CN117754265A - Leather cup press-fitting positioning device - Google Patents

Abstract

The application discloses leather cup pressure equipment positioner, including fixed the locating piece of setting on an installing frame, fixed material feeding unit and the eccentric positioning mechanism of being equipped with on the locating piece, link up on the locating piece and be equipped with the perforation that is used for pressure equipment to carry out the subassembly and pass, in this application embodiment, adopt foretell leather cup pressure equipment positioner, realize the automatic feeding of leather cup and with the initial positioning of pressure equipment execution subassembly through material feeding unit, realize the axis skew of leather cup on pressure equipment execution subassembly through the eccentric positioning mechanism, make the leather cup pass the guide chamber under the slope gesture of approximate ellipse in-process of pressure equipment, thereby reduce the horizontal projection area of leather cup, avoid radial shrinkage deformation, simultaneously under the slope direction effect of deflection guide slot, improved the smooth degree that the gesture was changed in the leather cup pressure equipment in-process, self structural accuracy after pressure equipment finishes has been guaranteed.

Description

Leather cup press-fitting positioning device

Technical Field

The invention relates to the technical field of brake boosting system assembly, in particular to a leather cup press-fitting positioning device.

Background

The automobile brake booster system is an important component of a modern automobile brake system, and is mainly used for reducing the force required by a driver when the driver steps on a brake pedal and improving the efficiency and stability of the brake system.

In the prior art, the production of the automobile brake booster system mainly adopts a manual or semi-automatic assembly mode, along with the continuous development and application of an intelligent and automatic technology, the automatic assembly has become a trend of manufacturing industry, has wide prospect and application value, and the full-automatic assembly of the automobile brake booster system also becomes an effective means for improving the competitiveness, reducing the cost and improving the product quality of the current automobile manufacturers.

In the assembly process of the brake booster system, a leather cup is required to be installed in the valve hole of the valve block to ensure the sealing performance of the valve block, and the assembly of the leather cup at present mainly comprises manual assembly and automatic machine assembly. The manual assembly efficiency is lower, and in the scheme of machine automatic assembly leather cup, mostly follow radially and warp the processing to reduce the leather cup volume, be convenient for transfer the leather cup to the inside caulking groove position of valve opening, because the resilience force of leather cup self is limited, the damage of buckling appears in the radial shrinkage deformation in-process of leather cup, lead to its and the cooperation effect of caulking groove to reduce, also can cause adverse effect to the wholeness ability of valve body, in another kind of eccentric single side pressure fit scheme of leather cup, need set up leather cup and valve opening eccentric, whole assembly efficiency is lower, and because the radial length of one side of leather cup reduces, the radial length increase of opposite side relatively wears to draw the passageway, easily take place extrusion deformation when leading to the leather cup slope to pass and wear to draw the passageway, the pressure equipment gesture of leather cup can not be guaranteed.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the leather cup press-mounting positioning device which has high assembly efficiency, is convenient for the leather cup to pass through the threading channel and ensures the leather cup press-mounting posture.

In order to achieve the above object, the present invention is achieved by the following technical scheme.

The application provides a leather cup pressure equipment positioner, including the fixed locating piece that sets up on an installing frame, the fixed material feeding unit and the eccentric positioning mechanism that are equipped with on the locating piece:

the positioning block is provided with a through hole for the press-fit execution assembly to pass through, the end surface of one side of the positioning block, which is close to the mounting valve, is fixedly provided with a guide piece, and the guide piece is provided with a guide cavity communicated with the through hole in an axial through way;

the clamping groove which is coaxial with the guide cavity and can press-fit the leather cup single side is formed in the press-fit execution assembly, and a deflection guide groove which is communicated with the guide cavity and eccentric is formed in the end face of one side, away from the mounting valve, of the guide piece;

the feeding device is used for moving the leather cup to a corresponding position coaxial with the guide cavity, and the eccentric positioning mechanism can move the leather cup to a side close to the central axis of the deflection guide groove when the leather cup is installed on the press-fit execution assembly.

Further limited, the positioning device for the leather cup press-fitting is characterized in that the positioning block is provided with a chute communicated with the through hole, and the feeding device comprises a feeding cylinder and a guide plate which are fixedly arranged on the mounting frame;

A feeding groove communicated with the sliding groove is formed in the guide plate, and a feeding push plate which is arranged in the feeding groove in a sliding manner and can be in sliding connection with the sliding groove is fixedly arranged at the telescopic end of the feeding cylinder;

the guide plate is provided with a discharge hole which is communicated with the feeding groove and used for placing the leather cup, and the feeding push plate can push the leather cup in the feeding groove to be coaxial with the perforation.

Further limited, the cup press-fitting positioning device further comprises a feeding sliding rail fixedly connected with the mounting frame, and the feeding push plate is in sliding connection with the feeding sliding rail.

Further limited, the cup press-fitting positioning device comprises the eccentric positioning mechanism, wherein the eccentric positioning mechanism comprises a positioning cylinder fixedly arranged on the positioning block, and a positioning push plate in sliding connection with the sliding groove is fixedly arranged at the telescopic end of the positioning cylinder.

Further limited, the positioning push plate of the feeding device and/or the feeding push plate of the eccentric positioning mechanism are/is arranged close to one side end of the perforation to be in a concave arc shape which is matched with the shape of the outer circular surface of the leather cup.

Further limited, the leather cup press-mounting positioning device further comprises an oil spraying assembly used for oil spraying and lubricating of the leather cup in the positioning block.

Further limited, the rubber cup press-mounting positioning device comprises a first oil sprayer fixedly arranged on the positioning block, wherein a first oil way is communicated between an oil spraying port of the first oil sprayer and the inner wall of the chute;

the first oil way and the communication port of the chute are symmetrical about the central axis of the perforation, and the first oil sprayer can carry out oil spraying lubrication on the outer peripheral surface of the leather cup through the first oil way.

Further limited, the rubber cup press-mounting positioning device comprises a fuel injection assembly, wherein the fuel injection assembly comprises a second fuel injector fixedly arranged on the mounting frame, and a second fuel way communicated with a fuel injection port of the second fuel injector is arranged between the positioning block and the inner wall of one side of the chute, which is far away from the mounting valve;

the second oil way and the communicating port of the chute are arranged in an annular array with respect to the perforation central axis, and the second oil sprayer can carry out oil spraying lubrication on the top end of the leather cup through the second oil way.

Further limited, in the above-mentioned leather cup press-mounting positioning device, a sealing groove surrounding the perforation and coaxial with the perforation is arranged between the positioning block and the mounting frame, and a sealing ring is embedded in the sealing groove;

The second oil way is positioned between the perforation and the sealing groove, and the two ends of the sealing ring in the axial direction of the perforation are respectively abutted with the mounting frame and the bottom wall of the sealing groove.

Further limited, the guide piece comprises a positioning part fixedly arranged on the end face of one side of the positioning block, which is close to the mounting valve, and a guide part fixedly arranged at one end of the positioning part, which is far away from the positioning block, and coaxial with the positioning part;

the guide cavity is communicated with the positioning part and the guide part, and the deflection guide groove is arranged on one side end surface of the positioning part far away from the guide part and is communicated with the guide cavity.

The invention has at least the following beneficial effects:

1. the automatic feeding of the leather cup and the initial positioning of the leather cup and the press-fit execution assembly are realized through the feeding device, and the axial offset of the leather cup on the press-fit execution assembly is realized through the eccentric positioning mechanism, so that the leather cup can pass through the guide cavity in a single-side press-fit process in an approximately elliptical inclined posture, the horizontal projection area of the leather cup is reduced, the radial shrinkage deformation is avoided, and meanwhile, the smoothness of posture transformation in the leather cup press-fit process is improved under the inclined guiding action of the deflection guide groove, and the structural precision of the leather cup after the press-fit is finished is ensured;

2. The sliding fit of the feeding slide rail and the feeding push plate can improve the stability of the pushing action of the feeding push plate;

3. the oil spraying assembly is arranged on the positioning block, so that the surface lubrication of the leather cup is realized, the friction force between the leather cup and the surface of the guide piece can be greatly reduced in the press mounting process of the leather cup, friction wrinkles generated by the leather cup can be avoided, and the leather cup can be conveniently and elastically reset horizontally after reaching the corresponding position of the caulking groove, so that the assembly precision of the leather cup is further improved;

4. the oil spraying assembly between the positioning block and the mounting frame can be sealed through the sealing ring, oil leakage is avoided, and oil spraying effect is guaranteed.

Drawings

FIG. 1 is a schematic diagram of a cup assembly station according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a cup assembler station according to an embodiment of the present disclosure with the outer case 120 removed;

FIG. 3 is a schematic diagram of the "lifting adjustment mechanism 400" part of the cup assembly station according to the embodiment of the present application;

fig. 4 is a schematic structural diagram of a "press-fitting unit 300" in the cup press-fitting device according to the embodiment of the present application;

fig. 5 is a schematic structural diagram of a "press-fitting unit 300" in the cup press-fitting device according to the embodiment of the present application;

FIG. 6 is a schematic structural view of a portion of a cup press-fitting positioning device according to an embodiment of the present disclosure;

FIG. 7 is a cross-sectional view of a portion of a cup press-fit positioning device according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a "positioning block 350" in the cup press-fitting positioning device according to the embodiment of the present application;

FIG. 9 is a schematic structural view of a "first guide 330" in the cup press-fitting positioning device according to the embodiment of the present application;

FIG. 10 is a schematic structural view of a "press-fit actuator" part of a cup press-fit device according to an embodiment of the present disclosure;

FIG. 11 is a cross-sectional view of a portion of a "press-fit actuator assembly" of a cup press-fit device according to an embodiment of the present application;

fig. 12 is an enlarged schematic view of the structure of the "positioning mandrel spacing end 3702" part of the cup press-fitting device according to the embodiment of the present application;

FIG. 13 is a schematic view of the structure of a "middle pressing piece 371" in the cup press-fitting device according to the embodiment of the present application;

FIG. 14 is a schematic structural diagram of a portion of a shaping unit 500 in a cup shaping device according to an embodiment of the present disclosure;

FIG. 15 is a schematic structural diagram of a portion of a shaping unit 500 in a cup shaping device according to an embodiment of the present disclosure;

FIG. 16 is a cross-sectional view of a portion of a second guide 520 of a cup shaper according to an embodiment of the present application;

FIG. 17 is a schematic structural view of a shaping member 560 in a cup shaping device according to an embodiment of the present disclosure;

fig. 18 is a structural cross-sectional view of the "mount valve 600" in the embodiment of the present application.

Reference numerals

The automatic feeding device comprises a workbench-110, an outer box body-120, a positioning tool-130, a leather cup-200, a press-fitting unit-300, a first mounting frame-301, a first supporting seat-302, a first lifting cylinder-311, a second lifting cylinder-312, a third lifting cylinder-313, a first connecting piece-314, a second connecting piece-315, a first guide rail-316, a second guide rail-317, a first oil sprayer-321, a second oil sprayer-322, a first guide piece-330, a positioning part-331, a guide part-332, a guide cavity-333, a deflection guide groove-334, a feeding device-340, a feeding cylinder-341, a feeding push plate-342, a guide plate-343, a discharge port-344, a feeding slide rail-345, a positioning block-350 sealing ring-351, sealing groove-352, first oil way-353, perforation-354, sliding groove-355, second oil way-356, positioning cylinder-361, positioning push plate-362, positioning mandrel-370, connecting shaft-3701, spacing end-3702, holding cavity-3703, elastic piece-3704, middle pressure piece-371, connecting slide-3711, compression bar-3712, spacing piece-372, side pressure piece-373, supporting plate-374, penetrating groove-375, lifting adjusting mechanism-400, base-410, lifting motor-420, screw-430, lifting table-440, lifting sliding rail-450, mounting block-460, shaping supporting seat unit-500, second mounting frame-511, second mounting frame-512, connecting frame-513, the second guide piece-520, the driving motor-530, the driving wheel-531, the telescopic cylinder-540, the driven wheel-541, the guide rod-551, the sliding table-552, the top plate-553, the shaping piece-560, the telescopic part-561, the cavity-562, the tension 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 caulking groove-630.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The following describes in detail the cup press-fitting positioning device provided in the embodiment of the present application through specific embodiments and application scenarios thereof with reference to the accompanying drawings.

As shown in fig. 1 to 17, the embodiment of the application provides a cup assembling station, which comprises a workbench 110, two positioning tools 130 fixedly arranged on the workbench 110 and used for positioning an installation valve 600, a cup press-fitting device arranged on the workbench 110 and respectively positioned at corresponding positions of the two positioning tools 130, and a cup shaping device.

The two lifting adjusting mechanisms 400 are fixedly arranged on the workbench 110 at corresponding positions of the two positioning tools 130, the cup pressing device comprises one lifting adjusting mechanism 400 and a pressing unit 300 arranged on the lifting end of the lifting adjusting mechanism 400, and the cup shaping device comprises the other lifting adjusting mechanism 400 and a shaping unit 500 arranged on the lifting end of the lifting adjusting mechanism 400.

It will be appreciated that, as shown in fig. 18, the mounting valve 600 includes a valve body 610 and a valve hole 620 provided on the valve body 610, a plurality of caulking grooves 630 for mounting the cup 200 are provided on an inner wall of the valve hole 620 in an axial array, the cup press-fitting device is used for press-fitting the cup 200 into the caulking grooves 630 in the corresponding position mounting valve 600, and the cup shaping device is used for shaping the cup 200 to be better matched with the caulking grooves 630 after the cup 200 is mounted in the caulking grooves 630 in the corresponding position mounting valve 600.

In a preferred embodiment, as shown in fig. 1, the cup holder further comprises an outer case 120 fixedly disposed on the table 110, and the outer case 120 forms a working space for accommodating the cup pressing device and the cup shaping device.

In a preferred embodiment, as shown in fig. 2, the lifting adjustment mechanism 400 includes a base 410 fixedly disposed on the workbench 110, a lifting motor 420 is fixedly disposed on the base 410, a screw 430 rotatably connected to the base 410 is fixedly disposed on a rotation output end of the lifting motor 420, and a lifting table 440 is screwed on the screw 430.

The axial direction of the screw 430 is along the vertical direction, two lifting slide rails 450 are symmetrically and fixedly arranged on the base 410 relative to the screw 430, and two groups of mounting blocks 460 are respectively and slidably arranged on the two lifting slide rails 450.

Wherein, the lifting table 440 and the mounting block 460 are fixedly connected with the press-fitting unit 300 of the cup press-fitting device or the shaping unit 500 of the cup shaping device.

In this embodiment, with the above-mentioned leather cup assembly station, when the lifting motor 420 drives the screw 430 to rotate, the lifting platform 440 can perform lifting action on the screw 430, so as to drive the press-fit unit 300 or the shaping unit 500 mounted on the lifting platform 440 to lift and adjust the height, and simultaneously, the mounting block 460 fixedly connected with the press-fit unit 300 or the shaping unit 500 moves synchronously on the lifting slide rail 450 at the corresponding position, so as to ensure lifting stability of the press-fit unit 300 or the shaping unit 500.

It should 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 link structure driven by a power device can be directly adopted, so long as lifting driving of the press-fitting unit 300 or the shaping unit 500 can be realized, and details thereof will not be described herein.

As shown in fig. 1 to 13, the embodiment of the present application provides a cup press-fitting device including a lifting adjustment mechanism 400 and a press-fitting unit 300 fixedly installed on a lifting end of the lifting adjustment mechanism 400.

The press-fitting unit 300 comprises a first installation frame 301 fixedly connected with the lifting end of the lifting adjusting mechanism 400, a first guide piece 330 fixedly arranged on the first installation frame 301, and a power executing assembly, wherein the output end of the power executing assembly is connected with the press-fitting executing assembly, and a penetrating channel of the press-fitting executing assembly is arranged in the first guide piece 330 in a penetrating mode.

The press mounting execution assembly comprises a positioning mandrel 370, a middle press piece 371 and a side press piece 373 which are driven to rise and fall respectively by the power execution assembly, wherein the positioning mandrel 370 is coaxial with the first guide piece 330, a limiting piece 372 is fixedly arranged on the outer circular surface of the positioning mandrel 370, and a clamping groove for installing the leather cup 200 is formed in one end, close to the workbench 110, of the positioning mandrel 372 and the positioning mandrel 370.

The outer diameter of the first guide member 330 is matched with the inner diameter of the valve hole 620 of the mounting valve 600, the middle pressing member 371 and the side pressing member 373 can perform lifting action along the outer circular surface of the positioning mandrel 370, the limiting member 372 and the side pressing member 373 are located on opposite sides of the middle pressing member 371, and projections of the middle pressing member 371, the limiting member 372 and the side pressing member 373 on a horizontal plane are in particular annular shapes which are coaxial with the positioning mandrel 370 and are matched with the end surface of the leather cup 200.

In operation, the first guide 330 of the press-fitting unit 300 is moved up and down to the position corresponding to the caulking groove 630 of the mounting valve 600 by the up-down adjusting mechanism 400, the lower end of the threading channel of the first guide 330 is just flush with the upper end of the caulking groove 630, the cup 200 is eccentrically mounted in the clamping grooves of the limiting member 372 and the positioning mandrel 370, namely, the central axis of the leather cup 200 deviates to the side pressing piece 373, at this time, the middle pressing piece 371 and the side pressing piece 373 are positioned at the side of the clamping groove far away from the workbench 110, the power execution assembly drives the positioning mandrel 370 and the limiting piece 372 to descend and drives the leather cup 200 to move to the corresponding position of the caulking groove 630, in the process that the positioning mandrel 370 and the limiting piece 372 pass through the first guide piece 330, the leather cup 200 is in an inclined state under the interference effect of the inner wall of the threading channel, so that the projection area on the horizontal plane can be reduced, the projection area can pass through the threading channel, and when the positioning mandrel 370 and the limiting piece 372 are moved, the middle pressing piece 371 is driven to descend until one end close to the workbench 110 is flush with one end of the limiting piece 372 close to the workbench 110, the middle pressing piece 371 can abut against the middle part of the leather cup 200 in the descending process, so that the middle part of the cup 200 is converted from the inclined state to the horizontal state, and after the middle pressing piece 371 is moved, the side pressing member 373 is driven to descend until the end close to the workbench 110 is flush with the end of the limiting member 372 close to the workbench 110, the end of the cup 200 can be abutted against the side area of the limiting member 372 during the descending of the side pressing member 373, so that the region of the end of the cup 200 away from the side of the stopper 372 is converted from the inclined state to the horizontal state, so that the cup 200 is completely in the horizontal state, under the action of the interference of the inner wall of the caulking groove 630 and the elasticity of the caulking groove, the leather cup 200 is embedded into the caulking groove 630 and is coaxial with the first guiding piece 330; after the leather cup 200 is pressed, the positioning mandrel 370, the limiting piece 372, the middle pressing piece 371 and the side pressing piece 373 are reset under the drive of the power executing assembly, and the height of the pressing unit 300 is adjusted through the lifting adjusting mechanism 400, so that the leather cup 200 can be pressed into the caulking grooves 630 with different heights in the mounting valve 600.

In this embodiment of the application, adopt foretell a leather cup pressure equipment device, with the eccentric location of leather cup 200, and realize the pressure equipment of leather cup 200 in installation valve 600 through the syllogic drive, wherein pass through the guide passageway through first section drive messenger leather cup 200 under the incline condition in pressure equipment in-process, reduce its projection area on the horizontal plane, the bending deformation that the radial compression of leather cup 200 leads to in the traditional pressure equipment means is avoided, realize the radial level by level of leather cup 200 and reset through second section drive, third section drive, make the reset of leather cup 200 more smooth, be difficult for producing the fold, further improved the structural integrity after the pressure equipment of leather cup 200, the cooperation precision of leather cup 200 and installation valve 600 has been guaranteed.

In a preferred embodiment, as shown in fig. 4, the power executing assembly includes a first elevation cylinder 311, a second elevation cylinder 312, and a third elevation cylinder 313 fixedly provided on the first mounting frame 301.

The telescopic end of the first lifting cylinder 311 is fixedly connected with the positioning mandrel 370, the telescopic end of the second lifting cylinder 312 is fixedly connected with the side pressing piece 373, and the telescopic end of the third lifting cylinder 313 is fixedly connected with the middle pressing piece 371.

It is to be understood that the driving mode of the power executing assembly is not limited to the above one, so long as the respective lifting driving of the positioning mandrel 370, the middle pressing member 371 and the side pressing member 373 can be realized, and will not be described herein.

In a preferred embodiment, as shown in fig. 4, the power executing assembly further includes a first guide rail 316 and a second guide rail 317 fixedly disposed on the first mounting frame 301 and located at corresponding positions of the second lifting cylinder 312 and the third lifting cylinder 313, respectively.

The first guide rail 316 and the second guide rail 317 are coaxial with the positioning mandrel 370, a first connecting piece 314 fixedly connected with the side pressing piece 373 is slidably disposed on the first guide rail 316, and a second connecting piece 315 fixedly connected with the middle pressing piece 371 is fixedly disposed on the second guide rail 317.

It can be appreciated that the stability of the lifting drive of the side pressing members 373 and the middle pressing member 371 can be improved by the sliding guide of the first guide rail 316 and the first connecting member 314, and the sliding guide of the second guide rail 317 and the second connecting member 315.

In a preferred embodiment, as shown in fig. 10 to 12, the positioning mandrel 370 includes a connection shaft portion 3701 fixedly connected to the telescopic end of the first lifting cylinder 311, and a limit end portion 3702 fixedly disposed at an end of the connection shaft portion 3701 remote from the first lifting cylinder 311.

Wherein, a clamping groove for installing the leather cup 200 is formed between the limiting end 3702 and the limiting piece 372.

In a preferred embodiment, as shown in fig. 10 to 12, a receiving cavity 3703 communicating with the clamping groove is disposed in the connecting shaft 3701, a supporting plate 374 is elastically hinged in the receiving cavity 3703, a through slot 375 penetrating the receiving cavity 3703 is disposed on the limiting member 372, one end of the supporting plate 374 far away from the workbench 110 can penetrate through the through slot 375 to the outer side of the limiting member 372, and one end close to the workbench 110 can swing radially along the connecting shaft 3701 in the clamping groove.

The swinging plane of the supporting plate 374 is located on the eccentric symmetry plane of the leather cup 200, one end of the supporting plate 374, far away from the workbench 110, is provided with a guiding inclined part capable of being abutted against the middle pressing piece 371, and one end, close to the workbench 110, is provided with a reset protrusion capable of being abutted against the inner ring of the leather cup 200.

Initially, the middle pressing piece 371 is located at one side of the supporting plate 374 far away from the workbench 110, the reset protrusion of the supporting plate 374 near one end of the workbench 110 does not extend out of the clamping groove under the action of self-hinging elastic force, and the guiding inclined part far away from one end of the workbench 110 passes through the penetrating groove 375 to penetrate to the outer side of the limiting piece 372; when the leather cup 200 is eccentrically arranged in the clamping groove and the middle pressing piece 371 moves towards the side close to the workbench 110, the middle pressing piece 371 is abutted against the guide inclined part of the supporting plate 374 and drives the guide inclined part of the supporting plate 374 to retract into the accommodating cavity 3703, the supporting plate 374 accumulates elastic potential energy, a reset protrusion close to one end of the workbench 110 is abutted against the inner ring of the leather cup 200 and drives the leather cup 200 to move towards the side far away from the side pressing piece 373, namely, auxiliary reset is carried out on the leather cup 200 through the supporting plate 374 in the descending process of the middle pressing piece 371, so that the leather cup 200 can be coaxial with the positioning mandrel 370 in the press mounting process of the middle pressing piece 371 and the side pressing piece 373; after the press fitting is completed, the middle press piece 371 is reset, and the supporting plate 374 can be reset under the action of self-hinging elastic force.

In this embodiment of the application, adopt foretell a leather cup pressure equipment device, realize the auxiliary reset of leather cup 200 sectional type pressure equipment in-process through fagging 374 and well casting die 371 cooperation, further improved the level smoothness that resets of leather cup 200 in the pressure equipment process.

In a preferred embodiment, as shown in fig. 11, an elastic member 3704 is fixedly disposed between an end surface of the middle pressure member 371 adjacent to the side pressure member 373 and an inner wall of the accommodating chamber 3703.

It can be appreciated that the elastic member 3704 can be specifically configured as an elastic member such as a cylindrical spring, a snap spring, an elastic rubber, etc., so long as the elastic return of the stay plate 374 can be achieved, which will not be described herein.

In a preferred embodiment, as shown in fig. 13, the middle pressing member 371 includes an engagement sliding portion 3711 fixedly connected to the second connecting member 315, and two pressing rods 3712 symmetrically and fixedly disposed on one side end of the engagement sliding portion 3711 near the workbench 110.

The engagement sliding portion 3711 can slide along the outer circular surface of the limiting member 372 and abut against the guiding inclined portion of the supporting plate 374.

It can be understood that the limiting piece 372 and the side pressing piece 373 are respectively located at opposite sides of the middle pressing piece 371, and the two pressing rods 3712 are respectively located at gaps of two sides of the limiting piece 372 and the side pressing piece 373, so that the middle part of the leather cup 200 is pressed, the even stress of the leather cup 200 is ensured, and the horizontal reset is stable.

In a preferred embodiment, as shown in fig. 5, a first supporting seat 302 fixedly connected to the lifting platform 440 and the mounting block 460 is fixedly provided on the first mounting frame 301.

In a preferred embodiment, as shown in fig. 4 and 5, a spray assembly for oiling and lubricating the surface of the cup 200 is further provided on the first mounting frame 301.

In a preferred embodiment, as shown in fig. 4 and 5, a cup press-fitting positioning device for eccentrically positioning the cup 200 is further provided on the first mounting frame 301.

As shown in fig. 4 to 9, the embodiment of the application provides a cup pressing positioning device, which includes a positioning block 350 fixedly disposed on a first mounting frame 301, and a feeding device 340 and an eccentric positioning mechanism are fixedly disposed on the positioning block 350.

The positioning block 350 is provided with a through hole 354 for the press-fit execution assembly to pass through, the end surface of one side of the positioning block 350, which is close to the workbench 110, is fixedly provided with a first guide member 330, and the first guide member 330 is provided with a guide cavity 333 communicated with the through hole 354 in an axial through manner.

Wherein, be equipped with on the pressure equipment execution subassembly with lead the chamber 333 coaxial and can press the draw-in groove of dress to leather cup 200 unilateral pressure, first guide 330 is close to material feeding unit 340, be equipped with on the eccentric positioning mechanism one side terminal surface with lead chamber 333 intercommunication and eccentric deflection guide slot 334, material feeding unit 340 is used for with lead the coaxial corresponding position department of chamber 333 with leather cup 200, eccentric positioning mechanism can be when leather cup 200 installs the pressure equipment execution subassembly with leather cup 200 to being close to deflection guide slot 334 central axis one side removal.

In this embodiment of the application, adopt foretell leather cup pressure equipment positioner, realize the automatic feeding of leather cup 200 and with the initial positioning of pressure equipment execution subassembly through material feeding unit 340, realize the axis skew of leather cup 200 on the pressure equipment execution subassembly through eccentric positioning mechanism, make leather cup 200 can pass under the slope gesture of approximate ellipse in the unilateral pressure equipment process and lead chamber 333, thereby reduce the horizontal projection area of leather cup 200, avoid radial shrinkage deformation, under the slope direction effect of deflection guide slot 334 simultaneously, improved the smoothness of leather cup 200 pressure equipment in-process gesture conversion, guaranteed the structural accuracy of leather cup 200 self after the pressure equipment finishes.

In a preferred embodiment, as shown in fig. 4 to 8, a chute 355 is formed on the positioning block 350 and is communicated with the through hole 354, the feeding device 340 includes a feeding cylinder 341 and a guiding plate 343 fixedly disposed on the first mounting frame 301, a feeding groove is formed in the guiding plate 343 and is communicated with the chute 355, and a feeding push plate 342 slidably disposed in the feeding groove of the guiding plate 343 and slidably connected with the chute 355 is fixedly disposed on the telescopic end of the feeding cylinder 341.

The guide plate 343 is provided with a discharge opening 344 which is communicated with the feeding groove and is used for placing the leather cup 200, and the feeding push plate 342 can push the leather cup 200 placed in the feeding groove through the discharge opening 344 into the sliding groove 355 and enable the leather cup 200 to be coaxial with the perforation 354.

It can be appreciated that during feeding, a worker places the cup 200 in the feeding groove through the discharge opening 344, and drives the feeding push plate 342 to move and abut against the cup 200 through the extension and contraction of the feeding cylinder 341, so as to realize the axial initial positioning of the cup 200 and the press-fit execution assembly.

In a preferred embodiment, as shown in fig. 4 to 7, the feeding device 340 further includes a feeding rail 345 fixedly connected to the first mounting frame 301, and the feeding pusher 342 is slidably connected to the feeding rail 345.

It can be appreciated that the sliding fit between the feeding slide rail 345 and the feeding push plate 342 can improve the stability of the pushing motion of the feeding push plate 342.

In a preferred embodiment, as shown in fig. 4 to 8, the eccentric positioning mechanism includes a positioning cylinder 361 fixedly disposed on the positioning block 350, and a positioning push plate 362 slidably connected to the sliding groove 355 is fixedly disposed on a telescopic end of the positioning cylinder 361.

It can be appreciated that, after the feeding device 340 moves the cup 200 into the chute 355 and makes it coaxial with the through hole 354, the press-fit execution assembly passes through the cup 200 and the clamping groove corresponds to the 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 so as to push the cup 200, so that the center axes of the cup 200 and the press-fit execution assembly deviate, and then the single-side press-fit of the cup 200 is realized.

In a preferred embodiment, as shown in fig. 7, the positioning push plate 362 and/or the feeding push plate 342 are disposed near one side end of the through hole 354 in a concave arc shape that is in surface fit with the outer circumference of the cup 200.

In a preferred embodiment, as shown in fig. 4 to 8, a fuel injection assembly for injecting fuel into the cup 200 in the positioning block 350 is further included.

In a preferred embodiment, as shown in fig. 4 to 8, the fuel injection assembly includes two first fuel injectors 321 fixedly disposed on the positioning block 350, and two first fuel passages 353 are respectively disposed on the fuel injection ports of the two first fuel injectors 321 and the inner wall of the chute 355 in a communicating manner.

The two first oil passages 353 and the communication port of the chute 355 are symmetrical about the central axis of the through hole 354, and the first oil injector 321 can perform oil injection lubrication on the outer circumferential surface of the cup 200 through the first oil passages 353.

In this embodiment of the application, adopt foretell leather cup pressure equipment positioner, set up the oil spout subassembly on locating piece 350 to realize the surface lubrication of leather cup 200, at the pressure equipment in-process of leather cup 200, can reduce the frictional force on leather cup 200 and first guide 330 surface by a wide margin, not only can avoid leather cup 200 to produce friction fold, and after leather cup 200 reaches caulking groove 630 and corresponds the position, the level elasticity of leather cup 200 of being convenient for resets, further improves the assembly precision of leather cup 200.

It is to be understood that the number of the communication ports of the first injector 321, the first oil path 353, and the chute 355 is not limited to the above-mentioned one, and in order to ensure that the oil coating on the outer peripheral surface of the cup 200 is uniform, a plurality of communication ports of the first oil path 353 and the chute 355 can be arranged in an annular array in the circumferential direction of the cup 200, so long as the lubrication effect of the outer peripheral surface of the cup 200 can be ensured, which is not described herein.

In a preferred embodiment, as shown in fig. 4 to 8, the fuel injection assembly further includes a second fuel injector 322 fixedly disposed on the first mounting frame 301, and a plurality of second fuel passages 356 communicating with fuel injection ports of the second fuel injector 322 are provided between the positioning block 350 and an inner wall of the side of the chute 355 away from the table 110.

The second oil passages 356 are disposed in an annular array about the central axis of the through hole 354, and the second oil injectors 322 can perform oil injection lubrication on the top end of the cup 200 through the second oil passages 356.

In a preferred embodiment, as shown in fig. 6, a seal 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 seal ring 351 is embedded in the seal groove 352.

The second oil passage 356 is located between the through hole 354 and the seal groove 352, and the seal ring 351 is in contact with the bottom wall of the seal groove 352 and the first mounting frame 301 at both ends in the axial direction of the through hole 354.

It will be appreciated that the seal 351 seals the fuel injection assembly between the locating block 350 and the first mounting frame 301 to prevent leakage of fuel and ensure fuel injection.

In a preferred embodiment, as shown in fig. 9, the first guide 330 includes a positioning portion 331 fixedly disposed on an end surface of the positioning block 350 near the table 110, and a guiding portion 332 fixedly disposed at an end of the positioning portion 331 away from the positioning block 350 and coaxial with the positioning portion 331.

The guide cavity 333 is disposed through the positioning portion 331 and the guide portion 332, and the deflection guide groove 334 is disposed on an end surface of the positioning portion 331 away from the guide portion 332 and is in communication with the guide cavity 333.

The embodiment of the application provides a leather cup press-fitting method, and the leather cup press-fitting device adopts the leather cup press-fitting method, comprising the following steps:

step S1, establishing a penetrating channel matched with the inner diameter of the valve hole 620, wherein the extending end of the penetrating channel is flush with the proximal end of the penetrating channel opposite to the caulking groove 630;

s2, arranging a supporting limit at the proximal end of the leather cup 200 relative to the threading channel;

step S3, when the leather cup 200 is positioned outside the threading channel, setting the leather cup 200 to be eccentric with the threading channel;

step S4, applying a unilateral acting force to one end of the leather cup 200, which is close to the central axis of the threading channel, so as to drive the leather cup 200 to pass through the threading channel in an inclined posture and move to a position corresponding to the caulking groove 630 at one end, which is close to the central axis of the threading channel;

Step S5, sequentially applying pressure close to one side of the supporting limit to the leather cup 200 in a preset direction to drive the leather cup 200 to reset from an inclined posture to be vertical to the threading channel;

the predetermined direction is an extending direction from one end of the cup 200 near the center axis of the guiding channel to the center axis of the guiding channel.

In this embodiment of the application, the above-mentioned leather cup press-fitting method is adopted, through the eccentric setting and the unilateral press-fitting of leather cup 200 and the passageway of leading, make leather cup 200 can reach the mounted position with the gesture of slope in the passageway of leading, simultaneously press-fitting the inclined part to leather cup 200 along contained angle extending direction in turn resets, make leather cup 200 reset and inlay under self elastic effect and establish in caulking groove 630, the deformation that produces when having avoided leather cup 200 radial shrink has guaranteed the assembly precision of leather cup 200.

In a preferred embodiment, step S1 further includes adjusting the relative position of the lead-through channel within the valve bore 620 based on the position of the caulking groove 630.

Wherein, for the packing cup 200 press-fitting of the plurality of caulking grooves 630 in the single valve hole 620, the press-fitting sequence is that the length of the penetration passage extending into the valve hole 620 is gradually reduced.

It can be appreciated that, since there is an assembly error between the cup 200 and the caulking groove 630 after the press-fitting is completed, the subsequent press-fitting cannot interfere with the pressed cup 200, so as to avoid the damage of the press-fitting execution assembly to the pressed cup 200.

In a preferred embodiment, the step S4 further includes performing oil spraying lubrication treatment on the surface of the cup 200.

In a preferred embodiment, step S4 further includes applying a radial force to an end of the cup 200 near the central axis of the threading channel to drive the central axis of the cup 200 to move toward the side near the central axis of the threading channel.

As shown in fig. 1, 2 and 14 to 18, the illustrated embodiment of the present application provides a cup shaping device, which includes a lifting adjustment mechanism 400 and a shaping unit 500 fixedly installed on a lifting end of the lifting adjustment mechanism 400.

The shaping unit 500 comprises a second installation frame 512 fixedly connected with the lifting end of the lifting adjusting mechanism 400, a second guide piece 520 fixedly arranged on the second installation frame 512 and having an outer diameter matched with the inner diameter of the valve hole 620, and a shaping piece 560 for shaping the leather cup 200, wherein a positioning channel is arranged in the second guide piece 520 in a penetrating manner, and the shaping piece 560 is telescopically arranged in the positioning channel and can rotate along the central axis of the positioning channel.

Wherein, one end of the shaping member 560 away from the second mounting frame 512 is provided with a shaping execution portion, and in the contracted state of the shaping member 560, the shaping execution portion is located in the positioning channel, and in the expanded state of the shaping member 560, the shaping execution portion is located at the side of the positioning channel away from the second mounting frame 512, and the outer diameter of the shaping execution portion is matched with the inner diameter of the cup 200.

During operation, the second guide member 520 of the shaping unit 500 is lifted and moved to the position corresponding to the caulking groove 630 of the mounting valve 600 by the lifting adjusting mechanism 400, the shaping member 560 is in a contracted state, the lower end of the positioning channel of the second guide member 520 is just flush with the upper end of the caulking groove 630, at this time, the shaping member 560 extends out of the positioning channel, the shaping executing part is located at the corresponding position of the cup 200 and is opened to abut against the inner ring of the cup 200, then the shaping member 560 rotates by a predetermined angle, the shaping executing part abuts against the inner ring of the cup 200 and rolls the cup 200 into the caulking groove 630 completely, the shaping action of the cup 200 is completed, the shaping member 560 is retracted back into the positioning channel after the shaping is completed, and the shaping process is repeated along with the lifting movement of the second guide member 520.

In this embodiment of the application, adopt foretell a leather cup shaping device, can carry out plastic work to the leather cup 200 in the caulking groove 630 of different positions through the lift of lift adjustment mechanism 400, because plastic piece 560 scalable setting is in the location passageway, thereby can not cause the interference to the lift location of second guide 520, after second guide 520 fixes a position, plastic piece 560 stretches out the location passageway and contradicts the inner circle of leather cup 200 through plastic executive part, along with the rotation of plastic executive part can grind leather cup 200 to caulking groove 630 completely, thereby improve the pressure equipment precision of leather cup 200.

It will be appreciated that the cups 200 of the plurality of slots 630 in the single valve bore 620 are shaped in a sequence of progressively increasing lengths of the locating channels extending into the valve bore 620.

It can be appreciated that, since there is an assembly error between the cup 200 and the caulking groove 630 after the press-fitting is completed, interference cannot be generated on the cup 200 after the shaping is performed, so that damage to the cup 200 after the shaping is performed by the second guide 520 is avoided.

In a preferred embodiment, as shown in fig. 14 and 15, a telescopic driving device for driving the shaping member 560 to stretch and a rotary driving device for driving the shaping member 560 to rotate are fixedly arranged on the second mounting frame 512.

In a preferred embodiment, as shown in fig. 14 and 15, the rotation driving device includes a driving motor 530 fixedly provided on the second mounting frame 512, a driving wheel 531 fixedly provided on a rotation output end of the driving motor 530, and a driven wheel 541 rotatably provided on the second mounting frame 512 and coupled to the shaping member 560.

Wherein, a belt 580 is wound between the driving wheel 531 and the driven wheel 541.

It can be appreciated 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, the shaping member 560 can be driven to rotate to achieve the rotational shaping action.

In a preferred embodiment, as shown in fig. 14 and 15, the telescopic driving device includes a telescopic cylinder 540 fixedly provided on the second mounting frame 512, and a spline shaft 570 rotatably provided on a telescopic end of the telescopic cylinder 540 and fixedly connected to the shaping member 560.

Wherein spline shaft 570 is coaxial with and spline-connected to driven wheel 541.

It can be appreciated that when the telescopic cylinder 540 drives the spline shaft 570 to stretch and retract, the spline shaft 570 can drive the truing element 560 to stretch and retract in the second guide element 520 to realize the transition between the contracted state and the expanded state, and meanwhile, the spline shaft 570 is in spline connection with the driven wheel 541, so that the torque of the driven wheel 541 can be transmitted to the truing element 560, and the rotation driving of the truing element 560 is realized.

It is to be understood that the structure and the matching form of the rotation driving device and the telescopic driving device are not limited to the above-mentioned one, for example, the telescopic driving device can also be configured to drive the rotation driving device and the shaping member 560 to synchronously lift, so long as the telescopic and rotary driving of the shaping member 560 can be realized, which is not described herein.

In a preferred embodiment, as shown in fig. 14 and 15, a plurality of guide rods 551 are fixedly disposed on a side end surface of the second mounting frame 512 away from the second guide member 520, and a top plate 553 is fixedly disposed on a side end surface of the plurality of guide rods 551 away from the second mounting frame 512.

The telescopic cylinder 540 is fixedly arranged on the top plate 553, and a sliding table 552 which is in sliding connection with the guide rod 551 is fixedly arranged on the telescopic end of the telescopic cylinder 540.

It can be appreciated that when the telescopic cylinder 540 drives the shaping member 560 to be telescopic, the sliding table 552 can be guided by the guide bar 551, so as to improve the telescopic stability of the shaping member 560.

In a preferred embodiment, as shown in fig. 14 to 16, an engagement frame 513 is fixedly provided on an end surface of the second mounting frame 512 adjacent to one side of the mounting valve 600, and the second guide 520 is fixedly provided on the engagement frame 513.

In a preferred embodiment, as shown in fig. 14 to 17, the truing element 560 includes a telescoping portion 561 fixedly connected to the spline shaft 570 and a truing actuator.

The shaping execution end includes a plurality of expansion plates 563 fixedly disposed at one end of the expansion plate 561 far from the linking frame 513, and shaping protrusions 564 fixedly disposed at one end of the expansion plates 563 far from the expansion plate 561.

The plurality of expansion plates 563 are disposed in an annular array with respect to the central axis of the expansion portion 561, and the shaping convex portion 564 protrudes outward toward the side away from the central axis of the expansion portion 561 with respect to the expansion plates 563 and has an outer diameter matching the inner diameter of the cup 200.

In this embodiment of the present application, with the above-mentioned leather cup shaping device, the shaping execution end is composed of a plurality of folding plates 563, and because there are gaps between the folding plates 563, when the shaping member 560 is in a contracted state and the shaping convex portion 564 abuts against the inner wall of the positioning channel, the folding plates 563 can be elastically deformed to fold in the radial direction.

In a preferred embodiment, as shown in fig. 16 and 17, the shaping protrusion 564 is provided with a guiding slope abutting against the second guide 520 at the end of the second guide 520 far from the engagement frame 513 near the end of the telescopic portion 561.

It will be appreciated that when the shaping member 560 is switched from the expanded state to the contracted state, the shaping protrusion 564 can be automatically folded by the abutment of the guide slope with the corresponding end of the second guide member 520, thereby ensuring the working stability of the shaping execution end.

In a preferred embodiment, as shown in fig. 16 and 17, a cavity 562 is formed in the expansion and contraction portion 561 so as to extend in the axial direction.

It can be appreciated that by providing the cavity 562 in the telescoping portion 561, the overall weight of the shaping member 560 can be reduced, thereby reducing the workload of the telescoping drive and the rotary drive, and improving the overall stability of the shaping device when in operation.

In a preferred embodiment, as shown in fig. 14 and 15, a second support base 511 fixedly connected to the lifting table 440 and the mounting block 460 is fixedly provided on the second mounting frame 512.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims (10)

1. The utility model provides a leather cup pressure equipment positioner which characterized in that, including the fixed locating piece that sets up on an installing frame, fixed material feeding unit and the eccentric positioning mechanism of being equipped with on the locating piece:

the positioning block is provided with a through hole for the press-fit execution assembly to pass through, the end surface of one side of the positioning block, which is close to the mounting valve, is fixedly provided with a guide piece, and the guide piece is provided with a guide cavity communicated with the through hole in an axial through way;

the clamping groove which is coaxial with the guide cavity and can press-fit the leather cup single side is formed in the press-fit execution assembly, and a deflection guide groove which is communicated with the guide cavity and eccentric is formed in the end face of one side, away from the mounting valve, of the guide piece;

the feeding device is used for moving the leather cup to a corresponding position coaxial with the guide cavity, and the eccentric positioning mechanism can move the leather cup to a side close to the central axis of the deflection guide groove when the leather cup is installed on the press-fit execution assembly.

2. The cup press-fitting positioning device according to claim 1, wherein the positioning block is provided with a chute communicated with the through hole, and the feeding device comprises a feeding cylinder and a guide plate which are fixedly arranged on the mounting frame;

a feeding groove communicated with the sliding groove is formed in the guide plate, and a feeding push plate which is arranged in the feeding groove in a sliding manner and can be in sliding connection with the sliding groove is fixedly arranged at the telescopic end of the feeding cylinder;

the guide plate is provided with a discharge hole which is communicated with the feeding groove and used for placing the leather cup, and the feeding push plate can push the leather cup in the feeding groove to be coaxial with the perforation.

3. The cup press-fit positioning device of claim 2, wherein the feeding device further comprises a feeding slide rail fixedly connected with the mounting frame, and the feeding push plate is slidably connected with the feeding slide rail.

4. The cup press-fitting positioning device according to claim 1, wherein the eccentric positioning mechanism comprises a positioning cylinder fixedly arranged on the positioning block, and a positioning push plate in sliding connection with the sliding groove is fixedly arranged on the telescopic end of the positioning cylinder.

5. A cup press-fitting positioning device according to claim 2 or 4, wherein the positioning push plate of the feeding device and/or the feeding push plate of the eccentric positioning mechanism are/is provided with a concave arc shape which is matched with the shape of the outer circular surface of the cup near one side end of the perforation.

6. The cup press-fit positioning device of claim 1, further comprising a fuel injection assembly for injecting fuel into the cup in the positioning block.

7. The leather cup press-fitting positioning device according to claim 2 or 6, wherein the oil injection assembly comprises a first oil injector fixedly arranged on the positioning block, and a first oil way is communicated between an oil injection port of the first oil injector and the inner wall of the chute;

the first oil way and the communication port of the chute are symmetrical about the central axis of the perforation, and the first oil sprayer can carry out oil spraying lubrication on the outer peripheral surface of the leather cup through the first oil way.

8. The packing cup press-fitting positioning device according to claim 2 or 6, wherein the oil injection assembly comprises a second oil injector fixedly arranged on the mounting frame, and a second oil way communicated with an oil injection port of the second oil injector is arranged between the positioning block and the inner wall of the side, away from the mounting valve, of the chute;

the second oil way and the communicating port of the chute are arranged in an annular array with respect to the perforation central axis, and the second oil sprayer can carry out oil spraying lubrication on the top end of the leather cup through the second oil way.

9. The leather cup press-fitting positioning device according to claim 8, wherein a sealing groove which surrounds the through hole and is coaxial with the through hole is arranged between the positioning block and the mounting frame, and a sealing ring is embedded in the sealing groove;

The second oil way is positioned between the perforation and the sealing groove, and the two ends of the sealing ring in the axial direction of the perforation are respectively abutted with the mounting frame and the bottom wall of the sealing groove.

10. The cup press-fitting positioning device according to claim 1, wherein the guide member comprises a positioning part fixedly arranged on the end surface of one side of the positioning block, which is close to the mounting valve, and a guide part fixedly arranged at one end of the positioning part, which is far away from the positioning block, and coaxial with the positioning part;

the guide cavity is communicated with the positioning part and the guide part, and the deflection guide groove is arranged on one side end surface of the positioning part far away from the guide part and is communicated with the guide cavity.