CN115319474B - Top skin processingequipment - Google Patents

Abstract

The invention provides a top skin processing device. The top skin processingequipment includes from feed to the decoiler, welding host computer, blank holder, plate shearing machine and the unloading transfer chain that the ejection of compact direction set gradually, the decoiler is used for carrying first and second top skin to the welding host computer, and the welding host computer is used for welding the welding seam that first top skin and second top skin interval set up formed and obtains the welding top skin, and the blank holder is used for carrying out the blank holder to the edge at welding top skin both ends, the plate shearing machine is used for after the blank holder the welding top skin cuts off according to preset length and obtains target welding top skin, and the unloading transfer chain is used for carrying target welding top skin to next station. The top skin processing device provided by the invention can continuously finish the work of welding, edge pressing and cutting, has high working efficiency and good welding and edge pressing quality, and can greatly improve the existing top skin processing technology.

Description

Top skin processingequipment

Technical Field

The invention belongs to the technical field of top skin processing, and particularly relates to a top skin processing device.

Background

In recent ten years, in the development of the passenger car manufacturing industry in China, the modeling, the structure, the variety, the grade and the like of customer products are improved, but in the manufacturing process, most passenger car manufacturers still adopt the traditional process method to carry out production, and the production is limited by the specification of equipment, so that the problems of lag process, low efficiency, unstable quality, high labor intensity and the like exist in the existing top skin processing.

Because the top covering width is wider, integrated into one piece is comparatively difficult, mainly adopts splice welded mode at present, and the top covering after the welding needs to roll the muscle and increase its intensity, and its both sides need hem, and just can weld on the side wall skeleton in the border of passenger train top covering like this, to the processing of passenger train top covering, roll the muscle on rolling muscle equipment earlier, then to the hem on the hem equipment, and when the hem, need the manual work to fix a position the passenger train top covering to prevent the position deviation of muscle on the top covering behind the hem. At present, welding and edge pressing equipment are separately arranged, and the splicing welding mode in the prior art still has the defects of uncontrollable production quality and unrepeatable mass production; the edge pressing equipment has the defects that the working process is complicated and the machining precision cannot be effectively controlled.

Disclosure of Invention

The invention aims to provide a processing device for processing a top skin, which has the advantages of good welding quality, high edge pressing precision and the like, so as to solve the problems in the prior art.

In order to achieve the above object, the present invention provides a top skin processing device, comprising an uncoiler, a welding host, a blank holder, a plate shearing machine and a blanking conveying line which are connected and arranged along a feeding-discharging direction, wherein:

The welding host is used for welding two first top skins and second top skins which are arranged side by side at intervals and are provided with welding seams, and comprises a supporting mechanism, a conveying roller way, a first driving mechanism and a welding mechanism, wherein the conveying roller way, the first driving mechanism and the welding mechanism are arranged on the supporting mechanism; wherein: the conveying roller way is divided into a left conveying roller way for conveying the first top skin and a right conveying roller way for conveying the second top skin along a first direction, and comprises a plurality of first conveying rollers, a plurality of second conveying rollers and a plurality of third conveying rollers which are sequentially arranged along a second direction, wherein the first direction and the second direction are mutually perpendicular; the first driving mechanism is connected with the second conveying roller and used for driving the second conveying roller to rotate; the welding mechanism is arranged above the second conveying roller and is used for welding the welding seam to obtain a welding top skin;

the number of the uncoilers is two, wherein one uncoiler is used for conveying the first top skin to a left-side conveying roller way, and the other uncoiler is used for conveying the second top skin to a right-side conveying roller way;

the edge pressing machine is positioned at one end of the third conveying roller far away from the uncoiling machine and is used for pressing edges of two ends of the welding top skin, and comprises a base, a material supporting roller assembly arranged on the base, two edge pressing mechanisms respectively arranged on two sides of the material supporting roller assembly, and a second driving mechanism used for driving the edge pressing mechanisms to work, wherein the edge pressing mechanisms are used for pressing the edges of the welding top skin into a target shape;

The plate shearing machine is used for cutting off the welded top skin after edge pressing according to a preset length to obtain a target welded top skin;

and the blanking conveying line is used for conveying the cut target welding top skin to the next station.

In a specific embodiment, the uncoiler comprises a frame, a feeding drum mounted on the frame, an expansion sleeve mounted at the center of the feeding drum, and a pneumatic compression roller assembly connected with the frame and abutted against the surface of the feeding drum.

In a specific implementation manner, the supporting mechanism comprises a base, two groups of symmetrically arranged first supporting pieces, two groups of symmetrically arranged second supporting pieces and two groups of symmetrically arranged third supporting pieces and a top frame, wherein the first supporting pieces extend from the upper surface of the base to the direction away from the base, the top frame is arranged at intervals opposite to the base, two ends of the top frame are respectively connected with the two groups of second supporting pieces, the base comprises a first base for supporting the first supporting pieces, the second supporting pieces, the third supporting pieces, a second base arranged side by side with the first base, and a first driving mechanism is arranged on the second base.

In a specific embodiment, the intermediate positions of the first and second pinch rollers of the plurality of second transport rollers each have a gap that matches the weld; the welding mechanism comprises a wire reel, a wire feeder, two pressing assemblies and a laser welding head, wherein the wire reel, the wire feeder and the two pressing assemblies are arranged at intervals on the top frame, the laser welding heads are arranged between the pressing assemblies and located above the gaps, the wire reel is used for storing welding wires, the wire feeder is used for conveying the welding wires of the wire reel to the welding seams, the laser welding head is used for emitting laser beams and projecting the laser beams to the welding seams, the pressing assemblies comprise bearings, connecting supports and inclined pressing plates, the bearings are connected with the top frame and sleeved on the central shafts of the first clamping rollers of the second conveying rollers, the connecting supports are arranged on the inner sides of the bearings and connected with the bearings, the inclined pressing plates are arranged on one sides of the connecting supports, and the inclined pressing plates are used for pressing the top skin.

In a specific embodiment, the number of the second conveying rollers is two, and the first driving mechanism comprises a central shaft, a central gear, two groups of driven gears and a welding power assembly, wherein the central shaft is positioned between the two second conveying rollers and is mounted on the second supporting piece, the central gear is mounted on the central shaft, the two groups of driven gears are in meshed connection with the central gear, and the welding power assembly is used for driving the central shaft to rotate; each second conveying roller corresponds to a group of driven gears, each group of driven gears comprises a first driven gear arranged on the central shaft of a first clamping roller of the second conveying roller and a second driven gear arranged on the central shaft of the second clamping roller of the second conveying roller, the second driven gears are in meshed connection with the central gear, the first driven gears are in meshed connection with the second driven gears, the welding power assembly drives the central shaft to rotate, the central shaft drives the central gear to rotate, the central gear drives two second driven gears which are arranged on two sides of the central gear and are in meshed connection with the central gear to rotate, and the second driven gears drive the first driven gears which are in meshed connection with the second driven gears to rotate, so that the second conveying roller is driven to rotate.

In a specific embodiment, the welding power assembly comprises a first motor fixed on the second base, a first speed reducer in transmission connection with the first motor, a first driving wheel installed on an output shaft of the first speed reducer, a first sprocket installed on the second base and arranged at intervals with the first driving wheel, and a first chain around the first driving wheel and the first sprocket, wherein the first sprocket is installed on the central shaft and arranged at intervals with the central gear, the first motor drives the first speed reducer, the first speed reducer drives the first driving wheel, the first driving wheel drives the first sprocket to rotate through the first chain, and the first sprocket drives the central shaft to rotate.

In a specific embodiment, the welding host further comprises an adjusting mechanism group corresponding to the first conveying roller and the third conveying roller, the adjusting mechanism group comprises two symmetrically arranged first adjusting mechanisms, each first adjusting mechanism comprises a mounting column fixedly connected with the first base and a first rotating screw rod arranged on the mounting column, and the two top skins are clamped between the two first rotating screw rods of the adjusting mechanism group.

In one specific embodiment, the edge pressing mechanism comprises a sliding plate slidably mounted on the base, an extension plate extending from the sliding plate in a direction away from the base, and a plurality of edge pressing members arranged on the extension plate at intervals; the edge pressing component comprises a first edge pressing roller and a second edge pressing roller, gaps for clamping the top skin are formed between the first edge pressing roller and the second edge pressing roller at intervals, and the second driving mechanism is installed on the sliding plate and connected with the first edge pressing roller and the second edge pressing roller.

In a specific embodiment, the edge pressing machine further comprises a hand-operated screw rod assembly for driving the sliding plate to slide, wherein the hand-operated screw rod assembly comprises a screw rod unit, two sliding rails respectively arranged on two sides of the screw rod unit, and a sliding block which is arranged on the sliding rails and can slide along the sliding rails, and the sliding block is fixedly connected with the sliding plate.

In a specific embodiment, the second driving mechanism comprises a blank pressing power assembly for providing power, two gear assemblies arranged corresponding to the two blank pressing mechanisms, and a power transmission assembly with two ends respectively connected with the two gear assemblies for transmitting power, wherein the blank pressing power assembly is connected with one of the gear assemblies and transmits the power to the other gear assembly through the power transmission assembly;

The gear assembly comprises N gear sets, transmission gears, a first transmission shaft and a second transmission shaft, wherein the transmission gears are positioned between two adjacent gear sets and are in meshed connection with the two adjacent gear sets, the first transmission shaft and the second transmission shaft are arranged on the base, the gear sets comprise two first gears and second gears which are in meshed connection, the first gears are arranged on the shaft of the first edge pressing roller, the second gears are arranged on the shaft of the second edge pressing roller, the second gears are in meshed connection with the transmission gears, the number of the transmission gears is N-1, one transmission gear is connected with the power assembly, and N is an integer larger than 2; n-1 transmission gears are respectively arranged on the first transmission shaft and the second transmission shafts; the first transmission shaft is a telescopic transmission shaft, and one of the first transmission shafts of the gear assembly is connected with the power assembly.

The beneficial effects of the invention at least comprise:

1. the invention provides a top skin processing device which comprises an uncoiler, a welding host, a blank holder, a plate shearing machine and a blanking conveying line which are sequentially arranged in the direction from feeding to discharging, wherein the welding host comprises a supporting mechanism, a conveying roller way, a first driving mechanism and a welding mechanism, the conveying roller way, the first driving mechanism and the welding mechanism are arranged on the supporting mechanism, the conveying roller way comprises a first conveying roller, a second conveying roller and a third conveying roller, the first conveying roller, the second conveying roller and the third conveying roller are sequentially arranged in the direction from feeding to discharging, the second conveying roller and the third conveying roller are arranged in a discharging area, the first driving mechanism is connected with the second conveying roller, and the welding mechanism is arranged in the welding area; the edge pressing machine comprises a base, a material supporting roller assembly arranged on the base, two edge pressing mechanisms respectively arranged on two sides of the material supporting roller assembly, and a second driving mechanism for driving the edge pressing mechanisms to work, wherein the edge pressing mechanisms are used for pressing the edge of the welding top skin into a target shape; like this, send first top covering and second top covering to the first transport roller of welding host computer through the decoiler, get into the third transport roller after the welding is accomplished, then reentry the blank holder carries out the blank holder to the welding top covering that obtains after the welding, cuts off through the plate shearing machine after the blank holder is accomplished and obtains the target welding top covering, and the target welding top covering is carried to next station through unloading transfer chain, can accomplish the work of welding in succession through top covering processingequipment, blank holder and cutting off, work efficiency is high, and welds, blank holder is of high quality, can improve the processing technology of current top covering greatly.

2. The edge pressing mechanism comprises a base sliding plate, an extending plate extending from the sliding plate to a direction far away from the base, and a plurality of edge pressing parts arranged on the extending plate at intervals; therefore, the sliding plate is slidably mounted on the base, the distance between the two edge pressing mechanisms is adjustable, the top skins with different width sizes can be compatible, and the production cost is reduced.

In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

FIG. 1 is a schematic view of a top skin processing apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of an uncoiler of a top skin processing apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic perspective view illustrating an angle of a welding main machine of a top skin processing apparatus according to an embodiment of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic perspective view of another angle of a welding host of a top skin machining device according to an embodiment of the present invention;

FIG. 6 is a front view of a welding host machine of a top skin tooling apparatus according to one embodiment of the present invention;

FIG. 7 is an enlarged view of portion B of FIG. 6;

FIG. 8 is a schematic view of a portion of a welding area of a welding host of a top skin machining device according to an embodiment of the present invention;

FIG. 9 is a schematic view of a press-edge machine with an angle for a top skin processing apparatus according to an embodiment of the present invention;

fig. 10 is an enlarged view of a portion C shown in fig. 9;

FIG. 11 is a schematic view showing a front structure of a sliding plate of a trimming machine of a top skin processing apparatus according to an embodiment of the present invention connected to other components;

fig. 12 is a schematic structural view of a connection between a sliding plate of a beading machine and a hand screw assembly of the top skin processing device according to an embodiment of the present invention;

FIG. 13 is a schematic perspective view of an adjustable edge pressing module of an edge pressing machine of a top skin processing device according to an embodiment of the present invention;

FIG. 14 is a cross-sectional view of the adjustable blank holder module of FIG. 13;

fig. 15 is a schematic view of a portion of the structure of the adjustable edge pressing module shown in fig. 13.

Reference numerals illustrate:

Detailed Description

The embodiments of the invention are described in detail below with reference to the attached drawings, but the invention can be defined and covered in a number of different embodiments according to the claims.

Referring to fig. 1, the present invention provides a top skin processing device 100, which is used for welding two first top skins and second top skins which are arranged side by side at intervals and form a weld, and performing edge pressing and cutting separation on the welded top skins to obtain target welded top skins meeting technical indexes.

The top skin processing device 100 comprises an uncoiler 10, a welding host 20, a beading machine 30, a plate shearing machine 40 and a blanking conveying line 50 which are sequentially arranged from the feeding direction to the discharging direction, the uncoiler 10 is used for providing a first top skin and a second top skin, the welding host 20 is used for welding a welding seam and obtaining a welding top skin, the beading machine 30 is used for pressing the edge of the welding top skin into a target shape, the plate shearing machine 40 is used for cutting the welding top skin after beading according to a preset length to obtain a target welding top skin, and the blanking conveying line 50 is used for conveying the target welding top skin to a next station.

Referring to fig. 2, the number of the uncoilers 10 is two, wherein one uncoiler is used for conveying the first top skin, and the other uncoiler is used for conveying the second top skin. The uncoiler 10 comprises a frame 11, a feeding drum 12 arranged on the frame 11, an expansion sleeve assembly 13 arranged at the center of the feeding drum 12, and a pneumatic compression roller device 14 connected with the frame 11 and abutted against the surface of the feeding drum 12.

The top skin is fixed by adopting the expansion sleeve assembly, and the middle mandrel of the expansion sleeve assembly rotates to drive the link mechanism to open so as to be compatible with the top skins with different specifications.

In the embodiment, the expansion sleeve mechanism adopts a manual expansion mode, the diameter expansion and contraction range is phi 450-phi 550, and the pneumatic compression roller device 14 can prevent the coil material from unreeling.

Referring to fig. 3 to 8, the welding host 20 includes a supporting mechanism 21, a transport roller way 22, a first driving mechanism 23, a welding mechanism 24, and a first screw lifter 25. The supporting mechanism 21 plays a role in supporting and fixing other components, the transport roller way 22 is used for transporting the first top skin and the second top skin at the same time, the first driving mechanism 23 is used for driving the transport roller way 22, the welding mechanism 24 is used for welding the welding seam, and the first spiral lifter 25 is used for adjusting the distance between the upper clamping roller and the lower clamping roller of the transport rail 22.

The supporting mechanism 21 includes a base 211, two sets of symmetrically arranged first supporting members 212 extending from the upper surface of the base 211 to a direction far away from the base 211, two sets of symmetrically arranged second supporting members 213, two sets of symmetrically arranged third supporting members 214, and a top frame 215 opposite to the base 211 and arranged at intervals, wherein two ends of the top frame 215 are respectively connected with the two sets of second supporting members 213.

The base 211 includes a first base 2111 for supporting the first support 212, the second support 213, and the third support 214, and a second base 2112 disposed side by side with the first base 2111, and the first driving mechanism 23 is mounted on the second base 2112.

The base 211 mainly plays a supporting role, and its structure is not limited, and other elements such as the transport roller table 22 and the first driving mechanism 23 may be stably supported.

The first support 212, the second support 213 and the third support 214 are arranged at intervals along the transport direction of the top skin, and are used for installing the transport roller table 22. In this embodiment, the number of the first supporting members 212 in each group is three, the number of the second supporting members 213 in each group is one, and the number of the third supporting members 214 in each group is three. The first support 212 includes a post 2121 fixedly connected to the base 211, a first mounting plate 2122 fixed to a side of the post 2121 away from the base 211, a side plate 2123 extending from the first mounting plate 2122 in a direction away from the post 2121, and a second mounting plate 2124 disposed opposite to the first mounting plate 2122 and fixedly connected to the side plate 2123.

The second supporting member 213 is a bearing plate, and is used for installing the driving mechanism 23 and the conveying roller way 22. In this embodiment, the height of the second supporting member 213 is greater than the sum of the heights of the upright 2121 and the side plate 2123, i.e., the upper surface of the second supporting member 213 is located on a different plane than the upper surface of the second mounting plate 2124, and the upper surface of the second supporting member 213 is higher than the upper surface of the second mounting plate 2124.

The third support 214 is identical in structure to the first support 212. The same structure means that the third member 213 includes a column fixedly connected to the base 11, a first mounting plate fixed to a side of the column away from the base 11, a side plate extending from the first mounting plate in a direction away from the column, and a second mounting plate disposed opposite to the first mounting plate and fixedly connected to the side plate, and no reference numerals will be given here.

The top frame 215 includes a cross beam 2151 with two ends respectively disposed on the two second supporting members 213, a cover plate 2152 covering one end of the cross beam 2151 and disposed opposite to the second supporting members, a dust-proof plate 2153 covering the second conveying roller 222 of the conveying roller way 22 and connected to the cover plate 2152, a cover plate 2154 located on one side of the dust-proof plate 2153 near the second conveying roller 222 and connected to the dust-proof plate 12153, and a support plate 2155 connected to the cover plate 2154 and the cross beam 2151; the cover plate 2152 is located below the dust guard 2153, the cover plate 2154 is sandwiched between the dust guard 2153 and the support plate 2155, the number of the second supporting members 213 is two, and correspondingly, the number of the cover plate 2152, the dust guard 2153, the cover plate 2154 and the support plate 2155 is two, and are arranged at opposite intervals.

Along a first direction, the transport roller way 22 is divided into a left transport roller way for transporting the first top skin and a right transport roller way for transporting the second top skin, and along a second direction, the transport roller way 22 includes a first transport roller 221, a second transport roller way 222 and a third transport roller 223 which are sequentially arranged, and the first direction and the second direction are mutually perpendicular, in this embodiment, the first direction is a width direction shown in fig. 1, and the second direction is a length direction shown in fig. 1.

The first transporting roller 221, the second transporting roller 222 and the third transporting roller 223 each comprise a first clamping roller and a second clamping roller which are arranged at intervals up and down, and the first top skin and the second top skin to be welded are clamped between the first clamping roller and the second clamping roller and move simultaneously.

The transport roller way 22 serves as a positioning and guiding function.

In this embodiment, the number of the first transporting rollers 221 is three, the number of the second movable transporting rollers 222 is two, the number of the third transporting rollers 223 is three, and the three first transporting rollers 221, the two second transporting rollers 222 and the three third transporting rollers 223 are sequentially arranged along the feeding-discharging direction, so as to form the transporting roller way 22 for transporting the top skin to finish feeding, welding and discharging of the welding host 20.

The two ends of the first transporting roller 221 are respectively mounted on the side plate 2123 of the first supporting member 212, the two ends of the second transporting roller 222 are respectively mounted on the second supporting member 213, and the two ends of the third transporting roller 23 are respectively mounted on the side plate of the third supporting member 214.

Preferably, the first and second clamping rollers of the first, second and third transporting rollers 221, 222 and 223 are respectively provided with a recess 224 formed by recessing inwards from the outer surface, the recess 224 is matched with the welding seam, and the welding can be ensured to be smoother by arranging the recess 224. The matching of the recess 224 with the weld seam does not mean that the width of the recess is the same as the width of the weld seam, but means that the two are in position match (the orthographic projection of the weld seam to the base completely falls into the recess), the width of the weld seam is less than or equal to the width of the recess 224, in this embodiment, the width of the weld seam is less than 0.5mm, and the width of the recess 24 is preferably 0.5mm.

Preferably, the transport roller way 22 further includes a protective shell 225 covering the first nip rollers of the first transport roller 221 and the third transport roller 223, and the protective shell 225 is fixedly connected with the second mounting plate of the first support 212 or the second mounting plate of the third support 214. The protective shell 225 can protect impurities such as dust from falling into the roller conveyor 20, and protect the safety of operators.

The first driving mechanism 23 includes a central shaft 231 disposed between the two second transporting rollers 222 and mounted on the second supporting member 213, a central gear 232 mounted on the central shaft 231, two driven gears 233 engaged with the central gear 232, and a welding power assembly 234 for driving the central shaft 231 to rotate; each second transporting roller 222 corresponds to a set of driven gears 233, each set of driven gears 233 comprises a first driven gear 2331 mounted on the shaft of a first clamping roller of the second transporting roller 222 and a second driven gear 2332 mounted on the shaft of a second clamping roller of the second transporting roller 222, the second driven gears 2332 are in meshed connection with the central gear 232, the first driven gears 2331 are in meshed connection with the second driven gears 2332, the welding power assembly 234 drives the central shaft 231 to rotate, the central shaft 231 drives the central gear 232 to rotate, the central gear 232 drives two second driven gears 2332 positioned on two sides of the central gear and in meshed connection with the central gear, and the second driven gears 2332 drive the first driven gears 2331 in meshed connection with the second driven gears 2332 to rotate.

In the present embodiment, the central shaft 231 is mounted to the second support 213 near the second base 2112, and the central shaft 231 passes through the second support 213, and the central gear 232 is mounted to an end of the central shaft 231 near the second base 2112.

The number of the sun gears 232 is one, the number of the first driven gears 2331 and the number of the second driven gears 2332 are four, each second transporting roller 222 is respectively provided with two first driven gears 2331 and two second driven gears 2332, specifically, two ends of a first clamping roller of the second transporting roller 222 are respectively provided with one first driven gear 2331, and two ends of a second clamping roller of the second transporting roller 222 are respectively provided with one second driven gear 2332.

The welding power assembly 234 includes a first motor 2341 fixed on the second base 2112, a first speed reducer 2342 in transmission connection with the first motor 2341, a first driving wheel 2343 installed on an output shaft of the first speed reducer 2342, a first sprocket 2344 installed on the central shaft 231 and spaced from the first driving wheel 2343, and a first chain 2345 surrounding the first driving wheel 2343 and the first sprocket 2344, wherein the first motor 2341 drives the first speed reducer 2342, the first speed reducer 2342 drives the first driving wheel 2343, the first driving wheel 2343 drives the first sprocket 2344 to rotate through the first chain 2345, and the first sprocket 2344 drives the central shaft 231 to rotate.

In this embodiment, the first sprocket 2344 is disposed on a side of the sun gear 232 away from the second support 213, that is, the sun gear 232 is located between the second support 213 and the first sprocket 2344.

The first drive mechanism 23 operates as follows: the first motor 2341 drives the first speed reducer 2342, the first speed reducer 2342 drives the first driving wheel 2343, the first driving wheel 2343 drives the first chain wheel 2344 through the first chain 2345, the first chain wheel 2344 drives the central gear 232 through the central shaft 231, the central gear 232 drives the second driven gear 2332, and the second driven gear 2332 drives the first driven gear 2331; the first driven gear 2331 is mounted on the shaft of the first nip roller of the second transport roller 222, and the second driven gear 2332 is mounted on the shaft of the second nip roller of the second transport roller 222, so that the second transport roller 222 can be driven.

The welding mechanism 24 includes a wire reel 241, a wire feeder 242, two sets of pressing assemblies 243 disposed at intervals, and a laser welding head 244 disposed between the two pressing assemblies 243 and above the weld.

The wire reel 241 is used to store welding wire and is connected to a wire feeder 242 by welding wire, in this embodiment, the wire reel 241 is mounted to a support plate 2155 of the top frame 214.

The wire feeder 242 is used to feed welding wire from the wire reel 241 to the weld, and in this embodiment, the wire feeder 242 is mounted to the support plate 2155 of the top frame 215.

The pressing assembly 243 comprises a bearing 2431 connected with the cover plate 2154 and sleeved on the shaft of the first clamping roller of the first second conveying roller, a connecting bracket 2432 arranged on the inner side of the bearing 2431 and connected with the bearing 2431, and an inclined pressing plate 2433 arranged on one side of the connecting bracket 2432 away from the bearing 2431, wherein the inclined pressing plate 2433 is used for pressing the first top skin and the second top skin. In this embodiment, the first one of the second transport rollers 222 refers to a second transport roller that is closer to the first transport roller 221 of the two second transport rollers 222.

In the welding process, the two inclined pressing plates 2433 are respectively abutted against two sides of the welding seam, so that the workpiece is prevented from buckling deformation in the welding process.

In the present embodiment, the welding mechanism 24 is a laser filler wire welder, and in other embodiments, the laser filler wire welder may be replaced with a MIG welder.

The first screw lifter 25 is connected to the first nip roller of the second movable roller 222, and is used for adjusting the gap width between the first nip roller and the second nip roller of the second movable roller 222. One of the first spiral lifters is disposed at each of both ends of the second transport roller 222, two first spiral lifters disposed symmetrically are disposed at the middle portion of the first second transport roller 222, and the first spiral lifters disposed at the middle portion and the first spiral lifters disposed at the adjacent end portions share one hand crank.

Preferably, the welding host 20 further comprises an adjusting mechanism group for guiding and positioning, the adjusting mechanism group comprises two symmetrically arranged first adjusting mechanisms 26, and the first top skin and the second top skin are sandwiched between the two first adjusting mechanisms 26. One first adjustment mechanism group is respectively arranged between two adjacent first conveying rollers 221 and two adjacent third conveying rollers 223. In this embodiment, the number of the first transporting rollers 221 and the number of the third transporting rollers 223 are three, and accordingly, the number of the first adjusting mechanism groups corresponding to the first transporting rollers 221 is two, and the number of the first adjusting mechanism groups corresponding to the third transporting rollers 223 is two.

The first adjusting mechanism 26 includes a mounting post 261 fixedly connected with the first base 211 and located at the outer side of the upright 2121, and a first rotary screw rod 262 fixedly connected with the mounting post 261, where a first top skin and a second top skin that are arranged side by side are clamped between the side baffle wheels of the two first rotary screw rods 262. The first and second top skins having different widths can be compatible by adjusting the first rotary screw 262.

Referring to fig. 9 to 15, the edge press 30 includes a base 31, a material supporting roller assembly 32, an edge pressing mechanism 33, a hand screw assembly 34, a second driving mechanism 35, a second screw lifter 36, a second adjusting mechanism 37, a material pressing cylinder assembly 38 and an adjustable edge pressing module 39.

The specific structure of the base 31 is not limited, and in this embodiment, the base 31 is a frame structure.

The material supporting roller assembly 32 comprises two rows of supporting columns 321 which are arranged at intervals and fixedly connected with the base 31, and two groups of material supporting rollers 322 which are respectively arranged at two rows of the supporting columns 321 and far away from one end of the base 31, the number of the supporting columns 321 is two, the number of the material supporting rollers 322 is two, namely, each row of supporting columns 321 supports one group of material supporting rollers 322, and the welding top skin is transported to the next station through the material supporting rollers 22.

The material supporting roller 322 includes a first portion material supporting roller 3221 located in the feeding area of the edge pressing machine 30 and a second portion material supporting roller 3222 located in the edge pressing area of the edge pressing machine 30, and the two edge pressing mechanisms 33 are separately disposed outside the two second portion material supporting rollers 3222. It should be noted that, the material supporting roller 22 is an integral body, and for convenience of description, the material supporting roller 322 is manually divided into two parts; in addition, the outer side of the second portion supporting roller 3222 refers to a side of one second portion supporting roller away from the other second portion supporting roller.

In this embodiment, the first portion of the backing roll 3221 is adjacent to the welding mainframe 20 and the second portion of the backing roll 3222 is adjacent to the plate shearing machine 40.

The number of the edge pressing mechanisms 33 is two, the two edge pressing mechanisms 33 are separately disposed at the outer sides of the two second portion supporting rollers 3222 and slidably mounted on the base 31, that is, the interval distance between the two edge pressing mechanisms 33 is adjustable.

The two edge pressing mechanisms 33 are symmetrically disposed about a central axis of the edge pressing machine 30, and the direction of the central axis is parallel to the transport direction of the top skin.

The edge pressing mechanism 33 includes a slide plate 331 slidably mounted on the base 31, an extension plate 332 extending from the slide plate 331 in a direction away from the base 31, and a plurality of edge pressing members 333 provided at intervals on the extension plate 332.

The sliding plate 331 has a plate structure, and is configured to carry the extending plate 332, the plurality of edge pressing members 333, and the second driving mechanism 35, and to drive the above elements to slide integrally, and the edge pressing mechanism 33 may change a distance between the edge pressing mechanism 33 and another edge pressing mechanism 33 by sliding the sliding plate 331, so as to be compatible with processing top skins with different width sizes. Normally, the positions of the two edge pressing mechanisms 33 are adjusted simultaneously, and the adjustment amounts are the same, for example, if the distance between the welded top skin to be processed is smaller than that between the two existing edge pressing mechanisms 33 by 4 cm, the two edge pressing mechanisms 33 slide inwards by 2 cm respectively, so that the welded top skin to be processed can be matched with other stations conveniently.

The extending plate 332 has a plate-like structure, and is used for mounting the binder 333 and the second driving mechanism 35.

The number of the blank holder members 333 is plural, and the blank holder members 333 are disposed on the extension plate 332 at intervals along the longitudinal direction of the extension plate 332, which is the same as the transport direction of the welded top skin. In the present embodiment, the number of the edge pressing members 333 is four, and in other embodiments, the number of the edge pressing members 333 may be three, five, or the like.

The edge pressing component 333 includes a first edge pressing roller 3331 and a second edge pressing roller 3332 which are disposed at an upper-lower interval, and the first edge pressing roller 3331 and the second edge pressing roller 3332 are disposed at intervals to form a gap for sandwiching the welding top skin, wherein the first edge pressing roller 3331 is located at a side of the second edge pressing roller 3332 away from the base 31.

The shape design of the first edge roller 3331 and the second edge roller 3332 is related to the target shape to be pressed, in this example, two edges of the sheet need to be pressed into a bevel edge inclined toward the direction of the base 31, and the inclination angle is 10 degrees, and is the angle between the bevel edge and the plane of the top skin main body.

The first edge roller 3331 and the second edge roller 3332 are all integrally formed, so that the shapes of the two are convenient to describe, the first edge roller 3331 and the second edge roller 3332 are manually divided into a main body part and an extension part which are connected, and the extension part of the first edge roller 3331 and the extension part of the second edge roller 3332 are close to the extension plate 332. In this embodiment, the main body of the first edge roller 3331 and the main body of the second edge roller 3331 are both in cylindrical structures, the extending portion of the first edge roller 3331 and the extending portion of the second edge roller 3331 are both in a truncated cone structure, the extending portion of the first edge roller 3331 gradually increases from the main body toward the extending plate 332, the extending portion of the second edge roller 3332 gradually decreases from the main body toward the extending plate 332, and the extending portion of the first edge roller 3331 and the extending portion of the second edge roller 3331 cooperate with each other to make the edge of the welding top skin pressed into a bevel edge inclined toward the direction of the base 31.

Specifically, in this embodiment, the angle of the hypotenuse to be pressed is 10 degrees, correspondingly, the included angle between the bus bar of the extending portion of the first edge pressing roller 3331 and the extending portion of the second edge pressing roller 3331 and the axis is 10 degrees, and if the angle of the hypotenuse to be pressed is 15 degrees, correspondingly, the included angle between the bus bar of the extending portion of the first edge pressing roller 3331 and the extending portion of the second edge pressing roller 3331 and the axis is 15 degrees, that is, the shapes of the extending portion of the first edge pressing roller 3331 and the extending portion of the second edge pressing roller 3331 are related to the shape of the hypotenuse to be pressed.

The hand-operated screw assembly 34 is disposed on one side of the sliding plate 31 facing the direction of the base 11, and is used for driving the sliding plate 31 to slide, and comprises a screw unit 341, two sliding rails 342 disposed on two sides of the screw unit, and a sliding block 343 mounted on the sliding rails 342 and capable of sliding along the sliding rails 342, wherein the sliding block 343 is fixedly connected with the sliding plate 331, and the sliding plate 331 slides along the sliding rails 342. The screw is screwed by a hand wheel of the hand screw unit 341 to drive the sliding plate 331 to slide along the sliding rail 342 by a screw nut.

The second driving mechanism 35 is used for driving the two edge pressing mechanisms 33. The second driving mechanism 35 is mounted on the sliding plate 331 so as to be slidable together with the sliding plate 331.

The second driving mechanism 35 includes a blank holder power assembly 353 for providing power, two gear assemblies 351 disposed corresponding to the two blank holder mechanisms 33, and a power transmission assembly 352 having both ends connected to the two gear assemblies 351, respectively, for transmitting power, wherein the blank holder power assembly 353 is connected to one of the gear assemblies 351 and transmits power to the other gear assembly 351 through the power transmission assembly 352.

In this embodiment, only one power assembly 353 is provided, the other edge pressing mechanism 33 is driven by the power transmission assembly 352 to transmit power, and in other embodiments, two power assemblies 353 may be provided corresponding to two edge pressing mechanisms 33, and in this case, the power transmission assembly 352 may not be provided.

The gear assembly 351 includes N gear sets 3511, transmission gears 3512 disposed between two adjacent gear sets 3511 and engaged with two adjacent gear sets 3511, a first bearing seat 3513 fixedly connected with the base 31, a plurality of second bearing seats 3514 fixedly connected with the base 31 and disposed at intervals, a first transmission shaft 3515 having two ends respectively passing through the first bearing seat 3513 and the extension plate 332, and a plurality of second transmission shafts 3516 having two ends respectively passing through the second bearing seat 3514 and the extension plate 332, wherein the number of the transmission gears 3512 is N-1, one of the first transmission shafts 3515 is connected with the power assembly 353, and N is an integer greater than 2.

In this embodiment, the first transmission shaft 3515 is a telescopic transmission shaft, so that the distance between the two sliding plates 31 can be adjusted.

The gear set 3511 includes two upper gears and a lower gear in meshed connection, the upper gears are mounted on the shaft of the first edge roller 3331, the lower gears are mounted on the shaft of the second edge roller 3332, and the lower gears are in meshed connection with the transmission gears 412. Here, the upper and lower directions show the directions of the edge press 30 in the operating state.

In this embodiment, the number of the edge pressing members 333 of each edge pressing mechanism 33 is four, and correspondingly, the number of the gear sets 3511 of each gear assembly 351 is four, the upper gears of the four gear sets 3511 are respectively mounted on the shafts of the first edge pressing rollers 331 of the four edge pressing members 33, and the lower gears of the four gear sets 3511 are respectively mounted on the shafts of the second edge pressing rollers 332 of the four edge pressing members 33, and the upper gears and the lower gears drive the first edge pressing rollers 331 and the second edge pressing rollers 332 to rotate.

The number of the gear sets 3511 of each gear assembly 351 is four, the number of the corresponding transmission gears 3512 is three, one transmission gear 3512 is clamped between each two gear sets 3511, and the transmission gears 3512 are in meshed connection with the lower gears on two sides of the transmission gears. Accordingly, the number of the first transmission shafts 3515 is one, the number of the second transmission shafts 3516 is two, and three transmission gears 3512 are respectively mounted on one first transmission shaft 3515 and two second transmission shafts 3516.

For convenience of description and understanding, four gear sets 3511 are respectively divided into a first gear set, a second gear set, a third gear set and a fourth gear set along the conveying direction of the top skin; the three drive gears 3512 are divided into a first drive gear, a second drive gear and a third drive gear, the second drive gear is mounted on the first drive shaft 415, and the first drive gear and the third drive gear are mounted on the two second drive shafts 416 respectively.

The power assembly 353 is connected with the first transmission shaft 3515, and drives a second transmission gear through the first transmission shaft 3515, and the second transmission gear drives the lower gears of the second gear set and the third gear set located at two sides of the second transmission gear. The second gear of the second gear set drives the upper gear of the second gear set and the first transmission gear which are in meshed connection with the second gear set, the first transmission gear drives the lower gear of the first gear set which is in meshed connection with the first transmission gear, and the lower gear of the first gear set drives the upper gear of the first gear set which is in meshed connection with the first transmission gear; the second gear of the third gear set drives the lower gear of the third gear set and the third transmission gear which are in meshed connection with the second gear set, the third transmission gear drives the lower gear of the fourth gear set which is in meshed connection with the third transmission gear, and the lower gear of the fourth gear set drives the upper gear of the fourth gear set which is in meshed connection with the fourth gear set.

The power transmission assembly 352 comprises two couplings 3521 and a connecting shaft 3522 with two ends respectively connected with one ends of the two couplings 3521, and the other ends of the two couplings 3521 are respectively connected with the first transmission shafts 3515 of the two gear assemblies 351.

The power provided by the binder power assembly 353 can be transferred by providing a power transfer assembly 352.

The blank holder power assembly 353 comprises a motor second motor 3531 mounted on the base 31, a second speed reducer 3532 in transmission connection with the second motor 3531, a second driving wheel 3533 mounted on an output shaft of the second speed reducer 3532, a second chain wheel 3534 mounted on the first transmission shaft 3515 and arranged at intervals with the second driving wheel 3533, and a second chain 3535 surrounding the second driving wheel 3533 and the second chain wheel 3534, wherein the second motor 3531 drives the second speed reducer 3532, the second speed reducer 3532 drives the second driving wheel 3533, the second driving wheel 3533 drives the second chain wheel 3534 to rotate through the second chain 3535, and the second chain wheel 3534 drives the first transmission shaft 3515 to rotate.

The second spiral lifter 36 is connected with the first edge roller 3331 to adjust the gap width between the first edge roller 331 and the second edge roller 332, so as to be compatible with welding top skins with different thicknesses, and simultaneously, the welding top skins are convenient to adjust when the clamping plate phenomenon occurs in the operation of the edge pressing machine.

In this embodiment, the total number of the binder parts 333 is 8, 4 binder parts 333 are disposed on each binder mechanism 33, and correspondingly, the number of the second screw lifters 36 is 8, and one second screw lifter 36 is disposed on each binder part 333.

The second adjusting mechanism 37 comprises a support frame 371 and two second rotating screw rods 372 mounted on the support frame 371, the support frame 371 comprises two vertical beams 3711 fixedly connected with the base 31, and cross beams 3722 with two ends fixedly connected with the two vertical beams 3711 respectively, the two second rotating screw rods 372 are mounted on the two vertical beams 3711 respectively, the second rotating screw rods 372 play a role in guiding and positioning, and a welding top skin is clamped between the two side baffle wheels of the second rotating screw rods 372.

The number of the pressing cylinder assemblies 38 is two, and the two pressing cylinder assemblies 38 are installed on the cross beam 3722 at intervals and used for flattening and welding the top skin.

The adjustable blank holder 39 is disposed on a side of the second portion supporting roller 3222 away from the first portion supporting roller 3221, for ensuring the consistency of the blank holder angle of the top skin.

The adjustable edge pressing module 39 includes an installation frame 391 having a receiving space, an edge pressing wheel assembly 392 installed on one side of the installation frame 391 facing the material supporting roller assembly, and a shape correcting assembly 393 received in the receiving space, wherein the installation frame 391 is fixedly connected with the extension plate 332.

The mounting frame 391 includes a bottom plate 3911, a top plate 3912 disposed opposite to the bottom plate 3911, and a vertical plate 3913 mounted on a side surface of the bottom plate 3911 and having both ends connected to the bottom plate 3911 and the top plate 3912, wherein the vertical plate 3913 is provided with an arc-shaped angle adjusting hole.

The number of the edge pressing wheel assemblies 392 is two, and gaps for clamping the top skin are formed in the two edge pressing wheel assemblies 392 at intervals along the length direction of the vertical plate 3913.

The edge pressing wheel assembly 392 comprises an edge pressing bearing seat 3921, an edge pressing bearing 3922, an edge pressing transmission shaft 3923, an edge pressing wheel 3924 and a bearing end cover 39239, wherein the edge pressing bearing seat 3921 is fixedly connected with a bottom plate 3911 or a top plate 3912 of the mounting frame 391, the edge pressing bearing 3922 is mounted on the bearing seat 3921, the transmission shaft 3923 is rotatably connected with the edge pressing bearing 3922, the edge pressing wheel 3924 is sleeved on the transmission shaft 3923 and can rotate together with the transmission shaft 3923, and the bearing end cover 3925 is mounted on the edge pressing bearing seat 3921 and is far away from one end of the edge pressing wheel 3924.

The shape correcting assembly 393 comprises a side pressing shaft 3931, a mounting bearing 3932 sleeved outside the side pressing shaft 3931, a side pressing wheel 3933 sleeved outside the first bearing 3932, a connecting plate 3934 fixedly connected with the side pressing shaft 3931, an adjusting plate 3935 which is far away from the connecting plate 3934 and is perpendicularly bent and extended from one end of the side pressing shaft 3931 to the direction far away from the side pressing wheel assembly 392, and an adjusting piece for connecting the adjusting plate 3935 with the first side plate 3913, wherein the side pressing edge of the top skin is abutted with the side pressing wheel 3933 towards the surface of the bottom plate 3911, one end of the adjusting piece penetrates through the angle adjusting hole and is connected with the adjusting plate 3935, and the adjusting piece can move along the angle adjusting hole so as to change the included angle between the side pressing shaft 3931 and the horizontal plane, and the included angle is the bending angle of the side pressing edge.

The number of the adjusting members is two, the adjusting members comprise bolts and nuts, two screw holes are correspondingly formed in the adjusting plate 3935, one ends of the two bolts penetrate through different positions of the angle adjusting holes to be inserted into the screw holes, and the two nuts are respectively mounted at the other ends of the two bolts to fasten the first side plate 3913 and the adjusting plate 3935.

When the included angle between the side pressure shaft 3931 and the horizontal plane needs to be adjusted, the nut is loosened, the bolt moves along the angle adjusting hole, the bolt drives the adjusting plate connected with the bolt to rotate together, the adjusting plate drives the side pressure shaft 3931 to rotate together, the included angle between the side pressure shaft 3931 and the horizontal plane is changed, when the included angle is a preset bending angle, the nut is installed at the head of the bolt, and the first side plate 3913 is fixedly connected with the adjusting plate 3935.

Preferably, angle scale marks are provided on the vertical plate 3913 corresponding to the angle adjusting holes.

By providing the sizing assembly 393, the consistency of the top skin flange angle is ensured.

The plate shearing machine 40 is a hydraulic pendulum plate shearing machine, and is of the model QC 12Y-4X 3200, and is used for cutting off the welded top skin after edge pressing according to the preset length so as to meet the production requirement.

The blanking conveyor line 50 is used for conveying the cut welding top skin to the next station.

The foregoing is a further detailed description of the invention in connection with specific preferred embodiments, and is not intended to limit the practice of the invention to such description. It will be apparent to those skilled in the art that several simple deductions and substitutions can be made without departing from the spirit of the invention, and these are considered to be within the scope of the invention.

Claims (8)

1. The utility model provides a top skin processingequipment, its characterized in that is along feeding to ejection of compact direction, including establishing decoiler, welding host computer, beading machine, plate shearing machine and the unloading transfer chain that connect the setting in the past, wherein:

the welding host is used for welding two first top skins and second top skins which are arranged side by side at intervals and are provided with welding seams, and comprises a supporting mechanism, a conveying roller way, a first driving mechanism and a welding mechanism, wherein the conveying roller way, the first driving mechanism and the welding mechanism are arranged on the supporting mechanism; wherein: the conveying roller way is divided into a left conveying roller way for conveying the first top skin and a right conveying roller way for conveying the second top skin along a first direction, and comprises a plurality of first conveying rollers, a plurality of second conveying rollers and a plurality of third conveying rollers which are sequentially arranged along a second direction, wherein the first direction and the second direction are mutually perpendicular; the first driving mechanism is connected with the second conveying roller and used for driving the second conveying roller to rotate; the welding mechanism is arranged above the second conveying roller and is used for welding the welding seam to obtain a welding top skin;

the support mechanism comprises a base, two groups of symmetrically arranged first support pieces, two groups of symmetrically arranged second support pieces and two groups of symmetrically arranged third support pieces, and a top frame which is arranged opposite to the base at intervals, wherein the two groups of symmetrically arranged first support pieces extend from the upper surface of the base to the direction away from the base, the two ends of the top frame are respectively connected with the two groups of second support pieces, the base comprises a first base for supporting the first support pieces, the second support pieces and the third support pieces, and a second base which is arranged side by side with the first base, and the first drive mechanism is arranged on the second base;

The middle positions of the first clamping rollers and the second clamping rollers of the plurality of second conveying rollers are respectively provided with a gap, and the gaps are matched with the welding seams; the welding mechanism comprises a wire reel, a wire feeder, two groups of compaction assemblies arranged at intervals and a laser welding head arranged between the two compaction assemblies and positioned above the gap, wherein the wire reel is used for storing welding wires, the wire feeder is used for conveying the welding wires of the wire reel to the welding seam, the laser welding head is used for emitting laser beams and projecting the laser beams to the welding seam, the compaction assemblies comprise bearings connected with the top frame and sleeved on the central shaft of a first clamping roller of a first conveying roller, connecting supports arranged on the inner sides of the bearings and connected with the bearings, and inclined pressing plates arranged on one sides of the connecting supports far away from the bearings, and the inclined pressing plates are used for pressing the top skin;

the number of the uncoilers is two, wherein one uncoiler is used for conveying the first top skin to a left-side conveying roller way, and the other uncoiler is used for conveying the second top skin to a right-side conveying roller way;

The edge pressing machine is positioned at one end of the third conveying roller far away from the uncoiling machine and is used for pressing edges of two ends of the welding top skin, and comprises a base, a material supporting roller assembly arranged on the base, two edge pressing mechanisms respectively arranged on two sides of the material supporting roller assembly, and a second driving mechanism used for driving the edge pressing mechanisms to work, wherein the edge pressing mechanisms are used for pressing the edges of the welding top skin into a target shape;

the plate shearing machine is used for cutting off the welded top skin after edge pressing according to a preset length to obtain a target welded top skin;

and the blanking conveying line is used for conveying the cut target welding top skin to the next station.

2. The roof skin finishing device of claim 1, wherein the unwinder includes a frame, a feed drum mounted to the frame, an expansion sleeve mounted to a center of the feed drum, and a pneumatic press roll assembly connected to the frame and abutting a surface of the feed drum.

3. The roof skin finishing device of claim 1, wherein the number of the second transporting rollers is two, and the first driving mechanism comprises a central shaft, a central gear, two driven gears and a welding power assembly, wherein the central shaft is arranged between the two second transporting rollers and mounted on the second supporting member, the central gear is mounted on the central shaft, the driven gears are meshed with the central gear, and the welding power assembly is used for driving the central shaft to rotate; each second conveying roller corresponds to a group of driven gears, each group of driven gears comprises a first driven gear arranged on the central shaft of a first clamping roller of the second conveying roller and a second driven gear arranged on the central shaft of the second clamping roller of the second conveying roller, the second driven gears are in meshed connection with the central gear, the first driven gears are in meshed connection with the second driven gears, the welding power assembly drives the central shaft to rotate, the central shaft drives the central gear to rotate, the central gear drives two second driven gears which are arranged on two sides of the central gear and are in meshed connection with the central gear to rotate, and the second driven gears drive the first driven gears which are in meshed connection with the second driven gears to rotate, so that the second conveying roller is driven to rotate.

4. The top skin finishing device of claim 3, wherein the welding power assembly comprises a first motor fixed on the second base, a first speed reducer in driving connection with the first motor, a first driving wheel mounted on an output shaft of the first speed reducer, a first sprocket mounted on the second base and arranged at intervals with the first driving wheel, and a first chain surrounding the first driving wheel and the first sprocket, wherein the first sprocket is mounted on the central shaft and arranged at intervals with the central gear, the first motor drives the first speed reducer, the first speed reducer drives the first driving wheel, the first driving wheel drives the first sprocket to rotate through the first chain, and the first sprocket drives the central shaft to rotate.

5. The top skin finishing device of claim 1, wherein the welding host further comprises an adjustment mechanism group corresponding to the first transport roller and the third transport roller, the adjustment mechanism group comprises two symmetrically arranged first adjustment mechanisms, the first adjustment mechanisms comprise a mounting post fixedly connected with the first base, and a first rotating screw rod arranged on the mounting post, and two top skins are clamped between the two first rotating screw rods of the adjustment mechanism group.

6. The top skin finishing device according to claim 1, wherein the edge pressing mechanism comprises a sliding plate slidably mounted to the base, an extension plate extending from the sliding plate in a direction away from the base, and a plurality of edge pressing members provided at intervals to the extension plate; the edge pressing component comprises a first edge pressing roller and a second edge pressing roller, gaps for clamping the top skin are formed between the first edge pressing roller and the second edge pressing roller at intervals, and the second driving mechanism is installed on the sliding plate and connected with the first edge pressing roller and the second edge pressing roller.

7. The top skin processing device of claim 6, wherein the edge press further comprises a hand-operated screw assembly for driving the sliding plate to slide, the hand-operated screw assembly comprises a screw unit, two sliding rails respectively arranged on two sides of the screw unit, and a sliding block which is arranged on the sliding rails and can slide along the sliding rails, and the sliding block is fixedly connected with the sliding plate.

8. The top skin finishing device according to claim 6 or 7, wherein the second driving mechanism comprises a blank holder power assembly for supplying power, two gear assemblies provided corresponding to the two blank holder mechanisms, and a power transmission assembly having both ends respectively connected to the two gear assemblies to transmit power, the blank holder power assembly being connected to one of the gear assemblies and transmitting power to the other gear assembly through the power transmission assembly;

The gear assembly comprises N gear sets, transmission gears, a first transmission shaft and a second transmission shaft, wherein the transmission gears are positioned between two adjacent gear sets and are in meshed connection with the two adjacent gear sets, the first transmission shaft and the second transmission shaft are arranged on the base, the gear sets comprise two first gears and second gears which are in meshed connection, the first gears are arranged on the shaft of the first edge pressing roller, the second gears are arranged on the shaft of the second edge pressing roller, the second gears are in meshed connection with the transmission gears, the number of the transmission gears is N-1, one transmission gear is connected with the power assembly, and N is an integer larger than 2; n-1 transmission gears are respectively arranged on the first transmission shaft and the second transmission shafts; the first transmission shaft is a telescopic transmission shaft, and one of the first transmission shafts of the gear assembly is connected with the power assembly.