Rotating mechanism for PCB (Printed Circuit Board) bonding device

Abstract

The utility model provides a rotating mechanism for a PCB (Printed Circuit Board) bonding device, which is used for bearing a platform and driving the platform to rotate and comprises a rotating driving part; the device further comprises a supporting part, the supporting part is located between the platform and the moving mechanism, the supporting part directly transmits part or all of the pressure of the platform to the moving mechanism, and the pressure received by a platform supporting plate is directly transmitted to a sliding block and an arc-shaped guide rail through a connecting column. The pressure borne by the rotary driving part is reduced, and the service life of the rotary driving part is prolonged; furthermore, a supporting part is arranged below the platform, and the supporting part and the rotary driving part jointly bear the pressure during the main pressure and share the pressure for supporting the downward pressing of the main pressure, so that the pressure borne by the rotary driving part is further reduced, the service life of the rotary driving part is remarkably prolonged, the rotating resistance of the rotary driving part is remarkably reduced, and the rotary alignment precision is improved.

Description

Technical Field

[0001] The present application relates to the technical field of PCB pressing and bonding, and in particular to a rotating mechanism for a PCB pressing device. Background Art

[0002] This lamination process involves laminating the PCB and glass panel together using a press at a specific temperature and pressure. The glass panel is coated with an ACF film on one side of the lamination surface. During the lamination process, the ACF film explodes and solidifies under the preset pressure and temperature, thus creating a conductive circuit.

[0003] Currently, the demand for extra-large glass panels is constantly increasing. When performing press-fitting on larger glass panels, the PCB is longer, and the temperature and pressure required for pressing also increase accordingly. The platform has to bear greater press-fitting pressure. During press-fitting, the downward pressure generated by the pressing head can reach more than 4000N, which will be transmitted to the rotating mechanism through the platform. Such a large downward pressure can easily cause damage to the moving parts within the rotating mechanism, reducing its service life. Utility Model Content

[0004] The utility model provides a rotating mechanism for a PCB pressing device, so as to solve the problems in the prior art that the pressing device cannot bear a large pressing pressure and the parts have a short lifespan.

[0005] In order to solve the above problems, the technical solution adopted by the present invention is:

[0006] The utility model provides a rotating mechanism for a PCB pressure device, which is used to carry a platform and drive the platform to rotate. The rotating mechanism includes a rotating drive part; it also includes a supporting part, which is located between the platform and the moving mechanism. The supporting part directly transmits part or all of the pressure of the platform to the moving mechanism.

[0007] Furthermore, the rotary drive unit includes a rotary drive member, and arc guide rails symmetrically arranged on both sides of the rotary drive member, a slider is provided on the arc guide rail, a connecting column is fixed on the slider, and the connecting column is connected to the platform.

[0008] Preferably, the arc-shaped guide rail is provided with limit blocks near both ends thereof.

[0009] Furthermore, the support portion includes a plurality of support columns fixedly mounted on the output end of the moving component, and a cam guide is provided on the support column, and the cam guide is in contact with the bottom surface of the platform.

[0010] Furthermore, the cam guide is connected to the support column through an adjustment assembly.

[0011] Preferably, the adjustment assembly includes an adjustment block and a mounting block, the cam guide is mounted on the adjustment block, the adjustment block is fixed on the support column, a waist-shaped hole is provided on the adjustment block, a screw passes through the waist-shaped hole and is threadedly connected to the support column, at least one adjustment member is threadedly connected to the mounting block, and its head end is in contact with the bottom of the adjustment block.

[0012] Furthermore, the support portion is centrally symmetrically arranged, and its symmetry center coincides with the rotation center of the rotation drive portion.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The PCB pressing device provided by the utility model uses a rotating mechanism, which directly transmits the pressure received on the platform support plate to the slider and the arc-shaped guide rail through the connecting column, thereby reducing the pressure on the rotating drive component and extending the service life of the rotating drive component; further, a support part is provided under the platform, which, together with the rotating drive part, bears the pressure during the heavy-load pressing, shares the pressure of the supporting main press, and further reduces the pressure on the rotating drive component, thereby significantly extending the service life of the rotating drive component, significantly reducing its rotational resistance, and improving the accuracy of rotational alignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution proposed by the present invention, it is described in detail below in combination with the embodiments and drawings. It should be understood that the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, these drawings can be changed under the concept of the present invention.

[0016] Figure 1 This is an assembly perspective view of an embodiment of the PCB pressing device provided by the utility model;

[0017] Figure 2 This is a three-dimensional diagram of the rotating mechanism of the utility model;

[0018] 1. Rotating mechanism; 10. First mounting plate; 12. Rotating drive unit; 121. Rotating drive member; 122. Arc guide rail; 123. Slider; 124. Limit block; 125. Connecting column; 13. Support unit; 131. Support column; 132. Mounting block; 133. Cam guide; 134. Adjusting block; 135. Adjusting member; 2. Platform; 20. Platform support plate. DETAILED DESCRIPTION

[0019] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 should not be understood as a limitation on the present invention.

[0021] Please also refer to Figure 1 、 Figure 2 In this embodiment, a rotating mechanism for a PCB pressing device includes a platform 2 for supporting a PCB. The platform 2 includes a platform support plate 20. A rotating mechanism 1 is provided below the platform support plate 20 to drive the platform support plate 20 to rotate. The rotating mechanism 1 includes a first mounting plate 10. A rotating drive unit 12 is provided in the middle of the first mounting plate 10. The rotating drive unit 12 includes a rotating drive member 121. The rotating drive member 121 can be a DD motor, which drives the heat insulation plate 111 to rotate smoothly according to a set rotation angle. Of course, during the pressing process, the downward pressure generated by the pressing head can reach more than 4000N. This pressure will be transmitted to the rotating drive member 121 through the platform 2 and the heat insulation portion. Such a large downward pressure can easily cause damage to the movable parts within the rotating drive member 121, reducing its service life. At the same time, it may be necessary to realize the rotational alignment function through the rotating drive member 121 when bearing the downward pressure. This will easily make the entire rotating mechanism difficult to rotate, and thus fail to function properly in line of sight. To this end, in this embodiment, preferably, arcuate guide rails 122 are provided on the left and right sides of the rotary drive member 121. Sliders 123 are slidably connected to the arcuate guide rails 122. The arcuate guide rails 122 and the slides 123 assist the rotary drive member 121 in rotational alignment. Limit blocks 124 are provided near both ends of the arcuate guide rails 122. When the slides 123 move to their respective limit positions, they release from the limit blocks 124, thereby restricting the movement of the slides 123. Thus, the limit blocks 124 limit the maximum rotation angle of the entire rotary assembly. Connecting posts 125 are fixed to the slides 123. The upper portion of the connecting posts 125 is fixedly connected to the platform support plate 20. Thus, the connecting posts 125 directly transmit the pressure applied to the platform support plate 20 to the slides 123 and the arcuate guide rails 122, thereby supporting the platform support plate 20 and sharing the pressure applied to the platform support plate 20. This reduces the pressure on the rotary drive member 121 and extends the service life of the rotary drive member 121.

[0022] Furthermore, support parts 13 are provided on both sides of the arc guide rail 122. The support part 13 includes a plurality of support columns 131 fixed on the first mounting plate 10. An adjustment block 134 and a mounting block 132 are fixed on the support column 131. The mounting block 132 is arranged below the adjustment block 134. A cam guide 133 is fixed on the adjustment block 134. An adjustment member 135 for adjusting the contact surface between the cam guide 133 and the platform 2 is fixed on the mounting block 132. A waist hole and a fixing member that passes through the waist hole and is fixed to the support column 131 are provided on the adjustment block 134. In order to ensure that the surface of the cam guide 133 is in contact with the bottom surface of the platform support plate 20, the adjustment block 135 is provided. 134 can be adjusted vertically. When the surface of the cam guide 133 is in contact with the bottom surface of the platform support plate 20, the adjustment member 135 presses against the bottom of the adjustment block 134, and the adjustment member 135 can adjust the height between the mounting block 132 and the adjustment block 134. By contacting the platform support plate 20 and sliding in the direction of rotation, the cam guide 133 assists the rotary drive member 121 in completing rotational alignment, while also sharing the pressure of the support pressure, further reducing the pressure on the rotary drive member 121, thereby significantly extending the service life of the rotary drive member 121, significantly reducing its rotational resistance, and improving the accuracy of rotational alignment. Of course, the number of cam guides 133 can be adaptively increased according to the pressure during the pressure.

[0023] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0024] The above description is a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A rotating mechanism for a PCB pressing device, used to carry a platform and drive the platform to rotate, characterized by: The rotating mechanism includes a rotating driving portion and a supporting portion, wherein the supporting portion is located between the platform and the moving mechanism, and the supporting portion directly transmits part or all of the pressure of the platform to the moving mechanism.

2. The rotating mechanism for a PCB pressing device according to claim 1, wherein: The rotary drive unit includes a rotary drive member and arc guide rails symmetrically arranged on both sides of the rotary drive member. A slider is provided on the arc guide rail. A connecting column is fixed on the slider. The connecting column is connected to the platform.

3. The rotating mechanism for a PCB pressing device according to claim 2, wherein: The arc-shaped guide rail is provided with limit blocks near both ends thereof.

4. The rotating mechanism for a PCB pressing device according to claim 3, wherein: The support portion includes a plurality of support columns fixedly arranged on the output end of the moving component. A cam guide is provided on the support column, and the cam guide is in contact with the bottom surface of the platform.

5. The rotating mechanism for a PCB pressing device according to claim 4, wherein: The cam guide is connected to the support column through an adjustment assembly.

6. The rotating mechanism for a PCB pressing device according to claim 5, wherein: The adjustment assembly includes an adjustment block and a mounting block, the cam guide is mounted on the adjustment block, the adjustment block is fixed on the support column, a waist-shaped hole is provided on the adjustment block, a screw passes through the waist-shaped hole and is threadedly connected to the support column, at least one adjustment member is threadedly connected to the mounting block, and its head end is in contact with the bottom of the adjustment block.

7. The rotating mechanism for a PCB pressing device according to any one of claims 1 to 6, characterized in that: The support portion is centrally symmetrically arranged, and its symmetry center coincides with the rotation center of the rotation drive portion.

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