Laser measurement equipment for size of oil nozzle matching part

Abstract

The invention discloses oil nozzle matching part size laser measuring equipment, and relates to the field of laser measuring equipment, an electric driving rod part is installed on the outer side of a preset base body, a laser measuring instrument part is installed at the upper end of the preset base body, and size and diameter measurement processing is conducted on a borne workpiece through the laser measuring instrument part; a nesting bearing part is mounted on the outer side of the preset base body in a nesting mode, and an abutting butt joint part is in butt joint with the inner side of the nesting bearing part in a nesting mode. The oil nozzle matching part size laser measuring equipment is provided with the guide supply structure, the guide supply structure is used for carrying out pneumatic cleaning treatment on the laser measuring instrument part and the outer side of a workpiece to be detected, the detection precision of the laser measuring instrument part is guaranteed, and the oil nozzle matching part of a cylindrical structure is rapidly locked when the equipment is used for detecting the oil nozzle matching part; the oil nozzle matching parts can be accurately positioned and detected adaptively and quickly, and high efficiency and accuracy of laser detection can be guaranteed by matching with a pneumatic cleaning treatment mode.

Description

Technical Field

[0001] This invention relates to the field of laser measurement equipment technology, specifically to a laser measurement device for the dimensions of an oil injector assembly. Background Technology

[0002] Laser measuring equipment is an instrument that uses laser technology for non-contact measurement. By emitting a laser beam and receiving reflected light or interference signals, it can achieve high-precision measurement of parameters such as distance, angle, and displacement. It is used in the inspection of various precision components, including the laser measurement and processing of the dimensions of fuel injector assemblies. Fuel injector assemblies are key precision components in internal combustion engines that are responsible for fuel injection. They are the fuel injector itself (including the fuel head, core, and other structures). For example, patent CN210108276U discloses a fixture and method for detecting the orifice diameter of a diesel engine injector. The fixture includes a magnetic base plate and an injector support frame supported on the magnetic base plate. The injector support frame includes a horizontal base plate, a central clamping mechanism, and front and rear V-shaped plates respectively vertically fixed at both ends of the horizontal base plate. The injector hemispherical head at one end of the injector body is tilted downwards and supported on the front and rear V-shaped plates. The central clamping mechanism is located between the front and rear V-shaped plates, tilting and fixing the injector body onto the injector support frame. This utility model's detection fixture has a simple structure and is easy to adjust. For example, patent CN117629070B describes a laser measuring device, which includes a motion module, a laser probe, and an anti-collision device. The laser probe is equipped with the motion module, and the anti-collision device is installed on the laser probe. If a collision occurs, the internal circuit of the anti-collision device is broken, causing the laser measuring device to stop or perform a safety action. During the debugging, calibration, and operation of the laser measuring device, if a collision occurs, the internal circuit of the anti-collision device is broken, causing the laser measuring device to stop or perform a safety action. In this way, damage to the laser measuring device due to collision is prevented during the debugging, calibration, and operation of the laser measuring device. For example, the patented needle valve body high-pressure chamber depth detection device with publication number CN205403676U includes a measuring head seat, a dial indicator, a fixed measuring head, and a sliding measuring head. The left end of the measuring head seat is a hand-held part, and its right end is provided with a through hole. A measuring head ring is provided in the through hole. The dial indicator passes through the tightening ring and is located on the upper part of the through hole of the measuring head ring. The lower part of the through hole of the measuring head ring is fixedly connected to the fixed measuring head. The sliding measuring head passes through the fixed measuring head. A spring seat is fixedly connected to the upper end of the sliding measuring head. A spring is provided between the spring seat and the tightening ring. The device is easy to operate and takes less time to detect. The sliding measuring head is pressed by the spring to the bottom of the high-pressure chamber of the needle valve body to complete the detection of the high-pressure chamber, thereby effectively controlling the volume of the high-pressure chamber of the fuel injector assembly. Most of the existing technologies mentioned above improve the overall structure. However, the existing laser measurement equipment for fuel injector assembly dimensions has a cumbersome locking method for cylindrical fuel injector assemblies during operation. It cannot adaptively and quickly perform accurate positioning and detection of fuel injector assemblies, and cannot guarantee the high efficiency and accuracy of laser detection, thus having certain limitations in use. Summary of the Invention

[0003] The purpose of this invention is to provide a laser measurement device for the dimensions of fuel injector components, in order to solve the problems mentioned in the background art, such as the cumbersome locking method for cylindrical fuel injector components, the inability to adaptively and quickly perform accurate positioning and detection of fuel injector components, and the inability to guarantee the high efficiency and accuracy of laser detection.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a laser measuring device for the dimensions of a fuel injector assembly, comprising a preset base, an electric drive rod component mounted on the outer side of the preset base, and a laser measuring instrument component mounted on the upper end of the preset base, wherein the laser measuring instrument component measures the diameter of the workpiece it carries; a nested support component is nested on the outer side of the preset base, and an abutment component is nested and connected to the inner side of the nested support component, and a reserved air cavity is provided on the inner side of the nested support component; a guiding supply structure is provided between the reserved air cavity and the nested support component, and the guiding supply structure pneumatically cleans the outer side of the laser measuring instrument component and the workpiece to be inspected, thereby ensuring the detection accuracy of the laser measuring instrument component.

[0005] Furthermore, the guiding supply structure is provided with a movable docking piston, which is fixedly docked to the outside of the contact docking member, and the movable docking piston is located inside the reserved air cavity. A first return spring is fixedly connected to the outside of the movable docking piston, and the first return spring is docked to the inside of the nested bearing member.

[0006] Furthermore, a reserved through hole is provided at the lower end of the reserved air cavity, and the reserved through hole extends along the inner side of the nested support member. An external first docking air pipe is provided through the inner side of the reserved air cavity, and the external first docking air pipe extends along the inner side of the nested support member. An external second docking air pipe is docked to the outer side of the external first docking air pipe.

[0007] Furthermore, when the contacting docking member is pressed, it drives the movable docking piston member to move synchronously along the inner side of the reserved air cavity. When the movable docking piston member moves to the side away from the reserved through hole, the inner side of the reserved air cavity is in a closed state, and the reserved air cavity is supplied with air to the outside through the external first docking air pipe.

[0008] Furthermore, the external first docking air tube and the external second docking air tube are an integrated structure, and the external first docking air tube and the external second docking air tube are oriented in opposite directions. The outer end length of the external second docking air tube is greater than the outer end length of the external first docking air tube.

[0009] Furthermore, an auxiliary locking structure is provided on the inner side of the nested support member, which self-locks the contacting workpieces. The auxiliary locking structure is provided with a non-contacting nesting pre-reserved member, which is nested and docked to the inner side of the nested support member. A docking steel wire rope component is docked to the outer side of the non-contacting nesting pre-reserved member, and the docking steel wire rope component passes through the inner side of the nested support member. The end of the docking steel wire rope component docks with the outer side of the movable docking piston component.

[0010] Furthermore, a limiting docking elastic element is nested inside the nested support member, and a second return spring is fixedly connected to the lower end of the limiting docking elastic element. The second return spring docks with the inner side of the nested support member, and the outer side of the limiting docking elastic element corresponds to the outer side of the abutting nested reserved member.

[0011] Furthermore, the movable docking piston component forms a traction structure with the abutting nesting reserved component through the docking wire rope component, and the abutting nesting reserved component moves laterally along the inner side of the nesting bearing component.

[0012] Furthermore, when the outer side of the abutting nested reserved member moves to contact the inclined surface of the limiting docking elastic member, the force-bearing limiting docking elastic member forms an outward sliding structure along the inner side of the nested bearing member, and the limiting docking elastic member and the nested bearing member form an elastic support structure through the second reset spring.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This laser measurement device for fuel injector assembly dimensions is equipped with a guiding supply structure. This structure pneumatically cleans the outer surfaces of the laser measuring instrument components and the workpiece to be inspected, ensuring the accuracy of the laser measuring instrument components. As the fuel injector assembly is subjected to force and continuously displaces along the inner side of the nested support component, the contacting docking component on its inner side drives the movable docking piston component to move synchronously along the inner side of the reserved air cavity. When the movable docking piston component moves to the side away from the reserved through hole, the reserved air cavity, in a closed state, works in conjunction with the continuously pressurized movable docking piston component to supply air outward through the external first docking air pipe. This process thoroughly removes impurities from the surface of the workpiece at the contact limit, preventing any impact on the subsequent laser inspection accuracy. When inspecting cylindrical fuel injector assemblies, the device achieves rapid locking while adaptively and quickly performing precise positioning and inspection of the fuel injector assembly. Combined with its pneumatic cleaning method, this ensures the high efficiency and accuracy of laser inspection. Furthermore, as the reserved air cavity pneumatically supplies impurities to the surface of the workpiece through the external first docking air pipe for impurity removal, the external second docking air pipe, which is integrated with the external first docking air pipe, will also supply airflow. The external second docking air pipe will then perform contact pneumatic cleaning below the detection end of the contacting laser measuring instrument component, thereby ensuring the detection accuracy of the laser measuring instrument component and avoiding the adverse phenomenon of impurities affecting the laser detection accuracy when detecting in environments with many impurities, such as factory buildings, thus ensuring the overall detection quality. Furthermore, an auxiliary locking structure is provided. The auxiliary locking structure can self-lock the contacting workpieces. During the process of the moving docking piston moving inward under force, the docking steel wire rope component docking on its outer side will be stressed accordingly, thereby driving the end-connected abutting nesting reserved component to move in position. When the abutting nesting reserved component moves to the inclined position of the limiting docking elastic component, the stressed limiting docking elastic component slides along the inner side of the nesting bearing component, thereby adaptively locking the contacting workpieces. Furthermore, through the nested carrier, the user can rotate the nested carrier, which has locked the workpiece, along the outside of the preset base and along the outside of the output end support component of the electric drive rod component. This allows the laser measuring instrument to perform dimension and diameter detection on the workpiece locked inside the nested carrier without any blind spots, ensuring high detection efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the pre-designed substrate of the present invention; Figure 3 This is a schematic diagram of the half-section three-dimensional structure of the present invention; Figure 4 This is a schematic diagram of the half-section three-dimensional structure of the nested support component of the present invention; Figure 5 For the present invention Figure 4 A magnified schematic diagram of the central part of the structure; Figure 6 This is a half-section three-dimensional structural diagram of the movable docking piston component of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the external second docking air tube of the present invention; Figure 8 This is a three-dimensional structural diagram of the limiting and docking elastic element of the present invention; Figure 9 This is a schematic diagram of the three-dimensional structure of the external first docking air tube of the present invention.

[0015] In the diagram: 1. Pre-set base; 2. Electric drive rod component; 3. Laser measuring instrument component; 4. Nested support component; 5. Abutting docking component; 6. Movable docking piston component; 7. First return spring; 8. Reserved air cavity; 9. Reserved through hole; 10. External first docking air pipe; 11. External second docking air pipe; 12. Abutting nested reserved component; 13. Docking steel wire rope component; 14. Limiting docking elastic component; 15. Second return spring. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Example 1: Please refer to Figures 1-9 This invention provides the following technical solution: a laser measuring device for the dimensions of a fuel injector assembly. To address the problems of cumbersome locking methods for cylindrical fuel injector assemblies, which hinder rapid and accurate positioning and detection, and also compromise the efficiency and accuracy of laser detection, the device discloses a configuration including a preset base 1 with an electric drive rod component 2 mounted on its outer side, and a laser measuring instrument component 3 mounted on its upper end. The laser measuring instrument component 3 measures the diameter of the workpiece it supports. A nested support component 4 is nested on the outer side of the preset base 1, and an abutment component 5 is nested and connected to the inner side of the nested support component 4. A reserved air cavity 8 is provided on the inner side of the nested support component 4, and a guide supply structure is provided between the reserved air cavity 8 and the nested support component 4. This guide supply structure pneumatically cleans the laser measuring instrument component 3 and the outer side of the workpiece to be inspected, ensuring the detection accuracy of the laser measuring instrument component 3.

[0018] The guiding supply structure is equipped with a movable docking piston 6, which is fixedly docked to the outside of the contact docking member 5. The movable docking piston 6 is located inside the reserved air cavity 8. A first return spring 7 is fixedly connected to the outside of the movable docking piston 6, and the first return spring 7 is docked with the inside of the nested support member 4. A reserved through hole 9 is provided at the lower end of the reserved air cavity 8, and the reserved through hole 9 passes through the inside of the nested support member 4. An external first docking air pipe 10 is provided through the inside of the reserved air cavity 8, and the external first docking air pipe 10 passes through the inside of the nested support member 4. An external second docking air pipe 11 is connected to the outer side of pipe 10. When the contact docking part 5 is pressed, it drives the movable docking piston part 6 to move synchronously along the inner side of the reserved air cavity 8. When the movable docking piston part 6 moves to the side away from the reserved through hole 9, the inner side of the reserved air cavity 8 is in a closed state. The reserved air cavity 8 is supplied with air through the external first docking air pipe 10. The external first docking air pipe 10 and the external second docking air pipe 11 are an integrated structure, and the external first docking air pipe 10 and the external second docking air pipe 11 are oriented in opposite directions. The outer end length of the external second docking air pipe 11 is greater than that of the external first docking air pipe 10. After placing the injector assembly to be tested inside the nested support 4, the electric drive rod 2 pushes the limiting component at its output end to contact the end of the workpiece. As the injector assembly is subjected to force and continuously displaces along the inner side of the nested support 4, the contacting mating component 5 on its inner side will drive the movable docking piston 6 to move synchronously along the inner side of the reserved air chamber 8. Thus, when the movable docking piston 6 moves to the side away from the reserved through hole 9, the reserved air chamber 8, which is in a closed state, cooperates with the continuously pressurized movable docking piston 6 to supply air to the outside through the external first docking air pipe 10, thereby limiting the contact. The workpiece surface is thoroughly cleaned of impurities to avoid affecting the accuracy of subsequent laser detection. As the reserved air cavity 8 pneumatically supplies impurities to the workpiece surface through the external first docking air pipe 10, the external second docking air pipe 11, which is integrated with the external first docking air pipe 10, will also supply airflow. The external second docking air pipe 11 will then perform contact pneumatic cleaning below the detection end of the laser measuring instrument component 3, thereby ensuring the detection accuracy of the laser measuring instrument component 3 and avoiding the adverse phenomenon of impurities affecting the laser detection accuracy when detecting in environments with many impurities, such as factory buildings.

[0019] Example 2: Based on Example 1, an auxiliary locking structure is also disclosed, the specific structure of which is as follows: An auxiliary locking structure is provided on the inner side of the nested carrier 4, which can be used to self-lock the contacting workpieces. The auxiliary locking structure is provided with a mating nesting pre-reserved part 12, which is nested and connected to the inner side of the nested support part 4. A connecting wire rope component 13 is connected to the outer side of the mating nesting pre-reserved part 12, and the connecting wire rope component 13 passes through the inner side of the nested support part 4. The end of the connecting wire rope component 13 is connected to the outer side of the movable connecting piston part 6. A limiting connecting elastic component 14 is nested and installed on the inner side of the nested support part 4, and a second return spring 15 is fixedly connected to the lower end of the limiting connecting elastic component 14. The second return spring 15 is connected to the inner side of the nested support part 4. The outer side of the limiting connecting elastic component 14 corresponds to the outer side of the mating nesting pre-reserved part 12. The movable connecting piston part 6 forms a traction structure with the mating nesting pre-reserved part 12 through the connecting wire rope component 13. The mating nesting pre-reserved part 12 moves laterally along the inner side of the nested support part 4, and the outer side of the mating nesting pre-reserved part 12 moves to contact the inclined surface of the limiting connecting elastic component 14. When the force is applied, the limiting docking elastic member 14 forms an outward sliding structure along the inner side of the nested support member 4. The limiting docking elastic member 14 and the nested support member 4 form an elastic support structure through the second return spring 15. During the process of the movable docking piston member 6 moving inward under force, the docking steel wire rope member 13 docked on its outer side will be subjected to force, thereby driving the end-connected abutting nesting reserved member 12 to move in position. When the abutting nesting reserved member 12 with lateral displacement moves to contact the inclined surface position of the limiting docking elastic member 14, the force-applied limiting docking elastic member 14 slides along the inner side of the nested support member 4, thereby adaptively locking the contacting workpiece. Through the nested nested support member 4, the user can rotate the nested support member 4 after locking the workpiece along the outer side of the preset base 1 along the output end support member of the electric drive rod member 2, thereby cooperating with the laser measuring instrument member 3 to perform no-dead-angle detection of the workpiece locked inside the nested support member 4, such as the diameter.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser measuring device for measuring the dimensions of a fuel injector assembly, comprising a preset base (1), an electric drive rod component (2) installed on the outer side of the preset base (1), and a laser measuring instrument component (3) installed on the upper end of the preset base (1), wherein the laser measuring instrument component (3) is used to measure the diameter of the workpiece being carried. Its features are: The outer side of the preset base (1) is nested with a nested support member (4), and the inner side of the nested support member (4) is nested with a mating member (5). A reserved air cavity (8) is opened on the inner side of the nested support member (4). A guide supply structure is provided between the reserved air cavity (8) and the nested support member (4). The guide supply structure is used to pneumatically clean the outer side of the laser measuring instrument component (3) and the workpiece to be tested, so as to ensure the detection accuracy of the laser measuring instrument component (3).

2. The laser measuring device for the dimensions of a fuel injector assembly according to claim 1, characterized in that: The guiding supply structure is provided with a movable docking piston (6), and the movable docking piston (6) is fixedly docked on the outside of the abutting docking member (5). The movable docking piston (6) is located on the inside of the reserved air cavity (8). A first reset spring (7) is fixedly connected to the outside of the movable docking piston (6), and the first reset spring (7) is docked with the inside of the nested bearing member (4).

3. The laser measuring device for the dimensions of a fuel injector assembly according to claim 2, characterized in that: The lower end of the reserved air cavity (8) is provided with a reserved through hole (9), and the reserved through hole (9) passes through the inner side of the nested support member (4). An external first docking air pipe (10) is provided through the inner side of the reserved air cavity (8), and the external first docking air pipe (10) passes through the inner side of the nested support member (4). An external second docking air pipe (11) is docked to the outer side of the external first docking air pipe (10).

4. The laser measuring device for the dimensions of a fuel injector assembly according to claim 3, characterized in that: When the contacting docking part (5) is pressed, it drives the movable docking piston part (6) to move synchronously along the inner side of the reserved air cavity (8). When the movable docking piston part (6) moves to the side away from the reserved through hole (9), the inner side of the reserved air cavity (8) is in a closed state. The reserved air cavity (8) is supplied with air to the outside through the external first docking air pipe (10).

5. The laser measuring device for the dimensions of a fuel injector assembly according to claim 4, characterized in that: The external first docking air tube (10) and the external second docking air tube (11) are an integrated structure, and the external first docking air tube (10) and the external second docking air tube (11) are oriented in opposite directions. The outer end length of the external second docking air tube (11) is greater than the outer end length of the external first docking air tube (10).

6. The laser measuring device for the dimensions of a fuel injector assembly according to claim 3, characterized in that: An auxiliary locking structure is provided on the inner side of the nested support member (4), which can be used to self-lock the contacting workpieces. The auxiliary locking structure is provided with a repulsive nesting reserved part (12), and the repulsive nesting reserved part (12) is nested and connected to the inner side of the nested bearing part (4). The outer side of the repulsive nesting reserved part (12) is connected to a connecting steel wire rope component (13), and the connecting steel wire rope component (13) passes through the inner side of the nested bearing part (4). The end of the connecting steel wire rope component (13) is connected to the outer side of the movable connecting piston component (6).

7. The laser measuring device for the dimensions of a fuel injector assembly according to claim 6, characterized in that: The inner side of the nested support member (4) is fitted with a limiting docking elastic member (14), and the lower end of the limiting docking elastic member (14) is fixedly connected with a second reset spring (15). The second reset spring (15) docks with the inner side of the nested support member (4), and the outer side of the limiting docking elastic member (14) corresponds to the outer side of the abutting nested reserved member (12).

8. The laser measuring device for the dimensions of a fuel injector assembly according to claim 7, characterized in that: The movable docking piston (6) forms a traction structure with the abutting nesting reserved part (12) through the docking wire rope part (13), and the abutting nesting reserved part (12) moves laterally along the inner side of the nesting bearing part (4).

9. The laser measuring device for the dimensions of a fuel injector assembly according to claim 8, characterized in that: When the outer side of the abutting nesting reserved part (12) moves to contact the inclined surface of the limiting docking elastic part (14), the force-bearing limiting docking elastic part (14) forms an outward sliding structure along the inner side of the nesting bearing part (4), and the limiting docking elastic part (14) and the nesting bearing part (4) form an elastic support structure through the second reset spring (15).

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