Circumferential welding auxiliary overturning clamp
Technical Field
The utility model belongs to the technical field of clamp equipment, and particularly relates to an auxiliary overturning clamp for circumferential welding.
Background
When circumferential welding tubular workpieces and the like, the workpieces are often required to be positioned and turned by means of a clamp in an auxiliary manner.
In the circumferential welding process of the workpiece, manual holding of the welding equipment is often needed to move along the circumferential direction of the workpiece to realize circumferential overturning welding of the workpiece, the mode of realizing circumferential overturning welding by means of the welding equipment is needed to repeatedly move the position of a worker to realize circumferential welding of the workpiece, and the steps are complicated and unstable, so that the auxiliary overturning clamp for circumferential welding is provided to solve the problems based on the defects.
Disclosure of Invention
Aiming at the problems that the prior art needs a worker to repeatedly move the position to realize the circumferential overturning welding of the workpiece when the prior equipment performs the circumferential welding of the workpiece, the steps are complicated and unstable, the utility model provides the circumferential welding auxiliary overturning clamp, which can realize the circumferential overturning welding of the workpiece by utilizing the intermittent rotation of the workpiece on the premise of ensuring the positions of the worker and the welding equipment to be unchanged, so that the circumferential welding of the workpiece is more stable and reliable without manual position movement, and the steps of the mode are simpler. The specific technical scheme is as follows:
the utility model provides a supplementary upset anchor clamps of circumference welding, includes the workstation and install in the support frame of workstation bottom, the link is installed to the support frame bottom, the link top is provided with intermittent type nature mechanism, intermittent type nature mechanism top is provided with fixture, intermittent type nature mechanism including install in the motor of link bottom, the motor output is connected with the connecting rod, just the connecting rod with workstation outer wall bottom rotates to be connected, spacing dish and actuating lever are installed respectively to the connecting rod outer wall, just spacing dish is located the top of actuating lever, the actuating pin is installed in the actuating lever outer wall outside, the workstation outer wall is provided with the bull stick from top to bottom running through, the sheave is installed to the bull stick outer wall, a plurality of recesses have been seted up along circumference to the sheave outer wall, just the actuating pin rotate embedded in the recess inner chamber that the sheave outer wall was seted up, spacing dish outer wall with the sheave outer wall laminating mutually, bull stick outer wall top with fixture is connected.
In the above technical scheme, fixture is including removing clamping member and fixed clamping member, remove the clamping member including install in the seat of accepting on bull stick top, accept the seat top and install the roof-rack, the cylinder is installed on the roof-rack top, the cylinder output is connected with the mount pad, the mount pad pass through sliding component with the inboard sliding connection of roof-rack outer wall, the mount pad inner wall rotates and is connected with the screw rod, screw rod outer wall left and right sides threaded connection has the movable block respectively, just the movable block slip in the inner chamber of mount pad, the movable plate is installed to movable block outer wall bottom, the clamping jaw is installed to the movable plate inboard, the inboard top work piece that presss from both sides of clamping jaw outer wall, screw rod outer wall mid-mounting has the worm wheel, the worm wheel outer wall meshing is connected with the worm, just worm one end with the mount pad inner wall rotates to be connected, the worm opposite side extends forward the outer wall of mount pad, the hand wheel is installed to the worm opposite side.
In the technical scheme, the directions of threads arranged on the left side and the right side of the outer wall of the screw are opposite.
In the above technical scheme, the sliding component comprises sliding grooves respectively arranged on the left side and the right side of the inner wall of the top frame, a sliding block is embedded in the sliding groove in a sliding manner, and the sliding block is connected with the outer wall of the mounting seat.
In the above technical scheme, the fixed clamping member comprises a positioning base arranged at the top end of the bearing seat, a positioning groove is formed in the top end of the positioning base, and a bottom workpiece is embedded in an inner cavity of the positioning groove.
In the technical scheme, the central axis of the positioning groove coincides with the central axis of the middle distance between the two clamping jaws.
In the above technical scheme, the socket with be provided with supplementary rotation subassembly between the workstation, supplementary rotation subassembly including set up in along circumference the spacing groove on workstation outer wall top, spacing groove inner chamber roll embedded has the gyro wheel, just the gyro wheel rotate connect in the outer wall bottom of socket.
Compared with the prior art, the circumferential welding auxiliary overturning clamp has the beneficial effects that:
1. aiming at the problems that when the existing equipment performs circumferential welding of a workpiece, workers are required to repeatedly move positions to achieve circumferential overturning welding of the workpiece, steps are complicated and unstable, the intermittent rotation of the workpiece is utilized to achieve circumferential overturning welding of the workpiece on the premise that the positions of the workers and the welding equipment are unchanged, so that the circumferential welding of the workpiece is more stable and reliable, the mode steps of manually moving the positions are simpler, two clamping jaws can be driven to clamp and position the top workpiece through the cooperation of a hand wheel, a worm wheel, a screw rod, a moving block and a moving plate, the positioning of the bottom workpiece can be achieved through a positioning base and a positioning groove, centering of the top workpiece and the bottom workpiece is achieved, the intermittent rotation of a grooved wheel and the rotating rod can be driven by the cooperation of a motor, a connecting rod, a limiting disc, a driving rod and a driving pin, and the intermittent rotation of the top workpiece and the bottom workpiece after the rotating rod drives a bearing seat and a top fixed position are achieved, and the circumferential welding equipment can achieve circumferential intermittent welding of the top workpiece and the bottom workpiece which are intermittently rotated by the workers and the welding equipment with the same cooperation position;
2. the clamping and positioning device can realize clamping and positioning of top workpieces with different diameters, so that the application range of the device is wider, the positioning and welding requirements of the different diameters are met, the screw rod can be driven to rotate by means of the hand wheel, the worm and the worm wheel, the two clamping jaws can move inwards simultaneously by the screw rod, the moving block, the moving plate and the clamping jaws, and the positioning of the top workpieces is realized, namely, the positioning of the top workpieces with different diameters can be realized by adjusting the distance between the two clamping jaws;
on the premise that the positions of workers and welding equipment are unchanged, the intermittent rotation of the workpieces is utilized to realize circumferential overturning welding of the workpieces, so that the circumferential welding of the workpieces is more stable and reliable, the steps of a mode of manually moving the positions are not needed to be simpler, clamping and positioning of the top workpieces with different diameters can be realized, the application range of the equipment is wider, and the positioning and welding requirements of the different diameters are met.
Drawings
FIG. 1 is a front view of a circumferential welding assist rollover fixture in accordance with an embodiment of the present utility model;
FIG. 2 is a front cross-sectional view of a circumferential welding auxiliary turning jig according to an embodiment of the present utility model;
FIG. 3 is a partial front cross-sectional view of a circumferential weld assist upset clamp in accordance with an embodiment of the present utility model;
FIG. 4 is a top view of a spacing disc of a circumferential welding auxiliary turnover fixture according to an embodiment of the present utility model;
in fig. 1 to 4, 1, a workbench, 2, a supporting frame, 3, a connecting frame, 4, a motor, 5, a connecting rod, 6, a limiting disc, 7, a driving rod, 8, a driving pin, 9, a rotating rod, 10, a grooved pulley, 11, a bearing seat, 12, a top frame, 13, a cylinder, 14, a mounting seat, 15, a sliding groove, 16, a sliding block, 17, a screw, 18, a moving block, 19, a moving plate, 20, a clamping jaw, 21, a worm wheel, 22, a worm, 23, a hand wheel, 24, a positioning base, 25, a positioning groove, 26, a top workpiece, 27, a bottom workpiece, 28, a limiting groove, 29 and a roller.
Detailed Description
The utility model will be further described with reference to specific embodiments and figures 1-4, but the utility model is not limited to these embodiments.
Examples
As shown in fig. 1-4, an auxiliary turnover clamp for circumferential welding is used for auxiliary turnover clamping when workpieces are welded circumferentially, and comprises a workbench 1 and a support frame 2 arranged at the bottom end of the workbench 1, wherein a connecting frame 3 is arranged at the bottom end of the support frame 2, the stability of the workbench 1 is realized under the action of the connecting frame 3 and the support frame 2, an intermittent mechanism is arranged at the top end of the connecting frame 3, the top end of the intermittent mechanism is provided with a clamping mechanism, the clamping mechanism can be driven to rotate intermittently together through the intermittent mechanism so as to realize the intermittent circumferential rotation of the clamped workpieces together through the intermittent mechanism, the intermittent mechanism comprises a motor 4 arranged at the bottom end of the connecting frame 3, the motor 4 is conventional equipment which can meet the use requirement, the model of the intermittent mechanism is not limited, the output end of the motor 4 is connected with a connecting rod 5, the connecting rod 5 is connected with the bottom end of the outer wall of the workbench 1 through a bearing in a rotating way, the opened motor 4 can drive the connecting rod 5 to rotate together, the limiting disc 6 and the driving rod 7 are respectively arranged on the outer wall of the connecting rod 5, the limiting disc 6 is positioned at the top end of the driving rod 7, the rotating connecting rod 5 can drive the limiting disc 6 and the driving rod 7 to rotate together, the driving pin 8 is arranged on the outer side of the outer wall of the driving rod 7, the driving pin 8 can be driven to rotate together by means of the rotating driving rod 7, the rotating rod 9 penetrates through the outer wall of the workbench 1 from top to bottom, the grooved pulley 10 is arranged on the outer wall of the rotating rod 9, three grooves are formed in the outer wall of the grooved pulley 10 along the circumferential direction, the driving pin 8 is rotationally embedded in the groove cavity formed in the outer wall of the grooved pulley 10, the grooved pulley 10 can be driven to rotate together by means of the driving pin 8, the outer wall of the limiting disc 6 is attached to the outer wall of the grooved pulley 10, when the driving pin 8 is separated from the groove cavity of the outer wall of the grooved pulley 10, the grooved pulley 10 can realize stable and continuous rotation under the action of the limiting disc 6, so that intermittent stable rotation of the grooved pulley 10 is realized, the top end of the outer wall of the rotating rod 9 is connected with the clamping mechanism, intermittent rotation is performed through the grooved pulley 10, the rotating rod 9 and the clamping mechanism can be driven to perform intermittent rotation together, and circumferential welding of a workpiece can be realized by matching with welding equipment at the front side of the equipment;
in the above preferred technical solution of this embodiment, the steps for realizing intermittent rotation of the rotating rod 9 are as follows: the opened motor 4 drives the connecting rod 5, the limiting disc 6 and the driving rod 7 to rotate together, so that the driving pin 8 on the outer wall of the driving rod 7 is driven to rotate together, and when the driving pin 8 rotates and is embedded into the inner cavity of the groove on the outer wall of the grooved pulley 10, the driving pin 8 which continuously rotates can drive the grooved pulley 10 to rotate together, so that the rotating rod 9 is driven to rotate along the circumferential direction; when the driving pin 8 rotates to be separated from the groove inner cavity of the outer wall of the grooved pulley 10, the limiting disc 6 is attached to the outer wall of the grooved pulley 10 at the moment, so that the grooved pulley 10 stops rotating at the moment; the continuously rotating driving pin 8 can drive the grooved pulley 10 to intermittently rotate in the next period, when the grooved pulley 10 and the rotating rod 19 are stable in position, welding can be achieved by means of front side welding equipment, the grooved pulley 10 and the rotating rod 19 which rotate after welding enable top workpieces to rotate together, further the workpiece is enabled to be welded in the next period towards the front side, and circumferential welding of the workpieces is achieved in a reciprocating mode.
The clamping mechanism comprises a movable clamping member and a fixed clamping member, the movable clamping member comprises a bearing seat 11 arranged at the top end of a rotating rod 9, a top frame 12 is arranged at the top end of the bearing seat 11, an air cylinder 13 is arranged at the top end of the top frame 12, the air cylinder 13 is a self-locking air cylinder, the output end of the air cylinder can be self-locked at any position and stable, the model of the air cylinder is not limited, the output end of the air cylinder 13 is connected with a mounting seat 14, the mounting seat 14 can be driven to rotate together when the air cylinder 13 is opened, the mounting seat 14 is in sliding connection with the inner side of the outer wall of the top frame 12 through a sliding component, the sliding component comprises sliding grooves 15 respectively arranged at the left side and the right side of the inner wall of the top frame 12, a sliding block 16 is embedded in the inner cavity of the sliding groove 15, the sliding block 16 is connected with the outer wall of the mounting seat 14, and when the opened air cylinder 13 drives the mounting seat 14 to move downwards, the sliding block 16 can be driven to move along the inner cavity of the sliding groove 15 so as to realize stable lifting movement of the mounting seat 14; the inner wall of the mounting seat 14 is rotationally connected with a screw rod 17 through a bearing, the left side and the right side of the outer wall of the screw rod 17 are respectively connected with a moving block 18 in a threaded manner, the directions of threads arranged on the left side and the right side of the outer wall of the screw rod 17 are opposite, and the rotating screw rod 17 can drive the two moving blocks 18 to move inwards together; the moving block 18 is embedded in the inner cavity of the mounting seat 14 in a sliding manner, the bottom end of the outer wall of the moving block 18 is provided with a moving plate 19, the inner side of the moving plate 19 is provided with a clamping jaw 20, the moving plate 19 and the clamping jaw 20 can be driven to move inwards together by means of the moving block 18, a top workpiece 26 is clamped on the inner side of the outer wall of the clamping jaw 20, the clamping and positioning of the top workpiece 26 can be realized by means of the two clamping jaws 20, a worm wheel 21 is arranged in the middle of the outer wall of the screw 17, the outer wall of the worm wheel 21 is connected with a worm 22 in a meshed manner, one end of the worm 22 is rotatably connected with the inner wall of the mounting seat 14 through a bearing, the rotation of the worm wheel 21 can be realized by means of the rotation of the worm 22, the other side of the worm 22 extends out of the outer wall of the mounting seat 14, the other side of the worm 22 is provided with a hand wheel 23, and the worm 22 can be driven to rotate by driving the hand wheel 23 so as to drive the worm wheel 21 to drive the screw 17 to rotate together; the fixed clamping member comprises a positioning base 24 arranged at the top end of the bearing seat 11, a positioning groove 25 is formed in the top end of the positioning base 24, a bottom workpiece 27 is embedded in the inner cavity of the positioning groove 25, and centering and positioning of the top workpiece 26 and the bottom workpiece 27 can be achieved by means of the positioning groove 25; the central axis of the positioning groove 25 coincides with the central axis of the middle distance between the two clamping jaws 20, so that the bottom workpiece 27 in the inner cavity of the positioning groove 25 and the top workpiece 26 in the inner cavity of the clamping jaws 20 can be completely centered;
in the above preferred technical solution of the present embodiment, the steps for implementing centering and clamping of the top workpiece 26 and the bottom workpiece 27 are as follows: the bottom workpiece 27 is placed in the inner cavity of the positioning groove 25 at the top end of the positioning base 24, the top workpiece 26 is aligned to the inside of the two clamping jaws 20, the rotating hand wheel 23 drives the worm 22 to rotate, the rotating worm 22 drives the worm wheel 21 to rotate so as to drive the screw 17 to rotate, and as the screw threads arranged on the left side and the right side of the outer wall of the screw 17 are opposite in direction, the rotating screw 17 can drive the two moving blocks 18 to move inwards together so as to drive the corresponding two moving plates 19 and the clamping jaws 20 to move inwards simultaneously to realize the positioning and clamping of the top workpiece 26, and the central axis of the positioned top workpiece 26 coincides with the central axis of the positioning groove 25, so that the centering positioning of the top workpiece 26 and the bottom workpiece 27 is realized;
in addition, for assisting the rotation that the socket 11 carries out steadily, be provided with supplementary rotation subassembly between socket 11 and the workstation 1, supplementary rotation subassembly includes along circumference seting up in the spacing groove 28 on workstation 1 outer wall top, and spacing groove 28 inner chamber roll is embedded to have gyro wheel 29, and gyro wheel 29 rotates and connect in the outer wall bottom of socket 11, can drive socket 11 and rotate together when bull stick 9 rotates, and then impels gyro wheel 29 to rotate along the inner chamber of spacing groove 28 to supplementary socket 11 carries out steady rotation.
The working principle of the circumferential welding auxiliary overturning clamp is as follows:
the bottom workpiece 27 is placed in the inner cavity of the positioning groove 25 at the top end of the positioning base 24, the top workpiece 26 is aligned to the inside of the two clamping jaws 20, the rotating hand wheel 23 drives the worm 22 to rotate, the rotating worm 22 drives the worm wheel 21 to rotate so as to drive the screw 17 to rotate, and as the screw threads arranged on the left side and the right side of the outer wall of the screw 17 are opposite in direction, the rotating screw 17 can drive the two moving blocks 18 to move inwards together so as to drive the corresponding two moving plates 19 and the clamping jaws 20 to move inwards simultaneously to realize the positioning and clamping of the top workpiece 26, and the central axis of the positioned top workpiece 26 coincides with the central axis of the positioning groove 25, so that the centering positioning of the top workpiece 26 and the bottom workpiece 27 is realized;
the opened motor 4 drives the connecting rod 5, the limiting disc 6 and the driving rod 7 to rotate together, so that the driving pin 8 on the outer wall of the driving rod 7 is driven to rotate together, when the driving pin 8 is embedded into the inner cavity of the groove on the outer wall of the grooved pulley 10 during rotation, the continuously rotating driving pin 8 can drive the grooved pulley 10 to rotate together, and further the rotating rod 9, the bearing seat 11, the positioned top workpiece 26 and the positioned bottom workpiece 27 are driven to rotate together in the circumferential direction; when the driving pin 8 rotates to be separated from the groove inner cavity of the outer wall of the grooved pulley 10, the limiting disc 6 is attached to the outer wall of the grooved pulley 10 to stop rotating the grooved pulley 10 at the moment, and the manual driving welding equipment positioned at the front side of the equipment can realize the welding of the front sides of the outer walls of the top workpiece 26 and the bottom workpiece 27; after the angle welding, the driving pin 8 which continues to rotate can drive the grooved wheel 10 to intermittently rotate in the next period so as to realize the welding of the top workpiece 26 and the bottom workpiece 27 in cooperation with the welding equipment on the front side of the equipment in situ;
the effect produced by the equipment of the embodiment after trial: according to the utility model, on the premise that the positions of workers and welding equipment are unchanged, the intermittent rotation of the workpiece is utilized to realize the circumferential overturning welding of the workpiece, so that the circumferential welding of the workpiece is more stable and reliable, the steps of a mode of manually moving the position are not required to be simpler, the clamping and positioning of the top workpiece 26 with different diameters can be realized, the application range of the equipment is wider, and the positioning and welding requirements with different diameters are met.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.