A riveting device capable of preventing fastening failures and a riveting method using the same.

The riveting device with laser sensors and a locking mechanism addresses the issue of missed fastenings in battery module manufacturing, ensuring accurate riveting and reducing defects.

JP7852983B2Active Publication Date: 2026-04-28LG ENERGY SOLUTION LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
LG ENERGY SOLUTION LTD
Filing Date
2023-08-07
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The riveting process in manufacturing battery modules often results in missed fastenings and defects due to manual operation, leading to increased costs and decreased production efficiency.

Method used

A riveting device equipped with a riveting section, moving section, position sensors, and a locking mechanism that uses laser sensors to measure and ensure precise positioning of riveting, preventing fastening at wrong positions and omissions.

Benefits of technology

Prevents fastening defects by ensuring accurate riveting through precise positioning, reducing production errors and enhancing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a riveting device capable of preventing the occurrence of fastening leakage and a riveting method using the same, and relates to a riveting device capable of preventing the occurrence of fastening leakage, comprising: a riveting unit; a moving unit connected to the riveting unit and moving the riveting unit; a first moving guide unit guiding the longitudinal movement of the moving unit; a pair of second moving guide units located at both longitudinal ends of the first moving guide unit and guiding the widthwise movement of the first moving guide unit; a first position sensor provided below one side end of the first moving guide unit; and a second position sensor provided below one side end of the pair of second moving guide units.
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Description

Technical Field

[0001] This application claims the benefit of priority based on Korean Patent Application No. 10-2022-0109710 filed on August 31, 2022, and all the contents disclosed in the literature of the Korean patent application are included as part of this specification.

[0002] The present invention relates to a riveting device capable of preventing the occurrence of fastening leakage and a riveting method using the same. Specifically, by moving a riveting part to a riveting position, it relates to a riveting device capable of preventing the occurrence of fastening leakage that can prevent fastening from leaking and a riveting method using the same.

Background Art

[0003] Recently, due to air pollution caused by the use of fossil fuels and the development of alternative energy due to energy depletion, the demand for secondary batteries that can store the generated electrical energy has been increasing. Rechargeable secondary batteries are closely used in daily life such as mobile devices, electric vehicles, and hybrid electric vehicles.

[0004] Secondary batteries used as an energy source for various electronic devices that are essential in modern society have an increasing required capacity due to the increase and complexity of the usage amount of mobile devices and the development of electric vehicles, etc. To meet the needs of users, a large number of battery cells are arranged in small devices, but battery modules that electrically connect a large number of battery cells or battery packs equipped with a large number of such battery modules are used in vehicles, etc.

[0005] On the other hand, during manufacturing, a battery module houses a plurality of battery cells in a module case and seals the module case with a rivet gun or the like to protect them.

[0006] However, during the riveting process, workers directly operate the rivet gun to individually fasten bolts and other fastening components to their respective positions, which can sometimes lead to missed fastenings and resulting defects.

[0007] Therefore, during the riveting process, there are limitations to workers checking the fastening position one by one, which can lead to missed fastening positions, resulting in the production of defective products, increased costs, and decreased production efficiency. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] Korean Published Patent No. 10-2005-0015633 [Overview of the Initiative] [Problems that the invention aims to solve]

[0009] To solve the aforementioned problems, one objective of the present invention is to provide a riveting apparatus and a riveting method using the same that can prevent defects caused by improper fastening of fastening members during the riveting process.

[0010] Furthermore, one objective of the present invention is to provide a riveting device and a riveting method using the same that can prevent fastening at the wrong position during the riveting process and prevent the occurrence of fastening omissions. [Means for solving the problem]

[0011] To achieve the above objectives, a riveting apparatus according to one aspect of the present invention is characterized by including: a riveting section (100); a moving section (200) connected to the riveting section (100) for moving the riveting section; a first moving guide section (300) for guiding the movement of the moving section (200) in the longitudinal direction (X-axis); a pair of second moving guide sections (400) located at both longitudinal ends of the first moving guide section (300) for guiding the movement of the first moving guide section (300) in the width direction (Y-axis); a first position sensor (500) provided on the underside of one end of the first moving guide section (300); and a second position sensor (600) provided on the underside of one end of the pair of second moving guide sections (400).

[0012] Furthermore, in a riveting apparatus according to one aspect of the present invention, the riveting section (100) is characterized by including a riveting section body (110), a riveting section head (120) provided on the lower side of the riveting section body (110), a switch (130) located on the upper end side of the riveting section body (110), and a locking section (140) located at the lower end of the switch (130).

[0013] Furthermore, in a riveting apparatus according to one aspect of the present invention, the locking portion (140) is characterized by including a locking portion body (141) connected to the riveting portion body (110), and a locking control unit (142) a portion of which is inserted into the locking portion body (141).

[0014] Furthermore, in a riveting device according to one aspect of the present invention, the locking body (141) incorporates a hydraulic device, and the locking control unit (142) is characterized in that it can be raised and lowered by the hydraulic device.

[0015] Furthermore, in a riveting apparatus according to one aspect of the present invention, the movable part (200) includes a movable part body (210), a guide rail (220) formed on the side surface of the movable part body (210) in the height direction (Z-axis), a first connecting part (230) connecting the guide rail (220) and the riveting part (100), and a second connecting part (240) connecting the movable part body (210) and the first movable axis (310), wherein the first connecting part (230) moves vertically along the guide rail (220).

[0016] Furthermore, in a riveting apparatus according to one aspect of the present invention, the first movable guide portion (300) is characterized by including a first movable shaft (310), third connecting portions (320) located at both ends of the first movable shaft (310), and a cover member (330) that surrounds a portion of the area of ​​one of the third connecting portions (320).

[0017] Furthermore, in a riveting apparatus according to one aspect of the present invention, the second movable guide portion (400) is characterized by including a second movable shaft (410) and support members (420) located at both ends of the second movable shaft (410).

[0018] Furthermore, in a riveting apparatus according to one aspect of the present invention, the first position sensor (500) is characterized in that it is a laser sensor using a laser.

[0019] Furthermore, in a riveting apparatus according to one aspect of the present invention, the laser sensor is characterized by irradiating the second connecting portion (240) with a laser.

[0020] Furthermore, in a riveting apparatus according to one aspect of the present invention, the second position sensor (600) is characterized in that it is a laser sensor using a laser.

[0021] Also, in the riveting device according to one aspect of the present invention, the laser sensor irradiates a laser toward the third connecting portion (320).

[0022] Also, in the riveting device according to one aspect of the present invention, two or more first moving shafts (310) are formed.

[0023] Also, a riveting method using the riveting device according to one aspect of the present invention includes a step of moving a riveting portion, a step of checking whether the riveting portion is at a predetermined position, a step of performing a riveting process through the riveting portion, and a step of moving the riveting portion to the next position.

[0024] Also, in the riveting method according to one aspect of the present invention, in the step of checking whether the riveting portion is at a predetermined position, when the riveting portion is not at the predetermined position, the riveting portion is locked by a locking portion.

[0025] Also, in the riveting method according to one aspect of the present invention, after moving the riveting portion again, the process is executed again from the step of checking whether the riveting portion is at a predetermined position.

[0026] Also, one aspect of the present invention can be a battery module manufactured using the riveting device having the above-described characteristics.

Effect of the Invention

[0027] As described above, according to the riveting device and the riveting method using the same according to one aspect of the present invention, which can prevent the occurrence of fastening leakage, by providing the first position sensor and the second position sensor, there is an advantage that the coordinates of the riveting portion can be measured to prevent the fastening leakage of the fastening member.

[0028] Furthermore, according to one aspect of the present invention, a riveting device and a riveting method using the same, which can prevent the occurrence of fastening omissions, the riveting section is equipped with a locking section, which has the advantage of preventing fastening at the wrong position and thus preventing the occurrence of defective products. [Brief explanation of the drawing]

[0029] [Figure 1] This is a perspective view showing a riveting apparatus according to one preferred embodiment of the present invention. [Figure 2] This is a plan view showing the riveting section of a riveting apparatus according to a preferred embodiment of the present invention. [Figure 3] This is a flowchart illustrating a riveting method using a riveting apparatus according to one embodiment of the present invention. [Modes for carrying out the invention]

[0030] Hereinafter, embodiments that allow a person with ordinary skill in the art to carry out the present invention will be described in detail based on the attached drawings. However, in describing the operating principles of preferred embodiments of the present invention in detail, if it is determined that a specific description of a related known function or configuration may unnecessarily obscure the gist of the present invention, such detailed description will be omitted.

[0031] Furthermore, the same reference numerals shall be used throughout the drawings for parts that have similar functions and operations. Throughout the specification, when it is said that one part is connected to another part, this includes not only direct connections but also indirect connections through other elements in between. Also, when it is said that a component is included, unless otherwise stated, it does not mean that other components are excluded, but rather that other components may be included.

[0032] The following will describe, with reference to the attached drawings, a riveting device that can prevent fastening failures according to the present invention and a riveting method using the same.

[0033] Figure 1 is a perspective view showing a riveting apparatus according to a preferred embodiment of the present invention, and Figure 2 is a plan view showing the riveting section of the riveting apparatus according to a preferred embodiment of the present invention.

[0034] Referring to Figures 1 and 2, a preferred embodiment of the present invention includes a riveting apparatus comprising a riveting unit 100, a moving unit 200, a first moving guide unit 300, a second moving guide unit 400, a first position sensor 500, and a second position sensor 600.

[0035] First, the riveting section 100 is for fastening fastening members to a predetermined position and includes a riveting section body 110, a riveting section head 120, a switch 130, and a locking section 140.

[0036] The riveting section body 110 can have a columnar shape. While shown as a cylindrical shape in the drawings as an example, it is not limited to this.

[0037] Furthermore, the riveting section body 110 can incorporate a hydraulic system (not shown) internally.

[0038] The riveting head 120 is located at the lower end of the riveting body 110 and is in close contact with the object to fasten the fastening member (not shown) to the object. It receives hydraulic pressure via a hydraulic device built into the riveting body 110 to fasten the fastening member.

[0039] The switch 130 is located on the side of the riveting section body 110, and when pressed by an operator, it transmits a signal to a hydraulic system built into the riveting section body 110, which then supplies hydraulic pressure in the direction of the riveting section head 120.

[0040] The locking unit 140 may include a locking unit body 141 and a locking control unit 142.

[0041] The locking section body 141 can be located on the side of the riveting section body 110 and can be positioned so as to overlap with the switch 130 on a vertical extension line.

[0042] The locking mechanism body 141 can incorporate a hydraulic system.

[0043] The lock control unit 142 may have a rod shape, and a portion of it may be inserted into or pass through the lock body 141, and it may be raised and lowered by a hydraulic device built into the lock body 141.

[0044] When the riveting unit 100 moves and leaves its predetermined position, the lock control unit 142 can be raised by the hydraulic system of the lock unit body 141 and brought into close contact with the switch 130, as shown in Figure 2(a), thereby interrupting the riveting process.

[0045] Furthermore, when the riveting section 100 is precisely positioned at the fastening location, as shown in Figure 2(b), the lock control unit 142 can be lowered by the hydraulic system of the lock section body 141, allowing the riveting process to continue.

[0046] Next, the movable section 200 may include a movable section body 210, a guide rail 220, a first connecting section 230, and a second connecting section 240.

[0047] The movable body 210 can have a flat plate shape, as shown in the drawing, and is not limited to a columnar shape or the like.

[0048] The guide rail 220 can be located on one side of the movable body 210, is connected to the first connecting part 230, and can move and guide the first connecting part 230 in the vertical direction.

[0049] As described above, the first connecting section 230 is connected to the guide rail 220 on one side and to the rivet section body 110 of the rivet section 100 on the other side, thereby enabling the rivet section 100 to move vertically along the guide rail 220.

[0050] The second connecting portion 240 is located on the upper part of the movable portion body 210 and allows the riveting portion 100, which is connected to the movable portion body 210 and the movable portion 200, to move along the first movable axis 310 of the first movable guide portion 300 in the X-axis direction shown in the drawing.

[0051] Next, the first movable guide section 300 may include a first movable shaft 310, a third connecting section 320, and a cover member 330.

[0052] The first movable shaft 310 is connected to the second connecting portion 240 of the movable portion 200 and can guide the movement of the first movable portion 200 in the X-axis direction.

[0053] Here, preferably two or more first movable shafts 310 are provided and can be connected to the second connecting portion 240.

[0054] This has the advantage of improving accuracy by preventing the occurrence of positional error factors such as vibrations that may occur when the movable part 200 connected to the first movable axis 310 moves along the first movable axis 310, and distortion of the movable part 200 that may occur when one first movable axis 310 is formed.

[0055] The third connecting portion 320 may be formed at both ends of the first movable shaft 310.

[0056] Each third connecting portion 320 is connected on one side to the first moving shaft 310 and on the other side to the second moving shaft 410 of the second moving guide portion 400, thereby enabling the first moving guide portion 300 to move along the second moving shaft 410.

[0057] The cover member 330 may be formed on the upper surface, lower surface, and side surface of the third connecting portion 320 on one side, but may not be formed on the side surface in the direction of the second movable axis 410.

[0058] The second moving guide section 400 may include a second moving shaft 410 and a support member 420.

[0059] The second movable axis 410 can be positioned at both ends of the first movable axis 310 so as to be perpendicular to each other.

[0060] Each second movement shaft 410 can be connected to the first movement shaft 310 via a third connecting portion 320, and can guide the movement of the first movement guide portion 300 in the Y-axis direction.

[0061] Support members 420 may be provided at both ends of the second movable shaft 410. The support members 420 can be connected and fastened to a wall or other device at the installation site, thereby supporting and fixing the riveting device according to the present invention.

[0062] The support member 420 can be installed at a desired position using bolt fastening or adhesive members, and is not limited to any support and fixing method that allows it to be installed at a desired position.

[0063] The first position sensor 500 may be a laser sensor that emits a laser, and can be located below the third connecting portion 320 on one side of the first moving guide portion 300, and more preferably on the lower surface of the cover member 330.

[0064] The first position sensor 500 irradiates a laser toward the second connecting portion 240 of the movable portion 200 to measure the position coordinates of the riveting portion 100 in the X-axis direction.

[0065] The second position sensor 600 may be a laser sensor that emits a laser, and can be located below one of the support members 420 of the second moving guide section 400.

[0066] The second position sensor 600 irradiates a laser toward the third connecting portion 320 of the first moving guide portion 300 to measure the position coordinates of the riveting portion 100 in the Y-axis direction.

[0067] Therefore, the first position sensor 500 and the second position sensor 600 can measure the XY axis coordinates of the riveting section 100 by irradiating it with a laser and move it to a predetermined position.

[0068] Furthermore, by managing the fastening position as coordinates using the first position sensor 500 and the second position sensor 600, there is the advantage of preventing the occurrence of positions where the fastening member is not properly fastened.

[0069] Figure 3 is a flowchart illustrating a riveting method using a riveting device according to one embodiment of the present invention.

[0070] Referring to Figure 3, a riveting method using a riveting apparatus according to one embodiment of the present invention may include the steps of: moving the riveting unit 100; confirming that the riveting unit 100 is in a predetermined position; performing a riveting process via the riveting unit 100; and moving the riveting unit 100 to the next position.

[0071] The step of moving the riveting unit 100 is to move the riveting unit 100 to a predetermined coordinate via the moving unit 200, the first moving guide unit 300, and the second moving guide unit 400.

[0072] The step of confirming whether the riveting section 100 is positioned in a predetermined location involves measuring the XY axis coordinates of the riveting section 100 using the first position sensor 500 and the second position sensor 600, and confirming whether they match the predetermined coordinates.

[0073] In this case, if the XY axis coordinates of the riveting section 100 measured by the first position sensor 500 and the second position sensor 600 do not match predetermined coordinates, the lock control unit 142 of the lock section 140 rises to prevent the switch 130 from operating, thereby preventing fastening in the wrong position.

[0074] Furthermore, the lock control unit 142 can prevent the switch 130 from being activated, and the riveting unit 100 can be moved back to a predetermined coordinate.

[0075] The step in performing the riveting process via the riveting unit 100 is the step in which, after the riveting unit 100 is positioned at a predetermined coordinate, the riveting unit 100 descends along the guide rail 220 and fastens the fastening member to the target object.

[0076] The step of moving the riveting section 100 to the next position is the step in which, after fastening the fastening member via the riveting section 100, the riveting section 100 rises along the guide rail 220, and then moves to the next fastening position by the moving section 200, the first moving guide section 300, and the second moving guide section 400.

[0077] Here, after moving to the next fastening position, the process can be repeated starting again from the step of confirming that the riveting unit 100 is in the predetermined position, and the steps of performing the riveting process via the riveting unit 100 and moving the riveting unit 100 to the next position can be repeated.

[0078] The present invention may be a battery module manufactured using the riveting apparatus described above. Furthermore, the present invention may be a device equipped with the battery module of the present invention. For example, the device may be an electronic device containing a large-capacity battery, such as in an electric vehicle, hybrid vehicle, or plug-in hybrid electric vehicle.

[0079] Although specific parts of the present invention have been described in detail above, to a person with ordinary skill in the art, such specific descriptions are merely preferred modes of implementation and do not limit the scope of the present invention. It will be obvious to a person skilled in the art that various changes and modifications are possible within the scope of the present invention and the technical idea, and it goes without saying that such variations and modifications fall within the scope of the appended claims. [Explanation of symbols]

[0080] 100 Riveting Section 110 Riveting section of the fuselage 120 Riveting Head 130 switches 140 Locking part 141 Locking section of the fuselage 142 Lock Control Unit 200 Mobile Unit 210 Mobile body 220 Guide Rail 230 1st connection part 240 2nd connection part 300 First Mobile Guide Section 310 1st movement axis 320 3rd connection part 330 Cover component 400 Second Mobile Guide Section 410 2nd movement axis 420 Support member 500 First position sensor 600 Second position sensor

Claims

1. The riveting section, A moving part connected to the riveting part and for moving the riveting part, A first movement guide unit that guides the longitudinal movement of the aforementioned moving unit, A pair of second movement guides provided at both ends in the longitudinal direction of the first movement guide, the pair of second movement guides that guide the movement of the first movement guide in the width direction, A first position sensor provided on the lower side of one end of the first movable guide portion, the first position sensor for measuring the longitudinal position of the riveting portion, A second position sensor provided on the lower side of one end of the pair of second movable guide portions, the second position sensor for measuring the position in the width direction of the riveting portion, Riveting equipment, including a riveting device.

2. The riveting section is, The riveted section of the body, A riveting head is provided on the lower side of the riveting section body, A switch located on the upper side of the riveting section body, A locking portion located at the lower end of the aforementioned switch, A riveting apparatus including, The switch is for activating fastening by the riveting portion at the longitudinal position of the riveting portion measured by the first position sensor and the widthwise position of the riveting portion measured by the second position sensor. The riveting device according to claim 1, wherein the locking part is a lock that prevents fastening by the riveting part at an incorrect position by locking the operation of the switch when the longitudinal position of the riveting part measured by the first position sensor and the widthwise position of the riveting part measured by the second position sensor are not constant with a predetermined position.

3. The aforementioned locking mechanism is The locking section body is connected to the riveting section body, A lock control unit, a portion of which is inserted into the aforementioned lock body, The riveting apparatus according to claim 2, including the following:

4. The aforementioned locking mechanism incorporates a hydraulic device. The riveting apparatus according to claim 3, wherein the lock control unit can be raised and lowered by the hydraulic device.

5. The aforementioned movable part is Mobile body and A guide rail formed in the height direction on the side surface of the aforementioned movable body, A first connecting portion that connects the guide rail and the riveting portion, A second connecting part that connects the moving part body and the first moving shaft, A riveting apparatus including, The first movable shaft is provided on the first movable guide section, The riveting apparatus according to claim 1, wherein the first connecting portion moves vertically along the guide rail.

6. The first moving guide unit is, The first axis of movement and Third connecting parts located at both ends of the first movable shaft, A cover member that surrounds a portion of the area of ​​the third connecting portion on one side, A riveting apparatus including, The third connecting portion connects the first moving shaft of the first moving guide portion and the second moving shaft of the second moving guide portion. The second moving guide unit is, The aforementioned second movement axis and, Support members located at both ends of the second movable axis, Includes, The second movable axis is for guiding the movement of the first movable guide portion in the width direction. The riveting device according to claim 5, wherein the support member supports and fixes the riveting device to the object to be installed.

7. The riveting apparatus according to claim 6, wherein the first position sensor is a laser sensor using a laser.

8. The riveting apparatus according to claim 7, wherein the laser sensor irradiates a laser toward the second connecting portion.

9. The riveting apparatus according to claim 6, wherein the second position sensor is a laser sensor using a laser.

10. The riveting apparatus according to claim 9, wherein the laser sensor irradiates a laser toward the third connecting portion.

11. The riveting apparatus according to claim 6, wherein two or more of the first moving axes are formed.

12. A riveting method using the riveting apparatus described in any one of claims 1 to 11, The steps include moving the riveting section using the moving section, the first moving guide section, and the second moving guide section, The first position sensor and the second position sensor confirm whether the riveting portion is positioned at a predetermined location; The riveting unit performs the riveting process via the riveting unit, The steps include moving the riveting section to the next position using the moving section, the first moving guide section, and the second moving guide section, Riveting methods, including those mentioned above.

13. A riveting method using the riveting apparatus described in claim 2, The riveting method according to claim 12, wherein, at the stage of confirming whether the riveting portion is positioned in a predetermined position, if the riveting portion is not positioned in a predetermined position, the locking portion is locked by the locking portion.

14. The riveting method according to claim 13, further comprising moving the riveting part again and then repeating the process from the step of confirming whether the riveting part is in a predetermined position.

Citation Information

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