JP2596039Y2 - Horizontal machining center - Google Patents

Description

[Detailed description of the invention]

[0001]

This invention relates to a horizontal machining center, in particular, a method in which a horizontally long workpiece is turned by 180 ° in a horizontal plane.
The present invention relates to a horizontal machining center capable of surface processing.

[0002]

2. Description of the Related Art Conventionally, there has been known a horizontal machining center having a combination table as shown in FIG. This machining center includes a table 32 that is long in a direction orthogonal to the axis of the main shaft 31. The table 32 is divided into three in the longitudinal direction, and the center turning table 32a is turned in the processing area, and the work placed on the table is rotated. (Not shown)
Can be machined by the main shaft 31 on two sides. Conventionally, there has been proposed a horizontal machining center in which one table is formed to be narrow and the table is turned in a processing area.

[0003]

However, according to the conventional horizontal machining center, since the table is turned in the processing area, when the table is widened, the table interferes with the machine body such as the column during the turn. Therefore,
There is a problem that the length of the table is limited, and in the case of a horizontally long work, it cannot be processed on two surfaces. Conversely, if a relief is provided on a column or the like so as not to interfere with the table, there are disadvantages that the machine body becomes large, the dust cover becomes large, and the turning balance of the table deteriorates.

Therefore, an object of the present invention is to provide a horizontal machining center that can reverse a horizontally long work and automatically process two surfaces thereof without increasing the size of the machine body.

[0005]

In order to solve the above-mentioned problems, a horizontal machining center according to the present invention has a work mounting table which is long in a direction orthogonal to a spindle axis, and a work mounting table which is formed between an inner side and an outer side of a processing area. Between the transfer mechanism that translates in the direction of the spindle axis and the work table by 180 degrees in the horizontal plane outside the processing area, and the phase of the work table is shifted by 180 degrees.
Consists of two and a countercurrent Keru reversing mechanism to the main axis of the vertical plane, the transport mechanism carries the work rest after sided machining from inside the machining area to the outside, outside the work table after inversion processing region And a carrying-in / out means for carrying in from inside.

Further, the reversing mechanism is provided with a turning table sized to support a pair of work mounting tables, and moving means for moving the work mounting tables on the turning table.

[0007]

[Function] In the horizontal machining center of this invention,
First, one side of the horizontally long work on the work mounting table is processed inside the processing area, and then the work mounting table is carried out of the processing area, where it is inverted by 180 ° and then carried in the processing area. Subsequently, the opposite surface of the horizontally long workpiece is machined. In this way, the work mounting table can be inverted outside the processing area, so that there is no risk of interference between the work mounting table and the machine body, and the two surfaces of the horizontally long work can be automatically operated continuously without increasing the size of the machine body. Can be processed in a regular manner.

Further, the horizontal machining center of the present invention has an APC (automatic pallet change) function, and alternately transfers a pair of work mounting tables from a swivel table to a processing area, and inverts and moves the other during one processing. By repeating this, it is possible to continuously perform two-sided machining of two horizontally long workpieces by automatic operation.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment embodying the present invention will be described below with reference to the drawings. 1 and 2 show a horizontal machining center according to the first embodiment. In the drawings, reference numeral 1 denotes a bed, 2 denotes a working table, 3 denotes a column, 4 denotes a spindle, and 5 denotes a work mounting table. The work mounting table 5 is formed in a pallet shape that is long in a direction orthogonal to the axis of the main shaft 4 so that the horizontally long work W can be mounted.

A swivel 6 is formed at the center of the bed 1 so as to project forward.
Between them, two rails 7 for transporting and guiding the work mounting table 5 are provided. A hydraulic cylinder 8 is installed on the swivel table 6, and a shifter 9 that reciprocates the work table 5 in the axial direction of the main shaft 4 is mounted on a piston rod of the hydraulic cylinder 8. Then, the rail 7, the hydraulic cylinder 8, and the shifter 9
Constitutes a transfer mechanism, by which the work mounting table 5 is translated in the axial direction of the main shaft 4 between the inside and outside of the processing area.

A swivel table 10 is provided at the center of the swivel 6. The swivel table 10 is moved up and down by a hydraulic lifter (not shown).
Is rotated through the gear mechanism 12. The turntable 10, the hydraulic motor 11, and the reversing mechanism is constituted by the gear mechanism 12, the workpiece mounting table 5 is 180 ° reversed in a horizontal plane of the working area outside the same mechanism, the work mount
Two vertical planes of the table 5 with 180 degrees phase difference
That has become to face. The working table 2 is provided with a clamp 13 for holding the work mounting table 5 at a fixed position, and the swivel table 6 is provided with a block 14 for positioning the swivel table 10.

In the horizontal machining center having the above-described structure, first, the work mounting table 5 is arranged on the processing table 2, and the horizontally long work W on the work mounting table 5 is positioned inside the processing area.
Is machined by the main shaft 4. Next, when an inversion command is output, the clamp 13 is released, and
The hydraulic cylinder 8 is operated, and the work table 5 is carried out of the processing area along the rail 7 by the shifter 9. When it is confirmed that the work placing table 5 has stopped on the turning table 10, the turning table 10 is moved to the hydraulic motor 1.
The work placing table 5 is turned by 1 and positioned by the block 14, and the work placing table 5 is turned 180 ° in the horizontal plane. afterwards,
The work mounting table 5 is carried into the inside of the machining area via the shifter 9 by the hydraulic cylinder 8 serving as carrying-in / out means.
3 and the opposite surface of the horizontally long workpiece W is processed in this state.

In this case, since the work mounting table 5 can be inverted outside the processing area, there is no possibility of interference between the work mounting table 5 and the machine body such as the column 3 and the like. The two surfaces of the work W can be continuously processed by automatic operation. In addition, since setup can be performed at a stable place of the scaffold outside the processing area, safety is improved, and lifting work on the processing table 2 is not required,
The entire machine can be fully closed by the dustproof cover 15, and a horizontal machining center that is very advantageous in terms of chip control can be configured. It should be noted that a foot pedal may be provided on the swivel base 6 so that the swivel table 10 can be swung during work setting.

Next, a second embodiment of the present invention will be described with reference to FIGS.
It will be described according to. In the drawing, the same reference numerals as those in the first embodiment denote the same or corresponding members, and the differences will be described. The turning table 10 includes a pair of work mounting tables 5A,
5B is formed larger than that of the first embodiment so as to support 5B. The swivel table 6 is provided with moving means for moving the work mounting tables 5A and 5B on the swivel table 10. The moving means is a motor 16, a chain 17 driven by the motor 16, and mounted on the chain 17. Hanging piece 18
And a spline 19 for guiding the engaging piece 18 in the axial direction of the main shaft 4. Further, the swivel table 6 is provided with limit switches for indexing the work mounting tables 5A and 5B to four positions (positions a to d in FIG. 4) and clamps for fixing the work tables 5A and 5B to the respective positions. Not shown). On the opposite side of the spline 19, another spline 20 for rotating the shifter 9 and hanging it off the work mounting table 5 is provided.

FIG. 5 shows a horizontal machining center according to the second embodiment.
And APC acting as shown in FIGS.
(Automatic pallet change) operation is performed. FIG. 5 (a) One-sided machining of one workpiece mounting table 5A is completed. FIG. 5 (b) The work mounting table 5 </ b> A is transferred onto the turntable 10. FIG. 5 (c) The turning table 10 is turned to turn both the work mounting tables 5A and 5B by 180 °. FIG. 5D The other work mounting table 5B is carried into the processing area. FIG. 5 (e) During the one-sided machining of the work mounting table 5 B, the work mounting table 5 A is moved to the center of the turntable 10 (position c in FIG. 4).
Move to. FIG. 5 (f) The work mounting table 5A is turned over by 180 ° during the one-sided processing of the work mounting table 5B. FIG. 5 (g) The work placing table 5A is moved forward (position b in FIG. 4) of the turning table 10, and the work placing table 5B is moved onto the turning table 10. FIG. 5 (h) Both the work mounting tables 5A and 5B are turned 180 °.

FIG. 6 (i) The work mounting table 5A is carried into the processing area in an inverted state. FIG. 6 (j) The work mounting table 5 </ b> B is moved to the center of the turntable 10 during the processing of the opposite surface of the work mounting table 5 </ b> A. FIG. 6 (k) During the processing of the opposite surface of the work mounting table 5A, the work mounting table 5B is inverted by 180 °. FIG. 6 (l) The work mounting table 5B is moved to the front of the swivel table 10, and the work mounting table 5A after the two-side processing is transferred onto the swivel table 10. FIG. 6 (m) Both the work mounting tables 5A and 5B are inverted by 180 °. FIG. 6 (n) The work placing table 5B is carried into the machining area and the opposite surface is machined, and at the same time, the work placing table 5A is carried out from the turntable 10 to the position d in FIG.

As described above, according to the horizontal machining center of the second embodiment, the pair of work mounting tables 5A and 5B are alternately transferred from the turning table 10 to the processing area, and the other is reversed and moved during the processing of one. By repeating this, two-sided machining of two horizontally long workpieces can be continuously performed by automatic operation, and the non-machining time can be greatly reduced.

The present invention is not limited to the above-described embodiment. For example, the shape and configuration of each part may be appropriately changed without departing from the gist of the present invention, for example, by configuring the transfer mechanism with a chain or a ball screw. It is also possible to make it concrete.

[0019]

As described in detail above to the invention the effect of ## according to the invention of claim 1, after inverting the workpiece mounting table outside the machining area
Since it is configured to be carried into the inside of the machining area, there is an excellent effect that the horizontally long workpiece can be inverted and the two surfaces can be machined by automatic operation without increasing the size of the machine body.

According to the second aspect of the present invention, since the reversing mechanism is provided with a turning table large enough to support a pair of work mounting tables and moving means for moving the work mounting tables thereon. There is an effect that two-sided machining of a horizontally long workpiece can be continuously performed by automatic operation.

[Brief description of the drawings]

FIG. 1 is a plan view of a horizontal machining center showing a first embodiment of the present invention.

FIG. 2 is a side view of the machining center of FIG.

FIG. 3 is a front view of a horizontal machining center showing a second embodiment of the present invention.

FIG. 4 is a plan view of the machining center of FIG. 3;

FIG. 5 is an operation explanatory view of the machining center of FIG. 4;

FIG. 6 is an operation explanatory diagram subsequent to FIG. 5;

FIG. 7 is a perspective view of a conventional horizontal machining center.

[Explanation of symbols]

1. Bed, 2. Processing table, 3. Column, 4.
..Spindle, 5..Work table, 6..Rotating table, 7 ..
Rail, 8 ... hydraulic cylinder, 9 ... shifter, 10 ...
Turning table, 11 hydraulic motor, 12 gear mechanism, 13 clamp, 14 block, 15 dust cover, 16 motor, 17 chain, 18
・ Hanging pieces, 19, 20 ・ ・ Spline, W ・ ・ Long horizontal work.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B23Q 7/00 B23P 23/00

Claims (2)

(57) [Scope of request for utility model registration] 1. A work mounting table which is long in a direction orthogonal to a spindle axis, a transfer mechanism for moving the work mounting table in a direction parallel to the spindle axis between an inside and an outside of a processing area, and a transfer mechanism in a horizontal plane outside the processing area. the work rest to 180 ° inversion, the work
Two vertical planes of the mounting table that are 180 degrees out of phase
And a only that the reversing mechanism, the transfer mechanism, loading and unloading means for unloading the work rest after sided machining from inside the machining area to the outside and carries the work rest after reversal from outside the machining area on the inner side A horizontal machining center characterized by the following. 2. The reversing mechanism according to claim 1, further comprising: a turning table sized to support the pair of work mounting tables; and a moving unit for moving the work mounting table on the turning table. Horizontal machining center.