Rail steel plate detection welding tool for logistics cross belt

Abstract

The present application relates to the technical field of welding tooling, especially to a rail steel plate detection welding tooling for logistics cross belt, which comprises a fixed bearing box, a fixed-point pushing mechanism, a lifting supporting mechanism, a connecting plate loading mechanism, a clamping and pressing mechanism and a lifting bearing detection mechanism; the lifting bearing detection mechanism is arranged in the fixed bearing box and is used for detecting the deformation amount of the second web plate and the second flange plate in the rail body before and after welding and driving the rail body to rise to a preset position along the Z direction to pre-assemble with the connecting plate after bearing the second flange plate; the clamping and pressing mechanism is arranged on the fixed bearing box and multiple clamping and pressing mechanisms are arranged to independently clamp the first connecting side plate and the second connecting side plate in the connecting plate and press down the second flange plate in the rail body when it rises to the preset position. The present application integrates the functions of detection, pre-assembly and clamping, thereby improving the welding precision and production efficiency.

Description

Technical Field

[0001] This invention relates to the field of welding fixture technology, and in particular to a welding fixture for inspecting track steel plates in logistics cross-belts. Background Technology

[0002] Cross-belt sorting systems are key equipment in the field of logistics automation, and the welding quality of the track body and connecting plates directly affects the operational stability and service life of the equipment. The track body is composed of steel plate components such as the first web plate, second web plate, first flange plate, and second flange plate, while the connecting plates are used to connect the track body to the frame of the sorting system. In existing technologies, the welding of the track body and connecting plates is usually completed manually or semi-automatically, which has the following problems: First, it is difficult to detect the deformation of the track body before welding, and direct welding if the track body has large deformation will lead to insufficient assembly accuracy; second, existing welding fixtures require workers to place each component on the welding fixture for positioning, then manually assemble and tighten them before welding, resulting in low automation; third, there is a lack of effective means to detect the deformation before and after welding, making it impossible to quantitatively evaluate the welding quality. Summary of the Invention

[0003] The present invention aims to solve the above-mentioned defects and provide a welding fixture for inspecting rail steel plates in logistics cross-belts.

[0004] In order to overcome the defects in the background technology, the technical solution adopted by the present invention to solve its technical problem is: a welding fixture for detecting rail steel plates for logistics cross belts, including a fixed bearing box, a fixed-point pushing mechanism, a lifting support mechanism, a connecting plate loading mechanism, a clamping and pressing mechanism, and a lifting bearing detection mechanism.

[0005] The fixed-point pushing mechanism has two symmetrically arranged inside the fixed carrier box, which is used to push the track body to the preset position along the X direction;

[0006] The lifting load detection mechanism is set inside the fixed load box and is used to detect the deformation of the second web plate and the second flange plate in the track body before and after welding, and to drive the track body to rise along the Z direction to a preset position and pre-assemble with the connecting plate after bearing the second flange plate.

[0007] The connecting plate loading mechanism is arranged above the fixed bearing box and is used to move the stored connecting plate downward along Z and output it to a preset position for pre-assembly with the track body;

[0008] Multiple lifting support mechanisms are provided and all are installed on the fixed bearing box and connected to the connecting plate loading mechanism to realize the lifting and carrying of the connecting plate loading mechanism along the Z direction.

[0009] The clamping and pressing mechanism is mounted on the fixed bearing box, and there are multiple clamping and pressing mechanisms, which are used to independently clamp the first connecting side plate and the second connecting side plate in the connecting plate, and to press the second flange plate in the track body downward when it rises to the preset position.

[0010] In a further improvement, the connecting plate loading mechanism includes a bearing plate assembly unit, a material pushing drive assembly, a material pushing clamping plate, a gripping lifting plate assembly, and a lifting and lowering unit;

[0011] The bearing plate assembly unit is provided with three plate receiving cavities for accommodating connecting plates. The three plate receiving cavities are distributed sequentially along the Y direction, and each plate receiving cavity contains connecting plates placed side by side along the Y direction.

[0012] In each of the sheet material receiving cavities, a gripping lifting plate assembly that can move along the Z direction is slidably disposed on an inner side wall located in the Y direction, and the bearing plate group unit is provided with lifting and lowering units that drive the gripping lifting plate assembly to move along the Z direction respectively.

[0013] The inner wall of the sheet material receiving cavity is provided with a side rail and the bottom wall is provided with a lower rail; a pusher clamping plate is slidably provided on the side rail and the lower rail, so that the pusher clamping plate can move freely in the Y direction; the bearing plate assembly unit is provided with a pusher drive assembly for driving the pusher clamping plate to move.

[0014] The bottom wall of the sheet metal receiving cavity is provided with a lowering window.

[0015] In a further improvement, the gripping lifting plate assembly includes a lifting plate body, and an air passage is provided inside the lifting plate body; a gripping column, an elastic element, and a gripping pin distance sensor are provided inside the air passage.

[0016] The lifting plate body has a preset opening at the position corresponding to the mounting hole of the connecting plate, and the gripping column extends out of the preset opening; the elastic element is used to continuously push the gripping column out of the preset opening; the gripping pin distance sensor detects the displacement of the gripping column when it extends out of the preset opening and retracts.

[0017] The outlet of the air passage is connected to an external pneumatic control system via a pipeline.

[0018] In a further improvement, the lifting load detection mechanism includes two detection boxes and at least three telescopic columns;

[0019] Each telescopic column has a movable column connected to both ends along the axial direction, and the free ends of the movable columns are respectively connected to the corresponding detection boxes; each telescopic column is provided with a telescopic drive unit connected to the two detection boxes, which is used to drive the two detection boxes to move closer to each other or further away from each other; the bottom of each telescopic column is connected to the output end of a lifting assembly cylinder, and the lifting assembly cylinder is mounted on a fixed bearing box.

[0020] Each of the aforementioned testing boxes has three sets of horizontal testing units on its top corresponding to the connecting plate, and three sets of vertical load-bearing testing units on its sides corresponding to the horizontal testing units.

[0021] In a further improvement, the vertical load-bearing detection unit includes a flange plate detection seat, which contains two flange plate detection cavities and two flange plate ranging sensors for detecting the displacement of the flange plate detection top column.

[0022] Each of the flange plate detection cavities is provided with a flange plate detection top post and a flange plate detection reset spring; the flange plate detection reset spring pushes the flange plate detection top post to extend to the outside through a preset opening on the flange plate detection seat;

[0023] The flange detection seat has an internal flange air passage cavity that connects two flange detection cavities simultaneously; the outlet of the flange air passage cavity is connected to an external pneumatic control system through a pipeline.

[0024] In a further improvement, the lateral detection unit includes a web plate detection seat, which contains two web plate detection cavities and two web plate distance sensors for detecting the displacement of the web plate detection top column;

[0025] Each of the aforementioned web plate detection cavities is respectively provided with a web plate detection top post and a web plate detection reset spring; the web plate detection reset spring pushes the web plate detection top post to extend to the outside through a preset opening on the web plate detection seat;

[0026] The web plate detection seat has an internal cavity for connecting two web plate detection chambers. The outlet of the internal cavity for connecting the web plate air passage is connected to an external pneumatic control system through a pipeline.

[0027] In a further improvement, the clamping and pressing mechanism includes an avoidance cylinder, a lower bottom plate, and an upper top plate mounted on a fixed bearing box;

[0028] At least four connecting guide posts are provided between the lower bottom plate and the upper top plate, and the connecting guide posts also pass through the pressure-holding sliding plate; pneumatic clamping fingers are installed below the pressure-holding sliding plate for clamping the first connecting side plate and the second connecting side plate of the connecting plate.

[0029] Each connecting guide post is fitted with a welded clamping spring, which continuously pushes the pressure sliding plate downwards.

[0030] The lower base plate is slidably mounted on the fixed bearing box along the X direction, and the output end of the avoidance cylinder is connected to the lower base plate;

[0031] The upper top plate is equipped with a displacement cylinder for driving the pressure sliding plate to move along the Z direction.

[0032] The beneficial effects of this invention are: by setting up a lifting and bearing detection mechanism, this solution integrates the deformation detection function and the bearing positioning function into one, which can accurately detect the deformation of the second web plate and the second flange plate in the track body before and after welding, and can also carry the second flange plate to drive the track body to rise along the Z direction to a preset position for pre-assembly with the connecting plate, thereby reducing the process conversion time and improving the assembly efficiency.

[0033] This solution, by setting up multiple clamping and pressing mechanisms, achieves independent clamping of the first and second connecting side plates in the connecting plate, as well as downward pressing of the second flange plate that has risen to the preset position. This ensures the positioning accuracy of the connecting plate and the track body during pre-assembly and welding, effectively reduces welding thermal deformation, and improves welding quality.

[0034] This solution integrates the lifting and load-bearing detection mechanism with the clamping and pressing mechanism to achieve precise clamping during pre-assembly, forming an integrated process of detection, pre-assembly, and clamping, which significantly improves the automation level and production efficiency of welding tooling. Attached Figure Description

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0036] Figure 1 This is the front view of the existing track;

[0037] Figure 2 This is the main view (state) of the present invention. Figure 1 );

[0038] Figure 3 This is the main view (state) of the present invention. Figure 2 );

[0039] Figure 4 This is a top view (state) of the present invention. Figure 1 );

[0040] Figure 5 This is a top view (state) of the present invention. Figure 2 );

[0041] Figure 6 yes Figure 5 Enlarged view of A in the middle;

[0042] Figure 7 This is a front view of the gripping lifting plate assembly in this invention;

[0043] Figure 8 This is a rear view of the gripping lifting plate assembly in this invention;

[0044] Figure 9 yes Figure 7 Sectional view of EE;

[0045] Figure 10 This is a top view of the lifting load detection mechanism in this invention;

[0046] Figure 11 This is a side sectional view of the vertical load-bearing detection unit in this invention;

[0047] Figure 12 This is a side sectional view of the transverse detection unit in this invention;

[0048] Figure 13 This is a front view of the clamping and pressing mechanism in this invention;

[0049] In the figure, 001-first flange plate, 002-second flange plate, 003-second connecting side plate, 004-connecting bottom plate, 005-first connecting side plate, 006-second web plate, 007-first web plate;

[0050] 1-Point pushing mechanism, 2-Fixed bearing box, 3-Lifting support mechanism, 4-Connecting plate loading mechanism, 5-Clamping and pressing mechanism, 6-Lifting bearing detection mechanism, 7-Guide block;

[0051] 401-Lifting and lowering unit, 402-Bearing plate assembly unit, 403-Pushing drive assembly, 404-Lower track, 405-Pushing clamping plate, 406-Plate receiving cavity, 407-Side track, 408-Grabbing lifting plate assembly, 409-Lowering window;

[0052] 4011 - Drive motor; 4012 - Drive gear;

[0053] 4081-Grabbing column, 4082-Air passage, 4083-Lifting plate, 4084-Strip tooth, 4085-Grabbing pin distance sensor, 4086-Elastic element;

[0054] 501-Avoidance cylinder, 502-Lower base plate, 503-Connecting guide post, 504-Pressing sliding plate, 505-Welded clamping spring, 506-Shifting cylinder, 507-Upper top plate, 508-Pneumatic gripper finger;

[0055] 601-Detection box, 602-Moving column, 603-Telescopic column, 604-Horizontal detection unit, 605-Telescopic drive unit, 606-Vertical load detection unit, 607-Lifting assembly cylinder;

[0056] 6041-Branch plate detection cavity, 6042-Branch plate air passage cavity, 6043-Branch plate detection top column, 6044-Branch plate detection reset spring, 6045-Branch plate ranging sensor, 6046-Branch plate detection seat;

[0057] 6061 - Flange detection cavity, 6062 - Flange air passage cavity, 6063 - Flange detection seat, 6064 - Flange detection top post, 6065 - Flange detection reset spring, 6066 - Flange ranging sensor. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0059] See Figure 1 , Figure 2 , Figure 3 and Figure 4 This embodiment provides a welding fixture for inspecting rail steel plates used in logistics cross-belts. It is used to pre-assemble the rail body and connecting plate before welding, and to detect the deformation before and after welding. The fixture includes a fixed bearing box 2, a fixed-point pushing mechanism 1, a lifting support mechanism 3, a connecting plate loading mechanism 4, a clamping and pressing mechanism 5, and a lifting bearing detection mechanism 6.

[0060] Among them, the fixed bearing box 2 serves as the mounting base for all components. The fixed bearing box 2 has an open structure on both sides along the Y direction so that the main body of the track can enter the interior of the fixed bearing box 2 from the side.

[0061] The fixed-point pushing mechanism 1 has two symmetrically arranged inside the fixed carrier box 2, which are used to push the track body to the preset position along the X direction;

[0062] The lifting load detection mechanism 6 is set inside the fixed load box 2 and is used to detect the deformation of the second web plate 006 and the second flange plate 002 in the track body before and after welding, and to drive the track body to rise along the Z direction to a preset position after bearing the second flange plate 002 and pre-assemble it with the connecting plate, so that the welding robot can weld the connection between the two in the future.

[0063] The connecting plate loading mechanism 4 is arranged above the fixed bearing box 2 and is used to move the stored connecting plate downward along Z and output it to a preset position for pre-assembly with the track body;

[0064] Multiple lifting support mechanisms 3 are provided and all are installed on the fixed bearing box 2 and connected to the connecting plate loading mechanism 4, so as to realize the lifting and carrying of the connecting plate loading mechanism 4 along the Z direction.

[0065] The clamping and pressing mechanism 5 is disposed on the fixed bearing box 2, and there are multiple clamping and pressing mechanisms 5, which are used to independently clamp the first connecting side plate 005 and the second connecting side plate 003 in the connecting plate, and to press down the second flange plate 002 in the track body when it rises to the preset position.

[0066] See Figure 4 , Figure 5 and Figure 6 In a specific embodiment, the connecting plate loading mechanism 4 includes a bearing plate assembly unit 402, a pushing drive assembly 403, a pushing clamping plate 405, a gripping lifting plate assembly 408, and a lifting and lowering unit 401.

[0067] The bearing plate assembly unit 402 is provided with three plate receiving cavities 406 for accommodating connecting plates. The three plate receiving cavities 406 are distributed sequentially along the Y direction, and each plate receiving cavity 406 contains connecting plates placed side by side along the Y direction.

[0068] In each of the sheet material receiving cavities 406, a gripping lifting plate assembly 408 that can move along the Z direction is slidably disposed on an inner side wall located in the Y direction. The bearing plate group unit 402 is provided with lifting and lowering units 401 that drive the gripping lifting plate assembly 408 to move along the Z direction.

[0069] The inner sidewall of the sheet material receiving cavity 406 is provided with a side rail 407 and the bottom wall is provided with a lower rail 404; a pusher clamping plate 405 is slidably provided on the side rail 407 and the lower rail 404, so that the pusher clamping plate 405 can move freely in the Y direction; the bearing plate group unit 402 is provided with a pusher driving component 403 for driving the pusher clamping plate 405 to move.

[0070] The connecting plates that enter the sheet material receiving cavity 406 can be placed side by side. The pushing drive assembly 403 drives the pushing clamping plate 405 to move along the Y direction, thereby pushing the connecting plates closer to the position of the gripping lifting plate assembly 408. The gripping lifting plate assembly 408 cooperates to squeeze the connecting plates, thereby squeezing and flattening the connecting plates. The arrangement of the side rails 407 and the lower rails 404 reduces the contact area between the connecting plates and the inner wall of the sheet material receiving cavity 406, which facilitates the smooth pushing of the connecting plates.

[0071] The bottom wall of the sheet material receiving cavity 406 is provided with a lowering window 409, which is used for the connecting plate and the gripping lifting plate assembly 408 to pass through together. That is, the connecting plate is pushed to the gripping position close to the gripping lifting plate assembly 408. At this time, after the gripping lifting plate assembly 408 grips the connecting plate, it drives the connecting plate to be lowered downward along the Z direction through the lowering window 409 to pre-assemble with the track body and perform subsequent welding operations. After welding is completed and the material is unloaded, the pushing drive assembly 403 continues to push the subsequent connecting plate in the sheet material receiving cavity 406 to the gripping position of the gripping lifting plate assembly 408 again to prepare for the next pre-assembly.

[0072] See Figure 7 , Figure 8 , Figure 9 and Figure 6 In a specific embodiment, the gripping lifting plate assembly 408 includes a lifting plate body 4083, and an air passage 4082 is provided inside the lifting plate body 4083; a gripping column 4081, an elastic element 4086, and a gripping pin distance sensor 4085 are provided inside the air passage 4082.

[0073] The lifting plate 4083 has a preset opening at the position corresponding to the mounting hole of the connecting plate. The gripping column 4081 extends outward from the preset opening. The elastic element 4086 is used to continuously push the gripping column 4081 outward from the preset opening. The gripping pin distance sensor 4085 detects the displacement of the gripping column 4081 when it extends out and retracts from the preset opening, thereby determining whether the gripping column 4081 is inserted into the mounting hole of the connecting plate. By detecting the change in the displacement of the gripping column 4081, it can be determined whether the gripping lifting plate assembly 408 has gripped the connecting plate in place. At the same time, it can also determine whether there is an error in the position tolerance of the mounting hole of the connecting plate.

[0074] The outlet of the air passage 4082 is connected to an external pneumatic control system via a pipeline. The pneumatic control system controls the air pressure in the air passage 4082, thereby controlling the gripping column 4081 to extend from the preset opening or retract inward. When the gripping column 4081 extends, it inserts into the assembly hole of the connecting plate and grips the connecting plate. When the gripping column 4081 retracts, it releases the connecting plate. The gripping lifting plate assembly 408 rises or falls, which can drive the connecting plate to the pre-assembly position between the connecting plate and the track body.

[0075] See Figure 3 and Figure 8 In a specific embodiment, the lifting and lowering unit 401 includes a drive motor 4011, and the output end of the drive motor 4011 is axially connected to a drive gear 4012; the drive gear 4012 meshes with the strip teeth 4084 on the gripping lifting plate assembly 408, and drives the gripping lifting plate assembly 408 to move up and down in the Z direction through gear transmission.

[0076] See Figure 10 In a specific embodiment, the lifting load detection mechanism 6 includes two detection boxes 601 and at least three telescopic columns 603;

[0077] Each telescopic column 603 has a movable column 602 connected to both ends along the axial direction. The free ends of the movable columns 602 are respectively connected to the corresponding detection boxes 601. Each telescopic column 603 is provided with a telescopic drive unit 605 connected to the two detection boxes 601, which is used to drive the two detection boxes 601 to move closer or further apart. The bottom of each telescopic column 603 is connected to the output end of a lifting assembly cylinder 607, and the lifting assembly cylinder 607 is installed on the fixed bearing box 2, thereby driving the detection box 601 to move up and down along the Z direction through the lifting assembly cylinder 607.

[0078] Each of the aforementioned testing boxes 601 has three sets of horizontal testing units 604 corresponding to the connecting plate on its top and three sets of vertical load-bearing testing units 606 corresponding to the horizontal testing units 604 on its side.

[0079] The transverse detection unit 604 is used to detect the deformation of the second web plate 006 in the track body before and after welding; the vertical bearing detection unit 606 is used to support the second flange plate 002 in the track body and drive the track body to move upward along the Z direction for pre-assembly, and to detect the deformation of the second flange plate 002 before and after welding.

[0080] See Figure 11 In a further embodiment, the vertical load-bearing detection unit 606 includes a flange plate detection seat 6063, which has two flange plate detection cavities 6061 and two flange plate ranging sensors 6066 for detecting the displacement of the flange plate detection top column 6064.

[0081] Each of the flange plate detection cavities 6061 is provided with a flange plate detection top post 6064 and a flange plate detection reset spring 6065; the flange plate detection reset spring 6065 pushes the flange plate detection top post 6064 to extend to the outside through a preset opening on the flange plate detection seat 6063, so that it remains in the extended state.

[0082] The flange detection seat 6063 has an internal flange air passage cavity 6062 that connects two flange detection cavities 6061 simultaneously; the outlet of the flange air passage cavity 6062 is connected to an external pneumatic control system through a pipeline.

[0083] The flange plate detection top post 6064 is kept in an extended state under the action of the flange plate detection reset spring 6065 and is in contact with the second flange plate 002. The displacement of the flange plate detection top post 6064 is detected by the flange plate distance sensor 6066, thereby detecting the deformation of the second flange plate 002 under normal placement and before and after welding.

[0084] See Figure 12 In a further embodiment, the transverse detection unit 604 includes a web plate detection seat 6046, which has two web plate detection cavities 6041 and two web plate distance sensors 6045 for detecting the displacement of the web plate detection top column 6043.

[0085] Each of the web plate detection cavities 6041 is provided with a web plate detection top post 6043 and a web plate detection reset spring 6044; the web plate detection reset spring 6044 pushes the web plate detection top post 6043 to extend to the outside through a preset opening on the web plate detection seat 6046, so that it remains in the extended state.

[0086] The web plate detection seat 6046 has a web plate air passage cavity 6042 that connects two web plate detection cavities 6041 simultaneously. The outlet of the web plate air passage cavity 6042 is connected to an external pneumatic control system through a pipeline.

[0087] During normal testing, the web plate detection top post 6043 remains extended under the action of the web plate detection reset spring 6044, contacting the second web plate 006. The displacement of the web plate detection top post 6043 is detected by the web plate distance sensor 6045, thereby detecting the deformation of the second web plate 006 under normal placement and before and after welding. During the pre-assembly of the connecting plate and the track body, air is supplied to the inner cavity 6042 of the web plate air passage to further extend the web plate detection top post 6043, thereby pressing the second web plate 006 to ensure that there is no large gap between the second web plate 006 and the connecting plate during welding. After welding, the web plate detection top post 6043 extends and contacts the second web plate 006 through the web plate detection reset spring 6044, thereby detecting the deformation after welding.

[0088] See Figure 13 In a specific embodiment, the clamping and pressing mechanism 5 includes an avoidance cylinder 501, a lower bottom plate 502, and an upper top plate 507 disposed on the fixed bearing box 2;

[0089] At least four connecting guide posts 503 are provided between the lower base plate 502 and the upper top plate 507, and the connecting guide posts 503 simultaneously penetrate the pressing and sliding plate 504, so that the pressing and sliding plate 504 can slide up and down along the Z-axis along the connecting guide posts 503; pneumatic clamping fingers 508 are installed below the pressing and sliding plate 504 to clamp the first connecting side plate 005 and the second connecting side plate 003 of the connecting plate, thereby reducing thermal deformation after welding;

[0090] Each connecting guide post 503 is fitted with a welding clamping spring 505, which continuously pushes the pressing sliding plate 504 downward through the welding clamping spring 505, and applies a downward clamping force along the Z direction to the connecting plate through the pneumatic clamping finger 508.

[0091] The lower base plate 502 is slidably mounted on the fixed bearing box 2 along the X direction. The output end of the avoidance cylinder 501 is connected to the lower base plate 502. By driving the avoidance cylinder 501, the pneumatic clamping finger 508 moves along the X direction to avoid interference, so as to facilitate the unloading of the welded finished product and avoid interference. It is also used to press the connecting plate and the track body in the X direction during pre-assembly.

[0092] The upper top plate 507 is provided with a displacement cylinder 506 for driving the pressing and sliding plate 504 to move along the Z direction.

[0093] In a specific embodiment, a guide block 7 is provided on the inner bottom surface of the fixed bearing box 2. When the fixed-point pushing mechanism 1 pushes the track body to the preset position along the X direction, the guide block 7 plays a guiding and limiting role for the track body in the Y direction, ensuring that the track body will not shift axially during the movement, thereby ensuring the dimensional accuracy after welding.

[0094] In a specific embodiment, the lifting support mechanism includes a lifting hydraulic cylinder and a cylinder. When bearing load, the cylinder supports the connecting plate loading mechanism, and when lifting, the lifting hydraulic cylinder drives the connecting plate loading mechanism to move up and down.

[0095] Working principle:

[0096] Track body feeding and positioning

[0097] First, the two track bodies are symmetrically input from the Y-direction open port of the fixed bearing box 2 to the preset position inside the fixed bearing box 2; the fixed point pushing mechanism 1 pushes the first web plate 007 of the track body, so that the track body moves along the X direction to the preset position; during the movement, the guide block 7 guides and limits the track body in the Y direction to prevent its axial deviation during movement.

[0098] Track body deformation detection

[0099] After the track body is in place, the telescopic drive unit 605 drives the two detection boxes 601 to move away from each other along the X direction, so that the transverse detection unit 604 approaches the two track bodies respectively; the web plate detection top column 6043 is kept in an extended state under the action of the web plate detection reset spring 6044, and first contacts the surface of the second web plate 006 in the track body. After being subjected to force, the web plate detection top column 6043 retracts into the web plate detection cavity 6041. The web plate distance sensor 6045 detects the displacement change of the web plate detection top column 6043, and then determines whether the second web plate 006 is in a vertical state and detects its deformation.

[0100] After the lateral inspection is completed, the lifting assembly cylinder 607 drives the telescopic column 603 and the inspection box 601 to rise together along the Z direction; the flange plate inspection top column 6064 in the vertical bearing inspection unit 606 contacts the second flange plate 002. After being subjected to force, the flange plate inspection top column 6064 retracts into the flange plate inspection cavity 6061. The flange plate distance sensor 6066 detects the displacement change of the flange plate inspection top column 6064 to determine whether the second flange plate 002 is in a horizontal state and detects its deformation. The deformation of the track body under normal placement is detected in this way.

[0101] The main track rises to the assembly position

[0102] The drive detection box 601 continues to rise along the Z direction, the flange plate detection top column 6064 is completely retracted into the flange plate detection cavity 6061, the upper end face of the flange plate detection seat 6063 contacts the second flange plate 002, forming a load-bearing support for the second flange plate 002, thereby driving the entire track body to move upward along the Z direction.

[0103] As the second flange plate 002 in the track body moves upward through the preset window on the fixed bearing box 2 to the pre-assembly station with the connecting plate, the pneumatic clamping finger 508 continuously presses the second flange plate 002 downward under the action of the welding clamping spring 505 to prevent the track body from moving abnormally during this process.

[0104] Connecting plate placement and pre-assembly

[0105] At the same time, the pusher drive assembly 403 is activated, driving the pusher clamping plate 405 to push the connecting plate along the Y direction. The connecting plate moves to the lowering window 409 position. Meanwhile, the gripping column 4081 is kept extended under the action of the elastic element 4086 and then inserted into the assembly hole of the corresponding connecting plate. The drive motor 4011 drives the gripping lifting plate assembly 408 to move downward along the Z direction through the meshing transmission of the drive gear 4012 and the strip gear 4084, so that the connecting plate is lowered through the lowering window 409 to the position where it is pre-assembled with the two track bodies.

[0106] During the docking process between the connecting plate and the main track body, the pneumatic control system inflates the inner cavity 6042 of the web plate air passage, creating positive pressure inside. This pressure pushes the web plate detection top column 6043 to press against the second web plate 006, ensuring that the second web plate 006 fits tightly against the first connecting side plate 005 and the second connecting side plate 003, thus reducing the gaps that exist during pre-assembly.

[0107] Clamping, positioning and pressing

[0108] After pre-assembly, the pneumatic gripper 508 clamps the first connecting side plate 005 and the second connecting side plate 003 respectively to position the connecting plate; then, the gripping column 4081 retracts into the air passage 4082 under the action of the pneumatic control system, releasing the grip on the connecting plate; the gripping lifting plate assembly 408 rises along the Z direction to the preset position, and controls the gripping column 4081 to extend again; the gripping lifting plate assembly 408 moves down again, and the gripping column 4081 applies downward pressure to the connecting plate, so that the connecting plate is in close contact with the track body.

[0109] Since the clamping position of the pneumatic gripper 508 is located at the welding point of the first connecting side plate 005, the second connecting side plate 003 and the second flange plate 002, after the gripping lifting plate assembly 408 completes the downward pressing, the shifting cylinder 506 is activated to indirectly drive the pneumatic gripper 508 to move upward along the Z direction to the preset position. The pneumatic gripper 508 clamps the connecting side plate again to complete the pre-tightening. At this time, the welding clamping spring 505 applies a continuous downward force to the connecting plate to further ensure that the connecting plate and the track body are tightly fitted.

[0110] See Figure 3 When the connecting plate is pre-assembled with the track body, the connecting base plate 004 in the connecting plate is still in the plate receiving cavity 406. Therefore, the other connecting plates can be pushed by the pushing drive assembly 403 to drive the pushing clamping plate 405. The gripping lifting plate assembly 408 will clamp the connecting base plate 004 in the lowered connecting plate to facilitate subsequent welding.

[0111] Welding and Cooling

[0112] The welding robot welds the connection between the connecting plate and the main body of the track; after welding, it maintains the current state and cools for a certain period of time to allow the welded part to fully set.

[0113] Deformation detection after welding

[0114] After cooling, the web plate detection top post 6043 extends naturally under the action of the web plate detection reset spring 6044 and contacts the surface of the second web plate 006; the pneumatic control system stops supplying air to the inner cavity 6042 of the web plate air passage, the web plate detection top post 6043 releases pressure on the second web plate 006, and the flange plate detection top post 6064 extends naturally under the action of the flange plate detection reset spring 6065 and contacts the surface of the second flange plate 002; the deformation of the track body after welding is detected by the web plate distance sensor 6045 and the flange plate distance sensor 6066 respectively to ensure that the welding deformation is within the allowable range.

[0115] unloading

[0116] After passing the inspection, the pneumatic clamping finger 508 in the clamping and pressing mechanism 5 releases its clamping of the first connecting side plate 005 and the second connecting side plate 003; the avoidance cylinder 501 drives the lower base plate 502 to move along the X direction, so that the pneumatic clamping finger 508 moves away from the welded finished product.

[0117] Next, the grabbing lifting plate assembly 408 moves down and grabs the connecting plate again; the telescopic drive unit 605 drives the two detection boxes 601 to move closer to each other along the X direction, making way for the finished product to rise; the lifting support mechanism 3 drives the connecting plate loading mechanism 4 to move upward along the Z direction, so that the welded finished product moves upward together to the preset position for easy unloading.

[0118] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A welding fixture for inspecting rail steel plates in a logistics cross-belt, characterized in that, It includes a fixed load-bearing box (2), a fixed-point pushing mechanism (1), a lifting support mechanism (3), a connecting plate loading mechanism (4), a clamping and pressing mechanism (5), and a lifting load detection mechanism (6); The fixed-point pushing mechanism (1) has two parts and is symmetrically arranged in the fixed carrier box (2) for pushing the track body to the preset position along the X direction; The lifting load testing mechanism (6) is set inside the fixed load box (2) and is used to test the deformation of the second web plate (006) and the second flange plate (002) in the track body before and after welding, and to drive the track body to rise along the Z direction to the preset position and pre-assemble with the connecting plate after bearing the second flange plate (002). The connecting plate loading mechanism (4) is arranged above the fixed bearing box (2) and is used to move the stored connecting plate downward along Z to the preset position for pre-assembly with the track body; The lifting support mechanism (3) is provided in multiple ways and is installed on the fixed bearing box (2), and is connected to the connecting plate loading mechanism (4) to realize the lifting and bearing of the connecting plate loading mechanism (4) along the Z direction; The clamping and pressing mechanism (5) is set on the fixed bearing box (2), and there are multiple clamping and pressing mechanisms (5) for independently clamping the first connecting side plate (005) and the second connecting side plate (003) in the connecting plate, and for pressing the second flange plate (002) in the track body downward when it rises to the preset position.

2. The welding fixture for inspecting rail steel plates in a logistics cross-belt as described in claim 1, characterized in that: The connecting plate loading mechanism (4) includes a bearing plate assembly unit (402), a pushing drive assembly (403), a pushing clamping plate (405), a gripping lifting plate assembly (408), and a lifting and lowering unit (401). The bearing plate assembly unit (402) is provided with three plate receiving cavities (406) for accommodating connecting plates. The three plate receiving cavities (406) are distributed sequentially along the Y direction. Each plate receiving cavity (406) contains connecting plates placed side by side along the Y direction. In each of the sheet material receiving cavities (406), a gripping lifting plate assembly (408) that can move along the Z direction is slidably disposed on an inner side wall located in the Y direction, and a lifting and lowering unit (401) that drives the gripping lifting plate assembly (408) to move along the Z direction is disposed on the bearing plate group unit (402). The inner wall of the sheet material receiving cavity (406) is provided with a side rail (407), and the bottom wall is provided with a lower rail (404); a pusher clamping plate (405) is slidably provided on the side rail (407) and the lower rail (404) at the same time, so that the pusher clamping plate (405) can move freely in the Y direction; the bearing plate assembly unit (402) is provided with a pusher driving assembly (403) for driving the pusher clamping plate (405) to move. The bottom wall of the sheet material receiving cavity (406) is provided with a lowering window (409).

3. The welding fixture for inspecting track steel plates in a logistics cross-belt as described in claim 2, characterized in that: The gripping lifting plate assembly (408) includes a lifting plate body (4083), and an air passage (4082) is provided inside the lifting plate body (4083); a gripping column (4081), an elastic element (4086), and a gripping pin distance sensor (4085) are provided inside the air passage (4082). The lifting plate (4083) has a preset opening at the position corresponding to the mounting hole of the connecting plate, and the gripping column (4081) extends outward from the preset opening; the elastic element (4086) is used to continuously push the gripping column (4081) outward from the preset opening; the gripping pin distance sensor (4085) detects the displacement of the gripping column (4081) when it extends outward and retracts from the preset opening; The outlet of the air passage (4082) is connected to an external pneumatic control system via a pipeline.

4. The welding fixture for inspecting rail steel plates in a logistics cross-belt as described in claim 1, characterized in that: The lifting load testing mechanism (6) includes two testing boxes (601) and at least three telescopic columns (603). Each telescopic column (603) has a movable column (602) connected to both ends along the axial direction. The free ends of the movable columns (602) are respectively connected to the corresponding detection boxes (601). Each telescopic column (603) is provided with a telescopic drive unit (605) connected to the two detection boxes (601) to drive the two detection boxes (601) to move closer or further away from each other. The bottom of each telescopic column (603) is connected to the output end of a lifting assembly cylinder (607), and the lifting assembly cylinder (607) is installed on a fixed bearing box (2). Each of the aforementioned testing boxes (601) is provided with three sets of horizontal testing units (604) corresponding to the connecting plate on the top and three sets of vertical load testing units (606) corresponding to the horizontal testing units (604) on the side.

5. The welding fixture for inspecting rail steel plates in a logistics cross-belt as described in claim 4, characterized in that: The vertical load-bearing detection unit (606) includes a flange plate detection seat (6063), which has two flange plate detection cavities (6061) and two flange plate ranging sensors (6066) for detecting the displacement of the flange plate detection top column (6064). Each of the flange plate detection cavities (6061) is provided with a flange plate detection top post (6064) and a flange plate detection reset spring (6065); the flange plate detection reset spring (6065) pushes the flange plate detection top post (6064) to extend to the outside through a preset opening on the flange plate detection seat (6063); The flange detection seat (6063) has an internal flange air passage cavity (6062) that connects two flange detection cavities (6061) simultaneously; the outlet of the flange air passage cavity (6062) is connected to an external pneumatic control system through a pipeline.

6. The welding fixture for inspecting rail steel plates in a logistics cross-belt as described in claim 4, characterized in that: The transverse detection unit (604) includes a web plate detection seat (6046), which has two web plate detection cavities (6041) and two web plate distance sensors (6045) for detecting the displacement of the web plate detection top column (6043). Each of the aforementioned web plate detection cavities (6041) is respectively provided with a web plate detection top post (6043) and a web plate detection reset spring (6044); the web plate detection reset spring (6044) pushes the web plate detection top post (6043) to extend to the outside through a preset opening on the web plate detection seat (6046); The abdominal plate detection seat (6046) has an internal abdominal plate air passage cavity (6042) that connects two abdominal plate detection cavities (6041) simultaneously. The outlet of the abdominal plate air passage cavity (6042) is connected to an external pneumatic control system through a pipeline.

7. The welding fixture for inspecting track steel plates in a logistics cross-belt as described in claim 1, characterized in that: The clamping and pressing mechanism (5) includes a clearance cylinder (501), a lower bottom plate (502), and an upper top plate (507) disposed on the fixed bearing box (2); At least four connecting guide posts (503) are provided between the lower base plate (502) and the upper top plate (507), and the connecting guide posts (503) simultaneously penetrate the pressing sliding plate (504); pneumatic clamping fingers (508) are installed below the pressing sliding plate (504) for clamping the first connecting side plate (005) and the second connecting side plate (003) of the connecting plate. Each connecting guide post (503) is fitted with a welding clamping spring (505), thereby continuously pushing the pressure sliding plate (504) downward through the welding clamping spring (505); The lower base plate (502) is slidably mounted on the fixed bearing box (2) along the X direction, and the output end of the avoidance cylinder (501) is connected to the lower base plate (502); The upper top plate (507) is provided with a displacement cylinder (506) for driving the pressing sliding plate (504) to move along the Z direction.

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