Straightness adjusting structure of machine tool workbench

Abstract

The utility model provides a machine tool workbench straightness adjusting structure, which comprises a base, a cross beam, a main shaft box and a workbench, the main shaft box is arranged on the cross beam, the base is arranged below the main shaft box, a guide rail is arranged on the base, a guide rail sliding block is arranged on the guide rail, an adjusting screw is arranged on the workbench, and the main shaft box is arranged on the cross beam. One end of the adjusting screw abuts against the guide rail sliding block, and the workbench is connected with the guide rail sliding block through a position locking screw. The device can be applied to a numerical control machine tool, so that the straightness adjustment of the workbench during installation is more convenient and reliable, the efficiency is higher, and the precision is kept for a longer time.

Description

Technical Field

[0001] The utility model relates to the field of numerical control machine tools, and particularly relates to a straightness adjusting structure for a machine tool workbench. Background Art

[0002] When manufacturing a numerical control machine tool, in order to improve the straightness of the workbench and achieve the overall quality of the numerical control machine tool, it is necessary to strictly control the straightness of the workbench of the numerical control machine tool and repeatedly install and debug the workbench. The straightness of the workbench is a basic index for measuring the accuracy of a numerical control machine tool. Due to its own weight, the installation and debugging efficiency of the straightness of the workbench is low. Now, a adjusting structure that is convenient for adjustment and maintenance is proposed for the link of adjusting the straightness of the workbench, so as to quickly and stably adjust the straightness of the workbench and thus shorten the production cycle of the machine tool.

[0003] Figure 1 The structural schematic diagram of the prior art is shown. Among them, the spindle box 3 is connected to the saddle 11, and the saddle 11 is installed on the cross beam 2. The cross beam 2 is locked to the base 1 by screws, the guide rail 5 is locked and installed on the base 1, and the workbench 4 is locked to the guide rail slider on the guide rail 5 by screws.

[0004] When correcting the straightness of the workbench, the dial indicator is adsorbed on the lower side in front of the spindle box 3. There are straightness requirements for the T-shaped groove of the workbench 4. The dial indicator is used to measure the side of the T-shaped groove of the workbench 4. By adjusting the workbench 4, the T-shaped groove and the guide rail 5 are made to be parallel to each other. However, during the measurement and correction process, it is necessary to finely adjust the installation position of the workbench 4 multiple times. Due to the material reason, the workbench 4 is too heavy, and it is too difficult and time-consuming to finely adjust its installation position manually. Summary of the Utility Model

[0005] The utility model provides a straightness adjusting structure for a machine tool workbench to solve at least one of the above technical problems.

[0006] To solve the above problems, as an aspect of the utility model, a straightness adjusting structure for a machine tool workbench is provided, including: a base, a cross beam, a spindle box and a workbench. The spindle box is arranged on the cross beam, the base is arranged below the spindle box, a guide rail is arranged on the base, a guide rail slider is arranged on the guide rail, an adjusting screw is arranged on the workbench, one end of the adjusting screw abuts against the guide rail slider, and the workbench is connected to the guide rail slider through a position locking screw.

[0007] Preferably, the adjusting screw is a flat-end set screw.

[0008] Preferably, an installation block protrudes downward on the outer side of the workbench, and a first screw hole for installing the adjusting screw is arranged on the installation block.

[0009] Preferably, a plurality of the guide rail sliders are arranged below the workbench.

[0010] Preferably, two of the adjusting screws are arranged on the guide rail slider.

[0011] Preferably, a through hole is arranged on the workbench, the position locking screw passes through the through hole and is in threaded connection with the second screw hole on the guide rail slider, and the diameter of the through hole is larger than the diameter of the second screw hole.

[0012] Preferably, an installation groove for installing and operating the position locking screw is arranged on the circumferential direction of the workbench.

[0013] Due to the adoption of the above technical solution, the utility model can be applied to a numerical control machine tool, so that the straightness adjustment during the installation of the workbench is more convenient and reliable, has higher efficiency, and can maintain the accuracy more durably. Description of the Drawings

[0014] Figure 1 Schematically shows the structural diagram of the prior art;

[0015] Figure 2 Schematically shows the structural diagram of the utility model;

[0016] Figure 3 Schematically shows the exploded view of the utility model;

[0017] Figure 4 Schematically shows the cross-sectional view of the utility model.

[0018] Reference numerals in the drawings: base 1; cross beam 2; spindle box 3; workbench 4; guide rail 5; guide rail slider 6; adjusting screw 7; position locking screw 8; mounting block 9; mounting groove 10; saddle 11; first screw hole 12; through hole 13; second screw hole 14. Detailed Description of the Embodiment

[0019] The following will describe the embodiments of the present utility model in detail, but the present utility model can be implemented in many different ways defined and covered by the claims.

[0020] As an aspect of the present utility model, a straightness adjustment structure for a machine tool workbench is provided, including: a base 1, a cross beam 2, a spindle box 3, and a workbench 4. The spindle box 3 is arranged on the cross beam 2, the base 1 is arranged below the spindle box 3, a guide rail 5 is arranged on the base 1, a guide rail slider 6 is arranged on the guide rail 5, an adjustment screw 7 is arranged on the workbench 4, one end of the adjustment screw 7 abuts against the guide rail slider 6, and the workbench 4 is connected to the guide rail slider 6 through a position locking screw 8. Preferably, the adjustment screw 7 is a flat end set screw. Preferably, a plurality of the guide rail sliders 6 are arranged below the workbench 4. Preferably, two adjustment screws 7 are arranged on the guide rail slider 6.

[0021] During the installation and debugging process, first install the guide rail 5 on the base 1 and make the guide rails 5 meet the straightness requirements. The guide rail slider 6 is arranged on the guide rail 5. Then, place the workbench 4 on the guide rail 5, bring the adjustment screw 7 without tightening it, and install the adjustment screw 7.

[0022] When adjusting the straightness of the workbench 4, adsorb the dial indicator on the lower side in front of the spindle box 3, and use the dial indicator to measure on the side of the T-slot of the workbench 4. Turn the adjustment screw 7 to adjust the position of the workbench 4 relative to the guide rail slider 6. For example, when the installation position of the workbench 4 needs to move outwards, the adjustment screw 7 on the workbench 4 can be turned in the reverse direction, and vice versa for the other one. Adjust repeatedly in this way to make the T-slot and the guide rail 5 reach a parallel state. The adjustment screw 7 on the workbench 3 does not need to be removed and remains in the state where the straightness of the workbench 4 is adjusted well, playing a role in maintaining the straightness. After the adjustment is completed, tighten the adjustment screw 7 to lock the position between the workbench 4 and the guide rail slider 6.

[0023] Due to the adoption of the above technical solution, the present utility model can be applied to a numerically controlled machine tool, making the straightness adjustment of the workbench during installation more convenient, reliable, with higher efficiency, and more durable accuracy retention.

[0024] Preferably, an installation block 9 is protrudingly arranged downward on the outer side of the workbench 4, and a first screw hole 12 for installing the adjustment screw 7 is arranged on the installation block 9. In this way, the installation block 9 is located outside the guide rail slider 6, facilitating the adjustment operation.

[0025] Preferably, a through hole 13 is arranged on the workbench 4, the position locking screw 8 passes through the through hole 13 and is threadedly connected to a second screw hole 14 on the guide rail slider 6. The diameter of the through hole 13 is larger than the diameter of the second screw hole 14. In this way, the through hole 13 can provide a moving space for the micro-position movement of the workbench 4.

[0026] Preferably, an installation groove 10 for installing and operating the position locking screw 8 is provided circumferentially on the workbench 4. After the workbench 4 is adjusted, the position locking screw 8 can be tightened through the installation groove 10, so as to lock the position between the workbench 4 and the guide rail slider 6.

[0027] The utility model has the following advantages: (1) It can adjust quickly and stably and effectively maintain the straightness of the workbench of the numerical control machine tool; (2) It effectively shortens the time for adjusting the straightness of the workbench of the numerical control machine tool, thereby shortening the production cycle of the machine tool.

[0028] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A machine tool worktable straightness adjustment structure, characterized in that: include: A base (1), a crossbeam (2), a spindle box (3) and a workbench (4), wherein the spindle box (3) is arranged on the crossbeam (2), the base (1) is arranged below the spindle box (3), the base (1) is provided with a guide rail (5), the guide rail (5) is provided with a guide rail slider (6), the workbench (4) is provided with an adjusting screw (7), one end of the adjusting screw (7) is in contact with the guide rail slider (6), and the workbench (4) is connected to the guide rail slider (6) via a position locking screw (8).

2. The machine tool table straightness adjustment structure according to claim 1, characterized in that: The adjusting screw (7) is a flat-end set screw.

3. The machine tool table straightness adjustment structure according to claim 1, characterized in that: A mounting block (9) is provided on the outer side of the workbench (4) so ​​as to protrude downwards, and a first screw hole (12) for mounting the adjusting screw (7) is provided on the mounting block (9).

4. The machine tool table straightness adjustment structure according to claim 1, characterized in that: A plurality of guide rail sliders (6) are arranged below the workbench (4).

5. The machine tool table straightness adjustment structure according to claim 1, characterized in that: The guide rail slider (6) is provided with two adjusting screws (7).

6. The machine tool table straightness adjustment structure according to claim 1, characterized in that: The workbench (4) is provided with a through hole (13), the position locking screw (8) passes through the through hole (13) and is threadedly connected to the second screw hole (14) on the guide rail slider (6), and the hole diameter of the through hole (13) is larger than the diameter of the second screw hole (14).

7. The machine tool table straightness adjustment structure according to claim 1, characterized in that: The workbench (4) is provided with a mounting groove (10) around its periphery for mounting and operating the position locking screw (8).

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