Detachable rotary tool rest of numerically controlled lathe

Abstract

The utility model relates to the technical field of numerical control lathes, and discloses a detachable rotary tool rest of a numerical control lathe, which comprises a base plate and a tool apron, the top end of the base plate is rotatably connected with a bidirectional screw rod, both sides of the bidirectional screw rod are in threaded connection with clamping seats, and the clamping seats are in sliding connection with the top end of the base plate. A clamping groove is formed in the top of one side of the clamping seat and connected with a limiting plate in a clamped mode, and a bearing platform for supporting the limiting plate is welded to the middle of the top end of the base plate. The two-way lead screw can be driven through the driving assembly, self-locking of the two-way lead screw can be achieved, the distance between the two clamping seats can be centrally adjusted in the rotating process of the two-way lead screw, the limiting plate is placed between the two clamping seats, and the limiting plate can be clamped through the clamping grooves when the clamping seats move in the opposite direction; therefore, the rotary assembly can be quickly mounted and dismounted through the limiting plate, and bolt-free fixation of the rotary assembly can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of CNC lathe technology, specifically to a detachable rotary tool post for a CNC lathe. Background Technology

[0002] The rotary tool turret of a CNC lathe is a device used to hold various cutting tools for different purposes. It is mounted on the turret head and the automatic tool changing action of the machine tool is realized by the rotation and indexing of the turret head. The main function of the rotary tool turret is to complete multiple or even all machining processes in one workpiece clamping, so as to shorten the auxiliary machining time, reduce the error caused by multiple workpiece clamping, and thus improve the machining efficiency and machining accuracy of the machine tool.

[0003] The "Spherical Rotary Tool Post for CNC Lathe" disclosed in application number "202320363757.1" "includes a spherical rotary mechanism, a servo motor located on one side of the spherical rotary mechanism, a rotary tool post located above the spherical rotary mechanism, a cutting tool located on the rotary tool post, and a spherical size adjustment knob located between the rotary tool post and the spherical rotary mechanism. The beneficial effects of this utility model are: the spherical rotary tool post for CNC lathe greatly improves the accuracy of spherical diameter and sphericity machining of spheres by CNC lathes relying solely on the positional movement of the X / Y axis slides. Moreover, the rotary mechanism can rotate 300° precisely, enabling the precise machining of two or more spheres on a twin-spindle lathe, thereby greatly improving the precision machining performance of traditional CNC lathes."

[0004] However, the above method still has the following drawbacks: the servo motor can drive the rotary mechanism, but the rotary mechanism needs to be fixedly installed on the CNC machine tool with screws, which is inconvenient for disassembly and maintenance. When the CNC lathe vibrates, the screws are easy to loosen, which will reduce the stability of the rotary mechanism. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a detachable rotary tool post for CNC lathes, which has the advantages of easy disassembly and maintenance, and good stability, thus solving the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a detachable rotary tool post for a CNC lathe, comprising a base plate and a tool holder. A bidirectional lead screw is rotatably connected to the top of the base plate, and clamps are threaded to both sides of the bidirectional lead screw. The clamps are slidably connected to the top of the base plate. A clamping groove is provided on the top of one side of the clamp, and a limiting plate is engaged with the clamping groove. A support is welded to the middle of the top of the base plate, and the bottom of the base plate overlaps with the top of the support. Both sides of the limiting plate are provided with slopes. A drive assembly is provided on one side of the top of the base plate, and a rotary assembly is provided at the top of the limiting plate.

[0007] As a preferred technical solution of this utility model, both ends of the bidirectional lead screw are rotatably connected to support plates, the bottom end of the support plate is fixedly connected to the top end of the pad, guide rails are fixedly provided on both sides of the top end of the pad, and sliding grooves are provided on both sides of the bottom end of the clamp, and the bottom end of the clamp is slidably connected to the guide rails through the sliding grooves.

[0008] As a preferred technical solution of this utility model, the drive assembly includes a motor, the output shaft of the motor is fixedly connected to a worm gear, both ends of the worm gear are rotatably connected to supports for it, the worm gear is meshed with a worm wheel, a connecting shaft is fixedly provided in the middle of one side of the worm wheel, and one end of the connecting shaft is fixedly connected to one end of a bidirectional lead screw.

[0009] As a preferred embodiment of this utility model, a mounting position is provided on one side of the top of the pad, the bottom end of the support is welded to the surface of the mounting position, and the bottom end of the motor is fixedly connected to the surface of the mounting position by bolts.

[0010] As a preferred technical solution of this utility model, the rotary assembly includes a housing, a second motor is fixedly installed on one side of the housing, a second worm gear and a support shaft are rotatably connected inside the housing, one end of the second worm gear is fixedly connected to the output shaft of the second motor, a second worm wheel that meshes with the second worm gear is fixedly provided on the surface of the support shaft, and the middle part of the bottom end of the tool holder is fixedly connected to the top end of the support shaft.

[0011] As a preferred technical solution of this utility model, the bottom end of the outer shell is fixedly connected to the middle of the top end of the limiting plate, a cover plate is fixedly installed on one side of the outer shell by screws, and the two sides of the limiting plate are respectively engaged with the interior of two clamping grooves.

[0012] As a preferred embodiment of this utility model, the four sides of the tool holder are provided with tool grooves for mounting the tool, and the four sides of the top of the tool holder are threaded with a number of positioning screws.

[0013] As a preferred technical solution of this utility model, the clamp is provided with a threaded groove in the middle, and the clamp is threadedly connected to the bidirectional lead screw through the threaded groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The drive assembly can drive the bidirectional lead screw and achieve self-locking of the bidirectional lead screw. During the rotation of the bidirectional lead screw, the distance between the two clamps can be adjusted in the center. By placing the limit plate between the two clamps, the limit plate can be clamped through the clamping groove when the clamps move in opposite directions. The rotary assembly can be quickly installed and disassembled through the limit plate, and the rotary assembly can be fixed without bolts. When the CNC lathe vibrates, the stability of the rotary assembly can be maintained.

[0016] 2. The support platform can support the pad and maintain its flatness. The slopes on both sides of the limiting plate can act as guides, making it easy to put the clamp on both sides of the limiting plate. The tool holder can be used to install the tool. The rotary assembly can drive the tool holder to rotate, making it easy to switch tools. Attached Figure Description

[0017] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0018] Figure 2 This is the second structural schematic diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the pad of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the clamp of this utility model;

[0022] Figure 6 This is a schematic diagram of the internal structure of the outer shell of this utility model.

[0023] In the diagram: 1. Pad; 2. Double-acting lead screw; 3. Clamp; 4. Threaded groove; 5. Slide groove; 6. Clamping groove; 7. Drive assembly; 701. Motor 1; 702. Worm 1; 703. Support; 704. Worm wheel 1; 8. Support plate; 9. Foundation; 10. Guide rail; 11. Limiting plate; 12. Slope; 13. Rotary assembly; 1301. Housing; 1302. Cover plate; 1303. Worm 2; 1304. Support shaft; 1305. Worm wheel 2; 1306. Motor 2; 14. Tool holder; 15. Tool groove; 16. Positioning screw; 17. Mounting position. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-6 A detachable rotary tool post for a CNC lathe includes a base plate 1 and a tool holder 14. A double-acting lead screw 2 is rotatably connected to the top of the base plate 1. Both sides of the double-acting lead screw 2 are threadedly connected to clamps 3, which are slidably connected to the top of the base plate 1. A clamping groove 6 is provided on the top of one side of the clamping groove 3, which engages with a limit plate 11. A support platform 9 for supporting the limit plate 11 is welded to the middle of the top of the base plate 1. The bottom of the base plate 1 overlaps with the top of the support platform 9, which supports the base plate 1 and maintains its flatness. Both sides of the limit plate 11 are provided with slopes 12, and one side of the top of the base plate 1 is provided with a drive mechanism for the double-acting lead screw 2. The drive assembly 7 can drive the bidirectional lead screw 2 and achieve self-locking of the bidirectional lead screw 2. During the rotation of the bidirectional lead screw 2, the distance between the two clamps 3 can be adjusted in the center. By placing the limiting plate 11 between the two clamps 3, the clamps 3 can clamp the limiting plate 11 through the clamping groove 6. The rotary assembly 13 can be quickly installed and disassembled through the limiting plate 11, and the firmness and stability of the rotary assembly 13 can be guaranteed. The top of the limiting plate 11 is provided with a rotary assembly 13 for controlling the rotation of the tool holder 14. The rotary assembly 13 can drive the tool holder 14 to rotate, which is convenient for tool switching.

[0026] In this embodiment, preferably, the drive assembly 7 includes a motor 701, the output shaft of the motor 701 is fixedly connected to a worm gear 702, both ends of the worm gear 702 are rotatably connected to supports 703 for supporting it, the worm gear 702 is meshed with a worm wheel 704, a connecting shaft is fixedly provided in the middle of one side of the worm wheel 704, one end of the connecting shaft is fixedly connected to one end of the bidirectional lead screw 2, a mounting position 17 is provided on one side of the top of the pad 1, the bottom end of the support 703 is welded to the surface of the mounting position 17, the bottom end of the motor 701 is fixedly connected to the surface of the mounting position 17 by bolts, the supports 703 can support both ends of the worm gear 702, the motor 701 drives the worm gear 702, the worm gear 702 can drive the bidirectional lead screw 2 to rotate through the worm wheel 704, and can realize the self-locking of the bidirectional lead screw 2;

[0027] In this embodiment, preferably, the rotary assembly 13 includes a housing 1301. A second motor 1306 is fixedly mounted on one side of the housing 1301. A second worm gear 1303 and a support shaft 1304 are rotatably connected inside the housing 1301. One end of the second worm gear 1303 is fixedly connected to the output shaft of the second motor 1306. A second worm wheel 1305, which meshes with the second worm gear 1303, is fixedly provided on the surface of the support shaft 1304. The middle part of the bottom end of the tool holder 14 is fixedly connected to the top end of the support shaft 1304. The bottom end of the housing 1301 is connected to the middle part of the top end of the limiting plate 11. The housing 1301 is fixedly connected, with a cover plate 1302 fixedly installed on one side by screws. The two sides of the limiting plate 11 are respectively engaged with the interior of the two clamping grooves 6. The housing 1301 can support the worm gear 1303 and the support shaft 1304. The worm gear 1303 is driven by the motor 1306, and the worm gear 1303 can drive the support shaft 1304 to rotate through the worm wheel 1305, which can control the rotation of the tool holder 14 and realize the self-locking of the support shaft 1304. By opening the cover plate 1302, the interior of the housing 1301 can be repaired.

[0028] In this embodiment, preferably, both ends of the bidirectional lead screw 2 are rotatably connected to support plates 8. The bottom end of the support plate 8 is fixedly connected to the top end of the pad 1. The support plates 8 can support both ends of the bidirectional lead screw 2. Guide rails 10 are fixedly provided on both sides of the top end of the pad 1. Slide grooves 5 are provided on both sides of the bottom end of the clamp 3. The bottom end of the clamp 3 is slidably connected to the guide rails 10 through the slide grooves 5. The guide rails 10 and slide grooves 5 can guide the clamp 3, which can ensure the stability and positional accuracy of the clamp 3. A threaded groove 4 is provided in the middle of the clamp 3. The clamp 3 is threadedly connected to the bidirectional lead screw 2 through the threaded groove 4. The rotational motion of the bidirectional lead screw 2 can be converted into the linear motion of the clamp 3 through the threaded groove 4.

[0029] In this embodiment, preferably, the four sides of the tool holder 14 are provided with tool slots 15 for mounting the tool, and the four sides of the top of the tool holder 14 are threaded with a number of positioning screws 16. The tool can be mounted through the tool slots 15 and the tool can be fixed through the positioning screws 16.

[0030] In use, the pad 1 is first welded to the frame of the CNC lathe. Then, the worm gear 702 is driven by the motor 701 of the drive assembly 7. The worm gear 702 can drive the double-acting screw 2 to rotate through the worm wheel 704. The double-acting screw 2 can convert the rotational motion into the linear motion of the clamp 3 through the threaded groove 4. The guide rail 10 can guide the clamp 3 through the slide groove 5. The two clamps 3 can be controlled to move in opposite directions. After the distance between the clamps 3 is adjusted, the limiting plate 11 is placed on the support 9. Then, the worm gear 702 is driven in the opposite direction by the motor 701. The slope 12 on both sides of the limiting plate 11 can play a guiding role. The clamp 3 can be sleeved on both sides of the limiting plate 11 through the clamping groove 6, which can quickly fix the limiting plate 11.

[0031] After the limit plate 11 is fixed, it can support the rotary assembly 13, enabling boltless installation of the rotary assembly 13. The operator can install the cutting tool through the tool slot 15 and fix it through the positioning screw 16. After the cutting tool is fixed, the workpiece can be turned. When the cutting tool needs to be changed, the operator drives the worm gear 1303 through the motor 1306 of the rotary assembly 13. The worm gear 1303 can drive the support shaft 1304 to rotate through the worm wheel 1305, which can control the rotation of the tool holder 14 and achieve self-locking of the support shaft 1304.

[0032] When it is necessary to disassemble the rotary assembly 13 from the CNC lathe, the operator drives the worm gear 702 again through the motor 701, so that the two clamps 3 move in opposite directions, so that the clamps 3 separate from the limit plate 11, and the limit plate 11 can be removed from the support 9.

[0033] 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 detachable rotary tool post for a CNC lathe, comprising a base plate (1) and a tool holder (14), characterized in that: The top of the pad (1) is rotatably connected to a two-way screw (2), and both sides of the two-way screw (2) are threadedly connected to a clamp (3). The clamp (3) is slidably connected to the top of the pad (1). A clamping groove (6) is provided on the top of one side of the clamp (3). The clamping groove (6) is engaged with a limiting plate (11). A support platform (9) is welded to the middle of the top of the pad (1). The bottom of the pad (1) overlaps with the top of the support platform (9). Both sides of the limiting plate (11) are provided with slopes (12). A driving component (7) is provided on one side of the top of the pad (1). A rotating component (13) is provided on the top of the limiting plate (11).

2. The detachable rotary tool post of the CNC lathe according to claim 1, characterized in that: Both ends of the bidirectional lead screw (2) are rotatably connected to support plates (8). The bottom end of the support plate (8) is fixedly connected to the top end of the pad (1). Guide rails (10) are fixedly provided on both sides of the top end of the pad (1). Slide grooves (5) are provided on both sides of the bottom end of the clamp (3). The bottom end of the clamp (3) is slidably connected to the guide rails (10) through the slide grooves (5).

3. The detachable rotary tool post of the CNC lathe according to claim 1, characterized in that: The drive assembly (7) includes a motor (701), the output shaft of which is fixedly connected to a worm gear (702), both ends of which are rotatably connected to supports (703) for support, the worm gear (702) is meshed with a worm wheel (704), a connecting shaft is fixedly provided in the middle of one side of the worm wheel (704), and one end of the connecting shaft is fixedly connected to one end of a bidirectional lead screw (2).

4. The detachable rotary tool post of the CNC lathe according to claim 3, characterized in that: The pad (1) has a mounting position (17) on one side of its top end. The bottom end of the support (703) is welded to the surface of the mounting position (17). The bottom end of the motor (701) is fixedly connected to the surface of the mounting position (17) by bolts.

5. The detachable rotary tool post of the CNC lathe according to claim 1, characterized in that: The rotary assembly (13) includes a housing (1301), a motor (1306) is fixedly installed on one side of the housing (1301), a worm gear (1303) and a support shaft (1304) are rotatably connected inside the housing (1301), one end of the worm gear (1303) is fixedly connected to the output shaft of the motor (1306), a worm wheel (1305) is fixedly provided on the surface of the support shaft (1304) and meshes with the worm gear (1303), and the middle part of the bottom end of the tool holder (14) is fixedly connected to the top end of the support shaft (1304).

6. The detachable rotary tool post of the CNC lathe according to claim 5, characterized in that: The bottom end of the outer shell (1301) is fixedly connected to the middle of the top of the limiting plate (11). A cover plate (1302) is fixedly installed on one side of the outer shell (1301) by screws. The two sides of the limiting plate (11) are respectively engaged with the interior of two clamping grooves (6).

7. The detachable rotary tool post of the CNC lathe according to claim 1, characterized in that: The tool holder (14) has tool slots (15) for mounting tools on all four sides, and a number of positioning screws (16) are threaded onto the four sides of the top of the tool holder (14).

8. The detachable rotary tool post of the CNC lathe according to claim 1, characterized in that: The clamp (3) has a threaded groove (4) in the middle, and the clamp (3) is threadedly connected to the bidirectional lead screw (2) through the threaded groove (4).

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