JPS5924450Y2 - automatic polishing machine - Google Patents

Description

[Detailed description of the invention] This invention combines a polishing machine body equipped with a rotating disk with an attachment incorporating a transmission mechanism, and the rotation of the rotating disk is transferred to the workpiece by placing it on the disk via the transmission mechanism of the attachment. This relates to an automatic polishing machine that rotates by transmitting information to a holding plate.It is easy to combine the attachments to the polishing machine body for easy handling, and has a simple structure by simplifying the manual power system of the polishing machine. This will be explained with reference to the illustrated embodiment.

Reference numeral 1 denotes an attachment that is removably combined with a polishing machine body equipped with a rotating disk 4, and includes a drive shaft 2 that is linked to the rotating disk 4 and a workpiece holding plate 5 that is placed on the disk 4 as described later.
and a driven shaft 3 that engages with the driven shaft 3.

The drive shaft 2 is held rotatably and vertically within a limited range, and has an engagement pin 10 projecting in the diametrical direction at its tip.
gear 11 through an axial sliding key mechanism.
Install.

The driven shaft 3 is held rotatably parallel to the drive shaft 2 and movable up and down, and is driven by engaging the gear 11 of the drive shaft 4 with a gear 12 attached to it via an axial sliding key mechanism. A press spring 15 is interposed between a lifting piece 14 provided on the barrel 1a of the attachment 1 which is linked to the shaft 2 and pivotally supports the driven shaft 3 so as to be moved up and down by the rotation of the handle 13. A spring 15, which is disposed oppositely and whose downward pressure can be adjusted by operating the handle 13, urges downward, and a resilient spring 16 urges upward, so that it moves upward when the downward pressure exerted by the spring 15 is weakened. An arm piece 17 that protrudes laterally is fixed to the lower end of the driven shaft 3, and an engagement pin 18 that is protruded downward by a spring 19 is provided at the tip of the arm piece 17.

The drive shaft 2 has a rotating grip ring 20 fixed to its upper end, a push-up spring 21 acting thereon, and an adjustment nut 22 to adjust the upward movement limit of the drive shaft 4.

The rotating disk 4 of the main body of the polishing machine has an upper surface as the polishing surface 4a, or a suitable mesh of polishing cloth, polishing paper, etc. is optionally attached to the upper surface, and it is fixed to the driving shaft 23 and rotated. A protruding shaft 9 is integrally provided on the upper surface of the center thereof, and an L-shaped locking groove 25 with an open upper end is provided at the top thereof, facing the shaft hole 24 and the side wall.

Reference numeral 5 designates a workpiece holding plate 5 that is placed on the rotating disk 4, and has several through-holes 26 for receiving the workpieces a, and accommodates the flat disk-shaped workpieces a, such as locking screws (not shown). The holding plate 5 is integrally connected to the holding plate 5, and an engagement hole 27 is provided on the upper surface of the central portion of the holding plate 5, into which the lower end of the driven shaft 3 of the attachment 1 enters.

Attachment 1 straddles a rotating disk 4 and a workpiece holding disk 5 placed on the upper surface of the polishing machine main body, and a rotating member 6 on the outside of the disk 4 is used to remove polishing debris etc. stuck to the upper edge of the lid frame. A hook-shaped groove is provided in the form of a bridge over the guard ring 6a, one end of which is rotatably attached to a shaft piece 7 attached to the housing 6, and the other end is hook-shaped groove that can be engaged with and detached from a pin 8 attached to the fixing member 6. 28 so that the attachment 1 can be fixed to the fixed member 6 so as not to rotate or float by tightening the shaft piece 7 and the pin 8.

It should be noted that other appropriate models may be used as the means for connecting and disconnecting the free end of the attachment 1 and the lid frame 6.

In the present invention, as shown by the chain line in Fig. 2, the attachment 1 is rotated by the shaft attachment part 7 at one end, and the workpiece holding plate 5 is replaced laterally from the upper surface of the workpiece holding plate 5. With the attachment 1 straddling the rotating disk 4, as shown by the solid line, insert the piece-shaped groove 28 at the other end of the attachment 1 into the pin ≧8.
After the attachment 1 is fixed immovably by tightening the shaft piece 7 and pin 8, the grip ring 20 pushes down and rotates the drive shaft 2 from the chain line position in FIG. 2 against the spring 21. Then, the engagement pin 10 at the lower end is engaged with the L-shaped engagement groove 25 of the protruding shaft 9 as shown by the solid line, and the driven shaft 3 is pushed down by rotation of the handle 13, and the lower end is moved to the workpiece holding plate. 5 to form the rotational axis of the holding plate 6, and further, by the downward movement of the arm piece 17, the engaging pin 18 enters the workpiece accommodation hole 26 of the holding plate 5, or It touches the 5th side of the holding plate,
As will be described later, as the driven shaft 3 rotates, the engagement pin 18 automatically enters the accommodation hole 26 and engages with the inner surface thereof.

After making the above preparations, if the rotary disk 4 is driven, the rotation of the protruding shaft 9 will be transferred from the drive shaft 2 to the driven shaft 3 via the gear mechanism.
With the rotation of the pin 18 at the tip of the arm piece 17, the holding plate 5 rotates around the driven shaft 3 inserted into the central concave hole 27, and cooperates with the rotation of the rotary disk 4 to hold the workpiece a. When the polishing process is finished, the drive of the rotary disk 4 is stopped and the drive shaft 2 and driven shaft 3 are moved upward by the reverse operation to maintain the protruding shaft 9 and the holding plate 5, respectively. The attachment 1 is released from the fixation by the pin 8, and the attachment 1 is rotated horizontally about the shaft attachment part 7, and is removed from above the rotating disk 4, and the holding disk 5 is removed or replaced.

Conventionally, the attachment 1 in this type of polishing machine had to be removed from the rotating disk each time a workpiece was installed, and the operation was extremely complicated and time-consuming, but in the present invention, the attachment 1 has one end attached to the shaft 7. At least the other end of the attachment is detachably fixed, and the attachment 1 is rotated around the shaft attachment part 7 when replacing the workpiece holding plate 5, replacing abrasive paper or polishing cloth with respect to the polishing plate 4, cleaning, etc. The operation is simplified by simply moving the attachment 1 and retracting it to the side, which simplifies the operation by omitting the trouble of removing it. In addition, during polishing work, the attachment 1 straddles the holding plate 5 and is fixed to the fixing member 6 in a bridged state, so its weight is reduced. The pressure set by the spring 15 by the driven shaft 3 is applied correctly in the vertical direction without being directly applied to the contact pressure between the workpiece and the polishing surface 4a, and the workpiece a is polished without fluctuations in surface pressure due to vibrations, etc. Not only is the machining averaged out to prevent one-sided cutting, but the contact area of the workpiece a with the polishing surface 4a is wide, and although its center of gravity is low, there is no vibration during polishing, and the edges of the polishing surface are prevented from sagging. In addition, since the interlocking mechanism is built into the attachment 1, the only input shaft in the polishing machine body is the drive system for the rotary disk 4. Therefore, the structure of the main body can be simplified and downsized, which improves installation conditions.
Furthermore, since the rotation of the rotary disk 4 and the workpiece holding disk 5 is interlocked by a uniaxial system, one of them is fixed integrally, and the other is not rotated, so that it is possible to prevent uneven polishing due to only one rotation. have an effect.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention; Fig. 1 is a cut side view, Fig. 2 is a plan view, Fig. 3 is a perspective view of the protruding shaft, and Fig. 4 is a perspective view of the lower end of the drive shaft. . 1... Attachment, 2... Drive shaft, 3... Driven shaft, 4... Rotating disk, 5
...Workpiece holding plate, 6...Fixing member,
7...Shaft attachment part, 8...Fixing part, 9...
...protruding shaft, 15...spring.

Claims (1)

[Scope of utility model registration request] A drive shaft 2 that moves up and down and is always pressed upward by a spring 21 and is provided with a retaining pin 10 that projects in the diametrical direction at the lower end, and a spring 15 that rotates from the drive shaft 2 by gear transmission and is adjustable. The driven shaft 3 is pressed downward by
The attachment 1, which is equipped with a rotary disc 4 inside, is installed between the fixing members 6, 6 provided on both sides of the polishing machine body equipped with the rotary disk 4, and one end of the attachment 1 is connected to the other fixing member 6 by means of a shaft piece 7. The attachment 1 is pivoted so as to be rotatable in the horizontal direction, and the other end of the attachment 1 is connected to a pin 8 attached to the other fixing member 6 so as to be removable, and in this connected state, the attachment 1 is placed on the rotating disk 4. The lower end of the drive shaft 2 is inserted into the shaft hole 24 of the protruding shaft 9 on the upper surface of the center of the rotary disk 4 by pushing it into the shaft hole 24 while straddling the upper surface of the mounted workpiece holding plate 5 and engaging it. L-shaped retaining groove 2 with pin 10 provided on protruding shaft 9
5, and the lower end of the driven shaft 3 is fixed to the workpiece holding plate 5.
The automatic polishing machine is capable of cutting by engaging the pin 18 on the lower surface of the leg piece 17, which projects laterally from the driven shaft 3, with the holding plate 5.