Steel pipe bending device for sickbed frame machining

Abstract

The invention relates to the technical field of sickbed machining, and discloses a steel pipe bending device for sickbed frame machining, which comprises a base, a machining frame is slidably connected to the base, a conveying table arranged in the axial direction of a steel pipe is fixed to the machining frame, and a feeding frame and a fixing frame which are respectively positioned on two sides of the machining frame are fixed to the base; the base is provided with a bending assembly and a pushing assembly which are located at the two ends of the machining frame correspondingly, the multiple feeding frames and the multiple fixing frames are arranged in the direction of the conveying table, a feeding frame is fixed to the feeding frames, storage plates are hinged to the two sides of the feeding frame, a connecting plate is fixed between the bottoms of the storage plates on the two sides, and a feeding air cylinder is hinged to the feeding frames. The output end of the feeding air cylinder is hinged to the bottom of the connecting plate, a jacking air cylinder is fixed to the feeding frame, a jacking plate which ascends and descends between the storage plates on the two sides is fixed to the output end of the jacking air cylinder, and a feeding table is fixed to the upper portion of the feeding frame. The automatic feeding device has the following advantages and effects that automatic feeding of steel pipe machining can be achieved, and the steel pipe bending efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hospital bed processing, in particular to a steel pipe bending device for processing a hospital bed frame. Background Art

[0002] In the medical equipment manufacturing industry, bed frames are core components that support patients. Their structural strength, precision, and durability directly impact safety and comfort. Currently, bed frames are mostly constructed by welding or assembling steel pipes, which undergo multiple manufacturing processes such as stamping, bending, and drilling. Bending steel pipes is a key step in bed frame formation. The bent steel pipes must meet specific curvature, angle, and dimensional accuracy requirements to ensure structural stability, proper assembly, and patient comfort.

[0003] At present, the bending processing of hospital bed frame steel pipes mainly relies on general bending machines or manual bending equipment, but the existing technology has the following problems: usually the operator moves the steel pipes one by one to the bending machine, clamps one end of the steel pipe, and starts bending from the other end of the steel pipe. This operation process relies on manual operation, which is labor-intensive and not conducive to improving overall processing efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a steel pipe bending device for processing a hospital bed frame, which has the effect of realizing automatic feeding of steel pipe processing and improving the efficiency of steel pipe bending.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A steel pipe bending device for processing a hospital bed frame, comprising a base, a processing frame slidably connected to the base, a conveying platform arranged along the axial direction of the steel pipe fixed to the processing frame, a loading rack and a fixing rack respectively located on both sides of the processing frame are fixed to the base, a bending assembly and a pushing assembly respectively located at both ends of the processing frame are provided on the base, the bending assembly is used to bend the steel pipe, the pushing assembly is used to push the steel pipe, the loading rack and the fixing rack are both arranged in a plurality along the direction of the conveying platform, the loading rack is fixed with a feeding rack, and storage plates are hinged on both sides of the feeding rack The lifting of the lifting mechanism is to lift the lifting mechanism and the lifting mechanism is lifted up, and the lifting mechanism is lifted up and down, and the lifting mechanism is lifted and lowered.

[0006] By adopting the above technical solution, the processing rack is close to the feeding rack at the beginning, the conveying platform is located directly below the feeding rack, and the storage plate is high on the side close to the feeding rack and low on the side away from the feeding rack, respectively, which reduces the steel pipe handling height and is convenient for operators to carry multiple steel pipes to the storage plate, thereby reducing labor intensity and reducing operation risks; the guide plate is initially located above the feeding table, and multiple steel pipes are placed on the storage plate, and the baffle is used to limit the steel pipes from leaving the storage plate. Before processing, start multiple loading cylinders, and the output end of the loading cylinder extends to drive the storage plate to rotate and lift relative to the feeding rack, so that multiple steel pipes move toward the feeding rack, and the steel pipe closest to the feeding rack moves above the ejecting plate, and start multiple ejecting cylinders. The output end of the ejecting cylinder drives the ejecting plate to rise and lift the steel pipe. Multiple ejector plates lift the steel pipe at the same time to ensure that the steel pipe rises steadily. Since the ejector plate is inclined, the steel pipe always wants to move toward the feeding rack. Before the height of the ejector plate is higher than the feeding table, the steel pipe is blocked by the feeding table and always remains on the ejector plate. When the ejector plate rises to be higher than the feeding table, the steel pipe moves toward the feeding table under the guidance of the inclined surface. Subsequently, the steel pipe moves from the ejector plate to the feeding table and is blocked by the end of the guide plate. The guide cylinder and the guide plate are slid on the third guide rail to make the steel pipe move to the conveying table close to the feeding rack under the guidance of the inclined surface at the upper end of the feeding table. Finally, automatic loading of the steel pipe bending processing is realized, unmanned continuous feeding is realized, and downtime and waiting caused by manual material changing are avoided, which significantly improves production efficiency, precision and safety, while reducing labor costs.

[0007] The present invention is further configured as follows: a first guide rail and a second guide rail are fixed on the base, a first slide groove sliding on the first guide rail and the second guide rail is provided at the bottom of the processing frame, a first screw is rotatably connected in the first guide rail, and a first motor driving the first screw to rotate is fixed on the base.

[0008] By adopting the above technical solution, after the steel pipe is loaded onto the conveying platform, the first motor is started to drive the first screw to rotate, and then the rotation of the first screw drives the processing frame to slide along the first guide rail and the second guide rail, so that the conveying platform and the processing frame slide away from the feeding frame and move to between the bending assembly and the pushing assembly, and then the bending operation is performed, so that the pushing assembly pushes one end of the steel pipe, and the bending assembly bends the other end of the steel pipe at the same time, thereby realizing flexible switching between loading and processing.

[0009] The present invention is further configured as follows: a second screw is rotatably connected in the third guide rail, the second screw is threadedly connected to a slide, a second slide groove is provided at the bottom of the slide that slides on the third guide rail, the material guide cylinder is fixed on the slide, and a second motor that drives the second screw to rotate is installed on the fixed frame.

[0010] By adopting the above technical solution, when the steel pipe is on the feeding platform and is blocked by the guide plate, the second motor is started to drive the second screw to rotate, and the second screw drives the slide and the guide cylinder to slide slowly along the direction of the third guide rail. The guide plate moves slowly on the feeding platform, slowly guiding the steel pipe so that the steel pipe moves slowly downward to the conveying platform, avoiding wear or collision of the steel pipe caused by direct accelerated sliding of the steel pipe, thereby ensuring the surface quality of the steel pipe.

[0011] The two guide wheels are connected to each other with a first end in rotation on the second guide wheel assembly, and the second end in rotation on the second guide wheel assembly is connected with a up-down knob on the second guide wheel assembly to rotate the two guide wheels respectively.

[0012] By adopting the above technical solution, when the processing frame and the conveying platform move to between the bending assembly and the pushing assembly, the third screw rotates, driving the connecting frame to slide upward along the guide plate, and the first guide rod slides and moves in the first guide through hole to realize the stable sliding and rising of the connecting frame. When the connecting frame rises, the first push rod pushes the second guide rod and the clamping plate to move upward, and the second guide rod is guided by the second guide through hole, and switches from vertical upward movement to rising and moves towards the conveying platform, driving the clamping plate to switch from rising from the bottom of the processing frame to rising and moving towards the conveying platform. Finally, the clamping plates on both sides are close to the two sides of the steel pipe to support and limit the steel pipe, which can avoid the deviation of the steel pipe during the processing, significantly improve the bending accuracy, prevent the deformation of the steel pipe caused by radial pressure, and avoid the steel pipe from popping out due to uneven force, enhance safety, and adapt to different process requirements.

[0013] The present invention is further configured as follows: a clamping groove is fixed to one side of the clamping plate close to the conveying platform, a plurality of guide rollers are rotatably connected in the clamping groove, and the plurality of guide rollers are equidistantly arranged along the axial direction of the clamping groove.

[0014] By adopting the above technical solution, when the clamping plate rises and approaches the steel pipe on the conveying platform, the clamping groove rises synchronously and approaches the conveying platform, so that the clamping grooves on both sides are finally symmetrically clamped on both sides of the steel pipe. When the steel pipe moves along the conveying platform for bending processing, the steel pipe moves along multiple guide rollers, and the multiple guide rollers rotate, reducing the clamping wear between the steel pipe and the clamping groove and clamping plate, ensuring the surface quality of the steel pipe, and improving the processing quality of the steel pipe.

[0015] The transmission gear of the present invention is a gear which is connected with the gear of the driving member, and the gear is connected with the gear to be driven by the gear of the driving member, and the gear is connected with the gear to be driven by the gear of the driving member.

[0016] By adopting the above technical solution, when the second motor is started to drive the second screw to rotate, the second screw drives the slide and the guide cylinder to slide slowly along the direction of the third guide rail, and the guide plate moves slowly on the feeding table, slowly guiding the steel pipe so that the steel pipe moves slowly downward to the conveying table, and then the second screw continues to rotate, causing the slide to slide continuously on the third guide rail until the driving rack begins to mesh with the driving gear, driving the driving gear to rotate, and then the first driving shaft coaxially fixed with the driving gear rotates, driving the first bevel gear to rotate, the first bevel gear drives the second bevel gear meshed with it to rotate, and then the second driving shaft rotates, driving the rectangular rod and the third driving shaft to rotate through the rectangular groove, and then the third bevel gear rotates, driving the fourth bevel gear meshed with it to rotate, and then the third screw coaxial with it rotates, and the third screws on both sides rotate synchronously through the transmission belt, driving the clamping plates and clamping grooves on both sides to rise synchronously and approach the conveying table, so that the steel pipe is clamped after being loaded onto the conveying table, avoiding the clamping plate and clamping groove from hindering the steel pipe loading, and improving the overall operation reliability.

[0017] The present invention is further configured as follows: a driving frame is fixed on the base, and the pushing assembly includes a pushing frame slidably connected to the driving frame, the pushing frame is rotatably connected to a rotating shaft, the end of the rotating shaft is fixedly connected to a turntable, and a driving cylinder with a cavity inside is fixed on the side of the turntable away from the rotating shaft, and the driving cylinder is provided with a plurality of limiting grooves leading to the cavity inside it along its circumference, a cross is slidably connected in the cavity, the cross frame passes through the limiting grooves, and the turntable is slidably connected to the corresponding number of limiting grooves. A clamping rod is provided, and a sliding hole is provided on the turntable. The end of the clamping rod slides in the sliding hole. A second push rod is hinged between the clamping rod body and the cross. A U-shaped frame is fixed to the pushing frame on the side away from the clamping rod, and a pushing cylinder is fixed on the U-shaped frame. The output end of the pushing cylinder passes through the U-shaped frame, the rotating shaft and the turntable and extends into the cavity of the driving cylinder and is rotatably connected to the cross. A third motor is fixed on the U-shaped frame, and a drive belt is sleeved between the output end of the third motor and the shaft body.

[0018] By adopting the above technical solution, when the steel pipe is on the conveying table, the two ends of the steel pipe are located between the bending assembly and the pushing assembly, and the pushing frame, driving cylinder, clamping rod, etc. are all located on the outside of the end of the steel pipe. The pushing frame is slid on the driving frame to make the turntable and the end face of the steel pipe abut against each other, and multiple clamping rods are extended into the inner cavity of the steel pipe. The pushing cylinder is started, and the output end of the pushing cylinder pulls the cross to slide in the cavity of the driving cylinder toward the turntable, and then the cross pushes the multiple clamping rods to move synchronously away from the driving cylinder through the second push rod until the multiple clamping rods abut against the inner wall of the steel pipe, thereby realizing internal support for the end of the steel pipe, facilitating automatic pushing of the steel pipe during bending operations, realizing precise positioning control, avoiding manual intervention, and eliminating safety hazards.

[0019] The present invention is further configured as follows: a third slide groove is provided on the driving frame along the direction of the conveying platform, one end of the pushing frame slides in the third slide groove, a fourth screw is rotatably connected in the third slide groove, and the driving frame is fixed with a fourth motor that drives the fourth screw to rotate.

[0020] By adopting the above technical solution, the fourth motor is started to drive the fourth screw to rotate, and then the fourth screw drives the pushing frame to slide on the driving frame, so as to move multiple clamping rods into the inner cavity of the steel pipe and push the inner support of the steel pipe to achieve precise positioning control.

[0021] The present invention is further configured as follows: the bending assembly includes a bending table, the bending table is rotatably connected to a fourth drive shaft, a fifth motor that drives the fourth drive shaft to rotate is fixed to the bottom of the bending table, and the fourth drive shaft is fixed with a movable frame and a bending part in sequence from bottom to top, the movable frame is fixed with a bending cylinder, a bending plate is fixed to the output end of the bending cylinder, the bending table is fixed with a support plate and an adjusting cylinder facing the support plate, the support plate is located between the conveying table and the bending part, the output end of the adjusting cylinder is fixed with an adjusting table that slides on the bending table, a rodless cylinder is fixed on the adjusting table, and a bending channel for the steel pipe to pass through is provided between the bending part and the bending cylinder, and between the support plate and the rodless cylinder.

[0022] By adopting the above technical solution, when performing bending processing, one end of the steel pipe passes through the bending channel and is located between the bending part and the bending cylinder, the support plate and the rodless cylinder. The bending cylinder and the adjusting cylinder are started, and the bending cylinder drives the bending plate to move to clamp the steel pipe between the bending plate and the bending part. The adjusting cylinder drives the adjusting platform to move to clamp the steel pipe between the slider coupled with the piston on the rodless cylinder and the support plate. At the same time, the fourth motor, the fifth motor and the rodless cylinder are started, and the fifth motor drives the fourth drive shaft to rotate, and then the movable frame rotates, and the bending plate pushes the steel pipe to bend the steel pipe. During this period, the pushing rack moves and the slider coupled with the piston on the rodless cylinder moves to push the steel pipe forward, realizing progressive bending of the steel pipe, forming a continuous and smooth bending profile, and improving the bending production accuracy and production quality; when the bending plate bends the steel pipe, the slider and the support plate further support the steel pipe, further effectively preventing the steel pipe from deforming.

[0023] The present invention is further configured as follows: the bending piece and the bending plate are provided with inwardly recessed bending grooves.

[0024] By adopting the above technical solution, the bending groove adapts to the curved outer surface of the steel pipe, preventing the steel pipe from being squeezed and deformed, and improving the bending production accuracy and production quality.

[0025] The beneficial effects of the present invention are:

[0026] 1. Initially, the storage plate is one high and one low on the side close to the feeding rack and the side away from the feeding rack, respectively, which reduces the height of steel pipe transportation and facilitates operators to carry multiple steel pipes to the storage plate, thereby reducing labor intensity and reducing operational risks;

[0027] 2. After multiple steel pipes are placed on the storage plate, the loading cylinder, storage plate, ejecting cylinder, ejecting plate and feeding platform realize automatic loading of steel pipe bending processing, realizing unmanned continuous feeding, avoiding downtime caused by manual material change, significantly improving production efficiency, precision and safety, and reducing labor costs;

[0028] 3. After the steel pipe is loaded onto the conveying table, the first motor is started to slide the conveying table and the processing frame away from the feeding frame and move them between the bending assembly and the pushing assembly. Then the bending operation is performed, so that the pushing assembly pushes one end of the steel pipe while the bending assembly bends the other end of the steel pipe, thus realizing flexible switching between loading and processing.

[0029] 4. When the steel pipe is on the feeding table and is blocked by the guide plate, the second motor is started to drive the second screw to rotate. The second screw drives the slide and the guide cylinder to slide slowly along the direction of the third guide rail. The guide plate moves slowly on the feeding table, slowly guiding the steel pipe so that the steel pipe moves slowly downward to the conveying table, avoiding wear or collision of the steel pipe caused by the direct accelerated sliding of the steel pipe, thereby ensuring the surface quality of the steel pipe;

[0030] 5. The clamping plates on both sides are close to the two sides of the steel pipe to support and limit the steel pipe, which can avoid the deviation of the steel pipe during the processing, significantly improve the bending accuracy, prevent the deformation of the steel pipe caused by radial pressure, and avoid the steel pipe from popping out due to uneven force, thereby enhancing safety and adapting to different process requirements;

[0031] 6. When the steel pipe moves along the conveyor for bending processing, the steel pipe moves along multiple guide rollers, and the multiple guide rollers rotate to reduce the clamping wear between the steel pipe and the clamping groove and clamping plate, thereby ensuring the surface quality of the steel pipe and improving the processing quality of the steel pipe;

[0032] 7. When the steel pipe is on the conveying table, the two ends of the steel pipe are located between the bending assembly and the pushing assembly. The output end of the pushing motor pulls the cross to slide in the cavity of the driving cylinder toward the turntable. Then the cross pushes multiple clamping rods synchronously to move away from the driving cylinder through the second push rod until the multiple clamping rods are against the inner wall of the steel pipe, thus achieving internal support for the end of the steel pipe, facilitating automatic pushing of the steel pipe during the bending operation, achieving precise positioning control, avoiding manual intervention, and eliminating safety hazards.

[0033] 8. The bending plate pushes the steel pipe to bend it. During this process, the pusher moves and the slider coupled to the piston on the rodless cylinder moves to push the steel pipe forward, realizing progressive bending of the steel pipe, forming a continuous and smooth bending profile, and improving the bending production accuracy and production quality. When the bending plate bends the steel pipe, the slider and the support plate further support the steel pipe, further effectively preventing the steel pipe from deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 It is a structural schematic diagram of the present invention.

[0036] Figure 2 It is a side structural schematic diagram of the present invention.

[0037] Figure 3 It is a schematic diagram of the connection relationship between the fixing frame and the third guide rail in the present invention.

[0038] Figure 4 It is a schematic diagram of the connection relationship between the loading rack, the feeding rack and the storage plate in the present invention.

[0039] Figure 5 It is a schematic diagram of the connection relationship between the material guide component and the drive component in the present invention.

[0040] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0041] Figure 7 yes Figure 5 Enlarged view of point B in the middle.

[0042] Figure 8 It is a schematic diagram of the connection relationship between the pusher assembly and the drive frame in the present invention.

[0043] Figure 9 It is a schematic cross-sectional view of the pusher assembly and the drive frame in the present invention.

[0044] Figure 10 yes Figure 9 Enlarged view of point C in the middle.

[0045] Figure 11 It is a schematic diagram of the bending component structure of the present invention.

[0046] In the figure, 1, base; 2, processing frame; 3, fixed frame; 4, loading frame; 5, bending assembly; 501, bending table; 502, fifth motor; 503, movable frame; 504, bending part; 505, bending cylinder; 506, bending plate; 507, adjusting cylinder; 508, adjusting table; 509, rodless cylinder; 510, bending channel; 511, bending groove; 512, support plate; 6, pushing assembly; 601, pushing frame; 602, driving cylinder; 603, limiting groove; 604, cross; 6 05, turntable; 606, slide hole; 607, second push rod; 608, U-shaped frame; 609, push cylinder; 610, third motor; 611, drive belt; 612, rotating shaft; 613, clamping rod; 7, material guide assembly; 701, guide plate; 702, third screw; 703, connecting frame; 704, first guide hole; 705, first guide rod; 706, first push rod; 707, clamping plate; 708, second guide hole; 7081, upper through hole; 7082, lower through hole; 709 , second guide rod; 710, clamping groove; 711, guide roller; 8, feeding rack; 9, storage plate; 10, connecting plate; 11, feeding cylinder; 12, ejecting cylinder; 13, ejecting plate; 14, third guide rail; 15, guide cylinder; 16, guide plate; 17, baffle; 18, feeding table; 19, first guide rail; 20, second guide rail; 21, first slide; 22, first screw; 23, first motor; 24, drive frame; 25, second screw; 26, slide; 27, second slide; 28, first Second motor; 29. Conveyor platform; 30. Drive assembly; 3001. Drive rack; 3002. First drive shaft; 3003. Second drive shaft; 3004. Drive gear; 3005. First bevel gear; 3006. Second bevel gear; 3007. Third drive shaft; 3008. Rectangular rod; 3009. Third bevel gear; 3010. Fourth bevel gear; 3011. Pulley; 3012. Drive belt; 31. Fixed plate; 32. Third slide; 33. Fourth screw; 34. Fourth motor. DETAILED DESCRIPTION

[0047] The technical solutions of the present invention will be described clearly and completely below with reference to specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0048] Example 1, a steel pipe bending device for processing a bed frame, such as Figure 1-11As shown, it includes a base 1, a processing frame 2 is slidably connected to the base 1, a conveying platform 29 arranged along the axial direction of the steel pipe is fixed on the processing frame 2, a loading frame 4 and a fixed frame 3 are fixed on the base 1, which are respectively located on both sides of the processing frame 2, and the base 1 is provided with a bending component 5 and a pushing component 6 respectively located at both ends of the processing frame 2, the bending component 5 is used to bend the steel pipe, and the pushing component 6 is used to push the steel pipe. The loading frame 4 and the fixed frame 3 are both arranged in a plurality of directions along the conveying platform 29, the loading frame 4 is fixed with a feeding frame 8, and storage plates 9 are hinged on both sides of the feeding frame 8, and a connecting plate 10 is fixed between the bottoms of the storage plates 9 on both sides. A feeding cylinder 11 is hinged, and the output end of the feeding cylinder 11 is hinged to the bottom of the connecting plate 10. The feeding rack 8 is fixed with a lifting cylinder 12, and the output end of the lifting cylinder 12 is fixed with a lifting plate 13 that rises and falls between the storage plates 9 on both sides. The fixed frame 3 is fixed with a third guide rail 14 extending from the top of the conveying platform 29 to the top of the feeding rack 8. A guide cylinder 15 slides on the third guide rail 14, and a guide plate 16 is fixed to the output end of the guide cylinder 15. A baffle 17 is fixed at one end of the storage plate 9 away from the feeding rack 8. A feeding platform 18 is fixed above the feeding rack 8. The upper end surfaces of the storage plate 9, the lifting plate 13 and the feeding platform 18 are all inclined toward the conveying platform 29;

[0049] At the beginning, the processing frame 2 is close to the feeding rack 8, and the conveying platform 29 is located directly below the feeding rack 18. The storage plate 9 is close to the feeding rack 8 and the side away from the feeding rack 8 are respectively high and low, which reduces the steel pipe handling height, makes it convenient for the operator to carry multiple steel pipes to the storage plate 9, thereby reducing labor intensity and reducing operation risks; the guide plate 16 is initially located above the feeding table 18, and multiple steel pipes are placed on the storage plate 9. The baffle 17 is used to limit the steel pipes from leaving the storage plate 9. Before processing, start multiple feeding cylinders 11, and the output end of the feeding cylinder 11 extends to drive the storage plate 9 to rotate and lift relative to the feeding rack 8, so that multiple steel pipes move toward the feeding rack 8. The steel pipe closest to the feeding rack 8 moves to the top of the ejection plate 13, and starts multiple ejection cylinders 12. The output end of the ejection cylinder 12 drives The top plate 13 rises to lift the steel pipe, and multiple top plates 13 lift the steel pipe at the same time to achieve stable rising of the steel pipe. Since the top plate 13 is inclined, the steel pipe always wants to move toward the feeding rack 8. Before the top plate 13 is higher than the feeding platform 18, the steel pipe is blocked by the feeding platform 18 and is always located on the top plate 13. When the top plate 13 rises to be higher than the feeding platform 18, the steel pipe moves toward the feeding platform 18 under the guidance of the inclined surface. Then the steel pipe moves from the top plate 13 to the feeding platform 18 and is blocked by the end of the guide plate 16. The guide cylinder 15 and the guide plate 16 are slid on the third guide rail 14, so that the steel pipe moves to the conveying platform 29 close to the feeding rack 8 under the guidance of the inclined surface at the upper end of the feeding platform 18, thereby realizing automatic loading of the steel pipe bending processing and unmanned continuous feeding.

[0050] Furthermore, a first guide rail 19 and a second guide rail 20 are fixed to the base 1, and a first slide groove 21 is provided at the bottom of the processing frame 2 to slide on the first guide rail 19 and the second guide rail 20. A first screw 22 is rotatably connected in the first guide rail 19, and a first motor 23 is fixed to the base 1 to drive the first screw 22 to rotate;

[0051] After the steel pipe is loaded onto the conveying platform 29, the first motor 23 is started to drive the first screw 22 to rotate, and then the rotation of the first screw 22 drives the processing frame 2 to slide along the first guide rail 19 and the second guide rail 20, so that the conveying platform 29 and the processing frame 2 slide away from the feeding frame 8 and move to between the bending component 5 and the pushing component 6, and then the bending operation is performed, so that the pushing component 6 pushes one end of the steel pipe, and at the same time the bending component 5 bends the other end of the steel pipe, thereby realizing flexible switching between loading and processing.

[0052] Furthermore, a second screw 25 is rotatably connected in the third guide rail 14, and the second screw 25 is threadedly connected to a slide 26. A second slide groove 27 is provided at the bottom of the slide 26 for sliding on the third guide rail 14. The material guide cylinder 15 is fixed on the slide 26, and a second motor 28 for driving the second screw 25 to rotate is installed on the fixed frame 3;

[0053] When the steel pipe is on the feeding platform 18 and is blocked by the guide plate 16, the second motor 28 is started to drive the second screw 25 to rotate, and the second screw 25 drives the slide 26 and the guide cylinder 15 to slide slowly along the direction of the third guide rail 14. The guide plate 16 moves slowly on the feeding platform 18, slowly guiding the steel pipe so that the steel pipe moves slowly downward to the conveying platform 29, avoiding wear or collision of the steel pipe caused by the direct accelerated sliding of the steel pipe, thereby ensuring the surface quality of the steel pipe.

[0054] Furthermore, a material guide assembly 7 is provided on both sides of the processing frame 2, and the material guide assembly 7 includes two guide plates 701 fixed to the processing frame 2, a third screw 702 rotatably connected to the processing frame 2, and a connecting frame 703 threadedly connected to the third screw 702. A first vertical guide through hole 704 is provided on the guide plate 701, and first guide rods 705 sliding in the first guide through hole 704 are fixed on both sides of the connecting frame 703. The first guide rod 705 is hinged with a first push rod 706, and a clamping plate 707 sliding on the guide plate 701 is hinged between the ends of the first push rod 706 on both sides. There is a second guide through hole 708 located between the first guide through hole 704 and the conveying platform 29, and the second guide through hole 708 is divided into an upper through hole 7081 and a lower through hole 7082. The lower through hole 7082 is vertical, and the upper through hole 7081 is inclined toward the conveying platform 29. Second guide rods 709 sliding in the second guide through hole 708 are fixed on both sides of the clamping plate 707. The third screw 702 is driven to rotate by the driving assembly 30. Guide grooves parallel to the second guide through hole 708 are provided on the guide plates 701 on both sides, and guide blocks sliding in the guide grooves are fixed on both sides of the clamping plate 707.

[0055] The first motor 23 is started to drive the first screw 22 to rotate, and then the first screw 22 rotates to drive the processing frame 2 to slide along the first guide rail 19 and the second guide rail 20, so that the conveying platform 29 and the processing frame 2 slide away from the feeding frame 8 and move to between the bending component 5 and the pushing component 6. The third screw 702 rotates to drive the connecting frame 703 to slide upward along the guide plate 701, and the first guide rod 705 slides in the first guide through hole 704 to realize the stable sliding and rising of the connecting frame 703. When the connecting frame 703 rises, it passes through the first push rod 706 pushes the second guide rod 709 and the clamping plate 707 to move upward. Under the guidance of the second guide through hole 708, the second guide rod 709 switches from moving vertically upward to rising and moving toward the conveying platform 29, driving the clamping plate 707 to switch from rising from the bottom of the processing frame 2 to rising and moving toward the conveying platform 29. Finally, the clamping plates 707 on both sides are close to the two sides of the steel pipe to support and limit the steel pipe, which can avoid the deviation of the steel pipe during the processing process, significantly improve the bending accuracy, and prevent the steel pipe from being deformed by radial pressure.

[0056] Furthermore, a clamping groove 710 is fixed on the side of the clamping plate 707 close to the conveying platform 29, and a plurality of guide rollers 711 are rotatably connected in the clamping groove 710. The plurality of guide rollers 711 are equidistantly arranged along the axial direction of the clamping groove 710;

[0057] When the clamping plate 707 rises and approaches the steel pipe on the conveyor platform 29, the clamping groove 710 rises synchronously and approaches the conveyor platform 29, so that the clamping grooves 710 on both sides are finally symmetrically clamped on both sides of the steel pipe. When the steel pipe moves along the conveyor platform 29 for bending processing, the steel pipe moves along multiple guide rollers 711, and the multiple guide rollers 711 rotate to reduce the clamping wear between the steel pipe and the clamping groove 710 and the clamping plate 707, thereby ensuring the surface quality of the steel pipe.

[0058] Furthermore, the driving assembly 30 includes a driving rack 3001 fixed to the slide 26, the fixed frame 3 is rotatably connected to the first driving shaft 3002 and the second driving shaft 3003 perpendicular to the first driving shaft 3002, the upper end of the first driving shaft 3002 is fixed with a driving gear 3004 meshed with the driving rack 3001, and the lower end is fixed with a first bevel gear 3005, and one end of the second driving shaft 3003 is fixed with a second bevel gear 3006 meshed with the first bevel gear 3005, fixed plates 31 are fixed on both sides of the processing frame 2, and the third screw 702 is rotatably connected to the fixed frame 2. On the fixed plate 31, one side of the fixed plate 31 is rotatably connected to the third drive shaft 3007, the second drive shaft 3003 is provided with a rectangular groove inside the end away from the second bevel gear 3006, the end of the third drive shaft 3007 is fixed with a rectangular rod 3008 that slides in the rectangular groove, the third drive shaft 3007 is fixed with a third bevel gear 3009, the bottom end of the third screw 702 is fixed with a fourth bevel gear 3010 that meshes with the third bevel gear 3009, and the third screws 702 on both sides are fixed with pulleys 3011, and a transmission belt 3012 is sleeved between the pulleys 3011 on both sides;

[0059] When the second motor 28 is started to drive the second screw 25 to rotate, the second screw 25 drives the slide 26 and the guide cylinder 15 to slide slowly along the direction of the third guide rail 14, and the guide plate 16 moves slowly on the feeding platform 18, slowly guiding the steel pipe so that the steel pipe moves slowly downward to the conveying platform 29. Then the second screw 25 continues to rotate, causing the slide 26 to continue to slide on the third guide rail 14, until the drive rack 3001 begins to mesh with the drive gear 3004, driving the drive gear 3004 to rotate, and then the first drive shaft 3002 coaxially fixed with the drive gear 3004 rotates, driving the first bevel gear 3005 to rotate, and the first bevel gear 3005 drives the second bevel gear 3006 meshed with it to rotate. Then the second drive shaft 3003 rotates, driving the rectangular rod 3008 and the third drive shaft 3007 to rotate through the rectangular groove, and then the third bevel gear 3009 rotates, driving the fourth bevel gear 3010 meshing with it to rotate, and then the third screw 702 coaxial with it rotates, and the third screws 702 on both sides rotate synchronously through the transmission belt 3012, driving the clamping plates 707 and the clamping groove 710 on both sides to rise synchronously and approach the conveying platform 29, so that the steel pipe is clamped after it is loaded onto the conveying platform 29, avoiding the clamping plates 707 and the clamping groove 710 from hindering the steel pipe loading; when a steel pipe is processed, the second screw 25 rotates in the opposite direction, driving the slide 26, the guide cylinder 15 and the guide plate 16 to return, The movable rack 3001 first meshes with the driving gear 3004, driving the driving gear 3004, the first driving shaft 3002, the first bevel gear 3005, the second bevel gear 3006, the second driving shaft 3003 and the third driving shaft 3007 to rotate in the opposite direction, and then the third bevel gear 3009 rotates in the opposite direction, driving the fourth bevel gear 3010 meshing therewith to rotate in the opposite direction, and then the third screw 702 coaxial therewith rotates in the opposite direction, and the third screws 702 on both sides rotate synchronously through the transmission belt 3012, driving the clamping plates 707 and the clamping grooves 710 on both sides to synchronously descend and move away from the conveying platform 29, and finally the clamping plates 707 and the clamping grooves 710 move to the bottom of the conveying platform 29, and the guide plates 70 The height of the guide plate 16 is also lower than the conveying platform 29, so that when the steel pipe is transported from the feeding platform 18 to the conveying platform 29, the guide assembly 7 will not hinder the movement of the steel pipe; after the clamping plate 707 and the clamping groove 710 move to the position below the conveying platform 29, the driving rack 3001 is no longer engaged with the driving gear 3004, and the second screw 25 continues to rotate, driving the slide 26, the guide cylinder 15 and the guide plate 16 to move along the direction of the third guide rail 14 until the end of the guide plate 16 is located on the feeding platform 18. The bottom end surface of the guide plate 16 can be set as an inclined surface that cooperates with the feeding platform 18 to better guide the steel pipe. After waiting for the next steel pipe to be transported to the feeding platform 18, the guide plate 16 guides the steel pipe to slowly fall from the feeding platform 18 to the conveying platform 29.

[0060] Furthermore, a driving frame 24 is fixed on the base 1, and the pushing assembly 6 includes a pushing frame 601 slidably connected to the driving frame 24, and a rotating shaft 612 is rotatably connected to the pushing frame 601, and a turntable 605 is fixedly connected to the end of the rotating shaft 612. A driving cylinder 602 with a cavity inside is fixed on the side of the turntable 605 away from the rotating shaft 612, and the driving cylinder 602 is provided with a plurality of limiting grooves 603 leading to its internal cavity along its circumference, and a cross 604 is slidably connected in the cavity, and the cross 604 frame passes through the limiting groove 603, and a clamping rod 613 corresponding to the number of limiting grooves 603 is slidably connected to the turntable 605. A sliding hole 606 is provided on 605, and the end of the clamping rod 613 slides in the sliding hole 606. A second push rod 607 is hinged between the clamping rod 613 and the cross 604. A U-shaped frame 608 is fixed to the side of the pushing frame 601 away from the clamping rod 613. A pushing cylinder 609 is fixed on the U-shaped frame 608. The output end of the pushing cylinder 609 passes through the U-shaped frame 608, the rotating shaft 612 and the turntable 605 and extends into the cavity of the driving cylinder 602 and is rotatably connected to the cross 604. A third motor 610 is fixed on the U-shaped frame 608. A driving belt 611 is sleeved between the output end of the third motor 610 and the shaft body of the rotating shaft 612.

[0061] When the steel pipe is on the conveying table 29, the two ends of the steel pipe are located between the bending assembly 5 and the pushing assembly 6. At this time, the pushing frame 601, the driving cylinder 602, the clamping rod 613, etc. are all located outside the end of the steel pipe to avoid obstructing the loading of the steel pipe. When the pushing frame 601 is slid on the driving frame 24 and the turntable 605 is abutted against the end face of the steel pipe, multiple clamping rods 613 are extended into the inner cavity of the steel pipe, and the pushing cylinder 609 is started. The output end of the pushing cylinder 609 pulls the cross 604 to slide in the cavity of the driving cylinder 602 toward the turntable 605, and then the cross 604 pushes the multiple clamping rods 613 to move synchronously away from the driving cylinder 602 through the second pushing rod 607 until the multiple clamping rods 613 are abutted against the inner wall of the steel pipe. , to achieve internal support for the end of the steel pipe, so as to facilitate automatic pushing of the steel pipe during bending operation, realize precise positioning control, avoid manual intervention, and eliminate safety hazards; when performing bending operation, start the third motor 610, and the output end of the third motor 610 and the shaft body of the rotating shaft 612 are fixed with pulleys 3011, and the driving belt 611 is sleeved between the two pulleys 3011. When the output end of the third motor 610 rotates, the rotating shaft 612 is driven to rotate by the driving belt 611, and then the driving cylinder 602, the turntable 605 and the clamping rod 613 are driven to rotate synchronously, and the cross 604 rotates relative to the output end of the pushing cylinder 609, so as to realize multi-directional bending of the steel pipe to meet different process requirements.

[0062] Furthermore, the drive frame 24 is provided with a third chute 32 along the direction of the conveying platform 29, one end of the pusher frame 601 slides in the third chute 32, a fourth screw 33 is rotatably connected in the third chute 32, and the drive frame 24 is fixed with a fourth motor 34 that drives the fourth screw 33 to rotate;

[0063] Start the fourth motor 34 to drive the fourth screw 33 to rotate, and then the fourth screw 33 drives the pushing frame 601 to slide on the driving frame 24, so as to move multiple clamping rods 613 into the inner cavity of the steel pipe or move multiple clamping rods 613 out of the inner cavity of the steel pipe, and push the inner support of the steel pipe to achieve precise positioning control.

[0064] Furthermore, the bending assembly 5 includes a bending table 501, which is rotatably connected to a fourth drive shaft. A fifth motor 502 for driving the fourth drive shaft is fixed to the bottom of the bending table 501. The fourth drive shaft is fixed with a movable frame 503 and a bending member 504 from bottom to top. The movable frame 503 is fixed with a bending cylinder 505. A bending plate 506 is fixed at the output end of the bending cylinder 505. The bending table 501 is fixed with a support plate 512 and a support plate 512 facing the support plate 512. The adjusting cylinder 507 and the supporting plate 512 are located between the conveying platform 29 and the bending member 504. The output end of the adjusting cylinder 507 is fixed with an adjusting platform 508 that slides on the bending platform 501. A rodless cylinder 509 is fixed on the adjusting platform 508. A bending channel 510 for the steel pipe to pass through is provided between the bending member 504 and the bending cylinder 505 and between the supporting plate 512 and the rodless cylinder 509. The bending member 504 and the bending plate 506 are provided with an inwardly concave bending groove 511.

[0065] During the bending process, one end of the steel pipe passes through the bending channel 510 and is located between the bending part 504 and the bending cylinder 505, the support plate 512 and the rodless cylinder 509, and the other end is supported by the pushing assembly 6. The bending cylinder 505 and the adjusting cylinder 507 are started. The bending cylinder 505 drives the bending plate 506 to move and clamp the steel pipe between the bending plate 506 and the bending part 504. The adjusting cylinder 507 drives the adjusting platform 508 to move and restrict the steel pipe between the slider coupled with the piston on the rodless cylinder 509 and the support plate 512. At the same time, the fourth motor 34, the fifth motor 502 and the rodless cylinder 509 are started. The fifth motor 502 drives the The fourth driving shaft is driven to rotate, and then the movable frame 503 rotates, the bending plate 506 rotates around the bending part 504 and pushes the steel pipe to bend the steel pipe. During this period, the fourth motor 34 drives the fourth screw 33 to rotate, the pushing frame 601 moves on the driving frame 24, and the slider coupled with the piston on the rodless cylinder 509 moves, which jointly push the steel pipe forward to achieve progressive bending of the steel pipe, which is conducive to forming a continuous and smooth bending profile, avoiding deformation caused by static bending of the steel pipe, and improving bending production accuracy and production quality; when the bending plate 506 bends the steel pipe, the slider and the support plate 512 further support the steel pipe, further effectively preventing deformation of the steel pipe.

[0066] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A steel pipe bending device for processing a bed frame, comprising a base (1), characterized in that: The base (1) is slidably connected to a processing frame (2), and a conveying platform (29) arranged along the axial direction of the steel pipe is fixed on the processing frame (2). The base (1) is fixed with a loading frame (4) and a fixed frame (3) respectively located on both sides of the processing frame (2). The base (1) is provided with a bending assembly (5) and a pushing assembly (6) respectively located at both ends of the processing frame (2). The bending assembly (5) is used to bend the steel pipe, and the pushing assembly (6) is used to push the steel pipe. The loading frame (4) and the fixed frame (3) are both arranged in a plurality of directions along the conveying platform (29). The loading frame (4) is fixed with a feeding frame (8), and storage plates (9) are hinged on both sides of the feeding frame (8). A connecting plate (10) is fixed between the bottoms of the storage plates (9) on both sides. The loading frame (4) is hinged with a feeding cylinder ( 11), the output end of the loading cylinder (11) is hinged to the bottom of the connecting plate (10), the feeding rack (8) is fixed with a top cylinder (12), the output end of the top cylinder (12) is fixed with a top plate (13) which is lifted and lowered between the storage plates (9) on both sides, the fixed rack (3) is fixed with a third guide rail (14) extending from above the conveying platform (29) to above the feeding rack (8), a guide cylinder (15) is slid on the third guide rail (14), the output end of the guide cylinder (15) is fixed with a guide plate (16), the storage plate (9) is fixed with a baffle (17) at one end away from the feeding rack (8), a feeding rack (18) is fixed above the feeding rack (8), and the upper end surfaces of the storage plate (9), the top plate (13) and the feeding rack (18) are all inclined toward the conveying platform (29).

2. The steel pipe bending device for processing a hospital bed frame according to claim 1, characterized in that: A first guide rail (19) and a second guide rail (20) are fixed on the base (1); a first slide groove (21) is provided at the bottom of the processing frame (2) for sliding on the first guide rail (19) and the second guide rail (20); a first screw rod (22) is rotatably connected in the first guide rail (19); and a first motor (23) for driving the first screw rod (22) to rotate is fixed on the base (1).

3. The steel pipe bending device for processing a hospital bed frame according to claim 1, characterized in that: A second screw rod (25) is rotatably connected in the third guide rail (14), and the second screw rod (25) is threadedly connected to a slide seat (26). A second slide groove (27) is provided at the bottom of the slide seat (26) for sliding on the third guide rail (14). The material guide cylinder (15) is fixed on the slide seat (26), and a second motor (28) for driving the second screw rod (25) to rotate is installed on the fixed frame (3).

4. The steel pipe bending device for processing a hospital bed frame according to claim 3, characterized in that: A material guide assembly (7) is provided on both sides of the processing frame (2), and the material guide assembly (7) includes two guide plates (701) fixed to the processing frame (2), a third screw (702) rotatably connected to the processing frame (2), and a connecting frame (703) threadedly connected to the third screw (702). A first vertical guide through hole (704) is provided on the guide plate (701), and first guide rods (705) sliding in the first guide through hole (704) are fixed on both sides of the connecting frame (703). The first guide rod (705) is hinged with a first push rod (706), and a clamping plate (707) sliding on the guide plate (701) is hinged between the ends of the first push rod (706) on both sides. The guide plate (701) is provided with a first guide through hole (704). There is a second guide through hole (708) located between the first guide through hole (704) and the conveying platform (29), the second guide through hole (708) is divided into an upper through hole (7081) and a lower through hole (7082), the lower through hole (7082) is vertical, and the upper through hole (7081) is inclined toward the conveying platform (29), and second guide rods (709) sliding in the second guide through hole (708) are fixed on both sides of the clamping plate (707), and the third screw (702) is driven to rotate by the driving assembly (30), and guide grooves parallel to the second guide through hole (708) are provided on the guide plates (701) on both sides, and guide blocks sliding in the guide grooves are fixed on both sides of the clamping plate (707).

5. The steel pipe bending device for processing a hospital bed frame according to claim 4, characterized in that: A clamping groove (710) is fixed on one side of the clamping plate (707) close to the conveying platform (29), and a plurality of guide rollers (711) are rotatably connected in the clamping groove (710). The plurality of guide rollers (711) are equidistantly arranged along the axial direction of the clamping groove (710).

6. The steel pipe bending device for processing a bed frame according to claim 4, characterized in that: The driving assembly (30) includes a driving rack (3001) fixed to the slide (26); the fixed frame (3) is rotatably connected to a first driving shaft (3002) and a second driving shaft (3003) perpendicular to the first driving shaft (3002); the upper end of the first driving shaft (3002) is fixed with a driving gear (3004) meshed with the driving rack (3001); the lower end of the first driving shaft (3002) is fixed with a first bevel gear (3005); one end of the second driving shaft (3003) is fixed with a second bevel gear (3006) meshed with the first bevel gear (3005); fixed plates (31) are fixed on both sides of the processing frame (2); the third screw (702) is rotatably connected to the fixed frame (3002); On the plate (31), one side of the fixed plate (31) is rotatably connected to a third drive shaft (3007), an end of the second drive shaft (3003) away from the second bevel gear (3006) is provided with a rectangular groove, the end of the third drive shaft (3007) is fixed with a rectangular rod (3008) sliding in the rectangular groove, the third drive shaft (3007) is fixed with a third bevel gear (3009), the bottom end of the third screw (702) is fixed with a fourth bevel gear (3010) meshed with the third bevel gear (3009), the third screw (702) on both sides is fixed with a pulley (3011), and a transmission belt (3012) is sleeved between the pulleys (3011) on both sides.

7. The steel pipe bending device for processing a hospital bed frame according to claim 1, characterized in that: A driving frame (24) is fixed on the base (1), and the pushing assembly (6) includes a pushing frame (601) slidably connected to the driving frame (24), a rotating shaft (612) is rotatably connected to the pushing frame (601), and a turntable (605) is fixedly connected to the end of the rotating shaft (612), and a driving cylinder (602) with a cavity inside is fixed on the side of the turntable (605) away from the rotating shaft (612), and the driving cylinder (602) is provided with a plurality of limiting grooves (603) leading to the cavity inside the driving cylinder (602) along its circumference, and a cross (604) is slidably connected in the cavity, and the frame body of the cross (604) passes through the limiting grooves (603), and the turntable (605) is slidably connected with clamping rods (613) corresponding to the number of the limiting grooves (603), and the turntable (605) is provided with a plurality of limiting grooves (603) leading to the cavity. There is a sliding hole (606), the end of the clamping rod (613) slides in the sliding hole (606), a second push rod (607) is hinged between the rod body of the clamping rod (613) and the cross (604), a U-shaped frame (608) is fixed on the side of the pushing frame (601) away from the clamping rod (613), a pushing cylinder (609) is fixed on the U-shaped frame (608), the output end of the pushing cylinder (609) passes through the U-shaped frame (608), the rotating shaft (612) and the turntable (605) and extends into the cavity of the driving cylinder (602) and is rotatably connected to the cross (604), a third motor (610) is fixed on the U-shaped frame (608), and a driving belt (611) is sleeved between the output end of the third motor (610) and the shaft body of the rotating shaft (612).

8. The steel pipe bending device for processing a hospital bed frame according to claim 7, characterized in that: The driving frame (24) is provided with a third slide groove (32) along the direction of the conveying platform (29), one end of the pushing frame (601) slides in the third slide groove (32), and a fourth screw rod (33) is rotatably connected in the third slide groove (32), and the driving frame (24) is fixed with a fourth motor (34) for driving the fourth screw rod (33) to rotate.

9. The steel pipe bending device for processing a hospital bed frame according to claim 1, characterized in that: The bending assembly (5) comprises a bending table (501), the bending table (501) is rotatably connected to a fourth drive shaft, a fifth motor (502) is fixed at the bottom of the bending table (501) for driving the fourth drive shaft to rotate, a movable frame (503) and a bending member (504) are fixed to the fourth drive shaft from bottom to top, a bending cylinder (505) is fixed to the movable frame (503), a bending plate (506) is fixed to the output end of the bending cylinder (505), and a support plate (512) is fixed to the bending table (501) and the bending member (504) is fixed to the bending plate (506). The adjusting cylinder (507) of the support plate (512) is located between the conveying platform (29) and the bending part (504). The output end of the adjusting cylinder (507) is fixed with an adjusting platform (508) that slides on the bending platform (501). A rodless cylinder (509) is fixed on the adjusting platform (508). A bending channel (510) for the steel pipe to pass through is provided between the bending part (504) and the bending cylinder (505) and between the support plate (512) and the rodless cylinder (509).

10. The steel pipe bending device for processing a bed frame according to claim 9, characterized in that: The bending piece (504) and the bending plate (506) are provided with an inwardly recessed bending groove (511).

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