KR20230051825A - An Automatic Assembling Method for a Rotating Hinge Cylinder and an Assembling Apparatus for the Same - Google Patents

Abstract

The present invention relates to a method for automatically assembling a rotary hinge cylinder and an assembly apparatus therefor. The method for automatically assembling the rotary hinge cylinder comprises: a step of continuously inserting the rotary hinge cylinder and fixing the same to a plurality of fixing jigs formed on a rotary table; a step of coupling a cap to the hinge cylinder fixed to the fixing jig; a step of assembling a bolt for fixing the cap; a step of inspecting a torque or a noise of the rotary hinge cylinder on which the bolt is assembled; and a step of in which a good product and a defective product are discharged along different routes. An objective of the present invention is to provide the method for automatically assembling the rotary hinge cylinder, capable of automatically coupling or fixing the cap and a pin of the rotary cylinder containing part therein by automatically fixing the same, and the assembly apparatus therefor.

Description

An Automatic Assembling Method for a Rotating Hinge Cylinder and an Assembling Apparatus for the Same}

The present invention relates to a method for automatically assembling a rotating hinge cylinder and an assembly device therefor.

Opening and closing doors may be applied to home appliances such as refrigerators or various types of storage or storage devices, and the opening and closing doors may be operated in a rotational structure. In addition, a rotational hinge cylinder may be applied to rotate the opening/closing door. During operation of the opening/closing door, various types of lubricants may be injected into the rotating hinge to seal it in order to prevent noise caused by rotation of the rotating hinge or to smoothly operate the rotating hinge. Patent Publication No. 10-2011-0050814 discloses a hinge device capable of adjusting closing force and closing speed. In addition, Patent Publication No. 10-2016-0033805 relates to a hinge torsion bar durability test device capable of performing an endurance test on a hinge torsion bar mounted inside a trunk room of a vehicle to help open a trunk lid under the same conditions as actual use conditions Initiate. The rotary hinge may be mass-produced and put into the refrigerator assembly process, and the rotary hinge may be manufactured by combining a plurality of parts. When such components are coupled, the cap may be coupled and the pin may be fixed. The coupling process of the parts may be performed manually or automatically, but it is difficult to perform the coupling of the pins manually. After the rotation hinge is assembled, the working condition of the hinge must be inspected. This inspection process needs to be done automatically. However, the prior art or known art does not disclose a technique capable of automatically coupling such a pin or automatically inspecting an assembled rotary hinge.

The present invention is to solve the problems of the prior art and has the following object.

Prior Art 1: Patent Publication No. 10-2011-0050814 (Sejin Industry Co., Ltd., published on May 17, 2011) Hinge device Prior Art 2: Patent Publication No. 10-2016-0033805 (Daewon Kangup Co., Ltd., published on March 29, 2016) Hinge torsion bar durability test device

An object of the present invention is to provide an automatic assembly method and an assembly device for a rotary hinge cylinder capable of automatically coupling or fixing a cap and a pin of a rotary cylinder having parts accommodated therein by means of automatic fixing.

According to a preferred embodiment of the present invention, an automatic assembly method of a rotary hinge cylinder includes the steps of continuously inputting the rotary hinge cylinder and fixing them to a plurality of fixing jigs formed on a rotary table; coupling the cap to the hinge cylinder fixed to the fixing jig; Assembling a bolt for fixing the cap; Inspecting the torque or noise of the rotating hinge cylinder to which the bolt is assembled; and discharging the normal product and the defective product along different paths.

According to another preferred embodiment of the present invention, an automatic assembly device for a rotating hinge cylinder includes a rotatable disk-shaped rotary table; A plurality of fixing jigs disposed along the edge of the rotary table 23 and capable of fixing the hinge cylinder; and means for assembling or inspecting the hinge cylinder in each fixing jig, and each of the plurality of fixing jigs includes a cylindrical jig body and an insertion groove formed in the jig body.

According to another preferred embodiment of the present invention, the rotating hinge cylinder includes a cylinder body capable of accommodating parts therein; and a coupling leg extending from a lower portion of the cylinder body in a direction perpendicular to the cylinder body, and a cap continuously supplied from one fixing jig is coupled to an upper portion of the cylinder body.

The method for automatically assembling a rotating hinge cylinder or an assembly device therefor according to the present invention enables hinge caps to be continuously coupled through an automated process. Alternatively, the automatic inspection of the completed hinge cylinder is possible while the pin for fixing the cap is automatically coupled. The assembling method or device according to the present invention enables, for example, a torque test and a noise test of a rotating hinge continuously. The assembly or device according to the present invention can be applied to various assembly processes or inspection processes, and the present invention is not limited thereby.

1 illustrates an embodiment of a method for automatically assembling a rotating hinge cylinder according to the present invention.
2 to 5 show an embodiment of a device applied to each process of the automatic assembly method according to the present invention.
Figure 6 shows an embodiment of the rotating hinge cylinder assembled in the assembly method or assembly device according to the present invention.

Below, the present invention will be described in detail with reference to the embodiments presented in the accompanying drawings, but the embodiments are for a clear understanding of the present invention, and the present invention is not limited thereto. In the following description, components having the same reference numerals in different drawings have similar functions, so repeated descriptions are not made unless necessary for understanding the invention, and well-known components are briefly described or omitted, but the present invention It should not be understood as being excluded from the embodiment of.

1 illustrates an embodiment of a method for automatically assembling a rotating hinge cylinder according to the present invention.

Referring to FIG. 1 , the method of automatically assembling a rotating hinge cylinder includes sequentially inputting the rotating hinge cylinder and sequentially fixing the rotating hinge cylinder to a plurality of fixing jigs formed on a rotating table (P11); coupling the cap to the hinge cylinder fixed to the fixing jig (P12); Assembling a bolt for fixing the cap (P13); A step of inspecting the torque or noise of the rotating hinge cylinder to which the bolt is assembled (P15, P16); and steps P17 and P18 in which normal products and defective products are discharged along different paths.

The rotating hinge cylinder may have a planar coupling leg extending in a direction parallel to the plane at a lower portion thereof while being generally cylindrical. For example, the rotation hinge may have a function of being installed on a door of a refrigerator and automatically or manually closing the door after opening at a predetermined angle. The rotation hinge may be applied to doors of various products including refrigerators, and is not limited by the type of product to which it is applied. The rotary hinge cylinder can be moved along the conveyor in the form of an assembly hinge, for example, with a spring, shaft or similar parts for actuation built inside, the cap is not engaged and thus the unfinished can be in the form A cap is coupled to such an assembly hinge, a bolt is fixed (P14), and after the inspection process (P15, P16) is performed, it may become a rotating hinge cylinder. A number of assembly hinges may be made in a manual or automated process and may be supplied by means of transport such as a conveyor. A plurality of assembling hinges can be moved along the conveyor, and each assembly hinge can be separated and prepared in a feeding position while the conveyor's conveyance is adjusted. Processes can be controlled by the operation module, and the operation module can include various buttons required for operation, such as a start button, a stop button or an emergency button. The assembly jig transported by the conveyor may be fixed to a fixing jig formed on the rotary table. The rotary table may have a disk shape, and a plurality of fixing jigs may be circularly arranged along the rotary table. A plurality of fixing jigs may be disposed at regular intervals, and the number of fixing jigs may be determined according to the number of assembly processes or inspection processes. Different fixing jigs may have the same or similar structures, and the fixing jigs may rotate as the rotation table rotates. The assembly hinge may be fixed to each fixing jig at a predetermined position (P11), and each process may be performed according to the rotation of the fixing jig. A plurality of caps stored in the cap hopper may be moved along a cap transfer path and put into a fixing jig to be fixed. The cap can be assembled to the upper part of the assembly hinge fixed to the fixing jig by the cap fixing module (P12). The cap may be coupled to the top of the assembly hinge, and the cap may be fixed by a fixing means such as a bolt or pin. For example, the cap may be fixed by coupling at least one pin or bolt to at least one fastening hole formed along the edge of the cap (P12). When the cap is coupled to the assembly hinge in this way (P12), it can be detected whether or not there is a defect in the coupled state (P13). Defect detection may be performed by inserting a sensing member through a hole formed in the center of the cap. When the sensing member is inserted and pressure is applied to the inside of the assembly hinge, a normal state is achieved when the internal parts remain fixed in a predetermined position. In contrast, when parts inside the hinge are detached or out of alignment due to pressure applied by the sensing member, a defective assembly state occurs. The position of the internal parts may be detected by, for example, a position detection sensor such as a horseshoe magnet, but is not limited thereto. When the defect inspection is completed in this way (P13), a rigid fastening means such as a bolt is coupled so that the cap is completely coupled to the assembly hinge, so that a rotating hinge cylinder can be made. Inspection of the manufactured rotating hinge cylinder may be performed. The inspection of the rotating hinge cylinder may include, for example, torque measurement (P15) for measuring the torque value required for rotation of the rotating cylinder or noise measurement (P16) for measuring noise generated during the rotation of the rotating cylinder. but not limited thereto. Such torque measurement (P15) or noise measurement (P16) may be measured by appropriate measuring means. In the process of torque measurement (P15) or noise measurement (P16), normality can be determined, normal products and defective products can be determined, and normal products and defective products can be discharged through the defective discharge path and the normal discharge path, respectively. It can (P17, 18). The bad discharge path and the normal discharge path can be formed independently. In this way, the method according to the present invention allows the bolt coupling, defect inclination, and operation inspection process to be performed continuously by an automated process from the coupling of the cap.

In the following the device for such a method according to the invention is described.

2 to 5 show an embodiment of a device applied to each process of the automatic assembly method according to the present invention.

Figure 2 shows an embodiment of a rotating hinge cylinder assembly device, the assembly device includes a rotatable disc-shaped rotary table 23; A plurality of fixing jigs 24 disposed along the edge of the rotary table 23 and capable of fixing the hinge cylinder; And a means for assembling or inspecting the hinge cylinder in each fixing jig 24, each of the plurality of fixing jigs 24 has a cylindrical jig body 24a and an insertion groove formed in the jig body 24a (24b).

The rotation table 23 may have an index table structure that can be rotated by a predetermined angle while being a disk shape as a whole. A plurality of fixing jigs 24 may be disposed along the edge or circumference of the upper surface of the rotary table 23, and the plurality of fixing jigs may be arranged to have the same or similar circumferential angles. For example, eight fixing jigs 24 may be arranged to have a uniform circumferential angle, and in each fixing jig 24, as described in FIG. 1, the inputting process (P11); Cap bonding process (P12); assembly defect inspection process (P13); Cap fixing process by bolt assembly (P14); Torque measurement process (P15); noise measurement process (P16); Defective product discharge process (P17); And a normal product discharging process (P18) may proceed. Operating switches 22a and 22b may be installed in the input block 21, and the rotary table 23 may be manually rotated by operating the operating switches 22a and 22b. Alternatively, the processes P11 to P18 may be performed at each position while the rotation table 23 is rotated by an automatic process. The number of fixing jigs 24 may be determined by the number of processes, and the present invention is not limited thereby. When one of the hinge cylinders (HC) continuously supplied through the conveyor is located in the input block 21, it can be fixed to the fixing jig 24 located in front of the input block 21 manually or by appropriate means. there is. The fixing jig 24 may have an appropriate structure capable of fixing the hinge cylinder HC, and may include, for example, a cylindrical jig body 24a and an insertion groove 24b formed in the jig body 24a. there is. The bottom surface of the jig body 24a may be fixed at a predetermined position of the rotary table 23, and the insertion groove 24b is formed by cutting a part of the jig body 24a from the top surface along the height direction or length direction. It can be. The insertion groove 24b may have a hexahedral shape extending in a radial direction from a central portion, and may have a shape in which a circumferential portion is opened in a radial direction. The open portion may form an inlet inclined in the radial direction, and optionally the hinge cylinder (HC) may be rotated clockwise or counterclockwise while the hinge cylinder (HC) is fixed to the insertion groove (24b). structure can be made. The fixing jig 24 may be made of various structures capable of fixing the hinge cylinder HC, and the present invention is not limited thereto.

The hinge cylinder HC may have an L shape having a body extending linearly as a whole and a coupling leg extending in a vertical direction with respect to the body at a lower end of the body. The body of the hinge cylinder having such a structure may be fixed to the jig body 24a, and the coupling leg may protrude outward through the insertion groove 24b. When the hinge cylinder HC is fixed to one fixing jig 24, the rotary table 23 can be rotated, and another hinge cylinder HC is attached to the other fixing jig 24 that is moved to the front of the input block 21 can be fixed. A process module can be placed above, below or outside the rotary table 23, and the process module is fixed to a fixed position and moved to a fixed position. can proceed. When the process for the hinge cylinder HC fixed to one fixing jig 24 is completed by a plurality of process modules arranged along the circumference of the rotary table 23, normal products and defective products are classified and the hinge cylinder HC ) can be completed. The process module for each process process is described below.

Figure 3 (a) shows an embodiment of the cap fixing module for fixing the cap (C) to the hinge cylinder (HC), Figure 3 (b) shows the internal parts of the hinge cylinder (HC) to which the cap is fixed And it shows an embodiment of a defect detection module for inspecting the fixed state of the cap. Referring to (a) of FIG. 3, the cap fixing module includes a fixing hand 32; Induction block 31 to which the fixed hand 32 is coupled; an operation block 34 that moves the induction block 31 up and down; elastic members 35a and 35b that move the operation block 34 up and down; and a transport tube 33 transporting a fastening pin for fixing the cap. When the cap C transported by the fixing hand 32 is coupled to the hinge cylinder HC, the fixing pin transported through the transport tube 33 can be coupled to the fastening hole formed at the corner of the cap C. . As a pair of elastic members 35a and 35b extending in a V shape as a whole move downward, the induction block 31 can move downward. Accordingly, the fixing pin may be coupled to the fastening hole formed in the cap (C) by the fastening tab. In this way, when the fixing pin is coupled to the fastening hole, the rotation table is rotated, and the hinge cylinder HC can be moved to a defect detection module for a defect detection process corresponding to the next process. Referring to (b) of FIG. 3, the defect detection module includes an insertion block 37 having a detection member inserted into the hinge cylinder HC at an end thereof extending in a vertical direction; a balance block 371 coupled to the upper portion of the insertion block 37; A horizontal block 372 coupled to the upper portion of the balance block 371 and extending in a horizontal direction; an induction cylinder 36 for inducing vertical movement of the insertion block 37; and actuating means 361 for actuating the induction cylinder 36. As the induction cylinder 36 moves up and down by the operation of the actuating means 361, the insertion block 37 moves up and down so that the detecting member can be inserted into the hinge cylinder HC or discharged to the outside again. . In this process, horizontal balancing members 38a and 38b extending in the vertical direction may be coupled to both sides of the horizontal block 372 to maintain the balance of the detection member, and contact the horizontal balancing members 38a and 38b. An elastic means for buffering the pressure may be coupled. The detecting member may flow into the inside of the hinge cylinder HC through the center hole formed in the center of the cap C to apply pressure, and in this state, parts disposed inside the hinge cylinder HC are aligned. If maintained, it can be judged to be assembled in a normal state. When such a defect detection process is completed, a fixing means such as a bolt may be coupled to a fixing hole formed in the cap C.

4 (a) shows a process of finally completing the hinge cylinder (HC) by fastening a fixing means such as a bolt to the cap (C) coupled to the hinge cylinder (HC), and FIG. 4 (b) shows an embodiment of a process of measuring the torque of the completed hinge cylinder HC.

Referring to (a) of FIG. 4, the bolt assembly module for coupling a fixing means such as a bolt to the cap C includes a clamp block 42 having a bolt grip for fixing the bolt to a lower portion; An induction block 43 coupled to the top of the clamp block 43 to induce vertical movement; and up and down elastic members 44a, 44b and 44c which move the induction block 43 up and down. When the upper and lower elastic members 44a, 44b, and 44c are moved downward by the operation of the operating means, the induction block 43 can be moved downward, and is transported through the bolt feed tube 41 to clamp block 42 The bolt fixed to can be stably fixed to the cap (C). The upper and lower elastic members 44a, 44b, and 44c may include a vertical elastic member 44c extending in the vertical direction and a pair of balanced elastic members 44a and 44c extending in a V shape with respect to the vertical elastic member 44c. And, by this structure, the bolt can be stably coupled to the cap (C). In the process of coupling the bolt to the cap (C), the coupling leg of the hinge cylinder protruding to the outside of the insertion groove (24b) can be fixed so that the cap (C) is stably fixed in a predetermined position. Specifically, the coupling leg may be fixed by a pair of hands H1 and H2 and a clamp body CB that moves the pair of hands H1 and H2 in opposite directions.

When the cap C is firmly coupled to the hinge cylinder HC, the hinge cylinder HC is completed, and a torque test may be performed on the hinge cylinder HC. The torque test (P15) may be performed by a torque module, which includes a measuring shaft member 46 extending in a vertical direction; A center block 452 having a hexahedral shape to which the upper end of the measuring member 46 is coupled; and a load block 451 to which the central block 452 is coupled to an upper portion; And it may include an operating means 45 for operating the load block 451. Torque of the hinge cylinder HC can be measured while a rotational moment is applied to the measuring shaft member 46 inserted into the center hole formed in the center of the cap by the operation of the operating means 45 . In this way, the rotating cylinder HC can be measured to determine whether or not it is defective, and a noise measurement test can be performed on a normal product.

FIG. 5(a) shows an embodiment of a noise measurement module, and FIG. 5(b) shows an embodiment of a defective product discharge module.

Referring to (a) of FIG. 5, the cap (C) coupled to the hinge cylinder (HC) may be formed on at least one fastening pin and a fixing bolt, and include a central hole in the central portion to which the rotational shaft can be coupled. do. As described above, the alignment of the internal parts can be checked using the center hole, and the torque can be measured. Also, for example, noise generated during opening and closing of a door may be measured using the center hole. To measure such noise, the noise measurement module includes a noise measurement block 51 having a noise axis inserted into the center hole; a noise induction block 52 for inducing rotation of the noise measurement block 51; and a noise meter 53 for measuring noise during rotation. When the silencer shaft is inserted into the center hole formed in the cap C, and the noise induction block 52 is rotated, noise may be generated by the relative rotation of the silencer shaft inserted into the center hole and the hinge cylinder HC. The generated noise can be measured by a noise meter, and whether or not it is defective can be determined according to the level of noise generation.

Referring to (b) of FIG. 5, the defective discharge module or discharge module includes a pair of hands 55a and 55b movable in opposite directions; a rotation block 56 capable of rotating in a predetermined direction while moving a pair of hands 55a and 55b in opposite directions; and a fixed block 57 rotatably coupled to the rotating block 56 . The upper part of the hinge cylinder HC can be held by a pair of hands 55a and 55b, and the rotation block 56 can be rotated by the fixed block 57. In addition, as the pair of hands 55a and 55b are moved in a direction away from each other, the hinge cylinder HC may be placed in the guide passage 58 . The induction passage 58 may be arranged to be inclined, whereby the hinge cylinder HC can be moved along the induction passage 58 and collected in an appropriate collecting means. The discharge module or defective discharge module may separate and discharge the inspected hinge cylinder HC from the fixing jig in various ways, and is not limited to the present embodiment.

6 illustrates an embodiment of a rotating hinge cylinder assembled in an assembly method or an assembly apparatus according to the present invention.

Referring to FIG. 6 , the hinge cylinder CH includes a hinge body 61 linearly extending in a box shape while having a square cross section; a cap coupling portion 611 formed above the hinge body 61; A rotating pin 612 coupled to protrude downward from the inside of the lower portion of the hinge body 61; A fastening portion 62 coupled to the lower portion of the hinge body 61; and a coupling leg 63 extending in a direction perpendicular to the extending direction of the hinge body 61 while integrally formed with the fastening portion 62 . The plurality of hinge cylinders CH_1 to CH_K may be separated from each other and moved to the assembly device along the conveyor 65, and the conveyor 65 may move along the guide 64. An embodiment of the hinge cylinder HC to which the cap C is coupled is shown in (b) of FIG. 6 . Hinge cylinders having various structures can be assembled and inspected by the method or apparatus according to the present invention, and the present invention is not limited by the structure of the hinge cylinder.

Although the present invention has been described in detail with reference to the presented embodiments above, those skilled in the art will be able to make various modifications and variations without departing from the technical spirit of the present invention with reference to the presented embodiments. . The present invention is not limited by these variations and modifications, but is limited only by the claims appended below.

21: input block 22a, 22b: operation switch
23: rotary table 24: fixed jig
24a: jig body 24b: insertion groove
61: cylinder body 62: coupling leg

Claims (5)

A step in which the rotating hinge cylinder is continuously input and fixed to a plurality of fixing jigs formed on the rotating table;
coupling the cap to the hinge cylinder fixed to the fixing jig;
Assembling a bolt for fixing the cap;
Inspecting the torque or noise of the rotating hinge cylinder to which the bolt is assembled; and
A method for automatically assembling a rotating hinge cylinder comprising the steps of discharging good products and defective products along different paths. The method of automatically assembling a rotary hinge cylinder according to claim 1, wherein the plurality of fixing jigs are arranged at regular intervals along the circumferential direction of the rotary table, and the rotary table becomes an index table. a rotatable disk-shaped rotary table 23;
A plurality of fixing jigs 24 disposed along the edge of the rotary table 23 and capable of fixing the hinge cylinder; and
Includes means for assembling or inspecting the hinge cylinder in each fixing jig 24,
Each of the plurality of fixing jigs 24 includes a cylindrical jig body 24a and an insertion groove 24b formed in the jig body 24a. The automatic assembling device of claim 3, wherein the means for assembling or inspecting includes a defect detection module, a bolt assembly module, a torque measurement module, and a noise measurement module. The method according to claim 3, wherein the rotating hinge cylinder includes a cylinder body 61 capable of accommodating parts therein; And a coupling leg 62 extending in a direction perpendicular to the cylinder body 61 from the lower portion of the cylinder body 61, and the cap 611 continuously supplied from one fixing jig 24 An automatic assembly device for a rotating hinge cylinder, characterized in that coupled to the top of the cylinder body (61).

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