CN113601116A - Production process for circular air valve body - Google Patents
Production process for circular air valve body Download PDFInfo
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- CN113601116A CN113601116A CN202110919000.1A CN202110919000A CN113601116A CN 113601116 A CN113601116 A CN 113601116A CN 202110919000 A CN202110919000 A CN 202110919000A CN 113601116 A CN113601116 A CN 113601116A
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- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings
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Abstract
The invention relates to a production process for a circular air valve body, which comprises the following steps: s1, pressing the galvanized sheet to form a thin sheet body; s2, when a longitudinal joint is welded, a welding groove passes through the welding line to another welding groove, so that a longitudinal joint integrated stably-welded hollow cylindrical blank is formed, and two ends of the hollow cylindrical blank and the roller body are cut and separated from the welding groove through a cutting head; s3, blanking the hollow cylindrical blank to a special rounding flanging device, wherein the rounding flanging device comprises a frame, a rounding fixing structure and a flanging driving structure; s5, enabling the cylinder body to rotate circumferentially in the hollow cylindrical blank to realize the complete circularity of the hollow cylindrical blank; s6, realizing outward flanging while rotating the hollow cylindrical blank in the circumference, and completing single-side flanging of the hollow cylindrical blank; and S7, flanging the other end of the hollow cylindrical blank to finally form the air valve body. The invention has the following advantages: the structural strength of the circular air valve body is guaranteed, the flanging edge is prevented from cracking, and the flanging quality is guaranteed.
Description
The technical field is as follows:
the invention relates to the field of air valve production, in particular to a production process for a circular air valve body.
Background art:
the air valve is an indispensable central air-conditioning end fitting in ventilation, air-conditioning regulation and air purification projects, is generally used in air-conditioning and ventilation system pipelines, is used for regulating the air quantity of branch pipes, and is also used for mixing and regulating fresh air and return air. Circular blast gate valve body is comparatively common valve body structure in the blast gate field, needs carry out the turn-ups at the tip of circular valve body and handles.
At present, when a circular air valve body is produced, in order to facilitate flanging, two side ends of a thin plate body are flanged firstly, and then are welded through longitudinal seams to form a circular valve body structure, the operation is favorable for flanging but not favorable for welding, the welding longitudinal seams are U-shaped structures, firstly, clamping and fixing of the structures in the welding process is a difficult point, secondly, the welding strength is inconsistent, the structural strength and the connection stability of the whole air valve body are affected, the welding stress of the longitudinal seams at the flanging position is concentrated, the defects of welding openings and the like are easy to occur, and the stress at the transition position of the flanging and the valve body is more concentrated;
therefore, the production process of the circular air valve body is changed into the operation of firstly welding the longitudinal seam and then flanging, and the following defects still exist in the actual operation process: 1. when the horizontal longitudinal seam is welded, the head end and the tail end of the welding seam cannot be completely melted during welding, so that concave welding openings are easy to appear at the head end and the tail end, the stress of the head end and the tail end is concentrated, the edge position of the longitudinal seam of the flanging is cracked during later-stage flanging treatment, and the rejection rate of products is improved; 2. because the air valve body is formed by welding a thin plate body edge rolling to form a hollow cylindrical blank and then flanging, the whole roundness of the hollow cylindrical blank cannot be ensured, and the hollow cylindrical blank is easy to deform in the flanging process, so that the flanging transition part is bent and the like, and the flanging quality cannot be ensured.
The invention content is as follows:
the invention aims to overcome the defects and provide a production process for a circular air valve body, which ensures the structural strength of the circular air valve body, avoids the cracking of the edge of a flanging and ensures the quality of the flanging.
The purpose of the invention is realized by the following technical scheme: a production process for a circular air valve body comprises the following steps:
s1, pressing the galvanized sheet to form a rectangular sheet body, and polishing and deburring longitudinal seams of the sheet body to smooth the longitudinal seams of the sheet body;
s2, placing two ends of a longitudinal joint of a thin plate body on a roller body in an aligned mode, arranging a welding leading groove at the head end and the tail end of the longitudinal joint of the roller body, enabling one welding leading groove to pass through a welding line to the other welding leading groove when the longitudinal joint is welded, forming a longitudinal joint integrated stably-welded hollow cylindrical blank, and cutting and separating two ends of the hollow cylindrical blank and the roller body from the welding leading grooves through a cutting head;
s3, blanking the hollow cylindrical blank to a special rounding flanging device, wherein the rounding flanging device comprises a rack, a rounding fixing structure and a flanging driving structure, wherein the rounding fixing structure is arranged on the rack;
the whole-circle fixing structure comprises a rotatable cylinder body vertically arranged on the rack, a plurality of clamping plates distributed in an equal circumference mode are arranged outside the cylinder body, the lower end face of the cylinder body is a closed face, a first driving motor is arranged at the lower end of the cylinder body, the driving end of the first driving motor is connected with the center of the cylinder body, a rotary bearing is sleeved on the outer circumference of the cylinder body arranged in the rack, and the first driving motor drives the cylinder body to rotate and circle in the rack; the plurality of clamping plates realize coaxial outward diffusion or inward contraction through the driving group, the driving group is arranged in the cylinder body and comprises a second driving motor arranged in the cylinder body and a shaft rod connected with the driving end of the second driving motor, the upper end of the shaft rod is sleeved with a worm wheel, the outer part of the worm wheel is provided with a plurality of worms meshed with the worm wheel for transmission, and the worms are vertically arranged, and one end of the worm, which is far away from the worm wheel, is sleeved with a first conical gear, the center of the end surface of the clamping plate, which is close to the cylinder body, is vertically extended with a connecting shaft, the connecting shaft penetrates through the cylinder body and is arranged in the cylinder body, and the connecting shaft is internally threaded with a transmission rod, the extension direction of the transmission rod is consistent with that of the connecting shaft, one end of the transmission rod protrudes out of the connecting shaft and is connected with a second bevel gear, and the first bevel gears and the second bevel gears are in corresponding meshing transmission in sequence;
the flanging driving structure comprises a moving seat arranged on the rack, a flanging body is arranged on the moving seat and close to the barrel, the flanging body is of a tapered structure with a narrow top and a narrow bottom, the flanging body can be movably arranged on the rack along the direction vertical to the axial direction of the barrel, a columnar pressing block is further arranged on the rack, the end face of the columnar pressing block faces the barrel, and the columnar pressing block can be drawn close to or separated from the barrel through a first driving cylinder which is telescopic in the horizontal direction;
s4, sleeving the hollow cylindrical blank on the barrel, arranging the flanging body in the barrel, keeping a distance of more than 2cm between the flanging body and the inner wall of the barrel, starting a second driving motor to rotate so as to drive a worm wheel and a worm to be mutually driven, and driving the corresponding first bevel gear and the corresponding second bevel gear to be mutually meshed for transmission by the rotation of the worm so that the transmission rod performs thread transmission in the connecting shaft so as to drive the connecting shaft and the clamping plate to approach to the inner wall of the hollow cylindrical blank;
s5, after the clamping plate is contacted with the inner wall of the cylinder body, the cylinder body is clamped and fixed through external force, and at the moment, the first driving motor is started to enable the cylinder body to rotate circumferentially in the hollow cylindrical blank, so that the complete roundness of the hollow cylindrical blank is realized;
s6, canceling an external force action for clamping and fixing the cylinder, starting the first driving motor to enable the hollow cylindrical blank to rotate together with the cylinder, simultaneously starting the first driving cylinder to enable the end face of the columnar pressing block to be in contact with the outer wall of the hollow cylindrical blank close to the side end face, moving the flanging body outwards at a constant speed until the flanging body is completely arranged outside the hollow cylindrical blank, enabling the hollow cylindrical blank to realize outward flanging while rotating circumferentially, and completing single-side flanging of the hollow cylindrical blank;
and S7, turning the hollow cylindrical blank with the single-side flanging, flanging the other end of the hollow cylindrical blank, and finally forming the air valve body.
The invention is further improved in that: the upper end of the flanging body is flush with the position of the hollow cylindrical blank needing flanging.
The invention is further improved in that: the upper end of the rack is provided with a slide rail, the lower end of the movable seat is provided with a slide block, the slide block is sleeved on the slide rail, and the rack is also provided with a second driving cylinder for driving the movable seat to slide on the rack.
The invention is further improved in that: when the step S6 is flanging, the second driving cylinder contracts to enable the flanging body on the movable seat to move towards the direction away from the cylinder body.
The invention is further improved in that: the clamping plate is of an arc-shaped structure with an inward opening.
Compared with the prior art, the invention has the following advantages:
1. the circular air valve body adopts the production steps of firstly welding the longitudinal seam of the thin plate body and then rounding, and compared with the welding of the U-shaped longitudinal seam after flanging, the welding of the horizontal longitudinal seam of the thin plate body greatly reduces the welding difficulty and ensures the welding consistency and the welding quality; when a horizontal longitudinal seam is welded, one welding leading groove starts welding and stops welding from the longitudinal seam to the other welding leading groove, so that welding defects of the head end and the tail end are concentrated in the welding leading groove, the welding strength and the welding quality of the longitudinal seam are guaranteed, the structural strength of the head end and the tail end of the circular air valve body is further improved, powerful structural guarantee is provided for subsequent flanging operation, and the phenomenon that the flanging position is cracked due to the welding defects of the head end and the tail end of the longitudinal seam is avoided.
2. When carrying out the turn-ups to the hollow cylinder base, earlier carry out the full circle degree through full circle fixed knot structure to it and adjust, realize effective fixed stay through a plurality of clamp plates that stretch out and draw back with the axle center, pass through the rotation of a plurality of clamp plates at hollow cylinder base inner wall again to improve the full circle degree of hollow cylinder base, avoid turn-ups transition department to take place the phenomenon of buckling, guarantee the turn-ups quality.
Description of the drawings:
fig. 1 is a schematic view illustrating the connection between the thin plate body and the roller body in step S2.
Fig. 2 is a schematic structural diagram of the full circle flanging device in step S3 of the present invention.
Fig. 3 is a schematic structural diagram of a circular air valve body manufactured by the invention.
Reference numbers in the figures:
1-a thin plate body, 2-a longitudinal joint, 3-a roller body, 4-a welding groove, 5-a hollow cylindrical blank, 6-a rack, 7-a whole circle fixing structure, 8-a flanging driving structure and 9-an air valve body;
71-cylinder, 72-clamping plate, 73-closed surface, 74-first driving motor, 75-rotary bearing, 76-driving group, 761-second driving motor, 762-shaft lever, 763-worm gear, 764-worm, 765-first bevel gear, 766-connecting shaft, 767-driving lever, 768-second bevel gear;
81-moving seat, 82-flanging body, 83-columnar pressing block, 84-first driving cylinder, 85-sliding rail, 86-sliding block and 87-second driving cylinder.
The specific implementation mode is as follows:
for the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
The invention discloses a specific implementation mode of a production process for a circular air valve body, which comprises the following steps:
s1, pressing the galvanized sheet to form a rectangular sheet body 1, and polishing and deburring the longitudinal seam 2 of the sheet body 1 to smooth the longitudinal seam 2 of the sheet body 1;
s2, as shown in figure 1, two ends of a longitudinal joint 2 of a thin plate body 1 are aligned and placed on a roller body 3, a welding leading groove 4 is arranged at the head end and the tail end of the longitudinal joint 2 of the roller body 3, when the longitudinal joint 2 is welded, one welding leading groove 4 passes through a welding line 2 to the other welding leading groove 4, so that a hollow cylindrical blank 5 with the longitudinal joint 2 integrally and stably welded is formed, and two ends of the hollow cylindrical blank 5 and the roller body 3 are cut and separated from the welding leading groove 4 through a cutting head;
s3, blanking the hollow cylindrical blank 5 to a special full-circle flanging device, wherein the full-circle flanging device comprises a rack 6, a full-circle fixing structure 7 and a flanging driving structure 8, wherein the full-circle fixing structure 7 is arranged on the rack 6;
the round fixing structure 7 comprises a rotatable cylinder 71 vertically arranged on the frame 6, a plurality of clamping plates 72 distributed in an equal circumference are arranged outside the cylinder 71, the lower end surface of the cylinder 71 is a closed surface 73, the lower end of the cylinder 71 is provided with a first driving motor 74, the driving end of the first driving motor 74 is connected with the center of the cylinder 71, a rotary bearing 75 is sleeved on the outer circumference of the cylinder 71 arranged in the frame 6, and the first driving motor 74 drives the cylinder 71 to rotate and circle in the frame 6; the plurality of clamping plates 72 realize coaxial outward diffusion or inward contraction through the driving set 76, the driving set 76 is arranged in the cylinder 71, the driving set 76 comprises a second driving motor 761 arranged in the cylinder 71 and a shaft rod 762 connected with the driving end of the second driving motor 761, the upper end of the shaft rod 762 is sleeved with a worm wheel 763, the outside of the worm wheel 763 is provided with a plurality of worms 764 meshed with the worm wheel 763 for transmission, the worm 764 is vertically arranged, one end of the worm 764 far away from the worm wheel 763 is sleeved with a first bevel gear 765, the clamping plate 72 is vertically extended near the center of the end face of the cylinder 71 to form a connecting shaft 766, the connecting shaft 766 penetrates through the cylinder 71 and is arranged in the cylinder 71, the connecting shaft 766 is internally threaded with a driving rod 767, the extending direction of the driving rod 767 is consistent with the extending direction of the connecting shaft 766, one end of the driving rod 767 protrudes out of the connecting shaft 766 and is connected with a second bevel gear 768, the plurality of first bevel gears 765 and the plurality of second bevel gears 768 are in sequential corresponding meshing transmission;
the flanging driving structure 8 comprises a moving seat 81 arranged on the frame 6, a flanging body 82 is arranged on the moving seat 81 close to the cylinder 71, the flanging body 82 is of a tapered structure with a narrow upper part and a narrow lower part, the flanging body 82 can be movably arranged on the frame 6 along the direction vertical to the axial direction of the cylinder 71, a columnar pressing block 83 is further arranged on the frame 6, the end surface of the columnar pressing block 83 faces the cylinder 71, and the columnar pressing block 83 is drawn close to or separated from the cylinder 71 through a first driving cylinder 84 which is telescopic in the horizontal direction;
s4, sleeving the hollow cylindrical blank 5 on the cylinder body 71, arranging the flanging body 82 in the cylinder body 71, keeping the distance between the flanging body 82 and the inner wall of the cylinder body 71 to be more than 2cm, starting the second driving motor 761 to rotate so as to drive the worm wheel 763 and the worm 764 to transmit with each other, driving the corresponding first bevel gear 765 and the corresponding second bevel gear 768 to perform meshing transmission by the rotation of the worm 764, and driving the connecting shaft 766 and the clamping plate 72 to approach to the inner wall of the hollow cylindrical blank 5 by the transmission rod 767 performing thread transmission in the connecting shaft 766;
s5, after the clamping plate 72 is in contact with the inner wall of the cylinder 71, the cylinder 71 is clamped and fixed through external force, and at the moment, the first driving motor 74 is started to enable the cylinder 71 to rotate circumferentially in the hollow cylindrical blank 5, so that the complete roundness of the hollow cylindrical blank 5 is realized;
s6, canceling the external force action for clamping and fixing the cylinder 71, starting the first driving motor 74 to enable the hollow cylindrical blank 5 to rotate together with the cylinder 71, simultaneously starting the first driving cylinder 84 to enable the end face of the columnar pressing block 83 to be in contact with the outer wall of the hollow cylindrical blank 5 close to the side end face, enabling the flanging body 82 to move outwards at a constant speed until the flanging body 82 is completely arranged outside the hollow cylindrical blank 5, enabling the hollow cylindrical blank 5 to realize outward flanging while rotating circumferentially, and completing single-side flanging of the hollow cylindrical blank 5;
and S7, turning the hollow cylindrical blank 5 with the single-side flanging, flanging the other end of the hollow cylindrical blank 5, and finally forming the air valve body 9 as shown in figure 3.
The circular air valve body adopts the production steps of firstly welding the longitudinal seam of the thin plate body 1 and then rounding, and compared with the welding of the U-shaped longitudinal seam after flanging, the welding of the horizontal longitudinal seam 2 of the thin plate body 1 greatly reduces the welding difficulty and ensures the welding consistency and the welding quality; when welding horizontal form longitudinal joint 2, weld to another leading weld groove 4 through the longitudinal joint by leading weld groove 4 and terminate the welding, consequently the welding defect of head and tail end concentrates on leading weld groove 4 in, guarantees the welding strength and the welding quality of longitudinal joint 2, and then improves the structural strength of circular blast gate valve body head and tail end, provides powerful structural guarantee for subsequent turn-ups operation, avoids making turn-ups department fracture because of the welding defect of longitudinal joint head and tail end.
In this application, when carrying out the turn-ups to hollow cylinder base 5, earlier carry out the full circle degree through full circle fixed knot structure 7 to it and adjust, realize effective fixed stay through a plurality of clamp plates 72 that stretch out and draw back with the axle center, pass through the rotation of a plurality of clamp plates 72 at hollow cylinder base 5 inner wall again to improve hollow cylinder base 5's full circle degree, avoid turn-ups transition department to take place the phenomenon of buckling, guarantee the turn-ups quality.
In this application, realize with axle center outdiffusion or inward contraction with a plurality of clamp plates 72 through drive group 76 to guarantee the balance nature of clamp plate 72 to hollow cylinder base 5 clamping force, press from both sides hollow cylinder base 5 through the exogenic action and press from both sides fixedly, drive group 76 starts the back and rotates at hollow cylinder base 5 inner circumference, utilizes the turning force of a plurality of clamp plates 72 with the axle center to carry out the whole circle to hollow cylinder base 5, provides the basis for the turn-ups work of follow.
Further, the upper end of the flanging body 82 is flush with the position of the hollow cylindrical blank 5 to be flanged.
Further, the upper end of the frame 6 is provided with a slide rail 85, the lower end of the movable base 81 is provided with a slide block 86, the slide block 86 is sleeved on the slide rail 85, and the frame 6 is further provided with a second driving cylinder 87 for driving the movable base 81 to slide on the frame 6.
Further, when the flange is turned up in step S6, the second driving cylinder 87 contracts to move the flange 82 on the moving seat 81 in a direction away from the cylinder 71.
This application is when carrying out the turn-ups, the turn-ups body 82 is the coniform structure of money under the narrow-up, when the turn-ups body 82 progressively by in hollow cylinder base 5 to hollow cylinder base 5 when removing outward, hollow cylinder base 5 receives the circumference turning force and receives the axial tensile force of turn-ups body 82 simultaneously, thereby realize the turn-ups, so design turn-ups body 82 for coniform structure, it slowly increases progressively to guarantee the turn-ups angle, the turn-ups process slowly forms, if the turn-ups body 82 of cylindric structure is adopted, turn-ups initial position easy atress is concentrated and warp great then, improve the product disability rate.
Further, the clamping plate 72 has an arc-shaped structure with an inward opening.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A production process for a circular air valve body is characterized by comprising the following steps:
s1, pressing the galvanized sheet to form a rectangular sheet body, and polishing and deburring longitudinal seams of the sheet body to smooth the longitudinal seams of the sheet body;
s2, placing two ends of a longitudinal joint of a thin plate body on a roller body in an aligned mode, arranging a welding leading groove at the head end and the tail end of the longitudinal joint of the roller body, enabling one welding leading groove to pass through a welding line to the other welding leading groove when the longitudinal joint is welded, forming a longitudinal joint integrated stably-welded hollow cylindrical blank, and cutting and separating two ends of the hollow cylindrical blank and the roller body from the welding leading grooves through a cutting head;
s3, blanking the hollow cylindrical blank to a specially-made full-circle flanging device, wherein the full-circle flanging device comprises a rack, a full-circle fixing structure and a flanging driving structure, wherein the full-circle fixing structure and the flanging driving structure are arranged on the rack;
the whole-circle fixing structure comprises a rotatable cylinder body vertically arranged on the rack, a plurality of clamping plates distributed in an equal circumference mode are arranged outside the cylinder body, the lower end face of the cylinder body is a closed face, a first driving motor is arranged at the lower end of the cylinder body, the driving end of the first driving motor is connected with the center of the cylinder body, a rotary bearing is sleeved on the outer circumference of the cylinder body arranged in the rack, and the first driving motor drives the cylinder body to rotate and circle in the rack; the clamping plates realize coaxial outward diffusion or inward contraction through a driving group, the driving group is arranged in the cylinder body, the driving group comprises a second driving motor arranged in the cylinder body and a shaft rod connected with the driving end of the second driving motor, the upper end of the shaft lever is sleeved with a worm wheel, the outer part of the worm wheel is provided with a plurality of worms which are meshed with the worm wheel for transmission, the worms are vertically arranged, and one end of the worm, which is far away from the worm wheel, is sleeved with a first conical gear, the center of the end surface of the clamping plate, which is close to the cylinder body, is vertically extended with a connecting shaft, the connecting shaft penetrates through the cylinder body and is arranged in the cylinder body, and the connecting shaft is internally threaded with a transmission rod, the extension direction of the transmission rod is consistent with that of the connecting shaft, one end of the transmission rod protrudes out of the connecting shaft and is connected with a second bevel gear, and the first bevel gears and the second bevel gears are in corresponding meshing transmission in sequence;
the flanging driving structure comprises a moving seat arranged on the rack, a flanging body is arranged on the moving seat and close to the barrel, the flanging body is of a tapered structure with a narrow top and a narrow bottom, the flanging body can be movably arranged on the rack along the direction vertical to the axial direction of the barrel, a columnar pressing block is further arranged on the rack, the end face of the columnar pressing block faces the barrel, and the columnar pressing block can be drawn close to or separated from the barrel through a first driving cylinder which is telescopic in the horizontal direction;
s4, sleeving the hollow cylindrical blank on the barrel, arranging the flanging body in the barrel, keeping a distance of more than 2cm between the flanging body and the inner wall of the barrel, starting a second driving motor to rotate so as to drive a worm wheel and a worm to be mutually driven, and driving the corresponding first bevel gear and the corresponding second bevel gear to be mutually meshed for transmission by the rotation of the worm so that the transmission rod performs thread transmission in the connecting shaft so as to drive the connecting shaft and the clamping plate to approach to the inner wall of the hollow cylindrical blank;
s5, after the clamping plate is contacted with the inner wall of the cylinder body, the cylinder body is clamped and fixed through external force, and at the moment, the first driving motor is started to enable the cylinder body to rotate circumferentially in the hollow cylindrical blank, so that the complete roundness of the hollow cylindrical blank is realized;
s6, canceling an external force action for clamping and fixing the cylinder, starting the first driving motor to enable the hollow cylindrical blank to rotate together with the cylinder, simultaneously starting the first driving cylinder to enable the end face of the columnar pressing block to be in contact with the outer wall of the hollow cylindrical blank close to the side end face, moving the flanging body outwards at a constant speed until the flanging body is completely arranged outside the hollow cylindrical blank, enabling the hollow cylindrical blank to realize outward flanging while rotating circumferentially, and completing single-side flanging of the hollow cylindrical blank;
and S7, turning the hollow cylindrical blank with the single-side flanging, flanging the other end of the hollow cylindrical blank, and finally forming the air valve body.
2. The production process for the circular air valve body according to the claim 1 is characterized in that: the upper end of the flanging body is flush with the position of the hollow cylindrical blank needing flanging.
3. The production process for the circular air valve body according to claim 2, wherein a sliding rail is arranged at the upper end of the machine frame, a sliding block is arranged at the lower end of the moving seat, the sliding block is sleeved on the sliding rail, and a second driving cylinder for driving the moving seat to slide on the machine frame is further arranged on the machine frame.
4. The production process for the circular air valve body is characterized in that when the step S6 is performed, the second driving cylinder contracts to enable the flanging body on the moving seat to move in the direction away from the cylinder body.
5. The production process for the circular air valve body according to any one of claims 1 to 4, wherein the clamping plate is of a circular arc structure with an inward opening.
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| CN202110919000.1A CN113601116B (en) | 2021-08-11 | 2021-08-11 | Production process for circular air valve body |
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