JPH10166244A - Cutting edge sensor mounting method and cutting edge sensor structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily mount a cutting edge sensor at the free end of an arm mounted at any position on a lathe for its mounting face to be precisely parallel or perpendicular to the main spindle of the lathe without need for adjustment, in a demountable manner. SOLUTION: A cutting edge sensor 6, a base member 3 to mount the cutting edge sensor 6 thereon in a demountable manner, an arm 5 mounted on a lathe with one end at any position and a supporting member 5b provided at the other movable end of the arm 5 to have a gap to the base member 3 are provided. The supporting member 5b is temporarily locked to the base member 3 with a locking means 5c and fixing filler 5d is applied to a gap therebetween.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of mounting a cutting edge sensor for detecting the position of a cutting edge such as a cutting tool mounted on a lathe or the like, and a structure of the cutting edge sensor.

[0002]

2. Description of the Related Art A cutting edge sensor is disclosed in, for example, Japanese Patent Application No. 7-117.
No. 595, a touch sensor having a configuration as described in detail, and in using the touch sensor, the blade sensor is placed at the measurement position only when detecting the position of the blade such as a cutting tool,
Since it is necessary to evacuate during machining, one end is usually attached to the free end of an arm attached to an arbitrary part of the lathe, and evacuated automatically or manually only when detecting the position of the cutting edge such as a cutting tool Move from the position to the measurement position.

[Problems to be solved by the invention]

Since the cutting edge sensor is directly mounted on the free end of the arm, the mounting surface of the cutting edge sensor of the arm needs to have a degree of parallelism and perpendicularity to the main axis of the lathe. Therefore, there is a problem that the adjustment is difficult. Further, there is a problem that it takes time to replace the blade edge sensor.

According to the present invention, the mounting surface of the cutting edge sensor of the arm does not need to be adjusted to obtain the mounting accuracy of the parallelism and the perpendicularity to the main axis of the lathe, and the mounting and dismounting of the cutting edge sensor is facilitated. Is

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a method for mounting a blade edge sensor of a lathe, comprising: (1) a spindle mounting portion mounted on one end of the lathe main shaft;
At the other end, a reference surface corresponding to the spindle is provided, and a jig is prepared in which a base member for attaching the blade sensor is detachable with respect to the reference surface, and a spindle mounting portion of the jig is attached to the spindle of the lathe. Fixing and attaching the reference surface of the base member with reference to the reference surface of the jig. (2) One end is attached to any part of the lathe,
When the movable other end is at the use position of the blade edge sensor, the receiving member provided at the other end includes an arm configured to maintain the base member in a state where an appropriate gap is opened, Temporarily holding the space between the base member and the receiving member while maintaining the above condition. (3) A step of applying a filling and fixing agent to a gap between the base member and the receiving member in the state of the temporary fixing and curing the gap. (4) removing the jig from the base member and the lathe; (5) A step of attaching the cutting edge sensor with reference to the reference surface of the base member. This is a method for mounting the blade edge sensor according to the above-described process.

At least one of the main shaft and the arm mounting portion is a method of mounting a cutting edge sensor, which is a model having a dimensional relationship corresponding to the structure of a lathe to be used.

Further, the present invention provides a blade sensor, a base member to which the above-mentioned blade sensor is detachably mounted, an arm having one end attached to an arbitrary position of a lathe, and a movable other end of the arm. The cutting edge sensor is constituted by the base member and a receiving member provided so as to open a gap, the receiving member and the base member are temporarily fixed by a fixing means, and the gap is filled with a fixing agent. Structure.

[0008] Further, there is provided a structure of a blade edge sensor in which a circuit component is built in the base member and an output signal transmission terminal of the sensor is provided between the blade edge sensor and the base member.

[0009]

1A and 1B show a jig used in the present invention, wherein FIG. 1A is a plan view, FIG. 1B is a front view, and FIG. FIG. Reference numeral 1 denotes a main shaft of a lathe. For example, a tapered shaft portion 2b of a shaft 2a of a jig 2 is inserted into a tapered hole 1a, and an L-shaped plate 2c, a plate 2c and a plate 2c are provided at the right end of the shaft portion 2a. The bearing 2e of the integrally joined bearing member 2d is rotatable about the shaft 2a, but is fitted slightly tight and is stopped by a stepped screw 2f so as not to come off in the right direction.

The lower surface 2g of the plate 2c is parallel to the center line Z-Z of the main shaft 1, and its side surface 2h is parallel to the center line Z of the main shaft 1.
An upper surface 3a of a base member 3 which is machined at a right angle to -Z, each of which is provided with a blade edge sensor;
Are fastened by bolts 4a and 4b in a state where the reference piece 3b and the reference surface 3c of the reference piece 3b are in contact with each other.

A fixed plate 2i is fitted on the shaft 2a, and a slit 2j is provided on the lower surface.
By tightening k, the shaft 2a can be tightly fixed. On the upper part of the fixing plate 2i, two protrusions 2n, 2p are provided so as to sandwich the square protrusion 2m provided on the bearing member 2d, and a strong compression coil spring 2q is provided between the protrusion 2m and the protrusion 2n. Is inserted, and the projection 2m is pushed by the bolt 2r screwed into the protruding piece 2p. Therefore, after slightly loosening the bolt 2k, a surface 2g parallel to the lower surface 2g of the plate 2c using, for example, a dial gauge or the like. By turning the bolt 2r while measuring the surface, 2g 'surface, that is, 2g
The surface can be adjusted to be parallel to the direction in which the cutting edge moves.

FIG. 2 shows the state shown in FIG. 1 (b). In the state shown in FIG. 1 (b), the movable other end of the arm whose one end is attached to an arbitrary part of the lathe is located at the position to be measured when the blade sensor is attached. It is a front view to which the state where it was put was added, (a) is a state where the movable other end of the above-mentioned arm is in a measurement position of a blade edge sensor, (b) further temporarily fixes the state of (a). (C) shows a state in which the state of (b) is further solidified with a filler.

In FIG. 2A, reference numeral 5a denotes a moving end of the arm 5, to which a receiving member 5b is integrally fixed. When the arm 5 is at the measurement position of the blade sensor, the base member 3 is appropriately connected to the receiving member 5b. The shape of the arm 5 is set so as to have an appropriate interval. A screw 5c is provided on the periphery of the receiving member 5b toward the center.

Next, as shown in FIG. 2B, the fixing screw 5c is loosely tightened to fix the base member 3 to the receiving member 5b.

Further, as shown in FIG. 2C, the space between the peripheral portion of the receiving member 5b and the outer peripheral portion of the base member 3 is hardened with a filling and fixing agent 5d.

FIG. 3 shows the state when solidified with the filler 5d.
FIG. 4 is a view showing a state in which bolts 4a and 4b (see FIG. 1) are removed, jig 2 is removed, and blade edge sensor 6 is to be mounted, and base member 3 fixed to receiving member 5b of arm 5;
The blade sensor 6 and the base member 3 are connected to the four bolts 7 with the lower surface 6a of the blade sensor 6 and the reference surface 3c of the reference piece 3b in contact with the upper surface 3a of the blade 3 respectively. (See FIG. 4).

4A and 4B show a state where the blade edge sensor is assembled to the base member 3, wherein FIG. 4A is a plan view and FIG. 4B is a front view. Since the contact of the blade sensor 6 is already configured to be parallel and perpendicular to the reference surface 6b, the use of the jig 2 allows the surfaces 6c and 6e of the contact of the blade sensor 6 to move with respect to the main shaft 1. Vertical,
The surfaces of the contact surfaces 6d and 6f are parallel to the main axis, and all the contact surfaces are perpendicular to the direction in which the cutting edge moves.

A circuit such as an interface normally housed in the blade sensor can be housed in the space of the base member 3. That is, in FIG. 3, reference numeral 3d denotes a circuit board, a circuit component is attached to a lower portion, a contact 3e is formed at an upper portion, and a terminal 6g of a blade sensor is brought into contact with the circuit board (see FIG. 4). Has been made. In addition, 8 is a lead wire from the substrate 3d to the control device.

In the above description, the jig is directly attached to the main spindle of the lathe and the fixed end of the arm is also attached to the lathe. However, the dimensional relationship in accordance with the structure of the lathe is not used directly, but on a surface plate. It is possible to make a model having The present invention is not limited to the above-described embodiment, and various changes can be made without departing from the spirit of the present invention.

[0020]

【The invention's effect】

The surface on which the blade sensor of the arm is mounted requires a highly accurate parallelism and a perpendicularity to the main axis of the lathe.
According to the present invention, the manufacture of the arm does not require such high precision.

Further, when the blade sensor is to be replaced due to, for example, breakage of the contact, the blade sensor can be easily attached and detached, and the replacement of the blade sensor is easy without cords while leaving circuit parts such as interfaces that do not require replacement. It is.

[Brief description of the drawings]

FIG. 1A is a plan view of a jig used in the present invention.
(B) is a front view, which is a ZZ cross-sectional view of (a), and (c) is a left side view.

FIG. 2 is a front view in which an arm is added to the state of FIG. 1 (b), and (a), (b) and (c) show respective steps.

FIG. 3 shows a state where a jig is removed and a blade edge sensor is about to be mounted.

4A and 4B show a state where the blade edge sensor is assembled to a base member, wherein FIG. 4A is a plan view and FIG. 4B is a front view.

[Explanation of symbols]

 1 spindle 2 jig 2g, 2g ', 2h reference surface 3 base member 3a, 3c reference surface 5 arm 5a receiving member 5c stop screw 5d filling and fixing agent 6 cutting edge sensor 6a, 6b reference surface 6c, 6d, 6e, 6f contact

Claims (4)

[Claims] When a lathe cutting edge sensor is attached, (1) a spindle attachment portion attached to one end of a lathe spindle.
At the other end, a reference surface corresponding to the spindle is provided, and a jig is prepared in which a base member for attaching the blade sensor is detachable with respect to the reference surface, and a spindle mounting portion of the jig is attached to the spindle of the lathe. Fixing and attaching the reference surface of the base member with reference to the reference surface of the jig. (2) One end is attached to any part of the lathe,
When the movable other end is at the use position of the blade edge sensor, the receiving member provided at the other end includes an arm configured to maintain the base member in a state where an appropriate gap is opened, Temporarily holding the space between the base member and the receiving member while maintaining the above condition. (3) A step of applying a filling and fixing agent to a gap between the base member and the receiving member in the state of the temporary fixing and curing the gap. (4) removing the jig from the base member and the lathe; (5) A step of attaching the cutting edge sensor with reference to the reference surface of the base member. A method for mounting a blade edge sensor, characterized by the above steps. 2. The mounting of the blade edge sensor according to claim 1, wherein at least one of the mounting portions of the main shaft and the arm is a model having a dimensional relationship corresponding to a structure of a lathe to be used. Method. 3. A cutting edge sensor, a base member to which the cutting edge sensor is detachably mounted, an arm having one end attached to an arbitrary part of a lathe, and a base member attached to a movable other end of the arm. A structure of a blade edge sensor, comprising a receiving member provided so as to open a gap, wherein the receiving member and the base member are temporarily fixed by a fixing means, and a filling and fixing agent is applied to the gap. 4. The structure of a blade edge sensor according to claim 3, wherein a circuit component is built in the base member, and a terminal for transmitting an output signal of the sensor is provided between the blade edge sensor and the base member. .