A method and device for press-fitting a leather cup

Abstract

The application discloses a leather cup press-fitting method and device, wherein the leather cup press-fitting device comprises a liftable mounting frame, a guide arranged on the mounting frame and a power execution assembly, and the output end of the power execution assembly is connected with a press-fitting execution assembly; in the embodiment of the application, the leather cup press-fitting method and device are adopted, the eccentric setting of the leather cup and the lead-through passage and one-side press-fitting are adopted, the leather cup can reach the mounting position in the lead-through passage in an inclined posture, then the inclined part of the leather cup is sequentially press-fitted and reset along the angle extension direction, the leather cup is reset and embedded in the embedding groove under the action of the elasticity of the leather cup, the deformation caused by the radial contraction of the leather cup is avoided, the assembly precision of the leather cup is ensured, and the auxiliary reset of the leather cup in the segmented press-fitting process is realized through the cooperation of the supporting plate and the medium pressure piece in the press-fitting process, and the smoothness of the horizontal reset of the leather cup in the press-fitting process is further improved.

Description

Technical Field

[0001] This invention relates to the field of brake booster system assembly technology, and in particular to a method and apparatus for press-fitting a brake cup. Background Technology

[0002] The brake assist system is an important component of modern automotive braking systems. It is mainly used to reduce the force required by the driver when pressing the brake pedal, thereby improving the efficiency and stability of the braking system.

[0003] In the current technology, the production of automotive brake assist systems is mainly carried out by 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 automated assembly of automotive brake assist systems has also become an effective means for current automakers to enhance competitiveness, reduce costs, and improve product quality.

[0004] During the assembly of a brake booster system, a piston cup needs to be installed inside the valve bore of the valve block to ensure its sealing performance. Currently, piston cup assembly mainly involves two methods: manual assembly and automated machine assembly. Manual assembly is less efficient, while automated machine assembly often involves radially deforming the piston cup to reduce its volume and facilitate its placement in the groove inside the valve bore. However, due to the limited resilience of the piston cup, bending damage can easily occur during radial shrinkage deformation, reducing its fit with the groove and negatively impacting the overall performance of the valve body. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a method and apparatus for press-fitting leather cups that offers high assembly efficiency and ensures precise fit.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions.

[0007] This application provides a method for pressing and fitting leather cups, including:

[0008] Establish a guide channel that matches the inner diameter of the valve orifice, wherein the protruding end of the guide channel is flush with the proximal end of the groove relative to the guide channel;

[0009] A support limit is provided at the proximal end of the leather cup relative to the threading channel;

[0010] The leather cup is positioned off-center from the threading channel on the outside of the threading channel;

[0011] Apply a unilateral force to the end of the leather cup near the central axis of the threading channel, causing the leather cup to pass through the threading channel in an inclined posture and move the end near the central axis of the threading channel to the corresponding position of the groove.

[0012] Apply pressure to the cup in a predetermined direction, close to the support limit side, to move the cup from its tilted position back to be flush with the groove;

[0013] The predetermined direction is the direction of extension from the end of the leather cup near the center axis of the threading channel to the center axis of the threading channel.

[0014] Further specifying, the above-mentioned method for pressing a leather cup includes, after establishing a guide channel that matches the inner diameter of the valve hole, adjusting the relative position of the guide channel within the valve hole based on the position of the groove.

[0015] Further specifying, 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.

[0016] Further specifying, the above-mentioned method for pressing a leather cup includes, before applying a unilateral force to the end of the leather cup near the central axis of the threading channel, a process of spraying oil to lubricate the surface of the leather cup.

[0017] Further specifying, the above-mentioned method for pressing a leather cup, after moving the leather cup in an inclined posture through the guide channel and moving one end near the central axis of the guide channel to the corresponding position in the groove, further includes:

[0018] Apply a radial force to the end of the leather cup near the center axis of the threading channel, causing the center axis of the leather cup to move towards the side closer to the center axis of the threading channel.

[0019] This application also provides a leather cup pressing method and apparatus, wherein the leather cup pressing method described in any of the above-mentioned claims includes a lifting adjustment mechanism and a pressing unit fixedly installed on the lifting end of the lifting adjustment mechanism.

[0020] The pressing unit includes a mounting frame fixedly connected to the lifting end of the lifting adjustment mechanism, a guide fixedly mounted on the mounting frame, and a power execution component. The output end of the power execution component is connected to the pressing execution component, and the guide has a through channel for the pressing execution component.

[0021] The press-fitting execution assembly includes a positioning mandrel, a middle pressure component, and a side pressure component, which are driven to rise and fall by the power execution assembly respectively. The positioning mandrel is coaxial with the guide component and a limiting component is fixedly provided on its outer circular surface. The limiting component and the positioning mandrel are provided with a groove for installing the leather cup at the end near the installation valve.

[0022] The outer diameter of the guide member matches the inner diameter of the valve hole of the valve installation valve. The intermediate pressure member and the side pressure member can perform lifting and lowering actions along the outer circular surface of the positioning mandrel. The limiting member and the side pressure member are located on the opposite side of the intermediate pressure member. The projection of the intermediate pressure member, the limiting member, and the side pressure member on the horizontal plane is specifically an annular shape that is coaxial with the positioning mandrel and matches the end face of the diaphragm.

[0023] Further specifying, in the above-mentioned leather cup pressing device, the power actuation component includes a first lifting cylinder, a second lifting cylinder, and a third lifting cylinder fixedly mounted on the mounting frame;

[0024] The first lifting cylinder has its telescopic end fixedly connected to the positioning mandrel, the second lifting cylinder has its telescopic end fixedly connected to the side pressure component, and the third lifting cylinder has its telescopic end fixedly connected to the middle pressure component.

[0025] Further specifying, in the above-mentioned leather cup pressing device, the positioning mandrel includes a connecting shaft portion fixedly connected to the telescopic end of the first lifting cylinder, and a limiting end portion fixedly disposed at the end of the connecting shaft portion away from the first lifting cylinder;

[0026] The limiting end and the limiting member form a groove for installing the leather cup.

[0027] Further specifying, in the above-mentioned leather cup pressing device, the connecting shaft portion is provided with a receiving cavity communicating with the slot, and a support plate is elastically hinged in the receiving cavity;

[0028] The limiting member is provided with a through groove that communicates with the accommodating cavity. The end of the support plate away from the installation valve can pass through the through groove to the outside of the limiting member, and the end near the installation valve can swing radially along the connecting shaft in the slot.

[0029] The swing plane of the support plate is located on the eccentric symmetrical plane of the cup. The end of the support plate away from the installation valve is provided with a guide slope that can abut against the intermediate pressure component, and the end near the installation valve is provided with a reset protrusion that can abut against the inner ring of the cup.

[0030] Further specifying, in the above-mentioned leather cup pressing device, the intermediate pressure component includes a connecting slide fixedly connected to the telescopic end of the third lifting cylinder and two pressure rods symmetrically and fixedly disposed on the side of the connecting slide near the mounting valve.

[0031] The connecting sliding part can slide along the outer circular surface of the limiting member and abut against the guide slope of the support plate, and the two pressure rods are respectively located at the gaps on both sides of the limiting member and the side pressure member.

[0032] This invention has at least the following beneficial effects:

[0033] By using the eccentric setting of the cup and the guide channel and the single-sided pressing, the cup can reach the installation position in an inclined posture within the guide channel. Then, the inclined part of the cup is pressed and reset sequentially along the included angle extension direction, so that the cup is reset and embedded in the groove under its own elasticity. This avoids the deformation caused by the radial shrinkage of the cup and ensures the assembly accuracy of the cup. At the same time, during the pressing process, the support plate cooperates with the intermediate pressure component to achieve auxiliary reset in the segmented pressing process of the cup, further improving the smoothness of the horizontal reset of the cup during the pressing process. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the leather cup assembly station according to an embodiment of this application;

[0035] Figure 2 This is a structural diagram of the leather cup assembly station in this embodiment of the application, with the "outer box 120" omitted;

[0036] Figure 3 This is a structural schematic diagram of the "lifting and adjusting mechanism 400" in the leather cup assembly station of this application embodiment;

[0037] Figure 4 This is a schematic diagram of the "pressing unit 300" in the leather cup pressing device of this application embodiment;

[0038] Figure 5 This is a schematic diagram of the "pressing unit 300" in the leather cup pressing device of this application embodiment;

[0039] Figure 6 This is a schematic diagram of the structure of the leather cup pressing and positioning device in an embodiment of this application;

[0040] Figure 7 This is a cross-sectional view of the structure of the leather cup pressing and positioning device in an embodiment of this application;

[0041] Figure 8 This is a schematic diagram of the structure of the "positioning block 350" in the leather cup pressing and positioning device of this application embodiment;

[0042] Figure 9 This is a schematic diagram of the structure of the "first guide member 330" in the leather cup pressing and positioning device of this application embodiment;

[0043] Figure 10 This is a schematic diagram of the "pressing execution component" in the leather cup pressing device of this application embodiment;

[0044] Figure 11 This is a structural cross-sectional view of the "pressing execution component" in the leather cup pressing device of this application embodiment;

[0045] Figure 12This is an enlarged structural diagram of the "positioning mandrel limiting end 3702" in the leather cup pressing device of this application embodiment;

[0046] Figure 13 This is a schematic diagram of the structure of the "intermediate pressure component 371" in the leather cup pressing device of this application embodiment;

[0047] Figure 14 This is a schematic diagram of the "shaping unit 500" in the leather bowl shaping device of this application embodiment;

[0048] Figure 15 This is a schematic diagram of the "shaping unit 500" in the leather bowl shaping device of this application embodiment;

[0049] Figure 16 This is a structural cross-sectional view of the "second guide member 520" in the leather cup shaping device of this application embodiment;

[0050] Figure 17 This is a schematic diagram of the structure of the "shaping component 560" in the leather bowl shaping device of this application embodiment;

[0051] Figure 18 This is a structural cross-sectional view of the "installation valve 600" in the embodiments of this application.

[0052] Figure Labels

[0053] Workbench-110, Outer Housing-120, Positioning Fixture-130, Leather Cup-200, Press-fitting Unit-300, First Mounting Frame-301, First Support Base-302, First Lifting Cylinder-311, Second Lifting Cylinder-312, Third Lifting Cylinder-313, First Connector-314, Second Connector-315, First Guide Rail-316, Second Guide Rail-317, First Injector-321, Second Injector-322, First Guide Component-330, Positioning Part- 331. Guide section; 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 passage; 353. Perforation; 354. Slide groove; 355. Second oil passage; 356. Positioning cylinder; 361. Positioning push plate; 362. Positioning mandrel; 370. Connecting shaft section. 3701, Limiting end; 3702, Receiving cavity; 3703, Elastic component; 3704, Central pressure component; 371, Connecting slide; 3711, Pressure rod; 3712, Limiting component; 372, Side pressure component; 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. Second mounting frame-512, connecting frame-513, second guide component-520, drive motor-530, drive wheel-531, telescopic cylinder-540, driven wheel-541, guide rod-551, slide table-552, top plate-553, shaping component-560, telescopic part-561, cavity-562, retracting plate-563, shaping protrusion-564, spline shaft-570, belt-580, mounting valve-600, valve body-610, valve hole-620, groove-630. Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0055] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0056] The method and apparatus for pressing leather cups provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0057] like Figures 1 to 17 As shown, this application provides a leather cup assembly station, including a workbench 110, two positioning fixtures 130 fixedly mounted on the workbench 110 for positioning and installing a valve 600, a leather cup pressing device mounted on the workbench 110 and located at corresponding positions of the two positioning fixtures 130, and a leather cup shaping device.

[0058] Among them, the workbench 110 is also fixed with two lifting adjustment mechanisms 400 at the corresponding positions of the two positioning fixtures 130. The leather cup pressing device includes one lifting adjustment mechanism 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.

[0059] It is understandable that, such as Figure 18 As shown, the installation valve 600 includes a valve body 610 and a valve hole 620 disposed on the valve body 610. Multiple grooves 630 for installing cups 200 are arranged in an axial array on the inner wall of the valve hole 620. The cup pressing device is used to press the cups 200 into the grooves 630 in the corresponding positions of the installation valve 600. The cup shaping device is used to shape the cups 200 after they are installed in the grooves 630 in the corresponding positions of the installation valve 600 so that they fit better with the grooves 630.

[0060] In a preferred embodiment, such as Figure 1 As shown, it also includes an outer housing 120 fixedly mounted on the workbench 110, the outer housing 120 forming a working space for accommodating the leather cup pressing device and the leather cup shaping device.

[0061] In a preferred embodiment, such as Figure 2As shown, the lifting adjustment mechanism 400 includes a base 410 fixedly mounted on the worktable 110, a lifting motor 420 fixedly mounted on the base 410, a screw 430 rotatably connected to the base 410 fixedly mounted on the rotation output end of the lifting motor 420, and a lifting platform 440 threadedly connected to the screw 430.

[0062] The screw 430 is axially aligned with the vertical direction. Two lifting slide rails 450 are symmetrically and fixedly provided on the base 410 about the screw 430. Two sets of mounting blocks 460 are slidably arranged on the two lifting slide rails 450 respectively.

[0063] The lifting platform 440 and the mounting block 460 are fixedly connected to the pressing unit 300 of the cup pressing device or the shaping unit 500 of the cup shaping device.

[0064] In this embodiment, a leather cup assembly station as described above is used. When the lifting motor 420 drives the screw 430 to rotate, the lifting platform 440 can perform lifting actions on the screw 430, thereby driving the pressing unit 300 or shaping unit 500 installed on the lifting platform 440 to adjust its height. At the same time, the mounting block 460, which is fixedly connected to the pressing unit 300 or shaping unit 500, moves synchronously on the corresponding lifting slide rail 450, thereby ensuring the lifting stability of the pressing unit 300 or shaping unit 500.

[0065] It is understandable that the lifting structure of the lifting adjustment mechanism 400 is not limited to the one mentioned above. For example, a lifting cylinder or a lifting linkage structure driven by a power device can be directly adopted, as long as it can achieve the lifting drive of the pressing unit 300 or the shaping unit 500. This will not be elaborated here.

[0066] like Figures 1 to 13 As shown, this application provides a leather cup pressing device, including a lifting adjustment mechanism 400 and a pressing unit 300 fixedly installed on the lifting end of the lifting adjustment mechanism 400.

[0067] The pressing 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 mounted on the first mounting frame 301, and a power execution component. The output end of the power execution component is connected to the pressing execution component, and the first guide member 330 has a through channel for the pressing execution component.

[0068] The press-fitting assembly includes a positioning spindle 370, a middle pressure member 371, and a side pressure member 373, which are driven to rise and fall by the power execution assembly. The positioning spindle 370 is coaxial with the first guide member 330 and a limiting member 372 is fixedly provided on its outer circular surface. The limiting member 372 and the positioning spindle 370 are provided with a slot for installing the leather cup 200 at the end near the worktable 110.

[0069] The outer diameter of the first guide member 330 matches the inner diameter of the valve hole 620 of the mounting valve 600. The intermediate pressure member 371 and the side pressure member 373 can perform lifting and lowering actions along the outer circular surface of the positioning mandrel 370. The limiting member 372 and the side pressure member 373 are located on the opposite side of the intermediate pressure member 371. The projection of the intermediate pressure member 371, the limiting member 372, and the side pressure member 373 on the horizontal plane is specifically an annular shape that is coaxial with the positioning mandrel 370 and matches the end face of the cup 200.

[0070] During operation, the lifting and adjusting mechanism 400 moves the first guide member 330 of the pressing unit 300 to the corresponding position in the groove 630 of the mounting valve 600. The lower end of the guide member 330 through the channel is flush with the upper end of the groove 630. The cup 200 is eccentrically installed in the slots of the limiting member 372 and the positioning spindle 370, that is, the central axis of the cup 200 is biased towards the side pressure member 373. At this time, the intermediate pressure member 371 and the side pressure member 373 are located on the side of the slot away from the worktable 110. The power actuation component drives the positioning spindle 370. 70. The limiting member 372 descends and moves the cup 200 to the corresponding position in the groove 630. During the process of the positioning spindle 370 and the limiting member 372 passing through the first guide member 330, the cup 200 is tilted under the action of the inner wall of the guide channel, thereby reducing its projected area on the horizontal plane and allowing it to pass through the guide channel. After the positioning spindle 370 and the limiting member 372 have finished moving, the action execution component drives the intermediate pressure member 371 to descend until one end close to the worktable 110 and the limiting member 372 are close to the worktable 110. One end is flush with the center pressure component 371, which, during its descent, abuts against the center of the cup 200, causing the center of the cup 200 to change from an inclined state to a horizontal state. After the center pressure component 371 has moved, the actuation component drives the side pressure component 373 to descend until its end near the worktable 110 is flush with the end of the limiting component 372 near the worktable 110. During its descent, the side pressure component 373 abuts against the area of ​​the cup 200's end away from the limiting component 372, causing the area of ​​the cup 200's end away from the limiting component 372 to change from an inclined state. With the cup in a horizontal position, the cup 200 is now completely horizontal. Under the action of the inner wall of the groove 630 and its own elasticity, the cup 200 will be embedded in the groove 630 and coaxial with the first guide member 330. After the cup 200 is pressed in, the positioning spindle 370, the limiting member 372, the intermediate pressure member 371, and the side pressure member 373 are reset under the drive of the power actuation component. The height of the pressing unit 300 can be adjusted by the lifting adjustment mechanism 400, so that the cup 200 can be pressed in the groove 630 at different heights in the installation valve 600.

[0071] In this embodiment, the aforementioned cup pressing device is used to eccentrically position the cup 200 and press the cup 200 into the mounting valve 600 through a three-stage drive. During the pressing process, the first stage drive causes the cup 200 to pass through the guide channel in an inclined state, reducing its projected area on the horizontal plane and avoiding bending deformation caused by radial compression of the cup 200 in traditional pressing methods. The second and third stage drives achieve the radial step-by-step horizontal reset of the cup 200, making the reset of the cup 200 smoother and less prone to wrinkles. This further improves the structural integrity of the cup 200 after pressing and ensures the fitting accuracy between the cup 200 and the mounting valve 600.

[0072] In a preferred embodiment, such as Figure 4 As shown, the power actuation assembly includes a first lifting cylinder 311, a second lifting cylinder 312, and a third lifting cylinder 313, which are fixedly mounted on the first mounting frame 301.

[0073] The telescopic end of the first lifting cylinder 311 is fixedly connected to the positioning spindle 370, the telescopic end of the second lifting cylinder 312 is fixedly connected to the side pressure member 373, and the telescopic end of the third lifting cylinder 313 is fixedly connected to the intermediate pressure member 371.

[0074] It is understandable that the drive form of the power actuator is not limited to the one mentioned above. As long as it can realize the separate lifting and lowering drive of the positioning spindle 370, the intermediate pressure component 371, and the side pressure component 373, it will not be elaborated here.

[0075] In a preferred embodiment, such as Figure 4 As shown, the power actuation assembly also includes a first guide rail 316 and a second guide rail 317, which are fixedly mounted on the first mounting frame 301 and located at the corresponding positions of the second lifting cylinder 312 and the third lifting cylinder 313, respectively.

[0076] The first guide rail 316 and the second guide rail 317 are coaxial with the positioning spindle 370. The first guide rail 316 is slidably provided with a first connecting member 314 that is fixedly connected to the side pressure member 373, and the second guide rail 317 is fixedly provided with a second connecting member 315 that is fixedly connected to the middle pressure member 371.

[0077] It is understandable that the smoothness of the lifting and lowering drive of the side pressure member 373 and the middle pressure member 371 can be improved by 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.

[0078] In a preferred embodiment, such as Figures 10 to 12As shown, the positioning spindle 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 disposed at the end of the connecting shaft portion 3701 away from the first lifting cylinder 311.

[0079] Among them, a groove for installing the leather cup 200 is formed between the limiting end 3702 and the limiting member 372.

[0080] In a preferred embodiment, such as Figures 10 to 12 As shown, the connecting shaft portion 3701 is provided with a receiving cavity 3703 that communicates with the slot. A support plate 374 is elastically hinged in the receiving cavity 3703. The limiting member 372 is provided with a through groove 375 that communicates with the receiving cavity 3703. The end of the support plate 374 away from the worktable 110 can pass through the through groove 375 to the outside of the limiting member 372, and the end near the worktable 110 can swing radially along the connecting shaft portion 3701 in the slot.

[0081] Among them, the swing plane of the support plate 374 is located on the eccentric symmetrical plane of the cup 200. The end of the support plate 374 away from the worktable 110 is provided with a guide slope that can abut against the intermediate pressure member 371, and the end near the worktable 110 is provided with a reset protrusion that can abut against the inner ring of the cup 200.

[0082] Initially, the intermediate pressure component 371 is located on the side of the support plate 374 away from the worktable 110. Under the action of its own hinge elasticity, the reset protrusion of the support plate 374 near the worktable 110 does not extend out of the slot, and the guide slope at the end away from the worktable 110 passes through the through slot 375 to the outside of the limiting component 372. When the cup 200 is eccentrically set in the slot and the intermediate pressure component 371 moves towards the side closer to the worktable 110, the intermediate pressure component 371 abuts against the guide slope of the support plate 374 and drives the guide slope of the support plate 374 to retract into the receiving cavity 3. Inside 703, the support plate 374 accumulates elastic potential energy, and the reset protrusion near the end of the worktable 110 abuts against the inner ring of the cup 200 and drives the cup 200 to move away from the side pressure member 373. That is, during the descent of the middle pressure member 371, the support plate 374 assists in resetting the cup 200, so that the cup 200 can be coaxial with the positioning mandrel 370 during the pressing process of the middle pressure member 371 and the side pressure member 373. After the pressing is completed, the middle pressure member 371 resets, and the support plate 374 can reset under the action of its own hinge elasticity.

[0083] In this embodiment, the above-mentioned leather cup pressing device is used. The support plate 374 cooperates with the intermediate pressure member 371 to achieve auxiliary reset in the segmented pressing process of the leather cup 200, which further improves the smoothness of the horizontal reset of the leather cup 200 during the pressing process.

[0084] In a preferred embodiment, such as Figure 11As shown, an elastic element 3704 is fixedly provided between the end face of the middle pressure member 371 near the side pressure member 373 and the inner wall of the corresponding side of the accommodating cavity 3703.

[0085] It is understandable that the elastic component 3704 can be specifically set as a column spring, snap ring, elastic rubber or other elastic components, as long as it can realize the elastic reset of the support plate 374, which will not be elaborated here.

[0086] In a preferred embodiment, such as Figure 13 As shown, 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 disposed on the side of the connecting slide 3711 near the worktable 110.

[0087] The connecting slide 3711 can slide along the outer circular surface of the limiting member 372 and abut against the guide slope of the support plate 374.

[0088] It is understandable that the limiting member 372 and the side pressing member 373 are located on the opposite side of the middle pressing member 371, and the two pressing rods 3712 are located in the gaps on both sides of the limiting member 372 and the side pressing member 373, so as to achieve the pressing of the middle part of the cup 200, ensuring that the cup 200 is subjected to uniform force and the horizontal reset is more stable.

[0089] In a preferred embodiment, such as Figure 5 As shown, a first support seat 302 is fixedly installed on the first mounting frame 301 and is fixedly connected to the lifting platform 440 and the mounting block 460 respectively.

[0090] In a preferred embodiment, such as Figure 4 , Figure 5 As shown, the first mounting frame 301 is also provided with an oil spraying assembly for applying oil to the surface of the leather cup 200 for lubrication.

[0091] In a preferred embodiment, such as Figure 4 , Figure 5 As shown, the first mounting frame 301 is also provided with a leather cup pressing and positioning device for eccentric positioning of the leather cup 200.

[0092] like Figures 4 to 9 As shown, this application embodiment provides a leather cup pressing and positioning device, including a positioning block 350 fixedly mounted on a first mounting frame 301, and a feeding device 340 and an eccentric positioning mechanism fixedly mounted on the positioning block 350.

[0093] The positioning block 350 is provided with a through hole 354 for the press-fitting execution component to pass through. A first guide 330 is fixedly provided on the end face of the positioning block 350 near the worktable 110. The first guide 330 is provided with a guide cavity 333 communicating with the through hole 354 along the axial direction.

[0094] The pressing execution assembly is provided with a slot that is coaxial with the guide cavity 333 and can press the cup 200 on one side. The first guide member 330 is provided with an eccentric guide groove 334 that is connected to the guide cavity 333 and is eccentric on the end face of the feeding device 340 and the eccentric positioning mechanism. The feeding device 340 is used to move the cup 200 to the corresponding position coaxial with the guide cavity 333. The eccentric positioning mechanism can move the cup 200 towards the side of the central axis of the eccentric guide groove 334 when the cup 200 is installed in the pressing execution assembly.

[0095] In this embodiment, the above-mentioned cup pressing and positioning device is used. The feeding device 340 realizes the automatic feeding of the cup 200 and the initial positioning with the pressing execution component. The eccentric positioning mechanism realizes the axial offset of the cup 200 on the pressing execution component, so that the cup 200 can pass through the guide cavity 333 in an approximately elliptical inclined posture during the single-sided pressing process. This reduces the horizontal projected area of ​​the cup 200 and avoids radial shrinkage deformation. At the same time, under the inclined guiding action of the eccentric guide groove 334, the smoothness of the posture change of the cup 200 during the pressing process is improved, ensuring the structural accuracy of the cup 200 after pressing.

[0096] In a preferred embodiment, such as Figures 4 to 8 As shown, the positioning block 350 is provided with a slide groove 355 communicating with the through hole 354. The feeding device 340 includes a feeding cylinder 341 fixedly mounted on the first mounting frame 301 and a guide plate 343. The guide plate 343 is provided with a feeding groove communicating with the slide groove 355. The telescopic end of the feeding cylinder 341 is fixedly provided with a feeding push plate 342 that is slidably mounted in the feeding groove of the guide plate 343 and can be slidably connected with the slide groove 355.

[0097] The guide plate 343 is provided with a discharge port 344 that is connected to the feeding groove and is used to place the leather cup 200. The feeding push plate 342 can push the leather cup 200 placed in the feeding groove through the discharge port 344 into the slide groove 355 and make it coaxial with the perforation 354.

[0098] Understandably, during the feeding process, the worker places the leather cup 200 into the feeding trough through the feeding port 344, and drives the feeding push plate 342 to move and abut against the leather cup 200 by the extension and retraction of the feeding cylinder 341, thereby achieving the initial axial positioning of the leather cup 200 and the pressing execution component.

[0099] In a preferred embodiment, such as Figures 4 to 7 As shown, the feeding device 340 also includes a feeding slide rail 345 fixedly connected to the first mounting frame 301, and a feeding push plate 342 slidably connected to the feeding slide rail 345.

[0100] Understandably, the smoothness of the feeding action of the feeding pusher plate 342 can be improved by the sliding cooperation between the feeding slide rail 345 and the feeding pusher plate 342.

[0101] In a preferred embodiment, such as Figures 4 to 8 As shown, the eccentric positioning mechanism includes a positioning cylinder 361 fixedly mounted on the positioning block 350, and a positioning push plate 362 that is slidably connected to the slide groove 355 is fixedly mounted on the telescopic end of the positioning cylinder 361.

[0102] Understandably, when the feeding device 340 moves the cup 200 into the chute 355 and makes it coaxial with the perforation 354, the pressing execution component passes through the cup 200 and the slot corresponds to the position of the cup 200. At this time, the feeding push plate 342 is reset. The positioning cylinder 361 drives the positioning push plate 362 to move, which can push the cup 200, thereby causing the cup 200 to deviate from the central axis of the pressing execution component, thus realizing the single-sided pressing of the cup 200.

[0103] In a preferred embodiment, such as Figure 7 As shown, the positioning push plate 362 and / or the feeding push plate 342 are configured with a concave arc shape on the side near the perforation 354 to fit the shape of the outer circular surface of the leather cup 200.

[0104] In a preferred embodiment, such as Figures 4 to 8 As shown, it also includes an oil spraying assembly for oil spraying lubrication of the inner cup 200 of the positioning block 350.

[0105] In a preferred embodiment, such as Figures 4 to 8 As shown, the fuel injection assembly includes two first fuel injectors 321 fixedly mounted on the positioning block 350. The fuel injection ports of the two first fuel injectors 321 are respectively connected to two first oil passages 353 on the inner wall of the slide groove 355.

[0106] Among them, the two first oil passages 353 and the connecting ports of the slide groove 355 are symmetrical about the central axis of the perforation 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 passage 353.

[0107] In this embodiment, the above-mentioned cup pressing and positioning device is used, and an oil spraying component is provided on the positioning block 350 to achieve surface lubrication of the cup 200. During the pressing process of the cup 200, the friction between the cup 200 and the surface of the first guide member 330 can be greatly reduced. This not only avoids friction wrinkles on the cup 200, but also facilitates the horizontal elastic reset of the cup 200 after it reaches the corresponding position of the groove 630, further improving the assembly accuracy of the cup 200.

[0108] It is understandable that the number of the first oil injector 321 and the number of the first oil passage 353 and the connecting port of the slide groove 355 are not limited to the one mentioned above. In order to ensure that the oil is evenly applied to the outer peripheral surface of the cup 200, multiple connecting ports of the first oil passage 353 and the slide groove 355 can be arranged in a circular array around the cup 200. As long as the lubrication effect of the outer peripheral surface of the cup 200 can be guaranteed, it will not be elaborated here.

[0109] In a preferred embodiment, such as Figures 4 to 8 As shown, the oil injection assembly also includes a second oil injector 322 fixedly mounted on the first mounting frame 301, and a plurality of second oil passages 356 communicating with the oil injection ports of the second oil injector 322 are provided between the positioning block 350 and the inner wall of the slide groove 355 on the side away from the worktable 110.

[0110] Among them, multiple second oil passages 356 are arranged in a ring array about the central axis of the perforation 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.

[0111] In a preferred embodiment, such as Figure 6 As shown, a sealing groove 352 is provided between the positioning block 350 and the first mounting frame 301, which surrounds the through hole 354 and is coaxial with the through hole 354. A sealing ring 351 is embedded in the sealing groove 352.

[0112] The second oil passage 356 is located between the perforation 354 and the sealing groove 352, and the sealing ring 351 abuts against the first mounting frame 301 and the bottom wall of the sealing groove 352 at both ends of the axial direction of the perforation 354.

[0113] It is understandable that the sealing ring 351 can seal the oil spraying assembly between the positioning block 350 and the first mounting frame 301 to prevent oil leakage and ensure the oil spraying effect.

[0114] In a preferred embodiment, such as Figure 9 As shown, the first guide member 330 includes a positioning part 331 fixedly disposed on the end face of the positioning block 350 near the worktable 110, and a guide part 332 fixedly disposed on the end of the positioning part 331 away from the positioning block 350 and coaxial with the positioning part 331.

[0115] The guide cavity 333 is disposed through the positioning part 331 and the guide part 332, and the deflection guide groove 334 is disposed on the end face of the positioning part 331 away from the guide part 332 and is connected to the guide cavity 333.

[0116] This application provides a method for pressing a leather cup, wherein the aforementioned leather cup pressing device employs this method, including:

[0117] Step S1: Establish a guide channel that matches the inner diameter of the valve hole 620. The protruding end of the guide channel is flush with the proximal end of the groove 630 relative to the guide channel.

[0118] Step S2: Set a support limit at the proximal end of the leather cup 200 relative to the threading channel;

[0119] Step S3: When the leather cup 200 is located outside the threading channel, set the leather cup 200 to be eccentric to the threading channel;

[0120] Step S4: Apply a unilateral force to the end of the leather cup 200 near the central axis of the threading channel, causing the leather cup 200 to pass through the threading channel in an inclined posture and move the end near the central axis of the threading channel to the corresponding position of the groove 630.

[0121] Step S5: Apply pressure to the cup 200 in a predetermined direction on the side close to the support limit, so as to move the cup 200 from the tilted position back to be perpendicular to the threading channel;

[0122] The predetermined direction is the extension direction of the end of the leather cup 200 near the center axis of the threading channel to the center axis of the threading channel.

[0123] In this embodiment, the above-mentioned cup pressing method is adopted. By eccentrically setting the cup 200 and the guide channel and pressing on one side, the cup 200 can reach the installation position in an inclined posture in the guide channel. At the same time, the inclined part of the cup 200 is pressed and reset sequentially along the included angle extension direction, so that the cup 200 is reset and embedded in the groove 630 under its own elasticity. This avoids the deformation caused by the radial shrinkage of the cup 200 and ensures the assembly accuracy of the cup 200.

[0124] In a preferred embodiment, step S1 further includes adjusting the relative position of the guide channel within the valve hole 620 based on the position of the slot 630.

[0125] Among them, for the pressing of the cup 200 with multiple grooves 630 in a single valve hole 620, the pressing sequence is that the length of the through channel extending into the valve hole 620 gradually decreases.

[0126] It is understandable that, since there is still an assembly error between the cup 200 and the groove 630 after the pressing is completed, subsequent pressing should not interfere with the already pressed cup 200, thereby avoiding damage to the already pressed cup 200 by the pressing execution component.

[0127] In a preferred embodiment, the surface of the leather cup 200 is further lubricated by spraying oil before step S4.

[0128] In a preferred embodiment, after step S4, a radial force is applied to the end of the leather cup 200 near the central axis of the threading channel, causing the central axis of the leather cup 200 to move towards the side closer to the central axis of the threading channel.

[0129] like Figure 1 , Figure 2 , Figures 14 to 18 As shown in the figure, this application embodiment 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.

[0130] 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 mounted on the second mounting frame 512 and whose outer diameter matches the inner diameter of the valve hole 620, and a shaping member 560 for shaping the leather cup 200. The second guide member 520 is provided with a positioning channel, and the shaping member 560 is telescopically mounted in the positioning channel and can rotate along the central axis of the positioning channel.

[0131] The shaping component 560 has a shaping execution part at the end away from the second mounting frame 512. When the shaping component 560 is in the retracted state, the shaping execution part is located in the positioning channel. When the shaping component 560 is in the open state, the shaping execution part is located on the side of the positioning channel away from the second mounting frame 512 and its outer diameter matches the inner diameter of the leather cup 200.

[0132] During operation, the second guide 520 of the shaping unit 500 is moved up and down by the lifting and adjusting mechanism 400 to the corresponding position of the groove 630 of the mounting valve 600. The shaping component 560 is in a retracted state, and the lower end of the positioning channel of the second guide 520 is flush with the upper end of the groove 630. At this time, the shaping component 560 extends out of the positioning channel, and the shaping execution part is located at the corresponding position of the cup 200 and opens to abut against the inner ring of the cup 200. Then the shaping component 560 rotates at a predetermined angle, and the shaping execution end abuts against the inner ring of the cup 200 and completely rolls the cup 200 into the groove 630, completing the shaping action of the cup 200. After the shaping is completed, the shaping component 560 retracts back into the positioning channel and repeats the above shaping process with the lifting and moving of the second guide 520.

[0133] In this embodiment, the above-mentioned cup shaping device is used. The lifting and lowering mechanism 400 can perform shaping work on the cups 200 in different positions of the grooves 630. Since the shaping component 560 is telescopically arranged in the positioning channel, it will not interfere with the lifting and positioning of the second guide component 520. After the second guide component 520 is positioned, the shaping component 560 extends out of the positioning channel and abuts against the inner ring of the cup 200 through the shaping execution part. As the shaping execution part rotates, the cup 200 can be completely rolled into the groove 630, thereby improving the pressing accuracy of the cup 200.

[0134] It is understandable that, for the shaping of the cup 200 with multiple grooves 630 within a single valve hole 620, the shaping sequence is that the length of the positioning channel extending into the valve hole 620 gradually increases.

[0135] It is understandable that, since there is still an assembly error between the cup 200 and the groove 630 after the press-fit is completed, the cup 200 that has not been shaped should not be interfered with during the subsequent shaping process, so as to avoid the second guide 520 from damaging the unshaped cup 200.

[0136] In a preferred embodiment, such as Figure 14 , Figure 15 As shown, the second mounting frame 512 is fixedly provided with a telescopic drive device for driving the shaping part 560 to extend and retract, and a rotary drive device for driving the shaping part 560 to rotate.

[0137] In a preferred embodiment, such as Figure 14 , Figure 15 As shown, the rotary drive device includes a drive motor 530 fixedly mounted on the second mounting frame 512, a drive wheel 531 fixedly mounted on the rotation output end of the drive motor 530, and a driven wheel 541 rotatably mounted on the second mounting frame 512 and coupled to the shaping component 560.

[0138] A belt 580 is wound between the driving wheel 531 and the driven wheel 541.

[0139] It is understandable that when the drive motor 530 drives the drive wheel 531 to rotate, the drive wheel 531 drives the driven wheel 541 to rotate through the belt 580. When the driven wheel 541 rotates, it can drive the shaping part 560 to rotate to achieve the rotational shaping action.

[0140] In a preferred embodiment, such as Figure 14 , Figure 15 As shown, 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 component 560.

[0141] The spline shaft 570 is coaxial with the driven wheel 541 and is splined together.

[0142] Understandably, when the telescopic cylinder 540 drives the spline shaft 570 to extend or retract, the spline shaft 570 can drive the shaping component 560 to extend or retract within the second guide 520 to achieve the conversion between the contracted state and the open state. At the same time, the spline shaft 570 is splinedly connected to the driven wheel 541, thereby transmitting the torque of the driven wheel 541 to the shaping component 560, thus realizing the rotational drive of the shaping component 560.

[0143] It is understood that the structure and cooperation of the rotary drive device and the telescopic drive device are not limited to the one mentioned above. For example, the telescopic drive device can also be configured to drive the rotary drive device and the shaping part 560 to rise and fall synchronously. As long as the telescopic and rotary drive of the shaping part 560 can be realized, it will not be elaborated here.

[0144] In a preferred embodiment, such as Figure 14 , Figure 15 As shown, multiple guide rods 551 are fixedly provided on the end face of the second mounting frame 512 away from the second guide member 520, and a top plate 553 is fixedly provided on the end face of the multiple guide rods 551 away from the second mounting frame 512.

[0145] The telescopic cylinder 540 is fixedly mounted on the top plate 553, and the telescopic end of the telescopic cylinder 540 is fixedly provided with a slide table 552 that is slidably connected to the guide rod 551.

[0146] Understandably, when the telescopic cylinder 540 drives the shaping part 560 to extend or retract, the slide table 552 can be moved and guided by the guide rod 551, thereby improving the smoothness of the extension and retraction of the shaping part 560.

[0147] In a preferred embodiment, such as Figures 14 to 16 As shown, a connecting frame 513 is fixedly provided on the end face of the second mounting frame 512 near the mounting valve 600, and the second guide member 520 is fixedly provided on the connecting frame 513.

[0148] In a preferred embodiment, such as Figures 14 to 17 As shown, the shaping component 560 includes a telescopic part 561 fixedly connected to the spline shaft 570 and a shaping execution end.

[0149] The shaping execution end includes a plurality of retracting plates 563 fixedly disposed on the side of the telescopic part 561 away from the connecting frame 513, and a shaping protrusion 564 fixedly disposed on the side of the retracting plate 563 away from the telescopic part 561.

[0150] Among them, multiple retracting 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 retracting plates 563 to the side away from the central axis of the telescopic part 561, and its outer diameter matches the inner diameter of the leather cup 200.

[0151] In this embodiment of the application, a leather cup shaping device as described above is used. The shaping execution end is composed of multiple retracting plates 563. Since there are gaps between the multiple retracting plates 563, when the shaping part 560 is in a contracted state and the shaping protrusion 564 abuts against the inner wall of the positioning channel, the retracting plates 563 can elastically deform to retract radially.

[0152] In a preferred embodiment, such as Figure 16 , Figure 17 As shown, the shaping protrusion 564 has a guide slope that abuts against the side of the second guide member 520 away from the connecting frame 513 at the end near the telescopic part 561.

[0153] It is understandable that when the shaping part 560 changes from an open state to a retracted state, the shaping protrusion 564 can automatically retract by the contact between the guide slope and the corresponding end of the second guide 520, thereby ensuring the working stability of the shaping execution end.

[0154] In a preferred embodiment, such as Figure 16 , Figure 17 As shown, a cavity 562 is provided axially through the telescopic part 561.

[0155] It is understandable that by opening a cavity 562 in the telescopic part 561, the overall weight of the shaping part 560 can be reduced, thereby reducing the workload of the telescopic drive device and the rotary drive device, and improving the overall stability of the shaping device during operation.

[0156] In a preferred embodiment, such as Figure 14 , Figure 15 As shown, a second support seat 511 is fixedly installed on the second mounting frame 512 and is fixedly connected to the lifting platform 440 and the mounting block 460 respectively.

[0157] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0158] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method for pressing and fitting leather cups, characterized in that, include: Establish a guide channel that matches the inner diameter of the valve orifice, wherein the protruding end of the guide channel is flush with the proximal end of the groove relative to the guide channel; A support limit is provided at the proximal end of the leather cup relative to the threading channel; The leather cup is positioned off-center from the threading channel on the outside of the threading channel; Apply a unilateral force to the end of the leather cup near the central axis of the threading channel, causing the leather cup to pass through the threading channel in an inclined posture and move the end near the central axis of the threading channel to the corresponding position of the groove. Apply pressure to the cup in a predetermined direction, close to the support limit side, to move the cup from its tilted position back to be flush with the groove; Wherein, the predetermined direction is the extension direction from one end of the leather cup near the center axis of the threading channel to the center axis of the threading channel; The step of applying pressure sequentially to the cup in a predetermined direction near the support limit side, thereby causing the cup to return from an inclined position to be flush with the groove, includes: First, apply pressure against the center of the leather cup, causing the center of the leather cup to change from an inclined state to a horizontal state; During this process, a radial force is applied to the end of the leather cup near the central axis of the threading channel, causing the central axis of the leather cup to move towards the side closer to the central axis of the threading channel. Then, pressure is applied to the area of ​​the end of the cup away from the limiting member, so that the area of ​​the end of the cup away from the limiting member changes from an inclined state to a horizontal state, and the cup is in a horizontal state and embedded in the groove.

2. The method for pressing and fitting a leather cup according to claim 1, characterized in that, After establishing the guide channel that matches the inner diameter of the valve orifice, the relative position of the guide channel within the valve orifice is adjusted based on the position of the groove.

3. The method for pressing and fitting a leather cup according to claim 2, characterized in that, For the pressing of a cup with multiple grooves in a single valve hole, the pressing sequence is that the length of the guide channel extending into the valve hole gradually decreases.

4. The method for pressing and fitting a leather cup according to claim 1, characterized in that, Before applying a unilateral force to the end of the leather cup near the central axis of the threading channel, the surface of the leather cup is also lubricated by spraying oil.

5. A leather cup pressing device, characterized in that, The method for pressing a leather cup according to any one of claims 1 to 4 includes a lifting adjustment mechanism and a pressing unit fixedly installed on the lifting end of the lifting adjustment mechanism; The pressing unit includes a mounting frame fixedly connected to the lifting end of the lifting adjustment mechanism, a guide fixedly mounted on the mounting frame, and a power execution component. The output end of the power execution component is connected to the pressing execution component, and the guide has a through channel for the pressing execution component. The press-fitting execution assembly includes a positioning mandrel, a middle pressure component, and a side pressure component, which are driven to rise and fall by the power execution assembly respectively. The positioning mandrel is coaxial with the guide component and a limiting component is fixedly provided on its outer circular surface. The limiting component and the positioning mandrel are provided with a groove for installing the leather cup at the end near the installation valve. The positioning mandrel includes a connecting shaft portion fixedly connected to the telescopic end of the first lifting cylinder. The connecting shaft portion has a receiving cavity communicating with the slot. A support plate is elastically hinged in the receiving cavity. The swing plane of the support plate is located on the eccentric symmetrical plane of the cup. The end of the support plate away from the installation valve has a guide slope that can abut against the intermediate pressure component, and the end near the installation valve has a reset protrusion that can abut against the inner ring of the cup. The outer diameter of the guide member matches the inner diameter of the valve hole of the valve installation valve. The intermediate pressure member and the side pressure member can perform lifting and lowering actions along the outer circular surface of the positioning mandrel. The limiting member and the side pressure member are located on the opposite side of the intermediate pressure member. The projection of the intermediate pressure member, the limiting member, and the side pressure member on the horizontal plane is specifically an annular shape that is coaxial with the positioning mandrel and matches the end face of the diaphragm.

6. The leather cup pressing device according to claim 5, characterized in that, The power actuation assembly includes a first lifting cylinder, a second lifting cylinder, and a third lifting cylinder, which are fixedly mounted on the mounting frame. The first lifting cylinder has its telescopic end fixedly connected to the positioning mandrel, the second lifting cylinder has its telescopic end fixedly connected to the side pressure component, and the third lifting cylinder has its telescopic end fixedly connected to the middle pressure component.

7. A leather cup pressing device according to claim 5 or 6, characterized in that, The positioning mandrel includes a limiting end fixedly disposed at the end of the connecting shaft away from the first lifting cylinder; The limiting end and the limiting member form a groove for installing the leather cup.

8. The leather cup pressing device according to claim 7, characterized in that, The limiting member is provided with a through groove that communicates with the accommodating cavity. The end of the support plate away from the installation valve can pass through the through groove to the outside of the limiting member, and the end near the installation valve can swing radially along the connecting shaft in the slot.

9. The leather cup pressing device according to claim 8, characterized in that, The intermediate pressure component includes a connecting slide that is fixedly connected to the telescopic end of the third lifting cylinder and two pressure rods that are symmetrically and fixedly disposed on the side of the connecting slide near the valve mounting end. The connecting sliding part can slide along the outer circular surface of the limiting member and abut against the guide slope of the support plate, and the two pressure rods are respectively located at the gaps on both sides of the limiting member and the side pressure member.

Images