JP5083945B2 - Rail positioning device for U-shaped groove cutting - Google Patents

Description

  The present invention relates to a positioning device for fixing a rail, and more particularly to a device for positioning a moving rail of a cutting machine body that cuts a predetermined portion of a U-shaped groove.

  A U-shaped groove is provided on the side of the roadway, and rainwater is introduced. Recently, the edge of the U-shaped groove may be damaged due to the increase in the number of vehicles and the weight of the vehicle body. Therefore, a U-groove cutting device for cutting and removing the edge of the U-shaped groove and replacing it with a new edge is in use.

  The applicant has previously proposed a U-shaped groove cutting device (Patent Document 1). This U-shaped groove cutting device presses and fixes the U-shaped groove side wall with the tip of the expansion / contraction part of the jack disposed in the lower part of the U-shaped groove, and places a traveling rail on the jack. A movable base is provided on the rail, and the base is composed of a notch driving device for making a cut in the upper part of the U-shaped groove on the base and a feed driving device for running along the rail. The cutting machine body is arranged to perform cutting work, and the U-shaped groove cutting work is finished quickly and beautifully.

  However, since the rail is mounted on the central fixing portion of the jack, when the inner width of the U-shaped groove is different, the cutting angle of the cutting drive device must be increased, which may put a load on the device. Sometimes, the cutting machine itself had to be replaced with a larger one.

In addition, the U-groove cutting machine main body is connected with an electric cable or a hydraulic hose for supplying energy to the hydraulic motor or the electric motor at the rear portion without the cutting blade, and becomes a bent U-shaped groove or a dead end. In the U-shaped groove, cables and hoses may get in the way.
JP 2006-192677 A

  In order to solve the above-mentioned problem, the present invention makes it possible to move the position of the rail that moves the cutting machine body, reduces the cutting angle of the cutting drive device, reduces the load, and does not replace the cutting machine body. An object of the present invention is to provide a U-shaped groove cutting device that eliminates the influence of the width of the U-shaped groove.

  It is another object of the present invention to provide an apparatus that can remove the rail from the base plate, change the orientation of the cutting machine body together with the rail, and fix the rail to the base plate again to cut the U-shaped grooves at all locations.

  According to the present invention, in the U-shaped groove cutting rail positioning device for positioning the moving rail of the cutting machine main body for cutting the predetermined position of the U-shaped groove, the rail (3) installed in the U-shaped groove (2) ), A fixing device for positioning the rail (3), a pedestal (4) provided to run on the rail (3), and a U-shaped groove (2) installed on the pedestal (4) A cutting machine body (5) comprising a cutting drive device (6) for making a cut in the inner upper part of the machine and a feed drive device (7) for running along the rail (3). The fixing device includes a rail support body (8) having a fixing member (81) and holding members (82) provided on both sides of the fixing member (81) so as to be extendable and contractable. 9) is fastened to the fastening member (91), and the holding member (82) is U-shaped. The inner side surface of (2) is pressed to fix the rail support (81), the lower surface of the rail (3) is placed on the base plate (9), and the base plate (9) is fixed. The fastening member (91) is loosened, the fastening member (91) is slid in the left-right direction on the fixing member (81) of the rail support (8), and then the fastening member (91) is fixed to the fixing member (81). By doing so, the rail (3) placed on the base plate (9) is movably installed in the U-shaped groove (2).

  According to the present invention, in the U-shaped groove cutting rail positioning device for positioning the moving rail of the cutting machine main body for cutting a predetermined position of the U-shaped groove, the rail (2) installed in the U-shaped groove (2) 3), a fixing device for positioning the rail (3), a pedestal (4) provided to run on the rail (3), and a U-shaped groove (2) installed on the pedestal (4) A cutting machine main body (5) comprising a cutting drive device (6) for making a cut in the upper part of the inside) and a feed drive device (7) for running along the rail (3). The fixing device includes a rail support (8) having a fixing member (81) and a holding member (82) provided on both sides of the fixing member (81) so as to be extendable and contractable. The fixing member (81) includes a base plate. The fastening member (91) to which (9) is fixed is fixed, and the holding member (82) The rail support (81) is fixed by pressing the inner side surface of the groove (2), the lower surface of the rail (3) is placed on the base plate (9), and the fastening member (91) is interposed therebetween. Remove the rail (3) placed on the base plate (9), change the direction of the rail, place it on the base plate (9) again, and cut the U-shaped groove (2) inner side wall by the cutting blade (51) The direction is changed.

  According to the first aspect of the present invention, in order to fix the rail on which the cutting machine body travels, the rail is supported by the base plate fixed to the fixing portion and the holding portion that can be expanded and contracted by pressing the inner side surface of the U-shaped groove. Since the body is configured, the rail support can be securely fixed at any position inside the U-shaped groove regardless of the shape of the U-shaped groove.

  According to the invention of claim 2, since the base plate on which the rail is placed is movable between the fixed portions of the rail support, the cutting machine main body can be installed at an arbitrary position of the width of the U-shaped groove, and the rail Can be moved.

  According to the invention of claim 3, since the rail can be easily removed from the base plate and the orientation of the cutting machine body can be changed, all bent U-shaped grooves and dead-end U-shaped grooves are not obstructed by cables and hoses. Can be cut.

  According to the invention of claim 4, since the cutting blade is fixed by the flange on only one side of the mounting side, there is no projection on the multiple surfaces of the cutting blade, and it is possible to cut a deep position up to the vicinity of the rail height position, and The replacement parts can be replaced quickly without losing the mounting parts.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a cross-sectional front view showing an embodiment of a rail positioning device for a U-shaped groove cutting device of the present invention, and a side view of the rail positioning device of FIG.

  1 and 2, a rail positioning device for a U-shaped groove cutting device, which is generally indicated by the symbol A, can be disposed in a lower portion in the U-shaped groove 2, and the rail 3 and the rail 3 are arranged in a predetermined U-shaped groove. A rail support 8 is fixedly supported at the position.

  The rail support 8 has an installation location determined according to the cut location, and can be fixed at any location in the U-shaped groove.

  The moving part 1 including the cutting machine body 5 is guided and moved on the rail 3. That is, as shown in FIG. 2, the moving portion 1 is engaged with the rail 3 while being movable on the rail 3, and inside the U-shaped groove 2 installed on the frame, A cutting machine main body 5 that partially cuts the inner wall, and a notch that is installed on the mount 4 and that swings the tip of the cutting machine main body 5 left and right to form a cut inside the U-shaped groove 2 A drive device 6 and a feed drive device 7 which is installed on the gantry 4 and moves the entire moving part 1 along the rail 3 are configured.

  The rail 3 includes, for example, a rail floor material 31 and a pair of rail members 32 fixed to both side surfaces of the rail floor material 31 by welding or the like. In the example of illustration, the rail flooring 31 is comprised with the square steel pipe, and the rail member 32 is comprised with the equilateral angle steel.

The gantry 4 is formed as a housing in order to place the main part of the moving part 1 such as the cutting machine body 5. Below the gantry 4, a plurality of (six in the illustrated example) gantry legs 41 are provided. A guide roller 42 is pivotally supported at the lower end of the gantry leg 41 so as to be rotatable with respect to the gantry leg 41.

  Specifically, below the gantry 4, gantry legs 41 having guide rollers 42 rotatably supported at the tip are arranged in two rows in the length direction of the U-shaped groove 2 (groove flow direction). Each pair of guide rollers 42 symmetrically positioned in the width direction in the U-shaped groove 2 of the two rows engages with the triangular apex of the equilateral angle steel of the rail member 32, and the rail 3 is connected to each pair of guide rollers 42. , 42 so as to be sandwiched between them.

  The cutting machine main body 5 includes a disc-shaped cutting blade 51 having a plurality of diameters that can be exchanged, a cutting blade driving motor 52 that rotationally drives the cutting blade 51, and the number of rotations of the cutting blade driving motor 52. A speed reducer 53 for dropping the motor, one end connected to the speed reducer 53, a rotation direction changer 54 for converting the rotation direction of the speed reducer 53 to a right angle, and a cutting blade connected to the other end of the rotation direction changer 54 And a cutting blade column 55 that accommodates the shaft.

  The incision driving device 6 includes a swivel base 61 and an incision drive motor 63 having a reduction gear 62.

  The feed drive device 7 includes a feed motor 71, a speed reducer 72 that reduces the rotational speed of the motor 71, and a sprocket 73 that is attached to the output shaft of the speed reducer 72. The sprocket 73 is engaged with the chain 33 attached to the rail 3 so that the guide roller 42, that is, the moving portion 1 can be moved along the rail 3.

  In the present embodiment, an electric motor is used as a driving power source. However, not only electricity but also hydraulic pressure may be used. In this case, a known device for hydraulic operation is used.

  As shown in FIG. 6, the chain 33 is not endless but is discontinuous, and two end portions of the discontinuous portion are fixed on the rail floor 31 of the rail 3 by the fixtures 34.

  As shown in FIG. 3, the rail support 8 that supports the rail 3 is inserted into the fixing member 81 so as to be extendable and retractable from both ends of the elongated fixing member 81 having a circular cross section. A holding member 82 is provided.

  The length of the fixing member 81 must be changed depending on the width of the U-shaped groove 2 to be cut, but it is sufficient to prepare a plurality of sizes.

  A spiral hole 831 is formed at the end of the fixing member 81, and a fixing bolt 83 is screwed into the spiral hole 831 to press and fix the shaft rod 85 of the holding member 82 whose length of expansion and contraction is adjusted.

  The holding member 82 is a pressing member 84 that presses the inner wall of the U-shaped groove 2, a shaft rod 85 that is connected to the pressing member 84 and that can freely enter and leave the fixing member 82 that is configured by the pipe, and an end of the fixing member 82. It has a nut 86 for adjusting the length, which is rotatably provided in the part and screwed into the shaft rod 85.

  By rotating the nut 86 for adjusting the length, a force in the extending direction is applied to the shaft 85 of the holding member 82 to press the pressing member 84 against the inner wall of the U-shaped groove 3, and the rail support 8 is fixed. The height position of the moving part 1 is determined.

  The nut 86 may be fixed to the fixing member 81, and the shaft rod 85 may be rotatable with respect to the fixing member 81 by making the shaft rod 85 rotatable.

  As shown in FIGS. 4 and 5, a rectangular base plate 9 is fixed to the fixing member 81 of the rail support 8 via a fastening member 91. The fastening member 91 has a pair of semi-cylindrical clamp members 91a and 91b. The respective clamp members 91a and 91b are circular so that the inner side, that is, the inner surface grips the fixing member 81, and the outer side has a trapezoidal shape. ing. The inner sides of the clamp members 91 a and 91 b are formed according to the outer shape of the fixing member 81.

  The clamp members 91a and 91b divided into two hold and fix the fixing member 81 of the rail support 8 on their inner surfaces by fastening with the fastening members. That is, one end of each of the clamp members 91a and 91b is rotatably connected to each other by a pin 911. A fastening bolt 913 is pivotally supported by the pin 912 on the other end of the clamp member 91a, and the fastening bolt 913 is connected to the clamp member 91b. The clamp members 91a and 91b are gripped and fixed to the fixing member 81 of the rail support 8 by their inner surfaces by being inserted into an open groove (not shown) provided at the end and screwed into the nut 914. .

  A fixing bolt 92 protrudes outward from one clamp member 91a disposed on the upper side of the rail support 8.

  The base plate 9 is a rectangular plate-like body, and its long side is parallel to the extending direction or the axial direction of the fixing member 81, and both surfaces thereof are preferably smooth surfaces.

  Bolt insertion holes 921 through which the fixing bolts 92 penetrate are formed at both ends in the longitudinal direction of the base plate 9. The fixing bolts 922 protruding from the clamp member 91 a are inserted into the bolt insertion holes 921, and nuts 921 are inserted. As a result, the base plate 9 is fixed to the clamp member 91a, and as a result, is fixed to the fixing member 81 of the rail support 8.

  The rail 3 is placed on the upper surface of the base plate 9, and if necessary, both are fixed by a fixing means (not shown).

  In this embodiment, the rail support 8 is a pipe having a circular cross section. However, the present invention is not limited to this, and a rail whose cross section is deformed into a polygon such as a rectangle or a square may be used.

  The cutting blade 51 fixed to the cutting blade shaft connected to the other end of the rotation direction changer 54 of the cutting machine main body 5 is the cutting machine main body 5 side which is the cutting blade shaft side as shown in FIG. 7 is provided with a cylindrical boss or flange 57 fixed to the cutting blade 51 by screwing bolts into, for example, six screw holes provided around the hole 56 at the center thereof. As shown in (b), on the opposite rail 3 side, a hole 56 is provided at the center and screw holes are provided at six locations around it, but the surface of only the cutting blade 51 having no protruding portion appears.

  The operation of the U-shaped groove cutting rail positioning device A configured as described above will be described.

  The shaft rod 85 of the rail support 8 is extended to a set position inside the U-shaped groove 3 to be repaired, the pressing member 84 is brought into contact with the inner wall of the U-shaped groove, and then the holding member 82 and the fixing member 81 are fixed. Thus, the rail support 8 is prevented from moving.

  The rail support 8 is sandwiched and fixed by a fastening member 91 to which the base plate 9 is fixed in advance. The base plate 9 may be fixed to the fastening member 91 with bolts 92 and nuts 922 after the rail support 8 is clamped and fixed by the fastening member 91 as necessary.

  The rail 3 is placed on the upper surface of the base 9, and the moving part 1 is further installed on the rail 3 to perform a cutting operation. The cutting operation can be performed from the upper edge of the U-shaped groove 2 to the upper portion of the inner wall, that is, to the vicinity of the height of the holding member 82 on the inner wall. At that time, the left and right swing operation of the cutting drive device 6 in the cutting machine body 5 is performed according to the width of the U-shaped groove.

  When the width of the U-shaped groove is wide and the side walls of both the left and right U-shaped grooves 2 cannot be cut only by the left / right swing operation of the cutting drive device 6 in the cutting machine main body 5, the fixing member 81 of the rail support 8 is fixed. After the fastening member 91 is loosened and the fastening member 91 is slid on the fixing member 81 toward the side that cannot be cut, the fastening member 91 is fixed to the fixing member 81, so that only one cutting machine 5 is used. In addition, the cutting operation can be performed only by the movement of the rail 3 accompanying the left and right movement of the fastening member 91.

  The U-shaped groove 3 is not necessarily a straight line but may be bent or dead ends. In such a case, after cutting the side wall of the U-shaped groove 2 in the straight part, the rail 3 with the moving part 1 placed thereon is lifted from the base plate 9, the direction of the rail 3 is changed, and the base plate 9 is again formed. Place and fix and resume side wall cutting.

  That is, it is not necessary to consider the arrangement of cables, etc., compared to the conventional technology in which cables and hoses are arranged behind the cutting machine body 5 and cannot be cut at all due to the cutting. Can work on.

  Further, when the cutting operation starts or ends, or when the cutting blade 51 is damaged, the cutting blade 51 can be easily removed and replaced simply by releasing the screwing between the cutting blade shaft and the flange 57. .

  Furthermore, since there is no projection on the lower surface of the cutting blade 51, it is possible to cut a deep place up to a portion close to the bottom surface of the inner wall of the U-shaped groove 2.

The cross-sectional front view of the rail positioning device for U-shaped groove cutting devices in the embodiment of the present invention. The side view of the rail positioning device of FIG. The top view of a rail support body. The perspective view which shows the relationship between a fixing member, a fastening part, and a baseplate. The figure which shows the relationship between the fastening part which shows a fixing member in a cross section, and a base plate. The top view of the rail containing a chain. It is a figure which shows the surface of a cutting blade, (a) shows the surface, (b) shows a back surface.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Moving part 2 ... U-shaped groove 3 ... Rail 31 ... Rail flooring 32 ... Rail member 4 ... Mount 42 ... Guide roller 5 ... Cutting machine main body 6 ... Incision drive device 7 ... Feed drive device 8 ... Rail support member 81 ... Fixing member 82 ... Holding member 84 ... Pressing member 9 ... Base plate 91 ... Fastening Member 91a, 91b ... clamp member

Claims (2)

In a U-shaped groove cutting rail positioning device for positioning a moving rail of a cutting machine body that cuts a predetermined position of a U-shaped groove, a rail (3) installed in a U-shaped groove (2), the rail ( 3) a fixing device for positioning, a pedestal (4) provided on the rail (3) so as to be able to run, and a notch in an upper part of the U-shaped groove (2) installed on the pedestal (4). A cutting machine body (5) composed of a notch driving device (6) for performing and a feed driving device (7) for traveling along the rail (3), the fixing device being A rail support (8) having a fixing member (81) and a holding member (82) provided on both sides of the fixing member (81) so as to be extendable and contracted. A base plate (9) is fixed to the fixing member (81). The fastening member (91) is fixed, and the holding member (82) is inside the U-shaped groove (2). Is fastened to fix the rail support (81), the lower surface of the rail (3) is placed on the base plate (9), and the fastening member (91) is fixed to the base plate (9) The base plate is loosened by sliding the fastening member (91) in the left-right direction on the fixing member (81) of the rail support (8), and then fixing the fastening member (91) to the fixing member (81). (9) A rail positioning device for cutting a U-shaped groove, wherein the rail (3) placed thereon is movably installed in the U-shaped groove (2). In a U-shaped groove cutting rail positioning device for positioning a moving rail of a cutting machine body that cuts a predetermined position of a U-shaped groove, a rail (3) installed in a U-shaped groove (2), the rail ( 3) a fixing device for positioning, a pedestal (4) provided on the rail (3) so as to be able to run, and a notch in an upper part of the U-shaped groove (2) installed on the pedestal (4). A cutting machine body (5) composed of a notch driving device (6) for performing and a feed driving device (7) for traveling along the rail (3), the fixing device being A rail support (8) having a fixing member (81) and a holding member (82) provided on both sides of the fixing member (81) so as to be extendable and contracted. A base plate (9) is fixed to the fixing member (81). The fastening member (91) is fixed, and the holding member (82) is inside the U-shaped groove (2). Is pressed to fix the rail support (81), the lower surface of the rail (3) is mounted on the base plate (9), and is mounted on the base plate (9) via the fastening member (91). Removed the rail (3), changed the direction of the rail and placed it on the base plate (9) again, and changed the cutting direction of the inner side wall of the U-shaped groove (2) by the cutting blade (51) A cutting rail positioning device.

Images