Display stand metal plate welding device

Abstract

The present application relates to the technical fields of display stand metal plate welding equipment, and particularly relates to a display stand metal plate welding device, which comprises a rack assembly, a rotating module, a welding module, a positioning base and a clamping module, the rotating module is fixedly connected with the rack assembly and has a rotating table, the welding module is fixedly connected with the rack assembly and has a welding part capable of moving in multiple degrees of freedom, the clamping module comprises a driving mechanism and two sets of clamping mechanisms, the driving mechanism is fixedly connected with the rotating table and has a moving table, the two sets of clamping mechanisms are symmetrically arranged with the positioning base as the center, one set of clamping mechanisms is fixedly connected with the rotating table, and the other set of clamping mechanisms is fixedly connected with the moving table. The display stand can be automatically welded through the rotation of the clamping module driven by the rotating module and the multiple-degree-of-freedom welding of the welding module, the welding efficiency of the display stand is improved, and the welding precision of the display stand is ensured.

Description

Technical Field

[0001] This invention relates to the field of display rack metal plate welding equipment, and more particularly to a display rack metal plate welding device. Background Technology

[0002] Display racks, as an important tool for product display, are widely used in shopping malls, exhibitions, retail stores and other scenarios.

[0003] like Figures 1 to 2 The display rack shown includes a support body and a ring body. The support body has a through groove that matches the ring body. The manufacturing process requires welding the ring body and the through groove together.

[0004] Currently, in the production process of display racks, due to the thinness of the display rack panels, it is impossible to accurately control the welding speed when welding manually. The high temperature generated during welding can easily lead to local thermal stress concentration in the support or ring metal plates, causing defects such as warping and deformation. In severe cases, secondary processing and correction are required, increasing production costs and time. Summary of the Invention

[0005] In view of this, the purpose of this invention is to provide a metal plate welding device for display racks, so as to solve the problem that during the welding of display racks, local thermal stress concentration in the support body or ring body is easily caused, resulting in defects such as warping and deformation.

[0006] To achieve the above objectives, the present invention provides a metal plate welding device for display racks, comprising: a frame assembly; a rotating module fixedly connected to the frame assembly, having a rotating platform capable of rotating about a vertical central axis; a welding module fixedly connected to the frame assembly, having a welding section capable of multi-degree-of-freedom movement; a positioning base fixedly connected to the rotating platform, having a positioning end for positioning a display rack support at one end facing away from the rotating platform; and a clamping module comprising a driving mechanism and two sets of clamping mechanisms. The driving mechanism is fixedly connected to the rotating platform and has a movable platform capable of moving towards or away from the positioning base. The two sets of clamping mechanisms are symmetrically arranged about the positioning base, one set of clamping mechanisms is fixedly connected to the rotating platform, and the other set of clamping mechanisms is fixedly connected to the movable platform. Each clamping mechanism has a clamping end for positioning a ring of the display rack, and a cooling channel is provided inside the clamping mechanism, the cooling channel having several air outlets penetrating the clamping end.

[0007] In an optional example, the clamping end has an end clamping surface that abuts against the end of the display rack ring, the clamping end has an extended clamping portion that extends toward the inner ring of the display rack ring, the extended clamping portion has an extended clamping surface that abuts against the inner ring of the display rack ring, and the air outlet is disposed on the extended clamping surface and the end clamping surface.

[0008] In an optional example, the clamping mechanism comprises a clamping base, an upper end of the clamping base is fixed with a connecting bracket, one end of the connecting bracket towards the positioning base is fixed with a positioning ring body one, one end of the positioning ring body one towards the direction away from the connecting bracket is insertedly fixed with a positioning ring body two.

[0009] In an optional example, the cooling flow channel comprises a main flow channel and a plurality of branch flow channels, the connecting bracket is fixed with a plurality of control portions, the control portion is provided with a sealing piece, the sealing piece is inserted into the corresponding branch flow channel and controls the communication between the branch flow channel and the main flow channel.

[0010] In an optional example, one end of the positioning ring body one towards the direction away from the connecting bracket is provided with an insertion slot, the positioning ring body two is insertedly fixed in the insertion slot, the bottom of the insertion slot is provided with a plurality of bottom air guide grooves, the bottom air guide grooves are provided with bottom through holes towards the direction close to the connecting bracket and penetrating through the positioning ring body one, the sealing piece is inserted into the bottom through hole, the end clamping surface is arranged at one end of the positioning ring body one towards the direction away from the connecting bracket, a plurality of air outlet grooves one are arranged in the insertion slot and penetrate through the positioning ring body one towards the direction away from the connecting bracket.

[0011] In an optional example, the extension clamping portion is arranged at one end of the positioning ring body two towards the direction away from the connecting bracket, a plurality of air outlet grooves two are arranged on the outer wall of the positioning ring body two and communicate with the air outlet grooves one, the air outlet grooves one and the air outlet grooves two communicate with the corresponding bottom air guide grooves and bottom through holes and combine to form the branch flow channels.

[0012] In an optional example, the connecting bracket comprises a main bracket body connected with the clamping base, the main bracket body is provided with a plurality of side brackets fixedly connected with the positioning ring body one, one end of the main bracket body towards the clamping base is provided with a connecting pipe, the main bracket body is provided with a main air channel, the side bracket is provided with a side air channel, the side air channel is provided with a side through hole penetrating through the side bracket, the sealing piece is inserted into the side through hole, the side through hole communicates with the bottom through hole, the side through hole, the side air channel and the main air channel communicate and combine to form the main flow channel.

[0013] In an optional example, the sealing member comprises a sealing column, the inner diameter of the side hole and the bottom hole is the same, the sealing column is inserted into the side hole in a sliding manner and can extend into the bottom hole, the sealing column is provided with a control air channel along the central axis direction, the control air channel penetrates the sealing column towards one end of the positioning ring body one, the outer wall of the sealing column is provided with a plurality of control air holes connected with the control air channel, the positioning ring body two is provided with a blocking block towards one end of the sealing column, the blocking block can be inserted into the control air channel and seal the control air channel, and the control part comprises a control telescopic cylinder fixedly connected with the side support, and the telescopic end of the control telescopic cylinder is fixedly connected with the sealing column.

[0014] In an optional example, the side hole is provided with an annular air groove matched with the control air hole, the annular air groove is connected with the side air channel, and the telescopic end of the control telescopic cylinder is connected with the sealing column in a threaded connection manner.

[0015] In an optional example, the side wall of the positioning base is fixedly provided with a plurality of side positioning blocks, and the positioning end is fixedly provided with a plurality of magnetic fixing members for fixing the support body of the display stand.

[0016] The beneficial effects of the present application are that the rotation of the clamping module is driven by the rotation module, the multi-degree-of-freedom welding of the welding module is matched, the automatic welding of the display stand is realized, the welding efficiency of the display stand is improved, the welding precision of the display stand is ensured, the welding area is protected in real time by using the cooling channel of the clamping mechanism, the welding quality is improved, the welding area of the display stand is cooled in real time by using low-temperature protective gas, the temperature of the metal plate of the display stand is effectively controlled, and the metal plate of the display stand is prevented from deforming due to high temperature. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only a part of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0018] Figure 1 A perspective view of the display stand;

[0019] Figure 2 A use state diagram of the display stand;

[0020] Figure 3 A front view of the embodiment of the present application;

[0021] Figure 4 A perspective view of the embodiment of the present application;

[0022] Figure 5 It is a perspective structural schematic view of the clamping module in the embodiment of the present application;

[0023] Figure 6 It is a perspective structural schematic view of the clamping module in the embodiment of the present application;

[0024] Figure 7 It is a perspective structural schematic view of the cooling flow channel in the embodiment of the present application;

[0025] Figure 8 It is a perspective structural schematic view of the clamping mechanism in the embodiment of the present application;

[0026] Figure 9 It is an exploded structural schematic view of the clamping mechanism in the embodiment of the present application;

[0027] Figure 10 It is an exploded structural schematic view of the clamping mechanism in the embodiment of the present application;

[0028] Figure 11 It is a perspective structural schematic view of the positioning ring body one in the embodiment of the present application;

[0029] Figure 12 It is a perspective structural schematic view of the positioning ring body two in the embodiment of the present application;

[0030] Figure 13 It is a perspective sectional view of the connecting support in the embodiment of the present application;

[0031] Figure 14 It is a perspective structural schematic view of the sealing member in the embodiment of the present application.

[0032] In the figure, the marks are: 1, rack assembly; 101, workbench surface; 2, rotating module; 201, rotating table; 3, welding module; 301, welding part; 4, positioning base; 401, positioning end; 41, side positioning block; 42, magnetic attraction fixing member; 5, clamping module; 51, driving mechanism; 511, driving telescopic cylinder; 512, driving guide rail; 513, driving sliding block; 52, moving table; 6, support base; 7, clamping mechanism; 701, clamping end; 7011, end clamping surface; 7012, extended clamping part; 7013, extended clamping surface; 702, cooling flow channel; 7021, main flow channel; 7022, branch flow channel; 703, air outlet; 71, clamping base; 72, connecting support; 721, main support body; 722, side support; 723, connecting pipe; 724, main air channel; 725, side air channel; 726, side through hole; 727, annular air groove; 73, positioning ring body one; 731, plug-in groove; 732, bottom air guide groove; 733, bottom through hole; 734, air outlet groove one; 735, plugging block; 74, positioning ring body two; 741, air outlet groove two; 75, control part; 76, sealing member; 761, control air channel; 762, control air hole. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0034] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] In one embodiment, please refer to Figures 3 to 6 As shown, the present invention provides a metal plate welding device for display racks, comprising: a frame assembly 1, a rotating module 2, a welding module 3, a positioning base 4, and a clamping module 5.

[0036] The frame assembly 1, which serves as the carrier of the device, has a worktable 101.

[0037] The rotating module 2 is fixedly connected to the frame assembly 1 by bolts, and has a rotating table 201 that can rotate about a vertical central axis. The worktable surface 101 has a through slot along the vertical direction, through which the rotating table 201 passes.

[0038] The welding module 3 is fixedly connected to the frame assembly 1 by bolts and has a welding part 301 that can move with multiple degrees of freedom. The welding part 301, which can move with multiple degrees of freedom, can perform high-precision welding on the display rack.

[0039] The positioning base 4 is fixedly connected with the rotating table 201, and an end thereof away from the rotating table 201 is provided with a positioning end 401 for positioning the support body of the display stand. The upper end of the rotating table 201 is fixedly connected with the support seat 6 through bolt connection, and the positioning base 4 and the clamping module 5 are fixedly connected with the support seat 6 through bolt connection. The positioning base 4 is used for positioning the display stand, so as to ensure the welding precision of the display stand. The middle part of the rotating table 201 is provided with a penetrating installation channel, and the bottom of the support seat 6 is fixedly connected with an electric slip ring. The electric slip ring is connected with the power supply through wiring connection, and the installation channel is convenient for installation of pipelines, wires and the like.

[0040] The clamping module 5 comprises a driving mechanism 51 and two groups of clamping mechanisms 7. The driving mechanism 51 is fixedly connected with the rotating table 201 and has a moving table 52 capable of moving towards or away from the positioning base 4. The two groups of clamping mechanisms 7 are symmetrically arranged with the positioning base 4 as the center. One group of clamping mechanisms 7 is fixedly connected with the rotating table 201, and the other group of clamping mechanisms 7 is fixedly connected with the moving table 52. The clamping mechanism 7 has a clamping end 701 for positioning the ring body of the display stand. The clamping mechanism 7 is internally provided with a cooling flow channel 702 having a plurality of gas outlets 703 penetrating the clamping end 701. The clamping end 701 of the clamping mechanism 7 fixedly connected with the rotating table 201 serves as the positioning of one side of the ring body of the display stand. Through the working of the driving mechanism 51, the moving table 52 is driven to move, and the moving table 52 drives the other group of clamping mechanisms 7 to move, so that the clamping end 701 thereof abuts against the end face of the other side of the ring body of the display stand, thereby fixing the ring body of the display stand. Meanwhile, the cooling flow channel 702 has an air inlet. The upper end of the support seat 6 is fixedly connected with a multi-way connector. One end of the multi-way connector is fixedly connected with a rotary joint. The rotary joint extends into the installation channel. The rotary joint is connected with an external gas supply device through pipeline connection. The air inlet is connected with the multi-way connector through hose connection. The gas supply device is used for providing protective gas of a set temperature, such as helium, argon and the like.

[0041] Specifically, the present example realizes automatic welding of the display stand by rotating the clamping module 5 through the rotating module 2 and cooperating with the multi-degree-of-freedom welding of the welding module 3, improves the welding efficiency of the display stand, ensures the welding precision of the display stand, protects the welding area in real time through the cooling flow channel 702 of the clamping mechanism 7, improves the welding quality, and cools the welding area of the display stand in real time through the low-temperature protective gas, effectively controls the temperature of the metal plate of the display stand, and avoids deformation of the metal plate of the display stand due to high temperature.

[0042] In an optional example, please refer to Figures 3 to 8As shown, the clamping end 701 has an end clamping surface 7011 abutting against the end of the showcase ring body, the clamping end 701 has an extending clamping portion 7012 extending towards the inner circle of the showcase ring body, the extending clamping portion 7012 has an extending clamping surface 7013 abutting against the inner circle of the showcase ring body, and the air outlet 703 is arranged on the extending clamping surface 7013 and the end clamping surface 7011.

[0043] Specifically, in the present example, the end clamping surface 7011 directly contacts the end of the showcase ring body, which can provide basic support for the showcase ring body and prevent the ring body from sliding or moving during welding of the showcase; the extending clamping surface 7013 extends towards the inner circle of the ring body, which increases the contact area with the ring body, further fixes the structure of the ring body, and avoids welding deviation caused by local deformation of the showcase due to heat; and the air outlet 703 is distributed on the end clamping surface 7011 and the extending clamping surface 7013, which can not only protect the weld, but also locally cool the welding area, thereby reducing metal shrinkage deformation caused by thermal stress during welding of the showcase.

[0044] In an optional example, please refer to Figures 3 to 8 As shown, the clamping mechanism 7 includes a clamping base 71, the upper end of the clamping base 71 is fixed with a connecting bracket 72 by screw connection, one end of the connecting bracket 72 towards the positioning base 4 is fixed with a positioning ring body one 73 by screw connection, and one end of the positioning ring body one 73 away from the connecting bracket 72 is fixed with a positioning ring body two 74 by screw connection.

[0045] Specifically, the present example adopts a modular structure design, the positioning ring body one 73 and the positioning ring body two 74 are used in combination, which reduces the manufacturing difficulty and cost of the clamping mechanism 7, and the positioning ring body one 73 and the positioning ring body two 74 are designed to be replaceable, which meets the welding needs of different specifications of the showcase, and further reduces the manufacturing cost of the showcase.

[0046] In an optional example, please refer to Figures 3 to 8 As shown, the cooling flow channel 702 includes a main flow channel 7021 and a plurality of branch flow channels 7022, the connecting bracket 72 is fixed with a plurality of control portions 75, the control portion 75 has a sealing element 76, the sealing element 76 is inserted into the corresponding branch flow channel 7022, and the communication between the branch flow channel 7022 and the main flow channel 7021 is controlled.

[0047] Specifically, the sealing element 76 of the control portion 75 can independently open or close or adjust the flow of the branch flow channel 7022, the flow of the protective gas can be adjusted according to the welding process, the use of the protective gas is saved, the flow of the cooling medium of different branch flow channels 7022 is dynamically adjusted, the cooling rate distribution is optimized, stress concentration caused by uneven cooling is avoided, and the mechanical properties and structural stability of the welding seam of the showcase are improved.

[0048] In an optional example, referring to Figures 3 to 11 As shown, the positioning ring body one 73 is provided with a plug-in slot 731 at one end away from the connecting bracket 72, the positioning ring body two 74 is plugged and fixed in the plug-in slot 731, the bottom of the plug-in slot 731 is provided with a plurality of bottom air guide grooves 732, the bottom air guide grooves 732 are provided with a bottom through hole 733 penetrating the positioning ring body one 73 in the direction close to the connecting bracket 72, the sealing element 76 is plugged in the bottom through hole 733, the end clamping surface 7011 is arranged at one end of the positioning ring body one 73 in the direction away from the connecting bracket 72, a plurality of air outlet grooves one 734 are arranged in the plug-in slot 731, and the air outlet grooves one 734 penetrate the positioning ring body one 73 in the direction away from the connecting bracket 72.

[0049] Specifically, the plug-in and fixed structure of the positioning ring body one 73 and the positioning ring body two 74 is adopted to realize double positioning in the axial and circumferential directions, ensure the assembly precision and connection stability of the clamping mechanism 7, and the combination design of the sealing element 76, the bottom air guide groove 732 and the bottom through hole 733 allows the gas to flow in a specific direction while ensuring the sealing of the inside of the positioning ring body, reduces the number of parts of the clamping mechanism 7, reduces the overall volume of the clamping mechanism 7, and reduces the assembly complexity of the clamping mechanism 7.

[0050] In an optional example, referring to Figures 3 to 12 As shown, the extension clamping part 7012 is arranged at one end of the positioning ring body two 74 in the direction away from the connecting bracket 72, a plurality of air outlet grooves two 741 are arranged on the outer wall of the positioning ring body two 74 and communicated with the air outlet grooves one 734, the air outlet grooves one 734, the air outlet grooves two 741, the corresponding bottom air guide grooves 732 and the bottom through holes 733 are communicated and combined to form a branch flow channel 7022.

[0051] Specifically, the air outlet grooves two 741 are arranged to cool the inner wall of the showcase ring body, reduce the shrinkage deformation of the showcase caused by thermal stress during welding of the showcase, and the extension clamping part 7012 is directly arranged at the distal end of the positioning ring body two 74, which increases the contact area with the showcase and significantly improves the axial and circumferential fixing ability of the connecting part.

[0052] In an optional example, referring to Figures 3 to 14As shown, the connecting bracket 72 comprises a main frame body 721 connected with the clamping base 71, the main frame body 721 is provided with a plurality of side supports 722 fixedly connected with the positioning ring body 73 by means of bolt connection, one end of the main frame body 721 towards the clamping base 71 is provided with a connecting pipe 723, the main frame body 721 is provided with a main air channel 724, the side supports 722 are provided with side air channels 725, the side air channels 725 are provided with side through holes 726 penetrating through the side supports 722, the sealing element 76 is inserted into the side through holes 726, the side through holes 726 are in communication with the bottom through hole 733, the side through holes 726, the side air channels 725 and the main air channel 724 are in communication and combined to form the main flow channel 7021.

[0053] Specifically, the present example reduces the manufacturing difficulty and cost of the connecting bracket 72 through the modular structure design, while ensuring the sealing of the connecting bracket 72, reduces the number and weight of the parts of the connecting bracket 72, and reduces the assembly difficulty and cost of the connecting bracket 72.

[0054] In an optional example, please refer to Figures 3 to 14 As shown, the sealing element 76 comprises a sealing column, the inner diameters of the side through holes 726 and the bottom through hole 733 are the same, the sealing column is inserted into the side through holes 726 by sliding and can extend into the bottom through hole 733, the sealing column is provided with a control air channel 761 along the central axis direction, one end of the control air channel 761 towards the positioning ring body 73 penetrates through the sealing column, a plurality of control air holes 762 in communication with the control air channel 761 are formed on the outer wall of the sealing column, the positioning ring body 74 is provided with a blocking block 735 towards the sealing column, the blocking block 735 can be inserted into the control air channel 761 and seal the control air channel 761, the control part 75 comprises a control telescopic cylinder fixedly connected with the side support 722 by means of bolt connection, and the telescopic end of the control telescopic cylinder is fixedly connected with the sealing column. Through the operation of the control telescopic cylinder, the sealing column is driven to slide, and the communication between the control branch flow channel 7022 and the main flow channel 7021 is controlled.

[0055] Specifically, the present example drives the sealing column to slide in the side through hole 726 through the control telescopic cylinder, can adjust the extension length of the sealing column in real time, dynamically controls the sealing state of the bottom through hole 733, can flexibly switch on and off according to the actual working condition, meets the control requirement, and has the advantages of simple structure, quick installation and convenient disassembly and assembly of the clamping mechanism 7.

[0056] In an optional example, please refer to Figures 3 to 14 As shown, the side through hole 726 is provided with an annular air groove 727 matched with the control air hole 762, the annular air groove 727 is in communication with the side air channel 725, and the telescopic end of the control telescopic cylinder is connected with the sealing column by means of thread connection.

[0057] Specifically, the annular air groove 727 formed in the side through hole 726 facilitates the flow of the air hole 762 and the side air duct 725, ensures the stable flow of the protective air flow, and the threaded hole is formed in the end of the sealing column towards the control telescopic cylinder, and the telescopic end of the control telescopic cylinder is rotatably inserted into the threaded hole in a threaded connection mode, so that the sealing column is quickly assembled.

[0058] In an optional example, referring to Figures 3 to 14 As shown in the figure, the side wall of the positioning base 4 is fixed with a plurality of side positioning blocks 41, and the positioning end 401 is fixed with a plurality of magnetic fixing members 42 for fixing the display stand support. The magnetic fixing member 42 can be an electromagnet, which is connected to the electric slip ring in a wiring connection mode.

[0059] Specifically, the side positioning block 41 positions the side wall of the display stand support, which facilitates replacement and maintenance after wear, and the magnetic fixing member 42 fixes the display stand, which facilitates quick fixing of the display stand.

[0060] In an optional example, referring to Figures 3 to 14 As shown in the figure, the driving mechanism 51 includes a driving telescopic cylinder 511, a driving guide rail 512 and a driving sliding block 513. The driving guide rail 512 is fixed to the upper end of the support seat 6, the driving sliding block 513 is fixed to the lower end of the moving table 52 in a bolt connection mode, the driving sliding block 513 is sleeved on the outer wall of the driving guide rail 512 in a sliding mode, the driving telescopic cylinder 511 is fixedly connected with the support seat 6 in a bolt connection mode, and the telescopic end of the driving telescopic cylinder 511 is fixedly connected with the moving table 52 in a bolt connection mode. The driving telescopic cylinder 511 can be electrically controlled and connected to the electric slip ring in a wiring connection mode.

[0061] In general, the present application rotates the clamping module 5 by the rotating module 2, cooperates with the multi-degree-of-freedom welding of the welding module 3, realizes automatic welding of the display stand, improves the welding efficiency of the display stand, ensures the welding precision of the display stand, protects the welding area in real time by the cooling channel 702 of the clamping mechanism 7, improves the welding quality, effectively controls the temperature of the metal plate of the display stand, avoids deformation of the metal plate of the display stand due to high temperature, and adopts a modular structure design, which effectively reduces the manufacturing difficulty and cost of the welding device.

[0062] Those skilled in the art will understand that the above discussion of any embodiment is only exemplary and is not intended to limit the scope of the present application (including claims) to these examples; under the idea of the present application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of brevity.

[0063] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such alternatives, modifications, equivalents, improvements and the like are intended to be encompassed by the present application.

Claims

1. A display rack sheet metal welding apparatus characterized by comprising: The utility model relates to a kind of display stand production line, including: Frame assembly (1); Rotary module (2), with the frame assembly (1) fixed connection, with the rotary table (201) of being able to take vertical as central axis rotates; Welding module (3), with the frame assembly (1) fixed connection, with the welding portion (301) of being able to move multiple degrees of freedom; Positioning base (4), with the rotary table (201) fixed connection, its end away from rotary table (201) is opened with the positioning end (401) for positioning display stand support body; Clamping module (5), including driving mechanism (51), two groups of clamping mechanism (7), the driving mechanism (51) with rotary table (201) fixed connection, the driving mechanism (51) has a mobile platform (52) that can be moved towards or away from the direction of positioning base (4), two groups of the clamping mechanism (7) are symmetrically arranged with positioning base (4) as center, a group of the clamping mechanism (7) with rotary table (201) fixed connection, another group of the clamping mechanism (7) with mobile platform (52) fixed connection, the clamping mechanism (7) has the clamping end (701) for positioning display stand ring body, the clamping mechanism (7) is provided with cooling flow channel (702) inside, the cooling flow channel (702) has several gas outlets (703) that pass through clamping end (701); The clamping end (701) has end clamping surface (7011) that is in contact with the end of display stand ring body, the clamping end (701) has the extension clamping portion (7012) that extends towards the inner ring of display stand ring body, the extension clamping portion (7012) has extension clamping surface (7013) that is in contact with the inner ring of display stand ring body, the gas outlet (703) is arranged on extension clamping surface (7013) and end clamping surface (7011); The clamping mechanism (7) includes clamping base (71), the upper end of the clamping base (71) is fixed with connecting bracket (72), one end of the connecting bracket (72) towards positioning base (4) direction is fixed with positioning ring body one (73), one end of the positioning ring body one (73) towards away from connecting bracket (72) direction is insertedly connected and fixed with positioning ring body two (74); The cooling flow channel (702) includes main flow channel (7021) and several branch flow channels (7022), the connecting bracket (72) is fixed with several control portions (75), the control portion (75) has sealing element (76), the sealing element (76) is inserted in corresponding branch flow channel (7022) and controls the communication of branch flow channel (7022) and main flow channel (7021); The positioning ring body one (73) is provided with a plug-in slot (731) at one end away from the connecting support (72), the positioning ring body two (74) is plugged and fixed in the plug-in slot (731), the bottom of the plug-in slot (731) is provided with a plurality of bottom air guide grooves (732), the bottom air guide grooves (732) are provided with a bottom through hole (733) penetrating the positioning ring body one (73) and facing the direction close to the connecting support (72), the sealing element (76) is plugged in the bottom through hole (733), the end clamping surface (7011) is arranged at one end of the positioning ring body one (73) and facing away from the connecting support (72), a plurality of air outlet grooves one (734) are arranged in the plug-in slot (731) and penetrating the positioning ring body one (73) and facing away from the connecting support (72).

2. The display rack sheet metal welding apparatus of claim 1, wherein, The extending clamping part (7012) is arranged at one end of the positioning ring body two (74) and facing away from the connecting support (72), a plurality of air outlet grooves two (741) are arranged on the outer wall of the positioning ring body two (74) and communicating with the air outlet grooves one (734), the air outlet grooves one (734) and the air outlet grooves two (741) communicate with the corresponding bottom air guide grooves (732) and bottom through holes (733) and combine to form a branch flow channel (7022).

3. The display rack sheet metal welding apparatus of claim 2, wherein, The connecting support (72) comprises a main frame body (721) connected with the clamping base (71), the main frame body (721) is provided with a plurality of side supports (722) fixedly connected with the positioning ring body one (73), the main frame body (721) is provided with a connecting pipe (723) at one end facing the clamping base (71), the main frame body (721) is provided with a main air channel (724), the side supports (722) are provided with side air channels (725), the side air channels (725) are provided with side through holes (726) penetrating the side supports (722), the sealing element (76) is plugged in the side through holes (726), the side through holes (726) communicate with the bottom through holes (733), the side through holes (726), the side air channels (725) and the main air channel (724) communicate and combine to form a main flow channel (7021).

4. The apparatus of claim 3, wherein the metal plate welding device is a display stand metal plate welding device. The sealing piece (76) comprises a sealing column, the inner diameter of the side through hole (726) is same as that of the bottom through hole (733), the sealing column is inserted into the side through hole (726) in a sliding mode and can extend into the bottom through hole (733), the sealing column is provided with a control air channel (761) along the central axis direction, the control air channel (761) penetrates the sealing column towards one end of the positioning ring body one (73), a plurality of control air holes (762) are formed in the outer wall of the sealing column and are communicated with the control air channel (761), the positioning ring body two (74) is provided with a blocking block (735) towards one end of the sealing column, the blocking block (735) can be inserted into the control air channel (761) and seal the control air channel (761), and the control part (75) comprises a control telescopic cylinder fixedly connected with the side support (722), and the telescopic end of the control telescopic cylinder is fixedly connected with the sealing column.

5. The apparatus of claim 4, wherein: The side through hole (726) is provided with an annular air groove (727) matched with the control air hole (762), the annular air groove (727) is communicated with the side air channel (725), and the telescopic end of the control telescopic cylinder is connected with the sealing column in a threaded mode.

6. The apparatus of claim 1, wherein: The side wall of the positioning base (4) is fixedly provided with a plurality of side positioning blocks (41), and the positioning end (401) is fixedly provided with a plurality of magnetic fixing pieces (42) for fixing the support body of the display stand.

Images