A chemical polishing device for preparing stainless steel castings

By designing a reciprocating horizontal movement of the storage tank, the movement of chemical reagents is used to flush the stainless steel castings, solving the problem of poor polishing effect in existing equipment and achieving better impurity cleaning and polishing results.

CN224280460UActive Publication Date: 2026-05-26YONGJIA SHENGSHAN CASTING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YONGJIA SHENGSHAN CASTING CO LTD
Filing Date
2025-07-17
Publication Date
2026-05-26

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Abstract

This invention provides a chemical polishing device for preparing stainless steel castings, relating to the field of chemical polishing technology for stainless steel castings. The device includes a column fixedly installed on the surface of a base plate and a sliding ring that slides along the outer wall. The sliding ring and a storage tank are hinged together by a hinge plate. A spring is fixedly installed between the circular plate and the sliding ring. An extension plate is fixedly installed on the side wall of the sliding ring, and a positioning ring is fixedly installed at the end of the extension plate away from the sliding ring. The auxiliary device also includes a vertical plate fixedly installed on the surface of the base plate and a motor fitted onto its surface. A special-shaped gear is fixedly installed at the output end of the motor via a coupling. This invention, through the auxiliary device, allows the storage tank to reciprocate horizontally, thereby moving the chemical reagents contained inside the storage tank. This movement washes over the stainless steel castings placed in the support frame, effectively removing impurities adhering to the surface of the stainless steel castings and improving the polishing effect.
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Description

Technical Field

[0001] This utility model relates to the field of chemical polishing technology for stainless steel castings, and in particular to a chemical polishing device for preparing stainless steel castings. Background Technology

[0002] Chemical polishing is a method that uses the chemical etching effect of chemical reagents to selectively dissolve uneven areas on the sample surface, eliminating scratches and smoothing the surface. Chemical polishing can be used as a pretreatment step for electroplating, or it can be used directly after polishing with necessary protective measures.

[0003] Some stainless steel castings require chemical polishing during production and processing. Existing chemical polishing equipment for stainless steel castings generally involves placing the castings into a container filled with chemical reagents for etching. Since the chemical reagents inside the container are static, the polishing effect is not very good, and some impurities on the surface of the stainless steel castings may not be easily removed. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned above in the background art by proposing a chemical polishing device for preparing stainless steel castings.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a chemical polishing device for preparing stainless steel castings, comprising a base plate, a U-shaped rod and a sliding plate that slides on the outer wall of the base plate are fixedly installed on the surface of the base plate, a storage box is fixedly installed on the side of the sliding plate, and an auxiliary device for driving the storage box to move back and forth horizontally is provided on the surface of the base plate.

[0006] Preferably, the auxiliary device includes a column fixedly installed on the surface of the base plate and a sliding ring that slides on the outer wall. The sliding ring and the storage box are hinged together by a hinge plate. A circular plate is fixedly installed on the surface of the column away from the base plate. A spring is fixedly installed between the circular plate and the sliding ring. An extension plate is fixedly installed on the side wall of the sliding ring. A positioning ring is fixedly installed on the end of the extension plate away from the sliding ring.

[0007] Preferably, the auxiliary device further includes a vertical plate fixedly installed on the surface of the base plate and a motor fitted on its surface. The output end of the motor is fixedly installed with a special-shaped gear through a coupling. Only one-third of the teeth on the surface of the special-shaped gear are visible.

[0008] Preferably, the auxiliary device further includes a sleeve fixedly installed on the surface of the base plate and a sliding top rod inside the sleeve, wherein a strip frame is fixedly installed on the surface of the top rod away from the sleeve.

[0009] Preferably, the inner walls on both sides of the strip frame are provided with tooth-like structures, the shaped gear meshes with the tooth-like structures on the inner walls on both sides of the strip frame, and an abutment rod is fixedly installed on the top surface of the strip frame, the port size of the abutment rod matching the inner diameter of the positioning ring.

[0010] The effect achieved by the above components is that the storage box can move back and forth horizontally, thereby moving the chemical reagents contained inside the storage box, which can flush the stainless steel castings placed in the support frame. Therefore, it can effectively clean the impurities attached to the surface of the stainless steel castings, thereby improving the polishing effect.

[0011] Preferably, the inner walls on both sides of the storage box are provided with vertical grooves and sliding displacement plates inside them. A support frame is fixedly installed between the two displacement plates, and multiple through holes are evenly provided on the bottom surface of the support frame.

[0012] The effect achieved by the above components is that the displacement plate and the vertical groove allow the support frame to move inside the storage box.

[0013] Preferably, one side surface of the storage box is provided with a lifting device for raising the position of the support frame. The lifting device includes a U-shaped bracket fixedly installed on one side surface of the storage box and a threaded rod rotatably connected between the inner walls of its two ends. A wheel is fixedly installed at one end of the threaded rod.

[0014] Preferably, the lifting device further includes a through groove formed on the inner wall of the vertical end of the U-shaped bracket and a round rod fitted between the inner walls of its two ends. The surface of the threaded rod is threadedly connected to a movable plate. The threaded rod drives the movable plate to move on the outer wall of the round rod. A connecting rod is fixedly installed between the movable plate and one of the displacement plates.

[0015] The effects achieved by the above components are as follows: the rotating wheel drives the threaded rod to rotate; the threaded rod drives the movable plate to move on the surface of the round rod; and the connecting rod drives the displacement plate to move inside the vertical groove.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] In this invention, by setting an auxiliary device, the storage box can be moved horizontally back and forth, thereby moving the chemical reagents contained inside the storage box, which can flush the stainless steel casting placed in the support frame. Therefore, it can effectively clean the impurities attached to the surface of the stainless steel casting, thereby improving the polishing effect. Attached Figure Description

[0018] Figure 1This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This utility model Figure 1 Another structural diagram from a different angle;

[0020] Figure 3 This utility model Figure 2 Another structural diagram from a different angle;

[0021] Figure 4 This utility model Figure 1 A schematic diagram of the three-dimensional structure at point A in the middle.

[0022] Legend: 1. Base plate; 2. Auxiliary device; 201. Column; 202. Slip ring; 203. Hinge plate; 204. Circular plate; 205. Spring; 206. Extension plate; 207. Positioning ring; 208. Vertical plate; 209. Motor; 210. Special gear; 211. Sleeve; 212. Top rod; 213. Strip frame; 214. Abutment rod; 3. Lifting device; 31. U-shaped bracket; 32. Threaded rod; 33. Rotary wheel; 34. Through groove; 35. Round rod; 36. Movable plate; 37. Connecting rod; 4. U-shaped rod; 5. Slide plate; 6. Storage box; 7. Vertical groove; 8. Displacement plate; 9. Bearing frame. Detailed Implementation

[0023] Example 1, as Figure 1-4 As shown, a chemical polishing device for preparing stainless steel castings includes a base plate 1, a U-shaped rod 4 and a sliding plate 5 that slides on the outer wall of the base plate 1 are fixedly installed on the surface of the base plate 1, a storage box 6 is fixedly installed on the side of the sliding plate 5, and an auxiliary device 2 for driving the storage box 6 to move back and forth horizontally is provided on the surface of the base plate 1.

[0024] Reference Figure 1-2As shown, in this embodiment: the auxiliary device 2 includes a column 201 fixedly installed on the surface of the base plate 1 and a sliding ring 202 that slides on the outer wall. The sliding ring 202 and the storage box 6 are hinged together by a hinge plate 203. A circular plate 204 is fixedly installed on the surface of the column 201 away from the base plate 1. A spring 205 is fixedly installed between the circular plate 204 and the sliding ring 202. An extension plate 206 is fixedly installed on the side wall of the sliding ring 202. A positioning ring 207 is fixedly installed on the end of the extension plate 206 away from the sliding ring 202. The auxiliary device 2 also includes a vertical plate 208 fixedly installed on the surface of the base plate 1 and a motor 209 fitted on its surface. A special-shaped gear 210 is fixedly installed on the output end of the motor 209 through a coupling. Only one-third of the teeth on the surface of the special-shaped gear 210 are visible. 2 also includes a sleeve 211 fixedly installed on the surface of the base plate 1 and a sliding top rod 212 inside it. A strip frame 213 is fixedly installed on the end surface of the top rod 212 away from the sleeve 211. The inner walls on both sides of the strip frame 213 are provided with tooth-like structures. The shaped gear 210 meshes with the tooth-like structures on the inner walls on both sides of the strip frame 213. An abutment rod 214 is fixedly installed on the top surface of the strip frame 213. The port size of the abutment rod 214 matches the inner diameter of the positioning ring 207, so that the storage box 6 can move back and forth horizontally, thereby moving the chemical reagents contained in the storage box 6, which can flush the stainless steel casting placed in the bearing frame 9. Therefore, it can effectively clean the impurities attached to the surface of the stainless steel casting, thereby improving the polishing effect.

[0025] Reference Figure 1-3 As shown in this embodiment: vertical grooves 7 and sliding displacement plates 8 are provided on both inner wall surfaces of the storage box 6. A bearing frame 9 is fixedly installed between the two displacement plates 8. Multiple through holes are evenly provided on the bottom surface of the bearing frame 9. The arrangement of the displacement plates 8 and vertical grooves 7 allows the bearing frame 9 to move inside the storage box 6.

[0026] Reference Figure 1-4 As shown in this embodiment: A lifting device 3 for raising the position of the support frame 9 is provided on one side surface of the storage box 6. The lifting device 3 includes a U-shaped bracket 31 fixedly installed on one side surface of the storage box 6 and a threaded rod 32 rotatably connected between the inner walls of its two ends. A wheel 33 is fixedly installed at one end of the threaded rod 32. The lifting device 3 also includes a through groove 34 opened in the inner wall of the vertical end of the U-shaped bracket 31 and a round rod 35 fitted between the inner walls of its two ends. A movable plate 36 is threadedly connected to the surface of the threaded rod 32. The threaded rod 32 drives the movable plate 36 to move on the outer wall of the round rod 35. A connecting rod 37 is fixedly installed between the movable plate 36 and one of the displacement plates 8.

[0027] Working principle: When the device is needed, first place the stainless steel casting inside the support frame 9. Then, add an appropriate amount of chemical reagent and water solution to the storage tank 6. After adding, start the motor 209. The motor 209 drives the shaped gear 210 to rotate. When the shaped gear 210 rotates and meshes with the tooth-like structure on the inner left side of the strip frame 213, the strip frame 213 will move upward. The upward movement of the strip frame 213 drives the push rod 212 to move upward inside the sleeve 211. At the same time, the upward movement of the strip frame 213 also drives the abutment rod 214 to move upward. The upward movement of the abutment rod 214 will insert into the positioning ring 207. The positioning ring 207 is squeezed and moved, causing the positioning ring 207 to move. The movement of the positioning ring 207 drives the extension plate 206 to move, which in turn drives the slip ring 202 to move upward on the surface of the column 201. The upward movement of the slip ring 202 on the surface of the column 201 compresses the spring 205, causing the spring 205 to be compressed. At the same time, the upward movement of the slip ring 202 also drives the hinge plate 203 to move. The movement of the hinge plate 203 pulls the storage box 6 to move to the left. The leftward movement of the storage box 6 drives the slide plate 5 to move to the left on the surface of the U-shaped rod 4. When the shaped gear 210 rotates and meshes with the tooth-like structure on the inner wall surface of the right side of the strip frame 213, it will cause the strip frame 213 to move to the left. As the strip frame 213 moves downward, the abutment rod 214 moves downward, separating itself from the positioning ring 207. The spring 205 then returns the slip ring 202 to its original position, causing the hinge plate 203 to move the storage tank 6 back to its original position. This causes the chemical reagent solution inside the storage tank 6 to agitate, thus flushing the stainless steel castings inside the support frame 9. This cleans away impurities adhering to the surface of the stainless steel castings, improving the polishing effect. When polishing is complete and the position of the support frame 9 inside the storage tank 6 needs to be raised, first rotate the wheel 33. The rotation of the wheel 33 drives the threaded rod 32 to rotate. The rotation of the threaded rod 32 drives the movable plate 36 to move upward on the surface of the round rod 35. The upward movement of the movable plate 36 drives the connecting rod 37 to move upward. The upward movement of the connecting rod 37 drives the displacement plate 8 to move upward inside the vertical groove 7. The upward movement of the displacement plate 8 drives the bearing frame 9 to move upward. When the bearing frame 9 moves upward to the appropriate position, the rotation of the wheel 33 stops. This achieves the lifting of the bearing frame 9 inside the storage box 6, avoiding direct contact between the workers' hands and the chemical reagent solution inside the storage box 6 when taking out the polished stainless steel casting, thus preventing contamination.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A chemical polishing device for preparing stainless steel castings, comprising a base plate (1), wherein a U-shaped rod (4) and a sliding plate (5) for sliding on the outer wall of the base plate (1) are fixedly installed on the surface of the base plate (1), and a storage box (6) is fixedly installed on the side of the sliding plate (5), characterized in that: The surface of the base plate (1) is provided with an auxiliary device (2) for driving the storage box (6) to move horizontally back and forth.

2. The chemical polishing equipment for preparing stainless steel castings according to claim 1, characterized in that: The auxiliary device (2) includes a column (201) fixedly installed on the surface of the base plate (1) and a sliding ring (202) that slides on the outer wall. The sliding ring (202) and the storage box (6) are hinged together by a hinge plate (203). A circular plate (204) is fixedly installed on the surface of the column (201) away from the base plate (1). A spring (205) is fixedly installed between the circular plate (204) and the sliding ring (202). An extension plate (206) is fixedly installed on the side wall of the sliding ring (202). A positioning ring (207) is fixedly installed on the end of the extension plate (206) away from the sliding ring (202).

3. The chemical polishing equipment for preparing stainless steel castings according to claim 2, characterized in that: The auxiliary device (2) also includes a vertical plate (208) fixedly installed on the surface of the base plate (1) and a motor (209) fitted on its surface. The output end of the motor (209) is fixedly installed with a special gear (210) through a coupling. Only one-third of the teeth are on the surface of the special gear (210).

4. The chemical polishing equipment for preparing stainless steel castings according to claim 3, characterized in that: The auxiliary device (2) also includes a sleeve (211) fixedly installed on the surface of the base plate (1) and a sliding top rod (212) inside it. A strip frame (213) is fixedly installed on the surface of the top rod (212) away from the sleeve (211).

5. The chemical polishing equipment for preparing stainless steel castings according to claim 4, characterized in that: The inner walls on both sides of the strip frame (213) are provided with tooth-like structures. The tooth-like structures on the inner walls on both sides of the strip frame (213) mesh with the gear (210). The top surface of the strip frame (213) is fixedly installed with an abutment rod (214). The port size of the abutment rod (214) matches the inner diameter of the positioning ring (207).

6. The chemical polishing equipment for preparing stainless steel castings according to claim 5, characterized in that: The storage box (6) has vertical grooves (7) on both sides of its inner wall surface and sliding displacement plates (8) inside. A bearing frame (9) is fixedly installed between the two displacement plates (8). Multiple through holes are evenly opened on the bottom surface of the bearing frame (9).

7. The chemical polishing equipment for preparing stainless steel castings according to claim 6, characterized in that: The storage box (6) has a lifting device (3) on one side surface for lifting the position of the support frame (9). The lifting device (3) includes a U-shaped bracket (31) fixedly installed on one side surface of the storage box (6) and a threaded rod (32) rotatably connected between the inner walls of its two ends. A wheel (33) is fixedly installed at one end of the threaded rod (32).

8. The chemical polishing equipment for preparing stainless steel castings according to claim 7, characterized in that: The lifting device (3) further includes a through groove (34) opened on the inner wall of the vertical end of the U-shaped bracket (31) and a round rod (35) fitted between the inner walls of its two ends. The surface of the threaded rod (32) is threadedly connected to a movable plate (36). The threaded rod (32) drives the movable plate (36) to move on the outer wall of the round rod (35). A connecting rod (37) is fixedly installed between the movable plate (36) and one of the displacement plates (8).