An assembly line for fuel injection ring seals

Abstract

The present invention belongs to the technical field of fuel injection ring seal assembly, and particularly relates to a fuel injection ring seal assembly line, which solves the problems of low automation degree and low assembly and detection efficiency. This fuel injection ring seal assembly line includes a frame, on which are sequentially arranged: a pre-assembly detection mechanism for inputting the fuel injection rings to be processed and performing hole penetration detection and dimensional detection on them; a radial seal assembly mechanism for assembling the radial seals of the fuel injection rings and turning them over after the assembly is completed; an end face seal assembly mechanism for assembling the end face seals of the fuel injection rings that have been turned over; a piezoresistive detection mechanism for performing piezoresistive tests on the assembled fuel injection rings; a transfer mechanism for transferring the fuel injection rings between the various mechanisms; and each mechanism is respectively connected to a control computer, and the control computer analyzes the detection data and controls the coordinated actions of each mechanism. It realizes the function of automatically assembling the seals of the fuel injection rings, with high assembly efficiency and high finished product quality.

Description

Technical Field

[0001] The present invention belongs to the technical field of fuel injection ring seal ring assembly, and particularly relates to a fuel injection ring seal ring assembly line. Background Art

[0002] With the development of today's society, vigorously promoting new energy projects is an irresistible trend in the automotive industry. The motor fuel injection ring is an essential part of the motor system of electric vehicles. The fuel injection ring is assembled on the outer sides of both ends of the motor stator, and plays a role in sealing the coolant both radially and axially.

[0003] Currently, in the existing technology, there is no mature automated solution for the assembly of the seal ring of the fuel injection ring. Most assembly lines lack a series of automated processes such as perfect feeding, pre-assembly inspection, assembly, post-assembly inspection, and discharging. Some production lines still require a large amount of manual participation, resulting in low assembly efficiency and difficult to guarantee the detection accuracy. Summary of the Invention

[0004] The purpose of the present invention is to provide a fuel injection ring seal ring assembly line for the above problems existing in the prior art.

[0005] In order to achieve the purpose of innovation of the present invention, it can be realized through the following technical solutions:

[0006] A fuel injection ring seal ring assembly line, including a frame, on which are sequentially arranged:

[0007] A pre-assembly inspection mechanism, which is used to input the fuel injection ring to be processed with the radial seal groove facing up and the end face seal ring groove facing down, and perform hole penetration detection and dimension detection on it;

[0008] A radial seal ring assembly mechanism, which is used to assemble the radial seal ring for the qualified fuel injection ring detected by the pre-assembly inspection structure, and turn it over after the assembly is completed;

[0009] An end face seal ring assembly mechanism, which is used to assemble the end face seal ring for the fuel injection ring after the radial seal ring is assembled and has been turned over;

[0010] A pressure change detection mechanism, which is used to perform pressure change testing on the fuel injection ring after the radial seal ring and the end face seal ring are assembled;

[0011] A transfer mechanism, which is used to transfer the fuel injection ring between various mechanisms;

[0012] The detection mechanism, the radial seal ring assembly mechanism, the end face seal ring assembly mechanism, the pressure change detection mechanism, and the transfer mechanism are respectively connected to a control computer, and the control computer analyzes the detection data and controls the coordinated actions of each mechanism.

[0013] The fuel injection ring seal assembly line of the present invention is used for assembling the radial seal ring and the end face seal ring of the fuel injection ring and related detection work. The fuel injection ring is a ring-shaped structure, with lugs protruding axially on the upper end face, making it uneven in the circumferential direction. A stepped radial seal groove extending circumferentially is provided at the upper end of the fuel injection ring for socket-mounted installation of the radial seal ring. An annular end face seal groove recessed radially is provided on the bottom surface for installing the end face seal ring. A number of radial through holes are circumferentially distributed on the side. Among them, the pre-assembly detection mechanism is used for pre-assembly detection of the fuel injection ring seal assembly line to ensure the qualification of the fuel injection ring and ensure the smooth and effective subsequent assembly; the radial seal ring assembly mechanism is used for assembling the radial seal ring of the fuel injection ring. There is an annular installation step with the step surface facing up on the outside of the upper end of the fuel injection ring, and the radial seal ring needs to be sleeved on the radial seal groove above the installation step; the end face seal ring assembly mechanism is used for assembling the end face seal ring of the fuel injection ring after the radial seal ring is assembled and turned over, and the seal ring is clamped in the end face seal groove on the upper end face of the fuel injection ring; the pressure change detection mechanism is used for performing a pressure change test on the fuel injection ring after the radial seal ring and the end face seal ring are assembled to detect whether parameters such as its compressive capacity are qualified and up to standard, ensuring the qualification rate of the finished parts; the transfer mechanism is used to realize the transfer of the fuel injection ring between various mechanisms and between stations. Each mechanism is connected to the control computer, and the control computer coordinates and cooperates to achieve a high-automation-level assembly line operation with high assembly and detection efficiency and guaranteed assembly finished product quality.

[0014] In the above fuel injection ring seal assembly line, the pre-assembly detection mechanism includes: a rotation positioning module for rotating the fuel injection ring to a predetermined angle; a coding and marking module for marking processing information on the fuel injection ring; a hole penetration detection module for detecting the penetration of the radial through holes on the fuel injection ring; a dimension detection module for detecting the outer diameter of the fuel injection ring, the width of the radial seal groove, and the smoothness of the outer wall; a classification and discharging module for classifying and outputting NG parts according to specific NG reasons; the rotation positioning module, the coding and marking module, the hole penetration detection module, the dimension detection module, and the classification and discharging module are respectively connected to the control computer.

[0015] In the above fuel injection ring seal assembly line, the rotation positioning module includes a rotation positioning table arranged on the frame. A number of positioning detection components are arranged on the side of the rotation positioning table. The top surface of the rotation positioning table is provided with a rotatable first rotation table surface, and the first rotation table surface is connected to a first rotation drive component; the positioning detection components include a first laser generator and a first receiver arranged opposite to each other on both sides of the rotation positioning table, and the first laser generator and the first receiver are adapted to the height of the lugs on the upper end of the fuel injection ring.

[0016] In the above-mentioned fuel injection ring seal assembly line, the hole penetration detection module includes a hole penetration detection table arranged on the frame. A plurality of arc-shaped mounting blocks capable of radial movement are slidably arranged on the hole penetration detection table in the radial direction. An air outlet nozzle connected to a flow detector is arranged on the arc-shaped mounting block. The air inlet end of the air outlet nozzle is connected to a high-pressure gas generating assembly, and the air outlet end corresponds to the radial through holes of the fuel injection ring one by one. The sorting and discharging module includes a discharging transfer table. At least two groups of NG material output conveyor belts are vertically distributed on one side of the discharging transfer table. An NG part ejecting block is slidably connected to the discharging transfer table. A pushing assembly is arranged between the NG part ejecting block and the discharging transfer table. A discharging lifting drive assembly is arranged between the discharging transfer table and the frame. The coding and marking module includes a coding table. A laser coding assembly is arranged on the side of the coding table for marking information including processing time, team number, and production number on the fuel injection ring. An upstream of the rotation and positioning module is provided with a feeding module. The feeding module includes a feeding conveyor belt. A V-shaped baffle is arranged at the downstream end of the feeding conveyor belt. At least one group of baffle columns capable of entering or leaving above the feeding conveyor belt are distributed along the conveying direction on the side of the feeding conveyor belt for separating at least two fuel injection rings behind the baffle.

[0017] In the above-mentioned fuel injection ring seal assembly line, the radial seal assembly mechanism includes a fuel injection ring carrier table slidably connected to the frame. The fuel injection ring carrier table is driven to move by a carrier table translation drive assembly and can move between a receiving station for receiving the fuel injection rings after detection and an assembly station for assembling the radial seals onto the fuel injection rings. A seal transfer table and a seal stacking module for vertically stacking and storing the radial seals are further arranged on the frame. A seal transfer structure is arranged between the seal transfer table and the seal stacking module for removing the topmost radial seal from the seal stacking module and transferring it to the seal transfer table. A seal transfer structure is arranged between the seal transfer table and the assembly station for picking up the radial seal on the seal transfer table and docking it with the outside of the upper end of the fuel injection ring. A seal assembly structure is arranged at the assembly station for pushing down the radial seal on the seal transfer structure and sleeving the radial seal onto the radial seal groove of the fuel injection ring by pressing down.

[0018] In the above-mentioned fuel injection ring seal assembly line, the end face seal assembly mechanism includes a fuel injection ring carrier table slidably connected to the machine frame. The fuel injection ring carrier table is driven to move by a carrier table translation drive assembly and can move between a material receiving station for receiving the fuel injection ring after the radial seal ring is assembled and an assembly station for assembling the end face seal ring onto the fuel injection ring. A seal ring transfer table and a seal ring stacking module for vertically distributing and sleeving and storing the end face seal rings are further provided on the machine frame. A seal ring transfer structure is provided between the seal ring transfer table and the seal ring stacking module for removing the topmost end face seal ring of the seal ring stacking module and transferring it to the seal ring transfer table. A seal ring transfer and installation structure is provided between the seal ring transfer table and the fuel injection ring carrier table for picking up the end face seal ring on the seal ring transfer table and, after butting against the upper end of the fuel injection ring at the assembly station, pushing the end face seal ring downward into the end face seal groove at the upper end of the fuel injection ring.

[0019] In the above-mentioned fuel injection ring seal assembly line, the seal ring stacking module includes a plurality of vertical rods surrounding a cylindrical socket column. A clearance is formed between adjacent vertical rods. A tray is slidably arranged vertically between the vertical rods. A tray pushing assembly is provided between the tray and the machine frame. The seal ring stacking module includes at least two groups circumferentially distributed on a turntable. The turntable is rotatably arranged on the machine frame. A clearance through hole allowing the tray pushing assembly to pass through is provided on the turntable below the tray. The seal ring stacking module further includes an annular base. The annular base is detachably fixed to the turntable through a quick fixing structure. A plurality of first clearance grooves allowing the upper supporting pawls to extend into are circumferentially and evenly distributed on the tray.

[0020] In the above-mentioned fuel injection ring seal assembly line, the seal ring transfer structure includes a pawl expander. The pawl expander is arranged on the machine frame through an expander lifting structure and an expander transverse movement structure and can move horizontally and vertically. The pawl expander includes an expander mounting seat and upper supporting pawls circumferentially distributed on the bottom surface of the expander mounting seat and extending vertically. The upper supporting pawls are connected to an upper retracting and extending drive structure. The upper retracting and extending drive structure includes a first conical frustum arranged between the upper supporting pawls. The upper supporting pawls are slidably connected to the expander mounting seat through upper pawl seats. A first roller is provided on the upper pawl seat near the first conical frustum side. The first roller rolls on the conical surface of the first conical frustum. A first elastic component for making the upper pawl seat have a tendency to move towards the first conical frustum is provided between the upper pawl seat and the expander mounting seat. The first conical frustum is driven to lift by a first lifting drive component.

[0021] In the above-mentioned injection ring sealing ring assembly line, the sealing ring turntable includes an annular turntable base arranged on the frame, and a plurality of lower supporting material pawls are circumferentially distributed on the top surface of the turntable base, and the lower supporting material pawls are slidably connected to the turntable base through the lower pawl seats, and are driven radially to move by the lower retraction and extension drive structure, so as to stretch and remove the radial sealing ring on the sealing ring transfer structure; the lower retraction and extension drive structure includes a second conical cone arranged between the lower supporting material pawls, and the lower supporting material pawls are slidably connected to the turntable base through the lower pawl seats, and a second roller is provided on the side of the lower pawl seat near the second conical cone, and the second roller rolls on the conical surface of the second conical cone, and a second elastic component is provided between the lower pawl seat and the turntable base, which makes the lower pawl seat have a tendency to move toward the second conical cone, and the second conical cone is driven to rise and fall by the second lifting drive component.

[0022] In the above-mentioned injection ring sealing ring assembly line, the sealing ring transfer structure includes a docking tube with its lower end exposed and its opening facing downward, and a plurality of second vertically extending makeshift grooves are evenly distributed circumferentially at the lower end of the docking tube. The docking tube is slidably connected to the docking tube connecting hole of the annular assembly base, and can be lifted and lowered by the docking tube lifting drive component; the assembly lifting seat can move laterally and lift vertically.

[0023] In the above-mentioned oil injection ring sealing ring assembly line, the sealing ring assembly structure includes a peeling frame vertically slidably connected to the frame, the peeling frame is driven by the peeling frame lifting drive assembly to be able to move vertically up and down, the peeling frame is penetrated by a peeling through hole allowing the sealing ring transfer structure to pass vertically, at least two peeling plates are evenly distributed circumferentially on the outer side of the peeling through hole, the peeling plate is slidably connected to the peeling frame, and is driven by the peeling plate in and out drive assembly to make the front end extend to the top of the radial sealing ring to peel the radial sealing ring from the docking tube to the oil injection ring, and press it downward.

[0024] In the above-mentioned oil injection ring seal assembly line, the frame is also provided with a flipping structure for flipping the oil injection ring after radial seal assembly to facilitate the subsequent installation of the end face seal at the bottom. The flipping structure includes a flipping jaw that can be lifted vertically and rotated 180 degrees along the vertical plane. The flipping jaw includes two L-shaped claw bodies arranged opposite to each other. The L-shaped claw bodies are connected to the synchronous telescopic drive assembly and can be retracted to clamp the oil injection ring. A detection camera is also provided on the side of the seal turntable to detect whether the radial seal removed from the seal stacking module is installed upside down. A reverse material basket is provided on the side of the seal turntable. The seal transfer structure also includes a bulging hand longitudinal movement structure, which is used to transfer and remove the radial seal to the reverse material basket when it is detected that the radial seal is installed upside down.

[0025] In the above-mentioned fuel injection ring seal assembly line, the seal transfer structure includes a transfer base. An annular transfer cylinder is provided on the bottom surface of the transfer base. A push ring is sleeved outside the transfer cylinder. A push ring lifting structure is provided between the push ring and the transfer base. The transfer base is arranged on the frame through a transfer lifting structure and a transfer lateral movement structure, capable of vertical lifting and lateral movement. A positioning auxiliary structure is further provided on the radial outer side of the push ring; Axially extending and downwardly open relief grooves are circumferentially and uniformly distributed on the bottom surface of the transfer cylinder. The positioning auxiliary structure includes at least two arc-shaped positioning pieces that are circumferentially distributed on the transfer base and can slide radially. The arc-shaped positioning pieces are connected to a radial in-and-out drive assembly. An arc-shaped docking groove is provided at the lower part of the inner side of the arc-shaped positioning piece. The docking groove is attached to the outer side wall of the upper end of the fuel injection ring. A transfer positioning gap allowing the end face seal and the push ring to pass through is formed between the inner side wall of the upper end of the arc-shaped positioning piece and the outer side wall of the transfer cylinder; The radial in-and-out drive assembly is provided on the transfer base through an installation extension part. A height detection assembly is detachably arranged between adjacent installation extension parts for detecting the position of the end face seal; The height detection assembly includes a signal generator and a signal receiver whose connection wires pass through the relief grooves.

[0026] In the above-mentioned fuel injection ring seal assembly line, an assembly completion detection structure and an NG rejection structure for performing assembly quality control after the end face seal is assembled are further provided on the frame; The assembly completion detection structure includes a camera detection assembly arranged on the side of the detection station. The NG rejection structure includes an NG material output conveyor belt.

[0027] In the above-mentioned fuel injection ring seal assembly line, the pressure change detection mechanism includes a pressure change test bench and a vision detection bench arranged on the frame. The pressure change test bench is slidably connected to the frame and is connected to a pressure test bench translation drive assembly, and can be used to receive the material receiving position of the fuel injection ring with the seal assembled and move it below the pressure test assembly. A vision detection assembly is provided on the side of the vision detection bench. The pressure test assembly includes a pressure testing machine. The pressure testing machine includes a pressure plate arranged on the gantry through a hydraulic system. A pressure sensor is provided between the pressure plate and the hydraulic system; At least two groups corresponding to each other are provided between the pressure testing machine and the pressure change test bench; A press calibration assembly adapted to the height of the fuel injection ring is provided on the pressure change test bench.

[0028] In the above-mentioned fuel injection ring seal assembly line, the visual inspection table includes an inspection base arranged on the frame and a mounting disc detachably fixed on the inspection base. At least three groups of internally supported positioning blocks connected in a sliding manner are circumferentially distributed on the top surface of the mounting disc, and the internally supported positioning blocks are connected to a radial translation driving structure; the visual inspection assembly includes at least one inspection camera fixed on the frame and facing the visual inspection table; two opposite sides of the visual inspection table are also provided with two groups of positioning rollers, with at least two in each group. The positioning rollers are rotatably connected to one side of the roller seat close to the visual inspection table, and the roller seat is arranged on the roller base in a radially movable manner, and the roller base is slidably arranged on the frame in a vertically liftable manner; the side wall of the positioning roller is provided with an elastic rough surface, and its wheel axle is connected to a roller rotation driving assembly and can rotate to drive the fuel injection ring to rotate; two groups of discharge conveyors are also provided in the downstream direction of the visual inspection table, with at least one group for outputting NG parts and at least one group for outputting qualified finished products.

[0029] Compared with the prior art, the present invention mainly has the following advantages:

[0030] The fuel injection ring seal assembly line of the present invention is used for the assembly of radial seals and end face seals of the fuel injection ring and related inspection work. Among them, the pre-assembly inspection mechanism is used for the pre-assembly inspection of the fuel injection ring seal assembly line to ensure the qualification of the fuel injection ring and ensure the smooth and effective subsequent assembly; the radial seal assembly mechanism is used for the assembly of the radial seal of the fuel injection ring, and the radial seal needs to be sleeved on the radial seal groove above the installation step; the end face seal assembly mechanism is used for the assembly of the end face seal of the fuel injection ring after the radial seal is assembled and the fuel injection ring is turned over, and the seal is clamped in the end face seal groove on the upper end face of the turned-over fuel injection ring; the pressure change detection mechanism is used for the pressure change test of the fuel injection ring after the radial seal and the end face seal are assembled to detect whether parameters such as its compressive capacity are qualified and up to standard, and ensure the qualification rate of the finished products; the transfer mechanism is used to realize the transfer of the fuel injection ring between various mechanisms and between workstations. Each mechanism is connected to a control computer, and coordinated by the control computer, a high-automation level assembly line operation is realized, with high assembly and inspection efficiency and guaranteed quality of the assembled finished products. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the settings of the feeding module, the rotary positioning module and the coding and marking module of the pre-assembly inspection mechanism provided by the present invention;

[0032] Figure 2 It is a schematic diagram of the settings of the hole penetration detection module, the dimension detection module and the classification and discharge module of the pre-assembly inspection mechanism provided by the present invention;

[0033] Figure 3It is a schematic structural diagram of the feeding module provided by the present invention;

[0034] Figure 4 It is a schematic structural diagram of the rotary positioning module provided by the present invention;

[0035] Figure 5 It is a schematic structural diagram of the coding and marking module provided by the present invention;

[0036] Figure 6 It is a schematic structural diagram of the hole penetration detection module provided by the present invention;

[0037] Figure 7 It is a schematic structural diagram of the dimension detection module provided by the present invention;

[0038] Figure 8 It is a schematic structural diagram of the sorting and discharging module provided by the present invention;

[0039] Figure 9 It is a schematic structural diagram of the transfer component between the feeding module and the coding and marking module provided by the present invention;

[0040] Figure 10 It is a schematic structural diagram of the transfer component between the hole penetration detection module and the sorting and discharging module provided by the present invention;

[0041] Figure 11 It is a schematic overall structural diagram of the radial sealing ring assembly mechanism provided by the present invention;

[0042] Figure 12 It is a schematic structural diagram of the sealing ring stacking module provided by the present invention;

[0043] Figure 13 It is a schematic diagram of the cooperation of the turntable, the annular base and the tray provided by the present invention;

[0044] Figure 14 It is a schematic structural diagram of the sealing ring transfer structure provided by the present invention;

[0045] Figure 15 It is a schematic structural diagram of the ratchet pawl expanding hand provided by the present invention;

[0046] Figure 16 It is a schematic structural diagram of the sealing ring turntable provided by the present invention;

[0047] Figure 17 It is a schematic structural diagram of the sealing ring transfer structure provided by the present invention;

[0048] Figure 18 It is a schematic diagram of the sealing ring assembly structure and the flipping structure provided by the present invention;

[0049] Figure 19 is Figure 18Enlarged view of the details at F1 in the [Chinese context];

[0050] Figure 20 is the overall structural schematic diagram of the end face seal ring assembly mechanism provided by the present invention;

[0051] Figure 21 is the structural schematic diagram of the seal ring transfer and installation structure provided by the present invention;

[0052] Figure 22 is the structural schematic diagram of the assembly completion detection structure and the NG rejection structure provided by the present invention;

[0053] Figure 23 is the overall structural schematic diagram of the piezoresistive detection mechanism provided by the present invention;

[0054] Figure 24 is the structural schematic diagram of the vision detection table and the vision detection component provided by the present invention;

[0055] Figure 25 is the schematic diagram of the second transfer component provided by the present invention;

[0056] Figure 26 is the schematic diagram of the fuel injection ring, the radial seal ring, and the end face seal ring provided by the present invention.

[0057] In the figure, the pre-assembly detection mechanism A1, the rotary positioning module A2, the coding and marking module A3, the hole penetration detection module A4, the dimension detection module A5, the classification and discharging module A6, the first transfer component A7, the rotary positioning table A8, the positioning detection component A9, the first rotary table surface A10, the first rotary drive component A11, the spare detection camera A12, the hole penetration detection table A13, the arc-shaped mounting block A14, the mounting block telescopic drive component A15, the air outlet nozzle A16, the rotary detection table A17, the detection table base A18, the second rotary table surface A19, the second rotary drive component A20, the base lifting drive component A21, the dimension detection component A22, the discharging transfer table A23, the NG material output conveyor belt A24, the NG part ejecting block A25, the pushing component A26, the lifting structure A27, the coding table A28, the laser coding component A29, the inner positioning block A30, the gripper component A31, the clamping gripper A32, the inner expansion type support A33, the sliding drive component A34, the first slide rail A35, the first slide table A36, the second slide rail A37, the second slide table A38, the third slide rail A39, the third slide table A40, the support rod A41, the L-shaped clamp A42, the elastic cushion layer A43, the feeding module A44, the material blocking plate A45, the material blocking column A46, the material blocking telescopic component A47, the idle detection component A48, the gripper lifting structure A49, the feeding conveyor belt A50,

[0058] Radial seal ring assembly mechanism B1, No. 1 fuel injection ring carrier B2, seal ring transfer structure B3, seal ring assembly structure B4, detection camera B5, misassembly basket B6, docking cylinder B12, second relief groove B13, docking cylinder connection hole B14, assembly lifting seat B15, separating frame B16, separating through hole B17, separating piece B18, separating frame lifting drive assembly B19, separating piece in-and-out drive assembly B20, flipping structure B21, carrier slide rail B22, outer positioning convex B23, flipping jaw B24, jaw rotating seat B25, synchronous telescopic drive assembly B26, flipping drive assembly B27, No. 1 carrier translation drive assembly B28, docking cylinder lifting drive assembly B29, assembly base B30, jaw lifting seat B31

[0059] End face seal ring assembly mechanism C1, No. 2 fuel injection ring carrier C2, transfer base C3, transfer cylinder C4, pushing ring C5, pushing ring lifting structure C6, transfer lifting structure C7, transfer transverse movement structure C8, positioning auxiliary structure C9, arc-shaped positioning piece C10, radial in-and-out drive assembly C11, docking groove C12, transfer positioning gap C13, relief groove C14, installation extension C15, height detection component C16, detector installation piece C17, annular positioning step C18, post-assembly detection structure C19, NG rejection structure C20, camera detection component C21, NG material output conveyor belt C22, internal expansion type gripper C23, No. 2 carrier translation drive assembly C24, seal ring transfer structure C25

[0060] Pressure change detection mechanism D1, pressure change test bench D2, vision detection bench D3, pressure measurement bench translation drive assembly D4, second transfer assembly D5, pressure testing machine D6, gantry D7, pressure plate D8, press calibration component D9, detection base D10, installation disc D11, internal support type positioning block D12, radial translation drive structure D13, pneumatic cylinder body D14, connecting slide bar D15, gas charging and discharging component D16, arc-shaped main body D17, supporting table D18, pipeline connection through hole D19, detection camera D20, positioning roller D21, roller translation driver D22, roller lifting driver D23, lighting component D24, jaw seat D25, strip-shaped jaw body D26, double-headed synchronous cylinder D27, L-shaped jaw D28, pneumatic drive structure D29, jaw lifting drive assembly D30, jaw translation drive assembly D31, jaw pneumatic cylinder body D32, discharge conveyor belt D33, vision detection component D34, pressure test component D35, hydraulic system D36, roller seat D37, roller base D38

[0061] Sealing ring stacking module E1, sealing ring transfer structure E2, sealing ring transfer table E3, sleeve column E4, vertical rod E5, clearance gap E6, tray E7, turntable E8, clearance through hole E9, first clearance groove E10, tray push assembly E11, push extension frame E12, positioning column E13, positioning hole E14, quick fixing structure E15, L-shaped lock E16, handle E17, turntable rotation drive assembly E18, ratchet expander E19, expander mounting seat E20, upper supporting material pawl E21, first conical truncated table E22, first roller E23, first elastic component E24, first lifting drive component E25, first cross bar E26, first abutment block E27, annular base E28, expanding hand lifting structure E29, expanding hand transverse movement structure E30, transfer base E31, lower supporting material pawl E32, second conical truncated table E33, second roller E34, second elastic component E35, second lifting drive component E36,

[0062] Oil injection ring 100 , lug 101 , radial through hole 102 , radial sealing groove 103 , end face sealing groove 104 , radial sealing ring 200 , end face sealing ring 300 , frame 400 . DETAILED DESCRIPTION

[0063] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0064] First, a brief description of the application example is given. The fuel injection ring sealing ring assembly line related to the present invention is a project related to Tesla, and also involves a product on the motor system, namely the motor fuel injection ring. This project is equipped with two car models. The product is assembled on the outside of both ends of the motor stator, and acts as a seal coolant in the radial and axial directions respectively. As Tesla's popular models on sale, these two models have huge market size and business volume. The annual sales volume of this product is 1 million units, and the annual output value reaches RMB 32 million; at the same time, it has driven BYD, Geely, Qingshan, Weirui, Wuxi Xingqu, Tianjin Weipai and other customers to designate fuel injection ring projects.

[0065] Specific implementation examples Figures 1 - 26As shown in the figure, this fuel injection ring seal assembly line includes a frame 400. On the frame 400, the following are sequentially arranged: a pre-assembly detection mechanism A1, which is used to input the fuel injection ring 100 to be processed with the radial seal groove 103 facing upward and the end face seal ring groove 104 facing downward, and perform hole penetration detection and dimensional detection on it; a radial seal ring assembly mechanism B1, which is used to assemble the radial seal ring 200 on the qualified fuel injection ring 100 detected by the pre-assembly detection structure, and turn it over after the assembly is completed; an end face seal ring assembly mechanism C1, which is used to assemble the end face seal ring 300 on the fuel injection ring that has completed the radial seal ring assembly and has been turned over; a piezoresistive detection mechanism D1, which is used to perform piezoresistive testing on the fuel injection ring 100 with the radial seal ring 200 and the end face seal ring 300 assembled; a transfer mechanism, which is used to transfer the fuel injection ring 100 between various mechanisms; the detection mechanism A1, the radial seal ring assembly mechanism B1, the end face seal ring assembly mechanism C1, the piezoresistive detection mechanism D1, and the transfer mechanism are respectively connected to a control computer, and the control computer analyzes the detection data and controls the coordinated actions of each mechanism. Of course, in order to ensure smooth movement of the fuel injection ring, corresponding connecting conveyor belt assemblies are also provided between various mechanisms of this assembly line, which is common knowledge and will not be further elaborated.

[0066] As Figures 1 - 10 , as shown in Fig. 26, the pre-assembly detection mechanism A1 includes a frame 400. On the frame 400, there are provided: a rotary positioning module A2, which is used to rotate the fuel injection ring 100 to a predetermined angle; a coding and marking module A3, which is used to mark processing information on the fuel injection ring 100; a hole penetration detection module A4, which is used to detect the penetration of the radial through hole 102 on the fuel injection ring 100; a dimensional detection module A5, which is used to detect the outer diameter of the fuel injection ring 100, the width of the radial seal groove 103, and the smoothness of the outer wall; a classification and discharging module A6, which is used to classify and output the NG materials according to the specific NG reasons; a first transfer component A7, which is used to transfer the fuel injection ring 100 between various modules; a control computer, which is respectively connected to the rotary positioning module A2, the coding and marking module A3, the hole penetration detection module A4, the dimensional detection module A5, the classification and discharging module A6, and the first transfer component A7, and is used to control the coordinated actions of each module.

[0067] Specifically, this pre-assembly inspection mechanism is used for pre-assembly inspection of the oil injection ring 100 seal ring assembly line to ensure the qualification of the oil injection ring 100, ensure the smooth and effective subsequent assembly. The oil injection ring 100 is of a ring structure, with lugs 101 axially protruding on the upper end surface, making it uneven in the circumferential direction. A stepped radial seal groove 103 extending circumferentially is provided at the upper end of the oil injection ring 100 for socket-mounted installation of the radial seal ring. An annular end face seal groove 104 recessed radially is provided on the bottom surface for installing the end face seal ring. A number of radial through holes 102 are circumferentially distributed on the side. The rotation positioning module A2 in this mechanism is used to rotate the oil injection ring 100 to a predetermined angle, and can rotate the oil injection ring 100 to a predetermined state where the lug 101 is at a corresponding angle, facilitating subsequent steps to process to the corresponding position; the coding and marking module A3 is used to perform coding and marking on the oil injection ring 100, and mark information such as the processing team and processing time on the oil injection ring 100, facilitating subsequent responsibility tracking and problem tracing; the hole penetration detection module A4 is used to check whether the radial through holes 102 on the side of the oil injection ring 100 are qualified, such as detecting whether they penetrate and whether the position is set accurately; the dimension detection module A5 is used to detect the outer diameter of the oil injection ring 100, and particularly is also used to detect the width and smoothness of the radial seal groove 103 at the upper end to ensure the smooth assembly of the seal ring and achieve the predetermined sealing effect; after the detection, the classification and discharging module A6 outputs the NG materials after rejection, and this rejection is classified and output according to the NG reasons, which is beneficial for quality inspection personnel to discover the distribution of NG problems, helps to timely adjust or check the relevant processing equipment, and also helps to quickly adjust the salvageable NG materials to control costs; the oil injection ring 100 is sequentially transferred between each module by the transfer component A7, realizing a pipeline-type processing flow with a high degree of automation; in addition, the control computer serves as the calculation and control center, coordinating and controlling the cooperation actions between each module and the transfer component A7 to ensure the orderly and efficient realization of positioning, detection, and NG material classification and output.

[0068] As Figure 4 shown, the rotation positioning module A2 includes a rotation positioning table A8 provided on the frame 400. A positioning station is formed on the top surface of the rotation positioning table A8, and a number of positioning detection components A9 are provided on the side. The first rotation table A10 is rotatably connected to the top surface of the rotation positioning table A8, and the first rotation table A10 is connected to the first rotation drive component A11; the positioning detection component A9 includes a first laser generator and a first receiver that are located on both sides of the positioning station and are oppositely arranged, and the first laser generator and the first receiver are adapted to the height of the lug 101 at the upper end of the oil injection ring 100. A spare detection camera A12 is also provided on the side of the rotation positioning table A8. The spare detection camera A12 is fixed on the frame 400 and is aligned with the positioning station, and is used to further assist in confirming whether the positioning is in place through images. The spare detection camera A12 is connected to the control computer.

[0069] Specifically, the rotary positioning table A8 is used to rotate the fuel injection ring 100 to a predetermined angle. The fuel injection ring 100 is placed on the first rotary table surface A10 above it. The first rotary drive assembly A11 drives the first rotary table surface A10 to rotate with the fuel injection ring 100. The first rotary drive assembly A11 can specifically be the first drive motor provided on the frame 400. The positioning detection assembly A9 emits laser light from the first laser generator, and the first receiver receives the emitted laser signal. The heights of both are adapted to the height of the lug 101 at the upper end of the fuel injection ring 100. When the first receiver does not receive the signal, it means that the signal is blocked by the lug 101, that is, it indicates the position of the lug 101, realizing the detection of the rotation angle of the fuel injection ring 100. The detection camera performs visual detection through image capture and analysis, which can be used as an auxiliary detection method to improve the accuracy of positioning.

[0070] As Figure 6 shown, the hole penetration detection module A4 includes a hole penetration detection table A13 provided on the frame 400. A penetration detection position is formed on the top surface of the hole penetration detection table A13. A plurality of groups of arc-shaped mounting blocks A14 are slidably arranged radially on the hole penetration detection table A13. The arc-shaped mounting blocks A14 are connected to the mounting block telescopic drive assembly A15, and an air outlet nozzle A16 is provided thereon. The air inlet end of the air outlet nozzle A16 is connected to the high-pressure gas generating assembly, and the air outlet end corresponds to the radial through holes 102 of the fuel injection ring 100 one by one. The air outlet nozzle A16 is connected with a flow detector, and the flow rate detector is connected to the control computer.

[0071] Specifically, the penetration detection position on the hole penetration detection table A13 is used to place the fuel injection ring 100 to be subjected to hole penetration detection. The air outlet nozzle A16 is arranged on the hole penetration detection table A13 through the arc-shaped mounting block A14. The air outlet nozzle A16 is located inside the fuel injection ring 100 and sprays gas radially outward. The position of the air outlet end of the air outlet nozzle A16 is adapted to the position of the radial through holes 102 on the fuel injection ring 100. The mounting block telescopic drive assembly A15 is used to drive the movement of the arc-shaped mounting block A14 to make the air outlet end of the air outlet nozzle A16 close to the inside of the fuel injection ring 100. The flow detector is used to detect the gas flow output by the air outlet nozzle A16 per unit time. The flow data is converted into a diameter through the flow formula to realize the non-destructive detection of the radial through holes 102 and eliminate the phenomenon of small hole flash.

[0072] In this embodiment, the mounting block telescopic drive assembly A15 includes a pneumatic cylinder body provided at the center of the hole penetration detection table A13. The arc-shaped mounting block A14 is connected to the pneumatic cylinder body through a radial connecting rod. A power chamber is formed between the inner end of the connecting rod and the pneumatic cylinder body. The power chamber is connected to the gas pumping and discharging assembly for driving the telescopic movement of the connecting rod, thereby realizing the radial translation control of the arc-shaped mounting block A14.

[0073] AsFigure 7 As shown, the size detection module A5 includes a rotating detection table A17, a size detection position is formed on the top surface of the rotating detection table A17, and two groups of size detection components A22 are arranged on the side; the rotating detection table A17 includes a detection table base A18 slidably connected to the frame 400 and can be vertically lifted and lowered, and a second rotating table surface A19 rotatably connected to the detection table base A18, the second rotating table surface A19 is driven to rotate by the second rotating drive component A20, and the detection table base A18 is driven to lift and lower by the base lifting drive component A21; the size detection component A22 includes at least one group of camera No. 1 for sending signals and camera No. 2 for receiving signals, the camera No. 1 and the camera No. 2 are arranged opposite to each other and aimed at the side of the injection ring 100, and are used to detect the outer diameter of the injection ring 100, the groove width of the radial sealing groove 103, and whether the outer wall is smooth.

[0074] Specifically, the size detection position on the rotating detection table A17 is used to place the oil injection ring 100 whose size is to be detected. The detection table base A18 of the rotating detection table A17 can be raised and lowered vertically, and the second rotating table surface A19 on the base can rotate circumferentially, so that the size detection component A22 can perform all-round detection of different height positions and 360-degree circumferential positions of the oil injection ring 100. The detection is comprehensive. The size detection component A22 is specifically implemented by camera No. 1 and camera No. 2. Camera No. 1 and camera No. 2 are arranged relatively to each other, and corresponding items are detected on the oil injection ring 100 between them.

[0075] In this embodiment, the second rotating drive component A20 includes a second driving motor arranged on the detection table base A18 and transmission-connected to the second rotating table surface A19, and the base lifting drive component A21 includes a detection table lifting cylinder vertically arranged on the frame 400 and the output end of which is connected to the detection table base A18.

[0076] like Figure 8 As shown, the classification discharging module A6 includes a discharging transfer table A23, on which a transfer position is formed, and at least two groups of NG material output conveyor belts A24 are vertically distributed on one side of the transfer position, and an NG piece top block A25 is slidably connected to the discharging transfer table A23, and a pushing assembly A26 is provided between the NG piece top block A25 and the discharging transfer table A23, and a discharging lifting drive assembly A27 is provided between the discharging transfer table A23 and the frame 400.

[0077] Specifically, the transfer position on the discharging transfer table A23 is used to temporarily store the sprayed rings 100 that have completed coding and inspection, facilitating the handover by different first transfer components A7. Multiple groups of NG material output conveyor belts A24 are arranged on the side of the discharging transfer table A23. The discharging lifting drive component A27 can control the lifting action of the discharging transfer table A23, so that the transfer position is docked at the same height as the upstream end of different NG material output conveyor belts A24. According to different NG reasons, after the transfer position corresponds to the corresponding NG material output conveyor belt A24, the NG part ejector block A25 can push it onto the conveyor belt to achieve the rejection of NG parts. For qualified products, they are transferred to the subsequent work positions by the first transfer component A7.

[0078] In this embodiment, the ejecting component A26 includes an NG part ejecting cylinder arranged on the discharging transfer table A23. The NG part ejecting cylinder is located on the opposite side of the NG material output conveyor belt A24. The output end of the NG part ejecting cylinder is connected to the NG part ejector block A25 for pushing the NG material onto the NG material output conveyor belt A24. The discharging lifting drive component A27 includes a discharging table lifting cylinder. The output end of the discharging table lifting cylinder is connected to the discharging transfer table A23, and is used to lift the discharging transfer table A23 to be flush with one of the NG material output conveyor belts A24.

[0079] As Figure 5 shown, the coding and marking module A3 includes a coding table A28. A coding and marking position is formed on the top surface of the coding table A28, and a laser coding component A29 is arranged on the side. The laser coding component A29 is aligned with the coding and marking position and is used to mark information including processing time, team number, etc. on the sprayed ring 100. This information is integrated in a two-dimensional code to increase the information capacity. An annular inner positioning block A30 is arranged on the coding and marking position. The inner positioning block A30 is fixed to the top surface of the coding table A28 by bolts. The outer diameter of the inner positioning block A30 is adapted to the inner diameter of the sprayed ring 100, and positioning grooves are arranged on its outer peripheral edge. The number and distribution of the positioning grooves are adapted to the axial reinforcing ribs on the inner circle of the sprayed ring 100. An easy-entry guiding surface is arranged at the upper end of the positioning groove.

[0080] Specifically, the coding and marking position on the coding table A28 is used to place the sprayed rings 100 that have been positioned and are waiting for coding. The annular inner positioning block A30 is used to position the placement position of the sprayed ring 100 to ensure that the coding is at a predetermined position. The laser coding component A29 is specifically used to identify the information by laser engraving on the side wall surface of the sprayed ring 100, without affecting the structure such as the sealing ring groove. The inner positioning block A30 is fixed by bolts and has flexible detachability. The corresponding inner positioning block A30 can be replaced according to the specific model of the sprayed ring 100. A radially recessed positioning groove is arranged on the outside of the inner positioning block A30, which is used for the axial reinforcing ribs on the inner circle of the sprayed ring 100 to be inserted for positioning. The easy-entry guiding surface at the upper end is in the form of an inclined surface or an arc surface, which helps the axial reinforcing ribs to be inserted.

[0081] As shown Figure 1 , 2 , as shown in Figures 9 and 10, the first transfer assembly A7 includes a horizontal slide rail disposed on the frame 400, and a mounting slide table slidably connected to the horizontal slide rail. A sliding drive assembly A34 is provided between the mounting slide table and the horizontal slide rail. A gripper assembly A31 is provided on the mounting slide table through a gripper lifting structure A49. The gripper assembly A31 includes an internally expanding gripper A33 or a clamping gripper A32. The horizontal slide rail includes a first slide rail A35 disposed between the feeding module A44 and the coding and marking module A3. The mounting slide table includes a first slide table A36 slidably connected to the first slide rail A35. Two sets of internally expanding grippers A33 are provided on the first slide table A36. The horizontal slide rail further includes a second slide rail A37 disposed between the coding and marking module A3 and the hole penetration detection module A4. The mounting slide table includes a second slide table A38 slidably connected to the second slide rail A37. A set of clamping grippers A32 is provided on the second slide table A38. The horizontal slide rail further includes a third slide rail A39 disposed between the hole penetration detection module A4 and the sorting and discharging module A6. The mounting slide table includes a third slide table A40 slidably connected to the third slide rail A39. Two sets of internally expanding grippers A33 are provided on the third slide table A40.

[0082] Specifically, the first transfer assembly A7 specifically grabs the fuel injection ring 100 by the gripper assembly A31. The gripper assembly A31 can be an internally expanding gripper A33 or a clamping gripper A32, and can be selected according to the relevant structures at the specific workstations where the object is to be transferred and placed to ensure the smooth realization of the transfer. The gripper assembly A31 is vertically liftable on the mounting slide table through the gripper lifting structure A49 for descending to grab or release the fuel injection ring 100, and ascending to lift the fuel injection ring 100 to ensure smooth lateral movement. The mounting slide table is horizontally slidably disposed on the frame 400 through the horizontal slide rail. The sliding drive assembly A34 is used to provide the sliding driving force for the mounting slide table. The sliding drive assembly A34 can specifically include a linear motor module disposed parallel to the horizontal slide rail, and the mounting slide table is connected to the linear motor module. The gripper assembly A31 for transfer between the feeding module A44 and the coding and marking module A3 selects the internally expanding gripper A33 to avoid interference with the relevant structures that limit the fuel injection ring 100 from the outside at the feeding position of the feeding module A44, for example. The gripper assembly A31 between the coding and marking module A3 and the hole penetration detection module A4 selects the clamping gripper A32 to avoid interference with the air outlet nozzle A16 inside the fuel injection ring 100 at the penetration detection position. The gripper assembly A31 between the hole penetration detection module A4 and the sorting and discharging module A6 selects the internally expanding gripper A33 to avoid interference with the structures that limit the fuel injection ring 100 from the outside at the transfer position. In addition, the transfer between these modules is realized through multiple sets of slide rail sliders, which has independence and also avoids the need for a long drive stroke of the corresponding driver for a long slide rail, and the setting is more flexible.

[0083] As shown Figure 9 , 10 in the figure, the internal expansion type support A33 includes a support mounting table fixed on the bottom surface of the mounting slide, and four groups of support rods A41 that are circumferentially and evenly distributed on the support mounting table and can be radially extended and retracted. A support rod telescopic drive assembly is provided between the support mounting table and the support rod A41, and an elastic cushion layer A43 is provided at the outer end of the support rod A41; the clamping type gripper A32 includes a jaw mounting table fixed on the bottom surface of the mounting slide, and four groups of L-shaped jaws A42 that are circumferentially and evenly distributed on the jaw mounting table and can slide radially. A jaw telescopic drive assembly is provided between the jaw mounting table and the L-shaped jaw A42, and an elastic cushion layer A43 is provided on the inner side of the vertical acting section of the L-shaped jaw A42.

[0084] Specifically, the main body of the internal expansion type support A33 is the support mounting table. A plurality of groups of support rods A41 are radially arranged on the support mounting table. The support rod telescopic drive assembly is used for the telescopic movement of the support rod A41. When extended, the elastic cushion layer A43 at the outer end of the support rod A41 is specifically attached to the inner side wall of the fuel injection ring 100 to achieve the internal expansion type opening and fixing. The elastic cushion layer A43 can be made of materials such as rubber to avoid damaging the fuel injection ring 100. The clamping type gripper A32 has a similar structure. The difference is that the radially telescopic part is the L-shaped jaw A42. The L-shaped jaw A42 has a vertical acting section that extends vertically downward and is used to press against the fuel injection ring 100 from the outside to achieve the clamping type grasping and fixing. An elastic cushion layer A43 is provided on its inner side, which also has a protective effect.

[0085] In this embodiment, both the support rod telescopic drive assembly and the jaw telescopic drive assembly include a pneumatic structure. The pneumatic structure includes a power chamber provided between the support mounting table and the inner end of the support rod A41, or between the jaw mounting table and the inner end of the L-shaped jaw A42. The power chamber is connected to a high-pressure gas generating assembly through a guide pipe.

[0086] As an optimization of this embodiment, annular outer positioning protrusions adapted to the outer diameter of the fuel injection ring 100 are provided on the top surfaces of the rotary positioning table A8, the hole penetration detection table A13, the dimension detection table, and the coding table A28. The fuel injection ring 100 is positioned within the outer positioning protrusions to ensure the accurate implementation of related detection and other operations.

[0087] As shown Figure 1 , 3As shown in the figure, a feeding module A44 is provided upstream of the rotary positioning module A2. The feeding module A44 includes a feeding conveyor belt A50. A V-shaped baffle A45 is provided at the downstream end of the feeding conveyor belt A50. A feeding waiting position for taking is formed inside the baffle A45. At least one group of baffle columns A46 are distributed along the conveying direction on the side of the feeding conveyor belt A50. The baffle columns A46 are arranged on the rack 400 through a baffle telescopic assembly A47, and can extend above the feeding conveyor belt A50 to at least separate the feeding waiting position and the oil injection ring 100 in the upstream direction. An idle detection component A48 for detecting whether it is idle is provided on the side of the feeding waiting position. The baffle telescopic assembly A47 includes a baffle telescopic cylinder horizontally arranged on the rack 400 and perpendicular to the feeding conveyor belt A50. A downwardly extending baffle column A46 is rotatably connected to the output end of the baffle telescopic cylinder. An elastic layer is coated on the outer wall of the baffle column A46 to avoid damaging the oil injection ring 100. The idle detection component A48 includes a second laser generator and a second receiver arranged on both sides of the feeding waiting position. There are two groups of baffle columns A46, which are respectively located between three adjacent oil injection rings 100 on the upstream side of the baffle A45.

[0088] Specifically, the feeding module A44 is located at the very front end of this assembly line and is used to input the oil injection rings 100 to be processed. It is mainly conveyed and input by the feeding conveyor belt A50. The oil injection rings 100 are conveyed towards the downstream end, and the V-shaped baffle at the downstream end blocks the oil injection rings 100 at the feeding waiting position here for the first transfer assembly A7 to grab. Since the oil injection rings 100 are arranged along the conveying direction of the conveyor belt, in order to at least separate the oil injection rings 100 at the feeding waiting position, baffle columns A46 are provided on the rack 400. The baffle columns A46 can extend after the foremost oil injection ring 100 passes to block the subsequent oil injection rings 100 from approaching, ensuring that the oil injection rings 100 at the feeding waiting position are smoothly taken away. The idle detection component A48 is used to detect whether the feeding waiting position is idle, that is, whether the oil injection rings 100 in it have been taken away. When it is idle, the baffle columns A46 can be controlled to retract to release the subsequent oil injection rings 100 into the feeding waiting position, with a high degree of automation. Moreover, when it is detected that there are oil injection rings 100 at the feeding waiting position, the feeding conveyor belt A50 can be set to stop rotating in a timely manner, reducing the unnecessary friction between the conveyor belt surface and the bottom surface of the oil injection rings 100 and reducing wear. The second laser generator and the second receiver are arranged opposite to each other, and the connection line passes through the oil injection rings 100 at the feeding waiting position. Whether the second receiver receives the laser signal is used to judge whether there are oil injection rings 100 in the feeding waiting position, and the detection effect is accurate. Setting two groups of baffle columns A46 can separate the foremost three oil injection rings 100, ensuring that the first oil injection ring 100 is smoothly taken away and also ensuring that the second oil injection ring 100 smoothly enters the feeding waiting position.

[0089] Specific working principle of the pre-assembly detection mechanism: The fuel injection ring 100 to be processed is placed on the downstream side of the feeding conveyor belt A50. The fuel injection ring 100 is conveyed forward by the feeding conveyor belt A50. The first fuel injection ring 100 at the frontmost enters the feeding waiting-to-be-taken position. The rear baffle post A46 extends to separate the second fuel injection ring 100. Then, the first transfer assembly A7 grabs and transfers the first fuel injection ring 100 to the positioning station on the rotary positioning table A8. The rotary positioning table A8 rotates, and the angle information is detected by the first laser generator and the first receiver. It stops rotating after reaching the position. Then, the first transfer assembly A7 transfers the fuel injection ring 100 to the coding marking position on the coding table A28, and the laser coding assembly A29 marks the traceability two-dimensional code at the corresponding position on the outer side wall of the fuel injection ring 100. Then, the first transfer assembly A7 transfers the fuel injection ring 100 to the penetration detection position on the hole penetration detection table A13. The air outlet nozzle A16 outputs gas, and the flow rate per unit time is detected by the flow detector, and this data is transmitted to the control computer, and the control computer converts it into the diameter of the hole. Then, the first transfer assembly A7 transfers the fuel injection ring 100 to the dimension detection position on the rotary detection table A17. The second rotary table surface A19 rotates, and at the same time, the detection table base A18 moves up and down at regular intervals. Two groups of first cameras and second cameras detect the fuel injection ring 100, and the detection data is sent to the control computer. Then, the first transfer assembly A7 transfers the fuel injection ring 100 to the transfer position on the discharge transfer table A23. According to the relevant data sent, the control computer calculates and analyzes whether the fuel injection ring 100 is qualified. If the result is judged as an NG part, the discharge transfer table A23 rises to the corresponding height to be flush with the corresponding classification output conveyor belt, and the NG part ejector A25 pushes the fuel injection ring 100 onto the upstream end of this conveyor belt. If the result is judged as a qualified part, it waits to be grabbed by the transfer mechanism of the subsequent assembly mechanism.

[0090] Such as Figures 11 - 19As shown in the figure, the radial seal ring assembly mechanism B1 includes a frame 400. A first oil injection ring carrier B2 is slidably connected to the frame 400. The first oil injection ring carrier B2 is driven by a first carrier translation drive assembly B28 to move, and can move between a receiving station for receiving the inspected oil injection ring 100 and an assembly station for assembling the radial seal ring 200 onto the oil injection ring 100. A seal ring transfer table E3 and a seal ring stacking module E1 for vertically sleeving and storing the radial seal rings 200 are also provided on the frame 400. A seal ring transfer structure E2 is provided between the seal ring transfer table E3 and the seal ring stacking module E1, which is used to remove the topmost radial seal ring 200 from the seal ring stacking module E1 and transfer it to the seal ring transfer table E3. A seal ring transfer structure B3 is provided between the seal ring transfer table E3 and the assembly station, which is used to pick up the radial seal ring 200 on the seal ring transfer table E3 and dock the radial seal ring 200 against the outer side of the upper end of the oil injection ring 100. A seal ring assembly structure B4 is provided at the assembly station, which is used to push down the radial seal ring 200 on the seal ring transfer structure B3 and sleave the radial seal ring 200 onto the radial seal groove 103 of the oil injection ring 100 by pressing down.

[0091] Specifically, this radial seal ring 200 assembly mechanism is used to assemble the radial seal ring 200 on the oil injection ring 100. An annular installation step with a stepped surface facing upward is provided on the outer side of the upper end of the oil injection ring 100. The radial seal ring 200 needs to be sleeved on the radial seal groove above the installation step. In this mechanism, the oil injection ring carrier B2 is used to receive the qualified parts after pre-assembly inspection at the receiving station and move them to the assembly station for assembling the radial seal ring 200. The radial seal rings 200 to be assembled are stored on the seal ring stacking module E1 in a sleeved manner and are vertically arranged and distributed, with the top and bottom of adjacent seal rings in contact. The seal ring transfer structure E2 is used to remove the topmost radial seal ring 200 from the seal ring stacking module E1 and transfer it to the seal ring transfer table E3. The seal ring transfer table E3 is used for the transition between the seal ring stacking module E1 and the seal ring transfer structure B3, and transfers the removed radial seal ring 200 to the seal ring transfer structure B3. The seal ring transfer structure B3 then docks the radial seal ring 200 against the corresponding position at the upper end of the oil injection ring 100. The seal ring assembly structure B4 is used to push the seal ring to the corresponding installation position and also apply a certain pressing action to the radial seal ring 200, so that the bottom end of the seal ring is in contact with the installation step to ensure proper installation. This mechanism has a high degree of automation and can realize a series of actions such as receiving the oil injection ring 100 to be assembled, picking up the seal ring, and assembling the seal ring, with high assembly efficiency.

[0092] Such as Figure 12 、 13As shown, the seal ring stacking module E1 includes several vertical rods E5 that enclose a cylindrical socket column E4. A clearance E6 is formed between adjacent vertical rods E5 to allow the upper supporting pawl E21 of the seal ring transfer structure E2 to pass through. A tray E7 with an outer diameter larger than that of the cylindrical socket column E4 is slidably arranged vertically between the vertical rods E5. The seal rings are axially distributed and sleeved on the cylindrical socket column E4 and are located above the tray E7. A tray pushing assembly E11 is provided between the tray E7 and the frame 400. The seal ring stacking module E1 includes 6 groups circumferentially distributed on the turntable E8. The turntable E8 is rotatably connected to the frame 400 and is driven to rotate by a turntable rotation driving assembly E18. A clearance through hole E9 that allows the tray pushing assembly E11 to pass through is provided on the turntable E8 below the tray E7. The seal ring stacking module E1 further includes an annular base E28. The vertical rods E5 are vertically fixed on the top surface of the annular base E28. The annular base E28 is detachably fixed to the turntable E8 through a quick fixing structure E15. Several first clearance grooves E10 that allow the upper supporting pawls E21 to extend into are evenly distributed circumferentially on the tray E7. The radial outer sides of the first clearance grooves E10 are open. The tray pushing assembly E11 includes a first linear driver vertically fixed on the frame 400. The output end of the first linear driver can pass through the clearance through hole E9 to push the tray E7 upward.

[0093] Specifically, the sealing ring stacking module E1 is composed of a plurality of vertical rods E5, and the vertical rods E5 are distributed in a circular shape to form a cylindrical sleeve column E4, which is used to sleeve the radial sealing ring 200, and the clearance gap E6 between the vertical rods E5 is used for the upper support material ratchet E21 of the sealing ring transfer structure E2 to enter, so as to ensure that the uppermost sealing ring can be removed by means of internal support, and a vertically liftable tray E7 is also provided on the cylindrical sleeve column E4, and the tray E7 is driven by the tray pushing assembly E11 to be able to rise and fall, and is mainly used to push the sealing ring on the cylindrical sleeve column E4 upward as a whole, so as to ensure that the uppermost sealing ring is close to the upper end, so as to facilitate the removal of the upper support material ratchet E21. There are multiple groups of sealing ring stacking modules E1, which are circumferentially distributed on the turntable E8. The turntable E8 can rotate the sealing ring stacking modules E1 with installed sealing rings to the bottom of the sealing ring transfer structure E2 for the sealing ring transfer structure E2 to remove them. The sealing ring stacking modules E1 with all the sealing rings removed can be rotated out to replenish the radial sealing rings 200 in time. A clearance through hole E9 is provided on the turntable E8 below each group of sealing ring stacking modules E1. The clearance through hole E9 is used to ensure that the corresponding sealing ring stacking module E1 can be smoothly pushed and matched by the telescopic end of the tray pushing assembly E11 when the corresponding sealing ring stacking module E1 is rotated to the bottom of the sealing ring transfer structure E2. The tray pushing assembly E11 can be specifically realized by a first linear drive such as a cylinder arranged vertically. The output end of the first linear drive extends to lift the tray E7 upward. The pushing effect is stable. When not needed, it can be lowered and exited from the clearance through hole E9 to ensure the normal rotation of the turntable E8. The annular base E28 of the sealing ring stacking module E1 is detachably fixed to the turntable E8, so that after the sealing rings are taken out and turned out, they can be removed in time for easy replenishment. Handles E17 for easy lifting can also be provided on both sides of the annular base E28. After replenishment is completed, it can also be easily fixed on the turntable E8, which is flexible to operate. In addition, a first clearance groove E10 is provided on the radial outer side of the tray E7 for the entry of the upper support material ratchet E21, ensuring that the sealing rings closest to the tray E7 can be smoothly and stably removed.

[0094] In this embodiment, the quick fixing structure E15 includes an L-shaped lock E16 that is rotatably connected to the top surface of the turntable E8 through a locking bolt. One annular base E28 corresponds to two L-shaped locks E16, and the horizontal fixing portion of the L-shaped lock E16 is in close contact with the annular base E28. The L-shaped lock E16 can rotate along the horizontal plane. When it needs to be fixed, its horizontal fixing portion is located above the annular base E28. By further tightening the locking bolt, the horizontal fixing portion can be pressed against the annular base E28 to ensure a stable fixation. The tray E7 has plug holes evenly distributed circumferentially, and the vertical rod E5 is provided with plug holes. The turntable rotation drive assembly E18 includes a first circumferential driver arranged on the frame 400, and the output end of the first circumferential driver is transmission-connected to the turntable E8.

[0095] As an optimization of this embodiment, a pushing extension frame E12 is connected to the output end of the first linear driver. The pushing extension frame E12 is slidably connected to the frame 400 through a sliding rod. At least two positioning posts E13 are provided on the pushing plate at the end of the pushing extension frame E12. Corresponding positioning holes E14 are provided on the bottom surface of the tray E7. Easy-entry guiding surfaces are provided at the lower ends of the positioning holes E14 and / or the upper ends of the positioning posts E13. During the pushing action, the positioning posts E13 on the pushing extension frame E12 are inserted into the positioning holes E14 on the tray E7, improving the stability of the tray E7 when it is lifted.

[0096] As Figure 14 , 15 As shown, the seal ring transfer structure E2 includes a pawl expanding hand E19. The pawl expanding hand E19 is provided on the expanding hand lifting structure E29 and can perform a vertical lifting action. The expanding hand lifting structure E29 is provided on the frame 400 through the expanding hand lateral movement structure E30 and can horizontally move laterally; the pawl expanding hand E19 includes an expanding hand mounting seat E20 and upper supporting material pawls E21 that are circumferentially distributed on the bottom surface of the expanding hand mounting seat E20 and extend vertically. An upper retracting and extending driving structure is provided between the upper supporting material pawls E21 and the expanding hand mounting seat E20; the upper retracting and extending driving structure includes a first conical frustum E22 provided between the upper supporting material pawls E21. The upper supporting material pawls E21 are slidably connected to the expanding hand mounting seat E20 through upper pawl seats. A first roller E23 is provided on the upper pawl seat near the first conical frustum E22. The first roller E23 rolls on the conical surface of the first conical frustum E22. A first elastic component E24 is provided between the upper pawl seat and the expanding hand mounting seat E20 to make the upper pawl seat tend to move towards the first conical frustum E22. The first conical frustum E22 is driven to lift by a first lifting driving component E25.

[0097] Specifically, the pawl expanding hand E19 is specifically formed by multiple groups of upper material supporting pawls E21 moving radially outward to achieve the effect of expanding and grasping the sealing ring. The upper material supporting pawls E21 are slidably connected to the bottom surface of the expanding hand mounting seat E20 through the upper pawl seat. Under the action of the first elastic component E24, the first roller E23 of the pawl seat rolls closely on the first conical frustum E22. The first conical frustum E22 is smaller at the lower end and larger at the upper end, and a circular hole groove is provided at the lower end. This circular hole groove is beneficial for achieving lightweight and helps prevent the first conical frustum E22 from interfering with the related structures below during the descending movement. Through the lifting action of the first conical frustum E22, the radial distance between the first roller E23 and the axis of the frustum can be controlled, and then the synchronous radial in-and-out movements of multiple groups of upper material supporting pawls E21 can be achieved to ensure the inner expansion effect. Among them, the first lifting drive assembly E25 includes a second linear driver vertically arranged on the expanding hand mounting seat E20, and the output end of the second linear driver is connected to the top surface of the first conical frustum E22. On one side of the upper pawl seat away from the first conical frustum E22, there is a first cross bar E26 extending along the moving direction. The first cross bar E26 passes through the first abutting block E27 on the bottom surface of the expanding hand mounting seat E20. The first elastic component E24 includes a first spring sleeved on the first cross bar E26 and compressed between the first abutting block and the upper pawl seat.

[0098] As a further optimization of this embodiment, a detection camera B5 is provided on the frame 400 for detecting whether the radial sealing ring 200 on the pawl expanding hand E19 is installed reversely. There is a reverse-installed material basket B6 on the side of the sealing ring turntable E3. A hand expanding longitudinal movement structure is provided between the hand expanding transverse movement structure E30 and the hand expanding lifting structure E29, which is used to transfer and remove the material to the reverse-installed material basket B6 when it is detected that the radial sealing ring 200 is installed reversely. The hand expanding transverse movement structure E30 includes a first transverse movement frame slidably connected to both ends of the frame 400, and the first transverse movement frame is driven to move by the first transverse movement drive assembly. The hand expanding longitudinal movement structure includes a first longitudinal movement seat slidably connected to the transverse movement frame, and the first longitudinal movement seat is driven to move by the first longitudinal movement drive assembly. The hand expanding lifting structure E29 includes a hand expanding lifting seat slidably connected to the first longitudinal movement seat through a sliding rod. The hand expanding lifting seat is connected to a third linear driver arranged on the first longitudinal movement seat. The expanding hand mounting seat E20 is fixed below the hand expanding lifting seat. The third linear driver is arranged on the hand expanding lifting seat, and its output end passes through the expanding hand mounting seat E20 and is connected to the first conical frustum E22.

[0099] Specifically, since the radial sealing ring 200 is manually sleeved on the cylindrical socket column E4, during the sleeving process and the pushing process of the tray E7, the situation of the inner ring being outside or being twisted and installed reversely may occur. The detection camera B5 detects this abnormality visually. When the hand expanding longitudinal movement structure detects the reverse-installation abnormality, it can control the pawl expanding hand E19 to transfer the sealing ring above the reverse-installed material basket B6 for removal.

[0100] As shown Figure 16 in the figure, the seal ring transfer table E3 includes an annular transfer base E31 arranged on the frame 400. A number of lower material supporting pawls E32 are circumferentially distributed on the top surface of the transfer base E31. The lower material supporting pawls E32 are slidably connected to the transfer base E31 through lower pawl seats and are driven to move radially by a lower retracting and extending driving structure for expanding and removing the radial seal ring 200 on the seal ring transfer structure E2. The lower retracting and extending driving structure includes a second conical frustum E33 arranged between the lower material supporting pawls E32. The lower material supporting pawls E32 are slidably connected to the transfer base E31 through lower pawl seats. A second roller E34 is arranged on the side of the lower pawl seat close to the second conical frustum E33. The second roller E34 rolls on the conical surface of the second conical frustum E33. A second elastic component E35 is arranged between the lower pawl seat and the transfer base E31 to make the lower pawl seat have a tendency to move towards the second conical frustum E33. The second conical frustum E33 is driven to move up and down by a second lifting driving component E36. The seal ring transfer table E3 is arranged on a second transverse moving frame slidably connected to the frame 400. The second transverse moving frame is driven to move by a second transverse moving driving component for controlling the seal ring transfer table E3 to move between the seal ring transfer structure E2 and the seal ring transfer and loading structure B3.

[0101] Specifically, the lower material supporting pawl E32 is the same as the upper material supporting pawl E21 and will not be repeatedly explained. The seal ring transfer table E3 can be horizontally translated to achieve the transfer between the seal ring transfer structure E2 and the seal ring transfer and loading structure B3. Among them, the second lifting driving component E36 includes a fourth linear driver vertically arranged on the second transverse moving frame. The output end of the fourth linear driver is connected to the top surface of the second conical frustum E33. A second cross bar extending along the moving direction is arranged on the side of the lower pawl seat far from the second conical frustum E33. The second cross bar passes through a second abutting block on the top surface of the transfer base E31. The second elastic component E35 includes a second spring sleeved on the second cross bar and compressed between the second abutting block and the lower pawl seat.

[0102] As shown Figure 17As shown, the seal ring transfer structure B3 includes a docking cylinder B12 with an opening facing downwards. A number of second relief grooves B13 that extend vertically and are open at the lower ends are evenly distributed circumferentially at the lower end of the docking cylinder B12. The docking cylinder B12 is slidably connected to the docking cylinder connection hole B14 of the annular assembly base B30 and is driven to move up and down by the docking cylinder lifting drive assembly B29. The assembly base B30 is fixed to the bottom of the assembly lifting seat B15; the assembly lifting seat B15 is slidably connected to the lower part of the assembly transverse movement frame through a sliding rod and can be driven to move up and down by the assembly lifting drive assembly. The assembly transverse movement frame is slidably connected to the upper part of the machine frame 400 and can be driven by the third transverse movement drive assembly to move between the assembly station and the seal ring turntable E3; the lower end of the docking cylinder B12 protrudes from the docking cylinder connection hole B14. The outer side thereof is used for sleeving the radial seal ring 200, and the inner side is used for docking with the upper end of the oil injection ring 100.

[0103] Specifically, the seal ring transfer structure B3 specifically receives the seal ring on the seal ring turntable E3 through the docking cylinder B12. The second relief grooves B13 at the lower end of the docking cylinder B12 are used for the passage of the lower support pawl E32, so that the lower support pawl E32 can radially contract to transfer the seal ring onto the docking cylinder B12. Moreover, the lower end of the docking cylinder B12 is open, so that it can be socket-connected to the upper end of the oil injection ring 100. An assembly base B30 can be slidably arranged relative to the outside of the docking cylinder B12. By moving the assembly base B30 downward relative to the docking cylinder B12, the seal ring at the lower end can be pushed out from the docking cylinder B12 to assist the seal ring assembly structure B4 in transferring and installing the seal ring onto the oil injection ring 100.

[0104] As Figure 18 、 19 shown, the seal ring assembly structure B4 includes a stripping frame B16 that is vertically slidably connected to the machine frame 400. The stripping frame can be driven to move vertically up and down by the stripping frame lifting drive assembly B19. A stripping through hole B17 that allows the seal ring transfer structure B3 to vertically pass through with the radial seal ring 200 is provided through the stripping frame B16. At least two stripping pieces B18 are evenly distributed circumferentially outside the stripping through hole B17. The stripping pieces B18 are slidably connected to the stripping frame B16 and are driven to move by the stripping piece entering and exiting drive assembly B20. The front end of the stripping piece B18 can extend above the radial seal ring 200 to strip the radial seal ring 200 from the docking cylinder B12 of the seal ring transfer structure B3 onto the oil injection ring 100 and press it downwards.

[0105] Specifically, a separation through hole B17 is provided on the separation frame B16 for the seal ring transfer structure B3 to vertically pass through with the radial seal ring 200. The inner side of the separation piece B18 is arc-shaped and adapted to the shapes of the seal ring and the oil injection ring 100. The separation piece in-and-out driving assembly B20 drives the separation piece B18 to move radially. The inner end of the separation piece B18 extends to the upper end of the seal ring. When the separation frame B16 moves downward, the separation piece B18 thereon can push down the seal ring and press it at a preset position to complete the assembly.

[0106] In this embodiment, two sets of vertical mounting frames are provided on the frame 400. Both ends of the separation frame B16 are slidably connected to the vertical mounting frames through a slide rail structure. The separation frame lifting driving assembly B19 includes a fifth linear driver provided on the frame 400 and having an output end connected to the separation frame B16. The separation piece in-and-out driving assembly B20 includes a sixth linear driver provided on the separation frame B16, and the output end of the sixth linear driver is connected to the separation piece B18.

[0107] As a further optimization, a flipping station for flipping the oil injection ring 100 with the radial seal ring 200 assembled thereon to facilitate the installation of the end face seal ring at the bottom subsequently is also provided on the frame 400. A flipping structure B21 is provided at the flipping station. The first oil injection ring carrier table translation driving assembly B28 can also move the first oil injection ring carrier table B2 from the assembly station to the flipping station. The flipping structure B21 includes flipping jaws B24. The flipping jaws B24 are provided on a jaw rotating seat B25. The jaw rotating seat B25 is rotatably connected to a jaw lifting seat B31 and can be driven by a flipping driving assembly B27 to rotate 180 degrees along a vertical plane. The jaw lifting seat B31 is vertically slidably connected to the frame 400 and can be driven by a flipping lifting driving assembly to perform a lifting action. The flipping jaws B24 include two L-shaped jaw bodies that are slidably connected to the jaw rotating seat B25 and are oppositely arranged. A synchronous telescopic driving assembly B26 is provided between the L-shaped jaw bodies and the jaw rotating seat B25. Protective pads are provided on the opposite sides of the L-shaped jaw bodies, and fitting notches adapted to the outer diameter of the oil injection ring 100 are provided on the protective pads.

[0108] Specifically, after the first fuel injection ring carrier B2 is assembled at the assembly station, it will also move to the flipping station. The flipping station is used to flip the fuel injection ring 100 through the flipping structure B21 so that the sealing groove at the lower end faces upward, facilitating the subsequent assembly process of the end face sealing ring assembly mechanism. The flipping structure B21 is specifically realized by the flipping jaws B24 that can rotate along the vertical plane. The flipping jaws B24 can be closed by two L-shaped claw bodies to clamp and grab the fuel injection ring 100. The flipping lifting drive assembly is used to lower the flipping jaws B24 to grab the fuel injection ring 100 to be flipped or place the fuel injection ring 100 after flipping. The flipping drive assembly B27 is used to drive the flipping jaws B24 to rotate 180 degrees with the fuel injection ring 100, which can stably achieve the flipping effect of the fuel injection ring 100. The setting of the protection cushion block can avoid damaging the outer wall of the fuel injection ring 100, and the fitting notch ensures the stability of grasping.

[0109] In this embodiment, a carrier slide rail B22 is provided on the frame 400. The carrier slide rail B22 passes through the lower part of the separating frame B16 of the sealing ring assembly structure B4. The first fuel injection ring carrier B2 is slidably connected to the carrier slide rail B22. The first carrier translation drive assembly B28 includes a linear motor module parallel to the carrier slide rail B22, and the linear motor module is connected to the first fuel injection ring carrier B2. An annular outer positioning convex body B23 is provided on the top surface of the first fuel injection ring carrier B2, and the inner diameter of the outer positioning convex body B23 is adapted to the outer diameter of the fuel injection ring 100. The flipping drive assembly B27 includes a second circumferential driver provided on the jaw lifting seat B31, and a jaw rotating seat B25 is provided on the rotating end of the second circumferential driver. The synchronous telescopic drive assembly B26 includes a double-headed cylinder fixed on the jaw rotating seat B25, and the two output ends of the double-headed cylinder are respectively connected to the L-shaped claw bodies.

[0110] The specific working principle of the radial sealing ring assembly mechanism: the injection ring 100 that is qualified before assembly is transferred to the No. 1 injection ring carrier B2 at the material receiving station, and the No. 1 injection ring carrier B2 moves to the assembly station to wait for the assembly of the radial sealing ring 200. At the same time, the upper support material pawl E21 of the sealing ring transfer structure E2 moves in a retracted state into the uppermost radial sealing ring 200 on the cylindrical sleeve column E4, and then expands to open the sealing ring for removal, and then transfers it to the lower support material pawl E32 of the sealing ring transfer station E3, and is opened by the lower support material pawl E32 to obtain it. Afterwards, the sealing ring turntable E3 moves to the bottom of one end of the moving path of the sealing ring transfer structure B3, and the lower end of the docking tube B12 descends and extends into the lower supporting material pawl E32. The lower supporting material pawl E32 is retracted to put the sealing ring on the lower end of the docking tube B12. Then, the docking tube B12 moves to dock to the upper end of the injection ring 100, and then the assembly base B30 descends a certain distance relative to the docking tube B12 and then rises and resets. Then the peeling piece B18 extends out, and its inner end enters the position between the sealing ring and the assembly base B30. Then, the peeling piece B18 descends to push the sealing ring down to the injection ring 100, and further descends to press the sealing ring against the radial sealing groove 103 of the injection ring 100. After the assembly is completed, the docking tube B12 and the peeling piece B18 are withdrawn. Afterwards, the No. 1 fuel injection ring carrier B2 moves the fuel injection ring 100 to the flipping station, the flipping jaw B24 descends to grab the fuel injection ring 100 and then lifts it up, the flipping jaw B24 rotates 180 degrees to make the lower end of the fuel injection ring 100 face upward, and then puts it back on the No. 1 fuel injection ring carrier B2 to be grabbed by the subsequent end face sealing ring assembly mechanism.

[0111] like Figures 20 - 22 As shown, the end face sealing ring assembly mechanism C1 includes a frame 400, on which a No. 2 oil injection ring carrier C2 is slidably connected. The No. 2 oil injection ring carrier C2 is driven to move by a No. 2 carrier translation drive assembly C24, and can move between a receiving station for receiving an oil injection ring 100 assembled with a radial sealing ring and an assembly station for assembling an end face sealing ring 300 onto the oil injection ring 100; the frame 400 is also provided with another set of sealing ring transfer tables E28 and another set of sealing ring stacking modules E1 for vertically distributing and storing the end face sealing rings 300. A corresponding sealing ring transfer structure E2 is provided between the sealing ring turntable E28 and the sealing ring stacking module E1, which is used to remove the end face sealing ring 300 at the upper end of the sealing ring stacking module E1 and transfer it to the sealing ring turntable E28; a sealing ring transfer structure C25 is provided between the sealing ring turntable E28 and the No. 2 injection ring carrier C2, which is used to remove the end face sealing ring 300 on the sealing ring turntable E28, and after docking with the upper end of the injection ring 100 on the assembly station, push the end face sealing ring 300 downward into the end face sealing groove 104 at the upper end of the injection ring 100.

[0112] Specifically, this end face seal ring assembly mechanism is used to assemble the end face seal ring 300 for the fuel injection ring 100 after the radial seal ring is assembled and turned over. The seal ring is clamped in the end face seal groove 104 on the upper end face of the fuel injection ring 100. The fuel injection ring 100 is placed on the fuel injection ring carrier C2, and the fuel injection ring carrier C2 realizes the transfer action between each working station. The seal rings to be installed are sleeved and stacked on the seal ring stacking module E1, distributed axially, and adjacent seal rings do not overlap radially, ensuring the sequential grasping of the seal ring transfer structure E2. The seal ring transfer structure E2 is used to pick the topmost seal ring on the seal ring stacking module E1 from above and move it to the seal ring transfer table E28. The seal ring transfer and installation structure C25 is used to pick the seal ring on the seal ring transfer table E28 from above. The grippers of both are in the downward state. The seal ring transfer table E28 is used for the transfer and transition of the seal ring between the two. After the seal ring transfer and installation structure C25 picks up the seal ring, it enters the assembly station and assembles it to the predetermined position. This assembly mechanism has a high degree of automation and good assembly efficiency.

[0113] As Figure 20 、 21 shown, the seal ring transfer and installation structure C25 includes a transfer and installation base C3. An annular transfer cylinder C4 is provided on the bottom surface of the transfer and installation base C3. A push ring C5 is sleeved outside the transfer cylinder C4. A push ring lifting structure C6 is provided between the push ring C5 and the transfer and installation base C3. The transfer and installation base C3 is connected to the transfer lifting structure C7. A transfer transverse movement structure C8 is provided between the transfer lifting structure C7 and the frame 400. A positioning auxiliary structure C9 is further provided on the radially outer side of the push ring C5. The positioning auxiliary structure C9 includes 4 arc-shaped positioning pieces C10 that are circumferentially distributed on the transfer and installation base C3 and can slide radially. The arc-shaped positioning pieces C10 are connected to the radially in-and-out drive assembly C11. An arc-shaped docking groove C12 is provided at the lower part of the inner side of the arc-shaped positioning piece C10. The docking groove C12 is in contact with the outer side wall of the upper end of the fuel injection ring 100. A transfer positioning gap C13 allowing the end face seal ring 300 and the push ring C5 to pass through is formed between the inner side wall of the upper end of the arc-shaped positioning piece C10 and the outer side wall of the transfer cylinder C4.

[0114] Specifically, the sealing ring transfer structure C25 transfers the sealing ring through the transfer cylinder C4. The transfer cylinder C4 is set on the frame 400 through the transfer lifting structure C7. The transfer cylinder C4 descends to the lower end and enters the radial inner side of the sealing ring on the lower support material pawl E32. The lower support material pawl E32 is retracted to achieve the effect of clamping the sealing ring on the transfer cylinder C4. The transfer transverse movement structure C8 is used for driving the movement between the sealing ring transfer position and the No. 2 injection ring carrier C2. A push ring C5 is also sleeved on the outside of the transfer cylinder C4. The push ring C5 can push the sealing ring at the lower end into the end face sealing groove 104 after the transfer cylinder C4 is docked on the injection ring 100, so as to achieve the effect of transfer and assembly. In addition, the positioning auxiliary structure C9 is used to position the injection ring 100 from the upper end to ensure that the injection ring 100 and the transfer cylinder C4 are in a coaxial position to ensure the accurate pushing in of the sealing ring. The arc-shaped positioning piece C10 can move radially, and the inner side wall of its lower end is provided with a radially outwardly concave docking groove C12. When positioning, the positioning groove of its lower end fits with the outer side of the upper end of the injection ring 100, and the inner side wall above the groove forms an annular transfer positioning gap C13 with the outer side wall of the transfer cylinder C4, which is used for the axial movement of the push ring C5 and the sealing ring. In addition, the radial depth of the docking groove C12 is adapted to the thickness of the end face sealing ring 300 or the push ring C5, ensuring that both can move and further ensuring accurate assembly.

[0115] In this embodiment, the transferring and transverse shifting structure C8 includes a transferring and transverse shifting frame slidably connected to the upper part of the frame 400 through a slide rail, and the transferring and lifting structure C7 includes a transferring and lifting frame slidably connected to the transferring and transverse shifting frame through a slide rod. A transferring and transverse shifting linear drive having an output end connected to the transferring and transverse shifting frame is laterally arranged on the frame 400, and a transferring and lifting linear drive having an output end connected to the transferring and lifting frame is vertically arranged on the transferring and transverse shifting frame.

[0116] like Figure 21 As shown, the bottom surface of the transfer cylinder C4 is evenly distributed with axially extending and open-end clearance grooves C14 in the circumferential direction, and the width and depth of the clearance grooves C14 are adapted to the lower support material pawls E32 on the sealing ring turntable E28; the transfer base C3 is radially extended with a plurality of installation extensions C15, and the installation extensions C15 are provided with radial in-and-out drive components C11, and a height detection component C16 is detachably provided between adjacent installation extensions C15 for detecting the position of the end face sealing ring 300; the height detection component C16 includes a signal generator and a signal receiver whose connection line passes through the clearance grooves C14, and the signal generator and the signal receiver are fixed on the detector installation sheet C17, and the two ends of the detector installation sheet C17 are detachably fixed to the installation extensions C15 on the adjacent two sides. The radial in-and-out drive component C11 includes an in-and-out drive cylinder fixed to the bottom of the installation extension C15, and an arc-shaped positioning sheet C10 is fixed to the output end of the in-and-out drive cylinder.

[0117] Specifically, a clearance groove C14 is provided at the lower end of the transfer cylinder C4, and the clearance groove C14 is used for the passage of the lower supporting material pawl E32, ensuring that the lower supporting material pawl E32 is smoothly withdrawn to clamp the sealing ring on the transfer cylinder C4. The outer diameter of the transfer cylinder C4 is adapted to the diameter of the inner wall of the end face sealing groove 104, that is, the outer wall of the transfer cylinder C4 and the inner wall of the end face sealing groove 104 are smoothly connected to ensure the accurate assembly of the sealing ring. The height of the height detection component C16 is adapted to the clearance groove C14, and its signal generator and signal receiver are located on the outside of the clearance groove C14, that is, the signal can radially penetrate the transfer cylinder C4, which can be used to detect the descending height of the transfer cylinder C4, ensuring that the sealing ring can be stably clamped to the corresponding position when the lower supporting material pawl E32 is withdrawn, and the height detection component C16 is fixed by the detector mounting plate C17 and bolts, and has flexible detachability.

[0118] As an optimization of this embodiment, a lower annular step with the step surface facing upward is provided on the outer side wall of the transfer cylinder C4, and an upper annular step with the step surface facing downward is provided on the inner side wall of the push ring C5, and the upper annular step is located above the lower annular step. The upper annular step and the lower annular step are used to limit the maximum descending stroke of the push ring C5 to prevent it from falling out.

[0119] like Figure 22 As shown, the No. 2 oil injection ring carrier C2 is slidably connected to the frame 400 through a slide rail, and an annular positioning step C18 is provided on the top surface of the No. 2 oil injection ring carrier C2, and the outer diameter of the annular positioning step C18 is adapted to the inner diameter of the lower part of the oil injection ring 100; the No. 2 carrier translation drive assembly C24 includes a linear motor arranged on the frame 400, and the output end of the linear motor is connected to the No. 2 oil injection ring carrier C2; after the assembly at the assembly station is completed, the No. 2 oil injection ring carrier C2 is also moved to the downstream inspection station, and the inspection station is provided with an assembly completion inspection structure C19 and an NG rejection structure C20. The assembled inspection structure C19 includes a camera inspection component C21 arranged on the side of the inspection station, and the NG rejection structure C20 includes an NG material output conveyor belt C22. An internal expansion support arm C23 is provided between the upstream of the NG material output conveyor belt C22 and the inspection station. The internal expansion support arm is slidably connected to the upper part of the frame 400 and can be lifted vertically to grab the injection ring 100 that has been inspected at the inspection station and transfer the injection ring 100 with unqualified inspection results to the NG material output conveyor belt C22.

[0120] Specifically, the annular positioning step C18 on the second fuel injection ring carrier C2 is used to position and limit the fuel injection ring 100 thereon, ensuring the accurate docking and cooperation of related processes. The rear end of the moving path of the fuel injection ring 100 also involves an inspection station. The inspection structure after assembly at this station is used to inspect all assembled fuel injection rings 100, and the products with NG inspection results are removed by the NG removal structure C20, improving the qualified rate of finished products. The inspection structure C19 after assembly specifically performs relevant inspections visually by the camera inspection component C21. The image data captured by the camera inspection component C21 is transmitted to the control computer, and the control computer analyzes to obtain the inspection results. The NG material output conveyor belt C22 is used to output NG parts. The expandable inner gripper C23 that can be lifted and translated is used to grab NG parts and place them upstream of the NG material output conveyor belt C22 to achieve automatic removal.

[0121] In this embodiment, the expandable inner gripper C23 includes a gripper mounting table fixed thereto, and three support rods that are circumferentially and evenly distributed on the gripper mounting table and can radially expand and contract. The gripper mounting table is slidably connected to the upper part of the frame 400 through a gripper transverse movement frame and is connected to a gripper transverse movement driver. The gripper mounting table is slidably connected to the gripper transverse movement frame in a vertically liftable manner and is connected to a gripper lift driver. A support rod expansion and contraction drive assembly is provided between the gripper mounting table and the support rods, and an elastic cushion layer is provided at the outer end of the support rods.

[0122] Specific working principle of the end face seal ring assembly mechanism: After the oil injection ring 100 has completed the radial seal ring assembly and is turned over so that the end face seal groove 104 faces upward, it is transferred to the second oil injection ring carrier C2 of this end face seal assembly mechanism, and the second oil injection ring carrier C2 moves to the assembly station. At the same time, the seal ring transfer structure E2 picks up an end face seal ring 300 at the uppermost end of the cylindrical socket column E4 and transfers it to the seal ring transfer table E28. Then the seal ring transfer table E28 moves to the lower part of the seal ring transfer and installation structure C25. The transfer cylinder C4 descends to the lower end and enters the radial inner side of the seal ring. The lower support pawl E32 retracts, and this seal ring hoop is transferred to the transfer cylinder C4. Then the transfer cylinder C4 moves above the oil injection ring 100 at the assembly station and makes its lower end face almost in contact with the upper end face of the oil injection ring 100. The arc-shaped positioning piece C10 moves inward, and its docking groove C12 is in contact with the upper end of the oil injection ring 100 to complete the positioning. Then the push ring C5 moves downward, pushing the end face seal ring 300 into the end face seal groove 104 and pressing it appropriately so that the low end of the seal ring is in contact with the bottom of the end face seal groove 104, and the assembly is in place. The arc-shaped positioning piece C10 and the docking cylinder retract and reset. Then the second oil injection ring carrier C2 transfers this oil injection ring 100 to the detection station. The detection camera assembly captures image data and transmits it to the control computer. The control computer calculates and analyzes. When the detection result is NG, the inner expansion type gripper C23 transfers this NG part to the NG material output conveyor belt C22, and this conveyor belt transports the NG part to the corresponding collection area. Those with qualified detection results are transferred to the subsequent pressure change testing mechanism.

[0123] As Figures 23 - 25 shown, the pressure change detection mechanism D1 includes a frame 400. A pressure change test table D2 and a vision detection table D3 are provided on the frame 400. The pressure change test table D2 is slidably connected to the frame 400 and is connected to the pressure test table translation drive assembly D4, and can reciprocate between the material receiving position for receiving the oil injection ring 100 with the seal ring assembly completed and the pressure change test position below the pressure test assembly D35. A second transfer assembly D5 for transferring the oil injection ring 100 with the pressure change test completed to the vision detection table D3 is provided between the vision detection table D3 and the material receiving position. A vision detection component D34 is provided on the side of the vision detection table D3.

[0124] Specifically, this pressure deformation detection mechanism is used to perform pressure deformation tests on the fuel injection ring 100 after the radial sealing ring 200 and the end face sealing ring 300 are assembled, to detect whether parameters such as its compressive capacity are qualified and up to standard, and to ensure the qualification rate of the finished products. The fuel injection ring 100 to be detected is placed on the pressure deformation test bench D2 and transferred to the pressure deformation test position for detection by it. The pressure test component D35 applies an axially downward pressure to the fuel injection ring 100 from above, and indirectly measures the deformation amount by the pressure change of the pressure plate D8 after pressing into a corresponding distance. Moreover, a vision detection bench D3 and a vision detection component D34 are also provided on the frame 400. By capturing the corresponding image data, the control computer or the monitoring personnel further detect the situation after deformation, so as to improve the quality of the finally output products.

[0125] As Figure 23 shown, the pressure test component D35 includes a pressure testing machine D6. The pressure testing machine D6 is vertically arranged above the frame 400 through a gantry D7; the pressure testing machine D6 includes a pressure plate D8 arranged on the gantry D7 through a hydraulic system D36, and a pressure sensor is provided between the pressure plate D8 and the hydraulic system D36. There are two sets of corresponding pressure testing machines D6 and pressure deformation test benches D2. The pressure deformation test benches D2 are arranged along the transfer direction of the second transfer component D5 and can perform pressure deformation tests respectively. The pressure deformation test bench D2 is slidably connected to the frame 400 through a slide rail. The pressure test bench translation drive component D4 includes a linear driver arranged on the frame 400. The output end of the linear driver is connected to the pressure deformation test bench D2. A press calibration component D9 is provided on the pressure deformation test bench D2, and the height of the press calibration component D9 is adapted to the height of the fuel injection ring 100.

[0126] Specifically, the pressure test component D35 is specifically realized by the pressure testing machine D6. The pressure plate D8 of the pressure testing machine D6 is used to apply pressure downward specifically from the upper end face to the fuel injection ring 100. The hydraulic system D36 provides the downward driving force, and the pressure sensor is used to detect the pressure value between the pressure plate D8 and the fuel injection ring 100. Multiple sets of pressure testing machines D6 and pressure deformation test benches D2 are provided, which can provide the corresponding number of pressure deformation test positions and can detect multiple fuel injection rings 100 respectively. Moreover, each group is independent of each other to avoid mutual interference. In addition, since the pressure deformation test takes relatively longer time than other assembly processes, setting multiple pressure deformation test positions helps to match the beats between each process and ensure the efficient operation of the fuel injection ring sealing ring assembly line. The pressure deformation test bench D2 is slidably arranged through a slide rail to ensure stable load-bearing capacity during sliding, and the linear driver is used to specifically drive the stable movement of the pressure deformation test bench D2. The press calibration component D9 can ensure that the pressure output of the pressure testing machine D6 meets the design requirements, thereby improving the accuracy of the pressure deformation test.

[0127] As Figure 23 、 24As shown in the figure, the vision inspection table D3 includes a detection base D10 disposed on the frame 400 and a mounting disc D11 detachably fixed to the detection base D10. Four groups of slidably connected inner support type positioning blocks D12 are circumferentially distributed on the top surface of the mounting disc D11. A radial translation drive structure D13 is provided between the mounting disc D11 and the inner support type positioning blocks D12. The radial translation drive structure D13 includes a pneumatic cylinder body D14 disposed at the center of the top surface of the mounting disc D11. The inner support type positioning blocks D12 are slidably connected to the mounting disc D11 through slide rails and are connected to the power chamber of the pneumatic cylinder body D14 through connecting slide rods D15. The power chamber is connected to a gas charging and discharging assembly D16. The inner support type positioning block D12 includes an arc-shaped main body D17. A supporting table D18 radially protrudes from the outer side of the arc-shaped main body D17. The bottom surface of the oil injection ring 100 is attached to the top surface of the supporting table D18, and the inner side surface is attached to the outer side surface of the arc-shaped main body D17. A pipeline connection through hole D19 is provided on the mounting disc D11 to make way for the connection pipeline between the pneumatic cylinder body D14 and the gas charging and discharging assembly D16.

[0128] Specifically, multiple groups of inner support type positioning blocks D12 are arranged on the mounting disc D11 of the vision inspection table D3. The effect of positioning and fixing is achieved by expanding from the radially inner side of the oil injection ring 100 to the outside, ensuring the smooth realization of vision inspection. An arc-shaped main body D17 is arranged on the mounting disc D11 so as to be radially telescopic and movable. The outer side wall of the arc-shaped main body D17 is exactly attached to the oil injection ring 100, ensuring accurate positioning and preventing damage to the oil injection ring 100 at the same time. The movement of the arc-shaped main body D17 is realized by the pneumatic cylinder body D14 in a pneumatic manner. The pipeline connection through hole D19 is arranged on the mounting disc D11 so that the connection pipeline can pass through to realize the connection between the pneumatic cylinder body D14 and the gas charging and discharging assembly D16. An easy-entry chamfer is also provided on the outer side of the upper end of the arc-shaped main body D17, facilitating the preliminary positioning when the oil injection ring 100 is vertically placed down.

[0129] Such as Figure 24As shown in the figure, the visual inspection component D34 includes a set of inspection cameras D20 fixed on the frame 400, and the inspection cameras D20 face the visual inspection table D3. On both sides of the visual inspection table D3, there are also two sets of oppositely arranged positioning rollers D21. Each set of positioning rollers D21 includes two rollers. The positioning rollers D21 are horizontally rotatably connected to one side of the roller seat D37 near the visual inspection table D3. The roller seat D37 is slidably connected to the roller base D38 in a radially movable manner and is connected to the roller translation driver D22. The roller base D38 is slidably connected to the frame 400 in a vertically liftable manner and is connected to the roller lift driver D23. The side wall of the positioning roller D21 is provided with an elastic rough surface, and there is also a roller rotation drive component between its axle and the roller seat D37 for driving the rotation of the positioning roller D21 to drive the fuel injection ring 100 to rotate. There is also a lighting component D24 on the frame 400, and the lighting component D24 faces the visual inspection table D3.

[0130] Specifically, the positioning roller D21 re - positions the fuel injection ring 100 from the radial outside. Moreover, an elastic rough surface for increasing friction is provided on the part of the outer side wall of the positioning roller D21 that contacts the outer side wall of the fuel injection ring 100. This elastic rough surface has a certain elasticity and can adaptively deform for parts such as small convex bodies on the outer wall of the fuel injection ring 100, ensuring stable frictional transmission while avoiding damaging the fuel injection ring 100. When the positioning roller D21 rotates, it can drive the fuel injection ring 100 to rotate. During the rotation process, the inspection camera D20 captures relevant image data. Moreover, the roller seat D37 can move up and down, so that for fuel injection rings 100 of different models, the positioning roller D21 can be lifted to an appropriate height to ensure coordination with the position suitable for contacting the outer side of the fuel injection ring 100, improving compatibility. To improve the clarity of the captured images, a lighting component D24 is specially provided on the frame 400 to ensure the smooth realization of visual inspection.

[0131] As a further optimization, unpowered rollers are circumferentially arranged on the outer side of the arc - shaped main body D17, which helps the fuel injection ring 100 to be driven by the positioning roller D21 and rotate smoothly.

[0132] Such as Figure 23 、 25As shown in the figure, the second transfer assembly D5 includes two jaw seats D25. The first jaw seat D25 moves between the piezoresistive test position and the vision inspection position. Two mutually parallel horizontally extending strip-shaped jaw bodies D26 are slidably connected thereto. The two strip-shaped jaw bodies D26 are connected to a double-headed synchronous cylinder D27 and can be closed to clamp and fix the fuel injection ring 100. The second jaw seat D25 moves between the vision inspection position and the discharge conveyor D32. Four circumferentially uniformly distributed and downwardly extending L-shaped jaws D28 are slidably connected thereto. The upper ends of the L-shaped jaws D28 are connected to a pneumatic drive structure D29 and can be radially closed to pick up the fuel injection ring 100. The jaw seat D25 is slidably connected to the jaw slide table in a vertically liftable manner and is connected to a jaw lift drive assembly D30. The jaw seat D25 is slidably connected to the frame 400 in a laterally movable manner and is connected to a jaw translation drive assembly D31.

[0133] Specifically, the second transfer assembly D5 specifically grabs the fuel injection ring 100 in a clamping manner from the radially outer side through the annularly arranged L-shaped jaws D28 or the parallelly arranged strip-shaped jaw bodies D26, avoiding interference with the inner support positioning block D12 on the vision inspection table D3. The jaw seat D25 can perform lifting and translation movements to realize the function of transferring the fuel injection ring 100. Moreover, there are two sets of the second transfer assemblies D5, which are respectively used for the transfer between the piezoresistive test position and the vision inspection table D3, and for picking up and discharging from the vision inspection table D3. There is a height difference between the two sets of second transfer assemblies D5. The jaw seat D25 of the first set of second transfer assemblies D5 slides on the table surface of the frame 400, and the other set slides on the upper part, so that the two sets of slide rails have a cross in the stroke to ensure smooth transfer.

[0134] In this embodiment, the pneumatic drive structure D29 includes a jaw pneumatic cylinder body D32. The horizontal section of the L-shaped jaw D28 is slidably connected to the pneumatic cylinder body D14, and a power chamber is provided therebetween. The power chamber is connected to a gas charging and discharging assembly D16. The jaw slide table is slidably connected to the upper part of the frame 400 through a slide rail. The jaw translation drive assembly D31 includes a linear motor provided on the frame 400 and having an output end connected to the jaw slide table. The jaw lift drive assembly D30 includes a jaw lift cylinder with a vertically fixed cylinder body on the jaw slide table. The output end of the jaw lift cylinder is provided with a jaw seat D25. There are also two sets of discharge conveyors D32 in the downstream direction of the second transfer assembly D5. One set of discharge conveyors D32 is used to output NG materials, and the other set of discharge conveyors D32 is used to output qualified materials. The upstream end of the discharge conveyor D32 is docked below the transfer path of the second transfer assembly D5. It can realize the separate output of NG parts and qualified parts to ensure the quality of the final product.

[0135] Specific working principle of the piezoresistive pressure testing mechanism: After the radial sealing ring and the end face sealing ring of the fuel injection ring 100 are assembled, it is transferred to the piezoresistive pressure testing platform D2. Then, the piezoresistive pressure testing platform D2 moves below the pressure testing machine D6, and the pressure plate D8 descends and presses on the upper end of the fuel injection ring 100. The pressure sensor transmits the corresponding pressure data and stroke data to the control computer, and the control computer calculates and analyzes the qualified situation of the piezoresistive pressure test. After the test is completed, the piezoresistive pressure testing platform D2 moves out from below the pressure test area, and the second transfer assembly D5 transfers the fuel injection ring 100 that has completed the piezoresistive pressure test to the vision inspection platform D3. Then, the inner support positioning block D12 moves radially outward, and the unpowered rotating wheel on it contacts the inner side wall of the fuel injection ring 100. At the same time, the positioning roller D21 moves radially inward and adheres to the outer side wall of the fuel injection ring 100. The rotation of the positioning roller D21 drives the fuel injection ring 100 to rotate. Under the illumination of the lighting assembly D24, the inspection camera D20 obtains the corresponding image data and transmits it to the control computer for calculation and analysis by the control computer. After the vision inspection is completed, the inner support positioning block D12 and the positioning roller D21 return to their original positions. The second transfer assembly D5 transfers the fuel injection ring 100 to the corresponding discharge conveyor belt D33 according to the inspection results, and the piezoresistive pressure test is completed.

[0136] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways for substitution, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An injection ring seal assembly line, comprising a frame (400), characterized in that, On the described frame (400), the following are successively arranged: A pre-assembly inspection mechanism (A1) for inputting the fuel injection ring (100) to be processed with the radial sealing groove (103) facing upwards and the end face sealing groove (104) facing downwards, and performing hole penetration detection and dimension detection on it; A radial sealing ring assembly mechanism (B1) for assembling the radial sealing ring (200) on the qualified fuel injection ring (100) detected by the pre-assembly inspection structure, and turning it over after the assembly is completed; An end face sealing ring assembly mechanism (C1) for assembling the end face sealing ring (300) on the fuel injection ring whose radial sealing ring has been assembled and turned over; A pressure change detection mechanism (D1) for performing a pressure change test on the fuel injection ring (100) on which the radial sealing ring (200) and the end face sealing ring (300) have been assembled; A transfer mechanism for transferring the fuel injection ring (100) between various mechanisms; The pre-assembly inspection mechanism (A1), the radial sealing ring assembly mechanism (B1), the end face sealing ring assembly mechanism (C1), the pressure change detection mechanism (D1), and the transfer mechanism are respectively connected to a control computer, and the control computer analyzes the detection data and controls the coordinated actions of each mechanism; The pressure change detection mechanism (D1) includes a pressure change test bench (D2) and a vision detection bench (D3) arranged on the frame (400). The pressure change test bench (D2) is slidably connected to the frame (400) and is connected to a pressure test bench translation drive assembly (D4). It can be used to receive the material receiving position of the fuel injection ring (100) on which the sealing ring has been assembled and move it below the pressure test assembly (D35). A vision detection component (D34) is arranged on the side of the vision detection bench (D3); The pressure test assembly (D35) includes a pressure testing machine (D6). The pressure testing machine (D6) includes a pressure plate (D8) arranged on a gantry (D7) through a hydraulic system (D36). A pressure sensor is arranged between the pressure plate (D8) and the hydraulic system (D36); At least two groups corresponding to each other are provided between the pressure testing machine (D6) and the pressure change test bench (D2); A press calibration component (D9) adapted to the height of the fuel injection ring (100) is arranged on the pressure change test bench (D2); The vision detection bench (D3) includes a detection base (D10) arranged on the frame (400) and a mounting disc (D11) detachably fixed on the detection base (D10). At least three groups of internally supported positioning blocks (D12) connected in a sliding manner are circumferentially distributed on the top surface of the mounting disc (D11). The internally supported positioning blocks (D12) are connected to a radial translation drive structure (D13); Two groups of positioning rollers (D21) are also arranged on two opposite sides of the vision detection bench (D3). Each group of the positioning rollers (D21) has at least two. The positioning rollers (D21) are rotatably connected to one side of the roller seat (D37) close to the vision detection bench (D3). The roller seat (D37) is arranged on the roller base (D38) in a radially movable manner, and the roller base (D38) is arranged on the frame (400); The positioning roller (D21) is connected to the roller rotation driving assembly and can rotate to drive the fuel injection ring (100) to rotate.

2. The fuel injection ring seal assembly line according to claim 1, wherein The pre-assembly inspection mechanism includes: A rotation positioning module (A2) for rotating the fuel injection ring (100) to a predetermined angle; A coding and marking module (A3) for marking processing information on the fuel injection ring (100); A hole penetration detection module (A4) for detecting the penetration of the radial through holes (102) on the fuel injection ring (100); A dimension detection module (A5) for detecting the outer diameter of the fuel injection ring (100), the width of the radial sealing groove (103), and the smoothness of the outer wall; A classification and discharging module (A6) for classifying and outputting NG parts according to specific NG reasons; The rotation positioning module (A2), the coding and marking module (A3), the hole penetration detection module (A4), the dimension detection module (A5), and the classification and discharging module (A6) are respectively connected to a control computer.

3. The fuel injection ring seal assembly line according to claim 2, characterized in that, The rotation positioning module (A2) includes a rotation positioning table (A8) arranged on the frame (400). A plurality of positioning and detection components (A9) are arranged on the side of the rotation positioning table (A8). A rotatable first rotation table top (A10) is arranged on the top surface of the rotation positioning table (A8), and the first rotation table top (A10) is connected to a first rotation driving assembly (A11); The positioning and detection component (A9) includes a first laser generator and a first receiver which are located on both sides of the rotation positioning table (A8) and are arranged oppositely, and the first laser generator and the first receiver are adapted to the height of the lug (101) at the upper end of the fuel injection ring (100); The hole penetration detection module (A4) includes a hole penetration detection table (A13) arranged on the frame (400). A plurality of arc-shaped mounting blocks (A14) capable of radial movement are slidably arranged on the hole penetration detection table (A13) in the radial direction. An air outlet nozzle (A16) connected to a flow detector is arranged on the arc-shaped mounting block (A14). The intake end of the air outlet nozzle (A16) is connected to a high-pressure gas generating assembly, and the outlet end corresponds to the radial through holes (102) of the fuel injection ring (100) one by one; The dimension detection module (A5) includes a rotation detection table (A17), and at least one group of dimension detection components (A22) are arranged on the side of the rotation detection table (A17); The rotation detection table (A17) includes a detection table base (A18) capable of vertical lifting and a second rotation table top (A19) capable of circumferential rotation; The classification and discharging module (A6) includes a discharging transfer table (A23). At least two groups of NG part output conveyor belts (A24) are vertically distributed on one side of the discharging transfer table (A23). An NG part top block (A25) is slidably connected to the discharging transfer table (A23). A top pushing assembly (A26) is arranged between the NG part top block (A25) and the discharging transfer table (A23). A discharging lifting driving assembly (A27) is arranged between the discharging transfer table (A23) and the frame (400); The described coding and marking module (A3) includes a coding table (A28), and a laser coding component (A29) is provided on the side of the coding table (A28) for marking information including processing time, team number, and production label on the fuel injection ring (100). An upstream of the described rotary positioning module (A2) is provided with a feeding module (A44), the feeding module (A44) includes a feeding conveyor belt (A51), a V-shaped baffle (A45) is provided at the downstream end of the feeding conveyor belt (A51), and at least one group of retaining columns (A46) that can enter or move away from above the feeding conveyor belt (A51) are distributed along the conveying direction on the side of the feeding conveyor belt (A51) for at least separating two fuel injection rings (100) behind the baffle (A45).

4. The fuel injection ring seal assembly line according to claim 1, characterized in that The described radial seal ring assembly mechanism includes a fuel injection ring carrier (B2) slidably connected to the frame (400), and the fuel injection ring carrier (B2) is driven by a carrier translation drive assembly (B28) to move and can move between a receiving station for receiving the fuel injection rings (100) after inspection and an assembly station for assembling the radial seal rings (200) onto the fuel injection rings (100). A seal ring transfer table (E3) and a seal ring stacking module (E1) for vertically sleeving and storing the radial seal rings (200) are further provided on the frame (400), and a seal ring transfer structure (E2) is provided between the seal ring transfer table (E3) and the seal ring stacking module (E1) for removing the uppermost radial seal ring (200) from the seal ring stacking module (E1) and transferring it to the seal ring transfer table (E3). A seal ring transfer structure (B3) is provided between the seal ring transfer table (E3) and the assembly station for picking up the radial seal rings (200) on the seal ring transfer table (E3) and docking with the outside of the upper end of the fuel injection ring (100) with the radial seal rings (200). A seal ring assembly structure (B4) is provided at the assembly station for dialing down the radial seal rings (200) on the seal ring transfer structure (B3) and sleeving the radial seal rings (200) onto the radial seal grooves (103) of the fuel injection ring (100) by pressing down.

5. The fuel injection ring seal assembly line according to claim 1, characterized in that, The described end face seal ring assembly mechanism includes a fuel injection ring carrier (C2) slidably connected to the frame (400), and the fuel injection ring carrier (C2) is driven by a carrier translation drive assembly (C58) to move and can move between a receiving station for receiving the fuel injection rings (100) with the radial seal rings assembled and an assembly station for assembling the end face seal rings (300) onto the fuel injection rings (100). A seal ring transfer table (E3) and a seal ring stacking module (E1) for vertically sleeving and storing the end face seal rings (300) are further provided on the frame (400), and a seal ring transfer structure (E2) is provided between the seal ring transfer table (E3) and the seal ring stacking module (E1) for removing the uppermost end face seal ring (300) from the seal ring stacking module (E1) and transferring it to the seal ring transfer table (E3). A sealing ring transfer structure (C25) is provided between the sealing ring transfer table (E3) and the oil injection ring carrier (C2), for removing the end face sealing ring (300) from the sealing ring transfer table (E3), and after docking with the upper end of the oil injection ring (100) on the assembly station, pushing the end face sealing ring (300) downward into the end face sealing groove (104) at the upper end of the oil injection ring (100).

6. The fuel injection ring seal assembly line according to claim 4 or 5, characterized in that, The sealing ring stacking module (E1) comprises a plurality of vertical rods (E5) surrounding a cylindrical sleeve column (E4), a clearance gap (E6) being formed between adjacent vertical rods (E5), a tray (E7) being vertically slidably arranged between the vertical rods (E5), and a tray pushing assembly (E11) being arranged between the tray (E7) and the frame (400); the sealing ring stacking module (E1) comprises at least two groups circumferentially distributed on a rotating disk (E8), the rotating disk (E8) being rotatably arranged on the frame (400), and a clearance through hole (E9) allowing the tray pushing assembly (E11) to pass through is arranged on the rotating disk (E8) below the tray (E7); The sealing ring stacking module (E1) further comprises an annular base (E28), and the annular base (E28) is detachably fixed on the turntable (E8) via a quick fixing structure (E15); The tray (E7) has a plurality of first clearance grooves (E10) evenly distributed on the circumference thereof to allow the upper supporting material pawls (E21) to extend therein; The sealing ring transfer structure (E2) comprises a ratchet expander (E19), and the ratchet expander (E19) is arranged on the frame (400) through an expander lifting structure and an expander transverse movement structure, and can be laterally translated and vertically lifted and lowered; The ratchet expander (E19) comprises an expander mounting seat (E20) and an upper supporting material ratchet (E21) which is circumferentially distributed on the bottom surface of the expander mounting seat (E20) and extends vertically, and the upper supporting material ratchet (E21) is connected to the upper retractable driving structure; The upper retractable driving structure comprises a first conical truncated cone (E22) arranged between the upper supporting material pawls (E21); the upper supporting material pawls (E21) are slidably connected to the expander mounting seat (E20) via an upper pawl seat; a first roller (E23) is arranged on the side of the upper pawl seat near the first conical truncated cone (E22); the first roller (E23) rolls on the conical surface of the first conical truncated cone (E22); a first elastic component (E24) is arranged between the upper pawl seat and the expander mounting seat (E20) so that the upper pawl seat has a tendency to move toward the first conical truncated cone (E22); the first conical truncated cone (E22) is driven to rise and fall by a first lifting driving component (E25); The described seal ring turntable (E3) includes an annular turntable base (E31) arranged on the frame (400). A number of lower material-supporting pawls (E32) are circumferentially distributed on the top surface of the turntable base (E31). The lower material-supporting pawls (E32) are slidably connected to the turntable base (E31) through lower pawl seats and are driven to move radially by a lower retracting and extending driving structure for expanding and removing the radial seal rings (200) on the seal ring transfer structure (E2). The described lower retracting and extending driving structure includes a second conical frustum (E33) arranged between the lower material-supporting pawls (E32). The lower material-supporting pawls (E32) are slidably connected to the turntable base (E31) through lower pawl seats. A second roller (E34) is provided on the side of the lower pawl seat near the second conical frustum (E33). The second roller (E34) rolls on the conical surface of the second conical frustum (E33). A second elastic component (E35) is provided between the lower pawl seat and the turntable base (E31) to make the lower pawl seat have a tendency to move towards the second conical frustum (E33). The second conical frustum (E33) is driven to move up and down by a second lifting and lowering driving component (E36).

7. The fuel injection ring seal assembly line according to claim 4, characterized in that, The described seal ring transfer structure (B3) includes a docking cylinder (B12) with its lower end exposed and opening downward. A number of vertically extending second relief grooves (B13) are evenly circumferentially distributed at the lower end of the docking cylinder (B12). The docking cylinder (B12) is slidably connected in the docking cylinder connection hole (B14) of the annular assembly base (B30) and can perform a lifting action driven by a docking cylinder lifting and lowering driving component (B29). The described assembly base (B30) is fixed to the bottom of the assembly lifting seat (B15). The assembly lifting seat (B15) can perform lateral movement and vertical lifting actions. The described seal ring assembly structure (B4) includes a separating frame (B16) vertically slidably connected to the frame (400). The separating frame (B16) can perform a vertical lifting action driven by a separating frame lifting and lowering driving component (B19). A separating through hole (B17) allowing the seal ring transfer structure (B3) to pass vertically is provided through the separating frame (B16). At least two separating pieces (B18) are evenly circumferentially distributed outside the separating through hole (B17). The separating pieces (B18) are slidably connected to the separating frame (B16) and can be driven by a separating piece moving in and out driving component (B20) to make the front end extend above the radial seal ring (200) to separate the radial seal ring (200) from the docking cylinder (B12) onto the oil injection ring (100) and press it downwards. A flipping structure (B21) for flipping the oil injection ring (100) with the radial seal ring (200) assembled to facilitate the installation of the end face seal ring at the bottom subsequently is also provided on the frame (400). The described flipping structure (B21) includes a flipping jaw (B24) that can perform vertical lifting and 180-degree rotation along the vertical plane. The flip clamp (B24) comprises two L-shaped claw bodies arranged opposite to each other, the L-shaped claw bodies are connected to the synchronous telescopic drive assembly (B26) and can be retracted to clamp the oil injection ring (100); A detection camera (B5) is also provided on the side of the sealing ring transfer table (E3) for detecting whether the radial sealing ring (200) removed from the sealing ring stacking module (E1) is installed upside down. A reverse loading material basket (B6) is provided on the side of the sealing ring transfer table (E3). The sealing ring transfer structure (E2) also includes a hand expansion longitudinal movement structure for transferring and removing the radial sealing ring (200) to the reverse loading material basket (B6) when it is detected that the radial sealing ring (200) is installed upside down.

8. The fuel injection ring seal assembly line according to claim 5, characterized in that, The sealing ring transfer structure (C25) comprises a transfer base (C3), a ring-shaped transfer cylinder (C4) is provided on the bottom surface of the transfer base (C3), a push ring (C5) is sleeved on the outer side of the transfer cylinder (C4), a push ring lifting structure (C6) is provided between the push ring (C5) and the transfer base (C3), the transfer base (C3) is arranged on the frame through the transfer lifting structure (C7) and the transfer transverse structure (C8), and can be lifted vertically and moved transversely, and a positioning auxiliary structure (C9) is also provided on the radial outer side of the push ring (C5); The positioning auxiliary structure (C9) comprises at least two arc-shaped positioning pieces (C10) which are circumferentially distributed on the transfer base (C3) and can slide radially. The arc-shaped positioning piece (C10) is connected to the radial in-and-out drive assembly (C11). The lower part of the inner side of the arc-shaped positioning piece (C10) is provided with an arc-shaped docking groove (C12). The docking groove (C12) is in contact with the outer wall of the upper end of the injection ring (100). A transfer positioning gap (C13) is formed between the inner wall of the upper end of the arc-shaped positioning piece (C10) and the outer wall of the transfer cylinder (C4) to allow the end face sealing ring (300) and the push ring (C5) to pass through. The bottom surface of the transfer cylinder (C4) is evenly distributed circumferentially with axially extending clearance grooves (C14) with open lower ends; The radial in-and-out drive assembly (C11) is arranged on the transfer base (C3) via the installation extension (C15), and a height detection assembly (C16) is detachably arranged between adjacent installation extensions (C15) for detecting the position of the end face sealing ring (300); The height detection assembly (C16) includes a signal generator and a signal receiver connected through the clearance groove (C14); The frame (400) is also provided with an assembly completion detection structure (C19) and an NG rejection structure (C20) for performing assembly quality control after the end face sealing ring (300) is assembled. The assembly completion detection structure (C19) includes a camera detection component (C21) arranged on the side of the detection station, and the NG rejection structure (C20) includes an NG material output conveyor belt (C22).

9. The fuel injection ring seal assembly line according to claim 1, wherein The visual inspection component (D34) comprises at least one set of inspection cameras (D20) fixed on the frame (400) and facing the visual inspection platform (D3); The described roller base (D38) is slidably arranged on the frame (400) so as to be vertically lifted and lowered; An elastic rough surface is provided on the side wall of the described positioning roller (D21), and its wheel axle is connected to the roller rotation driving assembly and can rotate to drive the oil spraying ring (100) to rotate; Two sets of discharge conveyor belts (D32) are further provided in the downstream direction of the described vision inspection table (D3), with at least one set for outputting NG parts and at least one set for outputting qualified finished products.

Images