CN118357347A - A ribbed cylindrical part unfolding device and unfolding method - Google Patents

Abstract

The invention discloses a ribbed cylindrical part unfolding device which comprises a steel frame, a servo motor, a servo screw rod, a guide rail, a sliding lifting supporting table, a chain stretching table and a cylindrical part fixing lifting table; the two ends of the steel frame along the length direction are respectively provided with a servo motor; the steel frame is provided with a first guide rail and a second guide rail, the first guide rail is provided with a left sliding lifting supporting table and a right sliding lifting supporting table, and the second guide rail is provided with a left chain stretching table and a right chain stretching table; the middle part of the steel frame is provided with a cylindrical part fixing lifting platform, the left sliding lifting supporting platform and the left side chain stretching platform are positioned on the left side of the cylindrical part fixing lifting platform, and the right sliding lifting supporting platform and the right side chain stretching platform are positioned on the right side of the cylindrical part fixing lifting platform; the servo motor is connected with the chain stretching table through a servo screw rod. A method of expanding a ribbed tubular member is also disclosed. The invention solves the problems of complicated unfolding process and low flattening efficiency of the ribbed cylindrical piece.

Description

A ribbed cylindrical part unfolding device and unfolding method

Technical Field

The invention belongs to the technical field of aviation manufacturing, and in particular relates to a ribbed cylindrical component unfolding device and unfolding method.

Background technique

For key load-bearing components of aviation transport equipment, such as ribbed wall panels, they are developing towards large-scale integration and complex high-rib thin-walled components. Their manufacturing level has a very important impact on the performance, manufacturing cost and manufacturing cycle of aviation equipment.

The fuselage panels are the key load-bearing structures of large aircraft, bearing the bending, shearing and torsion loads of the fuselage, accounting for 35%-45% of the fuselage structure. Through reasonable structural optimization design, the use of lightweight materials and advanced manufacturing technology, the weight of the fuselage structure can be greatly reduced and the overall performance of the aircraft can be improved. Since the fuselage panels of large aircraft have extremely high requirements for load-bearing performance, they are often made of lightweight and high-strength aluminum alloys.

There are three main manufacturing processes for the fuselage panels of existing large aircraft. The first is to use a skin-long-stringer assembly structure to form the skin and the long stringer separately, and then use riveting to connect the skin and the long stringer. This type of assembly structure results in a heavy panel, a long manufacturing cycle, and it is difficult to ensure the quality of the riveting; the second is to connect the skin and the long stringer by laser welding. Although this type of connection method can achieve structural weight reduction, it is easy to cause problems such as stress concentration and complex deformation, and the quality of the weld at the interface between the skin and the long stringer is difficult to ensure. The third is to use an extrusion process to first extrude a ribbed cylindrical part, and then flatten the ribbed cylindrical part into a ribbed flat plate; this process route can greatly increase the width of the manufactured ribbed panel, and is an ideal forming process for manufacturing integral ribbed panels.

Patent documents CN109570258A, CN113909329B, and CN104148949B have detailed the method of forming wide ribbed wall panels by combining an extrusion process with a flattening process. In comparison, the unfolding process of ribbed cylindrical parts in the prior art is relatively cumbersome, and the flattening efficiency needs to be further improved.

Therefore, it is necessary to design a new ribbed cylindrical member unfolding device and unfolding method.

Summary of the invention

The object of the present invention is to provide a ribbed cylindrical member unfolding device and unfolding method to solve the problem in the prior art mentioned in the background technology that the unfolding process of the ribbed cylindrical member is relatively complicated and the flattening efficiency needs to be further improved.

To achieve the above-mentioned purpose, the present invention provides a ribbed cylindrical component unfolding device, including a steel frame, a servo motor, a servo screw, a guide rail, a sliding lifting support platform, a chain stretching platform and a cylindrical component fixing lifting platform.

The servo motor includes a left servo motor and a right servo motor, the servo screw includes a left servo screw and a right servo screw, the sliding lifting support platform includes a left sliding lifting support platform and a right sliding lifting support platform, and the chain stretching platform includes a left chain stretching platform and a right chain stretching platform.

The steel frame is respectively provided with a left servo motor and a right servo motor at both ends along the length direction; the steel frame is provided with a guide rail laid along the length direction, the guide rail includes a first guide rail and a second guide rail, the first guide rail is provided with a left sliding lifting support platform and a right sliding lifting support platform, the second guide rail is provided with a left chain stretching and expanding platform and a right chain stretching and expanding platform; a cylindrical part fixed lifting platform is provided in the middle part of the steel frame, the left sliding lifting support platform and the left chain stretching and expanding platform are located on the left side of the cylindrical part fixed lifting platform, and the right sliding lifting support platform and the right chain stretching and expanding platform are located on the right side of the cylindrical part fixed lifting platform; the servo motor is connected to the chain stretching and expanding platform through a servo screw.

The cylindrical part fixing lifting platform is used to fix the cylindrical part with ribs, the chain stretching and expanding platform is used to cooperate with the servo motor to stretch and expand the cylindrical part with ribs, and the sliding lifting support platform is used to cooperate with the cylindrical part fixing lifting platform to adjust the stretching and expanding effect.

In a specific embodiment, the cylindrical member fixing lifting platform includes a lifting platform base, a first screw lift, an I-shaped base, a cylindrical member I-shaped base fixing block, a coupling, a hand crank handle, and a screw I-shaped base connecting sleeve.

The lifting platform base is arranged on the steel frame, the first screw lift is arranged on the lifting platform base, a screw I-base connecting sleeve is arranged under the I-beam base, the I-beam base is arranged on the upper end of the screw of the first screw lift through the screw I-beam base connecting sleeve; the screw I-beam base connecting sleeve is used to connect the upper end of the screw with the I-beam base; the input shaft of the first screw lift is connected to the hand crank handle through a coupling; the cylindrical I-beam base fixing block is arranged on the I-beam base, and the cylindrical I-beam base fixing block is used to fix the ribbed cylindrical part on the I-beam base.

In a specific embodiment, the cylindrical part fixing lifting platform includes two first screw lifts; the I-shaped base is arranged on the upper ends of the screws of the two first screw lifts through two screw I-shaped base connecting sleeves; the input shafts of the two first screw lifts are connected through a coupling; and a screw protection sleeve is arranged under each of the first screw lifts.

In a specific embodiment, the cylindrical I-beam base fixing block includes a cylindrical end fixing block, a cylindrical pressure block and a cylindrical fixing bolt; the I-beam base is provided with a threaded hole matching the cylindrical fixing bolt; the cylindrical pressure block is used to press the skin of the ribbed cylindrical part in contact with the I-beam base; the cylindrical end fixing block is used to resist the two end surfaces of the ribbed cylindrical part; through holes for bolts to pass through are provided on both ends of the cylindrical pressure block and the cylindrical end fixing block, and the cylindrical fixing bolt passes through the two ends of the cylindrical pressure block and the through holes on the cylindrical end fixing block to fix the cylindrical pressure block and the cylindrical end fixing block on the I-beam base.

In a specific embodiment, the chain stretching and expanding platform includes a stretching and expanding clamp, a stretching and expanding chain, a ball screw sleeve, a stretching and expanding platform guide rail slider, a stretching and expanding platform bottom plate, a stretching and expanding platform support frame, a first reduction motor, a transmission shaft, a sprocket and a bearing seat.

The stretching table guide rail slider is matched and slidably arranged on the second guide rail, the stretching table base plate is mounted on two parallel stretching table guide rail sliders, and a ball screw sleeve is also arranged on the stretching table base plate, and the ball screw sleeve is used to connect the stretching table base plate with the servo screw.

A stretching and expanding platform support frame is fixedly arranged on the bottom plate of the stretching and expanding platform, a bearing seat and a first reduction motor are arranged on the stretching and expanding platform support frame, a transmission shaft is arranged on the bearing seat, and the first reduction motor is used to drive the transmission shaft to rotate; the sprocket is arranged on the transmission shaft; the sprocket is meshed and connected with the stretching and expanding chain, and one end of the stretching and expanding chain is detachably connected to the stretching and expanding clamp.

In a specific embodiment, the stretching and expansion platform support frame includes a stretching and expansion platform side plate and a stretching and expansion platform support rod. The two stretching and expansion platform side plates are relatively arranged on the stretching and expansion platform bottom plate. A plurality of stretching and expansion platform support rods are arranged between the two stretching and expansion platform side plates. The two ends of the stretching and expansion platform support rods are respectively vertically connected to the two stretching and expansion platform side plates.

The sides of the side plates and bottom plates of the stretching and expanding platform are also provided with support frame reinforcing ribs; the side plates of the stretching and expanding platform are also provided with motor support frames.

One end of the transmission shaft and the output shaft of the first reduction motor are both provided with synchronous pulleys, and a rubber synchronous belt is provided between the synchronous pulley on the transmission shaft and the synchronous pulley on the first reduction motor for connection.

In a specific embodiment, the stretching and expanding clamp includes a first stretching and expanding clamp and a second stretching and expanding clamp;

The first stretching clamp includes a first clamping bar and a second clamping bar. Both ends of the first clamping bar and the second clamping bar are provided with through holes for installing bolt groups. The clamping is completed by installing bolt groups at both ends of the first clamping bar and the second clamping bar. The first clamping bar is provided with connecting ear holes for detachable connection with the stretching chain.

The second expansion clamp includes an upper expansion clamp, a lower expansion clamp and an expansion bolt group. A chain connection hole for detachably connecting with the expansion chain is provided on one side of the lower expansion clamp. A row of through holes for installing the expansion bolt group is symmetrically provided on the upper expansion clamp and the lower expansion clamp. Anti-slip teeth are provided on the opposite surfaces of the upper expansion clamp and the lower expansion clamp.

The other end of the stretching chain is connected with a hanging plate.

In a specific embodiment, the sliding lifting support platform includes a sliding support platform slider, a sliding support platform bottom plate, a second screw lift, a coupling, a second reduction motor and a sliding support round rod.

The sliding support platform slider is matched and slidably arranged on the first guide rail, and the sliding support platform base plate is mounted on two parallel sliding support platform sliders; the second reduction motor and the second screw lift are both arranged on the sliding support platform base plate; a coupling is arranged between the second reduction motor and the second screw lift for connection; the sliding support round rod is arranged at the upper end of the screw of the second screw lift.

In a specific embodiment, two second screw lifts are arranged on the bottom plate of the sliding support platform, and a coupling is arranged between the two second screw lifts for linkage; a screw protection sleeve is arranged below each of the second screw lifts;

A screw rod connecting sleeve is arranged below the sliding support round rod, and the sliding support round rod is arranged on the upper end of the screw rods of the two second screw rod lifts through two screw rod connecting sleeves; the screw rod connecting sleeve is used to connect the upper end of the screw rod with the sliding support round rod; a limiting flange is provided on the sliding support round rod, and the limiting flange is used to limit the two end faces of the ribbed cylindrical part.

The present invention also provides a method for unfolding a ribbed cylindrical member, which uses the ribbed cylindrical member unfolding device as described above. The method for unfolding a ribbed cylindrical member specifically comprises the following steps:

Step 1, drilling and cutting the ribbed cylindrical part;

Step 2, fix the ribbed cylindrical part on the cylindrical part fixing lifting platform;

Step 3: Initially stretch and expand the ribbed cylindrical part, pull from the middle of the left and right skins of the ribbed cylindrical part to open the cut part;

Step 4, connecting the cut edge of the stretched ribbed cylindrical part to the chain stretching and expanding table;

Step 5: Perform secondary stretching and expansion on the ribbed cylindrical member until a fully expanded ribbed wall panel is formed.

Compared with the prior art, the present invention has the following beneficial effects:

The invention solves the problem that the unfolding process of the ribbed cylindrical part is relatively complicated and the flattening efficiency is low.

The ribbed cylindrical member unfolding device of the present invention has the advantages of simple operation and high unfolding efficiency, and ensures the quality of the obtained ribbed wall panel.

The unfolded ribbed wall panel obtained by the ribbed cylindrical part unfolding method of the present invention has high overall performance, and the present invention can achieve efficient and high-quality unfolding of ribbed cylindrical parts, avoiding the high mold design and manufacturing costs to a certain extent, and also saving the steps required in the flattening process, thereby reducing the time cost.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

FIG1 is a schematic diagram of a ribbed cylindrical member deployment device according to the present invention;

FIG2 is a schematic diagram of a ribbed cylindrical member after drilling and sectioning;

FIG3 is a schematic diagram of a cylindrical piece pressing block of the present invention;

FIG4 is a schematic diagram of a cylindrical member fixing lifting platform to which a ribbed cylindrical member has been fixed;

FIG5 is a schematic diagram of a rear view of a cylindrical member fixing lifting platform to which a ribbed cylindrical member has been fixed;

FIG6 is a schematic diagram of a ribbed cylindrical member unfolding device ready for preliminary stretching and expansion;

FIG7 is a schematic diagram of a first stretching clamp installed on a stretching chain;

FIG8 is a schematic diagram of a second tensioning and expanding fixture;

FIG9 is a schematic diagram of a ribbed cylindrical member that has completed preliminary stretching and expansion;

FIG10 is a schematic diagram of a chain stretching table of the present invention;

FIG11 is a schematic diagram of a ribbed cylindrical member unfolding device ready for secondary stretching;

FIG12 is a schematic diagram of a sliding lifting support platform of the present invention;

FIG13 is a schematic diagram of a ribbed cylindrical member during secondary stretching and expansion;

FIG14 is a schematic diagram of a ribbed cylindrical member unfolding device undergoing secondary stretching;

FIG15 is a schematic diagram of a ribbed cylindrical member deployment device that is stretched and expanded twice to a curved state;

Among them, 1. Steel frame; 2. Servo motor; 3. Servo screw; 4. Guide rail; 5. Sliding lifting support platform; 6. Chain stretching platform; 7. Cylinder fixed lifting platform; 51. Sliding support platform slider; 52. Sliding support platform bottom plate; 53. Second screw lifter; 54. Second reduction motor; 55. Sliding support round rod; 61. Stretching fixture; 62. Stretching chain; 63. Ball screw shaft sleeve; 64. Stretching platform guide rail slider; 65. Stretching platform Bottom plate; 66, stretching table support frame; 67, first reduction motor; 68, transmission shaft; 69, sprocket; 611, first stretching fixture; 612, second stretching fixture; 71, lifting platform base; 72, first screw lift; 73, I-shaped base; 74, cylindrical I-shaped base fixing block; 75, hand crank handle; 76, screw I-shaped base connecting sleeve; 741, cylindrical end fixing block; 742, cylindrical pressure block; 01, cylindrical part with ribs.

Detailed ways

The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

Example 1

The present invention provides a ribbed cylindrical component unfolding device, comprising a steel frame 1, a servo motor 2, a servo screw 3, a guide rail 4, a sliding lifting support platform 5, a chain stretching platform 6 and a cylindrical component fixing lifting platform 7.

The servo motor 2 includes a left servo motor and a right servo motor, the servo screw 3 includes a left servo screw and a right servo screw, the sliding lifting support platform 5 includes a left sliding lifting support platform and a right sliding lifting support platform, and the chain pulling and expanding platform 6 includes a left chain pulling and expanding platform and a right chain pulling and expanding platform.

The steel frame 1 is respectively provided with a left servo motor and a right servo motor at both ends along the length direction; the steel frame 1 is provided with a guide rail 4 laid along the length direction, the guide rail 4 includes a first guide rail and a second guide rail, the first guide rail is provided with a left sliding lifting support platform and a right sliding lifting support platform, the second guide rail is provided with a left chain stretching platform and a right chain stretching platform; a cylindrical part fixed lifting platform 7 is provided in the middle part of the steel frame 1, the left sliding lifting support platform and the left chain stretching platform are located on the left side of the cylindrical part fixed lifting platform 7, and the right sliding lifting support platform and the right chain stretching platform are located on the right side of the cylindrical part fixed lifting platform 7.

The left servo motor is connected to the left chain stretching platform through the left servo lead screw, and the right servo motor is connected to the right chain stretching platform through the right servo lead screw.

The cylindrical component fixing lifting platform 7 is used to fix the cylindrical component with ribs, the chain stretching and expanding platform 6 is used to cooperate with the servo motor to stretch and expand the cylindrical component with ribs, and the sliding lifting support platform 5 is used to cooperate with the cylindrical component fixing lifting platform to adjust the stretching and expanding effect.

The left-right direction is along the length direction of the steel frame, and the front-back direction is along the width direction of the steel frame.

The cylindrical member fixing lifting platform 7 includes a lifting platform base 71, a first screw lift 72, an I-shaped base 73, a cylindrical member I-shaped base fixing block 74, a coupling, a hand crank handle 75, and a screw I-shaped base connecting sleeve 76.

The lifting platform base 71 is arranged on the steel frame 1, the first screw lift 72 is arranged on the lifting platform base 71, a screw I-shaped base connecting sleeve 76 is arranged below the I-shaped base 73, and the I-shaped base 73 is arranged on the upper end of the screw of the first screw lift 72 through the screw I-shaped base connecting sleeve 76; the screw I-shaped base connecting sleeve 76 is used to connect the upper end of the screw with the I-shaped base 73; the input shaft of the first screw lift 72 is connected to the hand crank 75 through a coupling; the cylindrical I-shaped base fixing block 74 is arranged on the I-shaped base 73, and the cylindrical I-shaped base fixing block 74 is used to fix the ribbed cylindrical part 01 on the I-shaped base. The coupling is a coupling with a keyway.

The cylindrical fixed lifting platform includes two first screw lifts 72; an I-shaped base 73 is arranged on the upper ends of the screws of the two first screw lifts 72 through two screw I-shaped base connecting sleeves 76; the input shafts of the two first screw lifts 72 are connected through a coupling; and a screw protection sleeve is arranged below each of the first screw lifts 72.

The cylindrical I-shaped base fixing block 74 includes a cylindrical end fixing block 741, a cylindrical pressure block 742 and a cylindrical fixing bolt; the I-shaped base 73 is provided with a threaded hole matching the cylindrical fixing bolt; the cylindrical pressure block 742 is used to press the skin of the ribbed cylindrical part in contact with the I-shaped base; the cylindrical end fixing block 741 is used to abut the two end faces of the ribbed cylindrical part; both ends of the cylindrical pressure block 742 and the cylindrical end fixing block 741 are provided with through holes for bolts to pass through, and the cylindrical fixing bolt passes through the two ends of the cylindrical pressure block and the through holes on the cylindrical end fixing block to fix the cylindrical pressure block 742 and the cylindrical end fixing block 741 on the I-shaped base 73, so that the cylindrical fixing bolt forms a threaded connection with the threaded hole provided on the I-shaped base. The cylindrical fixing bolt is an external hexagonal bolt.

The I-shaped base 73 is evenly provided with two rows of threaded holes side by side, and a groove slide is also provided on the I-shaped base, and two small sliders are provided in the groove slide. The two small sliders can only move along the groove slide. The two small sliders are provided with threaded holes; the fixing block at the end of the cylindrical part has a groove, and the bottom of the groove is provided with a through hole for the bolt to pass through; the bolt passes through the through hole at the bottom of the groove of the fixing block at the end of the cylindrical part and is threadedly connected with the threaded hole on the small slider, so that the fixing block at the end of the cylindrical part can only move along the groove slide with the small slider.

The chain stretching and expanding platform 6 includes a stretching and expanding fixture 61, a stretching and expanding chain 62, a ball screw sleeve 63, a stretching and expanding platform guide rail slider 64, a stretching and expanding platform bottom plate 65, a stretching and expanding platform support frame 66, a first reduction motor 67, a transmission shaft 68, a sprocket 69 and a bearing seat.

The stretching platform guide rail slider 64 is matched and slidably set on the second guide rail, and the stretching platform base plate 65 is mounted on two parallel stretching platform guide rail sliders 64. A ball screw sleeve 63 is also set on the stretching platform base plate 65. The ball screw sleeve 63 is used to connect the stretching platform base plate 65 with the servo screw 3.

A stretching and expanding platform support frame 66 is fixedly installed on the stretching and expanding platform bottom plate 65, and a bearing seat and a first reduction motor 67 are installed on the stretching and expanding platform support frame 66. The transmission shaft 68 is arranged on the bearing seat, and the first reduction motor 67 is used to drive the transmission shaft 68 to rotate; the sprocket 69 is arranged on the transmission shaft 68; the sprocket 69 is meshed and connected with the stretching chain 62, and one end of the stretching chain 62 is detachably connected to the stretching clamp 61.

The stretching platform support frame 66 includes a stretching platform side plate and a stretching platform support rod. The two stretching platform side plates are relatively arranged on the stretching platform bottom plate 65. A plurality of stretching platform support rods are arranged between the two stretching platform side plates. The two ends of the stretching platform support rods are respectively vertically connected to the two stretching platform side plates.

The sides of the side plates and bottom plates of the stretching and expanding platform are also provided with support frame reinforcing ribs; the side plates of the stretching and expanding platform are also provided with motor support frames.

One end of the transmission shaft 68 and the output shaft of the first reduction motor 67 are both provided with synchronous pulleys, and a rubber synchronous belt is provided between the synchronous pulley on the transmission shaft and the synchronous pulley on the first reduction motor 67 for connection.

The stretching fixture 61 includes a first stretching fixture 611 and a second stretching fixture 612;

The first expansion clamp 611 includes a first clamping bar and a second clamping bar, both ends of which are provided with through holes for installing bolt groups, and the clamping is completed by installing bolt groups at both ends of the first clamping bar and the second clamping bar; the first clamping bar is provided with connecting ear holes for detachable connection with the expansion chain 62. The first expansion clamp is connected to the expansion chain through the connecting ear holes, the clamping ring and the grooved pin.

The second expansion clamp 612 includes an upper expansion clamp, a lower expansion clamp and an expansion bolt group. A chain connecting hole for detachable connection with the expansion chain 62 is provided on one side of the lower expansion clamp. A row of through holes for installing the expansion bolt group are symmetrically provided on the upper expansion clamp and the lower expansion clamp. Anti-slip teeth are provided on the opposite surfaces of the upper expansion clamp and the lower expansion clamp.

The other end of the stretching chain 62 is connected to a hanging plate, and the hanging plate rises and falls as the stretching chain is pulled.

The sliding lifting support platform 5 includes a sliding support platform slider 51 , a sliding support platform bottom plate 52 , a second screw lift 53 , a coupling, a second reduction motor 54 and a sliding support round rod 55 .

The sliding support platform slider 51 is matched and slidably arranged on the first guide rail, and the sliding support platform bottom plate 52 is mounted on two parallel sliding support platform sliders 51; the second reduction motor 54 and the second screw lift 53 are both arranged on the sliding support platform bottom plate 52; a coupling is arranged between the second reduction motor 54 and the second screw lift 53 for connection; the sliding support round rod 55 is arranged on the upper end of the screw of the second screw lift 53. The sliding support round rod 55 is used to form an arc-shaped contact surface for supporting the cylindrical member with ribs.

Two second screw lifts 53 are arranged on the bottom plate 52 of the sliding support platform, and a coupling is arranged between the two second screw lifts 53 for linkage; a screw protection sleeve is arranged below each of the second screw lifts 53 .

A screw rod connecting sleeve is arranged below the sliding support round rod 55, and the sliding support round rod 55 is arranged on the upper end of the screw rods of the two second screw lifts 53 through two screw rod connecting sleeves; the screw rod connecting sleeve is used to connect the upper end of the screw rod with the sliding support round rod; a limiting flange is provided on the sliding support round rod 55, and the limiting flange is used to limit the two end surfaces of the ribbed cylindrical part.

The present invention also provides a method for unfolding a ribbed cylindrical member, which uses the ribbed cylindrical member unfolding device as described above. The method for unfolding a ribbed cylindrical member specifically comprises the following steps:

Step 1, drilling and cutting the ribbed cylindrical part 01;

Step 2, fix the ribbed cylindrical part 01 on the cylindrical part fixing lifting platform 7;

Step 3: Perform preliminary stretching and expansion on the ribbed cylindrical part 01, pulling from the middle of the left and right skins of the ribbed cylindrical part to open the cut part;

Step 4, connecting the cut edge of the stretched ribbed cylindrical member to the chain stretching and expanding platform 6;

Step 5: Perform secondary stretching and expansion on the ribbed cylindrical member until a fully expanded ribbed wall panel is formed.

In step 1, the ribbed cylindrical part is first cut and the drilling area is marked. The ribbed cylindrical part is made of high-strength aluminum alloy, and the drilling area is drilled to form a stretched hole. The diameter of the stretched hole is 6 mm. The arrangement of the stretched holes is arranged according to the through holes of the stretched bolt group installed on the second stretched fixture, and the sectioning line is cut.

In step 2, first, move the ribbed cylindrical part that has been cut and drilled to the I-beam base with the cutting seam facing upward. The two cylindrical part end fixing blocks respectively press against the two end faces of the ribbed cylindrical part. The two small sliders slide into the grooves of the I-beam base respectively. At the same time, use the hexagon socket bolts to pass through the through holes in the bottom grooves of the cylindrical part end fixing blocks, tighten the hexagon socket bolts and the threaded holes on the small sliders, and fix the cylindrical part end fixing blocks through the threaded connection between the hexagon socket bolts and the small sliders, thereby limiting the movement of the ribbed cylindrical part in the front and rear directions.

Secondly, a cylindrical component pressing block is covered on the inner bottom skin of the ribbed cylindrical component, and the cylindrical component pressing block, the cylindrical component end fixing block and the I-shaped base are connected together by cylindrical component fixing bolts to prevent the ribbed cylindrical component from rotating during the unfolding process.

In addition, the I-shaped base and the screw I-shaped base connecting sleeve are connected together by bolt connection. The side of the screw I-shaped base connecting sleeve with the threaded hole is threadedly connected to the upper end of the screw in the lift. The screw lifts are all commercially purchased. By turning the hand crank, the input shaft of the screw lift is rotated through the coupling, thereby driving the screw of the screw lift to move up and down, thereby realizing the up and down movement of the I-shaped base of the cylindrical fixed lifting platform.

In step 3, first, turn the hand crank to raise the I-shaped base of the cylindrical part fixing lifting platform to a suitable height, use the first stretching clamp to clamp the middle of the left and right skins of the ribbed cylindrical part, and make the stretching chain in a relatively horizontal position. The first stretching clamp is connected to the stretching chain through connecting ear holes, clamping rings and slotted pins. During the stretching process of the stretching chain, the rotation of the servo motors at both ends of the steel frame causes the servo screw to rotate, and the ball screw sleeve of the chain stretching platform is connected to the servo screw through a threaded connection, so that the two chain stretching platforms move to the left and right ends respectively along the second guide rail on the steel frame, and the servo motor accurately controls the sliding distance of the chain stretching platform along the guide rail.

Turn on the reduction motor on the left/right chain stretching table. The reduction motor rotates to drive the rubber synchronous belt and synchronous pulley to rotate, and further transmits the torque to the drive shaft to drive the sprocket to rotate. The chain engages with the sprocket to realize the chain stretching and expansion of the ribbed cylindrical part. The stretching and expansion process should be as slow as possible, and the speed should be adjusted to be less than or equal to 5 rpm. After multiple reciprocating stretching and expansion, the ribbed cylindrical part is stretched and expanded until the distance between the cut parts of the ribbed cylindrical part is greater than the radius of the ribbed cylindrical part after the stretching and expansion chain is removed and rebounded.

In step 4, the ribbed cylindrical member that has completed preliminary expansion is clamped at its section by a second expansion clamp. The second expansion clamp includes an upper expansion clamp, a lower expansion clamp, and an expansion bolt group. The upper expansion clamp and the lower expansion clamp are each drilled with 6 countersunk holes with a diameter of 6 mm. The expansion bolt group passes through the countersunk holes of the upper expansion clamp, the expansion holes of the sectioned edge of the ribbed cylindrical member, and the countersunk holes of the lower expansion clamp and is tightened, so that the second expansion clamp clamps the sectioned edge of the ribbed cylindrical member.

A stretching chain on the chain stretching table is connected to a chain connecting hole on the second stretching fixture through a grooved pin and a snap ring, and another stretching chain on the chain stretching table is connected to another chain connecting hole on the second stretching fixture through a grooved pin and a snap ring.

In step 5, in order to expand the arc section at the cut into a relatively straight state, the sliding lifting support platforms on both sides need to move horizontally along the left and right directions of the first guide rail during the expansion process, and the servo motors are turned on to synchronously make the chain expansion platforms on both sides move slowly toward the left and right ends of the steel frame along the second guide rail, and the reduction motors on the chain expansion platforms on both sides are turned on. The reduction motors rotate to realize the secondary expansion of the ribbed cylindrical parts by the chain expansion platforms.

During the secondary stretching and expansion process, it is necessary to continuously adjust the horizontal movement distance of the sliding lifting support platforms on the left and right sides. The reduction motor drives the second screw lift through the coupling to synchronously lift the screws in the two second screw lifts. During the chain stretching and expansion process, the two flanges mounted on the sliding support round rod respectively press against the two end faces of the ribbed cylindrical part.

At this time, it is necessary to manually crank the handle to adjust the lifting height of the screw of the first screw lift so that the stretching chain is at a more appropriate stretching angle. The chain is stretched multiple times and the moving distance of the chain stretching platform, the fulcrum height of the sliding support round rod of the sliding lifting support platform, and the lifting height of the cylindrical part fixing lifting platform are adjusted multiple times until the ribbed cylindrical part is stretched to a bending state.

Finally, slowly move the chain stretching platform and lower the lifting height of the cylindrical fixed lifting platform to make the stretching chain in a non-tensioned state, unload the stretching chain, and make the ribbed cylindrical part rebound, thus forming the unfolded ribbed wall panel as required.

The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions and substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the protection scope of the present invention.

Claims (10)

1. The cylindrical part unfolding device with the ribs is characterized by comprising a steel frame (1), a servo motor (2), a servo screw (3), a guide rail (4), a sliding lifting supporting table (5), a chain stretching table (6) and a cylindrical part fixing lifting table (7);

The servo motor (2) comprises a left servo motor and a right servo motor, the servo screw (3) comprises a left servo screw and a right servo screw, the sliding lifting support table (5) comprises a left sliding lifting support table and a right sliding lifting support table, and the chain stretching table (6) comprises a left chain stretching table and a right side chain stretching table;

The two ends of the steel frame (1) along the length direction are respectively provided with a left servo motor and a right servo motor; the steel frame (1) is provided with a guide rail (4) paved along the length direction, the guide rail (4) comprises a first guide rail and a second guide rail, the first guide rail is provided with a left sliding lifting supporting table and a right sliding lifting supporting table, and the second guide rail is provided with a left chain stretching table and a right chain stretching table; the middle part of the steel frame (1) is provided with a cylindrical part fixing lifting table (7), the left sliding lifting supporting table and the left side chain stretching table are positioned on the left side of the cylindrical part fixing lifting table (7), and the right sliding lifting supporting table and the right side chain stretching table are positioned on the right side of the cylindrical part fixing lifting table (7); the servo motor (2) is connected with the chain stretching table (6) through a servo screw rod (3).

2. The ribbed cylinder part unfolding apparatus according to claim 1, characterized in that the cylinder part fixing lifting platform (7) comprises a lifting platform base (71), a first screw rod lifter (72), an i-shaped base (73), a cylinder part i-shaped base fixing block (74), a coupler, a hand crank (75) and a screw rod i-shaped base connecting sleeve (76);

The lifting platform base (71) is arranged on the steel frame (1), the first screw rod lifter (72) is arranged on the lifting platform base (71), a screw rod I-shaped base connecting sleeve (76) is arranged below the I-shaped base (73), and the I-shaped base (73) is arranged at the upper end of a screw rod of the first screw rod lifter (72) through the screw rod I-shaped base connecting sleeve (76); the screw rod I-shaped base connecting sleeve (76) is used for connecting the upper end of the screw rod with the I-shaped base (73); the input shaft of the first screw rod lifter (72) is connected with a hand crank (75) through a coupler; the cylindrical part I-shaped base fixing block (74) is arranged on the I-shaped base (73), and the cylindrical part I-shaped base fixing block (74) is used for fixing the ribbed cylindrical part (01) on the I-shaped base (73).

3. The ribbed drum deployment device of claim 2, wherein the drum stationary lift includes two first lead screw lifts (72); the I-shaped base (73) is arranged at the upper ends of the screw rods of the two first screw rod lifters (72) through two screw rod I-shaped base connecting sleeves (76); the input shafts of the two first screw rod lifters (72) are connected through a coupler; screw rod protection sleeves are arranged below the first screw rod lifter (72).

4. The ribbed cartridge deployment device of claim 2 wherein the cartridge i-shaped base fixing block (74) comprises a cartridge end fixing block (741), a cartridge press block (742) and a cartridge fixing bolt; the I-shaped base (73) is provided with a threaded hole matched with the cylindrical part fixing bolt; the cylindrical part pressing block (742) is used for pressing the skin of the ribbed cylindrical part contacted with the I-shaped base; the end fixing blocks (741) of the cylindrical part are used for propping against the two end faces of the ribbed cylindrical part; through holes for bolts to pass are formed in both ends of the cylindrical part pressing block (742) and the cylindrical part end fixing blocks (741), and the cylindrical part pressing block (742) and the cylindrical part end fixing blocks (741) are fixed on the I-shaped base (73) by the cylindrical part fixing bolts which pass through the through holes in both ends of the cylindrical part pressing block (742) and the cylindrical part end fixing blocks (741).

5. The ribbed cylindrical member expanding device according to claim 1, characterized in that said chain expanding table (6) comprises a expanding jig (61), a expanding chain (62), a ball screw shaft sleeve (63), a expanding table guide rail slider (64), a expanding table bottom plate (65), a expanding table supporting frame (66), a first gear motor (67), a transmission shaft (68), a sprocket (69) and a bearing block;

The stretching table guide rail sliding blocks (64) are arranged on the second guide rail in a matched sliding manner, a stretching table bottom plate (65) is erected on the two parallel stretching table guide rail sliding blocks (64), a ball screw shaft sleeve (63) is further arranged on the stretching table bottom plate (65), and the ball screw shaft sleeve (63) is used for enabling the stretching table bottom plate (65) to be connected with the servo screw (3);

A stretching table support frame (66) is fixedly arranged on the stretching table bottom plate (65), a bearing seat and a first speed reducing motor (67) are arranged on the stretching table support frame (66), a transmission shaft (68) is arranged on the bearing seat, and the first speed reducing motor (67) is used for driving the transmission shaft (68) to rotate; the chain wheel (69) is arranged on the transmission shaft (68); the chain wheel (69) is meshed with the chain (62), and one end of the chain (62) is detachably connected with the chain-expanding clamp (61).

6. The ribbed cylindrical member expanding device according to claim 5, characterized in that the stretching table supporting frame (66) comprises a stretching table side plate and a stretching table supporting rod, the two stretching table side plates are oppositely arranged on the stretching table bottom plate (65), a plurality of stretching table supporting rods are arranged between the two stretching table side plates, and two ends of the stretching table supporting rod are respectively and vertically connected to the two stretching table side plates;

the side surfaces of the side plates and the bottom plate of the stretching table are also provided with support frame reinforcing ribs; a motor support frame is also arranged on the side plate of the stretching and expanding table;

One end of the transmission shaft (68) and an output shaft of the first gear motor (67) are both provided with synchronous pulleys, and a rubber synchronous belt is arranged between the synchronous pulleys on the transmission shaft (68) and the synchronous pulleys on the first gear motor (67) for connection.

7. The ribbed drum deployment device of claim 5, characterized in that the stretching clamps (61) comprise a first stretching clamp (611) and a second stretching clamp (612);

The first stretching clamp (611) comprises a first clamping strip and a second clamping strip, through holes for installing bolt groups are formed in the two ends of the first clamping strip and the second clamping strip, and clamping is completed by installing the bolt groups in the two ends of the first clamping strip and the second clamping strip; the first clamping strip is provided with a connecting lug hole which is used for detachably connecting with the stretching chain (62);

The second stretching clamp (612) comprises an upper stretching clamp, a lower stretching clamp and a stretching bolt set, a chain connecting hole for detachably connecting with a stretching chain (62) is formed in one side edge of the lower stretching clamp, a row of through holes for installing the stretching bolt set are symmetrically formed in the upper stretching clamp and the lower stretching clamp, and anti-slip insections are formed in the opposite surfaces of the upper stretching clamp and the lower stretching clamp;

The other end of the stretching chain (62) is connected with a hanging plate.

8. The ribbed cylindrical member expanding device according to claim 1, characterized in that said sliding elevating support table (5) comprises a sliding support table slider (51), a sliding support table bottom plate (52), a second screw lifter (53), a coupling, a second gear motor (54) and a sliding support round bar (55);

The sliding support table sliding blocks (51) are arranged on the first guide rail in a matched sliding manner, and the sliding support table bottom plate (52) is erected on the two parallel sliding support table sliding blocks (51); the second gear motor (54) and the second screw rod lifter (53) are arranged on the bottom plate (52) of the sliding support table; a coupling is arranged between the second gear motor (54) and the second screw rod lifter (53) for connection; the sliding support round bar (55) is arranged at the upper end of the screw rod of the second screw rod lifter (53).

9. The ribbed cylindrical piece unfolding apparatus according to claim 8, characterized in that two second screw lifters (53) are arranged on the bottom plate (52) of the sliding support table, and a coupling is arranged between the two second screw lifters (53) for linkage; screw rod protective sleeves are arranged below the second screw rod lifters (53);

a screw rod round bar connecting sleeve is arranged below the sliding support round bar (55), and the sliding support round bar (55) is arranged at the upper ends of screw rods of the two second screw rod lifters (53) through the two screw rod round bar connecting sleeves; the screw rod round bar connecting sleeve is used for connecting the upper end of the screw rod with the sliding support round bar; the sliding support round rod (55) is sleeved with a limiting flange which is used for limiting two end faces of the ribbed cylindrical piece.

10. A ribbed cylindrical member expanding method, characterized in that the ribbed cylindrical member expanding device according to any one of claims 1 to 9 is employed, comprising the steps of:

step1, drilling and cutting a ribbed cylindrical piece (01);

Step 2, fixing the ribbed cylindrical part (01) on a cylindrical part fixing lifting table (7);

Step 3, carrying out preliminary stretching on the ribbed cylindrical piece (01), and pulling from the middle of the skins of the left side and the right side of the ribbed cylindrical piece to pull the cut part open;

Step 4, connecting the cut edge of the pulled-open ribbed cylindrical piece with a chain pulling and expanding table (6);

And 5, carrying out secondary stretching on the ribbed cylindrical member until the stretched ribbed wallboard is formed.