KR102798830B1 - Roof rack machining apparatus - Google Patents

Abstract

The automobile roof rack processing device according to the present invention is for simultaneously forming holes of a predetermined shape on the back surface of a roof rack body bent in a predetermined shape along the longitudinal direction, and comprises a main frame, a roof rack fixing unit installed on the main frame and fixing the roof rack so that the processing portion for mechanical processing faces upward,
The first, second, third, and fourth processing units are installed inline on the main frame so as to be adjacent to the above-mentioned loop rack fixing unit and are independently installed along the main guide rail so as to be able to simultaneously process each hole in the loop rack fixed by the above-mentioned loop rack fixing unit.

Description

Roof rack machining apparatus for automobiles {Roof rack machining apparatus}

The present invention relates to a roof rack processing device, and more specifically, to an automobile roof rack processing device capable of simultaneously processing machined portions of a roof rack spaced at predetermined intervals for fixing to a roof panel.

In general, a roof rack is a means to secure additional space for loading cargo on the roof to overcome the limited interior space of a car, or to fix a means for loading cargo, and is a vertically installed rod or bar-shaped support on both sides of the vehicle's roof. These roof racks use high-strength synthetic resin or extruded aluminum bars.

Meanwhile, conventional roof racks were generally manufactured in a split form, and were made by assembling individually formed roof rack sides (body), stanchions, covers, and pads. Such conventional split roof racks can increase the degree of design freedom by manufacturing covers in various colors and shapes.

Meanwhile, the integrated roof rack is manufactured with a roof rack side (body) and stanchion and cover functions, so it consists of relatively few parts, simplifying the parts compared to the conventional split roof rack, which can increase the efficiency of product assembly work.

The side bars of the integrated roof rack are made of aluminum extrusion and banding, then three-dimensionally machined for attachment to the roof panel.

Korean Patent Publication No. 2023-0058896 discloses a method for manufacturing a vehicle roof rack. The disclosed manufacturing steps of the roof rack include a processing method for cutting the surfaces of both ends of a heat-treated aluminum bar to have a predetermined angle, and a processing method for forming auxiliary holes spaced apart on both sides with a reference hole as the center on the lower surface of the cut aluminum bar.

And Republic of Korea Publication Utility Model No. 2016-0003842 discloses a loop rack hole processing device. The disclosed hole processing device includes a first hole processing device, which is fixedly installed on the rear of the main body and configured to process a plurality of holes on one side of a base material supplied through the base material supply unit, and which is arranged toward the front of the main body, and a second hole processing device, which is installed on the inner upper side of the main body and configured to process a plurality of holes on the other side of the base material, and which is installed toward the rear of the main body.

However, since these conventional processing devices are designed to process holes using the first and second hole processing devices, it is difficult to improve the processing efficiency of holes for joining to the roof panel of an automobile, and in particular, it is difficult to increase the processing precision because the roof rack cannot be firmly fixed.

Korean Patent Registration No. 10-1418085 discloses a three-axis hole processing device, and Korean Patent Registration No. 10-2230716 discloses a fixing device for fixing a roof rack side when processing a roof rack using a processing device.

And, a method for manufacturing an integrated roof rack is published in Korean Patent Publication No. 10-2017-0105248.

Republic of Korea Publication Patent No. 2023-0058896 Republic of Korea Air Utility Model No. 2016-0003842 Republic of Korea Patent No. 10-1418085 Republic of Korea Patent Publication No. 10-2017-0105248

The present invention is intended to solve the above-described problems, and the purpose of the present invention is to provide an automobile roof rack processing device capable of simultaneously performing mechanical processing of a roof rack by using a plurality of processing units that are driven simultaneously and can be independently controlled while the roof rack is firmly fixed using a fixing unit, thereby maximizing production efficiency according to processing.

Another object of the present invention is to provide a roof rack processing device for an automobile, which facilitates centering work when fixing a roof rack for processing and improves workability and reliability according to fixing.

In order to achieve the above purpose, the loop rack processing device according to the present invention is configured to form holes of a predetermined shape and at a predetermined interval on the back surface of a loop rack body bent in a predetermined shape along the longitudinal direction, and comprises a main frame, a loop rack fixing unit installed on the main frame and fixing the processing portion of the loop rack for mechanical processing so that it faces upward,

The first, second, third, and fourth processing units are installed inline on the main guide rail so as to be adjacent to the above-mentioned loop rack fixing unit and can simultaneously process holes in the loop rack fixed by the loop rack fixing unit at positions independently moved along the main guide rail.

In the present invention, the roof rack fixing unit is installed at a predetermined interval on the main frame and has support blocks having roof rack support grooves formed on the upper surface for processing,

A pressurizing unit having a rotation lever that is rotatably installed on a first bracket fixed to a side adjacent to each support block and has a pressurizing pad installed at an end for pressing the upper surface of the roof rack, and a first actuator installed on a base block fixed to the main frame for rotating the rotation lever so that the pressurizing pad can press the upper surface of the roof rack,

It includes a centering unit that can set the center of the roof rack by using a center pin that is installed at the end of the second bracket installed on the above base block and fixed to the roof rack.

And the first processing unit comprises a first transfer table slidably installed along the main guide rail, a first driving unit for moving the first transfer table along the main guide rail for processing, a first body part installed on the first transfer table so as to be moved forward and backward toward the loop rack fixing unit by a second driving unit, a first elevation table installed so as to be moved up and down by a third driving unit along a first elevation guide rail installed vertically on the front of the first body part, a first driving motor installed on the first elevation table, and a first chuck installed at an end of a shaft of the first driving motor and having a tool for machining installed thereon.

The automobile roof rack processing device according to the present invention can simultaneously process circular and non-circular holes formed on the back surface of a roof rack when manufacturing the roof rack, thereby reducing the man-hours required for machining and further improving productivity.

Figure 1 is a perspective view of a roof rack that has been processed using a roof rack processing device for an automobile according to the present invention.
Figure 2 is a front view of a roof rack processing device for an automobile according to the present invention.
Figure 3 is a side view of a roof rack processing device for an automobile according to the present invention.
Figure 4 is a plan view of a roof rack processing device for an automobile according to the present invention.
Fig. 5 is a side view showing the first driving unit illustrated in Fig. 3.
Fig. 6 is a side view showing the second driving unit illustrated in Fig. 3.
Figure 7 is a plan view showing the first processing unit shown in Figure 1.
Fig. 8 is a plan view showing the state in which the transfer tables are installed on the main guide rail illustrated in Fig. 1.
Fig. 9 is a side view showing a positioning means for limiting the position of a transfer table moving along the main guide rail illustrated in Fig. 8.
Figure 10 is a plan view of the loop rack fixing unit shown in Figure 1.
Figure 11 is a side view of the loop rack fixing unit illustrated in Figure 1.
Fig. 12 is a side view showing a pressurizing unit for pressurizing the loop rack shown in Fig. 10.
Fig. 13 is a plan view of the centering unit illustrated in Fig. 10.
Fig. 14 is a side view of the centering unit illustrated in Fig. 10.

The automotive roof rack processing device according to the present invention is for machining the back surface of a roof rack after molding is completed, and one embodiment thereof is illustrated in FIGS. 1 to 13. Referring to the drawings, the automotive roof rack processing device (10) according to the present invention can simultaneously process a plurality of holes (210), a long hole (220) of a predetermined shape, etc., in a roof rack (200) formed into a predetermined shape by bending a profile made of a metal such as aluminum, and a pair of main guide rails (15) are installed in the longitudinal direction of a main frame (11).

And, it is provided with first, second, third, and fourth processing units (20)(40)(60)(80) that are arranged inline on the main guide rail (15) and are independently movable, and can simultaneously process holes (210) or long holes (220) formed at predetermined intervals in a roof rack (200) fixed by a roof rack fixing unit (90). The first, second, third, and fourth processing units (20)(40)(60)(80) have substantially the same structure.

And, on the front side of the main frame (11) of the first, second, third, and fourth processing units (20), (40), (60), and (80), a loop rack fixing unit (90) is installed to support and fix the lower side of the loop rack (200) for machining so that it faces upward.

The automotive roof rack processing device according to the present invention, configured as described above, will be described in more detail by component as follows.

The main guide rail (15) installed on the main frame (11) is installed with the first and second guide rails (15a) and (15b) spaced apart from each other and in a parallel state on the upper surface of the main frame (11).

And the first, second, third, and fourth processing units (20), (40), (60), and (80) installed inline on the main guide rail (15) each have a limited working radius within the movement range set along the main guide rail (15).

As described above, the first, second, third, and fourth machining units (20), (40), (60), and (80) have different tools fixed to the chuck depending on the machining area, but their actual structures are the same. Therefore, a detailed description focusing on the first machining unit (20) is as follows.

The first processing unit (20) above has a first transfer table (22) installed along the main guide rail (15) by a first driving unit (21) so as to be able to move forward and backward in the longitudinal direction of the main guide rail (15), i.e., in the X-axis direction. In addition, the second transfer table (22) has a first body part (25) installed by a second driving unit (23) so as to be able to move forward and backward in the Y-axis direction, i.e., in the direction perpendicular to the longitudinal direction of the main guide rail (15).

And, on the front side of the first body part (25), that is, on the front side corresponding to the roof rack fixing unit (100), a first vertical guide rail (26) is installed in a vertical direction, and a first lifting table (28) that is raised and lowered by a third driving unit (27) is installed on the first vertical guide rail (26), and a first machining motor (32) is installed on the first lifting table (28) on which a tool for machining is fixed to a first rotation axis. The first chuck (31) is not limited to the above embodiment, and may be installed on a driving shaft that is rotated by the first machining motor (32).

And, a first position limiting unit (35) is installed on the upper side of the first body part (25) to limit the rising and falling heights of the first lifting table (28).

Meanwhile, the first driving part (21) of the first processing unit (20) is rotated forward and reversely by the first driving motor (21a) installed in the main frame (11) as shown in FIGS. 5 and 6, and is equipped with a first lead screw (21b) installed in a direction parallel to the main guide rail (15), and a first transfer member (21c) that is screw-connected to the first lead screw (21b) and installed on the lower side of the first transfer table (22).

And the second driving unit (23) for moving the first body part (25) forward and backward with respect to the loop rack fixing unit (90) with respect to the first transfer table (22) has a first guide rail (24) installed on the upper surface of the first transfer table (22) in a direction perpendicular to the guide rail (15), and is rotated forward and reversely by a second driving motor (23a) fixed to the first transfer table (22), and has a second lead screw (23b) installed in a direction parallel to the first guide rail (24), and a second transfer member (23c) screw-connected with the second lead screw (23b) and installed on the lower surface of the first body part (25). And the third driving unit (27) can raise and lower the lifting table (28) along the first vertical guide rail (26) as shown in FIG. 3 and FIG. 7, and is provided with a third lead screw (27b) that is installed parallel to the first vertical guide rail (26) and rotates forward and backward by a third driving motor (27a), and a third transfer member (27c) that is screw-connected to the third lead screw (27b) and installed on the lifting table (28) to raise and lower the lifting table (28) along the third lead screw (27b) when raised and lowered.

And the first position limiting unit (35) for limiting the elevation height of the above-mentioned lifting table (28) is provided with a support bracket (35a) installed on the upper side of the first body part (25) as shown in FIG. 3, and a first sensor (35b) installed on the support bracket (35a) for detecting the lowered position of the lifting table (28), that is, the lowered position of the first chuck (31) on which the tool is installed, and a second sensor (35c) for detecting the raised position of the lifting table (28), that is, the raised position of the first chuck (31) on which the tool is installed, and a probe (35d) that comes into contact with the first and second sensors (35b) (35c) is installed on the above-mentioned lifting table (28).

The above first and second sensors (35b) and (35c) may use limit switches that come into contact with the probe (35d). However, this is not limited to them, and any sensor means capable of detecting the positions of the top dead point and bottom dead point of the lifting table may be used.

As shown in Fig. 7, positioning means (29)(49)(69)(89) may be further provided to limit the movement positions along the main guide rail (15) of the first, second, third, and fourth processing units (20)(40)(60)(80).

As described above, the above-mentioned positioned stabilizing means (29)(49)(69)(89) have probes (not shown) installed at the bottoms of the first, second, third, and fourth transfer tables (22)(42)(62)(82), respectively, and limit switches (29a)(49a)(69a)(89a) that limit the left and right transfer positions can be installed on the main frame.

Meanwhile, the roof rack fixing unit (90) is for fixing the roof rack (200) for processing as shown in FIGS. 9 to 13, and a base block (91) is installed on the main frame (11) so as to be spaced apart from the main guide rail (15) by a predetermined interval, and support blocks (93) having roof rack support grooves (92) for processing formed on the upper surface of the base block (91) are installed at a predetermined interval.

The bottom surface of the loop rack support groove (92) formed on the above support block (93) is formed in a shape substantially identical to the lower surface of the loop rack (92).

And, the base block (91) adjacent to the support block (93) is provided with a pressurizing unit (100) for pressing and fixing the roof rack (200) supported on the support block (93) from the upper side, and a centering unit (110) installed adjacent to the support block (93) in the center to determine the central position of the roof rack (200) for processing.

The above pressurizing unit (100) has a first bracket (101) installed on the side adjacent to the base block (91), and a rotation lever (103) having a pressurizing pad (102) installed at an end thereof for pressurizing the upper surface of the roof rack is installed on the first bracket (101). In addition, a first actuator (105) is installed on the base block (91) for rotating the rotation lever (103) so that the pressurizing pad (102) can pressurize the upper surface of the roof rack (200).

The above centering unit (110) is intended to hold the center of a roof rack (200) supported on support blocks (93) as shown in FIGS. 9 and 12 and 13, and comprises a second bracket (111) installed on a base block (91) at the center portion, a second actuator (112) installed on the second bracket (111), and a centering member (113) that is installed on a rod of the second actuator (112) and is combined with a center pin (115) inserted into a center hole (202) formed at the center of the roof rack (200) for processing.

The above centering member (113) is formed with a center pin insertion portion (114) formed from the front side to the rear side.

In addition, although not shown in the drawing, a control unit is provided to control the motors and actuators that make up the roof rack processing device.

In order to machine process the back surface of a roof rack using the roof rack processing device for an automobile according to the present invention configured as described above, a roof rack (200) for processing is mounted on a roof rack fixing unit (90).

Fixing of the roof rack (200) for processing is performed by raising each of the rotation levers (103) of the pressurizing units (100) so that the pressurizing pad (102) is positioned on the upper part of the support block (91) and retracting the centering member (113) of the centering unit (110).

In this state, a center pin (115) is inserted into a center hole (230) formed on the back surface of a loop rack (200) for processing, and the center pin (115) is mounted in a block support hole (92) of a support block (93) so that it can be positioned on the front side of a centering unit (110).

In this state, the centering member (113) is moved by using the second actuator (112) of the centering unit (10) so that the center pin (115) is inserted into the centering member (113), thereby setting the loop rack for processing.

And by operating the first actuators (105) of each of the pressurizing units (100), the pressurizing pad (102) installed at the end of the rotary lever (103) presses and fixes the upper surface of the roof rack (200) to the support block (93).

As described above, when the fixing of the roof rack is completed, tools for processing, i.e., drills, end mills, etc., are mounted on the chucks of the first, second, third, and fourth processing units (20), (40), (60), and (80), and the first and second driving units (21) (23) are driven so that the tools mounted on each chuck are positioned above the processing position.

In this state, the third driving unit (27) of the first, second, third, and fourth processing units (20), (40), (60), and (80) is used to lower the first lifting table (28), and the first and second driving units (21) and (23) are operated to simultaneously process a hole or hole formed on the back surface of the roof rack (200).

In the process of processing as described above, the first, second, third, and fourth processing units (20), (40), (60), and (80) independently move along the main guide rail (15), and each axis is driven and moved independently, so that holes or slots formed in the roof rack can be processed independently, thereby improving precision and productivity according to processing.

Although the present invention has been described with reference to the embodiments shown in the drawings, these are merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true technical protection scope of the present invention should be determined by the technical idea of the appended claims.

Claims (3)

It is for simultaneously forming holes of a predetermined shape on the back surface of a loop rack body bent in a predetermined shape along the length direction, and comprises a main frame, a loop rack fixing unit installed on the main frame and fixing the processing portion of the loop rack for mechanical processing so that it faces upward,
It is installed inline on the main guide rail installed on the main frame so as to be adjacent to the above-mentioned roof rack fixing unit, and has the first, second, third, and fourth processing units capable of simultaneously processing each hole in the roof rack fixed by the above-mentioned roof rack fixing unit independently.
The above roof rack fixing unit is characterized by including support blocks which are installed at a predetermined interval on the main frame and have roof rack support grooves formed on the upper surface for processing, a rotation lever which is rotatably installed on a first bracket installed on a side adjacent to each support block and has a pressure pad installed at an end for pressing the upper surface of the roof rack, a pressurizing unit which is installed on a base block fixed to the main frame and has a first actuator for rotating the rotation lever so that the pressure pad can press the upper surface of the roof rack, and a centering unit which is installed on an end of a second bracket installed on the base block and has a centering member mounted on a rod and coupled with a center pin inserted into a center hole of the roof rack supported by the support block. delete In paragraph 1,
The above first processing unit comprises a first transfer table slidably installed along the main guide rail, a first driving unit for moving the first transfer table along the main guide rail for processing, a first body part installed on the first transfer table so as to be moved forward and backward toward the roof rack fixing unit by a second driving unit, a first processing motor installed on the first elevating table so as to be moved up and down by a third driving unit along a first elevating guide rail installed vertically on the front of the first body part, and a first chuck installed at the end of the shaft of the first processing motor and having a tool for machining installed thereon.

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