JP2507904Y2 - Tool presetter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a holding tool, for example, the length and diameter between the chuck and the cutting edge of the drill when the chuck holds a tool such as a drill. The present invention relates to a tool presetter capable of accurately measuring or adjusting the directional position.

[Prior Art] For example, when a large amount of holes are drilled in a work such as a cylinder block of an engine, it is necessary to set or adjust the cutting edge of the drill on a processing device. However, when setting or adjusting a tool on the processing apparatus in this way, an expensive processing apparatus must be idle during that time, which is a big problem from the viewpoint of process control.

Especially, in the case of boring, a lot of time is required for the radial adjustment. Even with a boring device having a length correction function, if the adjusting time can be further shortened, the cost required for machining can be reduced.

Recently, machine tools using numerical control (NC device) and automatic tool changers (ATC devices) have come to be used in the machining process, but such automatic devices are supplied with chucks holding tools. In order to do so, the dimensional relationship between the chuck and the cutting edge of the tool must be accurately grasped.

A tool presetter is used for the above purpose. The tool presetter will be described with reference to the drawings of the present invention, as shown in FIG. 1 and FIG.
The bed 2 is placed on the bed, and the column 3 is planted on the bed 2. A slider 4A having a major head 4 is provided so as to be vertically movable along the column 3.

The measure head 4 is fed up and down by a height feed handle 5 and is moved by a radial feed handle 6 in the radial direction of the tool. Further, the spindle rotation handle 7 can be rotated to rotate a tool such as a drill supported by a chuck supported by the spindle unit 8.

The measure head 4 is equipped with a projection screen 9, a height direction checker dial gauge 10, a radial direction checker dial gauge 11, a height direction checker dial gauge moving knob 12, and the like. And this major head 4
A display unit 13 is provided on the side of.

[Problems to be solved by the device]

FIG. 5 and FIG. 6 are views showing the main part of the measure head of the conventional tool presetter, and the slider 4A constituting the base part of the measure head 4a vertically guided along the column 3a is A weight 4b is placed inside the cylindrical column 3a.
, And the weight 4b and the major head 4a are connected by a wire 4c to achieve weight balance. However, this method has the following drawbacks.

(1) In the conventional device, one wire 4c connects between the slider 4A and the weight 4b due to structural restrictions. However, due to structural restrictions, the sliding weight of the slider 4A is larger than that of the balance weight 4b shown in FIG. Further, as described above, if the slider 4A and the weight 4b are connected by the single wire 4c, there is a one-sided balance, and there is a drawback that the slider 4A, that is, the measurement head 4a is not smoothly moved.

(2) Further, since the weight 4b must be housed inside the cylindrical column 3a, its diameter is limited,
Furthermore, because the operating stroke is also limited, if the weight of the balance weight 4b is made to match the sliding weight of the slider 4A, the length of the balance weight 4b must be increased, and in the end, the column 3a It becomes taller and lacks stability.

This weight 4b is manufactured using lead with a large specific gravity in order to increase the weight in the same volume, but even if this lead is used, it is inevitably large and column 3a The current situation is that the height cannot be lowered.

(3) In the conventional device, the balance weight is not completely removed, and the ring is inserted in the upper part of the column 3a to make the column 3a
The height of is increased to improve the weight balance volume. However, by inserting the ring in this way, the height of the entire column becomes high, and the column 3a tends to be in an unstable state due to problems such as rigidity.

(4) In the conventional apparatus, the weight b may move inside the column 3a during transportation, which may damage the column 3a and the like. Therefore, at present, the weight 4b is moved down in the column 3a and fixed at the lowermost part for transportation, which makes the work complicated and increases the transportation cost.

(5) In the conventional device, the weight 4b is placed in the column 3a.
Since this accommodates the weight 4b, the work of incorporating the weight 4b becomes complicated. Therefore, there is a problem that if the weight-related part breaks down, the manufacturer has to make a business trip to repair it.

SUMMARY OF THE INVENTION The present invention provides a device that solves the drawbacks of the above-mentioned conventional devices, and its object is to: (a) provide a device in which the major head does not have one sided balance.

(B) To provide a device that does not use weights.

(C) To provide a device with low column height and high stability.

(D) It is easy to assemble and adjust, and it is not necessary to consider weight fixing and adjusting like a conventional device during transportation.
Another object is to provide a device with less failure.

[Means for solving the problem]

The present invention to achieve the above object is to provide a plurality of constant force springs provided on the left and right or front and back of a slider equipped with a measure head that moves along a column erected on a bed, and on the top of the column. A tool presetter configured to be connected to a spring pulled out from a device and configured to balance the load of a slider or the like by the constant load spring device.

[Action]

Since the spring load of the constant force spring device can be designed arbitrarily,
It is possible to balance with the load of a moving body such as a slider without using a balance weight. Since it does not require a large space like a balance weight and does not swing, the device can be downsized and transportation work becomes easy.

〔Example〕

 Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 3 is a front view of a portion of the major head 3, and FIG. 4 is a plan view showing a cover.

Slider on the outer surface of column 3 that is planted on bed 2.
4A is fitted so that it can be guided up and down.

A constant force spring device 15 is provided on the upper end of the column 3 via a base plate 16, and the plate spring pulled out by this is provided.
17 is fixed to a fixture 18 fixed to the upper end of the slider 4A.

As shown in FIG. 4, a decorative plate 20 is provided on the front and rear surfaces of the column 3, and guide portions 21 having a U-shaped cross section are provided on both side surfaces of the decorative plate 20, and a bellows 22 is provided between the guide portions 21. Expands and contracts according to the movement of slider 4A.

The constant force spring device 15 is composed of a spiral spring, and is a device having a function of making the force of rewinding the spring 17 constant regardless of the stroke when the spring 17 is pulled out. Select an output device that matches the load of the slider 4A.

The retracting force of the spring 17 of the constant force spring device 15 is set to balance the load of the slider 4A or the like,
You can easily move the slider 4A up and down.

[Effect of device]

The tool presetter according to the present invention is provided with two sliders equipped with a measure head that moves along a column erected on a bed and two sliders provided above the column.
The springs drawn from the individual constant load spring devices are connected to each other, and the constant load spring device is configured to balance the load of the slider or the like, and the following effects can be achieved.

(1) In the tool presetter according to the present invention, the constant force spring device 15 suspends a plurality of positions on the upper end of the slider 4A, two positions in the embodiment, so that both springs balance the slider 4A. The movement of this is smooth and the operability is excellent.

(2) Since the constant load spring device 15 can arbitrarily design the spring load, the load can be freely designed regardless of the inner diameter of the column 3 or the working stroke.

(3) Since the tool presetter according to the present invention does not suspend the balance weight inside the column 3, the height of the column 3 may be the height at which the slider 4A moves up and down, and this height can be lowered. it can.

Since the height of column 3 can be lowered, column 3
It is possible to provide a device with increased strength and good stability.

(4) When the tool presetter is transported, it is not necessary to fix the weight unlike the conventional device, and therefore the transportation becomes easy.

(5) Since the constant force spring device 15 is used, it is easy to assemble and repair at the user's site is easy, and the user can perform repairs with confidence.

(6) The constant force spring device 15 is cheaper in price and lower in cost than the case where lead weights are used, and the cost associated with the assembling work is also reduced.

(7) Since there is no such thing as a weight that moves together with the slider 4A, it is not necessary to add columns or the like to increase the weight, and the device can be made into a compact.

[Brief description of drawings]

FIG. 1 is a front view of a tool presetter according to the present invention, FIG. 2 is a side view of the same, FIG. 3 is a front view showing the relationship between a column and a measure head, and FIG. 4 is the same plane without a cover. It is a figure. FIG. 5 is a front view showing a column and a measure head of the conventional apparatus with a part thereof cut away, and FIG. 6 is a side view of a column portion of the conventional apparatus. 1 ... Stand legs, 2 ... Bed 3 ... Column, 4 ... Measure head 8 ... Spindle unit, 9 ... Projection screen 10 ... Height direction checker dial gauge 11 ... Radial direction check-out dial gauge 15: constant force spring device, 16: base plate 17: leaf spring, 18: fixture 20: decorative plate, 22: bellows.

Claims (1)

(57) [Scope of utility model registration request] 1. A left and right or front and rear of a slider equipped with a measure head that moves along a column set up on a bed, and a spring drawn from a plurality of constant force spring devices provided on the upper part of the column. A tool presetter that is connected and configured to balance the load of a slider or the like by the constant force spring device.