JPS599784Y2 - grinding equipment - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a grinding device for grinding an end surface that is substantially perpendicular to a horizontal reference surface.

In a conventional grinding device of this type, a cart is equipped with rollers that come into contact with the end surface to be ground and the end surface located on the opposite side of this end surface, and the cart is moved while being guided by the rollers, and is supported by the cart. The polished file was brought into contact with the end surface to be ground.

However, if the end face opposite to the end face to be ground is wholly or partially inclined with respect to the end face to be ground, grinding becomes impossible or continuous grinding becomes impossible. There was a problem.

This idea was created to solve these conventional problems, and the purpose is to provide a grinding device that can grind the end face to be ground with high precision and efficiency, regardless of the end face on the opposite side. shall be.

In the grinding device according to this invention, the rollers are brought into contact only with the end surface to be ground, and the wheels of the trolley are oriented in the running direction away from the end surface to be ground, so that the rollers are always in contact with the end surface to be ground. The file is attached to a pedestal, and the pedestal is supported by a cart so that it can swing freely in the horizontal direction, and the pedestal is urged in the direction of its swing by a biasing device so that the file comes into contact with the end surface to be ground with a predetermined pressure. The grinding accuracy has been increased by increasing the grinding accuracy.

Next, an embodiment of the grinding device according to this invention will be described based on the drawings.

In FIGS. 1 and 2, the grinding device includes a cart 2 that runs on a reference surface 1 and a pedestal 3 that is supported by the pedestal 2 so as to be able to swing in the horizontal direction. It is pivoted to the side of 2.

The truck 2 is provided with a pair of arms 6, 7 that protrude toward the end surface 5, and rollers 8, 9 are attached to the tips of the arms 6, 7, respectively.

Elongated holes 10 and 11 extending in the arm extension direction are bored at the tips of the arms 6 and 7, and a shaft 13 that rotatably supports the rollers 8 and 9 is fixed to each elongated hole with a bolt 12. has been done.

The trolley 2 is provided with wheels 14 which are directed away from the end face 5 in its running direction A, so that the trolley 2
acts so that the rollers 8 and 9 come into contact with the end surface 5 as it travels, so that the cart 2 is always parallel to the end surface 5.

The inclination of the wheel 14 with respect to the end surface 5 depends on the material of the workpiece 15,
It should be changed as appropriate depending on the material of the wheels 14, etc., and the inclination can be easily adjusted by moving the rollers 8, 9 along the long holes 10, 11.

The pedestal 3 is provided with a tensioning device 17 for tensioning a belt-shaped endless file 16, and this tensioning device 17 includes:
Poo'J arranged in a triangle shape 18, 19, 20
and a tension applying device 21 that moves the pulley 18 to adjust the tension of the file 16.

The pulley 19 is arranged between the rollers 8 and 9 in a position close to the end surface 5, and a motor 23 is connected to the pulley 20 via a belt 22.

The tension applying device 21 has a block 25 slidably supported by a pair of beams 24, a pulley 18 supported by the block 25, and the block is connected to the pedestal 3 via a jack 26.

Therefore, the block 25 is moved along the beam 24 by the operation of the jack 26, and the tension of the file 16 is adjusted by the accompanying movement of the pulley 18.

The truck 2 is equipped with a fluid pressure cylinder 2 that urges the pedestal 3 in its swinging direction so that the pulley 19 is urged toward the end surface 5.
7 is attached, and this fluid pressure cylinder 27 is pivotally connected to the carriage 2 and the pedestal 3 so as to be able to follow the swinging motion of the pedestal 3.

The fluid pressure cylinder 27 brings the file 16 into contact with the end face 5 at a constant pressure via the pulley 19, and if the running speed of the truck 2 is constant, the grinding allowance can be kept constant.

Furthermore, since the joint 4 allows the pedestal 3 to swing only in the horizontal direction, if the pivot axis of the joint 4 is set at a predetermined angle with respect to the trolley 2, that is, with respect to the reference plane 1, the end face 5 can be elevated. Can be machined to precise vertical tilt angles.

That is, when the end face 5 is to be machined to be perpendicular to the reference surface 1, the perpendicularity can be made with sufficiently high precision.

As mentioned above, the grinding device according to this invention brings the rollers into contact only with the end surface to be ground, and directs the wheels of the trolley in the direction of travel away from the end surface to be ground, thereby causing the rollers to contact the end surface to be ground. Since they are always in contact with each other, the cart can be guided by the end face to be ground.

In addition, the file was attached to a pedestal, and this pedestal was supported by a cart so that it could swing freely in the horizontal direction, and the pedestal was urged in the direction of the swing by a biasing device so that the file would come into contact with the end surface to be ground with a predetermined pressure. Therefore, the grinding margin and the vertical inclination angle of the end face can be set with high precision.

Note that this invention is not limited to the above embodiments,
The form of the file may be changed, such as using a disc-shaped grindstone instead of a band-shaped file, and three or more rollers may be provided to contact the end face.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of a grinding device according to this invention, and FIG. 2 is a plan view of FIG. 1. 1... Reference surface, 2... Dolly, 3... Frame, 4...
・Joint, 5... End face, 6, 7... Arm, 8, 9.
... Roller, 10, 11 ... Long hole, 12 ... Bolt, 13 ... Shaft, 14 ... Wheel, 15 ... Workpiece,
16... File, 17... Tensioning device, 18, 19
, 20... Pulley, 21... Tension applying device, 22
...■Belt, 23...Motor, 24...Beam, 25...Block, 26...Jack, 27...
・Fluid pressure cylinder.

Claims (1)

[Scope of utility model registration request] A grinding device for grinding an end surface that is substantially perpendicular to a horizontal reference surface includes a cart that is placed on the reference surface and runs along the end surface, and a cart that is pivotally supported by the cart and that is rotated to the end surface. A plurality of rollers in contact with each other, a pedestal supported by the cart so as to be swingable in a horizontal direction, a file attached to the pedestal and in contact with the end surface between the rollers, and this rasp abuts against the end surface with a predetermined pressure. A grinding device comprising: a biasing device that biases the gantry in its swinging direction so as to contact the platform, and the wheels of the trolley are oriented in a direction away from an end face in the running direction of the trolley.