An intelligent gasket selection process for lift air gap of electronically controlled fuel injector

Abstract

The invention discloses an intelligent pad selection process for the lift air gap of an electronically controlled fuel injector, belongs to the technical field of fuel injectors, and comprises the following steps: S1, a plurality of workpiece pallets are stored in a loading station, the workpiece pallets are placed on a conveyor line at equal intervals during loading, and an orifice plate and an armature assembly are placed at a specified position of the workpiece pallet; S2, the workpiece pallet moves with the conveyor, passes under an oiling mechanism, and the oiling mechanism automatically oils a steel ball and delivers it to the orifice plate; S3, the workpiece pallet carries the workpiece and moves to a detection mechanism to complete measurement and pad selection operations; S4, after pad selection is completed, the workpiece pallet flows out with the conveyor line, unloading is completed manually, and the unloading station recycles the workpiece pallet; the invention can measure the lift and air gap of the electronically controlled fuel injector, and automatically select pads according to the measurement results, and the setting of the oiling mechanism realizes automatic oiling and unloading of steel balls, reduces the workload of operators, and improves work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of fuel injectors, and in particular to an intelligent gasket selection process for a lift air gap of an electronically controlled fuel injector. Background Art

[0002] The electronic fuel injector is a precision device composed of an orifice plate, a ball valve assembly, a lift gasket, an armature assembly and an air gap gasket. It plays a vital role in modern engines. In the composition process of the gasket injector, the lift and air gap of the electronic fuel injector are the key parameters affecting its performance. Depending on the specifications of the injector, the size of its lift and air gap is also different. Therefore, electronic fuel injectors of different specifications require different lift gaskets and air gap gaskets.

[0003] The selection of gaskets for electronically controlled fuel injectors includes multiple steps. First, the manual orifice plate, ball valve and armature assembly need to be placed on the tooling plate. Then, the tooling plate is sent to the detection mechanism via a conveyor line. The detection mechanism completes the measurement, and the computer automatically calculates the measurement structure. The signal is sent to the gasket selection station to select the appropriate lift gasket and air gap gasket. However, during the loading process, since the steel ball of the ball valve assembly is relatively small, the vibration of the equipment during transportation may cause the steel ball to fall. Therefore, it is necessary to smear butter on the steel ball and then stick it to the orifice plate. This undoubtedly increases the workload of the operator. In addition, the steel ball itself is relatively small, and the smearing and placement process is extremely inconvenient, which greatly affects the work efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent gasket selection process for the lift air gap of an electronically controlled fuel injector to solve the following technical problems: manually applying butter to steel balls is labor-intensive, and the steel balls themselves are small in size, making the application and placement processes extremely inconvenient, greatly affecting work efficiency.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] An intelligent gasket selection process for an electronically controlled fuel injector lift air gap comprises the following steps:

[0007] S1. Multiple workpiece pallets are stored in the loading station. When loading, the workpiece pallets are placed on the conveyor line at equal intervals, and the orifice plate and the armature assembly are placed at the designated position of the workpiece pallet;

[0008] S2, the workpiece pallet moves with the conveyor and passes under the oiling mechanism, which automatically oils the steel ball and sends it to the orifice plate;

[0009] S3, the workpiece pallet carries the workpiece and moves it to the detection mechanism to complete the measurement and pad selection operations;

[0010] S4. After the pad selection is completed, the workpiece pallet flows out along the conveyor line, the unloading is completed manually, and the unloading station recycles the workpiece pallet;

[0011] In step S2, the oiling mechanism automatically applies oil to the steel ball and delivers it to the orifice plate, which specifically includes the following steps:

[0012] S21, pre-load an appropriate amount of steel balls into the feeding hopper of the feeding assembly, and put butter in the oiling bowl;

[0013] S22, when the workpiece tray moves to the bottom of the butter cylinder, the conveyor line stops moving, and the oiling bowl is driven to rotate by an external driving source so that the bowl mouth gradually faces the steel ball, and a steel ball automatically enters the oiling bowl, and the steel ball can be oiled;

[0014] S23. The oiling bowl continues to rotate, and when the mouth of the bowl faces downward, the steel ball in the bowl automatically falls onto the orifice plate.

[0015] As a further solution of the present invention: the measuring and pad selection operation in step S3 includes the following steps:

[0016] S31, after the workpiece is moved into the detection mechanism, the stopping mechanism stops the workpiece pallet, and then the lifting and positioning mechanism lifts and positions the workpiece pallet;

[0017] S32, the robot grabs the lift standard gasket from the placement station and places it on the orifice plate, the automatic positioning mechanism on the measuring station holds and positions the outer circle of the lift standard gasket, then the robot places the armature assembly on the lift standard gasket, and finally the robot places the air gap standard gasket on the placement station above the armature assembly;

[0018] S33, the lifting slide of the measuring station drives the measuring mechanism to descend to the measuring position, the probe contacts the upper surface of the armature assembly and the clamping mechanism clamps the armature assembly. After stabilization, the sensor takes the value for the first time, the magnet lifting mechanism lifts the magnet, and the electromagnet pulls up the armature assembly to make the lower end surface of the hydraulic mechanism fit. After stabilization, the sensor takes the value for the second time, and the floating mechanism provides buffering for the armature assembly.

[0019] S34, after the inspection is completed, the measuring mechanism is reset, and after the robot returns each component to its original position in the reverse order, the lifting and positioning mechanism drives the workpiece pallet to reset, the stop mechanism opens, and the workpiece to be measured flows into the pad selection station together with the workpiece pallet. The SPC computer system automatically outputs the measurement results and sends the pad selection information to the pad selection station;

[0020] S35. After the gasket selection station receives the gasket selection information, the lifting gasket sorting mechanism rotates according to the gasket selection information, rotates the corresponding gasket to the pushing position, and the lifting gasket is automatically pushed onto the workpiece pallet. Similarly, the air gap gasket sorting mechanism automatically pushes out the air gap gasket.

[0021] As a further solution of the present invention: the oiling mechanism includes two first vertical plates, two second vertical plates and two third vertical plates installed on the conveyor line, a feeding assembly is fixed between the two first vertical plates, a butter cylinder is fixed between the two second vertical plates, a rotating shaft is rotatably installed between the two second vertical plates, a hemispherical oiling bowl is fixed between the two rotating shafts, the rotating shaft is driven to rotate by an external driving source, a sealing cylinder is fixed between the two third vertical plates, one end of the sealing cylinder is connected to an air outlet pipe, one end of the air outlet pipe is connected to the top of the butter cylinder, two guide rods are movably arranged at the top of the butter cylinder, a piston plate is commonly fixed to the bottom of the two guide rods, a cross valve is arranged at the bottom of the butter cylinder, and a booster assembly is arranged between the two rotating shafts and the sealing cylinder for gradually increasing the air pressure in the butter cylinder.

[0022] As a further solution of the present invention: the material discharge assembly is composed of a material discharge hopper and a V-shaped material discharge pipe, and one end of the material discharge pipe is fixed to the bottom of the material discharge hopper.

[0023] As a further solution of the present invention: the booster assembly includes two turntables, and the two turntables are respectively fixed on two rotating shafts, the turntables are provided with a fan-shaped opening, the sealing cylinder is connected with a first spring, one end of the first spring is connected to a piston block, one side of the piston block is connected to a connecting rod, one end of the connecting rod is connected to a driven rod, one side of the driven rod is fixed with two round-headed rods, the two round-headed rods respectively correspond to the positions of the two turntables, the sealing cylinder is connected to an air inlet pipe, and both the air inlet pipe and the air outlet pipe are equipped with one-way valves.

[0024] As a further solution of the present invention: the round head rod is composed of a cross bar and a semicircular block, one end of the cross bar is fixedly connected to the driven rod, and the other end is fixedly connected to the semicircular block.

[0025] As a further solution of the present invention: a material blocking mechanism is arranged between the butter cylinder and the oil bowl bracket, and the material blocking mechanism includes a first L-shaped rod fixed on the butter cylinder and a second L-shaped rod fixed on the driven rod, a hollow plate is fixed to one end of the first L-shaped rod, a second spring is connected to the hollow plate, one end of the second spring is connected to a baffle, a material discharge hole is opened on the baffle, and a U-shaped limiting plate is fixed to one end of the second L-shaped rod.

[0026] Beneficial effects of the present invention:

[0027] (1) The present invention realizes the measurement of the lift and air gap of the electronically controlled fuel injector by setting a loading station, a conveying line, a detection mechanism, a unloading station, a measuring station and a placing station, and automatically selects the pad according to the measurement results. The setting of the oiling mechanism realizes the automatic oiling and unloading of the steel ball, thereby reducing the workload of the operator and improving the work efficiency;

[0028] (2) The present invention provides a feeding assembly, an oiling bowl, a butter cylinder, a sealing cylinder and a pressurizing assembly. A large number of steel balls can be placed in the feeding assembly. The weight of the steel balls can be used to automatically feed the butter. The steel balls on one side are always in contact with the oiling bowl. When the oiling bowl rotates, the steel balls automatically enter the oiling bowl. The rotation of the oiling bowl cooperates with the pressurizing assembly and the sealing cylinder to automatically achieve quantitative feeding of butter. Every time the oiling bowl rotates, a certain amount of butter enters the oiling bowl, thereby ensuring the oiling effect.

[0029] (3) The present invention provides a material blocking mechanism. When the oiling bowl is in a horizontal state, the material discharge hole coincides with the bottom of the butter tube. When the oiling bowl rotates, the baffle blocks the bottom of the butter tube to prevent butter from dripping to the outside, thereby reducing butter waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] Figure 1 It is a front view of the present invention as a whole;

[0032] Figure 2 is a top view of the present invention as a whole;

[0033] Figure 3 It is a top view of the feeding station, conveying line and oiling mechanism of the present invention;

[0034] Figure 4 It is a top view of the blanking station and the measuring station of the present invention;

[0035] Figure 5 It is a three-dimensional structural schematic diagram of the detection mechanism of the present invention;

[0036] Figure 6 yes Figure 5 The enlarged view of point A in the middle;

[0037] Figure 7 It is a three-dimensional structural schematic diagram of the oiling mechanism of the present invention;

[0038] Figure 8 It is a three-dimensional structural schematic diagram of the butter cylinder and the sealing cylinder of the present invention;

[0039] Fig. 9 It is a structural schematic diagram of the oiling bowl of the present invention;

[0040] Fig.10 It is a schematic diagram of the internal structure of the butter tube of the present invention;

[0041] Fig.11 It is a schematic diagram of the structure of the oiling bowl and the steel ball during the rotation process of the present invention;

[0042] Fig.12 It is a schematic diagram of the internal structure of the sealing cylinder of the present invention;

[0043] Fig.13 It is a structural schematic diagram of the material blocking mechanism of the present invention;

[0044] Fig.14 It is a schematic diagram of the internal structure of the hollow plate of the present invention;

[0045] Fig.15 It is a structural schematic diagram of the measuring mechanism of the present invention.

[0046] In the figure: 1, loading station; 2, conveyor line; 3, oiling mechanism; 301, first vertical plate; 302, unloading assembly; 303, second vertical plate; 304, butter cylinder; 305, third vertical plate; 306, sealing cylinder; 307, rotating shaft; 308, rotating disk; 309, first L-shaped rod; 310, oiling bowl; 311, first spring; 312, piston block; 313, connecting rod; 314, driven rod; 315, Round head rod; 316, air inlet pipe; 317, air outlet pipe; 318, guide rod; 319, piston plate; 320, cross valve; 321, second spring; 322, hollow plate; 323, baffle; 324, unloading hole; 325, limit plate; 326, second L-shaped rod; 4, detection mechanism; 5, unloading station; 6, measuring station; 7, placement station; 8, lift gasket sorting mechanism; 9, air gap gasket sorting mechanism.

[0047] The drawings are only used for illustrative purposes and are not to be construed as limitations of the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced in size, and do not represent the size and shape of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] See also Figures 1 to 15 As shown, the present invention is an intelligent gasket selection process for the lift air gap of an electronically controlled fuel injector, comprising the following steps:

[0050] S1. Multiple workpiece pallets are stored in the loading station 1. When loading, the workpiece pallets are placed on the conveyor line 2 at equal intervals, and the orifice plate and the armature assembly are placed at the designated position of the workpiece pallet;

[0051] S2, the workpiece pallet moves with the conveyor and passes under the oiling mechanism, and the oiling mechanism 3 automatically oils the steel ball and sends it to the orifice plate;

[0052] S3, the workpiece tray carries the workpiece and moves it to the detection mechanism 4 to complete the measurement and pad selection operation;

[0053] S4, after the pad selection is completed, the workpiece pallet flows out along the conveyor line 2, the unloading is completed manually, and the unloading station 5 recycles the workpiece pallet;

[0054] In step S2, the oiling mechanism 3 automatically applies oil to the steel ball and delivers it to the orifice plate, which specifically includes the following steps:

[0055] S21, pre-load an appropriate amount of steel balls into the material hopper of the material discharging assembly 302, and fill the oiling bowl 310 with butter;

[0056] S22, when the workpiece tray moves to the bottom of the butter cylinder 304, the conveyor line 2 stops moving, and the oiling bowl 310 is driven to rotate by an external driving source so that the bowl mouth gradually faces the steel ball, and a steel ball automatically enters the oiling bowl 310, and the steel ball can be oiled;

[0057] S23, the oiling bowl 310 continues to rotate, and when the bowl mouth faces downward, the steel ball in the bowl automatically falls onto the orifice plate.

[0058] See also Figures 1 to 15 As shown, the measurement and pad selection operation in step S3 includes the following steps:

[0059] S31, after the workpiece moves into the detection mechanism 4, the stopping mechanism stops the workpiece pallet, and then the lifting and positioning mechanism lifts and positions the workpiece pallet;

[0060] S32, the robot grabs the lift standard gasket from the placement station 7 and places it on the orifice plate, the automatic positioning mechanism on the measuring station 6 holds and positions the outer circle of the lift standard gasket, then the robot places the armature assembly on the lift standard gasket, and finally the robot places the air gap standard gasket on the placement station 7 on top of the armature assembly;

[0061] S33, the lifting slide of the measuring station 6 drives the measuring mechanism to descend to the measuring position, the probe contacts the upper surface of the armature assembly and the clamping mechanism clamps the armature assembly. After stabilization, the sensor takes the value for the first time, the magnet lifting mechanism lifts the magnet, and the electromagnet pulls up the armature assembly to make the lower end surface of the hydraulic mechanism fit. After stabilization, the sensor takes the value for the second time, and the floating mechanism provides buffering for the armature assembly.

[0062] S34, after the inspection is completed, the measuring mechanism is reset, and after the robot returns each component to its original position in the reverse order, the lifting and positioning mechanism drives the workpiece pallet to reset, the stop mechanism opens, and the workpiece to be measured flows into the pad selection station together with the workpiece pallet. The SPC computer system automatically outputs the measurement results and sends the pad selection information to the pad selection station;

[0063] S35. After the pad selection station receives the pad selection information, the lifting pad sorting mechanism 8 rotates according to the pad selection information, rotates the corresponding pad to the pushing position, and the lifting pad is automatically pushed onto the workpiece pallet. Similarly, the air gap pad sorting mechanism 9 automatically pushes out the air gap pad.

[0064] See also Figure 1 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11The oiling mechanism 3 includes two first vertical plates 301, two second vertical plates 303 and two third vertical plates 305 installed on the conveyor line 2. A material unloading assembly 302 is fixed between the two first vertical plates 301. A butter cylinder 304 is fixed between the two second vertical plates 303. A rotating shaft 307 is rotatably installed between the two second vertical plates 303. A hemispherical oiling bowl 310 is fixed between the two rotating shafts 307. The rotating shaft 307 is driven to rotate by an external driving source. A sealing cylinder 306 is fixed between the two third vertical plates 305. One end of the sealing cylinder 306 is connected to an air outlet. The top of the butter cylinder 304 is movably provided with two guide rods 318, and the bottom of the two guide rods 318 is commonly fixed with a piston plate 319. The bottom of the butter cylinder 304 is provided with a cross valve 320. A booster assembly is provided between the two rotating shafts 307 and the sealing cylinder 306 to gradually increase the air pressure in the butter cylinder 304. The feeding assembly 302 is composed of a feeding hopper and a V-shaped feeding pipe, and one end of the feeding pipe is fixed to the bottom of the feeding hopper; the feeding hopper of the feeding assembly 302 is pre-loaded with The steel balls will be arranged in the feeding tube in sequence. In the initial state, the mouth of the oiling bowl 310 is facing upward and in a horizontal state, and a certain amount of butter is contained in the bowl. The steel balls will not fall under the obstruction of the oiling bowl 310. When the workpiece tray moves to the bottom of the butter cylinder 304, the conveyor line 2 stops moving. At this time, the external driving source is used to drive the rotating shaft 307 to rotate, driving the oiling bowl 310 to rotate synchronously, so that the mouth of the bowl gradually faces the steel balls. When the mouth of the bowl is tilted to a certain angle, one steel ball receives the pressure of the other steel balls and automatically enters the oiling bowl 310, and butter can be attached to the steel balls. The ball is always under the pressure of the other steel balls during this period of time, and the butter also has a lubricating effect, causing the oiling bowl 310 to rotate, while the steel balls in the bowl are squeezed and will not rotate with the oiling bowl 310 or will only move slightly, so that the butter is gradually spread on the entire steel ball during the rotation of the oiling bowl 310. When the mouth of the oiling bowl 310 faces downward, the steel ball in the bowl will be separated from the other steel balls. At this time, the steel ball in the bowl is no longer under pressure and automatically falls onto the orifice plate. The setting of the cross valve 320 ensures that the butter will be discharged from the butter cylinder 304 only when it is under pressure, thereby avoiding excessive discharge.

[0065] See also Figure 7 , Figure 8 , Fig. 9 and Fig.10The booster assembly includes two rotating disks 308, and the two rotating disks 308 are respectively fixed on two rotating shafts 307. A fan-shaped opening is opened on the rotating disk 308. A first spring 311 is connected to the sealing cylinder 306. One end of the first spring 311 is connected to a piston block 312. One side of the piston block 312 is connected to a connecting rod 313. One end of the connecting rod 313 is connected to a driven rod 314. Two round-headed rods 315 are fixed to one side of the driven rod 314. The two round-headed rods 315 correspond to the positions of the two rotating disks 308 respectively. An air inlet pipe 316 is connected to the sealing cylinder 306. Check valves are installed on the air inlet pipe 316 and the air outlet pipe 317. The round-headed rod 315 consists of a cross bar and a semicircular block. One end of the cross bar is fixedly connected to the driven rod 314, and the other end is fixedly connected to the semicircular block. In the initial state, the round rod 315 is fixedly connected to the driven rod 314. One end of the head rod 315 is located in the fan-shaped opening of the turntable 308. When the rotating shaft 307 rotates, it drives the turntable 308 to rotate. The turntable 308 will gradually push the round head rod 315 to move toward one side of the sealing cylinder 306, so that the driven rod 314, the connecting rod 313 and the piston block 312 move, squeezing the air inside the sealing cylinder 306. The air enters the butter cylinder 304 through the air outlet pipe 317, causing the piston plate 319 to drop slightly, thereby squeezing out the butter in the butter cylinder 304. After the rotating shaft 307 rotates one circle, the oiling bowl 310 and the turntable 308 are reset, and one end of the round head rod 315 is again in the fan-shaped opening. Under the action of the first spring 311, the piston block 312 is reset. Under the action of the negative pressure, the outside air enters the sealing cylinder 306 through the air inlet pipe 316, which is convenient for the next oiling work.

[0066] See also Figure 8 , Fig.12 , Fig.13 and Fig.14A material blocking mechanism is provided between the butter cylinder 304 and the oil bowl 310 bracket, and the material blocking mechanism includes a first L-shaped rod 309 fixed to the butter cylinder 304 and a second L-shaped rod 326 fixed to the driven rod 314, a hollow plate 322 is fixed to one end of the first L-shaped rod 309, a second spring 321 is connected to the hollow plate 322, a baffle 323 is connected to one end of the second spring 321, a material discharge hole 324 is provided on the baffle 323, and a U-shaped limiting plate 325 is fixed to one end of the second L-shaped rod 326; in order to prevent butter from dripping to the outside, in the initial state, the second spring 32 1 is in a compressed state, and the baffle plate 323 remains in a fixed position under the action of the limiting plate 325. When the turntable 308 rotates, the driven rod 314 drives the limiting plate 325 to move through the second L-shaped rod 326. At this time, under the action of the second spring 321, the baffle plate 323 blocks the bottom of the butter tube 304 to prevent the butter from dripping to the outside. When the round head rod 315 is reset, it drives the limiting plate 325 to reset, and pushes the baffle plate 323 into the hollow plate 322 again. The discharge hole 324 on the baffle plate 323 is aligned with the discharge port of the butter tube 304. At this time, the butter will drip into the oiling bowl 310.

[0067] The working principle of the present invention is as follows: a proper amount of steel balls are pre-loaded into the unloading hopper of the unloading assembly 302, and the steel balls are arranged in sequence in the unloading tube. In the initial state, the mouth of the oiling bowl 310 is facing upward and in a horizontal state, and a certain amount of butter is contained in the bowl. The steel balls will not fall under the obstruction of the oiling bowl 310. When the workpiece tray moves to the butter cylinder 304 and is sent down, the conveyor line 2 stops moving. At this time, the external driving source is used to drive the rotating shaft 307 to rotate, driving the oiling bowl 310 to rotate synchronously, so that the mouth of the bowl gradually faces the steel balls. When the mouth of the bowl is tilted to a certain angle, a steel ball automatically enters the oiling bowl 310 due to the pressure of the other steel balls (such as Fig.11 As shown in part a of the figure, butter can be attached to the steel ball. The steel ball is always under the pressure of the other steel balls during this period of time. The butter also has a lubricating effect, which will cause the oiling bowl 310 to rotate while the steel ball in the bowl will not rotate with the oiling bowl 310 due to being squeezed or will only move slightly, so that the butter is gradually spread on the entire steel ball during the rotation of the oiling bowl 310 (as shown in part a of the figure). Fig.11 As shown in part b), when the mouth of the oiling bowl 310 faces downward, the steel ball in the bowl will be separated from the other steel balls. At this time, the steel ball in the bowl is no longer under pressure and automatically falls onto the orifice plate;

[0068] In the initial state, one end of the round head rod 315 is located in the fan-shaped opening of the rotating disk 308. When the rotating shaft 307 rotates, it drives the rotating disk 308 to rotate, and the rotating disk 308 will gradually push the round head rod 315 to move toward one side of the sealing cylinder 306, so that the driven rod 314, the connecting rod 313 and the piston block 312 move, squeeze the air inside the sealing cylinder 306, and the air enters the butter cylinder 304 through the air outlet pipe 317, so that the piston plate 319 drops slightly, thereby squeezing out the butter in the butter cylinder 304. After the rotating shaft 307 rotates one circle, the oiling bowl 310 and the rotating disk 308 are reset, and one end of the round head rod 315 is again in the fan-shaped opening. Under the action of the first spring 311, the piston block 312 is reset. Under the action of the negative pressure, the external air enters the sealing cylinder 306 through the air inlet pipe 316, which is convenient for the next oiling work.

[0069] Initially, the second spring 321 is in a compressed state, and the position of the baffle plate 323 remains unchanged under the action of the limit plate 325. When the turntable 308 rotates, the driven rod 314 drives the limit plate 325 to move through the second L-shaped rod 326. At this time, under the action of the second spring 321, the baffle plate 323 blocks the bottom of the butter tube 304 to prevent the butter from dripping to the outside. When the oiling bowl 310, the turntable 308 and the round head rod 315 are reset, the limit plate 325 is driven to reset, and the baffle plate 323 is pushed into the hollow plate 322 again. The discharge hole 324 on the baffle plate 323 is aligned with the discharge port of the butter tube 304. Only then will the butter drip into the oiling bowl 310. Repeat the above operation to perform continuous oiling operation.

[0070] After the oiling is completed, the conveyor line 2 is started, and the workpiece pallet carrying the workpiece is moved to the detection mechanism 4 to complete the measurement and pad selection operations. After the pad selection is completed, the workpiece pallet flows out with the conveyor line 2, the unloading is completed manually, and the unloading station 5 recycles the workpiece pallet.

[0071] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An intelligent gasket selection process for the lift air gap of an electronically controlled fuel injector, characterized in that: The following steps are involved: S1, a plurality of workpiece pallets are stored in a loading station (1), and when loading, the workpiece pallets are placed on a conveyor line (2) at equal intervals, and a metering orifice plate and an armature assembly are placed at a designated position on the workpiece pallet; S2, the workpiece tray moves with the conveyor and passes under the oiling mechanism, and the oiling mechanism (3) automatically oils the steel ball and sends it to the orifice plate; S3, the workpiece pallet carries the workpiece and moves it to the detection mechanism (4) to complete the measurement and pad selection operations; S4, after the pad selection is completed, the workpiece pallet flows out along the conveyor line (2), the material is unloaded manually, and the unloading station (5) recovers the workpiece pallet; The oiling mechanism (3) in step S2 automatically applies oil to the steel ball and delivers it to the orifice plate specifically comprises the following steps: S21, pre-loading a proper amount of steel balls into the material discharging hopper of the material discharging assembly (302), and placing butter in the oiling bowl (310); S22, when the workpiece tray moves to below the oil cylinder (304), the conveyor line (2) stops moving, and the oiling bowl (310) is driven to rotate by an external driving source so that the bowl mouth gradually faces the steel ball, and a steel ball automatically enters the oiling bowl (310), and the steel ball can be oiled; S23, the oiling bowl (310) continues to rotate, and when the bowl mouth faces downward, the steel ball in the bowl automatically falls onto the orifice plate; the oiling bowl (310) is reset, and external air enters the sealing cylinder (306) connected to the butter cylinder (304), which facilitates the next oiling work.

2. The intelligent gasket selection process for the lift air gap of an electronically controlled fuel injector according to claim 1 is characterized in that: The oiling mechanism (3) comprises two first vertical plates (301), two second vertical plates (303) and two third vertical plates (305) installed on the conveyor line (2); a material discharge assembly (302) is fixed between the two first vertical plates (301); a butter cylinder (304) is fixed between the two second vertical plates (303); a rotating shaft (307) is rotatably installed between the two second vertical plates (303); a hemispherical oiling bowl (310) is fixed between the two rotating shafts (307); the rotating shaft (307) is driven to rotate by an external driving source; the two third vertical plates (305) are connected to the conveyor line (2); 05), one end of the sealing cylinder (306) is connected to an air outlet pipe (317), one end of the air outlet pipe (317) is communicated with the top of the butter cylinder (304), two guide rods (318) are movably provided at the top of the butter cylinder (304), a piston plate (319) is commonly fixed at the bottom of the two guide rods (318), a cross valve (320) is provided at the bottom of the butter cylinder (304), and a booster assembly is provided between the two rotating shafts (307) and the sealing cylinder (306) for gradually increasing the air pressure in the butter cylinder (304).

3. The intelligent gasket selection process for the lift air gap of an electronically controlled fuel injector according to claim 2 is characterized in that: The material discharge assembly (302) is composed of a material discharge hopper and a V-shaped material discharge pipe, one end of which is fixed to the bottom of the material discharge hopper.

4. The intelligent gasket selection process for the lift air gap of an electronically controlled fuel injector according to claim 2 is characterized in that: The booster assembly comprises two rotating disks (308), and the two rotating disks (308) are respectively fixed on two rotating shafts (307). A fan-shaped opening is provided on the rotating disk (308). A first spring (311) is connected inside the sealing cylinder (306). One end of the first spring (311) is connected to a piston block (312). One side of the piston block (312) is connected to a connecting rod (313). One end of the connecting rod (313) is connected to a driven rod (314). Two round-headed rods (315) are fixed to one side of the driven rod (314). The two round-headed rods (315) respectively correspond to the positions of the two rotating disks (308). An air inlet pipe (316) is connected to the sealing cylinder (306). Both the air inlet pipe (316) and the air outlet pipe (317) are equipped with one-way valves.

5. The intelligent gasket selection process for the lift air gap of an electronically controlled fuel injector according to claim 4 is characterized in that: The round-head rod (315) is composed of a crossbar and a semicircular block; one end of the crossbar is fixedly connected to the driven rod (314), and the other end is fixedly connected to the semicircular block.

6. The intelligent gasket selection process for the lift air gap of an electronically controlled fuel injector according to claim 2 is characterized in that: A material blocking mechanism is provided between the butter cylinder (304) and the oiling bowl (310) bracket, the material blocking mechanism comprising a first L-shaped rod (309) fixed on the butter cylinder (304) and a second L-shaped rod (326) fixed on the driven rod (314); a hollow plate (322) is fixed to one end of the first L-shaped rod (309); a second spring (321) is connected inside the hollow plate (322); a baffle (323) is connected to one end of the second spring (321); a material discharge hole (324) is provided on the baffle (323); and a U-shaped limiting plate (325) is fixed to one end of the second L-shaped rod (326).

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