A device for smoothing the inner wall of an oil nozzle
By using a combination of threaded rods and sliding frames in the nozzle inner wall smoothing equipment, combined with the drive of a grinding roller and a motor, the adaptability problem of existing equipment to nozzles of different specifications has been solved, achieving stable fixation and efficient smoothing treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI FUER PRECISION MACHINERY
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-12
Smart Images

Figure CN224347568U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fuel injector treatment technology, specifically relating to a fuel injector inner wall smoothing treatment device. Background Technology
[0002] The fuel injector is a core solenoid valve component in an electronic fuel injection engine that controls fuel injection. It controls the movement of the needle valve through an electromagnetic coil to achieve fuel atomization and injection, directly affecting engine performance.
[0003] In order to ensure good oil spraying effect during the processing of fuel injectors, the inner wall of the injector is smoothed. However, the existing smoothing equipment requires the use of different specifications of tooling clamping mechanisms to match fuel injectors with different orifice sizes. Moreover, it is not convenient to make adaptive adjustments to the position of the processing roller. Therefore, we propose a fuel injector inner wall smoothing equipment. Utility Model Content
[0004] The purpose of this utility model is to provide a device for smoothing the inner wall of a fuel injector, so as to solve the problems mentioned in the background art that existing smoothing devices require the use of different specifications of tooling clamping mechanisms for fuel injectors with different orifice sizes, and that the position of the processing roller is not easy to be adjusted adaptively.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for smoothing the inner wall of an injector, comprising a frame, on which a support plate and two sliding frames are provided. The support plate and one of the sliding frames are respectively fixedly installed at the front and rear ends of the upper surface of the frame. A cylinder is fixedly installed on the side of the support plate, and a push plate is fixedly installed at the piston rod end of the cylinder. An mounting plate is slidably arranged on the side of the push plate. A processing motor is fixedly installed on the side of the mounting plate, and a processing roller is fixedly installed at the output shaft end of the processing motor. Two fixing plates are fixedly installed on the lower surface of the frame, and an adjusting motor is fixedly installed on the side of one of the fixing plates. A threaded rod is rotatably installed between the two fixing plates. The output shaft of the adjusting motor is fixedly connected to the threaded rod, and the outer surface of the threaded rod is threaded. A threaded plate is installed, which is fixedly installed on the inner wall of another sliding frame. The sliding frame has two horizontal arm plates, one above the other. A cylinder is fixedly installed on the upper surface of the sliding frame, and the piston rod end of the cylinder is fixedly connected to the horizontal arm plate at the upper position. The horizontal arm plate at the lower position is fixedly installed on the lower surface of the inner wall of the sliding frame. The sliding frame has three support plates. The support plate at the upper position is fixedly installed on the lower surface of the horizontal arm plate at the upper position. The two support plates at the lower position are both fixedly installed on the lower surface of the horizontal arm plate at the lower position. A sanding roller is rotatably installed on the support plate. A drive motor is fixedly installed on the side of the support plate at the upper position. The output shaft of the drive motor is fixedly connected to the sanding roller at the upper position. A baffle is fixedly installed on the surface of the frame.
[0006] The above solution utilizes a threaded rod in conjunction with two sliding brackets, one fixed and one movable, which move in tandem with the threaded rod. The fixed lower crossarm plate and the movable upper crossarm plate secure the fuel injector workpiece, allowing for the clamping and fixing of fuel injector workpieces of different lengths and thicknesses. A grinding roller, in conjunction with a drive motor, enables the rotation of the fixed fuel injector workpiece, facilitating the smoothing of the inner wall. A cylinder, working in conjunction with a push plate, enables the horizontal pushing of the processing motor and processing roller. The processing motor can also slide and adjust its position with the mounting plate and sliding block, allowing for smoothing of fuel injector workpieces of different thicknesses and improving its versatility.
[0007] In the above scheme, it should be noted that cylinder one, processing motor, regulating motor, cylinder two and drive motor are all electrically connected to an external power supply.
[0008] In a preferred embodiment, a guide rod is slidably mounted on the support plate, and the end of the guide rod is fixedly connected to the side of the push plate.
[0009] With the above scheme, when cylinder one drives the push plate to move, the push plate will drive guide rod one to move. The setting of guide rod one can ensure the stable movement of the push plate and prevent wobbling and tilting.
[0010] In a preferred embodiment, the push plate has a sliding groove on its side, and a sliding block is fixedly installed on the side of the mounting plate. The sliding block is slidably installed on the inner wall of the sliding groove, and a plurality of guide rods are fixedly installed on the inner wall of the sliding groove. The sliding block is slidably installed on the outer surface of the plurality of guide rods.
[0011] By adopting the above scheme, the sliding block slides in the sliding groove, and the guide rod 2 supports the movement of the sliding block, thereby ensuring the stable operation of the mounting plate, improving the smoothness of movement, and thus improving the stable movement of the processing motor and processing roller.
[0012] In a preferred embodiment, a plurality of guide rods are fixedly installed between the two fixed plates, and the threaded plate is slidably installed on the outer surface of the plurality of guide rods.
[0013] With the above scheme, when the threaded rod rotates to drive the threaded plate to move, the threaded plate will move stably on the surface of the guide rod three. The setting of the guide rod three can avoid the phenomenon of tilting and swaying during the movement of the threaded plate.
[0014] In a preferred embodiment, a fixing screw is fixedly installed on the side of the sliding block, and a strip hole communicating with the sliding groove is opened on the side of the push plate. The fixing screw passes through the strip hole and is threaded with a fixing nut. The fixing nut is fitted and arranged on the side of the push plate.
[0015] Using the above solution, when the fixing nut is unscrewed, the sliding block is unlocked. At this time, the mounting plate can slide and adjust its position through the sliding block. After the sliding adjustment is completed, the fixing nut is screwed on to lock the position of the sliding block. The locking structure is simple and easy to operate.
[0016] In a preferred embodiment, a sliding strip is fixedly installed on the inner wall of the sliding frame, and a sliding seat is fixedly installed at the end of the cross arm plate at the upper position. The sliding seat is slidably installed on the outer surface of the sliding strip.
[0017] By using the above solution, and by using a sliding bar in conjunction with a sliding seat, the stable up-and-down movement of the horizontal arm plate at the upper position can be ensured.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] This fuel injector inner wall smoothing equipment uses a threaded rod in conjunction with two sliding frames. One sliding frame is fixed and the other is movable. The threaded rod enables the movement of the sliding frames. The fixed horizontal arm plate below and the movable horizontal arm plate above fix the fuel injector workpiece. This allows fuel injector workpieces of different lengths and thicknesses to be fixed and clamped. Furthermore, by using a grinding roller in conjunction with a drive motor, the fixed fuel injector workpiece can be rotated, which facilitates the smoothing of the inner wall of the fuel injector.
[0020] This nozzle inner wall smoothing equipment uses a cylinder in conjunction with a push plate to achieve horizontal pushing of the processing motor and processing roller. The processing motor can slide and adjust its position with the mounting plate and sliding block, thus enabling smoothing treatment of nozzle workpieces of different thicknesses and improving its versatility. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a structural schematic diagram of the present invention from another angle;
[0023] Figure 3 This is a schematic diagram of the structure of the support plate of this utility model;
[0024] Figure 4 This is a schematic diagram of the structure of the push plate of this utility model;
[0025] Figure 5 This is a schematic diagram of the sliding frame of this utility model.
[0026] In the diagram: 1. Frame; 2. Support plate; 3. Cylinder 1; 4. Push plate; 5. Mounting plate; 6. Processing motor; 7. Processing roller; 8. Sliding frame; 9. Fixing plate; 10. Adjusting motor; 11. Threaded rod; 12. Threaded plate; 13. Cross arm plate; 14. Cylinder 2; 15. Support plate; 16. Grinding roller; 17. Drive motor; 18. Guide rod 1; 19. Sliding block; 20. Guide rod 2; 21. Fixing screw; 22. Fixing nut; 23. Guide rod 3; 24. Sliding seat; 25. Sliding bar; 26. Baffle. Detailed Implementation
[0027] Please see Figure 1-5This utility model provides a device for smoothing the inner wall of an oil injector, including a frame 1. A support plate 2 and two sliding frames 8 are mounted on the frame 1. The support plate 2 and one of the sliding frames 8 are respectively fixedly installed at the front and rear ends of the upper surface of the frame 1. A cylinder 3 is fixedly installed on the side of the support plate 2. A push plate 4 is fixedly installed at the end of the piston rod of the cylinder 3. A mounting plate 5 is slidably mounted on the side of the push plate 4. A processing motor 6 is fixedly installed on the side of the mounting plate 5. A processing roller 7 is fixedly installed at the end of the output shaft of the processing motor 6. Two fixing plates 9 are fixedly installed on the lower surface of the frame 1. An adjusting motor 10 is fixedly installed on the side of one of the fixing plates 9. A threaded rod 11 is rotatably installed between the two fixing plates 9. The output shaft of the adjusting motor 10 is fixedly connected to the threaded rod 11. A threaded plate 12 is threadedly installed on the outer surface of the threaded rod 11. A cylinder 14 is fixedly installed on the inner wall of another sliding frame 8. The sliding frame 8 has two horizontal arm plates 13, one above the other. A cylinder 14 is fixedly installed on the upper surface of the sliding frame 8. The piston rod end of the cylinder 14 is fixedly connected to the horizontal arm plate 13 at the upper position. The horizontal arm plate 13 at the lower position is fixedly installed on the lower surface of the inner wall of the sliding frame 8. Three support plates 15 are provided inside the sliding frame 8. The support plate 15 at the upper position is fixedly installed on the lower surface of the horizontal arm plate 13 at the upper position. The two support plates 15 at the lower position are both fixedly installed on the lower surface of the horizontal arm plate 13 at the lower position. A sanding roller 16 is rotatably installed on the support plate 15. A drive motor 17 is fixedly installed on the side of the support plate 15 at the upper position. The output shaft of the drive motor 17 is fixedly connected to the sanding roller 16 at the upper position. A baffle 26 is fixedly installed on the surface of the frame 1.
[0028] By using a threaded rod 11 in conjunction with two sliding brackets 8, one fixed and one movable, the two sliding brackets 8 work together with the threaded rod 11 to achieve positional movement. The fixed lower crossarm plate 13 and the movable upper crossarm plate 13 are used to fix the fuel injector workpiece, thereby enabling the fixing and clamping of fuel injector workpieces of different lengths and thicknesses. The grinding roller 16 is used in conjunction with the drive motor 17 to achieve the rotation of the fixed fuel injector workpiece, which facilitates the smoothing of the inner wall of the fuel injector. By using a cylinder 3 in conjunction with a push plate 4, the horizontal pushing operation of the processing motor 6 and the processing roller 7 is achieved. The processing motor 6 can slide and adjust its position with the mounting plate 5 and the sliding block 19, thereby enabling the smoothing of fuel injector workpieces of different thicknesses and improving the versatility of use.
[0029] A guide rod 18 is slidably mounted on the support plate 2. The end of the guide rod 18 is fixedly connected to the side of the push plate 4. When the cylinder 3 drives the push plate 4 to move, the push plate 4 will drive the guide rod 18 to move. The guide rod 18 can ensure the stable movement of the push plate 4 and prevent swaying or tilting.
[0030] The side of the push plate 4 is provided with a sliding groove, and the side of the mounting plate 5 is fixedly installed with a sliding block 19. The sliding block 19 is slidably installed on the inner wall of the sliding groove, and several guide rods 20 are fixedly installed on the inner wall of the sliding groove. The sliding block 19 is slidably installed on the outer surface of the several guide rods 20. By using the sliding block 19 to slide in the sliding groove, the guide rods 20 support the movement of the sliding block 19, thereby ensuring the stable operation of the mounting plate 5, improving the smoothness of movement, and thus improving the stable movement of the processing motor 6 and the processing roller 7.
[0031] Several guide rods 23 are fixedly installed between the two fixed plates 9. The threaded plate 12 is slidably installed on the outer surface of the guide rods 23. When the threaded rod 11 rotates to drive the threaded plate 12 to move, the threaded plate 12 will move stably on the surface of the guide rods 23. The setting of the guide rods 23 can prevent the threaded plate 12 from tilting and swaying during movement.
[0032] A fixing screw 21 is fixedly installed on the side of the sliding block 19. A strip hole communicating with the sliding groove is opened on the side of the push plate 4. The fixing screw 21 passes through the strip hole and is threaded with a fixing nut 22. The fixing nut 22 is fitted and arranged on the side of the push plate 4. When the fixing nut 22 is unscrewed from the fixing screw 21, the sliding block 19 is unlocked. At this time, the mounting plate 5 can slide and adjust its position through the sliding block 19. After the sliding adjustment is completed, the fixing nut 22 is screwed on to lock the position of the sliding block 19. The locking structure is simple and easy to operate.
[0033] A sliding strip 25 is fixedly installed on the inner wall of the sliding frame 8, and a sliding seat 24 is fixedly installed at the end of the horizontal arm plate 13 at the upper position. The sliding seat 24 is slidably installed on the outer surface of the sliding strip 25. By using the sliding strip 25 in conjunction with the sliding seat 24, the stable up and down movement of the horizontal arm plate 13 at the upper position can be ensured.
[0034] In use, the position of the movable sliding bracket 8 is adjusted according to the length of the fuel injector workpiece. During adjustment, the adjusting motor 10 is started, driving the threaded rod 11 to rotate, which in turn drives the threaded plate 12 to move, and consequently drives the movable sliding bracket 8 to move horizontally. After adjusting to the appropriate position, the adjusting motor 10 is stopped. The fuel injector workpiece is inserted into the two sliding brackets 8, ensuring one end of the fuel injector is in contact with the baffle 26. Then, the cylinder 14 is started, driving the upper horizontal arm plate 13 downwards, which in turn drives the upper abrasive roller 16 downwards. The abrasive rollers 16 at the upper and lower positions cooperate to clamp and fix the fuel injector workpiece. Then, the cylinder 14 is stopped, and the position is adjusted according to the fuel injector's position. The thickness specification of the nozzle workpiece allows for position adjustment of the processing motor 6. During adjustment, the fixing nut 22 is unscrewed, which unlocks the sliding block 19 and allows the mounting plate 5 to move up and down. After moving to the appropriate position, the fixing nut 22 is screwed back on to adjust the position of the processing motor 6. Once adjusted, the cylinder 3, drive motor 17, and processing motor 6 are started. Cylinder 3 drives the push plate 4 to move horizontally, which in turn drives the processing roller 7 to penetrate into the inner wall of the nozzle. At this time, the nozzle is in contact with the inner wall of the nozzle workpiece. Simultaneously, the processing motor 6 drives the processing roller 7 to rotate, which, together with the drive motor 17, drives the nozzle workpiece to rotate through the abrasive roller 16, thus achieving the smoothing process of the inner wall of the nozzle workpiece.
Claims
1. A device for smoothing the inner wall of a fuel injector, characterized in that: The machine includes a frame (1), on which a support plate (2) and two sliding frames (8) are provided. The support plate (2) and one of the sliding frames (8) are respectively fixedly installed at the front and rear ends of the upper surface of the frame (1). A cylinder (3) is fixedly installed on the side of the support plate (2). A push plate (4) is fixedly installed at the piston rod end of the cylinder (3). A mounting plate (5) is slidably provided on the side of the push plate (4). A processing motor (6) is fixedly installed on the side of the mounting plate (5). A processing roller (7) is fixedly installed at the output shaft end of the processing motor (6). Two fixing plates (9) are fixedly installed on the lower surface of the frame (1). An adjusting motor (10) is fixedly installed on the side of one of the fixing plates (9). A threaded rod (11) is rotatably installed between the two fixing plates (9). The output shaft of the adjusting motor (10) is fixedly connected to the threaded rod (11). A threaded plate (12) is threadedly installed on the outer surface of the threaded rod (11). The threaded plate (12) is fixedly installed. On the inner wall of another sliding frame (8), there are two horizontal arm plates (13) inside the sliding frame (8), one above the other. A cylinder (14) is fixedly installed on the upper surface of the sliding frame (8). The piston rod end of the cylinder (14) is fixedly connected to the horizontal arm plate (13) at the upper position. The horizontal arm plate (13) at the lower position is fixedly installed on the lower surface of the inner wall of the sliding frame (8). There are three support plates (15) inside the sliding frame (8). The support plate (15) at the upper position is fixedly installed on the lower surface of the horizontal arm plate (13) at the upper position. The two support plates (15) at the lower position are both fixedly installed on the lower surface of the horizontal arm plate (13) at the lower position. A sanding roller (16) is rotatably installed on the support plate (15). A drive motor (17) is fixedly installed on the side of the support plate (15) at the upper position. The output shaft of the drive motor (17) is fixedly connected to the sanding roller (16) at the upper position. A baffle (26) is fixedly installed on the surface of the frame (1).
2. The fuel injector inner wall smoothing treatment equipment according to claim 1, characterized in that: A guide rod (18) is slidably mounted on the support plate (2), and the end of the guide rod (18) is fixedly connected to the side of the push plate (4).
3. The fuel injector inner wall smoothing treatment equipment according to claim 1, characterized in that: The push plate (4) has a sliding groove on its side, and the mounting plate (5) has a sliding block (19) fixedly installed on its side. The sliding block (19) is slidably installed on the inner wall of the sliding groove, and a number of guide rods (20) are fixedly installed on the inner wall of the sliding groove. The sliding block (19) is slidably installed on the outer surface of the number of guide rods (20).
4. The fuel injector inner wall smoothing treatment equipment according to claim 1, characterized in that: A plurality of guide rods (23) are fixedly installed between the two fixed plates (9), and the threaded plate (12) is slidably installed on the outer surface of the plurality of guide rods (23).
5. The fuel injector inner wall smoothing treatment equipment according to claim 3, characterized in that: The sliding block (19) is fixedly installed with a fixing screw (21) on its side. The push plate (4) has a strip hole on its side that communicates with the sliding groove. The fixing screw (21) passes through the strip hole and is threaded with a fixing nut (22). The fixing nut (22) is attached to the side of the push plate (4).
6. The fuel injector inner wall smoothing treatment equipment according to claim 1, characterized in that: The inner wall of the sliding frame (8) is fixedly installed with a sliding strip (25), and the end of the cross arm plate (13) at the upper position is fixedly installed with a sliding seat (24). The sliding seat (24) is slidably installed on the outer surface of the sliding strip (25).