Automatic assembly equipment and method for fuel pump rear end cover assembly

Abstract

The present application relates to the technical field of rear end cover assembly equipment, in particular to an automatic assembly equipment and method for fuel pump rear end cover assembly, the automatic assembly equipment comprises a rack, the rear end cover assembly comprises an inner core piece and an outer cover piece arranged on the inner core piece; the outer cover piece is provided with mounting hole one and mounting hole two, the mounting hole one is provided with an arc chamfer, and the mounting hole two is provided with an array of buckling points; the rack is sequentially provided with assembly table one, assembly table two and assembly table three, and a plurality of conveying lines are fixedly arranged on the rack, and the method prepares the rear end cover assembly through three assembly operations and then automatically discharges the rear end cover assembly. The automatic assembly equipment, through intermittent sequential feeding, sequentially moves the rear end cover assembly to the three assembly tables, uses high-precision assembly components to sequentially assemble each part to the rear end cover assembly, ensures the reliability and precision of assembly, and the assembly process is highly automated and stable and reliable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rear end cover assembly equipment, in particular to an automatic assembly equipment for a fuel pump rear end cover assembly and a method thereof. BACKGROUND

[0002] The fuel pump is located in the vehicle fuel tank and works when the engine is started and when the engine is running, sucking fuel from the fuel tank and delivering it to the fuel supply pipe.

[0003] In the prior art, such as the fuel pump rear end cover with integrated brush holder function disclosed in application No. 201420502406.5, the rear end cover includes a valve body for installing a choke valve and a through hole for installing an electrode, and the rear end cover is also provided with a special-shaped hole for installing an inductor coil, a brush holder for installing an electric brush, a support for installing an electric brush spring, a bearing seat for installing a bearing, and a groove for installing inductor coil enameled wire.

[0004] In the prior art, such as the automatic production line for assembling an automobile fuel pump disclosed in application No. 2020205738484, the rear end cover assembly includes a rear end cover feeding part, a rear end cover transfer part, a resistance testing part, an electrode protection sleeve supply part, an electrode protection sleeve pressing part, a copper-based bearing supply part, a copper-based bearing pressing part, a choke plug supply part, a choke spring supply part, a choke support supply part, an indexing disc, a choke assembly pressing part, a hot riveting part, a reverse airtightness testing part, a positive airtightness testing part, and a finished product transfer part.

[0005] However, in the prior art, such as the fuel pump rear end cover and the automatic production line mentioned above, the structure of the fuel pump rear end cover is not convenient for actual automatic assembly operation, and the fuel pump rear end cover assembly has fine parts and requires high precision for assembly. The automatic production line cannot perform precise assembly operation on the fuel pump rear end cover, so an automatic assembly equipment for a fuel pump rear end cover assembly is needed to perform high-precision automatic assembly operation on the fuel pump rear end cover assembly. SUMMARY

[0006] The present application aims to provide an automatic assembly equipment for a fuel pump rear end cover assembly and a method thereof to solve the problems in the prior art.

[0007] The object of the present application can be achieved by the following technical solutions:

[0008] An automatic assembly equipment for a fuel pump rear end cover assembly, the automatic assembly equipment being used for assembling a rear end cover assembly, the automatic assembly equipment comprising a rack, the rear end cover assembly comprising an inner core piece and an outer cover piece arranged on the inner core piece.

[0009] The outer cover is provided with mounting hole one and mounting hole two to be assembled, the mounting hole one is provided with arc chamfer for fixing the inner part, and the mounting hole two is provided with arrayed buckle points for fixing the inner part.

[0010] The rack is sequentially provided with assembly table one for assembling the mounting hole one, assembly table two for assembling the mounting hole two, and assembly table three for assembling the inner core and the outer cover, and the rack is provided with several conveying lines for moving the components of the rear end cover assembly.

[0011] Further, the mounting hole one is fixedly provided with a thimble, the thimble is sleeved with a plastic part, and the thimble is provided with a ball head away from the plastic part, and the ball head is located at the bottom of the mounting hole one.

[0012] The mounting hole two is provided with a ball block, a micro spring and a hollow circular plate, the ball block is arranged at the bottom of the mounting hole two, the micro spring is located on the ball block, and one end of the micro spring abuts against the hollow circular plate.

[0013] Further, the rack is fixedly provided with a sliding table one near one end of the assembly table one, the sliding table one is slidably provided with a sliding table two, the sliding table two is slidably provided with a gas cylinder one, the output end of the gas cylinder one is connected with a clamp for clamping the outer cover feeding, and the rack is fixedly provided with several vibration feeding trays for storing parts.

[0014] Further, the assembly table one is fixedly provided with a transfer part, the transfer part is communicated with the vibration feeding tray provided with the thimble, the transfer part is slidably provided with a distribution block for moving the thimble, the assembly table one is fixedly connected with a sliding table three, the sliding table three is slidably provided with a gas cylinder four, and the output end of the gas cylinder four is connected with a suction nozzle for moving the thimble.

[0015] The assembly table one is fixedly connected with a stand on one side of the sliding table three, the stand is rotatably provided with a clamping part one for turning over the thimble, the assembly table one is fixedly connected with a sliding table four on one side of the clamping part one, and the sliding table four is slidably provided with a gas cylinder five and a gas cylinder six.

[0016] Further, the output end of the gas cylinder five is connected with a clamp for feeding the plastic part, the vibration feeding tray storing the plastic part is located at one end of the sliding table four, the output end of the gas cylinder six is fixedly connected with a clamping part two, and the assembly table one is fixedly connected with a sliding table five for connecting and driving the stand to move.

[0017] The assembly table one is fixedly connected with a fixing frame on one side of the conveying line, the fixing frame is fixedly provided with a hydraulic cylinder one, the output end of the hydraulic cylinder one is fixedly connected with a hot melting rod for removing burrs inside the mounting hole one, and the assembly table one is fixedly connected with two hydraulic cylinders two, the output end of the hydraulic cylinder two is fixedly connected with a hot pressing block, and the hot pressing block is used for forming the arc chamfer on the mounting hole one by hot melting.

[0018] Further, two said conveying lines arranged in a same line are respectively arranged at one side of the assembly table one and one side of the assembly table three, two conveying lines arranged in parallel are fixedly connected to the assembly table two, a moving rod for conveying and moving parts is slidably connected to the conveying line, a plurality of object tables are fixedly connected to the moving rod in an array, a groove for loading parts is arranged on the object table, and a cylinder two for connecting and driving the moving rod is fixedly connected to the conveying line.

[0019] A column is fixedly connected to the conveying line, a cylinder three is fixedly connected to the column, a lifting plate is fixedly connected to an output end of the cylinder three, and two clamps for taking and placing parts on the object table are fixedly arranged on the lifting plate.

[0020] Further, two vibration loading plates for loading ball blocks and micro springs are fixedly connected to the assembly table two, two columns are fixedly connected between the two conveying lines on the assembly table two, a fixing frame is fixedly connected to the assembly table two, a hot melting rod for removing burrs inside the mounting hole two is arranged on the fixing frame, and the fixing frame is located between the conveying line and the hydraulic cylinder two.

[0021] A cylinder seven is fixedly connected to the assembly table two, a suction nozzle for moving the ball block is fixedly connected to an output end of the cylinder seven, a cylinder eight is fixedly connected to the assembly table two, a motor two for driving is connected to an output end of the cylinder eight, and a rotatable clamp three for clamping the micro spring is fixedly connected to an output end of the motor two.

[0022] Further, a cylinder nine is fixedly connected to the assembly table two and located at one side of the cylinder eight, a motor three for driving is fixedly connected to an output end of the cylinder nine, a clamp four is fixedly connected to an output end of the motor three, and the clamp four is used for clamping the outer cover member assembled with the micro spring.

[0023] A vibration loading plate for loading hollow circular pieces is fixedly connected to the assembly table two, a sliding table six is fixedly connected to the assembly table two, a movable cylinder ten is arranged on the sliding table six, a suction disc for sucking the hollow circular piece is fixedly connected to an output end of the cylinder ten, a cylinder eleven is fixedly connected to the assembly table three, and a hot melting pipe for hot melting treatment of the mounting hole two end portion is fixedly connected to an output end of the cylinder eleven.

[0024] A hydraulic cylinder three is fixedly connected to a side of the cylinder eleven away from the sliding table six, a pressing block is fixedly connected to an output end of the hydraulic cylinder three, and a plurality of protrusions for extruding the buckle point at the mounting hole two end portion after hot melting are fixedly connected to the pressing block.

[0025] Further, a guide rail is fixedly connected to the assembly table three, a moving seat is slidably arranged on the guide rail, a motor four is fixedly connected to the assembly table three, a lead screw for connecting and driving the moving seat to slide is fixedly connected to an output end of the motor four, and an object table for moving the inner core member is also arranged on the moving seat.

[0026] The assembling table three is fixed with a sliding table seven, a sliding table eight is slidably arranged on the sliding table seven, a cylinder twelve is fixed on the sliding table eight, and a clamping piece five for moving the outer cover and the inner core is fixed on the output end of the cylinder twelve.

[0027] The assembling table three is fixed with a hydraulic cylinder four on the side of the moving seat one, and a top block for assembling the outer cover and the inner core is fixed on the output end of the hydraulic cylinder four, a sliding table nine is fixed on the rack, a cylinder thirteen is slidably arranged on the sliding table nine, and a clamping piece six for finished product discharging is fixed on the output end of the cylinder thirteen.

[0028] A method of an automatic assembling equipment of a fuel pump rear end cover assembly, the method comprises the following steps:

[0029] S1, first assembly

[0030] The outer cover of the rear end cover assembly is conveyed to the side of the assembling table one along the conveying line, the mounting hole one on the outer cover is assembled with parts at the assembling table one, and the parts in the mounting hole one are fixed by heat melting and forming an arc chamfer.

[0031] S2, second assembly

[0032] The outer cover is moved to the assembling table two, the parts in the mounting hole two are assembled at the assembling table two, and the parts in the mounting hole two are fixed by heat melting and forming a buckle point.

[0033] S3, third assembly

[0034] The conveying line transmits the outer cover to the assembling table three, the outer cover and the inner core are assembled, tightly fixed, and then moved to the conveying line.

[0035] S4, blanking

[0036] The assembled rear end cover assembly is subjected to automatic blanking operation, and the rear end cover assembly is moved out of the assembling equipment.

[0037] The beneficial effects of the present application are as follows:

[0038] 1. The automatic assembling equipment of the present application, which is characterized in that the equipment is capable of stably moving the rear end cover assembly by intermittent feeding in sequence, moving the rear end cover assembly to three assembling tables in sequence, assembling each part on the rear end cover assembly in sequence by using high-precision assembling parts, ensuring the reliability and precision of assembly, and realizing high automation and stable and reliable assembly process.

[0039] 2、The automatic assembly equipment of the application, the assembled parts of the equipment are processed on the rear end cover assembly through hot melting and extrusion operation to form fixing buckles and arc chamfers, which simplifies the structure of the rear end cover assembly, facilitates the automatic assembly work of the rear end cover assembly, reduces the cost of assembly and fixation, and adds air tightness detection in the processing process to complete the assembly and detection work of the rear end cover assembly integrally.

[0040] 3、The method of the application has simple process, automatic assembly, simplifies the complex assembly work of the rear end cover assembly, utilizes the equipment to complete the assembly work of the rear end cover assembly orderly and reliably, improves the assembly efficiency of the rear end cover assembly, improves the assembly precision of the rear end cover assembly, and reduces the cost of production and assembly. BRIEF DESCRIPTION OF DRAWINGS

[0041] The application will be further described below in combination with the drawings.

[0042] Figure 1 is a partial structure diagram of the rear end cover assembly of the application;

[0043] Figure 2 is a sectional view of the rear end cover assembly of the application;

[0044] Figure 3 is a whole structure diagram of the assembly equipment of the application;

[0045] Figure 4 is a structure diagram of the assembly equipment of the application;

[0046] Figure 5 is a partial structure diagram of the assembly table of the application;

[0047] Figure 6 is a partial structure diagram of the assembly table of the application;

[0048] Figure 7 is a partial structure diagram of the assembly table of the application;

[0049] Figure 8 is a structure diagram of the assembly equipment of the application;

[0050] Figure 9 is a partial structure diagram of the assembly table of the application. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the application will be described clearly and completely below in combination with the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0052] An automatic assembling device for fuel pump rear end cover assembly, as shown in Figure 1 、 Figure 2 , the automatic assembling device comprises a carrier table 8, which carries parts of the rear end cover assembly and is mainly used for moving the parts, and the carrier table 8 is provided with a groove, the rear end cover assembly comprises an inner core part 9 and an outer cover part 90, and the outer cover part 90 and the inner core part 9 can be clamped into the groove on the carrier table 8, and the outer cover part 90 is sleeved on the inner core part 9, so that the outer cover part 90 and the inner core part 9 are assembled into an integrated whole.

[0053] The outer cover part 90 is provided with a mounting hole one 99 and a mounting hole two 96, a thimble 91 is fixedly arranged in the mounting hole one 99, a plastic part 92 is arranged on the thimble 91, the plastic part 92 is sleeved on one end of the thimble 91 and is slidably connected with the thimble 91, a ball head is arranged at an end of the thimble 91 away from the plastic part 92, the ball head abuts against the bottom of the mounting hole one 99, an arc chamfer 97 is formed by hot melting on the mounting hole one 99, the top end of the plastic part 92 is fixed by the arc chamfer 97, and then the plastic part 92 and the thimble 91 are assembled in the mounting hole one 99.

[0054] A ball block 93, a micro spring 94 and a hollow circular plate 95 are arranged in the mounting hole two 96, the ball block 93 is arranged at the bottom of the mounting hole two 96, the micro spring 94 is located on the ball block 93, one end of the micro spring 94 abuts against the ball block 93, and the other end abuts against the hollow circular plate 95, and an array of locking points 98 is formed by hot melting at the end of the mounting hole two 96, and in this embodiment, the locking points 98 are three.

[0055] The hollow circular plate 95 is pressed and fixed by the locking points 98, the hollow circular plate 95 is compressed downwardly to compress the micro spring 94, and the ball block 93, the micro spring 94 and the hollow circular plate 95 are assembled in the mounting hole two 96, and the automatic assembling device completes the assembly and processing of the above-mentioned components and automatically assembles the fuel pump rear end cover assembly.

[0056] As shown in Figure 3 、 Figure 4 、 Figure 8 , the automatic assembling device comprises a rack 1, the rack 1 is fixedly provided with an assembling table one 3, an assembling table two 5 and an assembling table three 6, the assembling table two 5 is arranged between the assembling table one 3 and the assembling table three 6, the assembling table one 3 is located at one end of the rack 1, and the assembling table three 6 is located at the other end of the rack 1.

[0057] One side of the assembling table one 3 and the assembling table three 6 is provided with a conveying line 4, and the two conveying lines 4 are arranged in parallel, and two conveying lines 4 are also fixedly arranged on the assembling table two 5 and are parallel to each other, and the conveying line 4 on the assembling table two 5 is arranged perpendicularly to the conveying line 4 on one side of the assembling table one 3.

[0058] A slide 11 is fixedly provided at one end of the frame 1 close to the assembly table 3, and a slide 2 12 is slidably provided on the slide 11. The slide 2 12 is arranged perpendicular to the slide 11 to perform loading operations on the outer cover 90. A cylinder 13 is slidably provided on the slide 2 12, and the output end of the cylinder 13 is connected to a clamp, which controls the outer cover 90 to be loaded onto the assembly table 3 through the clamp.

[0059] A plurality of vibrating loading trays 10 are fixedly provided on the frame 1 , and the plurality of vibrating loading trays 10 respectively store ejector pins 91 , plastic parts 92 , balls 93 , micro springs 94 and hollow discs 95 .

[0060] like Figure 6 As shown, a moving rod 42 is slidingly provided on the conveyor line 4, and an array-distributed loading platform 8 is fixedly provided on the moving rod 42. A cylinder 2 41 is fixedly provided on the conveyor line 4 and on one side of the moving rod 42. The cylinder 2 41 is arranged parallel to the moving rod 42, and the output end of the cylinder 2 41 is connected to the end of the moving rod 42. The moving rod 42 is driven by the cylinder 2 41 to slide on the conveyor line 4 to move the parts on the loading platform 8.

[0061] A column 43 is fixedly provided on the conveyor line 4, and a cylinder 3 44 is fastened on the column 43. The output end of the cylinder 3 44 is set vertically downward, and its output end is fixedly connected to a lifting plate 45. Two clamps are fixedly provided on the lifting plate 45. After the moving rod 42 moves, the clamp clamps the parts on the moving rod 42 and suspends the parts. Then, when the moving rod 42 retreats and resets, the clamp places the parts on the moving rod 42, and then the moving rod 42 moves to move the parts forward.

[0062] like Figure 5 As shown, a vibrating loading tray 10 storing ejectors 91 is fixedly provided on the assembly table 3, and a transfer piece 32 is fixedly provided on the assembly table 3 and located on one side of the vibrating loading tray 10. One side of the transfer piece 32 is connected to the vibrating loading tray 10, and a dividing block 33 is slidingly provided on the transfer piece 32. After an ejector 91 is stuck in the dividing block 33, the dividing block 33 slides to divide the material to the ejector 91, and a single loading ejector 91 is provided.

[0063] A slide 34 is fastened to the assembly table 3, and a cylinder 4 35 is slidably fixed on the slide 34. The output end of the cylinder 4 35 is vertically downward and toward the ejector pin 91 on the dividing block 33. The output end of the cylinder 4 35 is connected to a suction nozzle, which sucks the ball head at the end of the ejector pin 91 through the suction nozzle. The slide 34 controls the translation of the cylinder 4 35 to move the ejector pin 91.

[0064] A stand 36 is provided on the assembly table 3 and on one side of the slide 34. A clamping part 37 is rotatably provided on the stand 36. When the clamping part 37 rotates to the left, the suction nozzle places the ejector pin 91 on the clamping claw of the clamping part 37. Then, one side of the clamping part 37 is fixedly connected to the output end of the motor 1 provided on the stand 36, and the motor 1 controls the rotation of the clamping part 37.

[0065] A slide 4 38 is provided on the side of the clamping part 37 away from the slide 3 34, and a cylinder 5 381 and a cylinder 6 382 are slidingly provided on the slide 4 38. A vibrating loading tray 10 storing plastic parts 92 is provided at one end of the slide 4 38. The cylinder 5 381 is located at the vibrating loading tray 10, and the plastic part 92 discharged from the vibrating loading tray 10 is clamped by the clamp connected to the output end of the cylinder 5 381, and is moved to the ejector pin 91 on the clamping part 37 under the drive of the slide 4 38, completing the assembly operation of the plastic part 92 being fitted onto the ejector pin 91.

[0066] The output end of cylinder six 382 is connected to clamping part two 383. Slide five 361, which is arranged perpendicular to conveyor line 4, is fastened on assembly table one 3. Slide five 361 drives the stand 36 thereon to move horizontally, so that clamping part one 37 moves the ejector pin 91 with plastic part 92 to the bottom of clamping part two 383. Clamping part two 383 is used to extend into plastic part 92 to clamp ejector pin 91. Clamping part two 383 moves ejector pin 91 into mounting hole one 99.

[0067] A fixing frame 2 is fastened on the assembly table 3 and located on one side of the conveyor line 4. A hydraulic cylinder 21 is fixed on the fixing frame 2. The output end of the hydraulic cylinder 21 is connected to a hot melt rod 22. The hot melt rod 22 extends into the mounting hole 99 to process the inner wall of the mounting hole 99 of the outer cover 90 to be assembled, remove burrs in the mounting hole 99, and improve the smoothness of the hole wall when assembling parts in the mounting hole 99.

[0068] like Figure 6 As shown, two hydraulic cylinders 2 390 are fastened on the assembly table 1 3. The hydraulic cylinder 2 390 is located between the slide 4 38 and the assembly table 2 5 and is arranged on one side of the conveyor line 4. A hot pressing block 39 is vertically connected downward to the output end of the hydraulic cylinder 2 390. The hot pressing block 39 hot presses the end of the mounting hole 1 99 downward to form an arc chamfer 97, and fastens the ejector pin 91 and the plastic part 92 in the hole.

[0069] An airtightness detection structure can be provided at the hot pressing block 39, which is not shown in the figure. The airtightness detection structure is mainly used to perform airtightness detection on the mounting hole 99 during the hot pressing operation.

[0070] like Figure 6 、 Figure 7As shown, two vibration feeding trays 10 are fixed on the assembly table two 5, each of which is provided with ball blocks 93 and micro springs 94. Two conveying lines 4 are fixed on the assembly table two 5, and two vertical columns 43 are fixed between the two conveying lines 4. The clamp pair on one vertical column 43 takes and places the parts conveyed on the two conveying lines 4 in line, and the clamp pair on the other vertical column 43 takes and places the parts conveyed on the conveying line 4 on the assembly table two 5.

[0071] A fixing frame 2 is also fixed on the assembly table two 5. The hot melting rod 22 on the fixing frame 2 is used to remove burrs from the assembly hole two 96. The fixing frame 2 is located between the conveying line 4 and the hydraulic cylinder two 390. Then, the conveying line 4 on the assembly table two 5 moves to the fixing frame 2. The clamp pair on the vertical column 43 takes and places the parts from one conveying line 4 to another conveying line 4, completes the movement of the parts, and removes the burrs in the assembly hole two 96 before the parts inside the assembly hole two 96.

[0072] The parts move along with the conveying line 4 on the assembly table two 5 to the two vibration feeding trays 10 on the assembly table two 5. The air cylinder seven 51 is fixed on the assembly table two 5. The output end of the air cylinder seven 51 is connected with a suction nozzle. After the suction nozzle sucks the ball block 93, the ball block 93 is placed into the assembly hole two 96.

[0073] The air cylinder eight 52 is fixed on the assembly table two 5. The output end of the air cylinder eight 52 is connected with a motor two for driving. The output end of the motor two is connected with a clamping piece three 53. The clamping piece three 53 horizontally takes out the micro spring 94 conveyed out of the material. Then, the motor two drives the clamping piece three 53 to rotate to a vertical state, places the micro spring 94 into the assembly hole two 96, and places the micro spring 94 on the ball block 93.

[0074] The air cylinder nine 54 is fixed on the assembly table two 5 and between the two conveying lines 4. The output end of the air cylinder nine 54 is vertically and downwardly connected with a motor three 55 for driving. The output end of the motor three 55 is fixedly connected with a clamping piece four 56. The clamping piece four 56 moves the assembled micro spring 94 from one conveying line 4 to another conveying line 4.

[0075] The vibration feeding tray 10 provided with the hollow round piece 95 is fixed on the assembly table two 5 and close to one side of the assembly table three 6. The slide table six 57 is fixed on the assembly table two 5. The air cylinder ten 571 is slidingly arranged on the slide table six 57. The output end of the air cylinder ten 571 is connected with a suction disc 572. The suction disc 572 sucks and moves the hollow round piece 95 into the assembly hole two 96. The air cylinder eleven 58 is fixed on the assembly table three 6. The output end of the air cylinder eleven 58 is connected with a hot melting pipe 581. The hot melting pipe 581 is used to press down the hollow round piece 95 and heat the end of the assembly hole two 96.

[0076] Cylinder 11 58 is located on one side of slide 6 57 , and a hydraulic cylinder 3 590 is fixedly provided on the side of cylinder 11 58 away from slide 6 57 , and the output end of hydraulic cylinder 3 590 is fastened with a pressing block 591 , and a plurality of protrusions are fixedly provided on the side of the pressing block 591 , and the pressing block 591 is used to drive the protrusions to press down the newly heated mounting hole 2 96 to form a buckle point 98 , and the obtained buckle point 98 fixes the hollow disc 95 .

[0077] like Figure 7 As shown, a guide rail 62 is fixedly provided on the assembly table three 6, and a slidable moving seat 63 is connected to the guide rail 62. A motor four 60 is fixedly provided on the assembly table three 6, and the output end of the motor four 60 is connected to a screw 61. The screw 61 is threadedly connected to the moving seat 63. Rotating the screw 61 can control the moving seat 63 to slide on the guide rail 62. A loading platform 8 is also provided on the moving seat 63 for carrying the inner core 9.

[0078] A slide 7 64 is fixedly provided on the assembly table 3 6 and located on one side of the conveyor line 4, a slide 8 65 is slidingly provided on the slide 7 64, a cylinder 12 66 is fixedly provided on the slide 8 65, and the output end of the cylinder 12 66 is vertically downwardly connected to a clamping part 5 67, and the clamping part 5 67 is used to take out the outer cover part 90 on the conveyor line 4 and move the outer cover part 90 to the inner core part 9 on the movable seat 63.

[0079] A hydraulic cylinder four 68 is fastened on the assembly table three 6 and located between the movable seat 63 and the conveyor line 4. The output end of the hydraulic cylinder four 68 is vertically downward and is connected to a top block. The top block is located on the inner core member 9 and the outer cover member 90 on the movable seat 63 to press them firmly so that the inner core member 9 and the outer cover member 90 are tightly fastened to form the rear end cover assembly of the fuel pump. The rear end cover assembly assembled on the movable seat 63 is then moved to the conveyor line 4 by the clamping member five 67 for unloading and conveying.

[0080] A slide 9 600 is fixedly provided on the frame 1 and above the conveyor line 4 located at the assembly table 3 6. A cylinder 13 601 is slidably provided on the slide 9 600. The output end of the cylinder 13 601 is connected to a clamping part 602, which clamps and discharges the finished rear end cover assembly conveyed on the conveyor line 4 to complete the automatic unloading operation.

[0081] A method for automatically assembling equipment for a fuel pump rear end cover assembly, the method comprising the following steps:

[0082] S1. First assembly

[0083] The outer cover part 90 of the rear end cover assembly is conveyed along the conveyor line 4 to one side of the assembly table 3, and the parts are assembled on the mounting hole 99 on the outer cover part 90 at the assembly table 3, and the arc chamfer 97 is hot-melted to fix the parts in the mounting hole 99.

[0084] S2, second assembly

[0085] The cover 90 is moved to the assembly station two 5, and the assembly of the parts in the mounting hole two 96 is completed on the assembly station two 5, and the fixing mounting hole two 96 is fixed by the heat melting process of the buckle point 98.

[0086] S3, third assembly

[0087] The conveying line 4 transmits the cover 90 to the assembly station three 6, and the cover 90 is assembled with the inner core 9, and then is pressed and fixed, and is moved to the conveying line 4.

[0088] S4, blanking

[0089] The assembled rear end cover assembly is subjected to automatic blanking operation, and the rear end cover assembly is moved out of the assembly equipment.

[0090] In this embodiment, the cover 90 is sequentially conveyed along the conveying line 4 to different assembly stations, such as assembly station one 3, assembly station two 5, and assembly station three 6, and the parts in the mounting hole one 99 and the mounting hole two 96 are assembled, and the precise assembly process of the parts of the cover 90 is as follows: the thimble 91 in the mounting hole one 99 is first turned over, then the plastic part 92 is sleeved on the thimble 91, and then is installed into the mounting hole one 99, which improves the assembly accuracy and facilitates automatic assembly operation.

[0091] And the parts in the mounting hole two 96 are sequentially put into the mounting hole two 96, and the buckle point 98 for fixing is formed by heat melting and pressing, which is simple to assemble and accurate in assembly process. The cover 90 is sequentially conveyed and assembled, and the assembly process is efficient and reliable.

[0092] Finally, the cover 90 is pressed with the inner core 9 to quickly form the rear end cover assembly, and can be automatically blanked, and the multi-step assembly operation is completed on one equipment. The originally complicated manual assembly process is simply and efficiently completed on one equipment, which improves the processing efficiency and improves the assembly quality.

[0093] Moreover, the arc chamfer 97 is heat-melted on the mounting hole one 99 to fix the parts in the hole, and the buckle point 98 is heat-melted in the mounting hole two 96 to fix the parts in the hole, which is simple in structure, does not need additional fixing parts, is convenient to process and operate, and quickly processes to fix the assembled parts in the hole.

[0094] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means 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 application. In the specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Also, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0095] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. An automatic assembly apparatus of a fuel pump rear end cover assembly, the automatic assembly apparatus being used for assembling the rear end cover assembly, characterized in that, The automatic assembly device comprises a rack (1), a rear end cover assembly comprises an inner core piece (9) and an outer cover piece (90) arranged on the inner core piece (9); The outer cover piece (90) is provided with an installation hole one (99) and an installation hole two (96) to be assembled, the installation hole one (99) is provided with an arc chamfer (97) for fixing the inner part, and the installation hole two (96) is provided with a plurality of buckling points (98) for fixing the inner part; The rack (1) is sequentially provided with an assembly table one (3) for completing the assembly of the installation hole one (99), an assembly table two (5) for completing the assembly of the installation hole two (96), and an assembly table three (6) for assembling the inner core piece (9) and the outer cover piece (90), and a plurality of conveying lines (4) for moving the components of the rear end cover assembly are fixed on the rack (1); The rack (1) is fixedly provided with a sliding table one (11) near one end of the assembly table one (3), the sliding table one (11) is slidably provided with a sliding table two (12), the sliding table two (12) is slidably provided with a cylinder one (13), the output end of the cylinder one (13) is connected with a clamp for clamping the outer cover piece (90) feeding, and a plurality of vibrating feeding trays (10) for storing parts are fixed on the rack (1); The assembly table one (3) is fixedly provided with a transfer piece (32), the transfer piece (32) is communicated with the vibrating feeding tray (10) provided with a thimble (91), the transfer piece (32) is slidably provided with a distribution block (33) for moving the thimble (91), the assembly table one (3) is fixedly connected with a sliding table three (34), the sliding table three (34) is slidably provided with a cylinder four (35), and the output end of the cylinder four (35) is connected with a suction nozzle for moving the thimble (91); The assembly table one (3) is fixedly connected with an upright frame (36) on one side of the sliding table three (34), the upright frame (36) is rotatably provided with a clamping piece one (37) for turning over the thimble (91), the assembly table one (3) is fixedly connected with a sliding table four (38) on one side of the clamping piece one (37), and the sliding table four (38) is slidably provided with a cylinder five (381) and a cylinder six (382); The two conveying lines (4) arranged in line are respectively arranged on one side of the assembly table one (3) and one side of the assembly table three (6), the assembly table two (5) is fixedly connected with two conveying lines (4) arranged in parallel, the conveying line (4) is slidably connected with a moving rod (42) for conveying and moving parts, the moving rod (42) is fixedly connected with a plurality of object tables (8) arranged in an array, the object table (8) is provided with a groove for loading parts, and the conveying line (4) is fixedly connected with a cylinder two (41) for connecting and driving the moving rod (42); The conveying line (4) is fixedly connected with a vertical column (43), the vertical column (43) is fixedly connected with a cylinder three (44), the output end of the cylinder three (44) is fixedly connected with a lifting plate (45), and the lifting plate (45) is fixedly provided with two clamps for taking and placing parts on the object table (8).

2. An apparatus for automatically assembling a fuel pump rear end cover assembly as defined in claim 1, wherein The installation hole one (99) is internally fixedly provided with a thimble (91), the thimble (91) is sleeved with a plastic part (92), one end of the thimble (91) away from the plastic part (92) is provided with a ball head, and the ball head is located at the bottom of the installation hole one (99); The installation hole two (96) is internally provided with a ball block (93), a micro spring (94) and a hollow circular sheet (95), the ball block (93) is arranged at the bottom of the installation hole two (96), the micro spring (94) is located on the ball block (93), and one end of the micro spring (94) abuts on the hollow circular sheet (95).

3. An apparatus for automatically assembling a fuel pump rear end cover assembly as defined in claim 1, wherein The output end of the air cylinder five (381) is connected with a clamp for feeding the plastic part (92), a vibration feeding disc (10) for storing the plastic part (92) is located at one end of the sliding table four (38), the output end of the air cylinder six (382) is fixedly connected with a clamping piece two (383), and the assembling table one (3) is fixedly connected with a sliding table five (361) for connecting and driving the movement of the stand (36); The assembling table one (3) is fixedly connected with a fixing frame (2) on one side of the conveying line (4), the fixing frame (2) is fixedly provided with a hydraulic cylinder one (21), the output end of the hydraulic cylinder one (21) is fixedly connected with a hot melting rod (22) for removing burrs in the installation hole one (99), and the assembling table one (3) is fixedly connected with two hydraulic cylinders two (390), the output end of the hydraulic cylinder two (390) is fixedly connected with a hot pressing block (39), and the hot pressing block (39) is used for forming an arc chamfer (97) on the installation hole one (99) by hot melting.

4. An apparatus for automatically assembling a fuel pump rear end cover assembly as defined in claim 1, wherein The assembling table two (5) is fixedly connected with two vibration feeding discs (10) for feeding the ball block (93) and the micro spring (94), two stand columns (43) are fixedly connected between the two conveying lines (4) on the assembling table two (5), the assembling table two (5) is fixedly connected with a fixing frame (2), the fixing frame (2) is provided with a hot melting rod (22) for removing burrs in the installation hole two (96), and the fixing frame (2) is located between the conveying line (4) and the hydraulic cylinder two (390); The assembling table two (5) is fixedly connected with an air cylinder seven (51), the output end of the air cylinder seven (51) is fixedly connected with a suction nozzle for moving the ball block (93), the assembling table two (5) is fixedly connected with an air cylinder eight (52), the output end of the air cylinder eight (52) is connected with a motor two for driving, and the output end of the motor two is fixedly connected with a rotatable clamping piece three (53) for clamping the micro spring (94).

5. An apparatus for automatically assembling a fuel pump back end cover assembly as defined in claim 4 wherein, The assembling table two (5) is fixedly connected with an air cylinder nine (54) on one side of the air cylinder eight (52), the output end of the air cylinder nine (54) is fixedly connected with a motor three (55) for driving, the output end of the motor three (55) is fixedly connected with a clamping piece four (56), and the clamping piece four (56) is used for clamping an outer cover part (90) assembled with the micro spring (94). The assembling table two (5) is fixed with a vibrating feeding tray (10) for feeding the hollow circular sheet (95), the assembling table two (5) is fixed with a sliding table six (57), the sliding table six (57) is provided with a movable cylinder ten (571), the output end of the cylinder ten (571) is fixed with a suction cup (572) for sucking the hollow circular sheet (95), the assembling table three (6) is fixed with a cylinder eleven (58), the output end of the cylinder eleven (58) is fixed with a hot melting pipe (581) for hot melting the end of the mounting hole two (96); The cylinder eleven (58) is fixed with a hydraulic cylinder three (590) away from the sliding table six (57), the output end of the hydraulic cylinder three (590) is fixed with a pressing block (591), the pressing block (591) is fixed with a plurality of protrusions for extruding the buckle point (98) from the end of the mounting hole two (96) after hot melting.

6. An apparatus for automatically assembling a fuel pump back end cover assembly as defined in claim 5 wherein, The assembling table three (6) is fixed with a guide rail (62), the guide rail (62) is slidably provided with a moving seat (63), the assembling table three (6) is fixed with a motor four (60), the output end of the motor four (60) is fixed with a lead screw (61) for connecting and driving the sliding of the moving seat (63), the moving seat (63) is also provided with a carrier (8) for moving the inner core part (9); The assembling table three (6) is fixed with a sliding table seven (64), the sliding table seven (64) is slidably provided with a sliding table eight (65), the sliding table eight (65) is fixed with a cylinder twelve (66), the output end of the cylinder twelve (66) is fixed with a clamping part five (67) for moving the outer cover part (90) and the inner core part (9); The assembling table three (6) is fixed with a hydraulic cylinder four (68) on one side of the moving seat (63), the output end of the hydraulic cylinder four (68) is fixed with a top block for assembling the outer cover part (90) and the inner core part (9), the rack (1) is fixed with a sliding table nine (600), the sliding table nine (600) is slidably provided with a cylinder thirteen (601), the output end of the cylinder thirteen (601) is fixed with a clamping part six (602) for discharging the finished product.

7. A method of automatically assembling a fuel pump rear end cap assembly according to any one of claims 1-6, wherein, The method comprises the following steps: S1, first assembly The outer cover part (90) of the rear end cover assembly is conveyed to one side of the assembling table one (3) along the conveying line (4), the mounting hole one (99) on the outer cover part (90) is assembled with parts at the assembling table one (3), and the parts fixed in the mounting hole one (99) are hot melted to form an arc chamfer (97); S2, second assembly The outer cover part (90) is moved to the assembling table two (5), and the parts in the mounting hole two (96) are assembled at the assembling table two (5), and the parts in the mounting hole two (96) are fixed by hot melting and processing a buckle point (98); S3, third assembly The conveying line (4) transmits the outer cover part (90) to the assembling table three (6), the outer cover part (90) is assembled with the inner core part (9), then the outer cover part (90) is pressed and fixed, and then the outer cover part (90) is moved to the conveying line (4); S4, discharging The assembled rear end cover assembly is automatically discharged, and the rear end cover assembly is moved out of the assembling equipment.

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