Integrated lathe with the ability to create stable and controllable rotational motion for the lathe tool.

Abstract

The present design is an integrated lathe in which a set of hydraulic, mechanical and electronic components are designed in a coordinated and coaxial manner in the form of a single system to provide precise, stable and controllable rotary motion for the lathe tool. In this machine, power is generated by a hydraulic power unit and this power is converted into rotary motion through a hydromotor. The output of the hydromotor enters the gearbox and after adjusting the speed and torque, it is transmitted to the main shaft. The lathe shaft is located directly along the output of the gearbox, and the spindle collet connected to it is responsible for holding the tool with high rigidity and accuracy. The shaft rotation speed and functional coordination of the system are controlled by an inverter and a central electrical panel so that the spindle speed, torque, and operating conditions remain constant throughout all machining stages. Combining these components in a compact, aligned structure allows power to be transferred without loss, oscillation, or destructive vibration, and the machine is able to perform high-quality turning operations, precise dimensional tolerances, and stability under varying loads. This integrated design not only increases efficiency and reduces component wear, but also simplifies the operating process and reduces the need for independent peripheral equipment. The presented device has direct and practical application in various industries related to metal machining and the production of rotating parts, due to its stable performance, uniform output power, and precise controllability.

Description

Description of the invention Title of the invention (as stated in the declaration) Integrated lathe with the ability to create stable and controllable rotational motion for the lathe tool Technical background of the relevant invention This invention relates generally to the field of mechanical engineering and workshop machinery, and specifically to lathes and machine tools carrying hydraulic and electronic control systems. Technical problem and stating the objectives of the invention In common lathe systems used in workshops and industrial units, providing spindle rotation, generating the necessary torque for turning, controlling speed, and applying hydraulic power are usually performed by a set of separate devices. This multi-part structure causes insufficient coordination between mechanical, electronic, and hydraulic components, and the operator is forced to perform independent and sometimes difficult adjustments and controls on several devices for each stage of the turning operation. Existing systems generally use a traditional lathe along with a set including a hydraulic power unit, hydromotor, connecting hoses, a separate electrical panel, and speed control equipment, each of which operates as an island and lacks operational integrity. This island structure clearly affects the final performance of the machine and results in reduced surface finish quality, instability in shaft rotation speed, limitations in instantaneous torque control, and increased component wear. One of the serious problems with traditional devices is the lack of a reliable and accurate speed control system.Many older machines use simple mechanical or electromechanical methods for speed control, which can lead to power loss, spindle vibration, and unwanted speed changes when exposed to variable loads. The lack of a suitable inverter to control motor speed or coordinate it with hydraulic power leads to fluctuations in rotational speed and errors in the machining operation; errors that can reduce part quality, dimensional accuracy, and repeatability of the production process. In addition, the lack of coordination between the hydraulic motor output power and the mechanical characteristics of the spindle shaft and collet leads to unbalanced pressures, increased system temperatures, and reduced component life. Operational complexity and operator difficulty are also other problems with common systems. The operator must manage the lathe on the one hand and the hydraulic power unit on the other; that is, each time the part, tool, or material changes, he must make settings for each machine separately. This not only increases production time, but also increases the possibility of human error. Many operators face difficulty working with separate hydraulic systems, because coordinating hydraulic pressure, motor power, and lathe conditions requires a lot of experience. This situation is also clearly indicated in the submitted file that the operator must make settings for the tool, hydraulics, and lathe independently and with high precision based on the work plan in order to perform the operation correctly. Another fundamental problem with these systems is the issue of increasing costs and reducing productivity. Using two independent machines – one for lathe and the other for hydraulic power and movement – ​​in addition to significantly increasing the initial purchase cost, also doubles the cost of repair and maintenance.The coordination and connection of these devices with multiple hoses, cables, and connectors creates multiple weak points in the system and increases the likelihood of failure. Electronic noise, hydraulic leaks, greater vulnerability to shock, and component wear are among the consequences of this dispersed structure. The submitted file also notes that the conventional method requires the use of two separate devices and, in addition to being more expensive, has a higher operational complexity. Given the growing need of the industry to achieve integrated, reliable, low-cost and high-precision control systems, it is clear that existing devices do not meet the new needs. Therefore, the main goal of this invention is to design and provide a fully integrated system in which the spindle shaft and collet, gearbox, hydromotor, hydraulic power unit, inverter and control panel are placed in a single and coordinated structure so that the system can perform all the necessary operations for turning with high accuracy, stability and adjustability without the need for multiple peripheral equipment. This integration, in addition to reducing the total cost, increases efficiency, reduces operator complexity and increases the useful life of the device and paves the way for wider use in industrial production lines. Also, providing the possibility of accurate tool selection, adjustment to the material and coordinated control of hydraulics and electronics are other goals that this invention pursues in order to solve the previous problems. A description of the state of the prior art and the history of developments related to the claimed invention. In recent decades, turning machines and related machining equipment have seen advances in various areas, including workpiece holding systems, automatic positioning mechanisms, new chip removal methods, and fully automated systems. Despite these advances, most machine tool patents have focused on a specific part of the turning process, such as improvements to the four systems, holding systems, specific cutting methods, or the development of special machines for specific materials. In many of these designs, the main focus has been on the toolholder, the holder, or the method of turning, and the integration of hydraulic, mechanical, and electronic power into a single system has received less attention. Existing turning machines typically use traditional structures for power transmission, speed control, and spindle motion. In common systems, the spindle's rotational motion is often provided by standard electric motors and conventional gearboxes, and hydraulic power is used only to move some components, such as the four systems or auxiliary axes.These structures lack functional integration between the drive motor, hydraulic system, electronic control and spindle. Furthermore, in known methods, speed control, torque regulation and hydraulic power supply are performed in independent systems and the operator is forced to manage several different units simultaneously. As mentioned in the existing file, the coordination of these components has always caused complexity, increased cost and reduced accuracy of operation. The present invention is in contrast to the prior art and provides an integrated solution in which the spindle shaft and collet assembly, hydromotor, hydraulic power unit, gearbox, inverter and electrical panel are designed as a single device. The main feature of this invention is the combination of three vital systems (mechanical, hydraulic and electronic) in one structure, which the prior art lacks. The detailed and technical differences of this invention with the four examples mentioned are explained below. In the domestic patent entitled Four Irregular Hydraulic Systems of a Lathe with Automatic Workpiece Centering Capability, registered number 101995, it refers to an invention that focuses entirely on the workpiece holder (four systems) and the automatic centering process. Its main goal is to reduce setup time, eliminate operator intervention, and automate centering operations. The structure of this invention includes cylinders, pistons, electric valves, PLC board, digital keyboard, and holding mechanism components. The main differences between this invention and the present invention include focusing on the tool holder / part holder, while the present invention integrates a complete drive system including shaft, collet, gearbox, hydromotor, power unit, and inverter. In this invention, no rotation system, power transmission, speed control, or drive mechanism is provided, and the four systems only play a supporting role. The present invention uses hydraulics to generate power and spindle movement, but in this invention, hydraulics are used only to move the jaws of the four systems.The control system of the said invention is a PLC which only adjusts the position of the jaws, while the system of the present invention includes the coordinated control of the speed, torque and driving power. Also, this invention has nothing to do with the uniform power transmission, the accuracy of the spindle rotation, the reduction of vibration or the fully integrated structure, so its technical scope and functional area are completely separate from the subject matter of the present invention. In the domestic patent entitled Rotary Peeling Machine Using Electric Arc with registration number 113357, it refers to an invention that is a specific method of peeling off the surface of metals using electric arc gouging and molten metal ejection by air pressure. The said machine is a combined welding-gouging system whose purpose is to create grooves or remove unwanted layers by means of an electric arc, not a precision turning operation. This invention is essentially a thermal process (thermal gouging), not a mechanical system for transmitting motion. Furthermore, in the peeling machine, the role of rotation is only for moving the workpiece, while in the present design, the rotation of the spindle and the transmission of the driving power are the main axis of the machine's operation. There is no hydromotor, hydraulic power unit, gearbox or spindle collet in that invention. Its cutting method is based on melting the metal, while the present machine is based on precise rotary mechanical cutting. The rotating part in this invention is only for rotating the workpiece, but in the present design, the main rotating axis is the turning tool.This invention is by no means a complete mechanical lathe and is in a different technical field. Therefore, in terms of structure, purpose, and technology, it does not have a significant similarity to the present invention, and there is no technical overlap between the two systems. In the domestic patent entitled "Spherical cutting device that can be installed on a conventional lathe" with registration number 65852, it refers to an invention that is a special tool or attachment that is installed on an existing lathe to provide the ability to cut spherical parts. Its main focus is on the ability to change the center of rotation of the tool to create a spherical path. This design is a module or attachment for the lathe and is not an independent device itself. The main turning device in this invention is the same traditional device; while in the present design, a complete device with an integrated drive and control system is designed. This invention does not have any hydraulic power system, dedicated shaft, gearbox, hydromotor or collet designed and simply changes the path of movement of the tool to perform spherical cutting, but the present device creates a complete infrastructure for motion generation, distance control and power transmission. The spherical cutting device is dependent on the power of the host lathe; but the present device itself provides power. This shows that the present design is not at the level of an auxiliary tool but at the level of the basic machine tool. In the domestic patent entitled Fully Automatic Ceramic Ingot Turning Machine for Ceramic Bullet Production with registration number 106029, it refers to an invention that is a special purpose machine for shaping ceramic ingots and converting them into bullets, and its full automation is related to the specific process of producing ceramic bullets. This system is designed for a type of material (ceramic) and a specific process (pelletizing). The structure of the device is based on the complete automation of the turning cycle of a specific material and cannot perform general turning operations. This device lacks the integration of hydraulic and electronic drives in the manner of the present design. The hydraulics in this invention are used solely for process automation and there is no power transmission structure similar to your device. The present design is a general and multipurpose machine tool, while this invention is a special-purpose machine. The speed control, torque, spindle collet, and power transmission system in this invention are not similar to the present design, and its functional scope is much more limited.Therefore, it is not considered to be equivalent or similar to the present invention in terms of function, technical structure, and industrial application. Providing a solution to an existing technical problem along with an accurate, sufficient, and integrated description of the invention The solution that the present design offers to overcome the problems of conventional systems is the design and construction of a fully integrated device in which all mechanical, hydraulic and electronic components operate as a coordinated and interconnected system. This integration eliminates the need for several independent devices, eliminates the scattered and unreliable connections that existed between components in previous methods, and also creates a stable and accurate control system for the rotation of the shaft and spindle. In this device, the shaft and spindle collet, gearbox, hydromotor, hydraulic power unit, electrical panel and inverter are all located in a coherent structure and are designed in such a way that mechanical power, hydraulic power and electronic control are in a continuous and coordinated interaction. This structure not only increases the accuracy and quality of the turning operation, but also allows the operator to fully control the speed, torque and driving force, and all operations can be managed using a central control system.For this reason, the need for complex and separate settings for each device is eliminated and operational errors due to lack of coordination between components are completely eliminated. The main components of the aforementioned device include the spindle shaft and collet, the device gearbox, the hydromotor, the hydraulic power unit (hydraulic pack), hydraulic hoses and connections, the electrical panel and the electronic control system, in which the shaft acts as the main element for transmitting rotational motion and, through the spindle collet, holds the turning tool with high precision on a specific axis. The collet in this design was selected according to industrial needs and the possibility of using various tools and provides the ability to lock and securely hold the tool with minimal play and maximum rigidity. The reason for using this type of collet is to maintain dimensional accuracy, prevent tool vibration and be able to withstand radial and axial loads at high speeds. The gearbox of the device is responsible for converting and adjusting the input speed produced by the hydromotor according to the needs of the turning operation.This section enables the transmission of appropriate torque at different speeds, and as a result, the machine is able to perform light and heavy turning operations with complete stability. The use of a gearbox in this design reduces the load on the hydromotor and increases the functional life of the system. The hydromotor is the main source of rotational motion in the system and provides the power required by the spindle through hydraulic pressure. The selection of the hydromotor in this invention is based on high torque capacity, good durability, and the ability to accurately control the output power. This selection also ensures complete coordination with the hydraulic power unit and the functional needs of the machine. The hydraulic power unit section (hydraulic pack) includes a pump, tank, valves, and a pressure control assembly and provides the necessary hydraulic power to start the hydromotor. The power unit is designed according to the flow rate, pressure, and power required by the machine and plays a vital role in creating a uniform flow without oscillations. Using an independent power unit integrated with the main structure increases pressure stability and reduces stresses on rotating components.High-pressure hoses are responsible for transferring high-pressure oil from the power unit to the hydraulic motor and returning it. In this design, the hydraulic paths are designed to achieve the lowest pressure drop and the highest power transfer efficiency. Also, the selection of high-strength connections ensures system safety. The electrical panel includes switches, contactors, protections, and control circuits and is considered the center of the device's performance management. The reason for using a comprehensive electrical panel in this design is to create a single control interface for the operator and eliminate the dispersion of control systems. The inverter allows for precise speed adjustment and gradual control of speed changes. With the inverter, the shaft rotation speed can be adjusted according to the needs of the turning operation without oscillation. The main reason for using the inverter is to prevent electrical and mechanical shocks, increase output accuracy, and complete coordination between the electronic and hydraulic systems. In general, in the structure of this device, the hydraulic power unit is located in the lower part of the device and in a separate compartment to prevent heat and vibration transfer to other components. The hydromotor is installed near the gearbox and along the shaft axis to achieve the lowest torque loss and the highest power transmission efficiency. The gearbox is directly connected to the shaft and spindle collet, and this arrangement eliminates backlash and prevents system vibration. The electrical panel is placed in the upper or side of the device and is designed in such a way that the operator has easy access to the start keys, remote control and other commands. Cables and hoses are also guided in standard routes with appropriate restraints to prevent any contact with rotating parts. The following describes the relationship between the components and the formation of the overall performance of the device. In fact, the operation of the device begins with the activation of the electrical panel. The inverter first puts the engine in standby mode and provides the necessary electrical current to control the steering wheels. Then the hydraulic power unit is activated by the steering system and the pump produces a high-pressure oil flow. This flow is transmitted to the hydraulic motor through high-pressure hoses. The hydraulic motor starts to rotate under the effect of hydraulic pressure and transmits its generated torque to the gearbox. The gearbox converts the speed and torque according to the selected ratio and its output is transmitted directly to the shaft. The shaft also moves the spindle collet with uniform and stable rotation and rotates the turning tool with complete accuracy and stability. The operator can adjust the rotation speed, rotation direction and output power of the system at any time using the inverter and control keys.This seamless coordination between hydraulic power, electronic control, and mechanical components results in vibration-free, high-precision turning operations with minimal operator intervention. Finally, due to the integrated design, all components are in direct communication with each other, and this coherent communication makes the overall performance of the machine stable, powerful, and precise. Explanation of shapes, maps and diagrams Figure 1: Shows an overview of the device from two different angles. Figure 1 (number 1): shows the lathe. Figure 1 (number 2): Shows the electrical panel. Figure 1 (number 3): Shows the hydromotor. Figure 1 (number 4): shows a cross screw. Figure 1 (number 5): Shows the hydraulic oil hose. Figure 1 (number 6): shows a hydraulic powerback. Figure 1 (number 7): Shows the spindle hydromotor clutch. Figure 1 (number 8): shows the holding body. Figure 1 (number 9): shows a finger mill. Figure 2: Shows the exploded view of the device. Figure 2 (number 1): shows the cutting machine. Figure 2 (number 2): Shows the electrical panel. Figure 2 (number 3): Shows the hydromotor. Figure 2 (number 4): shows a cross screw. Figure 2 (number 5): Shows the hydraulic oil hose. Figure 2 (number 6): shows the hydraulic powerback. Figure 2 (number 7): Shows the spindle hydromotor clutch. Figure 2 (number 8): Shows the holding body. Figure 2 (number 9): shows a finger mill. A clear and precise statement of the advantages of the claimed invention over prior inventions. 1. Complete system integration: By integrating mechanical, hydraulic, and electronic components into a single device, this invention eliminates the need for multiple independent assemblies. The result of this integration is the elimination of scattered cables and hoses, reduced points of failure, and ease of service and maintenance that are virtually nonexistent in distributed systems consisting of multiple devices. 2. Precise and continuous control of speed and torque: The presence of an inverter and an integrated control system allows the spindle speed and output torque to be adjusted continuously and precisely; therefore, when faced with variable loads, the speed drop or torque fluctuation is reduced and the quality of machining and dimensional repeatability of parts are improved. 3. Increasing power transmission efficiency and reducing energy loss: The coaxial arrangement of the hydromotor, gearbox, and shaft and short power transmission paths reduce power loss in the transmission path. In addition to increasing energy efficiency, this leads to reduced heat generation and wear of mechanical components. 4. Reducing wear and increasing the useful life of components: Coordination between hydraulic power, gearbox ratios, and shaft and collet rigidity minimizes transient stresses and destructive vibrations; as a result, the useful life of bearings, gearbox teeth, and other components is significantly increased. 5. Reduced purchase and maintenance costs: By replacing multiple independent devices with one integrated machine, the initial capital cost is reduced and maintenance costs, repairs, and downtime are reduced; in addition, logistical complexities (parts warehouse, operator training for multiple systems) are also reduced. 6. Ease of operation and central control: The centralized electrical panel and control panel allow for the management of all operating parameters (start / stop, speed adjustment, hydraulic pressure adjustment, etc.) from one point; this reduces the need for highly specialized operators and lowers the possibility of human error. 7. Improved surface quality and dimensional accuracy: Accurate tool fixation in the collet, uniform shaft rotation, and reduced torque fluctuations enable the production of higher quality surfaces and tighter tolerances; this advantage is especially evident in operations that require a good finish and repeatable accuracy. 8. Safety and reduced risk of hydraulic leaks: The design of short, restrained and protected hydraulic paths, along with a reduction in the number of external connections, reduces the possibility of oil leaks and related accidents; also, centralized access to serviceable components increases the safety of maintenance and repair operations. 9. Adaptability to various tools and materials: The designed collet and shaft allow the use of various tools and compatibility with a variety of materials (various metals, alloys, and some engineering materials); this flexibility expands the application of the device in production lines with variable needs. 10. Capable of continuous operation in heavy industrial environments: The use of high-capacity industrial components, proper cooling design of the power unit, and reinforced mechanical structure make the device suitable for long-term operation in heavy working conditions and continuous production lines, a situation that is not possible in many partial or add-on systems. Description of at least one implementation method for implementing the invention The implementation method of the present plan is based on the coordinated interaction between the hydraulic system, the power transmission section, the tool holder assembly and the electronic control system and is designed in such a way that the operator can perform the turning operation with high accuracy and stability with minimal direct intervention and without the need for complex settings. The process of using the machine begins with the activation of the central control system, in which the operator turns on the electrical panel and the inverter enters the standby mode. At this stage, all the protective circuits, control elements and status sensors are in a stable state and the system is prepared to receive the user command. After the machine is in the ready state, the operator activates the hydraulic power unit so that the hydraulic pump produces the high-pressure oil flow required by the hydromotor. The produced oil is transferred to the hydromotor through the restrained paths and high-pressure connections, and the hydromotor forms the initial rotational motion in response to this flow.This motion is then fed to the gearbox, which converts the speed and torque to the appropriate value for the turning operation based on the selected ratio. At this stage, the operator can accurately determine the spindle speed by changing the inverter settings and prepare the conditions for starting the turning operation. After adjusting the speed, the turning tool is installed in the spindle collet and secured with the precise collet locking system. The collet is designed so that the tool is perfectly centered with the axis of rotation, reducing the possibility of backlash or vibration. Once the tool is properly secured, the operator places the workpiece in the appropriate position relative to the tool and, depending on the type of operation, the initial loading of the tool to the workpiece begins. When the cutting process begins, the inverter continuously controls the motor speed, preventing sudden changes in speed and keeping the shaft speed constant even in the event of a momentary increase in load. This control behavior ensures the stability of the machined surface and the final quality of the part.During operation, the hydraulic oil flow continues to flow steadily from the power unit to the hydromotor, and the power unit cooling system also maintains the thermal conditions within the standard range. The uniformity of the hydraulic pressure allows the output torque of the hydromotor to remain unfluctuating and the gearbox to transmit the motion to the shaft with high efficiency. This coordination between the three hydraulic parts, power transmission and tool holder, allows for uniform, non-stop machining with high dimensional accuracy. Increasing or decreasing the tool load, changing the rotation speed or stopping the operation can all be done through central control. At the end of the operation, the operator reduces the speed and with the stop command, first removes the motor inverter from the circuit and then turns off the power unit. After the hydraulic pressure is discharged and the shaft stops completely, the tool is removed from the collet and the machine is ready to perform the next operation.This work cycle is designed to ensure power, speed, torque, and operator safety simultaneously, allowing the user to perform precise, repeatable, and stable turning operations without having to deal with complex settings. Explicit mention of the industrial application of the invention The present design, as an integrated lathe with integrated hydraulic, mechanical and electronic systems, has a clear and completely practical position in various industries and its operational capability in small, medium and large production environments can be clearly proven. The functional nature of this machine, which is based on creating stable rotational motion, precise speed and torque control, uniform power transmission and rigid tooling, makes it suitable for a wide range of turning tasks in the industry and well meets the needs of production lines in the field of machining metals and engineering materials. Due to the integration of drive, power transmission and control systems, this machine is used in metal parts manufacturing workshops, automotive industries, hydraulic and pneumatic equipment, parts manufacturing, industrial machinery manufacturing, mold workshops, oil and gas industries and complexes related to reverse engineering and custom manufacturing.The ability to create stable and uniform speed even under momentary loads allows the machine to perform reliably in sensitive operations such as precision turning of shafted parts, surface preparation for precision assemblies, production of rotating parts, final polishing, and retouching of parts. Since the machine works without the need for several separate driving forces and without the use of several tooling units or power transmission systems, it is also suitable for use in environments with space or infrastructure limitations. Small and medium-sized industries that do not have the possibility of deploying several separate machines can use this integrated machine to perform an important part of their turning operations. In addition, the robust structure and selection of high-capacity industrial parts make the machine suitable for continuous and long-term work in production centers with consecutive work shifts and therefore it is also applicable to continuous production lines. In terms of scope of application, the ability to use various turning tools in the spindle collet makes the machine applicable for light, medium and heavy operations. Therefore, machine-building industries, industrial valve production workshops, power transmission axis manufacturers, cylindrical part manufacturers and groups that require high precision and uniform finish can rely on this machine to meet an important part of their machining needs.The power unit's thermal resistance and hydraulic pressure stability also enable the device to be used in harsh industrial environments. In general, the present design meets all the necessary criteria for industrial use and has direct and practical application in industries related to metal turning, precision parts manufacturing, repair and maintenance of industrial equipment, tool and machinery manufacturing, and any field where rotary machining operations are necessary. Brief description of the invention The present design is an integrated lathe in which a set of hydraulic, mechanical and electronic components are designed in a coordinated and coaxial manner in the form of a single system to provide accurate, stable and controllable rotary motion for the lathe tool. In this machine, power is generated by the hydraulic power unit and this power is converted into rotary motion through the hydromotor. The output of the hydromotor enters the gearbox and after adjusting the speed and torque, it is transmitted to the main shaft. The lathe shaft is located directly along the output of the gearbox and the spindle collet connected to it is responsible for holding the tool with high rigidity and precision. The control of the shaft rotation speed and functional coordination of the system are carried out through the inverter and the central electrical panel so that the speed, torque and working conditions of the spindle remain constant throughout all machining stages. Combining these components in a compact, aligned structure ensures power transmission without loss, oscillation, or destructive vibration, and the machine is able to perform turning operations with high-level quality, precise dimensional tolerances, and stability under varying loads.This integrated design, in addition to increasing efficiency and reducing component wear, has simplified the operating process and reduced the need for independent peripheral equipment. The presented device has direct and practical application in various industries related to metal machining and the production of rotating parts due to its stable performance, uniform output power, and precise controllability.

Claims

Claim What is claimed: Claim 1) An integrated lathe with the aim of creating stable, precise and controllable rotary motion for a lathe tool, including: a main shaft used to directly transmit torque and create a uniform axis of rotation, and to ensure stable operation of the spindle due to its ability to withstand axial and radial loads and maintain precise concentricity; a spindle collet used to stabilize the lathe tool and accurately transmit rotary motion; a power transmission gearbox used to adjust the speed and torque output ratio of the hydraulic motor and to play a key role in the efficiency of the machine due to its ability to create uniform motion and control mechanical shocks; a hydraulic motor that is responsible for converting hydraulic power into rotary motion to produce spindle rotation; a hydraulic power unit that produces the high-pressure oil flow required by the hydraulic motor and ensures continuous and reliable operation of the drive system due to its ability to provide uniform flow rate and stable pressure; High-pressure hoses and fittings that perform the task of transferring flow safely and without pressure lossoil and maintain the stability of the hydraulic circuit due to its resistance to pressure and vibration; the inverter is used to control the shaft rotation speed, adjust acceleration, and stabilize the spindle performance, and plays a fundamental role in the accuracy of the turning operation by preventing speed fluctuations and providing a soft start; and the electrical panel is responsible for the central control of the machine and enables centralized management of the overall system due to the integration of operational commands, safety, and operator convenience. Claim 2) A device according to claim 1, wherein said components are coaxially engineered and installed in a specific mechanical arrangement, such that the hydraulic power unit is located in the lower part of the device to reduce vibration transmission and transmits high-pressure oil flow through restrained paths to the hydraulic motor. The hydraulic motor is installed exactly along the input of the gearbox so that torque is transmitted to the gearbox without angular deviation. The gearbox is located coaxially with the shaft and its output is directly fed into the main shaft. The shaft is positioned in precision bearings and the spindle collet is placed at its end so that the tool is fixed at the closest distance to the drive axis. The electrical panel and inverter are installed on the side or top to facilitate operator access and control of speed, torque and operating conditions of the device from one point. So that by activating the electrical panel and turning on the power unit, the oil flow is directed to the hydraulic motor and the hydraulic motor produces a rotary motion. This motion is adjusted through the gearbox and transmitted to the shaft with the appropriate torque and speed.Rotate the collet shaft and the turning tool starts to remove material with uniform rotation. The inverter stabilizes the speed and acceleration in all stages.

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