Deviation correcting system

Abstract

The utility model relates to a deviation rectifying system which comprises a first platform and a second platform, the first platform is used for bearing a workpiece, and a first driving part and a second driving part are arranged between the first platform and the second platform at intervals; the first driving part comprises a first moving part and a first driving part, the first moving part is rotationally connected with the first platform, the first driving part is arranged on the second platform and can drive the first moving part to move in the first direction, and the first direction is the length direction or the width direction of the second platform; the second driving part comprises a second moving part, a third moving part and a second driving part, the second moving part is rotationally connected with the first platform, the second moving part and the third moving part are slidably connected in the second direction, and the second driving part is arranged on the second platform and can drive the third moving part to move in the first direction; the second direction is the width direction or the length direction of the second platform. According to the deviation rectifying system, the first driving part and the second driving part need to bear small pressure, so that the deviation rectifying system is not prone to damage.

Description

Technical Field

[0001] This application relates to the field of battery production equipment technology, and in particular to a correction system. Background Technology

[0002] When processing batteries or electrodes, the batteries or electrodes need to be placed on a correction system. The correction system can move or rotate to align the position of the batteries or electrodes and ensure processing accuracy.

[0003] Currently, the correction system achieves rotation by connecting to the rotating shaft of the rotary motor, but the supporting strength of the rotating shaft is low and it is easily damaged. Utility Model Content

[0004] This application provides a correction system to address the problem of existing correction systems being prone to damage.

[0005] An embodiment of this application provides a correction system, comprising: a first platform and a second platform, wherein the first platform is used to support a workpiece, and a first driving part and a second driving part are disposed at an interval between the first platform and the second platform;

[0006] The first driving unit includes: a first moving member and a first driving member. The first moving member is rotatably connected to the first platform, and the first driving member is disposed on the second platform and is capable of driving the first moving member to move along a first direction, wherein the first direction is the length direction or the width direction of the second platform.

[0007] The second driving unit includes: a second moving member, a third moving member, and a second driving member. The second moving member is rotatably connected to the first platform, and the second moving member and the third moving member are slidably connected along a second direction. The second driving member is disposed on the second platform and can drive the third moving member to move along the first direction, where the second direction is the width direction or the length direction of the second platform.

[0008] In one possible design, the first drive unit further includes: a first rotating member, which is fixed to the first platform and rotatably connected to the first moving member;

[0009] And / or, the second drive unit further includes: a second rotating member, which is fixed to the first platform and rotatably connected to the second moving member.

[0010] In one possible design, one of the second moving member and the third moving member is provided with a first guide rail extending along the second direction, and the other is provided with a first slide groove, wherein the first guide rail cooperates with the first slide groove.

[0011] In one possible design, a first support portion is further provided between the first platform and the second platform. The first support portion includes a third rotating member, a fourth moving member, and a fifth moving member. The third rotating member is fixed to the first platform and rotatably connected to the fourth moving member. The fourth moving member is slidably connected to the fifth moving member, and the fifth moving member is slidably connected to the second platform.

[0012] The direction in which the fourth moving member slides relative to the fifth moving member and the direction in which the fifth moving member slides relative to the second platform are both parallel to the first direction and the other parallel to the second direction.

[0013] In one possible design, one of the fourth moving member and the fifth moving member is provided with a fourth guide rail, and the other is provided with a fourth sliding groove, wherein the fourth guide rail and the fourth sliding groove cooperate.

[0014] And / or, the first support portion further includes a fifth guide rail fixed to the second platform, the fifth moving member being provided with a fifth sliding groove, and the fifth guide rail cooperating with the fifth sliding groove.

[0015] In one possible design, the fourth guide rail is parallel to the first direction, the fifth guide rail is parallel to the second direction, and the length of the fourth guide rail is longer than the length of the fifth guide rail;

[0016] Alternatively, the fifth guide rail is parallel to the first direction, the fourth guide rail is parallel to the second direction, and the length of the fifth guide rail is longer than the length of the fourth guide rail.

[0017] In one possible design, two first support portions are spaced apart along the second direction.

[0018] In one possible design, the correction system further includes: a third platform located on the side of the second platform away from the first platform, and a third drive unit disposed between the third platform and the second platform;

[0019] The third driving unit includes a sixth moving member and a third driving member. The sixth moving member is fixed to the second platform, and the third driving member is fixed to the third platform. The third driving member can drive the sixth moving member to move along a second direction.

[0020] In one possible design, a second support portion is also provided between the third platform and the second platform;

[0021] The second support includes a seventh movable component and a sixth guide rail. The seventh movable component is fixed to the second platform and is provided with a sixth sliding groove. The sixth guide rail is fixed to the third platform and cooperates with the sixth sliding groove.

[0022] In one possible design, the second support portion is symmetrically arranged on both sides of the third drive portion.

[0023] In this application, when the direction and distance of movement of the first moving member driven by the first driving member and the direction and distance of movement of the third moving member driven by the second driving member are the same, the first platform moves relative to the second platform along the first direction; when any one of the direction and distance of movement of the first moving member driven by the first driving member and the direction and distance of movement of the third moving member driven by the second driving member is different, the first platform rotates relative to the second platform around the third direction, and in order to match the change in distance between the first moving member and the second moving member, the second moving member slides relative to the third moving member along the second direction, thereby realizing the adjustment of the position of the first platform in the first direction and the adjustment of its attitude in the plane containing the first and second directions.

[0024] Because the first platform is supported and driven by a first drive unit and a second drive unit spaced apart, the pressure that the first and second drive units need to withstand, as well as the power required to drive the first platform, are relatively small. This makes the first and second drive units less prone to damage, resulting in a longer service life for the alignment system. Simultaneously, the first and second drive units can realize the movement of the first platform relative to the second platform along a first direction and its rotation around a third direction, eliminating the need for separate structures to drive the movement and rotation of the first platform. This simplifies the structure of the alignment platform and helps reduce its cost.

[0025] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the correction device provided in this application in a specific embodiment;

[0027] Figure 2 for Figure 1 The attempt;

[0028] Figure 3 for Figure 2 Cross-sectional view along the AA direction;

[0029] Figure 4 for Figure 3 A schematic diagram of the structure of the first drive unit;

[0030] Figure 5 for Figure 3 A schematic diagram of the structure of the second drive unit;

[0031] Figure 6 for Figure 3 Schematic diagram of the first support section;

[0032] Figure 7 for Figure 2 Cross-sectional view along the BB direction.

[0033] Figure label:

[0034] 1-First platform;

[0035] 2-Second platform;

[0036] 3-Third platform;

[0037] 4-First drive unit;

[0038] 41-First rotating component;

[0039] 42-First moving part;

[0040] 43-First driving component;

[0041] 44 - Second guide rail;

[0042] 5-Second drive unit;

[0043] 51-Second rotating component;

[0044] 52-Second moving part;

[0045] 53-Third moving part;

[0046] 531 - First guide rail;

[0047] 54 - Second drive component;

[0048] 55 - Third guide rail;

[0049] 6-Third drive unit;

[0050] 61 - The sixth moving part;

[0051] 62-Third drive component;

[0052] 7-First support section;

[0053] 71-Third rotating component;

[0054] 72-Fourth moving part;

[0055] 73 - Fifth moving part;

[0056] 731 - Fourth guide rail;

[0057] 74 - Fifth guide rail;

[0058] 8-Second support section;

[0059] 81-Seventh moving part;

[0060] 82 - Sixth guide rail.

[0061] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0062] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0063] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0064] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0065] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0066] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when referring to an element being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element.

[0067] This application provides a correction system, such as... Figures 1-3 As shown, the correction system includes a first platform 1 and a second platform 2. The first platform 1 is used to support the workpiece, and a first driving unit 4 and a second driving unit 5 are spaced apart between the first platform 1 and the second platform 2. The workpiece can be a battery cell or an electrode sheet, etc.

[0068] Specifically, both the first platform 1 and the second platform 2 are plate-shaped. The surface of the first platform 1 used to support the workpiece is parallel to the surface of the second platform 2 facing the first platform 1. For ease of description, the length or width direction of the second platform 2 is defined as the first direction X, and the width or length direction of the second platform 2 is defined as the second direction Y. The second direction Y is perpendicular to the first direction X, and the plane containing the first direction X and the second direction Y is parallel to the surface of the first platform 1 used to support the workpiece. The direction perpendicular to the first direction X and the second direction Y is defined as the third direction Z, and the third direction Z is perpendicular to the surface of the first platform 1 used to support the workpiece.

[0069] like Figures 3-5 As shown, the first driving unit 4 and the second driving unit 5 are spaced apart in the second direction Y. The first driving unit 4 includes a first moving member 42 and a first driving member 43. The first moving member 42 is rotatably connected to the first platform 1, and the first driving member 43 is disposed on the second platform 2 and can drive the first moving member 42 to move along the first direction X. The second driving unit 5 includes a second moving member 52, a third moving member 53 and a second driving member 54. The second moving member 52 is rotatably connected to the first platform 1, and the second moving member 52 and the third moving member 53 are slidably connected along the second direction Y. The second driving member 54 is disposed on the second platform 2 and can drive the third moving member 53 to move along the first direction X.

[0070] In this embodiment, when the first driving member 43 drives the first moving member 42 in the same direction and distance, and the second driving member 54 drives the third moving member 53 in the same direction and distance, the first platform 1 moves relative to the second platform 2 along the first direction X. When the first driving member 43 drives the first moving member 42 in the same direction and distance, and the second driving member 54 drives the third moving member 53 in the same direction and distance, the first platform 1 rotates relative to the second platform 2 around the third direction X. In order to accommodate the change in distance between the first moving member 42 and the second moving member 52, the second moving member 52 slides relative to the third moving member 53 along the second direction Y, thereby realizing the adjustment of the position of the first platform 1 in the first direction X and the adjustment of its attitude in the plane containing the first direction X and the second direction Y.

[0071] Since the first platform 1 is supported and driven by the first drive unit 4 and the second drive unit 5, which are spaced apart, the pressure that the first drive unit 4 and the second drive unit 5 need to withstand and the power required to drive the first platform 1 are both relatively small. This makes the first drive unit 4 and the second drive unit 5 less prone to damage, resulting in a longer service life for the correction system. At the same time, the first drive unit 4 and the second drive unit 5 can realize the movement of the first platform 1 relative to the second platform 2 along the first direction X and the rotation around the third direction Z, eliminating the need for separate structures to drive the movement and rotation of the first platform 1. This simplifies the structure of the correction platform and helps reduce its cost.

[0072] Specifically, such as Figure 4 As shown, the first driving unit 4 further includes a first rotating member 41, which is fixed to the first platform 1 and rotatably connected to the first moving member 42, thereby realizing the rotatable connection between the first moving member 42 and the first platform 1. Figure 5 As shown, the second drive unit 5 also includes a second rotating member 51, which is fixed to the first platform 1 and rotatably connected to the second moving member 52, thereby realizing the rotatable connection between the second moving member 52 and the first platform 1.

[0073] Optionally, the first rotating component 41 is a rotating shaft, and the first moving component 42 is a slider. The first driving component 43 includes a first motor and a first lead screw, the first lead screw extending along a first direction X, and the first moving component 42 being threadedly connected to the first lead screw. When the first motor drives the first lead screw to rotate, the first moving component 42 moves relative to the first lead screw along the first direction X.

[0074] Optionally, the second rotating member 51 is a rotating shaft, the second moving member 52 and the third moving member 53 are sliders, and the second driving member 54 includes a second motor and a second lead screw. The second lead screw extends along the first direction X, and the third moving member 53 is threadedly connected to the second lead screw. When the second motor drives the second lead screw to rotate, the third moving member 53 moves relative to the second lead screw along the first direction X.

[0075] Optionally, multiple first drive units 4 are provided along the first direction X, but the direction and distance in which the first drive members 43 of the multiple first drive units 4 drive the first moving member 42 must be consistent. Similarly, multiple second drive units 5 are provided along the first direction X, but the direction and distance in which the second drive members 54 of the multiple second drive units 5 drive the third moving member 53 must be consistent.

[0076] More specifically, such as Figure 5As shown, one of the second moving member 52 and the third moving member 53 is provided with a first guide rail 531 extending along the second direction Y, and the other is provided with a first sliding groove. The first guide rail 531 cooperates with the first sliding groove. The first guide rail 531 guides the movement of the second moving member 52, making the movement of the second moving member 52 relative to the third moving member 53 more stable.

[0077] Preferred, such as Figure 4 As shown, the first driving unit 4 also includes a second guide rail 44 extending along the first direction X. The second guide rail 44 is fixed to the second platform 2. The first moving member 42 is provided with a second sliding groove, and the second guide rail 44 cooperates with the second sliding groove. The second guide rail 44 guides the movement of the first moving member 42, so that the first moving member 42 moves with high precision along the first direction X, and the movement of the first moving member 42 is relatively smooth.

[0078] Similarly, such as Figure 5 As shown, the second drive unit 5 also includes a third guide rail 55 extending along the first direction X. The third guide rail 55 is fixed to the second platform 2, and the third moving member 53 is provided with a third sliding groove. The third guide rail 55 cooperates with the third sliding groove. The third guide rail 55 guides the movement of the third moving member 53, so that the third moving member 53 moves with high precision along the first direction X, and the movement of the third moving member 53 is relatively smooth.

[0079] Furthermore, such as Figure 2 and Figure 3 As shown, a first support part 7 is also provided between the first platform 1 and the second platform 2. The first support part 7 can provide support for the first platform 1, further reducing the pressure that the first drive part 4 and the second drive part 5 need to bear and the power that the first drive part 4 and the second drive part 5 need to provide to drive the first platform 1, thereby reducing the probability of damage to the first drive part 4 and the second drive part 5 and extending the service life of the correction system.

[0080] Specifically, such as Figure 6 As shown, the first support portion 7 includes a third rotating member 71, a fourth moving member 72, and a fifth moving member 73. The third rotating member 71 is fixed to the first platform 1 and rotatably connected to the fourth moving member 72. The fourth moving member 72 is slidably connected to the fifth moving member 73, and the fifth moving member 73 is slidably connected to the second platform 2. One of the sliding directions of the fourth moving member 72 relative to the fifth moving member 73 and the sliding directions of the fifth moving member 73 relative to the second platform 2 is parallel to a first direction X, and the other is parallel to a second direction Y.

[0081] Optionally, the fifth moving member 73 slides relative to the second platform 2 in a direction parallel to the first direction X, and the fourth moving member 72 slides relative to the fifth moving member 73 in a direction parallel to the second direction Y. When the first platform 1 moves relative to the second platform 2 in the first direction X, the fifth moving member 73 can slide relative to the second platform 2 to cooperate with the movement of the first platform 1; when the first platform 1 moves relative to the second platform 2 in the second direction Y, the fourth moving member 72 can slide relative to the fifth moving member 73 to cooperate with the movement of the first platform 1.

[0082] Optionally, the fourth moving member 72 slides relative to the fifth moving member 73 in a direction parallel to the first direction X, and the fifth moving member 73 slides relative to the second platform 2 in a direction parallel to the second direction Y. When the first platform 1 moves relative to the second platform 2 in the first direction X, the fourth moving member 72 can slide relative to the fifth moving member 73 to cooperate with the movement of the first platform 1; when the first platform 1 moves relative to the second platform 2 in the second direction Y, the fifth moving member 73 can slide relative to the second platform 2 to cooperate with the movement of the first platform 1.

[0083] More specifically, such as Figure 6 As shown, one of the fourth moving member 72 and the fifth moving member 73 is provided with a fourth guide rail 731, and the other is provided with a fourth slide groove. The fourth guide rail 731 and the fourth slide groove cooperate to guide the movement of the fourth moving member 72, so that the fourth moving member 72 moves along a determined path and the movement of the fourth moving member 72 is relatively smooth.

[0084] Similarly, such as Figure 6 As shown, the first support part 7 also includes a fifth guide rail 74 fixed to the second platform 2, and the fifth moving part 73 is provided with a fifth sliding groove, with the fifth guide rail 74 cooperating with the fifth sliding groove. The fifth guide rail 74 guides the movement of the fifth moving part 73, enabling the fifth moving part 73 to move along a defined path, and the movement of the fifth moving part 73 is relatively smooth.

[0085] Since the movement of the first platform 1 relative to the second platform 2 in the second direction Y is only to achieve the rotation of the first platform 1 relative to the second platform 2, the movement distance of the first platform 1 relative to the second platform 2 in the second direction Y is relatively short.

[0086] Optionally, the fourth guide rail 731 is parallel to the first direction X, and the fifth guide rail 74 is parallel to the second direction Y. The length of the fourth guide rail 731 is longer than the length of the fifth guide rail 74. Because the fifth guide rail 74 is shorter, the cost of the correction system can be reduced.

[0087] Optionally, the fifth guide rail 74 is parallel to the first direction X, and the fourth guide rail 731 is parallel to the second direction Y. The length of the fifth guide rail 74 is longer than the length of the fourth guide rail 731. Because the fourth guide rail 731 is shorter, the cost of the correction system can be reduced.

[0088] In the above embodiments, one, two or more first support parts 7 can be provided to share the pressure that the first drive part 4 and the second drive part 5 need to bear to different degrees, reduce the probability of damage to the first drive part 4 and the second drive part 5, and extend the service life of the correction system.

[0089] Specifically, when there are two first support parts 7, the two first support parts 7 are spaced apart along the second direction Y to correspond to the first drive part 4 and the second drive part 5.

[0090] In the above embodiments, such as Figure 1 and Figure 2 As shown, the correction system also includes a third platform 3, which is located on the side of the second platform 2 away from the first platform 1, and a third drive unit 6 is provided between the third platform 3 and the second platform 2.

[0091] like Figure 7 As shown, the third drive unit 6 includes a sixth moving member 61 and a third drive member 62. The sixth moving member 61 is fixed to the second platform 2, and the third drive member 62 is fixed to the third platform 3. The third drive member 62 can drive the sixth moving member 61 to move along the second direction Y.

[0092] When the sixth moving part 61 moves along the second direction Y, the second platform 2 moves relative to the third platform 3 in the second direction Y, and the first platform 1 and the second platform 2 move synchronously, thereby realizing the adjustment of the position of the first platform 1 in the second direction Y.

[0093] Specifically, the third drive unit 6 may include a third motor and a third lead screw, the third lead screw extending along the second direction Y, and a sixth moving member 61 threadedly connected to the third lead screw. When the third motor drives the third lead screw to rotate, the sixth moving member 61 moves relative to the third lead screw along the second direction Y.

[0094] Furthermore, such as Figure 2 As shown, a second support part 8 is also provided between the third platform 3 and the second platform 2. The second support part 8 can provide support for the second platform 2, reduce the pressure that the third drive part 6 needs to bear and the power that the third drive part 6 needs to provide to drive the second platform 2, thereby reducing the probability of damage to the third drive part 6 and extending the service life of the correction system.

[0095] Specifically, such as Figure 7As shown, the second support part 8 includes a seventh moving member 81 and a sixth guide rail 82. The seventh moving member 81 is fixed to the second platform 2 and is provided with a sixth sliding groove. The sixth guide rail 82 is fixed to the third platform 3 and cooperates with the sixth sliding groove. The sixth guide rail 82 guides the movement of the seventh moving member 81, enabling the seventh moving member 81 to move along a defined path, and the movement of the seventh moving member 81 is relatively smooth.

[0096] Furthermore, one, two, or more second support parts 8 can be provided to share the pressure that the third drive part 6 needs to bear to varying degrees, reduce the probability of damage to the third drive part 6, and extend the service life of the correction system.

[0097] Specifically, when there are two second support parts 8, the two second support parts 8 are symmetrically arranged on both sides of the third drive part 6, thereby providing relatively stable support for the second platform 2.

[0098] Understandably, the correction system also includes a detection unit and a control unit. The detection unit can be a CCD camera. The detection unit takes pictures of the workpiece on the first platform 1 and transmits the pictures to the control unit. The control unit (e.g., a computer) analyzes and calculates the pictures to obtain data for adjusting the first platform 1. Then, the control unit controls the first drive unit 4, the second drive unit 5 and the third drive unit 6 to work, thereby realizing the correction of the workpiece.

[0099] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A deviation correction system, characterized in that, The correction system includes: a first platform (1) and a second platform (2), the first platform (1) being used to support the workpiece, and a first driving part (4) and a second driving part (5) being provided at an interval between the first platform (1) and the second platform (2). The first driving unit (4) includes: a first moving member (42) and a first driving member (43). The first moving member (42) is rotatably connected to the first platform (1). The first driving member (43) is disposed on the second platform (2) and can drive the first moving member (42) to move along a first direction (X). The first direction (X) is the length direction or width direction of the second platform (2). The second driving unit (5) includes: a second moving member (52), a third moving member (53), and a second driving member (54). The second moving member (52) is rotatably connected to the first platform (1). The second moving member (52) and the third moving member (53) are slidably connected along the second direction (Y). The second driving member (54) is disposed on the second platform (2) and can drive the third moving member (53) to move along the first direction (X). The second direction (Y) is the width direction or the length direction of the second platform (2).

2. The correction system according to claim 1, characterized in that, The first drive unit (4) further includes: a first rotating member (41), which is fixed to the first platform (1) and rotatably connected to the first moving member (42); And / or, the second drive unit (5) further includes: a second rotating member (51), which is fixed to the first platform (1) and rotatably connected to the second moving member (52).

3. The correction system according to claim 1, characterized in that, One of the second moving member (52) and the third moving member (53) is provided with a first guide rail (531) extending along the second direction (Y), and the other is provided with a first slide groove, wherein the first guide rail (531) cooperates with the first slide groove.

4. The correction system according to claim 1, characterized in that, A first support part (7) is also provided between the first platform (1) and the second platform (2). The first support part (7) includes: a third rotating part (71), a fourth moving part (72) and a fifth moving part (73). The third rotating part (71) is fixed to the first platform (1) and is rotatably connected to the fourth moving part (72). The fourth moving part (72) is slidably connected to the fifth moving part (73). The fifth moving part (73) is slidably connected to the second platform (2). The direction in which the fourth moving member (72) slides relative to the fifth moving member (73) and the direction in which the fifth moving member (73) slides relative to the second platform (2) are both parallel to the first direction (X) and the other is parallel to the second direction (Y).

5. The correction system according to claim 4, characterized in that, One of the fourth moving member (72) and the fifth moving member (73) is provided with a fourth guide rail (731), and the other is provided with a fourth sliding groove. The fourth guide rail (731) and the fourth sliding groove cooperate with each other. And / or, the first support part (7) further includes a fifth guide rail (74) fixed to the second platform (2), the fifth moving part (73) is provided with a fifth sliding groove, and the fifth guide rail (74) cooperates with the fifth sliding groove.

6. The correction system according to claim 5, characterized in that, The fourth guide rail (731) is parallel to the first direction (X), the fifth guide rail (74) is parallel to the second direction (Y), and the length of the fourth guide rail (731) is longer than the length of the fifth guide rail (74). Alternatively, the fifth guide rail (74) is parallel to the first direction (X), the fourth guide rail (731) is parallel to the second direction (Y), and the length of the fifth guide rail (74) is longer than the length of the fourth guide rail (731).

7. The correction system according to claim 3, characterized in that, The first support portion (7) is provided in two at intervals along the second direction (Y).

8. The correction system according to any one of claims 1-7, characterized in that, The correction system further includes a third platform (3), which is located on the side of the second platform (2) away from the first platform (1), and a third drive unit (6) is provided between the third platform (3) and the second platform (2). The third drive unit (6) includes a sixth moving member (61) and a third drive member (62). The sixth moving member (61) is fixed to the second platform (2), and the third drive member (62) is fixed to the third platform (3). The third drive member (62) can drive the sixth moving member (61) to move along the second direction (Y).

9. The correction system according to claim 8, characterized in that, A second support (8) is also provided between the third platform (3) and the second platform (2); The second support part (8) includes a seventh moving part (81) and a sixth guide rail (82). The seventh moving part (81) is fixed to the second platform (2). The seventh moving part (81) is provided with a sixth sliding groove. The sixth guide rail (82) is fixed to the third platform (3). The sixth guide rail (82) cooperates with the sixth sliding groove.

10. The correction system according to claim 9, characterized in that, The second support part (8) is symmetrically arranged on both sides of the third drive part (6).

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