CN112045070B

CN112045070B - Edge covering device

Info

Publication number: CN112045070B
Application number: CN202010771272.7A
Authority: CN
Inventors: 曹江怀; 王玉成; 吴勇彪
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-11-30
Anticipated expiration: 2040-08-04
Also published as: CN112045070A

Abstract

The invention provides a hemming device which comprises a supporting table for supporting the outer plate surface of a covering part outer decoration plate A, wherein the supporting table is arranged on a base, the middle section of a swing arm component is hinged on the base, a driving mechanism is hinged with the swing arm component, the swing arm component is provided with a press roller or a wheel which turns over a convex part A1 extending towards the outside of the edge at the boundary of the covering part outer decoration plate A, the base is provided with a swing guide curved surface for guiding the swing arm component to drive the press roller or the wheel to swing, the base is provided with a straight guide surface for guiding the shaft core of the press roller or the wheel to translate, and a shaft core hinged with the swing arm component, the shaft core of the press roller or the wheel, the curvature shaft core of the swing guide curved surface and the straight guide surface are arranged in parallel. The edge covering operation in a narrow space area is realized, and the connection of the inner plate and the outer plate in a narrow space is realized.

Description

Edge covering device

Technical Field

The present invention belongs to a connecting structure of plate-like members of an automobile and a connecting device.

Background

In the prior art, a triangular area is generally arranged at the front end part of a vehicle window of a left front vehicle door and a right front vehicle door for installing an external rearview mirror, the lower boundary of the part is the upper edge of a door outer plate, a reinforcing plate is generally arranged on the inner side plate surface at the edge of the door outer plate in order to ensure the neat appearance and strength of the door outer plate at the position, and because the distance between the reinforcing plate and the door outer plate is small, generally about 20mm, the door outer plate and the reinforcing plate are connected in a welding mode, the attractive effect is difficult to ensure due to thermal deformation; secondly, the welding connection mode in such a narrow space is difficult to realize.

Disclosure of Invention

The invention aims to provide a method for binding an automobile covering part so as to replace the conventional mode of welding and connecting a reinforcing plate.

In order to realize the purpose, the invention adopts the following technical scheme: a method for connecting the edge of the external decorative plate A of car cover features that the convex part A1 is extended outside the edge of external decorative plate A, and the convex part A1 is turned over to cover the edge of internal reinforcing plate B.

It is still another object of the present invention to provide a hemming device which can perform a hemming work at a narrow space area to achieve a connection between an outer trim panel of a cover member and a reinforcement panel at an inner side thereof.

The realization scheme of the purpose is as follows: a device of borduring which characterized in that: the swing arm assembly is provided with a compression roller or a wheel which guides the swing arm assembly to drive the compression roller or the wheel to swing, the base is provided with a straight guide surface which guides the shaft core of the compression roller or the wheel to translate, and a shaft core, a shaft core of the compression roller or the wheel, a curvature shaft core of the swing guide surface and the straight guide surface which are hinged and connected with the swing arm assembly are all arranged in parallel;

the side vertical edge and the lower end edge of the vertical plate on one side of the base are provided with arc-shaped transition edges to form a swinging guide curved surface, a pin roller arranged between the groove walls of the lower end of the swinging arm body close to the groove opening is positioned in the horizontal direction and is parallel to the shaft core of the compression roller or the wheel, and the pin roller forms a displacement motion for guiding the compression roller or the wheel to swing when being attached to the swinging guide curved surface.

By the connecting method and the realizing device provided by the invention, the edge covering operation is realized in a narrow space region, the connection of the inner plate and the outer plate in a narrow space is realized, the conventional method of welding connection is replaced, the connection quality problems of thermal deformation and the like caused by welding are also avoided, the mechanism is convenient and reliable to operate in the narrow space region, and the connection of the to-be-connected parts is firm and the cost is saved.

Drawings

FIG. 1 is a schematic perspective view of a door according to the present invention;

FIGS. 1a and 1b are schematic diagrams of the state of the edge covering process at the cut-away position A in FIG. 1;

FIGS. 2, 3 and 4 are schematic perspective views of the working process of the device provided by the present invention;

FIGS. 5, 6 and 7 are schematic diagrams of the working process of the device provided by the invention respectively;

FIG. 8 is a schematic view of a side groove wall of the swing arm body hidden from view in the position shown in FIG. 6;

fig. 9 is a schematic view of the structure of the cantilever.

Detailed Description

Example 1

Referring to fig. 1, 1a and 1B, in the hemming connection method of the automobile panel, a tab a1 extending outside the edge is provided at the boundary of the panel outer panel a, and the tab a1 is folded and enclosed at the edge of the inner reinforcing plate B.

In specific implementation, a lug part A1 extending towards the outside of the plate edge is reserved at the edge of the covering part outer decoration plate A, the plate edge of the reinforcing plate B and the edge of the covering part outer decoration plate A can be in a mutually flush position, and then the lug part A1 is turned over to be included at the edge of the reinforcing plate B in a pressing manner. Therefore, the connection of the edges of the outer decorative plate A and the outer decorative plate A is conveniently realized, the connection in a welding mode is not needed, the condition of thermal deformation of the plate surface of the outer decorative plate A of the covering part is avoided, and the difficult problem that a welding gun is difficult to weld is also avoided. The most typical part of the vehicle is the rearview mirror installation part of the left and right front doors, the rearview mirror is usually a plate body part which is arranged on the door inner plate C and is reserved and higher than the door outer plate A, and the door outer plate is connected with the built-in reinforcing plate to ensure the facing function and the proper strength of the door outer plate, so the welding connection mode adopted by the connection of the door outer plate and the reinforcing plate is difficult for a vehicle door manufacturer all the time. The scheme of folding and turning over the edge cover provided by the invention thoroughly changes various defects of welding connection.

In order to ensure the reliability of connection, the edge of the reinforcing plate B is provided with a recess or a notch or a hole B1, and the tab part A1 is pressed at the position of the recess or the notch or the hole B1. Therefore, no matter in the up-down direction or the vehicle length direction, the connection between the two realizes reliable positioning or mutual limiting.

Preferably, the method is particularly suitable for edge-covering connection of panel parts at the installation position of the rearview mirror, the covering part outer decoration plate A is a door outer plate A, the lug parts A1 are arranged on the door outer plate corresponding to the lower side of the installation position of the rearview mirror, and a plurality of the lug parts A1 are arranged at intervals in the vehicle length direction and are usually 3-5. It should be noted that the projecting dimension of the tab portion a1 is smaller than the distance between the door outer panel a and the mirror mounting plate, i.e., the door inner panel C.

As can be seen from the process shown in fig. 1a and 1b, the tab portion a1 is first folded over and then folded over and pressed together.

Example 2

As shown in fig. 2 to 7, the edge covering device includes a support table 10 for supporting the outer panel surface of the cover member outer panel a, the middle section of the swing arm assembly 20 is hinged to the base 30, the driving mechanism 40 is hinged to the swing arm assembly 20, the swing arm assembly 20 is provided with a pressing roller or a wheel 50 for turning over the protruding piece portion a1 extending to the outside of the edge at the boundary of the cover member outer panel a, the base 30 is provided with a swing guide curved surface 60 for guiding the swing arm assembly 20 to drive the pressing roller or the wheel 50 to swing, the base 30 is provided with a straight guide surface 70 for guiding the axial core of the pressing roller or the wheel 50 to translate, and the axial core of the driving mechanism 40 hinged to the swing arm assembly 20, the axial core of the pressing roller or the wheel 50, the curvature axial core of the swing guide curved surface 60, and the straight guide surface 70 are all arranged in parallel.

In the above solution, the pressing roller or wheel 50 performs the folding and rolling actions on the tab portion a1 until the tab portion a1 is pressed on the reinforcing plate B, and the two are reliably connected. The swing guide curved surface 60 and the straight guide surface 70 mainly complete the guide and limit functions of the movement track of the press roller or the wheel 50, and ensure that the movement track of the press roller 50 is matched with the narrow space of the operation area, so the diameter of the press roller 50 is usually slightly smaller than the narrow space of the operation area, thus not only ensuring that the press roller 50 can reach the operation space, but also ensuring that the pressed lug part A1 keeps a good attachment state and avoiding the opening phenomenon at the pressed opening; of course, the pressure applied to the tab portion a1 by the press roller 50 during the return stroke is gradually reduced to completely separate from the roll pressing, thereby preventing the opening of the nip.

In order to ensure the reliable support of the rolling position of the press roller 50, the top of the support table 10 is provided with a support surface 11, the support surface 11 is supported at the boundary of the door outer plate A at the rearview mirror installation position of the door body in a flat state, this border department corresponds and is provided with tab portion A1, swing arm subassembly 20 includes swing arm body 21, swing arm body 21 is whole to be the cell type and the round pin axle 211 that sets up between the cell wall that is close to the notch department in its middle part is located the horizontal direction, round pin axle 211 is arranged in the bar hole 311 of seting up on the riser 31 of base 30 one side in, the direction of lining up of bar hole 311 is the level to and the hole length direction is upper and lower direction, the position that has arranged bar hole 311 on the riser 31 is located the groove cavity of swing arm body 21, compression roller 50 is located the top of bar hole 311, round pin axle 211, the axle core that actuating mechanism 40 and swing arm subassembly 20 articulated connection, the axle core of compression roller 50, the camber axle core and the straight guide face 70 of swing guide curved surface 60 all are located the horizontal direction and parallel arrangement each other.

The above-mentioned scheme provides a preferred swing arm assembly 20 and a construction scheme for realizing swing motion thereof, the swing guide curved surface 60 is set as a motion track of an initial stage provided by the swing motion of the swing arm body 21, and considering that an initial included angle between the covering piece outer decoration plate a and the lug part a1 is slightly larger than 90 °, therefore, the swing motion of the swing arm body 21 is beneficial to firstly turning over the lug part a1, and when the turning over is carried out until the initial included angle between the door outer plate a and the lug part a1 is smaller than 90 °, rolling can be carried out, that is, the straight guide surface 70 plays a track guide role in a rear stage process. The swing arm body 21 adopts a groove-shaped structure, which is beneficial to arranging and installing the pin shaft 211 and matching with the vertical plate 31 of the base 30.

As shown in fig. 8, after hiding one side groove wall of the swing arm body 21, the contour of the swing guide curved surface 60 and the matching relationship between the swing guide curved surface and the pin roller 212 can be completely shown, specifically, it is preferable that an arc-shaped transition edge is formed between the side vertical edge and the lower end edge of the vertical plate 31 on one side of the base 30 to form the swing guide curved surface 60, the pin roller 212 arranged between the groove walls of the lower end of the swing arm body 21 near the groove opening is positioned in the horizontal direction and is parallel to the axis of the pressure roller 50, and the pin roller 212 forms the motion track for guiding the pressure roller 50 to swing when being attached to the swing guide curved surface 60.

Preferably, the flat guide surface 70 is located between the support surface 11 and the strip hole 311 on the support table 10, and when the roller 213 on the swing arm body 21 moves in contact with the flat guide surface 70, the core of the press roller 50 is translated parallel to the support surface 11. As shown in the figure, the axes of the pin roll 212, the pin roll 211, the roll 213 and the press roll 50 arranged from bottom to top are coplanar as a whole, and the coplanar is not strictly coplanar in mathematical sense, but the axes are all short from a certain plane, so that the structure is extremely compact as a whole, and the distance between the straight guide surface 70 and the support surface 11 on the support table 10 is short, so that the short distance between the roll 213 and the press roll 50 has a significant weakening or reducing effect on the deformation displacement caused by the bending moment effect of the cantilever arm 24 while ensuring that the respective movement tracks of the roll 213 and the press roll 50 are realized; in addition, the pin shaft 211 is arranged at the middle section of the swing arm body 21, the pin roller 212 and the press roller 50 are respectively arranged at the upper part and the lower part, so that the small-angle swing of the swing arm body 21 can be ensured to obtain the movement stroke required by the press roller 50, and the driving stroke of the driving mechanism is relatively short, so that the action response of the mechanism or the component in the device is very quick.

Of course, it is convenient to select the air cylinder as the driving mechanism, and the preferable scheme is as follows: the swing arm body 21 is provided with a swing arm 22 which is hinged with the end part of a cylinder piston rod 41 forming the driving mechanism 40, namely the cylinder 40, through a first hinge shaft 221, a second hinge shaft 222 is hinged with the cylinder body and the base 30, and the first hinge shaft 221 and the second hinge shaft 222 are arranged in parallel with the press roller 50.

The upper portion of swing arm body 21 is connected with upper sloping arm 23, and the suspension end of upper sloping arm 23 is connected with overhanging arm 24, has adjusting pad 25 between upper sloping arm 23 and overhanging arm 24, and the connecting hole between upper sloping arm 23 and overhanging arm 24 sets up three groups at least. By adopting the oblique scheme, the upper oblique arm 23 and the overhanging arm 24 are arranged, so that the pressing roller 50 can be ensured to obtain a required movement track on the premise of avoiding the interference between the swing arm rod and the vehicle door body. The at least three groups of connecting holes between the upper inclined arm 23 and the overhanging arm 24 mean that the upper inclined arm 23 and the overhanging arm 24 are both provided with more than three connecting holes, so that the stability of the overhanging direction and the adjustment of the overhanging length of the overhanging arm 24 can be ensured.

The cantilever arm 24 is in the shape of a bent rod with an included angle of 120 to 150 degrees formed by a front short arm 241 and a rear long arm 242, and the press roller or wheel 50 is arranged at the front end of the front short arm 241. The preferred shape of the cantilevered leg 24 is selected to ensure that the pressing roller 50 has a sufficient displacement stroke when the pressing roller 50 comes into contact with the tab portion a1 and starts to be rolled, i.e., the length of the front short leg 241 does not need to be excessively long, thereby ensuring the required stroke of the pressing roller 50.

The working process of the invention is briefly described as follows:

as shown in fig. 5, 6 and 7, when the air cylinder 40 constituting the driving mechanism is in an air intake state, the air cylinder piston rod 41 drives the swing arm assembly 20 to realize upward displacement and right-clockwise swing under the limit action of the pin shaft 211, the strip-shaped hole 311, the pin roller 212 and the swing guide curved surface 60, and the press roller 50 keeps clearance fit with the door inner plate C when reaching the highest position in the up-down direction, so as to avoid the interference phenomenon caused by the contact between the two; the cylinder piston rod 41 continues to rise, the roller 213 is contacted with the straight guide surface 70, and under the common limiting action that the roller 213 is matched with the straight guide surface 70 and the pin shaft 211 is hinged and matched with the strip-shaped hole 311, the roller core of the pressing roller 50 translates, and the pressing and edge covering process of the convex part A1 on the door outer plate A and the reinforcing plate B is completed.

The air cylinder 40 exhausts air without a rod cavity, the air cylinder piston rod 41 begins to fall back, the compression roller 50 is separated from the pressing edge covering position of the door outer plate A and the reinforcing plate B, and the air cylinder piston rod 41 continuously falls back to the swing arm body 21 and falls back to the initial position.

Claims

1. A device of borduring which characterized in that: comprises a supporting platform (10) for supporting the outer plate surface of a covering part outer decoration plate A, the supporting platform (10) is arranged on a base (30), the middle section of a swing arm component (20) is hinged on the base (30), a driving mechanism (40) is hinged with the swing arm component (20), the swing arm component (20) is provided with a compression roller or a wheel (50) which turns over the boundary of the covering part outer decoration plate A and is provided with a lug part A1 extending towards the outside of the edge, a swing guide curved surface (60) for guiding the swing arm component (20) to drive the compression roller or the wheel (50) to swing is arranged on the base (30), and a straight guide surface (70) for guiding the shaft core of the compression roller or the wheel (50) to translate is arranged on the base (30), the shaft core of the driving mechanism (40) and the swing arm component (20) are hinged, the shaft core of the compression roller or wheel (50), the curvature shaft core of the swing guide curved surface (60) and the straight guide surface (70) are all arranged in parallel;

an arc-shaped transition edge is arranged between the side vertical edge and the lower end edge of the vertical plate (31) on one side of the base (30) to form a swinging guide curved surface (60), a pin roller (212) arranged between groove walls of the lower end of the swinging arm body (21) close to the groove opening is positioned in the horizontal direction and is parallel to an axial core of the pressing roller or wheel (50), and the pin roller (212) forms a displacement motion for guiding the pressing roller or wheel (50) to swing when being attached to the swinging guide curved surface (60).

2. A hemming device according to claim 1 wherein: the top of the supporting table (10) is provided with a supporting surface (11), the supporting surface (11) is supported at the boundary of a covering part outer decorative plate A at the rearview mirror installation part of a door body which is in a flat state, the boundary is correspondingly provided with a convex part A1, the swing arm assembly (20) comprises a swing arm body (21), the swing arm body (21) is in a groove shape integrally, a pin shaft (211) arranged between groove walls of the middle part of the swing arm body and close to the groove opening is positioned in the horizontal direction, the pin shaft (211) is arranged in a strip-shaped hole (311) formed in a vertical plate (31) on one side of a base (30), the through direction of the strip-shaped hole (311) is the horizontal direction, the hole length direction is the vertical direction, the part on the vertical plate (31) where the strip-shaped hole (311) is arranged is positioned in the groove cavity of the swing arm body (21), a press roller or a wheel (50) is positioned above the strip-shaped hole (311), the pin shaft (211), a shaft core, a driving mechanism (40) and a shaft core (20) which is hinged and a driving mechanism, The axis of the press roller or wheel (50), the axis of curvature of the swing guide curved surface (60), and the straight guide surface (70) are all disposed in parallel with each other in the horizontal direction.

3. A hemming device according to claim 2 wherein: the straight guide surface (70) is positioned between the support surface (11) on the support platform (10) and the strip-shaped hole (311), and when the roller (213) on the swing arm body (21) is in contact with the straight guide surface (70) to move, the axis of the roller or the wheel (50) is parallel to the support surface (11) to translate.

4. A hemming device according to claim 2 wherein: a supporting and swinging arm (22) on the swinging arm body (21) is hinged with the end part of a cylinder piston rod (41) forming a driving mechanism through a first hinged shaft (221), a cylinder body is hinged with the base (30) through a second hinged shaft (222), and the first hinged shaft (221) and the second hinged shaft (222) are arranged in parallel with a pressing roller or a wheel (50).

5. A hemming device according to claim 1 wherein: the upper portion of swing arm body (21) is connected with last communications boom (23), and the suspension end of going up communications boom (23) is connected with overhanging arm (24), has between last communications boom (23) and overhanging arm (24) adjusting pad (25), and the connecting hole between last communications boom (23) and overhanging arm (24) sets up three groups at least.

6. A hemming device according to claim 5 wherein: the suspension arm (24) is a folding rod shape which is formed by a front short arm (241) and a rear long arm (242) and has an included angle of 120-150 degrees, and a press roller or a wheel (50) is arranged at the front end of the front short arm (241).