CN216742331U

CN216742331U - Display module press-fit jig

Info

Publication number: CN216742331U
Application number: CN202122999708.0U
Authority: CN
Inventors: 李漫铁; 耿胜国; 周拥; 周杰
Original assignee: Ledman Optoelectronic Hz Co ltd
Current assignee: Ledman Optoelectronic Hz Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-06-14
Anticipated expiration: 2031-12-01

Abstract

The utility model discloses a display module assembly press fitting jig, including matched with last mould and lower mould, be equipped with the brace table of rectangle on the lower mould, still be equipped with four sliders that can follow the horizontal direction and remove on the lower mould, four sliders are close to the four sides setting of brace table respectively, and arbitrary one slider can be followed the direction on one side of the brace table that this slider of perpendicular to is close to and removed, go up the mould and include the clamp plate along vertical direction liftable, the one side that the clamp plate is close to the lower mould is equipped with four convex guide blocks, four guide blocks support with four slider one-to-ones respectively and hold and order about the slider and be close to the brace table. The utility model provides a display module assembly pressing jig makes the geometric centre of drain pan and the fixed back drain pan of unit board bonding and the geometric centre of unit board be located same vertical line, has improved the position precision of lamp pearl on the display module assembly, ensures that the LED display screen has good display effect.

Description

Display module press-fit jig

Technical Field

The utility model relates to a display screen technician field especially relates to a display module assembly pressing fixture.

Background

At present, in the production process of an LED display screen, a pressing jig is generally used for positioning a unit plate and a bottom shell during the assembly of the unit plate and the bottom shell, and pressure maintaining is carried out after the unit plate is bonded with the bottom shell so as to ensure that the unit plate is firmly bonded with the bottom shell.

As shown in fig. 1, since the unit board 1 and the bottom case 2 are generally designed to be rectangular, a right-angled block is generally adopted in the conventional pressing jig to abut against one corner of the unit board 1 or the bottom case 2, and then the unit board 1 or the bottom case 2 is pushed to approach the block at the other side of the unit board 1 or the bottom case 2, so as to position the unit board 1 or the bottom case 2. However, there is certain error in the size of cell board 1 or drain pan 2 in the production process, and the length of side of cell board 1 is inconsistent with the length of side of drain pan 2 promptly, consequently adopt the dog of right angle shape to fix a position the one corner that can make drain pan 2 erroneous tendency cell board 1 at the adhesive in-process, the skew appears in the position that leads to the lamp pearl on the display module who obtains, can produce harmful effects to LED display screen later stage use, especially the dislocation of partial lamp pearl can seriously influence the holistic display effect of LED display screen after a plurality of display module splices.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the utility model provides a can be with the display module assembly pressfitting tool of drain pan pressfitting on the cell board between two parties.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a display module group pressfitting tool, includes matched with and goes up mould and lower mould, be equipped with the brace table of rectangle on the lower mould, still be equipped with four sliders that can follow the horizontal direction and remove on the lower mould, four the slider is close to respectively the four sides setting of brace table, and arbitrary one this can be followed to the slider is close to the direction on one side of brace table removes, it includes along the clamp plate of vertical direction liftable to go up the mould, the clamp plate is close to the one side of lower mould is equipped with four convex guide blocks, four the guide block respectively with four the slider one-to-one supports holds and orders about the slider is close to the brace table.

Furthermore, the guide block is provided with a first inclined surface, and the sliding block is provided with a second inclined surface matched with the first inclined surface.

Furthermore, still be equipped with the guide post on the lower mould, the axial of guide post is unanimous with vertical direction, go up to be equipped with on the mould with guide post matched with guiding hole.

Furthermore, four limiting blocks are further arranged on the lower die, the limiting blocks are right-angled and four, the limiting blocks are respectively abutted to the four corners of the supporting table, and one sliding block is arranged between any two adjacent limiting blocks.

Further, the lower die is further provided with a fixed block, the fixed block is located on one side, away from the support table, of the sliding block, a first movable pin is arranged on the fixed block, the first pin penetrates through the fixed block and is fixedly connected with the sliding block, and the moving direction of the first pin is consistent with the moving direction of the sliding block, connected with the first pin.

Furthermore, the first pin is sleeved with a first elastic piece which drives the first pin to move in the direction away from the supporting table, one end of the two opposite ends of the first elastic piece in the stretching direction abuts against the fixing block, and the other end of the first elastic piece abuts against the first pin.

Furthermore, one surface of the pressing plate, which is close to the lower die, is provided with a pressing block which can move along the vertical direction and a driving piece which drives the pressing block to move towards the direction close to the lower die.

Furthermore, still be equipped with on the clamp plate and run through the clamp plate and with briquetting fixed connection's second pin, the second pin is in can follow vertical direction and remove on the clamp plate, just the cover is equipped with on the second pin and orders about the briquetting is to being close to the second elastic component of the direction removal of clamp plate.

Furthermore, go up the mould still include respectively with four the annular plate of guide block fixed connection, the annular plate is located the clamp plate is kept away from one side of lower mould, annular plate and four the guide block can follow vertical direction synchronous motion just be equipped with on the clamp plate and dodge the position groove of keeping away of guide block.

Further, still be equipped with on the annular plate and run through the annular plate and with clamp plate fixed connection's third pin, the third pin is in can follow vertical direction and remove on the annular plate, just the cover is equipped with on the third pin and orders about the annular plate is to keeping away from the third elastic component of the direction removal of clamp plate.

The beneficial effects of the utility model reside in that: the utility model provides a press-fit jig for a display module, which positions and maintains pressure of a unit plate and a bottom shell through the matching of an upper die and a lower die, when the display module is assembled, the unit plate and the bottom shell are sequentially placed on a support table, at the moment, the unit plate and the bottom shell are positioned in an area enclosed by four sliders, after the unit plate and the bottom shell are placed, the upper die is pressed on the lower die from the right top, at the moment, four guide blocks on the upper die are respectively and correspondingly abutted against four sliders on the lower die one by one, and the four sliders are driven to be synchronously close to the unit plate and the bottom shell, so that the four sliders are respectively and correspondingly abutted against four side edges of the bottom shell to position the bottom shell on the unit plate, and the four sliders are synchronously moved to center the position of the bottom shell on the unit plate, so that the geometric center of the bottom shell and the unit plate after the bottom shell and the unit plate are fixedly adhered are positioned on the same vertical line, thereby improving the position precision of a lamp bead on the display module, the LED display screen is ensured to have good display effect.

Drawings

FIG. 1 is a schematic diagram of a display module in the prior art;

fig. 2 is a schematic structural view of a display module pressing jig according to a first embodiment of the present invention;

fig. 3 is an exploded view of a display module pressing fixture according to a first embodiment of the present invention;

fig. 4 is a cross-sectional view of a display module pressing fixture according to a first embodiment of the present invention;

FIG. 5 is an enlarged view taken at A in FIG. 4;

fig. 6 is a cross-sectional view of another cross-section of a display module pressing fixture according to an embodiment of the present invention;

FIG. 7 is an enlarged view at B in FIG. 6;

fig. 8 is a schematic structural view of a lower mold of a display module pressing fixture according to a first embodiment of the present invention;

fig. 9 is a schematic structural view of an upper mold of a display module pressing jig according to a first embodiment of the present invention;

fig. 10 is a cross-sectional view of a display module pressing jig according to a second embodiment of the present invention;

fig. 11 is a cross-sectional view of a display module pressing fixture according to the third embodiment of the present invention.

Description of reference numerals:

1. a unit plate; 2. a bottom case; 3. an upper die; 31. pressing a plate; 32. a guide hole; 33. a drive member; 34. a second pin; 35. a second elastic member; 36. avoiding a position groove; 4. a lower die; 41. a support table; 42. a guide post; 43. a limiting block; 44. a guide rail; 45. an elastic pad; 5. a slider; 51. a second inclined plane; 6. a guide block; 61. a first inclined plane; 7. a fixed block; 71. a first pin; 72. a first elastic member; 8. briquetting; 81. profiling surfaces; 9. an annular plate; 91. a third pin; 92. and a third elastic member.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 to 11, a press-fit jig for a display module includes an upper mold 3 and a lower mold 4 that are matched with each other, a rectangular support table 41 is disposed on the lower mold 4, four sliders 5 capable of moving in a horizontal direction are further disposed on the lower mold 4, the four sliders 5 are respectively disposed near four sides of the support table 41, any one of the sliders 5 is capable of moving in a direction perpendicular to a side of the support table 41 near the slider 5, the upper mold 3 includes a press plate 31 capable of moving in a vertical direction, four protruding guide blocks 6 are disposed on a side of the press plate 31 near the lower mold 4, and the four guide blocks 6 respectively abut against the four sliders 5 one to one and drive the slider 5 to approach the support table 41.

From the above description, the beneficial effects of the present invention are: the utility model provides a display module assembly pressing jig makes the geometric centre of drain pan 2 and the geometric centre of cell board 1 lie in same vertical line after drain pan 2 and cell board 1 bond are fixed, has improved the position precision of lamp pearl on the display module assembly, ensures that the LED display screen has good display effect.

Further, the guide block 6 has a first inclined surface 61, and the slide block 5 is provided with a second inclined surface 51 matched with the first inclined surface 61.

As can be seen from the above description, the first inclined surface 61 provided on the guide block 6 and the second inclined surface 51 provided on the slider 5 cooperate to enable the slider 5 to move in a direction approaching the support table 41 under the driving of the guide block 6, thereby ensuring smooth movement of the guide block 6 on the lower die 4.

Further, the lower die 4 is further provided with a guide post 42, the axial direction of the guide post 42 is consistent with the vertical direction, and the upper die 3 is provided with a guide hole 32 matched with the guide post 42.

As can be seen from the above description, the lower mold 4 is provided with the guide posts 42 for guiding the upper mold 3 to cooperate with the lower mold 4, and the upper mold 3 is provided with the guide holes 32 cooperating with the guide posts 42, so as to ensure that the upper mold 3 moves in the vertical direction when the upper mold 3 cooperates with the lower mold 4, so that the four guide blocks 6 simultaneously contact with the four sliders 5 in a one-to-one correspondence and drive the four sliders 5 to move synchronously.

Further, four limiting blocks 43 are further arranged on the lower die 4, the limiting blocks 43 are right-angled, the four limiting blocks 43 are respectively abutted to four corners of the supporting table 41, and one sliding block 5 is arranged between any two adjacent limiting blocks 43.

As can be seen from the above description, the four corners of the supporting platform 41 are respectively provided with the right-angled stoppers 43 to surround the area for accommodating the unit board 1 and the bottom case 2 and position the unit board 1 and the bottom case 2 in advance, so as to place the unit board 1 and the bottom case 2 on the supporting platform 41 before assembling.

Further, a fixed block 7 is further arranged on the lower die 4, the fixed block 7 is located on one side, away from the support table 41, of the slider 5, a movable first pin 71 is arranged on the fixed block 7, the first pin 71 penetrates through the fixed block 7 and is fixedly connected with the slider 5, and the moving direction of the first pin 71 is consistent with the moving direction of the slider 5 connected with the first pin 71.

As can be seen from the above description, when the slider 5 moves in a direction approaching the support base 41, the first pin 71 moves in synchronization with the slider 5, and the movement direction of the slider 5 is limited by the engagement of the first pin 71 with the fixed block 7, thereby preventing the slider 5 from being undesirably displaced when moving.

Further, the first pin 71 is sleeved with a first elastic member 72 for driving the first pin 71 to move in a direction away from the support table 41, one of two opposite ends of the first elastic member 72 in the extension direction abuts against the fixed block 7, and the other end abuts against the first pin 71.

It can be known from the above description that, along with slider 5 moves to the direction that is close to brace table 41, first pin 71 also moves thereupon, and first elastic component 72 is compressed simultaneously, and after the display module assembly was accomplished to go up mould 3 and lower mould 4 and breaks away from, slider 5 and guide block 6 separation, first elastic component 72 recovered original length and driven about guide block 6 and reset this moment, made display module assembly pressfitting tool use more convenient.

Furthermore, a pressing block 8 capable of moving along the vertical direction and a driving element 33 driving the pressing block 8 to move towards the direction close to the lower die 4 are arranged on one surface of the pressing plate 31 close to the lower die 4.

As can be seen from the above description, after the upper mold 3 and the lower mold 4 are closed, the pressing block 8 can be driven by the driving member 33 to approach the bottom case 2 to press the bottom case 2 against the unit board 1, so as to seal the deviation of the dimensions of the unit board 1 and the bottom case 2 in the thickness direction, and ensure that the bottom case 2 is pressed against the unit board 1 for pressure maintaining.

Further, a second pin 34 penetrating through the pressing plate 31 and fixedly connected with the pressing block 8 is further arranged on the pressing plate 31, the second pin 34 can move on the pressing plate 31 along the vertical direction, and a second elastic piece 35 driving the pressing block 8 to move towards the direction close to the pressing plate 31 is sleeved on the second pin 34.

As can be seen from the above description, when the pressing block 8 moves in a direction approaching the lower die 4, the second pin 34 moves synchronously with the pressing block 8, and the second elastic member 35 is compressed, and after the pressure holding is completed, the pressing block 8 can be reset while the second elastic member 35 is returning to its original length.

Further, go up mould 3 still include respectively with four annular plate 9 of guide block 6 fixed connection, annular plate 9 is located the clamp plate 31 is kept away from one side of lower mould 4, annular plate 9 and four guide block 6 can be followed vertical direction synchronous motion just be equipped with on the clamp plate 31 and dodge the groove 36 of keeping away of guide block 6.

As can be seen from the above description, the four guide blocks 6 can be synchronously lifted and lowered in the clearance grooves 36 by the movement of the annular plate 9 relative to the pressing plate 31 in the vertical direction, so as to adjust the relative positions of the guide blocks 6 and the pressing plate 31, and ensure that the slide blocks 5 clamp the unit plate 1 and the bottom case 2 under the driving of the guide blocks 6.

Further, still be equipped with on the annular plate 9 and run through the annular plate 9 and with clamp plate 31 fixed connection's third pin 91, third pin 91 is in can follow vertical direction and move on the annular plate 9, just the cover is equipped with on the third pin 91 and orders about annular plate 9 is to keeping away from the third elastic component 92 of the direction removal of clamp plate 31.

As can be seen from the above description, the third pin 91 moves synchronously with the movement of the annular plate 9, and the third elastic element 92 is compressed when the annular plate 9 is close to the pressing plate 31, so that the annular plate 9 can automatically reset under the driving of the third elastic element 92 after the display module is assembled, thereby facilitating the use of the pressing fixture for the display module.

Example one

Referring to fig. 1 to 9, a first embodiment of the present invention is: a press-fit jig for a display module is used for positioning a unit plate 1 and a bottom shell 2 in the process of assembling the unit plate 1 and the bottom shell 2 of the display module, maintaining pressure after the unit plate 1 is bonded with the bottom shell 2, and enabling the unit plate 1 and the bottom shell 2 to be firmly connected.

As shown in fig. 1 to 3, the display module pressing jig comprises an upper die 3 and a lower die 4 which are matched with each other, the unit plate 1 and the bottom case 2 are sequentially placed on the lower die 4, the unit plate 1 and the bottom case 2 are positioned through the lower die 4, glue is applied between the unit plate 1 and the bottom case 2 in advance, then the upper die 3 is moved to close the upper die 3 and the lower die 4 so as to compress the bottom case 2 on the unit plate 1, and the upper die 3 is moved to open the die and take out the assembled display module after the bottom case 2 and the unit plate 1 are bonded into a whole.

Referring to fig. 3 and 8, the lower mold 4 includes a rectangular support platform 41, the upper surface of the support platform 41 is used for bearing the unit board 1 and the shape of the upper surface of the support platform 41 is consistent with the shape of the unit board 1, the upper die 3 is also provided with four movable sliding blocks 5, the four sliding blocks 5 are respectively arranged close to four sides of the supporting platform 41, the four sliding blocks 5 are respectively parallel to the four sides of the supporting platform 41, any one sliding block 5 can move along the direction vertical to one side of the supporting platform 41 close to the sliding block 5, so as to position the unit plate 1 and the bottom shell 2 by respectively abutting against the four edges of the unit plate 1 and the four edges of the bottom shell 2 through the four slide blocks 5, and the four sliders 5 move synchronously with respect to the support 41 so that the four sides of the unit plate 1 and the bottom case 2 are simultaneously forced and moved, to ensure that the position of the rear bottom case 2 on the unit plate 1 is positioned centrally with respect to the unit plate 1.

Specifically, one surface of the slider 5 close to the supporting platform 41 is provided with an elastic pad 45, when the slider 5 clamps the unit board 1 and the bottom case 2, the elastic pad 45 is in direct contact with the unit board 1 and the bottom case 2 to prevent the slider 5 from crushing the unit board 1 or the bottom case 2, and when the unit board 1 and the bottom case 2 have a deviation in size, one of the unit board 1 and the bottom case 2 can be independently moved under the pushing of the slider 5 to ensure that the bottom case 2 moves to a central position on the unit board 1.

Referring to fig. 3 and 9, the upper mold 3 includes a pressing plate 31 for pressing the bottom case 2 against the unit board 1, the pressing plate 31 is movable in a vertical direction relative to the lower mold 4, and four protruding guide blocks 6 are disposed on a surface of the pressing plate 31 close to the lower mold 4, the four guide blocks 6 respectively abut against the four sliders 5 one by one during the movement of the pressing plate 31 in a direction close to the lower mold 4, and the sliders 5 are driven by the guide blocks 6 to move in a direction close to the supporting table 41 as the pressing plate 31 gradually approaches the lower mold 4, so that the four sliders 5 are driven by the guide blocks 6 to synchronously move towards the supporting table 41 and clamp the unit board 1 and the bottom case 2 placed on the supporting table 41, and further, the position of the bottom case 2 on the unit board 1 is centered by the synchronous movement of the four sliders 5, even the geometric center of the bottom shell 2 and the assembly center of the unit plate 1 are located on the same vertical line, so that the position accuracy of the lamp beads on the obtained display module is improved, and the LED display screen formed by splicing a plurality of display modules is ensured to have a good display effect.

As shown in fig. 3, 8 and 9, in order to stably fit the upper die 3 and the lower die 4, a guide post 42 is disposed on one surface of the lower die 4 close to the upper die 3, an axial direction of the guide post 42 is coincident with a vertical direction, a guide hole 32 fitted with the guide post 42 is disposed on the pressure plate 31, and the pressure plate 31 can move in the vertical direction relative to the lower die 4 by fitting the guide hole 32 with the guide post 42.

In this embodiment, the number of the guide posts 42 is four and four the guide posts 42 are respectively close to the four corners of the supporting table 41, four guide holes 32 are formed in the pressing plate 31, and the guide blocks 6 are matched with the guide posts 42 in a one-to-one correspondence manner, so that the pressing plate 31 is prevented from being inclined when moving, and the movement of the sliding block 5 is not synchronous.

Referring to fig. 4 and 5, a first inclined surface 61 is formed on a surface of the guide block 6 close to the slider 5, a second inclined surface 51 matched with the first inclined surface 61 is formed on the slider 5, when the guide block 6 abuts against the slider 5, the first inclined surface 61 contacts with the second inclined surface 51, and relative sliding is generated between the first inclined surface 61 and the second inclined surface 51 along with the approach of the guide block 6 to the lower mold 4, so that the guide block 6 is driven to move in a direction close to the supporting table 41, and the guide block 6 smoothly slides on the lower mold 4.

As shown in fig. 3, in detail, the lower die 4 is further provided with a guide rail 44 for guiding the movement of the slider 5, any one of the sliders 5 is disposed on two guide rails 44 arranged at intervals, and the two guide rails 44 engaged with the same slider 5 are respectively disposed near opposite ends of the slider 5, and a length direction of the guide rail 44 is consistent with a movement direction of the slider 5 engaged with the guide rail 44, so as to ensure that the slider 5 does not deflect during the movement process, and ensure that the slider 5 is stably moved as a whole under the driving of the guide block 6.

As shown in fig. 8, in order to improve the positioning accuracy of the unit plate 1 and the bottom case 2 on the supporting table 41, four right-angle-shaped stoppers 43 are further disposed on the lower mold 4, the four stoppers 43 are respectively disposed near four corners of the supporting table 41, so as to enclose an area for accommodating the unit plate 1 and the bottom case 2 through the four stoppers 43, the unit plate 1 and the bottom case 2 are sequentially placed in the area before assembly, and one of the sliders 5 is disposed between any two adjacent stoppers 43, so as to reduce the distance that the unit plate 1 and the bottom case 2 move under the pushing of the slider 5, thereby improving the efficiency of positioning the unit plate 1 and the bottom case 2 by the display module pressing jig.

Referring to fig. 6 and 7, a fixed block 7 is further disposed on one side of each of the sliders 5 away from the support platform 41, a first pin 71 penetrating through the fixed block 7 and fixedly connected to the slider 5 is disposed on the fixed block 7, the first pin 71 is movably disposed on the fixed block 7, and a moving direction of the first pin 71 is consistent with a moving direction of the slider 5 fixedly connected to the first pin 71, so as to ensure that the slider 5 moves along a preset direction.

Specifically, the first pin 71 is sleeved with a first elastic member 72 for driving the slider 5 to move in a direction away from the support table 41, one end of two opposite ends of the first elastic member 72 in the telescopic direction abuts against the fixed block 7, and the other end abuts against the first pin 71. When the slider 5 is driven by the guide block 6 to move towards the direction close to the support table 41, the first elastic piece 72 is compressed along with the synchronous action of the first pin 71 and the slider 5, and after the guide block 6 is separated from the slider 5 after the display module is assembled, the first elastic piece 72 recovers to the original length and drives the first pin 71 to drive the slider 5 to move towards the direction away from the support table 41, so that the slider 5 automatically resets after the display module pressing jig is opened, and the assembly of the next display module is facilitated.

As shown in fig. 2 and fig. 3, the working process of the display module pressing fixture provided in this embodiment is as follows: obtaining a unit plate 1 and a bottom shell 2, sequentially placing the unit plate 1 and the bottom shell 2 on the supporting table 41, gluing the unit plate 1 and the bottom shell 2 in advance, wherein the unit plate 1 and the bottom shell 2 are both located in an area surrounded by four limiting blocks 43, moving the pressing plate 31 to enable the guide posts 42 to extend into the guide holes 32, then pressing the pressing plate 31 downwards along the length direction of the guide posts 42 until the pressing plate 31 abuts against the bottom shell 2, in the process that the pressing plate 31 presses downwards, the guide blocks 6 and the sliding blocks 5 abut against one another in a one-to-one correspondence manner and drive the four sliding blocks 5 to respectively act along the guide rails 44 to position the bottom shell 2 at a central position on the unit plate 1, the pressing plate 31 presses the bottom shell 2 on the unit plate 1 until the unit plate 1 and the bottom shell 2 are firmly bonded to obtain a display module, and after the display module is assembled, the pressing plate 31 moves along the guide posts 42 in a direction away from the lower die 4 to assemble the display module The completed display module is taken out from the lower die 4, at this time, the sliding block 5 is automatically reset under the driving of the first elastic element 72, and the display module can be assembled in batch by placing other unit boards 1 and the bottom shell 2 to be assembled on the supporting table 41 and repeating the above actions.

Example two

Referring to fig. 10, a third embodiment of the present invention is another technical solution provided for the structure of the upper mold 3 on the basis of the first embodiment, and the difference from the first embodiment is only that the structure of the upper mold 3 is different.

As shown in fig. 10, in the present embodiment, a pressing block 8 capable of moving in a vertical direction is disposed on one surface of the pressing plate 31 close to the lower die 4, a driving member 33 for driving the pressing block 8 to move in a direction close to the lower die 4 is further disposed on the pressing plate 31, and a contoured surface 81 for engaging with the bottom case 2 is disposed on one surface of the pressing block 8 close to the lower die 4. After the upper die 3 and the lower die 4 are closed, the pressing block 8 is driven to be close to the bottom shell 2 through the driving piece 33 so as to ensure that the bottom shell 2 is pressed on the unit plate 1, and therefore poor bonding between the bottom shell 2 and the unit plate 1 due to a gap between the pressing plate 31 and the bottom shell 2 after the display module pressing jig is assembled due to the fact that errors exist in the thickness of the bottom shell 2 or the unit plate 1 is prevented.

Optionally, the driving member 33 is a screw, the pressing plate 31 is provided with a threaded hole matched with the screw, one end of the screw abuts against the pressing block 8, and the pressing block 8 can be driven to move towards the direction close to the lower die 4 by rotating the screw, so that the pressing jig of the display module is convenient to operate.

Specifically, the pressing plate 31 is further provided with a second pin 34 penetrating through the pressing plate 31 and fixedly connected with the pressing block 8, the second pin 34 is arranged on the pressing plate 31 and can move in the vertical direction, the second pin 34 is sleeved with a second elastic member 35 driving the pressing block 8 to move in the direction close to the pressing plate 31, one end of two opposite ends of the second elastic member 35 in the stretching direction abuts against the pressing plate 31, and the other end of the second elastic member abuts against the second pin 34. When the pressing block 8 is driven by the driving piece 33 to move towards the direction close to the lower die 4, the second pin 34 and the pressing block 8 move synchronously, the second elastic piece 35 is compressed along with the movement of the second pin 34, the driving piece 33 is far away from the pressing block 8 after the assembly of the display module is completed, and at the moment, the second elastic piece 35 recovers the original length and drives the pressing block 8 to move towards the direction close to the pressing plate 31, so that the pressing block 8 automatically resets, and the position of the pressing block 8 is adjusted to ensure that the pressing block 8 is abutted against the bottom shell 2 in the assembly process of the next display module.

Referring to fig. 10, the working process of the display module pressing fixture provided in this embodiment is different from the working process of the display module pressing fixture provided in the first embodiment in that: after the die assembly of the display module pressing jig provided by this embodiment is completed, the driving member 33 needs to be adjusted to enable the driving member 33 to drive the pressing block 8 to abut against the bottom case 2, and after the die assembly of the display module pressing jig is opened, the driving member 33 is adjusted according to actual conditions to enable the pressing block 8 to approach the pressing plate 31, and other action processes are consistent with those of the display module pressing jig provided by the first embodiment.

EXAMPLE III

Referring to fig. 11, the second embodiment of the present invention provides another technical solution for the structure of the upper mold 3 based on the first embodiment, and the difference from the first embodiment is only that the structure of the upper mold 3 is different.

As shown in fig. 11, in the present embodiment, the upper die 3 further includes annular plates 9 respectively fixedly connected to the four guide blocks 6, the annular plates 9 are located on a side of the pressure plate 31 away from the lower die 4, and the pressure plate 31 is provided with a clearance groove 36 for avoiding the guide blocks 6 and enabling the guide blocks 6 to move relative to the pressure plate 31. The upper die 3 and the lower die 4 can be closed and then the annular plate 9 can be pressed to enable the annular plate 9 and the four guide blocks 6 to synchronously move along the vertical direction, so that the slide block 5 is driven to be close to and clamp the unit plate 1 and the bottom shell 2 through the guide blocks 6, the situation that after the press plate 31 is abutted against the bottom shell 2, the geometric center of the unit plate 1 and the geometric center of the bottom shell 2, which are not clamped by the slide block 5, are not on the same plane due to the fact that the slide block 5 is not abutted against the unit plate 1 or the bottom shell 2 is avoided, and the assembling precision of the display module is improved.

Preferably, the annular plate 9 is sleeved on the guide post 42 to ensure that the annular plate 9 drives the guide block 6 to move vertically, so that the four sliding blocks 5 move synchronously under the driving of the guide block 6 and position the bottom case 2 at a central position on the unit board 1.

In detail, the annular plate 9 is further provided with a third pin 91 penetrating through the annular plate 9 and fixedly connected with the pressing plate 31, the third pin 91 is arranged on the annular plate 9 and can move in the vertical direction, the third pin 91 is sleeved with a third elastic member 92 driving the annular plate 9 to move in the direction away from the pressing plate 31, one end of two opposite ends of the third elastic member 92 in the telescopic direction abuts against the annular plate 9, and the other end of the third elastic member abuts against the pressing plate 31. When the annular plate 9 is pressed to enable the annular plate 9 to move towards the direction close to the pressing plate 31, the third elastic piece 92 is compressed along with the movement of the annular plate 9, the annular plate 9 is released after the display module is assembled, and at the moment, the third elastic piece 92 restores to the original length and drives the annular plate 9 to move towards the direction away from the pressing plate 31, so that the annular plate 9 and the guide block 6 automatically reset, and the position of the guide block 6 is adjusted in the assembling process of the next display module, so that the sliding block 5 can clamp the unit plate 1 and the bottom shell 2.

Referring to fig. 11, the difference between the working process of the display module pressing fixture provided in this embodiment and the working process of the display module pressing fixture provided in the first embodiment is as follows: when the display module pressing jig provided by the embodiment is used for closing the mold, the annular plate 9 is firstly pressed to drive the slider 5 to clamp the unit plate 1 and the bottom shell 2, then the pressing plate 31 is pressed to enable the pressing plate 31 and the bottom shell 2 to be abutted and pressure maintaining is carried out, the pressing plate 31 and the annular plate 9 are released after pressure maintaining is finished, and other action processes are consistent with those of the display module pressing jig provided by the first embodiment.

In summary, the pressing fixture for the display module provided by the utility model adopts the upper die and the lower die which are matched to position the unit plate and the bottom shell in the display module and maintains the pressure in the process of bonding the unit plate and the bottom shell, wherein the lower die is provided with a supporting platform for containing the unit plate and the bottom shell, movable slide blocks are arranged around the supporting platform, the upper die is provided with driving blocks which are in one-to-one correspondence with the slide blocks, when the upper die and the lower die are closed, the slide blocks are driven by the driving blocks to simultaneously move towards the direction close to the supporting platform, and then the slide blocks clamp the unit plate and the bottom shell and then position the bottom shell at the central position on the unit plate, the geometric center of unit board and the geometric center of drain pan lie in same vertical line promptly to improve drain pan and unit board's counterpoint precision, the skew appears in the position of lamp pearl on the display module assembly of avoiding after the equipment, ensure to assemble the LED display screen that forms by display module and have good display effect.

The above mentioned is only the embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a display module assembly pressing jig, includes matched with and goes up mould and lower mould, its characterized in that: the lower die is provided with a rectangular supporting table, the lower die is further provided with four sliding blocks capable of moving in the horizontal direction, the sliding blocks are close to four sides of the supporting table respectively, any one of the sliding blocks can move in the direction of one side, close to the supporting table, of the sliding block, the upper die comprises a pressing plate capable of being lifted in the vertical direction, one side, close to the lower die, of the pressing plate is provided with four convex guide blocks, and the four guide blocks are respectively abutted to the four sliding blocks in a one-to-one correspondence mode and drive the sliding blocks to be close to the supporting table.

2. The display module pressing jig according to claim 1, wherein: the guide block is provided with a first inclined plane, and the sliding block is provided with a second inclined plane matched with the first inclined plane.

3. The display module pressing jig according to claim 1, wherein: the lower die is further provided with a guide post, the axial direction of the guide post is consistent with the vertical direction, and the upper die is provided with a guide hole matched with the guide post.

4. The display module pressing jig according to claim 1, wherein: still be equipped with four stoppers on the lower mould, the stopper is right angle shape and four the stopper respectively with the four corners of brace table is supported and is held, arbitrary adjacent two be equipped with one between the stopper the slider.

5. The display module pressing jig according to claim 1, wherein: the lower die is further provided with a fixing block, the fixing block is located on one side, away from the support table, of the sliding block, a first movable pin is arranged on the fixing block, the first pin penetrates through the fixing block and is fixedly connected with the sliding block, and the moving direction of the first pin is consistent with the moving direction of the sliding block, connected with the first pin.

6. The display module pressing jig according to claim 5, wherein: the first pin is sleeved with a first elastic piece which drives the first pin to move in the direction far away from the supporting table, one end of each of two opposite ends of the first elastic piece in the stretching direction abuts against the fixed block, and the other end of each of the two opposite ends of the first elastic piece abuts against the first pin.

7. The display module pressing jig according to claim 1, wherein: the pressing plate is close to one side of the lower die and is provided with a pressing block capable of moving in the vertical direction and a driving piece for driving the pressing block to move in the direction close to the lower die.

8. The display module pressing jig according to claim 7, wherein: still be equipped with on the clamp plate and run through the clamp plate and with briquetting fixed connection's second pin, the second pin is in can follow vertical direction and remove on the clamp plate, just the cover is equipped with on the second pin and orders about the briquetting is to being close to the second elastic component of the direction removal of clamp plate.

9. The display module pressing jig according to claim 1, wherein: the upper die further comprises annular plates fixedly connected with the four guide blocks respectively, the annular plates are located on one side, away from the lower die, of the pressing plate, the annular plates and the four guide blocks can move synchronously in the vertical direction, and avoidance grooves for avoiding the guide blocks are formed in the pressing plate.

10. The display module pressing jig according to claim 9, wherein: still be equipped with on the annular plate and run through the annular plate and with clamp plate fixed connection's third pin, the third pin is in can follow vertical direction and remove on the annular plate, just the cover is equipped with on the third pin and orders about the annular plate is to keeping away from the third elastic component of the direction removal of clamp plate.