A welding device for a shelf assembly

Abstract

The present invention discloses a welding device for a shelf assembly, which includes a bottom frame, a longitudinal pipe support and clamping device, a transverse pipe positioning and clamping assembly, a transverse pipe pressing assembly, a bottom plate positioning and clamping assembly and a pressing assembly. The bottom frame is fixed on a flipping mechanism. A longitudinal pipe support and clamping device for supporting and clamping longitudinal pipes is transversely installed on the bottom frame. A plurality of groups of transverse pipe positioning and clamping assemblies and transverse pipe pressing assemblies are installed on the bottom frame on both sides of the longitudinal pipe support and clamping device. A bottom plate positioning and clamping assembly is installed on the bottom frame on one side of the transverse pipe, and a pressing assembly for pressing the transverse pipe and the bottom plate is installed on the bottom frame on the other side of the transverse pipe. The installation positions of the transverse pipe positioning and clamping assembly, the transverse pipe pressing assembly, the bottom plate positioning and clamping assembly and the pressing assembly are adjustable in the X and Y directions. By the above method, the present invention can clamp and position the bottom plate and the square pipes placed horizontally and vertically, without displacement or misalignment, ensuring that the welding quality of the square pipes meets the requirements, and has wide practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of square pipe rack welding, and particularly to a welding device for a rack assembly. Background Art

[0002] The rack assembly, i.e., the square pipe rack, is composed of multiple horizontal pipes and multiple vertical pipes intersecting at 90 degrees. Then, the joints of the horizontal pipes and vertical pipes are welded and fixed, and a bottom plate is also welded at the bottom of the rack to obtain a complete square pipe rack. During the actual processing process, the horizontal pipes and vertical pipes are prone to dislocation. Moreover, even if positioning is carried out before welding, dislocation will still occur during welding due to the lack of restraint, resulting in low processing accuracy and a low qualified rate.

[0003] In order to ensure the precision requirements of grid welding, it is necessary to accurately position the bottom plate and multiple square pipes during welding. However, there is currently a lack of a device in production that can achieve the positioning of the bottom plate and multiple square pipes. The Chinese patent with the patent number CN202121833085.3 discloses a welding and fixing tooling for a square pipe rack, which clamps and positions the square pipes to be welded through several side pressing cylinders and an upper pressing cylinder. The side pressing cylinders and the upper pressing cylinder are fixedly installed on a fixed bottom plate. This tooling is for a square pipe rack with a single shape. However, in actual use, the square pipe racks in non-standard automation are of various types, and according to the actual design requirements, horizontal pipes and vertical pipes with corresponding quantities and corresponding lengths are used. Obviously, a single-type welding and fixing tooling cannot accommodate the welding of square pipe racks with multiple shapes.

[0004] Based on the above defects and deficiencies, it is necessary to improve the existing technology and design a welding device for a rack assembly. Summary of the Invention

[0005] The main technical problem to be solved by the present invention is to provide a welding device for a rack assembly, which can clamp and position the bottom plate and the square pipes placed horizontally and vertically, can adjust the placement position and placement height of the square pipes, will not shift or be misaligned, ensure that the welding quality of the square pipes meets the requirements, and can adjust the clamping and positioning position according to actual requirements, with wide practicability.

[0006] To solve the above technical problems, a technical solution adopted by the present invention is: to provide a welding device for a shelf assembly. This welding device for a shelf assembly includes a bottom frame, a longitudinal pipe support and clamping device, a transverse pipe positioning and clamping assembly, a transverse pipe pressing assembly, a bottom plate positioning and clamping assembly, and a pressing assembly. The bottom frame is fixed on a flipping mechanism. A longitudinal pipe support and clamping device for supporting and clamping longitudinal pipes is transversely installed on the bottom frame. Several groups of transverse pipe positioning and clamping assemblies for positioning and supporting transverse pipes and a transverse pipe pressing assembly for pressing a square pipe rack are installed on the bottom frame on both sides of the longitudinal pipe support and clamping device. A bottom plate positioning and clamping assembly is installed on the bottom frame on one side of the transverse pipe, and a pressing assembly for pressing the transverse pipe and the bottom plate is installed on the bottom frame on the other side of the transverse pipe. The installation positions of the transverse pipe positioning and clamping assembly, the transverse pipe pressing assembly, the bottom plate positioning and clamping assembly, and the pressing assembly are adjustable in the X and Y directions.

[0007] Preferably, the longitudinal pipe support and clamping device includes a slide rod positioning frame, a slide rod mounting plate, slide rods, slide sleeve assemblies, ejector rods, spring plates, ejector block cylinders, and ejector block assemblies. Two slide rod positioning frames are fixed on the bottom frame. A slide rod mounting plate capable of adjusting the installation position in the Y direction is installed on the slide rod positioning frame. Slide rods are fixedly installed between the two slide rod mounting plates. Several groups of slide sleeve assemblies for supporting longitudinal pipes and capable of adjusting the support height are installed on the slide rods. A movable ejector rod is inserted into one slide rod mounting plate. An ejector block cylinder pointing to the ejector rod is installed on the bottom frame. The other end of the ejector rod is movably connected to a spring plate fixed on the slide rod through a spring. An ejector block assembly for clamping the longitudinal pipe is installed on the ejector rod and is opposite to the slide sleeve assemblies one by one.

[0008] Preferably, the slide sleeve assembly includes a vertical plate fixed on the slide rod. A rubber pad for preventing damage to the square pipe is installed on one side of the vertical plate close to the ejector block assembly. A horizontal plate is installed at the lower part of the vertical plate. An adjusting bolt is installed on the horizontal plate. A support plate is placed on the top of the adjusting bolt. The support plate and the horizontal plate are locked by screws. The vertical plate can be detachably installed on the slide rod.

[0009] Preferably, the transverse pipe positioning and clamping assembly includes a cylinder base, a transverse pipe support block, a clamping cylinder, a rack, and a clamping arm. A transverse pipe support block is installed at the front end of the cylinder base. A clamping cylinder is installed on the cylinder base. The piston rod of the clamping cylinder is installed with a horizontal rack through a connecting block. The tail of the clamping arm is movably inserted into the cylinder base through a support. An external gear meshing with the rack is provided at the tail of the clamping arm. A claw for clamping the transverse pipe is provided at the extending end of the clamping arm.

[0010] Preferably, the bottom plate positioning and clamping assembly includes a positioning plate, a push-pull cylinder, a push plate, and clamping rods. The positioning plate is arranged on the bottom frame. An installation groove for placing the bottom plate is provided at the front end of the positioning plate. The piston rod of the push-pull cylinder is fixedly connected to the positioning plate, and the tail of the push-pull cylinder is installed on the push plate. The push plate and the positioning plate are movably connected through the guiding of the clamping rods. One end of the lower clamping rod is fixed on the push plate, and the other end of the lower clamping rod passes through the positioning plate. Open sliding grooves are provided in the upper parts of the positioning plate and the push plate, and the upper clamping rod is placed in the open sliding grooves. Clamping parts for clamping the bottom plate are provided at the ends of the upper and lower clamping rods.

[0011] Preferably, the bottom frame includes an installation base, a Y-direction adjustment plate, and an X-direction adjustment plate. A rectangular avoidance opening for facilitating flipping for back welding is provided on the installation base. Installation holes are arranged in an array around the installation base. A number of Y-direction adjustment plates are installed on both sides of the installation base. The X-direction adjustment plates are installed on the Y-direction adjustment plates on the same side. Waist-shaped holes for adjusting the installation position and perpendicular to each other are provided on the Y-direction adjustment plate and the X-direction adjustment plate. The horizontal pipe positioning and clamping assembly, the horizontal pipe pressing assembly, the bottom plate positioning and clamping assembly, and the pressing assembly are all installed on the X-direction adjustment plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The horizontal pipe positioning and clamping assembly serves as a positioning reference. The horizontal pipe support block determines the horizontal placement height and placement position, and the horizontal pipe positioning and clamping assembly can clamp the horizontal pipe;

[0014] The installation position of the sliding sleeve assembly on the sliding rod is adjustable. According to the rack assembly, the installation position of the vertical pipe and the number of vertical pipes are adjusted. The adjusting bolt is manually rotated to adjust the height of the support plate to ensure that the top surface of the vertical pipe is flush with the top surface of the horizontal pipe. The top block cylinder drives the top block assembly to clamp the vertical pipe;

[0015] The horizontal pipe pressing assembly and the pressing assembly clamp the placed rack assembly to ensure that it will not shift or be misaligned;

[0016] The setting of the bottom plate positioning and clamping assembly can clamp the bottom plate. After welding is completed, the push-pull cylinder contracts, and the upper clamping rod is manually removed to facilitate taking out the welded rack assembly. Brief Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of a welding device for a rack assembly.

[0018] Figure 2 It is a schematic structural diagram of a rack assembly.

[0019] Figure 3 It is a schematic structural diagram of a positioning and transfer assembly of a welding device for a rack assembly.

[0020] Figure 4 It is a schematic diagram of the bottom frame structure of a welding device for a rack assembly.

[0021] Figure 5 It is a partially enlarged view of area A of a welding device for a rack assembly.

[0022] Figure 6 It is a partially enlarged view of area B of a welding device for a rack assembly.

[0023] Among them, 01 - longitudinal pipe; 02 - cross pipe; 03 - bottom plate;

[0024] 1 - bottom frame; 11 - mounting base; 12 - Y - direction adjusting plate; 13 - X - direction adjusting plate;

[0025] 2 - longitudinal pipe support and clamping device; 21 - slide rod positioning frame; 22 - slide rod mounting plate; 23 - slide rod; 24 - slide sleeve assembly; 241 - vertical plate; 242 - rubber pad; 243 - horizontal plate; 244 - adjusting bolt; 245 - support plate; 25 - ejector rod; 26 - spring plate; 27 - ejector block cylinder; 28 ejector block assembly;

[0026] 3 - cross pipe positioning and clamping assembly; 31 - cylinder base; 32 - cross pipe support block; 33 - clamping cylinder; 34 - rack; 35 clamping arm; 351 - external gear; 352 - jaw;

[0027] 4 - cross pipe pressing component; 41 - base; 42 - square pipe positioning block; 43 - pressing cylinder;

[0028] 5 - bottom plate positioning and clamping assembly; 51 - positioning plate; 52 - push - pull cylinder; 53 - push plate; 54 clamping rod; 540 - clamping part;

[0029] 6 - pressing component; 61 - longitudinal cylinder mounting seat; 62 - pressing cylinder. Specific embodiments

[0030] The following combines the accompanying drawings to elaborate on the preferred embodiments of the present invention in detail, so that the advantages and features of the invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0031] Please refer to Figures 1 to 6 , the embodiments of the present invention include:

[0032] A welding device for a shelf assembly. The welding device for the shelf assembly includes a bottom frame 1, a vertical pipe support and clamping device 2, a horizontal pipe positioning and clamping assembly 3, a horizontal pipe pressing assembly 4, a bottom plate positioning and clamping assembly 5, and a pressing assembly 6. The bottom frame 1 is fixed on a turning mechanism (not shown in the figure). A vertical pipe support and clamping device 3 for supporting and clamping a vertical pipe 01 is transversely installed on the bottom frame 1. Several groups of horizontal pipe positioning and clamping assemblies 3 for positioning and supporting a horizontal pipe 02 and a horizontal pipe pressing assembly 4 for pressing a square pipe rack are installed on the bottom frame 1 on both sides of the vertical pipe support and clamping device 3. A bottom plate positioning and clamping assembly 5 is installed on the bottom frame 1 on one side of the horizontal pipe 02, and a pressing assembly 6 for pressing the horizontal pipe 02 and a bottom plate 03 is installed on the bottom frame 1 on the other side of the horizontal pipe 02. The installation positions of the horizontal pipe positioning and clamping assembly 3, the horizontal pipe pressing assembly 4, the bottom plate positioning and clamping assembly 5, and the pressing assembly 6 are adjustable in the X and Y directions.

[0033] The vertical pipe support and clamping device 2 includes a slide rod positioning frame 21, a slide rod mounting plate 22, a slide rod 23, a slide sleeve assembly 24, a top rod 25, a spring plate 26, a top block cylinder 27, and a top block assembly 28. Two slide rod positioning frames 21 are fixed on the bottom frame 1. A slide rod mounting plate 22 capable of adjusting the installation position in the Y direction is installed on the slide rod positioning frame 21. A slide rod 23 is fixedly installed between the two slide rod mounting plates 22. Several groups of slide sleeve assemblies 24 for supporting the vertical pipe 01 and capable of adjusting the support height are installed on the slide rod 23. A movable top rod 25 is inserted into one slide rod mounting plate 22. A top block cylinder 27 pointing to the top rod 25 is installed on the bottom frame 1. The other end of the top rod 25 is movably connected to a spring plate 26 fixed on the slide rod 23 through a spring. A top block assembly 28 for clamping the vertical pipe 01 is installed on the top rod 25 and is opposite to the slide sleeve assembly 24 one by one. When the piston rod of the top block cylinder 27 extends, it drives the top rod 25 to move. The top block assembly 28 on the top rod 25 moves towards the slide sleeve assembly 24 to clamp the vertical pipe 01. After welding is completed, the top block cylinder 27 resets, and the top rod 25 resets under the elastic force of the spring.

[0034] The slide sleeve assembly 24 includes a vertical plate 241 fixed on the slide rod 23. A rubber pad 242 for preventing damage to the square pipe is installed on one side of the vertical plate 241 close to the top block assembly 28. A horizontal plate 243 is installed at the lower part of the vertical plate 241. An adjusting bolt 244 is installed on the horizontal plate 243. A support plate 245 is placed on the top of the adjusting bolt 244. The support plate 245 and the horizontal plate 243 are locked by screws. The vertical plate 241 can be detachably installed on the slide rod 23, and the installation position is adjustable.

[0035] The horizontal pipe positioning and clamping assembly 3 includes a cylinder base 31, a horizontal pipe support block 32, a clamping cylinder 33, a rack 34, and a clamping arm 35. The front end of the cylinder base 31 is equipped with a horizontal pipe support block 32, and a clamping cylinder 33 is installed on the cylinder base 31. The piston rod of the clamping cylinder 33 is installed with a horizontal rack 34 through a connecting block. The tail of the clamping arm 35 is movably inserted into the cylinder base 31 through a support. An external gear 351 meshing with the rack 34 is provided at the tail of the clamping arm 35, and a claw 352 for clamping the horizontal pipe 02 is arranged at the extending end of the clamping arm 35.

[0036] The horizontal pipe pressing component 4 includes a base 41, a square pipe positioning block 42, and a pressing cylinder 43. The side end of the base 41 is equipped with a square pipe positioning block 42, and the square pipe positioning block 42 is in a right-angled shape. A pressing cylinder 43 opposite to the square pipe positioning block 42 is installed on the base 41. The horizontal pipe 02 is placed on the square pipe positioning block 42, and the piston rod of the pressing cylinder 43 extends to press it against the square pipe positioning block 42.

[0037] The bottom plate positioning and clamping assembly 5 includes a positioning plate 51, a push-pull cylinder 52, a push plate 53, and a clamping rod 54. The positioning plate 51 is arranged on the bottom frame 1, and an installation groove for placing the bottom plate 03 is provided at the front end of the positioning plate 51. The piston rod of the push-pull cylinder 52 is fixedly connected to the positioning plate 51, and the tail of the push-pull cylinder 52 is installed on the push plate 53. The push plate 53 and the positioning plate 51 are guided and movably connected through the clamping rod 54. One end of the lower clamping rod 54 is fixed to the push plate 53, and the other end of the lower clamping rod 54 passes through the positioning plate 51. Open sliding grooves are provided in the upper parts of the positioning plate 51 and the push plate 53, and the upper clamping rod 54 is placed in the open sliding groove. Clamping parts 540 for clamping the bottom plate 03 are arranged at the ends of the upper and lower clamping rods 54. After welding is completed, the push-pull cylinder 52 contracts, and the upper clamping rod 54 is manually removed to facilitate taking the frame assembly.

[0038] The pressing component 6 includes a longitudinal cylinder mounting seat 61 installed on the bottom frame 1 and a pressing cylinder 62 installed on the longitudinal cylinder mounting seat 61. The piston rod part of the pressing cylinder 62 faces the horizontal pipe.

[0039] The bottom frame 1 includes a mounting base 11, a Y-direction adjusting plate 12, and an X-direction adjusting plate 13. A rectangular avoidance opening for facilitating turning for back welding is provided on the mounting base 11. Mounting holes are arranged in an array around the mounting base 11. A number of Y-direction adjusting plates 12 are installed on both sides of the mounting base 11, and X-direction adjusting plates 13 are installed on the same side of the Y-direction adjusting plates 12. Waist-shaped holes for adjusting the mounting position and perpendicular to each other are provided on the Y-direction adjusting plates 12 and the X-direction adjusting plates 13. The horizontal pipe positioning and clamping assembly 3, the horizontal pipe pressing component 4, the bottom plate positioning and clamping assembly 5, and the pressing component 6 are all installed on the X-direction adjusting plate 13.

[0040] When the welding equipment for a shelf assembly of the present invention is working, place the bottom plate 03 into the installation groove at the front end of the positioning plate 51, and manually place the upper clamping rod 54 into the open sliding grooves above the positioning plate 51 and the pushing plate 53. The piston rod of the pushing and pulling cylinder 52 extends to drive the pushing plate 53 to move. The clamping parts 540 of the upper and lower clamping rods 54 clamp the bottom plate 03. Place a cross tube 02 on the cross tube support block 32 of the cross tube positioning and clamping assembly 3. The piston rod of the pressing cylinder 62 extends to make one end of the cross tube 02 abut against the bottom plate 03. The piston rod of the clamping cylinder 33 extends to drive the rack 34 to retreat. The external gear 351 at the tail of the clamping arm 35 meshes with the rack 34, thereby driving the clamping arm 35 to rotate. The clamping jaws 352 of the clamping arm 35 clamp the cross tube 02. Determine the number and length of the longitudinal tubes 01, place the longitudinal tubes 01 on the sliding sleeve assembly 24, adjust the installation position of the sliding sleeve assembly 24 on the sliding rod 23 according to the installation position of the longitudinal tubes 01. Make one end of the longitudinal tube 01 closely abut against the cross tube 02, manually rotate the adjusting bolt 244, and adjust the height of the support plate 245 to ensure that the top surface of the longitudinal tube 01 is flush with the top surface of the cross tube 02. The piston rod of the top block cylinder 27 extends to drive the top rod 25 to move. The top block assembly 28 on the top rod 25 moves towards the sliding sleeve assembly 24 to clamp the longitudinal tube 01. Place another cross tube 02 on the square tube positioning block 42 of the cross tube top pressing assembly 4, adjust the installation position of the cross tube top pressing assembly 4 to ensure that the cross tube 02 abuts against the longitudinal tube. The piston rod of the top pressing cylinder 43 extends to press it tightly against the square tube positioning block 42 to clamp the cross tube 02. The piston rod of another pressing cylinder 62 extends to press the cross tube 02 and the bottom plate 03 tightly. Start the welding tooling. After the front and side welding is completed, the bottom frame 1 is flipped 180 degrees by the flipping mechanism for bottom surface welding. After the welding is completed, it flips back to the original position. The pushing and pulling cylinder 52 contracts, manually remove the upper clamping rod 54, and then remove the welded shelf assembly.

[0041] The welding equipment for a shelf assembly of the present invention can clamp and position the bottom plate and the square tubes placed horizontally and vertically, can adjust the placement position and placement height of the square tubes, will not shift or be misaligned, ensures that the welding quality of the square tubes meets the requirements, and can adjust the clamping and positioning position according to actual requirements, with wide practicability.

[0042] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the description and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be included in the patent protection scope of the present invention by the same token.

Claims

1. A welding device for a shelf assembly, characterized in that: It includes a bottom frame, a vertical pipe support clamping device, a horizontal pipe positioning clamping assembly, a horizontal pipe pressing assembly, a bottom plate positioning clamping assembly and a pressing assembly. The bottom frame is fixed on a turning mechanism. A vertical pipe support clamping device for supporting and clamping vertical pipes is transversely installed on the bottom frame. On the bottom frame on both sides of the vertical pipe support clamping device, several groups of horizontal pipe positioning clamping assemblies for positioning and supporting horizontal pipes and a horizontal pipe pressing assembly for pressing a square pipe rack are installed. A bottom plate positioning clamping assembly is installed on the bottom frame on one side of the horizontal pipe, and a pressing assembly for pressing the horizontal pipe and the bottom plate is installed on the bottom frame on the other side of the horizontal pipe. The installation positions of the horizontal pipe positioning clamping assembly, the horizontal pipe pressing assembly, the bottom plate positioning clamping assembly and the pressing assembly are adjustable in the X and Y directions; The vertical pipe support clamping device includes a slide rod positioning frame, a slide rod mounting plate, slide rods, slide sleeve assemblies, ejector rods, spring plates, ejector block cylinders and ejector block assemblies. Two slide rod positioning frames are fixed on the bottom frame. A slide rod mounting plate capable of adjusting the installation position in the Y direction is installed on the slide rod positioning frame. Slide rods are fixedly installed between the two slide rod mounting plates. Several groups of slide sleeve assemblies for supporting vertical pipes and capable of adjusting the support height are installed on the slide rods. A movable ejector rod is inserted into one slide rod mounting plate. An ejector block cylinder pointing to the ejector rod is installed on the bottom frame. The other end of the ejector rod is movably connected to a spring plate fixed on the slide rod through a spring. An ejector block assembly for clamping the vertical pipe is installed on the ejector rod and is opposite to the slide sleeve assembly one by one; The horizontal pipe positioning clamping assembly includes a cylinder base, a horizontal pipe support block, a clamping cylinder, a rack and a clamping arm. A horizontal pipe support block is installed at the front end of the cylinder base. A clamping cylinder is installed on the cylinder base. The piston rod of the clamping cylinder is installed with a horizontal rack through a connecting block. The tail of the clamping arm is movably inserted into the cylinder base through a support. An external gear meshing with the rack is provided at the tail of the clamping arm. A claw for clamping the horizontal pipe is provided at the extending end of the clamping arm; The bottom plate positioning clamping assembly includes a positioning plate, a push-pull cylinder, a push plate and a clamping rod. The positioning plate is arranged on the bottom frame. An installation groove for placing the bottom plate is provided at the front end of the positioning plate. The piston rod of the push-pull cylinder is fixedly connected to the positioning plate. The tail of the push-pull cylinder is installed on the push plate. The push plate and the positioning plate are movably connected through the guiding of the clamping rod. One end of the lower clamping rod is fixed on the push plate, and the other end of the lower clamping rod passes through the positioning plate. Open sliding grooves are provided in the upper parts of the positioning plate and the push plate. The upper clamping rod is placed in the open sliding groove. Clamping parts for clamping the bottom plate are provided at the ends of the upper and lower clamping rods.

2. The welding equipment for a shelf assembly according to claim 1, characterized in that: The slide sleeve assembly includes a vertical plate fixed on the slide rod. A rubber pad for preventing damage to the square pipe is installed on one side of the vertical plate close to the ejector block assembly. A horizontal plate is installed at the lower part of the vertical plate. An adjusting bolt is installed on the horizontal plate. A support plate is placed on the top of the adjusting bolt. The support plate and the horizontal plate are locked by screws. The vertical plate can be detachably installed on the slide rod.

3. A welding device for a shelf assembly according to claim 1, characterized in that: The bottom frame includes an installation base, a Y-direction adjustment plate, and an X-direction adjustment plate. A rectangular avoidance opening is provided on the installation base to facilitate flipping for back welding. Installation holes are arranged in an array around the installation base. A number of Y-direction adjustment plates are installed on both sides of the installation base, and X-direction adjustment plates are installed on the Y-direction adjustment plates on the same side. Waist-shaped holes perpendicular to each other for adjusting the installation position are provided on the Y-direction adjustment plate and the X-direction adjustment plate. The horizontal pipe positioning and clamping assembly, the horizontal pipe pressing assembly, the bottom plate positioning and clamping assembly, and the pressing assembly are all installed on the X-direction adjustment plate.

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