KR100543878B1 - Hinge assembly for adjusting the arbitrary rotation angle of the control panel - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge assembly applied to a hinge structure of an operating panel for controlling various devices of a machine tool. A pair of hinge housings disposed to face each other and having friction surfaces in surface contact with each other; A tightening shaft connecting the pair of hinge housings and simultaneously screwing one side to generate a force for pulling the pair of hinge housings together according to the fastening direction; Spring means for resiliently responsive to the tightening force of the tightening shaft to maintain a constant rotational resistance of the pair of hinge housing side friction surfaces; And it is characterized in that it comprises a bearing means for supporting the smooth rotation of any one of the hinge housing is inserted into the tightening shaft relatively rotated.

Control panel, hinge, machine tool, rotary shaft, bearing, spring

Description

Hinge assembly for adjusting the rotation angle of the control panel

The following drawings, which are attached in this specification, illustrate preferred embodiments of the present invention, and together with the detailed description of the present invention, serve to further understand the technical spirit of the present invention. It should not be construed as limited to.

1 is an exemplary view and a partially enlarged cross-sectional view showing a hinge installation state of a conventional operation panel.

FIG. 2 is a plan view of the hinge assembly shown in FIG. 1. FIG.

Figure 3 is an installed state and partially enlarged cross-sectional view of the hinge assembly according to the present invention.

4 is an enlarged sectional view of portion A of FIG.

5 is a plan view of FIG.

<Explanation of symbols for the main parts of the drawings>

52,60: Hinge Housing

54: bearing

56: tightening shaft

58: spring washer

The present invention relates to a hinge structure of an operating panel for controlling various devices of a machine tool, and more particularly, to a hinge assembly for adjusting an arbitrary rotation angle of the operating panel to adjust the rotation direction of the operating panel at any desired angle.

In general, machine tools (machining centers, turning centers, lathes, multi-task machines, etc.) have a control box in which various electrical control devices are collected. This operation panel is provided with a display device, a numerical input button, and various control on / off switches.

The operation panel is installed in the main body of the machine tool so that the operator can move the position or posture at his convenience. Therefore, the operation panel is installed to be rotatable about any one reference axis to change the position or posture.

Conventionally, the installation state diagram of the operating panel 10 installed in the machine tool as an example is shown in Figs.

That is, the operation panel 10 is rotatable about the hinge pins 12 and 13 disposed up and down on the rotating shaft Z, and the upper hinge pin 12 is bolted to the main body 5. It is inserted into the hinge plate 11 attached with (9) and the hinge plate 7 mounted with the bolt 8 at the operation panel 10 side. A ball plunger 16 is located on the hinge plate 7, and the ball 15 of the ball plunger 16 is circumferentially circumferentially around the hinge pin 12 at the bottom of the hinge plate 11. It has a structure that is in contact with any one of the engaging groove (11a) formed at equal intervals by the force of the spring (14).

Therefore, when the operation panel 10 is rotated, the ball plunger 16 rotates about the hinge pin 12, and at this time, the ball plunger 16 side ball 15 enters the corresponding engaging groove 11a every time, and the operation panel ( 10) is supposed to stop.

That is, the conventional operation panel 10 is to find the stop position for each set angle of 15 degrees where the locking groove (11a) is located. In other words, it is to maintain the angle to determine the attitude of the operation panel 10 by the seating of the ball 15 and the corresponding locking groove (11a).

As such, when the conventional operation panel 10 is rotated, the attitude of the rotation angle is fixed and maintained only by accurate positioning of the ball plunger 16 side ball 15 and the hinge plate 11 side locking groove 11a. If the ball 15 and the corresponding locking groove (11a) does not exactly match, the positioning of the operating panel 10 is not determined, the posture becomes unstable. That is, when the ball 15 and the groove 11a do not exactly match, positioning is not made by magnetic force.

In addition, the operation panel 10 has a problem that it is not possible to maintain the position and posture at any angle desired by the operator to maintain the posture at a fixed rotation angle.

Therefore, the present invention is to solve the problems of the prior art, it is possible to adjust the rotation position of the operation panel at any desired angle to increase the operability of the operator, and at the same time to simplify the configuration to reduce the manufacturing cost It is an object of the present invention to provide a hinge assembly for adjusting an arbitrary rotation angle of a control panel.                         

Specific means of the present invention for achieving the above object,

In the hinge assembly used to fix the operating panel installed on the machine tool at an arbitrary rotation angle,

A pair of hinge housings which are disposed on the axis of rotation and have friction surfaces in surface contact with each other;

A tightening shaft connecting the pair of hinge housings and simultaneously screwing one side to generate a force for pulling the pair of hinge housings together according to the fastening direction;

Spring means for resiliently responsive to the tightening force of the tightening shaft to maintain a constant rotational resistance of the pair of hinge housing side friction surfaces; And

It is characterized in that it comprises a bearing means for supporting the smooth rotation of any one of the hinge housing is inserted into the tightening shaft relatively rotated.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is an installation state diagram and a partially enlarged cross-sectional view of the hinge assembly according to the present invention, FIG. 4 is an enlarged cross-sectional view of portion A of FIG. 3, and FIG. 5 is a plan view of FIG. 3.

In the present embodiment, the operation panel 10 can be rotated up to 90 degrees as shown in FIG. 5, but the hinge assembly 50 is not limited to this angle.

The hinge assembly 50 is provided with a first hinge housing 52 fixedly disposed on the rotating shaft Z of the operation panel 10 by a welding, and the inner diameter portion 52c of the first hinge housing 52 is bare. The ring 54 is inserted.

The bearing 54 is a thrust bearing, which eliminates frictional force at the contact portion between the rotating part that rotates together with the rotating part and the fixed part that is not relatively rotated during rotation operation so that wear between the contact parts does not occur. For sake.

The bearing 54 is inserted with a tightening shaft 56 disposed on the rotating shaft, the second hinge housing 60 is fixed to the tightening shaft 56 by welding to the machine body 5 side at the lower side. It is screwed, the second hinge housing 60 is freely fitted to the cylindrical portion 52a of the first hinge housing 52, these hinge housings 52, 60 are in contact with each other, the friction surface ( 52b, 62b).

Therefore, when the tightening shaft 56 is tightened, the second hinge housing 60 is pulled toward the first hinge housing 52 to form an adhesive force (static friction force) on the friction surfaces 52b and 62b. Therefore, the adhesion force is increased or decreased by the tightening force of the tightening shaft 56.

 Spring means for maintaining the rotational resistance on the friction surface (52b, 62b) by exerting an elastic repulsion force between the head of the tightening shaft 56 and the bearing 54 according to the tightening force of the tightening shaft 56 (58) is interposed. The spring means 58 is composed of one or two or more of the disk springs.

 Or the like.

The tightening shaft 56 is provided with a second hinge housing 60 connected by screwing, and the second hinge housing 60 has friction surfaces 52b and 62b which are in surface contact with the first hinge housing 52. , The cylindrical portion 52a of the first hinge housing 52 is freely inserted into the inner circumferential surface of the inner side hole 60a of the friction member 60.

In this embodiment, the tightening shaft 56 is prevented from loosening by the double screw method. That is, the tightening shaft 56 is screwed into the screw hole 61 of the second hinge housing 60 and is prevented from loosening by the nut 57.

The hinge assembly 50 configured in this way is provided on the rotating shaft Z on which the operation panel 10 is installed. At this time, the hinge assembly 50 may be installed on the upper or lower or both of the operation panel 10.

3 is a hinge assembly 50 is installed on the lower side of the operation panel 10, the upper side is supported by a hinge pin 54, the hinge pin 54 is fixed to the operation panel 10, the main body 5 side Is rotatably inserted into the hinge plate 66 mounted with the bolt 67.

3, the first hinge housing 52 of the hinge assembly 50 is fixed to the control panel 10 by welding, and the second hinge housing 60 is fixed to the machine body 5 by welding. In the present invention, however, the same effect can be obtained even if the first hinge housing 52 is fixed to the machine body 5 side and the second hinge housing 60 is fixed to the operating panel 10 side.

Reference numeral '62' is a 'sleeve' inserted into the tightening shaft 56 to hold the disk spring 58 in position.

When the hinge assembly 50 is installed in this way, the following effects are obtained.

First, when the tightening shaft 56 is rotated and the second hinge housing 60 is pulled toward the first hinge housing 52 in the assembled state as shown in FIG. 4, the elastic repulsive force of the disk spring 58 is increased.

The repulsive force of the disk spring 58 pushes the tightening shaft 56 upward, and the second hinge housing 60 connected to the tightening shaft 56 is further pushed toward the first hinge housing 52 side. That is, the first hinge housing 52 and the second hinge housing 60 are pulled together through the tightening shaft 56 to generate a constant surface pressure at the friction surfaces 52b and 62b of the disk shape.

Therefore, when the operation panel 10 is rotated to any one within the maximum rotation range, the first hinge housing 52 rotates integrally with the operation panel 10, and the contact surface 52b with the relatively fixed second hinge housing 60 is fixed. At 62b, kinetic frictional force against rotational resistance is generated.

Therefore, the operation panel 10 is rotated while the frictional resistance occurs. Therefore, when the operation panel 10 rotates to remove the operating force at an arbitrary rotation angle, the stop position is maintained by the static frictional force generated by the elastic repulsive force of the disk spring 58 in place.

Therefore, the operation panel 10 can freely position the operation panel 10 at any desired angle within a 90 degree range that is rotated at the maximum on the rotation axis.

If the rotational resistance is weakened by tightening the tightening shaft 56 with an appropriate force, the rotational resistance is maintained again.

On the other hand, while the operation panel 10 is rotated, the ball of the bearing 54 smoothly rolls to assist the rotation. That is, the bearing 54 functions to act only on the friction surfaces 52b and 60b of the hinge housings 52 and 60 when the operating panel 10 rotates.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto, and the technical idea of the present invention and the following by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

According to the hinge assembly of the present invention as described above, the rotational position of the operation panel can be adjusted at any desired angle, and the operator's operability is improved, and at the same time, the configuration is simple and the manufacturing cost can be reduced.

Claims (4)

In the hinge assembly used to fix the control panel 10 installed on the machine tool at any rotation angle, A pair of hinge housings 52 and 60 disposed to face each other on the rotational axis and having friction surfaces in surface contact with each other; A tightening shaft 56 which connects the hinge housings 52 and 60 and at the same time is screwed to one side to generate a tightening force in the hinge housings 52 and 60; Spring means for resiliently responsive to the tightening force of the tightening shaft 56 to maintain a constant rotational resistance of the friction surfaces of the hinge housings 52 and 62; And Hinge assembly for adjusting the arbitrary rotation angle of the operating panel, characterized in that it comprises a bearing means for supporting the smooth rotation of the hinge housing (52 or 60) is inserted into the tightening shaft (56) relatively rotated. The method of claim 1, The bearing means is a hinge assembly for adjusting the arbitrary rotation angle of the operation panel, characterized in that the thrust bearing. The method of claim 1, The spring means is a hinge assembly for adjusting the arbitrary rotation angle of the operating panel, characterized in that the disk spring. The method of claim 1, Hinge assembly for adjusting the arbitrary rotation angle of the operating panel, characterized in that the screw 57 is screwed to prevent loosening to the tightening shaft (56).

Images