Single-drive double-station electric cylinder

Abstract

The utility model relates to the technical field of linear transmission, in particular to a single-drive double-station electric cylinder which comprises a base plate, a drive motor, a linkage assembly, a profile cylinder base, a first transmission assembly and a second transmission assembly. The base plate is provided with a first face and a second face deviating from the first face, the driving motor is arranged on the first face, the driving end penetrates through the first face and extends to the second face, and the linkage assembly is arranged on the second face and used for enabling the driving motor, the first transmission assembly and the second transmission assembly to be in synchronous transmission connection. The profile cylinder base is provided with a first cavity and a second cavity, the first transmission assembly is arranged in the first cavity, and the second transmission assembly is arranged in the second cavity. The driving motors drive the transmission assemblies to move in the respective cavities through the linkage assemblies, and accurate control over the working position can be achieved. And application scenes with high precision requirements on workpiece machining, assembling and the like can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of linear transmission, in particular to a single-drive double-station electric cylinder. Background Art

[0002] Electric cylinders are modular linear actuators that integrate a servo motor and a ball screw, achieving precise control of position, speed, and thrust. They feature fast dynamic response, rapid acceleration, precise control of position, speed, and thrust, ease of use, energy conservation, environmental protection, and virtually maintenance-free operation. Applications for electric cylinders include the automotive industry, testing equipment, metal 3D printing, and stamping. In the automotive industry, electric cylinders are used in equipment such as testers; in the industrial machinery industry, they are used in ceramic machinery, lifting platforms, and more.

[0003] Existing electric cylinders only have a single transmission station. When dual-station drive is required, two sets of electric cylinders must be used. This structure is expensive and also has limitations in assembly and use. Therefore, a new design is needed for the existing electric cylinder structure. Utility Model Content

[0004] To address these issues, the present invention provides a drive motor that, through a linkage assembly, drives the transmission assembly within its respective chambers, enabling precise control of the working position. This precise position control can meet the needs of single-drive, dual-station electric cylinders in applications requiring high precision, such as workpiece machining and assembly.

[0005] The technical solution adopted by the present utility model is: a single-drive double-station electric cylinder, including a base plate, a drive motor, a linkage assembly, a profile cylinder base, a first transmission assembly and a second transmission assembly; the base plate has a first surface and a second surface opposite to the first surface, the drive motor is arranged on the first surface, and the drive end passes through the first surface and extends to the second surface, the linkage assembly is arranged on the second surface, and is used to synchronously drive and connect the drive motor, the first transmission assembly and the second transmission assembly; the profile cylinder base is arranged on the first surface and is located on one side of the first transmission assembly, the profile cylinder base is provided with a first cavity and a second cavity, the first transmission assembly is arranged in the first cavity, and the second transmission assembly is arranged in the second cavity; the drive motor is used to drive the linkage assembly to drive the first transmission assembly to move in the first cavity and the second transmission assembly to move in the second cavity.

[0006] A further improvement to the above solution is that a protective cover is provided on the outside of the second surface of the substrate, and the protective cover is used to cover the linkage assembly.

[0007] A further improvement to the above scheme is that the driving end of the drive motor is provided with a drive gear, and the linkage assembly includes a first driven wheel, a second driven wheel and a third driven wheel, a first synchronous belt transmission connection is provided between the first driven wheel and the driving gear, and a second synchronous belt transmission connection is provided between the second driven wheel and the third driven wheel; the first driven wheel and the second driven wheel are both connected to the first transmission assembly, and one end of the third driven wheel is connected to the second transmission assembly.

[0008] A further improvement to the above solution is that the profile cylinder seat is an aluminum alloy profile seat, and an end cover is provided at the top end of the profile cylinder seat, and the end cover is used to cover the ends of the first cavity and the second cavity.

[0009] A further improvement to the above solution is that at least two first transmission guide sleeves are provided in the first cavity, and the first transmission guide sleeves are used for transmission guidance of the first transmission assembly.

[0010] A further improvement to the above solution is that at least two second transmission guide sleeves are provided in the second cavity, and the second transmission guide sleeves are used for transmission guidance of the second transmission assembly.

[0011] A further improvement to the above scheme is that the first transmission assembly includes a first transmission mounting plate, a first transmission screw, a first transmission nut and a first transmission shaft, the first transmission mounting plate is arranged at one end of the first cavity, one end of the first transmission screw is rotatable and passes through the first transmission mounting plate to be connected to the linkage assembly; the first transmission nut is arranged on the first transmission screw, and one end of the first transmission nut is connected to the first transmission shaft; the first transmission screw is used to drive the first transmission nut axially to drive the first transmission shaft to slide along the first transmission guide sleeve.

[0012] A further improvement to the above scheme is that the second transmission assembly includes a second transmission mounting plate, a second transmission screw, a second transmission nut and a second transmission shaft, the second transmission mounting plate is arranged at one end of the second cavity, one end of the second transmission screw is rotatable and passes through the second transmission mounting plate to be connected to the linkage assembly; the second transmission nut is arranged on the second transmission screw, and one end of the second transmission nut is connected to the second transmission shaft; the second transmission screw is used to drive the second transmission nut axially to drive the second transmission shaft to slide along the second transmission guide sleeve.

[0013] A further improvement to the above solution is that a first thread groove is provided on the first transmission screw, and the first transmission nut slides along the first thread groove; a second thread groove is provided on the second transmission screw, and the second transmission nut slides along the second thread groove.

[0014] A further improvement to the above solution is that the thread directions of the first thread groove and the second thread groove are opposite.

[0015] A further improvement to the above solution is that a first connecting end is provided at one end of the first transmission shaft that is away from the first transmission nut; and a second connecting end is provided at one end of the second transmission shaft that is away from the second transmission nut.

[0016] The beneficial effects of the utility model are:

[0017] Compared to existing electric cylinders, this new design utilizes a single-drive, dual-station design, using a single drive motor to simultaneously drive the first and second transmission assemblies within their respective cavities. Compared to traditional dual-cylinder solutions, this eliminates one motor and associated transmission components, saving space and cost. A linkage assembly is positioned on the second side of the electric cylinder and provides synchronous transmission connections with the drive motor, the first transmission assembly, and the second transmission assembly. This allows the linkage assembly to precisely transmit driving force to both transmission assemblies, enabling them to move simultaneously within their respective cavities, achieving synchronized motion.

[0018] The first transmission assembly and the second transmission assembly of the utility model are respectively arranged in the first cavity and the second cavity of the profile cylinder base. Such a design enables the transmission assembly to better cooperate with the profile cylinder base, reduce friction and energy loss, and improve the efficiency and accuracy of the transmission. The single-drive double-station electric cylinder solution has high flexibility and reliability. By adjusting the design of the linkage assembly and the transmission assembly, different working modes and motion paths can be achieved. At the same time, the solution adopts a simplified structure, reduces the number of components and the complexity of mutual coordination, and improves the reliability and stability of the system. The drive motor drives the transmission assembly to move in its respective cavity through the linkage assembly, which can achieve precise control of the working position. This precise position control can meet application scenarios with high precision requirements such as workpiece processing and assembly.

[0019] The utility model can meet the needs of the industrial automation field for efficient, precise and reliable motion control through technical effects such as space and cost saving, synchronous transmission connection, efficient transmission mechanism, flexibility and reliability, and precise position control. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional schematic diagram of a single-drive double-station electric cylinder of the utility model;

[0021] Figure 2 for Figure 1 A three-dimensional schematic diagram of the single-drive double-station electric cylinder from another perspective;

[0022] Figure 3 for Figure 1 Schematic diagram of the internal structure of the single-drive double-station electric cylinder.

[0023] Explanation of the accompanying drawings: base plate 1, protective cover 11, drive motor 2, drive gear 21, linkage assembly 3, first driven wheel 31, second driven wheel 32, third driven wheel 33, first synchronous belt 34, second synchronous belt 35, profile cylinder base 4, first cavity 41, first transmission guide sleeve 411, second cavity 42, second transmission guide sleeve 421, first transmission assembly 5, first transmission mounting plate 51, first transmission screw 52, first thread groove 521, first transmission nut 53, first transmission shaft 54, first connecting end 541, second transmission assembly 6, second transmission mounting plate 61, second transmission screw 62, second thread groove 621, second transmission nut 63, second transmission shaft 64, second connecting end 641. DETAILED DESCRIPTION

[0024] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to facilitate a more thorough and comprehensive understanding of the disclosure of the present invention.

[0025] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0027] like Figures 1 to 3As shown, one embodiment of the present invention relates to a single-drive dual-station electric cylinder, comprising a base plate 1, a drive motor 2, a linkage assembly 3, a profile cylinder base 4, a first transmission assembly 5, and a second transmission assembly 6. The base plate 1 has a first surface and a second surface opposite the first surface. The drive motor 2 is disposed on the first surface, with its drive end passing through the first surface and extending to the second surface. The linkage assembly 3 is disposed on the second surface and is used to synchronously drive the drive motor 2, the first transmission assembly 5, and the second transmission assembly 6. The profile cylinder base 4 is disposed on the first surface and located on one side of the first transmission assembly 5. The profile cylinder base 4 is provided with a first cavity 41 and a second cavity 42. The first transmission assembly 5 is disposed within the first cavity 41, and the second transmission assembly 6 is disposed within the second cavity 42. The drive motor 2 is used to drive the linkage assembly 3 to drive the first transmission assembly 5 to move within the first cavity 41 and the second transmission assembly 6 to move within the second cavity 42. This embodiment adopts a single-drive dual-station design, with a single drive motor 2 simultaneously driving the first transmission assembly 5 and the second transmission assembly 6 to move within their respective cavities. Compared to traditional dual-electric cylinder solutions, this eliminates one motor and associated transmission components, saving space and cost. The linkage assembly 3 is located on the second side of the electric cylinder and forms a synchronous transmission connection with the drive motor 2, the first transmission assembly 5, and the second transmission assembly 6. Thus, driven by the drive motor 2, the linkage assembly 3 precisely transmits the driving force to the two transmission assemblies, enabling them to move simultaneously within their respective cavities, achieving synchronized motion.

[0028] The first transmission assembly 5 and the second transmission assembly 6 of the above embodiment are respectively arranged in the first cavity 41 and the second cavity 42 of the profile cylinder base 4. Such a design enables the transmission assembly to better cooperate with the profile cylinder base 4, reduce friction and energy loss, and improve the efficiency and accuracy of the transmission. The single-drive double-station electric cylinder solution has high flexibility and reliability. By adjusting the design of the linkage assembly 3 and the transmission assembly, different working modes and motion paths can be achieved. At the same time, the solution adopts a simplified structure, which reduces the number of components and the complexity of mutual coordination, and improves the reliability and stability of the system. The drive motor 2 drives the transmission assembly to move in its respective cavity through the linkage assembly 3, which can achieve precise control of the working position. This precise position control can meet application scenarios with high precision requirements such as workpiece processing and assembly.

[0029] This embodiment can meet the needs of the industrial automation field for efficient, precise and reliable motion control through technical effects such as space and cost saving, synchronous transmission connection, efficient transmission mechanism, flexibility and reliability, and precise position control.

[0030] A protective cover 11 is provided on the outside of the second surface of the substrate 1, and the protective cover 11 is used to cover the linkage assembly 3. In this embodiment, the protective cover 11 protects the linkage assembly 3, ensures safety, and facilitates maintenance after disassembly.

[0031] The drive end of the drive motor 2 is provided with a drive gear 21. The linkage assembly 3 includes a first driven wheel 31, a second driven wheel 32, and a third driven wheel 33. A first synchronous belt 34 is provided between the first driven wheel 31 and the drive gear 21, and a second synchronous belt 35 is provided between the second driven wheel 32 and the third driven wheel 33. The first driven wheel 31 and the second driven wheel 32 are both connected to the first transmission assembly 5, and one end of the third driven wheel 33 is connected to the second transmission assembly 6. In this embodiment, the drive end of the drive motor 2 is provided with a drive gear 21. The drive gear 21 is connected to the first driven wheel 31 via a first synchronous belt 34, and the second driven wheel 32 is connected to the third driven wheel 33 via a second synchronous belt 35. This synchronous transmission design ensures that the rotational motion of the drive gear 21 is accurately transmitted to the first and third driven wheels 31, achieving precise synchronous motion. The synchronous belt transmission connection provides a more efficient transmission effect. The synchronous belt offers excellent transmission efficiency and low friction loss, improving the efficiency of the entire transmission system and reducing energy loss. Both the first and second driven pulleys 31, 32 are connected to the first transmission assembly 5, while one end of the third driven pulley 33 is connected to the second transmission assembly 6. This structural design evenly distributes transmission force across both transmission assemblies, ensuring smooth operation. Furthermore, the design of the linkage assembly 3 effectively reduces vibration and shock during transmission, improving system stability and operational performance.

[0032] The profile cylinder base 4 is an aluminum alloy profile base, and an end cover 43 is provided at the top end of the profile cylinder base 4. The end cover 43 is used to cover the ends of the first cavity 41 and the second cavity 42. In this embodiment, the profile cylinder base 4 is made of an aluminum alloy profile base, which has high strength and rigidity. This structure can provide good support and stability, ensuring the stable operation of the entire electric cylinder system. An end cover 43 is provided at the top end of the profile cylinder base 4, which is used to cover the ends of the first cavity 41 and the second cavity 42. The setting of the end cover 43 can effectively seal the cavity, and the good sealing performance enables the electric cylinder system to work stably. The design of the end cover 43 makes the cavity inside the electric cylinder easy to inspect and maintain.

[0033] At least two first transmission guide sleeves 411 are provided in the first cavity 41, and the first transmission guide sleeves 411 are used for transmission guidance of the first transmission component 5. Specifically, at least two second transmission guide sleeves 421 are provided in the second cavity 42, and the second transmission guide sleeves 421 are used for transmission guidance of the second transmission component 6. In this embodiment, at least two first transmission guide sleeves 411 are provided in the first cavity 41, which are used for transmission guidance of the first transmission component 5. Similarly, at least two second transmission guide sleeves 421 are provided in the second cavity 42, which are used for transmission guidance of the second transmission component 6. This design can ensure that the transmission component has good guidance during movement, avoid deviation and swing, and achieve precise transmission effect. By increasing the number of transmission guide sleeves, the stability of the entire transmission system can be improved. The provision of multiple transmission guide sleeves can disperse the points of application of the transmission force, reduce the vibration and impact caused by uneven transmission force, and thus improve the stability and working effect of the system.

[0034] The first transmission assembly 5 includes a first transmission mounting plate 51, a first transmission screw 52, a first transmission nut 53 and a first transmission shaft 54. The first transmission mounting plate 51 is arranged at one end of the first cavity 41, and one end of the first transmission screw 52 is rotatable and passes through the first transmission mounting plate 51 to be connected to the linkage assembly 3; the first transmission nut 53 is arranged on the first transmission screw 52, and one end of the first transmission nut 53 is connected to the first transmission shaft 54; the first transmission screw 52 is used to drive the first transmission nut 53 axially to drive the first transmission shaft 54 to slide along the first transmission guide sleeve 411. Specifically, the second transmission assembly 6 includes a second transmission mounting plate 61, a second transmission screw 62, a second transmission nut 63, and a second transmission shaft 64. The second transmission mounting plate 61 is disposed at one end of the second cavity 42. One end of the second transmission screw 62 is rotatable and passes through the second transmission mounting plate 61 to connect to the linkage assembly 3. The second transmission nut 63 is disposed on the second transmission screw 62, and one end of the second transmission nut 63 is connected to the second transmission shaft 64. The second transmission screw 62 is used to drive the second transmission nut 63 axially to drive the second transmission shaft 64 to slide along the second transmission guide sleeve 421. In this embodiment, the first transmission assembly 5 includes a first transmission mounting plate 51, a first transmission screw 52, a first transmission nut 53, and a first transmission shaft 54. The second transmission assembly 6 includes a second transmission mounting plate 61, a second transmission screw 62, a second transmission nut 63, and a second transmission shaft 64. These components achieve precise transmission control by interconnecting and cooperating with each other. The first transmission screw 52 drives the first transmission nut 53 axially, thereby driving the first transmission shaft 54 to slide along the first transmission guide sleeve 411. Similarly, the second transmission screw 62 drives the second transmission nut 63 axially, thereby driving the second transmission shaft 64 to slide along the second transmission guide sleeve 421. This structural design ensures accurate and reliable transmission, meeting the transmission precision requirements of the industrial automation field. By driving the motor 2 to control the rotation of the first and second transmission screws 52, 62, stable motion control of the first and second transmission shafts 54, 64 can be achieved. The design of the transmission assembly ensures uniform transmission force distribution, reduces vibration and impact, and improves system stability and operating efficiency.

[0035] The first transmission screw 52 is provided with a first thread groove 521, along which the first transmission nut 53 slides. The second transmission screw 62 is provided with a second thread groove 621, along which the second transmission nut 63 slides. Specifically, the first and second thread grooves 521 and 621 have opposite thread directions. In this embodiment, the first and second thread grooves 521 and 621 are provided on the first transmission screw 52 and 62, respectively, and the thread directions of these two thread grooves are opposite. This design allows the first and second transmission nuts 53 and 63 to slide in opposite directions during transmission. This opposite transmission direction enables synchronous, counter-rotating motion of two workstations in the electric cylinder system. Because the first and second transmission nuts 53 and 63 slide along opposite thread grooves, the transmission force is evenly distributed, reducing vibration and impact caused by uneven transmission force. This design enhances the stability and balance of the entire electric cylinder system, improving operational reliability and precision.

[0036] A first connecting end 541 is provided at the end of the first transmission shaft 54 that is away from the first transmission nut 53; a second connecting end 641 is provided at the end of the second transmission shaft 64 that is away from the second transmission nut 63. In this embodiment, by providing a connecting end at the away end of the transmission shaft, other components or equipment can be conveniently connected and installed. Such a design makes the away end of the transmission shaft a convenient interface that can be connected to other systems or mechanical devices to achieve coordinated operation of the entire system. By setting the connecting end, the connection between the transmission shaft and other transmission components or devices can be achieved. This flexible configuration and scalability allows the system to be customized and adjusted as needed to meet the requirements of different application scenarios.

[0037] The above embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A single-drive double-station electric cylinder, characterized by: It includes a base plate, a drive motor, a linkage assembly, a profile cylinder base, a first transmission assembly and a second transmission assembly; the base plate has a first surface and a second surface opposite to the first surface, the drive motor is arranged on the first surface, and the driving end passes through the first surface and extends to the second surface, the linkage assembly is arranged on the second surface, and is used to synchronously drive and connect the drive motor, the first transmission assembly and the second transmission assembly; the profile cylinder base is arranged on the first surface and is located on one side of the first transmission assembly, the profile cylinder base is provided with a first cavity and a second cavity, the first transmission assembly is arranged in the first cavity, and the second transmission assembly is arranged in the second cavity; the drive motor is used to drive the linkage assembly to drive the first transmission assembly to move in the first cavity and the second transmission assembly to move in the second cavity.

2. The single-drive double-station electric cylinder according to claim 1, characterized in that: A protective cover is provided on the outside of the second surface of the substrate, and the protective cover is used to cover the linkage component.

3. The single-drive double-station electric cylinder according to claim 1, characterized in that: The driving end of the drive motor is provided with a driving gear, and the linkage assembly includes a first driven wheel, a second driven wheel and a third driven wheel. A first synchronous belt transmission connection is provided between the first driven wheel and the driving gear, and a second synchronous belt transmission connection is provided between the second driven wheel and the third driven wheel; the first driven wheel and the second driven wheel are both connected to the first transmission assembly, and one end of the third driven wheel is connected to the second transmission assembly.

4. The single-drive double-station electric cylinder according to claim 1, characterized in that: The profile cylinder seat is an aluminum alloy profile seat, and an end cover is provided on the top end of the profile cylinder seat. The end cover is used to cover the ends of the first cavity and the second cavity.

5. The single-drive double-station electric cylinder according to claim 1, characterized in that: At least two first transmission guide sleeves are provided in the first cavity, and the first transmission guide sleeves are used for transmission guidance of the first transmission assembly; At least two second transmission guide sleeves are provided in the second cavity, and the second transmission guide sleeves are used for transmission guidance of the second transmission assembly.

6. The single-drive double-station electric cylinder according to claim 5, characterized in that: The first transmission assembly includes a first transmission mounting plate, a first transmission screw, a first transmission nut and a first transmission shaft. The first transmission mounting plate is arranged at one end of the first cavity. One end of the first transmission screw is rotatable and passes through the first transmission mounting plate to be connected to the linkage assembly; the first transmission nut is arranged on the first transmission screw, and one end of the first transmission nut is connected to the first transmission shaft; the first transmission screw is used to drive the first transmission nut axially to drive the first transmission shaft to slide along the first transmission guide sleeve.

7. The single-drive double-station electric cylinder according to claim 6, characterized in that: The second transmission assembly includes a second transmission mounting plate, a second transmission screw, a second transmission nut and a second transmission shaft. The second transmission mounting plate is arranged at one end of the second cavity. One end of the second transmission screw is rotatable and passes through the second transmission mounting plate to be connected to the linkage assembly; the second transmission nut is arranged on the second transmission screw, and one end of the second transmission nut is connected to the second transmission shaft; the second transmission screw is used to drive the second transmission nut axially to drive the second transmission shaft to slide along the second transmission guide sleeve.

8. The single-drive double-station electric cylinder according to claim 7, characterized in that: The first transmission screw is provided with a first thread groove, and the first transmission nut slides along the first thread groove; the second transmission screw is provided with a second thread groove, and the second transmission nut slides along the second thread groove.

9. The single-drive double-station electric cylinder according to claim 8, characterized in that: The thread directions of the first thread groove and the second thread groove are opposite to each other.

10. The single-drive double-station electric cylinder according to claim 7, characterized in that: A first connecting end is provided at one end of the first transmission shaft that is away from the first transmission nut; a second connecting end is provided at one end of the second transmission shaft that is away from the second transmission nut.

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