An automatic overturning metal casting polishing machine

The automatic rotating metal casting grinding and polishing machine, which uses a dual-cylinder linkage clamping and multi-axis rotating mechanism, solves the problems of long grinding time and difficulty in ensuring positioning accuracy in the existing technology for double-sided grinding of castings, and realizes efficient, safe and accurate automatic rotating and grinding of castings.

CN224526747UActive Publication Date: 2026-07-21WUXI HUIHUA MACHINERY TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI HUIHUA MACHINERY TECHNOLOGY CO LTD
Filing Date
2025-06-26
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing metal castings require workers to disassemble, flip, and reclamp the workpiece during double-sided grinding, resulting in a significant time consumption and difficulty in guaranteeing positioning accuracy.

Method used

An automatic rotating metal casting grinding and polishing machine was designed. It adopts a dual-cylinder linkage clamping and multi-axis rotating mechanism, combined with a three-dimensional adjustable grinding component, to realize the automatic rotation and precise positioning of castings. The automatic rotation and grinding of castings are achieved through the linkage control of cylinders and motors.

Benefits of technology

It enables automatic flipping and precise positioning of castings, significantly improving processing efficiency, reducing the need for manual intervention, and enhancing positioning accuracy and processing efficiency, especially for the operational safety and equipment lifespan of heavy castings.

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Abstract

The utility model discloses an automatic overturning metal casting polishing machine belongs to metal casting processing technical field, including polishing table, its top surface both ends are all fixed with side plate, and two side plates side all have opened first straight slot, and the inside top surface of first straight slot is connected with moving seat through first air cylinder, and the outside of two moving seats is all equipped with first gear, and its bottom is all fixed with first motor through connecting block, and the inside of two first gears is all fixed with the pivot, and the other end of two pivots respectively passes two moving seats and is all fixed with first turntable, and the inside of two first turntables is all fixed with second turntable through a plurality of support columns, and the outside of two second turntables is all installed with second air cylinder, and its piston rod all passes second turntable center and is connected with the clamping cover, and the top surface of polishing table is equipped with polishing subassembly, using automatic overturning metal casting polishing machine, can not disassemble and can automatically overturn to metal casting, and the time is shorter and the positioning is accurate, satisfies the enterprise high -efficient processing requirement.
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Description

Technical Field

[0001] This utility model relates to the field of metal casting processing technology, and in particular to an automatic rotating metal casting grinding and polishing machine. Background Technology

[0002] Metal castings are solid metal products formed by pouring molten metal (such as alloys of iron, aluminum, copper, zinc, etc.) into a pre-prepared mold cavity, cooling and solidifying, demolding and cleaning. After casting, metal castings often have defects such as burrs, flash and unevenness on their surface, which need to be improved by grinding and polishing to improve precision and smoothness.

[0003] Currently, when grinding metal castings on both sides, workers need to disassemble, flip, and re-clamp the workpiece, which consumes a lot of time and makes it difficult to guarantee positioning accuracy. This is especially true for large castings, where the operation is extremely strenuous. Therefore, there is an urgent need to design an automatic flipping metal casting grinding and polishing machine to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an automatic flipping metal casting grinding and polishing machine to solve the problem that existing metal castings require workers to disassemble, flip, and re-clamp the workpieces when performing double-sided grinding, which consumes a lot of time and makes it difficult to guarantee positioning accuracy.

[0005] To solve the above-mentioned technical problems, this utility model provides an automatic rotating metal casting grinding and polishing machine, including a grinding table. Side plates are fixed to both ends of the top surface of the grinding table. A first straight groove is opened on the side of each of the two side plates. A first cylinder is installed inside the top surface of each of the two first straight grooves, and its piston rod is connected to a movable seat. A first gear is provided on the outer side of each of the two movable seats, and a first motor is fixed to the bottom surface of each of the two movable seats via a connecting block. A rotating shaft is fixed inside the two first gears. The other ends of the two rotating shafts pass through the two movable seats and are fixed to a first turntable. A second turntable is fixed inside the two first turntables via several support columns. A second cylinder is installed on the outer side of each of the two second turntables, and its piston rod passes through the center of the second turntable and is connected to a clamping cover.

[0006] The top surface of the grinding table is also equipped with grinding components.

[0007] As a further improvement to the above technical solution:

[0008] Optionally, the grinding assembly includes a horizontal plate and a vertical plate. The horizontal plate is fixed to the top of the grinding table and has a first groove on its top surface. A second motor is installed at one end of the horizontal plate. The output end of the second motor extends into the first groove and is connected to a screw. A moving block is threadedly connected to the side of the screw. A bearing block is fixed to the top of the moving block.

[0009] The vertical plate is fixed to the top surface of the bearing block, and a second groove is opened on its side. A third cylinder is installed on the side wall of the second groove, and its piston rod is connected to a movable block. A moving plate is fixed on the side of the movable block, and a second straight slot is opened on the top surface of the moving plate. A fourth cylinder is installed on the side wall of the second straight slot, and its piston rod is connected to a connecting seat. A support block is fixed at the bottom end of the connecting seat, and a third motor is installed on the bottom surface of the support block. Its output end is connected to a grinding disc.

[0010] Optionally, the movable block is adapted to the first groove.

[0011] Optionally, a bearing is fixed to the sidewall of the first groove, and the bearing is connected to the other end of the screw.

[0012] Optionally, the grinding disc is located above the two clamps.

[0013] Optionally, each of the four corners of the bottom surface of the grinding table is fixed with a column.

[0014] In the automatic rotating metal casting grinding and polishing machine provided by this utility model, side plates are fixed at both ends of the top surface of the grinding table. A first straight groove is opened on the side of each of the two side plates. A first cylinder is installed inside the top surface of each of the two first straight grooves, and its piston rod is connected to a movable seat. A first gear is provided on the outer side of each of the two movable seats, and a first motor is fixed to the bottom surface of each of the two movable seats via a connecting block. A rotating shaft is fixed inside the two first gears. The other ends of the two rotating shafts pass through the two movable seats and are fixed to a first turntable. A second turntable is fixed inside the two first turntables via several support columns. A second cylinder is installed on the outer side of each of the two second turntables, and its piston rod passes through the center of the second turntable and is connected to a clamping cover. A grinding assembly is also provided on the top surface of the grinding table. Using the automatic rotating metal casting grinding and polishing machine, metal castings can be automatically rotated without disassembly, with a short processing time and precise positioning, meeting the high-efficiency processing requirements of enterprises. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the automatic flipping metal casting grinding and polishing machine provided by this utility model;

[0016] Figure 2 This is a top view of the automatic rotating metal casting grinding and polishing machine provided by this utility model;

[0017] Figure 3 yes Figure 2 Sectional view of AA. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0019] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] This utility model provides an automatic rotating metal casting grinding and polishing machine, the structure of which is as follows: Figures 1-3 As shown, the machine includes a grinding table 1, with side plates 2 fixed at both ends of the top surface of the grinding table 1. Each side plate 2 has a first straight groove 3 on its side. A first cylinder 4 is installed inside the bottom surface of each of the two first straight grooves 3, with its piston rod connected to a movable seat 5. Each of the two movable seats 5 has a first gear 7 on its outer side, and a first motor 10 is fixed to its bottom surface via a connecting block 9. A rotating shaft 6 is fixed inside each of the two first gears 7. The other ends of the two rotating shafts 6 pass through the two movable seats 5 and are fixed to first turntables 12. Each of the two first turntables 12 has a second turntable 14 fixed inside its inner side via several support columns 13. A second cylinder 15 is installed on the outer side of each of the two second turntables 14, with its piston rod passing through the center of the second turntable 14 and connected to a clamping cover 16. A grinding assembly 8 is also provided on the top surface of the grinding table 1. Using an automatic rotating metal casting grinding and polishing machine, metal castings can be automatically rotated without disassembly, resulting in shorter processing time and more precise positioning, meeting the high-efficiency processing requirements of enterprises.

[0022] Specifically, the grinding assembly 8 includes a horizontal plate 801 and a vertical plate 806. The horizontal plate 801 is fixed to the top of the grinding table 1 and has a first groove 802 on its top surface. A second motor 803 is installed at one end of the horizontal plate 801. The output end of the second motor 803 extends into the first groove 802 and is connected to a screw 804. A moving block 805 is threadedly connected to the side of the screw 804. A bearing block 818 is fixed to the top of the moving block 805. The vertical plate 806 is fixed to the top surface of the bearing block 818 and has a second groove 806 on its side. 07. A third cylinder 808 is installed on the side wall of the second groove 807. Its piston rod is connected to a movable block 809. A movable plate 810 is fixed on the side of the movable block 809. A second straight groove 811 is opened on the top surface of the movable plate 810. A fourth cylinder 812 is installed on the side wall of the second straight groove 811. Its piston rod is connected to a connecting seat 813. A support block 814 is fixed at the bottom of the connecting seat 813. A third motor 815 is installed on the bottom surface of the support block 814. Its output end is connected to a grinding disc 816.

[0023] Furthermore, the movable block 805 is adapted to the first groove 802.

[0024] Furthermore, a bearing 817 is fixed to the side wall of the first groove 802, and the bearing 817 is connected to the other end of the screw 804.

[0025] Furthermore, the grinding disc 816 is located above the two clamps 16.

[0026] Furthermore, each of the four corners of the bottom surface of the polishing table 1 is fixed with a column 17.

[0027] Operating procedures

[0028] 1. Loading and clamping: Place the casting between the two clamping covers 16, and start the second cylinder 15 to push the clamping covers 16 to clamp the two ends of the casting;

[0029] 2. Horizontal adjustment: The first cylinder 4 pushes the moving seat 5 to slide along the first straight groove 3, and adjusts the spacing of the clamping cover 16 to match the length of the casting;

[0030] 3. Height positioning: The third cylinder 808 pushes the movable block 809 to rise and fall, driving the grinding disc 816 to the preset height of the casting surface;

[0031] 4. Grinding start: The third motor 815 drives the grinding disc 816 to rotate, and the fourth cylinder 812 pushes the connecting seat 813 to feed laterally, so that the grinding disc 816 contacts the surface of the casting.

[0032] 5. Turning the casting over: The first motor 10 drives the first gear 7 to rotate, which in turn drives the rotating shaft 6, the first turntable 12, and the second turntable 14 to rotate 180° synchronously, so as to realize the automatic turning of the casting.

[0033] 6. Secondary polishing: Repeat steps 3-4 to polish the other side of the flipped casting;

[0034] 7. Repositioning process: The second motor 803 drives the screw 804 to rotate, which in turn drives the moving block 805 and the grinding disc 816 to move longitudinally along the first groove 802, covering different areas of the casting.

[0035] Beneficial effects

[0036] This invention systematically solves the technical defects of traditional processes by combining a dual-cylinder linkage clamping and a multi-axis flipping mechanism with a three-dimensional adjustable grinding component: First, the first cylinder 4 drives the moving seat 5 to move along the first straight groove 3, realizing adaptive adjustment of the spacing of the clamping cover 16, compatible with castings of different sizes; the second cylinder 15 directly presses against the end face of the workpiece, avoiding loosening of the clamping and significantly improving the versatility and stability of the clamping; Second, the first motor 10 drives the rotating shaft 6 to rotate synchronously via the first gear 7, enabling the first turntable 12 and the second turntable 14 to achieve a precise 180° flip of the workpiece, completely eliminating... Besides meeting the need for manual intervention, especially ensuring the safety of heavy casting operations, this solution also improves processing efficiency by over 40%. Thirdly, the grinding assembly 8 uses a screw 804 to horizontally drive the moving block 805, a third cylinder 808 to control the lifting and lowering of the vertical plate 806, and a fourth cylinder 812 to adjust the longitudinal feed of the grinding disc 816, forming a three-axis linkage spatial trajectory control. This allows the grinding disc 816 to fully cover complex curved surfaces, avoiding missed areas and repeated grinding. Finally, the entire equipment is stably supported by the column 17, and the closed-loop control of each cylinder and motor ensures operational accuracy and equipment lifespan under high load conditions. In summary, this solution, with fully automatic flipping and intelligent trajectory control as its core, achieves efficient, high-quality, and safe integrated processing of metal castings, encompassing clamping, grinding, flipping, and re-grinding.

[0037] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. An automatic rotating metal casting grinding and polishing machine, comprising a grinding table (1), characterized in that, The grinding table (1) has side plates (2) fixed at both ends of its top surface. The two side plates (2) have a first straight groove (3) on their sides. The top surface of the two first straight grooves (3) is equipped with a first cylinder (4), whose piston rod is connected to a moving seat (5). The two moving seats (5) are equipped with a first gear (7) on their outer side. The bottom surface of the two moving seats (5) is fixed with a first motor (10) through a connecting block (9). The inner side of the two first gears (7) is fixed with a rotating shaft (6). The other end of the two rotating shafts (6) passes through the two moving seats (5) respectively and is fixed with a first turntable (12). The inner side of the two first turntables (12) is fixed with a second turntable (14) through several support columns (13). The outer side of the two second turntables (14) is equipped with a second cylinder (15), whose piston rod passes through the center of the second turntable (14) and is connected with a clamp (16). The top surface of the grinding table (1) is also provided with a grinding component (8).

2. The automatic rotating metal casting grinding and polishing machine as described in claim 1, characterized in that, The grinding assembly (8) includes a horizontal plate (801) and a vertical plate (806). The horizontal plate (801) is fixed to the top of the grinding table (1) and has a first groove (802) on its top surface. A second motor (803) is installed at one end of the horizontal plate (801). The output end of the second motor (803) extends into the first groove (802) and is connected to a screw (804). A moving block (805) is threaded to the side of the screw (804). A bearing block (818) is fixed to the top of the moving block (805). The vertical plate (806) is fixed to the top surface of the bearing block (818), and a second groove (807) is opened on its side. A third cylinder (808) is installed on the side wall of the second groove (807), and its piston rod is connected to a movable block (809). A movable plate (810) is fixed on the side of the movable block (809). A second straight slot (811) is opened on the top surface of the movable plate (810). A fourth cylinder (812) is installed on the side wall of the second straight slot (811), and its piston rod is connected to a connecting seat (813). A support block (814) is fixed at the bottom end of the connecting seat (813). A third motor (815) is installed on the bottom surface of the support block (814), and its output end is connected to a grinding disc (816).

3. The automatic rotating metal casting grinding and polishing machine as described in claim 2, characterized in that, The movable block (805) is adapted to the first groove (802).

4. The automatic rotating metal casting grinding and polishing machine as described in claim 2, characterized in that, A bearing (817) is fixed to the side wall of the first groove (802), and the bearing (817) is connected to the other end of the screw (804).

5. The automatic rotating metal casting grinding and polishing machine as described in claim 2, characterized in that, The grinding disc (816) is located above the two clamps (16).

6. The automatic rotating metal casting grinding and polishing machine as described in claim 1, characterized in that, The grinding table (1) has four corners on its bottom surface fixed with columns (17).