Intelligent arc edge pipe stamping forming equipment and stamping method thereof

Abstract

The application discloses a kind of intelligent arc edge pipe stamping forming equipment and its stamping method, specifically related to pipe processing technical field, including pedestal and the stamping device being set on pedestal, stamping device includes the top frame being set on pedestal, top frame is equipped with punch press, further include stamping assembly and positioning assembly.The application is set by stamping assembly, when arc edge stamping is carried out to pipe, in the process that punch press output end is lifted, first punch head and the position of second punch head can be automatically exchanged, without manual replacement die and punch, on the one hand, can reduce die and punch damage, shorten downtime, improve the degree of automation of equipment and processing efficiency, on the other hand, can reduce manual intervention and accident risk, improve product precision and consistency.

Description

Technical Field

[0001] This invention relates to the field of pipe fitting processing technology, and more specifically, to an intelligent arc-edge pipe fitting stamping forming equipment and its stamping method. Background Technology

[0002] Stamping, also known as the stamping process, is a metalworking method that uses a press and dies to apply external force to materials such as sheet metal, strip, tube, and profile, forcing them to undergo plastic deformation or separation within the die to obtain parts or products of the desired shape and size. Curved-edge tubing is widely used in the automotive, aerospace, and construction industries, and its stamping technology is a crucial step in manufacturing. Traditional stamping equipment primarily uses dies to apply external force to the tubing, causing plastic deformation and forming the desired curved edges.

[0003] In the current process of forming arc-edge pipe fittings, manual operation is required for tasks such as feeding, positioning and fixing, stamping control, changing different punches, changing different molds and unloading. However, this process has a low degree of automation and the steps are relatively cumbersome. Manual operation is prone to errors, which can lead to a decrease in product precision and inability to guarantee product consistency. On the other hand, it may also cause mold damage, increase maintenance costs and affect production efficiency.

[0004] This invention provides an intelligent arc-edge pipe stamping forming equipment and its stamping method, aiming to solve the problems of low automation in the arc-edge pipe stamping forming process, which leads to decreased product precision, mold damage, increased maintenance costs, and reduced production efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent arc-edge pipe stamping forming equipment and its stamping method, so as to solve the problems mentioned in the background art, such as low automation in the arc-edge pipe stamping forming process, resulting in decreased product precision and mold damage, increased maintenance costs, and reduced production efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an intelligent arc-edge tube stamping forming equipment, comprising a base and a stamping device disposed on the base, and further comprising:

[0007] A stamping assembly, which is mounted on the stamping device, is used to stamp the arc edge of the pipe fitting and to switch the stamping head during the stamping process;

[0008] A positioning component is disposed on the base and is used to position and support the tube during the stamping process.

[0009] Preferably, the stamping assembly includes a stamping base, the bottom of the stamping base is provided with an installation groove, an installation rod is provided inside the installation groove, a support plate is fixedly connected to one end of the installation rod extending out of the installation groove, a first stamping head and a second stamping head are fixedly connected to both ends of the support plate respectively, the first stamping head is used to pre-bend the pipe fitting, and the second stamping head is used to perform arc edge forming on the pre-bent pipe fitting;

[0010] A rotating block is rotatably connected to the top of the mounting groove, and a fourth elastic element is sleeved in the mounting groove between the rotating block and the mounting rod.

[0011] Preferably, the mounting groove has two first guide grooves and two second guide grooves symmetrically formed inside. The two first guide grooves are both vertically arranged, and the two second guide grooves surround the inner wall of the mounting groove. One end of each of the two second guide grooves is connected to the top of one of the first guide grooves, and the other end of each of the two second guide grooves is connected to the bottom of the other first guide groove. The depth of the two second guide grooves at the top end of the corresponding first guide groove is higher than the corresponding first guide groove, and the depth of the two second guide grooves at the bottom end of the corresponding first guide groove is lower than the corresponding first guide groove.

[0012] Preferably, the mounting rod has two symmetrically formed telescopic grooves on its outer circumference. A telescopic rod is slidably connected in each of the two telescopic grooves. A first elastic element is connected between the end of each telescopic rod located inside the corresponding telescopic groove and the corresponding telescopic groove. A guide wheel is rotatably connected to the outer wall of the end of each telescopic rod located outside the corresponding telescopic groove. A ball bearing is spherically hinged to the end of each telescopic rod located outside the corresponding telescopic groove.

[0013] Both guide wheels are slidably connected within the two first guide grooves and the two second guide grooves, and both balls are in contact with the inner walls of the two first guide grooves and the two second guide grooves under the thrust of the corresponding first elastic element.

[0014] Preferably, the positioning component includes a support base, the support base having a lifting groove inside, and a placement groove communicating with the lifting groove at the top of the support base. The diameter of the placement groove is larger than the outer diameter of the pipe. A piston plate is slidably connected inside the lifting groove. A second elastic element is connected between the bottom of the piston plate and the lifting groove. A support sleeve slidably connected inside the placement groove is fixedly connected to the top of the piston plate. A limit groove is formed at the top of the support sleeve. A guide rod is slidably connected inside the limit groove. The diameter of the guide rod is smaller than the inner diameter of the pipe. A third elastic element is connected between the bottom of the guide rod and the limit groove.

[0015] Preferably, the support base has a plurality of first positioning slots evenly distributed inside, which communicate with the interior of the placement slot. Each first positioning slot has a first positioning block slidably connected inside. Below the plurality of first positioning slots, the support base has a first driving slot, which communicates with the interior of the lifting slot. The plurality of first positioning slots are all connected to the first driving slot. A driving ring is slidably connected inside the first driving slot. The top of the driving ring and the bottom of each first positioning block are both set as wedge-shaped surfaces that can cooperate with each other. When the driving ring moves upward inside the first driving slot, the driving ring can push the plurality of first positioning blocks to move synchronously towards the placement slot.

[0016] Preferably, the guide rod has a plurality of second positioning grooves evenly distributed inside, which communicate with the interior of the placement groove. A second positioning block is slidably connected inside each of the second positioning grooves. A second driving groove is distributed below the plurality of second positioning grooves inside the guide rod. The second driving groove communicates with the interior of the limiting groove. The plurality of second positioning grooves are all connected to each of the second driving grooves. A driving block is slidably connected inside the second driving groove. The top of the driving block and the bottom of each of the second positioning blocks are set as wedge-shaped surfaces that can cooperate with each other. When the driving block moves upward inside the second driving groove, the driving block can push the plurality of second positioning blocks to move synchronously towards the placement groove.

[0017] Preferably, the top of the support base is provided with a stamping groove concentrically arranged with the placement groove, and the top of each first positioning block and each second positioning block near the placement groove is provided with a wedge-shaped surface, which is used to press multiple first positioning blocks and multiple second positioning blocks into the corresponding first positioning groove and corresponding second positioning groove during the process of placing the pipe into the placement groove.

[0018] Preferably, the stamping device includes a top frame disposed above the base, a stamping machine is mounted on the top frame, a plurality of guide columns are fixedly connected between the top frame and the base, a movable block fixedly connected to the output end of the stamping machine is slidably connected to the plurality of guide columns, and the top of the stamping base is fixedly connected to the bottom of the movable block.

[0019] A stamping method for an intelligent arc-edge tube stamping forming equipment includes the following steps:

[0020] S1. Place the tube to be stamped between the placement slot and the guide rod;

[0021] S2. After placement, start the stamping machine to move the stamping assembly downwards and pre-bend the pipe through the first stamping head;

[0022] S4. After the pre-bending is completed, start the stamping machine to drive the stamping assembly to move upward and automatically switch the positions of the first stamping head and the second stamping head.

[0023] S5. After the position is changed, the stamping machine is restarted to drive the stamping assembly to move downward, and the second stamping head is used to form the arc edge of the pipe.

[0024] S6. After the arc edge of the pipe fitting is formed, the stamping machine is restarted to drive the stamping assembly to move upward, complete the stamping work, and automatically switch the positions of the first stamping head and the second stamping head again.

[0025] The technical effects and advantages of this invention are as follows:

[0026] 1. By setting up the stamping components, the present invention enables the positions of the first stamping head and the second stamping head to be automatically switched during the process of raising the output end of the stamping machine when the arc edge of the pipe is stamped. There is no need to manually change the mold and punch. On the one hand, it can reduce the damage to the mold and punch, shorten the downtime, and improve the automation level and processing efficiency of the equipment. On the other hand, it can reduce manual intervention and accident risk, and improve product accuracy and consistency.

[0027] 2. By setting up positioning components, this invention can automatically position and fix the pipe fitting externally and internally during the arc-edge stamping process. On the one hand, it can prevent the pipe fitting to be stamped from shifting during the stamping process, preventing it from expanding or shifting outward, and ensuring that the pipe fitting remains stable during stamping. On the other hand, it can prevent the pipe fitting from expanding and shifting outward, as well as from concave and deforming inward during the stamping process, further improving the stability of the pipe fitting during stamping and further improving the accuracy of the pipe fitting after forming. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 This is a schematic diagram of the positioning component structure of the present invention.

[0030] Figure 3 This is an exploded view of the guide rod portion of the present invention.

[0031] Figure 4 This is an exploded view of the drive ring portion of the present invention.

[0032] Figure 5 This is a cross-sectional view of the positioning component structure of the present invention.

[0033] Figure 6 This is a schematic diagram of the stamping component structure of the present invention.

[0034] Figure 7This is a schematic diagram of the internal structure of the stamping seat of the present invention.

[0035] Figure 8 This is a schematic diagram of the mounting rod portion of the present invention.

[0036] Figure 9 This is a schematic diagram of the telescopic rod part of the present invention.

[0037] Figure 10 For the present invention Figure 7 Enlarged schematic diagram of part A.

[0038] Figure 11 This is a schematic diagram of the pre-bent state of the pipe fitting of the present invention.

[0039] Figure 12 This is a schematic diagram showing the completed stamping state of the pipe fitting of the present invention.

[0040] The attached figures are labeled as follows: 1. Base; 2. Stamping device; 21. Top frame; 22. Stamping machine; 23. Guide column; 24. Movable block; 3. Stamping assembly; 31. Stamping seat; 32. Mounting groove; 33. Mounting rod; 34. Support plate; 35. First stamping head; 36. Second stamping head; 37. First guide groove; 38. Second guide groove; 39. Telescopic groove; 310. Telescopic rod; 311. First elastic element; 312. Guide wheel; 313. Ball bearing; 314. Rotating block; 31 5. Fourth elastic element; 4. Positioning assembly; 41. Support base; 42. Lifting groove; 43. Placement groove; 44. Piston plate; 45. Second elastic element; 46. Support sleeve; 47. Limiting groove; 48. Guide rod; 49. Third elastic element; 410. First positioning groove; 411. First positioning block; 412. First drive groove; 413. Drive ring; 414. Second positioning groove; 415. Second positioning block; 416. Second drive groove; 417. Drive block; 418. Stamping groove. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Example 1

[0043] In the current process of forming arc-edge pipe fittings, manual operation is required for tasks such as feeding, positioning and fixing, stamping control, changing different punches, changing different molds and unloading. However, this process has a low degree of automation and the steps are relatively cumbersome. Manual operation is prone to errors, which can lead to a decrease in product precision and inability to guarantee product consistency. On the other hand, it may also cause mold damage, increase maintenance costs and affect production efficiency.

[0044] refer to Figures 1 to 12 An intelligent arc-edge pipe stamping forming equipment according to an embodiment of the present invention includes a base 1 and a stamping device 2 disposed on the base 1. The stamping device 2 includes a top frame 21 disposed above the base 1. A stamping machine 22 is mounted on the top frame 21. A plurality of guide columns 23 are fixedly connected between the top frame 21 and the base 1. Movable blocks 24 that are fixedly connected to the output end of the stamping machine 22 are slidably connected to the plurality of guide columns 23.

[0045] refer to Figure 1 , Figures 6 to 10 It also includes a stamping assembly 3, which includes a stamping base 31. The bottom of the stamping base 31 is provided with an installation groove 32. An installation rod 33 is provided inside the installation groove 32. A support plate 34 is fixedly connected to one end of the installation rod 33 that extends out of the installation groove 32. A first stamping head 35 and a second stamping head 36 are fixedly connected to both ends of the support plate 34, respectively. The bottom of the first stamping head 35 is a tapered head, which is used to pre-bend the pipe. The bottom limit rod of the second stamping head 36 has a diameter smaller than the inner diameter of the pipe, which is used to limit the inside of the pipe during the forming process.

[0046] A rotating block 314 is rotatably connected to the top of the mounting groove 32. A fourth elastic element 315 is sleeved in the mounting groove 32 and connected between the rotating block 314 and the mounting rod 33. The rotating block 314 is used to rotate when the mounting rod 33 rotates to prevent the fourth elastic element 315 from being excessively twisted.

[0047] refer to Figure 10The mounting groove 32 has two first guide grooves 37 and two second guide grooves 38 symmetrically arranged inside. The two first guide grooves 37 are both vertically arranged, and the two second guide grooves 38 surround the inner wall of the mounting groove 32. One end of each of the two second guide grooves 38 is connected to the top of one of the first guide grooves 37, and the other end is connected to the bottom of the other first guide groove 37. The depth of the two second guide grooves 38 at the top end of the corresponding first guide groove 37 is higher than that of the corresponding first guide groove 37, so that the telescopic rod 310 and the guide wheel 312 can enter the second guide groove 38 when they are at the top of the first guide groove 37. The depth of the two second guide grooves 38 at the bottom end of the corresponding first guide groove 37 is lower than that of the corresponding first guide groove 37, so that the telescopic rod 310 and the guide wheel 312 will not enter the second guide groove 38 when they move upward in the first guide groove 37.

[0048] refer to Figures 8 to 10 The mounting rod 33 has two symmetrically formed telescopic grooves 39 on its outer circumference. Telescopic rods 310 are slidably connected in both telescopic grooves 39. A first elastic element 311 is connected between the end of the two telescopic rods 310 located inside the corresponding telescopic groove 39 and the corresponding telescopic groove 39. A guide wheel 312 is rotatably connected to the outer wall of the end of the two telescopic rods 310 located outside the corresponding telescopic groove 39. A ball bearing 313 is hinged to the end of the two telescopic rods 310 located outside the corresponding telescopic groove 39. The guide wheel 312 and the ball bearing 313 are used to reduce the friction when the telescopic rods 310 move.

[0049] Both guide wheels 312 are slidably connected in the two first guide grooves 37 and the two second guide grooves 38, and both balls 313 are in contact with the inner walls of the two first guide grooves 37 and the two second guide grooves 38 under the thrust of the corresponding first elastic element 311.

[0050] refer to Figures 1 to 5 It also includes a positioning component 4, which is set on the base 1 and is used to position and support the tube during the stamping process. The positioning component 4 includes a support base 41, a lifting groove 42 is opened inside the support base 41, and a placement groove 43 communicating with the lifting groove 42 is opened on the top of the support base 41. The diameter of the placement groove 43 is larger than the outer diameter of the tube. A piston plate 44 is slidably connected inside the lifting groove 42. A second elastic element 45 is connected between the bottom of the piston plate 44 and the lifting groove 42. A support sleeve 46 is fixedly connected to the top of the piston plate 44 and slidably connected inside the placement groove 43. A limit groove 47 is opened on the top of the support sleeve 46. A guide rod 48 is slidably connected inside the limit groove 47. The diameter of the guide rod 48 is smaller than the inner diameter of the tube. A third elastic element 49 is connected between the bottom of the guide rod 48 and the limit groove 47. A stamping groove 418 is opened on the top of the support base 41 and is concentrically arranged with the placement groove 43.

[0051] In actual operation, the tube to be stamped is first placed between the placement slot 43 and the guide rod 48. The support sleeve 46 can support the tube to be stamped. After placement, the stamping machine 22 is started. The output end of the stamping machine 22 will drive the movable block 24 and the stamping seat 31 to move downward under the guidance of multiple guide columns 23. During the downward movement of the stamping seat 31, the first stamping head 35 and the second stamping head 36 will be driven downward through the mounting rod 33 and the support plate 34. Since the first stamping head 35 is located directly below the stamping seat 31 at this time, during the downward movement of the stamping seat 31 and the first stamping head 35, the conical structure at the bottom of the first stamping head 35 will contact the top of the tube to be stamped and push the tube to be stamped to move downward in the placement slot 43.

[0052] As the tube to be stamped moves downward, it will push the support sleeve 46 and piston plate 44 to move downward in the lifting groove 42 and compress the second elastic element 45. As the first stamping head 35 pushes the tube to be stamped to move downward in the placement groove 43, it will simultaneously push the first stamping head 35 and support plate 34 to move upward, and drive the mounting rod 33 to compress the fourth elastic element 315 to move upward in the mounting groove 32. As the mounting rod 33 moves upward in the mounting groove 32, it will drive the two guide wheels 312 to move upward in the corresponding first guide groove 37 through the two telescopic rods 310.

[0053] refer to Figure 11 When the piston plate 44 moves downward to the limit position in the lifting groove 42, the top of the first punch head 35 will contact the bottom of the punch seat 31. Then, the two telescopic rods 310 and the two guide wheels 312 will move to the top of the two first guide grooves 37 and move to the corresponding second guide groove 38 under the thrust of the corresponding first elastic element 311. After the punch seat 31 and the first punch head 35 move downward to the limit position, the tube to be punched will be pre-bent through the conical structure at the bottom of the first punch head 35.

[0054] After the pre-bending is completed, the output end of the control press 22 is raised. The output end of the press 22 will drive the stamping seat 31 to move upward through the movable block 24. During the upward movement of the stamping seat 31, the mounting rod 33 will move downward in the mounting groove 32 under the action of the thrust of the fourth elastic element 315 and the weight of the first stamping head 35 and the second stamping head 36. Since the two telescopic rods 310 and the two guide wheels 312 are located in the corresponding second guide grooves 38 at this time, the mounting rod 33 will rotate under the action of the two guide wheels 312 and the two second guide grooves 38 during the downward movement in the mounting groove 32, so that the positions of the first stamping head 35 and the second stamping head 36 are automatically switched, so that the second stamping head 36 is located directly below the stamping seat 31. When the mounting rod 33 returns to the bottom position, the two telescopic rods 310 and the two guide wheels 312 will move back from the two second guide grooves 38 to the bottom of the two first guide grooves 37.

[0055] refer to Figure 12 After the positions of the first stamping head 35 and the second stamping head 36 are swapped, the output end of the control stamping machine 22 is moved downward again, and the stamping seat 31 and the second stamping head 36 are moved downward. During the downward movement of the stamping seat 31 and the second stamping head 36, the limiting rod at the bottom of the second stamping head 36 will first insert into the pipe after the edge is folded to limit the inside of the pipe. Then, when the second stamping head 36 moves downward to the limit position, the arc edge stamping work of the pipe is completed.

[0056] After the arc edge stamping is completed and the output end of the stamping machine 22 is lifted, the mounting rod 33 moves downward in the mounting groove 32. During this process, the positions of the first stamping head 35 and the second stamping head 36 will be automatically switched again, so that the first stamping head 35 is located directly below the stamping seat 31, in preparation for the next pipe fitting stamping. This reduces manual intervention and accident risks, shortens downtime, and improves the automation level and processing efficiency of the equipment.

[0057] It should be noted that during the downward movement of the first stamping head 35 to perform arc edge stamping on the pipe fitting, refer to Figures 10 to 12 The top of the guide rod 48 can always be in contact with the bottom of the first stamping head 35 under the thrust of the third elastic element 49, which can prevent the tube from being squeezed inward during the arc edge stamping process and avoid deformation of the tube. At the same time, after the stamping is completed, the tube is pushed out of the placement groove 43 for easy picking.

[0058] In summary, by setting up the stamping assembly 3, during the arc edge stamping of the pipe fitting, the positions of the first stamping head 35 and the second stamping head 36 can be automatically switched during the lifting of the output end of the stamping machine 22. There is no need to manually change the mold and punch. On the one hand, it can reduce the damage to the mold and punch, shorten the downtime, and improve the automation level and processing efficiency of the equipment. On the other hand, it can reduce manual intervention and accident risks, and improve product accuracy and consistency.

[0059] Example 2

[0060] In actual stamping processes, the structure in the above embodiments cannot automatically position and fix the tube. On the one hand, this can cause the stamped tube to shift during the stamping process, making it impossible to ensure the stability of the tube during stamping. On the other hand, it may cause the tube to expand and shift outward or deform inward during the stamping process, resulting in a decrease in the accuracy of the tube after forming. Therefore, this embodiment improves the device described in the above embodiments.

[0061] refer to Figures 2 to 5 The support base 41 has a plurality of first positioning grooves 410 evenly distributed inside, which are connected to the interior of the placement groove 43. Each first positioning groove 410 is slidably connected to a first positioning block 411. The support base 41 has a first driving groove 412 distributed below the plurality of first positioning grooves 410. The first driving groove 412 is connected to the interior of the lifting groove 42. The plurality of first positioning grooves 410 are all connected to the first driving groove 412. A driving ring 413 is slidably connected inside the first driving groove 412. The top of the driving ring 413 and the bottom of each first positioning block 411 are both set as wedge-shaped surfaces that can cooperate with each other. When the driving ring 413 moves upward inside the first driving groove 412, the driving ring 413 can push the plurality of first positioning blocks 411 to move synchronously toward the placement groove 43.

[0062] refer to Figure 3 and Figure 5 The guide rod 48 has a plurality of second positioning grooves 414 evenly distributed inside, which are connected to the interior of the placement groove 43. Each second positioning groove 414 is slidably connected to a second positioning block 415. The guide rod 48 has a second driving groove 416 distributed below the plurality of second positioning grooves 414. The second driving groove 416 is connected to the interior of the limiting groove 47. The plurality of second positioning grooves 414 are connected to each second driving groove 416. A driving block 417 is slidably connected inside the second driving groove 416. The top of the driving block 417 and the bottom of each second positioning block 415 are set as wedge-shaped surfaces that can cooperate with each other. When the driving block 417 moves upward inside the second driving groove 416, the driving block 417 can push the plurality of second positioning blocks 415 to move synchronously toward the placement groove 43.

[0063] refer to Figure 5 Each first positioning block 411 and each second positioning block 415 has a wedge-shaped top on the side near the placement groove 43, which is used to press multiple first positioning blocks 411 and multiple second positioning blocks 415 into the corresponding first positioning groove 410 and the corresponding second positioning groove 414 during the process of placing the pipe into the placement groove 43. Both the first positioning block 411 and the second positioning block 415 are made of elastic material.

[0064] In actual operation, when the first stamping head 35 or the second stamping head 36 pushes the tube to be stamped downward, the tube to be stamped will push the support sleeve 46 to drive the piston plate 44 to move downward in the lifting groove 42. During the downward movement, the piston plate 44 will squeeze the gas in the lifting groove 42 into the first drive groove 412, thereby pushing the drive ring 413 to move upward in the first drive groove 412. During the upward movement of the drive ring 413 in the first drive groove 412, it will push multiple first positioning blocks 411 to move synchronously towards the placement groove 43 through cooperation with the bottom wedge surface of each first positioning block 411. This will automatically position and fix the tube to be stamped in the placement groove 43, prevent the tube to be stamped from shifting during the stamping process, prevent it from expanding or shifting outward, ensure that the tube remains stable during stamping, and further improve the accuracy of the tube after forming.

[0065] Simultaneously, as the first stamping head 35 or the second stamping head 36 moves downward, it drives the guide rod 48 to move downward within the limiting groove 47 and compresses the third elastic element 49. At this time, the gas in the limiting groove 47 enters the second driving groove 416 and pushes the driving block 417 upward. As the driving block 417 moves upward, it cooperates with the bottom wedge-shaped surface of each second positioning block 415 to push multiple second positioning blocks 415 to move synchronously towards the placement groove 43, thereby automatically supporting the tube from the inside, further improving the stability of the tube during the stamping process, preventing the tube from concave or deforming during the stamping process, and ensuring uniform force distribution.

[0066] When the stamping work is completed and the output end of the stamping machine 22 is lifted, since the first positioning block 411 and the second positioning block 415 are both made of elastic material, the second elastic element 45 and the third elastic element 49 can automatically push the piston plate 44 and the guide rod 48 back to the initial position. The gas in the first drive groove 412 and the second drive groove 416 will return to the lifting groove 42 and the limiting groove 47, which will cause the drive ring 413 and the drive block 417 to move downward back to the initial position, so that the multiple first positioning blocks 411 and the multiple second positioning blocks 415 can automatically release the limit on the pipe, and the pipe can be taken out normally.

[0067] In summary, by setting the positioning component 4, during the arc-edge stamping process of the pipe fitting, multiple first positioning blocks 411 and multiple second positioning blocks 415 can automatically position and fix the pipe fitting externally and internally. On the one hand, it can prevent the pipe fitting to be stamped from shifting during the stamping process, prevent it from expanding or shifting outward, and ensure that the pipe fitting remains stable during stamping. On the other hand, it can prevent the pipe fitting from expanding and shifting outward, as well as from concave and deforming inward during the stamping process, further improving the stability of the pipe fitting during stamping and further improving the accuracy of the pipe fitting after forming.

[0068] Example 3

[0069] A stamping method for an intelligent arc-edge tube stamping forming equipment includes the following steps:

[0070] S1. Place the tube to be stamped between the placement slot 43 and the guide rod 48;

[0071] S2. After placement, start the stamping machine 22 to drive the stamping assembly 3 to move downward, and pre-bend the pipe through the first stamping head 35.

[0072] S4. After the pre-bending is completed, the stamping machine 22 is started to drive the stamping assembly 3 to move upward, and the positions of the first stamping head 35 and the second stamping head 36 are automatically swapped.

[0073] S5. After the position is changed, the stamping machine 22 is restarted to drive the stamping assembly 3 to move downward, and the second stamping head 36 is used to form the arc edge of the pipe.

[0074] S6. After the arc edge of the pipe fitting is formed, the stamping machine 22 is started again to drive the stamping assembly 3 to move upward to complete the stamping work, and the positions of the first stamping head 35 and the second stamping head 36 are automatically swapped again.

[0075] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A smart arc-edge pipe fitting stamping forming equipment, comprising a base (1) and a stamping device (2) disposed on the base (1), characterized in that, Also includes: The stamping assembly (3) is mounted on the stamping device (2) and is used to stamp the arc edge of the pipe fitting and to switch the stamping head during the stamping process. Positioning component (4), which is disposed on the base (1) and is used to position and support the tube during the stamping process; The positioning component (4) includes a support base (41), a lifting groove (42) is provided inside the support base (41), and a placement groove (43) communicating with the lifting groove (42) is provided on the top of the support base (41). The diameter of the placement groove (43) is larger than the outer diameter of the pipe. A piston plate (44) is slidably connected inside the lifting groove (42). A second elastic element (45) is connected between the bottom of the piston plate (44) and the lifting groove (42). A support sleeve (46) is fixedly connected to the top of the piston plate (44) and slidably connected inside the placement groove (43). A limit groove (47) is provided on the top of the support sleeve (46). A guide rod (48) is slidably connected inside the limit groove (47). The diameter of the guide rod (48) is smaller than the inner diameter of the pipe. A third elastic element (49) is connected between the bottom of the guide rod (48) and the limit groove (47). The support base (41) has a plurality of first positioning grooves (410) that are uniformly connected to the interior of the placement groove (43). Each first positioning groove (410) is slidably connected to a first positioning block (411). The support base (41) has a first driving groove (412) below the plurality of first positioning grooves (410). The first driving groove (412) is connected to the interior of the lifting groove (42). The plurality of first positioning grooves (410) are all connected to the first driving groove (412). A driving ring (413) is slidably connected to the interior of the first driving groove (412). The top of the driving ring (413) and the bottom of each first positioning block (411) are both set as wedge-shaped surfaces that can cooperate with each other. When the driving ring (413) moves upward inside the first driving groove (412), the driving ring (413) can push the plurality of first positioning blocks (411) to move synchronously toward the placement groove (43). The guide rod (48) has a plurality of second positioning grooves (414) that are evenly connected to the interior of the placement groove (43). Each second positioning groove (414) is slidably connected to a second positioning block (415). The guide rod (48) has a second driving groove (416) below the plurality of second positioning grooves (414). The second driving groove (416) is connected to the interior of the limiting groove (47). The plurality of second positioning grooves (414) are connected to each second driving groove (416). A driving block (417) is slidably connected to the interior of the second driving groove (416). The top of the driving block (417) and the bottom of each second positioning block (415) are set as wedge-shaped surfaces that can cooperate with each other. When the driving block (417) moves upward inside the second driving groove (416), the driving block (417) can push the plurality of second positioning blocks (415) to move synchronously toward the placement groove (43).

2. The intelligent arc-edge tube stamping forming equipment according to claim 1, characterized in that: The stamping assembly (3) includes a stamping base (31), and a mounting groove (32) is provided at the bottom of the stamping base (31). A mounting rod (33) is provided inside the mounting groove (32). A support plate (34) is fixedly connected to one end of the mounting rod (33) extending out of the mounting groove (32). A first stamping head (35) and a second stamping head (36) are fixedly connected to both ends of the support plate (34). The first stamping head (35) is used to pre-bend the pipe fitting, and the second stamping head (36) is used to perform arc edge forming on the pre-bent pipe fitting. A rotating block (314) is rotatably connected to the top of the mounting groove (32), and a fourth elastic element (315) sleeved in the mounting groove (32) is connected between the rotating block (314) and the mounting rod (33).

3. The intelligent arc-edge tube stamping forming equipment according to claim 2, characterized in that: The mounting groove (32) has two first guide grooves (37) and two second guide grooves (38) symmetrically arranged inside. The two first guide grooves (37) are both vertically arranged, and the two second guide grooves (38) surround the inner wall of the mounting groove (32). One end of each of the two second guide grooves (38) is connected to the top of one of the first guide grooves (37), and the other end is connected to the bottom of the other first guide groove (37). The depth of the two second guide grooves (38) at the top end of the corresponding first guide groove (37) is higher than that of the corresponding first guide groove (37), and the depth of the two second guide grooves (38) at the bottom end of the corresponding first guide groove (37) is lower than that of the corresponding first guide groove (37).

4. The intelligent arc-edge tube stamping forming equipment according to claim 3, characterized in that: The mounting rod (33) has two symmetrically arranged telescopic grooves (39) on its outer circumference. Telescopic rods (310) are slidably connected in both telescopic grooves (39). A first elastic element (311) is connected between the end of the two telescopic rods (310) located inside the corresponding telescopic groove (39) and the corresponding telescopic groove (39). A guide wheel (312) is rotatably connected to the outer wall of the end of the two telescopic rods (310) located outside the corresponding telescopic groove (39). A ball bearing (313) is spherically hinged to the end of the two telescopic rods (310) located outside the corresponding telescopic groove (39). Both guide wheels (312) are slidably connected in the two first guide grooves (37) and the two second guide grooves (38), and both balls (313) are in contact with the inner walls of the two first guide grooves (37) and the two second guide grooves (38) under the thrust of the corresponding first elastic element (311).

5. The intelligent arc-edge tube stamping forming equipment according to claim 4, characterized in that: The top of the support base (41) is provided with a stamping groove (418) concentrically arranged with the placement groove (43). The top of each first positioning block (411) and each second positioning block (415) near the placement groove (43) is set as a wedge-shaped surface, which is used to squeeze multiple first positioning blocks (411) and multiple second positioning blocks (415) into the corresponding first positioning groove (410) and the corresponding second positioning groove (414) during the process of placing the pipe into the placement groove (43).

6. The intelligent arc-edge tube stamping forming equipment according to claim 5, characterized in that: The stamping device (2) includes a top frame (21) disposed above the base (1), a stamping machine (22) is mounted on the top frame (21), a plurality of guide columns (23) are fixedly connected between the top frame (21) and the base (1), and a movable block (24) fixedly connected to the output end of the stamping machine (22) is slidably connected to the plurality of guide columns (23), and the top of the stamping seat (31) is fixedly connected to the bottom of the movable block (24).

7. A stamping method for an intelligent arc-edge pipe fitting stamping forming equipment, employing the intelligent arc-edge pipe fitting stamping forming equipment as described in claim 6, characterized in that, Includes the following steps: S1. Place the tube to be stamped between the placement slot (43) and the guide rod (48); S2. After placement, start the stamping machine (22) to drive the stamping assembly (3) to move downward and pre-bend the pipe through the first stamping head (35); S4. After the pre-bending is completed, start the stamping machine (22) to drive the stamping assembly (3) to move upward and automatically switch the positions of the first stamping head (35) and the second stamping head (36). S5. After the position is changed, the stamping machine (22) is started again to drive the stamping assembly (3) to move downward and the pipe fitting is formed by the second stamping head (36). S6. After the pipe fitting is formed by the arc edge, the stamping machine (22) is started again to drive the stamping assembly (3) to move upward and complete the stamping work. The positions of the first stamping head (35) and the second stamping head (36) are changed automatically again.

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