Numerical control machine tool fine adjustment device capable of improving machining precision

Abstract

The utility model relates to the technical field of numerical control machine tools, in particular to a numerical control machine tool fine adjustment device capable of improving machining precision, which comprises a machine tool body and a tool rest, the tool rest is arranged on the machine tool body, a horizontal adjustment device is arranged on the machine tool body and used for adjusting movement of a movable table, and a slewing bearing is arranged on the movable table. A driving device is arranged in the slewing bearing and drives a workbench arranged on the slewing bearing to rotate. The utility model solves the problems that the existing machine tool lacks an effective fine adjustment function and the adjustment precision of workpiece processing is limited.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control machine tool technical field especially relates to numerical control machine tool fine adjustment device of improving machining accuracy. BACKGROUND

[0002] In modern manufacturing industry, numerical control machine tools as key equipment are widely used in the manufacturing process of various precision parts. With the development of industrial technology and the continuous improvement of product quality requirements, the requirement for the machining accuracy of numerical control machine tools is increasingly strict. However, the traditional numerical control machine tools face several challenges in practical application, especially the problem of insufficient moving accuracy is particularly prominent. Although many existing numerical control machine tools can realize basic three-axis or more-axis moving control, the tool is difficult to achieve ideal positioning accuracy during fine machining. In addition, the design of some existing machine tool adjusting devices is not fine enough, and lacks effective fine adjustment function, which further limits the position adjustment accuracy in the workpiece machining process. These problems not only affect the quality of the final product, but also restrict the production efficiency of complex high-precision parts to some extent.

[0003] The utility model provides a numerical control machine tool fine adjustment device that improves machining accuracy to solve the problem that the existing machine tool lacks effective fine adjustment function and limits the adjustment accuracy of workpiece machining. UTILITY MODEL CONTENTS

[0004] The utility model provides a numerical control machine tool fine adjustment device that improves machining accuracy to solve the problem that the existing machine tool lacks effective fine adjustment function and limits the adjustment accuracy of workpiece machining.

[0005] A numerical control machine tool fine adjustment device that improves machining accuracy: including bed and tool rest, the tool rest sets up on the bed, the horizontal adjusting device is set up on the bed, the horizontal adjusting device is used for adjusting the movement of the moving platform, the slewing bearing is set up on the moving platform, the driving device is set up in the slewing bearing, the driving device drives the workbench rotation that sets up on the slewing bearing.

[0006] On the basis of the above technical scheme, the horizontal adjusting device includes y axis adjusting device and x axis adjusting device, the y axis adjusting device includes y axis motor and y axis connecting piece that set up on the bed, the output end of y axis motor is connected y axis screw rod, y axis connecting piece is sleeved on y axis screw rod and is connected with y axis screw rod screw, the support rod is fixedly connected on y axis connecting piece, and the support rod is fixedly connected on the moving rod.

[0007] Further, the x axis adjusting device includes x axis motor and x axis connecting piece, the output end of x axis motor is connected x axis screw rod, x axis connecting piece is sleeved on x axis screw rod and is connected with x axis screw rod screw, the guide rail is set up on the moving rod, x axis connecting piece and guide rail are connected slidingly, and the adjusting moving platform is connected on x axis connecting piece.

[0008] Preferably, a protective cover is arranged on the x-axis screw.

[0009] Advantages

[0010] Compared with the prior art, the utility model has the advantages of fine adjustment capability: the horizontal adjusting device can finely adjust the position of the workbench, so that the workpiece can realize high-precision position adjustment during machining, further improving the quality of the final product; and precise rotation control: the driving device arranged in the slewing bearing can realize precise rotation of the workbench, meeting the demand for angle adjustment during machining of complex-shaped parts and ensuring the angle precision during machining. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only an embodiment of the present application, and for those skilled in the art, other drawings can be obtained from the provided drawings without creative labor.

[0012] Figure 1 : the structure schematic diagram of the utility model;

[0013] Figure 2 : the structure schematic diagram of the horizontal adjusting device;

[0014] Figure 3 : the position schematic diagram of the protective cover;

[0015] Figure 4 : the installation schematic diagram of the slewing bearing and the driving device;

[0016] Figure 5 : the driving schematic diagram of the driving device. DETAILED DESCRIPTION

[0017] The present application will be further described below in conjunction with the drawings and examples:

[0018] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0019] In the description of the utility model, it needs to be explained that, unless there is definite stipulation and limitation, the terms "mount", "connect", "connection" should be understood in broad sense, for example, it can be fixed connection, also can be detachable connection, or integrally connected, it can be direct connection, also can be indirectly connected through intermediate medium.

[0020] In the description of the utility model, it needs to be understood that, the orientation or position relation indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0021] As shown in Figure 1 A fine adjustment device of numerical control machine tool for improving machining precision, including bed 1 and tool rest 2, the tool rest 2 is fixed on the bed 1 by a set of high-precision linear guide rails, allows tool rest 2 to move along X axis, Y axis and Z axis, the horizontal adjusting device 3 is arranged on the bed 1, the horizontal adjusting device 3 is used to adjust the movement of moving platform 4, the slewing bearing 5 is arranged on the moving platform 4, the driving device 51 is arranged in the slewing bearing 5, the driving device 51 drives the workbench 6 arranged on the slewing bearing 5 to rotate.

[0022] Tool rest 2 is fixed on the bed 1 by a set of high-precision linear guide rails, and allows it to move along X axis, Y axis and Z axis. This structure is the prior art well known to those skilled in the art, and the specific structure will not be described again.

[0023] As shown in Figure 2 The horizontal adjusting device 3 includes y-axis adjusting device and x-axis adjusting device, the y-axis adjusting device includes y-axis motor 31 and y-axis connecting piece 33 arranged on the bed 1, the output end of y-axis motor 31 is connected with y-axis screw rod 32, the y-axis connecting piece 33 is sleeved on y-axis screw rod 32 and is in threaded connection with y-axis screw rod 32, the support rod 34 is fixedly connected on the y-axis connecting piece 33, and the support rod 34 is fixedly connected on the moving rod 35.

[0024] Y-axis screw rod 32 is driven by y-axis motor 31, and the precise control of the position of moving platform 4 can be realized by using the threaded connection between y-axis connecting piece 33 and y-axis screw rod 32. The rotation of the motor is converted into the rotation of the screw rod, which in turn drives the y-axis connecting piece 33 to drive the moving support rod 34, and then drives the moving platform 4 to move linearly along the y-axis direction.

[0025] The x-axis adjusting device comprises an x-axis motor 36 and an x-axis connecting piece 38. The output end of the x-axis motor 36 is connected with an x-axis screw rod 37. The x-axis connecting piece 38 is sleeved on the x-axis screw rod 37 and is in threaded connection with the x-axis screw rod 37. A guide rail is arranged on the moving rod 35. The x-axis connecting piece 38 is in sliding connection with the guide rail. The x-axis connecting piece 38 is connected with the adjusting moving platform 4. The x-axis motor 36 drives the x-axis screw rod 37. The threaded connection between the x-axis connecting piece 38 and the x-axis screw rod 37 can realize accurate adjustment of the position of the moving platform 4. The rotary motion of the motor is converted into the rotation of the x-axis screw rod, which further drives the moving platform 4 to move linearly along the x-axis direction.

[0026] The y-axis adjusting device and the x-axis adjusting device adopt a modular design. The components are easy to disassemble and replace, which facilitates daily maintenance and repair work. This helps to reduce downtime and improve production efficiency.

[0027] As shown in Figure 3 , the x-axis adjusting device is provided with two x-axis motors 36. The use of double-motor configuration can significantly increase the total driving force of the driving system. This makes the system more easily move heavier loads or perform faster positioning operations, especially in handling large workpieces or applications requiring high acceleration.

[0028] A protective cover 371 is arranged on the x-axis screw rod 37. The protective cover can effectively prevent dust, cuttings and other impurities from entering the inside of the screw rod mechanism, reduce the wear of the screw rod and the nut caused by these pollutants, and prolong the service life. The protective cover 371 is detachably connected with the x-axis screw rod 37.

[0029] As shown in Figure 4 and Figure 5 , the rotary support 5 is installed on the housing 52. A driving device 51 is arranged on the housing 52. The output end of the driving device 51 is connected with a driving gear 53. The driving gear 53 is in engagement with a first gear 54. The driving gear 53 and the pinion gear 55 are both arranged on a rotating rod 56.

[0030] The output end of the driving device 51 is connected with the driving gear 53, which is in engagement with the first gear 54, forming a set of precise gear transmission system. Such design can ensure that the workbench 6 has very high positioning accuracy and repeatability when rotating.

[0031] The slewing bearing 5 includes an outer ring, an inner ring, and rolling elements disposed between the outer ring and the inner ring. A gear ring 57 is disposed within the inner ring and is fixedly connected to the inner ring. The gear ring 57 is engaged with a pinion gear 55, and the inner ring is connected to the worktable 6. By using rolling elements such as balls or rollers, the slewing bearing can provide support while allowing very smooth relative rotation between the inner and outer rings. This helps to achieve high-precision rotational positioning of the worktable 6. The engagement of the gear ring 57 with the pinion gear 55 provides precise angular adjustment functionality. By driving the pinion gear to rotate using the drive device 51, fine adjustment of the angular position of the worktable 6 can be achieved, meeting the needs of different angles during the machining of complex parts.

[0032] The worktable 6 is provided with a clamp for clamping a workpiece. By using the clamp to fix the workpiece, it can ensure that the workpiece remains stable during the entire machining process, reducing positional deviations caused by movement or vibration of the workpiece, thereby improving machining accuracy.

[0033] Through precise adjustment in the X-axis and Y-axis directions, precise positioning of the workpiece at any position on the horizontal plane can be achieved. This is particularly important for machining tasks that require fine positioning of the workpiece. The ability of the worktable to rotate means that the machining angle of the workpiece can be changed without moving or re-clamping it. This greatly increases the flexibility of machining, especially for the manufacture of complex parts that require machining from multiple angles.

[0034] The worktable 6 has the ability to adjust the position of the X-axis and Y-axis, and can also perform rotational operations, effectively improving the flexibility of machining in combination with existing moving tool holders.

[0035] It should be noted that the tool holder 2 and the clamp in this embodiment are general standard parts or components known to those skilled in the art, and their structure and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods.

[0036] The utility model has been described above by way of example, but the utility model is not limited to the above specific embodiments, and any modification or variation made based on the utility model falls within the scope of protection required by the utility model.

Claims

1. A fine adjustment device for a numerically controlled machine tool for improving machining accuracy, characterized by: The machine comprises a machine body (1) and a tool rest (2), the tool rest (2) is arranged on the machine body (1), a horizontal adjusting device (3) is arranged on the machine body (1), the horizontal adjusting device (3) is used for adjusting the movement of a moving table (4), a rotary bearing (5) is arranged on the moving table (4), a driving device (51) is arranged in the rotary bearing (5), the driving device (51) drives a worktable (6) arranged on the rotary bearing (5) to rotate.

2. The fine adjustment device of a numerical control machine tool for improving machining precision according to claim 1, characterized in that The horizontal adjusting device (3) comprises a y-axis adjusting device and an x-axis adjusting device, the y-axis adjusting device comprises a y-axis motor (31) arranged on the machine body (1) and a y-axis connecting piece (33), the output end of the y-axis motor (31) is connected with a y-axis screw (32), the y-axis connecting piece (33) is sleeved on the y-axis screw (32) and is in threaded connection with the y-axis screw (32), a support rod (34) is fixedly connected on the y-axis connecting piece (33), and the support rod (34) is fixedly connected on a moving rod (35).

3. The fine adjustment device of claim 2, wherein The x-axis adjusting device comprises an x-axis motor (36) and an x-axis connecting piece (38), the output end of the x-axis motor (36) is connected with an x-axis screw (37), the x-axis connecting piece (38) is sleeved on the x-axis screw (37) and is in threaded connection with the x-axis screw (37), a guide rail is arranged on the moving rod (35), the x-axis connecting piece (38) is in sliding connection with the guide rail, and the x-axis connecting piece (38) is connected with the adjusting moving table (4).

4. The fine adjustment device of claim 3, wherein Two x-axis motors (36) are arranged on the x-axis adjusting device.

5. The fine adjustment device of claim 4, wherein the fine adjustment device is a fine adjustment device of a numerical control machine tool for improving machining precision, characterized in that A protective cover (371) is arranged on the x-axis screw (37).

6. The fine adjustment device of a numerical control machine tool for improving machining precision according to claim 1, characterized in that The rotary bearing (5) is arranged on a housing (52), the driving device (51) is arranged on the housing (52), the output end of the driving device (51) is connected with a driving gear (53), the driving gear (53) is in meshing connection with a first gear (54), and the driving gear (53) and a pinion (55) are both arranged on a rotating rod (56).

7. The fine adjustment device of claim 6, wherein The rotary bearing (5) comprises an outer ring, an inner ring and rolling bodies arranged between the outer ring and the inner ring, a gear ring (57) is arranged in the inner ring, the gear ring (57) is in meshing connection with the pinion (55), and the inner ring is connected with the worktable (6).

8. The fine adjustment device of claim 1, wherein A clamp for clamping a workpiece is arranged on the worktable (6).

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