Rubber cup press-fitting method and device

Abstract

A rubber cup press-fitting method and device. The rubber cup press-fitting device comprises a liftable mounting frame, a guide member arranged on the mounting frame and a power execution assembly, wherein a press-fitting execution assembly is connected to an output end of the power execution assembly. By means of eccentric arrangement of a rubber cup (200) relative to a threading guide channel and single-side press-fitting of the rubber cup (200), the rubber cup (200) can reach a mounting position in an inclined posture within the threading guide channel, and an inclined portion of the rubber cup (200) is then sequentially press-fitted and reset in the extension direction of an included angle, such that the rubber cup (200) is reset and is embedded in an embedding groove (630) under the action of its own elasticity, thereby avoiding deformation generated during radial shrinkage of the rubber cup (200), and ensuring the assembly accuracy of the rubber cup (200); and by means of an auxiliary reset device during the press-fitting process, the horizontal reset smoothness of the rubber cup (200) during the press-fitting process is improved.

Description

Leather cup pressing method and device

[0001] Cross-references

[0002] This application refers to Chinese patent application No. 202311858770.5, filed on December 30, 2023, entitled “A Leather Cup Pressing Method and Device,” which is incorporated herein by reference in its entirety. Technical Field

[0003] The present application relates to the technical field of brake booster system assembly, and in particular to a cup press-fitting method and device. Background Art

[0004] The automobile brake assist system is an important component of the modern automobile braking system. It is mainly used to reduce the force required by the driver when stepping on the brake pedal and improve the efficiency and stability of the braking system.

[0005] In the existing technology, the production of automobile brake assist systems mainly adopts manual or semi-automatic assembly methods. With the continuous development and application of intelligent and automated technologies, automated assembly has become a trend in the manufacturing industry with broad prospects and application value. The fully automatic assembly of automobile brake assist systems has also become an effective means for current automobile manufacturers to enhance competitiveness, reduce costs and improve product quality.

[0006] The inventors have discovered that the related art has at least the following problems: During the assembly of the brake assist system, a rubber cup must be installed inside the valve hole of the valve block to ensure its sealing performance. Currently, the rubber cup is assembled mainly by manual assembly and automatic machine assembly. Manual assembly is inefficient, and in most automatic machine assembly solutions, the rubber cup is deformed radially to reduce its volume and facilitate its transfer to the groove inside the valve hole. Due to the limited resilience of the rubber cup itself, the rubber cup is easily bent and damaged during the radial deformation process, which reduces its fit with the groove and adversely affects the overall performance of the valve body.

[0007] Summary of the Invention

[0008] The purpose of some embodiments of the present application is to provide a method for pressing a leather cup, comprising:

[0009] A through-channel matching the inner diameter of the valve hole is established, wherein the extending end of the through-channel is flush with the proximal end of the through-channel relative to the embedding groove; a support limit is set at the proximal end of the leather cup relative to the through-channel; the leather cup is set eccentric to the through-channel on the outside of the through-channel; a unilateral force is applied to the end of the leather cup close to the central axis of the through-channel, driving the leather cup to pass through the through-channel in an inclined posture and move to the corresponding position of the embedding groove close to the end close to the central axis of the through-channel; pressure is applied to the leather cup in a predetermined direction close to one side of the support limit, driving the leather cup to reset from the inclined posture to be flush with the embedding groove; wherein the predetermined direction is the extension direction of the leather cup close to the central axis of the through-channel to the central axis of the through-channel.

[0010] For example, in the above-mentioned method for pressing a leather cup, after establishing a through-channel that matches the inner diameter of the valve hole, the method further includes adjusting the relative position of the through-channel in the valve hole based on the position of the embedding groove.

[0011] For example, in the above-mentioned method for pressing a leather cup, for pressing a leather cup with multiple grooves in a single valve hole, the pressing sequence is that the length of the through-channel extending into the valve hole gradually decreases.

[0012] For example, in the above-mentioned method for pressing a leather cup, before applying a unilateral force to one end of the leather cup close to the central axis of the through-channel, the method further includes performing an oil spray lubrication treatment on the surface of the leather cup.

[0013] For example, in the above-mentioned method for pressing a leather cup, after driving the leather cup in an inclined posture through the guide channel and moving one end close to the central axis of the guide channel to a position corresponding to the embedding groove, the method further includes:

[0014] A radial force is applied to one end of the leather cup close to the central axis of the threading channel, driving the central axis of the leather cup to move toward the side close to the central axis of the threading channel.

[0015] The present application also provides a method and device for pressing a leather cup, wherein the method for pressing a leather cup as described above is adopted, comprising a lifting adjustment mechanism and a pressing unit fixedly mounted on the lifting end of the lifting adjustment mechanism;

[0016] The press-fitting unit includes a mounting frame fixedly connected to the lifting end of the lifting adjustment mechanism, a guide member fixedly arranged on the mounting frame, and a power actuator assembly, wherein the output end of the power actuator assembly is connected to the press-fitting actuator assembly, and a guide channel for the press-fitting actuator assembly is provided through the guide member;

[0017] The press-fitting actuator assembly includes a positioning core shaft, a middle pressure piece, and a side pressure piece, which are respectively driven to rise and fall by a power actuator assembly. The positioning core shaft is coaxial with the guide piece and a limit piece is fixedly provided on the outer circumference. The limit piece and the positioning core shaft are provided with a slot for installing a leather cup near one end of the installation valve;

[0018] Among them, the outer diameter of the guide part matches the inner diameter of the valve hole of the installed valve, the intermediate pressure part and the side pressure part can perform lifting and lowering actions along the outer cylindrical surface of the positioning core shaft, the limit part and the side pressure part are located on the opposite side of the intermediate pressure part, and the projections of the intermediate pressure part, the limit part and the side pressure part on the horizontal plane are specifically a ring that is coaxial with the positioning core shaft and matches the end face of the leather cup.

[0019] For example, in the above-mentioned leather cup press-fitting device, the power execution assembly includes a first lifting cylinder, a second lifting cylinder, and a third lifting cylinder fixedly arranged on the mounting frame;

[0020] The telescopic end of the first lifting cylinder is fixedly connected to the positioning core shaft, the telescopic end of the second lifting cylinder is fixedly connected to the side pressure member, and the telescopic end of the third lifting cylinder is fixedly connected to the middle pressure member.

[0021] For example, in the above-mentioned leather cup pressing device, the positioning core shaft includes a connecting shaft portion fixedly connected to the telescopic end of the first lifting cylinder, and a limiting end portion fixedly arranged at an end of the connecting shaft portion away from the first lifting cylinder;

[0022] Wherein, a slot for installing the leather cup is formed between the limiting end and the limiting member.

[0023] For example, in the above-mentioned leather cup press-fitting device, a receiving cavity communicating with the card slot is provided in the connecting shaft portion, and a support plate is elastically hingedly provided in the receiving cavity;

[0024] The limiter is provided with a through groove that penetrates the accommodating cavity, and the end of the support plate away from the installation valve can pass through the through groove to the outside of the limiter, and the end close to the installation valve can swing radially along the connecting shaft in the clamping groove;

[0025] The swing plane of the support plate is located on the eccentric symmetry plane of the leather cup. The support plate is provided with a guide bevel capable of abutting against the medium pressure part at one end away from the mounting valve, and a reset protrusion capable of abutting against the inner ring of the leather cup at one end close to the mounting valve.

[0026] For example, in the above-mentioned leather cup press-fitting device, the intermediate pressure member includes a connecting slide fixedly connected to the telescopic end of the third lifting cylinder and two pressure rods symmetrically and fixedly arranged on one side of the connecting slide close to the installation valve;

[0027] The connecting sliding portion can slide along the outer circumferential surface of the limiting member and abut against the guiding inclined portion of the support plate, and the two pressing rods are respectively located at the gaps on both sides of the limiting member and the side pressure member. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0029] FIG1 is a structural diagram of a cup assembly station according to an embodiment of the present application;

[0030] FIG2 is a structural diagram of the cup assembly station according to an embodiment of the present application with the “outer box 120” hidden;

[0031] FIG3 is a structural diagram of the “lifting and lowering adjustment mechanism 400” in the cup assembly station according to an embodiment of the present application;

[0032] FIG4 is a schematic structural diagram of the “press-fitting unit 300” of the cup press-fitting device according to an embodiment of the present application;

[0033] FIG5 is a schematic structural diagram of the “press-fitting unit 300” of the cup press-fitting device according to an embodiment of the present application;

[0034] FIG6 is a schematic structural diagram of a cup press-fitting positioning device according to an embodiment of the present application;

[0035] FIG7 is a cross-sectional view of the structure of the cup press-fitting positioning device according to an embodiment of the present application;

[0036] FIG8 is a schematic structural diagram of a “positioning block 350” in a cup press-fitting positioning device according to an embodiment of the present application;

[0037] FIG9 is a schematic structural diagram of the “first guide member 330 ” in the cup press-fitting positioning device according to an embodiment of the present application;

[0038] FIG10 is a schematic structural diagram of the “press-fitting execution assembly” portion of the cup press-fitting device according to an embodiment of the present application;

[0039] FIG11 is a cross-sectional view of the structure of the “press-fitting actuator” portion of the cup press-fitting device according to an embodiment of the present application;

[0040] FIG12 is an enlarged schematic diagram of the structure of the “positioning mandrel limiting end portion 3702 ” of the cup press-fitting device according to an embodiment of the present application;

[0041] FIG13 is a schematic structural diagram of the “intermediate pressure member 371 ” in the cup press-fitting device according to an embodiment of the present application;

[0042] FIG14 is a schematic structural diagram of the “shaping unit 500” portion of the cup shaping device according to an embodiment of the present application;

[0043] FIG15 is a schematic structural diagram of the “shaping unit 500” portion of the cup shaping device according to an embodiment of the present application;

[0044] FIG16 is a cross-sectional view of the structure of the “second guide member 520 ” in the cup shaping device according to an embodiment of the present application;

[0045] FIG17 is a schematic structural diagram of a “shaping member 560” in a cup shaping device according to an embodiment of the present application;

[0046] FIG18 is a structural cross-sectional view of the “installation valve 600 ” according to an embodiment of the present application.

[0047] Figure 1: Workbench 110, outer box 120, positioning tool 130, leather cup 200, press unit 300, first mounting frame 301, first support seat 302, first lifting cylinder 311, second lifting cylinder 312, third lifting cylinder 313, first connecting member 314, second connecting member 315, first guide rail 316, second guide rail 317, first injector 321, second injector 322, first guide member 330, fixed Positioning part 331, guide part 332, guide cavity 333, deflection guide groove 334, feeding device 340, feeding cylinder 341, feeding push plate 342, guide plate 343, discharge port 344, feeding slide rail 345, positioning block 350, sealing ring 351, sealing groove 352, first oil circuit 353, perforation 354, slide groove 355, second oil circuit 356, positioning cylinder 361, positioning push plate 362, positioning mandrel 370, connecting shaft Part 3701, limit end 3702, accommodating cavity 3703, elastic member 3704, intermediate pressure member 371, connecting slide 3711, pressure rod 3712, limit member 372, side pressure member 373, support plate 374, through slot 375, lifting adjustment mechanism 400, base 410, lifting motor 420, screw 430, lifting platform 440, lifting slide rail 450, mounting block 460, shaping unit 500, second support seat 511 , the second mounting frame -512, the connecting frame -513, the second guide member -520, the driving motor -530, the driving wheel -531, the telescopic cylinder -540, the driven wheel -541, the guide rod -551, the slide -552, the top plate -553, the shaping member -560, the telescopic part -561, the cavity -562, the retracting plate -563, the shaping convex part -564, the spline shaft -570, the belt -580, the mounting valve -600, the valve body -610, the valve hole -620, and the embedded groove -630. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of this application more clear, some embodiments of this application are further described in detail below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain this application and are not used to limit this application.

[0049] The following is a detailed description of the leather cup pressing method and device provided in the embodiments of the present application through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0050] As shown in Figures 1 to 17, an embodiment of the present application provides a leather cup assembly station, including a workbench 110, two positioning fixtures 130 fixedly set on the workbench 110 and used to position and install the valve 600, a leather cup pressing device installed on the workbench 110 and located at corresponding positions of the two positioning fixtures 130, and a leather cup shaping device.

[0051] Among them, two lifting adjustment mechanisms 400 are fixedly provided on the workbench 110 at corresponding positions of the two positioning toolings 130. The leather cup pressing device includes one of the lifting adjustment mechanisms 400 and a pressing unit 300 installed on the lifting end of the lifting adjustment mechanism 400. The leather cup shaping device includes another lifting adjustment mechanism 400 and a shaping unit 500 installed on the lifting end of the lifting adjustment mechanism 400.

[0052] It can be understood that, as shown in Figure 18, the mounting valve 600 includes a valve body 610 and a valve hole 620 arranged on the valve body 610. A plurality of embedding grooves 630 for mounting the leather cup 200 are arranged in an axial array on the inner wall of the valve hole 620. The leather cup pressing device is used to press the leather cup 200 into the embedding groove 630 in the mounting valve 600 at the corresponding position. The leather cup shaping device is used to shape the leather cup 200 after installing the leather cup 200 in the embedding groove 630 in the mounting valve 600 at the corresponding position so that it better fits with the embedding groove 630.

[0053] As shown in FIG1 , the outer box 120 is fixedly mounted on the workbench 110 . The outer box 120 forms a working space for accommodating the cup pressing device and the cup shaping device.

[0054] As shown in Figure 2, the lifting and adjusting mechanism 400 includes a base 410 fixedly set on the workbench 110, a lifting motor 420 is fixedly provided on the base 410, a screw 430 rotatably connected to the base 410 is fixedly provided on the rotating output end of the lifting motor 420, and a lifting platform 440 is threadedly connected to the screw 430.

[0055] The axial direction of the screw rod 430 is along the vertical direction. Two lifting rails 450 are symmetrically and fixedly provided on the base 410 with respect to the screw rod 430 . Two sets of mounting blocks 460 are slidably provided on the two lifting rails 450 .

[0056] The lifting platform 440 and the mounting block 460 are fixedly connected to the pressing unit 300 of the leather cup pressing device or the shaping unit 500 of the leather cup shaping device.

[0057] In an embodiment of the present application, a leather cup assembly station as described above is adopted. When the lifting motor 420 drives the screw 430 to rotate, the lifting platform 440 can perform a lifting action on the screw 430, thereby driving the pressing unit 300 or the shaping unit 500 installed on the lifting platform 440 to lift and adjust the height. At the same time, the mounting block 460 fixedly connected to the pressing unit 300 or the shaping unit 500 moves synchronously on the lifting rail 450 at the corresponding position, thereby ensuring the lifting and lowering stability of the pressing unit 300 or the shaping unit 500.

[0058] It can be understood that the lifting structure of the lifting adjustment mechanism 400 is not limited to the above-mentioned one. For example, a lifting cylinder or a lifting connecting rod structure driven by a power device can be directly adopted. As long as the lifting drive of the pressing unit 300 or the shaping unit 500 can be achieved, it will not be elaborated here.

[0059] As shown in FIG. 1 to FIG. 13 , an embodiment of the present application provides a leather cup press-fitting device, comprising a lifting adjustment mechanism 400 and a press-fitting unit 300 fixedly mounted on the lifting end of the lifting adjustment mechanism 400 .

[0060] The press-fitting unit 300 includes a first mounting frame 301 fixedly connected to the lifting end of the lifting adjustment mechanism 400, a first guide member 330 fixedly arranged on the first mounting frame 301, and a power execution component. The output end of the power execution component is connected to a press-fitting execution component, and a through-channel for the press-fitting execution component is provided in the first guide member 330.

[0061] The press-fitting execution assembly includes a positioning core shaft 370, a middle pressure part 371, and a side pressure part 373, which are respectively driven to rise and fall by the power execution assembly. The positioning core shaft 370 is coaxial with the first guide part 330 and a limit part 372 is fixedly provided on the outer circular surface. The limit part 372 and the positioning core shaft 370 are provided with a card groove for installing the leather cup 200 near one end of the workbench 110.

[0062] Among them, the outer diameter of the first guide member 330 matches the inner diameter of the valve hole 620 of the mounting valve 600, the medium pressure member 371 and the side pressure member 373 can perform lifting and lowering actions along the outer cylindrical surface of the positioning core shaft 370, the limit member 372 and the side pressure member 373 are located on the opposite side of the medium pressure member 371, and the projection of the medium pressure member 371, the limit member 372 and the side pressure member 373 on the horizontal plane is specifically a ring that is coaxial with the positioning core shaft 370 and matches the end face of the leather cup 200.

[0063] During operation, the first guide member 330 of the press-fitting unit 300 is lifted and moved to the corresponding position of the embedded groove 630 of the installation valve 600 through the lifting and adjusting mechanism 400. The lower end of the first guide member 330 is just flush with the upper end of the embedded groove 630, and the leather cup 200 is eccentrically installed in the groove of the limit member 372 and the positioning core shaft 370, that is, the central axis of the leather cup 200 is biased to the side of the side pressure member 373. At this time, the middle pressure member 371 and the side pressure member 373 are located on the side of the groove away from the workbench 110, and the power execution component drives the positioning core shaft 370. 70, the limiting member 372 descends and drives the leather cup 200 to move to the corresponding position of the embedded groove 630. In the process of the positioning core shaft 370 and the limiting member 372 passing through the first guide member 330, the leather cup 200 is in an inclined state under the resistance of the inner wall of the guide channel, thereby reducing the projected area on the horizontal plane so that it can pass through the guide channel. When the positioning core shaft 370 and the limiting member 372 have finished moving, the action execution component drives the intermediate pressure member 371 to descend until it is close to one end of the workbench 110 and the limiting member 372 is close to the workbench 110. One end is flush, and the middle pressure piece 371 can resist the middle of the leather cup 200 during the descent process, so that the middle of the leather cup 200 is converted from an inclined state to a horizontal state. After the middle pressure piece 371 has finished moving, the action execution component drives the side pressure piece 373 to descend until it is flush with the end of the workbench 110 and the limit piece 372 close to the end of the workbench 110. During the descent process, the side pressure piece 373 can resist the area on the side of the leather cup 200 away from the limit piece 372, so that the area on the side of the leather cup 200 away from the limit piece 372 is converted from an inclined state It is in a horizontal state. At this point, the leather cup 200 is completely in a horizontal state. Under the action of the inner wall of the embedding groove 630 and its own elastic force, the leather cup 200 will be embedded in the embedding groove 630 and coaxial with the first guide member 330; after the leather cup 200 is pressed into place, the positioning core shaft 370, the limit member 372, the middle pressure member 371, and the side pressure member 373 are reset under the drive of the power execution component. The height of the pressing unit 300 is adjusted by the lifting and adjusting mechanism 400, and the leather cup 200 can be pressed into the embedding grooves 630 of different heights in the installation valve 600.

[0064] In an embodiment of the present application, the above-mentioned leather cup pressing device is used to eccentrically position the leather cup 200, and the leather cup 200 is pressed into the installation valve 600 through a three-stage drive. During the pressing process, the leather cup 200 is driven in the first stage to pass through the guide channel in an inclined state, reducing its projected area on the horizontal plane, avoiding bending and deformation caused by radial compression of the leather cup 200 in traditional pressing means, and the radial step-by-step horizontal reset of the leather cup 200 is achieved through the second and third stage drives, making the reset of the leather cup 200 smoother and less prone to wrinkles, further improving the structural integrity of the leather cup 200 after pressing, and ensuring the matching accuracy of the leather cup 200 and the installation valve 600.

[0065] As shown in FIG. 4 , the power execution assembly includes a first lifting cylinder 311 , a second lifting cylinder 312 , and a third lifting cylinder 313 fixedly mounted on the first mounting frame 301 .

[0066] Among them, the telescopic end of the first lifting cylinder 311 is fixedly connected to the positioning core shaft 370, the telescopic end of the second lifting cylinder 312 is fixedly connected to the side pressure piece 373, and the telescopic end of the third lifting cylinder 313 is fixedly connected to the middle pressure piece 371.

[0067] It is understandable that the driving form of the power execution component is not limited to the above one, as long as it can realize the lifting and lowering drive of the positioning core shaft 370, the middle pressure part 371, and the side pressure part 373 respectively, which will not be elaborated here.

[0068] As shown in FIG4 , the power execution assembly further includes a first guide rail 316 and a second guide rail 317 fixedly mounted on the first mounting frame 301 and located at positions corresponding to the second lifting cylinder 312 and the third lifting cylinder 313 , respectively.

[0069] Among them, the first guide rail 316 and the second guide rail 317 are coaxial with the positioning core shaft 370, and the first guide rail 316 is slidingly provided with a first connecting member 314 fixedly connected to the side pressure member 373, and the second guide rail 317 is fixedly provided with a second connecting member 315 fixedly connected to the middle pressure member 371.

[0070] It can be understood that the sliding guidance of the first guide rail 316 and the first connecting member 314, and the second guide rail 317 and the second connecting member 315 can improve the lifting and lowering driving stability of the side pressure member 373 and the middle pressure member 371.

[0071] As shown in Figures 10 to 12, the positioning core shaft 370 includes a connecting shaft portion 3701 fixedly connected to the telescopic end of the first lifting cylinder 311 and a limiting end portion 3702 fixedly arranged at one end of the connecting shaft portion 3701 away from the first lifting cylinder 311.

[0072] A slot for mounting the leather cup 200 is formed between the limiting end portion 3702 and the limiting member 372 .

[0073] As shown in Figures 10 to 12, a receiving cavity 3703 connected to the card slot is provided in the connecting shaft portion 3701, a support plate 374 is elastically hinged in the receiving cavity 3703, and a through groove 375 passing through the receiving cavity 3703 is provided on the limiting member 372. The support plate 374 can pass through the through groove 375 to the outside of the limiting member 372 at the end away from the workbench 110, and can swing radially along the connecting shaft portion 3701 in the card slot at the end close to the workbench 110.

[0074] Among them, the swing plane of the support plate 374 is located on the eccentric symmetry plane of the leather cup 200. The support plate 374 is provided with a guide inclined portion that can abut against the intermediate pressure piece 371 at the end away from the workbench 110, and a reset protrusion that can abut against the inner ring of the leather cup 200 at the end close to the workbench 110.

[0075] Initially, the middle pressure piece 371 is located on the side of the support plate 374 away from the workbench 110. Under the action of its own hinged elastic force, the reset protrusion of the support plate 374 close to the workbench 110 does not extend out of the slot, and the guiding inclined portion away from the workbench 110 passes through the through slot 375 to the outside of the limit piece 372; when the leather cup 200 is eccentrically arranged in the slot and the middle pressure piece 371 moves toward the side close to the workbench 110, the middle pressure piece 371 abuts against the guiding inclined portion of the support plate 374 and drives the guiding inclined portion of the support plate 374 to retract to the accommodating cavity 3 In 703, the support plate 374 accumulates elastic potential energy and the reset protrusion close to one end of the workbench 110 contacts the inner ring of the leather cup 200 and drives the leather cup 200 to move away from the side pressure piece 373, that is, during the descending process of the middle pressure piece 371, the leather cup 200 is assisted to be reset by the support plate 374, so that the leather cup 200 can be coaxial with the positioning core shaft 370 during the press-fitting process of the middle pressure piece 371 and the side pressure piece 373; after the press-fitting is completed, the middle pressure piece 371 is reset, and the support plate 374 can be reset under the action of its own hinged elastic force.

[0076] In the embodiment of the present application, the above-mentioned leather cup pressing device is adopted, and the support plate 374 cooperates with the middle pressure piece 371 to realize auxiliary resetting of the leather cup 200 during the segmented pressing process, further improving the horizontal resetting smoothness of the leather cup 200 during the pressing process.

[0077] As shown in FIG. 11 , an elastic member 3704 is fixedly provided between an end surface of the middle pressure member 371 close to the side pressure member 373 and an inner wall of a corresponding side of the accommodating cavity 3703 .

[0078] It is understandable that the elastic member 3704 can be specifically configured as an elastic member such as a columnar spring, a retaining spring, or elastic rubber, as long as the elastic reset of the support plate 374 can be achieved, and details will not be given here.

[0079] As shown in FIG. 13 , the intermediate pressure member 371 includes a connecting slide 3711 fixedly connected to the second connecting member 315 and two pressure rods 3712 symmetrically and fixedly arranged on one side of the connecting slide 3711 close to the workbench 110 .

[0080] The engaging sliding portion 3711 can slide along the outer circumferential surface of the limiting member 372 and abut against the guiding inclined portion of the supporting plate 374 .

[0081] It can be understood that the limiting member 372 and the side pressure member 373 are respectively located on the opposite sides of the middle pressure member 371, and the two pressure rods 3712 are respectively located in the gaps on both sides of the limiting member 372 and the side pressure member 373, thereby achieving pressure on the middle part of the leather cup 200, ensuring that the leather cup 200 is evenly stressed and the horizontal reset is more stable.

[0082] As shown in FIG. 5 , a first supporting seat 302 , which is fixedly connected to the lifting platform 440 and the mounting block 460 , is fixedly provided on the first mounting frame 301 .

[0083] As shown in FIG. 4 and FIG. 5 , the first mounting frame 301 is further provided with an oil spraying assembly for lubricating the surface of the leather cup 200 .

[0084] As shown in FIG. 4 and FIG. 5 , the first mounting frame 301 is further provided with a leather cup press-fitting positioning device for eccentrically positioning the leather cup 200 .

[0085] As shown in Figures 4 to 9, an embodiment of the present application provides a leather cup press-fitting positioning device, including a positioning block 350 fixedly provided on a first mounting frame 301, on which a feeding device 340 and an eccentric positioning mechanism are fixedly provided.

[0086] The positioning block 350 is provided with a through hole 354 for pressing the actuator through. A first guide member 330 is fixedly provided on the end face of the positioning block 350 close to the workbench 110. The first guide member 330 is provided with a guide cavity 333 that is connected to the through hole 354 along the axial direction.

[0087] Among them, the press-fitting execution component is provided with a clamping groove which is coaxial with the guide cavity 333 and can press-fit the leather cup 200 on one side. The first guide member 330 is close to the feeding device 340 and the eccentric positioning mechanism. A deflection guide groove 334 is provided on the end face on one side which is connected to the guide cavity 333 and is eccentric. The feeding device 340 is used to move the leather cup 200 to a corresponding position coaxial with the guide cavity 333. The eccentric positioning mechanism can move the leather cup 200 to the side close to the central axis of the deflection guide groove 334 when the leather cup 200 is installed in the press-fitting execution component.

[0088] In an embodiment of the present application, the above-mentioned leather cup press-fitting positioning device is adopted, and the automatic loading of the leather cup 200 and the initial positioning with the press-fitting execution component are realized through the feeding device 340. The axis offset of the leather cup 200 on the press-fitting execution component is realized through the eccentric positioning mechanism, so that the leather cup 200 can pass through the guide cavity 333 in an approximately elliptical inclined posture during the unilateral press-fitting process, thereby reducing the horizontal projection area of ​​the leather cup 200 and avoiding radial shrinkage deformation. At the same time, under the inclined guiding action of the deflection guide groove 334, the smoothness of the posture change of the leather cup 200 during the press-fitting process is improved, thereby ensuring the structural accuracy of the leather cup 200 after the press-fitting is completed.

[0089] As shown in Figures 4 to 8, the positioning block 350 is provided with a slide groove 355 connected to the through hole 354, and the feeding device 340 includes a feeding cylinder 341 and a guide plate 343 fixedly arranged on the first mounting frame 301, and a loading trough connected to the slide groove 355 is provided in the guide plate 343, and a feeding push plate 342 is fixed on the telescopic end of the feeding cylinder 341, which is slidably arranged in the loading trough of the guide plate 343 and can be slidably connected to the slide groove 355.

[0090] The guide plate 343 is provided with a discharge port 344 that passes through the feeding chute and is used to place the leather cup 200. The feeding push plate 342 can push the leather cup 200 placed in the feeding chute through the discharge port 344 into the slide groove 355 and make it coaxial with the through hole 354.

[0091] It is understandable that when loading, the staff places the leather cup 200 in the loading trough through the discharge port 344, and drives the feeding push plate 342 to move and resist the leather cup 200 through the telescopic driving of the feeding cylinder 341, thereby realizing the axial initial positioning of the leather cup 200 and the press-fitting actuator.

[0092] As shown in FIG. 4 to FIG. 7 , the feeding device 340 further includes a feeding rail 345 fixedly connected to the first mounting frame 301 , and the feeding push plate 342 is slidably connected to the feeding rail 345 .

[0093] It can be understood that the sliding cooperation between the feeding slide rail 345 and the feeding push plate 342 can improve the stability of the pushing action of the feeding push plate 342.

[0094] As shown in FIG. 4 to FIG. 8 , the eccentric positioning mechanism includes a positioning cylinder 361 fixedly provided on the positioning block 350 , and a positioning push plate 362 slidably connected to the slide groove 355 is fixedly provided on the telescopic end of the positioning cylinder 361 .

[0095] It can be understood that when the feeding device 340 moves the leather cup 200 into the slide groove 355 and makes it coaxial with the through hole 354, the press-fitting execution assembly passes through the leather cup 200 and the slot corresponds to the position of the leather cup 200. At this time, the feeding push plate 342 is reset, and the positioning push plate 362 is driven by the positioning cylinder 361 to move and push the leather cup 200, so that the leather cup 200 and the central axis of the press-fitting execution assembly are offset, thereby realizing the unilateral press-fitting of the leather cup 200.

[0096] As shown in FIG. 7 , one end of the positioning push plate 362 and / or the feeding push plate 342 close to the through hole 354 is configured to be in a concave arc shape that matches the outer circumferential shape of the leather cup 200 .

[0097] As shown in FIG. 4 to FIG. 8 , an oil spraying assembly is also included for performing oil spraying lubrication on the inner leather cup 200 of the positioning block 350 .

[0098] As shown in FIG. 4 to FIG. 8 , the oil injection assembly includes two first oil injectors 321 fixedly mounted on the positioning block 350 , and the oil injection ports of the two first oil injectors 321 are connected to the inner wall of the chute 355 , respectively, to form two first oil passages 353 .

[0099] The communicating ports of the two first oil passages 353 and the slide groove 355 are symmetrical about the central axis of the through hole 354 , and the first oil injector 321 can spray oil to lubricate the outer peripheral surface of the leather cup 200 through the first oil passages 353 .

[0100] In an embodiment of the present application, the above-mentioned leather cup press-fitting positioning device is adopted, and an oil injection assembly is set on the positioning block 350 to achieve surface lubrication of the leather cup 200. During the press-fitting process of the leather cup 200, the friction between the leather cup 200 and the surface of the first guide member 330 can be greatly reduced, which not only avoids the generation of friction wrinkles on the leather cup 200, but also facilitates the horizontal elastic reset of the leather cup 200 after the leather cup 200 reaches the corresponding position of the embedding groove 630, thereby further improving the assembly accuracy of the leather cup 200.

[0101] It is understandable that the number of the first oil injector 321 and the connecting openings of the first oil circuit 353 and the slide groove 355 is not limited to the above-mentioned one. In order to ensure uniform oiling of the outer peripheral surface of the leather cup 200, multiple connecting openings of the first oil circuit 353 and the slide groove 355 can be set in a circumferential annular array around the leather cup 200. As long as the lubrication effect of the outer peripheral surface of the leather cup 200 can be guaranteed, it will not be elaborated here.

[0102] As shown in Figures 4 to 8, the oil injection assembly also includes a second oil injector 322 fixedly arranged on the first mounting frame 301, and a plurality of second oil passages 356 connected to the oil injection port of the second oil injector 322 are provided between the positioning block 350 and the inner wall of the slide groove 355 away from the workbench 110.

[0103] The plurality of second oil passages 356 are arranged in a circular array about the central axis of the through hole 354 , and the second oil injector 322 can spray oil to lubricate the top of the leather cup 200 through the second oil passages 356 .

[0104] As shown in FIG. 6 , a sealing groove 352 surrounding the through-hole 354 and coaxial with the through-hole 354 is provided between the positioning block 350 and the first mounting frame 301 , and a sealing ring 351 is embedded in the sealing groove 352 .

[0105] The second oil passage 356 is located between the through hole 354 and the sealing groove 352 . The sealing ring 351 abuts against the first mounting frame 301 and the bottom wall of the sealing groove 352 at both axial ends of the through hole 354 .

[0106] It is understandable that the oil injection assembly between the positioning block 350 and the first mounting frame 301 can be sealed by the sealing ring 351 to avoid oil leakage and ensure the oil injection effect.

[0107] 9 , the first guide member 330 includes a positioning portion 331 fixedly disposed on the end surface of the positioning block 350 close to the workbench 110 , and a guide portion 332 fixedly disposed on an end of the positioning portion 331 away from the positioning block 350 and coaxial with the positioning portion 331 .

[0108] The guide cavity 333 is provided through the positioning portion 331 and the guide portion 332 , and the deflection guide groove 334 is provided on an end surface of the positioning portion 331 away from the guide portion 332 and communicates with the guide cavity 333 .

[0109] The embodiment of the present application provides a cup press-fitting method, and the cup press-fitting device adopts the cup press-fitting method, comprising: step S1, establishing a through-channel matching the inner diameter of the valve hole 620, wherein the extending end of the through-channel is flush with the proximal end of the embedding groove 630 relative to the through-channel; step S2, setting a support limit on the cup 200 relative to the proximal end of the through-channel; step S3, setting the cup 200 eccentric to the through-channel when the cup 200 is outside the through-channel; step S4, applying a unilateral force to the end of the cup 200 close to the central axis of the through-channel, driving the cup 200 to pass through the through-channel in an inclined posture and move the end close to the central axis of the through-channel to the corresponding position of the embedding groove 630; step S5, sequentially applying pressure to the cup 200 in a predetermined direction close to the support limit, driving the cup 200 to return from the inclined posture to a position perpendicular to the through-channel;

[0110] The predetermined direction is the extending direction from one end of the leather cup 200 close to the central axis of the through-channel to the central axis of the through-channel;

[0111] In an embodiment of the present application, the above-mentioned leather cup press-fitting method is adopted. Through the eccentric setting of the leather cup 200 and the guide channel and the unilateral press-fitting, the leather cup 200 can reach the installation position in the guide channel in an inclined posture. At the same time, the inclined part of the leather cup 200 is press-fitted and reset in sequence along the extension direction of the angle, so that the leather cup 200 is reset and embedded in the embedding groove 630 under the action of its own elasticity, avoiding the deformation caused by the radial contraction of the leather cup 200 and ensuring the assembly accuracy of the leather cup 200.

[0112] Step S1 further includes adjusting the relative position of the through-channel in the valve hole 620 based on the position of the embedding groove 630 .

[0113] Among them, for the press-fitting of the leather cup 200 with multiple embedding grooves 630 in a single valve hole 620, the press-fitting sequence is that the length of the guide channel extending into the valve hole 620 gradually decreases.

[0114] It is understandable that since there is still an assembly error between the leather cup 200 and the embedded groove 630 after the press-fitting is completed, the subsequent press-fitting cannot interfere with the leather cup 200 that has been press-fitted, thereby avoiding damage to the press-fitting execution component to the leather cup 200 that has been press-fitted.

[0115] Before step S4, the surface of the leather cup 200 is subjected to an oil spray lubrication treatment.

[0116] Wherein, after step S4, the method further includes applying a radial force to the end of the leather cup 200 close to the central axis of the threading channel, so as to drive the central axis of the leather cup 200 to move toward the side close to the central axis of the threading channel.

[0117] As shown in Figures 1, 2, and 14 to 18, the embodiment of the present application provides a leather cup shaping device, including a lifting adjustment mechanism 400 and a shaping unit 500 fixedly installed on the lifting end of the lifting adjustment mechanism 400.

[0118] The shaping unit 500 includes a second mounting frame 512 fixedly connected to the lifting end of the lifting adjustment mechanism 400, a second guide member 520 fixedly set on the second mounting frame 512 and with an outer diameter matching the inner diameter of the valve hole 620, and a shaping member 560 for shaping the leather cup 200. A positioning channel is provided through the second guide member 520, and the shaping member 560 can be telescopically arranged in the positioning channel and can rotate along the central axis of the positioning channel.

[0119] Among them, a shaping execution part is provided at one end of the shaping member 560 away from the second mounting frame 512. When the shaping member 560 is in a contracted state, the shaping execution part is located in the positioning channel. When the shaping member 560 is in an open state, the shaping execution part is located on the side of the positioning channel away from the second mounting frame 512 and the outer diameter matches the inner diameter of the leather cup 200.

[0120] During operation, the second guide member 520 of the shaping unit 500 is lifted and moved to the corresponding position of the embedding groove 630 of the installation valve 600 through the lifting and adjusting mechanism 400, and the shaping member 560 is in a retracted state. The lower end of the positioning channel of the second guide member 520 is just flush with the upper end of the embedding groove 630. At this time, the shaping member 560 extends out of the positioning channel, and the shaping execution part is located at the corresponding position of the leather cup 200 and opens to contact the inner ring of the leather cup 200. Then the shaping member 560 rotates to a predetermined angle, and the shaping execution end contacts the inner ring of the leather cup 200 and completely grinds the leather cup 200 into the embedding groove 630, completing the shaping action of the leather cup 200. After the shaping is completed, the shaping member 560 retracts into the positioning channel again, and the above-mentioned shaping process is repeated as the second guide member 520 is lifted and lowered.

[0121] In an embodiment of the present application, a leather cup shaping device as described above is adopted, and the leather cup 200 in the embedded groove 630 at different positions can be shaped by lifting and lowering the lifting and lowering adjustment mechanism 400. Since the shaping member 560 is telescopically arranged in the positioning channel, it will not interfere with the lifting and lowering positioning of the second guide member 520. When the second guide member 520 is positioned, the shaping member 560 extends out of the positioning channel and contacts the inner ring of the leather cup 200 through the shaping execution part. As the shaping execution part rotates, the leather cup 200 can be completely ground into the embedded groove 630, thereby improving the pressing accuracy of the leather cup 200.

[0122] It is understandable that, for shaping the leather cup 200 with multiple embedding grooves 630 in a single valve hole 620 , the shaping sequence is that the length of the positioning channel extending into the valve hole 620 gradually increases.

[0123] It is understandable that since there is still an assembly error between the leather cup 200 and the embedding groove 630 after the press-fitting is completed, the subsequent shaping cannot interfere with the unshaped leather cup 200, thereby avoiding the second guide member 520 from causing damage to the unshaped leather cup 200.

[0124] As shown in FIG. 14 and FIG. 15 , a telescopic driving device for driving the shaping member 560 to extend and retract and a rotation driving device for driving the shaping member 560 to rotate are fixedly provided on the second mounting frame 512 .

[0125] As shown in Figures 14 and 15, the rotation drive device includes a drive motor 530 fixedly arranged on the second mounting frame 512, a driving wheel 531 fixedly arranged on the rotation output end of the drive motor 530, and a driven wheel 541 rotatably arranged on the second mounting frame 512 and coupled to the shaping member 560.

[0126] A belt 580 is wound between the driving pulley 531 and the driven pulley 541 .

[0127] It is understandable that when the driving motor 530 drives the driving wheel 531 to rotate, the driving wheel 531 drives the driven wheel 541 to rotate through the belt 580, and when the driven wheel 541 rotates, it can drive the shaping member 560 to rotate to achieve a rotational shaping action.

[0128] As shown in Figures 14 and 15, the telescopic drive device includes a telescopic cylinder 540 fixedly mounted on the second mounting frame 512, and a spline shaft 570 rotatably mounted on the telescopic end of the telescopic cylinder 540 and fixedly connected to the shaping member 560.

[0129] The spline shaft 570 is coaxial with the driven wheel 541 and is spline-connected.

[0130] It can be understood that when the telescopic cylinder 540 drives the spline shaft 570 to extend and retract, the spline shaft 570 can drive the shaping member 560 to extend and retract in the second guide member 520 to achieve the conversion between the contracted state and the open state. At the same time, the spline shaft 570 is spline-connected to the driven wheel 541, so that the torque of the driven wheel 541 can be transmitted to the shaping member 560, thereby realizing the rotational drive of the shaping member 560.

[0131] It can be understood that the structure and coordination form of the rotary drive device and the telescopic drive device are not limited to the above-mentioned one. For example, the telescopic drive device can also be configured to drive the rotary drive device and the shaping member 560 to rise and fall synchronously. As long as the telescopic and rotational drive of the shaping member 560 can be realized, it will not be elaborated here.

[0132] As shown in FIG14 and FIG15 , a plurality of guide rods 551 are fixedly provided on the end surface of the second mounting frame 512 away from the second guide member 520 , and a top plate 553 is fixedly provided on the end surface of the plurality of guide rods 551 away from the second mounting frame 512 .

[0133] The telescopic cylinder 540 is fixedly arranged on the top plate 553 , and a slide 552 slidably connected to the guide rod 551 is fixedly provided on the telescopic end of the telescopic cylinder 540 .

[0134] It is understandable that when the telescopic cylinder 540 drives the shaping member 560 to extend or retract, the slide 552 can be moved and guided by the guide rod 551, thereby improving the telescopic stability of the shaping member 560.

[0135] As shown in FIG. 14 to FIG. 16 , a connecting frame 513 is fixedly provided on the end surface of the second mounting frame 512 close to the mounting valve 600 , and the second guide member 520 is fixedly provided on the connecting frame 513 .

[0136] As shown in FIG. 14 to FIG. 17 , the shaping member 560 includes a telescopic portion 561 fixedly connected to the spline shaft 570 and a shaping execution end.

[0137] The shaping execution end includes a plurality of retracting plates 563 fixedly arranged on one end of the telescopic portion 561 away from the connecting frame 513 and a shaping protrusion 564 fixedly arranged on one end of the retracting plates 563 away from the telescopic portion 561 .

[0138] Among them, multiple expansion and retraction plates 563 are arranged in a circular array about the central axis of the telescopic part 561, and the shaping protrusion 564 protrudes outward relative to the expansion and retraction plates 563 toward the side away from the central axis of the telescopic part 561 and the outer diameter matches the inner diameter of the leather cup 200.

[0139] In an embodiment of the present application, a leather cup shaping device as described above is adopted, and the shaping execution end is composed of a plurality of retracting and expanding plates 563. Since there are gaps between the plurality of retracting and expanding plates 563, when the shaping member 560 is in a contracted state and the shaping protrusion 564 contacts the inner wall of the positioning channel, the retracting and expanding plates 563 can be elastically deformed to be radially contracted.

[0140] As shown in FIG. 16 and FIG. 17 , the shaping protrusion 564 is provided with a guiding inclined surface at one end close to the telescopic portion 561 , which contacts and cooperates with the second guide member 520 at one end away from the connecting frame 513 .

[0141] It can be understood that when the shaping member 560 is converted from an open state to a contracted state, the shaping protrusion 564 can automatically retract through the abutment between the guiding slope and the corresponding end of the second guide member 520, thereby ensuring the working stability of the shaping execution end.

[0142] As shown in FIG. 16 and FIG. 17 , a cavity 562 is provided in the telescopic portion 561 along the axial direction.

[0143] It is understandable that by providing the cavity 562 in the telescopic portion 561 , the overall weight of the shaping member 560 can be reduced, thereby reducing the workload of the telescopic drive device and the rotation drive device, and improving the overall stability of the shaping device during operation.

[0144] As shown in FIG. 14 and FIG. 15 , a second supporting seat 511 fixedly connected to the lifting platform 440 and the mounting block 460 is fixedly provided on the second mounting frame 512 .

[0145] This application has at least the following beneficial effects:

[0146] Through the eccentric setting of the leather cup and the threading channel and the one-sided press-fitting, the leather cup can reach the installation position in the threading channel in an inclined posture, and then the inclined part of the leather cup is press-fitted and reset in sequence along the extension direction of the angle, so that the leather cup is reset and embedded in the groove under the action of its own elasticity, avoiding the deformation caused by the radial contraction of the leather cup and ensuring the assembly accuracy of the leather cup. At the same time, during the press-fitting process, the support plate and the intermediate pressure piece cooperate to realize the auxiliary reset of the leather cup in the segmented press-fitting process, further improving the horizontal reset smoothness of the leather cup during the press-fitting process.

[0147] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0148] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A method for press-fitting a leather cup, wherein, Comprising: Establish a threading channel matching the inner diameter of the valve hole, and the extending end of the threading channel is flush with the proximal end of the threading channel relative to the slot; Provide a support limit at the proximal end of the leather cup relative to the threading channel; Set the leather cup to be eccentric with the threading channel on the outside of the threading channel; Apply a unilateral force to one end of the leather cup close to the central axis of the threading channel, drive the leather cup to pass through the threading channel in an inclined posture, and move the end close to the central axis of the threading channel to the corresponding position of the slot; Apply a pressure to the leather cup in a predetermined direction successively towards the side close to the support limit, drive the leather cup to reset from the inclined posture to be flush with the slot; Wherein, the predetermined direction is the extending direction from the end of the leather cup close to the central axis of the threading channel to the central axis of the threading channel.

2. The cup pressing method according to claim 2, wherein, After establishing the threading channel matching the inner diameter of the valve hole, it further includes adjusting the relative position of the threading channel in the valve hole based on the position of the slot.

3. A cup pressing method according to claim 2, wherein, For the press-fitting of leather cups in multiple slots within a single valve hole, the press-fitting sequence is that the length of the threading channel extending into the valve hole gradually decreases.

4. A cup packing method according to claim 1, wherein, Before applying a unilateral force to one end of the leather cup close to the central axis of the threading channel, it further includes performing an oil injection lubrication treatment on the surface of the leather cup.

5. A cup pressing method according to claim 1, wherein, After driving the leather cup to pass through the threading channel in an inclined posture and moving the end close to the central axis of the threading channel to the corresponding position of the slot, it further includes: Apply a radial force to one end of the leather cup close to the central axis of the threading channel, drive the central axis of the leather cup to move towards the side close to the central axis of the threading channel.

6. A cup packing device, wherein, Adopt the leather cup press-fitting method according to any one of claims 1 to 5 above, including a lifting and adjusting mechanism and a press-fitting unit fixedly installed on the lifting end of the lifting and adjusting mechanism; The press-fitting unit includes a mounting frame fixedly connected to the lifting end of the lifting and adjusting mechanism, a guiding member fixedly arranged on the mounting frame, and a power execution assembly. The output end of the power execution assembly is connected with a press-fitting execution assembly, and a threading channel of the press-fitting execution assembly penetrates through the guiding member; The press-fitting execution assembly includes a positioning mandrel, a medium-pressure member, and a side-pressure member that are respectively driven by the power execution assembly to lift and lower. The positioning mandrel is coaxial with the guiding member, and a limiting member is fixedly arranged on the outer cylindrical surface. A clamping slot for installing the leather cup is provided at one end of the limiting member and the positioning mandrel close to the mounting valve; Wherein, the outer diameter of the guiding member matches the inner diameter of the valve hole of the mounting valve. The medium-pressure member and the side-pressure member can perform lifting and lowering actions along the outer cylindrical surface of the positioning mandrel. The limiting member and the side-pressure member are located on the opposite side of the medium-pressure member. The projections of the medium-pressure member, the limiting member, and the side-pressure member on the horizontal plane are specifically an annular shape coaxial with the positioning mandrel and matching the end face of the leather cup.

7. A cup pressing device according to claim 6, wherein, The power execution assembly includes a first lifting cylinder, a second lifting cylinder, and a third lifting cylinder fixedly arranged on the mounting frame; Wherein, the telescopic end of the first lifting cylinder is fixedly connected with the positioning mandrel, the telescopic end of the second lifting cylinder is fixedly connected with the side-pressure member, and the telescopic end of the third lifting cylinder is fixedly connected with the medium-pressure member.

8. A cup packing device according to claim 6 or 7, wherein, The positioning mandrel includes a connecting shaft portion fixedly connected with the telescopic end of the first lifting cylinder and a limiting end portion fixedly arranged at one end of the connecting shaft portion away from the first lifting cylinder; Wherein, a clamping slot for installing the leather cup is formed between the limiting end portion and the limiting member.

9. A cup packing device according to claim 8, wherein, A receiving cavity communicating with the clamping groove is provided in the connecting shaft portion, and a support plate is elastically hinged in the receiving cavity; A through groove communicating with the receiving cavity is provided on the limiting member. One end of the support plate away from the mounting valve can pass through the through groove to the outside of the limiting member, and one end close to the mounting valve can swing radially along the connecting shaft portion in the clamping groove; Wherein, the swinging plane of the support plate is located on the eccentric symmetry plane of the leather cup. One end of the support plate away from the mounting valve is provided with a guiding inclined portion capable of abutting against the medium-pressure member, and one end close to the mounting valve is provided with a reset protrusion capable of abutting against the inner ring of the leather cup.

10. A cup packing device according to claim 9, wherein, The medium-pressure member includes an abutting sliding portion fixedly connected to the telescopic end of the third lifting cylinder and two pressing rods symmetrically and fixedly arranged on one side end of the abutting sliding portion close to the mounting valve; Wherein, the abutting sliding portion can slide along the outer circumferential surface of the limiting member and abut against the guiding inclined portion of the support plate, and the two pressing rods are respectively located at the gaps on both sides of the limiting member and the side pressing member; Wherein, the abutting sliding portion can slide along the outer circumferential surface of the limiting member and abut against the guiding inclined portion of the support plate, and the two pressing rods are respectively located at the gaps on both sides of the limiting member and the side pressing member.

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