Radially offset adjustment servo cylinder and method

Abstract

The application discloses a radial offset adjusting servo electric cylinder and method, which comprises an electric cylinder assembly, a radial offset detection unit and an adjusting assembly.The electric cylinder assembly comprises a cylinder body, a first driving part, a transmission part and a piston part.The first driving part is installed on the cylinder body, and the two ends of the transmission part are connected with the output end of the first driving part and the input end of the piston part respectively.The radial offset detection unit is installed on the output end of the piston part and fixedly connected with the cylinder body.The adjusting assembly comprises a radial adjusting unit and an extension adjusting unit.The radial adjusting unit is installed on the output end of the piston part.The radial adjusting unit is provided with adjusting holes, and the adjusting holes are arranged in an array along the circumference of the radial adjusting unit.The extension adjusting unit comprises an extension part and a ball.The extension part is at least partially inserted into the adjusting hole and is provided with a ball groove.The ball is installed in the ball groove.The radial offset adjusting servo electric cylinder can detect the radial offset of the piston rod and correct the radial offset distance of the piston rod in time, so that the machining efficiency is not affected.

Description

Technical Field

[0001] This invention relates to the field of linear reciprocating motion equipment technology, specifically to a radial offset adjustment servo electric cylinder and method. Background Technology

[0002] A servo electric cylinder is a linear reciprocating motion device that integrates components such as a servo motor, lead screw, and piston rod. Servo electric cylinders are characterized by high precision, high repeatability, fast response, and programmability, and are widely used in automated systems requiring precise positioning and control, such as machine tools, printing equipment, packaging machinery, and robots. The working principle of existing servo electric cylinders is as follows: the electric motor, through a reducer and lead screw, converts the rotational motion of the servo motor into linear motion. Simultaneously, a position feedback system monitors the slider position in real time and sends feedback signals to the control system. The control system, based on the set target position and parameters, applies appropriate current and voltage to the electric motor through a controller and driver to achieve precise control of the piston rod position.

[0003] However, after prolonged use, the transmission mechanism of existing servo cylinders may experience axial loosening or wear, increasing clearance and causing radial offset of the piston rod during operation. This can affect machining accuracy in precision applications. Currently, existing servo cylinders are typically monitored periodically by operators or automated robots using measuring instruments to check the radial offset data. Once the radial offset exceeds a set value, the servo cylinder is disassembled and repaired. Therefore, this method suffers from drawbacks such as inaccurate radial offset detection, high maintenance costs, and reduced machining efficiency during maintenance.

[0004] Therefore, there is an urgent need for a servo electric cylinder that can detect the radial offset of the piston rod every time it works, and can correct the radial offset distance of the piston rod in a timely manner to avoid affecting the processing efficiency. Summary of the Invention

[0005] To overcome the above shortcomings, the purpose of this invention is to provide a radial offset adjustment servo electric cylinder and its working method, which has a high degree of automation and flexible application. It can detect the radial offset data of the piston rod during each movement, and then provide radial offset correction for the piston rod after detecting that the radial offset of the piston rod exceeds the set value. During the correction, the linear movement of the piston rod is not affected, thereby improving the real-time performance of radial offset detection of the servo electric cylinder, reducing maintenance costs, and avoiding the impact on processing efficiency during servo electric cylinder maintenance.

[0006] To address the aforementioned technical problems, one aspect of the present invention provides a radial offset adjustment servo electric cylinder, comprising: an electric cylinder assembly including a cylinder body, a first driving member, a transmission member, and a piston member; the first driving member is mounted on the cylinder body; the two ends of the transmission member are respectively connected to the output end of the first driving member and the input end of the piston member, wherein the first driving member drives the transmission member to move, and the transmission member drives the piston member to move synchronously; and a radial offset detection unit, which is mounted on the output end of the piston member and fixedly connected to the cylinder body, and acquires radial offset data of the piston member through the radial offset detection unit. The adjustment assembly includes a radial adjustment unit and a telescopic adjustment unit. The radial adjustment unit is installed at the output end of the piston and is fixedly connected to the cylinder body. The radial adjustment unit has adjustment holes, and several adjustment holes are arranged in an array along the circumference of the radial adjustment unit. The telescopic adjustment unit includes a telescopic component and a ball bearing. The telescopic component is at least partially inserted into the adjustment hole and has a ball bearing groove. The ball bearing is installed in the ball bearing groove. The telescopic component drives the ball bearing to move towards the piston to be adjusted, thereby radially adjusting the piston to be adjusted, and the ball bearing assists the movement of the piston to be adjusted.

[0007] By adopting the above technical solution, the radial offset distance of the piston rod can be detected in real time during piston rod movement, thereby identifying the radial offset of the piston rod in real time, so as to take timely measures to adjust and correct the piston rod radially; and, it can provide radial distance adjustment for piston rods whose radial offset exceeds a set threshold, so as to avoid affecting processing efficiency.

[0008] Preferably, the first driving component includes a speed reducer and a servo motor, wherein the speed reducer is mounted on the cylinder body; the servo motor is connected to the speed reducer, and the output end of the servo motor passes through the speed reducer at least partially and is inserted into the cylinder body.

[0009] Preferably, the transmission component includes a coupling, a lead screw, and a lead screw nut. The coupling is connected to the output end of the servo motor, one end of the lead screw is connected to the coupling, the other end of the lead screw is connected to a piston, and the lead screw nut is mounted on the lead screw.

[0010] Preferably, the transmission component further includes a buffer pad, which is installed inside the cylinder to provide cushioning for the lead screw nut.

[0011] Preferably, the electric cylinder assembly further includes a first synchronizing element and a second synchronizing element. The first synchronizing element is installed on the output end of the servo motor and is rotatably connected to the servo motor. The second synchronizing element is installed on the coupling and is fixedly connected to the coupling. The second synchronizing element is connected to the first synchronizing element through a synchronous belt, and the first synchronizing element drives the second synchronizing element to move synchronously.

[0012] By adopting the above technical solution, a foldable servo electric cylinder can be formed, which can make the length of the entire servo electric cylinder shorter, thereby meeting the application space requirements of limited installation occasions.

[0013] Preferably, the radial adjustment unit includes an adjustment ring and a connector. The adjustment ring has adjustment holes, and a plurality of adjustment holes are arranged in an array along the circumference of the adjustment ring. The two ends of the connector are respectively connected to the adjustment ring and the cylinder body.

[0014] Preferably, the telescopic adjustment unit further includes a second driving component, which is mounted on the adjustment ring and its output end is connected to the telescopic component, thereby driving the telescopic component to move.

[0015] By adopting the above technical solution, automated radial offset adjustment of the piston rod can be achieved, increasing the radial correction efficiency of the piston rod, improving the radial offset adjustment accuracy, and reducing labor costs.

[0016] Preferably, the piston component has locking grooves, which are arranged in an array along the outer periphery of the lead screw.

[0017] Preferably, the assembly further includes a self-locking component, comprising a mounting component, a first wedge, a second wedge, a self-locking component, and a tension spring. The mounting component is mounted on the cylinder body and has a mounting groove. The first wedge is located at one end of the mounting groove, and the second wedge is located at the other end of the mounting groove, with a pushing groove on the second wedge. The self-locking component is connected to the second wedge. By moving the first wedge towards the second wedge, at least a portion of the first wedge is inserted into the pushing groove of the second wedge. The first wedge then pushes the second wedge towards the piston rod, thereby causing the self-locking component to move synchronously and at least a portion of the self-locking component is inserted into the locking groove. The two ends of the tension spring are connected to the second wedge and the mounting component, respectively, and the tension spring causes the second wedge to reset.

[0018] By adopting the above technical solution, when the piston rod moves to a set distance, the piston rod drives the first wedge, the second wedge, and the self-locking component to cooperate, thereby achieving self-locking of the piston rod. Self-locking can prevent the piston rod from rotating or wobbling, thus achieving position holding and increasing the safety and reliability of the servo electric cylinder. Furthermore, when the piston rod returns to its original position, the elastic force of the tension spring resets the second wedge, ensuring the reliable reset of the first wedge, the second wedge, and the self-locking component, and providing preparation for the next movement.

[0019] Preferably, the self-locking assembly further includes a third driving member, which is mounted on the cylinder block and has its output end connected to the first wedge. The third driving member drives the first wedge to move toward the second wedge.

[0020] By adopting the above technical solution, the first inclined wedge can be actively driven, thereby enabling more flexible control over the working process and movement speed of the first inclined wedge to meet the needs of different application scenarios; it can also improve speed and response time, while making the movement of the first inclined wedge more controllable and predictable, and giving the servo electric cylinder better adaptability and adjustability.

[0021] To solve the above-mentioned technical problems, one aspect of the present invention also provides a working method for a radial offset adjustment servo electric cylinder. The working method using the radial offset adjustment servo electric cylinder includes the following steps: Step S1: A transmission component moves under the drive of a first driving component, and the piston component moves towards the direction to be processed under the drive of the transmission component, while simultaneously acquiring radial offset data of the piston component; Step S2: Based on the radial offset data, it is determined whether the radial offset distance of the piston component exceeds a preset range. If not, return to Step S1 and reacquire the radial offset data of the piston component. If yes, then based on the radial offset data, radial adjustment data of the piston component is generated; Step S3: Based on the radial adjustment data, a first telescopic component moves towards the piston component, causing the ball bearing of the first telescopic component to contact the piston component, thereby increasing the pushing force of the first telescopic component and adjusting the radial offset distance of the piston component to a preset range; Step S4: A second telescopic component moves towards the adjusted piston component, causing the ball bearing of the second telescopic component to contact the piston component, forming a radial adjustment range for the piston component through the first and second telescopic components.

[0022] Preferably, during the movement of the piston, the following steps are further included: Step S100: After the piston moves to a preset distance, the first wedge moves towards the second wedge, causing the second wedge to abut against the push groove of the first wedge; Step S101: The second wedge drives the self-locking member to move towards the piston, thereby inserting the self-locking member into the locking groove of the self-locking member, and fixing the piston through the self-locking member; Step S102: After the piston is processed, the first wedge moves in the opposite direction to the second wedge, and the second wedge moves in the opposite direction to the piston under the action of the tension spring, thereby causing the self-locking member to move synchronously and no longer fix the piston.

[0023] The technical solution of the present invention has the following advantages compared with the prior art: 1. This invention can detect the radial offset distance of the piston rod in real time during piston rod movement, thereby identifying the radial offset of the piston rod in real time, so as to take timely measures to adjust and correct the piston rod radially; and can provide radial distance adjustment for piston rods whose radial offset exceeds a set threshold, so as to avoid affecting processing efficiency.

[0024] 2. This invention enables the piston rod to self-lock when it moves to a set distance. This self-locking prevents the piston rod from rotating or wobbling, thus maintaining its position and increasing the safety and reliability of the servo electric cylinder. Furthermore, the automated self-locking allows for more flexible control of the working process and movement speed of the self-locking component to meet the needs of different application scenarios, giving the servo electric cylinder better adaptability and adjustability.

[0025] 3. The present invention can reset the second wedge by means of the elastic force of the tension spring during the piston rod reset movement, so as to ensure the reliable reset of the first wedge, the second wedge, and the self-locking component, and provide pre-preparation for the next movement, thereby improving the working efficiency of the self-locking mechanism. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0027] Figure 1 This is a first perspective view of the direct-connected radial offset adjustment servo electric cylinder of the present invention.

[0028] Figure 2 This is a second perspective view of the direct-connected radial offset adjustment servo electric cylinder of the present invention.

[0029] Figure 3 This is a third perspective view of the direct-connected radial offset adjustment servo electric cylinder of the present invention.

[0030] Figure 4 This is a first partial three-dimensional schematic diagram of the output end of the servo electric cylinder of the present invention.

[0031] Figure 5 This is a second partial three-dimensional schematic diagram of the output end of the servo electric cylinder of the present invention.

[0032] Figure 6 This is a first perspective view of the foldable radial offset adjustment servo electric cylinder of the present invention.

[0033] Figure 7 This is a front view schematic diagram of the direct-connected radial offset adjustment servo electric cylinder of the present invention.

[0034] Figure 8 This is a second perspective view of the direct-connected radial offset adjustment servo electric cylinder of the present invention.

[0035] Figure 9This is a cross-sectional schematic diagram of the direct-connected radial offset adjustment servo electric cylinder of the present invention.

[0036] Figure 10 This is an enlarged schematic diagram of region A of the present invention.

[0037] Figure 11 This is an exploded view of the self-locking component of the present invention.

[0038] Figure 12 This is a partial cross-sectional schematic diagram of the self-locking region of the radial offset adjustment servo electric cylinder of the present invention.

[0039] Figure 13 This is an enlarged schematic diagram of region A of the present invention.

[0040] Figure 14 This is a three-dimensional schematic diagram of the second self-locking method of the radial offset adjustment servo electric cylinder of the present invention.

[0041] Figure 15 This is a cross-sectional schematic diagram of the second self-locking method of the radial offset adjustment servo electric cylinder of the present invention.

[0042] Figure 16 This is an enlarged schematic diagram of region C of the present invention. Detailed Implementation

[0043] One aspect of this invention provides a radial offset adjustment servo cylinder. The servo cylinder described herein is preferably a servo cylinder using a lead screw as its transmission mechanism. Servo cylinders using a lead screw as their transmission mechanism include, but are not limited to, direct-drive servo cylinders and folding servo cylinders. A direct-drive servo cylinder mainly includes components such as a servo motor, reducer, lead screw, lead screw nut, coupling, and piston rod. The servo motor drives the lead screw to rotate, and the lead screw nut converts this into linear motion, thereby pushing the piston rod to achieve linear reciprocating motion. A folding servo cylinder mainly includes components such as a servo motor, reducer, synchronous pulley, synchronous belt, lead screw, lead screw nut, coupling, and piston rod. The servo motor, in conjunction with the synchronous pulley, drives the lead screw to rotate, and the lead screw nut converts this into linear motion, thereby pushing the piston rod to achieve linear reciprocating motion. The folding installation method shortens the overall length of the servo cylinder, meeting the application space requirements of limited installation occasions. The synchronous pulley allows for adjustment of the reduction ratio within a small range. In summary, the basic principle of the servo electric cylinder involved is: using a servo motor to directly or indirectly drive the lead screw to rotate, thereby converting the lead screw nut into linear motion, which in turn pushes the piston rod to achieve linear reciprocating motion.

[0044] refer to Figures 1-5 As shown, in some embodiments, the radial offset adjustment servo electric cylinder involved consists of at least an electric cylinder assembly, a radial offset detection unit 2, and an adjustment assembly.

[0045] Electric cylinder assembly The electric cylinder assembly includes a cylinder body 10, a first drive member 11, a transmission member 12, and a piston member 13. The first drive member 11 is mounted on the cylinder body 10. The two ends of the transmission member 12 are connected to the output end of the first drive member 11 and the input end of the piston member 13, respectively. The first drive member 11 drives the transmission member 12 to move, and then the transmission member 12 drives the piston member 13 to move synchronously.

[0046] Among them, reference Figure 2 As shown, the cylinder body 10 has an input port 100 and an output port 101. The input port 100 is located at the input end of the cylinder body 10, and the output port 101 is located at the output end of the cylinder body 10. The input port 100 is equipped with a bearing seat 102, and the output port 101 is equipped with a flange 103.

[0047] Among them, reference Figure 3 As shown, the first driving component 11 includes a reducer 110 and a servo motor 111. The reducer 110 is installed at the input end of the cylinder body 10, and the servo motor 111 is connected to the reducer 110. The output end of the servo motor 111 passes through the reducer 110 and is at least partially inserted into the input port 100 of the cylinder body 10.

[0048] The transmission component 12 includes a coupling 120, a lead screw 121, and a lead screw nut 122. The coupling 120 is connected to the output end of the servo motor 111. One end of the lead screw 121 is connected to the coupling 120, and the other end of the lead screw 121 is connected to the piston component 13. The lead screw nut 122 is mounted on the lead screw 121. The transmission component 12 also includes a buffer pad 123. The buffer pad 123 can be any material or style of buffer pad 123 as long as it can provide buffering for the lead screw nut, including but not limited to pure rubber pads and sandwich rubber buffer pads 123. The specific design is determined by the operator based on actual processing requirements and cost.

[0049] The piston component 13 includes a piston rod 130 and a piston rod 130 nut. One end of the piston rod 130 is at least partially inserted into the cylinder body 10 and connected to the lead screw 121. The piston rod 130 nut is installed at the end of the piston rod 130 away from the lead screw and is connected to the piston rod 130.

[0050] Radial offset detection unit 2 The radial offset detection unit 2 is installed at the output end of the piston component 13 and is fixedly connected to the cylinder body 10. The radial offset data of the piston component 13 is obtained through the radial offset detection unit 2.

[0051] The radial offset detection unit 2 can be any type of sensor capable of detecting the radial offset data of the piston 13. In this application, an eddy current sensor is used to detect the radial offset data of the piston rod 130.

[0052] Adjustment components The adjustment assembly includes a radial adjustment unit 30 and a telescopic adjustment unit 31. The radial adjustment unit 30 is installed at the output end of the piston 13 and is fixedly connected to the cylinder 10. The radial adjustment unit 30 has an adjustment hole 302, and several adjustment holes 302 are arranged in an array along the circumference of the radial adjustment unit 30. The telescopic adjustment unit 31 includes a telescopic member 310 and a ball bearing 311. The telescopic member 310 is at least partially inserted into the adjustment hole 302 and has a ball bearing groove 312. The ball bearing 311 is installed in the ball bearing groove 312. The telescopic member 310 drives the ball bearing 311 to move towards the piston 13 to be adjusted, thereby radially adjusting the piston 13 to be adjusted, and the ball bearing 311 assists the movement of the piston 13 to be adjusted.

[0053] Among them, reference Figure 4 , Figure 5 As shown, the radial adjustment unit 30 includes an adjustment ring 300 and a connector 301. The adjustment ring 300 is sleeved on the output end of the piston rod 130, and the adjustment ring 300 has an adjustment hole 302. A plurality of adjustment holes 302 are arranged in a circular array along the circumference of the adjustment ring 300. In this embodiment, the reference is a circular array with equal spacing. At least one connector 301 is provided, and one end of the connector 301 is fixedly connected to the adjustment ring 300, and the other end of the connector 301 is fixedly connected to the cylinder body 10.

[0054] Among them, reference Figure 4 , Figure 5 As shown, in this solution, the telescopic component 310 adopts a manually adjustable screw design. The telescopic component 310 is threadedly connected to the adjustment hole 302. The distance of the telescopic component 310 can be adjusted by manually rotating the telescopic component 310. The ball bearing 311 is installed in the ball groove 312 of the telescopic component 310, and the ball bearing 311 is rotatably connected to the ball groove 312. The ball bearing 311 provides the telescopic movement of the piston rod 130, so as to avoid affecting the telescopic movement of the piston rod 130 when the piston rod 130 is radially adjusted.

[0055] The radial offset adjustment servo electric cylinder is also equipped with a control unit, which is connected to the electric cylinder assembly, the radial offset detection unit 2, and the adjustment assembly respectively. The control unit controls the electric cylinder assembly, the radial offset detection unit 2, and the adjustment assembly to execute the set working steps.

[0056] Therefore, one aspect of the present invention proposes a working method for a radial offset adjustment servo electric cylinder. This method provides radial offset distance detection for the piston 13 of the servo electric cylinder, and then provides radial offset correction for the piston 13 that has radial offset. At the same time as correction, the influence on the linear motion of the piston 13 is reduced, the real-time performance of radial offset detection of the servo electric cylinder is improved, maintenance costs are reduced, and thus the processing efficiency is avoided during the maintenance of the servo electric cylinder.

[0057] Preferably, in actual implementation, the operating method of the radial offset adjustment servo cylinder of the present invention is executed by the aforementioned radial offset adjustment servo cylinder. For example, the method can be designed into a language format that can be understood by a computer (e.g., a computer program) and stored in a storage medium, so that it can be invoked and executed by the control unit of the radial offset adjustment servo cylinder during the operation of the servo cylinder.

[0058] The present invention provides a method for operating a radial offset adjustment servo electric cylinder, which provides automated radial offset distance detection for the piston component 13 of the servo electric cylinder, thereby providing manual radial offset adjustment. Specifically, refer to... Figures 1-5 In some embodiments, the working method of a radial offset adjustment servo electric cylinder of the present invention consists of S1-S4.

[0059] Step S1: The transmission component 12 moves under the drive of the first driving component 11, and then the piston component 13 moves in the direction to be processed under the drive of the transmission component 12, while acquiring the radial offset data of the piston component 13.

[0060] The first driving component 11 drives the transmission component 12 to rotate, which in turn drives the piston component 13 to move linearly, that is, the piston rod 130 moves linearly in the direction to be processed. At the same time, the radial offset detection unit 2 acquires the radial offset data of the piston rod 130 in real time.

[0061] Step S2: Based on the radial offset data, determine whether the radial offset distance of the piston 13 exceeds the preset range. If not, return to step S1 and reacquire the radial offset data of the piston 13. If yes, generate the radial adjustment data of the piston 13 based on the radial offset data.

[0062] The specific preset range is set by the operator based on the actual processing accuracy requirements and cost. After determining that the radial offset distance of the piston rod 130 exceeds the preset range, step S20 is executed: the radial adjustment data matching the piston rod 130 is generated based on the radial offset data. The radial adjustment data includes the number of the telescopic component 310 that needs radial offset adjustment and the radial offset correction distance. The telescopic component 310 that needs radial offset adjustment is the first telescopic component, and the remaining other telescopic components 310 are the second telescopic components 310. The second telescopic component 310 has the same structure as the first telescopic component.

[0063] Step S3: According to the radial adjustment data, move the first telescopic member toward the piston member 13, so that the ball 311 of the first telescopic member abuts against the piston member 13, thereby increasing the pushing force of the first telescopic member and adjusting the radial offset distance of the piston member 13 to the preset range.

[0064] In this embodiment, the operator rotates the matching first telescopic component according to the generated radial adjustment data. The first telescopic component moves within the adjustment hole 302, causing the ball bearing 311 of the first telescopic component to contact the piston rod 130. The operator then continues to rotate the first telescopic component, increasing its pushing force and adjusting the radial offset distance of the piston rod 130 to a preset range. Although this solution increases the adjustment time of the piston rod 130 through manual adjustment by the operator, it can reduce the equipment cost and energy consumption cost required for automation. Furthermore, depending on actual needs and cost, the operator can also install automated equipment to drive the telescopic component 310.

[0065] Step S4: Move the second telescopic member 310 toward the adjusted piston member 13, so that the ball 311 of the second telescopic member 310 abuts against the piston member 13, and form the radial adjustment range of the piston member 13 through the first telescopic member and the second telescopic member 310.

[0066] In this process, after the first telescopic member corrects the piston rod 130, the remaining telescopic members 310, namely the second telescopic member 310, are moved toward the adjusted piston rod 130. The ball 311 of the second telescopic member 310 is brought into contact with the piston member 13. The first telescopic member and the second telescopic member 310 form a radial adjustment range for the linear movement of the piston rod 130, thereby reducing the radial offset of the piston rod 130 during movement.

[0067] By adopting the above technical solution, the radial offset detection unit 2 can detect the radial offset distance of the piston rod 130 in real time when the piston rod 130 moves, thereby identifying the radial offset of the piston rod 130 in real time, so as to take timely measures to adjust and correct the piston rod 130 radially. By setting the adjustment component, in this embodiment, the manual adjustment mode of the operator can be adopted to provide radial distance adjustment for the piston rod 130 whose radial offset exceeds the set threshold, so as to avoid affecting the processing efficiency.

[0068] In some embodiments, the electric cylinder assembly further includes a first synchronizing element 14 and a second synchronizing element 15.

[0069] Among them, reference Figures 6-8 As shown, the first synchronizing element 14 is installed on the output end of the servo motor 111 and is rotatably connected to the servo motor 111; the second synchronizing element 15 is installed on the coupling 120 and is fixedly connected to the coupling 120. The second synchronizing element 15 is connected to the first synchronizing element 14 through a synchronous belt, and the first synchronizing element 14 drives the second synchronizing element 15 to move synchronously.

[0070] By adopting the above technical solution and setting the first synchronization element 14 and the second synchronization element 15, a foldable servo electric cylinder can be formed, thereby making the length of the entire servo electric cylinder shorter and thus meeting the application space requirements of limited installation occasions.

[0071] In some embodiments, the telescopic adjustment unit 31 further includes a second drive member 313.

[0072] Among them, reference Figures 6-8 As shown, the second drive member 313 is mounted on the adjusting ring 300, and the output end of the second drive member 313 is connected to the telescopic member 310. The telescopic member 310 is driven to move by the second drive member 313. The second drive member 313 can be any type of drive mechanism as long as it can drive the telescopic member 310 to move linearly, including but not limited to hydraulic devices, pneumatic devices, servo motors 111 (drive screw, cam type) and other drive mechanisms that provide reciprocating linear motion power.

[0073] In one example where operations are performed sequentially, a method for operating a radial offset adjusting servo electric cylinder according to the present invention provides automated radial offset adjustment for the piston 13 of the servo electric cylinder. Specifically, refer to... Figures 6-8 The working method of the radial offset adjustment servo electric cylinder of the present invention further includes the following steps S200-S201 when adjusting the radial offset distance of the piston 13 to a preset range.

[0074] Step S200: Based on the radial adjustment data, the first telescopic member is driven to move towards the piston member 13 by the second driving member 313, so that the ball 311 of the first telescopic member abuts against the piston member 13, and then the driving force is increased by the second driving member 313, thereby increasing the pushing force of the first telescopic member, and adjusting the radial offset distance of the piston member 13 to the preset range.

[0075] Step S201: Drive the second telescopic member 310 to move towards the adjusted piston member 13 through the second driving member 313, so that the ball 311 of the second telescopic member 310 abuts against the piston member 13, and the first telescopic member and the second telescopic member 310 form the radial adjustment range of the piston member 13.

[0076] By adopting the above technical solution and setting the second driving component 313, the radial offset adjustment of the piston rod 130 can be automated, increasing the radial correction efficiency of the piston rod 130, improving the radial offset adjustment accuracy, and reducing labor costs.

[0077] In some embodiments, the piston rod 130 is provided with a locking groove 132, which is arranged in an array along the outer periphery of the piston member 13.

[0078] In some embodiments, reference Figures 9-13 As shown, the radial offset adjustment servo electric cylinder of the present invention also includes a self-locking assembly, which includes a mounting member 40, a first wedge member 41, a second wedge member 42, a self-locking member 43, and a tension spring 44.

[0079] Among them, reference Figure 10 As shown, the mounting part 40 is installed on the cylinder body 10 and has a mounting groove 400. The number of mounting parts 40 is set by the operator according to actual needs.

[0080] Among them, reference Figure 11 As shown, the first wedge 41 is located at one end of the mounting groove 400, the second wedge 42 is located at the other end of the mounting groove 400, and the second wedge 42 has a pushing groove 45; the self-locking member 43 is connected to the second wedge 42.

[0081] In this embodiment, when the piston 13 moves to a preset distance, the tail end of the piston rod 130 drives the first wedge 41 to move towards the second wedge 42, inserting at least part of the first wedge 41 into the pushing groove 45 of the second wedge 42. Then, the first wedge 41 pushes the second wedge 42 towards the piston rod 130, and the second wedge 42 drives the self-locking member 43 to move synchronously, inserting at least part of the self-locking member 43 into the locking groove 132.

[0082] The two ends of the tension spring 44 are connected to the second wedge 42 and the mounting piece 40, respectively.

[0083] After the piston rod 130 moves in the opposite direction to the first wedge 41 (i.e., after the piston 13 is reset), the second wedge 42 is reset by the tension spring 44.

[0084] In one example executed in a sequential manner, the operating method of a radial offset adjusting servo cylinder of the present invention provides a self-locking function for the piston 13 of the servo cylinder to achieve its maximum extension distance. Specifically, refer to... Figures 9-13 The working method of the radial offset adjustment servo electric cylinder of the present invention further includes steps S100-S102 when the piston 13 moves.

[0085] Step S100: When the piston 13 moves to a preset distance, the first wedge 41 moves toward the second wedge 42, so that the first wedge 41 and the second wedge 42 come into contact.

[0086] The preset distance is set by the operator according to actual needs and cost. In this embodiment, the maximum extension distance of the piston rod 130 is referenced. When the piston rod 130 moves to the maximum extension distance, the first wedge 41 is driven to move towards the second wedge 42 through the lead screw nut 122, so that the first wedge 41 and the second wedge 42 come into contact.

[0087] Step S101: The second wedge 42 drives the self-locking member 43 to move towards the piston member 13, thereby inserting the self-locking member 43 into the locking groove 132 of the self-locking member 43, and fixing the piston member 13 by the self-locking member 43.

[0088] Specifically, the first inclined wedge 41 drives the second inclined wedge 42 to move synchronously, and then the second inclined wedge 42 drives the self-locking member 43 to move towards the piston member 13, inserting the self-locking member 43 into the locking groove 132 of the self-locking member 43, and fixing the piston member 13 by at least one self-locking member 43.

[0089] Step S102: After the piston part 13 is processed, the first wedge 41 moves in the opposite direction to the second wedge 42. The second wedge 42 moves in the opposite direction to the piston part 13 under the action of the tension spring 44, thereby causing the self-locking part 43 to move synchronously and no longer fix the piston part 13.

[0090] In this process, after the piston part 13 is processed and the lead screw nut moves in the opposite direction to the first wedge part 41, the tension spring 44 drives the second wedge part 42 to move in the opposite direction to the piston rod 130. The second wedge part 42 drives the self-locking part 43 to move synchronously, thereby causing the self-locking part 43 to move synchronously away from the locking groove 132 and no longer fix the piston part 13. At the same time, the second wedge part 42 pushes the first wedge part 41 to move in the opposite direction to the second wedge part 42.

[0091] By adopting the above technical solution, through the setting of mounting part 40, first inclined wedge 41, second inclined wedge 42, and self-locking part 43, when the piston rod 130 moves to a set distance, the piston rod 130 drives the first inclined wedge 41, the second inclined wedge 42, and the self-locking part 43 to cooperate, thereby realizing the self-locking of the piston rod 130. The self-locking can prevent the piston rod from rotating or shaking, thereby achieving position holding and increasing the safety and reliability of the servo electric cylinder. Through the setting of tension spring 44, when the piston rod 130 returns to its original position, the elastic force of tension spring 44 can reset the second inclined wedge 42, ensuring the reliable reset of the first inclined wedge 41, the second inclined wedge 42, and the self-locking part 43, and providing pre-preparation for the next movement.

[0092] In some embodiments, reference Figures 14-16 As shown, the self-locking assembly also includes a third drive element 46.

[0093] Among them, reference Figure 14 As shown, the third drive member 46 is mounted on the cylinder body 10, and the output end of the third drive member 46 is connected to the first wedge member 41. The third drive member 46 can be any type of drive mechanism as long as it can drive the first wedge member 41 to move linearly, including but not limited to hydraulic devices, pneumatic devices, servo motors 111 (driving screw, cam type) and other drive mechanisms that provide reciprocating linear motion power.

[0094] The first wedge 41 is driven to move toward the second wedge 42 by the third driving member 46.

[0095] By adopting the above technical solution, the first inclined wedge 41 can be actively driven by the third driving component 46, thereby enabling more flexible control over the working process and movement speed of the first inclined wedge 41 to meet the needs of different application scenarios. It can also improve speed and response time, while making the movement of the first inclined wedge 41 more controllable and predictable, and giving the servo electric cylinder better adaptability and adjustability.

[0096] In one example executed in a sequential manner, the operating method of a radial offset adjusting servo cylinder of the present invention provides an electrically self-locking function for the piston 13 of the servo cylinder to achieve maximum extension distance. Specifically, refer to... Figures 14-16 The working method of the radial offset adjustment servo electric cylinder of the present invention further includes steps S1000-S1002 when the piston 13 moves to a preset distance.

[0097] Step S1000: Drive the first wedge 41 to move towards the second wedge 42 via the third drive member 46, so that the second wedge 42 abuts against the push groove 45 of the first wedge 41.

[0098] Step S1001: The first wedge 41 drives the second wedge 42 to move synchronously, and then the second wedge 42 drives the self-locking member 43 to move synchronously, so that the self-locking member 43 is at least partially inserted into the locking groove 132 of the self-locking member 43, and the piston member 13 is fixed by the self-locking member 43.

[0099] Step S1002: After the piston part 13 is processed, the first wedge part 41 is driven to move in the opposite direction to the second wedge part 42 by the third drive part 46. The second wedge part 42 moves in the opposite direction to the piston part 13 under the action of the tension spring 44, thereby causing the self-locking part 43 to move synchronously and no longer fix the piston part 13.

[0100] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0101] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0102] Explanation of reference numerals in the attached figures 2. Radial offset detection unit 10. Cylinder Block 11. First driving component 12. Transmission components 13. Piston components 14. First Synchronizing Component 15. Second Synchronizing Component 30. Radial Adjustment Unit 31. Telescopic Adjustment Unit 40. Mounting components 41. First wedge 42. Second wedge 43. Self-locking component 44. Tension spring 45. Push slot 46. ​​Third driving component 100. Input Port 101. Output Port 102. Bearing housing 103. Flange components 110. Gearbox 111. Servo Motor 120. Coupling 121. Lead screw 122. Lead screw nut 123. Cushioning Pad 130. Piston rod 132. Lock slot 300. Adjusting ring 301. Connecting parts 302. Adjustment Hole 310. Telescopic components 311. Ball bearing 312. Ball groove 313. Second driving component 400. Mounting slot

Claims

1. Radially offset adjusting servo cylinder, characterized in that include: An electric cylinder assembly includes a cylinder body, a first driving component, a transmission component, and a piston component. The first driving component is mounted on the cylinder body. The two ends of the transmission component are respectively connected to the output end of the first driving component and the input end of the piston component. The first driving component drives the transmission component to move, and the transmission component drives the piston component to move synchronously. A radial offset detection unit is installed at the output end of the piston component and is fixedly connected to the cylinder body. The radial offset data of the piston component is obtained through the radial offset detection unit. as well as The adjustment assembly includes a radial adjustment unit and a telescopic adjustment unit; The radial adjustment unit is installed at the output end of the piston and is fixedly connected to the cylinder body; the radial adjustment unit has adjustment holes, and several adjustment holes are arranged in an array along the circumference of the radial adjustment unit. The telescopic adjustment unit includes a telescopic component and a ball bearing. The telescopic component is at least partially inserted into the adjustment hole and has a ball bearing groove. The ball bearing is installed in the ball bearing groove. The telescopic component drives the ball bearing to move towards the piston component to be adjusted, thereby radially adjusting the piston component to be adjusted. The ball bearing assists the movement of the piston component to be adjusted. The radial adjustment unit includes an adjustment ring and a connector. The adjustment ring has adjustment holes, and a plurality of adjustment holes are arranged in an array along the circumference of the adjustment ring. The two ends of the connector are respectively connected to the adjustment ring and the cylinder body. The telescopic adjustment unit further includes a second driving component, which is mounted on the adjustment ring and its output end is connected to the telescopic component, thereby driving the telescopic component to move. The piston component is provided with locking grooves, which are arranged in an array along the outer periphery of the lead screw. It also includes self-locking components; The self-locking assembly includes a mounting component, a first wedge, a second wedge, a self-locking component, and a tension spring; The mounting component is installed on the cylinder block and has a mounting groove. The first wedge is located at one end of the mounting groove, the second wedge is located at the other end of the mounting groove, and the second wedge has a pushing groove. The self-locking member is connected to the second inclined wedge; by moving the first inclined wedge towards the second inclined wedge, at least part of the first inclined wedge is inserted into the pushing groove of the second inclined wedge, and then the first inclined wedge pushes the second inclined wedge towards the piston rod, and then the second inclined wedge drives the self-locking member to move synchronously, and at least part of the self-locking member is inserted into the locking groove; The two ends of the tension spring are connected to the second wedge and the mounting piece, respectively, and the tension spring drives the second wedge to reset.

2. The radial offset adjustment servo electric cylinder according to claim 1, characterized in that, The first driving component includes a speed reducer and a servo motor. The speed reducer is mounted on the cylinder body. The servo motor is connected to the speed reducer, and the output end of the servo motor passes through the speed reducer in at least part and is inserted into the cylinder body.

3. The radial offset adjustment servo electric cylinder according to claim 2, characterized in that, The transmission component includes a coupling, a lead screw, and a lead screw nut. The coupling is connected to the output end of the servo motor. One end of the lead screw is connected to the coupling, and the other end of the lead screw is connected to a piston. The lead screw nut is mounted on the lead screw.

4. The radial offset adjustment servo electric cylinder according to claim 3, characterized in that, The transmission component also includes a buffer pad, which is installed inside the cylinder and provides cushioning for the lead screw nut.

5. The radial offset adjustment servo electric cylinder according to claim 2, characterized in that, The electric cylinder assembly further includes a first synchronizing element and a second synchronizing element. The first synchronizing element is installed on the output end of the servo motor and is rotatably connected to the servo motor. The second synchronizing element is installed on the coupling and is fixedly connected to the coupling. The second synchronizing element is connected to the first synchronizing element through a synchronous belt, and the first synchronizing element drives the second synchronizing element to move synchronously.

6. The radial offset adjustment servo electric cylinder according to claim 5, characterized in that, The self-locking assembly also includes a third driving member, which is mounted on the cylinder block and its output end is connected to the first wedge. The third driving member drives the first wedge to move towards the second wedge.

7. The working method of a radial offset adjustment servo electric cylinder, characterized in that, The working method of using the radial offset adjustment servo electric cylinder according to any one of claims 1-6 includes the following steps: Step S1: The transmission component moves under the drive of the first driving component, and then the piston moves in the direction to be processed under the drive of the transmission component, while acquiring the radial offset data of the piston. Step S2: Based on the radial offset data, determine whether the radial offset distance of the piston exceeds the preset range. If not, return to step S1 and reacquire the radial offset data of the piston. If so, generate the radial adjustment data of the piston based on the radial offset data. Step S3: According to the radial adjustment data, move the first telescopic member toward the piston member, so that the ball of the first telescopic member abuts against the piston member, thereby increasing the pushing force of the first telescopic member and adjusting the radial offset distance of the piston member to a preset range; Step S4: Move the second telescopic member toward the adjusted piston member, so that the ball of the second telescopic member abuts against the piston member, and form the radial adjustment range of the piston member through the first telescopic member and the second telescopic member.

8. The operating method of the radial offset adjusting servo electric cylinder according to claim 7, characterized in that, The piston movement also includes the following steps: Step S100: After the piston moves to a preset distance, the first wedge moves toward the second wedge, so that the second wedge abuts against the push groove of the first wedge; Step S101: The second wedge moves the self-locking component toward the piston component, thereby inserting the self-locking component into the locking groove of the self-locking component and fixing the piston component through the self-locking component; Step S102: After the piston component is processed, the first wedge component moves in the opposite direction to the second wedge component. The second wedge component moves in the opposite direction to the piston component under the action of the tension spring, thereby causing the self-locking component to move synchronously and no longer fix the piston component.

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