High-precision prepressing alignment platform driven by linear motor

Abstract

The utility model discloses a high-precision prepressing alignment platform driven by a linear motor, and belongs to the technical field of display screen machining equipment. The platform is mainly composed of a Y-axis linear driving mechanism, an X-axis linear driving mechanism and a theta-axis angle driving mechanism. The Y-axis linear driving mechanism comprises a Y-axis power source and a Y-axis mover part, and is equipped with a Y-axis position sensing group and a Y-axis grating sensing group; the X-axis linear driving mechanism is arranged on the Y-axis mover part and is provided with an X-axis power source, an X-axis mover part and an X-axis grating sensing group; the theta-axis angle driving mechanism is fixed to the X-axis rotor part, a power source of the theta-axis angle driving mechanism is a DDR motor, and the theta-axis angle driving mechanism is connected with a negative pressure adsorption plate with a negative pressure channel. According to the utility model, the X axis, the Y axis and the theta axis work cooperatively to correct the angle of a product and the position in the X-Y direction. The multi-axis driving mechanism is matched with the sensing set, high-precision positioning and moving control are achieved, the structure is stable, workpiece adsorption is convenient and fast, and the problem of the requirement for prepressing precision of large and medium-sized OLED display screens is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of display screen processing equipment technology, specifically to a high-precision pre-pressure alignment platform driven by a linear motor. Background Technology

[0002] In the flat panel display industry, the pre-pressing process is a crucial step in the module bonding production process, and its importance is self-evident. The precision of pre-pressing directly determines the production yield of the screen module and plays a pivotal role in the entire production process. In recent years, with the widespread adoption of OLED products, especially in medium and large-sized displays such as TV screens and automotive screens, the industry landscape has undergone significant changes. Medium and large-sized products have not only increased in size significantly, but their bonding processes also place more stringent demands on pre-pressing precision. Traditional pre-pressing alignment platforms, due to limitations in structural design and manufacturing processes, can no longer keep pace with the rapid development of the industry and cannot meet the ever-increasing demand for high precision.

[0003] In view of this, developing a pre-pressing alignment platform with higher precision has become a key issue that the industry urgently needs to address. This is of great significance for filling industry gaps and promoting the further development of flat panel display technology. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention aims to provide a high-precision pre-pressing alignment platform driven by a linear motor. The purpose of designing this high-precision pre-pressing alignment platform is to solve the problem that existing pre-pressing alignment platform structures cannot meet the increasing demands for pre-pressing precision caused by the larger size and longer bonding area of ​​OLED products in medium-to-large-size displays.

[0005] To solve the above technical problems, this utility model provides the following solution: A high-precision pre-loading alignment platform driven by a linear motor, comprising:

[0006] The Y-axis linear drive mechanism has a Y-axis power source and a Y-axis mover connected to the Y-axis power source. The Y-axis linear drive mechanism is provided with a Y-axis position sensing group for sensing the position of the Y-axis mover and a Y-axis grating sensing group for controlling the moving distance of the Y-axis mover.

[0007] An X-axis linear drive mechanism is mounted on the Y-axis moving part. The X-axis linear drive mechanism has an X-axis power source and an X-axis moving part that is driven and connected to the X-axis power source. The X-axis linear drive mechanism is provided with an X-axis grating sensor group for sensing the moving distance of the X-axis moving part.

[0008] The θ-axis angle driving mechanism is fixed to the X-axis moving part. The θ-axis angle driving mechanism has an θ-axis power source and a negative pressure adsorption plate driven and connected to the θ-axis power source. The negative pressure adsorption plate is provided with a negative pressure channel. The two ends of the negative pressure channel are respectively connected to the adsorption holes provided on the surface of the negative pressure adsorption plate and the air connector provided on the side of the negative pressure adsorption plate.

[0009] Furthermore, the Y-axis power source is a Y-axis linear motor, and the Y-axis linear motor mount is provided on the Y-axis linear motor mount, with double rows of Y-axis guide rails on its top.

[0010] Furthermore, the Y-axis mover unit includes a Y-axis mover connecting plate and a Y-axis linear motor mover disposed on the lower surface of the Y-axis mover connecting plate, and the Y-axis mover connecting plate is slidably connected to the Y-axis guide rail;

[0011] The Y-axis position sensing group includes:

[0012] A slotted sensor is mounted on the side at the beginning and end of the Y-axis linear motor mount;

[0013] The sensing plate is side-mounted on the moving part connecting plate, and the path of the sensing plate can reach and enter the slots of the two slotted sensors.

[0014] Furthermore, the Y-axis grating sensing group includes a Y-axis grating disposed on the side of the Y-axis linear motor mount, and a Y-axis grating sensor disposed on the mover connecting plate for identifying the Y-axis grating scale.

[0015] Furthermore, an X-axis stator mounting plate is fixed to the plate surface of the Y-axis moving part, and X-axis guide rails are provided on both sides of the top of the X-axis stator mounting plate;

[0016] The X-axis power source is an X-axis linear motor, which is mounted on the X-axis stator mounting plate.

[0017] Furthermore, the X-axis mover unit includes an X-axis mover connecting plate and an X-axis linear motor mover disposed on the lower surface of the X-axis mover connecting plate, wherein the X-axis mover connecting plate is slidably connected to the X-axis guide rail;

[0018] The X-axis position sensing group includes:

[0019] An X-axis grating is disposed on the side of the X-axis stator mounting plate, and an X-axis grating sensor is disposed on the X-axis mover connecting plate and used to identify the X-axis grating scale.

[0020] Furthermore, the θ-axis power source is a DDR motor, which is fixed to the X-axis moving part via an X-axis connecting plate.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. This utility model's high-precision pre-pressing alignment platform enables high-precision positioning: Through the coordinated operation of the XYθ axes, this utility model completes the position correction of the product's angle and XY directions. Using linear drive mechanisms on the Y and X axes and an angle drive mechanism on the θ axis, along with corresponding position sensing groups and grating sensing groups, it achieves high-precision positioning and movement control, meeting the high-precision requirements of the pre-pressing process for medium and large-sized displays.

[0023] 2. The high-precision preload alignment platform of this utility model has a stable structure: the Y-axis linear motor adopts a double-row Y-axis guide rail, and the sliding connection structure between each axis moving part and the guide rail makes the entire platform more stable and reliable during operation, reducing vibration and deviation.

[0024] 3. The high-precision pre-pressing alignment platform of this utility model has convenient adsorption: the setting of the negative pressure adsorption plate can easily adsorb the workpiece to be pre-pressed, which improves the convenience of operation and work efficiency. Attached Figure Description

[0025] Figure 1 This is a structural diagram of the high-precision pre-compression alignment platform of this utility model.

[0026] The attached diagram shows the following components: 1 - Y-axis linear motor mount, 2 - Y-axis guide rail, 3 - Y-axis linear motor, 4 - X-axis grating sensor, 5 - X-axis guide rail, 7 - negative pressure adsorption plate, 8 - DDR motor, 9 - X-axis linear motor, 10 - X-axis stator mounting plate, 11 - Y-axis grating sensor, 12 - Y-axis linear motor mover, 13 - Y-axis mover connecting plate, 14 - X-axis linear motor mover, 15 - X-axis mover connecting plate, 16 - X-axis connecting plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model. Obviously, the embodiments described in this utility model are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] Example 1: The specific structure of this utility model is as follows:

[0030] Please refer to the appendix. Figure 1This utility model discloses a high-precision preload alignment platform driven by a linear motor, comprising a Y-axis linear drive mechanism, an X-axis linear drive mechanism, and a θ-axis angle drive mechanism.

[0031] I. The structure of the Y-axis linear drive mechanism is as follows:

[0032] The Y-axis linear drive mechanism has a Y-axis power source and a Y-axis moving part driven and connected to the Y-axis power source. The Y-axis linear drive mechanism is provided with a Y-axis position sensing group for sensing the position of the Y-axis moving part and a Y-axis grating sensing group for controlling the moving distance of the Y-axis moving part.

[0033] Specifically, the Y-axis power source is a Y-axis linear motor 3, which is mounted on a Y-axis linear motor base 1, and has a double row of Y-axis guide rails 2 on its top.

[0034] The Y-axis mover unit includes a Y-axis mover connecting plate 13 and a Y-axis linear motor mover 12 disposed on the lower surface of the Y-axis mover connecting plate 13. The Y-axis mover connecting plate 13 is slidably connected to the Y-axis guide rail 2.

[0035] The Y-axis position sensing group includes:

[0036] A slotted sensor is mounted on the beginning and end of the Y-axis linear motor base 1;

[0037] The sensing plate is side-mounted on the moving part connecting plate 13, and the path of the sensing plate can reach and enter the slots of the two slotted sensors.

[0038] The Y-axis grating sensing group includes a Y-axis grating disposed on the side of the Y-axis linear motor base 1, and a Y-axis grating sensor 11 disposed on the mover connecting plate 13 for identifying the Y-axis grating scale.

[0039] The motion process of the Y-axis linear drive mechanism: The Y-axis moving part is driven to move along the Y-axis guide rail by the Y-axis power source of the Y-axis linear drive mechanism. The Y-axis position sensing group and the Y-axis grating sensing group monitor the position and moving distance of the Y-axis moving part in real time to achieve accurate Y-axis direction positioning.

[0040] II. The structure of the X-axis linear drive mechanism is as follows:

[0041] The X-axis linear drive mechanism is mounted on the Y-axis moving part. The X-axis linear drive mechanism has an X-axis power source and an X-axis moving part that is driven and connected to the X-axis power source. The X-axis linear drive mechanism is provided with an X-axis grating sensor group for sensing the moving distance of the X-axis moving part.

[0042] The Y-axis moving part is fixed with an X-axis stator mounting plate 10, and X-axis guide rails 5 are provided on the top of both sides of the X-axis stator mounting plate 10.

[0043] The X-axis power source is an X-axis linear motor 9, which is mounted on the X-axis stator mounting plate 10.

[0044] The X-axis mover unit includes an X-axis mover connecting plate 15 and an X-axis linear motor mover 14 disposed on the lower surface of the X-axis mover connecting plate 15. The X-axis mover connecting plate 15 is slidably connected to the X-axis guide rail 5.

[0045] The X-axis position sensing group includes:

[0046] An X-axis grating is disposed on the side of the X-axis stator mounting plate 10, and an X-axis grating sensor 4 is disposed on the X-axis mover connecting plate 15 and used to identify the X-axis grating scale.

[0047] The motion process of the X-axis linear drive mechanism: The X-axis power source of the X-axis linear drive mechanism drives the X-axis moving part to move along the X-axis guide rail. The X-axis grating sensor group monitors the moving distance of the X-axis moving part to achieve precise X-axis directional positioning.

[0048] III. The structure of the θ-axis angle drive mechanism is as follows:

[0049] The θ-axis angle driving mechanism is fixed to the X-axis moving part. The θ-axis angle driving mechanism has an θ-axis power source and a negative pressure adsorption plate 7 driven and connected to the θ-axis power source. The negative pressure adsorption plate 7 is provided with a negative pressure channel. The two ends of the negative pressure channel are respectively connected to the adsorption holes provided on the upper surface of the negative pressure adsorption plate 7 and the air connectors provided on the side of the negative pressure adsorption plate 7.

[0050] The θ-axis power source is a DDR motor 8, which is fixed to the X-axis moving part via an X-axis connecting plate 16.

[0051] The motion process of the θ-axis angle drive mechanism: The θ-axis power source of the θ-axis angle drive mechanism drives the negative pressure adsorption plate to rotate, adjusting the angle of the adsorbed workpiece. The negative pressure adsorption plate adsorbs and fixes the workpiece to be pre-pressed through the negative pressure channel and adsorption holes, facilitating the pre-pressing operation.

[0052] In summary, this high-precision pre-loading alignment platform can achieve high-precision positioning: Through the coordinated work of the XYθ axes, it completes the position correction of the product angle and XY direction. By using linear drive mechanisms on the Y and X axes and an angle drive mechanism on the θ axis, along with corresponding position sensing groups and grating sensing groups, it can achieve high-precision positioning and movement control, meeting the high-precision requirements of the pre-loading process for medium and large-sized displays. This high-precision pre-loading alignment platform has a stable structure: the Y-axis linear motor adopts a double-row Y-axis guide rail, and the sliding connection structure between each axis moving part and the guide rail makes the entire platform more stable and reliable during operation, reducing vibration and deviation. This high-precision pre-loading alignment platform facilitates adsorption: the negative pressure adsorption plate can easily adsorb the workpiece to be pre-loaded, improving the convenience of operation and work efficiency.

[0053] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the contents of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A high-precision pre-press alignment platform driven by a linear motor, characterized in that, It comprises: Y-axis linear drive mechanism, the Y-axis linear drive mechanism has Y-axis power source and Y-axis mover part driven connection with the Y-axis power source, the Y-axis linear drive mechanism is equipped with Y-axis position sensing group for inducting Y-axis mover part position and Y-axis grating sensing group for controlling Y-axis mover part moving distance; X-axis linear drive mechanism, seat is equipped in Y-axis mover part, the X-axis linear drive mechanism has X-axis power source and X-axis mover part driven connection with the X-axis power source, the X-axis linear drive mechanism is equipped with X-axis grating sensing group for inducting X-axis mover part moving distance; θ-axis angle drive mechanism, fixed on the X-axis mover part, the θ-axis angle drive mechanism has θ-axis power source and negative pressure adsorption plate (7) driven connection with the θ-axis power source, the negative pressure adsorption plate (7) is equipped with negative pressure passage, and the both ends of the negative pressure passage are communicated respectively adsorption hole on the plate surface of the negative pressure adsorption plate (7) and gas joint on the side of the negative pressure adsorption plate (7).

2. The linear motor driven high-precision pre-press alignment platform according to claim 1, wherein, The Y-axis power source is Y-axis linear motor (3), the Y-axis linear motor (3) seat is equipped in Y-axis linear motor seat (1), and the top is equipped with double-row Y-axis guide rail (2).

3. The linear motor driven high-precision pre-press alignment platform according to claim 2, characterized in that, The Y-axis mover part includes Y-axis mover connecting plate (13) and Y-axis linear motor mover (12) on the lower plate surface of the Y-axis mover connecting plate (13), and the Y-axis mover connecting plate (13) is slidably connected with the Y-axis guide rail (2). The Y-axis position sensing group includes: The slot sensor is arranged on the beginning end and the terminal end of the Y-axis linear motor seat (1); The sensing sheet is arranged on the mover connecting plate (13), and the path of the sensing sheet can reach and enter the slot of the two slot sensors.

4. The linear motor driven high-precision pre-press alignment platform according to claim 3, characterized in that, The Y-axis grating sensing group includes Y-axis grating arranged on the side of the Y-axis linear motor seat (1) and Y-axis grating sensor (11) arranged on the mover connecting plate (13) and used for identifying the scale of the Y-axis grating.

5. The linear motor driven high-precision pre-press alignment platform according to claim 1, wherein, The plate surface of the Y-axis mover part is fixed with X-axis stator mounting plate (10), and the both sides of the top of the X-axis stator mounting plate (10) are equipped with X-axis guide rail (5); The X-axis power source is X-axis linear motor (9), and the X-axis linear motor (9) is mounted on the X-axis stator mounting plate (10).

6. The linear motor driven high-precision pre-press alignment platform according to claim 5, wherein, The X-axis mover part includes X-axis mover connecting plate (15) and X-axis linear motor mover (14) on the lower plate surface of the X-axis mover connecting plate (15), and the X-axis mover connecting plate (15) is slidably connected with the X-axis guide rail (5). The X-axis position sensing group includes: The X-axis grating is arranged on the side of the X-axis stator mounting plate (10), and the X-axis grating sensor (4) is arranged on the X-axis mover connecting plate (15) and used for identifying the scale of the X-axis grating.

7. The linear motor driven high-precision pre-press alignment table according to claim 1, wherein, The θ-axis power source is DDR motor (8), which is fixed on the X-axis mover part through X-axis connecting plate (16).

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