CN220427835U

CN220427835U - Grinding equipment of micro-lubrication injection mechanism

Info

Publication number: CN220427835U
Application number: CN202321993899.2U
Authority: CN
Inventors: 郑宗俊; 姜鹏博; 郭璐瑜; 董智灵
Original assignee: Fujian Jinxinrun Technology Co ltd
Current assignee: Fujian Jinxinrun Technology Co ltd
Priority date: 2023-07-27
Filing date: 2023-07-27
Publication date: 2024-02-02
Anticipated expiration: 2033-07-27

Abstract

The utility model discloses grinding equipment of a micro-lubrication injection mechanism, which belongs to the technical field of micro-lubrication and comprises a valve seat transmission device, a valve core transmission device and a grinding device, wherein the valve seat transmission device and the valve core transmission device are arranged in parallel relative to the opposite sides of the grinding device, the valve seat transmission device and the valve core transmission device respectively transmit a valve seat and a valve core to the grinding device, and the grinding device grinds the valve seat and the valve core; the valve seat transmission device consists of a valve seat vibration feeder, a valve seat placing mechanism and a valve seat tray conveyor belt, the valve core transmission device consists of a valve core vibration feeder, a valve core placing mechanism and a valve core tray conveyor belt, and the grinding device consists of a valve core loading and unloading mechanism, a grinding pressing mechanism, a grinding transmission mechanism and a valve seat loading and unloading mechanism. The utility model realizes the batch grinding processing requirement of valve seats and valve core assembly lines in the injection mechanism assembly, and is beneficial to improving the full-automatic grinding efficiency and quality of the injection mechanism assembly.

Description

Grinding equipment of micro-lubrication injection mechanism

Technical Field

The utility model belongs to the technical field of micro-lubrication and provides grinding equipment of a micro-lubrication injection mechanism.

Background

Micro lubrication is also called minimum lubrication, and English is Minimal Quantity Lubrication (MQL), which is a lubrication mode of metal processing, namely semi-dry cutting, and is a cutting processing method for effectively lubricating a processing area by mixing compressed gas (air, nitrogen, carbon dioxide and the like) with an extremely small amount of lubricating oil, vaporizing the mixture to form micron-sized liquid drops and spraying the liquid drops to the processing area.

Micro-lubrication is commonly used in forming micro-scale droplets in a spray mechanism which is delivered in milliliter per hour, as in a known patent document CN217371588U, a post-adjusting micro-lubrication spray mechanism, in which a relatively precise (ra 0.005) contact surface is required between a valve core and a valve seat, as shown in fig. 1, when the contact surface is not sufficiently matched with the smoothness, the fluid is not uniform during passing, and the fluctuation of atomization size is large, so that the matching surface between the valve seat and the valve core needs to be ground. However, the conventional polishing method generally adopts manual polishing, which has low effect, and the valve core and the valve seat are used as components of the injection mechanism, so that mass production exists in the industrial polishing process, and the existing production process cannot meet the requirement of automatic assembly line operation.

Disclosure of Invention

Accordingly, the present utility model is directed to a micro-lubrication jet mechanism grinding apparatus, which solves the requirement of the jet mechanism assembly for the flow line batch grinding.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides grinding equipment of a micro-lubrication injection mechanism, which comprises a valve seat transmission device, a valve core transmission device and a grinding device, wherein the valve seat transmission device and the valve core transmission device are arranged in parallel relative to the opposite sides of the grinding device, the valve seat transmission device and the valve core transmission device respectively transmit a valve seat and a valve core to the grinding device, and the grinding device grinds the valve seat and the valve core. The valve seat transmission device consists of a valve seat vibration feeder, a valve seat placement mechanism and a valve seat tray conveyor belt, wherein the valve seat vibration feeder is used for screening and sequencing valve seats, the valve seat placement mechanism is used for placing the valve seat coming out of the valve seat vibration feeder on a valve seat tray, and the valve seat tray conveyor belt is used for transmitting the valve seat tray. The valve core transmission device consists of a valve core vibration feeder, a valve core placement mechanism and a valve core tray conveyor belt, wherein the valve core vibration feeder is used for screening and sequencing valve cores, the valve core placement mechanism is used for placing the valve cores coming out of the valve core vibration feeder on a valve core tray, and the valve core tray conveyor belt is used for transmitting the valve core tray. The grinding device consists of a valve core assembling and disassembling mechanism, a grinding and pressing mechanism, a grinding transmission mechanism and a valve seat assembling and disassembling mechanism, wherein the valve core assembling and disassembling mechanism is used for assembling and disassembling a valve seat between the valve core conveying device and the grinding transmission mechanism, the valve seat assembling and disassembling mechanism is used for assembling and disassembling a valve seat between the valve seat conveying device and the grinding transmission mechanism, the grinding transmission mechanism is used for grinding contact surfaces between the valve core and the valve seat, and the grinding and pressing mechanism is used for loading grinding pressure to the valve core; the valve core assembling and disassembling mechanism and the valve seat assembling and disassembling mechanism do side shifting actions on two opposite sides of the grinding transmission mechanism respectively, and the grinding pressing mechanism does lifting actions above the grinding transmission mechanism.

Optionally, the valve seat placing mechanism and the valve core placing mechanism are both composed of a rotary cylinder and a finger cylinder, wherein the rotary cylinder is used for rotating the finger cylinder, and the finger cylinder is used for clamping and placing the valve seat or the valve core.

Optionally, the valve seat tray conveyor belt and the valve core tray conveyor belt are both formed by conveying straight sections and conveying arc sections to be U-shaped or annular; the valve seat conveying device further comprises a valve seat tray conveying mechanism which is arranged between the two parallel conveying straight sections of the valve seat tray conveying belt and is close to one side of the valve seat placing mechanism, the valve core conveying device further comprises a valve core tray conveying mechanism which is arranged between the two parallel conveying straight sections of the valve core tray conveying belt and is close to one side of the valve core placing mechanism, the valve seat tray conveying mechanism and the valve core tray conveying mechanism are composed of a lifting cylinder, a rotary cylinder and a clamping jaw cylinder, the rotary cylinder is arranged on the lifting cylinder through a bottom plate, the clamping jaw cylinder is arranged on the rotary cylinder through a support, and the clamping jaw cylinder is used for clamping and placing a valve seat tray or a valve core tray.

Optionally, the valve seat conveying device further comprises a valve seat tray lifting mechanism for conveying the valve seat to the grinding device, wherein the valve seat tray lifting mechanism consists of a valve seat tray transferring belt, a rod-containing cylinder and a stand column, and the stand column is provided with the rod-containing cylinder acting on the valve seat tray rotating belt; two rod cylinders are arranged, and fixed blocks connected with the two rod cylinders are respectively arranged on two sides of the valve seat tray transfer belt; the valve core conveying device further comprises a valve core tray transferring mechanism for conveying the valve core to the grinding device, and the valve core tray transferring mechanism has the same structure as the valve core tray conveying mechanism.

Optionally, the case handling mechanism comprises horizontal rodless cylinder, vertical rodless cylinder, cross arm, clamp finger cylinder, and horizontal rodless cylinder sets up to two, locates respectively and grinds drive mechanism both sides, is provided with a vertical rodless cylinder on two horizontal rodless cylinders respectively, is provided with the cross arm between two vertical rodless cylinders, and the cross arm is located grinds drive mechanism's top, and is provided with a plurality of clamp finger cylinders on the cross arm towards grinding drive mechanism's the corresponding face for press from both sides and put a plurality of cases of single row interval arrangement.

Optionally, the valve seat loading and unloading mechanism comprises fixing base, third needle type cylinder, movable block, fourth needle type cylinder, the connecting rod, the clamping lever, power linear guide adopts double track structure, fix on grinding drive mechanism, be provided with a fixing base on two power linear guide respectively, be connected with the movable block of vertical lift through the third needle type cylinder on the single fixing base, be equipped with a pair of fourth needle type cylinder that has relative action on the single movable block, be provided with the connecting rod on every fourth needle type cylinder, be provided with a clamping lever between the connecting rod that sets up on two fourth needle type cylinders of two movable blocks homonymies, be provided with another clamping lever between the connecting rod that sets up on two fourth needle type cylinders of two corresponding movable blocks homonymies, two clamping levers are used for pressing from both sides to put a plurality of valve seats of single row interval arrangement.

Optionally, the grinding transmission mechanism consists of a platform frame, a valve seat fixing plate, a valve core fixing plate, a driven gear shaft, a transition gear, a driving gear, a motor and a jacking cylinder, wherein the valve seat fixing plate, the motor and the jacking cylinder are arranged on the platform frame, and the valve core fixing plate is arranged above the valve seat fixing plate; the valve seat fixing plate is provided with a plurality of grooves which are arranged in a matrix and used for placing valve seats; the valve core fixing plate is provided with a plurality of driven gear shafts which are arranged in a matrix and used for placing valve cores, and the driven gear shafts and the grooves are in a one-to-one corresponding upper and lower structure and are meshed with each other on the same horizontal plane for transmission; the valve core fixing plate is provided with a transition gear meshed with a driven gear shaft for transmission, the output shaft of the motor is provided with a driving gear, and the transition gear is meshed with the driving gear for transmission; the driven gear shaft rotates on the valve core fixing plate through a bearing; the jacking air cylinder is connected with the valve core fixing plate through a connecting piece, acts on the valve core fixing plate and is used for lifting the valve core fixing plate above the valve seat fixing plate; a guide rod is arranged between the valve seat fixing plate and the valve core fixing plate.

Optionally, a positioning sleeve for radially clamping the square head of the valve core is arranged at the axial center of the driven gear shaft; the valve core fixing plate is arranged on a corresponding surface facing the valve seat fixing plate and is matched with the valve seats arranged on the grooves, the through holes and the corresponding positioning sleeve are sleeved on the same central axis, and an inner shoulder hole for axially abutting against the valve core step is arranged at the top end of the through hole.

Optionally, grind the mechanism of exerting pressure and constitute by door frame, displacement cylinder, pressurization board, first needle cylinder, be provided with the displacement cylinder on the door frame, be connected with the pressurization board on the displacement cylinder, the pressurization board is located the top of grinding drive mechanism, and is provided with on the face that the pressurization board faces the corresponding of grinding drive mechanism and is used for the one-to-one case loading grinding pressure and is a plurality of first needle cylinders that the matrix was arranged, and the top of first needle cylinder is provided with wear-resisting nylon piece.

Optionally, the grinding device further comprises a transition storage table which is matched with the valve core loading and unloading mechanism and is used for temporary storage of the valve core tray; the grinding device also comprises an overhanging auxiliary table which is arranged on the platform frame and used for supporting the valve seat loading and unloading mechanism, and a long hole groove which is matched with the valve seat loading and unloading mechanism and is used for adapting to the valve seat tray is formed in the overhanging auxiliary table; the grinding device also comprises an abrasive adding mechanism which is arranged on the overhanging auxiliary table and is positioned above the long hole groove, wherein the abrasive adding mechanism consists of a second needle type air cylinder, a mounting seat, a flow nozzle and a mounting frame, and the mounting frame is arranged on the overhanging auxiliary table and also serves as a positioning valve seat assembling and disassembling mechanism; the second needle-shaped air cylinder acts on the flow nozzle and is arranged on the mounting frame through the mounting seat; the number of the flow nozzles is equal to the number of the valve seats assembled and disassembled by the valve seat assembling and disassembling mechanism.

The beneficial effects of the utility model are as follows:

1. the micro-lubrication injection mechanism grinding equipment realizes the automatic processes of screening, sequencing, feeding, conveying, loading and unloading, grinding and the like of the valve seats and valve cores in the injection mechanism assembly, so that the pipeline conveying and batch grinding of the injection valve assembly can meet the automatic grinding processing requirements, and the full-automatic grinding efficiency and quality of the injection mechanism assembly can be improved.

2. According to the micro-lubrication injection mechanism grinding equipment, the cylinders and the motors can be programmed, so that the injection mechanism components can be automatically controlled according to program instructions in the transmission and grinding processes, and the labor cost and the time cost are reduced.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objects and other advantages of the utility model may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.

Drawings

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in the following preferred detail with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of a prior art spray mechanism assembly;

FIG. 2 is a front perspective view of the micro-lubrication jet mechanism grinding apparatus of the present utility model;

FIG. 3 is a bottom perspective view of FIG. 2;

FIG. 4 is a top plan schematic view of FIG. 2;

FIG. 5 is a front perspective view of the valve seat transfer device of FIG. 2;

FIG. 6 is a schematic view of the valve seat placement mechanism of FIG. 5;

FIG. 7 is a schematic view of the valve seat tray handling mechanism of FIG. 5;

FIG. 8 is a schematic view of the valve seat tray lifting mechanism of FIG. 5;

FIG. 9 is a front perspective view of the spool transfer device of FIG. 2;

FIG. 10 is a front perspective view of the polishing apparatus of FIG. 2;

FIG. 11 is a bottom perspective view of FIG. 10;

FIG. 12 is a top plan schematic view of FIG. 10;

FIG. 13 is a schematic view of the valve cartridge loading and unloading mechanism of FIG. 10;

FIG. 14 is a schematic view of the grinding and pressing mechanism of FIG. 10;

FIG. 15 is a schematic view of the grinding transmission mechanism in FIG. 10;

FIG. 16 is a schematic front view of FIG. 15;

FIG. 17 is a schematic cross-sectional view A-A of FIG. 16;

FIG. 18 is an enlarged schematic view of portion B of FIG. 17;

FIG. 19 is a schematic view of the abrasive adding mechanism of FIG. 10;

FIG. 20 is a schematic view of the valve seat attaching and detaching mechanism of FIG. 10;

Reference numerals:

1-a valve seat transmission device;

11-valve seat vibration feeder, 12-valve seat placing mechanism, 13-valve seat tray conveying mechanism, 14-valve seat tray conveyor belt, 15-valve seat tray lifting mechanism and 16-valve seat tray;

121-a rotary cylinder, 122-a finger cylinder;

131-lifting cylinders, 132-bottom plates, 133-revolving cylinders, 134-brackets and 135-clamping jaw cylinders;

141-conveying straight sections, 142-conveying arc sections;

151-a transfer belt, 152-a rod cylinder;

2-a valve core transmission device;

the device comprises a 21-valve core vibrating feeder, a 22-valve core placing mechanism, a 23-valve core tray conveying mechanism, a 24-valve core tray conveying belt, a 25-valve core tray transferring mechanism and a 26-valve core tray;

3-a grinding device;

31-valve core assembling and disassembling mechanisms, 32-grinding and pressurizing mechanisms, 33-transition storage tables, 34-grinding transmission mechanisms, 35-grinding agent adding mechanisms, 36-valve seat assembling and disassembling mechanisms, 37-overhanging auxiliary tables, 38-valve cores and 39-valve seats;

311-a horizontal rodless cylinder, 312-a vertical rodless cylinder, 313-a cross arm and 314-a finger clamping cylinder;

321-gate frames, 322-displacement cylinders, 323-compression plates, 324-first needle-type cylinders and 325-abrasion-resistant nylon blocks;

3401-platform frame, 3402-valve seat fixing plate, 3403-valve core fixing plate, 3404-guide rod, 3405-driven gear shaft, 3406-transition gear, 3407-driving gear, 3408-motor, 3409-guide rail groove, 3410-jacking cylinder, 3411-connecting piece, 3412-bearing, 3413-locating sleeve, 3414-inner shoulder hole, 3415-through hole and 3416-groove;

351-second needle cylinder, 352-mount, 353-spout, 354-mount;

361-a fixed seat, 362-a third needle type air cylinder, 363-a movable block, 364-a fourth needle type air cylinder, 365-a connecting rod, 366-a clamping rod and 367-a power linear guide rail;

371-slot.

Detailed Description

The utility model is further described below in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Referring to fig. 2-20, a micro-lubrication injection mechanism grinding device of the present utility model includes a valve seat transmission device 1, a valve core transmission device 2 and a grinding device 3, where the valve seat transmission device 1 and the valve core transmission device 2 are arranged in parallel on opposite sides with respect to the grinding device 3, and the respective vibration feeders are biased to the same side with respect to the grinding device 3, the valve seat transmission device 1 is used for conveying an assembly valve seat 39 of an injection valve to be ground to the grinding device 3, the valve core transmission device 2 is used for conveying an assembly valve core 38 of the injection valve to be ground, which is matched with the valve seat 39, to the grinding device 3, that is, the valve seat transmission device 1 and the valve core transmission device 2 respectively convey the valve seat 39 and the valve core 38 assembly of the injection mechanism to be ground to the grinding device 3, and then the grinding device 3 grinds the valve seat 39 and the valve core 38; by adopting the scheme, the automatic processes of screening, sorting, feeding, conveying, loading and unloading, grinding and the like of the valve seats and the valve cores in the injection mechanism assembly can be realized by the grinding system, so that the assembly line conveying and batch grinding of the injection valve assembly can meet the automatic grinding processing requirements, and the full-automatic grinding efficiency and quality of the injection mechanism assembly can be improved.

Specifically, the valve seat conveying device 1 in this example is composed of a valve seat vibrating feeder 11, a valve seat placing mechanism 12, a valve seat tray carrying mechanism 13, a valve seat tray conveying belt 14 and a valve seat tray lifting mechanism 15, wherein the valve seat vibrating feeder 11 is used for screening and sorting valve seats, the valve seat placing mechanism 12 is connected to the valve seat vibrating feeder 11 and is used for placing the valve seat output by the valve seat vibrating feeder 11 on the valve seat tray 16, the valve seat placing mechanism 12 is composed of a rotary cylinder 121 and a finger cylinder 122, the rotary cylinder 121 is fixed through a frame installation and is used for rotating the finger cylinder 122 by 180 degrees, and the finger cylinder 122 is used for clamping the valve seat 39; the valve seat tray conveying belt 14 is positioned on one side of the valve seat placing mechanism 12 and is used for conveying valve seat trays 16, the valve seat tray conveying belt 14 is formed by two parallel conveying straight sections 141 and one conveying arc section 142 to be U-shaped, the valve seat tray conveying mechanism 13 is arranged between the two parallel conveying straight sections 141 of the valve seat tray conveying belt 14 and is close to one side of the valve seat placing mechanism 12 and is used for rapidly carrying out transposition on the empty valve seat tray 16 on the valve seat tray conveying belt 14, the valve seat tray conveying mechanism 13 consists of a lifting cylinder 131, a rotary cylinder 133 and a clamping jaw cylinder 135, the lifting cylinder 131 is fixed through a frame, the rotary cylinder 133 is used for being installed on the lifting cylinder 131 through a bottom plate 132 and is used for being horizontally rotated, the clamping jaw cylinder 135 is installed on the rotary cylinder 133 through a bracket 134 and is used for being used for clamping the valve seat tray 16, namely, the valve seat tray conveying belt 14 is placed on the far side conveying straight section far away from the valve seat placing mechanism 12, the empty valve seat tray conveying mechanism 13 is used for realizing the transposition by rapidly placing the valve seat tray conveying mechanism on the valve seat tray 12 through the vertical lifting cylinder 131, the rotary cylinder 133 and the horizontal clamping jaw cylinder 135 are matched with the vertical lifting cylinder 133, and the clamping jaw cylinder 135, and the new valve seat conveying mechanism is placed on the valve seat conveying mechanism, and the valve seat tray is placed on the valve seat placing mechanism, and the valve seat tray conveying mechanism is positioned on the straight side by the valve seat conveying mechanism, and is positioned on the position on the side of a position by the valve seat; the valve seat tray lifting mechanism 15 is used for conveying the valve seat 39 to the grinding device 3, the valve seat tray lifting mechanism 15 consists of a valve seat tray conveying belt 151 and a rod cylinder 152, the rod cylinder 152 is fixedly arranged through a frame and used for lifting the valve seat tray conveying belt 151, a double-shaft cylinder can be adopted and is arranged on two sides of the valve seat tray conveying belt so as to improve the lifting stability of the valve seat tray conveying belt, the valve seat tray conveying belt 151 is used for bearing a valve seat tray 16, and a plurality of valve seats are arranged in the valve seat tray 16 so as to convey the valve seat to be ground to the grinding device 3; namely, the valve seat tray lifting mechanism 15 vertically lifts the valve seat tray transferring belt through the rod air cylinder 152 to lift the valve seat tray 16 filled with the valve seat onto the grinding device 3, the grinding device 3 grabs the valve seat and then carries out the subsequent grinding process, the empty valve seat tray can be lifted to the same height as the valve seat tray conveying belt 14 by the valve seat tray lifting mechanism 15, and the valve seat tray transferring belt 151 is used for conveying the empty valve seat tray onto the valve seat tray conveying belt 14 so as to enter the next valve seat filling and conveying process. In addition, the valve seat tray transferring mechanism 15 can also transfer the valve seat 39 after finishing grinding by the grinding device 3 onto the valve seat tray conveyor belt 14 and then take the valve seat onto the line.

The valve core transmission device 2 in the embodiment is composed of a valve core vibration feeder 21, a valve core placing mechanism 22, a valve core tray conveying mechanism 23, a valve core tray conveying belt 24 and a valve core tray transferring mechanism 25, wherein the valve core vibration feeder 21 is used for screening and sequencing valve cores, the valve core placing mechanism 22 is used for placing the valve cores output by the valve core vibration feeder 21 on a valve core tray 26, the valve core tray conveying belt 24 is used for conveying the valve core tray 26, and the valve core tray conveying mechanism 23 is arranged between two parallel conveying straight sections 141 of the valve core tray conveying belt 24 and is close to one side of the valve core placing mechanism; the spool tray transfer mechanism 25 is used to convey spools to the polishing device 3. The valve element vibrating feeder 21 has the same structure and similar effect as the valve seat vibrating feeder 11, the valve element placing mechanism 22 has the same structure and similar effect as the valve seat placing mechanism 12, the valve element tray conveyor 24 has the same structure and similar effect as the valve seat tray conveyor 14, and the valve element tray conveying mechanism 23 and the valve element tray conveying mechanism 25 both have the same structure and similar effect as the valve seat tray conveying mechanism 13, and only the aimed objects are different, namely, the valve seat and the valve element are respectively, so that the detailed description is omitted.

In another embodiment, the valve seat tray conveyor belt 14 or the valve core tray conveyor belt 24 may be formed by two parallel conveying straight sections 141 and two conveying arc sections 142 to form a ring shape, so as to realize that the valve seat tray 16 or the valve core tray 26 respectively circulates on the valve seat tray conveyor belt 14 or the valve core tray conveyor belt 24, and the valve seat tray conveying mechanism 13 or the valve core tray conveying mechanism 23 may not be provided.

In another embodiment, the valve seat tray lifting mechanism 15 may be replaced by another valve seat tray carrying mechanism 13, and the purpose of conveying the valve seat 39 to the grinding device 3 may be achieved.

In the present embodiment, the polishing apparatus 3 is mainly composed of a valve element attaching and detaching mechanism 31, a polishing pressing mechanism 32, a polishing transmission mechanism 34, and a valve seat attaching and detaching mechanism 36, the valve element attaching and detaching mechanism 31 is used for attaching and detaching a valve element 38 conveyed by the valve element conveying apparatus 2 to and from the polishing transmission mechanism 34, the valve seat attaching and detaching mechanism 36 is used for attaching and detaching a valve seat 39 conveyed by the valve seat conveying apparatus 1 to and from the polishing transmission mechanism 34, and the valve seat conveying apparatus 1 and the valve element conveying apparatus 2 mainly use respective conveyor belts and upper trays thereof to achieve the purpose of respectively conveying the valve seat and the valve element to the polishing apparatus 3 in a pipeline manner; the grinding transmission mechanism 34 is used for grinding the contact surface (shown in fig. 1) between the valve core 38 and the valve seat 39 of the injection mechanism assembly, and the grinding pressing mechanism 32 is used for loading grinding pressure to the valve core 38 so as to ensure grinding operation between the valve core 38 and the valve seat 39; and the spool attaching and detaching mechanism 31 and the valve seat attaching and detaching mechanism 36 do side-shifting actions on opposite sides of the grinding drive mechanism 34, respectively, while the grinding press mechanism 32 does lifting and lowering actions above the grinding drive mechanism 34. The grinding device can realize batch grinding processing requirements of contact surfaces between the valve seat and the valve core in the injection mechanism assembly.

The valve core loading and unloading mechanism 31 in this embodiment is composed of a horizontal rodless cylinder 311, a vertical rodless cylinder 312, a cross arm 313 and a finger clamping cylinder 314, wherein the horizontal rodless cylinder 311 is used for horizontal running, two horizontal rodless cylinders are arranged on two sides of the grinding transmission mechanism 34 respectively, one vertical rodless cylinder 312 is mounted on each of the two horizontal rodless cylinders 311, the vertical rodless cylinder 312 is used for vertical running, a cross arm 313 is arranged between the two vertical rodless cylinders 312, the cross arm 313 is positioned above the grinding transmission mechanism 34, the cross arm 313 is provided with a plurality of finger clamping cylinders 314 on the corresponding surface facing the grinding transmission mechanism 34, and the valve core tray and the valve core 38 arranged on the valve core tray are conveyed by the valve core conveying device 2.

The grinding and pressing mechanism 32 in this embodiment is composed of a gate frame 321, a displacement cylinder 322, a pressing plate 323, and a first needle cylinder 324, the gate frame is provided with the displacement cylinder 322, the displacement cylinder 322 is connected with the pressing plate 323, the pressing plate 323 is located above the grinding and driving mechanism 34, the corresponding surface of the pressing plate 323 facing the grinding and driving mechanism 34 is provided with a plurality of first needle cylinders 324 for loading grinding pressure on the valve cores 38 in a one-to-one correspondence manner and arranged in a matrix, and the top of the first needle cylinder 324 is provided with a wear-resistant nylon block 325 to prevent the contact surface between the valve cores 38 and the valve seat 39 from being not tight.

The grinding transmission mechanism 34 in this embodiment is composed of a platform frame 3401, a valve seat fixing plate 3402, a valve core fixing plate 3403, a guide rod 3404, a driven gear shaft 3405, a transition gear 3406, a driving gear 3407, a motor (3408), a lifting cylinder 3410, a bearing 3412 and the like, wherein the platform frame 3401 is provided with the valve seat fixing plate 3402, the motor 3408 and the lifting cylinder 3410, the lifting cylinder 3410 is provided with two lifting cylinders and respectively acts on two sides of the valve core fixing plate 3403 and is used for lifting the valve core fixing plate 3403 above the valve seat fixing plate 3402, the valve seat fixing plate 3402 is provided with the guide rod 3404 for guiding the valve core fixing plate 3403 during lifting, and the lifting cylinder 3410 is connected and fixed with the valve core fixing plate 3403 through an angular connecting piece 3411 so as to facilitate installation; the valve seat fixing plate 3402 is provided with a plurality of grooves 3416 which are arranged in a matrix and used for placing the valve seat 39, the valve core fixing plate 3403 is provided with a plurality of driven gear shafts 3405 which are arranged in a matrix and used for placing the valve cores 38, and the driven gear shafts 3405 and the grooves 3416 are in a one-to-one corresponding up-down structure and are meshed with each other on the same horizontal plane for transmission; the output shaft of the motor 3408 is provided with a driving gear 3407, the valve core fixing plate 3403 is provided with a transition gear 3406 meshed with a driven gear shaft 3405, the transition gear 3406 is meshed with the driving gear 3407, the driven gear shaft 3405 rotates on the valve core fixing plate 3403 through a bearing 3412, namely the driven gear shaft 3405 comprises a driven gear and a rotating shaft which are integrally arranged, a rolling bearing 3412 is arranged between the driven gear shaft and the valve core fixing plate 3403, the driven gear shaft 3405 and the valve core fixing plate 3403 are convenient to rotate relatively, the valve core fixing plate 3403 is provided with a stepped hole for accommodating the bearing 3412 and a positioning sleeve 3413, and grooves 3416 on the valve seat fixing plate 3402 are arranged in one-to-one correspondence with the stepped hole on the valve core fixing plate 3403. The motor drives the driving gear to rotate and transmit the rotation to the transition gear, and the transition gear drives the plurality of driven gear shafts which are arranged in a plane to rotate relative to the valve core fixing plate, so that the valve core placed on the driven gear shafts also rotates relative to the valve core fixing plate, and further, the rotating valve core and the valve seat which is placed below rotate relatively, the rotating contact grinding of the contact surface between the two is achieved, and the vertical downward grinding pressure is loaded on the valve core 38 by matching with the grinding pressing mechanism 32, so that the rotating contact grinding of the contact surface between the two is sufficiently and effectively promoted.

Further, in order to ensure radial fixing and axial movement of the valve core 38 on the valve core fixing plate, stability of the valve seat 39 in matching grinding with the valve core 38, and the like, a positioning sleeve 3413 for radially clamping the square head of the valve core 38 is arranged at the axial center of the driven gear shaft 3405 of the grinding transmission mechanism 34, namely, the outer wall of the positioning sleeve 3413 is tightly matched with the driven gear shaft 3405, while the inner wall of the positioning sleeve is used for limiting radial rotation of the valve core 38 through a square structure, so that the driven gear shaft 3405 drives the square head at the lower end of the valve core 38 to grind with the valve seat 39; meanwhile, the valve core fixing plate 3403 is provided with a through hole 3415 which faces the corresponding surface of the valve seat fixing plate 3402 and is matched with the valve seats 39 arranged on the plurality of grooves 3416, the through hole 3415 and the corresponding positioning sleeve 3413 are arranged on the same central axis, the top end of the through hole 3415 is provided with an inner shoulder hole platform 3414 for axially propping against the step of the valve core 38, namely, after the valve core fixing plate 3403 descends towards the valve seat fixing plate 3402 under the action of a jacking cylinder 3410, the valve seat 39 arranged on the groove 3416 of the valve seat fixing plate 3402 is sleeved by the through hole 3415 at the bottom of the valve core fixing plate 3403, the bottom of the valve core fixing plate 3403 is pressed on the edge of the valve seat 39 protruding or being leveled with the top surface of the groove 3416, the purpose of fixing the valve seat 39 is achieved, the valve seat 39 is conveniently pressed on the valve seat fixing plate 3402, the valve seat 39 is fixed, the lower end of the valve core 38 and the valve seat 39 are conveniently ground, the lower end of the valve core 38 passes through the inner hole of the inner shoulder hole 3414 of the through hole 3415 and then contacts with the valve seat 39, so that a contact surface between the valve core 38 and the valve seat is formed, namely the inner shoulder hole 3414 does not limit the axial lifting of the lower end of the valve core 38, but a resisting effect is formed on a step (shown in fig. 1) of the valve core 38, and the valve core fixing plate 3403 drives the valve core 38 to lift together in the vertical lifting process.

The valve seat assembling and disassembling mechanism 36 in this embodiment is composed of a fixed seat 361, a third needle cylinder 362, a moving block 363, a fourth needle cylinder 364, a connecting rod 365, a clamping rod 366, and a power linear guide 367, the power linear guide 367 is a self-powered telescopic linear guide, a double-track structure is adopted, the two power linear guides 367 are fixed on a guide rail groove 3409 provided on a valve seat fixed plate 3402, a fixed seat 361 is respectively provided on the two power linear guides 367, the single fixed seat 361 is connected with the moving block 363 having a vertical lifting through the third needle cylinder 362, a pair of fourth needle cylinders 364 having opposite actions are provided on the single moving block 363, a connecting rod 365 is provided on each fourth needle cylinder 364, a clamping rod 366 is provided between the connecting rods 365 provided on two fourth needle cylinders 364 on the same side as the two moving blocks 363, another clamping rod 366 is also provided between the connecting rods 365 provided on two fourth needle cylinders 364 on the same side as the corresponding two moving blocks 363, and the two clamping rods 366 are used for clamping the valve seat 39 arranged on the single row of valve seat and the valve seat 39 is a valve seat device for conveying the valve seat 1.

In another embodiment, the polishing device 3 further includes a transition storage stage 33 that cooperates with the valve core loading and unloading mechanism 34 and is used for temporary storage of the valve core tray, and the transition storage stage 33 further cooperates with the valve core tray transferring mechanism 25 of the valve core conveying device 2, that is, the valve core tray 26 is temporarily stored on the transition storage stage 33 by the valve core tray transferring mechanism 25, and then is in loading and unloading cooperation with the valve core loading and unloading mechanism 31 of the polishing device 3. Specifically, the spool tray transferring mechanism 25 is configured to transfer the spool tray 26 filled with the spool 38 from the spool tray conveyor 24 to the transition storage table 33 for temporary storage through the cooperation of the vertical lifting of the lifting cylinder 131, the horizontal rotation of the revolving cylinder 133 and the clamping operation of the clamping jaw cylinder 135, then the spool 38 is grabbed by the spool loading and unloading mechanism 31 of the grinding device 3 for subsequent grinding procedures, and the empty spool tray can be grabbed from the transition storage table 33 and returned to the spool tray conveyor 24 by the spool tray transferring mechanism 25 for entering the next filling and transferring procedure of the spool 38. In addition, after the polished valve core 38 is conveyed again to the empty valve core tray on the transition storage table 33 by the polishing device 3, the polished valve core tray 26 can be transferred onto the valve core tray conveyor 24 by the valve core tray transfer mechanism 25 and then be taken off. In this way, the transition storage table 33 can be used to form a platform with a material temporary storage function between the valve core loading and unloading mechanism 34 and the valve core conveying device 2, so as to facilitate the working operation of the grinding device 3 and the valve core conveying device 2.

In another embodiment, the grinding device 3 further includes an overhanging auxiliary table 37 disposed on the platform frame 3401 and used for supporting the valve seat loading and unloading mechanism 36, that is, the power linear guide 367 of the valve seat loading and unloading mechanism 36 can support the overhanging auxiliary table 37 after extending from the valve seat fixing plate 3402, so that the motion effect is more stable and reliable, and the overhanging auxiliary table 37 is provided with a slot 371 which is matched with the valve seat loading and unloading mechanism 36 and is used for adapting to the valve seat tray, that is, after the valve seat tray 16 and the valve seat 39 thereof conveyed by the valve seat tray lifting device 15 of the valve seat conveying device 1 pass through the slot 371 from bottom to top, the valve seat loading and unloading mechanism 36 can clamp the valve seat 39 and load and unload the valve seat 39 relative to the valve seat tray.

In another embodiment, the grinding device 3 further comprises an abrasive adding mechanism 35 arranged on the overhanging auxiliary table 37 and positioned above the long hole groove 371, the abrasive adding mechanism is used for adding grinding fluid to the valve seat, the abrasive adding mechanism is composed of a second needle type air cylinder 351, a mounting seat 352, a nozzle 353 and a mounting frame 354, the mounting frame 354 is arranged on the overhanging auxiliary table 37 and also serves as a valve seat positioning and dismounting mechanism 36, namely, after the power linear guide 367 of the valve seat positioning and dismounting mechanism 36 is extended outwards, the mounting frame 354 realizes the distal positioning, so that two clamping rods 366 are ensured to be positioned right above the long hole groove 371 on the overhanging auxiliary table 37, and the valve seat 39 is clamped and put accurately; the second needle cylinder 351 acts on the spout 353 to cause the spout to discharge a predetermined amount of polishing liquid onto the valve seat by the operation of the second needle cylinder 351, and both are mounted on the mounting bracket 354 via the mounting base 352, and the number of the spout 353 is equal to the number of the valve seats 39 to be mounted on and dismounted from the valve seat mounting mechanism. In addition, in order to make the polishing liquid flowing out of the nozzle 353 enter the valve seat 39 better, a telescopic cylinder may be provided between the mounting seat 352 and the mounting frame 354, so that the nozzle 353 has a lifting function to match with the polishing liquid entering the valve seat.

When the automatic grinding machine is used, the valve seat 39 and the valve core 38 of the injection valve assembly to be ground are respectively screened, sequenced and shaped through the respective vibration feeders of the valve seat conveying device 1 and the valve core conveying device 2, so as to be sequentially and slowly conveyed to the clamping stations of the respective placing mechanisms, after the valve assemblies (valve seats or valve cores) are clamped by the finger cylinders of the respective placing mechanisms, the valve assemblies (valve seats or valve cores) are rotated 180 degrees by the rotating cylinders on the valve assemblies to reach one side of the conveyor belt and are placed on the corresponding tray, the tray adopts a flexible body, a plurality of blind hole-shaped placing holes for accommodating the valve assemblies (valve seats or valve cores) are formed, such as 6-10 blind hole-shaped placing holes are formed in a single row, the speed of the conveyor belt is controlled, and the valve assemblies are placed in each placing hole of the tray one by one, and can be detected (the suspension and the starting of the conveyor belt are performed) by using the sensor, so that after the tray reaches the designated position, a plurality of conveying sections of the conveyor belt can be stopped or started as required; then, the tray with the valve assembly is conveyed to a lifting mechanism or a transferring mechanism station by a conveyor belt, and the valve seat and the valve core of the valve assembly are respectively conveyed to a grinding unit by the conveyor belt; the empty tray is clamped by the carrying mechanism and returned to the conveyor belt at one side close to the placing mechanism, and a new valve assembly is placed until the valve assembly placing hole on the tray is full, and then the valve assembly is continuously conveyed to the grinding unit. The valve seat tray with the valve seat 39 is conveyed to a slot 371 of an overhanging auxiliary table 37 of the grinding device 3 through the valve seat conveying device 1, grinding fluid is dripped into the valve seat 39 through the grinding fluid adding mechanism 35, the valve seat 39 is clamped by the valve seat assembling and disassembling mechanism 36 and then is placed in a groove 3416 of a valve seat fixing plate 3402 of the grinding transmission mechanism 34, the conveying and clamping operation of the valve seat 39 is repeated for a plurality of times until the matrix groove 3416 on the valve seat fixing plate 3402 is filled with the valve seat, the valve core tray with the valve core 38 is conveyed to a transition storage table 33 of the grinding device 3 through the valve core conveying device 2, the valve core 38 is clamped by the valve core assembling and disassembling mechanism 31 and then is placed in a positioning sleeve 3413 of a driven gear shaft 3405 of the valve core fixing plate 3403 of the grinding transmission mechanism 34, and the conveying and clamping operation of the valve core 38 is repeated for a plurality of times until the valve core 38 is filled in a positioning sleeve 3413 of a matrix driven gear shaft 3405 of the valve core fixing plate 3403; then, the valve core fixing plate 3403 is lowered towards the valve seat fixing plate 3402 by using the lifting cylinder 3410 of the grinding transmission mechanism 34, the through hole 3415 at the bottom of the valve core fixing plate 3403 is sleeved on the valve seat 39, the bottom of the valve core fixing plate 3403 is pressed against the edge of the valve seat 39, and the valve core 38 on the valve core fixing plate 3403 contacts with the valve seat 39 by self weight; then, the displacement cylinder 322 of the grinding and pressing mechanism 32 is utilized to drive the first needle cylinder 324 on the pressing plate 323 to abut against the top end of the valve core 38, and the grinding pressure (for example, about 1 kilogram of pressure of each cylinder) is loaded by the first needle cylinder, so that the contact surface stress between the valve core 38 and the valve seat 39 meets the corresponding grinding requirement; then, the motor 3408 of the grinding transmission mechanism 34 is utilized to drive the driving gear 3407 to rotate and transmit the driving gear 3407 to the transition gear 3406, and then the transition gear 3406 drives the plurality of driven gear shafts 3405 which are arranged in a plane to rotate relative to the valve core fixing plate 3403, so that the valve core 38 placed on the driven gear shafts 3405 also rotates relative to the valve core fixing plate 3405, and further the rotating valve core 38 and the valve seat 39 which is placed below rotate relatively to achieve rotary contact grinding of a contact surface between the two; finally, after the grinding is performed for a predetermined time, the motor 3408 is stopped, the grinding pressure loaded by the first needle cylinder 324 is removed, the pressing plate 323 is lifted away from the top end of the valve core 38 by the displacement cylinder 322, the valve core fixing plate 3403 is lifted by the lifting cylinder 3410, the valve core 38 is sequentially taken away from the valve core fixing plate 3403 by the valve core loading and unloading mechanism 31 and is transferred to a valve core tray on the transition storage table 33, the valve core is output by the valve core conveying device 2, the valve seat 39 is sequentially taken away from the valve seat fixing plate 3403 by the valve seat loading and unloading mechanism 36 and is transferred to the valve seat tray at the slot 371 of the cantilever auxiliary table 37, the valve seat conveying load 1 is output by the valve seat conveying load 1, and finally, the grinding processing of the valve core and valve seat contact surfaces of the batch injection mechanism assembly is completed, and finally the next grinding processing is performed by repeating the steps.

By adopting the scheme, the conveying device and the system realize the automatic processes of screening, sequencing, feeding, conveying, loading and unloading, grinding and the like of the injection mechanism components (valve seats and valve cores) to be ground, so that the assembly line conveying and batch grinding of the injection mechanism components can meet the automatic grinding processing requirements, and the full-automatic grinding efficiency and quality of the injection mechanism components are improved. Meanwhile, each cylinder can be programmed, so that the valve assembly can be automatically controlled according to program instructions in the transmission process, and labor cost and time cost are reduced.

In addition, each power element listed in the application adopts a cylinder component, because in industrial production, a cylinder is relatively easy to obtain, an air source is clean for production environment, automatic control and the like are easy to realize in operation of the cylinder, and a person skilled in the art should understand that the cylinder is not the only structural form as the power element, and alternative schemes such as a hydraulic cylinder, an electric push rod, a linear motor and the like are all possible.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present utility model, which is intended to be covered by the claims of the present utility model.

Claims

1. The grinding equipment of the micro-lubrication injection mechanism is characterized by comprising a valve seat transmission device (1), a valve core transmission device (2) and a grinding device (3), wherein the valve seat transmission device and the valve core transmission device are arranged in parallel relative to the opposite sides of the grinding device, the valve seat transmission device and the valve core transmission device respectively transmit a valve seat (39) and a valve core (38) to the grinding device, and the grinding device grinds the valve seat and the valve core;

the valve seat transmission device consists of a valve seat vibration feeder (11), a valve seat placement mechanism (12) and a valve seat tray conveyor belt (14), wherein the valve seat vibration feeder is used for screening and sequencing valve seats, the valve seat placement mechanism is used for placing the valve seats coming out of the valve seat vibration feeder on a valve seat tray (16), and the valve seat tray conveyor belt is used for transmitting the valve seat tray;

the valve core transmission device consists of a valve core vibration feeder (21), a valve core placement mechanism (22) and a valve core tray conveyor belt (24), wherein the valve core vibration feeder is used for screening and sequencing valve cores, the valve core placement mechanism is used for placing the valve cores from the valve core vibration feeder on a valve core tray (26), and the valve core tray conveyor belt is used for transmitting the valve core tray;

The grinding device consists of a valve core assembling and disassembling mechanism (31), a grinding and pressing mechanism (32), a grinding transmission mechanism (34) and a valve seat assembling and disassembling mechanism (36), wherein the valve core assembling and disassembling mechanism is used for assembling and disassembling a valve seat between the valve core transmission device and the grinding transmission mechanism, the valve seat assembling and disassembling mechanism is used for assembling and disassembling a valve seat between the valve seat transmission device and the grinding transmission mechanism, the grinding transmission mechanism is used for grinding contact surfaces of the valve core and the valve seat, and the grinding and pressing mechanism is used for loading grinding pressure to the valve core; the valve core assembling and disassembling mechanism and the valve seat assembling and disassembling mechanism do side shifting actions on two opposite sides of the grinding transmission mechanism respectively, and the grinding pressing mechanism does lifting actions above the grinding transmission mechanism.

2. The micro-lubrication injection mechanism grinding apparatus according to claim 1, wherein the valve seat placement mechanism and the valve element placement mechanism are each composed of a rotary cylinder (121) for rotating the finger cylinder, and a finger cylinder (122) for sandwiching the valve seat or the valve element.

3. The micro-lubrication injection mechanism grinding device according to claim 1, wherein the valve seat tray conveyor belt and the valve core tray conveyor belt are both formed into a U-shape or a ring-shape by a conveying straight section (141) and a conveying arc section (142); the valve seat conveying device further comprises a valve seat tray conveying mechanism (13) arranged between two parallel conveying straight sections of the valve seat tray conveying belt and close to one side of the valve seat placing mechanism, the valve core conveying device further comprises a valve core tray conveying mechanism (23) arranged between two parallel conveying straight sections of the valve core tray conveying belt and close to one side of the valve core placing mechanism, the valve seat tray conveying mechanism and the valve core tray conveying mechanism are composed of a lifting cylinder (131), a rotary cylinder (133) and a clamping jaw cylinder (135), the rotary cylinder is arranged on the lifting cylinder through a bottom plate (132), the clamping jaw cylinder is arranged on the rotary cylinder through a support (134) and is used for clamping a valve seat tray or a valve core tray.

4. The micro-lubrication injection mechanism grinding device according to claim 1, wherein the valve seat conveying device further comprises a valve seat tray lifting mechanism (15) for conveying the valve seat to the grinding device, and the valve seat tray lifting mechanism consists of a valve seat tray conveying belt (151), a rod cylinder (152) and a stand column (153), wherein the stand column is provided with the rod cylinder acting on the valve seat tray rotating belt; two rod cylinders are arranged, and two sides of the valve seat tray transfer belt are respectively provided with a fixed block (154) connected with the two rod cylinders;

the valve core conveying device further comprises a valve core tray transferring mechanism (25) for conveying the valve core to the grinding device, and the valve core tray transferring mechanism has the same structure as the valve core tray conveying mechanism.

5. The micro-lubrication injection mechanism grinding device according to claim 1, wherein the valve core loading and unloading mechanism is composed of a horizontal rodless cylinder (311), a vertical rodless cylinder (312), a cross arm (313) and a clamping finger cylinder (314), the two horizontal rodless cylinders are respectively arranged on two sides of the grinding transmission mechanism, one vertical rodless cylinder is respectively arranged on the two horizontal rodless cylinders, a cross arm is arranged between the two vertical rodless cylinders, the cross arm is positioned above the grinding transmission mechanism, and a plurality of clamping finger cylinders are arranged on the corresponding surface of the cross arm facing the grinding transmission mechanism and used for clamping a plurality of valve cores arranged in a single row at intervals.

6. The micro-lubrication injection mechanism grinding device according to claim 1, wherein the valve seat assembling and disassembling mechanism is composed of a fixed seat (361), a third needle cylinder (362), a moving block (363), a fourth needle cylinder (364), a connecting rod (365), a clamping rod (366) and a power linear guide rail (367), the power linear guide rail adopts a double-track structure and is fixed on the grinding transmission mechanism, two power linear guide rails are respectively provided with a fixed seat, a single fixed seat is connected with a vertically lifting moving block through the third needle cylinder, a pair of fourth needle cylinders with opposite actions are arranged on the single moving block, a connecting rod is arranged on each fourth needle cylinder, a clamping rod is arranged between connecting rods arranged on two fourth needle cylinders on the same side of the two moving blocks, another clamping rod is arranged between connecting rods arranged on two fourth needle cylinders on the other same side of the corresponding two moving blocks, and the two clamping rods are used for clamping a plurality of valve seats arranged at intervals in a single row.

7. The micro-lubrication injection mechanism grinding device according to claim 1, wherein the grinding transmission mechanism consists of a platform frame (3401), a valve seat fixing plate (3402), a valve core fixing plate (3403), a driven gear shaft (3405), a transition gear (3406), a driving gear (3407), a motor (3408) and a jacking cylinder (3410), the platform frame is provided with the valve seat fixing plate, the motor and the jacking cylinder, and the valve core fixing plate is arranged above the valve seat fixing plate; the valve seat fixing plate is provided with a plurality of grooves (3416) which are arranged in a matrix and are used for placing valve seats; the valve core fixing plate is provided with a plurality of driven gear shafts which are arranged in a matrix and used for placing valve cores, and the driven gear shafts and the grooves are in a one-to-one corresponding upper and lower structure and are meshed with each other on the same horizontal plane for transmission; the valve core fixing plate is provided with a transition gear meshed with a driven gear shaft for transmission, the output shaft of the motor is provided with a driving gear, and the transition gear is meshed with the driving gear for transmission; the driven gear shaft rotates on the valve core fixing plate through a bearing (3412); the jacking air cylinder is connected with the valve core fixing plate through a connecting piece (3411), acts on the valve core fixing plate and is used for lifting the valve core fixing plate above the valve seat fixing plate; a guide rod (3404) is arranged between the valve seat fixing plate and the valve core fixing plate.

8. The micro-lubrication injection mechanism grinding device according to claim 7, wherein a positioning sleeve (3413) for radially clamping the square head of the valve core is arranged at the axial center of the driven gear shaft; the valve core fixing plate is provided with through holes (3415) facing the corresponding surface of the valve seat fixing plate and matched with the valve seats arranged on the grooves, the through holes and the corresponding positioning sleeve are arranged on the same central axis, and the top ends of the through holes are provided with inner shoulder holes (3414) for axially abutting against the valve core steps.

9. The micro-lubrication injection mechanism grinding device according to claim 1, wherein the grinding and pressing mechanism consists of a gate frame (321), a displacement cylinder (322), a pressing plate (323) and a first needle cylinder (324), the displacement cylinder is arranged on the gate frame, the pressing plate is connected to the displacement cylinder, the pressing plate is located above the grinding transmission mechanism, a plurality of first needle cylinders for loading grinding pressure on one-to-one corresponding valve cores and arranged in a matrix are arranged on the corresponding surface of the pressing plate, and the top head of each first needle cylinder is provided with a wear-resistant nylon block (325).

10. The micro-lubrication injection mechanism grinding apparatus according to any one of claims 1-9, wherein the grinding device further comprises a transition storage stage (33) engaged with the spool handling mechanism for spool pallet temporary storage; the grinding device further comprises an overhanging auxiliary table (37) which is arranged on the platform frame and used for supporting the valve seat loading and unloading mechanism, and a long hole groove (371) which is matched with the valve seat loading and unloading mechanism and is used for adapting to the valve seat tray is formed in the overhanging auxiliary table; the grinding device also comprises an abrasive adding mechanism (35) which is arranged on the overhanging auxiliary table and is positioned above the long hole groove, wherein the abrasive adding mechanism consists of a second needle type air cylinder (351), a mounting seat (352), a flow nozzle (353) and a mounting frame (354), and the mounting frame is arranged on the overhanging auxiliary table and also serves as a positioning valve seat assembling and disassembling mechanism; the second needle-shaped air cylinder acts on the flow nozzle and is arranged on the mounting frame through the mounting seat; the number of the flow nozzles is equal to the number of the valve seats assembled and disassembled by the valve seat assembling and disassembling mechanism.