KR100375399B1 - The auto grinder for bite - Google Patents

Abstract

The present invention relates to an automatic polishing device for "V" grooving bites used to machine "V" grooving grooves on the surface of a material for guiding bending. Fixed bite holder and movement control sensor for processing the chip discharge groove of the bite on the upper surface by moving the handle back and forth by the handle on the support object of the grinder, which is equipped with two grinding wheels and configured to adjust the height up and down. It has a forward and backward movement table having a reciprocating movement on the reciprocating movement table and the reciprocating movement repeatedly to the left and right and associated with the movement control sensor and the rotating bite holder for rotatably fixing the bite on the upper surface A sensor buffer structure is provided to change the rotational direction of the stepping motor and to alleviate the impact of the sensor. Equipped with a reciprocating table installed, it is possible to grind a number of bites at the same time, it is possible to extend the service life of the bite, to improve the precision and processing performance of the grooving, and to fasten both edges of the bite at the correct angle and condition. It can be easily polished to improve work efficiency, improve product reliability and prevent accidents.

Description

Automatic Grinding Device for Cutting Bite {THE AUTO GRINDER FOR BITE}

The present invention relates to an automatic polishing device of a "V" shaped grooving bite used to machine a "V" shaped groove on a surface of a material to guide bending. Fixed bite holder for machining the chip discharge groove of the bite on the upper surface by moving back and forth by the handle on the support object of the grinder, which is equipped with two grinding wheels for processing the grinder and the height of which can be adjusted up and down is installed. And a rotation bite holder having a forward and backward movement table having a motion control sensor and repeatedly moving back and forth through the operation structure for reciprocating movement on the forward and backward movement table, and fixedly supporting the bite on the upper surface so as to rotate. It works in conjunction with to change the direction of rotation of the stepping motor and to alleviate the impact of the sensor being contacted. It is equipped with a reciprocating table in which a sensor buffer structure is installed, and it is possible to grind several bytes at the same time and precisely match the specifications of both edges of each bite and the chip ejection groove. It is possible to improve the precision and processing performance of the cutting machine, and the cutting edge of the bite can be polished quickly and easily at the correct angle and condition to improve the work efficiency, improve the reliability of the product and prevent safety accidents.

In general, cutting edge angles of bites used in general-purpose machine tools have a significant impact on the surface roughness of the workpiece and the life of the tool, requiring precise grinding of the bite.

In particular, the "V" shaped grooving bite, which is used to machine the "V" shaped groove on the surface of the material to guide bending, has the same angle of the two edges exactly around the vertex of the blade tip and The forming angle and inclination should be processed optimally so that the amount of processing to be handled by each bite of the bite coincides and the chip is discharged smoothly so that the surface of the groove can be precise and work efficiency can be improved and the service life of the blade will be long.

However, in the prior art, to grind the bite, grinding grindstones are usually installed on both sides, and while the bite is supported on the base of the grinder which rotates at high speed at the same time, the bite is applied to the whetstone and manually applied with appropriate pressure. To sharpen the cutting edge angle or chip exit groove,

It was a difficult task for unskilled workers, as well as skilled workers, it was difficult to precisely match the cutting edge angle of the bite and the inclination angle and depth of the chip discharge groove.

Therefore, in the case of processing the groove with the cutting angle of the bite and the chip ejection groove as described above, the surface roughness of the processing groove is poor and the groove angle is not uniform, but the quality of the produced product is deteriorated and the chip shape is poor and the discharge is performed. This is not smooth, shortening the service life due to deterioration of the bite, deterioration of workability, and the fear of burns due to fragments of chips scattered is increased.

In addition, after test processing the polished bite through the workpiece, the workpiece is cut to check various conditions such as the roughness of the surface and the angle of formation of the cutting groove, and when the condition is not satisfied, the bite has to be polished again and again. will be.

This manual work is a waste of time and manpower, which leads to a decrease in work efficiency. In addition, when the grinding wheel is subjected to excessive force or the bite is removed from the grindstone, the whetstone rotating at high speed may be destroyed or the body may be damaged. The risk of accidents was so great that a high degree of prudence was required for the grinding work.

On the other hand, conventional machine tools use only one bite, so in order to process a groove, the bite has to be moved back and forth several times, but recently, due to the development of machine tools, a plurality of bites are projected sequentially in one holder. It is fixed so that the groove is completed in one machining.

As mentioned above, each byte applied to the latest machine tool using multiple bytes at the same time must have precise angles of the two edges and the position of the vertices. Otherwise, there are several groove bottom lines and the width of the grooves increases. It will cause a defect.

In addition, only one side of the material is processed to shorten the service life and torsional load is applied to the holder is caused a big problem, such as a structural deformation of the holder or fluctuation of bite bite state.

On the other hand, in consideration of the above problems, it is known to grind the bite using a grinder that is moved up and down through the lever by using a jig, but this is only applicable to one bite, so it is low in workability and grinds by hand. The grinding speed of the grinder is very poor due to the uneven grinding speed of the grinder, and the work is very cumbersome, and there is no separate structure to adjust the cutting edge of the bite. There is a problem that is difficult to apply.

Moreover, since only the cutting edge of the bite can be machined, the chip ejection groove is to be machined by hand, so the range of use is simple and ineffective.

The present invention has been made in view of the above points,

An object of the present invention is to grind a plurality of bites at the same time and to precisely match the specifications of the two blades and chip ejection grooves of each bite to extend the service life when using the bite and to improve the precision and processing performance of the groove processing It is possible to grind the edges of the bite quickly and easily at precise angles and conditions, thereby providing a bite grinding device that can improve work efficiency, improve product reliability, and prevent safety accidents.

In order to achieve the object of the present invention as described above, the present invention proposes a grinder having two grinding wheels for grinding the blade and processing the chip discharge groove on the fixing table of the support, and configured to adjust heights up and down.

In addition, the present invention proposes a back and forth movement table which is reciprocated back and forth by a handle and a moving rail, and a reciprocating table which is moved laterally on the front and rear movement table via a moving rail to a support object of the polishing machine.

In addition, the present invention provides a fixed bite holder for processing the chip discharge groove of the bite on the upper surface of the front and rear movement table.

In another aspect, the present invention proposes a movement control sensor fixed to the front and rear movement table for controlling the reciprocating movement range of the reciprocating table.

The present invention also provides a rotating bite holder for rotatably fixing the bite so that both edges of the bite can be polished at an arbitrary angle on the upper surface of the reciprocating table.

In addition, the present invention is provided in the front of the reciprocating table is operated in conjunction with the movement control sensor and proposes a sensor buffer structure to reduce the impact of the sensor to be contacted with setting the direction of the direction of the reciprocating table.

In addition, the present invention is installed on the front of the reciprocating table fixed to the rack gear and the rack gear for receiving the electric power for the reciprocating movement, in engagement with the rack gear of the reciprocating table to provide the reciprocating movement force in the reciprocating table And a reciprocating table operating structure including a drive gear driven by a stepping motor.

Hereinafter, the configuration of the present invention in detail based on the accompanying drawings.

1 is a perspective view showing the overall configuration of the present invention.

Figure 2 is a plan view showing a configuration of the present invention.

Figure 3 is a cross-sectional view of the main portion showing the operation structure of the front and rear movement table and reciprocating table applied to the present invention.

Figure 4 is a main cutaway for explaining the direction change process of the reciprocating table applied to the present invention.

Figure 5 is a sectional view of the main part showing a sensor buffer structure which is a main part of the present invention.

Figure 6 is a perspective view of the main part showing the configuration of a rotating bite holder, which is a main part of the present invention.

Figure 7 is a perspective view showing a state of processing the chip discharge groove of the bite through a fixed bite holder, which is an aspect of the present invention.

Figure 8 is a main incision showing the height adjustment structure of the grinder which is one part of the present invention.

Fig. 9 is a perspective view showing a known bite processed by the present invention.

10 is a view showing another configuration example of the reciprocating table drive structure applied to the present invention.

※ Explanation of code about main part of drawing ※

C: Cover CB: Control Box F: Support

M: Motor N: Nut SM: Stepping Motor

10: grinder 11, 12: grinding wheel 13: base

20: grinder height adjustment structure 21: lifting guide 22: support

23: screw rod 24: driven bevel gear 25: driven bevel gear

26: handle 30: before and after moving table 31: moving rail

32: Front and rear movement handle 32A: Screw portion 33: Handle support

40: reciprocating table 41: moving rail 50: rotating bite holder

51: Byte support plate 52: Guide 53: Scale

54: support body 55: byte fixture 56: screw rod

57: pressure plate 58: position fixing screw 60: fixing bite holder

61: fixing rod 62: byte inserter 63: fixing screw

64: screw hole 70: movement control sensor 80: sensor buffer structure

81: operating hole 82: support tube 83: sensor movable member

83A: Sensor moving part 83B: Screw part 83C: Spring support

84: buffer spring 85: washer 90: reciprocating table operating structure

91: rack gear 92: drive gear 93: support

94: information service 95: drive disk 96: roller pin

1 is a perspective view showing the overall configuration of the present invention,

Grinding of both edges B 'of the bite B and the chip ejection groove on the fixed table T of the support table F having the control box CB for electrically controlling the overall operation of the operating structure on the front surface A grinder 10 having two polishing wheels 11 and 12 for processing (B ″) and configured to be capable of height adjustment up and down is fixedly installed.

The grinder 10 is mounted on the vertical lifting guide 21 and the base 13 of the grinder 10, as shown in FIG. 8, and is moved on the lifting guide 21. The support 22 and the upper end is rotatably installed on the fixed table (T) and has a driven bevel gear 24 at the lower end and a screw rod 23 screwed with the support 22, and the driven bevel The height can be adjusted on the fixed table (T) through the grinder height adjustment structure 20 is composed of a mobilizing bevel gear 25 is integrally coupled with the handle 26 in the engaged state with the gear (24).

As shown in FIG. 2, the front and rear movement handle 32 is slidably coupled to the set of moving rails 31 fixed to the fixed table T and supported by the handle support 33. It is screwed with the screw portion (32A) of the) is configured to be movable back and forth on the fixed table (T) by the moving rail 31 in accordance with the rotation direction of the front and rear movement handle (32).

The reciprocating table 40 is slidably coupled to a set of moving rails 41 fixed to the front and rear movement table 30 so as to be movable left and right on the front and rear movement table 30 when a separate external force is applied.

On the upper surface of the reciprocating table 40, as shown in FIG. 6, the rotating bite holder 50 for rotating the bite B at an arbitrary angle is rotatably arranged, but the rotating bite holder 50 has a set of guide holes ( 52, a circular bite support plate 51 having a scale 53 for indicating the degree of rotation on the outer circumferential surface, a support 54 fixedly installed on the upper surface of the bite support plate 51, and a screw rod ( 56 is screwed onto the support 54 through the bite fixture 55 and the guide hole 52 is coupled to the pressure plate 57 for pressing and supporting the bite to the lower end of the screw rod 56 It is fastened to the upper surface of the reciprocating table 40 in the fitted state and configured to be coupled to each of the position fixing screws 58 for fixing the rotational position of the bite support plate 51.

In addition, the fixed bite holder 60 is fixedly installed on the upper surface of the front and rear movement table 30 as shown in FIG. 7, but the fixed bite holder 60 is formed in a rectangular shape that is inclined at a predetermined angle on the upper surface of the fixing base 61. It consists of a bite inserting tube 62 and a fixing screw 63 fastened to the bite inserting tube 62 through a screw hole 64 to tighten and fix the inserted bite B.

The front and rear movement table 30 is provided with a set of movement control sensor 70 fixedly installed to face each other in a state of maintaining a constant separation distance as shown in Figure 4 to control the reciprocating movement range of the reciprocating table 40 Do it.

A cover C is fixedly installed on the front surface of the reciprocating table 40 to protect the movement control sensor 70 from the outside, and both sides of the cover C are operated in association with the movement control sensor 70 to reciprocate. It is provided with a sensor buffer structure 80 for mitigating the impact of the movement control sensor 70 in contact with the set time of the direction change of the table 40 at the same time.

The sensor buffer structure 80, as shown in Figure 5 operating holes 81 are drilled on both sides of the cover (C), the support tube 82 formed integrally with the edge of the operating hole 81 and the It is installed to be movable in the interior of the support pipe 82 and the threaded portion (83B) is coupled to the sensor moving part (83A) and nut (N) which protrudes into the operating holes 81 at both ends to contact the movement control sensor (70) And a sensor movable member 83 integrally provided with a spring support jaw 83C, and is provided in the support tube 82 to impart an elastic return force to maintain a state in which the sensor movable member 83 is always protruding. The buffer spring 84 for relieving the impact by reversing when the contact with the box and the allerra move control sensor 70, and the nut (N) and the support tube 82 is inserted between the sensor movable member 83 Each of the impact noise reduction washer (85) for reducing the contact noise of the nut (N) at the return is configured.

Meanwhile, a reciprocating table operating structure 90 is installed to provide reciprocating force to the reciprocating table 40.

The reciprocating table operating structure 90 is installed on the front of the reciprocating table 40, as shown in Figure 3 and 4, the rack gear 91 for receiving the electric force for the reciprocating movement and the reciprocating table 40 Stepping motor (SM) is fixed to the front and rear movement table 30 so as to be engaged with the rack gear 91 of the front and receiving the electrical signal of the movement control sensor 70 to perform the forward and reverse rotation It is configured to include a drive gear 92 rotated through.

10 is a view showing another configuration example of the reciprocating table operating structure 90,

The longitudinal guide hole 94 longitudinally drilled on the support piece 93 installed to extend downward in the front of the reciprocating table 40, and is configured to be integrally coupled with the rotation shaft of the motor (M) It consists of the drive disc 95 provided in the eccentric position by the roller pin 96 inserted in the 94, and providing the reciprocating movement force to the reciprocating table 40. As shown in FIG.

※ Unexplained code in the drawing ※

(S) is the power switch, (GS) is the grinder switch, and (SC) is the speed control knob of the stepping motor.

Referring to the operation of the present invention configured as described above in detail as follows.

First, the process of grinding both edges B 'of the bite B is as follows.

Unscrew the bite fixture 55 of the rotating bite holder 50, lift up the platen plate 57, insert a plurality of bites B into the bite support plate 51, and then tighten the bite holder 55. Press down on the bite as it descends so that it is firmly supported.

Meanwhile, in the drawing, the width of the support body 54 is set to a standard capable of mounting three bytes at the same time, but this is only one configuration example, and the size of the support body 54 so that less than or more bytes can be installed as necessary. Of course, it can be configured by changing.

When the fixing of the bite is completed in this way, by unfastening the position fixing screw 58 and releasing the restraint of the bite support plate 51 to rotate it, by turning the bite support plate 51 at an appropriate angle, Set the setting.

At this time, through the scale 53 engraved on the outer circumferential surface of the bite support plate 51 can determine the degree of angle adjustment with the eye can be pursued for precision in the angle adjustment.

In this way, when the holding of the bite is completed, the speed adjusting knob SC of the stepping motor SM is adjusted to appropriately set the moving speed of the reciprocating table 40, and then the power switch S and the grinder switch of the control box CB. By turning on the GS, the grinding operation is started through the rotation of the grinding wheels 11 and 12 of the grinder 10 and the operation of the reciprocating table 40.

In order to perform the function of accessing or retracting the fixed bite to the grinder 10 or adjusting the grinding depth, the operation of the front and rear movement table 30 is required, which is controlled through the front and rear movement handle 32. When the front and rear movement handle 32 is rotated, the front and rear movement table 30 which is screwed with the screw portion 32A is slid along the movable rail 31 through the translational movement of the screw to move back and forth.

Looking at the operation of the reciprocating table 40 through the "on" of the power switch (S) as follows.

When the power switch S is “on” and the drive gear 92 coupled to the stepping motor SM is rotated in the direction of the arrow, the rack gear 91 and the reciprocating table 40 engaged therewith are virtual as shown in FIG. 4. The bite is moved as a line and the bite fixed to the rotating bite holder 50 passes through the friction wheel 11 while rubbing the bite to be polished. Meanwhile, when the reciprocating table 40 moves, the cover C fixed to the bite The sensor buffer structure 80 installed on the cover C is also moved at the same time so that the sensor movable member 83 of the sensor buffer structure 80 comes into contact with the movement limit sensor 70 on one side and the movement limit sensor 70. As the direction of rotation of the stepping motor SM is switched by the signal of the drive gear 92 is rotated in reverse to move the reciprocating table 40 in reverse.

In the process in which the sensor movable member 83 is in contact with the movement limiting sensor 70, due to the inertial force of the sensor movable member 83, the momentary contact with the movement limiting sensor 70 may not be moved in the opposite direction, but rather finely. Further advancement causes a relatively large impact on the movement limiting sensor 70, which may cause noise and severe damage. However, in the present invention, the instantaneous shock absorbing spring (83A) contacts the movement limiting sensor 70. 84) is to reduce the impact by pushing back to prevent the reduction of noise and damage to the movement limiting sensor (70).

On the other hand, in the process of returning the sensor movable member 83 pushed back to the original position, the washer 85 prevents shock noise between the nut N and the support tube 82.

On the other hand, when the grinding of one side of the bite is completed, as shown in Fig. 2, loosen the fixing screw 58 to release the bite support plate 51, and then turn the bite support plate 51 at an appropriate angle as in the virtual line. Set the blade angle of the non-polished other side of the bite, set its position, and grind the blade through the above process.

When the cutting of both blades B 'is completed while turning the bite as described above, the bite is inserted into the square bite insertion tube 62 fixed to the upper surface of the front and rear movement table 30 as shown in FIG. 63), and then, the front and rear movement handle 32 is rotated to push the front and rear movement table 30 toward the polishing wheel 12. As the bite rubs against the polishing wheel 12, the chip ejection groove B " ) Is quickly, simply and precisely processed.

On the other hand, the rear part of the cutting edge of the bite B should be polished so as to enter the blade to prevent contact with the material. When the diameter of the abrasive wheel 11 decreases due to abrasion, the polishing angle of the rear edge of the cutting edge gradually decreases. In this case, as shown in FIG. 8, when the rotating bevel gear 25 is rotated by turning the handle 26, the screw rod 23 is rotated, and the support 22 which is screwed to the translational movement is raised or lowered to the grinder 10. By adjusting the height of the) it is possible to adjust the contact angle with the bite by changing the position of the polishing wheel 11 can solve the problem caused by the wear of the polishing wheel (11).

10 shows another configuration example of the reciprocating table operating structure 90,

Rotating the drive disk 95 causes the eccentric roller pin 96 to change position by guiding the hole 94. The support piece 93 is virtually struck through the position shift of the roller pin 96. It is to be repeatedly moved to perform the reciprocating motion of the reciprocating table 40 per one rotation of the drive disk (95).

In addition, by varying the installation position of the roller pin 96, that is, the degree of eccentricity, the reciprocating distance can be easily adjusted. In this structure, the driving disc 95 only needs to be rotated in one direction, so that the movement control sensor 70 is separate. And a structure such as the sensor buffer structure 80 is not necessary.

As described above, the present invention can simultaneously grind a plurality of bites and precisely match the machining specifications of each bite and the chip ejection groove, thereby extending the service life of the bite and improving the precision and processing performance of the bite. It is possible to improve and to improve the work efficiency, the reliability of the product and the prevention of safety accidents because the edge of the bite can be polished quickly and easily at the correct angle and condition.

Claims (6)

It is fixedly installed on the fixed table T of the support 22 having the control box CB for electrically controlling the overall operation of the operating structure on the front surface, and the polishing of both edges B 'of the bite B A grinder 10 having two polishing wheels 11 and 12 for processing chip discharge grooves B ″ and configured to be capable of height adjustment up and down; Is screwed with the screw portion 32A of the front and rear movement handle 32 supported by the handle support 33 in a state that is slidably coupled to a set of moving rails 31 fixed on the fixed table (T) A front and rear movement table 30 configured to be movable back and forth on the fixed table T by the movable rail 41 according to the rotation direction of the front and rear movement handle 32; A reciprocating table (40) slidably coupled to a set of moving rails (41) fixed on the front and rear movement table (30) and configured to be movable left and right on the front and rear movement table (30); A rotatable bite holder (50) rotatably mounted on the reciprocating table (40) for fixing a plurality of bites (B) to be polished at an arbitrary angle; Square bite inserting tube 62 configured to be inclined at a predetermined angle on the upper surface of the fixing base 61 fixedly installed on the upper surface of the front and rear movement table 30, and the bite inserting tube 62 through the screw hole 64 A fixed bite holder (60) consisting of a set screw (63) for fastening and tightening the inserted bite (B); A set of movement control sensors 70 fixedly installed at the front and rear movement table 30 so as to face each other in a state of maintaining a predetermined distance and controlling the reciprocating movement width of the reciprocating table 40; The movement control sensor is installed on both sides of the cover (C) which is fixed to the front of the reciprocating table 40 is operated in association with the movement control sensor 70, the movement control sensor is in contact with at the same time to set the direction change point of the reciprocating table (40) A sensor buffer structure 80 for mitigating the impact of 70; And a reciprocating table operating structure (90) for reciprocating the reciprocating table (40). The method of claim 1, wherein the grinder 10 A vertical lifting guide 21 provided on the fixed table T, A support 22 fixed to the base 13 of the grinder 10 and moved on and off the lifting guide 21; The upper end is rotatably installed on the fixed table (T) and the lower end is provided with a driven bevel gear 24 and screw rod 23 screwed with the support 22, Height adjustment on the fixed table (T) through the grinder height adjustment structure (20) comprising a driven bevel gear (25) integrally coupled with the handle (26) in engagement with the driven bevel gear (22). A bite automatic polishing device characterized in that it is possible. The rotating byte holder 50 according to claim 1, A circular bite support plate 51 which is pivotally arranged on the upper surface of the reciprocating table 40 and has a set of guide holes 52 and a scale 53 for indicating the degree of rotation on the outer circumferential surface thereof; A support body 54 fixedly installed on an upper surface of the bite support plate 51; A bite fixture 55 which is screwed onto the support 54 through a screw rod 56 and is coupled with a pressure plate 57 for pressing and supporting the bite B at the lower end of the screw rod 56; It is fastened to the upper surface of the reciprocating table 40 in the state fitted in the guide hole 52 and the combination of the position fixing screw 58 for fixing the rotational position of the byte support plate 51, respectively Automatic polishing device. The method of claim 1, wherein the sensor buffer structure 80, An operating hole 81 drilled on both sides of the cover C, A support tube 82 protruding integrally with the edge of the operation hole 81; A sensor movable part 83A and a fastening nut N which are installed to be movable in the support tube 82 and protrude into operating holes 81 at both ends, and which are in contact with the movement control sensor 70 during reciprocating movement. A sensor movable member 83 composed of a screw portion 83B and a spring support jaw 83C to which the coupler is coupled; It is built in the support pipe 82 and imparts an elastic return force so as to maintain the state in which the sensor movable member 83 is always protruded, and a buffer for relieving the impact by reversing in contact with the alller movement control sensor 70. With spring 84, It is inserted between the nut (N) and the support tube 82 and is characterized in that it comprises a shock reduction washer 85 for reducing the contact noise of the nut (N) when the sensor movable member 83 returns. Automatic polishing device of bite made. The reciprocating table operating structure 90 according to claim 1, wherein A rack gear 91 installed at the front of the reciprocating table 40 to receive electric power for reciprocating movement; It is fixedly installed on the front and rear movement table 30 so as to be engaged with the rack gear 91 of the reciprocating table 40 and receives the electrical signal from the movement control sensor 70 to perform forward and reverse rotation. Bite automatic polishing device, characterized in that consisting of a drive gear 92 is rotated through a stepping motor (SM). The reciprocating table operating structure 90 according to claim 1, wherein A long guide hole 94 longitudinally drilled on the support piece 93 installed downwardly on the front surface of the reciprocating table 40; Drive disc 95 is integrally coupled with the rotation shaft of the motor (M) is provided in the guide hole 94 and provided with a roller pin 96 for reciprocating movement force to the reciprocating table 40 in an eccentric position Automatic bite polishing device characterized in that the configuration.