CN212682129U

CN212682129U - Automobile battery box production line

Info

Publication number: CN212682129U
Application number: CN202021690246.3U
Authority: CN
Inventors: 刘海龙; 王秋峰; 高朋飞; 李阳扶; 周万山
Original assignee: Lingyun Southwest Industrial Co ltd
Current assignee: Lingyun Southwest Industrial Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-03-12
Anticipated expiration: 2030-08-13

Abstract

The utility model relates to an automobile battery box production line, which comprises an uncoiler, uncoiling and discharging a metal plate coiled material; the punching leveling machine is used for leveling the metal plate and punching a positioning hole for cutting and positioning; the rolling unit is used for forming a forming roll line and rolling and forming the metal plate into a hollow beam structure; a first welding station for welding and shaping the inner supporting wall of the hollow beam; a second welding station, welding the closed part of the sunken part to finish the final shaping of the hollow beam; the shaping roller set is used for shaping the outer contour of the hollow beam; the cutting machine cuts off the metal plate at the positioning hole to complete the forming of the battery box; and the material receiving platform is used for collecting the battery box with the hollow beam type structure. The invention can form the battery box into an integrated hollow beam structure, so that the battery box has high strength and impact resistance to meet the requirements of vehicle vibration and protection, the whole production line has small occupied area and simple and convenient forming process, and is beneficial to reducing the production cost and improving the product quality.

Description

Automobile battery box production line

Technical Field

The utility model relates to an auto-parts production technical field, concretely relates to car battery case production line.

Background

In a modern automobile construction system, various support beams have certain standard requirements on strength and impact resistance so as to meet the requirements on supporting other structures of the automobile, and meanwhile, in order to improve the strength-weight ratio of the automobile and reduce the weight of the automobile as far as possible on the premise of ensuring the strength of the automobile, the method has higher requirements on the forming process or method of the beams. At the same time, the process and method of manufacturing the beams preferably minimizes unwanted product dimensional and quality variations, while minimizing manufacturing costs, optimizing manufacturability, and minimizing scrap. In the forming process of the beam, how to minimize the manufacturing cost by an efficient process, optimize the product, make the material utilization rate higher, and improve the applicability of the beam have become the most important starting points for the current industry competition, for example, in terms of the floor area of the forming devices and the cooperation among the forming devices, the manufacturing cost and the product quality are directly influenced.

For some specific automobile structures, such as battery boxes, the requirements on meeting vehicle vibration and protection are also high, the existing automobile battery boxes are of a hollow structure formed by splicing a plurality of formed shells after welding, due to the fact that splicing and welding points are more, structural continuity and integrity are poor, the automobile battery boxes only can be used for simply supporting and protecting, strength of the automobile battery boxes has certain limitation, deformation is easy to occur after strong impact, detection on welding lines is needed irregularly in the using process, the using cost of a vehicle is further increased, adverse effects can be caused to the overall structure of the vehicle in the later period, and therefore in order to guarantee the strength and the impact resistance of the battery boxes, manufacturing and forming can be carried out according to a beam forming process, the automobile battery boxes can achieve high strength and impact resistance similar to the beam, but corresponding application or forming methods are few at present, or not yet clear.

SUMMERY OF THE UTILITY MODEL

To exist not enough among the prior art, the utility model provides an automobile battery case production line can make the battery case have high strength and shock resistance with the hollow beam structure of battery case shaping formula as an organic whole to satisfy vehicle vibration and protection requirement, whole production line area is little, and the shaping flow is simple and convenient, is favorable to reduction in production cost and promotes product quality.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an automobile battery box production line comprises the following devices:

and the uncoiler uncoils and discharges the metal plate coiled material.

And the punching evener is used for levelling the metal plate and punching a positioning hole for cutting and positioning.

The rolling unit is used for forming a rolling line and rolling and forming a metal plate into a hollow beam structure, wherein a first bulge is formed by rolling the middle part to one side edge of the metal plate, a second bulge is formed by rolling the middle part to one side of the positioning hole of the metal plate, the first bulge and the second bulge are opposite in direction, a concave part is formed by rolling the first bulge, two side walls of the concave part are used as inner supporting walls of the hollow beam, and the second bulge seals the concave part and forms the hollow beam with the cross section in an L shape with the first bulge.

And the first welding station is used for welding and shaping the inner supporting wall of the hollow beam.

And a second welding station, wherein the closed part of the sunken part is welded to finish the final shaping of the hollow beam.

And the shaping roller set is used for shaping the outer contour of the hollow beam.

And the cutting machine cuts off the metal plate at the positioning hole to complete the forming of the battery box.

And the material receiving platform is used for collecting the battery box with the hollow beam type structure.

Furthermore, the forming roller comprises a first bulge rolling section and a second bulge rolling section, the first bulge rolling section and the second bulge rolling section are formed by sequentially arranging a plurality of rolling wheel frames, the first bulge rolling section is used for forming a first bulge, and the second bulge rolling section is used for forming a second bulge.

Further, the first protruding rolling section is composed of a forming section and a bending section, the bending section rolls the middle part of the metal plate to one side edge of the metal plate to form a straight edge and a transverse edge which are perpendicular to each other, the straight edge is perpendicular to an undeformed part of the metal plate and is fixed to the straight edge, the forming section rolls the transverse edge to form a U-shaped concave part, the transverse edge is rolled by a rolling wheel to enable a protruding end of the U-shaped concave part to be attached to the undeformed part of the metal plate, and two side walls of the U-shaped concave part form an inner supporting wall of the hollow beam so as to improve the compressive strength and the impact resistance of the hollow beam.

Furthermore, the second protruding rolling section bends the middle part of the metal plate to the side of the positioning hole to form a first bending edge opposite to the direction of the bending section in the first protrusion, and bends the first bending edge to form an L-shaped edge, so that the vertical edge of the L-shaped edge is parallel to the first protruding bending section, the vertical edge of the L-shaped edge is bent to form a lap edge, and the lap edge is tightly attached to the transverse edges of the two sides of the U-shaped concave part to seal the opening of the U-shaped concave part.

Furthermore, the first welding station is arranged between the first convex rolling section and the second convex rolling section so as to weld the convex end of the U-shaped concave part and the undeformed part of the metal plate in a spot welding manner and fix the support wall.

Further, the second welding station is arranged at the tail end of the second protruding rolling section, so that the lap joint edge and the transverse edges on two sides of the U-shaped depressed part are subjected to laser welding, structures on two sides of the depressed part are drawn together, and the structures on two sides are prevented from collapsing and deforming towards two sides after the depressed part is stressed.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a cooperation of welding station and shaping roller line ball carries out corresponding weldment work immediately in product forming process for the shaping flow is simplified to the product shaping, is favorable to reduction in production cost and promotes product quality.

2. The utility model discloses a but production line integrated into one piece goes out the battery case of hollow beam formula structure, has guaranteed the continuity and the wholeness of battery case structure, and has light in weight, easy fashioned characteristics, and inner structure is stable, and resistance to compression and impact are good.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a first bump-rolling section in the present invention;

FIG. 3 is a schematic structural view of a second crowned roller section according to the present invention;

FIG. 4 is a schematic view of the arrangement of the first and second welding stations of the present invention;

fig. 5 is a schematic cross-sectional view of a battery case according to the present invention.

Reference numerals: 1. an uncoiler; 2. a punching and leveling machine; 3. forming a roller pressing line; 31. a first bump roll section; 311. a forming section; 312. bending sections; 32. a second bump roll section; 4. a first welding station; 5. a second welding station; 6. shaping roller sets; 7. a cutting machine; 8. a receiving platform; 9. a first protrusion; 91. straight sides; 92. transverse edges; 921. a recessed portion; 10. a second protrusion; 101. a first bending edge; 102. an L-shaped edge; 1021. a vertical side; 1022. and (7) overlapping edges.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1-5, an automobile battery box production line comprises an uncoiler 1, a punching and leveling machine 2, a rolling unit, a shaping roller unit 6, a cutting machine 7 and a receiving table 8. The uncoiler 1 uncoils and discharges a metal plate coiled material to the punching and leveling machine 2, the punching and leveling machine 2 levels the metal plate, the metal plate with a certain length is taken as a rolling unit, after a positioning hole for cutting and positioning is punched at the edge of the rolling unit, the metal plate is conveyed to a forming roller pressing line 3 consisting of a rolling unit to be subjected to rolling forming, the metal plate is formed into a battery box with a hollow beam structure, then the outer contour of the hollow beam is subjected to shaping treatment sequentially through a shaping roller set 6 and a cutting machine 7, the metal plate is cut off at the positioning hole, the battery box is formed, and the formed battery box is collected on a material receiving table 8.

The forming roll 3 includes a first embossing roll section 31 and a second embossing roll section 32, as shown in fig. 2, 3, and 5, the first embossing roll section 31 and the second embossing roll section 32 are formed by sequentially arranging a plurality of roll stands, the first embossing roll section 31 is used for rolling the middle of the metal plate to one side edge roll to form a first embossment 9, the second embossing roll section 32 is used for rolling the middle of the metal plate to one side of the positioning hole to form a second embossment 10 with an opposite direction to the first embossment 9, the metal plate is formed into a hollow beam with an L-shaped cross section by rolling, and the structure of the hollow beam is shown in fig. 5.

Specifically, in order to stabilize the internal structure of the hollow beam, make the hollow beam have higher compression resistance and impact resistance, and reduce the deformation probability, the first embossing and rolling section 31 is divided into a forming section 311 and a bending section 312, as shown in fig. 2 and 5, wherein the bending section 312 is used to roll the middle part to one side edge of the metal plate into a straight side 91 and a transverse side 92 which are perpendicular to each other, so that the straight side 91 is perpendicular to the undeformed part of the metal plate and fixes the straight side 91, the forming section 311 is used to roll the transverse side 92 to form a U-shaped recess 921, and the transverse side 92 is rolled by a rolling wheel to make the protruding end of the U-shaped recess 921 closely contact with the undeformed part of the metal plate, so that the two side walls of the recess 921 are directly used as the internal supporting walls of the hollow beam, so that the inside of the hollow beam is supported to resist the external pressure, thereby improving the compression resistance and impact.

In addition, the second protrusion rolling section 32 bends the middle of the metal plate to one side of the positioning hole to form a first bending edge 101 facing opposite to the bending edge 312 in the first protrusion 9, and bends the first bending edge 101 to form an L-shaped edge 102, so that the vertical edge 1021 of the L-shaped edge 102 is parallel to the bending edge 312 of the first protrusion 9, the vertical edge 1021 of the L-shaped edge 102 is bent to form a lapping edge 1022, and the lapping edge 1022 is tightly attached to the transverse edges 92 on two sides of the U-shaped recess 921 to close the opening of the U-shaped recess 921. By closing the opening of the recess 921, i.e. connecting the two sides of the recess 921 by the lateral edge 92, the structure of the two sides of the recess 921 can be prevented from being deformed to the two sides after the recess 921 is pressed.

In the forming process, the forming roll 3 of the present invention is provided with a first welding station 4 and a second welding station 5, wherein the first welding station 4 is used for spot welding the transverse edge 92 and the metal plates on both sides of the recess 921, so as to shape the inner supporting wall; the second welding station 5 is used for laser welding the convex end of the concave part 921 and the undeformed part of the metal plate to shape the peripheral structure of the hollow beam. Considering that if the hollow beam is shaped by welding after shaping, the hollow beam is easy to have secondary deformation, so that a fixing device is additionally added to fix the hollow beam to be shaped again, so as to facilitate welding, reduce production efficiency, and meanwhile, the welding device can only be arranged behind a shaping line, so that the production line is too long, the occupied area is increased, and the production input cost is undoubtedly increased, therefore, as shown in fig. 4, the utility model discloses locate the first welding station 4 between the first bump rolling section 31 and the second bump rolling section 32, namely, carry out spot welding immediately after the protruding end of the U-shaped recess 921 is clung to the undeformed part of the metal plate, so as to shape the inner supporting wall, avoid secondary deformation in the subsequent shaping welding process, the second welding station 5 is located at the end of the second bump rolling section 32, so as to laser weld the overlapping edge 1022 and the transverse edges 92 at both sides of the U-shaped recess 921, on the basis that the internal supporting wall is shaped, the hollow beam can be conveniently integrally shaped, so that the forming process is simplified, the forming speed is increased, and the product quality is improved.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. An automobile battery box production line is characterized by comprising the following devices:

the uncoiler (1) uncoils and discharges the metal sheet coiled material;

the punching and leveling machine (2) is used for leveling the metal plate and punching a positioning hole for cutting and positioning;

the rolling unit is used for forming a rolling line (3) and rolling and forming a metal plate into a hollow beam structure, wherein a first bulge (9) is formed from the middle part to one side edge of the metal plate in a rolling mode, a second bulge (10) is formed from the middle part to one side of the positioning hole in a rolling mode, the first bulge (9) and the second bulge (10) are opposite in direction, a concave part (921) is formed in the first bulge (9) in a rolling mode, two side walls of the concave part (921) serve as inner supporting walls of the hollow beam, and the second bulge (10) seals the concave part (921) and forms the hollow beam with the cross section being L-shaped with the first bulge (9);

a first welding station (4) for welding and shaping the inner supporting wall of the hollow beam;

a second welding station (5) for welding at the closed position of the concave part (921) to finish the final shaping of the hollow beam;

the shaping roller set (6) is used for shaping the outer contour of the hollow beam;

a cutting machine (7) for cutting the metal plate at the positioning hole to complete the forming of the battery box;

and the material receiving platform (8) is used for collecting the battery box with the hollow beam type structure.

2. The automotive battery box production line as set forth in claim 1, wherein: the forming roll line (3) comprises a first embossing roll section (31) and a second embossing roll section (32), the first embossing roll section (31) and the second embossing roll section (32) are formed by sequentially arranging a plurality of roll wheel carriers, the first embossing roll section (31) is used for forming a first embossment (9), and the second embossing roll section (32) is used for forming a second embossment (10).

3. The automotive battery box production line as set forth in claim 2, characterized in that: the first bulge rolling section (31) is composed of a forming section (311) and a bending section (312), the bending section (312) rolls the middle part to one side edge of the metal plate to form a straight edge (91) and a transverse edge (92) which are perpendicular to each other, the straight edge (91) is perpendicular to an undeformed part of the metal plate and fixes the straight edge (91), the forming section (311) rolls the transverse edge (92) to form a U-shaped concave part (921), and a rolling wheel is used for rolling the transverse edge (92) to enable a convex end of the U-shaped concave part (921) to be tightly attached to the undeformed part of the metal plate.

4. A vehicle battery pack production line as claimed in claim 3, wherein: the second bulge rolling section (32) bends the middle of the metal plate to one side of the positioning hole to form a first bending edge (101) opposite to the direction of a bending section (312) in the first bulge (9), the first bending edge (101) is bent to form an L-shaped edge (102), a vertical edge (1021) of the L-shaped edge (102) is parallel to the bending section (312) of the first bulge (9), the vertical edge (1021) of the L-shaped edge (102) is bent to form a lapping edge (1022), and the lapping edge (1022) is tightly attached to transverse edges (92) on two sides of the U-shaped recess (921) to close the opening of the U-shaped recess (921).

5. A vehicle battery pack production line as claimed in claim 3, wherein: the first welding station (4) is arranged between the first bulge rolling section (31) and the second bulge rolling section (32) so as to weld the bulge end of the U-shaped concave part (921) and the undeformed part of the metal plate in a spot welding manner to fix the support wall.

6. The automotive battery box production line as set forth in claim 4, wherein: a second welding station (5) is provided at the tip of the second bump roll section (32) to laser weld the overlapping edge (1022) with the lateral edges (92) of both sides of the U-shaped recess (921).