Assembly of a plurality of components into a box

Abstract

The application relates to the technical field of pump truck manufacturing, and discloses a box assembling device and method, which comprises a centering mechanism and a positioning mechanism. The centering mechanism comprises a first moving part and a second moving part. In the box assembling process, the centering mechanism is used to center the upper cover plate and the lower cover plate, the centering of the two is guaranteed, the positioning mechanism cooperates with the centering mechanism, the upper cover plate and the lower cover plate which have been centered are temporarily fixed, the shift of the upper cover plate and the lower cover plate caused by the action force in the spot welding process is avoided, the center of the upper cover plate and the lower cover plate of the obtained support leg box body is kept aligned, the side edges of the upper cover plate and the lower cover plate do not need to be processed again, the box assembling time is reduced, and the box assembling efficiency is improved.

Description

Technical Field

[0001] This application belongs to the field of pump truck manufacturing technology, specifically relating to a container assembly device and method. Background Technology

[0002] The outriggers of the pump truck include an upper cover plate, a lower cover plate, a left web plate, and a right web plate. The fabrication of the outriggers requires assembling the upper cover plate, lower cover plate, left web plate, and right web plate into the welding position and fixing them by welding.

[0003] Currently, the assembly and welding of outriggers are mainly done manually. The specific method is as follows: Workers first draw positioning lines for the left and right web plates on the lower cover plate, then place the lower cover plate on a platform and press it firmly. The first web plate is hoisted and aligned with the positioning lines on the lower cover plate. A square is used to measure the perpendicularity of the first web plate to the lower cover plate, and the first web plate is adjusted to be perpendicular to the lower cover plate. Then, the first web plate is welded to the lower cover plate. The second web plate is hoisted and aligned with the positioning lines on the lower cover plate, and a square is used to measure the perpendicularity of the second web plate. Check the perpendicularity of the first and second web plates and adjust the second web plate to be perpendicular to the second web plate. Measure the distance between the two web plates and adjust the distance between the second and first web plates to equal the assembly distance. Then weld the second web plate onto the second web plate. Hoist the upper cover plate to the top of the two web plates. Use a square to measure the alignment of the sides of the upper and lower cover plates. Adjust the upper cover plate to align with the sides of the lower cover plate. Check the wing dimensions of the web plates and cover plates. Then weld the upper cover plate onto the two web plates. The leg box is now complete.

[0004] The manual assembly method described above cannot guarantee that the upper and lower cover plates are aligned. After the boxes are assembled, the sides of the upper and lower cover plates need to be processed again to align their centers, which is time-consuming and affects assembly efficiency. Summary of the Invention

[0005] The purpose of this application is to provide a box assembly device and method for assembling outriggers. The device uses a mechanical structure to center the upper and lower cover plates and position the left and right web plates, so that the centers of the upper and lower cover plates of the assembled outrigger box are aligned. This eliminates the need to process the sides of the upper and lower cover plates again, saving time and improving assembly efficiency.

[0006] To achieve the above objectives, a first aspect of this application provides a box assembly device, comprising: a centering mechanism, the centering mechanism including a first moving part and a second moving part, which form a centering region for inserting an upper cover plate, a lower cover plate, a left web plate and a right web plate of a support leg; the first moving part and the second moving part are configured to move synchronously in a direction that approaches or moves away from each other to reduce or expand the centering region and center the upper cover plate and the lower cover plate to a welding position that is parallel and opposite to each other; and a positioning mechanism, the positioning mechanism having a positioning region for inserting the upper cover plate, the lower cover plate, the left web plate and the right web plate of the support leg, the positioning region being opposite to the centering region so that the upper cover plate, the lower cover plate, the left web plate and the right web plate are simultaneously located in the positioning region and the centering region; the positioning mechanism is used to fix the upper cover plate and the lower cover plate to the left web plate and the right web plate to a welding position that is perpendicular to each other.

[0007] In some embodiments, the first moving part includes a first moving support, a first lower centering component and a first upper centering component disposed on the first moving support, both the first lower centering component and the first upper centering component being located within a centering region. The first lower centering component is capable of contacting the edge of the lower cover plate to push the lower cover plate to a welding position, and the first upper centering component is capable of contacting the edge of the upper cover plate to push the upper cover plate to a welding position; and / or, the second moving part includes a second moving support, a second lower centering component and a second upper centering component disposed on the second moving support, both the second lower centering component and the second upper centering component being located within a centering region. The second lower centering component is capable of contacting the edge of the lower cover plate to push the lower cover plate to a welding position, and the second upper centering component is capable of contacting the edge of the upper cover plate to push the upper cover plate to a welding position.

[0008] In some implementations, the extension length of the first lower centering component toward the centering region is less than the extension length of the first upper centering component toward the centering region; and / or, the extension length of the second lower centering component toward the centering region is less than the extension length of the second upper centering component toward the centering region.

[0009] In some embodiments, the first upper centering component slides with the first movable support, and the first upper centering component has an angle between the moving direction of the first movable support and the moving direction of the first movable support itself; and / or, the second upper centering component slides with the second movable support, and the second upper centering component has an angle between the moving direction of the second movable support and the moving direction of the second movable support itself.

[0010] In some embodiments, the centering mechanism further includes a support member located between the first moving part and the second moving part, the support member being able to contact the lower cover plate to support the lower cover plate; and / or, the positioning mechanism includes a first positioning part and a second positioning part, forming a positioning area between them, the first positioning part and the second positioning part being configured to move synchronously in a direction that approaches or moves away from each other to shrink or expand the positioning area, the moving direction of the first positioning part being the same as the moving direction of the first moving part, and the moving direction of the second positioning part being the same as the moving direction of the second moving part.

[0011] In some embodiments, the first positioning part includes a first positioning support and a first lower positioning component, a first middle positioning component, and a first upper positioning component disposed on the first positioning support. The first lower positioning component can clamp the lower cover plate to fix the lower cover plate, the first middle positioning component can adsorb the left web plate to fix the left web plate to the welding position, and the first upper positioning component can press and fix the upper cover plate to the left web plate and the right web plate; and / or, the second positioning part includes a second positioning support and a second lower positioning component, a second middle positioning component, and a second upper positioning component disposed on the second positioning support. The second lower positioning component can clamp the lower cover plate to fix the lower cover plate, the second middle positioning component can adsorb the right web plate to fix the right web plate to the welding position, and the second upper positioning component can press and fix the upper cover plate to the left web plate and the right web plate.

[0012] In some embodiments, a first lower positioning component is located within the positioning area. The first lower positioning component includes a first support block and a first clamping member disposed above the first support block. A first clamping area for clamping a lower cover plate can be formed between the first support block and the first clamping member. The first clamping member is movably engaged with a first positioning support and can move relative to the first support block to expand or shrink the first clamping area. And / or, a second lower positioning component is located within the positioning area. The second lower positioning component includes a second support block and a second clamping member disposed above the second support block. A second clamping area for clamping a lower cover plate is formed between the second support block and the second clamping member. The second clamping member is movably engaged with a second positioning support and can move relative to the second support block to expand or shrink the second clamping area.

[0013] In some embodiments, the first positioning component is located within the positioning area, and the minimum distance between the first positioning component and the second positioning part can be adjusted to be equal to the welding distance between the left and right web plates. The first positioning component includes a first positioning block and a first electromagnet disposed on the first positioning block. The first electromagnet can attract the left web plate to fix the left web plate to the welding position and make the left web plate perpendicular to the lower cover plate. And / or, the second positioning component is located within the positioning area, and the minimum distance between the second positioning component and the first positioning part can be adjusted to be equal to the welding distance between the left and right web plates. The second positioning component includes a second positioning block and a second electromagnet disposed on the second positioning block. The second electromagnet can attract the right web plate to fix the right web plate to the welding position and make the right web plate perpendicular to the lower cover plate.

[0014] In some embodiments, the first upper positioning assembly includes a first clamping member movably engaging with a first positioning support, the first clamping member being movable relative to the first positioning support in a direction toward or away from the first middle positioning assembly to clamp or release the upper cover plate; and / or, the second upper positioning assembly includes a second clamping member movably engaging with a second positioning support, the second clamping member being movable relative to the second positioning support in a direction toward or away from the second middle positioning assembly to clamp or release the upper cover plate.

[0015] In some embodiments, the assembly device further includes a base platform on which multiple centering mechanisms and multiple positioning mechanisms are provided. At least one centering mechanism and at least one positioning mechanism slide in cooperation with the base platform. The sliding direction of the centering mechanism and the positioning mechanism relative to the base platform has an angle with the moving direction of the first moving part and the second moving part.

[0016] The second aspect of this application provides a box assembly method, comprising the following steps: selecting sheet metal; cutting the sheet metal; leveling the sheet metal to obtain an upper cover plate, a lower cover plate, a left web plate, and a right web plate; milling the edges of the upper cover plate and the lower cover plate; and assembling the upper cover plate, the lower cover plate, the left web plate, and the right web plate using the aforementioned box assembly device to obtain a support leg box body.

[0017] The above technical solution involves using a positioning mechanism to first fix the lower cover plate to the welding position, then fixing the left and right web plates to welding positions perpendicular to the lower cover plate, and spot welding the left and right web plates to the lower cover plate. The upper cover plate is then placed on the left and right web plates. The first and second moving parts of the centering mechanism move synchronously to determine the welding position of the upper cover plate. The positioning mechanism then fixes the upper cover plate, and spot welding it to the left and right web plates, completing the leg assembly. During the assembly process, the centering mechanism aligns the upper and lower cover plates, ensuring their centers are aligned. The positioning mechanism, in conjunction with the centering mechanism, temporarily fixes the aligned upper and lower cover plates, preventing displacement caused by forces generated during spot welding. This ensures the centers of the upper and lower cover plates of the resulting leg housing remain aligned, eliminating the need for further processing of the sides of the upper and lower cover plates, reducing assembly time, and improving assembly efficiency.

[0018] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0020] Figure 1 This is a schematic diagram of the assembly device of the present invention;

[0021] Figure 2 for Figure 1 The right view;

[0022] Figure 3 This is a schematic diagram of the centering mechanism of the box assembly device of the present invention;

[0023] Figure 4 for Figure 3 Longitudinal sectional view;

[0024] Figure 5 This is a schematic diagram of the positioning mechanism of the box assembly device of the present invention;

[0025] Figure 6 for Figure 5 The main view;

[0026] Figure 7 for Figure 6 Sectional view of BB;

[0027] Figure 8 for Figure 5 The right view;

[0028] Figure 9 for Figure 8 Sectional view of CC;

[0029] Figure 10 A schematic diagram of the structure of the first mounting sleeve of the first upper positioning component of the positioning mechanism;

[0030] Figure 11 for Figure 10 The right view;

[0031] Figure 12 for Figure 11 Sectional view of DD;

[0032] Figure 13 for Figure 10 The main view;

[0033] Figure 14 This is a schematic diagram of the basic platform of the assembly device of the present invention;

[0034] Figure 15 This is a front view of the alignment mechanism of the box assembly device of the present invention engaging with the lower cover plate of the support leg;

[0035] Figure 16 This is a front view of the positioning mechanism of the assembly device of the present invention engaging with the lower cover plate of the support leg;

[0036] Figure 17 This is a front view of the positioning mechanism of the box assembly device of the present invention engaging with the left and right web plates of the support legs;

[0037] Figure 18 This is a front view of the alignment mechanism of the box assembly device of the present invention cooperating with the support leg box body;

[0038] Figure 19 This is a front view of the positioning mechanism and the support leg housing of the assembly device of the present invention;

[0039] Figure 20 This is a right view of the assembly device of the present invention in conjunction with the support leg housing;

[0040] Figure 21 Left view of the support leg;

[0041] Figure 22 for Figure 21 Sectional view of AA; and

[0042] Figure 23 This is a structural diagram of the upper and lower cover plates of the outrigger.

[0043] Explanation of reference numerals in the attached figures

[0044] 10. Centering mechanism; 11. First moving part; 111. First moving support; 112. First lower centering assembly; 1121. First fixing block; 1122. First lower bolt; 113. First upper centering assembly; 1131. First adjusting slider; 1132. First upper bolt; 114. First scale; 12. Second moving part; 121. Second moving support; 122. Second lower centering assembly; 1221. Second fixing block; 1222. Second lower bolt; 123. Second upper centering assembly; 1231. Second adjusting slider; 1232. Second upper bolt; 124. Second scale; 13. Support member; 14. Centering drive part; 141. Centering cylinder; 142. Second... 143. Rack; 15. Gear; 20. Centering base; 21. Positioning mechanism; 21. First positioning part; 211. First positioning support; 212. First lower positioning assembly; 2121. First support block; 2122. First clamping element; 2123. First clamping bolt; 213. First middle positioning assembly; 2131. First positioning block; 2132. First electromagnet; 2133. First fitting block; 2134. First operating button; 214. First upper positioning assembly; 2141. First clamping element; 2142. First connecting rod; 2143. First movable rod; 2144. First mounting sleeve; 21441. First spiral groove; 21442. First straight groove; 2145. First linkage shaft 2146. First outer shell; 2147. First guide post; 2148. First drive cylinder; 22. Second positioning part; 221. Second positioning support; 222. Second lower positioning assembly; 2221. Second support block; 2222. Second clamping member; 2223. Second clamping bolt; 223. Second middle positioning assembly; 2231. Second positioning block; 2232. Second electromagnet; 2233. Second fitting block; 2234. Second operating button; 224. Second upper positioning assembly; 2241. Second clamping member; 2242. Second connecting rod; 2243. Second movable rod; 2244. Second mounting sleeve; 22441. Second spiral groove; 22442. Second straight groove; 224 5. Second linkage shaft; 2246. Second outer shell; 2247. Second guide post; 2248. Second drive cylinder; 23. Positioning drive unit; 231. First positioning slider; 232. First lead screw; 233. Second positioning slider; 234. Second lead screw; 235. Positioning motor; 236. First nut; 237. Second nut; 238. Positioning slide rail; 24. Positioning base; 30. Base platform; 31. First guide slider; 32. First guide slide rail; 33. First pin; 34. Second guide slider; 35. Second guide slide rail; 36. Second pin; 37. Operating table; 90. Support leg; 91. Upper cover plate; 92. Lower cover plate; 93. Left web plate; 94. Right web plate. Detailed Implementation

[0045] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0046] It should be noted that the support leg 90 is assembled by combining the upper cover plate 91, the lower cover plate 92, the left web plate 93, and the right web plate 94 to form the support leg box.

[0047] See Figures 1 to 4 , Figures 20 to 23 As shown, the present invention provides a box assembly device, including: a centering mechanism 10, the centering mechanism 10 including a first moving part 11 and a second moving part 12, which form a centering region for inserting an upper cover plate 91, a lower cover plate 92, a left web plate 93 and a right web plate 94 of a support leg 90. The first moving part 11 and the second moving part 12 are configured to move synchronously toward or away from each other to shrink or expand the centering region and center the upper cover plate 91 and the lower cover plate 92 to each other. Parallel and aligned welding positions; and a positioning mechanism 20 having a positioning area for inserting the upper cover plate 91, lower cover plate 92, left web plate 93 and right web plate 94 of the support leg 90, the positioning area being aligned with the centering area so that the upper cover plate 91, lower cover plate 92, left web plate 93 and right web plate 94 are simultaneously located in the positioning area and the centering area, the positioning mechanism 20 being used to fix the upper cover plate 91 and lower cover plate 92 to the left web plate 93 and right web plate 94 to welding positions perpendicular to each other.

[0048] In this embodiment, the lower cover plate 92 is first placed in the centering area and the positioning area. The first moving part 11 and the second moving part 12 are then moved closer to each other until the lower cover plate 92 is centered at the welding position. The positioning mechanism 20 is then used to fix the lower cover plate 92. At this time, the minimum distance between the positioning mechanisms 20 is the required distance between the left web plate 93 and the right web plate 94, as well as the sum of the thicknesses of the left web plate 93 and the right web plate 94. The left web plate 93 is then fixed on the positioning mechanism 20, so that the left web plate 93 is located in the centering area and the positioning area. The left web plate 93 is then spot-welded to the lower cover plate 92. The right web plate 93 is then... The web plate 94 is fixed on the positioning mechanism 20, so that the right web plate 94 is located in the centering area and the positioning area. The right web plate 94 is spot welded to the lower cover plate 92. The first moving part 11 and the second moving part 12 are moved away from each other to provide sufficient space for subsequent operations. Finally, the upper cover plate 91 is placed in the centering area and the positioning area and overlapped on the left web plate 93 and the right web plate 94. The first moving part 11 and the second moving part 12 are moved closer to each other until the upper cover plate 91 is centered to the welding position. The upper cover plate 91 is spot welded to the left web plate 93 and the right web plate 94.

[0049] The design of the centering mechanism 10 and the positioning mechanism 20 allows the upper cover plate 91, lower cover plate 92, left web plate 93, and right web plate 94 to be mechanically positioned for welding, eliminating the need for operators to repeatedly measure, adjust, and calibrate their welding positions. Furthermore, when the left web plate 93 and right web plate 94 are fixed to the positioning mechanism 20, they always remain perpendicular to the upper cover plate 91 and lower cover plate 92. Regardless of adjustments made to the left web plate 93 and right web plate 94, they remain perpendicular to the upper cover plate 91 and lower cover plate 92, thus eliminating the need for operators to measure and verify the perpendicularity of the left web plate 93 and right web plate 94. The entire assembly process is time-efficient and highly effective.

[0050] Specifically, the first moving part 11 and the second moving part 12 are arranged symmetrically.

[0051] Specifically, such as Figure 22 and Figure 23 As shown, in the assembled support leg 90, the width of the lower cover plate 92 is W2, the width of the upper cover plate 91 is W3, the distance between the left web plate 93 and the right web plate 94 is W1, and the upper cover plate 91 protrudes laterally from the left web plate 93 and the right web plate 94 by a dimension of W4; the lower cover plate 92 is parallel to the upper cover plate 91, and the left web plate 93 and the right web plate 94 are both perpendicular to the lower cover plate 92 and also perpendicular to the upper cover plate 91.

[0052] See Figure 3 , Figure 4 , Figure 15 , Figure 18 as well as Figures 21 to 23 As shown, in some embodiments of the present invention, the first moving part 11 includes a first moving support 111, a first lower centering component 112 and a first upper centering component 113 disposed on the first moving support 111. Both the first lower centering component 112 and the first upper centering component 113 are located within the centering area. The first lower centering component 112 can contact the edge of the lower cover plate 92 to push the lower cover plate 92 to the welding position. The first upper centering component 113 can contact the edge of the upper cover plate 91 to push the upper cover plate 91... Moved to the welding position; the second moving part 12 includes a second moving support 121, a second lower centering component 122 and a second upper centering component 123 disposed on the second moving support 121. The second lower centering component 122 and the second upper centering component 123 are both located in the centering area. The second lower centering component 122 can contact the edge of the lower cover plate 92 to push the lower cover plate 92 to the welding position. The second upper centering component 123 can contact the edge of the upper cover plate 91 to push the upper cover plate 91 to the welding position.

[0053] In this embodiment, the first movable support 111 and the second movable support 121 can move synchronously toward each other or toward each other, thereby driving the first lower centering component 112 and the second lower centering component 122 to move synchronously toward each other or toward each other, and driving the first upper centering component 113 and the second upper centering component 123 to move synchronously toward each other or toward each other. When the first lower centering component 112 and the second lower centering component 122 move synchronously toward each other, the lower cover plate 92 can be pushed to the center position of the first lower centering component 112 and the second lower centering component 122. Similarly, when the first upper centering component 113 and the second upper centering component 123 move synchronously toward each other, the upper cover plate 91 can be pushed to the center position of the first upper centering component 113 and the second upper centering component 123. In this way, the connecting surface of the center line of the lower cover plate 92 and the center line of the upper cover plate 91 is perpendicular. In the top view direction, the center line of the lower cover plate 92 coincides with the center line of the upper cover plate 91, so that the side of the lower cover plate 92 is aligned with the side of the upper cover plate 91, ensuring the side alignment of the two. It should be noted that the center line of the lower cover plate 92 is the line connecting the midpoints of its two wide sides, and the extension direction of this center line is the same as the length direction of the lower cover plate 92. Similarly, the center line of the upper cover plate 91 is the line connecting the midpoints of its two wide sides, and the extension direction of this center line is the same as the length direction of the upper cover plate 91.

[0054] Specifically, the structures of the first moving part 11 and the second moving part 12 are completely identical. Both the first moving support 111 and the second moving support 121 are vertically arranged. The centering mechanism 10 also includes a centering drive part 14, which includes a centering cylinder 141, a first rack, a second rack 142, and a gear 143. The centering cylinder 141, the first rack, and the second rack 142 are all horizontally arranged. The centering cylinder 141 is drivenly connected to the first moving support 111, the first rack is connected to the first moving support 111, and the second rack 142 is connected to the second moving support 121. The first rack and the second rack 142 are parallel to each other. The gear 143 is located between the first rack and the second rack 142 and meshes with both the first rack and the second rack 142. The first rack and the second rack 142 are completely identical. When the centering cylinder 141 extends, it causes the first movable support 111 to move horizontally away from the second movable support 121, thereby causing the first rack to move horizontally away from the second movable support 121, which in turn causes the gear 143 to rotate. The gear 143 then causes the second rack 142 to move horizontally away from the first movable support 111, which in turn causes the second movable support 121 to move horizontally away from the first movable support 111. Conversely, when the centering cylinder 141 shortens, it causes the first movable support 111 to move horizontally closer to the second movable support 121, thereby causing the first rack to move horizontally closer to the second movable support 121, which in turn causes the gear 143 to rotate. The gear 143 then causes the second rack 142 to move horizontally closer to the first movable support 111, which in turn causes the second movable support 121 to move horizontally closer to the first movable support 111. By configuring the centering drive unit 14, the first moving support 111 and the second moving support 121 can move synchronously in opposite directions and ensure that the two move at the same speed, thereby ensuring that the first moving unit 11 and the second moving unit 12 can push the lower cover plate 92 and the upper cover plate 91 to the welding position.

[0055] In other embodiments, the first moving part 11 includes a first moving support 111, a first lower centering component 112 and a first upper centering component 113 disposed on the first moving support 111; or, the second moving part 12 includes a second moving support 121, a second lower centering component 122 and a second upper centering component 123 disposed on the second moving support 121. That is, the structures of the first moving part 11 and the second moving part 12 may be different.

[0056] See Figure 3 , Figure 4 , Figure 15 , Figure 18 as well as Figures 21 to 23As shown, in some embodiments of the present invention, the extension length of the first lower centering component 112 toward the centering region is less than the extension length of the first upper centering component 113 toward the centering region; the extension length of the second lower centering component 122 toward the centering region is less than the extension length of the second upper centering component 123 toward the centering region.

[0057] In this embodiment, the distance between the first lower centering component 112 and the second lower centering component 122 is D2, and the distance between the first upper centering component 113 and the second upper centering component 123 is D1. D2 is less than D1. The lower cover plate 92 is first placed in the centering area. Through the movement of the first movable support 111 and the second movable support 121, the first lower centering component 112 and the second lower centering component 122 respectively contact the edge of the lower cover plate 92, and push the lower cover plate 92 to the center position between the first lower centering component 112 and the second lower centering component 122. At this time, the distance between the first lower centering component 112 and the second lower centering component 122 is W2, that is, the width of the lower cover plate 92. Subsequently, the lower cover plate 92 is fixed by the positioning mechanism 20 and no longer moves. After the left web plate 93 and the right web plate 92 are aligned, the lower cover plate 92 is moved. After the web plate 94 and the lower cover plate 92 are spot-welded and fixed, the welding position of the upper cover plate 91 is positioned. The upper cover plate 91 is placed on the left web plate 93 and the right web plate 94. Through the movement of the first movable support 111 and the second movable support 121, the first upper centering component 113 and the second upper centering component 123 respectively contact the edge of the upper cover plate 91 and push the upper cover plate 91 to the center position between the first upper centering component 113 and the second upper centering component 123. At this time, the distance between the first upper centering component 113 and the second upper centering component 123 is W3, which is the width of the upper cover plate 91. At the same time, the first lower centering component 112 and the second lower centering component 122 cannot contact the lower cover plate 92, so they cannot push the lower cover plate 92 again, so that the lower cover plate 92 can always be kept in the center position.

[0058] With the above settings, the first lower alignment component 112 and the second lower alignment component 122 will no longer contact the lower cover plate 92 after aligning it, thus preventing the lower cover plate 92, which is already in the welding position, from being moved away from the welding position. When the first upper alignment component 113 and the second upper alignment component 123 align the upper cover plate 91, the lower cover plate 92, which is fixed in the welding position, can be used as an alignment reference to ensure the alignment accuracy of the upper cover plate 91.

[0059] In other embodiments, the extension length of the first lower centering component 112 toward the centering region is less than the extension length of the first upper centering component 113 toward the centering region, or the extension length of the second lower centering component 122 toward the centering region is less than the extension length of the second upper centering component 123 toward the centering region. As long as the distance between the first lower centering component 112 and the second lower centering component 122 is less than the distance between the first upper centering component 113 and the second upper centering component 123, the centering of the lower cover plate 92 and the upper cover plate 91 can be achieved.

[0060] See Figure 3 , Figure 4 , Figure 15 , Figure 18 as well as Figures 21 to 23 As shown, in some embodiments of the present invention, the first upper centering component 113 is slidably engaged with the first movable support 111, and the first upper centering component 113 has an angle between the moving direction of the first movable support 111 and the moving direction of the first movable support 111 itself; the second upper centering component 123 is slidably engaged with the second movable support 121, and the second upper centering component 123 has an angle between the moving direction of the second movable support 121 and the moving direction of the second movable support 121 itself.

[0061] In this embodiment, the first upper centering component 113 can slide vertically along the first movable support 111 to adjust the distance between the first upper centering component 113 and the first lower centering component 112. Similarly, the second upper centering component 123 can slide vertically along the second movable support 121 to adjust the distance between the second upper centering component 123 and the second lower centering component 122, thereby adjusting the distance between the lower cover plate 92 and the upper cover plate 91. This allows the centering mechanism 10 to center the upper cover plate 91 of the legs 90 of various sizes, making it widely applicable.

[0062] Specifically, the first upper centering assembly 113 includes a first adjusting slider 1131 slidably connected to the first movable support 111 and a first upper bolt 1132 fixed to the first adjusting slider 1131. The sliding direction of the first adjusting slider 1131 along the first movable support 111 is vertical and perpendicular to the moving direction of the first movable support 111 itself. The first adjusting slider 1131 has a threaded hole, and the upper part of the first movable support 111 has multiple threaded holes spaced apart along its length. When the first adjusting slider 1131 slides along the first movable support 111 to the corresponding position, the bolt is inserted into the first movable support. The threaded hole of the first adjusting slider 1131 and the threaded hole of the first adjusting slider 1131 are used to lock the first adjusting slider 1131 onto the first movable support 111. The first upper bolt 1132 protrudes from the first adjusting slider 1131 in the direction toward the centering region. The end face of the first upper bolt 1132 facing the centering region is used to contact the edge of the upper cover plate 91, and this end face of the first upper bolt 1132 is flat to facilitate fitting the edge of the upper cover plate 91. The second upper centering assembly 123 includes the second adjusting slider 1231 slidably connected to the second movable support 121 and the second upper bolt 1231 fixed on the second adjusting slider 1231. 32. The second adjusting slider 1231 slides vertically along the sliding direction of the second movable support 121, perpendicular to the moving direction of the second movable support 121 itself. The second adjusting slider 1231 has threaded holes, and the upper part of the second movable support 121 has multiple threaded holes spaced apart along its length. When the second adjusting slider 1231 slides to the corresponding position along the second movable support 121, it is locked onto the second movable support 121 by inserting bolts into the threaded holes of the second movable support 121 and the threaded holes of the second adjusting slider 1231. The second upper bolt 1232 is aligned with the center. The direction of the area protrudes from the second adjusting slider 1231. The end face of the second upper bolt 1232 facing the centering area is used to contact the edge of the upper cover plate 91, and the end face of the second upper bolt 1232 is flat, which facilitates fitting the edge of the upper cover plate 91. The distance between the first upper bolt 1132 and the second upper bolt 1232 is the distance D1 between the first upper centering component 113 and the second upper centering component 123. When the first upper centering component 113 and the second upper centering component 123 center the upper cover plate 91, the first upper bolt 1132 and the second upper bolt 1232 respectively contact the edges of the opposite sides of the upper cover plate 91.

[0063] The first moving part 11 further includes a first scale 114 fixed on the first moving support 111 and arranged along the extending direction of the first moving support 111, for determining the height of the first upper slider; the second moving part 12 further includes a second scale 124 fixed on the second moving support 121 and arranged along the extending direction of the second moving support 121, for determining the height of the second upper slider, thereby ensuring that the adjustment dimensions between the first upper slider and the second upper slider are the same.

[0064] The first lower alignment assembly 112 includes a first fixing block 1121 fixed to the first movable support 111 and a first lower bolt 1122 fixed to the first fixing block 1121. The first lower bolt 1122 protrudes from the first fixing block 1121 in the direction toward the alignment region. The end face of the first lower bolt 1122 toward the alignment region is used to contact the edge of the lower cover plate 92, and this end face of the first lower bolt 1122 is flat to facilitate fitting the edge of the lower cover plate 92. The second lower alignment assembly 122 includes a second fixing block 1221 fixed to the second movable support 121 and a second lower bolt 1222 fixed to the second fixing block 1221. The lower bolt 1222 protrudes from the second fixing block 1221 in the direction toward the centering area. The end face of the second lower bolt 1222 toward the centering area is used to contact the edge of the lower cover plate 92, and this end face of the second lower bolt 1222 is flat, which facilitates fitting the edge of the lower cover plate 92. The distance between the first lower bolt 1122 and the second lower bolt 1222 is the distance D2 between the first lower centering assembly 112 and the second lower centering assembly 122. When the first lower centering assembly 1122 and the second lower centering assembly 122 center the lower cover plate 92, the first lower bolt 1122 and the second lower bolt 1222 respectively contact the edges of the opposite sides of the lower cover plate 92.

[0065] In other embodiments, the first upper centering component 113 is slidably engaged with the first movable support 111, or the second upper centering component 123 is slidably engaged with the second movable support 121, as long as the first upper centering component 113 and the second upper centering component 123 can be centered on the upper cover plate 91 of the support leg 90 of different sizes.

[0066] See Figure 3 , Figure 4 , Figure 15 , Figure 18 as well as Figures 21 to 23 As shown, in some embodiments of the present invention, the centering mechanism 10 further includes a support member 13, which is located between the first moving part 11 and the second moving part 12. The support member 13 can contact the lower cover plate 92 to support the lower cover plate 92.

[0067] In this embodiment, when the lower cover plate 92 is placed in the centering area, the support member 13 is located below the lower cover plate 92 and provides support for the lower cover plate 92. When the first moving part 11 and the second moving part 12 center the lower cover plate 92, they push the lower cover plate 92 on the support member 13 to the centering welding position.

[0068] By setting the support member 13, on the one hand, the lower cover plate 92 can be raised so that the first lower bolt 1122 and the second lower bolt 1222 can smoothly contact the edge of the lower cover plate 92 to center the lower cover plate 92; on the other hand, the friction of the lower surface of the lower cover plate 92 during the movement is reduced, so that the movement of the lower cover plate 92 is smoother and the centering is more accurate.

[0069] Specifically, the support member 13 includes four support blocks, with each pair of support blocks forming a group. One group of support blocks is located on one side of the first moving part 11 and the second moving part 12, while the other group of support blocks is located on the other side of the first moving part 11 and the second moving part 12. The two support blocks in each group are located on the same straight line, and the four support blocks in the two groups are arranged facing each other. The surface of the support block facing the centering area, i.e., the upper surface of the support block, is used to support the lower cover plate 92. The upper surface of the support block is lower than the lowest point of the first lower bolt 1122 and the lowest point of the second lower bolt 1222, so as to prevent the support block from raising the lower cover plate 92 higher than the first lower bolt 1122 and the second lower bolt 1222, thereby preventing the first lower bolt 1122 and the second lower bolt 1222 from being unable to center the lower cover plate 92.

[0070] The centering mechanism 10 also includes a centering base 15. The first moving part 11, the second moving part 12 and the support member 13 are all disposed on the centering base 15. The centering drive part 14 is disposed inside the centering base 15. A telescopic plate is provided between the first moving part 11 and the second moving part 12 to improve the stability of the first moving part 11 and the second moving part 12 during the movement process.

[0071] See Figures 5 to 13 , Figure 16 , Figure 17 , Figure 19 as well as Figures 21 to 23 As shown, in some embodiments of the present invention, the positioning mechanism 20 includes a first positioning part 21 and a second positioning part 22, which form a positioning area. The first positioning part 21 and the second positioning part 22 are configured to move synchronously in directions that are closer to each other or further away from each other, so as to shrink or expand the positioning area. The moving direction of the first positioning part 21 is the same as the moving direction of the first moving part 11, and the moving direction of the second positioning part 22 is the same as the moving direction of the second moving part 12.

[0072] In this embodiment, after the centering mechanism 10 centers the lower cover plate 92, the first positioning part 21 and the second positioning part 22 move towards each other until the distance between them is equal to the distance W1 between the left web plate 93 and the right web plate 94, the thickness of the left web plate 93 and the thickness of the right web plate 94. Then the lower cover plate 92 is fixed, the left web plate 93 is fixed on the first positioning part 21, and the right web plate 94 is fixed on the second positioning part 22. At this time, the distance between the left web plate 93 and the right web plate 94 is W1.

[0073] Specifically, the first positioning part 21 and the second positioning part 22 are symmetrically arranged.

[0074] By synchronously moving the first positioning part 21 and the second positioning part 22, the lower cover plate 92, the upper cover plate 91, the left web plate 93 and the right web plate 94 can always be located in the center of the first positioning part 21 and the second positioning part 22, so as to avoid the first positioning part 21 and the second positioning part 22 pushing the upper cover plate 91 and the lower cover plate 92 that have been aligned during the movement, thereby ensuring the alignment accuracy of the lower cover plate 92 and the upper cover plate 91.

[0075] See Figures 5 to 13 , Figure 16 , Figure 17 , Figure 19 as well as Figures 21 to 23 As shown, in some embodiments of the present invention, the first positioning part 21 includes a first positioning support 211 and a first lower positioning component 212, a first middle positioning component 213, and a first upper positioning component 214 disposed on the first positioning support 211. The first lower positioning component 212 can clamp the lower cover plate 92 to fix the lower cover plate 92. The first middle positioning component 213 can adsorb the left web plate 93 to fix the left web plate 93 to the welding position. The first upper positioning component 214 can press the upper cover plate 91 and fix it to the left web plate 93 and the welding position. On the right web 94; the second positioning part 22 includes a second positioning support 221 and a second lower positioning component 222, a second middle positioning component 223 and a second upper positioning component 224 disposed on the second positioning support 221. The second lower positioning component 222 can clamp the lower cover plate 92 to fix the lower cover plate 92. The second middle positioning component 223 can adsorb the right web 94 to fix the right web 94 to the welding position. The second upper positioning component 224 can press the upper cover plate 91 and fix it to the left web 93 and the right web 94.

[0076] In this embodiment, after the centering mechanism 10 centers the lower cover plate 92, the first positioning support 211 and the second positioning support 221 move towards each other until the first lower positioning component 212 and the second lower positioning component 222 simultaneously contact the lower cover plate 92. The lower cover plate 92 is then fixed by clamping, resulting in a more secure fixation and preventing the lower cover plate 92 from being moved under force during subsequent spot welding. Both the first middle positioning component 213 and the second middle positioning component 223 have adsorption surfaces, which face each other and are aligned with the lower cover plate 92. With the cover plate 92 vertical, after the first positioning component 213 adsorbs and fixes the left web plate 93, the left web plate 93 is parallel to the adsorption surface of the first positioning component 213, and the left web plate 93 is perpendicular to the lower cover plate 92. After the second positioning component 223 adsorbs and fixes the right web plate 94, the right web plate 94 is parallel to the adsorption surface of the second positioning component 223, and the right web plate 94 is perpendicular to the lower cover plate 92. The adsorption method makes the fixation of the left web plate 93 to the first positioning component 213 faster and ensures that the left web plate 93 is parallel to the adsorption surface of the first positioning component 213. This allows for faster fixing of the right web plate 94 to the second positioning component 223, and ensures that the adsorption surfaces of the right web plate 94 and the second positioning component 223 are parallel. This guarantees the perpendicularity of both the left and right web plates 93 and 94 to the lower cover plate 92, and improves assembly efficiency. Since the left and right web plates 93 and 94 are already assembled, the upper cover plate 91 can be directly placed on the left and right web plates 93 and 94, and the upper cover plate 91 is fixed by pressing with the first upper positioning component 214 and the second upper positioning component 224. The upper cover plate 91 is fixed to the left web plate 93 and the right web plate 94. Since the left web plate 93 and the right web plate 94 are already spot-welded to the lower cover plate 92, the pressing and fixing of the upper cover plate 91 will not change the welding position of the left web plate 93 and the right web plate 94. In addition, since the left web plate 93 and the right web plate 94 are both located below the upper cover plate 91, the space below the upper cover plate 91 is insufficient. Therefore, the first upper positioning component 214 and the second upper positioning component 224 act on the upper surface of the upper cover plate 91 by pressing, that is, they are located above the upper cover plate 91, and the working space is large enough. The structure of the first positioning part 21 and the structure of the second positioning part 22 are exactly the same.

[0077] Specifically, the positioning mechanism 20 also includes a positioning drive unit 23, which includes a first lead screw 232, a first nut 236, a positioning motor 235, a first positioning slider 231, a positioning slide rail 238, a second lead screw 234, a second nut 237, and a second positioning slider 233. The first lead screw 232, the second lead screw 234, and the positioning slide rail 238 are all horizontally arranged. The axial direction of the first lead screw 232 is the same as the moving direction of the first positioning support 211. The first nut 236 is fixedly connected to the first positioning support 211 and threadedly connected to the first lead screw 232. When the first lead screw 232 rotates, it drives the first nut 236 to move along the axial direction of the first lead screw 232, thereby driving the first positioning support 211 to move. The positioning motor 235 is driven by the first lead screw 232. The extension direction of the positioning slide rail 238 is the same as the moving direction of the first positioning support 211. The first positioning slider 231 is fixedly connected to the first positioning support 211 and slidably connected to the positioning slide rail 238. During the movement of the first positioning support 211, the first positioning slider 231 slides along the positioning slide rail 238. The first positioning slider 231 and the positioning slide rail 238 cooperate to play a guiding role and limit the movement path of the first positioning support 211. The axial direction of the second lead screw 234 is the same as the moving direction of the second positioning support 221. The second nut 237 is fixedly connected to the second positioning support 221 and threadedly connected to the second lead screw 234. Rotation of the second lead screw 234 causes the second nut 237 to move along its axial direction, thereby moving the second positioning support 221. The positioning motor 235 is driven by the second lead screw 234. The extending direction of the positioning slide rail 238 is also the same as the moving direction of the second positioning support 221. The second positioning slider 233 is slidably connected to the positioning slide rail 238. During the movement of the second positioning support 221, the second positioning slider 233 slides along the positioning slide rail 238. The cooperation between the second positioning slider 233 and the positioning slide rail 238 serves as a guide, limiting the movement path of the second positioning support 221. The positioning motor 235 can be a motor or a combination of a motor and a reducer.

[0078] The thread engagement direction of the first lead screw 232 and the first nut 236 is opposite to that of the thread engagement direction of the second lead screw 234 and the second nut 237. When the first lead screw 232 and the second lead screw 234 rotate in the same direction, the first nut 236 and the second nut 237 move towards or away from each other. This allows the same positioning motor 235 to simultaneously drive the first nut 236 and the second nut 237 to move in opposite directions, ensuring the synchronization of the movement of the first positioning support 211 and the second positioning support 221 and making their movement speed exactly the same. This, in turn, ensures that the upper cover plate 91, the lower cover plate 92, the left web plate 93, and the right web plate 94 are always located in the center position of the first positioning support 211 and the second positioning support 221.

[0079] In other embodiments, the first positioning part 21 includes a first positioning support 211 and a first lower positioning component 212, a first middle positioning component 213, and a first upper positioning component 214 disposed on the first positioning support 211; or, the second positioning part 22 includes a second positioning support 221 and a second lower positioning component 222, a second middle positioning component 223, and a second upper positioning component 224 disposed on the second positioning support 221. That is, the structures of the first positioning part 21 and the second positioning part 22 may be different.

[0080] See Figures 5 to 13 , Figure 16 , Figure 17 , Figure 19 as well as Figures 21 to 23 As shown, in some embodiments of the present invention, the first lower positioning component 212 is located within the positioning area. The first lower positioning component 212 includes a first support block 2121 and a first clamping member 2122 disposed above the first support block 2121. A first clamping area for clamping the lower cover plate 92 can be formed between the first support block 2121 and the first clamping member 2122. The first clamping member 2122 is movably engaged with the first positioning support 211. The first clamping member 2122 can move relative to the first support block 2121 to expand or shrink. The first clamping area; the second lower positioning component 222 is located within the positioning area. The second lower positioning component 222 includes a second support block 2221 and a second clamping member 2222 disposed above the second support block 2221. A second clamping area for clamping the lower cover plate 92 can be formed between the second support block 2221 and the second clamping member 2222. The second clamping member 2222 is movably engaged with the second positioning support 221. The second clamping member 2222 can move relative to the second support block 2221 to expand or shrink the second clamping area.

[0081] In this embodiment, before and during the alignment of the lower cover plate 92, no first clamping area is formed between the first clamping member 2122 and the first support block 2121, and no second clamping area is formed between the second clamping member 2222 and the second support block 2221. After the lower cover plate 92 is aligned to the welding position, it is clamped and fixed at the welding position through the cooperation between the first support block 2121 and the first clamping member 2122, as well as the second support block 2221 and the second clamping member 2222. One side of the lower cover plate 92 is located in the first clamping area, and the other side is located in the second clamping area. The surfaces of the first support block 2121 facing the first clamping area and the second support block 2221 facing the second clamping area, i.e., the edges of the upper surfaces of the first support block 2121 and the second support block 2221, are both inclined surfaces. After the centering mechanism 10 centers the lower cover plate 92 and during the movement of the first positioning support 211 and the second positioning support 221 towards each other, the inclined surfaces of the first support block 2121 and the second support block 2221 first contact the lower surface of the lower cover plate 92. This allows the lower cover plate 92 to gradually transition to the support surfaces of the first support block 2121 and the second support block 2221, and also prevents damage to the lower cover plate 92 from sharp edges. The first support block 2121 and the second support block 2221 are designed to prevent the lower cover plate 92 from being deformed by the first clamping member 2122 and the second clamping member 2222.

[0082] Specifically, the surfaces of the first support block 2121 and the second support block 2221 facing the positioning area are flush with the upper surface of the support member 13. When the lower cover plate 92 is supported by the support member 13, the lower cover plate 92 can also be supported by the first support block 2121 and the second support block 2221. When the first clamping member 2122 and the second clamping member 2222 are used to clamp the lower cover plate 92, the position of the lower cover plate 92 in the vertical direction will not be changed, thus ensuring the assembly accuracy of the lower cover plate 92.

[0083] The first clamping member 2122 is rotatably connected to the first movable support 111, and the first clamping member 2122 is driven by a drive cylinder for driving the first clamping member 2122 to move vertically, that is, the first clamping member 2122 moves vertically toward or away from the first support block 2121; the second clamping member 2222 is rotatably connected to the second movable support 121, and the second clamping member 2222 is driven by a drive cylinder for driving the second clamping member 2222 to move vertically, that is, the second clamping member 2222 moves vertically toward or away from the second support block 2221. Before and during the alignment of the lower cover plate 92, the first clamping member 2122 is rotated away from the first support block 2121 to prevent it from occupying the space above the first support block 2121. Simultaneously, the second clamping member 2222 is rotated away from the second support block 2221 to prevent it from occupying the space above the second support block 2221, facilitating the insertion of the lower cover plate 92. After the lower cover plate 92 is aligned to the welding position, the first clamping member 2122 is rotated towards the first support block 2121 until the first clamping member 2122... Located directly above the first support block 2121, the second clamping member 2222 is rotated towards the second support block 2221 until it is directly above it. Then, the drive cylinder corresponding to the first clamping member 2122 is operated to move it towards the first support block 2121, and simultaneously, the drive cylinder corresponding to the second clamping member 2222 moves it towards the second support block 2221, until the lower cover plate 92 is fixed within the first and second clamping areas. The rotation of the first and second clamping members 2122 is achieved through drive components such as a motor.

[0084] The first lower positioning assembly 212 further includes a first clamping bolt 2123 fixed on the first clamping member 2122. The first clamping bolt 2123 protrudes from the first clamping member 2122 in the direction of the first clamping area. The end face of the first clamping bolt 2123 facing the first clamping area is used to contact the upper surface of the lower cover plate 92, and the end face of the first clamping bolt 2123 is flat, which facilitates fitting the upper surface of the lower cover plate 92. The second lower positioning assembly 222 further includes a second clamping bolt 2223 fixed on the second clamping member 2222. The second clamping bolt 2223 protrudes from the second clamping member 2222 in the direction of the second clamping area. The end face of the second clamping bolt 2223 facing the second clamping area is used to contact the upper surface of the lower cover plate 92, and the end face of the second clamping bolt 2223 is flat, which facilitates fitting the upper surface of the lower cover plate 92.

[0085] In some other embodiments, the first lower positioning component 212 includes a first support block 2121 and a first clamping member 2122 disposed above the first support block 2121; or, the second lower positioning component 222 includes a second support block 2221 and a second clamping member 2222 disposed above the second support block 2221. That is, the structures of the first lower positioning component 212 and the second lower positioning component 222 may be different.

[0086] See Figures 5 to 13 , Figure 16 , Figure 17 , Figure 19 as well as Figures 21 to 23 As shown, in some embodiments of the present invention, the first positioning component 213 is located within the positioning area, and the minimum distance between the first positioning component 213 and the second positioning part 22 can be adjusted to be equal to the welding distance between the left web plate 93 and the right web plate 94. The first positioning component 213 includes a first positioning block 2131 and a first electromagnet 2132 disposed on the first positioning block 2131. The first electromagnet 2132 can attract the left web plate 93 to fix the left web plate 93 to the welding position and make the left web plate 93 perpendicular. The lower cover plate 92; the second positioning component 223 is located in the positioning area. The minimum distance between the second positioning component 223 and the first positioning part 21 can be adjusted to be equal to the welding distance between the left web plate 93 and the right web plate 94. The second positioning component 223 includes a second positioning block 2231 and a second electromagnet 2232 disposed on the second positioning block 2231. The second electromagnet 2232 can attract the right web plate 94 to fix the right web plate 94 to the welding position and make the right web plate 94 perpendicular to the lower cover plate 92.

[0087] In this embodiment, the adsorption surface of the first electromagnet 2132 is perpendicular to both the support surfaces of the first support block 2121 and the second support block 2221. Similarly, the adsorption surface of the second electromagnet 2232 is also perpendicular to both the support surfaces of the first and second support blocks 2121 and 2221. When the first electromagnet 2132 adsorbs the left web plate 93, the left web plate 93 is parallel to the adsorption surface of the first electromagnet 2132 and perpendicular to the lower cover plate 92. When the second electromagnet 2232 adsorbs the right web plate 93... At time 4, the right web plate 94 is parallel to the adsorption surface of the second electromagnet 2232 and perpendicular to the lower cover plate 92. By setting the adsorption surfaces of the first electromagnet 2132 and the second electromagnet 2232, as long as the left web plate 93 is fixedly adsorbed to the first electromagnet 2132 and the right web plate 94 is fixedly adsorbed to the second electromagnet 2232, it can be ensured that the left web plate 93 and the right web plate 94 are perpendicular to the lower cover plate 92. There is no need to adjust the perpendicularity of the left web plate 93 and the right web plate 94, thus improving the assembly efficiency.

[0088] Specifically, the first positioning component 213 further includes two first abutting blocks 2133 fixed on the first positioning block 2131. These first abutting blocks 2133 are located above and below the first electromagnet 2132, respectively. The first abutting blocks 2133 protrude from the first electromagnet 2132 in the direction of the positioning area, and the length of the protrusion is D3. When the first electromagnet 2132 attracts the left web plate 93, the left web plate 93 and the first positioning block 2132... A bonding block 2133 contacts and maintains a distance of dimension D3 from the first electromagnet 2132, ensuring that the first electromagnet 2132 can stably attract the left web plate 93 while the left web plate 93 can move relative to the first electromagnet 2132 on the first bonding block 2133, which facilitates the positioning and adjustment of the left web plate 93. The side of the first bonding block 2133 facing the positioning area is parallel to the attraction surface of the first electromagnet 2132, and this side of the first bonding block 2133 is a plane, which facilitates the bonding of the left web plate 93. The second positioning component 223 also includes two second bonding blocks 2233 fixed to the second positioning block 2231. These two bonding blocks 2233 are located above and below the second electromagnet 2232, respectively. The second bonding blocks 2233 protrude from the second electromagnet 2232 in the direction of the positioning area, and the length of the protrusion is also D3. When the second electromagnet 2232 attracts the right web plate 94, the right web plate 94 and the second bonding block 2233... The second bonding block 2233 contacts the second electromagnet 2232 and maintains a distance of D3, ensuring that the second electromagnet 2232 can stably attract the right web plate 94 while the right web plate 94 can move relative to the second electromagnet 2232 on the second bonding block 2233, facilitating the positioning adjustment of the right web plate 94. The side of the second bonding block 2233 facing the positioning area is parallel to the attraction surface of the second electromagnet 2232, and this side of the second bonding block 2233 is flat, facilitating the adhesion of the right web plate 94. D3 is less than 2mm. When the first positioning support 211 and the second positioning support 221 move towards each other to the positioning position, the distance between the first bonding block 2133 and the second bonding block 2233 is the sum of W1, the thickness of the left web plate 93, and the thickness of the right web plate 94. W1 is the distance between the left web plate 93 and the right web plate 94 after the box is assembled.

[0089] The first positioning component 213 also includes a first operating button 2134 for adjusting the attraction force of the first electromagnet 2132. The first operating button 2134 is fixed on the first positioning support 211 and can control the amount of electricity supplied to the first electromagnet 2132 to adjust the attraction force of the first electromagnet 2132, making it suitable for different types of left web plates 93 and having a wide range of applications. In addition, when the first electromagnet 2132 needs to attract the left web plate 93, the first operating button 2134 is operated. 4. Energize the first electromagnet 2132 to enable it to have a magnetic attraction function. When the left web plate 93 needs to be adjusted, operate the first operating button 2134 to de-energize the first electromagnet 2132 or reduce its attraction force, making it easier to adjust the left web plate 93. When the first electromagnet 2132 does not need to attract the left web plate 93, operate the first operating button 2134 to de-energize the first electromagnet 2132, so that it does not have a magnetic attraction function, thus saving energy. The second positioning component 223 also includes a second operating button 2234 for adjusting the attraction force of the second electromagnet 2232. The second operating button 2234 is fixed on the second positioning support 221 and can control the amount of electricity supplied to the second electromagnet 2232 to adjust the attraction force of the second electromagnet 2232, making it suitable for different types of right web plates 94 and having a wide range of applications. In addition, when the second electromagnet 2232 needs to attract the right web plate 94, the second operating button 2234 is operated. 4. Energize the second electromagnet 2232 to enable its magnetic attraction function. When the right web plate 94 needs to be adjusted, operate the second operating button 2234 to de-energize the second electromagnet 2232 or reduce the attraction force of the first electromagnet 2132, facilitating the adjustment of the right web plate 94. When the second electromagnet 2232 does not need to attract the right web plate 94, operate the second operating button 2234 to de-energize the second electromagnet 2232, so that the second electromagnet 2232 does not have its magnetic attraction function, thus saving energy.

[0090] In some other embodiments, the first positioning component 213 includes a first positioning block 2131 and a first electromagnet 2132 disposed on the first positioning block 2131, or the second positioning component 223 includes a second positioning block 2231 and a second electromagnet 2232 disposed on the second positioning block 2231. That is to say, the structures of the first positioning component 213 and the second positioning component 223 may be different.

[0091] See Figures 5 to 13 , Figure 16 , Figure 17 , Figure 19 as well as Figures 21 to 23As shown, in some embodiments of the present invention, the first upper positioning component 214 includes a first clamping member 2141 that is movably engaged with the first positioning support 211. The first clamping member 2141 is movable relative to the first positioning support 211 in a direction toward or away from the first middle positioning component 213 to clamp or release the upper cover plate 91. The second upper positioning component 224 includes a second clamping member 2241 that is movably engaged with the second positioning support 221. The second clamping member 2241 is movable relative to the second positioning support 221 in a direction toward or away from the second middle positioning component 223 to clamp or release the upper cover plate 91.

[0092] In this embodiment, the pressing surface of the first pressing member 2141 is parallel to the supporting surfaces of the first supporting block 2121 and the second supporting block 2221. The pressing surface of the second pressing member 2241 is also parallel to the supporting surfaces of the first supporting block 2121 and the second supporting block 2221. When the upper cover plate 91 is placed on the left web plate 93 and the right web plate 94, the upper cover plate 91 is parallel to the pressing surfaces of the first pressing member 2141 and the second pressing member 2241, making the upper cover plate 91 parallel to the lower cover plate 92. By setting the pressing surfaces of the first pressing member 2141 and the second pressing member 2241, as long as the upper cover plate 91 is pressed and fixed by the first pressing member 2141 and the second pressing member 2241, it can be ensured that the upper cover plate 91 is parallel to the lower cover plate 92, thereby ensuring that the upper cover plate 91 is perpendicular to the left web plate 93 and the right web plate 94, improving assembly efficiency. In addition, since the upper cover plate 91 is the last plate to be assembled, it needs to be placed above the left web plate 93 and the right web plate 94, so that the space below the upper cover plate 91 is occupied by the left web plate 93 and the right web plate 94. Therefore, the first clamping member 2141 and the second clamping member 2241 are arranged above the upper cover plate 91 to make use of the sufficient space above the upper cover plate 91 and avoid interference between the first clamping member 2141 and the second clamping member 2241 and other components.

[0093] Specifically, the first upper positioning assembly 214 further includes a first connecting rod 2142, a first movable rod 2143, a first mounting sleeve 2144, a first linkage shaft 2145, a first drive cylinder 2148, a first guide post 2147, and a first housing 2146. The first clamping member 2141, the first connecting rod 2142, and the first movable rod 2143 are connected sequentially. The first clamping member 2141 and the first movable rod 2143 are both vertically arranged, while the first connecting rod 2142 is horizontally arranged. A mounting sleeve 2144 has a first mounting through hole along its axial direction. The lower part of the first movable rod 2143 passes through the first mounting through hole and slides with the first mounting sleeve 2144. The outer wall of the first mounting sleeve 2144 has a first spiral groove 21441 along its circumference and a first straight groove 21442 along its axial direction. The first spiral groove 21441 and the first straight groove 21442 communicate with each other and both communicate with the first mounting through hole. The first linkage shaft 2145 runs along the first mounting sleeve 2144. The radial direction of the first linkage shaft 21441 passes through the first spiral groove 21441 and the first mounting through hole, and slides with the first mounting sleeve 2144. The first linkage shaft 2145 can move along the first spiral groove 21441 and the first straight groove 24112. The first linkage shaft 2145 also passes through the first movable rod 2143 and is fixedly connected to the first movable rod 2143. Both ends of the first linkage shaft 2145 protrude from the first mounting sleeve 2144 along the radial direction of the first mounting sleeve 2144. The first drive cylinder 2148 is drivenly connected to the first movable rod 2143 to drive the first movable rod 2143 to move in the vertical direction. The guiding direction of the first guide post 2147 is the same as the moving direction of the first movable rod 2143, and is used to limit the moving path of the first movable rod 2143. The first housing 2146 is connected to the first positioning support 211. The first mounting sleeve 2144, the first linkage shaft 2145, the first guide post 2147 and the first drive cylinder 2148 are all located inside the first housing 2146.The second upper positioning assembly 224 also includes a second connecting rod 2242, a second movable rod 2243, a second mounting sleeve 2244, a second linkage shaft 2245, a second drive cylinder 2248, a second guide post 2247, and a second outer shell 2246. The second clamping member 2241, the second connecting rod 2242, and the second movable rod 2243 are connected sequentially. Both the second clamping member 2241 and the second movable rod 2243 are vertically arranged, while the second connecting rod 2242 is horizontally arranged. The second mounting sleeve 2244 has a second mounting through hole along its axial direction. The lower part of the second movable rod 2243 passes through the second mounting through hole and slides in cooperation with the second mounting sleeve 2244. The outer wall of the second mounting sleeve 2244 has a second spiral groove 22441 along its circumference and a second straight groove 22442 along its axial direction. The second spiral groove 22441 communicates with the second straight groove 22442, and both communicate with the second mounting through hole. The second linkage shaft 2245 runs along the second mounting sleeve 2244. The radial direction of the second linkage shaft 2245 passes through the second spiral groove 22441 and the second mounting through hole, and slides with the second mounting sleeve 2244. The second linkage shaft 2245 can move along the second spiral groove 22441 and the second straight groove 22442. The second linkage shaft 2245 also passes through the second movable rod 2243 and is fixedly connected to the second movable rod 2243. Both ends of the second linkage shaft 2245 protrude from the second mounting sleeve 2244 along the radial direction of the second mounting sleeve 2244. The second drive cylinder 2248 is drivenly connected to the second movable rod 2243 to drive the second movable rod 2243 to move in the vertical direction. The guiding direction of the second guide post 2247 is the same as the moving direction of the second movable rod 2243, and is used to limit the moving path of the second movable rod 2243. The second housing 2246 is connected to the second positioning support 221. The second mounting sleeve 2244, the second linkage shaft 2245, the second guide post 2247 and the second drive cylinder 2248 are all located inside the second housing 2246.

[0094] When the upper cover plate 91 is placed on the left web plate 93 and the right web plate 94, and after being aligned by the centering mechanism 10, the first drive cylinder 2148 drives the first movable rod 2143 to move downward in the vertical direction, causing the first linkage shaft 2145 to move along the first spiral groove 21441. This, in turn, causes the first clamping member 2141 to rotate circumferentially around the first mounting sleeve 2144 via the first connecting rod 2142. When the first linkage shaft 2145 moves to the connection point between the first spiral groove 21441 and the first straight groove 21442, the first clamping member 2141 is positioned directly above the upper cover plate 91. Simultaneously with the activation of the first drive cylinder 2148, the second drive cylinder 2248 drives the second movable rod 2243 to move downward in the vertical direction, causing the second linkage shaft 2245 to move along the second spiral groove 22441. This, in turn, causes the second clamping member 2241 to rotate circumferentially around the second mounting sleeve 2244 via the second connecting rod 2242. When the second linkage shaft 2245 moves to the connection node between the second spiral groove 22441 and the second straight groove 22442, the second clamping member 2241 is located directly above the upper cover plate 91. At this time, the first drive cylinder 2148 continues to drive the first movable rod 2143 to move downward in the vertical direction, driving the first linkage shaft 2145 to move along the first straight groove 21442, and then driving the first clamping member 2141 to move downward vertically through the first connecting rod 2142. At the same time, the second drive cylinder 2248 continues to drive the second movable rod 2243 to move downward in the vertical direction, driving the second linkage shaft 2245 to move along the second straight groove 22442, and then driving the second clamping member 2241 to move downward vertically through the second connecting rod 2242, until the first clamping member 2141 and the second clamping member 2241 simultaneously press the upper cover plate 91 onto the left web plate 93 and the right web plate 94.

[0095] Through the structural arrangement of the first upper positioning component 214 and the second upper positioning component 224, on the one hand, when it is not necessary to fix the upper cover plate 91, the first clamping member 2141 and the second clamping member 2241 can rotate away from the positioning area, providing sufficient space for the placement of the upper cover plate 91; on the other hand, through the cooperation of the spiral groove, the straight groove and the linkage shaft, it is possible to drive the rotation and movement of the clamping member simply by driving the movable rod to move in the vertical direction, which is convenient to operate. Therefore, only one driving component, the drive cylinder, is needed to drive the rotation and movement of the clamping member, reducing the number of components used and saving costs.

[0096] The positioning mechanism 20 also includes a positioning base 24, on which the first positioning part 21 and the second positioning part 22 are both disposed. The positioning drive part 23 is disposed inside the positioning base 24. A telescopic plate is provided between the first positioning part 21 and the second positioning part 22 to improve the stability of the first positioning part 21 and the second positioning part 22 during movement.

[0097] See Figure 1 , Figure 2 , Figure 14 and Figure 20 As shown, in some embodiments of the present invention, the assembly device further includes a base platform 30, on which a plurality of centering mechanisms 10 and a plurality of positioning mechanisms 20 are provided. At least one centering mechanism 10 and at least one positioning mechanism 20 are slidably engaged with the base platform 30. The sliding direction of the centering mechanism 10 and the positioning mechanism 20 relative to the base platform 30 has an angle with the moving direction of the first moving part 11 and the second moving part 12.

[0098] In this embodiment, the base platform 30 is used to integrate multiple centering mechanisms 10 and multiple positioning mechanisms 20. The multiple centering mechanisms 10 and multiple positioning mechanisms 20 are arranged at intervals along the length direction of the base platform 30 to adapt to the length of the support leg box, ensuring that the support leg box can be stably fixed in the centering area and the positioning area. In addition, the multiple centering mechanisms 10 can ensure the centering accuracy of the upper cover plate 91 and the lower cover plate 92.

[0099] Specifically, there are three positioning mechanisms 20 and two centering mechanisms 10. One positioning mechanism 20 and one centering mechanism 10 form the first group of mechanisms, one positioning mechanism 20 forms the second group of mechanisms, and the other positioning mechanism 20 and the other centering mechanism 10 form the third group of mechanisms. The three groups of mechanisms are arranged sequentially and at intervals along the length of the base platform 30. The first group of mechanisms and the second group of mechanisms are both slidably engaged with the base platform 30. The first group of mechanisms and the third group of mechanisms can both move in the horizontal direction to adapt to different models of outriggers 90, and have a wide range of applications. The movement direction of the first group of mechanisms and the third group of mechanisms is perpendicular to the movement direction of the first moving part 11 and the second moving part 12 and the movement direction of the first positioning part 21 and the second positioning part 22 on the horizontal plane.

[0100] The base platform 30 is equipped with a first guide slider 31, a first guide rail 32, a first pin 33, a second guide slider 34, a second guide rail 35, and a second pin 36. The first guide slider 31 is fixedly connected to the first group of mechanisms and slidably connected to the first guide rail 32. The first guide rail 32 is horizontally set. After the first group of mechanisms moves to the corresponding position, it is fixed by the first pin 33. The movement of the first group of mechanisms is achieved manually by the operator. The second guide slider 34 is fixedly connected to the second group of mechanisms and slidably connected to the second guide rail 35. The second guide rail 35 is horizontally set. After the second group of mechanisms moves to the corresponding position, it is fixed by the second pin 36. The movement of the second group of mechanisms is achieved manually by the operator. An operating table 37 is also fixed on the base platform 30. The operating table 37 is equipped with operating buttons for controlling the movement of all machine-driven moving parts. The operation is simple and can realize automated box assembly operations.

[0101] The present invention also provides a method for assembling boxes, comprising the following steps:

[0102] S1: Select sheet material;

[0103] S2: Cut the sheet material;

[0104] S3: Level the sheet material to obtain the upper cover plate 91, lower cover plate 92, left web plate 93 and right web plate 94;

[0105] S4: Mill the edges of the upper cover plate 91 and the lower cover plate 92;

[0106] S5: Using the above-mentioned assembly device, assemble the upper cover plate 91, lower cover plate 92, left web plate 93 and right web plate 94 to obtain the support leg box.

[0107] In this embodiment, after the upper cover plate 91, lower cover plate 92, left web plate 93, and right web plate 94 are assembled using the assembly device, the centers of the upper cover plate 91 and lower cover plate 92 remain aligned, achieving assembly accuracy and ensuring the positioning dimensions of the support leg housing. This eliminates the need for further processing of the sides of the upper cover plate 91 and lower cover plate 92 of the support leg housing, thus eliminating the prior art's process of processing the sides of the assembled support leg housing. This simplifies the support leg manufacturing process, reduces assembly time, improves assembly efficiency, and lowers production costs.

[0108] Specifically, step S2 involves using CNC cutting to cut the sheet metal into shape. The sheet metal used to make the upper cover plate 91 and the lower cover plate 92 has a machining allowance of 3mm on each long straight edge. After cutting, the width of the sheet metal used to make the upper cover plate 91 is approximately 6mm wider than the corresponding width of the upper cover plate 91 in the drawing. The width of the sheet metal used to make the lower cover plate 92 is approximately 6mm wider than the corresponding width of the lower cover plate 92 in the drawing. That is, the width of the upper cover plate 91 after cutting is (W2+6)mm and the width of the lower cover plate 92 is (W3+6)mm.

[0109] Step S3 specifically involves leveling the sheet metal to ensure its flatness is ≤1mm, resulting in the upper cover plate 91, lower cover plate 92, left web plate 93, and right web plate 94.

[0110] Step S4 specifically involves using a milling machine to mill the edges of the upper cover plate 91 and the lower cover plate 92, ensuring that the width of the upper cover plate 91 is W2 and the width of the lower cover plate 92 is W3, and ensuring the straightness of the two long straight edges of the upper cover plate 91 and the lower cover plate 92.

[0111] Step S5 is as follows:

[0112] S501: Operate the first moving part 11 and the second moving part 12 to move away from each other to the maximum extent, and operate the first positioning part 21 and the second positioning part 22 to move away from each other to the maximum extent;

[0113] S502: Place the lower cover plate 92 on the support member 13, and operate the first moving part 11 and the second moving part 12 to move towards each other until the first lower bolt 1122 and the second lower bolt 1222 are in contact with the edge of the lower cover plate 92.

[0114] S503: Move the first positioning part 21 and the second positioning part 22 toward each other until the lower surface of the lower cover plate 92 contacts the first support block 2121 and the second support block 2221. Rotate the first clamping member 2122 90° toward the first support block 2121 until the first clamping member 2122 is directly above the lower cover plate 92. At the same time, rotate the second clamping member 2222 90° toward the second support block 2221 until the second clamping member 2222 is directly above the lower cover plate 92. Move the first clamping member 2122 and the second clamping member 2222 toward the lower cover plate 92 until the lower cover plate 92 is clamped and fixed.

[0115] S504: By using the first operating button 2134, the first electromagnet 2132 is made to have a suitable attraction force, the left web plate 93 is attracted to the first electromagnet 2132, and the relative position of the left web plate 93 and the lower cover plate 92 is adjusted. During the adjustment process, the first operating button 2134 is used to make the first electromagnet 2132 not have an attraction force or to reduce the attraction force of the first electromagnet 2132.

[0116] S505: By using the second operating button 2234, the second electromagnet 2232 is made to have a suitable attraction force, the right web plate 94 is attracted to the second electromagnet 2232, and the relative position of the right web plate 94 and the lower cover plate 92 is adjusted. During the adjustment process, the second operating button 2234 is used to make the second electromagnet 2232 lose its attraction force or reduce the attraction force of the second electromagnet 2232.

[0117] S506: Use a laser rangefinder to detect the distance between the left web plate 93 and the right web plate 94. After confirming that there is no error, spot weld the left web plate 93 and the right web plate 94 to the lower cover plate 92.

[0118] S507: Operate the first moving part 11 and the second moving part 12 to move them to the maximum extent in a direction that moves them further apart from each other;

[0119] S508: Place the upper cover plate 91 on the left web plate 93 and the right web plate 94, and operate the first moving part 11 and the second moving part 12 to move towards each other until the first upper bolt 1132 and the second upper bolt 1232 are in contact with the edge of the upper cover plate 91.

[0120] S509: Move the first movable rod 2143 vertically downwards, and drive the first clamping member 2141 to rotate 90° towards the upper cover plate 91 via the first linkage shaft 2145 until the first clamping member 2141 is directly above the upper cover plate 91. At the same time, move the second movable rod 2243 vertically downwards, and drive the second clamping member 2241 to rotate 90° towards the upper cover plate 91 via the second linkage shaft 2245 until the second clamping member 2241 is directly above the upper cover plate 91. Continue to move the first movable rod 2143 and the second movable rod 2243 vertically downwards, and drive the first clamping member 2141 and the second clamping member 2241 to move towards the upper cover plate 91 until the upper cover plate 91 is pressed and fixed. After confirming that the dimensions of the support leg box are correct, spot weld the upper cover plate 91 to the left web plate 93 and the right web plate 94.

[0121] S510: Operate the first moving part 11 and the second moving part 12 to move them to the maximum extent in a direction that moves them further apart from each other;

[0122] S511: Operate the first movable rod 2143 and the second movable rod 2243 to move vertically upward, causing the first clamping member 2141 and the second clamping member 2241 to move away from the upper cover plate 91 until they no longer contact the upper cover plate 91. Operate the first movable rod 2143 to continue moving vertically upward, causing the first clamping member 2141 to rotate 90° away from the upper cover plate 91 through the first linkage shaft 2145 until the first clamping member 2141 is away from the positioning area. At the same time, operate the first movable rod 2143 to continue moving vertically upward, causing the second clamping member 2241 to rotate 90° away from the upper cover plate 91 through the second linkage shaft 2245 until the second clamping member 2241 is away from the positioning area.

[0123] S512: The first electromagnet 2132 is deprived of its attraction force by the first operating button 2134, and the second electromagnet 2232 is deprived of its attraction force by the second operating button 2234;

[0124] S513: Move the first clamping member 2122 and the second clamping member 2222 away from the lower cover plate 92 until they no longer contact the lower cover plate 92. Rotate the first clamping member 2122 90° away from the first support block 2121 until the first clamping member 2122 is away from the positioning area. At the same time, rotate the second clamping member 2222 90° away from the second support block 2221 until the second clamping member 2222 is away from the positioning area.

[0125] S514: Remove the assembled support leg housing from the assembly device; assembly is complete.

[0126] It should be noted that, in this application, unless otherwise stated, directional terms such as "up," "down," "left," and "right" generally refer to the orientation in the accompanying drawings with the right view as a reference; "far" and "near" refer to the relative relationship between objects in relative motion.

[0127] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0128] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0129] In the description of this specification, references to terms such as "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0130] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A container assembly device, characterized in that, include: The centering mechanism (10) includes a first moving part (11) and a second moving part (12), which form a centering area for the upper cover plate (91), lower cover plate (92), left web plate (93), and right web plate (94) of the support leg (90) to be inserted. The first moving part (11) and the second moving part (12) are configured to move synchronously toward each other or toward each other to shrink or expand the centering area and center the upper cover plate (91) and the lower cover plate (92) to a parallel and opposite welding position. The first moving part (11) includes a first moving support (111), a first lower centering component (112) and a first upper centering component (113) disposed on the first moving support (111). The first lower centering component (112) and the first upper centering component (113) are both located in the centering area. The middle component (112) can contact the edge of the lower cover plate (92) to push the lower cover plate (92) to the welding position, and the first upper centering component (113) can contact the edge of the upper cover plate (91) to push the upper cover plate (91) to the welding position; the second moving part (12) includes a second moving support (121), a second lower centering component (122) and a second upper centering component (123) disposed on the second moving support (121), the second lower centering component (122) and the second upper centering component (123) are both located in the centering area, the second lower centering component (122) can contact the edge of the lower cover plate (92) to push the lower cover plate (92) to the welding position, and the second upper centering component (123) can contact the edge of the upper cover plate (91) to push the upper cover plate (91) to the welding position; as well as A positioning mechanism (20) has a positioning area for inserting the upper cover plate (91), lower cover plate (92), left belly plate (93), and right belly plate (94) of the support leg (90). The positioning area is directly opposite the centering area, so that the upper cover plate (91), lower cover plate (92), left belly plate (93), and right belly plate (94) are simultaneously located in the positioning area and the centering area. The positioning mechanism (20) is used to position the upper cover plate (91) and lower cover plate (92) with the left belly plate (93) and... The right web plate (94) is fixed to a welding position perpendicular to each other; the positioning mechanism (20) includes a first positioning part (21) and a second positioning part (22), which form the positioning area. The first positioning part (21) and the second positioning part (22) are configured to move synchronously in a direction that moves closer to or further away from each other to reduce or expand the positioning area. The moving direction of the first positioning part (21) is the same as the moving direction of the first moving part (11), and the moving direction of the second positioning part (22) is the same as the moving direction of the second moving part (12).

2. The assembly device according to claim 1, characterized in that, The extension length of the first lower centering component (112) toward the centering region is less than the extension length of the first upper centering component (113) toward the centering region; And / or, The extension length of the second lower centering component (122) toward the centering region is less than the extension length of the second upper centering component (123) toward the centering region.

3. The container assembly device according to claim 2, characterized in that, The first upper centering component (113) slides in engagement with the first movable support (111), and the first upper centering component (113) has an angle between its moving direction along the first movable support (111) and its own moving direction; and / or, The second upper centering component (123) is slidably engaged with the second movable support (121), and the second upper centering component (123) has an angle between the moving direction of the second movable support (121) and the moving direction of the second movable support (121) itself.

4. The container assembly device according to claim 1, characterized in that, The centering mechanism (10) further includes a support member (13) located between the first moving part (11) and the second moving part (12), and the support member (13) is able to contact the lower cover plate (92) to support the lower cover plate (92).

5. The container assembly device according to claim 4, characterized in that, The first positioning part (21) includes a first positioning support (211) and a first lower positioning component (212), a first middle positioning component (213), and a first upper positioning component (214) disposed on the first positioning support (211). The first lower positioning component (212) can clamp the lower cover plate (92) to fix the lower cover plate (92). The first middle positioning component (213) can adsorb the left web plate (93) to fix the left web plate (93) to the welding position. The first upper positioning component (214) can press and fix the upper cover plate (91) to the left web plate (93) and the right web plate (94); and / or, The second positioning part (22) includes a second positioning support (221) and a second lower positioning component (222), a second middle positioning component (223) and a second upper positioning component (224) disposed on the second positioning support (221). The second lower positioning component (222) can clamp the lower cover plate (92) to fix the lower cover plate (92). The second middle positioning component (223) can adsorb the right web plate (94) to fix the right web plate (94) to the welding position. The second upper positioning component (224) can press the upper cover plate (91) and fix it to the left web plate (93) and the right web plate (94).

6. The container assembly device according to claim 5, characterized in that, The first lower positioning component (212) is located within the positioning area. The first lower positioning component (212) includes a first support block (2121) and a first clamping member (2122) disposed above the first support block (2121). A first clamping area for clamping the lower cover plate (92) can be formed between the first support block (2121) and the first clamping member (2122). The first clamping member (2122) is movably engaged with the first positioning support (211). The first clamping member (2122) can move relative to the first support block (2121) to expand or shrink the first clamping area; and / or, The second lower positioning component (222) is located within the positioning area. The second lower positioning component (222) includes a second support block (2221) and a second clamping member (2222) disposed above the second support block (2221). A second clamping area for clamping the lower cover plate (92) can be formed between the second support block (2221) and the second clamping member (2222). The second clamping member (2222) is movably engaged with the second positioning support (221). The second clamping member (2222) can move relative to the second support block (2221) to expand or shrink the second clamping area.

7. The assembly device according to claim 5, characterized in that, The first positioning component (213) is located within the positioning area. The minimum distance between the first positioning component (213) and the second positioning part (22) can be adjusted to be equal to the welding distance between the left web plate (93) and the right web plate (94). The first positioning component (213) includes a first positioning block (2131) and a first electromagnet (2132) disposed on the first positioning block (2131). The first electromagnet (2132) can attract the left web plate (93) to fix the left web plate (93) to the welding position and make the left web plate (93) perpendicular to the lower cover plate (92); and / or, The second positioning component (223) is located within the positioning area. The minimum distance between the second positioning component (223) and the first positioning part (21) can be adjusted to be equal to the welding distance between the left web plate (93) and the right web plate (94). The second positioning component (223) includes a second positioning block (2231) and a second electromagnet (2232) disposed on the second positioning block (2231). The second electromagnet (2232) can attract the right web plate (94) to fix the right web plate (94) to the welding position and make the right web plate (94) perpendicular to the lower cover plate (92).

8. The container assembly device according to claim 5, characterized in that, The first upper positioning assembly (214) includes a first clamping member (2141) that movably engages with the first positioning support (211). The first clamping member (2141) is movable relative to the first positioning support (211) toward or away from the first middle positioning assembly (213) to clamp or release the upper cover plate (91); and / or, The second upper positioning assembly (224) includes a second clamping member (2241) that is movably engaged with the second positioning support (221). The second clamping member (2241) is movable relative to the second positioning support (221) toward or away from the second middle positioning assembly (223) to clamp or release the upper cover plate (91).

9. The assembly device according to any one of claims 1 to 8, characterized in that, The assembly device further includes a base platform (30), on which a plurality of centering mechanisms (10) and a plurality of positioning mechanisms (20) are provided. At least one centering mechanism (10) and at least one positioning mechanism (20) slide in cooperation with the base platform (30). The sliding direction of the centering mechanism (10) and the positioning mechanism (20) relative to the base platform (30) has an angle with the moving direction of the first moving part (11) and the second moving part (12).

10. A method for assembling containers, characterized in that, Includes the following steps: Select the sheet material; The sheet material is cut; The sheet metal is leveled to obtain an upper cover plate, a lower cover plate, a left web plate, and a right web plate; The upper cover plate and the lower cover plate are milled. The upper cover plate, the lower cover plate, the left web plate, and the right web plate are assembled using the assembly device as described in any one of claims 1 to 9 to obtain the support leg box body.

Images