A servo-hydraulic fast-response double platform structure

Abstract

The utility model relates to double work platform technical field, the utility model discloses a kind of servo liquid control's quick response type double platform structure, comprising: base;First movable platform mechanism, first movable platform mechanism includes first linear driver, first moving stage and first electronic ruler, first linear driver is located on base, first linear driver drives first moving stage to move, first electronic ruler includes first detection seat and first detection rod, first detection seat is located on base, first detection rod is set on moving stage, first detection seat includes first detection hole, first detection rod extends into first detection hole and slides along first detection hole. first linear driver drives first moving stage to move, and the position of first moving stage is detected in real time using first electronic ruler, the sliding fit of first detection rod and first detection hole can provide stable orientation for position detection.

Description

Technical Field

[0001] This utility model relates to the field of dual working platform technology, and in particular to a fast-response dual-platform structure with servo hydraulic control. Background Technology

[0002] Hydraulic presses, as core industrial forming equipment, play a crucial role in forging, stamping, and other production scenarios. Currently, employing dual moving worktables to achieve rapid die changing has become a mainstream technical solution for improving equipment efficiency. However, such equipment still faces significant challenges in practical applications: traditional stop control methods (such as relying on photoelectric sensors) are susceptible to environmental interference and mechanical inertia, making it difficult to guarantee the stopping accuracy of the displacement worktable; furthermore, the long-term reliability of electrical components is insufficient, directly affecting production rhythm and equipment maintenance costs. The purpose of this utility model is to provide a novel dual-platform structure that combines a servo hydraulic control system with a material ejector assembly to improve the precise positioning, operational stability, and anti-interference capability of the moving worktable, thereby meeting the needs of high-precision, high-efficiency continuous production. Utility Model Content

[0003] The present invention aims to improve at least one technical problem in the background art.

[0004] This utility model provides a fast-response dual-platform structure for servo hydraulic control, including: Base; The first movable platform mechanism includes a first linear actuator, a first moving stage, and a first electronic ruler. The first linear actuator is mounted on the base and drives the first moving stage to move. The first electronic ruler includes a first detection seat and a first detection rod. The first detection seat is mounted on the base, and the first detection rod is mounted on the moving stage. The first detection seat includes a first detection hole, and the first detection rod extends into the first detection hole and slides along the first detection hole.

[0005] The beneficial effects of this utility model are as follows: the first linear driver drives the first moving stage to move, and the first electronic ruler is used to detect the position of the first moving stage in real time. The sliding cooperation between the first detection rod and the first detection hole can provide stable guidance for position detection, thereby improving the position detection accuracy during the movement of the first moving stage, and thus improving the accuracy of the moving worktable in stopping.

[0006] As a sub-solution of the above technical solution, the fast-response dual-platform structure further includes a lifting mechanism. The lifting mechanism includes a movable push rod. The base has a first inner push rod hole for the lifting mechanism to extend from, and the first moving platform has a first outer push rod hole. Both the first inner and first outer push rod holes are used for the push rod to extend from. By adding a lifting mechanism, the push rod can extend through the first inner and first outer push rod holes, realizing the lifting operation of the workpiece carried on the first moving platform. This enriches the functionality of the dual-platform structure, meets more working condition requirements, and the first inner and first outer push rod holes provide stable motion guidance for the push rod, helping to improve the stability and reliability of the lifting operation.

[0007] As a sub-solution of the above technical solution, the lifting mechanism includes a jacking assembly and a lifting support plate. The lifting support plate is fixedly connected to the base. The jacking assembly includes a second linear actuator and a jacking support plate. The second linear actuator is driven by the jacking support plate, and the jacking rod is mounted on the jacking support plate. The lifting support plate provides a stable mounting base for the jacking assembly. The second linear actuator drives the jacking rod through the jacking support plate, making the transmission of lifting power smoother, which helps to improve the response speed and operational stability of the lifting action, and further improves the overall operating efficiency of the structure.

[0008] As a sub-solution of the above technical solution, the lifting mechanism further includes a lifting-off assembly. The lifting-off assembly includes a third linear actuator, a lifting rod, and a lifting-off support plate. The third linear actuator is mounted on the lifting support plate and is drivenly connected to it. The lifting rod is mounted on the lifting support plate. The base has a second inner lifting rod hole, and the first moving platform has a second outer lifting rod hole. Both the second inner and outer lifting rod holes are used for the lifting rod to extend. Adding the lifting-off assembly enables additional lifting functions, expanding the application scenarios of the equipment. The third linear actuator drives the lifting rod through the lifting support plate, and the second inner and outer lifting rod holes provide precise motion guidance for the lifting rod, helping to improve the positional accuracy and motion stability of the lifting operation and enhancing the multi-functional adaptability of the equipment.

[0009] As a sub-solution of the above technical solution, the lifting mechanism further includes a second electronic ruler. The second electronic ruler includes a second detection seat and a second detection rod. The second detection seat is fixed to the lifting support plate and includes a second detection hole. The second detection rod slides along the second detection hole and is fixedly connected to the lifting support plate. The second electronic ruler enables real-time detection of the position of the lifting support plate, thereby accurately obtaining the lifting height of the lifting rod. This provides an accurate basis for position control of the lifting action, effectively improving the accuracy of lifting height adjustment and enhancing the controllability of the lifting operation.

[0010] As a sub-solution of the above technical solution, the first active platform mechanism further includes a first mounting base and a fixing member. The first mounting base is mounted on the first movable stage, and the fixing member is fixedly connected to the first mounting base. The first detection rod is fixed to the first mounting base by the fixing member. The first mounting base and the fixing member provide a stable mounting carrier for the first detection rod, making the connection between the first detection rod and the first movable stage more reliable, reducing the positional displacement of the detection rod during the movement of the first movable stage, helping to maintain the accuracy of position detection, and also facilitating the installation and subsequent maintenance of the detection rod.

[0011] As a sub-solution of the above technical solution, the fixing component includes a first screw hole, and the end of the first detection rod facing the fixing component is provided with threads, which are threadedly connected to the first screw hole. Using a threaded connection to connect the first detection rod to the fixing component not only simplifies the structure and facilitates installation, but also makes it easy to adjust and replace the first detection rod. Furthermore, the threaded connection provides good tightness, reducing loosening of the detection rod during equipment operation and further improving the stability of position detection.

[0012] As a sub-solution of the above technical solution, the end of the fixing member away from the first screw hole is provided with a second thread, and a first fixing nut and a second fixing nut are threaded onto the second thread. The first mounting base is provided with a through hole, and the first fixing nut and the second fixing nut are respectively located at both ends of the through hole. The first fixing nut and the second fixing nut together clamp the first mounting base to fix the fixing member. The double-nut clamping structure of the first fixing nut and the second fixing nut significantly improves the connection firmness between the fixing member and the first mounting base, effectively reduces the impact of equipment vibration on the position of the fixing member, reduces the positional offset of the detection rod, thereby ensuring the stability of the position detection accuracy, and also enhances the vibration resistance and durability of the overall structure.

[0013] As a sub-solution of the above technical solution, the through hole is an oblong hole. Setting the through hole as an oblong hole provides a certain adjustment space for the installation position of the fixing component, making it easier for operators to adjust the position of the first detection rod according to actual installation needs and detection accuracy requirements. This improves the flexibility and adaptability of the detection rod installation and reduces the difficulty of installation and debugging.

[0014] As some sub-solutions of the above technical solutions, the first linear actuator, the second linear actuator, and / or the third linear actuator are servo cylinders. Selecting servo cylinders as the first, second, and / or third linear actuators offers advantages such as fast response speed, high control precision, and strong load-bearing capacity. When applied to various linear drive components, servo cylinders can further improve the overall structural response speed and operational stability. Simultaneously, their strong load-bearing capacity and wear resistance help enhance the structural durability and better adapt to the demands of heavy-duty operating conditions. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of a fast-response dual-platform structure for servo-hydraulic control according to the present invention. Figure 2 This is a schematic diagram of the lifting mechanism of this utility model; Figure 3 for Figure 1 A magnified view of a portion of point A in the middle.

[0016] In the attached diagram: 1 - base; 2-First moving platform mechanism; 21-First linear actuator; 22-First moving stage; 221-First external push rod hole; 222-Second external push rod hole; 23-First electronic ruler; 231-First detection seat; 232-First detection rod; 24-First mounting seat; 241-Through hole; 25-Fixing component; 26-First fixing nut; 27-Second fixing nut; 3-Lifting mechanism; 31-Push rod; 32-Push assembly; 321-Second linear actuator; 322-Push support plate; 33-Lifting support plate; 34-Push-off assembly; 341-Third linear actuator; 342-Push-off rod; 343-Push-off support plate; 35-Second electronic ruler; 351-Second detection seat; 352-Second detection rod. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0018] The following is combined with Figures 1 to 3 The embodiments of this utility model are described below.

[0019] This utility model relates to the field of mobile workbench technology, specifically a servo-hydraulic controlled fast-response dual-platform structure, which is mainly used in automated operation scenarios where high workbench positioning accuracy and structural durability are required.

[0020] The fast-response dual-platform structure of this servo-hydraulic control system includes a base 1 and a first movable platform mechanism 2. The first movable platform mechanism 2 includes a first linear actuator 21, a first moving stage 22, and a first electronic scale 23. The first linear actuator 21 is bolted to one side of the upper surface of the base 1. The first moving stage 22 is positioned above the base 1. The output end of the first linear actuator 21 is connected to the first moving stage 22 via a connecting block. The extension and retraction of the first linear actuator 21 drives the first moving stage 22 to reciprocate in the left-right direction. The first electronic scale 23 includes a first detection seat 231 and a first detection rod 232. The first detection seat 231 is fixed to the side of the upper surface of the base 1 away from the first linear actuator 21 by screws. The first detection rod 232 is mounted on the first moving stage 22, and the extension direction of the first detection rod 232 is consistent with the movement direction of the first moving stage 22. The first detection seat 231 has a first detection hole inside. The end of the first detection rod 232 away from the first moving stage 22 extends into the first detection hole. When the first moving stage 22 moves, the first detection rod 232 can slide along the axial direction of the first detection hole. The displacement of the first moving stage 22 can be detected in real time by the first electronic ruler 23, thereby providing data support for the precise positioning of the first moving stage 22.

[0021] Furthermore, the rapid-response dual-platform structure also includes a lifting mechanism 3, which is located below the base 1. The lifting mechanism 3 includes a movable push rod 31. A first inner push rod hole is provided on the base 1 at the position corresponding to the push rod 31, and a first outer push rod hole 221 is provided on the first moving platform 22 at the position corresponding to the first inner push rod hole. The diameters of the first inner push rod hole and the first outer push rod hole 221 are both slightly larger than the diameter of the push rod 31. When a lifting operation is required, the push rod 31 can extend upward through the first inner push rod hole and the first outer push rod hole 221 in sequence to lift the workpiece or supporting components on the first moving platform 22.

[0022] Furthermore, the lifting mechanism 3 includes a jacking assembly 32 and a lifting support plate 33. The lifting support plate 33 is a rectangular plate structure, which is fixedly connected to the lower end face of the base 1 by multiple sets of bolts. The jacking assembly 32 includes a second linear actuator 321 and a jacking support plate 322. The second linear actuator 321 is vertically upward and its bottom is fixedly connected to the lifting support plate 33 by bolts. The output end of the second linear actuator 321 is fixedly connected to the jacking support plate 322. The jacking rods 31 are vertically fixed to the upper end face of the jacking support plate 322, and the number of jacking rods 31 can be set according to the actual lifting requirements. The multiple jacking rods 31 are evenly distributed on the jacking support plate 322 to ensure the uniform transmission of lifting force. When the second linear actuator 321 extends, it can drive the jacking support plate 322 to move upward, thereby driving the jacking rods 31 to complete the lifting action.

[0023] Furthermore, the lifting mechanism 3 also includes a lifting assembly 34, which includes a third linear actuator 341, a lifting rod 342, and a lifting support plate 343. The third linear actuator 341 is also vertically upward, and its cylinder bottom is fixed to the lifting support plate 33 by bolts. The output end of the third linear actuator 341 is fixedly connected to the lower end face of the lifting support plate 343, and the lifting rod 342 is vertically fixed to the upper end face of the lifting support plate 343. A second inner lifting rod hole is provided on the base 1 at the position corresponding to the lifting rod 342, and a second outer lifting rod hole 222 is provided on the first moving platform 22 at the position corresponding to the second inner lifting rod hole. The diameter of the second inner lifting rod hole and the second outer lifting rod hole 222 is slightly larger than the diameter of the lifting rod 342. When the third linear actuator 341 extends, it can drive the lifting support plate 343 to move upward, so that the lifting rod 342 passes through the second inner lifting rod hole and the second outer lifting rod hole 222 in sequence and extends upward to realize the lifting operation.

[0024] Furthermore, the lifting mechanism 3 also includes a second electronic ruler 35, which includes a second detection seat 351 and a second detection rod 352. The second detection seat 351 is fixed to the upper end face of the lifting support plate 33 by screws, and the setting direction of the second detection seat 351 is consistent with the extension and retraction direction of the second linear actuator 321. The interior of the second detection seat 351 is provided with a second detection hole. One end of the second detection rod 352 extends into the second detection hole and can slide along its axial direction. The other end of the second detection rod 352 is fixedly connected to the lower end face of the push support plate 322 by a connector. The displacement of the push support plate 322 can be detected in real time by the second electronic ruler 35, thereby accurately controlling the lifting height of the push rod 31.

[0025] Furthermore, the first movable platform mechanism 2 also includes a first mounting base 24 and a fixing member 25. The first mounting base 24 is an L-shaped plate structure, which is fixedly mounted on the upper edge of the first movable platform 22 by bolts. The fixing member 25 is fixedly connected to the first mounting base 24, and the first detection rod 232 is fixed to the first mounting base 24 by the fixing member 25. To ensure a stable connection between the first detection rod 232 and the first mounting base 24, this utility model also provides the first mounting base 24 and the fixing member 25, which enhances the installation stability of the first detection rod 232 through a double fixing structure.

[0026] Furthermore, the fastener 25 is a cylindrical structure with a first screw hole inside one end. The outer circumferential surface of the first detection rod 232 facing the fastener 25 has threads that are compatible with the first screw hole. The first detection rod 232 is fixedly assembled with the fastener 25 through the threaded connection between the threads and the first screw hole. This connection method is not only convenient to assemble, but also allows the installation length of the first detection rod 232 to be adjusted according to actual needs.

[0027] Furthermore, the outer peripheral surface of the end of the fastener 25 away from the first screw hole is provided with a second thread, and a first fixing nut 26 and a second fixing nut 27 are threaded onto the second thread. A through hole 241 is provided on the first mounting base 24 corresponding to the position of the fastener 25. The end of the fastener 25 away from the first detection rod 232 passes through the through hole 241. The first fixing nut 26 and the second fixing nut 27 are located at the upper and lower ends of the through hole 241, respectively. By tightening the first fixing nut 26 and the second fixing nut 27, they are clamped together to secure the first mounting base 24, thereby achieving a firm fixation between the fastener 25 and the first mounting base 24 and effectively preventing the fastener 25 from loosening during equipment operation.

[0028] Furthermore, the through hole 241 is configured as an oblong hole, the length direction of which is perpendicular to the extension direction of the first detection rod 232. When installing the fixing member 25, the position of the fixing member 25 can be finely adjusted along the length direction of the oblong hole, thereby adjusting the installation position of the first detection rod 232, which facilitates the calibration of the coaxiality between the first detection rod 232 and the first detection hole and ensures the detection accuracy.

[0029] Furthermore, the first linear actuator 21, the second linear actuator 321, and the third linear actuator 341 all employ servo cylinders. Servo cylinders are characterized by fast response speed, stable power output, and high structural strength, effectively improving the response efficiency and control accuracy of the first moving platform 22's movement, lifting, and lifting actions. They are also highly durable, helping to extend the service life of the entire dual-platform structure. Of course, depending on actual operational needs, some linear actuators can be selected to use servo cylinders, while others can use other types of linear drive components to balance operational performance and cost.

[0030] Both the first electronic ruler 23 and the second electronic ruler 35 are linear displacement sensors. They convert mechanical displacement into electrical signals and output them by detecting the relative sliding distance of the detection rod within the detection hole, thereby achieving real-time monitoring of the displacement of the corresponding component. Specifically, the first detection seat 231 of the first electronic ruler 23 is fixed to the base 1, and the first detection rod 232 moves synchronously with the first moving platform 22, so its output electrical signal can directly reflect the real-time displacement of the first moving platform 22. Similarly, the second detection seat 351 of the second electronic ruler 35 is fixed to the lifting support plate 33, and the second detection rod 352 moves synchronously with the pushing support plate 322, so its output electrical signal can directly reflect the real-time lifting height of the pushing support plate 322 (i.e., the pushing rod 31).

[0031] When the first electronic ruler 23 works in conjunction with the servo cylinder, which acts as the first linear actuator 21, the specific process is as follows: When the first moving stage 22 needs to move to a preset target position, the controller sends a drive signal to the first servo cylinder. The piston rod of the first servo cylinder extends or retracts, driving the first moving stage 22 to move along the base 1. During this process, the first moving stage 22 synchronously drives the first detection rod 232 to slide within the first detection hole of the first detection seat 231. The first electronic ruler 23 converts the detected real-time displacement data into an electrical signal and feeds it back to the controller. The controller compares the real-time displacement data with the preset target position data. If there is a deviation, the controller sends an adjustment signal to the first servo cylinder, controlling its piston rod to extend or retract further to compensate for the deviation. When the real-time displacement data matches the target position data, the controller stops sending drive signals to the first servo cylinder, the first servo cylinder stops moving, and the first moving stage 22 accurately stops at the target position. Through this closed-loop collaborative method of "drive-detection-feedback-adjustment," the stopping accuracy of the first moving stage 22 can be improved to a certain extent.

[0032] When the second electronic ruler 35 works in conjunction with the servo cylinder, which acts as the second linear actuator 321, the specific process is as follows: When the push rod 31 needs to be raised to a preset height, the controller sends a drive signal to the second servo cylinder. The piston rod of the second servo cylinder extends, driving the push support plate 322 and the push rod 31 to move upward. During this process, the push support plate 322 simultaneously drives the second detection rod 352 to slide within the second detection hole of the second detection seat 351. The second electronic ruler 35 converts the detected real-time lifting height data into an electrical signal and feeds it back to the controller. The controller compares this real-time height data with the preset target height data. If there is a deviation, the controller sends an adjustment signal to the second servo cylinder, controlling its piston rod to extend further or retract appropriately to compensate for the deviation. When the real-time height data matches the target height data, the controller stops sending drive signals to the second servo cylinder, the second servo cylinder stops moving, and the push rod 31 is stably maintained at the target lifting height. This closed-loop coordination method can improve the control accuracy of the lifting height of the push rod 31 to a certain extent.

[0033] For the servo cylinder that serves as the third linear actuator 341, although no corresponding electronic ruler is directly set during its operation, motion control can be achieved through preset stroke control or by combining with external detection components. If it is necessary to further improve the accuracy of its top-off position, the corresponding displacement detection components can be added to form a closed-loop control, referring to the collaborative method of the first and second electronic rulers 35 and the servo cylinder, in order to meet the requirements of higher precision operation.

[0034] The controller can be a programmable logic controller (PLC), and the model can be selected according to the actual control requirements, such as the Siemens S7-1200 series PLC.

[0035] The preferred embodiments of the present invention have been described in detail above, but the present disclosure is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of the present disclosure.

[0036] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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 utility model.

[0037] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

Claims

1. A fast-response dual-platform structure for servo-hydraulic control, characterized in that: include: Base (1); The first active platform mechanism (2) includes a first linear driver (21), a first moving stage (22) and a first electronic ruler (23). The first linear driver (21) is mounted on the base (1) and drives the first moving stage (22) to move. The first electronic ruler (23) includes a first detection seat (231) and a first detection rod (232). The first detection seat (231) is mounted on the base (1) and the first detection rod (232) is mounted on the moving stage. The first detection seat (231) includes a first detection hole and the first detection rod (232) extends into the first detection hole and slides along the first detection hole.

2. The fast-response dual-platform structure for servo hydraulic control according to claim 1, characterized in that: The fast-response dual-platform structure also includes a lifting mechanism (3), which includes a movable push rod (31). The base (1) is provided with a first inner push rod hole for the lifting mechanism (3) to extend out, and the first moving platform (22) is provided with a first outer push rod hole (221). Both the first inner push rod hole and the first outer push rod hole (221) are used for the push rod (31) to extend out.

3. The fast-response dual-platform structure for servo hydraulic control according to claim 2, characterized in that: The lifting mechanism (3) includes a jacking assembly (32) and a jacking support plate (33). The jacking support plate (33) is fixedly connected to the base (1). The jacking assembly (32) includes a second linear driver (321) and a jacking support plate (322). The second linear driver (321) is drivenly connected to the jacking support plate (322). The jacking rod (31) is disposed on the jacking support plate (322).

4. The fast-response dual-platform structure for servo hydraulic control according to claim 3, characterized in that: The lifting mechanism (3) further includes a lifting assembly (34), which includes a third linear actuator (341), a lifting rod (342), and a lifting support plate (343). The third linear actuator (341) is mounted on the lifting support plate (33) and is drivenly connected to the lifting support plate (343). The lifting rod (342) is mounted on the lifting support plate (343). The base (1) is provided with a second inner lifting rod hole, and the first moving platform (22) is provided with a second outer lifting rod hole (222). Both the second inner lifting rod hole and the second outer lifting rod hole (222) are used for the lifting rod (342) to extend.

5. The fast-response dual-platform structure for servo hydraulic control according to claim 4, characterized in that: The lifting mechanism (3) further includes a second electronic ruler (35), which includes a second detection seat (351) and a second detection rod (352). The second detection seat (351) is fixed on the lifting support plate (33), and the second detection seat (351) includes a second detection hole. The second detection rod (352) slides along the second detection hole and is fixedly connected to the pushing support plate (322).

6. The fast-response dual-platform structure for servo hydraulic control according to claim 1, characterized in that: The first active platform mechanism (2) further includes a first mounting base (24) and a fixing member (25). The first mounting base (24) is mounted on the first moving platform (22), and the fixing member (25) is fixedly connected to the first mounting base (24). The first detection rod (232) is fixed to the first mounting base (24) through the fixing member (25).

7. The fast-response dual-platform structure for servo hydraulic control according to claim 6, characterized in that: The fastener (25) includes a first screw hole, and the first detection rod (232) has a thread at one end facing the fastener (25), and the thread is threadedly connected to the first screw hole.

8. The fast-response dual-platform structure for servo hydraulic control according to claim 7, characterized in that: The fastener (25) has a second thread at the end away from the first threaded hole. The second thread is threaded with a first fixing nut (26) and a second fixing nut (27). The first mounting base (24) has a through hole (241). The first fixing nut (26) and the second fixing nut (27) are located at the two ends of the through hole (241), respectively. The first fixing nut (26) and the second fixing nut (27) together clamp the first mounting base (24) to fix the fastener (25).

9. The fast-response dual-platform structure for servo hydraulic control according to claim 8, characterized in that: The through hole (241) is a waist-shaped hole.

10. The fast-response dual-platform structure for servo hydraulic control according to claim 3, characterized in that: The first linear driver (21), the second linear driver (321) and / or the third linear driver (341) are servo cylinders.

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