CN211164442U

CN211164442U - Line ball door assembly line

Info

Publication number: CN211164442U
Application number: CN201921430147.9U
Authority: CN
Inventors: 孙万杰; 曹国涛; 于旭彤; 唐志明
Original assignee: Shenyang Shengxier Technology Development Co ltd
Current assignee: Shenyang Shengxier Technology Development Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-08-04
Anticipated expiration: 2029-08-30

Abstract

The utility model belongs to the technical field of the assembly processing production of door plant, in particular to line ball door assembly line. The automatic feeding and discharging device comprises a sucker type automatic feeding machine, a pneumatic press I, a turnover machine, a pneumatic press II and a sucker type automatic discharging machine which are sequentially arranged along the conveying direction of a conveying line, wherein the sucker type automatic feeding machine is used for conveying door plates to be pressed to the conveying line, and the door plates to be pressed are conveyed to each station through the conveying line; the pneumatic press I is used for pressing a line on one side surface of the door plate to be pressed, which is conveyed to the first press-mounting station; the turnover machine is used for turning over the door plate conveyed to the turnover station by 180 degrees; the pneumatic press II is used for pressing the other side face of the door plate conveyed to the second press-fitting station; and the sucking disc type automatic blanking machine is used for taking down the door plate which is pressed with the line from the conveying line. The utility model uses the automatic equipment to carry and turn over, thus reducing the physical strength of workers; meanwhile, workers work in different working procedures according to beats, so that the labor efficiency is greatly improved, and the labor cost is saved.

Description

Line ball door assembly line

Technical Field

The utility model belongs to the technical field of the assembly processing production of door plant, in particular to line ball door assembly line.

Background

The assembly production process of the line pressing door generally needs to pass through the following steps, firstly, manual gluing is carried out, the door face where lines are placed is covered, then the door plate and the lines are placed in the press to be pressed, then the door plate is manually reversed, gluing and the actions of the lines are repeated, and the door plate and the lines are placed in the press again to be pressed. The above-mentioned work all links up each other, and the next work can only be carried out to the work before accomplishing, and efficiency is very low to the volume and the weight of door are all great, and the workman is in upset and handling, and intensity of labour is great, wastes time and energy in the whole assembly course of working, is not fit for mass production.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model aims to provide a line pressing door assembly production line which uses automatic equipment for carrying and overturning and reduces the physical strength of workers; meanwhile, workers work in different working procedures according to beats, so that the labor efficiency is greatly improved, and the labor cost is saved.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an assembly production line for line pressing doors comprises a suction disc type automatic feeding machine, a pneumatic press I, a turnover machine, a pneumatic press II and a suction disc type automatic blanking machine which are sequentially arranged along the conveying direction of a conveying line, wherein,

the sucking disc type automatic feeding machine is used for conveying the door plates to be pressed to a conveying line, and the door plates to be pressed are conveyed to each station through the conveying line;

the pneumatic press I is used for pressing a line on one side surface of the door plate to be pressed, which is conveyed to the first press-mounting station;

the turnover machine is used for turning over the door plate conveyed to the turnover station by 180 degrees;

the pneumatic press II is used for pressing the other side face of the door plate conveyed to the second press-fitting station;

the sucking disc type automatic blanking machine is used for feeding and discharging the door plate which is pressed with the line from the conveying line.

The pneumatic press I and the pneumatic press II are identical in structure and respectively comprise a pressing air cylinder, four synchronous gear rack structures, a frame and a pressing plate, wherein the frame stretches over the conveying line, the four pressing air cylinders are arranged on the frame, the pressing plate is connected to the output ends of the four pressing air cylinders, and the synchronous gear rack structures are connected between the pressing plate and the frame and used for adjusting the horizontal position of the pressing plate.

The synchronous gear rack structure comprises two transverse balance racks, two transverse balance gears, two longitudinal balance racks, two longitudinal balance gears and two shafts, wherein the transverse balance racks and the shafts are arranged in a # -shape, the transverse balance racks can be connected with the frame in a relatively sliding mode, the shafts are provided with the two transverse balance gears and the two longitudinal balance gears located between the two transverse balance gears, the two transverse balance gears are respectively meshed with the two transverse balance racks, the pressing plate is connected with the four longitudinal balance racks, and the four longitudinal balance racks are respectively meshed with the four longitudinal balance gears.

The turnover machine comprises a large reverse rotation chain wheel, a clamping driving mechanism, a movable frame, a clamping plate, a linear guide rail, a pinion, a large gear, a fixed plate, a turnover rack, a turnover machine supporting frame, a small chain wheel and a turnover motor, wherein the linear guide rail and the turnover rack are arranged on the turnover machine supporting frame along the direction perpendicular to the conveying line, the fixed plate is in sliding connection with the linear guide rail, the turnover motor is arranged on the fixed plate, the small chain wheel and the pinion are sequentially arranged on an output shaft, the large reverse rotation chain wheel is arranged on the fixed plate and is in transmission connection with the small chain wheel through a chain, the large gear is arranged on the fixed plate, and two sides of the large gear are respectively meshed; one end of the movable frame is fixed on the large reverse rotation chain wheel, two clamping driving mechanisms are symmetrically arranged on the movable frame, the two clamping driving mechanisms are respectively connected with two corresponding clamping plates, and the two clamping plates can be driven to move towards opposite directions, so that the door plate can be clamped and loosened.

The clamping driving mechanism comprises a clamping cylinder and a crank-link mechanism, the crank-link mechanism comprises a first short link, a first crank, a long link, a second short link and a second crank, the first short link and the second short link are both vertically and fixedly connected with the clamping plate, the first crank and the second crank are both of L-shaped structures, the tops of the first crank and the second crank are both hinged with the movable frame, one end of the first crank is hinged with the output end of the clamping cylinder, the other end of the first crank is hinged with the first short link, one end of the second crank is hinged with the first crank through the long link, the long link is parallel to the clamping plate, and the other end of the second crank is hinged with the second short link.

The length of the turnover rack is larger than the width of the door panel.

The two sets of the turnover machines are respectively used for clamping two ends of the door panel and realizing the turnover of the door panel under the synergistic effect.

The sucking disc type automatic feeding machine and the sucking disc type automatic blanking machine are identical in structure and respectively comprise a transverse servo motor, a transverse linear guide rail, a transverse gear rack structure, a longitudinal servo motor, a longitudinal gear rack structure, a vacuum sucking disc, a vacuum generator, a longitudinal linear guide rail, a feeding and discharging support frame and a transverse moving frame, wherein the feeding and discharging support frame is of a gantry structure, the transverse linear guide rail is arranged at the top of the feeding and discharging support frame, the transverse moving frame is connected with the transverse linear guide rail in a sliding mode, the transverse gear rack structure is arranged between the transverse moving frame and the feeding and discharging support frame, the transverse servo motor is arranged on the transverse moving frame, and the output end of the transverse servo motor is connected with; the longitudinal linear guide rail is arranged on the transverse moving frame, the longitudinal gear rack structure is in sliding connection with the longitudinal linear guide rail, the longitudinal servo motor is arranged on the transverse moving frame, the output end of the longitudinal servo motor is connected with the longitudinal gear rack structure, the vacuum chuck is arranged at the output end of the longitudinal gear rack structure, and the vacuum generator is arranged on the vacuum chuck.

The vacuum sucker comprises a sucker body, a check valve and a silica gel sucker, wherein a vacuum cavity is arranged in the sucker body, a vacuum generator mounting hole is formed in the top of the sucker body, a plurality of sucker mounting holes are formed in the bottom of the sucker body, a check valve is arranged in each sucker mounting hole, and a silica gel sucker is arranged on the outer side of each check valve; the check valve includes check valve plate, screw rod, spring and silica gel sucking disc, and wherein the check valve plate is located the vacuum cavity, and be connected with the screw rod, the cover is equipped with the spring on the screw rod, the both ends of spring make with the shaft shoulder butt of check valve plate and screw rod tip respectively the check valve plate is sealed the sucking disc mounting hole.

The conveying lines are of sectional structures and are respectively arranged below each station and between two adjacent stations, and the conveying lines positioned below the suction disc type automatic feeding machine and the suction disc type automatic blanking machine are respectively a feeding unpowered roller conveyor and a blanking unpowered roller conveyor.

The utility model has the advantages and beneficial effects that: the utility model discloses a production line uses automation equipment to carry and overturn, reduces workman's physical power. Meanwhile, the production line type production of the line pressing door is realized, the production beats of all the working procedures are approximately equal, and the number of products produced in unit time is much larger than that produced by the traditional single-piece production, so that the production efficiency is greatly improved, and the labor cost is saved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic structural view of the sucking disc type automatic feeding machine of the present invention;

FIG. 4 is a left side view of FIG. 3;

FIG. 5 is a schematic structural view of a vacuum chuck of the present invention;

FIG. 6 is a schematic structural view of the pneumatic press of the present invention;

FIG. 7 is a top view of FIG. 6;

FIG. 8 is a schematic structural view of the upender of the present invention;

FIG. 9 is a side view of FIG. 8;

FIG. 10 is a schematic structural view of a crank link mechanism of the upender of the present invention;

fig. 11 is an appearance structure diagram of the line pressing door assembling line of the utility model.

In the figure: 1-feeding unpowered roller conveyor; 2-a sucker type automatic feeding machine; 21-a transverse servo motor; 22-transverse linear guide; 23-a transverse rack and pinion configuration; 24-a longitudinal servo motor; 25-longitudinal rack and pinion configuration; 26-vacuum chuck; 261-a sucker body; 262-vacuum generator mounting holes; 263-vacuum chamber; 264-check valve plate; 265-screw; 266-a spring; 267-silica gel sucker; 27-a vacuum generator; 28-longitudinal linear guide rail; 29-a loading and unloading support frame; 210-a lateral movement rack; 3-conveying line; 4-a pneumatic press I; 41-a material pressing cylinder; 42-synchronous rack and pinion configuration; 421-transverse balance rack; 422-transverse balance gear; 423-longitudinal balance rack; 424-longitudinal balance gear; 425-axis; 43-a frame; 44-a platen; 5-a turnover machine; 51-large counter-rotating sprocket; 52-a clamping cylinder; 53-crank link mechanism; 531-first short link; 532-first crank; 533-long connecting rod; 534-second short link; 535-second crank; 54-a movable frame; 55-a clamping plate; 56-linear guide rail; 57-pinion gear; 58-bull gear; 59-fixing plate; 510-overturning the rack; 511-a support frame of the tilter; 512-small sprocket; 513-a flipping motor; 6-a pneumatic press II; 7-a sucker type automatic blanking machine; 8-a blanking unpowered roller conveyor; a-a door panel; b-pressing the line.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-2, the utility model provides an assembly line for line pressing doors, which comprises a suction cup type automatic feeding machine 2, a pneumatic press machine I4, a turnover machine 5, a pneumatic press machine II 6 and a suction cup type automatic blanking machine 7 which are arranged along the conveying direction of a conveying line 3 in sequence, wherein the suction cup type automatic feeding machine 2 is used for conveying a door plate to be pressed to the conveying line 3, and the door plate to be pressed is conveyed to each station through the conveying line 3; the pneumatic press I4 is used for pressing a line on one side surface of the door plate to be pressed, which is conveyed to the first press-mounting station; the turnover machine 5 is used for turning over the door plate conveyed to the turnover station by 180 degrees; the pneumatic press II 6 is used for pressing the other side face of the door plate conveyed to the second press-fitting station; and the sucking disc type automatic blanking machine 7 is used for loading and unloading the door plate which is pressed into the line from the conveying line 3.

The conveying line 3 is of a sectional structure and is respectively arranged below each station and between two adjacent stations. The conveying lines 3 positioned below the suction disc type automatic feeding machine 2 and the suction disc type automatic blanking machine 7 are respectively a feeding unpowered roller conveyor 1 and a blanking unpowered roller conveyor 8, and the rest parts of the conveying lines 3 are all belt conveyors.

As shown in fig. 3-4, the suction cup type automatic feeding machine 2 and the suction cup type automatic discharging machine 7 have the same structure, and both comprise a transverse servo motor 21, a transverse linear guide 22, a transverse rack-and-pinion structure 23, a longitudinal servo motor 24, a longitudinal rack-and-pinion structure 25, a vacuum chuck 26, a vacuum generator 27, a longitudinal linear guide 28, a feeding and discharging support frame 29 and a transverse moving frame 210, wherein the feeding and discharging support frame 29 is of a gantry type structure, the top of the feeding and discharging support frame is provided with the transverse linear guide 22, the transverse moving frame 210 is slidably connected with the transverse linear guide 22, the transverse rack-and-pinion structure 23 is arranged between the transverse moving frame 210 and the feeding and discharging support frame 29, the transverse servo motor 21 is arranged on the transverse moving frame 210, and the output end of the transverse rack-and-pinion structure 23 is connected, i.e. the transverse, And is engaged with the transverse gear; the longitudinal linear guide rail 28 is arranged on the transverse moving frame 210, a longitudinal rack in the longitudinal rack-and-pinion structure 25 is connected with the longitudinal linear guide rail 28 in a sliding manner, and the longitudinal servo motor 24 is arranged on the transverse moving frame 210 and the output end of the longitudinal servo motor is connected with a longitudinal gear in the longitudinal rack-and-pinion structure 25. A vacuum cup 26 is provided at the end of the longitudinal rack in the longitudinal rack and pinion arrangement 25, and a vacuum generator 27 is provided on the vacuum cup 26. The vacuum chuck 26 is moved in the lateral direction by the driving of the lateral servomotor 21 and moved in the longitudinal direction (vertical direction) by the driving of the longitudinal servomotor 24.

As shown in fig. 5, the vacuum chuck 26 includes a chuck body 261, a check valve and a silica gel chuck 267, wherein a vacuum chamber 263 is disposed in the chuck body 261, a vacuum generator mounting hole 262 is disposed at the top of the chuck body 261, a plurality of chuck mounting holes are disposed at the bottom of the chuck body 261, a check valve is disposed in each chuck mounting hole, and the silica gel chuck 267 is disposed outside the check valve; the check valve includes check valve plate 264, screw 265, spring 266 and silica gel sucking disc 267, and wherein check valve plate 264 is located vacuum cavity 263 and is connected with screw 265, and the cover is equipped with spring 266 on the screw 265, and the both ends of spring 266 are respectively with the shaft shoulder butt of check valve plate 264 and screw 265 tip, make check valve plate 264 seal sucking disc mounting hole.

As shown in fig. 6 to 7, the pneumatic press i 4 and the pneumatic press ii 6 have the same structure, and each of the pneumatic presses includes a pressing cylinder 41, a synchronous rack-and-pinion structure 42, four frames 43, and a pressing plate 44, wherein the frames 43 cross over the conveying line 3, the four pressing cylinders 41 are disposed on the frames 43, the pressing plates 44 are connected to output ends of the four pressing cylinders 41, and the synchronous rack-and-pinion structure 42 is connected between the pressing plate 44 and the frames 43, and is used for adjusting a horizontal position of the pressing plate 44.

The synchronous rack-and-pinion structure 42 includes two transverse balance racks 421, two transverse balance gears 422, two longitudinal balance racks 423, two longitudinal balance gears 424 and a shaft 425, wherein the transverse balance racks 421 and the shaft 425 are arranged in a groined shape, the transverse balance racks 421 can be connected with the frame 43 in a relatively sliding manner, each shaft 425 is provided with two transverse balance gears 422 and two longitudinal balance gears 424 located between the two transverse balance gears 422, the two transverse balance gears 422 are respectively engaged with the two transverse balance racks 421, the pressing plate 44 is connected with the four longitudinal balance racks 423, and the four longitudinal balance racks 423 are respectively engaged with the four longitudinal balance gears 424.

Synchronous rack and pinion structure 42 is passive link gear, pushes down the in-process at clamp plate 44, drives four longitudinal balance gear 424 through four longitudinal balance racks 423 and rotates, and then drives four horizontal balance gear 422 and rotate, because of horizontal balance gear 422 and longitudinal balance gear 424 coaxial arrangement, further drives two horizontal balance racks 421 again along lateral shifting to guarantee that clamp plate 44 can not keep the level to push down because of the error influence of a certain pressure material cylinder 41 all the time.

Pneumatic press I4 and pneumatic press II 6 can adopt current multiple pressfitting form, the utility model discloses an in the embodiment preferred aerostatic press that has adopted guarantees that the door plant is not crushed by the pressure, adopts four post frame rack and pinion transmission simultaneously, guarantees that pressfitting surfacing is indeformable. The synchronous rack and pinion structure 42 ensures that the pressure plate 44 can be lifted and lowered simultaneously in all directions, and ensures uniform pressure.

As shown in fig. 8-9, two sets of tilters 5 are provided, which are respectively used for clamping two ends of the door panel and cooperatively overturning the door panel. The turnover machine 5 comprises a large reverse rotation chain wheel 51, a clamping driving mechanism, a movable frame 54, a clamping plate 55, a linear guide rail 56, a pinion 57, a large gear 58, a fixing plate 59, a turnover rack 510, a turnover machine support frame 511, a small chain wheel 512 and a turnover motor 513, wherein the linear guide rail 56 and the turnover rack 510 are arranged on the turnover machine support frame 511 along the direction perpendicular to the conveying line 3, the fixing plate 59 is in sliding connection with the linear guide rail 56, the turnover motor 513 is arranged on the fixing plate 59, the small chain wheel 512 and the pinion 57 are sequentially arranged on an output shaft, the large reverse rotation chain wheel 51 is arranged on the fixing plate 59 and is in transmission connection with the small chain wheel 512 through a chain, the large gear 58 is arranged on the fixing plate 59, and two sides of the large; one end of the movable frame 54 is fixed on the large reverse rotation chain wheel 51, two clamping driving mechanisms are symmetrically arranged on the movable frame 54, the two clamping driving mechanisms are respectively connected with two corresponding clamping plates 55, and the two clamping plates 55 can be driven to move towards opposite directions, so that the door panel can be clamped and loosened.

As shown in fig. 10, the clamping driving mechanism includes a clamping cylinder 52 and a crank-link mechanism 53, the crank-link mechanism 53 includes a first short link 531, a first crank 532, a long link 533, a second short link 534 and a second crank 535, wherein the first short link 531 and the second short link 534 are both vertically and fixedly connected with the clamping plate 55, the first crank 532 and the second crank 535 are both L-shaped structures, and the top portions thereof are both hinged with the movable frame 54, one end of the first crank 532 is hinged with the output end of the clamping cylinder 52, and the other end thereof is hinged with the first short link 531, one end of the second crank 535 is hinged with the first crank 532 through the long link 533, and the long link 533 is parallel with the clamping plate 55, and the other end of the second crank 535 is hinged with the second short link 534, the clamping cylinder 52 drives the first crank 532 and the second crank 535 to synchronously rotate, so as to drive the clamping plate 55 to open or close through the first short link 531 and the second short link 534.

The length of upset rack 510 is greater than the width of door plant, guarantees that the door plant can carry out 180 degrees upsets. The clamping plate 55 is a sponge type clamping plate.

The operation principle of the turnover machine 5 is as follows:

after the door panel is conveyed to the overturning station, the belt conveyor stops, the cylinder rod of the clamping cylinder 52 extends out, the crank connecting rod mechanism 53 is pushed to move, and the crank connecting rod mechanism 53 moves to drive the clamping plate 55 to move towards the door panel clamping direction, so that the door panel is clamped; then, the overturning motor 513 drives the small chain wheel 512 and the small gear 57 to rotate anticlockwise, the small chain wheel 512 drives the large reversing chain wheel 51 to rotate anticlockwise through a chain, the small gear 57 is meshed with the large gear 58, the large gear 58 is meshed with the overturning rack 510, and the whole structure is driven to move rightwards. The gear ratio of the small gear 57 to the large gear 58 in the rack-and-pinion structure should be equal to the ratio of the half circumference of the large counter-rotating sprocket 51 to the length of the rack, so that the turnover structure is just moved to the right end of the turnover rack 510 after the door panel is turned over for 180 degrees; thus, when the next door panel is turned, the turning motor 513 rotates in reverse, and after the door panel is turned 180 degrees, the turning structure returns to the left end of the turning rack 510.

As shown in fig. 11, the utility model discloses the outward appearance structure chart of line ball door is done to line ball door assembly line, needs pressure equipment line ball B at door plant A's both sides face, needs artifical rubber coating before the line ball to glue line ball B in the wire casing of door plant. And an automatic glue spreader can be further installed at the manual gluing and wire pressing station, so that the labor is further saved and the product quality is improved.

The utility model discloses a work flow is:

firstly, manually completing the work of gluing the front side of the door panel and installing pressing lines;

step two, conveying the door plate on the feeding unpowered roller conveyor 1 to a belt conveyor through a sucker type automatic feeding machine 2;

automatically pressing the front side of the door plate through a pneumatic press I4;

step four, automatically turning the door panel for 180 degrees through a turning machine 5;

fifthly, the work of gluing the back side of the door panel and installing pressing lines is finished manually;

sixthly, the door plate and the lines are automatically pressed on the reverse side of the pneumatic press II 6;

and step seven, completing automatic blanking and stacking of the door plate on the suction disc type automatic blanking machine 7.

The utility model discloses a production line uses automation equipment to carry and overturn, reduces workman's physical power. Meanwhile, the production line type production of the line pressing door is realized, the production beats of all the working procedures are approximately equal, and the number of products produced in unit time is much larger than that produced by the traditional single-piece production, so that the production efficiency is greatly improved, and the labor cost is saved.

The above description is only for the embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, extension, etc. made within the spirit and principle of the present invention are all included in the protection scope of the present invention.

Claims

1. An assembly production line for line pressing doors is characterized by comprising a suction disc type automatic feeding machine (2), a pneumatic press I (4), a turnover machine (5), a pneumatic press II (6) and a suction disc type automatic blanking machine (7) which are sequentially arranged along the conveying direction of a conveying line (3),

the sucking disc type automatic feeding machine (2) is used for conveying the door plates to be pressed to a conveying line (3), and the door plates to be pressed are conveyed to each station through the conveying line (3);

the pneumatic press I (4) is used for pressing a line on one side surface of the door plate to be pressed, which is conveyed to the first press-mounting station;

the turnover machine (5) is used for turning over the door panel conveyed to the turnover station by 180 degrees;

the pneumatic press II (6) is used for pressing the other side face of the door panel conveyed to the second press-fitting station;

and the sucking disc type automatic blanking machine (7) is used for feeding and discharging the door plate subjected to line pressing from the conveying line (3).

2. The line pressing door assembly production line as claimed in claim 1, wherein the pneumatic press I (4) and the pneumatic press II (6) are identical in structure and respectively comprise four pressing cylinders (41), synchronous gear and rack structures (42), frames (43) and pressing plates (44), wherein the frames (43) cross the conveying line (3), the four pressing cylinders (41) are respectively arranged on the frames (43), the pressing plates (44) are connected to the output ends of the four pressing cylinders (41), and the synchronous gear and rack structures (42) are connected between the pressing plates (44) and the frames (43) and used for adjusting the horizontal positions of the pressing plates (44).

3. Line door assembly line according to claim 2, characterized in that said synchronous rack-and-pinion structure (42) comprises a transverse balancing rack (421), a transverse balancing pinion (422), a longitudinal balancing rack (423), a longitudinal balancing pinion (424) and a shaft (425), wherein the two transverse balance racks (421) and the two shafts (425) are arranged in a groined shape, the transverse balance racks (421) can be connected with the frame (43) in a relatively sliding manner, two transverse balance gears (422) and two longitudinal balance gears (424) positioned between the two transverse balance gears (422) are arranged on each shaft (425), the two transverse balance gears (422) are respectively meshed with the two transverse balance racks (421), the pressing plate (44) is connected with four longitudinal balance racks (423), and the four longitudinal balance racks (423) are respectively meshed with four longitudinal balance gears (424).

4. The line pressing door assembly production line of claim 1, wherein the turnover machine (5) comprises a large reverse rotation chain wheel (51), a clamping driving mechanism, a movable frame (54), a clamping plate (55), a linear guide rail (56), a pinion (57), a gearwheel (58), a fixing plate (59), a turnover rack (510), a turnover machine support frame (511), a small chain wheel (512) and a turnover motor (513), wherein the linear guide rail (56) and the turnover rack (510) are arranged on the turnover machine support frame (511) along a direction perpendicular to the conveying line (3), the fixing plate (59) is in sliding connection with the linear guide rail (56), the turnover motor (513) is arranged on the fixing plate (59), the small chain wheel (512) and the pinion (57) are sequentially arranged on an output shaft, the large reverse rotation chain wheel (51) is arranged on the fixing plate (59), and the large reverse rotation chain wheel (51) is arranged on the, The turnover rack is in transmission connection with a small chain wheel (512) through a chain, the large gear (58) is arranged on the fixing plate (59), and two sides of the large gear are respectively meshed with the turnover rack (510) and the small gear (57); one end of the movable frame (54) is fixed on the large reverse rotation chain wheel (51), two clamping driving mechanisms are symmetrically arranged on the movable frame (54), the two clamping driving mechanisms are respectively connected with two corresponding clamping plates (55), and the two clamping plates (55) can be driven to move towards opposite directions, so that the door panel can be clamped and loosened.

5. The line for assembling line pressing doors according to claim 4, characterized in that the clamping driving mechanism comprises a clamping cylinder (52) and a crank-link mechanism (53), the crank-link mechanism (53) comprises a first short link (531), a first crank (532), a long link (533), a second short link (534) and a second crank (535), wherein the first short link (531) and the second short link (534) are both vertically and fixedly connected with the clamping plate (55), the first crank (532) and the second crank (535) are both of L type structure, the top parts of the first crank (532) and the second crank (535) are both hinged with the movable frame (54), one end of the first crank (532) is hinged with the output end of the clamping cylinder (52), the other end of the first crank is hinged with the first short link (531), one end of the second crank (535) is hinged with the first crank (532) through a long link (533), the long link (533) is parallel to the clamping plate (55), and the other end of the second crank (535) is hinged with the second short link (534).

6. Line-pressing door assembly line according to claim 4, characterized in that the length of said overturning rack (510) is greater than the width of the door panel.

7. Line ball door assembly line according to any one of claims 4 to 6, characterized in that said two groups of tilters (5) are respectively used for clamping the two ends of the door panel and for realizing the overturning of the door panel in a cooperative manner.

8. The line pressing door assembly line according to claim 1, wherein the sucking disc type automatic feeding machine (2) and the sucking disc type automatic discharging machine (7) are identical in structure and comprise a transverse servo motor (21), a transverse linear guide rail (22), a transverse rack and pinion structure (23), a longitudinal servo motor (24), a longitudinal rack and pinion structure (25), a vacuum sucking disc (26), a vacuum generator (27), a longitudinal linear guide rail (28), a feeding and discharging support frame (29) and a transverse moving frame (210), wherein the feeding and discharging support frame (29) is of a gantry type structure, the transverse linear guide rail (22) is arranged at the top of the feeding and discharging support frame, the transverse moving frame (210) is connected with the transverse linear guide rail (22) in a sliding manner, and the transverse rack and pinion structure (23) is arranged between the transverse moving frame (210) and the feeding and discharging support frame (29), the transverse servo motor (21) is arranged on the transverse moving frame (210), and the output end of the transverse servo motor is connected with the transverse gear rack structure (23); the vertical linear guide rail (28) is arranged on the transverse moving frame (210), the vertical gear rack structure (25) is in sliding connection with the vertical linear guide rail (28), the vertical servo motor (24) is arranged on the transverse moving frame (210), the output end of the vertical servo motor is connected with the vertical gear rack structure (25), the vacuum chuck (26) is arranged at the output end of the vertical gear rack structure (25), and the vacuum generator (27) is arranged on the vacuum chuck (26).

9. The line pressing door assembly line according to claim 8, wherein the vacuum chuck (26) comprises a chuck body (261), a check valve and a silica gel chuck (267), wherein a vacuum cavity (263) is arranged in the chuck body (261), a vacuum generator mounting hole (262) is formed in the top of the chuck body (261), a plurality of chuck mounting holes are formed in the bottom of the chuck body, a check valve is arranged in each chuck mounting hole, and the silica gel chuck (267) is arranged on the outer side of the check valve; the check valve includes check valve plate (264), screw rod (265), spring (266) and silica gel sucking disc (267), and wherein check valve plate (264) is located in vacuum cavity (263) and be connected with screw rod (265), the cover is equipped with spring (266) on screw rod (265), the both ends of spring (266) respectively with the shaft shoulder butt of check valve plate (264) and screw rod (265) tip, make check valve plate (264) seal the sucking disc mounting hole.

10. Line pressing door assembly line according to claim 9, characterized in that the conveyor line (3) is of a segmented structure and is respectively arranged below each station and between two adjacent stations, and the conveyor lines (3) below the suction cup type automatic feeder (2) and the suction cup type automatic feeder (7) are respectively a feeding unpowered roller conveyor (1) and a discharging unpowered roller conveyor (8).