Intelligent arc-edge pipe fitting punch forming equipment and punching method thereof

Abstract

The invention discloses intelligent arc-edge pipe fitting punch forming equipment and a punching method thereof, and particularly relates to the technical field of pipe fitting machining, the intelligent arc-edge pipe fitting punch forming equipment comprises a base and a punching device arranged on the base, the punching device comprises a top frame arranged above the base, a punching machine is installed on the top frame, and the intelligent arc-edge pipe fitting punch forming equipment further comprises a punching assembly and a positioning assembly. Through the arrangement of the punching assembly, when arc edge punching is carried out on a pipe fitting and in the process that the output end of the punching machine is lifted, the positions of the first punching head and the second punching head can be automatically exchanged, a die and the punches do not need to be manually replaced, on one hand, damage to the die and the punches can be reduced, and the downtime is shortened; and on the other hand, manual intervention and accident risks can be reduced, and the product precision and consistency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe processing, more particularly, the present application relates to an intelligent arc edge pipe stamping forming equipment and a stamping method thereof. BACKGROUND

[0002] Stamping forming, also known as stamping process, is a metal processing method that applies external force to sheet metal, strip metal, pipe and profiled material and other materials in the mold by using a press and a mold, forcing them to produce plastic deformation or separation in the mold, so as to obtain parts or products with desired shape and size. Arc edge pipe is widely used in the fields of automobile, aerospace, building, etc., and its stamping forming technology is an important link in manufacturing industry. The traditional stamping equipment mainly applies external force to the pipe through the mold to make it produce plastic deformation, so as to form the required arc edge.

[0003] In the process of arc edge stamping forming of the existing pipe, manual operation is required for pipe feeding, positioning and fixing, stamping control, replacing different punches, replacing different molds and discharging, etc. However, this process has low automation degree and is relatively complicated. Errors are likely to occur during manual operation, which may lead to product precision decline and inconsistency on the one hand, and may cause mold damage, increase maintenance cost and affect production efficiency on the other hand.

[0004] The present application provides an intelligent arc edge pipe stamping forming equipment and a stamping method thereof, aiming to solve the problem of low automation degree in the process of arc edge pipe stamping forming, which leads to product precision decline and mold damage, increases maintenance cost and affects production efficiency. SUMMARY

[0005] The present application aims to provide an intelligent arc edge pipe stamping forming equipment and a stamping method thereof to solve the problem of low automation degree in the process of arc edge pipe stamping forming, which leads to product precision decline and mold damage, increases maintenance cost and affects production efficiency.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an intelligent arc edge pipe stamping forming equipment, comprising a base and a stamping device arranged on the base, further comprising: a stamping assembly arranged on the stamping device for stamping the arc edge of the pipe and switching the stamping head during stamping; a positioning assembly arranged on the base for positioning and supporting and fixing the pipe during stamping forming.

[0007] Preferably, the stamping assembly comprises a stamping seat, the bottom of the stamping seat is provided with a mounting groove, the inside of the mounting groove is provided with a mounting rod, one end of the mounting rod extending out of the mounting groove is fixedly connected with a support plate, the both ends of the support plate are fixedly connected with a first stamping head and a second stamping head respectively, the first stamping head is used for pre-bending the pipe, and the second stamping head is used for arc edge forming on the pre-bent pipe. The top of the mounting groove is rotatably connected with a rotating block, and the rotating block is connected with the mounting rod through a fourth elastic element sleeved in the mounting groove.

[0008] Preferably, the inside of the mounting groove is symmetrically provided with two first guide grooves and two second guide grooves, the two first guide grooves are vertically arranged, and the two second guide grooves are arranged around the inner wall of the mounting groove, one end of each of the two second guide grooves is in communication with the top of one of the first guide grooves, and the other end of each of the two second guide grooves is in communication with the bottom of the other first guide groove, the depth of each of the two second guide grooves at the top end corresponding to the first guide groove is higher than that of the corresponding first guide groove, and the depth of each of the two second guide grooves at the bottom end corresponding to the first guide groove is lower than that of the corresponding first guide groove.

[0009] Preferably, the circumferential outer wall of the mounting rod is symmetrically provided with two telescopic grooves, two telescopic rods are slidably connected in the two telescopic grooves, a first elastic element is connected between the one end of each of the two telescopic rods located in the inside of the corresponding telescopic groove and the corresponding telescopic groove, a guide wheel is rotatably connected to the outer wall of the one end of each of the two telescopic rods located outside the corresponding telescopic groove, and a ball is ball-jointed to the end of each of the two telescopic rods located outside the corresponding telescopic groove. The two guide wheels are slidably connected in the two first guide grooves and the two second guide grooves, and the two balls are in contact with the inner walls of the two first guide grooves and the two second guide grooves under the pushing force of the corresponding first elastic element.

[0010] Preferably, the positioning assembly comprises a support seat, the inside of the support seat is provided with a lifting groove, the top of the support seat is provided with a placing groove in communication with the lifting groove, the diameter of the placing groove is greater than the outer diameter of the pipe, a piston plate is slidably connected in 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 in the inside of the placing groove is fixedly connected to the top of the piston plate, a limiting groove is formed in the top of the support sleeve, a guide rod is slidably connected in the inside of the limiting groove, the diameter of the guide rod is smaller than the inner diameter of the pipe, and a third elastic element is connected between the bottom of the guide rod and the limiting groove.

[0011] Preferably, the inside of the support seat is uniformly provided with a plurality of first positioning grooves in communication with the inside of the placing groove, the inside of each first positioning groove is slidably connected with a first positioning block, the inside of the support seat is provided with a first driving groove below the plurality of first positioning grooves, the first driving groove is in communication with the inside of the lifting groove, the plurality of first positioning grooves are in communication with the first driving groove, the inside of the first driving groove is slidably connected with a driving ring, the top of the driving ring and the bottom of each first positioning block are provided with wedge surfaces that can cooperate with each other, and when the driving ring moves upward in the first driving groove, the driving ring can push the plurality of first positioning blocks to move synchronously toward the direction of the placing groove.

[0012] Preferably, the inside of the support seat is uniformly provided with a plurality of first positioning grooves in communication with the inside of the placing groove, the inside of each first positioning groove is slidably connected with a first positioning block, the inside of the support seat is provided with a first driving groove below the plurality of first positioning grooves, the first driving groove is in communication with the inside of the lifting groove, the plurality of first positioning grooves are in communication with the first driving groove, the inside of the first driving groove is slidably connected with a driving ring, the top of the driving ring and the bottom of each first positioning block are provided with wedge surfaces that can cooperate with each other, and when the driving ring moves upward in the first driving groove, the driving ring can push the plurality of first positioning blocks to move synchronously toward the direction of the placing groove.

[0013] Preferably, the top of the support seat is provided with a punching groove concentrically arranged with the placing groove, the top of each first positioning block and each second positioning block near the side of the placing groove is provided with a wedge surface for extruding the plurality of first positioning blocks and the plurality of second positioning blocks into the corresponding first positioning grooves and second positioning grooves during the process of placing the pipe into the placing groove.

[0014] Preferably, the punching device comprises a top frame arranged above the base, a punching machine is installed on the top frame, a plurality of guide columns are fixedly connected between the top frame and the base, a movable block fixedly connected with the output end of the punching machine is slidably connected on the plurality of guide columns, and the top of the punching seat is fixedly connected with the bottom of the movable block.

[0015] A punching method of an intelligent arc edge pipe punching forming equipment, comprising the following steps: S1, placing the pipe to be punched between the placing groove and the guide rod; S2, after placing, starting the punching machine to drive the punching assembly to move downward, and pre-bending the pipe by the first punching head; S4, after the pre-bending is completed, the punch press is started to drive the stamping assembly to move upwards, and the position of the first stamping head and the second stamping head is automatically exchanged; S5, after the position exchange is completed, the punch press is started again to drive the stamping assembly to move downwards, and the pipe is formed through the second stamping head; S6, after the pipe is formed, the punch press is started again to drive the stamping assembly to move upwards, the stamping work is completed, and the position of the first stamping head and the second stamping head is automatically exchanged again.

[0016] The technical effects and advantages of the present application are as follows: 1, through the setting of the stamping assembly, when the pipe is punched, the position of the first stamping head and the second stamping head can be automatically exchanged during the lifting process of the output end of the punch press, without manual replacement of the die and the punch, on the one hand, the die and the punch can be reduced, the downtime can be shortened, the automation degree and the processing efficiency of the equipment can be improved, on the other hand, the manual intervention and the accident risk can be reduced, and the product precision and consistency can be improved; 2, through the setting of the positioning assembly, during the punching process of the pipe, the pipe can be automatically positioned and fixed outside and inside through the plurality of first positioning blocks and the plurality of second positioning blocks, on the one hand, the pipe to be punched can be prevented from being offset during the punching process, and the pipe can be prevented from being expanded or offset outward, so that the pipe can be kept stable during the punching, on the other hand, the pipe can be prevented from being expanded and offset outward and being concave and deformed during the punching process, so that the stability of the pipe during the punching can be further improved, and the precision of the pipe after the forming can be further improved. DETAILED DESCRIPTION

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0018] Figure 2 It is a schematic diagram of the positioning assembly structure of the present application.

[0019] Figure 3 It is an exploded view of the guide rod part of the present application.

[0020] Figure 4 It is an exploded view of the driving ring part of the present application.

[0021] Figure 5 It is a sectional view of the positioning assembly structure of the present application.

[0022] Figure 6 It is a schematic diagram of the stamping assembly structure of the present application.

[0023] Figure 7 It is a schematic diagram of the internal structure of the stamping seat of the present application.

[0024] Figure 8Structure schematic view of the installation rod part of the present application.

[0025] Figure 9 Structure schematic view of the telescopic rod part of the present application.

[0026] Figure 10 Structure schematic view of the A part of the present application. Figure 7

[0027] Figure 11 Structure schematic view of the pipe in the pre-bending state of the present application.

[0028] Figure 12 Structure schematic view of the pipe in the completed state of the present application.

[0029] The reference signs are 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, installation slot; 33, installation rod; 34, support plate; 35, first stamping head; 36, second stamping head; 37, first guide slot; 38, second guide slot; 39, telescopic slot; 310, telescopic rod; 311, first elastic member; 312, guide wheel; 313, ball; 314, rotating block; 315, fourth elastic member; 4, positioning assembly; 41, support seat; 42, lifting slot; 43, placement slot; 44, piston plate; 45, second elastic member; 46, support sleeve; 47, limiting slot; 48, guide rod; 49, third elastic member; 410, first positioning slot; 411, first positioning block; 412, first driving slot; 413, driving ring; 414, second positioning slot; 415, second positioning block; 416, second driving slot; 417, driving block; 418, stamping slot. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0031] Embodiment one In the process of arc edge stamping forming of the existing pipe, the pipe needs to be manually loaded, positioned and fixed, stamping controlled, replaced with different punches, replaced with different molds and unloaded, etc. However, the process has a low degree of automation and is relatively cumbersome. Errors are prone to occur in the operation process of manual work. On the one hand, the product precision is reduced, and the product consistency cannot be guaranteed. On the other hand, the mold may be damaged, the maintenance cost is increased, and the production efficiency is affected.

[0032] Reference​Figures 1 to 12 The intelligent arc edge pipe stamping forming equipment provided by the embodiment of the application comprises a base 1 and a stamping device 2 arranged on the base 1, the stamping device 2 comprises a top frame 21 arranged above the base 1, a stamping machine 22 is arranged 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 with an output end of the stamping machine 22 is slidably connected on the guide columns 23.

[0033] Reference Figure 1 、 Figures 6 to 10 The stamping assembly 3 comprises a stamping seat 31, an installation groove 32 is arranged at the bottom of the stamping seat 31, an installation rod 33 is arranged in the installation groove 32, a support plate 34 is fixedly connected to one end of the installation rod 33 extending out of the installation groove 32, a first stamping head 35 and a second stamping head 36 are respectively fixedly connected to two ends of the support plate 34, the bottom of the first stamping head 35 is a conical head, and the first stamping head 35 is used for pre-bending the pipe, and the bottom of the second stamping head 36 is provided with a limiting rod with a diameter smaller than the inner diameter of the pipe, and the second stamping head 36 is used for limiting the inside of the pipe during pipe forming. A rotating block 314 is rotatably connected to the top of the installation groove 32, a fourth elastic member 315 sleeved in the installation groove 32 is connected between the rotating block 314 and the installation rod 33, and the rotating block 314 is used for rotating when the installation rod 33 rotates, so as to prevent the fourth elastic member 315 from being excessively twisted.

[0034] Reference Figure 10 Two first guide grooves 37 and two second guide grooves 38 are symmetrically arranged in the installation groove 32, the two first guide grooves 37 are vertically arranged, the two second guide grooves 38 are arranged around the inner wall of the installation groove 32, one end of each of the two second guide grooves 38 is in communication with the top of one of the first guide grooves 37, and the other end of each of the two second guide grooves 38 is in communication with the bottom of the other first guide groove 37, the depth of each of the two second guide grooves 38 at the top end corresponding to the 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 being at the top of the first guide groove 37, and the depth of each of the two second guide grooves 38 at the bottom end corresponding to the 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 cannot enter the second guide groove 38 during upward movement in the first guide groove 37.

[0035] Reference Figures 8 to 10, the outer wall of the circumference of the mounting rod 33 is symmetrically provided with two telescopic grooves 39, two telescopic rods 310 are slidably connected in the two telescopic grooves 39, one end of each of the two telescopic rods 310 located inside the corresponding telescopic groove 39 is connected with the corresponding telescopic groove 39, and the outer wall of the other end of each of the two telescopic rods 310 located outside the corresponding telescopic groove 39 is rotatably connected with a guide wheel 312, and the end of each of the two telescopic rods 310 located outside the corresponding telescopic groove 39 is hingedly connected with a ball 313, and the guide wheel 312 and the ball 313 are used to reduce the friction when the telescopic rod 310 moves; The two guide wheels 312 are slidably connected in the two first guide grooves 37 and the two second guide grooves 38, and the two 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 pushing force of the corresponding first elastic element 311.

[0036] Reference Figures 1 to 5 The positioning assembly 4 is arranged on the base 1 and used for positioning and supporting and fixing the pipe during the stamping forming process, and the positioning assembly 4 comprises a supporting seat 41, the inside of the supporting seat 41 is provided with a lifting groove 42, the top of the supporting seat 41 is provided with a placing groove 43 in communication with the lifting groove 42, the diameter of the placing groove 43 is greater than the outer diameter of the pipe, a piston plate 44 is slidably connected in the lifting groove 42, the bottom of the piston plate 44 is connected with the lifting groove 42 through a second elastic element 45, the top of the piston plate 44 is fixedly connected with a supporting sleeve 46 slidably connected in the inside of the placing groove 43, the top of the supporting sleeve 46 is provided with a limiting groove 47, the inside of the limiting groove 47 is slidably connected with a guide rod 48, the diameter of the guide rod 48 is smaller than the inner diameter of the pipe, the bottom of the guide rod 48 is connected with the limiting groove 47 through a third elastic element 49, and the top of the supporting seat 41 is provided with a stamping groove 418 concentrically arranged with the placing groove 43.

[0037] In actual work, first, the pipe to be stamped is placed between the placing groove 43 and the guide rod 48, the supporting sleeve 46 can support the pipe to be stamped, and after the pipe is placed, the stamping machine 22 is started, the output end of the stamping machine 22 drives the movable block 24 and the stamping seat 31 to move downward under the guidance of the plurality of guide columns 23, the stamping seat 31 drives the first stamping head 35 and the second stamping head 36 to move downward through the mounting rod 33 and the supporting plate 34, since the first stamping head 35 is located directly below the stamping seat 31, the conical structure at the bottom of the first stamping head 35 contacts the top of the pipe to be stamped and drives the pipe to be stamped to move downward in the placing groove 43 during the movement of the stamping seat 31; The to-be-stamped pipe moves downward, pushing the support sleeve 46 and the piston plate 44 to move downward in the lifting groove 42, and compressing the second elastic member 45. The first stamping head 35 pushes the to-be-stamped pipe to move downward in the placing groove 43, and simultaneously pushes the first stamping head 35 and the support plate 34 to move upward, and drives the mounting rod 33 to compress the fourth elastic member 315 to move upward in the mounting groove 32. The mounting rod 33 moves upward in the mounting groove 32, and drives the two guide wheels 312 to move upward in the corresponding first guide groove 37 through the two telescopic rods 310; Reference Figure 11 When the piston plate 44 moves downward to the limit position in the lifting groove 42, the top of the first stamping head 35 contacts the bottom of the stamping seat 31, and then the two telescopic rods 310 and the two guide wheels 312 move to the top of the two first guide grooves 37, and move to the corresponding second guide grooves 38 under the action of the pushing force of the corresponding first elastic member 311. After the stamping seat 31 and the first stamping head 35 move downward to the limit position, the to-be-stamped pipe is pre-bent by the conical structure at the bottom of the first stamping head 35; After the pre-bending is completed, the output end of the stamping machine 22 is lifted, and the output end of the stamping machine 22 drives the stamping seat 31 to move upward through the movable block 24. The stamping seat 31 moves upward, and the mounting rod 33 moves downward in the mounting groove 32 under the action of the pushing force of the fourth elastic member 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 rotates 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 exchanged. The second stamping head 36 is located directly below the stamping seat 31, and when the mounting rod 33 returns to the bottom position, the two telescopic rods 310 and the two guide wheels 312 move from the two second guide grooves 38 to the bottom of the two first guide grooves 37.

[0038] Reference Figure 12 After the positions of the first stamping head 35 and the second stamping head 36 are exchanged, the output end of the stamping machine 22 is controlled to move downward again, and the stamping seat 31 and the second stamping head 36 move 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 is inserted into the pipe with the completed flange to limit the inside of the pipe, and then when the second stamping head 36 moves downward to the limit position, the arc edge stamping work on the pipe is completed; After the arc edge stamping work is completed, the output end of the stamping machine 22 is lifted, and the installation rod 33 moves downward in the installation groove 32, the positions of the first stamping head 35 and the second stamping head 36 are automatically exchanged again, the first stamping head 35 is located directly below the stamping seat 31, and the next pipe stamping is prepared, thereby reducing manual intervention and accident risk, shortening downtime, improving the degree of automation of the equipment and processing efficiency; It should be noted that, in the process of moving the first stamping head 35 downward to stamp the arc edge of the pipe, referring 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 pushing force of the third elastic member 49, which can prevent the pipe from being squeezed inward during the arc edge stamping process and avoid deformation of the pipe. At the same time, the pipe is pushed out of the placement groove 43 after stamping is completed, which is convenient for taking.

[0039] In summary, through the arrangement of the stamping assembly 3, in the process of lifting the output end of the stamping machine 22 during the arc edge stamping of the pipe, the positions of the first stamping head 35 and the second stamping head 36 can be automatically exchanged, without the need for manual replacement of the mold and the stamping head. On the one hand, it can reduce the damage of the mold and the stamping head, shorten the downtime, improve the degree of automation of the equipment and the processing efficiency, and on the other hand, it can reduce the manual intervention and the accident risk, and improve the product precision and consistency.

[0040] Embodiment Two In actual stamping process, the structure in the above-mentioned embodiments cannot automatically position and fix the pipe, on the one hand, it can cause the pipe to deviate during stamping, which cannot ensure the stability of the pipe during stamping, on the other hand, it can cause the pipe to expand outward and deviate or to be concave inward and deformed during stamping, which can cause the precision of the pipe after forming to decrease. Therefore, the device described in the above-mentioned embodiments is improved in this embodiment.

[0041] Referring to Figures 2 to 5 , a plurality of first positioning grooves 410 are uniformly arranged in the inside of the support seat 41 and are connected with the inside of the placement groove 43, a first positioning block 411 is slidably connected in the inside of each first positioning groove 410, a first driving groove 412 is arranged below the plurality of first positioning grooves 410 in the inside of the support seat 41 and is connected with the inside of the lifting groove 42, the plurality of first positioning grooves 410 are connected with the first driving groove 412, a driving ring 413 is slidably connected in the inside of the first driving groove 412, the top of the driving ring 413 and the bottom of each first positioning block 411 are arranged as wedge surfaces that can cooperate with each other, and when the driving ring 413 moves upward in the first driving groove 412, the driving ring 413 can push the plurality of first positioning blocks 411 to move synchronously in the direction of the placement groove 43.

[0042] Referring to Figure 3And Figure 5 The interior of the guide rod 48 is uniformly provided with a plurality of second positioning grooves 414 in communication with the interior of the placement groove 43, the interior of each second positioning groove 414 is slidably connected with a second positioning block 415, the interior of the guide rod 48 is provided with a second driving groove 416 below the plurality of second positioning grooves 414, the second driving groove 416 is in communication with the interior of the limiting groove 47, the plurality of second positioning grooves 414 are in communication with each second driving groove 416, the interior of the second driving groove 416 is slidably connected with a driving block 417, the top of the driving block 417 and the bottom of each second positioning block 415 are provided as wedge surfaces capable of cooperating with each other, when the driving block 417 moves upward in the second driving groove 416, the driving block 417 can push the plurality of second positioning blocks 415 to move synchronously toward the direction of the placement groove 43.

[0043] Reference Figure 5 The top of each first positioning block 411 and each second positioning block 415 near the side of the placement groove 43 is provided as a wedge surface, for extruding the plurality of first positioning blocks 411 and the plurality of second positioning blocks 415 into the corresponding first positioning grooves 410 and the corresponding second positioning grooves 414 during the process of placing the pipe into the placement groove 43, the first positioning block 411 and the second positioning block 415 are both made of elastic material.

[0044] In actual work, when the first punch head 35 or the second punch head 36 pushes the to-be-punched pipe to move downward, the to-be-punched pipe will push the support sleeve 46 to drive the piston plate 44 to move downward in the lifting groove 42, the piston plate 44 will extrude the gas in the lifting groove 42 into the first driving groove 412 during the process of moving downward, thereby pushing the driving ring 413 to move upward in the first driving groove 412, the driving ring 413 will push the plurality of first positioning blocks 411 to move synchronously toward the direction of the placement groove 43 during the process of moving upward in the first driving groove 412 through the cooperation with the wedge surface at the bottom of each first positioning block 411, thereby automatically positioning and fixing the to-be-punched pipe in the placement groove 43, avoiding the deviation of the to-be-punched pipe during the punching process, preventing it from expanding or deviating outward, ensuring that the pipe remains stable during punching, and further improving the precision of the formed pipe; At the same time, the first punch head 35 or the second punch head 36 will drive the guide rod 48 to move downward in the limiting groove 47 and compress the third elastic member 49 during the process of moving downward, at this time, the gas in the limiting groove 47 will enter the second driving groove 416 and push the driving block 417 to move upward, the driving block 417 will push the plurality of second positioning blocks 415 to move synchronously toward the direction of the placement groove 43 during the process of moving upward through the cooperation with the wedge surface at the bottom of each second positioning block 415, thereby automatically supporting the pipe from the inside, further improving the stability of the pipe during the punching forming process, preventing the pipe from being concave or deformed during the punching process, and ensuring uniform stress.

[0045] When the punch work is completed and the output end of the punch 22 is lifted up, since the first positioning block 411 and the second positioning block 415 are both elastic materials, the second elastic piece 45 and the third elastic piece 49 can automatically push back the piston plate 44 and the guide rod 48 to the initial position, the gas in the first driving groove 412 and the second driving groove 416 will re-enter the lifting groove 42 and the limiting groove 47, which will make the driving ring 413 and the driving block 417 move downward to the initial position, so that the plurality of first positioning blocks 411 and the plurality of second positioning blocks 415 can automatically release the limiting of the pipe, at this time, the pipe can be normally taken out.

[0046] In summary, through the setting of the positioning assembly 4, in the process of arc edge stamping of the pipe, the plurality of first positioning blocks 411 and the plurality of second positioning blocks 415 can automatically position and fix the pipe from the outside and the inside, on the one hand, it can avoid the deviation of the pipe to be stamped in the stamping process, prevent it from expanding or deviating outward, ensure that the pipe remains stable during stamping, on the other hand, it can prevent the pipe from expanding and deviating outward and from being concave and deformed during stamping and forming, further improve the stability of the pipe during stamping, and further improve the precision of the pipe after forming.

[0047] Embodiment three A stamping method of an intelligent arc edge pipe stamping and forming equipment, comprising the following steps: S1, placing the pipe to be stamped between the placing groove 43 and the guide rod 48; S2, after placing, starting the punch 22 to drive the stamping assembly 3 to move downward, and pre-bending the pipe by the first stamping head 35; S4, after pre-bending, starting the punch 22 to drive the stamping assembly 3 to move upward, and automatically switching the positions of the first stamping head 35 and the second stamping head 36; S5, after the position switching is completed, starting the punch 22 to drive the stamping assembly 3 to move downward again, and forming the arc edge of the pipe by the second stamping head 36; S6, after the arc edge of the pipe is formed, starting the punch 22 to drive the stamping assembly 3 to move upward again, completing the stamping work, and automatically switching the positions of the first stamping head 35 and the second stamping head 36 again.

[0048] Finally: the above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

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), is used to position and support the tube during the stamping process.

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 positioning component (4) includes a support base (41), the inside of which is provided with a lifting groove (42), and the top of the support base (41) is provided with a placement groove (43) communicating with the lifting groove (42). 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).

6. The intelligent arc-edge tube stamping forming equipment according to claim 5, characterized in that: 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).

7. The intelligent arc-edge tube stamping forming equipment according to claim 6, characterized in that: 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).

8. The intelligent arc-edge tube stamping forming equipment according to claim 7, 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).

9. The intelligent arc-edge tube stamping forming equipment according to claim 8, 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).

10. 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 any one of claims 1 to 9, 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 is formed by the second stamping head (36) to form the arc edge. S6. After the pipe fitting arc edge 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.

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