A precision electric actuator based on intelligent control and its usage method

Abstract

The present invention discloses a precision electric actuator based on intelligent control and its usage method, which includes an electric actuator body. An electronic control main board is arranged inside the electric actuator body. A detachable circuit board is detachably inserted into the electric actuator body. A temperature sensor, a control chip and a wireless module are configured on the detachable circuit board. An installation hole is formed on the right side of the electric actuator body. The detachable circuit board can be electrically plugged into the electronic control main board through the installation hole; it also includes a portable installation structure, which includes a clamping member and an inner pushing member. The present invention has the following advantages and effects: the detachable circuit board is detachable, which is convenient for replacing or repairing the temperature sensor, the control unit and the wireless module; the assembly of the detachable circuit board is very convenient, without the need for complex disassembly of the electric actuator body or large-scale manual intervention; through portable installation, the assembly of the detachable circuit board can be completed in a narrow installation hole.

Description

Technical Field

[0001] The present invention relates to the field of electric actuators, and particularly to a precision electric actuator based on intelligent control and its usage method. Background Art

[0002] With the continuous development of intelligent technologies, electric actuators are increasingly widely used in automated control systems, especially in the field of precision control. The performance of electric actuators is crucial for the stability and accuracy of the entire system. In order to better perform intelligent control, the electric actuator is interacted with an external terminal to achieve remote intelligent control. Temperature changes have a greater impact on the lifespan and performance of electric actuators. Especially when in a high-temperature environment for a long time, it is extremely easy to cause damage to the electric actuator or system failure. To solve the above problems, attempts have been made to add a temperature sensor, a control unit, and a wireless module inside the electric actuator body. The temperature sensor can monitor the internal temperature of the electric actuator body in real time, and transmit the monitored temperature data to the external terminal through a control chip and a wireless module to achieve the purpose of remote monitoring. However, the existing electric actuator bodies generally adopt an integrated design, and the temperature sensor, the control unit, and the wireless module are all directly soldered on the electronic control main board inside the actuator body. This structure has significant defects in practical applications: when the temperature sensor, the control chip, or the wireless module fails, the entire electric actuator body needs to be disassembled for maintenance, which brings great inconvenience and high maintenance costs.

[0003] Therefore, it is necessary to separate the temperature sensor, the control unit, and the wireless module, and configure them on an independent detachable circuit board, and form an electrical plug-in connection by plugging the detachable circuit board into the electronic control main board inside the electric actuator body. In this way, when the temperature sensor, the control unit, or the wireless module is damaged, only the detachable circuit board needs to be removed for separate replacement, without disassembling and maintaining the entire electric actuator body.

[0004] On this basis, it is also necessary to simplify the assembly process of the detachable circuit board to avoid complex disassembly or large-scale manual intervention on the electric actuator body; at the same time, it is also necessary to meet the assembly requirements in a limited space or a compact environment. Summary of the Invention

[0005] The purpose of the present invention is to provide a precision electric actuator based on intelligent control and its usage method to solve the problems raised in the background art.

[0006] The above technical purpose of the present invention is achieved through the following technical solutions:

[0007] In order to achieve the above-mentioned object, the present invention provides a precision electric actuator based on intelligent control, comprising an electric actuator body, wherein an electric control main board is fixedly arranged inside the electric actuator body; a detachable circuit board is detachably inserted in the electric actuator body, and a temperature sensor, a control chip and a wireless module are arranged on the detachable circuit board, and the control chip is electrically connected to the temperature sensor and the wireless module respectively; a mounting hole is opened on the right side of the electric actuator body, and a portion is interconnected between the mounting hole and the electric control main board, and the detachable circuit board can be electrically plugged into the electric control main board through the mounting hole;

[0008] It also includes a portable installation structure for clamping the detachable circuit board and inserting the clamped detachable circuit board into the installation hole to electrically connect it with the electronic control main board;

[0009] The portable installation structure includes:

[0010] A clamping member for clamping a detachable circuit board;

[0011] and an inner pushing member that can be attached to the inner peripheral wall of the mounting hole and continuously extend leftward into the mounting hole with the clamping member;

[0012] After the clamping member clamps the detachable circuit board, the clamping member will maintain the clamping state under normal conditions, and the clamping member can release the clamping state under the active force of the operator.

[0013] Further configuration is that: the inner pushing member includes a tube body with a circular cross-section, and a plurality of movable units that can expand outward away from the tube body or shrink inward close to the tube body are regularly arranged on the outer peripheral wall of the tube body, and after the inner pushing member is extended into the mounting hole, each of the movable units has a tendency to expand outward to be close to the inner peripheral wall of the mounting hole, and the tube body coincides with the central axis of the mounting hole;

[0014] An electrical connection seat is welded on the right end of the electronic control main board, and an electrical connection head is welded on the front of the detachable circuit board. After the detachable circuit board is clamped by the clamping component and extends into the mounting hole, the electrical connection head faces the left side, and after the central axis of the tube body and the mounting hole coincide, the position of the electrical connection head is aligned with the electrical connection seat.

[0015] Further configuration is that: each group of the movable units comprises two fixed base blocks fixed on the outer peripheral wall of the right half of the tube body, a spacing space is provided between the two fixed base blocks, an action arm is provided in the spacing space, and one end of the action arm is hingedly provided in the spacing space;

[0016] A movable sleeve block that can move along the tube body is sleeved on the outer peripheral wall of the left half of the tube body, and each group of the movable units includes a fixed protrusion fixed on the movable sleeve block, and the opposite sides of the fixed protrusion are hingedly provided with side panels; the other end of the action arm away from the spacing space extends to the middle position of the two side panels and is hinged with the two side panels; a pulley is hingedly provided between the ends of the two side panels away from the fixed protrusion.

[0017] A further configuration is that a fixed plate is fixedly provided at the left end of the tube body, a force plate is fixedly provided at the left end of the movable sleeve block, an external compression spring is provided between the fixed plate and the force plate, and the external compression spring applies a force to continuously move the force plate to the right.

[0018] Further configuration is: the clamping member includes a front end column, a rear end column and a plurality of groups of connecting rod members, each group of the connecting rod members includes a front end protrusion and a rear end protrusion respectively fixed on the outer peripheral wall of the front end column and the rear end column; a connecting rod arm is hingedly provided on the front end protrusion, and a clamping plate is hingedly provided on the other end of the connecting rod arm, and the hinged position of the connecting rod arm and the clamping plate is located at the right half of the clamping plate; an integrated arm is hingedly provided on the rear end protrusion, and the other end of the integrated arm is hingedly provided on the left half of the clamping plate; the connecting rod arm and the integrated arm are cross-connected, and a rotating shaft is provided at the intersection of the two;

[0019] The front end column is provided with a fixed shaft fixed in the tube body, and the rear end column is provided with a driving shaft extending out of the right end of the tube body and movably connected to the tube body;

[0020] The control tube body remains stationary, and the operator can control the clamping plates to move away from each other by pushing the drive shaft to the left, thereby releasing the clamping state of the clamping component.

[0021] Further configuration is: the tube body has a hollow inner opening, and the inner opening coincides with the central axis of the tube body; an inner tube extending along the direction of the inner opening is provided in the inner opening, and the inner tube extends to the right out of the inner opening to be exposed to the outside; the inner tube is fixed to the inner opening by a fixed inner ring, and a through axial hole is provided in the inner tube; the drive shaft extends into the axial hole and extends to the right out of the axial hole to be exposed to the outside, and the drive shaft is used for the operator to actively apply force to release the clamping state of the clamping member; a first through hole is provided in the rear end column for the fixed shaft to pass through, and the fixed shaft passes through the first through hole and extends into the axial hole, and the fixed shaft is fixed to the inner tube wall.

[0022] A further setting is that: an inner cavity is formed in the inner tube, the fixed shaft and the driving shaft both pass through the inner cavity, a follower block located in the inner cavity is fixedly arranged on the outer periphery of the driving shaft, a second through hole for the fixed shaft to pass through is formed in the follower block, an inner compression spring is arranged in the inner cavity, and the inner compression spring applies a force for the follower block to continuously move rightward.

[0023] A further setting is that: a clamping area for clamping a detachable circuit board is formed between each of the clamping plates, arc surfaces are provided on the inner sides of each of the clamping plates, and the shape of the detachable circuit board is circular;

[0024] A backing plate capable of supporting the detachable circuit board is fixedly arranged at the left end of the front end cylinder, a concave groove is formed by the cooperation of the backing plate and the front end cylinder, a positioning block capable of extending into the concave groove is fixedly arranged on the back surface of the detachable circuit board, and the positioning block is matched with the concave groove.

[0025] To achieve the above object, the present invention also provides a usage method of a precision electric actuator based on intelligent control. The detachable circuit board is sent into the installation hole through the portable installation structure to be electrically plugged into the electronic control main board. The temperature sensor on the detachable circuit board can monitor the internal temperature of the electric actuator body in real time, and transmit the monitored temperature data to an external terminal through a control chip and a wireless module, achieving the purpose of remote intelligent control.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1. In the present invention, the temperature sensor, the control unit and the wireless module are separated and arranged on an independent detachable circuit board, and are electrically plugged into the electronic control main board inside the electric actuator body through the detachable circuit board. In this way, when the temperature sensor, the control unit or the wireless module is damaged, only the detachable circuit board needs to be removed for separate replacement, without disassembling and maintaining the entire electric actuator body. An installation hole is opened on the right side of the electric actuator body for the detachable circuit board to be inserted to be electrically plugged into the electronic control main board; the clamping member plays a role in clamping the detachable circuit board, and the inner pushing member can continuously push the clamping member leftward into the installation hole to enable the detachable circuit board to be accurately electrically plugged into the electronic control main board. When the clamping state needs to be released, the operator only needs to apply force actively. The assembly of the detachable circuit board is very convenient, without complex disassembly of the electric actuator body or large-scale manual intervention. At the same time, the portable installation structure is not only convenient to carry, but also can complete the assembly of the detachable circuit board in a narrow installation hole.

[0028] 2. In the present invention, the moving unit has a tendency to expand outward, can adhere to the inner peripheral wall of the installation hole, make the axis of the pipe body coincide with the axis of the installation hole, and further make the position of the electrical connection head align with the electrical connection seat, realizing stable and accurate plugging.

[0029] 3. In the present invention, the spaced space between the two fixed base blocks is provided for the hinge connection of the acting arm. The other end of the acting arm is hinged at the middle position between the two side plates. One end of the two side plates is hinged on the fixed protrusion. In this way, with the sliding of the moving sleeve, the included angle between the two side plates relative to the outer wall of the pipe can be flexibly adjusted; the other end of the two side plates is hinged with rollers, and the rollers can contact the inner peripheral wall of the mounting hole for positioning and can also reduce the frictional resistance during the movement.

[0030] 4. In the present invention, by providing a fixed disk and a force-receiving disk to compress the outer compression spring, and based on the acting force of the outer compression spring for continuously moving the force-receiving disk to the right, the pulley expands outwards, and then maintains a rolling fit with the inner peripheral wall of the mounting hole.

[0031] 5. In the present invention, by operating the drive shaft, the clamping plates can be controlled to approach or move away from each other through the connecting rod arm and the integrated arm, achieving the purpose of controlling the movement of multiple clamping plates with a single action, and the actual operation is convenient.

[0032] 6. In the present invention, the inner pipe is fixed in the inner opening through the fixed inner ring; the part of the inner pipe extending out of the inner opening towards the right is for the operator to hold; the drive shaft extends out of the shaft hole towards the right through the shaft hole and can be actively applied force by the operator for control.

[0033] 7. In the present invention, the inner cavity provides a moving space for the follower block, and the inner compression spring follows the acting force of the follower block for continuously moving to the right, so as to keep the clamping member in the clamping state under normal conditions.

[0034] 8. In the present invention, the inner sides of the clamping plates all have arc surfaces to adapt to the circular detachable circuit board; the setting of the backing plate and the recessed groove can allow the positioning block to extend in, and then limit the detachable circuit board so that it is clamped in the center. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic structural diagram of the embodiment;

[0036] Figure 2 is Figure 1 an enlarged view of part A in

[0037] Figure 3 is a schematic diagram of the inner pushing member in the embodiment;

[0038] Figure 4 is Figure 2 an enlarged view of part B in

[0039] Figure 5 is Figure 2 an enlarged view of part C in

[0040] Figure 6 is Figure 1 an enlarged view of part D in

[0041] Figure 7 is a schematic structural diagram of the clamping member in the embodiment;

[0042] Figure 8 is a schematic structural diagram of the front side of the detachable circuit board in the embodiment;

[0043] Figure 9 is a schematic structural diagram of the back side of the detachable circuit board in the embodiment.

[0044] In the figure: 11, electric actuator body; 12, electronic control main board; 121, electrical connection seat; 13, mounting hole; 21, detachable circuit board; 211, temperature sensor; 212, control chip; 213, wireless module; 22, electrical connection head; 31, pipe body; 311, inner opening; 32, fixed base block; 33, acting arm; 34, moving sleeve block; 35, fixed protrusion; 36, side plate; 37, pulley; 381, fixed disk; 382, force receiving disk; 383, outer compression spring; 41, front end cylinder; 411, front end protrusion; 42, rear end cylinder; 421, rear end protrusion; 43, connecting rod arm; 441, first connecting section; 442, second connecting section; 443, middle section; 45, clamping plate; 451, arc surface; 46, rotating shaft; 51, fixed shaft; 52, driving shaft; 61, inner tube; 611, shaft hole; 62, fixed inner ring; 63, inner cavity; 64, following block; 641, second through hole; 65, inner compression spring; 71, backing plate; 711, recessed groove; 81, positioning block; 91, second recessed area. Specific embodiments

[0045] The present invention will be further described in detail below with reference to the accompanying drawings.

[0046] As shown in the Figures 1 to 9 accompanying drawings;

[0047] The present embodiment discloses a precision electric actuator based on intelligent control, including an electric actuator body 11, in which an electric control main board 12 is fixedly arranged; the electric control main board 12 realizes remote intelligent control by wirelessly connecting to an external terminal. A detachable circuit board 21 is detachably inserted in the electric actuator body 11, and a temperature sensor 211, a control chip 212 and a wireless module 213 are arranged on the detachable circuit board 21, and the control chip 212 is electrically connected to the temperature sensor 211 and the wireless module 213 respectively; in the present embodiment, the model of the temperature sensor 211 is MCP9700, the model of the control chip 212 is STM8S003F3, and the model of the wireless module 213 is ESP8266, all of which are mature products. A mounting hole 13 is provided on the right side of the electric actuator body 11, and there is a mutually connected part between the mounting hole 13 and the electric control main board 12, and the detachable circuit board 21 can be electrically connected to the electric control main board 12 through the mounting hole 13;

[0048] It also includes a portable installation structure for clamping the detachable circuit board 21 and inserting the clamped detachable circuit board 21 into the installation hole 13 to make it electrically connected with the electronic control main board 12;

[0049] The portable installation structure includes:

[0050] A clamping member for clamping the detachable circuit board 21;

[0051] and an inner pushing member that can stick to the inner peripheral wall of the mounting hole 13 and continuously extend into the mounting hole 13 toward the left with the clamping member;

[0052] After the clamping member clamps the detachable circuit board 21, the clamping member will maintain the clamping state under normal conditions, and the clamping member can be released from the clamping state under the active force of the operator. The clamping state is the state of clamping the detachable circuit board 21, and the release state is the state of releasing the clamping of the detachable circuit board 21.

[0053] The inner push member includes a tube body 31 with a circular cross-sectional shape, and a plurality of movable units that can expand outward away from the tube body 31 or retract inward close to the tube body 31 are regularly arranged on the outer peripheral wall of the tube body 31. In this embodiment, the number of movable units is six; after the inner push member is extended into the mounting hole 13, each movable unit has a tendency to expand outward so as to be close to the inner peripheral wall of the mounting hole 13, and the tube body 31 coincides with the central axis of the mounting hole 13;

[0054] At the right end of the electronic control main board 12, an electrical connection seat 121 is welded. On the front side of the detachable circuit board 21, an electrical connection head 22 is welded. After the detachable circuit board 21 is clamped by the clamping member and extends into the mounting hole 13, the electrical connection head 22 faces left. After the central axes of the pipe body 31 and the mounting hole 13 coincide, the positions of the electrical connection head 22 and the electrical connection seat 121 are aligned.

[0055] In this embodiment, the electrical connection seat 121 and the electrical connection head 22 can adopt an annular conductive structure, such as the connection between a headphone and a headphone jack.

[0056] Among them, each set of movable units includes two fixed base blocks 32 fixed on the outer peripheral wall of the right half of the pipe body 31. There is a spaced space between the two fixed base blocks 32. In the spaced space, a working arm 33 is arranged. One end of the working arm 33 is hinged in the spaced space; a first shaft body is arranged between the working arm 33 and the two fixed bases;

[0057] A movable sleeve block 34 that can move along the pipe body 31 is sleeved on the outer peripheral wall of the left half of the pipe body 31. Each set of movable units includes a fixed protrusion 35 fixed on the movable sleeve block 34. On both opposite sides of the fixed protrusion 35, side plates 36 are hinged; a second shaft body is arranged between the two side plates 36 and the fixed protrusion 35, and a rotational connection is formed between the two side plates 36 and the second shaft body; the other end of the working arm 33 away from the spaced space extends to the middle position between the two side plates 36 and forms a hinge with the two side plates 36; a third shaft body is arranged at the middle position of the two side plates 36, and a rotational connection is formed between the working arm 33 and the third shaft body; a fourth shaft body is arranged between the ends of the two side plates 36 away from the fixed protrusion 35. A pulley 37 is hinged on the fourth shaft body, and a rolling fit is formed between the pulley 37 and the inner peripheral wall of the mounting hole 13 to reduce the frictional resistance.

[0058] The first shaft body, the second shaft body, the third shaft body and the fourth shaft body are all composed of bolts and nuts.

[0059] Among them, a fixed disk 381 is fixedly arranged at the left end of the pipe body 31, and a force-receiving disk 382 is fixedly arranged at the left end of the movable sleeve block 34. An external compression spring 383 is arranged between the fixed disk 381 and the force-receiving disk 382. The external compression spring 383 applies a force to continuously move the force-receiving disk 382 to the right. In this embodiment, on the side of the fixed disk 381 facing the force-receiving disk 382, there is a first recessed area for the left end of the external compression spring 383 to extend into, and on the side of the force-receiving disk 382 facing the fixed disk 381, there is a second recessed area 91 for the right end of the external compression spring 383 to extend into.

[0060] Among them, the clamping member includes a front-end cylinder 41, a rear-end cylinder 42, and multiple groups of connecting rod members. The front-end cylinder 41 is located on the left side of the rear-end cylinder 42. Each group of connecting rod members includes a front-end protrusion 411 and a rear-end protrusion 421 respectively fixed on the outer peripheral walls of the front-end cylinder 41 and the rear-end cylinder 42. A connecting rod arm 43 is hingedly arranged on the front-end protrusion 411, and the other end of the connecting rod arm 43 is hingedly provided with a clamping plate 45. The position where the connecting rod arm 43 is hinged to the clamping plate 45 is located in the right half of the clamping plate 45. An integrated arm is hingedly arranged on the rear-end protrusion 421, and the other end of the integrated arm is hingedly arranged on the left half of the clamping plate 45. The connecting rod arm 43 and the integrated arm are cross-connected, and a rotating shaft 46 is arranged at the intersection position of the two.

[0061] In this embodiment, the integrated arm is composed of a first connecting section 441, a second connecting section 442, and an intermediate section 443 that are connected in sequence. There is a connection area for the connecting rod arm 43 to pass through between the first connecting section 441 and the second connecting section 442, and the intermediate section 443 is located at the bottom of the connecting rod arm 43.

[0062] A fixed shaft 51 fixed inside the pipe body 31 is arranged on the front-end cylinder 41, and a driving shaft 52 extending out of the right end of the pipe body 31 and having a movable connection with the pipe body 31 is arranged on the rear-end cylinder 42.

[0063] Controlling the pipe body 31 to be stationary, an operator can control the clamping plates 45 to approach each other by pulling the driving shaft 52 to the right, so that the clamping member is in a clamping state.

[0064] Controlling the pipe body 31 to be stationary, an operator can control the clamping plates 45 to move away from each other by pushing the driving shaft 52 to the left, and release the clamping state of the clamping member.

[0065] Among them, the pipe body 31 has a hollow inner opening 311 inside, and the inner opening 311 coincides with the central axis of the pipe body 31. An inner pipe 61 extending along the direction of the inner opening 311 is arranged in the inner opening 311, and the inner pipe 61 extends to the right out of the inner opening 311 to be exposed outside. The inner pipe 61 is fixed to the inner opening 311 through a fixed inner ring 62, and a through shaft hole 611 is opened in the inner pipe 61. The driving shaft 52 extends into the shaft hole 611 and extends to the right out of the shaft hole 611 to be exposed outside. The driving shaft 52 is for an operator to apply force actively to release the clamping state of the clamping member. A first through hole for the fixed shaft 51 to pass through is opened in the rear-end cylinder 42. After passing through the first through hole, the fixed shaft 51 extends into the shaft hole 611, and the fixed shaft 51 is fixed on the inner wall of the inner pipe 61 to prevent the clamping member from moving.

[0066] Among them, an inner cavity 63 is provided in the inner tube 61. Both the fixed shaft 51 and the drive shaft 52 pass through the inner cavity 63. A follower block 64 located in the inner cavity 63 is fixedly arranged on the outer periphery of the drive shaft 52. A second through hole 641 for the fixed shaft 51 to pass through is provided in the follower block 64. An inner compression spring 65 is arranged in the inner cavity 63, and the inner compression spring 65 applies a force to continuously move the follower block 64 to the right.

[0067] Among them, a clamping area for clamping the detachable circuit board 21 is formed between the clamping plates 45. The inner sides of the clamping plates 45 all have arc surfaces 451, and the shape of the detachable circuit board 21 is circular;

[0068] A backing plate 71 capable of supporting the detachable circuit board 21 is fixedly arranged at the left end of the front end cylinder 41. A recessed groove 711 is formed by the cooperation of the backing plate 71 and the front end cylinder 41. A positioning block 81 capable of extending into the recessed groove 711 is fixedly arranged on the back surface of the detachable circuit board 21, and the positioning block 81 matches the recessed groove 711.

[0069] This embodiment also discloses a usage method of a precision electric actuator based on intelligent control. The detachable circuit board 21 is sent into the mounting hole 13 through the portable mounting structure to form an electrical plug-in connection with the electronic control main board 12. The temperature sensor 211 on the detachable circuit board 21 can monitor the internal temperature of the electric actuator body 11 in real time, and transmit the monitored temperature data to an external terminal through the control chip 212 and the wireless module 213, achieving the purpose of remote intelligent control.

[0070] The process of installing the detachable circuit board 21 is as follows:

[0071] 1. In the initial state, the drive shaft 52 moves to the right under the action of the force applied by the inner compression spring 65, and the clamping plates 45 approach each other, making the clamping member in a clamped state.

[0072] 2. Hold the part of the inner tube 61 extending out of the inner opening 311 by hand and press the drive shaft 52 to the left. The drive shaft 52 moves to the left, and the clamping plates 45 move away from each other, releasing the clamped state of the clamping member; put the positioning block 81 on the back surface of the detachable circuit board 21 into the recessed groove 711 to position the detachable circuit board 21, and then cancel the pressing on the drive shaft 52. The drive shaft 52 resets and moves to the right, and the clamping plates 45 approach each other to clamp the detachable circuit board 21, and the clamping member is in a clamped state.

[0073] 3. Push the inner pushing member into the mounting hole 13. The pulleys 37 on the six moving units will form a rolling fit with the inner peripheral wall of the mounting hole 13, making it easy for the inner pushing member to extend into the mounting hole 13; at the same time, the tube body 31 will coincide with the central axis of the mounting hole 13, aligning the electrical connection head 22 with the electrical connection seat 121.

[0074] 4. Continuously push in the inner pushing member until the electrical connector 22 is inserted into the electrical connection seat 121; then, hold the part of the inner tube 61 extending out of the inner opening 311 with the hand, press the drive shaft 52 to the left again, the drive shaft 52 moves leftward, and each clamping plate 45 moves away from each other to release the clamping state of the clamping member. Then, pull out the inner pushing member to complete the installation of the detachable circuit board 21.

[0075] The process of removing the detachable circuit board 21 is as follows:

[0076] Hold the part of the inner tube 61 extending out of the inner opening 311 with the hand, press the drive shaft 52 to the left to keep the clamping member in the released clamping state; after pushing the inner pushing member into the installation hole 13, cancel the pressing on the drive shaft 52, each clamping plate 45 moves closer to each other and clamps the detachable circuit board 21, and then pull out the inner pushing member to complete the removal of the detachable circuit board 21.

[0077] This specific embodiment is only an interpretation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications without creative contributions to this embodiment according to needs after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A precision electric actuator based on intelligent control, comprising an electric actuator body (11), wherein an electric control mainboard (12) is fixedly arranged inside the electric actuator body (11); characterized in that: A detachable circuit board (21) is detachably inserted in the electric actuator body (11), and a temperature sensor (211), a control chip (212) and a wireless module (213) are arranged on the detachable circuit board (21), and the control chip (212) is electrically connected to the temperature sensor (211) and the wireless module (213) respectively; a mounting hole (13) is provided on the right side of the electric actuator body (11), and a portion is interconnected between the mounting hole (13) and the electric control main board (12), and the detachable circuit board (21) can be electrically plugged into the electric control main board (12) through the mounting hole (13); It also includes a portable installation structure for clamping the detachable circuit board (21) and inserting the clamped detachable circuit board (21) into the installation hole (13) to form an electrical connection with the electric control main board (12); The portable installation structure includes: A clamping member for clamping a detachable circuit board (21); and an inner pushing member which can be attached to the inner peripheral wall of the mounting hole (13) and can continuously extend into the mounting hole (13) toward the left with the clamping member; After the clamping member clamps the detachable circuit board (21), the clamping member will maintain a clamping state under normal conditions, and the clamping member can release the clamping state under active force applied by an operator; The inner pushing member comprises a tube body (31), a movable unit is arranged on the outer peripheral wall of the tube body (31), the movable unit comprises a fixed protrusion (35), side plates (36) are hingedly arranged on both sides of the fixed protrusion (35), and a pulley (37) is hingedly arranged between the ends of the two side plates (36) away from the fixed protrusion (35); An external compression spring (383) is provided on the tube body (31); The clamping member comprises a front end column (41), a rear end column (42) and a plurality of connecting rod members, wherein the connecting rod members comprise cross-connected connecting rod arms (43) and integrated arms; one end of the connecting rod arm (43) is hingedly provided with a clamping plate (45), a clamping area is formed between the clamping plates (45), and the inner sides of the clamping plates (45) all have arc surfaces (451); A backing plate (71) is fixedly provided on the front end column (41), and a recessed groove (711) is formed between the backing plate (71) and the front end column (41); A driving shaft (52) extending from the right end of the tube body (31) and movably connected to the tube body (31) is arranged on the rear end column (42).

2. According to claim 1, a precision electric actuator based on intelligent control is characterized in that: The inner pushing member comprises a tube body (31) having a circular cross-sectional shape, and a plurality of movable units capable of expanding outward away from the tube body (31) or shrinking inward near the tube body (31) are regularly arranged on the outer peripheral wall of the tube body (31); after the inner pushing member is extended into the mounting hole (13), each of the movable units has a tendency to expand outward so as to be close to the inner peripheral wall of the mounting hole (13), and the center axis of the tube body (31) coincides with the center axis of the mounting hole (13); An electrical connection seat (121) is welded on the right end of the electric control main board (12), and an electrical connection head (22) is welded on the front of the detachable circuit board (21). After the detachable circuit board (21) is clamped by the clamping member and extends into the mounting hole (13), the electrical connection head (22) faces the left side, and after the central axis of the tube body (31) and the mounting hole (13) coincide, the electrical connection head (22) is aligned with the electrical connection seat (121).

3. According to claim 2, a precision electric actuator based on intelligent control is characterized in that: Each group of the movable units comprises two fixed base blocks (32) fixed on the outer peripheral wall of the right half of the tube body (31), a spacing space is provided between the two fixed base blocks (32), an action arm (33) is provided in the spacing space, and one end of the action arm (33) is hingedly provided in the spacing space; A movable sleeve block (34) is sleeved on the outer peripheral wall of the left half of the tube body (31) and can move along the tube body (31). Each group of the movable units includes a fixed protrusion (35) fixed on the movable sleeve block (34), and side plates (36) are hingedly arranged on opposite sides of the fixed protrusion (35); the other end of the action arm (33) away from the spacing space extends to the middle position of the two side plates (36) and is hinged with the two side plates (36); a pulley (37) is hingedly arranged between the ends of the two side plates (36) away from the fixed protrusion (35).

4. According to claim 3, a precision electric actuator based on intelligent control is characterized in that: A fixed disk (381) is fixedly provided at the left end of the tube body (31), a force-bearing disk (382) is fixedly provided at the left end of the movable sleeve block (34), an external compression spring (383) is provided between the fixed disk (381) and the force-bearing disk (382), and the external compression spring (383) is a force for the force-bearing disk (382) to continuously move rightward.

5. According to claim 2, a precision electric actuator based on intelligent control is characterized in that: The clamping member comprises a front end column (41), a rear end column (42) and a plurality of groups of connecting rod members, each group of the connecting rod members comprises a front end protrusion (411) and a rear end protrusion (421) respectively fixed on the outer peripheral walls of the front end column (41) and the rear end column (42); a connecting rod arm (43) is hingedly provided on the front end protrusion (411), and the position where the connecting rod arm (43) and the clamping plate (45) are hinged is located at the right half of the clamping plate (45); an integrated arm is hingedly provided on the rear end protrusion (421), and the other end of the integrated arm is hingedly provided on the left half of the clamping plate (45); the connecting rod arm (43) and the integrated arm are cross-connected, and a rotating shaft (46) is provided at the intersection of the two. The front end column (41) is provided with a fixed shaft (51) fixed in the tube body (31), and the rear end column (42) is provided with a driving shaft (52) extending out of the right end of the tube body (31) and movably connected to the tube body (31); The control tube body (31) is kept stationary, and the operator can control the clamping plates (45) to move away from each other by pushing the driving shaft (52) to the left, thereby releasing the clamping state of the clamping member.

6. According to claim 5, a precision electric actuator based on intelligent control is characterized in that: The tube body (31) has a hollow inner opening (311) inside, and the inner opening (311) coincides with the central axis of the tube body (31); an inner tube (61) extending along the direction of the inner opening (311) is arranged in the inner opening (311), and the inner tube (61) extends rightward out of the inner opening (311) to be exposed to the outside; the inner tube (61) is fixed to the inner opening (311) by a fixing inner ring (62), and the inner tube (61) is provided with The drive shaft (52) extends into the shaft hole (611) and extends rightward out of the shaft hole (611) to be exposed to the outside, and the drive shaft (52) is used by an operator to actively apply force to release the clamping state of the clamping member; a first through hole is provided in the rear end column (42) for the fixed shaft (51) to pass through, and the fixed shaft (51) passes through the first through hole and then extends into the shaft hole (611), and the fixed shaft (51) is fixed on the wall of the inner tube (61).

7. A precision electric actuator based on intelligent control according to claim 6, characterized in that: The inner tube (61) is provided with an inner cavity (63), the fixed shaft (51) and the driving shaft (52) both pass through the inner cavity (63), a follower block (64) located in the inner cavity (63) is fixedly provided on the outer periphery of the driving shaft (52), a second through hole (641) is provided in the follower block (64) for the fixed shaft (51) to pass through, an inner compression spring (65) is provided in the inner cavity (63), and the inner compression spring (65) is a force for the follower block (64) to continuously move rightward.

8. The intelligent control-based precision electric actuator according to claim 5, characterized in that: A clamping area for clamping the detachable circuit board (21) is formed between the clamping plates (45), the inner side of each clamping plate (45) has a curved surface (451), and the detachable circuit board (21) is circular in shape; A pad (71) capable of supporting the detachable circuit board (21) is fixedly arranged at the left end of the front end column (41); a recessed groove (711) is formed in cooperation with the pad (71) and the front end column (41); a positioning block (81) capable of extending into the recessed groove (711) is fixedly arranged on the back of the detachable circuit board (21); and the positioning block (81) matches the recessed groove (711).

9. A method for using a precision electric actuator based on intelligent control, applied to the precision electric actuator based on intelligent control according to any one of claims 1 to 8, characterized in that: The detachable circuit board (21) is inserted into the mounting hole (13) through the portable mounting structure so as to be electrically plugged into the electric control main board (12). The temperature sensor (211) on the detachable circuit board (21) can monitor the internal temperature of the electric actuator body (11) in real time, and transmit the monitored temperature data to an external terminal through a control chip (212) and a wireless module (213), thereby achieving the purpose of remote intelligent control.

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