A kind of opening device for fuel injector processing

CN224927461UActive Publication Date: 2026-11-03ZHEJIANG HUICHANG AUTO PARTS CO LTD
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Patent Information

Application Number
CN202521986775.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-16
Publication Date
2026-11-03
Estimated Expiration
2035-09-16

AI Technical Summary

Technical Problem

The existing nozzle-making device has poor clamping performance, cannot be adapted to nozzles of different sizes, has poor clamping stability, and insufficient processing adjustment accuracy, which affects the nozzle-making quality and efficiency.

Method used

The design employs a contact arc plate with gear transmission, inclined groove, and sliding column, combined with slide rail, electric slider, and telescopic air rod to achieve rapid and stable clamping of the injector and precise drilling. The drilling position and depth can be flexibly adjusted by a servo motor-driven gear system.

Benefits of technology

It improves the clamping efficiency and versatility of injector hole drilling, ensures the accuracy and consistency of drilling position and depth, and enhances the overall processing quality and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of trepanning devices for oil atomizer processing, it is related to oil atomizer processing technical field, and the utility model includes bottom plate, the top of bottom plate is equipped with multiple contact arc plates, the top of bottom plate is equipped with bracket and L-shaped plate, the upper end of bracket is fixedly equipped with slide rail in both sides, the upper end of slide rail is slidably equipped with electric sliding block, the upper end of two electric sliding blocks is jointly connected with moving plate by bolt cooperation, the lower end of moving plate is fixedly equipped with support block, the lower end of support block is fixedly equipped with two telescopic air rods, a kind of trepanning devices for oil atomizer processing provided by the utility model, synchronous movement of contact arc plate is realized by gear transmission and chute, slide column cooperation, different size oil atomizer is quickly and stably clamped, and clamping efficiency and versatility are improved;Slide rail and electric sliding block make drilling position adjustment flexible, support block and sliding groove enhance stability, ensure accuracy;Telescopic air rod accurately controls drilling depth, overall structure is compact, improves processing efficiency and quality.
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Description

Technical Field

[0001] This utility model relates to the field of fuel injector processing technology, specifically to a hole-opening device for fuel injector processing. Background Technology

[0002] The function of a car fuel injector is to inject fuel into the combustion chamber at a certain pressure, speed and direction, so that the fuel is atomized into fine particles and properly distributed in the combustion chamber to facilitate the formation and combustion of the air-fuel mixture. It is an indispensable and important component in a car.

[0003] However, existing technologies still have the following problems:

[0004] Existing nozzle-making opening devices mostly have poor clamping performance, often using manual clamping or fixed-size fixtures, which cannot be adapted to nozzles of different sizes. Clamping is time-consuming, inefficient, and has poor clamping stability, making it easy for nozzle shaking to affect the opening quality.

[0005] Furthermore, most devices lack sufficient processing and adjustment precision, rely on manual adjustment of the hole position, lack flexible sliding adjustment structures, and have no stable guide support, resulting in low positional accuracy; drilling depth control relies heavily on experience, lacks precise drive components, and has poor depth consistency, thus reducing overall processing efficiency and quality.

[0006] To address the aforementioned problems, the inventors have proposed an injection nozzle drilling device to solve these issues. Utility Model Content

[0007] In order to solve the problems of poor clamping performance and insufficient machining adjustment accuracy, the purpose of this utility model is to provide a hole-opening device for fuel injector machining.

[0008] To solve the above technical problems, the present invention adopts the following technical solution: a hole-opening device for injector processing, comprising a base plate, a plurality of contact arc plates above the base plate, a bracket and an L-shaped plate above the base plate, slide rails fixed on both sides of the upper end of the bracket, an electric slider slidably mounted on the upper end of the slide rail, a moving plate connected to the upper ends of two electric sliders by bolts, a support block fixed on the lower end of the moving plate, two telescopic air rods fixed on the lower end of the support block, a mounting plate fixed on the lower ends of the two telescopic air rods, a DC motor fixed on one side of the L-shaped plate, and a drill bit fixedly mounted on the output end of the DC motor through the L-shaped plate.

[0009] Preferably, a vertical plate is fixedly provided on one side of the upper end of the base plate, and a disc is fixedly provided on the inner end of the vertical plate. A drive gear and a driven gear are rotatably provided on one end of the disc. A servo motor is provided on one end of the vertical plate. The output end of the servo motor passes through the vertical plate and the disc and is fixedly connected to the drive gear. The outer surfaces of the drive gear and the driven gear are meshed with each other. Six through-type annularly distributed inclined grooves are opened on one end of the driven gear. A sliding column is slidably provided in the inclined groove. A connecting rod is fixedly provided on one end of the sliding column. The outer end of the connecting rod is fixedly connected to the contact arc plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This invention utilizes gear transmission in conjunction with a slanted groove and sliding column to achieve synchronous movement of the contact arc plate, enabling rapid and stable clamping of injectors of different sizes, thus improving clamping efficiency and versatility. The cooperation between the slide rail and the electric slider allows for flexible adjustment of the drilling position, while the design of the support block and slide groove enhances the stability of the movement process and ensures drilling accuracy. The telescopic air rod allows for precise control of the drilling depth. The overall structure is compact, and the coordinated work of all components effectively improves the efficiency and quality of injector drilling. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a cross-sectional view and exploded view of part of the structure of the bracket of this utility model.

[0015] Figure 3 This is an exploded view of the vertical plate connection part of this utility model.

[0016] In the diagram: 1. Base plate; 2. Bracket; 21. Slide rail; 22. Electric slider; 23. Moving plate; 24. Support block; 25. Telescopic pneumatic rod; 26. Mounting plate; 28. Slide groove; 29. ​​Limiting block; 210. Support rod; 3. L-shaped plate; 31. DC motor; 32. Drill bit; 4. Contact arc plate; 41. Vertical plate; 42. Disc; 43. Servo motor; 44. Drive gear; 45. Driven gear; 46. Inclined groove; 47. Sliding column; 48. Connecting rod; 49. Groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example: Figure 1-3 As shown, this utility model provides a hole-opening device for fuel injector processing, including a base plate 1. Multiple contact arc plates 4 are provided above the base plate 1. A bracket 2 and an L-shaped plate 3 are provided above the base plate 1. Slide rails 21 are fixedly installed on both sides of the upper end of the bracket 2. Electric sliders 22 are slidably installed on the upper ends of the slide rails 21. A moving plate 23 is bolted to the upper ends of the two electric sliders 22. A support block 24 is fixedly installed at the lower end of the moving plate 23. Two telescopic air rods 25 are fixedly installed at the lower end of the support block 24. A mounting plate 26 is fixedly installed at the lower ends of the two telescopic air rods 25. A DC motor 31 is fixedly installed on one side of the L-shaped plate 3, and the output end of the DC motor 31 passes through the L-shaped plate 3 and is fixedly fitted with a drill bit 32. A groove 28 is opened at the upper end of the bracket 2, and the two ends of the support block 24 are respectively connected to the groove 28. The inner walls on both sides are in contact with each other. Both ends of the slide rail 21 are fixed with limiting blocks 29. Four support rods 210 are fixed between the bracket 2 and the base plate 1. The four support rods 210 are arranged in a rectangular shape. After clamping, the electric slider 22 is adjusted to slide on the slide rails 21 on both sides of the upper end of the bracket 2, which drives the moving plate 23 to move to a suitable position. The limiting blocks 29 at both ends of the slide rail 21 can prevent the electric slider 22 from slipping. The support block 24 at the lower end of the moving plate 23 slides along the slide groove 28 at the upper end of the bracket 2 to enhance stability. Then, the telescopic air rod 25 is activated to push the mounting plate 26 down. At the same time, the DC motor 31 on one side of the L-shaped plate 3 is activated. Its output end drives the drill bit 32 to rotate at high speed to perform drilling on the injector. The four rectangular support rods 210 between the bracket 2 and the base plate 1 play the role of stabilizing and supporting the entire device.

[0019] A vertical plate 41 is fixedly mounted on one side of the upper end of the base plate 1. A disc 42 is fixedly mounted on the inner end of the vertical plate 41. A drive gear 44 and a driven gear 45 are rotatably mounted on one end of the disc 42. A servo motor 43 is mounted on one end of the vertical plate 41. The output end of the servo motor 43 passes through the vertical plate 41 and the disc 42 and is fixedly connected to the drive gear 44. The outer surfaces of the drive gear 44 and the driven gear 45 are meshed with each other. Six through-type annularly distributed inclined slots 46 are opened on one end of the driven gear 45. A sliding column 47 is slidably mounted in the inclined slots 46. A connecting rod 48 is fixedly mounted on one end of the sliding column 47. The outer end of the connecting rod 48 is fixedly connected to a contact arc plate 4. There are six contact arc plates 4, which are arranged in annularly. The radius of the driven gear 45 is twice the radius of the drive gear 44. The outer end of the disc 42 has six through-type annularly distributed inclined slots 46. The six connecting rods 48 are arranged in a ring, and their outer surfaces are in contact with the inner walls of the six grooves 49. The injector to be processed is placed above the base plate 1. The servo motor 43 at one end of the vertical plate 41 is started. Its output end passes through the vertical plate 41 and the disc 42 and drives the drive gear 44 to rotate. Since the drive gear 44 meshes with the driven gear 45 and the radius of the driven gear 45 is twice that of the drive gear 44, the driven gear 45 rotates synchronously with the drive gear 44. The six annularly distributed inclined grooves 46 at one end of the driven gear 45 rotate accordingly, causing the sliding column 47 in the inclined groove 46 to slide along the inclined groove 46, thereby driving the connecting rod 48 fixed to the sliding column 47 to move. Since the connecting rod 48 moves in the grooves 49 of the disc 42, the direction of movement is restricted, and finally the six contact arc plates 4 move synchronously inward or outward, realizing the clamping or loosening of the injector.

[0020] Working principle: The injector to be processed is placed above the base plate 1. The servo motor 43 at one end of the vertical plate 41 is started. Its output end passes through the vertical plate 41 and the disc 42 and drives the drive gear 44 to rotate. Since the drive gear 44 meshes with the driven gear 45 and the radius of the driven gear 45 is twice that of the drive gear 44, the driven gear 45 rotates synchronously with the drive gear 44. The six annularly distributed inclined grooves 46 at one end of the driven gear 45 rotate accordingly, causing the sliding column 47 in the inclined groove 46 to slide along the inclined groove 46, thereby driving the connecting rod 48 fixed to the sliding column 47 to move. Since the connecting rod 48 moves in the groove 49 of the disc 42, the direction of movement is restricted, and finally the six contact arc plates 4 move synchronously inward or outward to achieve clamping or loosening of the injector.

[0021] After clamping, adjust the electric slider 22 to slide on the slide rails 21 on both sides of the upper end of the bracket 2, and drive the moving plate 23 to move to the appropriate position. The limiting blocks 29 at both ends of the slide rails 21 can prevent the electric slider 22 from slipping. The support block 24 at the lower end of the moving plate 23 slides along the slide groove 28 at the upper end of the bracket 2 to enhance stability. Then, start the telescopic air rod 25 to push the mounting plate 26 down. At the same time, start the DC motor 31 on one side of the L-shaped plate 3. Its output end drives the drill bit 32 to rotate at high speed to perform drilling on the injector. The four rectangular distributed support rods 210 between the bracket 2 and the base plate 1 play the role of stabilizing and supporting the entire device.

[0022] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A hole-opening device for injector processing, comprising a base plate (1), characterized in that: The base plate (1) is provided with multiple contact arc plates (4) above it. The base plate (1) is provided with a bracket (2) and an L-shaped plate (3) above it. The upper ends of the bracket (2) are fixed with slide rails (21). The upper ends of the slide rails (21) are slidably provided with electric sliders (22). The upper ends of the two electric sliders (22) are connected to a moving plate (23) by bolts. The lower end of the moving plate (23) is fixed with a support block (24). The lower end of the support block (24) is fixed with two telescopic air rods (25). The lower ends of the two telescopic air rods (25) are fixed with a mounting plate (26). A DC motor (31) is fixed on one side of the L-shaped plate (3), and the output end of the DC motor (31) passes through the L-shaped plate (3) and is fixed with a drill bit (32).

2. The nozzle-opening device for injector processing as described in claim 1, characterized in that: A vertical plate (41) is fixedly provided on one side of the upper end of the base plate (1). A disc (42) is fixedly provided on the inner end of the vertical plate (41). A drive gear (44) and a driven gear (45) are rotatably provided on one end of the disc (42). A servo motor (43) is provided on one end of the vertical plate (41). The output end of the servo motor (43) passes through the vertical plate (41) and the disc (42) and is fixedly connected to the drive gear (44). The outer surfaces of the drive gear (44) and the driven gear (45) are meshed with each other. Six through-type annularly distributed inclined grooves (46) are provided on one end of the driven gear (45). A sliding column (47) is slidably provided in the inclined groove (46). A connecting rod (48) is fixedly provided on one end of the sliding column (47). The outer end of the connecting rod (48) is fixedly connected to the contact arc plate (4).

3. The nozzle-opening device for injector processing as described in claim 1, characterized in that: The upper end of the bracket (2) is provided with a sliding groove (28), and the two ends of the support block (24) are in contact with the inner walls of the two sides of the sliding groove (28).

4. The nozzle-opening device for injector processing as described in claim 1, characterized in that: Both ends of the slide rail (21) are fixed with limiting blocks (29).

5. The nozzle-opening device for injector processing as described in claim 1, characterized in that: Four support rods (210) are fixed between the bracket (2) and the base plate (1), and the four support rods (210) are arranged in a rectangular shape.

6. The nozzle-opening device for injector processing as described in claim 1, characterized in that: The contact arc plate (4) is provided in six parts, and the six contact arc plates (4) are arranged in a ring.

7. The nozzle-opening device for injector processing as described in claim 2, characterized in that: The radius of the driven gear (45) is twice that of the drive gear (44).

8. The nozzle-opening device for injector processing as described in claim 2, characterized in that: The outer end of the disk (42) has six grooves (49) arranged in a ring, and the outer surfaces of the six connecting rods (48) are in contact with the inner walls of the six grooves (49).