Efficient tool changing structure of rotary disc type machine tool magazine

Abstract

The invention provides an efficient tool changing structure of a rotary disc type machine tool magazine, and belongs to the technical field of tool changing of machining equipment. By arranging the servo motor, the first lead screw, the lead screw nut, the stabilizing frame, a pushing rod, a travel switch, a micro electric push rod, a cutter clamping piece, a connecting plate, a limiting frame, a cutter disc, a reset spring, a cutter clamping piece, a cutter holder, a limiting block, a driving motor, a torsional spring, a first gear and a second gear, a cutter can be clamped and limited, and the cutter can be replaced; and under the arrangement of a chain wheel, a transmission chain, a second lead screw, an extrusion block, a blocking block, an air inlet pipe, an air outlet pipe, a cleaning ring, a chip conveying pipe and a chip removal pipe, the surface of the tool is cleaned synchronously when the tool is replaced, chips are prevented from being attached to the surface of the tool, the generated chips can be guided away during machining, and the machining efficiency is improved. The chippings are prevented from influencing machining of workpieces or being greatly attached to the tool, the overall structure is compact, and the tool changing efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tool changing for machining equipment, and particularly to an efficient tool changing structure for a turntable-type machine tool tool magazine. Background Art

[0002] Machining equipment is used to process parts. Through processes such as cutting, grinding, and drilling, raw materials are processed into parts with the required shapes and sizes. During the process of processing and preparing parts, different types of machining tools are used, and it is necessary to frequently replace the machining tools. In order to improve the efficiency of machining, an efficient tool changing structure for a turntable-type machine tool tool magazine is required.

[0003] When the existing machining equipment changes tools, most of them use manual methods to replace the machining tools. However, the manual method of replacing machining tools is relatively troublesome, with poor efficiency, and there are also safety hazards. For some mechanical tool changing structures, when changing tools, multiple sets of driving devices need to be controlled, resulting in a complex equipment structure, high cost, and poor linkage. At the same time, the tools are fixed and limited by means such as buckles, with poor stability. Moreover, during the machining process of the machining tools, debris will adhere to their surfaces. If not cleaned in time during tool changing, it will cause jamming or damage to the tool changing structure. Summary of the Invention

[0004] In order to solve the above problems, the present invention proposes an efficient tool changing structure for a turntable-type machine tool tool magazine to more precisely solve the problems that when the machining equipment changes tools, the tool changing is relatively troublesome, with poor efficiency, there are safety hazards, and the tools cannot be cleaned in a linked manner.

[0005] The present invention is achieved through the following technical solutions: The present invention proposes an efficient tool changing structure for a turntable-type machine tool tool magazine, including a protective shell. A transparent window is embedded and installed on the side wall of the protective shell. A box door is rotatably installed on the front of the protective shell through a rotating shaft. Multiple sets of heat dissipation holes are opened on the surface of the box door. A tool changing component is arranged inside the protective shell, and the tool changing component is used for conveniently replacing the machining tools. A cleaning component is arranged inside the protective shell, and the cleaning component is used for cleaning the machining tools; The tool changing component includes a frame, a fixed frame, two connecting plates, a limiting frame, two reset springs, and a tool disc. The frame is installed inside the protective shell through bolts. The side wall of the frame is provided with an opening. The fixed frame is installed on the top of the frame through bolts. The two connecting plates are symmetrically installed on the side wall of the fixed frame. The limiting frame is rotatably installed on the side wall of the connecting plate. The two reset springs are symmetrically installed on the side walls of the fixed frame and the limiting frame. The tool disc is rotatably installed on the side wall of the limiting frame.

[0006] Furthermore, the frame and the fixed frame are hollow, the two connecting plates are inclined, the cross-section of the limiting frame is in a U-shaped structure, the reset spring is inclined, the cutter head covers the outside of the limiting frame, the cutter head is in a bowl-shaped structure, and the cutter head is inclined in the initial state.

[0007] Furthermore, a first gear is installed on the inner wall of the cutter head, a plurality of knife clamping members are evenly and rotatably installed on the inner wall of the cutter head, the plurality of knife clamping members are symmetrically arranged in pairs, damping wheels are provided at the ends of the plurality of knife clamping members, a torsion spring is sleeved outside the knife clamping members, and a plurality of notches are evenly distributed on the surface of the cutter head, and the knife clamping members are located on both sides of the notches.

[0008] Furthermore, the tool changing assembly further includes a servo motor, a first lead screw, a lead screw nut, a limiting block, a stabilizing frame, a mounting frame and a driving motor. The servo motor is installed on the inner wall of the fixed frame by bolts, the first lead screw is installed at the output end of the servo motor, the lead screw nut is sleeved outside the first lead screw, the limiting block is rotatably sleeved outside the first lead screw, the stabilizing frame is installed on the side wall of the lead screw nut by bolts, the mounting frame is installed on the top of the stabilizing frame by bolts, and the driving motor is installed on the inner wall of the mounting frame by bolts.

[0009] Furthermore, the first lead screw is rotatably arranged with the frame, the lead screw nut is slidably arranged with the inner wall of the frame, the cross-section of the mounting frame is in an L-shaped structure, a transmission rod is installed at the output end of the driving motor through a coupling, a second gear is sleeved outside the transmission rod, the second gear is located above the stabilizing frame, the second gear is meshed and transmitted with the first gear in the initial state, the transmission rod is rotatably arranged with the stabilizing frame, a tool holder is installed at the bottom end of the transmission rod, and two pushing rods are symmetrically installed on the top of the stabilizing frame, and the pushing rods correspond to the limiting frame.

[0010] Furthermore, a travel switch is installed on the inner wall of the frame, the travel switch is connected with the micro electric push rod, a cavity is provided in the tool holder, two micro electric push rods are symmetrically installed in the tool holder, and clamping members are installed at the output ends of the two micro electric push rods, and the cross-section of the clamping member is in an arc structure.

[0011] Furthermore, the cleaning assembly includes an air storage tank, a chip suction box, a second lead screw, two sprockets, a transmission chain, a pressing block and a blocking block. The air storage tank is installed on the side wall of the frame by bolts, the chip suction box is installed on the side wall of the frame by bolts, the second lead screw is rotatably installed through the air storage tank and the chip suction box, the two sprockets are respectively sleeved outside the first lead screw and the second lead screw, the transmission chain is sleeved outside the sprockets, the pressing block is sleeved outside the second lead screw through a thread and is located in the air storage tank, and the blocking block is sleeved outside the second lead screw through a thread and is located in the chip suction box.

[0012] Furthermore, the cleaning assembly further includes two air outlet pipes, two air inlet pipes, a chip conveying pipe, a chip discharging pipe, and a cleaning ring. The two air outlet pipes are respectively installed through the top and bottom sides of the air storage tank, the two air inlet pipes are respectively installed through the top and bottom sides of the air storage tank, the chip conveying pipe is installed through the side wall of the chip suction box, the chip discharging pipe is installed through the side wall of the chip suction box, and the cleaning ring is installed at the bottom of the tool holder.

[0013] Furthermore, the chip suction box is located below the air storage tank. The extrusion block is slidably arranged on the inner wall of the air storage tank, a rubber sealing sleeve is sleeved outside the extrusion block, and the blocking block is slidably arranged on the inner wall of the chip suction box.

[0014] Furthermore, the air outlet pipes and the air inlet pipes are symmetrically arranged. A one-way valve is arranged in the air inlet pipe. The air outlet pipe and the cleaning ring are connected together by a hose. The chip conveying pipe and the chip discharging pipe are symmetrically arranged. Both the chip conveying pipe and the chip discharging pipe are controlled by a negative pressure pump. The chip conveying pipe is connected to the cleaning ring, and holes are formed at the bottom of the cleaning ring.

[0015] Advantages of the present invention: A high-efficiency tool changing structure for a turntable-type machine tool tool magazine proposed by the present invention, by providing a tool changing assembly, with the settings of a servo motor, a first lead screw, a lead screw nut, a stabilizing frame, a pushing rod, a tool holder, a travel switch, a micro electric push rod, a tool clamping member, a first gear, a second gear, a connecting plate, a limiting frame, a return spring, a tool locking member, a driving motor, a torsion spring, and a tool disc, can control the movement of the tool, can stably clamp the tool, can machine the workpiece, and can also complete the convenient and efficient replacement of the tool. The overall structure is compact, the cost is low, the linkage is strong, and the tool changing efficiency is improved.

[0016] By providing a cleaning assembly, with the settings of a sprocket, a transmission chain, a second lead screw, an extrusion block, a blocking block, an air inlet pipe, an air outlet pipe, a cleaning ring, a chip conveying pipe, and a chip discharging pipe, the surface of the tool can be cleaned synchronously when the tool is replaced, avoiding chips adhering to the surface of the tool. Also, during machining, the generated chips can be removed, preventing the chips from affecting the machining of the workpiece or a large amount of chips adhering to the tool, ensuring the cleanliness of the tool. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a schematic diagram of the tool disc structure of the present invention; Figure 4 It is a schematic diagram of a partial structure of the tool disc of the present invention; Figure 5Partial structural schematic diagram of the tool change component of the present invention; Figure 6 Structural schematic diagram of the lead screw nut and the limit block of the present invention; Figure 7 Internal structural schematic diagram of the air storage tank and the chip suction box of the present invention; Figure 8 Cross-sectional structural schematic diagram of the tool holder of the present invention.

[0018] The reference numerals are as follows: In the figure: 1, protective shell; 2, transparent window; 3, box door; 4, heat dissipation hole; 5, frame; 6, fixed frame; 7, connecting plate; 8, limit frame; 9, return spring; 10, tool disc; 11, first gear; 12, tool clamping part; 13, torsion spring; 14, notch; 15, servo motor; 16, first lead screw; 17, lead screw nut; 18, limit block; 19, stable frame; 20, mounting bracket; 21, drive motor; 22, second gear; 23, tool holder; 24, travel switch; 25, micro electric push rod; 26, tool clamping piece; 27, air storage tank; 28, chip suction box; 29, second lead screw; 30, sprocket; 31, transmission chain; 32, extrusion block; 33, blockage block; 34, air outlet pipe; 35, air inlet pipe; 36, chip conveying pipe; 37, chip discharging pipe; 38, cleaning ring; 39, pushing rod. Detailed implementation manners

[0019] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0020] Please refer to Figures 1 - 8, the present invention provides an efficient tool changing structure for a turntable-type machine tool tool magazine, which includes a protective shell 1. A transparent window 2 is embedded and installed on the side wall of the protective shell 1. A box door 3 is rotatably installed on the front surface of the protective shell 1 through a rotating shaft. A plurality of heat dissipation holes 4 are opened on the surface of the box door 3. A tool changing assembly is arranged inside the protective shell 1, and the tool changing assembly is used for conveniently replacing the machining tools. A cleaning assembly is arranged inside the protective shell 1, and the cleaning assembly is used for cleaning the machining tools. The tool changing assembly includes a frame 5, a fixed frame 6, two connecting plates 7, a limiting frame 8, two return springs 9, a tool disc 10, a servo motor 15, a first lead screw 16, a lead screw nut 17, a limiting block 18, a stabilizing frame 19, a mounting frame 20 and a driving motor 21. The frame 5 is installed inside the protective shell 1 by bolts. The side wall of the frame 5 is provided with an opening. The fixed frame 6 is installed on the top of the frame 5 by bolts. The two connecting plates 7 are symmetrically installed on the side wall of the fixed frame 6. The limiting frame 8 is rotatably installed on the side wall of the connecting plate 7. The two return springs 9 are symmetrically installed on the side walls of the fixed frame 6 and the limiting frame 8. The tool disc 10 is rotatably installed on the side wall of the limiting frame 8. The frame 5 and the fixed frame 6 are hollow. The two connecting plates 7 are inclined. The cross section of the limiting frame 8 is in a U-shaped structure. The return spring 9 is inclined. The tool disc 10 covers the outside of the limiting frame 8. The tool disc 10 is in a bowl-shaped structure. The tool disc 10 is initially inclined. A first gear 11 is installed on the inner wall of the tool disc 10. A plurality of tool clamping members 12 are evenly distributed and rotatably installed on the inner wall of the tool disc 10. The plurality of tool clamping members 12 are arranged in pairs symmetrically. Damping wheels are provided at the ends of the plurality of tool clamping members 12. A torsion spring 13 is sleeved outside the tool clamping member 12. A plurality of notches 14 are evenly distributed on the surface of the tool disc 10. The tool clamping member 12 is located on both sides of the notch 14. The servo motor 15 is installed on the inner wall of the fixed frame 6 by bolts. The first lead screw 16 is installed at the output end of the servo motor 15. The lead screw nut 17 is sleeved outside the first lead screw 16. The limiting block 18 is rotatably sleeved outside the first lead screw 16. The stabilizing frame 19 is installed on the side wall of the lead screw nut 17 by bolts. The mounting frame 20 is installed on the top of the stabilizing frame 19 by bolts. The driving motor 21 is installed on the inner wall of the mounting frame 20 by bolts. The first lead screw 16 is rotatably arranged with the frame 5. The lead screw nut 17 is slidably arranged with the inner wall of the frame 5. The cross section of the mounting frame 20 is in an L-shaped structure. A transmission rod is installed at the output end of the driving motor 21 through a coupling. A second gear 22 is sleeved outside the transmission rod. The second gear 22 is located above the stabilizing frame 19. Both the second gear 22 and the first gear 11 are wedge-shaped gears. The transmission rod is rotatably arranged with the stabilizing frame 19. A tool holder 23 is installed at the bottom end of the transmission rod. Two pushing rods 39 are symmetrically installed on the top of the stabilizing frame 19. The pushing rods 39 correspond to the limiting frame 8. A travel switch 24 is installed on the inner wall of the frame 5.The travel switch 24 is connected to the micro electric push rod 25. A cavity is formed in the tool holder 23. Two groups of micro electric push rods 25 are symmetrically installed in the tool holder 23. The output ends of the two groups of micro electric push rods 25 are both installed with knife clamping members 26. The cross section of the knife clamping member 26 is in an arc structure. With the setting of the transparent window 2, the machining inside the protective shell 1 can be observed. The servo motor 15 can drive the lead screw nut 17 to move up and down, thereby driving the tool holder 23 and the push rod 39 to move up and down to assist in the subsequent tool change. With the setting of the connecting plate 7, the limit frame 8, and the return spring 9, the movement of the push rod 39 can be limited. At the same time, the movement of the push rod 39 can adjust the inclination state of the tool disc 10. The driving motor 21 drives the second gear 22 to rotate. The rotation of the second gear 22 drives the first gear 11 to rotate. The rotation of the first gear 11 drives the tool disc 10 to rotate. The rotation of the tool disc 10 can replace the tool at its lowest end to assist in completing the tool change. With the setting of the tool jamming member 12 and the torsion spring 13, the tool can be limited. With the setting of the travel switch 24, the micro electric push rod 25 can be controlled. With the setting of the micro electric push rod 25 and the knife clamping member 26, the movement of the micro electric push rod 25 drives the knife clamping member 26 to move, and the tool can be limited or released. The driving motor 21 drives the tool holder 23 to rotate. The rotation of the tool holder 23 drives the tool to rotate, and the machining of the part can be completed. With the setting of the tool disc 10, multiple groups of tools can be stored. With the setting of the limit block 18, the downward movement amount of the lead screw nut 17 can be controlled.,

[0021] The cleaning assembly includes an air storage tank 27, a chip suction box 28, a second lead screw 29, two groups of sprockets 30, a transmission chain 31, a pressing block 32, a blocking block 33, two groups of air outlet pipes 34, two groups of air inlet pipes 35, a chip conveying pipe 36, a chip discharging pipe 37, and a cleaning ring 38. The air storage tank 27 is installed on the side wall of the frame 5 by bolts. The chip suction box 28 is installed on the side wall of the frame 5 by bolts. The second lead screw 29 is rotatably installed through the air storage tank 27 and the chip suction box 28. The two groups of sprockets 30 are respectively sleeved on the outer parts of the first lead screw 16 and the second lead screw 29. The transmission chain 31 is sleeved on the outer part of the sprocket 30. The pressing block 32 is threadedly sleeved on the outer part of the second lead screw 29 and is located inside the air storage tank 27. The blocking block 33 is threadedly sleeved on the outer part of the second lead screw 29 and is located inside the chip suction box 28. The two groups of air outlet pipes 34 are respectively installed through the top and bottom of the side wall of the air storage tank 27. The two groups of air inlet pipes 35 are respectively installed through the top and bottom of the side wall of the air storage tank 27. The chip conveying pipe 36 is installed through the side wall of the chip suction box 28. The chip discharging pipe 37 is installed through the side wall of the chip suction box 28. The cleaning ring 38 is rotatably installed at the bottom of the tool holder 23. The chip suction box 28 is located below the air storage tank 27. The pressing block 32 is slidably arranged with the inner wall of the air storage tank 27. A rubber sealing sleeve is sleeved outside the pressing block 32. The blocking block 33 is slidably arranged with the inner wall of the chip suction box 28. The air outlet pipe 34 and the air inlet pipe 35 are symmetrically arranged. A one-way valve is arranged inside the air inlet pipe 35. The air outlet pipe 34 and the cleaning ring 38 are connected together by a hose. The chip conveying pipe 36 and the chip discharging pipe 37 are symmetrically arranged. Both the chip conveying pipe 36 and the chip discharging pipe 37 are controlled by a negative pressure pump. The chip conveying pipe 36 is connected to the cleaning ring 38. The bottom of the cleaning ring 38 is provided with holes. Driven by the sprocket 30 and the transmission chain 31, the rotation of the first lead screw 16 drives the rotation of the second lead screw 29. The rotation of the second lead screw 29 drives the pressing block 32 and the blocking block 33 to move. With the arrangement of the air inlet pipe 35, the air storage tank 27 can be replenished with gas. The movement of the pressing block 32 can convey the gas in the air storage tank 27 from the air outlet pipe 34 to the outside of the holes at the bottom of the cleaning ring 38, so as to synchronously clean the surface of the tool when replacing the tool. When the blocking block 33 moves downward, the blockage between the chip conveying pipe 36 and the chip discharging pipe 37 can be released. With the cooperation of the negative pressure pump, the chips generated during processing can be drawn away to prevent the chips from affecting the processing of the workpiece or adhering to the tool in large quantities.

[0022] In this embodiment When using the high-efficiency tool changing structure of this turntable-type machine tool tool magazine, in the initial state, the tool disc 10 is in an inclined state as a whole, the tool at the lowest end of the tool disc 10 is in a vertical state, the tool holder 23 is located above the tool, the first gear 11 is engaged with the second gear 22. When machining is required, the servo motor 15 drives the first lead screw 16 to rotate clockwise. The rotation of the first lead screw 16 drives the lead screw nut 17 to move downward. The downward movement of the lead screw nut 17 drives the stabilizing frame 19 to move downward. The downward movement of the stabilizing frame 19 drives the pushing rod 39 to move downward, and the tool holder 23 can be inserted outside the end of the tool. At this time, the lead screw nut 17 passes through the travel switch 24, and the travel switch 24 causes the micro-electric push rod 25 to start. The micro-electric push rod 25 drives the tool clamping member 26 to move. With the symmetric arrangement of the two groups of tool clamping members 26, the tool can be clamped and limited. At the same time, the downward movement of the stabilizing frame 19 causes the first gear 11 to separate from the second gear 22. With the rotational cooperation of the connecting plate 7 and the limiting frame 8, the continuous downward movement of the pushing rod 39 causes the limiting frame 8 to change from an inclined state to a vertical state, and then causes the tool disc 10 to change from an inclined state to a vertical state. At this time, the return spring 9 is in a stretched state, and the tool locking member 12 releases the limit on the tool. The continuous downward movement of the tool holder 23 drives the tool to move downward until the lead screw nut 17 touches the limit block 18, and the grasping of the tool can be completed. The driving motor 21 drives the tool holder 23 to rotate, and the rotation of the tool holder 23 drives the tool to rotate, and the machining of the part can be completed. When tool changing is required, the servo motor 15 drives the first lead screw 16 to rotate counterclockwise. With the cooperation of the return spring 9 and the torsion spring 13, the lead screw nut 17, the tool disc 10, the tool locking member 12, and the tool clamping member 26 are reset. The first gear 11 is re-engaged with the second gear 22. The driving motor 21 drives the second gear 22 to rotate. The rotation of the second gear 22 drives the first gear 11 to rotate. The rotation of the first gear 11 drives the tool disc 10 to rotate. The rotation of the tool disc 10 can replace the tool at its lowest end. After the replacement of the tool is completed, the driving motor 21 rotates clockwise again, and the replacement of the tool can be completed, realizing the convenient and efficient replacement of the tool. At the same time, under the transmission of the sprocket 30 and the transmission chain 31, the rotation of the first lead screw 16 drives the second lead screw 29 to rotate. The rotation of the second lead screw 29 drives the pressing block 32 and the blocking block 33 to move. The moving directions of the pressing block 32 and the blocking block 33 follow the moving direction of the lead screw nut 17. With the setting of the air inlet pipe 35, the gas storage tank 27 can be replenished with gas. The movement of the pressing block 32 can transport the gas in the gas storage tank 27 to the outside of the holes at the bottom of the cleaning ring 38 through the air outlet pipe 34. Thus, the surface of the tool is cleaned synchronously when the tool is replaced, avoiding the attachment of debris on the surface of the tool. When the blocking block 33 moves downward, the blockage between the chip conveying pipe 36 and the chip discharging pipe 37 can be released. With the cooperation of the negative pressure pump, the chips generated during machining can be removed, avoiding the chips from affecting the machining of the workpiece or adhering to the tool in large quantities, which is beneficial to the subsequent cleaning of the tool. The overall structure is compact, and only two groups of driving structures are required to complete the replacement and cleaning of the tool.Reduces the cost of the equipment, improves the linkage effect of the equipment and the stability of the cutting tool.

[0023] Of course, the present invention can also have many other implementation manners. Based on this implementation manner, other implementation manners obtained by those of ordinary skill in the art without any creative work belong to the scope protected by the present invention.

Claims

1. A high-efficiency tool changing structure for a rotary table type machine tool magazine, characterized in that: It includes a protective shell (1), and a tool changing component is arranged inside the protective shell (1). The tool changing component is used for conveniently replacing the processing tool, and a cleaning component is arranged inside the protective shell (1). The cleaning component is used for cleaning the processing tool; The tool changing component includes a frame (5), a fixed frame (6), two connecting plates (7), a limiting frame (8), two reset springs (9) and a tool disc (10). The frame (5) is installed inside the protective shell (1) by bolts. The side wall of the frame (5) is provided with an opening. The fixed frame (6) is installed on the top of the frame (5) by bolts. The two connecting plates (7) are symmetrically installed on the side wall of the fixed frame (6). The limiting frame (8) is rotatably installed on the side wall of the connecting plate (7). The two reset springs (9) are symmetrically installed on the side walls of the fixed frame (6) and the limiting frame (8). The tool disc (10) is rotatably installed on the side wall of the limiting frame (8).

2. The high-efficiency tool changing structure of a rotary table type machine tool magazine according to claim 1 is characterized in that: A transparent window (2) is embedded and installed on the side wall of the protective shell (1). A box door (3) is rotatably installed on the front of the protective shell (1) through a rotating shaft. A plurality of heat dissipation holes (4) are opened on the surface of the box door (3). The frame (5) and the fixed frame (6) are hollow. The two connecting plates (7) are inclined. The cross section of the limiting frame (8) is in a U-shaped structure. The reset spring (9) is inclined. The tool disc (10) covers the outside of the limiting frame (8). The tool disc (10) is in a bowl-shaped structure. The tool disc (10) is inclined in the initial state.

3. The high-efficiency tool changing structure of a rotary table type machine tool magazine according to claim 1 is characterized in that: A first gear (11) is installed on the inner wall of the tool disc (10). A plurality of tool clamping parts (12) are evenly distributed and rotatably installed on the inner wall of the tool disc (10). The plurality of tool clamping parts (12) are symmetrically arranged in pairs. Damping wheels are provided at the ends of the plurality of tool clamping parts (12). A torsion spring (13) is sleeved outside the tool clamping part (12). A plurality of notches (14) are evenly distributed on the surface of the tool disc (10). The tool clamping part (12) is located on both sides of the notch (14).

4. The high-efficiency tool changing structure of a rotary table type machine tool magazine according to claim 1 is characterized in that: The tool changing component further includes a servo motor (15), a first lead screw (16), a lead screw nut (17), a limiting block (18), a stabilizing frame (19), a mounting frame (20) and a driving motor (21). The servo motor (15) is installed on the inner wall of the fixed frame (6) by bolts. The first lead screw (16) is installed at the output end of the servo motor (15). The lead screw nut (17) is sleeved outside the first lead screw (16). The limiting block (18) is rotatably sleeved outside the first lead screw (16). The stabilizing frame (19) is installed on the side wall of the lead screw nut (17) by bolts. The mounting frame (20) is installed on the top of the stabilizing frame (19) by bolts. The driving motor (21) is installed on the inner wall of the mounting frame (20) by bolts.

5. The high-efficiency tool changing structure of a rotary table type machine tool magazine according to claim 4 is characterized in that: The first screw rod (16) is rotatably arranged with the frame (5), the screw rod nut (17) is slidably arranged with the inner wall of the frame (5), the cross section of the mounting frame (20) is L-shaped, the output end of the driving motor (21) is equipped with a transmission rod through a coupling, the outer sleeve of the transmission rod is equipped with a second gear (22), the second gear (22) is located above the stabilizing frame (19), the second gear (22) and the first gear (11) are both wedge-shaped gears, the transmission rod is rotatably arranged with the stabilizing frame (19), the bottom end of the transmission rod is equipped with a knife seat (23), the top of the stabilizing frame (19) is symmetrically equipped with two sets of push rods (39), and the push rods (39) are arranged correspondingly to the limit frame (8).

6. The high-efficiency tool changing structure of a rotary table type machine tool magazine according to claim 5, characterized in that: A travel switch (24) is installed on the inner wall of the frame (5), and the travel switch (24) is connected to a micro electric push rod (25). A cavity is provided in the knife seat (23), and two groups of micro electric push rods (25) are symmetrically installed in the knife seat (23). The output ends of the two groups of micro electric push rods (25) are both installed with knife clamping members (26), and the cross section of the knife clamping member (26) is an arc-shaped structure.

7. The high-efficiency tool changing structure of a rotary table type machine tool magazine according to claim 1 is characterized in that: The cleaning assembly comprises an air storage box (27), a chip suction box (28), a second screw rod (29), two groups of sprocket wheels (30), a transmission chain (31), an extrusion block (32) and a blocking block (33); the air storage box (27) is mounted on a side wall of a frame (5) by means of bolts; the chip suction box (28) is mounted on a side wall of a frame (5) by means of bolts; the second screw rod (29) is rotatably installed in the air storage box (27) and the chip suction box (28); the two groups of sprocket wheels (30) are respectively sleeved on the outside of the first screw rod (16) and the second screw rod (29); the transmission chain (31) is sleeved on the outside of the sprocket wheel (30); the extrusion block (32) is sleeved on the outside of the second screw rod (29) by means of a thread and is located in the air storage box (27); and the blocking block (33) is sleeved on the outside of the second screw rod (29) by means of a thread and is located in the chip suction box (28).

8. The high-efficiency tool changing structure of a rotary table type machine tool magazine according to claim 1 is characterized in that: The cleaning assembly further comprises two groups of air outlet pipes (34), two groups of air inlet pipes (35), a chip conveying pipe (36), a chip removal pipe (37) and a cleaning ring (38). The two groups of air outlet pipes (34) are respectively installed through the top and bottom of the side wall of the air storage box (27), the two groups of air inlet pipes (35) are respectively installed through the top and bottom of the side wall of the air storage box (27), the chip conveying pipe (36) is installed through the side wall of the chip suction box (28), the chip removal pipe (37) is installed through the side wall of the chip suction box (28), and the cleaning ring (38) is rotatably installed at the bottom of the tool holder (23).

9. The high-efficiency tool changing structure of a rotary table type machine tool magazine according to claim 7, characterized in that: The chip suction box (28) is located below the air storage box (27), the extrusion block (32) is slidably arranged on the inner wall of the air storage box (27), a rubber sealing sleeve is provided on the outer side of the extrusion block (32), and the blocking block (33) is slidably arranged on the inner wall of the chip suction box (28).

10. The high-efficiency tool changing structure of a rotary table type machine tool magazine according to claim 8, characterized in that: The air outlet pipe (34) and the air inlet pipe (35) are symmetrically arranged, a one-way valve is arranged in the air inlet pipe (35), the air outlet pipe (34) and the cleaning ring (38) are connected together through a hose, the chip conveying pipe (36) and the chip removal pipe (37) are symmetrically arranged, the chip conveying pipe (36) and the chip removal pipe (37) are both controlled by a negative pressure pump, the chip conveying pipe (36) and the cleaning ring (38) are connected together, and a hole is opened at the bottom of the cleaning ring (38).

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