Combined type automatic press-fitting equipment for circular parts

Abstract

The invention discloses combined type automatic press-fitting equipment for circular parts. The combined type automatic press-fitting equipment comprises a frame structure body, a hydraulic cylinder, a press-fitting assembly and a polyurethane pressure plate, wherein the frame structure body is formed by combining a press-fitting workbench, a left side frame, a right side frame and a frame beam body; the hydraulic cylinder is fixed at the top of the frame beam body; 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 an II-section pressure shell are installed at the bottom of the press-fitting base plate from top to bottom. A first-section pressure sensor and a second-section pressure sensor are installed in the first-section pressure shell and the second-section pressure shell respectively, and the first-section pressure sensor and the second-section pressure sensor are both fixed to the sensor installation partition plate. 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. The section I pressure rod and the section II pressure rod are assembled with the polyurethane pressure plate; according to the automatic press-fitting device, automatic and efficient press-fitting of the combined circular parts is achieved, the consistency of products is guaranteed, and the labor cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of intelligent manufacturing technology, and in particular to an automatic press-fitting device for a two-piece or multi-piece combined circular automobile component. Background Art

[0002] New energy vehicles are a new trend in the development of automotive industry technology, and the auto parts used in them are basically aluminum products. With the continuous and rapid development of the automotive manufacturing industry, especially in the fields of new energy, new materials, and intelligent manufacturing, the concept of personalization has become prominent, making the shapes of two-piece or three-piece combined circular auto parts changeable, convenient for personalized customization, and more widely used, with a broad market and rich application background.

[0003] At present, most modular circular auto parts are modified aluminum alloy forged parts, which are composed of several parts such as a circular rim, a circular rib, and a circular bushing. They are tightened and fixed with special high-strength bolts. Although this type of circular auto parts tightened by bolts can be matched and combined into a variety of styles and specifications, which provides convenience for car owners who want to show their individuality, it has its disadvantages of complex manufacturing process, high cost, and relatively high selling price. Circular auto parts have large weight and inertia force, heavy weight, and complex manufacturing process. They are prone to deformation and cracks, poor dynamic balancing effect, and high assembly requirements. In addition, it is difficult to ensure product consistency by using high-strength bolt connection, there are tightening defects, the current production products are single, the production cycle is slow, and the efficiency is low. There are safety risks in ensuring vehicle safety and improving vehicle performance.

[0004] In order to completely eliminate hidden safety risks of vehicles, a production process has been developed in which two or three circular rim-shaped bodies and circular web-shaped bodies are press-fitted and welded into one.

[0005] At present, the pressing and assembly of modular circular automotive parts is basically done manually, that is, hammering and extruding with a handheld hammer, which is inefficient, produces a lot of waste and is difficult to ensure product consistency. Summary of the invention

[0006] In view of the above problems, the present invention proposes an automatic press-fitting device for combined circular components, which is used for automatic press-fitting of combined circular components. The technical solution adopted is as follows: A combined circular component automatic press-fitting device, characterized in that it comprises: a frame structure composed of a press-fitting workbench, a left frame, a right frame and a frame beam, a hydraulic cylinder fixed to the top of the frame beam, and a press-fitting assembly and a polyurethane pressure plate connected to the hydraulic cylinder in sequence; The press-fit assembly comprises: a press-fit base plate installed on the cylinder rod joint of the hydraulic cylinder, wherein a section I pressure housing, a sensor installation partition and a section II pressure housing are installed in sequence at the bottom of the press-fit base plate from top to bottom; a section I pressure sensor and a section II pressure sensor are installed in the section I pressure housing and the section II pressure housing respectively, and the section I pressure sensor and the section II pressure sensor are both fixedly connected to the sensor installation partition; a section I pressure rod is assembled at the bottom of the section I pressure sensor, and a section II pressure rod is assembled at the bottom of the section II pressure sensor; and the section I pressure rod and the section II pressure rod are both assembled with a polyurethane pressure plate.

[0007] Furthermore, the section I pressure sensor is a common precision pressure sensor, and the section II pressure sensor is a high precision pressure sensor.

[0008] Furthermore, the press-fitting assembly also includes: a press-fitting shell installed at the bottom of the section II pressure shell, a press-fitting rod I, a press-fitting rod II, a press-fitting rod III and a press-fitting rod IV installed inside the press-fitting shell, and a press-fitting buffer spring I, a press-fitting rod II, a press-fitting rod III and a press-fitting rod IV respectively assembled with the press-fitting rod I, the press-fitting rod II, the press-fitting rod III and the press-fitting rod IV; the press-fitting buffer spring I, the press-fitting buffer spring II, the press-fitting buffer spring III and the press-fitting buffer spring IV are all assembled with a polyurethane pressure plate; the section I pressure rod and the section II pressure rod are both slidably installed through the interior of the press-fitting shell.

[0009] Furthermore, the pressing workbench includes: a support frame structure, a workbench panel installed on the upper end of the support frame structure, a workbench pressure plate installed on the workbench panel through a table buffer spring, a plurality of contouring claws evenly distributed on the workbench panel and installed around the center of the workbench pressure plate, and a contouring claw linkage assembly connected to the bottom surface of the workbench pressure plate and used to drive each contouring claw to move synchronously.

[0010] Furthermore, the contoured clamping jaw linkage assembly includes: a pressure plate center axis, a control disc and a conical pressing sleeve installed on the bottom of the workbench pressure plate from top to bottom, a plurality of clamping jaw base plates installed on the bottom of the workbench panel and connected to the corresponding contoured clamping jaw pins, a plurality of clamping jaw levers installed on the lower ends of the corresponding contoured clamping jaws and in contact with the control disc or the conical pressing sleeve, and a clamping jaw spring installed between the contoured clamping jaw and the clamping jaw base plate.

[0011] Furthermore, it also includes a frame back plate, which is installed on the frame structure; the press-fit assembly also includes a press-fit back plate slidably installed on the frame back plate, and the press-fit substrate is installed on the press-fit back plate.

[0012] Furthermore, it also includes a clamping reinforcement component, which includes: a linkage plate installed on the lower side of the press-fitted backplate, a wedge coupling and a main shaft wedge installed at the bottom of the conical press sleeve from top to bottom, a pushing component installed inside the support frame structure, a swivel arm wedge installed at one end with the output end of the pushing component and the other end with the main shaft wedge using a wedge inclined surface parallel to the wedge, and a transmission component connected to the linkage plate at one end and the input end of the pushing component at the other end.

[0013] Furthermore, the transmission assembly includes: a through long slot hole opened on the back plate of the frame, a pressure connection guide sleeve passing through the through long slot hole and connected to the linkage plate, and a pressure connection rod having one end connected to the pressure connection guide sleeve through a guide sleeve buffer spring and the other end connected to the input end of the pushing assembly.

[0014] Furthermore, the pushing assembly is a scissor-type telescopic mechanism.

[0015] Furthermore, a frame bottom plate is installed at the bottom of the press-fitting workbench.

[0016] Furthermore, a logistics roller conveyor is installed on the press-fitting workbench.

[0017] Furthermore, a protective cover is installed outside the frame structure and the logistics roller, and a counter-reflective safety grating is installed on the protective cover.

[0018] Since the present invention adopts the above technical solution, the present invention has the following advantages: 1. The present invention realizes the automatic and efficient press-fitting of modular circular automobile parts through the coordinated design of the frame structure, the hydraulic cylinder and the press-fitting assembly, which not only ensures the consistency of the products, improves the yield rate, but also greatly reduces the labor cost.

[0019] 2. The present invention further fundamentally eliminates the phenomenon of the circular rim-shaped workpiece being deflected by force during the press-fitting process through the design of the clamping reinforcement component. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1-2 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 3 The schematic diagram of the structure of the present invention is shown in FIG. 1 , in which the press-fit assembly, the polyurethane pressure plate and the aluminum profile protective cover are removed.

[0022] Figure 4 The present invention is a schematic structural diagram in which the left side frame, the right side frame, the frame beam body and the frame back plate are removed.

[0023] Figure 5 It is a schematic diagram of the exploded structure of the press-fit assembly of the present invention.

[0024] Figure 6For the present invention Figure 5 Schematic diagram of the enlarged structure at point A in the middle.

[0025] Figure 7 It is a schematic diagram of the internal structure of the press-fitting workbench of the present invention.

[0026] Figure 8 It is a schematic diagram of the press-fitting action of the present invention.

[0027] Figure Number: 1-Frame bottom plate; 2- Pressing workbench; 201-front stand; 202-back stand; 203-lower left convex mortise and tenon; 204-lower right convex mortise and tenon; 205-workbench panel; 206-workbench pressure plate; 207-profile clamping jaw; 208-pressure plate center axis; 209-control disc; 210-conical pressing sleeve; 211-clamping jaw base plate; 212-clamping jaw lever; 213-clamping jaw spring; 214-I center rotating arm; 215-II center rotating arm; 216-I connecting support arm; 217-II connecting support arm; 218-wedge block coupling; 219-spindle wedge block; 220-rotating arm wedge block; 3- Left side frame; 301-left frame base plate; 302-left frame vertical plate; 4-right side frame; 401-right frame base plate; 402-right frame vertical plate; 5-frame beam; 501- beam front plate; 502- beam rear plate; 503- upper left convex mortise and tenon joint; 504- upper right convex mortise and tenon joint; 505- beam bottom plate; 6-frame back panel; 601-left linear guide rail; 602-right linear guide rail; 603-proximity switch slide rail; 604-through long slot hole; 605-pressure connection guide sleeve; 606-pressure connection rod; 7- Press-fit assembly; 701-press-fit back plate; 702-linkage plate; 703-left I guide slider; 704-left II guide slider; 705-right I guide slider; 706-right II guide slider; 707-press-fit base plate; 708-I section pressure housing; 709-II section pressure housing; 710-press-fit housing; 711-I section pressure rod; 712-II section pressure rod; 713-I press-fit buffer spring; 714-II press-fit buffer spring; 715-III press-fit buffer spring; 716-IV press-fit buffer spring; 717-I press-fit rod; 718-II press-fit rod; 719-III press-fit rod; 720-IV press-fit rod; 721-I section pressure sensor; 722-sensor mounting partition; 723-II section pressure sensor; 8-Hydraulic cylinder; 801-cylinder rod joint; 9-Polyurethane pressure plate; 10-Aluminum profile protective cover; 11-Logistics roller conveyor. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further specifically described below by way of embodiments and in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0029] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "in", "out", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Example:

[0030] The present embodiment provides a combined circular component press-fitting device, which is used to connect two or more combined circular components by press-fitting; before automatic press-fitting, the present embodiment first needs to place the circular rim-shaped body in a heating and insulation furnace, and after heating to 250°C, stop heating and keep warm to ensure that after leaving the heating and insulation furnace, the surface temperature of the circular rim-shaped body to be pressed is not lower than 200°C, and the circular rim-shaped body is in a thermal expansion state, so as to facilitate the smooth press-fitting of the circular web-shaped body.

[0031] like Figure 1-Figure 2 As shown, it is a schematic diagram of the overall structure of a combined circular component pressing device.

[0032] It mainly includes: a frame bottom plate 1, a pressing workbench 2, a left frame 3, a right frame 4, a frame beam 5, a frame back plate 6, a pressing assembly 7, a hydraulic cylinder 8, a polyurethane pressure plate 9, an aluminum profile protective cover 10 and a logistics roller 11.

[0033] The frame bottom plate 1 is fixed to the ground through a plurality of height-adjustable base bolts, and the frame bottom plate 1 is kept in a horizontal state through adjustment of the height-adjustable base bolts.

[0034] The press-fitting workbench 2 is fixed on the frame bottom 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 ends of the left frame 3 and the right frame 4 by multiple high-strength bolts, thereby 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 bidirectional or multi-directional lateral force resistance of the frame structure, meet the safety and reliability of the hydraulic system under load, and meet the press-fitting pressure level requirements and performance requirements required under specific working conditions.

[0035] The frame back plate 6 is provided with a through slot hole 604, through which the pressure connection guide sleeve 605 passes to connect with the linkage plate 702 on the press-fit assembly 7, and the pressure connection guide sleeve 605 is connected with the pressure connection rod 606 via a guide sleeve buffer spring (refer to Figure 2-Figure 5 ).

[0036] A polyurethane pressure plate 9 is fixedly installed under the press-fitting assembly 7; the polyurethane pressure plate 9 has excellent moderate hardness and softness and friction resistance, and will not cause surface scratches on the circular rim-shaped body and the circular web-shaped body.

[0037] The hydraulic cylinder 8 is installed and fixed on the frame beam body 5 , and the hydraulic cylinder 8 is connected to the press-fit assembly 7 through a cylinder rod joint 801 .

[0038] A logistics roller conveyor 11 is also installed on the frame bottom plate 1 , the inlet of the logistics roller conveyor 11 is parallel to and connected with the press-fitting workbench 2 , and the outlet of the logistics roller conveyor 11 is parallel to and connected with the logistics roller conveyor inside the production workshop.

[0039] On the outside of this combined circular component pressing equipment, an aluminum profile protective cover 10 is customized and installed according to the shape and size of the equipment; a reflective safety grating is installed on the aluminum profile protective cover 10 to prevent people from accidentally entering the dangerous area, and play a safety protection role when the equipment is running, thereby avoiding safety accidents; thereby, the safety of the working environment and production continuity can be improved, and production efficiency can be improved.

[0040] The exterior of this combined circular component press-fitting equipment is also equipped with an electrical control cabinet, a touch screen, a hydraulic pump station, and hydraulic pipelines.

[0041] like Figure 3 Shown is a schematic structural diagram of a combined circular component press-fitting equipment removing the press-fitting assembly, polyurethane press plate and aluminum profile protective cover.

[0042] More specifically, the press-fitting workbench 2 is a box-type structural member composed of a support frame structure and a workbench panel 205, that is, a stable box-type structural member composed of a front vertical plate 201, a rear vertical plate 202, two left and right side panels of the workbench and a workbench panel 205; in order to reduce the weight of the equipment and facilitate the internal welding of the connecting plates of this box-type structure, through holes are opened on the front vertical plate 201 and the rear vertical plate 202; in order to strengthen the stability of the equipment frame structure connection, raised lower left convex mortise and tenon 203 and lower right convex mortise and tenon 204 are designed at the corresponding positions of the front vertical plate 201, the rear vertical plate 202 and the two left and right side panels of the workbench, which are used to strengthen the load-bearing strength of the workbench panel 205 and improve the compressive rigidity of the plate.

[0043] The frame beam body 5 is a stable box-type structural member composed of a front beam upright plate 501, a rear beam upright plate 502, two beam side plates and a beam bottom plate 505; at the corresponding positions of the front beam upright plate 501 and the rear beam upright plate 502, there are also protruding upper left convex mortise and tenon 503 and upper right convex mortise and tenon 504; the hydraulic cylinder 8 is installed and fixed on the beam bottom plate 505 by multiple high-strength bolts.

[0044] The left side frame 3 is a frame structure consisting of a left frame base plate 301 and two left frame vertical plates 302 welded on the vertical surface of the left frame base plate 301; a groove is designed at the lower end of the left side frame base plate 301 to match the raised lower left convex mortise and tenon 203; a groove is designed at the upper end of the left side frame base plate 301 to match the raised upper left convex mortise and tenon 503.

[0045] The right side frame 4 is a frame structure consisting of a right frame substrate 401 and two right frame vertical plates 402 welded on the vertical surface of the right frame substrate 401; a groove is designed at the lower end of the right frame substrate 401 to match the raised lower right convex mortise and tenon 204; and a groove is designed at the upper end of the right frame substrate 401 to match the raised upper right convex mortise and tenon 504.

[0046] When the press-fitting workbench 2, the left frame 3, the right frame 4, and the frame beam 5 are connected to form a frame structure through multiple high-strength bolts, the upper and lower grooves of the left frame substrate 301 are tightly matched with the lower left convex mortise and tenon 203 and the upper left convex mortise and tenon 503 respectively; the upper and lower grooves of the right frame substrate 401 are tightly matched with the lower right convex mortise and tenon 204 and the upper right convex mortise and tenon 504 respectively; the frame mortise and tenon structure provided in this embodiment can enable the frame structure to withstand a larger hydraulic load. During the press-fitting process, the mortise and tenon structure is tightly connected to absorb deformation energy, reduce the lateral shear force of the high-strength bolts, and make the frame structure more stable.

[0047] In order to facilitate the installation and transportation of the equipment, through hoisting holes are opened on the left frame 3 and the right frame 4.

[0048] The frame back plate 6 is installed on the back of the frame structure by multiple bolts; the left linear guide 601 and the right linear guide 602 are installed on the frame back plate 6; the frame back plate 6 is also installed with a proximity switch slide rail 603 and multiple upper and lower limit proximity switches to prevent the press-fit assembly 7 from exceeding the safety stroke when the cylinder rod of the hydraulic cylinder 8 is extended.

[0049] The logistics roller 11 is composed of a roller motor 112 driving a plurality of rubber-sheathed transfer rollers 111 through a sprocket chain and a roller frame 113. The rubber-sheathed transfer roller 111 is made of high-quality rubber material, which has strong heat resistance and wear resistance, can keep the surface flat during long-term operation, is not easy to wear due to anti-slip treatment, has the characteristics of impact resistance and vibration reduction, ensures that the assembled combined circular parts are continuously cooled in the logistics process, will not be damaged by bumps, and improves the product yield.

[0050] The logistics roller 11 is provided with a plurality of groups of opposing photoelectric switches. When the opposing photoelectric switches continuously detect blocking signals, the roller motor 112 rotates, and drives the plurality of rubber-sheathed transfer rollers 111 to rotate through the sprocket chain to perform logistics transportation.

[0051] like Figure 4 , Figure 5 As shown, a press-fitting assembly layout diagram and an exploded diagram of the internal structure of a combined circular component press-fitting device; Figure 6 As shown, Figure 5 Enlarged view of point A in the middle.

[0052] 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 section I pressure shell 708, a section II pressure shell 709, a press-fit shell 710, a section I pressure rod 711, a section II pressure rod 712, an I press-fit buffer spring 713, an II press-fit buffer spring 714, a III press-fit buffer spring 715, an IV press-fit buffer spring 716, an I press-fit rod 717, an II press-fit rod 718, a III press-fit rod 719, an IV press-fit rod 720, a section I pressure sensor 721, a sensor mounting partition 722, a section II pressure sensor 723 and a polyurethane pressure plate 9.

[0053] The back of the press-fitted back plate 701 is installed with a left I guide slider 703, a left II guide slider 704, a right I guide slider 705, and a right II guide slider 706; among them, the left I guide slider 703 and the left II guide slider 704 cooperate with the left linear guide 601 installed on the frame back plate 6, and the right I guide slider 705 and the right II guide slider 706 cooperate with the right linear guide 602 installed on the frame back plate 6.

[0054] A linkage plate 702 is installed on the lower side of the press-fitted back plate 701; a press-fitted base plate 707 is installed on the front side of the press-fitted back plate 701, and a connecting groove of a cylinder rod joint 801 is provided on the top of the press-fitted base plate 707, so that the plane shoulder of the cylinder rod joint 801 is embedded in the connecting groove; the cylinder rod joint 801 is threadedly connected to the cylinder rod end of the hydraulic cylinder 8.

[0055] The bottom of the press-fit substrate 707 is sequentially installed with a stage I pressure housing 708 , a stage II pressure housing 709 and a press-fit housing 710 from top to bottom.

[0056] The I-stage pressure housing 708 and the II-stage pressure housing 709 are respectively installed with the I-stage pressure sensor 721 and the II-stage pressure sensor 723; a sensor installation partition 722 is installed between the I-stage pressure housing 708 and the II-stage pressure housing 709; the I-stage pressure rod 717, the II-stage pressure rod 718, the III-stage pressure rod 719 and the IV-stage pressure rod 720 are installed inside the press housing 710 (refer to Figure 5 , Figure 6 ).

[0057] Among them, the section I pressure sensor 721 is assembled with the section I pressure rod 711, and the section II pressure sensor 723 is assembled with the section II pressure rod 712; the section I pressure rod 711 and the section II pressure rod 712 are both slidably installed inside the press-fit shell 710.

[0058] I press-fitting rod 717 is assembled with I press-fitting buffer spring 713; II press-fitting rod 718 is assembled with II press-fitting buffer spring 714; III press-fitting rod 719 is assembled with III press-fitting buffer spring 715; IV press-fitting rod 720 is assembled with IV press-fitting buffer spring 716.

[0059] Finally, the section I pressure rod 711 , the section II pressure rod 712 , the section I press-fit buffer spring 713 , the section II press-fit buffer spring 714 , the section III press-fit buffer spring 715 , the section IV press-fit buffer spring 716 and the polyurethane pressure plate 9 are assembled together.

[0060] The extension and retraction of the rod of the hydraulic cylinder 8 drives the press-fitting base plate 707 and the section I pressure housing 708, the section II pressure housing 709, the press-fitting housing 710, and the polyurethane pressure plate 9 to move up and down along the left linear guide 601 and the right linear guide 602.

[0061] The pressure sensors of the section I pressure sensor 721 and the section II pressure sensor 723 have different detection accuracy. The section I pressure sensor 721 is a common accuracy pressure sensor, and the section II pressure sensor 723 is a high accuracy pressure sensor.

[0062] The section I pressure sensor 721 and the section II pressure sensor 723 are fixedly connected to the sensor mounting partition 722 using bolts respectively.

[0063] In this embodiment, the stage I pressure sensor 721 and the stage II pressure sensor 723 are connected to the stage I pressure shell 708 and the stage II pressure shell 709 to form staggered fixed positions. In this way, the layout space can be significantly saved and the necessary external dimensions of the stage I pressure shell 708, the stage II pressure shell 709 and the press-fit shell 710 can be reduced.

[0064] Explanation: If the stage I pressure sensor 721 and the stage II pressure sensor 723 are installed side by side according to conventional practice, the parallel width of the stage I pressure sensor 721 and the stage II pressure sensor 723 must be met, which will inevitably increase the width of the stage I pressure housing 708 and the stage II pressure housing 709, which will in turn affect the width of the press-fit housing 710, and even increase the width of the press-fit substrate 707, thereby increasing the overall width of the equipment.

[0065] The section I pressure sensor 721 and the section II pressure sensor 723 are connected to the section I pressure shell 708 and the section II pressure shell 709 in an offset installation. The section II pressure sensor 723 is installed at the lower end of the section I pressure sensor 721, which shortens the parallel width of the section I pressure sensor 721 and the section II pressure sensor 723 to the greatest extent and saves layout space.

[0066] The upper end of the section I pressure rod 711 rests on the section I pressure sensor 721 and keeps it in close contact; the upper end of the section II pressure rod 712 rests on the section II pressure sensor 723 and keeps it in close contact.

[0067] A polyurethane pressure plate 9 is installed at the lower end of the section I pressure rod 711 and the section II pressure rod 712.

[0068] When the polyurethane pressure plate 9 presses the assembled circular component downward, the reaction force generated will be transmitted to the section I pressure sensor 721 through the section I pressure rod 711 and to the section II pressure sensor 723 through the section II pressure rod 712.

[0069] At the same time, the I press-fitting buffer spring 713, II press-fitting buffer spring 714, III press-fitting buffer spring 715, and IV press-fitting buffer spring 716 installed on the polyurethane pressure plate 9 cooperate with the I press-fitting rod 717, II press-fitting rod 718, III press-fitting rod 719, and IV press-fitting rod 720 to ensure that the polyurethane pressure plate 9 is evenly stressed and will not deflect, thereby ensuring the press-fitting quality.

[0070] like Figure 7 Shown is a diagram of the internal structure of a press-fitting workbench of a combined circular component press-fitting equipment.

[0071] The action mechanism in the press-fitting workbench 2 includes: a workbench pressure plate 206, six contoured clamping jaws 207, a pressure plate central axis 208, a control disc 209, a conical pressing sleeve 210, six clamping jaw base plates 211, six clamping jaw levers 212, six clamping jaw springs 213, a pushing assembly, a wedge block connecting shaft 218, a main shaft wedge block 219 and a rotating arm wedge block 220; wherein, the pushing assembly includes an I center rotating arm 214, an II center rotating arm 215, an I connecting support arm 216 and an II connecting support arm 217.

[0072] A sink hole slightly larger than the diameter of the workbench plate 206 is made on the workbench panel 205, and the thickness of the sink hole is 3 / 4 of the thickness of the workbench panel 205. A through hole is opened at the center point of the sink hole of the workbench panel 205 and a catheter bushing is embedded.

[0073] The bottom of the workbench pressure plate 206 is connected to a pressure plate center axis 208, on which a workbench buffer spring is installed. The pressure plate center axis 208 passes through the catheter bushing and is connected to the control disc 209 and the conical pressure sleeve 210; the workbench buffer spring is clamped between the sinking hole of the workbench panel 205 and the workbench pressure plate 206.

[0074] Pin holes are designed at corresponding positions on the profiling jaw 207 and the jaw base plate 211, which are connected by inserting pin shafts; the lower end of the profiling jaw 207 is connected to a jaw lever 212; the profiling jaw 207 and the jaw base plate 211 are designed with spring positioning bosses at corresponding positions, and the jaw spring 213 is clamped on the spring positioning bosses.

[0075] During the downward pressing process of the workbench pressure plate 206, the conical pressing sleeve 210 is first tangent to the fillet of the clamping lever 212 to minimize the friction resistance; as the conical pressing sleeve 210 descends, the angle of the clamping lever 212 tends to be horizontal, and then the control disk 209 contacts the plane on the clamping lever 212 to maximize the force area of ​​the clamping lever 212; the action of pressing the clamping lever 212 downward drives the contoured clamping jaw 207 to rotate inward with the pin hole on the clamping jaw base plate 211 as the center; at the same time, the clamping jaw spring 213 is compressed.

[0076] When the workbench pressure plate 206 is not subjected to external force, the table buffer spring relaxes naturally, and the control disc 209 and the conical pressing sleeve 210 both release the pressing jaw lever 212. Under the action of the jaw spring 213, the contoured jaw 207 rotates outward with the pin hole on the jaw base plate 211 as the center.

[0077] Six sets of contoured clamping jaw structures are composed of six contoured clamping jaws 207, six clamping jaw base plates 211, six clamping jaw levers 212 and six clamping jaw springs 213, which are evenly distributed on the workbench panel 205 at equal distances from the center of the workbench pressure plate 206.

[0078] In addition, a layer of polyurethane plate made of the same material as the polyurethane pressure plate 9 is laid on the surface of the workbench pressure plate 206 and the contoured clamping claw 207 to ensure that the contact surface of the circular rim-shaped body to be pressed will not be damaged by collision, effectively improving the product yield of the combined circular component.

[0079] A rotating shaft pin hole is designed at the center point of the I center rotating arm 214 and the II center rotating arm 215, and connecting pin holes are designed at the front and rear ends of the I center rotating arm 214, the II center rotating arm 215, the I connecting support arm 216, and the II connecting support arm 217.

[0080] The I center pivot arm 214 and the II center pivot arm 215 are installed in a scissors form, and the pivot pin holes of the I center pivot arm 214 and the II center pivot arm 215 are aligned and connected by pivot pins; the front end of the I center pivot arm 214 is connected to the rear end of the II connecting support arm 217 through a pivot pin, and the rear end of the I center pivot arm 214 is connected to the pressure connecting rod 606 through a pivot pin; the front end of the II center pivot arm 215 is connected to the rear end of the I connecting support arm 216 through a pivot pin, and the rear end of the II center pivot arm 215 is connected to the pivot arm base through a pivot pin, and the pivot arm base is connected to the bottom plate of the workbench.

[0081] The front end connecting pin holes of the I connecting support arm 216 and the II connecting support arm 217 are concentrically matched, and are connected to the rotating arm wedge block 220 by inserting the rotating arm buffer spring through the shaft pin.

[0082] A wedge coupling 218 is installed below the conical pressing 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 matched with parallel wedge inclined surfaces.

[0083] When the pressure connecting rod 606 is pressed down, it drives the I center rotating arm 214 and the II center rotating arm 215 to realize the scissors opening and closing action, thereby further driving the I connecting support arm 216 and the II connecting support arm 217 to realize the motion characteristics of the four-bar mechanism, so that the rotating arm wedge block 220 extends in the horizontal direction and moves smoothly.

[0084] The mating inclined surfaces of the spindle wedge block 219 and the swing arm wedge block 220 are squeezed and stressed, causing the spindle 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, and finally causing the six sets of contoured clamping jaw structures to clamp inward with the center point of the circle of the workbench pressure plate 206.

[0085] like Figure 8 As shown, a schematic diagram of the pressing action of a combined circular component pressing device.

[0086] First, place the circular rim body in a heating and insulation furnace, heat and keep it warm to ensure that the surface temperature of the circular rim body is not lower than 200°C. Set the hydraulic pressure, cylinder pressure stroke curve and cylinder rod stroke parameters through the matching electrical control cabinet, touch screen and hydraulic pump station.

[0087] Place the preheated circular rim-shaped body on the workbench pressure plate 206 of the pressing workbench 2, and place the circular web-shaped body to be pressed on the preheated circular rim-shaped body. The operator exits the safety detection range of the aluminum profile protective cover 10 and the safety grating, and presses the start button on the electrical control cabinet.

[0088] Under the pressure of the circular rim's own weight, the table buffer spring is compressed, and the workbench pressure plate 206 descends, driving the pressure plate center axis 208, the control disc 209, and the conical pressing sleeve 210 to press down, and the six clamping claw levers 212 act at the same time, so that the six contoured clamping claws 207 are tightened inward at the same time, automatically locking the circular rim, and realizing automatic centering action (the circular rim part can usually be shared, and different shapes can be changed by simply replacing circular webs of different styles and sizes, which is very convenient).

[0089] 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 and the section I pressure shell 708, section II pressure shell 709, press-fit shell 710, and the polyurethane pressure plate 9 to move downward along the left linear guide 601 and the right linear guide 602.

[0090] At the same time, the linkage plate 702 drives the pressure connection guide sleeve 605, the guide sleeve buffer spring and the pressure connection rod 606 to move downward.

[0091] The polyurethane pressure plate 9 gradually approaches the circular ribbed body, and the I press-fitted buffer spring 713, II press-fitted buffer spring 714, III press-fitted buffer spring 715, and IV press-fitted buffer spring 716 installed on the polyurethane pressure plate 9 are gradually compressed. The I press-fitted rod 717, II press-fitted rod 718, III press-fitted rod 719, and IV press-fitted rod 720 installed inside the press-fitted buffer spring are force-balanced under the constraint of the inner hole of the press-fitted shell 710, ensuring that the polyurethane pressure plate 9 and the contacting circular ribbed body are always in fit, maintain a horizontal state, and are evenly stressed.

[0092] At the same time, the pressure connecting rod 606 is pressed down, driving the I center rotating arm 214 and the II center rotating arm 215 to realize the scissor opening and closing action, thereby further driving the I connecting support arm 216 and the II connecting support arm 217 to move, so that the rotating arm wedge block 220 extends in the horizontal direction, and the matching inclined surfaces of the rotating arm wedge block 220 and the wedge block of the main shaft wedge block 219 are squeezed and stressed, so that the main shaft wedge block 219 moves vertically downward, thereby driving the wedge block connecting shaft 218, the conical pressing sleeve 210, and the control disc 209 to move downward together, and finally the six sets of contoured clamping jaw structures are clamped inwardly with the center point of the circle of the workbench pressure plate 206, and the six sets of contoured clamping jaw structures are clamped at the same time, which fundamentally prevents the circular rim-shaped workpiece from being deviated during the pressing process.

[0093] During the pressing process, the reaction force generated by the downward pressing is promptly transmitted and fed back to the section I pressure sensor 721 and the section II pressure sensor 723 through the section I pressure rod 711 and the section II pressure rod 712 installed on the polyurethane pressure plate 9, so as to realize real-time monitoring of the pressing pressure and the downward pressing stroke, and compare the touch screen set value with the pressing process value and the final verification value in real time to judge whether the pressing is qualified and ensure the pressing quality.

[0094] Under the action of the hydraulic cylinder 8, the polyurethane pressure plate 9 continues to press down, completely pressing the circular web-shaped body into the interior of the circular rim-shaped body, and the edges of the circular web-shaped body and the circular rim-shaped body overlap to become one; at this time, the downward pressure of the pressure connecting rod 606 is absorbed by the table buffer spring, guide sleeve buffer spring, and swing arm buffer spring; at the same time, the I-stage pressure sensor 721 detects whether the I-stage pressure is pressed into place. After the I-stage pressure sensor 721 detects that the value is consistent with the touch screen setting value, the next step is performed, otherwise the equipment alarms.

[0095] The detection value of the section I pressure sensor 721 is qualified, and under the action of the hydraulic cylinder 8, the polyurethane pressure plate 9 continues to press down; at this time, the circular web has been completely pressed into the circular rim, and the edges of the circular web and the circular rim overlap; after the second pressurization, the circular web and the circular rim form a whole to generate a reaction force, and the high-precision section II pressure rod 712 will promptly transmit the reaction force generated by the downward pressing to the section II pressure sensor 723 for feedback; when the detection values ​​all reach the set values, the hydraulic cylinder 8 cylinder rod retracts, driving the linkage plate 702, the pressing base plate 707 and the section I pressure shell 708, the section II pressure shell 709, the pressing shell 710, and the polyurethane pressure plate 9 to move upward along the left linear guide 601 and the right linear guide 602 to complete the pressing action.

[0096] The rise of the linkage plate 702 further drives the pressure connection guide sleeve 605, the guide sleeve buffer spring and the pressure connection rod 606 to move upward, driving the I center pivot arm 214 and the II center pivot arm 215 to realize the scissors opening and closing action, thereby further driving the I connecting support arm 216 and the II connecting support arm 217 to move, causing the pivot arm wedge block 220 to retract in the horizontal direction, and the matching inclined surface of the pivot arm wedge block 220 and the wedge block of the main shaft wedge block 219 is disengaged.

[0097] After the pressing action is completed, the pressing work of the pressing equipment stops; the operator easily lifts and removes the assembled circular component after pressing, and the workbench pressure plate 206 is naturally relaxed without being subjected to external force, and the control disc 209 and the conical pressing sleeve 210 both release the pressing jaw lever 212. Under the action of the jaw spring 213, the contoured jaw 207 rotates outward with the pin hole on the jaw base plate 211 as the center, and the six sets of contoured jaw structures automatically open.

[0098] The operator pushes the assembled combined circular components into the logistics roller 11, which is equipped with multiple groups of opposing photoelectric switches. When the opposing photoelectric switches continuously detect blocking signals, the roller motor 112 rotates, and drives the multiple rubber-sheathed transfer rollers 111 to rotate through the sprocket chain to carry out logistics transportation of the combined circular components.

[0099] For the proposed technical solution, there are alternative solutions, such as using a hydraulic station or a hydraulic cylinder to replace the hydraulic cylinder 8 as a pressure cylinder, using other forms of tables or plate structures to replace the press-fitting workbench 2, using other forms of pressure plate molds to replace the polyurethane pressure plate 9, using other forms of linkage devices to replace the center rotating arms 214, 215 and the connecting arms 216, 217, using other forms of pressure plate cone sleeves to replace the control disc 209 and the conical pressure sleeve 210, using other forms of clamping jaw structures to replace the contoured clamping jaw 207, the clamping jaw base plate 211, the clamping jaw lever 212, the clamping jaw spring 213, etc., all of which are within the protection scope of the present invention.

Claims

1. A combined circular component automatic press-fitting device, characterized in that: include: A frame structure 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-fit assembly (7) comprises a press-fit base plate (707) mounted on a cylinder rod joint (801) of a hydraulic cylinder (8); a section I pressure housing (708), a sensor mounting partition (722) and a section II pressure housing (709) are mounted in sequence on the bottom of the press-fit base plate (707) from top to bottom; a section I pressure sensor (721) and a section II pressure sensor (723) are mounted in the section I pressure housing (708) and the section II pressure housing (709), respectively; the section I pressure sensor (721) and the section II pressure sensor (723) are both fixedly connected to the sensor mounting partition (722); a section I pressure rod (711) is assembled on the bottom of the section I pressure sensor (721), and a section II pressure rod (712) is assembled on the bottom of the section II pressure sensor (723); and the section I pressure rod (711) and the section II pressure rod (712) are both assembled with a polyurethane pressure plate (9).

2. According to claim 1, a combined circular component automatic press-fitting device is characterized in that: The section I pressure sensor (721) is a common precision pressure sensor, and the section II pressure sensor (723) is a high precision pressure sensor.

3. According to claim 1, a combined circular component automatic press-fitting device is characterized in that: The press-fitting assembly (7) further comprises: a press-fitting shell (710) installed at the bottom of the section II pressure shell (709), a press-fitting rod I (717), a press-fitting rod II (718), a press-fitting rod III (719) and a press-fitting rod IV (720) installed inside the press-fitting shell (710), and a press-fitting buffer I assembled with the press-fitting rod I (717), the press-fitting rod II (718), the press-fitting rod III (719) and the press-fitting rod IV (720). The invention relates to a pressure spring (713), a pressure-mounted buffer spring (714), a pressure-mounted buffer spring (715) and a pressure-mounted buffer spring (716); the pressure-mounted buffer spring (713), the pressure-mounted buffer spring (714), the pressure-mounted buffer spring (715) and the pressure-mounted buffer spring (716) are assembled with a polyurethane pressure plate (9); and the pressure rod (711) and the pressure rod (712) are slidably installed through the interior of the pressure-mounted housing 710.

4. According to claim 1, a combined circular component automatic press-fitting device is characterized in that: The press-fitting workbench (2) comprises: a support frame structure, a workbench panel (205) mounted on the upper end of the support frame structure, a workbench pressure plate (206) mounted on the workbench panel (205) via a panel buffer spring, a plurality of contoured clamping claws (207) uniformly distributed on the circumference of the workbench pressure plate (206) and installed on the workbench panel (205) with the center of the circle of the workbench pressure plate (206) as the center, and a contoured clamping claw linkage assembly connected to the bottom surface of the workbench pressure plate (206) and used to drive each contoured clamping claw (207) to move synchronously.

5. The combined circular component automatic press-fitting device according to claim 4 is characterized in that: The contoured clamping jaw linkage assembly comprises: a pressure plate center axis (208), a control disc (209) and a conical pressing sleeve (210) which are sequentially installed at the bottom of a workbench pressure plate (206) from top to bottom, a plurality of clamping jaw base plates (211) which are installed at the bottom of a workbench panel (205) and connected to the pin shafts of corresponding contoured clamping jaws (207), a plurality of clamping jaw levers (212) which are installed at the lower ends of corresponding contoured clamping jaws (207) and contact the control disc (209) or the conical pressing sleeve (210), and a clamping jaw spring (213) which is installed between the contoured clamping jaw (207) and the clamping jaw base plate (211).

6. The combined circular component automatic press-fitting device according to claim 5, characterized in that: It also includes a frame back plate (6), wherein the frame back plate (6) is mounted on the frame structure; the press-fit assembly (7) further includes a press-fit back plate (701) slidably mounted on the frame back plate (6), and the press-fit substrate (707) is mounted on the press-fit back plate (701).

7. The combined circular component automatic press-fitting device according to claim 6, characterized in that: It also includes a clamping reinforcement component, which includes: a linkage plate (702) installed on the lower side of the press-fit back plate (701), a wedge coupling (218) and a main shaft wedge (219) installed from top to bottom at the bottom of the conical press sleeve (210), a pushing component installed inside the support frame structure, a rotating arm wedge (220) with one end installed at the output end of the pushing component and the other end of the rotating arm wedge (220) being parallel to the main shaft wedge (219) with the wedge inclined surface, and a transmission component with one end connected to the linkage plate (702) and the other end connected to the input end of the pushing component.

8. The combined circular component automatic press-fitting device according to claim 7, characterized in that: The transmission assembly comprises: a through-long slot hole (604) formed on the frame back plate (6), a pressure connection guide sleeve (605) passing through the through-long slot hole (604) and connected to the linkage plate (702), and a pressure connection rod (606) having one end connected to the pressure connection guide sleeve (605) via a guide sleeve buffer spring and the other end connected to the input end of the push assembly.

9. A combined circular component automatic press-fitting device according to claim 7 or 8, characterized in that: The pushing component is a scissor-type telescopic mechanism.

10. A combined circular component automatic press-fitting device according to any one of claims 1 to 8, characterized in that: A frame bottom plate (1) is installed at the bottom of the press-fitting workbench (2).

11. The combined circular component automatic press-fitting device according to claim 10, characterized in that: A logistics roller conveyor (11) is also installed on the press-fitting workbench (2).

12. The combined circular component automatic press-fitting device according to claim 10, characterized in that: A protective cover (10) is also installed outside the frame structure and the logistics roller conveyor (11), and a counter-radiation safety grating is installed on the protective cover (10).

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