Reinforced nine-movement two-fixed tool rest structure

Abstract

The application discloses a reinforced nine-movable two-fixed tool rest structure and relates to the technical field of tool rests.The tool rest structure comprises a tool rest base, a fixed seat, fixed tool seats, movable tool seats, a main driving mechanism, a vice driving mechanism, a guide mechanism, an automatic tool alignment device, a tool seat pre-tightening mechanism, a tool wear monitoring block, a positioning mechanism and a controller.In the application, the nine movable tool seats can be flexibly moved on the fixed seat, and the two fixed tool seats can be combined to quickly realize the layout combination of various tools.Compared with a traditional tool rest, the tool rest does not need a complex dismounting and reinstallation process, greatly shortens the tool adjustment time, and for example, when different-shaped and different-sized parts are machined, the tool can be quickly arranged at an optimal position according to a machining path and process requirements, and the empty stroke and repeated machining caused by unreasonable tool layout are reduced.

Description

Technical Field

[0001] This invention relates to the field of tool holder technology, and in particular to a reinforced nine-moving, two-fixed tool holder structure. Background Technology

[0002] In the machining industry, the tool holder is a key component of machine tools, and its performance directly affects machining efficiency and quality.

[0003] A typical traditional tool post structure mainly consists of the tool post body, several fixed tool positions, and a simple tool changing mechanism. The tool post body is usually a relatively fixed frame structure, providing support and a mounting base for the entire tool post.

[0004] Fixed tool positions are distributed on the tool holder body in a pre-set layout, generally in a circular or linear arrangement. For example, in a circular tool holder layout, tools are mounted radially around the center of the tool holder on fixed tool holders, and the angles and positions between adjacent tools remain constant. In a linear tool holder layout, tools are fixedly mounted on the tool holder body along a straight line. This fixed tool position layout means that the relative positions between tools cannot be changed, resulting in poor flexibility in tool holder layout. It is difficult to quickly adjust tool positions and combinations for different machining processes, leading to frequent tool holder changes or tool reclamping, increasing machining auxiliary time and reducing production efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a reinforced nine-moving, two-fixed tool holder structure to solve the above-mentioned technical problems.

[0006] The technical solution adopted in this invention is as follows:

[0007] A reinforced nine-moving, two-fixed tool post structure includes a tool post base, a fixed base, fixed tool holders, movable tool holders, a main drive mechanism, a secondary drive mechanism, a guide mechanism, an automatic tool setting device, a tool holder preload mechanism, a tool wear monitoring block, a positioning mechanism, and a controller. The fixed base is located at the upper end of the tool post base, and two fixed tool holders are located at both ends of the tool post base. The guide mechanism is located between the two fixed tool holders, and several movable tool holders are movably mounted on the guide mechanism. The main drive mechanism is located at the upper end of the fixed base and is used to drive the several movable tool holders to move synchronously. Each of the aforementioned movable tool holders is provided with a secondary drive mechanism for driving the movable tool holder to move independently. The automatic tool setting device is installed at the tool setting position on the fixed base. The tool holder pre-tightening mechanism connects the movable tool holder and the fixed base. Both the movable tool holder and the fixed tool holder are provided with tool mounting parts. The tool wear monitoring block is installed on the inner wall of the tool mounting part. The positioning mechanism is located at the lower end of the movable tool holder. The controller is located on the fixed base and is connected to the main drive mechanism, the secondary drive mechanism, and the automatic tool setting device.

[0008] Preferably, the guiding mechanism includes a slide rail, a slider, and a movable sleeve. The two slide rails are disposed between the two fixed tool holders. Each movable tool holder is slidably connected to the two slide rails via the slider. A movable sleeve is rotatably disposed on one side of each movable tool holder.

[0009] As a further preferred embodiment, the movable sleeve is connected to the movable blade holder via a bracket, the bracket being U-shaped, the movable sleeve being disposed inside the bracket, and the two ends of the movable sleeve being rotatably connected to the inner walls of both sides of the bracket via rotating shafts.

[0010] As a further preferred embodiment, the auxiliary drive mechanism includes a self-locking motor, a driving gear, and a driven gear. The self-locking motor is mounted on one side of the outer wall of the movable tool holder, the driving gear is mounted on the motor shaft of the self-locking motor, and the driven gear is sleeved on the outer wall of the movable sleeve. The driving gear meshes with the driven gear.

[0011] As a further preferred embodiment, the main drive mechanism includes a motor, a lead screw, bearing housings, a reducer, and a coupling. The two ends of the lead screw are mounted on the upper surface of the fixed base through the two bearing housings. The motor shaft of the motor is connected to the reducer through the coupling. The reducer is connected to one end of the lead screw. The movable sleeve is disposed on the lead screw and threadedly connected to the lead screw.

[0012] Preferably, the tool holder pre-tightening mechanism includes a pre-tightening screw and a nut. A threaded hole is provided in the middle of the lower end of the movable tool holder. One end of the pre-tightening screw is located in the threaded hole. A strip-shaped hole is provided on the fixed seat. The other end of the pre-tightening screw passes through the strip-shaped hole. The nut is located at the other end of the pre-tightening screw.

[0013] As a further preferred embodiment, the strip hole is arranged along the moving direction of the movable tool holder, a support plate is sleeved on the pre-tightening screw, a pre-tightening spring is arranged around the pre-tightening screw, one end of the pre-tightening spring is connected to the lower end of the movable tool holder, and the other end of the pre-tightening spring is connected to the support plate.

[0014] Preferably, the positioning mechanism includes a positioning pin, and the upper end of the fixed base is provided with a positioning groove. The positioning groove is arranged along the moving direction of the movable tool holder. One end of the positioning pin is connected to the lower end of the movable tool holder, and the other end of the positioning pin extends into the positioning groove and can slide in the positioning groove.

[0015] Preferably, the buffer mechanism includes a guide shaft, connecting blocks, and springs. The guide shaft passes through several movable tool holders, and both ends of the guide shaft are connected to two fixed tool holders. Two connecting blocks and a spring are provided between each fixed tool holder and its corresponding movable tool holder, as well as between two adjacent movable tool holders. The connecting blocks and the springs are both sleeved on the guide shaft, and both ends of the springs are located inside the two connecting blocks and connected to the connecting blocks.

[0016] Preferably, the device also includes adjusting bolts, with one adjusting bolt provided at each included angle position of the fixing seat.

[0017] The above technical solution has the following advantages or beneficial effects:

[0018] (1) In this invention, by setting nine movable tool holders, they can move flexibly on the fixed base. With the help of two fixed tool holders, a variety of tool layout combinations can be quickly realized. Compared with traditional tool holders, there is no need for complicated disassembly and reinstallation processes, which greatly shortens the tool adjustment time. For example, when processing parts of different shapes and sizes, the tools can be quickly arranged to the best position according to the processing path and process requirements, reducing the idle stroke and repeated processing caused by unreasonable tool layout.

[0019] (2) In this invention, through the cooperation of the slide rail and the slider, the precise positioning of the positioning pin, and the auxiliary stabilization of the connecting block, spring, and guide shaft, the movable tool holder can maintain high precision during movement and fixation. During the processing, the tool position deviation can be controlled within ±0.05mm, which is significantly reduced compared to the traditional tool holder position deviation, effectively ensuring the consistency and accuracy of processing dimensions and improving product quality.

[0020] (3) In this invention, the automatic tool setting device is a laser tool setter, which can quickly and accurately detect tool position deviation. The tool setting process is automatically controlled by the drive mechanism according to the signal of the tool setter, without the need for manual repeated adjustments, which effectively improves the tool setting accuracy.

[0021] (4) In this invention, by setting the tool holder preload mechanism, the preload of the movable tool holder can be flexibly changed according to different processing requirements. When processing high-hardness materials or performing heavy cutting, increasing the preload can effectively prevent the movable tool holder from displacing under the action of cutting force, ensuring stable cutting of the tool. When performing fine machining, the preload can be appropriately reduced to avoid affecting the flexibility of the tool and the surface quality of the machining due to excessive preload. This adjustable preload design improves the adaptability of the tool holder to different processing conditions, and the processing quality can be significantly improved.

[0022] (5) In this invention, the tool wear monitoring block is made of wear-resistant ceramic material and is installed on the inner wall of the tool mounting part, which can monitor the tool wear in real time. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the reinforced nine-moving and two-fixed tool holder structure in this invention;

[0024] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0025] Figure 3 This is a schematic diagram of the pre-tightening mechanism of the bottom rain knife holder in the present invention.

[0026] In the diagram: 1. Tool holder base; 2. Fixed seat; 3. Fixed tool holder; 4. Movable tool holder; 5. Automatic tool setting device; 6. Tool wear monitoring block; 7. Tool mounting part; 8. Slide rail; 9. Movable sleeve; 10. Bracket; 11. Rotating shaft; 12. Self-locking motor; 13. Driving gear; 14. Driven gear; 15. Motor; 16. Lead screw; 17. Bearing housing; 18. Reducer; 19. Coupling; 20. Preload screw; 21. Nut; 22. Strip hole; 23. Support plate; 24. Preload spring; 25. Locating pin; 26. Locating groove; 27. Guide shaft; 28. Connecting block; 29. ​​Spring; 30. Adjusting bolt. Detailed Implementation

[0027] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be noted that terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] Figure 1 This is a schematic diagram of the reinforced nine-moving and two-fixed tool holder structure in this invention; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the pre-tightening mechanism of the bottom rain blade holder in the movable blade holder of the present invention. Please refer to [link / reference]. Figures 1 to 3The diagram illustrates a preferred embodiment of a reinforced nine-moving, two-fixed tool holder structure, comprising a tool holder base 1, a fixed base 2, fixed tool holders 3, movable tool holders 4, a main drive mechanism, a secondary drive mechanism, a guide mechanism, an automatic tool setting device 5, a tool holder pre-tightening mechanism, a tool wear monitoring block 6, a positioning mechanism, and a controller. The fixed base 2 is located at the upper end of the tool holder base 1, and two fixed tool holders 3 are located at both ends of the tool holder base 1. The guide mechanism is located between the two fixed tool holders 3, and several movable tool holders 4 are movably mounted on the guide mechanism. The main drive mechanism is located at the upper end of the fixed base 2. The system is designed to drive several movable tool holders 4 to move synchronously. Each movable tool holder 4 is equipped with a drive mechanism for driving the movable tool holder 4 to move independently. The automatic tool setting device 5 is installed on the tool setting position on the fixed base 2. The tool holder pre-tightening mechanism connects the movable tool holder 4 and the fixed base 2. Both the movable tool holder 4 and the fixed tool holder 3 are equipped with tool mounting parts 7. The tool wear monitoring block 6 is installed on the inner wall of the tool mounting part 7. The positioning mechanism is located at the lower end of the movable tool holder 4. The controller is located on the fixed base 2 and is connected to the main drive mechanism, the auxiliary drive mechanism, and the automatic tool setting device 5. In this embodiment, the tool holder base 1 is made of high-strength cast iron material, providing stable support for the entire tool holder. Four support columns are welded and fixed evenly and vertically around its upper surface. The top of the four support columns is welded or connected to the fixed base 2 by bolts to ensure the stability of the overall structure of the tool holder. Nine movable tool holders 4 and two fixed tool holders 3 are distributed along the length of the upper surface of the fixed base 2. The two fixed tool holders 3 are welded to both ends of the fixed base 2. The movable tool holders 4 can move freely. The setting of the main drive mechanism and the auxiliary drive mechanism can realize the adjustment of the position of the movable tool holders 4. It can adjust the position of the nine movable tool holders 4 simultaneously, or adjust the position of each movable tool holder 4 individually.

[0031] Furthermore, as a preferred embodiment, the guiding mechanism includes slide rails 8, sliders, and movable sleeves 9. Two slide rails 8 are disposed between two fixed tool holders 3. Each movable tool holder 4 is slidably connected to both slide rails 8 via sliders. A movable sleeve 9 is rotatably disposed on one side of each movable tool holder 4. In this embodiment, the movable sleeves 9 of the nine movable tool holders 4 can rotate synchronously or independently. The movable tool holders 4 can slide on the slide rails 8, which are arranged along the length of the upper surface of the fixed base 2. See [link to details]. Figure 1 As shown.

[0032] Furthermore, in a preferred embodiment, the movable sleeve 9 is connected to the movable tool holder 4 via a bracket 10. The bracket 10 is U-shaped, and the movable sleeve 9 is located inside the bracket 10. Both ends of the movable sleeve 9 are rotatably connected to the inner walls of the bracket 10 via rotating shafts 11. The bracket 10 is welded to the side wall of the movable tool holder 4 for mounting the movable sleeve 9. (See [reference]). Figure 2As shown, the two ends of the movable sleeve 9 are fixedly connected to two rotating shafts 11, and the rotating shafts 11 are rotatably connected to the inner walls of both sides of the bracket 10.

[0033] Furthermore, as a preferred embodiment, the secondary drive mechanism includes a self-locking motor 12, a driving gear 13, and a driven gear 14. The self-locking motor 12 is mounted on one outer wall of the movable tool holder 4. The driving gear 13 is mounted on the motor shaft 15 of the self-locking motor 12, and the driven gear 14 is fitted on the outer wall of the movable sleeve 9. The driving gear 13 meshes with the driven gear 14. The self-locking motor 12 has a self-locking function; when the power is off, the motor shaft 15 of the self-locking motor 12 will not rotate, and in conjunction with the driving gear 13 and the driven gear 14, it locks the movable sleeve 9, preventing it from rotating. When the self-locking motor 12 is working, it can drive the driving gear 13 to rotate the driven gear 14, which in turn drives the movable sleeve 9 to rotate, thereby driving the movable tool holder 4 to move.

[0034] Furthermore, as a preferred embodiment, the main drive mechanism includes a motor 15, a lead screw 16, bearing seats 17, a reducer 18, and a coupling 19. Both ends of the lead screw 16 are mounted on the upper surface of the fixed base 2 via two bearing seats 17. The motor shaft of the motor 15 is connected to the reducer 18 via the coupling 19. The reducer 18 is connected to one end of the lead screw 16. A movable sleeve 9 is mounted on the lead screw 16 and threadedly connected to it. The motor 15 can drive the reducer 18 to rotate, and the reducer 18 drives the lead screw 16 to rotate. Because the movable sleeve 9 is threadedly engaged with the lead screw 16, when the lead screw 16 rotates, it can drive the movable sleeve 9 to move linearly, thereby moving the movable tool holder 4.

[0035] In this embodiment, when the motor 15 is working, it can drive all the movable tool holders 4 to move, while the self-locking motor 12 can drive the corresponding movable tool holder 4 to move independently.

[0036] Furthermore, as a preferred embodiment, the tool holder pre-tightening mechanism includes a pre-tightening screw 20 and a nut 21. A threaded hole is provided in the middle of the lower end of the movable tool holder 4. One end of the pre-tightening screw 20 is located within the threaded hole. A slotted hole 22 is provided on the fixed base 2, through which the other end of the pre-tightening screw 20 passes. The nut 21 is located at the other end of the pre-tightening screw 20. The slotted hole 22 is positioned along the moving direction of the movable tool holder 4. A support plate 23 is sleeved on the pre-tightening screw 20. A pre-tightening spring 24 is provided around the pre-tightening screw 20. One end of the pre-tightening spring 24 is connected to the lower end of the movable tool holder 4, and the other end is connected to the support plate 23. In this embodiment, the width of the slot 22 is greater than the outer diameter of the preload screw 20 to facilitate its passage. By tightening the nut 21, the preload screw 20 pulls the movable tool holder 4 downward, thereby compressing the preload spring 24. The lower surface of the support plate 23 then presses against the upper surface of the fixed base 2. By rotating the nut 21, the operator can compress or release the preload spring 24, adjusting the preload force of the movable tool holder 4 to enhance its stability on the fixed base 2 and resist machining vibrations and cutting forces. The tool holder preload mechanism does not affect the normal movement of the movable tool holder 4.

[0037] Furthermore, as a preferred embodiment, the positioning mechanism includes a positioning pin 25, and a positioning groove 26 is provided at the upper end of the fixed base 2. The positioning groove 26 is arranged along the moving direction of the movable tool holder 4. One end of the positioning pin 25 is connected to the lower end of the movable tool holder 4, and the other end of the positioning pin 25 extends into the positioning groove 26 and can slide in the positioning groove 26. By setting the positioning pin 25, the movable tool holder 4 can be prevented from shaking along the width direction of the fixed base 2, so that the movable tool holder 4 can only move along the length direction of the fixed base 2.

[0038] Furthermore, as a preferred embodiment, the buffer mechanism includes a guide shaft 27, connecting blocks 28, and springs 29. The guide shaft 27 passes through several movable tool holders 4, and both ends of the guide shaft 27 are connected to two fixed tool holders 3. Two connecting blocks 28 and one spring 29 are provided between each fixed tool holder 3 and its corresponding movable tool holder 4, as well as between two adjacent movable tool holders 4. Both connecting blocks 28 and springs 29 are sleeved on the guide shaft 27, and both ends of the spring 29 are located inside the two connecting blocks 28 and connected to them. The arrangement of the guide shaft 27, connecting blocks 28, and springs 29 increases the stability between two adjacent movable tool holders 4. Through the cooperation of the springs 29 and connecting blocks 28, the movable tool holders 4 are buffered during movement, thereby improving the stability of their movement.

[0039] Furthermore, as a preferred embodiment, it also includes adjusting bolts 30, with one adjusting bolt 30 provided at each included angle position of the fixing seat 2. In this embodiment, the fixing seat 2 is mounted on an external machine tool or other support structure. If the surface of the fixing seat 2 is uneven, it can be leveled by rotating the adjusting bolts 30.

[0040] In this embodiment, the automatic tool setting device 5 is a laser tool setter, which is used to detect whether the tool is installed in place. The laser tool setter, motor 15 and self-locking motor 12 are respectively connected to the controller, which can be a PLC controller.

[0041] During machining, the operating status of the tool holder is observed through the external machine tool monitoring system, including the stability of the movable tool holder 4 and the cutting condition of the tool. If slight vibration of the tool holder or minor deviation of the tool position is detected, the level of the fixed seat 2 or the overall tool holder status can be finely adjusted by adjusting bolt 30 to reduce vibration and positional deviation and ensure machining quality. At the same time, the tool wear monitoring block 6 monitors the tool wear in real time, and the operator can judge the degree of tool wear by observing the wear marks on the tool wear monitoring block 6.

[0042] In this embodiment, multiple movable tool holders 4 can be controlled to move synchronously, or the movable tool holders 4 can be controlled to move individually, in order to meet the needs of multi-process machining.

[0043] In use, the through-hole controller can control the motor 15 to rotate, which drives the reducer 18 to rotate. The reducer 18 drives the lead screw 16 to rotate, and the lead screw 16 drives the movable sleeve 9 to move, thereby driving all the movable tool holders 4 to move. When it is necessary to adjust the position of a certain movable tool holder 4, the controller controls the self-locking motor 12 to work. The self-locking motor 12 drives the movable sleeve 9 to rotate through the driving gear 13 and the driven gear 14, thereby driving a certain movable tool holder 4 to move, realizing the adjustment of the position of the movable tool holder 4. Then, the external tool changing mechanism places the tool in the tool mounting part 7, and the automatic tool setting device 5 detects whether the tool is installed in place. If it is not installed in place, the controller will control the motor 15 or the self-locking motor 12 to drive the corresponding movable tool holder 4 to move until the tool can be correctly installed in the tool mounting part 7 on the movable tool holder 4. Then, the external cutting tool begins to process the tool. The tool wear monitoring block 6 is set on the inner wall of the tool mounting part 7, which can directly and closely contact the tool, and can more directly and accurately sense the tool wear. For wear caused by the relative movement between the tool holder and the tool mounting part 7, the tool wear monitoring block 6 installed on the inner wall can capture minute changes in a timely manner and provide accurate wear data.

[0044] The above description is merely a preferred embodiment of the present invention and does not limit the implementation and protection scope of the present invention. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A reinforced nine-moving, two-fixed tool holder structure, characterized in that, The device includes a tool holder base, a fixed base, fixed tool holders, movable tool holders, a main drive mechanism, a secondary drive mechanism, a guide mechanism, a buffer mechanism, an automatic tool setting device, a tool holder preload mechanism, a tool wear monitoring block, a positioning mechanism, and a controller. The fixed base is located at the upper end of the tool holder base, and two fixed tool holders are located at both ends of the tool holder base. The guide mechanism is located between the two fixed tool holders, and several movable tool holders are movably mounted on the guide mechanism. The main drive mechanism is located at the upper end of the fixed base and is used to drive the several movable tool holders to move synchronously. Each movable tool holder... Each tool holder is provided with a secondary drive mechanism for driving the movable tool holder to move independently. The automatic tool setting device is installed at the tool setting position on the fixed base. The tool holder pre-tightening mechanism connects the movable tool holder and the fixed base. Both the movable and fixed tool holders are provided with tool mounting parts. The tool wear monitoring block is installed on the inner wall of the tool mounting part. The positioning mechanism is located at the lower end of the movable tool holder. The controller is located on the fixed base and is connected to the main drive mechanism, the secondary drive mechanism, and the automatic tool setting device. The tool holder pre-tightening mechanism includes a pre-tightening screw and a nut. A threaded hole is provided in the middle of the lower end of the movable tool holder. One end of the pre-tightening screw is located in the threaded hole. A strip-shaped hole is provided on the fixed seat. The other end of the pre-tightening screw passes through the strip-shaped hole. The nut is located at the other end of the pre-tightening screw. The strip-shaped hole is arranged along the moving direction of the movable tool holder. A support plate is sleeved on the pre-tightening screw. A pre-tightening spring is arranged around the pre-tightening screw. One end of the pre-tightening spring is connected to the lower end of the movable tool holder, and the other end of the pre-tightening spring is connected to the support plate. The buffer mechanism includes a guide shaft, connecting blocks, and springs. The guide shaft passes through several movable tool holders, and both ends of the guide shaft are connected to two fixed tool holders. Two connecting blocks and a spring are provided between each fixed tool holder and its corresponding movable tool holder, as well as between two adjacent movable tool holders. The connecting blocks and the springs are both sleeved on the guide shaft, and both ends of the springs are located inside the two connecting blocks and connected to the connecting blocks.

2. The reinforced nine-moving, two-fixed tool holder structure as described in claim 1, characterized in that, The guiding mechanism includes a slide rail, a slider, and a movable sleeve. The two slide rails are disposed between the two fixed tool holders. Each movable tool holder is slidably connected to the two slide rails via the slider. A movable sleeve is rotatably disposed on one side of each movable tool holder.

3. The reinforced nine-moving, two-fixed tool holder structure as described in claim 2, characterized in that, The movable sleeve is connected to the movable blade holder via a bracket. The bracket is U-shaped, and the movable sleeve is located inside the bracket. Both ends of the movable sleeve are rotatably connected to the inner walls of the bracket on both sides via rotating shafts.

4. The reinforced nine-moving, two-fixed tool holder structure as described in claim 2, characterized in that, The auxiliary drive mechanism includes a self-locking motor, a driving gear, and a driven gear. The self-locking motor is mounted on one outer wall of the movable tool holder. The driving gear is mounted on the motor shaft of the self-locking motor. The driven gear is sleeved on the outer wall of the movable sleeve. The driving gear meshes with the driven gear.

5. The reinforced nine-moving, two-fixed tool holder structure as described in claim 2, characterized in that, The main drive mechanism includes a motor, a lead screw, bearing housings, a reducer, and a coupling. The two ends of the lead screw are mounted on the upper surface of the fixed base through the two bearing housings. The motor shaft of the motor is connected to the reducer through the coupling. The reducer is connected to one end of the lead screw. The movable sleeve is disposed on the lead screw and threadedly connected to the lead screw.

6. The reinforced nine-moving, two-fixed tool holder structure as described in claim 1, characterized in that, The positioning mechanism includes a positioning pin, and a positioning groove is provided at the upper end of the fixed base. The positioning groove is arranged along the moving direction of the movable tool holder. One end of the positioning pin is connected to the lower end of the movable tool holder, and the other end of the positioning pin extends into the positioning groove and can slide within the positioning groove.

7. The reinforced nine-moving, two-fixed tool holder structure as described in claim 1, characterized in that, It also includes adjusting bolts, with one adjusting bolt provided at each included angle position of the fixing seat.

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