Double-end numerical control lathe for deep hole machining

By setting up a drain trough, adjustment structure and filter plate in the double-ended CNC lathe, and using a motor to drive the cam disk and half gear to filter debris and sewage, the problem of debris clogging the drainage pipe is solved, and the flexibility and machining accuracy of the machine tool are improved.

CN224209132UActive Publication Date: 2026-05-08ZHEJIANG TANGXI CNC MACHINE TOOLS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG TANGXI CNC MACHINE TOOLS
Filing Date
2025-05-29
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

During the machining process, the lack of a filter structure on a double-ended CNC lathe can cause debris to clog the drainage pipes, increasing machine tool maintenance costs and failure rates, and reducing flexibility.

Method used

The lathe base is equipped with a drain trough, adjustment structure, filter plate and guide rod. The cam disk is driven to rotate by the motor. In conjunction with the half gear and toothed plate, the filter plate swings around the guide rod to filter debris and sewage. The filter plate is cleaned by a scraper through the limiting structure and groove design.

Benefits of technology

This effectively prevents debris from clogging the drainage pipes, reduces machine tool maintenance costs and failure rates, and improves the flexibility and machining accuracy of the machine tool.

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Abstract

The utility model discloses a double-end numerical control lathe for deep hole machining, which belongs to the technical field of numerical control lathes and comprises a lathe base, a lathe body is fixedly connected above the lathe base, a machining component is fixedly connected in the lathe body, a lathe door is slidably connected outside the lathe body, a dirt discharge groove is fixedly connected in the lathe base, and the dirt discharge groove is fixedly connected with the machining component. A guide rod is rotationally connected into the dirt discharge groove, a filter plate is fixedly connected to the outer surface of the guide rod, and an adjusting structure is arranged on the front face of the lathe base. Through the arrangement of the sewage discharge groove, the adjusting structure, the filter plate and the guide rod, the filter plate can swing by taking the guide rod as the center through the cooperation of the half gear, the toothed plate and the spring, chips and sewage thereof can be filtered, and the chips can be concentrated and remained above the filter plate, so that the filtering effect of the filter plate is improved, and the service life of the filter plate is prolonged. The phenomenon that chippings left in the sewage block the drainage pipeline is avoided, the maintenance cost and the failure rate of the lathe are reduced, and the flexibility of the double-end numerical control lathe is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of CNC lathe technology, specifically a double-end CNC lathe for deep hole machining. Background Technology

[0002] Deep hole machining technology is widely used in the manufacture of precision parts such as oil drill pipes, hydraulic cylinders, and gun barrels. The machining quality directly affects the product's service life and performance. The main channel for deep hole machining is the double-end CNC lathe. A double-end CNC lathe is a CNC machine tool that uses a dual-spindle synchronous drive. It is mainly used for the efficient and precise machining of long shafts, tubes, and deep-hole parts. Its core feature is that both ends of the workpiece are simultaneously controlled for cutting, which reduces the number of clamping operations and improves machining accuracy and production efficiency. During machining, the debris and wastewater generated by the double-end CNC lathe are discharged through a drainage channel below. Through dual-end synchronous machining, repeated positioning errors are avoided, significantly improving coaxiality and dimensional accuracy. Simultaneous cutting by the two spindles shortens the machining cycle, making it particularly suitable for the mass production of deep holes in long shafts and tubes. However, most parts of a double-end CNC lathe lack a filtration structure. Unfiltered debris may clog the drainage pipes or even flow back into the machine tool, damaging machine components, increasing maintenance costs and failure rates, and reducing the flexibility of the double-end CNC lathe. Utility Model Content

[0003] The purpose of this invention is to provide a double-ended CNC lathe for deep hole machining to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a deep hole machining double-end CNC lathe, including a lathe base, a bed fixedly connected to the upper part of the lathe base, a machining component fixedly connected inside the bed, a bed door slidably connected to the outside of the bed, a drain trough fixedly connected inside the lathe base, a guide rod rotatably connected inside the drain trough, a filter plate fixedly connected to the outer surface of the guide rod, an adjustment structure provided on the front of the lathe base, the adjustment structure being connected to the filter plate, a limiting structure provided inside the filter plate, the adjustment structure including a mounting plate, a positioning rod, a cam plate and a motor, a half gear rotatably connected to the outer surface of the positioning rod, a toothed plate slidably connected inside the mounting plate, and a spring provided below the toothed plate.

[0005] As a further preferred embodiment of this technical solution, the lathe base is provided with a drain pipe on the front side, the mounting plate is fixedly connected to the front side of the lathe base, the cam disk is rotatably connected inside the mounting plate, and the motor is fixedly connected to the outside of the mounting plate.

[0006] As a further preferred embodiment of this technical solution, the output shaft of the motor is connected to the cam disk, the upper part of the toothed plate is connected to the filter plate, and the toothed plate is connected to the mounting plate by a spring.

[0007] As a further preferred embodiment of this technical solution, the half gear meshes with the gear plate, the cam disk overlaps with the half gear, and the positioning rod is fixedly connected inside the mounting plate.

[0008] As a further preferred embodiment of this technical solution, the filter plate has a groove, the limiting structure includes an auxiliary frame and bolts, a scraper is fixedly connected inside the auxiliary frame, and the bolts are fixedly connected to the outside of the filter plate.

[0009] As a further preferred embodiment of this technical solution, the bolt is snapped into the auxiliary frame, the bolt is externally threaded with a nut, a positioning block is fixedly connected to the auxiliary frame, and the positioning block is snapped into the filter plate.

[0010] This utility model provides a double-end CNC lathe for deep hole machining, which has the following advantages:

[0011] (1) This utility model sets up a sewage trough, an adjustment structure, a filter plate and a guide rod. The motor drives the cam plate to rotate, and the cam plate drives the half gear to swing. Since the half gear meshes with the tooth plate, the tooth plate moves in the mounting plate. The spring deforms accordingly, and the filter plate swings around the guide rod. It can filter the sewage in the debris. The double-end CNC lathe, through the cooperation between the half gear, the tooth plate and the spring, enables the filter plate to swing around the guide rod. It can filter the debris and its sewage. The debris will be concentrated on the top of the filter plate, avoiding the phenomenon of debris in the sewage clogging the drainage pipe, reducing the maintenance cost and failure rate of the machine tool, and thus ensuring the flexibility of the double-end CNC lathe.

[0012] (2) By setting a limiting structure and groove, this utility model can pull the scraper through the auxiliary frame when it is necessary to process the debris after filtration in the filter plate. When the scraper moves in the filter plate, it will discharge the debris through the groove, thereby processing the debris after filtration in the filter plate and avoiding excessive accumulation of debris that would affect the filtration effect of the filter plate. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a three-dimensional structural diagram of the sewage trough of this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the adjustment structure of this utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the limiting structure of this utility model.

[0017] In the diagram: 1. Lathe base; 2. Bed; 3. Machining components; 4. Bed door; 5. Drainage trough; 6. Drainage pipe; 7. Adjustment structure; 701. Mounting plate; 702. Positioning rod; 703. Cam plate; 704. Half gear; 705. Gear plate; 706. Spring; 707. Motor; 8. Limiting structure; 801. Auxiliary frame; 802. Scraper; 803. Bolt; 804. Nut; 805. Positioning block; 9. Filter plate; 10. Guide rod; 11. Groove. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] This utility model provides a technical solution: such as Figure 1 and Figure 4 As shown, in this embodiment, a deep hole machining double-end CNC lathe includes a lathe base 1, a bed 2 fixedly connected to the top of the lathe base 1, a machining component 3 fixedly connected inside the bed 2, a bed door 4 slidably connected to the outside of the bed 2, a drain trough 5 fixedly connected inside the lathe base 1, a guide rod 10 rotatably connected inside the drain trough 5, a filter plate 9 fixedly connected to the outer surface of the guide rod 10, an adjustment structure 7 provided on the front of the lathe base 1, the adjustment structure 7 being connected to the filter plate 9, a limiting structure 8 provided inside the filter plate 9, the adjustment structure 7 including a mounting plate 701, a positioning rod 702, a cam plate 703 and a motor 707, a half gear 704 rotatably connected to the outer surface of the positioning rod 702, a toothed plate 705 slidably connected inside the mounting plate 701, and a spring 706 provided below the toothed plate 705.

[0020] like Figure 1 and Figure 3 As shown, a drain pipe 6 is provided on the front side of the lathe base 1, a mounting plate 701 is fixedly connected to the front side of the lathe base 1, a cam plate 703 is rotatably connected inside the mounting plate 701, a motor 707 is fixedly connected outside the mounting plate 701, the output shaft of the motor 707 is connected to the cam plate 703, the upper part of the gear plate 705 is connected to the filter plate 9, the gear plate 705 is connected inside the mounting plate 701 by a spring 706, the half gear 704 meshes with the gear plate 705, the cam plate 703 overlaps with the half gear 704, and the positioning rod 702 is fixedly connected inside the mounting plate 701.

[0021] By setting a spring 706, the motor 707 drives the cam disk 703 to rotate, which in turn drives the half gear 704 to swing. Since the half gear 704 meshes with the toothed plate 705, the toothed plate 705 moves within the mounting plate 701. The spring 706 deforms accordingly, providing support for the movement of the toothed plate 705. When the toothed plate 705 loses resistance, it will reset through the spring 706, preventing the toothed plate 705 from disengaging from the mounting plate 701 during movement.

[0022] like Figure 4 As shown, a groove 11 is provided in the filter plate 9. The limiting structure 8 includes an auxiliary frame 801 and a bolt 803. A scraper 802 is fixedly connected inside the auxiliary frame 801. The bolt 803 is fixedly connected to the outside of the filter plate 9 and is snapped into the auxiliary frame 801. A nut 804 is connected to the external thread of the bolt 803. A positioning block 805 is fixedly connected to the outside of the auxiliary frame 801 and is snapped into the filter plate 9.

[0023] By setting bolt 803 and nut 804, when scraper 802 is restored, positioning block 805 will slide in groove 11, and bolt 803 will be inserted into auxiliary frame 801. After bolt 803 is connected to nut 804, auxiliary frame 801 is locked, thereby locking the position of auxiliary frame 801 and scraper 802 and preventing the auxiliary frame 801 and scraper 802 from loosening due to external force.

[0024] This utility model provides a double-end CNC lathe for deep hole machining, and its working principle is as follows:

[0025] When the double-ended CNC lathe is in use, the material can be processed through the processing component 3. The debris and wastewater generated during processing will be discharged through the drain trough 5. The debris and wastewater will fall onto the filter plate 9 during discharge. Then, the cam disk 703 will be rotated by the motor 707. The cam disk 703 will drive the half gear 704 to swing. Since the half gear 704 meshes with the toothed plate 705, the toothed plate 705 will move within the mounting plate 701. The spring 706 will deform accordingly, and the filter plate 9 will swing around the guide rod 10, which can filter the wastewater in the debris.

[0026] When it is necessary to process the debris filtered inside the filter plate 9, the scraper 802 can be pulled by the auxiliary frame 801. When the scraper 802 moves inside the filter plate 9, it will discharge the debris through the groove 11. When the scraper 802 is restored, the positioning block 805 will slide in the groove 11, and the bolt 803 will be inserted into the auxiliary frame 801. After the bolt 803 is connected to the nut 804, it locks the auxiliary frame 801.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A deep hole machining double-end CNC lathe, comprising a lathe base (1), characterized in that: A bed (2) is fixedly connected above the lathe base (1). A machining component (3) is fixedly connected inside the bed (2). A bed door (4) is slidably connected outside the bed (2). A drain trough (5) is fixedly connected inside the lathe base (1). A guide rod (10) is rotatably connected inside the drain trough (5). A filter plate (9) is fixedly connected to the outer surface of the guide rod (10). An adjustment structure (7) is provided on the front of the lathe base (1). The adjustment structure (7) is connected to the filter plate (9). A limiting structure (8) is provided inside the filter plate (9). The adjustment structure (7) includes a mounting plate (701), a positioning rod (702), a cam plate (703), and a motor (707). A half gear (704) is rotatably connected to the outer surface of the positioning rod (702). A toothed plate (705) is slidably connected inside the mounting plate (701). A spring (706) is provided below the toothed plate (705).

2. The deep hole machining double-end CNC lathe according to claim 1, characterized in that: The lathe base (1) has a drain pipe (6) on its front side. The mounting plate (701) is fixedly connected to the front side of the lathe base (1). The cam disk (703) is rotatably connected inside the mounting plate (701). The motor (707) is fixedly connected outside the mounting plate (701).

3. The deep hole machining double-end CNC lathe according to claim 1, characterized in that: The output shaft of the motor (707) is connected to the cam disk (703), the upper part of the toothed plate (705) is connected to the filter plate (9), and the toothed plate (705) is connected to the mounting plate (701) by a spring (706).

4. A deep hole machining double-end CNC lathe according to claim 1, characterized in that: The half gear (704) meshes with the toothed plate (705), the cam disk (703) overlaps with the half gear (704), and the positioning rod (702) is fixedly connected inside the mounting plate (701).

5. A deep hole machining double-end CNC lathe according to claim 1, characterized in that: The filter plate (9) has a groove (11) inside. The limiting structure (8) includes an auxiliary frame (801) and a bolt (803). A scraper (802) is fixedly connected inside the auxiliary frame (801), and the bolt (803) is fixedly connected to the outside of the filter plate (9).

6. A deep hole machining double-end CNC lathe according to claim 5, characterized in that: The bolt (803) is snapped into the auxiliary frame (801), and the bolt (803) is externally threaded with a nut (804). The auxiliary frame (801) is externally fixedly connected with a positioning block (805), and the positioning block (805) is snapped into the filter plate (9).