Welding positioner for welding loader frame

Abstract

The invention relates to a welding positioner for welding a loader frame, which belongs to the technical field of welding positions.The welding positioner comprises a fixed base, the fixed base comprises a telescopic base, one side of the fixed base is telescopically connected with the telescopic base, and the outer wall of the telescopic base is rotatably connected with a turnover block. When a loader frame is welded and machined through the welding positioner, in order to improve the conversion and installation effect of positioners of different shapes on the device and meet the requirement for flexible machining of frames of different sizes on the whole positioner, a displacement rotating disc and a fixed containing plate can be inserted into an inserting groove, and the positioner can be inserted into the inserting groove; a rotary knob is rotated to drive a threaded sliding block to slide along the inner wall of a fixing groove through rotation of a first threaded rod, sliding of the threaded sliding block drives a clamping rod fixedly connected with a telescopic rod to slide along the outer wall of an overturning block through rotation of a rotating rod, and the clamping rod is inserted into the inner wall of a clamping groove; and the effect that the displacers in different shapes are converted and additionally arranged on the device for use is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of welding positioners, and in particular to a welding positioner for welding a loader frame. Background Art

[0002] A loader is a type of earthwork construction machinery widely used in construction projects such as roads, railways, buildings, hydropower, ports, and mines. It is mainly used for shoveling loose materials such as soil, sand, lime, and coal. It can also perform light shoveling operations on ore and hard soil. When producing and processing the loader frame, it is necessary to use a welding positioner to perform auxiliary welding operations on the loader frame.

[0003] In the prior art, there is a welding positioner with a publication number of CN222176563U, in which a mounting seat is provided on the top of the frame, and both sides of the mounting seat are rotatably connected to the frame through a worm gear structure, the worm gear structure is installed in a protective shell, the worm is connected to a transmission mechanism, and the transmission mechanism is connected to a first drive motor, and a driving gear and a transmission gear that mesh with each other are provided in the mounting seat, the driving gear is connected to a second drive motor, and the top of the rotating shaft connected to the transmission gear extends out of the mounting seat and is connected to the welding disk. In this utility model, transmission is performed through a worm gear structure, and the worm gear structure is installed in a protective shell, which can prevent welding slag from falling onto the worm gear mechanism, thereby ensuring the normal use of the device, and in addition, the driving gear and the driven gear are installed in the mounting seat, which can also protect the gears.

[0004] However, although the existing welding positioner can perform better flip welding operations on the frame workpiece when in use, the shape of the positioner is relatively single, and it is not convenient to install a positioner disk of different shapes on the welding positioner as a whole, which affects the flexibility of the welding positioner as a whole for flip welding of frames of different shapes. Welding personnel are required to frequently replace the welding positioner equipment, which reduces the efficiency of the conversion welding of the loader frame and does not meet people's usage needs. For this reason, we propose a welding positioner for loader frame welding. Summary of the invention

[0005] In order to solve the problems mentioned in the above background, the present invention provides a welding positioner for loader frame welding, so as to solve the problems mentioned in the above background technology that the shape of the positioner disk is relatively single and it is not convenient to install positioner disks of different shapes on the welding positioner as a whole.

[0006] In order to achieve the above technical objectives, the technical solutions adopted by the present invention are as follows: A welding positioner for welding a loader frame, comprising a fixed base, the fixed base comprising a telescopic base, one side of the fixed base is telescopically connected to a telescopic base, an outer wall of the telescopic base is rotatably connected to a flip block, one side of the outer wall of the flip block is detachably connected to a position change turntable, and the other side of the outer wall of the flip block is detachably connected to a fixed placement plate; The fixed base also includes: The mounting mechanism is arranged on the outer wall of the flip block and is used for converting and welding the frames of different shapes; The flipping mechanism is arranged on the outer wall of the fixed base and is used to accurately control the rotation angle of the flipping block; The conversion mechanism is arranged on one side of the position changing turntable; The mounting mechanism includes a clamping rod and a clamping slot, the outer wall of the flip block is rotatably connected to a first threaded rod, one end of the first threaded rod is fixedly connected to a knob, the outer wall of the first threaded rod is threadedly connected to a threaded slider slidably connected to the outer wall of the flip block, the outer wall of the threaded slider is rotatably connected to a rotating rod, one end of the rotating rod is rotatably connected to a telescopic rod slidably connected to the outer wall of the flip block, the outer wall of the telescopic rod is fixedly connected to a clamping rod slidably connected to the outer wall of the position shifting turntable, and a clamping slot is provided at the connection between the outer wall of the position shifting turntable and the clamping rod.

[0007] Preferably, a fixing groove is provided at the connection position between the outer wall of the flip block and the threaded slider, a slot is provided at the connection position between the inner wall of the flip block and the displacement turntable, and the threaded slider forms a sliding structure through the first threaded rod and the fixing groove.

[0008] Preferably, the rotating rod forms a rotating structure with the telescopic rod through a threaded slider and a fixed groove, and the clamping rod forms a telescopic structure with the rotating rod, the telescopic rod and the clamping groove. The clamping groove is arranged on the movement trajectory of the clamping rod, and the outer wall profile of the clamping rod is U-shaped. Four groups of rotating rods are arranged, and the positions of the four groups of rotating rods are distributed around the flip block.

[0009] Preferably, the flipping mechanism includes an indicator sign and a protractor, the outer wall of the telescopic base is fixedly connected to a control box, the outer wall of the control box is fixedly connected to a first servo motor, the output end of the first servo motor is fixedly connected to a worm rotatably connected to the inner wall of the control box, the outer wall of the worm is meshed with a worm wheel, the rotation center of the worm wheel is fixedly connected to the indicator sign via a connecting shaft, and the outer wall of the telescopic base is fixedly connected to a protractor located on one side of the indicator sign.

[0010] Preferably, the sign forms a rotating structure with a control box through a worm and a worm wheel, the rotation center of the sign and the rotation center of the worm wheel are arranged to overlap each other, and the protractor is arranged on the motion track of the sign.

[0011] Preferably, the outer wall of the fixed base is rotatably connected to a rotating shaft fixedly connected to the rotation center of the flip block, the outer wall of the rotating shaft is detachably connected to a plug rod, the outer wall of the plug rod is provided with a first nut, the inner wall of the first nut is threadedly connected to a first bolt slidably connected to the outer wall of the rotating shaft, an installation groove is provided at the connection position between the outer wall of the rotating shaft and the first bolt, the outer wall of the fixed base is fixedly connected to an electric push rod, and one end of the electric push rod is fixedly connected to an adjusting rod fixedly connected to the outer wall of the telescopic base.

[0012] Preferably, the insertion rod forms a clamping structure with the rotating shaft through the first bolt and the mounting groove, the outer wall contour of the connecting part between the end of the insertion rod and the rotating shaft is arc-shaped, and the overall outer wall contour of the insertion rod is T-shaped.

[0013] Preferably, the conversion mechanism includes an adjusting slider, the outer wall of the insertion rod is fixedly connected to a second servo motor, the output end of the second servo motor is fixedly connected to a second threaded rod rotatably connected to the outer wall of the insertion rod, the outer wall of the second threaded rod is threadedly connected to an adjusting slider slidably connected to the outer wall of the insertion rod, an adjusting groove is provided at the connection position between the outer wall of the insertion rod and the adjusting slider, the outer wall of the adjusting slider is rotatably connected to a rotating seat, the outer wall of the rotating seat is detachably connected to the LED lighting body, the outer wall of the rotating seat is provided with a second nut, the inner wall of the second nut is threadedly connected to a second bolt slidably connected to the outer wall of the LED lighting body, and a positioning groove is provided at the connection position between the outer wall of the LED lighting body and the second bolt.

[0014] Preferably, the adjusting slider forms a reciprocating sliding structure between the second threaded rod and the adjusting groove, and the rotating seat is driven by a motor on the outer wall of the adjusting slider.

[0015] Preferably, the LED lighting lamp body forms a snap-fit ​​structure with the rotating seat through the second bolt and the positioning groove, and the end of the rotating seat is used to convert and install the LED lighting lamp body and the hair dryer body.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. When the loader frame is welded by welding the positioner, in order to improve the effect of conversion and installation of positioners of different shapes on the device and meet the needs of flexible processing of frames of different sizes on the entire positioner, the positioner turntable and the fixed placement plate can be inserted into the slot, and the knob is turned to drive the threaded slider to slide along the inner wall of the fixed slot through the rotation of the first threaded rod. The sliding of the threaded slider drives the clamping rod fixedly connected to the telescopic rod to slide along the outer wall of the flip block through the rotation of the rotating rod, and the clamping rod is inserted into the inner wall of the clamping slot, so as to achieve the effect of conversion and installation of positioners of different shapes on the device.

[0017] 2. When the present invention needs to rotationally weld the vehicle frame through the positioner, in order to improve the precision control effect of the flipping angle of the positioner, the first servo motor can be turned on to drive the worm wheel to rotate through the rotation of the worm, and the rotation of the worm wheel drives the indicator sign to perform synchronous flipping movement. The rotation of the indicator sign, under the action of the protractor, can accurately control the rotation angle of the flip block to achieve the effect of precise welding of frames of different shapes.

[0018] 3. When welding frames of different lengths, in order to improve the adaptability of the positioner to the placement of frames of different lengths, the electric push rod can be opened to drive the telescopic base fixedly connected to the adjusting rod to perform telescopic movement along one side of the fixed base, thereby achieving the effect of conveniently adjusting the welding distance between the bases.

[0019] 4. When the loader frame is welded through the positioner of the present invention, in order to improve the lighting effect of the frame welding on the positioner and the auxiliary blowing off effect of the debris on the positioner, when the positioner needs to be illuminated and welded, the LED lighting lamp body can be inserted into the outer wall of the rotating seat for snap-fit ​​installation, and the second servo motor is turned on to drive the adjustment slider to slide along the inner wall of the adjustment groove through the rotation of the second threaded rod, thereby adjusting the lighting for different welding positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall side view structure of the present invention; Figure 3 It is a schematic diagram of the connection structure between the worm and the worm wheel of the present invention; Figure 4 It is a schematic diagram of the slot position distribution structure of the present invention; Figure 5 It is a schematic diagram of the connection structure between the threaded slider and the rotating rod of the present invention; Figure 6 It is a schematic diagram of the position distribution structure of the signboard and the protractor of the present invention; Figure 7 It is a schematic diagram of the connection structure between the adjusting slider and the plug rod of the present invention; Figure 8 It is a schematic diagram of the connection structure between the adjusting rod and the electric push rod of the present invention; Fig. 9 For the present invention Figure 5 A is an enlarged structural diagram; Fig.10 For the present invention Figure 6 The enlarged structural diagram at B in FIG. Fig.11 For the present invention Figure 7The enlarged structural diagram at C in the figure.

[0021] The reference numerals in the accompanying drawings are: 1. Fixed base; 2. Telescopic base; 3. Flip block; 4. Positioning turntable; 5. Fixed placement plate; 6. Mounting mechanism; 601. First threaded rod; 602. Knob; 603. Threaded slider; 604. Fixed slot; 605. Rotating rod; 606. Telescopic rod; 607. Clamping rod; 608. Clamping slot; 609. Slot; 7. Flip mechanism; 701. Control box; 702. First servo motor; 703. Worm; 704. Worm wheel; 705. Indicator Brand; 706, protractor; 8, plug rod; 9, rotating shaft; 10, first nut; 11, first bolt; 12, mounting slot; 13, electric push rod; 14, adjusting rod; 15, conversion mechanism; 1501, second servo motor; 1502, second threaded rod; 1503, adjusting slider; 1504, adjusting slot; 1505, rotating seat; 1506, LED lighting body; 1507, second nut; 1508, second bolt; 1509, positioning slot. DETAILED DESCRIPTION

[0022] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0023] Embodiment 1: See also Figures 1 to 11 The present embodiment provides a welding positioner for loader frame welding, including a fixed base 1, the fixed base 1 including a telescopic base 2, one side of the fixed base 1 is telescopically connected to the telescopic base 2, the outer wall of the telescopic base 2 is rotatably connected to a flip block 3, one side of the outer wall of the flip block 3 is detachably connected to a position change turntable 4, and the other side of the outer wall of the flip block 3 is detachably connected to a fixed placement plate 5.

[0024] Embodiment 2: Based on the embodiment 1, a mounting mechanism 6 is further disclosed.

[0025] like Figure 4-Figure 9 As shown, the fixed base 1 also includes: An additional installation mechanism 6 is arranged on the outer wall of the flip block 3 and is used for converting and welding vehicle frames of different shapes; The flipping mechanism 7 is arranged on the outer wall of the fixed base 1 and is used to accurately control the rotation angle of the flipping block 3; The mounting mechanism 6 includes a clamping rod 607 and a clamping slot 608. The outer wall of the flip block 3 is rotatably connected to the first threaded rod 601, one end of the first threaded rod 601 is fixedly connected to the knob 602, the outer wall of the first threaded rod 601 is threadedly connected to a threaded slider 603 which is slidably connected to the outer wall of the flip block 3, the outer wall of the threaded slider 603 is rotatably connected to the rotating rod 605, one end of the rotating rod 605 is rotatably connected to a telescopic rod 606 which is slidably connected to the outer wall of the flip block 3, the outer wall of the telescopic rod 606 is fixedly connected to the clamping rod 607 which is slidably connected to the outer wall of the position shifting turntable 4, and a clamping slot 608 is provided at the connection between the outer wall of the position shifting turntable 4 and the clamping rod 607.

[0026] like Figure 5 As shown, a fixing groove 604 is provided at the connection position between the outer wall of the flip block 3 and the threaded slider 603, and a slot 609 is provided at the connection position between the inner wall of the flip block 3 and the shifting turntable 4. The threaded slider 603 forms a sliding structure between the first threaded rod 601 and the fixing groove 604, which is beneficial to the rotation of the first threaded rod 601, driving the threaded slider 603 to slide along the inner wall of the fixing groove 604, thereby driving the rotating rod 605 to rotate conveniently.

[0027] like Figure 5 and Fig. 9 As shown, the rotating rod 605 forms a rotating structure with the telescopic rod 606 through the threaded slider 603 and the fixed groove 604, and the clamping rod 607 forms a telescopic structure with the rotating rod 605, the telescopic rod 606 and the clamping groove 608. The clamping groove 608 is arranged on the movement trajectory of the clamping rod 607, and the outer wall profile of the clamping rod 607 is U-shaped. There are four groups of rotating rods 605, and the positions of the four groups of rotating rods 605 are evenly distributed around the flip block 3, which is conducive to the threaded slider 603 sliding along the inner wall of the fixed groove 604, driving the rotating rod 605 rotatably connected to the telescopic rod 606 to rotate conveniently, playing a role in driving the clamping rod 607 to conveniently telescope, thereby achieving the effect of flexible conversion and use of the positioner body.

[0028] like Figure 1-Figure 3As shown, the flip mechanism 7 includes an indicator plate 705 and a protractor 706, the outer wall of the telescopic base 2 is fixedly connected to a control box 701, the outer wall of the control box 701 is fixedly connected to a first servo motor 702, the output end of the first servo motor 702 is fixedly connected to a worm 703 rotatably connected to the inner wall of the control box 701, the outer wall of the worm 703 is meshed with a worm wheel 704, the rotation center of the worm wheel 704 is fixedly connected to the indicator plate 705 through a connecting shaft, and the outer wall of the telescopic base 2 is fixedly connected to a protractor located on one side of the indicator plate 705 By setting the protractor 706, when it is necessary to rotationally weld the vehicle frame through the positioner, in order to improve the precision control effect of the flipping angle of the positioner, the first servo motor 702 can be turned on to drive the worm wheel 704 to rotate through the rotation of the worm 703. The rotation of the worm wheel 704 drives the indicator plate 705 to perform synchronous flipping movement. The rotation of the indicator plate 705, under the action of the protractor 706, can accurately control the rotation angle of the flip block 3, so as to achieve the effect of precise welding of frames of different shapes.

[0029] like Figure 3 As shown, the indicator sign 705 forms a rotating structure with the control box 701 through the worm 703 and the worm wheel 704. The rotation center of the indicator sign 705 and the rotation center of the worm wheel 704 are arranged to overlap with each other. The protractor 706 is arranged on the movement trajectory of the indicator sign 705, which is conducive to the rotation of the worm 703. Through the connection of the worm wheel 704, the indicator sign 705 is driven to rotate along the outer wall of the control box 701, and the rotation angle of the flip block 3 is accurately controlled to achieve the effect of accurate welding of frames of different shapes.

[0030] like Figure 6-Figure 8 As shown, the outer wall of the fixed base 1 is rotatably connected to a rotating shaft 9 fixedly connected to the rotation center of the flip block 3, the outer wall of the rotating shaft 9 is detachably connected to a plug rod 8, the outer wall of the plug rod 8 is provided with a first nut 10, the inner wall of the first nut 10 is threadedly connected to a first bolt 11 slidably connected to the outer wall of the rotating shaft 9, and a mounting groove 12 is provided at the connection portion between the outer wall of the rotating shaft 9 and the first bolt 11, the outer wall of the fixed base 1 is fixedly connected to an electric push rod 13, one end of the electric push rod 13 is fixedly connected to an adjusting rod 14 fixedly connected to the outer wall of the telescopic base 2, by providing the adjusting rod 14, it is beneficial to weld frames of different lengths, in order to improve the adaptability of the positioner to the placement of frames of different lengths, the electric push rod 13 can be opened to drive the telescopic base 2 fixedly connected to the adjusting rod 14 to perform telescopic movement along one side of the fixed base 1, so as to achieve the effect of conveniently adjusting the welding distance between the bases.

[0031] like Figure 6-Figure 10As shown, the insertion rod 8 forms a locking structure with the rotating shaft 9 through the first bolt 11 and the installation groove 12. The outer wall contour of the connection part between the end of the insertion rod 8 and the rotating shaft 9 is arc-shaped, and the overall outer wall contour of the insertion rod 8 is T-shaped, which is conducive to the first bolt 11 sliding along the inner wall of the installation groove 12, driving the insertion rod 8 to be locked and connected with the outer wall of the rotating shaft 9, thereby achieving the effect of pre-installing and using the LED lighting lamp body 1506.

[0032] like Figure 6-Figure 11 As shown, The conversion mechanism 15 is arranged on one side of the position changing turntable 4; The conversion mechanism 15 includes an adjusting slider 1503, the outer wall of the plug rod 8 is fixedly connected to the second servo motor 1501, the output end of the second servo motor 1501 is fixedly connected to the second threaded rod 1502 rotatably connected to the outer wall of the plug rod 8, the outer wall of the second threaded rod 1502 is threadedly connected to the adjusting slider 1503 slidably connected to the outer wall of the plug rod 8, the connecting part of the outer wall of the plug rod 8 and the adjusting slider 1503 is provided with an adjusting groove 1504, the outer wall of the adjusting slider 1503 is rotatably connected to a rotating seat 1505, the outer wall of the rotating seat 1505 is detachably connected to the LED lighting body 1506, the outer wall of the rotating seat 1505 is provided with a second nut 1507, the inner wall of the second nut 1507 is threadedly connected to the LED lighting body 1 506 outer wall is slidably connected to the second bolt 1508, and a positioning groove 1509 is provided at the connection position between the outer wall of the LED lighting lamp body 1506 and the second bolt 1508. By setting the rotating seat 1505, it is beneficial to weld the loader frame through the positioner. In order to improve the lighting effect of the frame welding on the positioner and the auxiliary blowing off effect of the debris on the positioner, when the positioner needs to be illuminated and welded, the LED lighting lamp body 1506 can be inserted into the outer wall of the rotating seat 1505 for snap-fit ​​installation, and the second servo motor 1501 is turned on to drive the adjusting slider 1503 to slide along the inner wall of the adjusting groove 1504 through the rotation of the second threaded rod 1502, so as to adjust the lighting of different welding positions.

[0033] like Figure 7 As shown, the adjusting slider 1503 forms a reciprocating sliding structure between the second threaded rod 1502 and the adjusting groove 1504, and the rotating seat 1505 is driven by the motor on the outer wall of the adjusting slider 1503, which is conducive to the rotation of the second threaded rod 1502, driving the adjusting slider 1503 to slide along the inner wall of the adjusting groove 1504, thereby facilitating the adjustment of the lighting position of the LED lighting lamp body 1506.

[0034] like Fig.11As shown, the LED lighting lamp body 1506 forms a locking structure with the rotating seat 1505 through the second bolt 1508 and the positioning groove 1509. The end of the rotating seat 1505 is used to convert the installation of the LED lighting lamp body 1506 and the hair dryer body, which is conducive to the second bolt 1508 sliding along the inner wall of the positioning groove 1509, driving the LED lighting lamp body 1506 to be engaged and converted on the rotating seat 1505 for use.

[0035] Working principle: like Figure 1-Figure 11 As shown, when the loader welding positioner is used, first, when the loader frame is welded by the welding positioner, in order to improve the effect of conversion and installation of positioners of different shapes on the device and meet the needs of flexible processing of frames of different sizes on the entire positioner, the positioner turntable 4 and the fixed placement plate 5 can be inserted into the slot 609, and the knob 602 is turned to drive the threaded slider 603 to slide along the inner wall of the fixed groove 604 through the rotation of the first threaded rod 601. The sliding of the threaded slider 603 drives the clamping rod 607 fixedly connected to the telescopic rod 606 to slide along the outer wall of the flip block 3 through the rotation of the rotating rod 605, and the clamping rod 607 is inserted into the inner wall of the clamping groove 608, so as to achieve the effect of conversion and installation of positioners of different shapes on the device. Next, when the vehicle frame needs to be rotationally welded by the positioner, in order to improve the precision control effect of the flip angle of the positioner, the first servo motor 702 can be turned on to drive the worm wheel 704 to rotate through the rotation of the worm 703. The rotation of the worm wheel 704 drives the indicator plate 705 to perform synchronous flipping movement. The rotation of the indicator plate 705, under the action of the protractor 706, accurately controls the rotation angle of the flip block 3, so as to achieve the effect of precise welding of vehicle frames of different shapes; Next, when welding frames of different lengths, in order to improve the adaptability of the positioner to the placement of frames of different lengths, the electric push rod 13 can be turned on to drive the telescopic base 2 fixedly connected to the adjustment rod 14 to perform telescopic movement along one side of the fixed base 1, so as to achieve the effect of conveniently adjusting the welding distance between the bases; Finally, when the loader frame is welded through the positioner, in order to improve the lighting effect of the frame welding on the positioner and the auxiliary blowing off effect of the debris on the positioner, when the positioner needs to be illuminated and welded, the LED lighting lamp body 1506 can be inserted into the outer wall of the rotating seat 1505 for snap-fit ​​installation, and the second servo motor 1501 is turned on to drive the adjustment slider 1503 to slide along the inner wall of the adjustment groove 1504 through the rotation of the second threaded rod 1502, thereby adjusting the lighting for different welding positions.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A welding positioner for welding a loader frame, comprising a fixed base (1), characterized in that: The fixed base (1) comprises a telescopic base (2), one side of the fixed base (1) is telescopically connected to the telescopic base (2), the outer wall of the telescopic base (2) is rotatably connected to a flip block (3), one side of the outer wall of the flip block (3) is detachably connected to a displacement turntable (4), and the other side of the outer wall of the flip block (3) is detachably connected to a fixed placement plate (5); The fixed base (1) further comprises: An installation mechanism (6) is arranged on the outer wall of the flip block (3) and is used for converting and welding vehicle frames of different shapes; A turning mechanism (7) is arranged on the outer wall of the fixed base (1) and is used to accurately control the rotation angle of the turning block (3); A conversion mechanism (15) is arranged on one side of the position changing turntable (4); The mounting mechanism (6) comprises a clamping rod (607) and a clamping slot (608); the outer wall of the flip block (3) is rotatably connected to a first threaded rod (601); one end of the first threaded rod (601) is fixedly connected to a knob (602); the outer wall of the first threaded rod (601) is threadedly connected to a threaded slider (603) slidably connected to the outer wall of the flip block (3); the outer wall of the threaded slider (603) is rotatably connected to a rotating rod (605); one end of the rotating rod (605) is rotatably connected to a telescopic rod (606) slidably connected to the outer wall of the flip block (3); the outer wall of the telescopic rod (606) is fixedly connected to a clamping rod (607) slidably connected to the outer wall of the displacement turntable (4); and a clamping slot (608) is provided at the connection portion between the outer wall of the displacement turntable (4) and the clamping rod (607).

2. The welding positioner for loader frame welding according to claim 1, characterized in that: A fixing groove (604) is provided at the connection position between the outer wall of the flip block (3) and the threaded slider (603), a slot (609) is provided at the connection position between the inner wall of the flip block (3) and the displacement turntable (4), and the threaded slider (603) forms a sliding structure between the first threaded rod (601) and the fixing groove (604).

3. The welding positioner for loader frame welding according to claim 1, characterized in that: The rotating rod (605) forms a rotating structure with the telescopic rod (606) through the threaded slider (603) and the fixed groove (604); the clamping rod (607) forms a telescopic structure with the rotating rod (605) and the telescopic rod (606) and the clamping groove (608); the clamping groove (608) is arranged on the movement track of the clamping rod (607); and the outer wall profile of the clamping rod (607) is in a U shape. Four groups of the rotating rods (605) are arranged, and the positions of the four groups of the rotating rods (605) are distributed around the flip block (3).

4. The welding positioner for loader frame welding according to claim 1, characterized in that: The flip mechanism (7) comprises an indicator sign (705) and a protractor (706); the outer wall of the telescopic base (2) is fixedly connected to a control box (701); the outer wall of the control box (701) is fixedly connected to a first servo motor (702); the output end of the first servo motor (702) is fixedly connected to a worm (703) rotatably connected to the inner wall of the control box (701); the outer wall of the worm (703) is meshed with a worm wheel (704); the rotation center of the worm wheel (704) is fixedly connected to the indicator sign (705) via a connecting shaft; and the outer wall of the telescopic base (2) is fixedly connected to a protractor (706) located on one side of the indicator sign (705).

5. The welding positioner for loader frame welding according to claim 4, characterized in that: The sign (705) forms a rotating structure with the control box (701) through the worm (703) and the worm wheel (704); the rotation center of the sign (705) and the rotation center of the worm wheel (704) are arranged to overlap with each other; and the protractor (706) is arranged on the movement track of the sign (705).

6. The welding positioner for loader frame welding according to claim 1, characterized in that: The outer wall of the fixed base (1) is rotatably connected to a rotating shaft (9) fixedly connected to the rotating center of the flip block (3); the outer wall of the rotating shaft (9) is detachably connected to an insertion rod (8); the outer wall of the insertion rod (8) is provided with a first nut (10); the inner wall of the first nut (10) is threadedly connected to a first bolt (11) slidably connected to the outer wall of the rotating shaft (9); a mounting groove (12) is provided at a connection portion between the outer wall of the rotating shaft (9) and the first bolt (11); the outer wall of the fixed base (1) is fixedly connected to an electric push rod (13); one end of the electric push rod (13) is fixedly connected to an adjustment rod (14) fixedly connected to the outer wall of the telescopic base (2).

7. The welding positioner for welding a loader frame according to claim 6, characterized in that: The insertion rod (8) forms a snap-fit ​​structure with the rotating shaft (9) through the first bolt (11) and the mounting groove (12); the outer wall contour of the connection portion between the end of the insertion rod (8) and the rotating shaft (9) is in an arc shape; and the overall outer wall contour of the insertion rod (8) is in a T shape.

8. The welding positioner for loader frame welding according to claim 6, characterized in that: The conversion mechanism (15) comprises an adjusting slider (1503); the outer wall of the insertion rod (8) is fixedly connected to a second servo motor (1501); the output end of the second servo motor (1501) is fixedly connected to a second threaded rod (1502) rotatably connected to the outer wall of the insertion rod (8); the outer wall of the second threaded rod (1502) is threadedly connected to an adjusting slider (1503) slidably connected to the outer wall of the insertion rod (8); an adjusting groove (1504) is provided at a connection portion between the outer wall of the insertion rod (8) and the adjusting slider (1503); The outer wall of the slider (1503) is rotatably connected to a rotating seat (1505), the outer wall of the rotating seat (1505) is detachably connected to an LED lighting lamp body (1506), the outer wall of the rotating seat (1505) is provided with a second nut (1507), the inner wall of the second nut (1507) is threadedly connected to a second bolt (1508) slidably connected to the outer wall of the LED lighting lamp body (1506), and a positioning groove (1509) is provided at the connection portion between the outer wall of the LED lighting lamp body (1506) and the second bolt (1508).

9. The welding positioner for loader frame welding according to claim 8, characterized in that: The adjusting slider (1503) forms a reciprocating sliding structure through the second threaded rod (1502) and the adjusting groove (1504), and the rotating seat (1505) is driven by a motor on the outer wall of the adjusting slider (1503).

10. The welding positioner for loader frame welding according to claim 8, characterized in that: The LED lighting lamp body (1506) forms a snap-fit ​​structure with the rotating seat (1505) via the second bolt (1508) and the positioning groove (1509); the end of the rotating seat (1505) is used to convert and install the LED lighting lamp body (1506) and the hair dryer body.

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