A device for improving the accuracy of machining high-pressure common rail fuel injection nozzle needle valve

Abstract

The utility model discloses a kind of device for improving the precision of processing high-pressure common rail fuel injector needle valve, it is related to high-pressure common rail fuel injector needle valve processing technical field, including support seat, the top of support seat is equipped with moving block, the top of moving block is fixedly provided with processing assembly, the end of moving block is fixedly provided with laser emitter, the top of support seat is equipped with recess, recess is equipped with adjusting mechanism, and is equipped with calibration block by adjusting mechanism, the top of calibration block is fixedly provided with rack, the top of rack is equipped with clamping mechanism, the inside of calibration block is equipped with light transmission hole, the top of support seat is fixedly provided with calibration plate. The utility model can be after needle valve position is determined, transverse needle valve is moved to make that light emitted by laser emitter can pass through light transmission hole and show on calibration plate, to determine that processing assembly and needle valve are located in same horizontal, ensure accuracy in processing process.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure common rail fuel injector needle valve processing technology, specifically to a device for improving the processing accuracy of high-pressure common rail fuel injector needle valves. Background Technology

[0002] The high-pressure common rail injector needle valve is a core precision component of the high-pressure common rail fuel injection system. It typically consists of a needle valve and a needle valve body. Currently, to improve the machining accuracy of the injector needle valve, laser components are used for irradiation and comparison. For example, patent document CN217045681U discloses a device for improving the machining accuracy of high-pressure common rail injector needle valves. This device uses a laser lamp, a laser calibration base, and a second movable stage. When it is necessary to calibrate the high-pressure common rail injector needle valve body and the machining component, the user only needs to control the laser lamp via a control switch. Then, by pulling the limit rod, the limit rod is disengaged from the positioning groove. With the cooperation of the laser lamp and the laser calibration base, and by simultaneously moving the second movable stage, the position of the high-pressure common rail injector needle valve body and the machining component can be easily calibrated.

[0003] However, since the needle valve has a lateral width after it is set, the laser component can be used to roughly calibrate its lateral position. However, it cannot be guaranteed that the processing component and the needle valve component are on the same horizontal line, so the processing accuracy cannot be greatly improved. Utility Model Content

[0004] In view of the problems existing in the above-mentioned devices for improving the machining accuracy of high-pressure common rail injector needle valves, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a device for improving the machining accuracy of high-pressure common rail injector needle valves, which solves the problem of poor calibration accuracy in the machining and calibration process of existing high-pressure common rail injector needle valves.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A device for improving the machining accuracy of high-pressure common rail fuel injector needle valves includes a support base, a movable block on the top of the support base, a machining component fixedly mounted on the top of the movable block, a laser emitter fixedly mounted at the end of the movable block, a groove on the top of the support base, an adjustment mechanism within the groove, a calibration block mounted through the adjustment mechanism, a placement frame fixedly mounted on the top of the calibration block, a clamping mechanism on the top of the placement frame, a light-transmitting hole inside the calibration block, and a calibration plate fixedly mounted on the top of the support base.

[0008] Preferably, the adjustment mechanism includes an adjustment screw, which is rotatably disposed in the groove and threaded inside the calibration block. The end of the adjustment screw passes through the support seat and is fixedly provided with a crank handle.

[0009] Preferably, a mounting plate is fixedly provided on the top of the support base, and an electric push rod is fixedly provided on the outer wall of the mounting plate. The output shaft end of the electric push rod is fixedly connected to the moving block.

[0010] Preferably, the clamping mechanism includes a top frame, which is fixedly mounted on the top of the placement frame, and a clamping screw is threaded through the top. A pressure block is rotatably fitted onto the bottom of the clamping screw, and a knob is fixedly mounted on the top of the clamping screw.

[0011] Furthermore, the pressure block is a T-shaped pressure block, and both sides of the top frame are provided with sliding grooves, and the side of the pressure block is slidably disposed in the sliding grooves.

[0012] Preferably, the light-transmitting aperture and the laser emitter are located on the same horizontal line.

[0013] Preferably, both the placement rack and the top rack are U-shaped.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. This utility model, through the provided moving block, laser emitter, calibration block, light-transmitting hole, calibration plate, placement rack, and adjustment mechanism, enables the needle valve to be moved laterally after the needle valve position is determined, so that the light emitted by the laser emitter can pass through the light-transmitting hole and be displayed on the calibration plate, thereby ensuring that the processing component and the needle valve are at the same horizontal level and guaranteeing the accuracy during the processing.

[0016] 2. This utility model, through the provided placement frame and clamping mechanism, can stably place the needle valve in the placement frame, ensuring that the position of the needle valve is fixed during calibration and processing, and further improving processing accuracy. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a side view of the present invention;

[0020] Figure 3 For the present utility model Figure 1 Enlarged schematic diagram of part A.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Support base; 2. Moving block; 3. Processing component; 4. Laser emitter; 5. Calibration block; 6. Placement rack; 7. Light-transmitting hole; 8. Calibration plate; 9. Adjusting screw; 10. Handle; 11. Mounting plate; 12. Electric push rod; 13. Top frame; 14. Clamping screw; 15. Pressure block; 16. Knob; 17. Slide groove. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model discloses a device for improving the machining accuracy of high-pressure common rail fuel injector needle valves.

[0025] This utility model provides, for example Figure 1-3 The device shown is for improving the machining accuracy of a high-pressure common rail injector needle valve. It includes a support base 1, a movable block 2 on the top of the support base 1, a machining component 3 fixedly mounted on the top of the movable block 2, and a laser emitter 4 fixedly mounted at the end of the movable block 2. The movable block 2 can move horizontally on the top of the support base 1, and the machining component 3 fixed on the top moves synchronously with it to achieve machining feed for the needle valve. The laser emitter 4 at the end is used to emit a calibration laser to provide a reference for the horizontal alignment of the machining component 3 and the needle valve. A groove is formed on the top of the support base 1, and an adjustment mechanism is provided within the groove. A calibration block 5 is located through the adjustment mechanism. The adjustment mechanism includes an adjustment screw 9, which is rotatably disposed within the groove and threaded into the calibration block 5. The end of the adjustment screw 9 extends out of the support base 1 and is fixedly mounted with a crank handle 10. A placement rack 6 is fixedly mounted on the top of the calibration block 5. A clamping mechanism is provided on the top of the placement rack 6. A light-transmitting hole 7 is opened inside the calibration block 5. The light-transmitting hole 7 and the laser emitter 4 are located on the same horizontal line. A calibration plate 8 is fixedly mounted on the top of the support base 1. The laser beam emitted by the laser emitter 4 is initially on the same horizontal line as the light-transmitting hole 7. The horizontal position relationship between the processing component 3 and the needle valve can be intuitively judged by whether the laser passes through the light-transmitting hole 7 and is projected onto the calibration plate 8. A mounting plate 11 is fixedly mounted on the top of the support base 1. An electric push rod 12 is fixedly mounted on the outer wall of the mounting plate 11. The end of the output shaft of the electric push rod 12 is fixedly connected to the moving block 2. The mounting plate 11 provides fixed support for the electric push rod 12. The output shaft of the electric push rod 12 pushes the moving block 2 to move, realizing the automated feeding of the processing component 3.

[0026] To ensure the needle valve is stably positioned within the mounting frame and its location remains fixed during calibration and machining, such as... Figure 1 and Figure 3 As shown, the clamping mechanism includes a top frame 13 and a placement frame 6, both of which are U-shaped. The top frame 13 is fixedly mounted on the top of the placement frame 6, and a clamping screw 14 is threaded through its top. A pressure block 15 is rotatably fitted onto the bottom of the clamping screw 14. The pressure block 15 is T-shaped. Slide grooves 17 are provided on both sides of the top frame 13, and the side of the pressure block 15 slides within the slide grooves 17. A knob 16 is fixedly mounted on the top of the clamping screw 14. The top frame 13 is fixed to the top of the placement frame 6. Rotating the knob 16 causes the clamping screw 14 to rotate, causing the pressure block 15 to move vertically downward along the slide groove 17. The T-shaped pressure block 15 cooperates with the placement frame 6 to clamp the needle valve. The slide groove 17 restricts the movement direction of the pressure block 15, preventing it from rotating and ensuring that the clamping force acts perpendicularly on the needle valve, preventing the needle valve from loosening or shifting during processing.

[0027] Working principle: When using this device, first place the high-pressure common rail injector needle valve to be processed on the placement frame 6, turn the knob 16 to drive the clamping screw 14 to rotate, so that the pressure block 15 moves down along the sliding grooves 17 on both sides of the top frame 13 until the pressure block 15 tightly presses the needle valve, and the needle valve is stably fixed through the clamping mechanism.

[0028] Then, the laser emitter 4 is activated. The light emitted by the laser emitter 4 is directed toward the calibration block 5. If the light does not pass through the light-transmitting hole 7, the crank handle 10 can be turned to drive the adjusting screw 9 to rotate in the groove. Since the adjusting screw 9 is threadedly connected to the calibration block 5, the calibration block 5 will move laterally in the groove of the support base 1 as the adjusting screw 9 rotates, thereby driving the placement frame 6 and the needle valve to move synchronously until the light emitted by the laser emitter 4 passes through the light-transmitting hole 7 and is projected onto the calibration plate 8. At this time, it indicates that the processing component 3 and the needle valve are on the same horizontal line, and the calibration is completed.

[0029] After calibration, start the electric push rod 12 on the mounting plate 11. The output shaft of the electric push rod 12 pushes the moving block 2 to move on the top of the support base 1, so that the processing component 3 on the moving block 2 is close to the needle valve and the needle valve is processed.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for improving the machining accuracy of high-pressure common rail injector needle valves, comprising a support base (1), characterized in that, The support base (1) has a movable block (2) on its top, a processing component (3) is fixedly mounted on the top of the movable block (2), a laser emitter (4) is fixedly mounted on the end of the movable block (2), a groove is provided on the top of the support base (1), an adjustment mechanism is provided in the groove, and a calibration block (5) is provided through the adjustment mechanism, a placement rack (6) is fixedly mounted on the top of the calibration block (5), a clamping mechanism is provided on the top of the placement rack (6), a light-transmitting hole (7) is provided inside the calibration block (5), and a calibration plate (8) is fixedly mounted on the top of the support base (1).

2. The apparatus for improving the machining accuracy of high-pressure common rail injector needle valves according to claim 1, characterized in that, The adjustment mechanism includes an adjustment screw (9), which is rotatably disposed in the groove and threaded inside the calibration block (5). The end of the adjustment screw (9) passes through the support seat (1) and is fixedly provided with a crank handle (10).

3. The apparatus for improving the machining accuracy of high-pressure common rail injector needle valves according to claim 1, characterized in that, The top of the support base (1) is fixedly provided with an installation plate (11), and the outer wall of the installation plate (11) is fixedly provided with an electric push rod (12). The output shaft end of the electric push rod (12) is fixedly connected to the moving block (2).

4. The apparatus for improving the machining accuracy of high-pressure common rail injector needle valves according to claim 1, characterized in that, The clamping mechanism includes a top frame (13), which is fixedly mounted on the top of the placement frame (6), and a clamping screw (14) is threaded through the top. A pressure block (15) is rotatably sleeved on the bottom of the clamping screw (14), and a knob (16) is fixedly mounted on the top of the clamping screw (14).

5. The apparatus for improving the machining accuracy of high-pressure common rail injector needle valves according to claim 4, characterized in that, The pressure block (15) is a T-shaped pressure block, and the top frame (13) has grooves (17) on both sides, and the side of the pressure block (15) is slidably disposed in the grooves (17).

6. The apparatus for improving the machining accuracy of high-pressure common rail injector needle valves according to claim 1, characterized in that, The light-transmitting hole (7) and the laser emitter (4) are located on the same horizontal line.

7. The apparatus for improving the machining accuracy of high-pressure common rail injector needle valves according to claim 1, characterized in that, Both the placement rack (6) and the top rack (13) are U-shaped.

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