Directional flaring stamping mechanism and stamping method for automobile spraying pipe

Abstract

The invention relates to the technical field of pipe fitting machining, in particular to an automobile spraying pipe directional flaring punching mechanism and a punching method, and the automobile spraying pipe directional flaring punching mechanism comprises a double-head punching mechanism and a directional mechanism; the double-head stamping mechanism comprises a flaring stamping die, a forming stamping die, a switching mechanism and a stamping device, and the switching mechanism is used for switching the flaring stamping die and the forming stamping die to correspond to the stamping device; the orienting mechanism comprises an adjusting plate, an orienting plate, an orienting clamping mechanism and a synchronous adjusting structure, an orienting hole with the horizontal axis is formed in the middle of the orienting plate, the orienting plate can be pushed by the stamping device when the flaring stamping die is located in the orienting hole, and the orienting clamping mechanism comprises a plurality of clamping structures; the multiple clamping structures are arranged on the orientation plate at equal intervals around the orientation hole, and the synchronous adjusting structure is used for connecting the orientation plate and the adjusting plate; the double-end punching mechanism and the orientation mechanism are arranged, so that the axis collinear control of the whole process from positioning, flaring to forming is realized, and accumulated errors among the processes are eliminated.

Description

Technical Field

[0001] This invention relates to the field of pipe processing technology, specifically to a directional flaring stamping mechanism for automotive sprinkler pipes, and also to a stamping method. Background Technology

[0002] In the automotive manufacturing industry, spray pipes are key components of engine cooling systems and air conditioning systems. The flaring and forming precision of their ends directly affect the sealing performance and assembly reliability of the pipe connections. Currently, the industry mainly uses a traditional step-by-step stamping process for processing automotive spray pipes. This involves first fixing the spray pipe manually or with simple tooling, and then using a single die to complete the flaring and forming processes sequentially.

[0003] Patent application publication number CN120480009A discloses a device and method for selecting the direction of a double-headed upset saddle for a spray pipe of a new energy vehicle drive motor. The device coordinates the work of each component through a control system. The hopper component stores the pipes to be processed and discharges them one by one. The receiving component receives the pipes and moves them to the detection position. The rotation and orientation component rotates the pipes to the target angle state according to the position of the spray holes on the pipes. The waiting component moves the oriented pipes to the waiting position. The material transfer robot grabs the pipes and transports them to the stamping component. The stamping component clamps the pipes with a clamping die. The die-changing mechanism switches between the flaring die and the saddle forming die. Under the drive of the stamping cylinder, the flaring of both ends of the pipes and the saddle structure forming are completed in sequence, realizing the automated operation of spray pipe processing.

[0004] Although the above solution achieves automated stamping of spray pipes, it still has shortcomings in scenarios requiring high precision. It is difficult to ensure that the axis of the spray pipe and the axis of the die are always precisely collinear. In particular, when there is a deviation in the initial positioning of the spray pipe, it is easy to cause the relative position of the die and the spray pipe to shift. In terms of eliminating process errors, the stamping components of the above solution lack the radial limiting effect of the impact die. The die is prone to shifting during the stamping process due to factors such as equipment vibration and the reaction force of the spray pipe. It is impossible to achieve full-process axis collinearity control from positioning, flaring to forming, and the cumulative error between processes is difficult to eliminate. Summary of the Invention

[0005] To address the aforementioned issues, a directional flaring stamping mechanism for automotive spray pipes is provided. By incorporating a double-headed stamping mechanism and a directional mechanism, the mechanism achieves full-process axial collinearity control from positioning and flaring to forming, thereby eliminating cumulative errors between processes.

[0006] To address the problems of existing technologies, this invention provides a directional flaring stamping mechanism for automotive spray pipes, comprising a double-head stamping mechanism and a directional mechanism. The double-head stamping mechanism includes a flaring die, a forming die, a switching mechanism, and a stamper. Both the flaring die and the forming die are mounted on the switching mechanism, which selectively moves either the flaring die or the forming die to a working position coaxial with the stamper. The directional mechanism includes an adjusting plate and a directional plate that can translate in two mutually perpendicular directions in a vertical plane, a directional clamping mechanism, and a synchronous adjustment structure. The adjusting plate and the directional plate are arranged parallel to each other, and the double-head stamping mechanism is positioned between the adjusting plate and the directional plate. A directional hole with a horizontal axis is provided in the middle of the directional plate. When the flaring die is within the directional hole, the directional plate can be pushed by the stamper. The directional clamping mechanism includes multiple clamping structures that are equally spaced around the directional hole on the directional plate. The synchronous adjustment structure connects the directional plate and the adjusting plate.

[0007] Preferably, the directional plate has multiple first grooves pointing to the center of the directional hole, and multiple clamping structures correspond to the multiple first grooves respectively. The clamping structure includes a clamping arm and a first guide rod; one end of the clamping arm is slidably connected to the first groove; the axis of the first guide rod points to the center of the directional hole and is slidably connected to the clamping arm.

[0008] Preferably, the orientation clamping mechanism further includes a clamping drive structure, which includes a drive plate and a rotary drive assembly; the drive plate has a central hole coaxial with the orientation hole, and a plurality of second sliding grooves are provided around the central hole, with the clamping arm slidably connected to the second sliding grooves; the rotary drive assembly is used to drive the drive plate to rotate around the orientation hole.

[0009] Preferably, the switching mechanism includes a rotating shaft, a frame, and two mounting seats; the rotating shaft is connected to the adjusting plate via bearings; the middle part of the frame is connected to the rotating shaft, and two symmetrical sliding holes about the rotating shaft are provided on the frame; the two mounting seats are used to install the flaring die and the forming die respectively, and are slidably arranged in the two sliding holes respectively.

[0010] Preferably, the switching mechanism further includes two magnetic fixing components, which are respectively disposed in two sliding holes on the frame. The magnetic fixing components exert an attractive force on the mounting base to fix the mounting base on the frame.

[0011] Preferably, the dual-head stamping mechanism further includes a magnetic docking assembly for fixing the mounting base and the stamper together.

[0012] Preferably, the synchronous adjustment structure includes a first synchronous component, which is slidably connected to the directional plate and the adjustment plate, so that the directional plate can move in a direction perpendicular to the adjustment plate.

[0013] Preferably, the synchronization adjustment structure further includes a second synchronization component, which is slidably connected to the directional plate and the rotating shaft.

[0014] Preferably, the clamping structure further includes an abutment claw and a sliding guide assembly; the abutment claw is disposed on the inner side of the clamping arm; the sliding guide assembly is disposed on the clamping arm and is used to slide the abutment claw and the clamping arm.

[0015] A stamping method, applied to a directional flaring stamping mechanism for an automotive spray pipe, includes the following steps: S1. The spray pipe to be stamped is fixed on the side of the double-head stamping mechanism, and multiple clamping mechanisms move towards the spray pipe at the same speed from all sides of the spray pipe. S2. When multiple clamping mechanisms are in contact with the outer wall of the spray pipe, the axis of the directional hole of the directional plate is collinear with the axis of the spray pipe, and the adjusting plate moves synchronously with the directional plate under the drive of the synchronous adjusting structure. S3. The switching mechanism adjusts the flaring die to the corresponding orientation hole; S4. The punch pushes the flaring die toward the spray pipe. When the flaring die enters the directional hole, the punch contacts the directional plate and pushes the directional plate and the flaring die to move synchronously. S5. After the flaring is completed, the switching mechanism will switch the forming die to the corresponding directional hole; S6. The stamper pushes the forming die toward the spray pipe. When the forming die enters the directional hole, the stamper pushes the directional plate and the forming die to move synchronously.

[0016] The advantages of this invention compared to the prior art are: 1. This invention relates to a double-headed stamping mechanism and an orienting mechanism. Multiple clamping structures in the orienting mechanism operate synchronously and, through reaction force, push the orienting plate for slight adjustment. Combined with a synchronous adjustment structure, the adjustment plate moves synchronously with the orienting plate, achieving collinearity between the spray pipe and the orienting hole. This establishes an axial reference for subsequent processing. The switching mechanism in the double-headed stamping mechanism switches between the flaring die and the forming die. Because the orienting hole and the spray pipe are already collinear, it ensures that the axes of the two dies and the spray pipe are collinear, guaranteeing axial consistency during process switching. When the stamper is working, it pushes the die and the orienting plate to move synchronously. The orienting hole always acts as a radial limiter for the die, ensuring that the die remains collinear with the spray pipe axis during stamping, avoiding processing offset. This achieves full-process axial collinearity control from positioning and flaring to forming, eliminating cumulative errors between processes.

[0017] 2. This invention provides a clamping arm and a first guide rod, and opens multiple first grooves pointing to the directional holes on the directional plate. The first grooves provide a basic trajectory for the clamping arm to move toward the center of the directional holes. The first guide rod passes through the clamping arm and forms a double constraint on its movement direction, which restricts the translation of the clamping arm along the direction parallel to the axis of the first guide rod and prevents the clamping arm from rotating, ensuring that the clamping arm always approaches the spray pipe in a translational posture. When multiple clamping arms abut against the outer wall of the spray pipe, the distance between each clamping arm and the axis of the spray pipe is exactly the same, thereby ensuring that the directional holes and the axis of the spray pipe can be stably collinear after each clamping calibration.

[0018] 3. The present invention is provided with a clamping drive structure. The second slide groove on the drive plate and the first slide groove on the guide plate work together to provide power and guidance for the clamping arms, so that multiple clamping arms can move synchronously toward or away from the spray pipe. The movement of multiple clamping arms is driven by the same drive plate, thereby ensuring that the force of each clamping arm is uniform when it contacts the outer wall of the spray pipe. Attached Figure Description

[0019] Figure 1 This is a perspective view of a directional flaring stamping mechanism for an automotive spray pipe, as described in this invention application.

[0020] Figure 2 This is a top view of a directional flaring stamping mechanism for an automotive spray pipe, as described in this invention application.

[0021] Figure 3 yes Figure 2 A three-dimensional sectional view at point AA.

[0022] Figure 4 This is a perspective view of the rotating shaft, adjusting plate, directional plate, clamping structure, clamping drive structure, and synchronous adjustment structure in the directional flaring stamping mechanism for automotive spray pipes according to this invention application.

[0023] Figure 5 This is a perspective view of the directional plate, clamping arm, first guide rod, abutment claw, sliding guide assembly, and clamping drive assembly in a directional flaring stamping mechanism for an automotive spray pipe according to this invention application.

[0024] Figure 6 This is a perspective view of the directional plate, clamping arm, drive plate, linear driver, fixed shaft and transmission plate in a directional flaring stamping mechanism for an automotive spray pipe according to this invention application.

[0025] Figure 7 This is a perspective view of the flaring die, forming die, switching mechanism, stamper, and adjusting plate in a directional flaring stamping mechanism for an automotive spray pipe according to this invention application.

[0026] Figure 8 This is a perspective view of the frame, mounting base, and magnetic fixing assembly in a directional flaring and stamping mechanism for an automotive spray pipe according to this invention application.

[0027] Figure 9 This is a perspective view of the mounting base, stamper, second magnetic block, and third magnetic block in a directional flaring stamping mechanism for an automotive spray pipe according to this invention application.

[0028] Figure 10 This is a perspective view of the rotating shaft, adjusting plate, directional plate, first synchronization component, and second synchronization component in the directional flaring stamping mechanism for an automotive spray pipe according to this invention application.

[0029] Figure 11 This is a perspective view of the directional plate, clamping arm, clamping claw, and sliding guide assembly in a directional flaring stamping mechanism for an automotive spray pipe according to this invention application.

[0030] The diagram is labeled as follows: 1. Double-headed stamping mechanism; 11. Flaring die; 12. Forming die; 13. Switching mechanism; 131. Rotating shaft; 132. Frame; 133. Mounting base; 134. Magnetic fixing assembly; 1341. Magnetic fixing ring; 1342. First magnetic block; 14. Stamper; 15. Magnetic docking assembly; 151. Second magnetic block; 152. Third magnetic block; 2. Orientation mechanism; 21. Adjusting plate; 22. Orientation plate; 221. Orientation hole; 222. First slide groove; 23. Clamping structure; 231. Clamping arm; 232. First guide rod; 23 3. Abutting claw; 234. Sliding guide assembly; 2341. Second guide rod; 2342. First spring; 24. Clamping drive structure; 241. Drive plate; 2411. Center hole; 2412. Second slide groove; 242. Rotary drive assembly; 2421. Linear actuator; 2422. Fixed shaft; 2423. Transmission plate; 25. Synchronization adjustment structure; 251. First synchronization assembly; 2511. Third guide rod; 2512. Limit sleeve; 2513. Second spring; 252. Second synchronization assembly; 2521. Connecting seat; 2522. Guide sleeve. Detailed Implementation

[0031] To further understand the features, technical means, and specific objectives and functions achieved by this invention application, the invention application will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0032] Reference Figures 1 to 11As shown: A directional flaring stamping mechanism for automotive spray pipes includes a double-head stamping mechanism 1 and a directional mechanism 2. The double-head stamping mechanism 1 includes a flaring die 11, a forming die 12, a switching mechanism 13, and a stamper 14. Both the flaring die 11 and the forming die 12 are mounted on the switching mechanism 13, which is used to selectively move either the flaring die 11 or the forming die 12 to a working position coaxial with the stamper 14. The directional mechanism 2 includes an adjusting plate 21, a directional plate 22, and a directional clamping mechanism that can translate in two mutually perpendicular directions in a vertical plane. The synchronous adjustment structure 25, the adjustment plate 21 and the directional plate 22 are arranged parallel to each other, and the double-headed stamping mechanism 1 is arranged between the adjustment plate 21 and the directional plate 22. The directional plate 22 has a horizontally oriented hole 221 in the middle. When the flared die 11 is in the directional hole 221, the directional plate 22 can be pushed by the stamper 14. The directional clamping mechanism includes multiple clamping structures 23, which are arranged at equal intervals around the directional hole 221 on the directional plate 22. The synchronous adjustment structure 25 is used to connect the directional plate 22 and the adjustment plate 21.

[0033] First, the spray pipe to be stamped is horizontally fixed to the side of the double-head stamping mechanism 1, ensuring that the end of the spray pipe to be processed faces the orientation hole 221 of the orientation plate 22. At this time, there may be a certain deviation between the axis of the spray pipe and the axis of the orientation hole 221. Next, the orientation clamping mechanism is started, and multiple clamping structures 23 move synchronously towards the outer wall of the spray pipe from all sides at the same speed. During the contact process between the clamping structure 23 and the outer wall of the spray pipe, if the axis of the spray pipe is not collinear with the axis of the orientation hole 221, the clamping structure 23 that contacts first will be subjected to the reaction force of the spray pipe. This force pushes the orientation plate 22 to produce a slight displacement in the horizontal and vertical directions. Since the adjusting plate 21 is connected to the orientation plate 22 through the synchronous adjusting structure 25, the adjusting plate 21 will move synchronously with the orientation plate 22. The process continues until all clamping structures 23 are in tight contact with the outer wall of the spray pipe. At this point, the axis of the orientation hole 221 of the orientation plate 22 is completely collinear with the axis of the spray pipe under the adaptive adjustment of the clamping claws, completing the orientation calibration of the spray pipe. Then, the switching mechanism 13 is activated, first switching the flaring die 11 to a position coaxially aligned with the orientation hole 221 on the orientation plate 22. At this point, the axis of the flaring die 11 is also collinear with the axis of the spray pipe because the orientation hole 221 is collinear with the axis of the spray pipe. Then, the press 14 starts working, and its output end generates a horizontal thrust acting on the flaring die 11, pushing the flaring die 11 toward the end of the spray pipe to be processed. When the front end of the flaring die 11 enters the orientation hole 221 of the orientation plate 22, the output end of the press 14... When the flaring die 11 contacts the guide plate 22, the thrust of the punch 14 acts simultaneously on the flaring die 11 and the guide plate 22, causing the guide plate 22 and the flaring die 11 to move synchronously toward the spray pipe. During the process of the flaring die 11 being inserted into the end of the spray pipe to be processed, the guide hole 221 on the guide plate 22 always acts as a radial limit for the flaring die 11, strictly limiting the offset of the flaring die 11 and ensuring that the axis of the flaring die 11 remains collinear with the axis of the spray pipe. After the flaring process is completed, the switching mechanism 13 is restarted, switching the forming die 12 to a position coaxially aligned with the guide hole 221. At this time, the axis of the forming die 12 is also collinear with the axis of the spray pipe. The punch 14 is restarted, outputting thrust to push the forming die 12 toward the flared end of the spray pipe. When the forming die... When the front end of the die 12 enters the orienting hole 221, the output end of the stamper 14 contacts the orienting plate 22, causing the orienting plate 22 and the forming die 12 to move synchronously toward the spray pipe. The orienting hole 221 continues to provide radial limiting for the forming die 12, preventing the forming die 12 from shifting during the stamping process. The forming die 12 gradually contacts the flared end of the spray pipe, and the flared end is stamped and shaped by the preset forming structure. Finally, the multiple clamping structures 23 of the orienting clamping mechanism move synchronously in opposite directions to release the spray pipe, completing the orienting flaring and stamping forming process of the entire spray pipe. Through the adaptive adjustment of the orienting mechanism 2 and the switching of the double-head stamping mechanism 1, the entire process axis collinear control from positioning, flaring to forming is realized, eliminating the cumulative error between each process.

[0034] Reference Figure 3 , Figure 4 and Figure 5 As shown: The directional plate 22 has a plurality of first grooves 222 pointing to the center of the directional hole 221. A plurality of clamping structures 23 correspond to the plurality of first grooves 222 respectively. The clamping structure 23 includes a clamping arm 231 and a first guide rod 232. One end of the clamping arm 231 is slidably connected to the first groove 222. The axis of the first guide rod 232 points to the center of the directional hole 221 and is slidably connected to the clamping arm 231.

[0035] When the directional clamping mechanism is working, the clamping arm 231 moves along the first slide groove 222 toward the center of the directional hole 221. During the movement of the clamping arm 231 along the first slide groove 222, the first guide rod 232 always passes through the clamping arm 231, forming a double constraint on the movement direction of the clamping arm 231. This restricts the translation of the clamping arm 231 along the axis parallel to the first guide rod 232, and also prevents the clamping arm 231 from rotating, ensuring that the clamping arm 231 always faces the spray hole in a translational posture. When the spray pipe moves, and multiple clamping arms 231 abut against the outer wall of the spray pipe, each clamping arm 231 moves along a trajectory pointing to the center of the directional hole 221 under the constraint of the first guide rod 232. The distance between each clamping arm 231 and the axis of the spray pipe is exactly the same. At this time, under the action of multiple clamping arms 231, the axis of the spray pipe is completely collinear with the axis of the directional hole 221, thereby ensuring that the directional hole 221 and the axis of the spray pipe can be stably collinear after each clamping calibration.

[0036] Reference Figure 5 and Figure 6 As shown: The orientation clamping mechanism also includes a clamping drive structure 24, which includes a drive plate 241 and a rotary drive assembly 242; the drive plate 241 has a central hole 2411 coaxial with the orientation hole 221, and a plurality of second sliding grooves 2412 are provided around the central hole 2411, and the clamping arm 231 is slidably connected to the second sliding grooves 2412; the rotary drive assembly 242 is used to push the drive plate 241 to rotate around the orientation hole 221.

[0037] Specifically, the rotary drive assembly 242 includes a linear actuator 2421, a fixed shaft 2422, and a transmission plate 2423. The linear actuator 2421 is disposed on one side of the orientation plate 22. The axis of the fixed shaft 2422 is parallel to the axis of the central hole 2411 of the drive plate 241, and the fixed shaft 2422 is fixedly connected to the drive plate 241. The transmission plate 2423 is connected to the linear actuator 2421. A third sliding groove is provided on the transmission plate 2423, and the transmission plate 2423 is slidably connected to the fixed shaft 2422 through the third sliding groove.

[0038] When multiple clamping arms 231 need to be driven to clamp the spray pipe, the linear actuator 2421 pushes the transmission plate 2423 to translate. During the translation process, the transmission plate 2423, through the sliding engagement between the third slide groove and the fixed shaft 2422, pushes the drive plate 241 to rotate around the central hole 2411. During the rotation of the drive plate 241, multiple second slide grooves 2412 on it rotate synchronously with the drive plate 241. Since the clamping arms 231 are simultaneously constrained by the first slide groove 222 of the guide plate 22, the rotation of the second slide groove 2412 will apply a thrust towards the center of the guide hole 221 to the clamping arms 231. Under the combined action of the guidance of the first slide groove 222 and the thrust of the second slide groove 2412, multiple clamping arms 231 move synchronously towards the spray pipe along the first slide groove 222 until the clamping arms 231 are in close contact with the outer wall of the spray pipe, completing the process. During the clamping action, because all the second slides 2412 are evenly distributed around the central hole 2411 of the drive plate 241, and the rotational angular velocity of the drive plate 241 is uniform, the moving speed of each clamping arm 231 is completely consistent, ensuring that they approach the spray pipe synchronously. When it is necessary to drive multiple clamping arms 231 away from the spray pipe, the linear actuator 2421 pushes the transmission plate 2423 to translate in the direction, the drive plate 241 rotates in the opposite direction, and the second slides 2412 rotate synchronously with the drive plate 241. Under the guidance and constraint of the first slide 222, multiple clamping arms 231 move synchronously in the opposite direction along the first slide 222, away from the outer wall of the spray pipe, until they return to the initial clamping position and complete the release action. By driving multiple clamping arms 231 to move through the same drive plate 241, it is ensured that the force of each clamping arm 231 when in contact with the outer wall of the spray pipe is uniform.

[0039] Reference Figure 3 and Figure 7 As shown: The switching mechanism 13 includes a rotating shaft 131, a frame 132 and two mounting seats 133; the rotating shaft 131 is connected to the adjusting plate 21 through a bearing; the middle part of the frame 132 is connected to the rotating shaft 131, and two sliding holes symmetrical about the rotating shaft 131 are opened on the frame 132; the two mounting seats 133 are used to install the flaring die 11 and the forming die 12 respectively, and are slidably arranged in the two sliding holes respectively.

[0040] When the spray pipe needs to be flared, the rotating shaft 131 rotates 180 degrees around its own axis, and the frame 132 rotates 180 degrees synchronously with the rotating shaft 131, causing the two mounting seats 133 and the corresponding punches to move in a circular motion around the axis of the rotating shaft 131. During the rotation, because the two sliding holes are symmetrical about the rotating shaft 131, the mounting seat 133 for mounting the flaring punch 11 will rotate from its initial position to a position coaxially aligned with the orienting hole 221 of the orienting plate 22, completing the punch switching. After the flaring punch 11 is aligned with the orienting hole 221, the stamping press 14 applies a horizontal thrust to the mounting seat 133 for mounting the flaring punch 11. Under the action of the thrust, the mounting seat 133 slides along the sliding hole toward the orienting plate 22, causing the flaring punch 11 to move synchronously. The flaring punch 11 punches out a reference opening that meets the size requirements at the end of the spray pipe. When forming processing is required, the rotating shaft 131 rotates in the opposite direction around its own axis. The frame 132 rotates 180 degrees in the opposite direction synchronously with the rotating shaft 131. The mounting base 133 for the forming die 12 rotates to a position coaxially aligned with the directional hole 221 of the directional plate 22, realizing the switching from the flaring die 11 to the forming die 12. The press 14 starts again, and its output end applies a horizontal thrust to the mounting base 133 for the forming die 12. The mounting base 133 slides along the sliding hole of the frame 132 toward the directional plate 22, driving the forming die 12 through the clearance hole of the adjusting plate 21 and into the directional hole 221, contacting the flared end of the spray pipe, and completing the stamping forming process. The switching mechanism 13 can complete the position exchange of the two dies by rotating the frame 132 180 degrees through the rotating shaft 131. The switching time is short, thereby reducing the die switching time, improving the overall efficiency of spray pipe flaring and forming processing, and shortening the processing cycle of a single workpiece.

[0041] Reference Figure 3 , Figure 7 and Figure 8 As shown: The switching mechanism 13 also includes two magnetic fixing components 134. The two magnetic fixing components 134 are respectively disposed in two sliding holes on the frame 132. The magnetic fixing components 134 generate a magnetic force on the mounting base 133 to fix the mounting base 133 on the frame 132.

[0042] Specifically, the magnetic fixing assembly 134 includes a magnetic fixing ring 1341 and a plurality of first magnetic blocks 1342. The magnetic fixing ring 1341 is disposed at the end of the mounting base 133, and the plurality of first magnetic blocks 1342 are disposed on the frame 132, and the plurality of first magnetic blocks 1342 are equally spaced around the axis of the magnetic fixing ring 1341.

[0043] With the switching mechanism 13 not in operation, the two mounting seats 133 are located in the two sliding holes of the frame 132, and their respective magnetic retaining rings 1341 are directly opposite the first magnetic blocks 1342 around the corresponding sliding holes. The magnetic field generated by the first magnetic blocks 1342 forms a stable attraction force on the magnetic retaining rings 1341, fixing the mounting seats 133 to the frame 132. When the press 14 applies a horizontal thrust to the mounting seats 133, if the thrust is greater than the maximum attraction force of the first magnetic blocks 1342 on the magnetic retaining rings 1341, the mounting seats 133 overcome the magnetic attraction force and begin to move along the sliding holes of the frame 132 towards... Sliding towards the guide plate 22, when the punch 14 pulls the mounting base 133 back to its initial position along the sliding hole, the mounting base 133 drives the magnetic fixing ring 1341 to move in the opposite direction synchronously. As the distance between the magnetic fixing ring 1341 and the first magnetic block 1342 gradually decreases, the attraction force of the first magnetic block 1342 on the magnetic fixing ring 1341 gradually recovers, and finally fixes the mounting base 133 on the frame 132 again. The magnetic fixing assembly 134 fixes the mounting base 133 on the frame 132 through the attraction force between the first magnetic block 1342 and the magnetic fixing ring 1341, thereby preventing the mounting base 133 from sliding along the sliding hole.

[0044] Reference Figure 3 and Figure 9 As shown: The double-headed stamping mechanism 1 also includes a magnetic docking assembly 15, which is used to fix the mounting base 133 and the stamper 14.

[0045] Specifically, the magnetic attraction assembly 15 includes a second magnetic block 151 and two third magnetic blocks 152. The second magnetic block 151 is connected to the output end of the punch 14, and the two third magnetic blocks 152 are respectively disposed at the ends of the two mounting bases 133, and the magnetism of the second magnetic block 151 is opposite to that of the third magnetic block 152.

[0046] The press 14 needs to both move the mounting base 133 horizontally and reset it. Since the press 14 needs to constantly connect and disconnect from the mounting base 133, a magnetic docking assembly 15 is provided. When the output end of the press 14 moves horizontally towards the target mounting base 133, the second magnetic block 151 fixed to the output end moves accordingly. As the output end of the press 14 gradually approaches the mounting base 133, the second magnetic block 151 and the third magnetic block 152 on the mounting base 133... As the distance between them decreases, the magnetic attraction between them due to their opposite polarities gradually strengthens. When the output end of the stamping die 14 moves to contact the end of the mounting base 133, the second magnetic block 151 and the third magnetic block 152 are completely attached. The magnetic attraction firmly attracts the mounting base 133 and the output end of the stamping die 14 together, forming a rigid connection between the stamping die 14 and the mounting base 133. When the stamping die completes the stamping, the output end of the stamping die 14 moves horizontally away from the guide plate 22. At this time, the second magnetic block 151... The magnetic attraction between block 151 and the third magnetic block 152 remains stable, causing the mounting base 133 to slide in the opposite direction along the sliding hole with the output end of the stamper 14, gradually moving away from the guide plate 22. When the mounting base 133 slides back to its initial position, the side of the mounting base 133 closest to the frame 132 contacts the surface of the frame 132. The frame 132 generates a rigid blocking force on the mounting base 133, restricting the mounting base 133 from continuing to move. At this time, the position of the mounting base 133 is fixed by the frame 132 and cannot move with the stamper. As the output end of the press 14 moves further in the reverse direction, the relative positions between the second magnetic block 151 and the third magnetic block 152 begin to separate, the magnetic attraction connection is broken, and the output end of the press 14 continues to move to the initial reset position, waiting for the next magnetic attraction connection action. The mounting base 133 remains in the initial position under the obstruction of the frame 132. The magnetic attraction connection assembly 15 realizes the rapid connection between the press 14 and the mounting base 133 through magnetic attraction, thereby greatly shortening the connection time between the press 14 and the mounting base 133.

[0047] Reference Figure 3 , Figure 4 and Figure 10 As shown: The synchronous adjustment structure 25 includes a first synchronous component 251, which is slidably connected to the directional plate 22 and the adjustment plate 21, so that the directional plate 22 can move in a direction perpendicular to the adjustment plate 21.

[0048] Specifically, the first synchronization component 251 includes a plurality of third guide rods 2511, which are parallel to each other and perpendicular to the adjusting plate 21. One end of the third guide rod 2511 is connected to the directional plate 22, and the other end of the third guide rod 2511 passes through the adjusting plate 21 and is slidably connected to the adjusting plate 21. The third guide rod 2511 is fitted with a limiting sleeve 2512 and a second spring 2513. The limiting sleeve 2512 is fitted in the middle of the third guide rod 2511 and is used to control the shortest distance between the directional plate 22 and the adjusting plate 21. The second spring 2513 is fitted at the end of the third guide rod 2511 and is used to provide a pulling force to the directional plate 22 toward the adjusting plate 21.

[0049] After the stamping press 14 completes the magnetic docking with the mounting base 133, and pushes the die (such as the flaring die 11) into the directional hole 221 of the directional plate 22 and into contact with the directional plate 22, it is necessary to further push the directional plate 22 and the die to move synchronously to complete the stamping. At this time, the output end of the stamping press 14 continuously applies a horizontal thrust, which is transmitted to the directional plate 22 through the die, so that the directional plate 22 overcomes the tension of the second spring 2513 and moves in a direction away from the adjusting plate 21. When the directional plate 22 moves, it synchronously drives all the third guide rods 2511 to move along the axial direction. The third guide rods 2511 slide relative to the adjusting plate 21, and the second spring 2513 sleeved on the end of the third guide rod 2511 is further compressed. The second spring 2513 gradually stores elastic potential energy. When the die completes the stamping, the stamping press 14... When the mounting base 133 and the die are reversed and reset, the second spring 2513 releases its elastic potential energy to push the third guide rod 2511 to move in the opposite direction along the axis, thereby driving the guide plate 22 to move toward the adjustment plate 21. When the guide plate 22 is reset and moves to contact the limit sleeve 2512, the limit sleeve 2512 prevents the guide plate 22 from moving further toward the adjustment plate 21, and the guide plate 22 and the adjustment plate 21 return to their initial fixed distance. The guide plate 22 and the adjustment plate 21 are connected by multiple parallel third guide rods 2511, so that the guide plate 22 can move synchronously along the axis of the die under the push of the presser 14, and all the third guide rods 2511 move synchronously to avoid the guide plate 22 from tilting, thereby ensuring that the axis of the die is always collinear with the axis of the spray pipe during the movement, without any offset or skew.

[0050] Reference Figure 3 , Figure 4 and Figure 10 As shown: The synchronous adjustment structure 25 also includes a second synchronous component 252, which is slidably connected to the directional plate 22 and the rotating shaft 131.

[0051] Specifically, the second synchronization component 252 includes a connecting seat 2521 and a guide sleeve 2522. The connecting seat 2521 is connected to the directional plate 22, and the guide sleeve 2522 is sleeved on the end of the rotating shaft 131. One end of the guide sleeve 2522 is connected to the connecting seat 2521 through a bearing.

[0052] Under the thrust of the stamping press 14, the directional plate 22 moves horizontally. The connecting seat 2521 moves horizontally synchronously with the directional plate 22. The horizontal movement of the connecting seat 2521 drives the guide sleeve 2522 connected to its end by the bearing to move together. During this process, the rotating shaft 131 provides an upward support force for the guide sleeve 2522. This support force is transmitted to the connecting seat 2521 through the guide sleeve 2522 and the bearing, and then transmitted to the directional plate 22 by the connecting seat 2521 to counteract the weight of the directional plate 22 itself. The third guide rod 2511 in the first synchronization component 251 also provides an upward support force. The two work together to ensure that the directional plate 22 always maintains a vertical posture during the entire movement process and will not tilt or skew. This ensures that the axis of the directional hole 221 on the directional plate 22 always remains horizontal and collinear with the axis of the stamping die and the axis of the spray pipe.

[0053] Reference Figure 5 and Figure 11 As shown: The clamping structure 23 also includes an abutment claw 233 and a sliding guide assembly 234; the abutment claw 233 is disposed on the inner side of the clamping arm 231; the sliding guide assembly 234 is disposed on the clamping arm 231 and is used to slide the abutment claw 233 and the clamping arm 231.

[0054] If the clamping arm 231 is fixedly connected to the spray pipe when clamping it, the clamping arm 231 will move along the outer wall of the spray pipe when the guide plate 22 moves towards the spray pipe, which will cause wear on the outer wall of the spray pipe. Therefore, an abutment claw 233 and a sliding guide assembly 234 are provided. When the clamping arm 231 moves towards the spray pipe, the abutment claw 233 abuts against the outer wall of the spray pipe. When the guide plate 22 moves, the guide plate 22 drives the second guide rod 2341 to slide relative to the abutment claw 233, and the abutment claw 233 remains stationary. Spring 2342 is compressed and stores elastic potential energy. When the guide plate 22 is reset, spring 2342 releases elastic potential energy, causing the second guide rod 2341 to slide relative to the abutment claw 233 again. The movement of clamping arm 231 is achieved through the relative sliding between the second guide rod 2341 and the abutment claw 233, rather than the clamping arm 231 sliding along the outer wall of the spray pipe. This eliminates the direct friction between the clamping arm 231 and the outer wall of the spray pipe, avoiding problems such as scratches and abrasions on the outer wall of the spray pipe caused by relative sliding during rigid clamping.

[0055] A stamping method, applied to a directional flaring stamping mechanism for an automotive spray pipe, includes the following steps: S1. The spray pipe to be stamped is fixed on the side of the double-head stamping mechanism 1, and multiple clamping mechanisms move towards the spray pipe at the same speed from all sides of the spray pipe. S2. When multiple clamping mechanisms are in contact with the outer wall of the spray pipe, the axis of the orientation hole 221 of the orientation plate 22 is collinear with the axis of the spray pipe, and the adjusting plate 21 moves synchronously with the orientation plate 22 under the drive of the synchronous adjusting structure 25. S3, the switching mechanism 13 adjusts the flaring die 11 to the corresponding orientation hole 221; S4. The punch 14 pushes the flaring die 11 toward the spray pipe. When the flaring die 11 enters the directional hole 221, the punch 14 contacts the directional plate 22 and pushes the directional plate 22 and the flaring die 11 to move synchronously. S5. After the flaring is completed, the switching mechanism 13 switches the forming die 12 to the corresponding orientation hole 221; S6. The stamping device 14 pushes the forming die 12 toward the spray pipe. When the forming die 12 enters the directional hole 221, the stamping device 14 pushes the directional plate 22 and the forming die 12 to move synchronously.

[0056] The above embodiments only illustrate one or more implementation methods of this invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this invention, and these all fall within the protection scope of this invention. Therefore, the protection scope of this invention should be determined by the appended claims.

Claims

1. A directional flaring and stamping mechanism for automotive sprinkler pipes, characterized in that, It includes a double-head stamping mechanism (1) and a directional mechanism (2); The double-head stamping mechanism (1) includes a flaring die (11), a forming die (12), a switching mechanism (13), and a stamper (14). The flaring die (11) and the forming die (12) are both mounted on the switching mechanism (13). The switching mechanism (13) is used to selectively move the flaring die (11) or the forming die (12) to a working position coaxial with the stamper (14). The orientation mechanism (2) includes an adjustment plate (21) that can translate in two mutually perpendicular directions in a vertical plane, an orientation plate (22), an orientation clamping mechanism, and a synchronous adjustment structure (25). The adjustment plate (21) and the orientation plate (22) are arranged parallel to each other, and the double-headed stamping mechanism (1) is arranged between the adjustment plate (21) and the orientation plate (22). The orientation plate (22) has a horizontal orientation hole (221) in the middle. When the flared die (11) is in the orientation hole (221), the orientation plate (22) can be pushed by the stamper (14). The orientation clamping mechanism includes multiple clamping structures (23). The multiple clamping structures (23) are arranged at equal intervals around the orientation hole (221) on the orientation plate (22). The synchronous adjustment structure (25) is used to connect the orientation plate (22) and the adjustment plate (21).

2. The automotive spray pipe directional flaring and stamping mechanism according to claim 1, characterized in that, The directional plate (22) has multiple first grooves (222) pointing to the center of the directional hole (221), and multiple clamping structures (23) correspond to the multiple first grooves (222) respectively. The clamping structure (23) includes a clamping arm (231) and a first guide rod (232). One end of the clamping arm (231) is slidably connected to the first slide groove (222); The axis of the first guide rod (232) points to the center of the orientation hole (221) and is slidably connected to the clamping arm (231).

3. The automotive spray pipe directional flaring and stamping mechanism according to claim 1, characterized in that, The orientation clamping mechanism also includes a clamping drive structure (24), which includes a drive plate (241) and a rotary drive assembly (242). The drive plate (241) has a central hole (2411) coaxial with the orientation hole (221), and a plurality of second sliding grooves (2412) are provided around the central hole (2411). The clamping arm (231) is slidably connected to the second sliding grooves (2412). The rotary drive assembly (242) is used to drive the drive plate (241) to rotate around the orientation hole (221).

4. The automotive spray pipe directional flaring and stamping mechanism according to claim 1, characterized in that, The switching mechanism (13) includes a rotating shaft (131), a frame (132), and two mounting bases (133). The rotating shaft (131) and the adjusting plate (21) are connected by bearings; The middle part of the frame (132) is connected to the rotating shaft (131), and two sliding holes symmetrical about the rotating shaft (131) are opened on the frame (132); The two mounting bases (133) are used to install the flaring die (11) and the forming die (12) respectively, and are slidably set in the two sliding holes respectively.

5. The automotive spray pipe directional flaring and stamping mechanism according to claim 4, characterized in that, The switching mechanism (13) also includes two magnetic fixing components (134), which are respectively set in two sliding holes on the frame (132). The magnetic fixing components (134) generate a magnetic force on the mounting base (133) to fix the mounting base (133) on the frame (132).

6. The automotive spray pipe directional flaring and stamping mechanism according to claim 1, characterized in that, The dual-head stamping mechanism (1) also includes a magnetic docking assembly (15) for fixing the mounting base (133) and the stamper (14).

7. The automotive spray pipe directional flaring and stamping mechanism according to claim 1, characterized in that, The synchronous adjustment structure (25) includes a first synchronous component (251), which slides to connect the directional plate (22) and the adjustment plate (21), so that the directional plate (22) can move in a direction perpendicular to the adjustment plate (21).

8. The automotive spray pipe directional flaring and stamping mechanism according to claim 7, characterized in that, The synchronization adjustment structure (25) also includes a second synchronization component (252), which slides to connect the directional plate (22) and the rotating shaft (131).

9. A directional flaring and stamping mechanism for an automotive spray pipe according to claim 2, characterized in that, The clamping structure (23) also includes abutment claws (233) and sliding guide components (234); The abutment claw (233) is located on the inside of the clamping arm (231); A sliding guide assembly (234) is disposed on the clamping arm (231) for slidingly connecting the abutment claw (233) and the clamping arm (231).

10. A stamping method, applied to a directional flaring stamping mechanism for an automotive spray pipe as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. The spray pipe to be stamped is fixed on the side of the double-head stamping mechanism (1), and multiple clamping mechanisms move towards the spray pipe at the same speed from all sides of the spray pipe. S2. When multiple clamping mechanisms are in contact with the outer wall of the spray pipe, the axis of the directional hole (221) of the directional plate (22) is collinear with the axis of the spray pipe, and the adjusting plate (21) moves synchronously with the directional plate (22) under the drive of the synchronous adjusting structure (25). S3. The switching mechanism (13) adjusts the flaring die (11) to the corresponding orientation hole (221). S4. The punch (14) pushes the flaring die (11) toward the spray pipe. When the flaring die (11) enters the directional hole (221), the punch (14) contacts the directional plate (22) and pushes the directional plate (22) and the flaring die (11) to move synchronously. S5. After the flaring is completed, the switching mechanism (13) switches the forming die (12) to the corresponding orientation hole (221). S6. The stamper (14) pushes the forming die (12) toward the spray pipe. When the forming die (12) enters the directional hole (221), the stamper (14) pushes the directional plate (22) and the forming die (12) to move synchronously.

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