JP2011524819A - Chamfering amount adjustment device for portable chamfering machine - Google Patents

Abstract

The present invention relates to a chamfering amount adjusting device for a portable chamfering machine that adjusts and maintains a chamfering amount by a simple method so that a precise and accurate chamfering operation can be performed. A guide part is formed at the lower end, and a chamfering amount adjuster that can be moved up and down by rotation, and a plurality of scale grooves that are fitted to the chamfering amount adjuster and coupled to the upper part of the horizontal guide part are formed. A movable housing having a fixed bar that is inserted into and removed from the scale groove, an elastic member coupled to the interior of the movable housing, and the movable housing is fixed. A long hole having a predetermined length into which the bar is inserted is formed, and includes a fixed housing inserted between the elastic member inside the movable housing and the chamfering amount adjusting tool. In the portable chamfering machine, the chamfering amount is adjusted by rotating the chamfering amount adjusting tool after the fixing bar moves upward along the long hole and is detached from the scale groove. It is a chamfering amount adjusting device, which adjusts and maintains the chamfering amount accurately with a simple operation method, improves the working rate and quality, simplifies the above components, makes the production convenient and reduces the cost. The effect which can be produced can be produced.

Description

  The present invention relates to a chamfering amount adjusting device for a chamfering machine that processes an edge portion of a processing member into a slope, and more specifically, a chamfering amount is adjusted and maintained by a simple method to perform a precise and accurate chamfering operation. The present invention relates to a chamfering amount adjusting device for a portable chamfering machine.

  In general, chamfering work is performed to chamfer sharp edges of steel, non-ferrous metals, and resin, and after processing parts such as roughly metal, the risk of burrs and sharp edges of the product edge is removed. For this purpose, it is an operation mainly performed at the final stage of metalworking.

  Therefore, since the quality of the product can be determined by the chamfering operation, the surface degree is maximized and a clean slope can be obtained.

  The edge chamfering machine used in the above chamfering operation is called a beveler, and is a tool for processing an edge where a surface of a member intersects into a slope or a circle, and drives a motor using electric power. Then, the cutting tip is rotated by the driving force to process the edge of the member.

  The burr is generated at the edge portion of the workpiece during cutting, and refers to a protrusion phenomenon that occurs as a result of the cutting tool being plastically deformed and extruded while passing the edge portion of the workpiece.

  The above burr reduces the accuracy of the work piece and affects the safety of the worker. Therefore, a post-processing (deburring) process is caused to remove the burr, thereby resulting in cost generation and work bottleneck phenomenon. Cause various effects on the cost of the product.

  Since chamfering operations must search for all edges of a part, it is difficult for a machine tool to re-install the workpiece several times according to each side, and in almost all cases except for mass-automated production. It is done manually.

  The chamfering machine used for the chamfering work is roughly divided into a portable type and a fixed type, and the portable chamfering machine is mainly used when the workpiece is heavy and large, and the workpiece is small and lightweight, If the operator can hold it, a fixed chamfering machine is used.

  The above-mentioned portable chamfering machine has a straight type and a universal (curved) type, and the linear type can only process straight angles, whereas the universal (curved) type is not only a straight angle but also chamfers for curved angles, holes and grooves. Because it is possible, portable universal (curved) chamfering machines are mainly popularized and used in most industrial sites including rent processing companies.

  A general portable chamfering machine adjusts the amount of chamfering during edge chamfering work. After releasing the fixing state of the fixture, the screwed guide is rotated according to the user's observation to rotate the cutting tool. Adjust the exposure.

  Therefore, with existing chamfering machines, it is very difficult to adjust the chamfering amount, and it takes a lot of work time to adjust the chamfering amount and the work rate is reduced. Is not uniform and the processed member cannot be precisely processed.

  In addition, the chamfering amount cannot be precisely adjusted to a predetermined unit, and the set chamfering amount cannot be accurately maintained while the guide part can be finely solved by vibration caused by strong rotation of the motor during work. Generated. Furthermore, it is very difficult to set the initial reference point of the chamfering amount in the process of reassembling the support holder after separating the guide and replacing the cutting tip.

  In Korean Patent No. 10-0575201 (name of invention: chamfering machine whose chamfering amount adjustment is easy) filed earlier than the present invention, in order to solve the above-mentioned problems, a rotary cutting tool is rotatably installed inside. A cutting tool housing having a fixed spline formed on an upper outer surface thereof; an adapter that is screwed to the upper portion of the cutting tool housing and that is selectively connected to a tool that provides rotational force to the rotating cutting tool; An indicator fitted between the outward flange formed on the outside and the cutting tool housing; a transfer guide holder screwed to the outside of the cutting tool housing so as to be able to move up and down, and having a rotating spline formed on the outer surface A support holder screwed to the lower portion of the transfer guide holder and having a guide plate formed at the bottom; a rotating spline of the transfer guide holder; And a chamfering amount adjusting tool for adjusting and maintaining the chamfering amount while sliding up and down selectively, and a fixed spline of the cutting tool housing and a rotating spline formed on the inner surface are coupled; A chamfering machine with an easily adjustable chamfering amount, characterized by comprising a resilient member sandwiched between a support holder and providing an elastic force to the chamfering amount adjusting tool.

  The chamfering amount adjusting tool can be finely and precisely controlled by a simple method of rotating the chamfering amount adjusting tool by the divided chamfering scale after sliding the chamfering amount adjusting tool through the chamfering machine to temporarily release the locked state. It is made up of a cutting tool housing including a fixed spline and a transfer guide holder including a rotating spline installed for the above operation, and the structure is very complicated. There is a problem that it takes considerable time.

Korean Registered Patent No. 10-0575201

  Therefore, in order to solve the above-described problems, the present invention can easily and quickly release the chamfering amount adjusting tool with one touch, and the chamfering scale is engraved on the chamfering machine so that the chamfering amount adjusting tool is chamfered. The chamfering amount can be finely and accurately adjusted by a simple method of step rotation according to the scale, and the quality of the processed member can be improved through stable work.

  It is another object of the present invention to reduce costs by simplifying the components of the chamfering amount adjusting device installed for the above operation and making the chamfering amount adjusting device simple.

  In order to achieve the above object, the present invention provides a chamfering amount adjusting device for a portable chamfering machine, wherein a horizontal guide portion for guiding a chamfering position of a processing member is formed at a lower end, and the chamfering is movable up and down by rotation. A scale in which a plurality of scale grooves are formed which are fitted to the amount adjusting tool and the chamfering amount adjusting tool and are coupled to the upper portion of the horizontal guide portion and the chamfering amount adjusting tool are inserted inside, and inserted into the scale groove. A movable housing having a fixed bar to be detached, an elastic member coupled to the inside of the movable housing, and a long hole having a predetermined length into which the fixed bar of the movable housing is inserted are formed. It is composed of an elastic member and a fixed housing inserted between the chamfering amount adjuster, and the fixing bar moves upward along the long hole to move the scale groove. After being detached, a chamfering amount adjusting apparatus of a portable chamfering machine, characterized in that adjusting the chamfering amount by rotating the chamfering amount adjuster.

  Further, a fixing bar inserted into the elongated hole of the fixed housing is inserted into the scale groove to prevent the chamfering amount adjusting tool from rotating and maintain a set chamfering amount. The chamfering amount adjusting device for a portable chamfering machine is characterized in that the chamfering amount can be confirmed by the position of the fixed bar to be inserted with the symbol displayed.

  According to the present invention, the chamfering amount of the portable chamfering machine is set by a simple and quick operation method, and the chamfering amount of the processing member is processed uniformly and precisely by maintaining the set chamfering amount accurately. The work rate and quality can be increased, and the degree of work completion can be increased.

  In addition, by simplifying the components of the present invention, the chamfering machine can be reduced in weight, easy to carry and chamfer, the structure is simplified, and the production is convenient, thereby reducing the production cost. In addition, an unskilled worker can easily and accurately adjust the predetermined chamfering amount, so that the effect of popularization can be achieved.

It is a disassembled perspective view of the chamfering amount adjustment apparatus by this invention. It is the front view with which the cutting device comprised by this invention and the chamfering amount adjustment apparatus were couple | bonded. It is coupling | bonding sectional drawing of the cutting device comprised by this invention, and a chamfering amount adjustment apparatus.

  Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a perspective view of a cutting device 2 constructed according to the present invention and an exploded perspective view of a chamfering amount adjusting device 1. FIG. 2 is a front view of the cutting device 2 and the chamfering amount adjusting device 1 combined. FIG. 3 is a cross-sectional view of the chamfering amount adjusting device 1 to which the cutting device 2 is inserted and coupled, and is cut with reference to the long hole 51.

  As shown in the figure, the chamfering amount adjusting device 1 according to the present invention has a horizontal guide portion 11 for guiding a chamfering position of a machining member at a lower end, and a screw thread is formed on an outer peripheral surface. A chamfering amount adjusting tool 10 that can be moved is configured.

  The chamfering amount adjuster 10 is manufactured in a cylindrical shape through which the interior is penetrated, and provides a space into which the cutting device 2 is inserted.

  A scale 20 having a plurality of scale grooves 21 formed at the upper end of the horizontal guide portion 11 of the chamfering amount adjuster 10 is fitted to the chamfering amount adjuster 10.

  The scale groove 21 is formed to have a predetermined length and is manufactured to have a shape with an open top, and in the embodiment of the present invention, a total of ten scale grooves 21 are formed at equal intervals. did.

  Since the scale 20 including the scale groove 21 is coupled to the chamfering amount adjuster 10, the scale 20 rotates and moves together with the chamfering amount adjuster 10 as the same moving body, and enters the moving housing 30 in which the fixed bar 31 is formed. Inserted.

  In FIG. 1, the fixed bar 31 is shown separately from the outside of the movable housing 30 in order to show the fixed bar 31, but actually, it is manufactured in the form of a protrusion fixed inside the movable housing 30, and the embodiment of the present invention. Then, two fixing bars 31 corresponding to each other are formed.

  When the fixing bar 31 is manufactured in a shape having a predetermined length so as to be inserted into and removed from the scale groove 21 of the scale 20, and the fixing bar 31 is inserted into the scale groove 21, When the chamfering amount adjusting tool 10 including the scale 20 cannot be rotated to the left or right and the movable housing 30 moves upward, the fixed bar 31 fixed to the movable housing 30 is opened upward. Further, the chamfering amount adjuster 10 is configured to be able to rotate left and right by removing the scale groove 21.

  An elastic member 40 is located inside the movable housing 30, and a fixed housing 50 having a long hole 51 having a predetermined length is inserted so as to coincide with the position of the fixed bar 31.

  A fixed bar 31 of the moving housing 30 is inserted into the long hole 51, and the fixed bar 31 moves in the long hole 51. The moving housing 30 is moved up and down to move the moving bar. An elastic member 40 is located between the housing 30 and the fixed housing 50 to provide an elastic force.

  Therefore, according to the cross-sectional view shown in FIG. 3, the elastic member 40 is located between the fixed housing 50 on the inner surface of the movable housing 30 to provide an elastic force, and the chamfering is provided on the inner side of the fixed housing 50. The chamfering amount adjusting tool 10 is moved up and down by the amount adjusting tool 10 being positioned and rotating along a thread groove coupled to a thread formed on the outer peripheral surface of the chamfering amount adjusting tool 10. Make as follows.

  The fixed bar 31 is inserted into the long hole 51 of the fixed housing 50 inside the movable housing 30 so that the scale 20 is positioned inside the long hole 51.

  Hereinafter, the present invention having the above-described configuration will be described according to an embodiment that enables the present invention.

  As shown in FIG. 3, the cutting device 2 is coupled to the fixed housing 50 by bearings, screws, and the like inside the chamfering amount adjuster 10 that is penetrated, and the fixed bar 31 of the movable housing 30 is fixed. A long hole 51 of the housing 50 and the scale groove 21 of the scale 20 are inserted.

  In the embodiment of the present invention, ten scale grooves 21 are formed at equal intervals in order to adjust the total chamfering value within a range of 0 to 3 mm in units of 0.3 mm. Enter a kind of display and unit indicating the amount of chamfering.

  In order to adjust the chamfering amount of the chamfering machine, first, the movable housing 30 is moved upward, and the fixed bar 31 of the movable housing 30 is inserted into the elongated hole 51 and moved. The movable housing 30 can be moved by the length, and at the same time, the fixed bar 31 inserted into the scale groove 21 is detached from the opened upper portion of the scale groove 21.

  At this time, the moving housing 30 is subjected to a force for returning to the original position by the elastic member 40, and therefore needs to be held by hand to prevent the moving housing 30 from returning.

  Accordingly, when the fixing bar 31 is detached from the scale groove 21, the chamfering amount adjusting tool 10 can be rotated to the left or right, and the scale is set according to the desired chamfering amount of the operator in the plurality of scale grooves 21. When the groove 21 is selected and rotated to a point that coincides with the fixed bar 31 in a straight line, the chamfering amount adjuster 10 moves upward or downward inside the fixed housing 50.

  Since the chamfered scale is displayed at the lower end of each scale groove 21, the amount of chamfering can be easily confirmed by the scale display of the scale groove 21 in which the reference fixing bar 31 is inserted.

  After the selected scale groove 21 is positioned, the movable housing 30 is restored by the momentary elastic force of placing the movable housing 30, and the fixed bar 31 is reinserted into the selected scale groove 21. The chamfering amount adjusting tool 10 cannot be rotated, and the chamfering amount set by the rotation locked state can be accurately maintained.

  The chamfering amount is adjusted by moving the chamfering amount adjusting tool 10 along the scale groove 21 in which the fixing bar 31 is inserted according to the principle as described above to determine the degree of exposure of the rotary cutting tool of the cutting device 2. Can do.

  At this time, since the chamfering amount is limited to the range of 0 to 3 mm, the thread formed on the outer peripheral surface of the chamfering amount adjusting tool 10 rotates around the zero point to raise the chamfering amount adjusting tool 10. This is the principle that the chamfering amount is adjusted stepwise to 0.3 mm by 10 scale grooves 21 that are designed in advance so as to be able to move down by a total of 3 mm and are formed at equal intervals.

  Accordingly, differently from the above, if a thread is formed to move the chamfering amount adjusting tool 10 by making a total of three rotations within a chamfering range of 0 to 3 mm, the chamfering amount adjusting tool 10 is rotated once. Since 1 mm moves, the chamfering amount can be adjusted to an interval of 0.1 mm through a total of 30 steps along the scale groove 21.

  With such a configuration of the present invention, the locked state of the chamfering amount adjusting tool 10 can be easily and quickly released with one touch, and the chamfering amount adjusting tool 10 is rotated stepwise according to the chamfering scale of the scale 20. The chamfering amount can be finely and accurately adjusted and used in a simple manner.

  What has been described above is only one embodiment according to the present invention, and the present invention is not limited to the above-described embodiment. As claimed in the following claims, the present invention does not depart from the gist of the present invention. It should be said that anyone who has ordinary knowledge in the field to which the present invention belongs has the technical spirit of the present invention to the extent that various modifications can be implemented.

Claims (3)

In a chamfering amount adjusting device for a portable chamfering machine,
A chamfering amount adjuster which is formed at the lower end with a horizontal guide portion for guiding the chamfering position of the processing member and can be moved up and down by rotation;
A scale fitted with the chamfering amount adjuster and formed with a plurality of scale grooves coupled to the upper portion of the horizontal guide portion;
A movable housing in which the chamfering amount adjuster is inserted and a fixed bar is formed which is inserted into and removed from the scale groove;
An elastic member coupled to the interior of the movable housing;
A long hole having a predetermined length into which the fixed bar of the movable housing is inserted, and a fixed housing inserted between the elastic member inside the movable housing and the chamfering amount adjuster;
The chamfering amount of the portable chamfering machine, wherein the chamfering amount is adjusted by rotating the chamfering amount adjusting tool after the fixing bar moves upward along the long hole and is detached from the scale groove. Adjusting device.   The fixed bar inserted into the elongated hole of the fixed housing is inserted into the scale groove to prevent rotation of the chamfering amount adjusting tool and maintain a set chamfering amount. Chamfering amount adjusting device for portable chamfering machine.   2. The chamfering amount adjusting device for a portable chamfering machine according to claim 1, wherein a chamfering scale is displayed on the scale groove and a chamfering amount can be confirmed by a position of a fixed bar to be inserted.

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