Rack welding tool

Abstract

The utility model discloses a material rack welding tool which comprises a base plate tool assembly (3) and a stand column tool assembly installed on the base plate tool assembly (3). The chassis tool assembly (3) comprises a base used for supporting longitudinal beams (11) and transverse beams (12), a plurality of longitudinal beam positioning and pressing mechanisms (31) and a plurality of transverse beam positioning and pressing mechanisms, the longitudinal beam positioning and pressing mechanisms (31) and the transverse beam positioning and pressing mechanisms (31) are installed on the base in the length direction of the longitudinal beams (11), and a distance exists between every two adjacent longitudinal beam positioning and pressing mechanisms (31). Each longitudinal beam positioning and pressing mechanism (31) comprises a vertical positioning piece (311) used for positioning the vertical position of the longitudinal beam (11) and a longitudinal positioning piece (317) used for positioning the longitudinal position of the longitudinal beam (11), and a plurality of cross beams (12) are respectively positioned at the positions corresponding to the cross beam positioning and pressing mechanisms. The rack welding tool can be used for manufacturing racks which are consistent in error and meet the design requirement, and the efficiency is greatly improved compared with that of lineation assembly.

Description

Technical Field

[0001] The utility model relates to the field of metal structural parts manufacturing technology, in particular to a material rack welding tool. Background Art

[0002] During the heat treatment of aluminum alloy extruded profiles, in order to save energy and increase the furnace loading capacity, multiple layers of profiles need to be placed on each rack. In order to heat the profiles evenly during heat treatment to ensure stable performance, each layer needs to be separated by shelf strips for uniform heating. When the extruder extrude the profiles, the shelf strips are automatically placed at the set shelf position, and then the profiles are hoisted into the rack. The operation is repeated for each layer until the rack is full. When the size deviation of the shelf is large, the shelf strips often get stuck and fall, requiring manual intervention and affecting production efficiency. Therefore, the size consistency of the shelf is required to be high. The shelf is installed on the columns on both sides. The size and position accuracy of the columns determine the accuracy of the shelf.

[0003] The material racks are transmitted by online rails and transported to the storage site under the rotational force of the horizontal track rollers and the positioning of the side wheels. Therefore, the longitudinal beam accuracy of the chassis is also required to be high. In order to save space, the material racks need to be placed in multiple layers. The bowl-shaped guide at the bottom of one material rack enters the upper lifting head position of the lower layer of the material rack to achieve overlapping support, and the upper lifting head and lifting hole must be coordinated with the lifting point of the intelligent automatic crane. Therefore, the dimensional accuracy of the upper lifting heads and lower bowl-shaped guides of the four main columns is more important.

[0004] In summary, the dimensional accuracy requirements of the entire rack structure are very high. In order to meet its high-precision requirements, the size of each component must be strictly controlled. However, the errors of each rack produced by riveters are different, making it difficult to place shelf strips, transport and overlap, and wasting labor, which brings inconvenience to workers.

[0005] In summary, how to effectively solve the problem that each rack has different errors and is difficult to place, transport and overlap shelf strips is a problem that technicians in this field urgently need to solve. Utility Model Content

[0006] The utility model aims to provide a material rack welding tool, which can manufacture material racks with consistent errors and meeting design requirements, and greatly improves the efficiency of marking assembly.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] A material rack welding tool comprises a chassis tool assembly and a column tool assembly installed on the chassis tool assembly.

[0009] The chassis tooling assembly includes a base for supporting longitudinal beams and cross beams, a plurality of longitudinal beam positioning and clamping mechanisms and a plurality of cross beam positioning and clamping mechanisms installed on the base and along the length direction of the longitudinal beams, and a distance is provided between adjacent longitudinal beam positioning and clamping mechanisms. The longitudinal beam positioning and clamping mechanisms include a vertical positioning member for positioning the vertical position of the longitudinal beam and a longitudinal positioning member for positioning the longitudinal position of the longitudinal beam, and a plurality of cross beams are respectively positioned at positions corresponding to the cross beam positioning and clamping mechanisms.

[0010] Preferably, the crossbeam positioning and clamping mechanism comprises a positioning block fixed on the base and a clamping plate matched with the positioning block, and the crossbeam is clamped between the positioning block and the clamping plate.

[0011] Preferably, the longitudinal beam positioning and clamping mechanism also includes a support seat with a gap in the longitudinal direction, the longitudinal beam passes through the gap, the longitudinal positioning member is connected to the support seat on one side, and its end is against the side wall of the longitudinal beam so that the other side wall of the longitudinal beam abuts against the support seat on the other side.

[0012] Preferably, a horizontal plate is provided at the upper end of the support seat, the vertical positioning member is connected to the horizontal plate, the vertical positioning member is connected to the horizontal plate for lifting and lowering, and the lower end of the vertical positioning member is pressed on the top surface of the longitudinal beam so that the bottom surface of the longitudinal beam is pressed tightly to the positioning surface of the base.

[0013] Preferably, the vertical positioning member and the longitudinal positioning member are threaded rods, which are respectively threadedly connected to the corresponding threaded holes, and a clamping pad is provided at the bottom of the vertical positioning member. The cross plate is rotatably connected to the upper end surface of the support seat on one side, and the upper end surface of the support seat on the other side is provided with a slot plate that is clamped with the cross plate, and the longitudinal positioning member is located on the same side of the support seat.

[0014] Preferably, the column tooling assembly includes a main column tooling assembly and an auxiliary column tooling assembly.

[0015] The main column tooling assembly includes a mounting column connected to the base, a lower positioning mechanism installed at the lower part of the mounting column, and an upper positioning mechanism installed at the upper part of the mounting column for positioning the upper end shaft of the main column. The lower positioning mechanism includes a group of parallel longitudinal positioning plates, and a longitudinal clamping member connected to the longitudinal positioning plates for clamping a pair of longitudinal parallel side walls of the main column. The upper positioning mechanism includes a pair of rotating arms rotatably connected to the mounting column, and the opposite surfaces of the two rotating arms are provided with clamping holes matching the upper end shaft.

[0016] Preferably, an intermediate limit block is provided on the upper end surface of the mounting column, and the opposite surfaces of the two rotating arms are provided with limit holes adapted to the intermediate limit block, and when the two rotating arms clamp the upper end shaft, the limit hole fits with the intermediate limit block and the opposite surfaces of the two rotating arms fit with each other.

[0017] Preferably, the longitudinal positioning plate is rotatably connected to the side wall of the mounting column, and the upper positioning mechanism also includes a group of parallel transverse positioning plates, and transverse clamping members connected to the transverse positioning plates for clamping a pair of transverse parallel side walls of the main column, and the transverse positioning plates are plug-connected to the longitudinal positioning plates.

[0018] Preferably, the auxiliary column tooling assembly includes a support column connected to the base and several groups of longitudinal positioning mechanisms installed vertically on the support column, the longitudinal positioning mechanism includes a rotating arm rotatably connected to the side wall of the support column, and the rotating arm is provided with a positioning pin at one end away from the installation column for connecting with the auxiliary column.

[0019] Preferably, a bottom plate is installed on the base, a cross keyway is processed on the bottom plate, the bottom surface of the bottom mounting seat of the mounting column and the supporting column has a slider adapted to the cross keyway, and the slider is slidably connected to the cross keyway.

[0020] The material rack welding tooling provided by the utility model comprises a chassis tooling assembly and a column tooling assembly installed on the chassis tooling assembly. The chassis tooling assembly is used to support and position the longitudinal beams and transverse beams of the material rack. The column tooling assembly is installed on the chassis tooling assembly and is used to support and / or position the columns on both sides of the material rack. The columns are provided with connecting holes for connecting to the shelf racks, and the shelf strips are connected to the connecting holes of the shelf racks on both sides.

[0021] The chassis tooling assembly includes a base, which is welded from I-beams. A longitudinal beam positioning and clamping mechanism and a cross beam positioning and clamping mechanism are supported on the base. Specifically, multiple longitudinal beam positioning and clamping mechanisms and multiple cross beam positioning and clamping mechanisms are installed on the base.

[0022] Multiple longitudinal beam positioning and clamping mechanisms and multiple cross beam positioning and clamping mechanisms are sequentially arranged along the longitudinal beam length direction, and multiple cross beams are positioned at the corresponding cross beam positioning and clamping mechanisms, respectively, to clamp the cross beams to the positioning surface. The longitudinal beam positioning and clamping mechanisms are divided into horizontal and vertical clamping, the vertical positioning member positions the vertical position of the longitudinal beam, the longitudinal positioning surfaces of multiple longitudinal beam positioning and clamping mechanisms are in a straight line, and the longitudinal positioning member positions the longitudinal position of the longitudinal beam. There is a distance between adjacent longitudinal beam positioning and clamping mechanisms, and the entire length direction of the longitudinal beam is positioned to uniformly clamp the longitudinal beam to the positioning surface.

[0023] The material rack welding tooling provided by the utility model strictly controls the size of each component and can manufacture material racks with consistent errors. The dimensional accuracy requirements of the entire material rack structure are very high. The material rack meets its high-precision design requirements, realizes the processes of placing shelf strips, transportation and overlapping, and greatly improves the efficiency of marking assembly. The tooling cost is relatively low and the operation is simple, which meets the production needs of small batches. The tooling has no hydraulic and electrical systems, and the tooling does not require maintenance during storage, and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of a typical material rack;

[0026] Figure 2 for Figure 1 Cross-sectional view of CC;

[0027] Figure 3 This is an axonometric view of a typical material rack;

[0028] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0029] Figure 5 It is a schematic diagram of material rack overlap and loading;

[0030] Figure 6 It is a schematic diagram of the connection between the shelf frame and the shelf strips;

[0031] Figure 7 A schematic diagram of the structure of a material rack welding tool provided in a specific implementation manner of the utility model;

[0032] Figure 8 This is the front view of the material rack welding tooling;

[0033] Fig. 9 It is a top view of the material rack welding tooling;

[0034] Fig.10 It is a side view of the material rack welding tooling;

[0035] Fig.11 for Figure 8 Sectional view of EE in the figure;

[0036] Fig.12 for Figure 8 Cross-sectional view of the middle FF;

[0037] Fig.13 It is a structural schematic diagram of the longitudinal beam positioning and clamping mechanism;

[0038] Fig.14 Axonometric drawing of the clamping mechanism for positioning the longitudinal beam;

[0039] Fig.15 A structural schematic diagram of the main column tooling assembly;

[0040] Fig.16 for Fig.15 Cross-sectional view of the middle BB;

[0041] Fig.17 Axonometric drawing of the main column tooling assembly;

[0042] Fig.18 It is a structural schematic diagram of the auxiliary column tooling assembly;

[0043] Fig.19 This is the axonometric view of the auxiliary column tooling assembly.

[0044] The following are marked in the accompanying drawings:

[0045] Material rack 1, longitudinal beam 11, cross beam 12, main column 13, upper hanging head 131, hanging hole 132, lower bowl-shaped guide 133, auxiliary column 14, shelf frame 15, shelf strip 16, lateral guide wheel 17, horizontal support wheel 18, profile 2, chassis tooling assembly 3, longitudinal beam positioning and clamping mechanism 31, vertical positioning piece 311, rotating shaft 312, cross plate 313, support seat 314, positioning surface 315, clamping pad 316, longitudinal positioning piece 317, main column tooling assembly 4, mounting column 41, lower rotating shaft 42, longitudinal positioning plate 43, transverse positioning plate 44, first locking assembly 45, rotating arm 46, middle limit block 47, upper rotating shaft 48, auxiliary column tooling assembly 5, support column 51, rotating arm 52, rotating shaft 53, auxiliary limit plate 54, positioning pin 55, locking mechanism 56. DETAILED DESCRIPTION

[0046] The core of the utility model is to provide a material rack welding tool, which can manufacture material racks with consistent errors and meeting design requirements, and the efficiency is greatly improved compared with the marking assembly.

[0047] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0048] Please refer to Figures 1 to 19 , Figure 1 A schematic diagram of a typical material rack; Figure 2 for Figure 1 Cross-sectional view of CC; Figure 3 This is an axonometric view of a typical material rack; Figure 4 for Figure 3 A partial enlarged view of the middle A; Figure 5 It is a schematic diagram of material rack overlap and loading; Figure 6 It is a schematic diagram of the connection between the shelf frame and the shelf strips; Figure 7 A schematic diagram of the structure of a material rack welding tool provided in a specific implementation manner of the utility model; Figure 8 This is the front view of the material rack welding tooling; Fig. 9 This is a top view of the material rack welding tooling; Fig.10 It is a side view of the material rack welding tooling; Fig.11 for Figure 8 Sectional view of EE in the figure; Fig.12 for Figure 8 Cross-sectional view of the middle FF; Fig.13 It is a structural schematic diagram of the longitudinal beam positioning and clamping mechanism; Fig.14 Axonometric drawing of the clamping mechanism for positioning the longitudinal beam; Fig.15 A structural schematic diagram of the main column tooling assembly; Fig.16 for Fig.15 Cross-sectional view of the middle BB; Fig.17 Axonometric drawing of the main column tooling assembly; Fig.18 It is a structural schematic diagram of the auxiliary column tooling assembly; Fig.19 This is the axonometric view of the auxiliary column tooling assembly.

[0049] The manufacturing process sequence of the rack 1 is to first assemble and weld on the tooling with the lower plane of the chassis facing upward, then turn the chassis over to assemble and weld, then assemble and weld the main columns 13 and auxiliary columns 14, and finally assemble the bolts of the shelf frame 15, and the shelf strips 16 are automatically placed at the set position of the shelf frame 15, and then the profile 2 is hoisted into the rack 1. Since most of the welds of the rack 1 are symmetrically distributed about the neutral axis of the chassis, and the welding is performed under forced constraint, that is, compression, the welding deformation is small, so there is no need to arrange a correction process.

[0050] According to the above process flow, the material rack welding tool provided by the utility model includes a chassis tool assembly 3, a column tool assembly installed on the chassis tool assembly 3,

[0051] The chassis tooling assembly 3 includes a base for supporting the longitudinal beam 11 and the cross beam 12, a plurality of longitudinal beam positioning and clamping mechanisms 31 and a plurality of cross beam positioning and clamping mechanisms installed on the base and along the length direction of the longitudinal beam 11, and a distance is provided between adjacent longitudinal beam positioning and clamping mechanisms 31. The longitudinal beam positioning and clamping mechanisms 31 include a vertical positioning member 311 for positioning the vertical position of the longitudinal beam 11 and a longitudinal positioning member 317 for positioning the longitudinal position of the longitudinal beam 11, and a plurality of cross beams 12 are respectively positioned at the corresponding cross beam positioning and clamping mechanisms.

[0052] In the above structure, the material rack welding tooling includes a chassis tooling assembly 3 and a column tooling assembly installed on the chassis tooling assembly 3. The chassis tooling assembly 3 is used to support and position the longitudinal beam 11 and the transverse beam 12 of the material rack 1. The column tooling assembly is installed on the chassis tooling assembly 3 and is used to support and / or position the columns on both sides of the material rack 1. The columns are provided with connecting holes for connecting the shelf racks 15, and the shelf strips 16 are connected to the connecting holes of the shelf racks 15 on both sides.

[0053] The chassis tooling assembly 3 includes a base, which is welded from I-beams, and a longitudinal beam positioning and clamping mechanism 31 and a cross beam positioning and clamping mechanism are supported on the base. Specifically, multiple longitudinal beam positioning and clamping mechanisms 31 and multiple cross beam positioning and clamping mechanisms are installed on the base.

[0054] A plurality of longitudinal beam positioning and clamping mechanisms 31 and a plurality of cross beam positioning and clamping mechanisms are sequentially arranged along the length direction of the longitudinal beam 11 , and a plurality of cross beams 12 are respectively positioned at corresponding cross beam positioning and clamping mechanisms, and the cross beams 12 are clamped to the positioning surface.

[0055] The longitudinal beam positioning and clamping mechanism 31 is divided into horizontal and vertical clamping, the vertical positioning member 311 locates the vertical position of the longitudinal beam 11, the longitudinal positioning surfaces of multiple longitudinal beam positioning and clamping mechanisms 31 are in a straight line, and the longitudinal positioning member 317 locates the longitudinal position of the longitudinal beam 11. There is a distance between adjacent longitudinal beam positioning and clamping mechanisms 31, and the entire length direction of the longitudinal beam 11 is positioned, and the longitudinal beam 11 is evenly pressed to the positioning surface.

[0056] Preferably, the longitudinal beam positioning and clamping mechanism 31 and the cross beam positioning and clamping mechanism are arranged at intervals, which can ensure accurate positioning of the longitudinal beam 11 along the entire length direction and ensure that the longitudinal beam positioning and clamping mechanism 31 and the cross beam positioning and clamping mechanism do not interfere with each other.

[0057] The chassis assembly and welding steps include:

[0058] Place the cross beam 12 and the longitudinal beam 11 to the set position, and all the beams are placed on the base reference plane;

[0059] Press the cross beam 12 and the longitudinal beam 11 to the positioning surface;

[0060] After spot welding the cross beam 12 and the longitudinal beam 11, start welding all the welds;

[0061] Loosen the clamping part of the tooling and take out the chassis;

[0062] The chassis is turned over and re-fixed on the tooling, and the weld seam previously blocked by the tooling is exposed to the upper side for welding. At this time, the direction of the chassis meets the assembly requirements of the lower plane and the lateral guide wheel 17 and the horizontal support wheel 18, and it is no longer necessary to turn over, and the column assembly and welding can be directly carried out.

[0063] The material rack welding tooling provided by the utility model strictly controls the size of each component and can manufacture a material rack 1 with consistent errors. The dimensional accuracy requirements of the entire material rack 1 structure are very high. The material rack 1 meets its high-precision design requirements, realizes the process of placing shelf strips 16, transportation and overlapping, and greatly improves the efficiency of marking assembly. The tooling cost is relatively low and the operation is simple, which meets the production needs of small batches. The tooling has no hydraulic and electrical systems, and the tooling does not require maintenance during storage, and has a long service life.

[0064] On the basis of the above specific embodiment, the crossbeam positioning and clamping mechanism includes a positioning block fixed on the base and a clamping plate matched with the positioning block, and the crossbeam 12 is clamped between the positioning block and the clamping plate.

[0065] In a specific embodiment, since the vertical position accuracy requirements of the beam 12 are slightly lower, the beam 12 is placed on the tooling base under the action of gravity, and the beam positioning and clamping mechanism can only be set for horizontal positioning and clamping, which simplifies the structure of the beam positioning and clamping mechanism and reduces costs.

[0066] The crossbeam positioning and clamping mechanism includes a positioning block and a top clamping plate. The positioning block is fixed on the base, and can be connected to the base by welding. The base includes a longitudinal rod and a transverse rod. The number of the positioning block is at least one. The positioning block can be set on the transverse rod between the two longitudinal rods of the base. Multiple positioning blocks are arranged longitudinally, and the crossbeam 12 of the material rack 1 rests on the positioning block.

[0067] The top clamping plate is matched with the positioning block. After the cross beam 12 abuts against the positioning block, the top clamping plate moves laterally, that is, moves toward the cross beam 12. The top clamping plate presses the cross beam 12 and clamps the cross beam 12 between the positioning block and the top clamping plate to position and clamp the cross beam 12.

[0068] On the basis of the above-mentioned specific embodiments, the longitudinal beam positioning and clamping mechanism 31 also includes a support seat 314 with a gap in the longitudinal direction, the longitudinal beam 11 passes through the gap, and the longitudinal positioning member 317 is connected to the support seat 314 on one side, and its end is against the side wall of the longitudinal beam 11 so that the other side wall of the longitudinal beam 11 abuts against the support seat 314 on the other side.

[0069] In a specific embodiment, the longitudinal beam positioning and clamping mechanism 31 also includes a support seat 314, and the support seat 314 for bearing force is installed at a preset position of the tooling base. The support seat 314 and the base are detachably connected, and can be specifically connected by bolts.

[0070] The support seat 314 includes two half seats, which are arranged longitudinally, with a gap between the two half seats in the longitudinal direction, and the longitudinal beam 11 passes through the gap. A longitudinal positioning member 317 is connected to one of the half seats, and the longitudinal positioning member 317 is perpendicular to the inner wall of the half seat, and the end of the longitudinal positioning member 317 is parallel to the inner wall of the half seat. The longitudinal positioning member 317 can be longitudinally retracted relative to the half seat, and the end of the longitudinal positioning member 317 is against the side wall of the longitudinal beam 11, so that the other side wall of the longitudinal beam 11 abuts against the inner wall of the other half seat, realizing horizontal longitudinal compression of the longitudinal beam 11.

[0071] Based on the above-mentioned specific embodiments, a horizontal plate 313 is provided at the upper end of the support seat 314, and a vertical positioning member 311 is connected to the horizontal plate 313. The vertical positioning member 311 is connected to the horizontal plate 313 for lifting and lowering, and the lower end of the vertical positioning member 311 is pressed against the top surface of the longitudinal beam 11 so that the bottom surface of the longitudinal beam 11 is pressed tightly to the positioning surface of the base.

[0072] In a specific embodiment, the transverse plate 313 is connected to the upper ends of the two half seats, and the two half seats support the two ends of the transverse plate 313. The vertical positioning member 311 is connected to the transverse plate 313, and the axial direction of the vertical positioning member 311 is along the vertical direction. The vertical positioning member 311 can be raised and lowered relative to the transverse plate 313. The lower end of the vertical positioning member 311 is parallel to the positioning surface of the base, and the lower end of the vertical positioning member 311 is pressed on the top surface of the longitudinal beam 11 so that the bottom surface of the longitudinal beam 11 is pressed against the positioning surface of the base, thereby realizing the vertical pressing of the longitudinal beam 11.

[0073] It should be noted that the material rack welding tooling of the present application can be equipped with a team of four riveters and organized for production at a rhythm of two material racks 1 per shift. Therefore, the use of an electric wrench to tighten the bolts and the use of handle-type bolts for tightening or clamping can meet the rhythm requirements, and the clamping force can be achieved by adjusting the torque of the electric wrench. This tooling can meet production needs, so no hydraulic or electric clamping mechanism is used, which reduces the manufacturing cost and maintenance cost of the tooling.

[0074] On the basis of the above-mentioned specific embodiments, the vertical positioning member 311 and the longitudinal positioning member 317 are threaded rods, which are respectively threadedly connected to the corresponding threaded holes.

[0075] In a specific embodiment, the vertical positioning member 311 and the longitudinal positioning member 317 are threaded rods, which can be specifically bolts. The cross plate 313 and the side wall of the half seat are provided with threaded holes. The threaded rods are threadedly connected to the threaded holes to facilitate the relative position adjustment of the threaded rods and the threaded holes, so that the vertical positioning member 311 and the longitudinal positioning member 317 can vertically and horizontally press the longitudinal beam 11.

[0076] On the basis of the above-mentioned specific embodiments, a pressing pad 316 is provided at the bottom of the vertical positioning member 311 .

[0077] In a specific embodiment, the vertical positioning member 311 is threadedly connected to the upper screw hole of the pressing pad 316. The pressing pad 316 is equivalent to the extended arm of the vertical positioning member 311. Once the threaded rod is loosened, the pressing pad 316 can be immediately screwed and removed to reduce the stroke of tightening the threaded rod. At the same time, the bottom surface area of ​​the pressing pad 316 is large and flat, which reduces the concentrated stress and indentation on the longitudinal beam 11.

[0078] Based on the above specific embodiments, the horizontal plate 313 is rotatably connected to the upper end surface of the support seat 314 on one side, and the upper end surface of the support seat 314 on the other side is provided with a slot plate that is engaged with the horizontal plate 313 .

[0079] In a specific embodiment, the vertically pressed cross plate 313 is connected to the upper end surface of one half seat through a rotating shaft 312, and the cross plate 313 can rotate around the rotating shaft 312. When placing the longitudinal beam 11 or taking out the longitudinal beam 11, the cross bar is rotated to the upper part away from the gap between the two half seats, and the upper gap opening is exposed, so that the longitudinal beam 11 can be placed in the gap between the two half seats and the bottom plate of the rack 1 can be taken out.

[0080] The upper end surface of the other half seat is connected to the slot plate, and the side of the slot plate is provided with a slot. When the horizontal plate 313 rotates toward one side of the slot and rotates to the pressing position, the side of the horizontal plate 313 is inserted into the slot, locking the horizontal plate 313 to prevent the horizontal plate 313 from continuing to rotate around the rotating shaft 312. When the gap needs to be exposed, the horizontal plate 313 is rotated in the opposite direction to come out of the slot, contacting the horizontal plate 313 and locking it.

[0081] Based on the above-mentioned specific embodiments, the longitudinal positioning member 317 is located on the same side of the supporting seat 314 .

[0082] In a specific embodiment, the positioning surfaces of the longitudinal beam 11 are set on the same side, and the positioning surfaces of the support seat 314 are on a straight line. The longitudinal positioning member 317 positions and presses the longitudinal beam 11 to the positioning surface 315 of the support seat 314, and the positioning is accurate. After the material rack 1 moves to one side, the material rack 1 can be lifted out, which is convenient for the material rack 1 to be easily removed from the tooling. The longitudinal positioning member 317 is located on the same side of the support seat 314, and the longitudinal positioning member 317 is adjusted on the same side, and the operator does not need to cross the longitudinal beam 11, which is convenient for adjustment.

[0083] On the basis of the above-mentioned specific embodiments, the column tooling assembly includes a main column tooling assembly 4 and an auxiliary column tooling assembly 5.

[0084] The main column tooling assembly 4 includes a mounting column 41 connected to the base, a lower positioning mechanism installed at the lower part of the mounting column 41, and an upper positioning mechanism installed at the upper part of the mounting column 41 for positioning the upper end axis of the main column 13. The lower positioning mechanism includes a group of parallel longitudinal positioning plates 43, and a longitudinal clamping member connected to the longitudinal positioning plates 43 for clamping a pair of longitudinal parallel side walls of the main column 13. The upper positioning mechanism includes a pair of rotating arms 46 rotatably connected to the mounting column 41, and the opposite surfaces of the two rotating arms 46 are provided with clamping holes matching the upper end axis.

[0085] In a specific embodiment, a plurality of main column tooling assemblies 4 are used to position the main columns 13 , and a plurality of auxiliary column tooling assemblies 5 are used to position the auxiliary columns 14 . For example, the number of main column tooling assemblies 4 is 2 pairs, and the number of auxiliary column tooling assemblies 5 is 7 pairs.

[0086] The main column tooling assembly 4 includes a mounting column 41 , a lower positioning mechanism and an upper positioning mechanism. The mounting column 41 is mounted on the base, and the axial direction of the mounting column 41 is along the vertical direction. The lower positioning mechanism and the upper positioning mechanism are respectively mounted on the lower and upper parts of the mounting column 41 .

[0087] The upper positioning mechanism includes a pair of rotating arms 46, which are connected to the mounting column 41 through an upper rotating shaft 48, and the rotating arms 46 can rotate around the upper rotating shaft 48. The two rotating arms 46 rotate relative to each other to approach each other; conversely, they rotate in the opposite direction to move away from each other. Clamping holes are provided on the opposite surfaces of the two rotating arms 46, and the upper end of the main column 13 has an upper end shaft, and the clamping hole matches the upper end shaft. When the two rotating arms 46 are close to each other, the clamping hole clamps the upper end shaft, thereby realizing the positioning of the upper end shaft of the main column 13 of the upper positioning mechanism; after the main column 13 is installed, the two rotating arms 46 move away from each other, and the clamping hole releases the upper end shaft.

[0088] The lower positioning mechanism includes a set of longitudinal positioning plates 43 and longitudinal jacking members, wherein a set of two longitudinal positioning plates 43 are parallel, and longitudinal jacking members are provided on the two longitudinal positioning plates 43, and the longitudinal jacking members are telescopically connected with the longitudinal positioning plates 43, and specifically, the longitudinal jacking members may be threaded rods, which are threadedly connected with the screw holes on the longitudinal positioning plates 43. The ends of the longitudinal jacking members are pressed against the side surfaces of the main column 13, and the longitudinal jacking members on both sides clamp a pair of longitudinal parallel side walls of the main column 13 to position and clamp the main column 13.

[0089] In the above embodiment, after the chassis is welded, the main column 13 is assembled. The bowl-shaped guide 133 at the bottom of the main column 13 enters the predetermined positioning position of the base, and the upper rotating arm 46 and the positioning seat of the hanging hole 132 are bolted together and rotated around the upper rotating shaft 48 to install the main column 13 and demould and take out the material rack 1.

[0090] It should be noted that the main column 13 is manufactured before assembly to ensure that the upper hanging head 131, the lower bowl-shaped guide 133, the hanging hole 132 and the installation hole of the shelf frame 15 meet the requirements of the drawing.

[0091] On the basis of the above-mentioned specific embodiments, the upper end surface of the mounting column 41 is provided with an intermediate stopper 47, and the opposite surfaces of the two rotating arms 46 are provided with stopper holes adapted to the intermediate stopper 47. When the two rotating arms 46 clamp the upper end shaft, the stopper holes fit with the intermediate stopper 47 and the opposite surfaces of the two rotating arms 46 fit with each other. The intermediate stopper 47 locates the positions of the two rotating arms 46, limits the extreme rotation positions of the two rotating arms 46, prevents the rotating arms 46 from over-rotating, and further prevents the two rotating arms 46 from colliding with each other when they rotate relative to each other.

[0092] In a preferred embodiment, the two rotating arms 46 are provided with a first locking assembly 45 for locking the two rotating arms 46 at one end away from the mounting column 41. Specifically, it can be a bolt locking assembly. The first locking assembly 45 locks the two rotating arms 46. After the first locking assembly 45 clamps, the upper hanging head 131 reaches the desired position, preventing the two rotating arms 46 from separating and causing the main column 13 to slip out of the clamping hole.

[0093] On the basis of the above-mentioned specific embodiments, the longitudinal positioning plate 43 is rotatably connected to the side wall of the mounting column 41 .

[0094] In a specific embodiment, the lower longitudinal positioning plate 43 moves around the lower rotating shaft 42 and can be rotated to the side away from the main column 13, either in the vertical direction or in the horizontal direction, so that the longitudinal positioning plate 43 avoids the main column 13 to facilitate demolding of the material rack 1.

[0095] In a preferred embodiment, the longitudinal positioning plate 43 is provided with a second locking assembly for locking the longitudinal positioning plate 43 and the mounting column 41 to prevent the longitudinal positioning plate 43 from moving around the lower rotating shaft 42 after being positioned, resulting in inaccurate positioning of the main column 13.

[0096] On the basis of the above-mentioned specific embodiments, the upper positioning mechanism further includes a group of parallel transverse positioning plates 44 and transverse clamping members connected to the transverse positioning plates 44 for clamping a pair of transverse parallel side walls of the main column 13 .

[0097] In a specific embodiment, a group of two transverse positioning plates 44 are parallel, and transverse jacking members are provided on the two transverse positioning plates 44. The transverse positioning plates 44 are telescopically connected to the transverse jacking members, and the transverse jacking members can be threaded rods, which are threadedly connected to the screw holes on the transverse positioning plates 44. The ends of the transverse jacking members are pressed against the side of the main column 13, and the transverse jacking members on both sides clamp the other pair of longitudinal parallel side walls of the main column 13. The transverse positioning plates 44 assist the longitudinal positioning plates 43 in strengthening the constraint of the main column 13, so as to realize the positioning and clamping of the main column 13 on all four sides.

[0098] On the basis of the above-mentioned specific embodiments, the transverse positioning plate 44 is plug-connected with the longitudinal positioning plate 43 .

[0099] In a specific embodiment, the transverse positioning plate 44 is a movable auxiliary positioning plate, and a bayonet is provided on the top of the longitudinal positioning plate 43. The transverse positioning plate 44 is assembled into the bayonet of the longitudinal positioning plate 43, and the plate can be removed by pulling it upward without affecting the rotation of the longitudinal positioning plate 43. The transverse positioning plate 44 assists the longitudinal positioning plate 43 in strengthening the constraint of the main column 13, improving the strength and accuracy of the positioning of the main column 13, so that after the tooling is released, the deformation of the main column 13 is within a controllable range.

[0100] On the basis of the above-mentioned specific embodiments, the auxiliary column tooling assembly 5 includes a support column 51 connected to the base, and a plurality of longitudinal positioning mechanisms installed vertically on the support column 51. The longitudinal positioning mechanism includes a rotating arm 52 rotatably connected to the side wall of the support column 51. The rotating arm 52 is provided with a positioning pin 55 at the end away from the mounting column 41 for connecting with the auxiliary column 14.

[0101] In a specific embodiment, since the auxiliary column 14 is only used to install the shelf rack 15, the accuracy requirement is slightly lower than that of the main column 13. In order to improve efficiency, the auxiliary column 14 may not be designed according to the tooling of the main column 13, simplifying the structure of the auxiliary column tooling assembly 5. Of course, the auxiliary column 14 may also be designed according to the tooling of the main column 13, and the auxiliary column tooling assembly 5 has the same structure as the main column tooling assembly 4, and has a higher positioning accuracy.

[0102] The auxiliary column tooling assembly 5 includes a support column 51 and a plurality of longitudinal positioning mechanisms. The support column 51 is installed on a base, and the longitudinal positioning mechanisms are installed on the support column 51 . The plurality of longitudinal positioning mechanisms are distributed vertically.

[0103] The longitudinal positioning mechanism includes a rotating arm 52, which is rotatably connected to the side wall of the support column 51 via a rotating shaft 53. The rotating arm 52 can be rotated to a side away from the auxiliary column 14. The rotating arm 52 can be in a vertical direction or a horizontal direction. The rotating arm 52 avoids the auxiliary column 14 to facilitate demoulding and removal of the material rack 1.

[0104] The rotating arm 52 is provided with a locking mechanism 56 for locking the rotating arm 52 and the supporting column 51. The rotating arm 52 rotates to the positioning reference plane to reach the working position, and the locking shaft and handle of the locking mechanism 56 lock the rotating arm 52 and the supporting column 51. The rotating arm 52 is provided with a positioning pin 55 at one end away from the mounting column 41. The positioning pin 55 cooperates with the positioning hole for positioning the auxiliary column 14. The positioning pin 55 penetrates the positioning hole for positioning the auxiliary column 14, and the position of the auxiliary column 14 is fixed, ensuring that the connection position of the rotating arm 52 and the auxiliary column 14 is accurate. After the position of the auxiliary column 14 is determined, the hole for mounting the shelf rack 15 is also located, ensuring that the height of the hole for mounting the shelf rack 15 is accurate.

[0105] Based on the above-mentioned specific embodiments, a bottom plate is installed on the base, and a cross keyway is processed on the bottom plate. The bottom surface of the bottom mounting seat of the mounting column 41 and the supporting column 51 has a slider adapted to the cross keyway, and the slider is slidably connected in the cross keyway.

[0106] In a specific embodiment, the bottom plate is fixed to the upper surface of the base, and can be connected by welding or bolts. A cross keyway is processed on the bottom plate, and the cross keyway has a cross-shaped keyway with a large opening at the upper end and a small opening at the lower end, such as a dovetail groove.

[0107] The bottom surface of the bottom mounting seat of the mounting column 41 and the supporting column 51 has a slider, which is adapted to the cross keyway, and the slider is inserted into the cross keyway and can move along the cross keyway. The bottom plate is used as the positioning reference of the column tooling assembly, and the specific positioning position of the column tooling assembly is adjusted through the cross keyway and the slider, which is convenient to adjust and accurate in positioning.

[0108] In a preferred embodiment, the mounting column 41 is connected to a main limit plate for limiting the vertical rotation position of the longitudinal positioning plate 43, and the supporting column 51 is connected to an auxiliary limit plate 54 for limiting the vertical rotation position of the rotating arm 52.

[0109] In a specific embodiment, a main limit plate is connected to the mounting column 41 to limit the vertical rotation position of the longitudinal positioning plate 43. An auxiliary limit plate 54 is connected to the support column 51 to limit the vertical rotation position of the rotating arm 52. The surfaces of the main limit plate and the auxiliary limit plate 54 are in the horizontal direction. When rotated to the positioning position, the bottom surfaces of the longitudinal positioning plate 43 and the rotating arm 52 overlap the main limit plate and the auxiliary limit plate 54, supporting the longitudinal positioning plate 43 and the rotating arm 52 to prevent the longitudinal positioning plate 43 and the rotating arm 52 from rotating downward. At the same time, the main limit plate and the auxiliary limit plate 54 limit the rotation direction of the longitudinal positioning plate 43 and the rotating arm 52. When they need to be rotated to the positioning position, they can only rotate upward on one side and cannot rotate in both directions to ensure the stability of the rotation.

[0110] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0111] The above is a detailed introduction to the material rack welding tooling provided by the utility model. This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model. Therefore, the utility model will not be limited to the embodiments shown in this article, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A material rack welding tool, characterized in that: It comprises a chassis tooling assembly (3), and a column tooling assembly installed on the chassis tooling assembly (3). The chassis tooling assembly (3) comprises a base for supporting a longitudinal beam (11) and a transverse beam (12), a plurality of longitudinal beam positioning and clamping mechanisms (31) and a plurality of transverse beam positioning and clamping mechanisms installed on the base and along the length direction of the longitudinal beam (11), wherein a distance is provided between adjacent longitudinal beam positioning and clamping mechanisms (31), wherein the longitudinal beam positioning and clamping mechanisms (31) comprise a vertical positioning member (311) for positioning the vertical position of the longitudinal beam (11) and a longitudinal positioning member (317) for positioning the longitudinal position of the longitudinal beam (11), and the plurality of transverse beams (12) are respectively positioned at positions corresponding to the transverse beam positioning and clamping mechanisms.

2. The material rack welding tool according to claim 1, characterized in that: The crossbeam positioning and clamping mechanism comprises a positioning block fixed on the base and a clamping plate matched with the positioning block, and the crossbeam (12) is clamped between the positioning block and the clamping plate.

3. The material rack welding tool according to claim 1, characterized in that: The longitudinal beam positioning and clamping mechanism (31) further comprises a support seat (314) having a gap in the longitudinal direction, the longitudinal beam (11) passing through the gap, the longitudinal positioning member (317) being connected to the support seat (314) on one side, with its end portion resting on the side wall of the longitudinal beam (11) so that the other side wall of the longitudinal beam (11) abuts against the support seat (314) on the other side.

4. The material rack welding tool according to claim 3, characterized in that: A transverse plate (313) is disposed at the upper end of the support seat (314), the vertical positioning member (311) is connected to the transverse plate (313), the vertical positioning member (311) is connected to the transverse plate (313) in a lifting manner, and the lower end of the vertical positioning member (311) is pressed against the top surface of the longitudinal beam (11) so that the bottom surface of the longitudinal beam (11) is pressed tightly against the positioning surface of the base.

5. The material rack welding tool according to claim 4, characterized in that: The vertical positioning member (311) and the longitudinal positioning member (317) are threaded rods, which are respectively threadedly connected to corresponding threaded holes. A clamping pad (316) is provided at the bottom of the vertical positioning member (311). The transverse plate (313) is rotatably connected to the upper end surface of the support seat (314) on one side. The upper end surface of the support seat (314) on the other side is provided with a slot plate that is clipped to the horizontal plate (313). The longitudinal positioning member (317) is located on the same side of the support seat (314).

6. The material rack welding tool according to any one of claims 1 to 5, characterized in that: The column tooling assembly comprises a main column tooling assembly (4) and an auxiliary column tooling assembly (5). The main column tooling assembly (4) comprises a mounting column (41) connected to the base, a lower positioning mechanism mounted on the lower part of the mounting column (41), and an upper positioning mechanism mounted on the upper part of the mounting column (41) for positioning the upper end shaft of the main column (13), the lower positioning mechanism comprising a group of parallel longitudinal positioning plates (43), and a longitudinal clamping member connected to the longitudinal positioning plates (43) for clamping a pair of longitudinal parallel side walls of the main column (13), and the upper positioning mechanism comprising a pair of rotating arms (46) rotatably connected to the mounting column (41), and the opposing surfaces of the two rotating arms (46) are provided with clamping holes matching the upper end shaft.

7. The material rack welding tool according to claim 6, characterized in that: The upper end surface of the mounting column (41) is provided with an intermediate limiting block (47), and the opposing surfaces of the two rotating arms (46) are provided with limiting holes matched with the intermediate limiting block (47); when the two rotating arms (46) clamp the upper end shaft, the limiting hole fits with the intermediate limiting block (47) and the opposing surfaces of the two rotating arms (46) fit with each other.

8. The material rack welding tool according to claim 6, characterized in that: The longitudinal positioning plate (43) is rotatably connected to the side wall of the mounting column (41), and the upper positioning mechanism further comprises a group of parallel transverse positioning plates (44), and transverse clamping members connected to the transverse positioning plates (44) for clamping a pair of transverse parallel side walls of the main column (13), and the transverse positioning plates (44) are plug-connected to the longitudinal positioning plates (43).

9. The material rack welding tool according to claim 6, characterized in that: The auxiliary column tooling assembly (5) comprises a support column (51) connected to the base, and a plurality of groups of longitudinal positioning mechanisms installed vertically on the support column (51); the longitudinal positioning mechanism comprises a rotating arm (52) rotatably connected to a side wall of the support column (51); and the rotating arm (52) is provided with a positioning pin (55) at one end away from the mounting column (41) for connecting to the auxiliary column (14).

10. The material rack welding tool according to claim 9, characterized in that: A bottom plate is mounted on the base, a cross keyway is machined on the bottom plate, and the bottom surfaces of the bottom mounting seats of the mounting column (41) and the support column (51) have a sliding block adapted to the cross keyway, and the sliding block is slidably connected to the cross keyway.

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