CN116512306A

CN116512306A - Can improve accessory equipment for LED display screen production of snatching scope

Info

Publication number: CN116512306A
Application number: CN202310813327.XA
Authority: CN
Inventors: 杨康
Original assignee: Jiangsu New Vision Display Technology Co ltd
Current assignee: Jiangsu New Vision Display Technology Co ltd
Priority date: 2023-07-05
Filing date: 2023-07-05
Publication date: 2023-08-01

Abstract

The invention discloses accessory assembling equipment for producing an LED display screen, which can improve the grabbing range, and particularly relates to the technical field of LED display screen production.

Description

Can improve accessory equipment for LED display screen production of snatching scope

Technical Field

The invention relates to the technical field of LED display screen production, in particular to accessory assembling equipment capable of improving grabbing range for LED display screen production.

Background

The LED display screen is an electronic display screen formed by LED dot matrixes, the display content forms such as characters, animation, pictures and videos of the screen are timely converted by changing the bright and dark traffic light beads, and the display control of the components is carried out through a modularized structure. The display device mainly comprises a display module, a control system and a power supply system. The display module is a screen formed by LED lamp lattices to emit light; the control system is used for realizing the conversion of the content displayed on the screen according to the on-off condition in the control area; the power supply system converts the input voltage and current to meet the requirement of a display screen; the LED screen can realize conversion among different forms of various information presentation modes, can be used indoors and outdoors, and has incomparable advantages of other display screens. The LED lamp has the characteristics of high brightness intensity, small work power consumption, low voltage requirement, small and convenient equipment, long service life, stable impact resistance and strong external interference resistance, and is rapidly developed and widely applied to various fields.

The LED display screen needs to be assembled with accessories during production, the main board assembly is particularly important, clamping pieces with different sizes need to be replaced for clamping assembly due to different main board sizes, only one main board can be clamped for assembly each time, and the assembly efficiency is relatively low.

Disclosure of Invention

The invention aims to provide accessory assembling equipment for producing an LED display screen, which can improve the grabbing range, so as to solve the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: can improve accessory equipment for LED display screen production of snatching scope, including connecting the roof-rack, the top fixed mounting who connects the roof-rack has the straight line jar, the bottom fixed mounting who connects the roof-rack has the protection top cap, the bottom fixed mounting of protection top cap has roll adjustment mechanism, roll adjustment mechanism's both ends slip is equipped with fixture, equal fixed mounting has the clearance subassembly on the fixture, the top mid-mounting of protection top cap has the fixing base, the top fixing clip of fixing base is equipped with the air guide joint, the tip fixed mounting of air guide joint has two air ducts with clearance subassembly cooperation use.

Preferably, the fixture includes the centre gripping frame, the top middle part fixed mounting of centre gripping frame has the slide, the outside bottom integrated into one piece of centre gripping frame has four outer sliding frames that annular array distributes, all slide the card in the outer sliding frame and be equipped with flexible balladeur train, a plurality of in the opposite end of flexible balladeur train extends to the centre gripping frame, the inboard middle part activity of outer sliding frame is equipped with the driving disk that uses with flexible balladeur train cooperation, the inboard fixed mounting of centre gripping frame has the cassette, driving disk movable joint is in the cassette, the lower surface integrated into one piece of driving disk has the plane screw thread protruding, a plurality of the plane screw thread protruding movable joint is in the plane screw thread groove, a plurality of the looks back end of flexible balladeur train all fixed mounting has the bolster, the middle part fixed joint of slide is equipped with the bearing, the middle part fixed card of bearing is equipped with the axis of rotation, the bottom of axis extends to the centre gripping frame and with the top middle part fixed mounting of driving disk.

Preferably, the buffer piece includes the buffering frame, buffering frame fixed mounting is at the tip that corresponds flexible balladeur train, set up flexible groove in the buffering frame, the equal fixed clip in both ends of flexible groove is equipped with spacing snap ring, the slip card is equipped with the buffering axle in the spacing snap ring, the buffering axle is close to flexible balladeur train's tip fixed mounting has the chuck, chuck slip joint is in flexible groove, one side that flexible balladeur train was kept away from to the chuck is equipped with buffer spring, buffer spring's tip supports and corresponds spacing snap ring.

Preferably, an end portion of the buffer shaft, which is far away from the chuck, extends out of the buffer outer frame, and a clamping plate is fixedly mounted on the end portion of the buffer shaft, which is far away from the chuck, through bolts.

Preferably, a non-slip mat is fixedly arranged at the bottom of one side of the clamping plate, which is close to the buffer shaft.

Preferably, the adjustable distance mechanism comprises a horizontal sliding frame, two vertical sliding frames which are symmetrically distributed are vertically arranged in the middle of the horizontal sliding frame, the horizontal sliding frame and the vertical sliding frame are fixedly arranged at the bottom end of a protective top cover, the clamping mechanisms are respectively connected with two end parts of the horizontal sliding frame in a sliding manner through sliding seats in a sliding manner, auxiliary seats are arranged in the vertical sliding frames in a sliding manner, the two auxiliary seats are symmetrically distributed, a first screw rod is rotatably arranged in the middle of the vertical sliding frame, threads of the first screw rod penetrate through the bottoms of the corresponding auxiliary seats, the opposite ends of the first screw rod extend into the horizontal sliding frame, two inner screw barrels are fixedly arranged on opposite sides of sliding seats in the clamping mechanisms, a second screw rod is rotatably arranged in the inner screw barrels, a rotating frame is fixedly arranged in the horizontal sliding frame, driven gears are fixedly arranged at the opposite ends of the first screw rod and the opposite ends of the second screw rod, a plurality of driven gears are rotatably connected with crown gears in the middle of the bottom of the driven gears, an auxiliary shaft is fixedly arranged at the bottom end of the supporting plate, and the supporting plate is fixedly arranged at the bottom end of the middle of the horizontal sliding frame.

Preferably, the bottom of auxiliary shaft fixed mounting has driven worm wheel, driven worm wheel's side end meshing is connected with the drive worm, the drive worm rotates the bottom of installing at the backup pad.

Preferably, a driving motor is fixedly installed at the bottom end of the supporting plate, and the driving end of the driving motor and the end part of the driving worm are coaxially and fixedly installed.

Preferably, the middle part of assisting the seat is all rotated and is installed and drive the axle altogether, the top of driving the axle altogether and the top of axis of rotation are all fixed the cover and are equipped with the sprocket, and a plurality of the outside meshing of sprocket is connected with drive chain, one of them assisting and being equipped with drive and driving axle pivoted actuating mechanism altogether on the seat.

Preferably, the cleaning assembly comprises a cleaning outer frame corresponding to the position of the buffer piece, the cleaning outer frame is fixedly arranged at the top end of the corresponding buffer outer frame, a plurality of cleaning outer frames are respectively arranged at the bottoms of opposite ends of the cleaning outer frames to be of an inclined structure, communication heads are fixedly arranged at the opposite side ends of the cleaning outer frames, communication pipes are fixedly arranged between the adjacent communication heads in the two adjacent cleaning outer frames, a plurality of through holes which are uniformly distributed are formed in the bottom end of the cleaning outer frame, one of the through holes is fixedly arranged at the middle part of the communication pipe, and the end part of the air guide pipe is fixedly arranged at the end part of the corresponding connector.

Compared with the prior art, the invention has the beneficial effects that:

1. through setting up two fixture, can assemble two mainboards of simultaneous holding, effectively improve and snatch the scope, and through the cooperation use adjustable distance mechanism, the distance of two fixture of synchronous regulation carries out the centre gripping equipment to the mainboard of different intervals, further effectively improves and snatches the scope.

2. Through setting up the clearance subassembly, when the centre gripping mainboard was assembled, the clearance was with the air current leading-in both sides air duct to through connector, communicating pipe and intercommunication head, in leading-in a plurality of clearance frames, afterwards, through a plurality of through-holes discharge, carry out synchronous air current formula clearance to the surface of mainboard, promote the packaging efficiency of mainboard.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Figure 1 is a schematic diagram of the structure of the present invention,

figure 2 is a schematic diagram of the structure of the invention after disassembly,

figure 3 is an enlarged view of the invention at a in figure 2,

figure 4 is a schematic view of the structure of the clamping mechanism in the invention,

figure 5 is a schematic view of another structure of the clamping mechanism in the present invention,

figure 6 is a schematic view of the structure of the buffer member in the present invention,

figure 7 is a schematic view of the structural connection of the distance adjusting mechanism and the clamping mechanism in the invention,

figure 8 is an enlarged view of the invention at B in figure 7,

figure 9 is a schematic view of part of the structure of the distance adjusting mechanism in the invention,

figure 10 is an enlarged view of figure 9 at C,

figure 11 is a schematic view of the cleaning assembly of the present invention,

fig. 12 is an enlarged view of the invention at D in fig. 11.

In the figure: 1. connecting a top frame; 2. a linear electric cylinder; 3. a protective top cover; 4. a distance adjusting mechanism; 5. a clamping mechanism; 6. cleaning the assembly; 7. a fixing seat; 71. an air guide joint; 72. an air duct; 51. clamping the outer frame; 52. a slide; 53. an outer slide frame; 54. a telescoping carriage; 55. a drive plate; 551. a clamping seat; 56. a buffer member; 57. a bearing; 58. a rotating shaft; 59. a clamping plate; 591. an anti-slip pad; 561. a buffer outer frame; 562. a telescopic slot; 563. a limiting snap ring; 564. a buffer shaft; 565. a chuck; 566. a buffer spring; 41. a horizontal sliding frame; 42. a longitudinal sliding frame; 43. an auxiliary seat; 44. a first screw; 45. an inner screw cylinder; 451. a second screw; 452. a rotating frame; 46. a driven gear; 461. a crown gear; 462. an auxiliary shaft; 463. a support plate; 47. a driven worm wheel; 471. driving a worm; 472. a driving motor; 48. a common drive shaft; 49. a sprocket; 491. a drive chain; 61. cleaning the outer frame; 62. a communication head; 63. a communicating pipe; 64. a connector; 611. and a through hole.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Examples: as shown in fig. 1-12, the invention provides an accessory assembling device for producing an LED display screen, which can improve the grabbing range, the accessory assembling device comprises a connecting top frame 1, wherein a linear electric cylinder 2 is fixedly arranged at the top end of the connecting top frame 1, the linear electric cylinder 2 is started to drive the whole accessory assembling device to move by arranging the linear electric cylinder 2, the subsequent clamping of an LED display screen main board is facilitated, a protective top cover 3 is fixedly arranged at the bottom end of the connecting top frame 1, a distance adjusting mechanism 4 is fixedly arranged at the bottom end of the protective top cover 3, clamping mechanisms 5 are slidably arranged at two ends of the distance adjusting mechanism 4, cleaning components 6 are fixedly arranged on the clamping mechanisms 5, a fixing seat 7 is fixedly arranged in the middle of the top end of the protective top cover 3, an air guide joint 71 is fixedly clamped at the top of the fixing seat 7, two air guide pipes 72 matched with the cleaning components 6 are fixedly arranged at the end of the air guide joint 71, the end of the air guide joint 71 is connected with the output end of a cleaning air guide pump mechanism, and cleaning air flow is guided into the air guide pipes 72 at two sides by the air guide joint 71.

The fixture 5 includes centre gripping frame 51, centre gripping frame 51's top middle part fixed mounting has slide 52, centre gripping frame 51's outside bottom integrated into one piece has four outer sliding frame 53 that annular array distributes, all slide the card in the outer sliding frame 53 and be equipped with flexible balladeur train 54, flexible balladeur train 54 can be in corresponding outer sliding frame 53 horizontal slip, a plurality of the relative end of flexible balladeur train 54 extends to centre gripping frame 51 in, the inboard middle part activity of outer sliding frame 53 is equipped with the driving disk 55 that cooperates with flexible balladeur train 54 and use, the inboard fixed mounting of centre gripping frame 51 has cassette 551, driving disk 55 movable joint is in cassette 551, and the steady rotation of driving disk 55 in centre gripping frame 51 is equipped with the flat thread protruding, a plurality of the flat thread groove that cooperates the use is seted up to the upper surface of the relative end of flexible balladeur train 54, flat thread protruding movable joint is in the flat thread groove, during the use, through driving disk 55 rotation, cooperation use flat thread protruding rotation, a plurality of flat thread grooves that cooperate to use in the flat thread groove drive the corresponding outer sliding frame 54, the bearing 58 is equipped with in the opposite direction, the bearing 58 is equipped with the fixed rotation of the opposite direction, the bearing 58 is fixed to the top of the centre gripping frame 55 in the centre gripping frame 51, the opposite direction of rotation, the opposite end is equipped with the bearing 58, and the opposite end is fixed to the opposite direction of rotation of the centre gripping frame 55.

The buffer member 56 comprises a buffer outer frame 561, the buffer outer frame 561 is fixedly arranged at the end part corresponding to the telescopic carriage 54, a telescopic groove 562 is formed in the buffer outer frame 561, limiting clamping rings 563 are fixedly clamped at the two end parts of the telescopic groove 562, a buffer shaft 564 is slidably clamped in the limiting clamping rings 563, a chuck 565 is fixedly arranged at the end part, close to the telescopic carriage 54, of the buffer shaft 564, the chuck 565 is slidably clamped in the telescopic groove 562, a buffer spring 566 is arranged at one side, far away from the telescopic carriage 54, of the chuck 565, the end part of the buffer spring 566 props against the corresponding limiting clamping ring 563, and the buffer shaft 564 can slide in the limiting clamping rings 563 to drive the chuck 565 to squeeze the corresponding buffer spring 566; the buffer shaft 564 extends out of the buffer outer frame 561 from one end of the buffer shaft 564 away from the chuck 565, and the clamping plates 59 are fixedly mounted on one end of the buffer shaft 564 away from the chuck 565 through bolts, so that when the plurality of telescopic carriages 54 are controlled to slide horizontally in opposite directions or synchronously in opposite directions, the plurality of buffer pieces 56 and the clamping plates 59 are driven to move synchronously in opposite directions or synchronously in opposite directions, the spacing between the four clamping plates 59 is flexibly adjusted, and the stable clamping of the mainboards with different sizes can be conveniently adapted, so that the follow-up stable assembly can be conveniently realized.

The bottom of one side of the clamping plate 59, which is close to the buffer shaft 564, is fixedly provided with the anti-skid pad 591, and when the main board is clamped by the anti-skid pad 591, the friction between the main board and the clamping plate 59 can be increased, so that the main board is prevented from falling off;

when the main board is clamped, because the sizes of the sides of the main board are different, when the space between the clamping plates 59 is contracted, and when some sides are not contacted with the corresponding clamping plates 59, the clamping plates 59 can be continuously contracted, at this time, the buffer shaft 564 can slide in the limiting clamping ring 563 to drive the corresponding clamping plate 565 to squeeze the corresponding buffer spring 566 until the other sides are contacted with the corresponding clamping plates 59, and the main board is stably clamped between the four clamping plates 59 through the reverse acting force of the buffer spring 566.

Wherein, through setting up two fixture 5, can assemble by two mainboards of simultaneous holding, effectively improve and snatch the scope.

The adjustable distance mechanism 4 comprises a horizontal sliding frame 41, two vertical sliding frames 42 which are symmetrically distributed are vertically arranged in the middle of the horizontal sliding frame 41, the horizontal sliding frame 41 and the vertical sliding frame 42 are fixedly arranged at the bottom end of the protective top cover 3, the clamping mechanisms 5 are respectively and slidably clamped at the two end parts of the horizontal sliding frame 41 through sliding seats 52, the clamping mechanisms 5 can slide at the two end parts of the horizontal sliding frame 41, thereby adjusting the distance between the two clamping mechanisms 5, auxiliary seats 43 are slidably clamped in the vertical sliding frame 42, the two auxiliary seats 43 are in symmetrical distribution structures, the auxiliary seats 43 slide in the corresponding vertical sliding frames 42, first screws 44 are rotatably arranged in the middle of the vertical sliding frame 42, the first screws 44 penetrate through the bottoms of the corresponding auxiliary seats 43 in a threaded manner, the opposite ends of the first screws 44 extend into the horizontal sliding frame 41, the two auxiliary seats 43 are synchronously driven to move relatively or move relatively, the opposite sides of the sliding seats 52 in the horizontal sliding mechanisms 5 are fixedly provided with inner screw barrels 45, the second screws 45 are rotatably arranged relatively to the second screws 451, the second screws 451 are rotatably arranged relatively to the second screws 45 are rotatably arranged relatively to the middle of the auxiliary frames 46, the second screws 451 are rotatably mounted relatively to the second screws 46 are rotatably, the second screws 46 are rotatably connected relatively to the middle of the auxiliary frames 46, the second screws 451 are rotatably mounted relatively to the middle of the second screws 45 are rotatably, the opposite ends of the auxiliary screws 45 are rotatably, and the opposite ends are moved relatively to move relatively to opposite to each other, and opposite sides of the opposite screws 45 are opposite to each other, and are moved. The crown gear 461 is driven to rotate by the rotation of the driving auxiliary shaft 462, so that the plurality of driven gears 46 are driven to rotate synchronously, and the first screw 44 and the second screw 451 are driven to rotate synchronously.

The bottom of the auxiliary shaft 462 is fixedly provided with a driven worm wheel 47, the side end of the driven worm wheel 47 is connected with a driving worm 471 in a meshed manner, and the driving worm 471 is rotatably arranged at the bottom end of the supporting plate 463; the bottom fixed mounting of backup pad 463 has driving motor 472, driving motor's drive end and the coaxial fixed mounting of tip of drive worm 471, during the use, control opens driving motor 472, drives drive worm 471 and rotates to drive driven worm wheel 47 and rotate, and then drive auxiliary shaft 462 and rotate.

The middle part of assisting seat 43 all rotates and installs and drive axle 48 altogether, the top of sharing drive axle 48 and the top of axis of rotation 58 all fixed cover be equipped with sprocket 49, and a plurality of sprocket 49's outside meshing is connected with drive chain 491, one of them be equipped with on assisting seat 43 and drive axle 48 pivoted actuating mechanism altogether, through opening actuating mechanism, drive the rotation of sharing drive axle 48 on one of them assisting seat 43, cooperation use sprocket 49, drive chain 491, can drive the synchronous rotation of axis of rotation 58 in two fixture 5.

The cleaning assembly 6 comprises a cleaning outer frame 61 corresponding to the buffer member 56, the cleaning outer frames 61 are fixedly installed at the top ends of the corresponding buffer outer frames 561, the bottoms of the opposite ends of the cleaning outer frames 61 are all of inclined structures, the opposite side ends of the cleaning outer frames 61 are fixedly provided with communication heads 62, communication pipes 63 are fixedly installed between the adjacent communication heads 62 in the two adjacent cleaning outer frames 61, a plurality of through holes 611 which are uniformly distributed are formed in the bottom ends of the cleaning outer frames 61, one of the through holes 611 is fixedly installed in the middle of the communication pipe 63, the end part of the air duct 72 is fixedly installed with the end part of the corresponding connector 64, when the main board is clamped, air flow for cleaning is led into the air duct 72 at two sides and is led into the cleaning outer frames 61 through the connectors 64, the communication pipes 63 and the communication heads 62, then the air flow is discharged through the plurality of through holes 611, and the surface of the main board is cleaned synchronously, and the assembly efficiency of the main board is improved.

Working principle: when the device is used, the linear electric cylinder 2 is started to drive the whole accessory assembling device to move, the two clamping mechanisms 5 are moved to the positions of main boards to be assembled, at the moment, the distance between the two clamping mechanisms 5 is adjusted according to the distance between the two main boards, the driving motor 472 is controlled to be started, the driving worm 471 is driven to rotate, the driven worm wheel 47 is driven to rotate, the auxiliary shaft 462 is driven to rotate, the crown gear 461 is driven to rotate, the driven gears 46 are driven to synchronously rotate, the first screw 44 and the second screw 451 are synchronously driven to rotate, the first screw 44 and the second screw 451 are matched with the threaded connection of the inner screw 45, the two auxiliary seats 43 are driven to move oppositely, the two clamping mechanisms 5 are driven to move oppositely, or the two auxiliary seats 43 are driven to move oppositely, at the moment, the transmission chain 491 is always in a tight state, and the distance between the two clamping mechanisms 5 is effectively adjusted until the two clamping mechanisms 5 correspond to the positions of the main boards;

subsequently, according to the size of the main board, the spacing between the four clamping plates 59 in the corresponding clamping mechanism 5 is synchronously adjusted, the driving mechanism is started to drive the common driving shaft 48 on one auxiliary seat 43 to rotate, the sprocket 49 and the transmission chain 491 are matched to drive the rotating shaft 58 in the two clamping mechanisms 5 to synchronously rotate, the driving disc 55 is driven to rotate to drive the plane thread to convexly rotate, the plane thread groove is matched to drive the telescopic sliding frames 54 to horizontally and oppositely or reversely synchronously slide in the corresponding outer sliding frames 53, the buffer pieces 56 and the clamping plates 59 are driven to oppositely or reversely synchronously move, and the spacing between the four clamping plates 59 is flexibly adjusted to adapt to stable clamping of the main boards with different sizes;

then, the whole accessory assembling equipment is moved downwards, the main board is placed between the four clamping plates 59 in the corresponding clamping mechanism 5, then, the distance between the clamping plates 59 is contracted, the clamping plates 59 can be continuously contracted when some sides are not contacted with the corresponding clamping plates 59, at the moment, the buffer shaft 564 can slide in the limit clamping ring 563 to drive the corresponding clamping plate 565 to squeeze the corresponding buffer spring 566 until the other sides are contacted with the corresponding clamping plates 59, and the main board is stably clamped between the four clamping plates 59 through the reverse acting force of the buffer spring 566;

by arranging the two clamping mechanisms 5, two mainboards can be clamped simultaneously for assembly, the grabbing range is effectively improved, and by matching with the distance adjusting mechanism 4, the distance between the two clamping mechanisms 5 is synchronously adjusted, the mainboards with different distances are clamped and assembled, and the grabbing range is further effectively improved;

when the clamping main board is assembled, the cleaning air guide pump mechanism is started, cleaning air flows are led into the air guide pipes 72 on two sides through the air guide connectors 71, the cleaning air flows are led into the air guide pipes 72 on two sides and are led into the cleaning outer frames 61 through the connectors 64, the communicating pipes 63 and the communicating heads 62, and then are discharged through the through holes 611, so that synchronous air flow cleaning is carried out on the surface of the main board, and the assembly efficiency of the main board is improved.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Can improve LED display screen production of snatching scope and use accessory equipment, including connecting roof-rack (1), its characterized in that: the utility model discloses a gas guide device for a gas guide device, including connecting roof-rack (1), protection top cap (3) is installed to the top fixed mounting who connects roof-rack (1), the bottom fixed mounting who connects roof-rack (1) has roll adjustment mechanism (4), the both ends slip of roll adjustment mechanism (4) are equipped with fixture (5), all fixed mounting has clearance subassembly (6) on fixture (5), the top middle part fixed mounting of protection top cap (3) has fixing base (7), the top fixing card of fixing base (7) is equipped with gas guide connector (71), the tip fixed mounting that gas guide connector (71) has two air ducts (72) that use with clearance subassembly (6) cooperation.

2. The fitting assembly device for producing an LED display screen capable of improving a grabbing range according to claim 1, wherein: the clamping mechanism (5) comprises a clamping outer frame (51), a sliding seat (52) is fixedly arranged in the middle of the top end of the clamping outer frame (51), four outer sliding frames (53) distributed in an annular array are integrally formed at the bottom of the outer side of the clamping outer frame (51), the outer sliding frames (53) are respectively provided with a telescopic sliding frame (54) in a sliding manner, the opposite ends of a plurality of telescopic sliding frames (54) extend into the clamping outer frames (51), a driving disc (55) matched with the telescopic sliding frame (54) is movably arranged in the middle of the inner side of the outer sliding frame (53), a clamping seat (551) is fixedly arranged on the inner side of the clamping outer frame (51), the driving disc (55) is movably clamped in the clamping seat (551), the lower surface of the driving disc (55) is integrally formed with plane thread protrusions, the upper surfaces of the opposite ends of the telescopic sliding carriages (54) are provided with plane thread grooves matched with the plane thread protrusions, the plane thread protrusions are movably clamped in the plane thread grooves, buffer pieces (56) are fixedly arranged at the opposite ends of the telescopic carriages (54), a bearing (57) is fixedly clamped at the middle part of the sliding seat (52), a rotating shaft (58) is fixedly clamped in the middle of the bearing (57), the bottom end of the rotating shaft (58) extends into the clamping outer frame (51) and is fixedly arranged in the middle of the top end of the driving disc (55).

3. The fitting assembly device for producing an LED display screen capable of improving a grabbing range according to claim 2, wherein: the buffer piece (56) comprises a buffer outer frame (561), the buffer outer frame (561) is fixedly arranged at the end part corresponding to the telescopic carriage (54), a telescopic groove (562) is formed in the buffer outer frame (561), limiting clamping rings (563) are fixedly clamped at the two end parts of the telescopic groove (562), buffer shafts (564) are slidably clamped in the limiting clamping rings (563), a chuck (565) is fixedly arranged at one end part of the buffer shafts (564) close to the telescopic carriage (54), the chuck (565) is slidably clamped in the telescopic groove (562), a buffer spring (566) is arranged at one side, far away from the telescopic carriage (54), of the chuck (565), and the end part of the buffer spring (566) abuts against the corresponding limiting clamping ring (563).

4. The fitting assembly device for producing an LED display screen capable of improving a grabbing range according to claim 3, wherein: the buffer shaft (564) extends out of the buffer outer frame (561) from one end part of the buffer shaft (564) far away from the chuck (565), and a clamping plate (59) is fixedly arranged on one end part of the buffer shaft (564) far away from the chuck (565) through bolts.

5. The accessory assembly device for producing the LED display screen capable of improving grabbing range according to claim 4, wherein the accessory assembly device comprises: the bottom of one side of the clamping plate (59) close to the buffer shaft (564) is fixedly provided with a non-slip pad (591).

6. The fitting assembly device for producing an LED display screen capable of improving a grabbing range according to claim 2, wherein: the adjustable distance mechanism (4) comprises a horizontal sliding frame (41), two vertical sliding frames (42) which are symmetrically distributed are vertically arranged in the middle of the horizontal sliding frame (41), the horizontal sliding frame (41) and the vertical sliding frame (42) are fixedly arranged at the bottom end of a protective top cover (3), the clamping mechanisms (5) are respectively and slidably clamped at two end parts of the horizontal sliding frame (41) through sliding seats (52), auxiliary seats (43) are slidably clamped in the vertical sliding frames (42), the two auxiliary seats (43) are symmetrically distributed, a first screw rod (44) is rotatably arranged in the middle of the vertical sliding frame (42), threads of the first screw rod (44) penetrate through the bottom of the corresponding auxiliary seat (43), opposite ends of the first screw rod (44) extend into the horizontal sliding frame (41), inner screw barrels (45) are fixedly arranged on opposite sides of the sliding seats (52) in the two clamping mechanisms (5), a second screw rod (451) is rotatably arranged in the inner screw barrels (45), opposite ends of the second screw rods (451) are rotatably arranged at opposite ends of the driven screw rods (46), opposite screw rods (46) are rotatably arranged at opposite ends of the driven screw rods (46), an auxiliary shaft (462) is fixedly arranged in the middle of the bottom end of the crown gear (461), a supporting plate (463) is rotatably arranged in the middle of the auxiliary shaft (462), and the supporting plate (463) is fixedly arranged in the middle of the bottom end of the transverse sliding frame (41).

7. The accessory assembly device for producing the LED display screen capable of improving grabbing range according to claim 6, wherein the accessory assembly device comprises: the bottom of auxiliary shaft (462) fixed mounting has driven worm wheel (47), the side end meshing of driven worm wheel (47) is connected with driving worm (471), driving worm (471) rotate the bottom of installing in backup pad (463).

8. The accessory assembly device for producing the LED display screen capable of improving grabbing range according to claim 7, wherein the accessory assembly device comprises: the bottom end of the supporting plate (463) is fixedly provided with a driving motor (472), and the driving end of the driving motor (472) and the end part of the driving worm (471) are coaxially and fixedly arranged.

9. The accessory assembly device for producing the LED display screen capable of improving grabbing range according to claim 6, wherein the accessory assembly device comprises: the middle part of assisting seat (43) all rotates and installs and altogether drives axle (48), the top of altogether driving axle (48) and the top of axis of rotation (58) all fixed cover be equipped with sprocket (49), a plurality of the outside meshing of sprocket (49) is connected with drive chain (491), one of them be equipped with on assisting seat (43) and drive and altogether driving axle (48) pivoted actuating mechanism.

10. The fitting assembly device for producing an LED display screen capable of improving a grabbing range according to claim 3, wherein: the cleaning assembly (6) comprises a cleaning outer frame (61) corresponding to the position of the buffer piece (56), the cleaning outer frame (61) is fixedly installed at the top end of the corresponding buffer outer frame (561), a plurality of cleaning outer frames (61) are respectively provided with an inclined structure at the bottom of the opposite ends, a plurality of communicating heads (62) are fixedly installed at the opposite side ends of the cleaning outer frames (61), communicating pipes (63) are fixedly installed between the adjacent communicating heads (62) in the adjacent two cleaning outer frames (61), a plurality of through holes (611) which are uniformly distributed are formed in the bottom end of the cleaning outer frames (61), connectors (64) are fixedly installed in the middle of one communicating pipe (63), and the end of each air duct (72) is fixedly installed at the end of the corresponding connector (64).