Forming equipment for stainless steel pipe and working method of forming equipment

Abstract

The invention relates to the technical field of stainless steel pipe production, in particular to forming equipment for stainless steel pipes, which comprises a transmission mechanism, a feeding belt, a translation channel, a material taking part, a forming seat, a top plate and a pressure rod, the forming seat and the material taking part are connected and movably arranged on the upper side of the translation channel, and the top plate is correspondingly arranged on the upper side of the translation channel; the conveying mechanism is used for conveying the strip-shaped plates to the discharging frame to be discharged in sequence, and the forming base is used for receiving the discharged strip-shaped plates. The pressure rods are arranged on one side of the top plate in a liftable mode, the end faces of the pair of pressure rods are combined with each other, and therefore the strip-shaped plate on the forming base is subjected to punch forming through downward pressing; and an arc-shaped cavity is formed in the forming base and matched with the pressure rod, a pair of forming blocks are arranged at the upper end of the forming base in a sliding fit mode, and the batch forming function is conveniently, rapidly and efficiently achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of stainless steel pipe production, and particularly to a forming device for stainless steel pipes and its working method. Background Art

[0002] In the production process of stainless steel pipes, first, the stainless steel coil needs to be slit, then coiled into a tube, and finally welded to form a steel pipe.

[0003] In a Chinese invention patent with the patent publication number CN114570784B, a forming device for large-diameter stainless steel pipes is disclosed, which includes an upper pressing member provided at the lower end of a pressing rod, a lower pressing member provided on a frame, and an extrusion device for extruding a stainless steel cylindrical material with an opening into a closed opening. A side positioning structure for driving a rectangular plate to move horizontally left and right and position is provided on the frame, and the side positioning structure can make the center line of the rectangular plate form an eccentricity with the longitudinal direction of the frame in the horizontal direction.

[0004] In the above technical solution, when the rectangular plate is placed on the lower pressing member and the upper pressing member moves downward to press the rectangular plate, and the rectangular plate moves back and forth longitudinally through a corresponding longitudinal driving mechanism, a press can be used to press and roll the rectangular plate into a cylindrical material with an opening through rollers. However, this technical solution can only process one plate at a time, and the loading and unloading still need to be manually operated, resulting in low efficiency and low automation, and is not suitable for large-scale forming work.

[0005] Therefore, it is necessary to provide a forming device for stainless steel pipes and its working method, which can achieve the effect of batch forming. Summary of the Invention

[0006] The purpose of the present invention is to provide a forming device for stainless steel pipes and its working method to solve the problems raised in the above background art.

[0007] To solve the above technical problems, the present invention provides the following technical solution: A forming device for stainless steel pipes includes a transmission mechanism, a feeding belt, a translation channel, a material taking part, a forming seat, a top plate, and a pressure rod. The forming seat is connected to the material taking part and is movably arranged on the upper side of the translation channel, and the top plate is correspondingly arranged on the upper side of the translation channel. The transmission mechanism is used to transmit strip-shaped plates to a blanking rack for sequential blanking, and the forming seat is used to receive the strip-shaped plates after blanking. The pressure rod is arranged on one side of the top plate in a liftable manner, and a pair of pressure rods are provided. The end faces of the pair of pressure rods are merged with each other to press and form the strip-shaped plate on the forming seat. An arc-shaped cavity is arranged inside the forming seat, and the arc-shaped cavity is adapted to the pressure rod. A pair of forming blocks are slidably matched with the upper end of the forming seat, and the pair of forming blocks are combined relatively to extrude a strip-shaped plate into a tube body; A welding assembly is arranged on the upper side of the pressure rod, and the welding assembly is arranged on the lower side of the top plate. The welding assembly welds the weld seam of the tube body; The material taking part includes a support frame and a pair of translation plates. The pair of translation plates drive the pair of pressure rods to separate from each other, and unload the tube body onto the support frame; A pair of clamping jaws are arranged on one side of the top plate. The clamping jaws are driven by a horizontal displacement assembly and a lifting assembly. The clamping jaws grab the tube body and send it into the feeding belt.

[0008] In one embodiment, a plurality of limiting blocks are fixedly connected to the upper end of the forming seat. A plurality of square holes are opened in the upper end of the forming seat. A first spring telescopic rod is arranged in the square hole. The upper end of the first spring telescopic rod is provided with a trapezoidal limiting piece. The trapezoidal limiting piece is arranged in the square hole in a liftable manner. The limiting blocks and the trapezoidal limiting piece are used for positioning the strip-shaped plate; Side plates are fixedly connected to both sides of the upper end of the forming seat. A pair of spring contraction rods are arranged inside the side plates. One end of the spring contraction rod is fixedly connected with a moving plate. The forming block is fixedly connected with the moving plate.

[0009] In one embodiment, hinge seats are fixedly connected to both ends of the moving plate. A hinge rod is hinged in the middle of the hinge seat. The lower end of the hinge rod is hinged with a hinge piece. A conical groove is opened on the upper side of the forming seat. The hinge piece drives the two forming blocks to expand or merge by sliding up and down in the conical groove.

[0010] In one embodiment, the two ends of the pressure rod penetrate through and are slidably matched with support blocks. A lifting rod is fixedly connected to the upper end of the pressure rod. The lifting rod penetrates through the top plate and is slidably matched with it; An adaptation groove is opened on the upper end of the forming seat. The adaptation groove is arranged at both ends of the arc-shaped cavity; Grooves and protrusions that are mutually engaged are respectively opened at the end face connection parts of the pair of pressure rods.

[0011] In one embodiment, a pair of cylinders are fixedly connected to the upper end of the top plate. A driving rod is arranged at the lower end of the cylinder. A lifting plate is fixedly connected to the lower end of the driving rod. The lifting rod penetrates through the lifting plate and is slidably matched with it. A pair of conical push blocks are fixedly connected to the lower end of the lifting plate. The conical push blocks correspond to the hinge pieces.

[0012] In one embodiment, a partition is fixedly connected to the middle side of the lifting rod. A plurality of guiding telescopic columns are arranged between the partition and the lifting plate. A movable clamping block is arranged inside the lifting rod. When the upper end of the lifting plate contacts the partition, the clamping block extends to the outside of the lifting rod and restricts the downward movement of the lifting plate; A spring member is sleeved outside the lifting rod, and two ends of the spring member are respectively connected to the lifting plate and the support block.

[0013] In one embodiment, a baffle is fixedly connected to the lower end of the clamping block. A vertical groove is formed inside the lifting rod. A pair of guiding rods are fixedly connected inside the vertical groove. The guiding rods penetrate through the baffle and are slidably matched with it. A spring member is arranged between the pair of baffles. A vertical rod is slidably matched inside the vertical groove. A limiting groove is formed at the upper end of the vertical rod. Chamfered edges are formed at both ends of the limiting groove. A chamfered edge is formed at the lower end of the baffle. When the limiting groove clamps the pair of baffles, the clamping block retracts into the lifting rod; A through hole is formed through the middle side of the support block. A push plate is slidably matched inside the through hole. The vertical rod penetrates into the through hole and is fixedly connected to the push plate. A contraction spring column is arranged at the lower end of the push plate. Two ends of the push plate extending outside the through hole correspond to the limiting blocks.

[0014] In one embodiment, the welding assembly includes a welding gun. A horizontal groove is formed through the top plate. A slider is slidably matched inside the horizontal groove. The welding gun is fixed to the lower end of the slider. A square opening is formed in the middle side of the lifting plate. The welding gun passes through the square opening to weld the pipe body outside the pressure rod.

[0015] In one embodiment, the material taking part further includes a sliding frame. The sliding frame is slidably matched with the translation channel. A pair of electric telescopic rods are arranged inside the sliding frame. The electric telescopic rods drive the translation plate to move. The pressure rod is a magnetic metal. An electromagnet block is fixedly connected to the upper end of the translation plate.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: In the present invention, first, the strip-shaped plate is transported to the blanking rack through the transport mechanism. The blanking rack guides the strip-shaped plate so that it falls on the forming seat, completing the feeding work. The forming seat and the material taking part move synchronously along the translation channel, transporting the received strip-shaped plate to the lower side of the pressure rod. By using a linear drive component, such as a cylinder, a hydraulic cylinder or a lead screw mechanism, a pair of mutually combined pressure rods are driven to move downward, stamping the strip-shaped plate into the arc-shaped cavity. The strip-shaped plate is in a U shape. Then, through the mutual combination of a pair of forming blocks, the U-shaped strip-shaped plate is extruded and wrapped around the outside of the pressure rod to form a pipe body. Then, the forming blocks and the pressure rod are reset successively. The pressure rod drives the pipe body to rise to the lower side of the welding component, and the weld seam is welded, thereby realizing the forming work of the stainless steel pipe. Then, the forming seat and the material taking part are reset, so that the forming seat can receive the strip-shaped plate again, while the material taking part moves to the lower side of the pressure rod. The material taking part drives a pair of pressure rods to separate from each other through a pair of translation plates, withdraws from the inside of the pipe body, and unloads the pipe body onto the support frame. Then, the forming seat and the material taking part move again, and the pipe body is brought to the lower side of the clamping jaw. The clamping jaw grabs it and sends it into the feeding belt, while the new strip-shaped plate is brought to the lower side of the pressure rod, entering a new round of stamping and forming work. By repeating this process, the continuous automatic production of stainless steel pipes can be realized, which is suitable for mass production, greatly improving the work efficiency. And through the stamping of the strip-shaped plate and the extrusion of the forming blocks, the pipe body is formed by fitting around the outside of the pressure rod, and the forming accuracy is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following will, by way of a detailed description of the specific embodiments of the present application in conjunction with the drawings, make the technical solutions and other beneficial effects of the present application obvious.

[0018] In the drawings: Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the front view sectional schematic diagram of the present invention; Figure 3 is Figure 2 the partial enlarged schematic diagram of area A of Figure 4 is the three-dimensional schematic diagram of the forming seat of the present invention; Figure 5 is the three-dimensional schematic diagram of the forming block of the present invention; Figure 6 is the sectional schematic diagram of the forming seat of the present invention; Figure 7 is the partial three-dimensional schematic diagram of the present invention; Figure 8 is the three-dimensional sectional schematic diagram of the forming seat of the present invention; Figure 9 is the sectional schematic diagram of the lifting rod of the present invention; Figure 10 is Figure 9 a partial enlarged schematic view of area B; Figure 11 is a three-dimensional sectional view of the lifting rod of the present invention; In the figure: 1. Top plate; 101. Pressure rod; 102. Forming block; 103. Support block; 104. Adaptation groove; 105. Lifting rod; 106. Conical push block; 107. Lifting plate; 108. Partition board; 2. Forming seat; 201. Arc cavity; 202. Limiting block; 203. Trapezoidal limiting part; 204. Spring contraction rod; 205. Moving plate; 206. Hinge seat; 207. Hinge rod; 208. Hinge part; 209. Conical groove; 3. Translation channel; 301. Clamping block; 302. Baffle; 303. Guide rod; 304. Vertical rod; 305. Push plate; 306. Through hole; 307. Shrinkage spring column; 4. Material taking part; 401. Support frame; 402. Translation plate; 403. Electromagnet block; 404. Slide frame; 5. Transmission mechanism; 501. Feeding frame; 6. Strip-shaped plate; 601. Pipe body; 7. Claw; 701. Translation seat; 702. Rubber wheel; 703. Electric telescopic column; 8. Welding gun; 801. Horizontal groove; 802. Slide block; 803. Rubber roller; 804. Biaxial motor assembly; 9. Feeding belt. Detailed implementation manners

[0019] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0020] Please refer to Figure 1-11 , the present invention provides a technical solution: a forming device for stainless steel pipes, including a transmission mechanism 5, a feeding belt 9, a translation channel 3, a material taking part 4, a forming seat 2, a top plate 1 and a pressure rod 101, The forming seat 2 and the material taking part 4 are connected and movably arranged on the upper side of the translation channel 3, and the top plate 1 is correspondingly arranged on the upper side of the translation channel 3; The transmission mechanism 5 is used to transmit the strip-shaped plate 6 to the blanking rack 501 for sequential blanking, and the forming seat 2 is used to receive the strip-shaped plate 6 that has been blanked. The pressure rod 101 is arranged on one side of the top plate 1 in a liftable manner. There are a pair of pressure rods 101, and the end faces of the pair of pressure rods 101 are merged with each other, so as to press down and stamp the strip-shaped plate 6 on the forming seat 2 into shape. An arc-shaped cavity 201 is arranged inside the forming seat 2. The arc-shaped cavity 201 is adapted to the pressure rod 101. A pair of forming blocks 102 are slidably matched with the upper end of the forming seat 2, and the pair of forming blocks 102 are merged relatively to extrude the strip-shaped plate 6 into a tube body 601. A welding assembly is arranged on the upper side of the pressure rod 101. The welding assembly is arranged on the lower side of the top plate 1, and the welding assembly welds the weld of the tube body 601. The material taking part 4 includes a support frame 401 and a pair of translation plates 402. The pair of translation plates 402 drive the pair of pressure rods 101 to separate from each other, and unload the tube body 601 onto the support frame 401. A pair of clamping jaws 7 are arranged on one side of the top plate 1. The clamping jaws 7 are driven by a horizontal displacement assembly and a lifting assembly. The clamping jaws 7 grab the tube body 601 and send it into the feeding belt 9.

[0021] First, the strip-shaped plate 6 is transported to the blanking rack 501 through the transmission mechanism 5. The blanking rack 501 guides the strip-shaped plate 6 so that it falls on the forming seat 2, completing the loading work. The forming seat 2 and the material taking part 4 move synchronously along the translation channel 3 to transport the received strip-shaped plate 6 to the lower side of the pressure rod 101. By using a linear drive assembly, such as a cylinder, a hydraulic cylinder or a lead screw mechanism, the pair of pressure rods 101 that merge with each other are driven to move downward, and the strip-shaped plate 6 is stamped and formed in the arc-shaped cavity 201. The strip-shaped plate 6 is U-shaped. Then, the pair of forming blocks 102 merge with each other to squeeze and wrap the U-shaped strip-shaped plate 6 outside the pressure rod 101 to form a pipe body 601. Then, the forming blocks 102 and the pressure rods 101 reset successively. The pressure rod 101 drives the pipe body 601 to rise to the lower side of the welding assembly to perform welding treatment on its weld seam, thus realizing the forming work of the stainless steel pipe. Then, the forming seat 2 and the material taking part 4 reset, so that the forming seat 2 picks up the strip-shaped plate 6 again, and the material taking part 4 moves to the lower side of the pressure rod 101. The material taking part 4 drives the pair of pressure rods 101 to separate from each other through a pair of translation plates 402, withdraw from the inside of the pipe body 601, and unload the pipe body 601 onto the support frame 401. Then, the forming seat 2 and the material taking part 4 move again, and the pipe body 601 is brought to the lower side of the clamping jaw 7. The clamping jaw 7 grabs it and sends it into the feeding belt 9, while the new strip-shaped plate 6 is brought to the lower side of the pressure rod 101 to enter a new round of stamping and forming work. By repeating this process, the continuous automatic production of stainless steel pipes can be realized, which is suitable for mass production, greatly improves the work efficiency, and through the stamping of the strip-shaped plate 6 and the extrusion of the forming blocks 102, the pipe body 601 is formed by fitting on the outside of the pressure rod 101, and the forming accuracy is higher; Preferably, the horizontal displacement assembly includes a translation seat 701. The translation seat 701 is slidably matched with the top plate 1. A motor is arranged inside the translation seat 701. The motor drives the rubber wheel 702 to rotate, and the rubber wheel 702 can drive the translation seat 701 to roll along the top plate 1 to drive the clamping jaw 7 to move. The lifting assembly includes a pair of electric telescopic columns 703 to drive the clamping jaw 7 to lift.

[0022] A plurality of limiting blocks 202 are fixedly connected to the upper end of the forming seat 2. A plurality of square holes are opened in the upper end of the forming seat 2. A first spring telescopic rod is arranged in the square hole. The upper end of the first spring telescopic rod is provided with a trapezoidal limiting member 203. The trapezoidal limiting member 203 is arranged in the square hole in a liftable manner. The limiting blocks 202 and the trapezoidal limiting member 203 are used to position the strip-shaped plate 6; Both sides of the upper end of the forming seat 2 are fixedly connected with side plates. A pair of spring contraction rods 204 are arranged inside the side plates. One end of the spring contraction rod 204 is fixedly connected with a moving plate 205. The forming block 102 is fixedly connected with the moving plate 205.

[0023] Preferably, under the action of the spring contraction rod 204, the forming block 102 fits against the side plate in the initial state, so as not to affect the feeding of the strip-shaped plate 6 to the upper side of the arc-shaped cavity 201. A number of limiting blocks 202 and trapezoidal limiting members 203 are provided, so that the strip-shaped plate 6 is positioned directly above the arc-shaped cavity 201, facilitating the alignment of the stamping position, ensuring the forming accuracy, and a first spring telescopic rod is provided at the lower end of the trapezoidal limiting member 203. When the moving plate 205 pushes the forming block 102 to move and extrudes the strip-shaped plate 6, the forming block 102 presses it into the square hole along the inclined surface of the trapezoidal limiting member 203, thus not affecting the forming work.

[0024] Both ends of the moving plate 205 are fixedly connected with hinge seats 206. The middle sides of the hinge seats 206 are hinge-connected with hinge rods 207. The lower ends of the hinge rods 207 are hinge-connected with hinge members 208. A conical groove 209 is formed on the upper side of the forming seat 2. The hinge member 208 drives the two side forming blocks 102 to expand or merge by sliding up and down in the conical groove 209.

[0025] Preferably, when it is necessary to drive a pair of moving plates 205 to move relative to each other, so as to drive the forming block 102 to perform the extrusion work, the hinge member 208 moves downward, thereby pulling the two side hinge rods 207. The hinge rods 207 can drive a pair of moving plates 205 to move relative to each other. The spring contraction rod 204 is used for guiding, so that the forming block 102 extrudes and forms the strip-shaped plate 6. The conical groove 209 is provided to adapt to the displacement of the hinge member 208 and the two hinge rods 207.

[0026] Both ends of the pressure rod 101 penetrate through and are slidably matched with the support blocks 103. The upper end of the pressure rod 101 is fixedly connected with a lifting rod 105. The lifting rod 105 penetrates through the top plate 1 and is slidably matched with it; An adaptation groove 104 is formed on the upper end of the forming seat 2. The adaptation groove 104 is arranged at both ends of the arc-shaped cavity 201; Grooves and protrusions that are engaged with each other are respectively formed at the end face connection parts of a pair of pressure rods 101.

[0027] Preferably, the support block 103 is driven to lift by using the lifting rod 105, thereby driving the pressure rod 101 to move up and down for stamping and forming. And a corresponding adaptation groove 104 is formed on the upper side of the forming seat 2 to adapt to the downward pressure of the support block 103; When it is necessary to unload the pipe body 601, driven by the translation plate 402, the pressure rod 101 passes through the support block 103 and slides. A pair of pressure rods 101 are separated from each other, and the pipe body 601 is restricted by a pair of support blocks 103 and remains between them until the pressure rod 101 completely withdraws from the pipe body 601 and it drops, then the unloading can be completed; Since the end faces of a pair of pressure rods 101 are in mutual contact and press the strip-shaped plate 6, in order to further improve the stability during their pressing, grooves and protrusions are respectively provided on their end faces, so that when their end faces are in mutual contact, the grooves and protrusions are engaged with each other, further improving the stability of their contact.

[0028] A pair of cylinders are fixedly connected to the upper end of the top plate 1. A driving rod is provided at the lower end of the cylinder. The lower end of the driving rod is fixedly connected to a lifting plate 107. A lifting rod 105 passes through the lifting plate 107 and is slidably matched with it. A pair of conical push blocks 106 are fixedly connected to the lower end of the lifting plate 107, and the conical push blocks 106 correspond to the hinge members 208.

[0029] Preferably, after the pressure rod 101 presses and forms the strip-shaped plate 6, at this time, the cylinder is used to drive the driving rod, the driving rod pushes the lifting plate 107 to lift and lower. The lifting plate 107 moves along the lifting rod 105 for guiding, driving a pair of conical push blocks 106 to descend, and the conical push blocks 106 press down the hinge members 208, so as to drive a pair of forming blocks 102 to move towards the center to extrude and form the strip-shaped plate 6. It realizes that after the pressure rod 101 presses and forms first, the forming blocks 102 then perform extrusion forming, and the processes are connected in an orderly manner.

[0030] A partition plate 108 is fixedly connected to the middle side of the lifting rod 105. A number of guiding telescopic columns are provided between the partition plate 108 and the lifting plate 107. A movable clamping block 301 is arranged inside the lifting rod 105. When the upper end of the lifting plate 107 contacts the partition plate 108, the clamping block 301 extends to the outside of the lifting rod 105 and restricts the downward movement of the lifting plate 107; A spring member is sleeved on the outside of the lifting rod 105, and the two ends of the spring member are respectively connected to the lifting plate 107 and the support block 103.

[0031] Preferably, in the initial state, the lifting plate 107 is located between the partition plate 108 and the clamping block 301. When the cylinder drives the lifting plate 107 to descend, since the clamping block 301 extends to the outside of the lifting rod 105 to limit the height of the lifting plate 107, the lifting plate 107 then pushes the clamping block 301, and the clamping block 301 thus pushes the lifting rod 105 to move synchronously. That is, the support block 103 and the pressure rod 101 can be driven to move downward first to complete the stamping work. Then, the clamping block 301 retracts into the lifting rod 105 and no longer limits the lifting plate 107. At this time, the cylinder continues to drive the lifting plate 107 to descend, and the lifting plate 107 descends relative to the lifting rod 105, thereby driving the conical push block 106 to descend and driving the forming block 102 to complete the extrusion forming work. Then, when resetting is required, since there is a spring member between the lifting plate 107 and the support block 103, under the elastic force of the spring member, the lifting plate 107 first rises under the drive of the cylinder, while the lifting rod 105, the support block 103, and the pressure rod 101 remain stationary, so that the forming blocks 102 can be separated from each other for resetting until the lifting plate 107 rises to contact the partition plate 108, thereby pushing the partition plate 108 to rise, and then the lifting rod 105, the support block 103, and the pressure rod 101 can be pushed to rise and reset. The pressure rod 101 drives the pipe body 601 to move upward to wait for the subsequent unloading work; That is to say, only by using the cylinder assembly can the pressure rod 101 be driven for stamping first, and then a pair of forming blocks 102 be driven for extrusion forming. The processes are orderly connected, cost-saving, and have a high degree of automation.

[0032] A baffle 302 is fixedly connected to the lower end of the clamping block 301. Vertical grooves are formed in the inner side of the lifting rod 105. A pair of guide rods 303 are fixedly connected in the vertical grooves. The guide rods 303 penetrate through the baffle 302 and are slidably matched with it. A spring member is arranged between the pair of baffles 302. A vertical rod 304 is slidably matched in the vertical groove. A limiting groove is formed at the upper end of the vertical rod 304. Chamfers are formed at both ends of the limiting groove. A chamfer is formed at the lower end of the baffle 302. When the limiting groove catches the pair of baffles 302, the clamping block 301 retracts into the lifting rod 105; A through hole 306 is formed through the middle side of the support block 103. A push plate 305 is slidably matched in the through hole 306. The vertical rod 304 penetrates into the through hole 306 and is fixedly connected to the push plate 305. A contraction spring column 307 is arranged at the lower end of the push plate 305. The two ends of the push plate 305 extending outside the through hole 306 correspond to the limiting blocks 202.

[0033] Preferably, a baffle 302 is fixed to the lower end of the clamping block 301. A spring member is arranged between a pair of baffles 302, so that the pair of baffles 302 are separated from each other in the initial state. The clamping block 301 extends out of the lifting rod 105 to limit the lifting plate 107. An inclined chamfer is provided on the lower side of the baffle 302, corresponding to the upper end of the vertical rod 304. When the vertical rod 304 moves upward, the limiting groove pushes the pair of baffles 302 along the inclined chamfer of the baffle 302 into the limiting groove (as Figure 11 shown), so that the clamping block 301 can be retracted into the lifting rod 105, and the limitation on the lifting plate 107 is released; Specifically, when performing the stamping work, the air cylinder drives the lifting plate 107 to descend, driving the lifting rod 105 to descend synchronously, driving the support block 103 and the pressure rod 101 to move downward to complete the stamping work. At the same time, both ends of the push plate 305 inside the support block 103 are in contact with the limiting block 202, so that the limiting block 202 limits the height of the push plate 305, keeping the vertical rod 304 stationary, and the lifting rod 105 continues to descend, so that the baffle 302 is clamped into the limiting groove, and the clamping block 301 is retracted into the lifting rod 105, so that the lifting plate 107 can descend relative to the lifting rod 105, driving the forming block 102 to complete the extrusion forming work. That is to say, when the pressure rod 101 first completes the stamping and forming of the strip-shaped plate 6, the baffle 302 also clamps into the limiting groove of the vertical rod 304, retracting the clamping block 301, so that the lifting plate 107 can descend alone, driving the forming block 102 to complete the extrusion forming work. There is no need for an additional driving component or control program for control. Just driving the lifting plate 107 by the air cylinder can orderly realize the forming of the pipe body 601, saving costs and having a high degree of automation; When resetting is needed, the lifting plate 107 first rises and resets to contact the partition plate 108, and pushes the partition plate 108, driving the lifting rod 105 to rise. By contracting the spring column 307, when the support block 103 rises, the push plate 305 and the vertical rod 304 remain stationary, so that the baffle 302 is separated from the limiting groove, and the clamping block 301 extends out to clamp the lifting plate 107 under the partition plate 108 again, and the push plate 305 also returns to the bottom of the through port 306, and the reset can be completed.

[0034] The welding assembly includes a welding gun 8. A horizontal groove 801 is formed through the top plate 1. A slider 802 is slidably fitted in the horizontal groove 801. The welding gun 8 is fixed to the lower end of the slider 802. A square opening is formed in the middle side of the lifting plate 107. The welding gun 8 passes through the square opening to weld the pipe body 601 outside the pressure rod 101.

[0035] Preferably, a square opening is formed in the middle side of the lifting plate 107, so that when the lifting plate 107 is reset, the welding gun 8 passes through the square opening and aligns with the pipe body 601 outside the pressure rod 101, and the weld seam on the pipe body 601 also faces upward and corresponds to the welding gun 8. A linear drive assembly can be used to drive the slider 802, so that the slider 802 drives the welding gun 8 to move back and forth in the transverse groove 801, thereby welding the weld seam; Preferably, the linear drive assembly is specifically set as a pair of rubber rollers 803. A biaxial motor assembly 804 is fixedly connected to the upper side of the slider 802. The biaxial motor assembly 804 drives the rubber rollers 803 on both sides to rotate, thereby driving the slider 802 and the welding gun 8 to displace.

[0036] The material taking part 4 further includes a sliding frame 404. The sliding frame 404 is slidably matched with the translation channel 3. A pair of electric telescopic rods are arranged inside the sliding frame 404. The electric telescopic rods drive the translation plate 402 to move. The pressure rod 101 is made of magnetic metal, and an electromagnet block 403 is fixedly connected to the upper end of the translation plate 402.

[0037] Preferably, the translation plate 402 is driven to move by the electric telescopic rod, and the pressure rod 101 is adsorbed by the electromagnet block 403, so as to drive the pressure rod 101 to move through the support block 103, and the pair of pressure rods 101 are separated from each other to complete the unloading of the pipe body 601; Preferably, both the sliding frame 404 and the forming seat 2 are driven by a linear drive assembly to displace on the translation channel 3. The linear drive assembly is an existing technology in the art, so it will not be elaborated here.

[0038] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the meanings of the above terms in the present application can be understood according to specific situations.

[0039] The above has introduced in detail the forming equipment for stainless steel pipes and its working method provided by the embodiments of the present application. Specific examples are used in this article to elaborate the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A forming device for stainless steel pipes, comprising a transmission mechanism (5), a feeding belt (9), a translation channel (3), a material taking part (4), a forming seat (2), a top plate (1) and a pressure rod (101), characterized in that: The forming seat (2) and the material taking part (4) are connected and movably arranged on the upper side of the translation channel (3), and the top plate (1) is correspondingly arranged on the upper side of the translation channel (3); The transmission mechanism (5) is used to transmit the strip-shaped plate (6) to the blanking rack (501) for sequential blanking, and the forming seat (2) is used to receive the blanked strip-shaped plate (6); The pressure rod (101) is arranged on one side of the top plate (1) in a liftable manner, and there are a pair of pressure rods (101). The end faces of the pair of pressure rods (101) are merged with each other, so as to press down and stamp the strip-shaped plate (6) on the forming seat (2) into shape; An arc-shaped cavity (201) is arranged inside the forming seat (2), and the arc-shaped cavity (201) is adapted to the pressure rod (101). A pair of forming blocks (102) are slidably matched with the upper end of the forming seat (2), and the pair of forming blocks (102) are merged relatively to extrude the strip-shaped plate (6) into a pipe body (601); A welding assembly is arranged on the upper side of the pressure rod (101), and the welding assembly is arranged on the lower side of the top plate (1). The welding assembly welds the weld of the pipe body (601); The material taking part (4) includes a support frame (401) and a pair of translation plates (402). The pair of translation plates (402) drive the pair of pressure rods (101) to separate from each other, and unload the pipe body (601) onto the support frame (401); A pair of clamping jaws (7) are arranged on one side of the top plate (1). The clamping jaws (7) are driven by a horizontal displacement assembly and a lifting assembly. The clamping jaws (7) grab the pipe body (601) and send it into the feeding belt (9).

2. The forming device for stainless steel pipes according to claim 1, characterized in that: A plurality of limiting blocks (202) are fixedly connected to the upper end of the forming seat (2). A plurality of square holes are formed in the upper end of the forming seat (2). A first spring telescopic rod is arranged in the square holes. The upper end of the first spring telescopic rod is provided with a trapezoidal limiting part (203). The trapezoidal limiting part (203) is arranged in the square holes in a liftable manner. The limiting blocks (202) and the trapezoidal limiting part (203) are used to position the strip-shaped plate (6); Side plates are fixedly connected to both sides of the upper end of the forming seat (2). A pair of spring contraction rods (204) are arranged inside the side plates. One end of the spring contraction rod (204) is fixedly connected to a moving plate (205). The forming block (102) is fixedly connected to the moving plate (205).

3. The forming device for stainless steel pipes according to claim 2, wherein: Hinge seats (206) are fixedly connected to both ends of the moving plate (205). A hinge rod (207) is hinge-connected to the middle side of the hinge seat (206). The lower end of the hinge rod (207) is hinge-connected to a hinge part (208). A conical groove (209) is formed on the upper side of the forming seat (2). The hinge part (208) drives the two side forming blocks (102) to expand or merge by sliding up and down in the conical groove (209).

4. The forming device for stainless steel pipes according to claim 3, characterized in that: Both ends of the pressure rod (101) penetrate and are slidably fitted with support blocks (103). The upper end of the pressure rod (101) is fixedly connected to a lifting rod (105), and the lifting rod (105) penetrates through the top plate (1) and is slidably fitted therewith; An adaptation groove (104) is formed at the upper end of the forming seat (2), and the adaptation groove (104) is arranged at both ends of the arc-shaped cavity (201); At the end connection of a pair of pressure rods (101), a groove and a convex block that are engaged with each other are respectively formed.

5. The forming device for stainless steel pipes according to claim 4, characterized in that: A pair of cylinders are fixedly connected to the upper end of the top plate (1). A driving rod is arranged at the lower end of the cylinder. The lower end of the driving rod is fixedly connected to a lifting plate (107). The lifting rod (105) penetrates through the lifting plate (107) and is slidably fitted therewith. A pair of conical push blocks (106) are fixedly connected to the lower end of the lifting plate (107), and the conical push blocks (106) correspond to the hinge members (208).

6. The forming device for stainless steel pipes according to claim 5, characterized in that: A partition plate (108) is fixedly connected to the middle side of the lifting rod (105). A plurality of guiding telescopic columns are arranged between the partition plate (108) and the lifting plate (107). A movable clamping block (301) is arranged inside the lifting rod (105). When the upper end of the lifting plate (107) contacts the partition plate (108), the clamping block (301) extends to the outside of the lifting rod (105) and restricts the downward movement of the lifting plate (107); A spring member is sleeved outside the lifting rod (105), and both ends of the spring member are respectively connected to the lifting plate (107) and the support block (103).

7. The forming device for stainless steel pipes according to claim 6, characterized in that: A baffle plate (302) is fixedly connected to the lower end of the clamping block (301). A vertical groove is formed inside the lifting rod (105). A pair of guiding rods (303) are fixedly connected in the vertical groove. The guiding rods (303) penetrate through the baffle plate (302) and are slidably fitted therewith. A spring member is arranged between a pair of baffle plates (302). A vertical rod (304) is slidably fitted in the vertical groove. A limiting groove is formed at the upper end of the vertical rod (304). Chamfers are formed at both ends of the limiting groove. Chamfers are formed at the lower end of the baffle plate (302). When the limiting groove catches a pair of baffle plates (302), the clamping block (301) retracts into the lifting rod (105); A through hole (306) is formed through the middle side of the support block (103). A push plate (305) is slidably fitted in the through hole (306). The vertical rod (304) penetrates into the through hole (306) and is fixedly connected to the push plate (305). A contraction spring column (307) is arranged at the lower end of the push plate (305). Both ends of the push plate (305) extending to the outside of the through hole (306) correspond to the limiting blocks (202).

8. The forming device for stainless steel pipes according to claim 5, characterized in that: The welding assembly comprises a welding gun (8); a transverse groove (801) is formed through the top plate (1); a slider (802) is slidably fitted in the transverse groove (801); the welding gun (8) is fixed to the lower end of the slider (802); a square opening is formed on the middle side of the lifting plate (107); the welding gun (8) passes through the square opening to weld the tube body (601) outside the pressure rod (101).

9. The forming device for stainless steel pipes according to claim 1, characterized in that: The material taking part (4) further comprises a slide (404), the slide (404) being slidably matched with the translation channel (3), a pair of electric telescopic rods being arranged on the inner side of the slide (404), the electric telescopic rods driving the translation plate (402) to move, the pressure rod (101) being made of magnetic metal, and an electromagnet block (403) being fixedly connected to the upper end of the translation plate (402).

10. The working method of the forming equipment for stainless steel pipe according to claim 1, comprising the following steps: S1, transporting the strip plate (6) to the unloading rack (501) through the transmission mechanism (5), and the unloading rack (501) guides the strip plate (6) so that it falls on the forming seat (2), thereby completing the loading work; S2, the forming seat (2) and the material taking part (4) move synchronously along the translation channel (3) to transport the taken strip plate (6) to the lower side of the pressure rod (101); S3, a pair of mutually merged pressure rods (101) are moved downward to stamp the strip plate (6) into the arc-shaped cavity (201), so that the strip plate (6) is U-shaped, and then a pair of forming blocks (102) are merged to squeeze and wrap the U-shaped strip plate (6) around the outside of the pressure rods (101) to form a tube body (601); S4, the forming block (102) and the pressure rod (101) are subsequently reset, and the pressure rod (101) drives the tube body (601) to rise to the lower side of the welding assembly, and performs welding on the weld seam; S5, the forming seat (2) and the material taking part (4) are then reset, and step S1 is repeated, so that the forming seat (2) takes the strip plate (6) again, and the material taking part (4) moves to the lower side of the pressure rod (101); S6, the material taking part (4) drives the pair of pressure rods (101) to separate from each other via the pair of translation plates (402), thereby unloading the tube body (601) onto the support frame (401); S7. Then, step S2 is repeated, and the tube body (601) is brought to the lower side of the clamp (7). The clamp (7) grabs it and feeds it into the feeding belt (9).

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