Quick aligning and attaching jig for display screen
The display screen is quickly aligned and fixed by using a worm gear mechanism driven by a motor and an electric push rod, which solves the problem of low adjustment efficiency of traditional fixtures, improves production efficiency and equipment versatility, and reduces costs and material losses.
Patent Information
- Application Number
- CN202521081928.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-29
- Publication Date
- 2026-03-17
- Estimated Expiration
- 2035-05-29
AI Technical Summary
In current display screen production, traditional fixtures suffer from low adjustment efficiency and poor synchronization in multi-model, small-batch production scenarios, failing to meet the requirements of high-speed production lines, resulting in high equipment costs, long downtime, and high material loss rates.
The positioning and pressing mechanism, which uses a worm gear mechanism driven by a motor and an electric push rod, enables rapid alignment and fixation of the display screen. By driving the positioning rod to move longitudinally and laterally with the spring pressure adaptively, automatic adjustment and uniform clamping are achieved.
It enables rapid alignment and fixing of displays of different sizes, reduces manual operation, improves production efficiency, reduces equipment costs and material losses, and meets the production rhythm requirements of high-speed production lines.
Smart Images
Figure CN224005621U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bonding fixture technology, and in particular to a fast alignment bonding fixture for display screens. Background Technology
[0002] Fixtures are specialized tools used in industrial production for positioning, clamping, or assisting in assembly. They ensure that workpieces maintain precise positions during processing, inspection, or assembly. Their core functions are to improve processing accuracy, standardize product specifications, and increase production efficiency. Their structure includes a base, positioning elements, clamping mechanisms, wire components, and adjustment modules. In display screen production, alignment and bonding processes directly affect product yield and assembly efficiency. Traditional bonding fixtures use a fixed structure design, with their clamping area dimensions perfectly matched to a specific display screen model. While such fixtures can guarantee positioning accuracy for a single product specification, they have significant drawbacks in multi-model, small-batch production scenarios. Production lines need to be equipped with dedicated fixtures for different display screen sizes, leading to increased equipment costs and complex warehousing management. Frequent fixture changes require interruptions to the production process, increasing downtime. Furthermore, improper dimensional adjustments in the clamping structure can cause tolerances, resulting in uneven pressure distribution and potential damage to the display screen glass or backlight module, increasing material loss rates.
[0003] Under current technological conditions, the adjustment mechanism using slide rails and bolts allows for adjustment of the clamping range by manually sliding the baffles and tightening the bolts. However, this type of structure relies on manual operation, resulting in low adjustment efficiency and poor synchronization. During the bolt tightening process, the baffles on both sides are prone to shifting due to uneven force application, leading to inaccurate positioning references. The adjustment process requires repeated measurement and calibration, which cannot meet the production rhythm requirements of high-speed production lines. Another solution adopts a modular combination design, adapting the display screen size by replacing positioning modules of different specifications. However, module disassembly and assembly still rely on manual operation, resulting in low adjustment efficiency, increased time and labor costs, and a decline in overall efficiency. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a quick alignment and bonding fixture for displays, which aims to improve the problems of low adjustment efficiency and poor synchronization in the existing technology, which cannot meet the production rhythm requirements of high-speed production lines and will lead to increased time and labor costs.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a display screen quick alignment and bonding fixture, including a worktable, a positioning mechanism installed on the top of the worktable, the positioning mechanism being used to fix the position of the display screen, and a pressing mechanism installed on the top of the positioning mechanism, the pressing mechanism being used to fully bond the display screen and the substrate.
[0006] The positioning mechanism includes a positioning platform, an operation panel is fixedly connected to the top of the positioning platform, a positioning rod 1 is slidably connected to the left side of the positioning platform, a positioning rod 2 is slidably connected to the front side of the positioning platform, a connecting block is fixedly connected to the end of both the positioning rod 1 and the positioning rod 2, and a drive assembly is installed on the bottom left and front sides of the positioning platform.
[0007] As a further description of the above technical solution:
[0008] The drive assembly includes a fixed base, a motor is fixedly connected to the bottom of the fixed base, a worm is fixedly connected to the output end of the motor, a worm wheel is meshed with the top of the worm, and a threaded rod is fixedly connected to the middle of the worm wheel.
[0009] As a further description of the above technical solution:
[0010] The pressing mechanism includes a connecting plate 1, which is installed on the top left side of the workbench. Support rods 1 are slidably connected to the four corners of the top of the connecting plate 1. Fixed platforms are threaded to the top of the four support rods 1. Multiple retractable rods are threaded to the bottom of the connecting plate 1. Springs are provided in the middle of the outer wall of the multiple retractable rods. Pressing base plates are threaded to the bottom of the multiple retractable rods. A power assembly is installed on the top of the fixed platform.
[0011] As a further description of the above technical solution:
[0012] The power assembly includes an electric push rod, a hexagonal bolt is fixedly connected to the middle of the electric push rod, the electric push rod is fixedly connected to the fixed platform, and a locking block is fixedly connected to the bottom of the electric push rod.
[0013] As a further description of the above technical solution:
[0014] Support rods are fixedly connected to the four corners of the fixed base, and the connecting block is threaded to the outside of the threaded rod.
[0015] As a further description of the above technical solution:
[0016] The top of the operation panel is fixedly connected to multiple vertical guide rails, and the left and right sides of the multiple vertical guide rails are slidably connected to horizontal guide rails.
[0017] As a further description of the above technical solution:
[0018] The top end is fixedly connected to a slider, and the bottom of the slider is slidably connected to the top wall of the transverse guide rail.
[0019] As a further description of the above technical solution:
[0020] A hexagonal bolt 2 is fixedly connected to the middle of the outer wall of the locking block, and the locking block is fixedly connected to the connecting plate 1 by the hexagonal bolt 2.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, the operation panel and the positioning platform form a square groove. The left motor drives the worm gear mechanism, which moves the threaded connecting block and the second positioning rod, pushing the module to the rear side of the groove. The rear wall and the second positioning rod work together to apply a longitudinal clamping force to complete the longitudinal fixation. Subsequently, the front motor drives the first positioning rod to move laterally. The first positioning rod and the left wall of the groove work together to apply a lateral clamping force to complete the lateral fixation. Increasing the motor power can then strengthen the locking force. This mechanism does not require manual replacement of fixtures or repeated calibration, and can be adapted to display modules of different sizes to complete quick alignment and fixation.
[0023] 2. In this utility model, the movable slider is adjusted to adjust the horizontal position along the transverse guide rail, and at the same time the height of the transverse guide rail on the longitudinal guide rail is adjusted. The electric push rod drives the connecting plate to move down, compressing the retracting rod and spring. The elastic force generated by the spring compression acts on the fixed pressing base plate. The spring compression amount is dynamically adjusted with the bonding resistance to ensure that the pressing base plate applies uniform and controllable downward pressure to the display module and the substrate. This mechanism uses spring deformation to achieve pressure adaptive matching, avoids overload damage to materials, and simplifies the pressure control structure. Attached Figure Description
[0024] Figure 1 This is a front view of the display screen quick alignment and bonding fixture proposed in this utility model;
[0025] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0026] Figure 3 This is a perspective view of the display screen quick alignment and bonding fixture proposed in this utility model;
[0027] Figure 4 This is an exploded view of the positioning mechanism of the display screen quick alignment and bonding fixture proposed in this utility model.
[0028] Figure 5 for Figure 4 Enlarged view of section B in the middle.
[0029] Legend:
[0030] 1. Workbench; 2. Positioning mechanism; 201. Positioning countertop; 202. Operation panel; 203. Positioning rod one; 204. Positioning rod two; 205. Connecting block; 206. Drive assembly; 2061. Fixed base; 2062. Motor; 2063. Worm gear; 2064. Worm; 2065. Threaded rod; 3. Pressing mechanism; 301. Connecting plate one; 302. Support rod one; 303. Fixed platform; 304. Pressing base plate; 305. Spring; 306. Retraction rod; 307. Power assembly; 3071. Electric push rod; 3072. Hex bolt one; 3073. Locking block; 4. Support rod two; 5. Longitudinal guide rail; 6. Transverse guide rail; 7. Slider; 8. Hex bolt two. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figure 1 , Figure 4 and Figure 5 This utility model provides an embodiment of a quick alignment and bonding fixture for a display screen, comprising a worktable 1, a positioning mechanism 2 mounted on the top of the worktable 1 for fixing the position of the display screen, and a pressing mechanism 3 mounted on the top of the positioning mechanism 2 for ensuring full bonding between the display screen and the substrate; the positioning mechanism 2 includes a positioning platform 201, an operation panel 202 fixedly connected to the top of the positioning platform 201, the operation panel 202 covering the positioning platform 201 to form a square groove for precisely positioning the display screen module, a positioning rod 203 slidably connected to the left side of the positioning platform 201, and a positioning rod 203 slidably connected to the front side of the positioning platform 201. There is a second positioning rod 204, and the ends of the first positioning rod 203 and the second positioning rod 204 are fixedly connected to the connecting blocks 205 for moving and fixing the display module. The bottom left and front sides of the positioning platform 201 are equipped with drive components 206. The drive components 206 include a fixed base 2061, a motor 2062 is fixedly connected to the bottom of the fixed base 2061, a worm gear 2064 is fixedly connected to the output end of the motor 2062, a worm wheel 2063 is meshed with the top of the worm gear 2064, and a threaded rod 2065 is fixedly connected to the middle of the worm wheel 2063. Through the cooperation of a series of mechanisms, the second positioning rod 204 and the first positioning rod 203 can move.
[0033] Specifically, the operation panel 202 covers the surface of the positioning platform 201, and the two form a square groove through the central hollow area. The groove is used to place the display module. After the module is pressed against the left wall of the groove, the left motor 2062 is energized to drive the worm gear 2063 to rotate. The worm 2064 rotates around the axis under the constraint of the fixed base 2061. The internal thread of the connecting block 205 meshes with the worm 2064 and moves axially as the worm 2064 changes direction. The connecting block 205 drives the positioning rod 204 to move back and forth in the groove, pushing the display module to move towards the rear wall of the groove until the rear side of the module contacts the rear wall of the groove. The rear wall of the groove and the second positioning rod 204 together form a longitudinal clamping surface, applying axial pressure to the module to achieve longitudinal fixation. Then, the front motor 2062 starts, driving the first positioning rod 203 to move laterally through the worm gear 2063 and worm 2064. The width of the through hole in the middle of the first positioning rod 203 matches the width of the second positioning rod 204 to ensure that the movement trajectories of the two positioning rods do not interfere. The first positioning rod 203 and the left wall of the groove together form a transverse clamping surface, applying lateral pressure to the module to complete transverse fixation. After positioning, the power of the motor 2062 is increased to increase the pressure on the clamping surface and prevent the module from shifting due to processing vibration.
[0034] Reference Figure 2 and Figure 3 The pressing mechanism 3 includes a connecting plate 301, which is installed on the top left side of the workbench 1. Support rods 302 are slidably connected to the four corners of the top of the connecting plate 301. A fixed platform 303 is threadedly connected to the top of each of the four support rods 302 to support the entire pressing mechanism 3. Multiple retraction rods 306 are threadedly connected to the bottom of the connecting plate 301. Springs 305 are installed in the middle of the outer wall of each retraction rod 306 to convert the force generated by the electric push rod 3071 into downward pressure. A pressing base plate 304 is threadedly connected to the bottom of each retraction rod 306, which is the main structure for the pressing operation. A power assembly 307 is installed on the top of the fixed platform 303. The power assembly 307 includes an electric push rod 3071, with a hexagonal bolt 3072 fixedly connected to the middle of the electric push rod 3071. The electric push rod 3071 is fixedly connected to the fixed platform 303 via the hexagonal bolt 3072. A locking block 3073 is fixedly connected to the bottom of the electric push rod 3071 to fix the electric push rod 3071 and provide power to the entire mechanism. Multiple longitudinal guide rails 5 are fixedly connected to the top of the operation panel 202. Transverse guide rails 6 are slidably connected to the left and right sides of the multiple longitudinal guide rails 5. A slider 7 is fixedly connected to the top of the electric push rod 3071. The bottom of the slider 7 is slidably connected to the top wall of the transverse guide rail 6, so that the pressing mechanism 3 can be adjusted in position according to the processing needs.
[0035] Specifically, after the display module completes its longitudinal and transverse positioning within the square groove formed by the positioning platform 201 and the operation panel 202, the substrate to be bonded is placed above the display module. At this point, the slider 7 is pushed along the linear slide rail of the transverse guide rail 6 to the center position of the substrate. Then, the installation height of the transverse guide rail 6 on the longitudinal guide rail 5 is adjusted to maintain an appropriate distance between the pressing base plate 304 and the substrate surface. After completion, the control switch of the electric push rod 3071 is activated. The piston rod of the electric push rod 3071 extends downwards, pushing the connecting plate 301 to move smoothly downwards along the axis of the four support rods 302. The downward movement of the connecting plate 301 drives the bottom of the mounting plate... Multiple retractable rods 306 descend synchronously. The pressing base plate 304 at the bottom of the retractable rod 306 first contacts the surface of the substrate. As the electric push rod 3071 continues to press down, the limiting boss at the upper end of the retractable rod 306 begins to compress the spring 305. The spring 305 generates a reaction force during the compression process. Due to the reverse support force of the substrate, the pressing base plate 304 stops moving downward. The downward elastic force of the spring 305 is converted into the downward pressure of the pressing base plate 304 on the substrate. This pressure value increases linearly with the increase of the compression of the spring 305. During the pressing process, the compression of the spring 305 can be changed by adjusting the stroke of the electric push rod 3071, thereby controlling the magnitude of the bonding pressure.
[0036] Reference Figure 2 and Figure 5 A hexagonal bolt 28 is fixedly connected to the middle of the outer wall of the locking block 3073, and the locking block 3073 is fixedly connected to the connecting plate 301 through the hexagonal bolt 28; support rods 24 are fixedly connected to the four corners of the fixed base 2061 to maintain the overall stability of the structure; the connecting block 205 is threaded to the outside of the threaded rod 2065 and can perform reciprocating linear motion; the support rod 24 is located between the two fixed bases 2061 and supports the entire drive assembly 206;
[0037] Specifically, the function of the locking block 3073 is to keep the moving parts of the connecting plate 301 and the electric push rod 3071 relatively stationary, so that the elastic force generated by the compression of the spring 305 can be completely converted into the downward pressure of the pressing base plate 304.
[0038] Working principle: Because the operation panel 202 covers the positioning platform 201, and the center of the operation panel 202 is hollowed out, the positioning platform 201 and the operation panel 202 together form a groove. This groove is used to place the display module to be aligned and fixed. The display module to be attached is placed in the square groove formed by the positioning platform 201 and the operation panel 202, and the display module is tightly attached to the leftmost side of the groove. At this time, the motor 2062 on the left side is started and begins to drive the worm gear 2063 to rotate. 064 begins to rotate between the fixed bases 2061. Because the connecting block 205 has internal threads adapted to the worm gear 2064, it reciprocates on the worm gear 2064 as the direction of rotation of the motor 2062 changes. Simultaneously, the connecting block 205 drives the positioning rod 204 to reciprocate within the groove, pushing the display module located therein to perform the same movement, moving it towards the rear of the groove. When it reaches the appropriate position, the rear wall of the groove and the positioning rod 204 together apply a force to the display module. The longitudinal extrusion force secures the display module longitudinally. At this point, the front motor 2062 is activated, driving the positioning rod 203 to reciprocate left and right within the groove using the same principle. Because the positioning rod 203 has a through hole in its center, and its width matches that of the positioning rod 204, the left and right movement of the positioning rod 203 is unaffected. The positioning rod 203 and the left wall of the groove together apply a lateral extrusion force to the display module, securing it laterally. After position adjustment, the power of motor 2062 can be increased to further tighten the display module, preventing irregular movement during processing. This mechanism requires minimal manual operation and the replacement of new fixtures; it achieves size adjustment using only its own mechanism. The adjustment process is linear, adaptable to various display modules of different sizes, and allows for rapid alignment and positioning of the display, saving time and offering strong versatility. It solves the problems of low adjustment efficiency, poor synchronization, inability to meet the production rhythm requirements of high-speed production lines, and increased time and labor costs in existing technologies.
[0039] After the display is aligned and positioned in the positioning platform 201 and the groove in the middle of the positioning platform 201, the substrate to be bonded can be installed. At this time, move the slider 7 to the appropriate position on the horizontal guide rail 6, and adjust the horizontal guide rail 6 to the appropriate height on the vertical guide rail 5. Activate the electric push rod 3071, which drives the connecting plate 301 to slide downwards along the support rod 302. The connecting plate 301 compresses the lower retraction rod 306, which in turn compresses the spring 305. The spring 305, due to compression, simultaneously rises... The spring force generated by the spring 305 acts on the pressing base plate 304 and is converted into downward pressure on the pressing base plate 304 because the pressing base plate 304 is fixed and cannot move. The magnitude of the downward pressure of the pressing base plate 304 is adaptively adjusted by the compression degree of the spring 305 and the shrinking rod 306, so that the display module and the substrate to be bonded are fully pressed into contact. This mechanism uses the spring force to generate downward pressure and can adjust the working position in real time according to the processing needs. The structure is simple and reliable, ensuring the quality of bonding and alignment work.
[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A display screen fast alignment and lamination jig comprising a worktable (1), characterized in that: The top of the workbench (1) is provided with a positioning mechanism (2), which fixes the position of the display screen. The positioning mechanism (2) comprises a positioning sink (201), the top of which is fixedly connected with an operation panel (202), the left side of the positioning sink (201) is slidably connected with a positioning rod one (203), and the front side of the positioning sink (201) is slidably connected with a positioning rod two (204), and the ends of the positioning rod one (203) and the positioning rod two (204) are fixedly connected with a connecting block (205), and the bottom left side and the front side of the positioning sink (201) are provided with a driving assembly (206).
2. The display screen quick alignment and lamination fixture of claim 1, wherein: The driving assembly (206) comprises a fixed base (2061), the bottom of which is fixedly connected with a motor (2062), the output end of the motor (2062) is fixedly connected with a worm (2064), the top of the worm (2064) is meshed with a worm wheel (2063), and the middle of the worm wheel (2063) is fixedly connected with a threaded rod (2065).
3. The display screen quick alignment and lamination fixture of claim 1, wherein: The pressing mechanism (3) comprises a connecting plate one (301), which is installed on the left top of the workbench (1), the top of the connecting plate one (301) is slidably connected with a supporting rod one (302) at four corners, the top of the supporting rod one (302) is threadedly connected with a fixed platform (303), the bottom of the connecting plate one (301) is threadedly connected with a plurality of contraction rods (306), the outer wall of the contraction rod (306) is provided with a spring (305), the bottom of the contraction rod (306) is threadedly connected with a pressing bottom plate (304), and the top of the fixed platform (303) is provided with a power assembly (307).
4. The display screen quick alignment and lamination fixture of claim 3, wherein: The power assembly (307) comprises an electric push rod (3071), the middle of which is fixedly connected with a hexagonal bolt one (3072), the electric push rod (3071) is fixedly connected with the fixed platform (303) through the hexagonal bolt one (3072), and the bottom end of the electric push rod (3071) is fixedly connected with a locking block (3073).
5. The display screen quick alignment and lamination fixture of claim 2, wherein: The four corners of the fixed base (2061) are fixedly connected with a supporting rod two (4), and the connecting block (205) is threadedly connected outside the threaded rod (2065).
6. The display screen quick alignment and lamination fixture of claim 1, wherein: The top of the operation panel (202) is fixedly connected with a plurality of longitudinal guide rails (5), and the left and right sides of the longitudinal guide rail (5) are slidably connected with a transverse guide rail (6).
7. The display screen quick alignment and lamination fixture of claim 4, wherein: The top end of the electric push rod (3071) is fixedly connected with a sliding block (7), and the bottom of the sliding block (7) is slidably connected with the top wall of the transverse guide rail (6).
8. The display screen quick alignment and lamination fixture of claim 4, wherein: The outer wall of the locking block (3073) is fixedly connected with a hexagonal bolt two (8), and the locking block (3073) is fixedly connected with the connecting plate one (301) through the hexagonal bolt two (8).