KR101329052B1 - Hemming apparatus for groove of window - Google Patents

Abstract

The hemming device according to the present invention does not need to be equipped with two sets of hemming devices (i.e., a linear hemming device and a corner hemming device) for hemming a window opening.
The present invention relates to a hemming device for a vehicle door capable of hemming both the corner portion and the linear portion of the window opening in a state where the door is placed on one lower die.
The lower die (D1) (D2) provided on the base 201, the outer hemming unit 200 for hemming the outer flange of the outer contour of the door, and the contour of the opening (W) for the window of the door A hemming device for a window opening having an opening hemming unit having a plurality of blades arranged to correspond to the opening contour for hemming,
Among the plurality of blades, with respect to two blades which interfere with each other when the blade returns to its original position after the forwarding operation by the driving means, the two blades are arranged in different positions in the vertical direction (up-down direction),
Among the blades constituting the opening hemming unit, a blade at the same height in the vertical direction (up and down direction) is operated to hemm the corresponding portion of the opening contour first, and then the frame 500 is raised or lowered, and After moving the blades at different heights to the machining position, the blades are operated to hemm the corresponding portion of the opening contour.

Description

Hemming device for opening of window of vehicle door {Hemming Apparatus for Groove of window}

The present invention relates to a hemming device for hemming an opening for a window of a vehicle door,

More specifically, it is not necessary to have two sets of hemming devices for hemming the openings for windows (that is, a hemming device for hemming a linear portion of the window opening and a hemming device for hemming a corner portion of the window opening).

The present invention relates to a hemming device for a vehicle door capable of hemming both the corner portion and the linear portion of the window opening in a state where the door is placed on one lower die.

Hemming device according to the invention,

The lower die (D1) (D2) provided on the base 201, the outer hemming unit 200 for hemming the outer flange of the outer contour of the door, and the contour of the opening (W) for the window of the door A hemming device for a window opening having an opening hemming unit having a plurality of blades arranged to correspond to the opening contour for hemming,

Among the plurality of blades, with respect to the two blades that interfere with each other when the blade returns to its original position after the forward movement by the drive means, by placing the two blades in the vertical direction different from each other,

Among the blades constituting the opening hemming unit, the blades are operated at the same height in the vertical direction to hemm the corresponding portion of the opening contour first, and then the frame 500 is raised or lowered to be positioned at another height. After moving the blade to the machining position, the blade is operated to hemm the corresponding portion of the opening contour.

In the method of making a body (BIW) in the body shop, hemming technology for bending and joining panels is widely used for joining two panels, and it is mainly used for areas where welding is difficult due to the appearance or shape of the body. .

In recent years, hemming technology has been increasingly applied to enhance the functionality and quality of the body.

FIG. 1 is a view illustrating a door for a vehicle having a window opening in which a hemming device according to the present invention may be used, and FIG. 2 is a cross-sectional view illustrating a hemming method for an outer panel and an inner panel. As shown in Fig. 2, the hemming is performed by setting the outer panel and the inner panel at the machining positions and then folding the flange portion of the outer panel over the inner panel with a constant pressure using a hemming device.

Conventionally, the joining method through welding is mainly used for the opening contour to which the window glass is fitted.

However, since there are many advantages of simplifying the manufacturing process of the vehicle door, securing safety during vehicle collision, and reducing wind noise, the latest model cars are welded to the opening contour where the window glass is fitted. This is not the trend of hemming.

3 is a diagram illustrating an appearance of a vehicle door 100 having an opening for a window. As shown in this figure, a hemming operation is also performed on the inner contours 142, 143, 144, 145, 148, and 149 of the window opening, together with the hemming work on the outer contours 110, 120, 130 of the door 100.

FIG. 4 is a cross-sectional view of the A-A section of a part of the section shown in FIG. 3 (designated by reference numeral 145), illustrating a state in which the outer contour of the door and the inner contour of the opening are hemmed.

As shown in FIG. 4, the hemming operation of the door is performed by folding the flange of the outer panel OP of the door so that the flange overlaps the edge of the inner panel IP to fold the door panel.

As shown in Fig. 4, the opening contour for the window is formed with a groove G into which the glass can be fitted. The cross-sectional shape of the groove has a “c” shape in which only the side is opened and the remaining portion is closed. . Therefore, the roller hemming by the robot roller cannot be applied, and is made by the blade hemming method in which the bending work of the flange is performed by the forward and descending operation of the blade.

5 is a view for explaining a basic concept for performing a hemming operation having a plurality of heming blades corresponding to the shape of the inner contour of the window opening.

As shown in Fig. 5A, the inner contour of the window opening is divided into four linear portions 142, 143, 144 and 145 and two corner portions 148 and 149, each blade for hemming the four linear portions. (242, 343, 344, 345) are required, and each blade 448, 449 is needed for hemming the two corners. 5 (a) shows a state in which all the blades are advanced into the grooves G into which the glass is fitted (that is, the state in which the flanges of the outer panel are pressed), in this state, all the blades interfere with each other. It seems to work normally without), but in reality you can't install all the blades like this.

The reason for this is illustrated in FIG. All blades for hemming must be retracted (return to home) after bending of the flange by forward and downward motion. Therefore, if the blades are placed as shown in Fig. 5 (a), when all the blades are returned to their original positions, as shown in Fig. 5 (b), the blade 448 for hemming the corner portion is adjacent thereto. Since interference occurs with the two blades 342 and 345, the return operation cannot be performed. The blade 449 hemming another corner portion also has interference with the two blades 344 and 345 adjacent thereto, and thus cannot return.

In conclusion, the hemming device of the type shown in (a) of FIG. 5 cannot be manufactured or cannot be operated normally.

For this reason, as shown in Figs. 6A and 6B, the method for hemming the opening contour into which the current window glass is fitted, the linear contour of the outer contour of the vehicle door and the opening for the window is performed in one step. After the furnace hemming operation is completed, the next step is to complete the hemming operation with a new hemming device having a corner blade for hemming the corner portion of the opening for the winch.

That is, in the present known art, in order to hemm the groove G of the opening part for a vehicle window, a hemming device having blades which do not interfere with each other, among several hemming blades arranged to correspond to the shape of the inner contour of the window opening, is provided. After the hemming operation is performed in one step, the hemming operation must be performed in two steps using another hemming device having the remaining blades.

FIG. 6 is a diagram illustrating this currently known hemming technique. FIG. 6A is a diagram illustrating the first hemming operation, and FIG. 6B is a diagram illustrating the second hemming operation.

In FIG. 6A, reference numerals 210, 220, and 230 denote blades for hemming the linear portion among the outer contours of the vehicle door, respectively, and reference numeral 215 and 225 denote blades for hemming the corner portions among the outer contours of the vehicle door. Respectively. 6 (a), each of the blades 342, 343, 344 and 345 for hemming four linear portions 142, 143, 144 and 145 among the inner contours of the window opening is shown.

In FIG. 6B, reference numerals 448 and 449 denote the respective blades for hemming the two corner portions 148 and 149 among the inner contours of the window opening in two stages after the first stage hemming operation. 448,449).

In the conventional hemming technique as shown in FIG. 6, in order to prevent interference between the blades, a hemming apparatus for hemming a linear portion of the window opening and a hemming apparatus for hemming a corner portion of the window opening should be provided. In addition, the production cost is not only a factor that increases, there is a problem that the production equipment is large because it must be provided with both hemming devices.

Furthermore, after completing the first stage hemming operation, the process of transferring the workpiece for the second stage hemming operation and the preparation work for setting the correct position are accompanied. The problem is being raised.

KR 10-0511174 B KR 10-1075806 B KR 10-2012-0000454 A

The present invention has been made to improve the prior art as described above,

As one hemming device having a plurality of hemming blades corresponding to the shape of the inner contour of the window opening, an object of the present invention is to enable a hemming operation on the inner contour of the window opening.

In particular, it is an object of the present invention to propose a hemming device for a window opening which can be hemmed in both a corner portion and a linear portion of a window opening in a state in which a door, which is an object to be processed, is disposed on one lower die.

In order to achieve the above object, the hemming device for a window opening according to the present invention,

The lower die (D1) (D2) provided on the base 201, the outer hemming unit 200 for hemming the outer flange of the outer contour of the door, and the contour of the opening (W) for the window of the door A hemming device for a window opening having an opening hemming unit having a plurality of blades arranged to correspond to the opening contour for hemming,

Instead of arranging a plurality of blades provided in the opening hemming unit on one coplanar surface,

Among the plurality of blades, with respect to two blades which interfere with each other when the blade returns to its original position after the forwarding operation by the driving means, the two blades are arranged in different positions in the vertical direction (up-down direction),

The frame 500 mounted with the opening hemming unit is installed to be raised and lowered with respect to the base 201 by the operation of the elevating driving means 550.

While the frame 500 is moved up and down by the elevating driving means, the front end portions of all the blades of the opening hemming unit are configured to maintain a position that does not interfere with the contour of the window opening W,

After hemming the corresponding portion of the opening contour by operating the blade at the same height in the vertical direction among all the blades constituting the opening hemming unit,

After the frame 500 is raised or lowered to move a blade located at another height to a machining position, the blade is operated to hemm the corresponding portion of the opening contour.

Further features of the present invention will be described in more detail in the following detailed description.

In the hemming apparatus according to the present invention configured as described above,

In order to solve the problem that several heming blades arranged to correspond to the shape of the inner contour of the window opening cause interference with each other when returning to the original position,

Instead of arranging a plurality of blades provided in the opening hemming unit on one coplanar surface,

Among the plurality of blades, the position (installation height) of the two blades in the vertical direction (up and down direction) with respect to the two blades that interfere with each other when the blade returns to its original position after the blade moves forward by the driving means By placing it differently on the frame,

After hemming the corresponding portion of the opening contour by operating the blade at the same height in the vertical direction among all the blades constituting the opening hemming unit,

Since the frame 500 is raised or lowered to move another blade located at another height to the machining position, the blade is operated to hemm the corresponding portion of the opening contour,

It is a very useful invention that the whole contour of the opening for a window can be hemmed in one process as one hemming apparatus.

The hemming device having such a feature had to be hemmed in one step by using a hemming device composed of only non-interfering blades, and then hemming in two steps using another hemming device having the remaining blades. Compared to the known technology, not only can significantly reduce the cycle time,

It is not necessary to have two sets of hemming devices for hemming the window openings of the vehicle door, that is, a hemming device for hemming the linear portion of the window opening, and a hemming device for hemming the corner portion of the window opening. It can reduce the cost of purchasing and reduce the installation space of production equipment.

1 is a diagram illustrating a vehicle door having a window opening in which a hemming device according to the present invention can be used,
2 is a cross-sectional view illustrating a hemming process for the outer panel and the inner panel.
3 shows the appearance of a vehicle door 100 having an opening for a window,
4 is a cross-sectional view of a portion AA cut away in FIG. 3.
5 is a view for explaining the basic concept of performing a hemming operation with a plurality of heming blades corresponding to the shape of the inner contour of the window opening.
6 is a diagram for explaining this currently known hemming technique.
Figure 7 is a perspective view schematically showing the appearance of the hemming device according to the present invention,
FIG. 8 is a perspective view illustrating a state in which the upper fixing member 600 is opened in FIG. 7, and omits the outer hemming unit 200 disposed at the front side and the left side.
FIG. 9 is a view of omitting the upper fixing member 600 and the outer hemming unit 200 of the door in FIG. 8.
FIG. 10 is a diagram in which a part of the lower die is omitted in order to illustrate the structure of the 'opening hemming unit' of the hemming apparatus according to the present invention in FIG. 9 in more detail.
11 is a view showing a coupling relationship between the 'opening hemming unit' of the hemming device according to the present invention, and the frame 550 to move up and down in the state of mounting it.
FIG. 12 is an enlarged perspective view of part C of FIG. 11, and is a view illustrating characteristics of two blades having different heights so as not to cause interference.
Figures 13a and 13b is a view omitting some components in Figure 12 to show the structure in which the blade is operated.
14 is a sequential explanatory view illustrating the operation procedure of the blade of the opening hemming unit according to the present invention in detail.
FIG. 15 is a view sequentially illustrating a process in which two blades having different installation heights in the opening hemming unit according to the present invention operate by raising and lowering the frame 550.

Hereinafter, a hemming device for an opening for a window according to the present invention will be described with reference to the accompanying drawings.

In order to explain the present invention in detail, for convenience, the portion where the window is located is referred to as the opening portion W, and the direction toward the center of the opening portion is referred to as the inward direction and the opposite direction is referred to. Refer to the outward direction.

In addition, based on the hemming apparatus shown in FIG. 7, the upper side will be referred to as the upper direction, and the opposite direction will be referred to as the lower direction.

Figure 7 is a perspective view schematically showing the appearance of the hemming device according to the present invention,

Hemming device according to the invention,

Hemming the base 201, the lower die (D) on which the door to be machined, the outer hemming unit (200) hemming the outer contour of the door, and the contour of the opening (W) for the window of the door It comprises an opening hemming unit.

The lower die D is installed on the base 201, and the shape of the lower die D is generally the same as the shape corresponding to the outer contour of the door to be processed.

The outer hemming unit 200,

A plurality of blades divided into appropriate numbers along the outer contour of the vehicle door, a plurality of link members 250 for operating each of these blades, and a drive cylinder 260 for driving the link members.

In the embodiment shown in Figure 7 divided into four blades (210, 220, 230) hemming the linear portion of the outer contour of the door, and four blades (215, 225) hemming the corner portion of the outer contour of the door Hemming the outer contour of the door is shown by way of example.

8 is a perspective view illustrating a state in which the upper fixing member 600 is opened in FIG. 7, in which the outer hemming unit 200 disposed at the front side and the left side is omitted.

The upper fixing member 600 is a component for supporting the inner panel of the door to be processed to be set in the correct position, is fixed to the base 201 by a bracket, the hinge shaft 610 by the driving means 620 Is rotated to the upper center to open or rotated to support the inner panel of the door.

In FIG. 8, reference numeral 550 illustrates a lifting and lowering driving means for raising or lowering the frame 500 on which the opening hemming unit to be described later is mounted.

9 is a diagram illustrating a hemming device in a state in which both the upper fixing member 600 and the outer hemming unit 200 are omitted in FIG. 8.

As shown in FIG. 9 in which both the upper fixing member 600 and the outer hemming unit 200 are omitted, the lower die D of the hemming device according to the present invention has a first lower portion where the window frame portion of the door is placed. Die D1 and a second lower die D2 on which the body portion of the door is placed.

The first and second lower dies D1 and D2 are fixed to the base 201, and the outer hemming unit 200 is disposed around the first and second lower dies D1 and D2. Is installed.

In FIG. 9, an opening hemming unit for a window according to the present invention is installed in the window opening W of the door while being inside the first lower die D1.

The opening hemming unit for the window is provided with a plurality of blades (only reference numerals 342, 343, 345 are shown in FIG. 9) to have a shape corresponding to the linear portion of the opening contour, and the blades are advanced from the original position to the machining position and again. And driving means for returning to the original position.

The blade driving means includes a sliding cam 350 which moves up and down in a vertical direction, and a driving cylinder (reference numeral 330 in FIG. 10) provided below the sliding cam 350.

Reference numeral 580, which is not described in FIG. 9, is a configuration provided on the frame 500, and a cam roller (reference numeral 351 of FIG. 13A) positioned outside the cam while guiding the sliding cam 350 to move up and down stably. It shows a support block for supporting the sliding cam 350 to press the).

In addition, an elevating driving means 550 for elevating and operating the opening hemming unit is provided outside the window opening W and the first lower die D1. The elevating driving means 550 is configured to at least three or more in order to stably raise and lower the frame 500 on which the opening hemming unit is mounted while maintaining a horizontal state. In the embodiment according to the present invention has been shown an example composed of four lifting drive means (550).

FIG. 10 is a view in which the part of the lower die is omitted in order to more specifically illustrate the structure of the 'opening hemming unit' of the hemming apparatus according to the present invention in FIG. 9, and FIG. Fig. 3 shows the coupling relationship between the opening hemming unit 'and the frame 550 which moves up and down in the state where it is mounted.

Opening hemming unit according to the present invention shown in Figure 10 and 11,

A plurality of blades 342, 343, 344, 345, 448 and 449 are disposed to correspond to the linear portion of the opening contour. Although one corner blade 449 of the two corner blades 448 and 449 is not shown in FIGS. 10 and 11, two corner portions are located at the same position as shown in FIG. 6B. Blades 448 and 449 are each disposed.

In addition, the opening hemming unit according to the present invention includes drive means for advancing the blades from their original position to the machining position and returning them back to their original position.

Among the plurality of blades 342, 343, 344, 345, 448, and 449, positions (heights) in the vertical direction are arranged differently with respect to the two blades that interfere with each other when returning to the original position after the hemming operation by the forward operation.

In the exemplary embodiment of the present invention, the formation heights of the two corner blades 448 and 449 are arranged to be lower than the height at which the remaining blades 342, 343, 344 and 345 are located.

Thus, blades arranged differently in the vertical direction (height) are not interfered with each other even if the blades are returned to their original positions.

In the present invention, two blades interfering with each other are divided into one layer and two layers,

After hemming a part of the opening contour by operating the blades located two stories high among all the blades constituting the opening hemming unit,

The frame 500 mounted with the opening hemming unit is raised by the elevating driving means 550 to raise the blade located at the height of the first floor to the machining position, and the first floor blade is operated to hemm the corresponding portion of the opening contour. will be.

In FIG. 11, reference numeral 510 denotes a connecting arm for connecting the frame 500 on which the opening hemming unit is mounted to the elevating driving means 550, and a ball screw housing 513 at each end of each connecting arm 510. Is formed, the ball screw housing 513 is coupled to the transfer screw 515 rotated by a rotating motor (not shown). By such a configuration, when the transfer screw 515 is rotated forward or reverse, the ball screw housing 513 is raised and lowered, the frame coupled to the ball screw housing 513 by the connecting arm 510. 500 is to move up and down.

At this time, while all the blades maintain the initial position (retracted position) while the opening hemming unit mounted on the frame 500 moves up and down within the opening for the window, the front end portions of all the blades of the opening hemming unit It does not interfere with the contour panel of the opening W for the window.

In FIG. 11, reference numeral 330 denotes a blade driving means for driving the blade of the opening hemming unit, and reference numeral 353 denotes a bracket for rotatably supporting the blade of the opening hemming unit. 353 is fixedly installed on the frame 500. And, reference numeral 355 shows the rotational hinge of the blade.

11 and 12, in the embodiment of the present invention, the blade of the opening hemming unit is coupled to the bracket 353 by a hinge 355, the operation of the drive means 330 and the sliding cam 350 It moves forward to the hemming position. The retraction operation of the advanced blade is made by the restoring force of the spring not shown in the figure when the sliding cam is lowered.

A driving means 330 is provided for advancing the blades from the original position to the processing position and returning them back to the original position. As an embodiment of the driving means, a cylinder may be applied.

FIG. 12 is an enlarged perspective view of part C of FIG. 11, and is a view illustrating characteristics of two blades having different heights so as not to cause interference.

12 shows two blades (corner blade 448 and linear blade 345, and corner blade 448 and linear blade among the plurality of blades that interfere with each other when returning to the original position after the hemming operation by the forward motion. 342) It can be seen that the positions in the vertical direction (up and down direction) are arranged differently from each other.

As clearly shown in Figure 12, the opening hemming unit,

Configured by placing the blades at the same height that do not interfere with each other,

The remaining blades causing indirect adjacent blades and the indirect blades are characterized in that the configuration.

For example, a plurality of blades 342, 343, 344, 345 (reference numeral 344 is not shown in FIG. 12) having a shape corresponding to the linear portion of the window opening W contour, and a corner portion of the opening W contour A plurality of blades 448 and 449 (not shown 449 are not shown) having a shape corresponding to the above are arranged at different heights.

First hemming a hemming unit for hemming the linear portion of the opening contour, including the linear portion blades 342, 343, 344, 345 and driving means 330 for advancing the linear portion blades from their original position to the machining position and back to their original position. Referred to as unit 300,

A hemming unit having a corner portion of the opening contour, having corner blades 448 and 449 and driving means 430 for advancing the corner blades 448 and 449 from the original position to the machining position and back to the original position. This will be referred to as a second hemming unit 400.

The blade of the first hemming unit 300 and the blade of the second hemming unit 400 are configured to be disposed in different positions in the vertical direction (up and down direction),

The first hemming unit 300 and the second hemming unit 400 is configured to be installed on the upper surface of the frame 500,

The frame 500 is provided with a lifting and lowering drive means 550, is installed to enable the lifting and lowering with respect to the base by the operation of the lifting and lowering drive means,

While the frame 500 is moved up and down by the elevating driving means, the tips of the blades of the first hemming unit 300 and the tips of the blades of the second hemming unit 400 are contours of the opening W for the window. Configured to maintain the retracted position so as not to interfere with

After a part of the contour of the opening is hemmed by the operation of any one of the first hemming unit 300 or the second hemming unit 400 constituting the opening hemming unit,

After the frame 500 is raised or lowered to move the blades of the remaining hemming unit constituting the opening hemming unit to a machining position, by operation of the hemming unit, hemming of the remaining portion of the opening contour is completed, The frame 500 is raised or lowered to return to its original position.

The blade driving means 330 for driving the hemming blade according to the present invention may be configured by installing two cylinders 332 and 334 having different strokes in series, as shown in FIGS. 13A and 13B. have.

Figures 13a and 13b is a view omitting some components in Figure 12 to show the structure in which the blade is operated.

In FIGS. 13A and 13B, reference numeral 351 denotes a roller in close contact with the slide cam 350, and reference numeral 352 illustrates a guide for guiding the slide cam 350 to move up and down stably. The guide 352 is fixed to the support block 580.

The driving means 330 for advancing the blades from the original position to the machining position is particularly composed of a first cylinder 332 for advancing the blades slightly to perform pre-hemming, and a second cylinder 334 for raising a lot. desirable.

To this end, the cam surface of the sliding cam 350 is configured in two stages, when the roller 351 is in close contact with the low cam surface, the blade is advanced only a little, and the sliding cam 350 is raised higher to When the roller 351 is in close contact with the high cam surface, the blade is configured to move forward more.

And. In the operation of returning the blade advanced by the sliding cam 350 to its original position, the blade may be returned by the restoring force of the spring after the sliding cam is lowered.

The present invention may apply the blade driving means of the first hemming unit 300 and the blade driving means of the second hemming unit 400 as one integrated driving means.

That is, the opening hemming unit of the present invention,

A first hemming unit 300 composed of a plurality of blades 342, 343, 344, 345 having a shape corresponding to the linear portion of the opening contour, and hemming the linear portion of the opening contour;

A second hemming unit 400 composed of a plurality of blades 448 and 449 having a shape corresponding to the corner portion of the opening contour, and hemming the corner portion of the opening contour;

The blades 342, 343, 344, 345, 448, and 449 may be configured as driving means 430 for advancing from the original position to the machining position and returning them back to the original position.

Even in this modified embodiment, the blade of the first hemming unit and the blade of the second hemming unit is configured to be arranged in different positions in the vertical direction (up-down direction),

After operating some of the blades in the same position in the vertical direction of all the blades constituting the opening hemming unit, after the part of the opening contour is hemmed complete,

If the frame 500 is raised or lowered and the blade located at another height is moved to the machining position, then the blade is operated to hemm the corresponding portion of the opening contour. It should be included in the scope of.

14 is a sequential explanatory view illustrating the operation procedure of the blade of the opening hemming unit according to the present invention in detail;

FIG. 15 is a view sequentially illustrating a process in which two blades having different installation heights in the opening hemming unit according to the present invention operate by raising and lowering the frame 550.

First, with reference to Figure 14, the blade operation and the hemming operation of the window opening (W) hemming unit according to the present invention will be described sequentially.

When the sliding cam 350 is raised while the blade is in the original position and the low cam surface presses the roller 351, the blade is advanced to the preliminary hemming position. In this state, when the opening hemming unit installed in the frame 500 according to the present invention is lowered, the blade is also lowered together, thereby preliminary hemming is performed. When the preliminary hemming is completed, when the opening hemming unit rises, the blade also rises.

Subsequently, when the sliding cam 350 is further raised so that the high cam surface presses the roller 351, the blade is further advanced into the groove G and the main hemming position. In this state, when the opening hemming unit installed in the frame 500 according to the present invention is lowered, the blade is also lowered together, thereby making a main hemming operation. When the main hemming is completed, the opening hemming unit is raised, and the blade is also raised.

Finally, when the sliding cam 350, which has been raised by the driving means 330, is lowered to its original position, the blade is retracted to its original position by the restoring force (not shown) of the spring, thereby opening the window W by one blade. The contour hemming operation of is completed.

The hemming operation of the contour of the window opening W is applied as it is to the hemming apparatus according to the present invention. In particular, the hemming apparatus according to the present invention,

As shown in FIG. 15, the two adjacent blades for hemming the opening are arranged in different positions in the vertical direction so that interference does not occur.

Hereinafter, the contour hemming operation of the opening for a window having the characteristics of the present invention will be described in detail.

Figure 15 (a) shows the initial state before starting the hemming operation, the drive means 330 for operating the linear blade 345 in the initial state is operated by the slide cam 350 is raised to lower When the cam surface presses the roller 351, the linear blade 345 is advanced (see Fig. 15 (b)) to the pre-hemming position.

In this state, when the frame 500 descends, the blade is also lowered together, and thus a preliminary hemming operation is performed (see FIG. 15C). At this time, since the corner blade 448 is also installed in the frame 500, it descends together with the linear blade 345, but if the free space is secured, there is no effect on the object to be processed. When the preliminary hemming is completed, the opening hemming unit is raised to raise the two blades together.

Subsequently, the sliding cam 350 is further raised so that a high cam surface presses the roller 351 to advance the linear blade 345 to the main hemming position. In this state, the sliding cam 350 is installed in the frame 500 according to the present invention. When the opening hemming unit is lowered again, the two blades are lowered together, so that the main hemming operation is performed. When the main hemming is completed, the opening hemming unit is raised, and the blade is also raised.

Next, in order to heme a corner, the frame 500 is raised and the corner blade 448 is raised to a machining position (refer FIG. 15 (d)).

In this state, when the driving means 430 for operating the corner blade 448 is operated so that the slide cam is raised and the lower cam surface presses the roller, the linear blade 448 is advanced to the pre-hemming position (Fig. 15). See (e) of).

When the frame 500 is lowered in this state, the two blades are also lowered together, so that a preliminary hemming operation is performed (see FIG. 15 (f)). Since the main hemming process of the corner blade 448 is the same as the preliminary hemming process of the linear blade described above, the description of the subsequent steps will be omitted.

When the main hemming is completed, the corner blade is returned to the original position, the frame 500 is lowered, and the opening hemming unit according to the present invention is also returned to the original position.

In the above description of the hemming device for the opening of the window of the vehicle door according to the present invention with reference to the accompanying drawings, the description has been mainly focused on a specific shape and direction, the present invention can be variously modified and changed by those skilled in the art, such Modifications and variations should be construed as being included in the scope of the present invention.

201: Base
200: hemming unit outside the door
W: opening for window
342,343,344,345: linear blade, 448,449: corner blade
500: frame, 600: upper fixing member

Claims (3)

The base 201,
A lower die (D) installed on the base and having a shape corresponding to the outer contour of the door to be processed;
An outer hemming unit 200 for hemming the outer flange of the outer contour of the door;
In the hemming device for the window opening provided with an opening hemming unit for hemming the contour of the window opening (W) of the door,

The opening hemming unit,
A plurality of blades 342, 343, 344, 345, 448, 449 having a shape corresponding to the linear portion of the opening contour;
Drive means for advancing the blade from the original position to the processing position and back to the original position,
Of the plurality of blades, the positions in the vertical direction are different from each other, with respect to the two blades that interfere with each other when returning to the original position after the hemming operation by the forward operation,

The opening hemming unit is configured to be installed on the upper surface of the frame 500,
The frame 500 is provided with a lifting and lowering drive means 550, the lifting and lowering means are installed to enable the lifting and lowering relative to the base 201,
While the frame 500 is being lowered by the elevating drive means 550, the tips of all the blades of the opening hemming unit maintain the retracted position so as not to interfere with the contour of the window opening W. Is configured to

After operating some of the blades in the same position in the vertical direction of all the blades constituting the opening hemming unit, after the part of the opening contour is hemmed complete,
Hemming device, characterized in that the frame (500) is raised or lowered, moving the blade located at another height to the machining position and then operating the blade to hemm the corresponding portion of the opening contour.
The base 201,
A lower die (D) installed on the base and having a shape corresponding to the outer contour of the door to be processed;
An outer hemming unit 200 for hemming the outer flange of the outer contour of the door;
In the hemming device for the window opening provided with an opening hemming unit for hemming the contour of the window opening (W) of the door,

The opening hemming unit,
And a plurality of blades 342, 343, 344 and 345 having a shape corresponding to the linear portion of the opening contour, and driving means 330 for advancing the blades 342, 343, 344 and 345 from the original position to the machining position and back to the original position. A first hemming unit 300 for hemming the linear portion of the opening contour,
A plurality of blades 448 and 449 having a shape corresponding to corner portions of the opening contour, and drive means 430 for advancing the blades 448 and 449 from the original position to the machining position and returning them back to the original position. Consists of a second hemming unit 400 hemming the corner portion of the contour,
The blade of the first hemming unit and the blade of the second hemming unit is configured to be disposed in different positions in the vertical direction,

The opening hemming unit is configured to be installed on the upper surface of the frame 500,
The frame 500 is provided with a lifting and lowering drive means 550, is installed to enable the lifting and lowering with respect to the base by the operation of the lifting and lowering drive means,
While the frame 500 is moved up and down by the elevating driving means, the tips of the blades of the first hemming unit 300 and the tips of the blades of the second hemming unit 400 are contours of the opening W for the window. Configured to maintain the retracted position so as not to interfere with

After a part of the contour of the opening is hemmed by the operation of any one of the first hemming unit 300 or the second hemming unit 400 constituting the opening hemming unit,
After the frame 500 is raised or lowered to move the blades of the remaining hemming unit constituting the opening hemming unit to a machining position, by operation of the hemming unit, hemming of the remaining portion of the opening contour is completed, Hemming device, characterized in that the frame 500 is raised or lowered to return to its original position.
The base 201,
A lower die (D) installed on the base and having a shape corresponding to the outer contour of the door to be processed;
An outer hemming unit 200 for hemming the outer flange of the outer contour of the door;
In the hemming device for the window opening provided with an opening hemming unit for hemming the contour of the window opening (W) of the door,

The opening hemming unit,
A first hemming unit 300 composed of a plurality of blades 342, 343, 344, 345 having a shape corresponding to the linear portion of the opening contour, and hemming the linear portion of the opening contour;
A second hemming unit 400 composed of a plurality of blades 448 and 449 having a shape corresponding to the corner portion of the opening contour, and hemming the corner portion of the opening contour;
The blades 342, 343, 344, 345, 448, 449 is made of a drive means 430 for advancing from the original position to the machining position and back to the original position,
The blade of the first hemming unit and the blade of the second hemming unit is configured to be disposed in different positions in the vertical direction,

The first hemming unit 300 and the second hemming unit 400 is configured to be installed on the upper surface of the frame 500,
The frame 500 is provided with a lifting and lowering drive means 550, is installed to enable the lifting and lowering with respect to the base by the operation of the lifting and lowering drive means,
While the frame 500 is moved up and down by the elevating driving means, the tips of the blades of the first hemming unit 300 and the tips of the blades of the second hemming unit 400 are contours of the opening W for the window. Configured to maintain the retracted position so as not to interfere with

After a part of the contour of the opening is hemmed by the operation of any one of the first hemming unit 300 or the second hemming unit 400 constituting the opening hemming unit,
After the frame 500 is raised or lowered to move the blades of the remaining hemming unit constituting the opening hemming unit to a machining position, by operation of the hemming unit, hemming of the remaining portion of the opening contour is completed, Hemming device, characterized in that the frame 500 is raised or lowered to return to its original position.

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