JPH0451976Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is based on the idea that a grinding wheel, especially a disk-shaped grinding wheel, is attached to a rotating shaft with a cushioning property, and the disk-shaped grinding wheel is attached to a surface to be ground. This invention relates to the improvement of the cushion mechanism in a cushion grindstone aiming at adhesion and followability.

(Prior Art) The present inventor first attached a disc-shaped grinding wheel to a rotating shaft via an elastic material such as a rubber material or a coil spring, and improved the adhesion of the disc-shaped grinding wheel to the surface to be ground. We have developed a disc-shaped grinding wheel that maintains followability and has cushioning properties that allow for even grinding work due to the pressurized adhesion provided by the elastic function.

By the way, the purpose of developing this disk-shaped grinding wheel with cushioning properties was to day scale (remove oxide film) steel sheets in steel mills, etc., as disclosed in Japanese Patent Application No. 167464/1983. Ta. That is, a plurality of disc-shaped grinding wheels having the above-mentioned cushioning properties were combined to form a grinding roll, and this grinding roll was used to remove scale from a wide steel plate material.

The removal of scale using a grinding roll is an extremely innovative new day scaling method that replaces the conventional pickling method, shot blasting method, and other conventional methods.

In other words, day scaling using the grinding roll method does not require the long processing time found in pickling methods, nor the huge equipment costs and maintenance costs required, making the processing work much more efficient.
Moreover, it is highly economical, and is particularly highly regarded as a day scaling device that is highly rational and workable when incorporated into a rolling line.

(Problems to be Solved by the Invention) However, in the disc-shaped grinding wheel with cushioning properties constituting this grinding roll, the cushioning function is achieved by using a rubber material as disclosed in the above-mentioned Japanese Patent Application No. 167464/1983. Alternatively, a plurality of coil springs or plate springs are arranged radially around the rotating shaft, and the elastic restoring force of the rubber material, coil spring, or plate spring is utilized to be exerted.

However, in the case of the former rubber material, there were problems such as deterioration in function due to twisting of the rubber material itself and deterioration over time. In addition, in the latter case where a coil spring or a leaf spring is used, the contact point that applies the spring pressure to the disk-shaped grinding wheel has a so-called point contact structure, and since it is arranged in multiple pieces around the rotation axis, the disk-shaped grinding wheel There was a problem in maintaining the roundness of the mold grinding wheel during rotation.

In other words, it is technically extremely difficult to regulate the spring pressure of a plurality of coil springs or leaf springs uniformly in radial positions and set them around the rotation axis. There was a drawback that the uniformity of the pressing force against the grinding surface was impaired.

This tendency is particularly strong when the rotation speed is low, such as with a disc-shaped grinding wheel used in day scaling, and this was a technical problem to be solved.

(Means for Solving the Problems) Therefore, the present invention, as a means to solve such technical problems, has been developed to A male protrusion ring with a wedge-shaped cross section is attached to one of the inner circumferential surfaces of a disc-shaped grinding wheel that is driven with a slight play between A female mold receiving edge formed with a leaf spring material that engages with the mold flange ring is attached, and when the disc-shaped grinding wheel rotates with the rotation of the rotating main shaft, the male mold flange ring is released from the leaf spring material. The device is characterized in that it is configured to be rotated by engaging and fitting into the female-type receiving edge against spring pressure.

The female receiving edge made of the leaf spring material may be a disk spring-shaped female receiving edge having an X-shaped cross section, a female receiving edge having a bicycle wheel rim shape in cross section, or It is characterized by having a triangular cross section and a female-shaped receiving edge with a truncated apex corner.

(Function) As explained above, in the present invention, a disc-shaped grinding wheel is attached to the rotating main shaft with some play in the rotational direction and radial direction, and the inner peripheral surface of this disc-shaped grinding wheel and the rotating main shaft are connected. A male projecting edge ring and a female receiving edge are attached to the outer circumferential surface of the fixed disk that rotates as a unit, so that when the rotating main shaft is driven to rotate, the disk-shaped grinding wheel will rotate. , rotates eccentrically from the main shaft due to its own centrifugal force.

When the disk-shaped grinding wheel rotates eccentrically, the male ridge provided on the corresponding surface between the inner circumferential surface of the disk-shaped grinding wheel and the inner circumferential surface of the fixed disk that rotates integrally with the main shaft rotates. It acts to bite into the receiving edge of the mold against the spring.

In other words, the rotating disk-shaped grinding wheel is subjected to a cushioning action at both of the engaging portions.

As a result, the outer circumferential surface of the disc-shaped grinding wheel, that is, the grinding surface, is pressed against the surface to be ground with contact pressure due to its cushioning action, and the grinding work is performed while maintaining the adhesion and refillability due to uniform pressure contact. It turns out.

That is, the grinding action is performed based on a uniform elastic pressing force. Furthermore, this point will be specifically explained based on an example.

(Example) FIG. 1 is a longitudinal sectional front view of a grinding wheel constituting the cushion grinding wheel of the present invention, and FIG. 2 is a side view of FIG. 1.

First, in Fig. 1, 10 is the rotational main shaft,
Reference numeral 11 denotes a fixed disk wedged onto the rotating main shaft 10, and 12 is the wedge.

Reference numeral 13 denotes a disc-shaped grinding wheel which is mounted on the rotating main shaft 10 with some play in the rotational direction and radial direction.

In the embodiment shown in FIGS. 1 and 2, the disk-shaped grinding wheel 13 is
On the other hand, a means for providing some play in the rotational direction and the radial direction is constructed as follows.

First, as shown in FIG. 2, flange disks 15 having through holes 14 having a diameter D larger than the outer diameter d of the rotating main shaft 10 are arranged on both left and right sides of the fixed disk 11, as shown in FIG. , this flange disk 1 on both left and right sides
A ring-shaped disk-shaped grinding wheel 13 is integrally fixed to the outer periphery between 5 and 15, and four through-holes 16 are provided at radial positions of the fixed disk 11, and each through-hole 16 has a through-hole. A pin 17 having a smaller diameter than the inner diameter of the hole 16 is passed through the hole 16, and both ends of the pin 17 are fixed to the left and right flange disks 15, 15, as shown in FIG. is configured to have play in the rotational direction and the radial direction with respect to the rotating main shaft 10.

In FIG. 1, reference numeral 18 denotes a wedge-shaped male protrusion ring provided on the inner circumferential surface 13a of the disc-shaped grinding wheel 13.

As shown in the figure, the male projecting edge ring 18 is a ring having a triangular cross section, and is attached to the inner circumferential surface 13a of the disc-shaped grinding wheel 13 by integrally fixing its base.

Reference numeral 19 denotes a female receiving edge formed of a leaf spring material that engages with the male projecting edge ring 18 attached to the outer peripheral surface 11a of the fixed disk 11.

In this embodiment, the female receiving edge 19 is configured so that its cross section is X-shaped in FIG. As shown in the figure, the cross section is shaped like the rim of a bicycle wheel, and as shown in Figure 4, the cross section is triangular, with the apex corner cut out. It may also be used as edge 19.

Furthermore, in the embodiment shown in FIGS. 1 and 2, the male projecting edge ring 18 is provided on the disc-shaped grinding wheel 13 side, and the female receiving edge 19 is provided on the fixed disc 11 side. However, even if the two are installed in reverse, the function remains the same.

In addition, in this embodiment, as a means for giving the disc-shaped grinding wheel 13 some play in the rotational direction and radial direction with respect to the rotating main shaft 10, as shown in FIG. The disk-shaped grinding wheel 13 is equipped with a through hole 14 having a diameter D larger than the outer diameter d of the fixed disk 11, and the fixed disk 1
1 and the disc-shaped grinding wheel 13 may be connected by a plurality of link members 20.

That is, the disc-shaped grinding wheel 13 may be configured to be rotated by the fixed disc 11 via the link member 20 by rotationally driving the rotating main shaft 10.

(Effect of the invention) Since the present invention is configured as shown in the embodiments above, if the rotating main shaft 10 is rotationally driven and the disk-shaped grinding wheel 13 is rotated, the disk-shaped grinding wheel 13 can be rotated.
The grinding wheel is pressed against the surface to be ground by its own centrifugal force, and this pressure force is absorbed by the engagement between the male flange ring and the female receiving edge, reducing the pressure force against the surface to be ground. Grinding can be performed by holding it uniformly and making sliding contact.

In particular, the meshing part between the male projecting edge ring and the female receiving edge, which share the functions of maintaining a uniform pressure contact force and exerting the ability to apply force onto the surface to be ground, is different from conventional coil springs. Unlike a radial arrangement, it has a continuous surface contact or line contact shape, so it is absorbed and balanced in an even and extremely easy-to-fit form.

That is, it is possible to maintain a stable amount of grinding, and it is possible to exhibit follow-up performance on the surface to be ground.

In particular, when grinding work is performed at low speeds such as day scaling work on steel plates, it is easy to maintain the roundness of the grinding wheel itself and adjust the pressure contact force, resulting in more efficient and higher quality work. day scaling can be performed.

[Brief explanation of the drawing]

The drawings show an embodiment of the cushion grinding wheel according to the present invention.
The side view of the figure, FIGS. 3 and 4 are longitudinal sectional front views showing other embodiments of the female type receiving edge constituting the interlocking part between the male type projecting edge link and the female type receiving edge, and FIGS. The figure is a side view showing another embodiment in which disc-shaped grinding wheels are connected by links to provide some play in the rotational direction and the radial direction. 10... Rotating main shaft, 11... Fixed disk, 12...
... Wedge, 13 ... Disc-shaped grinding wheel, 14 ... Through hole, 15 ... Flange disk, 16 ... Through hole, 1
7...Pin, 18...Male edge ring, 19...
Female type receiving edge, 20...Link member.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) The outer peripheral surface of a fixed disk wedged on the rotating main shaft, and the inner peripheral surface of a disc-shaped grinding wheel that follows the rotating main shaft with play in the rotational direction and radial direction. A male projecting edge ring having a wedge-shaped cross section is attached to one of the circumferential surfaces, and a female receiving edge made of a leaf spring material that engages with the male projecting edge ring is attached to the opposite circumferential surface. A cutstone whetstone that is characterized by (2) The cushion according to claim 1 of the utility model registration claim, characterized in that the female-shaped receiving edge made of the leaf spring material is configured as a disc spring-shaped female-shaped receiving edge having an X-shaped cross section. Whetstone. (3) The utility model according to claim 1, characterized in that the female-shaped receiving edge made of the leaf spring material is configured to have a cross-section shaped like the rim of a bicycle wheel. Cushion whetstone. (4) Utility model registration claim No. 1, characterized in that the female-shaped receiving edge made of the leaf spring material is configured to have a triangular cross section and a shape in which the apex corner is cut off. The cutting wheel described in item 1.