System and method for measuring inner diameter of high-pressure fuel injector seat

Abstract

The invention relates to the technical field of high-pressure fuel injector seat inspection, in particular to a high-pressure fuel injector seat inner diameter measuring system which comprises an input and output unit, a control unit, a clamping unit and a measuring unit. And the input / output unit is connected to the control unit as a man-machine interface. The control unit is in control connection with the clamping unit and the testing unit and controls the clamping unit and the testing unit to act cooperatively. Under the control of the control unit, the clamping unit grabs the high-pressure fuel injector seat to be measured from the feeding position and transfers the high-pressure fuel injector seat to the measuring position near the measuring unit, and the high-pressure fuel injector seat is transferred to the discharging position again after measurement is completed. Under the control of the control unit, the measuring unit measures the inner diameters of multiple positions of the high-pressure oil injection seat and feeds back measured data to the control unit. The invention also comprises a method. According to the invention, automatic inspection is realized, labor cost is saved, leak detection is reduced, inspection quality is improved, error types can be collected, and reasons for producing unqualified products can be found out subsequently.

Description

Technical Field

[0001] The present invention relates to the technical field of high-pressure injector seat inspection, and in particular to an inner diameter measurement system and a measurement method for a high-pressure injector seat. Background Art

[0003] In the inspection of injector seat parts in a high-pressure oil rail, the inspection of the inner diameter dimension is of utmost importance. At present, although there is a pneumatic measuring instrument for inspection, its inspection efficiency is low, the probability of manual missed inspection is high, and the labor cost is increased. The existing pneumatic measuring instrument requires manual insertion of the measuring head of the measuring instrument into the product, and the depth of insertion cannot be accurately controlled, failing to meet the standardized inspection requirements and resulting in data distortion. Summary of the Invention

[0004] The purpose of the present invention is to provide an inner diameter measurement system and a measurement method for a high-pressure injector seat, mainly to solve the problems existing in the above-mentioned prior art. It can perform automated inspection, which is beneficial to improving production efficiency and product quality, and at the same time reducing the production labor cost.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is to provide an inner diameter measurement system for a high-pressure injector seat, characterized in that it includes an input / output unit, a control unit, a clamping unit, and a measurement unit; the input / output unit is connected to the control unit as a human-machine interface; the control unit is controllably connected to the clamping unit and the testing unit to control the coordinated operation of the clamping unit and the testing unit; under the control of the control unit, the clamping unit grabs and transfers the high-pressure injector seat to be measured from the feeding place to the measurement place near the measurement unit, and transfers the high-pressure injector seat to the discharging place again after the measurement is completed; under the control of the control unit, the measurement unit measures the inner diameters of multiple places of the high-pressure injector seat and feeds back the measurement data to the control unit.

[0006] Further, the input / output unit includes a central control display, an alarm lamp, and a start switch; the central control display and the alarm lamp are connected to the control unit as output devices; the central control display shows detailed operation information and alarm information; the alarm lamp prompts brief operation information and alarm information; the start switch is connected to the control unit as an input device for notifying the control unit to start the measurement.

[0007] Further, the clamping unit includes a support module, a loading module, an unloading module, and a measuring and rotating module; the support module is located at the bottom and includes a fixing plate and a support block; the support block is installed below the fixing plate; the loading module, the unloading module, the measuring and rotating module, and the measuring unit are all installed on the fixing plate; the loading module obtains the high-pressure fuel injector seat to be measured from the feeding place and delivers it to the measuring and rotating module, which transports it to the measuring place; after the measurement is completed, the measuring and rotating module returns the high-pressure fuel injector seat to the loading module, and then it is transferred to the unloading module by the loading module;

[0008] The unloading module includes a material receiver and a material receiving cylinder; the material receiver is connected to the movable end of the material receiving cylinder; the material receiving cylinder drives the material receiver to reciprocate between below the loading module and the discharging place.

[0009] Further, the loading module includes a loading platform, a loading cylinder, a clamping jaw cylinder, and a pushing cylinder; one end of the loading platform is the feeding place, and the other end is located above the loading cylinder; the high-pressure fuel injector seat enters from the feeding place and slides down along the loading platform to above the loading cylinder; when the loading cylinder acts, it lifts the high-pressure fuel injector seat located above it;

[0010] The pushing cylinder and the clamping jaw cylinder cooperate; the pushing cylinder is fixed on the support module, and the clamping jaw cylinder is installed on the movable end of the pushing cylinder; when the pushing cylinder acts, it drives the clamping jaw cylinder to move down to a position where it cooperates with the loading cylinder; when the clamping jaw cylinder acts, it clamps the lifted high-pressure fuel injector seat.

[0011] Further, the measuring and rotating module includes a servo cylinder, a moving plate, a rotating clamping jaw cylinder, and a servo motor; the moving plate is installed on the movable end of the servo cylinder and drives the moving plate to translate; the servo motor is installed on the moving plate; the rotating clamping jaw cylinder is installed on the servo motor and is driven by the servo motor to rotate; the rotating clamping jaw cylinder cooperates with the loading module to obtain the high-pressure fuel injector seat from the loading module before the measurement, clamp and rotate the high-pressure fuel injector seat during the test, and return the high-pressure fuel injector seat to the loading module after the measurement.

[0012] Further, the measuring unit includes a pneumatic gauge, an electric slide table, and a measuring head; the electric slide table and the measuring head are mounted on the clamping unit; the measuring head is connected to the movable end of the electric slide table and translates under the drive of the electric slide table to stay at different positions; the measuring head is also electrically connected to the pneumatic gauge and transmits the acquired raw data to the pneumatic gauge; the pneumatic gauge generates the measurement data based on the raw data and transmits it to the control unit.

[0013] The present invention also discloses a measuring method using the above-mentioned high-pressure injector seat inner diameter measuring system, which is characterized by including the steps:

[0014] Step S100, placing a plurality of the high-pressure injector seats from the feeding place onto the loading module in the clamping unit;

[0015] Step S200, using the start switch in the input / output unit to send a signal to the control unit; the control unit starts to dispatch the clamping unit and the measuring unit to act;

[0016] Step S300, the loading module grabs the high-pressure injector seat arranged at the forefront and delivers it to the measuring rotation module in the clamping unit, and the measuring rotation module transfers it to the measuring place;

[0017] Step S400, the measuring unit measures the inner diameter of the high-pressure injector seat located at the measuring place and sends the measurement data to the control unit; the control unit displays the operation information through the central control display and the alarm lamp in the input / output unit;

[0018] Step S500, the control unit compares the measurement data with the qualified parameters or unqualified parameter ranges set in the database. If the measurement data is abnormal, the control unit issues an alarm through the central control display and the alarm lamp and waits for manual processing before entering Step S600, otherwise directly enters Step S600;

[0019] Step S600, the clamping unit acts again, and the measuring rotation module returns the high-pressure injector seat to the loading module; the loading module cooperates with the unloading module in the clamping unit to transfer the high-pressure injector seat to the discharging place;

[0020] Step S700, jump to Step S300 to measure the inner diameter of the next high-pressure injector seat. After processing all the high-pressure injector seats at the feeding place, enter Step S800;

[0021] Step S800, take away all the tested high-pressure injector seats from the unloading module at the discharging place.

[0022] Further, in step 300, it includes sub-steps,

[0023] Step S301, the loading cylinder in the loading module acts to lift the high-pressure fuel injection seat at the foremost position within the loading platform in the loading module;

[0024] Step S302, the pushing cylinder in the loading module acts to drive the gripper cylinder in the loading module to descend to the position of the lifted high-pressure fuel injection seat;

[0025] Step S303, the gripper cylinder acts to clamp the lifted high-pressure fuel injection seat;

[0026] Step S304, the loading cylinder resets and descends, moving away from the high-pressure fuel injection seat;

[0027] Step S305, the servo cylinder in the measuring and rotating module in the gripping unit acts to push the moving plate in the measuring and rotating module to translate, so that the rotating gripper cylinder in the measuring and rotating module approaches the high-pressure fuel injection seat;

[0028] Step S306, the rotating gripper cylinder acts to clamp the high-pressure fuel injection seat; the gripper cylinder releases the high-pressure fuel injection seat; the pushing cylinder resets, driving the gripper cylinder to move upward and away from the high-pressure fuel injection seat;

[0029] Step S307, the servo cylinder resets, driving the moving plate, the rotating gripper cylinder, and the high-pressure fuel injection seat to move to the measuring position.

[0030] Further, in step 400, it includes sub-steps,

[0031] Step S401, the electric slide table in the measuring unit acts to drive the measuring head in the measuring unit to enter the high-pressure fuel injection seat to reach the first test position;

[0032] Step S402, the servo motor in the measuring and rotating module acts to drive the high-pressure fuel injection seat to rotate;

[0033] Step S403, the measuring head reads the original data of the inner diameter of the high-pressure fuel injection seat and transmits the original data to the pneumatic gauge in the measuring unit;

[0034] Step S404, the pneumatic gauge processes the original data to obtain the measured data of the inner diameter of the high-pressure fuel injection seat and feeds back the measured data to the control unit;

[0035] Step S405: If there are still remaining test positions, the electric slide table in the measuring unit operates to change the position of the measuring head inside the high-pressure fuel injector seat to the next test position; then jump to step S403; otherwise, the inner diameter measurement is completed.

[0036] Further, in step 600, it includes sub-steps.

[0037] Step S601: The servo cylinder operates to drive the moving plate, the rotary gripper cylinder, and the high-pressure fuel injector seat to move below the gripper cylinder in the loading module.

[0038] Step S602: The pushing cylinder operates to drive the gripper cylinder to move down to the side of the high-pressure fuel injector seat; the gripper cylinder operates to clamp the high-pressure fuel injector seat; the rotary gripper cylinder resets to release the high-pressure fuel injector seat.

[0039] Step S603: The servo cylinder resets to drive the moving plate and the rotary gripper cylinder away from the high-pressure fuel injector seat.

[0040] Step S604: The receiving cylinder in the unloading module operates to drive the receiver in the unloading module to reach below the gripper cylinder.

[0041] Step S605: The gripper cylinder resets to release the high-pressure fuel injector seat; the high-pressure fuel injector seat drops into the receiver; the pushing cylinder resets to drive the gripper cylinder to move up.

[0042] Step S606: The receiving cylinder resets to drive the receiver to reach the discharging location.

[0043] In view of the above technical features, the present invention has the following advantages:

[0044] 1. The inner diameter measurement system and method for the high-pressure fuel injector seat of the present invention can realize the inspection of the key safety part, the fuel injector seat part, in the ultra-high pressure oil rail automatically. Except for placing the oil rail product to be tested, basically no manual intervention is required, which greatly saves labor costs. It reduces the missed inspection and result judgment errors caused by human judgment of the inspection results.

[0045] 2. The inner diameter measurement system and method for the high-pressure fuel injector seat of the present invention can simultaneously perform automatic mechanical loading and inspection, improve the inspection quality, and prevent unqualified products from flowing into the next process.

[0046] 3. The inner diameter measurement system and method for the high-pressure fuel injector seat of the present invention can accurately find the unqualified positions of the product in different places, which is beneficial to finding out the reasons for the unqualified products subsequently. Description of the Drawings

[0047] Figure 1 It is a schematic structural diagram of a preferred embodiment of the inner diameter measurement system for the high-pressure injector seat of the present invention;

[0048] Figure 2 It is a schematic detailed structural diagram of the clamping unit and the measuring unit in a preferred embodiment of the inner diameter measurement system for the high-pressure injector seat of the present invention;

[0049] Figure 3 It is a flowchart of a preferred embodiment of the measurement method using the inner diameter measurement system for the high-pressure injector seat of the present invention.

[0050] In the figure: 1 - Central control display, 2 - Clamping unit, 3 - Servo cylinder, 4 - Start switch, 5 - Alarm lamp, 6 - Control unit, 7 - Pneumatic gauge, 8 - Measuring head, 9 - Electric slide table, 10 - Loading platform, 11 - Pushing cylinder, 12 - Claw cylinder, 13 - Receiving cylinder, 14 - Rotary claw cylinder, 15 - Loading cylinder, 16 - Receiver, 17 - High-pressure fuel injector seat, 18 - Moving plate, 19 - Servo motor, 20 - Fixed plate, 21 - Support block. Specific embodiments

[0051] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0052] Please refer to Figure 1 and Figure 2 The present invention discloses an inner diameter measurement system and a measurement method for a high-pressure injector seat. As shown in the figure, a preferred embodiment thereof includes an input / output unit, a control unit 6, a clamping unit 2, and a measuring unit.

[0053] The control unit 6 is a programmable logic controller, which is the management center of the entire system. It controls the clamping unit 2 and the measuring unit to work together, and obtains input and output information from the input / output unit. The input / output unit includes a central control display 1, an alarm lamp 5, and a start switch 4. It serves as a human-machine interface and is connected to the control unit 6. The central control display 1 and the alarm lamp 5 are connected to the control unit 6 as output devices. The central control display 1 can display detailed information, such as the running information during measurement. When the system is abnormal, the central control display 1 is also used to provide detailed alarm information. The alarm lamp 5 is a three-color lamp, which uses three colors, red, yellow, and green, to indicate running information and alarm information. Among them, green represents normal running information, while yellow and red represent alarm information. Yellow is for abnormal warning, and red is for fault warning. The start switch 4 is a two-hand switch. It is connected to the control unit as an input device and is used to notify the control unit 6 to start the measurement work.

[0054] The function of the clamping unit 2 is to grasp and transfer the high-pressure injector seat 17 to be measured from the feeding place to the measuring place near the measuring unit, and it is also used to transfer the high-pressure injector seat 17 to the discharging place after the measurement is completed. The clamping unit 2 includes four functional modules: a support module, a loading module, a unloading module, and a measuring rotation module.

[0055] The support module is the base of the clamping unit 2 and the measuring unit. It is located at the bottom of the clamping unit 2 and includes a fixing plate 20 and a support block 21. The support block 21 is installed below the fixing plate 20. Other modules of the clamping unit 2, such as the loading module, the unloading module, the measuring rotation module, and the measuring unit, are all installed on the fixing plate 20.

[0056] The loading module is located at the feeding place. It can store multiple high-pressure injector seats 17 to be measured, and then sequentially obtain and deliver them to the measuring unit through the measuring rotation module for individual measurement. The loading module includes a loading platform 10, a loading cylinder 15, a clamping jaw cylinder 12, and a pushing cylinder 11. One end of the loading platform 10 is located at the feeding place, and the other end is above the loading cylinder 15, and it is used to guide the high-pressure injector seat 17 to slide from the feeding place to above the loading cylinder 15. When the loading cylinder 15 operates, it lifts upward, thereby pushing the high-pressure injector seat 17 located above it to rise. This high-pressure injector seat is the frontmost high-pressure injector seat 17 in the loading platform 10.

[0057] The pushing cylinder 11 and the gripper cylinder 12 cooperate to grasp the lifted high-pressure fuel injector seat 17. The gripper cylinder 12 is installed at the movable end of the pushing cylinder 11. When the pushing cylinder 11 operates, the gripper cylinder 12 moves from top to bottom to reach the position where it cooperates with the loading cylinder 15, that is, beside the high-pressure fuel injector seat 17 to be measured. After the gripper cylinder 12 operates, it clamps the high-pressure fuel injector seat 17. After the gripper cylinder 12 clamps the high-pressure fuel injector seat 17, the loading cylinder 15 resets and descends to the initial position. At this time, the next high-pressure fuel injector seat 17 in the loading platform 10 slides forward to the upper part of the loading cylinder 15, preparing for the next measurement.

[0058] The unloading module is located at the discharging place and is used to store the measured high-pressure fuel injector seats 17. It includes a receiver 16 and a receiving cylinder 13. The receiver 16 is installed at the movable end of the receiving cylinder 13. The receiving cylinder 13 drives the receiver 16 to reciprocate between the lower part of the gripper cylinder 12 and the discharging place. When the measurement of the high-pressure fuel injector seat 17 is completed, under the control of the control unit 6, the receiving cylinder 13 pushes the receiver 16 to reach the lower part of the gripper cylinder 12. After the gripper cylinder 12 releases the high-pressure fuel injector seat 17, the receiver 16 receives the falling high-pressure fuel injector seat 17. Then the receiving cylinder 13 resets and drives the receiver 16 to the discharging place, waiting for the completion of the next measurement. Workers can transfer the tested high-pressure fuel injector seats 17 in the receiver 16 at the discharging place at any time.

[0059] The measuring and rotating module includes a servo cylinder 3, a moving plate 18, a rotating gripper cylinder 14 and a servo motor 19. The servo cylinder 3 is fixed on one side of the moving plate 18, and the moving plate 18 is installed at the movable end of the servo cylinder 3. The servo cylinder 3 drives the moving plate 18 to translate. The servo motor 19 and the rotating gripper cylinder 14 are both installed on the moving plate 18 and translate together with the moving plate 18. The rotating gripper cylinder 14 is connected to the movable end of the servo motor 19. After the rotating gripper cylinder 14 obtains the high-pressure fuel injector seat 17 from the gripper cylinder 12, it remains in the clamped state and drives the high-pressure fuel injector seat 17 to translate to the measuring place together, thus entering the working area of the measuring unit. During the measurement, the servo motor 19 drives the rotating gripper cylinder 14 to rotate, and then drives the high-pressure fuel injector seat 17 to rotate. Before and after the measurement, the rotating gripper cylinder 14 and the gripper cylinder 12 cooperate with each other to transfer the high-pressure fuel injector seat 17 twice: before the measurement, the rotating gripper cylinder 14 obtains the high-pressure fuel injector seat 17 from the gripper cylinder 12. After the measurement, the rotating gripper cylinder 14 returns the high-pressure fuel injector seat 17 to the gripper cylinder 12. These transfer processes are all controlled and coordinated by the control unit 6.

[0060] The measuring unit is a device that specifically measures the inner diameter of the high-pressure fuel injection seat. It includes a pneumatic gauge 7, a measuring head 8, and an electric slide table 9. The electric slide table 9 and the measuring head 8 are installed on the clamping unit 2, and the pneumatic gauge 7 is installed independently. There is an electrical connection between the pneumatic gauge 7 and the measuring head 8, allowing for two-way data transmission. The measuring head 8 is mechanically connected to the electric slide table 9. When the electric slide table 9 moves, it drives the measuring head 8 to translate. Specifically, when the high-pressure fuel injection seat 17 reaches the measuring position, the electric slide table 9 drives the measuring head 8 into the interior of the high-pressure fuel injection seat 17. As the high-pressure fuel injection seat 17 is rotated by the servo motor 19, the measuring head 8 completes the inner diameter measurement at the current position. Then, the electric slide table 9 drives the measuring head 8 to move again and stay at different measuring positions in the high-pressure fuel injection seat 17, and the inner diameter measurement is completed again at the new position. The raw data obtained by the measuring head 8 is transmitted to the pneumatic gauge 7, and after being further processed by the pneumatic gauge 7, the final measurement data is obtained and further fed back to the control unit 6.

[0061] Please refer to Figure 3 , the present invention also discloses a measuring method using the above-mentioned inner diameter measuring system for the high-pressure fuel injector seat. In one of its preferred embodiments, it includes the steps:

[0062] Step S1, place the high-pressure fuel injection seat to be measured.

[0063] Place multiple high-pressure fuel injection seats to be measured from the feeding place into the loading platform. The high-pressure fuel injection seats are sorted in sequence and slide along the loading platform towards the loading cylinder direction. Finally, the high-pressure fuel injection seat arranged at the forefront stays above the loading cylinder.

[0064] Step S2, start the inner diameter measuring system for the high-pressure fuel injector seat.

[0065] Press the start switch in the input / output unit to send a start signal to the control unit. After the control unit completes its own initialization, it schedules the clamping unit and the measuring unit to start measuring.

[0066] Step S3, select the high-pressure fuel injection seat.

[0067] The loading cylinder of the loading module in the clamping unit moves to lift the high-pressure fuel injection seat at the forefront in the loading platform and push it towards the direction of the clamping jaw cylinder.

[0068] Step S4, the loading module obtains the high-pressure fuel injection seat.

[0069] The pushing cylinder of the loading module in the clamping unit moves, causing the clamping jaw cylinder to descend to the side of the lifted high-pressure fuel injection seat. After the clamping jaw cylinder is in place, it moves to clamp the lifted high-pressure fuel injection seat. The loading cylinder resets and descends, disengaging from the high-pressure fuel injection seat that has been clamped by the clamping jaw cylinder.

[0070] Step S5, the first handover of the high-pressure fuel injection seat.

[0071] The servo cylinder of the measuring rotation module in the clamping unit acts, pushing the moving plate of the measuring rotation module in the clamping unit to translate. The rotating jaw cylinder installed on the moving plate is driven by the moving plate and approaches the high-pressure fuel injector seat fixed by the jaw cylinder. Then, the rotating jaw cylinder acts to clamp the high-pressure fuel injector seat. After the rotating jaw cylinder clamps the high-pressure fuel injector seat, the jaw cylinder resets to release the high-pressure fuel injector seat. Then, the pushing cylinder resets, and the jaw cylinder rises away from the high-pressure fuel injector seat.

[0072] Step S6, transfer the high-pressure fuel injector seat to the measuring position.

[0073] The servo cylinder resets, driving the moving plate back to its original position, thereby driving the rotating jaw cylinder and the high-pressure fuel injector seat clamped by it to move along, reaching the measuring position.

[0074] Step S7, the measuring head enters the high-pressure fuel injector seat.

[0075] The electric slide in the measuring unit acts, driving the measuring head in the measuring unit to enter the interior of the high-pressure fuel injector seat and reach the first measuring position.

[0076] Step S8, rotate the high-pressure fuel injector seat.

[0077] The servo motor of the measuring rotation module in the clamping unit acts, driving the rotating jaw cylinder to rotate, thereby driving the high-pressure fuel injector seat to rotate around its axis around the measuring head.

[0078] Step S9, read the original data of the inner diameter of the high-pressure fuel injector seat.

[0079] When the high-pressure fuel injector seat rotates, the measuring head in the measuring unit continuously reads the original data of the inner diameter of the high-pressure fuel injector seat and transmits the original data to the pneumatic gauge in the measuring unit.

[0080] Step S10, obtain the measurement data of the inner diameter of the high-pressure fuel injector seat.

[0081] The pneumatic gauge processes the original data, obtains the measurement data of the inner diameter of the high-pressure fuel injector seat, and feeds back the measurement data to the control unit.

[0082] Step S11, determine whether the measurement of all measurement positions is completed.

[0083] If there are still remaining measurement positions to be measured, jump to step S12; otherwise, jump to step S13.

[0084] Step S12, move the measuring head to a new measuring position.

[0085] The electric slide continues to act, driving the measuring head to move to the next measuring position inside the high-pressure fuel injector seat. Jump to step S9.

[0086] Step S13, evaluate the measurement data.

[0087] The control unit compares the feedback inspection parameters with the qualified parameters or unqualified parameter ranges set in the database to evaluate the validity of the measurement data. If the measurement data is abnormal, the control unit issues an alarm through the central control display and the alarm light, waiting for manual processing. The alarm method can be a red light or a yellow light. After manual processing, manual control is used to enter Step S14. Otherwise, the central control display shows the operation information, the alarm light shows a green light, and directly enters Step S14.

[0088] Step S14, prepare for the second handover of the high-pressure fuel injection seat.

[0089] The servo cylinder acts, driving the moving plate to translate, driving the rotating jaw cylinder and the high-pressure fuel injection seat clamped by it to move along, and reaching below the jaw cylinder.

[0090] Step S15, conduct the second handover of the high-pressure fuel injection seat.

[0091] The pushing cylinder acts. After the jaw cylinder descends in place, it acts to clamp the high-pressure fuel injection seat. The rotating jaw cylinder resets, releasing the high-pressure fuel injection seat. Then the servo cylinder resets, driving the rotating jaw cylinder to disengage from the high-pressure fuel injection seat.

[0092] Step S16, place the measured high-pressure fuel injection seat.

[0093] The receiving cylinder acts, pushing the receiver to reach below the jaw cylinder. After the jaw cylinder resets and the high-pressure fuel injection seat is released, it descends into the receiver. Subsequently, the pushing cylinder resets, and the jaw cylinder rises to the initial position. The receiving cylinder resets, driving the receiver back to the discharging position.

[0094] Step S17, if it is necessary to continue the measurement, then jump to Step S3 to conduct the inner diameter measurement of the next high-pressure fuel injection seat, otherwise enter Step S18.

[0095] Step S18, take away all the high-pressure fuel injection seats that have completed the measurement from the discharging position.

[0096] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A high-pressure injector seat inner diameter measurement system, characterized in that It includes an input / output unit, a control unit, a gripping unit, and a measuring unit; the input / output unit is connected to the control unit as a human-machine interface; the control unit is controllably connected to the gripping unit and the testing unit, and controls the coordinated operation of the gripping unit and the testing unit; Under the control of the control unit, the gripping unit grabs and transfers the high-pressure injector seat to be measured from the feeding location to the measuring location near the measuring unit, and after the measurement is completed, transfers the high-pressure injector seat to the discharging location again; under the control of the control unit, the measuring unit measures the inner diameters at multiple locations of the high-pressure injector seat and feeds back the measurement data to the control unit.

2. The high-pressure injector seat inner diameter measurement system according to claim 1, characterized in that, The input / output unit includes a central control display, an alarm lamp, and a start switch; the central control display and the alarm lamp are connected to the control unit as output devices; the central control display shows detailed operation information and alarm information; The alarm lamp prompts the brief operation information and the alarm information; the start switch is connected to the control unit as an input device and is used to notify the control unit to start the measurement.

3. The high-pressure injector seat inner diameter measurement system according to claim 1, characterized in that, The gripping unit includes a support module, a loading module, a unloading module, and a measuring rotation module; the support module is located at the bottom and includes a fixed plate and a support block; the support block is installed below the fixed plate; the loading module, the unloading module, the measuring rotation module, and the measuring unit are all installed on the fixed plate; the loading module obtains the high-pressure injector seat to be measured from the feeding location and delivers it to the measuring rotation module, which transports it to the measuring location; after the measurement is completed, the measuring rotation module returns the high-pressure injector seat to the loading module, and then it is transferred to the unloading module by the loading module; The unloading module includes a receiver and a receiving cylinder; the receiver is connected to the movable end of the receiving cylinder; the receiving cylinder drives the receiver to reciprocate between below the loading module and the discharging location.

4. The high-pressure injector seat inner diameter measurement system according to claim 3, characterized in that The loading module includes a loading platform, a loading cylinder, a jaw cylinder, and a pushing cylinder; one end of the loading platform is the feeding location, and the other end is above the loading cylinder; the high-pressure injector seat enters from the feeding location and slides down along the loading platform to above the loading cylinder; when the loading cylinder operates, it lifts the high-pressure injector seat above it; The pushing cylinder and the jaw cylinder cooperate; the pushing cylinder is fixed on the support module, and the jaw cylinder is installed at the movable end of the pushing cylinder; when the pushing cylinder operates, it drives the jaw cylinder to move down to a position where it cooperates with the loading cylinder; when the jaw cylinder operates, it clamps the lifted high-pressure injector seat.

5. The high-pressure injector seat inner diameter measurement system according to claim 3, characterized in that, The measurement rotation module includes a servo cylinder, a moving plate, a rotary gripper cylinder, and a servo motor; the moving plate is installed at the movable end of the servo cylinder to drive the moving plate to translate; the servo motor is installed on the moving plate; the rotary gripper cylinder is installed on the servo motor and is driven by the servo motor to rotate; the rotary gripper cylinder cooperates with the feeding module to obtain the high-pressure fuel injection seat from the feeding module before measurement, hold and rotate the high-pressure fuel injection seat during the test, and return the high-pressure fuel injection seat to the feeding module after measurement.

6. The high-pressure injector seat inner diameter measurement system according to claim 1, wherein The measurement unit includes a pneumatic gauge, an electric slide table, and a measuring head; the electric slide table and the measuring head are installed on the clamping unit; the measuring head is connected to the movable end of the electric slide table and translates under the drive of the electric slide table to stay at different positions; the measuring head is also electrically connected to the pneumatic gauge to transmit the acquired raw data to the pneumatic gauge. The pneumatic gauge generates the measurement data based on the raw data and transmits it to the control unit.

7. A measurement method using the high-pressure injector seat inner diameter measurement system as described in claim 1, characterized in that, It includes steps: Step S100, place a plurality of the high-pressure fuel injection seats from the feeding location onto the feeding module in the clamping unit. Step S200, use the start switch in the input / output unit to send a signal to the control unit; the control unit starts to dispatch the actions of the clamping unit and the measurement unit. Step S300, the feeding module grabs the high-pressure fuel injection seat arranged at the forefront and delivers it to the measurement rotation module in the clamping unit, and the measurement rotation module transfers it to the measurement location. Step S400, the measurement unit measures the inner diameter of the high-pressure fuel injection seat located at the measurement location and sends the measurement data to the control unit; the control unit displays the operation information through the central control display and the alarm light in the input / output unit. Step S500, the control unit compares the measurement data with the qualified parameters or unqualified parameter ranges set in the database. If the measurement data is abnormal, the control unit issues an alarm through the central control display and the alarm light and waits for manual processing before entering Step S600, otherwise directly enters Step S600. Step S600, the clamping unit acts again, and the measurement rotation module returns the high-pressure fuel injection seat to the feeding module; the feeding module cooperates with the discharging module in the clamping unit to transfer the high-pressure fuel injection seat to the discharging location. Step S700, jump to Step S300 to measure the inner diameter of the next high-pressure fuel injection seat. After processing all the high-pressure fuel injection seats at the feeding location, enter Step S800. Step S800, take away all the high-pressure fuel injection seats that have completed the test from the discharging module at the discharging location.

8. The measuring method using the high-pressure injector seat inner diameter measuring system according to claim 7, characterized in that, In Step 300, it includes sub-steps. Step S301, the feeding cylinder in the feeding module acts to lift the high-pressure fuel injection seat at the forefront in the feeding platform of the feeding module. Step S302: The pushing cylinder in the loading module operates to drive the gripper cylinder in the loading module to descend to the position of the lifted high-pressure fuel injector seat. Step S303: The gripper cylinder operates to clamp the lifted high-pressure fuel injector seat. Step S304: The loading cylinder resets and descends, moving away from the high-pressure fuel injector seat. Step S305: The servo cylinder in the measuring and rotating module of the gripping unit operates to push the moving plate in the measuring and rotating module to translate, so that the rotating gripper cylinder in the measuring and rotating module approaches the high-pressure fuel injector seat. Step S306: The rotating gripper cylinder operates to clamp the high-pressure fuel injector seat; the gripper cylinder releases the high-pressure fuel injector seat; the pushing cylinder resets, driving the gripper cylinder to move upward away from the high-pressure fuel injector seat. Step S307: The servo cylinder resets, driving the moving plate, the rotating gripper cylinder, and the high-pressure fuel injector seat to move to the measuring position.

9. The measuring method using the high-pressure injector seat inner diameter measuring system according to claim 7, characterized in that, In step 400, it includes sub-steps. Step S401: The electric slide in the measuring unit operates to drive the measuring head in the measuring unit to enter the high-pressure fuel injector seat to reach the first test position. Step S402: The servo motor in the measuring and rotating module operates to drive the high-pressure fuel injector seat to rotate. Step S403: The measuring head reads the original data of the inner diameter of the high-pressure fuel injector seat and transmits the original data to the pneumatic gauge in the measuring unit. Step S404: The pneumatic gauge processes the original data to obtain the measured data of the inner diameter of the high-pressure fuel injector seat and feeds back the measured data to the control unit. Step S405: If there are remaining test positions, the electric slide in the measuring unit operates to change the position of the measuring head inside the high-pressure fuel injector seat to the next test position. Jump to step S403; otherwise, the inner diameter measurement is completed.

10. The measuring method using the high-pressure injector seat inner diameter measuring system according to claim 7, characterized in that, In step 600, it includes sub-steps. Step S601: The servo cylinder operates to drive the moving plate, the rotating gripper cylinder, and the high-pressure fuel injector seat to move below the gripper cylinder in the loading module. Step S602: The pushing cylinder operates to drive the gripper cylinder to move downward to the side of the high-pressure fuel injector seat; the gripper cylinder operates to clamp the high-pressure fuel injector seat; the rotating gripper cylinder resets and releases the high-pressure fuel injector seat. Step S603: The servo cylinder resets, driving the moving plate and the rotating gripper cylinder away from the high-pressure fuel injector seat. Step S604: The receiving cylinder in the unloading module operates to drive the receiver in the unloading module to reach below the gripper cylinder. Step S605: The gripper cylinder resets and releases the high-pressure fuel injector seat; the high-pressure fuel injector seat falls into the receiver; the pushing cylinder resets, driving the gripper cylinder to move upward. Step S606: The receiving cylinder resets, driving the receiver to reach the discharging position.

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