Servo adjustable automated knock-out system

Abstract

The utility model discloses a kind of servo adjustable automation lower ejection systems, it is related to forging equipment technical field, including power transmission adjusting assembly, ejecting execution component, control system and sensor component, power transmission adjusting assembly is used to realize the servo adjustment of ejecting height, ejecting execution component is used to execute workpiece ejecting action, control system is used to intelligently control to system operation, sensor component is used to acquire the state parameter of system operation, power transmission adjusting assembly includes servo motor, speed reducer, driving gear, driven gear, gear cover, threaded rod, threaded sleeve, short key and long key, the output end of servo motor is connected with the input end of speed reducer, the output end of speed reducer is connected with driving gear, servo motor is collocated gear transmission with threaded rod, threaded sleeve, the real-time feedback of displacement sensor is combined, so that ejecting height precision is controlled in extremely small range, pressure sensor real-time monitoring and regulation and control cylinder pressure, guarantee ejecting force precision.

Description

Technical Field

[0001] This utility model relates to the field of forging equipment technology, specifically a servo-adjustable automated lower ejection system. Background Technology

[0002] In the forging industry, electric spiral forging presses are commonly used forging equipment. Currently, the devices for ejecting forged workpieces from the die have many problems. Traditional ejection devices mostly use fixed structures or simple mechanical adjustments. Different specifications of workpieces vary greatly in length, weight, etc., making it difficult for existing ejection devices to flexibly adjust to adapt to diverse workpiece requirements. When changing to produce different specifications of workpieces, complex adjustments or even replacements of the ejection device are often required, consuming significant time and manpower and severely impacting production efficiency. In traditional ejection devices, the ejector rod and ejector rod head are often rigidly connected. When facing uneven workpiece surfaces or positional deviations, this can easily cause uneven ejection force, damaging the workpiece or the die. Utility Model Content

[0003] To address the above problems, this utility model provides a servo-adjustable automated lower ejection system, thus solving the aforementioned issues.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a servo-adjustable automated lower ejection system, comprising a power transmission adjustment component, an ejection execution component, a control system, and a sensor component. The power transmission adjustment component is used to realize servo adjustment of the ejection height, the ejection execution component is used to execute the workpiece ejection action, the control system is used to intelligently control the system operation, and the sensor component is used to collect the system operation status parameters.

[0005] Preferably, the power transmission adjustment assembly includes a servo motor, a reducer, a drive gear, a driven gear, a gear sleeve, a threaded rod, a threaded sleeve, a short key, and a long key. The output end of the servo motor is connected to the input end of the reducer, the output end of the reducer is connected to the drive gear, the drive gear meshes with the driven gear, the driven gear is connected to the gear sleeve via a short key, the gear sleeve is connected to the threaded rod via a long key, the threaded rod is threadedly connected to the threaded sleeve, and the threaded sleeve is fixedly installed and connected to the forging press mold.

[0006] Preferably, the ejection actuator includes a base plate, a flange pipe, a hydraulic cylinder, an ejector rod, and an ejector rod head. The flange pipe is installed below the base plate, and the hydraulic cylinder is connected below the flange pipe. A driven gear is installed above the base plate. The ejector rod passes through the middle of the threaded rod, and the lower end of the ejector rod is connected to the hydraulic cylinder. The ejector rod and the ejector rod head are floatingly connected. The upper end of the ejector rod is provided with a cylindrical structure, and the lower end of the ejector rod head is provided with a mating hole. The cylindrical structure is inserted into the mating hole. An elongated circular groove is formed at the corresponding position of the cylindrical structure of the ejector rod and the mating hole of the ejector rod head. A cylindrical pin is inserted into the elongated circular groove to realize the floating connection between the ejector rod and the ejector rod head.

[0007] Preferably, the control system is electrically connected to the servo motor and the hydraulic cylinder, and the control system includes a controller and an operating interface connected to the controller.

[0008] Preferably, the sensor assembly includes a displacement sensor and a pressure sensor, wherein the displacement sensor is used to measure the displacement between the threaded rod and the ejector rod, and the pressure sensor is used to measure the pressure during the ejection process.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. A servo motor, combined with gear transmission and a threaded rod and sleeve, along with real-time feedback from a displacement sensor, ensures extremely precise control of the ejection height. A pressure sensor monitors and adjusts the cylinder pressure in real time, guaranteeing accurate ejection force. This dual precision control effectively reduces workpiece damage caused by ejection deviation, significantly improving product yield. The power transmission adjustment component allows for flexible adjustment of the ejection height, and the adjustable cylinder ejection force adapts to the ejection requirements of various workpiece specifications and materials. This eliminates the need for frequent equipment changes, shortens production preparation time, and reduces equipment investment and maintenance costs.

[0010] 2. The floating connection structure between the ejector rod and the ejector rod head, with its cylindrical structure, mating holes, elongated grooves, and cylindrical pins, can adapt to uneven workpiece surfaces or positional deviations, avoiding rigid impacts and ensuring uniform distribution of ejection force. This protects the appearance and structural integrity of the workpiece, reduces mold wear, and extends equipment lifespan. The control system, centered on a controller and equipped with an interface, allows operators to easily input ejection parameters such as height and force, achieving automated control of the servo motor and hydraulic cylinder. Sensor components provide real-time feedback of displacement and pressure data, forming a closed-loop control system that significantly improves operational efficiency and reduces errors and labor intensity caused by manual intervention. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the power transmission adjustment component of this utility model; Figure 3This is a schematic diagram of the ejection actuator and sensor assembly of this utility model.

[0012] The diagram is labeled as follows: 1. Power transmission adjustment assembly; 2. Ejection actuator assembly; 3. Control system; 4. Sensor assembly; 11. Servo motor; 12. Reducer; 13. Drive gear; 14. Driven gear; 15. Gear sleeve; 16. Threaded rod; 17. Threaded sleeve; 18. Short key; 19. Long key; 21. Base plate; 22. Flange pipe; 23. Hydraulic cylinder; 24. Ejector rod; 25. Ejector rod head; 26. Cylindrical pin; 240. Cylindrical structure; 250. Mating hole; 260. Long circular groove; 41. Displacement sensor; 42. Pressure sensor. Detailed Implementation

[0013] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0014] Please see Figure 1 , Figure 2 and Figure 3 A servo-adjustable automated ejection system includes a power transmission adjustment component 1, an ejection execution component 2, a control system 3, and a sensor component 4. The power transmission adjustment component 1, leveraging the advantages of servo drive and precision transmission, achieves servo adjustment of the ejection height, solving the problems of low height adjustment accuracy and poor flexibility in traditional ejection systems. Through the coordinated operation of a servo motor 11, a reducer 12, a drive gear 13, a driven gear 14, a gear sleeve 15, a threaded rod 16, a threaded sleeve 17, a short key 18, and a long key 19, the output end of the servo motor 11... Connected to the input end of reducer 12, after being amplified and reduced in speed by reducer 12, its output end drives the drive gear 13 to rotate. The drive gear 13 meshes with the driven gear 14 for transmission. The driven gear 14 drives the gear sleeve 15 to rotate through the short key 18. The gear sleeve 15 then drives the threaded rod 16 to rotate through the long key 19. Since the threaded rod 16 is threadedly connected to the threaded sleeve 17 that is fixed and connected to the forging press mold, the rotation of the threaded rod 16 is converted into precise axial lifting and lowering, making the ejection height adjustment extremely accurate and providing a precise height adaptation basis for ejecting workpieces of different specifications.

[0015] Please see Figure 1 and Figure 2The ejection actuator 2 focuses on performing the workpiece ejection action, solving the problems of poor workpiece adaptability and easy damage to workpieces or molds caused by traditional ejection mechanisms. It includes a base plate 21, a flange pipe 22, a hydraulic cylinder 23, an ejector rod 24, and an ejector rod head 25. The flange pipe 22 installed below the base plate 21 provides a stable mounting support for the hydraulic cylinder 23. The driven gear 14 installed above the base plate 21 ensures the integration of power transmission. The ejector rod 24 passes through the middle of the threaded rod 16, with its lower end connected to the hydraulic cylinder 23. The upper cylindrical structure 240 is inserted into the mating hole 250 at the lower end of the ejector rod head 25. A cylindrical pin 26 is inserted into the elongated circular groove 260 at the corresponding position of the cylindrical structure 240 of the ejector rod 24 and the mating hole 250 of the ejector rod head 25, forming a floating connection structure. This structure allows the ejector rod head 25 to adapt to the unevenness or positional deviation of the workpiece surface, avoid rigid impact, and distribute the ejection force evenly. It can smoothly eject the workpiece and effectively protect the workpiece and the mold. At the same time, the hydraulic cylinder 23 can provide a stable and adjustable ejection force to meet the ejection force requirements of workpieces of different materials.

[0016] Please see Figure 1 , Figure 2 and Figure 3 The control system 3 is used for intelligent control of the system operation, solving the problems of cumbersome manual operation and low control accuracy in traditional ejection systems. It is electrically connected to the servo motor 11 and the hydraulic cylinder 23, and consists of a controller with an operating interface. The operator can input parameters such as ejection height and force through the operating interface, and the controller will then generate precise control signals to regulate the speed and direction of the servo motor 11 and the pressure and extension and retraction of the hydraulic cylinder 23, respectively, realizing the automated and intelligent control of the system and greatly improving operating efficiency and control accuracy. Sensor assembly 4 is used to collect the system's operating status parameters, solving the problem of traditional ejection systems lacking real-time status monitoring and being prone to abnormal operating conditions. It includes a displacement sensor 41 and a pressure sensor 42. The displacement sensor 41 measures the displacement of the threaded rod 16 and the ejector rod 24 in real time and feeds the data back to the control system 3 to achieve closed-loop precise control of the ejection height. The pressure sensor 42 measures the pressure during the ejection process in real time. When the pressure is abnormal, the control system 3 can adjust the output pressure of the hydraulic cylinder 23 in a timely manner to ensure a stable and reliable ejection process. These structures work together to achieve a high-precision, highly adaptable, and highly reliable automated ejection effect: precise adjustment of the power transmission and real-time feedback from sensors ensure accurate control of ejection height and force, significantly improving product qualification rate; the floating structure and adjustable power source of ejection actuator 2 enable it to adapt to ejection of workpieces of various specifications and materials, reducing production changeover costs; the intelligent control system 3 and the monitoring function of sensors enable unmanned and efficient operation, while avoiding damage to equipment and workpieces caused by abnormal working conditions, thus improving the forging production efficiency and quality stability of the electric spiral forging press as a whole.

[0017] When using this utility model: The operator first checks the integrity of the connections of each component in the system—confirming the meshing status of the servo motor 11 and reducer 12, and the drive gear 13 and driven gear 14 in the power transmission adjustment component 1; ensuring the secure installation of the short key 18 and long key 19 to prevent key disengagement or jamming during transmission; checking the floating connection between the push rod 24 and push rod head 25 in the ejection actuator component 2; ensuring the cylindrical pin 26 moves flexibly within the elongated circular groove 260 without jamming; and checking the sealing of the connection between the flange pipe 22 and the base plate 21 and the cylinder 23 to prevent oil leakage or structural loosening during ejection. The operator then starts the control system 3 and performs zero-point calibration and accuracy verification on the displacement sensor 41 and the pressure sensor 42. The displacement sensor 41 must ensure that it can accurately capture the lifting displacement of the threaded rod 16 and the extension stroke of the push rod 24; the pressure sensor 42 must accurately feed back the reference pressure of the cylinder 23 under no-load conditions to avoid control deviations due to sensing errors.

[0018] The floating connection structure between the push rod 24 and the push rod head 25 demonstrates its "impact-resistant" advantage during the inspection phase. The clearance fit design between the elongated circular groove 260 and the cylindrical pin 26 avoids the problems of easy jamming and wear of rigid connections from the source. The calibrability of the sensor ensures the accuracy of subsequent control, solving the pain points of traditional push-out systems such as "no real-time monitoring and error accumulation".

[0019] Through the operation interface of the control system 3, the core parameters are input according to the current specifications of the forging workpiece, such as diameter, height, material (steel, aluminum, alloy, etc.). These parameters include the ejection height (i.e., the target lifting amount that the threaded rod 16 needs to be adjusted), the maximum pressure that the ejection force cylinder 23 needs to output, and the extension and retraction rate of the ejection speed cylinder 23. For example, for thin-walled and easily damaged workpieces, a lower ejection force and a gentler ejection speed can be set. For large-sized and heavy workpieces, the ejection force can be increased and a suitable ejection height can be matched.

[0020] After the parameters are confirmed, the system's automatic self-test program is started. The control system 3 sends test signals to the servo motor 11 and the hydraulic cylinder 23. The servo motor 11 drives the threaded rod 16 to make a small-amplitude lifting and lowering, and the hydraulic cylinder 23 drives the push rod 24 to make a short-stroke extension and retraction. The sensor component 4 provides real-time feedback of displacement and pressure data. The controller verifies whether the response of each component is consistent with the set parameters. If a deviation occurs, an automatic alarm is triggered.

[0021] The intelligent control system solves the problems of "cumbersome manual adjustment and inaccurate parameter matching" in traditional ejection systems. The operation interface is intuitive and easy to understand, and parameters can be set quickly without the need for professional technicians. The self-test program improves the reliability of system operation, avoids workpiece scrapping or equipment damage due to component failure, and reduces production risks.

[0022] After the self-test is passed, the control system 3 sends a height adjustment command to the servo motor 11. The servo motor 11 outputs power, which is reduced and increased in torque by the reducer 12, solving the problem of "insufficient torque and excessive speed" of the servo motor 11 and ensuring smooth transmission. This drives the drive gear 13 to rotate, and the drive gear 13 meshes with the driven gear 14 for transmission. The gear sleeve 15 is driven to rotate synchronously through the short key 18, and the gear sleeve 15 then drives the threaded rod 16 to rotate through the long key 19.

[0023] Since the threaded sleeve 17 is fixed to the forging press mold, the rotation of the threaded rod 16 is converted into axial linear lifting motion. The displacement sensor 41 monitors the lifting displacement of the threaded rod 16 in real time and dynamically feeds the data back to the control system 3. The controller compares the actual displacement with the set ejection height and fine-tunes the speed and direction of the servo motor 11 until the threaded rod 16 reaches the target position, thus completing the precise positioning of the ejection height.

[0024] The combination of servo motor 11, gear transmission, and threaded pair, along with closed-loop control of displacement sensor 41, enables the ejection height adjustment accuracy to reach ±0.01mm, solving the problems of "low accuracy and large repeatability error" in traditional mechanical adjustment. The graded transmission design of long key 19 and short key 18 not only ensures the stability of power transmission and avoids breakage due to excessive force on a single key, but also improves the flexibility of adjustment, adapting to different ejection height requirements from a few millimeters to tens of millimeters, without the need to replace transmission components, thus reducing production changeover costs.

[0025] After the forging press completes the forging of the workpiece, it sends an "ejection trigger signal" to the system. The control system 3 immediately sends a command to the oil cylinder 23. The oil cylinder 23 starts and outputs the set pressure, driving the ejector rod 24 to move upward along the middle axial direction of the threaded rod 16. The cylindrical structure 240 at the upper end of the ejector rod 24 drives the ejector rod head 25 to move upward synchronously, and the ejector rod head 25 contacts the bottom of the workpiece.

[0026] If the workpiece has an uneven surface due to forging deformation, or if there is a slight deviation in the mold positioning, the ejector head 25 can be adaptively adjusted through the floating connection structure. The ejector head 25 can float axially in a small range along the length of the elongated circular groove 260. The clearance fit between the cylindrical pin 26 and the elongated circular groove 260 allows the ejector head 25 to finely adjust its posture, ensuring that the ejector head 25 is fully in contact with the bottom of the workpiece and that the ejection force is evenly distributed on the contact surface of the workpiece.

[0027] During the ejection process, the pressure sensor 42 continuously monitors the output pressure of the hydraulic cylinder 23. If the pressure exceeds the set threshold, such as when the workpiece gets stuck and the resistance increases, the control system 3 immediately reduces the pressure of the hydraulic cylinder 23 and stops ejection to prevent the workpiece from being crushed or the ejector rod 24 from bending. If the pressure is lower than the set value, such as when the workpiece is lightweight and the resistance is insufficient, the pressure is appropriately increased to ensure that the workpiece is smoothly removed from the mold.

[0028] The adjustable and stable ejection force provided by the hydraulic cylinder 23 solves the problem of "fixed ejection force and inability to adapt to different materials" in traditional ejection systems. The pressure can be increased for hard materials and decreased for soft materials, which greatly improves the adaptability of the system. The floating connection structure avoids workpiece deformation and mold wear caused by rigid ejection. It is especially effective in protecting the appearance and dimensional accuracy of precision forgings and reducing the scrap rate. The real-time protection function of the pressure sensor 42 further improves the safety and reliability of the ejection process.

[0029] After the ejector head 25 ejects the workpiece out of the mold, the displacement sensor 41 detects that the ejector 24 has reached the set maximum stroke. The control system 3 sends an "ejection complete" signal, and the hydraulic cylinder 23 drives the ejector 24 to slowly reset. The ejector head 25 returns to the initial position along with the ejector 24.

[0030] After the workpiece is removed, the control system 3 instructs the servo motor 11 to drive the threaded rod 16 to rotate and return to the initial height position, in preparation for the forging and ejection of the next workpiece; at the same time, the sensor assembly 4 records the displacement and pressure data of this ejection and automatically stores them in the system database for subsequent production traceability and parameter optimization.

[0031] If it is necessary to switch to different specifications of workpieces, it is only necessary to modify parameters such as ejection height and ejection force through the operation interface. The system does not require disassembly or replacement of any mechanical components. The servo motor 11 can quickly adjust the lifting amount of the threaded rod 16, the hydraulic cylinder 23 can flexibly adapt to new pressure requirements, and the sensor automatically adapts to the new monitoring range. The entire changeover process only takes 3-5 minutes.

[0032] The system operates automatically throughout the entire process of "preparation-setting-adjustment-ejection-reset", and its advantages of "high precision control, high adaptability and high reliability" are consistently applied: the combination of servo drive and sensor feedback enables precise control of ejection height and force, the floating structure protects the workpiece and mold, intelligent control reduces labor costs and operating difficulty, and multi-specification adaptability improves production flexibility.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A servo-adjustable automated ejection system, characterized in that: It includes a power transmission adjustment component (1), an ejection execution component (2), a control system (3), and a sensor component (4). The power transmission adjustment component (1) is used to realize the servo adjustment of the ejection height. The ejection execution component (2) is used to execute the workpiece ejection action. The control system (3) is used to intelligently control the operation of the system. The sensor component (4) is used to collect the status parameters of the system operation.

2. The servo-adjustable automated ejection system according to claim 1, characterized in that: The power transmission adjustment assembly (1) includes a servo motor (11), a reducer (12), a drive gear (13), a driven gear (14), a gear sleeve (15), a threaded rod (16), a threaded sleeve (17), a short key (18), and a long key (19). The output end of the servo motor (11) is connected to the input end of the reducer (12). The output end of the reducer (12) is connected to the drive gear (13). The drive gear (13) meshes with the driven gear (14). The driven gear (14) is connected to the gear sleeve (15) via the short key (18). The gear sleeve (15) is connected to the threaded rod (16) via the long key (19). The threaded rod (16) is threadedly connected to the threaded sleeve (17). The threaded sleeve (17) is fixedly installed and connected to the forging press mold.

3. The servo-adjustable automated ejection system according to claim 2, characterized in that: The ejection actuator (2) includes a base plate (21), a flange pipe (22), a hydraulic cylinder (23), an ejector rod (24), and an ejector rod head (25). The flange pipe (22) is installed below the base plate (21), and the hydraulic cylinder (23) is connected below the flange pipe (22). A driven gear (14) is installed above the base plate (21). The ejector rod (24) passes through the middle of the threaded rod (16), and the lower end of the ejector rod (24) is connected to the hydraulic cylinder (23). The ejector rod (24) and the ejector rod head (25) are connected. The top rod (24) is provided with a cylindrical structure (240) at its upper end and a mating hole (250) at its lower end. The cylindrical structure (240) is inserted into the mating hole (250). A long groove (260) is provided at the corresponding position of the cylindrical structure (240) of the top rod (24) and the mating hole (250) of the top rod head (25). A cylindrical pin (26) is inserted into the long groove (260) to realize the floating connection between the top rod (24) and the top rod head (25).

4. The servo-adjustable automated ejection system according to claim 3, characterized in that: The control system (3) is electrically connected to the servo motor (11) and the oil cylinder (23). The control system (3) includes a controller and an operation interface connected to the controller.

5. The servo-adjustable automated ejection system according to claim 1, characterized in that: The sensor assembly (4) includes a displacement sensor (41) and a pressure sensor (42). The displacement sensor (41) is used to measure the displacement between the threaded rod (16) and the push rod (24), and the pressure sensor (42) is used to measure the pressure during the ejection process.

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