Positioning welding equipment for heavy-load AGV (Automatic Guided Vehicle) platform

Abstract

The invention relates to the technical field of positioning and welding equipment, and discloses positioning and welding equipment for a heavy-load AGV platform. The sliding directions of the two sliding mounting plates are kept opposite, the two sliding mounting plates are close to each other, and the multiple positioning clamping jaws are close to the center positions of the positioning mounting plates correspondingly to jointly clamp an AGV frame; then the distance between the auxiliary support and the bottom end of the positioning support can be driven by the separating mechanism to extend to generate a mounting distance, and then the auxiliary clamping jaw can clamp the parts, so that the positions of the parts and the AGV frame are correspondingly fixed, positioning between the parts and the welding main body is effectively carried out, and the welding efficiency is improved. And the lifting mechanism drives the positioning support to ascend and descend under supporting of the fixing support, the AGV frame clamped by the positioning support and the auxiliary support and all parts clamped by the positioning support and the auxiliary support are synchronously lifted to the height needed by welding, and therefore it can be guaranteed that the parts and the welding body are accurately positioned, and meanwhile later welding can be facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of positioning welding equipment, and in particular to a positioning welding equipment for a heavy-load AGV platform. Background Art

[0002] At present, the material transfer of large parts in workshops relies on the coordination of cranes and flatbed trucks. At least one lifting operator and one crane operator are required to work each time. Sometimes, the materials occupy the crane or flatbed truck, which seriously affects the processing progress and subsequent other work arrangements. Therefore, by using heavy-duty AGVs for intelligent unmanned transfer, the material operation efficiency is improved, manual participation is reduced, and the development of processing automation is promoted. The structure of heavy-duty AGVs is more solid and complex to ensure that it can maintain a stable and reliable operating state while bearing a large load; the design focus of heavy-duty AGVs is on key parts such as its body frame, drive system, navigation and control system, safety protection devices, and battery and energy systems. These designs together ensure its efficient operation in various industrial environments.

[0003] Among them, heavy-load AGV plays an important role in the production process of roller press. Heavy-load AGV can be used to transport prepared materials to the feed area of ​​the roller press, and to transport the rolled products to subsequent processing or storage links. Through automated handling and scheduling, manual operations are reduced, production efficiency is improved, and cost investment is reduced. Moreover, by integrating the heavy-load AGV with the control system of the roller press, the AGV can be synchronized with the production process to ensure the continuity and timeliness of material supply.

[0004] The overall body frame of the heavy-loaded AGV platform adopts a skeleton-type welded structure welded from steel plates. When producing the overall body frame of the AGV platform, the precision of welding can effectively disperse the load of the overall body of the heavy-loaded AGV platform, and can effectively disperse the load evenly and effectively ensure that the local pressure can be within the range of local strength, effectively ensuring the service life and use load of the overall body of the heavy-loaded AGV platform. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a positioning welding device for a heavy-load AGV platform.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A positioning welding device for a heavy-loaded AGV platform comprises: a fixed bracket, a positioning bracket is arranged on one side of the fixed bracket, a lifting mechanism is arranged inside the fixed bracket, and the lifting mechanism can drive the positioning bracket to rise and fall under the support of the fixed bracket; an auxiliary bracket is fixedly arranged by a separation mechanism directly below the positioning bracket, and the separation mechanism can drive the auxiliary bracket to generate an installation spacing between the bottom end of the positioning bracket; the positioning bracket comprises a positioning mounting plate and two sliding mounting plates, the two sliding mounting plates can generate relative sliding with the positioning mounting plate, and the sliding directions of the two sliding mounting plates remain opposite; positioning claws are respectively arranged at the bottom ends of the two sliding mounting plates, and a plurality of positioning claws can respectively approach the central position of the positioning mounting plate to clamp the AGV frame together; the auxiliary bracket comprises an auxiliary frame and two auxiliary clamping arms, the two auxiliary clamping arms can slide relative to each other in opposite directions inside the auxiliary frame, and the bottom ends of the auxiliary clamping arms are provided with auxiliary clamping claws, and the two auxiliary clamping claws corresponding to the two auxiliary clamping arms can clamp the parts together.

[0008] Preferably, a sliding track is provided at the top of the positioning mounting plate, and a sliding block is provided at the bottom of the sliding mounting plate, the sliding block is fitted with the sliding track, and the sliding mounting plate slides under the restriction between the sliding block and the sliding track.

[0009] Preferably, a sliding drive cylinder is provided at the top of the positioning mounting plate, and the movable end of the sliding drive cylinder is fixed to any one of the sliding mounting plates; a synchronous drive unit is provided at the center of the top of the positioning mounting plate, and the synchronous drive unit includes a central fixed rotating shaft and a rotating connecting plate, the center of the rotating connecting plate is rotatably connected to the central fixed rotating shaft, and the two ends of the rotating connecting plate are respectively rotatably connected with driving connecting rods, and the end of the driving connecting rod away from the rotating connecting plate is rotatably connected to the sliding mounting plate.

[0010] Preferably, the extension and retraction of the movable end of the sliding drive cylinder can drive the sliding mounting plate fixedly connected to the movable end of the sliding drive cylinder to move, and drive the driving connecting rod on the same side to drive the sliding mounting plate to rotate; the sliding mounting plate can drive the driving connecting rod on the other side to rotate, and drive the sliding mounting plate on the other side to move in the opposite direction.

[0011] Preferably, the positioning clamp includes a clamp shaft, a clamp arm and a limit rod; the clamp arm includes two connecting arms, which are vertically arranged between the two connecting arms, and one end of the two connecting arms away from the clamp shaft is rotatably provided with a clamping roller; the clamp arm can rotate around the clamp shaft under the restriction of the limit rod, and adapt to the shape of the AGV frame through the rotation of the clamp arm.

[0012] Preferably, the lifting mechanism includes a lifting motor, a reduction gear box and two output connecting rods, and the two output connecting rods are respectively fixed between two output shafts on both sides of the reduction gear box. The lifting motor can reduce the rotation speed output by the lifting motor and then output rotation with the same speed to the two output connecting rods on both sides of the lifting motor.

[0013] Preferably, a lifting drive mechanism is provided at the end of the output connecting rod away from the reduction gear box, and the lifting drive mechanism includes a driving sprocket, a driving chain, a lifting connecting block and a driven sprocket; the driving chain is respectively sleeved on the outside of the driving sprocket and the driven sprocket, and the end of the output connecting rod away from the reduction gear box is fixedly transmitted to the corresponding driving sprocket, the lifting connecting block is fixed on the outside of the driving chain, and the two lifting connecting blocks are respectively fixed between the two sides of the positioning bracket.

[0014] Preferably, the rotation of the lifting motor through the output of the reduction gearbox can simultaneously drive the two driving sprockets to rotate at the same speed, and drive the two driving chains to rotate at the same linear speed. The lifting connecting block can slide up and down with the driving chain under the restriction of the limiting track, driving the positioning bracket to rise and fall.

[0015] Preferably, a plurality of auxiliary driving cylinders are arranged inside the auxiliary frame, and the two ends of each auxiliary clamping arm on the side away from the other auxiliary clamping arm are respectively fixed to the movable end of the auxiliary driving cylinder, and each auxiliary driving cylinder is synchronously extended and retracted to drive the auxiliary clamping arms to slide relative to each other in opposite directions inside the auxiliary frame; an auxiliary clamping groove is provided at the bottom end of the auxiliary clamping arm, and the end of the auxiliary clamping jaw close to the auxiliary clamping arm can be embedded in the auxiliary clamping groove, and the auxiliary clamping jaw can slide under the restriction of the auxiliary clamping groove.

[0016] Preferably, the separation mechanism includes a plurality of separation cylinders, a fixed end of each of the separation cylinders is fixed to the positioning mounting plate, and a movable end of each of the separation cylinders is fixed to the auxiliary frame; the projection area of ​​the auxiliary frame is smaller than the projection area of ​​the positioning mounting plate, and the movable ends of each of the separation cylinders can synchronously extend and retract to jointly drive the distance between the auxiliary bracket and the bottom end of the positioning bracket to be adjusted.

[0017] Compared with the prior art, the present invention provides a positioning welding device for a heavy-load AGV platform, which has the following beneficial effects:

[0018] 1. This positioning welding equipment for heavy-loaded AGV platforms has two sliding mounting plates whose sliding directions are opposite and close to each other, and a plurality of positioning claws approach the central position of the positioning mounting plates respectively, and clamp the AGV frame together; then, the separation mechanism can drive the auxiliary bracket to extend the distance between the bottom ends of the positioning bracket to produce the installation spacing, and then, by adjusting the positions of the two auxiliary clamping arms, the parts can be clamped by the auxiliary clamping claws, so that the positions of each part and the AGV frame can be fixed accordingly, so that the positioning between the parts and the welding body can be effectively performed, and the positioning bracket is driven to rise and fall under the support of the fixed bracket by the lifting mechanism, and the positioning bracket and the auxiliary bracket are driven to rise synchronously, so that the AGV frame and each part clamped by the positioning bracket and the auxiliary bracket can be synchronously raised to the height required for welding, so that the accurate positioning between the parts and the welding body can be ensured, and the subsequent welding can be facilitated.

[0019] 2. This positioning welding equipment for heavy-load AGV platform drives the sliding mounting plate fixedly connected to the moving end of the sliding driving cylinder to move through the telescopic movement of the moving end of the sliding driving cylinder, and drives the driving connecting rod on the same side to drive the sliding mounting plate to rotate; the sliding mounting plate can drive the driving connecting rod on the other side to rotate, and drive the sliding mounting plate on the other side to move in the opposite direction, so as to drive the positioning claws to approach the central position of the positioning mounting plate respectively, and when each positioning claw comes into contact with the AGV frame, the clamping rollers which are vertically arranged between the two connecting arms and are rotatably arranged at the ends of the two connecting arms away from the claw shaft. The clamping claw arm can rotate around the clamping claw axis under the restriction of the limit rod. While adapting to the corners of the AGV frame, it can clamp the corners of the AGV frame together through two connecting arms, and stably fix the AGV frame in the center of the bottom end of the positioning mounting plate. The clamping roller and the material of the clamping roller can convert the corners of the AGV frame into a soft connection and a rotating connection to avoid damage to the AGV frame. The clamping claw arm rotates around the clamping claw axis under the restriction of the limit rod to avoid unstable clamping caused by excessive deflection of the rotating clamp arm, thereby ensuring the stability of clamping and positioning during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is one of the three-dimensional structural schematic diagrams of a positioning welding device for a heavy-load AGV platform of the present invention;

[0021] Figure 2 This is the second overall exploded schematic diagram of a positioning welding device for a heavy-load AGV platform of the present invention;

[0022] Figure 3 It is a three-dimensional structural schematic diagram of an AGV frame welded by a positioning welding device for a heavy-load AGV platform of the present invention;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of a fixing bracket and a lifting mechanism of a positioning welding device for a heavy-load AGV platform of the present invention;

[0024] Figure 5 This is one of the three-dimensional structural schematic diagrams of a positioning bracket of a positioning welding device for a heavy-load AGV platform of the present invention;

[0025] Figure 6 This is a second three-dimensional structural schematic diagram of a positioning bracket of a positioning welding device for a heavy-load AGV platform of the present invention;

[0026] Figure 7 The present invention is a three-dimensional structural schematic diagram of an auxiliary bracket and a separation mechanism of a positioning welding device for a heavy-load AGV platform.

[0027] In the figure: 1, fixed bracket; 11, limiting rail; 2, positioning bracket; 21, positioning mounting plate; 211, sliding rail; 22, sliding mounting plate; 221, sliding block; 23, positioning clamp; 231, clamp shaft; 232, clamp arm; 2321, connecting arm; 2322, clamping roller; 233, limiting rod; 24, sliding drive cylinder; 25, synchronous drive unit; 251, central fixed shaft; 252, rotating connection Plate; 253, driving connecting rod; 3, lifting mechanism; 31, lifting motor; 32, reduction box; 33, output connecting rod; 34, lifting driving mechanism; 341, driving sprocket; 342, driving chain; 343, lifting connecting block; 344, driven sprocket; 4, auxiliary bracket; 41, auxiliary frame; 411, auxiliary driving cylinder; 42, auxiliary clamping arm; 421, auxiliary clamping groove; 43, auxiliary clamping claw; 5, separation mechanism; 51, separation cylinder. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a positioning welding device for a heavy-load AGV platform.

[0030] Example 1: Please refer to Figure 1-Figure 7 A positioning welding device for a heavy-load AGV platform comprises: a fixed bracket 1, a positioning bracket 2 is arranged on one side of the fixed bracket 1, a lifting mechanism 3 is arranged inside the fixed bracket 1, and the lifting mechanism 3 can drive the positioning bracket 2 to rise and fall under the support of the fixed bracket 1; an auxiliary bracket 4 is fixedly arranged directly below the positioning bracket 2 through a separation mechanism 5, and the separation mechanism 5 can drive the auxiliary bracket 4 to generate an installation spacing with the bottom end of the positioning bracket 2; the positioning bracket 2 comprises a positioning mounting plate 21 and two sliding mounting plates 22, and the two sliding mounting plates 22 can be aligned with the positioning mounting plate 21 Relative sliding occurs between them, and the sliding directions of the two sliding mounting plates 22 remain opposite; the bottom ends of the two sliding mounting plates 22 are respectively provided with positioning claws 23, and multiple positioning claws 23 can approach the central position of the positioning mounting plate 21 respectively to clamp the AGV frame together; the auxiliary bracket 4 includes an auxiliary frame 41 and two auxiliary clamping arms 42, and the two auxiliary clamping arms 42 can slide relative to each other in opposite directions inside the auxiliary frame 41, and the bottom ends of the auxiliary clamping arms 42 are provided with auxiliary clamping claws 43, and the two auxiliary clamping claws 43 corresponding to the two auxiliary clamping arms 42 can clamp the parts together.

[0031] A sliding track 211 is disposed at the top of the positioning mounting plate 21 , and a sliding block 221 is disposed at the bottom of the sliding mounting plate 22 . The sliding block 221 fits with the sliding track 211 , and the sliding mounting plate 22 slides under the restriction between the sliding block 221 and the sliding track 211 .

[0032] When in use, the lifting mechanism 3 can first be used to drive the positioning bracket 2 to rise and fall under the support of the fixed bracket 1, so that the positioning bracket 2 is moved to the bottom position, and then the separation mechanism 5 can be used to drive the auxiliary bracket 4 and the bottom end of the positioning bracket 2 to shorten the distance to the shortest, and the two auxiliary clamping arms 42 can slide relative to each other in opposite directions inside the auxiliary frame 41 to expand the distance between the two auxiliary clamping arms 42 to the maximum, and then due to the fit between the sliding block 221 and the sliding rail 211, the sliding mounting plate 22 slides under the restriction between the sliding block 221 and the sliding rail 211, so that the two sliding mounting plates 22 and the positioning mounting plate 21 slide relative to each other, and the sliding directions of the two sliding mounting plates 22 remain opposite and close to each other, and the multiple positioning claws 23 are respectively close to the central position of the positioning mounting plate 21 to clamp the AGV frame together; then the separation mechanism 5 can be used to drive the auxiliary bracket 4 and the bottom end of the positioning bracket 2 to extend the distance to generate the installation spacing (installation spacing The auxiliary clamping arms 43 are arranged so that the parts can be clamped in the auxiliary clamping arms 43 at a height greater than the height of the parts that can be clamped in the auxiliary clamping arms 43, and in actual use, the installation spacing is related to the type of specific parts), and then by adjusting the positions of the two auxiliary clamping arms 42, at least two auxiliary clamping arms 43 corresponding to the two auxiliary clamping arms 42 can clamp the same part together, or only one auxiliary clamping jaw 43 can clamp a part, so that the positions of each part and the AGV frame can be fixed accordingly, so that the parts and the welding body (AGV frame) can be effectively positioned, and the positioning bracket 2 is driven by the lifting mechanism 3 to be raised and lowered under the support of the fixed bracket 1, and the positioning bracket 2 and the auxiliary bracket 4 are driven to rise synchronously, so that the AGV frame and each part clamped by the positioning bracket 2 and the auxiliary bracket 4 can be synchronously raised to the height required for welding (in actual use, it is related to the height that the welding robot or welding worker can actually adapt to welding), so that the parts and the welding body can be accurately positioned while facilitating the subsequent welding.

[0033] Example 2: Please refer to Figure 1-Figure 2 , Figure 5-Figure 6 , which is different from the above-mentioned embodiment, is that a sliding drive cylinder 24 is provided at the top of the positioning mounting plate 21, and the movable end of the sliding drive cylinder 24 is fixed to any one of the sliding mounting plates 22; a synchronous drive unit 25 is provided at the center of the top of the positioning mounting plate 21, and the synchronous drive unit 25 includes a central fixed rotating shaft 251 and a rotating connecting plate 252, and the center of the rotating connecting plate 252 is rotatably connected to the central fixed rotating shaft 251, and the two ends of the rotating connecting plate 252 are respectively rotatably connected with driving connecting rods 253, and the end of the driving connecting rod 253 away from the rotating connecting plate 252 is rotatably connected to the sliding mounting plate 22.

[0034] The extension and retraction of the movable end of the sliding drive cylinder 24 can drive the sliding mounting plate 22 fixedly connected to the movable end of the sliding drive cylinder 24 to move, and drive the driving connecting rod 253 on the same side to drive the sliding mounting plate 22 to rotate; the sliding mounting plate 22 can drive the driving connecting rod 253 on the other side to rotate, and drive the sliding mounting plate 22 on the other side to move in the opposite direction.

[0035] The positioning clamp 23 includes a clamp shaft 231, a clamp arm 232 and a limit rod 233; the clamp arm 232 includes two connecting arms 2321, which are vertically arranged between the two connecting arms 2321, and the ends of the two connecting arms 2321 away from the clamp shaft 231 are rotatably provided with clamping rollers 2322; the clamp arm 232 can rotate around the clamp shaft 231 under the restriction of the limit rod 233, and adapt to the shape of the AGV frame through the rotation of the clamp arm 232.

[0036] When in use, the sliding mounting plate 22 fixedly connected to the movable end of the sliding driving cylinder 24 can be driven to move by extending and retracting the movable end of the sliding driving cylinder 24, and the driving connecting rod 253 on the same side can be driven to drive the sliding mounting plate 22 to rotate; the sliding mounting plate 22 can drive the driving connecting rod 253 on the other side to rotate, and drive the sliding mounting plate 22 on the other side to move in the opposite direction, so as to drive the positioning claws 23 to approach the central position of the positioning mounting plate 21 respectively, and when each positioning claw 23 comes into contact with the AGV frame, the two connecting arms 2321 are vertically arranged, and the clamping rollers 2322 that are rotatably arranged at one end of the two connecting arms 2321 away from the claw shaft 231, the claw rotary arm 232 can It can rotate around the clamping claw shaft 231 under the restriction of the limit rod 233, and while adapting to the corners of the AGV frame, it can clamp the corners of the AGV frame together through the two connecting arms 2321, and stably fix the AGV frame at the bottom center of the positioning mounting plate 21. The clamping roller 2322 can be rotated and the material of the clamping roller 2322. The corner of the AGV frame can be converted into a soft connection (material) and a rotational connection to avoid damage to the AGV frame. The clamping claw arm 232 can rotate around the clamping claw shaft 231 under the restriction of the limit rod 233 to avoid unstable clamping caused by excessive deflection of the clamping claw arm 232, thereby ensuring the stability of clamping and positioning during the welding process.

[0037] Example 3: Please refer to Figure 1-Figure 2 , Figure 4The difference from the above embodiment is that the lifting mechanism 3 includes a lifting motor 31, a reduction box 32 and two output connecting rods 33. The two output connecting rods 33 are respectively fixed between the two output shafts on both sides of the reduction box 32. The lifting motor 31 can decelerate the rotation speed output by the lifting motor 31 and output the same speed rotation to the two output connecting rods 33 on both sides of the lifting motor 31.

[0038] A lifting drive mechanism 34 is provided at the end of the output connecting rod 33 away from the reduction box 32, and the lifting drive mechanism 34 includes a driving sprocket 341, a driving chain 342, a lifting connection block 343 and a driven sprocket 344; the driving chain 342 is respectively sleeved on the outside of the driving sprocket 341 and the driven sprocket 344, and the end of the output connecting rod 33 away from the reduction box 32 is fixedly transmitted to the corresponding driving sprocket 341, the lifting connection block 343 is fixed on the outside of the driving chain 342, and the two lifting connection blocks 343 are respectively fixed between the two sides of the positioning bracket 2.

[0039] The rotation output by the lifting motor 31 through the reduction gear box 32 can simultaneously drive the two driving sprockets 341 to rotate at the same speed, and drive the two driving chains 342 to rotate at the same linear speed. The lifting connecting block 343 can slide up and down with the driving chain 342 under the restriction of the limiting track 11, driving the positioning bracket 2 to rise and fall.

[0040] When in use, the lifting motor 31 rotates at the same speed through the output of the reduction box 32, and can simultaneously drive the two driving sprockets 341 to rotate at the same speed. Since the driving chain 342 is respectively sleeved on the outside of the driving sprocket 341 and the driven sprocket 344, the output connecting rod 33 is fixedly transmitted between the end away from the reduction box 32 and the corresponding driving sprocket 341, and the lifting connecting block 343 is fixed on the outside of the driving chain 342. The two lifting connecting blocks 343 are respectively fixed between the two sides of the positioning bracket 2, and drive the two driving chains 342 to rotate at the same linear speed. Rotation (in specific use, according to the rotation direction of the two output shafts on both sides of the reduction box 32, the two lifting connection blocks 343 are controlled to be fixed at the positions outside the two drive chains 342; when the rotation directions are the same, the two lifting connection blocks 343 are fixed on the same side of the outside of the two drive chains 342; when the rotation directions are opposite, the two lifting connection blocks 343 are fixed on both sides of the outside of the two drive chains 342), the lifting connection blocks 343 can slide up and down with the drive chain 342 under the restriction of the limiting track 11, and synchronously drive the positioning bracket 2 to rise and fall.

[0041] Example 4: Please refer to Figure 1-Figure 2 , Figure 7The difference from the above embodiment is that a plurality of auxiliary driving cylinders 411 are arranged inside the auxiliary frame 41, and the two ends of each auxiliary clamping arm 42 on the side away from the other auxiliary clamping arm 42 are respectively fixed to the movable ends of the auxiliary driving cylinder 411, and each auxiliary driving cylinder 411 is synchronously extended and retracted to drive the auxiliary clamping arm 42 to slide relatively in opposite directions inside the auxiliary frame 41; an auxiliary clamping groove 421 is provided at the bottom end of the auxiliary clamping arm 42, and the end of the auxiliary clamping claw 43 close to the auxiliary clamping arm 42 can be embedded in the auxiliary clamping groove 421, and the auxiliary clamping claw 43 can slide under the restriction of the auxiliary clamping groove 421.

[0042] The separation mechanism 5 includes a plurality of separation cylinders 51, a fixed end of each separation cylinder 51 is fixed to the positioning mounting plate 21, and a movable end of each separation cylinder 51 is fixed to the auxiliary frame 41; the projection area of ​​the auxiliary frame 41 is smaller than the projection area of ​​the positioning mounting plate 21, and the movable ends of each separation cylinder 51 can synchronously extend and retract to jointly drive the auxiliary bracket 4 and the bottom end of the positioning bracket 2 to adjust the distance.

[0043] Therefore, when in use, each auxiliary driving cylinder 411 can be synchronously extended and retracted to drive the auxiliary clamping arm 42 to slide relatively in opposite directions inside the auxiliary frame 41. Then, the auxiliary clamping claw 43 can be slid under the restriction of the auxiliary clamping groove 421 to adjust the position of the auxiliary clamping claw 43, and then the relative position of the parts that can be clamped by the auxiliary clamping claw 43 and the AGV frame can be arbitrarily adjusted, so that the parts and the welding body can be accurately positioned while facilitating the subsequent welding; then, when the parts are actually fixed, the fixed ends of each separation cylinder 51 are fixed to the positioning mounting plate 21, and the movable ends of each separation cylinder 51 are fixed to the auxiliary frame 41; the projection area of ​​the auxiliary frame 41 is smaller than the projection area of ​​the positioning mounting plate 21, and the synchronous extension and retraction of the movable ends of each separation cylinder 51 can jointly drive the spacing between the bottom ends of the auxiliary bracket 4 and the positioning bracket 2 to be adjusted, so as to facilitate the clamping of the parts.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning welding device for a heavy-load AGV platform, characterized in that: include: A fixed bracket, a positioning bracket is arranged on one side of the fixed bracket, a lifting mechanism is arranged inside the fixed bracket, and the lifting mechanism can drive the positioning bracket to rise and fall under the support of the fixed bracket; An auxiliary bracket is fixedly arranged directly below the positioning bracket through a separation mechanism, and the separation mechanism can drive the auxiliary bracket to generate an installation spacing between the bottom end of the positioning bracket; The positioning bracket comprises a positioning mounting plate and two sliding mounting plates, the two sliding mounting plates can slide relative to the positioning mounting plate, and the sliding directions of the two sliding mounting plates remain opposite; The bottom ends of the two sliding mounting plates are respectively provided with positioning claws, and the plurality of positioning claws can be respectively moved close to the central position of the positioning mounting plates to clamp the AGV frame together; The auxiliary bracket includes an auxiliary frame and two auxiliary clamping arms. The two auxiliary clamping arms can slide relative to each other in opposite directions inside the auxiliary frame. Auxiliary clamping claws are arranged at the bottom ends of the auxiliary clamping arms. The two auxiliary clamping claws corresponding to the two auxiliary clamping arms can clamp the parts together.

2. The positioning welding equipment for a heavy-load AGV platform according to claim 1 is characterized in that: A sliding track is arranged at the top end of the positioning mounting plate, and a sliding block is arranged at the bottom end of the sliding mounting plate. The sliding block fits with the sliding track, and the sliding mounting plate slides under the restriction between the sliding block and the sliding track.

3. The positioning welding equipment for a heavy-load AGV platform according to claim 2 is characterized in that: A sliding drive cylinder is provided at the top of the positioning mounting plate, and a movable end of the sliding drive cylinder is fixed to any one of the sliding mounting plates; A synchronous drive unit is arranged at the center of the top of the positioning mounting plate, and the synchronous drive unit includes a central fixed rotating shaft and a rotating connecting plate. The center of the rotating connecting plate is rotatably connected to the central fixed rotating shaft, and the two ends of the rotating connecting plate are respectively rotatably connected to driving connecting rods, and the end of the driving connecting rod away from the rotating connecting plate is rotatably connected to the sliding mounting plate.

4. The positioning welding equipment for a heavy-load AGV platform according to claim 3 is characterized in that: The movable end of the sliding drive cylinder is extended and retracted to drive the sliding mounting plate fixedly connected to the movable end of the sliding drive cylinder to move, and drives the driving connecting rod on the same side to drive the sliding mounting plate to rotate; The sliding mounting plate can drive the driving connecting rod on the other side to rotate, thereby driving the sliding mounting plate on the other side to move in the opposite direction.

5. The positioning welding equipment for a heavy-load AGV platform according to claim 1 is characterized in that: The positioning clamping jaw comprises a clamping jaw shaft, a clamping jaw swing arm and a limiting rod; The clamping claw rotary arm comprises two connecting arms, which are arranged vertically, and one end of the two connecting arms away from the clamping claw shaft is rotatably provided with a clamping roller; The clamping claw arm can rotate around the clamping claw axis under the restriction of the limiting rod, and the clamping claw arm can adapt to the shape of the AGV frame through the rotation of the clamping claw arm.

6. The positioning welding equipment for a heavy-load AGV platform according to claim 1 is characterized in that: The lifting mechanism includes a lifting motor, a reduction gear box and two output connecting rods. The two output connecting rods are respectively fixed between two output shafts on both sides of the reduction gear box. The lifting motor can reduce the speed output by the lifting motor and then output rotation with the same speed to the two output connecting rods on both sides of the lifting motor.

7. The positioning welding equipment for a heavy-load AGV platform according to claim 6 is characterized in that: The output connecting rod is provided with a lifting driving mechanism at one end away from the reduction box, and the lifting driving mechanism includes a driving sprocket, a driving chain, a lifting connection block and a driven sprocket; The drive chain is respectively sleeved on the outside of the drive sprocket and the driven sprocket, the output connecting rod is fixedly transmitted between the end away from the reduction box and the corresponding drive sprocket, the lifting connecting block is fixed on the outside of the drive chain, and the two lifting connecting blocks are respectively fixed between the two sides of the positioning bracket.

8. The positioning welding equipment for a heavy-load AGV platform according to claim 7 is characterized in that: The lifting motor can simultaneously drive the two driving sprockets to rotate at the same speed through the rotation output of the reduction box, and drive the two driving chains to rotate at the same linear speed. The lifting connecting block can slide up and down with the driving chain under the restriction of the limiting track, driving the positioning bracket to rise and fall.

9. The positioning welding equipment for a heavy-load AGV platform according to claim 1, characterized in that: A plurality of auxiliary driving cylinders are arranged inside the auxiliary frame, and the two ends of each auxiliary clamping arm on a side away from another auxiliary clamping arm are respectively fixed to the movable ends of the auxiliary driving cylinders, and each auxiliary driving cylinder is synchronously extended and retracted to drive the auxiliary clamping arms to slide relatively in opposite directions inside the auxiliary frame; An auxiliary clamping groove is formed at the bottom end of the auxiliary clamping arm, and one end of the auxiliary clamping claw close to the auxiliary clamping arm can be embedded in the auxiliary clamping groove, and the auxiliary clamping claw can slide under the restriction of the auxiliary clamping groove.

10. The positioning welding equipment for a heavy-load AGV platform according to claim 1, characterized in that: The separation mechanism includes a plurality of separation cylinders, wherein a fixed end of each separation cylinder is fixed to the positioning mounting plate, and a movable end of each separation cylinder is fixed to the auxiliary frame; The projection area of ​​the auxiliary frame is smaller than the projection area of ​​the positioning mounting plate, and the movable ends of the separation cylinders are synchronously extended and retracted to jointly drive the distance between the auxiliary bracket and the bottom end of the positioning bracket to be adjusted.

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