CN116532903A

CN116532903A - Clamp for laser welding tubular piece

Info

Publication number: CN116532903A
Application number: CN202310776195.8A
Authority: CN
Inventors: 黄根哲; 刘超杰; 王东旭; 白頔; 杨丽
Original assignee: Changchun University of Science and Technology
Current assignee: Changchun University of Science and Technology
Priority date: 2023-06-28
Filing date: 2023-06-28
Publication date: 2023-08-04

Abstract

The invention belongs to the field of laser welding and discloses a tubular part clamp for laser welding, which comprises a base, wherein a supporting leg is fixedly arranged on the base, a driving motor is fixedly arranged on one side of the supporting leg, a first through hole is formed in the upper part of the supporting leg, a rotating shaft is rotatably arranged in the first through hole, a first bevel gear is fixedly arranged at one end of the rotating shaft, a second bevel gear is arranged on one side of the first bevel gear in a meshed fit manner, a positioning plate is fixedly arranged in the middle of the rotating shaft, a guide disc is fixedly arranged at one side of the positioning plate, a second through hole is formed in the center of the guide disc, and the clamping effect on a pipe fitting can be improved through the clamp.

Description

Clamp for laser welding tubular piece

Technical Field

The invention belongs to the field of laser welding, and particularly relates to a clamp for laser welding tubular parts.

Background

Laser welding is a highly efficient and precise welding method that uses a laser beam of high energy density as a heat source. The laser is developed rapidly in the manufacturing industry, the efficiency of the laser welding technology is high, the processing range is wide, but the uncontrollable factors of laser automatic welding are more, the welding quality is not easy to control, most of the welding of the existing tubular workpieces are performed by a laser welding gun along the opposite joint, and the welding process is not stable enough. Meanwhile, a three-grab chuck is usually adopted for clamping in the clamping process, so that the clamp is not applicable to large-size pipes, and the pipes are easy to damage in the clamping process, so that the actual requirements cannot be met, and a clamp for laser welding the pipe fittings is newly designed.

Disclosure of Invention

In order to solve the above-mentioned shortcomings in the prior art, an object of the present invention is to provide a laser welding tubular member fixture, which solves the problems mentioned in the background art.

The technical scheme adopted for solving the technical problems of the clamp for the laser welding of the tubular piece is as follows:

the utility model provides a laser welding tubular part anchor clamps, the on-line screen storage device comprises a base, fixed mounting supporting leg on the base, one side fixed mounting driving motor of supporting leg, first through-hole is seted up on the upper portion of supporting leg, first through-hole internal rotation installation pivot, the first helical gear of one end fixed mounting of pivot, one side meshing cooperation of first helical gear is equipped with the second helical gear, the middle part fixed mounting locating plate of pivot, one side fixed mounting guide disc of locating plate, the second through-hole is seted up at the center of guide disc, set up the direction that passes the locating plate on the guide disc and pass through the groove, correspond the direction spout that corresponds is offered respectively to the direction on the supporting leg, direction is passed through the inslot and is equipped with the connecting rod, the one end fixed connection clamping piece of connecting rod, the other end of connecting rod inserts respectively in the direction spout that corresponds and only can slide in the direction spout that corresponds.

Further, the second bevel gear is provided with a third bevel gear in meshed fit, one side of the third bevel gear is fixedly provided with a first handle, the motor is fixedly provided with a shaft seat, and the first handle is rotatably arranged in the shaft seat.

Further, supporting leg, driving motor, pivot, first helical gear, second helical gear, locating plate, guide disc, connecting rod, clamp block, third helical gear, first handle all bilateral symmetry set up two sets.

Further, the supporting leg include the lower supporting leg, the lower extreme of lower supporting leg is fixed mounting respectively on the base, the upper end of lower supporting leg is fixed mounting slide rail respectively, cooperation installation slider respectively in the slide rail, one side in the slide rail is fixed mounting nut respectively, threaded mounting bolt respectively in the nut, the one end of bolt rotates with corresponding slider through the bearing respectively and is connected, fixed mounting goes up the supporting leg respectively on the slider, first through-hole and direction spout all are located corresponding last supporting leg.

Further, the base on set up the spout, two electric putter of sliding mounting in the spout, electric putter's top fixed mounting lifts the frame, lifts and sets up a plurality of rotation grooves on the frame, every rotates the inslot and rotates to be equipped with the rotation pipe correspondingly, electric putter's lower part screw thread cooperation installation lead screw, the screw left and right sides screw thread is rotated to opposite, the lead screw passes through the bearing and rotates to be installed on the base.

Further, one end of the screw rod is fixedly provided with a second handle.

Further, friction lines are respectively formed on the periphery of the clamping blocks.

Compared with the prior art, the invention has the beneficial effects that:

1. the clamp for the tubular part by laser welding disclosed by the invention has the advantages that the structure is simple, the conception is ingenious, the clamping is realized from the inside of the tubular part, the clamping mode is more stable, meanwhile, the clamping force is applied by the clamping device in a self-adaptive manner according to the weight of the tubular part, the tubular part is not easy to damage, the market demand can be met, and the clamp is suitable for popularization. When the pipe fitting welding device is used, a pipe fitting to be welded is sleeved on the guide disc, the end part of the pipe fitting is propped against the positioning plate, the driving motor is turned on, the driving motor drives the rotating shaft to rotate by driving the second bevel gear and the first bevel gear, the rotating shaft rotates to drive the guide disc to relatively rotate relative to the connecting rod, the connecting rod drives the clamping block to slide outwards along the guide groove, when the clamping block is propped against the inner wall of the pipe fitting, the clamping block cannot continuously slide along the guide groove, at the moment, the rotating shaft drives the positioning plate, the guide disc, the clamping block and the welded pipe fitting to synchronously rotate, after welding is finished, the driving motor reversely rotates, and the guide disc has a reverse movement trend to the connecting rod, the connecting rod drives the clamping block to reversely slide along the guide groove, the clamping block contracts, the clamping force disappears, and the welded pipe fitting is taken down, so that the clamping effect on the pipe fitting can be improved, the clamping is more stable, and damage to the pipe fitting is not easy to occur during clamping.

2. According to the clamp for the laser welding tubular part, when the welding pipe fitting is installed and disassembled, the handle can be manually rotated, the handle drives the second bevel gear and the first bevel gear to rotate, the first bevel gear drives the rotating shaft to rotate, and the rotating shaft drives the positioning plate and the guide plate to rotate, so that the clamping block is driven to slide along the guide through groove, and pre-clamping and post-welding unloading force is realized.

3. According to the clamp for the tubular part by laser welding, provided by the invention, the clamping devices are arranged in two sets, so that two tubular parts can be clamped simultaneously, and butt welding of the two tubular parts is realized.

4. According to the clamp for welding the tubular part by the laser, when two pipes are required to be welded, the bolts are rotated, so that the sliding blocks can be driven to move, the upper supporting legs are driven to move, the two pipes are conveniently aligned when the two pipes are welded, and the guide disc is conveniently moved out of the tubular part by moving the upper supporting legs after the welding is finished.

5. According to the clamp for the laser welding tubular piece, the screw rod is rotated, and the screw threads on the left side and the right side of the screw rod are opposite in rotation direction, so that the screw rod drives the two electric push rods to do opposite or opposite movement, and then the height of the electric push rods is adjusted, so that the lifting frame is in contact with the bottom surface of the welding circular tube, and the welding process is more stable.

6. According to the clamp for the tubular part welded by the laser, disclosed by the invention, the rotation of the screw rod can be more labor-saving through the second handle.

7. According to the clamp for the tubular part welded by the laser, disclosed by the invention, the clamping force of the clamping block can be improved through friction lines, and the slipping in the clamping process is prevented.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a view in the direction A of FIG. 1;

FIG. 3 is an enlarged view of part of I of FIG. 1;

fig. 4 is an enlarged view of part ii of fig. 1.

In the figure: 1. a base; 2. support legs; 3. a driving motor; 4. a first through hole; 5. a rotating shaft; 6. a first helical gear; 7. a second helical gear; 8. a positioning plate; 9. a guide disc; 10. a guide penetration groove; 11. a connecting rod; 12. a clamping block; 13. a second through hole; 14. a guide chute; 15. a lower support leg; 16. a slide rail; 17. a slide block; 18. a nut; 19. a bolt; 20. a third bevel gear; 21. a first handle; 22. a shaft seat; 23. an upper support leg; 40. a chute; 41. an electric push rod; 42. a lifting frame; 43. a rotating groove; 44. a rotary tube; 45. a screw rod; 46. a second handle.

Detailed Description

The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the invention are shown in the drawings.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1, fig. 2 and fig. 3, a tubular piece clamp for laser welding comprises a base 1, a supporting leg 2 is fixedly installed on the base 1, a driving motor 3 is fixedly installed on one side of the supporting leg 2, a first through hole 4 is formed in the upper portion of the supporting leg 2, a rotating shaft 5 is rotatably installed in the first through hole 4, the periphery of the rotating shaft 5 is rotatably connected with the inner periphery of the first through hole 4 through a bearing, a first bevel gear 6 is fixedly installed at one end of the rotating shaft 5, the first bevel gear 6 is coaxial with the rotating shaft 5, a second bevel gear 7 is arranged in an engaged fit manner at one side of the first bevel gear 6, the second bevel gear 7 is fixedly and coaxially installed on an output shaft of the driving motor 3, a positioning plate 8 is fixedly installed at the middle part of the rotating shaft 5, a positioning plate 8 is fixedly installed at one side of the positioning plate 8 fixedly installed with the rotating shaft 5, a second through hole 13 is formed in the center of the guiding plate 9, the periphery of the rotating shaft 5 is fixedly connected with the inner periphery of the second through hole 13, a guiding through groove 10 penetrating through the positioning plate 8 is formed in the guiding plate 9, corresponding guiding grooves 10 are formed in the supporting leg 2, corresponding guiding grooves 14 are formed in the supporting leg 2 respectively, corresponding guiding grooves 10 are formed in the guiding grooves 11, corresponding guiding grooves 11 are formed in the guiding grooves 11, the guiding grooves 11 are formed in the guiding grooves 11 are in the guiding grooves 11, the guiding grooves 11 are capable of being fixedly and the other end of the connecting rod can be correspondingly connected with one end of a connecting rod in a shape and can be fixedly clamped by corresponding connecting rod 11 in a shape in a sliding mode, and the shape, and the other end 11 can be fixedly inserted in the shape. The clamping device is simple in structure and ingenious in conception, the clamping is realized from the inside of the pipe fitting, the clamping mode is more stable, meanwhile, the clamping device applies the clamping force in a self-adaptive mode according to the weight of the pipe fitting, the pipe fitting is not easy to damage, the market demand can be met, and the clamping device is suitable for popularization. When the pipe fitting welding device is used, a pipe fitting to be welded is sleeved on the guide disc 9, the end part of the pipe fitting props against the positioning plate 8, the driving motor 3 is turned on, the driving motor 3 drives the second bevel gear 7 and the first bevel gear 6 to rotate, the rotating shaft 5 is driven to rotate, the rotating shaft 5 drives the guide disc 9 to rotate relative to the connecting rod 11, the connecting rod 11 drives the clamping block 12 to slide outwards along the guide groove 10, when the clamping block 12 props against the inner wall of the pipe fitting, the clamping block 12 cannot slide continuously along the guide groove 10, at the moment, the rotating shaft 5 drives the positioning plate 8, the guide disc 9, the clamping block 12 and the welded pipe fitting to synchronously rotate, after welding is finished, the driving motor 3 reversely rotates, and the same time, the guide disc 9 has a reverse motion trend for the connecting rod 11, the clamping block 12 reversely slides along the guide groove 10, the clamping block 12 contracts, the clamping force disappears, and the welded pipe fitting is taken down, the clamping effect can be improved from the inside the pipe fitting, so that the clamping is more stable, and the pipe fitting is not easy to damage during clamping.

As shown in fig. 1, 2 and 3, it is further preferable that the second bevel gear 7 is provided with a third bevel gear 20 in a meshed fit, a first handle 21 is fixedly installed on one side of the third bevel gear 20, the first handle 21 is coaxial with the third bevel gear 20, a shaft seat 22 is fixedly installed on the motor 3, and the first handle 21 is rotatably installed in the shaft seat 22. When the welding pipe fitting is installed and detached, the handle 21 can be manually rotated, the handle 21 drives the second bevel gear 7 and the first bevel gear 6 to rotate, the first bevel gear 6 drives the rotating shaft 5 to rotate, the rotating shaft 5 drives the positioning plate 8 and the guide plate 9 to rotate, and accordingly the clamping block 12 is driven to slide along the guide through groove 10, and pre-clamping and post-welding unloading force is achieved.

As shown in fig. 1, 2 and 3, it is further preferable that the supporting leg 2, the driving motor 3, the rotating shaft 5, the first bevel gear 6, the second bevel gear 7, the positioning plate 8, the guiding disc 9, the connecting rod 11, the clamping block 12, the third bevel gear 20 and the first handle 21 are all symmetrically arranged in two sets. The clamping device is provided with two sets, so that two pipes can be clamped simultaneously, and butt welding of the two pipes is realized.

As shown in fig. 1, 2 and 3, it is further preferable that the supporting leg 2 includes a lower supporting leg 15, the lower ends of the lower supporting leg 15 are respectively and fixedly installed on the base 1, the upper ends of the lower supporting leg 15 are respectively and fixedly installed with sliding rails 16, sliding rails 16 are respectively and cooperatively installed with sliding blocks 17, one sides in the sliding rails 16 are respectively and fixedly installed with nuts 18, the nuts 18 are respectively and threadedly installed with bolts 19, one ends of the bolts 19 are respectively and rotatably connected with the corresponding sliding blocks 17 through bearings, the upper supporting legs 23 are respectively and fixedly installed on the sliding blocks 17, and the first through holes 4 and the guide sliding grooves 14 are both located on the corresponding upper supporting legs 23. When two-pipe butt welding is needed, the sliding block 17 can be driven to move by rotating the bolt 19, and then the upper supporting leg 23 is driven to move, so that the two pipes are conveniently aligned when the two-pipe butt welding is finished, and the guide disc 9 is conveniently moved out of the pipe fitting by moving the upper supporting leg 23 after the welding is finished.

As shown in fig. 1 and 4, it is further preferable that the base 1 is provided with a chute 40, two electric push rods 41 are slidably mounted in the chute 40, the electric push rods 41 can slide left and right in the chute 40, a lifting frame 42 is fixedly mounted at the top of each electric push rod 41, the lifting frame 42 is arc-shaped, a plurality of rotating grooves 43 are formed in the lifting frame 42, a rotating tube 44 is correspondingly arranged in each rotating groove 43 in a rotating manner, the top side of the rotating tube 44 is higher than the inner wall of the rotating groove 43, two ends of the rotating tube 44 are rotatably mounted on the lifting frame 42 through bearings, a screw 45 is mounted on the lower portion of each electric push rod 41 in a threaded fit manner, threads on the left side and the right side of each screw 45 are opposite in rotation direction, and the screw 45 is rotatably mounted on the base 1 through bearings. Through rotating lead screw 45, because the screw threads on the left side and the right side of lead screw 45 rotate in opposite directions, lead screw 45 drives two electric push rods to do opposite or opposite movement, and then the height of the electric push rods is adjusted, so that lifting frame 42 contacts the bottom surface of the welding round tube, and the welding process is more stable.

As shown in fig. 1 and 4, it is further preferable that one end of the screw 45 is fixedly attached to the second handle 46. The rotation of the screw 45 can be made more labor-saving by the second handle 46.

As shown in fig. 1, 2 and 3, it is further preferable that the outer circumferences of the clamping blocks 12 are respectively provided with friction lines. The friction lines can improve the clamping force of the clamping block 12 and prevent slipping in the clamping process.

The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the invention referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the invention. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.

Other technical features besides those described in the specification are known to those skilled in the art, and are not described herein in detail to highlight the innovative features of the present invention.

Claims

1. The utility model provides a laser welding tubular part anchor clamps, including base (1), characterized by, fixed mounting supporting leg (2) on base (1), one side fixed mounting driving motor (3) of supporting leg (2), first through-hole (4) are seted up on the upper portion of supporting leg (2), first through-hole (4) internal rotation installation pivot (5), one end fixed mounting first helical gear (6) of pivot (5), one side meshing cooperation of first helical gear (6) is equipped with second helical gear (7), middle part fixed mounting locating plate (8) of pivot (5), one side fixed mounting guide disc (9) of locating plate (8), second through-hole (13) are seted up at the center of guide disc (9), set up on guide disc (9) and pass guide through groove (10) of locating plate (8), corresponding guide spout (14) are seted up on supporting leg (2) respectively, guide through-groove (10) are equipped with connecting rod (11), one end fixed connection clamp block (12) of connecting rod (11), the other end of connecting rod (11) inserts respectively in corresponding guide spout (14) and can only slide in corresponding guide spout (14).

2. A fixture for laser welding tubular members according to claim 1, characterized in that said second bevel gear (7) is provided with a third bevel gear (20) in engagement with each other, a first handle (21) is fixedly mounted on one side of said third bevel gear (20), a shaft seat (22) is fixedly mounted on said motor (3), and said first handle (21) is rotatably mounted in said shaft seat (22).

3. The clamp for the laser welding of the tubular piece according to claim 2, wherein two sets of supporting legs (2), a driving motor (3), a rotating shaft (5), a first bevel gear (6), a second bevel gear (7), a positioning plate (8), a guide disc (9), a connecting rod (11), a clamping block (12), a third bevel gear (20) and a first handle (21) are symmetrically arranged on the left and right sides.

4. The laser welding tubular member clamp according to claim 1, wherein the supporting leg (2) comprises a lower supporting leg (15), the lower ends of the lower supporting legs (15) are respectively fixedly installed on the base (1), sliding rails (16) are respectively fixedly installed at the upper ends of the lower supporting legs (15), sliding blocks (17) are respectively installed in a matched mode on the sliding rails (16), nuts (18) are respectively fixedly installed on one sides in the sliding rails (16), bolts (19) are respectively installed on one sides in the nuts (18) in a threaded mode, one ends of the bolts (19) are respectively connected with the corresponding sliding blocks (17) in a rotating mode through bearings, upper supporting legs (23) are respectively fixedly installed on the sliding blocks (17), and the first through holes (4) and the guide sliding grooves (14) are both located on the corresponding upper supporting legs (23).

5. The laser welding tubular part clamp according to claim 1, wherein a sliding groove (40) is formed in the base (1), two electric pushing rods (41) are installed in the sliding groove (40) in a sliding mode, a lifting frame (42) is fixedly installed at the top of each electric pushing rod (41), a plurality of rotating grooves (43) are formed in each lifting frame (42), a rotating pipe (44) is correspondingly arranged in each rotating groove (43) in a rotating mode, a screw rod (45) is installed on the lower portion of each electric pushing rod (41) in a threaded mode in a matching mode, threads on the left side and the right side of each screw rod (45) are opposite in rotation direction, and each screw rod (45) is installed on the base (1) in a rotating mode through a bearing.

6. A laser welded tubular article clamp according to claim 5, characterized in that one end of the screw (45) is fixedly fitted with a second handle (46).

7. A laser welded tubular article clamp according to claim 1, wherein the outer circumferences of the clamping blocks (12) are respectively provided with friction lines.