Combined automatic press fitting equipment for circular parts

Abstract

The application discloses a combined automatic press-fitting equipment for circular parts, which comprises a frame structure body composed of a press-fitting workbench, a left side frame, a right side frame and a frame beam body, a hydraulic cylinder fixed to the top of the frame beam body, and a press-fitting assembly and a polyurethane press disc connected with the hydraulic cylinder in sequence; the press-fitting assembly comprises a press-fitting base plate installed on the hydraulic cylinder, and an I-section pressure shell, a sensor installation partition plate and a II-section pressure shell are installed on the bottom of the press-fitting base plate from top to bottom; an I-section pressure sensor and a II-section pressure sensor are respectively installed in the I-section pressure shell and the II-section pressure shell, and the I-section pressure sensor and the II-section pressure sensor are fixed to the sensor installation partition plate; an I-section pressure rod is assembled at the bottom of the I-section pressure sensor, and a II-section pressure rod is assembled at the bottom of the II-section pressure sensor; and the I-section pressure rod and the II-section pressure rod are assembled with the polyurethane press disc; the application realizes automatic and efficient press-fitting of combined circular parts, guarantees the consistency of products and reduces the labor cost.

Description

Technical Field

[0001] This invention relates to the field of intelligent manufacturing technology, and in particular to an automatic pressing equipment for two or more combined circular automotive parts. Background Technology

[0002] New energy vehicles represent a new trend in automotive technology development, and the automotive components they use are primarily made of aluminum. With the continued rapid development of the automotive manufacturing industry, especially in fields such as new energy, new materials, and intelligent manufacturing, the emphasis on personalization has led to more diverse shapes for two- or three-piece, modular circular automotive components. This facilitates customization, resulting in wider applications, a broader market, and a richer application context.

[0003] Currently, most modular round automotive parts are modified aluminum alloy forged components, consisting of several parts such as a round rim, round spokes, and round bushings, which are tightened together and fixed with adhesive using specialized high-strength bolts. While these bolt-fitted round automotive parts can be matched and combined to create various styles and specifications, providing convenience for car owners who want to personalize their vehicles, they have disadvantages including complex manufacturing processes, high costs, and relatively high selling prices. Round automotive parts have high weight and inertia, making them heavy, and the complex manufacturing process makes them prone to deformation and cracking, resulting in poor dynamic balance and requiring high assembly standards. Furthermore, the use of high-strength bolts makes it difficult to ensure product consistency, leading to tightening defects. Currently, production is limited to a single product type, resulting in a slow production cycle and low efficiency, posing potential safety risks to vehicle safety and performance.

[0004] To completely eliminate potential vehicle safety risks, a production process has emerged that involves pressing two or three circular rim-shaped pieces and circular radial pieces together and then welding them into a single unit.

[0005] Currently, the pressing of modular round automotive parts is mostly done manually, using a hand hammer to press and squeeze, which is inefficient, produces a lot of waste, and makes it difficult to ensure product consistency. Summary of the Invention

[0006] To address the above problems, this invention proposes an automatic pressing device for modular circular components, used for the automatic pressing of modular circular components; the technical solution adopted is as follows:

[0007] A modular automatic pressing device for circular parts, characterized in that it comprises: a frame structure composed of a pressing worktable, a left frame, a right frame and a frame beam, a hydraulic cylinder fixed to the top of the frame beam, and a pressing assembly and a polyurethane pressing plate connected in sequence to the hydraulic cylinder.

[0008] The press-fit assembly includes: a press-fit base plate installed on the cylinder rod joint of the hydraulic cylinder; from top to bottom, the bottom of the press-fit base plate is sequentially equipped with a first-section pressure housing, a sensor mounting partition, and a second-section pressure housing; a first-section pressure sensor and a second-section pressure sensor are respectively installed in the first-section pressure housing and the second-section pressure housing, and both the first-section pressure sensor and the second-section pressure sensor are fixedly connected to the sensor mounting partition; a first-section pressure rod is assembled at the bottom of the first-section pressure sensor, and a second-section pressure rod is assembled at the bottom of the second-section pressure sensor; both the first-section pressure rod and the second-section pressure rod are assembled with a polyurethane pressure plate.

[0009] Furthermore, the pressure sensor in section I is a standard precision pressure sensor, while the pressure sensor in section II is a high precision pressure sensor.

[0010] Furthermore, the press-fit assembly also includes: a press-fit housing installed at the bottom of the II-section pressure housing; press-fit rods I, II, III, and IV installed inside the press-fit housing; and press-fit buffer springs I, II, III, and IV, which are respectively assembled with press-fit rods I, II, III, and IV; all press-fit buffer springs I, II, III, and IV are assembled with polyurethane pressure plates; and both the I-section pressure rod and the II-section pressure rod are slidably installed through the interior of the press-fit housing.

[0011] Furthermore, the pressing worktable includes: a support frame structure, a worktable panel installed on the upper end of the support frame structure, a worktable pressure plate installed on the worktable panel by a table plate buffer spring, a number of contour grippers evenly distributed around the center of the worktable pressure plate and installed through the worktable panel, and a contour gripper linkage assembly connected to the bottom surface of the worktable pressure plate and used to drive the contour grippers to move synchronously.

[0012] Furthermore, the contour gripper linkage assembly includes: a pressure plate central shaft, a control disk, and a conical pressure sleeve installed sequentially from top to bottom on the bottom of the worktable pressure plate; a plurality of gripper base plates installed on the bottom of the worktable panel and connected to the corresponding contour gripper pin shaft; a plurality of gripper levers installed on the lower end of the corresponding contour gripper and in contact with the control disk or the conical pressure sleeve; and a gripper spring installed between the contour gripper and the gripper base plate.

[0013] Furthermore, it also includes a frame back plate, which is mounted on the frame structure; the press-fit assembly further includes a press-fit back plate slidably mounted on the frame back plate, and the press-fit substrate is mounted on the press-fit back plate.

[0014] Furthermore, it also includes a clamping reinforcement assembly, which includes: a linkage plate installed on the lower side of the press-fit back plate; a wedge connecting shaft and a main shaft wedge installed from top to bottom at the bottom of the conical press sleeve; a push assembly installed inside the support frame structure; a rotating arm wedge with one end installed to the output end of the push assembly and the other end cooperating with the main shaft wedge in parallel with the wedge inclined surface; and a transmission assembly with one end connected to the linkage plate and the other end connected to the input end of the push assembly.

[0015] Furthermore, the transmission assembly includes: a through-hole on the back plate of the frame, a pressure connecting guide sleeve that passes through the through-hole and connects to the linkage plate, and a pressure connecting rod that is connected to the pressure connecting guide sleeve at one end via a guide sleeve buffer spring and connected to the input end of the push assembly at the other end.

[0016] Furthermore, the pushing component is a scissor-type telescopic mechanism.

[0017] Furthermore, a frame base plate is installed at the bottom of the pressing workbench.

[0018] Furthermore, a logistics roller conveyor is also installed on the pressing worktable.

[0019] Furthermore, a protective cover is installed on the outside of the frame structure and the logistics roller conveyor, and a through-beam safety light curtain is installed on the protective cover.

[0020] Because the present invention adopts the above-described technical solution, the present invention has the following advantages:

[0021] 1. This invention achieves automated and efficient pressing of modular circular automotive parts through the coordinated design of the frame structure, hydraulic cylinder, and pressing components. This not only ensures product consistency and improves yield, but also significantly reduces labor costs.

[0022] 2. By designing a clamping and reinforcing component, this invention further eliminates the phenomenon of force deviation in circular rim-shaped workpieces during press-fitting. Attached Figure Description

[0023] Figure 1-2 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of the present invention without the press-fitting assembly, polyurethane pressure plate, and aluminum profile protective cover.

[0025] Figure 4 This is a structural diagram of the present invention with the left frame, right frame, frame beams and frame back plate removed.

[0026] Figure 5 This is an exploded structural diagram of the press-fit assembly of the present invention.

[0027] Figure 6 For the present invention Figure 5 A magnified structural diagram of point A in the middle.

[0028] Figure 7 This is a schematic diagram of the internal structure of the press-fitting workbench of the present invention.

[0029] Figure 8 This is a schematic diagram of the pressing action of the present invention.

[0030] Icon labels:

[0031] 1-Frame base plate;

[0032] 2-Pressure fitting worktable;

[0033] 201-Front table upright plate; 202-Rear table upright plate; 203-Lower left protruding tenon; 204-Lower right protruding tenon; 205-Workbench panel; 206-Workbench pressure plate; 207-Contouring gripper; 208-Pressure plate center shaft; 209-Control disc; 210-Conical pressure sleeve; 211-Gripper base plate; 212-Gripper lever; 213-Gripper spring; 214-I-Center rotating arm; 215-II-Center rotating arm; 216-I-Connecting support arm; 217-II-Connecting support arm; 218-Wedge block connecting shaft; 219-Main spindle wedge block; 220-Rotating arm wedge block;

[0034] 3-Left side frame;

[0035] 301 - Left frame substrate; 302 - Left frame upright plate;

[0036] 4-Right side frame;

[0037] 401 - Right frame substrate; 402 - Right frame upright plate;

[0038] 5-Frame beams;

[0039] 501 - Front upright plate of beam; 502 - Rear upright plate of beam; 503 - Upper left tenon; 504 - Upper right tenon; 505 - Bottom plate of beam;

[0040] 6-Frame back panel;

[0041] 601 - Left linear guide rail; 602 - Right linear guide rail; 603 - Proximity switch slide rail; 604 - Through-hole; 605 - Pressure connecting guide sleeve; 606 - Pressure connecting rod;

[0042] 7-Pressure fitting assembly;

[0043] 701-Pressure-fit backplate; 702-Linkage plate; 703-Left I guide rail slider; 704-Left II guide rail slider; 705-Right I guide rail slider; 706-Right II guide rail slider; 707-Pressure-fit base plate; 708-Section I pressure housing; 709-Section II pressure housing; 710-Pressure-fit housing; 711-Section I pressure rod; 712-Section II pressure rod; 713-Section I pressure buffer spring; 714-Section II pressure buffer spring; 715-Section III pressure buffer spring; 716-Section IV pressure buffer spring; 717-Section I pressure rod; 718-Section II pressure rod; 719-Section III pressure rod; 720-Section IV pressure rod; 721-Section I pressure sensor; 722-Sensor mounting partition; 723-Section II pressure sensor;

[0044] 8-Hydraulic cylinder;

[0045] 801-Cylinder rod connector;

[0046] 9-Polyurethane pressure plate;

[0047] 10-Aluminum profile protective cover;

[0048] 11-Logistics roller conveyor. Detailed Implementation

[0049] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention; however, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0050] In the description of this invention, it should be noted that the terms "upper", "lower", "in", "out", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention. Example:

[0051] This embodiment provides a combined circular component pressing device for connecting two or more combined circular components by pressing. Before automatic pressing, the circular rim is first placed in a heating and holding furnace, heated to 250°C, and then kept at that temperature to ensure that the surface temperature of the circular rim to be pressed is not lower than 200°C after leaving the heating and holding furnace. The circular rim is in a state of thermal expansion to facilitate the smooth pressing of the circular rim.

[0052] like Figures 1-2 The figure shows a schematic diagram of the overall structure of a combined circular component pressing device.

[0053] It mainly includes: frame base plate 1, pressing workbench 2, left frame 3, right frame 4, frame beam 5, frame back plate 6, pressing assembly 7, hydraulic cylinder 8, polyurethane pressing plate 9, aluminum profile protective cover 10, and logistics roller conveyor 11.

[0054] The frame base plate 1 is fixed to the ground by multiple height-adjustable base bolts, and the frame base plate 1 is kept horizontal by adjusting the height-adjustable base bolts.

[0055] The press-fitting workbench 2 is fixed to the frame base plate 1 by multiple high-strength bolts; a left frame 3 is installed on the left side of the press-fitting workbench 2, and a right frame 4 is installed on the right side; the frame beam 5 is connected to the upper end of the left frame 3 and the right frame 4 by multiple high-strength bolts, thus forming a frame structure; the frame back plate 6 is installed on the back of the frame structure by multiple bolts; the complete frame structure can be used to strengthen the frame structure against bidirectional or multidirectional lateral forces, meet the safety and reliability of the hydraulic system under load, and meet the press-fitting pressure level and performance requirements required under specific working conditions.

[0056] The frame back plate 6 has a through slot 604. The pressure connecting guide sleeve 605 passes through the through slot 604 and is connected to the linkage plate 702 on the press-fit assembly 7. The pressure connecting guide sleeve 605 is connected to the pressure connecting rod 606 through the guide sleeve buffer spring (see reference). Figures 2-5 ).

[0057] A polyurethane pressure plate 9 is fixedly installed below the pressing assembly 7; the polyurethane pressure plate 9 has excellent moderate softness and hardness and abrasion resistance, and will not cause surface scratches on the circular rim or circular web.

[0058] The hydraulic cylinder 8 is installed and fixed on the frame beam 5, and the hydraulic cylinder 8 is connected to the press assembly 7 through the cylinder rod joint 801.

[0059] A logistics roller conveyor 11 is also installed on the frame base plate 1. The inlet of the logistics roller conveyor 11 is parallel to and connected to the pressing workbench 2, and the outlet of the logistics roller conveyor 11 is parallel to and connected to the logistics roller conveyor inside the production workshop.

[0060] On the outside of this type of combined circular component pressing equipment, an aluminum profile protective cover 10 is custom-installed according to the shape and size of the equipment; the aluminum profile protective cover 10 is equipped with a through-beam safety light grid to prevent personnel from accidentally entering the dangerous area, and plays a safety protection role when the equipment is running, thereby avoiding safety accidents; this can improve the safety of the working environment and the continuity of production, and improve production efficiency.

[0061] This type of combined circular component pressing equipment is also equipped with an electrical control cabinet, a touch screen, a hydraulic pump station, and hydraulic pipelines.

[0062] like Figure 3 The diagram shows a structural schematic of a combined circular component pressing device, which removes the pressing assembly, polyurethane pressing plate, and aluminum profile protective cover.

[0063] More specifically, the press-fitting workbench 2 is a box-type structural component composed of a support frame structure and a workbench panel 205. Specifically, it is a stable box-type structural component consisting of a front upright plate 201, a rear upright plate 202, two left and right side plates of the workbench, and the workbench panel 205. To reduce the weight of the equipment and facilitate the internal welding of the connecting plates of this box-type structural component, through holes are provided on both the front upright plate 201 and the rear upright plate 202. To enhance the stability of the equipment frame structure connection, raised left lower tenon 203 and right lower tenon 204 are designed at corresponding positions on the front upright plate 201, the rear upright plate 202, and the two left and right side plates of the workbench to enhance the load-bearing strength of the workbench panel 205 and improve the compressive rigidity of the plate.

[0064] The frame beam 5 is a stable box-type structural member composed of a front beam plate 501, a rear beam plate 502, two side beam plates, and a bottom beam plate 505. At the corresponding positions of the front beam plate 501 and the rear beam plate 502, there are also raised left upper tenon 503 and right upper tenon 504. The hydraulic cylinder 8 is installed and fixed on the bottom beam plate 505 by multiple high-strength bolts.

[0065] The left frame 3 is a frame structure composed of a left frame base plate 301 and two left frame upright plates 302 welded to the vertical surface of the left frame base plate 301; a groove is designed at the lower end of the left frame base plate 301 to cooperate with the raised lower left tenon 203; a groove is designed at the upper end of the left frame base plate 301 to cooperate with the raised upper left tenon 503.

[0066] The right frame 4 is a frame structure consisting of a right frame base plate 401 and two right frame upright plates 402 welded to the vertical surface of the right frame base plate 401; a groove is designed at the lower end of the right frame base plate 401 to cooperate with the protruding lower right tenon 204; a groove is designed at the upper end of the right frame base plate 401 to cooperate with the protruding upper right tenon 504.

[0067] When the pressing workbench 2, left frame 3, right frame 4, and frame beam 5 are connected by multiple high-strength bolts to form a frame structure, the upper and lower grooves of the left frame base plate 301 are tightly engaged with the lower left protruding tenon 203 and the upper left protruding tenon 503, respectively; the upper and lower grooves of the right frame base plate 401 are tightly engaged with the lower right protruding tenon 204 and the upper right protruding tenon 504, respectively. The frame tenon structure provided in this embodiment can enable the frame structure to withstand a large hydraulic load. During the pressing process, the tight connection of the tenon structure absorbs deformation energy and reduces the lateral shear force of the high-strength bolts, making the frame structure more stable.

[0068] To facilitate equipment installation and handling, through-holes are provided on both the left frame 3 and the right frame 4.

[0069] The frame back plate 6 is installed on the back of the frame structure by multiple bolts; the frame back plate 6 is equipped with a left linear guide rail 601 and a right linear guide rail 602; the frame back plate 6 is also equipped with a proximity switch slide rail 603 and multiple upper and lower limit proximity switches to prevent the pressing assembly 7 from exceeding the safe stroke when the cylinder rod of the hydraulic cylinder 8 extends.

[0070] The logistics roller conveyor 11 consists of a roller conveyor motor 112 driving multiple rubber-sheathed transfer rollers 111 via sprockets and chains, and a roller conveyor frame 113. The rubber-sheathed transfer rollers 111 are made of high-quality rubber material, possessing strong heat resistance and wear resistance. They maintain a smooth surface during long-term operation, have an anti-slip treatment to prevent wear, and exhibit impact resistance and vibration reduction characteristics. This ensures that the assembled circular components, after pressing, continuously reduce temperature during the logistics process, preventing damage from impacts and improving product yield.

[0071] Multiple sets of through-beam photoelectric switches are installed in the logistics roller conveyor 11. When the through-beam photoelectric switches continuously detect the blocking signal, the roller conveyor motor 112 rotates, which drives multiple rubber-sheathed transfer rollers 111 to rotate through the sprocket chain to carry out logistics conveying.

[0072] like Figure 4 , Figure 5 As shown, a layout diagram and exploded view of the internal structure of a combined circular component pressing device are provided; Figure 6 As shown, Figure 5 Enlarged view of point A in the middle.

[0073] The press-fit assembly 7 mainly includes: a press-fit back plate 701, a linkage plate 702, a left I guide rail slider 703, a left II guide rail slider 704, a right I guide rail slider 705, a right II guide rail slider 706, a press-fit base plate 707, a first-section pressure housing 708, a second-section pressure housing 709, a press-fit housing 710, a first-section pressure rod 711, a second-section pressure rod 712, a first-section press-fit buffer spring 713, a second-section press-fit buffer spring 714, a third-section press-fit buffer spring 715, a fourth-section press-fit buffer spring 716, a first-section press-fit rod 717, a second-section press-fit rod 718, a third-section press-fit rod 719, a fourth-section press-fit rod 720, a first-section pressure sensor 721, a sensor mounting partition 722, a second-section pressure sensor 723, and a polyurethane pressure plate 9.

[0074] The back of the press-fit back plate 701 is equipped with a left I guide rail slider 703, a left II guide rail slider 704, a right I guide rail slider 705, and a right II guide rail slider 706; wherein, the left I guide rail slider 703 and the left II guide rail slider 704 cooperate with the left linear guide rail 601 installed on the frame back plate 6, and the right I guide rail slider 705 and the right II guide rail slider 706 cooperate with the right linear guide rail 602 installed on the frame back plate 6.

[0075] A linkage plate 702 is installed on the lower side of the press-fit back plate 701; a press-fit base plate 707 is installed on the front side of the press-fit back plate 701, and a connecting groove for a cylinder rod connector 801 is provided on the top of the press-fit base plate 707, so that the flat shoulder of the cylinder rod connector 801 is embedded in the connecting groove; the cylinder rod connector 801 is threadedly connected to the cylinder rod end of the hydraulic cylinder 8.

[0076] The bottom of the press-fit base plate 707 is sequentially fitted with a pressure housing section I 708, a pressure housing section II 709, and a press-fit housing 710 from top to bottom.

[0077] Pressure sensor 721 and pressure sensor 723 are respectively installed inside pressure housing 708 and pressure housing 709; sensor mounting partition 722 is installed between pressure housing 708 and pressure housing 709; pressure rod 717, pressure rod 718, pressure rod 719 and pressure rod 720 are installed inside pressure housing 710 (see reference). Figure 5 , Figure 6 ).

[0078] Among them, the first-stage pressure sensor 721 is assembled with the first-stage pressure rod 711, and the second-stage pressure sensor 723 is assembled with the second-stage pressure rod 712; both the first-stage pressure rod 711 and the second-stage pressure rod 712 are slidably installed inside the press-fit housing 710.

[0079] I. Press-fit rod 717 is assembled with I. Press-fit buffer spring 713; II. Press-fit rod 718 is assembled with II. Press-fit buffer spring 714; III. Press-fit rod 719 is assembled with III. Press-fit buffer spring 715; IV. Press-fit rod 720 is assembled with IV. Press-fit buffer spring 716.

[0080] Finally, the pressure bar 711 (section I), pressure bar 712 (section II), press-fit buffer spring 713 (section I), press-fit buffer spring 714 (section II), press-fit buffer spring 715 (section III), and press-fit buffer spring 716 (section IV) are assembled together with the polyurethane pressure plate 9.

[0081] The extension and retraction of the hydraulic cylinder 8 rod drive the pressing base plate 707, the first-stage pressure housing 708, the second-stage pressure housing 709, the pressing housing 710, and the polyurethane pressure plate 9 to move up and down along the left linear guide rail 601 and the right linear guide rail 602.

[0082] The pressure sensors 721 (Section I) and 723 (Section II) have different detection accuracies. 721 (Section I) is a standard-precision pressure sensor, while 723 (Section II) is a high-precision pressure sensor.

[0083] The pressure sensor 721 (section I) and the pressure sensor 723 (section II) are fixedly connected to the sensor mounting plate 722 using bolts.

[0084] In this embodiment, the pressure sensor 721 of section I and the pressure sensor 723 of section II are connected to the pressure housing 708 of section I and the pressure housing 709 of section II in a staggered fixed position. In this way, the arrangement space can be significantly saved and the necessary external dimensions of the pressure housing 708 of section I, the pressure housing 709 of section II and the press housing 710 can be reduced.

[0085] Explanation: If pressure sensor 721 (section I) and pressure sensor 723 (section II) are installed side by side according to conventional practice, the side-by-side width of pressure sensor 721 and pressure sensor 723 must be met. This will inevitably increase the width of pressure housing 708 (section I) and pressure housing 709 (section II), thereby affecting the width of pressure housing 710, and even increasing the width of mounting pressure base plate 707, thus increasing the overall width of the equipment.

[0086] The pressure sensor 721 (section I) and pressure sensor 723 (section II) are connected to the pressure housing 708 (section I) and pressure housing 709 (section II) and installed in a staggered manner. The pressure sensor 723 (section II) is installed at the lower end of the pressure sensor 721 (section I), which minimizes the side-by-side width of the pressure sensor 721 (section I) and pressure sensor 723 (section II) and saves space.

[0087] The upper end of the first-section pressure rod 711 rests against the first-section pressure sensor 721 and remains in close contact; the upper end of the second-section pressure rod 712 rests against the second-section pressure sensor 723 and remains in close contact.

[0088] Polyurethane pressure plates 9 are installed at the lower ends of pressure rod I 711 and pressure rod II 712.

[0089] When the polyurethane pressure plate 9 presses down on the combined circular component, the resulting reaction force will be transmitted to the first-stage pressure sensor 721 through the first-stage pressure rod 711 and to the second-stage pressure sensor 723 through the second-stage pressure rod 712.

[0090] Meanwhile, the I pressure buffer spring 713, II pressure buffer spring 714, III pressure buffer spring 715, and IV pressure buffer spring 716 installed on the polyurethane pressure plate 9 cooperate with the I pressure rod 717, II pressure rod 718, III pressure rod 719, and IV pressure rod 720 to ensure that the polyurethane pressure plate 9 is subjected to uniform force and will not be tilted, thus ensuring the pressure quality.

[0091] like Figure 7 The figure shows the internal structure of a press-fitting workbench for a combined circular component press-fitting equipment.

[0092] The action mechanism in the press table 2 includes: a table pressure plate 206, six contour grippers 207, a pressure plate central shaft 208, a control disc 209, a conical pressure sleeve 210, six gripper base plates 211, six gripper levers 212, six gripper springs 213, a push assembly, a wedge connecting shaft 218, a main shaft wedge 219, and a rotating arm wedge 220; wherein, the push assembly includes a central rotating arm 214, a central rotating arm 215, a connecting support arm 216, and a connecting support arm 217.

[0093] Make a recessed hole on the workbench panel 205 that is slightly larger than the diameter of the workbench pressure plate 206. The thickness of the recessed hole is 3 / 4 of the thickness of the workbench panel 205. Make a through hole at the center point of the recessed hole on the workbench panel 205 and insert a guide bushing.

[0094] The bottom of the worktable pressure plate 206 is connected to the pressure plate central shaft 208, and a table plate buffer spring is installed on the pressure plate central shaft 208. The pressure plate central shaft 208 passes through the guide bushing and is connected to the control disc 209 and the tapered pressure sleeve 210. The table plate buffer spring is installed between the countersunk hole of the worktable panel 205 and the worktable pressure plate 206.

[0095] The contour gripper 207 and the gripper base plate 211 are designed with through holes at corresponding positions, and are connected by inserting pins; the lower end of the contour gripper 207 is connected to the gripper lever 212; the contour gripper 207 and the gripper base plate 211 are designed with spring positioning bosses at corresponding positions, and the gripper spring 213 is mounted on the spring positioning boss.

[0096] During the pressing process of the worktable pressure plate 206, the conical pressure sleeve 210 is first tangent to the rounded corner of the gripper lever 212 to minimize frictional resistance. As the conical pressure sleeve 210 descends, the angle of the gripper lever 212 tends to be horizontal. Then, the control disc 209 contacts the upper plane of the gripper lever 212 to maximize the force-bearing area of ​​the gripper lever 212. The action of pressing down the gripper lever 212 causes the contour gripper 207 to rotate inward around the pin hole on the gripper base plate 211. At the same time, the gripper spring 213 is compressed.

[0097] When the worktable pressure plate 206 is not subjected to external force, the table plate buffer spring naturally relaxes, and the control disc 209 and the conical pressure sleeve 210 both release the downward pressure claw lever 212. Under the action of the claw spring 213, the contour claw 207 rotates outward around the pin hole on the claw base plate 211.

[0098] The six sets of contour gripper structures are composed of six contour gripper jaws 207, six gripper base plates 211, six gripper levers 212, and six gripper springs 213. They are evenly distributed on the worktable panel 205 with the center of the worktable pressure plate 206 as the center point.

[0099] In addition, a layer of polyurethane board of the same material as polyurethane pressure plate 9 is laid on the surface of the worktable pressure plate 206 and the contour gripper 207. This is to ensure that the contact surface of the circular rim to be pressed will not be damaged by bumps, effectively improving the yield of modular circular parts.

[0100] A pivot pin hole is designed at the center point of I center rotating arm 214 and II center rotating arm 215. Connecting pin holes are designed at both ends of I center rotating arm 214, II center rotating arm 215, I connecting support arm 216 and II connecting support arm 217.

[0101] Center arm 214 and center arm 215 are installed in a scissor configuration. The pivot pin holes of center arm 214 and center arm 215 are aligned and connected by pivot pins. The front end of center arm 214 is connected to the rear end of connecting arm 217 via pivot pins, and the rear end of center arm 214 is connected to pressure connecting rod 606 via pivot pins. The front end of center arm 215 is connected to the rear end of connecting arm 216 via pivot pins, and the rear end of center arm 215 is connected to arm base via pivot pins. Arm base is connected to workbench base plate.

[0102] The front connecting pin holes of I connecting arm 216 and II connecting arm 217 are concentrically fitted, and are connected to the swing arm buffer spring and the swing arm wedge block 220 through the shaft pin.

[0103] A wedge coupling 218 is installed below the tapered pressure sleeve 210. The wedge coupling 218 is connected to the main shaft wedge 219. The main shaft wedge 219 and the rotating arm wedge 220 are in parallel fit with the wedge inclined surface.

[0104] During the downward pressing of the pressure connecting rod 606, it drives the I center rotating arm 214 and the II center rotating arm 215 to achieve the scissor opening and closing action, thereby further driving the I connecting support arm 216 and the II connecting support arm 217 to achieve the motion characteristics of the four-bar linkage, so that the rotating arm wedge block 220 extends in the horizontal direction and moves smoothly.

[0105] The wedge-shaped blocks of the main spindle wedge 219 and the rotating arm wedge 220 are clamped together by the inclined surface, causing the main spindle wedge 219 to move vertically downward, thereby driving the wedge connecting shaft 218, the conical pressure sleeve 210, and the control disc 209 to move downward together, ultimately causing the six sets of contour gripper structures to clamp inward with the center point of the worktable pressure plate 206.

[0106] like Figure 8 The diagram shows a pressing action of a combined circular component pressing device.

[0107] First, the circular rim is placed in a heating and holding furnace, heated and held at that temperature to ensure the surface temperature of the rim is not lower than 200℃. Parameters such as hydraulic pressure, cylinder pressure-stroke curve, and cylinder rod stroke are set using a matching electrical control cabinet, touch screen, and hydraulic pump station.

[0108] Place the preheated circular rim onto the workbench plate 206 of the pressing workbench 2, place the circular web to be pressed on top of the preheated circular rim, and the operator should exit the safety detection range of the aluminum profile protective cover 10 and the safety light curtain, and press the start button on the electrical control cabinet.

[0109] Under the pressure of its own weight, the table buffer spring is compressed, the worktable pressure plate 206 descends, driving the pressure plate central shaft 208, control disc 209, and conical pressure sleeve 210 to press down. The six gripper levers 212 move simultaneously, causing the six contour grippers 207 to tighten inwards at the same time, automatically locking the circular rim body and realizing automatic centering (the circular rim body part can usually be shared; different styles and sizes of circular rim bodies can be replaced to change different shapes, which is very convenient).

[0110] Next, the cylinder rod of the hydraulic cylinder 8 extends, driving the linkage plate 702 installed below the press-fit back plate 701, the press-fit base plate 707 installed above the press-fit back plate 701, and the first-section pressure housing 708, the second-section pressure housing 709, the press-fit housing 710, and the polyurethane pressure plate 9 to move downward along the left linear guide rail 601 and the right linear guide rail 602.

[0111] At the same time, the linkage plate 702 drives the pressure connecting guide sleeve 605, as well as the guide sleeve buffer spring and the pressure connecting rod 606, to move downward.

[0112] As the polyurethane pressure plate 9 gradually approaches the circular body, the pressure-fitting buffer springs 713, 714, 715, and 716 installed on the polyurethane pressure plate 9 are gradually compressed. The pressure-fitting rods 717, 718, 719, and 720 installed inside the pressure-fitting buffer springs are balanced under the constraint of the inner hole of the pressure-fitting housing 710, ensuring that the polyurethane pressure plate 9 always fits against the circular body in contact, maintains a horizontal state, and is subjected to uniform force.

[0113] At the same time, the pressure connecting rod 606 presses down, driving the I center rotating arm 214 and II center rotating arm 215 to perform scissor opening and closing actions, thereby further driving the I connecting support arm 216 and II connecting support arm 217 to move, causing the rotating arm wedge block 220 to extend horizontally. The wedge block 220 and the main shaft wedge block 219 are squeezed together by the wedge-shaped block of the rotating arm wedge block 220, causing the main shaft wedge block 219 to move vertically downward, thereby driving the wedge block connecting shaft 218, the conical pressure sleeve 210, and the control disc 209 to move downward together. Finally, the six sets of contour gripper structures are clamped inward with the center point of the worktable pressure plate 206. The six sets of contour gripper structures are clamped simultaneously, fundamentally preventing the phenomenon of force deviation of the circular rim-shaped workpiece during the press-fitting process.

[0114] During the pressing process, the reaction force generated by the downward pressing is transmitted and fed back to the pressure sensor 721 and the pressure sensor 723 in a timely manner through the pressure rod 711 and pressure rod 712 installed on the polyurethane pressure plate 9. This enables real-time monitoring of the pressing pressure and the downward stroke, and real-time comparison of the touch screen setting value with the pressing process value and the final verification value to determine whether the pressing is qualified and ensure the pressing quality.

[0115] Under the action of hydraulic cylinder 8, polyurethane pressure plate 9 continues to press down, completely pressing the circular body into the circular rim body. The edges of the circular body and the circular rim body overlap and become one. At this time, the downward pressure of pressure connecting rod 606 is absorbed by the platform buffer spring, guide sleeve buffer spring, and rotating arm buffer spring. At the same time, the I-segment pressure sensor 721 detects whether the I-segment pressure is properly pressed in. After the value detected by the I-segment pressure sensor 721 is consistent with the value set on the touch screen, the next action is performed; otherwise, the equipment alarms.

[0116] When the value detected by the pressure sensor 721 in the first stage is qualified, the polyurethane pressure plate 9 continues to press down under the action of the hydraulic cylinder 8. At this time, the circular body has been completely pressed into the interior of the circular rim, and the edges of the circular body and the circular rim overlap. After the second pressurization, the circular body and the circular rim form a whole and generate a reaction force. The high-precision pressure rod 712 in the second stage transmits the reaction force generated by the downward pressing to the pressure sensor 723 in a timely manner. When the detected values ​​all reach the set values, the cylinder rod of the hydraulic cylinder 8 retracts, driving the linkage plate 702, the pressing base plate 707, the pressure housing 708 in the first stage, the pressure housing 709 in the second stage, the pressing housing 710, and the polyurethane pressure plate 9 to move upward along the left linear guide rail 601 and the right linear guide rail 602 to complete the pressing action.

[0117] The rise of the linkage plate 702 further drives the pressure connecting guide sleeve 605, the guide sleeve buffer spring, and the pressure connecting rod 606 to move upward, driving the I center rotating arm 214 and the II center rotating arm 215 to perform scissor opening and closing actions, thereby further driving the I connecting support arm 216 and the II connecting support arm 217 to move, causing the rotating arm wedge block 220 to retract in the horizontal direction, and the wedge block 220 to disengage from the wedge-shaped block of the main shaft wedge block 219.

[0118] After the pressing action is completed, the pressing equipment stops pressing. The operator can easily lift and remove the assembled circular component. When the worktable pressure plate 206 is not subjected to external force, the plate buffer spring naturally relaxes. The control disc 209 and the conical pressure sleeve 210 both release the downward pressing claw lever 212. Under the action of the claw spring 213, the contouring claw 207 rotates outward around the pin hole on the claw base plate 211, and the six sets of contouring claw structures automatically open.

[0119] The operator pushes the assembled circular component into the logistics roller conveyor 11. The logistics roller conveyor 11 is equipped with multiple sets of through-beam photoelectric switches. When the through-beam photoelectric switches continuously detect the blocking signal, the roller conveyor motor 112 rotates, which drives multiple rubber-sheathed transfer rollers 111 to rotate through the sprocket chain, thus carrying out the logistics transportation of the assembled circular component.

[0120] For the proposed technical solution, there are alternative solutions, such as using a hydraulic station or hydraulic cylinder to replace hydraulic cylinder 8 as the pressure cylinder, using other forms of table or plate structure to replace press workbench 2, using other forms of press plate mold to replace polyurethane press plate 9, using other forms of linkage device to replace central rotating arms 214, 215 and connecting arms 216, 217, using other forms of press plate conical sleeve to replace control disc 209 and conical press sleeve 210, and using other forms of gripper structure to replace contour gripper 207, gripper base plate 211, gripper lever 212, gripper spring 213, etc., all of which are within the protection scope of this invention.

Claims

1. A combined automatic pressing device for circular components, characterized in that, include: A frame structure is composed of a press-fitting workbench (2), a left frame (3), a right frame (4) and a frame beam (5), a hydraulic cylinder (8) fixed to the top of the frame beam (5), and a press-fitting assembly (7) and a polyurethane pressure plate (9) connected in sequence to the hydraulic cylinder (8); the press-fitting assembly (7) includes a press-fitting base plate (707) installed on the cylinder rod joint (801) of the hydraulic cylinder (8), and the bottom of the press-fitting base plate (707) is sequentially equipped with a pressure housing section I (708), a sensor mounting partition plate (722) and a pressure housing section II (709) from top to bottom; A pressure sensor (721) is installed in the pressure housing (708) and a pressure sensor (723) is installed in the pressure housing (709). Both pressure sensors (721) and (723) are fixedly connected to the sensor mounting plate (722). A pressure rod (711) is assembled at the bottom of the pressure sensor (721), and a pressure rod (712) is assembled at the bottom of the pressure sensor (723). Both pressure rods (711) and (712) are assembled with the polyurethane pressure plate (9). The press-fitting worktable (2) includes: a support frame structure, a worktable panel (205) installed on the upper end of the support frame structure, a worktable pressure plate (206) installed on the worktable panel (205) by a table plate buffer spring, a number of contour grippers (207) evenly distributed around the center of the worktable pressure plate (206) and installed on the worktable panel (205), and a contour gripper linkage assembly connected to the bottom surface of the worktable pressure plate (206) and used to drive the contour grippers (207) to move synchronously. The contour gripper linkage assembly includes: a pressure plate central shaft (208), a control disc (209), and a conical pressure sleeve (210) installed sequentially from top to bottom on the bottom of the worktable pressure plate (206); a plurality of gripper base plates (211) installed on the bottom of the worktable panel (205) and connected to the corresponding contour gripper (207) pin shaft; a plurality of gripper levers (212) installed on the lower end of the corresponding contour gripper (207) and in contact with the control disc (209) or the conical pressure sleeve (210); and a gripper spring (213) installed between the contour gripper (207) and the gripper base plate (211). It also includes a frame back plate (6), which is mounted on the frame structure; the press-fit assembly (7) also includes a press-fit back plate (701) slidably mounted on the frame back plate (6), and the press-fit base plate (707) is mounted on the press-fit back plate (701); It also includes a clamping reinforcement assembly, which includes: a linkage plate (702) installed on the lower side of the press-fit back plate (701); a wedge connecting shaft (218) and a main shaft wedge (219) installed from top to bottom on the bottom of the conical press sleeve (210); a push assembly installed inside the support frame structure; a rotating arm wedge (220) with one end installed to the output end of the push assembly and the other end cooperating with the main shaft wedge (219) in parallel with the wedge inclined surface; and a transmission assembly with one end connected to the linkage plate (702) and the other end connected to the input end of the push assembly.

2. The automatic pressing equipment for combined circular components according to claim 1, characterized in that, The pressure sensor in section I (721) is a standard precision pressure sensor, and the pressure sensor in section II (723) is a high precision pressure sensor.

3. The automatic pressing equipment for combined circular components according to claim 1, characterized in that, The press-fit assembly (7) further includes: a press-fit housing (710) installed at the bottom of the II-stage pressure housing (709); I press-fit rods (717), II press-fit rods (718), III press-fit rods (719) and IV press-fit rods (720) installed inside the press-fit housing (710); and I press-fit buffers assembled with I press-fit rods (717), II press-fit rods (718), III press-fit rods (719) and IV press-fit rods (720) respectively. Spring (713), I press-fit buffer spring (714), III press-fit buffer spring (715) and IV press-fit buffer spring (716); the I press-fit buffer spring (713), II press-fit buffer spring (714), III press-fit buffer spring (715) and IV press-fit buffer spring (716) are all assembled with polyurethane pressure plate (9); the I pressure rod (711) and II pressure rod (712) are both slidably installed through the inside of the press-fit housing (710).

4. The automatic pressing equipment for combined circular components according to claim 1, characterized in that, The transmission assembly includes: a through slot (604) on the frame back plate (6), a pressure connecting guide sleeve (605) that passes through the through slot (604) and is connected to the linkage plate (702), and a pressure connecting rod (606) whose one end is connected to the pressure connecting guide sleeve (605) via a guide sleeve buffer spring and whose other end is connected to the input end of the push assembly.

5. The automatic pressing equipment for combined circular components according to claim 1 or 4, characterized in that, The pushing component is a scissor-type telescopic mechanism.

6. The automatic pressing equipment for combined circular components according to any one of claims 1-4, characterized in that, The bottom of the press workbench (2) is equipped with a frame base plate (1).

7. The automatic pressing equipment for combined circular components according to claim 6, characterized in that, The press workbench (2) is also equipped with a logistics roller conveyor (11).

8. The automatic pressing equipment for combined circular components according to claim 6, characterized in that, The frame structure and the logistics roller conveyor (11) are also equipped with a protective cover (10), and a through-beam safety light curtain is installed on the protective cover (10).

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