Large-inclination high-rigidity numerical control lathe

Abstract

The application belongs to the technical field of lathe, and relates to a large-inclination high-rigidity numerical control lathe, which comprises a lathe body, a main shaft box, a horizontal slide rail, a moving seat, an inclined slide rail, a tool tower slide seat, a feeding mechanism and a driving mechanism, the lathe body is provided with a mounting seat one and a mounting seat two, the main shaft box is fixedly installed on the mounting seat one, and the feeding mechanism is fixedly installed on the main shaft box; the horizontal slide rail is fixedly installed on the mounting seat two, the driving mechanism one is used for driving the moving seat to slide on the horizontal slide rail, the inclined slide rail is fixedly installed on the moving seat, the inclined slide rail is perpendicular to the horizontal slide rail, the inclination angle between the inclined slide rail and the horizontal plane is greater than 45 DEG, and the driving mechanism two is used for driving the tool tower slide seat to slide on the inclined slide rail. The large-inclination design of the inclined slide rail is increased, the chip removal dead angle is effectively eliminated, the rigidity and stability of the overall structure are improved, the requirement of high-precision machining is met, and the production efficiency is effectively improved by the additionally-added automatic feeding mechanism.

Description

Technical Field

[0001] This invention belongs to the field of lathe technology, and specifically relates to a high-rigidity CNC lathe with a large tilt angle. Background Technology

[0002] Slant bed CNC lathes, with their unique slanted bed design, exhibit significant advantages in precision machining, including smoother chip removal, more spacious operating space, and excellent overall structural rigidity, thus gaining widespread application. However, despite these advantages, existing slant bed CNC lathes still face the following unresolved challenges in practical use:

[0003] Firstly, the bed tilt angle of most current slant bed CNC lathes is set between 30° and 45°. While this angle range helps with chip removal, it cannot completely eliminate dead zones for chip removal. Chips generated during cutting tend to accumulate near the guide rails, affecting the cleanliness of the machining environment and accelerating guide rail wear, thus shortening the equipment's lifespan and reducing machining accuracy.

[0004] Secondly, while pursuing higher chip removal efficiency, the large-angle bed structure often struggles to balance structural stability and rigidity. This design contradiction leads to accuracy drift after long-term high-load operation, affecting the dimensional consistency and surface quality of machined parts, posing a challenge to high-precision machining tasks.

[0005] Finally, in the material loading stage, existing slant bed CNC lathes mainly rely on manual operation, with a relatively low degree of automation. This not only increases the labor intensity of operators but also limits production efficiency and continuous operation capability, making it difficult to meet the demands of modern intelligent manufacturing for efficient and automated production processes. Summary of the Invention

[0006] In view of this, the purpose of this invention is to address the problems in the prior art, such as the dead angle in chip removal of slant bed CNC lathes, the difficulty in balancing the stability and rigidity of large-angle structures, and the low degree of automation, by providing a large-angle, high-rigidity CNC lathe.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A high-rigidity CNC lathe with a large tilt angle includes a bed body, a spindle box, a horizontal slide rail, a moving seat, an inclined slide rail, a turret slide, a loading mechanism, a first drive mechanism, and a second drive mechanism. The spindle box is used to clamp the workpiece, and the turret slide is used to clamp the tool. The bed body is provided with a first mounting seat and a second mounting seat. The spindle box is fixedly mounted on the first mounting seat, and the loading mechanism is fixedly mounted on the spindle box. The horizontal slide rails are fixedly mounted on the mounting base two, and multiple horizontal slide rails are arranged in parallel. The drive mechanism one is driven and connected to the moving base. The drive mechanism one is used to drive the moving base to slide on the multiple horizontal slide rails. The inclined slide rails are fixedly mounted on the moving base. The inclined slide rails are perpendicular to the horizontal slide rails. The inclination angle between the inclined slide rails and the horizontal plane is greater than 45°, so that the iron chips generated by cutting slide down under the action of gravity. The drive mechanism two is driven and connected to the turret slide. The drive mechanism two is used to drive the turret slide to slide on the inclined slide rails. By controlling the drive mechanism one and the drive mechanism two, the turret slide can be driven to approach or move away from the spindle box.

[0008] To better realize the present invention, the above structure is further optimized by providing a protective cover on the movable seat at an angle, the angle of which is the same as the angle of which is the tilt of the inclined slide rail.

[0009] To better realize the present invention, the above structure is further optimized. The first protective cover is provided with two baffles, which are respectively arranged on both sides of the inclined slide rail. The second protective cover is provided on the turret slide, and both sides of the second protective cover are provided with lower edges, which are respectively arranged on the outside of the two baffles.

[0010] To better realize the present invention, the above structure is further optimized, and the tilt angle between the tilting slide rail and the horizontal plane is 70°.

[0011] To better realize the present invention, further optimizations are made to the above structure, and both drive mechanism one and drive mechanism two adopt ball screw mechanisms.

[0012] To better realize the present invention, the above structure is further optimized by providing reinforcing ribs on the main body of the bed.

[0013] To better realize the present invention, the above structure is further optimized by providing multiple chip removal guide grooves on the main body of the bed.

[0014] To better realize the present invention, the above structure is further optimized. The feeding mechanism includes a base, a telescopic support, and a gripper. The base is fixedly installed on the spindle box. A slide rail one and a cylinder one are fixedly installed on the base. The cylinder one drives the telescopic support to slide on the slide rail one. A slide rail two and a cylinder two are fixedly installed on the telescopic support. The cylinder two drives the gripper to slide on the slide rail two. By controlling the cylinder one and the cylinder two, the gripper can be driven to approach or move away from the spindle box.

[0015] To better realize the present invention, the above structure is further optimized by using a pneumatic gripper or an electric gripper.

[0016] To better realize the present invention, the above structure is further optimized. A feeding bar is inclinedly arranged on the base, and a feeding groove is opened on the side of the feeding bar. The feeding groove is used to place the workpiece. The two ends of the feeding groove are the feeding end and the discharging end, respectively. The height of the feeding end is higher than the height of the discharging end. A positioning block is arranged outside the discharging end. The workpiece in the feeding groove can slide against the positioning block. A notch is opened on the base. By controlling cylinder one and cylinder two, the gripper can be driven to pass through the notch, so that the gripper approaches or moves away from the workpiece against the positioning block.

[0017] Compared with the prior art, the present invention has the following advantages: The large-angle, high-rigidity CNC lathe provided by this invention features a large-angle design for the inclined slide rails. By directly mounting the inclined slide rails on a movable seat that can slide along the horizontal slide rails, the large-angle design of the inclined slide rails allows the iron chips generated during cutting to slide off quickly and automatically under the influence of gravity, preventing them from accumulating near the inclined slide rails and the turret slide. This effectively eliminates dead angles in chip removal and prevents iron chip wear on the guide rail structure. While ensuring chip removal efficiency, the integrated mounting seats 1 and 2 on the main body of the lathe further enhance the rigidity and stability of the overall structure. Combined with multiple horizontal slide rails arranged in parallel, this provides stable support, preventing accuracy drift after long-term high-load operation of the machine tool. This ensures the dimensional consistency and surface finish of the machined parts, meeting the requirements of high-precision machining. Furthermore, this device incorporates an automated loading mechanism, eliminating the need for manual loading operations, reducing the labor intensity of operators, supporting continuous automatic operation, effectively improving production efficiency, and adapting to the production needs of modern intelligent manufacturing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments 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.

[0019] Figure 1 This is one of the structural schematic diagrams of the large tilt angle high rigidity CNC lathe of the present invention; Figure 2 This is a side view of the large tilt angle high rigidity CNC lathe of the present invention; Figure 3 This is the second structural schematic diagram of the large tilt angle high rigidity CNC lathe of the present invention; Figure 4 yes Figure 3 A magnified schematic diagram of the structure of part A in the diagram; Figure 5 This is one of the structural schematic diagrams of the present invention after the protective cover has been removed; Figure 6 This is the second schematic diagram of the structure of the present invention after the protective cover has been removed; Figure 7 yes Figure 6 A magnified schematic diagram of the partial structure of B in the diagram; Figure 8 This is one of the structural schematic diagrams of the feeding mechanism in this invention; Figure 9 This is the second schematic diagram of the feeding mechanism in this invention.

[0020] In the picture: 1. Bed body; 101. Mounting seat one; 102. Mounting seat two; 2. Spindle box; 3. Horizontal slide rail; 4. Moving seat; 5. Inclined slide rail; 6. Turret slide; 7. Feeding mechanism; 71. Feeding bar; 701. Base; 702. Telescopic support; 703. Gripper; 704. Slide rail one; 705. Cylinder one; 706. Slide rail two; 707. Cylinder two; 708. Feed groove; 709. Positioning block; 710. Notch; 8. Drive mechanism one; 9. Drive mechanism two; 10. Protective cover one; 1001. Edge guard; 11. Protective cover two; 1101. Lower edge; 12. Reinforcing rib; 13. Chip removal guide groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0022] In the description of this invention, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] Please refer to the appendix. Figure 1 To be continued Figure 9 As shown, the large-angle, high-rigidity CNC lathe provided by this invention mainly comprises a bed body 1, a spindle box 2, a horizontal slide rail 3, a moving seat 4, an inclined slide rail 5, a turret slide 6, a loading mechanism 7, a drive mechanism one 8, and a drive mechanism two 9. Inside the bed body 1, multiple reinforcing ribs 12 are specially designed and arranged. These ribs significantly enhance the overall structural rigidity and vibration resistance of the bed, thereby ensuring stable operation of the machine tool under high-speed, heavy-load cutting conditions. Furthermore, multiple chip removal guide grooves 13 are provided on the bed body 1. These grooves effectively guide the rapid discharge of chips generated during cutting, greatly improving chip removal efficiency and preventing chip accumulation from affecting processing. Multiple leveling shim mounting positions are also evenly distributed at the bottom of the bed body 1, facilitating quick and precise leveling of the machine tool on-site and ensuring the overall levelness of the machine.

[0025] The spindle box 2 is mainly used for clamping and driving the workpiece rotation, while the turret slide 6 is used for mounting and fixing the cutting tools. High-precision mounting seats 101 and 102 are integrally formed on the bed body 1 through machining. These mounting seats, integrally cast and machined with the bed body 1, have extremely high coaxiality and parallelism accuracy. Furthermore, due to their integral structure, they will not experience accuracy drift due to loosening during long-term use, making them highly suitable for machining applications requiring extremely high precision. The spindle box 2 is securely mounted on mounting seat 101, while the loading mechanism 7 is fixedly mounted on the corresponding position on the side of the spindle box 2.

[0026] As attached Figure 5 Appendix Figure 6 and appendix Figure 7As shown, the horizontal slide rail 3 is horizontally fixed on the mounting base 102, and to provide extremely stable support, multiple horizontal slide rails 3 are arranged in parallel. This multi-rail parallel layout can provide uniform and stable load-bearing for the moving parts, effectively avoiding the accuracy decay or drift problems that may occur after the machine tool has been running under high load and high intensity for a long time. This reliably ensures the consistency of the dimensions and surface finish of the processed parts, and can fully meet the processing requirements of high precision and high stability. The moving base 4 is driven by the drive mechanism 8, which is used to drive the moving base 4 to slide on the multiple horizontal slide rails 3. The drive mechanism 8 preferably adopts a high-precision ball screw mechanism, which has precise control and rapid response. The tilting slide rail 5 is fixedly installed on the moving base 4, and its installation direction is perpendicular to the horizontal slide rail 3. The angle between the tilting slide rail 5 and the horizontal plane is designed to be greater than 45°. In the preferred embodiment, the tilting angle is set to 70°. By adopting this large-angle structural design, the cutting chips generated can quickly and automatically slide down the inclined surface of the slide rail under their own gravity, preventing accumulation around the inclined slide rail 5 and the turret slide 6. This completely eliminates dead zones for chip removal and avoids wear and damage to the sliding surface of the guide rail caused by the chips. The turret slide 6 is driven by another set of drive mechanisms, number 2 and 9. Drive mechanism 2 and 9 are used to drive the turret slide 6 to slide on the inclined slide rail 5. Drive mechanism 2 and 9 also adopt a high-precision ball screw mechanism. By coordinating and controlling drive mechanisms 1 and 2 and 9, the turret slide 6 can be precisely driven to move in a two-dimensional plane, allowing it to approach or move away from the workpiece on the spindle box 2.

[0027] As attached Figure 3 and attached Figure 4 As shown, a protective cover 10 is installed at an angle on the movable seat 4. The main function of this protective cover is to prevent iron filings splashed during cutting from entering the precision guide rail below, thus affecting the guide rail's lifespan and motion accuracy. The tilt angle of the protective cover 10 is set to match the tilt angle of the tilting slide rail 5 to ensure that iron filings can slide down the cover surface quickly. To further prevent iron filings from intruding into the internal mechanism of the turret slide 6, two baffles 1001 are specially provided on the protective cover 10, which are respectively arranged on both sides of the tilting slide rail 5. At the same time, a second protective cover 11 is installed on the turret slide 6, and both sides of the second protective cover 11 have downwardly extending lower edges 1101. These two lower edges 1101 are respectively arranged on the outside of the two baffles 1001, so that the overall structure of the second protective cover 11 can effectively wrap around the outside of the baffles 1001. This design ensures that the turret slide 6 can slide normally and smoothly along the inclined slide rail 5, while reliably preventing iron filings from intruding into the internal space protected by the protective cover 11 from the side.

[0028] As attached Figure 8 and attached Figure 9As shown, the loading mechanism 7 specifically consists of a base 701, a telescopic support 702, and grippers 703. By adding an automated loading mechanism 7, manual loading operations are eliminated, reducing the labor intensity of operators, supporting continuous automatic operation of the equipment, effectively improving production efficiency, and adapting to the production needs of modern intelligent manufacturing. The grippers 703 can be selected as pneumatic or electric grippers according to actual needs. The base 701 is fixedly installed on the spindle box 2, and a slide rail 704 and a driving cylinder 705 are fixedly installed on it. The cylinder 705 drives the telescopic support 702 to slide along the slide rail 704. A second slide rail 706 and a second cylinder 707 are fixedly installed on the telescopic support 702, and the cylinder 707 drives the grippers 703 to slide along the slide rail 706. By controlling the actions of the cylinders 705 and 707, the grippers 703 can be driven to perform grasping and placing actions approaching or moving away from the spindle box 2. As attached Figure 2 As shown, the workpiece clamping center of the spindle box 2 and the gripping center of the jaw 703 are designed on the same horizontal plane to facilitate precise docking.

[0029] A feeding bar 71 is also installed at an angle on the base 701. A feeding groove 708 is provided on the side of the feeding bar 71 for sequentially placing workpieces to be processed. The two ends of the feeding groove 708 are the feeding end and the discharging end, respectively. The height of the feeding end is designed to be higher than that of the discharging end, thus forming a natural inclined slide. The feeding end can be connected to an external vibratory feeder to achieve automatic workpiece conveying. After a workpiece is placed from the feeding end of the feeding groove 708, it automatically slides to the discharging end due to the inclined angle. A positioning block 709 is provided on the outside of the discharging end. The workpiece sliding to the discharging end will abut against the positioning block, thus achieving precise positioning, which greatly facilitates accurate gripping by the gripper 703. When a workpiece is removed by the gripper, the subsequent workpiece will automatically slide down and abut against the positioning block 709, eliminating the need for an additional drive mechanism and achieving continuous feeding and automatic positioning. In order to avoid the movement of the gripper 703, a notch 710 is provided on the base 701. By controlling cylinder 1 705 and cylinder 2 707, the gripper 703 can be driven to pass through the notch 710, so that the gripper 703 can approach or move away from the workpiece that has been positioned on the positioning block 709, thus completing the automatic loading and unloading cycle.

[0030] During feeding, the workpiece is fed into the feed end of the feed trough 708 via a feeding vibratory feeder, and then automatically slides down to the positioning block 709 outside the discharge end. Then, cylinder 705 retracts, driving the telescopic support 702 to move on slide rail 704, so that the front end of the gripper 703 faces the workpiece. Next, cylinder 707 extends, driving the gripper 703 through the notch 710 to approach the workpiece. Simultaneously, the gripper 703 opens, clamping the workpiece. Then, cylinder 707 retracts, removing the workpiece from the feed trough 708. 8. Pull out (under the action of gravity, the next workpiece to be processed will automatically slide down and abut against the positioning block 709). Then, cylinder 1 705 extends and sends the gripper 703 to the spindle box 2 until the gripper 703 is facing the spindle box 2. Then, cylinder 2 707 extends and drives the gripper 703 to approach the spindle box 2. At the same time, the spindle box 2 opens to transfer the workpiece. When the workpiece is sent into the spindle box 2 and fixed, the gripper 703 releases the workpiece and returns to its original position to prepare for the loading of the next workpiece.

[0031] During cutting, drive mechanism 8 and drive mechanism 9 approach the spindle box 2 via drive turret slide 6 to cut the workpiece. The generated chips fall down along protective cover 10 and protective cover 11 to the bottom of the bed body 1 and are finally discharged through chip removal guide groove 13.

[0032] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A high-rigidity CNC lathe with a large tilt angle, characterized in that: The machine includes a bed body (1), a spindle box (2), a horizontal slide rail (3), a moving seat (4), an inclined slide rail (5), a turret slide (6), a loading mechanism (7), a drive mechanism one (8), and a drive mechanism two (9). The spindle box (2) is used to clamp workpieces, and the turret slide (6) is used to clamp tools. The bed body (1) is provided with a mounting seat one (101) and a mounting seat two (102). The spindle box (2) is fixedly installed on the mounting seat one (101), and the loading mechanism (7) is fixedly installed on the spindle box (2). The horizontal slide rail (3) is horizontally fixedly installed on the mounting base two (102), and multiple horizontal slide rails (3) are arranged in parallel. The first drive mechanism (8) is drivenly connected to the moving base (4). The first drive mechanism (8) is used to drive the moving base (4) to slide on multiple horizontal slide rails (3). The inclined slide rail (5) is fixedly installed on the moving base (4). The inclined slide rail (5) is perpendicular to the horizontal slide rail (3). The inclined angle between the inclined slide rail (5) and the horizontal plane is greater than 45°, so that the iron chips generated by cutting slide down under the action of gravity. The second drive mechanism (9) is drivenly connected to the turret slide (6). The second drive mechanism (9) is used to drive the turret slide (6) to slide on the inclined slide rail (5). By controlling the first drive mechanism (8) and the second drive mechanism (9), the turret slide (6) can be driven to approach or move away from the spindle box (2).

2. The large-angle, high-rigidity CNC lathe according to claim 1, characterized in that: A protective cover (10) is inclined on the movable seat (4), and the inclination angle of the protective cover (10) is the same as the inclination angle of the inclined slide rail (5).

3. The high-rigidity CNC lathe with large tilt angle according to claim 2, characterized in that: The first protective cover (10) is provided with two baffles (1001), and the two baffles (1001) are respectively arranged on both sides of the inclined slide rail (5). The second protective cover (11) is provided on the turret slide (6), and the second protective cover (11) is provided with a lower edge (1101) on both sides. The two lower edges (1101) are respectively arranged on the outside of the two baffles (1001).

4. The large-angle, high-rigidity CNC lathe according to claim 1, characterized in that: The tilt angle between the tilting slide rail (5) and the horizontal plane is 70°.

5. The large-angle, high-rigidity CNC lathe according to claim 1, characterized in that: Both the first drive mechanism (8) and the second drive mechanism (9) adopt ball screw mechanisms.

6. The high-rigidity CNC lathe with large tilt angle according to claim 1, characterized in that: The main body of the bed (1) is provided with reinforcing ribs (12).

7. The large-angle, high-rigidity CNC lathe according to claim 1, characterized in that: The main body of the bed (1) is provided with multiple chip removal guide grooves (13).

8. The high-rigidity CNC lathe with large tilt angle according to claim 1, characterized in that: The feeding mechanism (7) includes a base (701), a telescopic support (702), and a gripper (703). The base (701) is fixedly installed on the spindle box (2). A slide rail (704) and a cylinder (705) are fixedly installed on the base (701). The cylinder (705) drives the telescopic support (702) to slide on the slide rail (704). A slide rail (706) and a cylinder (707) are fixedly installed on the telescopic support (702). The cylinder (707) drives the gripper (703) to slide on the slide rail (706). By controlling the cylinder (705) and the cylinder (707), the gripper (703) can be driven to approach or move away from the spindle box (2).

9. The large tilt angle high rigidity CNC lathe according to claim 8, characterized in that: The gripper (703) is either a pneumatic gripper or an electric gripper.

10. The large-angle, high-rigidity CNC lathe according to claim 8, characterized in that: A feeding bar (71) is inclinedly arranged on the base (701). A feeding groove (708) is opened on the side of the feeding bar (71). The feeding groove (708) is used to place the workpiece. The two ends of the feeding groove (708) are the feeding end and the discharging end, respectively. The height of the feeding end is higher than the height of the discharging end. A positioning block (709) is arranged outside the discharging end. The workpiece in the feeding groove (708) can slide against the positioning block (709). A notch (710) is opened on the base (701). By controlling the first cylinder (705) and the second cylinder (707), the gripper (703) can be driven to pass through the notch (710), so that the gripper (703) approaches or moves away from the workpiece against the positioning block (709).

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