KR102555471B1 - Apparatus of cutting and processing for improvement NVH of vehicle - Google Patents

Abstract

A raw material loading unit in which an elastic plate-shaped material is located; Primary cutting unit for cutting the plate-shaped material parallel to the x-axis or y-axis; After primary cutting, a plurality of rod-shaped materials are simultaneously inputted, and one side is cut to have a predetermined angle with respect to the Z-axis to form a secondary cutting unit to form a pad for NVH improvement; a controller that sets cutting conditions for the primary cutting unit and the secondary cutting unit according to the size, shape, and quantity of the pad; and a separate/discharge unit that automatically takes out and separates each of the pads manufactured in different sizes and shapes.

Description

Apparatus of cutting and processing for improvement NVH of vehicle}

The present invention relates to a molding processing apparatus for a pad for improving NVH of a vehicle, which can increase work stability through an automated process, reduce worker's production fatigue, and reduce the occurrence of deviation in molded products. It's about a molding machine.

Noise or vibration continuously generated during the driving process may make the driver's nerves sensitive and cause anxiety, which may reduce the concentration of driving and lead to the risk of an accident. So, recently, NVH status is being evaluated as one of the comprehensive technical level evaluations when manufacturing vehicles.

NVH stands for Noise, Vibration, and Harshness accompanied by shock. N is an unpleasant noise, and its level is measured in decibels (dB), and it is divided into two types: indoor noise generated from various parts of the car and other external noise. V includes the vibration that occurs simultaneously with engine operation and the minute vibration of the vehicle while driving, and can be measured in Hertz (Hz), a unit of frequency. It can be classified as external vibration that is transmitted to the vehicle through the tire and suspension due to friction with the vehicle. H refers to the shocking noise and vibration generated when passing speed bumps or railways installed on roads, etc.

When driving for a long time in a vehicle blocked from the outside world, it is often sensitive to minute vibrations and noise. Driving sensitivity is one of the most important factors in recent automobile development, and technology development to reduce NVH is continuing.

To dampen high vibrations in the headline part of the vehicle, pads made of PE (Polyethylene) foam, which has high toughness, excellent chemical resistance, and excellent cushioning properties and compressive strength due to porous foam, are placed between the parts inside the headline part. , the vibration and noise of the vehicle are absorbed and reduced by being interposed between the parts and the frame, between the frame and the cover, etc.

However, since PE foam has low hardness and elasticity, angle deviations may occur between workpieces during manual cutting, and due to elasticity, slippage during cutting may cause defects in the cut surface. In addition, since the deviation occurrence range is different depending on the skill level of the operator, and there is a risk of injury due to a slipping phenomenon during cutting due to direct exposure to the blade, a high level of concentration is required, and thus the fatigue of the operator is also increased.

Therefore, it can be seen that it is necessary to develop technology for molding processing of pads for improving NVH of vehicles.

Korean Patent Publication No. 10-2011-0119990 (Publication date: 2011. 11. 03.) Korean Patent Publication No. 10-2016-0119948 (Publication date: 2016. 10. 17.)

The technical problem to be achieved by the present invention is to increase the stability of the cutting operation regardless of the operator's skill level through an automated process, to reduce the worker's production fatigue, and to form a pad for improving the NVH of a vehicle that can secure the stability of the operation. The purpose is to provide a device.

In addition, another technical problem to be achieved by the present invention is to provide a molding and processing device for a pad for improving NVH of a vehicle capable of molding and processing a pad having a uniform and various angled cut surface regardless of the hardness and elasticity of the material. there is

The object of the present invention is not limited to the above-mentioned object, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

In order to solve the above problem, the present invention includes a raw material loading unit in which an elastic plate-shaped material is located; Primary cutting unit for cutting the plate-shaped material parallel to the x-axis or y-axis; After primary cutting, a plurality of rod-shaped materials are simultaneously inputted, and one side is cut to have a predetermined angle with respect to the Z-axis to form a secondary cutting unit to form a pad for NVH improvement; a controller that sets cutting conditions for the primary cutting unit and the secondary cutting unit according to the size, shape, and quantity of the pad; and a separate/discharge unit that automatically takes out and separates each of the pads manufactured in different sizes and shapes.

The raw material loading unit includes an input table on which the plate-shaped material is seated, a support frame supporting the input table, an alignment plate located on one side of the input table and supporting one side of the plate-shaped material, and the input table It protrudes to the upper side of the plate-shaped material may include a moving plate for horizontally moving a predetermined distance.

The primary cutting unit includes a first disc wheel for cutting the plate-shaped material provided from the raw material loading unit, a transfer member for horizontally moving the first disc wheel, and a waiting table on which a plurality of materials molded into a bar are waiting. can include

The molding and processing device of the pad for improving NVH of the vehicle may include a primary transfer unit for aligning the rod-shaped material provided from the primary cutting unit and transferring it to the secondary cutting unit.

The molding and processing device of the pad for improving NVH of the vehicle may include a secondary transport unit for transporting and waiting for the bar-shaped material before being supplied to the secondary cutting unit.

The molding and processing device of the pad for improving NVH of the vehicle may include a secondary cutting alignment guide unit for aligning the rod-shaped material before the rod-shaped material is supplied to the secondary cutting unit.

The secondary cutting alignment guide unit includes an aligning member for aligning both end surfaces of the bar-shaped material so that they come into contact with each other to form a plate shape before secondary cutting, and a clamp member for fixing the bar-shaped material during secondary cutting. can

The secondary cutting unit may include a second disk wheel for cutting the bar-shaped material in the Z-axis, and a robot arm for adjusting an inclination angle and position of the second disk wheel.

The molding and processing device of the pad for improving NVH of the vehicle may include a disk wheel cleaning unit for cleaning a cutting edge of the second disk wheel.

The molding and processing device for improving the NVH pad of a vehicle according to an embodiment of the present invention has the advantages of increasing work stability through an automated process, reducing worker's production fatigue, and securing work stability regardless of the operator's skill level. there is In addition, there is an effect of molding and processing a pad having a uniform and various angled cut surfaces regardless of the hardness and elasticity of the material.

1 is a top view of a molding and processing apparatus for a pad for improving NVH of a vehicle according to an embodiment of the present invention;
2 is a perspective view showing a raw material loading part and a primary cutting part of a molding processing apparatus for a pad for improving NVH of a vehicle according to an embodiment of the present invention;
3 is a perspective view showing a primary cutting part of a molding and processing apparatus for a pad for improving NVH of a vehicle according to an embodiment of the present invention;
4 is a perspective view showing a secondary cutting unit, a secondary cutting alignment guide unit, and a separate discharge unit of a molding and processing apparatus for a pad for improving NVH of a vehicle according to an embodiment of the present invention;
5 is a perspective view showing an alignment member of a secondary cutting alignment guide part of a molding and processing apparatus for a pad for improving NVH of a vehicle according to an embodiment of the present invention;
6 is a perspective view showing a clamp member of a secondary cutting alignment guide part of a molding and processing apparatus for a pad for improving NVH of a vehicle according to an embodiment of the present invention;
7 is a perspective view showing a disk wheel cleaning unit of a molding and processing apparatus for a pad for improving NVH of a vehicle according to an embodiment of the present invention;
8 is a photograph showing disk wheel cleaning using a disk wheel cleaning unit of a molding and processing apparatus for a pad for improving NVH of a vehicle according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments introduced below are provided as examples to sufficiently convey the spirit of the present invention to those skilled in the art. Accordingly, the present invention may be embodied in other forms without being limited to the embodiments described below. Also, in the drawings, the lengths and thicknesses of layers and regions may be exaggerated for convenience. Like reference numbers indicate like elements throughout the specification.

1 is a top view of a molding and processing apparatus for a pad for improving NVH of a vehicle according to an embodiment of the present invention, and FIG. 3 is a perspective view showing a primary cutting part of a molding processing apparatus for a pad for improving NVH of a vehicle according to an embodiment of the present invention, and FIG. 4 is a perspective view showing a primary cutting part for improving NVH of a vehicle according to an embodiment of the present invention. A perspective view showing a secondary cutting unit, a secondary cutting alignment guide unit, and a separate discharge unit of the pad molding and processing device. FIG. 5 is a secondary cutting alignment guide of the pad molding and processing device for improving NVH of a vehicle according to an embodiment of the present invention. 6 is a perspective view showing a clamp member of the secondary cutting alignment guide part of the molding processing apparatus of the pad for improving NVH of a vehicle according to an embodiment of the present invention, FIG. A perspective view showing a disk wheel cleaning unit of a molding and processing apparatus for a pad for improving NVH of a vehicle, and FIG. am.

1 to 8, a molding processing apparatus 10 for a pad for improving NVH of a vehicle according to an embodiment of the present invention includes a raw material loading unit 100 in which an elastic plate-shaped material 1 is located; Primary cutting unit 200 for cutting the plate-shaped material 1 parallel to the x-axis or y-axis; A secondary cutting unit 600 for forming a pad for NVH improvement by simultaneously inputting a plurality of materials molded into a rod shape after primary cutting, cutting one side to have a predetermined angle with respect to the Z axis; a controller that sets cutting conditions for the primary cutting unit 200 and the secondary cutting unit 600 according to the size, shape, and quantity of the pad; and a separate/discharge unit 800 which automatically takes out and separates each of the pads manufactured in different sizes and shapes.

The molding processing apparatus 10 of the pad for improving the NVH of the vehicle arranges a plurality of transfer conveyors, and as shown by the arrow S in FIG. Afterwards, automatic input of raw materials and automatic discharge of pads, which are finished products, can be performed until product classification and residual amount discharge. Therefore, although the loading of the plate-shaped material 1 can be considered to be done manually, all processes thereafter can be performed automatically.

In detail, the elastic plate-shaped material 1 may be, for example, PE (Polyethylene)-based foam, and the raw material loading unit 100 where the plate-shaped material 1 is located is an area where a worker loads the raw material PE material. As a result, it can be designed in consideration of worker safety, accessibility, and minimization of movement.

The raw material loading unit 100 includes an input table 110 on which the plate-shaped material 1 is seated, a support frame 120 supporting the input table 110, and one side of the input table 110. An alignment plate 130 positioned to support one side of the plate-shaped material 1 and a moving plate protruding to the upper side of the input table 110 to horizontally move the plate-shaped material 1 by a predetermined distance ( 140) may be included. That is, when the plate-shaped material 1 is positioned on the input table 110 and the moving plate 140 moves toward the cutting part 200 along the guide groove 150 formed in the input table 110, the moving plate ( The plate-shaped material 1 located in contact with 140 may also move toward the primary cutting unit 200 . In this case, one side of the plate-shaped material 1 is supported and moved by the alignment plate 130, so that the plate-shaped material 1 can be moved while maintaining a horizontal state. In this case, the movement distance of the moving plate 140 may correspond to the horizontal or vertical length of the NVH improving pad of the vehicle. That is, when the moving plate 140 connected to the servo motor presses the plate-shaped material 1 to the primary cutting unit 200 and stops in response to the horizontal or vertical length of the pad, the primary cutting unit 200 ), the plate-shaped material 1 is cut, and then the plate-shaped material 1 is cut parallel to the x-axis or y-axis by repeating the sequential process of moving the moving plate 140 to a predetermined length, The plate-shaped material 1 may be molded into a plurality of rod shapes.

The primary cutting unit 200 for cutting the plate-shaped material 1 parallel to the x-axis or the y-axis is a first disk wheel 210 for cutting the plate-shaped material 1 provided from the raw material loading unit 100 ), a first disk wheel driving means 220 for horizontally moving the first disk wheel 210, and a waiting table 230 on which a plurality of rod-shaped materials are waiting. That is, the first disk wheel 210 rotates and horizontally moves in the space 240 between the standby table 230 and the input table 110 to cut the plate-shaped material 1 . In this case, the plate-shaped material 1 is fixed to the space between the waiting table 230 and the input table 110, so that the input table 110 is provided with a clamp to fix the plate-shaped material 1, thereby cutting operation. It is possible to minimize the occurrence of deviation by preventing the heavy material 1 from slipping.

The molding and processing apparatus 10 of the pad for improving the NVH of the vehicle includes a primary transfer unit 300 that aligns the bar-shaped material provided from the primary cutting unit 200 and transfers it to the secondary cutting unit 600 It may include, for example, the primary transfer unit 300 may include a first conveyor member for transfer. The number of primary cut bar materials can be varied according to the thickness of the pad, which is the finished product, to improve productivity, and the exact position of the cut material is identified through the control of the servo motor to determine all the plurality of bar types that have been cut. It is possible to transfer the material of through the first conveyor member.

In addition, the molding and processing apparatus 10 of the pad for improving NVH of the vehicle includes a secondary transfer unit 400 for transporting and waiting for the bar-shaped material before being supplied to the secondary cutting unit 600. can do. For example, the secondary transfer unit 400 is used to move the material from the primary cutting unit 200 to the secondary cutting unit 600 and to enter the secondary cutting after the primary cutting is completed with the second conveyor member 420. It may be provided with a queuing member 410 in which guide work is performed to match the front and front lines of entry. By providing the queuing member 410, it is possible to prevent bottlenecks from occurring due to a difference between the speed of the primary cutting and the secondary cutting, and by providing the second conveyor member 420, the secondary cutting unit 600 ), it is possible to ensure the safety of workers because the entry of the material toward the can be made automatically.

The cycles and cutting speeds of the primary cutting process on the xy plane and the secondary cutting process on the z-axis may have deviations from each other. This can be solved by transferring the queuing member 410, that is, the first disc wheel 210 connected to the first disc wheel driving means 220 for multi-cutting of the primary cutting performs cutting and return of each item. It is possible to repeatedly cut several times according to the quantity optimized for the pad, collect them on the second conveyor member 420 and transfer them to the queue member 410 for buffering the bottleneck of the secondary cutting at once. Through this, even if multi-cutting of the primary cutting is performed, it is possible to secure process time margin for the secondary cutting, which is the Z-axis cutting, which is performed later, so that continuous and smooth secondary cutting can be continuously performed.

Furthermore, the molding processing apparatus 10 of the pad for improving NVH of the vehicle includes a secondary cutting alignment guide unit for aligning the bar-shaped material before the bar-shaped material is supplied to the secondary cutting unit 600 ( 500) may be included. After the 1st cutting is completed, the guiding work can be done in the 2nd cutting alignment guide part 500 to align the entry front line of the plurality of bar-shaped materials before entering the 2nd cutting, and for left alignment based on the moving direction, Alignment can be done through other guides.

The control unit may set cutting conditions for the primary cutting unit 200 and the secondary cutting unit 600 according to the size, shape, and quantity of the pads, and the secondary cutting alignment guide unit 500 may also be connected to the control unit. can In order to advance the material for the second cutting after the first cutting through the control unit that processes various information data such as the size of the final product, the height of the pad, the height of the raw material, and the conveying direction of the material, the control unit is a third conveyor member (530 ) and the precise control of the movement distance through the servo motor, the error of the product can be minimized. For example, the third conveyor member 530 may be provided with a clamp, a roller, and a servo motor to move up and down to perform transport considering the height of the rod-shaped material.

For example, the secondary cutting alignment guide unit 500 includes an alignment member 510 for aligning both end surfaces of the bar-shaped material so that they come into contact with each other to form a plate shape before the secondary cutting, and the bar-shaped material during the secondary cutting. It may be provided with a clamp member 520 for fixing the material.

The alignment member 510 includes a guide bar 511 in contact with one end surface of the bar-shaped material, and a guide bar support that is connected to the guide bar 511 to support it and move it in one direction at a predetermined interval. 513, a drive source 515 connected to the guide bar support 513, and an alignment member frame 517 having a rail on which the drive source 515 is mounted and on which the guide bar support 513 moves. can include That is, in the alignment member 510, the guide bar 511 is in contact with one of the rod-shaped materials and pushed in one direction (to the secondary cutting part) by the drive of the guide bar support 513, and the plurality of rod-shaped materials are secondary. It can be aligned in a plate shape under the cutting part 600.

The clamp member 520 includes a clamping bar 521 for fixing the bar-shaped material during secondary cutting by pressing the plurality of bar-shaped materials aligned by the alignment member 510 vertically and in the longitudinal direction, and the clamping bar A linear robot 523 for vertically moving the 521, a servo drive means 525 for driving the linear robot 523, and a support 527 for supporting the linear robot 523 and the servo drive means 525. ) may be included.

As another example, the secondary cutting alignment guide unit 500 may have the same configuration as the secondary transport unit 400 .

After primary cutting, a plurality of materials molded into rods are simultaneously inputted, and one side is cut to have a predetermined angle with respect to the Z-axis to form a pad for NVH improvement. The secondary cutting unit 600, It may be provided with a second disk wheel 610 that cuts large materials in the Z-axis, and a robot arm 630 that adjusts the inclination angle and position of the second disk wheel 610. The secondary cutting unit 600 has a configuration in which secondary cutting is performed using the robot arm 630, and angle cutting based on the Z axis may be performed. For example, control of the robot arm may be controlled through a Hi5a controller, and for multi-cutting at various angles of the Z axis, the robot arm 630 may have 6 degrees of freedom in the form of vertical multi-joints. In the case of the second disk wheel 610, the rotation speed can be controlled through the servo motor and the reducer 620, and in the case of Z-axis angle cutting, it can be cut at a preset angle value through the robot arm 630. A robot gripper is positioned at one end of the robot arm 630 to mount the second disk wheel 610, and the rotational speed of the second disk wheel 610 can be determined through a control unit. For example, the operation of the robot arm 630 may also be performed in conjunction with an electric control unit (PLC) through CC-Link communication.

During the secondary cutting, vertical and horizontal clamping can be performed depending on the physical properties of the material such as thickness and elasticity, and the quality of the finished product can be further improved by adjusting the forward speed of the robot arm 630 by reflecting the physical properties of the material. . In addition, since the secondary cutting has a slower cutting speed than the primary cutting, in the secondary cutting, multiple cutting is performed to cut a plurality of bar-shaped materials arranged side by side due to the secondary cutting alignment guide part 500. it is desirable

The completed pad after the secondary cutting can be transported through the fourth conveyor member 540. The remaining amount that does not meet the standard in the residual amount discharge port 700 installed on one side of the secondary cutting unit 600, that is, the front end during cutting In order to meet the line, the first cut pad and the last remaining material can be collected and separated separately from the finished product pad.

In addition, the separation/discharge unit 800 for automatically taking out and separating pads manufactured in different sizes and shapes includes a sorter 801 to automatically separate and collect the pads into the product storage box 810 according to the size and shape. The separated and discharged pads may stop the molding machine 10 when the production target amount is reached according to a pre-input value in the control unit, and may request the operator to organize the product storage box 810 through an alarm.

The molding and processing apparatus 10 of the pad for improving NVH of the vehicle may include a disk wheel cleaning unit 900 for cleaning the cutting edge of the second disk wheel 610 . A pad made of PE foam, a synthetic material, may cause a phenomenon in which the blade becomes dull due to the adhesive component generated after cutting, which may cause the cutting surface of the pad to become uneven. That is, if the cutting edge of the disk wheel is not cleaned, a defect in which the cutting surface of the pad is uneven may occur, which may lead to a decrease in product quality and an increase in consumption of raw materials. Therefore, by providing the disk wheel cleaning unit 900 for cleaning the cutting edge, it is possible to remove foreign substances on the cutting edge during the cutting process, and thereby, the quality of the finished pad can be further improved. For example, the disk wheel cleaning unit 900 includes a cleaning disk 920 made of felt, a driving source 910 for driving the cleaning disk 920, and a frame supporting and moving the cleaning disk 920. It may include a member 930, and may further include an air cleaning member (not shown) for removing cleaned foreign substances.

The molding and processing device for improving the NVH of a vehicle according to an embodiment of the present invention has the advantage of increasing work stability through an automated process, reducing worker's production fatigue regardless of worker's skill level, and securing work stability. . In addition, there is an effect of molding and processing a pad having a uniform and various angled cut surfaces regardless of the hardness and elasticity of the material.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the claims below. You will understand that it can be done.

One; plate-shaped material
10; Molding and processing device for pads for vehicle NVH improvement
100; Raw material loading department
110; input table
120; support frame
130; alignment plate
140; moving plate
150; guide home
200; 1st cutting part
210; 1st disc wheel
220; disk wheel drive
230; waiting table
300; 1st transfer part
400; 2nd transport part
410; no queue
420; Second conveyor member
500; 2nd cutting alignment guide part
510; alignment member
520; clamp member
530; Third conveyor member
540; 4th conveyor member
600; 2nd cutting part
610; 2nd disc wheel
620; reducer
630; robot arm
700; Residual discharge port
800; Separate discharge unit
900; disk wheel cleaning
910; driving source
920; cleaning disc
930; frame member

Claims (9)

A raw material loading unit in which an elastic plate-shaped material is located;
Primary cutting unit for cutting the plate-shaped material parallel to the x-axis or y-axis;
After primary cutting, a plurality of rod-shaped materials are simultaneously inputted, and one side is cut to have a predetermined angle with respect to the Z-axis to form a secondary cutting unit to form a pad for NVH improvement;
a controller that sets cutting conditions for the primary cutting unit and the secondary cutting unit according to the size, shape, and quantity of the pad; and
Separation and discharge unit for automatically taking out and separating each pad manufactured in a different size and shape;
A secondary cutting alignment guide unit for aligning the bar-shaped material before the bar-shaped material is supplied to the secondary cutting unit;
The secondary cutting unit is a pad for improving NVH of a vehicle, characterized in that it includes a second disk wheel for cutting the bar-shaped material in the Z-axis, and a robot arm for adjusting an inclination angle and position of the second disk wheel. molding machine.
According to claim 1,
The raw material loading unit includes an input table on which the plate-shaped material is seated, a support frame supporting the input table, an alignment plate located on one side of the input table and supporting one side of the plate-shaped material, and the input table A molding processing apparatus for a pad for improving NVH of a vehicle, characterized in that it includes a moving plate protruding to the upper side of the plate-shaped material to horizontally move the plate-shaped material by a predetermined distance.
According to claim 1,
The primary cutting unit includes a first disk wheel for cutting the plate-shaped material provided from the raw material loading unit, a first disk wheel driving means for horizontally moving the first disk wheel, and a plurality of materials molded into a rod shape. A molding processing apparatus for a pad for improving NVH of a vehicle, comprising a waiting table.
According to claim 1,
The molding and processing device of the pad for improving NVH of the vehicle comprises a primary transfer unit for aligning the rod-shaped material provided from the primary cutting unit and transferring it to the secondary cutting unit. of molding processing equipment.
According to claim 1,
The molding and processing device of the pad for improving NVH of the vehicle comprises a secondary transport unit for transporting and waiting for the rod-shaped material before being supplied to the secondary cutting unit. molding machine.
delete According to claim 1,
The secondary cutting alignment guide unit includes an aligning member for aligning both end faces of the bar-shaped material so that they come into contact with each other to form a plate shape before secondary cutting, and a clamp member for fixing the bar-shaped material during secondary cutting. A molding processing apparatus for a pad for improving the NVH of a vehicle.
delete According to claim 1,
The molding and processing apparatus of the NVH improvement pad of the vehicle comprises a disk wheel cleaning unit for cleaning the cutting edge of the second disk wheel.

Images