A hinge assembly apparatus

Abstract

The application discloses a kind of hinge assembly equipment, comprising: rack, four-hole feeding position, torsional spring feeding position, oil cylinder feeding position, pouch U nail feeding position, nail insertion position and riveting position are equipped on rack;First carousel and second carousel, first carousel and second carousel are rotationally connected on rack, and first carousel and second carousel are spaced apart;The outer periphery of first carousel and second carousel is equipped with a plurality of interval positioning fixtures, and each positioning fixture is equipped with an avoidance passage;Transfer handling mechanism, transfer handling mechanism is located on rack, and is located between first carousel and second carousel;Nail insertion position has multiple, multiple nail insertion position is correspondingly arranged with first carousel and second carousel, and riveting position is correspondingly arranged with at least second carousel;Four-hole feeding position, torsional spring feeding position, part of nail insertion position, oil cylinder feeding position are arranged along the rotation track of first carousel;Pouch U nail feeding position, another part of nail insertion position, riveting position are arranged along the rotation track of second carousel.

Description

Technical Field

[0001] This invention relates to the field of hinge assembly equipment, and more particularly to a hinge assembly equipment. Background Technology

[0002] Hinges have many parts, and each part needs to be assembled at a corresponding station during hinge assembly; that is, each part has a dedicated assembly station. In existing hinge assembly equipment, all assembly stations are integrated into the outer periphery of a single turntable. This layout has the following drawbacks: Firstly, due to the large number of assembly stations, the turntable must be enlarged to increase the installation space at the outer periphery. However, increasing the installation space at the outer periphery requires the turntable diameter to be multiplied, resulting in an increase in the overall machine size and a large footprint. Secondly, when maintenance is required at one assembly station, the entire turntable needs to be stopped, preventing assembly at other stations and reducing assembly efficiency. Summary of the Invention

[0003] This invention provides a hinge assembly device. The device adopts a double turntable layout. The four-hole feeding position, the torsion spring feeding position, part of the pin insertion position, and the hydraulic cylinder feeding position are arranged along the rotation trajectory of the first turntable. The pocket U-pin feeding position, another part of the pin insertion position, and the riveting position are arranged along the rotation trajectory of the second turntable.

[0004] The technical solution adopted by this invention to solve its problem is: A hinge assembly device, comprising: The frame is provided with a four-hole feeding position, a torsion spring feeding position, a hydraulic cylinder feeding position, a U-shaped feeding position, a pin insertion position, and a riveting position. A first turntable and a second turntable are rotatably connected to the frame, and the first turntable and the second turntable are spaced apart; the outer periphery of the first turntable and the second turntable are provided with a plurality of spaced positioning fixtures, and each positioning fixture is provided with a clearance channel; A transfer and handling mechanism is mounted on the frame and located between the first turntable and the second turntable; The device includes multiple pin insertion positions, each corresponding to both the first and second turntables. The riveting position corresponds to at least the second turntable. The four-hole feeding position, the torsion spring feeding position, some of the pin insertion positions, and the hydraulic cylinder feeding position are arranged along the rotation trajectory of the first turntable. The pocket U-nail feeding position, another portion of the pin insertion positions, and the riveting position are arranged along the rotation trajectory of the second turntable.

[0005] In some alternative embodiments, the hinge assembly equipment further includes a pin-insertion mechanism, a pin-guiding mechanism, and a riveting mechanism, wherein the pin-insertion mechanism is located at the pin-insertion position, the pin-guiding mechanism is located on the frame at a position opposite to the pin-insertion mechanism, and the riveting mechanism is located at the riveting position; The rivet insertion mechanism includes a rivet ejector seat, a rivet pusher, and a rivet pusher drive. The rivet ejector seat has a rivet ejection channel, which is opposite to one side of the clearance channel. One end of the rivet pusher is movably disposed in the rivet ejection channel, and the rivet pusher drive is connected to the other end of the rivet pusher. The rivet pusher drive is used to push the rivet in the rivet ejection channel to perform the rivet insertion operation. The needle guide mechanism includes a needle guide seat, a needle guide, and a needle guide drive. The needle guide seat is mounted on the frame, and the needle guide is movably mounted on the needle guide seat. The needle guide is positioned opposite to the other side of the clearance channel. The needle guide drive is used to drive the needle guide to move closer to or further away from the clearance channel during the nail insertion operation. The riveting mechanism is used to rivet the rivets of the hinges on the positioning fixture; The pin-piercing mechanism and the riveting mechanism are arranged sequentially along the rotation direction of the corresponding turntable.

[0006] In some alternative embodiments, the four-hole loading positions and the torsion spring loading positions form a four-hole torsion spring mounting position in the same area on the frame; The hinge assembly equipment also includes a four-hole torsion spring feeding mechanism, which is located at the four-hole torsion spring mounting position. The four-hole torsion spring feeding mechanism includes a material distribution seat, a torsion spring pusher, a torsion spring drive, and a first conveying assembly. The material distribution seat has four feeding positions, a torsion spring feeding position, and a connecting straight groove. The four feeding positions have four feeding ports, and the torsion spring feeding position has a torsion spring feeding port. The two ends of the connecting straight groove are respectively connected to the four feeding positions and the torsion spring feeding position. The torsion spring pusher is slidably disposed on the material distribution seat and is opposite to the connecting straight groove. The other end of the torsion spring pusher is connected to the torsion spring drive. The torsion spring drive is used to drive the torsion spring pusher to move closer to or away from the connecting straight groove. The first conveying component is used to convey the four holes with torsion springs installed on the four-hole loading position to the positioning fixture.

[0007] In some optional embodiments, the material distribution seat includes a material distribution seat body and a four-hole material distribution block; the material distribution seat body is provided with a first sliding groove, a torsion spring feeding position, a connecting straight groove, a four-hole feeding port and a torsion spring feeding port, and the four-hole feeding port is lower than the discharge end of the connecting straight groove; The first chute vertically penetrates the main body of the material distribution seat, and the first chute is connected to the connecting straight groove; the four-hole material distribution block is slidably connected to the first chute, and the top of the four-hole material distribution block is provided with the four-hole feeding position.

[0008] In some optional embodiments, the four-hole torsion spring feeding mechanism further includes a torsion spring adjustment assembly, which includes an adjustment member and an adjustment drive member. One end of the adjustment member is a pushing part, and the other end of the adjustment member is connected to the adjustment drive member. The adjustment drive member is used to drive the adjustment member to move so that the pushing part can push one leg of the torsion spring to flatly adhere to the four holes.

[0009] In some alternative embodiments, the needle insertion mechanism is located on the side of the four-hole torsion spring feeding mechanism near the first turntable.

[0010] In some alternative embodiments, the hinge assembly equipment further includes a pocket U-nail feeding mechanism, which is located at the pocket U-nail feeding position; The pocket U-nail feeding mechanism includes a mounting base, a feeding component, a pocket feeding component, a U-nail feeding component, and a U-nail mounting component; The feeding assembly includes a pocket clamping mold and a pocket mold driving component; the pocket clamping mold is movably mounted on the mounting base, and has a feeding position and a mounting position. The pocket clamping mold is provided with a receiving groove, a clamping component, a pocket feeding port, and a U-nail storage groove. The receiving groove is located at the bottom of the pocket clamping mold, the clamping component is located on the inner side wall of the receiving groove, the pocket feeding port is located on the first side of the pocket clamping mold and communicates with the receiving groove, one end of the U-nail storage groove is connected to the receiving groove, and the other end of the U-nail storage groove passes through the second side of the pocket clamping mold; the pocket mold driving component is used to drive the pocket clamping mold to move closer to or further away from the positioning fixture. At the feeding position, the pocket feeding assembly is connected to the pocket feeding port, and the U-nail feeding assembly is connected to the U-nail storage slot; The U-nail mounting assembly is used to mount the U-nail in the U-nail storage slot onto the hinge at the mounting position.

[0011] In some optional embodiments, the pocket clamping mold includes a clamping mold body and a U-nail insert. The clamping mold body is provided with the receiving groove and the pocket inlet. The U-nail insert is detachably connected to the clamping mold body and is provided with the U-nail storage groove.

[0012] In some optional embodiments, the pocket clamping mold is provided with an installation groove and an elastic element. The installation groove is connected to the receiving groove. The clamping element is slidably disposed in the installation groove. The two ends of the elastic element respectively abut against the inner wall of the clamping element and the installation groove.

[0013] In some optional embodiments, the pocket U-nail feeding mechanism further includes a top feeding assembly, which includes a top feeding member and a top feeding drive member. The top feeding assembly is disposed on the mounting base, one end of the top feeding member is connected to the top feeding drive member, and the other end of the top feeding member passes through the pocket clamping mold to the receiving groove.

[0014] In summary, the hinge assembly equipment provided by this invention has the following technical effects: The four-hole loading position, torsion spring loading position, part of the pin insertion position, and hydraulic cylinder loading position are arranged along the rotation trajectory of the first turntable. The U-shaped pin loading position, another part of the pin insertion position, and riveting position are arranged along the rotation trajectory of the second turntable. This dual-turntable layout distributes all assembly stations. Compared to the traditional layout using a single turntable, both turntables can use small-diameter specifications to meet the installation and operation requirements of their respective stations, reducing the equipment footprint and improving the utilization rate of production space.

[0015] When the assembly mechanism of any assembly station on one of the turntables malfunctions, requires maintenance or replacement of parts, only the operation of the corresponding turntable needs to be stopped. The other turntable can continue to rotate and perform assembly operations without the need to shut down the entire machine. This improves the continuous production capacity of the equipment and increases the overall assembly capacity and production efficiency of the hinge. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the hinge to be assembled according to an embodiment of the present invention; Figure 2 This is an exploded view of the hinge to be assembled according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the hinge assembly equipment according to an embodiment of the present invention; Figure 4 This is a schematic diagram of a four-hole torsion spring feeding mechanism. Figure 5 This is a partial structural diagram of a four-hole torsion spring feeding mechanism. Figure 6 Exploded view of a four-hole torsion spring feeding mechanism; Figure 7 This is a schematic diagram of the material distribution seat. Figure 8 A schematic diagram of the pin insertion mechanism and the needle guide mechanism; Figure 9 This is a structural diagram of the transfer and handling mechanism; Figure 10 A schematic diagram of the U-nail feeding mechanism for the pocket; Figure 11 A structural schematic diagram of the U-nail feeding mechanism for the pocket; Figure 12 A structural diagram of part of the U-nail feeding mechanism for the pocket; Figure 13 This is a schematic diagram of the structure of the pocket clamping mold; Figure 14 An exploded view of the pocket clamping mold; Figure 15 This is a schematic diagram of the compression spring mechanism; Figure 16 This is an exploded view of the compression spring mechanism.

[0018] The meanings of the reference numerals in the attached figures are as follows: a. Arm body; b. Fixed base; c. Four holes; d. Torsion spring; e. One-pin hole; f. Hydraulic cylinder; g. Connector; h. Laminated plate; i. Two-pin hole; j. Three-pin hole; k. Four-pin hole; l. Pocket; m. U-shaped nail; 101. Frame; 102. First turntable; 103. Second turntable; 104. Positioning fixture; 10. Transfer and handling mechanism; 11. First mounting frame; 12. First rotating component; 13. First vertical moving component; 14. Third gripper; 15. Material unloading channel; 20. Nail insertion mechanism; 21. First fixing plate; 22. Nail ejector seat; 23. Nail pusher; 24. Nail pusher drive; 30. Riveting mechanism; 40. Needle insertion mechanism; 41. Needle insertion seat; 411. Second fixing plate; 412. First connecting plate; 42. Needle; 43. Needle insertion drive component; 50. Four-hole torsion spring feeding mechanism; 51. Material distribution seat; 511. Four-hole feeding position; 512. Four-hole feed inlet; 513. Torsion spring feeding position; 514. Torsion spring feed inlet; 515. Connecting straight groove; 516. Material distribution seat body; 517. First slide groove; 518. Four-hole material distribution block; 519. Sliding hole; 52. Torsion spring pusher; 53. Torsion spring drive; 54. First conveying assembly; 55. Torsion spring adjustment assembly; 551. Adjusting component; 552. Adjustment drive; 56. Four-hole feeding channel; 57. Torsion spring feeding channel; 58. Torsion spring pressure block; 59. Torsion spring stop block; 60. U-nail feeding mechanism for pockets; 61. Mounting base; 62. Feeding assembly; 621. Pocket clamping mold; 6211. Receiving groove; 6212. Pocket inlet; 6213. U-nail storage groove; 6214. Clamping mold body; 6215. Mounting slide; 6216. Connecting groove; 622. Clamping component; 623. Pocket mold driving component; 6231. Telescopic cylinder; 6232. First sliding component; 624. U-nail insert; 625. Elastic component; 626. End cap; 627. Guide pin insert; 63. Pocket feeding assembly; 631. Pocket feeding channel; 632. Pocket separating component; 633. Pocket pushing component; 641. U-nail feeding channel; 642. U-nail separating seat; 643. First push rod; 644. First driving component; 651. Second push rod; 652. Second driving component; 661. Ejector component; 662. Ejector driving component; 671. Clamping pin; 672. Clamping pin driving component; 681. U-nail guide pin; 682. Guide pin driving component; 691. First pressing component; 692. Pressing drive assembly; 70. First semi-finished product feeding mechanism; 71. Conveyor belt; 72. Second handling assembly; 80. Second semi-finished product feeding mechanism; 90. Compression spring mechanism; 91. Second mounting bracket; 92. Second sliding member; 93. Second pressing member; 94. Third driving member; 95. Third sliding member; 96. Compression spring member; 97. Fourth driving member; 100. U-nail clamping mechanism; 110. Feeding mechanism. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the invention and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation.

[0021] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain situations to indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0022] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0023] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0024] The technical solution of the present invention will be further described below with reference to the embodiments and accompanying drawings.

[0025] Example 1 To clearly illustrate this solution, this embodiment provides an example of a hinge assembly method. See [link / reference]. Figures 1-2The hinge includes an arm body (a), a fixed base (b), four holes (c), a torsion spring (d), a single-pin hole (e), a hydraulic cylinder (f), a connector (g), a laminate (h), two-pin holes (i), three-pin holes (j), four-pin holes (k), a pocket (l), and a U-pin (m). The arm body (a) and fixed base (b) are the first semi-finished product already assembled, while the hydraulic cylinder (f), connector (g), and laminate (h) are the second semi-finished product already assembled. During assembly, firstly, assemble the four-hole C and torsion spring D to the arm body A, then connect the four-hole C, torsion spring D, and arm body A through a rivet at the first rivet hole E, and finally rivet the rivet to fix it; secondly, install the second semi-finished product onto the arm body A and the four-hole, then connect the arm body A and the connecting piece G through a rivet at the third rivet hole J, and finally rivet the rivet to fix it; thirdly, connect the arm body A and the hydraulic cylinder F through a rivet at the four-hole hole K; fourthly, install the pocket L onto the four-hole C, then connect the pocket L and the four-hole C through one pin of the U-pin M, and at the same time connect the other pin of the U-pin M to the lamination H; fifthly, rivet the rivet on the four-hole hole K; sixthly, connect the arm body A and the lamination H through a rivet at the second rivet hole i, and rivet the rivet to fix it.

[0026] A hinge assembly device, see Figure 3 It includes a frame 101, a first turntable 102, a second turntable 103, and a transfer and handling mechanism 10.

[0027] The frame 101 is equipped with four loading positions, a torsion spring loading position, a hydraulic cylinder loading position, a U-shaped rivet loading position, a rivet insertion position, and a riveting position. Each of these positions is used to install the corresponding assembly mechanism. The first turntable 102 and the second turntable 103 are both rotatably connected to the frame 101, and the first turntable 102 and the second turntable 103 are spaced apart. The outer periphery of the first turntable 102 and the second turntable 103 are equipped with multiple spaced positioning fixtures 104. The positioning fixtures 104 are used to position the hinge parts to be assembled. Each positioning fixture 104 is equipped with a clearance channel, which can avoid the rivet hinge holes on the hinge, so that the rivet insertion can be performed through the clearance channel.

[0028] The transfer and handling mechanism 10 is mounted on the frame 101 and located between the first turntable 102 and the second turntable 103. It can transfer the hinge that is not fully assembled on the first turntable 102 to the positioning fixture 104 on the second turntable 103.

[0029] There are multiple pin insertion positions, which are corresponding to the first turntable 102 and the second turntable 103. That is, pin insertion positions are provided on the frame 101 at positions corresponding to the first turntable 102 and the second turntable 103. At least one riveting position is provided on the frame 101 at a position corresponding to the second turntable 103. The four-hole feeding position, the torsion spring feeding position, some pin insertion positions, and the hydraulic cylinder feeding position are arranged along the rotation trajectory of the first turntable 102; the pocket U-nail feeding position, another part of the pin insertion positions, and the riveting position are arranged along the rotation trajectory of the second turntable 103. The turntables can drive the positioning fixture 104 to rotate to the corresponding assembly station for assembly.

[0030] During assembly, the first turntable 102 and the second turntable 103 rotate, causing the positioning fixture 104 on the turntable to rotate to the corresponding assembly station for assembly. After the positioning fixture 104 on the first turntable 102 completes the processing at the corresponding station, the transfer and conveying mechanism 10 transports the hinge on the positioning fixture 104 to the second turntable 103 for assembly.

[0031] The hinge assembly equipment described above arranges the four-hole feeding position, torsion spring feeding position, some pin insertion positions, and hydraulic cylinder feeding position along the rotation trajectory of the first turntable 102. The U-pin feeding position, some pin insertion positions, and riveting positions are arranged along the rotation trajectory of the second turntable 103. This dual-turntable layout distributes all assembly stations. Compared to the traditional layout using a single turntable, both turntables can use small-diameter specifications to meet the installation and operation requirements of their respective stations, reducing the equipment's footprint and improving the utilization rate of production space.

[0032] In addition, when the assembly mechanism of any assembly station on one of the turntables malfunctions, requires maintenance or replacement of parts, only the operation of the corresponding turntable needs to be stopped. The other turntable can continue to rotate and perform assembly operations without the need to shut down the entire machine. This improves the continuous production capacity of the equipment and increases the overall assembly capacity and production efficiency of the hinge.

[0033] In some alternative embodiments, the turntable is an annular turntable, and a plurality of positioning fixtures 104 are spaced circumferentially on the annular turntable. The inner region of the inner ring of the annular turntable is a fixed disk, which is the structure on the frame 101 for mounting the assembly mechanism; the outer region on the frame 101 located on the outer ring of the annular turntable is also the region for mounting the assembly mechanism.

[0034] In some alternative implementations, the number of positioning fixtures 104 on each turntable is the same as the number of assembly stations corresponding to that turntable, so that all assembly stations can be processed simultaneously. The positioning fixtures 104 are provided with positioning grooves, through which the assembled parts are positioned.

[0035] In some alternative implementations, see [link to implementation details]. Figure 2 The hinge assembly equipment includes a first semi-finished product feeding mechanism 70, which includes a conveyor belt 71 and a second handling component 72. The first semi-finished product is fed by the conveyor belt 71. When it moves to the designated position, the second handling component 72 handles the first semi-finished product to the positioning fixture 104 on the first turntable 102.

[0036] The first conveying mechanism can be an existing conveying mechanism, such as a moving module formed by a guide rail slider structure that can move radially and vertically along the first turntable 102, and a first gripper provided on the moving module. The first gripper moves above the conveyor belt 71 to clamp the first semi-finished product and transports the first semi-finished product to the positioning fixture 104 on the first turntable 102.

[0037] In some alternative embodiments, the four-hole loading position and the torsion spring loading position form a four-hole torsion spring mounting position in the same area on the frame 101. See also Figure 3 The hinge assembly equipment also includes a four-hole torsion spring feeding mechanism 50, which is located at the four-hole torsion spring mounting position.

[0038] See Figures 4-7 The four-hole torsion spring feeding mechanism 50 includes a distribution seat 51, a torsion spring pusher 52, a torsion spring drive 53, and a first conveying assembly 54. The distribution seat 51 has a four-hole feeding position 511, a torsion spring feeding position 513, and a connecting straight groove 515. The four-hole feeding position 511 has a four-hole inlet 512, and the torsion spring feeding position 513 has a torsion spring inlet 514. The two ends of the connecting straight groove 515 are respectively connected to the four-hole feeding position 511 and the torsion spring feeding position 513. The torsion spring pusher 52 is slidably disposed on the distribution seat 51, and is positioned opposite to the connecting straight groove 515. The other end of the torsion spring pusher 52 is connected to the torsion spring drive 53; the torsion spring drive 53 is used to drive the torsion spring pusher 52 to move closer to or further away from the connecting straight groove 515. The first conveying assembly 54 is used to convey the four-hole feeders with torsion springs installed on the four-hole feeding position 511 to the positioning fixture 104.

[0039] When the four-hole C is fed from the four-hole feed port 512 to the four-hole loading position 511, and the torsion spring D is fed from the torsion spring feed port 514 to the torsion spring loading position 513, the torsion spring drive 53 drives the torsion spring pusher 52 to move towards the four-hole loading position 511 and the connecting straight groove 515. Thus, the torsion spring pusher 52 pushes the torsion spring D towards the connecting straight groove 515, and then pushes it onto the four-hole C on the four-hole loading position 511, thereby placing the torsion spring D onto the four-hole C. After the torsion spring D is pushed onto the four-hole C, the torsion spring drive 53 drives the torsion spring pusher 52 to move to the initial position, and the first conveying assembly 54 conveys the four-hole C with the torsion spring D installed on the four-hole loading position 511 to the positioning fixture 104 for the next step of riveting.

[0040] In related technologies, the four-hole C and torsion spring D are loaded independently at two different workstations, requiring separate loading stations for the four-hole C and torsion spring D. In contrast, this solution assembles and loads the four-hole C and torsion spring D at the same workstation, occupying only one workstation, reducing the number of workstations and thus the equipment's footprint. Furthermore, loading the four-hole C and torsion spring D only requires moving the parts to the positioning fixture 104, resulting in a short operation time. This solution achieves loading of the four-hole C and torsion spring D at a single workstation, making the overall operation time compatible with other more complex workstations. Therefore, the loading station for the four-hole C and torsion spring D is optimized from two workstations to one, reducing the operation time of one loading station, thus reducing hinge assembly time and improving assembly efficiency.

[0041] Since the connecting straight groove 515 is connected to the torsion spring feeding position 513, and the torsion spring pusher 52 is positioned opposite to the connecting straight groove 515, when the torsion spring pusher 52 extends into the torsion spring feeding position 513, the torsion spring d being fed into the torsion spring feeding position 513 is blocked by the torsion spring pusher 52. Thus, during the process of installing the torsion spring d into the four holes c, the torsion spring d cannot be fed temporarily. When the torsion spring d is installed into the four holes c and the torsion spring pusher 52 moves to the initial position, the torsion spring pusher 52 no longer blocks the feeding of the torsion spring d. At this time, the torsion spring d can be fed into the torsion spring feeding position 513, realizing the one-by-one and stable feeding of the torsion spring d.

[0042] It should be noted that the aforementioned four-hole loading position 511 is a contour design based on the placement position of the four holes c on the positioning fixture 104. Thus, after the first conveying component 54 conveys the four holes c onto the positioning fixture 104, the four holes c can be directly placed on the positioning fixture 104. The torsion spring loading position 513 is a contour design based on the main structure of the middle part of the torsion spring d, so that the torsion spring d can be loaded onto the torsion spring loading position 513.

[0043] In some alternative implementations, see [link to implementation details]. Figures 5-6 The material distribution seat 51 includes a material distribution seat body 516 and a four-hole material distribution block 518. The material distribution seat body 516 is provided with a first sliding groove 517, as well as the aforementioned torsion spring feeding position 513, a connecting straight groove 515, a four-hole feeding port 512, and a torsion spring feeding port 514. The four-hole feeding port 512 is lower than the discharge end of the connecting straight groove 515, that is, the feeding position of the four-hole c is lower than the assembly position of the four-hole c and the torsion spring d. The first sliding groove 517 vertically penetrates the material distribution seat body 516 and is connected to the connecting straight groove 515. The four-hole material distribution block 518 is slidably connected to the first sliding groove 517, and the top of the four-hole material distribution block 518 is provided with the aforementioned four-hole feeding position 511.

[0044] When feeding four holes c, the four-hole distribution block 518 moves downward, so that the four-hole feeding position 511 and the four-hole inlet 512 are at the same horizontal height. After the four holes c are fed to the four-hole feeding position 511, the four-hole distribution block 518 moves upward. At this time, the four holes c can no longer feed to the four-hole feeding position 511, thus realizing the feeding of four holes c one by one. When the four-hole distribution block 518 moves to the point where the four-hole feeding position 511 is opposite to the discharge end of the connecting straight groove 515, the torsion spring d can push the torsion spring d onto the four holes c, realizing the assembly of the four holes c and the torsion spring d. After the assembly is completed, the four-hole distribution component can continue to move upward so that the first conveying component 54 can feed the four holes c and the torsion spring d onto the positioning fixture 104. After the feeding is completed, the four-hole distribution component moves downward to the initial position.

[0045] The material distribution seat 51 is configured as a material distribution seat body 516 and a four-hole material distribution block 518. The four-hole material distribution block 518 is slidably disposed on the material distribution seat body 516. This slidably disposed four-hole material distribution block 518, on the one hand, utilizes its vertically movable function. After material is fed from four-hole c to the four-hole feeding position 511, the four-hole material distribution block 518 moves upward. At this time, the four-hole feeding position 511 is moved upward, and four-hole c can no longer continue to be fed, thereby realizing the sequential feeding of material to the four-hole feeding position 511. High stability; on the other hand, during the process of installing the torsion spring d into the four-hole c, in order to ensure smooth installation of the torsion spring d into the four-hole c, the height of the four-hole c can be adjusted, for example, making the four-hole c slightly lower than the connecting straight groove, so that the torsion spring d can be smoothly installed into the four-hole c, improving the smoothness of the assembly and greatly alleviating the problem that the torsion spring d jumps, shifts, or even flips at the junction between the connecting straight groove and the four-hole c because the feed end of the four-hole c is higher than the discharge end of the connecting straight groove, leading to assembly failure. In addition, when the first conveying component 54 clamps the four-hole c with the torsion spring d installed, the four-hole dividing block 518 can move upward to a certain height, which facilitates the first conveying component 54 to clamp the four-hole c and greatly reduces the problem of interference between the gripper and other structures.

[0046] In some alternative implementations, see [link to implementation details]. Figures 4-6 The four-hole torsion spring feeding mechanism 50 also includes a torsion spring adjustment assembly 55. The torsion spring adjustment assembly 55 includes an adjustment member 551 and an adjustment drive member 552. One end of the adjustment member 551 is a pusher, and the other end of the adjustment member 551 is connected to the adjustment drive member 552. The adjustment drive member 552 is used to drive the adjustment member 551 to move so that the pusher can push one of the legs of the torsion spring d to lie flat against the four holes c.

[0047] After the torsion spring d is installed on the four-hole c, the torsion spring pusher 52 does not move in the opposite direction initially, but instead holds the torsion spring d against it. Next, the adjusting drive 552 drives the adjusting member 551 to move, causing the pushing part of the adjusting member 551 to push the torsion spring d closer to the support leg of the four-hole c, allowing the torsion spring d to rotate until its support leg is flat against the four-hole c, and the torsion spring d can lie horizontally on the four-hole c. After this operation is completed, the adjusting drive 552 moves the adjusting member 551 to its initial position, and the torsion spring pusher 52 also moves to its initial position.

[0048] By adjusting component 551, the support leg of torsion spring d is pushed, causing torsion spring d to lie flat on the four holes c. This ensures that torsion spring d is stably placed on the four holes c, greatly reducing the phenomenon of torsion spring d rolling off the four holes c during the loading process to the positioning fixture 104, thus improving the stability and reliability of the loading process. In addition, when adjusting component 551 pushes the support leg of torsion spring d to lie flat on the four holes c, it also pushes the four holes c simultaneously, so that the four holes c can be accurately placed on the four-hole loading position 511. In this way, the four holes c have high positional accuracy on the four-hole loading position 511. When the four holes c are transported to the positioning fixture 104, the intersection hole position between the four holes c and the arm body a can be accurately aligned, which facilitates the subsequent riveting operation. Furthermore, by pushing one leg of the torsion spring d to lie flat against the four holes c, during the subsequent assembly of the pocket 1 and the insertion of the U-nail m, it can be ensured that one leg of the torsion spring d is restricted between the U-nail m and the pocket 1. In this way, there is no need to adjust the torsion spring d when assembling the pocket 1 and inserting the U-nail m, which facilitates the assembly of the pocket 1.

[0049] In some alternative implementations, see [link to implementation details]. Figure 6 The torsion spring pusher 52 is a rod-shaped structure, which is positioned opposite to the torsion spring loading position 513 and the connecting straight groove 515. The material distribution seat 51 is provided with a sliding hole 519, which passes through the material distribution seat 51 and connects to the torsion spring loading position 513. The end of the torsion spring pusher 52 is slidably disposed in the sliding hole 519. The torsion spring drive 53 can be a telescopic cylinder, such as a pneumatic cylinder or a hydraulic cylinder, which can drive the torsion spring pusher 52, so that the end of the torsion spring pusher 52 extends into the torsion spring loading position 513 and the connecting straight groove 515, or moves in the opposite direction into the sliding groove.

[0050] In some alternative implementations, see [link to implementation details]. Figures 5-6 The main body 516 of the material distribution seat is provided with a torsion spring pressure block 58, which covers the connecting straight groove. The torsion spring pressure block 58 is provided with a guide groove that cooperates with one pin of the torsion spring d. During the process of pushing the torsion spring d to the four holes c, the pin of the torsion spring d moves along the guide groove, so that the torsion spring d can move smoothly and accurately to the designated position on the four holes c.

[0051] In some alternative implementations, see [link to implementation details]. Figures 5-6The main body 516 of the material distribution seat is equipped with a torsion spring stop 59, which is rotatably connected to the main body 516 and is staggered from the torsion spring pusher 52 in the feeding direction of the torsion spring d, and is positioned opposite to the torsion spring feeding position 513. The torsion spring stop 59 has a limiting groove located at the torsion spring feeding position 513. When the torsion spring d is fed to the torsion spring feeding position 513, it is located within the limiting groove, thus preventing the torsion spring d from rolling down into the connecting straight groove 515 without being pushed by the torsion spring pusher 52, which would affect the installation of the torsion spring d into the four holes c. When the torsion spring pusher 52 pushes the torsion spring d, the torsion spring d acts on the torsion spring stop 59, causing the torsion spring stop 59 to rotate and lift, allowing the torsion spring d to move further into the connecting straight groove 515.

[0052] In some optional embodiments, the four-hole torsion spring feeding mechanism 50 also includes a four-hole feeding channel 56 and a torsion spring feeding channel 57. Both the four-hole feeding channel 56 and the torsion spring feeding channel 57 provide the corresponding parts through a vibratory feeder. This feeding method is a conventional feeding method and will not be described in detail here.

[0053] In some alternative embodiments, the first transport assembly 54 also employs existing transport assemblies, such as a movable module that can move radially and vertically along the first turntable 102, and a second gripper provided on the movable module, through which the four holes c and the torsion spring d are transported to the positioning fixture 104 on the first turntable 102.

[0054] In some alternative implementations, see [link to implementation details]. Figure 8 The hinge assembly equipment also includes a pin-insertion mechanism 20, a pin-guiding mechanism 40, and a riveting mechanism 30. The pin-insertion mechanism 20 is located at the pin-insertion position, the pin-guiding mechanism 40 is located on the frame 101 opposite to the pin-insertion mechanism 20, and the riveting mechanism 30 is located at the riveting position. Regarding the pin-insertion mechanism 20 and the pin-guiding mechanism 40, specifically: The rivet insertion mechanism 20 includes a rivet ejector seat 22, a rivet pusher 23, and a rivet pusher drive 24. The rivet ejector seat 22 has a rivet ejection channel, which is arranged opposite to one side of the clearance channel. One end of the rivet pusher 23 is movably disposed in the rivet ejection channel, and the rivet pusher drive 24 is connected to the other end of the rivet pusher 23. The rivet pusher drive 24 is used to push the rivet in the rivet ejection channel for rivet insertion.

[0055] The needle insertion mechanism 40 includes a needle holder 41, a needle 42, and a needle drive 43. The needle holder 41 is mounted on the frame 101, and the needle 42 is movably mounted on the needle holder 41. The needle 42 is positioned opposite to the other side of the clearance channel. The needle drive 43 is used to drive the needle 42 to move closer to or further away from the clearance channel during the needle insertion operation.

[0056] The riveting mechanism 30 is used to rivet the rivets on the hinges of the positioning fixture 104. The rivet insertion mechanism 20 and the riveting mechanism 30 are arranged sequentially along the rotation direction of the corresponding turntables.

[0057] After the four holes c and the torsion spring d are fed, the needle drive 43 drives the needle 42 to move towards the clearance channel corresponding to the rivet hole e, allowing the needle 42 to pass through the rivet hole. During the movement of the needle 42, the pusher drive 24 drives the pusher 23 to move, and the pusher 23 pushes the rivet outward. When the rivet is pushed to the exit position of the rivet exit channel, the needle 42 moves to contact the end of the rivet, so that one end of the rivet is abutted by the pusher 23 and the other end is abutted by the needle 42. Then, under the action of the corresponding drive, the pusher 23 and the needle 42 drive the rivet to move towards the rivet hole e, so that the rivet passes through the rivet hole e. After the rivet is passed through, the pusher 23 and the needle 42 move back to the initial position under the action of the corresponding drive. Then the first turntable 102 rotates, which moves the positioning fixture 104 with the rivet in the rivet hole e to the position corresponding to the riveting mechanism 30, and the rivet in the rivet hole e is riveted by the riveting mechanism 30.

[0058] In related technologies, the pin guide mechanism 40 is located on the positioning fixture 104 and on one side of the positioning fixture 104. This design causes the pin guide 42 to form an obstruction on one side of the rivet, interfering with the riveting of the riveting mechanism 30. Therefore, in related technologies, after the rivets are passed through all the rivet holes, the hinge is moved to a fixture without the pin guide 42. This increases the operation of changing the positioning fixture 104 of the hinge and the need for handling, reducing assembly efficiency.

[0059] In this design, the pin-guiding mechanism 40 is set independently of the positioning fixture 104. Thus, after the pin-guiding mechanism 40 and the rivet-passing mechanism 20 pass through the rivet, the pin 42 moves to the rivet-passing channel away from the positioning fixture 104 under the action of its driving component. The pin 42 no longer moves with the positioning fixture 104 to the next station. Therefore, the riveting mechanism 30 can directly perform the riveting operation after passing through the rivet, saving the step of "transferring the hinge to the positioning fixture 104 which does not have the pin 42", which is beneficial to improving the hinge assembly efficiency.

[0060] In addition, riveting and fixing can be done directly after the rivets are threaded through, which avoids the problem of rivets falling off in subsequent assembly stations and during the handling and replacement of the hinge positioning fixture 104, compared to "threading all the rivets through and then riveting them all at once".

[0061] It should be noted that the rivet ejection seat 22 includes a straight channel and an inclined channel connected to the straight channel. After being screened by a vibratory feeder, the rivets are blown into the inclined channel through an air pipe and then enter the straight channel. The rivet pusher 23 is a rod-shaped structure, with its end sliding through the straight channel. After the rivet enters the straight channel, the rivet pusher 23, under the action of the rivet pusher drive 24, pushes the rivet out of the straight channel. This rivet ejection seat 22 adopts an existing structure, and the rivet pusher drive 24 can be an existing drive component such as a cylinder, hydraulic cylinder f, or linear motor. The riveting mechanism 30 also adopts an existing structure, and the specific structure will not be described in detail.

[0062] Regarding the pin-piercing mechanism 20, for details, please refer to... Figure 8 The rivet insertion mechanism 20 also includes a first fixed plate 21, a rivet pusher 24 fixed to the first fixed plate 21, and a rivet ejector 22 slidably disposed on the first fixed plate 21. During the rivet insertion process, the rivet ejector 22 moves towards the positioning fixture 104, so that the exit end of the rivet ejector channel can be close to the rivet hole e. After the rivet moves out of the rivet ejector channel, it can directly enter the rivet hole e, greatly reducing the problem of the rivet easily falling off due to the large gap between the rivet ejector channel and the rivet hole e. After the rivet insertion is completed, the rivet ejector 22 moves back to the initial position to avoid interference with the positioning fixture 104.

[0063] Regarding the needle insertion mechanism 40, for details, please refer to... Figure 8 The needle holder 41 also includes a second fixing plate 411 and a first connecting plate 412. The second fixing plate 411 is fixedly disposed, and the needle driving member 43 is fixed on the second fixing plate 411. The first connecting plate 412 is slidably disposed on the second fixing plate 411 along the arrangement direction of the nail hole position e, and the needle 42 is fixed on the first connecting plate 412. During the nail insertion process, the needle driving member 43 drives the first connecting plate 412 to move, and the first connecting plate 412 drives the needle 42 to move closer to or away from the nail hole position e.

[0064] In some alternative implementations, see [link to implementation details]. Figure 3 The pin-threading mechanism 20 is located on the frame 101 inside the annular turntable, and the pin-guiding mechanism 40 is positioned between the four-hole torsion spring feeding mechanism 50 and the annular turntable. Thus, after the four holes (c) and torsion springs (d) are fed to the positioning fixture 104, the pin-threading operation can be performed directly. By arranging the pin-guiding mechanism 40 between the four-hole torsion spring feeding mechanism 50 and the annular turntable, a station is not required along the circumference of the annular turntable, resulting in a compact layout.

[0065] After the rivet is riveted into the rivet hole e, the turntable drives the positioning fixture 104 to rotate to the second semi-finished product feeding mechanism 80. The second semi-finished product mechanism 80 includes a vibratory feeder, a feeding channel, a third conveying component, a hole position selection seat, and a hydraulic cylinder hole selection component. The vibratory feeder provides the second semi-finished product through the feeding channel. Then, the second conveying component transports the second semi-finished product provided by the feeding channel to the hole position selection seat. The hydraulic cylinder hole selection component includes a rotating clamping member and a hole selection detection switch. The rotating clamping member can clamp the end of the hydraulic cylinder f and rotate the hydraulic cylinder f. The hole selection detection switch is used to detect the hole position on the hydraulic cylinder f. When the hole selection detection switch detects that the hole position on the hydraulic cylinder f is horizontally set, the rotating clamping member stops rotating the hydraulic cylinder f. At this time, the third conveying component transports the second semi-finished product onto the positioning fixture 104. The second semi-finished product mechanism 80, the vibratory feeder, the feeding channel, the third conveying component, the hole position selection seat, and the hydraulic cylinder hole selection component all adopt existing structures, and the specific structures will not be described in detail.

[0066] In some alternative implementations, see [link to implementation details]. Figure 2 Inside the annular turntable, and opposite to the second semi-finished product feeding mechanism 80, there is a rivet-passing mechanism 20. After the second semi-finished product is fed, a rivet is connected in series at the three-rivet hole position j through the rivet-passing mechanism 20.

[0067] It is understandable that a pin-guiding mechanism 40 is provided between the second semi-finished product feeding mechanism 80 and the outer side of the annular turntable to assist the pin-threading mechanism 20 in threading pins.

[0068] In some alternative implementations, see [link to implementation details]. Figure 2 In the second semi-finished product feeding mechanism 80, a riveting mechanism 30 is provided. When the three nail holes j are connected with rivets, the first turntable 102 drives the positioning fixture 104 to rotate to the riveting mechanism 30 to perform riveting.

[0069] The nail insertion mechanism 20 and the pin insertion mechanism 40 used in the three nail hole position j are the same as those described above. The riveting mechanism 30 uses the existing riveting mechanism, which will not be described in detail here.

[0070] Therefore, see Figure 2 The first turntable 102 is equipped with a first semi-finished product feeding mechanism 70, a four-hole torsion spring feeding mechanism 50, a first nail-feeding mechanism 20 and a pin-guiding mechanism 40, a first riveting mechanism 30, a second semi-finished product assembly mechanism 80, a second nail-feeding mechanism 20 and a pin-guiding mechanism 40, and a second riveting mechanism 30.

[0071] In some alternative implementations, see [link to implementation details]. Figure 9The transfer and handling mechanism 10 includes a first mounting frame 11, a first rotating component 12, a first vertical moving component 13, a third gripper 14, and a feeding channel 15. The first mounting frame 11 is fixed to the frame 101, the first rotating component 12 is fixed to the first mounting frame 11, the first vertical moving component 13 is mounted on the first rotating component 12, and the third gripper 14 is fixed to the first vertical moving component 13. After the rivets at the three-prong hole j are riveted, the first turntable 102 drives it to rotate to the discharge position. Then, the first rotating component 12 drives the third gripper 14 to rotate through the first vertical moving component 13. When the third gripper 14 rotates to face the positioning fixture 104, the first vertical moving component 13 drives the third gripper 14 to move downward to clamp the semi-finished hinge on the positioning fixture 104. Subsequently, under the action of the first rotating component 12 and the first vertical moving component 13, the semi-finished hinge is transported to the positioning fixture 104 on the second turntable 103 for subsequent assembly operations.

[0072] If a portion of the hinge fails to assemble on the first turntable 102, the transfer and conveying mechanism 10 will transport the semi-finished hinge to the unloading channel 15.

[0073] In some alternative implementations, see [link to implementation details]. Figure 3 A pin-threading mechanism 20 and a pin-guiding mechanism 40 are first provided on the rotation trajectory (counterclockwise rotation) along the second turntable 103 to thread pins into the four holes.

[0074] In some alternative implementations, see [link to implementation details]. Figure 3 The hinge assembly equipment also includes a pocket U-nail feeding mechanism 60, which is located at the pocket U-nail feeding position, specifically after the nail insertion mechanism 20 and the rivet mechanism at the four nail hole position k. It is understood that the pocket U-nail feeding mechanism 60 can also be located in other positions; this solution places the pocket U-nail feeding mechanism 60 in this specific position only according to the preset assembly process of the hinge.

[0075] See Figures 10-14The U-nail feeding mechanism 60 includes a mounting base 61, a feeding assembly 62, a pouch feeding assembly 63, a U-nail feeding assembly, and a U-nail mounting assembly. The feeding assembly 62 includes a pouch clamping mold 621 and a pouch mold drive 623; the pouch clamping mold 621 is movably mounted on the mounting base 61, and the pouch clamping mold has a feeding position and an mounting position. The pocket clamping mold 621 is provided with a receiving groove 6211, a clamping member 622, a pocket feed port 6212, and a U-nail storage groove 6213. The receiving groove 6211 is located at the bottom of the pocket clamping mold 621, the clamping member 622 is provided on the inner side wall of the receiving groove 6211, the pocket feed port 6212 is located on the first side of the pocket clamping mold 621 and communicates with the receiving groove 6211, one end of the U-nail storage groove 6213 is connected to the receiving groove 6211, and the other end of the U-nail storage groove 6213 passes through the second side of the pocket clamping mold 621. The pocket mold driving member 623 is used to drive the pocket clamping mold 621 to move closer to or further away from the positioning fixture 104. At the feeding position, the pocket feeding assembly 63 is connected to the pocket feed port 6212, and the U-nail feeding assembly is connected to the U-nail storage groove 6213. The U-pin mounting assembly is used to install the U-pin m in the U-pin storage slot 6213 onto the hinge at the mounting position.

[0076] When the second turntable 103 rotates the positioning fixture 104 to the U-nail feeding position, the U-nail feeding mechanism 60 is used to feed the pocket 1 and assemble the U-nail m. Specifically, the pocket mold drive 623 drives the pocket clamping mold 621 to the feeding position. At the feeding position, since the pocket feeding component 63 is connected to the pocket inlet 6212 and the U-nail feeding component is connected to the U-nail storage slot 6213, the pocket feeding component 63 can provide the pocket 1 to the receiving slot 6211 of the pocket clamping mold 621, and the U-nail feeding component can provide the U-nail m to the U-nail storage slot 6213. Since the receiving slot 621 is provided with a clamping component 622, the clamping component 622 can clamp and fix the pocket 1 that has entered the receiving slot 6211, preventing the pocket 1 from falling out. Next, the pocket mold drive 623 drives the pocket clamping mold 621 to move to the mounting position on the side of the positioning fixture 104. At the mounting position, the pocket 1 is moved onto the positioning fixture 104 to realize the feeding of the pocket 1. Then, the U-nail mounting assembly installs the U-nail m in the U-nail storage slot 6213 onto the hinge to realize the assembly between the pocket 1 and the four-hole c and the stacked piece h.

[0077] A U-nail storage slot 6213 is provided within the pocket clamping mold 621, and the U-nail storage slot 6213 is connected to the U-nail feeding component at the feeding position. In this way, while the pocket feeding component 63 feeds material to the pocket clamping mold 621, the U-nail feeding component can also feed material synchronously. This is more efficient than having the pocket feeding component 63 and the U-nail feeding component independently, improving the loading efficiency of this station. Furthermore, the U-nail feeding component provides U-nails at the feeding position of the pocket clamping mold 621. Compared to feeding at the mounting position, this avoids the feeding structure of the U-nail feeding component being separated from other structures of the pocket U-nail feeding mechanism during the loading process, preventing problems such as excessive structure at the loading position, difficulty in arrangement, or even interference.

[0078] In some alternative implementations, see [link to implementation details]. Figures 13-14 The pocket clamping mold 621 includes a clamping mold body 6214 and a U-nail insert 624. The clamping mold body 6214 is provided with the aforementioned receiving groove 6211 and pocket feed port 6212. The U-nail insert 624 is detachably connected to the clamping mold body 6214, and the U-nail insert 624 is provided with a U-nail storage groove 6213.

[0079] By making the U-nail insert 624 a detachable structure, on the one hand, for different specifications of U-nails m, only the U-nail insert 624 needs to be set according to the corresponding specification of U-nails m, without having to set the entire pocket clamping mold 621. In comparison, by using the U-nail insert 624 to adapt to different specifications of U-nails m, the material cost is lower, and the structural features are simpler and the processing is more convenient. On the other hand, when the U-nails m are stuck in the U-nail insert 624, only the U-nail insert 624 needs to be removed and a new U-nail insert can be replaced, without having to disassemble the entire pocket clamping mold 621, making maintenance more convenient.

[0080] Specifically, the bottom of the clamping mold body 6214 is provided with a connecting groove 6216, and the U-shaped insert 624 is detachably connected to the connecting groove 6216. The detachable connection methods include, but are not limited to, screw connection, snap-fit ​​connection, and fastening connection.

[0081] In some alternative embodiments, the pocket clamping mold 621 is provided with an installation groove 6215 and an elastic member 625. The installation groove 6215 is connected to the receiving groove 6211. The clamping member 622 is slidably disposed in the installation groove 6215. The two ends of the elastic member 625 abut against the inner wall of the clamping member 622 and the installation groove 6215, respectively.

[0082] During the process of feeding the bag l into the receiving groove 6211, the clamping member 622 continuously abuts against the side wall of the bag l under the action of the elastic member 625. In this way, after the bag l moves into the receiving groove 6211, it can be clamped and fixed by the clamping member 622 to prevent it from falling.

[0083] Specifically, such as Figures 13-14 As shown, clamping members 622 are provided on both sides of the clamping mold body 6214, which can stably clamp the pocket 1. A mounting groove 6215 penetrates the clamping mold body 6214, and the clamping members 622 are slidably installed within the corresponding mounting groove 6215. An elastic element 625, which is a spring, is also installed within the mounting groove 6215. An end cap 626 is provided at the outer port of the mounting groove 6215. After the clamping members 622 and the elastic element 625 are installed in the mounting groove 6215, the end cap 626 covers the outer port of the mounting groove 6215, thus realizing the installation of the clamping members 622 and the elastic element 625.

[0084] In some alternative implementations, see [link to implementation details]. Figure 12 The pocket U-nail feeding mechanism 60 also includes a top-feeding assembly, which includes a top-feeding component 661 and a top-feeding drive component 662. The top-feeding assembly is located on the mounting base 61. One end of the top-feeding component 661 is connected to the top-feeding drive component 662, and the other end of the top-feeding component 661 passes through the pocket clamping mold 621 to the receiving groove 6211. When the pocket clamping mold 621 completes the reverse movement of the pocket U-nail feeding to the feeding position, the top-feeding drive component 662 drives the top-feeding component 661 to move towards one side of the pocket clamping mold 621, so that the top-feeding component 661 continuously presses against the pocket U-nail. At this time, during the process of the pocket clamping mold 621 moving to the initial position, the pocket U-nail will not be pulled up due to being clamped by the clamping component 622, ensuring the stability of the pocket U-nail on the positioning fixture 104 so as not to affect the subsequent assembly operation.

[0085] In some alternative implementations, see [link to implementation details]. Figure 12 The pocket mold driving component 623 includes a first sliding component 6232 and a telescopic cylinder. The first sliding component 6232 is vertically slidably connected to the mounting base 61. The top end of the first sliding component 6232 is connected to the telescopic cylinder, and the bottom end of the first sliding component 6232 is connected to the pocket clamping mold 621. When the telescopic cylinder operates, it drives the pocket clamping mold 621 to move up and down via the first sliding component 6232. The ejector driving component 662 is also a telescopic cylinder, which is mounted on the first sliding component 6232 and can move together with the first sliding component 6232. The ejector is a rod-shaped structure, with one end connected to the ejector driving component 662 and the other end extending downward through the pocket clamping mold 621 to the receiving groove 6211. During the process of the pocket clamping mold 621 moving upward to the initial position, the ejector 661 moves downward under the action of the ejector drive 662 and continues to press against the pocket 1 until the pocket clamping mold 621 disengages from the pocket 1. Then the ejector drive 662 drives the ejector 661 to move upward out of the receiving groove 6211 of the pocket clamping mold 621.

[0086] In some alternative implementations, see [link to implementation details]. Figures 10-11The pocket feeding assembly 63 includes a pocket feeding channel 631, a pocket separating component 632, and a pocket pushing component 633. The pocket feeding channel 631 also supplies pockets 1 via a vibratory feeder. The pocket separating component 632 has a pocket separating channel, one end of which is connected to the pocket feeding channel 631, and the other end of which is connected to the pocket inlet 6212 of the pocket clamping mold 621. The pocket pushing component 633 is slidably disposed within the pocket separating channel. When pockets 1 in the vibratory feeder enter the pocket feeding channel 631, pockets 1 move along the pocket feeding channel 631 into the pocket separating channel of the pocket separating component 632. Subsequently, the pocket pushing component 633 pushes pockets 1 to move until pockets 1 enter the receiving groove 6211 of the pocket clamping mold 621, thus achieving pocket feeding. During the process of the pusher 633 pushing the pouch l, the pouch receiving channel 631 cannot continue to provide pouch l to the pouch distributing channel; when the pusher 633 moves back to the initial position, that is, moves out of the pouch distributing channel, the pouch receiving channel 631 provides a pouch l to the pouch distributing channel.

[0087] The U-nail feeding assembly also uses the same principle for feeding; see [link / reference]. Figure 10 , Figure 12 The U-nail feeding assembly includes a U-nail feeding channel 641, a U-nail distributing seat 642, a first push rod 643, and a first driving member 644. The U-nail distributing seat 642 has a U-nail distributing channel and a U-nail feeding channel. The U-nail distributing channel is horizontally positioned and extends through both ends of the U-nail distributing seat 642, and is positioned opposite to the U-nail storage slot 6213. The U-nail feeding channel is located above the U-nail distributing channel. One end of the U-nail distributing channel is connected to the outlet end of the U-nail feeding channel 641, and the other end is connected to the U-nail distributing channel. One end of the first push rod 643 slides through the U-nail distributing channel. The first driving member 644 is a telescopic cylinder, fixed to the mounting base 61, and connected to the other end of the first push rod 643. The U-nail feeding channel 641 is also fed by a vibratory feeder. When the U-nail m moves from the U-nail channel to the U-nail feeding channel and then into the U-nail distributing channel, the first driving member 644 drives the first pushing rod 643 to move, thereby pushing the U-nail into the U-nail storage slot 6213. After the U-nail m is fed into the U-nail storage slot 6213, the first driving member 644 drives the first pushing rod 643 to move in the opposite direction to the initial position. During the process of the first pushing rod 643 pushing the U-nail m, the U-nail m in the U-nail feeding channel cannot enter the U-nail distributing channel due to the obstruction of the first pushing rod 643. After the first pushing rod 643 moves away, the U-nail m in the U-nail feeding channel falls into the U-nail feeding channel under the action of gravity.

[0088] See Figure 12The U-nail mounting assembly includes a second drive member 652 and a second push rod 651. The second drive member 652 is fixed to the mounting base 61. One end of the second push rod is connected to the second drive member 652, and the other end of the second push rod is used to push the U-nail m in the U-nail storage slot 6213 to the mounting hole on the positioning fixture 104.

[0089] The above-mentioned pocket feeding component 63, U-nail feeding component and U-nail installation component all adopt the existing structure, and will not be described in detail.

[0090] In some alternative implementations, see [link to implementation details]. Figure 12 The U-nail feeding mechanism 60 also includes a pin clamping assembly. The pin clamping assembly includes a pin clamping drive 672 and a pin 671. The pin clamping drive 672 is fixed to the mounting base 61, and the pin 671 is fixed to the pin clamping drive 672 and positioned opposite to the two-nail hole i of the hinge on the positioning fixture 104. Before assembling the pocket 1 and the U-nail m, the pin clamping drive 672 drives the pin 671 to pass through the two-nail hole i of the hinge, that is, through the holes in the arm body a and the stacked piece h. In this way, the stacked piece h is effectively restricted, and during the insertion of the U-nail m, one leg of the U-nail m can smoothly pass through the hole on the stacked piece h, greatly alleviating the problem of the U-nail m being unable to pass through the hole on the stacked piece h due to the movement of the stacked piece h.

[0091] In some alternative implementations, see [link to implementation details]. Figure 10 The U-nail feeding mechanism 60 also includes a U-nail guiding assembly. The U-nail guiding assembly includes a guide pin drive 682 and a U-nail guide pin 681. The guide pin drive 682 is fixed to the frame 101, and the U-nail guide pin 681 is disposed on the guide pin drive 682 and is positioned opposite to the U-nail m foot in the U-nail storage slot 6213. A guide pin insert 627 is provided at the bottom of the pocket clamping mold 621, and the guide pin insert is positioned opposite to the U-nail insert 624. During the process of the U-nail m moving to the U-nail storage slot 6213 and the U-nail m being inserted into the hinge, the guide pin drive 682 drives the U-nail guide pin 681 to move. The U-nail guide pin 681 passes through the guide pin insert 627 and moves towards the pin of the U-nail m, causing the U-nail guide pin 681 to abut against the end of the U-nail m foot, thereby enabling the U-nail m to move stably. After the U-nail m completes the needle insertion, the guide needle drive 682 drives the U-nail guide needle 681 to move to the initial position.

[0092] In some alternative implementations, see [link to implementation details]. Figure 10The pocket U-nail feeding mechanism 60 also includes a pressing assembly, which includes a pressing drive assembly 692 and a first pressing member 691. The pressing drive assembly is fixedly mounted on the frame 101. One end of the first pressing member 691 is mounted on the pressing drive assembly 692, and the other end of the first pressing member 691 is used to abut against the hinge parts on the positioning fixture 104. During the process of loading pockets 1 and inserting U-nails m, the first pressing member 691 drives the first pressing member 691 to move downward, so as to press the hinge parts, such as the arm body a and the hydraulic cylinder f, against the hinge parts, thereby making the hinge parts more stable during the process of loading pockets 1 and inserting U-nails m.

[0093] In some optional embodiments, after the two nails are inserted into the pocket, a nail insertion mechanism 20 is provided to insert the nails into the two nail holes. This nail insertion mechanism 20 is the same as the nail insertion mechanism 20 described above, and will not be described in detail again. During the process of inserting the two nails, it is necessary to press the other leg of the torsion spring d under the two nails first, so this assembly device also includes a compression spring mechanism 90.

[0094] In some alternative implementations, see [link to implementation details]. Figure 2 After the U-shaped nails are assembled, the rivets at the four nail holes k are riveted together using a riveting structure.

[0095] In some alternative implementations, see [link to implementation details]. Figures 15-16 The compression spring mechanism 90 includes a second mounting bracket 91, a second sliding member 92, a second pressing member 93, a third driving member 94, a third sliding member 95, a compression spring member 96, and a fourth driving member 97. The second mounting bracket 91 is mounted on the frame 101. The second sliding member 92 is vertically slidably mounted on the second mounting bracket 91. The second pressing member 93 is mounted on the second sliding member 92. The third driving member 94 is mounted on the second mounting bracket 91 and connected to the second sliding member 92 to drive the second sliding member 92 to move up and down. The third sliding member 95 is slidably mounted on the second sliding member 92. Specifically, the sliding direction of the third sliding member 95 is downwardly inclined along the length of the positioning fixture 104, which is also the downward pressing direction of the torsion spring d's support leg. One end of the compression spring member 96 is mounted on the third sliding member 95, and the other end of the third sliding member 95 extends downward to engage with the support leg of the torsion spring d. The fourth driving member 97 is connected to the second sliding member 92, and the fourth driving member 97 is connected to the third sliding member 95 to drive the third sliding member 95 to slide.

[0096] Before the rivet is inserted into the two-rivet hole i, the compression spring mechanism 90 first presses down the other foot of the torsion spring d below the two-rivet hole i. Specifically, the third driving member 94 drives the second sliding member 92 to move downward, and the second pressing member 93 also moves downward synchronously until the second pressing member 93 abuts against the hinge, so that the hinge has a stable state on the positioning fixture 104. During this process, the third sliding member 95, the compression spring member 96, and the fourth driving member 97 also move downward synchronously. Then, the fourth driving member 97 drives the third sliding member 95 to move downward, and the compression spring member 96 also moves downward synchronously. During the downward movement of the compression spring member 96, the bottom end of the compression spring member 96 first contacts the foot of the torsion spring d. Then, under the action of the compression spring member 96, the foot of the torsion spring d is pressed into the arm body a and below the two-rivet hole i. At this time, the rivet insertion mechanism 20 can perform the rivet insertion operation. After the rivet insertion is completed, the entire compression spring mechanism 90 moves back to the initial position.

[0097] In some alternative implementations, see [link to implementation details]. Figure 2 After the rivet is inserted into the two-rivet hole i, the rivet in the four-rivet hole k is riveted by the riveting structure. Next, the U-rivet m is clamped by the U-rivet clamping mechanism 100. The clamping structure can adopt existing clamping structures such as claws. Finally, the assembled hinge is unloaded by the unloading mechanism 110.

[0098] Example 2 A hinge assembly device is provided. The structure of the hinge assembly device in this embodiment is generally the same as that of the hinge assembly device in embodiment 1, except that: In some alternative implementations, see [link to implementation details]. Figure 2 There are multiple U-nail feeding mechanisms 60, such as two or three. These multiple U-nail feeding mechanisms 60 are located on the frame 101 at positions corresponding to the second turntable 103. By setting up multiple U-nail feeding mechanisms 60, when assembling different types of U-nails, one U-nail can be selected for assembly.

[0099] Example 3 A hinge assembly device is provided. The structure of the hinge assembly device in this embodiment is generally the same as that of the hinge assembly device in embodiment 1, except that: In this embodiment, the rivet insertion mechanism 20 and the corresponding pin guide mechanism 40 for each rivet can also be located in other positions. For example, they can be interchanged for rivet insertion work at three-rivet hole position j and four-rivet hole position k. For one-rivet hole position e and two-rivet hole position i, Embodiment 1 provides a preferred workstation position, but its position can also be adjusted in practice.

[0100] In this embodiment, the position of the riveting mechanism 30 can also be adjusted according to the hinge assembly process. For example, after four nails are threaded onto the second turntable 103, the riveting mechanism 30 can be directly set up for riveting. The positions of the other three riveting mechanisms 30 can also be adjusted as needed.

[0101] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A hinge assembly device, characterized in that, include: The frame is provided with a four-hole feeding position, a torsion spring feeding position, a hydraulic cylinder feeding position, a U-shaped feeding position, a pin insertion position, and a riveting position. A first turntable and a second turntable are rotatably connected to the frame, and the first turntable and the second turntable are spaced apart; the outer periphery of the first turntable and the second turntable are provided with a plurality of spaced positioning fixtures, and each positioning fixture is provided with a clearance channel; A transfer and handling mechanism is mounted on the frame and located between the first turntable and the second turntable; The device includes multiple pin insertion positions, each corresponding to both the first and second turntables. The riveting position corresponds to at least the second turntable. The four-hole feeding position, the torsion spring feeding position, some of the pin insertion positions, and the hydraulic cylinder feeding position are arranged along the rotation trajectory of the first turntable. The pocket U-nail feeding position, another portion of the pin insertion positions, and the riveting position are arranged along the rotation trajectory of the second turntable.

2. The hinge assembly equipment according to claim 1, characterized in that: The hinge assembly equipment also includes a pin-insertion mechanism, a pin-guiding mechanism, and a riveting mechanism. The pin-insertion mechanism is located at the pin-insertion position, the pin-guiding mechanism is located on the frame at a position opposite to the pin-insertion mechanism, and the riveting mechanism is located at the riveting position. The rivet insertion mechanism includes a rivet ejector seat, a rivet pusher, and a rivet pusher drive. The rivet ejector seat has a rivet ejection channel, which is opposite to one side of the clearance channel. One end of the rivet pusher is movably disposed in the rivet ejection channel, and the rivet pusher drive is connected to the other end of the rivet pusher. The rivet pusher drive is used to push the rivet in the rivet ejection channel to perform the rivet insertion operation. The needle guide mechanism includes a needle guide seat, a needle guide, and a needle guide drive. The needle guide seat is mounted on the frame, and the needle guide is movably mounted on the needle guide seat. The needle guide is positioned opposite to the other side of the clearance channel. The needle guide drive is used to drive the needle guide to move closer to or further away from the clearance channel during the nail insertion operation. The riveting mechanism is used to rivet the rivets of the hinges on the positioning fixture; The pin-piercing mechanism and the riveting mechanism are arranged sequentially along the rotation direction of the corresponding turntable.

3. The hinge assembly equipment according to claim 2, characterized in that: The four-hole feeding position and the torsion spring feeding position form a four-hole torsion spring mounting position in the same area on the frame; The hinge assembly equipment also includes a four-hole torsion spring feeding mechanism, which is located at the four-hole torsion spring mounting position. The four-hole torsion spring feeding mechanism includes a material distribution seat, a torsion spring pusher, a torsion spring drive, and a first conveying assembly. The material distribution seat has four feeding positions, a torsion spring feeding position, and a connecting straight groove. The four feeding positions have four feeding ports, and the torsion spring feeding position has a torsion spring feeding port. The two ends of the connecting straight groove are respectively connected to the four feeding positions and the torsion spring feeding position. The torsion spring pusher is slidably disposed on the material distribution seat and is opposite to the connecting straight groove. The other end of the torsion spring pusher is connected to the torsion spring drive. The torsion spring drive is used to drive the torsion spring pusher to move closer to or away from the connecting straight groove. The first conveying component is used to convey the four holes with torsion springs installed on the four-hole loading position to the positioning fixture.

4. The hinge assembly equipment according to claim 3, characterized in that: The material distribution seat includes a material distribution seat body and a four-hole material distribution block; the material distribution seat body is provided with a first sliding groove, a torsion spring feeding position, a connecting straight groove, a four-hole feeding port and a torsion spring feeding port, and the four-hole feeding port is lower than the discharge end of the connecting straight groove; The first chute vertically penetrates the main body of the material distribution seat, and the first chute is connected to the connecting straight groove; the four-hole material distribution block is slidably connected to the first chute, and the top of the four-hole material distribution block is provided with the four-hole feeding position.

5. The hinge assembly equipment according to claim 3, characterized in that: The four-hole torsion spring feeding mechanism also includes a torsion spring adjustment assembly, which includes an adjustment member and an adjustment drive member. One end of the adjustment member is a pusher, and the other end of the adjustment member is connected to the adjustment drive member. The adjustment drive member is used to drive the adjustment member to move so that the pusher can push one leg of the torsion spring to flatly adhere to the four holes.

6. The hinge assembly equipment according to claim 3, characterized in that: The needle insertion mechanism is located on the side of the four-hole torsion spring feeding mechanism near the first turntable.

7. The hinge assembly equipment according to claim 1, characterized in that: The hinge assembly equipment also includes a pocket U-nail feeding mechanism, which is located at the pocket U-nail feeding position; The pocket U-nail feeding mechanism includes a mounting base, a feeding component, a pocket feeding component, a U-nail feeding component, and a U-nail mounting component; The feeding assembly includes a pocket clamping mold and a pocket mold driving component; the pocket clamping mold is movably mounted on the mounting base, and has a feeding position and a mounting position. The pocket clamping mold is provided with a receiving groove, a clamping component, a pocket feeding port, and a U-nail storage groove. The receiving groove is located at the bottom of the pocket clamping mold, the clamping component is located on the inner side wall of the receiving groove, the pocket feeding port is located on the first side of the pocket clamping mold and communicates with the receiving groove, one end of the U-nail storage groove is connected to the receiving groove, and the other end of the U-nail storage groove passes through the second side of the pocket clamping mold; the pocket mold driving component is used to drive the pocket clamping mold to move closer to or further away from the positioning fixture. At the feeding position, the pocket feeding assembly is connected to the pocket feeding port, and the U-nail feeding assembly is connected to the U-nail storage slot; The U-nail mounting assembly is used to mount the U-nail in the U-nail storage slot onto the hinge at the mounting position.

8. The hinge assembly equipment according to claim 7, characterized in that: The pocket clamping mold includes a clamping mold body and a U-nail insert. The clamping mold body is provided with the receiving groove and the pocket inlet. The U-nail insert is detachably connected to the clamping mold body and is provided with the U-nail storage groove.

9. The hinge assembly equipment according to claim 7, characterized in that: The pocket clamping mold is provided with an installation slide groove and an elastic element. The installation slide groove is connected to the receiving groove. The clamping element is slidably disposed in the installation slide groove. The two ends of the elastic element respectively abut against the inner wall of the clamping element and the installation slide groove.

10. The hinge assembly equipment according to claim 9, characterized in that: The pocket U-nail feeding mechanism also includes a top feeding assembly, which includes a top feeding component and a top feeding drive component. The top feeding assembly is located on the mounting base. One end of the top feeding component is connected to the top feeding drive component, and the other end of the top feeding component passes through the pocket clamping mold to the receiving groove.

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