A sanding device for welding of a cold dryer cabinet
By designing a sanding and polishing device for the welded joints of the refrigerated dryer chassis and adopting a mobile clamping and collaborative structure, the problem of unstable clamping at the welded joints of the chassis panels was solved, the polishing accuracy and surface flatness were improved, and the quality consistency of mass production was ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI ROCKSIDE ELECTRIC CO LTD
- Filing Date
- 2025-07-27
- Publication Date
- 2026-06-19
Smart Images

Figure CN224373644U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of refrigerated air dryer processing technology, and in particular relates to a sanding and grinding device for the welded joints of a refrigerated air dryer chassis. Background Technology
[0002] The casing of a refrigerated dryer is a key component of the refrigerated dryer. As the outer shell and supporting structure of the equipment, it provides the installation foundation for the internal refrigeration system, air-water separation system, electrical control system, etc., and plays a role in bearing and protecting it. The casing is generally made of carbon steel or stainless steel and is manufactured through cutting, bending, welding and surface treatment processes, and has good mechanical strength and corrosion resistance.
[0003] After the connecting plates of the refrigerated dryer chassis are welded, the weld seams need to be sanded to ensure a smooth surface. Existing sanding equipment lacks a dedicated positioning mechanism adapted to the chassis, resulting in insufficient clamping stability and easy workpiece shaking, leading to low sanding accuracy and uneven surface roughness. Therefore, it is necessary to design a sanding device for the weld seams of the refrigerated dryer chassis. This device adopts a movable clamping and collaborative structure, which ensures that the workpiece is stable during sanding of the weld seams of the refrigerated dryer chassis connecting plates, ensuring no shaking of the workpiece during the sanding process, smoothing the surface of the weld seams, effectively avoiding defects such as uneven depth and scratches, and ensuring consistent processing quality of each chassis in production. Utility Model Content
[0004] The purpose of this utility model is to provide a sanding and grinding device for the welded joints of a refrigerated dryer chassis. It has the advantages of a movable clamping and coordinating structure that adapts to the chassis connecting plate structure, stable clamping to prevent workpiece shaking, improving the grinding accuracy and surface flatness of the weld, and ensuring consistent quality in mass production, thereby solving the aforementioned technical problems.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A sanding and polishing device for the welded joint of a refrigerated dryer casing, comprising a mounting plate, a sanding and polishing component mounted on the left side of the top of the mounting plate, an L-shaped fixing plate on the top of the sanding and polishing component, a sliding plate on the top of the L-shaped fixing plate, a cylinder mounted on the front side of the top of the L-shaped fixing plate, a connecting piece fixedly connected to the output end of the cylinder, the connecting piece fixedly connected to the sliding plate, two symmetrical L-shaped blocks fixedly connected to the top of the sliding plate, four sliding blocks slidably connected to the inner cavity of the L-shaped blocks, two connecting blocks fixedly connected to the top of the four sliding blocks, a triangular plate fixedly connected to the top of the two connecting blocks by a fixing plate, a threaded rod penetrating the surface of the triangular plate, the threaded rod fixedly connected to the triangular plate by a nut, the threaded rod movably connected to the L-shaped block, and a positioning block provided on the inner side of the L-shaped block.
[0006] Preferably, the front side of the top of the mounting plate is fixedly connected to two symmetrical support legs, and the two support legs are fixedly connected to the L-fixed plate.
[0007] Preferably, the top of the L-shaped fixing plate is fixedly connected to three rails, the top of the three rails is slidably connected to three sliders, and the three sliders are fixedly connected to the sliding plate.
[0008] Preferably, the inner cavity of the L-shaped block is provided with two symmetrical springs, and the two ends of the springs are welded to the holes in the inner cavity of the triangular plate and the L-shaped block, respectively.
[0009] Preferably, a fixing rod is fixedly connected to the rear of the triangular plate on the side away from the L-shaped block, and the fixing rod is fixedly connected to the positioning block.
[0010] The beneficial effects of this utility model are:
[0011] 1. This utility model places the refrigerated dryer chassis plate inside two L-shaped blocks. Through the coordinated use of a triangular plate, a sliding block, and a positioning block, the triangular plate moves downward on the surface of the threaded rod. The triangular plate drives the positioning block to clamp and fix the chassis plate through the fixing rod. Finally, the sliding plate moves the sanding and grinding component to grind the chassis plate. This achieves the purpose of adapting the movable clamping collaborative structure to the chassis connecting plate structure, ensuring stable clamping to prevent workpiece shaking, improving the grinding accuracy and surface flatness of the weld, and ensuring the consistency of mass production processing quality.
[0012] 2. By setting up support legs, this utility model enables the two support legs to provide stable vertical support for the L-shaped fixing plate, ensuring that the components at the top of the L-shaped fixing plate are relatively stable when used on the top of the L-shaped fixing plate.
[0013] 3. This utility model uses the combined use of a track and a slider so that when the slide slides on top of the track, the track guides the slider, ensuring that the slide does not deviate from its position when it slides on top of the L-shaped fixed plate. Attached Figure Description
[0014] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention.
[0015] Figure 1 This is a front view schematic diagram of one embodiment of the present utility model;
[0016] Figure 2 This is a top view schematic diagram of one embodiment of the present invention;
[0017] Figure 3 This is a three-dimensional schematic diagram of the track and slider according to one embodiment of the present invention;
[0018] Figure 4 This is a three-dimensional schematic diagram of an L-shaped block and a triangular plate according to an embodiment of the present invention;
[0019] Figure 5 This is one embodiment of the present utility model. Figure 1 A magnified view of point A in the middle.
[0020] The attached diagram lists the components represented by each number as follows:
[0021] 1. Mounting plate, 2. Sanding and polishing assembly, 3. Support leg, 4. L-shaped fixing plate, 5. Track, 6. Slider, 7. Slide plate, 8. Cylinder, 9. Connector, 10. L-shaped block, 11. Sliding block, 12. Connecting block, 13. Triangle plate, 14. Spring, 15. Threaded rod, 16. Fixing rod, 17. Positioning block. Detailed Implementation
[0022] In the following description, embodiments of the sanding and polishing device for the welded joints of the refrigerated dryer casing of this utility model will be described with reference to the accompanying drawings.
[0023] Figure 1-5 This invention illustrates a sanding and polishing device for the welded joints of a refrigerated dryer casing according to an embodiment of the present invention. It includes a mounting plate 1, a sanding and polishing assembly 2 mounted on the top left side of the mounting plate 1, and an L-shaped fixing plate 4 mounted on the top of the sanding and polishing assembly 2. Two symmetrical support legs 3 are fixedly connected to the front side of the top of the mounting plate 1, and the two support legs 3 are fixedly connected to the L-shaped fixing plate 4. The support legs 3 provide stable vertical support to the L-shaped fixing plate 4, ensuring the stability of the components on top of the L-shaped fixing plate 4 during use. Three tracks 5 are fixedly connected to the top of the L-shaped fixing plate 4, and three sliders 6 are slidably connected to the top of the three tracks 5. The three sliders 6 are fixedly connected to a slide plate 7. Through the cooperation of the tracks 5 and the sliders 6, the tracks 5 guide the sliders 6 as they slide on top of the tracks 5, ensuring that the slide plate 7 does not deviate from its position when sliding on top of the L-shaped fixing plate 4. A sliding plate 7 is provided on the top of the L-shaped plate 4. A cylinder 8 is installed on the front side of the top of the L-shaped plate 4. A connector 9 is fixedly connected to the output end of the cylinder 8. The connector 9 is fixedly connected to the sliding plate 7. Two symmetrical L-shaped blocks 10 are fixedly connected to the top of the sliding plate 7. Four sliding blocks 11 are slidably connected to the inner cavity of the L-shaped blocks 10. Two connecting blocks 12 are fixedly connected to the top of the four sliding blocks 11. Triangular plates 13 are fixedly connected to the top of the two connecting blocks 12 through fixing plates. Two symmetrical springs 14 are provided in the inner cavity of the L-shaped blocks 10. The two ends of the springs 14 are welded to the holes of the triangular plates 13 and the inner cavity of the L-shaped blocks 10, respectively. A threaded rod 15 is provided through the surface of the triangular plates 13. The threaded rod 15 is fixedly connected to the triangular plates 13 through nuts. The threaded rod 15 is movably connected to the L-shaped blocks 10. A fixing rod 16 is fixedly connected to the rear of the side of the triangular plates 13 away from the L-shaped blocks 10. The fixing rod 16 is fixedly connected to the positioning block 17. A positioning block 17 is provided on the inner side of the L-shaped blocks 10.
[0024] Working Principle: When using this utility model, the user first places the refrigerated dryer casing plate inside the two L-shaped blocks 10, loosens the nuts, and releases the threaded rod 15 from the triangular plate 13, as the threaded rod 15 is fixed to the triangular plate 13 by the nuts. The triangular plate 13 will move on the surface of the threaded rod 15. During the downward movement of the triangular plate 13, the connecting block 12 and the sliding block 11 move accordingly, and the spring 14 is compressed. The triangular plate 13 drives the positioning block 17 to approach the casing plate through the fixing rod 16 until the positioning block 17 is in close contact with the casing plate, thus clamping and fixing the casing plate. Finally, the nut is rotated to tighten the threaded rod 15 and the triangular plate 11. Angle plate 13 is fixed to ensure its stability. Then, cylinder 8 is started, and the output end pushes slide plate 7 through connector 9. The slider 6 at the bottom of slide plate 7 slides along track 5 on fixed plate 4 to ensure stable movement of slide plate 7. Slide plate 7 drives the fixed chassis plate close to sanding and polishing assembly 2. Sanding and polishing assembly 2 performs sanding and polishing operation on the welded joint of chassis plate. During polishing, the chassis plate is firmly clamped to avoid shaking, ensuring polishing accuracy and surface flatness. After polishing is completed, threaded rod 15 is rotated in the opposite direction, spring 14 returns to its original position, driving triangle plate 13 to move upward. The chassis plate is then released, and the polished workpiece can be taken out.
[0025] In summary, this sanding and grinding device for the welded joints of the refrigerated dryer chassis achieves the following: the chassis plate is placed inside two L-shaped blocks 10. Through the coordinated use of the triangular plate 13, sliding block 11, and positioning block 17, the triangular plate 13 moves downward on the surface of the threaded rod 15. The triangular plate 13 drives the positioning block 17 to clamp and fix the chassis plate via the fixing rod 16. Finally, the sliding plate 7 moves the sanding and grinding assembly 2 to grind the chassis plate. This achieves the goals of adapting the movable clamping and coordinating structure to the chassis connecting plate structure, ensuring stable clamping to prevent workpiece shaking, improving the grinding accuracy and surface flatness of the weld, and ensuring consistent quality in mass production.
Claims
1. A cold dryer cabinet weld sanding device, characterized in that, Includes a mounting plate (1), on the top left side of the mounting plate (1) a sanding and polishing assembly (2), on the top of the sanding and polishing assembly (2) an L-shaped fixing plate (4), on the top of the L-shaped fixing plate (4) a sliding plate (7), on the front side of the top of the L-shaped fixing plate (4) a cylinder (8), the output end of the cylinder (8) is fixedly connected to a connector (9), the connector (9) is fixedly connected to the sliding plate (7), and on the top of the sliding plate (7) two symmetrical L-shaped blocks (10) are fixedly connected. (10) has four sliding blocks (11) slidably connected to its inner cavity. Two connecting blocks (12) are fixedly connected to the top of the four sliding blocks (11). Triangle plates (13) are fixedly connected to the top of the two connecting blocks (12) through fixing plates. A threaded rod (15) is provided through the surface of the triangle plate (13). The threaded rod (15) is fixedly connected to the triangle plate (13) through a nut. The threaded rod (15) is movably connected to the L-shaped block (10). A positioning block (17) is provided on the inner side of the L-shaped block (10).
2. A cold dryer cabinet welding place sanding and polishing device according to claim 1, characterized in that, The front side of the top of the mounting plate (1) is fixedly connected to two symmetrical support legs (3), and the two support legs (3) are fixedly connected to the L-fixed plate (4).
3. A cold dryer cabinet welding place sanding and polishing device according to claim 2, characterized in that, The top of the L-fixed plate (4) is fixedly connected to three rails (5), and the top of the three rails (5) is slidably connected to three sliders (6), which are fixedly connected to the slide plate (7).
4. A cold dryer cabinet welding place sanding and polishing device according to claim 3, characterized in that, The inner cavity of the L-shaped block (10) is provided with two symmetrical springs (14), and the two ends of the springs (14) are welded to the holes in the inner cavity of the triangular plate (13) and the L-shaped block (10), respectively.
5. A cold dryer cabinet welding place sanding and polishing device according to claim 4, characterized in that, A fixing rod (16) is fixedly connected to the back of the triangular plate (13) away from the L-shaped block (10), and the fixing rod (16) is fixedly connected to the positioning block (17).