Automatic riveting equipment for shell

Abstract

The utility model belongs to the technical field of automatic assembling equipment, and discloses automatic shell riveting equipment which comprises a base assembly, a bottom plate supporting assembly, a side vertical plate positioning assembly, a cross beam positioning assembly and a riveting assembly, and the bottom plate supporting assembly comprises a bottom plate supporting piece used for supporting a bottom plate, a bottom plate positioning mechanism and a remodeling mechanism. The bottom plate positioning mechanism is arranged to position a bottom plate on the bottom plate supporting piece, the remodeling mechanism is connected to the bottom plate supporting piece, the remodeling mechanism is arranged to lift the bottom plate supporting piece in the vertical direction so as to adjust the height position of the bottom plate and adapt to side vertical plates, and the side vertical plate positioning assembly is arranged to position two side vertical plates on the bottom plate supporting piece. The cross beam positioning assembly is arranged to move the cross beam and position the cross beam on the two side vertical plates, and the riveting assembly is used for riveting the joints of the bottom plate and the side vertical plates and the joints of the side vertical plates and the cross beam. The automatic riveting equipment for the shell can be compatible with the assembly of a plurality of shell structures of different models, and is accurate in positioning and high in assembly efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic assembly equipment technical field especially relates to shell automatic riveting equipment. BACKGROUND

[0002] The washing machine shell is the important structure of forming the whole frame of the washing machine, and for the metal material shell, the connection of several plate materials constituting the shell is generally realized through riveting mode. The existing part washing machine shell is composed of the bottom plate, two side vertical plates, the back plate, the top plate and the front panel for installing the door body, and in order to increase the structural strength, the crossbeam reinforcing member is arranged between the top of the two side vertical plates. The first process of shell assembly is to rivet the bottom plate, two side vertical plates and crossbeam reinforcing member. The side vertical plate is a large area plate-shaped part, and the crossbeam reinforcing member is a slender rod-shaped part, which is difficult to position and easy to deform, so the existing shell assembly equipment is often divided into multiple work stations to assemble the above structural parts, and the product is transported between multiple work stations and clamped and positioned multiple times, so that the assembly efficiency is low. Moreover, due to the more washing machine structure models, the same work station is difficult to be compatible with different models and different sizes of shells, and the universality is poor. SUMMARY

[0003] The utility model discloses a shell automatic riveting equipment, which can solve the problems of the existing shell assembly equipment, such as needing to be divided into multiple work stations, low assembly efficiency, and being difficult to be compatible with different models and different sizes of shells, and poor universality.

[0004] To achieve this purpose, the utility model adopts the following technical scheme:

[0005] Provided is a shell automatic riveting device for assembling a shell structure, the shell structure comprising a bottom plate, two side vertical plates connected to both sides of the bottom plate, and a cross beam, the two ends of the cross beam being connected to the upper ends of the two side vertical plates away from the bottom plate, the shell structure having multiple models, the relative height of the bottom plate and the side vertical plate in different shell structures being different in the vertical direction, the shell automatic riveting device comprising a base assembly, a bottom plate supporting assembly, a side vertical plate positioning assembly, a cross beam positioning assembly, and a riveting assembly, all arranged on the base assembly, the bottom plate supporting assembly comprising a bottom plate supporting piece for supporting the bottom plate, a bottom plate positioning mechanism, and a model changing mechanism, the bottom plate positioning mechanism being arranged to position the bottom plate on the bottom plate supporting piece, the model changing mechanism being connected to the bottom plate supporting piece, the model changing mechanism being arranged to lift the bottom plate supporting piece in the vertical direction to adjust the height position of the bottom plate and adapt to the side vertical plate, the side vertical plate positioning assembly being arranged to position the two side vertical plates on the bottom plate supporting piece, the cross beam positioning assembly being arranged to move the cross beam and position the cross beam on the two side vertical plates, and the riveting assembly being used for riveting the connection between the bottom plate and the side vertical plate and the connection between the side vertical plate and the cross beam.

[0006] In one of the embodiments, the model changing mechanism comprises:

[0007] A bottom plate lifting driving piece, the output end of the bottom plate lifting driving piece being connected to the bottom plate supporting piece, the bottom plate lifting driving piece being used for driving the bottom plate supporting piece to lift in the vertical direction;

[0008] A moving supporting piece, the moving supporting piece having multiple supporting blocks arranged side by side, the multiple supporting blocks being different in height in the vertical direction, the moving supporting piece being movably arranged on the base assembly, the moving supporting piece being located below the bottom plate supporting piece, the moving supporting piece moving in the horizontal direction to make one of the multiple supporting blocks abut and support the bottom plate supporting piece.

[0009] In one of the embodiments, the bottom plate supporting piece has three height positions, the moving supporting piece has three supporting blocks arranged side by side and different in height, and the model changing mechanism further comprises a supporting piece driving mechanism, the supporting piece driving mechanism comprising two first driving cylinders connected in series, the two first driving cylinders being different in piston stroke, one of the two first driving cylinders being fixedly connected to the base assembly and having an output end connected to the other first driving cylinder, and the output end of the other first driving cylinder being connected to the moving supporting piece, at least one of the two first driving cylinders being actuated to make the three supporting blocks correspond to the bottom plate supporting piece of the three height positions, respectively.

[0010] In one of the embodiments, the riveting assembly includes a first riveter movably arranged on the floor support, the first riveter being configured to rivet the connection between the floor and the side stand, the side stand positioning assembly includes a first side stand transverse positioning mechanism, an output end of the first side stand transverse positioning mechanism has a first side stand positioning surface, the first riveter has a second side stand positioning surface, the output end of the first side stand transverse positioning mechanism and the first riveter are movable towards each other so that the first side stand positioning surface and the second side stand positioning surface abut two sides of the side stand respectively.

[0011] In one of the embodiments, the first side stand positioning surface and the second side stand positioning surface abut two sides of the bottom of the side stand respectively, the riveting assembly includes a second riveter movably arranged on the floor support, the second riveter being configured to rivet the connection between the side stand and the cross beam, the side stand positioning assembly further includes a second side stand transverse positioning mechanism, an output end of the second side stand transverse positioning mechanism has a third side stand positioning surface, the second riveter has a fourth side stand positioning surface, the output end of the second side stand transverse positioning mechanism and the second riveter are movable towards each other so that the third side stand positioning surface and the fourth side stand positioning surface abut two sides of the top of the side stand respectively.

[0012] In one of the embodiments, the edge of the side stand extending in the vertical direction has a vertical bent flange extending towards the other side stand, the cross beam includes a horizontally arranged cross beam part and two mounting parts connected to two ends of the cross beam part, the cross beam part and the two mounting parts form a U-shaped structure, the cross beam part is arranged between the two side stands, the mounting parts are attached to the vertical bent flanges, the fourth side stand positioning surface of the second riveter abuts the inner side of the side stand, a riveting part of the second riveter is configured to rivet the mounting part and the vertical bent flange, a riveter body of the second riveter is connected to the riveting part, the riveter body is capable of moving the riveting part reciprocally in the vertical direction to correspond to multiple riveting points on the vertical bent flange, the riveter body is arranged obliquely to avoid the vertical bent flange.

[0013] In one of the embodiments, the side stand positioning assembly further includes a side stand longitudinal positioning mechanism, the side stand longitudinal positioning mechanism is configured to position the side stand in a second direction, the second direction is perpendicular to the positioning direction of the first side stand transverse positioning mechanism.

[0014] In one of the embodiments, the bottom plate positioning mechanism comprises a bottom plate transverse positioning member, a bottom plate longitudinal positioning member and a bottom plate pressing member, the bottom plate transverse positioning member is used for positioning the bottom plate along a first direction, the bottom plate longitudinal positioning member is used for positioning the bottom plate along a second direction, and the bottom plate pressing member is used for pressing the bottom plate along a vertical direction, the first direction, the second direction and the vertical direction are perpendicular to each other.

[0015] In one of the embodiments, the crossbeam positioning assembly comprises a crossbeam support frame, a crossbeam positioning mechanism and a crossbeam moving mechanism, the crossbeam support frame has a support slot, the crossbeam is movably arranged in the support slot, the crossbeam positioning mechanism is used for positioning the crossbeam along a first direction and / or a second direction to adapt the output end of the crossbeam moving mechanism, and the crossbeam moving mechanism is used for moving the crossbeam to make the mounting portion of the crossbeam abut the vertical bending flange of the side stand plate.

[0016] In one of the embodiments, one of the crossbeam and the crossbeam moving mechanism is provided with a positioning slot, and the other is provided with a positioning pin, the positioning pin is inserted into the positioning slot to connect the crossbeam with the crossbeam moving mechanism; and / or,

[0017] The crossbeam moving mechanism has a first moving mode and a second moving mode, in the first moving mode, the crossbeam moving mechanism moves the crossbeam to be separated from the support slot, in the second moving mode, the crossbeam moving mechanism moves the crossbeam to move towards the side stand plate to make the mounting portion abut the vertical bending flange; and / or,

[0018] The crossbeam moving mechanism is a two-axis moving mechanism, the output end of the crossbeam moving mechanism can move along a vertical direction and / or a first direction, the support slot is located above the side of the side stand plate, and the output end of the crossbeam moving mechanism moves along the vertical direction and the first direction at the same time to make the moving path of the crossbeam form an acute angle with the vertical direction.

[0019] The utility model discloses the beneficial effects of:

[0020] The shell automatic riveting equipment provided by the utility model, which comprises a base assembly and a bottom plate supporting assembly, a side stand positioning assembly, a cross beam positioning assembly and a riveting assembly which are all arranged on the base assembly, the bottom plate supporting assembly comprises a bottom plate supporting piece for supporting a bottom plate, a bottom plate positioning mechanism and a change mechanism, the bottom plate positioning mechanism is arranged to position the bottom plate on the bottom plate supporting piece, the change mechanism is connected to the bottom plate supporting piece, and the change mechanism is arranged to lift the bottom plate supporting piece in the vertical direction to adjust the height position of the bottom plate and adapt to the side stand, when it is required to switch the model of the assembled shell structure, the change mechanism is actuated to lift the bottom plate supporting piece in the vertical direction to adjust the height position of the bottom plate, so that the bottom plate is adapted to the corresponding side stand, the same shell automatic riveting equipment is compatible with the assembly requirements of shell structures of multiple different models and different sizes, and has high applicability. The side stand positioning assembly is arranged to position two side stands on the bottom plate supporting piece, and the cross beam positioning assembly is arranged to move a cross beam and position the cross beam on the two side stands, so that the cross beam and the side stands can be well positioned and the risk of deformation is reduced. The riveting assembly is used for riveting the connecting portions of the bottom plate and the side stand and the connecting portions of the side stand and the cross beam. The bottom plate positioned by the bottom plate positioning mechanism serves as an assembly reference, the side stand positioning assembly positions the two side stands on the bottom plate supporting piece to ensure the position accuracy of the connecting portions of the side stands and the bottom plate, then the cross beam positioning assembly positions the cross beam on the side stands to ensure the position accuracy of the connecting portions of the cross beam and the side stands, and finally the riveting assembly is used for riveting assembly. The bottom plate, the two side stands and the cross beam do not need to be replaced and transported during the assembly process, and the assembly efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of the shell automatic riveting equipment provided by the utility model embodiment;

[0022] Figure 2 is a structural schematic view of the shell structure provided by the utility model embodiment;

[0023] Figure 3 is a partial structural schematic view of the bottom plate supporting assembly provided by the utility model embodiment;

[0024] Figure 4 is a partial structural side view of the bottom plate supporting assembly provided by the utility model embodiment;

[0025] Figure 5 is a partial structural schematic view of the riveting assembly provided by the utility model embodiment;

[0026] Figure 6 is a partial structural schematic view of the side stand positioning assembly provided by the utility model embodiment

[0027] Figure 7 is a structural schematic view of the second riveting clamp and the cross beam positioning assembly provided by the utility model embodiment.

[0028] In the drawings:

[0029] 1, base assembly;

[0030] 2, bottom plate support assembly; 21, bottom plate support; 22, bottom plate positioning mechanism; 222, bottom plate longitudinal positioning member; 223, bottom plate pressing member; 23, shape changing mechanism; 231, bottom plate lifting driving member; 232, moving support; 2321, support block; 233, support driving mechanism;

[0031] 3, side stand positioning assembly; 31, side stand first transverse positioning mechanism; 311, first side stand positioning surface; 32, side stand second transverse positioning mechanism; 321, third side stand positioning surface; 33, side stand longitudinal positioning mechanism;

[0032] 4, cross beam positioning assembly; 41, cross beam support frame; 411, support groove; 42, cross beam positioning mechanism; 43, cross beam moving mechanism; 431, positioning pin;

[0033] 5, riveting assembly; 51, first riveter; 511, second side stand positioning surface; 52, second riveter; 521, fourth side stand positioning surface; 522, riveting part; 523, riveter body;

[0034] 100, shell structure; 101, bottom plate; 102, side stand; 1021, vertical bending flange; 103, cross beam; 1031, cross beam part; 1032, mounting part; 1033, positioning groove. DETAILED DESCRIPTION

[0035] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] In the description of the utility model, it is necessary to explain that, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and moreover, the first feature is "above", "above" and "above" the second feature, which includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "below" and "below" the second feature, which includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0037] In the description of the utility model, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0038] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0039] The washing machine shell is an important structure forming the overall frame of the washing machine. For the metal material shell, the connection of several plate materials constituting the shell is generally realized by riveting. The existing part of the washing machine shell is composed of a bottom plate, two side standing plates, a back plate, a top plate and a front panel for installing a door body. In order to increase the structural strength, a cross beam reinforcing piece is arranged between the top portions of the two side standing plates. The first process of shell assembly is to rivet the bottom plate, the two side standing plates and the cross beam reinforcing piece. The side standing plate is a large area plate-shaped piece, and the cross beam reinforcing piece is an elongated rod-shaped piece, which is difficult to position and easy to deform. Therefore, the existing shell assembly equipment is often divided into multiple workstations to assemble the above structural pieces. The product is transported between multiple workstations and clamped and positioned multiple times, and the assembly efficiency is low. Moreover, due to the large number of washing machine structure models, it is difficult for the same workstation to be compatible with different models and different sizes of the shell, and the versatility is poor.

[0040] To solve the above problems, the shell automatic riveting equipment is provided.

[0041] As shown in Figure 1 and Figure 2 , the shell automatic riveting equipment of the embodiment is used for assembling the shell structure 100. The shell structure 100 includes a bottom plate 101, two side standing plates 102 connected on both sides of the bottom plate 101 and a cross beam 103. The two ends of the cross beam 103 are respectively connected to the upper ends of the two side standing plates 102 away from the bottom plate 101. In the embodiment, the shell structure 100 has multiple models. In different shell structures 100, the relative height of the bottom plate 101 and the side standing plate 102 in the vertical direction is different. The bottom plate 101 of part of the shell structure 100 is arranged on the upper side of the bottom flange of the side standing plate 102. The bottom plate 101 of part of the shell structure 100 is arranged on the lower side of the bottom flange of the side standing plate 102, or the bottom plate 101 of part of the shell structure 100 is provided with a flange for connecting the side standing plate 102, so as to form the relative height difference of the bottom plate 101 and the side standing plate 102 in the vertical direction.

[0042] The shell automatic riveting equipment comprises a base assembly 1, a bottom plate supporting assembly 2, a side stand positioning assembly 3, a cross beam positioning assembly 4 and a riveting assembly 5 which are all arranged on the base assembly 1. The bottom plate supporting assembly 2 comprises a bottom plate supporting piece 21 for supporting a bottom plate 101, a bottom plate positioning mechanism 22 and a model changing mechanism 23. The bottom plate positioning mechanism 22 is arranged to position the bottom plate 101 on the bottom plate supporting piece 21. The model changing mechanism 23 is connected to the bottom plate supporting piece 21 and is arranged to lift the bottom plate supporting piece 21 in the vertical direction to adjust the height position of the bottom plate 101 and adapt to a side stand 102. When it is necessary to switch the model of the assembled shell structure 100, the model changing mechanism 23 is actuated to lift the bottom plate supporting piece 21 in the vertical direction to adjust the height position of the bottom plate 101 so that it is adapted to the corresponding side stand 102. The same shell automatic riveting equipment is compatible with the assembly requirements of shell structures 100 of multiple different models and different sizes, and has strong applicability. The side stand positioning assembly 3 is arranged to position two side stands 102 on the bottom plate supporting piece 21, and the cross beam positioning assembly 4 is arranged to move a cross beam 103 and position the cross beam 103 on the two side stands 102. The cross beam 103 and the side stands 102 can be well positioned, reducing the risk of deformation. The riveting assembly 5 is used to rivet the connection between the bottom plate 101 and the side stand 102 and the connection between the side stand 102 and the cross beam 103. The bottom plate 101 positioned by the bottom plate positioning mechanism 22 serves as an assembly reference. The side stand positioning assembly 3 positions the two side stands 102 on the bottom plate supporting piece 21, ensuring the positional accuracy of the connection between the side stand 102 and the bottom plate 101. Then the cross beam positioning assembly 4 positions the cross beam 103 on the side stand 102, ensuring the positional accuracy of the connection between the cross beam 103 and the side stand 102. Finally, the riveting assembly 5 performs riveting assembly. The bottom plate 101, the two side stands 102 and the cross beam 103 do not need to be replaced and transported during the assembly process, improving the assembly efficiency.

[0043] As Figure 3As shown, the changing mechanism 23 comprises a bottom plate lifting driving element 231 and a moving support element 232. The output end of the bottom plate lifting driving element 231 is connected to the bottom plate support element 21, and the bottom plate lifting driving element 231 is used to drive the bottom plate support element 21 to lift along the vertical direction. After lifting, the bottom plate support element 21 needs to be stably supported to ensure the assembly precision, therefore, the moving support element 232 has a plurality of support blocks 2321 arranged side by side, the heights of the plurality of support blocks 2321 along the vertical direction are all different, and the moving support element 232 is movably arranged on the base assembly 1. The moving support element 232 is below the bottom plate support element 21, and the moving support element 232 moves along the horizontal direction to make one of the plurality of support blocks 2321 abut and support the bottom plate support element 21. The heights of the support blocks 2321 along the vertical direction are matched with the lifting heights required by the bottom plate support element 21, the moving support element 232 moves along the horizontal direction to make the corresponding support block 2321 support the bottom plate support element 21, and the changing and adjusting mode is simple. Preferably, the moving support element 232 moves in the horizontal plane, and the moving direction is perpendicular to the bottom plate support element 21. The bottom plate lifting driving element 231 can adopt a servo module, the servo module has high movement precision, can make the bottom plate support element 21 stay at any height position, and meets the size requirements of different models of the shell structure 100.

[0044] For example, in an embodiment, the bottom plate support element 21 has three height positions, as shown in FIG. 2. Figure 4 As shown, the moving support element 232 has three support blocks 2321 arranged side by side and having different heights. The changing mechanism 23 further comprises a support element driving mechanism 233, and the support element driving mechanism 233 comprises two first driving cylinders connected in series. The piston strokes of the two first driving cylinders are different, one of the two first driving cylinders is fixedly connected to the base assembly 1, the output end of the one first driving cylinder is connected to the other first driving cylinder, the output end of the other first driving cylinder is connected to the moving support element 232, and at least one of the two first driving cylinders acts to make the three support blocks 2321 correspond to the bottom plate support element 21 of the three height positions respectively. For example, when one of the first driving cylinders acts, the moving support element 232 has a first stroke S1 and makes one of the three support blocks 2321 abut the bottom plate support element 21; when the other first driving cylinder acts, the moving support element 232 has a second stroke S2 and makes another of the three support blocks 2321 abut the bottom plate support element 21; and when the two first driving cylinders simultaneously act, the stroke of the moving support element 232 is S1+S2, and the third of the three support blocks 2321 abuts the bottom plate support element 21. This structure of achieving different strokes through the series connection of the cylinders has a simple stroke adjusting mode, and the cost of the cylinders is slightly lower than that of the servo module, so that the assembly cost can be reduced.

[0045] The riveting assembly 5 includes a first riveting clamp 51 movably arranged on the bottom plate support 21, and the first riveting clamp 51 is used for riveting the connection between the bottom plate 101 and the side stand 102. The side stand positioning assembly 3 includes a first side stand transverse positioning mechanism 31, and the output end of the first side stand transverse positioning mechanism 31 has a first side stand positioning face 311. The first riveting clamp 51 has a second side stand positioning face 511, and the output end of the first side stand transverse positioning mechanism 31 and the first riveting clamp 51 can move towards each other, so that the first side stand positioning face 311 and the second side stand positioning face 511 abut the two sides of the side stand 102, respectively. The first riveting clamp 51 and the first side stand transverse positioning mechanism 31 are clamped on the two sides of the side stand 102, and the first riveting clamp 51 is ingeniously used to provide a one-side support, reduce the positioning clamps, simplify the structure of the shell automatic riveting equipment, and save the occupied space. Moreover, the support mode of the face contact is relatively stable, and the risk of clamping deformation of the side stand 102 is reduced.

[0046] The number of the first riveting clamp 51 is determined according to the riveting requirement of the bottom plate 101 and the side stand 102. In this embodiment, the bottom plate 101 and the side stand 102 need to be riveted at the four corners of the bottom plate 101, and therefore, the riveting assembly 5 includes four first riveting clamps 51, as shown in Figure 5 The four first riveting clamps 51 are arranged at the four corners of the bottom plate 101, respectively, and two first riveting clamps 51 are used for positioning the side stand 102 on one side to form two-point support for the side stand 102, which is relatively stable. The other two first riveting clamps 51 are used for positioning the side stand 102 on the other side, so that the two side stands 102 on both sides of the bottom plate 101 are both well supported, and the deformation is reduced.

[0047] Since the side stand 102 is a plate structure and is prone to deformation, the first side stand positioning face 311 and the second side stand positioning face 511 abut the two sides of the bottom of the side stand 102, respectively, and the riveting assembly 5 further includes a second riveting clamp 52 movably arranged on the bottom plate support 21. The second riveting clamp 52 is used for riveting the connection between the side stand 102 and the cross beam 103. The side stand positioning assembly 3 further includes a second side stand transverse positioning mechanism 32, and the output end of the second side stand transverse positioning mechanism 32 has a third side stand positioning face 321. The second riveting clamp 52 has a fourth side stand positioning face 521, and the output end of the second side stand transverse positioning mechanism 32 and the second riveting clamp 52 can move towards each other, so that the third side stand positioning face 321 and the fourth side stand positioning face 521 abut the two sides of the top of the side stand 102, respectively. In this way, the upper and lower ends of each side stand 102 are well supported and positioned, and the assembly process is simplified. The first riveting clamp 51 and the second riveting clamp 52 have completed the adjustment of the relative position in the process of supporting the side stand 102, and after the support is formed, riveting can be performed, without the need for riveting alignment again, thereby further improving the assembly efficiency.

[0048] The first rivet holder 51 and the second rivet holder 52 abut the inner side of the side stand 102 to adapt the position requirement of the riveting points. Correspondingly, the side stand first lateral positioning mechanism 31 and the side stand second lateral positioning mechanism 32 abut the outer side of the side stand 102. It can be understood that the side stand first lateral positioning mechanism 31 is provided with two groups, and the side stand second lateral positioning mechanism 32 is also provided with two groups, corresponding to the two side stands 102 respectively. In the embodiment, the bottom edge of the side stand 102 is folded inward to form a bottom flange, and the bottom flange abuts the bottom plate 101. The riveting points are distributed at the position where the bottom flange and the bottom plate 101 coincide. Therefore, the first rivet holder 51 and the second rivet holder 52 abut the inner side of the side stand 102 for positioning.

[0049] The edge of the side stand 102 extending in the vertical direction has a vertical bent flange 1021 extending towards the other side stand 102, which is used to connect the cross beam 103. The cross beam 103 includes a horizontally arranged cross beam part 1031 and a mounting part 1032 connected to both ends of the cross beam part 1031. The cross beam part 1031 and the two mounting parts 1032 form a U-shaped structure, the cross beam part 1031 is arranged between the two side stands 102, and the mounting part 1032 is attached to the vertical bent flange 1021. The mounting part 1032 and the vertical bent flange 1021 coincide to form a riveting point. The fourth side stand positioning surface 521 of the second rivet holder 52 abuts the inner side of the side stand 102, and the riveting part 522 of the second rivet holder 52 is used to rivet the riveting points on the mounting part 1032 and the vertical bent flange 1021. The rivet holder body 523 of the second rivet holder 52 is connected to the riveting part 522, and the rivet holder body 523 can drive the riveting part 522 to reciprocate in the vertical direction to correspond to the plurality of riveting points on the vertical bent flange 1021. In order to avoid the vertical bent flange 1021, the rivet holder body 523 is inclined to avoid the vertical bent flange 1021. In this way, during the reciprocating movement of the riveting part 522 in the vertical direction to correspond to the plurality of riveting points, the rivet holder body 523 will not contact the vertical bent flange 1021, avoiding interference.

[0050] As shown in Figure 6 The side stand positioning assembly 3 further includes a side stand longitudinal positioning mechanism 33 for positioning the side stand 102 in a second direction perpendicular to the positioning direction of the side stand first lateral positioning mechanism 31. Figure 1As shown, the left-right direction is the first direction, and the front-rear direction is the second direction. The side stand longitudinal positioning mechanism 33 positions the side stand 102 along the second direction, so that the side stand 102 is completely positioned in the horizontal direction. In the present embodiment, the side stand longitudinal positioning mechanism 33 is also provided with two sets, corresponding to the two side stands 102 respectively. A single side stand longitudinal positioning mechanism 33 has a positioning surface extending along the vertical direction, increasing the contact area with the side stand 102, and the positioning process is more stable, avoiding the side stand 102 from being skewed or tilted.

[0051] The first riveting tongs 51, the second riveting tongs 52, and the side stand first transverse positioning mechanism 31, the side stand second transverse positioning mechanism 32, and the side stand longitudinal positioning mechanism 33 can be driven by a servo module or an air cylinder, and the present embodiment is not specifically limited. The structure of the servo module or the air cylinder can be set according to the prior art.

[0052] The bottom plate positioning mechanism 22 includes a bottom plate transverse positioning member, a bottom plate longitudinal positioning member 222, and a bottom plate pressing member 223. The bottom plate transverse positioning member is used to position the bottom plate 101 along the first direction, the bottom plate longitudinal positioning member 222 is used to position the bottom plate 101 along the second direction, and the bottom plate pressing member 223 is used to press the bottom plate 101 along the vertical direction. The first direction, the second direction, and the vertical direction are perpendicular to each other in pairs.

[0053] Specifically, the robot (not shown in the figure) picks up the bottom plate 101 conveyed by the conveying line and places it on the bottom plate support member 21. The bottom plate transverse positioning member includes two transverse power members arranged on both sides of the bottom plate 101 along the first direction, which push against the bottom plate 101 in opposite directions to ensure the positional accuracy of the bottom plate 101 in the first direction. The bottom plate longitudinal positioning member 222 includes two longitudinal power members arranged at both ends of the bottom plate 101 along the second direction, which push against the bottom plate 101 in opposite directions to ensure the positional accuracy of the bottom plate 101 in the second direction. After the bottom plate 101 is accurately positioned in the horizontal plane, the bottom plate pressing member 223 is pressed against the bottom plate 101 along the vertical direction, so that the bottom plate 101 is completely constrained on the bottom plate support member 21.

[0054] In addition to vertical movement, the base plate pressing member 223 can also move in a second direction, thus creating a clearance. Initially, the base plate pressing member 223 is positioned away from the base plate support 21 where the base plate 101 is placed, facilitating the robot arm to place the base plate 101 onto the support 21. Only after the base plate lateral and longitudinal positioning members 222 have activated and the base plate 101 is accurately positioned in the horizontal plane will the base plate pressing member 223 activate, completely securing the base plate 101 to the support 21. Subsequently, the lateral and longitudinal positioning members 222 activate again, moving in the opposite direction away from the base plate 101, creating a clearance and facilitating the subsequent positioning of the side upright 102 in the first direction. This structure ensures both accurate positioning of the base plate 101 and ease of assembly.

[0055] It should be noted that, in one embodiment, the first lateral positioning mechanism 31 of the side plate can be the same structural component as the lateral positioning component of the bottom plate. Because the side plate 102 is relatively thin, the stroke difference between the first lateral positioning mechanism 31 of the side plate and the lateral positioning component of the bottom plate in the first direction is small, and the movement direction of the output end is the same. Therefore, the lateral positioning component of the bottom plate can be used as the first lateral positioning mechanism 31 of the side plate, which further simplifies the overall structure of the automatic riveting equipment for the housing.

[0056] The base plate transverse positioning component, the base plate longitudinal positioning component 222, and the base plate pressing component 223 can be driven by a servo module or a cylinder; this embodiment does not impose specific limitations. The structure of the servo module or cylinder can be set with reference to existing technology.

[0057] like Figure 7 As shown, the crossbeam positioning assembly 4 includes a crossbeam support frame 41, a crossbeam positioning mechanism 42, and a crossbeam moving mechanism 43. The crossbeam support frame 41 has a support groove 411, within which the crossbeam 103 can be movably placed. A robotic arm grasps the crossbeam 103 and places it within the support groove 411. The crossbeam positioning mechanism 42 is used to position the crossbeam 103 along a first direction and / or a second direction. The crossbeam 103 extends along the first direction and passes through the support groove 411. Therefore, the crossbeam positioning mechanism 42 includes a transverse positioning mechanism and a longitudinal positioning mechanism. The transverse positioning mechanism adjusts the position of the crossbeam 103 along the first direction, and the longitudinal positioning mechanism adjusts the position of the crossbeam support frame 41 along the second direction, thereby accurately positioning the crossbeam 103. After accurate positioning, the crossbeam 103 is adapted to the output end of the crossbeam moving mechanism 43. The output end of the crossbeam moving mechanism 43 is used to move the crossbeam 103 so that the mounting part 1032 of the crossbeam 103 fits against the vertical bending flange 1021 of the side plate 102.

[0058] The preliminary positioning of the cross beam 103 on the cross beam support frame 41 can reduce the positioning action of the cross beam moving mechanism 43 in the subsequent process, for example, the cross beam moving mechanism 43 only needs to adjust the position of the cross beam 103 in the height direction relative to the side stand 102, and does not need to adjust the position of the cross beam 103 relative to the side stand 102 in the first direction, thereby improving the assembly efficiency. The action of the cross beam positioning mechanism 42 can be performed simultaneously with the action of the bottom plate positioning mechanism 22 and the side stand positioning assembly 3, that is, the cross beam 103 is preliminarily positioned while the bottom plate 101 and the side stand 102 are precisely positioned.

[0059] In order to improve the connection convenience of the cross beam 103 and the output end of the cross beam moving mechanism 43, one of the cross beam 103 and the cross beam moving mechanism 43 is provided with a positioning groove 1033, and the other is provided with a positioning pin 431, the positioning pin 431 can be inserted into the positioning groove 1033, so that the cross beam 103 is connected to the cross beam moving mechanism 43. The axis of the positioning pin 431 extends in the second direction, and when the positioning pin 431 is inserted into the positioning groove 1033, the cross beam moving mechanism 43 can drive the cross beam 103 to move.

[0060] Specifically, the cross beam moving mechanism 43 has a first moving mode and a second moving mode. In the first moving mode, the cross beam moving mechanism 43 moves the cross beam 103 away from the support groove 411. In the present embodiment, in order to facilitate operation, the opening of the support groove 411 is upward, and the cross beam moving mechanism 43 moves upward in the vertical direction to drive the cross beam 103 to move away from the support groove 411. Subsequently, in the second moving mode, the cross beam moving mechanism 43 moves the cross beam 103 to move toward the side stand 102 to make the mounting portion 1032 abut against the vertically bent flange 1021.

[0061] The cross beam moving mechanism 43 is a two-axis moving mechanism, and the output end of the cross beam moving mechanism 43 can move in the vertical direction and / or the first direction. In the present embodiment, the support groove 411 is located above the side stand 102 on the side, avoiding interference with the action of the side stand positioning assembly 3. In the second moving mode, the output end of the cross beam moving mechanism 43 moves in the vertical direction and the first direction at the same time, so that the moving path of the cross beam 103 forms an acute angle with the vertical direction, that is, the moving path of the cross beam 103 is inclined relative to the horizontal plane, which can quickly abut against the side stand 102, thereby further improving the assembly efficiency.

[0062] The cross beam positioning mechanism 42 and the cross beam moving mechanism 43 can be driven by a servo module or an air cylinder, and the present embodiment does not make specific limitations. The structure of the servo module or the air cylinder can be set according to the prior art.

[0063] After the above-mentioned assembling of the bottom plate 101, the two side vertical plates 102 connected to the two sides of the bottom plate 101 and the cross beam 103 of the shell structure 100 is completed, the assembling of other structural members on the bottom plate support 21 in the present embodiment can be continued, or transferred to other work stations.

[0064] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to exhaust all the embodiments. Any modification, equivalent substitution and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. A shell automatic riveting device for assembling a shell structure (100), the shell structure (100) comprising a bottom plate (101), two side vertical plates (102) connected to both sides of the bottom plate (101), and a cross beam (103) having two ends connected to the upper ends of the two side vertical plates (102) away from the bottom plate (101), the shell structure (100) having multiple models, and the relative height of the bottom plate (101) and the side vertical plate (102) in the vertical direction being different in different shell structures (100), characterized in that, The shell automatic riveting equipment comprises a base assembly (1) and a bottom plate supporting assembly (2), a side stand positioning assembly (3), a cross beam positioning assembly (4) and a riveting assembly (5) which are all arranged on the base assembly (1), the bottom plate supporting assembly (2) comprises a bottom plate supporting piece (21) for supporting the bottom plate (101), a bottom plate positioning mechanism (22) and a type changing mechanism (23), the bottom plate positioning mechanism (22) is arranged to position the bottom plate (101) on the bottom plate supporting piece (21), the type changing mechanism (23) is connected to the bottom plate supporting piece (21), the type changing mechanism (23) is arranged to lift the bottom plate supporting piece (21) in the vertical direction to adjust the height position of the bottom plate (101) and adapt the side stand (102), the side stand positioning assembly (3) is arranged to position two side stands (102) on the bottom plate supporting piece (21), the cross beam positioning assembly (4) is arranged to move the cross beam (103) and position the cross beam (103) on the two side stands (102), and the riveting assembly (5) is used for riveting the connection between the bottom plate (101) and the side stand (102) and the connection between the side stand (102) and the cross beam (103).

2. The shell automatic riveting apparatus according to claim 1, characterized by, The type changing mechanism (23) comprises: a bottom plate lifting driving piece (231), an output end of the bottom plate lifting driving piece (231) is connected to the bottom plate supporting piece (21), and the bottom plate lifting driving piece (231) is used for driving the bottom plate supporting piece (21) to lift in the vertical direction; a moving supporting piece (232), the moving supporting piece (232) has a plurality of supporting blocks (2321) which are arranged side by side, the plurality of supporting blocks (2321) are different in height in the vertical direction, the moving supporting piece (232) is movably arranged on the base assembly (1), the moving supporting piece (232) is below the bottom plate supporting piece (21), and the moving supporting piece (232) moves in the horizontal direction to make one of the plurality of supporting blocks (2321) abut and support the bottom plate supporting piece (21).

3. The shell automatic riveting apparatus according to claim 2, characterized by, The bottom plate supporting piece (21) has three height positions, the moving supporting piece (232) has three supporting blocks (2321) which are arranged side by side and different in height, and the type changing mechanism (23) further comprises a supporting piece driving mechanism (233), the supporting piece driving mechanism (233) comprises two first driving cylinders which are connected in series, the piston strokes of the two first driving cylinders are different, one of the two first driving cylinders is fixedly connected to the base assembly (1), an output end of the other first driving cylinder is connected to the other first driving cylinder, an output end of the other first driving cylinder is connected to the moving supporting piece (232), and at least one of the two first driving cylinders acts to make the three supporting blocks (2321) correspond to the bottom plate supporting piece (21) of the three height positions respectively.

4. The shell automatic riveting apparatus according to claim 1, characterized by, The riveting assembly (5) comprises a first riveting clamp (51) movably arranged on the bottom plate support (21), the first riveting clamp (51) is used for riveting the connection between the bottom plate (101) and the side stand plate (102), the side stand plate positioning assembly (3) comprises a first side stand plate transverse positioning mechanism (31), the output end of the first side stand plate transverse positioning mechanism (31) is provided with a first side stand plate positioning surface (311), the first riveting clamp (51) is provided with a second side stand plate positioning surface (511), the output end of the first side stand plate transverse positioning mechanism (31) and the first riveting clamp (51) can move towards each other, so that the first side stand plate positioning surface (311) and the second side stand plate positioning surface (511) abut the two sides of the side stand plate (102) respectively.

5. The shell automatic riveting apparatus according to claim 4, characterized by, The first side stand plate positioning surface (311) and the second side stand plate positioning surface (511) abut the two sides of the bottom of the side stand plate (102) respectively, the riveting assembly (5) comprises a second riveting clamp (52) movably arranged on the bottom plate support (21), the second riveting clamp (52) is used for riveting the connection between the side stand plate (102) and the cross beam (103), the side stand plate positioning assembly (3) further comprises a second side stand plate transverse positioning mechanism (32), the output end of the second side stand plate transverse positioning mechanism (32) is provided with a third side stand plate positioning surface (321), the second riveting clamp (52) is provided with a fourth side stand plate positioning surface (521), the output end of the second side stand plate transverse positioning mechanism (32) and the second riveting clamp (52) can move towards each other, so that the third side stand plate positioning surface (321) and the fourth side stand plate positioning surface (521) abut the two sides of the top of the side stand plate (102) respectively.

6. The shell automatic riveting apparatus according to claim 5, wherein The edge of the side stand plate (102) extending in the vertical direction has a vertical bent flange (1021) extending towards the other side stand plate (102), the cross beam (103) comprises a horizontally arranged cross beam part (1031) and a mounting part (1032) connected to both ends of the cross beam part (1031), the cross beam part (1031) and the two mounting parts (1032) form a U-shaped structure, the cross beam part (1031) is arranged between the two side stand plates (102), the mounting part (1032) is attached to the vertical bent flange (1021), the fourth side stand plate positioning surface (521) of the second riveting clamp (52) abuts the inner side of the side stand plate (102), the riveting part (522) of the second riveting clamp (52) is used for riveting the mounting part (1032) and the vertical bent flange (1021), the riveting clamp body (523) of the second riveting clamp (52) is connected to the riveting part (522), the riveting clamp body (523) can drive the riveting part (522) to move reciprocatingly in the vertical direction to correspond to multiple riveting points on the vertical bent flange (1021), the riveting clamp body (523) is arranged obliquely to avoid the vertical bent flange (1021).

7. The shell automatic riveting apparatus according to claim 4, wherein The side stand positioning assembly (3) further comprises a side stand longitudinal positioning mechanism (33) for positioning the side stand (102) along a second direction, the second direction being perpendicular to the positioning direction of the side stand first lateral positioning mechanism (31).

8. The shell automatic riveting apparatus according to any one of claims 1 to 7, characterized by, The bottom plate positioning mechanism (22) comprises a bottom plate lateral positioning member for positioning the bottom plate (101) along a first direction, a bottom plate longitudinal positioning member (222) for positioning the bottom plate (101) along a second direction, and a bottom plate pressing member (223) for pressing the bottom plate (101) along a vertical direction, the first direction, the second direction and the vertical direction being perpendicular to each other in pairs.

9. The shell automatic riveting apparatus according to any one of claims 1 to 7, characterized by, The crossbeam positioning assembly (4) comprises a crossbeam support frame (41) having a support groove (411) in which the crossbeam (103) is movably placed, a crossbeam positioning mechanism (42) for positioning the crossbeam (103) along a first direction and / or a second direction to adapt the crossbeam (103) to the output end of a crossbeam moving mechanism (43), and the crossbeam moving mechanism (43) for moving the crossbeam (103) to make the mounting portion (1032) of the crossbeam (103) fit the vertical bending flange (1021) of the side stand (102).

10. The shell automatic riveting apparatus according to claim 9, wherein One of the crossbeam (103) and the crossbeam moving mechanism (43) is provided with a positioning groove (1033), and the other is provided with a positioning pin (431), the positioning pin (431) being capable of being inserted into the positioning groove (1033) to connect the crossbeam (103) to the crossbeam moving mechanism (43); and / or, The crossbeam moving mechanism (43) has a first moving mode and a second moving mode, in the first moving mode, the crossbeam moving mechanism (43) moves the crossbeam (103) away from the support groove (411), in the second moving mode, the crossbeam moving mechanism (43) moves the crossbeam (103) towards the side stand (102) to make the mounting portion (1032) abut against the vertical bending flange (1021); and / or, The crossbeam moving mechanism (43) is a two-axis moving mechanism, the output end of the crossbeam moving mechanism (43) being capable of moving along a vertical direction and / or a first direction, the support groove (411) being located above the side of the side stand (102), the output end of the crossbeam moving mechanism (43) simultaneously moving along the vertical direction and the first direction to make the moving path of the crossbeam (103) form an acute angle with the vertical direction.

Images