JP3017808U - Electrode rod polishing machine - Google Patents

Abstract

(57) [Abstract] [Purpose] Able to grind to the required tip angle according to the type of tungsten electrode rod such as TIG welding, and to easily tighten the grinding plate on the grinding rotating shaft. Is to [Structure] A polishing disk 9 having a predetermined diameter is mounted on a polishing rotary shaft 5 which is rotatable by a polishing motor-4, and an electrode rod 1 is inserted into an electrode rod guide 14 so that the polishing disk 9 has a predetermined angle. 1. An electrode rod polishing machine for polishing the tip end portion of the electrode rod 1 facing each other with the outer peripheral portion of the polishing disc 9 facing the electrode rod 1 so that the polishing angle of the polishing disc 9 can be varied over a predetermined range. The polishing machine 2 is formed so that the polishing table 9 can be tilted around the position of. Then, the inner diameter side is fixed to the polishing plate fixing screw 10 for screwing the polishing plate 9 to the polishing rotary shaft 5 portion, and the inner diameter side is fixed to the polishing plate fixing screw 10 to polish the outer diameter side into a conical shape with a gentle gradient. A thread loosening preventive material 28 made of an elastic material such as a thin steel material that comes into contact with the side surface of the board 9 is attached so that the polishing board fixing screw 10 can be easily tightened and loosened.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electrode rod polisher for a tungsten electrode rod or the like in the field of welding.

[0002]

[Prior art]

 Conventionally, as a polishing tool for a tungsten electrode rod for TIG welding or the like, it has been proposed to simply grind a tungsten electrode rod by facing the tungsten electrode rod to a diamond grinding stone for grinding as disclosed in Japanese Utility Model Laid-Open No. 2-415758. Has been done.

Further, as in Japanese Utility Model Laid-Open No. 4-60386, there is also proposed an electrode rod polishing machine for polishing the electrode rod by facing the electrode rod to a disk-shaped polishing plate.

[0004]

[Problems to be solved by the device]

 However, in these electrode rod grinders, the grinding stones and grinders are installed at a constant slanting polishing angle, and the tip of the electrode rod can always be polished only at a constant tip angle. It was impossible.

Further, in the above-mentioned electrode rod polishing machine, since the polishing plate is simply fastened to the motor drive shaft via the polishing plate holder with the fixing screw, the fixing screw is strongly tightened. However, it must be tightened firmly with a tool so that it will not come loose, and it takes time and effort to tighten and loosen the fixing screw when exchanging the polishing plate.

[0006]

[Means for Solving the Problems]

 The present invention has been made in view of the above points, and in order to solve the above problems, a polishing disk having a predetermined diameter is mounted on a polishing rotary shaft that can be rotationally driven by a polishing motor drive unit. Then, in the electrode rod polishing machine in which the electrode rod is inserted into the electrode rod guide and faces the polishing plate at a predetermined angle to polish the tip of the electrode rod, the polishing angle of the polishing plate is set within a predetermined range. A polishing machine in which the polishing machine is variably formed so that the polishing machine can be tilted around the position of the outer periphery of the polishing machine where the electrode bars face each other, and the polishing machine is mounted on the rotary shaft for polishing and screwed. Fix the inner diameter side of the fixing screw to the polishing plate fixing screw, and make the outer diameter side into a conical shape with a gentle gradient. Another object of the present invention is to provide an electrode rod polishing machine characterized by being worn.

[0007]

[Action]

 When the electrode rod polishing machine of the present invention is used, the polishing angle of the polishing plate can be varied over a predetermined range, and the polishing plate can be tilted around the position of the outer periphery of the polishing plate where the electrode bars face each other. By forming the machine, the polishing plate can be tilted to a required angle and the electrode rod can be polished to a required tip angle.

Further, an inner diameter side is fixed to a polishing plate fixing screw for fixing the polishing plate to the above rotating shaft for polishing, and an inner diameter side is fixed to a polishing plate fixing screw so that the outer diameter side is formed into a conical shape with a gentle gradient. By attaching a thin steel screw slack preventive material that comes into contact with the side surface, the screw slack preventive material can be tightened only by loosely tightening the polishing plate fixing screw to the rotary shaft for polishing with a tool. The polishing plate can be elastically pressed and tightened, and the polishing plate can be replaced easily and quickly.

Further, in particular, by setting the outer diameter dimension of the screw loosening prevention member so as to be within a predetermined distance from the polished portion of the electrode rod on the outer peripheral portion of the polishing plate, the tightening torque is increased through the screw loosening prevention member. In addition, the outer periphery of the screw slack prevention material can be used as a guide for setting the polishing position of the electrode rod facing the polishing plate, and can also serve as a safety stopper when overpolishing.

[0010] Furthermore, the position of the polishing plate can be adjusted according to the thickness of the polishing plate by inserting or removing a shim of 0.05, 0.10 or 0.20 mm in the rotating shaft for polishing. Even if the thickness of the polishing plate is different, the position of the polishing plate can be easily adjusted and the polishing machine can be assembled easily even if the thickness of the polishing plate is different. it can.

[0011]

【Example】

 Hereinafter, the present invention will be described based on embodiments. An embodiment of the present invention will be described below with reference to FIG. As shown in FIGS. 1 and 2, a polishing machine 2 for an electrode rod 1 has a polishing motor drive unit 4 integrated with a transmission mechanism in a case 3, and can be rotationally driven by the transmission mechanism. The polishing disk 9 is fitted to the polishing rotary shaft 5 via the holder-supporting tool 6, the polishing disk holder-7 and the shaft fitting ring 8, and the polishing disk fixing screw 10 is screwed to the polishing rotary shaft 5. Then, the polishing platen 9 is fixed, and the polishing platen 9 is rotationally driven at a predetermined rotation speed.

As shown in FIGS. 1 and 2, the polishing disk 9 axially attached to the polishing rotary shaft 5 has a diamond tip abrasive material mounted on the outer periphery thereof over a predetermined range. The bearing 13 is mounted on the upper surface 12 of the case 3 as shown in the figure so as to face the polishing portion 11 on the outer peripheral portion of the electrode 13, and the electrode rod 1 such as a tungsten electrode rod is attached to the bearing 13 via the electrode rod guide 14. It is designed such that it can be inserted and the tip thereof can be polished by the polishing plate 9.

A partition plate 15 of a predetermined size is disposed between the polishing plate 9 and the polishing motor drive unit 4 as shown in FIGS. 1 and 2, and a mounting member is provided on the back surface thereof. 16, the polishing motor drive unit 4 is integrally attached, and the shaft support portions 17 are projected forward to the upper portions of both sides of the partition plate 15, and the outer peripheral portion of the polishing platen 9 as shown in FIGS. The shaft support 17 is pivotally attached to the side surface 19 of the case 3 of the polishing machine 2 so that the point where the sharpened portion 18 of the electrode rod 1 is located becomes the center of rotation.

Then, as shown in FIG. 3A, a polishing angle adjusting tool screw 21 for varying the polishing angle is opened at a predetermined position of the side piece 20 projecting to the back side of the partition plate 15, and As shown in the drawing, three predetermined small locking holes 22 are radially formed in the peripheral portion of the shaft supporting portion 17 at radial intervals of 15 degrees.

Further, as shown in FIG. 3B, a shaft attachment portion 23 for pivotally supporting the shaft support portion 17 of the partition plate 15 is provided above the side surface 19 of the case 3 facing the partition plate 15. As shown in FIG. 2, the shaft support 17 is screwed and pivotally supported by the pivot support 24 of the nut, and the lower part is provided with an arcuate groove 25 having a predetermined radius as shown in FIG. 3B. A hole is opened and the shaft portion of the polishing angle adjusting tool 26 of the thumbscrew is inserted, and the partition plate 15 is tilted to a desired angle by operating the polishing angle adjusting tool 26 on the side surface 19 of the case 3 shown in FIG. I am able to roll.

Further, as shown in FIG. 3 (b), two small projections 27 are provided radially on the side surface 19 in a predetermined small projection 27 radially around the shaft mounting portion 23 at an angle interval of 15 degrees. Then, the partition plate 15 can be tilted at a predetermined angle by being fitted into the locking holes 22 of the partition plate 15 described above, and the polishing plate 9 is rotated about the position A-A as a rotation center 15, 20. , 25, 30, 35, 45, and 60 degrees, so that the polishing angle B can be changed stepwise.

As shown in FIGS. 1 and 2, the polishing plate 9 whose polishing angle can be changed is replaceably attached to the polishing rotary shaft 5 with the polishing plate fixing screw 10. As shown in FIGS. 4 (a) and 4 (b), the polishing plate fixing screw 10 has a disc-shaped screw loosening prevention member 28 of a predetermined size attached to its tightening side by caulking or the like.

The screw slack preventing material 28 is made of a steel material having elasticity such as carbon tool steel having a thickness of 0.5 to 0.8 mm, and is polished as shown in FIGS. 4 (a) and 4 (b). The inner diameter side is caulked and fixed to the board fixing screw 10 at a predetermined inclination angle to form a conical shape with a gentle slope.

Then, only by loosely tightening the polishing plate fixing screw 10 in the direction opposite to the rotating direction of the polishing plate 9, the polishing plate 9 is pressed by the outer peripheral portion having a large diameter (a force of about 2.5 times in the figure), The elastic force of the screw loosening prevention material 28 prevents the polishing plate fixing screw 10 from loosening, and can also be used as a mark for setting the polishing position of the electrode rod 1.

Further, a ring-shaped shim 29 as shown in FIGS. 5A and 5B is fitted between the holder-supporting tool 6 of the polishing rotary shaft 5 and the fitting ring 8 or the like. The tip of the electrode rod 1 can be easily adjusted to a predetermined position on the polishing disc 9 when the thickness of the polishing disc 9 is changed or the thickness of the electrode rod 1 is changed. .

The thickness of the shim 29 is usually 0.05, 0.10, 0.20 mm, and the position of the tip of the electrode rod 1 is about 0.1 to 0. It is adjustable so that it can be moved up / down by 4, 0.2-0.8, 0.4-1.5 mm.

Then, the polishing angle adjusting tool 26 on the side surface 19 of the case 3 is operated to fix the polishing plate 9 at a predetermined polishing angle and drive the rotation so that a desired polishing angle is obtained as shown in FIGS. When the electrode rod 1 having a large thickness is inserted into the electrode guide 14, the lower part of the electrode rod 1 abuts the polishing portion 11 of the polishing plate 9 and is polished to a predetermined tip angle.

When a large number of electrode rods 1 are polished and the polishing plate 9 is worn, the polishing plate fixing screw 10 is loosened and removed from the polishing rotary shaft 5, and the polishing plate 9 is replaced. At that time, since the loosening prevention material 28 is loosely tightened, it can be loosened and replaced easily by hand.

Further, since the screw 10 for fixing the polishing plate is tightened and the screw loosening prevention member 28 is pressed against the outer peripheral portion of the polishing platen 9 as shown in FIGS. 1 and 2, the outer peripheral portion of the screw loosening prevention member 28 is fixed. It is also possible to assemble the polishing machine 2 by using as a mark for setting the tip position of the electrode rod 1, or to fit the shim 29 to determine the mounting position of the polishing board 9. Further, when the electrode rod 1 is excessively pulled in by the polishing plate 9, it can also be used as a safety stopper by stopping by hitting the outer peripheral portion of the screw slack preventing material 28. It is also possible to engrave minute grooves in a radial pattern around the screw slack preventing material 28 to generate a warning sound for notification.

When it is desired to change the tip-polishing angle of the tip portion of the electrode rod 1, when the polishing-angle adjusting tool 26 is fixed at a desired angle, the polishing plate 9 is tilted via the partition plate 15 as shown by the alternate long and short dash line in FIG. It can be rotated and installed at a required inclination angle, and can be ground to a desired tip angle corresponding to the thickness of the electrode rod 1.

Since the polishing plate 9 is swung around the contact position of the sharp portion of the electrode rod 1, the polishing angle of the polishing plate 9 can be easily changed as described above, and the electrode rod 1 can be easily changed. 1 can be polished.

Furthermore, in the above-mentioned embodiment, since the electrode rod is vertically inserted and faces the polishing plate, the electrode rod can be smoothly dropped and polished, and the electrode rod can be inserted through the bearing. Since it is worn, the electrode rod smoothly rotates due to the rotation of the polishing plate, and the electrode rod can be polished cleanly and accurately without being biased.

In the above embodiment, the polishing of one electrode rod has been described, but the efficiency of the work can be improved by disposing the plurality of electrode rods facing each other around the polishing plate so that they can be simultaneously polished. It is possible to carry out an appropriate modified mode based on the gist of the present invention, such as increasing the height.

[0029]

[Effect of device]

 As described above, in the present invention, the polishing plate can be tilted to the required polishing angle, and the electrode rod can be polished to the required tip angle.

Further, even if the screw for fixing the polishing plate is not tightened strongly to the rotary shaft for polishing with a tool etc. but only loosely tightened, the polishing plate can be elastically pressed and tightened by the screw loosening prevention material. You can easily and swiftly change the polishing plate.

In particular, shaft support portions are provided on both upper sides of the partition plate that separates the polishing motor drive unit side and the polishing plate side, and the positions of the sharp portions of the electrode rods facing the outer peripheral portion of the polishing plate are set. By pivotally attaching the shaft support so that the polishing machine can be tilted as the center, even if the polishing machine is tilted at an appropriate polishing angle, just inserting the electrode rod into the electrode rod guide allows the same angle to be achieved. Can be polished.

Further, particularly, by setting the outer diameter of the screw loosening prevention material so as to be inside by a predetermined distance from the polishing portion of the electrode rod on the outer peripheral portion of the polishing plate, the outer peripheral portion of the screw loosening prevention material is polished. It can be used as a guide for setting the polishing position of the electrode rod facing to, and can also serve as a safety stopper when overpolishing.

Furthermore, by inserting / removing a shim of 0.05, 0.10 or 0.20 mm in the rotating shaft for polishing so that the position of the polishing plate can be adjusted according to the thickness of the polishing plate. Even if the thickness is different, the position of the polishing machine can be easily adjusted by inserting and removing the shim, and the polishing machine can be easily assembled.

The electrode rod guide is inserted into and removed from the bearing to form the electrode rod vertically so as to face the polishing disc, or the polishing disc faces the polishing disc so that a plurality of electrode rods can be polished. By disposing a plurality of electrode rod guides, the electrode rods can be polished cleanly and accurately and efficiently.

[Brief description of drawings]

FIG. 1 is a side sectional view of an embodiment of the present invention with a part omitted.

FIG. 2 is a front cross-sectional view of the above, with some parts omitted.

FIG. 3 is a side view of the partition plate and a side view of the case,

FIG. 4 is a side sectional view and a front view of the polishing plate fixing screw portion of the above.

FIG. 5 is a side sectional view and a front view of the same shim.

[Explanation of symbols]

1 ... Electrode rod 2 ... Polishing machine
3 ... Case 4 ... Polishing motor 5 ... Polishing rotary shaft
9 ... Polishing board 10 ... Polishing board fixing screw 13 ... Bearing
14 ... Electrode bar guide 15 ... Partition plate 18 ... Sharp part
28 ... Screw loosening prevention material 29 ... Shim

Claims (6)

[Scope of utility model registration request] 1. A polishing motor having a predetermined diameter is mounted on a polishing rotary shaft that can be driven to rotate by a polishing motor drive unit, and an electrode rod is inserted into an electrode rod guide to face the polishing disc at a predetermined angle. In an electrode rod polishing machine configured to polish the tip of the electrode rod by changing the polishing angle of the polishing plate over a predetermined range,
The polishing machine is formed so that the polishing machine can be tilted around the position of the outer peripheral portion of the polishing machine where the electrode rods face each other, and the polishing machine fixing screw for screwing the polishing machine to the rotary shaft for polishing has the inner diameter side Is fixed to the polishing plate fixing screw, and the outer diameter side is made into a conical shape with a gentle slope, and an elastic material screw loosening prevention member such as a thin steel member that abuts the side surface of the polishing plate is attached. Electrode rod polishing machine. 2. The upper side of a partition plate, which is divided into a polishing motor drive unit side and a polishing plate side, and integrally mounted with a polishing plate, a rotary shaft for polishing, and a polishing motor drive unit. 2. A shaft supporting portion is provided in a portion, and the shaft supporting portion is pivotally attached to a side wall portion of the polishing machine so that the polishing disk can be tilted about the position of the sharp portion of the electrode rod facing the outer peripheral portion of the polishing disk. Electrode rod polishing machine. 3. The electrode rod polishing machine according to claim 1, wherein the outer diameter of the screw slack preventing material is set so as to be within a predetermined distance from the polishing portion of the electrode rod on the outer peripheral portion of the polishing plate. 4. The polishing plate is prepared by inserting / removing a shim of 0.05, 0.10 or 0.20 mm in the rotary shaft for polishing so that the position of the polishing plate can be adjusted according to the thickness of the polishing plate. The electrode rod polishing machine according to any one of claims 1 to 3, wherein the electrode rod polishing machine is tightened with a polishing plate fixing screw. 5. The electrode rod polishing machine according to claim 1, wherein the electrode rod guide is inserted into and removed from a bearing so that the electrode rod is vertically opposed to the polishing plate. 6. The electrode rod polishing machine according to claim 1, wherein a plurality of electrode rod guides are arranged facing the polishing disc so that a plurality of electrode rods can be polished by the polishing disc.