Pre-assembly detection mechanism of oil injection ring and sealing ring assembly line

Abstract

The invention belongs to the technical field of oil injection ring and sealing ring assembly, particularly relates to a pre-assembly detection mechanism of an oil injection ring and sealing ring assembly line, and solves the problems of low detection efficiency and low detection accuracy before assembly. The before-assembly detection mechanism of the oil injection ring and sealing ring assembly line comprises a rack, and the rack is provided with a rotary positioning module, a detection module, a detection module and a detection module, and the rotary positioning module is used for rotating an oil injection ring to a preset angle; the code printing and marking module is used for marking processing information on the oil injection ring; the hole through detection module is used for detecting the through condition of a radial through hole in the oil injection ring; the size detection module is used for detecting the outer diameter of the oil injection ring, the width of the sealing groove and the smooth condition of the outer wall; the classified discharging module is used for outputting the NG materials in a classified mode according to specific NG reasons; the transferring assembly is used for transferring the oil injection rings among the modules; and the control computer is used for controlling the modules to act cooperatively. The effect of efficient and accurate detection of the oil injection ring before assembly is achieved, the machining quality is guaranteed, and waste of follow-up assembly cost is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of fuel injection ring sealing ring assembly, and in particular relates to a pre-assembly detection mechanism of a fuel injection ring sealing ring assembly line. Background Art

[0002] With the development of today's society, vigorously promoting new energy projects is the general trend of the automotive industry. The motor oil injection ring is an indispensable part of the motor system of electric vehicles. The oil injection ring is assembled on the outside of both ends of the motor stator, and plays the role of sealing coolant in the radial and axial directions respectively.

[0003] In the current existing technology, there is no mature automated solution for the assembly of the seal ring of the fuel injection ring. Most assembly lines lack automated pre-assembly inspection mechanisms. The inspection of the fuel injection ring still requires a lot of manual participation, the assembly efficiency is low, and the inspection accuracy is difficult to guarantee. As the preliminary preparation work for the subsequent assembly, inadequate inspection can easily cause the subsequent assembly work to be stuck and waste assembly costs. Summary of the invention

[0004] The purpose of the present invention is to address the above-mentioned problems existing in the prior art and to propose a pre-assembly detection mechanism for an oil injection ring sealing ring assembly line.

[0005] In order to achieve the purpose of the invention, the following technical solutions can be used: A pre-assembly detection mechanism for an oil injection ring seal assembly line comprises a frame, wherein the frame is provided with: Rotation positioning module, used to rotate the injection ring to a predetermined angle; Coding and marking module, used to mark processing information on the injection ring; Hole penetration detection module, used to detect the penetration of radial through holes on the injection ring; Dimension detection module, used to detect the outer diameter of the injection ring, the width of the radial sealing groove and the smoothness of the outer wall; The classified discharging module is used to classify and output NG materials according to the specific NG reasons; A transfer assembly, used to transfer the injection ring between modules; The control computer is respectively connected with the rotation positioning module, the coding and marking module, the hole penetration detection module, the size detection module, the classification and discharging module and the transfer component, and is used to control the coordinated actions of each module.

[0006] The pre-assembly detection mechanism of the present invention is used for pre-assembly detection of the oil injection ring sealing ring assembly production line to ensure the qualification of the oil injection ring and ensure that the subsequent assembly is smooth and effective. The oil injection ring is an annular structure with an axially protruding lug on the upper end face, which makes it uneven in the circumferential direction. A circumferentially extending stepped radial sealing groove is provided at the upper end of the oil injection ring for sleeve-type installation of the radial sealing ring. A radially recessed annular end face sealing groove is provided on the bottom surface for installing the end face sealing ring. A plurality of radial through holes are circumferentially distributed on the side. The rotation positioning module in this mechanism is used to rotate the injection ring to a predetermined angle, and can rotate the injection ring to a predetermined state where the lug is located at a corresponding angle, so as to facilitate the subsequent steps to process to the corresponding position; the coding and marking module is used to code and mark the injection ring, and mark information such as processing team and processing time on the injection ring, so as to facilitate subsequent responsibility tracking and problem tracing; the hole penetration detection module is used to check whether the radial through hole on the side of the injection ring is qualified, such as whether it is penetrated and whether the position setting is accurate; the size detection module is used to detect the outer diameter of the injection ring, and is especially used to detect the width and smoothness of the radial sealing groove at the upper end to ensure the smoothness of the sealing ring It is convenient for assembly and to achieve the predetermined sealing effect. After the inspection, the classification and discharging module will remove and output the NG materials, and the materials will be classified and output according to the NG reasons, which is beneficial for quality inspectors to find the distribution of NG problems, timely adjust or check related processing equipment, and quickly adjust the NG materials that can be saved to control costs. The injection ring is transferred in sequence between the modules by the transfer assembly, realizing a pipeline processing flow with a high degree of automation. In addition, the control computer, as the calculation and control center, coordinates and controls the coordinated actions between the modules and the transfer assembly to ensure the orderly and efficient realization of positioning, detection, and classification and output of NG materials.

[0007] In the pre-assembly detection mechanism of the above-mentioned injection ring sealing ring assembly line, the rotation positioning module includes a rotation positioning table arranged on the frame, a positioning station is formed on the top surface of the rotation positioning table, and a plurality of positioning detection components are arranged on the side, the top surface of the rotation positioning table is rotatably connected to a first rotating table surface, and the first rotating table surface is connected to a first rotating drive component; the positioning detection component includes a first laser generator and a first receiver located on both sides of the positioning station and arranged opposite to each other, and the first laser generator and the first receiver are adapted to the height of the lugs at the upper end of the injection ring.

[0008] The rotary positioning table is used to rotate the injection ring to a predetermined angle. The injection ring is placed on the first rotating table above it. The first rotating drive component drives the first rotating table to rotate with the injection ring. The first rotating drive component can be a first driving motor arranged on the frame. The positioning detection component emits a laser from the first laser generator, and the first receiver receives the emitted laser signal. The height of the two is adapted to the height of the lug at the upper end of the injection ring. When the first receiver does not receive the signal, it means that the signal is blocked by the lug, that is, the position of the lug is indicated, so as to realize the detection of the rotation angle of the injection ring. The specific structure and matching details of the first laser generator and the first receiver are common knowledge and will not be elaborated in detail.

[0009] As an optimization, a spare detection camera is also provided on the side of the rotary positioning platform. The spare detection camera is fixed on the frame and aimed at the positioning station, and is used to further assist in confirming whether the positioning is in place through images. The spare detection camera is connected to the control computer.

[0010] The detection camera performs visual inspection by image capture and analysis, which can be used as an auxiliary detection method to improve positioning accuracy.

[0011] In the pre-assembly detection mechanism of the above-mentioned fuel injection ring sealing ring assembly line, the hole penetration detection module includes a hole penetration detection platform arranged on a frame, a penetration detection position is formed on the top surface of the hole penetration detection platform, and multiple groups of arc-shaped mounting blocks can be radially slidably arranged on the hole penetration detection platform, the arc-shaped mounting block is connected to the mounting block telescopic drive assembly, and an air outlet nozzle is provided thereon, the air inlet end of the air outlet nozzle is connected to the high-pressure gas generating assembly, the air outlet end corresponds one-to-one with the radial through hole of the fuel injection ring, the air outlet nozzle is connected to a flow detector, and the flow velocity detector is connected to a control computer.

[0012] The penetration detection position on the hole penetration detection table is used to place the fuel injection ring to be subjected to hole penetration detection. An air outlet nozzle is arranged on the hole penetration detection table through an arc-shaped mounting block. The air outlet nozzle is located on the inner side of the fuel injection ring and radially sprays gas outward. The position of the air outlet end of the air outlet nozzle is adapted to the position of the radial through hole on the fuel injection ring. The mounting block telescopic driving assembly is used to drive the movement of the arc-shaped mounting block so that the air outlet end of the air outlet nozzle is close to the inner side of the fuel injection ring. The flow detector is used to detect the gas flow output by the air outlet nozzle per unit time. The flow data is converted into a diameter through a flow formula, thereby realizing non-destructive detection of radial through holes and eliminating the flash phenomenon of small holes.

[0013] Specifically, the mounting block telescopic drive assembly includes a pneumatic cylinder body arranged at the center of the hole-through detection table. The arc-shaped mounting block 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 gas extraction and discharge assembly of the power chamber is connected to drive the telescopic action of the connecting rod, thereby realizing the radial translation control of the arc-shaped mounting block.

[0014] In the above-mentioned pre-assembly inspection mechanism of the fuel injection ring seal assembly line, the size inspection module includes a rotating inspection table, a size inspection position is formed on the top surface of the rotating inspection table, and at least one set of size inspection components is arranged on the side; The rotating inspection platform comprises an inspection platform base slidably connected to the frame in a vertically lifting manner, and a second rotating table top rotatably connected to the inspection platform base, wherein the second rotating table top is driven to rotate by a second rotating drive assembly, and the inspection platform base is driven to lift by a base lifting drive assembly; The size detection component includes at least one group of camera No. 1 for sending signals and camera No. 2 for receiving signals. The camera No. 1 and camera No. 2 are arranged relatively to each other and aimed at the side of the injection ring, and are used to detect the outer diameter of the injection ring, the groove width of the radial sealing groove, and whether the outer wall is smooth.

[0015] The size detection position on the rotating inspection table is used to place the oil injection ring to be inspected for size. The inspection table base of the rotating inspection table can be raised and lowered vertically, and the second rotating table surface on the base can rotate circumferentially, so that the size detection component can perform all-round inspection of different height positions and 360-degree circumferential positions of the oil injection ring. The inspection is comprehensive. The size detection component is specifically implemented by camera No. 1 and camera No. 2. Camera No. 1 and camera No. 2 are arranged relative to each other, and corresponding items are detected for the oil injection ring between them. The detection principle is common knowledge and will not be elaborated in detail.

[0016] Specifically, the second rotating drive assembly includes a second driving motor arranged on the detection table base and connected to the second rotating table surface, and the base lifting drive assembly includes a detection table lifting cylinder vertically arranged on the frame and the output end of which is connected to the detection table base.

[0017] In the pre-assembly inspection mechanism of the above-mentioned injection ring sealing ring assembly line, the classification discharging module includes a discharging turntable, a transfer position is formed on the discharging turntable, at least two groups of NG material output conveyor belts are vertically distributed on one side of the transfer position, an NG part top block is slidably connected to the discharging turntable, a pushing assembly is provided between the NG part top block and the discharging turntable, and a discharging lifting drive assembly is provided between the discharging turntable and the frame.

[0018] The transfer position on the discharging transfer table is used to temporarily store the injection rings that have completed coding and testing, which is convenient for the transfer of different transfer components. Multiple groups of NG material output conveyor belts are arranged on the side of the discharging transfer table. The discharging lifting drive component can control the lifting action of the discharging transfer table, so that the transfer position and the upstream ends of different NG material output conveyor belts are connected at the same height. According to different NG reasons, the NG piece top block can be pushed onto the conveyor belt after the transfer position corresponds to the corresponding NG material output conveyor belt to realize the removal of NG pieces. For qualified products, they are transferred to subsequent workstations by the transfer component.

[0019] Specifically, the push assembly includes an NG piece push cylinder disposed on the discharge transfer table, the NG piece push cylinder is located on the opposite side of the NG material output conveyor belt, the output end of the NG piece push cylinder is connected to the NG piece push block for pushing the NG material to the NG material output conveyor belt. The discharge lifting drive assembly includes a discharge table lifting cylinder, the output end of the discharge table lifting cylinder is connected to the discharge transfer table, and is used to lift the discharge transfer table to be flush with one of the NG material output conveyor belts.

[0020] As a parallel solution, the classification discharging module includes a classification output conveyor belt arranged on the frame, and a discharging transfer position is provided in the middle of the classification output conveyor belt. The classification output conveyor belt can rotate forward or reverse to classify and output NG materials from both ends.

[0021] The classification discharging module can also be realized by a set of classification output conveyor belts. The discharging transfer position is located in the middle of the conveyor belt. The forward and reverse rotation of the conveyor belt can achieve the effect of removing NG parts from one end. The two ends can correspond to the NG reasons of both ends. The structure is simplified and the function of classification discharging is guaranteed. The specific structure and forward and reverse control principle of the classification output conveyor belt are common knowledge and will not be elaborated in detail.

[0022] In the pre-assembly inspection mechanism of the above-mentioned fuel injection ring sealing ring assembly line, the coding and marking module includes a coding table, a coding mark position is formed on the top surface of the coding table, and a laser coding component is provided on the side. The laser coding component is aligned with the coding mark position and is used to mark information including processing time, team number, and production number on the fuel injection ring. An annular inner positioning block is provided on the coding mark position.

[0023] The coding mark on the coding table is used to place the injection ring that has been positioned to be coded. The inner positioning block of the ring is used to locate the injection ring to ensure that the coding is at the predetermined position. The laser coding component is used to mark the information by laser engraving. The relevant information can be integrated into the QR code to increase the information capacity and marked on the side wall surface of the injection ring without affecting the structure of the sealing ring groove.

[0024] As an optimization, the inner positioning block is fixed to the top surface of the coding table by bolts, the outer diameter of the inner positioning block is adapted to the inner diameter of the injection ring, and a positioning groove is provided on its outer periphery, the number and distribution of the positioning grooves are adapted to the axial reinforcement ribs on the inner ring of the injection ring, and an easy-entry guide surface is provided at the upper end of the positioning groove.

[0025] The inner locating block is fixed by bolts and has flexible detachability. The corresponding inner locating block can be replaced according to the specific model of the fuel injection ring. A radially concave locating groove is provided on the outer side of the inner locating block. The axial reinforcement rib of the inner ring of the fuel injection ring is inserted for positioning. The easy-entry guide surface at the upper end is in the form of an inclined surface or an arc surface, which is conducive to the insertion of the axial reinforcement rib.

[0026] In the pre-assembly inspection mechanism of the above-mentioned injection ring sealing ring assembly line, the transfer assembly includes a horizontal slide rail arranged on the frame, and an installation slide slidably connected to the horizontal slide rail, a sliding drive assembly is provided between the installation slide and the horizontal slide rail, and a claw hand assembly is provided on the installation slide through a claw hand lifting structure, and the claw hand assembly includes an inward expansion type support hand or a clamping type gripper.

[0027] The transfer assembly consists of a claw hand assembly that specifically grabs the oil injection ring. The claw hand assembly can be an internal expansion type support hand or a clamping type gripper, which can be selected according to the relevant structures on the specific workstation to be transferred and placed to ensure smooth transfer. The claw hand assembly is arranged on the installation slide through the claw hand lifting structure and can be vertically lifted and lowered to be used for descending to grab or put down the oil injection ring, and rising to lift the oil injection ring to ensure smooth lateral movement. The installation slide can be laterally slidably arranged on the frame through a horizontal slide rail. The sliding drive assembly is used to provide a sliding drive force for the installation slide. The sliding drive assembly can specifically include a linear motor module arranged parallel to the horizontal slide rail, and the installation slide is connected to the linear motor module.

[0028] In the above-mentioned pre-assembly inspection mechanism of the fuel injection ring seal assembly line, the horizontal slide rail includes a first slide rail arranged between the feeding module and the coding and marking module, the installation slide includes a first slide slidably connected to the first slide rail, and the first slide is provided with two sets of inward expansion type support hands, the inward expansion type support hands are distributed along the transfer direction, and the spacing is adapted to the spacing between the feeding module, the rotation positioning module and the coding and marking module; The horizontal slide rail further comprises a second slide rail disposed between the coding and marking module and the hole penetration detection module, the installation slide comprises a second slide slidably connected to the second slide rail, and a group of clamping grippers are disposed on the second slide; The horizontal slide rail also includes a third slide rail arranged between the hole penetration detection module and the classification and discharging module. The installation slide includes a third slide slidably connected to the third slide rail. The third slide is provided with two groups of inward-expanding supports. The inward-expanding supports are distributed along the transfer direction, and the spacing between them is adapted to the spacing between the hole penetration detection module, the size detection module and the classification and discharging module.

[0029] The gripper assembly for transferring between the feeding module and the coding and marking module uses an internal expansion type support to avoid interference with related structures such as the loading position of the feeding module that limit the injection ring from the outside. The gripper assembly between the coding and marking module and the hole penetration detection module uses a clamping type gripper to avoid interference with the air outlet nozzle on the inside of the injection ring at the penetration detection position. The gripper assembly between the hole penetration detection module and the classification discharge module uses an internal expansion type support to avoid interference with the structure that limits the injection ring from the outside at the transfer position. Two groups are set up to simultaneously transfer two injection rings on two adjacent workstations, thereby improving the transfer efficiency. In addition, the transfer between these modules is achieved through multiple sets of slide rail sliders, which are independent and avoid the need for an excessively long slide rail to correspond to an excessively long drive stroke of the driver, making the setting more flexible.

[0030] In the pre-assembly inspection mechanism of the injection ring seal assembly line, the inner expansion type supporter comprises a supporter mounting platform fixed on the bottom surface of the mounting slide, and at least three groups of support rods evenly distributed circumferentially on the supporter mounting platform and radially retractable, a support rod retractable driving assembly is provided between the supporter mounting platform and the support rod, and an elastic cushion layer is provided at the outer end of the support rod; The clamping gripper comprises a clamping jaw mounting platform fixed on the bottom surface of the mounting slide, and at least three groups of L-shaped clamping jaws evenly distributed on the clamping jaw mounting platform and capable of radial sliding. A clamping jaw telescopic drive assembly is provided between the clamping jaw mounting platform and the L-shaped clamping jaw, and an elastic cushion layer is provided on the inner side of the vertical action section of the L-shaped clamping jaw.

[0031] The main part of the internal expansion type support arm is the support arm mounting platform, on which multiple groups of support rods are radially arranged. The support rod telescopic drive assembly is used for the extension and retraction of the support rod. When extended, the elastic cushion layer at the outer end of the support rod is specifically attached to the inner wall of the injection ring to achieve internal expansion type expansion and fixation. The elastic cushion layer can be supported by rubber and other materials to avoid damage to the injection ring. The structure of the clamping gripper is similar, the difference is that the radially retractable L-shaped clamping jaw has a vertical action section pointing vertically downward, which is used to press on the injection ring from the outside to achieve clamping type grasping and fixation. The inner side is provided with an elastic cushion layer, which also has a protective effect.

[0032] Specifically, the support rod telescopic drive assembly and the clamping jaw telescopic drive assembly both include a pneumatic structure, and the pneumatic structure includes a power chamber arranged between the support arm mounting platform and the inner end of the support rod, or between the clamping jaw mounting platform and the inner end of the L-shaped clamping jaw, and the power chamber is connected to the high-pressure gas generating assembly through an air duct.

[0033] As an optimization, the top surfaces of the rotary positioning table, hole penetration detection table, size detection table and coding table are all provided with an annular external positioning protrusion adapted to the outer diameter of the oil injection ring. The oil injection ring is positioned in the external positioning protrusion to ensure the accurate implementation of related detection and other operations.

[0034] In the pre-assembly inspection mechanism of the above-mentioned injection ring sealing assembly line, a loading module is provided upstream of the rotation positioning module, and the loading module includes a loading conveyor belt. A V-shaped material blocking plate is provided at the downstream end of the loading conveyor belt, and a loading waiting position is formed in the material blocking plate. At least one group of material blocking columns are distributed along the conveying direction on the side of the loading conveyor belt. The material blocking columns are arranged on the frame through a material blocking telescopic assembly, and can be extended to the top of the loading conveyor belt to at least separate the loading waiting position and the injection ring in the upstream direction. An idle detection assembly is provided on the side of the loading waiting position for detecting whether it is idle.

[0035] The loading module is located at the front end of the assembly line and is used to input the injection ring to be processed. The injection ring is mainly input by the loading conveyor belt, and the injection ring is transmitted to the downstream end. The V-shaped baffle at the downstream end blocks the injection ring at the loading waiting position here for the transfer component to grab. Since the injection rings are arranged along the transmission direction of the conveyor belt, in order to at least separate the injection rings on the loading waiting position, a blocking column is provided on the frame, and the blocking column can be extended after the frontmost injection ring passes to block the injection ring at the rear from getting close, so as to ensure that the injection ring at the loading waiting position is smoothly taken away. The idle detection component is used to detect whether the loading waiting position is idle, that is, whether the injection ring therein is taken away. When it is idle, the blocking column can be controlled to retract to release the injection ring at the rear to enter the loading waiting position. The degree of automation is high. Moreover, when the existence of the injection ring at the loading waiting position is detected, the loading conveyor belt can be set to stop rotating in time to reduce unnecessary friction between the conveyor belt surface and the bottom surface of the injection ring, thereby reducing wear.

[0036] Specifically, the material blocking telescopic assembly includes a material blocking telescopic cylinder horizontally arranged on the frame and perpendicular to the feeding conveyor belt, and the output end of the material blocking telescopic cylinder is rotatably connected to a material blocking column extending downward, and the outer wall of the material blocking column is coated with an elastic layer to avoid damaging the injection ring. The idle detection assembly includes a second laser generator and a second receiver arranged on both sides of the material loading position, the second laser generator and the second receiver are arranged oppositely, and the connecting line passes through the injection ring on the material loading position, and whether the second receiver receives the laser signal determines whether there is an injection ring in the material loading position, and the detection effect is accurate.

[0037] As an optimization, the material blocking column is provided with two groups, which are respectively located between three adjacent injection rings on the upstream side of the material blocking plate. The three injection rings at the front can be separated to ensure that the first injection ring is removed smoothly and the second injection ring enters the loading and removal position smoothly.

[0038] Compared with the prior art, the present invention mainly has the following advantages: 1. The rotation positioning module of the pre-assembly inspection mechanism is used to rotate the injection ring to a predetermined angle, so that it can be processed to the corresponding position in the subsequent steps; the coding and marking module is used to mark the injection ring, which is convenient for subsequent responsibility tracking and problem tracing; the hole penetration detection module is used to check whether the radial through hole on the side of the injection ring is qualified; the size detection module is used to detect the outer diameter of the injection ring and the width and smoothness of the radial sealing groove to ensure the smooth assembly of the sealing ring and achieve the predetermined sealing effect; after the inspection, the classification and discharge module classifies the NG materials according to the NG reasons and outputs them separately, which is conducive to quality inspectors to find the distribution of NG problems, timely adjust or check related processing equipment, and quickly adjust the NG materials that can be saved to control costs; the injection ring is transferred in sequence between the modules by the transfer assembly, realizing a pipeline processing flow with a high degree of automation.

[0039] 2. The position of the outlet end of the air outlet nozzle on the hole penetration test bench is adapted to the position of the radial through hole on the fuel injection ring. The telescopic drive assembly of the mounting block is used to drive the movement of the arc-shaped mounting block so that the outlet end of the air outlet nozzle is close to the inner side of the fuel injection ring. The flow detector is used to detect the gas flow output by the air outlet nozzle per unit time. The flow data is converted into a diameter through a flow formula to achieve non-destructive testing of the radial through hole and eliminate the flash phenomenon of small holes.

[0040] 3. The base of the rotating inspection table can be raised and lowered vertically, and the second rotating table on the base can rotate circumferentially, so that the size detection component can perform all-round detection of different height positions of the injection ring and 360-degree circumferential positions, and the detection is comprehensive.

[0041] 4. There are multiple groups of NG material output conveyor belts on the side of the discharging transfer table. According to different NG reasons, the NG parts can be pushed onto the conveyor belt by the NG piece ejector block after the transfer position is aligned with the corresponding NG material output conveyor belt to realize the removal of NG parts.

[0042] 5. The claw hand assembly of the transfer assembly can be an internal expansion type support hand or a clamping type gripper, which can be selected according to the relevant structures on the specific workstation to be transferred and placed to ensure the smooth implementation of the transfer.

[0043] 6. The V-shaped baffle at the downstream end of the feeding conveyor belt blocks the oil injection ring at the loading waiting position for grabbing by the transfer component. The blocking column can extend after the front oil injection ring passes to block the rear oil injection ring from getting close, ensuring that the oil injection ring at the loading waiting position is smoothly removed. The idle detection component is used to detect whether the loading waiting position is idle. When it is idle, the blocking column can be controlled to retract to release the rear oil injection ring into the loading waiting position, with a high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of the arrangement of the feeding module, the rotation positioning module and the coding and marking module provided by the present invention; Figure 2 It is a schematic diagram of the arrangement of the hole penetration detection module, the size detection module and the classification and discharging module provided by the present invention; Figure 3 It is a structural schematic diagram of a feeding module provided by the present invention; Figure 4 It is a structural schematic diagram of the rotation positioning module provided by the present invention; Figure 5 It is a structural schematic diagram of the coding and marking module provided by the present invention; Figure 6 It is a structural schematic diagram of a hole penetration detection module provided by the present invention; Figure 7 It is a structural schematic diagram of a size detection module provided by the present invention; Figure 8 is a structural schematic diagram of the classification discharging module provided by the present invention (Example 1); Fig. 9 It is a structural schematic diagram of a transfer assembly between a loading module and a coding and marking module provided by the present invention; Fig.10 It is a structural schematic diagram of a transfer assembly between a hole penetration detection module and a classification and discharging module provided by the present invention; Fig.11 It is a structural schematic diagram of the oil injection ring provided by the present invention.

[0045] In the figure: rotation positioning module A2, coding and marking module A3, hole penetration detection module A4, size detection module A5, classification and discharge module A6, transfer assembly A7, rotation positioning platform A8, positioning detection assembly A9, first rotating table A10, first rotating drive assembly A11, spare detection camera A12, hole penetration detection platform A13, arc-shaped mounting block A14, mounting block telescopic drive assembly A15, air outlet nozzle A16, rotation detection platform A17, detection platform base A18, second rotating table A19, second rotating drive assembly A20, base lifting drive assembly A21, size detection assembly A22, discharge transfer table A23, NG material output sensor Belt conveyor A24, NG piece ejector A25, ejector assembly A26, lifting structure A27, coding table A28, laser coding assembly A29, inner positioning block A30, claw assembly A31, clamping gripper A32, inner expansion supporter A33, sliding drive assembly A34, first slide rail A35, first slide A36, second slide rail A37, second slide A38, third slide rail A39, third slide A40, support rod A41, L-shaped clamp A42, elastic cushion A43, feeding module A44, material blocking plate A45, material blocking column A46, material blocking telescopic assembly A47, idle detection assembly A48, claw lifting structure A49, feeding conveyor belt A50, Oil injection ring 100 , lug 101 , radial through hole 102 , radial sealing groove 103 , end face sealing groove 104 , frame 400 . DETAILED DESCRIPTION

[0046] 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.

[0047] 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 products are installed on the outside of the two ends of the motor stator, and play the role of sealing 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 pieces, 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. The pre-assembly detection mechanism mainly involved in the present invention is a part of the fuel injection ring sealing ring assembly line.

[0048] Example 1 Specific implementation examples Figure 1-11 As shown, the pre-assembly detection mechanism of the fuel injection ring seal assembly line includes a frame 400, on which are provided: The rotation positioning module A2 is used to rotate the fuel injection ring 100 to a predetermined angle; The coding and marking module A3 is used to mark the processing information on the fuel injection ring 100; The hole penetration detection module A4 is used to detect the penetration of the radial through hole 102 on the injection ring 100; The dimension detection module A5 is used to detect the outer diameter of the injection ring 100, the width of the radial sealing groove 103 and the smoothness of the outer wall; Classification and discharging module A6 is used to classify and output NG materials according to specific NG reasons; A transfer assembly A7, used for transferring the fuel injection ring 100 between modules; The control computer is respectively connected to the rotation positioning module A2, the coding and marking module A3, the hole penetration detection module A4, the size detection module A5, the classification and discharge module A6 and the transfer component A7, and is used to control the coordinated actions of each module.

[0049] Specifically, the pre-assembly detection mechanism is used for pre-assembly detection of the injection ring 100 sealing ring assembly production line to ensure the qualification of the injection ring 100 and ensure smooth and effective subsequent assembly. The injection ring 100 is an annular structure with an axially protruding lug 101 on the upper end face, making it uneven in the circumferential direction. A circumferentially extending stepped radial sealing groove 103 is provided at the upper end of the injection ring 100 for sleeve-type installation of the radial sealing ring. A radially recessed annular end face sealing groove 104 is provided on the bottom face for installing the end face sealing ring. A plurality of radial through holes 102 are circumferentially distributed on the side. The rotation positioning module A2 in this mechanism is used to rotate the injection ring 100 to a predetermined angle, and can rotate the injection ring 100 to a predetermined state where the lug 101 is located at a corresponding angle, so as to facilitate the subsequent steps to process to the corresponding position; the coding and marking module A3 is used to code and mark the injection ring 100, and mark information such as the processing team and processing time on the injection ring 100, so as to facilitate the subsequent responsibility tracking and problem tracing; the hole penetration detection module A4 is used to check whether the radial through hole 102 on the side of the injection ring 100 is qualified, such as whether it is penetrated and whether the position setting is accurate; the size detection module A5 is used to detect the outer diameter of the injection ring 100, and is particularly used to detect the width of the radial sealing groove 103 at the upper end. and smoothness to ensure the smooth assembly of the sealing ring and the predetermined sealing effect; after the inspection, the classification and discharge module A6 will remove and output the NG materials, and the removed materials will be classified and output separately according to the NG reasons, which is beneficial for quality inspectors to find the distribution of NG problems, help to adjust or check related processing equipment in time, and also help to quickly adjust the NG materials that can be saved to control costs; the injection ring 100 is transferred in sequence between the modules by the transfer component A7, realizing a pipeline processing flow with a high degree of automation; in addition, the control computer, as the calculation and control center, coordinates and controls the cooperation between the modules and the transfer component A7 to ensure the orderly and efficient realization of positioning, detection, and classification and output of NG materials.

[0050] like Figure 4 As shown, the rotary positioning module A2 includes a rotary positioning platform A8 disposed on the frame 400, a positioning station is formed on the top surface of the rotary positioning platform A8, and a plurality of positioning detection components A9 are disposed on the side. The top surface of the rotary positioning platform A8 is rotatably connected to a first rotary table surface A10, and the first rotary table surface A10 is connected to a first rotary drive component A11; the positioning detection component A9 includes a first laser generator and a first receiver located on both sides of the positioning station and 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 injection ring 100. A spare detection camera A12 is also disposed on the side of the rotary positioning platform A8, and the spare detection camera A12 is fixed on the frame 400 and aligned with the positioning station, and is used to further assist in confirming whether the positioning is in place through images, and the spare detection camera A12 is connected to the control computer.

[0051] Specifically, the rotary positioning platform A8 is used to rotate the injection ring 100 to a predetermined angle. The injection ring 100 is placed on the first rotating table A10 above it. The first rotating drive component A11 drives the first rotating table A10 to rotate with the injection ring 100. The first rotating drive component A11 can be a first driving motor arranged on the frame 400. The positioning detection component A9 emits a laser from the first laser generator, and the first receiver receives the emitted laser signal. The height of the two is adapted to the height of the lug 101 at the upper end of the injection ring 100. When the first receiver does not receive a signal, it means that the signal is blocked by the lug 101, that is, it indicates the position of the lug 101, and realizes the detection of the rotation angle of the injection ring 100. The detection camera performs visual detection by image capture and analysis, which can be used as an auxiliary detection method to improve the accuracy of positioning.

[0052] like Figure 6 As shown, the hole penetration detection module A4 includes a hole penetration detection platform A13 arranged on the frame 400, and a penetration detection position is formed on the top surface of the hole penetration detection platform A13. A plurality of groups of arc-shaped mounting blocks A14 can be radially slidably arranged on the hole penetration detection platform A13. The arc-shaped mounting blocks A14 are connected to the mounting block telescopic driving assembly A15, and are provided with an air outlet nozzle A16. 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 one-to-one with the radial through hole 102 of the injection ring 100. The air outlet nozzle A16 is connected to a flow detector, and the flow velocity detector is connected to a control computer.

[0053] 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. An air outlet nozzle A16 is provided on the hole penetration detection table A13 through an arc-shaped mounting block A14. The air outlet nozzle A16 is located on the inner side of the fuel injection ring 100 and radially sprays gas outward. The position of the air outlet end of the air outlet nozzle A16 is adapted to the position of the radial through hole 102 on the fuel injection ring 100. The mounting block telescopic driving assembly A15 is used to drive the movement of the arc-shaped mounting block A14 so that the air outlet end of the air outlet nozzle A16 is close to the inner side 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 a flow formula, thereby realizing non-destructive detection of the radial through hole 102 and eliminating the flash phenomenon of small holes.

[0054] In this embodiment, the mounting block telescopic drive assembly A15 includes a pneumatic cylinder body arranged at the center of the hole penetration detection platform A13, and 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 gas extraction and discharge assembly of the power chamber is connected to drive the telescopic action of the connecting rod, thereby realizing the radial translation control of the arc-shaped mounting block A14.

[0055] like Figure 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] Specifically, the transfer position on the discharging transfer table A23 is used to temporarily store the injection ring 100 that has completed coding and testing, which is convenient for the transfer of different transfer components A7. A plurality of 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 and the upstream ends of different NG material output conveyor belts A24 are connected at the same height. According to different NG reasons, the NG piece top block A25 can push the NG piece onto the conveyor belt after the transfer position corresponds to the corresponding NG material output conveyor belt A24, so as to realize the removal of NG pieces. For qualified products, they are transferred to the subsequent workstation by the transfer component A7.

[0060] In this embodiment, the push assembly A26 includes an NG piece push cylinder disposed on the discharge transfer table A23, the NG piece push cylinder is located on the opposite side of the NG material output conveyor belt A24, and the output end of the NG piece push cylinder is connected to the NG piece push block A25 for pushing the NG material to the NG material output conveyor belt A24. The discharge lifting drive assembly A27 includes a discharge table lifting cylinder, the output end of which is connected to the discharge transfer table A23, for lifting the discharge transfer table A23 to be flush with one of the NG material output conveyor belts A24.

[0061] like Figure 5As shown, the coding and marking module A3 includes a coding platform A28, a coding mark position is formed on the top surface of the coding platform A28, and a laser coding component A29 is provided on the side. The laser coding component A29 is aligned with the coding mark position and is used to mark information including processing time, team number, etc. on the injection ring 100. The information is integrated into the two-dimensional code to improve the information capacity. A ring-shaped inner positioning block A30 is provided on the coding mark position. The inner positioning block A30 is fixed to the top surface of the coding platform A28 by bolts. The outer diameter of the inner positioning block A30 is adapted to the inner diameter of the injection ring 100, and a positioning groove is provided on its outer periphery. The number and distribution of the positioning grooves are adapted to the axial reinforcement ribs on the inner ring of the injection ring 100, and an easy-entry guide surface is provided at the upper end of the positioning groove.

[0062] Specifically, the coding mark position on the coding table A28 is used to place the injection ring 100 that has been positioned and is to be coded. The annular inner positioning block A30 is used to position the injection ring 100 to ensure that the coding is at the predetermined position. The laser coding assembly A29 is used to mark the information by laser engraving on the side wall surface of the injection ring 100 without affecting the structure of the sealing ring groove, etc. 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 injection ring 100. The outer side of the inner positioning block A30 is provided with a radially concave positioning groove, which is used for the axial reinforcement rib of the inner ring of the injection ring 100 to be inserted for positioning. The easy-entry guide surface at the upper end is in the form of an inclined surface or an arc surface, which is helpful for the insertion of the axial reinforcement rib.

[0063] like Figure 1 , 2 As shown in Figures 9 and 10, the transfer assembly A7 includes a horizontal slide rail arranged on the frame 400, and a mounting slide slidably connected to the horizontal slide rail, a sliding drive assembly A34 is provided between the mounting slide and the horizontal slide rail, and a claw hand assembly A31 is provided on the mounting slide through a claw hand lifting structure A49, and the claw hand assembly A31 includes an internal expansion type support hand A33 or a clamping type gripper A32. The horizontal slide rail includes a first slide rail A35 arranged between the feeding module A44 and the coding and marking module A3, and the installation slide includes a first slide rail A36 slidably connected to the first slide rail A35, and the first slide A36 is provided with two groups of internal expansion type support hands A33; the horizontal slide rail also includes a second slide rail A37 arranged between the coding and marking module A3 and the hole penetration detection module A4, and the installation slide includes a second slide rail A38 slidably connected to the second slide rail A37, and the second slide A38 is provided with a group of clamping type grippers A32; the horizontal slide rail also includes a third slide rail A39 arranged between the hole penetration detection module A4 and the classification and discharging module A6, and the installation slide includes a third slide rail A40 slidably connected to the third slide rail A39, and the third slide A40 is provided with two groups of internal expansion type support hands A33.

[0064] Specifically, the transfer component A7 is composed of a gripper component A31 that specifically grabs the injection ring 100. The gripper component A31 can be an internal expansion type support hand A33 or a clamping type gripper A32, which can be selected according to the relevant structures on the specific workstation to be transferred and placed to ensure the smooth realization of the transfer. The gripper component A31 is set on the installation slide through the gripper lifting structure A49 and can move vertically. It is used to descend to grab or put down the injection ring 100, and to rise to lift the injection ring 100 to ensure smooth lateral movement. The installation slide can be laterally slidably set on the frame 400 through a horizontal slide rail. The sliding drive component A34 is used to provide a sliding drive force for the installation slide. The sliding drive component A34 can specifically include a linear motor module set parallel to the horizontal slide rail, and the installation slide is connected to the linear motor module. The gripper assembly A31 for transferring between the feeding module A44 and the coding and marking module A3 selects the inner expansion type support hand A33, which can avoid interference with related structures that limit the injection ring 100 from the outside at the feeding position of the feeding module A44. The gripper assembly A31 between the coding and marking module A3 and the hole penetration detection module A4 selects the clamping type gripper A32, which can avoid interference with the air outlet nozzle A16 on the inner side of the injection ring 100 at the penetration detection position. The gripper assembly A31 between the hole penetration detection module A4 and the classification discharge module A6 selects the inner expansion type support hand A33, which can avoid interference with the structure that limits the injection ring 100 from the outside at the transfer position. In addition, the transfer between these modules is realized through multiple sets of slide rails and sliders, which are independent and avoid the need for an excessively long slide rail to correspond to an excessively long driving stroke of the driver, making the setting more flexible.

[0065] like Fig. 9 , 10 As shown, the inward-expanding support arm A33 includes a support arm mounting platform fixed on the bottom surface of the mounting slide, and 4 groups of support rods A41 which are evenly distributed on the support arm mounting platform and can be radially extended and retracted, a support rod extension drive assembly is provided between the support arm mounting platform 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 clamping jaw mounting platform fixed on the bottom surface of the mounting slide, and 4 groups of L-shaped clamping jaws A42 which are evenly distributed on the clamping jaw mounting platform and can be radially slid, a clamping jaw extension drive assembly is provided between the clamping jaw mounting platform and the L-shaped clamping jaw A42, and an elastic cushion layer A43 is provided on the inner side of the vertical action section of the L-shaped clamping jaw A42.

[0066] Specifically, the main part of the internal expansion type support arm A33 is a support arm mounting platform, on which multiple groups of support rods A41 are radially arranged. The support rod telescopic drive assembly is used for the extension and retraction 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 wall of the injection ring 100 to achieve internal expansion type expansion and fixation. The elastic cushion layer A43 can be supported by rubber and other materials to avoid damage to the injection ring 100. The structure of the clamping type gripper A32 is similar, the difference is that the radially retractable L-shaped clamping claw A42 has a vertical action section pointing vertically downward, which is used to press on the injection ring 100 from the outside to achieve clamping type grasping and fixation. The inner side is provided with an elastic cushion layer A43, which also has a protective effect.

[0067] In this embodiment, the support rod telescopic drive assembly and the clamping jaw telescopic drive assembly both include a pneumatic structure, which includes a power chamber arranged between the support arm mounting platform and the inner end of the support rod A41, or between the clamping jaw mounting platform and the inner end of the L-shaped clamping jaw A42, and the power chamber is connected to the high-pressure gas generating assembly through an air duct.

[0068] As an optimization of this embodiment, the top surfaces of the rotation positioning table A8, the hole penetration detection table A13, the size detection table and the coding table A28 are all provided with an annular external positioning protrusion adapted to the outer diameter of the injection ring 100. The injection ring 100 is positioned in the external positioning protrusion to ensure the accurate implementation of related detection operations.

[0069] like Figure 1 , 3 As shown, a feeding module A44 is provided upstream of the rotation positioning module A2, and the feeding module A44 includes a feeding conveyor belt A50, and a V-shaped material blocking plate A45 is provided at the downstream end of the feeding conveyor belt A50, and a feeding waiting position is formed in the material blocking plate A45. At least one group of material blocking columns A46 are distributed on the side of the feeding conveyor belt A50 along the conveying direction, and the material blocking columns A46 are provided on the frame 400 through a material blocking telescopic component A47, and can be extended to the top of the feeding conveyor belt A50 to at least separate the feeding waiting position and the injection ring 100 in the upstream direction, and an idle detection component A48 for detecting whether the feeding waiting position is idle is provided on the side of the feeding waiting position. The material blocking telescopic component A47 includes a material blocking telescopic cylinder horizontally arranged on the frame 400 and perpendicular to the feeding conveyor belt A50, and a material blocking column A46 extending downward is rotatably connected to the output end of the material blocking telescopic cylinder, and the outer wall of the material blocking column A46 is coated with an elastic layer to avoid damaging the injection ring 100. The idle detection assembly A48 includes a second laser generator and a second receiver disposed on both sides of the loading and unloading position. Two groups of material blocking columns A46 are provided, each located between three adjacent injection rings 100 on the upstream side of the material blocking plate A45.

[0070] Specifically, the loading module A44 is located at the front end of the assembly line, and is used to input the injection ring 100 to be processed. It is mainly transmitted and input by the loading conveyor belt A50. The injection ring 100 is transmitted to the downstream end. The V-shaped baffle at the downstream end blocks the injection ring 100 at the loading waiting position here for the transfer component A7 to grab. Since the injection ring 100 is arranged along the transmission direction of the conveyor belt, in order to at least separate the injection ring 100 at the loading waiting position, a blocking column A46 is provided on the frame 400. The blocking column A46 can be extended after the frontmost injection ring 100 passes through. The fuel injection ring 100 at the rear is blocked from approaching, ensuring that the fuel injection ring 100 at the loading position is removed smoothly. The idle detection component A48 is used to detect whether the loading position is idle, that is, whether the fuel injection ring 100 therein is removed. When it is idle, the blocking column A46 can be controlled to retract to release the fuel injection ring 100 at the rear to enter the loading position. The degree of automation is high. Moreover, when the fuel injection ring 100 is detected on the loading position, the loading conveyor belt A50 can be set to stop rotating in time to reduce unnecessary friction between the conveyor belt surface and the bottom surface of the fuel injection ring 100 and reduce wear. The second laser generator and the second receiver are arranged relative to each other, and the connecting line passes through the fuel injection ring 100 at the loading position. Whether the fuel injection ring 100 is present in the loading position is determined by whether the second receiver receives the laser signal, and the detection effect is accurate. The two sets of material blocking columns A46 can separate the three frontmost fuel injection rings 100, ensuring that the first fuel injection ring 100 is removed smoothly and that the second fuel injection ring 100 enters the loading and removal position smoothly.

[0071] Specific working principle: the fuel injection ring 100 to be processed is placed on the downstream side of the feeding conveyor belt A50, and the fuel injection ring 100 is conveyed forward by the feeding conveyor belt A50. The first fuel injection ring 100 in the front enters the feeding waiting position, and the rear blocking column A46 extends to separate the second fuel injection ring 100. Then the transfer component 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 first laser generator and the first receiver detect the angle information. After it is in place, it stops rotating; then the transfer component A7 transfers the fuel injection ring 100 to the coding mark position on the coding table A28, and the laser coding component A29 marks the traceability QR code at the corresponding position on the outer wall of the fuel injection ring 100; then the transfer component A7 transfers the fuel injection ring 100 to the through detection position on the hole through detection table A13, and the gas outlet nozzle A16 outputs gas, which is detected by the flow detector The flow rate per unit time is measured, and the data is transmitted to the control computer, which converts it into the diameter of the hole; then the transfer component A7 transfers the injection ring 100 to the size detection position of the rotating detection table A17, the second rotating table A19 rotates, and the detection table base A18 rises and falls at intervals, and two groups of cameras No. 1 and No. 2 detect the injection ring 100, and send the detection data to the control computer; then the transfer component A7 transfers the injection ring 100 to the transfer position of the discharge transfer table A23, and according to the relevant data sent, the control computer calculates and analyzes whether the injection ring 100 is qualified. If the result is judged to be an NG part, the discharge transfer table A23 is raised and lowered to the corresponding height and flush with the corresponding classification output conveyor belt, and the NG part top block A25 pushes the injection ring 100 to the upstream end of the conveyor belt. If the result is judged to be a qualified part, it waits for the transfer mechanism of the subsequent assembly mechanism to grab it.

[0072] Example 2 The specific working principle of this embodiment is basically the same as that of embodiment 1. The difference is that the classification discharge module A6 In this embodiment, the classification and discharging module A6 includes a classification and output conveyor belt arranged on the frame 400, and a discharging transfer position is provided in the middle of the classification and output conveyor belt. The classification and output conveyor belt can rotate forward or reverse to classify and output NG materials from both ends.

[0073] Specifically, the classification discharging module A6 can also be realized by a set of classification output conveyor belts. The discharging transfer position is located in the middle of the conveyor belt. The forward and reverse rotation of the conveyor belt can achieve the effect of removing NG parts from one end. The two ends can correspond to the NG reasons of both. The structure is simplified, ensuring the function of classification discharging.

[0074] Specific working principle: After all the tests are completed, the transfer component A7 transfers the injection ring 100 to the transfer position in the middle of the classification output conveyor belt. If the result is judged to be an NG part, the classification output conveyor belt rotates forward or reversely according to the specific NG reason, and transfers the NG part to the corresponding collection area at both ends. If the result is judged to be a qualified part, the classification output conveyor belt remains stationary and waits for the transfer mechanism of the subsequent assembly mechanism to grab it.

[0075] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A pre-assembly detection mechanism for an oil injection ring seal assembly line, comprising a frame (400), characterized in that: The frame (400) is provided with: A rotation positioning module (A2) is used to rotate the injection ring (100) to a predetermined angle; A coding and marking module (A3) is used to mark processing information on the fuel injection ring (100); A hole penetration detection module (A4) for detecting the penetration condition of the radial through hole (102) on the fuel injection ring (100); A dimension detection module (A5) is used to detect the outer diameter of the fuel injection ring (100), the width of the radial sealing groove (103), and the smoothness of the outer wall; Classification discharging module (A6) is used to classify and output NG materials according to specific NG reasons; A transfer assembly (A7), used for transferring the injection ring (100) between modules; The control computer is respectively connected to the rotation positioning module (A2), the coding and marking module (A3), the hole penetration detection module (A4), the size detection module (A5), the classification and discharge module (A6) and the transfer component (A7), and is used to control the coordinated actions of each module.

2. The pre-assembly detection mechanism of the fuel injection ring seal assembly line according to claim 1 is characterized in that: The rotary positioning module (A2) comprises a rotary positioning platform (A8) arranged on a frame (400), a positioning station is formed on the top surface of the rotary positioning platform (A8), and a plurality of positioning detection components (A9) are arranged on the side, the top surface of the rotary positioning platform (A8) is rotatably connected to a first rotary table surface (A10), and the first rotary table surface (A10) is connected to a first rotary drive component (A11); The positioning detection assembly (A9) comprises a first laser generator and a first receiver located on both sides of the positioning station and arranged opposite to each other, and the first laser generator and the first receiver are adapted to the height of the lug (101) at the upper end of the injection ring (100).

3. The pre-assembly detection mechanism of the fuel injection ring seal assembly line according to claim 1 is characterized in that: The hole penetration detection module (A4) comprises a hole penetration detection platform (A13) arranged on a frame (400), a penetration detection position is formed on the top surface of the hole penetration detection platform (A13), a plurality of groups of arc-shaped mounting blocks (A14) are radially slidably arranged on the hole penetration detection platform (A13), the arc-shaped mounting blocks (A14) are connected to the mounting block telescopic drive assembly (A15), and an air outlet nozzle (A16) is arranged 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 one-to-one to the radial through hole (102) of the injection ring (100), the air outlet nozzle (A16) is connected to a flow detector, and the flow velocity detector is connected to a control computer.

4. The pre-assembly detection mechanism of the fuel injection ring seal assembly line according to claim 1, characterized in that: The size detection module (A5) comprises a rotating detection platform (A17), a size detection position is formed on the top surface of the rotating detection platform (A17), and at least one set of size detection components (A22) is arranged on the side; The rotating inspection table (A17) comprises an inspection table base (A18) slidably connected to a frame (400) for vertical lifting and lowering, and a second rotating table top (A19) rotatably connected to the inspection table base (A18), wherein the second rotating table top (A19) is driven to rotate by a second rotating drive assembly (A20), and the inspection table base (A18) is driven to lift and lower by a base lifting drive assembly (A21); The size detection component (A22) comprises at least one set of a first camera for sending signals and a second camera for receiving signals, wherein the first camera and the second camera are arranged opposite to each other and are 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 side wall is smooth.

5. The pre-assembly detection mechanism of the fuel injection ring seal assembly line according to claim 1, characterized in that: The classification discharge module (A6) comprises a discharge transfer table (A23), a transfer position is formed on the discharge transfer table (A23), at least two groups of NG material output conveyor belts (A24) are vertically distributed on one side of the transfer position, an NG piece top block (A25) is slidably connected to the discharge transfer table (A23), a push assembly (A26) is provided between the NG piece top block (A25) and the discharge transfer table (A23), and a discharge lifting drive assembly (A27) is provided between the discharge transfer table (A23) and the frame (400); Alternatively, the classification discharging module (A6) comprises a classification output conveyor belt arranged on the frame (400), a discharging transfer position is provided in the middle of the classification output conveyor belt, and the classification output conveyor belt can rotate forward or reverse to classify and output NG materials from both ends.

6. The pre-assembly detection mechanism of the fuel injection ring seal assembly line according to claim 1, characterized in that: The coding and marking module (A3) comprises a coding platform (A28), a coding and marking position is formed on the top surface of the coding platform (A28), and a laser coding component (A29) is provided 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, and production number on the injection ring (100), and a ring-shaped inner positioning block (A30) is provided on the coding and marking position.

7. The pre-assembly detection mechanism of the fuel injection ring seal assembly line according to any one of claims 1 to 6, characterized in that: The transfer assembly (A7) includes a horizontal slide rail arranged on the frame (400), and a mounting slide slidably connected to the horizontal slide rail, a sliding drive assembly (A34) is provided between the mounting slide and the horizontal slide rail, and a claw hand assembly (A31) is provided on the mounting slide via a claw hand lifting structure (A49), and the claw hand assembly (A31) includes a clamping gripper (A32) or an internal expansion supporter (A33).

8. The pre-assembly detection mechanism of the fuel injection ring seal assembly line according to claim 7, characterized in that: The horizontal slide rail comprises a first slide rail (A35) arranged between the feeding module (A44) and the coding and marking module (A3); the mounting slide comprises a first slide (A36) slidably connected to the first slide rail (A35); the first slide (A36) is provided with two groups of inward expansion type supports (A33); the inward expansion type supports (A33) are distributed along the transfer direction, and the spacing between them is adapted to the spacing between the feeding module (A44), the rotation positioning module (A2) and the coding and marking module (A3); The horizontal slide rail further comprises a second slide rail (A37) arranged between the coding and marking module (A3) and the hole penetration detection module (A4); the mounting slide comprises a second slide (A38) slidably connected to the second slide rail (A37); and a group of the clamping grippers (A32) are arranged on the second slide (A38); The horizontal slide rail also includes a third slide rail (A39) arranged between the hole penetration detection module (A4) and the classification and discharge module (A6); the installation slide includes a third slide (A40) slidably connected to the third slide rail (A39); the third slide (A40) is provided with two groups of inward-expanding supports (A33); the inward-expanding supports (A33) are distributed along the transfer direction, and the spacing between them is adapted to the spacing between the hole penetration detection module (A4), the size detection module (A5) and the classification and discharge module (A6).

9. The pre-assembly detection mechanism of the fuel injection ring seal assembly line according to claim 7, characterized in that: The clamping gripper (A32) comprises a support arm mounting platform fixed on the bottom surface of the mounting slide, and at least three groups of support rods (A41) evenly distributed on the support arm mounting platform and radially retractable, a support rod retractable drive assembly is provided between the support arm mounting platform and the support rod (A41), and an elastic cushion layer (A43) is provided at the outer end of the support rod (A41); The internal expansion support (A33) includes a clamping jaw mounting platform fixed on the bottom surface of the mounting slide, and at least three groups of L-shaped clamping jaws (A42) that are evenly distributed on the clamping jaw mounting platform and can slide radially. A clamping jaw telescopic drive assembly is provided between the clamping jaw mounting platform and the L-shaped clamping jaw (A42), and an elastic cushion layer (A43) is provided on the inner side of the vertical action section of the L-shaped clamping jaw (A42).

10. The pre-assembly detection mechanism of the fuel injection ring seal assembly line according to any one of claims 1 to 6, characterized in that: A loading module (A44) is provided upstream of the rotation positioning module (A2), and the loading module (A44) includes a loading conveyor belt (A50). A V-shaped material blocking plate (A45) is provided at the downstream end of the loading conveyor belt (A50), and a loading waiting position is formed in the material blocking plate (A45). At least one group of material blocking columns (A46) are distributed along the conveying direction on the side of the loading conveyor belt (A50), and the material blocking columns (A46) are arranged on the frame (400) through a material blocking telescopic component (A47), and can be extended to the top of the loading conveyor belt (A50) to at least separate the loading waiting position and the upstream injection ring (100), and an idle detection component (A48) for detecting whether it is idle is provided on the side of the loading waiting position.

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