Integrated processing equipment for pressure-relief explosion-proof tank

Abstract

The invention relates to the related technical field of welding equipment, and discloses integrated machining equipment for a pressure relief anti-explosion tank, which comprises a main base, a welding part is arranged on the main base, an inclined plate is further arranged on the upper side of the main base, and a tail positioning assembly is oppositely arranged on the upper side of the inclined plate. The tail positioning assembly comprises a tail support which is vertically and upwards fixed to the tail end of the inclined plate, the tail support comprises a first plate and a second plate which are overlapped with each other, and circular through grooves are formed in the middles of the first plate and the second plate correspondingly, and by arranging a hydraulic linkage compensation system, when an inner supporting roller makes contact with an inner cylinder, a piston part extrudes a hydraulic cavity to generate a pressure signal; and when the pressure does not exceed the standard, the first electromagnetic valve is opened to enable hydraulic oil to flow to a chamber which is not in contact with the roller, and the radial expansion of the inner supporting roller at the corresponding position is driven, so that the deformation caused by the thin-wall inner cylinder is compensated, the dynamic balance of three-point supporting force is realized, the irregular deformation of the inner cylinder is actively compensated, and the coaxiality deviation is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field related to welding equipment, and more specifically, relates to an integrated processing equipment for pressure relief and explosion-proof tanks. Background Art

[0002] As a special safety device, explosion-proof tanks are usually composed of an inner cylinder (explosion-proof layer) and an outer cylinder (protective layer) nested together. During the manufacturing process, the coaxiality and welding quality of the inner and outer cylinders directly determine the product's explosion-proof performance and service life. Traditional manufacturing processes face the following technical bottlenecks: First, the problem of thin-wall deformation. The inner cylinder has a thin wall, especially the large-diameter cylinder, which is prone to irregular deformation during processing and assembly, resulting in excessive circular runout and difficulty in achieving high-precision coaxial positioning with the outer sleeve.

[0003] Second, the adaptability of thin positioning is poor. Most existing fixtures use rigid support structures, which cannot adaptively compensate for local deformation of the inner cylinder. Forced assembly will aggravate the stress concentration of the cylinder and cause hidden dangers of microcracks.

[0004] Third, the welding quality is unstable. The coaxiality deviation of the inner and outer cylinders will directly lead to uneven weld gaps. Traditional welding processes are difficult to ensure the consistency of the circumferential weld penetration, and are prone to defects such as lack of fusion and porosity.

[0005] In view of this, the existing structure and defects are studied and improved, and an integrated processing equipment for pressure relief and explosion-proof tanks is provided in order to achieve a more practical purpose. Summary of the Invention

[0006] The present invention provides an integrated processing device for a pressure relief explosion-proof tank, which is used to overcome the above-mentioned defects in the prior art.

[0007] The purpose and effect of the integrated processing equipment for pressure relief and explosion-proof tanks of the present invention are achieved by the following specific technical means: An integrated processing equipment for pressure relief explosion-proof tanks includes a main base, a welding portion is provided on the main base, an inclined plate is further provided on the upper side of the main base, a tail positioning assembly is relatively provided on the upper side of the inclined plate, the tail positioning assembly includes a tail bracket fixed vertically upward to the tail end of the inclined plate, the tail bracket includes a first plate and a second plate superimposed on each other, a circular through groove is provided in the middle of the first plate and the second plate, the first plate is provided with an outer support rod that can be radially extended, an outer support roller that can switch between a rotating or fixed state is provided at the end near the center of the outer support rod, a rotating open loop is rotatably provided on the second plate, and a power device for driving the rotating open loop to rotate is also provided on one side of the first plate. There are at least three bending rods distributed at intervals on the upper circumference, and the middle part of each bending rod is hinged to the side of the rotating open ring, and the end of the bending rod close to the center is provided with an inner support roller that cannot rotate, and the ends of the adjacent bending rods away from the center are hinged by a synchronous connecting rod. The bending rod is provided with a coordination slide groove along its own length direction, and the inner support roller can slide freely in the coordination slide groove. A hydraulic cavity is provided in the part of the bending rod away from the center, and a piston part is slidingly arranged in the hydraulic cavity. The inner support roller is fixedly connected to the piston part by a connecting rod, and the piston part divides the hydraulic cavity into an inner cavity and an outer cavity. The inner cavity on each bending rod is interconnected through an inner hose, and the outer cavity of each bending rod is connected through an outer hose.

[0008] A further technical solution is that a head positioning roller assembly is provided on the upper side of the inclined plate, the head positioning roller assembly and the tail positioning assembly are spaced apart from each other, a rotating shaft is fixedly provided at the axis center of the inner support roller, the rotating shaft slides in the coordination slide groove, a second spring and a first spring are respectively provided on both sides of the rotating shaft, the outer ends of the second spring and the first spring respectively abut against the wall of the coordination slide groove, a preload adjustment block with adjustable length is provided in the wall of the coordination slide groove, a pressure sensor is fixedly provided at one end of the preload adjustment block protruding from the inner wall of the coordination slide groove, the pressure sensor and the outer end of the first spring abut against each other to detect the pressure applied by the rotating shaft to the first spring.

[0009] A further technical solution is that a ring tooth is rotatably set between the first plate and the second plate, the power device can drive the ring tooth to rotate, the second plate is close to the head positioning roller assembly, a rotating ring is rotatably set on one side of the first plate, the end of the outer support rod away from the outer support roller has a smooth inclined surface, a radial groove is set on the first plate, and a spring is set in the radial groove, the outer support rod slides in the radial groove, and the spring provides a pulling force for the outer support rod to slide away from the center, a wedge block matching the smooth inclined surface is fixed on the inner side of the rotating ring, a connecting plate is fixed on the inner side of the rotating ring, and a first telescopic rod is installed on the connecting plate, and the end of the first telescopic rod is extended to abut the side of the ring tooth in a frictional manner.

[0010] A further technical solution is that a through groove is provided at the end of the outer support rod, a central shaft is arranged in the through groove, an outer support roller is provided at the end of the central shaft, the end of the through groove close to the outer support roller is a straight tooth groove, and the end of the through groove away from the outer support roller is a switching groove, a straight gear is fixedly provided at the end of the central shaft close to the outer support roller, and a piston ring is fixedly provided at the end of the central shaft away from the outer support roller, the piston ring slides freely in the switching groove, and the central shaft moves back and forth in the through groove to make the straight gear engage or disengage with the straight tooth groove to limit or unlock the rotation of the outer support roller, a fourth spring is also provided in the switching groove, and the fourth spring pushes the piston ring to move toward one side of the outer support roller, and a boost pipe is also provided in the outer support rod, and the boost pipe is connected to the end of the switching groove away from the fourth spring.

[0011] In a further technical solution, the outer cavity and the boost pipe are connected via a pipe, and a second solenoid valve is provided in the pipe, and a first solenoid valve is provided at the port of the outer hose in the outer cavity; The device further includes a control unit, which controls the opening or closing of the first solenoid valve and the second solenoid valve through an electrical signal, and is electrically connected to the pressure sensor through a cable to receive the pressure value of the inner support roller at a corresponding angle. The control unit is configured as follows: When the inner support roller at the corresponding position is squeezed by the inner cylinder of the explosion-proof tank, so that the pressure on the inner support roller does not exceed the set value, the control unit controls the first solenoid valve to open and controls the second solenoid valve to close; When the inner support roller at the corresponding position is squeezed by the inner cylinder of the explosion-proof tank, causing the pressure on the inner support roller to exceed the set value, the control unit controls the second solenoid valve to open and controls the first solenoid valve to close.

[0012] A further technical solution is that the power device includes a power motor fixed on one side of the first plate, a first pulley is fixedly provided at the end of the power motor, a second pulley is rotatably provided on the first plate, the second pulley is connected to the first pulley by a belt, the second pulley axially penetrates the first plate and a transmission gear is fixedly provided at the end, and the transmission gear is engaged with the ring gear.

[0013] A further technical solution is that a plurality of positioning blocks are arranged at circumferential intervals on the first plate, the positioning blocks have an arc-shaped groove, the rotating ring slides in the arc-shaped groove, and the positioning blocks are also provided with a through thread groove, a threaded rod is arranged in the thread groove, one end of the threaded rod can abut the rotating ring to limit the rotation of the rotating ring, and the other end of the threaded rod extends out of the thread groove and a hand-held rod is fixed thereon.

[0014] A further technical solution is that a vertical plate is fixedly arranged on the upper side of the main base, the welding part includes a transverse guide rail extending laterally fixed on the top of the vertical plate, a guide rail motor is slidably fitted on the transverse guide rail, a longitudinal telescopic motor is vertically fixed on the guide rail motor, and a welding gun is fixedly arranged at the lower end of the longitudinal telescopic motor.

[0015] A further technical solution is that the head positioning roller assembly includes a first bracket fixedly arranged at one end of the inclined plate, the first bracket and the tail bracket are spaced apart, the first bracket is perpendicular to the upper surface of the inclined plate, a hydraulic telescopic rod is fixedly arranged on the side of the first bracket, and a sliding sleeve is fixedly arranged on the axial end of the hydraulic telescopic rod, a receiving roller is sleeved inside the sliding sleeve, and the middle part of the receiving roller radially expands to form an anti-slip sleeve that supports the side of the outer cylinder of the explosion-proof tank, and a longitudinally extending slide groove is also provided on the tail bracket, and one end of the receiving roller extends into the slide groove and can slide longitudinally in the slide groove.

[0016] A further technical solution is that a third telescopic rod is fixedly provided on the rotating open ring, and an axial hole is provided on the rotating open ring at the position of the third telescopic rod, and the shaft of the third telescopic rod can be extended and pass through the axial hole and frictionally abut against the side surface of the ring gear; A further technical solution is that a rotating shaft is provided at the hinge of the bending rod, and a second telescopic rod is installed on the bending rod. The shaft of the second telescopic rod is fixedly connected to the rotating shaft, and the rotating shaft is rotatably connected to the rotating open ring, and the end of the rotating shaft penetrates the rotating open ring and the second plate and a transmission tooth is fixedly provided. The second telescopic rod controls the engagement or disengagement of the transmission tooth with the ring tooth.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention sets up a hydraulic linkage compensation system. When the inner support roller contacts the inner cylinder, the piston part squeezes the hydraulic cavity to generate a pressure signal. When the pressure does not exceed the standard, the first solenoid valve is opened to allow the hydraulic oil to flow to the cavity that does not contact the roller, driving the radial expansion of the inner support roller at the corresponding position to compensate for the deformation caused by the thin-walled inner cylinder, achieving a dynamic balance of the three-point support force, actively compensating for the irregular deformation of the inner cylinder, and reducing the coaxiality deviation.

[0018] The present invention establishes a quantitative decision-making mechanism for pressure deviation, monitors the pressure values ​​of three support points corresponding to different positions in real time, and immediately triggers the second solenoid valve to switch the oil circuit when the threshold is exceeded, quickly switches to the downward position, shortens the measurement time, automatically scans the positioning points around the entire circle and records the pressure deviation data. The control unit selects the position corresponding to the minimum pressure deviation of the three-point support, thereby providing a stable supporting force for the support of the inner cylinder, further reduces the coaxiality deviation, improves the positioning accuracy of the outer cylinder and the inner cylinder, and well controls the weld gap between the two to make the weld gap more uniform, eliminates welding defects caused by insufficient coaxiality, and improves the impact strength of the explosion-proof tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of an explosion-proof tank; Figure 2 This is a schematic diagram of the interior of the explosion-proof tank; Figure 3 It is a schematic diagram of the overall structure of the present invention; Figure 4 It is a structural diagram of the tail bracket and the main base in the present invention; Figure 5 It is a structural schematic diagram of the back side of the tail bracket in the present invention; Figure 6 This is a schematic structural diagram of the front side of the tail bracket of the present invention; Figure 7 It is a structural schematic diagram of the inner support roller and the inner cylinder outline in the present invention; Figure 8 It is a schematic diagram of the structure inside the bending rod of the present invention; Figure 9 It is a schematic structural diagram of the outer hose and the inner hose in the present invention; Figure 10 It is a structural diagram of the cooperation between the outer support rod and the outer support roller in the present invention.

[0020] Description of reference numerals: Leg 10, upper cover 11, bracket 12, bracket 2 13, cylinder 14, outer cylinder 16, inner cylinder 17, isolation chamber 18, first weld 20, second weld 21, second telescopic rod 22, third telescopic rod 23, main base 30, vertical plate 31, transverse guide rail 32, guide rail motor 33, longitudinal telescopic motor 34, welding gun 35, small base 36, tilting plate 37, connecting frame 38, first bracket 39, tail bracket 40, power motor 41, rotating motor 42, rotating open ring 44, bending rod 46, inner support roller 47, synchronous connecting rod 48, ring gear 53, first plate 54, second plate 55, transmission gear 56, gear groove 57, limit ring groove 58 , second pulley 59, belt 60, outer support rod 61, outer support roller 62, coordination slide 63, inner cavity 64, first solenoid valve 65, second solenoid valve 66, pressure sensor 69, first spring 70, second spring 71, preload adjustment block 72, piston part 74, rotating shaft 76, outer hose 77, inner hose 78, outer cavity 79, spur gear 80, third spring 81, spur tooth groove 82, middle shaft 83, piston ring 84, boost pipe 85, fourth spring 86, switching groove 87, rotating ring 90, wedge block 91, connecting plate 93, first telescopic rod 94, positioning block 95, hand-held rod 96, hydraulic telescopic rod 97, sliding sleeve 98, receiving roller 99. DETAILED DESCRIPTION

[0021] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0022] In the description of the present invention, unless otherwise specified, "plurality" means two or more; terms such as "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, terms such as "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0024] It should be noted that this application is particularly suitable for double-layer explosion-proof tanks, such as Figure 1-Figure 2 It includes a cylinder 14, support legs 10 and an upper cover 11. A bracket 12 is fixedly arranged at the upper opening of the cylinder 14. A bracket 2 13 is hingedly arranged on the upper end of the bracket 12. The bracket 2 13 swings relative to the bracket 12 to fasten the upper cover 11. The cylinder 14 includes an outer cylinder 16 and an inner cylinder 17, wherein the inner cylinder 17 is arranged inside the outer cylinder 16, and an isolation chamber 18 is formed between the outer cylinder 16 and the inner cylinder 17, and the inner cylinder 17 has a pressure relief groove, and the isolation chamber 18 is filled with fireproof material.

[0025] When processing the explosion-proof tank, it is necessary to weld the inner tube 17 and the isolation chamber 18 together. Figure 2 The welding positions are divided into a first weld 20 and a second weld 21 .

[0026] like Figure 3-10As shown, an integrated processing equipment for pressure relief and explosion-proof tanks includes a main base 30, a vertical plate 31 is provided on the main base 30, a welding portion that can slide laterally is provided on the upper side of the vertical plate 31, and the welding head of the welding portion is vertically downward. A small base 36 is also provided on the upper side of the main base 30, and a damping hinged inclined plate 37 is provided on the small base 36. A tail positioning assembly and a head positioning roller assembly are relatively provided on the upper side of the inclined plate 37. The tail positioning assembly includes a tail bracket 40 fixed vertically upward to the tail end of the inclined plate 37, and the tail bracket 40 includes a first plate 54 and a second plate 55 that are superimposed on each other, and a circular through groove is provided in the middle of the first plate 54 and the second plate 55. The first plate 54 is provided with an outer support rod 61 that can be radially extended and retracted, and an outer support roller 62 that can switch between a rotating or fixed state is provided near the end of the outer support rod 61 near the center. A rotating open ring 44 is rotatably provided on the second plate 55. A power device for driving the rotating open ring 44 to rotate is also provided on one side of 54. At least three bending rods 46 are distributed on the circumference of the rotating open ring 44 at intervals. The middle part of each bending rod 46 is hinged to the side of the rotating open ring 44, and the end of the bending rod 46 close to the center is provided with an inner support roller 47 that cannot rotate. The ends of the adjacent bending rods 46 away from the center are hinged by a synchronous connecting rod 48. The bending rod 46 is provided with a coordination slide 63 along its own length direction. The inner support roller 47 can slide freely in the coordination slide 63. A hydraulic chamber is provided in the part of the bending rod 46 away from the center, and a piston part 74 is slidably provided in the hydraulic chamber. The inner support roller 47 is fixedly connected to the piston part 74 by a connecting rod. The piston part 74 divides the hydraulic chamber into an inner chamber 64 and an outer chamber 79. The inner chamber 64 on each of the bending rods 46 is interconnected through an inner hose 78, and the outer chamber 79 of each of the bending rods 46 is connected through an outer hose 77.

[0027] Specifically, a small base 36 is fixedly provided on the upper side of the main base 30, and a rotating motor 42 is fixedly installed on the small base 36. A connecting frame 38 is fixedly provided on the lower side of the inclined plate 37. The connecting frame 38 and the small base 36 are hinged through a hinge shaft, and the shaft of the rotating motor 42 is fixedly connected to the hinge shaft.

[0028] Preferably, a rotating shaft 76 is fixedly provided at the axis center of the inner supporting roller 47, and the rotating shaft 76 slides in the coordinating slide groove 63. A second spring 71 and a first spring 70 are respectively provided on both sides of the rotating shaft 76, and the outer ends of the second spring 71 and the first spring 70 respectively abut against the wall of the coordinating slide groove 63. A preload adjustment block 72 capable of adjusting the length is provided in the wall of the coordinating slide groove 63, and a pressure sensor 69 is fixedly provided at one end of the preload adjustment block 72 protruding from the inner wall of the coordinating slide groove 63. The pressure sensor 69 and the outer end of the first spring 70 abut against each other to detect the pressure applied to the first spring 70 by the rotating shaft 76.

[0029] Specifically, the outer side of the preload adjustment block 72 is a threaded portion, and the inner wall of the coordination groove 63 is a threaded hole. The threaded portion rotates in the threaded hole to adjust the elongation of the preload adjustment block 72. Manually rotating the preload adjustment block 72 can adjust the preload force applied to the first spring 70, thereby controlling the initial pressure of the inner support roller 47 under pressure to cause radial movement.

[0030] Preferably, a ring tooth 53 is rotatably provided between the first plate 54 and the second plate 55, and the power device can drive the ring tooth 53 to rotate, and the second plate 55 is close to the head positioning roller assembly. A rotating ring 90 is rotatably provided on one side of the first plate 54, and the end of the outer support rod 61 away from the outer support roller 62 has a smooth inclined surface, and a radial groove is provided on the first plate 54, and a spring is provided in the radial groove, and the outer support rod 61 slides in the radial groove, and the spring provides a pulling force for the outer support rod 61 to slide away from the center, and a wedge block 91 that cooperates with the smooth inclined surface is fixedly provided on the inner side of the rotating ring 90, and a connecting plate 93 is fixedly provided on the inner side of the rotating ring 90, and a first telescopic rod 94 is installed on the connecting plate 93, and the end of the first telescopic rod 94 is extended to abut against the side of the ring tooth 53 in a frictional manner.

[0031] Preferably, a through groove is provided at the end of the outer support rod 61, a central shaft 83 is provided in the through groove, the end of the central shaft 83 is provided with the outer support roller 62, the end of the through groove close to the outer support roller 62 is a straight tooth groove 82, the end of the through groove away from the outer support roller 62 is a switching groove 87, the end of the central shaft 83 close to the outer support roller 62 is fixedly provided with a spur gear 80, the end of the central shaft 83 away from the outer support roller 62 is fixedly provided with a piston ring 84, the piston ring 8 The central shaft 83 freely slides in the switching groove 87, and the central shaft 83 reciprocates in the through groove to make the spur gear 80 engage with or disengage from the spur tooth groove 82, thereby restricting or unlocking the rotation of the outer support roller 62. A fourth spring 86 is further provided in the switching groove 87, and the fourth spring 86 pushes the piston ring 84 to move toward one side of the outer support roller 62. A boosting pipe 85 is further provided in the outer support rod 61, and the boosting pipe 85 is connected to the end of the switching groove 87 away from the fourth spring 86.

[0032] Preferably, the outer cavity 79 is connected to the boost pipe 85 through a pipeline, and a second solenoid valve 66 is provided in the pipeline. The first solenoid valve 65 is provided at the port of the outer hose 77 located in the outer cavity 79 .

[0033] The system further includes a control unit, which controls the opening or closing of the first solenoid valve 65 and the second solenoid valve 66 through electrical signals. The control unit is electrically connected to the pressure sensor 69 through a cable to receive the pressure value of the inner support roller 47 at a corresponding angle. The control unit is configured as follows: When the inner support roller 47 at the corresponding position is squeezed by the inner cylinder of the explosion-proof tank, so that the pressure on the inner support roller 47 does not exceed the set value, the control unit controls the first solenoid valve 65 to open and controls the second solenoid valve 66 to close; When the inner support roller 47 at the corresponding position is squeezed by the inner cylinder of the explosion-proof tank, causing the pressure on the inner support roller 47 to exceed the set value, the control unit controls the second solenoid valve 66 to open and controls the first solenoid valve 65 to close.

[0034] Preferably, the power device includes a power motor 41 fixed to one side of the first plate 54, a first pulley is fixedly provided at the end of the power motor 41, a second pulley 59 is rotatably provided on the first plate 54, the second pulley 59 is connected to the first pulley through a belt 60, the second pulley 59 axially penetrates the first plate 54 and a transmission gear 56 is fixedly provided at the end, and the transmission gear 56 is engaged with the ring gear 53.

[0035] Specifically, the second plate 55 is provided with a limiting ring groove 58 along a circumference of the ring gear 53 , and a gear groove 57 is formed inwardly on the outer side of the limiting ring groove 58 . The transmission gear 56 rotates in the gear groove 57 , and the ring gear 53 rotates in the limiting ring groove 58 .

[0036] Preferably, a plurality of positioning blocks 95 are provided at circumferential intervals on the first plate 54, and the positioning blocks 95 have an arc-shaped groove, and the rotating ring 90 slides in the arc-shaped groove, and the positioning blocks 95 are also provided with a through thread groove, and a threaded rod is provided in the thread groove, one end of the threaded rod can abut against the rotating ring 90 to limit the rotation of the rotating ring 90, and the other end of the threaded rod extends out of the thread groove and is fixed with a hand-held rod 96.

[0037] Preferably, the welding part includes a transverse guide rail 32 extending laterally fixed on the top of the vertical plate 31, and a guide rail motor 33 is slidably fitted on the transverse guide rail 32. A longitudinal telescopic motor 34 is vertically fixed on the guide rail motor 33, and a welding gun 35 is fixed at the lower end of the longitudinal telescopic motor 34.

[0038] Preferably, the head positioning roller assembly includes a first bracket 39 fixedly arranged at one end of the inclined plate 37, the first bracket 39 and the tail bracket 40 are spaced apart, the first bracket 39 is perpendicular to the upper surface of the inclined plate 37, a hydraulic telescopic rod 97 is fixedly arranged on the side of the first bracket 39, and a sliding sleeve 98 is fixedly arranged on the axial end of the hydraulic telescopic rod 97, and a receiving roller 99 is sleeved in the sliding sleeve 98, and the middle part of the receiving roller 99 is radially expanded to form an anti-slip sleeve that supports the side of the outer cylinder of the explosion-proof tank, and a longitudinally extending slide groove is also provided on the tail bracket 40, and one end of the receiving roller 99 extends into the slide groove and can slide longitudinally in the slide groove.

[0039] Preferably, the third telescopic rod 23 is fixedly mounted on the rotating open ring 44 , and an axial hole is provided in the rotating open ring 44 at the position of the third telescopic rod 23 , and the axis of the third telescopic rod 23 can be extended and pass through the axial hole and frictionally abut against the side of the ring gear 53 .

[0040] Preferably, a rotating shaft is provided at the hinge of the bending rod 46, and a second telescopic rod 22 is installed on the bending rod 46. The axis of the second telescopic rod 22 is fixedly connected to the rotating shaft, and the rotating shaft is rotatably connected to the rotating open ring 44, and the end of the rotating shaft penetrates the rotating open ring 44 and the second plate 55 and is fixed with a transmission tooth, and the second telescopic rod 22 controls the engagement or disengagement of the transmission tooth with the ring tooth 53.

[0041] The working process of this device: The operator needs to place the assembled inner and outer cylinders 17 and 16 on the upper side of the inclined plate 37 so that the tail of the explosion-proof can fits into the tail bracket 40 and the head of the explosion-proof can is received by the receiving rollers 99. Specifically, the outer and inner cylinders 16 and 17 of the explosion-proof can are positioned separately, with the inner cylinder 17 sleeved on the outside of the three inner support rollers 47 and the outer cylinder 16 clamped on the inside of the three outer support rollers 62. The control unit first controls the extension of the first telescopic rod 94 so that the axial end of the first telescopic rod 94 abuts the side of the ring gear 53. The power motor 41 is activated, driving the transmission gear 56 and the ring gear 53 to rotate via a belt drive. Under the action of friction, the ring gear 53 drives the first telescopic rod 94, the connecting plate 93, and the rotating ring 90 to rotate synchronously. The rotating ring 90 drives the wedge block 91 to rotate, and the three outer support rods 61 are driven to move radially inward synchronously through the inclined surface engagement. The outer support rods 61 drive the outer support rollers 62 to abut the outer wall of the outer cylinder 16, thereby achieving a preliminary positioning effect.

[0042] Since the inner cylinder 17 has a thin wall and is easily deformed, it is difficult to control the product quality during the production of a large diameter cylinder. Some inner cylinders 17 may have large circular runout. In order to overcome the problem of poor coaxiality between the inner cylinder 17 and the outer cylinder 16, the following corrections will be made after the initial positioning: In the default state, under the action of the third spring 81, the spur gear 80 is disengaged from the spur tooth groove 82. At this time, the central axis 83 and the outer support roller 62 can rotate freely. The control unit sends a start signal to the second telescopic rod 22. The second telescopic rod 22 drives the gear at the end to engage with the ring gear 53. The power motor 41 is started and drives the ring gear 53 to rotate through the belt drive and the gear drive. The ring gear 53 drives the gear, the second telescopic rod 22 and the bending rod 46 to rotate. The multiple bending rods 46 are connected by the synchronous connecting rod 48 and swing synchronously, so that the inner support roller 47 at the inner end of the bending rod 46 expands outward at the same time. And abut against the inner wall of the inner cylinder 17, playing the role of internal support. When the three inner support rollers 47 abut against the inner wall of the inner cylinder 17, due to the different deformation amounts of the inner cylinder 17 itself, the following states will appear: State 1: The deviation value of the support force generated between the three inner support rollers 47 and the inner cylinder 17 is within the set value. State 2: Or the deviation of the three support forces is too large and exceeds the set value. When state 1 appears, it is determined that the three support points basically meet the requirements and need to be further screened to select a group with the smallest deviation. When state 2 appears, this position is immediately discarded and screening is carried out from other angles. The specific steps are as follows: The three outer support rods 61 are extended, and the outer support rollers 62 are in contact with the outer wall of the outer cylinder 16. The second telescopic rod 22 is extended, and the power motor 41 drives the ring gear 53 and the three bending rods 46 to rotate synchronously, so that the three inner support rollers 47 are close to the inner wall of the inner cylinder 17. Figure 6As shown, when one inner support roller 47 abuts against the inner wall of the inner cylinder 17, the other inner support rollers 47 have not yet made contact. As the bending rod 46 rotates further, the inner support roller 47 that makes contact first will drive the rotating shaft 76 to move toward the inner cavity 64, as shown in FIG. Figure 8 As shown, the rotating shaft 76 overcomes the thrust of the first spring 70 and drives the piston portion 74 to move. The piston portion 74 squeezes the liquid inside the inner cavity 64. The pressure sensor 69 constantly detects the pressure from the first spring 70. At the beginning, the pressure value does not exceed the set value. The first solenoid valve 65 is opened and the second solenoid valve 66 is closed. The liquid in the inner cavity 64 will flow into the inner cavity 64 of the other bending rods 46 through the inner hose 78. The increase in the liquid in the inner cavity 64 of the other bending rods 46 will push the piston portion 74 to move and drive the corresponding inner support roller 47 to move in the opposite direction. Figure 9 When the inner support roller 47 at A is squeezed, it will move toward the center relative to the bending rod 46. Under the action of hydraulic compensation, the inner support rollers 47 at the other two locations B and C will move away from the center, establishing a hydraulic linkage compensation system to compensate for the deformation of the inner wall of the inner cylinder 17, so that all three contact points can be stably supported.

[0043] When the pressure value detected by the first spring 70 exceeds the set value, it is determined that the deviation of the three support points at this position is too large, which is not conducive to stable support and needs to be replaced with a better position. The first solenoid valve 65 is closed and the second solenoid valve 66 is opened to stop the above-mentioned compensation action. As the bending rod 46 further swings, the pressure between the inner support roller 47 and the inner cylinder 17 is greater, and the inner support roller 47 will drive the piston part 74 to move a greater distance. The excess liquid in the hydraulic chamber will enter the boost pipe 85 through the second solenoid valve 66 and the pipeline, as shown in the support leg 10. The excess liquid pushes the piston ring 84 to move left in the switching groove 87 and compresses the fourth spring 86. The central shaft 83 drives the spur gear 80 to enter the spur tooth groove 82. At this time, the central shaft 83 cannot rotate freely, and the rotation of the outer support roller 62 is restricted. Since the outer support roller 62 is against the outer wall of the outer cylinder 16, the outer cylinder 16 and the inner cylinder 17 cannot rotate, so as to achieve the effect of fixing the angle of the outer cylinder 16 and the inner cylinder 17. At this time, the power motor 41 rotates in the opposite direction, driving the bending rod 4 6 rotates in the opposite direction to move the inner support roller 47 away from the inner wall of the inner cylinder 17. The third telescopic rod 23 starts to extend so that the rotating open ring 44 and the ring gear 53 can rotate synchronously. The second telescopic rod 22 retracts, and the control gear disengages the ring gear 53. Driven by the ring gear 53, the rotating open ring 44 and the three inner support rollers 47 thereon are shifted to the next angle, forming a new three-point positioning. The third telescopic rod 23 retracts, and the second telescopic rod 22 reextends. The power motor 41 is restarted and the above process is repeated. The new three-point positioning is tested again to see if it is within the set value, and the deviation of the three-point positioning is recorded. Specifically, the maximum value minus the minimum value can be used for calculation. Repeating this measurement for one week can record multiple sets of data for one week. A pressure deviation quantification decision mechanism is established. The control unit automatically evaluates and selects the three-point positioning position corresponding to the minimum deviation value, and controls the rotating open ring 44 to rotate to the corresponding angle. The three bent rods 46 swing and expand again, and the inner wall of the inner cylinder 17 is stably supported with the three-point positioning pressure with the minimum deviation.

[0044] After the above-mentioned rapid measurement and search for the most uniform pressure internal support action, the power motor 41 starts and drives the rotating open ring 44 and the three internal support rollers 47 to rotate, and the other end of the outer cylinder 16 is lifted by the receiving roller 99, and the hydraulic telescopic rod 97 is extended and retracted to adjust the height of the receiving roller 99, the guide rail motor 33 starts and adjusts the lateral position of the welding gun 35, and the longitudinal telescopic motor 34 starts to adjust the longitudinal position of the welding gun 35 so that the welding gun 35 extends into the interior of the outer cylinder 16 so that the lower end of the welding gun 35 is aligned with the second weld 21 or the first weld 20, thereby achieving the purpose of uniform seam, improving welding quality, and thereby improving the safety of the explosion-proof tank.

[0045] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.

Claims

1. An integrated processing equipment for pressure relief explosion-proof tanks, characterized by: The invention comprises a general base, a welding portion is provided on the general base, an inclined plate is further provided on the upper side of the general base, a tail positioning assembly is relatively provided on the upper side of the inclined plate, the tail positioning assembly comprises a tail bracket fixed vertically upward to the tail end of the inclined plate, the tail bracket comprises a first plate and a second plate superimposed on each other, a circular through groove is provided in the middle of the first plate and the second plate, the first plate is provided with a radially retractable outer support rod, the end of the outer support rod close to the center is provided with an outer support roller that can switch between a rotating or fixed state, a rotating open ring is rotatably provided on the second plate, a power device for driving the rotating open ring to rotate is also provided on one side of the first plate, and at least one of the rotating open rings is distributed on the circumference of the rotating open ring at intervals. Three bending rods, the middle part of each bending rod is hinged to the side of the rotating open ring, and the end of the bending rod close to the center is provided with an inner support roller that cannot rotate, and the ends of the adjacent bending rods away from the center are hinged by a synchronous connecting rod, and the bending rod is provided with a coordination slide groove along its own length direction, and the inner support roller can slide freely in the coordination slide groove, and the part of the bending rod away from the center is provided with a hydraulic cavity, and a piston part is slidingly arranged in the hydraulic cavity, and the inner support roller is fixedly connected to the piston part through a connecting rod, and the piston part divides the hydraulic cavity into an inner cavity and an outer cavity, and the inner cavity on each of the bending rods is interconnected through an inner hose, and the outer cavity of each of the bending rods is connected through an outer hose.

2. The integrated processing equipment for pressure relief and explosion-proof tanks according to claim 1, characterized in that: A head positioning roller assembly is provided on the upper side of the inclined plate, and the head positioning roller assembly and the tail positioning assembly are spaced apart from each other. A rotating shaft is fixedly provided at the axis center of the inner supporting roller, and the rotating shaft slides in the coordination slide groove. A second spring and a first spring are respectively provided on both sides of the rotating shaft, and the outer ends of the second spring and the first spring respectively abut against the wall of the coordination slide groove, and a preload adjustment block with adjustable length is provided in the wall of the coordination slide groove. A pressure sensor is fixedly provided at one end of the preload adjustment block protruding from the inner wall of the coordination slide groove, and the pressure sensor and the outer end of the first spring abut against each other to detect the pressure applied by the rotating shaft to the first spring.

3. The integrated processing equipment for pressure relief and explosion-proof tanks according to claim 2, characterized in that: A ring tooth is rotatably set between the first plate and the second plate, and the power device can drive the ring tooth to rotate. The second plate is close to the head positioning roller assembly, and a rotating ring is rotatably set on one side of the first plate. The end of the outer support rod away from the outer support roller has a smooth inclined surface, a radial groove is set on the first plate, and a spring is set in the radial groove, the outer support rod slides in the radial groove, and the spring provides a pulling force for the outer support rod to slide away from the center, and a wedge block that cooperates with the smooth inclined surface is fixed on the inner side of the rotating ring, and a connecting plate is fixed on the inner side of the rotating ring, and a first telescopic rod is installed on the connecting plate, and the end of the first telescopic rod is extended to abut the side of the ring tooth in a frictional manner.

4. The integrated processing equipment for pressure relief and explosion-proof tanks according to claim 2, characterized in that: The end portion of the outer support rod is provided with a through groove, a central shaft is arranged in the through groove, the end portion of the central shaft is provided with the outer support roller, the end of the through groove close to the outer support roller is a straight tooth groove, and the end of the through groove away from the outer support roller is a switching groove, a straight gear is fixedly provided at the end of the central shaft close to the outer support roller, and a piston ring is fixedly provided at the end of the central shaft away from the outer support roller, and the piston ring slides freely in the switching groove, and the central shaft moves back and forth in the through groove to make the straight gear engage or disengage with the straight tooth groove to limit or unlock the rotation of the outer support roller, and a fourth spring is also provided in the switching groove, and the fourth spring pushes the piston ring to move toward one side of the outer support roller, and a boost pipe is also provided in the outer support rod, and the boost pipe is connected to the end of the switching groove away from the fourth spring.

5. The integrated processing equipment for pressure relief and explosion-proof tanks according to claim 4, characterized in that: The outer cavity is connected to the boost pipe through a pipeline, and a second solenoid valve is provided in the pipeline. A first solenoid valve is provided at the port of the outer hose located in the outer cavity. The device further includes a control unit, which controls the opening or closing of the first solenoid valve and the second solenoid valve through an electrical signal, and is electrically connected to the pressure sensor through a cable to receive the pressure value of the inner support roller at a corresponding angle, wherein the control unit is configured as follows: When the inner support roller at the corresponding position is squeezed by the inner cylinder of the explosion-proof tank, so that the pressure on the inner support roller does not exceed the set value, the control unit controls the first solenoid valve to open and controls the second solenoid valve to close; When the inner support roller at the corresponding position is squeezed by the inner cylinder of the explosion-proof tank, causing the pressure on the inner support roller to exceed a set value, the control unit controls the second solenoid valve to open and controls the first solenoid valve to close.

6. The integrated processing equipment for pressure relief and explosion-proof tanks according to claim 3, characterized in that: The power device includes a power motor fixed to one side of the first plate, a first pulley is fixedly provided at the end of the power motor, a second pulley is rotatably provided on the first plate, the second pulley is connected to the first pulley through a belt, the second pulley axially penetrates the first plate and a transmission gear is fixedly provided at the end, and the transmission gear is engaged with the ring gear.

7. The integrated processing equipment for pressure relief and explosion-proof tanks according to claim 3, characterized in that: A plurality of positioning blocks are arranged at intervals on the circumference of the first plate, and the positioning blocks have an arc-shaped sliding groove, and the rotating ring slides in the arc-shaped sliding groove. The positioning blocks are also provided with a penetrating threaded groove, and a threaded rod is arranged in the threaded groove. One end of the threaded rod can abut against the rotating ring to limit the rotation of the rotating ring, and the other end of the threaded rod extends out of the threaded groove and is fixed with a hand-held rod.

8. The integrated processing equipment for pressure relief and explosion-proof tanks according to claim 1, characterized in that: A vertical plate is fixedly arranged on the upper side of the main base, and the welding part includes a transverse guide rail fixed on the top of the vertical plate and extending laterally. A guide rail motor is slidably fitted on the transverse guide rail, and a longitudinal telescopic motor is vertically fixed on the guide rail motor. A welding gun is fixedly arranged at the lower end of the longitudinal telescopic motor.

9. The integrated processing equipment for pressure relief and explosion-proof tanks according to claim 2, characterized in that: The head positioning roller assembly includes a first bracket fixedly arranged at one end of the inclined plate, the first bracket and the tail bracket are spaced apart, the first bracket is perpendicular to the upper surface of the inclined plate, a hydraulic telescopic rod is fixedly arranged on the side of the first bracket, a sliding sleeve is fixedly arranged on the axial end of the hydraulic telescopic rod, a receiving roller is sleeved in the sliding sleeve, the middle part of the receiving roller radially expands to form an anti-slip sleeve that supports the side of the outer cylinder of the explosion-proof tank, and a longitudinally extending slide groove is also provided on the tail bracket, one end of the receiving roller extends into the slide groove and can slide longitudinally in the slide groove.

10. The integrated processing equipment for pressure relief and explosion-proof tanks according to claim 6, characterized in that: A third telescopic rod is fixedly provided on the rotating open ring, and an axial hole is provided in the rotating open ring at the position of the third telescopic rod. The shaft of the third telescopic rod can be extended and pass through the axial hole and frictionally abut against the side surface of the ring gear; And / or, a rotating shaft is provided at the hinge of the bending rod, a second telescopic rod is installed on the bending rod, the shaft of the second telescopic rod is fixedly connected to the rotating shaft, the rotating shaft is rotatably connected to the rotating open ring, and the end of the rotating shaft penetrates the rotating open ring and the second plate and a transmission tooth is fixedly provided, and the second telescopic rod controls the engagement or disengagement of the transmission tooth with the ring tooth.

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