Numerical control machine tool body

Abstract

The utility model discloses a numerical control machine tool body which is characterized by comprising a machine tool body, guide rails which are arranged on the machine tool body in a high-low matching mode, and a calibration structure which is arranged on the machine tool body and facilitates rapid assembly and calibration of the guide rails. Wherein one calibration structure comprises a base station which is arranged on the bed body and is used for loading the guide rail, a limiting reference surface which is matched with the base station and is convenient for mounting the guide rail, and an adjusting calibration assembly which is arranged on the bed body and is positioned on one side of the base station; the adjusting and calibrating assembly comprises a horizontal end face convenient to machine, a calibrating base installed on the horizontal end face and a calibrating bolt which is installed on the calibrating base, abuts against the guide rail to be attached to the limiting datum plane and can calibrate and adjust the straightness of the guide rail so as to improve the linear precision of the guide rail, the limiting datum plane and the base table. Through the arrangement of the calibration structure, the problem that the process difficulty is large when a trapezoidal groove is machined in a bed body of a high-low structure is solved, a simple horizontal end face is machined, the machining process difficulty of the bed body of the high-low structure is reduced, and the adjustment and calibration efficiency of the guide rail is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to a bed of a numerical control machine tool. Background Art

[0002] CNC machine tools process workpieces by driving a turret on a guide rail, thereby being able to process a variety of high-precision mechanical parts. When the guide rail is produced, transported, and finally assembled on a bed, the guide rail may bend uncontrollably or undergo slight deformation during transportation. In the prior art, when the guide rail is assembled on a bed, a wedge key is usually used to calibrate the guide rail, which requires that a trapezoidal groove that matches the wedge key be machined during bed machining, especially for some beds with high and low guide rails. The machining process for machining a trapezoidal groove on a bed has relatively high requirements. When the machining accuracy of the trapezoidal groove of the bed does not meet the standards, the wedge block cannot be assembled in place, resulting in inadequate calibration of the guide rail, causing a decrease in the machining accuracy of the lathe. On the other hand, it is necessary to separately install a number of wedge keys in the trapezoidal groove, and to install the wedge block on the trapezoidal groove by bolts and squeeze the side of the guide rail to achieve calibration. The entire process is relatively cumbersome. Therefore, it is necessary to propose a CNC machine tool bed. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems and to provide a CNC machine tool bed.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: its characteristics include a bed body, guide rails installed on the bed body with matching heights, and a calibration structure installed on the bed body for facilitating rapid assembly and calibration of the guide rails, wherein one calibration structure includes a base set on the bed body for loading the guide rails, a limit reference surface matched with the base body for facilitating the installation of the guide rails, and an adjustment calibration component set on the bed body and located on one side of the base body, wherein the adjustment calibration component includes: a horizontal end surface that is easy to process, a calibration block installed on the horizontal end surface, and a calibration bolt installed on the calibration block to tighten the guide rail to fit the limit reference surface, and capable of calibrating and adjusting the straightness of the guide rail, thereby improving the linear accuracy of the guide rail, the limit reference surface and the base body.

[0005] Preferably, the width of the guide rail is greater than the width of the base, the height of the calibration block is higher than the base and there is an adjustable gap between the side and the guide rail.

[0006] Preferably, the calibration block is a rectangular block in the shape of a bar or rod.

[0007] Preferably, the calibration block is provided with a mounting hole connected to the horizontal end surface.

[0008] Preferably, the guide rail is provided with an assembly hole connected to the base.

[0009] Preferably, another calibration structure of the calibration structure further includes a trapezoidal groove arranged on the bed body, and a wedge block installed on the trapezoidal groove for calibrating the guide rail.

[0010] The beneficial effects of the utility model are as follows: by setting the calibration structure, the problem of high process difficulty in processing trapezoidal grooves on a bed with a high-low structure is solved, and a simple horizontal end surface is processed, which reduces the process difficulty of the bed with a high-low structure, improves the efficiency of adjusting and calibrating the guide rails, and thus improves the processing accuracy of the lathe;

[0011] By setting the limit reference surface, the guide rail is closely attached to the limit reference surface after assembly, thereby improving the assembly accuracy of the guide rail;

[0012] By setting the horizontal end surface, the processing technology of the bed with high and low structure is changed, which facilitates the rapid installation of the calibration block;

[0013] By setting the calibration bolts, rotating the calibration bolts to contact the side of the guide rail, and through the different amounts of extrusion between each calibration bolt and the side of the guide rail, precise installation of the guide rail can be achieved. The operation is simple and convenient, which helps to improve the installation efficiency of the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is an enlarged schematic diagram of the structure at A of the utility model;

[0016] Figure 3 It is a cross-sectional schematic diagram of the calibration structure of the utility model;

[0017] Figure 4 It is a schematic diagram of another cross-sectional structure of the calibration structure of the utility model.

[0018] Markings in the figure: 1 bed, 2 guide rail, 21 assembly hole, 30 base, 31 limit reference surface, 32 horizontal end surface, 33 calibration block, 34 calibration bolt, 35 mounting hole, 40 trapezoidal groove, 41 wedge block. DETAILED DESCRIPTION

[0019] Below we further illustrate the CNC machine tool bed of the utility model through embodiments and in conjunction with the accompanying drawings.

[0020] See also Figures 1 to 3As shown, the utility model proposes a CNC machine tool bed, which is characterized by comprising a bed 1, a guide rail 2 mounted on the bed 1 at a matching height, and a calibration structure mounted on the bed 1 for facilitating rapid assembly and calibration of the guide rail 2, wherein one calibration structure comprises a base 30 mounted on the bed 1 for loading the guide rail 2, a limit reference surface 31 matched with the base 30 for facilitating installation of the guide rail 2, and an adjustment calibration component arranged on the bed 1 and on one side of the base 30, wherein the adjustment calibration component comprises: a horizontal end surface 32 for facilitating machining, an installation The calibration block 33 mounted on the horizontal end surface 32 and the calibration bolt 34 mounted on the calibration block 33 to tighten the guide rail 2 to fit on the limit reference surface 31 and can calibrate and adjust the bending straightness of the guide rail 2 to improve the linear accuracy of the guide rail 2, the limit reference surface 31 and the base 30. The width of the guide rail 2 is greater than the width of the base 30. The height of the calibration block 33 is higher than the base 30 and the side has an adjustable gap with the guide rail 2. The calibration block 33 is a rectangular block in the shape of a bar or a rod. The calibration block 33 is provided with The guide rail 2 is provided with an assembly hole 21 connected to the base 30, and the installation hole 35 connected to the horizontal end face 32 is provided on the guide rail 2; by setting the calibration structure, the problem of high process difficulty in processing the trapezoidal groove of the high-low structure bed 1 is solved, and the horizontal end face 32 with simple processing is changed, which reduces the processing difficulty of the high-low structure bed 1, improves the adjustment and calibration efficiency of the guide rail 2, and thus improves the processing accuracy of the lathe; by setting the limit reference surface 31, the guide rail 2 is closely attached to the limit reference surface 31 after assembly, and the assembly accuracy of the guide rail 2 is improved; by setting the horizontal end face 32, the processing technology of the high-low structure bed is changed, and it only needs to be processed into a plane, and the processing technology is simple, which facilitates the rapid installation of the calibration block 33; by setting the calibration bolt 34, the calibration bolt 34 is rotated so that the calibration bolt 34 contacts the side of the guide rail 2 after passing through the calibration block 32, and the guide rail 2 is accurately installed by different extrusion amounts between each calibration bolt 34 and the side of the guide rail 2, which is simple and convenient to operate and helps to improve the installation efficiency of the guide rail 2.

[0021] As attached Figure 4 As shown, another calibration structure of the calibration structure also includes a trapezoidal groove 40 arranged on the bed 1, and a wedge block 41 installed on the trapezoidal groove 40 for calibrating the guide rail 2; a plurality of wedge blocks 41 are installed in the trapezoidal groove 40 by bolts, and the rotating bolts drive the wedge blocks 41 to move downward along the trapezoidal groove 40, so that the side of the wedge block 41 squeezes the guide rail 2, thereby adjusting and calibrating the guide rail 2.

[0022] When assembling the present invention, first place the guide rail 2 on the base 30, pass the bolts through the assembly holes 21 to pre-fix and connect with the base 30, so that the guide rail maintains a certain range of motion on the base 30, then pass the bolts through the mounting holes 35 to install and fix several calibration blocks 33 on the horizontal end surface 32. At this time, there is an adjustment gap between the calibration bolts 34 and the side of the guide rail 2, and the calibration bolts 34 are rotated so that the calibration bolts 34 pass through the calibration blocks 32 and contact and squeeze the side of the guide rail 2. At the same time, observe the fit between the other side of the guide rail 2 and the limit reference surface 31, so that the other side of the guide rail 2 is tightly attached to the limit reference surface 31, and the same method is used to adjust the other calibration bolts 34 to make the entire guide rail 2 close to the limit reference surface 31. At this time, tighten the bolts on the assembly holes 21 in sequence, and fix the guide rail on the base 30, thus completing the quick and precise installation of the guide rail 2.

[0023] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A CNC machine tool bed, characterized in that it comprises a bed (1), a guide rail (2) mounted on the bed (1) in a matching manner, and a calibration structure mounted on the bed (1) to facilitate quick assembly and calibration of the guide rail (2), wherein one calibration structure comprises a base (30) mounted on the bed (1) to load the guide rail (2), a limit reference surface (31) matched with the base (30) to facilitate installation of the guide rail (2), and an adjustment calibration component arranged on the bed (1) and located on one side of the base (30), wherein the adjustment calibration component comprises: A horizontal end surface (32) that is easy to process, a calibration block (33) mounted on the horizontal end surface (32), and a calibration bolt (34) mounted on the calibration block (33) to tighten the guide rail (2) to fit on the limit reference surface (31) and capable of calibrating and adjusting the straightness of the guide rail (2) to improve the linear accuracy of the guide rail (2), the limit reference surface (31) and the base (30).

2. A CNC machine tool bed according to claim 1, characterized in that: The width of the guide rail (2) is greater than the width of the base (30); the height of the calibration block (33) is higher than the base (30) and there is an adjustable gap between the side surface and the guide rail (2).

3. The CNC machine tool bed according to claim 2, characterized in that: The calibration block (33) is a rectangular block in the shape of a bar or a rod.

4. The CNC machine tool bed according to claim 1, characterized in that: The calibration block (33) is provided with a mounting hole (35) connected to the horizontal end surface (32).

5. The CNC machine tool bed according to claim 1, characterized in that: The guide rail (2) is provided with an assembly hole (21) connected to the base (30).

6. The CNC machine tool bed according to claim 1, characterized in that: Another calibration structure of the calibration structure also includes a trapezoidal groove (40) arranged on the bed body (1), and a wedge-shaped block (41) installed on the trapezoidal groove (40) for calibrating the guide rail (2).

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