Full-protection tool turret mechanism for gang tool type numerical control lathe

Abstract

The utility model relates to the technical field of tool turrets of numerical control lathes, in particular to a full-protection tool turret mechanism for a gang tool type numerical control lathe, which comprises a tool turret seat, a rotating shaft is rotatably connected onto the tool turret seat, and the end of the rotating shaft is fixedly connected with a tool turret. The multi-point locking assembly comprises two electric push rods fixedly installed on the outer wall of the tool turret base, the telescopic ends of the two electric push rods are fixedly connected with a bearing plate, the outer wall of the bearing plate is fixedly connected with a bottom frame, and the peripheral wall of the bottom frame is fixedly connected with a plurality of inserting shafts. The tool turret can be mechanically locked and fixed in a multi-point mode through the inserting fit of the inserting shafts and the inserting grooves, so that the tool changing stability of the tool turret is guaranteed, and the machining precision is guaranteed. And the tool turret can be fully buffered and protected, so that the tool turret is prevented from being abraded due to impact or slight shaking in the tool changing process, and the use performance of the tool turret is favorably kept.

Description

Technical Field

[0001] This utility model relates to the field of CNC lathe turret technology, specifically to a fully protective turret mechanism for a bar-type CNC lathe. Background Technology

[0002] A CNC lathe is an automated machine tool that uses a computer program to control the movement of cutting tools along coordinate axes to perform turning operations on rotating workpieces. It can efficiently and accurately process rotating parts such as shafts and discs. The turret is a key component for mounting cutting tools. It can rotate around its own axis and accurately position and switch different cutting tools through a preset program to achieve multi-process machining of the workpiece. Its positioning accuracy and reliability directly affect the machining efficiency and quality.

[0003] Existing technologies often have the following problems when used:

[0004] Turret mechanisms often employ a single-point locking structure during tool change, resulting in low stability. Under high-speed rotation or cutting vibration, displacement deviations can easily occur, leading to a decrease in machining accuracy. Furthermore, turret mechanisms lack a buffer structure to mitigate impacts during locking, making them prone to inertial impacts or minor vibrations during tool switching. Over time, this can cause mechanical wear and affect the turret's performance. Utility Model Content

[0005] To address the aforementioned shortcomings of existing technologies, this utility model provides a fully protective turret mechanism for a bar-type CNC lathe. This mechanism effectively solves the problems of displacement deviation in turret mechanisms using single-point locking structures under high-speed rotation or cutting vibration, leading to decreased machining accuracy, and the lack of impact buffering structures during locking, which affects the performance of the turret after long-term use.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a fully protective turret mechanism for a bar-type CNC lathe, comprising:

[0008] A turret base, on which a rotating shaft is rotatably connected, and a turret is fixedly connected to the end of the rotating shaft;

[0009] A multi-point locking assembly includes two electric push rods fixedly installed on the outer wall of the turret base. The telescopic ends of the two electric push rods are fixedly connected to a support plate. A bottom frame is fixedly connected to the outer wall of the support plate. Several plug-in shafts are fixedly connected to the outer peripheral wall of the bottom frame. Several slots are opened on the outer wall of the turret base, and the plug-in shafts match the slots.

[0010] Several buffer and protective components are slidably connected to the inner side of the bottom frame.

[0011] Furthermore, a PLC controller is fixedly installed on the outer wall of the turret base, and the PLC controller, the turret base, and the two electric push rods are electrically connected to an external power supply.

[0012] Furthermore, the buffer protection assembly includes a rotating frame slidably connected to the inner side of the bottom frame. An adapter plate is fixedly connected to the inner wall of the rotating frame, and an arc-shaped guide rod is fixedly connected to the adapter plate. An abutment plate is fixedly connected to the inner wall of the bottom frame. A sliding hole is provided on the abutment plate, and a translation ring is slidably connected to the sliding hole. The translation ring slides with the arc-shaped guide rod, and a buffer spring is fixedly connected between the translation ring and the adapter plate.

[0013] Furthermore, the bottom frame has a concave cross-section, the rotating frame has an L-shaped cross-section, the outer diameter of the rotating frame is smaller than the inner diameter of the bottom frame, and a silicone rubber corrugated ring is fixedly connected between the bottom frame and the rotating frame.

[0014] Furthermore, an elastic airbag is fixedly connected to the inner wall of the bottom frame, and a pressure plate is fixedly connected to the end of the elastic airbag. The pressure plate is pressed and engaged with the arc-shaped guide rod.

[0015] Furthermore, damping friction plates are fixedly connected to the outer wall of the rotating frame and the outer wall of the turret.

[0016] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0017] This invention features a multi-point locking assembly. After the turret rotates to the tool changing position, the PLC controller can control the extension and retraction of the electric push rod to move, thereby driving the base frame and several plug-in shafts to insert into the corresponding slots on the turret. The turret is mechanically locked and fixed at multiple points through the insertion and engagement of the plug-in shafts and slots, ensuring the stability of the tool changing and guaranteeing machining accuracy.

[0018] This invention incorporates a buffer protection component. When the turret rotates to its final position, the rotating frame comes into contact with the turret. At this moment, a damping friction plate can be used to increase the frictional resistance between the rotating frame and the turret, thereby suppressing minor turret wobbling. Simultaneously, a buffer spring and an elastic airbag can be used to provide secondary buffering for the rotating frame and the turret, thus providing sufficient buffer protection for the turret and preventing wear caused by impact or minor wobbling during tool changing. This helps maintain the turret's performance. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the turret base structure in this utility model;

[0022] Figure 3 This is a schematic diagram of the turret structure in this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the buffer protection component in this utility model;

[0024] Figure 5 This is a schematic diagram of the rotating frame structure in this utility model;

[0025] Reference numerals in the attached diagram: 1. Turret base; 2. Rotary shaft; 3. Turret; 4. Electric actuator; 5. Support plate; 6. Base frame; 7. Plug-in shaft; 8. Slot; 9. PLC controller; 10. Rotating frame; 11. Adapter plate; 12. Arc-shaped guide rod; 13. Abutment plate; 14. Translation ring; 15. Buffer spring; 16. Silicone rubber corrugated ring; 17. Elastic airbag; 18. Damping friction plate; 19. Pressure plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] The present invention will be further described below with reference to the embodiments.

[0028] Example: Refer to Figures 1 to 5A fully protective turret mechanism for a CNC lathe with a bar-type tool includes: a turret base 1 and a multi-point locking assembly. A rotating shaft 2 is rotatably connected to the turret base 1, and a turret 3 is fixedly connected to the end of the rotating shaft 2. A CNC power motor is built into the turret base 1, which can drive the rotating shaft 2 to rotate. The multi-point locking assembly includes two electric push rods 4 fixedly installed on the outer wall of the turret base 1. A PLC controller 9 is fixedly installed on the outer wall of the turret base 1. The PLC controller 9, the turret base 1, and the two electric push rods 4 are electrically connected to an external power supply. A support plate 5 is fixedly connected to the telescopic ends of the two electric push rods 4. A bottom frame 6 is fixedly connected to the outer wall of the support plate 5. Several plug-in shafts 7 are fixedly connected to the outer peripheral wall of the bottom frame 6. Several slots 8 are opened on the outer wall of the turret 3, and the plug-in shafts 7 match the slots 8.

[0029] During the tool changing process of the turret 3, after the turret 3 rotates to the correct position, the PLC controller 9 controls the extension end of the electric push rod 4 to extend and move, so as to drive the base frame 6 and several plug-in shafts 7 to insert into the corresponding slots 8 on the turret 3. The turret 3 is mechanically locked and fixed at multiple points through the plug-in cooperation of several plug-in shafts 7 and several slots 8, so as to ensure the tool changing stability of the turret 3 and help to ensure machining accuracy.

[0030] Several buffer protection components are slidably connected to the inner side of the bottom frame 6. These components include a rotating frame 10 slidably connected to the inner side of the bottom frame 6. Damping friction plates 18 are fixedly connected to the outer wall of the rotating frame 10 and the outer wall of the turret 3. The bottom frame 6 has a concave cross-section, while the rotating frame 10 has an L-shaped cross-section. The outer diameter of the rotating frame 10 is smaller than the inner diameter of the bottom frame 6. A silicone rubber corrugated ring 16 is fixedly connected between the bottom frame 6 and the rotating frame 10. A damping friction plate 18 is fixedly connected to the inner wall of the rotating frame 10. The adapter plate 11 has an arc-shaped guide rod 12 fixedly connected to it. The inner wall of the bottom frame 6 has an abutment plate 13 fixedly connected to it. The abutment plate 13 has a sliding hole. A translation ring 14 is slidably connected to the sliding hole. The translation ring 14 and the arc-shaped guide rod 12 are slidably engaged. A buffer spring 15 is fixedly connected between the translation ring 14 and the adapter plate 11. An elastic airbag 17 is fixedly connected to the inner wall of the bottom frame 6. A pressure plate 19 is fixedly connected to the end of the elastic airbag 17. The pressure plate 19 and the arc-shaped guide rod 12 are pressed together.

[0031] Specifically, a silicone rubber corrugated ring 16 is fixedly connected between the bottom frame 6 and the rotating frame 10 to support the telescopic movement between the bottom frame 6 and the rotating frame 10, while preventing external liquids such as cutting fluid from entering the bottom frame 6 and ensuring the normal operation of the buffer protection component.

[0032] Specifically, during the process of the rotating frame 10 contacting the turret 3, the rotating frame 10 will slide relative to the bottom frame 6 and retract into the bottom frame 6. Since the translation ring 14 can slide relative to the sliding hole, the sliding cooperation of the translation ring 14 relative to the abutment plate 13 can be used to realize the retraction movement of the rotating frame 10.

[0033] Specifically, after the arc-shaped guide rod 12 squeezes the pressure plate 19 and the elastic air bag 17, the elastic air bag 17 begins to compress and accumulate elastic force. After the turret 3 completes the tool change, the elastic air bag 17 uses its own elastic force to push the pressure plate 19 and the arc-shaped guide rod 12, so that the rotating frame 10 can automatically reset, so as to buffer and protect the turret 3 during the next tool change.

[0034] At the moment the turret 3 rotates to its final position, the rotating frame 10 will come into contact with the turret 3. At this time, the damping friction plate 18 can be used to increase the frictional resistance between the rotating frame 10 and the turret 3 to suppress the slight shaking of the turret 3. At the same time, the rotating frame 10 will rotate slightly relative to the bottom frame 6 under the action of the turret 3, and the adapter plate 11 will rotate synchronously. This will cause the arc-shaped guide rod 12 to push the translation ring 14 to slide and compress the buffer spring 15. The buffer spring 15 can convert the impact kinetic energy into the elastic potential energy of the spring to achieve the first-level buffer. At the same time, the arc-shaped guide rod will squeeze the elastic air bag 17. The elastic air bag 17 deforms to absorb the remaining vibration energy, completing the second-level buffer. Thus, the turret 3 can be fully buffered and protected, avoiding wear caused by impact or slight shaking during tool changing, which is conducive to maintaining the performance of the turret 3.

[0035] The working principle of this utility model is as follows:

[0036] When in use, when the CNC system of the CNC lathe issues a tool change command, the turret base 1 and the PLC controller 9 receive the command synchronously. The PLC controller 9 controls the telescopic ends of the two electric push rods 4 to retract and move, and drives the support plate 5 and the base frame 6 to move closer to the turret base 1, so that several plug-in shafts 7 disengage from several slots 8 of the turret 3. Then, the turret base 1 drives the rotating shaft 2 to rotate, so that the turret 3 rotates at a certain angle, and the turret 3 continues to rotate to the target position. After the turret 3 rotates to the position, the PLC controller 9 controls the telescopic ends of the electric push rods 4 to extend and move, so that the base frame 6 and several plug-in shafts 7 are inserted into the corresponding slots 8 on the turret 3. The turret 3 is mechanically locked and fixed at multiple points through the plug-in cooperation of several plug-in shafts 7 and several slots 8, so as to ensure the tool change stability of the turret 3 and help to ensure machining accuracy.

[0037] At the moment the turret 3 rotates to its final position, the rotating frame 10 will come into contact with the turret 3. At this time, the damping friction plate 18 can be used to increase the frictional resistance between the rotating frame 10 and the turret 3 to suppress the slight shaking of the turret 3. At the same time, the rotating frame 10 will rotate slightly relative to the bottom frame 6 under the action of the turret 3, and the adapter plate 11 will rotate synchronously. This will cause the arc-shaped guide rod 12 to push the translation ring 14 to slide and compress the buffer spring 15. The buffer spring 15 can convert the impact kinetic energy into the elastic potential energy of the spring to achieve the first-level buffer. At the same time, the arc-shaped guide rod will squeeze the elastic air bag 17. The elastic air bag 17 deforms to absorb the remaining vibration energy, completing the second-level buffer. Thus, the turret 3 can be fully buffered and protected, avoiding wear caused by impact or slight shaking during tool changing, which is conducive to maintaining the performance of the turret 3.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fully protective turret mechanism for a bar-type CNC lathe, characterized in that, include: A turret base (1) is rotatably connected to a rotating shaft (2), and a turret (3) is fixedly connected to the end of the rotating shaft (2). A multi-point locking assembly includes two electric push rods (4) fixedly installed on the outer wall of the turret base (1). The telescopic ends of the two electric push rods (4) are fixedly connected to a support plate (5). The outer wall of the support plate (5) is fixedly connected to a bottom frame (6). The outer peripheral wall of the bottom frame (6) is fixedly connected to several plug-in shafts (7). The outer wall of the turret (3) is provided with several slots (8). The plug-in shafts (7) match the slots (8). Several buffer and protective components are slidably connected to the inner side of the bottom frame (6).

2. The fully protective turret mechanism for a bar-type CNC lathe according to claim 1, characterized in that, A PLC controller (9) is fixedly installed on the outer wall of the turret base (1). The PLC controller (9), the turret base (1), and the two electric push rods (4) are electrically connected to an external power supply.

3. The fully protected turret mechanism for a bar-type CNC lathe according to claim 1, characterized in that, The buffer protection assembly includes a rotating frame (10) slidably connected to the inner side of the bottom frame (6). A transition plate (11) is fixedly connected to the inner wall of the rotating frame (10). An arc-shaped guide rod (12) is fixedly connected to the transition plate (11). An abutment plate (13) is fixedly connected to the inner wall of the bottom frame (6). A sliding hole is provided on the abutment plate (13). A translation ring (14) is slidably connected to the sliding hole. The translation ring (14) is slidably engaged with the arc-shaped guide rod (12). A buffer spring (15) is fixedly connected between the translation ring (14) and the transition plate (11).

4. A fully protective turret mechanism for a bar-type CNC lathe according to claim 3, characterized in that, The bottom frame (6) has a concave cross-section, and the rotating frame (10) has an L-shaped cross-section. The outer diameter of the rotating frame (10) is smaller than the inner diameter of the bottom frame (6), and a silicone rubber corrugated ring (16) is fixedly connected between the bottom frame (6) and the rotating frame (10).

5. A fully protective turret mechanism for a bar-type CNC lathe according to claim 3, characterized in that, An elastic airbag (17) is fixedly connected to the inner wall of the bottom frame (6), and a pressure plate (19) is fixedly connected to the end of the elastic airbag (17). The pressure plate (19) is pressed and engaged with the arc-shaped guide rod (12).

6. A fully protective turret mechanism for a bar-type CNC lathe according to claim 3, characterized in that, Damping friction plates (18) are fixedly connected to the outer wall of the rotating frame (10) and the outer wall of the turret (3).

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