A directional flaring stamping mechanism and stamping method for an automobile spray pipe

Abstract

The application relates to the technical field of pipe processing, in particular to a directional flaring stamping mechanism and a stamping method for an automobile spraying pipe, which comprises a double-head stamping mechanism and a directional mechanism. The double-head stamping mechanism comprises a flaring die, a forming die, a switching mechanism and a punch, and the switching mechanism is used for switching the flaring die and the forming die to correspond to the punch. The directional mechanism comprises an adjusting plate, a directional plate, a directional clamping mechanism and a synchronous adjusting structure. The middle part of the directional plate is provided with an axis horizontal directional hole, and when the flaring die is in the directional hole, the directional plate can be pushed by the punch. The directional clamping mechanism comprises a plurality of clamping structures, the plurality of clamping structures are arranged on the directional plate at equal intervals around the directional hole, and the synchronous adjusting structure is used for connecting the directional plate and the adjusting plate. The double-head stamping mechanism and the directional mechanism are arranged, so that the whole-process axis collinear control from positioning, flaring to forming is realized, and the cumulative error among the processes is eliminated.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of pipe machining, in particular to an automobile spray pipe directional flaring stamping mechanism and a stamping method. BACKGROUND

[0002] In the field of automobile manufacturing, as a key part of the engine cooling system and the air conditioning air supply system, the flaring and forming precision of the end of the spray pipe directly affects the sealing and assembly reliability of the pipeline connection. At present, the processing of the automobile spray pipe in the industry mainly adopts the traditional step-by-step stamping process, that is, the spray pipe is first fixed by manual or simple tooling, and then the flaring and forming processes are completed in sequence by using a single stamping die.

[0003] A patent with the application publication number CN120480009A discloses a new energy automobile drive motor spray pipe direction selection double-end upsetting saddle equipment and method. The equipment coordinates the work of each component through a control system, the hopper component stores the pipe to be processed and discharges one by one, the material receiving component moves to the detection position after receiving the pipe, the rotary directional component rotates the pipe to the target angle state according to the position of the spray hole on the pipe, the material receiving component moves the oriented pipe to the material receiving position, the material moving manipulator grabs the pipe and transports it to the stamping processing component, the stamping processing component clamps the pipe by the die clamp, switches the flaring die and the saddle forming die by the die changing mechanism, and completes the flaring and saddle structure forming of the two ends of the pipe in sequence under the driving of the stamping cylinder, realizing the automation of the spray pipe processing.

[0004] Although the above-mentioned scheme realizes the automatic stamping of the spray pipe, the above-mentioned scheme still has defects in the precision requirement scene, and it is difficult to ensure that the spray pipe axis and the die axis are always collinear, especially when the initial positioning of the spray pipe has deviation, the relative position of the die and the spray pipe is easy to deviate, in the process error elimination aspect, in the stamping processing component of the above-mentioned scheme, there is a lack of radial limiting action of the die, the die is easy to deviate due to factors such as equipment vibration and spray pipe reaction force in the stamping process, the full-process axis collinear control from positioning, flaring to forming cannot be realized, and the cumulative error between processes is difficult to eliminate. SUMMARY

[0005] In view of the above problems, an automobile spray pipe directional flaring stamping mechanism is provided, which realizes full-process axis collinear control from positioning, flaring to forming by setting a double-end stamping mechanism and a directional mechanism, and eliminates the cumulative error between processes.

[0006] To solve the prior art problems, the application provides a directional flaring stamping mechanism for an automobile spray pipe, comprising a double-head stamping mechanism and a directional mechanism; the double-head stamping mechanism comprises a flaring die, a forming die, a switching mechanism and a punch, the flaring die and the forming die are both installed on the switching mechanism, and the switching mechanism is used for selectively moving the flaring die or the forming die to a working position coaxial with the punch; the directional mechanism comprises an adjusting plate, a directional plate, a directional clamping mechanism and a synchronous adjusting structure, the adjusting plate and the directional plate are arranged in parallel with each other, and the double-head stamping mechanism is arranged between the adjusting plate and the directional plate, a directional hole with a horizontal axis is formed in the middle of the directional plate, and when the flaring die is in the directional hole, the directional plate can be pushed by the punch, the directional clamping mechanism comprises a plurality of clamping structures, the plurality of clamping structures are arranged at equal intervals around the directional hole on the directional plate, and the synchronous adjusting structure is used for connecting the directional plate and the adjusting plate.

[0007] Preferably, a plurality of first sliding grooves pointing to the center of the directional hole are formed in the directional plate, the plurality of clamping structures correspond to the plurality of first sliding grooves respectively, the clamping structure comprises a clamping arm and a first guide rod, one end of the clamping arm is in sliding connection with the first sliding groove, and the first guide rod has an axis pointing to the center of the directional hole and is in sliding connection with the clamping arm.

[0008] Preferably, the directional clamping mechanism further comprises a clamping driving structure, the clamping driving structure comprises a driving plate and a rotary driving assembly, a central hole coaxial with the directional hole is formed in the driving plate, a plurality of second sliding grooves are arranged around the central hole, the clamping arm is in sliding connection with the second sliding groove, and the rotary driving assembly is used for driving the driving plate to rotate around the directional hole.

[0009] Preferably, the switching mechanism comprises a rotating shaft, a rack and two mounting seats, the rotating shaft is connected with the adjusting plate through a bearing, the middle of the rack is connected with the rotating shaft, two sliding holes symmetrical about the rotating shaft are formed in the rack, and the two mounting seats are used for mounting the flaring die and the forming die respectively and are arranged in sliding mode in the two sliding holes.

[0010] Preferably, the switching mechanism further comprises two magnetic attraction fixing assemblies, the two magnetic attraction fixing assemblies are arranged in the two sliding holes on the rack respectively, and the attraction force generated by the magnetic attraction fixing assembly on the mounting seat fixes the mounting seat on the rack.

[0011] Preferably, the double-head stamping mechanism further comprises a magnetic attraction butt joint assembly, and the magnetic attraction butt joint assembly is used for fixedly connecting the mounting seat and the punch.

[0012] Preferably, the synchronous adjusting structure comprises a first synchronous assembly, the first synchronous assembly is in sliding connection with the directional plate and the adjusting plate, and the directional plate can move in a direction perpendicular to the adjusting plate.

[0013] Preferably, the synchronous adjusting structure further comprises a second synchronous assembly, and the second synchronous assembly is in sliding connection with the directional plate and the rotating shaft.

[0014] Preferably, the clamping structure further comprises an abutting claw and a sliding guide assembly; the abutting claw is arranged on the inner side of the clamping arm; the sliding guide assembly is arranged on the clamping arm and is used for slidingly connecting the abutting claw and the clamping arm.

[0015] A stamping method applied to a directional flaring stamping mechanism of an automobile spray pipe, comprising the following steps:

[0016] S1, the spray pipe to be stamped is fixed beside the double-head stamping mechanism, and a plurality of clamping mechanisms move towards the spray pipe at the same speed from all around the spray pipe;

[0017] S2, when the plurality of clamping mechanisms all abut against 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 driving of the synchronous adjusting structure;

[0018] S3, the switching mechanism adjusts the flaring die to the corresponding directional hole;

[0019] S4, the stamping device pushes the flaring die to move towards the spray pipe, and when the flaring die enters the directional hole, the stamping device contacts the directional plate and pushes the directional plate and the flaring die to move synchronously;

[0020] S5, after the flaring is completed, the switching mechanism switches the forming die to the corresponding directional hole;

[0021] S6, the stamping device pushes the forming die to move towards the spray pipe, and when the forming die enters the directional hole, the stamping device pushes the directional plate and the forming die to move synchronously.

[0022] The beneficial effects of the present application compared with the prior art are:

[0023] 1. The double-head stamping mechanism and the directional mechanism, the plurality of clamping structures in the directional mechanism move synchronously and push the directional plate to adjust slightly through reaction force, the adjusting plate moves synchronously with the directional plate through the synchronous adjusting structure, the spray pipe and the directional hole are collinear, which lays the axis reference for subsequent processing, the switching mechanism in the double-head stamping mechanism switches the flaring die and the forming die, and because the directional hole and the spray pipe are collinear, the axes of the two dies and the spray pipe are collinear, the axis consistency during process switching is ensured, the die moves synchronously with the directional plate when the stamping device works, the directional hole always limits the die in the radial direction, the die keeps collinear with the axis of the spray pipe during the stamping process, the processing deviation is avoided, the axis collinear control of the whole process from positioning, flaring to forming is realized, and the cumulative error between processes is eliminated.

[0024] 2. The application sets clamping arms and first guide rods, and a plurality of first sliding grooves pointing to the center of the orientation hole are opened on the orientation plate, the first sliding grooves provide the basis for the movement track of the clamping arms towards the center of the orientation hole, the first guide rods penetrate the clamping arms and form double constraints on the movement direction of the clamping arms, which not only limits the translation of the clamping arms along the direction parallel to the axis of the first guide rod, but also avoids the rotation of the clamping arms, ensuring that the clamping arms always approach the spray pipe in a translational attitude, when a plurality of 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 orientation hole and the axis of the spray pipe can be stably collinear after each clamping calibration.

[0025] 3. The application sets clamping drive structure, the second sliding groove on the drive plate cooperates with the first sliding groove of the orientation plate to provide power and guidance for the clamping arms, so that a plurality of clamping arms can move towards or away from the spray pipe synchronously, and the movement of a plurality of clamping arms is driven by the same drive plate, thereby ensuring that the force of each clamping arm contacting the outer wall of the spray pipe is uniform. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a perspective view of the application of a kind to be applied to automobile spray pipe directional flaring stamping mechanism.

[0027] Figure 2 is a top view of the application of a kind to be applied to automobile spray pipe directional flaring stamping mechanism.

[0028] Figure 3 is Figure 2 perspective sectional view at A-A in Fig.

[0029] Figure 4 is a perspective view of the application of a kind to be applied to automobile spray pipe directional flaring stamping mechanism in rotating shaft, adjusting plate, orientation plate, clamping structure, clamping drive structure and synchronous adjusting structure.

[0030] Figure 5 is a perspective view of the application of a kind to be applied to automobile spray pipe directional flaring stamping mechanism in orientation plate, clamping arm, first guide rod, abutment claw, sliding guide assembly and clamping drive assembly.

[0031] Figure 6 is a perspective view of the application of a kind to be applied to automobile spray pipe directional flaring stamping mechanism in orientation plate, clamping arm, drive plate, linear drive, fixed shaft and transmission plate.

[0032] Figure 7 is a perspective view of the application of a kind to be applied to automobile spray pipe directional flaring stamping mechanism in flaring die, forming die, switching mechanism, punch and adjusting plate.

[0033] Figure 8 is a perspective view of the application of a kind to be applied to automobile spray pipe directional flaring stamping mechanism in rack, mounting seat and magnetic attraction fixing assembly.

[0034] Figure 9 is a perspective view of the mounting seat, the punch, the second magnetic block and the third magnetic block in the directional flaring punch mechanism of the automobile spray pipe.

[0035] Figure 10 is a perspective view of the rotating shaft, the adjusting plate, the directional plate, the first synchronous assembly and the second synchronous assembly in the directional flaring punch mechanism of the automobile spray pipe.

[0036] Figure 11 is a perspective view of the directional plate, the clamping arm, the abutting claw and the sliding guide assembly in the directional flaring punch mechanism of the automobile spray pipe.

[0037] In the figure, the reference signs are as follows: 1, double-head punch mechanism; 11, flaring die; 12, forming die; 13, switching mechanism; 131, rotating shaft; 132, rack; 133, mounting seat; 134, magnetic attraction fixing assembly; 1341, magnetic attraction fixing ring; 1342, first magnetic block; 14, punch; 15, magnetic attraction butt joint assembly; 151, second magnetic block; 152, third magnetic block; 2, directional mechanism; 21, adjusting plate; 22, directional plate; 221, directional hole; 222, first sliding groove; 23, clamping structure; 231, clamping arm; 232, first guide rod; 233, abutting claw; 234, sliding guide assembly; 2341, second guide rod; 2342, first spring; 24, clamping driving structure; 241, driving plate; 2411, center hole; 2412, second sliding groove; 242, rotary driving assembly; 2421, linear driver; 2422, fixed shaft; 2423, transmission plate; 25, synchronous adjusting structure; 251, first synchronous assembly; 2511, third guide rod; 2512, limiting sleeve; 2513, second spring; 252, second synchronous assembly; 2521, connecting seat; 2522, guide sleeve. DETAILED DESCRIPTION

[0038] In order to further understand the features, technical means and specific purposes and functions achieved by the present application, the present application will be described in further detail below with reference to the drawings and specific embodiments.

[0039] REFERENCE Figures 1 to 11The utility model discloses a kind of directional flaring punch mechanisms of automobile spray pipe, including double-end punch mechanism 1 and directional mechanism 2;Double-end punch mechanism 1 includes flaring punch die 11, forming punch die 12, switching mechanism 13 and puncher 14, flaring punch die 11 and forming punch die 12 are installed on switching mechanism 13, switching mechanism 13 is used to selectively move flaring punch die 11 or forming punch die 12 to coaxial working position with puncher 14;Directional mechanism 2 includes adjustable plate 21 that can be translated in two directions perpendicular to each other in vertical plane, directional plate 22, directional clamping mechanism and synchronous adjustment structure 25, adjustable plate 21 and directional plate 22 are arranged mutually parallel, and double-end punch mechanism 1 is arranged between adjustable plate 21 and directional plate 22, the middle part of directional plate 22 is provided with directional hole 221 with axis horizontal, and flaring punch die 11 is in directional hole 221, and directional plate 22 can be pushed by the action of puncher 14, directional clamping mechanism includes multiple clamping structures 23, multiple clamping structures 23 are arranged on directional plate 22 with equal intervals around directional hole 221, and synchronous adjustment structure 25 is used to connect directional plate 22 and adjustable plate 21.

[0040] First, the to-be-punched spray pipe is fixed horizontally beside the double-head punching mechanism 1, ensuring that the to-be-processed end of the spray pipe faces the orientation hole 221 of the orientation plate 22. At this time, the spray pipe axis and the orientation hole 221 axis may have a certain deviation. Then, the orientation clamping mechanism is started, and the plurality of clamping structures 23 move from the four sides of the spray pipe towards the outer wall of the spray pipe at the same speed. In the process of contact between the clamping structure 23 and the outer wall of the spray pipe, if the spray pipe axis and the orientation hole 221 axis are not collinear, the first contacted clamping structure 23 will be subjected to the reaction force of the spray pipe, which pushes the orientation plate 22 to produce a slight displacement in the horizontal and vertical directions. Since the adjusting plate 21 is connected with the orientation plate 22 through the synchronous adjusting structure 25, the adjusting plate 21 will move synchronously with the orientation plate 22 until the plurality of clamping structures 23 are in close contact with the outer wall of the spray pipe. At this time, the orientation hole 221 axis of the orientation plate 22 is completely collinear with the spray pipe axis after the self-adaptive adjustment of the clamping jaw, and the orientation and calibration of the spray pipe are completed. Then, the switching mechanism 13 is started, and the flaring punch 11 is switched to a position coaxially aligned with the orientation hole 221 on the orientation plate 22. At this time, the axis of the flaring punch 11 is coaxial with the spray pipe axis due to the collinearity of the orientation hole 221 and the spray pipe axis. Then, the punch 14 starts to work, and the output end generates a horizontal pushing force acting on the flaring punch 11, pushing the flaring punch 11 towards the to-be-processed end of the spray pipe. When the front end of the flaring punch 11 enters the orientation hole 221 of the orientation plate 22, the output end of the punch 14 contacts the orientation plate 22. At this time, the pushing force of the punch 14 acts on the flaring punch 11 and the orientation plate 22, driving the orientation plate 22 and the flaring punch 11 to move towards the spray pipe. In the process of inserting the flaring punch 11 into the to-be-processed end of the spray pipe, the orientation hole 221 on the orientation plate 22 always limits the flaring punch 11 in the radial direction, strictly limiting the deviation of the flaring punch 11 and ensuring that the axis of the flaring punch 11 is collinear with the axis of the spray pipe. After the flaring process is completed, the switching mechanism 13 is started again to switch the forming punch 12 to a position coaxially aligned with the orientation hole 221. At this time, the axis of the forming punch 12 is also collinear with the axis of the spray pipe. The punch 14 is started again to generate a pushing force to push the forming punch 12 towards the flared end of the spray pipe. When the front end of the forming punch 12 enters the orientation hole 221, the output end of the punch 14 contacts the orientation plate 22, driving the orientation plate 22 and the forming punch 12 to move towards the spray pipe. The orientation hole 221 continues to limit the forming punch 12 in the radial direction to avoid deviation of the forming punch 12 during punching. The forming punch 12 gradually contacts the flared end of the spray pipe and is punched and shaped by the pre-set forming structure. Finally, the plurality of clamping structures 23 of the orientation clamping mechanism move synchronously in the reverse direction to release the spray pipe, completing the orientation, flaring and forming processes of the spray pipe. Through the self-adaptive adjustment of the orientation mechanism 2 and the switching of the double-head punching mechanism 1, the axis collinearity control of the whole process from positioning, flaring to forming is realized, and the cumulative error between processes is eliminated.

[0041] Referring to Figure 3 , Figure 4 and Figure 5 , the directional plate 22 is provided with a plurality of first sliding grooves 222 pointing to the center of the directional hole 221, and a plurality of clamping structures 23 correspond to the plurality of first sliding grooves 222 respectively, the clamping structure 23 comprises a clamping arm 231 and a first guide rod 232; one end of the clamping arm 231 is in sliding connection with the first sliding groove 222; the axis of the first guide rod 232 points to the center of the directional hole 221, and the first guide rod 232 is in sliding connection with the clamping arm 231.

[0042] When the directional clamping mechanism works, the clamping arm 231 moves along the first sliding groove 222 towards the center of the directional hole 221, and in the process of the clamping arm 231 moving along the first sliding groove 222, the first guide rod 232 always penetrates the clamping arm 231, which forms double constraints on the moving direction of the clamping arm 231, that is, it not only limits the translation of the clamping arm 231 along the direction parallel to the axis of the first guide rod 232, but also avoids the rotation of the clamping arm 231, so as to ensure that the clamping arm 231 always moves towards the spray pipe in a translational attitude, and when the plurality of clamping arms 231 all abut against the outer wall of the spray pipe, because each clamping arm 231 keeps translation and moves along the 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, the axis of the spray pipe is completely collinear with the axis of the directional hole 221 under the action of the plurality of clamping arms 231, so as to ensure that the directional hole 221 and the axis of the spray pipe can be stably collinear after each clamping and calibration.

[0043] Referring to Figure 5 and Figure 6 , the directional clamping mechanism further comprises a clamping driving structure 24, the clamping driving structure 24 comprises a driving plate 241 and a rotary driving assembly 242; the driving plate 241 is provided with a central hole 2411 coaxial with the directional hole 221, a plurality of second sliding grooves 2412 are arranged around the central hole 2411, and the clamping arm 231 is in sliding connection with the second sliding groove 2412; the rotary driving assembly 242 is used for driving the driving plate 241 to rotate around the directional hole 221.

[0044] Specifically, the rotary driving assembly 242 comprises a linear driver 2421, a fixed shaft 2422 and a transmission plate 2423, the linear driver 2421 is arranged on one side of the directional plate 22, the axis of the fixed shaft 2422 is parallel to the axis of the central hole 2411 of the driving plate 241, and the fixed shaft 2422 is fixedly connected with the driving plate 241, the transmission plate 2423 is connected with the linear driver 2421, and the transmission plate 2423 is provided with a third sliding groove, and the transmission plate 2423 is in sliding connection with the fixed shaft 2422 through the third sliding groove.

[0045] When the plurality of clamping arms 231 need to be driven to clamp the spray pipe, the linear driver 2421 pushes the transmission plate 2423 to translate, and in the process of translation, the transmission plate 2423 pushes the driving plate 241 to rotate around the center hole 2411 through the sliding fit between the third sliding groove and the fixed shaft 2422, and in the process of rotation, the plurality of second sliding grooves 2412 on the driving plate 241 rotate synchronously with the driving plate 241, and since the clamping arms 231 are simultaneously constrained by the first sliding groove 222 of the directional plate 22, the rotation of the second sliding grooves 2412 will exert a pushing force on the clamping arms 231 towards the center of the directional hole 221, and under the guidance of the first sliding groove 222 and the pushing force of the second sliding groove 2412, the plurality of clamping arms 231 move synchronously along the first sliding groove 222 towards the spray pipe until the clamping arms 231 tightly abut against the outer wall of the spray pipe, and the clamping action is completed, and in the whole process, since all the second sliding grooves 2412 are distributed at equal intervals around the center hole 2411 of the driving plate 241 and the rotational angular velocity of the driving plate 241 is uniform, the moving speed of each clamping arm 231 is completely consistent, which ensures synchronous approaching to the spray pipe, and when the plurality of clamping arms 231 need to be driven to move away from the spray pipe, the linear driver 2421 pushes the transmission plate 2423 to translate in the opposite direction, the driving plate 241 rotates in the opposite direction, the second sliding grooves 2412 rotate synchronously with the driving plate 241, and under the guidance of the first sliding groove 222, the plurality of clamping arms 231 move synchronously in the opposite direction along the first sliding groove 222 to move away from the outer wall of the spray pipe until they return to the initial clamping position, and the loosening action is completed, and through the same driving plate 241, the plurality of clamping arms 231 are driven to move, thereby ensuring that the force when each clamping arm 231 contacts the outer wall of the spray pipe is uniform.

[0046] Referring to Figure 3 and Figure 7 As shown in the figure, the switching mechanism 13 comprises a rotating shaft 131, a rack 132 and two mounting seats 133; the rotating shaft 131 is connected with the adjusting plate 21 through a bearing; the middle part of the rack 132 is connected with the rotating shaft 131, and two sliding holes symmetrical about the rotating shaft 131 are formed in the rack 132; the two mounting seats 133 are respectively used for mounting the flared die 11 and the forming die 12 and are respectively and slidingly arranged in the two sliding holes.

[0047] When the spray pipe needs to be flared, the rotating shaft 131 rotates 180 degrees around its own axis, the rack 132 rotates 180 degrees synchronously with the rotating shaft 131, and the two mounting seats 133 and the corresponding dies 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 on which the flaring die 11 is mounted will rotate from the initial position to the position coaxially aligned with the directional hole 221 of the directional plate 22, completing the die switching. After the flaring die 11 is aligned with the directional hole 221, the punch 14 exerts a horizontal pushing force on the mounting seat 133 on which the flaring die 11 is mounted, and under the action of the pushing force, the mounting seat 133 slides along the sliding hole towards the directional plate 22, driving the flaring die 11 to move synchronously. The flaring die 11 punches a reference port at the end of the spray pipe that meets the size requirements. When forming processing is needed, the rotating shaft 131 reversely rotates 180 degrees around its own axis, the rack 132 reversely rotates 180 degrees synchronously with the rotating shaft 131, the mounting seat 133 on which the forming die 12 is mounted rotates to the 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 punch 14 is started again, and its output end exerts a horizontal pushing force on the mounting seat 133 on which the forming die 12 is mounted. The mounting seat 133 slides along the sliding hole of the rack 132 towards the directional plate 22, driving the forming die 12 to pass through the avoiding hole of the adjusting plate 21 and enter the directional hole 221, and contact the flared end of the spray pipe, completing the stamping forming process. The switching mechanism 13 rotates the rack 132 180 degrees through the rotating shaft 131 to complete the position exchange of the two dies. The switching time is short, thereby reducing the die switching time and improving the overall efficiency of the spray pipe flaring and forming processing, and shortening the processing cycle of a single workpiece.

[0048] Referring to Figure 3 , Figure 7 and Figure 8 , the switching mechanism 13 further includes two magnetic attraction fixing assemblies 134, and the two magnetic attraction fixing assemblies 134 are respectively arranged in the two sliding holes on the rack 132. The magnetic attraction of the magnetic attraction fixing assembly 134 fixes the mounting seat 133 on the rack 132.

[0049] Specifically, the magnetic attraction fixing assembly 134 includes a magnetic attraction fixing ring 1341 and a plurality of first magnetic blocks 1342. The magnetic attraction fixing ring 1341 is arranged at the end of the mounting seat 133, and the plurality of first magnetic blocks 1342 are arranged on the rack 132 and equidistantly arranged around the axis of the magnetic attraction fixing ring 1341.

[0050] When the switching mechanism 13 is not started to rotate, the two mounting seats 133 are respectively located in the two sliding holes of the frame 132, and the respective magnetic attraction fixing ring 1341 is opposite to the first magnetic block 1342 around the corresponding sliding hole, the magnetic field generated by the first magnetic block 1342 forms a stable attractive force on the magnetic attraction fixing ring 1341, thereby fixing the mounting seat 133 on the frame 132. When the punch 14 applies a horizontal pushing force to the mounting seat 133, when the pushing force is greater than the maximum attractive force of the first magnetic block 1342 on the magnetic attraction fixing ring 1341, the mounting seat 133 overcomes the magnetic attraction force and starts to slide along the sliding hole of the frame 132 towards the orientation plate 22. When the punch 14 pulls the mounting seat 133 to retreat to the initial position along the sliding hole, the mounting seat 133 drives the magnetic attraction fixing ring 1341 to move synchronously in the opposite direction. As the distance between the magnetic attraction fixing ring 1341 and the first magnetic block 1342 gradually decreases, the attractive force of the first magnetic block 1342 on the magnetic attraction fixing ring 1341 gradually recovers, and finally the mounting seat 133 is fixed on the frame 132 again. The magnetic attraction fixing assembly 134 fixes the mounting seat 133 on the frame 132 through the attractive force of the first magnetic block 1342 and the magnetic attraction fixing ring 1341, thereby avoiding the sliding of the mounting seat 133 along the sliding hole.

[0051] Referring to Figure 3 and Figure 9 As shown: The double-head punch mechanism 1 further comprises a magnetic attraction docking assembly 15, which is used to fixedly connect the mounting seat 133 and the punch 14.

[0052] Specifically, the magnetic attraction docking assembly 15 comprises a second magnetic block 151 and two third magnetic blocks 152. The second magnetic block 151 is connected with the output end of the punch 14, and the two third magnetic blocks 152 are respectively arranged at the end portions of the two mounting seats 133. The magnetism of the second magnetic block 151 is opposite to that of the third magnetic block 152.

[0053] The punch 14 needs to push the mounting seat 133 to move horizontally and reset the mounting seat 133, and the punch 14 needs to be connected and disconnected with the mounting seat 133 constantly, so the magnetic attraction assembly 15 is arranged, when the output end of the punch 14 moves along the horizontal direction towards the target mounting seat 133, the second magnetic block 151 fixed on the output end moves together, as the output end of the punch 14 gradually approaches the mounting seat 133, the distance between the second magnetic block 151 and the third magnetic block 152 on the mounting seat 133 is constantly reduced, and the magnetic attraction force generated by the opposite polarity gradually increases, when the output end of the punch 14 moves to contact the end of the mounting seat 133, the second magnetic block 151 and the third magnetic block 152 are completely attached, the magnetic attraction force adsorbs the mounting seat 133 and the output end of the punch 14 firmly together, forming a rigid connection whole of the punch 14 and the mounting seat 133, when the punch completes the stamping, the output end of the punch 14 moves along the horizontal direction towards the direction away from the directional plate 22, at this time, the magnetic attraction force between the second magnetic block 151 and the third magnetic block 152 still remains stable, driving the mounting seat 133 to slide along the slide hole reversely together with the output end of the punch 14, gradually away from the directional plate 22, when the mounting seat 133 reversely slides to the initial position, the side of the mounting seat 133 close to the rack 132 contacts the surface of the rack 132, the rack 132 generates a rigid blocking force to the mounting seat 133, limiting the mounting seat 133 to continue to move, at this time, the position of the mounting seat 133 is fixed by the rack 132, and the mounting seat 133 cannot further reversely move with the output end of the punch 14, the relative position between the second magnetic block 151 and the third magnetic block 152 starts to separate, and the magnetic attraction connection relationship is disconnected, the output end of the punch 14 continues to move to the initial reset position, waiting for the next magnetic attraction connection action, and the mounting seat 133 is kept in the initial position under the blocking of the rack 132, the magnetic attraction assembly 15 realizes the rapid connection of the punch 14 and the mounting seat 133 through the magnetic attraction force, so that the connection time of the punch 14 and the mounting seat 133 is greatly shortened.

[0054] Referring to Figure 3 , Figure 4 and Figure 10 , the synchronous adjusting structure 25 includes a first synchronous assembly 251, the first synchronous assembly 251 is slidably connected with the directional plate 22 and the adjusting plate 21, so that the directional plate 22 can move along the direction perpendicular to the adjusting plate 21.

[0055] Specifically, the first synchronization assembly 251 comprises a plurality of third guide rods 2511, the plurality of third guide rods 2511 are parallel to each other, and the third guide rods 2511 are perpendicular to the adjusting plate 21, one end of the third guide rods 2511 is connected with the directional plate 22, the other end of the third guide rods 2511 penetrates through the adjusting plate 21 and is in sliding connection with the adjusting plate 21, the third guide rods 2511 are sleeved with a limiting sleeve 2512 and a second spring 2513, the limiting sleeve 2512 is sleeved at the middle part of the third guide rods 2511, for controlling the shortest distance between the directional plate 22 and the adjusting plate 21, and the second spring 2513 is sleeved at the end part of the third guide rods 2511, for providing a pulling force to the directional plate 22 towards the adjusting plate 21.

[0056] When the punch 14 completes the magnetic attraction docking with the mounting seat 133, pushes the punch die (such as the flaring punch die 11) into the directional hole 221 of the directional plate 22 and contacts with the directional plate 22, it is necessary to further push the directional plate 22 to move synchronously with the punch die to complete the punching, at this time, the output end of the punch 14 continuously applies a horizontal pushing force, which is transmitted to the directional plate 22 through the punch die, so that the directional plate 22 overcomes the pulling force of the second spring 2513 and moves away from the adjusting plate 21, when the directional plate 22 moves, all the third guide rods 2511 move along the axial direction synchronously, the third guide rods 2511 slide relative to the adjusting plate 21, and the second spring 2513 sleeved at the end part of the third guide rods 2511 is further compressed, and the second spring 2513 gradually stores elastic potential energy, when the punch die completes the punching, the mounting seat 133 and the punch die are reversely reset by the punch 14, the second spring 2513 releases the elastic potential energy to push the third guide rods 2511 to reversely move along the axial direction, and then drives the directional plate 22 to move towards the adjusting plate 21, when the directional plate 22 is reset and moves to contact with the limiting sleeve 2512, the limiting sleeve 2512 prevents the directional plate 22 from continuously moving towards the adjusting plate 21, and the initial fixed distance between the directional plate 22 and the adjusting plate 21 is restored, the directional plate 22 and the adjusting plate 21 are connected by the plurality of third guide rods 2511 which are parallel to each other, so that the directional plate 22 can synchronously move along the axial direction of the punch die under the pushing of the punch 14, and all the third guide rods 2511 move synchronously, avoiding the inclination of the directional plate 22, thereby ensuring that the axial line of the punch die is always collinear with the axial line of the spray pipe during the movement without any deviation or inclination.

[0057] Referring to Figure 3 , Figure 4 and Figure 10 , it is shown that the synchronous adjusting structure 25 further comprises a second synchronization assembly 252, the second synchronization assembly 252 is in sliding connection with the directional plate 22 and the rotating shaft 131.

[0058] Specifically, the second synchronous assembly 252 comprises a connecting seat 2521 connected with the directional plate 22 and a guide sleeve 2522 sleeved on the end of the rotating shaft 131, and one end of the guide sleeve 2522 is connected with the connecting seat 2521 through a bearing.

[0059] The directional plate 22 moves in the horizontal direction under the thrust of the punch 14, and the connecting seat 2521 moves horizontally synchronously with the directional plate 22, and the horizontal movement of the connecting seat 2521 drives the guide sleeve 2522 at the end thereof to move through the bearing connection. In this process, the rotating shaft 131 provides an upward supporting force for the guide sleeve 2522, which is transmitted to the connecting seat 2521 through the guide sleeve 2522 and the bearing, and then transmitted to the directional plate 22 through the connecting seat 2521, thereby offsetting the gravity of the directional plate 22. The third guide rod 2511 in the first synchronous assembly 251 also provides an upward supporting force, and the two cooperate to ensure that the directional plate 22 always maintains a vertical posture during the entire movement process and does not tilt or skew, thereby ensuring that the axis of the directional hole 221 on the directional plate 22 always remains horizontal and collinear with the punch axis and the spray pipe axis.

[0060] Referring to Figure 5 and Figure 11 It is shown that the clamping structure 23 further comprises an abutting claw 233 and a sliding guide assembly 234. The abutting claw 233 is arranged on the inner side of the clamping arm 231, and the sliding guide assembly 234 is arranged on the clamping arm 231 and is used to slidably connect the abutting claw 233 and the clamping arm 231.

[0061] If the clamping arm 231 is fixedly connected with the spray pipe when clamping the spray pipe, the clamping arm 231 will move along the outer wall of the spray pipe when the directional plate 22 moves towards the spray pipe, which will cause wear of the outer wall of the spray pipe. Therefore, the abutting claw 233 and the sliding guide assembly 234 are arranged. When the clamping arm 231 moves towards the spray pipe, the abutting claw 233 abuts against the outer wall of the spray pipe, and when the directional plate 22 moves, the second guide rod 2341 and the abutting claw 233 slide relative to each other, the abutting claw 233 remains stationary, and the first spring 2342 is compressed and stores elastic potential energy. When the directional plate 22 is reset, the first spring 2342 releases the elastic potential energy, so that the second guide rod 2341 and the abutting claw 233 slide relative to each other again. The movement of the clamping arm 231 is realized through the relative sliding of the second guide rod 2341 and the abutting claw 233, rather than the sliding of the clamping arm 231 along the outer wall of the spray pipe, thereby eliminating the direct friction between the clamping arm 231 and the outer wall of the spray pipe and avoiding the problem of scratches and scratches on the outer wall of the spray pipe caused by relative sliding in rigid clamping.

[0062] A stamping method applied to the directional flaring stamping mechanism of an automobile spray pipe, comprising the following steps:

[0063] S1, the spray pipe to be punched is fixed beside the double-end punching mechanism 1, and multiple clamping mechanisms move at the same speed from the four sides of the spray pipe towards the spray pipe;

[0064] S2, when the 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 driving of the synchronous adjusting structure 25;

[0065] S3, the switching mechanism 13 adjusts the flaring punch 11 to the corresponding directional hole 221;

[0066] S4, the punch 14 pushes the flaring punch 11 towards the spray pipe, when the flaring punch 11 enters the directional hole 221, the punch 14 is in contact with the directional plate 22, and the directional plate 22 and the flaring punch 11 move synchronously under the pushing of the punch 14;

[0067] S5, after the flaring is completed, the switching mechanism 13 switches the forming punch 12 to the corresponding directional hole 221;

[0068] S6, the punch 14 pushes the forming punch 12 towards the spray pipe, when the forming punch 12 enters the directional hole 221, the punch 14 pushes the directional plate 22 and the forming punch 12 to move synchronously.

[0069] The above embodiment only expresses one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A directional flaring press mechanism for an automotive spray bar, characterized by, The device comprises a double-head stamping mechanism (1) and a directional mechanism (2); The double-head stamping mechanism (1) comprises a flaring die (11), a forming die (12), a switching mechanism (13) and a punch (14), the flaring die (11) and the forming die (12) are both installed on the switching mechanism (13), the switching mechanism (13) is used for selectively moving the flaring die (11) or the forming die (12) to a working position coaxial with the punch (14), the switching mechanism (13) comprises a rotating shaft (131), a rack (132) and two mounting seats (133), the rotating shaft (131) is connected with the adjusting plate (21) through a bearing, the middle part of the rack (132) is connected with the rotating shaft (131), two slide holes symmetrical about the rotating shaft (131) are formed in the rack (132), the two mounting seats (133) are respectively used for mounting the flaring die (11) and the forming die (12) and are respectively and slidably arranged in the two slide holes, the switching mechanism (13) further comprises two magnetic attraction fixing assemblies (134), the two magnetic attraction fixing assemblies (134) are respectively arranged in the two slide holes on the rack (132), and the attraction force generated by the magnetic attraction fixing assembly (134) on the mounting seat (133) fixes the mounting seat (133) on the rack (132); The directional mechanism (2) comprises an adjusting plate (21) which can be translated in two directions perpendicular to each other in a vertical plane, a directional plate (22), a directional clamping mechanism and a synchronous adjusting structure (25), the adjusting plate (21) and the directional plate (22) are arranged in parallel with each other, and the double-head stamping mechanism (1) is arranged between the adjusting plate (21) and the directional plate (22), a directional hole (221) with a horizontal axis is formed in the middle part of the directional plate (22), and when the flaring die (11) is in the directional hole (221), the directional plate (22) can be pushed by the punch (14), the directional clamping mechanism comprises a plurality of clamping structures (23), the plurality of clamping structures (23) are arranged at equal intervals on the directional plate (22) around the directional hole (221), and the synchronous adjusting structure (25) is used for connecting the directional plate (22) and the adjusting plate (21).

2. The directional flaring press mechanism for a vehicle spray bar of claim 1, wherein, A plurality of first sliding grooves (222) pointing to the center of the directional hole (221) are formed in the directional plate (22), the plurality of clamping structures (23) correspond to the plurality of first sliding grooves (222) respectively, and the clamping structure (23) comprises a clamping arm (231) and a first guide rod (232); One end of the clamping arm (231) is slidably connected with the first sliding groove (222); The axis of the first guide rod (232) points to the center of the directional hole (221) and is slidably connected with the clamping arm (231).

3. The directional flaring press mechanism for a vehicle spray bar of claim 1, wherein, The directional clamping mechanism further comprises a clamping driving structure (24), and the clamping driving structure (24) comprises a driving plate (241) and a rotary driving assembly (242); A central hole (2411) coaxial with the directional hole (221) is formed in the driving plate (241), a plurality of second sliding grooves (2412) are arranged around the central hole (2411), and the clamping arm (231) is slidably connected with the second sliding groove (2412). The rotating driving assembly (242) is used to push the driving plate (241) to rotate around the directional hole (221).

4. The directional flaring press mechanism for a vehicle spray bar of claim 1, wherein, The double-head stamping mechanism (1) further comprises a magnetic attraction docking assembly (15) used for fixedly connecting the mounting seat (133) and the stamping device (14).

5. The directional flaring press mechanism for a vehicle spray bar of claim 1, wherein, The synchronous adjusting structure (25) comprises a first synchronous assembly (251) slidably connecting the directional plate (22) and the adjusting plate (21), so that the directional plate (22) can move in a direction perpendicular to the adjusting plate (21).

6. A directional flaring press mechanism for a vehicle spray bar according to claim 5, wherein, The synchronous adjusting structure (25) further comprises a second synchronous assembly (252) slidably connecting the directional plate (22) and the rotating shaft (131).

7. The directional flaring press mechanism for a vehicle spray bar of claim 1, wherein, The clamping structure (23) further comprises an abutting claw (233) and a sliding guide assembly (234). The abutting claw (233) is arranged on the inner side of the clamping arm (231). The sliding guide assembly (234) is arranged on the clamping arm (231) and is used for slidably connecting the abutting claw (233) and the clamping arm (231).

8. A method of stamping, applied to a directional flaring stamping mechanism for a vehicle spray pipe according to any one of claims 1 to 7, characterized in that, The method comprises the following steps: S1, the spray pipe to be stamped is fixed beside the double-head stamping mechanism (1), and a plurality of clamping mechanisms move at the same speed from the periphery of the spray pipe towards the spray pipe; S2, when the plurality of clamping mechanisms abut against 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) is synchronously moved with the directional plate (22) under the driving of the synchronous adjusting structure (25); S3, the switching mechanism (13) adjusts the flaring die (11) to correspond to the directional hole (221); S4, the stamping device (14) pushes the flaring die (11) to move towards the spray pipe, and when the flaring die (11) enters the directional hole (221), the stamping device (14) contacts the directional plate (22) and pushes the directional plate (22) and the flaring die (11) to synchronously move; S5, after flaring is completed, the switching mechanism (13) switches the forming die (12) to correspond to the directional hole (221); S6, the stamping device (14) pushes the forming die (12) to move towards the spray pipe, and 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 synchronously move.

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