KR102194892B1 - Springback imprrovement device for springback inspection improvement system - Google Patents

Abstract

Disclosed is a springback improvement device of a springback inspection/improvement system. The disclosed springback improvement device of a springback inspection/improvement system comprises a springback inspection device and a springback improvement device in a springback inspection/improvement system for inspecting and improving a springback of a molded product. The springback improvement device comprises: a fixing electromagnet part for fixing a product by electromagnetic force; and a correction electromagnet part for correcting a springback at a corresponding position of the product through electromagnetic force by using a springback correction dimension measured by a springback inspection device and derived from a comparison and determination unit in order to correct the springback of the product mounted on the fixing electromagnet part.

Description

Springback improvement device for springback inspection and improvement system {SPRINGBACK IMPRROVEMENT DEVICE FOR SPRINGBACK INSPECTION IMPROVEMENT SYSTEM}

The present invention relates to a springback improvement device of a springback inspection and improvement system, and more particularly, to measure a processed product using a springback inspection device to improve the springback generated in a molded and bent product. If there is a springback of the measured product, the springback improvement device of the springback inspection and improvement system that can easily improve the springback of the product by correcting the springback at the corresponding position using the springback improvement device will be.

In general, when a plate made of steel is to be molded into a product of a desired shape, the plate is placed on a die having a profile corresponding to the shape of the molded product and pressurized with a certain pressure by a press or punch that is operated up and down. Thus, the plate is bent to a desired angle and shape.

In the process of bending and bending the plate material as described above, even if a force below the elastic limit or more is applied, the bent portion may not be bent at a desired angle.

This is due to the phenomenon that it is difficult to completely remove the elasticity of the plate itself due to the difference in the thickness direction and in-plane stress of the region subjected to the bending force, and this is because a spring back phenomenon occurs in which the original material is about to be restored to its original state.

This springback phenomenon has a great adverse effect on the dimensional accuracy and shape fixability of the molded article. Accordingly, in order to improve the dimensional accuracy, the springback amount is generally predicted through computer simulation, and then the angle of the mold is designed to be smaller than that of the actual product, and the dimensions after elasticity recovery are corrected to become the dimensions of the product.

In the press product molding process, not only the amount of springback varies depending on the friction condition due to damage to the mold, the curved portion of the mold, etc., but also the problem of generating a difference according to the distribution of physical properties such as the yield point of the plate material under the same mold condition occurs.

Thus, in the past, after processing a product (mainly composed of a single item) with a press mold, check whether it is normally manufactured or not using a resin-made inspection tool, and if there is an abnormality, manually use a handwork equipment. I did the work to compensate for the springback,

However, the springback handwork work using the existing manpower takes a lot of correction time or may cause injury to the operator, damage to the product occurs due to an operator's mistake, and the quality of the product is deteriorated because the correction is not accurately performed. Has a problem.

In addition, inspection tools made of resin for measuring the dimensions of a press-processed product are manufactured and used for each individual unit, thereby increasing the cost of manufacturing the inspection tools and requiring a place to store tens to hundreds of inspection tools.

Therefore, there is a need to improve this.

As a related background technology, there is Korean Patent Publication No. 0517370 (2005.09.20, title of invention: bending mold device for preventing springback).

The present invention is created by the necessity as described above, and in order to improve the springback generated in the molded and bent product, the processed product is measured using a springback inspection device and there is a springback of the measured product, An object thereof is to provide a springback improvement device of a springback inspection and improvement system that can easily improve the springback of a product by correcting a springback at a corresponding position using a springback improvement device.

In addition, the present invention is a springback test capable of effectively correcting the springback of the product by firmly supporting the correction electromagnet part to the working robot arm by additionally fixing the correction electromagnet part through the mounting electromagnet member using a detachable part. Its purpose is to provide a springback improvement device of an improvement system.

In order to achieve the above object, the springback improvement apparatus of the springback inspection and improvement system according to the present invention is compared with the springback inspection apparatus in the springback inspection and improvement system for inspecting and improving the springback of a molded product. It includes a determination unit and a springback improving device, wherein the springback improving device, the fixed electromagnet portion for fixing the product by electromagnetic force; And the springback at the corresponding position of the product by using the springback correction dimension measured by the springback inspection device and derived from the comparison determination unit to correct the springback of the product mounted on the stationary electromagnet unit. It characterized in that it comprises a; correction electromagnet unit for correcting through.

The fixed electromagnet part, a frame member supported on the floor; A support member protruding upward from the frame member to support the product; And a fixed magnetic force generating unit installed in the support member through the frame member to generate an electromagnetic force.

The correction electromagnet part may include a body member gripped for manual operation or connected to a working robot arm of a working robot; A working member extending from an end portion of the body member to access the product and having a larger area than the body member; And a correcting magnetic force generating unit installed on the working member through the body member to correct the springback of the product.

The body member is characterized in that it is separated and mounted from the working robot arm by a mounting electromagnet member built into the working robot arm.

The body member is additionally fixed together with the mounting electromagnet member by a detachable part, and the detachable part comprises: a hook member provided on the working robot arm or the working member; A clasp member caught on the clasp member; And a restraining lever member provided on the working robot arm or the working member and rotatably supported by the mounting member to pull the clasp member to restrain the clasp member.

The body member is characterized in that the rotation is prevented by being inserted into a polygonal rotation preventing groove recessed in the end of the working robot arm.

The springback improvement device of the springback inspection and improvement system according to the present invention measures a processed product using a springback inspection device in order to improve the springback generated in the molded and bent product, and measures the spring of the measured product. If there is a bag, the springback of the target product can be effectively improved by correcting the springback at the corresponding position using the springback improving device.

In addition, according to the present invention, by additionally fixing the correction electromagnet part through the mounting electromagnet member using the detachable part, it is possible to effectively correct the springback of the product by firmly supporting the correction electromagnet part to the working robot arm.

1 is a perspective view showing the configuration of a springback improvement device of a springback inspection and improvement system according to an embodiment of the present invention.
2 is a perspective view of a springback inspection apparatus in the springback improvement apparatus of the springback inspection and improvement system according to an embodiment of the present invention.
3 is a plan view of a springback inspection apparatus in a springback improvement apparatus of a springback inspection and improvement system according to an embodiment of the present invention.
4 is a front view showing the lifting and lowering of a displacement sensor to measure product dimensions in a springback inspection apparatus of a springback improvement apparatus of a springback inspection and improvement system according to an embodiment of the present invention.
5 is an exploded perspective view showing a screw-type springback inspection apparatus in a springback improvement apparatus of a springback inspection and improvement system according to an embodiment of the present invention.
6 is an assembled perspective view of FIG. 5.
7 is a front cross-sectional view of the assembly state of FIG. 5.
8 is a cross-sectional plan view of the assembled state of FIG. 5.
9 is an exploded perspective view showing a gear type springback inspection device in the springback improvement device of the springback inspection and improvement system according to an embodiment of the present invention.
10 is an assembled perspective view of FIG. 9.
11 is a front cross-sectional view of the assembled state of FIG. 10.
12 is a perspective view of a springback improvement device in the springback improvement device of the springback inspection and improvement system according to an embodiment of the present invention.
13 is a perspective view illustrating a state in which a correction electromagnet part is separated from a working robot arm in the springback improvement device of the springback inspection and improvement system according to an embodiment.
14 is an assembled perspective view of FIG. 13.

Hereinafter, a springback improvement apparatus of a springback inspection and improvement system according to an embodiment of the present invention will be described with reference to the accompanying drawings.

In this process, the thickness of the lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention and may vary according to the intention or custom of users or operators. Therefore, definitions of these terms should be made based on the contents throughout the present specification.

1 is a perspective view showing a configuration of a springback improvement device of a springback inspection and improvement system according to an embodiment of the present invention, and FIG. 2 is a springback improvement of a springback inspection and improvement system according to an embodiment of the present invention In the apparatus, it is a perspective view of a springback inspection apparatus, and FIG. 3 is a plan view of a springback inspection apparatus in a springback improvement apparatus of a springback inspection and improvement system according to an embodiment of the present invention, and FIG. 4 is A front view showing the lifting and lowering of the displacement sensor to measure the product dimensions in the springback inspection device of the springback improvement device of the springback inspection and improvement system according to an embodiment, Figure 5 is a springback inspection according to an embodiment of the present invention And in the springback improvement device of the improvement system, an exploded perspective view showing a screw-type springback inspection device, Figure 6 is an assembly perspective view of Figure 5, Figure 7 is a front cross-sectional view of the assembly state of Figure 5, Figure 8 is It is a top sectional view of the assembled state.

9 is an exploded perspective view showing a gear type springback inspection device in the springback improvement device of the springback inspection and improvement system according to an embodiment of the present invention, FIG. 10 is an assembly perspective view of FIG. 9, and FIG. 11 is 10 is a front sectional view of the assembly state, and FIG. 12 is a perspective view of a springback improvement device in the springback improvement device of the springback inspection and improvement system according to an embodiment of the present invention, and FIG. 13 is a spring according to an embodiment In the springback improvement device of the bag inspection and improvement system, the correction electromagnet part is a perspective view of a state separated from the working robot arm, and FIG. 14 is an assembled perspective view of FIG.

1 to 14, a springback improvement apparatus of a springback inspection and improvement system according to an embodiment of the present invention includes a springback inspection apparatus 200, 300, a comparison determination unit 380, and a springback. Including the improvement device 400, the springback improvement device 400 includes a fixed electromagnet part 410 and a correction electromagnet part 420.

The springback inspection apparatuses 200 and 300 are configured to measure the displacement of each corresponding position by moving a plurality of displacement sensors 10 up and down by placing the product 2 to be measured for springback at a measurement reference point.

Springback inspection apparatus 200, 300, when processing a product (2) having a specific shape by forming or bending a sheet material by a press, a spring in which the sheet material is about to be restored to its original state different from the design data dimensions of the product (2). A spring back phenomenon may occur.

Accordingly, the springback inspection apparatus 200 and 300 are required to inspect whether the molded product 2 matches the design data dimensions.

It may include a moving part 100 to move to the inspection position by fixing the molded product 2 for the springback inspection on the upper side of the springback inspection apparatus 200, 300.

The moving part 100 is at the end of the robot arm 120 of the transfer robot 110 and a transfer robot 110 that transfers the product 2 and is positioned above the springback inspection apparatus 200 and 300 It is provided and includes a transfer electromagnet 130 for attaching or separating the product 2 by electromagnetic force.

The robot arm 120 uses an articulated robot arm. At the end of the robot arm 120, the transfer electromagnet 130 may be integrally configured or configured to be detachable.

The transfer electromagnet 130 transfers the product (2) formed of a metal plate from the springback improvement device 400 to the springback inspection device 200, 300, or the springback inspection device 200, 300 In order to improve the springback from the product 2 that has been inspected, it serves to transfer to the springback improving device 400.

The moving unit 100 is connected to the comparison and determination unit 380 to receive design data dimensions of the product 2.

At this time, when the product 2 is placed on the upper side of the springback inspection apparatus 200, 300 through the moving part 100, the measurement reference point is determined by zero adjustment through at least three points of the displacement sensor 10. It can be configured to be fixed.

When the displacement sensor 10 is installed in the springback inspection apparatus 200 and 300, it is advantageous for inspection to be arranged in a row in the horizontal direction and the vertical direction. At this time, the number of displacement sensors 10 arranged in the horizontal and vertical directions is not limited.

The screw-type springback inspection apparatus 200 will be described with reference to FIGS. 5 to 8.

The springback inspection device 200 includes a base 210, a power unit 220 provided in the base 210 to generate power, and a comparison determination unit 380 on the bottom of the product 2 positioned at the measurement reference point. It includes an elevating unit 230 for moving the displacement sensor 10 to have a set interval based on the design data dimensions of the product 2 stored in ).

The base 210 includes an accommodation space 211 in which the power unit 220 is installed. The accommodation space part 211 may provide a space in which the columnar part 220 is installed, as well as a free space in which the lifting part 230 moves up and down.

A cover plate 212 blocking the receiving space 211 is provided on the bottom of the base 211. The cover plate 212 is coupled or separated from the bottom surface of the base 211 by screwing, and is used to install or repair the power unit 220 and the elevating unit 230.

The power unit 220 provided in the springback inspection device 200 may include a motor or a cylinder.

The displacement sensor 10 is provided at the upper end of the lifting unit 230 to be connected to the comparison and determination unit 380 through wireless or wired.

The displacement sensor 10 may be connected to the comparison and determination unit 380 through a wireless transmitter (not shown) built in the upper side of the lifting unit 230.

The displacement sensor 10 may be connected to the comparison determination unit 380 through the lifting unit 230 and the base 210 through a wire not shown.

The lifting unit 230 is connected to the power unit 220 and rotates, and a screw shaft member 240 having a screw thread formed on an outer circumferential surface thereof, and a displacement sensor 10 are provided on the upper side, and the screw shaft member 240 is A screw hole 251 is formed in the center so as to be coupled, and includes an elevating member 250 for elevating by rotation of the screw shaft member 240 and a guide member 260 for guiding the elevating of the elevating member 250.

The screw shaft member 240 is to determine the length in consideration of the vertical operation section of the elevating member 250. The thread formed on the outer circumferential surface of the screw shaft member 240 may include a trivalent thread or a square thread.

The power unit 220 for driving the screw shaft member 240 applies a motor, but it is advantageous to apply a servo motor to accurately control the rotational force.

The lifting member 250 raises and lowers the displacement sensor 10 individually while the product 2 is positioned at the measurement reference point to measure the displacement at each corresponding position.

The guide member 260 is provided on the base 210, the support member 261 provided on the outer circumferential surface of the elevating member 250, and the vertical length on the inner circumferential surface of the support member 261 or the outer circumferential surface of the elevating member 250 It includes a guide protrusion 262 protruding in the direction, and a guide groove 263 recessed in the outer circumferential surface of the lifting member 250 or the inner circumferential surface of the support member 261 so as to be coupled with the guide protrusion 262.

In one embodiment of the present invention, the guide protrusion 262 is shown to be formed on the inner circumferential surface of the support member 261, and the guide groove 263 is shown to be formed on the outer circumferential surface of the elevating member 250.

The guide protrusion 262 and the guide groove 263 are shown to be formed in pairs at 180 degrees apart on the inner circumferential surface of the support member 261 and the outer circumferential surface of the lifting member 250, but the guide protrusion 262 and the guide groove ( The number of formations 263) is not limited.

By configuring the inner diameter of the support member 261 to correspond to the outer diameter of the lifting member 250, the lifting member 250 serves to guide and support the lifting member 250 so as to stably rise and descend without flowing when lifting from the support member 261. Perform.

The support member 261 may be installed on the base 210 by the coupling portion 270.

The support member 261 is installed on the base 210 in any one of a screw coupling method, a press fitting method, or a hook coupling method.

The coupling portion 270 includes a coupling screw groove portion 271 formed in the base 210 and a coupling screw thread portion 272 formed on the lower outer circumferential surface of the support member 261 so as to be fastened to the coupling screw groove portion 271 .

When the product (2) is placed on the upper side of the springback inspection device (200), three of the displacement sensors (10) are arranged in a triangle and used for zero point adjustment, and the rest of the displacement sensor (10) is It can also be used to measure design data dimensions and for comparison purposes. Of course, the three displacement sensors 10 used for zero point adjustment may also be used for dimension measurement.

That is, the method of determining the measurement reference point of the product 2 is the first method of holding the measurement reference point in the springback inspection device 200 by supporting the product 2 using the robot arm 120 of the moving part 100 And, by setting the displacement sensor 10 at three locations and supporting the product 2 for zero point adjustment, the springback inspection device 200 takes the measurement reference point as a second method. At this time, any one of these methods may be applied, but depending on the case, the measurement reference point of the product 2 may be determined using other appropriate methods.

The gear type springback inspection apparatus 300 will be described with reference to FIGS. 9 to 11.

The springback inspection device 300 includes a base 310, an installation member 320 provided with a displacement sensor 10, an extension member 330 extending below the installation member 320, and an extension member ( It includes an elevating driver 340 for moving the displacement sensor 10 by elevating 330.

The base 310 is provided with an accommodation space 311 in which the driving motor 341 of the elevating driver 340 is installed. The accommodation space part 311 may provide a space in which the driving motor 341 is installed, as well as a free space in which the lifting drive unit 340 moves up and down.

A cover plate 312 is provided on the bottom of the base 311 to block the accommodation space 311. The cover plate 312 is coupled or separated from the bottom of the base 311 by screwing, and is used to install or repair the related components of the drive motor 341 and the drive motor 341.

The displacement sensor 10 is characterized in that it is provided at the upper end of the installation member 320 to be connected to the comparison and determination unit 380 through wireless or wired.

The displacement sensor 10 may be connected to the comparison and determination unit 380 through a wireless transmitter (not shown) built in the upper side of the installation member 320.

The displacement sensor 10 may be connected to the comparison determination unit 380 through the extension member 330 and the base 310 through a wire not shown.

The elevating drive unit 340 is formed in the vertical direction on the outer circumferential surface of the driving motor 341, the pinion gear 342 coupled to the shaft of the driving motor 341, and engaged pinion gear ( It includes a rack gear 343 for elevating the extension member 330 according to the rotation of the 342, and a slot member 344 provided on the inner circumferential surface of the extension member 330 and guiding the elevating of the extension member 330. .

It is advantageous to apply a servo motor to the driving motor 341 to accurately control the rotational force.

The rack gear 343 is formed in a recessed groove part 331 that is recessed inward from the outer peripheral surface of the extension member 330.

The depth of the recessed groove portion 331 is such that the peak portion of the gear teeth of the rack gear 343 does not protrude further from the outer diameter of the extension member 330. In some cases, the depth of the recessed groove portion 331 may be formed deeper than the outer diameter of the extension member 330 so as to mesh with the rack gear 343 in a state in which the pinion gear 342 is inserted. In this case, since the pinion gear 342 is inserted into the recessed groove portion 331 and rotates, the recessed groove portion 331 also serves as a vertical guide of the extension member 330.

The extension member 330 is stably elevated in the slot member 344 by the straight induction part 350.

The straight induction part 350 is an inner circumferential surface or extension of the slot member 344 so as to be coupled to the straight groove 351 which is recessed in the outer circumferential surface of the extension member 330 or the inner circumferential surface of the slot member 344, and the straight groove 351 It includes a straight protrusion 352 protruding from the outer circumferential surface of the member 330.

The straight groove 351 and the straight protrusion 352 are shown to be formed one by one on the outer circumferential surface of the extension member 330 and the inner circumferential surface of the slot member 344, but the straight groove 351 and the straight protrusion 352 are formed. The number is not limited.

By configuring the inner diameter of the slot member 344 to correspond to the outer diameter of the extension member 330, the extension member 330 serves to guide and support so as to stably elevate without flowing when elevating from the slot member 344. Perform.

The straight induction part 350 is characterized in that it is formed on the opposite side of the rack gear 343. Thereby, the straight induction part 350 supports the force that pushes the rack gear 343 horizontally by the pinion gear 342 from the opposite side by 180 degrees to maintain the balance of the force, thereby helping the extension member 330 to stably elevate and descend. give.

The slot member 344 may be installed on the base 310 in any one of a screw coupling method, a press fitting method, or a hook coupling method.

The slot member 344 may be installed on the base 310 by the binding part 360.

The binding portion 360 includes a binding screw groove 361 formed in the base 310 and a binding screw thread 362 formed on the lower outer circumferential surface of the slot member 344 to be fastened to the binding screw groove 361 .

When the product (2) is placed on the upper side of the springback inspection device (300), three of the displacement sensors (10) are arranged in a triangle and used for zero point adjustment, and the rest of the displacement sensor (10) is It can also be used to measure design data dimensions and for comparison purposes. Of course, the three displacement sensors 10 used for zero point adjustment may also be used for dimension measurement.

That is, the method of determining the measurement reference point of the product 2 is the first method of holding the measurement reference point in the springback inspection device 300 by supporting the product 2 using the robot arm 120 of the moving unit 100 And, by setting the displacement sensor 10 at three locations and supporting the product 2 for zero point adjustment, the springback inspection device 300 takes the measurement reference point as a second method. At this time, any one of these methods may be applied, but depending on the case, the measurement reference point of the product 2 may be determined using other appropriate methods.

The comparison and determination unit 380 compares the measured dimensions measured by the springback inspection devices 200 and 300 with the design data dimensions of the product 2 to derive a correction dimension of the location where the springback occurred in the product 2 It is a configuration.

The design data dimensions of the product 2 are input in advance when configuring the comparison and determination unit 380. The comparison and determination unit 380 may view data through a monitor of the computer.

The comparison and determination unit 380 determines that there is no springback in the product 2 when the measured dimensions measured by the plurality of displacement sensors 10 match both the design data dimensions of the product 2 and within the error range.

In addition, when the measured dimension measured by the displacement sensor 10 is at least one correction dimension within the error range of the design data dimension of the product 2, the improvement work must be performed through the springback improvement device 400 To judge.

When it is determined that there is no springback in the product 2, the product 2 is moved to a subsequent process by using the moving unit 100 or by hand.

When it is determined that there is a springback in the product 2, information provided by the comparison and determination unit 380 by transferring the product 2 to the upper side of the springback improvement device 400 by using the moving unit 100 or manually On the basis of, the springback improvement work is in progress.

The springback improving device 400 will be described with reference to FIGS. 12 to 14.

The springback improvement device 400 moves and fixes the product 2 when the springback is confirmed in the comparison determination unit 380, and each corresponding position in the product 2 through the correction dimensions of the comparison determination unit 380 It is a configuration that improves the springback of

The fixed electromagnet part 410 is a component that attaches and fixes the product 2 by electromagnetic force.

The correction electromagnet unit 420 is a spring derived from the comparison determination unit 380 measured by the springback inspection apparatus 200 and 300 to correct the springback of the product 2 mounted on the stationary electromagnet unit 410 It is a configuration in which the springback at the corresponding position of the product 2 is corrected through electromagnetic force using the back correction dimension.

The fixed electromagnet part 410 is formed through a frame member 411 supported on the floor, a support member 412 protruding upward from the frame member 411 to support the product 2, and the frame member 411. It is installed in the support member 412 and includes a fixed magnetic force generating unit 413 for generating an electromagnetic force.

The fixed electromagnet part 410 supports the product 2 and fixes it with an electromagnetic force, but may play a role of removing the springback in some cases.

The correction electromagnet unit 420 moves to the corresponding position where the springback exists in the product 2 to remove the springback.

At this time, when a strong force is applied from the correction electromagnet part 420, the corresponding position of the product 2 is pulled toward the correction electromagnet part 420 and the springback is removed, and when a repulsive force is strongly applied from the correction electromagnet part 420, the product 2 The springback is removed while pushing the corresponding position of) to the opposite side of the correction electromagnet part 420.

The correction electromagnet part 420 is a body member 440 that is gripped for manual operation or is connected to the working robot arm 431 of the working robot 430, and extends from the end of the body member 440 to the product 2 Approaching, the working member 450 having a larger area than the body member 440, and a corrective magnetic force generating unit installed on the working member 450 through the body member 440 to correct the springback of the product 2 Including 460.

The body member 440 is characterized in that it is separated and mounted from the working robot arm 431 by a mounting electromagnet member 432 embedded in the working robot arm 431.

The body member 440 is additionally fixed together with the mounting electromagnet member 432 by a detachable portion 470.

The detachable part 470 includes a hook member 471 provided on the working robot arm 431 or the working member 450, a clasp member 472 hooked on the hook member 471, and a working robot arm 431 Alternatively, it includes a restraining lever member 473 provided on the working member 450 and rotatably supported by the mounting member 474 to pull the clasp member 472 and restrain it to the hook member 471.

The hook member 471 is a mounting plate 471a that is installed by welding or screwing to the side of the working robot arm 431 or the working member 450, and extends from the mounting plate 471a and is bent in a U-shape to be cut. It includes a bent member 471b to hang the member 473.

The mounting member 474 is a configuration that is installed by screwing or welding on both sides of the working robot arm 431 or the working member 450, and the clasp member 472 is inserted and caught in the mounting member 474. A departure prevention groove 475 for preventing separation of the 472 is further provided.

The clasp member 472 further protrudes from both sides of the constraining lever member 473 and thus may be inserted into the separation preventing groove 475.

The restraint lever member 473 is a structure that hinges on the mounting member 474, and when the restraint lever member 473 is tilted, the clasp member 472 moves in the hinge direction and is separated from the hook member 471, and the restraint lever When the member 473 is pressed, the clasp member 472 is pulled in the opposite direction of the hinge and is constrained to the hanger member 471.

The outer circumferential surface of the body member 440 is formed in a polygonal shape, and is inserted into the polygonal rotation preventing groove 480 recessed at the end of the working robot arm 431 to prevent rotation.

Although the rotation preventing groove 480 is shown in a square shape, it can be configured in various ways such as a triangle, a pentagon, a hexagon, an octagon, etc., and any configuration may be applied as long as the rotation of the body member 440 is prevented as needed.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is only illustrative, and those of ordinary skill in the field to which the technology pertains, various modifications and other equivalent embodiments are possible. I will understand.

Therefore, the true technical protection scope of the present invention should be determined by the following claims.

2: Product 10: Displacement sensor
100: moving unit 110: transfer robot
120: robot arm 130: transfer electromagnet
200: springback inspection device 210: base
211: accommodation space 212: cover plate
220: power unit 230: elevating unit
240: screw shaft member 250: elevating member
251: screw hole 260: guide member
261: support member 262: guide protrusion
263: guide groove 270: coupling portion
271: coupling screw groove 272: coupling screw protrusion
300: springback inspection device 310: base
311: accommodation space part 312: cover plate
320: installation member 330: extension member
331: recessed groove portion 340: lifting drive portion
341: drive motor 342: pinion gear
343: rack gear 344: slot member
350: straight induction part 351: straight groove
352: straight protrusion 360: bonding part
361: Binding screw groove 362: Binding screw protrusion
400: springback improvement device 410: fixed electromagnet part
411: frame member 412: support member
413: fixed magnetic force generation unit 420: correction electromagnet unit
430: working robot 431: working robot arm
432: mounting electromagnet member 440: body member
450: working member 460: correction magnetic force generating unit
470: detachable part 471: hook member
472: clasp member 473: restraint lever member
474: mounting member 475: separation prevention groove
480: rotation prevention groove

Claims (6)

In the springback inspection and improvement system for inspecting and improving the springback of the molded product, it includes a springback inspection device, a comparison judgment unit, and a springback improvement device,
The springback improvement device includes: a fixed electromagnet part for fixing the product with electromagnetic force; And
In order to correct the springback of the product mounted on the fixed electromagnet, the springback at the corresponding position of the product is measured by the springback inspection device and derived from the comparison determination unit. Including; correction electromagnet unit to correct,
The correction electromagnet unit may include a body member that is gripped for manual operation or connected to a working robot arm of a working robot;
A working member extending from an end portion of the body member to access the product and having a larger area than the body member; And
Includes; a correction magnetic force generating unit installed on the working member through the body member to correct the springback of the product,
The body member is separated and mounted from the working robot arm by a mounting electromagnet member built into the working robot arm,
The body member is additionally fixed together with the mounting electromagnet member by a detachable portion,
The detachable part may include a hook member provided on the working robot arm or the working member;
A clasp member caught on the clasp member; And
A restraint lever member provided on the working robot arm or the working member and rotatably supported by the mounting member to pull the clasp member and restrain the clasp member to the hook member, and
The hook member,
An installation plate installed by welding or screwing to the side of the working robot arm or the working member; And
Includes; a bending member extending from the installation plate and bent in a U-shape to hang the clasp member,
The springback improvement device of the springback inspection and improvement system, characterized in that the mounting member is further provided with a separation preventing groove for preventing the separation of the latch member because the latch member is inserted and caught.
The method of claim 1,
The fixed electromagnet part,
A frame member supported on the floor;
A support member protruding upward from the frame member to support the product; And
A fixed magnetic force generating unit installed in the support member through the frame member to generate an electromagnetic force;
A springback improvement device of a springback inspection and improvement system comprising: a.
delete delete delete The method of claim 1,
The body member is inserted into a polygonal rotation preventing groove recessed in the end of the working robot arm to prevent rotation.

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