Micro-lubrication injection mechanism automatic grinding equipment and method

Abstract

The present invention discloses a micro-lubrication injection mechanism automatic grinding equipment and method, belonging to the technical field of micro-lubrication. The grinding equipment includes a valve seat transmission device, a valve core transmission device, a grinding device and a controller. The valve seat transmission device and the valve core transmission device are arranged in parallel on opposite sides relative to the grinding device. The valve seat transmission device and the valve core transmission device respectively convey the valve seat and the valve core to the grinding device, and then the grinding device grinds the valve seat and the valve core. The valve seat transmission device consists of a valve seat vibrating feeder, a valve seat placing mechanism and a valve seat tray conveying mechanism. The valve core transmission device consists of a valve core vibrating feeder, a valve core placing mechanism and a valve core tray conveying mechanism. The grinding device consists of a valve core loading and unloading mechanism, a grinding pressure applying mechanism, a grinding transmission mechanism and a valve seat loading and unloading mechanism. The present invention realizes the batch grinding processing requirements of the valve seat and the valve core in the injection mechanism assembly, which helps to improve the efficiency and quality of the fully automatic grinding of the injection mechanism assembly.

Description

Technical Field

[0001] The present invention belongs to the technical field of minimum quantity lubrication, and provides an automatic grinding equipment and method for a minimum quantity lubrication injection mechanism. Background Art

[0002] Minimum quantity lubrication, also known as minimal quantity lubrication (MQL), is a lubrication method for metal processing, that is, semi-dry cutting. It refers to a cutting method in which compressed gas (air, nitrogen, carbon dioxide, etc.) is mixed and vaporized with an extremely small amount of lubricating oil to form micron-sized droplets, which are then sprayed into the processing area for effective lubrication.

[0003] A spraying mechanism is commonly used in the formation of micron-sized droplets in minimum quantity lubrication. This spraying mechanism conveys fluid in milliliters per hour. For example, in the well-known patent document CN217371588U - a post-adjustable minimum quantity lubrication spraying mechanism, a relatively precise (Ra0.005) contact surface is required between the valve core and the valve seat. As Figure 1 shown, if the matching surface finish of the contact surface is insufficient, it will cause uneven fluid passage and large fluctuations in atomization size. Therefore, it is necessary to grind the mating surface between the valve seat and the valve core. However, the existing grinding methods usually use manual grinding, which has low efficiency. Moreover, as components of the spraying mechanism, the valve core and the valve seat are mass-produced during factory grinding. Therefore, the current production process can no longer meet the requirements of automated assembly line operations. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide an automatic grinding equipment and method for a minimum quantity lubrication injection mechanism to meet the requirements of mass production grinding of the components of the injection mechanism in an assembly line manner.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] The present invention provides an automatic grinding equipment for a micro-lubrication injection mechanism, which includes a valve seat transmission device, a valve core transmission device and a grinding device. The valve seat transmission device and the valve core transmission device are arranged in parallel on opposite sides relative to the grinding device. The valve seat transmission device and the valve core transmission device respectively convey the valve seat and the valve core to the grinding device, and then the grinding device grinds the valve seat and the valve core. The valve seat transmission device consists of a valve seat vibrating feeder, a valve seat placing mechanism and a valve seat tray conveying mechanism. The valve seat vibrating feeder is used for screening and sorting the valve seats. The valve seat placing mechanism is used for placing the valve seats coming out of the valve seat vibrating feeder on the valve seat trays. The valve seat tray conveying mechanism is used for conveying the valve seat trays. The valve core transmission device consists of a valve core vibrating feeder, a valve core placing mechanism and a valve core tray conveying mechanism. The valve core vibrating feeder is used for screening and sorting the valve cores. The valve core placing mechanism is used for placing the valve cores coming out of the valve core vibrating feeder on the valve core trays. The valve core tray conveying mechanism is used for conveying the valve core trays. The grinding device consists of a valve core loading and unloading mechanism, a grinding pressure applying mechanism, a grinding transmission mechanism and a valve seat loading and unloading mechanism. The valve core loading and unloading mechanism is used for loading and unloading the valve seats between the valve core transmission device and the grinding transmission mechanism. The valve seat loading and unloading mechanism is used for loading and unloading the valve seats between the valve seat transmission device and the grinding transmission mechanism. The grinding transmission mechanism is used for grinding between the contact surfaces of the valve core and the valve seat. The grinding pressure applying mechanism is used for applying grinding pressure to the valve core. The valve core loading and unloading mechanism and the valve seat loading and unloading mechanism respectively perform lateral movement actions on opposite sides of the grinding transmission mechanism. The grinding pressure applying mechanism performs a lifting action above the grinding transmission mechanism. It further includes a controller electrically connected to the valve seat vibrating feeder, the valve seat tray conveying mechanism, the valve core vibrating feeder and the valve core tray conveying mechanism. The controller is also electrically connected to a first sensor for positioning the initial loading of the valve seat on the valve seat tray, a second sensor for positioning the valve seat tray entering the valve seat loading and unloading mechanism, a fourth sensor for positioning the initial loading of the valve core on the valve core tray, and a fifth sensor for positioning the valve core tray entering the valve core loading and unloading mechanism.

[0007] Optionally, both the valve seat placing mechanism and the valve core placing mechanism are composed of a rotary cylinder and a finger cylinder. 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. The controller is electrically connected to a first electric reversing valve and a second electric reversing valve for respectively controlling the rotary cylinder and the finger cylinder provided in the valve seat placing mechanism. The controller is electrically connected to a seventh electric reversing valve and an eighth electric reversing valve for respectively controlling the rotary cylinder and the finger cylinder provided in the valve core placing mechanism.

[0008] Optionally, both the valve seat tray conveying mechanism and the valve core tray conveying mechanism are composed of a straight conveyor belt and an arc conveyor belt, forming a U-shaped or annular shape; the valve seat transmission device further includes a valve seat tray handling mechanism disposed between two parallel straight conveyor belts of the valve seat tray conveying mechanism and close to the valve seat placing mechanism side, and the valve core transmission device further includes a valve core tray handling mechanism disposed between two parallel straight conveyor belts of the valve core tray conveying mechanism and close to the valve core placing mechanism side. Both the valve seat tray handling mechanism and the valve core tray handling mechanism are composed of a lifting cylinder, a rotary cylinder, and a jaw cylinder. The rotary cylinder is disposed on the lifting cylinder through a bottom plate, and the jaw cylinder is disposed on the rotary cylinder through a bracket. The jaw cylinder is used for clamping and placing the valve seat tray or the valve core tray; the controller is electrically connected to a third sensor for positioning an empty valve seat tray and transporting it to the valve seat initial loading position, and a sixth sensor for positioning an empty valve core tray and transporting it to the valve core initial loading position; the controller is electrically connected to a third electric reversing valve, a fourth electric reversing valve, and a fifth electric reversing valve for respectively controlling the lifting cylinder, the rotary cylinder, and the jaw cylinder provided in the valve seat tray handling mechanism; the controller is electrically connected to a ninth electric reversing valve, a tenth electric reversing valve, and an eleventh electric reversing valve for respectively controlling the lifting cylinder, the rotary cylinder, and the jaw cylinder provided in the valve core tray handling mechanism.

[0009] Optionally, the valve seat transmission device further includes a valve seat tray transfer mechanism for transporting the valve seat to the grinding device, and the valve seat tray transfer mechanism is composed of a straight transfer belt, a lifting rodless cylinder, and a column. The lifting rodless cylinder acting on the valve seat tray rotating belt is disposed on the column; two lifting rodless cylinders are provided, and fixed blocks connected to the two lifting rodless cylinders are respectively disposed on both sides of the straight transfer belt; the valve core transmission device further includes a valve core tray transfer mechanism for transporting the valve core to the grinding device, and the valve core tray transfer mechanism has the same structure as the valve core tray handling mechanism; the controller is electrically connected to the straight transfer belt and a sixth electric reversing valve for controlling the lifting rodless cylinder; the controller is electrically connected to a twelfth electric reversing valve, a thirteenth electric reversing valve, and a fourteenth electric reversing valve for respectively controlling the lifting cylinder, the rotary cylinder, and the jaw cylinder provided in the valve core tray transfer mechanism.

[0010] Optionally, the valve core loading and unloading mechanism is composed of a horizontal rodless cylinder, a vertical rodless cylinder, a crossbar, and a finger cylinder. Two horizontal rodless cylinders are provided and are respectively disposed on both sides of the grinding transmission mechanism. A vertical rodless cylinder is respectively disposed on each of the two horizontal rodless cylinders. A crossbar is disposed between the two vertical rodless cylinders. The crossbar is located above the grinding transmission mechanism, and a plurality of finger cylinders are disposed on the corresponding surface of the crossbar facing the grinding transmission mechanism for clamping and placing a plurality of valve cores arranged at intervals in a single row; the controller is electrically connected to a fifteenth electric reversing valve, a sixteenth electric reversing valve, and a seventeenth electric reversing valve for respectively controlling the horizontal rodless cylinder, the vertical rodless cylinder, and the finger cylinder.

[0011] Optionally, the valve seat loading and unloading mechanism consists of a fixed seat, a third needle-type cylinder, a moving block, a fourth needle-type cylinder, a connecting rod, a clamping rod, and a power linear guide. The power linear guide adopts a double-rail structure and is fixed on the grinding transmission mechanism. A fixed seat is provided on each of the two power linear guides. A moving block with vertical lifting is connected to a single fixed seat through a third needle-type cylinder. A pair of fourth needle-type cylinders with relative movements are provided on a single moving block. A connecting rod is provided on each fourth needle-type cylinder. A clamping rod is provided between the connecting rods on the two fourth needle-type cylinders on the same side of the two moving blocks. Another clamping rod is provided between the connecting rods on the two fourth needle-type cylinders on the other same side of the corresponding two moving blocks. The two clamping rods are used to clamp and place multiple valve seats arranged at intervals in a single row. The controller is electrically connected to the power linear guide, the twenty-second electric reversing valve, and the twenty-third electric reversing valve for respectively controlling the third needle-type cylinder and the fourth needle-type cylinder.

[0012] 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 lifting cylinder. A valve seat fixing plate, a motor, and a lifting cylinder are provided on the platform frame. The valve core fixing plate is arranged above the valve seat fixing plate. Multiple grooves arranged in a matrix and used for placing valve seats are provided on the valve seat fixing plate. Multiple driven gear shafts arranged in a matrix and used for placing valve cores are provided on the valve core fixing plate. The multiple driven gear shafts and the multiple grooves have a one-to-one corresponding up-and-down structure and are meshed and driven with each other on the same horizontal plane. A transition gear meshed and driven with one driven gear shaft is provided on the valve core fixing plate. A driving gear is provided on the output shaft of the motor. The transition gear is also meshed and driven with the driving gear. The driven gear shaft rotates on the valve core fixing plate through a bearing. The lifting cylinder is connected to the valve core fixing plate through a connecting member. The lifting cylinder acts on the valve core fixing plate and is used to lift the valve core fixing plate above the valve seat fixing plate. Guide rods are provided between the valve seat fixing plate and the valve core fixing plate. A positioning sleeve for radially clamping the square head of the valve core is provided at the axial center of the driven gear shaft. Through holes adapted to the valve seats provided on the multiple grooves are provided on the corresponding surface of the valve core fixing plate facing the valve seat fixing plate. The through holes and the corresponding positioning sleeves are on the same central axis. An inner shoulder hole platform for axially abutting against the step of the valve core is provided at the top of the through hole. The controller is electrically connected to a seventh sensor for positioning the position of the valve seat placed in the valve seat fixing plate and an eighth sensor for positioning the position of the valve core placed in the valve core fixing plate. The controller is electrically connected to the motor and the twentieth electric reversing valve for controlling the lifting cylinder.

[0013] Optionally, the grinding pressure mechanism is composed of a door-type frame, a displacement cylinder, a pressure plate, and a first needle-type cylinder. The door-type frame is provided with a displacement cylinder, the displacement cylinder is connected with a pressure plate, the pressure plate is located above the grinding transmission mechanism, and the pressure plate is provided with a plurality of first needle-type cylinders arranged in a matrix for loading grinding pressure on the valve core one by one on the corresponding surface facing the grinding transmission mechanism, and the top of the first needle-type cylinder is provided with a wear-resistant nylon block; the controller is electrically connected with an eighteenth electric reversing valve and a nineteenth electric reversing valve for respectively controlling the displacement cylinder and the first needle-type cylinder.

[0014] Optionally, the grinding device also includes a transition storage table that cooperates with the valve core loading and unloading mechanism and is used for temporarily storing the valve core tray; the grinding device also includes a cantilevered auxiliary table arranged on the platform frame and used to support the valve seat loading and unloading mechanism, and the cantilevered auxiliary table is provided with a long hole groove that cooperates with the valve seat loading and unloading mechanism and is used to adapt to the valve seat tray; the grinding device also includes an abrasive adding mechanism arranged on the cantilevered auxiliary table and located above the long hole groove, the abrasive adding mechanism consists of a second needle-type cylinder, a mounting seat, a flow nozzle, and a mounting frame, the mounting frame is arranged on the cantilevered auxiliary table, and also serves as a positioning valve seat loading and unloading mechanism; the second needle-type cylinder acts on the flow nozzle, and both are arranged on the mounting frame through the mounting seat; the number of flow nozzles is equivalent to the number of valve seats loaded and unloaded by the valve seat loading and unloading mechanism; the controller is electrically connected to a twenty-first electric reversing valve for controlling the second needle-type cylinder.

[0015] The present invention also provides an automatic grinding method for a micro-lubrication injection mechanism. Based on the above-mentioned automatic grinding equipment for the micro-lubrication injection mechanism, the automatic grinding method comprises:

[0016] 1) The valve seat is transported to the grinding device through the valve seat transmission device;

[0017] 1.1) The valve seats are first sorted and output by the valve seat vibrating feeder, and then the valve seat placement mechanism places the sorted and output valve seats on the valve seat pallet in sequence, and the valve seat pallet conveying mechanism transmits the valve seat pallet, and the valve seat pallet transfer mechanism conveys the valve seat pallet to the valve seat loading and unloading mechanism, and the valve seat pallet handling mechanism also carries the valve seat pallet;

[0018] 1.2) The controller controls the start and stop of the valve seat vibration feeder, the valve seat placement mechanism, the valve seat pallet transmission mechanism, the valve seat pallet transfer mechanism and the valve seat pallet handling mechanism, and the controller controls each sensor to respectively locate the position where the valve seat pallet is first loaded into the valve seat, the position where the valve seat pallet enters the valve seat loading and unloading mechanism, and the empty valve seat pallet is transported to the position where the valve seat is first loaded;

[0019] 1.3) The controller separately controls the first electric reversing valve and the second electric reversing valve of the rotary cylinder and the finger cylinder provided in the valve seat placement mechanism; and the controller separately controls the third electric reversing valve, the fourth electric reversing valve, and the fifth electric reversing valve of the lifting cylinder, the slewing cylinder, and the jaw cylinder provided in the valve seat tray handling mechanism; and the controller controls the sixth electric reversing valve of the lifting rodless cylinder provided in the valve seat transfer mechanism;

[0020] 2) The valve core is conveyed to the grinding device through the valve core transmission device;

[0021] 2.1) First, the valve core is sorted and output by the valve core vibrating feeder, and then the valve core placement mechanism sequentially places the sorted valve cores on the valve core tray. The valve core tray is conveyed and loaded with the valve cores by the valve core tray conveyor mechanism, and the valve core tray transfer mechanism conveys the valve core tray to the valve core loading and unloading mechanism. The valve core tray handling mechanism also transports the valve core tray;

[0022] 2.2) The controller controls the start and stop of the valve core vibrating feeder, the valve core placement mechanism, the valve core tray conveyor mechanism, the valve core tray transfer mechanism, and the valve core tray handling mechanism. The controller also controls each sensor to respectively locate the position where the valve core tray is initially loaded with valve cores, the position where the valve core tray enters the valve core loading and unloading mechanism, and the position where the empty valve core tray is transported to the initial valve core loading position;

[0023] 2.3) The controller separately controls the seventh electric reversing valve and the eighth electric reversing valve of the rotary cylinder and the finger cylinder provided in the valve core placement mechanism; and the controller separately controls the ninth electric reversing valve, the tenth electric reversing valve, and the eleventh electric reversing valve of the lifting cylinder, the slewing cylinder, and the jaw cylinder provided in the valve core tray handling mechanism; and the controller separately controls the twelfth electric reversing valve, the thirteenth electric reversing valve, and the fourteenth electric reversing valve of the lifting cylinder, the slewing cylinder, and the jaw cylinder provided in the valve core tray transfer mechanism;

[0024] 3) The valve seat and the valve core are ground by the grinding device;

[0025] 3.1) First, the valve seat loading and unloading mechanism loads and unloads the valve seat from the valve seat tray transfer mechanism onto the valve seat fixing plate of the grinding transmission mechanism, and the grinding fluid adding mechanism adds grinding fluid into the valve seat. Then, the valve core loading and unloading mechanism loads and unloads the valve core from the valve core tray transfer mechanism or the transitional storage table onto the valve core fixing plate of the grinding transmission mechanism. Then, the lifting cylinder of the grinding transmission mechanism lowers the valve core fixing plate and presses it against the valve seat on the valve seat fixing plate. The grinding pressure applying mechanism applies grinding pressure to the valve core, and the motor of the grinding transmission mechanism drives the valve core to rotate to grind with the valve seat;

[0026] 3.2) And the controller controls the start and stop of the valve seat loading and unloading mechanism, the grinding transmission mechanism, the grinding pressure application mechanism, the valve core loading and unloading mechanism, and the grinding agent adding mechanism, and the controller controls each sensor to respectively locate the position of the valve seat placed in the valve seat fixing plate and the position of the valve core placed in the valve core fixing plate;

[0027] 3.2) And the controller respectively controls the fifteenth electric reversing valve, the sixteenth electric reversing valve, and the seventeenth electric reversing valve of the horizontal rodless cylinder, the vertical rodless cylinder, and the finger cylinder provided in the valve core loading and unloading mechanism; and the controller respectively controls the eighteenth electric reversing valve and the nineteenth electric reversing valve of the displacement cylinder and the first needle cylinder provided in the grinding pressure application mechanism; and the controller respectively controls the twentieth electric reversing valve of the motor and the lifting cylinder provided in the grinding transmission mechanism; and the controller respectively controls the twenty-second electric reversing valve and the twenty-third electric reversing valve of the power linear guide and the third needle cylinder and the fourth needle cylinder provided in the valve seat loading and unloading mechanism; and the controller controls the twenty-first electric reversing valve of the second needle cylinder provided in the grinding agent adding mechanism;

[0028] 4) Output the ground valve seat and valve core;

[0029] 4.1) Stop the motor of the grinding transmission mechanism, lift the grinding pressure application mechanism, lift the lifting cylinder of the grinding transmission mechanism, load and unload the valve seat from the valve seat fixing plate to the valve seat tray transfer mechanism by the valve seat loading and unloading mechanism, load and unload the valve core from the valve core fixing plate to the valve core tray transfer mechanism by the valve core loading and unloading mechanism, and then transmit the valve seat tray by the valve seat tray conveyor and transmit the valve core tray by the valve core tray conveyor.

[0030] The beneficial effects of the present invention are:

[0031] 1. The micro-lubrication injection mechanism automatic grinding equipment mentioned in the present invention realizes the automatic processes of screening, sorting, feeding, transporting, loading and unloading, and grinding of the valve seat and valve core in the injection mechanism assembly, enabling the pipeline transportation and batch grinding of the injection valve assembly to meet the requirements of automatic grinding processing, and helping to improve the efficiency and quality of the full-automatic grinding of the injection mechanism assembly.

[0032] 2. The micro-lubrication injection mechanism automatic grinding method mentioned in the present invention can program each sensor, cylinder and motor, so that the injection mechanism assembly can be automatically controlled according to the program instructions during the transportation and grinding processes, reducing the labor cost and time cost.

[0033] Other advantages, objectives and features of the present invention will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. Brief Description of the Drawings

[0034] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in detail and preferably below in conjunction with the drawings, where:

[0035] Figure 1 is a schematic structural diagram of the injection mechanism assembly in the prior art;

[0036] Figure 2 is a front perspective schematic diagram of the automatic grinding equipment for the micro-lubrication injection mechanism of the present invention;

[0037] Figure 3 is Figure 2 a bottom perspective schematic diagram of;

[0038] Figure 4 is Figure 2 a top plan schematic diagram of;

[0039] Figure 5 is Figure 2 a front perspective schematic diagram of the valve seat transfer device in;

[0040] Figure 6 is Figure 5 a schematic structural diagram of the valve seat placement mechanism in;

[0041] Figure 7 is Figure 5 a schematic structural diagram of the valve seat tray handling mechanism in;

[0042] Figure 8 is Figure 5 a schematic structural diagram of the valve seat tray transfer mechanism in;

[0043] Figure 9 is Figure 2 a front perspective schematic diagram of the valve core transfer device in;

[0044] Figure 10 is Figure 2 a front perspective schematic diagram of the grinding device in;

[0045] Figure 11 is Figure 10 a bottom perspective schematic diagram of;

[0046] Figure 12 is Figure 10 a top plan schematic diagram of;

[0047] Figure 13 is Figure 10 a schematic structural diagram of the valve core loading and unloading mechanism in;

[0048] Figure 14 is Figure 10Schematic diagram of the grinding pressure mechanism therein;

[0049] Figure 15 is Figure 10 Schematic diagram of the grinding drive mechanism therein;

[0050] Figure 16 is Figure 15 Front view schematic diagram of;

[0051] Figure 17 is Figure 16 A - A sectional view schematic diagram in;

[0052] Figure 18 is Figure 17 Enlarged schematic diagram of part B in;

[0053] Figure 19 is Figure 10 Schematic diagram of the abrasive adding mechanism therein;

[0054] Figure 20 is Figure 10 Schematic diagram of the valve seat loading and unloading mechanism therein;

[0055] Figure 21 Schematic diagram of the positioning sensor control principle of the automatic grinding equipment of the micro - lubrication injection mechanism of the present invention;

[0056] Figure 22 Schematic diagram of the valve seat transmission device control principle of the automatic grinding equipment of the micro - lubrication injection mechanism of the present invention;

[0057] Figure 23 Schematic diagram of the valve core transmission device control principle of the automatic grinding equipment of the micro - lubrication injection mechanism of the present invention;

[0058] Figure 24 Schematic diagram of the grinding device control principle of the automatic grinding equipment of the micro - lubrication injection mechanism of the present invention;

[0059] Reference numerals:

[0060] 1 - Valve seat transmission device;

[0061] 11 - Valve seat vibrating feeder, 12 - Valve seat placing mechanism, 13 - Valve seat tray handling mechanism, 14 - Valve seat tray conveying mechanism, 15 - Valve seat tray transfer mechanism, 16 - Valve seat tray;

[0062] 121 - Rotary cylinder, 122 - Finger cylinder;

[0063] 131 - Lifting cylinder, 132 - Bottom plate, 133 - Rotary cylinder, 134 - Bracket, 135 - Jaw cylinder;

[0064] 141 - Straight - section conveyor belt, 142 - Arc - section conveyor belt;

[0065] 151 - Straight - section transfer belt, 152 - Lifting rodless cylinder;

[0066] 2 - Spool transmission device;

[0067] 21 - Spool vibrating feeder, 22 - Spool placement mechanism, 23 - Spool tray handling mechanism, 24 - Spool tray conveying mechanism, 25 - Spool tray transfer mechanism, 26 - Spool tray;

[0068] 3 - Grinding device;

[0069] 31 - Spool loading and unloading mechanism, 32 - Grinding pressure - applying mechanism, 33 - Intermediate storage table, 34 - Grinding drive mechanism, 35 - Grinding agent adding mechanism, 36 - Valve seat loading and unloading mechanism, 37 - Cantilever auxiliary table, 38 - Spool, 39 - Valve seat;

[0070] 311 - Horizontal rodless cylinder, 312 - Vertical rodless cylinder, 313 - Crossbar, 314 - Finger - clamping cylinder;

[0071] 321 - Gantry frame, 322 - Displacement cylinder, 323 - Pressing plate, 324 - First needle - type cylinder, 325 - Wear - resistant nylon block;

[0072] 3401 - Platform frame, 3402 - Valve seat fixing plate, 3403 - Spool fixing plate, 3404 - Guide rod, 3405 - Driven gear shaft, 3406 - Intermediate gear, 3407 - Driving gear, 3408 - Motor, 3409 - Guide rail groove, 3410 - Lifting cylinder, 3411 - Connecting piece, 3412 - Bearing, 3413 - Positioning sleeve, 3414 - Inner shoulder hole table, 3415 - Through - hole, 3416 - Groove;

[0073] 351 - Second needle - type cylinder, 352 - Mounting seat, 353 - Nozzle, 354 - Mounting frame;

[0074] 361 - Fixed seat, 362 - Third needle - type cylinder, 363 - Moving block, 364 - Fourth needle - type cylinder, 365 - Connecting rod, 366 - Clamping rod, 367 - Power linear guide;

[0075] 371 - Long - hole groove. Detailed implementation manners

[0076] The present invention will be further described below in conjunction with the detailed implementation manners. Among them, the attached drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation to this patent; in order to better illustrate the embodiments of the present invention, some components in the drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well - known structures and their descriptions in the drawings may be omitted.

[0077] Please refer to Figures 2 - 20 , a micro-lubrication injection mechanism automatic grinding equipment of the present invention includes a valve seat transmission device 1, a valve core transmission device 2 and a grinding device 3. 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 vibratory feeders are biased towards the same side with respect to the grinding device 3. The valve seat transmission device 1 is used to convey the component valve seat 39 of the injection valve to be ground to the grinding device 3, and the valve core transmission device 2 is used to convey the component valve core 38 of the injection valve to be ground that matches 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 components 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; adopting the above solution, this grinding system can realize the automatic processes of screening, sorting, feeding, transporting, loading and unloading, and grinding of the valve seat and the valve core in the injection mechanism components, so that the pipeline conveying and batch grinding of the injection valve components can meet the requirements of automatic grinding processing, and help to improve the efficiency and quality of the fully automatic grinding of the injection mechanism components.

[0078] Specifically, the valve seat transfer device 1 in this example is composed of a valve seat vibrating feeder 11, a valve seat placing mechanism 12, a valve seat tray handling mechanism 13, a valve seat tray conveying mechanism 14, and a valve seat tray transfer mechanism 15. The valve seat vibrating feeder 11 is used to screen and sort valve seats. The valve seat placing mechanism 12 is connected after the valve seat vibrating feeder 11 and is used to place the valve seats 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 installed and fixed through a frame and is used to rotate the finger cylinder 122 by 180°. The finger cylinder 122 is used to clamp and place the valve seat 39. The valve seat tray conveying mechanism 14 is located on one side of the valve seat placing mechanism 12 and is used to convey the valve seat tray 16. The valve seat tray conveying mechanism 14 is composed of two parallel straight conveyor belts 141 and an arc conveyor belt 142, forming a U shape. The valve seat tray handling mechanism 13 is arranged between the two parallel straight conveyor belts 141 of the valve seat tray conveying mechanism 14 and close to the side of the valve seat placing mechanism 12, and is used to quickly carry out transposition handling on the empty valve seat tray 16 on the valve seat tray conveying mechanism 14. The valve seat tray handling mechanism 13 is composed of a lifting cylinder 131, a rotary cylinder 133, and a jaw cylinder 135. The lifting cylinder 131 is installed and fixed through a frame and is used for vertical lifting. The rotary cylinder 133 is installed on the lifting cylinder 131 through a bottom plate 132 and is used for horizontal rotation. The jaw cylinder 135 is installed on the rotary cylinder 133 through a bracket 134 and is used for clamping and placing the valve seat tray 16, that is, the empty valve seat tray placed on the far-side straight conveyor belt of the valve seat tray conveying mechanism 14 away from the valve seat placing mechanism 12 is quickly carried to the near-side straight conveyor belt close to the valve seat placing mechanism 12 through the vertical lifting of the lifting cylinder 131, the horizontal rotation of the rotary cylinder 133, and the clamping and placing operation of the jaw cylinder 135, so that the empty valve seat tray is transposed and carried on the valve seat tray conveying mechanism and is located at the station of the valve seat placing mechanism 12 to realize the placement of new valve seats 39. The valve seat tray transfer mechanism 15 is used to convey the valve seat 39 to the grinding device 3. The valve seat tray transfer mechanism 15 is composed of a straight transfer belt 151 and a lifting rodless cylinder 152. The lifting rodless cylinder 152 is installed and fixed through a frame and is used to lift the straight transfer belt 151. A double-acting cylinder can be used and is arranged on both sides of the straight transfer belt to improve the lifting stability of the straight transfer belt. The straight transfer belt 151 is used to carry the valve seat tray 16, and multiple valve seats are installed in the valve seat tray 16 to convey the valve seats to be ground to the grinding device 3.That is, the valve seat tray transfer mechanism 15 vertically lifts the straight-section transfer belt of the rodless cylinder 152 to lift the valve seat tray 16 loaded with the valve seat to the grinding device 3. After the grinding device 3 grabs the valve seat, the subsequent grinding process is carried out. The empty valve seat tray can be lowered by the valve seat tray transfer mechanism 15 to the same height as the valve seat tray conveyor 14, and the straight-section transfer belt 151 transports the empty valve seat tray to the valve seat tray conveyor 14 to enter the next valve seat loading and transfer process. In addition, the valve seat tray transfer mechanism 15 can also transfer the valve seat 39 after grinding by the grinding device 3 to the valve seat tray conveyor 14 and then offline.

[0079] The spool transfer device 2 in this embodiment is composed of a spool vibrating feeder 21, a spool placement mechanism 22, a spool tray handling mechanism 23, a spool tray conveyor 24, and a spool tray transfer mechanism 25. Among them, the spool vibrating feeder 21 is used to screen and sort the spools. The spool placement mechanism 22 is used to place the spools output by the spool vibrating feeder 21 on the spool tray 26. The spool tray conveyor 24 is used to transport the spool tray 26. The spool tray handling mechanism 23 is arranged between the two parallel straight-section conveyor belts 141 of the spool tray conveyor 24 and close to the spool placement mechanism side. The spool tray transfer mechanism 25 is used to convey the spools to the grinding device 3. The spool vibrating feeder 21 has the same structure and similar effects as the valve seat vibrating feeder 11. The spool placement mechanism 22 has the same structure and similar effects as the valve seat placement mechanism 12. The spool tray conveyor 24 has the same structure and similar effects as the valve seat tray conveyor 14. The spool tray handling mechanism 23 and the spool tray transfer mechanism 25 both have the same structure and similar effects as the valve seat tray handling mechanism 13, only the objects they target are different, that is, they target the valve seat and the spool respectively, so they will not be elaborated one by one.

[0080] In another embodiment, the valve seat tray conveyor 14 or the spool tray conveyor 24 can be composed of two parallel straight-section conveyor belts 141 and two arc-section conveyor belts 142 to form a ring shape, so that the valve seat tray 16 or the spool tray 26 can circulate on the valve seat tray conveyor 14 and the spool tray conveyor 24 respectively, and the valve seat tray handling mechanism 13 or the spool tray handling mechanism 23 can be omitted.

[0081] In another embodiment, the valve seat tray transfer mechanism 15 can also be replaced by another valve seat tray handling mechanism 13, and the purpose of conveying the valve seat 39 to the grinding device 3 can also be achieved.

[0082] In this embodiment, the grinding device 3 mainly consists of a valve core loading and unloading mechanism 31, a grinding pressure applying mechanism 32, a grinding transmission mechanism 34, and a valve seat loading and unloading mechanism 36. The valve core loading and unloading mechanism 31 is used to load and unload the valve core 38 conveyed by the valve core transmission device 2 onto and from the grinding transmission mechanism 34. The valve seat loading and unloading mechanism 36 is used to load and unload the valve seat 39 conveyed by the valve seat transmission device 1 onto and from the grinding transmission mechanism 34. The valve seat transmission device 1 and the valve core transmission device 2 mainly use their respective conveying mechanisms and the trays thereon to achieve the purpose of conveying the valve seat and the valve core to the grinding device 3 in a pipeline manner respectively. The grinding transmission mechanism 34 is used to grind between the contact surfaces (such as Figure 1 as shown) of the valve core 38 and the valve seat 39 of the injection mechanism assembly. The grinding pressure applying mechanism 32 is used to apply grinding pressure to the valve core 38 to ensure the grinding operation between the valve core 38 and the valve seat 39. The valve core loading and unloading mechanism 31 and the valve seat loading and unloading mechanism 36 perform lateral movement actions on the opposite sides of the grinding transmission mechanism 34 respectively, and the grinding pressure applying mechanism 32 performs a lifting action above the grinding transmission mechanism 34. This grinding device can meet the batch grinding processing requirements of the contact surfaces between the valve seat and the valve core in the injection mechanism assembly.

[0083] The valve core loading and unloading mechanism 31 in this embodiment consists of a horizontal rodless cylinder 311, a vertical rodless cylinder 312, a crossbar 313, and a finger cylinder 314. The horizontal rodless cylinder 311 is used for horizontal movement, and there are two of them, which are respectively located on both sides of the grinding transmission mechanism 34. A vertical rodless cylinder 312 is installed on each of the two horizontal rodless cylinders 311. The vertical rodless cylinder 312 is used for vertical movement. A crossbar 313 is arranged between the two vertical rodless cylinders 312, and the crossbar 313 is located above the grinding transmission mechanism 34. A plurality of finger cylinders 314 are arranged on the corresponding surface of the crossbar 313 facing the grinding transmission mechanism 34 for clamping a plurality of valve cores 38 arranged at intervals in a single row on the valve core tray. The valve core tray and the valve cores 38 arranged thereon are conveyed by the valve core transmission device 2.

[0084] The grinding pressure applying mechanism 32 in this embodiment consists of a gantry frame 321, a displacement cylinder 322, a pressure plate 323, and a first needle cylinder 324. A displacement cylinder 322 is arranged on the gantry frame. The displacement cylinder 322 is connected with a pressure plate 323. The pressure plate 323 is located above the grinding transmission mechanism 34. A plurality of first needle cylinders 324 for applying grinding pressure to the valve cores 38 in one-to-one correspondence and arranged in a matrix are arranged on the corresponding surface of the pressure plate 323 facing the grinding transmission mechanism 34. A wear-resistant nylon block 325 is arranged at the top of the first needle cylinder 324 to prevent the contact surface between the valve core 38 and the valve seat 39 from being not tight.

[0085] The grinding drive 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, an intermediate gear 3406, a driving gear 3407, a motor (3408), a lifting cylinder 3410, bearings 3412, etc. Among them, a valve seat fixing plate 3402, a motor 3408 and a lifting cylinder 3410 are arranged on the platform frame 3401. There are two lifting cylinders 3410, which act on both sides of the valve core fixing plate 3403 respectively and are used to lift the valve core fixing plate 3403 above the valve seat fixing plate 3402. A guide rod 3404 for guiding the valve core fixing plate 3403 during the lifting movement is arranged on the valve seat fixing plate 3402. The lifting cylinder 3410 is fixedly connected to the valve core fixing plate 3403 through an angular connecting piece 3411, which is convenient for installation. Multiple grooves 3416 arranged in a matrix and used for placing the valve seat 39 are arranged on the valve seat fixing plate 3402. Multiple driven gear shafts 3405 arranged in a matrix and used for placing the valve core 38 are arranged on the valve core fixing plate 3403. The multiple driven gear shafts 3405 and the multiple grooves 3416 are in a one-to-one up-and-down structure and mesh and drive each other on the same horizontal plane. A driving gear 3407 is arranged on the output shaft of the motor 3408. An intermediate gear 3406 meshing and driving with one driven gear shaft 3405 is arranged on the valve core fixing plate 3403. The intermediate gear 3406 also meshes and drives with the driving gear 3407. The driven gear shaft 3405 rotates on the valve core fixing plate 3403 through a bearing 3412. That is, the driven gear shaft 3405 includes an integrally arranged driven gear and a rotating shaft. A rolling bearing 3412 is arranged between the driven gear shaft and the valve core fixing plate 3403, which is convenient for the relative rotation between the driven gear shaft 3405 and the valve core fixing plate 3403. A stepped hole for accommodating the bearing 3412 and the positioning sleeve 3413 is arranged on the valve core fixing plate 3403. The grooves 3416 on the valve seat fixing plate 3402 and the stepped holes on the valve core fixing plate 3403 are arranged in one-to-one correspondence. The driving gear is driven by the motor to rotate and is transmitted to the intermediate gear, and then the intermediate gear drives the multiple driven gear shafts arranged in a plane to rotate relative to the valve core fixing plate, so that the valve core placed on the driven gear shaft also rotates relative to the valve core fixing plate. Furthermore, a relative rotation is generated between the rotating valve core and the stationary valve seat below, so as to achieve the rotary contact grinding of the contact surface between the two. The grinding pressure applying mechanism 32 is coordinated to apply a vertically downward grinding pressure to the valve core 38, so as to promote the sufficient and effective rotary contact grinding of the contact surface between the two.

[0086] Further, in order to ensure the radial fixation and axial movement setting of the valve core 38 on the valve core fixing plate, and the stability of the valve seat 39 during the grinding process in cooperation with the valve core 38, etc., a positioning sleeve 3413 for radially clamping the square head of the valve core 38 is provided at the axial center of the driven gear shaft 3405 of the grinding transmission mechanism 34. That is, the outer wall of the positioning sleeve 3413 is tightly fitted with the driven gear shaft 3405, and the inner wall limits the radial rotation of the valve core 38 through a square structure, facilitating the driven gear shaft 3405 to drive the lower square head of the valve core 38 to grind with the valve seat 39. At the same time, through holes 3415 adapted to the valve seat 39 provided on the corresponding surface of the valve core fixing plate 3403 facing the valve seat fixing plate 3402 and on a plurality of grooves 3416 are provided, and the through holes 3415 and the corresponding positioning sleeves 3413 are on the same central axis. An inner shoulder hole platform for axially abutting the step of the valve core 38 is provided at the top of the through hole 3415. That is, after the valve core fixing plate 3403 descends toward the valve seat fixing plate 3402 under the action of the lifting cylinder 3410, the valve seat 39 provided on the groove 3416 of the valve seat fixing plate 3402 is sleeved through the through hole 3415 at the bottom of the valve core fixing plate 3403, and the bottom of the valve core fixing plate 3403 presses against the edge of the valve seat 39 protruding or flush with the top surface of the groove 3416, achieving the purpose of fixing the valve seat 39, facilitating pressing the valve seat 39 on the valve seat fixing plate 3402, making the valve seat 39 fixed in place, facilitating the grinding of the lower end of the valve core 38 with the valve seat 39, and the lower end of the valve core 38 passes through the inner hole of the inner shoulder hole platform of the through hole 3415 and contacts the valve seat 39 to form a contact surface between the two. That is, the inner shoulder hole platform does not limit the axial lifting and lowering of the lower end of the valve core 38, but will form an abutting effect on the step of the valve core 38 (such as Figure 1 shown), so that the valve core fixing plate 3403 also drives the valve core 38 to lift and lower during the vertical lifting and lowering process.

[0087] The valve seat loading and unloading mechanism 36 in this embodiment consists of a fixed seat 361, a third needle-type cylinder 362, a moving block 363, a fourth needle-type cylinder 364, a connecting rod 365, a clamping rod 366, and a power linear guide 367. The power linear guide 367 is a telescopic linear guide with its own power, adopting a double-track structure, fixed on the guide groove 3409 provided on the valve seat fixing plate 3402. A fixed seat 361 is provided on each of the two power linear guides 367. A moving block 363 with vertical lifting is connected to a single fixed seat 361 through a third needle-type cylinder 362. A pair of fourth needle-type cylinders 364 with relative movements are provided on a single moving block 363. A connecting rod 365 is provided on each fourth needle-type cylinder 364. A clamping rod 366 is provided between the connecting rods 365 provided on the two fourth needle-type cylinders 364 on the same side of the two moving blocks 363. Another clamping rod 366 is also provided between the connecting rods 365 provided on the two fourth needle-type cylinders 364 on the other same side of the corresponding two moving blocks 363. The two clamping rods 366 are used to clamp a plurality of valve seats 39 arranged at intervals in a single row on the valve seat tray. The valve seat tray and the valve seats 39 provided thereon are conveyed by the valve seat conveying device 1.

[0088] In another embodiment, the grinding device 3 further includes a transition storage table 33 that cooperates with the valve core loading and unloading mechanism 34 and is used for temporarily storing the valve core tray. The transition storage table 33 also cooperates with the valve core tray transfer mechanism 25 of the valve core conveying device 2, that is, the valve core tray transfer mechanism 25 is used to temporarily store the valve core tray 26 on the transition storage table 33, and then perform loading and unloading cooperation with the valve core loading and unloading mechanism 31 of the grinding device 3. Specifically, the valve core tray transfer mechanism 25 realizes the transfer of the valve core tray 26 loaded with the valve core 38 from the valve core tray conveying mechanism 24 to the transition storage table 33 for temporary storage through the vertical lifting of the lifting cylinder 131, the horizontal rotation of the rotary cylinder 133, and the clamping and releasing operations of the clamping jaw cylinder 135. After the valve core loading and unloading mechanism 31 of the grinding device 3 grabs the valve core 38, subsequent grinding processes are carried out. The empty valve core tray can be grabbed by the valve core tray transfer mechanism 25 from the transition storage table 33 and returned to the valve core tray conveying mechanism 24 to enter the next valve core 38 loading and conveying process. In addition, after the grinding device 3 transports the ground valve core 38 to the empty valve core tray on the transition storage table 33 again, the valve core tray transfer mechanism 25 can transfer the valve core tray 26 after grinding to the valve core tray conveying mechanism 24 and then offline. 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 operation of the grinding device 3 and the valve core conveying device 2.

[0089] In another embodiment, the grinding device 3 further includes a cantilever auxiliary platform 37 disposed on the platform frame 3401 and used for supporting the valve seat loading and unloading mechanism 36. That is, after the power linear guide 367 of the valve seat loading and unloading mechanism 36 extends out from the valve seat fixing plate 3402, it can be supported by the cantilever auxiliary platform 37 to make its movement effect more stable and reliable. A long hole groove 371 is formed on the cantilever auxiliary platform 37 and is adapted to the valve seat loading and unloading mechanism 36 and the valve seat tray. That is, the valve seat tray 16 and the valve seat 39 thereon conveyed by the valve seat tray lifting device 15 of the valve seat transmission device 1 can pass through the long hole groove 371 from bottom to top, and then the valve seat loading and unloading mechanism 36 can clamp and release the valve seat 39 and perform the loading and unloading of the valve seat 39 relative to the valve seat tray.

[0090] In another embodiment, the grinding device 3 further includes an abrasive adding mechanism 35 disposed on the cantilever auxiliary platform 37 and above the long hole groove 371. The abrasive adding mechanism is used to add grinding liquid to the valve seat and is composed of a second needle-shaped cylinder 351, a mounting seat 352, a nozzle 353, and a mounting frame 354. The mounting frame 354 is disposed on the cantilever auxiliary platform 37 and also serves as a positioning for the valve seat loading and unloading mechanism 36. That is, after the power linear guide 367 of the valve seat loading and unloading mechanism 36 extends out, the distal end is positioned by the mounting frame 354, so as to ensure that the two clamping rods 366 are exactly above the long hole groove 371 on the cantilever auxiliary platform 37 for accurate clamping and releasing of the valve seat 39. The second needle-shaped cylinder 351 acts on the nozzle 353 to lower a certain amount of grinding liquid to the valve seat through the action of the second needle-shaped cylinder 351. Both of them are disposed on the mounting frame 354 through the mounting seat 352, and the number of nozzles 353 is equivalent to the number of valve seats 39 loaded and unloaded by the valve seat loading and unloading mechanism. In addition, in order to make the grinding liquid flowing out of the nozzle 353 better enter the valve seat 39, a telescopic cylinder can be provided between the mounting seat 352 and the mounting frame 354 to enable the nozzle 353 to have a lifting function to cooperate with the grinding liquid to enter the valve seat.

[0091] Please refer to Figures 21 - 24, an automatic grinding method for a minimum quantity lubrication injection mechanism of the present invention. Firstly, the valve seat is conveyed to the grinding device 3 through the valve seat transmission device 1. The valve seat vibrating feeder 11 sorts and outputs the valve seats 39 first, then the valve seat placement mechanism 12 sequentially places the sorted valve seats 39 on the valve seat tray 16, and the valve seat tray conveyor mechanism 14 conveys the valve seat tray 16, and the valve seat tray transfer mechanism 14 conveys the valve seat tray 16 to the valve seat loading and unloading mechanism 36 of the grinding device 3, and the valve seat tray handling mechanism 15 also handles the valve seat tray 16. During this period, the controller with a touch screen display controls the start and stop of the valve seat vibrating feeder 11, the valve seat placement mechanism 12, the valve seat tray conveyor mechanism 14, the valve seat tray transfer mechanism 15, and the valve seat tray handling mechanism 13. That is, there is a first sensor independently installed or set on the valve seat placement mechanism 12, which is used to locate the position where the valve seat tray 16 on the valve seat tray conveyor mechanism 14 is initially loaded with the valve seat 39. There is a second sensor independently installed or set on the valve seat tray transfer mechanism 15 or the valve seat loading and unloading mechanism 36, which is used to locate the position where the valve seat tray 16 enters the valve seat loading and unloading mechanism 36. There is a third sensor independently installed or set on the valve seat tray handling mechanism 13, which is used to locate the position where the empty valve seat tray 16 is transported to the position where the initial valve seat 39 is loaded. And the controller respectively controls the first solenoid directional valve and the second solenoid directional valve of the rotary cylinder 121 and the finger cylinder 122 provided on the valve seat placement mechanism 12. And the controller respectively controls the third solenoid directional valve, the fourth solenoid directional valve, and the fifth solenoid directional valve of the lifting cylinder 131, the slewing cylinder 133, and the jaw cylinder 135 provided on the valve seat tray handling mechanism 13. And the controller controls the sixth solenoid directional valve of the lifting rodless cylinder 151 provided on the valve seat transfer mechanism 15. Secondly, the valve core is conveyed to the grinding device 3 through the valve core transmission device 2. The valve core vibrating feeder 21 sorts and outputs the valve cores 38 first, then the valve core placement mechanism 22 sequentially places the sorted valve cores 38 on the valve core tray 26, and the valve core tray conveyor mechanism 24 conveys the valve core tray 26 filled with the valve cores 38, and the valve core tray transfer mechanism 25 conveys the valve core tray 26 to the valve core loading and unloading mechanism 31 or the transition flat table 33, and the valve core tray handling mechanism 23 also handles the valve core tray 26. During this period, the controller controls the start and stop of the valve core vibrating feeder 21, the valve core placement mechanism 22, the valve core tray conveyor mechanism 24, the valve core tray transfer mechanism 25, and the valve core tray handling mechanism 23, and the controller controls each sensor to respectively locate the position where the valve core tray is initially loaded with the valve core, the position where the valve core tray enters the valve core loading and unloading mechanism, and the position where the empty valve core tray is transported to the position where the initial valve core is loaded.That is, it involves a fourth sensor independently installed or set on the valve core placement mechanism 22 for positioning the position where the valve seat tray 26 on the valve core tray transfer mechanism 24 is initially loaded with the valve core 38, a second sensor independently installed or set on the valve core tray transfer mechanism 25 for positioning the position where the valve core tray 26 enters the valve core loading and unloading mechanism 316 or the transition flat table 33, and a third sensor independently installed or set on the valve core tray handling mechanism 23 for positioning the position where the empty valve core tray 26 is transported to the position where the initial valve core 38 is loaded; and the controller respectively controls the seventh electric reversing valve and the eighth electric reversing valve of the rotary cylinder 121 and the finger cylinder 122 provided on the valve core placement mechanism 22; and the controller respectively controls the ninth electric reversing valve, the tenth electric reversing valve, and the eleventh electric reversing valve of the lifting cylinder 131, the slewing cylinder 133, and the jaw cylinder 135 provided on the valve core tray handling mechanism 23; and the controller respectively controls the twelfth electric reversing valve, the thirteenth electric reversing valve, and the fourteenth electric reversing valve of the lifting cylinder 131, the slewing cylinder 133, and the jaw cylinder 135 provided on the valve core tray transfer mechanism 25; The third is to grind the valve seat 39 and the valve core 38 through the grinding device 3. First, the valve seat loading and unloading mechanism 36 loads and unloads the valve seat 39 from the valve seat tray transfer mechanism 15 onto the valve seat fixing plate 3402 of the grinding transmission mechanism 34, and the grinding fluid adding mechanism 35 adds grinding fluid into the valve seat 39. Then, the valve core loading and unloading mechanism 31 loads and unloads the valve core 38 from the valve core tray transfer mechanism 25 or the transition storage table 33 onto the valve core fixing plate 3403 of the grinding transmission mechanism 34. Then, the lifting cylinder 3410 of the grinding transmission mechanism 34 lowers the valve core fixing plate 3403 and presses it against the valve seat 39 on the valve seat fixing plate 3402, and the grinding pressure applying mechanism 32 applies grinding pressure to the valve core 38, and the motor 3408 of the grinding transmission mechanism 34 drives the valve core 38 to rotate for grinding with the valve seat 39; and the controller controls the start and stop of the valve seat loading and unloading mechanism 31, the grinding transmission mechanism 32, the grinding pressure applying mechanism 33, the valve core loading and unloading mechanism 34, and the grinding fluid adding mechanism 35. That is, it involves a seventh sensor independently installed or set on the valve seat loading and unloading mechanism 36 or the grinding transmission mechanism 34 for positioning the position where the valve seat 39 is placed in the valve seat fixing plate 3402, and an eighth sensor independently installed or set on the valve core loading and unloading mechanism 31 or the grinding transmission mechanism 34 for positioning the position where the valve core 38 is placed in the valve core fixing plate 3403; and the controller respectively controls the fifteenth electric reversing valve, the sixteenth electric reversing valve, and the seventeenth electric reversing valve of the horizontal rodless cylinder 311, the vertical rodless cylinder 312, and the finger cylinder 314 provided on the valve core loading and unloading mechanism 31; and the controller respectively controls the eighteenth electric reversing valve and the nineteenth electric reversing valve of the displacement cylinder 322 and the first needle cylinder 324 provided on the grinding pressure applying mechanism 32; and the controller respectively controls the twentieth electric reversing valve of the motor 3408 and the lifting cylinder 3410 provided on the grinding transmission mechanism 34;And the controller respectively controls the twenty-second electric reversing valve and the twenty-third electric reversing valve of the power linear guide 367, the third needle cylinder 362, and the fourth needle cylinder 364 provided in the valve seat loading and unloading mechanism 36; and controls the twenty-first electric reversing valve of the second needle cylinder 351 provided in the abrasive adding mechanism 35; finally, outputs the valve seat 39 and the valve core 38 after grinding is completed. First, stop the motor 3408 of the grinding transmission mechanism 34, lift the displacement cylinder 322 of the grinding pressure applying mechanism 32 to raise the pressure plate 323, lift the jacking cylinder 3410 of the grinding transmission mechanism 34 to separate the valve seat fixing plate 3402 and the valve core fixing plate 3403, then the valve seat loading and unloading mechanism 36 loads and unloads the valve seat 39 from the valve seat fixing plate 3402 to the valve seat tray transfer mechanism 14, and the valve core loading and unloading mechanism 31 loads and unloads the valve core 38 from the valve core fixing plate 3403 to the valve core tray transfer mechanism 24, and then the valve seat tray conveying mechanism 14 conveys the valve seat tray 16 and the valve core tray conveying mechanism 24 conveys the valve core tray 26.;

[0092] During use, the vibrating feeders of the valve seat transfer device 1 and the valve core transfer device 2 respectively screen and sort and shape the valve seat 39 and the valve core 38 of the injection valve assembly to be ground, so as to slowly deliver them to the clamping stations of their respective placement mechanisms in sequence. After being clamped by the finger cylinders of the corresponding placement mechanisms to the valve assemblies (valve seats or valve cores), they are rotated 180° by the rotating cylinders thereon to reach one side of the transfer mechanism, and are placed on the corresponding trays. The trays are made of flexible bodies and are provided with a plurality of blind-hole-shaped placement holes for accommodating the valve assemblies (valve seats or valve cores), such as 6 - 10 arranged in a single row. The speed of the transfer mechanism is controlled to place each of the multiple valve assemblies into each placement hole on the tray one by one. Sensors can also be used for detection (pausing and starting the conveyor belt), so that when the tray reaches the designated position, multiple conveying sections of the transfer mechanism can stop or be started as needed. Then, the transfer mechanism transports the tray with the valve assemblies to the lifting mechanism or the transfer mechanism station, and they respectively convey the valve seats and valve cores of the valve assemblies to the grinding unit. The handling mechanism also clamps the empty tray back onto the transfer mechanism near the placement mechanism side, and then places new valve assemblies. Until the placement holes on the tray are filled with valve assemblies, continue to convey the valve assemblies to the grinding unit. The valve seat tray with the valve seat 39 is transported to the long hole groove 371 of the cantilever auxiliary table 37 of the grinding device 3 by the valve seat transfer device 1, and the grinding agent adding mechanism 35 drips grinding fluid into the valve seat 39. After the valve seat loading and unloading mechanism 36 clamps the valve seat 39, it is placed in the groove 3416 of the valve seat fixing plate 3402 of the grinding transmission mechanism 34. The transmission and clamping and placing operations of the valve seat 39 are repeated multiple times until the matrix grooves 3416 on the valve seat fixing plate 3402 are filled with valve seats. Also, the valve core tray with the valve core 38 is transported to the transition storage table 33 of the grinding device 3 by the valve core transfer device 2. After the valve core loading and unloading mechanism 31 clamps the valve core 38, it is placed in the positioning sleeve 3413 of the driven gear shaft 3405 of the valve core fixing plate 3403 of the grinding transmission mechanism 34. The transmission and clamping and placing operations of the valve core 38 are repeated multiple times until the positioning sleeves 3413 of the matrix-driven gear shafts 3405 on the valve core fixing plate 3403 are filled with valve cores 38. Then, the valve core fixing plate 3403 is lowered towards the valve seat fixing plate 3402 by the lifting cylinder 3410 of the grinding transmission mechanism 34, and the through hole 3415 at the bottom of the valve core fixing plate 3403 is sleeved on the valve seat 39, and the bottom of the valve core fixing plate 3403 presses against the edge of the valve seat 39. The valve core 38 on the valve core fixing plate 3403 contacts the valve seat 39 by its own weight. Then, the displacement cylinder 322 of the grinding pressure application mechanism 32 drives the first needle cylinder 324 on the pressure plate 323 to abut against the top of the valve core 38, and the first needle cylinder applies grinding pressure (such as about 1 kilogram of pressure for each cylinder), so that the contact surface between the valve core 38 and the valve seat 39 is stressed to meet the corresponding grinding requirements.Then, the motor 3408 of the grinding drive mechanism 34 is used to drive the rotation of the driving gear 3407, which is transmitted to the intermediate gear 3406. Then, the intermediate gear 3406 drives a plurality of driven gear shafts 3405 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 shaft 3405 also rotates relative to the valve core fixing plate 3405. Furthermore, a relative rotation is generated between the rotating valve core 38 and the stationary valve seat 39 below, so as to achieve rotary contact grinding of the contact surface between the two. Finally, after the grinding for a set time, the motor 3408 is stopped, the grinding pressure applied by the first needle-shaped cylinder 324 is removed, and the displacement cylinder 322 is used to lift the pressure plate 323 away from the top of the valve core 38. Then, the lifting cylinder 3410 is used to lift the valve core fixing plate 3403. The valve core 38 is successively taken away from the valve core fixing plate 3403 through the valve core loading and unloading mechanism 31 and transferred to the valve core tray on the transition storage table 33, and then output by the valve core transmission device 2. Also, the valve seat 39 is successively taken away from the valve seat fixing plate 3403 through the valve seat loading and unloading mechanism 36 and transferred to the valve seat tray at the long hole groove 371 of the cantilever auxiliary table 37, and then output by the valve seat transmission device 1, thereby completing the grinding process of the contact surface between the valve core and the valve seat of a batch of injection mechanism components. Finally, the above steps are repeated for the next batch of grinding processes.

[0093] With the above solution, the present conveying device and system realize the automatic processes of screening, sorting, feeding, transporting, loading and unloading, and grinding of the injection mechanism components (valve seat, valve core) to be ground, so that the pipeline conveying and batch grinding of the injection mechanism components can meet the requirements of automatic grinding processing, which helps to improve the efficiency and quality of the fully automatic grinding of the injection mechanism components. At the same time, by programming each cylinder, the valve assembly can be automatically controlled according to the program instructions during the transmission process, reducing the labor cost and time cost.

[0094] In addition, all the power elements listed in the present application adopt cylinder components because in factory production, cylinders are relatively easy to obtain, the air source is relatively clean for the production environment, and it is easy to realize automatic control of the cylinder actions. Those skilled in the art should understand that the cylinder as a power element is not the only structural form, and alternative solutions can be components such as hydraulic cylinders, electric push rods, and linear motors.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the present technical solution, and they should all be covered by the scope of the claims of the present invention.

Claims

1. An automatic grinding equipment for a minimum quantity lubrication injection mechanism, characterized in that, It includes a valve seat transmission device (1), a valve core transmission device (2) and a grinding device (3). The valve seat transmission device and the valve core transmission device are arranged in parallel on opposite sides with respect to the grinding device. The valve seat (39) and the valve core (38) are respectively conveyed to the grinding device by the valve seat transmission device and the valve core transmission device, and then the grinding device grinds the valve seat and the valve core. The valve seat transmission device consists of a valve seat vibrating feeder (11), a valve seat placing mechanism (12) and a valve seat tray conveying mechanism (14). The valve seat vibrating feeder is used for screening and sorting the valve seats. The valve seat placing mechanism is used to place the valve seats coming out of the valve seat vibrating feeder on the valve seat tray (16). The valve seat tray conveying mechanism is used to convey the valve seat tray. The valve core transmission device consists of a valve core vibrating feeder (21), a valve core placing mechanism (22) and a valve core tray conveying mechanism (24). The valve core vibrating feeder is used for screening and sorting the valve cores. The valve core placing mechanism is used to place the valve cores coming out of the valve core vibrating feeder on the valve core tray (26). The valve core tray conveying mechanism is used to convey the valve core tray. The grinding device consists of a valve core loading and unloading mechanism (31), a grinding pressure applying mechanism (32), a grinding transmission mechanism (34) and a valve seat loading and unloading mechanism (36). The valve core loading and unloading mechanism is used for loading and unloading the valve seat between the valve core transmission device and the grinding transmission mechanism. The valve seat loading and unloading mechanism is used for loading and unloading the valve seat between the valve seat transmission device and the grinding transmission mechanism. The grinding transmission mechanism is used to grind between the contact surfaces of the valve core and the valve seat. The grinding pressure applying mechanism is used to apply grinding pressure to the valve core. The valve core loading and unloading mechanism and the valve seat loading and unloading mechanism respectively perform side movement actions on opposite sides of the grinding transmission mechanism, and the grinding pressure applying mechanism performs a lifting action above the grinding transmission mechanism. It also includes a controller electrically connected to the valve seat vibrating feeder, the valve seat tray conveying mechanism, the valve core vibrating feeder and the valve core tray conveying mechanism. The controller is also electrically connected to a first sensor for positioning the initial loading of the valve seat on the valve seat tray, a second sensor for positioning the valve seat tray entering the valve seat loading and unloading mechanism, a fourth sensor for positioning the initial loading of the valve core on the valve core tray, and a fifth sensor for positioning the valve core tray entering the valve core loading and unloading mechanism. Both the valve seat tray conveying mechanism and the valve core tray conveying mechanism are composed of a straight section conveyor belt (141) and an arc section conveyor belt (142), forming a U shape or a ring shape. The grinding drive mechanism is composed of a platform frame (3401), a valve seat fixing plate (3402), a valve core fixing plate (3403), a driven gear shaft (3405), an intermediate gear (3406), a driving gear (3407), a motor (3408), and a lifting cylinder (3410). The platform frame is provided with a valve seat fixing plate, a motor, and a lifting cylinder. 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) arranged in a matrix for placing valve seats. The valve core fixing plate is provided with a plurality of driven gear shafts arranged in a matrix for placing valve cores. The plurality of driven gear shafts and the plurality of grooves are in a one-to-one up-and-down structure and mesh and drive each other on the same horizontal plane. The valve core fixing plate is provided with an intermediate gear that meshes and drives with one of the driven gear shafts. The output shaft of the motor is provided with a driving gear, and the intermediate gear also meshes and drives with the driving gear. The driven gear shaft rotates on the valve core fixing plate through a bearing (3412). The lifting cylinder is connected to the valve core fixing plate through a connecting member (3411), and the lifting cylinder acts on the valve core fixing plate and is used to lift and lower the valve core fixing plate above the valve seat fixing plate. A guide rod (3404) is provided between the valve seat fixing plate and the valve core fixing plate. 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) corresponding to the valve seats arranged on the corresponding surface facing the valve seat fixing plate and adapted to the valve seats. The through holes and the corresponding positioning sleeves are on the same central axis. An inner shoulder hole platform for axially abutting against the valve core step is provided at the top of the through hole. The controller is electrically connected to a seventh sensor for positioning the valve seat in the valve seat fixing plate and an eighth sensor for positioning the valve core in the valve core fixing plate. The controller is electrically connected to the motor and a twentieth electro-hydraulic directional valve for controlling the lifting cylinder. The grinding pressure applying mechanism is composed of a gantry frame (321), a displacement cylinder (322), a pressure plate (323), and a first needle cylinder (324). The gantry frame is provided with a displacement cylinder. The displacement cylinder is connected with a pressure plate. The pressure plate is located above the grinding drive mechanism. A plurality of first needle cylinders for applying grinding pressure to the valve cores in a one-to-one correspondence and arranged in a matrix are provided on the corresponding surface of the pressure plate facing the grinding drive mechanism. A wear-resistant nylon block (325) is arranged at the top of the first needle cylinder. The controller is electrically connected to an eighteenth electro-hydraulic directional valve and a nineteenth electro-hydraulic directional valve for respectively controlling the displacement cylinder and the first needle cylinder. The grinding device further includes a transition storage table (33) that cooperates with the valve core loading and unloading mechanism and is used for temporarily storing the valve core tray; the grinding device further includes a cantilever auxiliary table (37) provided on the platform frame and used for supporting the valve seat loading and unloading mechanism, and a long hole groove (371) that cooperates with the valve seat loading and unloading mechanism and is adapted to the valve seat tray is provided on the cantilever auxiliary table; the grinding device further includes a grinding agent adding mechanism (35) provided on the cantilever auxiliary table and located above the long hole groove. The grinding agent adding mechanism is composed of a second needle-shaped cylinder (351), a mounting seat (352), a nozzle (353), and a mounting frame (354). The mounting frame is provided on the cantilever auxiliary table and also serves as a positioning mechanism for the valve seat loading and unloading mechanism; the second needle-shaped cylinder acts on the nozzle, and both are provided on the mounting frame through the mounting seat; the number of nozzles is equivalent to the number of valve seats loaded and unloaded by the valve seat loading and unloading mechanism. The controller is electrically connected to a twenty-first electric reversing valve for controlling the second needle-shaped cylinder.

2. The automatic grinding equipment of the minimum quantity lubrication injection mechanism according to claim 1, characterized in that, Both the valve seat placement mechanism and the valve core placement mechanism are composed of a rotary cylinder (121) and a finger cylinder (122). The rotary cylinder is used to rotate the finger cylinder, and the finger cylinder is used to clamp and place the valve seat or the valve core. The controller is electrically connected to a first electric reversing valve and a second electric reversing valve for respectively controlling the rotary cylinder and the finger cylinder provided in the valve seat placement mechanism; the controller is electrically connected to a seventh electric reversing valve and an eighth electric reversing valve for respectively controlling the rotary cylinder and the finger cylinder provided in the valve core placement mechanism.

3. The micro-lubrication injection mechanism automatic grinding equipment according to claim 2, characterized in that, The valve seat transfer device further includes a valve seat tray handling mechanism (13) provided between two parallel straight-section conveyor belts of the valve seat tray conveying mechanism and close to the valve seat placement mechanism side. The valve core transfer device further includes a valve core tray handling mechanism (23) provided between two parallel straight-section conveyor belts of the valve core tray conveying mechanism and close to the valve core placement mechanism side. Both the valve seat tray handling mechanism and the valve core tray handling mechanism are composed of a lifting cylinder (131), a rotary cylinder (133), and a jaw cylinder (135). The rotary cylinder is provided on the lifting cylinder through a bottom plate (132), and the jaw cylinder is provided on the rotary cylinder through a bracket (134). The jaw cylinder is used to clamp and place the valve seat tray or the valve core tray. The controller is electrically connected to a third sensor for positioning an empty valve seat tray and moving it to the initial valve seat loading position, and a sixth sensor for positioning an empty valve core tray and moving it to the initial valve core loading position; the controller is electrically connected to a third electric reversing valve, a fourth electric reversing valve, and a fifth electric reversing valve for respectively controlling the lifting cylinder, the rotary cylinder, and the jaw cylinder provided in the valve seat tray handling mechanism; the controller is electrically connected to a ninth electric reversing valve, a tenth electric reversing valve, and an eleventh electric reversing valve for respectively controlling the lifting cylinder, the rotary cylinder, and the jaw cylinder provided in the valve core tray handling mechanism.

4. The micro-lubrication injection mechanism automatic grinding equipment according to claim 3, characterized in that, The valve seat transfer device further includes a valve seat tray transfer mechanism (15) for conveying valve seats to the grinding device. The valve seat tray transfer mechanism consists of a straight-section transfer belt (151), a lifting rodless cylinder (152), and a column (153). A lifting rodless cylinder acting on the valve seat tray rotating belt is arranged on the column. Two lifting rodless cylinders are provided. Fixed blocks (154) connected to the two lifting rodless cylinders are respectively arranged on both sides of the straight-section transfer belt. The valve core transfer device further includes a valve core tray transfer mechanism (25) for conveying valve cores to the grinding device, and the valve core tray transfer mechanism has the same structure as the valve core tray handling mechanism. The controller is electrically connected to the straight-section transfer belt and a sixth electric reversing valve for controlling the lifting rodless cylinder. The controller is electrically connected to a twelfth electric reversing valve, a thirteenth electric reversing valve, and a fourteenth electric reversing valve for respectively controlling the lifting cylinder, slewing cylinder, and gripper cylinder provided in the valve core tray transfer mechanism.

5. The micro-lubrication injection mechanism automatic grinding equipment according to claim 4, characterized in that The valve core loading and unloading mechanism consists of two horizontal rodless cylinders (311), two vertical rodless cylinders (312), a crossbar (313), and a plurality of finger cylinders (314). The two horizontal rodless cylinders are arranged on both sides of the grinding transmission mechanism. Each of the two horizontal rodless cylinders is provided with a vertical rodless cylinder. A crossbar is arranged between the two vertical rodless cylinders. The crossbar is located above the grinding transmission mechanism. A plurality of finger cylinders for clamping and placing a plurality of valve cores arranged at intervals in a single row are arranged on the corresponding surface of the crossbar facing the grinding transmission mechanism. The controller is electrically connected to a fifteenth electric reversing valve, a sixteenth electric reversing valve, and a seventeenth electric reversing valve for respectively controlling the horizontal rodless cylinder, the vertical rodless cylinder, and the finger cylinders.

6. The micro-lubrication injection mechanism automatic grinding equipment according to claim 5, characterized in that The valve seat loading and unloading mechanism consists of a fixed seat (361), a third needle-type cylinder (362), a moving block (363), a fourth needle-type cylinder (364), a connecting rod (365), a clamping rod (366), and a power linear guide (367). The power linear guide adopts a double-track structure and is fixed on the grinding transmission mechanism. A fixed seat is respectively arranged on each of the two power linear guides. A moving block with vertical lifting is connected to the single fixed seat through the third needle-type cylinder. A pair of fourth needle-type cylinders with relative movements are arranged on the single moving block. A connecting rod is arranged on each of the fourth needle-type cylinders. A clamping rod is arranged between the connecting rods arranged on the two fourth needle-type cylinders on the same side of the two moving blocks. Another clamping rod is arranged between the connecting rods arranged on the two fourth needle-type cylinders on the other same side of the corresponding two moving blocks. The two clamping rods are used for clamping and placing a plurality of valve seats arranged at intervals in a single row. The controller is electrically connected to the power linear guide and a twenty-second electric reversing valve and a twenty-third electric reversing valve for respectively controlling the third needle-type cylinder and the fourth needle-type cylinder.

7. An automatic grinding method for a minimum quantity lubrication injection mechanism, characterized in that, Based on the micro-lubrication injection mechanism automatic grinding equipment according to claim 6, the automatic grinding method includes: 1) Conveying valve seats to the grinding device through the valve seat transfer device; 1.1) First, the valve seat vibrating feeder sorts and outputs the valve seats. Then, the valve seat placing mechanism sequentially places the sorted valve seats on the valve seat tray. The valve seat tray conveying mechanism transports the valve seat tray, and the valve seat tray transfer mechanism conveys the valve seat tray to the valve seat loading and unloading mechanism. The valve seat tray handling mechanism also handles the valve seat tray. 1.2) The controller controls the start and stop of the valve seat vibrating feeder, the valve seat placing mechanism, the valve seat tray conveying mechanism, the valve seat tray transfer mechanism, and the valve seat tray handling mechanism. The controller also controls each sensor to respectively locate the position where the valve seat tray is initially loaded with valve seats, the position where the valve seat tray enters the valve seat loading and unloading mechanism, and the position where the empty valve seat tray is transported to the initial valve seat loading position. 1.3) The controller respectively controls the first electric reversing valve and the second electric reversing valve of the rotary cylinder and the finger cylinder provided in the valve seat placing mechanism. The controller respectively controls the third electric reversing valve, the fourth electric reversing valve, and the fifth electric reversing valve of the lifting cylinder, the slewing cylinder, and the jaw cylinder provided in the valve seat tray handling mechanism. The controller controls the sixth electric reversing valve of the lifting rodless cylinder provided in the valve seat transfer mechanism. 2) The valve core is conveyed to the grinding device through the valve core transmission device. 2.1) First, the valve core vibrating feeder sorts and outputs the valve cores. Then, the valve core placing mechanism sequentially places the sorted valve cores on the valve core tray. The valve core tray conveying mechanism transports the valve core tray filled with valve cores, and the valve core tray transfer mechanism conveys the valve core tray to the valve core loading and unloading mechanism. The valve core tray handling mechanism also handles the valve core tray. 2.2) The controller controls the start and stop of the valve core vibrating feeder, the valve core placing mechanism, the valve core tray conveying mechanism, the valve core tray transfer mechanism, and the valve core tray handling mechanism. The controller also controls each sensor to respectively locate the position where the valve core tray is initially loaded with valve cores, the position where the valve core tray enters the valve core loading and unloading mechanism, and the position where the empty valve core tray is transported to the initial valve core loading position. 2.3) The controller respectively controls the seventh electric reversing valve and the eighth electric reversing valve of the rotary cylinder and the finger cylinder provided in the valve core placing mechanism. The controller respectively controls the ninth electric reversing valve, the tenth electric reversing valve, and the eleventh electric reversing valve of the lifting cylinder, the slewing cylinder, and the jaw cylinder provided in the valve core tray handling mechanism. The controller respectively controls the twelfth electric reversing valve, the thirteenth electric reversing valve, and the fourteenth electric reversing valve of the lifting cylinder, the slewing cylinder, and the jaw cylinder provided in the valve core tray transfer mechanism. 3) The valve seat and the valve core are ground through the grinding device. 3.1) First, the valve seat loading and unloading mechanism loads and unloads the valve seat from the valve seat tray transfer mechanism onto the valve seat fixing plate of the grinding transmission mechanism. The grinding fluid adding mechanism adds grinding fluid into the valve seat. Then, the valve core loading and unloading mechanism loads and unloads the valve core from the valve core tray transfer mechanism or the transitional storage table onto the valve core fixing plate of the grinding transmission mechanism. The lifting cylinder of the grinding transmission mechanism lowers the valve core fixing plate and presses it against the valve seat on the valve seat fixing plate. The grinding pressure applying mechanism applies grinding pressure to the valve core, and the motor of the grinding transmission mechanism drives the valve core to rotate for grinding with the valve seat. 3.2) The controller controls the start and stop of the valve seat loading and unloading mechanism, the grinding drive mechanism, the grinding pressure application mechanism, the valve core loading and unloading mechanism, and the grinding agent adding mechanism, and controls the respective sensors of the controller to position the valve seat in the valve seat fixing plate and the valve core in the valve core fixing plate; 3.2) The controller respectively controls the fifteenth electric reversing valve, the sixteenth electric reversing valve, and the seventeenth electric reversing valve of the horizontal rodless cylinder, the vertical rodless cylinder, and the finger cylinder provided in the valve core loading and unloading mechanism; and the controller respectively controls the eighteenth electric reversing valve and the nineteenth electric reversing valve of the displacement cylinder and the first needle cylinder provided in the grinding pressure application mechanism; and the controller respectively controls the twentieth electric reversing valve of the motor and the lifting cylinder provided in the grinding drive mechanism; and the controller respectively controls the twenty-second electric reversing valve and the twenty-third electric reversing valve of the power linear guide and the third needle cylinder and the fourth needle cylinder provided in the valve seat loading and unloading mechanism; and the controller controls the twenty-first electric reversing valve of the second needle cylinder provided in the grinding agent adding mechanism; 4) Output the valve seat and valve core after grinding is completed; 4.1) Stop the motor of the grinding drive mechanism, lift the grinding pressure application mechanism, lift the lifting cylinder of the grinding drive mechanism, load and unload the valve seat from the valve seat fixing plate to the valve seat tray transfer mechanism by the valve seat loading and unloading mechanism, load and unload the valve core from the valve core fixing plate to the valve core tray transfer mechanism by the valve core loading and unloading mechanism, and then transfer the valve seat tray by the valve seat tray conveyor and transfer the valve core tray by the valve core tray conveyor.

Images