Oil rail automatic assembly equipment and process flow

Abstract

This invention discloses an automated assembly equipment and process flow for hydraulic rails, belonging to the field of mechanical manufacturing technology. The assembly equipment includes: a work platform with five workstations; a tooling circulation device for driving multiple positioning toolings to circulate among the five workstations; a bracket loading device for placing brackets onto the positioning tooling at the bracket loading station; a copper ring loading device for placing copper rings onto the positioning tooling at the copper ring loading station; a rail loading device for placing rails onto the positioning tooling at the rail loading station; a servo pressing device for pressing the rails, brackets, and copper rings together on the positioning tooling at the servo pressing station; and an assembly clamping device for clamping the hydraulic rails on the positioning tooling at the assembly clamping station. This invention achieves synchronous operation across multiple workstations through a tooling circulation line, using a single tooling to achieve integrated pre-positioning and centralized pressing of the bracket, copper ring, and rail, thus realizing efficient, homogeneous, and automated assembly.

Description

Technical Field

[0001] This invention relates to the field of mechanical manufacturing technology, and in particular to an automated oil rail assembly equipment and process flow. Background Technology

[0002] The fuel rail is a key component of the automotive fuel injection system assembly. During the manufacturing process, brackets, copper rings, and the main fuel rail pipe need to be assembled and connected. In existing technology, a common fuel rail structure uses brazing to connect the stainless steel main fuel rail pipe to several brackets. Before brazing, copper rings are placed on the main fuel rail pipe at the connection points, and then the brackets are pressed into the main fuel rail pipe, forming a mechanical connection between the brackets, copper rings, and the main fuel rail pipe.

[0003] Currently, the assembly of oil rail supports is mainly carried out using simple tooling. For example, an existing Chinese patent discloses a parts feeding mechanism for automated assembly (CN202220579965.0), which uses two sets of simple tooling to complete the assembly in separate steps: tooling one is used for assembling the copper ring with the oil inlet seat / pressure sensor; tooling two is used for assembling the component with the copper ring to the main body, and then using external equipment for welding and pressing.

[0004] However, the aforementioned existing technologies have the following shortcomings: First, assembly efficiency is low: existing technologies use discrete assembly methods with separate processes and tooling, resulting in long waiting times between processes, slow production cycle, and inability to meet the needs of mass production.

[0005] Second, the assembly accuracy of the bracket is difficult to guarantee: existing assembly equipment is difficult to accurately position the bracket. During the pressing process between the copper ring and the oil inlet seat or pressure sensor, or during the pressing process between the bracket assembly with the copper ring and the main body, the oil inlet seat, pressure sensor or bracket is prone to tilting. At the same time, due to the manufacturing errors such as bending, misalignment and mold thickness deviation of the oil rail main body, the method of pressing each bracket in one by one is prone to result in inconsistent height dimensions of the end face of each bracket.

[0006] Third, it is difficult to effectively detect missing copper rings: In the current assembly process, the placement of copper rings relies on manual operation, and there is a lack of effective means to prevent missing copper rings. Missing copper rings will result in insufficient pull-out force after brazing, which will seriously affect product quality. Summary of the Invention

[0007] The technical problem to be solved by the present invention is: In order to solve one or more technical problems existing in the prior art, the present invention provides an automated oil rail assembly equipment and process flow, which realizes multi-station synchronous operation through tooling circulation line, and uses a single tooling to realize the integrated pre-positioning of bracket, copper ring and rail body, and centralized pressing, thus solving the problems of low efficiency and inconsistent assembly quality, and realizing efficient and homogeneous automated assembly.

[0008] The technical solution adopted by this invention to solve its technical problem is: an automated oil rail assembly device, comprising: The work platform has five workstations arranged in sequence: a bracket loading workstation, a copper ring loading workstation, a rail loading workstation, a servo pressing workstation, and an assembly clamping workstation. Multiple positioning fixtures are provided, with one of the positioning fixtures corresponding to each workstation. The tooling circulation device is set on the work platform and is used to drive multiple positioning tooling to circulate between five workstations. A bracket loading device is provided at the bracket loading station and is used to place the bracket on the positioning fixture that is moved to the bracket loading station. A copper ring feeding device is provided at the copper ring feeding station and is used to place copper rings on the bracket of the positioning fixture that is moved to the copper ring feeding station. A rail body feeding device is provided at the rail body feeding station and is used to place the rail body on the copper ring on the positioning fixture that has been moved to the rail body feeding station. A servo press-fitting device is installed at a servo press-fitting station and is used to press the rail body on the positioning fixture that has been moved to the servo press-fitting station into a single unit with the bracket and the copper ring. An assembly clamping device is provided at the assembly clamping station and is used to clamp and transfer the integrated oil rail on the positioning fixture that has been moved to the assembly clamping station to the next station.

[0009] Furthermore, each positioning fixture includes: A movable component, comprising a movable slider and a floating support plate, wherein the floating support plate is disposed on the movable slider and is provided with guide posts, anti-loosening bolts and support springs; The positioning assembly includes a bracket positioning base plate, a bracket positioning seat, and a copper sleeve. The bracket positioning base plate is disposed on the floating support plate, and the bracket positioning base plate and the floating support plate are connected by the support spring. The bracket positioning seat is disposed on the bracket positioning base plate to support the bracket. The copper sleeve is installed on the bracket positioning base plate. The guide post passes through the copper sleeve and slides with the copper sleeve. The anti-loosening bolt passes through the bracket positioning base plate and is connected to the floating support plate. A transmission assembly includes a rack mounting plate, an upper rack, a lower rack, and rack baffles. The rack mounting plate is mounted on one side of the bracket positioning base plate. The upper rack and the lower rack are respectively disposed at the upper and lower ends of the rack mounting plate. Rack baffles are provided at both ends of the rack mounting plate.

[0010] Furthermore, the bracket positioning seat has multiple mounting slots, each of which is used to place a bracket. The mounting slots are either blind holes or through holes that penetrate the upper and lower surfaces of the bracket positioning seat. When the mounting slots are blind holes, the lower surfaces of the multiple mounting slots are located on the same horizontal plane.

[0011] Furthermore, the work platform is provided with a press-fit support side plate, which is arranged at the servo press-fit station and located on the moving path of the positioning fixture. When the positioning fixture moves to the servo press-fit station, the positioning fixture is located between the opposite sides of the press-fit support side plate, and the upper surface of the floating support plate is lower than the upper surface of the press-fit support side plate. When not press-fitting, the lower surface of the bracket positioning base plate is higher than the upper surface of the press-fit support side plate. When press-fitting, the lower surface of the bracket positioning base plate abuts against the upper surface of the press-fit support side plate.

[0012] Furthermore, there is a first gap h1 between the lower surface of the bracket positioning base plate and the upper surface of the press-fit support side plate, where h1 ranges from 0.7 to 1 mm; there is a second gap h2 between the upper surface of the floating support plate and the lower surface of the bracket positioning base plate, where h2 ranges from 1.5 to 1.8 mm; the copper sleeve is installed on the bracket positioning base plate by interference fit, and the guide post and the copper sleeve are in clearance fit, with the clearance range being 0.03 mm to 0.05 mm.

[0013] Furthermore, the tooling circulation device includes: A right lifting mechanism is provided on the working platform and is used to lift an unloaded positioning fixture from below the working platform along the Z direction to the support loading station. The upper traction mechanism is located at the upper end of the work platform and is used to simultaneously drive the positioning fixtures on five workstations to move in the X direction from the support loading workstation to the assembly clamping workstation. A left lifting mechanism, which is set on the working platform, is used to lower an unloaded positioning fixture along the Z direction from the assembly clamping station to below the working platform. The lower traction mechanism is located at the lower end of the working platform. At least one spare positioning fixture is provided on the lower traction mechanism. The lower traction mechanism is used to drive the spare positioning fixture to move along the X direction from the left lifting mechanism to the right lifting mechanism.

[0014] Furthermore, The right lifting mechanism includes: a right fixed bracket, a right linear motion mechanism body, a right horizontal support, a right linear guide rail, a right contact sensor, a right upper limit block, a right lower limit block, and a right slider. The right fixed bracket is connected to the working platform. The right linear motion mechanism body is mounted on the right fixed bracket. The right upper limit block and the right lower limit block are respectively mounted at the upper and lower ends of the right linear motion mechanism body. The right slider is slidably mounted on the right linear motion mechanism body and located between the right upper limit block and the right lower limit block. The right linear motion mechanism body is used to drive the right slider to reciprocate along the Z direction. The right horizontal support is connected to the right slider. The right linear guide rail is mounted on the right horizontal support along the X direction. The right contact sensor is mounted on the right horizontal support and located at one end of the right linear guide rail. The left lifting mechanism includes: a left fixed bracket, a left linear motion mechanism body, a left horizontal support, a left linear guide rail, a left contact sensor, a left upper limit block, a left lower limit block, and a left slider. The left fixed bracket is connected to the working platform. The left linear motion mechanism body is mounted on the left fixed bracket. The left upper limit block and the left lower limit block are respectively mounted at the upper and lower ends of the left linear motion mechanism body. The left slider is slidably mounted on the left linear motion mechanism body and is located between the left upper limit block and the left lower limit block. The left linear motion mechanism body is used to drive the left slider to reciprocate along the Z direction. The left horizontal support is connected to the left slider. The left linear guide rail is mounted along the X direction on the left horizontal support. The left contact sensor is mounted on the left horizontal support and is located at one end of the left linear guide rail. The upper traction mechanism includes: a secondary positioning lever, a CCD imaging component, a precision positioning component, an upper linear guide rail, a first upper fixed bracket, a second upper fixed bracket, and an upper double-sided toothed synchronous belt unit. The upper double-sided toothed synchronous belt unit is installed on the upper end of the work platform through the first and second upper fixed brackets. The upper linear guide rail is set on the work platform and located on one side of the upper double-sided toothed synchronous belt unit. The right and left linear guide rails can be respectively connected to the two ends of the upper linear guide rail. The secondary positioning lever is set at the bracket loading station and is used to abut against the two ends of the positioning fixture located on it during the upward movement of the right linear guide rail in the Z direction. The precision positioning component and the CCD imaging component are both set at the copper ring loading station. The precision positioning component is located on one side of the upper linear guide rail and is used to position the positioning fixture that moves to the copper ring loading station. The CCD imaging component is used to take pictures of the copper ring on the positioning fixture located at the copper ring loading station. The lower traction mechanism includes: a lower support plate, a lower double-sided toothed synchronous belt unit, a lower linear guide rail, and a lower sensor. The lower double-sided toothed synchronous belt unit is mounted on the lower end of the work platform via the lower support plate. The lower linear guide rail is set on the lower support plate along the X direction and located on one side of the lower double-sided toothed synchronous belt unit. The right linear guide rail and the left linear guide rail can respectively dock with the two ends of the lower linear guide rail. The lower sensor is set on the lower support plate and located at the end of the lower linear guide rail near the right linear guide rail. The lower rack on the spare positioning fixture meshes with the upper teeth of the lower double-sided toothed synchronous belt unit. The lower double-sided toothed synchronous belt unit is used to drive the spare positioning fixture to move along the X direction from the left linear guide rail, through the lower linear guide rail, to the right linear guide rail.

[0015] Furthermore, The support loading device includes a first double exchange storage component and a first three-axis robot arm set on the work platform. The first double exchange storage component is used to supply supports, and the first three-axis robot arm is used to transfer the supports on the first double exchange storage component to the positioning fixture of the support loading station. The copper ring feeding device includes a vibratory feeder and a second and third-axis robot arm set on the working platform. The vibratory feeder is used to arrange the copper rings in a preset posture and transport them to the picking position. The second and third-axis robot arm is used to transfer the copper rings at the picking position to the bracket on the positioning fixture of the copper ring feeding station. The rail body feeding device includes a second double-exchange storage component and a third three-axis robot arm set on the working platform. The second double-exchange storage component is used to supply the rail body, and the third three-axis robot arm is used to transfer the rail body on the second double-exchange storage component to the copper ring on the positioning fixture of the rail body feeding station.

[0016] Furthermore, The servo press-fitting device includes a servo press, a displacement sensor, a pressure sensor, and a press-fitting fixture. The servo press is mounted on a work platform, and both the displacement sensor and the pressure sensor are mounted on the servo press. The press-fitting fixture is connected to the output end of the servo press and is used to press the rail body into the bracket and the copper ring. The assembly clamping device includes a fourth three-axis robot and a pneumatic rotary gripper. The fourth three-axis robot is mounted on the work platform, and the pneumatic rotary gripper is mounted at the end of the fourth three-axis robot. The fourth three-axis robot is used to drive the pneumatic rotary gripper to move in the XYZ three-dimensional space. The pneumatic rotary gripper is used to grip the press-fitted oil rail located at the assembly clamping station.

[0017] A process flow, wherein an automated oil rail assembly equipment as described in any of the above claims is used, the process flow includes the following steps: Step S1: Preparation: Arrange five positioning fixtures sequentially at the five workstations of the upper traction mechanism above the work platform, and arrange at least one spare unloaded positioning fixture on the lower traction mechanism below the work platform. Preset the motion parameters of each device. Step S2, Parallel Operation: Keep each positioning fixture at the five workstations stationary. During the stationary period, perform the following parallel operations: At the support loading station, the support loading operation is performed: the support loading device places the support onto the positioning fixture that has been moved to the support loading station; At the copper ring feeding station, the copper ring feeding operation is performed: the copper ring feeding device places the copper ring on the bracket on the positioning fixture that has been moved to the copper ring feeding station; At the rail loading station, the rail loading operation is performed: the rail loading device places the rail on the copper ring on the positioning fixture that has been moved to the rail loading station. At the servo press-fit station, the press-fit operation is performed: the servo press-fit device presses the rail body, bracket and copper ring on the positioning fixture that has been moved to the servo press-fit station into one piece. At the assembly clamping station, the finished product removal operation is performed: the assembly clamping device removes and transfers the finished oil rail that has been pressed into one piece on the positioning fixture that has been moved to the assembly clamping station. Step S3, Unloaded return: During the parallel operation, the left lifting mechanism moves the unloaded positioning fixture, which has completed the removal of finished parts at the assembly clamping station, down to the lower traction mechanism below the work platform. The lower traction mechanism then moves the unloaded positioning fixture to the right lifting mechanism along the X direction. Step S4, Tooling forward movement: After the parallel operation is completed, the upper traction mechanism drives each positioning tooling above the work platform to move forward one station synchronously from the support loading station to the assembly clamping station. Step S5, Empty tooling replacement: Before the next parallel operation, the right lifting mechanism lifts the empty positioning tooling conveyed from the lower traction mechanism to the support loading station above the work platform. Step S6, cyclic execution: Repeat steps S2 to S5, and through continuous stepping movement, make each positioning fixture pass through five workstations in sequence to achieve continuous automated assembly.

[0018] The beneficial effects of this invention are: 1. Significantly improves assembly efficiency and shortens production cycle time: This invention adopts a five-station parallel operation mode. The upper traction mechanism drives five positioning fixtures to move synchronously, while the lower traction mechanism reverses and returns the unloaded positioning fixtures. This enables the simultaneous execution of five processes: bracket loading, copper ring loading, rail loading, servo pressing, and finished product removal, eliminating the waiting time between processes in traditional multi-process assembly. Through the cyclical flow of the positioning fixtures, the unloaded positioning fixtures can quickly return to the bracket loading station for reuse after pressing, ensuring continuous and uninterrupted assembly. The entire assembly process requires only one pressing to complete the overall forming of the oil rail.

[0019] 2. Effectively ensures consistent end face height of the bracket and prevents bracket tilting: This invention creates multiple mounting slots on the bracket positioning seat. These mounting slots constrain the bracket in the X and Y directions. By ensuring the diameter and position of the mounting slots during processing, bracket tilting can be prevented. This ensures that the axis of each bracket is perpendicular to the rail body during press-fitting, effectively eliminating the quality defects of bracket tilting in the prior art. At the same time, the mounting slots ensure that the end faces of multiple brackets are located on the same horizontal reference plane, guaranteeing that the initial positioning reference of each bracket in the Z direction is consistent, and ensuring that the end face height of each bracket is consistent after press-fitting.

[0020] 3. A suitable process sequence for automated assembly of oil rails was designed: The process flow of this invention uses a special positioning fixture for bracket installation and positioning, then copper rings and stainless steel rail bodies are placed in sequence, and finally a servo press is used to apply pressure to the rail body, which can press in four brackets at the same time, so that the brackets, copper rings and rail bodies are mechanically connected. The four functions of bracket pre-positioning, copper ring pre-positioning, rail body pre-positioning and pressing are integrated into a set of movable positioning fixtures. The fixture circulation device forms a closed rectangular circulation loop, realizing a high degree of integration of the four functions of fixture circulation movement, workpiece pre-positioning, workpiece assembly and empty fixture return.

[0021] 4. Automated detection of missing copper rings to ensure product quality: This invention uses a CCD imaging component to automatically identify and detect copper rings, and combines pressure and displacement sensors to monitor the pressing process in real time, realizing automated quality monitoring of the entire assembly process and avoiding quality risks caused by missing copper rings. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a structural schematic diagram of the automated assembly equipment according to Embodiment 1 of the present invention.

[0024] Figure 2 This is a structural schematic diagram of the automated assembly equipment according to Embodiment 1 of the present invention from another perspective.

[0025] Figure 3 This is an exploded view of the oil rail according to Embodiment 1 of the present invention.

[0026] Figure 4 This is a diagram of the support loading process according to Embodiment 1 of the present invention.

[0027] Figure 5 This is a diagram of the copper ring feeding process according to Embodiment 1 of the present invention.

[0028] Figure 6 This is a diagram of the rail loading process according to Embodiment 1 of the present invention.

[0029] Figure 7 This is a schematic diagram of the tooling circulation device according to Embodiment 1 of the present invention.

[0030] Figure 8 This is a schematic diagram of the right lifting mechanism according to Embodiment 1 of the present invention.

[0031] Figure 9 This is a schematic diagram of the upper traction mechanism according to Embodiment 1 of the present invention.

[0032] Figure 10 This is a schematic diagram of the left lifting mechanism according to Embodiment 1 of the present invention.

[0033] Figure 11 This is a schematic diagram of the lower traction mechanism according to Embodiment 1 of the present invention.

[0034] Figure 12 This is a schematic diagram of the bracket assembly and positioning fixture according to Embodiment 1 of the present invention.

[0035] Figure 13 This is a schematic diagram of the bracket assembly and positioning fixture of the servo press-fitting station according to Embodiment 1 of the present invention.

[0036] Figure 14 yes Figure 13 Side view.

[0037] Figure 15 yes Figure 13 Exploded view of the positioning fixture for the middle support assembly.

[0038] Figure 16This is a schematic diagram of the precise positioning component according to Embodiment 2 of the present invention.

[0039] Figure 17 This is a schematic diagram of the contact between the secondary positioning paddle and the positioning fixture in Embodiment 3 of the present invention.

[0040] In the diagram: 1. Working platform; 2. Positioning fixture; 3. Fixture circulation device; 4. Support feeding device; 5. Copper ring feeding device; 6. Rail body feeding device; 7. Servo pressing device; 8. Assembly clamping device; 001. Support; 002. Copper ring; 003. Rail body; 101. Bracket loading station; 102. Copper ring loading station; 103. Rail loading station; 104. Servo pressing station; 105. Assembly clamping station; 201. Moving slider; 202. Floating support plate; 203. Guide post; 204. Anti-loosening bolt; 205. Support spring; 206. Bracket positioning base plate; 207. Bracket positioning seat; 208. Copper sleeve; 209. Rack mounting plate; 210. Upper rack; 211. Lower rack; 212. Rack baffle; 213. Press-fit support side plate; 214. Mounting groove; 215. Semi-circular positioning groove; 301. Right lifting mechanism; 3011. Right fixed bracket; 3012. Right linear motion mechanism body; 3013. Right horizontal support; 3014. Right linear guide rail; 3015. Right contact sensor; 3016. Right upper limit block; 3017. Right lower limit block; 3018. Right slider; 302. Upper traction mechanism; 3021. Secondary positioning lever; 3022. CCD imaging component; 3023. Precision positioning component; 30231. Precision positioning cylinder; 30232. Positioning pin; 3024. Upper linear guide rail; 3025. First upper... Fixed bracket; 3026, Second upper fixed bracket; 3027, Upper double-sided toothed synchronous belt unit; 303, Left lifting mechanism; 3031, Left fixed bracket; 3032, Left linear motion mechanism body; 3033, Left horizontal support; 3034, Left linear guide rail; 3035, Left contact sensor; 3036, Left upper limit block; 3037, Left lower limit block; 3038, Left slider; 304, Lower traction mechanism; 3041, Lower support plate; 3042, Lower double-sided toothed synchronous belt unit; 3043, Lower linear guide rail; 3044, Lower sensor; 401. First dual-exchange storage assembly; 402. First three-axis robotic arm; 501. Vibratory feeder; 502. Second and third-axis robotic arm; 601. Second dual-exchange storage assembly; 602. Third three-axis robotic arm; 701. Servo press; 702. Displacement sensor; 703. Pressure sensor; 704. Press-in fixture; 801. Fourth three-axis robotic arm; 802. Pneumatic rotary gripper. Detailed Implementation

[0041] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0042] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] like Figures 1-15The diagram shows an automated oil rail assembly device according to Embodiment 1 of the present invention, comprising: a work platform 1, multiple positioning fixtures 2, a fixture circulation device 3, a bracket feeding device 4, a copper ring feeding device 5, a rail body feeding device 6, a servo pressing device 7, and an assembly clamping device 8. The work platform 1 has five stations arranged sequentially: a bracket feeding station 101, a copper ring feeding station 102, a rail body feeding station 103, a servo pressing station 104, and an assembly clamping station 105. Each station has a corresponding positioning fixture 2. The fixture circulation device 3 is located on the work platform 1 and drives the multiple positioning fixtures 2 to circulate among the five stations. The bracket feeding device 4 is located at the bracket feeding station 101 and is used to place the bracket 001 onto the station. The support loading station 101 is positioned on the positioning fixture 2; the copper ring loading device 5 is set at the copper ring loading station 102, and is used to place the copper ring on the support 001 that has moved to the positioning fixture 2 at the copper ring loading station 102; the rail loading device 6 is set at the rail loading station 103, and is used to place the rail 003 on the copper ring 002 that has moved to the positioning fixture 2 at the rail loading station 103; the servo pressing device 7 is set at the servo pressing station 104, and is used to press the rail 003, the support 001 and the copper ring 002 together with the positioning fixture 2 that has moved to the servo pressing station 104; the assembly clamping device 8 is set at the assembly clamping station 105, and is used to clamp the press-fitted oil rail that has moved to the positioning fixture 2 at the assembly clamping station 105 and transfer it to the next station. By adopting the above scheme, the pre-positioning and pressing of each part can be carried out simultaneously. The production cycle time of the production line is defined as the work station with the longest working time among the five work stations. In this embodiment, the work station with the longest working time is the servo pressing work station 104, with a working time of 30 seconds. As a result, the production cycle time is increased from 3 minutes / pieces to 0.5 minutes / pieces, and the production efficiency is increased by 6 times, which greatly improves the production efficiency and meets the needs of mass production.

[0045] like Figures 3-5 As shown, the oil rail includes a rail body 003, a copper ring 002, and a bracket 001. Using the assembly equipment of this embodiment, the bracket 001 is placed on the positioning fixture 2 at the bracket loading station 101. Specifically, the bracket loading device 4 can grab two brackets 001 at a time and place the two brackets 001 into the two mounting slots 214 on the positioning fixture 2 respectively. The bracket loading device 4 grabs twice in total, and a total of four brackets 001 are placed on the positioning fixture 2. Then, the positioning fixture 2 moves to the copper ring loading station 102. At the copper ring feeding station 102, the copper ring 002 is placed on the bracket 001 on the positioning fixture 2. Specifically, the copper ring feeding device 5 can grab one copper ring 002 at a time, and grabs it four times in total. Then, the positioning fixture 2 moves to the rail body feeding station 103. At the rail body loading station 103, the rail body 003 is placed on the copper ring 002 on the positioning fixture 2. Specifically, the rail body loading device 6 grabs one rail body 003 at a time, and only grabs it once. Then, the positioning fixture 2 moves to the servo pressing station 104. At the servo press-fit station 104, the rail body 003, bracket 001, and copper ring 002 are press-fitted together to form an oil rail.

[0046] In this embodiment, as Figures 12-15 As shown, each positioning fixture 2 includes: a moving component, a positioning component, and a transmission component. The moving component includes a moving slider 201 and a floating support plate 202. The moving slider 201 can slide on the right linear guide rail 3014, the upper linear guide rail 3024, the left linear guide rail 3034, or the lower linear guide rail 3043. The floating support plate 202 is bolted to the moving slider 201. The floating support plate 202 is provided with guide posts 203, anti-loosening bolts 204, and four support springs 205. 203 is fixed to the floating support plate 202 by bolts; the positioning assembly includes a bracket positioning base plate 206, a bracket positioning seat 207, and a copper sleeve 208. The bracket positioning base plate 206 is set on the floating support plate 202, and the bracket positioning base plate 206 and the floating support plate 202 are connected by four support springs 205. The bracket positioning seat 207 is installed on the bracket positioning base plate 206 by bolts to support the bracket 001. The copper sleeve 208 is installed on the bracket positioning base plate 206, and the guide post 20... 3. The anti-loosening bolt 204 passes through the bracket positioning base plate 206 and is slidably fitted to the copper sleeve 208. When not pressed, the support spring 205 lifts the bracket positioning base plate 206 upward, maintaining a gap between the bracket positioning base plate 206 and the press-fit support side plate 213, so that the positioning fixture 2 can avoid rigid interference with surrounding components during horizontal movement. The transmission assembly includes a rack mounting plate 209, an upper rack 210, and a lower rack 211. The rack and pinion baffle 212 and the rack mounting plate 209 are bolted to one side of the bracket positioning base plate 206. The upper rack 210 and the lower rack 211 are respectively set at the upper and lower ends of the rack mounting plate 209. Both ends of the rack mounting plate 209 are provided with rack baffles 212. Through the switchable meshing transmission between the upper rack 210, the lower rack 211 and the upper double-sided toothed synchronous belt unit 3027 and the lower double-sided toothed synchronous belt unit 3042, the positioning fixture 2 can move smoothly in the upper and lower circulating lines.

[0047] In this embodiment, the bracket positioning base 207 has multiple mounting slots 214, each used to place a bracket 001. The bracket 001 is limited in the X and Y directions by the hole wall of the mounting slot 214, achieving precise pre-positioning of the bracket 001 and effectively preventing the bracket 001 from tilting during the pressing process. The mounting slot 214 is a blind hole or a through hole penetrating the upper and lower surfaces of the bracket positioning base 207. When the mounting slot 214 is a through hole, the bracket 001 is inserted into the through hole, and its end face contacts the upper surface of the bracket positioning base plate 206. Alternatively, when the mounting slot 214 is a blind hole, the lower surfaces of the multiple mounting slots 214 are located on the same horizontal plane, so that the positioning reference plane of each bracket 001 on the positioning fixture 2 is located on the same horizontal plane, and the end face height of each bracket 001 is consistent after pressing.

[0048] In this embodiment, two opposing press-fitting support side plates 213 are provided on the work platform 1. The press-fitting support side plates 213 are arranged at the servo press-fitting station 104 and are located on the moving path of the positioning fixture 2. When the positioning fixture 2 moves to the servo press-fitting station 104, the moving component is arranged between the two press-fitting support side plates 213, and the upper surface of the floating support plate 202 is lower than the upper surface of the press-fitting support side plate 213. When not press-fitting, the lower surface of the bracket positioning base plate 206 is higher than the upper surface of the press-fitting support side plate 213, so that the positioning fixture 2 can smoothly enter the servo press-fitting station 104. When press-fitting, the lower surface of the bracket positioning base plate 206 abuts against the upper surface of the press-fitting support side plate 213, and the press-fitting force is transmitted through the bracket positioning base plate 206 to the press-fitting support side plate 213 and then to the work platform 1, avoiding the press-fitting force from directly acting on the moving slider 201 and the linear guide.

[0049] In this embodiment, there is a first gap h1 between the lower surface of the bracket positioning base plate 206 and the upper surface of the press-fit support side plate 213, where h1 ranges from 0.7 to 1 mm; there is a second gap h2 between the upper surface of the floating support plate 202 and the lower surface of the bracket positioning base plate 206, where h2 ranges from 1.5 to 1.8 mm; the copper sleeve 208 is installed on the bracket positioning base plate 206 by interference fit, and the guide post 203 and the copper sleeve 208 are in clearance fit, with a clearance range of 0.03 mm to 0.05 mm. In the servo press-fit station 104, this ensures that the guide post 203 slides smoothly in the copper sleeve 208 and also serves as a contact drive.

[0050] Specifically, the moving principle of the positioning fixture 2 is as follows: the upper double-sided toothed synchronous belt unit 3027 or the lower double-sided toothed synchronous belt unit 3042 moves, thereby driving the upper rack 210 or the lower rack 211 that meshes with it to move along the X direction, so that the copper sleeve 208 on the bracket positioning base plate 206 contacts the guide post 203 on the floating support plate 202, thereby driving the moving slider 201 on the floating support plate 202 to slide on the right linear guide rail 3014, the upper linear guide rail 3024, the left linear guide rail 3034 or the lower linear guide rail 3043.

[0051] When the positioning fixture 2 moves to the servo pressing station 104, the pressing force is applied to the rail body 003, which in turn drives the bracket positioning base plate 206 to move downward to compress the support spring 205, and then contacts the pressing support side plate 213 to realize the pressing operation. After the pressing is completed, the elastic force of the support spring 205 is used to support the bracket positioning base plate 206 upward, maintaining a gap between the bracket positioning base plate 206 and the pressing support side plate 213. The above-mentioned movement process of the positioning fixture 2 is repeated to realize the cyclic switching of the positioning fixture 2 in the upper and lower circulation lines.

[0052] In this embodiment, the tooling circulation device 3 includes: The right lifting mechanism 301 is set on the work platform 1 and is used to lift an unloaded positioning fixture 2 from below the work platform 1 along the Z direction to the support loading station 101. The upper traction mechanism 302 is located at the upper end of the work platform 1 and is used to simultaneously drive the positioning fixtures 2 on five workstations to move in the X direction from the support loading workstation 101 to the assembly clamping workstation 105. The left lifting mechanism 303 is set on the work platform 1 and is used to lower an unloaded positioning fixture 2 along the Z direction to the bottom of the work platform 1. The lower traction mechanism 304 is located at the lower end of the working platform 1. At least one spare positioning fixture 2 is provided on the lower traction mechanism 304. The lower traction mechanism 304 is used to drive the spare positioning fixture 2 to move along the X direction from the left lifting mechanism 303 to the right lifting mechanism 301.

[0053] Using the above scheme, a rectangular closed-loop circulation path is formed by the right lifting mechanism 301, the upper traction mechanism 302, the left lifting mechanism 303, and the lower traction mechanism 304. After completing each process at five stations above the work platform 1, the positioning fixture 2 is transferred to the area below the work platform 1 by the left lifting mechanism 303, moved horizontally to the right side by the lower traction mechanism 304, and then lifted back above the work platform 1 by the right lifting mechanism 301 to re-enter the support loading station 101. This double-layer circulation layout effectively saves the horizontal space occupied by the equipment, making the overall structure of the equipment compact. At least one spare positioning fixture 2 is provided on the lower traction mechanism 304. When the right lifting mechanism 301 lifts one spare fixture to the area above the work platform 1, the lower traction mechanism 304 can move the other spare fixture horizontally to the position of the right lifting mechanism 301 to stand by. Through timing control and the coordination of the upper and lower circulation lines, it is ensured that the positioning fixtures 2 at the five stations above the work platform 1 are promptly replaced after each horizontal step movement, realizing continuous and uninterrupted production of the equipment.

[0054] Specifically, such as Figure 7 As shown, if the transfer time of the positioning fixture 2 is greater than the working time of the single station with the longest time among the five stations, multiple spare positioning fixtures 2 can be set on the lower traction mechanism 304.

[0055] More specifically, the movement speed of the positioning fixture 2 on the upper traction mechanism 302 and the lower traction mechanism 304 can be different. The movement speed on the upper traction mechanism 302 depends on the working time of the single station with the longest time consumption among the five stations, while the movement speed on the lower traction mechanism 304 only needs to ensure that the spare positioning fixture 2 can be delivered to the support loading station 101 in time during the loading action interval of the positioning fixture 2 above the work platform 1.

[0056] In this embodiment, The right lifting mechanism 301 includes: a right fixed bracket 3011, a right linear motion mechanism body 3012, a right horizontal support 3013, a right linear guide rail 3014, a right contact sensor 3015, a right upper limit block 3016, a right lower limit block 3017, and a right slider 3018. The right fixed bracket 3011 is connected to the work platform 1. The right linear motion mechanism body 3012 is mounted on the right fixed bracket 3011. The right upper limit block 3016 and the right lower limit block 3017 are respectively located at the upper and lower ends of the right linear motion mechanism body 3012. The right slider 3018 slides. The right linear motion mechanism body 3012 is mounted on the right linear motion mechanism body 3012 and located between the right upper limit block 3016 and the right lower limit block 3017. The right linear motion mechanism body 3012 is used to drive the right slider 3018 to reciprocate along the Z direction. The right horizontal support 3013 is connected to the right slider 3018. The right linear guide rail 3014 is mounted on the right horizontal support 3013 along the X direction. Thus, the right linear guide rail 3014 follows the right slider 3018 to reciprocate along the Z direction. The right contact sensor 3015 is mounted on the right horizontal support 3013 and located at one end of the right linear guide rail 3014. The left lifting mechanism 303 includes: a left fixed bracket 3031, a left linear motion mechanism body 3032, a left horizontal support 3033, a left linear guide rail 3034, a left contact sensor 3035, a left upper limit block 3036, a left lower limit block 3037, and a left slider 3038. The left fixed bracket 3031 is connected to the working platform 1. The left linear motion mechanism body 3032 is mounted on the left fixed bracket 3031. The left upper limit block 3036 and the left lower limit block 3037 are respectively mounted at the upper and lower ends of the left linear motion mechanism body 3032. The left slider 3038 is slidably mounted on the left linear motion mechanism body 3032 and is located at the upper and lower ends of the left upper limit block 3036 and the left lower limit block 3037. Between the position blocks 3037, the left linear motion mechanism body 3032 is used to drive the left slider 3038 to reciprocate along the Z direction. The left horizontal support 3033 is connected to the left slider 3038. The left linear guide rail 3034 is set on the left horizontal support 3033 along the X direction, so the left linear guide rail 3034 follows the left slider 3038 to reciprocate along the Z direction. The left contact sensor 3035 is set on the left horizontal support 3033 and located at one end of the left linear guide rail 3034. Each lifting mechanism is equipped with an upper limit block and a lower limit block to mechanically limit the lifting stroke of the slider and prevent overtravel. The horizontal support is equipped with a contact sensor to detect whether the positioning fixture 2 is in place. The upper traction mechanism 302 includes: a CCD imaging component 3022, an upper linear guide rail 3024, a first upper fixed bracket 3025, a second upper fixed bracket 3026, and an upper double-sided toothed synchronous belt unit 3027. The upper double-sided toothed synchronous belt unit 3027 is mounted on the upper end of the work platform 1 via the first upper fixed bracket 3025 and the second upper fixed bracket 3026. The upper linear guide rail 3024 is disposed on the work platform 1 and located on one side of the upper double-sided toothed synchronous belt unit 3027. The right linear guide rail 3014 and the left linear guide rail 3034 are... The CCD imaging components 3022 are respectively connected to both ends of the upper linear guide rail 3024 and are set at the copper ring loading station 102. The CCD imaging components 3022 are used to take pictures of the copper ring 002 on the positioning fixture 2 located at the copper ring loading station 102. The two pressing support side plates 213 are set at the servo pressing station 104 and located on both sides of the upper linear guide rail 3024. The CCD imaging components 3022 are set at the copper ring loading station 102 to perform image detection on the placement of the copper ring 002, effectively preventing the copper ring 002 from being missed. The lower traction mechanism 304 includes: a lower support plate 3041, a lower double-sided toothed synchronous belt unit 3042, a lower linear guide rail 3043, and a lower sensor 3044. The lower double-sided toothed synchronous belt unit 3042 is mounted on the lower end of the work platform 1 via the lower support plate 3041. The lower linear guide rail 3043 is arranged along the X direction on the lower support plate 3041 and located on one side of the lower double-sided toothed synchronous belt unit 3042. The right linear guide rail 3014 and the left linear guide rail 3034 can respectively connect to the two ends of the lower linear guide rail 3043. The lower sensor 3044 is arranged on the lower support plate 3041 and located near the right side of the lower linear guide rail 3043. One end of the linear guide 3014 is defined by the lower sensor 3044 as the waiting position of the standby positioning fixture 2 on the lower linear guide 3043. When the right linear guide 3014 descends to be in the same straight line as the lower linear guide 3043, the standby positioning fixture 2 can move onto the right linear guide 3014. The lower rack 211 on the standby positioning fixture 2 meshes with the upper teeth of the lower double-sided toothed synchronous belt unit 3042. The lower double-sided toothed synchronous belt unit 3042 is used to drive the standby positioning fixture 2 to move along the X direction from the left linear guide 3034 through the lower linear guide 3043 to the right linear guide 3014.

[0057] Specifically, both the upper double-sided toothed synchronous belt unit 3027 and the lower double-sided toothed synchronous belt unit 3042 include: a drive motor, a synchronous pulley, and a double-sided toothed synchronous belt. The drive motor drives the synchronous pulley to rotate, and the synchronous pulley meshes with the internal teeth of the double-sided toothed synchronous belt, thereby driving the double-sided toothed synchronous belt to move in a circular motion. The upper rack 210 and the lower rack 211 are respectively disposed at the upper and lower ends of the rack mounting plate 209, and respectively engage with the double-sided toothed synchronous belt of the upper double-sided toothed synchronous belt unit 3027 or the lower double-sided toothed synchronous belt unit 3042. The double-sided toothed synchronous belt selectively engages, for example: when the positioning fixture 2 is above the working platform 1, the upper rack 210 engages with the outer teeth on the lower side of the double-sided toothed synchronous belt in the upper double-sided toothed synchronous belt unit 3027; when the positioning fixture 2 is below the working platform 1, the lower rack 211 engages with the outer teeth on the upper side of the double-sided toothed synchronous belt in the lower double-sided toothed synchronous belt unit 3042, so that the same positioning fixture 2 can be used with both the upper traction mechanism 302 and the lower traction mechanism 304, without the need for additional transmission accessories, resulting in a simple structure.

[0058] Specifically, the movement time of the right linear guide 3014 following the right slider 3018 and the movement time of the left linear guide 3034 following the left slider 3038 must both be less than the working time of the longest single station among the five stations. In other words, before the upper traction mechanism 302 above the work platform 1 moves all the positioning fixtures 2 one position to the left, the positioning fixture 2 located at the assembly clamping station 105 is lowered and transferred to the bottom of the work platform 1 by the left lifting mechanism 303, and then moved to the right by the lower traction mechanism 304. Then the left lifting mechanism 303 rises and returns to the initial position to free up the position. After all the positioning fixtures 2 have completed assembly, the upper traction mechanism 302 moves all the positioning fixtures 2 one position to the left. Then the right lifting mechanism 301 descends, and the lower traction mechanism 304 moves a spare positioning fixture 2 from the lower linear guide rail 3043 to the right linear guide rail 3014. The right lifting mechanism 301 then transfers the positioning fixture 2 on the right linear guide rail 3014 to the support loading station 101 above the work platform 1 and completes the loading of the support 001. At the same time, the positioning fixture 2 transferred to the assembly clamping station 105 repeats the above movements.

[0059] In this embodiment, The support loading device 4 includes a first double exchange storage component 401 and a first three-axis robot 402 disposed on the work platform 1. The first double exchange storage component 401 is used to supply the support 001, and the first three-axis robot 402 is used to transfer the support 001 on the first double exchange storage component 401 to the positioning fixture 2 of the support loading station 101. The copper ring feeding device 5 includes a vibratory feeder 501 and a second three-axis robot 502 set on the working platform 1. The vibratory feeder 501 is used to arrange the copper rings 002 in a preset posture and transport them to the picking position. The second three-axis robot 502 is used to transfer the copper rings 002 at the picking position to the bracket 001 on the positioning fixture 2 of the copper ring feeding station 102. The rail body feeding device 6 includes a second double-exchange storage component 601 and a third three-axis robot 602 mounted on the work platform 1. The second double-exchange storage component 601 supplies the rail body 003, and the third three-axis robot 602 transfers the rail body 003 from the second double-exchange storage component 601 to the copper ring 002 on the positioning fixture 2 of the rail body feeding station 103. Both the bracket feeding device 4 and the rail body feeding device 6 use double-exchange storage components. When the material at one storage station is used up, it can automatically switch to another storage station to continue feeding. The equipment can replenish materials without stopping, ensuring the continuity of production. The bracket feeding device 4, the copper ring feeding device 5, and the rail body feeding device 6 all use three-axis robots for picking and placing materials. The three-axis robots can accurately position themselves in the XYZ three-dimensional space, ensuring that the parts are accurately placed in the predetermined position of the positioning fixture 2, improving the feeding accuracy and consistency.

[0060] In this embodiment, The servo press-fitting device 7 includes a servo press 701, a displacement sensor 702, a pressure sensor 703, and a pressing fixture 704. The servo press 701 is mounted on the work platform 1, the displacement sensor 702 is mounted on the servo press 701, and the pressure sensor 703 is bolted to the pressing fixture 704. The pressing fixture 704 is connected to the output end of the servo press 701 and is used to press the rail body 003 into the bracket 001 and the copper ring 002. The pressure sensor 703 and the displacement sensor 702 are set at the servo press-fitting station 104 to monitor the press-fitting process in real time. During press-fitting, the pressing fixture 704 presses against multiple press-fitting points on the rail body 003, pressing the rail body 003 into multiple brackets 001 and copper rings 002 at one time. The four brackets 001 are pressed in at the same time, ensuring that the pressing depth and end face height of each bracket 001 are consistent. The assembly clamping device 8 includes a fourth three-axis robot 801 and a pneumatic rotary gripper 802. The fourth three-axis robot 801 is mounted on the work platform 1, and the pneumatic rotary gripper 802 is mounted at the end of the fourth three-axis robot 801. The fourth three-axis robot 801 is used to drive the pneumatic rotary gripper 802 to move in the XYZ three-dimensional space. The pneumatic rotary gripper 802 is used to grab the press-fit integrated oil rail located at the assembly clamping station 105 and rotate it 180° before transferring it, thus realizing the automated unloading of the finished product.

[0061] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention.

[0062] In addition to the above, the present invention also has the following embodiments: Example 2: like Figure 16 As shown, The difference from Embodiment 1 is that, in order to ensure the feeding accuracy of the copper ring 002, the upper traction mechanism 302 also includes a precision positioning component 3023. The precision positioning component 3023 is set at the copper ring feeding station 102. The precision positioning component 3023 is located on one side of the upper linear guide rail 3024 and is used to position the positioning fixture 2 that moves to the copper ring feeding station 102.

[0063] Specifically, the precision positioning component 3023 includes a precision positioning cylinder 30231 and a positioning pin 30232. The positioning pin 30232 is located at the moving end of the precision positioning cylinder 30231. The precision positioning cylinder 30231 is located on one side of the upper linear guide 3024 and is used to drive the positioning pin 30232 to move closer to or away from the upper linear guide 3024 along the Y direction.

[0064] More specifically, a semi-circular positioning groove 215 is provided on the other side of the bracket positioning base plate 206. The semi-circular positioning groove 215 is used to accommodate the positioning pin 30232. When the positioning fixture 2 moves to the copper ring feeding station 102, the precision positioning cylinder 30231 drives the positioning pin 30232 to press against the semi-circular positioning groove 215, thereby achieving precise positioning of the positioning fixture 2 at the copper ring feeding station 102 and ensuring the feeding accuracy of the copper ring 002.

[0065] Example 3: like Figure 17 As shown, The difference from Embodiment 1 is that, since the positioning fixture 2 may experience left and right displacement on the right linear guide rail 3014 when it is lifted upward by the right lifting mechanism 301, in order to ensure the feeding accuracy of the bracket 001, the upper traction mechanism 302 also includes a secondary positioning paddle 3021. The secondary positioning paddle 3021 is set on the working platform 1 and located at the bracket feeding station 101. The working platform 1 has a right channel hole for the right linear guide rail 3014 to pass through. There are two secondary positioning paddles 3021, which are respectively set on both sides of the opening of the right channel hole. When the right linear guide rail 3014 drives the spare positioning fixture 2 to rise in the Z direction, the secondary positioning paddle 3021 abuts against the two ends of the positioning fixture 2 located on the right linear guide rail 3014, playing a guiding and limiting role, realizing the accurate positioning of the positioning fixture 2 at the bracket feeding station 101, thereby ensuring the feeding accuracy of the bracket 001.

[0066] A process flow, wherein an automated oil rail assembly equipment employing any of the above embodiments adopts a working mode of five stations operating synchronously in parallel. The first to fifth stations are respectively: bracket loading station 101, copper ring loading station 102, rail body loading station 103, servo pressing station 104, and assembly clamping station 105. The process flow includes the following steps: Step S1, Preparation: Before starting the equipment, adjust the left linear guide rail 3034 and the right linear guide rail 3014 to their initial positions, so that they are above the work platform 1 and are aligned with the upper linear guide rail 3024 fixedly installed on the work platform 1. Then, arrange the five positioning fixtures 2 in sequence at the five positions of the upper traction mechanism 302 above the work platform 1, and define them as the first to fifth positioning fixtures 2 from right to left (it should be noted that only five positioning fixtures 2 are used as an example here. In actual production, at least one spare unloaded positioning fixture 2 can be arranged on the lower traction mechanism 304 located below the work platform 1). Pre-set the motion parameters of each motion mechanism through the electrical control PLC system to prepare for automatic assembly.

[0067] Step S2, First Parallel Operation: After the equipment is started, keep the first to fifth positioning fixtures 2 at the five workstations stationary. During the stationary period, perform the following parallel operations: At the bracket loading station 101, the bracket loading operation is performed: the bracket loading device 4 clamps the bracket to be assembled and places it on the first positioning fixture 2 located at the bracket loading station 101. At the copper ring feeding station 102, the copper ring 002 feeding operation is performed: the copper ring feeding device 5 places the copper ring 002 on the bracket on the second positioning fixture 2 that has been moved to the copper ring feeding station 102. At the rail loading station 103, the rail loading operation is performed: the rail loading device 6 places the rail on the copper ring on the third positioning fixture 2 that has been moved to the rail loading station 103. At the servo press-fit station 104, a press-fit operation is performed: the servo press-fit device 7 presses the rail body, bracket 001, and copper ring 002 on the fourth positioning fixture 2 that has been moved to the servo press-fit station 104 into one piece. At the assembly clamping station 105, the finished product removal operation is performed: the assembly clamping device 8 removes and transfers the finished oil rail that has been pressed into place on the fifth positioning fixture 2 at the assembly clamping station 105.

[0068] Step S3, First Unloaded Return: During parallel operation, the left slider 3038 of the left lifting mechanism 303 descends, causing the left linear guide rail 3034 to dock with the lower linear guide rail 3043. The lower double-sided toothed synchronous belt unit 3042 of the lower traction mechanism 304 transfers the fifth positioning fixture 2 (the oil rail has been removed and is in an unloaded state) located on the left linear guide rail 3034 from the left linear guide rail 3034 to the lower linear guide rail 3043. The lower traction mechanism 304 moves the unloaded fifth positioning fixture 2 along the X direction to the right lifting mechanism 301 to the position ready to enter the right lifting mechanism 301. At the same time, the left lifting mechanism 303 rises and resets, freeing up the assembly clamping station 105.

[0069] Step S4, First tooling forward movement: After the parallel operation is completed, the upper traction mechanism 302 drives the positioning tooling 2 on the first to fourth workstations above the work platform 1 to move forward one workstation synchronously from the support loading workstation 101 to the assembly clamping workstation 105. Specifically, the fourth positioning fixture 2 moves to the assembly clamping station 105, the third positioning fixture 2 moves to the servo pressing station 104, the second positioning fixture 2 moves to the rail body loading station 103, and the first positioning fixture 2 (with bracket installed) moves to the copper ring loading station 102.

[0070] Step S5, First Unloaded Tooling Replacement: Before the next parallel operation, the right slider 3018 of the right lifting mechanism 301 descends, causing the right linear guide rail 3014 to connect with the lower linear guide rail 3043. The lower double-sided toothed synchronous belt unit 3042 of the lower traction mechanism 304 transfers the fifth positioning tooling 2 (unloaded state) to the right linear guide rail 3014. Then the right linear guide rail 3014 rises and resets, and the unloaded fifth positioning tooling 2 is lifted to the support loading station 101 above the work platform 1.

[0071] Step S6, Second Parallel Operation: The positioning fixture 2 at each station remains stationary. During this stationary period, the following parallel operations are performed: At the bracket loading station 101, the bracket loading operation is performed: the bracket loading device 4 clamps the bracket to be assembled and places it on the fifth positioning fixture 2 located at the bracket loading station 101. At the copper ring feeding station 102, the copper ring feeding operation is performed: the copper ring feeding device 5 places the copper ring on the bracket on the first positioning fixture 2 that has been moved to the copper ring feeding station 102. At the rail loading station 103, the rail loading operation is performed: the rail loading device 6 places the rail on the copper ring on the second positioning fixture 2 that has been moved to the rail loading station 103. At the servo press-fit station 104, the press-fit operation is performed: the servo press-fit device 7 presses the rail body, bracket and copper ring on the third positioning fixture 2 that has been moved to the servo press-fit station 104 into one piece. At the assembly clamping station 105, the finished product removal operation is performed: the assembly clamping device 8 removes and transfers the finished oil rail that has been pressed into place on the fourth positioning fixture 2 at the assembly clamping station 105.

[0072] Step S7, Second Unloaded Return: During parallel operation, the left slider 3038 of the left lifting mechanism 303 descends, causing the left linear guide rail 3034 to dock with the lower linear guide rail 3043. The lower double-sided toothed synchronous belt unit 3042 of the lower traction mechanism 304 transfers the fourth positioning fixture 2 (the oil rail has been removed and is in an unloaded state) located on the left linear guide rail 3034 from the left linear guide rail 3034 to the lower linear guide rail 3043. The lower traction mechanism 304 moves the unloaded fourth positioning fixture 2 along the X direction to the right lifting mechanism 301 to the position ready to enter the right lifting mechanism 301. At the same time, the left lifting mechanism 303 rises and resets, freeing up the assembly clamping station 105.

[0073] Step S8, Second tooling forward movement: After the parallel operation is completed, the upper traction mechanism 302 drives the positioning tooling 2 on the first to fourth workstations above the work platform 1 to move forward one workstation synchronously from the support loading workstation 101 to the assembly clamping workstation 105. Specifically, the third positioning fixture 2 moves to the assembly clamping station 105, the second positioning fixture 2 moves to the servo pressing station 104, the first positioning fixture 2 (with bracket and copper ring installed) moves to the rail body loading station 103, and the fifth positioning fixture 2 (with bracket installed) moves to the copper ring loading station 102.

[0074] Step S9, Second Unloaded Tooling Replacement: Before the next parallel operation, the right slider 3018 of the right lifting mechanism 301 descends, causing the right linear guide rail 3014 to connect with the lower linear guide rail 3043. The lower double-sided toothed synchronous belt unit 3042 of the lower traction mechanism 304 transfers the fourth positioning tooling 2 (unloaded state) to the right linear guide rail 3014. Then the right linear guide rail 3014 rises and resets, and the unloaded fourth positioning tooling 2 is lifted to the support loading station 101 above the work platform 1.

[0075] Step S10, Third Parallel Operation: The positioning fixture 2 at each station remains stationary. During this stationary period, the following parallel operations are performed: At the bracket loading station 101, the bracket loading operation is performed: the bracket loading device 4 clamps the bracket to be assembled and places it on the fourth positioning fixture 2 located at the bracket loading station 101. At the copper ring feeding station 102, the copper ring feeding operation is performed: the copper ring feeding device 5 places the copper ring on the bracket on the fifth positioning fixture 2 that has been moved to the copper ring feeding station 102. At the rail loading station 103, the rail loading operation is performed: the rail loading device 6 places the rail on the copper ring on the first positioning fixture 2 that has been moved to the rail loading station 103. At the servo press-fitting station 104, a press-fitting operation is performed: the servo press-fitting device 7 presses the rail body, bracket and copper ring on the second positioning fixture 2 that has been moved to the servo press-fitting station 104 into one piece. At the assembly clamping station 105, the finished product removal operation is performed: the assembly clamping device 8 removes and transfers the finished oil rail that has been pressed into place on the third positioning fixture 2 at the assembly clamping station 105.

[0076] Step S11, Third Unloaded Return: During parallel operation, the left slider 3038 of the left lifting mechanism 303 descends, causing the left linear guide rail 3034 to dock with the lower linear guide rail 3043. The lower double-sided toothed synchronous belt unit 3042 of the lower traction mechanism 304 transfers the third positioning fixture 2 (the oil rail has been removed and is in an unloaded state) located on the left linear guide rail 3034 from the left linear guide rail 3034 to the lower linear guide rail 3043. The lower traction mechanism 304 moves the unloaded third positioning fixture 2 along the X direction to the right lifting mechanism 301 to the position ready to enter the right lifting mechanism 301. At the same time, the left lifting mechanism 303 rises and resets, freeing up the assembly clamping station 105.

[0077] Step S12, Third tooling forward movement: After the parallel operation is completed, the upper traction mechanism 302 drives the positioning tooling 2 on the first to fourth workstations above the work platform 1 to move forward one workstation synchronously from the support loading workstation 101 to the assembly clamping workstation 105. Specifically, the second positioning fixture 2 moves to the assembly clamping station 105, the first positioning fixture 2 (with the rail body, copper ring and bracket installed) moves to the servo pressing station 104, the fifth positioning fixture 2 (with the bracket and copper ring installed) moves to the rail body loading station 103, and the fourth positioning fixture 2 (with the bracket installed) moves to the copper ring loading station 102.

[0078] Step S13, Third Unloaded Tooling Replacement: Before the next parallel operation, the right slider 3018 of the right lifting mechanism 301 descends, causing the right linear guide rail 3014 to connect with the lower linear guide rail 3043. The lower double-sided toothed synchronous belt unit 3042 of the lower traction mechanism 304 transfers the third positioning tooling 2 (unloaded state) to the right linear guide rail 3014. Then the right linear guide rail 3014 rises and resets, and the unloaded third positioning tooling 2 is lifted to the support loading station 101 above the work platform 1.

[0079] Step S14, Fourth Parallel Operation: The positioning fixture 2 at each station remains stationary. During this stationary period, the following parallel operations are performed: At the bracket loading station 101, the bracket loading operation is performed: the bracket loading device 4 clamps the bracket to be assembled and places it on the third positioning fixture 2 located at the bracket loading station 101. At the copper ring feeding station 102, the copper ring feeding operation is performed: the copper ring feeding device 5 places the copper ring on the bracket on the fourth positioning fixture 2 that has been moved to the copper ring feeding station 102. At the rail loading station 103, the rail loading operation is performed: the rail loading device 6 places the rail on the copper ring on the fifth positioning fixture 2 that has been moved to the rail loading station 103. At the servo press-fitting station 104, a press-fitting operation is performed: the servo press-fitting device 7 presses the rail body, bracket and copper ring on the first positioning fixture 2 that has been moved to the servo press-fitting station 104 into one piece. At the assembly clamping station 105, the finished product removal operation is performed: the assembly clamping device 8 removes and transfers the oil rail finished product that has been pressed into place on the second positioning fixture 2 which has been moved to the assembly clamping station 105.

[0080] Step S15, Fourth Unloaded Return: During parallel operation, the left slider 3038 of the left lifting mechanism 303 descends, causing the left linear guide rail 3034 to dock with the lower linear guide rail 3043. The lower double-sided toothed synchronous belt unit 3042 of the lower traction mechanism 304 transfers the second positioning fixture 2 (the oil rail has been removed and is in an unloaded state) located on the left linear guide rail 3034 from the left linear guide rail 3034 to the lower linear guide rail 3043. The lower traction mechanism 304 moves the unloaded second positioning fixture 2 along the X direction to the right lifting mechanism 301 to the position ready to enter the right lifting mechanism 301. At the same time, the left lifting mechanism 303 rises and resets, freeing up the assembly clamping station 105.

[0081] Step S16, Fourth tooling forward movement: After the parallel operation is completed, the upper traction mechanism 302 drives the positioning tooling 2 on the first to fourth workstations above the work platform 1 to move forward one workstation synchronously from the support loading workstation 101 to the assembly clamping workstation 105. Specifically, the first positioning fixture 2 (the finished oil rail that has been pressed) moves to the assembly clamping station 105, the fifth positioning fixture 2 (the rail body, copper ring and bracket that have been installed) moves to the servo pressing station 104, the fourth positioning fixture 2 (the bracket and copper ring that have been installed) moves to the rail body loading station 103, and the third positioning fixture 2 (the bracket that has been installed) moves to the copper ring loading station 102.

[0082] Step S17, Fourth Unloaded Tooling Replacement: Before the next parallel operation, the right slider 3018 of the right lifting mechanism 301 descends, causing the right linear guide rail 3014 to connect with the lower linear guide rail 3043. The lower double-sided toothed synchronous belt unit 3042 of the lower traction mechanism 304 transfers the second positioning tooling 2 (unloaded state) to the right linear guide rail 3014. Then the right linear guide rail 3014 rises and resets, and the unloaded second positioning tooling 2 is lifted to the support loading station 101 above the work platform 1.

[0083] Step S18, Fifth Parallel Operation: The positioning fixture 2 at each station remains stationary. During this stationary period, the following parallel operations are performed: At the bracket loading station 101, the bracket loading operation is performed: the bracket loading device 4 clamps the bracket to be assembled and places it on the second positioning fixture 2 located at the bracket loading station 101. At the copper ring feeding station 102, the copper ring feeding operation is performed: the copper ring feeding device 5 places the copper ring on the bracket on the third positioning fixture 2 that has been moved to the copper ring feeding station 102. At the rail loading station 103, the rail loading operation is performed: the rail loading device 6 places the rail on the copper ring on the fourth positioning fixture 2 that has been moved to the rail loading station 103. At the servo press-fit station 104, the press-fit operation is performed: the servo press-fit device 7 presses the rail body, bracket and copper ring on the fifth positioning fixture 2 that has been moved to the servo press-fit station 104 into one piece. At the assembly clamping station 105, the finished product retrieval operation is performed: the assembly clamping device 8 removes and transfers the finished oil rail that has been pressed into place on the first positioning fixture 2 at the assembly clamping station 105.

[0084] Step S19, Fifth Unloaded Return: During parallel operation, the left slider 3038 of the left lifting mechanism 303 descends, causing the left linear guide rail 3034 to dock with the lower linear guide rail 3043. The lower double-sided toothed synchronous belt unit 3042 of the lower traction mechanism 304 transfers the first positioning fixture 2 (the oil rail has been removed and is in an unloaded state) located on the left linear guide rail 3034 to the lower linear guide rail 3043. The lower traction mechanism 304 moves the unloaded first positioning fixture 2 along the X direction to the right lifting mechanism 301 to the position ready to enter the right lifting mechanism 301. At the same time, the left lifting mechanism 303 rises and resets, freeing up the assembly clamping station 105.

[0085] Step S20, Fifth tooling forward movement: After the parallel operation is completed, the upper traction mechanism 302 drives the positioning tooling 2 on the first to fourth workstations above the work platform 1 to move forward one workstation synchronously from the support loading workstation 101 to the assembly clamping workstation 105. Specifically, the fifth positioning fixture 2 (the finished oil rail that has been pressed) moves to the assembly clamping station 105, the fourth positioning fixture 2 (the rail body, copper ring and bracket that have been installed) moves to the servo pressing station 104, the third positioning fixture 2 (the bracket and copper ring that have been installed) moves to the rail body loading station 103, and the second positioning fixture 2 (the bracket that has been installed) moves to the copper ring loading station 102.

[0086] Step S21, Fifth Unloaded Tooling Replacement: Before the next parallel operation, the right slider 3018 of the right lifting mechanism 301 descends, causing the right linear guide rail 3014 to connect with the lower linear guide rail 3043. The lower double-sided toothed synchronous belt unit 3042 of the lower traction mechanism 304 transfers the first positioning tooling 2 (unloaded state) to the right linear guide rail 3014. Then the right linear guide rail 3014 rises and resets, and the unloaded first positioning tooling 2 is lifted to the support loading station 101 above the work platform 1.

[0087] Step S22: Repeat steps S2 to S21 to achieve continuous automated assembly.

[0088] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An automated oil rail assembly device, characterized in that, include: The work platform (1) is provided with five workstations in sequence. The five workstations are the bracket loading workstation (101), the copper ring loading workstation (102), the rail loading workstation (103), the servo pressing workstation (104), and the assembly clamping workstation (105). Multiple positioning fixtures (2), one of the positioning fixtures (2) is set on each workstation; Tooling circulation device (3) is set on the work platform (1) and is used to drive multiple positioning tooling (2) to circulate between five work stations; A bracket loading device (4) is provided at the bracket loading station (101) for placing the bracket (001) on the positioning fixture (2) that has been moved to the bracket loading station (101). A copper ring feeding device (5) is provided at the copper ring feeding station (102) and is used to place the copper ring (002) on the bracket (001) on the positioning fixture (2) that has been moved to the copper ring feeding station (102); Rail body loading device (6) is set at the rail body loading station (103) and is used to place the rail body (003) on the copper ring (002) on the positioning fixture (2) that has been moved to the rail body loading station (103); Servo pressing device (7) is set at servo pressing station (104) and is used to press the rail (003) on the positioning fixture (2) that has been moved to servo pressing station (104) into a whole with the bracket (001) and the copper ring (002); The assembly clamping device (8) is set at the assembly clamping station (105) and is used to clamp the oil rail that is pressed into one piece on the positioning fixture (2) that has been moved to the assembly clamping station (105) and transfer it to the next station.

2. The automated oil rail assembly equipment according to claim 1, characterized in that, Each positioning fixture (2) includes: A movable component, comprising a movable slider (201) and a floating support plate (202), wherein the floating support plate (202) is disposed on the movable slider (201), and the floating support plate (202) is provided with a guide post (203), an anti-loosening bolt (204) and a support spring (205); The positioning assembly includes a bracket positioning base plate (206), a bracket positioning seat (207), and a copper sleeve (208). The bracket positioning base plate (206) is disposed on the floating support plate (202), and the bracket positioning base plate (206) and the floating support plate (202) are connected by the support spring (205). The bracket positioning seat (207) is disposed on the bracket positioning base plate (206) to support the bracket (001). The copper sleeve (208) is installed on the bracket positioning base plate (206). The guide post (203) passes through the copper sleeve (208) and slides with the copper sleeve (208). The anti-loosening bolt (204) passes through the bracket positioning base plate (206) and is connected to the floating support plate (202). The transmission assembly includes a rack mounting plate (209), an upper rack (210), a lower rack (211), and a rack baffle (212). The rack mounting plate (209) is mounted on one side of the bracket positioning base plate (206). The upper rack (210) and the lower rack (211) are respectively disposed at the upper and lower ends of the rack mounting plate (209). The rack baffle (212) is disposed at both ends of the rack mounting plate (209).

3. The automated oil rail assembly equipment according to claim 2, characterized in that, The bracket positioning seat (207) has multiple mounting slots (214), each mounting slot (214) is used to place a bracket (001). The mounting slot (214) is a blind hole or a through hole that penetrates the upper and lower surfaces of the bracket positioning seat (207). When the mounting slot (214) is a blind hole, the lower surfaces of the multiple mounting slots (214) are located on the same horizontal plane.

4. The automated oil rail assembly equipment according to claim 2, characterized in that, The working platform (1) is provided with a press-fit support side plate (213), which is arranged at the servo press-fit station (104) and located on the moving path of the positioning fixture (2). When the positioning fixture (2) moves to the servo press-fit station (104), the positioning fixture (2) is located between the opposite sides of the press-fit support side plate (213), and the upper surface of the floating support plate (202) is lower than the upper surface of the press-fit support side plate (213). When not press-fitting, the lower surface of the bracket positioning base plate (206) is higher than the upper surface of the press-fit support side plate (213). When press-fitting, the lower surface of the bracket positioning base plate (206) abuts against the upper surface of the press-fit support side plate (213).

5. The automated oil rail assembly equipment according to claim 4, characterized in that, The lower surface of the bracket positioning base plate (206) and the upper surface of the press-fit support side plate (213) have a first gap h1, the range of h1 being 0.7 to 1 mm; the upper surface of the floating support plate (202) and the lower surface of the bracket positioning base plate (206) have a second gap h2, the range of h2 being 1.5 to 1.8 mm; the copper sleeve (208) is installed on the bracket positioning base plate (206) by interference fit, and the guide post (203) and the copper sleeve (208) are in clearance fit, the clearance range being 0.03 mm to 0.05 mm.

6. The automated oil rail assembly equipment according to claim 1, characterized in that, The tooling circulation device (3) includes: Right lifting mechanism (301), which is set on the working platform (1), is used to lift an unloaded positioning fixture (2) from below the working platform (1) along the Z direction to the support loading station (101); The upper traction mechanism (302) is located at the upper end of the work platform (1) and is used to simultaneously drive the positioning fixtures (2) on the five workstations to move in the X direction from the support loading workstation (101) to the assembly clamping workstation (105). A left lifting mechanism (303) is provided on the work platform (1) for lowering an unloaded positioning fixture (2) along the Z direction from the assembly clamping station (105) to below the work platform (1); The lower traction mechanism (304) is located at the lower end of the working platform (1). At least one spare positioning fixture (2) is provided on the lower traction mechanism (304). The lower traction mechanism (304) is used to drive the spare positioning fixture (2) to move along the X direction from the left lifting mechanism (303) to the right lifting mechanism (301).

7. The automated oil rail assembly equipment according to claim 6, characterized in that, The right lifting mechanism (301) includes: a right fixed bracket (3011), a right linear motion mechanism body (3012), a right horizontal support (3013), a right linear guide rail (3014), a right contact sensor (3015), a right upper limit block (3016), a right lower limit block (3017), and a right slider (3018). The right fixed bracket (3011) is connected to the working platform (1), and the right linear motion mechanism body (3012) is mounted on the right fixed bracket (3011). The right upper limit block (3016) and the right lower limit block (3017) are respectively mounted on the upper part of the right linear motion mechanism body (3012). At the lower ends, the right slider (3018) is slidably disposed on the right linear motion mechanism body (3012) and located between the right upper limit block (3016) and the right lower limit block (3017). The right linear motion mechanism body (3012) is used to drive the right slider (3018) to reciprocate along the Z direction. The right horizontal support (3013) is connected to the right slider (3018). The right linear guide (3014) is disposed on the right horizontal support (3013) along the X direction. The right contact sensor (3015) is disposed on the right horizontal support (3013) and located at one end of the right linear guide (3014). The left lifting mechanism (303) includes: a left fixed bracket (3031), a left linear motion mechanism body (3032), a left horizontal support (3033), a left linear guide rail (3034), a left contact sensor (3035), a left upper limit block (3036), a left lower limit block (3037), and a left slider (3038). The left fixed bracket (3031) is connected to the working platform (1), and the left linear motion mechanism body (3032) is mounted on the left fixed bracket (3031). The left upper limit block (3036) and the left lower limit block (3037) are respectively mounted on the upper part of the left linear motion mechanism body (3032). At the lower ends, the left slider (3038) is slidably disposed on the left linear motion mechanism body (3032) and located between the left upper limit block (3036) and the left lower limit block (3037). The left linear motion mechanism body (3032) is used to drive the left slider (3038) to reciprocate along the Z direction. The left horizontal support (3033) is connected to the left slider (3038). The left linear guide (3034) is disposed on the left horizontal support (3033) along the X direction. The left contact sensor (3035) is disposed on the left horizontal support (3033) and located at one end of the left linear guide (3034). The upper traction mechanism (302) includes: a secondary positioning lever (3021), a CCD imaging component (3022), a precision positioning component (3023), an upper linear guide rail (3024), a first upper fixed bracket (3025), a second upper fixed bracket (3026), and an upper double-sided toothed synchronous belt unit (3027). The upper double-sided toothed synchronous belt unit (3027) is installed on the upper end of the work platform (1) through the first upper fixed bracket (3025) and the second upper fixed bracket (3026). The upper linear guide rail (3024) is set on the work platform (1) and located on one side of the upper double-sided toothed synchronous belt unit (3027). The right linear guide rail (3014) and the left linear guide rail (3034) can be respectively connected to the upper double-sided toothed synchronous belt unit (3027). The two ends of the upper linear guide (3024) are connected, and the secondary positioning paddle (3021) is set at the bracket loading station (101) and is used to abut against the two ends of the positioning fixture (2) located on it during the process of the right linear guide (3014) rising in the Z direction. The precision positioning component (3023) and the CCD imaging component (3022) are both set at the copper ring loading station (102). The precision positioning component (3023) is located on one side of the upper linear guide (3024) and is used to position the positioning fixture (2) that moves to the copper ring loading station (102). The CCD imaging component (3022) is used to take pictures of the copper ring (002) on the positioning fixture (2) located at the copper ring loading station (102). The lower traction mechanism (304) includes: a lower support plate (3041), a lower double-sided toothed synchronous belt unit (3042), a lower linear guide rail (3043), and a lower sensor (3044). The lower double-sided toothed synchronous belt unit (3042) is mounted on the lower end of the working platform (1) via the lower support plate (3041). The lower linear guide rail (3043) is arranged along the X direction on the lower support plate (3041) and located on one side of the lower double-sided toothed synchronous belt unit (3042). The right linear guide rail (3014) and the left linear guide rail (3034) can be respectively connected to the lower support plate (3041). The two ends of the linear guide (3043) are connected. The lower sensor (3044) is set on the lower support plate (3041) and located at the end of the lower linear guide (3043) near the right linear guide (3014). The lower rack (211) on the spare positioning fixture (2) meshes with the upper tooth of the lower double-sided toothed synchronous belt unit (3042). The lower double-sided toothed synchronous belt unit (3042) is used to drive the spare positioning fixture (2) to move along the X direction from the left linear guide (3034) through the lower linear guide (3043) to the right linear guide (3014).

8. The automated oil rail assembly equipment according to claim 1, characterized in that, The support loading device (4) includes a first double exchange storage component (401) and a first three-axis robot (402) set on the work platform (1). The first double exchange storage component (401) is used to supply the support (001), and the first three-axis robot (402) is used to transfer the support (001) on the first double exchange storage component (401) to the positioning fixture (2) of the support loading station (101). The copper ring feeding device (5) includes a vibratory feeder (501) and a second and third-axis manipulator (502) set on the working platform (1). The vibratory feeder (501) is used to arrange the copper rings (002) in a preset posture and transport them to the picking position. The second and third-axis manipulator (502) is used to transfer the copper rings (002) at the picking position to the bracket (001) on the positioning fixture (2) of the copper ring feeding station (102). The rail body loading device (6) includes a second double exchange storage component (601) and a third three-axis robot (602) set on the working platform (1). The second double exchange storage component (601) is used to supply the rail body (003), and the third three-axis robot (602) is used to transfer the rail body (003) on the second double exchange storage component (601) to the copper ring (002) on the positioning fixture (2) of the rail body loading station (103).

9. The automated oil rail assembly equipment according to claim 1, characterized in that, The servo press-fitting device (7) includes a servo press (701), a displacement sensor (702), a pressure sensor (703), and a press-fitting fixture (704). The servo press (701) is mounted on the work platform (1). The displacement sensor (702) and the pressure sensor (703) are both mounted on the servo press (701). The press-fitting fixture (704) is connected to the output end of the servo press (701) and is used to press the rail body (003) into the bracket (001) and the copper ring (002). The assembly clamping device (8) includes a fourth three-axis manipulator (801) and a pneumatic rotary gripper (802). The fourth three-axis manipulator (801) is mounted on the work platform (1), and the pneumatic rotary gripper (802) is mounted at the end of the fourth three-axis manipulator (801). The fourth three-axis manipulator (801) is used to drive the pneumatic rotary gripper (802) to move in the XYZ three-dimensional space. The pneumatic rotary gripper (802) is used to grip the press-fitted oil rail located at the assembly clamping station (105).

10. A process flow, characterized in that, The process flow of the automated oil rail assembly equipment as described in any one of claims 1-9 includes the following steps: Step S1, Preparation: Arrange five positioning fixtures (2) in sequence at the five work positions of the upper traction mechanism (302) above the work platform (1), and arrange at least one spare unloaded positioning fixture (2) on the lower traction mechanism (304) below the work platform (1), and preset the motion parameters of each device. Step S2, Parallel Operation: Keep each positioning fixture (2) at the five workstations stationary. During the stationary period, perform the following parallel operations: At the support loading station (101), the support loading operation is performed: the support loading device (4) places the support on the positioning fixture (2) that has been moved to the support loading station (101); At the copper ring feeding station (102), the copper ring feeding operation is performed: the copper ring feeding device (5) places the copper ring on the bracket on the positioning fixture (2) that has been moved to the copper ring feeding station (102); At the rail loading station (103), the rail loading operation is performed: the rail loading device (6) places the rail on the copper ring on the positioning fixture (2) that has moved to the rail loading station (103); At the servo press-fit station (104), the press-fit operation is performed: the servo press-fit device (7) presses the rail body, bracket and copper ring on the positioning fixture (2) that has been moved to the servo press-fit station (104) into one piece; At the assembly clamping station (105), the finished product removal operation is performed: the assembly clamping device (8) removes and transfers the oil rail finished product that has been pressed into place on the positioning fixture (2) that has been moved to the assembly clamping station (105); Step S3, Unloaded return: During the parallel operation, the left lifting mechanism (303) moves the unloaded positioning fixture (2) that has completed the picking of finished products at the assembly clamping station (105) to the lower traction mechanism (304) below the work platform (1). The lower traction mechanism (304) moves the unloaded positioning fixture (2) to the right lifting mechanism (301) along the X direction. Step S4, Tooling forward movement: After the parallel operation is completed, the upper traction mechanism (302) drives each positioning tool (2) above the work platform (1) to move forward one station synchronously in the direction from the support loading station (101) to the assembly clamping station (105); Step S5, Empty tooling replacement: Before the next parallel operation, the right lifting mechanism (301) lifts the empty positioning tool (2) conveyed from the lower traction mechanism (304) to the support loading station (101) above the work platform (1). Step S6, cyclic execution: Repeat steps S2 to S5, and through continuous step movement, make each positioning fixture (2) pass through five stations in sequence to achieve continuous automated assembly.

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