JPS628968Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a multi-spindle boring machine, and more particularly to a multi-spindle boring machine that can freely change the position of each spindle.

Conventional multi-spindle boring machines have multiple spindles attached to one feed table. For this reason, it is completely impossible to change the position of each spindle, and a dedicated multi-spindle boring machine must be prepared depending on the type of workpiece. Therefore, there is a problem in that the cost of the multi-spindle boring machine or the workpiece increases considerably.

The present invention was devised in view of these circumstances, and its purpose is to provide a multi-spindle boring machine that can freely change the position of each spindle. The gist of this is that in a multi-spindle boring machine that simultaneously performs boring at multiple locations on a workpiece set on a bed, (a) a first table that is slidable in the axial direction; (b) a plurality of second tables that are disposed on the first table and that are slidable in the horizontal Y-axis direction perpendicular to the X-axis; ) respectively arranged on the second table,
The present invention includes a plurality of third tables that are slidable in the vertical Z-axis direction, and (d) a plurality of main shafts respectively attached to the third tables.

An embodiment of the present invention will be described below based on the drawings. As shown in FIGS. 1 to 3, a fixing table 3 is disposed at the center of a bed 2 of a multi-spindle boring machine 1. As shown in FIGS. This fixing table 3 has three clamps 5 which are driven to open and close by a hydraulic cylinder 4, and the workpiece 6 is fixed to the fixing table 3 by these three clamps 5. Also provided on the bed 2 are a pair of front and rear guide rails 7 and 8 extending in the horizontal direction (X-axis direction) on both left and right sides of the fixing base 3, respectively. Slidable first tables 9 and 10 are disposed on the pair of guide rails 7 and 8, respectively. These first tables 9, 10 are configured to reciprocate in the X-axis direction by hydraulic cylinders (not shown), and the amount of movement of the first tables 9, 10 is regulated by limit switches (not shown). ing. Note that since the multi-spindle boring machine 1 is symmetrical with respect to the fixed base 3, only the left side portion in FIG. 1 will be described below.

As shown in FIGS. 2 to 4, a pair of left and right guide rails 11 and 12 extending in the horizontal direction (Y-axis direction) perpendicular to the X-axis are disposed on the first table 9. . A pair of slidable second tables 13 and 14 are disposed on the pair of guide rails 11 and 12. These second tables 13 and 14 are configured to reciprocate in the Y-axis direction by operating two handles 15 and 16, and the amount of movement of these second tables 13 and 14 is determined by an optical scale 17. It is automatically detected. Note that the second table 13 and 1
4, a fixed table 18 is fixedly arranged with respect to the first table.

On the sides of the second tables 13 and 14, there are
As shown in FIG. 4, a pair of third tables 19 and 20 that are slidable in the vertical direction (Z-axis direction) are provided. This pair of third tables 19,
20 is configured to move up and down in the Z-axis direction by operating two handles 21 and 22, and the amount of movement of the pair of third tables 19 and 20 is automatically detected by an optical scale 23. It is becoming more and more like this.

The fixed table 18 and the third table 1
9 and 20, main shafts 24 to 26 are respectively attached in the X-axis direction as shown in FIGS. 2 to 4. These three main shafts 24 to 26 are driven by three motors 27 to 29, respectively, and in detail, as shown in FIG.
7 and the main shaft 24 are mutually connected by a belt 30. Further, the motors 28 and 29 are installed on support stands 31 and 32 that are integrally attached to the third tables 19 and 20, respectively.
29 and the main shafts 25, 26 are two belts 33,
34 and an intermediate shaft 35.

In FIG. 2, reference numeral 36 denotes an operation box, which controls the drive of the hydraulic cylinder 4, motors 27 to 29, and hydraulic cylinders for moving the first tables 9 and 10, and controls the amount of cutting oil. It is now possible to make adjustments. Further, 37 is a display, to which the movement amounts of the second tables 13, 14 and third tables 19, 20 detected by the optical scales 17, 23 are inputted as electrical signals. ing. When the main shafts 25 and 26 move to predetermined positions, the input signal is compared with the set value stored in advance in the arithmetic unit of the display 37, and the display 37 displays "0". It is configured. Further, 38 indicates a control box, and 39 indicates a cutting oil tank.

The multi-spindle boring machine 1 is configured as described above,
Boring is performed by attaching a tool to the tips of the spindles 24 to 26. At this time, the main shafts 24 to 26 are fed in the X-axis direction by driving a hydraulic cylinder (not shown), and the main shafts 25 and 26 are moved in the Y-axis direction and the Z-axis direction by handles 15, 16, and 2, respectively.
This can be easily done with steps 1 and 22. Therefore, even if the type of workpiece 6 changes, boring can be performed using the same multi-spindle boring machine 1.

Although one embodiment of the present invention has been described above, the present invention is not limited to the structure shown in the above embodiment and can be modified in various ways. For example, in the above embodiment, the three main shafts 24 to 26 are arranged to face each other on the left and right sides, but it is of course possible to increase or decrease the number of main shafts as appropriate depending on the application. Further, in the above embodiment, the second tables 13, 14 and the third tables 19, 20 are moved manually, but they are moved automatically by a motor or the like, and are automatically positioned. It is also possible.

As mentioned above, the present invention is a multi-spindle boring machine that can freely move multiple spindles in the front and back, left and right, and up and down directions, so even if the type of workpiece changes, the same multi-spindle Boring can be performed using a boring machine, which increases versatility and reduces equipment costs and improves operating rates.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a front view of a multi-spindle boring machine, Fig. 2 is a sectional view taken along the line - - of Fig. FIG. 4 is an enlarged view of the main part of FIG. 2. 1...Multi-spindle boring machine, 2...Bed, 3...Fixed stand, 6...Workpiece, 7, 8, 11, 12...
Guide rail, 9, 10...first table, 13,
14...Second table, 15, 16, 21, 22
...Handle, 18...Fixed table, 19,2
0...Third table, 24-26...Main axis, 27
~29...Motor.

Claims (1)

[Scope of Claim for Utility Model Registration] In a multi-spindle boring machine that simultaneously performs boring at multiple locations on a workpiece set on a bed, (b) a plurality of second tables arranged on the first table and capable of sliding in the horizontal Y-axis direction orthogonal to the X-axis; c) a plurality of third tables each disposed on the second table and capable of sliding in the vertical Z-axis direction; and (d) a plurality of spindles respectively attached to the third table. A multi-spindle boring machine with the following features: