Numerically controlled lathe for machining automobile parts

By introducing conveyor belts, rollers, and negative pressure equipment into CNC lathes, the simultaneous cleaning of chips and coolant is achieved, solving the problem of reduced turning efficiency caused by chip accumulation and improving machining efficiency.

CN223617332UActive Publication Date: 2025-12-02ZHANGJIAGANG AACHEN MASCH CO LTD
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Patent Information

Application Number
CN202522112733.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-30
Publication Date
2025-12-02
Estimated Expiration
2035-09-30

AI Technical Summary

Technical Problem

When machining automotive parts on a CNC lathe, the accumulation of chips and coolant reduces machining efficiency and requires regular cleaning, thus affecting production efficiency.

Method used

A CNC lathe was designed, which uses a conveyor belt and rollers in conjunction with a negative pressure device. The debris slides obliquely down the conveyor belt to the debris conveying trough, and is then conveyed to the debris conveying trough by the rotation of the rollers. The rotating spiral blades separate the debris and coolant, achieving simultaneous cleaning.

Benefits of technology

It improves the efficiency of chip and coolant removal, avoids chip accumulation from interfering with turning, and ensures the continuity and efficiency of the turning process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of numerical control lathes, and discloses a numerical control lathe for machining automobile parts, which comprises a numerical control lathe main body, a tailstock is arranged on one side in the numerical control lathe main body, and a driving device is arranged on the other side in the numerical control lathe main body. A scrap collecting groove is formed in the numerical control lathe body. According to the numerical control lathe for machining the automobile parts, the conveying belt is obliquely installed in the scrap collecting groove, after scraps generated by cutting slide to the inner side of the conveying belt, when the conveying belt rotates, the conveying belt drives the scraps to be discharged downwards, and meanwhile the scraps are conveyed into the scrap conveying groove through rotation of the rollers, so that the scrap cleaning efficiency is improved, and the practicability is high. And the situation that the chippings are accumulated together, and consequently cutting of products is interfered by the chippings in the follow-up turning process is avoided, solid-liquid separation is achieved in the process that the chippings are driven by the chipping conveying groove to be cleaned, and the chipping cleaning efficiency is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of CNC lathe technology, specifically a CNC lathe for machining automotive parts. Background Technology

[0002] In the automotive manufacturing process, automotive parts need to be machined to produce products of appropriate sizes. CNC lathes are one of the most widely used CNC machine tools. They are mainly used for cutting the inner and outer cylindrical surfaces, inner and outer conical surfaces with arbitrary cone angles, complex rotating inner and outer curved surfaces, and cylindrical and conical threads of shaft or disc parts. They can also perform grooving, drilling, reaming, boring, and other machining operations.

[0003] Typically, during the turning process on a CNC lathe, accessories and auxiliary devices need to be installed on the lathe to improve the machine tool's production efficiency. CNC lathe turning usually generates chips and coolant, which accumulate inside the lathe as the turning process progresses. When too much chip accumulates inside the lathe, it can interfere with the turning process, requiring regular chip cleaning. However, chip cleaning is time-consuming and affects turning efficiency. Therefore, we propose a CNC lathe for machining automotive parts. Utility Model Content

[0004] To address the shortcomings of existing CNC lathes used for machining automotive parts, this invention provides a CNC lathe for machining automotive parts. It features a conveyor belt installed inside a chip collection trough. The conveyor belt carries the turning chips downwards, and the rolling of rollers ensures that the chips are transported to the inside of the chip collection trough. Furthermore, the rotating helical blades effectively transport the chips away. This means that during lathe machining, chips are simultaneously cleaned, preventing chip accumulation that could affect the turning effect. This invention solves the problems mentioned in the background section.

[0005] This utility model provides the following technical solution: a CNC lathe for machining automotive parts, comprising a CNC lathe body, a tailstock installed on one side inside the CNC lathe body, a drive device installed on the other side inside the CNC lathe body, a chip collection groove opened inside the CNC lathe body, protective plates installed on both sides inside the CNC lathe body and above the chip collection groove, a conveyor belt installed obliquely inside the CNC lathe body, a negative pressure device installed inside the conveyor belt, an air suction pipe for conveying gas installed at one end of the negative pressure device, two sets of rollers installed inside the CNC lathe body and below the conveyor belt, and a chip conveying groove fixed in the middle of the lower end of the chip collection groove.

[0006] Preferably, the negative pressure device includes a negative pressure box, which is installed inside the conveyor belt. A limiting plate is fixedly connected inside the negative pressure box. The air intake pipe is connected to the limiting plate. A diverter plate is fixed at the upper end of the limiting plate. An air intake hole is opened on the outside of the negative pressure box. A water-draining plate is sleeved on the outside of the negative pressure box.

[0007] Preferably, gears are fixedly connected to the outside of the rollers, and two sets of gears are meshed with each other. The two sets of rollers are installed inside the debris conveying trough.

[0008] Preferably, the debris conveying trough is installed in the middle of the debris collecting trough, and a hole is provided between the connection between the debris conveying trough and the debris collecting trough. The conveyor belt is installed obliquely inside the debris collecting trough.

[0009] Preferably, the chip conveying trough is equipped with spiral blades inside, the lower end of the CNC lathe body is equipped with a sludge discharge chip outlet, the lower end of one end of the chip conveying trough is fixed with a sludge discharge chip outlet, the lower end of the chip conveying trough is provided with a hole, and the guide groove inside the sludge discharge chip outlet is installed at an angle.

[0010] Preferably, a guide rail is fixedly connected to the front end of the CNC lathe body, and a turning tool holder for turning the product is installed at the upper end of the guide rail. The turning tool holder is installed at the front end of the tailstock and the drive device.

[0011] Preferably, the tailstock is equipped with a hydraulic rod that moves the push clamping device left and right, and a drive clamping mechanism is installed at one end of the output shaft of the drive device. The workpiece to be turned is clamped between the clamping device and the drive clamping mechanism.

[0012] Compared with existing CNC lathes, this utility model has the following advantages:

[0013] 1. This CNC lathe for machining automotive parts uses a conveyor belt installed obliquely inside a chip collection trough. Chips generated during cutting slide onto the inner side of the conveyor belt. As the conveyor belt rotates, it carries the chips downwards, and simultaneously, rollers rotate to transport them into the chip conveying trough. This improves chip cleaning efficiency and prevents chips from accumulating and interfering with subsequent turning operations. Furthermore, the chip conveying trough facilitates solid-liquid separation during chip cleaning, further enhancing chip cleaning efficiency.

[0014] 2. The CNC lathe used for processing automotive parts has a negative pressure device installed outside the conveyor belt, and an air pump is connected to the external air intake pipe. The air pump draws gas from inside the negative pressure device, thus creating a negative pressure state outside the conveyor belt. This ensures that debris is effectively adsorbed on the outside of the conveyor belt, and at the same time, it improves the debris cleaning efficiency when the conveyor belt rotates. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the side cross-sectional structure of the main body of this utility model;

[0018] Figure 4 This is a schematic cross-sectional view of the main body of this utility model;

[0019] Figure 5 This is a partially enlarged structural diagram of the negative pressure device of this utility model.

[0020] In the diagram: 1. CNC lathe body; 2. Tailstock; 3. Hydraulic rod; 4. Clamping device; 5. Drive device; 6. Drive clamping mechanism; 7. Guide rail; 8. Turning tool holder; 9. Chip collection trough; 10. Protective plate; 11. Conveyor belt; 12. Negative pressure equipment; 121. Negative pressure box; 122. Limiting plate; 123. Diverter plate; 124. Suction hole; 125. Drain plate; 13. Suction pipe; 14. Roller; 15. Gear; 16. Chip conveying trough; 17. Spiral blade; 18. Sewage discharge trough; 19. Chip output port. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A CNC lathe for machining automotive parts includes a CNC lathe body 1. A tailstock 2 is installed on one side inside the CNC lathe body 1, and the tailstock 2 drives a clamping device to constrain one end of the product. A drive device 5 is installed on the other side inside the CNC lathe body 1, and the drive device 5 drives a clamping mechanism 6 to rotate. A chip collection groove 9 is provided inside the CNC lathe body 1. Protective plates 10 are installed on both sides inside the CNC lathe body 1 and above the chip collection groove 9, protecting the outside of a conveyor belt 11. The conveyor belt 11 is installed obliquely inside the CNC lathe body 1, and chips slide onto the outside of the conveyor belt 11. After the conveyor belt 11 rotates, it carries the debris out. A negative pressure device 12 is installed inside the conveyor belt 11. The negative pressure device 12 causes the debris to be adsorbed on the outside of the conveyor belt 11. A suction pipe 13 for conveying gas is installed at one end of the negative pressure device 12. Rollers 14 are installed inside the two sets of CNC lathe bodies 1 and at the lower end of the conveyor belt 11. When the rollers 14 rotate, they carry the debris down. A debris conveying trough 16 is fixed in the middle of the lower end of the debris collection trough 9. The debris conveying trough 16 carries the debris to perform solid-liquid separation, improving the debris separation efficiency.

[0023] Please see Figure 5 The negative pressure device 12 includes a negative pressure box 121, which is installed inside the conveyor belt 11. A limit plate 122 is fixedly connected inside the negative pressure box 121. The suction pipe 13 is interconnected with the limit plate 122. A diverter plate 123 is fixed at the upper end of the limit plate 122. A suction hole 124 is opened on the outside of the negative pressure box 121. A drainage plate 125 is sleeved on the outside of the negative pressure box 121. When the negative pressure device 12 is installed inside the conveyor belt 11 and the suction pipe 13 is activated, the suction pipe 13 drives the inside of the limit plate 122. A negative pressure state is formed, and a diverter plate 123 is installed at the upper end of the limiting plate 122. The diverter plate 123 is driven by 124 to absorb the gas, ensuring that the inside of the conveyor belt 11 is in a negative pressure state. During the machining of automotive parts, after the turning generates chips, the chip adsorption effect is improved, and the chips are prevented from adhering to the inside of the turning equipment, which would affect the turning effect. At the same time, a hydrophobic plate 125 is installed on the outside of the negative pressure box 121. The hydrophobic plate 125 is hydrophobic, and after the liquid slides to the outside of the negative pressure equipment 12, it effectively blocks the liquid.

[0024] Please see Figure 2Gears 15 are fixedly connected to the outside of roller 14. Two sets of gears 15 mesh with each other. Two sets of rollers 14 are installed inside the chip conveying trough 16. The rollers 14 are installed between two sets of conveyor belts 11. When the conveyor belts 11 rotate, they drive the chips generated by cutting downwards. The conveyor belts 11 drive the chips to be conveyed between the two sets of rollers 14. When the rollers 14 rotate, they drive the chips to be squeezed and consolidated and conveyed downwards, ensuring that the chips can be conveyed to the inside of the chip conveying trough 16 and transferred and output through the chip conveying trough 16. This improves the chip cleaning efficiency during the cutting process and avoids chips interfering with the cutting of the equipment.

[0025] Please see Figure 3 The debris conveying trough 16 is installed in the middle of the debris collecting trough 9. A hole is provided between the debris conveying trough 16 and the debris collecting trough 9. The conveyor belt 11 is installed obliquely inside the debris collecting trough 9. When debris and coolant are conveyed by the conveyor belt 11, the liquid is conveyed into the interior of the debris collecting trough 9 by the conveyor belt 11. At the same time, the coolant is conveyed into the interior of the debris conveying trough 16 through the hole between the debris collecting trough 9 and the debris conveying trough 16, thereby improving the output efficiency of the coolant.

[0026] Please see Figure 3 The chip conveying trough 16 is equipped with a spiral blade 17 inside. The lower end of the CNC lathe body 1 is equipped with a drain chip outlet 19. The lower end of one end of the chip conveying trough 16 is fixed with a drain chip outlet 19. The lower end of the chip conveying trough 16 has a hole. The guide groove inside the drain chip outlet 19 is installed at an angle. The spiral blade 17 is installed inside the chip conveying trough 16. After the chips are conveyed to the inside of the chip conveying trough 16, when the spiral blade 17 rotates, the spiral blade 17 drives the chips to be transported to one side and discharged through 19. At the same time, the lower end of the chip conveying trough 16 has a hole. The hole drives the coolant to be transported to the inside of the drain chip outlet 19, and the drain chip outlet 19 drives the coolant to be discharged.

[0027] Please see Figure 1 The front end of the CNC lathe body 1 is fixedly connected to a guide rail 7. A turning tool holder 8 for turning the product is installed on the upper end of the guide rail 7. The turning tool holder 8 is installed at the front end of the tailstock 2 and the drive device 5. It is set at the front end of the CNC lathe body 1 through the guide rail 7. The turning tool holder 8 is installed inside the guide rail 7. A lead screw is installed inside the guide rail 7 and the turning tool holder 8. The lead screw is controlled to move by the CNC equipment. When the product is clamped and rotated at high speed, the CNC equipment controls the position movement of the turning tool holder 8, thereby controlling the equipment to perform turning processing.

[0028] Please see Figure 1The tailstock 2 is equipped with a hydraulic rod 3 that moves the push clamping device 4 left and right. One end of the output shaft of the drive device 5 is equipped with a drive clamping mechanism 6. The workpiece to be turned is clamped between the clamping device 4 and the drive clamping mechanism 6. The clamping device 4 and the drive clamping mechanism 6 are installed on the same straight line. At the same time, the product is clamped between the clamping device 4 and the drive clamping mechanism 6. When the drive device 5 is started, the drive device 5 drives the drive clamping mechanism 6 to rotate. The drive clamping mechanism 6 drives the product to be turned to rotate, providing power for clamping and rotating the product to be cut.

[0029] Working principle: During use, the product is clamped between the clamping device 4 and the driving clamping mechanism 6. At the same time, the driving device 5 drives the driving clamping mechanism 6 to rotate, that is, the product rotates at high speed. Simultaneously, the position of the turning tool holder 8 is adjusted, that is, the turning tool holder 8 performs turning processing on the product. During turning, chips and coolant are generated. The chips and coolant slide down and fall to the inside of the conveyor belt 11. The negative pressure device 12 is installed in the middle of the conveyor belt 11. That is, the negative pressure device 12 creates a negative pressure on the inside of the chip collection tank 9, ensuring that the chips are adsorbed on the outside of the conveyor belt 11 and preventing the chips from scattering everywhere. After the conveyor belt 11 rotates, the conveyor belt 11 carries the chips down and the sliding chips move to the space between the two sets of rollers 14. When the rollers 14 rotate, they carry the chips downward and prevent the chips from accumulating inside the chip collection tank 9, thus improving the chip cleaning efficiency. At the same time, the spiral blades 17 are activated, and the spiral blades 17 carry the chips out, and the coolant slides down and is discharged, achieving solid-liquid separation efficiency.

[0030] 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 CNC lathe for machining automotive parts, comprising a CNC lathe body (1), wherein a tailstock (2) is mounted on one side inside the CNC lathe body (1), and a drive unit (5) is mounted on the other side inside the CNC lathe body (1), characterized in that: The CNC lathe body (1) has a chip collection groove (9) inside. Protective plates (10) are installed on both sides of the CNC lathe body (1) above the chip collection groove (9). A conveyor belt (11) is installed obliquely inside the CNC lathe body (1). A negative pressure device (12) is installed inside the conveyor belt (11). A suction pipe (13) for driving gas transmission is installed at one end of the negative pressure device (12). Rollers (14) are installed inside the two sets of CNC lathe bodies (1) at the lower end of the conveyor belt (11). A chip conveying groove (16) is fixed in the middle of the lower end of the chip collection groove (9).

2. The CNC lathe for machining automotive parts according to claim 1, characterized in that: The negative pressure device (12) includes a negative pressure box (121), which is installed inside the conveyor belt (11). A limiting plate (122) is fixedly connected inside the negative pressure box (121). The suction pipe (13) is connected to the limiting plate (122). A diverter plate (123) is fixed at the upper end of the limiting plate (122). A suction hole (124) is opened on the outside of the negative pressure box (121). A hydrophobic plate (125) is sleeved on the outside of the negative pressure box (121).

3. A CNC lathe for machining automotive parts according to claim 1, characterized in that: The roller (14) is externally fixedly connected to a gear (15), and the two sets of gears (15) are meshed with each other. The two sets of rollers (14) are installed inside the chip conveying trough (16).

4. A CNC lathe for machining automotive parts according to claim 1, characterized in that: The debris conveying trough (16) is installed in the middle of the debris collecting trough (9). A hole is provided between the debris conveying trough (16) and the debris collecting trough (9). The conveyor belt (11) is installed obliquely inside the debris collecting trough (9).

5. A CNC lathe for machining automotive parts according to claim 1, characterized in that: The chip conveying trough (16) is equipped with a spiral blade (17), and the lower end of the CNC lathe body (1) is equipped with a sludge discharge trough chip outlet (19). The lower end of one end of the chip conveying trough (16) is fixed with a sludge discharge trough chip outlet (19). The lower end of the chip conveying trough (16) is provided with a hole, and the guide groove opened inside the sludge discharge trough chip outlet (19) is installed at an angle.

6. A CNC lathe for machining automotive parts according to claim 1, characterized in that: The front end of the CNC lathe body (1) is fixedly connected to a guide rail (7), and a turning tool holder (8) for turning the product is installed on the upper end of the guide rail (7). The turning tool holder (8) is installed at the front end of the tailstock (2) and the drive device (5).

7. A CNC lathe for machining automotive parts according to claim 1, characterized in that: The tailstock (2) is equipped with a hydraulic rod (3) that moves left and right for the push clamping device (4). One end of the output shaft of the drive device (5) is equipped with a drive clamping mechanism (6). The workpiece to be turned is clamped between the clamping device (4) and the drive clamping mechanism (6).