JP2005119152A - Processing machine for chamfering curved-surface plate and a method for dropping edge of snowboard by the machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a processing machine for chamfering a curved-surface plate which is new in structure and cuts or polishes an edge part with an end part curved up in a prescribed curvature like a snowboard, a snow scoot, a skate board, a ski board, etc., and with a plane shape formed approximately circularly and a method for dropping the edge of a snowboard. <P>SOLUTION: In the processing machine 1 for chamfering the curved-surface plate, a processing plinth 12 for provisionally fixing the curved-surface plate B and an arm stand 13 for suspending a swing block 2 at a prescribed height position above the processing plinth are provided, and the upper end side of a tool fitting part 5 suspended by a vertical slide mechanism 4 is incorporated into the lower surface of the swing block through a horizontal slide mechanism 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

    The present invention relates to a processing technique that enables cutting or polishing while following the outer shape of a curved plate having a three-dimensional curved surface, and mainly includes end portions such as snowboards, snowscoots, skateboards, skis, and the like. Machine tools for cutting or polishing, centering on the field of woodworking technology that cuts or polishes the edge that has a curved shape with a predetermined curvature and a plane shape that is substantially arcuate. In other words, the field of development and manufacture of machine tools is solid, the various parts of these machine tools and the fields of various materials such as metal materials and plastics, and the electronic components incorporated in them. Products and control equipment that integrates them, various measuring instruments, power machines that drive processing machines, energy Test, display, sales, import / export, and use of these machine tools from all fields generally referred to as industrial machinery such as electricity and oil, which are the power and energy sources. There are no technical fields that are not related to the field of recovery, collection and transportation of cutting waste generated by the operation of the machine, the recycling field that efficiently recycles cutting waste, or a new field that cannot be envisaged at this time. It is.

(point of view)
Snowboards have effective edges formed on the left and right edges, excluding the nose and tail, and turn performance and operability are achieved by applying edge tune-up that adjusts the angle of the base edge on the sliding surface and the side edge on the side of the plate. It can be used for various purposes such as riding, air (jump), powder (deep snow) run, etc. When an amateur adds a hand to an edge, the edge itself is often finished like a wave or the angle of the edge is not constant, so it is common to request processing from a pro shop. It is.

    Also, unnecessary edges around the nose and tail other than the effective edge must be scraped off before use for the purpose of preventing danger, but unnecessary edges that are not directly used for sliding are scraped off. Although high accuracy is not required, it is difficult to obtain a uniform finish by hand work by amateurs, even if it is easy to notice on the appearance and even using a file that is a dedicated metal file, especially, The nose and tail must be warped so as not to stab the snow surface or slip even in deep snow, so that the nose kick and the tail kick are called up, and the edges should be evenly dropped along the curved shape. Not only will it be quite difficult to finish, but it will also take the hands of a professional professional to finish it beautifully It takes a great deal of effort.

(Conventional technology)
In order to finish the chamfering of the curved plate with good accuracy, a three-dimensional processing machine such as the “5-axis control NC router” device disclosed in Japanese Utility Model Laid-Open No. 1-114103 has been used so far. Although there was no use other than general snowboards that are commercially available, even if they are products of the same design manufactured from the same material and in the same process, the curvature of the molded finish differs individually, so each snowboard Unless the dimensional difference is adjusted by changing the control program every time, the chamfer dimensions are uneven, the appearance deteriorates, and a certain quality cannot be maintained, and the NC router itself is simply chamfered. It is a fairly expensive machine tool to use only for work, and it is economically expensive to install it independently at a sports equipment store or a snowboard shop It is, there is a problem that become a thing naturally processed price also of expensive.
(1) Japanese Utility Model Publication No. 1-141003

(Awareness of problems)
As described above, when chamfering an unnecessary edge of a snowboard nose or tail outer peripheral edge when an amateur uses a file, a grindstone, etc., unevenness occurs in the chamfer dimension and the appearance is deteriorated. In addition, even if you ask a professional such as a board shop, it will not require a very expensive processing fee because it requires advanced technology and a lot of time to ensure good quality This situation also occurs when processing using an automatic control machine such as an NC router, and in any case, processing is simple and economical with high accuracy. I can't do it, so I have to endure it for a long time by manual processing by amateurs, or just give priority to finishing and be prepared for an expert with an expensive processing cost Choice but to rely because there is no room for selection was the actual situation.

(Object of invention)
Therefore, in view of the above circumstances, the applicant and the inventor of the present invention realize a processing machine that enables chamfering processing like a professional to be easily performed even by an amateur who is not used to processing. Judging from the fact that it can not be done, we started its development and research very quickly, and as a result of repeating trial and error over many years and many trial manufactures and experiments, this time finally curved surface chamfering machine, The present invention has succeeded in realizing a new snowboard edge dropping method, and the configuration thereof will be described in detail below together with an embodiment representative of the present invention shown in the drawings.

(Structure of the invention)
As will be clearly understood from the embodiments representing the present invention shown in the drawings, the curved plate chamfering machine included in the present invention basically has the following configuration. That is, a curved base plate whose chamfering target portion is a three-dimensional curved arc shape is covered with the processing base that can be placed and temporarily fixed on the chamfering target portion, and the processing base at a predetermined height position above the processing base. The arm stand that supports and suspends the swing block in a horizontal position to be covered, and the upper end side of the curved plate that is temporarily fixed on the processing base is pivoted about the horizontal axis to which the approximate center position of the upper surface curvature radius belongs. A swing block that is suspended from an arm stand and that can swing in the front-rear direction with the pivoting portion as a rotation center, and the lower end surface of the swing block is suspended by a vertical slide mechanism. Curved plate chamfer with a configuration in which the upper end side of the tool mounting part that can be expanded and contracted is incorporated through a horizontal slide mechanism and can be slid in the left and right directions. It is a machine.

    A curved plate chamfering machine having this basic configuration, in other words, a processing base that allows a curved plate whose chamfering target portion is an arc shape of a three-dimensional curve to be placed and temporarily fixed on the chamfering target portion, and Approximate center position of the upper surface radius of curvature of the arm stand that supports and suspends the swing block in a horizontal posture covering the machining pedestal at a predetermined height position above the machining pedestal, and the curved plate temporarily fixed on the machining pedestal A swing block whose upper end is suspended from an arm stand by a pivoting portion having a horizontal axis to which the shaft belongs, and which can freely swing in the front-rear direction around the pivoting portion, The upper end side of the tool mounting portion that can be expanded and contracted in the hanging direction by the vertical slide mechanism is incorporated into the lower end surface of the swing block via the horizontal slide mechanism. Curved plate chamfering with a configuration that allows the movement of the chamfering tool attached to the tip of the tool mounting part to smoothly follow the chamfering target portion that is the arc shape of the three-dimensional curve of the curved plate. It can be called a machine.

    More specifically, a processing base that allows a curved plate whose chamfering target portion is a three-dimensional curved arc shape to be placed and temporarily fixed on the chamfering target portion is the same at a predetermined height position above the processing base. An arm stand that supports and suspends the swing block in a horizontal posture covering the processing base, and a pivoting portion having a horizontal axis to which the approximate center position of the upper surface curvature radius of the curved plate temporarily fixed on the processing base belongs. And a swing block that freely swings in the front-rear direction with the pivoting portion as a center of rotation. A vertical slide mechanism is provided on the lower end surface of the swing block. The upper end of the tool mounting part, which can be expanded and contracted in the hanging direction, is incorporated via a horizontal slide mechanism so that it can slide in the left and right direction. The chamfered blade attached to the tip of the head is provided with a concentric side surface contact piece, and the side surface contact surface is brought into contact with and moved along the peripheral edge of the curved plate, so that the trajectory of the chamfered blade is three-dimensional. A curved plate chamfering machine that can smoothly follow a chamfering target portion having a curved arc shape.

    Similarly, a processing base that allows a curved plate whose chamfering target portion is a three-dimensional curved arc to be placed and temporarily fixed on the chamfering target portion and the same processing at a predetermined height position above the processing base. By an arm stand that supports and suspends the swing block in a horizontal posture covering the pedestal, and a pivoting portion that is centered on the horizontal axis to which the approximate center position of the upper surface curvature radius of the curved plate temporarily fixed on the processing pedestal belongs The upper end side of the swing block is suspended by an arm stand and has a swing block that freely swings in the front-rear direction around the pivoting portion. The upper end of the tool mounting part, which can be expanded and contracted in the hanging direction, is incorporated via a horizontal sliding mechanism so that it can be slid in the left and right direction, and temporarily fixed on the processing base. The base end of the upper surface scanning arm placed at the approximate center of the upper surface curvature radius of the curved plate is slidably attached to a fixed part such as an arm stand or processing base, and the tip of the upper surface scanning arm is approximately horizontal. It extends in the direction and toward the chamfering tool attached to the tip of the tool mounting part, and is pivotally connected to a rotating ring that can rotate concentrically with the axis of the chamfering tool. Since the upper surface copying contact piece that vertically contacts the upper surface protrudes downward, the upper surface copying contact piece contacts and moves the upper surface of the curved plate, and the trajectory of the chamfering blade is changed to a circle of the three-dimensional curve of the curved plate. It can also be said that it is a curved plate chamfering machine configured to be able to smoothly follow an arc-shaped chamfer target portion.

    More specifically, a processing base that enables a curved plate whose chamfering target portion is a three-dimensional curved arc shape to be placed and temporarily fixed on the chamfering target portion, and a predetermined height position above the processing base. In this case, the horizontal axis to which the approximate center position of the upper surface radius of curvature of the arm stand that supports and suspends the swing block in a horizontal posture covering the processing base and the curved plate temporarily fixed on the processing base belongs is pivoted. The swing block has a swing block whose upper end is suspended from an arm stand and allows swinging in the front-rear direction with the pivot mount as a rotation center. The upper end side of the tool mounting part, which can be expanded and contracted in the hanging direction by the slide mechanism, is incorporated through the horizontal slide mechanism so that it can be slid in the left-right direction. The chamfering blade attached to the tip of the tool mounting part is provided with a concentric side surface contact piece, and the base end of the top surface scanning arm arranged at the approximate center of the upper surface curvature radius of the curved plate temporarily fixed on the processing base is armed. It is attached to a fixed part such as a stand or a machining base so that it can swing freely, and the tip of the upper surface copying arm extends toward the chamfering blade attached to the tip of the tool mounting portion in a substantially horizontal direction. It is connected to a rotating ring that can rotate concentrically with the shaft center, and from the vicinity of the tip, a top surface contact piece that abuts perpendicularly to the upper surface of the curved plate protrudes downward, so that side surface contact The piece abuts along the peripheral edge of the curved plate, the upper surface copying contact piece abuts on the upper surface of the curved plate, and the locus of the chamfering cutter smoothly follows the chamfering target portion that is the arc shape of the three-dimensional curve of the curved plate. A song with a composition It can be a plate chamfering machine.

(Related invention)
In relation to the curved plate chamfering machine described above, the present invention also includes a snowboard edge dropping method using the curved plate chamfering machine, and the configuration is basically as follows. In other words, the snowboard nose or tail, which is a curved board with the deck surface facing upward, is temporarily fixed on the processing base, and the chamfering blade is rotated and activated while being separated from the edge of the snowboard, and the tool mounting part is slid horizontally. While moving horizontally along the mechanism, the chamfering blade is brought into contact with the peripheral edge of either the left or right edge of the snowboard nose or tail, and the tool mounting part is moved vertically along the vertical slide mechanism. While moving, cut the chamfering blade into the edge of the snowboard, swing the swing block, and at the same time slide the horizontal sliding mechanism and the vertical sliding mechanism while moving the chamfering blade to the left or right side along the unnecessary edge. Smooth movement to the edge of the other edge ensures no snowboard nose or tail failure. A snowboard edge drop method according to the curved plate chamfering machine according to the any one where the structure to allow a homogeneous chamfer over substantially the entire length of the edge.

    To show this in a more specific configuration, the nose or tail of the snowboard, which is a curved plate with the deck surface facing upward, is temporarily fixed on the processing base, and the chamfering blade is rotated while being separated from the edge of the snowboard. The tool mounting part is moved along the vertical slide mechanism in the vertical direction, and the upper surface scanning contact piece is brought into contact with the snowboard deck surface, and the tool mounting part is moved horizontally along the horizontal slide mechanism. While moving, the side copying contact piece is moved to contact the edge of either the left or right edge of the snowboard nose or tail to cut the chamfering blade into the edge of the snowboard, and the side copying contact piece and the top copying contact piece Swing the swing block to maintain the contact state with the snowboard at the same time as the horizontal slide machine And the vertical slide mechanism to move the chamfered blade smoothly along the unnecessary edge to the left or right edge of the opposite side, over the entire length of the unwanted edge of the snowboard nose or tail. It can be said that this is a snowboard edge dropping method using the curved plate chamfering machine according to any one of the above, which is configured to enable uniform chamfering.

    As described above, according to the curved plate chamfering machine of the present invention, first of all, on the chamfered portion of the curved plate peripheral edge formed in the three-dimensional curved surface formed in the upper surface arc shape and the side surface arc shape. The chamfering tool can be accurately copied and moved along the chamfering tool so that the chamfering process can be performed in a uniform band shape with suitable accuracy, and the finished appearance is excellent. Unless a separate control program is set for each face plate, chamfering of the same degree cannot be performed, and even a skilled professional engineer can perform uniform and good chamfering by hand. However, it is possible to solve these difficult problems at once and to move the chamfering blade along the shape of the curved plate. It can easily handle plates, enables rapid processing, requires almost no skill, and is capable of high-quality chamfering, even for inexperienced beginners, working significantly more than before. An excellent feature is that the efficiency can be increased.

    In addition, according to the snowboard edge dropping method included in the present invention, until now, in precision machining using an NC router, there is an error in the curvature of the nose and tail depending on the product. It is necessary to make corrections to the control program every time processing is performed, and it requires relatively high processing costs regardless of simple chamfering processing. Even when chamfering is performed, high technology and a lot of processing time are required, so it was still necessary to charge a relatively high processing fee. The edge of the snowboard nose and tail can be chamfered with suitable accuracy to obtain a good appearance. And to simplify the machining of the work, it is possible to exert Xiu the effect that it is possible to be provided at significantly lower cost compared to previously.

    In implementing the present invention having the above-described configuration, the best or desirable mode will be described. First, the processing pedestal makes it possible to securely fix the chamfered portion of the curved plate reliably and supports it against the cutting force of the moving chamfering blade, and damages the curved plate itself during temporary fixing. It must be structured so that it retains at least the periphery of the lower surface of the curved plate, and the upper surface of the pedestal substantially matches the lower surface of the curved plate. Do not scratch the curved plate by using a vise that is formed in a curved shape and sandwiches and fixes a protective sheet or protective film, a vacuum suction structure using a suction cup or vacuum pump, or an adhesive that does not stick It should have a structure that can be firmly and temporarily fixed. When curved plates with different curvatures must be processed one after another, a block that can be easily processed like a block made of foamed resin. It is possible to use individual processing pedestals that are made of materials and have the upper surface of the pedestal processed to have a curvature corresponding to each curved plate. It is also possible to arrange the pedestal members so that the upper end height of each pedestal member is appropriately adjusted according to the curved surface shape of each curved plate and can be temporarily fixed.

    The arm stand can be suspended so as to straddle the swing block over the curved plate temporarily fixed on the processing base, and the axis of the swing block on the horizontal axis of the swinging back and forth may be inadvertently shifted or swayed. It has the function to keep the relative distance between the curved plate and the swing block constant, and has sufficient strength to support suspension even when the swing block is swung. It should be formed integrally with the processing pedestal, and is preferably formed from a pair of arms erected on the left and right sides of the processing pedestal.

    The horizontal shaft functions to allow the pivot block of the swing block to be pivotably mounted on the arm stand, and the shaft that penetrates the swing block in the horizontal direction is fitted between the arm stand bearings. Alternatively, a structure in which a pair of convex shafts projecting concentrically on the left and right of the swing block is pivotally mounted between the bearings of the arm stand, or concentric bearing holes are drilled on the left and right of the swing block. It is also possible to attach a convex shaft formed on the arm stand to a structure that can be pivotally supported, and the swing block can be swung about the horizontal axis with respect to the arm stand. Any structure that can be supported is acceptable.

    The swing block has a function to suspend and hold a horizontal slide mechanism, a vertical slide mechanism, a tool mounting portion and the like so as to be swingable in the front-rear direction perpendicular to the axis of the horizontal axis with respect to the arm stand. The structure and strength must be such that the angle formed between the rotation center of the chamfered blade attached to the tool mounting portion and the pivot axis of the swing block on the arm stand can be maintained at an accurate right angle. Instead, it should be set to a size and shape that can stably support the horizontal slide mechanism.

    The horizontal slide mechanism supports the tool mounting part at the lower end of the swing block so as to be movable in a direction substantially perpendicular to the swing direction of the swing block, and the width direction of the chamfered portion of the curved plate temporarily fixed on the processing base A slide mechanism that has a sliding mechanism that is slidably suspended, has little sliding backlash and is excellent in rigidity, and is provided with a horizontal slide rail fixedly provided at the lower end of the swing block; Although it is desirable to comprise a horizontal slider that is slidably mounted along the horizontal slide rail, it is also possible to employ a structure that can be expanded and contracted in the horizontal direction using a link mechanism.

    The vertical slide mechanism has a function of suspending the tool mounting portion on the moving side portion of the horizontal slide mechanism such as a horizontal slider and connecting the tool mounting portion slidably up and down in the direction of the swing block suspension. It must be structured to allow sliding movement in a range slightly larger than the warped up dimension of the curved plate, and the upper end of the vertical slide rail is coupled to the moving part of the horizontal slide mechanism, It is desirable to install a vertical slider that can slide up and down along the vertical slide rail, and to attach the tool mounting part to the vertical slider in a fixed manner. However, as with the horizontal slide mechanism, a link mechanism is used. It is also possible to adopt a structure that can be expanded and contracted in the vertical direction.

    The tool mounting part can be cut into a chamfering target portion of a curved plate by mounting a chamfering tool, and supports a rotary chamfering tool so as to be rotationally driven, or a file that does not require a driving part. In the case of a tool that can be mounted with a grindstone itself and is equipped with a rotary chamfering tool, it can be rotated by a driving force transmission mechanism or electric motor using a belt, wire, compressed air, etc. that can drive the chamfering tool. It is possible to provide a drive source, etc., and it is desirable to provide a mounting chuck that can mount a chamfered blade, and to mount a file or grindstone that does not require a drive unit. If this happens, attach a blade that can be chamfered uniformly, without being affected by changes in the contact posture with the curved plate, such as a cylinder, cone, or sphere. Or, in response to a change in the angle in contact with the curved plate, it is good for those provided with a support mechanism to enable proper automatic change the posture of the tool.

    The chamfering blade has a function that enables a desired chamfering process by contacting along the chamfered portion of the curved plate, and a cutting mechanism or a polishing function according to the material and shape of the chamfered portion of the curved plate. It is desirable to adopt a structure that can be chamfered by abutting the peripheral edge of the curved plate by providing a side-faced contact piece that is concentrically arranged on the tip side as necessary. More specifically, it is a blade shape that can machine only either the nose of the snowboard, which is a curved board temporarily fixed on the machining base, the upper edge of the tail periphery, or the lower edge. In addition, it is possible to process both the upper and lower edges of the snowboard nose or tail rim, which is a curved plate temporarily fixed on the processing base. It can be provided with a pair of upper and lower edge geometry.

    When the chamfering blade is cut into the curved plate, the side surface copying contact piece abuts the periphery of the portion to be chamfered to prevent the chamfering blade from being cut into the curved plate more than necessary, and along the periphery of the curved plate. It performs a function that enables uniform chamfering, and is formed from rotating parts such as bearings that are rotatably mounted on the spindle of the chamfering tool, and does not increase friction even when it comes into contact with a curved plate. It is desirable that the chamfered blade has a structure that can be smoothly guided, and that the outer peripheral surface that contacts the peripheral edge of the curved plate is finished to be a smooth surface and can be rolled or slid.

    The top surface contact piece performs the function of contacting the top surface of the curved plate and preventing the chamfering blade from cutting more than necessary, enabling a more uniform chamfering process. A caster that has a predetermined height and touches the upper surface of the curved plate so as to be able to regulate the vertical cutting amount of the chamfered blade and can smoothly roll on the contact portion with the curved plate. Tensile springs that can hold the weight of the tool mounting part by suspending on the moving part of the horizontal slider, etc. It is desirable to provide a structure that does not cause load concentration due to the weight of the tool mounting portion or the like at one point of the curved plate by providing a telescopic suspension such as tensile rubber.

    The upper surface copying arm is always arranged on the inner side where the upper surface copying contact piece is closer to the center of the upper surface arc shape than the chamfering blade during chamfering by connecting the upper surface copying contact piece near the center of the upper surface arc shape of the curved plate. It is desirable to have a structure that can be expanded and contracted to such an extent that it can be finely adjusted according to the difference in the shape of each curved plate, and the chamfered blade is directed toward the center of the upper surface arc shape on the periphery of the curved plate. It can also have an elastic pulling mechanism that pulls automatically.

The rotating ring connects the upper end of the upper surface copying contact piece to the vicinity of the tip of the upper surface copying arm, and always equidistants the upper surface copying contact piece and the vicinity of the upper surface copying arm between the tool mounting portion or the axis of the chamfering blade. The chamfering blade must be arranged, shaped, and dimensioned so as not to contact the curved plate. It should be possible to ensure a stationary state without being influenced by the bearing, and the top surface contact piece should be attached via a bearing structure that can follow the guidance by the top surface arm, and should be made as light as possible. Is desirable.
The curved plate is a curved plate having an upper surface shape and a vertical cross-sectional shape that are curved with respective curvatures, and the outer peripheral edge of the curved plate is a chamfered portion. More specifically, the nose and the tail portion. Are snowboards and rollerboards having a chamfering target portion, and articles having a chamfering target portion similar to them.

    In addition, the snowboard edge dropping method of the present invention is a method in which the side surface contact piece is moved while moving the tool mounting portion, which is rotated and activated by the chamfering blade while being separated from the edge of the snowboard, in the horizontal direction along the horizontal slide mechanism. Is moved so that it touches either the left or right edge of the nose or tail edge of the snowboard, and at the same time, the tool mounting part is moved in the vertical direction along the vertical slide mechanism, and the upper surface copying contact piece At the same time as the snowboard deck surface is cut, the chamfering blade is cut into the edge of the snowboard, and the swing block is swung so as to maintain the contact state of the side surface contact piece and the top surface contact piece to the snowboard, Slide the horizontal slide mechanism and the vertical slide mechanism to make the chamfered blade an unnecessary edge. By smoothly move I, it can be configured to allow a homogeneous chamfer over substantially the entire length of the unnecessary edge snowboard nose or tail.

    Furthermore, the tool mounting part is not provided with any rotational driving force or driving force transmission mechanism, and the chamfering blade mounted on the tool mounting part can be a cylindrical, conical, or spherical type that can respond to changes in the posture of the tool mounting part. For example, a chamfering blade can be rotated or swingably mounted on the tool mounting part so that it can respond to changes in the posture of the tool mounting part. It is also possible to adopt a configuration in which chamfering is performed according to any one of the above-described procedures as a chamfering process by cutting into the edge of the snowboard with reciprocating sliding movement. In the following, the structure of the present invention will be described in detail together with an embodiment representative of the present invention shown in the drawings.

    1 is a perspective view of the curved plate chamfering machine, FIG. 2 is a side view of the curved plate chamfering machine, FIG. 3 is a plan view of the snowboard, FIG. 4 is a side view of the positional relationship of the snowboard with respect to the horizontal axis, and FIG. The example shown in the perspective view of the start state of machining, the perspective view of the progress state of the chamfering process of FIG. 6, and the perspective view of the final stage of the chamfering process of FIG. Supporting and hanging the swing block 2 in a horizontal position covering the processing base 12 at a predetermined height position above the processing base 12 and allowing the processing base 12 to be placed and temporarily fixed on the chamfering target portion B. The upper ends of the arm stands 13 and 13 and the upper end of the curved plate B temporarily fixed on the processing base 12 are pivoted by a pivoting portion 21 having a horizontal axis 14 as a center to which the substantially center position of the upper surface curvature radius belongs. And a swing block 2 that is swingable in the front-rear direction with the pivoting portion 21 as a center of rotation. A vertical slide is provided on the lower end surface of the swing block 2. From the basic structure in which the upper end side of the tool mounting portion 5 that can be expanded and contracted in the suspending direction by the mechanism 4 is incorporated through the horizontal slide mechanism 3 and can be slid in the left-right direction. A typical embodiment of the curved plate chamfering machine 1 included in the present invention is shown.

    The curved plate chamfering machine 1 is entirely provided on a base plate 11 having a rectangular plate shape, and a chamfering object of a snowboard B as a curved plate (curved plate) is provided at the approximate center of the base substrate 11. The nose N or tail T (hereinafter referred to as nose N) portion of the portion is formed in a shape that can stably support the sole (sliding surface) S side at a predetermined height position, The processing base 12 having a fixed structure is fixed, and the snowboard nose N placed on and temporarily fixed on the processing base 12 is vertically above the center of the planar arc shape of the nose N, respectively. Arm stands 13 and 13 are installed and fixed at the height corresponding to the center of the arc shape of the nose N at the height of the snowboard B. And The range corresponding to the nose N of each of the left and right arm stands 13 and 13 and the vicinity of the lower base end are formed in a recessed shape that retreats backward so that the tool mounting portion 5 can be moved. .

    The horizontal shaft 14 has a pivoting portion 21 comprising a through hole with a high precision finish formed at the upper end of the swing block 2 whose side cross-sectional shape is formed in an inverted T shape, or a bearing hole (not shown) equipped with a bearing. The swing block 2 is suspended between the upper ends of the arm stands 13 and 13 so as to be swingable in the sliding direction of the snowboard B on the processing base 12, and on the lower surface of the swing block 3, A horizontal slide rail 31 fixed in a direction perpendicular to the sliding direction of the snowboard B on the processing base 12 and mounted so as to be slidable in a direction perpendicular to the sliding direction of the snowboard B. The horizontal slide mechanism 3 comprising the horizontal slider 32 is fixed, and the horizontal slider 32 has a nose of the snowboard B at the center in the sliding (left and right) direction. A pair of vertical sliders 42, 42 provided integrally with the left and right side wall surfaces of the tool mounting portion 5 are provided on the lower surface of the center of the left and right sides, respectively. The upper ends of a pair of vertical slide rails 41 and 41 that are slidably supported in the vertical direction are coupled, and the vertical slide mechanism 4 formed by the vertical slide rails 41 and 41 and the vertical sliders 42 and 42 is a horizontal slide mechanism. The chamfering blade 51 mounted on the lower end of the tool mounting portion 5 is mounted in a state in which the tool mounting portion 5 is slidably stretchable in the vertical direction in the vicinity of the lower surface of the center of the horizontal slider 32 of FIG. The snowboard nose N on the processing base 12 can reach the outer peripheral edge of the snowboard nose N and can be retracted from the outer peripheral edge of the nose N to a sufficiently high position.

    The tool mounting portion 5 incorporates an electric motor (not shown) for rotational driving therein, and a rotating shaft (not shown) that is perpendicular to the sliding direction of the horizontal slide mechanism 3 and parallel to the hanging direction of the swing block 2 at the center of the lower end. A rotating ring 72 (described later) is rotatably mounted in the middle of the rotating shaft, and a tool for attaching a chamfering blade 51 to the lower end of the rotating shaft so that the chamfered blade 51 can be exchanged. A chuck 52 is formed. A chamfering blade 51 or a chamfering grindstone is integrally provided in the middle of the chamfering blade 51 to be mounted on the chuck 52, and a side surface contact piece 6 made of a small bearing is concentrically and rotatably mounted at the lower end. It has become.

    Further, a lower end of a tension spring (not shown) having an upper end connected to an appropriate position of the horizontal slider 32 is connected to an appropriate position of the tool mounting portion 5, and the tool mounting portion 5 is suspended so as to float slightly. The tool mounting portion is provided with a retraction lock mechanism (not shown) that can temporarily secure the retraction state by temporarily fixing the tool mounting portion 5 at a position far from the left or right side from the snowboard nose N on the processing base 12. 5 can be provided with a handle for moving operation and a gripping portion at appropriate positions on the outer periphery.

    Further, a bridge 15 is bridged between the left and right arm stands 13 and 13 at a height position below the horizontal axis 14 and above the snowboard B temporarily fixed on the processing base 12. The connecting portion 16 protrudes from the center of the flat arc shape of the snowboard nose N at the center of the left and right sides, and the tip of the connecting portion 16 and the vicinity of the periphery of the rotating ring 72 The rotating ring is connected to an appropriate place so that a slight tensile force is generated toward the center of the nose N-plane arc by an upper surface scanning arm 71 incorporating a tension expansion / contraction mechanism made of a tension spring that is elastically expandable / contractible in the axial direction. From the vicinity of the location where the upper surface copying arm 71 of 72 is connected, it is parallel to the hanging direction of the swing block 2 and the chamfered blade 51 is formed on the outer peripheral edge of the snowboard nose N. A caster-type rolling contact portion made of a spherical roller at the lower end, which is set to a length dimension that comes into contact with the deck surface D, which is the upper surface of the snowboard nose N, when the snowboard nose N is moved and arranged The upper surface copying contact piece 7 provided with a projection is provided.

(Operation of Example)
The work process of the snowboard edge dropping method performed using the curved plate chamfering machine of the present invention having the above-described configuration is performed in the following procedure. First, the rear side of the upper surface of the processing base 12 is molded in advance into a shape corresponding to the sole (sliding surface) S of the effective edge range E of the snowboard B, which is a curved plate, as shown in FIG. It is molded so as to correspond to the sole S of T (hereinafter referred to as nose N), and the center of the planar arc shape of the nose N is disposed at a position that is vertically below the horizontal axis 14 and vertically below, and the horizontal axis 14 is set to a shape that can be supported so as to coincide with the center of the arc of the vertical section formed by the deck (surface) D of the nose N, and the snowboard B is adsorbed on the upper surface of the processing base 12 and is shown in FIG. And fix it firmly.

    The tool mounting unit 5 turns on the power in a state of being temporarily fixed at a position far from the snowboard B temporarily fixed on the processing base 12 by a retraction lock mechanism (not shown), and drives the electric motor. Then, the chamfering blade 51 is driven to rotate, and after confirming that the rotation of the chamfering blade 51 is stabilized, the retraction lock mechanism is released by grasping the appropriate position of the tool mounting portion 5, and the horizontal slide mechanism 3 in FIG. Further, while sliding the vertical slide mechanism 4 and swinging the swing block 2 as necessary, the chamfering blade 51 is brought close to the left edge of the nose N, and the lower end of the upper surface copying contact piece 7 is set to the nose N deck. After moving so as to contact the surface D and making the height of the chamfering cutter 51 coincide with the outer peripheral edge of the nose N, as shown in FIG. The chamfering blade 51 is cut into an unnecessary edge at the left peripheral edge of the nose N by sliding the idler 32, and at the same time, the side surface contact contact piece 6 is brought into contact with the left peripheral edge of the nose N to maintain the cutting amount. The side surface contact piece 6 is rolled and moved so as to follow the periphery of the nose N, and the unnecessary edge F, which is a three-dimensional curve, is uniformly chamfered as shown in FIG.

    The side surface scanning contact piece 6 contacts and rolls along the unnecessary edge F shown by a thick solid line in FIG. The provided upper surface copying contact piece 7 is attracted to a position closer to the center of the planar arc shape of the unnecessary edge F, and the upper surface copying contact piece 7 always moves inward of the chamfering blade 51 while the nose N deck surface. It becomes a thing which rolls and moves by grounding on D, and keeps the height of the chamfering blade 51 constant, and it can finish a uniform belt-like chamfered surface without unevenness along the unnecessary edge F which is a three-dimensional curve. It becomes possible.

    After drawing the three-dimensional curve in this way, the tool mounting portion 5 moved from the left end to the right end of the unnecessary edge F is chamfered again from the right end along the left end after finishing the chamfering process. The chamfered portion is finished by moving it in the opposite direction while processing, or the chamfering blade 51 is pulled away from the unnecessary edge F and detoured outside so as not to contact the nose N, or moved over the top and left A retraction lock mechanism (not shown) set on the outer side is temporarily fixed, the power supply is stopped, the electric motor stops rotating, the chamfering blade 51 is stopped, and then the suction of the machining base 12 is released to snowboard. B is removed and the chamfering process is finished, or the processing base 1 is inverted to the tail T side and molded into an upper surface shape that matches the shape of the sole surface S of the tail T. Using temporarily fix, it is possible this to perform the same chamfering as described above.

    The retract lock mechanism of the tool mounting portion 5 can be set at any location, and the chamfering blade 51 may be set at a location where the chamfering blade 51 can be prevented from inadvertently contacting the snowboard B. In addition to chamfering only the upper edge of the unnecessary edge F or chamfering the upper and lower edges at the same time, it is also possible to chamfer only the lower edge.

(Effect of Example)
In particular, the curved plate chamfering machine 1 described in the embodiment is arranged so as to straddle the processing base 12 in addition to the excellent features of the curved plate chamfering machine of the present invention and the snowboard edge dropping method thereby. The swing block 2 is suspended between the provided arm stands 13 and 13, and the tool mounting portion 5 is mounted on the lower surface of the swing block 2 via the horizontal slide mechanism 3 and the vertical slide mechanism 4. The chamfering blade 51 can be smoothly moved along the unnecessary edge F of the nose N or tail T of the snowboard B temporarily fixed thereon, and the side surface contact piece 6 provided concentrically on the chamfering blade 51 is provided. The chamfering blade 51 is positioned on the side surface of the unnecessary edge F by being in contact with the unnecessary edge F of the nose N so as to roll freely, and excessive cutting in the horizontal direction is performed. This eliminates the shortage of cuts and cuts and realizes a smooth and uniform curve processing. Further, the upper surface copying contact piece 7 contacts the deck surface D of the nose N and becomes orthogonal to the nose N surface of the chamfering blade 51. The effect is that the amount of cut in the vertical direction can be made constant, and the chamfering process over the entire length of the unnecessary edge F can be formed in a stable width dimension.

(Conclusion)
As described above, the curved plate chamfering machine of the present invention, and the snowboard edge dropping method using the curved plate chamfering machine according to the present invention can achieve the intended purpose evenly by the novel configuration. Since the structure is relatively simple and easy to manufacture, it can be offered at a much lower price than NC routers and other precision processing machines, making it much more economical and chamfering. Since the work efficiency of the process itself can be greatly increased, it is possible to surely achieve a reduction in costs and man-hours, and there is a need for a chamfering process that is quick, inexpensive, and has a beautiful finish. Not only from the sporting goods industry that chamfers snowboards that are used, but also from other crafts industries that require the processing of curved plates. , Use over a wide range, is expected to be things continue to spread.

The drawings show a typical embodiment that embodies the technical idea of the curved plate chamfering machine and the snowboard edge dropping method according to the present invention.
It is a perspective view which shows a curved plate chamfering machine. It is a side view which shows a curved plate chamfering machine. It is a top view which shows the unnecessary edge range of a snowboard. It is a side view which shows the positional relationship of a snowboard and a horizontal axis. It is a perspective view which shows the start state of a chamfering process. It is a perspective view which shows the progress state of a chamfering process. It is a perspective view which shows the last stage of a chamfering process.

Explanation of symbols

1 Curved plate chamfering machine
11 Same base platform
12 Same processing base
13 Same arm stand
14 Same horizontal axis
15 Bridge
16 Same connection part 2 Swing block
21 Pivoting part 3 Horizontal slide mechanism
31 Same horizontal slide rail
32 Same horizontal slider 4 Vertical slide mechanism
41 Same vertical slide rail
42 Same vertical slider 5 Tool mounting part
51 Chamfering cutter 6 Side surface contact piece 7 Top surface contact piece
71 Same-surface scanning arm
72 Same rotating ring B Snowboard (curved plate, curved plate)
N Nose (Chamfered part)
T Tail (Chamfered part)
D Same deck (front)
S Same sole (sliding surface)
E Same effective edge range
F Unnecessary edge

Claims (11)

    A processing pedestal that allows a curved plate whose chamfering target portion is a circular arc of a three-dimensional curve to be placed and temporarily fixed on the chamfering target portion, and a horizontal covering the processing pedestal at a predetermined height position above the processing pedestal. An arm stand that supports and suspends the swing block in a vertical posture, and an arm stand whose upper end is pivoted around a horizontal axis to which the approximate center position of the upper surface radius of curvature of the curved plate temporarily fixed on the processing base belongs And a swing block that freely swings in the front-rear direction with the pivoting portion as a rotation center, and a vertical slide mechanism is provided on the lower end surface of the swing block in the suspension direction. Curved plate chamfering process, characterized in that the upper end side of the tool mounting part that can be expanded and contracted is incorporated via a horizontal slide mechanism so that it can slide in the left and right directions. .     A processing pedestal that allows a curved plate whose chamfering target portion is a circular arc of a three-dimensional curve to be placed and temporarily fixed on the chamfering target portion, and a horizontal covering the processing pedestal at a predetermined height position above the processing pedestal. An arm stand that supports and suspends the swing block in a vertical posture, and an arm stand whose upper end is pivoted around a horizontal axis to which the approximate center position of the upper surface radius of curvature of the curved plate temporarily fixed on the processing base belongs And a swing block that freely swings in the front-rear direction with the pivoting portion as a rotation center, and a vertical slide mechanism is provided on the lower end surface of the swing block in the suspension direction. It is assumed that the upper end of the tool mounting part that can be expanded and contracted is incorporated via a horizontal slide mechanism so that it can be slid in the left-right direction. Curved plate chamfering machine, characterized in smooth it has adapted to follow the chamfered target portion is an arc-shaped three-dimensional curves of the trajectory of the chamfering cutter curved plate was.     A processing pedestal that allows a curved plate whose chamfering target portion is a circular arc of a three-dimensional curve to be placed and temporarily fixed on the chamfering target portion, and a horizontal covering the processing pedestal at a predetermined height position above the processing pedestal. An arm stand that supports and suspends the swing block in a vertical posture, and an arm stand whose upper end is pivoted around a horizontal axis to which the approximate center position of the upper surface radius of curvature of the curved plate temporarily fixed on the processing base belongs And a swing block that freely swings in the front-rear direction with the pivoting portion as a rotation center, and a vertical slide mechanism is provided on the lower end surface of the swing block in the suspension direction. It is assumed that the upper end of the tool mounting part that can be expanded and contracted is incorporated via a horizontal slide mechanism so that it can be slid in the left-right direction. The chamfered blade is provided with a concentric side surface contact piece, and the locus of the chamfer blade is moved along the peripheral edge of the curved plate so that the trajectory of the chamfered blade is an arc of a three-dimensional curve of the curved plate. A curved plate chamfering machine characterized by being able to smoothly follow a chamfering target portion.     A processing pedestal that allows a curved plate whose chamfering target portion is a circular arc of a three-dimensional curve to be placed and temporarily fixed on the chamfering target portion, and a horizontal covering the processing pedestal at a predetermined height position above the processing pedestal. An arm stand that supports and suspends the swing block in a vertical posture, and an arm stand whose upper end is pivoted around a horizontal axis to which the approximate center position of the upper surface radius of curvature of the curved plate temporarily fixed on the processing base belongs And a swing block that freely swings in the front-rear direction with the pivoting portion as a rotation center, and a vertical slide mechanism is provided on the lower end surface of the swing block in the suspension direction. On the curved plate that is temporarily fixed on the processing pedestal so that the upper end of the tool mounting part that can be expanded and contracted is incorporated via a horizontal slide mechanism and can be slid in the left-right direction. The base end of the upper surface scanning arm, which is arranged at the approximate center of the radius of curvature, is slidably attached to a fixed part such as an arm stand or a processing base, and the tip of the upper surface scanning arm is in a substantially horizontal direction with a tool Extends toward the chamfering tool attached to the tip of the mounting part, and is pivotably connected to a rotating ring that can be rotated concentrically with the axis of the chamfering tool. By chamfering the upper surface copying contact piece that contacts the upper surface, the upper surface copying contact piece is brought into contact with and moved to the upper surface of the curved plate, and the locus of the chamfering blade is a chamfering object that is an arc of a three-dimensional curve of the curved plate. A curved plate chamfering machine characterized by being able to follow a part smoothly.     A processing pedestal that allows a curved plate whose chamfering target portion is a circular arc of a three-dimensional curve to be placed and temporarily fixed on the chamfering target portion, and a horizontal covering the processing pedestal at a predetermined height position above the processing pedestal. An arm stand that supports and suspends the swing block in a vertical posture, and an arm stand whose upper end is pivoted around a horizontal axis to which the approximate center position of the upper surface radius of curvature of the curved plate temporarily fixed on the processing base belongs And a swing block that freely swings in the front-rear direction with the pivoting portion as a rotation center, and a vertical slide mechanism is provided on the lower end surface of the swing block in the suspension direction. It is assumed that the upper end of the tool mounting part that can be expanded and contracted is incorporated via a horizontal slide mechanism so that it can be slid in the left-right direction. The chamfered blade is provided with a concentric side surface contact piece, and the base end of the upper surface scanning arm arranged at the approximate center of the upper surface curvature radius of the curved plate temporarily fixed on the processing base is used as an arm stand or a processing base. It is attached to the fixed part so as to be able to swing, and the tip of the upper surface copying arm extends toward the chamfering tool attached to the tip of the tool mounting part in a substantially horizontal direction and is concentric with the axis of the chamfering tool. From the vicinity of the tip, the upper surface scanning contact piece that vertically contacts the curved plate upper surface is projected downward, so that the side surface scanning contact piece becomes the peripheral edge of the curved plate. The upper surface copying contact piece is in contact with the upper surface of the curved plate so that the trajectory of the chamfering blade can smoothly follow the chamfering target portion that is the arc shape of the three-dimensional curve of the curved plate. Characteristic curved plate chamfering .     The upper surface copying arm can smoothly change the distance between the base end swingably attached to the fixed part such as the arm stand or the processing base and the tip end swingably connected to the rotating ring. The curved plate chamfering machine according to any one of claims 4 and 5, comprising a telescopic mechanism.     The upper surface copying arm has a tension rubber, a tension spring, and the like between a base end that is swingably attached to a fixed part such as an arm stand or a processing base and a tip that is swingably connected to the rotating ring. The curved plate chamfering machine according to any one of claims 4 and 5, further comprising an elastic tensioning mechanism formed by combining them.     The chamfered blade has a blade shape capable of machining only one of the upper edge of the snowboard nose, the tail periphery, or the lower edge of a snowboard, which is a curved plate temporarily fixed on a machining base. The curved plate chamfering machine according to any one of 1 to 7.     The chamfered blade has a blade shape capable of simultaneously machining both the upper edge and the lower edge of a snowboard nose or tail periphery of a snowboard, which is a curved plate temporarily fixed on a machining base. A curved plate chamfering machine according to claim 1.     The snowboard nose or tail, which is a curved board with the deck surface facing upward, is temporarily fixed on the processing base, and the chamfering blade is rotated and activated while it is separated from the edge of the snowboard, and the tool mounting part becomes a horizontal slide mechanism. The chamfering blade is brought into contact with the peripheral edge of either the left or right edge of the snowboard nose or tail, while the tool mounting part is moved vertically along the vertical slide mechanism. While cutting the chamfering edge into the edge of the snowboard and swinging the swing block, the chamfering edge is moved along the unnecessary edge while sliding the horizontal slide mechanism and the vertical slide mechanism. Smooth movement to the edge rim to eliminate unwanted edges on the snowboard nose or tail How dropped snowboard edges by claims 1 to 9 any one claim of curved plate chamfering machine is characterized in that a structure which enables a homogeneous chamfer over substantially the entire length of the. The snowboard nose or tail, which is a curved plate with the deck surface facing upward, is temporarily fixed on the processing base, and the chamfering blade is rotated and activated while being separated from the edge of the snowboard, and the tool mounting part is a vertical slide mechanism. The upper surface scanning contact piece is brought into contact with the deck surface of the snowboard while moving along the horizontal direction of the snowboard, and the side surface scanning contact piece is moved along the horizontal slide mechanism in the horizontal direction. The chamfering blade is cut into the edge of the snowboard by moving it so that it touches the peripheral edge of either the left or right edge of the nose or tail unnecessary edge, so that the contact state of the side surface contact contact piece and the top surface contact contact piece to the snowboard is maintained. At the same time as swinging the swing block, slide the horizontal slide mechanism and the vertical slide mechanism. By smoothly moving the chamfering tool along the unnecessary edge to the peripheral edge of either the left or right side on the opposite side, the chamfering blade can be uniformly chamfered over almost the entire length of the unnecessary edge of the snowboard nose or tail. 6. A snowboard edge dropping method using a curved plate chamfering machine according to claim 5.

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