Automatic welding device for storage rack frame

Abstract

The invention relates to the technical field of welding devices, in particular to an automatic welding device for a storage rack framework, which comprises a welding table, a protective cover is fixedly mounted at the top of the welding table, supporting plates are fixedly mounted at the left end and the right end of the top of the welding table, and movable sliding tables are slidably connected to the tops of the two supporting plates. Two sets of movable sliding tables are fixedly installed on the inner side of the protective cover, storage tables are fixedly installed on the tops of the two sets of movable sliding tables, a frame assembly is placed on the tops of the storage tables, a welding frame is fixedly installed on the inner side of the protective cover and located above the storage tables, a welding head is fixedly installed on the welding frame, and the welding device further comprises a positioning mechanism which is fixedly installed in the storage tables. Compared with an existing welding mode of the storage rack frame, the overall welding quality and safety of the automatic welding device of the storage rack frame can be improved through design, meanwhile, the automation degree of the welding process is improved, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding devices, and in particular to an automatic welding device for a rack frame. Background Art

[0002] When the storage rack is produced, the cross beams and longitudinal beams of multiple frames are first welded into a frame, and then the multiple frames are assembled into the storage rack. During the welding process, the accuracy of the welding positioning becomes an important factor in the performance of the frame.

[0003] At present, when welding the frame of a storage rack, manual welding is usually performed manually. When welding, the cross beams and longitudinal beams of the frame need to be placed flat on the welding platform and fixed before welding. The existing technology requires multiple adjustments and alignments when fixing the cross beams and longitudinal beams. There is no perfect positioning device, and a certain displacement deviation will occur during the welding process, causing some structures of the frame to tilt or misalign, reducing the overall performance of the frame or directly producing unqualified frames, poor welding quality, and increased production costs. At the same time, the overall welding process has a low degree of automation and a long production cycle, which further reduces production efficiency.

[0004] Therefore, it is particularly important to design an automatic welding device for the rack frame to solve the above-mentioned defects. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention designs an automated welding device for a rack frame, which aims to solve the technical problems that when welding the rack frame in the prior art, manual welding is usually performed by manual cooperation, the welding quality is poor, the production cost is increased, and at the same time, the overall welding process has a low degree of automation and a long production cycle, which further reduces the production efficiency.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An automated welding device for a rack frame, comprising a welding table, a protective cover fixedly installed on the top of the welding table, support plates fixedly installed on both left and right ends of the top of the welding table, two groups of support plates are slidably connected to the tops of movable slides, two groups of movable slides are fixedly installed on the tops of the movable slides, a rack is placed on the top of the rack, a frame assembly is placed, a welding frame is fixedly installed on the inner side of the protective cover and above the rack, a welding head is fixedly installed on the welding frame, and further comprising:

[0008] A positioning mechanism is fixedly installed inside the storage table and is used for welding positioning of the frame assembly.

[0009] As a preferred solution of the present invention, movable seats are fixedly installed at the four corners of the bottom of the welding table, multiple groups of the bottoms of the movable seats are rotatably connected to movable wheels, and multiple groups of the bottoms of the movable seats and the outer sides of the movable wheels are threadedly connected to support feet.

[0010] As a preferred solution of the present invention, a waste discharge trough is provided on the inner side of the welding table, a partition net is fixedly installed on the top of the waste discharge trough, and a waste discharge port is provided at a position corresponding to the waste discharge trough on the front side of the welding table.

[0011] As a preferred solution of the present invention, protective doors are slidably connected to the left and right ends of the front side of the protective cover, and first cylinders are fixedly installed on the inner side of the protective cover and above the two groups of protective doors. The driving ends of the two groups of the first cylinders are fixedly connected to the protective doors through connecting blocks, and two groups of rollers are fixedly connected between the left and right sides of the two groups of protective doors and the protective cover.

[0012] As a preferred solution of the present invention, guide rails are fixedly installed on the left and right ends of the top of the support plate, the bottom of the movable slide is slidably connected to the guide rails through a slide seat, a motor is fixedly installed at the front end of the top of the support plate and between the two sets of guide rails, a screw rod is fixedly installed on the driving end of the motor, the rear end of the screw rod is rotatably connected to the support plate through a fixed block, and the middle of the bottom of the movable slide is threadedly connected to the movable slide through a moving block.

[0013] As a preferred solution of the present invention, the storage table is positioned and fixedly connected to a positioning boss on the inner side of the frame assembly. The frame assembly consists of two groups of cross beams, two groups of longitudinal beams and multiple groups of reinforcing ribs. The two groups of cross beams are placed on the front and rear sides of the positioning boss, the two groups of longitudinal beams are placed on the left and right sides of the positioning boss, and the multiple groups of reinforcing ribs are respectively placed at the connection between the cross beams and the longitudinal beams and located on the top of the positioning boss.

[0014] As a preferred solution of the present invention, an X-axis moving module is provided on the top of the welding frame, a Y-axis moving module is provided on the X-axis moving module, a Z-axis moving module is provided on the front of the Y-axis moving module, and the welding head is fixedly installed on the front of the Z-axis moving module.

[0015] As a preferred solution of the present invention, the positioning mechanism includes a fixed plate fixedly installed at the front end of the top of the storage platform, the rear end of the top of the storage platform is slidably connected to the first movable plate, and the left and right ends of the top of the storage platform are slidably connected to the second movable plate, the interior of the storage platform is provided with an active cavity, the interior of the storage platform is slidably connected with a connecting rod, the outside of the connecting rod and the inside of the active cavity is fixedly connected with a fixed sleeve, the outside of the connecting rod and the back of the fixed sleeve is provided with a spring, the middle of the bottom of the first movable plate is fixedly connected to the rear end of the connecting rod through a first slider, the middle of the bottoms of the two groups of the second movable plates are fixedly connected to the second slider, the two groups of the second sliders are connected to the fixed sleeve through a transmission rod, the outside of the connecting rod and the front of the fixed sleeve are fixedly connected with a buffer block, the front end of the top of the movable slide is fixedly installed with a second cylinder, and the driving end of the second cylinder is fixedly connected to the front end of the connecting rod.

[0016] As a preferred solution of the present invention, three groups of L-shaped clamps are fixedly installed on the top of the fixed plate, the first movable plate and the second movable plate, and the L-shaped clamps are fixedly connected to the fixed plate, the first movable plate and the second movable plate by bolts, and the inner side of the L-shaped clamps is fixedly connected with a hard rubber pad.

[0017] As a preferred solution of the present invention, both ends of the first movable plate and the second movable plate are slidably connected to the storage table through a sliding groove, both ends of the transmission rod are rotationally connected to the fixed sleeve and the second slider respectively, and the buffer block is a hard rubber block.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the present invention, through the coordinated design of the protective cover, the movable slide, the storage table, the welding frame and the positioning mechanism, when welding the frame assembly, first start the first cylinder above the protective door to lift one set of protective doors, then place the frame assembly on the storage table and fix it, then send the frame assembly into the inner side of the protective cover through the movable slide, and through the mutual cooperation of the X-axis moving module, the Y-axis moving module and the Z-axis moving module on the welding frame, flexibly move the welding head to automatically weld the frame assembly, then lower the protective door to prevent the welding from affecting the manual work, thereby improving the safety of the welding process, and then raise another set of protective doors and then the other set of frame assembly The frame assembly is sent into the inner side of the protective cover for welding. During the lifting process of the protective door, the roller assists in rolling to ensure the stable movement of the protective door. During the operation, the top welding of the first group of frame assemblies is completed. At this time, the protective door is opened and pushed out to turn the entire frame assembly over, and then the turned frame assembly is sent in for welding the bottom. During this operation, the corresponding welding of the top of the second group of frame assemblies is completed and pushed out from the inner side of the protective cover. At this time, it is turned over again. This process is repeated, so that the welding quality can be guaranteed while the frame assembly is welded continuously, thereby improving the automation of the welding process and greatly improving the production efficiency.

[0020] 2. In the present invention, through the coordinated design of the storage table and the positioning mechanism, after the frame assembly is placed on the storage table, the return stroke of the second cylinder is started, thereby pulling the connecting rod to move forward, and the first slider is driven under the connection of the connecting rod, and the first movable plate is pulled toward the back side of the frame assembly through the first slider, and the front and rear sides of the frame assembly are fixed in cooperation with the fixed plate at the front end of the top of the storage table, and at the same time, the fixing sleeve is driven to move when the connecting rod moves, and the two groups of second sliders are driven at the same time under the transmission of the transmission rod, and the two groups of second movable plates are pulled to fix the left and right sides of the frame assembly respectively, thereby completing the fixation of the outer side of the frame assembly, thereby avoiding deviations in the welding process and improving the quality of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the protective cover structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure after the frame assembly of the present invention is fixed;

[0024] Figure 4 This is a schematic diagram of the top structure of the storage table of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the framework assembly of the present invention;

[0026] Figure 6This is a schematic diagram of the top structure of the support plate of the present invention;

[0027] Figure 7 This is a schematic diagram of the welding frame structure of the present invention;

[0028] Figure 8 It is a schematic diagram of the positioning mechanism structure of the present invention.

[0029] In the figure: 1. welding table; 101. moving seat; 102. waste discharge trough; 103. partition net; 104. waste discharge port; 2. protective cover; 201. protective door; 202. first cylinder; 203. connecting block; 204. roller; 3. support plate; 301. guide rail; 302. slide seat; 303. motor; 304. lead screw; 305. fixed block; 306. moving block; 4. moving slide; 5. storage table; 501. positioning boss; 6. frame assembly; 7. welding frame; 701, X-axis moving module; 702, Y-axis moving module; 703, Z-axis moving module; 8, welding head; 9, positioning mechanism; 901, fixed plate; 902, first moving plate; 903, second moving plate; 904, movable cavity; 905, connecting rod; 906, fixed sleeve; 907, spring; 908, first slider; 909, second slider; 910, transmission rod; 911, buffer block; 912, second cylinder; 913, L-shaped clamp block; 914, slide groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Example:

[0032] See also Figure 1-Figure 8 , the present invention provides a technical solution:

[0033] An automated welding device for a rack frame includes a welding table 1, a protective cover 2 is fixedly installed on the top of the welding table 1, support plates 3 are fixedly installed on both left and right ends of the top of the welding table 1, the tops of the two groups of support plates 3 are slidably connected with movable slides 4, the tops of the two groups of movable slides 4 are fixedly installed with a storage table 5, a frame assembly 6 is placed on the top of the storage table 5, a welding frame 7 is fixedly installed on the inner side of the protective cover 2 and above the storage table 5, a welding head 8 is fixedly installed on the welding frame 7, and also includes:

[0034] The positioning mechanism 9 is fixedly installed inside the storage table 5 and is used for welding positioning of the frame assembly 6 .

[0035] First, moving seats 101 are fixedly installed at the four corners of the bottom of the welding table 1, and the bottoms of multiple groups of moving seats 101 are rotatably connected to moving wheels. The bottoms of multiple groups of moving seats 101 and the outer sides of the moving wheels are threadedly connected with supporting feet. Before using the welding table 1 to weld the frame assembly 6, the welding table 1 can be moved by the moving seat 101 at the bottom, and the welding table 1 can be moved to the raw material of the frame assembly 6 to facilitate nearby loading and welding. When welding the frame assembly 6, the supporting feet are rotated downward to make them against the ground, thereby fixing the bottom of the welding table 1 to ensure stability during welding operations.

[0036] Furthermore, a waste discharge trough 102 is opened on the inner side of the welding table 1, and a partition net 103 is fixedly installed on the top of the waste discharge trough 102. A waste discharge port 104 is opened at a position corresponding to the waste discharge trough 102 on the front side of the welding table 1. In the process of welding the frame assembly 6, some molten metal particles and welding slag will be generated accordingly. These wastes will leak into the waste discharge trough 102 through the partition net 103, and finally be discharged through the waste discharge port 104, thereby preventing these wastes from accumulating on the welding table 1 and affecting the welding operation.

[0037] Then, the left and right ends of the front side of the protective cover 2 are slidably connected with protective doors 201, and the first cylinders 202 are fixedly installed on the inner side of the protective cover 2 and above the two groups of protective doors 201. The driving ends of the two groups of first cylinders 202 are fixedly connected to the protective doors 201 through connecting blocks 203. Two groups of rollers 204 are fixedly connected between the left and right sides of the two groups of protective doors 201 and the protective cover 2. When welding the frame assembly 6, first start the first cylinder 202 above the protective door 201 to lift one group of protective doors 201, and then place the frame assembly 6 on the storage table 5 and fix it, and then send the frame assembly 6 into the inner side of the protective cover 2 for welding by moving the slide 4, and then lower the protective door 201 to prevent welding from affecting manual labor, and then lift it. Raise another set of protective doors 201 and then send another set of frame components 6 into the inner side of the protective cover 2 for welding. During the lifting and lowering process of the protective door 201, the roller 204 assists in rolling to ensure the stable movement of the protective door 201. During the operation, the top welding of the first set of frame components 6 is completed. At this time, the protective door 201 is opened and pushed out to turn over the entire frame component 6, and then the turned frame component 6 is sent in for welding the bottom. During this operation, the corresponding welding of the top of the second set of frame components 6 is completed and pushed out from the inner side of the protective cover 2, and then it is turned over again. This process is repeated so that the welding quality can be ensured while the frame component 6 is welded continuously, thereby improving the automation of the welding process and greatly improving the production efficiency.

[0038] Furthermore, guide rails 301 are fixedly installed at both ends of the top of the support plate 3, the bottom of the movable slide 4 is slidably connected to the guide rails 301 through a slide seat 302, a motor 303 is fixedly installed at the front end of the top of the support plate 3 and between the two sets of guide rails 301, a screw rod 304 is fixedly installed on the driving end of the motor 303, the rear end of the screw rod 304 is rotatably connected to the support plate 3 through a fixed block 305, and the middle of the bottom of the movable slide 4 is threadedly connected to the movable slide 4 through a movable block 306. When welding the frame assembly 6 First, place the frame assembly 6 on the storage table 5 for fixing, then start the motor 303 to drive the screw rod 304 to rotate, and under the connection of the moving block 306, and under the sliding cooperation of the slide 302 and the guide rail 301, drive the support plate 3 to move backward stably, so as to send the frame assembly 6 into the inner side of the protective cover 2 for welding operation. After the subsequent welding is completed, the motor 303 drives the screw rod 304 to reverse and push the frame assembly 6 out from the inner side of the protective cover 2, so as to improve the degree of automation of the welding process and further improve the production efficiency.

[0039] Among them, the storage table 5 is positioned and located on the inner side of the frame component 6 and is fixedly connected with a positioning boss 501. The frame component 6 consists of two groups of cross beams, two groups of longitudinal beams and multiple groups of reinforcing ribs. The two groups of cross beams are placed on the front and rear sides of the positioning boss 501, and the two groups of longitudinal beams are placed on the left and right sides of the positioning boss 501. Multiple groups of reinforcing ribs are respectively placed at the connection between the cross beams and the longitudinal beams and are located on the top of the positioning boss 501. When welding the frame component 6, the two groups of cross beams are placed close to the front and rear sides of the positioning boss 501, and then the two groups of longitudinal beams are placed close to the left and right sides of the positioning boss 501. Then, multiple groups of reinforcing ribs are placed in sequence to complete the placement of the frame component 6, and then the positioning mechanism 9 is used to fix the outer side of the frame component 6, thereby avoiding deviations in the welding process and improving the quality of welding.

[0040] Furthermore, an X-axis moving module 701 is provided on the top of the welding frame 7, a Y-axis moving module 702 is provided on the X-axis moving module 701, a Z-axis moving module 703 is provided on the front of the Y-axis moving module 702, and the welding head 8 is fixedly installed on the front of the Z-axis moving module 703. When the arranged frame assembly 6 is sent into the inner side of the protective cover 2 for welding, the X-axis moving module 701, the Y-axis moving module 702 and the Z-axis moving module 703 cooperate with each other, so that the welding head 8 can be flexibly moved to perform precise welding according to the welding points, so as to improve the degree of automation of the welding process and further improve the production efficiency.

[0041] It should be noted that the X-axis moving module 701, the Y-axis moving module 702 and the Z-axis moving module 703 in this solution are prior art, so their specific structures and working materials will not be described in detail.

[0042] Furthermore, the positioning mechanism 9 includes a fixed plate 901 fixedly mounted on the front end of the top of the storage table 5, a first movable plate 902 is slidably connected to the rear end of the top of the storage table 5, and second movable plates 903 are slidably connected to the left and right ends of the top of the storage table 5, an active cavity 904 is opened inside the storage table 5, a connecting rod 905 is slidably connected to the inside of the storage table 5, a fixed sleeve 906 is fixedly connected to the outside of the connecting rod 905 and located inside the active cavity 904, a spring 907 is sleeved on the outside of the connecting rod 905 and located on the back of the fixed sleeve 906, the middle of the bottom of the first movable plate 902 is fixedly connected to the rear end of the connecting rod 905 through a first slider 908, the middle of the bottom of the two groups of second movable plates 903 are fixedly connected to the second slider 909, the two groups of second sliders 909 are connected to the fixed sleeve 906 through a transmission rod 910, and a buffer is fixedly connected to the outside of the connecting rod 905 and located on the front of the fixed sleeve 906 Punch block 911, the front end of the top of the movable slide 4 is fixedly installed with a second cylinder 912, and the driving end of the second cylinder 912 is fixedly connected to the front end of the connecting rod 905. After the frame assembly 6 is placed on the storage table 5, the second cylinder 912 is started to return, thereby pulling the connecting rod 905 to move forward, and the first slider 908 is driven under the connection of the connecting rod 905. The first movable plate 902 is pulled toward the back of the frame assembly 6 through the first slider 908, and the front and rear sides of the frame assembly 6 are fixed in cooperation with the fixed plate 901 at the front end of the top of the storage table 5. At the same time, when the connecting rod 905 moves, it drives the fixing sleeve 906 to move, and under the transmission of the transmission rod 910, it drives two groups of second sliders 909 at the same time, and pulls the two groups of second movable plates 903 to fix the left and right sides of the frame assembly 6 respectively, thereby completing the fixation of the outer side of the frame assembly 6, thereby avoiding deviation in the welding process and improving the quality of welding.

[0043] Secondly, three groups of L-shaped clamps 913 are fixedly installed on the top of the fixed plate 901, the first movable plate 902 and the second movable plate 903. The L-shaped clamps 913 are fixedly connected to the fixed plate 901, the first movable plate 902 and the second movable plate 903 by bolts. The inner side of the L-shaped clamps 913 is fixedly connected with a hard rubber pad. When the fixed plate 901, the first movable plate 902 and the second movable plate 903 fix the outer side of the frame assembly 6, multiple groups of L-shaped clamps 913 are attached to the outer side of the frame assembly 6 for clamping and fixing. At the same time, hard rubber pads are provided on the inner sides of the multiple groups of L-shaped clamps 913, so as to avoid pinching the outer side of the frame assembly 6 and further ensure the production quality of the frame assembly 6.

[0044] Finally, both ends of the first movable plate 902 and the second movable plate 903 are slidably connected to the storage table 5 through the slide groove 914, and the two ends of the transmission rod 910 are respectively rotatably connected to the fixed sleeve 906 and the second slider 909. The buffer block 911 is a hard rubber block. When the first movable plate 902 and the second movable plate 903 move, the two ends cooperate to slide in the slide groove 914, thereby ensuring the movement stability of the first movable plate 902 and the second movable plate 903, and then ensuring the fixing effect of the frame assembly 6. At the same time, when the connecting rod 905 moves forward, the buffer block 911 is used to buffer and protect the inner side of the storage table 5.

[0045] In this embodiment, the implementation scenario is specifically as follows: when welding the frame assembly 6, first place two groups of cross beams of a frame assembly 6 close to the front and rear sides of the positioning boss 501, and then place two groups of longitudinal beams close to the left and right sides of the positioning boss 501, and then place multiple groups of reinforcing ribs in sequence to complete the placement of the frame assembly 6, and then start the return stroke of the second cylinder 912, thereby pulling the connecting rod 905 to move forward, and driving the first slider 908 under the connection of the connecting rod 905, and pulling the first movable plate 902 to the back side of the frame assembly 6 through the first slider 908, and cooperating with the fixed plate 901 at the top front end of the storage table 5 to fix the front and rear sides of the frame assembly 6, and at the same time, when the connecting rod 905 moves, it drives the fixing sleeve 906 to move, and under the transmission of the transmission rod 910, it drives the two groups of second sliders 909 at the same time, and pulls the two groups of second movable plates 903 to fix the left and right sides of the frame assembly 6 respectively, thereby completing the fixation of the outside of the frame assembly 6, and by moving The movable slide 4 sends the frame assembly 6 into the inner side of the protective cover 2, and then lowers the protective door 201 to prevent the welding from affecting the manual work, and then raises another set of protective doors 201 to send another set of frame assembly 6 into the inner side of the protective cover 2 for welding. During the operation, the top welding of the first set of frame assembly 6 is completed, and the protective door 201 is opened at this time to push it out and turn the entire frame assembly 6 over, and then the turned frame assembly 6 is sent in for welding the bottom. During this operation, the corresponding welding of the top of the second set of frame assembly 6 is completed and pushed out from the inner side of the protective cover 2, and then it is turned over again. This is repeated so that the welding quality can be ensured while the frame assembly 6 is continuously welded. The entire operation process is simple and convenient. Compared with the existing welding method of the rack frame, the present invention can improve the overall welding quality and safety of the automatic welding device of the rack frame through design, while improving the degree of automation of the welding process, thereby greatly improving production efficiency.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated welding device for a storage rack frame, comprising a welding table (1), a protective cover (2) is fixedly installed on the top of the welding table (1), support plates (3) are fixedly installed on both the left and right ends of the top of the welding table (1), the tops of two groups of the support plates (3) are slidably connected to movable slides (4), the tops of the two groups of the movable slides (4) are fixedly installed with storage tables (5), a frame assembly (6) is placed on the top of the storage table (5), a welding frame (7) is fixedly installed on the inner side of the protective cover (2) and above the storage table (5), and a welding head (8) is fixedly installed on the welding frame (7), characterized in that: Also includes: A positioning mechanism (9), wherein the positioning mechanism (9) is fixedly installed inside the storage platform (5), and the positioning mechanism (9) is used for welding positioning of the frame assembly (6).

2. The automatic welding device for a rack frame according to claim 1, characterized in that: A movable seat (101) is fixedly installed at the four corners of the bottom of the welding table (1), and the bottoms of multiple groups of the movable seats (101) are rotatably connected to movable wheels, and the bottoms of multiple groups of the movable seats (101) and the outer sides of the movable wheels are threadedly connected to support feet.

3. The automatic welding device for a rack frame according to claim 1, characterized in that: A waste discharge groove (102) is provided on the inner side of the welding platform (1), a partition net (103) is fixedly installed on the top of the waste discharge groove (102), and a waste discharge port (104) is provided on the front side of the welding platform (1) at a position corresponding to the waste discharge groove (102).

4. The automatic welding device for a rack frame according to claim 1, characterized in that: The left and right ends of the front side of the protective cover (2) are both slidably connected to protective doors (201); first cylinders (202) are fixedly installed on the inner side of the protective cover (2) and above the two groups of protective doors (201); the driving ends of the two groups of first cylinders (202) are fixedly connected to the protective doors (201) via connecting blocks (203); and two groups of rollers (204) are fixedly connected between the left and right sides of the two groups of protective doors (201) and the protective cover (2).

5. The automatic welding device for a rack frame according to claim 1, characterized in that: Guide rails (301) are fixedly installed at both left and right ends of the top of the support plate (3); the bottom of the movable slide (4) is slidably connected to the guide rails (301) via a slide seat (302); a motor (303) is fixedly installed at the front end of the top of the support plate (3) and between the two sets of guide rails (301); a screw rod (304) is fixedly installed on the driving end of the motor (303); the rear end of the screw rod (304) is rotatably connected to the support plate (3) via a fixed block (305); and the middle of the bottom of the movable slide (4) is threadedly connected to the movable slide (4) via a movable block (306).

6. The automatic welding device for a rack frame according to claim 1, characterized in that: The storage platform (5) is positioned and is located on the inner side of the frame assembly (6) and is fixedly connected with a positioning boss (501). The frame assembly (6) is composed of two groups of cross beams, two groups of longitudinal beams and multiple groups of reinforcing ribs. The two groups of cross beams are placed on the front and rear sides of the positioning boss (501), the two groups of longitudinal beams are placed on the left and right sides of the positioning boss (501), and the multiple groups of reinforcing ribs are respectively placed at the connection between the cross beams and the longitudinal beams and located on the top of the positioning boss (501).

7. The automatic welding device for a rack frame according to claim 1, characterized in that: An X-axis moving module (701) is provided on the top of the welding frame (7), a Y-axis moving module (702) is provided on the X-axis moving module (701), a Z-axis moving module (703) is provided on the front of the Y-axis moving module (702), and the welding head (8) is fixedly mounted on the front of the Z-axis moving module (703).

8. The automatic welding device for a rack frame according to claim 1, characterized in that: The positioning mechanism (9) comprises a fixed plate (901) fixedly mounted on the front end of the top of the storage platform (5); the rear end of the top of the storage platform (5) is slidably connected to a first movable plate (902); the left and right ends of the top of the storage platform (5) are slidably connected to second movable plates (903); an active cavity (904) is provided inside the storage platform (5); a connecting rod (905) is slidably connected inside the storage platform (5); a fixed sleeve (906) is fixedly connected to the outside of the connecting rod (905) and located inside the active cavity (904); a spring (907) is sleeved on the outside of the connecting rod (905) and located on the back of the fixed sleeve (906). ), the middle of the bottom of the first movable plate (902) is fixedly connected to the rear end of the connecting rod (905) through a first slider (908), the middle of the bottom of the two groups of the second movable plates (903) are fixedly connected with a second slider (909), the two groups of the second sliders (909) are connected to the fixed sleeve (906) through a transmission rod (910), a buffer block (911) is fixedly connected to the outside of the connecting rod (905) and located on the front side of the fixed sleeve (906), and a second cylinder (912) is fixedly installed at the front end of the top of the movable slide (4), and the driving end of the second cylinder (912) is fixedly connected to the front end of the connecting rod (905).

9. The automatic welding device for a rack frame according to claim 8, characterized in that: Three groups of L-shaped clamps (913) are fixedly installed on the top of the fixed plate (901), the first movable plate (902) and the second movable plate (903); the L-shaped clamps (913) are fixedly connected to the fixed plate (901), the first movable plate (902) and the second movable plate (903) by bolts; and hard rubber pads are fixedly connected to the inner sides of the L-shaped clamps (913).

10. The automatic welding device for a rack frame according to claim 8, characterized in that: Both ends of the first movable plate (902) and the second movable plate (903) are slidably connected to the storage platform (5) through a sliding groove (914), and both ends of the transmission rod (910) are rotationally connected to the fixed sleeve (906) and the second sliding block (909) respectively, and the buffer block (911) is a hard rubber block.

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