JPH03270801A - Working method on turret lathe - Google Patents

Abstract

PURPOSE:To simplify construction of a turret lathe by making it possible to drive a turret in to any rotational position, and using this possibility for positioning a drill in the case of drilling a work piece held in a spindle chuck by means of the drill provided on the turret. CONSTITUTION:In the case of performing a drilling work for the first working position A1 of a work piece 16, first, a turret is made to turn until a plane N including the rotary axial line of a drill 30a and a center axial line of the working position A1 of the work piece 16 comes in parallel with a lateral moving direction L of the turret so that a dividing work may be carried out. Thereafter, the turret is locked in the dividing position by means of a servolock. Next, the drill 30a is moved in lateral direction L until the rotary axial line thereof aligns with the center axial line of the working position A1. Then, the turret is made to reciprocate in longitudinal direction, and the work piece 16 is subjected to drill in the working position A1. Respective processes as mentioned above are repeatedly performed, and the work piece 16 is successively worked in plural number of working positions A2-A8.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a processing method for processing a workpiece gripped by a spindle chuck using a rotary tool provided on a turret of a turret lathe.

Conventionally, when processing a workpiece 1 as shown in FIG. 4 at a plurality of processing positions ^1 to ^8 using a rotary tool 2 of a turret lathe, such as a drill, the indexing of the turret is Since it was supposed to be a specific angle index, first, the workpiece 1
Rotate and index the spindle chuck 3 holding the rotating tool 2 until the machining position A1 reaches a plane M parallel to the 3 directions of lateral movement of the turret, including the axis of rotation of the rotary tool 2.
After the rotation of the spindle chuck 3 is regulated by the lock mechanism, the turret and the rotary tool 2 are moved in the lateral movement direction until the rotational axis of the rotary tool 2 and the center axis of the machining position A1 match. After the rotary tool 2 is moved forward in the vertical direction to cut the workpiece 1 at the processing position AI, the turret and the processing tool 2 are moved back in the vertical direction to return to the original position. and,
Perform the same operation vJ as described above for KATO positions 11A2 to A8 once, and perform one row of workpiece 1 for each machining position 11TA1 to 88.
Processing is performed one after another.

However, in such a machining method, the workpiece 1 is indexed by rotating the spindle chuck 3, so a special indexing mechanism must be installed on the spindle side. , the turret lathe is complicated and expensive.
There is a problem with that. Moreover, when machining is performed at a plurality of positions, the above-mentioned positioning work is required for each machining position, and there is a problem in that work efficiency is low.

This invention makes the structure of the turret lathe simple and inexpensive.
Moreover, it is an object of the present invention to provide a processing method that can make positioning work somewhat easier.

This purpose is to be able to index a workpiece gripped by the spindle chuck of a turret lathe whose rotation is restricted to an arbitrary rotational position around an axis parallel to the rotational axis of the spindle char 2, and to A turret lathe machining method in which machining is performed using a rotary tool installed on a turret that is movable in the horizontal direction perpendicular to the axis and in the vertical direction parallel to the axis of rotation, and the coordinates of the center of machining of the workpiece After rotating and indexing the turret so that the coordinate position of the rotation center of the rotary tool corresponds to the position in a predetermined relationship, move to the line engraving position.
a step of moving the turret in the horizontal direction until the center of rotation of the rotary tool matches the center of machining, and a step of reciprocating the turret in the vertical direction to move the workpiece to the machining position. This can be achieved by repeatedly machining the workpiece at a plurality of machining positions one after another.

Tsuzuki First, index the rotary tool by rotating it so that the coordinate position of the rotation center of the rotary tool corresponds to the coordinate position of the machining center of the workpiece in a predetermined relationship, and then lock the turret at the line engraving position. do. Next, move the turret laterally until the center of rotation of the rotary tool and the center of the machining tool coincide.Next, move the turret back and forth in the vertical direction to place the workpiece in the machining position with the rotary tool. Processed by Above 3
The process is repeated I7, and the workpiece gripped by the spindle chuck of the rotationally regulated turret lathe is successively machined at a plurality of processing positions W. In this way, the indexing tool, which was conventionally installed to index a desired tool from a plurality of tools, can be moved to any rotational position. Since we have made it possible to use this function to position the rotary tool relative to the pressurized object, there is no need to install a special indexing mechanism on the spindle side as in the past, making it possible to The structure is simpler and the cost is lower. Maybe,
If two or more machining positions are located on a straight line parallel to the turret's lateral movement direction, the rotary tool can be positioned at the multiple machining positions simply by horizontally moving the turret. This will improve work efficiency by -1.

尤JLfM Hereinafter, one embodiment of the present invention will be described based on the drawings.

In FIG. 1.2, 11 is a turret lathe, and this turret lathe 11 has a headstock 13 that supports a main spindle 12, and the upper tj! The Ia 12 is driven and rotated around a horizontal rotation axis by a gear train and a motor housed in the headstock 13, and is locked at any rotational position by a locking mechanism (not shown) to restrict its rotation. A spindle chuck 15 is provided at the tip of the spindle 12, and a workpiece 16 is gripped by the spindle chuck 15. Is 19 the main axis 1? Extending along the axis of rotation is a propeller door of the lathe 11, in which bed 19 a carriage 20 is slidably supported 811. A screw shaft (1. not shown) extending along the bed 19 is connected to the vertical feed lever 21 fixed to the head 19, and this screw shaft is connected to the carriage 20 with a screw thread 1.2. There is. As a result, when the longitudinal remoter 21 operates, the carriage 20 moves to
7) It moves in the vertical direction parallel to the axis of rotation of the spindle chuck 15 while being guided by the bed 19 together with the spindle chuck 23. A traverse table 23 is slidably supported on the reciprocating table 20, and a traverse motor 24 is fixed thereto. A screw shaft (not shown) extending horizontally and perpendicular to the axis of rotation of the spindle chuck 15 is connected to the traverse motor 24, and this screw shaft is screwed into the traverse table 23.

As a result, when the traversing motor 24 operates, the traversing table 23 moves on the carriage 20 together with a turret 28, which will be described later, in a lateral direction perpendicular to the axis of rotation of the spindle chuck 15.

A speed reducer @25 is housed in the traverse table 23, and this speed reducer 25 is connected to a servo motor 2B fixed to the traverse table 23. The speed reducer 25 has an output shaft 27 extending horizontally and parallel to the rotational axis of the spindle chuck 15, and a polygonal, here octagonal turret 28 is attached to the output shaft 27. And this turret 28
is rotated by the servo motor 26 to an arbitrary position around a horizontal axis parallel to the rotation axis of the spindle chuck 15 for indexing, and at the rotational position, the turret 28 is automatically rotated by the control loop of the servo motor 2B. The rotation is regulated by the servo lock function. 8 located at the radially outer end of the turret 28
A tool 30 extending toward the headstock 13, for example a drill 30m, is mounted on the surface 28.

Among the tools 30, a drill 30 is a rotary tool.
a is driven and rotated by a motor (not shown) attached to the turret 28.

Next, the operation of one embodiment of the present invention will be explained.

It is now assumed that the spindle chuck 15 is locked by a locking mechanism to restrict its rotation, and that the workpiece to is gripped by the spindle chuck 15. In this state, the first machining position of the workpiece IB as shown in FIG. When drilling holes in IAI, first operate the servo motor 26 and transfer its rotational driving force to the reducer 25.
until the plane N including the rotational axis of the drill 30a and the central axis of the machining position AI of the workpiece 1e becomes parallel to the lateral movement direction of the turret 28.
In other words, the workpiece! Drill 30 at the coordinate position of the processing center of 6
So that the coordinate positions of the rotation center of a correspond in a predetermined relationship,
The turret 28 is rotated and indexed, and then the turret 2B is locked at the indexed position by the servo lock of the servo motor 26, and the rotation of the turret 28 is restricted. The stand 23, the tray 7) 2B, and the drill 30a are integrated, and the drill 3
The next step is to move the rotation axis of 0a in the lateral direction until it coincides with the center axis of the processing position ^l (until they become coaxial).
By operating the vertical feed remoter 21, the reciprocating table 20, the transverse table 23,
The turret 28 is integrally moved forward in the vertical direction (moved toward the workpiece 1B), and the workpiece 16 is drilled with the drill 30a at the processing position 11AI. At this time, the turret 28 is also fixed at the indexed position by the above-mentioned servo lock. Then, the vertical feed motor 21 is operated again to move the turret 28 back in the vertical direction, and the drill 30a is returned to its original position. The workpiece is gripped by the spindle chuck 15 of the turret lathe M111, which is regulated by one rotation after repeating one or more of the following steps. 6 to multiple processing positions A2~
Processing is performed one after another in ^8. In this way, the turret 28, which was conventionally installed to index a desired tool 30 from a plurality of tools 30, can be indexed to any rotational position, and the turret 28 can be indexed to any rotational position. Since it is also used for positioning, there is no need to install a special indexing mechanism on the spindle side as in the past.
The turret lathe 11 has a simple structure and is inexpensive. Moreover, when a plurality of machining positions A2 and A4 are located on one straight line P parallel to the lateral movement direction of the turret 28, the turret 28 must be moved horizontally. By simply moving the tool 30, the tool 30 can be positioned to match these machining positions A2 and A4, improving work efficiency.

In the above-mentioned embodiment, the case where the traversing table 23 and the turret 28 move laterally on the carriage 20 in the horizontal plane was explained, but in this invention, the traversing table 23 and the turret 28 move in the horizontal direction on the carriage 20. The movement may be made in a plane that is laterally inclined at a predetermined angle.

As explained above, according to the present invention, a turret lathe can be constructed easily and inexpensively, and 1. Kamo positioning work can also be easily rubbed.

[Brief explanation of drawings]

FIG. 1 shows an embodiment of the present invention. A schematic side view of FIG. 2, a schematic side view of FIG. 7, a schematic side view of FIG. 7, a schematic side view of FIG. be. 11...Turret lathe! 6...Workpiece 3Oa...Rotary tool N...Flat surface

Claims (1)

[Claims] The workpiece gripped by the spindle chuck of a turret lathe whose rotation is regulated can be indexed to any rotational position around an axis parallel to the rotational axis of the spindle chuck, and the workpiece can be indexed to any rotational position in the lateral direction perpendicular to the rotational axis and in the rotational direction. A machining method for a turret lathe in which machining is performed using a rotary tool provided on a turret that is movable in the vertical direction parallel to the axis, and the coordinate position of the rotation center of the rotary tool is set at the coordinate position of the machining center of the workpiece. after rotating and indexing the turret so that they correspond in a predetermined relationship, locking the turret at the indexed position, and moving the turret laterally until the center of rotation of the rotary tool and the center of machining coincide. By repeating the process of moving the turret and the process of reciprocating the turret in the vertical direction and machining the workpiece with a rotary tool at the machining position, the workpieces can be machined one after another at multiple machining positions. Characteristic machining method on turret lathe.