Welding tool capable of rapidly rotating trailer upper frame in multiple directions

Abstract

The utility model belongs to the technical field of welding, and particularly relates to a trailer upper frame welding tool capable of rotating rapidly in multiple directions. Comprising a welding and clamping tool assembly used for clamping a workpiece, and the two ends of the welding and clamping tool assembly are both installed on a supporting and sleeving assembly; the first supporting frame body and the second supporting frame body are arranged at the two ends of the welding and clamping tool assembly respectively and used for installing the supporting and sleeving assembly; and the source single-function servo positioner is connected with the welding clamping tool assembly through a driving device and used for driving the welding clamping tool assembly to rotate. Compared with manual multi-position rotating welding, the welding tool capable of rotating the trailer upper frame in multiple directions has the advantages that high efficiency, high quality and high economical efficiency are achieved by adjusting welding manufacturing of multiple screws, and the welding labor intensity is greatly relieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding, in particular to a welding tool capable of rapidly rotating a trailer upper frame in multiple directions. Background Art

[0002] In rail transport and consignment, the trailer frame is an indispensable main structural component, which is used to stably and accurately complete the transportation of various car body materials, and plays the role of frame support stability. If the manufacturing accuracy and size do not meet the technical requirements, it will cause large distortion and uneven operation during use, and at the same time increase the traction force, that is, the operating power, and increase the power loss; furthermore, the car body materials in the subsequent transportation process will cause uncoupling, slipping, dumping and other problems, which greatly affects the transportation efficiency and safety.

[0003] In traditional production, batch trailer frame workpieces (with multiple parts, multiple positioning dimensions and multiple welding positions assembled on the workpiece) are welded by manual riveting and welding using traditional low-end measures. During the production process, simple welding jigs are made to assemble and clamp the workpieces inefficiently, and the operator needs to adjust multiple position screws on the jig to complete the welding of various parts. After welding is completed, the workpiece will produce welding deformation and requires a secondary shaping process to finally ensure that the workpiece size technical requirements are met. If a shift requires a riveter, a welder and a shaper and grinder to produce batch trailer frames, only about 5 pieces can be completed per shift. Therefore, traditional production has problems such as a large number of personnel, frequent manual rotation processes, low production efficiency, high production costs, poor processing consistency, and extremely high labor intensity for workers. Summary of the Invention

[0004] In order to solve the problems of low production efficiency, poor processing consistency, great labor intensity for workers and avoid welding deformation when manufacturing batch trailer upper frames, the utility model provides a welding tool for trailer upper frames that can be quickly rotated in multiple directions.

[0005] The utility model adopts the following technical solution: a multi-directional and fast rotating trailer upper frame welding tool, comprising:

[0006] A welding clamping fixture assembly, wherein the welding clamping fixture assembly is used to clamp the workpiece, and both ends of the welding clamping fixture assembly are mounted on the supporting set assembly;

[0007] Support frame body 1 and support frame body 2, wherein the support frame body 1 and support frame body 2 are respectively arranged at two ends of the welding clamping tooling assembly and are used to install the support set assembly;

[0008] A single-function servo positioner is connected to the welding clamping tooling assembly via a driving device, and is used to drive the welding clamping tooling assembly to rotate.

[0009] In some embodiments, a work base plate is further included for mounting the support frame 1, the support frame 2 and the single-function servo positioner. The work base plate includes:

[0010] base panel 1, base panel 2 and base panel 3 connected to each other;

[0011] The joints between base panel 1 and base panel 2, and base panel 2 and base panel 3 are equipped with stoppers and pin holes to facilitate installation;

[0012] The panel is provided with multiple stations for installing cylindrical pins, which are used to accurately position the support frame one and the support frame two.

[0013] In some embodiments, the support kit assembly includes:

[0014] V-type bearing;

[0015] A V-shaped support pressure plate, one end of which is rotatably connected to the V-shaped support via a round shoulder pin, and the other end is fixed to the V-shaped support via a locking screw;

[0016] Three rotating shafts are installed in a triangle shape on a V-shaped support and a V-shaped support pressure plate, with both ends locked by round nuts with locking washers, and bearing II is installed on the rotating shaft.

[0017] In some embodiments, the welding fixture assembly includes:

[0018] A clamping frame, wherein the front and rear ends of the clamping frame are equipped with two-end protruding shafts, one end of the two-end protruding shaft is connected to a half shaft, the half shaft is connected to the driving device, and the other end of the two-end protruding shaft is fixed with a distance sleeve;

[0019] A spiral locker, on which the two ends of the double-threaded coaxial rod are locked by nuts II;

[0020] L-shaped pressing plates, which are arranged in two rows, with the bottom of one end of the L-shaped pressing plate fixed to the clamping frame and the other end used to press the workpiece;

[0021] A wedge block, which is arranged between two rows of L-shaped pressure plates and is fastened to the clamping frame by a half-fastening screw;

[0022] Two positioning blocks are symmetrically arranged at the front and rear ends of the clamping frame, and the workpiece is fixed to the positioning blocks by positioning cylindrical pins.

[0023] In some embodiments, the support frame includes a frame body, and upper and lower mounting plates I are respectively provided at the upper and lower ends of the frame body. The upper mounting plate I is fixed to the driving device and the support set assembly through an internal threaded cylindrical locating pin, and the lower mounting plate I is fixed to the working base plate through a fastening bolt I and an adjusting screw.

[0024] In some embodiments, the support frame body 2 includes a frame body 2, and upper and lower mounting plates II are respectively provided at the upper and lower ends of the frame body 2. The upper mounting plate II is fixed to the support set assembly through an internal threaded cylindrical locating pin, and the lower mounting plate II is fixed to the working base plate through fastening bolts and adjusting screws.

[0025] In some embodiments, the driving device includes a linkage disk, a universal joint, a cross slider coupling, an involute spline sliding guide sleeve, an involute spline guide shaft, a knob plunger, a linkage shaft one and a linkage shaft two connected in sequence, the linkage disk is connected to the source single-function servo positioner, the linkage shaft two is connected to the welding clamping tooling assembly, the cross slider coupling is installed on a seat bearing, and the involute spline guide shaft passes through the baffle seat device.

[0026] In some embodiments, the baffle holder assembly comprises:

[0027] A support seat, the support seat is fixed to the support frame body 1 by fastening bolts, and a circular hole is provided on the support seat for allowing the involute spline guide shaft to pass through;

[0028] A plurality of spring plungers, the spring plungers being evenly arranged along the circular hole;

[0029] The step fixed shaft is locked on the support seat by a nut I, and a bearing is sleeved on the step fixed shaft.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. This application uses a multi-directional rotating trailer upper frame welding tooling to achieve multi-position rotating welding compared to manual multi-position rotating welding, and adjusts multiple screw welding production to have the characteristics of high efficiency, high quality, high economy, and greatly reduced welding labor intensity. At the same time, the rotation positioning accuracy is high, thereby ensuring the quality and precision of the product, and solving the problem of numerous production and processing procedures and long construction period for batch trailer upper frames.

[0032] 2. This application greatly improves production efficiency, namely, the precise assembly and rapid positioning welding of various parts, and the simultaneous rapid clamping and clamping on the welding fixture, and all welding operations at all workstations can be completed in one clamping.

[0033] 3. This application converts a single 85° limit positioner into a horizontal linkage drive to enable the welding clamping assembly to rotate freely with high precision. It is easy to use, accurate, stable and reliable.

[0034] 4. The trailer upper frame tooling of this application can be rotated quickly in multiple directions. It adopts a horizontal flat structure. After the linked rotation, each part has sufficient welding space. During the clamping process, it can be installed quickly and accurately. It is clamped by coaxial rods and fastening screws, which also plays a forced constraint role and anti-deformation measure during welding.

[0035] 5. The application can quickly rotate the trailer frame tooling in all directions, and the quick clamping time of the workpiece is 15 minutes. The actual welding time is about 28 minutes. The full-load production capacity of one shift reaches 10 pieces, which is about 50% higher than the traditional riveting and welding efficiency. At the same time, the staffing is reduced from three people to one ordinary operator, which effectively reduces the manufacturing cost.

[0036] 6. This application is easy to operate and has a wide range of applications. It can be promoted and used in the processing and manufacturing of large quantities of trailer frames. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A three-dimensional diagram of the trailer upper frame welding tooling capable of rapid multi-directional rotation provided by the utility model;

[0038] Figure 2 for Figure 1 A top view of the trailer upper frame welding tooling capable of rapid multi-directional rotation is shown;

[0039] Figure 3 for Figure 1 The structural function diagram of the source single-function servo positioner shown;

[0040] Figure 4 for Figure 1 A schematic structural diagram of the driving device shown;

[0041] Figure 5 for Figure 1 A schematic structural diagram of the support frame body 1 shown;

[0042] Figure 6 for Figure 1 A schematic structural diagram of the support frame body 2 shown;

[0043] Figure 7 for Figure 1 The structural schematic diagram of the working base plate shown;

[0044] Figure 8 for Figure 1 The structural diagram of the welding clamping fixture assembly shown;

[0045] Figure 9 for Figure 1 A schematic structural diagram of the support set assembly shown;

[0046] Figure 10 for Figure 4 The structural diagram of the universal joint shown;

[0047] Figure 11 for Figure 4 The schematic diagram of the structure of the Oldham coupling shown in FIG.

[0048] Figure 12 for Figure 4 A schematic structural diagram of the support sleeve assembly shown;

[0049] Figure 13 for Figure 4 The structural diagram of the involute spline sliding guide sleeve shown;

[0050] Figure 14 for Figure 4 The structural diagram of the linkage disk shown;

[0051] Figure 15 for Figure 4 The structural diagram of the PDR45 bearing unit shown in the figure;

[0052] Figure 16 It is a structural diagram of the frame on the welding workpiece;

[0053] In the figure: 1-source single-function servo positioner, 1.1-rotating disk, 1.2-mounting cylindrical pin, 1.3-hexagon socket head fastening screw, 2-driving device, 2.1-linkage disk, 2.1.1-fastening screw I, 2.1.2-internal thread cylindrical pin, 2.2-universal joint, 2.2.1-cross block, 2.2.2-intersecting tapered pin, 2.2.3-locking spring ring, 2.3-Oldham coupling, 2.3.1-half coupling, 2.3.2-Oldham, 2.3.3-set screw I, 2.4-bearing with seat, 2. 4.1-Set screw II, 2.4.2-Oil cup, 2.4.3-Fastening screw II, 2.5-Baffle seat assembly, 2.5.1-Support seat, 2.5.2-Nut I, 2.5.3-Step fixed shaft, 2.5.4-Bearing I, 2.5.5-Spring plunger, 2.5.6-Fastening bolt, 2.6-Involute spline sliding guide sleeve, 2.6.1-Hinged cylindrical pin, 2.7-Involute spline guide shaft, 2.8-Knob plunger, 2.9-Linkage shaft 1, 2.10-Linkage shaft 2, 3-Support frame 1, 3.1 -Frame 1, 3.2-Internal thread cylindrical locating pin, 3.3-Fastening bolt I, 3.4-Adjusting screw, 4-Welding clamping fixture assembly, 4.1-Extending shaft at both ends, 4.2-Wedge block, 4.3-Half-fastening screw, 4.4-Nut II, 4.5-Double-headed threaded coaxial rod, 4.6-Adjusting screw, 4.7-Spiral locker, 4.8-Locate cylindrical pin, 4.9-L-shaped pressure plate, 4.10-Distance sleeve, 4.11-Axle, 5-Working base plate, 5.1-Base panel 1, 5.2-Base panel 2, 5.3-Base panel 3. 5.4-Expansion bolt, 5.5-Cylindrical pin, 6-Support set assembly, 6.1-V-type support, 6.2-Rotation shaft, 6.3-Round nut, 6.4-Locking washer, 6.5-Shoulder pin, 6.6-V-type support pressure plate, 6.7-Locking screw, 6.8-Internally threaded cylindrical pin, 6.9-Fastening bolt II, 6.10-Bearing II, 7-Support frame II, 7.1-Frame II, 8-Workpiece, 8.1-Bent plate assembly, 8.2-Rectangular tube, 8.3-Cylinder left and right support plates, 8.4-Rib plate, 8.5-Upper rib plate. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments; based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0055] like Figure 1As shown, a multi-directional rapid rotation trailer upper frame welding tool comprises:

[0056] A welding clamping fixture assembly 4, wherein the welding clamping fixture assembly 4 is used to clamp a workpiece 8, and both ends of the welding clamping fixture assembly 4 are mounted on the supporting set assembly 6;

[0057] Support frame 1 3 and support frame 2 7, the support frame 1 3 and support frame 2 7 are respectively arranged at both ends of the welding clamping tooling assembly 4, for installing the support set assembly 6;

[0058] A single-function servo positioner 1 is connected to a welding clamping fixture assembly 4 via a driving device 2 and is used to drive the welding clamping fixture assembly 4 to rotate.

[0059] It also includes a working base plate 5 for installing the support frame 1 3, the support frame 2 7 and the single-function servo positioner 1. Figure 7 As shown, the working base plate 5 includes:

[0060] Interconnected base panel 1 5.1, base panel 2 5.2 and base panel 3 5.3;

[0061] The joints between base panel 1 5.1 and base panel 2 5.2, and between base panel 2 5.2 and base panel 3 5.3 are provided with stoppers and pin holes to facilitate installation;

[0062] The panel is provided with a multi-station cooperative installation cylindrical pin 5.5 for accurately positioning the support frame 1 3 and the support frame 2 7.

[0063] Specifically, the working base plate 5 is a split design, and the connection between base panel 1 5.1 and base panel 2 5.2, and base panel 2 5.2 and base panel 5.3 is provided with stoppers and pin holes to facilitate installation; multi-station installation cylindrical pins 5.5 are provided on the panel to accurately position the above components, and the base plate is fastened and locked by expansion bolts 5.4.

[0064] like Figure 5 As shown, the support frame 3 includes a frame 3.1, and the upper and lower mounting plates I are respectively provided at the upper and lower ends of the frame 3.1. The upper mounting plate I is fixed to the drive device 2 and the support set assembly 6 through an internal threaded cylindrical locating pin 3.2, and the lower mounting plate I is installed and fixed to the working base plate 5 through a fastening bolt I3.3 and an adjusting screw 3.4.

[0065] like Figure 6As shown, the support frame body 2 7 includes a frame body 2 7.1, and upper and lower mounting plates II are respectively provided at the upper and lower ends of the frame body 2 7.1. The upper mounting plate II is fixed to the support set assembly 6 by an internal threaded cylindrical locating pin 3.2, and the lower mounting plate II is fixed to the working base plate 5 by a fastening bolt 3.3 and an adjusting screw 3.4.

[0066] The support frame 1 3 and the support frame 2 7 mainly support the above-mentioned components and accurately position them through pin holes. The support frame 2 7 is movable. When welding different components, its position will be adjusted and coincide with the specified position of the working base plate 5; when assembling the frame 1 3.1 and the frame 2 7.1 and the base plate 5, the height difference needs to be adjusted by adjusting the screw 3.4, and after being assembled into place, it can be locked by tightening the screw 3.3.

[0067] like Figure 9 As shown, the support set assembly 6 includes:

[0068] V-type support 6.1;

[0069] A V-shaped support pressure plate 6.6, one end of which is rotatably connected to the V-shaped support 6.1 via a round shoulder pin 6.5, and the other end is fixed to the V-shaped support 6.1 via a locking screw 6.7;

[0070] Three rotating shafts 6.2 are installed in a triangle shape on a V-shaped support 6.1 and a V-shaped support pressure plate 6.6, with both ends locked by round nuts 6.3 with locking washers 6.4, and bearings II6.10 are installed on the rotating shafts 6.2.

[0071] The support assembly 6 includes a V-shaped support plate 6.6, which rotates and compresses the extended shaft 4.1 of the welded clamping fixture 4 via a round shoulder pin 6.5. KA204 bearings 6.10 at each end prevent axial movement of the spacer sleeve 4.10. The rotating shaft 6.2 is secured at both ends by round nuts 6.3 with retaining washers 6.4. The V-shaped support 6.1 is secured in place by an internally threaded cylindrical pin 6.8 and locked with a fastening bolt 6.9. During installation and removal of the welded clamping fixture, tightening and loosening are accomplished via a locking screw 6.7. The spacing between the KA204 bearings 6.10 in the support assembly 6 is ensured by stepped inner bushings to ensure dimensional consistency.

[0072] like Figure 4As shown, the driving device 2 includes a linkage disk 2.1, a universal joint 2.2, a cross slider coupling 2.3, an involute spline sliding guide sleeve 2.6, an involute spline guide shaft 2.7, a knob plunger 2.8, a linkage shaft 1 2.9 and a linkage shaft 2 2.10, which are connected in sequence. The linkage disk 2.1 is connected to the source single-function servo positioner 1, the linkage shaft 2 2.10 is connected to the welding clamping tooling assembly 4, the cross slider coupling 2.3 is installed on the seat bearing 2.4, and the involute spline guide shaft 2.7 passes through the baffle seat device 2.5.

[0073] like Figure 12 As shown, the baffle seat device 2.5 includes:

[0074] Support seat 2.5.1, said support seat 2.5.1 is fixed to the support frame body 3 by fastening bolts 2.5.6, and a circular hole is provided on the support seat 2.5.1 for passing the involute spline guide shaft 2.7;

[0075] A plurality of spring plungers 2.5.5, said spring plungers 2.5.5 being evenly arranged along the circular hole;

[0076] The step fixed shaft 2.5.3 is locked on the support seat 2.5.1 through a nut I2.5.2, and a bearing 2.5.4 is sleeved on the step fixed shaft 2.5.3.

[0077] The universal joint 2.2 is connected to the 85° linkage plate 1.1 of the source single-function servo positioner to compensate for the deviation of different rotation angles and protect the source single-function positioner 1 from being blocked during the rotation process, ensuring safe and stable operation; the linkage plate 2 in the drive device 2 is matched with the servo positioner through the core shaft, and then positioned by the internal threaded cylindrical pin 2.1.2, and then tightened with the fastening screw 2.1.1 ( Figure 14 ). The universal joint 2.2 in the driving device 2 is a high-precision rotating mechanism connection part, such as Figure 10 As shown, the rotation clearance of the middle cross block 2.2.1 can reach an accuracy of 0.05mm; one end is connected to the linkage disk 2.1, and the intersecting conical pin 2.2.2 cooperates and penetrates to lock the locking spring ring 2.2.3 to prevent it from falling during operation; the other end is connected to the linkage shaft 2 2.10. Similarly, the intersecting conical pin cooperates and penetrates to lock the locking spring ring, ensuring that there is no obstruction or abnormal sound during the rotation process. Figure 11As shown, the Oldham coupling 2.3 is a high-precision, dedicated connection component that can compensate for large concentricity deviations during rotation, ensuring that there is no resistance during the normal rotation of the servo positioner 1. Two sets of Oldham couplings 2.3 are configured, each of which corrects the coaxiality of the devices at both ends during rotation. The middle Oldham coupling 2.3.2 is made of copper, and the two half couplings 2.3.1 are made of 304 stainless steel and have oil filling holes to ensure durability and resistance to wear. The PDR45 seat bearing 2.4 in the middle is used to connect the cross slider coupling 2.3 at both ends through the linkage shaft 2.9, and is fastened and locked by the fastening screws 2.4.1. At the same time, it is fixed to the support frame 3 by bolts 2.4.3. The PDR45 seat bearing 2.4 is pre-set with an oil cup 2.4.2 for easy maintenance; two sets of KA201 large clearance bearings 2.5.4 are installed on the baffle seat device 2.5 to support the cross slider coupling 2.3, which is positioned and locked by the step fixing shaft 2.5.3 and the nut 2.5.2. The vertical position is evenly distributed. Four SPH8-3 spring plungers 2.5.5 adjust the Oldham coupling 2.3 perpendicular to the base surface, ensuring the axis of rotation remains fixed. The support base 2.5.1 is secured to the support frame 3 via setscrews 2.5.6. The involute spline guide sleeve 2.6 slides precisely with the involute spline guide shaft 2.7, ensuring zero rotational play. A PMXK8M knob plunger 2.8 is mounted on the involute spline guide sleeve 2.6. When the sleeve reaches the designated position, it locks in place, ensuring a secure connection. When the involute spline guide sleeve 2.6 is connected to the axle 4.11, its keyway engages with the keyway, and a secondary positioning and locking mechanism is provided via a reamed cylindrical pin 2.6.1, ensuring a secure connection and reliable rotation.

[0078] like Figure 8 As shown, the welding clamping fixture assembly 4 includes:

[0079] A clamping frame 4.12 is provided with two-end extending shafts 4.1 at the front and rear ends of the clamping frame 4.12. One end of the two-end extending shaft 4.1 is connected to a half shaft 4.11, which is connected to the drive device 2. The other end of the two-end extending shaft 4.1 is fixed to a spacer sleeve 4.10.

[0080] A screw locker 4.7, on which nuts II 4.4 are used to lock the two ends of the double-threaded coaxial rod 4.5;

[0081] L-shaped pressing plates 4.9, which are arranged in two rows, with the bottom of one end of the L-shaped pressing plate 4.9 fixed to the clamping frame 4.12, and the other end used to press the workpiece 8;

[0082] Wedge block 4.2, which is arranged between two rows of L-shaped pressure plates 4.9 and is locked to the clamping frame 4.12 by half-fastening screws 4.3;

[0083] Two positioning blocks 4.13 are symmetrically arranged at the front and rear ends of the clamping frame 4.12, and the workpiece 8 is fixed to the positioning blocks 4.13 by positioning cylindrical pins 4.8.

[0084] like Figure 16 As shown, the workpiece 8 includes rectangular tubes 8.2 symmetrically arranged on both sides, bent plate assemblies 8.1 are provided at both ends of the rectangular tubes 8.2, the middle part of the rectangular tubes 8.2 is the left and right support plates 8.3 of the cylinder body, the ribs 8.4 are between the rectangular tubes 8.2 on both sides, and an upper rib 8.5 is also provided on the outer side of the rectangular tube 8.2 on one side.

[0085] Specifically, the welding clamping fixture assembly 4 includes a double-headed threaded coaxial rod 4.5 for connecting and fixing the R-2910 upper frame workpiece, determining the exact position, and locking it with nuts 4.4 at both ends to rigidly position and prevent welding deformation; the two ends of the double-headed threaded coaxial rod 4.5 are matched with the U-groove tolerance, and the middle section has a large gap, which is convenient for installation and disassembly; the inner spacing positioning of the workpiece is completed by a wedge block 4.2, that is, the wedge block 4.2 is placed in the specified position, and the middle piece is tightened to the limit position by half-fastening the screws 4.3; the inner spacing of the left and right cylinder support plates of the workpiece is equipped with an M39 spiral locker 4.7 to support the inner spacing to ensure that the workpiece becomes an integral frame structure, thereby greatly reducing the amount of welding deformation; the R of the workpiece -3602B bending plate assembly 8.1 is positioned at both ends by locating cylindrical pins 4.8, ensuring consistent position during repeated installation. The distance spacer 4.10 in the welding clamping fixture assembly 4 is made of 42CrMo and has undergone a tempering heat treatment to improve strength and rigidity, extending its service life. Furthermore, this distance spacer 4.10 is connected to the extension shaft 4.1 at both ends through cylindrical pins to ensure that the position does not shift. The adjustment screw 4.6 is mainly used to adjust the U-slot position of the workpiece and fix it. Tightening the screws on the L-shaped pressure plate 4.9 rigidly clamps the workpiece to prevent welding deformation. The half shaft 4.11 at the left end is connected to the extension shaft 4.1 by a cylindrical pin and matches the involute spline guide sleeve 2.6 during installation.

[0086] The implementation process of this utility model:

[0087] After rotating the servo positioner 1 to a limit angle of 85°, connect it to the drive device via the linkage disk 1.1;

[0088] Place the upper frame 8 of the workpiece R-2910 on the welding fixture and position and tighten it using the double-threaded coaxial rod 4.5;

[0089] Place the welding clamp assembly 4 in the support sleeve assembly 6, and use the distance sleeve 4.10 to determine the position to ensure there is no axial movement;

[0090] Use the locking screws 6.7 to press the V-shaped support plate 6.6 in the support set assembly 6 against the two ends of the extended shaft 4.1 to prevent it from jumping during rotation;

[0091] The manually sliding involute spline sliding guide sleeve 2.6 is engaged with the half shaft 4.11 in the welding clamping assembly 4 through the keyway and key bar, and then locked by the cylindrical pin with a hinged hole;

[0092] Repeat step 1 to install the servo positioner. Position it by installing the cylindrical pin 1.2 and then lock it with the hexagon socket head screw 1.3 to ensure reliability and stability.

[0093] Repeat step 1 to adjust the rotational freedom of universal joint 2 to ensure that there is no obstruction or deformation during rotation. This is mainly done by fine-tuning the gap using the stainless steel adjustment shims.

[0094] Repeat step 1 and install linkage shaft 2.10 to ensure that the extension at both ends is consistent and balanced, and that the torque is evenly distributed during rotation without deviation.

[0095] Repeat step 1. When installing the Oldham coupling 2.3, add grease in advance to increase the service life of the parts.

[0096] Repeat step 1. Ensure that the KA201 bearing 2.5.1 in the baffle seat assembly 2.5 is evenly fitted against the surface of the Oldham coupling 2.3 during rotation. The ball head of the SPH8-3 spring plunger 2.5.5 is in close contact with the coupling half 2.3.1 and is evenly stressed. Ensure that the Oldham coupling 2.3 is perpendicular to the base surface.

[0097] Repeat step 1. Before installation, slide the PMXK8M knob plunger 2.8 to the leftmost pin hole and lock it. After the welding clamping fixture assembly 4 is installed in place, slide the involute spline sliding guide sleeve 2.6 with the PMXK8M knob plunger 2.8 to the rightmost pin hole and lock it, and connect it to the half shaft 4.11.

[0098] Repeat step 2 and use a large wrench to install the M39 screw locker between the left and right support plates 8.3 of the workpiece cylinder. During the tightening process, ensure that it is at the engraved position to avoid excessive loosening or tightening that may affect welding deformation.

[0099] Repeat step 4 and adjust the 6.10 inner gear spacing of the KA204 bearings on both sides to meet the technical requirements using stainless steel adjusting washers. Lock them with round nuts and lock washers at both ends to ensure that the inner gear spacing dimensions of the three groups are within the technical tolerance range.

[0100] Repeat step 4 and tighten the inner spacing of the workpiece rectangular tube 8.2 by using the wedge block 4.2. Also ensure that it is on the engraved line and does not go beyond the line to prevent the workpiece from being deformed during clamping.

[0101] Welding is carried out within a reasonable space, welding deformation is strictly controlled, and technical requirements are met.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-directional rapid rotation trailer frame welding tool, characterized in that: include: A welding clamping fixture assembly (4), wherein the welding clamping fixture assembly (4) is used to clamp a workpiece (8), and both ends of the welding clamping fixture assembly (4) are mounted on the supporting sleeve assembly (6); Support frame body 1 (3) and support frame body 2 (7), wherein the support frame body 1 (3) and support frame body 2 (7) are respectively arranged at two ends of the welding clamping tool assembly (4) and are used for installing the support set assembly (6); A single-function servo positioner (1) is provided, wherein the single-function servo positioner (1) is connected to a welding clamping fixture assembly (4) via a driving device (2) and is used to drive the welding clamping fixture assembly (4) to rotate.

2. The multi-directional fast-rotating trailer upper frame welding tool according to claim 1 is characterized in that: It also includes a working base plate (5) for installing the support frame 1 (3), the support frame 2 (7) and the source single-function servo positioner (1), and the working base plate (5) includes: Base panel one (5.1), base panel two (5.2) and base panel three (5.3) connected to each other; The connection between base panel 1 (5.1) and base panel 2 (5.2), and between base panel 2 (5.2) and base panel 3 (5.3) is provided with stoppers and pin holes to facilitate installation; A multi-station matching cylindrical pin (5.5) is provided on the panel for accurately positioning the support frame body 1 (3) and the support frame body 2 (7).

3. The multi-directional fast-rotating trailer upper frame welding tool according to claim 1 is characterized in that: The support set component (6) includes: V-shaped support (6.1); A V-shaped support pressure plate (6.6), one end of which is rotatably connected to the V-shaped support (6.1) via a round shoulder pin 6.5, and the other end of which is fixed to the V-shaped support (6.1) via a locking screw (6.7); Three rotating shafts (6.2), the three rotating shafts (6.2) are installed on the V-shaped support (6.1) and the V-shaped support pressure plate (6.6) in a triangle shape, and the two ends are locked by round nuts (6.3) with stop washers (6.4), and bearing II (6.10) is installed on the rotating shaft (6.2).

4. The multi-directional fast-rotating trailer upper frame welding tool according to claim 1 is characterized in that: The welding clamping fixture assembly (4) comprises: A clamping frame (4.12), wherein two-end extending shafts (4.1) are installed at the front and rear ends of the clamping frame (4.12), wherein one end of the two-end extending shaft (4.1) is connected to a half shaft (4.11), the half shaft (4.11) is connected to the driving device (2), and the other end of the two-end extending shaft (4.1) is fixed to a distance sleeve (4.10); A spiral locker (4.7), wherein the spiral locker (4.7) is used to lock the two ends of the double-threaded coaxial rod (4.5) through a nut II (4.4); L-shaped pressing plates (4.9), wherein the L-shaped pressing plates (4.9) are arranged in two rows, the bottom of one end of the L-shaped pressing plates (4.9) is fixed to the clamping frame (4.12), and the other end is used to press the workpiece (8); A wedge block (4.2), the wedge block (4.2) being arranged between two rows of L-shaped pressure plates (4.9), the wedge block (4.2) being locked on the clamping frame (4.12) by means of a half-fastening screw (4.3); Two positioning blocks (4.13) are symmetrically arranged at the front and rear ends of the clamping frame (4.12), and the workpiece (8) is fixed to the positioning blocks (4.13) via positioning cylindrical pins (4.8).

5. The multi-directional fast-rotating trailer upper frame welding tool according to claim 1 is characterized in that: The support frame body 1 (3) includes a frame body 1 (3.1), and upper and lower mounting plates I are respectively provided at the upper and lower ends of the frame body 1 (3.1). The upper mounting plate I is fixed to the driving device (2) and the supporting set component (6) through an internal threaded cylindrical positioning pin (3.2), and the lower mounting plate I is fixed to the working base plate (5) through a fastening bolt I (3.3) and an adjusting screw (3.4).

6. The multi-directional fast-rotating trailer upper frame welding tool according to claim 1 is characterized in that: The support frame body 2 (7) includes a frame body 2 (7.1), and upper and lower mounting plates II are respectively provided at the upper and lower ends of the frame body 2 (7.1). The upper mounting plate II is fixed to the support set component (6) through an internal thread cylindrical positioning pin (3.2), and the lower mounting plate II is fixed to the working base plate (5) through a fastening bolt I (3.3) and an adjustment screw (3.4).

7. The multi-directional fast-rotating trailer upper frame welding tool according to claim 1 is characterized in that: The driving device (2) comprises a linkage disk (2.1), a universal joint (2.2), a cross slider coupling (2.3), an involute spline sliding guide sleeve (2.6), an involute spline guide shaft (2.7), a knob plunger (2.8), a linkage shaft 1 (2.9) and a linkage shaft 2 (2.10) which are connected in sequence. The linkage disk (2.1) is connected to the source single-function servo positioner (1), the linkage shaft 2 (2.10) is connected to the welding clamping fixture assembly (4), the cross slider coupling (2.3) is mounted on a seat bearing (2.4), and the involute spline guide shaft (2.7) passes through the baffle seat device (2.5).

8. The multi-directional fast-rotating trailer upper frame welding tool according to claim 7 is characterized in that: The baffle seat device (2.5) comprises: A support seat (2.5.1), wherein the support seat (2.5.1) is fixed to the support frame body (3) by fastening bolts (2.5.6), and a circular hole is provided on the support seat (2.5.1) for allowing the involute spline guide shaft (2.7) to pass through; A plurality of spring plungers (2.5.5), wherein the spring plungers (2.5.5) are evenly arranged along the circular hole; A step fixed shaft (2.5.3) is locked on the support seat (2.5.1) through a nut I (2.5.2), and a bearing (2.5.4) is sleeved on the step fixed shaft (2.5.3).

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