An automated assembly device and method for a fuel pump choke sleeve

Abstract

The present invention discloses an automatic assembly device and method for a fuel pump choke sleeve, which relates to the technical field of choke sleeve assembly. The assembly device includes a first feeding member, a second feeding member, a third feeding member and a first fixture. The first fixture is located between the first feeding member and the second feeding member. The second feeding member is arranged at one end of the third feeding member. The choke sleeve includes a housing, a plastic part and a round rod. The plastic part is sleeved on the round rod, and both the plastic part and the round rod are located inside the housing. A base is arranged on one side of the third feeding member. One end of the housing is an arc surface part. A processing component is arranged on one side of the third feeding member. The method includes that the first feeding member feeds the round rod onto the first fixture, and after the first fixture rotates the round rod; the second feeding member assembles the plastic part onto the round rod; after the present invention completes the assembly and fixation of the round rod, the plastic part and the housing, an airtightness detection is carried out. The automatic assembly device of the present invention positions and assembles, improves the assembly precision, and carries out airtightness detection, thereby improving the finished product performance of the choke sleeve.

Description

Technical Field

[0001] The present invention relates to the technical field of choke sleeve assembly, and in particular to an automatic assembly device and method for a fuel pump choke sleeve. Background Art

[0002] A general fuel pump includes a secondary fuel tank, a pump core is arranged in the secondary fuel tank, the pump core outputs the fuel in the secondary fuel tank and a siphon structure is configured on the secondary fuel tank, and a choke structure is installed to prevent fuel backflow.

[0003] In the prior art, as disclosed in the application number: 2020103034560 with the name: Automatic production line for assembling automotive fuel pumps, the rear end cover assembly component includes a choke plug supply part, a choke spring supply part, a choke bracket supply part, a indexing plate, a choke component pressing part, and a hot riveting part.

[0004] However, in the prior art, as mentioned in the automatic production line with the application number: 2020103034560, when assembling the choke component of the fuel pump, the components of the choke component are assembled step by step, and positioning is required for each assembly. In the existing assembly operation, the positioning accuracy is low, and the assembly accuracy of the choke component cannot be guaranteed, resulting in the prepared choke component not meeting the choke requirements of the fuel pump. Summary of the Invention

[0005] The purpose of the present invention is to provide an automatic assembly device and method for a fuel pump choke sleeve to solve the problems in the prior art.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] An automatic assembly device for a fuel pump choke sleeve, the assembly device includes a first feeding part, a second feeding part, a third feeding part, and a rotatable first fixture. The first fixture is located between the first feeding part and the second feeding part, and the second feeding part is arranged at one end of the third feeding part. The assembly device is used to assemble the choke sleeve, and the choke sleeve includes a housing, a plastic part, and a round rod.

[0008] The plastic part is sleeved on the round rod, and both the plastic part and the round rod are located inside the housing. A base for airtightness detection is arranged on one side of the third feeding part. One end of the housing is an arc surface part for fixing the plastic part, and a processing component for forming the arc surface part is arranged on one side of the third feeding part.

[0009] Preferably, a ball head is arranged at one end of the round rod, and the ball head abuts against the bottom of the housing.

[0010] Preferably, the assembly device further includes a mounting plate. The first feeding part, the second feeding part, and the third feeding part are arranged on the mounting plate. A transfer part is arranged on one side of the third feeding part, and a second sliding table is arranged on the mounting plate.

[0011] Preferably, the first fixture is located on the second sliding table. On the mounting plate and at one end of the second feeding member, there is a telescopic rod. An arc-shaped groove for positioning the ball head is provided on the telescopic rod. A positioning V-groove is arranged on one side of the telescopic rod, and a third sliding table is provided on the mounting plate.

[0012] A fifth sliding table is provided on the third sliding table, and a third fixture for moving the round rod is provided on the fifth sliding table.

[0013] Preferably, the first feeding member includes a first vibrating feeding tray and a first sliding table. A first guiding plate for feeding the round rod is provided on one side of the first vibrating feeding tray. A material-stopping block is arranged at one end of the first guiding plate. A sensor for monitoring the feeding is provided on the material-stopping block. A movable material-transfer suction cup for adsorbing the ball head is provided on the first sliding table.

[0014] A material-transfer plate is slidably arranged on the material-stopping block. A material-clamping groove for fixing the round rod is provided on the material-transfer plate. A cylinder for driving is connected to the material-transfer suction cup. The material-transfer suction cup is located on one side of the sensor. A discharge port is opened on the material-stopping block and on one side of the sensor, and the discharge port is located below the material-transfer suction cup.

[0015] Preferably, the second feeding member includes a second vibrating feeding tray. A second guiding plate for feeding the plastic part is provided on one side of the second vibrating feeding tray. A fourth sliding table is provided on the third sliding table. A second fixture is slidably arranged on the fourth sliding table, and a positioning groove is provided on the clamping jaws of the second fixture.

[0016] A feeding plate is arranged at one end of the second guiding plate. A through groove is provided on the feeding plate. A positioning block is arranged in the through groove. The positioning groove cooperates with the positioning block. Auxiliary holes are symmetrically arranged in the feeding plate, and auxiliary rods are slidably arranged in the auxiliary holes.

[0017] One end of the auxiliary rod is provided with a connecting rod. An inclined surface is provided on the connecting rod, and an inclined groove is provided on the inclined surface. One end of the connecting rod is connected to the feeding plate through a first spring. A straight rod is arranged on one side of the second fixture.

[0018] One end of the straight rod is provided with a triangular plate. The inclined groove cooperates with the triangular plate, and the triangular plate cooperates with the positioning V-groove for positioning and assembling the plastic part and the round rod.

[0019] Preferably, the third feeding member includes a third vibrating feeding tray. A third guiding plate is arranged on one side of the third vibrating feeding tray. An assembling plate is fixedly arranged at one end of the third guiding plate. A groove is provided on the assembling plate. A sixth sliding table is provided on one side of the third fixture. The fourth sliding table, the fifth sliding table, and the sixth sliding table are all vertically arranged, and a detecting member is slidably arranged on the sixth sliding table.

[0020] The processing component is arranged on the detection component. The processing component includes a first pressing die, a second pressing die and a third pressing die. The second pressing die is arranged between the first pressing die and the third pressing die. The second pressing die is slidably arranged on the slide rail of the first pressing die. The third pressing die is slidably arranged on the slide rail of the second pressing die. The first pressing die is connected to the detection component.

[0021] The detection component is provided with air holes communicated with the first pressing die. The second pressing die and the third pressing die are both arrayed with second springs connected to the detection component. Threaded holes are arrayed between the second pressing die and the first pressing die for the bolts for fixing the second pressing die to cooperate with the threaded holes. Bolts and threaded holes are also provided between the second pressing die and the third pressing die.

[0022] Preferably, the material moving component includes a seventh sliding table. An eighth sliding table is arranged on the seventh sliding table. A fourth clamp is arranged on the eighth sliding table. A connecting block is arranged on one side of the material moving component. An inclined plate is installed on the connecting block. A limiting block is tightly fixed on the inclined plate. A limiting rod is arranged on one side of the sixth sliding table.

[0023] A limiting groove is arranged at one end of the limiting rod. A ninth sliding table is fixedly arranged on the limiting rod. A connecting pipe is arranged on the ninth sliding table. The fourth clamp cooperates with the groove. The connecting pipe cooperates with the connecting block. The limiting groove cooperates with the limiting block.

[0024] Preferably, the base includes a locking block. A sealing seat is arranged on the locking block. The base is arranged on the mounting plate through a tenth sliding table. An installation groove is arranged in the sealing seat. A trapezoidal block is slidably arranged in the installation groove. The bottom of the trapezoidal block is connected to the installation groove through a supporting spring. Open slots are communicated on both sides of the trapezoidal block.

[0025] Clamping blocks are slidably arranged in the open slots. The clamping blocks are slidably connected to the inclined surfaces of the trapezoidal blocks. The clamping blocks are connected to the open slots through third springs. The locking block is provided with a counterbore communicated with the installation groove for fixing the flow blocking sleeve.

[0026] A method for an automatic assembly device of a fuel pump flow blocking sleeve, the method comprising the following steps:

[0027] S1. Complete the feeding operation of the round rod through the first feeding component. The transfer suction cup adsorbs and moves the round rod to the first clamp. The first clamp clamps the round rod and rotates it by 180 degrees.

[0028] S2. Feed the plastic part onto the round rod clamped by the first clamp through the second feeding component. After completion of the assembly, move the first clamp.

[0029] S3. Move the round rod clamped by the first clamp into the housing through the third feeding component.

[0030] S4. Move the assembled flow blocking sleeve into the base, use the processing component to process the end of the housing, and perform airtightness detection.

[0031] Advantages of the present invention:

[0032] 1. The automated assembly equipment of the present invention is designed with multiple positioning structures to position and load plastic parts, round rods, and housings, and perform positioning assembly and loading, ensuring the accuracy of loading, improving the assembly accuracy, and using the base to seal the bottom of the housing to facilitate the formation of a sealed environment for performing airtightness detection operations on the flow blocking sleeve;

[0033] 2. The automated assembly equipment of the present invention has a simple assembly equipment, convenient assembly operation, high assembly efficiency, and convenient assembly operation for the flow blocking sleeve, ensuring the assembly accuracy of the flow blocking sleeve, performing automated assembly and airtightness detection, and improving the finished product performance of the flow blocking sleeve.

[0034] The present invention will be further described below with reference to the accompanying drawings.

[0035] Figure 1 is a schematic structural diagram of the flow blocking sleeve of the present invention;

[0036] Figure 2 is a sectional view of the flow blocking sleeve of the present invention;

[0037] Figure 3 is a schematic structural diagram of the assembly equipment of the present invention;

[0038] Figure 4 is a schematic structural diagram of the first loading member of the present invention;

[0039] Figure 5 is a sectional view of the first loading member of the present invention;

[0040] Figure 6 is a schematic structural diagram of the second loading member of the present invention;

[0041] Figure 7 is a sectional view of a part of the second loading member of the present invention;

[0042] Figure 8 is a schematic structural diagram of a part of the assembly equipment of the present invention;

[0043] Figure 9 is the present invention Figure 8 enlarged schematic structural diagram at A in;

[0044] Figure 10 is a schematic structural diagram of the third loading member of the present invention;

[0045] Figure 11 is a schematic structural diagram of the processing component of the present invention;

[0046] Figure 12 is a sectional view of a part of the processing component of the present invention;

[0047] Figure 13 is the present inventionFigure 12 Schematic diagram of the enlarged structure at position B in the [device / component name];

[0048] Figure 14 Schematic diagram of the limiting rod structure of the present invention;

[0049] Figure 15 Cross-sectional view of the partial structure of the limiting rod of the present invention;

[0050] Figure 16 Schematic diagram of the base structure of the present invention;

[0051] Figure 17 Cross-sectional view of the base of the present invention. Detailed implementation manners

[0052] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0053] An automated assembly device for a fuel pump choke sleeve, as Figure 1 、 Figure 2 shown. The automated assembly device automatically assembles and processes the fuel pump choke sleeve. The above-mentioned choke sleeve includes a housing 1 and a plastic part 2. A round rod 3 is arranged inside the housing 1. One end of the round rod 3 is provided with a ball head, and the ball head abuts against the bottom of the housing 1. The plastic part 2 is arranged in the housing 1 and sleeved on the round rod 3 to limit the ball head. The round rod 3 is movable inside the housing 1, and an arc surface part 10 is formed at the end of the housing 1 to snap-fix the plastic part 2.

[0054] As Figure 3 shown, the assembly device includes a mounting plate 4. A first feeding part 5, a second feeding part 6 and a third feeding part 7 are fixedly arranged on the mounting plate 4. The second feeding part 6 is located on one side of the first feeding part 5, and the third feeding part 7 is arranged on one side of the second feeding part 6. A transfer part 8 is fixedly arranged on the side of the third feeding part 7 away from the second feeding part 6, and a base 9 is arranged on one side of the transfer part 8.

[0055] As Figure 4 、 Figure 5As shown in the figure, the first feeding member 5 is arranged on the mounting plate 4, and the first feeding member 5 includes a first vibrating feeding tray 51 for feeding the round rod 3. A first guiding plate is installed on one side of the first vibrating feeding tray 51. When the ball head moves on the first guiding plate, the ball head is always located above the first guiding plate. A positioning block 52 is arranged at the end of the first guiding plate away from the first vibrating feeding tray 51. A moving plate 53 is slidably arranged on the positioning block 52, and a material clamping groove 56 is formed on the moving plate 53 for fixing the round rod 3.

[0056] One end of the moving plate 53 is connected to a cylinder for moving the moving plate 53 to control the translation of the moving plate 53. A sensor 57 is arranged on the positioning block 52 for monitoring the round rod 3 fed on the first guiding plate to the moving plate 53 and monitoring the feeding process of the round rod 3 to avoid empty feeding and material jamming. And the first feeding member 5 includes a first sliding table 50, and a movable suction cup 55 for adsorbing the ball head of the round rod 3 is installed on the first sliding table 50.

[0057] The movable suction cup 55 is connected to a cylinder for driving to control the vertical movement of the movable suction cup 55. The movable suction cup 55 is located on one side of the sensor 57. A discharge port 521 is formed on the positioning block 52 and on one side of the sensor 57. The discharge port 521 is located below the movable suction cup 55. The movable suction cup 55 sucks out the round rod 3 located in the material clamping groove 56 from the discharge port 521.

[0058] As Figure 6 shown, a second sliding table 41 is arranged between the first feeding member 5 and the second feeding member 6. A rotatable first fixture 42 is arranged on the second sliding table 41 to clamp the round rod 3 in the movable suction cup 55. After the first fixture 42 rotates 180 degrees, the ball head of the round rod 3 is adjusted downward. An expansion rod 43 is arranged on the mounting plate 4 and at one end of the second feeding member 6. An arc-shaped groove is formed on the expansion rod 43 for placing the ball head. And a positioning V-groove 44 is fixedly arranged on one side of the expansion rod 43. A third sliding table 45 is arranged on the mounting plate 4.

[0059] As Figures 6 - 9 shown, the second feeding member 6 includes a second vibrating feeding tray 61. A second guiding plate is installed on one side of the second vibrating feeding tray 61 for feeding the plastic part 2. A fourth sliding table 60 is installed on the third sliding table 45. A second fixture 601 is slidably arranged on the fourth sliding table 60 to clamp and move the plastic part 2. Positioning grooves are formed on the clamping jaws of the second fixture 601.

[0060] One end of the second material guiding plate is equipped with a loading plate 62. A through groove 621 is formed in the loading plate 62, and a positioning block 622 is arranged in the through groove 621. The second clamp 601 cooperates with the positioning block 622 through the positioning groove thereon, facilitating the clamping of the plastic part 2 guided by the second material guiding plate onto the loading plate 62. Symmetrically distributed auxiliary holes 69 are formed in the loading plate 62, and auxiliary rods 65 are slidably arranged in the auxiliary holes 69, which are used for the auxiliary fixation of the plastic part 2 to be loaded.

[0061] One end of the auxiliary rod 65 is provided with a connecting rod 63. An inclined surface 66 is arranged on the connecting rod 63, and an inclined groove is formed in the inclined surface 66. One end of the connecting rod 63 is connected with a first spring 64, and the first spring 64 is fixedly connected with the loading plate 62. Under the action of the first spring 64, the two connecting rods 63 are in mutual contact. A straight rod 67 is fixedly arranged on one side of the second clamp 601.

[0062] One end of the straight rod 67 is fixedly provided with a triangular plate 68. The inclined surface of the triangular plate 68 cooperates with the inclined groove, controlling the reverse movement of the two connecting rods 63 through the triangular plate 68, compressing the first spring 64, controlling the auxiliary rod 65 to release the plastic part 2, and the second clamp 601 clamps the plastic part 2 from the loading plate 62 onto the rotated first clamp 42. The triangular plate 68 cooperates with the positioning V-groove 44 to position and assemble the plastic part 2 sleeved on the round rod 3.

[0063] The second sliding table 41 translates the assembled plastic part 2 and the round rod 3. A fifth sliding table 46 is arranged on the third sliding table 45, and a third clamp 47 is installed on the fifth sliding table 46. The third clamp 47 translates on the third sliding table 45, moves above the first clamp 42, and clamps and moves the round rod 3 of the plastic part 2 assembled on the first clamp 42.

[0064] As Figures 10 - 13 shown, the third loading part 7 includes a third vibrating loading tray 71. One side of the third vibrating loading tray 71 is fixedly provided with a third material guiding plate for loading the outer shell 1. The third clamp 47 places the plastic part 2 and the round rod 3 into the outer shell 1. One end of the third material guiding plate far from the third vibrating loading tray 71 is fixedly provided with an assembling plate 72, and a groove 73 is formed in the assembling plate 72, and the groove 73 is located at the position of the outer shell 1 to be assembled.

[0065] A sixth sliding table 74 is arranged on one side of the third clamp 47. The fourth sliding table 60, the fifth sliding table 46, and the sixth sliding table 74 are all vertically arranged. A detecting part 75 is slidably arranged on the sixth sliding table 74, and a processing part is arranged on the detecting part 75 for processing the end part of the outer shell 1 to prepare the arc surface part 10.

[0066] The processed part includes a first die 76, a second die 77, and a third die 78. The second die 77 is located between the first die 76 and the third die 78. The first die 76 is fixedly connected to a detection part 75. The detection part 75 is provided with air holes, and the air holes communicate with the first die 76. Slide rails 79 are provided on the outer sides of both the first die 76 and the second die 77. The second die 77 is slidably connected to the slide rail 79 on the outer side of the first die 76, and the third die 78 is slidably connected to the slide rail 79 on the outer side of the second die 77.

[0067] Both the second die 77 and the third die 78 are provided with second springs 70 distributed in an array for connecting with the detection part 75. Threaded holes distributed in an array are provided between the second die 77 and the first die 76. The threaded holes penetrate through the second die 77 and the first die 76. Bolts are connected to the threaded holes for connecting the second die 77 and the first die 76. Bolts and threaded holes are provided between the second die 77 and the third die 78.

[0068] When bolts are connected between the second die 77 and the third die 78, the outer shell 1 with a small diameter is processed by the first die 76. When bolts are connected between the second die 77 and the first die 76, the second die 77 processes the outer shell 1. When bolts are connected between the second die 77, the first die 76, and the third die 78, the outer shell 1 with a large diameter can be processed by the second die 77 for processing outer shells 1 with different diameters.

[0069] As Figure 11 、 Figure 14 、 Figure 15 shown, the material transfer part 8 includes a seventh slide table. An eighth slide table 81 is provided on the seventh slide table. A fourth fixture 82 is provided on the eighth slide table 81. The fourth fixture 82 cooperates with the groove 73 to clamp the outer shell 1 on the assembled plate 72, move the assembled flow blocking sleeve to the lower part of the processed part, and place the flow blocking sleeve on the base 9. The outer shell 1 is pressed by the processed part to process the arc surface part 10, and the air tightness of the outer shell 1 is detected by the detection part 75.

[0070] A connection block 84 is provided on one side of the material transfer part 8. An inclined plate 85 is installed on the connection block 84. A limiting block 86 is tightly fixed on the inclined plate 85. A limiting rod 80 is connected to one side of the sixth slide table 74. A limiting groove 83 is provided at one end of the limiting rod 80. The limiting groove 83 cooperates with the limiting block 86 to position the cooperation between the eighth slide table 81 and the sixth slide table 74. A ninth slide table 89 is fixedly provided on the limiting rod 80. A connecting pipe 87 is provided on the ninth slide table 89. The connecting pipe 87 cooperates with the connection block 84 to lock the position of the eighth slide table 81 to ensure accurate positioning of the flow blocking sleeve and the processed part.

[0071] As Figure 16 、 Figure 17As shown in the figure, the base 9 includes a locking block 91. A sealing seat 92 is fixedly provided on the locking block 91. The base 9 is slidably arranged on the tenth slide 90, and the tenth slide 90 is fixedly connected to the mounting plate 4. An installation groove 93 is provided in the sealing seat 92. A support spring 94 is fixedly provided in the installation groove 93. A trapezoidal block 95 is fixedly provided on the support spring 94. The trapezoidal block 95 is slidably connected to the installation groove 93. Open slots 96 are provided on both sides of the trapezoidal block 95, and the open slots 96 communicate with the installation groove 93.

[0072] A clamping block 97 is slidably arranged in the open slot 96 for clamping and positioning the outer shell 1. The clamping block 97 is slidably connected to the inclined surface of the trapezoidal block 95. A third spring 98 is arranged on the inner wall of the open slot 96. One end of the third spring 98 is fixedly connected to the clamping block 97. A sunk groove 99 is provided on the locking block 91, and the sunk groove 99 communicates with the installation groove 93 for placing components such as the assembled outer shell 1 of the flow restrictor sleeve.

[0073] Working principle:

[0074] An automatic assembly device for a fuel pump flow restrictor sleeve first feeds the round rod 3 through the first feeding member 5. The transfer suction cup 55 adsorbing the round rod 3 is driven by the first slide 50 to translate and move to the first fixture 42. After the first fixture 42 clamps the round rod 3, it rotates for a 180-degree flipping operation to make the round rod 3 upward, and the ball head cooperates with the arc groove to stably position the position of the round rod 3. Then, the second fixture 601 on the second feeding member 6 clamps the plastic part 2 and positions it on the round rod 3. The plastic part 2 is sleeved on the round rod 3, and the second slide 41 is driven to move the first fixture 42.

[0075] Then, the third fixture 47 of the third feeding member 7 clamps the round rod 3 and places the round rod 3 into the outer shell 1 to complete the preliminary assembly. Moreover, the fourth fixture 82 takes out the flow restrictor sleeve from the third feeding member 7 and places it into the sunk groove 99 of the base 9. And the sixth slide 74 controls the detection member 75 to move downward, and the processing part is used to process the end of the outer shell 1. The outer shell 1 presses down the trapezoidal block 95 to compress the support spring 94 to control the trapezoidal block 95 to seal the bottom of the outer shell 1. The third spring 98 pushes the clamping block 97 to position and clamp the outer shell 1 to prevent the outer shell 1 from being deformed under pressure.

[0076] The detection member 75 performs airtightness detection on the outer shell 1, conducts automatic assembly processing, improves the processing efficiency of the flow restrictor sleeve, and improves the processing effect, ensures the quality of the finished product of the flow restrictor sleeve, and conducts airtightness detection to simplify the production process of the flow restrictor sleeve.

[0077] A method for an automatic assembly device of a fuel pump flow restrictor sleeve, the method includes the following steps:

[0078] S1. Complete the feeding operation of the round rod 3 through the first feeding part 5. The transfer suction cup 55 adsorbs and moves the round rod 3 to the first fixture 42, and the first fixture 42 clamps the round rod 3 and rotates it by 180 degrees.

[0079] S2. Feed the plastic part 2 onto the round rod 3 clamped by the first fixture 42 through the second feeding part 6. After completion of the assembly, move the first fixture 42.

[0080] S3. Move the round rod 3 clamped by the first fixture 42 into the housing 1 through the third feeding part 7.

[0081] S4. Move the assembled flow blocking sleeve into the base 9, use the processing part to process the end of the housing 1, and conduct an airtightness test.

[0082] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0083] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. An automated assembly device for a fuel pump choke sleeve, characterized in that, The assembly device includes a first loading member (5), a second loading member (6), a third loading member (7), and a rotatable first fixture (42). The first fixture (42) is located between the first loading member (5) and the second loading member (6). The second loading member (6) is arranged at one end of the third loading member (7). The assembly device is used for assembling a flow blocking sleeve, and the flow blocking sleeve includes a housing (1), a plastic part (2), and a round rod (3). The plastic part (2) is sleeved on the round rod (3), and both the plastic part (2) and the round rod (3) are located inside the housing (1). A base (9) for airtightness detection is arranged on one side of the third loading member (7). One end of the housing (1) is an arc surface portion (10) for fixing the plastic part (2). A processing component for forming the arc surface portion (10) is arranged on one side of the third loading member (7). One end of the round rod (3) is provided with a ball head, and the ball head abuts against the bottom of the housing (1). The assembly device further includes a mounting plate (4). The first loading member (5), the second loading member (6), and the third loading member (7) are arranged on the mounting plate (4). A transfer member (8) is arranged on one side of the third loading member (7). A second sliding table (41) is arranged on the mounting plate (4). The first fixture (42) is located on the second sliding table (41). A telescopic rod (43) is arranged on the mounting plate (4) and at one end of the second loading member (6). An arc-shaped groove for positioning the ball head is arranged on the telescopic rod (43). A positioning V-groove (44) is arranged on one side of the telescopic rod (43). A third sliding table (45) is arranged on the mounting plate (4). The first loading member (5) includes a first vibrating loading tray (51) and a first sliding table (50). A transfer suction cup (55) for adsorbing the ball head and capable of moving is arranged on the first sliding table (50). The second loading member (6) includes a second vibrating loading tray (61). A second guide plate for loading the plastic part (2) is arranged on one side of the second vibrating loading tray (61). A fourth sliding table (60) is arranged on the third sliding table (45). A second fixture (601) is slidably arranged on the fourth sliding table (60). Positioning grooves are arranged on the jaws of the second fixture (601). One end of the second guide plate is provided with a loading plate (62). A through groove (621) is arranged on the loading plate (62). A positioning block (622) is arranged in the through groove (621). The positioning grooves cooperate with the positioning block (622). Auxiliary holes (69) are symmetrically arranged inside the loading plate (62). Auxiliary rods (65) are slidably arranged in the auxiliary holes (69). One end of the auxiliary rod (65) is provided with a connecting rod (63). An inclined surface (66) is arranged on the connecting rod (63). An inclined groove is arranged on the inclined surface (66). One end of the connecting rod (63) is connected to the loading plate (62) through a first spring (64). A straight rod (67) is arranged on one side of the second fixture (601). One end of the straight rod (67) is provided with a triangular plate (68). The inclined groove cooperates with the triangular plate (68). The triangular plate (68) cooperates with the positioning V-groove (44) for positioning and assembling the plastic part (2) and the round rod (3). A fifth slide (46) is provided on the third slide (45), and a third fixture (47) for moving the round rod (3) is provided on the fifth slide (46). The third feeding member (7) includes a third vibrating feeding tray (71). A third guiding plate is provided on one side of the third vibrating feeding tray (71) for feeding the outer shell (1). The third fixture (47) places the plastic part (2) and the round rod (3) into the outer shell (1).

2. The automated assembly equipment for a fuel pump choke sleeve according to claim 1, characterized in that, A first guiding plate for feeding the round rod (3) is provided on one side of the first vibrating feeding tray (51). A positioning block (52) is provided at one end of the first guiding plate, and a sensor (57) for monitoring the feeding is provided on the positioning block (52). A moving plate (53) is slidably provided on the positioning block (52). A material clamping groove (56) for fixing the round rod (3) is provided on the moving plate (53). A cylinder for driving is connected to the moving suction cup (55). The moving suction cup (55) is located on one side of the sensor (57). An outlet (521) is provided on the positioning block (52) and on one side of the sensor (57), and the outlet (521) is located below the moving suction cup (55).

3. An automated assembly device for a fuel pump choke sleeve according to claim 1, characterized in that, One end of the third guiding plate is fixedly provided with an assembly plate (72). A groove (73) is provided on the assembly plate (72). A sixth slide (74) is provided on one side of the third fixture (47). The fourth slide (60), the fifth slide (46), and the sixth slide (74) are all vertically arranged. A detecting member (75) is slidably provided on the sixth slide (74). The processing component is arranged on the detecting member (75). The processing component includes a first pressing die (76), a second pressing die (77), and a third pressing die (78). The second pressing die (77) is arranged between the first pressing die (76) and the third pressing die (78). The second pressing die (77) is slidably arranged on the slide rail (79) of the first pressing die (76). The third pressing die (78) is slidably arranged on the slide rail (79) of the second pressing die (77). The first pressing die (76) is connected to the detecting member (75). An air hole communicating with the first pressing die (76) is provided on the detecting member (75). Second springs (70) connected to the detecting member (75) are arrayed on both the second pressing die (77) and the third pressing die (78). Threaded holes are arrayed between the second pressing die (77) and the first pressing die (76). Bolts for fixing the second pressing die (77) cooperate with the threaded holes. Bolts and threaded holes are also provided between the second pressing die (77) and the third pressing die (78).

4. An automated assembly device for a fuel pump choke sleeve according to claim 3, characterized in that, The material moving member (8) includes a seventh slide. An eighth slide (81) is provided on the seventh slide. A fourth fixture (82) is provided on the eighth slide (81). A connecting block (84) is provided on one side of the material moving member (8). An inclined plate (85) is installed on the connecting block (84). A limiting block (86) is tightly provided on the inclined plate (85). A limiting rod (80) is provided on one side of the sixth slide (74). One end of the limiting rod (80) is provided with a limiting groove (83). A ninth sliding table (89) is fixedly arranged on the limiting rod (80). A connecting pipe (87) is arranged on the ninth sliding table (89). The fourth clamp (82) is matched with the groove (73). The connecting pipe (87) is matched with the connecting block (84). The limiting groove (83) is matched with the limiting block (86).

5. The automated assembly equipment for a fuel pump choke sleeve according to claim 1, characterized in that, The base (9) includes a locking block (91). A sealing seat (92) is arranged on the locking block (91). The base (9) is arranged on the mounting plate (4) through a tenth sliding table (90). An installation groove (93) is arranged in the sealing seat (92). A trapezoidal block (95) is slidably arranged in the installation groove (93). The bottom of the trapezoidal block (95) is connected with the installation groove (93) through a support spring (94). Open grooves (96) are communicated with both sides of the trapezoidal block (95). A clamping block (97) is slidably arranged in the open groove (96). The clamping block (97) is slidably connected with the inclined surface of the trapezoidal block (95). The clamping block (97) is connected with the open groove (96) through a third spring (98). A sunk groove (99) for fixing the flow blocking sleeve is arranged on the locking block (91) and communicated with the installation groove (93).

6. A method for an automatic assembly device of a fuel pump choke sleeve according to any one of claims 2-5, characterized in that, The method includes the following steps: S1. The feeding operation of the round rod (3) is completed through the first feeding part (5). The transfer suction cup (55) adsorbs and moves the round rod (3) to the first clamp (42). The first clamp (42) clamps the round rod (3) and rotates it by 180 degrees. S2. The plastic part (2) is fed onto the round rod (3) clamped by the first clamp (42) through the second feeding part (6). After the assembly is completed, the first clamp (42) is moved. S3. The round rod (3) clamped by the first clamp (42) is moved into the housing (1) through the third feeding part (7). S4. The assembled flow blocking sleeve is moved and placed into the base (9). The end of the housing (1) is processed by the processing part, and the air tightness is detected.

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