WO2019000919A1

WO2019000919A1 - Fixture for assisting mutual welding process and welding fixture apparatus

Info

Publication number: WO2019000919A1
Application number: PCT/CN2018/072820
Authority: WO
Inventors: 谢飞; 张佳成; 苏胜利; 周俊吉
Original assignee: 京东方科技集团股份有限公司; 成都京东方光电科技有限公司
Priority date: 2017-06-28
Filing date: 2018-01-16
Publication date: 2019-01-03
Also published as: CN206839498U

Abstract

Provided are a fixture for assisting a mutual welding process and a welding fixture apparatus. The fixture comprises a substrate (9). One side of the substrate (9) is provided with multiple protrusions (10). The protrusions (10) at least correspond to joining portions of a first structure and a second structure on which a mutual welding process is to be performed. The fixture enables tight attachment between the first structure and the second structure at the joining portions in the mutual welding process, thereby ensuring tight welding of the first structure and the second structure at the joining portions, and effectively preventing an incomplete weld.

Description

Fixture and welding fixture for assisting interactive welding process

Technical field

The present disclosure relates to the field of display technology, and in particular, to a jig and a soldering fixture for assisting an interactive soldering process.

Background technique

The mask for vapor deposition is an indispensable component in the evaporation process, and the performance of the mask for vapor deposition directly affects the patterning effect in the evaporation process. The phenomenon of virtual soldering when soldering the support strips and the fine mask strips causes problems of poor patterning accuracy in the evaporation process.

Public content

The present disclosure proposes a clamp and a welding fixture for assisting an interactive welding process.

The present disclosure provides a jig for assisting an interactive soldering process, including: a substrate substrate; and a plurality of protrusions disposed on one side of the substrate substrate, the protrusions being at least in accordance with an interaction welding process to be performed Corresponding to the intersection of the welded structure and the second structure to be welded.

The base substrate may be provided with a groove in which a driving unit is disposed, and the driving unit drives the protrusion to move relative to the substrate in the groove.

The plurality of grooves may be located at positions corresponding to a plurality of the protrusions on the base substrate, the driving unit includes a lifting unit, and the lifting unit is used for controlling The projection extends from the recess or controls the projection to retract into the recess.

The groove may be configured as a sliding groove in which the protrusion slides in a plane in which the base substrate is located.

The driving unit may include a sliding unit coupled to the protrusion for driving the protrusion to slide in the sliding groove.

The protrusion may correspond only to the intersection of the first structure to be welded and the structure to be welded.

The base substrate may be a glass substrate.

The protrusion and the base substrate may be integrally formed.

The height of the protrusion ranges from 0.5 mm to 5 mm.

The heights of all of the protrusions on the clamp are equal.

The shape of the sliding groove may include at least one of a straight shape, a curved shape, and a polygonal line shape.

The jig is used in an interactive soldering process for a mask for vapor deposition, the mask for vapor deposition comprising: a fixing frame, a plurality of fine mask strips on the fixing frame, and a fixing mask on the fixing frame a plurality of support strips; the first to-be-welded structure is the fine mask strip; and the second to-be-welded structure is the support strip.

An alignment mark for aligning the support strip, the fine mask strip, and the fixed frame may also be disposed on the base substrate.

The present disclosure also provides a welding fixture comprising the above described clamp.

DRAWINGS

1 is a top plan view of a jig for assisting an interactive soldering process according to an embodiment of the present disclosure;

Figure 2 is a schematic cross-sectional view taken along line A-A of Figure 1;

3 is a plan view of a mask for vapor deposition in the present disclosure;

4 is a schematic structural view of a welding fixture for preparing a mask for vapor deposition;

FIG. 5 is a top view of a jig for assisting an interactive soldering process according to another embodiment of the present disclosure; FIG.

Figure 6 is a schematic cross-sectional view taken along line B-B of Figure 5;

FIG. 7 is a top view of a jig for assisting an interactive soldering process according to another embodiment of the present disclosure; FIG.

Figure 8 is a schematic cross-sectional view taken along line C-C of Figure 7.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, a jig and a welding fixture for assisting an interactive welding process provided by the present disclosure will be described in detail below with reference to the accompanying drawings.

1 is a top view of a jig for assisting an interactive welding process according to an embodiment of the present disclosure, and FIG. 2 is a cross-sectional view of the AA direction of FIG. 1 . As shown in FIGS. 1 and 2 , an embodiment of the present disclosure provides A jig for assisting the interactive soldering process, comprising: a base substrate 9, one side of the base substrate 9 (for example, the upper side of the base substrate 9 in FIG. 2) is provided with a plurality of protrusions 10, and the protrusions 10 are at least Corresponding to the intersection of the first structure to be welded and the second structure to be welded to be subjected to the interactive welding process. As shown in FIGS. 1 and 2, the projection 10 may have a length L and a width W, and a height H that protrudes outward from the upper surface of the base substrate 9.

In the mutual welding of the first to-be-welded structure and the second to-be-welded structure by using the jig provided by the embodiment, it is only necessary to place the jig under the first to-be-welded structure and the second to-be-welded structure, and to make the convex The 10 corresponds to the intersection of the first structure to be welded and the structure to be welded. The protrusion 10 can make the first structure to be welded and the second structure to be welded closely fit at the interface, thereby effectively avoiding the problem of occurrence of the virtual welding in the interactive welding process.

As a specific application, the jig of the present disclosure can be used in an interactive soldering process for a mask for vapor deposition. Generally, a support layer is disposed in the mask for vapor deposition, and the support layer includes a plurality of support strips disposed across the fine mask strip, and the support mask layer and the fine mask are used by using a cross welding process. The intersection of the layers is welded to fix the support strips and the fine mask strips, thereby supporting the fine mask strips, thereby preventing the fine mask strips in the fine mask layer from being affected by gravity, high temperature and the like during the evaporation process. Produce deformation.

The mask for vapor deposition is described in detail below with reference to FIGS. 3 and 4. 3 is a plan view of a mask for vapor deposition in the present disclosure, and FIG. 4 is a schematic view showing the structure of a soldering fixture for preparing a mask for vapor deposition. As shown in FIG. 3 and FIG. 4, the mask for vapor deposition includes: a fixed frame 1, a fine mask layer 2, a cover mask layer 3, and a support mask layer 4, wherein the fine mask layer 2 includes a plurality of each other A fine mask strip 2a disposed in parallel, a gap is formed between adjacent fine mask strips 2a; the cover mask layer 3 includes a plurality of cover strips 3a for covering between adjacent fine mask strips 2a The gap; the support mask layer 4 includes a plurality of support strips 4a, and in a plane as shown in FIG. 3, the support strips 4a are disposed perpendicular to the fine mask strips 2a, and in a region and finely intersected with the fine mask strips 2a The mask strip 2a is fixed for supporting the fine mask strip 2a. The plurality of support strips 4a are fixed to the fine mask strip 2a in parallel with each other at an interval to prevent the fine mask strip 2a from being deformed by gravity or the like (for example, the fine mask strip 2a is drooping); the fine mask strip 2a, the cover strip 3a and the support strip 4a are both fixed to the fixed frame 1.

In the preparation process of the mask for vapor deposition, it is necessary to use a soldering fixture. As shown in FIG. 4, the soldering fixture generally includes an operating platform, a netting machine 6 (for stretching the fine mask strip 2a), and The soldering device 7 fixes the fine mask layer 2, the cover mask layer 3, and the support mask layer 4 to the fixed frame 1 in order by the solderer 7 to obtain a mask for vapor deposition. When the fine mask layer 2 and the support mask layer 4 are fixed to the fixed frame 1, it is necessary to use a mother glass 8. The alignment mother board 8 is provided with an alignment mark for aligning the fixing frame 1, the fine mask strip 2a and the support strip 4a, thereby ensuring that the fine mask strip 2a and the support strip 4a can be accurately welded on the fixed frame 1. .

After both the support mask layer 4 and the fine mask layer 2 are fixed to the fixed frame 1, it is necessary to weld the support strip 4a and at least part of the intersection 5 of the fine mask strip 2a by an interactive soldering process.

In an embodiment of the present disclosure, the fine mask strip 2a is used as the first structure to be welded, and the support strip 4a is used as the second structure to be welded. The projections 10 on the jig provide support for the junction 5 of the fine mask strip 2a and the support strip 4a to avoid the phenomenon of virtual soldering during the interactive soldering process.

Specifically, after the fine mask strip 2a and the support strip 4a are fixed to the fixed frame 1 by the alignment mother substrate 8, the mask for vapor deposition is raised, and the alignment mother substrate 8 is removed from the mask for vapor deposition. The lower part is removed, and then the jig provided by the present disclosure is placed under the mask for vapor deposition, and is aligned with the mask for vapor deposition, and then the mask for vapor deposition is lowered, at this time on the jig. The protrusion 10 can at least lift the intersection 5 of the support strip 4a and the fine mask strip 2a to ensure that the support strip 4a and the fine mask strip 2a are in close contact at the junction 5, and then the junction 5 When the mutual soldering is performed, the support strip 4a and the fine mask strip 2a can be tightly welded at the junction 5, thereby effectively avoiding the problem of the occurrence of the virtual soldering, thereby effectively preventing the deformation of the fine mask strip 2a during the evaporation process. . By using the jig of the present disclosure, there is almost no gap between the support strip and the fine mask strip at the intersection, thereby preventing the phenomenon of virtual soldering when soldering the support strip and the fine mask strip, at which time the support strip can be applied to the fine mask strip Effective support is provided to overcome the problem of poor accuracy of patterning in the evaporation process.

Considering that the height of the protrusion 10 is low, there is no guarantee that the support strip 4a and the fine mask strip 2a are in close contact at the interface; and when the height of the protrusion 10 is high, the support strip 4a and the fine mask strip are easily caused. 2a is too large and easily causes damage. In combination with the above factors, optionally, the height H of the protrusion 10 ranges from 0.5 mm to 5 mm.

Alternatively, the heights of all the bumps 10 on the base substrate 9 are equal. At this time, the consistency of the subsequent welding effect can be effectively ensured.

Alternatively, the projection 10 on the base substrate 9 corresponds only to the intersection 5 of the support strip 4a and the fine mask strip 2a. At this time, when the jig is placed under the mask for vapor deposition, only the intersection 5 of the support strip 4a and the fine mask strip 2a is lifted up on the mask for vapor deposition, which is convenient for the operator to pass directly. The raised area on the mask determines the intersection 5 of the support strip 4a and the fine mask strip 2a. During the welding process, the operator only needs to selectively weld the jacked up area according to actual needs.

In order to achieve that the protrusion 10 on the base substrate 9 corresponds only to the intersection 5 of the support strip 4a and the fine mask strip 2a, the length L of the protrusion 10 is approximately equal to the width of the fine mask strip 2a, and convex The width W of the 10 is approximately equal to the width of the support bar 4a. Wherein, the width of the fine mask strip 2a is related to the size of the product to be masked. For example, the mask for vapor deposition is a mask for a display panel (length of 426.72 mm and width of 320.04 mm) having a size of 21 inches and an aspect ratio of 4:3, and a mask for vapor deposition. The width of the fine mask strip 2a tends to be slightly larger than 426.72 mm, and the length L of the protrusion 10 on the base substrate 9 can be taken in the vicinity of 426.72 mm. Thus, the length L of the protrusion 10 in the present embodiment can be made equivalent to the length of the display panel corresponding to the mask for vapor deposition.

Alternatively, the protrusion 10 is integrally formed with the base substrate 9, and the integrally formed jig has better impact resistance and stability, and can effectively improve the service life of the jig.

Optionally, the base substrate 9 is further provided with an alignment mark for aligning the support strip 4a, the fine mask strip 2a and the fixed frame 1. Since the alignment mark is present on the jig, when the process of fixing the support bar 4a and the fine mask strip 2a to the fixed frame 1 is performed, the jig is placed under the mask for vapor deposition for support The strip 4a, the fine mask strip 2a and the fixed frame 1 are aligned, so that it is no longer necessary to use a separate alignment mother board 8, which reduces the production cost.

Further, since the process of fixing the support strip 4a and the fine mask strip 2a to the fixed frame 1 and the process of welding the support strip 4a and the fine mask strip 2a alternately, the same jig can be used, thereby eliminating the need for The step of switching between the mother board 8 and the jig can effectively shorten the production cycle of the mask for vapor deposition.

Therefore, an embodiment of the present disclosure provides a jig for assisting an interactive soldering process, which can make the support strip 4a and the fine mask strip 2a closely fit at the interface when performing the interactive soldering process, thereby ensuring support The strip 4a and the fine mask strip 2a are tightly welded at the junction, which effectively avoids the problem of the occurrence of the virtual soldering, thereby overcoming the problem of poor precision of the patterning in the evaporation process.

Another embodiment of the present disclosure provides a jig that is exemplified by an example in which the jig is used in an inter-welding process for a mask for vapor deposition. 5 is a plan view of a jig for assisting an interactive soldering process provided by the embodiment, and FIG. 6 is a cross-sectional view taken along line BB of FIG. 5, as shown in FIGS. 5 and 6, with the protrusion 10 fixed to the substrate. The technical solution of the surface of the substrate 9 is different in that the projection 10 can be moved in the vertical direction (i.e., the direction indicated by the arrow in Fig. 6) with respect to the base substrate 9 in the present embodiment.

Optionally, a plurality of grooves 11 are disposed on the substrate substrate 9 corresponding to the plurality of protrusions 10, and the groove 11 is provided with a protrusion for controlling the protrusion 10 to protrude from the groove 11 or the control protrusion 10 is retracted. To the lifting unit 12 in the recess 11, the lifting unit 12 is connected to the projection 10. Alternatively, the lifting units 12 may be arranged to interlock with each other, so that the lifting unit 12 can simultaneously extend or retract the plurality of protrusions 10 to the grooves 11, ensuring consistency of subsequent welding effects. The lifting units 12 can also be arranged to move separately from each other, thereby facilitating the operator to select a specific position of the interactive welding, which facilitates the separate repair and continued operation of the unfinished welds after an interactive welding.

It should be noted that the lifting unit in the embodiment may be a structure that can be lifted and lowered, such as a lifting motor or a rotating telescopic shaft.

In addition, the jig provided by the present embodiment is also provided with an alignment mark for aligning the support strip 4a, the fine mask strip 2a and the fixed frame 1. When the support strip 4a, the fine mask strip 2a and the fixed frame 1 are aligned, the protrusions 10 can be controlled to be retracted into the recess 11 by the lifting unit 12 to prevent the protrusions 10 from supporting the strip 4a and the fine mask. The strip 2a is jacked up to affect the alignment accuracy of the support strip 4a, the fine mask strip 2a and the fixed frame 1.

When the support strip 4a and the fine mask strip 2a are alternately welded, the position of the joint of the interactive soldering may be performed as needed, and the protrusion 10 corresponding to the boundary where the interactive soldering is required is controlled by the lifting unit 12 from the concave The groove 11 protrudes. At this time, the interface on the vapor deposition mask is only lifted at the boundary where the cross-welding is required, and the other positions are not jacked up. Before the operator performs the welding, the operator can directly determine the position to be welded through the raised area on the mask to shorten the time for the operator to find the welding position.

Another embodiment of the present disclosure provides a jig that is still exemplified by an example in which the jig is used in an inter-welding process for a mask for vapor deposition. FIG. 7 is a top view of a jig for assisting an interactive soldering process according to another embodiment of the present disclosure, and FIG. 8 is a cross-sectional view of the CC in FIG. 7 , as shown in FIG. 7 and FIG. 8 , and in the above embodiment. The protrusion 10 can be moved in a direction perpendicular to the substrate substrate 9 in which the protrusion 10 can be in the plane in which the substrate substrate 9 is located (for example, the direction indicated by the arrow in FIG. 8). Slide inside.

Alternatively, the base substrate 9 is provided with a sliding groove 13 for sliding the projection 10 in a large area in the plane in which the base substrate 9 is located, and one end of the projection 10 is located in the sliding groove 13. Considering that the intersections 5 of the support strips 4a and the fine mask strips 2a on the different evaporation masks are different, the position of the intersections 5 of the support strips 4a and the fine mask strips 2a on the mask for evaporation can be used. The position of the bump relative to the base substrate 9 is adjusted, thereby improving the universality of the jig.

It should be noted that the case where the shape of the sliding groove 13 in FIG. 7 is linear is only exemplary, and it does not limit the technical solution of the present disclosure. The sliding groove 13 in the present disclosure may also have other shapes. For example, curved or polygonal. Further, the shape of the sliding groove 13 may be a combination of a plurality of shapes. It will be appreciated that the different shapes of the sliding grooves 13 can be used to define the trajectory of the projections 10 in the sliding grooves 13, facilitating a variety of operational designs.

Optionally, the fixture further includes: a sliding unit 14 disposed in the sliding slot 13 , the sliding unit 14 being coupled to the protrusion 10 for driving the protrusion 10 to slide in the sliding slot 13 . Alternatively, the sliding units 14 may be disposed to interlock with each other, so that the sliding unit 14 can slide the plurality of protrusions 10 simultaneously in the sliding groove 13, ensuring consistency of subsequent welding effects. The sliding units 14 can also be arranged to move separately from each other, thereby facilitating the operator to select a specific position of the interactive welding, which facilitates the separate repair and continued operation of the unfinished welds after an interactive welding. The arrangement of the sliding unit 14 can effectively improve the operability and automation performance of the jig.

It should be noted that, as is known in the art, in the disclosure, after the groove 11 (sliding groove 13) is formed on the base substrate 9, the above two are simultaneously disposed in the groove 11 (sliding groove 13). The lifting unit 12 and the sliding unit 14 in one embodiment are used as a driving unit, or both the lifting unit 12 and the sliding unit 14 are integrated into one driving unit, so that the protrusions 10 can be performed in a direction perpendicular to the substrate substrate 9. The movement can also be performed in a plane parallel to the plane in which the base substrate 9 is located. The details will not be described in detail here.

Another embodiment of the present disclosure provides a welding fixture, comprising: a clamp for assisting an interactive welding process, the clamp adopting any of the clamps provided in any of the above embodiments, and the content of the above embodiment can be referred to for details. , will not repeat them here.

It is to be understood that the above embodiments are merely exemplary embodiments employed to explain the principles of the present disclosure, but the present disclosure is not limited thereto. Various modifications and improvements can be made by those skilled in the art without departing from the spirit and scope of the disclosure, and such modifications and improvements are also considered to be within the scope of the disclosure.

Claims

A fixture for assisting an interactive welding process, including:

Substrate substrate;

A plurality of protrusions are disposed on one side of the substrate substrate, and the protrusions correspond to at least an intersection of the first to-be-welded structure and the second to-be-welded structure to be subjected to the interactive soldering process.
The jig according to claim 1, wherein the base substrate is provided with a groove, and a driving unit is disposed in the groove, the driving unit driving the protrusion in the groove to be opposite to the The substrate substrate is moved.
The jig according to claim 2, wherein said plurality of grooves are respectively located at positions of a plurality of said protrusions on said base substrate, said driving unit comprising a lifting unit for controlling the protrusion to protrude from the groove or to control the protrusion to retract into the groove.
The jig according to claim 2, wherein the groove is configured as a sliding groove that slides the projection in a plane in which the base substrate is located.
The jig according to claim 4, wherein the driving unit includes a sliding unit coupled to the projection for driving the projection to slide in the sliding groove.
The jig according to claim 1, wherein the projection corresponds to only the intersection of the first to-be-welded structure and the second to-be-welded structure.
The jig according to claim 1, wherein the base substrate is a glass substrate.
The jig according to claim 1, wherein the projection is integrally formed with the substrate substrate.
The jig according to claim 1, wherein the height of the protrusion ranges from 0.5 mm to 5 mm.
The clamp of claim 1 wherein all of said projections on said clamp are of equal height.
The jig according to claim 5, wherein the shape of the sliding groove comprises at least one of a straight shape, a curved shape, and a polygonal line shape.
The jig according to claim 1, wherein the jig is used in an interactive soldering process for a mask for vapor deposition, the mask for vapor deposition comprising: a fixing frame, a plurality of fines on the fixing frame a mask strip and a plurality of support strips on the fixed frame;

The first structure to be welded is the fine mask strip;

And the second structure to be welded is the support strip.
The jig according to claim 10, wherein the base substrate is further provided with an alignment mark for aligning the support strip, the fine mask strip, and the fixed frame.
A welding fixture comprising: the clamp of any of the preceding claims 1-13.