Metal material processing auxiliary production equipment

Abstract

The present invention relates to the field of metal material processing equipment, and in particular to metal material processing auxiliary production equipment, including a accommodating tube with a through front end, a clamping assembly provided at the front end of the accommodating tube for clamping and fixing a metal pipe fitting, a strip air bag provided in the accommodating tube, and an air control assembly provided at the rear end of the accommodating tube. The rear end of the strip air bag is connected to the air control assembly, and the front end of the strip air bag freely passes through the front end of the accommodating tube. The air control assembly supplies air to the strip air bag so that the strip air bag expands and penetrates into the interior of the metal pipe fitting to support its inner cavity. The present invention adopts a clamping assembly to supply air to the strip air bag so that the expanded strip air bag supports the inner cavity of the metal pipe fitting, effectively avoiding abnormal deformation of the metal pipe fitting during the bending process, especially in the bending processing of thin-walled metal pipes, the support of the strip air bag can most stably maintain its bending shape.

Description

Technical Field

[0001] The present invention relates to the field of metal material processing equipment, in particular to metal material processing auxiliary production equipment. Background Art

[0002] Metal pipes are common metal materials and are widely used in construction, machinery, life and other fields. Metal pipes need to be bent according to specific usage requirements. The pipe bender is an automated bending equipment for metal pipes. It rotates the metal pipe around the extrusion wheel through the swinging parts, so that the metal pipe is bent into a certain angle on the surface of the extrusion wheel, which is highly efficient.

[0003] When bending metal tubes directly with a tube bender, a certain degree of deformation will occur at the bending part of the metal tube. The deformation range is directly related to the bending angle and the strength of the pipe wall. If thin-walled tubes are directly extruded and bent, the bending part of the metal tube will be greatly deformed, which not only reduces the appearance, but also affects the normal use efficiency and may even cause bending cracks. Therefore, we provide an auxiliary production equipment for the bending of thin-walled metal tubes. Summary of the Invention

[0004] The purpose of the present invention is to solve the following problems existing in the prior art: when a metal tube is directly bent by a tube bender, a certain degree of deformation will occur at the bent portion of the metal tube. The deformation amplitude is directly related to the bending angle and the strength of the pipe wall. If a thin-walled tube is directly extruded and bent, the bent portion of the metal tube will be deformed to a large extent, which not only reduces the aesthetics, but also affects the normal use efficiency and may even cause bending cracks. Therefore, we provide an auxiliary production equipment for the bending processing of thin-walled metal tubes.

[0005] In order to solve the problems existing in the prior art, the present invention provides auxiliary production equipment for metal material processing, including a accommodating tube with a through front end, a clamping assembly is provided at the front end of the accommodating tube for clamping and fixing the metal pipe fitting, a strip airbag is provided in the accommodating tube, and an air control assembly is provided at the rear end of the accommodating tube. The rear end of the strip airbag is connected to the air control assembly, and the front end of the strip airbag can freely pass through the front end of the accommodating tube. The air control assembly supplies air to the strip airbag, so that the strip airbag expands and penetrates into the interior of the metal pipe fitting to support its inner cavity.

[0006] Preferably, the strip-shaped airbag includes a strip-shaped outer bladder body and an inner bladder body, the diameter of the inner bladder body is smaller than the diameter of the outer bladder body, the inner bladder body is placed inside the outer bladder body, the rear ends of the outer bladder body and the inner bladder body are connected to the air control component, and the front ends of the outer bladder body and the inner bladder body are jointly connected to the material penetration component.

[0007] Preferably, the air control component includes an air pump and a base block, the rear ends of the outer sac and the inner sac are sealed and connected to the base block, the exhaust end of the air pump is connected to two groups of electromagnetic reversing valves, the two groups of electromagnetic reversing valves are respectively connected to the inner cavity of the inner sac and the gap between the outer sac and the inner sac, the inner cavity of the inner sac and the gap between the outer sac and the inner sac are all provided with pressure sensors, and the electromagnetic reversing valve, pressure sensor, and air pump are electrically connected to the controller.

[0008] Preferably, the material threading assembly includes a front cap body, a middle cap body, and a rear cap body that are fitted in sequence. The centers of the front cap body, the middle cap body, and the rear cap body are fixed by screws. The front cap body, the middle cap body, and the rear cap body form an outer clamping groove and an inner clamping groove. The outer clamping groove and the inner clamping groove are both truncated cone-shaped gaps. The front ends of the outer capsule body and the inner capsule body are respectively connected to the inside of the outer clamping groove and the inner clamping groove.

[0009] Preferably, the front cap body, the middle cap body and the rear cap body have a spherical or ellipsoidal shape after being fitted together.

[0010] Preferably, an elastic rope is inserted into the inner bag body, the front end of the elastic rope is connected to the rear cap body, and the rear end of the elastic rope is connected to the base block.

[0011] Preferably, the front end of the inner cavity of the accommodating tube has a reduced diameter portion, the reduced diameter portion is in an arc-shaped closing shape, and the closing size is smaller than the size of the threading component.

[0012] Preferably, the clamping assembly includes an expansion tube, which is fixed to the front end of the accommodating tube, a ring is slidably sleeved on the outside of the accommodating tube, and multiple sets of connecting arms are rotatably arranged around the ring. The connecting arms are rotatably connected to the clamping arms, which pass through the outside of the expansion tube to the inside, and the middle part of the clamping arms is rotatably connected to the expansion tube. A cylinder is provided on the outside of the accommodating tube, and the telescopic end of the cylinder is connected to the ring.

[0013] Compared with related technologies, the metal material processing auxiliary production equipment provided by the present invention has the following beneficial effects:

[0014] 1. The present invention uses a clamping assembly to supply air to the strip airbag, so that the inflated strip airbag supports the inner cavity of the metal pipe, effectively preventing the metal pipe from abnormal deformation during the bending process. Especially in the bending process of thin-walled metal pipes, the support of the strip airbag can most stably maintain its bending shape;

[0015] 2. The present invention forms an inner and outer bladder cavity through an outer bladder body and an inner bladder body. By independently controlling the air supply to the inner and outer bladder cavities, the strip-shaped airbag can be inserted into the metal pipe in a reduced diameter state, facilitating the expansion of the strip-shaped airbag.

[0016] 3. The present invention uses the elastic force of the elastic rope to enable the outer and inner bladders to automatically penetrate into the metal tube after ventilation, and automatically retract into the receiving tube after exhaust, thereby facilitating the continuous auxiliary implementation of the metal tube bending work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the strip-shaped airbag passing through the accommodation tube of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the main strip-shaped airbag of the present invention being accommodated in the accommodating tube;

[0020] Figure 4 This is a schematic diagram of the structure of the gas control component of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the electromagnetic reversing valve of the present invention;

[0022] Figure 6 Schematic diagram of the structure of the material threading assembly of the present invention;

[0023] Figure 7 It is a schematic structural diagram of the clamping assembly of the present invention.

[0024] Numbers in the figure: 1. Accommodating tube; 2. Clamping assembly; 21. Expanding tube; 22. Collar; 23. Cylinder; 24. Connecting arm; 25. Clamping arm; 3. Air control assembly; 31. Air pump; 32. Solenoid reversing valve; 33. Pressure sensor; 34. Base block; 35. Controller; 4. Strip air bag; 41. Outer bag body; 42. Inner bag body; 43. Elastic rope; 5. Metal pipe; 6. Material threading assembly; 61. Front cap body; 62. Middle cap body; 63. Rear cap body; 64. Outer clamping groove; 65. Inner clamping groove; 66. Screw; 7. Reduced diameter part. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0027] Example 1

[0028] like Figure 1 and Figure 7 As shown, the metal material processing auxiliary production equipment is composed of a containing tube 1, which has a cylindrical inner cavity that passes through the front end of the containing tube 1;

[0029] A clamping assembly 2 is provided at the front end of the accommodating tube 1. The clamping assembly 2 includes an expanding tube 21, which is fixed to the front end of the accommodating tube 1. The inner diameter of the expanding tube 21 is larger than that of the accommodating tube 1. A plurality of through grooves are evenly provided around the expanding tube 21. A plurality of clamping arms 25 extend through the through grooves. The middle portion of the clamping arms 25 is rotatably connected to the expanding tube 21. A collar 22 is slidably sleeved on the outer wall of the accommodating tube 1. A plurality of connecting arms 24 are rotatably provided around the collar 22. The ends of the connecting arms 24 are rotatably connected to the clamping arms 25 and the collar 22, respectively. A cylinder 23 is fixed to the outer wall of the accommodating tube 1. The telescopic end of the cylinder 23 is fixedly connected to the collar 22.

[0030] The inner end of the clamping arm 25 is bent and is used to clamp the metal pipe 5;

[0031] The receiving tube 1 is equipped with a planar moving assembly for driving the receiving tube 1 to move between the loading station, the bending station, and the unloading station. The planar moving assembly drives the receiving tube 1 to the loading station, and one end of the metal pipe 5 is inserted into the expansion tube 21. The cylinder 23 is activated and extended, pushing the collar 22 to move on the surface of the receiving tube 1, causing the connecting arm 24 to synchronously rotate the clamping arm 25. The inner ends of all the clamping arms 25 rotate and contract synchronously to stably clamp the metal pipe 5.

[0032] The plane moving assembly drives the containing tube 1 and the clamped metal pipe 5 to move to the bending station for bending processing. The bent metal pipe 5 can be unloaded by an independent unloading assembly, or moved to the discharge station by the plane moving assembly. The cylinder 23 contracts, causing the inner end of the clamping arm 25 to expand and move, releasing the metal pipe 5.

[0033] The red end of the accommodating tube 1 is provided with an air control assembly 3, which includes an air pump 31 and a base block 34. The air pump 31 is fixed to the outer wall of the accommodating tube 1, and the base block 34 is fixed to the rear of the accommodating tube 1;

[0034] like Figure 2-5 As shown, a strip-shaped airbag 4 is arranged in the accommodating tube 1. The strip-shaped airbag 4 includes a strip-shaped outer bladder 41 and an inner bladder 42. The outer bladder 41 and the inner bladder 42 are both made of elastic rubber material. The diameter of the inner bladder 42 is smaller than that of the outer bladder 41. The inner bladder 42 is placed inside the outer bladder 41. The front ends of the outer bladder 41 and the inner bladder 42 are commonly connected to the threading assembly 6. The rear ends of the outer bladder 41 and the inner bladder 42 are sealed and connected to the base block 34. The rear ends of the outer bladder 41 and the inner bladder 42 are sealed and connected to the base block 34, so that the interior of the inner bladder 42 is a sealed inner bladder cavity, and the space between the outer bladder 41 and the inner bladder 42 is a sealed outer bladder cavity.

[0035] The exhaust end of the air pump 31 is connected to two sets of electromagnetic reversing valves 32, which are connected to the inner and outer capsule cavities respectively. Pressure sensors 33 are respectively set in the inner and outer capsule cavities. A controller 35 is integrated on the surface of the air pump 31. The electromagnetic reversing valves 32, pressure sensors 33, and air pump 31 are electrically connected to the controller 35.

[0036] In the non-working state, the outer bladder 41 and the inner bladder 42 are contracted. When the metal pipe 5 is inserted, the air pump 31 is turned on to supply air, and a set of electromagnetic reversing valves 32 are opened to allow the gas to be introduced into the inner bladder cavity. The inner bladder 42 expands to form a cylindrical shape with a smaller diameter, which is used to shape and support the outer bladder 41 to penetrate the metal pipe 5. After the outer bladder 41 penetrates the metal pipe 5, the previous set of electromagnetic reversing valves 32 are closed, and the other set of electromagnetic reversing valves 32 are opened to supply air into the outer bladder cavity, so that the outer bladder 41 expands to form a support for the metal pipe 5. The expansion support of the outer bladder 41 effectively alleviates the abnormal deformation of the metal pipe 5 during the bending process, maintains the precise shape of the bending part of the metal pipe 5, and has a more obvious auxiliary protection effect for the bending of thin-walled metal pipes.

[0037] After the metal pipe 5 is processed, the controller 35 controls the electromagnetic reversing valve 32 to open and release the gas in the outer bladder cavity, so that the outer bladder 41 shrinks in volume, making it easier to be drawn out from the bent metal pipe 5;

[0038] The pressure sensor 33 is used to monitor the air pressure intensity in the inner and outer bladder cavities and feed back to the controller 35 to ensure that the outer and inner bladder bodies 41 and 42 reach the set air pressure intensity to ensure safety.

[0039] Example 2

[0040] like Figure 2-3 As shown in , 5-6, the material threading assembly 6 includes a front cap body 61, a middle cap body 62 and a rear cap body 63 that are sequentially fitted together. The outer shape of the front cap body 61, the middle cap body 62 and the rear cap body 63 after fitting together is spherical or ellipsoidal. The front cap body 61, the middle cap body 62 and the rear cap body 63 sequentially form a truncated cone-shaped outer clamping groove 64 and an inner clamping groove 65. A through hole is provided at the center position of the front cap body 61, the middle cap body 62 and the rear cap body 63, and the front ends of the outer capsule 41 and the inner capsule 42 are respectively connected to the outer clamping groove 64 and the inner clamping groove 65. A screw 66 is used to penetrate the through hole from the end of the front cap body 61 and be threadedly connected to the through hole of the rear cap body 63, so that the front ends of the outer capsule 41 and the inner capsule 42 are sealed and fixed in the outer clamping groove 64 and the inner clamping groove 65;

[0041] An elastic cord 43 is inserted into the inner bag body 42 , the front end of the elastic cord 43 is connected to the rear cap body 63 , and the rear end of the elastic cord 43 is connected to the base block 34 ;

[0042] The front end of the inner cavity of the accommodating tube 1 has a reduced diameter portion 7, which is in an arc-shaped closing shape, and the closing size is smaller than the size of the material-piercing component 6;

[0043] In the non-bending state, the inner and outer cavities shrink, causing the outer and inner bladder bodies 41 and 42 to be in a loose state. The outer and inner bladder bodies 41 and 42 are retracted into the receiving tube 1 by the tension of the elastic cord 43, and the threading assembly 6 is stuck in the position of the reduced diameter portion 7. At this time, the elastic cord 43 is still in a stretched state, causing the outer and inner bladder bodies 41 and 42 to adhere to the straight line formed by the elastic cord 43 and the threading assembly 6, and stably shrink in the receiving tube 1.

[0044] After the clamping assembly 2 clamps the metal pipe 5, the air pump 31 is used to supply air to the inner bladder cavity, causing the inner bladder 42 to expand, stretching the elastic cord 43. The expanded inner bladder 42 then pushes the outer bladder 41 into the metal pipe 5 and penetrates the metal pipe 5 under the guidance of the threading assembly 6. Then, the outer bladder cavity is inflated again, causing the outer bladder 41 to expand and support the inner cavity of the metal pipe 5.

[0045] After the bending process of the metal pipe 5 is completed, the gas in the outer capsule cavity is released first to shrink the outer capsule 41 and reduce its diameter, and then the gas in the inner capsule 42 is released, and the inner capsule 42 gradually relaxes and shrinks. Under the tension of the elastic rope 43, the outer capsule 41 and the inner capsule 42 are automatically stored in the accommodating tube 1, and the threading component 6 is blocked by the reduced diameter part 7 to keep the outer capsule 41 and the inner capsule 42 accurately threaded out next time.

Claims

1. A metal material processing auxiliary production equipment, comprising a receiving tube (1) with a through front end, a clamping assembly (2) provided at the front end of the receiving tube (1) for clamping and fixing a metal pipe (5), characterized in that: The housing tube (1) has a strip-shaped airbag (4) therein, and the rear end of the housing tube (1) is provided with an air control assembly (3). The rear end of the strip-shaped airbag (4) is connected to the air control assembly (3), and the front end of the strip-shaped airbag (4) freely passes through the front end of the housing tube (1). The air control assembly (3) supplies air to the strip-shaped airbag (4), so that the strip-shaped airbag (4) expands and penetrates into the interior of the metal pipe (5) to support its inner cavity. The strip-shaped airbag (4) comprises a strip-shaped outer bladder body (41) and an inner bladder body (42); the diameter of the inner bladder body (42) is smaller than that of the outer bladder body (41); the inner bladder body (42) is placed inside the outer bladder body (41); the rear ends of the outer bladder body (41) and the inner bladder body (42) are connected to the air control component (3); and the front ends of the outer bladder body (41) and the inner bladder body (42) are connected to the material threading component (6); The material threading assembly (6) includes a front cap body (61), a middle cap body (62), and a rear cap body (63) that are sequentially fitted together. The centers of the front cap body (61), the middle cap body (62), and the rear cap body (63) are fixed by screws (66). An outer clamping groove (64) and an inner clamping groove (65) are formed between the front cap body (61), the middle cap body (62), and the rear cap body (63). Both the outer clamping groove (64) and the inner clamping groove (65) are truncated cone-shaped gaps. The front ends of the outer capsule body (41) and the inner capsule body (42) are connected to the inner portions of the outer clamping groove (64) and the inner clamping groove (65), respectively. The front cap body (61), the middle cap body (62), and the rear cap body (63) are formed into a spherical or ellipsoidal shape after being joined together; The air control assembly (3) comprises a base block (34), and rear ends of the outer sac (41) and the inner sac (42) are sealed and connected to the base block (34); An elastic cord (43) is inserted into the inner capsule (42), the front end of the elastic cord (43) is connected to the rear cap (63), and the rear end of the elastic cord (43) is connected to the base block (34); The front end of the inner cavity of the accommodating tube (1) has a reduced diameter portion (7), the reduced diameter portion (7) is in an arc-shaped closing shape, and the closing size is smaller than the size of the threading component (6).

2. The metal material processing auxiliary production equipment according to claim 1, characterized in that: The air control component (3) further comprises an air pump (31), the exhaust end of the air pump (31) being connected to two sets of electromagnetic reversing valves (32), the two sets of electromagnetic reversing valves (32) being connected to the inner cavity of the inner sac (42) and the gap between the outer sac (41) and the inner sac (42), respectively. The inner cavity of the inner sac (42) and the gap between the outer sac (41) and the inner sac (42) are all provided with pressure sensors (33), and the electromagnetic reversing valves (32), the pressure sensors (33) and the air pump (31) are electrically connected to a controller (35).

3. The metal material processing auxiliary production equipment according to claim 1, characterized in that: The clamping assembly (2) includes an expansion tube (21), which is fixed to the front end of the accommodating tube (1). A collar (22) is slidably sleeved on the outside of the accommodating tube (1), and a plurality of connecting arms (24) are rotatably arranged around the collar (22). The connecting arms (24) are rotatably connected to clamping arms (25). The clamping arms (25) extend from the outside of the expansion tube (21) to the inside, and the middle of the clamping arms (25) is rotatably connected to the expansion tube (21). A cylinder (23) is arranged on the outside of the accommodating tube (1), and the telescopic end of the cylinder (23) is connected to the collar (22).

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