JPH06623U - Tilt scale device for machine tools - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] A low-cost tilt ikeru device that has a simple structure and can overcome the overturning moment of the workpiece. [Structure] The table 2 on which the work 1 is mounted is configured to be rotatable around a tilting central shaft 7, and a drive motor 3 drives a reduction gear 4 and a pinion gear 5 to drive a sector gear 6 which meshes with the sector gear 6 to drive the sector gear 6. The table 2 which is integral with is rotated. The hydraulic cylinder 8 attached to the table 2 acts as a clamp cylinder by switching the solenoid valve when the work is mounted horizontally on the table and when the machining is vertical. It acts to cancel the moment, and assists the driving force for the table rotation by the driving motor when it falls from the vertical state to the horizontal state.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tilt angle device for mounting a work on a machine tool such as a machining center.

[0002]

[Prior art]

 In the case of tilt tilt that can tilt the table for attaching the work horizontally and vertically, the tilting moment due to the work becomes large when the work is vertical.Therefore, prepare a high output driving force or use the balancing cylinder. Was set to reduce the driving force.

[0003]

[Problems to be solved by the device]

 Although the overturning moment due to the work becomes larger as the work is closer to the vertical state, it is disadvantageous to prepare a large driving force because of a large loss.

Therefore, in order to cancel the overturning moment, it is conceivable to attach a balancing cylinder as another means to reduce the driving force, but this means causes a problem that the device becomes complicated and the cost increases.

It is an object of the present invention to solve the above-mentioned problems of the conventional device and to provide a new tilt angle device capable of overcoming a work falling moment with a device having a simple structure.

[0006]

[Means for Solving the Problems]

 As a structure for achieving the above object, the tilt angle device for a machine tool of the present invention is a tilt angle device capable of holding a work by rotating the table horizontally when mounting a work and vertically when processing. In the device, the table on which the work is mounted is configured to be rotatable by a drive motor about a tilting central axis, and the stroke of a swingable hydraulic cylinder for clamping having one end connected to the table is configured to be large. The hydraulic cylinder can be used also as a balance cylinder when the table is tilted.

[0007]

[Action]

 The operation of the present invention will be described with reference to the hydraulic circuit of the hydraulic cylinder shown in FIG. 3. The hydraulic cylinder 8 introduces pressure oil from the hydraulic source 11 into the cylinder 8 by switching the solenoid valve 10 when the table is horizontal and vertical. And acts as a clamp cylinder.

When the table on which the work is mounted rotates from the horizontal state to the vertical state and rises, the hydraulic cylinder 8 acts by the counter balance valve 9 to cancel the overturning moment caused by the work, and also from the vertical state to the horizontal state. When it falls into a state, the P port is connected to the B side of the hydraulic cylinder 8 to assist the driving force for the table rotation by the drive motor.

As a result, it is not necessary to increase the drive motor due to the overturning moment of the work that occurs only in a nearly vertical state, and it is possible to sufficiently cancel the overturning moment due to the work.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 shows a state in which a work is mounted in a horizontal state, and in this state, the table is in a vertical state. 2 shows a state in which the table rotates, and a two-dot chain line in FIG. 2 shows a horizontal state of the table 2.

In these figures, reference numeral 1 denotes a work mounted on the table 2, which can be moved from the mounting position to the working position of the work as the table 2 rotates.

A tilting center shaft 7 is pivotally supported at the central position of the table 2, and a sector gear 6 is provided at the lower portion of the table, and the sector gear 6 meshes with the pinion gear 5.

The pinion gear 5 is further connected to the drive motor 3 via a speed reducer 4.

Reference numeral 8 denotes a hydraulic cylinder, which is swingably pivoted on a base at an intermediate position thereof, and a stroke end of the cylinder 8 is connected to the table 2 below the table 2.

Next, the operation of this apparatus will be described. When the work 1 is mounted, the table 2 is placed in a horizontal state as shown by the chain double-dashed line in FIG.

When the mounting of the work 1 is completed, the drive motor 3 shown in FIG. 1 is driven to rotate the table 2 in a vertical state as shown by a solid line via the speed reducer 4, the pinion gear 5, and the sector gear 6. .

In this state, the work is machined, and when the work is completed, the table 2 is returned to its original horizontal state and the work is removed.

The action of the hydraulic cylinder 8 when the table 2 is tilted is as described above.

Although one embodiment of the present invention has been described above, it is needless to say that the present invention is not limited to the above embodiment and various design changes can be made within the scope of the technical idea of the present invention.

[0020]

[Effect of device]

 The tilt angle device of the machine tool of the present invention not only simplifies the installation by using the table clamp cylinder also as the balancing cylinder when the table is tilted, but also for the work that occurs only when the table is nearly vertical. It is not necessary to enlarge the table drive motor 3 due to the overturning moment, so that it is possible to provide a low-cost tilt ikeru device.

[Brief description of drawings]

FIG. 1 is an external side view of a tilt angle device for a machine tool according to an embodiment of the present invention.

FIG. 2 is a side sectional view showing a state when the table is moved in the apparatus of the embodiment.

FIG. 3 is a hydraulic circuit diagram of a hydraulic cylinder in the apparatus of the embodiment.

[Explanation of symbols]

 1 Work 2 Table 3 Drive Motor 4 Reducer 5 Pinion Gear 6 Sector Gear 7 Tilt Center Axis 8 Hydraulic Cylinder 9 Counterbalance Valve 10 Solenoid Valve 11 Hydraulic Source

Claims (1)

[Scope of utility model registration request] 1. A tilt angle device capable of holding a work by rotating the table horizontally when mounting a work and by vertically rotating the table during machining, and the table on which the work is mounted is centered around a tilting central axis. In addition to being configured to be rotatable by a drive motor, the stroke of a swingable clamp hydraulic cylinder whose one end is connected to the table is made large so that the hydraulic cylinder can also serve as a balance cylinder when the table is tilted. A characteristic tilt tool device for machine tools.