KR100304598B1 - A table supportor of the horizontal machining center - Google Patents

Abstract

In the present invention, in the horizontal machining center, it is possible to prevent the inclination of the vertical table during machining to obtain the same precision for each workpiece fixed to the upper and lower portions of the table, and also to the upper side of the single workpiece fixed to the table. The present invention relates to a table support for a horizontal machining center which can prevent the precision of a part from falling. The configuration thereof is as follows.

A horizontal machining center comprising a base mounted on an upper side of a bed and moving in the Z axis, a fixed part positioned in the middle thereof, and a rotating part mounted thereon, and a work mounting part including a vertical table mounted on an upper surface of the rotating part; A center hole is machined on the upper surface of the vertical table, and a body consisting of a side frame and a horizontal frame is mounted on the upper side of the base, and a fixing part of the workpiece mounting part is installed between the side frames, and in the center of the horizontal frame. It is characterized in that the table fixture is mounted.

Description

Table support for horizontal machining centers {A table supportor of the horizontal machining center}

The present invention relates to a table support for a horizontal machining center, and in more detail, the same precision can be obtained for each workpiece fixed to the upper and lower parts of the table by preventing the inclination of the vertical table during machining. Of course, the present invention relates to a table support for a horizontal machining center which can prevent the precision of the upper portion from falling against a single workpiece fixed to the table.

In general, the Machining Center refers to a machine tool that is equipped with an automatic tool changer and performs various machining operations in lathes, milling, drilling and boring machines by exchanging various types of tools. It is divided into a vertical machining center in which the main shaft is mounted vertically and a horizontal machining center in which the main shaft is mounted horizontally. The workpiece support of the present invention is applied to the horizontal machining center.

4 is a schematic perspective view showing a conventional horizontal machining center, in which a bed 1 on which a workpiece mounting portion 2 moved on the Z axis is mounted, and a column positioned on one side of the bed 1 and moved on the Y axis. (3) and a headstock (4) mounted horizontally in front of the column (3), moved in the X-axis, and equipped with cutting tools.

In particular, the workpiece mounting portion 2 is provided with a base 21 which is mounted on the upper side of the bed 1 and moved in the Z-axis, and the fixing portion 22 in which the rotating part 23 is placed on the upper side. Is mounted, the upper surface of the rotating unit 23 is a vertical table 24 is formed by a pallet (P) formed with a plurality of T grooves 241 on each side to fix the workpiece in all directions.

That is, two or more surfaces can be processed without changing the work preparation in the vertical table 24 through a splitter (not shown) mounted below the rotary part 23.

Accordingly, when machining is performed through the machining center, the column 3 is moved to the Y axis, the main axis 4 is moved to the X axis, and the workpiece is processed while the vertical table 24 is moved to the Z axis. Will be.

However, in the machining center configured as described above, as shown in FIG. 5, the workpiece and the lower portion L located in the upper portion H with respect to each workpiece W fixed to the vertical table 24 first. Comparing the machining conditions of the workpiece located at), the upper part (H) has a weaker holding force than the processing pressure (P) of the tool, and the lower part (L) has a relatively high holding force compared to the working pressure (P) of the spindle. strong.

Therefore, during machining, the upper portion H of the vertical table 24 is inclined, so that the same precision can be obtained for each workpiece W fixed to the upper and lower portions H and L of the vertical table 24. I had a difficult problem.

In addition, since the vertical table is inclined during processing as described above, there is also a problem that high precision machining is impossible for a single workpiece.

Accordingly, the present invention has been invented to solve the above-mentioned conventional problems, and by providing a table support for fixing the upper side of the vertical table in the horizontal machining center, to prevent the upper portion of the vertical table inclined during processing Therefore, it has the purpose of enabling the machining of the same precision for each workpiece fixed to the upper and lower portions of the vertical table.

In addition, by preventing the vertical table from inclining, it is also intended to be able to perform a high-precision machining on a single workpiece fixed to the vertical table.

In addition, in the pallet exchange area, only the workpiece mounting part is detached from the table support, thereby automatically increasing the pallet change.

The present invention for achieving the above object is composed of a base which is raised on the upper side of the bed and moved in the Z-axis, a fixed part which is located in the middle of the rotating part, and a vertical table mounted on the upper surface of the rotating part A horizontal machining center comprising a workpiece mount; A center hole is machined on the upper surface of the vertical table, and a body consisting of a side frame and a horizontal frame is mounted on the upper side of the base, and a fixing part of the workpiece mounting part is installed between the side frames, and in the center of the horizontal frame. It is characterized in that the table fixture is mounted.

1 is a partially exploded view showing a machining center equipped with a table support of the present invention.

Perspective view.

Figure 2 is a partial incision showing a machining center equipped with a table support of the present invention

Cross-section.

3 is an enlarged view of a portion A of FIG. 2;

Figure 4 is a schematic perspective view of a conventional machining center.

5 is a schematic side view showing a conventional machining center.

Explanation of symbols for main parts of the drawings

1: Bed

2: workpiece mounting

21: Base

22: fixed part

23: rotating part

24: vertical table

241 T groove

242: Center Hall

3: column

4: headstock

5: body

51: side frame

511: fixing bracket, 512: front expectations, 513: rear expectations,

514: horizontal bar, 515: reinforcing rib

52: horizontal frame

521: side bar, 522: front bar, 523: rear bar, 524: table fixing part,

525: mounting plate, 526: mounting hole, 527: horizontal rib,

528: arc rib

6: table fixture

61: housing

62: center axis

63: spiral axis

64: handle

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic view showing a machining center provided with a workpiece support of the present invention, the configuration of which is as follows.

First, a general machining center includes a bed 1 on which a workpiece mounting part 2 moving on the Z axis is mounted, a column 3 located on one side of the bed 1 and moving on the Y axis, and this column 3 It is composed of a headstock (4) which is mounted horizontally in front of the () is moved in the X-axis and the cutting tool is mounted.

In addition, the workpiece mounting portion 2 is provided with a base 21 which is mounted on the upper side of the bed 1 and moved in the Z axis, and in the middle thereof, the fixing part 22 in which the rotating part 23 is placed on the upper side. Is mounted on the upper surface of the rotating part (23) so that a vertical table (24) having a plurality of T grooves (241) formed on each surface so as to fix the work in all directions is mounted by a pallet (P);

The center hole 242 is machined in the center of the upper surface of the vertical table 24, the body 5 consisting of the side frame 51 and the horizontal frame 52 is mounted on the upper side of the base 21, the side A fixed part of the workpiece mounting part 2 which is movable in the Z axis separately from the base 21 is provided between the frames 51, and is formed on the upper surface of the vertical table 24 at the center of the horizontal frame 52. Table fixture 6 is inserted into the center hole 242 is characterized in that it is mounted.

In particular, the body 5, which is fastened and fixed to the upper side of the base 21 constituting the workpiece mounting portion 2, consists of the side frame 51 located on both sides and the horizontal frame 52 located on the upper side. .

Therefore, the side frame 51 is located in the lower portion of the fixed bracket 511 to be fastened to the base 21 and the front and rear stages (512,513) and the front and rear stages formed in front and rear of the fixed bracket 511, respectively. Horizontal bars 514 formed on the upper sides of the 512 and 513 are integrally formed, and a plurality of reinforcing ribs 515 are integrally formed between the front and rear stages 512 and 513.

The horizontal frame 52, which is located on the upper side of the side frame 51, is located on both sides and is located in the front and rear of the side bar 521 and the side bar 521 fastened to the upper portion of the horizontal bar 514 The rear bars 522 and 523 are integrally formed, and a mounting plate 524 having an assembling hole 525 is formed at the center thereof so that the table fixture 6 can be mounted therein, and a plurality of horizontal ribs 526 and arc ribs 527. It is fixed through.

Meanwhile, as shown in FIG. 3, the table fixture 6 includes a housing 61 fixed to the mounting plate 254, a center shaft 62 passing through the center of the housing 61, and a center. It is made of a spiral shaft 63 and a handle 64 protruded outward so that the protrusion length of the shaft 62 can be adjusted.

Hereinafter, when fixing the vertical table 24 by using the body 5 and the table fixture 6 configured as described above, as shown in Figure 1 to Figure 3, first, the lower portion in the table fixture 6 The position of the center hole 242 formed in the upper surface of the vertical table 24 in which the lower part is fixed to the center axis | shaft 62 which protrudes into the workpiece mounting part 2 is set to be the same.

Thereafter, the handle 64 of the table fixture 6 mounted on the body 5 is rotated forward to lower the center shaft 62 which protrudes downward, so that the end of the center shaft 62 is vertical. The upper portion of the vertical table 24 can be fixed by being inserted into the center hole 242 formed on the upper surface of the 24.

Therefore, in each work W fixed to the vertical table 23, when the work state of the work W of the upper part H and the work W of the lower part L are compared, The fixing force of the upper and lower portions H and L is the same with respect to the processing pressure applied to the lower portions H and L, thereby preventing the inclination of the vertical table 23 during processing.

On the other hand, in the case of replacing the vertical table 23 as shown in Figure 2, first, after automatically or manually releasing the table fixture mounted on the upper side of the body 5, the body 5 is processed It stops in the area section and operates the Z-axis servomotor to discharge the workpiece mounting part 2 mounted inside the body 5 to the pallet changing area (APC section) to automatically change the pallet (P). .

The present invention as described above has the effect of preventing the inclination of the vertical table during processing to produce products having the same precision for each workpiece fixed to the upper and lower portions of the vertical table.

In addition, when machining a single workpiece fixed to the vertical table, it is possible to perform a high-precision machining, it also has the effect of preventing the precision of the upper portion in the single workpiece is lowered.

In addition, in the pallet exchange area, only the workpiece mounting portion is detached from the table support, thereby having an effect of automatically increasing pallet exchange.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible.

Claims (4)

The base 21, which is lifted on the upper side of the bed 1 and moved in the Z axis, the fixing part 22 which is positioned in the middle thereof, and the rotating part 23 is raised, and the workpiece is placed on the upper surface of the rotating part 23 in all directions. In a horizontal machining center comprising a workpiece mounting portion 2 is formed by mounting a vertical table (24) having a plurality of T grooves (241) on each side so as to be fixed by a pallet (P); The center hole 242 is machined in the center of the upper surface of the vertical table 24, the body 5 consisting of the side frame 51 and the horizontal frame 52 is mounted on the upper side of the base 21, the side Between the frame 51, a fixed portion 22 of the workpiece mounting portion 2 that is movable in the Z axis separately from the base 21 is provided, the vertical table 24 in the center of the horizontal frame (52) Table support for a horizontal machining center, characterized in that the table fixture 6 is inserted into the center hole 242 formed on the upper surface of the. According to claim 1, wherein the side frame (51) is located in the lower portion of the fixed bracket 511 to be fastened to the base 21 and the front and rear waiting brackets formed on the front and rear of the fixed bracket 511 (512,513) ) And horizontal bars 514 formed above the front and rear stages 512 and 513 are integrally formed, and a plurality of reinforcing ribs 515 are integrally formed between the front and rear stages 512 and 513. Table support for horizontal machining centers. The front and rear bars 522 and 523 of claim 1, wherein the horizontal frame 52 is positioned at both sides and is positioned in front and rear of the side bar 521 and the side bar 521 fastened to the upper portion of the horizontal bar 514. Is integrally formed, and the mounting plate 524 in which the assembly hole 525 is formed is fixed at the center through a plurality of horizontal ribs 526 and arc-shaped ribs 527. Table support for horizontal machining centers. According to claim 1, The table fixture (6), the housing 61 is fixed to the mounting plate 524, the center shaft 62 protrudes downward through the center of the housing 61, Horizontal machining center table support for adjusting the protruding length of the center shaft 62, characterized by consisting of a spiral shaft 63 and a handle 64 protruding outward.