KR880002333B1 - Hoder device for dorill grinder - Google Patents

Abstract

This drill grinder holder device for drill grinder consists of (i) a table part including the fixing table (7) and the moving table (15) sliding to the right and left or to the front and rear, (ii) a bearing part consisting of the automatic adjusting spherical bearing (33) and the handling lever (37) inserted in the bearing (33), (iii) a holder part containing the holder shaft (49) holding the chuck (51) for supporting the drill, and the basic shaft (63) positioned at the front of the housing (45) for the holder shaft (49). Notice marks (65) are carved on the end face of the basic shaft (63) (iv). A dial ring (73) is inserted into the drill (47) which rotates concentrically with the drill.

Description

Holder devices for drilling polishing

1 is an overall perspective view of the present invention.

2 is a left and right side view showing the same mounting state.

3 is a rear view of the present invention.

4 is a cross-sectional view showing the structure around the axis of the holder shaft of the present invention.

Fig. 5 is a sectional view showing the main parts of the method for ejecting and adjusting the rotation stop position (angle) of the drill according to the present invention.

6 (a) and 6 (b) are sectional views showing the angle adjustment state in the case of the same trill.

7 is an end perspective view showing the type of the blade structure of the drill.

* Explanation of symbols for main parts of the drawings

1: grinding wheel 3: grinder table

5: bolt 7: fixed table

9: side table 11: longitudinal table

13: rotating table 15: movable table

17: stone platform 19: terminal board

21: pin 23: single plate

25: adjusting screw 27: split

29: set bolt 31: bearing part

33: axis number 35: Vis

37: operation lever 39: horizontal angle scale

41,43: Shoring 44: Support shaft

45 housing 46 keyway

47: drill 48: positioning ring

49: holder shaft 50: handle ring

51: shank 52: positioning key

53: stopper pin 54: key plate

55: mounting plate 57: angle adjusting screw

59: angle scale 61: instructions

63: reference axis 65: reference scale

67: Balance weight 69: Set screw

71: through hole 73: diamond ring

75: push bolt 77: scale

[Industrial use]

TECHNICAL FIELD This invention relates to the holder apparatus for drill grinding | polishing used in grinding | polishing of blades, such as a drill which drills for ironsmiths or other things for a woodwork, a drill-type milling cutter.

[Prior art]

In general, the regrinding of the blades of various drills, for example, as shown in FIG. 7, has a precise center of the cutting knife and an inclination angle (eg, cutting surface angle, evacuation angle, thinning angle, etc.) and length of each part. It is necessary to maintain symmetry, and the polishing has been mainly performed by the human hand and the operator's sense. In addition, the type of grinding surface is single, simple plane, or when rounding the round surface to match the grinding wheel main surface, the angle and position of the drill should be determined and pressed into the grinding wheel to maintain the drill at a constant angle. A simple drill holder device was used.

[Problem solving the invention]

However, the grinding by conventional human hands is not only inefficient due to the skill of the skilled worker, but also required for a drill used in a multi-sided ball, etc., which simultaneously use a plurality of standardized drills. Uniformity of dimensions and cutting performance is poor, and the inconvenience of having to use drills having non-uniform quality performances was inconvenient.

On the other hand, in order to mechanize the grinding of the blade of the drill, it must be equipped with various control devices, so that it becomes a large machine.In the manufacturing process of the drill, it is not suitable for regrinding at the use site, and the conventional regrinding machine is a simple blade as described. In the case of shapes only, there was no drill holder for regrinding complex blades.

[Means to solve the problem]

In the drill polishing holder device of the present invention, the movable table 15 formed by polymerizing the horizontal table 9 and the longitudinal table 11 that slides left, right, or forward and backward on the fixed table 7 is formed, and the upper portion of the fixed table 7 and the movable table 15 is formed. At the outer circumferential position, bearing parts 31 and 31 fitted with automatic adjustment shafts 33 made of spherical shaft shafts or the like are respectively rotated, and each of the automatic adjustment shafts 33 is operated so as to slide in the thrust direction in either direction. Lever 37 is fitted and rotates the housing 45 through the holder shaft 49, which rotates the support 43 over the movable table and the holder axis 49 fitted with the shank 51 supporting the drill 47 at the front end in an inclined direction to the support 43. It freely accumulates, and in front of the housing 45 protrudes the reference shaft 63 attached with a reference scale 65 on the front end surface and penetrates the drill concentrically with the drill. Is one characterized by forming a diamond ring 73 is set.

[Action]

In the present invention, the fixing table 7 is mounted at a predetermined position on the polishing machine table 6, and the salt drill 47 is checked and supported on the shank 51. In the horizontal table 9 and the vertical table 11, when the operating lever 37 is swung, the operating lever 37 is actuated at the position of the automatic adjustment shaft 33 attached to each table 9, 11, and one axis point slides to expand and contract. 11 slides laterally or longitudinally or separately.

The holder shaft 49 penetrates through the housing 45 and inclines forward like the housing 45 or stands up and rotates in an upright direction, and acts to press-fit the grindstone 1 while rotating the drill 47 at its tip, and the blade angle of the drill in the forward rotation stop position. Is determined.

In addition, when the dial 47, which is inserted into the outer circumference of the drill 47, is turned to determine the stop position of the drill 47 while corresponding to the reference scale 65, it is polished at that position and then stopped at the corresponding scale position when the other position is polished. Each polishing position can be polished accurately.

EXAMPLE

1 to 4 show a drill grinding holder device, which is mounted on the grinding table 3 bearing the grinding wheel 1 by bolts 5 or the like.

At the bottom of the device, a fixed table 7 mounted by the bolt 5 is formed, and on the fixed table 7, a movable table 15 is formed, in which horizontal tables 9, longitudinal tables 11, pivoting tables 13, etc., which slide in the horizontal direction are gradually stacked. have. The fixed table 7 and the side table 9 are transverse protrusions 17 in the transverse direction, the side table 9 is the transverse protrusions 17 in the transverse direction, and the side tables 9 and the longitudinal table 11 are the longitudinal protrusions 19 in the longitudinal direction. On the back, the longitudinal protrusions 19 facing the left, right or front and rear directions are respectively joined by a sliding material in the left, right or front and rear directions, respectively, and the pivot table 13 is placed on a plane above the longitudinal table 11 and squeezed into a pin 21 with a vertical shear. It is a mechanism that adjusts the rotation in the horizontal direction.

Single plates 23 are installed at the left and right ends of the horizontal table 9 and the rear ends of the longitudinal tables 11, respectively, to form a stopper for the slides of the respective tables, and in the center of each end plate 23, an adjustment screw 25 penetrates and is screwed and It is a structure that can adjust the amount of slides. The rotating table 13 is formed with an arc-shaped slit 27 centering on the pin 21, and a set bolt 29 made of a hinge, etc., is penetrated and screwed onto the longitudinal table 11, so that the horizontal table of the rotating table 13 is fixed. The angle of direction is set. On the left side of the fixed table 7 and the longitudinal table 11, the bearing 31 having a thrust axis in the thrust direction has a screw 35 so as to protrude with its spherical bearing or a drum-type roller bearing fitted therein in the thrust direction. The automatic adjustment shafts 33 and 33 are concentric with the shaft center in the vertical direction.

The lower end of the rod-shaped device lever 37 is fitted to each of the shafts 33, of which the upper shaft 33 is inserted so that the lever 37 does not slide in the thrust direction, and the lower shaft 33 has the lever 35 so as to slide in the thrust direction. It is in opposition. Therefore, if the upper end of the lever 37 is rotated back and forth, left and right, or any other direction, the longitudinal movement of the lever 37 causes the longitudinal table 11 or the horizontal table 9, or both tables to slide in the front and rear directions or the left and right directions together. The location is arbitrary.

The rear end of the pivot table 13 forms a round along an arc around the pin 21. Here, the horizontal angle scale 39 is laid out, and the angle of rotation of the rotary table 13 corresponds to the reference scale (not shown) laid out on the longitudinal table 11. It has a structure that can read.

At the left and right ends of the rear position on the pivot table 13, two pillars 41,43 are mounted so as to stand up against each other, and between the pillars 41,43, a hollow rectangular parallelepiped housing 45 is pivoted by the pivot axis 44 as a rotational material. The holder shaft 49 through which the drill 47 was inserted and held is rotatably held by the rotating material, and the drill 47 is fixedly tightened to enable the adjustment of the protruding length through the shearing stroke 51 of the holder shaft 49.

The shank 51 is a ring-shaped lock knit 56 screwed to the outer circumference of the tip of a normal holder shaft 49, a thrust ring 60 which is positioned and fitted with a rotating material inside the front end thereof, and forms a tapered surface whose inner circumferential surface is widened backward. The front outer periphery forms a tapered surface suitable for the inner surface of the thrust ring 60, and a rib-like connection 58 or the like having a tapered surface suitable for the tapered surface whose rear portion is extended toward the front of the front inner peripheral of the holder shaft 49.

This connection 58 forms a taper in which the front outer circumference and the rear outer circumference face oppositely as described above, and a plurality of split grooves 58a are alternately cut from the front and the rear in the circumferential wall thereof, and the rear end is inserted into the holder shaft 49 to lock the lock knit 56. When the screw is tightened, the inner diameter of the connection 58 is uniformly contracted and relaxed by pressure by the respective inner circumferential surfaces of the lock knit 56 and the holder shaft 49, thereby expanding. When the drill 47 is operated by inserting the drill 47 into the connection 58 by this action, the drill 47 is tightened uniformly around the entire circumference regardless of the grip position, and the shaft center is also determined.

The holder shaft 49 is rotatably rotated by bearings 62 and 62 at the front and rear ends of the housing 45, and the rear end of the drill 47, which is inserted into the inside, is fitted with the length adjusting screw 64 screwed in the inner center thereof. It is a mechanism for adjusting the length with this.

On the protruding end of the holder shaft 49 protruding from the rear end of the housing 45, the positioning ring 48, each of which has a key groove 46 in the symmetrical position, and the handle ring 50 for rotating the holder shaft 49 are integrally fixed. 45 At the center of the rear end of the upper surface, a rake-type positioning key 52, which is attached to the keyway 46, to be engaged with the release material, is retracted back and forth with a swivel pivot material, and 54 is a key plate mounted on the housing to retract the positioning key 52. The magnet 42 may be fixed on the upper surface thereof so as to maintain the upright position of the positioning key 52.

The housing 45 has a rotation angle of at least 90 degrees about the axis 44, and rotates from an upright state to a horizontally forward state. The stopper pin 53 protrudes from the rear end of the right side of the housing 45, and the stopper pin 53 comes into contact with the rear side of the right post 43 to stop while the housing 45 is upright. At the front end of the right side of the housing 45, the columnar mounting plate 55 is fixedly installed in the up and down direction, and at the bottom thereof, the angle adjusting screw 57 is screwed so that the tip protrudes rearward, and the rear protruding end or the mounting plate 55 of the angle adjusting screw 57 is installed. The housing 45 stops in an inclined front position as the rear surface of the back reaches the front surface of the post 43. Therefore, by adjusting the angle adjusting screw 57, the front tilt angles of the housing 45 and the holder shaft 49 are adjusted.

In addition, the rotation angle of the housing 45 by the adjustment screw 57 is adjusted while viewing the indicated angle by the angle scale plate 59 fixed to the inner surface of the support 41 and the guide 61 fixed upright on the upper left center of the upper surface of the housing 45. It is a mechanism.

At the same height position of the holder shaft 49 in the front of the mounting plate 55, the reference shaft 63 is formed to be parallel to the holder shaft 49. At the center of the front face of the reference shaft 63, the reference scale 65 in the horizontal direction is imprinted. On the shaft, a balance weight 67 on the sleeve is fitted with a slide material, and on the main surface, it is set at an arbitrary position by a screw 69 that is screwed in. On the other hand, the drill 47 protruding from the shank 51 with the regular dimension is provided with a dialing 73 having an equiangular scale 77 with a rotational symmetry on the upper surface of the drill hole 71 in the center, and a dialing 73 through the rear wall of the dialing 73. The push button 75 is screwed two times in the symmetrical position towards the centripetal direction, and the dial 47 is drilled and the holder 47 is press-contacted or contacted to the drill 47 having a rotationally symmetrical cross section with the push button 75 as shown in FIG. It has a mechanism for holding on the axis of axis 49.

The cross section of the dialing 73 and the reference axis 63 inclined and set in the drill 47 are substantially coplanar, and the scale 77 corresponds to the reference line 55. And set the front, rear, left and right positions of the holder device corresponding to the grindstone 1 and the angles of the left and right and up and down directions of the holder shaft 49 in accordance with the angles of several kinds of grinding edges in the two symmetrical directions of various drills having a symmetrical or rotationally symmetrical cross section do. At this time, it adjusts and sets to the left and right rotation angle of the rotation table 13 according to a material.

Subsequently, when the rotation angle of the drill 47 is set, the correspondence between the reference line 55 and the graduation 77 is determined, and at that position, the rotation angle with respect to the holder axis 49 of the handle ring 50 and the positioning ring 48 is determined and the positioning key 52 is moved to the keyway 46. Set it and set the rotation angle of the drill 47. Subsequently, while the housing 45 stands up, the front end of the drill 47 is pressed against the main surface of the grindstone 1 during sequential rotation while the horizontal table 9 and the longitudinal table 11 are moved left and right with the screw lever 37. At this time, the drill 47 naturally lies forward by the weight of the housing 45 or the balance weight 67, and stops at an angle set by the angle adjusting screw 57 to finish polishing of one abrasive lead.

In the following process, the positioning key 52 is released, the drill 47 and the holder shaft 49 are rotated by 180 degrees, the positioning key 52 is set to the other key groove 46, and the polishing is performed again as described above. Sliding adjustment of the movable table is usually unnecessary. In this case, when the cross section and the blade are two-point symmetrical, polishing of the polished surface is finished.

In addition to the above usages, it is also possible to determine the position and orientation of the drill 47 and press-drill the drill 47 while rocking the housing 45 on the grinding wheel 1 from top to bottom or bottom to top.

If the drill 47 has a spiral structure such as a triangular, hexagonal or three-blade drill, it is preferable to prepare a dialing 73 in three directions corresponding to the push bolt 75. In the case of three, the rotational symmetry of the dialing 73 of the dialing 73 is preferably divided into three parts, and the keyway 46 of the positioning ring 48 is preferably arranged in an equally divided position. .

In addition, the forward tilting action of the housing 45 at the time of drill grinding is not only dependent on the load of the balance weight 67 as shown in the example, but also by attaching a weak annular spring to the support shaft 44, or the lower end of the mounting plate 55 and the upper surface of the movable table 15. A weak coil spring (all of which is not shown) or the like may be installed in between to use the restoring action by the spring.

FIG. 6 shows a state diagram when the dialing 73 is set for the drill of the equilibrium cross section and the cross section as shown in FIG. 7 (c) and FIG. 7 (d), and the scale of the predetermined angle is read. All of them have a rotationally symmetrical cross section in that direction, so that the graduation 77 and the keyway and the push bolt 75 all have line symmetry or rotation symmetry in that direction.

[Effects of the Invention]

This invention exhibits the following specific effects by being comprised as mentioned above.

(1) The vertical and horizontal tables 11 and 9 on the movable table 15 can be operated vertically and horizontally by a single operation of one operating lever 37, which makes the drill positioning very quick and simple.

(2) The rotation angle of the housing 45 and the holder shaft 49 can be freely determined to obtain an arbitrary polishing angle, and can be rotated from the horizontal direction to the upright downward direction, so that the drill can be easily peeled off and the rotation angle can be adjusted. In addition, it is possible to precisely polish the blade shape.

(3) The turning angle at the time of drill grinding is determined by the dialing 73 and the reference axis 63, etc., and one drill can be set by one angle, especially the same type of grinding. Becomes possible. That is, by setting the angle once, the same thickness drills of the same length can be polished in succession, so that the work efficiency is good and the refinishing finish is uniform.

(4) The whole device is a compact device that can be operated by mechanical operation and check of scale, so it does not require complicated control device or mechanism by electric system or hydraulic system. If the blade shape is also determined, it can be polished relatively easily and accurately.

Claims (1)

A movable table 15 formed by polymerizing a horizontal table 9 and a longitudinal table 11 which slides left and right or back and forth on the fixed table 7 is formed, and an upper portion of the fixed table 7 and the movable table 15 is formed. At the outer circumferential position, the bearing parts 31 and 31 which fit the automatic adjustment bearing 33 made of spherical bearings are respectively protruded, and each of the automatic adjustment bearing 33 has an operating lever to slide in the thrust direction. The housing 45 which penetrated the holder shaft 49 which fitted 37, the support | pillar 43 over a movable table, and fitted the shank 51 which supports the drill 47 in the front end with the rotation material is fitted. ) Is supported on the support 43 by a rotational material in a direction inclined forward, and in front of the housing 45, the reference shaft 63 is attached to the front end face with a reference scale 65 attached thereto. Insert the dialing (73) to be set concentrically with this drill. Drill grinding holder device for hayeoseo castle.

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