Actuator and coater

Abstract

The utility model relates to the technical field of coating die precision control, specifically relates to an actuating mechanism and coating machine. An actuating mechanism, include: integrated seat body, displacement piece, be located integrated seat body one side, displacement sensor, displacement sensor be located integrated seat body, displacement sensor is equipped with elastic probe, elastic probe with displacement piece is connected, elastic probe with displacement piece same side setting, displacement piece is driven ground to move towards or away from integrated seat body, displacement probe follows displacement piece movement, displacement sensor senses displacement piece's movement distance. The utility model provides an actuating mechanism and coating machine to solve in traditional actuating mechanism, multiple installation error's superposition leads to the overall assembly error of screw rod and displacement sensor between big, influence the whole mechanism's assembly precision problem.

Description

Technical Field

[0001] This utility model relates to the field of coating die head precision control technology, specifically to an actuator and a coating machine. Background Technology

[0002] The actuator is a technology used in fully automated coating processes to automatically adjust the coating surface density, replacing manual labor. It is widely used in wide-range flow regulation in thin film coating fields such as lithium batteries. Its working principle is to use a micro motor to drive a lead screw to form vertical movement, thereby automatically adjusting the discharge flow rate. It uses a closed-loop system to accurately adjust the surface density value detected in real time. Compared with manual adjustment, it has the advantages of fast speed, accurate adjustment, high adjustment precision, and no need for personnel operating experience.

[0003] Adjustment accuracy is a key technical indicator of actuators; higher accuracy means a stronger ability to precisely adjust surface density.

[0004] Traditional actuators use a split mounting structure and displacement sensor, usually connected by a lead screw and gearbox. The gearbox is connected to one housing, which introduces installation errors. The separate displacement sensor is connected to another housing, which also introduces installation errors. There are installation errors during the assembly of the two housings. The superposition of multiple installation errors increases the overall assembly error between the lead screw and displacement sensor, affecting the assembly accuracy of the entire mechanism. Utility Model Content

[0005] In view of this, the present invention provides an actuator and a coating machine to solve the problem that in traditional actuators, the superposition of multiple installation errors leads to a large overall assembly error between the lead screw and the displacement sensor, which affects the assembly accuracy of the entire mechanism.

[0006] In a first aspect, this utility model provides an actuator, comprising:

[0007] Integrated base;

[0008] A displacement component is provided on one side of the integrated base;

[0009] A displacement sensor is provided on the integrated base. The displacement sensor has an elastic probe that abuts against the displacement member. The elastic probe is in a compressed state and is located on the same side as the displacement member. The displacement member is driven to move toward or away from the integrated base. The elastic probe follows the movement of the displacement member. The displacement sensor senses the movement distance of the displacement member.

[0010] In this application, the displacement component and the displacement sensor are respectively connected to the integrated base, that is, the two use the integrated base as the installation reference, which avoids the installation error that exists when the displacement component and the displacement sensor are connected to different housings respectively, overcomes the disadvantage that the accuracy of the assembly process is not easy to guarantee, effectively improves the production yield and product stability, ensures the assembly accuracy of the entire mechanism, and reduces the rework rate.

[0011] In one alternative embodiment, the displacement member is provided with a sensing plate that abuts against the elastic probe.

[0012] In one alternative embodiment, the displacement sensor is disposed through the integrated base and is fixedly connected to the first side plate of the integrated base.

[0013] In one optional embodiment, the displacement sensor further includes a sensor housing and a scale, the scale being disposed inside the sensor housing, and the scale cooperating with the elastic probe to calculate the displacement of the elastic probe.

[0014] In one optional embodiment, a power assembly is further included, the power assembly comprising a drive member and a gear transmission box, the drive member and the displacement member being disposed on the same side, and the drive member and the gear transmission box being disposed on opposite sides of the integrated base.

[0015] In one alternative embodiment, the gearbox includes an input end and an output end, the output shaft of the drive unit passes through the integrated housing to connect to the input end, and the screw of the displacement unit passes through the integrated housing to connect to the output end.

[0016] In one alternative embodiment, a housing assembly is further included, the housing assembly including a base plate and an intermediate housing, the base plate, the intermediate housing and the integrated base housing enclosing the drive member therein, with the nut of the displacement member extending out of the base plate from one end opposite to the integrated base housing.

[0017] In one alternative embodiment, the housing assembly further includes a cover that, together with the integrated base, encloses the gearbox.

[0018] Secondly, this utility model also provides a coating machine, including the aforementioned actuator.

[0019] In an alternative embodiment, a coating die head is also included, and the actuator is connected to the T-block of the coating die head.

[0020] The actuator provided by this utility model has the following advantages: (1) The displacement component and the displacement sensor are connected to the integrated base respectively, that is, the two use the integrated base as the installation reference, which avoids the installation error that exists when the displacement component and the displacement sensor are connected to different shells respectively, overcomes the disadvantage that the accuracy of the assembly process is not easy to guarantee, effectively improves the production yield and product stability, ensures the assembly accuracy of the whole mechanism, and reduces the rework rate; (2) The position component, the drive component and the displacement sensor can all be installed on the integrated base at one time, which ensures the assembly accuracy; (3) The drive component and the rotating rod are set on the same side, and the layout is more compact; (4) The displacement sensor is an integrated sensor, that is, the structure of the sensor is optimized into the sensor shell, which improves the detection accuracy and stability. The detection accuracy is not affected by the structural assembly accuracy through the elastic probe and the lead screw nut, which makes it easy to achieve a true resolution of 0.1um; (5) The controller forms a closed-loop control to ensure that the output accuracy is within 1um. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the actuator of this utility model after removing the housing assembly;

[0023] Figure 2 This is a schematic diagram of the actuator according to an embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the displacement component according to an embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram of the integrated base according to an embodiment of the present utility model.

[0026] Explanation of reference numerals in the attached drawings: 1. Displacement sensor; 101. Elastic probe; 2. Integrated base; 201. Fixing plate; 202. Clamping block; 203. First side plate; 204. Second side plate; 205. First through hole; 206. Second through hole; 207. Third through hole; 208. Fastening hole; 209. Slide rail; 3. Gear transmission box; 4. Driving component; 5. Displacement component; 501. Sensing plate; 502. Screw; 503. Nut; 504. Slider; 6. Housing assembly; 601. Intermediate housing; 602. Base plate; 603. Cover; 604. First enclosed space; 605. Second enclosed space. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] The following is combined with Figures 1 to 4 The following describes embodiments of the present invention.

[0029] According to an embodiment of the present invention, an actuator is provided, comprising: an integrated base 2; a displacement member 5 disposed on one side of the integrated base 2; and a displacement sensor 1 disposed on the integrated base 2, the displacement sensor 1 having an elastic probe 101 abutting against the displacement member 5, the elastic probe 101 being in a compressed state, the elastic probe 101 being disposed on the same side as the displacement member 5, the displacement member 5 being driven to move toward or away from the integrated base 2, the elastic probe 101 following the movement of the displacement member 5, and the displacement sensor 1 sensing the movement distance of the displacement member 5.

[0030] In this application, the displacement component 5 and the displacement sensor 1 are respectively connected to the integrated base 2. That is, the two use the integrated base 2 as the mounting reference base, which avoids the installation error that exists when the displacement component 5 and the displacement sensor 1 are connected to different housings respectively. This overcomes the disadvantage that the accuracy of the assembly process is not easy to guarantee, effectively improves the production yield and product stability, ensures the assembly accuracy of the entire mechanism, and reduces the rework rate.

[0031] In one embodiment, such as Figure 1 , Figure 2 As shown, the displacement element 5 is equipped with a sensing plate 501, which abuts against the elastic probe 101. Specifically, the displacement element 5 is a lead screw nut, which is driven to move along its own length direction ( Figure 1 The displacement sensor 1 moves along the Z-axis direction and then moves by contacting the elastic probe 101 with the sensing plate 501 of the lead screw nut. Since the elastic probe 101 moves with the displacement component 5, the detection accuracy of the displacement sensor 1 is not affected by the assembly accuracy, ensuring the accuracy of the detection and facilitating the achievement of a true resolution of 0.1µm.

[0032] In one embodiment, such as Figure 1 , Figure 2 As shown, the displacement sensor 1 is disposed through the integrated base 2, and the displacement sensor 1 is fixedly connected to the first side plate 203 of the integrated base 2. In this embodiment, as... Figure 1As shown, a clamping block 202 is provided on the side of the first side plate 203, which clamps the displacement sensor 1. It should be noted that the displacement component 5 and the clamping block 202 are located on both sides of the fixing plate 201 of the integrated base 2.

[0033] In one embodiment, such as Figure 1 , Figure 2 As shown, the displacement sensor 1 also includes a sensor housing and a scale. The scale is located inside the sensor housing and cooperates with the elastic probe 101 to calculate the displacement of the elastic probe 101, thereby obtaining the distance of the movement displacement of the elastic probe 101. In this embodiment, the displacement sensor 1 is a SENTHER L9001 series pen-type LVDT linear displacement sensor 1.

[0034] In one embodiment, such as Figure 1 , Figure 2 As shown, it also includes a power assembly, which comprises a drive component 4 and a gear transmission box 3. The drive component 4 and the displacement component 5 are disposed on the same side, and the drive component 4 and the gear transmission box 3 are respectively disposed on both sides of the integrated base 2. Specifically, the drive component 4 is a servo motor. In this embodiment, by arranging the drive component 4, the gear transmission box 3, and the displacement component 5 on the same integrated base, assembly accuracy can be effectively guaranteed, and it has the advantage of a compact layout.

[0035] In one embodiment, such as Figure 1 , Figure 2 , Figure 4 As shown, the gear transmission box 3 includes an input end and an output end. The output shaft of the drive member 4 passes through the first through hole 205 of the integrated base 2 to connect with the input end. The screw 502 of the displacement member 5 passes through the second through hole 206 of the integrated base 2 to connect with the output end, so that the output end drives the screw 502 to rotate.

[0036] In this embodiment, as Figure 1 , Figure 3As shown, the integrated base 2 also has a third through hole 207, through which the displacement sensor 1 is installed. The gear transmission box 3 also contains a gear set. The output shaft of the drive component 4 drives the input end to rotate, which in turn drives the gear set. The gear set drives the output end, which in turn drives the screw 502 of the displacement component 5 to rotate. The screw 502 drives the nut 503 to reciprocate along the length of the screw 502. The nut 503 is connected to the sensing plate 501. Specifically, the screw 502, nut 503, and steel balls constitute a ball screw linear module. It should be noted that the drive component 4 is fixedly connected to the integrated base 2 by fasteners, and the gear transmission box 3 is fixedly connected to the integrated base 2 by fasteners (i.e., the fasteners pass through the fastening hole 208 to fix the gear transmission box 3 and the integrated base 2). Specifically, the fasteners are bolts.

[0037] In this embodiment, as Figure 1 , Figure 3 As shown, in order to ensure the stability of the movement of the displacement member 5, the displacement member 5 is also provided with a slider 504 connected to the nut 503, and a slide rail 209 is provided on the side of the second side plate 204, and the slider 504 is adapted to the slide rail 209.

[0038] In one embodiment, such as Figure 1 , Figure 2 As shown, the housing assembly 6 also includes a base plate 602 and an intermediate housing 601. The base plate 602, the intermediate housing 601, and the integrated base 2 enclose the drive member 4. The nut 503 of the displacement member 5 extends out of the base plate 602 at one end away from the integrated base 2. Figure 1 , Figure 2 As shown, the integrated base also includes a second side plate 204. The fixed plate 201 and the second side plate 204 of the integrated base 2, the intermediate shell 601 and the bottom plate 602 form a first enclosing space 604 to enclose the components on one side of the drive member 4. That is, the drive member 4, the displacement member 5, the elastic probe 101 of the displacement sensor 1, and a part of the displacement member 5 are located in the first enclosing space 604, and a part of the nut 503 of the displacement member 5 will extend out of the first enclosing space 604. The nut 503 extending out of the first enclosing space 604 is connected to the T-block of the coating die head.

[0039] In one embodiment, such as Figure 1 , Figure 2 As shown, the housing assembly 6 also includes a cover 603, which, together with the integrated base 2, encloses the gear transmission box 3. Figure 1 , Figure 2As shown, the cover 603, the first side plate 203 of the integrated base 2 and the bottom plate 602 form a second enclosing space 605 to enclose the components on one side of the gear transmission box 3. That is, the gear transmission box 3, a part of the displacement sensor 1 and the clamping block 202 are all located in the second enclosing space 605.

[0040] According to an embodiment of the present invention, another aspect provides a coating machine including the aforementioned actuator.

[0041] In one embodiment, such as Figure 1 , Figure 2 As shown, it also includes a coating die and a controller. The actuator is connected to the T-block of the coating die, and the actuator drives the T-block of the coating die to move, thereby adjusting the gap between the upper and lower dies of the coating die. In this embodiment, the controller is connected to the drive unit 4 and the displacement sensor 1 respectively. The displacement sensor 1 transmits displacement data to the controller in real time, and the controller then adjusts the rotation speed of the drive unit 4 to form a closed-loop control, ensuring that the output accuracy is within 1µm.

[0042] In practical use, the controller issues a command, and the drive component 4 drives the displacement component 5 to move through the gear transmission box 3. The nut 503 of the displacement component 5 moves along its own length direction. Figure 1 The nut 503 moves along the Z-axis direction, which drives the sensing plate 501 to move. The sensing plate 501 causes the elastic probe 101 to move accordingly. The scale inside the displacement sensor 1 calculates the displacement of the elastic probe 101 and transmits the data to the controller in real time. The controller then issues a command to control the rotation speed of the drive component 4.

[0043] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An actuator, characterized in that, include: Integrated base (2); Displacement component (5); Located on one side of the integrated base (2); A displacement sensor (1) is disposed on the integrated base (2). The displacement sensor (1) is provided with an elastic probe (101). The elastic probe (101) abuts against the displacement member (5). The elastic probe (101) is in a compressed state. The elastic probe (101) and the displacement member (5) are disposed on the same side. The displacement member (5) is driven to move toward or away from the integrated base (2). The elastic probe (101) follows the movement of the displacement member (5). The displacement sensor (1) senses the movement distance of the displacement member (5).

2. The actuator according to claim 1, characterized in that, The displacement member (5) is provided with a sensing plate (501), which abuts against the elastic probe (101).

3. The actuator according to claim 2, characterized in that, The displacement sensor (1) is disposed through the integrated base (2) and is fixedly connected to the first side plate (203) of the integrated base (2).

4. The actuator according to claim 3, characterized in that, The displacement sensor (1) also includes a sensor housing and a scale. The scale is located inside the sensor housing and cooperates with the elastic probe (101) to calculate the displacement of the elastic probe (101).

5. The actuator according to any one of claims 2-4, characterized in that, It also includes a power assembly, which includes a drive unit (4) and a gear transmission box (3). The drive unit (4) and the displacement unit (5) are arranged on the same side. The drive unit (4) and the gear transmission box (3) are respectively located on both sides of the integrated seat (2).

6. The actuator according to claim 5, characterized in that, The gearbox (3) includes an input end and an output end. The output shaft of the drive member (4) passes through the integrated base (2) to connect with the input end, and the screw (502) of the displacement member (5) passes through the integrated base (2) to connect with the output end.

7. The actuator according to claim 5, characterized in that, It also includes a housing assembly (6), which further includes a base plate (602) and an intermediate housing (601), the base plate (602), the intermediate housing (601) and the integrated base (2) enclosing the drive member (4), and the nut (503) of the displacement member (5) extending out of the base plate (602) from one end opposite to the integrated base (2).

8. The actuator according to claim 7, characterized in that, The housing assembly (6) further includes a cover (603) which, together with the integrated base (2), encloses the gearbox (3).

9. A coating machine, characterized in that, Includes the executing mechanism described in any one of claims 1-8.

10. The coating machine according to claim 9, characterized in that, It also includes a coating die head, and the actuator is connected to the T-block of the coating die head.

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