CN213106383U - Pressing die for special-shaped cylindrical grinding wheel - Google Patents
Pressing die for special-shaped cylindrical grinding wheel Download PDFInfo
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- CN213106383U CN213106383U CN202021841659.7U CN202021841659U CN213106383U CN 213106383 U CN213106383 U CN 213106383U CN 202021841659 U CN202021841659 U CN 202021841659U CN 213106383 U CN213106383 U CN 213106383U
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Abstract
The utility model discloses a pressing die for a special-shaped cylindrical grinding wheel, which comprises a die frame, wherein a through groove is arranged at the center of the die frame; a lower pressing head matched with the bottom of the through groove is installed at the bottom of the through groove, a boss with an E-shaped cross section is arranged on one side of the top of the lower pressing head, a lower section cavity is formed between the inner side of the boss and the inner wall of the through groove, a lower section grinding material is placed in the lower section cavity in a first pressing state, and the top end face of the tamped and compressed lower section grinding material is flush with the upper end face of the boss; under the second suppression state, arrange the middle section abrasive material in the top of compression moulding's hypomere abrasive material and lower pressure head, and by the tight compaction of being supported, under the suppression state of the third time, arrange the side pressure head in the middle section abrasive material and be located fan-shaped outward flange one side, another lateral wall and the relative logical inslot wall of side pressure head form the upper segment cavity, arrange the upper segment abrasive material in the upper segment cavity, wear to establish the pressure head in the upper segment cavity for with the upper segment abrasive material compression moulding.
Description
Technical Field
The utility model relates to an abrasive material grinding apparatus processing field, more specifically say, it relates to a heterotypic cylindrical grinding emery wheel embossing mold utensil.
Background
The density uniformity of the grinding material of the grinding wheel directly influences the product quality of the grinding wheel, and for the special-shaped grinding material of the grinding wheel, the product quality is unqualified and batch scrapping is caused due to the uneven density of the grinding material caused by improper pressing method. The grinding material structure of the common cylindrical grinding machine adopts one-time feeding and pressing, so that the product quality can be effectively ensured, and for the special-shaped cylindrical grinding wheel, if one-time feeding and pressing are still adopted, the material cannot be uniformly fed due to the turning points, the density is uneven, the product quality is unqualified, and even if material smashing is adopted for multiple times, the pressing density is not easy to be ensured to be uniform, and the product quality is uncontrollable.
Therefore, a pressing die for the special-shaped cylindrical grinding wheel is needed, the single-section special-shaped cylindrical grinding wheel block is formed by three-time feeding and pressing, the problem of uneven one-time pressing density of the special-shaped cylindrical grinding wheel is effectively solved, and the product quality is improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a not enough to prior art exists, the utility model aims to provide a heterotypic cylindrical grinding wheel embossing mold utensil, it throws the material suppression through the cubic and forms single section heterotypic cylindrical grinding wheel piece to bond the lateral wall of a plurality of single section grinding wheel piece of press forming together through the binder and can form whole heterotypic cylindrical grinding wheel, abrasive density homogeneity can effectively be guaranteed to this mould, improves product quality.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a pressing die for a special-shaped cylindrical grinding wheel comprises a die frame, wherein a through groove is formed in the center of the die frame, and the cross section of the through groove is fan-shaped;
a lower pressing head matched with the bottom of the through groove is installed at the bottom of the through groove, the side wall of the lower pressing head is in seamless fit with the side wall of the through groove, the bottom surface of the lower pressing head is flush with the bottom surface of the die frame, a boss with a cross section in an F shape is arranged on one side of the top of the lower pressing head, and a lower section cavity is formed between the inner side of the boss and the inner wall of the through groove;
in a first pressing state, a lower section of grinding material is placed in the lower section of cavity, and the top end surface of the lower section of grinding material after tamping is flush with the upper end surface of the boss;
under the second pressing state, the middle section of grinding material is arranged above the lower section of grinding material and the lower pressing head which are pressed and formed, and is tamped and compacted;
under a third pressing state, a side pressure head is arranged above the middle section grinding material and located on one side of the outer edge of the fan shape, the bottom surface of the side pressure head is tightly pressed against the top surface of the middle section grinding material, three side walls of the side pressure head are respectively in seamless fit with the inner walls of the adjacent through grooves, an upper section cavity is formed between the other side wall of the side pressure head and the inner wall of the opposite through groove, the upper section grinding material is arranged in the upper section cavity, an upper pressure head penetrates through the upper section cavity, and the bottom end surface of the upper pressure head is matched with the upper section cavity in shape and used for pressing and forming the upper section grinding material;
the upper section grinding material, the middle section grinding material and the lower section grinding material which are integrally pressed and formed form a single-section special-shaped external grinding wheel block.
The utility model discloses further set up to: and a bolt for fixing the two mandrels is arranged on the side wall of the base, and the bottom end of the bolt transversely penetrates through the base from the outer side wall of the base and abuts against the first mandrel on the outer side wall of the second mandrel.
The utility model discloses further set up to: threaded holes are formed in the outer end faces of the upper pressure head and the side pressure head, and bolts matched with the threaded holes are installed in the threaded holes so that the two pressure heads can be pulled out conveniently.
The utility model discloses further set up to: and the edge of the bottom surface of the lower pressure head is provided with an overrun groove I, and the bottom surface of the die frame corresponding to the overrun groove is provided with an overrun groove II.
To sum up, the utility model discloses following beneficial effect has:
assembling a die frame and a lower pressing head together, placing the die frame and the lower pressing head on a manufacturing platform, placing a lower section of grinding material weighed in advance in a lower section of cavity, leveling the upper end surface of the lower section of grinding material by using a special leveling plate, and pressing and molding the lower section of grinding material by using an auxiliary pressing head; taking out the auxiliary pressure head, throwing the middle-section grinding material weighed in advance above the lower-section grinding material and the lower pressure head which are subjected to compression molding, leveling the top end surface of the middle-section grinding material by using a special poking plate, and then performing compression molding by using the auxiliary pressure head; and taking out the auxiliary pressure head, placing the side pressure head on one side of the middle section grinding material positioned on the outer edge of the fan shape, placing the upper section grinding material weighed in advance in the upper section cavity, flattening the upper end surface of the upper section grinding material by using a shifting plate, performing compression molding on the upper section grinding material by using the upper pressure head, ejecting the grinding material and the pressure head by using a mold unloading clamping fixture after the compression is finished, and bonding the side walls of a plurality of single-section grinding wheel blocks subjected to compression molding together by using a bonding agent to form a complete special-shaped cylindrical grinding wheel. In the process, the single-section special-shaped cylindrical grinding wheel block can be pressed by three times of feeding and pressing, so that the density uniformity of the grinding material can be ensured, and the product quality is effectively improved; the connection position of the three sections of grinding materials is leveled by the poking plate during each pressing, so that the three sections of grinding materials are conveniently connected and pressed together, and the product quality is ensured;
the threaded holes are formed in the outer surfaces of the upper pressure head and the side pressure head, so that the two pressure heads are pulled out after the threaded holes are provided with the bolts matched with the threaded holes, and after pressing is finished, the forming grinding materials and the pressure heads can be matched with the die unloading clamping fixture to be unloaded from the die frame.
Drawings
FIG. 1 is a front sectional view of the structure of the present invention;
fig. 2 is an external perspective view of the present invention;
fig. 3 is a schematic perspective view of a single-segment special-shaped cylindrical grinding wheel block formed by pressing.
Reference numerals: 1. a mold frame; 2. a second overtravel groove; 3. a lower pressure head; 4. a lower cavity; 5. a side indenter; 6. an upper section cavity; 7. a lower segment of abrasive material; 8. a middle section grinding material; 9. an upper section of abrasive material; 10. an upper pressure head; 11. a threaded hole; 12. and an overtravel groove I.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Example (b): a pressing die for a special-shaped cylindrical grinding wheel is used for forming a single-section special-shaped cylindrical grinding wheel block through three-time feeding and pressing, so that the density uniformity of grinding materials can be effectively ensured, and the product quality is improved. As shown in fig. 1 and 2, the mold comprises a mold frame 1, wherein a through groove is formed in the center of the mold frame 1, and the cross section of the through groove is fan-shaped;
a lower pressing head 3 matched with the bottom of the through groove is arranged at the bottom of the through groove, the side wall of the lower pressing head 3 is in seamless fit with the side wall of the through groove, the bottom surface of the lower pressing head 3 is flush with the bottom surface of the die frame 1, a boss with an 'F' -shaped cross section is arranged on one side of the top of the lower pressing head 3, and a lower section cavity 4 is formed between the inner side of the boss and the inner wall of the through groove;
in a first pressing state, a lower section of grinding material 7 is placed in the lower section of cavity 4, and the top end surface of the lower section of grinding material 7 after tamping is flush with the upper end surface of the boss; in the second pressing state, the middle section grinding material 8 is placed above the lower section grinding material 7 and the lower pressing head 3 which are formed by pressing, and is tamped and compacted; under the third pressing state, the side pressing head 5 is arranged above the middle section grinding material 8 and located on one side of the outer edge of the fan shape, the bottom surface of the side pressing head 5 is abutted against and compacted with the top surface of the middle section grinding material 8, three side walls of the side pressing head 5 are respectively in seamless fit with the inner walls of the adjacent through grooves, an upper section cavity 6 is formed between the other side wall of the side pressing head 5 and the inner wall of the opposite through groove, the upper section grinding material 9 is arranged in the upper section cavity 6, an upper pressing head 10 penetrates through the upper section cavity 6, the bottom end face of the upper pressing head 10 is matched with the shape of the upper section cavity 6 and used for pressing and forming the upper section grinding material 9, and the upper section grinding material 9, the middle section grinding material 8 and the lower section grinding material 7.
The manufacturing process comprises the following steps: firstly, assembling a die frame 1 and a lower pressure head 3 together, placing the die frame and the lower pressure head on a manufacturing platform, placing the lower section abrasive 7 weighed in advance in a lower section cavity 4, leveling the upper end face of the lower section abrasive 7 by using a special leveling plate, and pressing and molding the lower section abrasive 7 by using an auxiliary pressure head; taking out the auxiliary pressure head, throwing middle-section abrasive 8 weighed in advance above the lower-section abrasive 7 and the lower pressure head 3 which are formed by pressing, leveling the top end face of the middle-section abrasive by using a special poking plate, and then pressing and forming the middle-section abrasive by using the auxiliary pressure head; taking out the auxiliary pressure head, placing the side pressure head 5 on the middle section grinding material 8 on one side of the outer edge of the fan shape, placing the upper section grinding material 9 weighed in advance in the upper section cavity 6, leveling the upper end face of the upper section grinding material 9 by using a leveling plate, and pressing and molding the upper section grinding material 9 by using an upper pressure head 10; referring to fig. 3, after pressing, the grinding material and the pressure head are ejected by using a mold unloading clamping fixture, the ejected single-section grinding wheel blocks formed by pressing are separated from the pressure head, the side walls of the plurality of single-section grinding wheel blocks formed by pressing are bonded together by a bonding agent to form a complete special-shaped external grinding wheel, and finally, the whole external grinding wheel formed by pressing is fired.
Before the manufacturing process, the external shape profile of the single-section cylindrical grinding wheel block is determined according to the whole formed cylindrical grinding wheel, so as to determine the fan-shaped profile of the through groove and the shapes of the lower-section cavity 4 and the upper-section cavity 6, so that the dies such as the die frame 1, the lower pressing head 3, the side pressing head 5, the upper pressing head 10 and the like can be manufactured.
Referring to fig. 2, threaded holes 11 are formed in the outer end surfaces of the upper indenter 10 and the side indenter 5, and bolts fitted into the threaded holes 11 are installed to facilitate the extraction of the two indenters. After pressing, the arrangement can be matched with a mould unloading clamping fixture to unload the abrasive and the pressure head from the mould frame 1.
In the process of manufacturing the through groove of the die frame 1 and the bottom surface of the lower pressing head 3, the included angle cannot be ground to the required precision and roughness, and the lower pressing head 3 and the die frame 1 cannot be installed, so that the edge of the bottom surface of the lower pressing head 3 is provided with an overrun groove I12, and the bottom surface of the die frame 1 corresponding to the overrun groove I12 is provided with an overrun groove II 2.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (3)
1. The pressing die for the special-shaped cylindrical grinding wheel is characterized by comprising a die frame (1), wherein a through groove is formed in the center of the die frame (1), and the cross section of the through groove is in a fan shape;
a lower pressing head (3) matched with the bottom of the through groove is mounted at the bottom of the through groove, the side wall of the lower pressing head (3) is in seamless fit with the side wall of the through groove, the bottom surface of the lower pressing head (3) is flush with the bottom surface of the die frame (1), a boss with an inverted F-shaped cross section is arranged on one side of the top of the lower pressing head (3), and a lower section cavity (4) is formed between the inner side of the boss and the inner wall of the through groove;
in a first pressing state, a lower section of grinding material (7) is placed in the lower section of cavity (4), and the top end surface of the lower section of grinding material (7) after tamping is flush with the upper end surface of the boss;
under the second pressing state, the middle section grinding material (8) is arranged above the lower section grinding material (7) and the lower pressing head (3) which are formed by pressing and is tamped and compacted;
under a third pressing state, a side pressure head (5) is arranged above the middle section grinding material (8) and located on one side of the outer edge of the fan shape, the bottom surface of the side pressure head (5) is tightly pressed against the top surface of the middle section grinding material (8), three side walls of the side pressure head (5) are respectively in seamless fit with the inner walls of the adjacent through grooves, an upper section cavity (6) is formed between the other side wall of the side pressure head (5) and the inner wall of the opposite through groove, the upper section grinding material (9) is arranged in the upper section cavity (6), an upper pressure head (10) penetrates through the upper section cavity (6), and the bottom end surface of the upper pressure head (10) is matched with the upper section cavity (6) in shape and used for pressing and forming the upper section grinding material (9);
the upper section grinding material (9), the middle section grinding material (8) and the lower section grinding material (7) which are integrally pressed and formed form a single-section special-shaped external grinding wheel block.
2. The special-shaped external grinding wheel pressing die according to claim 1, characterized in that threaded holes (11) are formed in the outer end faces of the upper pressing head (10) and the side pressing heads (5), and bolts matched with the threaded holes (11) are installed in the threaded holes (11) so as to facilitate the extraction of the two pressing heads.
3. The special-shaped cylindrical grinding wheel pressing die as claimed in claim 1, wherein a first overrun groove (12) is formed at the edge of the bottom surface of the lower pressing head (3), and a second overrun groove (2) is formed in the bottom surface of the die frame (1) corresponding to the first overrun groove (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021841659.7U CN213106383U (en) | 2020-08-28 | 2020-08-28 | Pressing die for special-shaped cylindrical grinding wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021841659.7U CN213106383U (en) | 2020-08-28 | 2020-08-28 | Pressing die for special-shaped cylindrical grinding wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213106383U true CN213106383U (en) | 2021-05-04 |
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ID=75657031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021841659.7U Active CN213106383U (en) | 2020-08-28 | 2020-08-28 | Pressing die for special-shaped cylindrical grinding wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213106383U (en) |
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2020
- 2020-08-28 CN CN202021841659.7U patent/CN213106383U/en active Active
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