KR101416413B1 - Correction device of frame for vehicle - Google Patents

Abstract

A calibration device for a vehicle frame is disclosed. The calibration device for the vehicle frame according to an embodiment of the present invention comprises a base frame in which a guide rail is formed on the top in a width direction; a calibration unit for pressing and calibrating a calibration part of the frame calibrated by an inner and an outer calibration blocks while sliding using fluid pressure along the guide rail through each guide block at both sides of the top of the base frame; a clamping unit formed on the rear side of the calibration unit to fix one side of the frame on the top and bottom; and an entry guide member for guiding the frame from the rear side of the clamping unit to the calibration unit by rolling contact.

Description

Technical Field [0001] The present invention relates to a correcting device for a vehicle frame,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to an apparatus for calibrating a vehicle frame, and more particularly, to a calibrating apparatus for a vehicle frame in which a uniform calibration of a frame and a worker are minimized.

Generally, in order to satisfy the needs of various customers with the increasing demand of commercial vehicles, advanced automobile makers have diversified commercial vehicles.

In order to diversify the commercial vehicle, flexible production of the frame, which is the basic element of the commercial vehicle, is essential.

Since conventional production methods using molds and presses have limitations in flexible production, today's advanced automakers are producing rolls of various lengths and widths by roll forming methods using roll forming machines.

In the roll forming method, the formed frame is subjected to a cutting process to cut the required length, and the deformation occurs in 200 mm intervals before and after the cut surface.

After cutting, the cross section of the frame causes a phenomenon that the frame is wrinkled on one side with respect to the cutting line, and the other side is widened.

Normally, the front side of the frame is processed with the front side of the frame, while the side of the front side of the frame is removed by a process of cutting the side face in a subsequent process.

However, when the deck is seated due to a widening phenomenon of the frame, the gap is generated and causes a quality problem.

Conventionally, the operator has corrected the widening phenomenon of such a frame manually using a tool.

In addition, there is a manual calibration method for correcting the widening phenomenon of a frame by using a fixed structure and a hydraulic jaw.

In such a calibration method, the frame is moved to a separate work space, one side of the frame is brought into close contact with the fixed structure, and the hydraulic jockey is positioned on the other side.

When the operator applies pressure to the hydraulic jaw, the piston of the hydraulic jaw advances, and the shape of the frame is corrected using the pressure of the hydraulic jaw and the reaction force in the structure.

However, such a calibration method has many limitations in the calibration of a frame using a high tensile strength plate having a tensile strength of 650 MPa or more as a material.

First, despite the high pressing force, it is impossible to complete the calibration at a time due to the springback phenomenon due to the material characteristics of the frame. After the calibration, the calibration time is also required because measurement and re-calibration are repeated.

In addition, since the operator judges the amount of pressurization depending on the material, it is difficult to obtain a constant calibrated quality when the material or the worker is changed. Also, the amount of pressurization that is too large at the time of calibration causes a quality problem due to deformation of the frame.

Finally, to calibrate the frame, the equipment is stopped, the frame is moved to a separate space using a crane, and then the calibration operation is performed. However, there is also a problem in that the overhead and the productivity are lowered .

An embodiment of the present invention is to provide a calibration apparatus for a vehicle frame in which the width of a frame is uniformly corrected by automatically correcting a width of a frame through quantitative pressurization of a calibration cylinder and inner and outer calibration blocks, do.

In one or more embodiments of the present invention, a base frame having guide rails formed on its upper surface in the width direction, and a pair of guide rails disposed on both sides of the base frame, A calibration unit for pressing and calibrating the calibration portion of the frame to be calibrated by the inner and outer calibration blocks, a clamping unit constituted on the rear side of the calibration unit and fixing one side of the frame at the upper and lower sides, And an entrance guide means for guiding the frame by rolling contact so as to enter the calibration unit.

The calibration unit may include a pair of moving plates provided on both sides of the guide rail on the base frame so as to be slidable through guide blocks, a calibration cylinder provided inward on the both moving plates, An outer jig block which is guided along the width direction on each of the upper and lower plates and is fixed to the rod end of each of the calibration cylinders and on the inner side of which the outer calibrating block is mounted, And an inner jig block which is fixed to an end of the inner calibrating block and is installed to be restored to an initial position by the elastic force of the restoring means and the inner calibrating block is mounted on the outer surface thereof.

In addition, the inner side jig block may be provided with a departure prevention stopper for preventing the frame from being separated from the front side.

The inner and outer calibrating blocks may be formed as inclined surfaces that are inclined toward the inside toward the front.

The restoring means may include guide rods provided on both sides of the base frame in the widthwise direction on both sides of the base frame for guiding both side ends of the inner side jig block in the width direction, To the initial position.

In addition, a guide end for guiding movement of the outer jig block may be formed on the inner upper surface of the both-side moving plate.

The clamping unit may include a lower clamper configured to regulate the lower surface of the frame to be calibrated and configured on the rear side of the center of the base frame and an upper clamper configured on both sides of the base frame to regulate an upper surface of the frame to be calibrated .

The lower clamper may include a lower clamping cylinder installed upward at the center rear side of the base frame and a clamping pad provided at the rod end of the lower clamping cylinder for contacting and supporting the lower surface of the frame to be calibrated.

The upper clamper may include a pair of upper clamping cylinders disposed on both sides of the rear side of the base frame, hinged to both sides of the rear side of the base frame, and hinged to the ends of the rods of the upper clamping cylinders. And a clamping roller which is installed to connect the ends of the both side links and regulates the upper surface of the frame to be calibrated in a rolling contact state.

The entrance guiding means may include a plurality of guide rollers formed on the rear central upper surface of the base frame and guided in rolling contact with the inner and outer sides of one end of the frame.

The guide roller may include a plurality of first guide rollers for guiding the inner surface of the frame to be entered and a plurality of second guide rollers for guiding the outer surface of the frame to be entered, The second guide rollers may be formed to have different lengths.

The embodiment of the present invention has the effect that the width of the frame is uniformly corrected by automatically correcting the width of the frame through the quantitative pressing of the calibration cylinder and the inner and outer calibration blocks.

In addition, there is no need to stop the equipment or move to a separate space for the calibration of the frame, thereby improving work productivity and minimizing the workforce due to the automatic calibration system.

Further, even if the material or the width of the frame is changed, only the inner and outer calibration blocks corresponding to the change of the material or the width of the frame can be replaced. Therefore, the correction amount of the left and right sides of the frame can be changed through the combination of the inner and outer calibration blocks , And products with different amounts of frame left and right can be calibrated.

1 is a front perspective view of a vehicle frame correcting apparatus according to an embodiment of the present invention.
2 is a rear perspective view of a vehicle frame correcting device according to an embodiment of the present invention.
3A to 3G are operational states of a calibration apparatus for a vehicle frame according to an embodiment of the present invention.

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

It is to be understood, however, that the present invention is not limited to the illustrated embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention. .

In order to clearly illustrate the embodiments of the present invention, parts that are not related to the description are omitted.

FIG. 1 is a front perspective view of a vehicle frame correcting apparatus according to an embodiment of the present invention, and FIG. 2 is a rear perspective view of a vehicle frame correcting apparatus according to an embodiment of the present invention.

1 and 2, the apparatus for correcting a vehicle frame 100 according to an embodiment of the present invention corrects both side widths of the frame 101, in which a uniform correction amount of the frame 101 and a working amount .

To this end, the apparatus for calibrating a vehicle frame 100 according to the embodiment of the present invention comprises a base frame 110, a calibration unit 120, a clamping unit 140, and an entry guiding means 160.

A guide rail 111 is formed on the upper surface of the base frame 110 in the width direction.

The calibration unit 120 slides on both sides of the base frame 110 via the guide block 112 and the inner and outer calibration blocks 121 and 122 while sliding along the guide rail 111 using hydraulic pressure. The calibration portion of the frame 101 to be calibrated is pressed and calibrated.

Here, the calibration unit 120 is composed of a side moving plate 123, a calibration cylinder 124, an outer jig block 125, and an inner jig block 126.

The two side moving plates 123 are installed on both sides of the guide rail 111 on the base frame 110 so as to be slidable through guide blocks 112.

The guide plate 127 guides the movement of the outer jig block 125 to the inner upper surface.

The calibration cylinder 124 is installed inwardly on the both-side moving plate 123.

The outer jig blocks 125 are guided along the width direction on the both side moving plates 123 and are fixed to the ends of the rods 128 of the respective calibration cylinders 124, ).

The inner jig block 126 is fixed to each inner end of the both side moving plates 123 at the upper center of the base frame 110 and is installed to be restored to the initial position by the elastic force of the restoring means 180 And the inner calibrating block 121 is mounted on the outer surface.

The inner jig block 126 is mounted on the front upper side with a departure prevention stopper 129 for preventing the frame 101 from coming off.

The inner and outer calibrating blocks 121 and 122 are formed as inclined surfaces that are inclined toward the inside toward the front.

The restoring means 180 mentioned above is composed of a guide rod 181 and a spring 182. [

The guide rods 181 are installed on the front and rear sides of the base frame 110 on both sides along the width direction to guide both side ends of the inner jig block 126 in the width direction.

The spring 182 restores the inner jig block 126 to an initial position while being fitted in the guide rod 181.

The clamping unit 140 is configured on the rear side of the calibration unit 120 and fixes one side of the frame 101 on the upper and lower sides.

Here, the clamping unit 140 includes a lower clamper 141 and an upper clamper 151.

The lower clamper 141 is disposed at the center rear side of the base frame 110 to regulate a lower surface of the frame 101 to be calibrated.

The lower clamper 141 is composed of a lower clamping cylinder 142 and a clamping pad 143.

The lower clamping cylinder 142 is installed upward at the center rear of the base frame 110.

The clamping pad 143 is provided at the tip of the rod 144 of the lower clamping cylinder 142 to support and support the lower surface of the frame 101 to be calibrated.

The upper clamper 151 is disposed at the rear sides of the base frame 110 to regulate the upper surface of the frame 101 to be calibrated.

This upper clamper 151 is composed of both upper side clamping cylinders 152, both side links 153, and a clamping roller 154.

The both side upper clamping cylinders 152 are hinged to the rear sides of the base frame 110, respectively.

The two side links 153 are hingedly connected to both sides of the rear side of the base frame 110 and are hinged to the tips of the rods 155 of the upper side clamping cylinders 152 on both sides.

The clamping roller 154 is installed to connect the ends of the both side links 153 to regulate the upper surface of the frame 101 to be calibrated in a rolling contact state.

The entrance guide unit 160 guides the frame 101 from the rear side of the clamping unit 140 by rolling contact so as to enter the calibration unit 120.

The entrance guiding means 160 is constituted by a plurality of guide rollers 161 formed on the rear central upper surface of the base frame 110 and guided in rolling contact with the inner and outer sides of one end of the entering frame 101 do.

The guide roller 161 includes a plurality of first guide rollers 162 for guiding the inner surface of the entering frame 101 and a plurality of second guide rollers 162 for guiding the outer surface of the entering frame 101. [ And a guide roller 163. The first guide roller 162 and the second guide roller 163 are formed to have different lengths.
According to the entrance guiding means 160, one side of the frame 101 is guided by the conveying robot or the operator to the first guide roller (rear side) in order to enter the frame 101 into the calibration unit 120 side. 162 and the second guide roller 163.
At this time, the second guide roller 163 contacts the outer surface of the frame 101 from the outside of the frame 101, and the first guide roller 162 comes into contact with the inner surface from the inside of the frame 101.
Thereafter, the frame 101, which has entered between the first and second guide rollers 162 and 163, is brought into rolling contact with the first and second guide rollers 163 by the pushing force of the robot or the operator, The entrance of the light is guided to the side of the light source 120.
Hereinafter, the operation of the calibration device for a vehicle frame constructed as described above will be described in detail.

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3A to 3G are operational states of a calibration apparatus for a vehicle frame according to an embodiment of the present invention.

Referring to FIG. 3A, in the apparatus 100 for correcting a vehicle frame according to the embodiment of the present invention, the frame 101 enters the fixed unit 120 by the entrance guide unit 160 (S1).

3B, the frame 101 that has entered the fixed unit 120 is stopped by the escape prevention stopper 129 mounted on the upper side of the inner side jig block 126 (S2).

3C, the lower clamper 141 moves upward to regulate the lower surface of the frame 101. The upper clamper 151 moves downward to stop the upper surface of the frame 101 (S3).

That is, the lower clamper 141 and the upper clamper 151 are fixed so as to prevent the frame 101 from moving by restricting the lower surface and the upper surface of the stationary frame 101, respectively.

When the above steps are completed, the rod 128 of the calibration cylinder 124 is advanced forward toward the outer surface of the frame 101 via the hydraulic pressure.

3D, the outer jig block 125, which is fixed to the tip of the rod 128 of the calibration cylinder 124 and to which the outer calibration block 122 is mounted on the inner surface, Is moved forward by the rod 128, and the outer calibration block 122 is brought into contact with the outer surface of the frame 101 (S4).

After the outer calibration block 122 contacts the outer surface of the frame 101, the rod 128 of the calibration cylinder 124 no longer advances and a reaction force is generated. Due to the reaction force, (124) moves in the opposite direction.

Likewise, due to the reaction force generated in the calibration cylinder 124, the both-side moving plate 123 on which the calibration cylinder 124 is mounted is also moved in the opposite direction on the guide rail 111 through the guide block 112.

The inner jig block 126 mounted on the outer side of the inner jig block 126 is moved to the inner side of the frame 101 And comes into contact with the inner surface.

3E, the frame 101 positioned between the outer calibration block 122 and the inner calibration block 121 is subjected to the pressing force and is subjected to the plastic working process by the shape of the inner and outer calibration blocks 121 and 122 The widening phenomenon of the frame 101 is corrected (S5).

After the calibration step of the frame 101 is completed as described above, the calibration cylinder 124 is operated so that the hydraulic pressure is removed and the rod 128 is operated backward, and the outer jig (not shown) mounted on the rod 128 of the calibration cylinder 124 Block 125 is also reversed.

Referring to FIG. 3F, the spring 182 of the restoring unit 180, which has been compressed by the movement of the both-side moving plate 123, is restored to the original state, and the inner jig block 126 (S6). ≪ / RTI >

Referring to FIG. 3G, when the components are returned to their original positions as described above, the lower clamper 141 that has fixed the frame 101 is lowered, the upper clamper 151 is lifted to release the clamping force, The frame 101 advances to the outside by the operation of the entrance guiding means 160 (S7).

Therefore, the apparatus for correcting a vehicle frame 100 according to the embodiment of the present invention automatically corrects the width of the frame 101 through the quantitative pressurization of the calibration cylinder 124 and the inner and outer calibration blocks 121 and 122, There is an effect that the width of the electrode 101 is uniformly corrected.

In addition, there is no need to stop the equipment or move to a separate space for the calibration of the frame 101, thereby improving work productivity and minimizing the number of workers due to the automatic calibration system.

In addition, even if the material or the width of the frame 101 is changed, only the inner and outer calibrating blocks 121 and 122 corresponding to the frame 101 need to be replaced. Therefore, it is possible to flexibly cope with the change of the inner and outer calibrating blocks 121 and 122, The right and left correction amounts of the frame 101 can be made different from each other, so that products with different left and right wing amounts of the frame 101 can be corrected.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And all changes to the scope that are deemed to be valid.

100 ... vehicle frame correcting device 101 ... frame
110 ... base frame 111 ... guide rail
112 ... guide block 120 ... calibration unit
121 ... inner calibrated block 122 ... outer calibrated block
123 ... both side moving plates 124 ... calibration cylinder
125 ... outer jig block 126 ... inner jig block
127 ... guide 128 ... load
129 ... escape prevention stopper 140 ... clamping unit
141 ... lower clamper 142 ... lower clamping cylinder
143 ... clamping pad 144 ... rod
151 ... upper clamper 152 ... upper clamping cylinder
153 ... Both side links 154 ... Clamping roller
155 ... load 160 ... entry guide means
161 ... Guide roller 162 ... First guide roller
163 ... second guide roller 180 ... restoring means
181 ... guide rod 182 ... spring

Claims (11)

A base frame having a guide rail on its upper surface in a width direction;
A calibration unit which presses and calibrates the calibration portion of the frame to be calibrated by each of the inner and outer calibrating blocks while sliding on the both sides of the upper side on the base frame using the oil pressure along the guide rail through the guide block;
A clamping unit which is disposed on the rear side of the calibration unit and fixes one side of the frame at the upper and lower sides; And
Entry guide means for guiding the frame from the rear side of the clamping unit by rolling contact so as to enter the calibration unit;
And a control unit for controlling the vehicle frame. The method according to claim 1,
The calibration unit
A pair of side moving plates slidably installed on both sides of the guide rail on the base frame through guide blocks;
A calibration cylinder installed inwardly on the both moving plates;
An outer jig block which is guided along the width direction on the both moving plates and is fixed to the rod end of each of the calibration cylinders, and the inner side surface is mounted with the outer calibration block; And
An inner jig block fixed to each inner end of the both moving plates at an upper center of the base frame and restored to an initial position by an elastic force of the restoring means,
Wherein the first and second frames are disposed on the vehicle frame. 3. The method of claim 2,
The inner jig block
And a release preventing stopper for preventing the frame from being released is mounted on the front upper side. 4. The method according to any one of claims 1 to 3,
The inner and outer calibration blocks
Wherein the inclined surface is inclined toward the inside toward the front side. 3. The method of claim 2,
The restoration means
Guide rods provided on both sides of the base frame in the widthwise direction on the front and rear sides thereof to guide both side ends of the inner side jig block in the width direction; And
A spring for restoring the inner jig block to an initial position while being fitted to the guide bar;
And a control unit for controlling the operation of the vehicle frame. 3. The method of claim 2,
The double-
And a guide end for guiding movement of the outer jig block is formed on an inner upper surface of the inner frame. The method according to claim 1,
The clamping unit
A lower clamper formed on the center rear side of the base frame for regulating the lower surface of the frame to be calibrated; And
An upper clamper disposed on both sides of the rear of the base frame to regulate an upper surface of the frame to be calibrated;
Wherein the first and second frames are arranged in parallel with each other. 8. The method of claim 7,
The lower clamper
A lower clamping cylinder installed upward at a center rear side of the base frame; And
A clamping pad installed at the rod end of the lower clamping cylinder for contacting and supporting the lower surface of the frame to be calibrated;
Wherein the first and second frames are arranged in parallel with each other. 8. The method of claim 7,
The upper clamper
Side upper clamping cylinders hinged to both sides of the rear side of the base frame;
A pair of links each hinged to both sides of the rear side of the base frame and hinged to the rod ends of the upper clamping cylinders on both sides, And
A clamping roller connected to each of the ends of the two side links and regulating an upper surface of the frame to be calibrated in a rolling contact state;
Wherein the first and second frames are arranged in parallel with each other. The method according to claim 1,
The entry guiding means
And a plurality of guide rollers formed on the rear central upper surface of the base frame and guided in rolling contact with the inner and outer sides of one end of the frame to be introduced. 11. The method of claim 10,
The guide roller
A plurality of first guide rollers for guiding the inner surface of the frame to be entered and a plurality of second guide rollers for guiding outer surfaces of the frames to be entered, Is formed differently from that of the vehicle frame.

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