阅读说明：本技术 一种电梯钣金构件自动化生产线 (Automatic production line for elevator sheet metal components ) 是由 周晓雪 于 2021-11-02 设计创作，主要内容包括：本发明公开了一种电梯钣金构件自动化生产线,用于将板材制作成两侧具有翻边的直形或L形产品构件,所述产品构件的底侧具有若干透孔；包括：平整单元,对板材进行整形,使其平整；折边单元,设置在平整单元后端,对整形平整后的板材进行折边作业制作出翻边；裁切单元,设置在折边单元后端,对折边后的板材进行裁切,按要求裁切长度并加工出透孔,对于L型产品构件需要加工出折弯切角；弯折单元,设置在裁切单元后端,针对L型产品构件制作作业,用于对具有折弯切角的板材从折弯切角的中线处进行弯折,使板材形成L型结构。(The invention discloses an automatic production line for an elevator sheet metal component, which is used for manufacturing a plate into a straight or L-shaped product component with flanges at two sides, wherein the bottom side of the product component is provided with a plurality of through holes; the method comprises the following steps: the flattening unit is used for shaping the plate to flatten the plate; the flanging unit is arranged at the rear end of the leveling unit and is used for flanging the shaped and leveled plate to manufacture a flanging; the cutting unit is arranged at the rear end of the edge folding unit, cuts the folded plate, cuts the length according to requirements, processes through holes and processes bending chamfers for L-shaped product components; and the bending unit is arranged at the rear end of the cutting unit, is used for bending the plate with the bending chamfer from the center line of the bending chamfer aiming at the manufacturing operation of the L-shaped product component, and enables the plate to form an L-shaped structure.)

1. An automatic production line for elevator sheet metal components is used for manufacturing a plate into a straight or L-shaped product component (A) with flanges (A1) at two sides, and the bottom side of the product component (A) is provided with a plurality of through holes (A2); it is characterized by comprising:

a flattening unit (B) for shaping the plate material to flatten the plate material;

the flanging unit (D) is arranged at the rear end of the flattening unit (B) and is used for carrying out flanging operation on the plate after being shaped and flattened to manufacture a flanging (A1);

the cutting unit (C) is arranged at the rear end of the edge folding unit (D) and is used for cutting the folded plate, cutting the plate to a required length and processing a through hole (A2), and processing a bending chamfer angle for the L-shaped product component (A);

and the bending unit (E) is arranged at the rear end of the cutting unit (C), is used for bending the plate with the bending chamfer from the center line of the bending chamfer aiming at the manufacturing operation of the L-shaped product component (A), and enables the plate to form an L-shaped structure.

2. The automatic production line of elevator sheet metal components of claim 1, wherein the leveling unit (B) comprises a support body (B1), a plurality of rotatable lower support rollers (B2) are horizontally arranged on the support body (B1), a first driving device (B3) is arranged to drive the lower support rollers (B2) to rotate, an upper support frame (B4) is arranged right above the support body (B1), a horizontally arranged rotatable upper pressing roller (B5) is arranged on the upper support frame (B4), the upper pressing roller (B5) and the lower support rollers (B2) are in one-to-one pair, a hydraulic telescopic device (B6) is arranged on the upper support frame (B4) to control the upper support frame (B4) to move up and down relative to the support body (B1), a first guide unit (B7) is further arranged on the support body (B1), and the first guide unit (B7) comprises a first support frame (B8) and a second support frame (B8) which are arranged on the support body (B1) and are perpendicular to the lower support roller (B2) (B9) The first support frame (B8) is fixedly arranged, the second support frame (B9) can slide far away or close to the first support frame (B8), a sliding driving device is arranged on the support body (B1) to control the second support frame (B9) to slide, a first roller (B11) which vertically penetrates upwards between two adjacent lower support rollers (B2) is arranged on each of the first support frame (B8) and the second support frame (B9), and a first roller (B11) is rotatably arranged on each of the first support frame (B8) and the second support frame (B9).

3. An automatic production line of elevator sheet metal components as claimed in claim 1, wherein the folding unit (D) comprises a folding support frame (D1), a plurality of folding support rollers (D2) with different specifications are arranged on the folding support frame (D1) along the length direction, a folding press roller (D3) which is opposite to the folding support roller (D2) is rotatably arranged right above the folding support roller (D2), the folding support roller (D2) is provided with a support roller surface (D4), and a flanging roller surface (D5) forming an angle with the supporting roller surface (D4), wherein the angle between the flanging roller surface (D5) and the supporting roller surface (D4) is changed into a change trend of gradually reducing along the arrangement direction of the flanging supporting roller (D2), the flanging press roller (D3) is provided with a profiling roller surface (D6) and a shaping roller surface (D7), the angle between the profiling roller surface (D6) and the shaping roller surface (D7) is consistent with and is kept unchanged with the angle of the flanging (A1) of the product component (A).

4. The automatic production line of elevator sheet metal components of claim 1, wherein the cutting unit (C) comprises a cutting support table (C1), a reciprocating device (C2) is arranged on the cutting support table (C1) along the length direction, a vertical mounting ring (C3) is arranged at the movable end of the reciprocating device (C2), a rotatable support ring (C4) is coaxially arranged on the mounting ring (C3), a support seat (C5) is arranged on the support ring (C4), a laser head (C6) capable of reciprocating up and down on the support seat (C5) is arranged on the support seat (C5), a second driving device (C7) is arranged to control the support ring (C4) to rotate, and a third driving device (C8) is arranged to control the laser head (C6) to reciprocate on the support seat (C5).

5. The automatic production line of elevator sheet metal components of claim 4, wherein a coaxial ring gear (C9) is fixedly arranged on the mounting ring (C3), the second driving device (C7) comprises a driving motor (C10) arranged on the supporting ring (C4), and a transmission gear (C11) meshed with the ring gear (C9) is arranged on an output shaft of the driving motor (C10).

6. The automatic production line of elevator sheet metal components of claim 1, wherein the bending unit (E) comprises a bending platform (E1), a bending support frame (E2) capable of moving up and down is arranged above the bending platform (E1), a constant pressure block (E3) for applying pressure to the bottom side of the sheet material at the center line of the bending cut angle is arranged on the bending support frame (E2), a bending module (E4) lower than the table surface of the bending platform (E1) is arranged on the bending platform (E1), the bending module (E4) is controlled by a fourth driving device (E5) to move up and down, the constant pressure block (E3) presses the bottom side of the sheet material at the center line of the bending cut angle, and the bending module (E4) rises and pushes up the other side of the bottom side of the sheet material at the center line of the bending cut angle to bend the sheet material into an L shape.

7. The automatic production line of the elevator sheet metal component as claimed in claim 1, wherein the rear end of the bending unit (E) is provided with a welding unit (F) for welding a splicing seam (A3) at the bending position of the L-shaped product component (A); the welding unit (F) comprises two industrial robots (F1) and a mounting frame (F2), a longitudinal moving shaft (F3) is horizontally arranged on the mounting frame (F2) along the length direction, two transverse moving shafts (F4) capable of moving in the length direction of the longitudinal moving shaft (F3) are arranged on the longitudinal moving shaft (F3), a mechanical arm (F5) extending downwards is arranged on each transverse moving shaft (F4), a bedplate (F6) and a clamping plate (F7) perpendicular to the bedplate (F6) are arranged at the lower end of the mechanical arm (F5), clamping plates (F7) of the two mechanical arms (F5) are oppositely arranged, a fifth driving device (F8) is arranged to control the movement of the transverse moving shaft (F4), a sixth driving device (F9) is arranged to control the movement of the mechanical arm (F5) on the transverse moving shaft (F4), one industrial robot (F1) is used for placing L-shaped products (6) on and picking up the bedplate (F4934), another industrial robot (F1) is used to operate the welding gun and weld the split joint (A3) at the bend of the L-shaped product component (a).

8. The automatic production line of elevator sheet metal components according to claim 7, characterized in that the rear end of the welding unit (F) is provided with a spraying unit (G) for spraying L-shaped product components (A); the spraying unit (G) comprises a box body (G1) with the front end and the rear end not closed, the longitudinal moving shaft (F3) extends into the box body (G1), first paint spraying devices (G2) capable of moving up and down are arranged on two sides in the box body (G1), and second paint spraying devices (G3) capable of moving back and forth in the length direction are arranged on the bottom side.

9. The automatic production line of elevator sheet metal components as claimed in any one of claims 1-8, wherein an unwinding device (H) is arranged at the front end of the leveling unit (B), the unwinding device (H) comprises a base (H1) and a machine body (H2) arranged on the base (H1), a horizontal rotatable supporting cylinder (H3) is arranged on the machine body (H2), a plurality of supporting plates (H4) are uniformly distributed around the outer side of the supporting cylinder (H3), a first connecting rod (H5) and a second supporting rod (H6) are arranged, one end of the first connecting rod (H5) is hinged on the supporting plate (H4), the other end of the first connecting rod is hinged on the supporting cylinder (H3), one end of the second supporting rod (H6) is hinged on the supporting plate (H4), the other end of the second connecting rod passes through the supporting cylinder (H3) and enables the rod body to be hinged on the supporting cylinder (H3), and a telescopic shaft (H7) which is coaxial with the supporting cylinder (H3) in the supporting cylinder (H3), the end of the second support rod (H6) extending into the support cylinder (H3) is hinged on the telescopic shaft (H7).

10. The automatic production line of elevator sheet metal components of claims 1-8, wherein a second transfer device (J) is arranged between the folding unit (D) and the bending unit (E), the second transfer device (J) comprises a second machine frame (J1), a horizontal support table (J2) is arranged on the second machine frame (J1), baffles (J4) are arranged on two sides of the support table (J2), and a second electromagnet device (J3) capable of moving back and forth along the length direction of the support table (J2) is arranged on the support table (J2).

Technical Field

The invention relates to the field of elevator manufacturing, in particular to an automatic production line for an elevator sheet metal component.

Background

An elevator is a permanent transport device serving a number of specific floors in a building, the cars of which travel in at least two rigid tracks perpendicular to the horizontal or inclined at an angle of less than 15 ° to the vertical. There are also steps, where the tread plates are mounted on a track for continuous operation, commonly known as escalators or moving walkways. A fixed elevator apparatus serving a predetermined floor. The vertical lift elevator has a car that runs between at least two vertical rows of rigid guide rails or guide rails with an angle of inclination of less than 15 °. The size and the structural form of the car are convenient for passengers to access or load and unload goods. It is customary to use elevators as a generic term for vertical transport means in buildings, irrespective of their drive mode.

The main part production of present elevator is processes such as cutting, punching, folding, drilling and the like, the processes are all based on single parts as starting points to carry out process arrangement, the butt joint matching of products and processes cannot be realized, and the problems of more production repetitive work, poorer process continuity, limited production efficiency, higher production cost, larger influence of operation skills and incapability of reaching standardization are caused.

Disclosure of Invention

The invention aims to: the automatic production line for the elevator components is used for automatically producing product components for manufacturing elevator components, and can produce straight shapes and L shapes in the same line. And the standardized implementation is facilitated. The production cost is reduced, the replaceability of parts is high, and the maintenance is facilitated.

In order to achieve the purpose, the invention adopts the following technical scheme:

an automatic production line for elevator sheet metal components is used for manufacturing plates into straight or L-shaped product components with flanges on two sides, and a plurality of through holes are formed in the bottom sides of the product components; the method comprises the following steps:

the flattening unit is used for shaping the plate to flatten the plate;

the flanging unit is arranged at the rear end of the leveling unit and is used for flanging the shaped and leveled plate to manufacture a flanging;

the cutting unit is arranged at the rear end of the edge folding unit, cuts the folded plate, cuts the length according to requirements, processes through holes and processes bending chamfers for L-shaped product components;

and the bending unit is arranged at the rear end of the cutting unit, is used for bending the plate with the bending chamfer from the center line of the bending chamfer aiming at the manufacturing operation of the L-shaped product component, and enables the plate to form an L-shaped structure.

On the basis of the above scheme and as a preferable scheme of the scheme: the leveling unit comprises a supporting body, a plurality of rotatable lower supporting rollers are arranged on the supporting body along the horizontal arrangement, a first driving device is arranged to drive the lower supporting rollers to rotate, an upper supporting frame is arranged right above the supporting body, a rotatable upper pressing roller which is arranged horizontally is arranged on the upper supporting frame, the upper pressing roller and the lower supporting rollers are one-to-one, a hydraulic telescopic device is arranged on the upper supporting frame to control the upper supporting frame to move up and down relative to the supporting body, a first guiding unit is further arranged on the supporting body and comprises a first supporting frame and a second supporting frame which are arranged on the supporting body and perpendicular to the lower supporting rollers, the first supporting frame is fixedly arranged, the second supporting frame can be far away from or close to the first supporting frame to slide, a sliding driving device is arranged on the supporting body to control the second supporting frame to slide, and a vertical upward penetrating mode is arranged on the first supporting frame and the second supporting frame from the position between two adjacent lower supporting rollers The first rollers are all rotatably arranged on the first support frame and the second support frame.

On the basis of the above scheme and as a preferable scheme of the scheme: the flanging unit comprises a flanging supporting frame, a plurality of flanging supporting rollers with different specifications are arranged on the flanging supporting frame along the length direction, a flanging press roller which is opposite to the flanging supporting roller in the first direction is rotatably arranged right above the flanging supporting roller, the flanging supporting roller is provided with a supporting roller surface and a flanging roller surface with a supporting roller surface forming angle, the angle change of the flanging roller surface and the supporting roller surface is a change trend which is reduced step by step along the arrangement direction of the flanging supporting roller, the flanging press roller is provided with a profiling roller surface and a shaping roller surface, and the angle between the profiling roller surface and the shaping roller surface is consistent with the flanging angle of a product component and keeps unchanged.

On the basis of the above scheme and as a preferable scheme of the scheme: the cutting unit comprises a cutting supporting table, a reciprocating motion device is arranged on the cutting supporting table along the length direction, a vertical mounting ring is arranged at the movable end of the reciprocating motion device, a rotatable supporting ring is coaxially arranged on the mounting ring, a supporting seat is arranged on the supporting ring, a laser head capable of performing up-and-down reciprocating motion on the supporting seat is arranged on the supporting seat, a second driving device is arranged for controlling the supporting ring to rotate, and a third driving device is arranged for controlling the laser head to perform reciprocating motion on the supporting seat.

On the basis of the above scheme and as a preferable scheme of the scheme: the mounting ring is fixedly provided with a coaxial ring gear, the second driving device comprises a driving motor arranged on the supporting ring, and an output shaft of the driving motor is provided with a transmission gear meshed with the ring gear.

On the basis of the above scheme and as a preferable scheme of the scheme: the bending unit comprises a bending platform, a bending support frame capable of moving up and down is arranged above the bending platform, a constant pressure block used for applying pressure to the bottom side of the plate at the central line of the bending chamfer is arranged on the bending support frame, a bending module lower than the table top of the bending platform is arranged on the bending platform, the bending module is controlled by a fourth driving device to move up and down, the constant pressure block presses the bottom side of the plate at the central line of the bending chamfer, and the bending module rises and pushes the other side of the bottom side of the plate at the central line of the bending chamfer upwards to bend the plate into an L shape.

On the basis of the above scheme and as a preferable scheme of the scheme: the rear end of the bending unit is provided with a welding unit for welding a splicing seam at the bending part of the L-shaped product component; the welding unit comprises two industrial robots and an installation rack, wherein a longitudinal moving shaft is horizontally arranged on the installation rack along the length direction, two transverse moving shafts capable of moving in the length direction of the longitudinal moving shaft can be arranged on the longitudinal moving shaft, each transverse moving shaft is provided with a mechanical arm extending downwards, a bedplate and a clamping plate perpendicular to the bedplate are arranged at the lower end of each mechanical arm, the clamping plates of the two mechanical arms are oppositely arranged, a fifth driving device is arranged for controlling the transverse moving shafts to move, a sixth driving device is arranged for controlling the mechanical arms to move on the transverse moving shafts, one industrial robot is used for picking up and placing L-shaped product components on the bedplate, and the other industrial robot is used for operating a welding gun and welding a splicing seam at the bent part of the L-shaped product component.

On the basis of the above scheme and as a preferable scheme of the scheme: the rear end of the welding unit is provided with a spraying unit for spraying L-shaped product components; the spraying unit comprises a box body, the front end and the rear end of the box body are not sealed, the longitudinal moving shaft extends into the box body, first coating spraying devices capable of moving up and down are arranged on two sides in the box body, and second coating spraying devices capable of moving back and forth in the length direction are arranged on the bottom side of the box body.

On the basis of the above scheme and as a preferable scheme of the scheme: level the unit front end and be provided with unwinding device, unwinding device includes the base and sets up the organism on the base, be provided with the horizontally can the pivoted on the organism and support a section of thick bamboo, the support section of thick bamboo outside is encircleed the equipartition and is had a plurality of faggings, sets up head rod and second bracing piece, head rod one end articulates in the fagging, and the other end articulates on supporting a section of thick bamboo, second bracing piece one end articulates in the fagging, and the other end passes a supporting section of thick bamboo and makes the pole body articulate on a supporting section of thick bamboo, and the telescopic axle coaxial with a supporting section of thick bamboo in the supporting section of thick bamboo, the tip that the second bracing piece stretched into in the supporting section of thick bamboo articulate on the telescopic axle.

On the basis of the above scheme and as a preferable scheme of the scheme: and a guide device is arranged between the edge folding unit and the cutting unit and comprises two second rollers which are vertically and upwards rotatably arranged on the cutting support platform and positioned on two sides of the cutting support platform.

On the basis of the above scheme and as a preferable scheme of the scheme: and a second transfer device is arranged between the edge folding unit and the bending unit, the second transfer device comprises a second rack, a horizontal support table is arranged on the second rack, baffles are arranged on two sides of the support table, and a second electromagnet device capable of moving back and forth along the length direction of the support table is arranged on the support table.

The invention has the beneficial effects that:

the automatic production line for the elevator components is used for automatically producing product components for manufacturing elevator components, and can produce straight shapes and L shapes on the same line. And the standardized implementation is facilitated. The production cost is reduced, the replaceability of parts is high, and the maintenance is facilitated.

Moreover, the automatic operation is realized, the product standard and quality are unified, and the efficiency is high. The labor intensity of workers is reduced, the production efficiency is improved, and the economic benefit of enterprises is improved.

Drawings

FIG. 1 is a schematic structural view of an automatic production line of an elevator sheet metal component according to the invention;

FIG. 2 is a schematic structural view of a product component of the present invention;

FIG. 3 is a schematic structural diagram of an unwinding device according to the present invention;

FIG. 4 is a schematic view of the construction of the hemming unit portion of the present invention;

FIG. 5 is a schematic view of a cutting unit according to the present invention;

FIG. 6 is a schematic view of the structure of a welding unit portion of the present invention;

FIG. 7 is a schematic structural diagram of a bending unit according to the present invention;

FIG. 8 is a schematic illustration of the structure of a robot arm portion of the present invention;

FIG. 9 is a schematic view of a spray unit of the present invention;

fig. 10 is a schematic structural view of a flat cell portion of the present invention.

In the figure: a product component-A, a flanging-A1, a through hole-A2 and a splicing seam-A3;

the device comprises a leveling unit-B, a support body-B1, a lower support roller-B2, a first driving device-B3, an upper support frame-B4, an upper press roller-B5, a hydraulic telescopic device-B6, a first guide unit-B7, a first support frame-B8, a second support frame-B9 and a first roller-B11;

the cutting unit-C, the cutting support table-C1, the reciprocating motion device-C2, the mounting ring-C3, the support ring-C4, the support seat-C5, the laser head-C6, the second driving device-C7, the third driving device-C8, the ring gear-C9, the driving motor-C10 and the transmission gear-C11;

a flanging unit-D, a flanging supporting frame-D1, a flanging supporting roller-D2, a flanging press roller-D3, a supporting roller surface-D4, a flanging roller surface-D5, a profiling roller surface-D6, a shaping roller surface-D7 and a flanging driving device-D8;

the bending unit-E, the bending platform-E1, the bending support frame-E2, the constant pressure block-E3, the bending module-E4 and the fourth driving device-E5;

a welding unit-F, an industrial robot-F1, a mounting frame-F2, a longitudinal moving shaft-F3, each transverse moving shaft-F4, a mechanical arm-F5, a bedplate-F6, a splint-F7, a fifth driving device-F8, a sixth driving device-F9, a pressure plate-F10, a seventh driving device-F11 and a hydraulic telescopic cylinder-F12;

a spraying unit-G, a box-G1, a first coating material spraying device-G2, a second coating material spraying device-G3 and a conveyor-G4;

unwinding device-H, base-H1, machine body-H2, support cylinder-H3, supporting plate-H4, first connecting rod-H5, second supporting rod-H6 and telescopic shaft-H7;

a guide-I, a second roller-I1;

a second transfer device-J, a second frame-J1, a horizontal support table-J2, a second electromagnet device-J3 and a baffle-J4.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-10, an automatic production line for elevator sheet metal components is used for manufacturing a plate into a straight or L-shaped product component a with flanging a1, ribbing and other characteristics on two sides, and the bottom side of the product component a is provided with a plurality of through holes a 2; the automatic production line for the elevator sheet metal component comprises a leveling unit B, a flanging unit D, a cutting unit C and a bending unit E, wherein the leveling unit B is used for shaping a sheet material to level the sheet material; the flanging unit D is arranged at the rear end of the flattening unit B and is used for flanging the flattened plate to manufacture a flanging A1; the cutting unit C is arranged at the rear end of the edge folding unit D, cuts the folded plate, cuts the length according to requirements, processes a through hole A2 and processes a bending chamfer angle for the L-shaped product component A; and the bending unit E is arranged at the rear end of the cutting unit C, is used for bending the plate with the bending chamfer from the center line of the bending chamfer aiming at the manufacturing operation of the L-shaped product component A and enables the plate to form an L-shaped structure.

The butt joint among the units can be realized automatically by butting the plates output from the upper unit and entering the lower unit when the plates are not separated from the upper unit. And automation is realized.

The flattening unit B is used for shaping and flattening the plate, particularly for facilitating high automation of mass production, the plate for manufacturing the product component A is usually coiled, so that the plate is difficult to deform slightly after being cut, and the flattening unit B is needed; meanwhile, in order to facilitate continuous supply of the plates, the materials can be discharged through the unwinding device H; the unwinding device H is arranged at the front end of the leveling unit B and comprises a base H1 and a machine body H2 arranged on the base H1, a horizontal rotatable supporting cylinder H3 is arranged on the machine body H2, a plurality of supporting plates H4 are uniformly distributed on the outer side of the supporting cylinder H3 in a surrounding mode, a first connecting rod H5 and a second supporting rod H6 are arranged, one end of the first connecting rod H5 is hinged to the supporting plate H4, the other end of the first connecting rod H5 is hinged to the supporting cylinder H3, one end of the second supporting rod H6 is hinged to the supporting plate H4, the other end of the second supporting rod H6 penetrates through the supporting cylinder H3, the rod body of the second supporting rod H3 is hinged to the supporting cylinder H3, a telescopic shaft H7 coaxial with the supporting cylinder H3 is arranged in the supporting cylinder H3, and the end of the second supporting rod H6 extending into the supporting cylinder H3 is hinged to the telescopic shaft H7. The telescopic movement of the telescopic shaft H7 controls the inward contraction or outward expansion of the supporting plate H4. In use, the central hole of the coil of sheet material is inserted on the supporting cylinder H3, then the outer gusset H4 is stretched to place the coil on the unwinding device H, and then the free end is pulled and inserted into the flattening unit B.

Specifically, the leveling unit B comprises a support body B1, a plurality of rotatable lower support rollers B2 are horizontally arranged on a support body B1, a first driving device B3 is arranged to drive a lower support roller B2 to rotate, an upper support frame B4 is arranged right above the support body B1, a horizontally arranged rotatable upper press roller B5 is arranged on the upper support frame B4, the upper press roller B5 and the lower support roller B2 are in one-to-one correspondence, a hydraulic telescopic device B6 is arranged on an upper support frame B4 to control the upper support frame B4 to move up and down relative to the support body B1, a first guide unit B7 is further arranged on the support body B1, the first guide unit B7 comprises a first support frame B8 and a second support frame B9 which are arranged on the support body B1 and are perpendicular to the lower support roller B2, the first support frame B8 is fixedly arranged, the second support frame B9 can slide away from or close to the first support frame B8, and a sliding driving device is arranged on a support body B1 to control the sliding of the second support frame B9, a first roller B11 vertically passing upwards between two adjacent lower support rollers B2 is arranged on each of the first support frame B8 and the second support frame B9, and a first roller B11 is rotatably arranged on each of the first support frame B8 and the second support frame B9. During work, a plate passes through between the lower supporting roller B2 and the upper pressing roller B5, the plate is positioned between the first supporting roller B8 and the first roller B11 on the second supporting roller B9, the plate is leveled by mutually matching the lower supporting rollers B2 and the upper pressing roller B5, the second supporting roller B9 drives the first roller B11 to be close to the first supporting roller B8 in an opposite direction so as to restrain the plate, and the plate is prevented from deviation and distortion.

Specifically, the hemming unit D includes a hemming support frame D1, a plurality of hemming support rollers D2 of different specifications are arranged on the hemming support frame D1 in a longitudinal direction, a pair of hemming rollers D3 is rotatably arranged right above the hemming support roller D2, the hemming support roller D2 has a support roller surface D4 and a hemming roller surface D5 forming an angle with the support roller surface D4, the angle between the hemming roller surface D5 and the support roller surface D4 is changed to a changing trend of gradually decreasing in the arrangement direction of the hemming support roller D2, the hemming roller D3 has a profiling roller surface D6 and a shaping roller surface D7, the angle between the profiling roller surface D6 and the shaping roller surface D7 is consistent with the angle of the hemming a1 of the product member a and is kept constant, the support roller surface D4 and the hemming roller surface D5 of the support roller D2 have a profiling roller surface D6 and a shaping roller surface D7 symmetrically arranged in the directions of the two hemming support frames D1, and the shaping roller surface D7 and the support roller surface D4 have a gap with each other support roller surface, the flanging roller surface D5 is opposite to the profiling roller surface D6 with a gap therebetween, and a flanging driving device D8 is arranged to drive a flanging supporting roller D2 to rotate synchronously. In the process, the shaped and flattened plate passes through the space between the supporting roller D2 and the flanging pressing roller D3, the plate can synchronously rotate under the traction of the flanging supporting roller D2 and move forwards, and the plate is gradually turned upwards under the action of the flanging roller surface D5 in the moving process until a standard flanging A1 is formed.

As shown in fig. 4, the support roller D2 and the hemming press roller D3 are generally arranged in two rows for folding out the both-side hems a1 of the product member a, but a single row of the support roller D2 and the hemming press roller D3 may be arranged for folding out the one-side hems according to product specifications or other design requirements. And the positions of the supporting roller D2 and the folding press roller D3 can be adjusted and moved left and right, for example, when the folding two-side flanging A1 is arranged, the folding specification is adjusted by adjusting the distance between the two rows of supporting rollers D2 and the folding press roller D3, and the processing flexibility of the system is improved.

The cutting unit C comprises a cutting support table C1, a reciprocating motion device C2 is arranged on the cutting support table C1 along the length direction, a vertical installation ring C3 is arranged on the movable end of the reciprocating motion device C2, a rotatable support ring C4 is coaxially arranged on the installation ring C3, a support seat C5 is arranged on the support ring C4, a laser head C6 capable of reciprocating up and down on the support seat C5 is arranged on the support seat C5, a second driving device C7 is arranged to control the support ring C4 to rotate, and a third driving device C8 is arranged to control the laser head C6 to reciprocate on the support seat C5. Panel behind the hem enters into and cuts unit C and alternates at support ring C4, alright cut the operation through removing the laser head to panel, cuts out thru hole A2, bend corner cut or decide, need notice when deciding, need pass through control, make the panel front end enter into and cut unit C's subordinate unit after can decide, otherwise probably lead to panel to drop. When the laser head is arranged specifically, the moving frame which moves up and down is arranged firstly, so that the laser head C3 can move up and down, and then the moving frame is arranged on the transverse shaft C4 moving module to realize left and right transverse movement.

For convenience of control, a coaxial ring gear C9 is fixedly arranged on the mounting ring C3, the second driving device C7 comprises a driving motor C10 arranged on the supporting ring C4, and a transmission gear C11 meshed with the ring gear C9 is arranged on an output shaft of the driving motor C10. The third driving device C8 may be a slide module or an electric slide, and besides, the driving device related to the linear movement in the present invention may be replaced by a slide module or a hydraulic driving cylinder.

The bending unit E comprises a bending platform E1, a bending support frame E2 capable of moving up and down is arranged above the bending platform E1, a constant pressure block E3 used for applying pressure to the bottom side of the plate at the center line of the bending chamfer is arranged on the bending support frame E2, a bending module E4 lower than the table top of the bending platform E1 is arranged on the bending platform E1, the bending module E4 is controlled by a fourth driving device E5 to move up and down, the constant pressure block E3 presses the bottom side of the plate at the center line of the bending chamfer, and the bending module E4 rises and pushes up the other side of the bottom side of the plate at the center line of the bending chamfer to bend the plate into an L shape.

Since the split joint A3 of the L-shaped product component a makes the L-shaped structure unstable, the split joint A3 requires welding to strengthen the structure. While the complete product component a also requires a surface treatment including spraying.

Further, the rear end of the bending unit E is provided with a welding unit F for welding a splicing seam A3 at the bending position of the L-shaped product component A; the welding unit F comprises two industrial robots F1 and a mounting frame F2, wherein a longitudinal moving shaft F3 is horizontally arranged on the mounting frame F2 in the length direction, two transverse moving shafts F4 capable of moving in the length direction of a longitudinal moving shaft F3 are arranged on the longitudinal moving shaft F3, a mechanical arm F5 extending downwards is arranged on each transverse moving shaft F4, a bedplate F6 and a clamp plate F7 perpendicular to the bedplate F6 are arranged at the lower end of the mechanical arm F5, clamp plates F7 of the two mechanical arms F5 are oppositely arranged, a fifth driving device F8 is arranged to control the movement of the transverse moving shaft F4, a sixth driving device F9 is arranged to control the movement of the mechanical arm F5 on the transverse moving shaft F4, one industrial robot F1 is used for picking up and placing an L-shaped product component A on the bedplate F6, and the other industrial robot F1 is used for operating and welding a welding gun 3 at the bent L-shaped product component A. A press plate F10 which can move up and down on a mechanical arm F5 is arranged right above the platen F6, and a seventh driving device F11 is arranged to control the press plate F10 to move up and down. The platen F10 of the single robot arm F5 may interact with the platen F6 to position and secure the L-shaped product pieces a.

Since the welding unit F is welded by an industrial robot, the unit can be adapted not only to the welding of the split joint a3 but also to assembly welding or general welding of other parts by adjustment of a system program.

Furthermore, a spraying unit G for spraying the L-shaped product component A is arranged at the rear end of the welding unit F; the spraying unit G comprises a box G1 with unclosed front and rear ends, the longitudinal moving shaft F3 extends into the box G1, first paint spraying devices G2 capable of moving up and down are arranged on two sides in the box G1, and second paint spraying devices G3 capable of moving back and forth in the length direction are arranged on the bottom side of the box G1. A conveyor G4 is provided below the second paint spraying apparatus and is conveyed along the longitudinal direction of the box G1. Then, the robot arm F5 can be moved up and down telescopically, and the telescopic hydraulic telescopic cylinder F12 controls. The robot arm F5, which is telescopically movable up and down, can achieve the purpose of lightly placing the sprayed L-shaped product components a on the conveyor G4 and conveying them outwards. Meanwhile, the conveyor G4 can also be used for placing small pieces during spraying, so that the small pieces are flatly laid on the conveyor G4 for spraying.

During operation, the L-shaped product component A can be placed on the bedplate F6 through the industrial robot, then the movable transverse shaft F4 enables the two clamping plates F7 to be close to each other to position the L-shaped product component A, and automatic welding is carried out through the industrial robot after the L-shaped product component A is positioned. Based on the above scheme, the L-shaped product component a can be held by the robot arm F5 into the magazine G1 and sprayed by the first paint spraying device G2 and the second paint spraying device G3 in cooperation with each other to spray the L-shaped product component a.

Further, a guide device I is arranged between the folding unit D and the cutting unit C, the guide device I comprises a second roller I1, and the second roller I1 comprises two rollers which are vertically upwards and rotatably arranged on the cutting support table C1 and located on two sides of the cutting support table C1. Can be through guider I restraint be about to get into the panel that cuts unit C, play the effect of further location restraint, further ensure the machining precision.

In order to facilitate smooth proceeding of the whole automation process and optimize perfect butt joint of an upper sequence station and a lower sequence station, the automatic production line of the elevator sheet metal component is provided with a second transfer device J for assisting transfer of cut plates, the second transfer device J is arranged between a cutting unit C and a bending unit E and comprises a second rack J1, a horizontal support platform J2 is arranged on the second rack J1, two sides of the support platform J2 are provided with baffle plates J4, and a second electromagnet device J3 capable of moving back and forth along the length direction of the support platform J2 is arranged on the support platform J2. The sheet material output from the upper station can be sucked by the second electromagnet device J3 and dragged to move and be butted with the bending unit E. The second transfer device J is provided with a baffle J4, and the plate in the second transfer device J is subjected to flanging operation, so that the position of the plate is restrained by the baffle J4, and the positioning is facilitated to ensure that the bending unit E can smoothly bend the plate.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.