of protrusion of the cutting edge 32 of the cutting blade 32 of the blade member 30 mounted on the holder main body 42 into the V-shaped groove 22 by changing the left and right position of the holder main body 42 by rotating the first bolt member 50. Can be adjusted.

  On the surface of the conical head 51, numbers “0”, “1”, “2”, “3” and “4” are imprinted counterclockwise at equal intervals. When “0” is positioned at the reference mark 295 marked on the upper right side of the closing plate 29, the holder body 42 is positioned at the rightmost end as shown in FIG. And the left side of the holder main body 42 are maximized. By turning the picking head 53 clockwise starting from this point, the numerical value corresponding to the cutting edge protruding opening 25 increases, and the increase in the numerical value reduces the gap d. Then, each time the number increases, the holder body 42 moves to the left. When “4” is positioned at the reference mark 295, the holder body 42 reaches the leftmost end as shown in FIG. A maximum gap d1 is formed between the right side of the main body 42 and the left side of the closing plate 29.

  By marking such a number on the surface of the conical head portion 51 of the first bolt member 50, an indication of the chamfering amount of the ridge line portion G1 of the work G can be obtained.

  The second bolt member 60 functions as the blade edge position adjusting means of the present invention for moving the holder main body 42 in the vertical direction and setting the vertical position of the holder main body 42. As shown in FIGS. 1 and 4, the second bolt member 60 includes a bolt main body 61 in which a thread is screwed, and a bolt main body 61 that is concentrically and integrally formed at the end of the bolt main body 61. A large-diameter operation head 62 is provided.

  The second bolt member 60 has a bolt main body 61 screwed into the second bolt hole 271 (FIG. 4) provided at the lower left end of the base body 21, and the operation head 62 is positioned at the lower left of the guide block 41. Dimensioned to interfere with the edge. Therefore, when the bolt body 61 of the second bolt member 60 is screwed into the second bolt hole 271 starting from the state shown in FIG. 4, the operation head 62 pushes the guide block 41 upward. When the bolt main body 61 is screwed into the second bolt hole 271 as much as possible, the blade member holder 40 is positioned at the uppermost position as shown in FIG. At this time, the cutting edge of the cutting blade 32 is in a state of interfering with the ridge line portion G1 of the work G at a position above the position shown in FIG.

  Therefore, the cutting edge of the cutting blade 32 with respect to the ridge line portion G1 of the work G is obtained by changing the screwing amount of the bolt main body 61 into the second bolt hole 271 by rotating the operation head 62 of the second bolt member 60. The interference position can be adjusted. Therefore, when the cutting function of the cutting edge of the cutting blade 32 is lowered, the cutting position of the cutting blade 32 is changed by rotating the second bolt member 60 to change the interference position of the cutting blade 32 with respect to the ridge line portion G1 of the work G. The cutting function of the cutting edge can be restored.

  The third bolt member 70 is for fixing the set position of the guide block 41. The third bolt member 70 includes a bolt main body 71 screwed into a third bolt hole 293 screwed to the closing plate 29, and an operating head formed concentrically and integrally on the right end portion of the bolt main body 71. Part 72.

  The third bolt 70 is loosened when the second bolt member 60 is operated, and is tightened when the operation of the second bolt member 60 is completed. As a result, the guide block 41 is pressed toward the inner wall 211 of the mounting recess 28 of the base body 21 at the tip of the bolt body 71, so that the set position of the guide block 41 is maintained.

  FIG. 8 is a perspective view showing an example of a usage situation of the chamfering device 10. In addition, the direction display by X and Y in FIG. 8 is the same as in FIG. 1 (−X: leftward, + X: rightward, −Y: forward, + Y: backward). In FIG. 8, a long square member G ′ having four surfaces cut by plane is shown as the work G. Hereinafter, the chamfering process by the chamfering apparatus 10 will be described with reference to FIG. 8 while referring to other drawings as necessary.

  As shown in FIG. 8, a square member G ′ whose four surfaces are subjected to plane cutting processing has sharp ridge lines G1 formed at four corners. When the chamfering process is performed on each ridge line portion G1 of the square member G ′, first, the back side (the side on which the mounting recess 28 is provided) of the base 20 of the chamfering device 10 is placed with one hand (FIG. In the example shown in FIG. At this time, the orientation of the chamfering device 10 is set so that the cutting edge of the cutting blade 32 of the blade member 30 faces backward.

  Subsequently, in this state, the pair of contact plates 223 are brought into contact with the adjacent surfaces of the square member G ′, and the ridge line portion G1 of the square member G ′ is covered with the V-shaped groove 22. By doing so, the ridge line portion G1 of the square member G ′ is in a state of interfering with the cutting edge of the cutting blade 32 of the blade member 30.

  When the chamfering device 10 is pressed toward the ridge line portion G1 in this state and moved rearward as indicated by a black arrow in FIG. 8, the cutting edge of the cutting blade 32 that interferes with the ridge line portion G1 is moved to the ridge line. The part G1 is cut and a chamfering process is performed thereby.

  As described in detail above, the chamfering apparatus 10 according to the present embodiment is a handy type that is gripped by hand and chamfers the ridgeline part G1 of the work G, and is orthogonal to each other over the entire length. A base body 20 having a block shape in which a V-shaped groove 22 formed by intersecting the first surface 221 and the second surface 222 is recessed in one surface, and a direction in which the V-shaped groove 22 extends in the groove bottom of the V-shaped groove 22 The amount of protrusion of the blade member 30 mounted on the base body 20 in a state of protruding into the V-shaped groove 22 extending in the intersecting direction and the cutting edge 32 of the blade member 30 into the V-shaped groove 22 is adjusted. A first bolt member 50 as a blade tip protrusion amount adjusting means, and a second bolt member 60 as a blade edge position adjusting means for adjusting the position in the width direction of the cutting edge of the cutting blade 32 perpendicular to the extending direction of the V-shaped groove 22. It is prepared for.

  According to such a configuration, the workpiece G is sandwiched between the V-shaped grooves 22 in a state including the ridge line portion G1, and the first and second surfaces 221 and 222 of the V-shaped grooves 22 are made of synthetic resin contact plates. The base 20 is pressed against the ridge line part G1 of the work G in a state where the base 20 is in contact with the adjacent surfaces of the ridge line part G1 of the work G through the 223, and then the base 20 is manually moved to the ridge line part. By moving along G <b> 1, the ridge line portion G <b> 1 is scraped off by the cutting edge of the cutting blade 32 of the blade member 30. In this way, the workpiece G can be subjected to a so-called chamfering process that eliminates the sharp state of the ridge line portion G1 of the workpiece G.

  And since the protrusion amount into the V-shaped groove 22 of the cutting edge of the cutting blade 32 in the V-shaped groove 22 can change the degree of chamfering amount arbitrarily by changing the screwing amount of the first bolt member 50, An optimum chamfering state according to the situation can be realized.

  Further, since the position in the width direction of the cutting edge of the cutting blade 32 orthogonal to the extending direction of the V-shaped groove 22 can be changed by adjusting the screwing amount of the second bolt member 60, it hits the ridge line portion G 1 of the cutting blade 32. When the cutting edge is worn out and the cutting function is lowered, the cutting function of the cutting blade 32 can be restored by operating the second bolt member 60 to change the position where the cutting edge strikes.

  Such a chamfering device 10 is of a handy type and can be chamfered on the workpiece G by gripping the chamfering device 10 by hand. Therefore, the chamfering apparatus 10 can be used for chamfering processing regardless of the size or arrangement of the workpiece G, and the chamfering apparatus 10 can be made extremely versatile.

  Further, in the present embodiment, the base body 20 is formed by cutting out from the back side (right surface 24) opposite to the surface on which the V-shaped groove 22 is recessed toward the V-shaped groove 22. A mounting recess 28 having a pair of opposing walls 210 extending in a direction orthogonal to the extending direction of the groove 22 and parallel to each other, and a closing plate 29 for closing the opening of the right surface 24 of the mounting recess 28 are provided.

  Further, the blade member 30 is held on the base body 20, and the blade member 30 is mounted on the mounting recess 28 in sliding contact with the opposing walls 210, and the blade member 30 is separated from the V-shaped groove 22. And a coil spring 44 for urging the spring.

  The first bolt member 50 is threaded through the closing plate 29 so that the tip of the first bolt member 50 abuts against the back surface (right surface) side of the blade member holder 40, and the second bolt member 60 has an operation head thereof. The back side of 62 is screwed into a second bolt hole 271 that is screwed to the bottom surface of the base body 20 so as to abut against the bottom surface side of the blade member holder 40.

  According to such a configuration, the amount of protrusion of the cutting edge 32 of the blade member 30 into the V-shaped groove 22 by the forward / reverse rotation operation around the axis of the first bolt member 50 as the blade edge protrusion amount adjusting means. It can be adjusted via the blade member holder 40, and the cutting edge of the cutting blade 32 hits the ridge line part G1 of the work G by operating the second bolt member 60 as the cutting edge position adjusting means forward and backward. The position can be changed via the blade member holder 40. As a result, the configuration of both means can be made extremely simple, and a predetermined setting operation for adjusting by both means can be easily performed. Can do.

  The mounting recess 28 is provided with a guide block 41 that holds the blade member holder 40 and guides the movement of the blade member holder 40 in the direction orthogonal to the direction in which the V-shaped groove 22 extends. Since the position of the elbow holder of the blade member 30 is adjusted via the guide block 41, the vertical movement of the blade member holder 40 is smoothly performed by the guide of the guide block 41 mounted in the mounting recess 28. In addition, the blade member holder 40 can be set in a stable position.

  Furthermore, in this embodiment, since the contact plates 223 made of synthetic resin are laminated on the first and second surfaces 221 and 222 of the base body 20 formed of a metal material, the base body 20 made of a metal material. The chamfering operation can be stabilized by an appropriate weight.

  Further, the contact with the work G is smoothed by the synthetic resin contact plates 223 laminated on the first and second surfaces 221 and 222 forming the V-shaped groove 22 of the metal base body 20, respectively. Thereby, the chamfering apparatus 10 can be slid along the ridge line part G1 of the workpiece G with a good feel, and as a result, the operability of the chamfering apparatus 10 can be improved.

  The present invention is not limited to the above embodiment, and includes the following contents.

(1) In the above embodiment, the blade member holder 40 is configured to include the guide block 41 and the holder main body 42, and only the holder main body 42 guides in a state where the movement of the guide block 41 in the left-right direction is prevented. The guide block 41 is omitted instead of this, and only the holder main body 42 can be moved in the left-right direction within the mounting recess 28 while being guided by the block 41. Good. By doing so, it is possible to contribute to the reduction of the number of parts because the guide block 41 need not be provided.

  (2) In the above-described embodiment, the so-called pressing method in which the operator presses the chamfering device 10 to perform the chamfering process on the ridge line portion G1 of the workpiece G has been described. However, the chamfering process is not limited to the chamfering method by using the chamfering method, but the chamfering process is performed by pulling the chamfering device 10 toward the front side of the operator. You may be fine. However, when the chamfering process is performed on the ridge line portion G1 of the workpiece G by the cutting method, the cutting edge of the cutting blade 32 of the blade member 30 needs to be directed toward the operator.

(3) In the above-described embodiment, the contact plates 223 made of synthetic resin are laminated on the first and second surfaces 221 and 222 of the V-shaped groove 22, respectively. rather than being limited to laminating the contact plate 223 to the surface 221 and 222 may not be formed in particular contact plate 223.

  (4) In the above embodiment, a biasing member that biases the blade member holder 40 downward may be provided. In this case, for example, a plate spring is used as the urging member, one end of the plate spring is embedded in the opposing wall 210 of the mounting recess 28 of the base body 21, and the other end is pressed against the upper surface of the holder body 42. do it. By doing so, the blade member holder 40 is always pressed downward by the leaf spring. Therefore, when the second bolt member 60 is loosened, the blade member holder 40 is automatically pushed by the leaf spring. Since it descends, it is not necessary to press the blade member holder 40 with a finger one by one, and the operability of the second bolt member 60 as the blade tip position adjusting means can be improved accordingly.

  (5) In the above embodiment, the first bolt member 50 is employed as the cutting edge protrusion amount adjusting means, and the second bolt member 60 is employed as the blade edge position adjusting means. However, bolts are used as these preparing means. Instead of this, an eccentric cam may be employed, and the protruding amount of the blade edge and the position of the blade edge may be adjusted by a rotation operation around the axis of the eccentric cam.

DESCRIPTION OF SYMBOLS 10 Chamfering apparatus 20 Base body 21 Base body 210 Opposite wall 211 Back wall 212 Screw hole 22 V-shaped groove 221 1st surface 222 2nd surface 223 Contact plate 23 Top surface 24 Right surface (back surface)
25 Cutting edge projecting opening 26 Viewing opening 27 Notch recess 271 Second bolt hole 28 Mounting recess 29 Closing plate 291 Circular recess 292 First bolt hole 293 Third bolt hole 294 Insertion hole 295 Reference mark 30 Blade member 31 Blade member main body 32 Cutting Blade 40 Blade member holder 41 Guide block 411 Dovetail groove 42 Holder body 421 Dovetail member 422 Recess 423 Screw hole 424 Mounting hole 43 Locking piece 431 Diagonal hole 44 Coil spring (biasing member)
50 1st bolt member (blade edge protrusion amount adjusting means)
51 Conical head 52 Bolt body 53 Knob head 60 Second bolt member (blade edge position adjusting means)
61 Bolt body 62 Operation head 70 Third bolt member 71 Bolt body 72 Operation head G Workpiece G 'Square material G1 Edge line part d, d1 Gap B Screw

Claims (4)

It is a handy type chamfering device that removes the sharp state by scraping off the sharp ridge line part of the work,
A base body having a block shape in which a V-shaped groove composed of a first surface and a second surface orthogonal to each other over the entire length is recessed in one surface;
In the state where the cutting edge of the cutting blade extending in the direction intersecting with the extending direction of the V-shaped groove is projected into the V-shaped groove from the opening formed in the groove bottom of the V-shaped groove. A blade member attached to the substrate;
A blade tip protrusion amount adjusting means for adjusting a protrusion amount of the cutting blade into the V-shaped groove;
A handy type of blade-type position adjusting means for adjusting the position of the cutting edge of the cutting blade in a direction orthogonal to both the extending direction of the V-shaped groove and the protruding amount adjusting direction of the cutting edge . Chamfering device. The base is formed by cutting out the V-shaped groove from the back surface opposite to the one surface on which the V-shaped groove is provided in the direction of the V-shaped groove and the protruding amount adjusting direction of the blade edge. A mounting recess having a pair of opposing walls extending in a direction perpendicular to both and parallel to each other, and a closing plate for closing the opening on the back side of the mounting recess,
A blade member holder that holds the blade member and is mounted in the mounting recess in sliding contact with the opposing walls;
An urging member that urges the blade member in a direction away from the V-shaped groove,
The blade tip protrusion amount adjusting means is a first bolt member screwed through the closing plate so that a tip thereof comes into contact with the back side of the blade member holder,
2. The handy according to claim 1 , wherein the blade edge position adjusting means is a second bolt member screwed to the base so that a back side of the head abuts against an end of the blade member holder. Type of chamfering device. The blade member holder includes a guide block and a holder body that is supported by the guide block so as to be movable in the protruding amount adjustment direction of the blade edge and holds the blade member.
Said second bolt member, handheld chamfering apparatus according to claim 2, characterized in that through the guide block to adjust the position of the blade section Zaiho Ruda. Said substrate is formed of a metal material, the first and second surface of the substrate, each made of synthetic resin abutment plate according to any one of claims 1 to 3, characterized in that it is laminated Handy type chamfering device.

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