A carburetor needle valve assembly device

Abstract

This utility model discloses a carburetor needle valve assembly equipment, including a rotary worktable, a valve body feeding device, a valve body cleaning device, a spring feeding device, a push rod feeding device, a positioning detection device, a riveting device, a spring force detection device, and a sorting and unloading device. The rotary worktable is equipped with multiple positioning fixtures, and the perimeter of the rotary worktable is sequentially arranged with a first station, a second station, a third station, a fourth station, a fifth station, a sixth station, a seventh station, and an eighth station. This utility model changes the existing manual assembly method for needle valves, adopting a circular arrangement of workstations. The various process mechanisms are distributed in a station-like manner, resulting in a compact overall structure, small footprint, and high assembly efficiency. Furthermore, it employs automatic feeding and automatic production, reducing manual labor intensity and labor costs. It has good intelligence, and the production cycle can be flexibly adjusted according to actual needs, making it suitable for current large-scale industrial production requirements.

Description

Technical Field

[0001] This utility model belongs to the field of needle valve assembly technology, specifically relating to a carburetor needle valve assembly device. Background Technology

[0002] A carburetor is a mechanical device that mixes gasoline and air in a specific ratio under the vacuum generated by the engine. As a precision mechanical device, the carburetor utilizes the kinetic energy of the intake airflow to atomize the gasoline. The carburetor automatically prepares and outputs the appropriate mixture concentration based on the engine's operating conditions. To ensure a relatively uniform mixture, the carburetor also atomizes the fuel for proper engine operation. Therefore, high precision is required in the positioning and installation of the carburetor components to guarantee effective fuel atomization through improved assembly quality.

[0003] During carburetor production, several components need to be assembled into the housing, such as the fuel balance pipe, transition ball plug, fuel inlet pipe, needle valve, and main air volume pipe. In the needle valve assembly process, current technologies mostly rely on manual assembly and riveting. Multiple parts are assembled and riveted manually in sequence, with manual loading. This poses a safety hazard, as operators' hands are easily crushed by the equipment. Furthermore, manual assembly lacks inspection processes, resulting in a high defect rate. Manual assembly is slow, requires highly skilled workers, and makes product quality difficult to control. Utility Model Content

[0004] The purpose of this invention is to provide a carburetor needle valve assembly device to solve the above-mentioned problems existing in the prior art.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a carburetor needle valve assembly device, comprising: A rotary worktable is provided with multiple positioning fixtures, and the circumference of the rotary worktable is provided with a first workstation, a second workstation, a third workstation, a fourth workstation, a fifth workstation, a sixth workstation, a seventh workstation, and an eighth workstation in sequence. A valve body feeding device is set at the first station to provide valve bodies and transport them to the positioning fixture. A valve body cleaning device is installed at the second work station and is used to clean the valve body on the positioning fixture. A spring feeding device, located at the third station, is used to provide springs and deliver them to the pinholes in the valve body. The push rod feeding device is located at the fourth station and is used to provide push rods and deliver them into the pinhole of the valve body; The positioning detection device is located at the fifth station and is used to detect whether the top rod is installed in place. The riveting device, located at the sixth station, is used to rivet the open end of the pin hole to shrink it, thereby confining the push rod and spring within the pin hole of the valve body. The elasticity testing device, located at the seventh station, is used to check whether the needle valve is assembled correctly; and The sorting and unloading device is located at the eighth station and is used to remove the assembled needle valve from the positioning fixture.

[0006] As an optional embodiment of the above technical solution, the rotary worktable includes a rotary table, a support frame, and a rotary drive mechanism. The rotary table is rotatably mounted on the support frame, and the rotary drive mechanism is used to drive the rotary table to rotate relative to the support frame.

[0007] As an optional embodiment of the above technical solution, the valve body feeding device includes a valve body vibrating disc, a valve body distributor, and a valve body unloader. The valve body vibrating disc is used to store valve bodies. A valve body distribution pipe is provided between the valve body vibrating disc and the valve body distributor. A valve body unloader is provided between the valve body distributor and the valve body unloader. The valve body unloader is used to transport the valve body to the positioning fixture through the valve body unloader.

[0008] As an optional embodiment of the above technical solution, the valve body cleaning device includes a cleaning bracket, a burr removal mechanism, and an air blowing cleaning mechanism. Both the burr removal mechanism and the air blowing cleaning mechanism are mounted on the cleaning bracket. The burr removal mechanism is used to remove burrs from the pinholes of the valve body, and the air blowing cleaning mechanism is used to clean the valve body by blowing air.

[0009] As an optional implementation of the above technical solution, the burr removal mechanism includes a burr removal cylinder, a burr removal pressure head, and an anti-retraction paddle. The movable end of the burr removal cylinder is connected to the burr removal pressure head. The anti-retraction paddle has a through hole, and the burr removal pressure head can pass through the through hole of the anti-retraction paddle and extend into the pin hole of the valve body to remove the burrs in the pin hole of the valve body. The anti-retraction paddle is used to prevent the valve body from leaving the positioning fixture.

[0010] As an optional implementation of the above technical solution, the cleaning bracket is provided with a hole depth detection sensor, which is used to detect the pinhole depth of the valve body.

[0011] As an optional embodiment of the above technical solution, the spring feeding device includes a spring vibrating plate, a spring distributor, and a spring unloader. The spring vibrating plate is used to store springs. A spring distribution pipe is provided between the spring vibrating plate and the spring distributor. A spring unloader is provided between the spring distributor and the spring unloader. The spring unloader is used to transport the springs through the spring unloader to the pinhole of the valve body.

[0012] As an optional embodiment of the above technical solution, the push rod feeding device includes a push rod vibrating plate, a push rod distributor, and a push rod unloading device. The push rod vibrating plate is used to store push rods. A push rod distribution pipe is provided between the push rod vibrating plate and the push rod distributor. A push rod unloading pipe is provided between the push rod distributor and the push rod unloading device. The push rod unloading device is used to transport the push rods through the push rod unloading pipe to the pinhole of the valve body.

[0013] As an optional implementation of the above technical solution, the positioning detection device includes an assembly detection bracket, on which a detection sensor and a detection lever are provided. The detection sensor is used to detect the highest point of the valve body, spring and push rod after assembly; the detection lever is used to dislodge abnormal components that are not assembled in place and whose height exceeds the detection point.

[0014] As an optional embodiment of the above technical solution, the riveting device includes a riveting bracket, the bottom of which is provided with a support mechanism, which is located below the positioning fixture; the top of the riveting bracket is provided with a pressing mechanism, and one side of the riveting bracket is provided with an air blowing mechanism.

[0015] As an optional embodiment of the above technical solution, the elasticity detection device includes an elasticity detection bracket, the bottom of which is provided with an ejection mechanism, and the top of which is provided with an elasticity detection mechanism.

[0016] As an optional embodiment of the above technical solution, the ejection mechanism includes an ejection cylinder, and the movable end of the ejection cylinder is provided with an ejector pin; the elasticity detection mechanism includes an elasticity detection cylinder, an elasticity detection seat, a guide sleeve, a floating pin, and a pressure sensor, the movable end of the elasticity detection cylinder is connected to the elasticity detection seat, the guide sleeve is disposed on the elasticity detection seat, the floating pin is slidably engaged with the guide sleeve, and the pressure sensor is used to detect the pressure of the ejector rod on the floating pin.

[0017] As an optional implementation of the above technical solution, the sorting and unloading device includes a unloading bracket, a qualified unloading mechanism, and an unqualified unloading mechanism. Both the qualified unloading mechanism and the unqualified unloading mechanism are mounted on the unloading bracket. The qualified unloading mechanism is used to remove the assembled qualified needle valve from the positioning fixture, and the unqualified unloading mechanism is used to remove the assembled unqualified needle valve from the positioning fixture.

[0018] As an optional implementation of the above technical solution, both the qualified and unqualified feeding mechanisms include an upper cylinder, an upper fixed plate, an upper suction pipe, a lower cylinder, a lower blowing pipe, and a lower blowing nozzle. The movable end of the upper cylinder is connected to the upper fixed plate, and the upper suction pipe is installed on the upper fixed plate. The movable end of the lower cylinder is connected to the lower blowing pipe, and the end of the lower blowing pipe is connected to the lower blowing nozzle. The lower blowing nozzle is in sealed contact with the positioning fixture on the rotating worktable to blow the needle valve out from the positioning fixture.

[0019] The beneficial effects of this utility model are as follows: This invention changes the existing manual assembly method of needle valves. It adopts a circular workstation layout, with each process mechanism distributed in a station-style distribution. The overall structure is compact, occupies little space, and has high assembly efficiency. Moreover, it adopts automatic feeding and automatic production, which reduces the intensity of manual labor and reduces labor costs. It has good intelligence, and the production cycle can be flexibly adjusted according to actual needs, making it suitable for the current needs of large-scale industrial production. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a carburetor needle valve assembly device in one embodiment of this utility model; Figure 2 This is a schematic diagram of the structure of the rotating platform in one embodiment of the present invention; Figure 3 This is a schematic diagram of the layout structure of the positioning tooling in one embodiment of this utility model; Figure 4 This is a schematic diagram of the valve body feeding device in one embodiment of the present invention; Figure 5 This is a schematic diagram of the valve body cleaning device in one embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the spring feeding device and the top rod feeding device in one embodiment of this utility model; Figure 7 This is a schematic diagram of the positioning detection device in one embodiment of the present invention; Figure 8 This is a schematic diagram of the riveting device in one embodiment of the present invention; Figure 9 This is a schematic diagram of the elasticity detection device in one embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of the sorting and unloading device in one embodiment of this utility model; Figure 11 This is a schematic diagram of the positioning fixture and needle valve in one embodiment of this utility model.

[0021] In the diagram: 1-Rotary worktable; 2-Valve body feeding device; 3-Valve body cleaning device; 4-Spring feeding device; 5-Push rod feeding device; 6-Position detection device; 7-Riveting device; 8-Elasticity detection device; 9-Sorting and unloading device; 10-Positioning fixture. 101-Rotating table; 102-Support frame; 103-Rotating drive mechanism; 201-Valve body; 202-Valve body vibrating disc; 203-Valve body distributor; 204-Valve body feeder; 301-Cleaning bracket; 302-Air blowing cleaning mechanism; 303-Deburring cylinder; 304-Deburring pressure head; 305-Anti-reverse paddle; 306-Hole depth detection sensor; 401 - Spring; 402 - Spring vibratory feeder; 403 - Spring feeder; 404 - Spring unloader; 501-Top rod; 502-Top rod vibratory plate; 503-Top rod distributor; 504-Top rod feeder; 601 - Assembly and testing bracket; 602 - Testing sensor; 603 - Testing lever; 701-Riveting bracket; 702-Support mechanism; 703-Pressure fitting mechanism; 704-Air blowing mechanism; 801-Elasticity detection bracket; 802-Ejection cylinder; 803-Ejector pin; 804-Elasticity detection cylinder; 805-Elasticity detection seat; 806-Guide sleeve; 807-Floating pin; 808-Pressure sensor; 901 - Feeding bracket; 902 - Qualified feeding mechanism; 903 - Unqualified feeding mechanism; 904 - Upper cylinder; 905 - Upper fixing plate; 906 - Upper suction pipe; 907 - Lower cylinder; 908 - Lower blowing pipe; 909 - Lower blowing nozzle. Detailed Implementation

[0022] like Figures 1-11 As shown, this embodiment provides a carburetor needle valve assembly equipment, which includes a rotary worktable 1, a valve body feeding device 2, a valve body cleaning device 3, a spring feeding device 4, a push rod feeding device 5, a position detection device 6, a riveting device 7, a spring force detection device 8, and a sorting and unloading device 9. By assembling the valve body 201, the spring 401, and the push rod 501 together, a needle valve is obtained.

[0023] The rotary worktable 1 is equipped with multiple positioning fixtures 10, each with mounting holes adapted to the positioning fixtures 10. The positioning fixtures 10 are used to position the valve body 201 and have through holes connecting to the needle valve, facilitating needle valve assembly. The rotary worktable 1 is arranged in a ring around its perimeter, with a first, second, third, fourth, fifth, sixth, seventh, and eighth workstations arranged in a circular pattern to improve needle valve assembly efficiency and facilitate maintenance.

[0024] Specifically, the rotary worktable 1 includes a rotary table 101, a support frame 102, and a rotary drive mechanism 103. The rotary table 101 is rotatably mounted on the support frame 102. The rotary drive mechanism 103 is used to drive the rotary table 101 to rotate relative to the support frame 102, so that the positioning fixture 10 sequentially passes through the first station, the second station, the third station, the fourth station, the fifth station, the sixth station, the seventh station, and the eighth station to complete the corresponding operation procedures.

[0025] The valve body feeding device 2 is located at the first station and is used to provide valve bodies 201 and transport them to the positioning fixture 10. Specifically, the valve body feeding device 2 includes a valve body vibrating disc 202, a valve body distributor 203, and a valve body unloader 204. The valve body vibrating disc 202 is used to store valve bodies 201. A valve body distribution pipe is provided between the valve body vibrating disc 202 and the valve body distributor 203. A valve body unloading pipe is provided between the valve body distributor 203 and the valve body unloader 204. The valve body unloader 204 is used to transport the valve bodies 201 to the positioning fixture 10 through the valve body unloading pipe. The valve body 201 inside the valve body vibrating disc 202 is transported to the valve body distributor 203 through the valve body distribution pipe. The valve body distributor 203 transports the valve body 201 one by one to the valve body feeder 204 through the valve body discharge pipe. The valve body feeder 204 moves up and down with the end of the valve body discharge pipe, thereby transporting the valve body 201 to the positioning fixture 10.

[0026] The valve body cleaning device 3 is located at the second work station and is used to clean the valve body 201 on the positioning fixture 10. Specifically, the valve body cleaning device 3 includes a cleaning bracket 301, a burr removal mechanism, and an air blowing cleaning mechanism 302. Both the burr removal mechanism and the air blowing cleaning mechanism 302 are mounted on the cleaning bracket 301. The burr removal mechanism is used to remove burrs from the pinholes of the valve body 201, and the air blowing cleaning mechanism 302 is used to clean the valve body 201 with air. The burr removal mechanism includes a burr removal cylinder 303, a burr removal pressure head 304, and an anti-retraction paddle 305. The movable end of the burr removal cylinder 303 is connected to the burr removal pressure head 304. The anti-retraction paddle 305 has a through hole, allowing the burr removal pressure head 304 to pass through the through hole and extend into the pinhole of the valve body 201 to remove burrs from the pinhole of the valve body 201. The anti-retraction paddle 305 prevents the valve body 201 from leaving the positioning fixture 10. The cleaning bracket 301 is equipped with a hole depth detection sensor 306, which detects the depth of the pinhole in the valve body 201. When the burr removal cylinder 303 is activated, the burr removal pressure head 304 is pressed into the pinhole, removing burrs from the edge of the hole, while simultaneously detecting the depth of the pinhole. The anti-retraction paddle 305 prevents the burr removal pressure head 304 from retracting and pulling it out of the valve body 201. The cylinder of the air-blowing cleaning mechanism 302 is activated, causing the buffer air tube to press against the valve body 201 and then air to blow away burrs and dust.

[0027] A spring feeding device 4 is located at the third station and is used to provide springs 401 and transport them to the pinhole of the valve body 201. Specifically, the spring feeding device 4 includes a spring vibrating plate 402, a spring distributor 403, and a spring unloader 404. The spring vibrating plate 402 is used to store springs 401. A spring distribution pipe is provided between the spring vibrating plate 402 and the spring distributor 403. A spring unloader is provided between the spring distributor 403 and the spring unloader 404. The spring unloader 404 is used to transport springs 401 to the pinhole of the valve body 201 through the spring unloader pipe. Springs 401 in the spring vibrating plate 402 are transported to spring distributor 403 through spring distribution pipe. Spring distributor 403 transports springs 401 one by one to spring feeder 404 through spring discharge pipe. Spring feeder 404 moves up and down with the end of spring discharge pipe, thereby transporting springs 401 into the pinhole of valve body 201.

[0028] The push rod feeding device 5 is located at the fourth station and is used to provide push rods 501 and convey them into the pinhole of the valve body 201. Specifically, the push rod feeding device 5 includes a push rod vibrating plate 502, a push rod distributor 503, and a push rod unloader 504. The push rod vibrating plate 502 is used to store push rods 501. A push rod 501 distribution pipe is provided between the push rod vibrating plate 502 and the push rod distributor 503. A push rod 501 unloading pipe is provided between the push rod distributor 503 and the push rod unloader 504. The push rod unloader 504 is used to convey the push rods 501 into the pinhole of the valve body 201 through the push rod 501 unloading pipe. The push rod 501 inside the push rod vibrating plate 502 is transported to the push rod distributor 503 through the push rod 501 distribution pipe. The push rod distributor 503 transports the push rod 501 one by one through the push rod 501 discharge pipe to the push rod discharger 504. The push rod discharger 504 moves up and down with the end of the push rod 501 discharge pipe, thereby transporting the push rod 501 into the pinhole of the valve body 201.

[0029] A positioning detection device 6 is installed at the fifth station to detect whether the push rod 501 is installed in place. The positioning detection device 6 includes an assembly detection bracket 601, which is equipped with a detection sensor 602 and a detection lever 603. The detection sensor 602 detects the highest point of the assembled valve body 201, spring 401, and push rod 501 to determine whether the assembly is in place. The detection lever 603 is used to dislodge abnormal components that are not properly assembled and whose height exceeds the detection point, preventing false detection by the detection sensor 602. Defective valve bodies 201 detected here skip subsequent processes and are directly processed as defective materials.

[0030] The riveting device 7 is located at the sixth station and is used to rivet the open end of the pin hole to shrink it, thereby confining the push rod 501 and spring 401 within the pin hole of the valve body 201. Specifically, the riveting device 7 includes a riveting bracket 701, with a support mechanism 702 at its bottom, located below the positioning fixture 10; a pressing mechanism 703 is located at the top of the riveting bracket 701, and an air blowing mechanism 704 is located on one side of the riveting bracket 701. The pressing mechanism 703 uses a cylinder-driven pressing head structure. The pressing head moves downward, shrinking the open end of the pin hole, causing the push rod 501 to abut against and be confined within the pin hole with the spring 401. Simultaneously, the cylinder of the support mechanism 702 actuates, causing the support head to contact the rotating table 101, assisting in riveting and preventing deformation of the rotating table 101. After riveting, the air blowing mechanism 704 blows air to clean the pressing head, preventing dust particles from remaining.

[0031] The elasticity testing device 8 is located at the seventh station and is used to detect whether the needle valve is assembled correctly. Specifically, the elasticity testing device 8 includes an elasticity testing bracket 801, with an ejection mechanism at the bottom and an elasticity testing mechanism at the top. The ejection mechanism includes an ejection cylinder 802, with a ejector pin 803 at its movable end. The elasticity testing mechanism includes an elasticity testing cylinder 84, an elasticity testing seat 805, a guide sleeve 806, a floating pin 807, and a pressure sensor 808. The movable end of the elasticity testing cylinder 84 is connected to the elasticity testing seat 805. The guide sleeve 806 is mounted on the elasticity testing seat 805. The floating pin 807 slides with the guide sleeve 806. The pressure sensor 808 is used to detect the pressure of the ejector rod 501 on the floating pin 807. When the elasticity detection cylinder 04 is activated, the guide sleeve 806 covers the needle valve head, and the push rod 501 applies pressure to the floating pin 807. At this time, the floating pin 807 rises and squeezes the pressure sensor 808, obtaining the elasticity value. After the detection is completed, the ejector cylinder 802 is activated, causing the ejector pin 803 to rise and slightly lift the needle valve to prevent the needle valve from being stuck on the positioning fixture 10 due to riveting, which would affect subsequent air blowing and feeding.

[0032] The sorting and unloading device 9 is located at the eighth station and is used to remove the assembled needle valves from the positioning fixture 10. Specifically, the sorting and unloading device 9 includes a unloading bracket 901, a qualified unloading mechanism 902, and an unqualified unloading mechanism 903. Both the qualified unloading mechanism 902 and the unqualified unloading mechanism 903 are mounted on the unloading bracket 901. The qualified unloading mechanism 902 is used to remove the qualified needle valves from the positioning fixture 10, and the unqualified unloading mechanism 903 is used to remove the unqualified needle valves from the positioning fixture 10.

[0033] In this embodiment, both the qualified feeding mechanism 902 and the unqualified feeding mechanism 903 include an upper cylinder 904, an upper fixed plate 905, an upper suction pipe 906, a lower cylinder 907, a lower blowing pipe 908, and a lower blowing nozzle 909. The movable end of the upper cylinder 904 is connected to the upper fixed plate 905, and the upper suction pipe 906 is installed on the upper fixed plate 905. The movable end of the lower cylinder 907 is connected to the lower blowing pipe 908, and the end of the lower blowing pipe 908 is connected to the lower blowing nozzle 909. The lower blowing nozzle 909 is in sealed contact with the positioning fixture 10 on the rotating table 101 to blow the needle valve out from the positioning fixture 10. For qualified products, the upper cylinder 904 actuates to press down the upper suction pipe 906 to cover the needle valve, while the lower cylinder 907 actuates to press the lower blowing nozzle 909 against the rotating table 101. Once the two cylinders are in position, air is blown to transfer the qualified products to the collection box. For unqualified products, the unloading process is the same.

[0034] This invention changes the existing manual assembly method of needle valves. It adopts a circular workstation layout, with each process mechanism distributed in a station-style distribution. The overall structure is compact, occupies little space, and has high assembly efficiency. Moreover, it adopts automatic feeding and automatic production, which reduces the intensity of manual labor and reduces labor costs. It has good intelligence, and the production cycle can be flexibly adjusted according to actual needs, making it suitable for the current needs of large-scale industrial production.

[0035] In this description of the utility model, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. They can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model. Furthermore, the specific features and structures described in the embodiments are included in at least one implementation method. Those skilled in the art can combine features from different implementation methods without contradiction. The scope of protection of this utility model is not limited to the specific implementation methods described above. Based on the basic technical concept of this utility model, implementation methods that can be conceived by those skilled in the art without creative effort are all within the scope of protection of this utility model.

Claims

1. A carburetor needle valve assembly device, characterized in that, include: A rotary worktable (1) is provided with multiple positioning fixtures (10), and the circumference of the rotary worktable (1) is provided with a first station, a second station, a third station, a fourth station, a fifth station, a sixth station, a seventh station and an eighth station in sequence; The valve body feeding device (2) is set at the first station and is used to provide the valve body (201) and transport the valve body (201) to the positioning fixture (10); The valve body cleaning device (3) is set at the second station and is used to clean the valve body (201) on the positioning fixture (10); A spring feeding device (4) is set at the third station to provide springs (401) and deliver springs (401) to the pinhole of valve body (201); The push rod feeding device (5) is set at the fourth station to provide push rods (501) and convey push rods (501) into the pinhole of valve body (201); The positioning detection device (6) is set at the fifth station to detect whether the top rod (501) is installed in place; The riveting device (7) is set at the sixth station and is used to rivet the open end of the pin hole to shrink it, thereby restricting the push rod (501) and the spring (401) in the pin hole of the valve body (201); The elasticity testing device (8), located at the seventh station, is used to test whether the needle valve is assembled correctly; and The sorting and unloading device (9) is set at the eighth station and is used to remove the assembled needle valve from the positioning fixture (10) for unloading.

2. The carburetor needle valve assembly equipment according to claim 1, characterized in that, The rotary worktable (1) includes a rotary table (101), a support frame (102) and a rotary drive mechanism (103). The rotary table (101) is rotatably mounted on the support frame (102), and the rotary drive mechanism (103) is used to drive the rotary table (101) to rotate relative to the support frame (102).

3. The carburetor needle valve assembly equipment according to claim 1, characterized in that, The valve body feeding device (2) includes a valve body vibrating disc (202), a valve body distributor (203), and a valve body unloader (204). The valve body vibrating disc (202) is used to store the valve body (201). A valve body distribution pipe is provided between the valve body vibrating disc (202) and the valve body distributor (203). A valve body unloader is provided between the valve body distributor (203) and the valve body unloader (204). The valve body unloader (204) is used to transport the valve body (201) to the positioning fixture (10) through the valve body unloader.

4. The carburetor needle valve assembly equipment according to claim 1, characterized in that, The valve body cleaning device (3) includes a cleaning bracket (301), a burr removal mechanism, and an air blowing cleaning mechanism (302). The burr removal mechanism and the air blowing cleaning mechanism (302) are both mounted on the cleaning bracket (301). The burr removal mechanism is used to remove burrs from the pinholes of the valve body (201), and the air blowing cleaning mechanism (302) is used to clean the valve body (201) by blowing air. The burr removal mechanism includes a burr removal cylinder (303), a burr removal pressure head (304), and an anti-retraction paddle (305). The movable end of the burr removal cylinder (303) is connected to the burr removal pressure head (304). The anti-retraction paddle (305) has a through hole, and the burr removal pressure head (304) can pass through the through hole of the anti-retraction paddle (305) and extend into the pin hole of the valve body (201) to remove the burrs from the pin hole of the valve body (201). The anti-retraction paddle (305) is used to prevent the valve body (201) from leaving the positioning fixture (10). The cleaning bracket (301) is equipped with a hole depth detection sensor (306), which is used to detect the pinhole depth of the valve body (201).

5. The carburetor needle valve assembly equipment according to claim 1, characterized in that, The spring feeding device (4) includes a spring vibrating plate (402), a spring distributor (403), and a spring unloader (404). The spring vibrating plate (402) is used to store springs (401). A spring distribution pipe is provided between the spring vibrating plate (402) and the spring distributor (403). A spring unloader is provided between the spring distributor (403) and the spring unloader (404). The spring unloader (404) is used to transport the springs (401) through the spring unloader to the pinhole of the valve body (201).

6. The carburetor needle valve assembly equipment according to claim 1, characterized in that, The top rod feeding device (5) includes a top rod vibrating plate (502), a top rod distributor (503), and a top rod unloader (504). The top rod vibrating plate (502) is used to store top rods (501). A top rod (501) distribution pipe is provided between the top rod vibrating plate (502) and the top rod distributor (503). A top rod (501) unloading pipe is provided between the top rod distributor (503) and the top rod unloader (504). The top rod unloader (504) is used to transport the top rod (501) through the top rod (501) unloading pipe to the pinhole of the valve body (201).

7. The carburetor needle valve assembly equipment according to claim 1, characterized in that, The positioning detection device (6) includes an assembly detection bracket (601), on which a detection sensor (602) and a detection lever (603) are provided. The detection sensor (602) is used to detect the highest point of the valve body (201), spring (401) and push rod (501) after assembly. The detection lever (603) is used to knock off abnormal components that are not assembled in place and whose height exceeds the detection point.

8. The carburetor needle valve assembly equipment according to claim 1, characterized in that, The riveting device (7) includes a riveting bracket (701), a support mechanism (702) at the bottom of the riveting bracket (701), the support mechanism (702) being located below the positioning fixture (10); a pressing mechanism (703) at the top of the riveting bracket (701), and an air blowing mechanism (704) on one side of the riveting bracket (701).

9. The carburetor needle valve assembly equipment according to claim 1, characterized in that, The elasticity detection device (8) includes an elasticity detection bracket (801), the bottom of which is provided with an ejection mechanism, and the top of which is provided with an elasticity detection mechanism; The ejection mechanism includes an ejection cylinder (802), and the movable end of the ejection cylinder (802) is provided with an ejector pin (803); the elasticity detection mechanism includes an elasticity detection cylinder (04), an elasticity detection seat (805), a guide sleeve (806), a floating pin (807), and a pressure sensor (808). The movable end of the elasticity detection cylinder (04) is connected to the elasticity detection seat (805). The guide sleeve (806) is disposed on the elasticity detection seat (805). The floating pin (807) is slidably engaged with the guide sleeve (806). The pressure sensor (808) is used to detect the pressure of the ejector rod (501) on the floating pin (807).

10. The carburetor needle valve assembly equipment according to claim 1, characterized in that, The sorting and unloading device (9) includes a feeding bracket (901), a qualified feeding mechanism (902), and an unqualified feeding mechanism (903). The qualified feeding mechanism (902) and the unqualified feeding mechanism (903) are both mounted on the feeding bracket (901). The qualified feeding mechanism (902) is used to remove the assembled qualified needle valve from the positioning fixture (10), and the unqualified feeding mechanism (903) is used to remove the assembled unqualified needle valve from the positioning fixture (10). Both the qualified feeding mechanism (902) and the unqualified feeding mechanism (903) include an upper cylinder (904), an upper fixed plate (905), an upper suction pipe (906), a lower cylinder (907), a lower blowing pipe (908), and a lower blowing nozzle (909). The movable end of the upper cylinder (904) is connected to the upper fixed plate (905), and the upper suction pipe (906) is installed on the upper fixed plate (905). The movable end of the lower cylinder (907) is connected to the lower blowing pipe (908), and the end of the lower blowing pipe (908) is connected to the lower blowing nozzle (909). The lower blowing nozzle (909) is in sealed contact with the positioning fixture (10) on the rotary worktable (1) to blow the needle valve out from the positioning fixture (10).

Images