A Y-axis power turret milling and turning composite CNC lathe with tail tip

By introducing the tailstock assembly and slide assembly into a milling-turning CNC lathe, the vibration problem during the machining of long workpieces was solved, and the machining accuracy and yield were improved.

CN224575113UActive Publication Date: 2026-07-31DONGGUAN PUXIANGRUI CNC ELECTROMECHANICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN PUXIANGRUI CNC ELECTROMECHANICAL TECH CO LTD
Filing Date
2025-07-23
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing milling and turning CNC lathes are prone to vibration when machining long workpieces, which leads to machining errors and reduces machining efficiency.

Method used

A Y-axis power turret milling and turning composite CNC lathe with a tail top was designed. By setting a tail top assembly in the machining cavity, the long shaft workpiece in the spindle assembly is held in place by the electric telescopic tail top. Combined with the movement of the X-axis slide assembly and the Z-axis slide assembly, the workpiece is stably clamped and machined.

Benefits of technology

By using a bending-resistant and vibration-damping tail assembly, the coaxiality of the workpiece is ensured, improving the yield and accuracy of machining and reducing machining errors caused by vibration.

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Abstract

This utility model relates to the field of CNC lathes, and in particular to a Y-axis power turret milling and turning composite CNC lathe with a tailstock, comprising a bed body; a machining cavity is provided in the middle of the front side of the bed body; a spindle assembly for clamping workpieces is provided on one side of the machining cavity; a turret assembly for Y-axis milling and turning is provided on the upper part of the other side of the machining cavity; an X-axis slide assembly for driving the X-axis movement of the turret assembly is provided on the upper part of the machining cavity; a Z-axis slide assembly for driving the Z-axis movement of the X-axis slide assembly is provided on the rear side of the machining cavity; a tailstock assembly coaxial with the spindle assembly is provided on the other side of the machining cavity to hold a long-axis workpiece; the beneficial effect of this utility model is that by providing a tailstock assembly coaxial with the spindle assembly in the machining cavity, the working end of the electrically telescopic tailstock holds the long-axis workpiece in the spindle assembly, making it resistant to bending and vibration, ensuring the coaxiality of the workpiece, and improving the yield of product processing.
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Description

Technical Field

[0001] This utility model relates to the field of CNC lathes, and in particular to a Y-axis power turret milling and turning composite CNC lathe with a tail top. Background Technology

[0002] A turning-milling composite CNC lathe is a composite machine tool that combines the machining methods of a lathe and a milling machine. This machine tool can realize multiple processes such as turning, milling, drilling, and tapping of parts under the same clamping, the same precision, and the same program. It can be used as a production tool for various parts, such as gears, drive shafts, racks, and threads.

[0003] Existing milling and turning CNC lathes are prone to vibration when machining long workpieces, which causes machining errors and reduces machining efficiency. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model provides a technical solution that can solve the above problems.

[0005] A Y-axis power turret milling and turning composite CNC lathe with a tail top, including a bed body;

[0006] A machining cavity is provided in the middle of the front side of the machine bed;

[0007] A spindle assembly for clamping workpieces is provided on one side of the machining cavity;

[0008] A turret assembly for Y-axis milling and turning is provided on the upper part of the other side of the machining cavity;

[0009] The upper part of the machining cavity is provided with an X-axis slide assembly for driving the X-axis movement of the turret assembly;

[0010] A Z-axis slide assembly for driving the X-axis slide assembly to move along the Z-axis is provided on the rear side of the machining cavity;

[0011] On the other side of the machining cavity, a coaxial tailstock assembly is provided relative to the spindle assembly to hold the long-shaft workpiece.

[0012] The tailstock assembly includes a tailstock slide rail installed at the bottom of the machining cavity, a tailstock slide block slidably mounted on the upper end of the tailstock slide rail, and an electrically telescopic tailstock mounted on the upper end of the tailstock slide block. The working end of the electrically telescopic tailstock is positioned relative to the spindle assembly.

[0013] As a further embodiment of this utility model: the spindle assembly includes a spindle mounting bracket installed on the bottom of the bed body away from the tailstock assembly. A spindle unit is provided at the upper end of the spindle mounting bracket. A hollow hydraulic chuck is provided on the side of the spindle unit near the machining cavity. The hollow hydraulic chuck extends inward into the machining cavity and is coaxially arranged with the electric telescopic tailstock assembly. A hollow rotary cylinder for driving the hollow hydraulic chuck is provided on the other side of the spindle unit. A spindle motor is provided on the outer side of the lower part of the spindle mounting bracket. The rotating end of the spindle motor drives the spindle unit to rotate via a belt.

[0014] As a further embodiment of this utility model, a hydraulic brake is also provided at the upper end of the spindle unit.

[0015] As a further embodiment of this utility model: the Z-axis slide assembly includes a Z-axis motor mounted on the bed body and located on the rear side of the machining cavity, the working end of the Z-axis motor is provided with a Z-axis lead screw guide rail, the Z-axis lead screw guide rail is provided with a Z-axis slide plate, and the X-axis slide assembly is mounted on the Z-axis slide plate.

[0016] As a further embodiment of this utility model: the X-axis slide assembly includes an X-axis motor mounted on a Z-axis slide plate, the working end of the X-axis motor is positioned relative to the machining cavity and is mounted on an X-axis lead screw guide rail, an X-axis slide plate is mounted on the X-axis lead screw guide rail, and a turret assembly is mounted on the X-axis slide plate.

[0017] As a further embodiment of this utility model: the turret assembly includes a turret cover mounted on the X-axis slide plate, and a Y-axis power turret for mounting tools is provided on the side of the turret cover near the spindle assembly.

[0018] As a further embodiment of this utility model: a chip discharge port is provided at the bottom of the processing cavity, and a chip conveyor connected to the chip discharge port is provided on one side of the bed body.

[0019] As a further embodiment of this utility model: a return groove is provided at the bottom of the chip discharge port, and a liquid storage tank connected to the return groove is provided on one side of the bed body.

[0020] Compared with the prior art, the beneficial effects of this utility model are: by setting a tail jack assembly coaxial with the spindle assembly in the processing cavity, the working end of the electric telescopic tail jack pushes against the long shaft workpiece in the spindle assembly, making it resistant to bending and vibration, thus ensuring the coaxiality of the workpiece and improving the yield of product processing.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in this embodiment or the prior art, the drawings used in the description of the embodiment or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0025] Figure 3 This is a structural diagram of the bed frame.

[0026] Figure 4 This is a structural schematic diagram of the spindle assembly.

[0027] Figure 5 This is a structural schematic diagram of the X-axis slide assembly.

[0028] Figure 6 This is a structural diagram of the tail-top assembly.

[0029] The diagram shows: 1. Bed body; 11. Machining cavity; 12. Chip outlet; 13. Chip conveyor; 14. Return groove; 15. Liquid reservoir; 2. Spindle assembly; 21. Spindle mounting bracket; 22. Spindle unit; 23. Hollow hydraulic chuck; 24. Hollow rotary cylinder; 25. Spindle motor; 3. Turret assembly; 31. Turret cover; 32. Y-axis power turret; 4. X-axis slide assembly; 41. X-axis motor; 42. X-axis lead screw guide; 43. X-axis slide plate; 5. Z-axis slide assembly; 51. Z-axis motor; 52. Z-axis lead screw guide; 53. Z-axis slide plate; 6. Tail top assembly; 61. Tail top slide rail; 62. Tail top slide block; 63. Electric telescopic tail top. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0034] Please see Figure 1-6 A Y-axis power turret turning and milling composite CNC lathe with a tail top, comprising a bed body 1;

[0035] A machining cavity 11 is provided in the middle of the front side of the bed body 1;

[0036] A spindle assembly 2 for clamping workpieces is provided on one side of the machining cavity 11;

[0037] A turret assembly 3 for Y-axis milling and turning is provided on the upper part of the other side of the machining cavity 11;

[0038] The upper part of the machining cavity 11 is provided with an X-axis slide assembly 4 for driving the X-axis movement of the turret assembly 3;

[0039] A Z-axis slide assembly 5 for driving the X-axis slide assembly 4 to move along the Z-axis is provided on the rear side of the machining cavity 11.

[0040] On the other side of the machining cavity 11, a coaxial tailstock assembly 6 is provided relative to the spindle assembly 2 to hold the long shaft workpiece.

[0041] The tail top assembly 6 includes a tail top slide rail 61 installed at the bottom of the machining cavity 11. A tail top slide block 62 is slidably disposed at the upper end of the tail top slide rail 61. An electric telescopic tail top 63 is disposed at the upper end of the tail top slide block 62. The working end of the electric telescopic tail top 63 is disposed relative to the spindle assembly 2.

[0042] When machining a long-shaft workpiece, the workpiece is placed inside the spindle assembly 2 for fixed clamping. Through the cooperation between the tail slide 62 and the tail slide rail 61, the working end of the electric telescopic tail 63 presses against the long-shaft workpiece. The X-axis slide assembly 4 and the Z-axis slide assembly 5 drive the turret assembly 3 to approach the workpiece, and the workpiece is machined by the tool installed on the turret assembly 3.

[0043] A further embodiment: The spindle assembly 2 includes a spindle mounting bracket 21 installed inside the bed body 1 on the side away from the tailstock assembly 6. A spindle unit 22 is provided at the upper end of the spindle mounting bracket 21. A hollow hydraulic chuck 23 is provided on the side of the spindle unit 22 near the machining cavity 11. The hollow hydraulic chuck 23 extends inward into the machining cavity and is coaxially arranged with the electric telescopic tailstock 63. A hollow rotary cylinder 24 for driving the hollow hydraulic chuck 23 is provided on the other side of the spindle unit 22. A spindle motor 25 is provided on the outer side of the lower part of the spindle mounting bracket 21. The rotating end of the spindle motor 25 drives the spindle unit 22 to rotate via a belt.

[0044] The hollow rotary cylinder 24 provides power to the hollow hydraulic chuck 23, which clamps the workpiece in place. The spindle motor 25 drives the spindle unit 22 to rotate via a belt, thereby enabling the hollow hydraulic chuck 23 to rotate the workpiece and achieve all-around processing of the workpiece.

[0045] A further solution: a hydraulic brake 26 is also provided at the upper end of the spindle unit 22.

[0046] It can fix the rotation of the spindle unit 22 to ensure the accuracy of the rotation of the workpiece driven by the hollow hydraulic chuck 23.

[0047] A further solution: The Z-axis slide assembly 5 includes a Z-axis motor 51 mounted on the bed body 1 and located on the rear side of the machining cavity 11. The working end of the Z-axis motor 51 is provided with a Z-axis lead screw guide rail 52. A Z-axis slide plate 53 is provided on the Z-axis lead screw guide rail 52. The X-axis slide assembly 4 is mounted on the Z-axis slide plate 53.

[0048] Z-axis motor 51 drives Z-axis slide plate 53 to move via Z-axis lead screw guide rail 52, thereby driving turret assembly 3 to move in the Z direction.

[0049] A further solution: The X-axis slide assembly 4 includes an X-axis motor 41 mounted on the Z-axis slide plate 53. The working end of the X-axis motor 41 is positioned relative to the machining cavity 11 and is equipped with an X-axis lead screw guide rail 42. An X-axis slide plate 43 is mounted on the X-axis lead screw guide rail 42, and the turret assembly 3 is mounted on the X-axis slide plate 43.

[0050] The X-axis motor 41 drives the X-axis slide plate 43 to move via the X-axis lead screw guide rail 42, thereby driving the turret assembly 3 to move in the X direction.

[0051] A further option: The turret assembly 3 includes a turret cover 31 mounted on the X-axis slide plate 43, and a Y-axis power turret 32 ​​for mounting tools is provided on the side of the turret cover 31 near the spindle assembly 2.

[0052] The machining tool is mounted on the Y-axis power turret 32 ​​and driven to rotate, thereby realizing the machining of the workpiece; the turret cover 31 plays a role in preventing slag and water from the Y-axis power turret 32.

[0053] A further solution: A chip discharge port 12 is provided at the bottom of the machining cavity 11, and a chip conveyor 13 connected to the chip discharge port 12 is provided on one side of the bed body 1.

[0054] It can separate cutting fluid from waste chips, and the chip conveyor 13 collects and discharges the waste chips.

[0055] A further solution: A return channel 14 is provided at the bottom of the chip discharge port 12, and a liquid storage tank 15 connected to the return channel 14 is provided on one side of the bed body 1.

[0056] The return tank 14 returns the filtered cutting fluid to the storage tank 15, realizing recycling and reducing processing costs.

[0057] The circuits, electronic components, and control modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0058] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0059] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A Y-axis power turret milling and turning composite CNC lathe with a tail tip, characterized in that: Including the bed frame (1); A machining cavity (11) is provided in the middle of the front side of the bed body (1); A spindle assembly (2) for clamping workpieces is provided on one side of the machining cavity (11); A turret assembly (3) for Y-axis milling and turning is provided on the upper part of the other side of the machining cavity (11); The upper part of the machining cavity (11) is provided with an X-axis slide assembly (4) for driving the X-axis movement of the turret assembly (3); A Z-axis slide assembly (5) for driving the X-axis slide assembly (4) to move along the Z-axis is provided on the rear side of the machining cavity (11); On the other side of the machining cavity (11), a coaxial tail jack assembly (6) for holding the long shaft workpiece is provided relative to the spindle assembly (2); The tail top assembly (6) includes a tail top slide rail (61) installed at the bottom of the machining cavity (11), a tail top slide block (62) is slidably provided at the upper end of the tail top slide rail (61), an electric telescopic tail top (63) is provided at the upper end of the tail top slide block (62), and the working end of the electric telescopic tail top (63) is provided relative to the spindle assembly (2).

2. The Y-axis power turret turning and milling composite CNC lathe with tail tip as described in claim 1, characterized in that: The spindle assembly (2) includes a spindle mounting bracket (21) installed on the bottom side of the bed body (1) away from the tail assembly (6). A spindle unit (22) is provided at the upper end of the spindle mounting bracket (21). A hollow hydraulic chuck (23) is provided on the side of the spindle unit (22) near the machining cavity (11). The hollow hydraulic chuck (23) extends into the machining cavity (11) and is coaxially arranged with the electric telescopic tail assembly (63). A hollow rotary cylinder (24) for driving the hollow hydraulic chuck (23) is provided on the other side of the spindle unit (22). A spindle motor (25) is provided on the outer side of the lower part of the spindle mounting bracket (21). The rotating end of the spindle motor (25) drives the spindle unit (22) to rotate through a belt.

3. The Y-axis power turret turning and milling composite CNC lathe with tail tip according to claim 2, characterized in that: The upper end of the spindle unit (22) is also equipped with a hydraulic brake (26).

4. The Y-axis power turret turning and milling composite CNC lathe with tail tip as described in claim 1, characterized in that: The Z-axis slide assembly (5) includes a Z-axis motor (51) mounted on the bed body (1) and located behind the machining cavity (11). The working end of the Z-axis motor (51) is provided with a Z-axis lead screw guide (52). A Z-axis slide plate (53) is provided on the Z-axis lead screw guide (52). The X-axis slide assembly (4) is mounted on the Z-axis slide plate (53).

5. The Y-axis power turret turning and milling composite CNC lathe with tail tip as described in claim 4, characterized in that: The X-axis slide assembly (4) includes an X-axis motor (41) mounted on a Z-axis slide (53). The working end of the X-axis motor (41) is positioned relative to the machining cavity (11) and is mounted on an X-axis lead screw guide (42). An X-axis slide (43) is mounted on the X-axis lead screw guide (42), and a turret assembly (3) is mounted on the X-axis slide (43).

6. The Y-axis power turret turning and milling composite CNC lathe with tail tip as described in claim 5, characterized in that: The turret assembly (3) includes a turret cover (31) mounted on an X-axis slide plate (43), and a Y-axis power turret (32) for mounting tools is provided on the side of the turret cover (31) near the spindle assembly (2).

7. The Y-axis power turret turning and milling composite CNC lathe with tail tip according to claim 1, characterized in that: A chip discharge port (12) is provided at the bottom of the machining cavity (11), and a chip conveyor (13) connected to the chip discharge port (12) is provided on one side of the bed body (1).

8. The Y-axis power turret turning and milling composite CNC lathe with tail tip according to claim 7, characterized in that: A return channel (14) is provided at the bottom of the chip discharge port (12), and a liquid storage tank (15) connected to the return channel (14) is provided on one side of the bed body (1).