Stainless steel weld joint polishing device
By combining the direct-drive grinding component and the adjustment component, the problem of weld smoothness depending on the operator's skill level is solved, and a highly efficient and stable weld grinding effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-16
- Publication Date
- 2026-04-14
AI Technical Summary
In existing technologies, the smoothness of the weld seam after stainless steel welding depends on the operator's skill level, resulting in a low yield rate.
It adopts a direct-drive grinding component and an adjustment component, which directly drives the grinding wheel with a motor and simulates the angle and height changes of manual grinding to achieve mechanized angle and height adjustment.
It improved the smoothness of the weld, ensured the yield rate, and increased grinding efficiency.
Smart Images

Figure CN224115804U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stainless steel weld grinding technology, and in particular to a stainless steel weld grinding device. Background Technology
[0002] Stainless steel weld grinding is a crucial process involving mechanical or manual surface treatment of welded stainless steel joints to remove oxide layers, weld slag, and unevenness, thereby improving appearance quality and corrosion resistance. Common tools include angle grinders and belt sanders with different grit wheels or sandpaper. During operation, it is essential to control the grinding force and direction to avoid overheating or scratching the substrate. The finished surface should exhibit a uniform metallic luster and be free of visible defects. If necessary, acid pickling and passivation can be performed to restore the passivation film. This process is widely used in food machinery, chemical equipment, and building decoration, directly impacting product aesthetics and lifespan.
[0003] Chinese patent CN222767976U discloses a stainless steel weld grinding device, belonging to the field of stainless steel pipe technology. The device includes a worktable with a water storage tank in the center. A filter assembly is detachably installed inside the water storage tank. An electric slide rail is installed on one side of the worktable, and an electric slider is installed inside the slide rail. A support frame is fixedly connected to the electric slider, and a grinding assembly is located at the bottom of the support frame. A spray assembly for cooling the steel pipe is also provided on the worktable. By setting up the spray assembly, when grinding with a grinding wheel, water is sprayed through the outlet pipe to clean and cool the weld joint of the steel pipe, improving grinding efficiency. Simultaneously, the water flow washes away iron filings from the surface of the steel pipe. When the iron filings and water flow into the water storage tank, a filter frame filters the iron filings, and the water is filtered into the water storage tank, thus achieving water resource recycling and reuse.
[0004] In existing technologies, stainless steel welds often result in protruding weld seams after welding. Workers then use handheld high-speed grinding wheels to polish the surface of these seams. However, this handheld grinding method heavily relies on the operator's skill level, making it difficult to guarantee a high yield rate for the smoothness of the polished weld seam. Therefore, improvements are needed. Utility Model Content
[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a stainless steel weld grinding device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A stainless steel weld grinding device includes a base plate and further includes:
[0008] The adjustment assembly includes an angle adjustment shaft, a sleeve is mounted on the surface of the angle adjustment shaft, a locking element is provided on one side of the sleeve, and the locking element is pressed against the surface of the angle adjustment shaft on one side.
[0009] A further technical solution includes an adjustment component that also includes a slider mounted on one side of the sleeve, a vertical rod mounted on one side of the slider, a groove provided on one side of the vertical rod, and the slider slidingly disposed inside the groove.
[0010] A further technical solution involves mounting a hydraulic cylinder on one side of the slider, with the hydraulic cylinder installed on the top of the upright.
[0011] Further technical solutions also include:
[0012] The direct drive grinding assembly includes a bushing fixedly mounted on one side of the angle adjustment shaft, a sleeve inserted into the bushing, and a bearing installed inside the sleeve.
[0013] A further technical solution involves fixing a motor to one side of the sleeve, with a grinding wheel installed at the motor's output end.
[0014] In a further technical solution, the motor's output shaft is rotatably mounted inside the bearing.
[0015] A further technical solution involves fixing the base plate to one side of the upright, with screw holes around the perimeter of the base plate.
[0016] Compared with the prior art, the present invention provides a stainless steel weld grinding device, which has the following beneficial effects:
[0017] This invention utilizes an adjustable component that simulates the changes in angle and height of the operator during grinding, allowing for real-time adjustment of the grinding position and angle. The stability of the mechanical device prevents uneven grinding caused by manual operation. Furthermore, the device achieves high-efficiency grinding through a motor-driven direct-drive grinding wheel. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a stainless steel weld grinding device proposed in this utility model.
[0019] Figure 2 This is a schematic diagram of the stepped cross-section of a stainless steel weld grinding device proposed in this utility model.
[0020] Figure 3 This is an exploded view of the stainless steel weld grinding device proposed in this utility model.
[0021] Figure 4This is a structural schematic diagram of the front view of a stainless steel weld grinding device proposed in this utility model.
[0022] In the diagram: 1. Base plate; 2. Direct drive grinding assembly; 3. Adjustment assembly; 4. Angle adjustment shaft; 5. Sleeve; 6. Locking component; 7. Slider; 8. Upright rod; 9. Slide groove; 10. Hydraulic cylinder; 11. Sleeve; 12. Bearing; 13. Bushing; 14. Motor; 15. Grinding wheel; 16. Screw hole. Detailed Implementation
[0023] 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 skilled in the art without creative effort are within the scope of protection of the present utility model. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of the present utility model.
[0024] Example 1: Refer to Figure 1 - Figure 4 A stainless steel weld grinding device, comprising a base plate 1, and further comprising:
[0025] The adjustment assembly 3 includes an angle adjustment shaft 4, which can adjust the rotation angle inside a sleeve 5. A sleeve 5 is mounted on the surface of the angle adjustment shaft 4, and a locking member 6 is provided on one side of the sleeve 5 to lock the installation angle of the shaft inside the sleeve 5. One side of the locking member 6 is pressed against the surface of the angle adjustment shaft 4.
[0026] The stainless steel weld grinding device further includes an adjusting component 3 with a slider 7 mounted on one side of the sleeve 5. The slider 7 can slide up and down inside the slide groove 9 to achieve height adjustment. A vertical rod 8 is mounted on one side of the slider 7, and a slide groove 9 is provided on one side of the vertical rod 8. The slider 7 is slidably disposed inside the slide groove 9.
[0027] In the stainless steel weld grinding device, a hydraulic cylinder 10 is mounted on one side of the slider 7. The hydraulic cylinder 10 is the component that drives the slider 7 to move up and down. The hydraulic cylinder 10 is mounted on the top of the upright 8.
[0028] The stainless steel weld grinding device further includes:
[0029] The direct drive grinding assembly 2 includes a bushing 13 fixedly installed on one side of the angle adjustment shaft 4. The bushing 13 is used to connect and install the sleeve 11. The sleeve 11 is inserted into the bushing 13. The bearing 12 is installed inside the sleeve 11. The bearing 12 is a rotation support component for the motor 14.
[0030] The stainless steel weld grinding device has a motor 14 fixedly installed on one side of the sleeve 11, and a grinding wheel 15 is installed at the output end of the motor 14. The motor 14 directly drives the grinding wheel 15 to rotate.
[0031] In the stainless steel weld grinding device, the output shaft of the motor 14 is rotatably mounted inside the bearing 12.
[0032] The stainless steel weld grinding device has a base plate 1 fixedly installed on one side of the upright 8, and screw holes 16 are provided around the periphery of the base plate 1. The screw holes 16 are the structure for fixing the base plate 1.
[0033] Working principle:
[0034] To avoid the following technical defects in the prior art: "In the prior art, after stainless steel is welded, protruding weld seams will appear. At this time, workers will use a hand-held high-speed grinding wheel to grind the surface of the weld seam. However, this hand-held grinding method relies heavily on the operator's skill level, which makes it impossible to guarantee the smoothness of the weld seam after grinding and thus the yield rate cannot be guaranteed. Therefore, an improvement is needed." This utility model specifically proposes a direct-drive grinding component 2 and an adjustment component 3;
[0035] Direct drive grinding component 2:
[0036] This component primarily achieves the effect of direct grinding driven by motor 14. Its main structure includes a drive component: motor 14, grinding wheel 15; and support components: bushing 13, sleeve 11, and bearing 12. Motor 14 directly drives the grinding wheel 15 to rotate via its output shaft, increasing the grinding torque.
[0037] Adjustment component 3:
[0038] The main function of the adjusting component 3 is to mimic the effect of manual grinding, providing mechanical adjustment in both the angular and grinding height directions. The angle adjusting shaft 4 can rotate inside the sleeve 5 to achieve angle adjustment, and is locked in place by the locking component 6. The slider 7 on one side of the sleeve 5 can slide up and down in the groove 9 inside the upright 8, driven by the hydraulic cylinder 10. This up-and-down driving mechanism achieves position adjustment in the height direction.
[0039] In existing technologies, stainless steel welds often result in prominent weld seams after welding. Workers typically use a handheld high-speed grinding wheel to polish the surface of these seams. However, this handheld grinding method heavily relies on the operator's skill level, leading to inconsistent weld smoothness and a low yield rate. Therefore, improvements are needed. This invention addresses this issue by incorporating an adjustment component that simulates the operator's angle and height variations during grinding, allowing for real-time adjustment of the grinding position and angle. The stability of the mechanical device prevents uneven grinding caused by handheld operation. Furthermore, this device utilizes a motor to directly drive the grinding wheel, achieving highly efficient grinding.
[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. The above description is merely a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A stainless steel weld grinding device, comprising a base plate (1), characterized in that, Also includes: Adjustment component (3), the adjustment component (3) includes an angle adjustment shaft (4), a sleeve (5) is mounted on the surface of the angle adjustment shaft (4), a locking member (6) is provided on one side of the sleeve (5), and one side of the locking member (6) is pressed and mounted on the surface of the angle adjustment shaft (4).
2. The stainless steel weld grinding device according to claim 1, characterized in that, The adjustment assembly (3) also includes a slider (7) installed on one side of the sleeve (5), a vertical rod (8) is installed on one side of the slider (7), a groove (9) is provided on one side of the vertical rod (8), and the slider (7) is slidably disposed inside the groove (9).
3. The stainless steel weld grinding device according to claim 2, characterized in that, A hydraulic cylinder (10) is mounted on one side of the slider (7), and the hydraulic cylinder (10) is mounted on the top of the upright (8).
4. The stainless steel weld grinding device according to claim 1, characterized in that, Also includes: A direct-drive grinding assembly (2) includes a bushing (13) fixedly installed on one side of an angle adjustment shaft (4), a sleeve (11) is inserted into the bushing (13), and a bearing (12) is installed inside the sleeve (11).
5. A stainless steel weld grinding device according to claim 4, characterized in that, A motor (14) is fixedly installed on one side of the sleeve (11), and a grinding wheel (15) is installed at the output end of the motor (14).
6. A stainless steel weld grinding device according to claim 5, characterized in that, The output shaft of the motor (14) is rotatably mounted inside the bearing (12).
7. A stainless steel weld grinding device according to claim 2, characterized in that, The base plate (1) is fixedly installed on one side of the upright (8), and screw holes (16) are provided around the perimeter of the base plate (1).
Citation Information
Patent Citations
Stainless steel weld joint polishing device
CN222767976U