Pipe bending machine for metal bed frame production

Abstract

The invention relates to the technical field of pipe bending devices, and particularly discloses a pipe bending machine for metal bed frame production, which comprises a rack and a rotating rod, the rotating rod is vertically and rotatably arranged on the rack, a rotating wheel is arranged on the peripheral surface of the rotating rod, and the pipe bending machine further comprises a rotating frame, a first limiting guide assembly, a second limiting guide assembly, a front clamping mechanism and a sliding assembly, the rotating frame is rotationally arranged on the peripheral face of the rotating rod, the first limiting and guiding assembly is arranged on the rotating frame, the front clamping mechanism is arranged on the rotating frame, the sliding assembly is arranged on the rack, the sliding assembly can clamp the rear end of a pipe, the pipe is prevented from self-twisting during bending, and the second limiting and guiding assembly is arranged on the rack; according to the pipe bending machine for metal bed frame production, the front end of a pipe is clamped and fixed to be bent, the pipe is naturally pulled to move according to the bending angle, and therefore the material amount needed for bending and the conveying amount needed for bending are consistent, and the bending effect and precision are improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipe bending devices, and in particular to a pipe bending machine for producing metal bed frames. Background Art

[0002] A pipe bender is a piece of mechanical equipment specially used for processing metal pipes. Its main function is to bend metal pipes. It applies pressure to the pipes through molds and pressure devices to bend them to a predetermined angle to meet the needs of various engineering and product manufacturing. It is mainly used in the construction industry, furniture manufacturing, and the automotive industry.

[0003] A copper tube bending machine is disclosed in a Chinese patent application document with publication number CN110666012A, comprising a frame, a mold processing part is fixedly connected to the upper end of the frame, an adjustable cylinder is fixedly connected to the upper end of the mold processing part, a power end of the adjustable cylinder passes through the upper end of the mold processing part and is fixedly connected to the follow-up mold, one side of the mold processing part is rotatably connected to a tube bending mechanism through a rotating shaft, the upper end of the frame is located on the other side of the mold processing part and is fixedly connected to a placement plate, the front and rear ends of the placement plate are both provided with a feeding mechanism, and the upper end of the frame is located on the other side of the placement plate. A positioning mechanism is provided, which can firmly fix the pipe to be bent in the placement plate so that the pipe will not move during the bending process, thereby ensuring that the bending degree of the pipe is accurate and the possibility of accidents caused by the pipe flying out is avoided, and the bending position of the short pipe can be adjusted according to the position of the two sets of positioning plates, so as to realize the automation of liquid storage type short pipe bending, greatly improve the work efficiency and reduce the labor intensity of the staff.

[0004] The above patent application document adjusts the bending position of the short tube by the position of two sets of positioning plates, thereby realizing the automation of the bending of short tubes of liquid storage devices, greatly improving work efficiency and reducing the labor intensity of staff. However, in the above patent application document, the tube is clamped and fed by the rear end. However, when the rear end feeds the tube, due to different tube diameters or inconsistent tube wall thicknesses, it is easy to cause the problem of different feeding amounts required for bending, which puts a great test on the accuracy of the rear end feeding. The difference between the feeding amount and the amount required for bending can easily lead to wrinkles or cracks at the bending point, so the rear end feeding causes the bending accuracy to be average. Summary of the invention

[0005] The present invention provides a pipe bending machine for producing metal bed frames, aiming to solve the technical problem in the related art that the difference between the feeding amount and the amount required for bending easily leads to wrinkles or cracks at the bending part, and thus the rear end feeding causes the bending accuracy to be general.

[0006] The present invention provides a pipe bending machine for producing metal bed frames, comprising: a frame and a rotating rod, the rotating rod is vertically rotatably arranged on the frame, a rotating wheel is arranged on the outer peripheral surface of the rotating rod, and also comprises: a rotating frame, a first limiting guide assembly, a second limiting guide assembly, a front clamping mechanism, and a sliding assembly, the rotating frame is rotatably arranged on the outer peripheral surface of the rotating rod, the first limiting guide assembly is arranged on the rotating frame, and the first limiting guide assembly can move on the rotating frame so that the first limiting guide assembly can approach or move away from the rotating wheel, thereby realizing the guiding and limiting of the pipe, the front clamping mechanism is arranged on the rotating frame, the front clamping mechanism can fix the pipe, so that the rear end of the pipe can be pulled to move naturally when the pipe is bent, the sliding assembly is arranged on the frame, the sliding assembly can slide along the length direction of the frame, and the sliding assembly can clamp the rear end of the pipe to avoid self-twisting when the pipe is bent, the second limiting guide assembly is arranged on the frame, and the second limiting guide assembly can guide the pipe.

[0007] The beneficial effect of the present invention is that when the tube is bent, the rear end of the tube will be naturally pulled to move toward the rotating rod, so that the tube pulls the sliding assembly and the tube itself to move closer to the rotating rod position, and the tube is bent by clamping and fixing the front end of the tube, and the tube is naturally pulled to move according to the bending angle, so that the amount of material required for bending and the amount of conveying required for bending are consistent, thereby improving the bending effect and accuracy.

[0008] Preferably, the front clamping mechanism includes a vertical support plate, a chuck base, a chuck top cover, a flat threaded plate and claws, the vertical support plate is arranged on the rotating frame, a through hole is opened on the vertical support plate, the chuck base is fixedly arranged on the side wall of the vertical support plate, the chuck top cover is arranged on the chuck base, and the two are fixed by bolts, the flat threaded plate is rotatably arranged on the chuck base, the top surface of the flat threaded plate is an annular guide strip, the bottom surface of the flat threaded plate is arranged with a bevel rack, the top surface of the chuck base is circumferentially arranged with a plurality of bevel gears, and the bevel gears are meshed with the bevel racks.

[0009] The effect is that the front clamping mechanism can fix the front end of the tube bending, thereby avoiding the technical problem of inaccurate feeding accuracy when the rear end is fixed, and improving the bending effect and accuracy.

[0010] Preferably, a motor is provided on the outer peripheral surface of the chuck base, and the output end of the motor is transmission connected to the bevel gear, a plurality of claws are slidingly provided on the chuck top cover, and the bottom of the claws is transmission connected to the annular guide strip on the plane threaded plate, and an anti-skid plate is provided on the side wall of each claw facing the center position, and the anti-skid plate is in the shape of an arc-shaped sheet.

[0011] Preferably, the first limiting guide assembly includes: a telescopic rod, an L-shaped top plate, a connecting plate, and a positioning block. A fixed box is provided at the bottom of the rotating frame, the telescopic rod is obliquely arranged inside the fixed box, a sliding groove is provided at the top of the rotating frame, and the sliding groove is rectangular in shape. The L-shaped top plate is arranged in the sliding groove on the rotating frame, and sliding grooves are provided on two opposite sides in the length direction of the sliding groove. A slide plate is provided on the L-shaped top plate, and both ends of the slide plate extend into the slide groove so that the slide plate and the L-shaped top plate can slide along the length direction of the sliding groove. Two fixed plates are provided at the bottom of the slide plate, and the top end of the telescopic rod is hinged between the two fixed plates.

[0012] The effect is that the first limiting guide component makes the tube more stable when being bent, while avoiding the problem of wrinkles, thereby improving the bending effect of the tube.

[0013] Preferably, the connecting plate is arranged on the outer wall of one side of the L-shaped top plate, the positioning block 1 is arranged on the outer wall of one side of the connecting plate, and the positioning block 2 is fixedly arranged on the outer peripheral surface of the rotating wheel. Both the positioning block 1 and the positioning block 2 have semicircular grooves, and the semicircular grooves on the positioning block 1 and the positioning block 2 are opposite.

[0014] Preferably, the second limiting guide assembly includes: a support plate, a moving block, a guide block and a slide bar, the support plate is arranged on an outer wall of one side of the fixed block, the moving block is slidably arranged on the top surface of the support plate, and the moving block is in a trapezoidal block shape, and a top extension mechanism is also arranged at the bottom of the moving block, which can enable the moving block to slide on the support plate, the slide bar is arranged on the top surface of the support plate, and the moving block and the slide bar slide in cooperation, the guide block is arranged on the vertical side surface of the moving block, and the guide block is also provided with a semicircular groove.

[0015] The effect is that the second position-limiting guide component can guide the pipe when the pipe is bent and pulled to move, thereby improving the bending effect of the pipe.

[0016] Preferably, the sliding assembly includes: a guide plate, a sliding plate, a clamping plate and an anti-slip support, the two guide plates are arranged on the top of the frame, and a second slide groove is opened on the opposite side walls of the two guide plates, the sliding plate is arranged between the two guide plates, and sliding bars are arranged on the outer walls on both sides of the sliding plate, and the sliding bars are located in the second slide groove, so that the movement of the sliding plate is more stable, vertical support plates are arranged at intervals on the top of the sliding plate, and screw rods are arranged on the two vertical support plates, second motors are arranged on the tops of the two vertical support plates, and the output ends of the second motors are connected to the screw rods, and the clamping plate is arranged between the two vertical support plates.

[0017] The effect is that the sliding component can clamp the rear end of the pipe to prevent the pipe from rotating when bending. This not only prevents the pipe from rotating but also reduces the clamping pressure of the front clamping mechanism. At the same time, it ensures that the amount of material required for bending is consistent with the amount of conveying required for bending, thereby improving the bending effect and accuracy.

[0018] Preferably, a spline strip is provided on the bottom surface of the clamping plate, and the screw rod is threadedly connected to the clamping plate, an anti-slip support is provided on the top of the sliding plate, and the anti-slip support is located between two vertical support plates, an arc-shaped groove is also provided on the top surface of the anti-slip support, and a spiral strip is provided in the arc-shaped groove.

[0019] Preferably, a fixing block is provided on one side outer wall of the frame, the rotating rod is vertically arranged on the fixing block, a motor is arranged below the fixing block, and the output end of the motor is transmission-connected to the rotating rod.

[0020] The beneficial effects of the present invention are: When the pipe is bent, the pipe is passed through the front clamping mechanism, and the front clamping mechanism clamps the pipe. The first limit guide assembly and the second limit guide assembly approach the position of the rotating wheel, thereby playing a positioning and guiding role when the pipe is bent, improving the bending effect and accuracy. At the same time, the sliding assembly clamps and fixes the rear end of the pipe to prevent the pipe from self-twisting when it is bent. The rotation of the rotating rod drives the rotating frame and the rotating wheel to rotate. The rotation of the rotating frame drives the first limit guide assembly and the front clamping mechanism to rotate around the rotating rod as the center, thereby realizing the bending of the pipe. When the pipe is bent, it will naturally pull the rear end of the pipe to move toward the rotating rod, so that the pipe pulls the sliding assembly and the pipe itself to approach the position of the rotating rod. The front end of the pipe is clamped and fixed for bending, and the pipe is naturally pulled to move according to the bending angle, so that the amount of material required for bending and the amount of conveying required for bending are consistent, thereby improving the bending effect and accuracy.

[0021] Since the front-end clamping solves the problem of the consistency between the required material quantity and the conveying quantity required for bending, the pipe is prone to self-rotation force at the rear end during bending, and at the same time, it puts a great test on the clamping force of the front clamping mechanism. Therefore, a sliding assembly is provided at the rear end of the pipe, and the sliding assembly can clamp the rear end of the pipe to prevent the pipe from self-rotating during bending. When the pipe is bent, the sliding assembly clamps the rear end of the pipe and fixes it. Therefore, the pipe will pull the sliding assembly to slide along the length direction of the frame, which not only avoids the self-rotation of the pipe but also reduces the clamping pressure of the front clamping mechanism, and at the same time achieves the consistency between the material quantity required for bending and the conveying quantity required for bending, thereby improving the bending effect and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a structural schematic diagram of a rotating frame of the present invention.

[0024] Figure 3 It is a schematic diagram of the moving block structure of the present invention.

[0025] Figure 4 It is a schematic diagram of the L-shaped top plate structure of the present invention.

[0026] Figure 5 It is a schematic diagram of the fixing box structure of the present invention.

[0027] Figure 6 It is a structural schematic diagram of a positioning block of the present invention.

[0028] Figure 7 It is a schematic diagram of the structure of the chuck base of the present invention.

[0029] Figure 8 It is a schematic diagram of the structure of the plane threaded plate of the present invention.

[0030] Fig. 9 The present invention Figure 1 A magnified view of the structure at center.

[0031] Fig.10 It is a schematic diagram of the clamping plate structure of the present invention.

[0032] Reference numerals: 10. Frame; 11. Fixed block; 12. Rotating rod; 13. Rotating wheel; 14. Motor; 15. Guide plate; 16. Slide groove 2; 20. Rotating frame; 21. Fixed box; 22. Telescopic rod; 23. L-shaped top plate; 24. Connecting plate; 25. Positioning block 1; 26. Slide plate; 27. Fixed plate; 29. ​​Positioning block 2; 30. Support plate; 32. Moving block; 33. Guide block; 34. Slide bar; 40. Chuck base; 41. Vertical support plate; 42. Chuck top cover; 43. Flat threaded plate; 44. Claw; 45. Bevel gear; 46. Anti-slide plate; 50. Sliding plate; 51. Sliding bar; 52. Vertical support plate; 53. Screw rod; 54. Second motor; 55. Clamping plate; 56. Spline strip; 57. Anti-slip support; 58. Spiral strip. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0034] like Figures 1 to 10As shown, a pipe bending machine for metal bed frame production of the present invention comprises: a frame 10 and a rotating rod 12, the rotating rod 12 is vertically rotatably arranged on the frame 10, and a rotating wheel 13 is arranged on the outer circumference of the rotating rod 12, and further comprises: a rotating frame 20, a first limiting guide assembly, a second limiting guide assembly, a front clamping mechanism, and a sliding assembly, the rotating frame 20 is rotatably arranged on the outer circumference of the rotating rod 12, the first limiting guide assembly is arranged on the rotating frame 20, and the first limiting guide assembly can move on the rotating frame 20 so that the first limiting guide assembly can approach or move away from the rotating wheel 13. , thereby achieving the guiding and limiting of the pipe, the front clamping mechanism is arranged on the rotating frame 20, the front clamping mechanism can rotate with the rotating frame 20, and the front clamping mechanism can fix the pipe, so that when the pipe is bent, the rear end of the pipe can be pulled to move naturally, the sliding assembly is arranged on the frame 10, the sliding assembly can slide along the length direction of the frame 10, and the sliding assembly can clamp the pipe to avoid the self-twist of the pipe when the pipe is bent. The second limiting guide assembly is arranged on the frame 10 to guide the pipe to improve the bending effect and accuracy.

[0035] When the pipe is bent, the pipe is passed through the front clamping mechanism, which clamps the pipe, and the first limit guide assembly and the second limit guide assembly approach the position of the rotating wheel 13, thereby playing a positioning and guiding role when the pipe is bent, improving the bending effect and accuracy. At the same time, the sliding assembly clamps and fixes the rear end of the pipe to prevent the pipe from self-twisting when it is bent. The rotation of the rotating rod 12 drives the rotating frame 20 and the rotating wheel 13 to rotate. The rotation of the rotating frame 20 drives the first limit guide assembly and the front clamping mechanism to rotate around the rotating rod 12 as the center, thereby realizing the bending of the pipe. When the pipe is bent, it will naturally pull the rear end of the pipe to move toward the rotating rod 12, so that the pipe pulls the sliding assembly and the pipe itself to approach the position of the rotating rod 12. The front end of the pipe is clamped and fixed for bending, and the pipe is naturally pulled to move according to the bending angle, so that the amount of material required for bending and the amount of conveying required for bending are consistent, thereby improving the bending effect and accuracy.

[0036] like Figures 5 to 8As shown, the front clamping mechanism includes: a vertical support plate 41, a chuck base 40, a chuck top cover 42, a flat threaded plate 43 and a clamping claw 44. The vertical support plate 41 is arranged on the rotating frame 20. A through hole is opened on the vertical support plate 41, and the through hole allows the pipe to pass through the vertical support plate 41. The chuck base 40 is fixedly arranged on the side wall of the vertical support plate 41. The chuck top cover 42 is arranged on the chuck base 40, and the two are fixed by bolts. The flat threaded plate 43 is rotatably arranged on the chuck base 40. The top surface of the flat threaded plate 43 is an annular guide strip, and the bottom surface of the flat threaded plate 43 is provided with oblique teeth. A plurality of bevel gears 45 are circumferentially arranged on the top surface of the chuck base 40, and the bevel gears 45 are meshed with the helical racks. A motor is arranged on the outer circumferential surface of the chuck base 40, and the output end of the motor is transmission-connected with the bevel gears 45. A plurality of claws 44 are slidingly arranged on the chuck top cover 42, and the bottom of the claws 44 is meshed with the flat threaded plate 43. An anti-skid plate 46 is arranged on the side wall of each claw 44 toward the center, and the anti-skid plate 46 is in the shape of an arc sheet, so as to be able to better contact with the pipe, while increasing the friction of the pipe and improving the stability of fixing the pipe.

[0037] Therefore, when clamping the pipe, the motor drives the bevel gear 45 to rotate, the rotation of the bevel gear 45 drives the flat threaded plate 43 to rotate, the rotation of the flat threaded plate 43 drives the claw 44 to move toward the center position, the movement of the claw 44 drives the anti-skid plate 46 to move, and multiple anti-skid plates 46 move toward the center to squeeze and fix the pipe, thereby clamping and fixing the front end of the pipe. At the same time, the anti-skid plate 46 is relatively long, so that the clamping is more uniform, which improves the clamping effect while avoiding damage to the outer wall of the pipe.

[0038] like Figures 2 to 6 As shown, the first limiting guide assembly includes: a telescopic rod 22, an L-shaped top plate 23, a connecting plate 24, and a positioning block 25. A fixed box 21 is arranged at the bottom of the rotating frame 20, and the telescopic rod 22 is arranged obliquely inside the fixed box 21. A sliding groove is opened on the top of the rotating frame 20, and the sliding groove is in a rectangular shape. The L-shaped top plate 23 is arranged in the sliding groove on the rotating frame 20, and two opposite sides of the sliding groove in the length direction are provided with sliding grooves. A slide plate 26 is arranged on the L-shaped top plate 23, and both ends of the slide plate 26 extend into the slide groove, so that the slide plate 26 and the L-shaped top plate 23 can slide along the length direction of the sliding groove, two fixed plates 27 are arranged at the bottom of the slide plate 26, and the top end of the telescopic rod 22 is hinged between the two fixed plates 27, the connecting plate 24 is arranged on one side outer wall of the L-shaped top plate 23, the positioning block 1 25 is arranged on one side outer wall of the connecting plate 24, and the outer peripheral surface of the rotating wheel 13 is fixedly provided with a positioning block 29, and the positioning block 1 25 and the positioning block 2 29 are both provided with semicircular grooves, and the semicircular grooves on the positioning block 1 25 and the positioning block 2 29 are opposite, and the semicircular grooves can guide the pipe when bending to ensure the bending effect.

[0039] When it is necessary to guide and limit the pipe, the telescopic rod 22 pushes upward to drive the slide plate 26 to slide along the length direction of the sliding groove, the movement of the slide plate 26 drives the L-shaped top plate 23 to move, the movement of the L-shaped top plate 23 drives the connecting plate 24 to move, the movement of the connecting plate 24 drives the positioning block 1 25 to move, the positioning block 1 25 moves toward the positioning block 29, and the pipe is wrapped by the two grooves on the positioning block 1 25 and the positioning block 2 29 to ensure the stability and accuracy of the pipe when bending.

[0040] like Figures 3 to 6 As shown, the second limiting guide assembly includes: a support plate 30, a moving block 32, a guide block 33 and a slide bar 34. The support plate 30 is arranged on an outer wall of one side of the fixed block 11, and the moving block 32 is slidably arranged on the top surface of the support plate 30, and the moving block 32 is a trapezoidal block. A top extension mechanism is also arranged at the bottom of the moving block 32, which can enable the moving block 32 to slide on the support plate 30. The slide bar 34 is arranged on the top surface of the support plate 30, and the moving block 32 and the slide bar 34 slide and cooperate to make the movement of the moving block 32 more stable. The guide block 33 is arranged on the vertical side surface of the moving block 32, and the guide block 33 is also provided with a semicircular groove, so that when the pipe is bent, it plays a guiding role when pulling the subsequent pipe to move, so that the movement of the pipe is more stable, thereby improving the bending effect.

[0041] Since the front clamping mechanism is located at the front end of the bend and is closer to the bend, the fixing force for the pipe is greater, and pulling the pipe to move through the bend will cause the pipe to rotate. Therefore, a sliding assembly is provided at the rear end of the pipe to clamp and fix the rear end of the pipe, mainly to prevent the self-rotation of the pipe from affecting the bend. At the same time, when the pipe moves, it can pull the sliding assembly to move synchronously.

[0042] like Figures 9 and 10As shown, the sliding assembly includes: a guide plate 15, a sliding plate 50, a clamping plate 55 and an anti-slip support 57. The two guide plates 15 are arranged on the top of the frame 10, and the two guide plates 15 are provided with a second slide groove 16 on the opposite side walls. The sliding plate 50 is arranged between the two guide plates 15. The outer walls of both sides of the sliding plate 50 are provided with sliding bars 51, and the sliding bars 51 are located in the second slide groove 16, so that the movement of the sliding plate 50 is more stable. The top of the sliding plate 50 is spaced apart with a vertical support plate 52, and the two vertical support plates 52 are provided with a screw rod 53. The two vertical support plates 5 2 is provided with a second motor 54 at the top, and the output end of the second motor 54 is connected to the screw rod 53, the clamping plate 55 is arranged between the two vertical support plates 52, the bottom surface of the clamping plate 55 is provided with a spline strip 56, and the screw rod 53 is threadedly connected with the clamping plate 55, the anti-skid support 57 is arranged on the top of the sliding plate 50, and the anti-skid support 57 is located between the two vertical support plates 52, the top surface of the anti-skid support 57 is also provided with an arc groove, and a spiral strip 58 is arranged in the arc groove, and the spiral strip 58 is arranged to increase the friction with the outer wall of the pipe and improve the fixing effect on the pipe.

[0043] When the sliding assembly fixes the rear end of the pipe, the pipe is first placed in the arc-shaped groove on the anti-slip support 57, and the second motor 54 drives the screw rod 53 to rotate. The rotation of the screw rod 53 drives the clamping plate 55 to move downward. When the clamping plate 55 moves downward to the pipe, the spline strip 56 will contact the outer circumference of the pipe, and at the same time squeeze the pipe downward so that the spiral strip 58 contacts the outer circumference of the pipe as much as possible, thereby preventing the pipe from rotating when bending. When the pipe is bent, the sliding assembly clamps and fixes the rear end of the pipe, so the pipe will pull the sliding plate 50 to slide along the length direction of the frame 10, so that the amount of material required for bending and the amount of conveying required for bending are consistent, thereby improving the bending effect and accuracy.

[0044] like Figures 1 to 3 As shown, a fixed block 11 is provided on one side outer wall of the frame 10, a rotating rod 12 is vertically provided on the fixed block 11, a motor 14 is provided below the fixed block 11, and an output end of the motor 14 is transmission-connected to the rotating rod 12, and the motor 14 can drive the rotating rod 12 to rotate.

[0045] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A pipe bending machine for producing a metal bed frame, comprising: The machine frame (10) and the rotating rod (12), the rotating rod (12) being vertically rotatably arranged on the machine frame (10), and the outer peripheral surface of the rotating rod (12) being provided with a rotating wheel (13), characterized in that it also includes: a rotating frame (20), a first limiting guide assembly, a second limiting guide assembly, a front clamping mechanism, and a sliding assembly, the rotating frame (20) being rotatably arranged on the outer peripheral surface of the rotating rod (12), the first limiting guide assembly being provided on the rotating frame (20), and the first limiting guide assembly being able to move on the rotating frame (20) so that the first limiting guide assembly can The front clamping mechanism is arranged on the rotating frame (20), and the front clamping mechanism can fix the pipe so that the pipe at the rear end can be pulled to move naturally when the pipe is bent. The sliding assembly is arranged on the frame (10), and the sliding assembly can slide along the length direction of the frame (10). At the same time, the sliding assembly can clamp the rear end of the pipe to prevent the pipe from twisting when it is bent. The second limiting guide assembly is arranged on the frame (10), and the second limiting guide assembly can guide the pipe.

2. A pipe bending machine for metal bed frame production according to claim 1, characterized in that: The front clamping mechanism comprises a vertical support plate (41), a chuck base (40), a chuck top cover (42), a plane threaded plate (43) and a clamping claw (44); the vertical support plate (41) is arranged on the rotating frame (20); a through hole is opened on the vertical support plate (41); the chuck base (40) is fixedly arranged on the side wall of the vertical support plate (41); the chuck top cover (42) is arranged on the chuck base (40), and the two are fixed by bolts; the plane threaded plate (43) is rotatably arranged on the chuck base (40); the top surface of the plane threaded plate (43) is an annular guide strip; the bottom surface of the plane threaded plate (43) is provided with a bevel rack; the top surface of the chuck base (40) is circumferentially provided with a plurality of bevel gears (45); and the bevel gears (45) are meshed with the bevel rack.

3. A pipe bending machine for metal bed frame production according to claim 2, characterized in that: A motor is provided on the outer peripheral surface of the chuck base (40), and the output end of the motor is transmission-connected to the bevel gear (45); a plurality of claws (44) are slidably provided on the chuck top cover (42), and the bottom of the claws (44) is transmission-connected to the annular guide strip on the plane threaded plate (43); an anti-slip plate (46) is provided on the side wall of each claw (44) facing the center, and the anti-slip plate (46) is in the shape of an arc sheet.

4. A pipe bending machine for metal bed frame production according to claim 3, characterized in that: The first limiting guide assembly comprises: a telescopic rod (22), an L-shaped top plate (23), a connecting plate (24) and a positioning block (25); a fixing box (21) is arranged at the bottom of the rotating frame (20); the telescopic rod (22) is arranged obliquely inside the fixing box (21); a sliding groove is provided at the top of the rotating frame (20); the sliding groove is in a rectangular shape; the L-shaped top plate (23) is arranged in the sliding groove on the rotating frame (20); and two opposite sides in the length direction of the sliding groove are provided with sliding grooves; a sliding plate (26) is provided on the L-shaped top plate (23); and both ends of the sliding plate (26) extend into the sliding groove so that the sliding plate (26) and the L-shaped top plate (23) can slide along the length direction of the sliding groove; two fixing plates (27) are provided at the bottom of the sliding plate (26); and the top end of the telescopic rod (22) is hinged between the two fixing plates (27).

5. A pipe bending machine for metal bed frame production according to claim 4, characterized in that: The connecting plate (24) is arranged on an outer wall of one side of the L-shaped top plate (23), the positioning block 1 (25) is arranged on an outer wall of one side of the connecting plate (24), and the outer peripheral surface of the rotating wheel (13) is fixedly provided with a positioning block 2 (29), and the positioning block 1 (25) and the positioning block 2 (29) both have semicircular grooves, and the semicircular grooves on the positioning block 1 (25) and the positioning block 2 (29) are opposite to each other.

6. A pipe bending machine for metal bed frame production according to claim 1, characterized in that: The second position-limiting guide assembly comprises: a support plate (30), a moving block (32), a guide block (33) and a slide bar (34); the support plate (30) is arranged on an outer wall of one side of the fixed block (11); the moving block (32) is slidably arranged on the top surface of the support plate (30); the moving block (32) is in the shape of a trapezoidal block; a top extension mechanism is also arranged at the bottom of the moving block (32) so as to enable the moving block (32) to slide on the support plate (30); the slide bar (34) is arranged on the top surface of the support plate (30); the moving block (32) and the slide bar (34) are slidably matched; the guide block (33) is arranged on a vertical side surface of the moving block (32); and the guide block (33) is also provided with a semicircular groove.

7. A pipe bending machine for producing metal bed frames according to claim 1, characterized in that: The sliding assembly comprises: a guide plate (15), a sliding plate (50), a clamping plate (55) and an anti-slip support (57). The two guide plates (15) are arranged on the top of the frame (10), and a second slide groove (16) is opened on the opposite side walls of the two guide plates (15). The sliding plate (50) is arranged between the two guide plates (15). The outer walls of both sides of the sliding plate (50) are provided with sliding bars (51), and the sliding bars (51) are located in the second slide groove (16), so that the sliding plate (50) moves more stably. Vertical support plates (52) are arranged at intervals on the top of the sliding plate (50), and the two vertical support plates (52) are provided with screw rods (53). The tops of the two vertical support plates (52) are provided with second motors (54), and the output ends of the second motors (54) are connected to the screw rod (53). The clamping plate (55) is arranged between the two vertical support plates (52).

8. A pipe bending machine for producing metal bed frames according to claim 7, characterized in that: The bottom surface of the clamping plate (55) is provided with a spline strip (56), and the screw rod (53) is threadedly connected to the clamping plate (55). The anti-slip support (57) is provided on the top of the sliding plate (50), and the anti-slip support (57) is located between the two vertical support plates (52). The top surface of the anti-slip support (57) is also provided with an arc-shaped groove, and a spiral strip (58) is provided in the arc-shaped groove.

9. A pipe bending machine for producing metal bed frames according to claim 1, characterized in that: A fixing block (11) is disposed on an outer wall of one side of the frame (10), a rotating rod (12) is vertically disposed on the fixing block (11), a motor (14) is disposed below the fixing block (11), and an output end of the motor (14) is drivingly connected to the rotating rod (12).

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