KR20220081685A - Apparatus of cutting and processing for improvement NVH of vehicle - Google Patents

Abstract

A raw material loading unit in which the elastic plate-shaped material is located; a primary cutting unit for cutting the plate-shaped material parallel to the x-axis or the y-axis; a second cutting unit in which a plurality of rod-shaped materials are simultaneously fed after the primary cutting, and one side is cut to have a predetermined angle with respect to the Z-axis to form a pad for improving NVH; a control unit configured to set cutting conditions of the first 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 pad manufactured to have different sizes and shapes.

Description

Apparatus of cutting and processing for improvement NVH of vehicle

The present invention relates to an apparatus for molding and processing a pad for improving NVH of a vehicle, which can increase work stability through an automated process, reduce production fatigue of workers, and reduce variation in molded products. It relates to a molding processing apparatus.

Noise or vibration continuously generated during the driving process can make the driver's nerves sensitive and cause anxiety, which can lower the concentration of driving and bring the risk of an accident. So, recently, NVH status is being evaluated as one of the comprehensive technology level evaluations during vehicle manufacturing.

NVH stands for Noise, Vibration, and Noise and Harshness accompanying impact. N is an unpleasant noise, whose level is measured in decibels (dB), and is divided into two types: indoor noise and other external noise generated from various parts of the car. V includes vibrations that occur simultaneously with engine operation and minute vibrations of the vehicle while driving, and can be measured in hertz (Hz), a unit of frequency. It can be divided into external vibration transmitted to the vehicle through the tire and suspension due to friction with the vehicle. H stands for shocking noise and vibration that occurs when passing through speed bumps or railroad tracks installed on the road.

Driving for a long time in a car that is blocked from the outside is often sensitive to minute vibrations and noises. In recent automobile development, driving sensitivity is one of the most important factors, and technology development to reduce NVH continues.

For high vibration damping of the vehicle's headline part, a pad made of PE (Polyethylene) foam, which has high toughness, excellent chemical resistance, and excellent cushioning, flexibility and compressive strength due to porous foam, is placed between the parts inside the headline part. , between parts and the frame, between the frame and the cover, etc. to absorb and reduce the vibration and noise of the vehicle.

However, since PE foam has low hardness and elasticity, there may be angular deviations between the workpieces during manual cutting, and due to elasticity, the cutting surface may be defective due to pushing during cutting. In addition, the range of occurrence of deviation is different depending on the skill level of the operator, and since there is a risk of injury due to the sliding phenomenon during cutting due to direct exposure to the blade, there is a problem in that high concentration is required and the fatigue of the operator is also increased.

Therefore, it can be seen that it is necessary to develop a technology for the molding processing of the pad for improving the NVH of the vehicle.

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

The technical problem to be achieved by the present invention is to increase the cutting operation stability regardless of the operator's skill level through an automated process, reduce the production fatigue of the operator, and secure the operation stability of the NVH improvement pad of the vehicle An object of the present invention is to provide a device.

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

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

In order to solve the above problem, the present invention provides a raw material loading unit in which the elastic plate-shaped material is located; a primary cutting unit for cutting the plate-shaped material parallel to the x-axis or the y-axis; a second cutting unit in which a plurality of rod-shaped materials are simultaneously fed after the primary cutting, and one side is cut to have a predetermined angle with respect to the Z-axis to form a pad for improving NVH; a control unit configured to set cutting conditions of the first cutting unit and the secondary cutting unit according to the size, shape, and quantity of the pad; And it is possible to provide a molding and processing apparatus of the pad for improving NVH of a vehicle comprising a; and a separate discharge unit for automatically taking out and separating each pad manufactured differently in size and shape.

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

The primary cutting unit includes a first disk wheel for cutting the plate-shaped material provided from the raw material loading unit, a transfer member for horizontally moving the first disk wheel, and a waiting table on which a plurality of rod-shaped materials are waiting may include

The apparatus for forming and processing 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 apparatus for forming and processing the pad for improving NVH of the vehicle may include a secondary transfer unit for transferring and waiting for the material to be transferred before the rod-shaped material is provided to the secondary cutting unit.

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

The secondary cutting alignment guide unit includes an aligning member for aligning both end surfaces of the rod-shaped material to form a plate in contact with each other before secondary cutting, and a clamp member for fixing the rod-shaped material during secondary cutting can

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

The apparatus for forming and processing 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.

Advantages of being able to increase work stability through an automated process, reduce worker's production fatigue, and secure work stability, regardless of the skill level of the worker There is this. In addition, there is an effect that can mold and process a pad having a uniform and various cut surfaces regardless of the hardness and elasticity of the material.

1 is a top view of an apparatus for molding and processing 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 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 part, a secondary cutting alignment guide part, and a separate discharge part 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 the alignment member of the secondary cutting alignment guide part of the molding processing apparatus for the NVH improvement pad of the vehicle according to the embodiment of the present invention;
6 is a perspective view showing a clamp member of a secondary cutting alignment guide part of a molding processing apparatus for a pad for improving NVH of a vehicle according to an embodiment of the present invention;
7 is a perspective view illustrating a disk wheel cleaning unit of an apparatus for molding and processing a pad for improving NVH of a vehicle according to an embodiment of the present invention;
8 is a photograph illustrating disk wheel cleaning using a disk wheel cleaning unit of an apparatus for molding and processing 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 so that the spirit of the present invention can be sufficiently conveyed to those skilled in the art. Accordingly, the present invention is not limited to the embodiments described below and may be embodied in other forms. And, in the drawings, the length, thickness, etc. of layers and regions may be exaggerated for convenience. Like reference numerals refer to like elements throughout.

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

1 to 8, the forming and processing apparatus 10 of the pad for improving NVH of a vehicle according to an embodiment of the present invention includes a raw material loading unit 100 in which the elastic plate-shaped material 1 is located; a primary cutting unit 200 for cutting the plate-shaped material 1 parallel to the x-axis or the y-axis; A secondary cutting unit 600 for forming a pad for improving NVH by cutting a plurality of materials formed into a bar shape after the primary cutting, and cutting one side to have a predetermined angle with respect to the Z-axis; a control unit for setting cutting conditions of the first 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 for automatically taking out and separating each pad manufactured in different sizes and shapes.

The apparatus 10 for forming and processing the NVH improvement pad of the vehicle arranges a plurality of conveying conveyors to arrange, as shown in the arrow (S) of FIG. Automatic input of raw materials and automatic discharge of pad, which is a finished product, can be made after product classification and residual quantity discharge. Therefore, it can be seen that the loading of the plate-shaped material 1 is done manually, but all processes thereafter can be made automatically.

In detail, the elastic plate-shaped material 1 may be, for example, a PE (Polyethylene)-based foam, and the raw material loading unit 100 in which the plate-shaped material 1 is located is an area where the operator loads the raw material PE material. Therefore, it can be designed considering the safety and accessibility of workers and the 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 for 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 from the upper surface 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 unit 200 along the guide groove 150 formed in the input table 110 , the moving plate ( The plate-shaped material 1 positioned in contact with the 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 to maintain a horizontal state and the plate-shaped material 1 can be moved. In this case, the moving distance of the moving plate 140 may correspond to the horizontal or vertical length of the pad for improving NVH of the vehicle. That is, in response to the horizontal or vertical length of the pad, when the moving plate 140 connected to the servo motor presses and pushes the plate-shaped material 1 to the primary cutting unit 200 and stops, 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 the y-axis by repeating the sequential process in which the moving plate 140 moves to a predetermined length again, The plate-shaped material 1 may be molded and processed into a plurality of rods.

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 spaced apart between the waiting table 230 and the input table 110 to cut the plate-shaped material 1 . In this case, the input table 110 is provided with a clamp so that the plate-shaped material 1 is fixed in the spaced apart space between the waiting table 230 and the input table 110 to fix the plate-shaped material 1 by fixing the cutting operation. By preventing the heavy material 1 from being pushed, it is possible to minimize the occurrence of deviation.

The apparatus for molding and processing the NVH improvement pad of the vehicle (10) aligns the rod-shaped material provided from the primary cutting unit (200) and transfers it to the secondary cutting unit (600). The primary transfer unit (300) may include, for example, the primary transfer unit 300 may include a first conveyor member for transfer. The number of first-cut rod-shaped materials can be variably changed depending on the thickness of the finished product pad to improve productivity, and the control of the servo motor identifies the exact location of the cut material and all the plurality of cut rod-type materials of may be transferred through the first conveyor member.

In addition, the molding and processing apparatus 10 of the pad for improving the NVH of the vehicle includes a secondary transfer unit 400 for transferring and waiting the material before the rod-shaped material is provided to the secondary cutting unit 600 . can do. For example, the secondary transfer unit 400 includes the second conveyor member 420 for moving the material from the primary cutting unit 200 to the secondary cutting unit 600 and entering the secondary cutting after the primary cutting is completed. It may be provided with a queue member 410 in which a guide operation is performed in order to match the front, entry front end line. By providing the queue member 410, it is possible to prevent the occurrence of a bottleneck caused by the difference between the speed of the primary cutting and the speed of the secondary cutting, and by providing the second conveyor member 420, the secondary cutting unit 600 ) to ensure the safety of the operator because the entry of the material can be made automatically.

The cycle and cutting speed of the primary cutting process of the xy plane and the secondary cutting process of the z-axis may have deviations from each other. This can be solved by transferring the to the queue member 410, that is, the first disk wheel 210 connected to the first disk wheel driving means 220 for multiple cutting of the primary cutting performs cutting and return of each item. It can be repeatedly cut several times according to the quantity optimized for the pad, and collected on the second conveyor member 420 and transferred to the queue member 410 for buffering the bottleneck of the secondary cutting at once. Through this, even if the multi-cutting of the primary cutting is performed, it is possible to secure a 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 forming and processing apparatus 10 of the pad for improving NVH of the vehicle includes a secondary cutting alignment guide part ( 500) may be included. After the primary cutting is completed, a guide operation may be performed in the secondary cutting alignment guide unit 500 to align the leading edge of the entry of a plurality of rod-shaped materials before entering the secondary cutting, and for left alignment based on the progress direction. Alignment can be performed through other guides.

The control unit may set the cutting conditions of the first cutting unit 200 and the secondary cutting unit 600 according to the size, shape, and quantity of the pad, and the secondary cutting alignment guide unit 500 may also be connected to the control unit. can In order to advance the material for secondary cutting after the primary cutting through the control unit that processes various information data such as the size of the final product, the height of the raw material, and the conveying direction of the material, the control unit controls the third conveyor member 530 ) and precision control of the movement distance through a servo motor can minimize product error. For example, the third conveyor member 530 may be provided with a clamp, a roller, and a servomotor to perform vertical movement to perform transport in consideration of 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 rod-shaped material to form a plate shape by contacting each other before secondary cutting, and the rod-shaped material during 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 one of the rod-shaped materials, and a guide bar support member 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 supporter 513, and an alignment member frame 517 on which the drive source 515 is mounted and a rail on which the guide bar supporter 513 moves is formed. may include That is, in the alignment member 510, the guide bar 511 is in contact with one of the rod-shaped materials and is pushed in one direction (secondary cutting part direction) by the driving of the guide bar supporter 513, and the plurality of rod-shaped materials are secondary It may be arranged in a plate shape under the cutting unit 600 .

The clamping member 520 includes a clamping bar 521 for fixing the bar-shaped material during secondary cutting by pressing it perpendicularly to the longitudinal direction of the plurality of rod-shaped materials aligned by the alignment member 510, and the clamping bar A linear robot 523 for vertically moving 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 transfer unit 400 .

After the primary cutting, a plurality of materials formed in a rod shape are simultaneously fed, and one side is cut to have a predetermined angle with respect to the Z-axis, and the secondary cutting unit 600 is formed into a pad for improving NVH, the membrane It may be provided with a second disk wheel 610 for Z-axis cutting of a large material, and a robot arm 630 for adjusting the inclination angle and position of the second disk wheel 610 . The secondary cutting unit 600 is configured to perform secondary cutting using the robot arm 630 , and angular cutting based on the Z-axis may be performed. For example, the control of the robot arm may be controlled through a Hi5a controller, and the robot arm 630 may have six degrees of freedom in the form of vertical multi-joints for multiple cutting of various angles along the Z-axis. 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 the Z-axis angle cutting, it can be cut at a preset angle value through the robot arm 630. One end of the robot arm 630 may have a robot gripper positioned therein to mount the second disk wheel 610 , and the rotational speed of the second disk wheel 610 may be determined through the control unit. For example, the operation of the robot arm 630 may also be performed in conjunction with the electric controller (PLC) through CC-Link communication.

During the secondary cutting, vertical and horizontal clamping can be made according to the material properties 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 material properties. . In addition, since the secondary cutting has a slower cutting speed compared to the primary cutting, in the secondary cutting, multiple cutting of cutting a plurality of rod-shaped materials arranged side by side due to the secondary cutting alignment guide unit 500 is performed. it is preferable

The secondary cutting is made and the completed pad can be transferred through the fourth conveyor member 540 , and the remaining amount that does not meet the standard in the residual amount outlet 700 installed on one side of the second cutting unit 600 , that is, the front end when cutting To match the line, the first cut pad and the last remaining material are separated from the finished product pad, and can be collected and discharged separately.

In addition, the separation and discharge unit 800 for automatically taking out and separating the pads manufactured differently in size and shape may be provided with a classifier 801 to automatically separate and collect the products into the product storage box 810 according to the size and shape. When the separated and discharged pad reaches the production target amount according to a value input in advance from the control unit, the molding processing apparatus 10 may be stopped, and the product storage box 810 may be requested to be cleaned up through an alarm to the operator.

The apparatus 10 for forming and processing 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 a synthetic material, PE foam, may have a dull blade due to the adhesive component generated after cutting, which may cause the pad's cutting surface to become uneven. That is, if the cutting edge of the disc wheel is not cleaned, the pad cutting surface may be unevenly defective, which may lead to a decrease in product quality and an increase in raw material consumption. Therefore, by providing the disk wheel cleaning unit 900 for cleaning the cutting edge, foreign substances on the cutting edge can be removed during the cutting process, thereby further improving the quality of the finished pad. For example, the disk wheel cleaning unit 900 includes a cleaning disk 920 including a felt material, a driving source 910 for driving the cleaning disk 920 , and a frame for supporting and moving the cleaning disk 920 . It may include a member 930, and may further include an air cleaning member (not shown) for dropping the cleaned foreign matter.

The molding and processing apparatus of a pad for improving NVH of a vehicle according to an embodiment of the present invention has the advantage of increasing work stability through an automated process, reducing production fatigue of workers regardless of worker's skill level, and securing work stability . In addition, there is an effect that can mold and process a pad having a uniform and various 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 can variously modify and change the present invention within the scope without departing from the spirit and scope of the present invention as set forth in the claims below. You will understand that it can be done.

One; plate material
10; Forming and processing device of pad for NVH improvement of vehicle
100; raw material storage
110; input table
120; support frame
130; alignment plate
140; moving plate
150; guide home
200; 1st cut
210; first disc wheel
220; Disc wheel drive means
230; waiting table
300; 1st transfer unit
400; 2nd transfer unit
410; no queue
420; second conveyor member
500; Secondary cutting alignment guide part
510; alignment member
520; clamp member
530; third conveyor member
540; fourth conveyor member
600; 2nd cut part
610; 2nd disc wheel
620; reducer
630; robot arm
700; Residual amount outlet
800; separate discharge unit
900; disc wheel cleaning unit
910; drive source
920; cleaning disc
930; frame member

Claims (9)

A raw material loading unit in which the elastic plate-shaped material is located;
a primary cutting unit for cutting the plate-shaped material parallel to the x-axis or the y-axis;
a secondary cutting unit in which a plurality of rod-shaped materials are simultaneously fed after the primary cutting, and one side is cut to have a predetermined angle with respect to the Z-axis to form a pad for improving NVH;
a control unit configured to set cutting conditions of the first cutting unit and the secondary cutting unit according to the size, shape, and quantity of the pad; and
A device for molding and processing a pad for improving NVH of a vehicle, comprising: a separate discharge unit that automatically takes out and separates each pad manufactured differently in size and shape.
The method of claim 1,
The raw material loading unit, an input table on which the plate-shaped material is seated, a support frame for supporting the input table, an alignment plate positioned at one side of the input table to support one side of the plate-shaped material, and the input table A molding and processing apparatus for NVH improvement of a vehicle, characterized in that it includes a moving plate protruding from the upper surface of the plate to horizontally move the plate-shaped material by a predetermined distance.
The method of 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 rod-shaped materials. A molding and processing apparatus for a pad for improving NVH of a vehicle, characterized in that it includes a waiting table for waiting.
The method of claim 1,
The apparatus for forming and processing the NVH improvement pad of the vehicle includes a primary transfer part for aligning the rod-shaped material provided from the primary cutting part and transferring it to the secondary cutting part. of molding processing equipment.
The method of claim 1,
The apparatus for forming and processing the NVH improvement pad of the vehicle includes a secondary transport part in which the material is transported and waiting before the rod-shaped material is provided to the secondary cutting part. molding equipment.
The method of claim 1,
The apparatus for forming and processing the pad for improving NVH of the vehicle includes a secondary cutting alignment guide for aligning the rod-shaped material before the rod-shaped material is provided to the secondary cutting unit. Forming and processing equipment for improvement pad.
7. The method of claim 6,
The secondary cutting alignment guide part includes an aligning member for aligning both end surfaces of the rod-shaped material to form a plate in contact with each other before secondary cutting, and a clamp member for fixing the rod-shaped material during secondary cutting A molding and processing device for a pad for improving NVH of a vehicle, characterized in that it.
The method of claim 1,
The secondary cutting unit includes a second disk wheel for Z-axis cutting of the rod-shaped material, and a robot arm for adjusting an inclination angle and position of the second disk wheel. molding equipment.
9. The method of claim 8,
The apparatus for forming and processing the NVH improvement pad of the vehicle includes a disk wheel cleaning unit for cleaning the cutting edge of the second disk wheel.

Images