Automatic assembly machine for fuel pump accessories

Abstract

The present invention relates to an automatic assembly machine for fuel pump accessories, comprising a machine platform, a dividing turntable arranged on the machine platform, and a first driving member driving the dividing turntable to rotate, the dividing turntable is provided with a plurality of detachable material trays, the machine platform is provided with a wire assembly station, a hot riveting station, a brush cover loading assembly station, a bellows clamp assembly station, a clamp clamping station, a filter assembly station, and upper and lower material stations along the circumference of the dividing turntable, the wire assembly station comprises a wire pressing block and a second driving member driving the wire pressing block to rise and fall, the hot riveting station comprises a hot riveting part and a third driving member driving the hot riveting part to rise and fall, and the brush cover loading assembly station comprises a brush cover loading mechanism and a brush cover assembly mechanism. By adopting the above technical scheme, the present invention provides an automatic assembly machine for fuel pump accessories, which can realize automatic assembly without manual installation of accessories, greatly improves assembly efficiency, is safer, and has a high pass rate.

Description

Technical Field

[0001] The invention relates to the technical field of fuel pumps, in particular to an automatic assembly machine for fuel pump accessories. Background Art

[0002] Before using the electric fuel pump, you need to assemble the wires, brush covers, bellows, clamps, filters and other accessories on the fuel pump. The wires need to be fixed by hot riveting, and the bell-shaped stepless clamps need to be clamped. The existing assembly method is manual positioning assembly. The first step is to manually pre-install the wires on the fuel pump, and then press them with a cylinder; the second step is to fix them with hot riveting, turn on the power to test the continuity; the third step is to manually put on two brush covers, and then press them with a tooling cylinder; the fourth step is to pre-sleeve the clamp on the bellows and hold it with your hands to prevent it from falling off, and then pre-place the bellows on the fuel pump nozzle, clamp it with a special tooling, and then press it; the fifth step is to clamp the clamp with a manual clamp pliers to tighten it in place; the sixth step is to flip the fuel pump to position it, pre-install the filter, fix it, and then press it with a special tooling.

[0003] However, the existing assembly method requires collaboration among multiple people, is inefficient, labor-intensive, poses a safety hazard to operators, and manual installation has a low pass rate. Summary of the invention

[0004] Purpose of the invention: In order to overcome the defects of the prior art, the present invention provides an automatic assembly machine for fuel pump accessories, which can realize automatic assembly without manual installation of accessories, greatly improves assembly efficiency, is safer, and has a high pass rate.

[0005] The technical solution of the present invention is as follows: an automatic assembly machine for fuel pump accessories, comprising a machine platform, a dividing turntable arranged on the machine platform, and a first driving member driving the dividing turntable to rotate, the dividing turntable is provided with a plurality of detachable material trays, each material tray comprising a fuel pump placement area, a clamp placement area, a bellows placement area, and a filter placement area, a wire assembly station, a hot riveting station, a brush cover loading assembly station, a bellows clamp assembly station, a clamp clamping station, a filter assembly station, and loading and unloading stations are arranged on the machine platform along the circumference of the dividing turntable, the wire assembly station comprises a wire pressing block and a second driving member driving the wire pressing block to rise and fall, the hot riveting station comprises a hot riveting piece and a third driving member driving the hot riveting piece to rise and fall, The brush cover feeding and assembly station includes a brush cover feeding mechanism and a brush cover assembly mechanism. The bellows clamp assembly station includes a clamp picking piece for clamping the clamp, a bellows picking piece for clamping the bellows, a clamping piece for clamping the bellows, and a first clamping piece for clamping the bellows and the clamp. The clamp clamping station includes two first clamps arranged opposite to each other and a fourth driving piece for driving the two first clamps to move upward and downward toward or away from each other, a fifth driving piece for driving the first clamp to move upward and downward, and a sixth driving piece for driving the first clamp to slide toward the indexing turntable. The filter assembly station includes a fuel pump clamping piece, a U-shaped plate, and a second clamping piece for clamping the fuel pump in the fuel pump placement area to the filter placement area.

[0006] By adopting the above technical scheme, the accessories on the fuel pump can be automatically assembled, which greatly improves the assembly efficiency and has a good assembly effect. The first driving member drives the indexing turntable to rotate, and passes through each station in turn. The fuel pump and the accessories are placed in the corresponding placement area from the loading and unloading stations, and then the wires are assembled to the fuel pump through the wire assembly station, and then hot riveted at the hot riveting station, so that the wires are hot-riveted and fixed on the fuel pump, and then go to the brush cover loading and assembly station to assemble the brush cover to the fuel pump, and then the clamp and corrugated The pipe is assembled, and then the clamp is clamped at the clamp clamping station, and then the filter assembly station is turned to clamp the fuel pump assembly with accessories installed to the filter placement area, and then accurately pressed onto the filter, and finally taken away from the upper and lower material stations, and a new fuel pump and accessories are placed on this material tray, and the fuel pump accessories are installed reciprocatingly. The material tray is detachably installed on the dividing plate and can be replaced. It can be replaced according to the size of the fuel pump, making this assembly machine suitable for the assembly of fuel pump accessories of different models and sizes, and it is highly practical.

[0007] Further configuration of the present invention: a first mounting frame is provided on the hot riveting station, the third driving member is fixedly arranged on the first mounting frame, the hot riveting member includes a heating core rod, a heating plate, a heat insulation plate and a hot riveting guide plate, the hot riveting guide plate is connected to the output shaft of the third driving member, the heat insulation plate is arranged at the lower end of the hot riveting guide plate, the heating plate is installed on the heat insulation plate, the heating core rod is connected to the heating plate, and is located above the fuel pump placement area.

[0008] With the above further arrangement, the third driving member drives the heating core rod to descend so that it contacts the wire, and the wire is hot-riveted to the fuel pump. A heat insulation plate is arranged between the heating plate and the hot riveting guide plate to prevent the heating plate temperature from being too high and affecting the third driving member. The temperature and time of the heating core rod and the heating plate can be set by oneself.

[0009] The present invention is further configured as follows: a second mounting frame is provided on the wire assembly station, the second driving member is fixedly arranged on the second mounting frame, a guide bearing is provided on the second mounting frame, a pressing guide plate is provided on the wire pressing block, the output shaft of the second driving member is connected to the pressing guide plate, a guide shaft is connected to the pressing guide plate, and the guide shaft is slidably arranged in the guide bearing.

[0010] By further adopting the above arrangement, the structures of the components on the wire assembly station are stable. When the second driving member drives the press-fitting guide plate to rise and fall, the guide shaft rises and falls synchronously and is lifted and lowered in the guide bearing, so that the structure of the wire press-fitting block is stable and the position is accurate when it is lifted and lowered, thereby making the wire assembly position accurate, which is convenient for subsequent hot riveting.

[0011] The present invention is further configured as follows: the brush cover feeding mechanism includes a vibration plate, a push rod, a feeding piece and a brush cover placement plate, the push rod is slidably arranged at the discharge port of the vibration plate, and the push rod is provided with a receiving groove for accommodating the brush cover, the brush cover placement plate is provided with a brush cover placement groove, the brush cover feeding mechanism also includes a seventh driving piece for driving the brush cover placement plate to slide toward the dividing turntable, the brush cover assembly mechanism includes a pressing piece and an eighth driving piece for driving the pressing piece to rise and fall, the pressing piece is located above the dividing turntable and corresponds to the position of the fuel pump placement area.

[0012] The above-mentioned further arrangement is adopted, and the vibration plate realizes the loading of brush covers one by one. The front end brush cover is pushed into the receiving groove of the push rod by the rear end brush cover, and then moves in the direction of the upper material piece. When the push rod slides, the side wall of the push rod blocks the discharge port to prevent the brush cover at the discharge port of the vibration plate from falling off. The loading part picks up the brush cover in the receiving groove and puts it into the brush cover placement groove of the brush cover placement plate. There are two brush cover placement grooves. After the brush covers are placed in the two brush cover placement grooves, the brush cover placement plate transports it toward the material tray and is located above the fuel pump. The pressing part presses down to push the brush cover in the placement groove onto the brush cover, and the brush cover placement plate returns to its position. The pressing part continues to press down to press the brush cover and the fuel pump tightly, which has high working efficiency. In addition, adding a brush cover placement plate between the loading part and the material tray can reduce the movement path of the loading part, and at the same time make the position of the brush cover more accurate when placing the fuel pump.

[0013] The present invention is further configured as follows: the brush cover feeding mechanism also includes two relatively arranged limit members, the two limit members are located on the side of the push rod away from the vibration plate, the push rod is provided with a limit plate, the limit plate is slidably arranged between the two limit members, and also includes a sensor for detecting whether there is a brush cover in the accommodating groove.

[0014] By adopting the above-mentioned further arrangement, the movement of the push rod is limited to prevent it from slipping excessively, which would affect the picking up of the loading piece, or cause the accommodating groove and the discharge port to be misaligned, making it impossible to load the brush cover. When the sensor senses that there is a brush cover in the accommodating cavity, the loading piece works and moves toward the accommodating groove to pick up the brush cover, thereby avoiding misoperation.

[0015] The present invention is further configured as follows: the bellows clamp assembly station also includes a ninth driving member for driving the clamp picking member to slide between the fuel pump placement area and the clamp placement area, a tenth driving member for driving the clamp picking member to slide in the direction of the indexing turntable, an eleventh driving member for driving the bellows picking member to slide between the fuel pump placement area and the bellows placement area, a twelfth driving member for driving the bellows picking member to slide in the direction of the indexing turntable, a thirteenth driving member for driving the clamping member to slide in the direction of the indexing turntable, and a fourteenth driving member for driving the clamping member to lift and lower. A third mounting frame is provided on the bellows clamp assembly station, and the twelfth driving member, the thirteenth driving member and the fourteenth driving member are fixedly arranged on the third mounting frame.

[0016] With the above further arrangement, the clamp and the bellows are respectively picked up by two picking parts, and transferred to the fuel pump assembly position, the clamp is located below the bellows, the clamp moves toward the indexing turntable, clamps the upper end of the bellows, the bellows picking part returns to its original position and no longer clamps the bellows, the pressing part descends and presses the clamp downward, the lower end of the bellows passes through the clamp sleeve and is arranged on the fuel pump, the driving structure is simple, the operation is convenient, the structural layout is reasonable, and the driving parts do not affect each other.

[0017] The present invention is further configured as follows: a clamp placing plate, a first guide member and a fifteenth driving member for driving the clamp placing plate to rise and fall are provided in the clamp placing area; the clamp placing plate is slidably arranged on the first guide member, and a positioning column for positioning the clamp is provided on the clamp placing plate; a bellows placing plate, a second guide member and a sixteenth driving member for driving the bellows placing plate to rise and fall are provided in the bellows placing area; the bellows placing plate is slidably arranged on the second guide member, and a concave cavity for inserting the bellows is provided on the bellows placing plate.

[0018] By adopting the above-mentioned further arrangement, when the clamp and the bellows are assembled, the clamp placing plate and the bellows placing plate move upwards to be transferred toward the material picking part, so as to facilitate the material picking and assembly of the clamp and the bellows. The setting of the guide part ensures that the placing plate has good stability and precise positioning when it is raised and lowered, and does not affect the material picking of the material picking part.

[0019] The present invention is further configured as follows: the fuel pump clamping member includes two second clamping jaws arranged opposite to each other and a seventeenth driving member driving the two second clamping jaws to move toward or away from each other, the inner side walls of the two second clamping jaws are provided with an arc groove compatible with the fuel pump, the U-shaped plate is provided with a U-shaped groove compatible with the fuel pump, and the filter assembly station also includes an eighteenth driving member driving the U-shaped plate to move in the direction of the indexing turntable and a nineteenth driving member driving the second clamping member to rise and fall.

[0020] With the above-mentioned further arrangement, the second clamping claw clamps the fuel pump and places it on the filter, and then the U-shaped plate moves toward the fuel pump to clamp the fuel pump and fix it, and the second clamping piece moves downward to push the U-shaped plate to fix the fuel pump and the filter. The second clamping piece acts on the U-shaped plate instead of directly acting on the fuel pump to avoid damage to the fuel pump. At the same time, the U-shaped plate can fix the fuel pump to avoid displacement of the fuel pump when the second clamping piece is working, resulting in unqualified assembly between the fuel pump and the filter.

[0021] The present invention is further provided with a correction assembly on the first mounting frame, the correction assembly includes a twentieth driving member, a twenty-first driving member and two correction clamps, the twentieth driving member is fixedly arranged on the first mounting frame, the twenty-first driving member is connected to the output shaft of the twentieth driving member, and the two correction clamps are connected to the output shaft of the twenty-first driving member.

[0022] By adopting the above-mentioned further configuration, the position of the fuel pump can be corrected, so that the riveting position is accurate, and the fuel pump position is prevented from being offset, which affects the riveting effect.

[0023] The present invention is further configured as follows: two clamp clamping stations are provided, and the two clamp clamping stations have the same structure. A controller is also provided on the machine platform, and each driving member is electrically connected to the controller.

[0024] With the above-mentioned further arrangement, the two clamp clamping stations are adapted to different types of fuel pumps. Since the clamp fixing positions are different for different types, the corresponding clamp clamping station is started according to the fuel pump model, while the other station is suspended. The practicability is high, and the controller has a human-machine interface for visual control operation. Various parameters are set on the controller before work, such as the running trajectory and movement speed of the driving part, so that the assembly machine can run stably and smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall schematic diagram of a specific embodiment of the present invention;

[0026] Figure 2 A top view of a specific embodiment of the present invention;

[0027] Figure 3 It is a schematic diagram of a material tray of a specific embodiment of the present invention;

[0028] Figure 4 It is a schematic diagram of a clamp placement plate according to a specific embodiment of the present invention;

[0029] Figure 5 It is a schematic diagram of a bellows placement plate according to a specific embodiment of the present invention;

[0030] Figure 6 It is a schematic diagram of a wire pressing station of a specific embodiment of the present invention;

[0031] Figure 7 It is a schematic diagram of a riveting station of a specific embodiment of the present invention;

[0032] Figure 8 It is a schematic diagram of a brush cover feeding mechanism according to a specific embodiment of the present invention;

[0033] Fig. 9 It is a schematic diagram of a brush cover assembly mechanism according to a specific embodiment of the present invention;

[0034] Fig.10 It is a schematic diagram of a clamp bellows assembly station according to a specific embodiment of the present invention;

[0035] Fig.11 is a top view of a first clamping jaw according to a specific embodiment of the present invention;

[0036] Fig.12 It is a schematic diagram of a clamp pressing station of a specific embodiment of the present invention;

[0037] Fig.13It is a schematic diagram of a filter assembly station according to a specific embodiment of the present invention;

[0038] Fig.14 The figure is a block diagram of an electrical control system for automatic assembly of fuel pump accessories according to a specific embodiment of the present invention.

[0039] In the figure, 1, machine; 2, indexing turntable; 21, material tray; 211, fuel pump placement area; 212, clamp placement area; 2121, clamp placement plate; 2122, first guide; 2123, fifteenth drive member; 2124, positioning column; 213, bellows placement area; 2131, bellows placement plate; 2132, second guide; 2133, sixteenth drive member; 2134, concave cavity; 214, filter placement area; 3, Wire assembly station; 32, wire pressing block; 321, pressing guide plate; 322, guide shaft; 33, second drive member; 34, second mounting frame; 341, guide bearing; 4, hot riveting station; 41, hot riveting member; 411, heating core rod; 412, heating plate; 413, heat insulation board; 414, hot riveting guide plate; 42, third drive member; 43, first mounting frame; 431, correction assembly; 4311, twentieth drive member; 43 12. The twenty-first driving member; 4313. Correction clamp; 5. Brush cover feeding assembly station; 51. Brush cover feeding mechanism; 511. Vibration plate; 512. Push rod; 5121. Limit plate; 513. Feeding member; 514. Brush cover placement plate; 515. The seventh driving member; 516. Limiting member; 52. Brush cover assembly mechanism; 521. Pressing member; 522. The eighth driving member; 6. Bellows clamp assembly station; 60. The third installation Rack; 61. Clamp material taking part; 62. Bellows material taking part; 63. First clamping part; 64. Ninth driving part; 65. Tenth driving part; 66. Eleventh driving part; 67. Twelfth driving part; 68. Thirteenth driving part; 69. Fourteenth driving part; 7. Clamp clamping station; 71. First clamping jaw; 73. Fifth driving part; 74. Sixth driving part; 8. Filter assembly station; 81. Fuel pump clamping part; 811. Second clamping jaw; 82. U-shaped plate; 83. Second clamping part; 84. Eighteenth driving part; 85. Nineteenth driving part; 86. Seventeenth driving part; 9. Loading and unloading stations; 10. Controller. DETAILED DESCRIPTION

[0040] The technical scheme in this embodiment will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that in the description of the present invention, all directional indications (such as up, down, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0042] In addition, in the present invention, the descriptions such as "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. In the description of the present invention, the meaning of "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0043] In addition, the technical solutions between the various embodiments of the present invention may be combined with each other, but this must be based on the fact that they can be implemented by those skilled in the art. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0044] like Figure 1-2 As shown, an automatic assembly machine for fuel pump accessories includes a machine platform 1, a dividing turntable 2 arranged on the machine platform 1, and a first driving member for driving the dividing turntable 2 to rotate. The driving members herein may be cylinders, electric cylinders, or motors, etc., preferably cylinders, which have a simpler structure and high working efficiency. The dividing turntable 2 is provided with a plurality of detachable material trays 21, each material tray 21 includes a fuel pump placement area 211, a clamp placement area 212, a bellows placement area 213, and a filter placement area 214. A wire assembly station 3, a hot riveting station 4, a brush cover loading and assembly station 5, a bellows clamp assembly station 6, a clamp clamping station 7, a filter assembly station 8, and loading and unloading stations 9 are arranged on the machine platform 1 along the circumference of the dividing turntable 2. Unassembled accessories, fuel pumps, and assembled fuel pumps are all loaded or unloaded from the loading and unloading stations 9, which may be performed manually or by a robot.

[0045] like Figure 3-5As shown, the clamp placement area 212 is provided with a clamp placement plate 2121, a first guide member 2122 and a fifteenth driving member 2123 for driving the clamp placement plate 2121 to rise and fall. The clamp placement plate 2121 is slidably arranged on the first guide member 2122. The clamp placement plate 2121 is provided with a positioning column 2124 for positioning the clamp. The bellows placement area 213 is provided with a bellows placement plate 2131, a second guide member 2132 and a driving member 2123 for driving the bellows placement plate 2131. The sixteenth driving member 2133 is lifted and lowered, and the bellows placing plate 2131 is slidably arranged on the second guide member 2132. The bellows placing plate 2131 is provided with a concave cavity 2134 for inserting the bellows. When the clamp and the bellows are assembled, the clamp placing plate 2121 and the bellows placing plate 2131 move upward to transfer them to the direction of the material picking part, so as to facilitate the material picking and assembly of the clamp and the bellows. The setting of the guide member ensures that the placing plate has good stability and precise position when being lifted and lowered, and does not affect the material picking of the material picking part.

[0046] like Figure 6 As shown, the wire assembly station 3 includes a wire clamping member, a wire pressing block 32, and a second driving member 33 that drives the wire pressing block 32 to rise and fall. The wire assembly station 3 is provided with a second mounting frame 34, and the second driving member 33 is fixedly arranged on the second mounting frame 34. The wire clamping member is also operated by the driving member to clamp the wire on the material tray 21 and place it on the fuel pump, and then press it through the wire pressing block 32. The second mounting frame 34 is provided with a guide bearing 341, and the wire pressing block 32 is provided with a pressing guide Plate 321, the output shaft of the second driving member 33 is connected to the press-fitting guide plate 321, and the press-fitting guide plate 321 is connected to the guide shaft 322, and the guide shaft 322 is slidably arranged in the guide bearing 341, so that the structures of various components on the wire assembly station 3 are stable. When the second driving member 33 drives the press-fitting guide plate 321 to rise and fall, the guide shaft 322 rises and falls synchronously and is lifted and lowered in the guide bearing 341, so that the structure of the wire press-fitting block 32 is stable and the position is accurate when it is raised and lowered, thereby making the wire assembly position accurate, which is convenient for subsequent hot riveting.

[0047] like Figure 7As shown, the hot riveting station 4 includes a hot riveting member 41 and a third driving member 42 for driving the hot riveting member 41 to rise and fall. The hot riveting station 4 is provided with a first mounting frame 43, and the third driving member 42 is fixedly arranged on the first mounting frame 43. The hot riveting member 41 includes a heating core rod 411, a heating plate 412, a heat insulation plate 413 and a hot riveting guide plate 414. The hot riveting guide plate 414 is connected to the output shaft of the third driving member 42, the heat insulation plate 413 is arranged at the lower end of the hot riveting guide plate 414, the heating plate 412 is installed on the heat insulation plate 413, the heating core rod 411 is connected to the heating plate 412, and is located above the fuel pump placement area 211. The third driving member 42 drives the heating core rod 411 to descend so that it contacts the wire, and the wire is hot-riveted and fixed to the fuel pump. The heating plate 4 A heat insulating plate 413 is arranged between 12 and the hot riveting guide plate 414 to prevent the temperature of the heating plate 412 from being too high and affecting the third driving member 42. The temperature and time of the heating core rod 411 and the heating plate 412 can be set by oneself; a correction component 431 is also arranged on the first mounting frame 43, and the correction component 431 includes a twentieth driving member 4311, a twenty-first driving member 4312 and two correction clamps 4313. The twentieth driving member 4311 is fixedly arranged on the first mounting frame 43, the twenty-first driving member 4312 is connected to the output shaft of the twentieth driving member 4311, and the two correction clamps 4313 are connected to the output shaft of the twenty-first driving member 4312, so that the position of the fuel pump can be corrected, so that the riveting position is accurate, and the position of the fuel pump is prevented from being offset and affecting the riveting effect.

[0048] like Figure 8-9As shown, the brush cover feeding and assembly station 5 includes a brush cover feeding mechanism 51 and a brush cover assembly mechanism 52. The brush cover feeding mechanism 51 includes a vibration plate 511, a push rod 512, a feeding piece 513 and a brush cover placement plate 514. The feeding piece 513 is set by a suction cup. The push rod 512 is slidably arranged at the discharge port of the vibration plate 511, and the push rod 512 is provided with a receiving groove for accommodating the brush cover. The brush cover placement plate 514 is provided with a brush cover placement groove. The brush cover feeding mechanism 51 also includes a seventh driving member 515 for driving the brush cover placement plate 514 to slide toward the indexing turntable 2. The brush cover assembly mechanism 52 includes a pressing piece 521 and an eighth driving piece 522 for driving the pressing piece 521 to rise and fall. The pressing piece 521 is located above the indexing turntable 2 and corresponds to the position of the fuel pump placement area 211. The vibration plate 511 realizes the loading of brush covers one by one. The frontmost brush cover is pushed into the receiving groove of the push rod 512 by the rear end brush cover, and then moves toward the upper material piece 513. When the push rod 512 slides, the side wall of the push rod 512 blocks the discharge port to prevent the brush cover at the discharge port of the vibration plate 511 from falling. The loading piece 513 picks up the brush cover in the receiving groove and puts it into the brush cover placement groove of the brush cover placement plate 514. There are two brush cover placement grooves. After the brush covers are placed in the two brush cover placement grooves, the brush cover placement plate 514 transports them to the material tray 21 and is located above the fuel pump. The pressing piece 521 presses down to push the brush covers in the placement grooves onto the brush covers. The brush cover placement plate 514 returns to its original position, and the pressing piece 521 continues to press down to press the brush covers and the fuel pump tightly. The work efficiency is high, and the brush cover placement plate 514 is added between the loading piece 513 and the material tray 21, which can reduce the movement path of the loading piece 513 and make the position of the brush cover more accurate when placing the fuel pump. The brush cover loading mechanism 51 also includes two phases. The limit members 516 are arranged, and the two limit members 516 are located on the side of the push rod 512 away from the vibration plate 511. The push rod 512 is provided with a limit plate 5121, and the limit plate 5121 is slidably arranged between the two limit members 516. It also includes a sensor for detecting whether there is a brush cover in the accommodating groove, and limits the movement of the push rod 512 to prevent it from sliding excessively, affecting the picking up of the loading member 513, or causing the accommodating groove and the discharge port to be misaligned, making it impossible to load the brush cover. When the sensor senses that there is a brush cover in the accommodating cavity, the loading member 513 works and moves toward the accommodating groove to pick up the brush cover to avoid misoperation.

[0049] like Fig.10As shown, the bellows clamp assembly station 6 includes a clamp picking piece 61 for clamping the clamp, a bellows picking piece 62 for clamping the bellows, a clamping piece for clamping the bellows, and a first pressing piece 63 for pressing the bellows and the clamp, and the bellows clamp assembly station 6 also includes a ninth driving piece 64 for driving the clamp picking piece 61 to slide between the fuel pump placement area 211 and the clamp placement area 212, a tenth driving piece 65 for driving the clamp picking piece 61 to slide in the direction of the indexing turntable 2, an eleventh driving piece 66 for driving the bellows picking piece 62 to slide between the fuel pump placement area 211 and the bellows placement area 213, a twelfth driving piece 67 for driving the bellows picking piece 62 to slide in the direction of the indexing turntable 2, and a clamping piece 68 for driving the clamping piece to slide in the direction of the indexing turntable 2. The thirteenth driving member 68 slides in the direction of the turntable 2 and the fourteenth driving member 69 drives the clamping member to rise and fall, and a third mounting frame 60 is provided on the bellows clamp assembly station 6, and the twelfth driving member 67, the thirteenth driving member 68 and the fourteenth driving member 69 are fixedly arranged on the third mounting frame 60, and the clamp and the bellows are respectively picked up by two picking members, and transferred to the fuel pump assembly position, the clamp is located below the bellows, and the clamping member moves toward the indexing turntable 2 to clamp the upper end of the bellows, the bellows picking member 62 returns to its original position and no longer clamps the bellows, the clamping member descends and presses the clamping member downward, and the lower end of the bellows passes through the clamp sleeve and is arranged on the fuel pump, the driving structure is simple, the operation is convenient, the structural layout is reasonable, and the driving members do not affect each other.

[0050] like Figure 11-12 As shown, the clamp clamping station 7 includes two first clamping jaws 71 arranged opposite to each other, a fourth driving member driving the two first clamping jaws 71 to move up and down toward or away from each other, a fifth driving member 73 driving the first clamping jaw 71 to move up and down, and a sixth driving member 74 driving the first clamping jaw 71 to slide toward the dividing turntable 2. The clamp clamping station 7 is provided with two, and the two clamp clamping stations have the same structure. The clamp clamping stations are suitable for fuel pumps of different models. The clamp fixing positions are different for different models. Therefore, according to the fuel pump model, the corresponding clamp clamping station is started, and the other station is suspended, which is highly practical.

[0051] like Fig.13As shown, the filter assembly station 8 includes a fuel pump clamping member 81, a U-shaped plate 82 and a second pressing member 83 for clamping the fuel pump in the fuel pump placement area 211 to the filter placement area 214. The fuel pump clamping member 81 includes two second clamping jaws arranged opposite to each other, and the inner side walls of the two second clamping jaws are provided with an arc groove adapted to the fuel pump. The U-shaped plate 82 is provided with a U-shaped groove adapted to the fuel pump. The filter assembly station 8 also includes a seventeenth driving member 86 for driving the fuel pump clamping member 81 to move in the direction of the indexing turntable 2, an eighteenth driving member 86 for driving the U-shaped plate 82 to move in the direction of the indexing turntable 2. The driving member 84 and the nineteenth driving member 85 that drives the second clamping member 83 to rise and fall, the second clamping claw clamps the fuel pump and places it on the filter, and then the U-shaped plate 82 moves toward the fuel pump, clamps the fuel pump, and fixes it, and the second clamping member 83 moves downward to push the U-shaped plate 82 to fix the fuel pump and the filter, and the second clamping member 83 acts on the U-shaped plate 82 instead of directly acting on the fuel pump to avoid damage to the fuel pump. At the same time, the U-shaped plate 82 can fix the fuel pump to avoid displacement of the fuel pump when the second clamping member 83 is working, resulting in unqualified assembly between the fuel pump and the filter.

[0052] The machine 1 is also provided with a controller 10, and each driving part is electrically connected to the controller 10. The sensor is also connected to the controller 10, and the signal is transmitted to the controller 10. The controller 10 then controls the corresponding driving part to work. The controller 10 has a human-machine interface for visual control operation. Various parameters are set on the controller 10 before work, such as the running trajectory and movement speed of the driving part, so that the assembly machine can run stably and smoothly. When the assembly machine is used, the material tray 21 that matches the model of the fuel pump to be assembled is fixed on the dividing turntable 2 with a locating pin, and the model and specification to be assembled are selected on the controller 10, and the heating plate is heated to the set temperature, and the wire, bellows, clamp, filter and unpressed fuel pump are placed at the corresponding position of the material tray 21, and the switch is started, and each station starts to work and automatically assembles. Each station can be started and closed independently.

[0053] The accessories on the fuel pump can be automatically assembled, which greatly improves the assembly efficiency and has a good assembly effect. The first driving member drives the indexing turntable to rotate, and passes through each station in turn. The fuel pump and the accessories are placed in the corresponding placement area from the loading and unloading stations, and then the wires are assembled to the fuel pump through the wire assembly station, and then hot riveted at the hot riveting station, so that the wires are hot-riveted and fixed on the fuel pump, and then go to the brush cover loading and assembly station to assemble the brush cover to the fuel pump, and then the clamp and the bellows are assembled, and then the clamp is clamped at the clamp clamping station, and then the filter assembly station is transferred to the fuel pump assembly assembly with the accessories installed to the filter placement area, and then accurately pressed on the filter, and finally taken away from the loading and unloading stations, and a new fuel pump and accessories are placed on this material tray, so that the fuel pump accessories are installed reciprocatingly, and the material tray is detachably installed on the indexing plate and can be replaced. It can be replaced according to the size of the fuel pump, so that the assembly machine is suitable for the assembly of fuel pump accessories of different models and sizes, and has high practicality.

[0054] Fig.14 The figure shows the block diagram of the electrical control system for the automatic assembly of fuel pump accessories. Each workstation operates independently and can be turned off or on through the human-machine interface. If an abnormality occurs in each action of each workstation, the control system will alarm and suspend the action at the same time. After the abnormality is manually cleared and the clear abnormality pop-up window is clicked on the human-machine interface, the system will run automatically.

[0055] Brush cover feeding and assembly unit: When this type of workstation is selected, the controller determines and automatically replenishes the missing workpiece. This unit uses vibration to select materials, sensors determine the incoming materials, suction cups transfer materials, pneumatic pressing materials and a series of action processes, and the program memorizes the number of assembly positions; there are abnormal alarm prompts for lack of material, undervoltage and overvoltage (which can be released after manual exclusion).

[0056] Hot riveting temperature control unit: The set temperature must be reached within the set time, otherwise an abnormal prompt will be given. During use, if the temperature does not exceed the lower or upper limit within the specified time, the system will give an alarm prompt and prohibit operation to prevent the production of defective products.

[0057] Rotary positioning unit (i.e. indexing turntable): When all station actions are completed and the actuators are in their original positions, the system gives a low-speed-high-speed-low-speed positioning-stop rotation instruction for fast and accurate positioning.

[0058] This electrical control system has the functions of model selection and output setting. When the output reaches a certain level, the system will prompt a pop-up window to switch to manual operation. The completed amount must be manually reset to zero before continuous operation can continue. The total output and the output of the shift are synchronously recorded in the historical output database for later query.

Claims

1. An automatic assembly machine for fuel pump accessories, characterized in that: The invention comprises a machine platform (1), a dividing turntable (2) arranged on the machine platform (1), and a first driving member for driving the dividing turntable (2) to rotate; the dividing turntable (2) is provided with a plurality of detachable material trays (21); each material tray (21) comprises a fuel pump placement area (211), a clamp placement area (212), a bellows placement area (213), and a filter placement area (214); and a wire assembly station (314) is provided on the machine platform (1) along the circumference of the dividing turntable (2). ), a hot riveting station (4), a brush cover loading and assembly station (5), a bellows clamp assembly station (6), a clamp clamping station (7), a filter assembly station (8) and a loading and unloading station (9), the wire assembly station (3) comprising a wire pressing block (32) and a second driving member (33) for driving the wire pressing block (32) to rise and fall, the hot riveting station (4) comprising a hot riveting member (41) and a third driving member ( 42), the brush cover feeding and assembly station (5) comprises a brush cover feeding mechanism (51) and a brush cover assembly mechanism (52), the bellows clamp assembly station (6) comprises a clamp picking piece (61) for clamping the clamp, a bellows picking piece (62) for clamping the bellows, a clamping piece for clamping the bellows, and a first pressing piece (63) for pressing the bellows and the clamp, the clamp clamping station (7) comprises two first clamps arranged opposite to each other The filter assembly station (8) comprises a fuel pump clamping member (81) for clamping the fuel pump in the fuel pump placement area (211) to the filter placement area (214), a U-shaped plate (82), and a second pressing member (83).

2. The automatic assembly machine for fuel pump accessories according to claim 1, characterized in that: A first mounting frame (43) is provided on the hot riveting station (4); the third driving member (42) is fixedly mounted on the first mounting frame (43); the hot riveting member (41) comprises a heating core rod (411), a heating plate (412), a heat insulation plate (413) and a hot riveting guide plate (414); the hot riveting guide plate (414) is connected to an output shaft of the third driving member (42); the heat insulation plate (413) is arranged at a lower end of the hot riveting guide plate (414); the heating plate (412) is mounted on the heat insulation plate (413); the heating core rod (411) is connected to the heating plate (412) and is located above the fuel pump placement area (211).

3. The automatic assembly machine for fuel pump accessories according to claim 1 or 2, characterized in that: The wire assembly station (3) is provided with a second mounting frame (34), the second driving member (33) is fixedly arranged on the second mounting frame (34), the second mounting frame (34) is provided with a guide bearing (341), the wire pressing block (32) is provided with a pressing guide plate (321), the output shaft of the second driving member (33) is connected to the pressing guide plate (321), the pressing guide plate (321) is connected to a guide shaft (322), and the guide shaft (322) is slidably arranged in the guide bearing (341).

4. The automatic assembly machine for fuel pump accessories according to claim 1 or 2, characterized in that: The brush cover feeding mechanism (51) comprises a vibration plate (511), a push rod (512), a feeding piece (513) and a brush cover placement plate (514); the push rod (512) is slidably arranged at the discharge port of the vibration plate (511), and a receiving groove for accommodating the brush cover is provided on the push rod (512); the brush cover placement plate (514) is provided with a brush cover placement groove; the brush cover feeding mechanism (51) further comprises a seventh driving piece (515) for driving the brush cover placement plate (514) to slide in the direction of the indexing turntable (2); the brush cover assembly mechanism (52) comprises a pressing piece (521) and an eighth driving piece (522) for driving the pressing piece (521) to rise and fall; the pressing piece (521) is located above the indexing turntable (2) and corresponds to the position of the fuel pump placement area (211).

5. The automatic assembly machine for fuel pump accessories according to claim 4, characterized in that: The brush cover feeding mechanism (51) further comprises two limiting members (516) arranged opposite to each other, the two limiting members (516) being located on a side of the push rod (512) away from the vibration plate (511), the push rod (512) being provided with a limiting plate (5121), the limiting plate (5121) being slidably arranged between the two limiting members (516), and further comprising a sensor for detecting whether there is a brush cover in the receiving groove.

6. The automatic assembly machine for fuel pump accessories according to claim 1 or 2, characterized in that: The bellows clamp assembly station (6) further comprises a ninth driving member (64) for driving the clamp material taking member (61) to slide between the fuel pump placement area (211) and the clamp placement area (212), a tenth driving member (65) for driving the clamp material taking member (61) to slide in the direction of the indexing turntable (2), an eleventh driving member (66) for driving the bellows material taking member (62) to slide between the fuel pump placement area (211) and the bellows placement area (213), and a second driving member (67) for driving the bellows material taking member (62) to slide between the fuel pump placement area (211) and the bellows placement area (213). A twelfth driving member (67) for driving the tube picking member (62) to slide in the direction of the indexing turntable (2), a thirteenth driving member (68) for driving the clamping member to slide in the direction of the indexing turntable (2), and a fourteenth driving member (69) for driving the pressing member to rise and fall. A third mounting frame (60) is provided on the corrugated tube clamp assembly station (6), and the twelfth driving member (67), the thirteenth driving member (68), and the fourteenth driving member (69) are fixedly arranged on the third mounting frame (60).

7. The automatic assembly machine for fuel pump accessories according to claim 6, characterized in that: The clamp placement area (212) is provided with a clamp placement plate (2121), a first guide member (2122) and a fifteenth drive member (2123) for driving the clamp placement plate (2121) to rise and fall; the clamp placement plate (2121) is slidably arranged on the first guide member (2122); the clamp placement plate (2121) is provided with a positioning column (2124) for positioning the clamp; the bellows placement area (213) is provided with a bellows placement plate (2131), a second guide member (2132) and a sixteenth drive member (2133) for driving the bellows placement plate (2131) to rise and fall; the bellows placement plate (2131) is slidably arranged on the second guide member (2132); the bellows placement plate (2131) is provided with a concave cavity (2134) for inserting the bellows.

8. The automatic assembly machine for fuel pump accessories according to claim 1 or 2, characterized in that: The fuel pump clamping member (81) comprises two second clamping jaws (811) arranged opposite to each other and a seventeenth driving member (86) for driving the two second clamping jaws (811) to move toward or away from each other, the inner side walls of the two second clamping jaws (811) are provided with arc grooves adapted to the fuel pump, the U-shaped plate (82) is provided with a U-shaped groove adapted to the fuel pump, and the filter assembly station (8) further comprises an eighteenth driving member (84) for driving the U-shaped plate (82) to move in the direction of the indexing turntable (2) and a nineteenth driving member (85) for driving the second pressing member (83) to move up and down.

9. The automatic assembly machine for fuel pump accessories according to claim 2, characterized in that: The first mounting frame (43) is also provided with a correction component (431), the correction component (431) comprising a twentieth driving member (4311), a twenty-first driving member (4312) and two correction clamps (4313), the twenty-first driving member (4311) being fixedly arranged on the first mounting frame (43), the twenty-first driving member (4312) being connected to the output shaft of the twentieth driving member (4311), and the two correction clamps (4313) being connected to the output shaft of the twenty-first driving member (4312).

10. The automatic assembly machine for fuel pump accessories according to claim 1 or 2, characterized in that: The clamp clamping stations (7) are provided with two, and the two clamp clamping stations have the same structure. The machine platform (1) is also provided with a controller (10), and each driving component is electrically connected to the controller (10).

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