Automatic assembly equipment for steering wheel accessories

Abstract

The present invention discloses an automatic assembly device for steering wheel accessories, which relates to the technical field of automobile accessories assembly, and solves the problems of low assembly efficiency and improper installation of accessories such as buttons and dials in the middle of automobile steering wheels. The device comprises an annular conveyor line, on which a plurality of jig plates are arranged, and also comprises: a transplanting and handling unit arranged in sequence along the circumference of the annular conveyor line; a flip unit, on both sides of which a front glue dispensing unit and a back glue dispensing unit are respectively arranged; a small-size skeleton feeding unit; a button assembly unit; a large-size skeleton feeding unit; and a dial feeding detection unit. The automatic assembly device for steering wheel accessories of the present invention integrates all the processes into one production line, so that the assembly time of each accessory overlaps, so that there will be no untimely connection between the processes, which greatly shortens the assembly time, and each accessory is accurately assembled automatically by the machine, with a high degree of automation.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts assembly, in particular to automatic assembly equipment for steering wheel parts. Background Art

[0002] The steering wheel is a wheel-shaped device that controls the direction of the car. Its function is to convert the force applied by the driver to the edge of the steering wheel into torque and then transmit it to the steering shaft, thereby controlling the direction of the car. The middle part of the steering wheel is integrated with a variety of buttons and dials with different functions.

[0003] The steering wheel of a car is assembled from a variety of different accessories. In particular, the assembly of accessories such as buttons and dials is usually done manually using semi-automatic equipment to assemble each accessory in turn during the assembly process. After the assembly is completed, it is checked whether each accessory is assembled in place. Before assembly, the product to be assembled needs to be oiled. Since the various assembly processes are relatively scattered, it is easy for the connection between the processes to be delayed, which will affect the assembly efficiency of the accessories. At the same time, some accessories need to be assembled manually. After the buttons, dials and other accessories are assembled manually, they are transferred to the next process in turn. The manual assembly has a low fault tolerance rate and is prone to incomplete assembly. Once the accessories are not assembled in place, they are prone to failure in actual use. Therefore, the assembly requirements for various accessories on the steering wheel of a car are high.

[0004] For example, the button assembly machine disclosed in the publication number CN116544051A can only assemble a certain button on the steering wheel separately, has a relatively simple function, and can only assemble one type of button, and cannot assemble other accessories on the steering wheel, such as dials and accessories that match the buttons. In general, there is currently no equipment for centrally assembling the buttons, dials and accessories that match the buttons in the middle of the steering wheel. The assembly of each accessory still adopts a combination of machine and manual labor, which is inefficient. Summary of the invention

[0005] The purpose of the present invention is to solve the above problems. An automatic assembly device for steering wheel accessories is designed to solve the problems of low assembly efficiency and improper installation of accessories such as buttons and dials in the middle of a car steering wheel.

[0006] The technical solution of the present invention to achieve the above-mentioned purpose is to provide an automatic assembly device for steering wheel accessories, including an annular conveyor line, on which a plurality of jig plates for positioning the products to be assembled are arranged, and further comprising:

[0007] A transfer unit for transferring products to be assembled, wherein a loading and unloading conveying device for conveying products to be assembled is provided below the transfer unit;

[0008] A flipping unit, used to flip the product to be assembled, wherein two sides of the flipping unit are respectively provided with a front glue dispensing unit and a back glue dispensing unit for dispensing glue on the front and back sides of the product to be assembled;

[0009] A small-sized skeleton loading unit, the small-sized skeleton loading unit comprising a small-sized skeleton loading synchronous belt for storing a jig tray carrying accessories A and lifting the jig tray upward layer by layer, a material ejection mechanism for ejecting accessories A on the jig tray from the jig tray, a transport mechanism for transferring the jig tray carrying accessories A from the small-sized skeleton loading synchronous belt to the material ejection mechanism, and a material taking mechanism A for sucking and transferring accessories A to the product to be assembled;

[0010] A key assembly unit, the key assembly unit comprising a feeding mechanism, an assembly mechanism for pressing the accessories B onto the product to be assembled, and a transfer mechanism A for transferring the accessories B on the feeding mechanism to the assembly mechanism one by one;

[0011] A large-frame loading unit, the large-frame loading unit comprising a large-frame loading synchronous belt for storing a jig plate carrying accessories C, a retrieving platform for removing accessories C from the jig plate, and a retrieving mechanism B for sucking and placing the removed accessories C on a product to be assembled on the jig plate;

[0012] A dial button loading detection unit, the dial button loading detection unit includes a tray loading module for conveying accessory D, a pressing mechanism for positioning accessory D and pressing accessory D into a product to be assembled on a jig plate, a position detection mechanism for detecting the position of accessory D in the assembled product, and a transfer mechanism B for transferring accessory D on the tray loading module to the pressing mechanism.

[0013] Furthermore, the flipping unit includes two clamping and flipping assemblies, which include a fixed bracket, a guide rail fixing plate vertically fixed on the fixed bracket and used to drive the guide rail fixing plate to rise and fall, a bearing seat slidingly connected to the bottom of the guide rail fixing plate, a rotating shaft rotatably connected to the bearing seat, gears and cylinder connecting plates respectively arranged at both ends of the rotating shaft, a clamping cylinder installed on the cylinder connecting plate, two clamping claws arranged on the clamping cylinder, a rack arranged at the bottom of the fixed plate and meshing with the gear, and a flipping cylinder for driving the bearing seat to move.

[0014] Preferably, the flip unit includes a rotating shaft, a flip connecting piece fixedly connected to one end of the rotating shaft, a bearing plate rotatably connected to the other end of the rotating shaft, a flip control plate slidably arranged on one side of the bearing plate, a flip driving mechanism for driving the flip control plate to move, a deflection member fixedly connected to one end of the rotating shaft away from the flip connecting piece, and a clamping mechanism fixedly arranged on the flip connecting piece, a slide groove for controlling the rotation of the rotating shaft is provided on the flip control plate, the distribution trajectory of the slide groove is adapted to the deflection trajectory of the deflection member, and the end of the deflection member away from the rotating shaft is slidably connected to the slide groove

[0015] Furthermore, the small-sized skeleton loading unit also includes a small-sized skeleton unloading synchronous belt for storing empty jig trays, and a transverse movement mechanism for switching the position of the jig tray arranged on the front side of the small-sized skeleton unloading synchronous belt and the small-sized skeleton loading synchronous belt. The lifting mechanism, the conveying mechanism and the picking mechanism A are each provided with two, and the two lifting mechanisms correspond to the two ends of the transverse movement mechanism respectively. The two conveying mechanisms are respectively arranged on one side of the small-sized skeleton unloading synchronous belt and the small-sized skeleton loading synchronous belt. The two picking mechanisms A are respectively arranged on one side of the two lifting mechanisms, and the jig tray loaded with accessories A is transferred to the lifting mechanism by the conveying mechanism.

[0016] Furthermore, the structures of the small-size skeleton unloading synchronous belt and the small-size skeleton loading synchronous belt are consistent. The small-size skeleton loading synchronous belt includes a synchronous belt body and a lifting mechanism arranged at the rear end of the synchronous belt body. Baffles are arranged on both sides of the synchronous belt, and a material bin for storing the jig disc is formed between the two baffles. Limiting plates are arranged on both sides of the end of the conveying direction of the synchronous belt body, and the jig disc located between the two limiting plates is lifted upward step by step by the lifting mechanism.

[0017] Furthermore, the ejection mechanism includes a supporting plate, two pressing blocks that can move toward each other, a ejection block for ejecting accessory A from the fixture plate, and an ejection cylinder for driving the ejection block upward. A positioning block for positioning the fixture plate is provided on the supporting plate.

[0018] Furthermore, the assembly mechanism includes a horizontally arranged linear moving module, a mounting plate arranged on the linear moving module, a lifting cylinder vertically fixed on the mounting plate, a slide plate installed on the lifting cylinder, and a lifting block arranged on the top of the slide plate, wherein the top of the lifting block protrudes upward to form a positioning portion for positioning accessory B.

[0019] Furthermore, the large-scale skeleton loading unit also includes a large-scale skeleton unloading synchronous belt for storing an empty fixture plate, and a transplanting and handling module spanning above the large-scale skeleton loading synchronous belt and the large-scale skeleton unloading synchronous belt. The material-retrieving platform is provided with two, both of which are located between the large-scale skeleton loading synchronous belt and the large-scale skeleton unloading synchronous belt;

[0020] The material-collecting platform includes a support plate, a positioning plate located above the support plate, a jacking drive module rotatably connected to the support plate, a drive motor that drives the jacking drive module to rotate, a push rod located above the jacking drive module and slidably connected to the positioning plate up and down, and two clamping plates that are respectively located on both sides of the positioning plate and can move toward each other. The top of the jacking drive module has a protrusion on the circumference, and the bottom of the push rod is provided with a rolling ball that cooperates with the protrusion. When the jacking drive module rotates, the push rod can be lifted upward by the protrusion.

[0021] Furthermore, the position detection mechanism includes a detection mounting plate that can move up and down, a clamping plate that is slidably connected to the detection mounting plate through a guide rod, a detection rod that is slidably connected to the detection mounting plate, a contact head arranged at the bottom of the detection rod, and a photoelectric sensor located directly above the detection rod, the bottom surface of the clamping plate is formed with a cavity that is compatible with the shape of the product to be assembled, the bottom surface of the contact head is formed with a groove that is compatible with the shape of the accessory D, and the photoelectric sensor can measure the change in distance from the upper surface of the detection rod to the lower surface of the photoelectric sensor.

[0022] Furthermore, a height detection mechanism is arranged between the large frame feeding unit and the button feeding detection unit, and the height detection mechanism includes a detection fixing plate that can move up and down, a reference plate and a pressure plate respectively located above and below the detection fixing plate and connected to each other by a guide rod, and a photoelectric sensor located above the reference plate, the guide rod is slidably connected to the detection fixing plate up and down, the photoelectric sensor can detect the distance between the upper surface of the reference plate and the lower surface of the photoelectric sensor, and the bottom surface of the pressure plate is formed with a cavity that is adapted to the shape of the product to be assembled.

[0023] Compared with the prior art, the beneficial effects are:

[0024] The present invention loads products to be assembled, which are grabbed by a transfer and handling unit and transferred to a jig plate on a circular conveyor line, where they are positioned by the jig plate. The circular conveyor line then sequentially transfers the jig plate to the locations of various workstations, where the front and back sides of the products are turned over and glued by a gluing unit and a turning unit. Then, the buttons, dial buttons and required accessories with different functions are assembled onto the products to be assembled by a small skeleton feeding unit, a key assembly unit, a large skeleton feeding unit and a dial button feeding and detection unit. Finally, it is detected whether the dial button is in place, thereby realizing automatic assembly of accessories in the middle part of the steering wheel. The problems of low assembly efficiency and high error rate of existing steering wheel accessories are solved, whereby the defective rate is reduced and product quality is improved.

[0025] Since all the working procedures are integrated into one production line, the assembly time of each accessory overlaps, so there will be no untimely connection between the working procedures, which greatly shortens the assembly time. In addition, each accessory is automatically assembled by the machine and does not require manual assembly. Therefore, the equipment has a high degree of automation and can accurately assemble each accessory. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the planar structure of the automatic assembly equipment for steering wheel accessories in Example 1 of the present invention;

[0027] Figure 2 is a schematic structural diagram of the annular conveyor line in Example 1;

[0028] Figure 3 is a schematic structural diagram of the transplanting and handling unit in Example 1;

[0029] Figure 4 is a schematic structural diagram of the dispensing unit in Example 1;

[0030] Figure 5 is a schematic structural diagram of the flipping unit in Example 1;

[0031] Figure 6 It is a schematic diagram of the structure of the clamping and flipping components in the flipping unit;

[0032] Figure 7 is a structural schematic diagram of the clamping and flipping assembly from another perspective;

[0033] Figure 8 It is a schematic diagram of the planar structure of the small-sized skeleton feeding unit in Example 1;

[0034] Fig. 9 It is a schematic diagram of the structure of the small-sized skeleton feeding synchronous belt in the small-sized skeleton feeding unit;

[0035] Fig.10 This is a structural diagram of the lifting mechanism in the small-sized skeleton feeding synchronous belt;

[0036] Fig.11 It is a schematic diagram of the structure of the handling mechanism in the small-sized skeleton loading unit;

[0037] Fig.12 It is a structural diagram of the material taking mechanism A in the small-sized skeleton feeding unit;

[0038] Fig.13 It is a schematic diagram of the structure of the pressure plate in the material taking mechanism A;

[0039] Fig.14 This is a schematic diagram of the structure of the ejector mechanism in the small-sized skeleton loading unit;

[0040] Fig.15It is a schematic diagram of the structure of the pressing block in the ejecting mechanism;

[0041] Fig.16 is a structural schematic diagram of the key assembly unit in Example 1;

[0042] Fig.17 It is a structural schematic diagram of an assembly mechanism in a key assembly unit;

[0043] Fig.18 It is a structural schematic diagram of the large frame feeding unit in Example 1;

[0044] Fig.19 This is a schematic diagram of the structure of the reclaiming platform in the large-scale skeleton loading unit;

[0045] Fig. 20 It is a schematic diagram of the installation structure of the top rod and the clamping plate in the material taking platform;

[0046] Fig.21 It is a structural diagram of the lifting drive module in the reclaiming platform;

[0047] Fig. 22 is a structural schematic diagram of the dial button feeding detection unit in Example 1;

[0048] Fig.23 It is a structural diagram of the top pressing mechanism and the position detection mechanism in the dial button feeding detection unit;

[0049] Fig.24 It is a schematic diagram of the installation structure of the detection rod and the contact head in the position detection mechanism;

[0050] Fig.25 is a schematic structural diagram of the height detection mechanism in Example 1;

[0051] Fig.26 is a schematic structural diagram of a turning unit in the automatic assembly equipment for steering wheel accessories in Embodiment 2 of the present invention;

[0052] Fig. 27 is a schematic structural diagram of the flip unit in Embodiment 2 from another viewing angle;

[0053] Fig.28 is a structural schematic diagram of the flip unit in Embodiment 2 from another viewing angle;

[0054] Fig.29 It is a structural schematic diagram of the flip control panel in the flip unit in Example 2.

[0055] In the figure, 1, annular conveyor line; 2, transplanting and handling unit; 21, first handling mechanism; 22, loading and unloading conveying device; 3, reverse side dispensing unit; 31, three-axis moving module; 32, dispensing assembly; 4, flip unit; 41, clamping flip assembly; 411, fixed bracket; 412, guide rail fixing plate; 413, flip cylinder; 414, bearing seat; 415, cylinder connecting plate; 416, blocking plate; 417, buffer; 418, gear; 419, rack; 421, flip control board; 4211, slide; 422, flip driving mechanism; 423, deflector; 424, flip connecting member; 425, bearing plate; 426, roller; 5, Front dispensing unit; 6, small frame feeding unit; 61, small frame feeding synchronous belt; 611, synchronous belt body; 612, lifting mechanism; 6121, lifting plate; 613, baffle; 614, limit plate; 615, blocking mechanism; 62, small frame unloading synchronous belt; 63, second transport mechanism; 64, material picking mechanism A; 641, material picking robot; 642, guide plate; 643, pressure plate; 6431, groove; 644, buffer spring; 65, ejecting mechanism; 651, bottom plate; 652, bearing plate; 653, ejecting cylinder; 654, pressure block; 6541, pressing part; 655, ejecting block; 6551, limit column; 656, fixed Positioning cylinder; 657, sliding connecting plate; 658, positioning block; 66, transverse movement mechanism; 7, button assembly unit; 71, feeding mechanism; 72, transplanting mechanism A; 73, assembly mechanism; 731, linear movement module; 732, lifting cylinder; 733, slide plate; 734, lifting block; 74, primary visual positioning mechanism; 75, secondary visual positioning mechanism; 8, large-scale skeleton feeding unit; 81, large-scale skeleton feeding synchronous belt; 82, large-scale skeleton unloading synchronous belt; 83, material collection platform; 831, support plate; 832, positioning plate; 833, lifting drive module; 8331, lifting part; 834, drive motor; 835, ejector; 836, Positioning piece; 837, rolling ball; 838, clamping plate; 839, light shield; 84, material picking mechanism B; 85, transplanting and handling module; 9, dial feeding detection unit; 91, tray feeding module; 911, conveyor plate; 92, transplanting mechanism B; 93, pressing mechanism; 94, position detection mechanism; 941, detection mounting plate; 942, clamping plate; 943, detection rod; 944, contact head; 10, height detection mechanism; 101, detection fixing plate; 102, reference plate; 103, positioning pin; 11, laser engraving mechanism; 12, coding mechanism; 13, fixture plate; 14, NG box; 15, photoelectric sensor; 16, rotating shaft; 17, code scanning mechanism. DETAILED DESCRIPTION

[0056] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0057] like Figure 1-Figure 2 As shown, embodiment 1 of the present invention proposes an automatic assembly equipment for steering wheel accessories, which mainly includes a circular conveyor line 1, and a transplanting and handling unit 2, a reverse glue dispensing unit 3, a turning unit 4, a front glue dispensing unit 5, a small-size skeleton feeding unit 6, a key assembly unit 7, a large-size skeleton feeding unit 8, a height detection mechanism 10, a dial button feeding detection unit 9, a laser engraving mechanism 11 and a laser engraving mechanism, which are sequentially arranged along the circumference of the circular conveyor line 1. A plurality of jig plates 13 are evenly distributed on the circular conveyor line 1, and the jig plates 13 are used to position and fix unassembled products. The unassembled products are transferred to the jig plates 13 on the circular conveyor line 1 by the transplanting and handling unit 2, and then different keys and dial buttons are assembled to the products through various mechanisms located on the circumference of the circular conveyor line 1 in sequence, and the quality of the assembly is detected. The qualified products are removed from the circular conveyor line 1 by the transplanting and handling unit 2, and the unqualified products are placed in the NG box 14 by the transplanting and handling unit 2 for storage.

[0058] like Figure 3 As shown, the transplanting and handling unit 2 is located at the front end of the circular conveyor line 1, which is composed of two handling mechanisms, and a loading and unloading conveying device 22 is arranged below the two handling mechanisms. The two handling mechanisms are called first handling mechanisms 21, and the NG box 14 is located below one of the first handling mechanisms 21. The two first handling mechanisms 21 are arranged in parallel, one is used to clamp the product to be assembled on the conveying mechanism and transfer it to the fixture plate 13 on the circular conveyor line 1 and remove the finished product from the fixture plate 13 and transfer it to the conveying mechanism, and the other is used to transfer the defective product from the conveying mechanism to the NG box 14.

[0059] The first transport mechanism 21 is composed of a linear module, a lifting module and a grabbing assembly, and the linear module and the lifting module are used to control the horizontal and vertical movement of the grabbing assembly. The grabbing assembly is controlled by a cylinder to open and close two clamps to grab the product to be assembled.

[0060] The loading and unloading conveying device 22 has two conveying paths for conveying the products to be assembled alternately, one for loading and conveying, and the other for unloading and conveying, so as to improve the conveying efficiency of the products to be assembled.

[0061] The circular conveyor line 1 rotates clockwise, and the product to be assembled is first conveyed to the location of the back glue dispensing unit 3. The structure of the back glue dispensing unit 3 is the same as that of the front glue dispensing unit 5. The back glue dispensing unit 3 is used to dispense glue on the back of the product to be assembled. Then the flip unit 4 flips the product to be assembled, and the front glue dispensing unit 5 dispenses glue on the front of the product to be assembled.

[0062] like Figure 4 As shown, the reverse side glue dispensing unit 3 is composed of a three-axis moving module 31 and a glue dispensing component 32. The three-axis moving module 31 is used to control the glue dispensing component 32 to move up and down, front and back, left and right, and the glue dispensing component 32 is used to perform glue dispensing operations on the product to be assembled.

[0063] like Figure 5-Figure 7 As shown, the flipping unit 4 in this embodiment is composed of two clamping flipping assemblies 41, each of which can clamp a product to be assembled and flip the product. The clamping flipping assembly 41 is composed of a fixed bracket 411, a guide rail fixing plate 412, a bearing seat 414, a rotating shaft 16, a cylinder connecting plate 415, a clamping cylinder, a clamping claw and other components, wherein a vertically fixed lifting cylinder is arranged on the fixed bracket 411, the guide rail fixing plate 412 is connected to the output end of the lifting cylinder, a guide rail is arranged at the bottom of the guide rail fixing plate 412, and the bearing seat 414 is slidably connected to the guide rail through a slider. Cylinder fixing plates and blocking plates 416 are respectively arranged at both ends of the bottom of the guide rail fixing plate 412, and a flipping cylinder 413 is arranged on the cylinder fixing plate, and the output end of the flipping cylinder 413 is connected to the bearing seat 414 to control the bearing seat 414 to slide along the guide rail. A buffer 417 is provided on the cylinder fixing plate and the blocking plate 416 to play a buffering role and reduce the impact force when the bearing seat 414 is transferred.

[0064] The rotating shaft 16 is rotatably connected to the bearing seat 414 through a bearing, and both ends of the rotating shaft pass through the bearing seat 414, one end of which is connected to the gear 418, and the other end is connected to the cylinder connecting plate 415. The clamping cylinder is installed on the cylinder connecting plate 415, and two clamping claws are arranged at the output end of the clamping cylinder. The shapes of the opposite sides of the two clamping claws are adapted to the shape of the product to be assembled, so as to accurately clamp the product.

[0065] A rack 419 is also provided at the bottom of the guide rail fixing plate 412, and the rack 419 meshes with the gear 418. When the turning cylinder 413 drives the bearing seat 414 to move horizontally, the rotating shaft 16 drives the clamping cylinder to rotate under the cooperation of the gear 418 and the rack 419, thereby turning over the product to be assembled.

[0066] There are four acupuncture points on the fixture plate 13, with two acupuncture points in each group, and the two groups of acupuncture points are symmetrically distributed. One group of acupuncture points is used to place two products to be assembled, and the other group of acupuncture points is vacant. When the products to be assembled are glued on the front and turned over, the turned products to be assembled will be placed in another group of acupuncture points. The products to be assembled that have completed glue on the front and back sides will be transported by the ring conveyor line 1 to the location of the small skeleton feeding unit 6.

[0067] like Figure 8 As shown, the small-sized skeleton loading unit 6 is composed of a small-sized skeleton loading synchronous belt 61, a small-sized skeleton unloading synchronous belt 62, a feeding mechanism 65, a transverse mechanism 66, a second transport mechanism 63 and a material taking mechanism A 64, wherein the small-sized skeleton loading synchronous belt 61 and the small-sized skeleton unloading synchronous belt 62 are arranged in parallel, the small-sized skeleton loading synchronous belt 61 is used to store the stacked jig trays loaded with different buttons, and is used for loading the jig trays; the small-sized skeleton loading synchronous belt 61 is used to store the empty jig trays, and is used for unloading the jig trays. There are two feeding mechanisms 65, which are respectively located at the same end of the small-sized skeleton loading synchronous belt 61 and the small-sized skeleton unloading synchronous belt 62. The transverse mechanism 66 is located on the other side of the feeding mechanism 65 (the side away from the synchronous belt), and the two ends of the transverse mechanism 66 correspond to the two feeding mechanisms 65, respectively, and are used to transfer the jig tray from the location of one of the feeding mechanisms 65 to the location of the other feeding mechanism 65. A second transport mechanism 63 and a material taking mechanism A 64 are respectively arranged on one side of the small-size frame loading synchronous belt 61 and the small-size frame unloading synchronous belt 62.

[0068] like Fig. 9 , Fig.10 As shown, the structures of the small-sized skeleton loading synchronous belt 61 and the small-sized skeleton unloading synchronous belt 62 are the same, but they are used for different purposes. The small-sized skeleton loading synchronous belt 61 is composed of a synchronous belt body 611 and a lifting mechanism 612. The synchronous belt body 611 is controlled by a motor. A baffle 613 is arranged on each side of the synchronous belt body 611. A material bin is formed between the two baffles 613. The stacked jig discs will be stored in the material bin and transmitted backward in sequence through the synchronous belt body 611. Two limiting plates 614 are arranged at one end of the synchronous belt body 611 close to the ejection mechanism 65. The two limiting plates 614 are used to limit a stack of jig discs transmitted to the end of the synchronous belt body 611 to prevent the stack from collapsing. The lifting mechanism 612 is arranged at the end of the synchronous belt body 611, and is used to lift the jig discs between the two limiting plates 614 upward step by step.

[0069] refer to Fig.11The second transport mechanism 63 is also controlled by a cylinder to grab the fixture tray. The stack of fixture trays between the two limit plates 614 will be grabbed by the second transport mechanism 63 starting from the top layer. Every time a fixture tray is grabbed, the lifting mechanism 612 lifts the fixture tray up one layer. The lifting mechanism 612 is controlled by a vertically fixed linear module to move the lifting plate 6121 up and down to lift the fixture tray upward.

[0070] refer to Fig. 9 A certain gap is left between the limit plate 614 and the baffle 613, and a blocking mechanism 615 is arranged at the position of the gap. The blocking mechanism 615 is a blocking member controlled by a cylinder and inserted into the conveying direction of the synchronous belt body 611 to block the subsequent fixture disc from entering between the limit plates 614.

[0071] like Fig.14 As shown, the ejection mechanism 65 is composed of a bottom plate 651, a bearing plate 652, an ejection cylinder 653, a pressure block 654, an ejection block 655 and other components, wherein the bearing plate 652 is located above the bottom plate 651 and is connected to the bottom plate 651 through a support rod, and two ejection cylinders 653 are provided, corresponding to two buttons respectively. The two ejection cylinders 653 are vertically fixed on the bottom plate 651, and the output end of the ejection cylinder 653 is connected to the ejection block 655 to control the ejection block 655 to move up and down through the bearing plate 652. Two limiting posts 6551 are provided on the top of the ejection block 655, and the distribution positions of the two limiting posts 6551 are adapted to the shape of the button, and are used to limit the button in the process of pushing the button upward.

[0072] A positioning cylinder 656 is provided on one side of the bottom of the supporting plate 652, and two pressing blocks 654 are respectively installed and fixed on two sliding connecting plates 657 through connecting parts. The sliding connecting plates 657 are slidingly connected to the bottom of the supporting plate 652. The tail end of the positioning cylinder 656 is connected to one of the sliding connecting plates 657, and the output end is connected to the other sliding connecting plate 657. The two sliding connecting plates 657 can be controlled to move toward each other through the positioning cylinder 656, thereby driving the two pressing blocks 654 to move toward each other, and pressing the fixture disk located on the supporting plate 652.

[0073] refer to Fig.15 The two pressing blocks 654 have pressing parts 6541 protruding outward on opposite sides thereof. The pressing parts 6541 abut against the top surface of the jig plate to hold the jig plate and prevent the jig plate from moving upwards when the key is pushed upwards. A positioning block 658 is also provided on the carrier plate 652 to position the jig plate.

[0074] like Fig.12As shown, the material picking mechanism A 64 is composed of a material picking robot 641, a guide plate 642, and a pressure plate 643, wherein a guide rod is provided at each of the four corners of the pressure plate 643, and the upper end of the guide rod is slidably connected with the guide plate 642 up and down, and a buffer spring 644 is provided between the guide plate 642 and the pressure plate 643 to play a buffering role when the pressure plate 643 is pressed down. The buffer spring 644 can also be provided on the guide rod.

[0075] refer to Fig.13 Four grooves 6431 are formed on the bottom surface of the pressing plate 643, which are consistent with the shape of the key, and each groove 6431 has a suction hole 6432, which is connected to an external air source to generate negative pressure to suck the key. The shapes of the grooves 6431 on the bottom surface of the pressing plate 643 in the two material picking mechanisms A 64 are different, and the shapes of the grooves 6431 on the two pressing plates 643 are consistent with different keys on the fixture plate.

[0076] The material-retrieving robot 641 controls the pressing plate 643 to press down, and the lower surface of the pressing plate 643 will be close to the fixture plate, and the material-retrieving robot 641 can control the pressing plate 643 to rotate and adjust the position of the pressing plate 643. After the pressing plate 643 is close to the fixture plate, the ejection cylinder 653 controls the ejection block 655 to move up, and ejects the corresponding button on the fixture plate out of the fixture plate, and the button will then enter the groove 6431 on the bottom surface of the pressing plate 643. Due to the existence of the buffer spring 644, the pressing plate 643 will partially move up during the ejection process, so that the pressing plate 643 will not be damaged.

[0077] The two ejection mechanisms 65 are used for ejection operations of different keys. When one ejection mechanism 65 completes the ejection operation of four keys on two jig trays, the second transport mechanism 63 will transfer the jig tray to the transverse movement mechanism 66, which will control the jig tray to move horizontally through the cylinder, switch the jig tray to the position of another ejection mechanism 65, and then another second transport mechanism 63 will grab the jig tray and transfer it to the corresponding ejection mechanism 65 to complete the ejection operation of the remaining four keys of the two jig trays. Finally, the empty jig tray will be grabbed by the corresponding second transport mechanism 63 and transferred to the small-frame unloading synchronous belt 62 for storage.

[0078] After the material taking mechanism A 64 sucks the buttons of two different sizes, it places them on the products to be assembled on the corresponding jig plates 13 on the circular conveyor line 1, and presses the buttons down into the products to be assembled.

[0079] like Fig.16As shown, the assembled products after key assembly are transported by the circular conveyor line 1 to the key assembly unit 7. The key assembly unit 7 is composed of a feeding mechanism 71, an assembly mechanism 73, and a transfer mechanism A 72, wherein the feeding mechanism 71 is provided with two for feeding accessories that match the keys. The feeding mechanism 71 adopts a vibration feeding method. A primary visual positioning mechanism 74 is provided above the two feeding mechanisms 71 for positioning the accessories so that the transfer mechanism A 72 can grab the accessories.

[0080] The transplanting mechanism A 72 is composed of a transplanting robot and a gripping assembly, and the gripping assembly can grip two accessories at a time. A secondary visual positioning mechanism 75 is provided on one side of one of the feeding mechanisms 71 for secondary positioning of the accessories so that the transplanting mechanism A 72 can accurately place the accessories on the assembly mechanism 73.

[0081] refer to Fig.17 The assembly mechanism 73 is composed of a linear moving module 731, a lifting cylinder 732, a lifting block 734 and other components, wherein a mounting plate is provided on the linear moving module 731, and the lifting cylinder 732 is vertically fixed on the mounting plate. A slide plate 733 is provided on one side of the lifting cylinder 732, and the slide plate 733 is connected to the output end of the lifting cylinder 732. The shape of the slide plate 733 is similar to a "Y" shape. Two lifting blocks 734 are provided at the top of the Y-shaped slide plate 733. The top of each lifting block 734 protrudes upward to form two positioning parts, and the positioning parts are used to position the accessories. The transplanting mechanism A 72 will transfer the accessories to the top of the lifting block 734 and position them through the positioning parts. Then, the linear moving module 731 controls the accessories to move to the bottom of the corresponding fixture plate 13, and the lifting cylinder 732 controls the lifting block 734 to move upward to push the accessories into the product to be assembled.

[0082] After the accessories are assembled, the circular conveyor line 1 conveys the products to be assembled to the location of the large frame loading unit 8.

[0083] like Fig.18As shown, the large skeleton loading unit 8 is composed of modules such as a large skeleton loading synchronous belt 81, a large skeleton unloading synchronous belt 82, a material picking platform 83, a material picking mechanism B 84, and a transplanting and handling module 85. The large skeleton loading synchronous belt 81 and the large skeleton unloading synchronous belt 82 are arranged in parallel, one for loading the fixture tray and the other for unloading the fixture tray; there are two material picking platforms 83, which are located between the large skeleton loading synchronous belt 81 and the large skeleton unloading synchronous belt 82; the transplanting and handling module 85 spans over the large skeleton loading synchronous belt 81, the large skeleton unloading synchronous belt 82 and the two material picking platforms 83, and is used to grab the fixture tray loaded with accessories from the large skeleton loading synchronous belt 81 and transfer it to the corresponding material picking platform 83, and finally grab the empty fixture tray from the material picking platform 83 and transfer it to the large skeleton unloading synchronous belt 82 for storage.

[0084] The structures of the large frame loading synchronous belt 81 and the large frame unloading synchronous belt 82 are roughly similar to those of the small frame loading synchronous belt 61 and the small frame unloading synchronous belt 62. When the jig disc is transferred to the end of the synchronous belt, each time a jig disc is grabbed, the large frame loading synchronous belt 81 will lift the jig disc up one layer so that the transfer and handling module 85 can grab the jig disc. The transfer and handling module 85 is also controlled by the linear module to control the horizontal movement of the grabbing mechanism. The grabbing mechanism can be raised and lowered, and the opening and closing of the clamping claws are controlled by the cylinder to grab the jig disc.

[0085] like Fig.19 As shown, the material taking platform 83 is mainly composed of a support plate 831, a positioning plate 832, a lifting drive module 833, a drive motor 834, a push rod 835 and other components, wherein a support rod is provided at the bottom of the support plate 831 for supporting the entire platform. A motor fixing seat is provided at the bottom of the support plate 831 for installing the drive motor 834, the lifting drive module 833 is rotatably connected to the support plate 831 through a bearing, the lower end of the lifting drive module 833 is drivingly connected to the drive motor 834, and the upper end of the lifting drive module 833 is in a disc shape, and the upper surface of the disc has an upwardly protruding lifting portion 8331 on the circumference thereof for controlling the upward and downward movement of the push rod 835.

[0086] The bottom of the positioning plate 832 is fixed on the top of the support plate 831 through a support rod. Two pieces are provided on the positioning plate 832, which are used to position the two fixture plates respectively. Four push rods 835 are provided on each positioning plate 832, and the four push rods 835 are connected to the positioning plate 832 in an up-and-down sliding manner. A connecting piece is provided on the positioning plate 832, and a guide rod is provided at the other end of the connecting piece. The guide rod is connected to the positioning plate 832 in an up-and-down sliding manner, and the guide rod plays a guiding role, so that the push rod 835 will not deflect during the up-and-down movement of the push rod 835.

[0087] refer to Fig. 20A ball 837 is provided at the bottom of the push rod 835, and the ball 837 will contact the upper surface of the lifting drive module 833. When the driving motor 834 controls the lifting drive module 833 to rotate, the ball 837 will roll along the upper surface of the lifting drive module 833. When the ball 837 passes the position of the lifting part 8331, the push rod 835 will be lifted upward, thereby ejecting the accessories on the fixture plate. A positioning member 836 is provided at the top of the push rod 835 for positioning the accessories on the fixture plate.

[0088] Clamping plates 838 are provided on both sides of the positioning plate 832 . The two clamping plates 838 are controlled by a cylinder to clamp the fixture plate. The cylinder is installed and fixed at the bottom of the positioning plate 832 .

[0089] refer to Fig.19 , Fig.21 There are four light shielding sheets 839 evenly distributed around the circumference of the lifting drive module 833. At the same time, three photoelectric sensors 15 cooperating with the light shielding sheets 839 are arranged at corresponding positions on the support plate 831. The photoelectric sensors 15 and the light shielding sheets 839 can cooperate to detect the rotation angle of the lifting drive module 833, so as to identify whether all the accessories on the fixture plate have been removed.

[0090] The general structure of the picking mechanism B 84 is similar to that of the picking mechanism A 64, except that the bottom surface of the pressing plate 643 is a contoured surface, and its shape is adapted to the shape of the accessories on the fixture plate. The accessories are also sucked through the air holes, and then moved by the robot and pressed into the product to be assembled.

[0091] After the assembly of the accessories is completed, the next step is that the annular conveyor line 1 will convey the jig plate 13 to the location of the height detection mechanism 10 to detect whether each button on the product to be assembled is installed in place.

[0092] like Fig.25 As shown, the height detection mechanism 10 is mainly composed of a detection fixing plate 101, a reference plate 102, a pressing plate 643, a photoelectric sensor 15 and other components, wherein the detection fixing plate 101 is moved up and down by a cylinder control, the reference plate 102 and the pressing plate 643 are respectively located above and below the detection fixing plate 101 and connected by a guide rod, the guide rod and the detection fixing plate 101 are connected to slide up and down, and a buffer spring 644 is arranged on each guide rod to play a buffering role to prevent the pressing plate 643 from damaging the key. The photoelectric sensor 15 is arranged above the reference plate 102, and is used to detect the distance between the lower surface of the photoelectric sensor 15 and the upper surface of the reference plate 102.

[0093] A cavity is formed on the bottom surface of the pressing plate 643 that matches the shape of the product to be assembled. When the cylinder controls the pressing plate 643 to move downward, the lower surface of the pressing plate 643 will contact the product to be assembled, and the product to be assembled will be accommodated in the cavity. If a button on the product to be assembled is not installed in place, it will bulge upward, and the reference height of the button will be inconsistent with other buttons. At this time, the product to be assembled cannot be completely accommodated in the cavity, and the height of the reference plate 102 will change. The photoelectric sensor 15 can determine whether all buttons are installed in place by detecting this height change.

[0094] A positioning pin 103 is also provided on one side of the bottom of the detection fixing plate 101 to position the fixture plate 13 below so that the pressing plate 643 can accurately align with the product to be assembled below. After the detection is completed, the next step of assembly is continued. The annular conveyor line 1 will convey the fixture plate 13 to the position of the button feeding detection unit 9 to install the button.

[0095] like Fig. 22 As shown, the button feeding detection unit 9 is mainly composed of a tray feeding module 91, a top pressing mechanism 93, a position detection mechanism 94, a transplanting mechanism B 92, a top pressing mechanism 93, etc., wherein the tray feeding module 91 is used for feeding the button, and it has an upper and lower conveying plate 911, so that alternating feeding can be achieved. A tray is placed on the conveying plate 911, and there are acupuncture points on the tray for placing the button. The two-layer conveying plate 911 can slide, and after all the buttons on the upper conveying plate 911 are removed, the upper conveying plate 911 slides backward, and the lower conveying plate 911 can pass from under the upper conveying plate 911 to continue feeding the button, so that uninterrupted feeding of the button can be achieved.

[0096] The transfer mechanism controls the opening and closing of the clamping claws through the cylinder, and clamps the dial button and transfers it to the pressing mechanism 93. The pressing mechanism 93 can position the dial button. Then the cylinder controls the horizontal movement, and the dial button is transferred to the bottom of the product to be assembled on the fixture plate 13. Then the cylinder controls the upward movement of the dial button, and the dial button is pressed into the product to be assembled. Finally, the position detection mechanism 94 detects whether the dial button is installed in place.

[0097] like Fig.23 , Fig.24As shown, the position detection mechanism 94 is mainly composed of a detection mounting plate 941, a clamping plate 942, a detection rod 943, a photoelectric sensor 15, a contact head 944 and other components, wherein the detection mounting plate 941 is moved up and down by a cylinder control, the clamping plate 942 is located below the detection mounting plate 941 and is connected to the detection mounting plate 941 through a guide rod, the guide rod is connected to the detection mounting plate 941 by sliding up and down, and a buffer spring 644 is arranged on the guide rod, the buffer spring 644 is located between the detection mounting plate 941 and the clamping plate 942, and plays a buffering role to prevent the clamping plate 942 from crushing the product.

[0098] The contact head 944 is fixed to the bottom of the detection rod 943. The detection rod 943 is connected to the detection fixing plate 101 for sliding up and down. The detection rod 943 is also provided with a buffer spring 644. The buffer spring 644 is located between the detection mounting plate 941 and the contact head 944, and also plays a buffering role. There is a through hole in the middle of the clamping plate 942, and the detection rod 943 can move up and down through the through hole. The photoelectric sensor 15 is arranged just above the detection rod 943, and is used to detect the distance between the lower surface of the photoelectric sensor 15 and the upper surface of the detection rod 943.

[0099] A cavity matching the shape of the product is formed on the bottom surface of the clamping plate 942. The cylinder controls the clamping plate 942 to move downward, and the clamping plate 942 will press the product below, and the product will be accommodated in the cavity. At the same time, the bottom surface of the contact head 944 has a groove 6431 matching the shape of the dial button. The detection rod 943 will press the contact head 944 downward until the contact head 944 contacts the dial button, and the dial button is accommodated in the groove 6431. If the dial button is not installed in place, the detection rod 943 will rise and fall, and the photoelectric sensor 15 will detect the change in the distance between the detection rods 943, thereby judging whether the dial button is installed in place.

[0100] After the inspection is completed, the jig plate 13 loaded with the product will be transported by the circular conveyor line 1 to the positions of the laser engraving mechanism 11 and the coding mechanism 12 in sequence, and the product will be engraved, and all buttons will be laser engraved in the same way; then a QR code will be printed on the side of the product, and then the QR code will be scanned by the code scanning mechanism 17 to prevent duplicate QR codes. Finally, the circular conveyor line 1 will transport the product to the position of the transplanting and handling unit 2, and the qualified products will be unloaded, and the unqualified products will be clamped and transferred to the NG box 14 for storage. Example

[0101] like Figure 26-Figure 28As shown, the difference between Example 2 and Example 1 is that the structure of the flip unit 4 is different. In this embodiment, the flip unit 4 is mainly composed of a rotating shaft 16, a flip control plate 421, a flip drive mechanism 422, a deflection member 423, a clamping mechanism, a fixed plate, a bearing plate 425 and other components, wherein two bearing plates 425 are provided, which are respectively vertically fixed on both sides of the bottom of the fixed plate, and the rotating shaft 16 passes through the two bearing plates 425 in sequence and is rotatably connected to the bearing plates 425 through the bearing, wherein one end of the bearing is fixedly connected to the flip connection member 424, and the other end is fixedly connected to the deflection member 423, and the clamping mechanism is installed and fixed on the flip connection member 424, and when the deflection member 423 deflects, it will drive the rotating shaft to rotate, thereby driving the clamping mechanism to flip.

[0102] Two sliding blocks are arranged on the side of the bearing plate 425 away from the clamping mechanism, and the sliding blocks are fixedly connected to the bearing plate 425. A slide rail is slidably connected to the sliding block, and the slide rail is fixed on the flip control plate 421. A fixed block is also arranged on the flip control plate 421 for installing and fixing the flip drive mechanism 422.

[0103] In this embodiment, the flip driving mechanism 422 adopts a cylinder, the output end of the cylinder is connected to the connecting rod, and the other end of the connecting rod is hinged to the center of the flip control plate 421. The flip control plate 421 is driven by the cylinder to move linearly.

[0104] refer to Fig.29 A slide groove 4211 is provided on the flip control plate 421, and the distribution track of the slide groove 4211 is adapted to the deflection track of the deflection member 423. When the deflection member 423 deflects around the rotation axis 16, a roller 426 is rotatably connected to the other end of the deflection member 423 (i.e., the end away from the rotation axis 16), and the roller 426 is slidably connected to the slide groove 4211. When the flip control plate 421 moves, the roller 426 slides along the track of the slide groove 4211, thereby driving the deflection member 423 to deflect, and then driving the rotation axis 16 to rotate.

[0105] In this embodiment, the distribution trajectory of the slide groove 4211 is similar to a “V” shape, and the roller 426 and the V-shaped slide groove 4211 are clearance-matched, so that the movement trajectory of the roller 426 can be presented as an arc in the slide groove 4211.

[0106] In other technical solutions, the distribution track of the slide groove 4211 can be a semicircular arc, and the outer edge surface of the roller 426 can be close to the inner walls on both sides of the slide groove 4211, so that the roller 426 can slide completely along the distribution track of the slide groove 4211.

[0107] Through holes are provided at both ends of the deflection member 423, and each through hole has an opening, so the through hole has a certain degree of stretchability. The rotating shaft of the roller 426 and the rotating shaft 16 are respectively plugged into the two through holes, and the two ends of the rotating shaft 16 have a flat structure, and then the through holes are locked and locked by bolts, so as to fix the rotating shaft and the rotating shaft 16 to prevent the deflection member 423 from rotating with the rotating shaft and the rotating shaft 16.

[0108] Based on the same principle, a through hole is also provided on the flip connection member 424, and the other end of the rotating shaft 16 is locked and fixed to the flip connection member 424 in the same manner as described above.

[0109] like Fig. 27 As shown, the clamping mechanism is composed of a finger cylinder and two clamping claws, the two clamping claws are connected to the output end of the finger cylinder, and the finger cylinder can control the two clamping claws to open or close. The shapes of the opposite sides of the two clamping claws are adapted to the shape of the product, so that the product can be positioned.

[0110] refer to Fig.26 A mounting plate is provided above the fixed plate, and a lifting cylinder is vertically provided on the mounting plate. The output end of the lifting cylinder is connected to the fixed plate. When the clamping mechanism clamps the product on the fixture plate 13, the lifting cylinder lifts the product to a certain height, and then the flipping drive mechanism 422 drives the flipping control plate 421 to move, and the roller 426 cooperates with the slide groove 4211 to drive the deflection member 423 to deflect, thereby driving the product to rotate with the rotating shaft to flip the product.

[0111] The reason why the product needs to be raised to a certain height before flipping is to prevent the fixture under the product from interfering with the flipping of the product.

[0112] The track shape of the roller 426 when sliding in the slide groove 4211 is semicircular, so the flipping device can control the product to flip between 0-180°. When the roller 426 slides to the positions of the two ends of the slide groove 4211, it can stop sliding, which can ensure that the flipping angle of the product is 180° without worrying about the inaccurate flipping angle of the product, which will not affect the dispensing operation of the product.

[0113] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. An automatic assembly device for steering wheel accessories, comprising a ring conveyor line (1), on which a plurality of jig plates (13) for positioning products to be assembled are arranged, characterized in that: It also includes the following components which are arranged in sequence along the circumference of the annular conveyor line (1): A transfer unit (2) is used to transfer the products to be assembled, and a loading and unloading conveying device (22) for conveying the products to be assembled is provided below the transfer unit (2); A flipping unit (4) is used to flip the product to be assembled, and a front glue dispensing unit (5) and a back glue dispensing unit (3) are respectively provided on both sides of the flipping unit (4) for dispensing glue on the front and back sides of the product to be assembled; A small-sized skeleton loading unit (6), the small-sized skeleton loading unit (6) comprising a small-sized skeleton loading synchronous belt (61) for storing a jig tray carrying accessories A and lifting the jig tray upward layer by layer, a lifting mechanism (65) for lifting accessories A on the jig tray out of the jig tray, a transport mechanism for transferring the jig tray carrying accessories A from the small-sized skeleton loading synchronous belt (61) to the lifting mechanism (65), and a picking mechanism A (64) for sucking and transferring accessories A to a product to be assembled; A key assembly unit (7), the key assembly unit (7) comprising a feeding mechanism (71), an assembly mechanism (73) for pressing the accessories B onto a product to be assembled, and a transfer mechanism A (72) for transferring the accessories B on the feeding mechanism (71) to the assembly mechanism (73) one by one; A large-frame loading unit (8), the large-frame loading unit (8) comprising a large-frame loading synchronous belt (81) for storing a jig plate carrying accessories C, a material taking platform (83) for taking accessories C off the jig plate, and a material taking mechanism B (84) for sucking and placing the taken accessories C onto a product to be assembled on the jig plate (13); A button loading detection unit (9), the button loading detection unit (9) comprising a tray loading module (91) for conveying an accessory D, a pressing mechanism (93) for positioning the accessory D and pressing the accessory D onto a product to be assembled on a jig plate (13), a position detection mechanism (94) for detecting the position of the accessory D in the assembled product, and a transfer mechanism B (92) for transferring the accessory D on the tray loading module (91) to the pressing mechanism (93); The small-sized skeleton loading unit (6) further comprises a small-sized skeleton unloading synchronous belt (62) for storing an empty jig tray, and a transverse shift mechanism (66) arranged on the front side of the small-sized skeleton unloading synchronous belt (62) and the small-sized skeleton loading synchronous belt (61) for switching the position of the jig tray, and the ejecting mechanism (65), the conveying mechanism and the picking mechanism A (64) are each provided with two, the two ejecting mechanisms (65) respectively corresponding to the two ends of the transverse shift mechanism (66), the two conveying mechanisms are respectively arranged on one side of the small-sized skeleton unloading synchronous belt (62) and the small-sized skeleton loading synchronous belt (61), and the two picking mechanisms A (64) are respectively arranged on one side of the two ejecting mechanisms (65), and the jig tray loaded with the accessory A is transferred to the ejecting mechanism (65) by the conveying mechanism; The large-frame skeleton loading unit (8) also includes a large-frame skeleton unloading synchronous belt (82) for storing an empty fixture plate, a transplanting and handling module (85) spanning over the large-frame skeleton loading synchronous belt (81) and the large-frame skeleton unloading synchronous belt (82), and two material-retrieving platforms (83) are provided, both of which are located between the large-frame skeleton loading synchronous belt (81) and the large-frame skeleton unloading synchronous belt (82); The material taking platform (83) includes a support plate (831), a positioning plate (832) located above the support plate (831), a lifting drive module (833) rotatably connected to the support plate (831), a driving motor (834) driving the lifting drive module (833) to rotate, a push rod (835) located above the lifting drive module (833) and connected to the positioning plate (832) for sliding up and down, and two clamping plates (838) located on both sides of the positioning plate (832) and capable of moving toward each other. The top of the lifting drive module (833) has a protrusion in the circumferential direction, and the bottom of the push rod (835) is provided with a rolling ball (837) that cooperates with the protrusion. When the lifting drive module (833) rotates, the push rod (835) can be lifted upward by the protrusion.

2. The automatic assembly equipment for steering wheel accessories according to claim 1, characterized in that: The flipping unit (4) comprises two clamping flipping assemblies (41), wherein the clamping flipping assemblies (41) comprise a fixed bracket (411), a guide rail fixing plate (412) vertically fixed on the fixed bracket (411) and used for driving the guide rail fixing plate (412) to rise and fall, a bearing seat (414) slidably connected to the bottom of the guide rail fixing plate (412), a rotating shaft (16) rotatably connected to the bearing seat (414), a gear (418) and a cylinder connecting plate (415) respectively arranged at both ends of the rotating shaft (16), a clamping cylinder installed on the cylinder connecting plate (415), two clamping claws arranged on the clamping cylinder, a rack (419) arranged at the bottom of the fixed plate and meshing with the gear (418), and a flipping cylinder (413) used for driving the bearing seat (414) to move.

3. The automatic assembly equipment for steering wheel accessories according to claim 1, characterized in that: The flip unit (4) comprises a rotating shaft (16), a flip connecting member (424) fixedly connected to one end of the rotating shaft (16), a bearing plate (425) rotatably connected to the other end of the rotating shaft (16), a flip control plate (421) slidably arranged on one side of the bearing plate (425), a flip driving mechanism (422) for driving the flip control plate (421) to move, a deflection member (423) fixedly connected to one end of the rotating shaft (16) away from the flip connecting member (424), and a clamping mechanism fixedly arranged on the flip connecting member (424), wherein a slide groove (4211) for controlling the rotation of the rotating shaft (16) is provided on the flip control plate (421), the distribution track of the slide groove (4211) is adapted to the deflection track of the deflection member (423), and the end of the deflection member (423) away from the rotating shaft (16) is slidably connected to the slide groove (4211).

4. The automatic assembly equipment for steering wheel accessories according to any one of claims 2-3, characterized in that: The structures of the small-sized skeleton unloading synchronous belt (62) and the small-sized skeleton loading synchronous belt (61) are consistent. The small-sized skeleton loading synchronous belt (61) includes a synchronous belt body (611) and a lifting mechanism (612) arranged at the rear end of the synchronous belt body (611). Baffles (613) are arranged on both sides of the synchronous belt, and a material bin for storing the jig disc is formed between the two baffles (613). Limiting plates (614) are arranged on both sides of the end of the synchronous belt body (611) in the conveying direction, and the jig disc located between the two limiting plates (614) is lifted upward step by step by the lifting mechanism (612).

5. The automatic assembly equipment for steering wheel accessories according to any one of claims 2-3, characterized in that: The ejection mechanism (65) comprises a bearing plate (652), two pressing blocks (654) that can move toward each other, an ejection block (655) for ejecting the accessory A from the fixture plate, and an ejection cylinder (653) for driving the ejection block (655) to move upward, and a positioning block (658) for positioning the fixture plate is provided on the bearing plate (652).

6. The automatic assembly equipment for steering wheel accessories according to any one of claims 2-3, characterized in that: The assembly mechanism (73) includes a horizontally arranged linear motion module (731), a mounting plate arranged on the linear motion module (731), a lifting cylinder (732) vertically fixed on the mounting plate, a slide plate (733) installed on the lifting cylinder (732), and a lifting block (734) arranged on the top of the slide plate (733), wherein the top of the lifting block (734) protrudes upward to form a positioning portion for positioning the accessory B.

7. The automatic assembly equipment for steering wheel accessories according to any one of claims 2-3, characterized in that: The position detection mechanism (94) comprises a detection mounting plate (941) that can move up and down, a clamping plate (942) that is slidably connected to the detection mounting plate (941) up and down through a guide rod, a detection rod (943) that is slidably connected to the detection mounting plate (941) up and down, a contact head (944) disposed at the bottom of the detection rod (943), and a photoelectric sensor (15) located directly above the detection rod (943), wherein the bottom surface of the clamping plate (942) is formed with a cavity that matches the shape of the product to be assembled, and the bottom surface of the contact head (944) is formed with a groove (6431) that matches the shape of the accessory D, and the photoelectric sensor (15) is capable of measuring the change in distance between the upper surface of the detection rod (943) and the lower surface of the photoelectric sensor (15).

8. The automatic assembly equipment for steering wheel accessories according to any one of claims 2-3, characterized in that: A height detection mechanism (10) is provided between the large frame feeding unit (8) and the button feeding detection unit (9), and the height detection mechanism (10) comprises a detection fixing plate (101) that can move up and down, a reference plate (102) and a pressure plate (643) that are respectively located above and below the detection fixing plate (101) and connected to each other through a guide rod, and a photoelectric sensor (15) that is located above the reference plate (102), wherein the guide rod is slidably connected to the detection fixing plate (101) up and down, and the photoelectric sensor (15) can detect the distance between the upper surface of the reference plate (102) and the lower surface of the photoelectric sensor (15), and the bottom surface of the pressure plate (643) is formed with a cavity that matches the shape of the product to be assembled.

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