KR20010069609A - groove processing method and apparatus of inner or outer side of a cylinder using end-mill - Google Patents

Abstract

PURPOSE: A machining method for the inside and the outside groove of a cylinder using an end mill and a machining device thereof are provided to cut a material in accurate size by rotating an end mill without the deformation of the material and to form the grooves in required size with one process. CONSTITUTION: An inside and outside groove machining device contains a dividing head(200), a housing(150), a material holder(400), an angle adjuster(500), a feed mechanism(600) on a frame(100), a driving motor(800), and an end mill(700) on the angle adjuster. A cylindrical material is fixed to the material holder and the end mill is formed in the vertical direction of the inner and the outer diameter of the material. The driving motor rotates the end mill to cut the material. The material holder is connected to a rotation limiter(300) through a rotating member supported by the housing. In accordance with the rotation of the rotation limiter, the material holder changes a cutting position for the regular shape of grooves. The angle adjuster adjusts the forward angle of the end mill to form a groove having a regular angle. The feed mechanism moves the end mill.

Description

Groove processing method and apparatus of inner or outer side of a cylinder using end-mill}

The present invention relates to a method and apparatus for forming an axial groove in the inner and outer surfaces of a cylindrical body using an end mill, and more particularly, to form a plurality of constant grooves in the inner and outer surfaces of a thin cylindrical body in an axial direction. In particular, the present invention relates to a method and apparatus for processing an inner and outer surface grooves of a cylindrical body using an end mill which can be accurately processed as an end mill that is rotated in place of the slotter processing, which has been a conventional method for forming such a groove.

In general, the end mill is used for milling, and is mounted on a mill and used for keyways or planar machining. The end mill is cut while being perpendicular to a surface fixed to a table while rotating.

In order to form the grooves in the axial direction in the cylindrical cylinder with the thinner as described above, a separate jig for supporting the cylindrical cylinder is required, and there is a problem in that productivity and efficiency are reduced as a mill used universally.

Next, slotter processing, which has been a method of forming grooves in the axial direction on the inner and outer surfaces of the cylindrical body, will be described.

1 is a schematic view of a general slotter, and as shown, the slotter is composed of a ram 10, a rotary table 20, a left and right feed mechanism 30, a front and rear feed mechanism 40, and the like. And a machine mainly for cutting keyways in the boss, to fix the workpiece on the bed and to cut downwards perpendicular to the bed. A tool is coupled to the end of the ram and moves up and down, and the workpiece is cut when the ram is lowered and placed on the rotary table. The rotating table is positioned and the rotation can be made, and the rotating table can be moved to an appropriate position on the bed by the left and right feed mechanism and the front and rear feed mechanism.

As a tool used in the slotter, a bite is used, and FIG. 2 is a diagram showing that the biter is coupled to the fixture of the slotter bitter to perform cutting. In such cutting, the cutting amount must be appropriately selected. When the depth of cut is deep, a plurality of times of machining are required, and in the case of a thin material, there is also a problem in that deformation occurs in the workpiece during machining and dimensions are inaccurate.

Therefore, the present invention devised to solve the above problems in forming the axial grooves on the inner and outer surfaces of the cylindrical body while preventing the deformation of the material to the exact dimensions by the rotation of the end mill rather than cutting by the bite. An object of the present invention is to provide a method and apparatus for groove processing of the inner and outer surfaces of a cylindrical body using an end mill capable of cutting.

In addition, another object of the present invention is to provide a method and a device for processing the inner and outer surface grooves of a cylindrical body using an end mill that can form a groove having a desired dimension in one machining even when the depth of cut is deep.

1-schematic diagram of a typical slotter.

Figure 2-Front view of the inner and outer surface groove processing apparatus of the cylindrical body using the end mill showing an embodiment of the present invention.

3-a perspective view of a product processed by one embodiment of the present invention.

4-left side view of a splitter and a rotary actuator according to an embodiment of the present invention.

Fig. 5-A cross-sectional view showing the divider, the rotary chopper and the work holder being coupled to the rotating member and the housing.

6-an exemplary view in which core lifter is coupled to a material holder and processed.

7-a plan view in which the angle adjustment mechanism and the transfer mechanism are combined.

8-Arrangement of the angle adjusting mechanism and the transfer mechanism when the advance angle of the end mill is changed.

Figure 9-Arrangement of the material holder and the end mill according to another embodiment of the present invention.

<Description of Major Symbols Used in Drawings>

100: frame 150: housing

155: rotating member 200: dividing table

300: rotary interrupter 310: connection member

320: division number adjustment plate 330: movable plate

340: Handle 400: Material Holder

410 material holder guide 500 angle adjustment mechanism

510: rail 520: slot

600: feed mechanism 610: cylinder

620: Piston 630: Bushing

700: end mill 800: drive motor

850: injection nozzle

The present invention for achieving the above object, while the cylindrical material is supported by the rotation by a certain angle is determined by the cutting position and the end mill installed at right angles on the inner and outer sides of the material is adjusted to the forward angle during cutting to the left and right transfer device The present invention relates to a method for processing the inner and outer surface grooves of a cylindrical body using an end mill which forms grooves at equal intervals on the inner and outer sides of the cylindrical material, and is formed on the upper surface of one side of the frame and supports the rotating member therein. The housing is provided with a support member to be installed, and the rotating interrupter is fixed to one side end of the housing and a plurality of holes are formed concentrically and connected to one end of the rotating member to adjust the provision of rotation and the angle of rotation A splitter to allow the split pins to be selectively coupled to the holes and to be coupled to the other end of the rotating member. And the end holder which is wrapped around the outer circumferential surface or the inner circumferential surface of the cylindrical material, and the end mill is rotated by receiving the rotational force from the rotation axis of the drive motor and installed in a direction orthogonal to the rotation axis of the rotation member to cut the material The angle adjuster is installed on the frame and the driving motor is formed on the upper surface and the angle adjusting mechanism is adjusted to the left and right sides with respect to the axis of rotation of the rotating member, and the angle adjusting mechanism is combined with the angle adjusting mechanism to generate the forward and backward movement. A cylinder using an end mill which includes a conveying mechanism for moving the end mill installed in a spherical shape forward and backward to form a plurality of constant grooves on the inner and outer surfaces of the cylindrical material by rotating and advancing the end mill. It relates to an inner and outer surface groove processing apparatus of the sieve.

The method and apparatus for processing the inner and outer surface grooves of a cylindrical body using the end mill according to the present invention can produce a product having an accurate dimension in forming a plurality of constant grooves in the axial direction on the inner and outer diameter surfaces of a thin cylindrical body. The cutting angle can also be adjusted with a simple operation.

Preferably, the material holder is bolted for easy attachment and detachment so that the material holder may be replaced with a suitable material holder according to the size of the inner and outer diameters of the material.

Hereinafter, with reference to the accompanying drawings will be described in detail for the inner and outer surface groove processing method and apparatus of the cylindrical body using the end mill according to the present invention.

Figure 2 is a view showing a front view of the inner and outer surface groove processing apparatus of the cylindrical body using an end mill according to an embodiment of the present invention, as shown in the divider 200, the housing 150 on the frame 100 , The material holder 400, the angle adjusting mechanism 500, the transfer mechanism 600 and the drive motor 800 and the end mill 700 formed on the angle adjusting mechanism.

The cylindrical material 900 is fixed while the inner diameter or the outer diameter is contacted by the material holder 400 and the end mill 700 is formed in the vertical direction of the inner and outer diameter surfaces of the material to rotate by the rotation of the driving motor 800. As it moves forward and backward, the material is cut at the time of advancing. The material holder 400 is connected to the rotary chopper 300 by the rotating member 155 supported by the housing 150 and is interlocked as the rotary chopper 300 rotates to change the cutting position while changing the cylindrical position. The grooves of the same shape can be machined over the entire pole.

And the angle adjustment mechanism 500 is installed on the frame 100 to adjust the forward angle of the end mill 700 to form a groove having a predetermined angle as well as a vertical groove on the inner and outer surfaces of the cylindrical body. Will be. The front and rear movement of the end mill 700 is made by a transfer mechanism 600 connected with the angle adjustment mechanism 500.

Next, with reference to the accompanying Figures 2 and 3 will be described in detail with respect to the inner and outer surface groove processing apparatus of the cylindrical body using the end mill according to an embodiment of the present invention.

3 is a perspective view of a product processed by the embodiment of the present invention as a product used for the purpose of bringing out the excavated rock at the time of groundwater development to the outside, the inside and outside of the cylindrical body using the end mill according to the present invention It is a figure of the core lifter processed by the mirror groove processing apparatus. The core lifter 900 is a semi-finished product that is completed by forming a plurality of grooves 910 at equal intervals in the axial direction in which threads are formed on the inner surface thereof. The plurality of grooves 910 in the axial direction formed on the inner surface of the core lifter 900 are not parallel to the axis and form a shape in which the diameter gradually decreases from one end to the other end.

First, the overall configuration of the present invention will be described.

The housing 150 is installed on one side of the upper surface of the frame 100, and the rotating member 155 is supported by the bearing 156 inside the housing 150, and the housing of one end of the rotating member 155 ( The splitter 200 is fixedly installed at 150 and the material holder 400 is attached to the other end of the rotating member 155. The material holder 400 is rotated in conjunction with the rotating the chopper 300 and the material holder 400 is fixed to the material is installed. In one embodiment of the present invention has been shown to form a plurality of axial grooves on the inner diameter surface of the material, the end mill is located inside the material to move in the axial direction.

The end mill 700 is rotated by the rotational force of the drive motor 800, and a plurality of gears are coupled to this end to rotate at an appropriate rotational speed. The drive motor 800 is installed on the angle adjustment mechanism 500, the angle adjustment mechanism 500 is moved back and forth along the rail 510, and thus the end mill 700 is also moved. The forward and backward movement of the drive motor 800 and the end mill 700 attached to the angle adjustment mechanism 500 is made by the operation of the transfer mechanism 600 composed of the cylinder 610 and the piston 620.

The overall configuration of the present invention has been described above, and a detailed description of each component is as follows.

Figure 4 shows a left side view of the splitter 200 and the rotary interrupter 300 according to an embodiment of the present invention, the splitter 200 is a multi-stage concentric circles in a plurality of holes at equal intervals on a circular plate. Is formed in the partition 200 is fixedly attached to one end surface of the housing 150. The dividing table 200 can form holes as much as the number of divisions of the material to be processed circumferentially from the outermost side, and the number of holes can be made smaller by forming a smaller number of holes inside.

5 is a cross-sectional view showing that the divider 200, the rotary interrupter 300, and the material holder 400 are coupled to the rotating member 155 and the housing 150. As shown, the material holder 400 is installed at the right end of the rotating member 155, and the splitter 200 is fixedly attached to the left side of the housing 150, and the splitter 200 is different from the rotating member 155. Only the center shaft is the same structure is not coupled, the left side of the rotary member 155 is attached to the rotary interrupter 300, the material holder 400 by a certain angle while interlocking with the rotating member 155 You can rotate it.

A more detailed structure of the rotary chopper 300 will be described with reference to FIGS. 4 and 5. A (a) of FIG. 4 represents a state in which the split pin is positioned at the outermost portion of the divider 200, and the b (b) is separated from the hole formed in the divider by pressing the handle of the rotary chopper. It is shown that the rotation to the next cutting position, C (c) is a view showing a case where the fraud spring mechanism is located in the next split number adjustment hole by rotating the movable plate of the rotary chopper.

As shown, the rotary interrupter 300 has a connecting member 310 is fixed to the rotating member 155 by a fixing nut 315, the connection member 310 is attached to the split number adjustment plate 320 and A plurality of division number adjustment holes 325 are formed in the division number adjustment plate 320. A spring mechanism 345 having a handle 340 is connected to the movable plate 330, and a split pin 347 is attached to an end of the spring mechanism 345 to press the handle 340. 347 is raised to be separated from the hole formed in the divider 200 to make the rotating member 155 to rotate.

The movable plate 330 releases the split pin positioning fixture 335 to loosen its coupling, and then allows the spring mechanism 345 to be moved to the next split number adjustment hole 325 so as to be split. It is possible to position the split pin 347 in a suitable position.

As shown, the operator can obtain a variety of number of division by adjusting the rotational interrupter 300 according to the number of parts to divide the material.

As described above, in one embodiment of the present invention, the material holder 400 is rotated by a predetermined angle as the rotary interrupter 300 in the state in which the splitter 200 is fixed. However, the present invention is not limited thereto. It is also noted that the divider formed by a number of gear units used in a conventional mill can also be applied.

Next, the material holder is mounted and will be described with respect to the material holder 400 that is interlocked with the rotary chopper 300, Figure 6 is an example that the core lifter 900 is coupled to the material holder 400 and processed. The figure is shown.

As shown in FIG. 6, the outer diameter of the cylindrical material is fixed while contacting the inner diameter surface of the material holder 400, and the groove 910 in the axial direction is machined on the inner diameter surface of the material by the end mill 700. Since the cylindrical material is thin, the deformation of the material is more likely to occur in forming the groove 910 in the axial direction, and thus, the material holder 400 is configured to support the processing portion.

And in order to be more firmly coupled to the cylindrical material to the material holder 400 to form a material fixing bolt 450 at equal intervals on the right side thickness portion of the material holder 400 to be firmly fixed.

The material holder 400 is rotated by interlocking by rotating the rotary interrupter 300 and when the end mill 700 to cut the material material holder 400 according to the high load is generated in the material holder 400 It is preferable to form the material holder guide 410 on one side of the housing 150 so as to prevent vibration or eccentricity generated in the product and to produce a higher precision product. The material holder guide 410 is formed in a roller form and rotates while supporting the outer diameter surface of the material holder 400 to support the load.

Next, a configuration of the driving motor 800 fixed on the angle adjusting mechanism 500 and the end mill 700 that is rotated under the rotational force of the driving motor 800 to cut the material will be described.

7 is a plan view in which the angle adjusting mechanism 500 and the transfer mechanism 600 are coupled to each other, and the angle adjusting mechanism 500 includes a rail 510 and the rail installed on the frame 100. 510 is coupled to the slot 520 is coupled to the rail 510 is a drive motor attached to the slot 520 can be adjusted in the clockwise or counterclockwise direction on the frame 100 ( 800 and the forward angle of the end mill 700 interlocked with the driving motor 800 can be adjusted.

Next, the transfer mechanism 600 for moving the slot 520 of the angle adjustment mechanism 500 will be described, and the transfer mechanism 600 is a hydraulic or pneumatic cylinder 610 which is generally used. It consists of a piston 620. On the other hand, the end of the piston 620 is coupled to one end of the slot 520 and the coupling method is to be fastened by the bushing 630 so that the rail 510 and the transfer mechanism 600 is not located in a straight line. If not, the slot 520 is moved back and forth.

8 shows an arrangement relationship with the transfer mechanism 600 when the forward angle of the end mill 700 is changed by the angle adjustment mechanism 500. The angle adjustment mechanism 500 and the transfer mechanism ( Even though the 600 is not positioned in a straight line, the slot 520 of the angle adjusting mechanism 500 is fixed along the rail 510 by the pressing force by the transfer mechanism 600 as it is coupled by the bushing 630. Advance while maintaining the angle.

And it is preferable to provide a control unit to adjust the rotational speed and the feed speed of the end mill 700 to be appropriately adjusted according to the material or cutting depth of the material.

In addition, as shown in FIG. 2 or 6, the injection nozzle 850 for supplying the cutting oil is formed on the upper side of the end mill 700, the cutting oil supply pump 860 and the cutting flow for supplying the cutting oil 870 is provided.

In an embodiment of the present invention, but the sequential rotation of the material holder 400 by a predetermined angle in a manual manner, but is not limited to this, once the cutting of one place by the end mill as a sensor sensed The material holder may be rotated to the next working position at the same time as the end mill is returned.

Next, another embodiment of the present invention will be described.

9 is a view showing the arrangement relationship between the material holder 400 and the end mill 700 according to another embodiment of the present invention, as shown is the material to be processed on the outer peripheral surface of the material holder 400 is attached The end mill 700 is disposed at a position capable of processing an axial groove on the outer diameter surface of the material.

In another embodiment of the present invention by using the angle adjustment mechanism 500 can be adjusted to process the grooves that are not parallel to the axial direction on the outer circumferential surface of the material and the rotary interrupter 300 and the divider 200 The grooves can then be machined at the desired angle.

The present invention by the configuration as described above has the effect that the grooves in the axial direction on the inner or outer diameter surface of the thin cylindrical material that is not easy to manufacture by milling or slotting processing can be processed more quickly and precise dimensions. In addition, since the deformation of the material can be prevented during cutting, there is also an effect of reducing the occurrence of defect rate and an effect of improving work efficiency by simple operation.

Claims (4)

The cutting position is determined by being rotated by a predetermined angle while the cylindrical material is supported, and the end mill installed at right angles to the inner and outer sides of the material is advanced by the left and right transfer device when the cutting angle is controlled and the inner and outer sides of the cylindrical material are advanced. Internal and external groove processing method of a cylindrical body using an end mill to form grooves at equal intervals in the axial direction. In a cutting device equipped with a frame and a drive motor provided on the frame for generating the rotational force required for cutting, A housing formed on an upper surface of one side of the frame and having a support member installed therein to support the rotating member; The pins are fixedly installed at one end of the housing, and a plurality of holes are formed concentrically, and the split pins of the rotary interrupter which are connected to one end of the rotating member to adjust the provision of rotation and the angle of rotation are selectively coupled to the holes. A partition for separating; A material holder coupled to and coupled to the other end of the rotating member and surrounding the outer circumferential surface or the inner circumferential surface of the cylindrical material; An end mill which is rotated by receiving a rotational force from the rotational shaft of the drive motor and is installed in a direction orthogonal to the rotational axis of the rotational member to cut the material while being advanced; An angle adjusting mechanism installed on the frame and configured to have the driving motor formed on an upper surface thereof and to adjust the angle to the left and right with respect to the rotating shaft of the rotating member; A transfer mechanism coupled to the angle adjustment mechanism to move the end mill installed on the angle adjustment mechanism back and forth by generating a forward and backward movement, and configured to include the inner and outer surfaces of the cylindrical material by rotating and advancing the end mill. Internal and external groove processing apparatus of a cylindrical body using an end mill, characterized in that for forming a plurality of constant grooves. The method of claim 2, wherein the transfer mechanism, The inner and outer surface groove processing apparatus of the cylindrical body using an end mill is coupled by the angle adjusting mechanism and the bushing is configured to be moved back and forth even if the installation direction is adjusted in the angle adjusting mechanism. The method of claim 2, wherein the housing, The inner and outer surface groove processing apparatus of the cylindrical body using an end mill is provided with a guide roller for guiding the rotation of the material holder and to prevent the shaking caused by the vibration generated during the cutting operation.