Anti-deformation welding device for stainless steel grid plate
By designing a clamping and support mechanism and utilizing a motor drive and spring gear transmission system, the problems of positional displacement and limited applicability during the welding process of stainless steel gratings have been solved. This has resulted in improved stable clamping and vibration resistance, ensuring welding quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-23
- Publication Date
- 2026-08-04
AI Technical Summary
Existing stainless steel grating welding equipment is prone to workpiece displacement when the clamping is too loose, and its application range is limited, leading to welding deformation and quality problems.
The device employs a clamping mechanism and a support mechanism. The motor drives the connecting block to rotate, which in turn moves the connecting plate, the slider, and the long plate. The support arm rotates and the clamping plate fits against the side of the grating plate. Combined with a spring and gear transmission system, it achieves stable clamping and adapts to grating plates of different heights.
It effectively prevents deformation caused by positional displacement of the grating during welding, improves the applicability and equipment flexibility, enhances vibration resistance, and ensures welding quality and efficiency.
Smart Images

Figure CN224587299U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stainless steel grating welding technology, and in particular to a stainless steel grating anti-deformation welding device. Background Technology
[0002] Stainless steel grating has high strength and hardness, stable structure, and strong load-bearing capacity. It can withstand greater pressure and impact, meeting different load-bearing requirements, such as industrial platforms and docks. Stainless steel contains chromium and nickel alloy components, which can form a dense oxide film on the surface, effectively preventing oxygen and water from contacting the inside of the steel. It can resist the corrosion of acid, alkali, and salt chemicals. A stainless steel grating anti-deformation welding device is used when welding stainless steel grating.
[0003] A search revealed Chinese Patent Publication No. CN211192462U, which discloses an energy-saving and efficient automated welding device for grid panels. The device includes a movable resistance welding unit, a fixed resistance welding unit, an X-axis linear module, and a machine base. The X-axis linear module is symmetrically arranged on both sides of the machine base along the conveying direction. The lower ends of the movable resistance welding unit are mounted on the X-axis linear module, and the X-axis linear module can drive the movable resistance welding unit to move along the conveying direction of the machine base. The lower ends of the fixed resistance welding unit are fixed to both sides of the machine base. The movable and fixed resistance welding units are symmetrically arranged. This energy-saving and efficient automated welding device for grating plates uses resistance welding to weld the plates, eliminating the need for a positioner to locate the welding points and saving production costs. Resistance welding also significantly saves energy, and the symmetrical welding method reduces deformation, improves welding quality and work efficiency, making it highly valuable for widespread application. However, the material's thermal expansion is constrained during welding, resulting in significant residual stress after cooling, which can lead to deformation. While the fixture body is made of heat-resistant stainless steel and high-temperature alloys with a ceramic coating, issues remain, such as workpiece displacement during welding when the clamping is too loose, and limitations in its applicability. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a stainless steel grating anti-deformation welding device, which aims to improve the problems of workpiece displacement during welding when the clamping is too loose and the limited scope of application in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a stainless steel grating anti-deformation welding device, comprising a base, a clamping mechanism installed on the inner wall of the base for clamping the grating plate, a support mechanism installed on the top of the clamping mechanism for supporting the grating plate; the clamping mechanism includes a fixing plate fixedly connected to the upper part of the inner wall of the base, an mounting plate fixedly connected to the top wall of the fixing plate, a rotating shaft rotatably connected to the left and right sides of the top wall of the mounting plate, support arms fixedly connected to the front and rear sides of the outer wall of the rotating shaft, a base plate fixedly connected to the middle of the inner bottom wall of the base, slide rails fixedly connected to the front and rear sides of the top wall of the base plate, a slider slidably connected to the outer wall of the slide rail, a long plate fixedly connected to the top wall of the slider, the long plate being connected to the support arms respectively, and a driving assembly installed at the bottom of the mounting plate.
[0006] The above technical solutions prevent deformation during welding caused by grating plate displacement, and the fixing rods can adapt to grating plates of different heights, thus improving the applicability.
[0007] As a further description of the above technical solution: The drive assembly includes a motor, which is fixedly connected to the middle of the bottom wall of the mounting plate. A connecting block is fixedly connected to the output end of the motor. Connecting plates are rotatably connected to the front and rear sides of the top wall of the connecting block. The end of the motor is rotatably connected to the middle of the top wall of the long plate.
[0008] The above technical solution involves the motor rotating to drive the connecting block to rotate, which in turn pulls the connecting plate. The connecting plate then pulls the slider, thereby causing the long plate to move left and right on the outer wall of the slide rail.
[0009] As a further description of the above technical solution: A clamping plate is fixedly connected to the inner side of the upper middle part of the outer wall of the support arm, and multiple fixing rods are fixedly connected at equal intervals to the outer side of the upper middle part of the outer wall of the support arm.
[0010] The above technical solution involves the long plate moving and pulling the support arm, causing the support arm to drive the rotating shaft to rotate. The rotation of the shaft causes the clamping plate at the top of the support arm to converge towards the center, ensuring that the outer wall of the clamping plate is always in contact with both sides of the grating plate.
[0011] As a further description of the above technical solution: The support mechanism includes a fixing block, which is fixedly connected at equal intervals to the middle of the top wall of the mounting plate. A support frame is fixedly connected to the top of the fixing block, and a limit frame is installed on the left and right sides of the upper middle part of the outer wall of the support frame.
[0012] The above technical solution involves fixing the support plate to the limiting frame, placing the grid plate on the support plate, and causing the support plate to move downwards and compress the spring due to the weight of the support plate.
[0013] As a further description of the above technical solution: The top of the support frame is rotatably connected to a connecting frame, the outer wall of the connecting frame is equipped with a spring, the top of the connecting frame and the limiting frame are equipped with a bearing plate, and the lower middle part of the outer wall of the support frame is equipped with a transmission component.
[0014] Through the above technical solution, a firm fixed connection is achieved between the bearing plate and the limiting frame, providing a stable support platform for the placement of the grating plate.
[0015] As a further description of the above technical solution: The transmission assembly includes a mounting block, which is fixedly connected to the lower part of the outer wall of the support frame. A connecting rod is rotatably connected to the left side of the outer wall of the mounting block. A toothed disc is fixedly connected to the left end of the connecting rod. A rack is meshed with the rear side of the outer wall of the toothed disc. The rack is slidably connected to the outer wall of the support frame. The top end of the rack is connected to the connecting frame.
[0016] Through the above technical solution: the load-bearing plate causes the connecting frame to move downward due to the weight, thereby compressing the spring. The rack at the bottom of the connecting frame slides downward and drives the saw tooth disk to rotate through the gear transmission mechanism. The elasticity of the spring evenly transmits the clamping force.
[0017] As a further description of the above technical solution: A controller is installed on the right side of the outer wall of the base, and a power supply cabinet is fixedly connected to the right side of the controller.
[0018] Through the above technical solution: the controller is responsible for receiving sensor signals, processing data, executing logical judgments, and controlling the actions of each execution component to achieve the preset and real-time adjustment of anti-deformation process parameters; the power cabinet provides a stable power supply for the electrical components in the device, and at the same time realizes power distribution, overload protection and electromagnetic compatibility design.
[0019] As a further description of the above technical solution: A bracket is fixedly connected to the top left side of the controller, and a display is fixedly connected to the front side of the outer wall of the bracket.
[0020] The above technical solution involves a bracket supporting a display, which serves as a human-machine interface to show device operating parameters and process status, and allows operators to input commands and modify parameters.
[0021] This utility model has the following beneficial effects: 1. In this utility model, the rotation of the motor drives the connecting block to rotate, the rotation of the connecting block pulls the connecting plate, the connecting plate pulls the slider, thereby driving the long plate to move left and right on the outer wall of the slide rail. The movement of the long plate pulls the support arm, causing the support arm to drive the rotating shaft to rotate. The rotation of the rotating shaft causes the clamping plate at the top of the support arm to converge towards the middle, so that the outer wall of the clamping plate is always in contact with the two sides of the grating plate, preventing the grating plate from shifting position and causing deformation during welding. The fixing rod can adapt to grating plates of different heights, improving the range of applications.
[0022] 2. In this utility model, the bearing plate is fixedly connected to the limiting frame. The grid plate is placed on the bearing plate. The weight of the bearing plate causes the connecting frame to move down and compress the spring. The rack at the bottom of the connecting frame slides down and drives the saw tooth disk to rotate. The clamping force is evenly transmitted through the elasticity of the spring, which can offset some of the stress and avoid local overload. When the spring is subjected to vibration, it produces elastic deformation, which absorbs and buffers the vibration energy and can further improve the vibration resistance of the bearing plate. Attached Figure Description
[0023] Figure 1 This is a perspective view of a stainless steel grating anti-deformation welding device proposed in this utility model; Figure 2 This is a front view of a stainless steel grating anti-deformation welding device proposed in this utility model; Figure 3 This is a partial structural exploded view of a stainless steel grating anti-deformation welding device proposed in this utility model; Figure 4 This is a schematic diagram of the support mechanism of a stainless steel grating anti-deformation welding device proposed in this utility model; Figure 5 This is a partial structural schematic diagram of a stainless steel grating anti-deformation welding device proposed in this utility model.
[0024] Legend: 1. Base; 2. Clamping mechanism; 201. Fixing rod; 202. Clamping plate; 203. Rotating shaft; 204. Mounting plate; 205. Drive assembly; 2051. Motor; 2052. Connecting plate; 2053. Connecting block; 206. Support arm; 207. Fixing plate; 208. Long plate; 209. Slider; 210. Base plate; 211. Slide rail; 3. Support mechanism; 301. Bearing plate; 302. Spring; 303. Fixing block; 304. Limiting frame; 305. Support frame; 306. Transmission assembly; 3061. Rack; 3062. Serrated disc; 3063. Connecting rod; 3064. Mounting block; 307. Connecting frame; 4. Display; 5. Bracket; 6. Power cabinet; 7. Controller. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a stainless steel grating anti-deformation welding device, comprising a base 1, a clamping mechanism 2 installed on the inner wall of the base 1 for clamping the grating plate, and a support mechanism 3 installed on the top of the clamping mechanism 2 for supporting the grating plate; the clamping mechanism 2 includes a fixing plate 207, which is fixedly connected to the upper part of the inner wall of the base 1, and an mounting plate 204 is fixedly connected to the top wall of the fixing plate 207. Rotating shafts 203 are rotatably connected to the left and right sides of the top wall of the mounting plate 204, and supports are fixedly connected to the front and rear sides of the outer wall of the rotating shaft 203. The support arm 206 and the base 1 have a base plate 210 fixedly connected to the middle of their inner bottom wall. Slide rails 211 are fixedly connected to the front and rear sides of the top wall of the base plate 210. A slider 209 is slidably connected to the outer wall of the slide rails 211. A long plate 208 is fixedly connected to the top wall of the slider 209. The long plate 208 is connected to the support arm 206. A drive assembly 205 is installed at the bottom of the mounting plate 204. The drive assembly 205 includes a motor 2051, which is fixedly connected to the middle of the bottom wall of the mounting plate 204. A connecting block 2053 is fixedly connected to the output end of the motor 2051. Connecting plates 2052 are rotatably connected to the front and rear sides of the top wall of the 3. The end of the motor 2051 is rotatably connected to the middle of the top wall of the long plate 208. A clamping plate 202 is fixedly connected to the inner side of the upper middle part of the outer wall of the support arm 206. Multiple fixing rods 201 are fixedly connected at equal intervals to the outer side of the upper middle part of the outer wall of the support arm 206. The rotational motion of the motor 2051 is precisely converted into the motion of other components through a series of mechanical transmission components. First, the rotation of the motor 2051 drives the connecting block 2053 to rotate, and then the rotation of the connecting block 2053 pulls the connecting plate 2052, causing the connecting plate 2052 to be stretched. Then, pull the slider 209, causing the long plate 208 to move left and right along the outer wall of the slide rail 211. The movement of the long plate 208 pulls the support arm 206, causing the support arm 206 to drive the rotating shaft 203 to rotate. The rotation of the rotating shaft 203 causes the clamping plate 202 at the top of the support arm 206 to converge towards the center, ensuring that the outer wall of the clamping plate 202 and the two sides of the grating plate always remain in close contact, preventing the grating plate from deforming due to positional displacement during the welding process. In addition, the design of the fixing rod 201 allows it to adapt to grating plates of different heights, thereby significantly improving the range of use and flexibility of the equipment. Specifically, the rotation of motor 2051 drives the connecting block 2053 to rotate. The rotation of connecting block 2053 pulls the connecting plate 2052. The connecting plate 2052 pulls the slider 209, thereby causing the long plate 208 to move left and right on the outer wall of the slide rail 211. The movement of the long plate 208 pulls the support arm 206, causing the support arm 206 to drive the rotating shaft 203 to rotate. The rotation of the rotating shaft 203 causes the clamping plate 202 at the top of the support arm 206 to converge towards the middle, so that the outer wall of the clamping plate 202 is always in contact with the two sides of the grating plate, preventing the grating plate from shifting position and causing deformation during welding. The fixing rod 201 can adapt to grating plates of different heights, improving the range of applications.
[0027] Reference Figure 3 , Figure 4 and Figure 5 The support mechanism 3 includes a fixing block 303, which is equidistantly fixed to the middle of the top wall of the mounting plate 204. A support frame 305 is fixedly connected to the top of the fixing block 303. Limiting frames 304 are installed on the upper left and right sides of the outer wall of the support frame 305. A connecting frame 307 is rotatably connected to the top of the support frame 305. A spring 302 is installed on the outer wall of the connecting frame 307. A bearing plate 301 is installed on the top of the connecting frame 307 and the limiting frame 304. A transmission assembly 306 is installed on the lower middle part of the outer wall of the support frame 305. The transmission assembly 306 includes a mounting block 3064, which is fixedly connected to the lower middle part of the outer wall of the support frame 305. A connecting rod 3063 is rotatably connected to the left side of the outer wall of the mounting block 3064. A toothed disc 3062 is fixedly connected to the left end of the connecting rod 3063. A rack 3061 is meshed with the rear side of the outer wall of the toothed disc 3062. The rack 3061 is slidably connected to the outer wall of the support frame 305. The top of the rack 3061 is connected to the connecting frame 307. The bearing plate 301 and the limiting frame 304 are firmly fixed together, providing a stable support platform for the placement of the grating plate. When the grating plate is placed on the bearing plate 301, the bearing plate 301 causes the connecting frame 307 to move down due to the weight it bears, thereby compressing the spring 302. The rack 3061 at the bottom of the connecting frame 307 slides down accordingly and drives the sawtooth disk 3062 to rotate through the gear transmission mechanism. The elasticity of the spring 302 evenly transmits the clamping force, effectively dispersing some of the stress and avoiding damage to the mechanical parts due to local overload. When the spring 302 is subjected to vibration, it will produce elastic deformation. This deformation can absorb and buffer vibration energy, thereby further improving the vibration resistance of the bearing plate 301 and ensuring the stability and reliability of the entire system. Specifically, the bearing plate 301 is fixedly connected to the limiting frame 304. The grid plate is placed on the bearing plate 301. The weight of the bearing plate 301 causes the connecting frame 307 to move down and compress the spring 302. The rack 3061 at the bottom of the connecting frame 307 slides down and drives the saw tooth disk 3062 to rotate. The clamping force is evenly transmitted through the elasticity of the spring 302, which can offset some of the stress and avoid local overload. When the spring 302 is subjected to vibration, it undergoes elastic deformation, which absorbs and buffers vibration energy, and can further improve the vibration resistance of the bearing plate 301.
[0028] Reference Figure 1 , Figure 2 and Figure 3 A controller 7 is installed on the right side of the outer wall of the base 1. A power cabinet 6 is fixedly connected to the right side of the controller 7. A bracket 5 is fixedly connected to the top left side of the controller 7. A monitor 4 is fixedly connected to the front side of the outer wall of the bracket 5. Specifically, controller 7 is responsible for receiving sensor signals, processing data, executing logical judgments, and controlling the actions of each execution component to achieve the preset and real-time adjustment of anti-deformation process parameters. Power cabinet 6 provides stable power to the electrical components in the device, and at the same time realizes power distribution, overload protection and electromagnetic compatibility design. Bracket 5 is used to support display 4. Display 4 serves as a human-machine interface, displaying device operating parameters and process status, and allowing operators to input instructions and modify parameters.
[0029] Working principle: The rotational motion of motor 2051 is precisely converted into the motion of other components through a series of mechanical transmission components. First, the rotation of motor 2051 drives the rotation of connecting block 2053, and the rotation of connecting block 2053 will pull connecting plate 2052. After being pulled, connecting plate 2052 will pull slider 209, which in turn will drive long plate 208 to move left and right on the outer wall of slide rail 211. The movement of long plate 208 will pull support arm 206, causing support arm 206 to drive rotating shaft 203 to rotate. The rotation of rotating shaft 203 causes clamping plate 202 at the top of support arm 206 to converge towards the middle, ensuring that the outer wall of clamping plate 202 is always tightly attached to both sides of the grating plate, thereby preventing the grating plate from deforming due to positional displacement during welding. In addition, the design of fixing rod 201 allows it to adapt to grating plates of different heights, thereby greatly improving the application range and flexibility of the equipment. The support plate 301 is firmly fixed to the limiting frame 304, providing a stable platform for placing the grating plate. When the grating plate is placed on the support plate 301, the support plate 301 will cause the connecting frame 307 to move downward due to the weight, compressing the spring 302. The rack 3061 at the bottom of the connecting frame 307 will slide downward and drive the saw tooth disk 3062 to rotate through the gear transmission mechanism. The elasticity of the spring 302 evenly transmits the clamping force, which can effectively offset part of the stress and avoid damage to mechanical parts due to local overload. When the spring 302 is subjected to vibration, it will produce elastic deformation. This deformation can absorb and buffer vibration energy, thereby further improving the vibration resistance of the support plate 301 and ensuring the stability and reliability of the entire system.
[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A stainless steel grating anti-deformation welding device, comprising a base (1), characterized in that: The inner wall of the base (1) is equipped with a clamping mechanism (2), which is used to clamp the grid plate. The top of the clamping mechanism (2) is equipped with a support mechanism (3), which is used to support the grid plate. The clamping mechanism (2) includes a fixing plate (207), which is fixedly connected to the upper part of the inner wall of the base (1). The top wall of the fixing plate (207) is fixedly connected to an mounting plate (204). The top wall of the mounting plate (204) is rotatably connected to a rotating shaft (203) on both the left and right sides. The outer wall of the rotating shaft (203) is fixedly connected to a support arm (206) on both the front and rear sides. The bottom wall of the base (1) is fixedly connected to a base plate (210). The top wall of the base plate (210) is fixedly connected to a slide rail (211) on both the front and rear sides. The outer wall of the slide rail (211) is slidably connected to a slider (209). The top wall of the slider (209) is fixedly connected to a long plate (208). The long plate (208) is connected to the support arm (206) respectively. The bottom of the mounting plate (204) is equipped with a drive assembly (205).
2. The anti-deformation welding device for stainless steel gratings according to claim 1, characterized in that: The drive assembly (205) includes a motor (2051), which is fixedly connected to the middle of the bottom wall of the mounting plate (204). The output end of the motor (2051) is fixedly connected to a connecting block (2053). The front and rear sides of the top wall of the connecting block (2053) are rotatably connected to connecting plates (2052). The end of the motor (2051) is rotatably connected to the middle of the top wall of the long plate (208).
3. The anti-deformation welding device for stainless steel gratings according to claim 1, characterized in that: A clamping plate (202) is fixedly connected to the inner side of the upper middle part of the outer wall of the support arm (206), and multiple fixing rods (201) are fixedly connected at equal intervals to the outer side of the upper middle part of the outer wall of the support arm (206).
4. The anti-deformation welding device for stainless steel gratings according to claim 1, characterized in that: The support mechanism (3) includes a fixing block (303), which is fixedly connected at equal intervals to the middle of the top wall of the mounting plate (204). A support frame (305) is fixedly connected to the top of the fixing block (303), and a limit frame (304) is installed on the upper left and right sides of the outer wall of the support frame (305).
5. The anti-deformation welding device for stainless steel gratings according to claim 4, characterized in that: The top of the support frame (305) is rotatably connected to a connecting frame (307), and a spring (302) is installed on the outer wall of the connecting frame (307). A bearing plate (301) is installed on the top of the connecting frame (307) and the limiting frame (304). A transmission assembly (306) is installed on the lower middle part of the outer wall of the support frame (305).
6. The anti-deformation welding device for stainless steel gratings according to claim 5, characterized in that: The transmission assembly (306) includes a mounting block (3064), which is fixedly connected to the lower part of the outer wall of the support frame (305). A connecting rod (3063) is rotatably connected to the left side of the outer wall of the mounting block (3064). A toothed disc (3062) is fixedly connected to the left end of the connecting rod (3063). A rack (3061) is meshed with the rear side of the outer wall of the toothed disc (3062). The rack (3061) is slidably connected to the outer wall of the support frame (305). The top end of the rack (3061) is connected to the connecting frame (307).
7. The anti-deformation welding device for stainless steel gratings according to claim 1, characterized in that: A controller (7) is installed on the right side of the outer wall of the base (1), and a power supply cabinet (6) is fixedly connected to the right side of the controller (7).
8. The anti-deformation welding device for stainless steel gratings according to claim 7, characterized in that: A bracket (5) is fixedly connected to the top left side of the controller (7), and a display (4) is fixedly connected to the front side of the outer wall of the bracket (5).