Forming die for CBN grinding wheel production

Abstract

The utility model discloses a forming mold for CBN grinding wheel production, which relates to the technical field of grinding wheel production and comprises a mounting base and a grinding wheel forming automatic demolding device. The top of the mounting base is fixedly connected with a supporting shaft, the upper end of the supporting shaft is rotationally connected with a turntable, four clamping grooves are circularly formed in the surface of the turntable at equal intervals, and the top of the turntable is fixedly connected with a disc; the grinding wheel forming automatic demolding device comprises a hydraulic elevator, an upper mold block and an arc-shaped pressing plate, the hydraulic elevator is fixedly installed at the top of the disc, the upper mold block is fixedly installed at the output end of the hydraulic elevator, and a rotating shaft moves upwards to drive a sliding ring to move upwards. The sliding ring moves upwards to drive the formed grinding wheel to move upwards out of the interior of the cavity to complete automatic demolding, finally, a worker can carry the formed grinding wheel and add materials on one side of the upper die block, the safety of the worker is guaranteed, and the upper die block cannot block the worker.

Description

Technical Field

[0001] This utility model relates to the field of grinding wheel production technology, and in particular to a forming mold for CBN grinding wheel production. Background Technology

[0002] A forming mold is a forming mechanism used in the production of CBN grinding wheels. CBN grinding wheels are made of cubic boron nitride abrasive as raw material, and are made into various shapes using metal powder, resin powder, ceramic and electroplated metal as binders. Tools used for grinding, polishing and lapping are called CBN grinding wheels. CBN has more advantages than diamond grinding wheels in processing ferrous metals. CBN grinding wheels need to be formed using a forming mold during production.

[0003] The currently published patent, CN220719024U, discloses a flexible forming mold for ceramic CBN grinding wheels. By setting flexible polyurethane pads on opposite sides of the upper and lower pressure heads, the pressing process automatically adjusts the bilateral pressure, thereby automatically adjusting the bilateral compression allowance to achieve uniform grinding wheel hardness. It can also reduce mold wear and effectively extend service life. The grinding wheel forming cavity inside the mold body and the upper and lower pressure heads can quickly and accurately form ceramic CBN grinding wheels, effectively improving the forming speed.

[0004] Based on the above search results, when using this flexible molding die, after the operator puts the material into the cavity, the ceramic CBN grinding wheel can be quickly and accurately formed by the upper and lower pressure heads. However, the operator needs to move the formed grinding wheel directly under the upper pressure head, and after moving it, pour the material back into the cavity. Moving the formed grinding wheel and adding material under the upper pressure head is not only dangerous, but the upper pressure head can also obstruct the operator, making it inconvenient for the operator to move the formed grinding wheel and add material. Utility Model Content

[0005] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a molding die for CBN grinding wheel production. This die solves the problem that it is not only dangerous for workers to handle the formed grinding wheel and add materials at the lower side of the upper pressure head, but also that the upper pressure head can easily obstruct workers, making it inconvenient for workers to handle the formed grinding wheel and add materials.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a molding die for CBN grinding wheel production, comprising a mounting base and an automatic demolding device for grinding wheel forming; a support shaft is fixedly connected to the top of the mounting base, and a turntable is rotatably connected to the upper end of the support shaft; the surface of the turntable has four equally spaced circular slots, and a circular disc is fixedly connected to the top of the turntable; the automatic demolding device for grinding wheel forming includes a hydraulic lift, an upper module, and an arc-shaped pressure plate; the hydraulic lift is fixedly installed on the top of the circular disc, the upper module is fixedly installed on the output end of the hydraulic lift, and the arc-shaped pressure plate is fixedly connected to the top of the mounting base.

[0007] Preferably, a drive motor is fixedly mounted on the surface of the mounting base, and a rotating rod is fixedly connected to the output end of the drive motor.

[0008] Preferably, a cylindrical block is fixedly connected to the end of the rotating rod away from the drive motor, and the surface of the cylindrical block is slidably connected to the inside of the slot.

[0009] Preferably, the top of the disk has four equidistant circular cavities, and each of the four cavities is slidably connected with a slip ring.

[0010] Preferably, the surfaces of the four slip rings are rotatably connected to rotating shafts, and the four rotating shafts are slidably connected inside the disk.

[0011] Preferably, the top of the arc-shaped pressure plate has an inclined surface, and the surface of the rotating shaft is in contact with the inclined surface.

[0012] Preferably, an automatic feeding box is fixedly installed on the top of the disc, and a circular feeding pipe is fixedly connected to the bottom of the automatic feeding box.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The forming mold for CBN grinding wheel production can be rotated upwards by moving the rotating shaft to move the slip ring upwards. The upward movement of the slip ring will move the formed grinding wheel upwards and out of the cavity to complete automatic demolding. Finally, the operator can move the formed grinding wheel and add materials from one side of the upper module. This not only ensures the safety of the operator, but also ensures that the upper module does not obstruct the operator, making it convenient for the operator to move the formed grinding wheel and add materials, thus improving the convenience of grinding wheel production and processing. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic diagram of the overall structure of a molding die for producing CBN grinding wheels according to this utility model;

[0017] Figure 2This is a schematic diagram of the left side structure of a forming mold for producing CBN grinding wheels according to this utility model;

[0018] Figure 3 This is a schematic diagram of the bottom structure of the disc of this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the disc of this utility model.

[0020] Reference numerals: 1. Mounting base; 2. Support shaft; 3. Turntable; 4. Slot; 5. Drive motor; 6. Rotating rod; 7. Cylindrical block; 8. Disc; 9. Cavity; 10. Slip ring; 11. Rotating shaft; 12. Automatic feeding box; 13. Circular feeding tube; 14. Hydraulic lift; 15. Upper module; 16. Arc-shaped pressure plate; 17. Inclined surface. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] Please see Figure 1-4This utility model provides a technical solution: a molding die for CBN grinding wheel production, including a mounting base 1 and an automatic demolding device for grinding wheel forming. A support shaft 2 is fixedly connected to the top of the mounting base 1, and a turntable 3 is rotatably connected to the upper end of the support shaft 2. The surface of the turntable 3 has four equally spaced circular slots 4. A drive motor 5 is fixedly mounted on the surface of the mounting base 1. A rotating rod 6 is fixedly connected to the output end of the drive motor 5. A cylindrical block 7 is fixedly connected to the end of the rotating rod 6 away from the drive motor 5. The surface of the cylindrical block 7 is slidably connected to the inside of the slots 4. A disc 8 is fixedly connected to the top of the turntable 3. The top of the disc 8 has four equally spaced circular cavities 9. Slip rings 10 are slidably connected inside each of the four cavities 9. Rotating shafts 11 are rotatably connected to the surfaces of the four slip rings 10. The four rotating shafts 11 are slidably connected inside the disc 8. An automatic feeding box 12 is fixedly mounted on the top of the disc 8. A circular feeding pipe 13 is fixedly connected to the bottom of the automatic feeding box 12.

[0026] After the staff pours the material into the automatic feeding box 12, the automatic feeding box 12 can automatically add the material into the cavity 9 through the bottom circular feeding pipe 13. The circular feeding pipe 13 can evenly add the material into the cavity 9, improving the uniformity of the material distribution inside the cavity 9. After the staff starts the drive motor 5, the output end of the drive motor 5 rotates, which drives the rotating rod 6 to rotate. The rotation of the rotating rod 6 drives the cylindrical block 7 to rotate in a circle. The rotation of the cylindrical block 7 presses the inner wall of the slot 4, and the pressing action of the cylindrical block 7 drives the turntable 3 to rotate. Since the surface of the turntable 3 has four slots 4, the rotation of the cylindrical block 7 can drive the turntable 3 to rotate intermittently by 90 degrees. The rotation of the turntable 3 can drive the disc 8 to rotate intermittently by 90 degrees.

[0027] The automatic demolding device for grinding wheel forming includes a hydraulic lift 14, an upper module 15, and an arc-shaped pressure plate 16. The hydraulic lift 14 is fixedly installed on the top of the disc 8, the upper module 15 is fixedly installed on the output end of the hydraulic lift 14, and the arc-shaped pressure plate 16 is fixedly connected to the top of the mounting base 1. The top of the arc-shaped pressure plate 16 is provided with an inclined surface 17, and the surface of the rotating shaft 11 is in contact with the inclined surface 17.

[0028] The disc 8 rotates and drives the material through the cavity 9 to the position directly below the upper module 15. At this time, the output shaft of the hydraulic lift 14 moves downward, which drives the upper module 15 to move downward and squeeze the material inside the cavity 9 to form it. After the grinding wheel is formed, the disc 8 continues to rotate and drives the rotating shaft 11 to rotate and squeeze it on the inclined surface 17. Since the inclined surface 17 is inclined, the arc-shaped pressure plate 16 can squeeze the rotating shaft 11 to the upper position through the top inclined surface 17. The rotating shaft 11 moves upward, which drives the slip ring 10 to move upward. The slip ring 10 moves upward, which drives the formed grinding wheel to move upward and move out of the cavity 9 to complete the automatic demolding. Finally, the workers can move the formed grinding wheel and add materials from one side of the upper module 15. This not only ensures the safety of the workers, but also the upper module 15 will not obstruct the workers, making it convenient for the workers to move the formed grinding wheel and add materials, thus improving the convenience of grinding wheel production and processing.

[0029] Working principle: In this CBN grinding wheel production molding die, after the operator pours the material into the automatic feeding box 12, the automatic feeding box 12 automatically adds the material into the cavity 9 through the bottom annular feeding pipe 13. The annular feeding pipe 13 evenly adds the material into the cavity 9, improving the uniformity of material distribution within the cavity 9. After the operator starts the drive motor 5, the output end of the drive motor 5 rotates, which in turn drives the rotating rod 6 to rotate. The rotation of the rotating rod 6 causes the cylindrical block 7 to rotate in a circle. The rotating cylindrical block 7 presses against the inner wall of the slot 4, and through the pressing action of the cylindrical block 7, it drives the turntable 3 to rotate. The rotation of the turntable 3... The disc 8 can be rotated 90 degrees intermittently. The rotation of the disc 8 and the material through the cavity 9 are rotated to the position directly below the upper module 15. At this time, the output shaft of the hydraulic lift 14 moves downward, which can drive the upper module 15 to move downward and squeeze the material inside the cavity 9 to form it. After the grinding wheel is formed, the disc 8 continues to rotate and drives the rotating shaft 11 to rotate and squeeze on the inclined surface 17. The arc-shaped pressure plate 16 can squeeze the rotating shaft 11 to the upper position through the top inclined surface 17. The rotating shaft 11 moves upward, which can drive the slip ring 10 to move upward. The slip ring 10 moves upward, which can drive the formed grinding wheel to move upward and move out of the cavity 9 to complete the automatic demolding.

[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A forming die for producing CBN grinding wheels, characterized in that, include: Mounting base (1) and automatic demolding device for grinding wheel forming; The top of the mounting base (1) is fixedly connected to a support shaft (2), and the upper end of the support shaft (2) is rotatably connected to a turntable (3). The surface of the turntable (3) is circular with four slots (4) evenly spaced. The top of the turntable (3) is fixedly connected to a disc (8). The automatic demolding device for grinding wheel forming includes a hydraulic lift (14), an upper module (15), and an arc-shaped pressure plate (16). The hydraulic lift (14) is fixedly installed on the top of the disc (8), the upper module (15) is fixedly installed on the output end of the hydraulic lift (14), and the arc-shaped pressure plate (16) is fixedly connected to the top of the mounting base (1).

2. The forming mold for CBN grinding wheel production according to claim 1, characterized in that: A drive motor (5) is fixedly mounted on the surface of the mounting base (1), and a rotating rod (6) is fixedly connected to the output end of the drive motor (5).

3. The forming die for producing CBN grinding wheels according to claim 2, characterized in that: A cylindrical block (7) is fixedly connected to one end of the rotating rod (6) away from the drive motor (5), and the surface of the cylindrical block (7) is slidably connected to the inside of the slot (4).

4. The forming die for producing CBN grinding wheels according to claim 1, characterized in that: The top of the disk (8) has four equidistant cavities (9), and each of the four cavities (9) is slidably connected with a slip ring (10).

5. A forming die for producing CBN grinding wheels according to claim 4, characterized in that: The surfaces of the four slip rings (10) are rotatably connected to rotating shafts (11), and the four rotating shafts (11) are slidably connected inside the disk (8).

6. A forming die for producing CBN grinding wheels according to claim 5, characterized in that: The top of the arc-shaped pressure plate (16) is provided with a slope (17), and the surface of the rotating shaft (11) is in contact with the slope (17).

7. A forming die for producing CBN grinding wheels according to claim 1, characterized in that: An automatic feeding box (12) is fixedly installed on the top of the disc (8), and a circular feeding pipe (13) is fixedly connected to the bottom of the automatic feeding box (12).

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