Numerical control lathe

Abstract

The utility model relates to a numerical control lathe in the technical field of numerical control machining lathes, which comprises a lathe casting body, a rotating spindle and a machining tool apron, a spindle casting body for mounting the rotating spindle is arranged at the top of one end of the lathe casting body, the rotating spindle is rotatably arranged in the spindle casting body, and an x-axis casting body is arranged in the middle of the lathe casting body. An x-axis lead screw driving mechanism is arranged in the x-axis casting body, the machining tool apron can horizontally move along one side of the rotating main shaft through the x-axis lead screw driving mechanism, a receding cavity is formed in the middle of the main shaft casting body, an opening of the receding cavity is formed towards one side of the x-axis casting body, one end of the x-axis lead screw driving mechanism is arranged in the receding cavity, and the other end of the x-axis lead screw driving mechanism is arranged on the machining tool apron. The spindle casting body and the x-axis lead screw driving mechanism are reasonably distributed and reasonably optimized in the limited space of the numerical control lathe, so that the overall length of the numerical control lathe is reduced, and the occupied area of the numerical control lathe is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled lathes, and specifically relates to a numerically controlled lathe. Background Art

[0002] The inclined bed turning and milling compound machine tool is an automated machine tool with an inclined bed. The plane where the two guide rails of the inclined bed turning and milling compound machine tool intersect with the ground plane to form an inclined plane, and the angles are 30°, 45°, 60°, and 75°. The bed of the inclined bed turning and milling compound machine tool is in a right triangle. Obviously, in the case of the same guide rail width, the X-axis carriage of the inclined bed is longer than that of the flat bed. The practical significance applied to the lathe is that more tool positions can be arranged, so that a multi-station turret or a power east turret can be equipped, and it has the characteristics of high precision and high efficiency.

[0003] According to the Chinese utility model patent with the existing publication number CN214867301U, it records an inclined bed turning and milling compound machine tool, including an inclined bed, a spindle assembly arranged on the left side of the upper surface of the inclined bed, and a tailstock guide rail arranged on the front side of the right part of the inclined bed. A tailstock assembly matching the tailstock guide rail is arranged above the inclined bed. A saddle guide rail is arranged on the rear side of the right part of the inclined bed. A Y-axis saddle assembly matching the saddle guide rail is arranged above the inclined bed. An X-axis saddle assembly matching the Y-axis saddle assembly is arranged above the Y-axis saddle assembly. A turret assembly matching the X-axis saddle assembly is arranged on the X-axis saddle assembly. A waste material groove is arranged on the upper surface of the inclined bed. Machine bases are arranged on the left and right sides of the lower surface of the inclined bed, and a collection port is formed between the machine bases on the left and right sides. It can quickly complete the discharge of debris while reducing the floor area, and can quickly process the water and remaining debris in the waste material groove after the waste material groove is flushed by water, effectively improving the cleaning efficiency.

[0004] However, the compound machine tool with an inclined bed still has the structural variability of reducing the floor area. Therefore, in view of these current situations, there is an urgent need to develop a numerically controlled lathe to meet the actual use requirements. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a numerically controlled lathe, which is used to reduce the overall volume of the inclined bed machine tool, optimize its internal structure, and make the numerically controlled lathe develop in the direction of less floor area and miniaturization.

[0006] In order to solve the above technical problems, the present utility model adopts the following technical solutions:

[0007] A CNC lathe comprises a lathe casting, a rotating spindle and a machining tool holder, wherein a spindle casting for mounting the rotating spindle is provided at the top of one end of the lathe casting, the rotating spindle is rotatably arranged inside the spindle casting, an x-axis casting is provided in the middle of the lathe casting, an x-axis screw drive mechanism is provided inside the x-axis casting, the machining tool holder can be moved horizontally along one side of the rotating spindle through the x-axis screw drive mechanism, an air avoidance cavity is provided in the middle of the spindle casting, the opening of the air avoidance cavity is provided toward one side of the x-axis casting, and one end of the x-axis screw drive mechanism is provided inside the air avoidance cavity.

[0008] In the above description, as a further solution, one end of the x-axis screw drive mechanism is a screw transmission part, and the other end of the x-axis screw drive mechanism is a motor control part. The motor control part is arranged inside the air avoidance cavity, and the screw transmission part is extended to one side of the x-axis casting.

[0009] In the above description, as a further solution, the avoidance cavity penetrates both end surfaces of the main shaft casting.

[0010] In the above description, as a further solution, a y-axis casting is also provided above the x-axis casting, the axial direction of the y-axis casting is maintained perpendicular to the axial direction of the x-axis casting, the machining tool holder is arranged above the y-axis casting, and a horizontally arranged first guide rail is provided in the middle part of the x-axis casting. The y-axis casting can be horizontally movably connected to the middle part of the x-axis casting through the first guide rail, and the bottom end surface of the y-axis casting is transmission connected through the x-axis screw drive mechanism.

[0011] In the above description, as a further solution, a sliding plate is provided in the middle of the y-axis casting, the machining tool holder is fixedly connected to the top surface of the sliding plate, a second guide rail is provided between the sliding plate and the y-axis casting, and the sliding plate is movably connected to the top surface of the y-axis casting through the second guide rail.

[0012] In the above description, as a further solution, a y-axis screw drive mechanism is provided inside the y-axis casting, and the bottom end surface of the sliding plate is transmission-connected via the y-axis screw drive mechanism.

[0013] The beneficial effects produced by the utility model are as follows:

[0014] A CNC lathe of the present application has an air-avoiding cavity in the interior of a spindle casting which is in the same direction as the x-axis casting. By utilizing the feature that the axis of the x-axis casting is consistent with the rotating spindle, part of the structure of the x-axis screw drive mechanism, wherein the motor control unit is preferably arranged inside the air-avoiding cavity, is rationally allocated and optimized in the limited space of the CNC lathe, thereby reducing the overall length of the CNC lathe and effectively reducing the floor space of the CNC lathe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1Schematic three - dimensional structure diagram of a numerically controlled lathe described in the present utility model;

[0016] Figure 2 Schematic diagram of the partial internal structure of a numerically controlled lathe described in the present utility model;

[0017] Figure 3 Schematic diagram of the structure of a numerically controlled lathe from a side - view perspective described in the present utility model;

[0018] In the figure: 1 - Lathe casting, 11 - Driving seat, 12 - Waste discharge groove, 2 - Spindle casting, 21 - Avoidance cavity, 3 - X - axis casting, 31 - First guide rail, 4 - Y - axis casting, 41 - Second guide rail, 5 - Machining tool holder, 6 - Rotating spindle, 7 - Slide plate, 8 - Y - axis lead screw driving mechanism, 9 - X - axis lead screw driving mechanism, 91 - Lead screw transmission part, 92 - Motor control part. Specific embodiments

[0019] For the convenience of those skilled in the art to understand, the present utility model will be further described below in conjunction with embodiments and the accompanying drawings. The content mentioned in the embodiments does not limit the present utility model. The present utility model will be described in detail below with reference to the accompanying drawings.

[0020] Please refer to Figures 1-3 , a numerically controlled lathe in its specific implementation, includes a lathe casting 1, a rotating spindle 6 and a machining tool holder 5. At the top of one end of the lathe casting 1, there is a spindle casting 2 for installing the rotating spindle 6. The rotating spindle 6 is rotatably arranged inside the spindle casting 2. In the middle of the lathe casting 1, there is an X - axis casting 3. Inside the X - axis casting 3, there is an X - axis lead screw driving mechanism 9. The machining tool holder 5 can move horizontally along one side of the rotating spindle 6 through the X - axis lead screw driving mechanism 9. In the middle of the spindle casting 2, there is an avoidance cavity 21. The avoidance cavity 21 runs through both end faces of the spindle casting 2. The opening of the avoidance cavity 21 faces the side of the X - axis casting 3. One end of the X - axis lead screw driving mechanism 9 is arranged inside the avoidance cavity 21.

[0021] Among them, the structure of the X - axis lead screw driving mechanism 9 is as Figure 2 shown. One end of the X - axis lead screw driving mechanism 9 is a lead screw transmission part 91, and the other end of the X - axis lead screw driving mechanism 9 is a motor control part 92. Preferably, the motor control part 92 is arranged inside the avoidance cavity 21, and the lead screw transmission part 91 extends towards the side of the X - axis casting 3.

[0022] A y-axis casting 4 is also provided above the x-axis casting 3, and the axial direction of the y-axis casting 4 is maintained perpendicular to the axial direction of the x-axis casting 3. A processing tool holder 5 is provided above the y-axis casting 4, and a horizontally arranged first guide rail 31 is provided in the middle part of the x-axis casting 3. The y-axis casting 4 can be horizontally movably connected to the middle part of the x-axis casting 3 through the first guide rail 31. The bottom end surface of the y-axis casting 4 is transmission-connected through the x-axis screw drive mechanism 9. A sliding plate 7 is provided in the middle part of the y-axis casting 4, and the processing tool holder 5 is fixedly connected to the top end surface of the sliding plate 7. A second guide rail 41 is provided between the sliding plate 7 and the y-axis casting 4, and the sliding plate 7 is movably connected to the top end surface of the y-axis casting 4 through the second guide rail 41. A y-axis screw drive mechanism 8 is provided inside the y-axis casting 4, and the bottom end surface of the sliding plate 7 is transmission-connected through the y-axis screw drive mechanism 8.

[0023] A beneficial effect and principle of a CNC lathe: a void cavity 21 is opened inside the spindle casting 2 in the same direction as the x-axis casting 3, and the characteristic that the axis of the x-axis casting 3 is consistent with the rotating spindle 6 is utilized to arrange part of the structure of the x-axis screw drive mechanism 9, wherein the motor control unit 92 is preferably arranged inside the void cavity 21, and the spindle casting 2 and the x-axis screw drive mechanism 9 are reasonably allocated and optimized in the limited space of the CNC lathe, so that the overall length of the CNC lathe is reduced, and the floor space of the CNC lathe is effectively reduced.

[0024] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A numerically controlled lathe, comprising a lathe casting, a rotating main shaft and a machining tool holder. At the top of one end of the lathe casting, there is a main shaft casting for installing the rotating main shaft. The rotating main shaft is rotatably arranged inside the main shaft casting. In the middle of the lathe casting, there is an X-axis casting, and an X-axis lead screw driving mechanism is arranged inside the X-axis casting. The machining tool holder can move horizontally along one side of the rotating main shaft through the X-axis lead screw driving mechanism, and it is characterized in that: A cavity is formed in the middle of the main shaft casting body, and the opening of the cavity is arranged towards one side of the x-axis casting body. One end of the x-axis lead screw driving mechanism is arranged inside the cavity.

2. A numerically controlled lathe according to claim 1, characterized in that: One end of the x-axis lead screw driving mechanism is a lead screw transmission part, and the other end is a motor control part. The motor control part is arranged inside the cavity, and the lead screw transmission part extends towards one side of the x-axis casting body.

3. A numerical control lathe according to claim 1, characterized in that: The cavity penetrates through both end faces of the main shaft casting body.

4. A numerically controlled lathe according to claim 2, characterized in that: A y-axis casting body is further arranged above the x-axis casting body. The axial direction of the y-axis casting body is perpendicular to that of the x-axis casting body. The machining tool holder is arranged above the y-axis casting body. A horizontally arranged first guide rail is provided in the middle of the x-axis casting body. The y-axis casting body is horizontally movably connected to the middle of the x-axis casting body through the first guide rail, and the bottom end face of the y-axis casting body is drivingly connected through the x-axis lead screw driving mechanism.

5. A numerical control lathe according to claim 4, characterized in that: A sliding plate is arranged in the middle of the y-axis casting body. The machining tool holder is fixedly connected to the top end face of the sliding plate. A second guide rail is arranged between the sliding plate and the y-axis casting body. The sliding plate is movably connected to the top end face of the y-axis casting body through the second guide rail.

6. A numerically controlled lathe according to claim 5, characterized in that: A y-axis lead screw driving mechanism is arranged inside the y-axis casting body. The bottom end face of the sliding plate is drivingly connected through the y-axis lead screw driving mechanism.

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