CN108857392B

CN108857392B - LED box body assembling method and device

Info

Publication number: CN108857392B
Application number: CN201810773323.2A
Authority: CN
Inventors: 黄加园
Original assignee: Fujian Qiangli Photoelectricity Co Ltd
Current assignee: Fujian Qiangli Photoelectricity Co Ltd
Priority date: 2018-07-14
Filing date: 2018-07-14
Publication date: 2024-03-19
Anticipated expiration: 2038-07-14
Also published as: CN108857392A

Abstract

The invention discloses an LED box assembling method and device, wherein the LED box assembling device comprises a tray for fixing a box, a transmission device for sliding the tray, an automatic pressing mechanism arranged above the transmission device and used for limiting the vertical direction of the box, and two lifting mechanisms arranged at two ends of the transmission device, wherein the transmission device is provided with a plurality of automatic clamping mechanisms for clamping the tray, the transmission device is provided with an upper slideway and a lower slideway, the lifting mechanisms are respectively connected with the upper slideway and the lower slideway in lifting and falling states, the situations of collision, scratch, electrostatic injury and the like of the box are avoided, the labor cost is effectively reduced, and the production efficiency and quality are improved.

Description

LED box body assembling method and device

Technical Field

The invention relates to the field of LED box sets, in particular to an LED box assembly method and device.

Background

In the production process of the LED box body, the box body frame and the module are assembled, and the assembled box body is called as a box body. The assembling process of the box body comprises the assembly of the module and the box body frame.

In the prior art, pearl cotton cloth is placed on the floor, then a limiting jig is placed on the surface of a pearl cotton body, a box frame is prepared, the box frame is placed in a jig limiting area, the box frame is pushed to the reference edge of a jig L row, after the box frame is placed in place, a clamping block in the transverse direction and the vertical direction is adjusted, a handle is screwed after the box frame is adjusted to a proper position, a corresponding module is prepared, positioning columns arranged by the module are aligned with positioning holes of the box frame, the box frame is placed one by one, after the placement is completed, a quick clamp is clamped by a spanner, after bilateral clamping is completed, the jig is turned up, the jig is erected by 90 degrees, the jig is held by one person on the front side, one person on the back side holds an electric batch for locking the box frame, after the locking is completed, the box frame is placed in an original position, the quick clamp on the two sides is loosened, then the box frame is lifted out of the jig, the lifted box frame is horizontally placed on the pearl cotton table, whether the box is flat, whether screws are leaked or not is checked, and after the box frame is flat, the procedure is completed. And then packaging the prepared paper box after locking is completed.

In the operation of the existing method, the problems of low yield, low efficiency, disordered site, high personnel strength and the like are caused by the fact that the pearl cotton is padded on the floor, people are required to hold the box body, the box body is more in types, the jig is more in types, the method is non-uniform, the efficiency is low, the assembly is uneven, and the phenomenon that the module is easy to be damaged easily exists.

Disclosure of Invention

The invention aims to provide an LED box assembly device which has the advantages of reducing the labor intensity of personnel and improving the efficiency and the yield.

The technical purpose of the invention is realized by the following technical scheme:

the utility model provides a LED box assembly device, is including the tray that is used for fixed box, supplies the transmission device that the tray slided, locates the automatic hold-down mechanism that is used for inject the vertical direction of box above the transmission device and set up two elevating system at transmission device both ends, be provided with a plurality of automatic clamping mechanisms that are used for the centre gripping tray on the transmission device, be provided with slide and glide slope on the transmission device, elevating system rises, falls the state and connects slide and glide slope respectively.

So set up, fix the box on the tray along vertical direction, elevating system starts to send into the slide with the tray that is equipped with the box in, reaches predetermined station back self-holding mechanism and cliies the tray, and the tray is fixed a position along the direction of delivery this moment, and rethread automatic hold-down mechanism pushes down the box top this moment, can carry out spacingly with the box all-round, makes it fixed completely, and the workman can assemble and operation such as screw lock pair this moment. The box body does not need to be moved or turned over, and the whole process is isolated from ground contact, so that the box body can be operated on a material line with static resistance and softness, and the conditions of collision, scratch, electrostatic injury and the like of the box body can be effectively avoided. And because a plurality of stations can be arranged in the upper slideway and equally divide the workload, the whole assembly line has higher production efficiency, and the tray can be sent into the lower slideway after being lowered by the lifting mechanism at the tail end after being assembled, so that the tray is returned to the original point, the automatic reset function is realized, the automation degree is higher, the labor cost is effectively reduced, and the production efficiency and the quality are improved.

Further preferred are: the automatic clamping mechanism comprises two limiting devices with opposite limiting directions and a limiting cylinder for controlling the limiting devices to lift.

So set up, drive stop device through spacing cylinder and go up and down to carry out spacing centre gripping to the tray.

Further preferred are: the limiting device comprises a bottom plate, a swinging rocker hinged to the bottom plate and a torsion spring for keeping one end of the swinging rocker tilted, and the bottom plate is arranged on the limiting cylinder.

So set up, when through swing wane and torsional spring, make spacing cylinder can rise stop device to predetermined height in advance, this moment because swing wane and tray bottom contact, can overcome the elastic force and make the certain angle of swing wane upset be in or regional horizontality, and when tray and swing wane separate, the effort that the torsional spring produced makes the swing wane reset, make its one end perk carry out spacingly to the one end of tray, so can reduce the required accuracy when spacing cylinder rises, need not to accomplish just rise on time when the tray reaches the station and will be limited by the tray, simultaneously because need not to consider the spacing effect that the accuracy makes the centre gripping after forming more good.

Further preferred are: and a cushion block for limiting the initial angle of the swinging rocker is arranged on the bottom plate.

So set up, the contained angle between the swing wane when reducing initial angle and the swing wane when the level for after tray and swing wane separation, the swing wane can be quick reply initial angle, reduces reset time, reduces the distance between two stop device on the same self-holding mechanism promptly on indirectly, makes the distance between two stop device more approach in the length of tray, thereby reaches better centre gripping effect.

Further preferred are: the limiting device is an elastic telescopic rod.

Further preferred are: clamping openings into which the limiting devices can be clamped are formed in two sides of the tray.

By the arrangement, a space for the limiting device to be clamped in is reserved after the two adjacent trays are abutted, and meanwhile, the limiting device can be given enough time to form clamping limiting.

Further preferred are: the transmission device is provided with a plurality of sensors, and each group of limiting cylinders is controlled by one sensor to control one group of limiting devices to lift.

So set up, through the start-up of the spacing cylinder of sensor automatic control, improve equipment degree of automation.

Further preferred are: two rows of rollers are arranged on the upper slideway and the lower slideway.

So set up, reduce frictional force, be convenient for the tray slide on last glide slope.

Further preferred are: the upper slideway is provided with a sliding rail, and the tray is provided with a sliding groove matched with the sliding rail.

So set up, increase the stability of tray for it can not take place to turn over to the problem owing to the weight of box.

Further preferred are: the automatic pressing mechanism comprises a plurality of lower pressing plates and a plurality of lower pressing cylinders for controlling the lower pressing plates to lift, and the number of the lower pressing plates is the same as that of the automatic clamping mechanisms.

Further preferred are: the lifting mechanism comprises a base, a conveying mechanism, a lifting frame and a lifting cylinder, wherein the conveying mechanism comprises a conveying belt and a motor for driving the conveying belt, the lifting frame is arranged on the base, the conveying mechanism is arranged above the lifting frame, the lifting frame comprises two lifting motion rods formed by rotating and connecting two cross rods and a rotating shaft for connecting the two lifting motion rods, the lifting cylinder is arranged on the rotating shaft, a piston rod of the lifting cylinder is connected with the conveying mechanism, and two upper ends of the lifting motion rods are connected onto the conveying mechanism in a sliding mode along the horizontal direction, and two lower ends of the lifting motion rods are connected onto the base in a sliding mode along the horizontal direction.

The device is arranged in such a way, the piston rod on the lifting cylinder stretches out and draws back to drive the two cross rods to rotate, so that the distance between the rotating shaft and the conveying mechanism is adjusted, and the conveying mechanism is driven to lift.

Further preferred are: two clamping blocks are arranged on the tray, and clamping portions and clamping handles capable of controlling the clamping portions to horizontally move are arranged on the clamping blocks.

The clamping handle is adjusted to control the clamping part to move so as to clamp and fix the box body.

Further preferred are: the tray is provided with a left sliding groove and a right sliding groove which can be used for sliding the clamping blocks, the sliding grooves are provided with sliding blocks, and the clamping blocks are connected to the sliding blocks through rotary bolts.

So set up, through the setting of groove that slides for the distance is adjustable between the grip block, thereby carries out the centre gripping to the box of equidimension not.

The invention also provides a method for assembling the LED box body.

a method of assembling an LED housing, comprising:

s1, detecting, and checking whether the electricity, gas and various mechanisms on the assembly device are normal;

s2, after the box frame is installed and detected normally, placing the box frame on a tray on one of the lifting mechanisms, wherein the lifting mechanism is at an initial position, and adjusting the clamping handles to fix the box frame by the two clamping parts;

s3, conveying the tray to a station, after finishing installation, conveying the tray into an upper slideway by a starting motor, starting a first group of automatic pressing mechanisms on a path after passing through a first sensor, lifting two limiting devices on the first group of automatic pressing mechanisms, and ejecting a plane of the bottom of the tray by the limiting devices which are abutted to the bottom of the tray under the action of elastic force when the tray reaches a preset station, and clamping the tray into a clamping opening to limit the tray on the station;

s4, fixing the box body, starting a pressing cylinder after reaching a station to enable the lower pressing plate to be arranged at the top of the box body in a low mode, and positioning the box body in an omnibearing mode at the moment;

s5, assembling, namely aligning positioning pins on an assembling module to positioning holes of a box frame one by one, and after the assembling is finished, releasing the positioning of the automatic pressing mechanism and the automatic clamping mechanism, and pushing the tray below the assembled box to the next station through the tray at the initial position in the same way as S3 and S4;

s6, screw locking is carried out on the back of the box body in a manual mode, and the screw locking operation can be carried out in one or more stations according to the locking workload;

s7, taking out the box body, continuously starting a motor on the lifting mechanism at the initial position after the screw locking is completed, pushing a tray below the box body after the screw locking is completed into the lifting mechanism at the tail end through a tray on the motor, and taking out the box body after the clamping part on the tray is loosened;

s8, resetting, driving the tray to descend by the lifting mechanism at the tail end, and starting the motor to send the tray into the glide slope along the opposite direction for resetting.

In summary, the invention has the following beneficial effects:

1. the whole process is automatically produced, so that the labor cost is effectively reduced, and the production efficiency is improved;

2. the whole process does not need to move or turn over the box body, and the whole process is isolated from ground contact, so that the whole process can be operated on a material line with static resistance and softness, the conditions of the box body such as impact, scratch, electrostatic injury and the like can be effectively avoided, and the quality of products is improved.

Drawings

FIG. 1 is a schematic structural view of a first embodiment;

FIG. 2 is a schematic view of the structure of the conveying device and the automatic pressing mechanism in the first embodiment;

FIG. 3 is a schematic view of a lifting mechanism in the first embodiment;

FIG. 4 is a schematic view of the structure of the tray and the automatic clamping mechanism in the first embodiment;

FIG. 5 is a schematic view showing the structure of a tray in the first embodiment;

FIG. 6 is a schematic view of the structure of a limiting device and a limiting cylinder in the first embodiment;

fig. 7 is a schematic structural view of a limiting device and a limiting cylinder in the third embodiment.

In the figure, 1, a transmission device; 11. a slide way is arranged; 12. a glidepath; 13. a sensor; 14. shan Tuopan control buttons; 15. A control handle is pressed downwards; 16. a roller; 17. a slide rail; 2. a lifting mechanism; 21. a conveying mechanism; 22. a lifting cylinder; 23. a base; 24. a lifting motion rod; 241. a cross bar; 25. a buffer protection pad; 26. a motor; 27. a rotating shaft; 28. a sliding rail is arranged on the upper part; 29. a lower slip rail; 3. an automatic pressing mechanism; 31. a pressing cylinder; 32. a lower pressing plate; 4. a tray; 41. a clamping block; 411. a clamping part; 412. a clamping handle; 42. a slip groove; 43. a slide block; 44. rotating the bolt; 45. a clamping opening; 46. a chute; 5. an automatic clamping mechanism; 51. a limiting device; 52. A limit cylinder; 511. a bottom plate; 512. a torsion spring; 513. swinging the seesaw; 5131. a limit part; 514. a cushion block; 53. an elastic telescopic rod.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Example 1: an LED box assembly device, as shown in figure 1, comprises a transmission device 1, an automatic pressing mechanism 3, an automatic clamping mechanism 5, a lifting mechanism 2 and a tray 4.

Referring to fig. 2, the conveyor 1 is provided with an upper slide 11 and a lower slide 12 for sliding movement thereon the tray 4. As shown in fig. 1, two lifting mechanisms 2 are provided, which are respectively arranged at two ends of the transmission device 1, and in combination with fig. 3, a conveyor belt and lifting cylinders 22 are arranged on the lifting device, and the lifting cylinders 22 are used for controlling the lifting of the conveyor belt. Wherein the conveyor belt is connected to an upper run 11 on the conveyor 1 when it is raised to the top and to a lower run 12 on the conveyor 1 when it is lowered to the bottom.

The pallet 4 sent out from the lifting mechanism 2 at the head end enters the lifting mechanism 2 at the tail end after passing through the transmission device 1, and the conveyor belt on the lifting mechanism 2 at the tail end can send the pallet 4 into the glide slope 12 after descending, and then is sent back into the lifting mechanism 2 at the head end, so that the whole circulation is realized.

As shown in fig. 5 and fig. 5, the tray 4 is used for fixing a box body, two clamping blocks 41 and two parallel sliding grooves 42 are arranged on the tray, two sliding blocks 43 are slidably connected to each sliding groove 42, each clamping block 41 is connected with one sliding block 43 on each sliding groove 42 through a rotary bolt 44, the rotary bolts 44 penetrate through the clamping blocks 41 and are in threaded connection with the sliding blocks 43, and the sliding blocks 43 and the clamping blocks 41 can be fixed by screwing the rotary bolts 44.

The two clamping blocks 41 are respectively provided with a clamping part 411 and a clamping handle 412, the clamping parts 411 on the two clamping blocks 41 are oppositely arranged, the clamping handles 412 are connected to the clamping blocks 41 through bolts and threads, and one ends of the clamping handles 412 penetrate through the clamping blocks 41 and are connected with the clamping parts 411.

As shown in fig. 1, the number of the automatic clamping mechanisms 5 is plural, and the specific number may be a number depending on the amount of work and the number of processes required, and generally may be plural, and then the number of use is selected according to circumstances, and in this embodiment, three are taken as an example.

As shown in fig. 4, each automatic clamping mechanism 5 includes two limiting devices 51 and two limiting cylinders 52, and the two limiting devices 51 are mounted on piston rods of the limiting cylinders 52 and are controlled by the limiting cylinders 52 to rise and fall. The two limiting devices 51 are opposite to the limiting direction of the tray 4, so that the tray 4 is clamped, and the upper slideway 11 is limited in the conveying direction.

Referring to fig. 6, the limiting device 51 includes a base plate 511, a swing rocker 513 and a torsion spring 512, the base plate 511 is fixedly mounted on a piston rod of the limiting cylinder 52, a connection portion is disposed between two ends of the swing rocker 513, the swing rocker is hinged to the base plate 511 through the connection portion, and the torsion spring 512 is disposed at the hinge portion and is used for keeping one end of the swing rocker 513 tilted. One end of the tilting part is a limiting part 5131, and the end surface of the limiting part 5131 is arc-shaped.

Referring to fig. 6, a spacer 514 is provided on the base plate 511, and the spacer 514 is located at an opposite end to the stopper 5131 for elevating the end to limit the initial angle of tilting of the swing rocker 513.

As shown in fig. 5, the tray 4 is provided with clamping openings 45 for the stoppers 51 to be engaged with.

As shown in fig. 2 and 4, two rows of rollers 16 are provided on each of the glides 11 and 12 for sliding the trays 4, respectively.

The upper slideway 11 is provided with a sliding rail 17, the tray 4 is provided with a sliding groove 46 matched with the sliding rail 17, and the lower slideway 12 can be provided with the sliding rail 17 according to actual conditions.

As shown in fig. 2, the transmission device 1 is provided with a sensor 13 connected with the automatic clamping mechanism 5, and each group of limiting cylinders 52 is controlled by one sensor 13 to control one group of limiting devices 51 to synchronously lift, wherein the sensor 13 is arranged at the middle position of two limiting devices 51 on the same automatic clamping mechanism 5.

Three single-tray control buttons 14 for controlling the automatic clamping mechanism 5 to release the restriction and a pressing control handle 15 for controlling the pressing down and returning of the pressing down plate 32 are provided on the transfer device 1, respectively.

Referring to fig. 1 and 2, the automatic pressing mechanism 3 is in a hanging arrangement, and includes a plurality of lower pressing plates 32 and a plurality of lower pressing cylinders 31, wherein the lower pressing plates 32 are respectively and fixedly installed on piston rods of the lower pressing cylinders 31, and the number of the lower pressing plates 32 is the same as that of the automatic clamping mechanisms 5, so that three lower pressing plates 32 are arranged in the embodiment, and the lower pressing plates 32 are respectively located right above the automatic clamping mechanisms 5.

As shown in fig. 3, the lifting mechanism 2 further includes a base 23, a conveying mechanism 21, and a lifting frame, the lifting frame is disposed on the base 23, and the conveying mechanism 21 is disposed above the lifting frame.

The lifting frame comprises two lifting motion rods 24 formed by rotationally connecting two cross rods 241 and a rotating shaft 27 connected with the two lifting motion rods 24, and the two cross rods 241 are rotationally connected to the rotating shaft 27.

The conveyor belt is arranged on the conveying mechanism 21, one end of the conveyor belt is provided with an opening, and the other end is provided with a buffer protection pad 25 made of flexible material.

The lifting cylinder 22 is mounted on the rotating shaft 27, a mounting plate is arranged on the conveying mechanism 21, and a piston rod of the lifting cylinder 22 is connected with the mounting plate.

The conveying mechanism 21 is provided with two upper sliding rails 28 which are horizontally arranged, the base 23 is provided with two lower sliding rails 29 which are horizontally arranged, two upper ends of the lifting movement rod 24 are connected to the two upper sliding rails 28 in a sliding manner, and two lower ends of the lifting movement rod are connected to the two lower sliding rails 29 in a sliding manner.

The conveyor 21 includes a conveyor belt and a motor 26 for driving the conveyor belt.

Example 2: a method of assembling an LED housing, comprising:

s2, after the box frame is installed and detected to be normal, the box frame is placed on a tray 4 on one of the lifting mechanisms 2, wherein the lifting mechanism 2 is at an initial position, and the clamping handles 412 are adjusted to enable the two clamping parts 411 to fix the box frame;

s3, conveying the tray 4 to a station, after finishing installation, conveying the tray 4 into an upper slideway 11 by a starting motor 26, starting a first group of automatic pressing mechanisms 3 on a path after passing through a first sensor 13, lifting two limiting devices 51 on the first group of automatic pressing mechanisms, and when the tray 4 reaches a preset station, ejecting the limiting device 51 abutting against the bottom of the tray 4 out of a plane where the bottom of the tray 4 is positioned under the action of elastic force, and clamping the tray 4 into a clamping opening 45 to limit the tray 4 on the station;

s4, fixing the box body, starting a pressing cylinder 31 after reaching a station to enable a lower pressing plate 32 to be arranged at the top of the box body in a low mode, and positioning the box body in an omnibearing mode at the moment;

s5, assembling, namely aligning positioning pins on an assembling module to positioning holes of a box frame one by one, and after the assembling is finished, releasing the positioning of the automatic pressing mechanism 3 and the automatic clamping mechanism 5, and pushing the tray 4 below the assembled box to the next station through the tray 4 at the initial position in the same way as S3 and S4;

s7, taking out the box body, continuously starting a motor 26 on the lifting mechanism 2 at the initial position after the screw locking is completed, pushing the tray 4 under the box body after the screw locking is completed into the lifting mechanism 2 at the tail end through the tray 4 on the motor, and taking out and loosening the clamping part 411 on the tray 4 to take out the box body;

s8, the reset and tail end lifting mechanism 2 drives the tray 4 to descend, and the motor 26 is started to send the tray 4 into the glide slope 12 in the opposite direction for resetting.

Example 3: as shown in fig. 7, the difference from embodiment 1 is that the stopper 51 is an elastic telescopic rod 53.

The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications which do not creatively contribute to the present embodiment can be made by those skilled in the art after reading the present specification as required, but are protected by patent laws within the protection scope of the present invention.

Claims

1. An LED box assembly device, characterized by: the automatic clamping device comprises a tray (4) for fixing a box body, a transmission device (1) for sliding the tray (4), an automatic pressing mechanism (3) arranged above the transmission device (1) and used for limiting the vertical direction of the box body, and two lifting mechanisms (2) arranged at two ends of the transmission device (1), wherein a plurality of automatic clamping mechanisms (5) used for clamping the tray (4) are arranged on the transmission device (1), an upper slideway (11) and a lower slideway (12) are arranged on the transmission device (1), and the lifting mechanisms (2) are respectively connected with the upper slideway (11) and the lower slideway (12) in lifting and descending states; the automatic clamping mechanism (5) comprises two limiting devices (51) with opposite limiting directions and a limiting cylinder (52) for controlling the limiting devices (51) to lift;

the limiting device (51) comprises a bottom plate (511), a swinging rocker (513) hinged on the bottom plate (511) and a torsion spring (512) for keeping one end of the swinging rocker (513) tilted, and the bottom plate (511) is arranged on the limiting cylinder (52); the base plate (511) is provided with a cushion block (514) for limiting the initial angle of the swinging rocker (513);

the automatic pressing mechanism (3) comprises a plurality of lower pressing plates (32) and a plurality of lower pressing cylinders (31) for controlling the lower pressing plates (32) to lift, and the number of the lower pressing plates (32) is the same as that of the automatic clamping mechanisms (5); elevating system (2) are including base (23), conveying mechanism (21), crane and lift cylinder (22), conveying mechanism (21) are including the conveyer belt and be used for driving motor (26) of conveyer belt, the crane sets up on base (23), conveying mechanism (21) are located the crane top, the crane includes two lift motion bars (24) that constitute and pivot (27) of connecting two lift motion bars (24) by two cross pole (241) rotation connection, lift cylinder (22) are installed on pivot (27), and the piston rod of lift cylinder (22) is connected with conveying mechanism (21), two upper ends of lift motion bar (24) are connected on conveying mechanism (21) along the horizontal direction slip, two lower extreme are connected on base (23) along the horizontal direction slip.

2. The LED housing assembly device of claim 1, wherein: clamping openings (45) into which limiting devices (51) can be clamped are formed in two sides of the tray (4).

3. The LED housing assembly device of claim 1, wherein: the transmission device (1) is provided with a plurality of sensors (13), and each group of limiting cylinders (52) is controlled by one sensor (13) to control one group of limiting devices (51) to lift.

4. The LED housing assembly device of claim 1, wherein: two rows of rollers (16) are arranged on the upper slideway (11) and the lower slideway (12); the upper slide way (11) is provided with a slide rail (17), and the tray (4) is provided with a slide groove (46) matched with the slide rail (17).

5. The LED housing assembly device of claim 1, wherein: two clamping blocks (41) are arranged on the tray (4), and clamping parts (411) and clamping handles (412) capable of controlling the clamping parts (411) to move horizontally are arranged on the clamping blocks (41); the tray (4) is provided with a left sliding groove (42) and a right sliding groove (42) which can slide by the clamping blocks (41), the sliding groove (42) is provided with a sliding block (43), and the clamping blocks (41) are connected to the sliding block (43) through rotating bolts (44).

6. An assembling method for use in the LED housing assembling apparatus of claims 1 to 5, comprising:

s2, after the box frame is installed and detected normally, the box frame is placed on a tray (4) on one of the lifting mechanisms (2), wherein the lifting mechanism (2) is at an initial position, and the clamping handles (412) are adjusted to enable the two clamping parts (411) to fix the box frame;

s3, conveying the tray (4) to a station, after finishing installation, conveying the tray (4) into an upper slideway (11) by a starting motor (26), starting a first group of automatic pressing mechanisms (3) on a path after passing through a first sensor (13), lifting two limiting devices (51) on the first group of automatic pressing mechanisms, and when the tray (4) reaches a preset station, ejecting a plane of the bottom of the tray (4) by the limiting devices (51) which are abutted to the bottom of the tray (4) under the action of elastic force, and clamping the plane of the bottom of the tray (4) into a clamping opening (45) to limit the tray (4) on the station;

s4, fixing the box body, starting a pressing cylinder (31) after the box body reaches a station to enable a pressing plate (32) to be arranged at the top of the box body in a low mode, and positioning the box body in all directions at the moment;

s5, assembling, namely aligning positioning pins on an assembling module to positioning holes of a box frame one by one, and after the assembling is finished, releasing the positioning of the automatic pressing mechanism (3) and the automatic clamping mechanism (5), and pushing the tray (4) below the assembled box to the next station in the same manner as S3 and S4;

s7, taking out the box body, continuously starting a motor (26) on the lifting mechanism (2) at the initial position after the screw locking is completed, pushing the tray (4) under the box body after the screw locking is completed into the lifting mechanism (2) at the tail end through the tray (4) on the motor, and taking out and loosening a clamping part (411) on the tray (4) to take out the box body;

s8, the lifting mechanism (2) at the tail end drives the tray (4) to descend, and the motor (26) is started to send the tray (4) into the glide slope (12) along the opposite direction for resetting.