Weld seam polishing device
By using a weld grinding device with an angled grinding disc to the weld seam, the problems of low efficiency and unstable quality in traditional manual grinding have been solved. This device achieves automated, uniform, and smooth weld grinding, improving efficiency and grinding disc life.
Patent Information
- Application Number
- CN202522029566.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-22
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-22
AI Technical Summary
Traditional manual polishing methods suffer from low efficiency, poor quality stability, and difficulty in maintaining constant polishing pressure and angle, resulting in uneven polishing and over- or under-polished areas.
Design a weld grinding device that uses an inclined grinding disc at a 30°±15° angle to the weld. The grinding disc is driven to rotate by a motor and works with a clamp and a limiting block to achieve automated grinding, ensuring uniform force on the grinding disc and improving grinding accuracy and quality.
It achieves uniformity and smoothness in weld grinding, reduces the risk of weld fatigue cracking, improves grinding efficiency and grinding disc lifespan, and reduces manual labor intensity.
Smart Images
Figure CN224674515U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical manufacturing technology, and in particular relates to a weld grinding device. Background Technology
[0002] In the welding process of water-cooled plates, weld grinding is a key process to ensure sealing and appearance quality. Traditional manual grinding methods have problems such as low work efficiency and poor quality stability, specifically: (1) it is difficult for operators to maintain constant grinding pressure and angle, resulting in inconsistent grinding depth; (2) manual visual inspection cannot accurately control the amount of grinding, which easily leads to over-grinding or ungrinded areas.
[0003] The existing patent CN216633741U, which discloses a "Mechanism for Grinding and Removing Welds in Metal Cavities," proposes a technical solution to the above-mentioned problems. This solution uses grinding discs to grind the welds on the tubular structure, and a linear slide table drives the grinding discs to move, achieving automatic grinding. However, this solution still suffers from uneven and uneven grinding. Therefore, a new weld grinding device is still needed to solve the problems of uneven and uneven grinding. Utility Model Content
[0004] The purpose of this invention is to solve the above-mentioned problems in the prior art and to provide a weld grinding device that produces a uniform and smooth grinding effect.
[0005] The objective of this utility model is achieved through the following technical solution: A weld grinding device includes a worktable with a slide rail and a grinding mechanism. The slide rail is equipped with a fixture for accommodating a welded water-cooled plate. The grinding mechanism is mounted on a fixed base and includes at least a motor and a grinding disc. The fixed base and the motor are located outside the fixture, and the grinding disc is mounted on the output shaft of the motor and driven to rotate by the motor. In operation, the fixture moves relative to the grinding mechanism on the slide rail, and the lowest point of the grinding disc is always located on the weld of the water-cooled plate, with an angle between the plane of the grinding disc and the straight line of the weld. Before or after operation, the motor moves up and down relative to the fixture. The fixture includes at least a base plate mounted on the slide rail, and a set of limiting blocks and stops detachably mounted on the base plate. The spacing between the limiting blocks and / or the stops is adjustable. The limiting blocks are located at the top corners of the water-cooled plate, and the stops are located at both ends of the weld of the water-cooled plate.
[0006] Preferably, the motor is mounted on a motor mounting base, and the motor mounting base is connected to the mounting base via a second slide rail; the second slide rail is vertically arranged.
[0007] Preferably, the motor mounting base is further provided with a lead screw; the top end of the lead screw passes through and is fixed to the extension arm of the mounting base, and the bottom end of the lead screw passes through the motor mounting base; rotating the lead screw drives the motor mounting base to move on the second slide rail.
[0008] Preferably, the center of the grinding disc is sleeved on the output shaft of the motor and its installation position is fixed by a locking nut, and the width of the grinding disc is not less than the width of the weld of the water-cooled plate.
[0009] Preferably, the grinding disc is a flap wheel; a protective shell is fitted on the top of the grinding disc, and the protective shell is fixedly connected to the motor mounting base through a connecting piece.
[0010] Preferably, the angle between the plane of the grinding disc and the weld is within the range of 30°±15°.
[0011] Preferably, there are two base plates arranged in parallel, and each base plate has at least one receiving groove for accommodating the first connecting plate and a limiting groove for accommodating the water-cooling plate; the two ends of a second connecting plate are connected to the outer walls of the two base plates.
[0012] Preferably, the thickness of the stop is equivalent to the distance between the lowest point of the grinding disc and the worktable in the working state.
[0013] The advantages of this utility model's technical solution are mainly reflected in: The grinding disc has an angle between the plane of the grinding disc and the straight line of the weld (referred to as the grinding disc being tilted rather than parallel). This avoids the grinding disc from being worn more in the middle part due to the height of the weld, which would lead to uneven grinding and reduced grinding disc life. This application can distribute the force on the grinding disc, thereby making the grinding disc uniform in force and ensuring uniform and flat grinding effect. By automatically controlling the outer contour of the grinding disc with a motor to grind the weld, the wind direction of weld fatigue cracking can be reduced, the fatigue strength of the weld can be improved, and the intensity of manual labor can be reduced. By using limiting blocks to define the outer contour of the water-cooled plate and using stop blocks to define the straightness of two adjacent parts of the water-cooled plate, the stability of each part of the water-cooled plate during the grinding process is ensured, and the grinding accuracy and quality are improved. Attached Figure Description
[0014] Figure 1 : A perspective view of a preferred embodiment of the present invention; Figure 2 : Front view of a preferred embodiment of this utility model; Figure 3 Top view of a preferred embodiment of this utility model; Figure 4 : A partial hidden top view of a preferred embodiment of this utility model. Detailed Implementation
[0015] The purpose, advantages, and features of this utility model will be illustrated and explained through the following non-limiting description of preferred embodiments. These embodiments are merely typical examples of applying the technical solutions of this utility model, and all technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by this utility model.
[0016] In the description of the solution, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience and simplification of description. They 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 of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Also, in the description of the solution, with the operator as a reference, the direction closer to the operator is the proximal end, and the direction farther from the operator is the distal end.
[0017] like Figure 1 As shown, the weld grinding device includes a worktable 1, on which slide rails 11 are provided. Further, the worktable 1 has a set of mounting holes for installing the slide rails 11, and the spacing between the slide rails 11 can be adjusted according to usage requirements. Further, the slide rails 11 are provided with clamps 3 for accommodating welded water-cooled plates, the size of which can be adjusted according to the water-cooled plate model. The water-cooled plate includes at least two planar spliced parts; preferably, in this invention, the water-cooled plate is divided into three parts, and the three parts are fixed by welding after being spliced together. The number and size of the water-cooled plates can be adjusted according to usage requirements and are not limited here. In addition, a protective cover is provided on the worktable 1, which covers the outer periphery of the clamps 3.
[0018] like Figures 1 to 2 As shown, a grinding mechanism 2 is also provided on the workbench 1. The grinding mechanism 2 grinds the weld seams on the water-cooled plate to make the water-cooled plate smoother and flatter overall. The grinding mechanism 2 is set on the fixed base 20 and includes at least one motor 21 and a grinding disc 22. In this utility model, two motors 21 and grinding discs 22 are preferably provided, and each motor 21 corresponds to one grinding disc 22. Of course, in other embodiments, two or more grinding discs can be driven by one motor 21 to work simultaneously. It is only necessary to add a linkage structure between two adjacent grinding discs 22. The linkage structure can include the connecting bridge, coupling, etc. disclosed in the prior art, which will not be described in detail here.
[0019] Furthermore, such as Figures 2 to 3 As shown, the center of the grinding disc 22 is sleeved on the output shaft of the motor 21 and its installation position is fixed by a locking nut. Preferably, the width of the grinding disc 22 is designed to be no less than the width of the weld seam of the water-cooled plate. In this invention, the grinding disc 22 is preferably a flap wheel, and the grinding disc 22 is coaxially mounted on the output shaft of the motor 21. The included angle between the grinding disc 22 and the slide rail 11 is within the range of 30°±15°. The angle between the plane of the grinding disc 22 and the straight line of the weld seam of the water-cooled plate is preferably within the range of 30°±15°. By tilting the grinding disc 22, the grinding surface of the outer circumference of the grinding disc 22 is in contact with the solder (the solder seam itself) during grinding, resulting in uniform wear and consistent surface condition. This ensures a smooth grinding effect and avoids uneven weld seam grinding caused by excessive local wear. Furthermore, the edge of the grinding disc 22 cuts into the weld seam at a sharper angle, creating a "planing" effect that significantly improves the removal rate of weld residue and grinding efficiency. It also reduces ineffective friction, allowing heat to be distributed to more blades by reducing the instantaneous contact area, while allowing airflow cooling, reducing the risk of heat impact and preventing overheating and damage to the water-cooled plate material. In addition, grinding results in a finer surface texture, reducing noticeable scratches; it also prevents the grinding disc from vibrating and jumping, which could cause the grinding disc to disconnect or the motor to overload, making the grinding process more stable and extending the service life of the grinding disc. The tilt setting of the grinding disc can buffer the reaction force through the angle, making it easier to control the grinding depth and direction.
[0020] In this invention, a protective shell 221 is preferably fitted onto the top of the grinding disc 22, and the protective shell 221 is fixedly connected to the motor mounting base 210 via a connecting piece. Since welding slag, metal spatter, and other debris can affect the environment and the safety of workers during grinding, the protective shell 221 in this invention can effectively reduce the spatter area and improve safety.
[0021] like Figures 1 to 4 As shown, the fixed base 20 and the motor 21 are located outside the clamp 3, and the grinding disc 22 is mounted on the output shaft of the motor 21 and is driven to rotate by the motor 21. During operation, the lowest point of the grinding disc 22 is always located on the weld of the water-cooled plate, that is, the weld is ground by the outer contour of the grinding disc 22, which can reduce the wind direction of weld fatigue cracking and improve fatigue strength. At the same time, the clamp 3 moves relative to the grinding mechanism 2 on the slide rail 11, and the direction of movement of the clamp 3 is consistent with the setting direction of the weld. In addition, the motor 21 can be raised and lowered relative to the clamp 3 during the preparation stage or after the work is completed. Specifically, the motor 21 is mounted on the motor mounting base 210, which is connected to the mounting base 20 via a second slide rail 201; the second slide rail 201 is vertically arranged. That is, the motor mounting base 210 moves up and down on the second slide rail 201 to adjust the distance between the grinding disc 22 and the water-cooled plate, adapting to the grinding requirements of water-cooled plates and welds of different thicknesses.
[0022] Furthermore, such as Figure 1 or Figure 2 As shown, a lead screw 211 is also provided on the motor mounting base 210. The top end of the lead screw 211 passes through and is fixed to the extension arm 202 of the mounting base 20, and the bottom end of the lead screw 211 passes through the motor mounting base 210. A motor (not shown in the figure) is provided at the end of the lead screw 211, which drives and rotates the lead screw 211 to move the motor mounting base 210 on the second slide rail 201.
[0023] like Figure 1 As shown, the fixture 3 includes at least a base plate 31 disposed on the slide rail 11, and a set of limiting blocks 32 and stops 33 detachably disposed on the base plate 31. The spacing between the limiting blocks 32 and / or the stops 33 is adjustable to accommodate water-cooled plates of different sizes and confine them between the limiting blocks 32. The limiting blocks 32 are located at the top corners of the water-cooled plates, and the stops 33 are located at both ends of the weld seams of the water-cooled plates. The limiting blocks 32 define the outer contour of the water-cooled plates, and the stops 33 define the straightness of adjacent parts of the water-cooled plates, ensuring the stability of each part of the water-cooled plates during the grinding process and improving the grinding accuracy and quality.
[0024] like Figure 2 As shown, the thickness of the stop 33 is equivalent to the distance between the lowest point of the grinding disc 22 and the worktable 1 in the working state; that is, the thickness of the stop 33 is equivalent to the thickness of the water-cooled plate. The stop can ensure that the edge of the water-cooled plate will not be recessed downward in the working state, thus ensuring the surface flatness of the water-cooled plate after grinding.
[0025] Furthermore, such as Figure 4 As shown, there are two base plates 31 arranged in parallel. Each base plate 31 has at least one receiving groove for accommodating the first connecting plate 311 and a limiting groove 3101 for accommodating the water-cooling plate. A second connecting plate 312 has both ends connected to the outer walls of the two base plates 31. The clamp 3 can be moved along the slide rail 11 via the second connecting plate 312.
[0026] When grinding the back of the water-cooled plate, the first connecting plate 311 abuts against the upper surface of the water-cooled plate and limits its position. The limiting groove 3101 accommodates the reinforcing ribs on the water-cooled plate and limits the overall position of the water-cooled plate. The limiting block and the stop block then position the outer contour of the water-cooled plate, making the water-cooled plate stable and thus ensuring good grinding quality.
[0027] This utility model has many other embodiments. All technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of this utility model.
Claims
1. A weld grinding device, characterized in that: The system includes a worktable (1), on which a slide rail (11) and a grinding mechanism (2) are provided; a fixture (3) for accommodating a welded water-cooled plate is provided on the slide rail (11); the grinding mechanism (2) is mounted on a fixed base (20), and includes at least one motor (21) and a grinding disc (22); the fixed base (20) and the motor (21) are located outside the fixture (3), and the grinding disc (22) is mounted on the output shaft of the motor (21) and is driven to rotate by the motor (21); in the working state, the fixture (3) is positioned relative to the grinding mechanism on the slide rail (11). 2) The grinding disc (22) moves, and the lowest point of the grinding disc (22) is always located on the weld of the water-cooled plate, and there is an angle between the plane where the grinding disc (22) is located and the straight line where the weld is located; after the preparation work or the work is completed, the motor (21) moves up and down relative to the fixture (3); the fixture (3) includes at least a base plate (31) set on the slide rail (11), a set of limiting blocks (32) and stops (33) detachably set on the base plate (31); the distance between the limiting blocks (32) and / or the stops (33) is adjustable, the limiting blocks (32) are located at the top corner of the water-cooled plate, and the stops (33) are located at both ends of the weld of the water-cooled plate.
2. The weld grinding device according to claim 1, characterized in that: The motor (21) is mounted on the motor mounting base (210), and the motor mounting base (210) is connected to the mounting base (20) via a second slide rail (201); the second slide rail (201) is vertically mounted.
3. The weld grinding device according to claim 2, characterized in that: The motor mounting base (210) is also provided with a lead screw (211); the top end of the lead screw (211) passes through and is fixed to the extension arm (202) of the mounting base (20), and the bottom end of the lead screw (211) passes through the motor mounting base (210); rotating the lead screw (211) drives the motor mounting base (210) to move on the second slide rail (201).
4. The weld grinding device according to claim 1, characterized in that: The center of the grinding disc (22) is sleeved on the output shaft of the motor (21) and its installation position is fixed by a locking nut. The width of the grinding disc (22) is not less than the width of the weld of the water-cooled plate.
5. The weld grinding device according to claim 2, characterized in that: The grinding disc (22) is a flap wheel; a protective shell (221) is fitted on the top of the grinding disc (22), and the protective shell (221) is fixedly connected to the motor mounting base (210) through a connecting piece.
6. The weld grinding device according to claim 1, characterized in that: The angle between the plane of the grinding disc (22) and the weld is within the range of 30°±15°.
7. The weld grinding device according to claim 1, characterized in that: There are two base plates (31) arranged in parallel. Each base plate (31) has at least one receiving groove for accommodating the first connecting plate (311) and a limiting groove (3101) for accommodating the water-cooling plate. The two ends of a second connecting plate (312) are connected to the outer walls of the two base plates (31).
8. The weld grinding device according to claim 1, characterized in that... The thickness of the stop (33) is equivalent to the distance between the lowest point of the grinding disc (22) and the worktable (1) in the working state.