An automatic material discharge device for stretching inner and outer steel plates of a fuel tank

Abstract

The present invention relates to an automatic material discharge device for stretching inner and outer steel plates of an oil tank, comprising a material distribution assembly, a material grabbing assembly and an inner and outer steel plate automatic positioning and oiling assembly arranged separately on a bottom plate, the inner and outer steel plate automatic positioning and oiling assembly comprising a frame, and an outer steel plate automatic positioning mechanism, an inner steel plate automatic positioning mechanism and an inner steel plate automatic oiling mechanism arranged on the frame, the inner steel plate automatic positioning mechanism comprising a positioning substrate, a reference positioning unit and a positioning adjustable unit, the reference positioning unit and the positioning adjustable unit are both arranged on the positioning substrate, the reference positioning unit comprises an inner steel plate X-direction reference positioning component and an inner steel plate Y-direction reference positioning component, the inner steel plate X-direction reference positioning component and the inner steel plate Y-direction reference positioning component are arranged on two sides of the positioning substrate adjacent to and perpendicular to each other. The present invention can automatically distribute, grab and automatically position and oil the inner and outer steel plates of the oil tank, and has high production efficiency.

Description

Technical Field

[0001] The invention relates to a material discharging device, in particular to an automatic material discharging device for stretching inner and outer steel plates of a motorcycle oil tank. Background Art

[0002] The existing motorcycle fuel tank is made of two symmetrical outer bodies welded in the middle and then roll-welded with the inner body. The existing inner and outer bodies are formed by stretching the mold of the hydraulic press and then trimming and punching in the subsequent process. The inner and outer body steel plates are manually taken from the material pile by the operator and placed on the workbench, and then lubricating oil is pre-applied on the corresponding positions of the steel plates with a brush, and finally manually sent into the mold of the hydraulic press for molding. This manual material discharge mode has the following disadvantages: First, since multiple steel plates will fit together after being stacked, it is not easy to remove the material; second, since the two outer plates weigh 9kg and the inner body is about 5kg, the daily production is calculated based on 850 sets. An operator needs to carry up to 7.65T of outer bodies a day, and an operator carries 4.25T of inner bodies, which makes the labor intensity of the human body extremely high. Third, if the operator is not focused, the two steel plates will be placed in the mold, which will cause the mold to get stuck and cannot be opened, seriously affecting the production efficiency. Fourth, since the gap between the convex and concave molds of the hydraulic press mold only allows the thickness of a single piece of material to be placed, forced stretching after placing double materials may even cause the coating on the mold surface to be destroyed, and may also cause the mold to be damaged. Therefore, the pure manual operation mode is not only time-consuming and labor-intensive, but also has low production efficiency. It is urgent to design a device that can automatically divide, grasp and position the materials and apply oil. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic material discharge device for stretching inner and outer steel plates of an oil tank, which can automatically separate, grasp, position and oil the inner and outer steel plates of the oil tank, which not only saves time and labor, but also has high production efficiency.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the present invention is: an automatic material discharging device for stretching inner and outer steel plates of a fuel tank, the innovation of which is that it comprises a material dividing assembly, a material grabbing assembly and an automatic positioning and oiling assembly for inner and outer steel plates which are arranged separately on a bottom plate,

[0005] The inner and outer steel plate automatic positioning and oiling assembly comprises a frame, and an outer steel plate automatic positioning mechanism, an inner steel plate automatic positioning mechanism and an inner steel plate automatic oiling mechanism arranged on the frame.

[0006] The inner body steel plate automatic positioning mechanism comprises a positioning substrate, a reference positioning unit and a positioning adjustable unit, wherein the reference positioning unit and the positioning adjustable unit are both arranged on the positioning substrate.

[0007] The reference positioning unit comprises an inner body steel plate X-direction reference positioning component and an inner body steel plate Y-direction reference positioning component, wherein the inner body steel plate X-direction reference positioning component and the inner body steel plate Y-direction reference positioning component are arranged on two sides of the positioning substrate that are adjacent and perpendicular to each other.

[0008] The positioning adjustable unit comprises an inner body steel plate X-direction positioning adjustable component and an inner body steel plate Y-direction positioning adjustable component arranged on the remaining two sides of the positioning base plate, the inner body steel plate X-direction reference positioning component is arranged relative to the inner body steel plate X-direction positioning adjustable component, and the inner body steel plate Y-direction reference positioning component is arranged relative to the inner body steel plate Y-direction positioning adjustable component.

[0009] The automatic oiling mechanism for the inner steel plate includes an oil box, a brush X-direction drive assembly and a brush Y-direction drive assembly, the brush Y-direction drive assembly includes a first motor and a Y-direction linear guide, the Y-direction linear guide is arranged on a frame and is located on the outside of a positioning base plate, the motor shaft of the first motor is transmission-connected to the Y-direction linear guide, the brush X-direction drive assembly includes a second motor, an X-direction linear guide, a support plate, a fourth cylinder and a brush holder, the motor shaft of the second motor is transmission-connected to the X-direction linear guide, the X-direction linear guide is arranged on the support plate, and the support plate is transmission-connected to a slider of the Y-direction linear guide, the fourth cylinder is arranged on the slider of the X-direction linear guide, and a brush holder is arranged on the top rod of the fourth cylinder.

[0010] In the above technical solution, the inner body steel plate X-axis reference positioning assembly includes a first support block and a first positioning block, the first support block is arranged on the positioning substrate, and the first positioning block is arranged on the first support block;

[0011] The inner body steel plate Y-axis reference positioning assembly comprises a second support block and a second positioning block, the second support block is arranged on the positioning base plate and is arranged perpendicular to the first support block, and the second positioning block is arranged on the second support block;

[0012] The inner body steel plate X-axis positioning adjustable assembly comprises a first cylinder, a first stopper, a first slider, a first guide rail and a third support block. Two third support blocks arranged side by side are provided on the positioning base plate, and each third support block is provided with a first guide rail. The first cylinder is installed at the bottom of the first slider, and the two ends of the first slider are respectively slidably matched with the corresponding first guide rails. The first stopper is fixedly connected to the top rod of the first cylinder.

[0013] The Y-axis positioning adjustable component of the inner steel plate includes a second cylinder, a second stopper, a second slider, a second guide rail and a fourth support block. Two fourth support blocks arranged side by side are provided on the positioning base plate, and each fourth support block is provided with a second guide rail. The second cylinder is installed at the bottom of the second slider, and the two ends of the second slider are respectively slidably matched with the corresponding second guide rails. The second stopper is fixedly connected to the top rod of the second cylinder.

[0014] In the above technical solution, the inner body steel plate automatic positioning mechanism also includes an inner body steel plate material detection unit, and the inner body steel plate material detection unit includes a third cylinder, a first U-shaped block, a first detection block, a first pressure block and a first optical fiber sensor. The third cylinder is arranged on the frame and is located on the outside of the inner body steel plate X-axis reference positioning assembly. The push rod of the third cylinder is fixedly connected to the first U-shaped block, and the first U-shaped block is hingedly connected to the first detection block. The first pressure block is installed on the first detection block, and the first optical fiber sensor is arranged on one side of the first detection block.

[0015] In the above technical solution, the outer body steel plate automatic positioning mechanism includes a positioning base frame and an outer body steel plate material detection unit, and an outer body steel plate X-direction reference positioning component, an outer body steel plate Y-direction reference positioning component, an outer body steel plate X-direction positioning adjustable component and an outer body steel plate Y-direction positioning adjustable component arranged around the positioning base frame, the positioning base frame is arranged on the other side of the frame, the outer body steel plate X-direction reference positioning component is arranged relative to the outer body steel plate X-direction positioning adjustable component, and the outer body steel plate Y-direction reference positioning component is arranged relative to the outer body steel plate Y-direction positioning adjustable component;

[0016] The outer body steel plate material detection unit includes a seventh cylinder, a second U-shaped block, a second detection block, a second pressure block and a second optical fiber sensor. The seventh cylinder is arranged on a positioning base and is located on the outside of the X-axis reference positioning assembly of the outer body steel plate. The push rod of the seventh cylinder is fixedly connected to the second U-shaped block, and the second U-shaped block is hingedly connected to the second detection block. The second pressure block is installed on the second detection block, and the second optical fiber sensor is arranged on one side of the second detection block.

[0017] In the above technical solution, the outer body steel plate X-axis reference positioning assembly includes a fifth support block and a third positioning block, the fifth support block is arranged on the positioning base frame, and the third positioning block is arranged on the fifth support block;

[0018] The outer body steel plate Y-axis reference positioning assembly includes a sixth support block and a fourth positioning block, wherein the sixth support block is arranged on the positioning base frame and is arranged perpendicular to the fifth support block, and the fourth positioning block is arranged on the sixth support block;

[0019] The outer body steel plate X-axis positioning adjustable assembly includes a fifth cylinder, a third stopper, a third slider, a third guide rail and a seventh support block. The positioning base frame is provided with two seventh support blocks arranged side by side, and each seventh support block is provided with a third guide rail. The fifth cylinder is installed at the bottom of the third slider, and the two ends of the third slider are respectively slidably matched with the corresponding third guide rails. The third stopper is fixedly connected to the top rod of the fifth cylinder;

[0020] The outer body steel plate Y-axis positioning adjustable component includes a sixth cylinder, a fourth stopper, a fourth slider, a fourth guide rail and an eighth support block. Two eighth support blocks arranged side by side are provided on the positioning base frame, and each eighth support block is provided with a fourth guide rail. The sixth cylinder is installed at the bottom of the fourth slider, and the two ends of the fourth slider are respectively slidably matched with the corresponding fourth guide rails. The fourth stopper is fixedly connected to the top rod of the sixth cylinder.

[0021] In the above technical solution, the material dividing assembly includes a material seat, a first reference positioning frame, a second reference positioning frame, a first magnetic spreader, a second magnetic spreader and an adjustable bracket. The first reference positioning frame, the second reference positioning frame and the two ends of the adjustable bracket are respectively arranged around the material seat. The first magnetic spreader and the second magnetic spreader are arranged at the two ends of the adjustable bracket. The first reference positioning frame is arranged opposite to the first magnetic spreader, and the second reference positioning frame is arranged opposite to the second magnetic spreader. A material detection mechanism is provided on one side of the first reference positioning frame. The material detection mechanism includes a detection column and an optical fiber sensor. The optical fiber sensor is installed on the detection column.

[0022] The adjustable bracket includes a fixed bracket seat, a primary adjustment plate, a secondary adjustment plate and a magnetic separator mounting plate. The fixed bracket seat is provided with two primary adjustment plates arranged up and down, and the primary adjustment plate is rotatably matched with the fixed bracket seat. Each primary adjustment plate is rotatably connected to the corresponding secondary adjustment plate through a pin shaft, and the first magnetic separator and the second magnetic separator are fixedly connected to the corresponding secondary adjustment plate through the magnetic separator mounting plate.

[0023] In the above technical solution, both ends of the primary adjustment plate are provided with primary sleeves, and both ends of the secondary adjustment plate are provided with secondary sleeves. The primary sleeve at one end of the primary adjustment plate is sleeved on the fixed bracket seat and rotatably connected thereto, and the other end is rotatably connected to a secondary sleeve of the secondary adjustment plate through a pin shaft. The other secondary sleeve of the secondary adjustment plate and the magnetic spreader mounting plate are both sleeved on a pin shaft.

[0024] The magnetic spreader mounting plate comprises a connecting plate and a sleeve, the connecting plate is fixedly connected to the sleeve, and another secondary sleeve of the secondary adjustment plate and the sleeve are sleeved on a pin shaft.

[0025] In the above technical solution, the material grabbing assembly includes a lever arm, a grabbing support connecting rod, a grabbing unit, a gripper mechanism and a six-axis robot.

[0026] The lever arm and the grabbing support connecting rod are arranged perpendicular to each other, and one end of the lever arm is fixedly connected to the grabbing support connecting rod through a connecting block, and the other end is transmission-connected to the transmission arm of the six-axis robot through a transmission arm connecting seat. The grabbing support connecting rod is provided with a plurality of grabbing units.

[0027] Each grabbing unit is composed of two groups of grabbing mechanisms arranged in opposite directions. Each group of grabbing mechanisms includes a grabbing support, a suction cup fixing frame and a suction cup. One end of the grabbing support is sleeved on the grabbing support connecting rod, and the other end is provided with a suction cup fixing frame. The suction cup is installed on the suction cup fixing frame.

[0028] In the above technical solution, the grabbing brace includes a connecting sleeve, a clamp and a connecting rod, one end of the connecting sleeve is hingedly connected to the clamp, one end of the connecting rod is inserted into the port at the other end of the connecting sleeve and fixed as a whole by a fastener, the suction cup is fixedly mounted on the other end of the connecting rod, and the clamp is clamped on the grabbing brace connecting rod and connected as a whole by a fastener.

[0029] In the above technical solution, the gripping mechanism also includes a suction cup adjustment seat, which is rotatably supported at the other end of the connecting rod and fastened together by a fastener. The suction cup fixing frame has a connecting shaft, and the connecting shaft of the suction cup fixing frame is rotatably connected to the suction cup adjustment seat.

[0030] The positive effect of the present invention is that after adopting the oil tank inner and outer body steel plate stretching automatic unloading device of the present invention, the present invention comprises a material dividing assembly, a material grabbing assembly and an inner and outer body steel plate automatic positioning and oiling assembly which are arranged separately on the bottom plate.

[0031] The inner and outer steel plate automatic positioning and oiling assembly comprises a frame, and an outer steel plate automatic positioning mechanism, an inner steel plate automatic positioning mechanism and an inner steel plate automatic oiling mechanism arranged on the frame.

[0032] The inner body steel plate automatic positioning mechanism comprises a positioning substrate, a reference positioning unit and a positioning adjustable unit, wherein the reference positioning unit and the positioning adjustable unit are both arranged on the positioning substrate.

[0033] The reference positioning unit comprises an inner body steel plate X-direction reference positioning component and an inner body steel plate Y-direction reference positioning component, wherein the inner body steel plate X-direction reference positioning component and the inner body steel plate Y-direction reference positioning component are arranged on two sides of the positioning substrate that are adjacent and perpendicular to each other.

[0034] The positioning adjustable unit comprises an inner body steel plate X-direction positioning adjustable component and an inner body steel plate Y-direction positioning adjustable component arranged on the remaining two sides of the positioning base plate, the inner body steel plate X-direction reference positioning component is arranged relative to the inner body steel plate X-direction positioning adjustable component, and the inner body steel plate Y-direction reference positioning component is arranged relative to the inner body steel plate Y-direction positioning adjustable component.

[0035] The inner body steel plate automatic oiling mechanism comprises an oil box, a brush X-direction drive assembly and a brush Y-direction drive assembly, the brush Y-direction drive assembly comprises a first motor and a Y-direction linear guide, the Y-direction linear guide is arranged on a frame and is located outside a positioning base plate, the motor shaft of the first motor is drivingly connected to the Y-direction linear guide, the brush X-direction drive assembly comprises a second motor, an X-direction linear guide, a support plate, a fourth cylinder and a brush holder, the motor shaft of the second motor is drivingly connected to the X-direction linear guide, the X-direction linear guide is arranged on the support plate, and the support plate is drivingly connected to a slider of the Y-direction linear guide, the fourth cylinder is arranged on the slider of the X-direction linear guide, and a brush holder is arranged on the top rod of the fourth cylinder;

[0036] When the present invention is used, the material is placed on the material distribution assembly in advance, and then the material is grabbed by the material grabbing assembly and placed on the positioning base plate of the inner body steel plate automatic positioning mechanism. The two adjacent and mutually perpendicular side edges of the material are respectively located on one side of the inner body steel plate X-direction reference positioning component and the inner body steel plate Y-direction reference positioning component, and the material is pre-positioned by the reference, and then the inner body steel plate X-direction positioning adjustable component and the inner body steel plate Y-direction positioning adjustable component are used to perform secondary positioning on the remaining two side edges of the material respectively. After the material is positioned, the inner body steel plate automatic oiling mechanism oils the surface of the material, and finally the material grabbing assembly is used to re-position the material from The present invention grabs materials on the positioning substrate and feeds them into the mold of the hydraulic press for compression molding. The advantages of the present invention are: first, the present invention separates the superimposed materials through the material dividing assembly, which is not only convenient for material taking, but also effectively prevents double pieces of material from being fed into the hydraulic press, thereby ensuring the normal operation of the hydraulic press and not causing damage to the mold due to the feeding of double materials; second, the present invention utilizes the material dividing assembly to divide the materials, grabs the materials through the material grabbing assembly, feeds them to the positioning oiling assembly and feeds them into the mold of the hydraulic press for compression molding, and replaces the pure manual operation in the existing technology through automated production, thereby reducing labor intensity, saving not only time and effort, but also improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of a specific implementation mode of the present invention;

[0038] Figure 2 It is a structural schematic diagram of the automatic positioning and oiling assembly of the inner and outer body steel plates of the present invention;

[0039] Figure 3 yes Figure 2 Schematic diagram of the left side;

[0040] Figure 4 yes Figure 2 A right side schematic diagram of

[0041] Figure 5 yes Figure 2 A schematic diagram of the three-dimensional structure of the inner body steel plate automatic positioning mechanism and the inner body steel plate automatic oiling mechanism;

[0042] Figure 6 yes Figure 2 Schematic diagram of the three-dimensional structure of the automatic positioning mechanism of the middle and outer body steel plates;

[0043] Figure 7 It is a three-dimensional structural schematic diagram of the automatic positioning and oiling assembly of the inner and outer body steel plates of the present invention;

[0044] Figure 8 It is a structural schematic diagram of the material distribution assembly of the present invention;

[0045] Fig. 9 yes Figure 8 A top view schematic diagram of

[0046] Fig.10 yes Figure 8 A schematic diagram of the three-dimensional structure of the adjustable bracket;

[0047] Fig.11 It is a three-dimensional structural schematic diagram of the material distribution assembly of the present invention;

[0048] Fig.12 It is a three-dimensional structural schematic diagram of the material grabbing assembly of the present invention;

[0049] Fig.13 yes Fig.12 The structural diagram of the six-axis robot is not included;

[0050] Fig.14 yes Fig.13 A top view of

[0051] Fig.15 yes Fig.12 Schematic diagram of the three-dimensional structure of the grasping brace;

[0052] Fig.16 yes Fig.13 Schematic diagram of the three-dimensional structure. DETAILED DESCRIPTION

[0053] The present invention is further described below with reference to the accompanying drawings and given embodiments, but is not limited thereto.

[0054] like Figures 1 to 16 As shown, an automatic material discharging device for stretching inner and outer steel plates of a fuel tank comprises a material dividing assembly FLZC, a material grabbing assembly ZLZC and an automatic positioning and oiling assembly DTZC for inner and outer steel plates, which are arranged separately on a bottom plate.

[0055] The inner and outer steel plate automatic positioning and oiling assembly DTZC comprises a frame 14, and an outer steel plate automatic positioning mechanism, an inner steel plate automatic positioning mechanism and an inner steel plate automatic oiling mechanism arranged on the frame 14.

[0056] The inner body steel plate automatic positioning mechanism comprises a positioning substrate 11, a reference positioning unit 12 and a positioning adjustable unit 13, wherein the reference positioning unit 12 and the positioning adjustable unit 13 are both arranged on the positioning substrate 11.

[0057] The reference positioning unit 12 includes an inner body steel plate X-direction reference positioning component 121 and an inner body steel plate Y-direction reference positioning component 122, wherein the inner body steel plate X-direction reference positioning component 121 and the inner body steel plate Y-direction reference positioning component 122 are arranged on two sides of the positioning substrate 11 that are adjacent and perpendicular to each other.

[0058] The positioning adjustable unit 13 comprises an inner body steel plate X-direction positioning adjustable component 131 and an inner body steel plate Y-direction positioning adjustable component 132 arranged on the remaining two sides of the positioning base plate 11, the inner body steel plate X-direction reference positioning component 121 is arranged opposite to the inner body steel plate X-direction positioning adjustable component 131, and the inner body steel plate Y-direction reference positioning component 122 is arranged opposite to the inner body steel plate Y-direction positioning adjustable component 132.

[0059] The inner steel plate automatic oiling mechanism includes an oil box 21, a brush X-direction drive assembly and a brush Y-direction drive assembly, the brush Y-direction drive assembly includes a first motor 22 and a Y-direction linear guide 23, the Y-direction linear guide 22 is arranged on the frame 14 and is located on the outside of the positioning base plate 11, the motor shaft of the first motor 22 is transmission-connected with the Y-direction linear guide 23, the brush X-direction drive assembly includes a second motor 24, an X-direction linear guide 25, a support plate 26, a fourth cylinder 27 and a brush holder 28, the motor shaft of the second motor 24 is transmission-connected with the X-direction linear guide 25, the X-direction linear guide 25 is arranged on the support plate 26, and the support plate 26 is transmission-connected with the slider of the Y-direction linear guide 22, the fourth cylinder 27 is arranged on the slider of the X-direction linear guide 25, and the brush holder 28 is provided on the top rod of the fourth cylinder 27.

[0060] like Figure 5 , 7 As shown, in order to conveniently receive the oil flowing down after the material is oiled, the inner steel plate automatic oiling mechanism also includes an oil receiving trough plate 29, and the oil receiving trough plate 29 is installed on the frame 14, and the positioning base plate 11 and the oil box 21 are both arranged on the oil receiving trough plate 29.

[0061] like Figure 5 , 6As shown, in order to facilitate the pre-reference positioning and secondary positioning of the inner body steel plate, the inner body steel plate X-direction reference positioning component 121 includes a first support block 1211 and a first positioning block 1212, the first support block 1211 is arranged on the positioning substrate 11, and the first positioning block 1212 is arranged on the first support block 1211; the inner body steel plate Y-direction reference positioning component 122 includes a second support block 1221 and a second positioning block 1222, the second support block 1221 is arranged on the positioning substrate 11 and is arranged perpendicular to the first support block 1211, and the second positioning block 1222 is arranged on the second support block 1221; the inner body steel plate X-direction positioning adjustable component 131 includes a first cylinder 1311, a first stopper 1312, a first slider 1313, a first guide rail 1314 and a third support block 1315, two third support blocks 1315 arranged side by side are provided on the positioning substrate 11, and each third support block 1315 is provided with a plurality of third support blocks 1315 arranged side by side. A first guide rail 1314 is provided on the support block 1315, the first cylinder 1311 is installed at the bottom of the first slider 1313, and the two ends of the first slider 1313 are respectively slidably matched with the corresponding first guide rail 1314, and the first stopper 1312 is fixedly connected to the push rod of the first cylinder 1311; the inner body steel plate Y-axis positioning adjustable component 132 includes a second cylinder 1321, a second stopper 1322, a second slider 1323, a second guide rail 1324 and a fourth support block 1325, two fourth support blocks 1325 arranged side by side are provided on the positioning substrate 11, each fourth support block 1325 is respectively provided with a second guide rail 1324, the second cylinder 1321 is installed at the bottom of the second slider 1323, and the two ends of the second slider 1323 are respectively slidably matched with the corresponding second guide rail 1324, and the second stopper 1322 is fixedly connected to the push rod of the second cylinder 1321.

[0062] like Figure 5 As shown, in order to facilitate the detection of whether there is material and whether it is double material, the inner body steel plate automatic positioning mechanism also includes an inner body steel plate material detection unit 15, and the inner body steel plate material detection unit 15 includes a third cylinder 151, a first U-shaped block 152, a first detection block 153, a first pressure block 154 and a first optical fiber sensor 155. The third cylinder 151 is arranged on the frame 14 and is located on the outside of the inner body steel plate X-axis reference positioning assembly 121. The push rod of the third cylinder 151 is fixedly connected to the first U-shaped block 152, and the first U-shaped block 152 is hingedly connected to the first detection block 153. The first pressure block 154 is installed on the first detection block 153, and the first optical fiber sensor 155 is arranged on one side of the first detection block 153.

[0063] like Figure 6As shown, in order to facilitate the reference pre-positioning and secondary precise positioning of the outer body steel plate, as well as to detect whether there is material on the positioning base and whether it is double material, the outer body steel plate automatic positioning mechanism includes a positioning base 31 and an outer body steel plate material detection unit 36, and an outer body steel plate X-direction reference positioning component 32, an outer body steel plate Y-direction reference positioning component 33, an outer body steel plate X-direction positioning adjustable component 34 and an outer body steel plate Y-direction positioning adjustable component 35 arranged around the positioning base 31, the positioning base 31 is arranged on the other side of the frame 14, the outer body steel plate X-direction reference positioning component 32 and the outer body steel plate X-direction positioning adjustable component 34 are arranged opposite to each other, and the outer body steel plate Y-direction reference positioning component 33 is arranged opposite to the outer body steel plate X-direction positioning adjustable component 34. The positioning assembly 35 is arranged relative to the outer steel plate Y-axis positioning adjustable assembly 92; the outer steel plate material detection unit 36 ​​includes a seventh cylinder 361, a second U-shaped block 362, a second detection block 363, a second pressure block 364 and a second optical fiber sensor 365, the seventh cylinder 361 is arranged on the positioning base 31 and is located on the outside of the outer steel plate X-axis reference positioning assembly 32, the push rod of the seventh cylinder 361 is fixedly connected to the second U-shaped block 362, and the second U-shaped block 362 is hingedly connected to the second detection block 363, the second pressure block 364 is installed on the second detection block 363, and the second optical fiber sensor 365 is arranged on one side of the second detection block 363.

[0064] like Figure 6As shown, in order to make the structure of the present invention more reasonable, the outer body steel plate X-axis reference positioning assembly 32 includes a fifth support block 321 and a third positioning block 322, the fifth support block 321 is arranged on the positioning base frame 31, and the third positioning block 322 is arranged on the fifth support block 321; the outer body steel plate Y-axis reference positioning assembly 33 includes a sixth support block 331 and a fourth positioning block 332, the sixth support block 331 is arranged on the positioning base frame 31 and is arranged perpendicular to the fifth support block 321, and the fourth positioning block 332 is arranged on the sixth support block 331; the outer body steel plate X-axis adjustable positioning assembly 34 includes a fifth cylinder 341, a third stopper 342, a third slider 343, a third guide rail 344 and a seventh support block 345, and two seventh support blocks 345 arranged side by side are provided on the positioning base frame 31, and each seventh support block 345 are respectively provided with third guide rails 344, the fifth cylinder 341 is installed at the bottom of the third slider 343, and the two ends of the third slider 343 are respectively slidably matched with the corresponding third guide rails 344, and the third stopper 342 is fixedly connected to the push rod of the fifth cylinder 341; the outer body steel plate Y-axis positioning adjustable component 35 includes a sixth cylinder 351, a fourth stopper 352, a fourth slider 353, a fourth guide rail 354 and an eighth support block 355, two eighth support blocks 355 arranged side by side are provided on the positioning base 31, and each eighth support block 355 is respectively provided with a fourth guide rail 354, the sixth cylinder 351 is installed at the bottom of the fourth slider 353, and the two ends of the fourth slider 353 are respectively slidably matched with the corresponding fourth guide rails 354, and the fourth stopper 352 is fixedly connected to the push rod of the sixth cylinder 351.

[0065] like Figure 8 , 9, 10, and 11, in order to facilitate the separation of materials that are bonded together, the material separation assembly FLZC includes a material seat 41, a first reference positioning frame 42, a second reference positioning frame 43, a first magnetic separator 44, a second magnetic separator 45, and an adjustable bracket 46. The first reference positioning frame 42, the second reference positioning frame 43, and the two ends of the adjustable bracket 46 are respectively arranged around the material seat 41, the first magnetic separator 44 and the second magnetic separator 45 are arranged at the two ends of the adjustable bracket 46, the first reference positioning frame 42 is arranged opposite to the first magnetic separator 44, the second reference positioning frame 43 is arranged opposite to the second magnetic separator 45, and a material detection mechanism 47 is provided on one side of the first reference positioning frame 42. The material detection mechanism 47 includes a detection column 471 and an optical fiber sensor 472. The optical fiber sensor 472 is installed on the detection column 471. The adjustable bracket 46 includes a fixed bracket seat 461, a primary adjustment plate 462, a secondary adjustment plate 463 and a magnetic separator mounting plate 464. The fixed bracket seat 461 is provided with two primary adjustment plates 462 arranged up and down, and the primary adjustment plate 462 is rotatably matched with the fixed bracket seat 461. Each primary adjustment plate 462 is rotatably connected to the corresponding secondary adjustment plate 463 through a pin shaft. The first magnetic separator 44 and the second magnetic separator 45 are fixedly connected to the corresponding secondary adjustment plate 463 through the magnetic separator mounting plate 464.

[0066] like Figure 8 , 11 As shown, in order to further improve the rationality of the present invention, the first reference positioning frame 42 includes a first reference positioning seat 421 and a first reference positioning column 422, the first reference positioning seat 421 is arranged on one side of the material seat 41, and is fixedly connected to the first reference positioning column 422, the second reference positioning frame 43 includes a second reference positioning seat 431 and a second reference positioning column 432, the second reference positioning seat 431 is arranged on the other side of the material seat 41 and is arranged perpendicular to the first reference positioning seat 421, and the second reference positioning seat 431 is fixedly connected to the second reference positioning column 432.

[0067] like Fig.10 As shown, in order to facilitate the adjustment of the adjustable bracket, the adjustment plate of the adjustable bracket is surrounded by the outer periphery of the material seat 41, and the two ends of the first-level adjustment plate 462 are respectively provided with a first-level sleeve 4621, and the two ends of the second-level adjustment plate 463 are respectively provided with a second-level sleeve 4631. The first-level sleeve 4621 at one end of the first-level adjustment plate 462 is sleeved on the fixed bracket seat 461 and rotatably connected thereto, and the other end is rotatably connected to a second-level sleeve 4631 of the second-level adjustment plate 463 through a pin shaft. The other second-level sleeve 4631 of the second-level adjustment plate 463 and the magnetic spreader mounting plate 464 are both sleeved on a pin shaft.

[0068] like Fig.10 As shown, in order to facilitate the adjustment of the magnetic separator, the magnetic separator mounting plate 464 includes a connecting plate 4641 and a sleeve 4642, the connecting plate 4641 is fixedly connected to the sleeve 4642, and another secondary sleeve 4631 of the secondary adjustment plate 463 and the sleeve 4642 are sleeved on a pin shaft.

[0069] like Fig.12 , 13 As shown in Figures 14, 15 and 16, in order to facilitate the grabbing of materials, the grabbing assembly ZLZC includes a lever arm 51, a grabbing bracket connecting rod 52, a grabbing unit 53, a gripping mechanism 54 and a six-axis robot 55. The lever arm 51 and the grabbing bracket connecting rod 52 are arranged perpendicular to each other, and one end of the lever arm 51 is fixedly connected to the grabbing bracket connecting rod 52 through a connecting block 56, and the other end is transmission-connected to the transmission arm of the six-axis robot 55 through a transmission arm connecting seat 57. The grabbing bracket connecting rod 52 is provided with a plurality of grabbing units 53, each grabbing unit 53 is composed of two groups of gripping mechanisms 54 arranged in opposite directions, and each group of gripping mechanisms 54 includes a grabbing bracket 541, a suction cup fixing frame 542 and a suction cup 543. One end of the grabbing bracket 541 is sleeved on the grabbing bracket connecting rod 52, and the other end is provided with a suction cup fixing frame 542, and the suction cup 543 is installed on the suction cup fixing frame 542.

[0070] like Fig.13 , 16 As shown, in order to facilitate the adjustment of the length of the connecting rod, the grasping brace 541 includes a connecting sleeve 5411, a clamp 5412 and a connecting rod 5413, one end of the connecting sleeve 5411 is hingedly connected to the clamp 5412, one end of the connecting rod 5413 is inserted into the port at the other end of the connecting sleeve 5411 and fixed as a whole by fasteners, the suction cup fixing frame 542 is arranged at the other end of the connecting rod 5413, and the clamp 5412 is clamped on the grasping brace connecting rod 52 and connected as a whole by fasteners.

[0071] like Fig.13 As shown, in order to facilitate the rotation of the suction cup, the gripping mechanism 54 also includes a suction cup adjustment seat 544, which is rotatably supported on the other end of the connecting rod 5413 and fastened together by fasteners, and the suction cup fixing frame 542 has a connecting shaft 5421, and the connecting shaft 5421 of the suction cup fixing frame 542 is rotatably connected to the suction cup adjustment seat 544.

[0072] The working principle of the present invention is:

[0073] Material separation: The material 7 (steel plate) is placed on the material seat 41 in advance, and the two adjacent and perpendicular sides of the steel plate are referenced and positioned by the first reference positioning frame 42 and the second reference positioning frame 43. The first reference positioning column 422 and the second reference positioning column 432 are respectively attached to the two side walls, and then the adjustable bracket 46 is adjusted according to the outer dimensions of the material, and the first adjustment plate 462 and the second adjustment plate 463 are rotated. The respective sleeves are rotated relative to the pin shaft, so that the adjustment plate of the adjustable bracket 46 can be surrounded by the remaining two adjacent and perpendicular sides of the material seat 41. The first reference positioning column 422 is arranged opposite to the first magnetic separator 44 of the adjustable bracket 46, and the second reference positioning column 432 is arranged opposite to the second magnetic separator 45. The first magnetic separator 44 and the second magnetic separator 45 are located at the two adjacent sides of the material and separate the material at the top of the material seat 41 to prevent adjacent steel plates from sticking to each other, thereby completing material separation.

[0074] Material grabbing: Pre-adjust the angles of the grabbing bracket and the suction cup according to the size of the material to facilitate the suction cup to vacuum absorb the material. The transmission arm of the six-axis robot 55 drives the lever arm 1 to move above the material placement seat 41, and the grabbing unit 53 is used to grab the material. The suction cup 543 of the gripping claw mechanism 54 of the grabbing unit 53 vacuum absorbs the material, and then the six-axis robot 55 transports it to the inner and outer body steel plate automatic positioning and oiling assembly DTZC to implement the positioning and oiling process.

[0075] The positioning process of the inner steel plate is: pre-adjust the inner steel plate X-axis positioning adjustable component 121 and the inner steel plate Y-axis positioning adjustable component 122 according to the specifications of the inner steel plate, that is, adjust the position of the corresponding cylinder by sliding the slider on the guide rail to ensure that the running stroke of the cylinder's push rod can be against the side of the material.

[0076] The six-axis robot 55 places one X-direction side of the inner body steel plate against one side of the first positioning block 1212, and one Y-direction side of the inner body steel plate against one side of the second positioning block 1222. The push rod of the first cylinder 1311 drives the first stopper 1312 to move, so that the first stopper 1312 is against another X-direction side of the inner body steel plate. The push rod of the second cylinder 1321 drives the second stopper 1322 to move, so that the second stopper 1322 is against another Y-direction side of the inner body steel plate. In this way, it can be ensured that the four sides of the inner body steel plate are all positioned to prevent movement during the oiling process.

[0077] The inner steel plate material detection unit 15 detects whether there is one piece or two pieces of material on the positioning substrate 11. If the first pressing block 154 only presses one piece of material, the light emitted by the first optical fiber sensor 155 can naturally pass through the first detection block 153. Otherwise, when the first pressing block 154 presses two pieces of material, the light emitted by the first optical fiber sensor 155 will be blocked by the first detection block 153, and an alarm signal will be issued.

[0078] The oiling process of the inner body steel plate is as follows: the brush is mounted on the brush rack 28, the motor shaft of the first motor 22 drives the Y-axis linear guide 23 to move to a certain position, and at the same time, the brush X-axis drive assembly uses the support plate 26 to move as a whole, and then the second motor 24 drives the fourth cylinder 27 through the X-axis linear guide 25 to move repeatedly, and then the brush oils the surface of the inner body steel plate back and forth. If the oiling position needs to be adjusted, it is only necessary to pre-adjust the overall position of the brush X-axis drive assembly through the brush Y-axis drive assembly, and then the brush X-axis drive assembly drives the brush to oil the corresponding position of the inner body steel plate, and finally the six-axis robot 55 of the grabbing assembly drives the grabbing unit to grab the material from the positioning substrate again and send it into the mold of the hydraulic press 5 for molding.

[0079] The positioning process of the outer steel plate is: the outer steel plate X-axis positioning adjustable component 341 and the outer steel plate Y-axis positioning adjustable component 352 are adjusted in advance according to the specifications of the outer steel plate, that is, the position of the corresponding cylinder is adjusted by sliding the slider on the guide rail to ensure that the running stroke of the cylinder's top rod can be against the side of the material.

[0080] The outer body steel plate is placed on the positioning base frame 31 through the material grabbing device, and an X-direction side edge and a Y-direction side edge of the outer body steel plate are respectively against one side of the corresponding third positioning block 322 and one side of the fourth positioning block 332, and the push rod of the fifth cylinder 341 drives the third stopper 342 to move, so that the third stopper 342 is against the other X-direction side edge of the outer body steel plate, and the push rod of the sixth cylinder 351 drives the fourth stopper 352 to move, so that the fourth stopper 352 is against the other Y-direction side edge of the outer body steel plate, so that the four side edges of the outer body steel plate can be ensured to be positioned to prevent movement during the oiling process.

[0081] If the second pressing block 364 presses only one piece of material, the light emitted by the second optical fiber sensor 365 can naturally pass through the second detection block 363. Otherwise, when the second pressing block 364 presses two pieces of material, the light emitted by the second optical fiber sensor 365 will be blocked by the second detection block 363, and an alarm signal will be issued. If there is only one piece of material, the six-axis robot 55 of the grabbing assembly will drive the grabbing unit to grab the material from the positioning substrate again and send it into the mold of the hydraulic press 5 for molding.

[0082] The advantages of the present invention are: first, the present invention separates the superimposed materials through the material separation assembly, which is not only convenient for material removal, but also effectively prevents double pieces of material from being fed into the hydraulic press, thereby ensuring the normal operation of the hydraulic press and not causing damage to the mold due to the feeding of double materials; second, the present invention utilizes the material separation assembly to separate the materials, and uses the material grabbing assembly to grab the materials and send them to the positioning oiling assembly and to the mold of the hydraulic press for molding. Automated production replaces the pure manual operation in the existing technology, thereby reducing labor intensity, saving not only time and effort, but also improving production efficiency.

[0083] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An automatic material discharge device for stretching inner and outer steel plates of a fuel tank, characterized in that: It includes the material dividing assembly (FLZC), the material grabbing assembly (ZLZC) and the inner and outer steel plate automatic positioning and oiling assembly (DTZC) which are arranged separately on the bottom plate. The inner and outer steel plate automatic positioning and oiling assembly (DTZC) comprises a frame (14), and an outer steel plate automatic positioning mechanism, an inner steel plate automatic positioning mechanism and an inner steel plate automatic oiling mechanism arranged on the frame (14). The inner body steel plate automatic positioning mechanism comprises a positioning substrate (11), a reference positioning unit (12) and a positioning adjustable unit (13), wherein the reference positioning unit (12) and the positioning adjustable unit (13) are both arranged on the positioning substrate (11). The reference positioning unit (12) comprises an inner body steel plate X-direction reference positioning component (121) and an inner body steel plate Y-direction reference positioning component (122), wherein the inner body steel plate X-direction reference positioning component (121) and the inner body steel plate Y-direction reference positioning component (122) are arranged on two sides of the positioning substrate (11) adjacent to each other and perpendicular to each other. The inner body steel plate X-axis reference positioning assembly (121) comprises a first support block (1211) and a first positioning block (1212), wherein the first support block (1211) is arranged on the positioning substrate (11), and the first positioning block (1212) is arranged on the first support block (1211). The inner body steel plate Y-axis reference positioning assembly (122) comprises a second support block (1221) and a second positioning block (1222), wherein the second support block (1221) is arranged on the positioning substrate (11) and is arranged perpendicular to the first support block (1211), and the second positioning block (1222) is arranged on the second support block (1221). The positioning adjustable unit (13) comprises an inner body steel plate X-direction positioning adjustable component (131) and an inner body steel plate Y-direction positioning adjustable component (132) arranged on the remaining two sides of the positioning base plate (11); the inner body steel plate X-direction reference positioning component (121) is arranged relative to the inner body steel plate X-direction positioning adjustable component (131); the inner body steel plate Y-direction reference positioning component (122) is arranged relative to the inner body steel plate Y-direction positioning adjustable component (132); The inner steel plate automatic oiling mechanism comprises an oil box (21), a brush X-direction drive assembly and a brush Y-direction drive assembly, the brush Y-direction drive assembly comprises a first motor (22) and a Y-direction linear guide rail (23), the Y-direction linear guide rail (23) is arranged on a frame (14) and located outside a positioning base plate (11), the motor shaft of the first motor (22) is drivingly connected to the Y-direction linear guide rail (23), the brush X-direction drive assembly comprises a second motor (24), an X-direction linear guide rail (23) and a second motor (25). The invention relates to a plurality of linear guide rails (25), a support plate (26), a fourth air cylinder (27) and a brush holder (28), wherein the motor shaft of the second motor (24) is transmission-connected with the X-direction linear guide rail (25), the X-direction linear guide rail (25) is arranged on the support plate (26), and the support plate (26) is transmission-connected with a slider of the Y-direction linear guide rail (23), the fourth air cylinder (27) is arranged on the slider of the X-direction linear guide rail (25), and the brush holder (28) is arranged on the top rod of the fourth air cylinder (27), The material grabbing assembly (ZLZC) comprises a lever arm (51), a grabbing support connecting rod (52), a grabbing unit (53) and a six-axis robot (55). The lever arm (51) and the grasping support connecting rod (52) are arranged perpendicular to each other, and one end of the lever arm (51) is fixedly connected to the grasping support connecting rod (52), and the other end is transmission-connected to a transmission arm of a six-axis robot (55), and the grasping support connecting rod (52) is provided with a plurality of grasping units (53).

2. The automatic material discharging device for stretching inner and outer steel plates of a fuel tank according to claim 1 is characterized in that: The inner body steel plate X-axis positioning adjustable component (131) comprises a first cylinder (1311), a first stopper (1312), a first slider (1313), a first guide rail (1314) and a third support block (1315); two third support blocks (1315) arranged side by side are provided on the positioning base plate (11); each third support block (1315) is provided with a first guide rail (1314); the first cylinder (1311) is installed at the bottom of the first slider (1313), and the two ends of the first slider (1313) are respectively slidably matched with the corresponding first guide rail (1314); the first stopper (1312) is fixedly connected to the top rod of the first cylinder (1311); The inner body steel plate Y-axis positioning adjustable component (132) comprises a second cylinder (1321), a second stopper (1322), a second slider (1323), a second guide rail (1324) and a fourth support block (1325). Two fourth support blocks (1325) arranged side by side are provided on the positioning base plate (11). Each fourth support block (1325) is provided with a second guide rail (1324). The second cylinder (1321) is installed at the bottom of the second slider (1323), and the two ends of the second slider (1323) are respectively slidably matched with the corresponding second guide rail (1324). The second stopper (1322) is fixedly connected to the top rod of the second cylinder (1321).

3. The automatic material discharging device for stretching inner and outer steel plates of a fuel tank according to claim 1 is characterized in that: The inner body steel plate automatic positioning mechanism also includes an inner body steel plate material detection unit (15), and the inner body steel plate material detection unit (15) includes a third cylinder (151), a first U-shaped block (152), a first detection block (153), a first pressure block (154) and a first optical fiber sensor (155). The third cylinder (151) is arranged on the frame (14) and is located on the outer side of the inner body steel plate X-axis reference positioning assembly (121). The top rod of the third cylinder (151) is fixedly connected to the first U-shaped block (152), and the first U-shaped block (152) is hingedly connected to the first detection block (153). The first pressure block (154) is installed on the first detection block (153), and the first optical fiber sensor (155) is arranged on one side of the first detection block (153).

4. The automatic material discharging device for stretching inner and outer steel plates of a fuel tank according to claim 1 is characterized in that: The outer body steel plate automatic positioning mechanism comprises a positioning base frame (31) and an outer body steel plate material detection unit (36), as well as an outer body steel plate X-direction reference positioning component (32), an outer body steel plate Y-direction reference positioning component (33), an outer body steel plate X-direction positioning adjustable component (34) and an outer body steel plate Y-direction positioning adjustable component (35) arranged around the positioning base frame (31), the positioning base frame (31) is arranged on the other side of the frame (14), the outer body steel plate X-direction reference positioning component (32) and the outer body steel plate X-direction positioning adjustable component (34) are arranged opposite to each other, and the outer body steel plate Y-direction reference positioning component (33) and the outer body steel plate Y-direction positioning adjustable component (35) are arranged opposite to each other; The outer body steel plate material detection unit (36) comprises a seventh cylinder (361), a second U-shaped block (362), a second detection block (363), a second pressure block (364) and a second optical fiber sensor (365); the seventh cylinder (361) is arranged on the positioning base frame (31) and is located on the outer side of the outer body steel plate X-axis reference positioning assembly (32); the push rod of the seventh cylinder (361) is fixedly connected to the second U-shaped block (362), and the second U-shaped block (362) is hingedly connected to the second detection block (363); the second pressure block (364) is installed on the second detection block (363); and the second optical fiber sensor (365) is arranged on one side of the second detection block (363).

5. The automatic material discharging device for stretching inner and outer steel plates of a fuel tank according to claim 4 is characterized in that: The outer body steel plate X-axis reference positioning assembly (32) comprises a fifth support block (321) and a third positioning block (322), wherein the fifth support block (321) is arranged on the positioning base frame (31), and the third positioning block (322) is arranged on the fifth support block (321); The outer body steel plate Y-axis reference positioning assembly (33) comprises a sixth support block (331) and a fourth positioning block (332), wherein the sixth support block (331) is arranged on the positioning base frame (31) and is arranged perpendicularly to the fifth support block (321), and the fourth positioning block (332) is arranged on the sixth support block (331); The outer body steel plate X-axis positioning adjustable component (34) comprises a fifth cylinder (341), a third stopper (342), a third slider (343), a third guide rail (344) and a seventh support block (345); two seventh support blocks (345) arranged side by side are provided on the positioning base frame (31); each seventh support block (345) is provided with a third guide rail (344); the fifth cylinder (341) is installed at the bottom of the third slider (343), and the two ends of the third slider (343) are respectively slidably matched with the corresponding third guide rail (344); the third stopper (342) is fixedly connected to the top rod of the fifth cylinder (341); The outer body steel plate Y-axis positioning adjustable component (35) comprises a sixth cylinder (351), a fourth stopper (352), a fourth slider (353), a fourth guide rail (354) and an eighth support block (355); two eighth support blocks (355) arranged side by side are provided on the positioning base frame (31); each eighth support block (355) is provided with a fourth guide rail (354); the sixth cylinder (351) is installed at the bottom of the fourth slider (353), and the two ends of the fourth slider (353) are respectively slidably matched with the corresponding fourth guide rail (354); the fourth stopper (352) is fixedly connected to the top rod of the sixth cylinder (351).

6. The automatic material discharging device for stretching inner and outer steel plates of a fuel tank according to claim 1 is characterized in that: The material dividing assembly (FLZC) comprises a material seat (41), a first reference positioning frame (42), a second reference positioning frame (43), a first magnetic spreader (44), a second magnetic spreader (45) and an adjustable bracket (46). The first reference positioning frame (42), the second reference positioning frame (43) and the two ends of the adjustable bracket (46) are respectively arranged around the material seat (41). The first magnetic spreader (44) and the second magnetic spreader (45) are arranged at the two ends of the adjustable bracket (46). The first reference positioning frame (42) is arranged opposite to the first magnetic spreader (44). The second reference positioning frame (43) is arranged opposite to the second magnetic spreader (45). A material detection mechanism (47) is arranged on one side of the first reference positioning frame (42). The material detection mechanism (47) comprises a detection column (471) and an optical fiber sensor (472). The optical fiber sensor (472) is installed on the detection column (471). The adjustable bracket (46) comprises a fixed bracket seat (461), a primary adjustment plate (462), a secondary adjustment plate (463) and a magnetic spreader mounting plate (464); the fixed bracket seat (461) is provided with two primary adjustment plates (462) arranged up and down, and the primary adjustment plates (462) are rotatably matched with the fixed bracket seat (461); each primary adjustment plate (462) is rotatably connected to the corresponding secondary adjustment plate (463) via a pin shaft; the first magnetic spreader (44) and the second magnetic spreader (45) are fixedly connected to the corresponding secondary adjustment plate (463) via the magnetic spreader mounting plate (464).

7. The automatic unloading device for stretching inner and outer steel plates of a fuel tank according to claim 6 is characterized by: The first-stage adjustment plate (462) is provided with a first-stage sleeve (4621) at both ends, and the second-stage adjustment plate (463) is provided with a second-stage sleeve (4631) at both ends. The first-stage sleeve (4621) at one end of the first-stage adjustment plate (462) is sleeved on the fixed support seat (461) and is rotatably connected thereto, and the other end is rotatably connected to a second-stage sleeve (4631) of the second-stage adjustment plate (463) via a pin shaft. The other second-stage sleeve (4631) of the second-stage adjustment plate (463) and the magnetic spreader mounting plate (464) are both sleeved on a pin shaft. The magnetic spreader mounting plate (464) comprises a connecting plate (4641) and a sleeve (4642), wherein the connecting plate (4641) is fixedly connected to the sleeve (4642), and another secondary sleeve (4631) of the secondary adjustment plate (463) and the sleeve (4642) are sleeved on a pin shaft.

8. The automatic material discharging device for stretching inner and outer steel plates of a fuel tank according to claim 1 is characterized in that: The material grabbing assembly (ZLZC) further comprises a claw mechanism (54), One end of the lever arm (51) is fixedly connected to the grabbing support connecting rod (52) via a connecting block (56), and the other end is transmission-connected to the transmission arm of the six-axis robot (55) via a transmission arm connecting seat (57). Each grasping unit (53) is composed of two groups of grasping claw mechanisms (54) arranged in opposite directions. Each group of grasping claw mechanisms (54) comprises a grasping support (541), a suction cup fixing frame (542) and a suction cup (543). One end of the grasping support (541) is sleeved on the grasping support connecting rod (52), and the other end is provided with a suction cup fixing frame (542). The suction cup (543) is mounted on the suction cup fixing frame (542).

9. The automatic material discharging device for stretching inner and outer steel plates of a fuel tank according to claim 8, characterized in that: The grasping brace (541) comprises a connecting sleeve (5411), a clamp (5412) and a connecting rod (5413); one end of the connecting sleeve (5411) is hingedly connected to the clamp (5412); one end of the connecting rod (5413) is inserted into a port at the other end of the connecting sleeve (5411) and fixed as a whole by a fastener; the suction cup fixing frame (542) is arranged at the other end of the connecting rod (5413); the clamp (5412) is clamped on the grasping brace connecting rod (52) and connected as a whole by a fastener.

10. The automatic material discharging device for stretching inner and outer steel plates of a fuel tank according to claim 9, characterized in that: The gripping claw mechanism (54) further comprises a suction cup adjustment seat (544), wherein the suction cup adjustment seat (544) is rotatably supported on the other end of the connecting rod (5413) and is fastened as a whole by a fastener, and the suction cup fixing frame (542) comprises a connecting shaft (5421), and the connecting shaft (5421) of the suction cup fixing frame (542) is rotatably connected to the suction cup adjustment seat (544).

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