A mold inner hole polishing device

Abstract

The utility model provides a mould inner hole polishing device, including fixed base, the top welding of fixed base has the fixed plate, has the slot on the fixed plate, the inside installation of slot has the lug, the one end fixed support plate of lug, the one end fixed mounting seat of support plate, the bottom fixed location column of mounting seat, the inside fixed mounting of fixed base has the lifting mechanism, the one end fixed in mounting seat of lifting mechanism, open fixed groove on mounting seat, the inside movable mounting of fixed groove has the thread seat, the thread seat is rotatory mounting and has the thread post, the thread post rotatory mounting is in mounting seat. The utility model discloses, when using, according to the mould inner hole diameter rotation suitable diameter's support seat, and support seat provides support from the inner wall of inner hole, and support seat and fixed frame cooperate and realize the inside and outside clamping fixed of mould, and the later support seat moves upward, can scrape off the impurity that sticks on the inner wall in inner hole.

Description

Technical Field

[0001] This utility model relates to the field of internal hole polishing equipment, specifically a mold internal hole polishing device. Background Technology

[0002] After machining the inner hole of a cylindrical mold, obvious wire cutting marks often remain on the inner wall surface, which need to be removed through polishing. Currently, manual polishing is commonly used, which is inefficient and labor-intensive. Because it is difficult to maintain a stable polishing force during manual polishing, it can easily lead to inconsistent inner hole diameters, thus affecting the overall quality of the mold.

[0003] In the prior art, patent document CN203156539U discloses a device for polishing the inner hole of a straight cylindrical mold. This device includes a frame, a geared motor, pulleys, a belt drive structure, a chuck, a servo motor, and a screw assembly. The geared motor drives the chuck to rotate via a belt, and the servo motor drives the screw to move the polishing rod up and down along the axial direction of the inner hole, thus achieving the polishing operation on the rotating inner hole of the mold. This device has the advantages of fast polishing speed and uniform polishing force.

[0004] However, this technical solution still has certain limitations: on the one hand, it is difficult to meet the polishing requirements of large-diameter mold inner holes; on the other hand, after polishing, it is not easy to remove the residual impurities attached to the inner wall, which is still inconvenient in actual use.

[0005] Therefore, there is an urgent need for a polishing device that can adapt to different hole sizes, especially suitable for polishing the inner hole of large-diameter molds, and can efficiently remove residual impurities from the inner wall after polishing, so as to improve polishing efficiency and quality and meet actual production needs. Utility Model Content

[0006] To address the shortcomings of existing technologies, the purpose of this invention is to provide a mold inner hole polishing device, solving the problems of poor adaptability and inconvenient impurity removal mentioned in the background section. This invention features a novel structural design. In practical applications, a support base of appropriate size can be selected according to the diameter of the mold inner hole. This support base provides internal support from the inner hole wall and works in conjunction with the external fixing frame to achieve synchronous clamping and fixing of the mold from both inside and outside. After polishing, the support base moves upward to scrape away any remaining impurities adhering to the inner hole wall.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a mold inner hole polishing device, comprising a fixed base, a fixed plate welded to the top of the fixed base, a slot formed on the fixed plate, a protrusion installed inside the slot, a support plate fixed to one end of the protrusion, a mounting base fixed to one end of the support plate, a positioning column fixed to the bottom of the mounting base, a lifting mechanism fixedly installed inside the fixed base, one end of the lifting mechanism fixed to the mounting base, a fixed groove formed on the mounting base, a threaded seat movably installed inside the fixed groove, a threaded column rotatably installed on the threaded seat, and the threaded column rotatably installed on the mounting base.

[0008] Furthermore, a fixed cylinder is fixed on the threaded seat, a grinding column is movably installed inside the fixed cylinder, a limit frame is fixed on the top of the grinding column, and a strong magnet is fixed on the limit frame.

[0009] Furthermore, a rotating seat is rotatably mounted inside the fixed seat, a fixed frame is movably mounted on the side of the rotating seat, a bracket is welded to the bottom of the fixed seat, and an opening is opened inside the rotating seat.

[0010] Furthermore, a support base is movably installed inside the opening, the support base has a slot, and a locking block is movably installed inside the slot, the locking block being fixed to the bottom of the grinding column.

[0011] Furthermore, a limiting block is welded to the side of the fixed frame, and an installation cavity is opened inside the rotating seat. A limiting groove is opened on the inner wall of the installation cavity. The fixed frame is movably installed inside the limiting groove through the limiting block. A threaded rod is rotatably installed on the fixed frame. One end of the threaded rod is installed inside the installation cavity through a bearing seat, and a handle is fixed to the other end of the threaded rod.

[0012] Furthermore, a ring seat is fixed inside the fixed seat, and an annular groove is opened on the rotating seat. The ring seat is movably installed inside the annular groove. A driven gear is fixed at the bottom of the rotating seat, and a driving gear is rotatably installed on the side of the driven gear.

[0013] Furthermore, both the fixed base and the rotating base have cavities inside, and a displacement mechanism is installed inside the cavity. The displacement mechanism is fixed inside the cavity by a connecting block, and a connecting column is movably installed at one end of the displacement mechanism. One end of the connecting column is fixed inside the support base.

[0014] Furthermore, a protective cover is fixed to the side of the drive gear, and a motor base is fixed to the bottom of the protective cover. One side of the protective cover and the motor base are welded to a fixed base, and a drive motor is fixed on the motor base.

[0015] The beneficial effects of this utility model are: In practical applications, this invention allows for the selection of a support base of appropriate specifications based on the diameter of the mold's inner hole. This support base provides internal support from the inner hole wall and works in conjunction with the external fixing frame to achieve bidirectional clamping and fixation of the mold from both inside and outside. After polishing is completed, the support base can be moved upwards to simultaneously scrape away residual impurities on the inner hole wall, effectively combining polishing positioning with subsequent cleaning functions.

[0016] In this invention, the support base is provided with a slot, which cooperates with the locking block at the bottom of the grinding column to form a reliable limiting structure. When the grinding column moves downward, its two ends are pressed and fixed, ensuring the stability of the polishing process. After polishing is completed, the grinding column can be quickly disassembled and replaced by lifting the threaded seat, making operation simple and maintenance efficient.

[0017] In this invention, when the support base provides support to the inner wall of the inner hole, the displacement mechanism drives the support base to rise, allowing for precise control of the downward movement distance of the grinding column. By adjusting the vertical position of the support base, effective limiting and control of the grinding depth of the inner wall of the inner hole can be achieved. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a mold inner hole polishing device according to the present invention; Figure 2 This is a schematic diagram of the structure of the protrusion in a mold inner hole polishing device according to the present invention; Figure 3 This is a schematic diagram of the structure of the fixing frame of the mold inner hole polishing device of this utility model; Figure 4 This is a schematic diagram of the grinding column of a mold inner hole polishing device according to the present invention; Figure 5 This is a partial cross-sectional view of the fixing seat of a mold inner hole polishing device according to the present invention; Figure 6 This is a three-dimensional structural diagram of a support base for a mold inner hole polishing device according to the present invention; In the diagram: 1. Fixed seat; 2. Bracket; 3. Fixed plate; 4. Slot; 5. Positioning post; 6. Support plate; 7. Mounting seat; 8. Fixed slot; 9. Threaded seat; 10. Fixed cylinder; 11. Threaded post; 12. Grinding post; 13. Rotating seat; 14. Fixed frame; 15. Motor seat; 16. Drive motor; 17. Protective cover; 18. Protrusion; 19. Lifting mechanism; 20. Handle; 21. Threaded rod; 22. Limiting block; 23. Bearing seat; 24. Locking block; 25. Limiting frame; 26. Strong magnet; 27. Opening; 28. Support seat; 29. ​​Connecting post; 30. Displacement mechanism; 31. Cavity; 32. Connecting block; 33. Ring seat; 34. Driven gear; 35. Driving gear; 36. Slot. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Please see Figures 1 to 6 This utility model provides a technical solution: a mold inner hole polishing device, including a fixed base 1, a fixed plate 3 welded to the top of the fixed base 1, a slot 4 on the fixed plate 3, a protrusion 18 installed inside the slot 4, a support plate 6 fixed to one end of the protrusion 18, a mounting base 7 fixed to one end of the support plate 6, a positioning column 5 fixed to the bottom of the mounting base 7, and a lifting mechanism 19 fixedly installed inside the fixed base 1. The lifting mechanism 19 is a linear reciprocating electric push rod. The lifting mechanism 19 pushes the support plate 6 to move up and down, and the up and down movement of the support plate 6 controls the height of the mounting base 7. After the height of the mounting base 7 is adjusted, the polishing column 1... 2. The downward movement completes the grinding. One end of the lifting mechanism 19 is fixed on the mounting base 7. The mounting base 7 has a fixing groove 8. A threaded seat 9 is movably installed inside the fixing groove 8. A threaded column 11 is rotatably installed on the threaded seat 9. The threaded column 11 is rotatably installed on the mounting base 7. A fixing cylinder 10 is fixed on the threaded seat 9. A grinding column 12 is movably installed inside the fixing cylinder 10. A limit frame 25 is fixed on the top of the grinding column 12. A strong magnet 26 is fixed on the limit frame 25. Later, the grinding column 12 moves horizontally through the threaded seat 9. The grinding column 12 moves inside the large diameter hole of the mold. After contacting the inner wall of the inner hole, grinding is performed.

[0021] In this embodiment, a rotating seat 13 is rotatably mounted inside the fixed seat 1, and a fixed frame 14 is movably mounted on the side of the rotating seat 13. A bracket 2 is welded to the bottom of the fixed seat 1. An opening 27 is opened inside the rotating seat 13, and a support seat 28 is movably mounted inside the opening 27. A slot 36 is opened on the support seat 28, and a locking block 24 is movably mounted inside the slot 36. The locking block 24 is fixed to the bottom of the grinding column 12. A limiting block 22 is welded to the side of the fixed frame 14. An installation cavity is opened inside the rotating seat 13, and a limiting groove is opened on the inner wall of the installation cavity. The fixed frame 14 is movably mounted inside the limiting groove through the limiting block 22. A threaded rod 21 is rotatably mounted on the fixed frame 14. One end of the threaded rod 21 is mounted inside the installation cavity through a bearing seat 23, and the other end of the threaded rod 21 is fixed with a handle 20. The rotation of the threaded rod 21 drives the fixed frame 14 to move inward, and the inward movement of the fixed frame 14 completes the clamping and fixing of the outer wall of the mold.

[0022] In this embodiment, a ring seat 33 is fixed inside the fixed base 1, and an annular groove is formed on the rotating base 13. The ring seat 33 is movably installed inside the annular groove. A driven gear 34 is fixed to the bottom of the rotating base 13, and a driving gear 35 is rotatably installed on the side of the driven gear 34. Both the fixed base 1 and the rotating base 13 have cavities 31 inside. A displacement mechanism 30 is installed inside the cavity 31. The displacement mechanism 30 is fixed inside the cavity 31 by a connecting block 32. A connecting rod is movably installed at one end of the displacement mechanism 30. The connecting column 29 is fixed at one end inside the support base 28. A protective cover 17 is fixed to the side of the drive gear 35. A motor base 15 is fixed to the bottom of the protective cover 17. The protective cover 17 and the motor base 15 are welded to the fixed base 1 on one side. A drive motor 16 is fixed on the motor base 15. The displacement mechanism 30 is a linear reciprocating electric push rod. The displacement mechanism 30 pushes the support base 28 to move up and down. The up and down movement of the support base 28 supports the grinding column 12 and controls the grinding depth at the same time.

[0023] Working principle: During use, a support base 28 with a matching diameter is selected according to the inner diameter of the cylindrical mold. A sponge layer is fixed to the side of the support base 28, facilitating the scraping of impurities from the inner wall of the inner hole. The support base 28 is installed on top of the displacement mechanism 30 via the connecting column 29. After the support base 28 is installed, the inner hole of the cylindrical mold is placed on the support base 28, providing support for the inside of the mold. The screw rod 21 is rotated by the handle 20 in conjunction with a tool. The rotation of the screw rod 21 presses against the outer wall of the cylindrical mold. After the cylindrical mold is fixed, the height of the support base 28 is adjusted according to the polishing height of the inner hole. The displacement mechanism 30 is activated to move the support base 28 upwards, providing a support point for the grinding column 12. The lifting mechanism 19 is activated to move the mounting base 7 downwards. After the mounting base 7 moves downwards, the screw rod 9 pushes the grinding column 12 down. The locking block 24 at one end of the grinding column 12 enters the groove 36. 36 cooperates with the locking block 24 to prevent the grinding column 12 from rotating with the mold. After the grinding column 12 is pressed and fixed, the position of the grinding column 12 in the inner hole is adjusted. When the inner hole diameter is small, a grinding column 12 of the corresponding diameter can be used. When encountering a large diameter inner hole, the threaded column 11 is rotated to push the threaded seat 9 to move. The movement of the threaded seat 9 changes the position of the grinding column 12, so that the grinding column 12 fits against the inner wall of the inner hole. After the position of the grinding column 12 is adjusted, the drive motor 16 is started to drive the drive gear 35 to rotate. The drive gear 35 and the driven gear 34 drive the rotating seat 13 to rotate. The rotating seat 13 rotates down to make the mold rotate on the grinding column 12 for grinding. After the grinding is finished, the displacement mechanism 30 is started to push the support seat 28 to move upward. After the support seat 28 moves upward, the inner wall of the inner hole is scraped and cleaned by the sponge on its side. In addition, after the mounting seat 7 is raised later, the grinding column 12 moves downward, and the strong magnet 26 loses its attraction force, making it easy to replace the grinding column 12.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mold inner hole polishing device, comprising a fixed base (1), characterized in that: A fixing plate (3) is welded to the top of the fixing base (1). A slot (4) is opened on the fixing plate (3). A protrusion (18) is installed inside the slot (4). A support plate (6) is fixed to one end of the protrusion (18). A mounting base (7) is fixed to one end of the support plate (6). A positioning column (5) is fixed to the bottom of the mounting base (7). A lifting mechanism (19) is fixedly installed inside the fixing base (1). One end of the lifting mechanism (19) is fixed to the mounting base (7). A fixing groove (8) is opened on the mounting base (7). A threaded seat (9) is movably installed inside the fixing groove (8). A threaded column (11) is rotatably installed on the threaded seat (9). The threaded column (11) is rotatably installed on the mounting base (7).

2. The mold inner hole polishing device according to claim 1, characterized in that: A fixed cylinder (10) is fixed on the threaded seat (9). A grinding column (12) is movably installed inside the fixed cylinder (10). A limit frame (25) is fixed on the top of the grinding column (12). A strong magnet (26) is fixed on the limit frame (25).

3. The mold inner hole polishing device according to claim 1, characterized in that: The fixed seat (1) is rotatably mounted inside the fixed seat (1), and a fixed frame (14) is movably mounted on the side of the rotating seat (13). A bracket (2) is welded to the bottom of the fixed seat (1), and an opening (27) is opened inside the rotating seat (13).

4. The mold inner hole polishing device according to claim 3, characterized in that: A support base (28) is movably installed inside the opening (27). A slot (36) is opened on the support base (28). A locking block (24) is movably installed inside the slot (36). The locking block (24) is fixed to the bottom of the grinding column (12).

5. A mold inner hole polishing device according to claim 3, characterized in that: The fixed frame (14) has a limiting block (22) welded to its side. The rotating seat (13) has an installation cavity inside. The inner wall of the installation cavity has a limiting groove. The fixed frame (14) is movably installed inside the limiting groove through the limiting block (22). A threaded rod (21) is rotatably installed on the fixed frame (14). One end of the threaded rod (21) is installed inside the installation cavity through a bearing seat (23). The other end of the threaded rod (21) is fixed with a handle (20).

6. The mold inner hole polishing device according to claim 3, characterized in that: The fixed seat (1) has a ring seat (33) fixed inside. The rotating seat (13) has an annular groove. The ring seat (33) is movably installed inside the annular groove. The rotating seat (13) has a driven gear (34) fixed at the bottom. The driven gear (34) has a driving gear (35) rotatably installed on its side.

7. A mold inner hole polishing device according to claim 6, characterized in that: Both the fixed seat (1) and the rotating seat (13) have cavities (31) inside. A displacement mechanism (30) is installed inside the cavity (31). The displacement mechanism (30) is fixed inside the cavity (31) by a connecting block (32). A connecting column (29) is movably installed at one end of the displacement mechanism (30). One end of the connecting column (29) is fixed inside the support seat (28).

8. A mold inner hole polishing device according to claim 6, characterized in that: A protective cover (17) is fixed to the side of the drive gear (35), and a motor base (15) is fixed to the bottom of the protective cover (17). One side of the protective cover (17) and the motor base (15) are welded to the fixed base (1), and a drive motor (16) is fixed on the motor base (15).

Images