KR20230010393A - Beam bending machine for vehicle stretch bumpers with improved precision and accuracy - Google Patents

Abstract

The present invention relates to a bending machine for forming a curvature of a certain angle on both sides of a beam (2) for a vehicle bumper (1), wherein the bending machine includes a body (10), a straightening unit (20), a pressing unit (30), a clamp unit (40), a bending unit (50), and a control means having a measuring unit (60). Accordingly, the present invention has the effect of producing a high-quality beam with accuracy and precision while doubling the speed and accuracy of operations as well as the production speed and minimizing defects in the process.

Description

Beam bending machine for vehicle stretch bumpers with improved precision and accuracy}

The present invention relates to a beam bending device for a vehicle bumper, and more specifically, to structurally advance the configuration of a bending device that forms curvature on both sides of a beam for a vehicle bumper, thereby doubling the speed and accuracy of operation as well as the production speed, By minimizing production errors and product defects, it is possible to further maximize the efficiency of overall process automation while improving product yield and productivity by inducing a smooth flow according to process automation. It relates to a beam bending device for a vehicle bumper with improved precision and accuracy capable of producing high-quality beams with accuracy and precision by enabling rapid feedback on defects while minimizing defects in the process by securing great flexibility in response to shape changes.

In general, a bumper installed in a vehicle is configured to absorb an instant shock generated when a vehicle crashes after a vehicle accident, and is configured to protect a pedestrian from impact with a vehicle when colliding with a pedestrian. The inside of the bumper is completed by inserting an energy absorber and a back beam inside to support the impact while having a function of buffering. It consists of a back beam. These back beams vary according to the shape of the bumper. In the case of automobiles, both ends are bent in a streamlined shape to minimize resistance from air, etc. to save fuel efficiency or improve driving performance. It had to be bent to form a curvature of various constant angles.

For example, according to Korean Patent Registration No. 10-0249132, a piston operating plate 13, a mandrel operating plate 31, 31', and a support 9 are disposed on the die 40, and the piece A cylinder 37 and a piston rod 36 interlocked with the cylinder 37 are formed on the tone operating plate 13, and the piston rod 36 rotates the roll mold rotation bar 22 around the hinge 33 at its end. (22) is coupled in a widened state so that it can be operated left and right, and the roll bending mold 15 ( 15') is coupled in the direction of both left and right ends, and the roll bending mold 15 (15') is hinged at its central part with the left and right end stretching bars 12, 12' and It is connected to be rotated in the piston operating plate 13 by hinges 21 and 21', and the left and right stretching bars 12 and 12' have a piston rod formed in the cylinder 11 at the other end ( 28) (38') is configured to operate the roll bending mold (15) (15') inward at the same time centered on the hinge (21) (21') so that bending occurs within the plastic deformation region. Characterized in that A bending device for a bending member for automobiles is presented.

However, according to the above-mentioned prior art, there is a problem that the possibility of substantially causing plastic fracture at or above the yield point of the beam is very high, and the operation structure is complicated and limited to a specific curvature. That is, in order to manufacture a beam having a predetermined curvature, a device according to the curvature must be newly implemented, and the defect rate is very high even in actual bending. In addition, due to structural characteristics, it can be bent to have a curvature at some points or locally, but there is a limit in that it cannot be bent to have an overall curvature. Therefore, since it is structurally complex, it is difficult to operate and high cost is imposed, and curvatures due to various designs cannot be digested, and the defect rate is significantly high, so there are problems in that overall productivity is lowered.

Therefore, in the field of vehicle manufacturing industry, not only productivity still falls short of expectations, but also it does not smoothly lead to the next process, which shows limitations in the direction of increasing productivity.

In order to solve these disadvantages, the present applicant proposes Korean Patent Registration Nos. 10-1340383 and 10-1640322 to combine the advantages of stretch bending and roll bending, thereby providing various designs through rollers moving in multiaxial directions. It has been proposed to secure excellent quality and stability by meeting the specifications required for bumpers with compatibility that can handle curvature and precision that minimizes surface cracks or wrinkles.

On the other hand, the present invention also has room for improvement with respect to the registered patent of the present applicant, that is, forming an accurate curvature of the set bending is one of the important design elements to improve it to achieve better speed and accuracy as well as error and There is room to secure process automation by minimizing product defects.

Korean Registered Patent Publication No. 10-0249132 "Bending device of bending member for automobile" (registration date: 1999. 12. 22.) Republic of Korea Patent Registration No. 10-1340383 "Beam bending device for vehicle bumper" (registration date: 2013. 12. 05.) Republic of Korea Patent Registration No. 10-1640322 "Manufacturing Apparatus for Vehicle Bumper Beam" (registration date: 2016. 07. 11.)

The purpose of the present invention for fundamentally improving the conventional problems as described above is to structurally advance the configuration of the bending device that forms the curvature on both sides of the vehicle bumper beam, thereby doubling the speed and accuracy of operation as well as the production speed , It is possible to further maximize the efficiency of the overall process automation while improving product yield and productivity by inducing a smooth flow according to process automation by minimizing production errors and product defects, and bending the set precise curvature as well as model It is intended to provide a beam bending device for vehicle bumpers with improved precision and accuracy that can produce high-quality beams with accuracy and precision by enabling rapid feedback on defects while minimizing defects in the process by securing a large degree of flexibility corresponding to changes in shape of the .

The present invention for achieving the above object, in the bending device for forming a curvature of a certain angle on both sides of a beam for a vehicle bumper: a body having a seat to accommodate the beam to be seated; a calibration unit provided on the main body to be located at the center of the seating table according to the size and position of the beam; A pressing unit having a pressurizing body pressurized by a fixing cylinder to fix the center of the beam seated on the seat on the upper part of the main body; A clamp unit installed on the main body to be approachable to both sides of the beam seated on the seat, and pulling with a certain pressure while closely pressing and fixing the edges of both sides of the beam; a bending unit located on the upper part of the main body to press and fix both sides of the beam while moving the clamp unit to the lower side so that both sides of the beam can be bent around the axis of rotation; And control means having a measuring unit configured to be controllable according to the curvature in accordance with the standard of the beam in conjunction with each unit, and measuring the degree of bending bent on both sides of the beam bent on the main body. It is characterized in that it is made by.

At this time, the calibration unit according to the present invention transfers downward with the pressing force of the pressure cylinder to press the beam to be positioned in the center according to the size and position of the beam seated on the seat base, and the pressure plate having a pressure plate coincident with the beam. It is characterized by having a link unit moving by a link cylinder so as to be movable by pressing both sides of the beam seated on the seat in association with.

In addition, the clamp unit according to the present invention includes a movable cylinder approaching both sides of the beam, an inclined cylinder having a pressing part for pressing the upper edges of both sides of the beam in an oblique direction in an approached state, a pedestal for supporting the lower edges of both sides of the beam, It is characterized by having an encoder for controlling the position to exert an appropriate pressing force while being applicable to beams of various sizes together with a load cell to measure the pressing force along with the accurate pressing force of the moving cylinder.

In addition, the bending unit according to the present invention is a bending cylinder for bending both sides of the beam by transferring the clamp unit to the bottom, an encoder for controlling the position of the bending cylinder to exert an appropriate pressing force, and a rotation table for pressing the clamp unit around the rotation axis It is characterized by having an auxiliary cylinder that auxiliaryly presses both sides of the beam and a holding clamper that clamps the bent beam on the seat of the main body to prevent deformation and at the same time reduce the curvature distribution of the beam.

In addition, the measuring unit according to the present invention selects either a contact type or a non-contact type to measure the degree of bending bent on both sides of the bent beam, and the contact type is a measuring cylinder installed on both sides of the bent beam, measuring It is installed on the cylinder and is equipped with a pressure sensor to measure the degree of bending through pressing on both sides of the bent beam, and the non-contact type is installed on both sides of the bent beam and bent through pressing on both sides of the bent beam It is characterized by having a digital measuring device to measure the degree of bending.

On the other hand, prior to this, the terms or words used in this specification and claims should not be construed as being limited to ordinary or dictionary meanings, and the inventors use the concept of terms to explain their invention in the best way. Based on the principle that it can be properly defined, it should be interpreted as meaning and concept consistent with the technical spirit of the present invention. Therefore, the embodiments described in this specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention, and do not represent all of the technical ideas of the present invention, so various alternatives can be made at the time of this application. It should be understood that there may be equivalents and variations.

As described in the configuration and operation above, the beam bending device for a vehicle bumper with improved precision and accuracy according to the present invention structurally advances the configuration of the bending device in which curvature is formed on both sides of the beam for a vehicle bumper, resulting in rapid and accurate operation Of course, it is possible to further maximize the efficiency of overall process automation while improving product yield and productivity by inducing a smooth flow according to process automation by doubling the production speed, minimizing production errors and product defects, and setting precise In addition to bending the curvature, flexibility to respond to changes in the shape of the model is greatly secured, minimizing defects in the process and enabling rapid feedback on defects, providing the effect of producing accurate and precise high-quality beams.

1 is a configuration diagram showing a state of use of a typical vehicle bumper beam.
Figure 2 is a front view showing a beam bending device for a vehicle bumper according to the present invention.
Figure 3 is a plan view showing a beam bending device for a vehicle bumper according to the present invention.
Figure 4 is a side view showing a beam bending device for a vehicle bumper according to the present invention.
Figure 5 is a configuration diagram showing the main configuration of the correction unit in the beam bending device for a vehicle bumper according to the present invention.
Figure 6 is a configuration diagram showing the main configuration of the bending unit in the beam bending device for a vehicle bumper according to the present invention.
7 and 8 are configuration diagrams showing the main configuration of the measuring unit in the beam bending device for a vehicle bumper according to the present invention.

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

The present invention proposes a bending device for forming a curvature of a certain angle on both sides of a beam 2 for a vehicle bumper 1. On the other hand, the vehicle bumper 1 uses a bending device to form curvature on both sides of the beam 2 configured to support the bumper 1 and the energy absorber 3 mounted therein as shown in FIG. The bending device has a main body 10, a calibration unit 20, a pressure unit 30, a clamp unit 40, a bending unit 50, and a measuring unit 60 as main components.

According to the present invention, the main body 10 is provided with a seating table 11 to be seated by receiving the beam (2). The main body 10 is configured so that the beam 2 can be seated on the seat 11 formed in the center in a state of being seated on the ground. The seating table 11 of the main body 10 is moved by automation or a worker directly so that it can be seated naturally due to the supply of the beam 2.

In addition, according to the present invention, the calibration unit 20 is provided on the main body 10 to be positioned in the center of the seating table 11 according to the size and position of the beam 2. As shown in FIGS. 2 and 3 , when the beam 2 is supplied on the seat 11 of the body 10, the calibration unit 20 is seated in a state in which the center of the beam 2 is centered on the seat 11. Since it is not, the beam 2 is positioned in the center of the seat 11 to match it. In addition, since the beam 2 can be formed in various shapes, sizes, lengths, etc., it is set accordingly so that the beam 2 can be positioned in the center of the seating table 11, and the detailed configuration accordingly will be described later. to explain.

At this time, according to the detailed configuration of the present invention, the calibration unit 20 moves downward with the pressure of the pressure cylinder 21 so as to be positioned in the center according to the size and position of the beam 2 seated on the seat 11. The pressure table 23 having a pressure plate 22 matched with the beam 2 by transferring the pressure plate 23 and the pressure plate 23 are connected to each other so that both sides of the beam 2 seated on the seat 11 can be moved by pressing. It is characterized by having a link unit 24 that moves by the link cylinder 25. As shown in FIG. 5, the calibration unit 20 is configured such that the center of the seated beam 2 is located at the center of the seat 11 so that both ends can be bent accurately.

On the other hand, in the calibration unit 20 of the present invention, the pressure base 23 is moved to match both sides of the beam 2 on the pressure plate 22 through the pressure cylinder 21 so that both sides of the beam 2 can be pressed. , As one side of the link part 24 is moved upward or downward by the link cylinder 25, the other side of the link part 24 is connected to the support plate 23, so that the pressure plate through the movement of the support plate 23 ( 22) presses both sides of the beam 2 so that the center of the beam 2 is located at the center of the seat 11. That is, the pressing plate 22 simultaneously presses both sides of the beam 2 with the same pressure through the link part 24 so that the center of the beam 2 can be positioned at the center of the seat 11.

In addition, according to the present invention, the pressing unit 30 is a pressing body for pressing by a fixed cylinder 32 to fix the center of the beam 2 seated on the seat 11 on the upper part of the main body 10 ( 31) is provided. The pressing unit 30 serves to press and fix the center of the beam 2 while being located on the upper portion of the seat 11 as shown in FIGS. 2 and 3 . The pressure unit 30 presses the center of the beam 2 by moving the pressure body 31 downward by the fixed cylinder 32 from the top of the beam 2 located in the correct position by the calibration unit 20. and fixed, the detailed configuration thereof will be described later.

At this time, the pressing unit 30 is configured to have a constant interval to secure a space in which the beam 2 is bent during bending, that is, in the case of the pressing unit 30, fixed by the clamp unit 40 to be described later Then, when bending starts through the bending unit 50, the center of the beam 2 is to have a certain interval so as to secure a space for bending. That is, when the curvature is formed through bending by pressing both sides of the beam 2, the center of the beam 2 may have a certain interval by securing a space so that it can be bent by pressure.

In addition, according to the present invention, the clamp unit 40 is installed on the main body 10 to be approachable to both sides of the beam 2 seated on the seating table 11, and the edges of both sides of the beam 2 are carefully It is configured to pull with a certain pressure while pressurizing and fixing. The clamp unit 40 is located on both sides of the seating table 11 as shown in FIGS. 2 and 3 and closely fixes both edges of the beam 2 seated on the seating table 11, and at the same time, the bending unit 50 described later ) and performs a role of bending while pulling a certain pressure while pressing and fixing the beam 2 in a state in which the beam 2 is pressurized and fixed, and the detailed configuration thereof will be described later.

At this time, according to the detailed configuration of the present invention, the clamp unit 40 is a moving cylinder 41 that approaches both sides of the beam 2, and pressurizing the upper edges of both sides of the beam 2 in an inclined direction in a close state. An inclined cylinder 43 having a portion 42, a pedestal 44 supporting the bottom of both sides of the beam 2, and a load cell 46 of various sizes to measure the pressing force together with the accurate pressing force of the moving cylinder 41 It is characterized by having an encoder 47 that controls the position so as to exert an appropriate pressing force while being applicable to the beam 2 of the. The clamp unit 40 is configured so that the inclined cylinder 43 having the pressing part 42 is approached to both sides of the beam 2 by the moving cylinder 41 as shown in FIGS. 2 and 3, and both sides of the beam 2 Together with the pedestal 44 supporting the lower corner, the pressing part 42 configured to press the upper corners of both sides of the beam 2 in an oblique direction is pressed by the inclined cylinder 43 to both sides of the beam 2 Make sure that the top and bottom of the corner can be carefully fixed.

In addition, the edges of both sides of the beam 2 are tightly pressed and pulled with a certain pressure so as to enable smooth operation during bending by the bending unit 50 described later. This clamp unit 40 is equipped with a servo valve (reference numeral not given), a load cell 46, and an encoder 47, which are configured to closely press and fix both edges of various beams 2 and have various sizes. It is configured to be accommodated in the beam 2 of the beam 2, and at the same time, it is possible to measure the pressing force for fixing the beam 2 or the tension force during the bending operation by the bending unit 50 described later, so that it is safe and secure on the beam 2 It can also be configured to enable meticulous work.

On the other hand, the material of the beam 2 is a metal or non-metal material, and most of the strength increases as the seal passes, and the strength of the beam 2 is checked by preemptively pulling through the pressing part 42 of the clamp unit 40. do. The strength of the beam 2 is primarily checked by measuring the amount of extension of the beam 2 through a control means described later, and then the bending cylinder 52 of the bending unit 50, the encoder 53 and Accurate tension force and bending value are calculated and automatically adjusted in conjunction with each other, and at the same time, the operating force is automatically adjusted through the inclined cylinder (43), load cell (46), and encoder (47) for the pressing part (42) of the clamp unit (40). do.

In addition, according to the present invention, the bending unit 50 is located on the upper part of the main body 10 and presses and fixes both sides of the beam 2 while moving the clamp unit 40 downward while rotating the beam around the axis 51 Both sides of (2) are provided with bending (bending) is possible. The bending unit 50 serves to operate the clamp unit 40 while being located on the upper part of the body 10 as shown in FIG. 1 . The bending unit 50 presses both sides of the beam 2 fixed by the clamp unit 40 from the top and rotates it about the rotation axis 51 so that both sides of the beam 2 can be bent, A detailed configuration according to this will be described later.

At this time, according to the detailed configuration of the present invention, the bending unit 50 transfers the clamp unit 40 to the lower side of the beam 2, the bending cylinder 52 for bending, and the appropriate pressing force of the bending cylinder 52 Encoder 53 for controlling the position so as to be exerted, an auxiliary cylinder 55 for auxiliary pressurizing both sides of the beam 2 through a rotary table 54 for pressurizing the clamp unit 40 around the rotary shaft 51, and a main body It is characterized by having a holding clamper 57 for clamping the bent beam 2 on the seat 11 of (10) to prevent deformation and at the same time reducing the curvature distribution of the beam 2. The bending unit 50 transfers the clamp unit 40 downward in a state in which both sides of the beam 2 are fixed through the bending cylinder 52, so that both sides of the beam 2 can be bent around the rotation axis 51 , The auxiliary cylinder 55, which auxiliaryly presses both sides of the beam 2 to enable bending through safe pressing, is operated passively while being configured to be able to rotate together with the rotary table 54. In addition, the bending cylinder 52 controls the position of the bending cylinder 52 so as to exert an appropriate pressing force by the encoder 53 during operation, so that careful bending is possible.

In addition, as shown in FIG. 6, the holding clamper 57 is located on both sides of the seat 11 of the main body 10 to clamp the bent beam 2, which means that the bent beam 2 is slightly deformed so that the curvature distribution is In order to prevent this, the curvature distribution of the beam 2 is reduced by clamping through the holding clampers 57 on both sides of the beam 2 after bending to prevent deformation and at the same time.

In addition, according to the present invention, the control means is set to be controllable according to the curvature according to the standard of the beam 2 by interworking with each of the units 20, 30, 40, 50, and 60, and the A measuring unit 60 is provided on both sides of the beam 2 bent on the main body 10 to measure the bending degree. The control means controls the overall sequence of each unit 20, 30, 40, 50, and 60 as described above, as well as the bending angle of the beam 2 and the beam 2 set by the operator. It allows you to set the working environment according to the size of the This control means is provided to work with the measuring unit 60, and is provided to measure the degree of bending bent on both sides of the beam 2 bent on the main body 10. The measuring unit 60 is configured to measure the degree of bending bent on both sides of the beam 2 from the bending unit 50, enabling the operator to check good and defective products while providing quick feedback on defective products. Bar, the detailed configuration according to this will be described later.

At this time, according to the detailed configuration of the present invention, the measuring unit 60 selects either a contact type or a non-contact type to measure the degree of bending bent on both sides of the bent beam 2, and the contact type is the bent beam ( A measuring cylinder 61 installed on both sides of 2) and a pressure sensor 62 installed on the measuring cylinder 61 to measure the degree of bending through pressure on both sides of the bent beam 2 Equipped with a pressure sensor 62 And, the non-contact type is characterized by having a digital measuring device 65 installed on both sides of the bent beam 2 to measure the degree of bending through pressing on both sides of the bent beam 2. As shown in FIGS. 7 and 8 , the measuring unit 60 selects either a contact type or a non-contact type to measure the degree of bending bent on both sides of the beam 2 after bending. 7 is a contact type, the measuring cylinder 61 installed on both sides of the bent beam 2, and the degree of bending bent through pressing both sides of the bent beam 2 installed on the measuring cylinder 61 It is provided with a pressure sensor 62 to be able to measure. This contact type is configured to grasp the bent angle through the pressure sensor 62 moving the banded portion on both sides of the beam 2 on which the work is completed by the bending unit 50 to the measuring cylinder 61. Accurate feedback to the next process plays a role in significantly reducing the defect rate.

And, as shown in FIG. 8, the non-contact type includes a digital measuring device 65 installed on both sides of the bent beam 2. Unlike the contact type, this non-contact type measures the banded area on both sides of the beam 2 on which the work has been completed by the bending unit 50 in a non-contact type, grasps the bent angle, etc., and significantly reduces the defect rate with accurate feedback to the next process. will play a role in reducing

In the operation using the above FIGS. 2 to 8, when the beam 2 is seated on the seat 11 of the main body 10, the beam 2 moves to the center of the seat 11 through the calibration unit 20. Correct the position so that the center of the Subsequently, the center of the beam 2 is pressed and fixed with the pressing body 31 that is pressed by the fixed cylinder 32 of the pressing unit 30, and the upper and lower corners of both sides of the beam 2 are fixed through the clamp unit 40. While closely fixing, the pressing body 31 maintains a constant interval to secure a bending interval.

Subsequently, the clamp unit 40 fixing both edges of the beam 2 is pulled with a certain pressure to prepare for smooth bending, and at the same time rotates the beam 2 around the rotational axis 51 through the bending unit 50 It is completed by allowing both sides of the banding to be applied. Subsequently, the degree of bending is measured on both sides of the beam 2 through the measuring unit 60, and feedback is given to the control means to quickly check good and defective products, and fast feedback on defective products blocks the defect rate for the next process will do

As such, the present invention structurally advances the configuration of the bending device in which curvature is formed on both sides of the beam for a vehicle bumper, thereby doubling the speed and accuracy of operation as well as the production speed, and minimizing errors due to production and product defects By inducing a smooth flow according to process automation, product yield and productivity can be improved while overall process automation efficiency can be further maximized. It is possible to produce accurate and precise high-quality beams by providing rapid feedback on defects while minimizing the defects of the beam.

The present invention is not limited to the described embodiments, and it is obvious to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such variations or modifications should fall within the scope of the claims of the present invention.

1: bumper 2: beam
3: energy absorber 10: body
11: seating table 20: calibration unit
21: pressure cylinder 22: pressure plate
23: cuff 24: link part
25: link cylinder 30: pressurization unit
31: pressurized body 32: fixed cylinder
40: clamp unit 41: moving cylinder
42: pressing part 43: inclined cylinder
44: stand 46: load cell
47: encoder 50: banding unit
51: rotation axis 52: bending cylinder
53: encoder 54: swivel
55: auxiliary cylinder 60: measuring unit
61: measuring cylinder 62: pressure sensor
65: digital meter

Claims (5)

In the bending device for forming a curvature of a certain angle on both sides of the beam 2 for the vehicle bumper 1:
A main body 10 having a seating table 11 to receive and seat the beam 2;
A calibration unit 20 provided to be positioned in the center of the seat 11 according to the size and position of the beam 2 on the main body 10;
A pressing unit (30) having a pressing body (31) pressurized by a fixed cylinder (32) to fix the center of the beam (2) seated on the seating table (11) on the top of the main body (10);
A clamp unit (40) installed on the main body (10) to be approachable to both sides of the beam (2) seated on the seat (11), and pulling with a certain pressure while carefully pressing and fixing the edges of both sides of the beam (2) );
Both sides of the beam 2 can be bent around the rotation axis 51 while moving the clamp unit 40 located on the upper part of the main body 10 and pressurizing and fixing both sides of the beam 2 downward. a banding unit 50 provided with; and
Set to be controllable according to the curvature according to the standard of the beam 2 in conjunction with the respective units 20, 30, 40, 50, and 60, and the beam bent on the main body 10 Beam bending device for a vehicle bumper with improved precision and accuracy, characterized in that it comprises a; control means having a measuring unit 60 for measuring the degree of bending bent on both sides of (2). According to claim 1,
The calibration unit 20 is transferred downward with the pressing force of the pressure cylinder 21 to press the beam 2 seated on the seat 11 to be positioned in the center according to the size and position of the beam 2, and is matched with the beam 2 The pressure table 23 having a pressure plate 22 and the pressure plate 23 are linked to each other and moved by the link cylinder 25 so that both sides of the beam 2 seated on the seat 11 can be moved by pressing. Beam bending device for a vehicle bumper with improved precision and accuracy, characterized in that it comprises a link portion (24). According to claim 1,
The clamp unit 40 is an inclined cylinder having a movable cylinder 41 that approaches both sides of the beam 2 and a pressing part 42 that presses the upper edges of both sides of the beam 2 in an oblique direction in a close state ( 43), the pedestal 44 supporting the bottom of both sides of the beam 2, and the load cell 46 to measure the pressing force along with the accurate pressing force of the moving cylinder 41. While being applicable to the beam 2 of various sizes, Beam bending device for a vehicle bumper with improved precision and accuracy, characterized in that it comprises an encoder (47) for controlling the position to exert an appropriate pressing force. According to claim 1,
The bending unit 50 transfers the clamp unit 40 downward to the bending cylinder 52 for bending both sides of the beam 2, and the encoder 53 for controlling the position to exert an appropriate pressing force of the bending cylinder 52 ), the auxiliary cylinder 55 that auxiliaryly presses both sides of the beam 2 through the rotary table 54 that presses the clamp unit 40 around the rotation shaft 51 and the seating table 11 of the main body 10 A beam bending device for a vehicle bumper with improved precision and accuracy, characterized in that it includes a holding clamper 57 that clamps the beam 2 bent on the top to prevent deformation and at the same time reduces the curvature distribution of the beam 2. According to claim 1,
The measurement unit 60 selects either a contact type or a non-contact type to measure the degree of bending bent on both sides of the bent beam 2, and the contact type measures installed on both sides of the bent beam 2 It is installed on the cylinder 61 and the measuring cylinder 61 and is provided with a pressure sensor 62 to measure the degree of bending through pressing of both sides of the bent beam 2, and the non-contact type is the bent beam 2 Beam bending device for a vehicle bumper with improved precision and accuracy, characterized in that it is installed on both sides of the top and includes a digital measuring device 65 to measure the bending degree bent through pressing on both sides of the bent beam 2.

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