A pressing device and method with deviation correction function

Abstract

The present invention discloses a pressing device with a deviation correction function, comprising a bottom plate; a needle plate, arranged on the bottom plate, and provided with a probe; a carrier plate, floatingly arranged on the needle plate, the middle part of the carrier plate is used to place a circuit board to be tested, the probe can pass through the carrier plate and contact the circuit board to be tested, and first measuring pieces are respectively arranged at the four diagonal positions of the carrier plate, the first measuring piece is used to detect the inclination of the four corners of the carrier plate, and two first guide sleeves are arranged on the carrier plate; a pressing plate, movably arranged above the carrier plate, and provided with a second measuring piece on the pressing plate, the second measuring piece is used to detect the inclination of the four corners of the pressing plate, and the lower surface of the pressing plate is provided with a first guide pin that matches the first guide sleeve; a driving component, arranged on the bottom plate, and the driving component is used to adjust the inclination of the four corners of the pressing plate, and drive the pressing plate to move up and down. The inclination angle of the carrier plate is monitored in real time by the first measuring piece, and the pressing plate is adjusted by the driving component so that the pressing plate is kept in a parallel state and pressed to a specified height, and the whole process is closed-loop controlled to avoid the situation where the pressing plate crushes the test piece.

Description

Technical Field

[0001] The invention relates to the technical field of furniture products, and in particular to a pressing device with a deviation correction function. Background Art

[0002] In the testing equipment, the motherboard is fixed in five directions: front, back, left, right, and bottom. The pressure plate fixes the motherboard in one direction: upward. However, in the process of pressing the pressure plate downward, a "pure mechanical guiding and positioning" solution is usually adopted, which is an open-loop guiding and positioning solution. It is easy to cause accidents of crushing the motherboard under test due to assembly errors and loose structure. Summary of the invention

[0003] The present invention provides a pressing device with a deviation correction function, aiming to solve at least one of the technical problems existing in the prior art.

[0004] The technical solution of the first aspect of the present invention relates to a laminating device with a deviation correction function, comprising:

[0005] Base plate;

[0006] A needle plate, arranged on the bottom plate, and a probe is arranged on the needle plate;

[0007] A carrier plate is floatingly arranged on the needle plate, the middle part of the carrier plate is used to place the circuit board to be tested, the probe can pass through the carrier plate and contact the circuit board to be tested, the four diagonal parts of the carrier plate are respectively provided with first measuring pieces, the first measuring pieces are used to detect the inclination of the four corners of the carrier plate, and two first guide sleeves are arranged on the carrier plate;

[0008] A pressing plate, movably disposed above the carrier plate, a second measuring piece is disposed on the pressing plate, the second measuring piece is used to detect the inclination of the four corners of the pressing plate, and a first guide pin matching the first guide sleeve is disposed on the lower surface of the pressing plate;

[0009] The driving assembly is arranged on the bottom plate, and is used for adjusting the inclination of the four corners of the pressing plate and driving the pressing plate to move up and down.

[0010] According to some embodiments of the present invention, two second guide pins are provided on the upper surface of the needle plate, and two second guide sleeves are provided at corresponding positions on the carrier plate.

[0011] According to some embodiments of the present invention, the driving assembly includes four motors, and the four motors are respectively arranged at the four corners of the pressure plate. The output shaft of the motor is connected to a screw rod, and nuts and bearings matching the screw rod are provided at the four diagonal positions of the pressure plate. Each of the motors can be used to adjust the inclination amount of the corresponding angle of the pressure plate, and the four motors work together to drive the pressure plate to move up and down.

[0012] According to some embodiments of the present invention, it further includes a support plate and a fixing plate, wherein the support plate is disposed on the bottom plate, the fixing plate is connected to the support plate and is located above the bottom plate, and the motor is disposed on the fixing plate.

[0013] According to some embodiments of the present invention, reinforcing ribs are provided between the support plate and the fixing plate.

[0014] According to some embodiments of the present invention, a plurality of springs are disposed on the needle plate, and the upper ends of the springs abut against the carrier plate.

[0015] According to some embodiments of the present invention, the first measuring component is configured as an acceleration sensor.

[0016] According to some embodiments of the present invention, the second measuring member is configured as a digital level.

[0017] According to some embodiments of the present invention, handles are provided on both sides of the base plate, and a foot pad is provided on the bottom.

[0018] The technical solution of the second aspect of the present invention relates to a deviation correction method for a lamination device, comprising the following steps:

[0019] Detect the tilt angle of the carrier plate and the pressure plate;

[0020] When the inclination angle of the pressing plate is not equal to the inclination angle of the carrier plate, adjusting the inclination angle of the pressing plate until the inclination angles of the pressing plate and the carrier plate are equal;

[0021] The pressing plate is driven to press downward until the pressing plate reaches a set position.

[0022] According to some embodiments of the present invention, the following steps are also included:

[0023] When the tilt angle of the carrier plate is greater than a first set angle, an alarm action is executed.

[0024] According to some embodiments of the present invention, the step of driving the pressing plate to press down comprises:

[0025] The current inclination angles of the carrier plate and the pressing plate are obtained. If the inclination angle of the carrier plate and the pressing plate are not equal, the pressing plate is driven to return to the initial position.

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

[0027] 1. When starting the guiding process, the position offset and angle tilt are automatically detected, and the angle and position are automatically adjusted to adapt to the current position offset and angle tilt to ensure smooth cooperation between the guide column and the guide sleeve during operation. During the guiding process, the abnormal vibration and angle tilt during the guiding process are automatically detected to determine whether there is a risk of jamming and excessive friction caused by the guide cooperation and different axes, and the alignment position and angle are automatically adjusted to adapt to the current "position offset" and "angle tilt" to ensure smooth introduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an overall schematic diagram of a pressing device with a deviation correction function according to an embodiment of the present invention;

[0029] Figure 2 It is an exploded view of a pressing device with a deviation correction function according to an embodiment of the present invention.

[0030] Figure Number:

[0031] Base plate 100, support plate 110, fixing plate 120, reinforcing ribs 130, handle 140, foot pad 150;

[0032] Needle plate 200, second guide pin 210, spring 220;

[0033] Carrier plate 300, first measuring member 310, first guide sleeve 320, second guide sleeve 330;

[0034] A pressing plate 400, a second measuring member 410, a first guide pin 420, and a bearing 430;

[0035] Driving assembly 500 , motor 510 , screw rod 520 . DETAILED DESCRIPTION

[0036] The following content will describe several embodiments of the present invention, including embodiments corresponding to the drawings. It can be understood that the drawings are used to assist in understanding the technical features and technical solutions of the present invention, and should not be understood as limiting the scope of protection of the present invention.

[0037] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the present invention, so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other without conflict.

[0038] It should be noted that, unless otherwise clearly defined, when a feature is referred to as "fixed", "connected", "installed" or "set on" another feature, it can be directly "fixed", "connected", "installed" or "set on" another feature, or it can be indirectly "fixed", "connected", "installed" or "set on" another feature. The words "fixed", "connected", "installed" or "set on" should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0039] It should be noted that the description of the orientation or position relationship indicated by up, down, left, right, top, bottom, front, back, inside, outside, etc. used in the present invention is based on the orientation or position relationship of the drawings or embodiments, and is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] It should be noted that the term "and / or" used in the present invention includes any combination of one or more related listed items, "above", "below", "within", etc. are understood to include the number itself.

[0041] It should be noted that, in the present invention, the description of first and second is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0042] It should be noted that, unless otherwise clearly defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art. The terms used in this specification are only for describing specific embodiments and are not intended to limit the present invention.

[0043] Reference Figure 1 and Figure 2The technical solution of the first aspect of the present invention relates to a laminating device with a deviation correction function, comprising a base plate 100; a needle plate 200, which is arranged on the base plate 100 and has a probe on the needle plate 200; a carrier plate 300, which is floatingly arranged on the needle plate 200, and the middle part of the carrier plate 300 is used to place the circuit board to be tested, and the probe can pass through the carrier plate 300 to contact the circuit board to be tested, and the four diagonal parts of the carrier plate 300 are respectively provided with first measuring pieces 310, and the first measuring pieces 310 are used to detect the inclination of the four corners of the carrier plate 300. The carrier plate 300 is provided with two first guide sleeves 320; the pressing plate 400 is movably arranged above the carrier plate 300, and the pressing plate 400 is provided with a second measuring piece 410, and the second measuring piece 410 is used to detect the inclination of the four corners of the pressing plate 400, and the lower surface of the pressing plate 400 is provided with a first guide pin 420 that cooperates with the first guide sleeve 320; the driving assembly 500 is arranged on the base plate 100, and the driving assembly 500 is used to adjust the inclination of the four corners of the pressing plate 400, and drive the pressing plate 400 to move up and down.

[0044] The measuring principle of the above-mentioned pressing device with correction function is as follows: the inclination of the four corners of the carrier plate 300 is detected in real time by the first measuring pieces 310 on the four corners of the carrier plate 300, and the detection results are sent to the central control system, and the central control system sends a signal to the driving component 500. While the driving component 500 drives the pressing plate 400 to press down, the angles of the four corners of the pressing plate 400 are adjusted so that the pressing plate 400 and the carrier plate 300 are in a parallel state when the pressing plate 400 is pressed onto the pressing plate 300, ensuring that the first guide pin 420 is correctly inserted into the first guide sleeve 320. The whole process is measured and adjusted in real time. At the same time, the second measuring piece 410 also detects the inclination of the four corners of the pressing plate 400 and sends a signal to the central control system to ensure that the pressing plate 400 can remain parallel to the carrier plate 300 during the whole process. In the actual test process, the carrier plate 300 is mostly in a horizontal state, that is, the pressing plate 400 is kept in a horizontal state by the driving component 500 and pressed down, and the above-mentioned method is used to correct the deviation in real time during the pressing process.

[0045] According to some embodiments of the present invention, two second guide pins 210 are provided on the upper surface of the needle plate 200, and two second guide sleeves 330 are provided at corresponding positions on the carrier plate 300. The second guide pins 210 and the second guide sleeves 330 are used together to locate the position of the carrier plate 300 on the needle plate 200 to ensure that the two are correctly assembled.

[0046] According to some embodiments of the present invention, the driving assembly 500 includes four motors 510, which are disposed at four corners of a pressure plate 400. The output shaft of the motor 510 is connected to a screw rod 520. Nuts and bearings 430 matching the screw rod 520 are disposed at four diagonal positions of the pressure plate 400. Each motor 510 can be used to individually adjust the inclination amount of the corresponding angle of the pressure plate 400. The four motors 510 work together to drive the pressure plate 400 to move up and down.

[0047] According to some embodiments of the present invention, a support plate 110 and a fixed plate 120 are further included. The support plate 110 is arranged on the base plate 100, the fixed plate 120 is connected to the support plate 110 and is located above the base plate 100, and the motor 510 is arranged on the fixed plate 120. In the present embodiment, the fixed plate 120 and the motor 510 are both arranged above the pressing plate 400. In some other embodiments, the fixed plate 120 and the motor 510 can also be directly arranged on the base plate 100, that is, located below the pressing plate 100, and the angle adjustment of the pressing plate 100 and the process of pressing down and moving up can also be realized.

[0048] According to some embodiments of the present invention, a reinforcing rib 130 is disposed between the support plate 110 and the fixing plate 120 .

[0049] According to some embodiments of the present invention, a plurality of springs 220 are provided on the needle plate 200, and the upper ends of the springs 220 abut against the carrier plate 300, that is, the needle plate 200 and the carrier plate 300 are in a floating connection, so that the carrier plate 300 can be buffered to a certain extent during the pressing process of the pressure plate 400, and the rigid connection is transformed into a flexible connection to prevent the carrier plate 300 or the test piece from being crushed due to excessive pressure. Since the carrier plate 300 is floatingly connected to the needle plate 200, the carrier plate 300 may be offset during the pressing process. At this time, the real-time adjustment of the pressure plate 400 is achieved through the above principle or the following operating steps to ensure that the pressure plate 400 and the carrier plate 300 always remain parallel, and the first guide pin 420 can be correctly inserted into the first guide sleeve 320.

[0050] According to some embodiments of the present invention, the first measuring component 310 is configured as an acceleration sensor, and the second measuring component 410 is configured as a digital level.

[0051] According to some embodiments of the present invention, handles 140 are further provided on both sides of the base plate 100 , and a foot pad 150 is provided at the bottom.

[0052] The technical solution of the second aspect of the present invention relates to a method for correcting the deviation of a laminating device, which is applied to any of the above-mentioned laminating devices with a correcting function, and comprises the following steps:

[0053] First embodiment

[0054] S100. Detect the inclination angle of the carrier plate and the pressure plate;

[0055] S200. When the inclination angle of the pressing plate is not equal to the inclination angle of the carrier plate, adjusting the inclination angle of the pressing plate until the inclination angles of the pressing plate and the carrier plate are equal;

[0056] S300. Drive the pressing plate downward until the pressing plate reaches a set position.

[0057] In step S100, the inclination angles of the four diagonals of the carrier 300 are detected by the first measuring piece 310, and the inclination angles of the four diagonals of the pressing plate 400 are synchronously detected by the second measuring piece 410; in step S200, the inclination angle of each diagonal of the pressing plate 400 is compared with the inclination angle of each diagonal of the carrier 300. If any of the angles are different, the motor 510 installed on the corresponding diagonal drives the diagonal to adjust up and down until the angle of each diagonal of the pressing plate 400 is consistent with the inclination angle of each diagonal of the carrier 300, which can be understood as the pressing plate 400 is parallel to the carrier 300; then in step S300, the pressing plate 400 is driven down to the set position by the synchronous action of the four diagonal motors 510. It can be understood that the set position refers to the position where the pressing plate 400 is pressed down to the piece to be tested, which is a preset value in advance.

[0058] Second embodiment

[0059] S100. Detect the inclination angle of the carrier plate and the pressure plate;

[0060] S200. When the inclination angle of the pressing plate is not equal to the inclination angle of the carrier plate, adjusting the inclination angle of the pressing plate until the inclination angles of the pressing plate and the carrier plate are equal;

[0061] S300. Drive the pressing plate downward until the pressing plate reaches a set position. ;

[0062] S400. When the tilt angle of the carrier plate is greater than a first set angle, an alarm action is executed.

[0063] In this embodiment, the inclination angles of the carrier plate 300 and the pressing plate 400 are detected by the first measuring member 310 and the second measuring member 410 in step S100. During the process, when the condition in step S200 is met, the inclination angle of the pressing plate 400 is adjusted by the motor 510 until the pressing plate 400 and the carrier plate 300 are adjusted to be parallel. When the pressing plate 400 is pressed down, the first guide pin 420 on the pressing plate 400 contacts the first guide sleeve 320 on the carrier plate 300. When the first guide pin 420 fails to enter the first guide sleeve 320 smoothly, the two interfere with each other. At this time, the first guide pin 420 presses against the first guide sleeve 320, and due to the floating setting of the carrier plate 300, the pressing plate 400 Continuing to press down will cause the carrier 300 to tilt. At this time, in step S400, if the tilt angle of the carrier 300 is greater than the first set angle, an alarm action is executed. The alarm action can be a buzzer alarm or a light flashing alarm. At the same time, the motor 510 no longer drives the pressing plate 400 to press down, but drives the pressing plate 400 to move up and reset to the initial position; at the same time, step S400 can also be performed simultaneously with step S100. When the first measuring piece 310 detects in step S100 that the tilt angle of the carrier 300 is greater than the first set angle, the alarm action in S400 is directly executed, and after the angle of the carrier 300 is adjusted by equipment or manually, execution starts again from step S100.

[0064] Third embodiment

[0065] S100. Detect the inclination angle of the carrier plate and the pressure plate;

[0066] S200. When the inclination angle of the pressing plate is not equal to the inclination angle of the carrier plate, adjusting the inclination angle of the pressing plate until the inclination angles of the pressing plate and the carrier plate are equal;

[0067] S300. driving the pressing plate downward until the pressing plate reaches a set position;

[0068] S400. Obtain the current inclination angles of the carrier plate and the pressure plate. If the inclination angle of the carrier plate is not equal to the inclination angle of the pressure plate, drive the pressure plate back to the initial position.

[0069] In this embodiment, in step S100, the inclination angles of the carrier plate 300 and the pressing plate 400 are detected by the first measuring member 310 and the second measuring member 410. During the process, when the condition in step S200 is met, the inclination angle of the pressing plate 400 is adjusted by the motor 510 until the pressing plate 400 and the carrier plate 300 are adjusted to be parallel. When the pressing plate 400 is pressed down, the first guide pin 420 on the pressing plate 400 contacts the first guide sleeve 320 on the carrier plate 300. If the first guide pin 420 fails to enter the first guide sleeve 320 smoothly, the two interfere with each other. At this time, the first guide pin 420 The pressing plate 400 is pressed against the first guide sleeve 320, and due to the floating setting of the carrier 300, the carrier 300 is tilted if the pressing plate 400 continues to be pressed downward. At this time, in step S400, the motor 510 no longer drives the pressing plate 400 to be pressed downward, but drives the pressing plate 400 to move up and reset to the initial position; in this embodiment, step S400 is executed synchronously with step S300, that is, the detection of the pressing plate 400 and the carrier 300 in step S400 is real-time continuous detection until the pressing plate 400 reaches the set position. When the pressing plate 400 is at the initial position, step S400 is not executed, and only step S100 is executed.

[0070] Fourth embodiment

[0071] S100. Detect the inclination angle of the carrier plate and the pressure plate;

[0072] S200. When the inclination angle of the pressing plate is not equal to the inclination angle of the carrier plate, adjusting the inclination angle of the pressing plate until the inclination angles of the pressing plate and the carrier plate are equal;

[0073] S300. Drive the pressing plate downward until the pressing plate reaches a set position. ;

[0074] S400. Obtain the current inclination angles of the carrier plate and the pressure plate. If the inclination angle of the carrier plate is not equal to the inclination angle of the pressure plate, drive the pressure plate back to the initial position;

[0075] S500. When the tilt angle of the carrier plate is greater than a first set angle, an alarm action is executed.

[0076] In this embodiment, in step S100, the inclination angles of the carrier plate 300 and the pressure plate 400 are detected by the first measuring piece 310 and the second measuring piece 410. During the process, when the conditions in step S200 are met, the inclination angle of the pressure plate 400 is adjusted by the motor 510 until the pressure plate 400 and the carrier plate 300 are adjusted to be parallel. When the pressure plate 400 is pressed down, the first guide pin 420 on the pressure plate 400 contacts the first guide sleeve 320 on the carrier plate 300. If the first guide pin 420 fails to enter the first guide sleeve 320 smoothly, the two interfere with each other. At this time, the first guide pin 420 presses on the first guide sleeve 320. Since the carrier plate 300 is floatingly set, the pressure plate 400 continues to be pressed down, causing the carrier plate 300 to tilt. At this time, in step S500, the motor 510 The pressing plate 400 is no longer driven downward, but is driven to move upward and reset to the initial position; in this embodiment, step S500 is executed synchronously in step S300, that is, the detection of the pressing plate 400 and the carrier plate 300 in step S500 is a real-time continuous detection until the pressing plate 400 reaches the set position. When the pressing plate 400 is in the initial position, step S500 is not executed, and only step S100 is executed. When the pressing plate 400 makes the inclination angle of the carrier plate 300 greater than the first set angle, an alarm action is executed. The alarm action can be a buzzer alarm or a flashing light alarm. At the same time, the motor 510 no longer drives the pressing plate 400 downward, but drives the pressing plate 400 to move upward and reset to the initial position. In this embodiment, step S400 is performed synchronously in step S100 and step S500.

[0077] According to some embodiments of the present invention, in the above-mentioned embodiments 1 to 4, the first setting angle is 2°.

[0078] The beneficial effects of the present invention are as follows:

[0079] 1. When starting the guiding process, the position offset and angle tilt are automatically detected, and the angle and position are automatically adjusted to adapt to the current position offset and angle tilt to ensure smooth cooperation between the guide column and the guide sleeve during operation. During the guiding process, the abnormal vibration and angle tilt during the guiding process are automatically detected to determine whether there is a risk of jamming and excessive friction caused by the guide cooperation and different axes, and the alignment position and angle are automatically adjusted to adapt to the current "position offset" and "angle tilt" to ensure smooth introduction.

[0080] It should be noted that in this specification, terms such as "one embodiment", "some embodiments", "basic embodiment", "extended embodiment" etc. may be used to describe several embodiments of the present invention. The specific features, structures, materials or characteristics of the several embodiments may be combined in accordance with the principles and purposes of the present invention.

[0081] Although some embodiments of the present invention have been shown and described in this specification, the present invention should not be limited to the above-mentioned embodiments. As long as the technical effects of the present invention are achieved by the same or equivalent means, any changes, modifications, equivalent substitutions and equivalent variations to these embodiments that are within the spirit and principles of the present disclosure and do not depart from the principles and purpose of the present invention should be included in the scope of protection of the present disclosure and should be deemed to be within the scope of protection of the present invention.

Claims

1. A pressing device with a deviation correction function, characterized in that: include: Base plate; A needle plate, arranged on the bottom plate, and a probe is arranged on the needle plate; A carrier plate is floatingly arranged on the needle plate, the middle part of the carrier plate is used to place the circuit board to be tested, the probe can pass through the carrier plate and contact the circuit board to be tested, the four diagonal parts of the carrier plate are respectively provided with first measuring pieces, the first measuring pieces are used to detect the inclination of the four corners of the carrier plate, and two first guide sleeves are arranged on the carrier plate; A pressing plate, movably disposed above the carrier plate, a second measuring piece is disposed on the pressing plate, the second measuring piece is used to detect the inclination of the four corners of the pressing plate, and a first guide pin matching the first guide sleeve is disposed on the lower surface of the pressing plate; The driving assembly is arranged on the bottom plate, and is used for adjusting the inclination of the four corners of the pressing plate and driving the pressing plate to move up and down.

2. A pressing device with a deviation correction function according to claim 1, characterized in that: Two second guide pins are arranged on the upper surface of the needle plate, and two second guide sleeves are arranged at corresponding positions on the carrier plate.

3. A pressing device with a deviation correction function according to claim 1, characterized in that: The driving assembly includes four motors, and the four motors are arranged at the four corners of the pressure plate. The output shaft of the motor is connected to a screw rod. The four diagonal corners of the pressure plate are provided with nuts and bearings matching the screw rod. Each of the motors can be used to adjust the inclination of the corresponding angle of the pressure plate. The four motors work together to drive the pressure plate to move up and down.

4. A pressing device with a deviation correction function according to claim 3, characterized in that: It also includes a support plate and a fixing plate, wherein the support plate is arranged on the bottom plate, the fixing plate is connected to the support plate and is located above the bottom plate, and the motor is arranged on the fixing plate.

5. A pressing device with a deviation correction function according to claim 4, characterized in that: Reinforcing ribs are provided between the support plate and the fixing plate.

6. The pressing device with deviation correction function according to claim 1, characterized in that: A plurality of springs are arranged on the needle plate, and the upper ends of the springs abut against the carrier plate.

7. The pressing device with deviation correction function according to claim 1, characterized in that: The first measuring element is configured as an acceleration sensor.

8. The pressing device with deviation correction function according to claim 7, characterized in that: The second measuring member is configured as a digital level.

9. The pressing device with deviation correction function according to claim 1, characterized in that: Handles are also provided on both sides of the bottom plate, and foot pads are provided at the bottom.

10. A deviation correction method for a pressing device, characterized in that: The following steps are involved: Detect the tilt angle of the carrier plate and the pressure plate; When the inclination angle of the pressing plate is not equal to the inclination angle of the carrier plate, adjusting the inclination angle of the pressing plate until the inclination angles of the pressing plate and the carrier plate are equal; The pressing plate is driven to press downward until the pressing plate reaches a set position.

11. A deviation correction method for a pressing device according to claim 10, characterized in that: The following steps are also included: When the tilt angle of the carrier plate is greater than a first set angle, an alarm action is executed.

12. A deviation correction method for a pressing device according to claim 10 or 11, characterized in that: The step of driving the pressing plate to press down comprises: The current inclination angles of the carrier plate and the pressing plate are obtained. If the inclination angle of the carrier plate and the pressing plate are not equal, the pressing plate is driven to return to the initial position.

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