CN111360482B

CN111360482B - Transposition device for welding steel members

Info

Publication number: CN111360482B
Application number: CN202010285173.8A
Authority: CN
Inventors: 吕燕霞; 戴俊辉
Original assignee: Zhejiang Industry Polytechnic College
Current assignee: Zhejiang Industry Polytechnic College
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2021-09-21
Anticipated expiration: 2040-04-13
Also published as: CN111360482A

Abstract

The invention provides a transposition device for welding a steel member, and belongs to the technical field of steel member processing equipment. This transposition device includes two portal frames, two location rotary mechanism and a servo motor, it is connected with a synchronous pivot to rotate between two portal frames, the one end of synchronous pivot links to each other with servo motor's output shaft, two location rotary mechanism all set up between two portal frames, location rotary mechanism includes the rotator of cylinder form, set up the bar slot that runs through the rotator global on the rotator, the bar slot forms a breach that is used for inserting the steel member on the rotator global, the rotator is fixed on synchronous pivot, the bar slot is provided with and can will insert the tight clamping structure of the steel member clamp who establishes in the bar slot, the bar slot of two rotators is in on same straight line, the bar slot is parallel with synchronous pivot, it carries out welded operation district to the steel member tip to have between two rotators. The invention has the advantages of low construction difficulty and the like.

Description

Transposition device for welding steel members

Technical Field

The invention belongs to the technical field of steel member processing equipment, and relates to a transposition device for welding a steel member.

Background

The steel member often needs to weld because of the needs of length, because its quality is big, length is longer (especially during two-stage welding), welding requirement is higher, often because can't steady upset steel member with change the welding position and lead to welding quality poor.

Through retrieval, chinese patent with publication number [ CN110919281A ] discloses a steel member stands up device that shifts, and its purpose is similar with this application, and this stands up device that shifts carries out the centre gripping through two rotatory rings respectively with two steel members that wait to weld, then realizes the switching of welding position through two rotatory rings of teeth synchronous revolution, and it has following problem: 1. two steel members to be welded are difficult to align, the steel members are lifted to the positions of the rotary toothed rings by manpower or hoisting equipment and then inserted into the rotary toothed rings, if the steel members are clamped at the moment, the positions of the two steel members cannot be finely adjusted and aligned, the alignment is controlled by the hoisting equipment, the difficulty is extremely high, and moreover, the long steel members are stressed and bent, so that the device has high construction difficulty, the steel members are required to be inserted in each welding, and the steel members need to be taken out after the welding, the construction period is long, and the efficiency is low; 2. in the device, the clamping of the steel member is realized by a plurality of clamping plates from different directions, and in the clamping process, all the clamping plates are asynchronous, namely, even if the steel member is suspended in an aligned position by hoisting equipment, the steel member is also dislocated and moved under the action of the clamping plates, so that the alignment precision is low; 3. the transposition of rotatory realization through rotatory ring gear to the steel member, heavy at rotatory in-process steel member matter, and the afterbody is in the state of rocking, and the rotatory ring gear bearing of tooth meshing is great, and its meshing clearance can cause the welding end to receive external force great, produces continuous, the direction to the steel member welding end and follows the stress that the rotation constantly switches, especially when the welding position is few, welding strength is less strong, leads to the welding position pine to take off the disconnection easily in the rotatory process, is unfavorable for the construction.

In this respect, the application provides a steel member welding transposition device that the construction degree of difficulty is low, efficiency is higher, the welded end of being convenient for is accurate to it.

Disclosure of Invention

The invention aims to provide a transposition device for welding steel members, aiming at solving the problems in the prior art, and how to improve the construction portability.

The purpose of the invention can be realized by the following technical scheme: a transposition device for welding steel members is characterized by comprising two portal frames, two positioning rotating mechanisms and a servo motor, wherein the body of the servo motor is fixed on one portal frame, a synchronous rotating shaft is connected between the two portal frames in a rotating manner, one end of the synchronous rotating shaft is connected with an output shaft of the servo motor, the two positioning rotating mechanisms are arranged between the two portal frames, each positioning rotating mechanism comprises a cylindrical rotating body, a strip-shaped slot penetrating through the peripheral surface of the rotating body is formed in the rotating body, a notch for inserting the steel member is formed in the peripheral surface of the rotating body, the rotating body is fixed on the synchronous rotating shaft, the strip-shaped slot is provided with a clamping structure capable of clamping the steel member inserted into the strip-shaped slot, the strip-shaped slots of the two rotating bodies are positioned on the same straight line, the bar slot is parallel with synchronous pivot, has between two rotators to be convenient for carry out welded operation district to the steel member tip.

In the above transposition device for welding the steel member, the portal frame comprises an arched body, a suspension arm extending to the middle of the body is fixedly arranged on the inner wall of the top of the body, and the synchronous rotating shaft is rotatably connected to the suspension arm.

In the above-mentioned transposition device for welding steel members, the clamping structure includes a mounting opening arranged at the middle part of the rotating body, a pressing plate is slidably connected between two side walls of the mounting opening along the radial line direction of the rotating body, one side of the pressing plate far away from the synchronous rotating shaft is provided with a linear motor, the rotating body is fixed on the casing of the linear motor, a push rod of the linear motor is fixed on the pressing plate, two propelling assemblies symmetrically distributed at two sides of the strip-shaped slot are arranged in the rotating body, each propelling assembly comprises a rotating rod, two synchronous gears respectively fixed at two ends of the rotating rod, a guide groove penetrating through the side walls of the strip-shaped slot, a toothed plate slidably connected in the guide groove and a swing arm fixed on the rotating rod, two ends of the toothed plate are respectively provided with racks capable of being engaged with the two synchronous gears, and the inner end of the swing arm is fixedly provided with a clamping plate positioned in the strip-shaped slot, the end of the swing arm far away from the rotating rod is abutted against the side face of one side of the pressing plate close to the synchronous rotating shaft, and the end of the swing arm far away from the rotating rod inclines towards the direction far away from the synchronous rotating shaft.

In the above transposition device for welding the steel member, the rack is arranged on one side surface of the toothed plate, the other side surface of the toothed plate is provided with a sliding groove, and the side wall of the guide groove is provided with a guide rail matched with the sliding groove.

In the transposition device for welding the steel members, the two ends of the pressing plate are respectively provided with a plurality of limiting grooves, and the rotating body is provided with limiting convex ribs matched with the limiting grooves.

In foretell steel member welding usefulness transposition device, servo motor's casing is fixed at the top of one of them portal frame, the fixed sprocket that is provided with on servo motor's the output shaft, the fixed sprocket second that is provided with in one end of synchronous rotating shaft, link to each other through the chain between sprocket first and the sprocket second, the chain is located the outside of davit.

In foretell transposition device of steel member welding usefulness, a plurality of guiding holes have been seted up on the splint, the splint lateral surface is provided with a buffer board, the fixed guide post that is provided with a plurality of and guiding hole one-to-one of medial surface of buffer board, guide post sliding connection is in the guiding hole, the cover is equipped with reset spring on the guide post, buffer board and splint are connected respectively at reset spring's both ends.

In the transposition device for welding the steel member, when the strip-shaped slot is positioned under the synchronous rotating shaft, the two clamping plates are parallel to each other and vertical to the ground, and an inclination angle smaller than 10 degrees is formed between the guide groove and the horizontal plane.

In the transposition device for welding the steel member, the rotating shaft at the end part of the swing arm is connected with a roller, and the roller is abutted against the pressing plate.

The steel member installation and the welding process after installation are as follows: under the condition of ensuring that the ground is smooth, the end parts of two steel members to be welded are respectively placed at the two ends of the two rotating bodies, the servo motor is controlled to ensure that the strip-shaped slots on the rotating bodies are positioned under the synchronous rotating shaft, one end of each steel member is pushed to be inserted into the corresponding strip-shaped slot on the rotating body, observing the alignment condition of the welding ends of the two steel members in an operation area, ensuring that the welding ends are aligned to an ideal welding position through slight movement of the steel members on the ground, starting one linear motor to enable a clamping structure controlled by the linear motor to clamp the corresponding steel member, then the linear motor on the other rotating body is started to control the linear motor to advance, so that the two steel members are kept aligned and aligned, during the control of the second linear motor, the welding position is observed so that the unfixed steel member is slightly moved, and the two steel members are still kept aligned by appropriate fine adjustment. And welding the steel member, and adjusting the position of the strip-shaped slot on the rotating body by controlling the servo motor so as to facilitate welding, wherein in the process of rotating the rotating body, after the rotating body rotates forwards to a position close to the suspension arm, if the position needs to be adjusted continuously, the servo motor needs to be controlled reversely, so that the rotating body rotates reversely to the other side of the suspension arm.

Taking out the steel member: after the welding is completed, the servo motor is controlled, the strip-shaped slot is located at an initial position, namely, under the synchronous rotating shaft, the two linear motors are controlled to loosen the steel member after the welding is completed, and the steel member is pulled out after falling.

Compared with the prior art, the scheme has the advantages that:

1. the in-process of installation and taking out, the steel member all is located subaerial, and the required intensity of labour of installation and taking out is extremely low, sled the steel member slightly move can, need not external force equipment such as equipment of lifting by crane supplementary.

2. Because the steel member is located subaerial, correspond with it through seting up the bar slot that runs through the rotator global on the rotator, steady not have before the steel member centre gripping rocks, and the degree of difficulty of aligning welding position is extremely low.

3. Be less than 10 inclination between through setting up between guide way and the horizontal plane, and be provided with the telescopic buffer board on the splint, certain compressible space has between splint and the buffer board, after the buffer board contacts the steel member, the steel member continues to be pressed from both sides tightly, at this in-process, buffer clearance between splint and the buffer board can make the steel member vertically by the lifting certain distance, make the steel member produce the ground clearance, so that the smooth and easy rotation of rotator, if do not set up the inclination between guide way and the horizontal plane, can be through the mode at steel member bottom gasket, make to produce the ground clearance between steel member and the ground, so that the rotator is rotatory.

4. The action of two splint is synchronous, can ensure that the steel member is extruded to the middle part of bar slot, and two steel pipe fittings are in the synchronous that is being moved by the centre gripping in-process promptly to improve the alignment accuracy, reduce the construction degree of difficulty.

5. The biggest difference between this scheme and the prior art lies in: the ground is used as a reference surface, the moving difficulty of the steel member is reduced, the stability of the steel member before aligning the welding position is improved, two base plates are synchronously controlled to move, the two steel members to be welded are ensured to be adjusted in the positions before clamping, readjustment is generally not needed in the clamping process, the construction difficulty is reduced, the scheme does not need to assist external force equipment such as lifting equipment in the construction process, clamping and blanking are stable and reliable, and no construction potential safety hazard exists.

6. The rotator does not shake in the rotating process, and the coaxiality is high, so that the welding line cannot crack before the welding is finished.

Drawings

FIG. 1 is a schematic view of the construction of the index device.

Fig. 2 is a sectional view taken along a-a in fig. 1.

Fig. 3 is an enlarged view of a portion B in fig. 2.

In the figure, 1, a portal frame; 11. a body; 12. a suspension arm; 2. a servo motor; 3. a synchronous rotating shaft; 41. a rotating body; 42. a strip-shaped slot; 43. an installation port; 44. pressing a plate; 45. a linear motor; 46. a rotating rod; 47. a synchronizing gear; 48. a drum; 51. a guide groove; 52. a toothed plate; 53. swinging arms; 54. a rack; 55. limiting convex ribs; 56. a chain; 61. a splint; 62. a guide hole; 63. a buffer plate; 64. a guide post; 65. a return spring; 7. and (4) an operation area.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2 and 3, the transposition device comprises two portal frames 1, two positioning rotating mechanisms and a servo motor 2, wherein the body of the servo motor 2 is fixed on one of the portal frames 1, a synchronous rotating shaft 3 is rotatably connected between the two portal frames 1, one end of the synchronous rotating shaft 3 is connected with the output shaft of the servo motor 2, the two positioning rotating mechanisms are both arranged between the two portal frames 1, each positioning rotating mechanism comprises a cylindrical rotating body 41, a strip-shaped slot 42 penetrating through the peripheral surface of the rotating body 41 is formed in the rotating body 41, a gap for inserting a steel member is formed in the peripheral surface of the rotating body 41 by the strip-shaped slot 42, the rotating body 41 is fixed on the synchronous rotating shaft 3, the strip-shaped slot 42 is provided with a clamping structure capable of clamping the steel member inserted in the strip-shaped slot 42, the strip-shaped slots 42 of the two rotating bodies 41 are positioned on the same straight line, the strip-shaped slot 42 is parallel to the synchronous rotating shaft 3, and an operation area 7 convenient for welding the end part of the steel member is arranged between the two rotating bodies 41.

The portal frame 1 comprises an arched body 11, a suspension arm 12 extending towards the middle of the body 11 is fixedly arranged on the inner wall of the top of the body 11, and the synchronous rotating shaft 3 is rotatably connected to the suspension arm 12.

The clamping structure comprises a mounting opening 43 arranged in the middle of a rotating body 41, a pressing plate 44 is connected between two side walls of the mounting opening 43 in a sliding manner along the radial line direction of the rotating body 41, a linear motor 45 is arranged on one side of the pressing plate 44 far away from the synchronous rotating shaft 3, a machine shell of the linear motor 45 is fixed on the rotating body 41, a push rod of the linear motor 45 is fixed on the pressing plate 44, two pushing assemblies symmetrically distributed on two sides of a strip-shaped slot 42 are arranged in the rotating body 41, each pushing assembly comprises a rotating rod 46, two synchronous gears 47 respectively fixed at two ends of the rotating rod 46, a guide groove 51 penetrating through the side wall of the strip-shaped slot 42, a toothed plate 52 connected in the guide groove 51 in a sliding manner and a swing arm 53 fixed on the rotating rod 46, racks 54 capable of meshing with the two synchronous gears 47 are respectively arranged at two ends of the toothed plate 52, a clamping plate 61 positioned in the strip-shaped slot 42 is fixedly arranged at the inner end of the swing arm 53, one end of the swing arm 53 far away from the rotating rod 46 abuts against the side surface of the pressing plate 44 close to the synchronous rotating shaft 3, the end of the swing arm 53 remote from the rotating rod 46 is inclined in a direction away from the synchronizing shaft 3.

The rack 54 is disposed on one side surface of the tooth plate 52, the other side surface of the tooth plate 52 has a sliding slot, and the side wall of the guide slot 51 has a guide rail engaged with the sliding slot.

The two ends of the pressing plate 44 are respectively provided with a plurality of limiting grooves, and the rotating body 41 is provided with limiting convex ribs 55 matched with the limiting grooves.

A shell of the servo motor 2 is fixed to the top of one portal frame 1, a first chain wheel is fixedly arranged on an output shaft of the servo motor 2, a second chain wheel is fixedly arranged at one end of the synchronous rotating shaft 3, the first chain wheel and the second chain wheel are connected through a chain 56, and the chain 56 is located on the outer side of the suspension arm 12.

A plurality of guide holes 62 have been seted up on splint 61, splint 61 lateral surface is provided with a buffer board 63, and the fixed guide post 64 that is provided with a plurality of and the one-to-one of guide hole 62 of medial surface of buffer board 63, guide post 64 sliding connection are equipped with reset spring 65 in guide hole 62 on the guide post 64, and buffer board 63 and splint 61 are connected respectively to reset spring 65's both ends.

When the strip-shaped slot 42 is located right below the synchronous rotating shaft 3, the two clamping plates 61 are parallel to each other and vertical to the ground, and the guide groove 51 forms an inclination angle of less than 10 degrees with the horizontal plane.

The end of the swing arm 53 is pivotally connected to a roller 48, and the roller 48 abuts against the pressing plate 44.

The steel member installation and the welding process after installation are as follows: under the condition of ensuring that the ground is smooth, the end parts of two steel members to be welded are respectively placed at the two ends of two rotating bodies 41, a servo motor 2 is controlled, a strip-shaped slot 42 on the rotating body 41 is positioned under a synchronous rotating shaft 3, one end of each steel member is pushed to be inserted into the corresponding strip-shaped slot 42 on the rotating body 41, the alignment condition of the welding ends of the two steel members is observed in an operation area 7, the welding ends are ensured to be aligned to an ideal welding position through slight movement of the steel members on the ground, one linear motor 45 is started, a clamping structure controlled by the linear motor 45 clamps the corresponding steel member, then the linear motor 45 on the other rotating body 41 is started, the linear motor 45 is controlled to advance, the two steel members are kept aligned, the welding position is observed in the process of controlling the second linear motor 45, so that the unfixed steel members can be slightly moved, the two steel members are maintained in aligned alignment by appropriate fine adjustment. Welding steel components, and adjusting the position of the strip slot 42 on the rotating body 41 by controlling the servo motor 2 so as to facilitate welding, wherein after the rotating body 41 is rotated forward to a position close to the suspension arm 12 in the process of rotating, if the position needs to be adjusted continuously, the servo motor 2 needs to be controlled reversely, so that the rotating body 41 rotates reversely to the other side of the suspension arm 12.

Taking out the steel member: after the welding is finished, the servo motor 2 is controlled, the strip-shaped slot 42 is located at the initial position, namely, under the synchronous rotating shaft 3, the two linear motors 45 are controlled to loosen the steel member after the welding is finished, and the steel member is pulled out after falling.

The in-process of installation and taking out, the steel member all is located subaerial, and the required intensity of labour of installation and taking out is extremely low, sled the steel member slightly move can, need not external force equipment such as equipment of lifting by crane supplementary.

Because the steel member is located subaerial, through set up the bar slot 42 that runs through the global of rotator 41 on rotator 41 and correspond with it, steady no rocking before the steel member centre gripping, the degree of difficulty of aligning the welding position is extremely low.

Be less than 10 inclination through setting up between guide way 51 and the horizontal plane, and be provided with telescopic buffer board 63 on splint 61, certain compressible space has between splint 61 and the buffer board 63, after buffer board 63 contact steel member, the steel member continues to be pressed from both sides tightly, in-process, the buffer clearance between splint 61 and the buffer board 63 can make the steel member vertically by the lifting certain distance, make the steel member produce the ground clearance, so that rotator 41 is smooth and easy rotatory, if do not set up the inclination between guide way 51 and the horizontal plane, can be through the mode at steel member bottom gasket, make to produce the ground clearance between steel member and the ground, so that rotator 41 is rotatory.

The actions of the two clamping plates 61 are synchronous, so that the steel members can be extruded to the middle parts of the strip-shaped slots 42, namely the two steel members are synchronously moved in the clamping process, the alignment precision is improved, and the construction difficulty is reduced.

The biggest difference between this scheme and the prior art lies in: the ground is used as a reference surface, the moving difficulty of the steel member is reduced, the stability of the steel member before aligning the welding position is improved, two base plates are synchronously controlled to move, the two steel members to be welded are ensured to be adjusted in the positions before clamping, readjustment is generally not needed in the clamping process, the construction difficulty is reduced, the scheme does not need to assist external force equipment such as lifting equipment in the construction process, clamping and blanking are stable and reliable, and no construction potential safety hazard exists.

The rotating body 41 does not shake in the rotating process, and the coaxiality is high, so that the welding seam cannot crack before the welding is completed.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The transposition device for welding the steel members is characterized by comprising two portal frames (1), two positioning rotating mechanisms and a servo motor (2), wherein a machine body of the servo motor (2) is fixed on one portal frame (1), the two portal frames (1) are rotatably connected with a synchronous rotating shaft (3), one end of the synchronous rotating shaft (3) is connected with an output shaft of the servo motor (2), the two positioning rotating mechanisms are arranged between the two portal frames (1), each positioning rotating mechanism comprises a cylindrical rotating body (41), a strip-shaped slot (42) penetrating through the peripheral surface of the rotating body (41) is formed in the peripheral surface of the rotating body (41), the strip-shaped slot (42) forms a notch for inserting the steel members on the peripheral surface of the rotating body (41), and the rotating body (41) is fixed on the synchronous rotating shaft (3), the strip-shaped slots (42) are provided with clamping structures capable of clamping steel members inserted into the strip-shaped slots (42), the strip-shaped slots (42) of the two rotating bodies (41) are positioned on the same straight line, the strip-shaped slots (42) are parallel to the synchronous rotating shaft (3), and an operation area (7) convenient for welding the end parts of the steel members is arranged between the two rotating bodies (41);

the clamping structure comprises a mounting opening (43) arranged at the middle part of a rotating body (41), a pressing plate (44) is connected between two side walls of the mounting opening (43) in a sliding manner along the radial line direction of the rotating body (41), one side, far away from the synchronous rotating shaft (3), of the pressing plate (44) is provided with a linear motor (45), the rotating body (41) is fixed on a machine shell of the linear motor (45), a push rod of the linear motor (45) is fixed on the pressing plate (44), two propelling assemblies symmetrically distributed on two sides of a strip-shaped slot (42) are arranged in the rotating body (41), each propelling assembly comprises a rotating rod (46), two synchronous gears (47) respectively fixed at two ends of the rotating rod (46), a guide groove (51) penetrating through the side wall of the strip-shaped slot (42), a toothed plate (52) connected in the guide groove (51) in a sliding manner and a swing arm (53) fixed on the rotating rod (46), the both ends of pinion rack (52) have respectively can with two rack (54) of synchronizing gear (47) meshing, the fixed splint (61) that are located bar slot (42) that are provided with in inner of swing arm (53), swing arm (53) are kept away from the one end of bull stick (46) and are supported and lean on clamp plate (44) are close to the side of synchronous pivot (3) one side, swing arm (53) are kept away from the one end of bull stick (46) and are leaned on to the direction of keeping away from synchronous pivot (3).

2. An index device for steel member welding according to claim 1, characterized in that the portal frame (1) comprises an arched body (11), a boom (12) extending to the middle of the body (11) is fixedly arranged on the top inner wall of the body (11), and the synchronous rotating shaft (3) is rotatably connected to the boom (12).

3. A transposition device for welding steel members according to claim 2, wherein the rack (54) is provided on one side surface of the toothed plate (52), the other side surface of the toothed plate (52) has a sliding slot, and the side wall of the guide slot (51) has a guide rail engaged with the sliding slot.

4. The transposition device for welding steel members according to claim 1, wherein the pressing plate (44) has a plurality of limiting grooves at both ends thereof, and the rotating body (41) has limiting ribs (55) adapted to the limiting grooves.

5. The steel member welding transposition device according to claim 1, characterized in that the housing of the servo motor (2) is fixed on the top of one portal frame (1), the output shaft of the servo motor (2) is fixedly provided with a first chain wheel, one end of the synchronous rotating shaft (3) is fixedly provided with a second chain wheel, the first chain wheel and the second chain wheel are connected through a chain (56), and the chain (56) is positioned on the outer side of the suspension arm (12).

6. The transposition device for welding the steel members according to claim 3, wherein a plurality of guide holes (62) are formed in the clamping plate (61), a buffer plate (63) is arranged on the outer side surface of the clamping plate (61), a plurality of guide posts (64) corresponding to the guide holes (62) in a one-to-one manner are fixedly arranged on the inner side surface of the buffer plate (63), the guide posts (64) are slidably connected in the guide holes (62), a return spring (65) is sleeved on each guide post (64), and two ends of each return spring (65) are respectively connected with the buffer plate (63) and the clamping plate (61).

7. An exchange device for welding of steel members according to claim 6, characterized in that when the strip-shaped slots (42) are located directly under the synchronizing shaft (3), the two clamping plates (61) are parallel to each other and perpendicular to the ground, and the guide grooves (51) are inclined at an angle of less than 10 ° to the horizontal.

8. An indexing device for steel member welding according to claim 1, characterized in that a roller (48) is connected to the end rotating shaft of the swing arm (53), and the roller (48) is abutted against the pressing plate (44).