Automatic assembling device for liquid crystal display screens of mobile phones

Abstract

The invention relates to the technical field of intelligent manufacturing, and discloses an automatic mobile phone liquid crystal display screen assembling device which comprises a feeding mechanism used for providing stable support for the whole device and meanwhile conveying mobile phone shells and display screens to achieve automatic feeding and discharging operation; the screen grabbing mechanism is arranged on the upper side of the feeding mechanism and used for grabbing the display screen in a flexible contact mode and can drive the display screen to conduct overturning and displacement operation after grabbing, so that the display screen is conveniently pushed into a mobile phone shell parallel to the display screen; and the shell grabbing mechanism is arranged on the upper side of the feeding mechanism, the shell grabbing mechanism comprises a clamping assembly and an adjusting assembly, and the clamping assembly is used for clamping a transported mobile phone shell. The stable conveying function of the feeding mechanism is combined with the flexible adjusting capacity of the limiting mechanism, accurate alignment of the mobile phone shell and the display screen is achieved, efficient initial conditions are provided for subsequent assembly operation, and the overall assembly precision and the operation efficiency are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent manufacturing, and specifically to an automatic assembly device for mobile phone liquid crystal displays. Background Art

[0002] With the wide popularity of smart phones, the assembly process of liquid crystal displays and mobile phone cases occupies an important position in production and manufacturing. Currently, the assembly of liquid crystal displays is usually completed by dedicated automated devices, which need to have stable material transportation, precise positioning, and efficient assembly functions to meet the high requirements for accuracy and efficiency in the production process.

[0003] In the prior art, some assembly devices use a single mechanical clamping or vacuum adsorption method to grasp and position the display screen and the mobile phone case. These devices complete the loading and unloading operations of materials through mechanical transmission, and to a certain extent, improve the assembly efficiency. The advantages of these devices are simple structure, stable operation, being able to adapt to the grasping requirements of different specifications of parts, and having high production continuity, which are suitable for small and medium-sized production scenarios.

[0004] However, the prior art has significant deficiencies. For example, existing devices can only grasp the display screen or the mobile phone case through a single clamping or adsorption method, with low clamping accuracy and stability, which easily causes the parts to shift or become loose during transportation or flipping; in addition, during the assembly process, existing devices lack flexible adjustment and precise alignment functions, which easily damage the display screen and the mobile phone case, and the coordination of flipping and docking is weak, unable to achieve high-precision assembly operations, and the overall assembly efficiency and stability still need to be improved. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an automatic assembly device for mobile phone liquid crystal displays, which solves the problems of single clamping method, insufficient flexibility leading to part offset or damage in the prior art, and the defects of poor docking coordination and low assembly accuracy in the prior art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: An automatic assembly device for mobile phone liquid crystal displays, comprising: A feeding mechanism, which is used to provide stable support for the whole device, and at the same time can transport the mobile phone case and the display screen to realize the operation of automatic loading and unloading; A screen-grabbing mechanism, which is arranged on the upper side of the feeding mechanism, and is used to grab the display screen in a flexible contact manner, and can drive the display screen to perform flipping and displacement operations after grabbing, so as to facilitate pushing the display screen into the mobile phone case parallel to it; The shell grasping mechanism is arranged on the upper side of the feeding mechanism. The shell grasping mechanism includes a clamping assembly and an adjusting assembly. The clamping assembly is used for clamping the mobile phone shell during transportation. The adjusting assembly is used to control the lifting and flipping of the clamping assembly, so that the clamped mobile phone shell is in a parallel position with the display screen. The shell grasping mechanism can complete the assembly work of the mobile phone shell and the display screen through cooperation with the telescopic operation of the screen grasping mechanism; The limiting mechanism is arranged inside the feeding mechanism. The limiting mechanism limits the mobile phone shell and the display screen during transportation by adjusting the size of the notch, so as to align the mobile phone shell and the display screen.

[0007] Preferably, the feeding mechanism includes two support plates, and a conveyor belt is arranged between the two support plates.

[0008] Preferably, the screen grasping mechanism includes a support arm, which is fixedly connected to the outside of the screen grasping mechanism. A driving motor is fixedly connected to the upper side of the support arm. The output end of the driving motor is fixedly connected to a hydraulic cylinder. The output end of the hydraulic cylinder is fixedly connected to a first connecting plate. The middle of the first connecting plate is fixedly connected to a damping rod. The other end of the damping rod is fixedly connected to a second connecting plate. A return spring is fixedly connected between the first connecting plate and the second connecting plate. The bottom of the second connecting plate is fixedly connected to a suction cup assembly. A limiting rod is fixedly connected to the upper side of the second connecting plate, and the limiting rod is slidably connected to the middle of the first connecting plate.

[0009] Preferably, the clamping assembly includes a frame body, which is fixedly connected to the upper side of the support plate. Two Y-shaped plates are slidably connected to the middle of the frame body. A rotating rod is rotatably connected to the middle of each of the two Y-shaped plates. A shell is fixedly connected to the adjacent side of the two rotating rods. A first motor is fixedly connected to the upper side of the shell. The output end of the first motor is fixedly connected to a first gear. Two rack plates are slidably connected to the inside of the shell, and both of the two rack plates are meshed with the first gear. The bottom of the rack plate is fixedly connected to a slider, and the other side of the slider is fixedly connected to a clamping plate. Rubber pads are fixedly connected to the adjacent sides of the two clamping plates.

[0010] Preferably, the adjusting assembly includes a dust cover fixedly connected to the upper side of the frame body. Three synchronous pulleys are rotatably connected to the middle of the dust cover, and a synchronous belt is sleeved on the outer circumferences of the three synchronous pulleys. A second motor is fixedly connected inside the dust cover. One of the synchronous pulleys is fixedly connected to the output end of the second motor. Connecting rods are fixedly connected to the middle parts of the other two synchronous belts. The connecting rods are rotatably connected to the middle of the dust cover. A winding wheel is fixedly connected to the outer circumference of the connecting rod. A steel wire rope is fixedly connected to the outside of the winding wheel. The other end of the steel wire rope is fixedly connected to the upper side of the Y-shaped plate. A second rack plate is fixedly connected inside the frame body. A second gear is fixedly connected to the outer circumference of the end of the rotating rod away from the Y-shaped plate. The second gear meshes with the second rack plate.

[0011] Preferably, the limiting mechanism includes two telescopic cylinders respectively fixedly connected to the adjacent sides of the two support plates. A connecting block is fixedly connected to the output end of the telescopic cylinder. A baffle is rotatably connected to the other side of the connecting block. A convex block is rotatably connected to the other side of the baffle. A limiting block is fixedly connected to the other side of the convex block. The limiting block is slidably connected to the middle of the support plate.

[0012] Preferably, a disc is fixedly connected to the top end of the limiting rod, and the disc is in contact with the first connecting plate.

[0013] Preferably, rollers are rotatably connected to the opposite sides of the two Y-shaped plates, and the rollers are in contact with the inside of the frame body.

[0014] Preferably, a plurality of support rods are fixedly connected to the bottom of the support plate, and inclined plates are fixedly connected to the outside of the support rods.

[0015] Preferably, a U-shaped cover is fixedly connected to the upper side of the housing, and the U-shaped cover is in contact with the bottom of the dust cover.

[0016] The present invention provides an automatic assembly device for a mobile phone liquid crystal display screen, which has the following beneficial effects: 1. Through the stable transportation function of the feeding mechanism combined with the flexible adjustment ability of the limiting mechanism, the present invention realizes the precise alignment of the mobile phone case and the display screen, provides efficient initial conditions for subsequent assembly operations, and significantly improves the overall assembly accuracy and operation efficiency.

[0017] 2. Through the cooperation of the screen-grabbing mechanism with flexible adsorption and the case-grabbing mechanism, the present invention can effectively avoid damage to the display screen and the mobile phone case, and at the same time ensure the precise flipping and docking of the two during the assembly process, improving the reliability and stability of the device, while improving the automation level and reducing the complexity and labor intensity of manual operations. Description of the Drawings

[0018] Figure 1 Is a perspective view of the present invention; Figure 2 Is a schematic structural view of the screen capture mechanism of the present invention; Figure 3 Is a schematic structural view of the shell grasping mechanism of the present invention; Figure 4 Is a schematic structural view of the Y-shaped plate of the present invention; Figure 5 Is a schematic structural view of the clamping assembly of the present invention; Figure 6 Is a schematic structural view of the adjustment assembly of the present invention; Figure 7 Is a schematic structural view of the rotating rod of the present invention; Figure 8 Is a schematic structural view of the limiting mechanism of the present invention.

[0019] Among them, 10, feeding mechanism; 101, support plate; 102, conveyor belt; 20, screen capture mechanism; 201, support arm; 202, hydraulic cylinder; 203, connecting plate one; 204, return spring; 205, connecting plate two; 206, damping rod; 207, suction cup assembly; 208, limiting rod; 209, driving motor; 30, shell grasping mechanism; 31, clamping assembly; 3101, frame; 3102, Y-shaped plate; 3103, roller; 3104, shell; 3105, motor one; 3106, gear one; 3107, rack plate one; 3108, slider; 3109, clamping plate; 3110, rubber pad; 3111, rotating rod; 32, adjustment assembly; 3201, dust cover; 3202, synchronous pulley; 3203, synchronous belt; 3204, motor two; 3205, connecting rod; 3206, winding wheel; 3207, steel wire rope; 3208, rack plate two; 3209, gear two; 40, limiting mechanism; 401, telescopic cylinder; 402, connecting block; 403, baffle; 404, convex block; 405, limiting block. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the specification of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to the attached Figure 1 - attached Figure 8 , the embodiments of the present invention provide an automatic assembly device for a mobile phone liquid crystal display screen, including: The feeding mechanism 10 is used to provide a stable support for the whole device, and can transport the mobile phone case and the display screen to realize the automatic loading and unloading operation. The feeding mechanism 10 reduces manual intervention through stable and continuous operation, and improves the accuracy of material transportation and the overall reliability of the device; The screen grabbing mechanism 20 is arranged on the upper side of the feeding mechanism 10 and is used to grab the display screen in a flexible contact manner. After grabbing, the display screen can be driven to perform flipping and displacement operations, so as to facilitate pushing the display screen into a mobile phone case parallel to the display screen. The screen grabbing mechanism 20 effectively prevents damage to the display screen by flexible adsorption. At the same time, its precise flipping and displacement functions simplify the assembly process and improve the applicability and stability of the device. The shell grabbing mechanism 30 is arranged on the upper side of the feeding mechanism 10. The shell grabbing mechanism 30 includes a clamping component 31 and an adjusting component 32. The clamping component 31 is used to clamp the mobile phone shell for transportation. The adjusting component 32 is used to control the lifting and flipping of the clamping component 31 so that the clamped mobile phone shell is in a parallel position with the display screen. The shell grabbing mechanism 30 can complete the assembly of the mobile phone shell and the display screen by cooperating with the telescopic operation of the screen grabbing mechanism 20. The shell grabbing mechanism 30 realizes stable clamping and precise flipping of the mobile phone shell through the synergistic effect of the clamping component 31 and the adjusting component 32, thereby ensuring the docking accuracy of various components during the assembly process and further improving the automation level of the device; The limiting mechanism 40 is arranged on the inner side of the feeding mechanism 10. The limiting mechanism 40 limits the transported mobile phone case and display screen by adjusting the size of the gap, so as to align the mobile phone case and the display screen. The limiting mechanism 40 ensures the accurate positioning of the material by flexibly adjusting the size of the limiting space, thereby improving the overall assembly accuracy and operation stability of the device.

[0022] Please refer to the attached Figure 1 In a preferred embodiment of the present invention, the feeding mechanism 10 includes two support plates 101, and a conveyor belt 102 is arranged between the two support plates 101. The support plates 101 are used to provide stable support for the device, and the conveyor belt 102 is used to transport the mobile phone case and the display screen. The conveyor belt 102 is a prior art and will not be described in detail in this article.

[0023] Please refer to the attached Figure 2, in a preferred embodiment of the present invention, the screen capture mechanism 20 includes a support arm 201. The support arm 201 is fixedly connected to the outside of the screen capture mechanism 20. A driving motor 209 is fixedly connected to the upper side of the support arm 201. The output end of the driving motor 209 is fixedly connected to a hydraulic cylinder 202. The output end of the hydraulic cylinder 202 is fixedly connected to a first connecting plate 203. A damping rod 206 is fixedly connected to the middle of the first connecting plate 203. The other end of the damping rod 206 is fixedly connected to a second connecting plate 205. A return spring 204 is fixedly connected between the first connecting plate 203 and the second connecting plate 205. A suction cup assembly 207 is fixedly connected to the bottom of the second connecting plate 205. A limiting rod 208 is fixedly connected to the upper side of the second connecting plate 205. The limiting rod 208 is slidably connected to the middle of the first connecting plate 203. Among them, the support arm 201 is used to provide stable support for the screen capture mechanism 20. The hydraulic cylinder 202 is used to move the first connecting plate 203 downward, so that the suction cup assembly 207 contacts the display screen. When the suction cup assembly 207 is squeezed, the second connecting plate 205 can squeeze the return spring 204 and the damping rod 206, so as to move upward, and ensure the close contact between the suction cup assembly 207 and the display screen under the elastic force of the return spring 204 and the damping rod 206, so as to improve the clamping effect of the display screen. After the clamping is completed, the first connecting plate 203 is driven to move upward by the hydraulic cylinder 202, and then the hydraulic cylinder 202 can be flipped by the driving motor 209, so that the display screen rises and flips towards the housing grabbing mechanism 30, which is convenient for subsequent assembly.

[0024] Please refer to the attached Figure 3 - attached Figure 5 , in a preferred embodiment of the present invention, the clamping assembly 31 includes a frame body 3101. The frame body 3101 is fixedly connected to the upper side of the support plate 101. Two Y-shaped plates 3102 are slidably connected to the middle of the frame body 3101. A rotating rod 3111 is rotatably connected to the middle of each of the two Y-shaped plates 3102. A housing 3104 is fixedly connected to the side of the two rotating rods 3111 close to each other. A first motor 3105 is fixedly connected to the upper side of the housing 3104. The output end of the first motor 3105 is fixedly connected to a first gear 3106. Two rack plates 3107 are slidably connected to the inside of the housing 3104. Both of the two rack plates 3107 are engaged with the first gear 3106. A slider 3108 is fixedly connected to the bottom of the rack plate 3107. A clamping plate 3109 is fixedly connected to the other side of the slider 3108. Rubber pads 3110 are fixedly connected to the side of the two clamping plates 3109 close to each other. Among them, the first motor 3105 is used to rotate the first gear 3106. When the first gear 3106 rotates, it can drive the two rack plates 3107 to move, so that the two clamping plates 3109 drive the two rubber pads 3110 to approach each other, so as to clamp the mobile phone case that has moved to the bottom of the housing 3104.

[0025] Please refer to the attached Figure 6and appendix Figure 7 In a preferred embodiment of the present invention, the adjusting assembly 32 includes a dust cover 3201 fixedly connected to the upper side of the frame body 3101. Three synchronous pulleys 3202 are rotatably connected to the middle of the dust cover 3201. A synchronous belt 3203 is sleeved on the outer circumferences of the three synchronous pulleys 3202. A second motor 3204 is fixedly connected to the inside of the dust cover 3201. One of the synchronous pulleys 3202 is fixedly connected to the output end of the second motor 3204. Connecting rods 3205 are fixedly connected to the middle parts of the other two synchronous belts 3203. The connecting rods 3205 are rotatably connected to the middle of the dust cover 3201. A winding wheel 3206 is fixedly connected to the outer circumference of the connecting rod 3205. A steel wire rope 3207 is fixedly connected to the outside of the winding wheel 3206. The other end of the steel wire rope 3207 is fixedly connected to the upper side of the Y-shaped plate 3102. A second rack plate 3208 is fixedly connected to the inside of the frame body 3101. A second gear 3209 is fixedly connected to the outer circumference of the end of the rotating rod 3111 away from the Y-shaped plate 3102. The second gear 3209 meshes with the second rack plate 3208. By driving the second motor 3204, one of the synchronous pulleys 3202 can be driven to rotate. At this time, under the action of the synchronous belt 3203, the three synchronous pulleys 3202 can rotate together. At this time, through the connecting rod 3205, the winding wheel 3206 can wind the steel wire rope 3207, thereby driving the Y-shaped plate 3102 to rise. While rising, through the contact between the second gear 3209 and the second rack plate 3208, the housing 3104 can be rotated, thereby completing the rising and flipping work of the housing 3104. At this time, the mobile phone case and the display screen can be aligned. By driving the hydraulic cylinder 202, the display screen and the mobile phone case can be assembled, improving the assembly speed and reducing the labor intensity of employees at the same time. By driving the second motor 3204 to rotate the synchronous pulley 3202 in the reverse direction and under the influence of the gravity of the clamping assembly 31, the Y-shaped plate 3102 moves downward, so that the clamping device remains with the clamping plate 3109 vertically downward after flipping to perform the next clamping work.

[0026] Please refer to the appendix Figure 8In a preferred embodiment of the present invention, the limiting mechanism 40 includes two telescopic cylinders 401, which are respectively fixedly connected to the sides of the two support plates 101, and the output end of the telescopic cylinder 401 is fixedly connected to a connecting block 402, and the other side of the connecting block 402 is rotatably connected to a baffle 403, and the other side of the baffle 403 is rotatably connected to a protrusion 404, and the other side of the protrusion 404 is fixedly connected to a limiting block 405, and the limiting block 405 is slidably connected to the middle part of the support plate 101, wherein the telescopic cylinder 401 is used to drive the limiting mechanism 40 to move as a whole, and when driving the telescopic cylinder 401, the protrusion 404 and the limiting block 405 can be driven to move under the action of the baffle 403, thereby adjusting the inclination angle of the baffle 403, so as to straighten the transported mobile phone case and display screen, provide preliminary positioning for assembly, and further improve the assembly efficiency.

[0027] Please refer to the attached Figure 2 In a preferred embodiment of the present invention, a disc is fixedly connected to the top of the limiting rod 208, and the disc is in contact with the connecting plate 1 203. The connecting plate 205 can be limited by the disc, thereby preventing the connecting plate 205 and the connecting plate 1 203 from separating, thereby improving the stability of the screen capture mechanism 20.

[0028] Please refer to the attached Figure 4 In a preferred embodiment of the present invention, the two Y-shaped plates 3102 are rotatably connected to opposite sides with rollers 3103, and the rollers 3103 are in contact with the inside of the frame 3101. The rollers 3103 can enable the Y-shaped plates 3102 to move vertically in the frame 3101 more smoothly and reduce friction during movement.

[0029] Please refer to the attached Figure 1 and attached Figure 8 In a preferred embodiment of the present invention, a plurality of support rods are fixedly connected to the bottom of the support plate 101, and an inclined plate is fixedly connected to the outer side of the support rods. The cooperation of the support rods and the inclined plates can further improve the stability of the support of the support plate 101 and reduce the shaking of the device.

[0030] Please refer to the attached Figure 3 In a preferred embodiment of the present invention, a U-shaped cover is fixedly connected to the upper side of the shell 3104, and the U-shaped cover is in contact with the bottom of the dust cover 3201. The U-shaped cover can prevent the motor 3105 from contacting the dust cover 3201, thereby avoiding damage to the motor 3105.

[0031] Working principle: When in use, the mobile phone case and the display screen are placed on the conveyor belt 102 successively. At this time, the conveyor belt 102 can transport the mobile phone case and the display screen. Before transportation, the distance between the connecting blocks 402 is adjusted by driving the telescopic cylinder 401 to extend and retract. When the two connecting blocks 402 approach each other, the inclination amplitude of the baffle 403 can be increased, and at the same time, the convex block 404 pulls the limiting block 405 to move, thereby providing a notch for the mobile phone case and the display screen, enabling them to maintain a horizontal or vertical form. Among them, when the display screen is transported to the bottom of the screen grabbing mechanism 20, the suction cup assembly 207 is driven to move downward by the hydraulic cylinder 202. During its movement, it will contact the display screen, and when the suction cup assembly 207 is squeezed, the return spring 204 and the damping rod 206 can be compressed. At this time, it can prevent the display screen from being crushed by strong extrusion. At the same time, the elastic force provided by the return spring 204 and the damping rod 206 can keep the bottom of the suction cup assembly 207 in contact with the display screen to improve the clamping effect. At this time, the suction cup assembly 207 is reset by driving the hydraulic cylinder 202 to contract, and then the suction cup assembly 207 is flipped by the driving motor 209, so that the display screen faces the shell grabbing mechanism 30. While the screen grabbing mechanism 20 is working, the shell grabbing mechanism 30 is working. The driving motor 3105 drives the gear 3106 to drive the rack plate 3107, the slider 3108 and the clamping plate 3109 to move, thereby completing the clamping operation of the mobile phone case. At this time, the driving motor 3204 is driven and the synchronous belt 3203 makes the synchronous wheel 3202 rotate. While it is rotating, the winding wheel 3206 can wind the steel wire rope 3207, so that the clamped mobile phone case rises. During the rising process, the gear 3209 and the rack plate 3208 come into contact and mesh, thereby driving the housing 3104 to flip. At this time, the clamped mobile phone case and the display screen are in a parallel position, and the display screen can be inserted into the mobile phone case by driving the hydraulic cylinder 202.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic assembly device for a mobile phone liquid crystal display screen, characterized in that, Including: A feeding mechanism (10) for providing stable support for the whole device, and at the same time capable of transporting the mobile phone case and the display screen to realize the operation of automatic loading and unloading. A screen-grabbing mechanism (20) arranged on the upper side of the feeding mechanism (10), which is used to grab the display screen in a flexible contact manner, and can drive the display screen to flip and displace after grabbing, so as to push the display screen into the mobile phone case parallel to it. A case-grabbing mechanism (30) arranged on the upper side of the feeding mechanism (10), the case-grabbing mechanism (30) includes a clamping component (31) and an adjusting component (32), the clamping component (31) is used to clamp the transported mobile phone case, and the adjusting component (32) is used to control the lifting and flipping of the clamping component (31) to make the clamped mobile phone case parallel to the display screen. The case-grabbing mechanism (30) can complete the assembly work of the mobile phone case and the display screen by cooperating with the telescopic operation of the screen-grabbing mechanism (20). A limiting mechanism (40) arranged inside the feeding mechanism (10), and the limiting mechanism (40) limits the transported mobile phone case and display screen by adjusting the size of the notch, so as to align the mobile phone case and the display screen.

2. The automatic assembly device for a mobile phone liquid crystal display screen according to claim 1, wherein, The feeding mechanism (10) includes two support plates (101), and a conveyor belt (102) is arranged between the two support plates (101).

3. The automatic assembly device for a mobile phone liquid crystal display screen according to claim 2, characterized in that, The screen-grabbing mechanism (20) includes a support arm (201), the support arm (201) is fixedly connected to the outside of the screen-grabbing mechanism (20), a driving motor (209) is fixedly connected to the upper side of the support arm (201), the output end of the driving motor (209) is fixedly connected to a hydraulic cylinder (202), the output end of the hydraulic cylinder (202) is fixedly connected to a first connecting plate (203), a damping rod (206) is fixedly connected to the middle of the first connecting plate (203), the other end of the damping rod (206) is fixedly connected to a second connecting plate (205), a return spring (204) is fixedly connected between the first connecting plate (203) and the second connecting plate (205), a suction cup assembly (207) is fixedly connected to the bottom of the second connecting plate (205), a limiting rod (208) is fixedly connected to the upper side of the second connecting plate (205), and the limiting rod (208) is slidably connected to the middle of the first connecting plate (203).

4. The automatic assembly device for a mobile phone liquid crystal display screen according to claim 2, characterized in that, The clamping assembly (31) includes a frame body (3101). The frame body (3101) is fixedly connected to the upper side of the support plate (101). Two Y-shaped plates (3102) are slidably connected to the middle of the frame body (3101). A rotating rod (3111) is rotatably connected to the middle of each of the two Y-shaped plates (3102). A housing (3104) is fixedly connected to the adjacent sides of the two rotating rods (3111). A first motor (3105) is fixedly connected to the upper side of the housing (3104). A first gear (3106) is fixedly connected to the output end of the first motor (3105). Two first rack plates (3107) are slidably connected to the inside of the housing (3104). Both of the two first rack plates (3107) are engaged with the first gear (3106). A slider (3108) is fixedly connected to the bottom of the first rack plate (3107). A clamping plate (3109) is fixedly connected to the other side of the slider (3108). Rubber pads (3110) are fixedly connected to the adjacent sides of the two clamping plates (3109).

5. The automatic assembly device for a mobile phone liquid crystal display screen according to claim 4, characterized in that, The adjusting assembly (32) includes a dust-proof cover (3201). The dust-proof cover (3201) is fixedly connected to the upper side of the frame body (3101). Three synchronous pulleys (3202) are rotatably connected to the middle of the dust-proof cover (3201). A synchronous belt (3203) is sleeved on the outer circumferences of the three synchronous pulleys (3202). A second motor (3204) is fixedly connected to the inside of the dust-proof cover (3201). One of the synchronous pulleys (3202) is fixedly connected to the output end of the second motor (3204). Connecting rods (3205) are fixedly connected to the middle of the other two synchronous belts (3203). The connecting rods (3205) are rotatably connected to the middle of the dust-proof cover (3201). A winding wheel (3206) is fixedly connected to the outer circumference of the connecting rod (3205). A steel wire rope (3207) is fixedly connected to the outside of the winding wheel (3206). The other end of the steel wire rope (3207) is fixedly connected to the upper side of the Y-shaped plate (3102). A second rack plate (3208) is fixedly connected to the inside of the frame body (3101). A second gear (3209) is fixedly connected to the outer circumference of the end of the rotating rod (3111) away from the Y-shaped plate (3102). The second gear (3209) is engaged with the second rack plate (3208).

6. The automatic assembly device for a mobile phone liquid crystal display screen according to claim 2, wherein The limiting mechanism (40) includes two telescopic cylinders (401). The two telescopic cylinders (401) are respectively fixedly connected to the adjacent sides of the two support plates (101). A connecting block (402) is fixedly connected to the output end of the telescopic cylinder (401). A baffle (403) is rotatably connected to the other side of the connecting block (402). A convex block (404) is rotatably connected to the other side of the baffle (403). A limiting block (405) is fixedly connected to the other side of the convex block (404). The limiting block (405) is slidably connected to the middle of the support plate (101).

7. An automatic assembling device for a mobile phone liquid crystal display screen according to claim 3, characterized in that, The top end of the limiting rod (208) is fixedly connected with a disc, and the disc is in contact with the first connecting plate (203).

8. An automatic assembly device for a mobile phone liquid crystal display screen according to claim 1, characterized in that, Rollers (3103) are rotatably connected to the opposite sides of the two Y-shaped plates (3102), and the rollers (3103) are in contact with the inside of the frame body (3101).

9. The automatic assembling device for a mobile phone liquid crystal display screen according to claim 2, wherein, A plurality of support rods are fixedly connected to the bottom of the support plate (101), and inclined plates are fixedly connected to the outer sides of the support rods.

10. The automatic assembling device for a mobile phone liquid crystal display screen according to claim 5, characterized in that, A U-shaped cover is fixedly connected to the upper side of the housing (3104), and the U-shaped cover is in contact with the bottom of the dust-proof cover (3201).

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