KR20140049397A - Device for piercing panel hole for vehicle - Google Patents

Abstract

The present invention relates to a device to machine holes close to each other on a vehicle body panel and, more specifically, to a device to machine holes close to each other on a vehicle body panel capable of machining some or all of two or more close holes formed on a panel. The present invention is developed in light when the holes close to each other are machined on the vehicle body panel or are machined in slightly different positions in spite of being the same vehicle type. Thus, the present invention is to provide the device for machining holes close to each other on a vehicle body panel capable of simultaneously machining the two close holes or selectively machining the holes arranged on the slightly different positions in spite of being the same vehicle type through a single process without using different machining processes for holes arranged in slightly different positions.

Description

Apparatus for processing near-holes for vehicle body panels {Device for piercing panel hole for vehicle}

The present invention relates to a proximity hole processing apparatus for a vehicle body panel, and more particularly, to a proximity hole processing apparatus for a vehicle body panel to enable the processing of all or two or more of the two or more proximity holes formed in the panel.

The vehicle body panel for the vehicle is composed of an outer panel constituting the exterior and an inner panel facing the interior, and the inner panel is subjected to hole processing for mounting various components.

In addition, hole processing for mounting a license plate is made at the bottom of the rear end of the trunk lid or tail gate among the outer panels forming the exterior, and even the same model varies the hole processing position according to the license plate specifications of the exporting country.

For example, even if the same vehicle as shown in Figure 6 attached to both ends of the license plate mounting panel 70 of the North American vehicle, the license plate mounting holes 71 are processed while maintaining a certain distance (A), Australian vehicles The license plate mounting holes 72 are processed at both ends of the license plate mounting panel 70 at different distances B, respectively.

At this time, for easy explanation of the license plate mounting hole processing process, as shown in FIG. 7 showing the license plate mounting holes of the North American vehicle and the Australian vehicle simultaneously, the license plate mounting of the license plate mounting panel 70 of the North American vehicle and the Australian vehicle The distance between the holes 71 and 72 has a distance of about 15 mm.

Therefore, even in the same vehicle, there is a problem in that the process of mounting a license plate mounting hole of a vehicle for an Australian vehicle for a North American vehicle must be performed in a separate process.

Here, a look at the conventional license plate mounting hole processing process and the problems in more detail as follows.

The license plate mounting hole is machined on the license plate attachment surface by a pair of hole processing apparatuses mounted on the press with the panel (for example, a trunk lid having the license plate attachment surface) seated on the press.

The pair of hole processing apparatuses comprises a block-type retainer mounted on a press, and a pierce punch for raising and lowering by air pressure on the bottom of the retainer. The plates are spaced apart by a distance between the plate plates.

Therefore, as the air pressure is supplied into the retainers of the pair of hole processing apparatuses, each pierce punch is lowered to process the license plate mounting holes at both ends of the license plate mounting surface.

However, even if the same model is used, the distance A between the license plate mounting holes processed on the license plate mounting surface of the North American vehicle and the license plate mounting holes processed on the license plate attachment surface of the Australian vehicle are different, so that the hole processing process is performed. There are drawbacks to proceed by dividing into separate processes, and accordingly, there is a problem in that manufacturing costs increase due to restructuring of press equipment and division of work processes, such as mounting a separate hole processing apparatus on a separate press.

The present invention is conceived in consideration of the case in which the holes close to each other to the body panel to be processed, or even if the same car model is to be processed in different positions adjacent to each other, the two holes close to each other at the same time, or the same vehicle model It is an object of the present invention to provide a close-hole processing apparatus for a vehicle body panel for a vehicle which can be performed in one process by selectively selecting a process without dividing a hole processing process at another location in close proximity.

The present invention for achieving the above object is a first and second air cylinder mounted to the press; First and second cam plates integrally connected with the piston rods of the first and second air cylinders, respectively; First and second punch blocks descending by the forward and backward movement of the first and second cam plates; First and second pierce punches respectively mounted to the first and second punch blocks to simultaneously or selectively perform hole drilling on the panel; A retainer including an upper plate for supporting the upper surfaces of the first and second cam plates, and a lower plate on which the lifting and lowering through holes of the first and second pierce punches are formed; Provides a proximity hole processing apparatus for a vehicle body panel, characterized in that configured to include.

As a preferred embodiment of the present invention, by mounting the coil spring supported on the lower plate of the retainer on the bottom of the first and second punch block, so as to be compressed when the first and second punch block is lowered and to exhibit the elastic restoring force when lifting It is characterized by one.

In particular, the front surface of the first and second cam plate is formed with a first slide surface inclined downward toward the rear, and the rear surface of the first and second punch block, the second inclined upward toward the front so as to slide contact with the first slide surface A slide surface is formed.

In addition, the first and the second pitch interval adjusting block is fixed to the center portion of the first and second punch block, respectively, the inner surface is in surface contact with each other.

Preferably, one side of the pierce punch fixing hole of the first and second pitch gap adjusting block is processed in a straight surface to prevent the rotation of the pierce punch.

Through the above-mentioned means for solving the problems, the present invention provides the following effects.

According to the present invention, a pair of cam plates advancing by the air cylinder and a pair of punch blocks and pierce punches independently lowered by the cam plate are configured to provide two or more holes adjacent to each other in the body panel. Not only can it be processed at the same time, it also provides the advantage that selective hole machining is possible even when machining holes in different proximity to the same model.

For example, when the distance between the license plate mounting holes of the North American vehicle and the Australian vehicle is about 15 mm, the license plate mounting holes of the North American vehicle and the Australian vehicle are conventionally processed by separate hole processing. By means of the proximity hole processing apparatus of the license plate mounting holes of North American vehicles and Australian vehicles can be selectively processed in the same process.

As a result, the conventional process of processing a proximity hole, such as a license plate mounting hole, is divided into separate processes, resulting in an increase in manufacturing cost due to the reconfiguration of press equipment and division of a work process. Since the same proximity hole can be selectively processed in one process, the number of hole processing steps can be reduced and manufacturing costs can be reduced.

1 is an exploded perspective view showing a proximity hole processing apparatus of a vehicle body panel according to the present invention;
Figure 2 is an assembled perspective view showing a proximity hole processing apparatus of a vehicle body panel according to the present invention,
3 is a perspective view showing a configuration excluding a retainer of a proximity hole processing apparatus for a vehicle body panel according to the present invention;
4 is a cross-sectional view of an essential part illustrating an operating state of a proximity hole processing apparatus for a vehicle body panel according to the present invention;
5 is a plan view of a main portion for explaining a configuration of adjusting a pierce punch pitch interval of a proximity hole processing apparatus of a vehicle body panel according to the present invention;
6 and 7 are schematic views for explaining the structure of the proximity hole of the panel on which the license plate is mounted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention focuses on the fact that two or more adjacent holes in a body panel can be processed simultaneously or selectively in one hole processing process.

In particular, the present invention, even in the case of the same model, in view of the hole processing position is changed according to the license plate specifications of the country to be exported, license plate mounting surface configured in the lower end of the trunk lid or tail gate, etc. (hereinafter referred to as license plate mounting panel) Process the license plate mounting holes in the process, but it is characterized in that it can be selectively processed in a desired position in one process.

Usually, the license plate mounting hole of the license plate mounting panel is processed by a hole processing apparatus mounted on the press in a state where the license plate mounting panel is seated on the press, and the present invention is to provide a hole processing apparatus mounted on the press.

To this end, as shown in the accompanying Figures 1 to 3 as a configuration of the hole processing apparatus according to the present invention, the first and second air cylinders (11, 12) are mounted to the press, the first and second The piston rods of the air cylinders 11 and 12 are advanced or retracted to the license plate mounting hole machining position according to the air pressure supply and release.

The piston rods 13 of the first and second air cylinders 11 and 12 are integrally mounted with first and second cam plates 21 and 22 made of horizontal plate bodies, respectively. The first slide surface 23 inclined downward toward the rear is formed on the front surface of the two cam plates 21 and 22.

In front of the first and second cam plates 21 and 22, first and second punch blocks 31 and 32 are disposed to be lowered, respectively, and the first and second punch blocks 31 and 32 are disposed. The second slide surface 33 inclined upward is formed on the rear surface of the back side so as to slide in contact with the first slide surface 23.

Therefore, when the piston rods 13 of the first and second air cylinders 11 and 12 move forward and the first and second cam plates 21 and 22 move forward, the first and second cam plates ( The first slide surface 23 of 21 and 22 advances along the second slide surface 33 of the first and second punch blocks 31 and 32 while simultaneously pressing the second slide surface 33 downward. As a result, the first and second punch blocks 31 and 32 are lowered.

At this time, the first and second punch blocks 31 and 32 are equipped with first and second pierce punches 41 and 42 for simultaneously or selectively performing hole processing on the license plate mounting panel.

Meanwhile, the first and second punch blocks 31 and 32 including the first and second cam plates 21 and 22 are surrounded by the retainer 50 having a rectangular box shape, and the first and second punch blocks. 31 and 32 are in close contact with the bottom face of the upper plate 51 of the retainer 50 before the lowering.

In addition, the lower plate 52 of the retainer 50 is provided with a through hole 53 for raising and lowering the first and second pierce punches 41 and 42, and thus the first and second punch blocks 31 and 32. The lower end portions of the first and second pierce punches 41 and 42 having the upper ends fixed to the upper and lower ends of the first and second pierce punches 41 and 42, respectively, extend through the retainer 50.

In addition, the bottom of the first and second punch block (31, 32) is mounted to the coil spring 34 that is supported on the lower plate 52 of the retainer 50, the coil spring 34 is the first and second When the second punch blocks 31 and 32 are lowered, they are supported on the upper surface of the lower plate 52 and compressed, and exhibit elastic resilience when the first and second punch blocks 31 and 32 are raised and lowered. Serves to elevate the blocks 31 and 32 to their original positions.

Meanwhile, first and second pitch gap adjusting blocks 61 and 62 to which the first and second pierce punches 41 and 42 are fixed are respectively disposed at the centers of the first and second punch blocks 31 and 32. The inner surface of one of the first and second pitch gap adjusting blocks 61 and 62 is machined into a straight surface 64 so that the first and second pierce punches 41 and 42 are not rotated when they are raised and lowered.

At this time, the first and second pierce punches 41 and 42 by changing the mounting positions of the first and second pierce punches 41 and 42 fixed to the first and second pitch gap adjusting blocks 61 and 62, respectively. You can adjust the pitch spacing between).

In other words, as shown in FIG. 5, the first and second pitch gap adjusting blocks 61 and 62 for maintaining a narrow pitch interval between the first and second pierce punches 41 and 42, and the first and second pitch gap adjusting blocks 61 and 62. And a plurality of first and second pitch gap adjusting blocks 61 and 62 for maintaining a wide pitch gap between the second pierce punches 41 and 42, and thus, a first and second pitch gap adjusting blocks during pitch adjustment. Only 61 and 62 may be selectively mounted on the first and second punch blocks 31 and 32.

Here, looking at the operational flow of the hole processing apparatus of the present invention made of the above configuration are as follows.

6 and 7, although the positions of the license plate mounting holes of the license plate mounting panel of the North American vehicle and the Australian vehicle are different, the present invention can be performed in one hole processing step.

To this end, the pitch spacing between the first and second pierce punches 41 and 42 is adjusted to the spacing between the license plate mounting hole of the North American vehicle and the license plate mounting hole of the Australian vehicle.

That is, the first and second pierce punches 41 and 42 remove the first and second pitch gap adjusting blocks 61 and 62 mounted at the same interval as the pitch interval between the license plate mounting holes of the North American vehicle and the Australian vehicle. By mounting to the first and second punch blocks 31 and 32, the pitch spacing between the first and second pierce punches 41 and 42 is adjusted to the distance between the license plate mounting hole of the North American vehicle and the license plate mounting hole of the Australian vehicle. .

In order to process the license plate mounting hole of a North American vehicle, only the first air cylinder 11 is driven so that the piston rod 13 moves forward and the first cam plate 21 moves forward. The first slide surface 23 of 21 moves forward along the second slide surface 33 of the first punch block 31 and simultaneously lifts upward to press the second slide surface 33 downward. , The first punch block 31 is lowered.

At this time, the coil spring 34 mounted on the bottom of the first punch block 31 is in a compressed state.

As the first punch block 31 descends as described above, the first pierce punch 41 drills holes for drilling the license plate mounting holes 71 for the North American plates of the license plate mounting panel 70.

On the other hand, when the license plate mounting hole of an Australian vehicle is to be processed, only the second air cylinder 12 is driven so that the piston rod 13 moves forward and the second cam plate 22 moves forward. The first slide surface 23 of the second cam plate 22 advances along the second slide surface 33 of the second punch block 32 and rises upward while simultaneously moving the second slide surface 33 downward. By pressing the second punch block 32 is lowered.

At this time, the coil spring 34 mounted on the bottom of the second punch block 32 is in a compressed state.

As the second punch block 32 descends as described above, the second pierce punch 42 drills holes for drilling the license plate mounting hole 72 for the Australian license plate mounting panel 70.

In this way, a pair of cam plates advancing by each air cylinder is constructed, and a pair of punch blocks and pierce punches independently lowered by the cam plates are constituted, and two or more holes adjacent to each other in the body panel are simultaneously formed. Not only can it be processed, but even the same vehicle can selectively process holes of different proximity positions in one process.

11: first air cylinder 12: second air cylinder
13: piston rod 21: first cam plate
22: second cam plate 23: first slide surface
31: first punch block 32: second punch block
33: second slide surface 34: coil spring
41: first pierce punch 42: second pierce punch
50: retainer 51: top plate
52: lower plate 53: through hole
61: block for adjusting the first pitch interval 62: block for adjusting the second pitch interval
63: Pierce punch fixing hole 64: Straight surface
70: license plate mounting panel 71,72: license plate mounting hole

Claims (5)

First and second air cylinders 11 and 12 mounted to the press,
First and second cam plates 21 and 22 integrally connected to the piston rods 13 of the first and second air cylinders 11 and 12, respectively;
First and second punch blocks 31 and 32 that are lowered by pressing force of the first and second cam plates 21 and 22 back and forth;
First and second pierce punches 41 and 42 mounted on the first and second punch blocks 31 and 32, respectively, to simultaneously or selectively perform hole drilling on the panel;
The upper plate 51 supporting the upper surfaces of the first and second cam plates 21 and 22 and the lower plate 52 on which the lifting and lowering through holes 53 of the first and second pierce punches 41 and 42 are formed. Retainer 50 including;
Proximity hole processing apparatus for a vehicle body panel, characterized in that comprises a.
The method according to claim 1,
The coil springs 34 supported on the lower plate 52 of the retainer 50 are mounted on the bottoms of the first and second punch blocks 31 and 32, so that the first and second punch blocks 31 and 32 are mounted. Apparatus for close-hole processing of a vehicle body panel, characterized in that the compression is to be lowered and to exhibit an elastic restoring force when lifting.
The method according to claim 1,
The first slide surface 23 inclined downward toward the rear is formed on the front surfaces of the first and second cam plates 21 and 22, and the first slide is formed on the rear surfaces of the first and second punch blocks 31 and 32. Apparatus for close-hole processing of a vehicle body panel for a vehicle, characterized in that the second slide surface (33) is inclined toward the front to slide contact with the surface (23).
The method according to claim 1,
In the center of the first and second punch blocks 31 and 32, first and second pitch gap adjusting blocks 61 and 62 to which the pierce punches 41 and 42 are fixed are inserted and mounted separately. A proximity hole processing apparatus for a vehicle body panel according to claim 1, wherein the surface contact with each other is performed.
The method of claim 4,
One side of the pierce punch fixing hole 63 of the first and second pitch gap adjusting blocks 61 and 62 is machined into a straight surface 64 to prevent rotation of the pierce punches 41 and 42. Proximity hole processing apparatus for vehicle body panels.

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