JPS584349A - Method of polishing by cylindrical barrel polishing machine - Google Patents

Abstract

PURPOSE:To improve the finish of a polished surface, and to reduce the wear and tear of a polishing material when works are polished in a barrel tank consisting of a plate-like rotating tank and a cylindrical fixed tank using the polishing material, water and a compound, by setting the circumferential speed of the rotating tank to a prescribed value. CONSTITUTION:The works, the polishing material, the water and the compound are charged in the polishing tank consisting of the rotating tank 5 and the fixed tank 6, and the rotating tank 5 is rotated by a variable speed motor 10. At this time, the circumferential speed of the rotating tank 5 is set within the range of 90-130m/min. Thus the mass is pushed up against the inner circumferential wall of the fixed polishing tank 6 by the centrifugal force, and then drops toward the center of the rotating tank 5 due to the gravity. During the repetition of this procedure, the mass is swirled and polished. Since the circumferential speed is set at 90-130m/min, damage due to the striking between the works and the work and the polishing material can be suppressed, and therefore the finish is favorable, and scattering as well as damage of the polishing material can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention involves charging a workpiece, an abrasive material, water and a compound if necessary into a barrel tank, and setting the circumferential speed of the rotating tank to d0-/Jθ.
The present invention relates to a polishing method characterized in that the workpiece is effectively polished by rotating the material (hereinafter referred to as the mass) in a barrel at a speed of 1.5L/min to give a spiral motion.

, The conventional polishing method using a cylindrical barrel polishing machine has a circumferential speed of i3
It is carried out at θ~S0θm/min (e.g.
b-7+4; No. 79, Jikkosho 5! -9,1! ;79),
This type of polishing method is too high speed and causes dents and impressions due to collision between the workpiece and the polishing stone, making it impossible to process a good finished surface, and the mass scattering at too high a speed, which actually impairs the polishing ability. In addition to this, there were many drawbacks such as the abrasive material itself was often worn and damaged, and the equipment was noisy to drive. However, according to the present invention, it has not only improved all of the above-mentioned drawbacks, but also increased the polishing force by 5-2.0 times, resulting in significant savings in working time and expenses, making it ideal. We have successfully developed a polishing method based on new barrel polishing conditions.

The structure of the cylindrical barrel polishing machine used for carrying out the present invention will be explained below with reference to FIG. A bearing 3 into which the rotating shaft 2 is fitted is fixed on the base/top by a bearing support holder, and a dish-shaped rotating tank 5 is fixed to the upper end of the rotating shaft fitted into the bearing 3. , a pulley 7 is fixed to the lower end. The boolean is rotated by a variable speed motor 10K via a pulley 9 and a belt lPt. B is a cylindrical fixed polishing tank fixed to the base 1, etc. // is a fixed plate.

The polishing state within the apparatus described above will be explained as follows. After charging the workpiece, abrasive material, water and compound if necessary into the polishing amount consisting of the rotating tank S and the fixed polishing tank ≦, start the variable speed motor 10 and rotate the rotating tank 31', and the mass will be After being pushed up to the inner circumferential wall of the fixed polishing tank t by centrifugal force, the mass falls toward the center of the rotating tank by gravity, and is again drawn toward the fixed polishing tank by centrifugal force.

By repeating the movement of being pushed up, the mass circulates in a spiral flow motion and polishes the workpiece with the abrasive material.

In the above polishing, the circumferential speed of the conventional rotary tank S was changed to a high circumferential speed (i
300 fi 7 minutes) and in particular, the method using a polygonal columnar fixed tank is to push the mass as high as possible and collide with each piece of the polygonal columnar fixed tank to create a spiral mass flow. The material was kneaded in order to be dispersed in all directions, giving the illusion of fluidity, and research has shown that this condition was harmful and not beneficial to barrel polishing. As a result, the present invention has been completed. In other words, these mass flows are similar to grinding with a rotating barrel that is too fast, or dent grinding due to resonant vibration barrel conditions based on excessive amplitude and frequency, and the abrasive material and workpiece are individually dispersed and collide with each other. Therefore, under appropriate conditions, pressure polishing is not performed at all in a state where the abrasive material and the workpiece are in constant contact with each other, similar to the mass of a rotating barrel or centrifugal barrel, which is somewhat like being mixed in a clay muller. This is due to the fact that there is no such thing. In other words, the proper barrel polishing method is a method of polishing using relative movement between the abrasive and the workpiece.
It goes without saying that K requires a suitable relative motion condition, and this suitable condition is during a state of relative motion in which the abrasive and workpiece remain almost inseparable and move compressively against each other. According to the method of the present invention, the peripheral speed of rotation of the rotating tank is 90 to 130 @ 7 at the tip of the tank.
It has been experimentally found that the optimum value is α~ixm/min. In other words, if the circumferential speed is extremely low (0') 90 m/min), too much load will be placed on the motor, causing severe wear and tear on the motor, and since no spiral flow will occur, the amount of polishing will be small, resulting in increased polishing time and poor work efficiency. , 1301rL
Under larger conditions, the roughness is rougher, causing dents and impressions, resulting in excessive wear of the abrasive material, making it unprofitable.

Conditions for experiments 7 to ♂ are shown below.

*The equipment, abrasive material, and compound are all manufactured by Tipton Co., Ltd. *The test piece is a cylindrical test piece of 211 Inj and thickness rwta, and the surface has been uniformly finished with sandpaper +♂00. .

Next, Table 2 shows the experimental values for each experiment starting from Experiment 1.

Table of Contents (Experiment 1) *The amount of polishing is measured using a Shimadzu direct-reading balance type.

*Surface roughness is H-ma after measurement with Koita Institute Model 5E-3.
Displayed as d.

*The amount of wear is the amount obtained by subtracting the amount of mold after polishing from the weight of the polished cocoon of the abrasive material.

It is effective, and the smaller the value, the better the polishing efficiency.

Same as below.

Table 9 (Experiment t) Table 9 (Experiment t) Among the above tables, Table 2. If J, j, and 7 are graphed as shown in FIGS. 7 to 7, the relationship between the one-peripheral speed and each throughput value can be seen at a glance, and the effects of the present invention can be confirmed.

As is clear from the above, the polishing amount is the circumferential speed l10rlL1
It reaches its maximum around 1 minute, and the conventional method (tso-soomA
+) is /,j-2,0 times. Also, the presence or absence of dents and indentations can be determined based on the roughness of the machined surface of the test piece, and it is clear that the method under the conditions of the present invention is good in all cases, and the abrasive wear rate is s' = sharply reduced to M.

In other words, the polishing efficiency is significantly improved and moreover, precise finishing is possible.

Experiment/-1 was conducted in a round tank, but it is clear that similar results can be obtained in a polygonal tank.

[Brief explanation of drawings]

Figure 1 is a graph of Table C, Figure 2 is a graph of Table 3, Figure 3 is a graph of Table 4, and Figure D is a graph of Table 2. Figure S is a partial cross-section of the grinding machine used to carry out the present invention. l... Base - Rotating shaft 3... Bearing base - Bearing support S... Rotating tank T... Fixed Polishing tank 2・
・Pulley ♂＠Curious Belt 9・Curious Pulley 10・
・Variable speed motor//・Applicant for fixed plate rugs, Shikishima Tipton Co., Ltd. Agent Tadashi Suzuki 2 Figure 4 Procedural amendment 1, Case description Showa Audience Tatami Tatami Request No. fJ#? No. 4/・Relationship to the incident: Tatami Kōkōrito 4, Agent (Postal code: 16o) Address: 29 Shinanomachi, Shinjuku-ku, Tokyo, Tokumei Building, Jinna TV...'lk
,・V, Yu 1. ), -1,. J': II appendix - 1 rice cake (1) Revised IE@written text (4)
Correction page 111 4 rules of circle - face writing - AWIym intestinal machine's research machine 141 range of proverbs ■ 1 Unique cylindrical polisher - circle with a plate-like rotation at the bottom - inside the barrel polisher The object to be worked, the abrasive material, the abrasive material, the Kyo, and Hy A, the righteous person, and the above-mentioned -turning IIaL, the above-mentioned -person in a spiral! <. Based on the barrel polishing method in which the workpiece is polished with an abrasive material,
A barrel polishing method characterized in that the circumferential speed of the above-mentioned tip is set to 10 凰 to 1 JO 凰. A method for sharpening a cylindrical Vk polishing machine described in the range of a tatami car with a circumferential speed of J WAk- from 100 to 11C. S Nfl #) Details - msam Book 111 - is in Paris ^ *, Sa works, abrasive materials, shavings d water, and nu pounds are righteous, and 11 changes of horse shielding are wholesale ~ isow A/min. This invention relates to a polishing method characterized in that a person in a barrel (hereinafter referred to as "mass") is given a spiral motion by turning the workpiece once every five times to polish the workpiece to an effective sharpness. Conventional cylindrical barrel polishing machine in 1! ! The suspended polishing method is performed at peripheral speeds of /1a~#0# (e.g., special public I8 axis-W4TT No., Jikko Shohyoki-917). Due to the collision between the workpiece and the polishing stone, dents and impressions were generated, which not only made it impossible to finish the process, but also caused the mass to fly away at too high a speed, which actually weakened the polishing ability. In addition to thorough polishing, there were many drawbacks such as a lot of wear and damage on the polishing body (and the noise caused by the drive in the polishing position). However, according to the owner Ili, all of the above drawbacks were modified. Not only did I get a lot of polishing work, but I was able to double the polishing time, so it was hot, so I wasted a lot of time and money, and I was disappointed with the new barrel polishing conditions. The structure of the superimposed cylindrical barrel grinding machine is as follows according to III. 1 rotation shaft - N
A disk-shaped rotating shaft 1 is fixed to the upper end of the rotary shaft 1, and an "f-1-?" is fixed to the lower end.
9 is variable mountain range -1-/Pulley 1.4 rut from DK ##
1: 1 transfer through. 4 is a base/@KWa'R-@ polished cylinder*1iaii polished wood. /7 is a fixed plate. IS is a small circular anchor glue attached to the center of the lower center of the I, which removes a large cylinder that can prevent the infiltration of conventional trout.When this protrusion 11 is provided, it prevents the infiltration of trout. In order to make it easier, in this case, the speed of the masses is much more uniform than before, so the collision of one square that falls concentrated in the center will be buffered and will hardly cause a dent. IIJ Consisting of IIl@ll# and constant polishing w4 which are as follows 1
The workpiece, abrasive material, and water are essential for the amount of polishing required.A9
After increasing 1VV, fibrillate the variable chain cage-#-10 and rotate it fixedly-#t-■ When it is rotated, the mass is fixed by centrifugal force and polished-6
After being pushed up to the inner circumference of. Due to gravity, the square hangs down to the center of the tank, and due to the centripetal force, the square is 1I5ii! Polishing-kl! :, #! lke (pull)
Gathered. By repeating the process of being pushed up, the mass circulates in a spiral flow motion and polishes the workpiece with the abrasive material. In the above polishing, I! The adoption of a high circumferential speed (/!a ~ 200 straw/min) of the horse train of the recent transfer Ilj and the use of a polygonal column-shaped fixing tank on the tatami mat enable the mass to be pushed up to a high place and the polygonal column-shaped This was because the support plate K111 of the fixed tank could be raised to disperse the spiral mass flow in the Δ direction. This dispersed fluid mass has been sufficiently refined in the conventional manner to create the visual illusion that it is flowing, and this state is of no benefit to barrel polishing. As a result of the research, it is clear that Hata Zhong was the one who completed the K-1 member. +S These mass flows are going too quickly.
Approximate to dent polishing with 4-turn pallet polishing or vibration barrel conditions with excessive resonance and vibration, the abrasive material and workpiece are individually dispersed and collide, so under appropriate conditions. Pressure polishing is carried out in a state in which the workpiece is in constant contact with the abrasive material kneaded in a clay kneading machine. This is due to something like this. Since the proper barrel polishing method is a method of polishing rather than moving the polishing material and the object relative to each other, it is obvious that the condition for proper shelf-to-gravel movement is due to membership fees. The process is a process in which the abrasive material and the material are kept almost inseparable and moved in a relatively recessed layer in one phase, and by the method of overlapping. The circumferential speed of one rotation of a rolling paddle is 1 at the tip of the paddle.
It has been experimentally found that 90-/Jewt/min for 1# and 1Jew/min for Kit#-/J#/min at the farthest distance. ′)
When setting the low frequency cutoff (oS wholesale speed/min) to K9Jl, the load is applied to the peaker, and the #1 thread of the #1 thread is intense, and the amount of polishing is small because @ swirl flow does not occur. Because of kudzu, the polishing time increases and the polishing time increases. In other words, under extremely hot conditions, the roughness is less than that (produced pressurized phlegm in the dents and excessive wear of the abrasive material, making it unprofitable). 1116 experiments/-1 are shown. *The equipment, abrasive material, and compound are all manufactured by Shikishima Chip ToyJl Co., Ltd. *The shape of the test piece is an 8-pillar temperature test piece made by U, Italy, and Atsushi. The sandpaper◆It1011C''clI surface has been uniformly finished.Next, if you display each experimental value in order in Experiment 1.It is as shown in IIJ.Table J (Experiment 1) *Amount of polishing - Settled with a direct indicator large scale LJI made by Kou Karasu Tsushizakusho.
Displayed in 111JII. *The amount of lid is the weight of the abrasive material before polishing minus the weight of the heavy lid after polishing. Mlll wear amount * is 11"1, which means that when polishing 711$1', the abrasive material or one company's cutting center amount is one, which is effective for the layer efficiency ratio IIR, and 11 is the small 111 machine calendar time. is good. The following 1 is not good. Table 9 (Experiment J) *4 cvusz> Table 9 (Experiment t) If you graph IIJ, J, A, and De in the above !II, it will be as shown in #sl■ to Figure 3. The relationship between the strength and each woodcutter value is clear at a glance, and the effect of the present invention can be confirmed.As is clear from the above, the amount of polishing is peripheral speed/10IL7%
It reached its maximum near the I! Rice method (110-5ooy minutes) I~ko, agl. In addition, it is clear that the method described in 1 is better under the conditions of the present invention, whether it is laid down with no dents or indentations on the processed surface of the test piece, and WR. The amount of wear of the abrasive material is i to -iK. That is, the polishing efficiency is significantly improved, and moreover, precise finishing is possible. In fact @7~, the test was carried out in a round tank, but it is clear that the same results can be obtained with a large number of denominations. 4 Allfillff Mino simple diagram is a graph of table-, and Figure 2 is a graph of table J. Figure 3 is a graph of Table 1, and Figure 3 is a graph of Table 2. Jljll is the number next to the barrel laboratory used for carrying out the present invention.
prr+n. /e・Base C・Rotating axis jaQ bearing tei @ tube bearing support stand!・・u1 paddle 4-・constant-polishing @ 7
m @7-Lee jes belt de e111-Lee
10...Variable speed motor//I/Fixed @lco...
Projection Patent Applicant: Shikishima Chin Co., Ltd. 1-Ton Daifuner Figure 1 Circumference Speed (m/min) Figure 2 Circumference [(m/min) Figure 3 Circumference (m, 4) Figure 4 Circumference Speed (m/min) Procedural Amendment July 30, 1980 Director General of the Patent Office Kazuo Wakasugi 1964 Patent Application No. Woko S7A/2, Title of Invention ``1''. Polishing of cylindrical barrel polishing machine Method 4, Agent (zip code 160) Address: Tokumei Building, 29 Shinanomachi, Shinjuku-ku, Tokyo Showa year
Date 7 Contents of the amendment (1) The phrase "1 modification on page//line of the specification" is corrected to "improvement." (j) In the λ line from the bottom of the polishing amount section on page g of the specification,
x, J and y; r: [correct as s, bJ. (3) In the first line above the wear amount section of Table S on page 9 of the specification, “Coq
oJ is corrected to -gsJ. (lI) Section 5 @ is corrected according to the separate diagram. List of attached documents

Claims (1)

[Claims] 1. A workpiece and an abrasive material are placed in a cylindrical barrel polishing machine that has a dish-shaped rotating tank at the bottom of a fixed cylindrical polishing tank! ! In the barrel polishing method, in which water and compound are charged and the rotary tank is rotated, the package is circulated in a spiral, and the workpiece is polished with an abrasive, the circumferential speed of the rotary tank is 9 per minute
A barrel polishing method characterized in that the length is 0ML-730m. λ The circumferential speed of the rotating tank is 100 fi −/20 @
A polishing method for a cylindrical barrel polishing machine according to claim 1.