A high efficiency energy recovery device

Abstract

The application provides a high-efficiency energy recovery device and relates to the field of lathes. The high-efficiency energy recovery device comprises a mounting frame, a main shaft, a boring cutter and a rotating head, the main shaft, the rotating head and a tool shank are located at the same axis, the main shaft penetrates the upper end of the mounting frame and is rotationally connected with the mounting frame, two screws are connected between the bottom end of the tool shank and the upper end of the boring cutter, a positioning groove is formed in the upper surface of the rotating head, and a positioning block is installed at the bottom end of the main shaft. The high-efficiency energy recovery device can recover the energy generated in the process of boring and lathing spindle deceleration and stop, convert the energy into mechanical energy and spray the gas through the gas jet pipe to clean the impurities such as iron filings, thereby saving resources. When the material of the machined workpiece is uneven, the rotating head can stably run, and the vibration and noise generated in the boring process can be greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of lathes, specifically to a high-efficiency energy recovery device. Background Technology

[0002] A lathe is a machine tool that primarily uses a cutting tool to machine rotating workpieces. On a lathe, drills, reamers, taps, dies, and knurling tools can also be used for corresponding machining operations. Lathes are mainly used to machine shafts, discs, sleeves, and other workpieces with rotating surfaces. Lathes can also be equipped with boring devices for boring operations, used to machine internal holes of various diameters, shapes, and precisions, such as worm gears and gear internal holes.

[0003] The spindle of a rotary boring machine is the core of the entire machine tool. It is responsible for providing machining power and speed. During operation, the spindle consumes a lot of energy, and the existing boring device cannot recover the consumed energy, resulting in a significant waste of resources. When the boring tool of the existing boring device is used to process some stainless steel workpieces by rotating the boring tool, the cutting force will change periodically due to the high hardness and uneven density of stainless steel, resulting in forced vibration. This leads to vibration and noise during the boring process, which poses certain hazards to the equipment and workers. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a high-efficiency energy recovery device that solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency energy recovery device, comprising a mounting frame, a tool holder, a spindle, a boring tool, and a rotating head. The spindle, rotating head, and tool holder are located on the same axis. The spindle passes through the upper end of the mounting frame and is rotatably connected to the mounting frame. The bottom end of the tool holder is connected to the upper end of the boring tool by two screws. A positioning groove is provided on the upper surface of the rotating head. A positioning block is installed on the bottom end of the spindle, and the positioning block is located inside the positioning groove. A turntable is fixedly connected to the bottom end of the spindle, and the turntable is fixedly connected to the rotating head. Multiple circumferentially arranged limiting posts are installed on the bottom surface of the turntable. Multiple equally spaced insertion holes are provided on the upper surface of the rotating head, and each limiting post is inserted into its adjacent insertion hole. A locking block is fixedly connected to the bottom surface of the rotating head, and the locking block is engaged with the upper end of the tool holder. The tool holder can move back and forth linearly along the bottom end of the locking block.

[0006] Preferably, both the positioning groove and the positioning block are conical in shape, and the positioning groove is in close contact with the positioning block.

[0007] Preferably, the outer surface of the spindle has six circumferentially arranged grooves, each groove having a slider slidably connected inside, and each slider being fixedly connected to the connecting plate.

[0008] Preferably, the mounting bracket is installed inside an external lathe, and the upper end of the spindle is connected to an external power source.

[0009] Preferably, a movable block is fixedly connected to the inner bottom wall of the tool holder, the movable block is slidably connected to the locking block, and a locking screw is threaded inside the movable block. Both ends of the locking screw pass through the locking block and are rotatably connected to the locking block.

[0010] Preferably, the outer surface of the main shaft has two symmetrical slots, and the interior of each slot is hinged with a shaped plate. The upper end of each shaped plate is fixedly installed with a clamping plate, and a grinding wheel is placed between the two clamping plates. The grinding wheel is in close contact with the two clamping plates, and the main shaft passes through the grinding wheel and is rotatably connected to the grinding wheel.

[0011] Preferably, both clamping plates are arc-shaped and in close contact with the bottom end of the grinding wheel, and there is friction between the two clamping plates and the grinding wheel.

[0012] Preferably, an energy storage mechanism is installed on the upper part of the mounting frame. The energy storage mechanism consists of a first energy storage box, a second energy storage box, a connecting pipe, a threaded rod, a first piston, and a second piston. The two ends of the connecting pipe are fixedly connected to the first energy storage box and the second energy storage box, respectively. The first energy storage box and the second energy storage box are connected to each other through the connecting pipe. The upper end of the threaded rod is rotatably connected to the mounting frame. A sealing pipe thread is installed inside the first piston. The sealing pipe thread is threadedly connected to the threaded rod. When the threaded rod rotates, it can make the first piston reciprocate linearly. The second piston is slidably connected to the second energy storage box. When the second piston moves upward, it begins to store energy. An air jet pipe is fixedly connected to the outer surface of the connecting pipe. A valve is fixedly connected to the bottom end of the air jet pipe. Rotating wheels are fixedly connected to the upper surface of the grinding wheel and the outer surface of the threaded rod. The two rotating wheels are connected to each other through belt drive. The main shaft is rotatably connected to the rotating wheel located at the front.

[0013] Preferably, the outer surface of the main shaft is fitted with an extrusion plate and a connecting plate. Springs are installed between the two irregular plates and the extrusion plate. Both springs are in a static state. The extrusion plate is located above the connecting plate. Six circumferentially arranged push plates are hinged between the connecting plate and the rotating head. The cross-sections at both ends of each push plate are circular. The bottom surface of the extrusion plate is fitted with friction plates of the six circumferentially arranged push plates. Each friction plate is arc-shaped. The six friction plates are in close contact with the upper ends of the six push plates respectively.

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

[0015] 1. This high-efficiency energy recovery device can recover the energy generated during the deceleration and stopping of the spindle of a boring lathe, convert it into mechanical energy and store it. It also generates resistance to the spindle rotation, reducing the spindle deceleration and stopping time. The stored mechanical energy can be ejected through a jet pipe to clean away impurities such as iron filings, thus saving resources. When machining stainless steel workpieces, the vibration force of the boring tool is transmitted to the rotating head through the tool holder. Under the positioning action of the positioning block, the rotating head can run smoothly. The combined action of multiple friction plates and multiple push plates provides a damping effect. Furthermore, during operation, the extrusion plate generates a downward thrust on the rotating head through the push plates, greatly improving the stability of the rotating head and significantly reducing vibration and noise generated during boring, thereby solving the problems mentioned in the background technology.

[0016] 2. This high-efficiency energy recovery device allows the boring bar to rotate and process the workpiece when the spindle is working. By rotating the locking screw, the position of the moving block and the tool holder can be adjusted, thereby adjusting the position of the boring bar to facilitate the processing of holes of different sizes according to requirements.

[0017] 3. This high-efficiency energy recovery device features two shaped plates and two clamping plates that rotate with the main shaft. During rotation, centrifugal force is generated, throwing the two clamping plates outward and separating them from the grinding wheel, thus reducing the energy consumed by the main shaft. Furthermore, the two shaped plates exert downward thrust on the extrusion plate through two springs, causing multiple push plates to press against the rotating head, increasing its stability. The faster the main shaft rotates, the greater the centrifugal force generated during rotation, and the greater the force exerted by the two shaped plates and springs on the extrusion plate, enabling the rotating head to operate more stably and significantly reducing the vibration of the boring tool. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a sectional view of the right side of the overall structure of the present invention;

[0020] Figure 3 This is a sectional view of a portion of the rear view of the present invention;

[0021] Figure 4 This is an exploded view of part of the structure of the present invention.

[0022] The components are as follows: 1. Mounting bracket; 2. Spindle; 3. Boring tool; 4. Rotary head; 5. Air jet pipe; 6. Tool holder; 7. Positioning groove; 8. Positioning block; 9. Turntable; 10. Limiting post; 11. Clamping block; 12. Moving block; 13. Locking screw; 14. Shaped plate; 15. Clamping plate; 16. Grinding wheel; 17. Rotating wheel; 18. Energy storage mechanism; 181. First energy storage box; 182. Second energy storage box; 183. Connecting pipe; 184. Threaded rod; 186. First piston; 187. Second piston; 19. Extrusion plate; 20. Connecting plate; 21. Push plate; 22. Friction plate. Detailed Implementation

[0023] like Figures 1-4 As shown, a high-efficiency energy recovery device includes a mounting frame 1, a spindle 2, a boring tool 3, and a rotating head 4. The tool holder 6, spindle 2, rotating head 4, and tool holder 6 are located on the same axis. The spindle 2 passes through the upper end of the mounting frame 1 and is rotatably connected to it. The mounting frame 1 is installed inside an external lathe. The upper end of the spindle 2 is connected to an external power source. Two symmetrical slots are formed on the outer surface of the spindle 2. A shaped plate 14 is hinged inside each slot. The upper ends of both shaped plates 14 are... A clamping plate 15 is fixedly installed, and a grinding wheel 16 is placed between the two clamping plates 15. The grinding wheel 16 is in close contact with the two clamping plates 15. The main shaft 2 passes through the grinding wheel 16 and is rotatably connected to the grinding wheel 16. Both clamping plates 15 are arc-shaped and are in close contact with the bottom end of the grinding wheel 16. There is friction between the two clamping plates 15 and the grinding wheel 16, which increases the contact area between the clamping plates 15 and the grinding wheel 16, thereby increasing the friction. When the clamping plates 15 rotate, the grinding wheel 16 can be rotated by its friction.

[0024] The bottom end of the tool holder 6 is connected to the top end of the boring bar 3 by two screws. The top end of the boring bar 3 is located inside the bottom end of the tool holder 6, and the tool holder 6 and the boring bar 3 are in close contact. This not only improves the stability between the tool holder 6 and the boring bar 3, but also ensures that the boring bar 3 can be disassembled. The upper surface of the rotating head 4 is provided with a positioning groove 7. The bottom end of the spindle 2 is equipped with a positioning block 8, which is located inside the positioning groove 7. Both the positioning groove 7 and the positioning block 8 are conical in shape, and the positioning groove 7 is in close contact with the positioning block 8. The outer surface of the spindle 2 is fitted with a pressing plate 19 and a connecting plate 20. Springs are installed between the two irregular plates 14 and the pressing plate. Both springs are in a static state. The pressing plate 19 is located above the connecting plate 20. Six circumferentially arranged push plates 21 are hinged between the connecting plate 20 and the rotating head 4. The cross-sections at both ends of each push plate 21 are circular. The bottom surface of the pressure plate 19 is equipped with six friction plates 22 arranged in a circular pattern on the push plates 21. Each friction plate 22 is arc-shaped. The six friction plates 22 are in close contact with the upper ends of the six push plates 21 respectively. There is friction between the friction plates 22 and the push plates 21, which can play a damping role and greatly reduce the vibration generated during the operation. The outer surface of the spindle 2 is provided with six grooves arranged in a circular pattern. Each groove is slidably connected to a slider. Each slider is fixedly connected to the connecting plate 20. The bottom end of the spindle 2 is fixedly connected to the turntable 9. The turntable 9 is fixedly connected to the rotating head 4 and is in close contact with the rotating head 4. The bottom surface of the turntable 9 is equipped with multiple limit posts 10 arranged in a circular pattern. The upper surface of the rotating head 4 is provided with multiple equally spaced insertion holes. Each limit post 10 is inserted into the insertion hole closest to it.

[0025] A locking block 11 is fixedly connected to the bottom surface of the rotating head 4. The locking block 11 engages with the upper end of the tool holder 6, allowing the tool holder 6 to reciprocate linearly along the bottom end of the locking block 11. A moving block 12 is fixedly connected to the inner bottom wall of the tool holder 6, and the moving block 12 is slidably connected to the locking block 11. A locking screw 13 is threadedly connected to the inside of the moving block 12. Both ends of the locking screw 13 pass through the locking block 11 and are rotatably connected to it. Rotating the locking screw 13 can adjust the position of the moving block 12, thereby adjusting the position of the boring tool 3. An energy storage mechanism 18 is installed on the upper part of the mounting bracket 1. The energy storage mechanism 18 consists of a first energy storage box 181, a second energy storage box 182, a connecting pipe 183, a threaded rod 184, a first piston 186, and a second piston 187. The two ends of the connecting pipe 183 are respectively connected to the first energy storage box 181 and the second energy storage box 187. Energy storage box 182 is fixedly connected. The first energy storage box 181 and the second energy storage box 182 are connected through a connecting pipe 183. The upper end of the threaded rod 184 is rotatably connected to the mounting bracket 1. The first piston 186 has a sealing pipe thread installed inside. The sealing pipe thread is threadedly connected to the threaded rod 184. When the threaded rod 184 rotates, the first piston 186 can move back and forth linearly. The second piston 187 is slidably connected to the second energy storage box 182. When the second piston 187 moves upward, it begins to store energy. The outer surface of the connecting pipe 183 is fixedly connected to a jet pipe 5. The bottom end of the jet pipe 5 is fixedly connected to a valve. The upper surface of the grinding wheel 16 and the outer surface of the threaded rod 184 are both fixedly connected to rotating wheels 17. The two rotating wheels 17 are connected through belt drive. The main shaft 2 is rotatably connected to the rotating wheel 17 located at the front.

[0026] In use, first install the mounting bracket 1 into the lathe, then place the stainless steel workpiece to be machined on the adjustable machining stand for fixation, and raise the workpiece to the boring bar 3 using the adjustable machining stand inside the lathe. Adjust the position of the moving block 12 by rotating the locking screw 13. The moving block 12 drives the tool holder 6 to move, and the tool holder 6 drives the boring bar 3 to move. The position of the boring bar 3 can then be adjusted as needed. Then connect the upper end of the spindle 2 to an external power source and drive the spindle 2 to rotate. When the spindle 2 rotates, it drives the turntable 9 to rotate. The turntable 9 drives the rotating head 4 to rotate through multiple limit pins 10. The rotating head 4 drives the chuck 11 to rotate, which in turn drives the tool holder 6 and the boring bar 3 to rotate. The lifting and lowering of the machining stand allows the boring bar 3 to machine the workpiece. During the machining process, the vibration force generated by the boring bar 3 will be transmitted sequentially. The rotation is transmitted to the tool holder 6, the locking block 11, and then to the rotating head 4. The positioning block 8 and the positioning groove 7 are both conical and in close contact, which can reduce the vibration force generated by the rotating head 4. When the spindle 2 rotates, it will generate centrifugal force and cause the two clamping plates 15 to be thrown outward. The two clamping plates 15 drive the two irregular plates 14 to unfold outward. At this time, the two irregular plates 14 exert a squeezing force on the extrusion plate 19 through the two springs. The extrusion plate 19 drives multiple friction plates 22 to squeeze multiple push plates 21, thereby causing multiple push plates to squeeze the rotating head 4, which improves the stability of the rotating head 4 and the boring tool 3 when rotating. The faster the spindle 2 rotates, the greater the centrifugal force generated during the rotation process, and the greater the force applied by the two irregular plates 14 and the springs to the extrusion plate 19, so that the rotating head 4 can run more stably, thereby greatly reducing the vibration of the boring tool 3.

[0027] Immediately after processing, the spindle 2 begins to decelerate. At this time, the centrifugal force generated during the rotation of the spindle 2 decreases. Under the elastic deformation of the two springs, the two irregular plates 14 are pushed to reset, thereby causing the two clamping plates 15 to reset and clamp the grinding wheel 16. The two clamping plates 15 begin to drive the grinding wheel 16 to rotate. Under the action of belt drive between the two rotating wheels 17, the grinding wheel 16 can drive the two rotating wheels 17 to rotate. The rotating wheel 17 at the rear drives the threaded rod 184 to rotate. The threaded rod 184 drives the first piston 186 to descend. When the first piston 186 descends, it increases the air pressure in the first energy storage box 181. The air pressure is transmitted to the connecting pipe 183, the jet pipe 5, and the second energy storage box 182. Under the action of air pressure, the second piston 187 rises and begins to store energy, which can both buffer and increase the stored energy. By opening the valve, the gas can be discharged and the impurities such as iron filings generated during processing can be cleaned, saving resources.

[0028] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency energy recovery device, comprising a mounting bracket (1), a tool holder (6), a spindle (2), a boring tool (3), and a rotating head (4), characterized in that: The spindle (2), rotating head (4), and tool holder (6) are located on the same axis. The spindle (2) passes through the upper end of the mounting bracket (1) and is rotatably connected to the mounting bracket (1). The bottom end of the tool holder (6) is connected to the upper end of the boring tool (3) by two screws. The upper surface of the rotating head (4) is provided with a positioning groove (7). The bottom end of the spindle (2) is equipped with a positioning block (8), which is located inside the positioning groove (7). The bottom end of the spindle (2) is fixedly connected to a turntable (9), which is fixedly connected to the rotating head (4). The bottom surface of the turntable (9) is equipped with multiple circumferentially arranged... The upper surface of the rotating head (4) is provided with multiple equally spaced insertion holes, and each limiting post (10) is inserted into the insertion hole closest to it. A locking block (11) is fixedly connected to the bottom surface of the rotating head (4). The locking block (11) is engaged with the upper end of the tool holder (6), and the tool holder (6) can move back and forth in a straight line along the bottom end of the locking block (11). The outer surface of the main shaft (2) is provided with six circumferentially arranged sliding grooves. Each sliding groove is slidably connected to a slider, and each slider is fixedly connected to the connecting plate (20). The outer surface of the main shaft (2) is provided with two... The slots are symmetrical, and each slot has a shaped plate (14) hinged inside. A clamping plate (15) is fixedly installed at the upper end of each of the two shaped plates (14). A grinding wheel (16) is placed between the two clamping plates (15), and the grinding wheel (16) is in close contact with the two clamping plates (15). The main shaft (2) passes through the grinding wheel (16) and is rotatably connected to it. Both clamping plates (15) are arc-shaped and in close contact with the bottom end of the grinding wheel (16). There is friction between the two clamping plates (15) and the grinding wheel (16). A pressing disc (19) is fitted onto the outer surface of the main shaft (2). The two irregular plates (14) and the extrusion plate (19) are each equipped with a spring. Both springs are in a static state. The extrusion plate (19) is located above the connection plate (20). The connection plate (20) and the rotating head (4) are hinged together by six circumferentially arranged push plates (21). The cross-sections at both ends of each push plate (21) are circular. The bottom surface of the extrusion plate (19) is equipped with six circumferentially arranged friction plates (22) of the push plates (21). Each friction plate (22) is arc-shaped. The six friction plates (22) are in close contact with the upper ends of the six push plates (21).

2. The high-efficiency energy recovery device according to claim 1, characterized in that: Both the positioning groove (7) and the positioning block (8) are conical in shape, and the positioning groove (7) and the positioning block (8) are in close contact.

3. The high-efficiency energy recovery device according to claim 1, characterized in that: The mounting bracket (1) is installed inside the external lathe, and the upper end of the spindle (2) is connected to the external power source.

4. The high-efficiency energy recovery device according to claim 1, characterized in that: The inner bottom wall of the handle (6) is fixedly connected to a moving block (12), which is slidably connected to a locking block (11). The moving block (12) is internally threaded with a locking screw (13), both ends of which pass through the locking block (11) and are rotatably connected to the locking block (11).

5. The high-efficiency energy recovery device according to claim 1, characterized in that: An energy storage mechanism (18) is installed on the upper part of the mounting frame (1). The energy storage mechanism (18) consists of a first energy storage tank (181), a second energy storage tank (182), a connecting pipe (183), a threaded rod (184), a first piston (186), and a second piston (187). The two ends of the connecting pipe (183) are fixedly connected to the first energy storage tank (181) and the second energy storage tank (182) respectively. The first energy storage tank (181) and the second energy storage tank (182) are connected through the connecting pipe (183). The upper end of the threaded rod (184) is rotatably connected to the mounting frame (1). The first piston (186) has a sealing pipe thread installed inside. The sealing pipe thread is threaded to the threaded rod (184). When the threaded rod (184) rotates, the first piston (186) can move back and forth linearly. The second piston (187) is slidably connected to the second energy storage box (182). When the second piston (187) moves upward, it starts to store energy. The outer surface of the connecting pipe (183) is fixedly connected to the jet pipe (5). The bottom end of the jet pipe (5) is fixedly connected to the valve. The upper surface of the grinding wheel (16) and the outer surface of the threaded rod (184) are both fixedly connected to the rotating wheel (17). The two rotating wheels (17) are connected by belt drive. The main shaft (2) is rotatably connected to the rotating wheel (17) located at the front.

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