JP2005103663A - Method for attaching/detaching barrel to/from barrel grinder and mounting barrel for barrel grinder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and quickly attach/detach a barrel without difficulties, and to prevent the occurrence of ratting noise during grinding. <P>SOLUTION: The mounting barrel is used for a barrel grinder which is composed of a case substrate 31 having a rotary shaft 32, a barrel case 38 composed of a cone spring 33, which is provided to the case substrate 31 and presses the mounted barrel 39 to the escaping direction, and a leaf spring 36, which is similarly provided to the case substrate 31 and suppresses the escape of the mounted barrel 39, and to which a suppressing piece 37 for pressing the barrel 39 to the inside is mounted, and the barrel 39 which is mounted to the barrel case 38 and has an engaging part 42 engaged with the suppressing piece 37. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method of attaching and detaching a barrel to and from a barrel polishing machine that is used in the field of barrel polishing and can easily and quickly attach and detach the barrel, and a barrel for mounting the barrel polishing machine.

  As shown in FIGS. 9 to 11, the conventional mounting barrel (see Japanese Examined Patent Publication No. 46-1960) pushes the barrel 8 of FIG. 10 through the mouth of the barrel case 1 of FIG. , 9 ′ rotated until the barrels 4 abut on the protrusions 4, 5 of the barrel case, and were latched in the barrel case 1 by the reaction force of the spring 6. Specifically, as shown in FIG. 11, a notch portion 11 is provided at the outer wall end of the barrel 8, and when the barrel 8 is pushed in, the notch portion 11 and the protrusions 4 and 5 are slid. Subsequently, when the bottom of the barrel 8 hits the bottom of the barrel case 1, the barrel is rotated about 15 degrees and the flanges 9, 9 ′ provided on the outer wall of the barrel 8 and the protrusions 4, 5 provided on the inner wall of the barrel case 1. And abut. When the pushing force was released, the barrel 8 was pushed out by the reaction force of the spring 6, and the flanges 9, 9 ′ and the projections 4, 5 were latched, so that the barrel 8 was securely held in the barrel case 1.

  However, the conventional mounting barrel has the following problems. That is, the operator needs to hold the barrel 8 by hand and push it into the barrel case 1 and then rotate about 15 degrees while maintaining the pushing force. At this time, since the reaction force of the spring 6 is considerably large, the mounting work is a heavy burden on the operator. Similarly, when the barrel polishing is finished and the barrel 8 is taken out, the operation opposite to that described above is performed, so that considerable labor is required. Normally, the barrel grinder using this mounting barrel has four barrel cases at equal intervals on the revolving turret, so the operator must repeat the above detaching operation four times, and the burden is even greater. It was a thing.

The barrel 8 is latched by the projections 4 and 5 provided at three locations of the barrel case and the flange portions 9 and 9 'of the barrel. In order to be able to hook these, it is necessary to have a slight loose-fitting structure. On the other hand, during barrel polishing, a swinging action is generated in the radial direction of the barrel due to the rotation and revolution action of the polishing machine. For this reason, the barrel 8 may vibrate slightly in the barrel case 1 to generate a rattling sound. Due to the repeated slight vibrations, the protrusions 4 and 5 and the flanges 9 and 9 'are sometimes worn away, and the barrel 8 and the barrel case 1 have to be replaced.
Japanese Patent Publication No.46-1960

  As described above, the problem to be solved by the present invention is that it is easy and quick to attach and detach the barrel, and that no rattling noise is generated during polishing.

  In order to solve the above problems, the method according to claim 1 is a method of attaching and detaching a barrel to and from a barrel polishing machine in which a plurality of rotatable barrel cases are attached to a revolving turret, wherein the barrel is attached to the barrel case. When mounting, when the barrel is pushed in by engaging the elastic member with a restraining piece provided in the barrel case and the engaging portion provided at the opposite position of the barrel by pushing the barrel, and removing the barrel from the barrel case Is characterized in that the barrel is pushed once to release the engagement, and then the barrel is rotated to separate the engagement portion of the barrel from the release position and take out the barrel.

Next, the invention according to claim 2 is a case substrate having a rotating shaft, an elastic body for pressing a barrel mounted on the case substrate in the escape direction, and also mounted on the case substrate. A barrel case comprising an elastic member with a restraining piece that restrains the barrel from escaping and presses the barrel inward, and a barrel having an engaging portion that is attached to the barrel case and engages with the restraining piece. It is characterized by that. According to a third aspect of the present invention, the elastic member of the elastic member with a restraining piece is a leaf spring.

  According to the first and second aspects of the invention, the mounting of the barrel can be performed by “1. Just pushing the barrel”. The barrel can be taken out by “2. Pressing the barrel once” and “3. Rotating while maintaining the pressing”, and can be attached and detached in all three steps. On the other hand, according to the prior art, the barrel is mounted by “1. Pushing the barrel” “2. After that, keep pushing and rotating”, and taking out the barrel is “3. Pushing the barrel” “4. Pushing after that” All the four steps of “maintaining and rotating” are required, and there is an effect that the attaching / detaching is quicker and the work load can be reduced as compared with the prior art.

Further, according to the invention, the elastic member with the restraining piece is in close contact with the engaging portion of the barrel, and the barrel is always pressed inward even during polishing, so the barrel does not vibrate slightly and no rattling sound is generated. . Furthermore, according to the invention of claim 3, since the elastic member of the elastic member with the restraining piece is a leaf spring, the escape of the barrel can be restrained with a simple structure and also has an inward pressing force. The objective can be fully achieved.

  The structure of a barrel for barrel polishing machine used in the present invention will be described with reference to the drawings. The case substrate 31 shown in FIG. 1 is provided with a rotating shaft 32 and is coupled to a drive unit of a barrel polishing machine (not shown). A plurality of case substrates 31 are arranged at equal intervals on the circumference of a turret (not shown) that revolves in the barrel polishing machine, and the rotary shaft 32 can rotate via a bearing (not shown). Usually, four case substrates are arranged on the turret. A conical spring 33 (corresponding to the elastic body of claim 2) for pressing a later-described barrel 39 in the escape direction is attached to the upper surface of the case substrate 31 with bolts. In addition, six support posts 34 are planted by bolts on the periphery of the upper surface of the case substrate 31, and a guide ring 35 is attached to the upper end of the case substrate 31 for guiding when the barrel is attached / detached. Further, three L-shaped leaf springs 36 (corresponding to the elastic member of the elastic member with the restraining piece of claim 2) are provided on the upper surface of the case substrate 31 at equal intervals. A restraining piece 37 that engages with the joint portion 42 is provided. With the above configuration, the barrel case 38 is configured.

  Next, the barrel 39 used in the present invention will be described. As shown in FIG. 4, the barrel 39 includes a barrel main body 40 and a lid body 46 described later. The inside of the barrel main body 40 has a hexagonal cross section as shown in FIG. As shown in FIGS. 4 and 5, six engaging portions 42 are formed at equal intervals on the outer surface of the barrel main body 40, and have a shape that engages with the restraining piece 37. As shown in FIG. 5, a curved plate-like member 43 is screwed to the periphery of the opening of the barrel main body 40, and a hole serving as a handle 44 is cut at the top. Further, a projection 45 for locking a lever 51 described later is provided inside the plate-like member 43 (see FIG. 6).

Next, the lid 46 that is crowned on the barrel main body 40 will be described. A urethane lining 47 is also applied to the barrel body 40 side of the lid 46 (see FIG. 2). A housing 48 is provided on the upper surface of the lid 46, and a push screw 49 passes through the housing 48, and a stopper 50 is attached to the lower end thereof so that the push screw 49 does not come out of the housing 48. A lever 51 is screwed onto the push screw 49, and when the push screw 49 is turned, the lever 51 is moved up and down to be locked to the protrusion 45 (see FIGS. 5 and 6).

    Next, the operation of the barrel mounting machine barrel will be described. First, polishing stones and workpieces, if necessary, water and compounds are put into the barrel main body 40. Next, the lid 46 is placed on the opening of the barrel body 40. The lever 51 is adjusted so as to come under the projection 45 of the plate-like member 43 (FIG. 6). Subsequently, when the push screw 49 is turned, the lever 51 screwed with this rises, and the tip thereof is locked to the protrusion 45. Thus, the lid 46 seals the barrel body 40.

Next, the barrel 39 is attached to the barrel case 38. When the barrel 44 is loaded with the handle 44 of the barrel 39, the bottom of the barrel hits the restraining piece 37 and the leaf spring 36 with the restraining piece opens outward. Further, when the barrel 39 is pushed against the reaction force of the conical spring 33, the engaging portion 42 faces the restraining piece 37 and the leaf spring 36 with restraining piece is restored and engaged. Thus, the barrel 39 is securely mounted and held by the reaction force of the conical spring 33, the restraining piece 37 that holds the barrel 39 so as not to escape, and the force of the leaf spring 36 that presses the barrel 39 inward (FIG. 1). Thereafter, when a barrel polishing machine (not shown) is started, the barrel 39 rotates and revolves under the action of the rotating shaft 32 to polish the workpiece inside.

  When polishing is completed, the barrel 39 is removed from the barrel case 38. To remove the barrel 39, first, the handle 44 is held and the barrel is pushed in. Then, the restraining piece 37 is detached from the engaging portion 42. Next, when the barrel 39 is rotated about 30 degrees, the engaging portion 42 is completely separated from the position of the restraining piece 37 (see FIG. 8). Subsequently, the barrel 39 is removed from the barrel case 38 using the reaction force of the conical spring 33. Removal of the barrel lid 46 may be performed in the reverse manner.

  In the above embodiment, three leaf springs 36 with restraining pieces 37 are provided. However, for example, six leaf springs may be provided. By doing so, the amount of deflection of each leaf spring can be reduced. Further, if the inner diameter of the guide ring 35 and the outer diameter of the barrel main body 40 are made as close as possible, the barrel 39 can be held on the inner peripheral surface of the guide ring 35 and the deflection amount of the leaf spring 36 can be set small. .

Front view with barrel mounted on barrel case Same sectional view Partial cutaway plan view of barrel case Front view of barrel Same side view Top view of barrel Sectional view taken along line AA in FIG. Partially cutaway front view showing the barrel rotated into the barrel case and rotated approximately 30 degrees Cross-sectional view of a conventional barrel case Side view of barrel with lid Sectional view taken along F-F 'in FIG.

Explanation of symbols

31 Case substrate 32 Rotating shaft 33 Elastic body (conical spring)
36 Elastic member (leaf spring)
37 restraining piece 38 barrel case 39 barrel 42 engaging part

Claims (3)

  A method of attaching / detaching a barrel to / from a barrel polishing machine in which a plurality of rotatable barrel cases are attached to a revolving turret, and when a barrel is attached to the barrel case, a restraining piece provided on the barrel case by pushing the barrel When attaching the barrel by engaging the elastic member with the engaging portion provided at the opposite position of the barrel and taking out the barrel from the barrel case, the barrel is pushed once to release the engagement, and then the barrel And removing the barrel by separating the engaging portion of the barrel from the release position to remove the barrel from the barrel polishing machine. A case substrate having a rotating shaft, an elastic body that presses the barrel mounted on the case substrate in the escape direction, and a barrel mounted on the case substrate that prevents the barrel from escaping and the barrel An installation barrel for a barrel polishing machine, comprising: a barrel case comprising an elastic member with a restraining piece that presses inward; and a barrel that is attached to the barrel case and has an engaging portion that engages with the restraining piece. The barrel for a barrel grinder according to claim 2, wherein the elastic member of the elastic member with a restraining piece is a leaf spring.

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