CN217799989U - Automatic welding initial positioning device for oil pipe base robot - Google Patents

Abstract

The utility model provides an oil pipe seat robot automatic weld just positioner, including horizontal bed, servo motor is installed to the bed upside, the servo motor output shaft is equipped with first toper top, the bed upside is equipped with the vertical support of arranging, be equipped with the flexible feeding device of level on the support, flexible feeding device includes fixed part and movable part, the fixed part links to each other with the support, it is top to be equipped with the second toper in the movable part, the top and the top mutual disposition of first toper of second toper, be equipped with oil pipe seat location frock on the bed, comprising a base plate, be equipped with linear guide on the bottom plate, the last slider that is equipped with of linear guide, be equipped with the mount pad on the slider, be equipped with elevating system on the mount pad, the last oil pipe seat stopper that is connected with of elevating system, oil pipe seat stopper is the ascending U-shaped of opening. The oil tube base after spot welding can be used as a reference, the cylinder barrel is fixed conveniently and quickly, an initial position point before welding is determined, automatic welding of the oil tube base and the cylinder barrel is achieved, errors are small, and efficiency is high.

Description

Automatic welding initial positioning device for oil pipe base robot

Technical Field

The utility model relates to an oil pipe base robot automatic weld is positioner just.

Background

In a hydraulic system of an automobile crane, an actuating element is mainly divided into a hydraulic motor and a hydraulic oil cylinder. The support leg loop in the crane hydraulic system is used for driving the support leg and supporting the whole crane. The vertical hydraulic cylinder is a main actuating element in a supporting leg loop, when an oil pipe seat is welded on a cylinder barrel of the vertical hydraulic cylinder, a contact surface is similar to a saddle surface, continuous welding of a welding seam is required to be realized, an oil pipe seat assembly is manually MAG-welded, the leak rate of the welded vertical cylinder is 15-20% after pressure test detection, the leaked vertical cylinder needs polishing repair welding and repair, the production period is long, and the cost is high; utilize the automatic weld production in batches of current oil tube seat robot, the pressure testing detects the leakage rate and is less than 0.5%, the welding process stable in quality, efficiency improves 50%, the production beat shortens, repair welding reprocesses the cost and reduces by a wide margin, but the robot is to the cylinder, the requirement of oil tube seat initial position point before welding is very accurate, if initial position has the deviation, follow-up welding will cause the skew of very big degree, and the mode of initial position is confirmed through artifical range estimation now, not only efficiency is extremely low and the error is great, be unfavorable for production.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a positioner is just welded to oil pipe seat robot automatic weld is provided, it can use the oil pipe seat after the spot welding as the benchmark, convenient, swift fixed cylinder to the initial position point before the definite welding realizes the automatic weld of oil pipe seat and cylinder, and the error is little, efficient.

For solving the technical problem, the utility model provides an oil pipe seat robot automatic weld is positioner just, including the rectangle bed seat that the level was arranged, servo motor is installed to the bed seat upside, the servo motor output shaft level is arranged, servo motor output shaft tip is coaxial to be equipped with first toper top, the one side relative with servo motor on the position of bed seat upside is equipped with the vertical support of arranging, support upper portion is equipped with the flexible feeding device that the level was arranged, flexible feeding device includes fixed part and movable part, the fixed part links to each other with the support, be equipped with second toper top on the movable part, second toper top is coaxial with first toper top and the position relative arrangement, department is equipped with oil pipe seat location frock on the bed seat position between corresponding servo motor and the support, oil pipe seat location frock including the level arrange and with bed seat bolted connection's frock bottom plate, be equipped with linear guide on the frock bottom plate, linear guide length direction move towards unanimously with servo motor axis direction, be equipped with linear guide assorted slider on the slider, be equipped with the mount pad that the level was arranged, be equipped with the elevating system of vertical arrangement on the mount pad, elevating system go up loose oil pipe seat be connected with the stopper, oil pipe seat be the stopper on.

For the sake of simple explanation, it is right below the utility model discloses an oil pipe seat robot automatic weld just positioner, this device is all abbreviated for short.

The using method of the device comprises the following steps: firstly, selecting a proper oil pipe seat limiting block according to the sizes of a cylinder barrel to be welded and an oil pipe seat, adjusting the height of the oil pipe limiting block to be close to a target height (generally slightly smaller than the target height) through a lifting device, spot-welding and pre-fixing the oil pipe seat on the surface of the cylinder barrel, then placing the oil pipe seat which is spot-welded and pre-fixed on the cylinder barrel on the oil pipe seat limiting block, enabling two ends of the length direction of the cylinder barrel to be respectively opposite to a first conical tip and a second conical tip, then starting a telescopic feeding device to enable the second conical tip to be close to the first conical tip, respectively extending the first conical tip and the second conical tip into two ends of the cylinder barrel and tightly pushing against the cylinder barrel, thereby determining an axis datum, then enabling the oil pipe seat which is spot-welded and pre-fixed on the cylinder barrel to be attached to the inner bottom surface and two inner side surfaces of the oil pipe seat limiting block through adjusting a lifting mechanism, enabling the oil pipe seat which is spot-welded and pre-fixed on the cylinder barrel to be attached to the two inner side surfaces of the oil pipe seat limiting block, if the position of the oil pipe seat has a deviation, needing to be adjusted by rotating the cylinder barrel, completing the determination of the initial position point-welded and enabling a slider on a linear guide rail to slide, then starting a servo motor to be in a cylinder barrel to be in a full position, and enabling the servo motor to be located on the cylinder barrel to be automatically.

The device has the advantages that: the oil pipe seat after spot welding can be used as a reference by the device, the cylinder barrel is conveniently and quickly fixed, the initial position point before welding is determined, automatic welding of the oil pipe seat and the cylinder barrel is achieved, the error is small, the efficiency is high, in addition, during replacement, the diameter of the cylinder barrel and the outer circle are changed, when the size of the oil pipe seat is changed, the corresponding oil pipe seat limiting block is replaced, and the height of the lifting device is adjusted. The oil pipe seat limiting block is movably connected with the lifting mechanism, so that convenience and rapidness in replacement are realized, and the production replacement time is greatly shortened.

In order to achieve better using effect of the device, the preferred scheme is as follows:

preferably, the lifting mechanism comprises a vertically arranged tool supporting tube, the tool supporting tube comprises an inner tube and an outer tube which are coaxially arranged and are sleeved inside and outside, the inner tube and the outer tube are in clearance fit, the fit clearance is controlled to be 0.05-0.10mm, the height of the outer tube is larger than that of the inner tube, the lower side of the inner tube is connected with a tool bottom plate, a top plate is arranged on the upper side of the outer tube, an oil tube seat limiting block is movably connected with the top plate, a bolt hole which penetrates through the outer tube along the radial direction is formed in the circumferential side face of the outer tube, and a locking bolt is screwed in the bolt hole.

When in use, the outer pipe body is pulled to be adjusted to a proper height, then the locking bolt is screwed, the thread end of the locking bolt is tightly propped against the outer wall of the inner pipe body, thereby completing the locking, the lifting mechanism has simple integral structure, convenient manufacture and extremely low failure rate, during the production change, because the lifting device adopts the bolt locking, the adjustment is extremely convenient, the production change time is shortened, the production efficiency is improved,

preferably, the linear guide rail is a duplex slide rail, and two ends of the duplex slide rail in the length direction are respectively provided with a limiting block.

The operation of the duplex slide rail is more stable, and the limiting block can limit the slider to move within a certain range, so that the slider is prevented from being separated from the linear guide rail.

Drawings

Fig. 1 is a schematic structural view of the present apparatus.

Fig. 2 is a front view of the present device.

Fig. 3 is a schematic view of the device in use.

Fig. 4 is a sectional view of the elevating mechanism in the present apparatus.

Detailed Description

Referring to fig. 1-4, an automatic welding primary positioning device for an oil pipe base robot comprises a rectangular bed base 1 which is horizontally arranged, a servo motor 2 is installed on the upper side of the bed base 1, an output shaft of the servo motor 2 is horizontally arranged, a first conical tip 21 is coaxially arranged at the end part of the output shaft of the servo motor 2, a vertically arranged support 3 is arranged on one side, opposite to the servo motor 2, of the upper side of the bed base 1, a horizontally arranged telescopic feeding device 32 (generally adopting an oil cylinder, an air cylinder or an electric cylinder) is arranged on the upper portion of the support 3, the telescopic feeding device 32 comprises a fixed portion and a movable portion, the fixed portion is connected with the support 3, a second conical tip 31 is arranged on the movable portion, the second conical tip 31 and the first conical tip 21 are coaxially and relatively arranged in position, an oil pipe base positioning tool is arranged between the servo motor 2 and the support 3 in a position corresponding to the bed base 1, the oil pipe base positioning tool comprises a tool bottom plate 4 which is horizontally arranged and is bolted with the bed base 1, a linear guide rail 41 is arranged on the tool bottom plate 4, the linear guide rail 41 is provided with a slider 41 matched with the linear guide rail 41, a lifting stopper 6 arranged horizontally, and a lifting stopper 5 is arranged on the lifting mechanism 5.

The lifting mechanism 5 comprises a vertically arranged tool supporting pipe, the tool supporting pipe comprises an inner pipe body 51 and an outer pipe body 52 which are coaxially arranged and are sleeved inside and outside, the inner pipe body and the outer pipe body are in clearance fit, the fit clearance is controlled to be 0.05-0.10mm, the height of the outer pipe body 52 is larger than that of the inner pipe body 51, the lower side of the inner pipe body 51 is connected with a tool bottom plate 4, a top plate 53 is arranged on the upper side of the outer pipe body 52, an oil pipe seat limiting block 6 is movably connected with the top plate 53, a bolt hole 54 which penetrates through the outer pipe body 52 along the radial direction is arranged on the circumferential side surface of the outer pipe body 52, and a locking bolt 55 is screwed in the bolt hole 54.

The linear guide rail 41 is a duplex slide rail, and two ends of the duplex slide rail in the length direction are respectively provided with a limiting block 44.

The using method of the device comprises the following steps: firstly, selecting a proper oil pipe seat limiting block 6 according to the sizes of a cylinder barrel 7 and an oil pipe seat 8 to be welded, adjusting the height of the oil pipe limiting block 44 to be close to a target height (generally slightly smaller than the target height) through a lifting device, spot-welding and pre-fixing the oil pipe seat 8 on the surface of the cylinder barrel 7, then placing the oil pipe seat 8 which is spot-welded and pre-fixed on the cylinder barrel 7 on the oil pipe seat limiting block 6, enabling two ends of the cylinder barrel 7 in the length direction to be respectively opposite to a first conical tip 21 and a second conical tip 31, then starting a telescopic feeding device 32 to enable the second conical tip 31 to approach to the first conical tip 21, enabling the first conical tip 21 and the second conical tip 31 to respectively stretch into two ends of the cylinder barrel 7 and tightly prop against the cylinder barrel 7, thereby the axis benchmark has been confirmed, then through adjusting elevating system 5, make on the cylinder 7 the interior bottom surface and two medial surfaces of oil pipe seat 8 and oil pipe seat stopper 6 of spot welding prefixed laminate, if there is the deviation in the position of oil pipe seat 8, then need to rotate cylinder 7 and adjust, after three faces of oil pipe seat 8 and oil pipe seat stopper 6 of spot welding prefixed on the cylinder 7 are all laminated, then accomplish the confirmation of the initial position point before welding, slider 42 on the slip linear guide 41 this moment, make oil pipe seat stopper 6 and the oil pipe seat 8 on the cylinder 7 separate, then start servo motor 2 and rotate cylinder 7, make oil pipe seat 8 be in suitable right position, the arm carries out automatic full weld.

The device has the advantages that: this device can use oil pipe seat 8 after the spot welding as the benchmark, convenient, swift fixed cylinder 7 to the initial position point before the definite welding realizes the automatic weld of oil pipe seat 8 and cylinder 7, and the error is little, efficient, and in addition, during the time changing, 7 diameters of cylinder and excircle change, when oil pipe seat 8 size changes, change corresponding oil pipe seat stopper 6, adjust elevating gear's height can. The oil pipe seat limiting block 6 is movably connected with the lifting mechanism 5, so that the replacement is convenient and fast, and the production replacement time is greatly shortened.

When the lifting mechanism is used, the outer pipe body 52 is pulled to be adjusted to a proper height, then the locking bolt 55 is screwed, the threaded end of the locking bolt 55 is tightly abutted to the outer wall of the inner pipe body 51, so that locking is completed, the lifting mechanism 5 is simple in overall structure, convenient to manufacture, extremely low in failure rate, and during production change, as the lifting mechanism is locked by the bolt, the adjustment is extremely convenient, the production change time is shortened, and the production efficiency is improved.

The operation of the duplex slide rail is more stable, and the limiting block 44 can limit the movement of the slide block 42 in a certain range, so as to prevent the slide block 42 from being separated from the linear guide rail 41.

Claims (3)

1. The utility model provides an oil pipe seat robot automatic weld is positioner just which characterized in that: the oil pipe seat positioning tool comprises a tool bottom plate which is horizontally arranged and is in bolted connection with the bed seat, a linear guide rail is arranged on the tool bottom plate, the length direction of the linear guide rail is consistent with the axial direction of the servo motor, a sliding block matched with the linear guide rail is arranged on the linear guide rail, a horizontally arranged mounting seat is arranged on the sliding block, a vertically arranged lifting mechanism is arranged on the mounting seat, an oil pipe seat is movably connected with a limiting block, and the oil pipe seat is in a U-shaped shape with an upward opening.

2. The automatic welding initial positioning device of the oil pipe base robot as claimed in claim 1, wherein: the lifting mechanism comprises a vertically arranged tool supporting pipe, the tool supporting pipe comprises an inner pipe body and an outer pipe body which are coaxially arranged and are sleeved inside and outside, the height of the outer pipe body is larger than that of the inner pipe body, the lower side of the inner pipe body is connected with a tool bottom plate, a top plate is arranged on the upper side of the outer pipe body, an oil pipe seat limiting block is movably connected with the top plate, a bolt hole radially penetrating through the outer pipe body is formed in the circumferential side surface of the outer pipe body, and a locking bolt is screwed in the bolt hole.

3. The automatic welding initial positioning device of the oil pipe base robot as claimed in claim 1, wherein: the linear guide rail adopts a duplex slide rail, and two ends of the duplex slide rail in the length direction are respectively provided with a limiting block.

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