Quickly dismounting die head

Abstract

The utility model discloses a quick dismounting tight mouth mould, the inside wall of outer module is provided with arc clamping slot, and the inner module is clamped in the arc clamping slot of corresponding outer module, and the outside wall of inner module is provided with second draw stud mounting hole radially, the slot wall of arc clamping slot is provided with first draw stud mounting hole radially, and the second draw stud mounting hole is installed with draw stud, and the other end of draw stud is installed in corresponding first draw stud mounting hole, and the outside wall of inner module is close to the slot wall of arc clamping slot. The utility model has the beneficial effects that: inner module and outer module are all several petals, when installing, through draw stud positioning, realize accurate installation of inner module and outer module, and when disassembling, separate inner module and outer module through tool, adopt screw rod and the screw hole cooperation of inner module, just take out inner module, therefore, can change different model inner module on the same tight mouth device according to actual condition, just can realize the tight mouth of different model cylinder, thereby, reduced production cost.

Description

Technical Field

[0001] This utility model relates to a sealing mold, and in particular to a quick-assembly and disassembly sealing mold. Background Technology

[0002] With the increasing demands for national security, the requirements for the quality and wartime support capabilities of weapons and ammunition are constantly increasing, thus raising the requirements for the efficiency and quality of ammunition production. The pressing and assembly of finished cartridges is a key process in ammunition production.

[0003] The sealing process is the final step in bonding the cartridge case to the projectile (projectile), and it is also the last step in the shell assembly process. During the assembly of small and medium caliber shells, a sealing device is needed to tightly bond the projectile to the cartridge case, ensuring that the extraction force remains within a certain range and stable, thereby achieving the intended ballistic target.

[0004] After the muzzle is tightened, it is necessary to ensure that the projectile body and the cartridge case have a high degree of coaxiality after the muzzle is assembled. Moreover, there are many types of projectiles, which means that multiple muzzle molds and multiple muzzle devices are required, which undoubtedly increases the production cost. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a quick-assembly and disassembly clamping mold.

[0006] The purpose of this utility model is achieved through the following technical solution: a quick-assembly and disassembly clamping mold, comprising several outer modules and inner modules corresponding to the number of outer modules. The bottom outer wall of the outer module is a guide conical surface, and several outer modules can be spliced ​​into a circular structure. Several inner modules can also be spliced ​​into a circular structure. The upper edge of the outer module extends inward to form an upper arc-shaped flange, and the lower edge of the outer module extends inward to form a lower arc-shaped flange. An arc-shaped groove is formed between the upper arc-shaped flange and the lower arc-shaped flange. The inner module is clamped in the arc-shaped groove of the corresponding outer module. A second pull rivet mounting hole is radially opened on the outer wall of the inner module. A first pull rivet mounting hole is radially opened on the groove wall of the arc-shaped groove. A pull rivet is installed in the second pull rivet mounting hole. The other end of the pull rivet is installed in the corresponding first pull rivet mounting hole. The outer wall of the inner module is in close contact with the groove wall of the arc-shaped groove.

[0007] Optionally, the top of the outer module is provided with a first screw hole axially.

[0008] Optionally, the first screw hole is connected to the first rivet mounting hole.

[0009] Optionally, the outer module may also have air storage holes on its circumferential sidewalls.

[0010] Optionally, a second screw hole is provided axially on the top of the inner module.

[0011] Optionally, the second screw hole is connected to the second rivet mounting hole.

[0012] This utility model has the following advantages: The quick-assembly and disassembly clamping mold of this utility model has several segments for both the inner and outer modules. During installation, the inner and outer modules are positioned by pull pins to achieve precise installation. During disassembly, the inner and outer modules are separated by tools, and the inner module is removed by engaging the screw with the screw hole of the inner module. Therefore, different models of inner modules can be replaced on the same clamping device according to the actual situation to achieve different models of cylinder clamping, thereby reducing production costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0015] Figure 3 for Figure 2 Schematic diagram of the cross section of AA;

[0016] Figure 4 This is a schematic diagram of the external module;

[0017] Figure 5 This is a structural diagram of the internal module;

[0018] In the diagram, 10-outer module, 11-first gap, 12-first screw hole, 13-air storage hole, 14-first rivet mounting hole, 15-upper arc-shaped flange, 16-lower arc-shaped flange, 17-arc groove, 18-guide conical surface, 20-inner module, 21-second gap, 22-second screw hole, 23-second rivet mounting hole, 30-rivet. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used 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. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] like Figure 1 , Figure 2 and Figure 3As shown, a quick-release and quick-release clamping mold includes several outer modules 10 and inner modules 20 corresponding to the number of outer modules 10. The bottom outer side wall of the outer module 10 is a guide cone surface 18, and several outer modules 10 can be spliced ​​into a circular structure. In use, the guide cone surface 18 is used in conjunction with a cone surface. When the guide cone surface 18 moves along the cone surface, the several outer modules 10 can be spliced ​​into a circular structure through the guidance of the guide cone surface 18. When the outer modules 10 are spliced ​​into a circular structure, several inner modules 20 can also be spliced ​​into a circular structure. In this embodiment, when the quick-release and quick-release clamping mold is not clamped, that is, in the initial installation state, adjacent outer modules 10 have a first gap in the circumferential direction. Similarly, adjacent inner modules 20 also have a second gap in the circumferential direction. When clamping, the first gap and the second gap gradually decrease until they disappear, thereby gradually reducing the circumference of the inner modules 20, thus completing the clamping of the workpiece. Further, as... Figure 4As shown, the upper edge of the outer module 10 extends inward to form an upper arc-shaped flange 15, and the lower edge of the outer module 10 extends inward to form a lower arc-shaped flange 16. An arc-shaped groove 17 is formed between the upper arc-shaped flange 15 and the lower arc-shaped flange 16. The inner module 20 is inserted into the corresponding arc-shaped groove 17 of the outer module 10, so that when the outer module 10 contracts in the circumferential direction, it can drive the inner module 20 to contract in the circumferential direction. In this embodiment, in order to ensure the reliability of the installation between the outer module 10 and the inner module 20, the inner module 20 is inserted into the inner module 20. A second rivet mounting hole 23 is radially formed on the outer wall of the inner module 20, and a first rivet mounting hole 14 is radially formed on the groove wall of the arc-shaped groove 17. A rivet 30 is installed in the second rivet mounting hole 23, and the other end of the rivet 30 is installed in the corresponding first rivet mounting hole 14. The outer wall of the inner module 20 is in close contact with the groove wall of the arc-shaped groove 17. During installation, one end of the rivet 30 is first installed in the second rivet mounting hole 23 of the inner module 20, and then the other end of the rivet 30 is installed in the first rivet mounting hole 14. Therefore, the pull rivet 30 has a positioning function, ensuring that the relative position between the inner module 20 and the outer module 10 is stable after the inner module 20 is installed in the arc-shaped slot 17. In this embodiment, the pull rivet 30 is a commercially available product, and those skilled in the art can select a suitable pull rivet 30 according to the actual situation. When disassembling, after the external force of the quick-release clamping mold disappears, the quick-release clamping mold will loosen. If it is necessary to separate the inner module 20 and the outer module 10, a prying tool with a thin sheet structure is used to separate the inner module 20 and the outer module 10, and finally the pull rivet 30 is disengaged from the first pull rivet mounting hole 14, and the inner module 20 can be removed. The prying tool is existing technology, and those skilled in the art can make conventional selections. If it is necessary to change the model of the inner module 20, the pull rivet 30 is installed in the second pull rivet mounting hole 23 of the inner module 20, and then the other end of the pull rivet 30 is installed in the first pull rivet mounting hole 14, so that the outer wall of the inner module 20 is in close contact with the groove wall of the arc-shaped slot 17, and the installation of the inner module 20 can be completed.

[0026] In this embodiment, as Figure 4 As shown, the top of the outer module 10 is provided with a first screw hole 12. When disassembling the outer module 10, a first screw can be installed in the first screw hole 12. Then, by extracting the first screw, the outer module 10 can be taken out of the mold. Furthermore, the first screw hole 12 is connected to the first rivet mounting hole 14. Therefore, during the installation of the rivet 30, the gas in the first rivet mounting hole 14 can be discharged through the first screw hole 12, thereby avoiding the air resistance in the first rivet mounting hole 14 from affecting the installation of the rivet 30. Moreover, when disassembling the rivet 30, a negative pressure will not be formed in the first rivet mounting hole 14, thereby facilitating the rivet 30 to detach from the first rivet mounting hole 14.

[0027] In this embodiment, when the outer module 10 and inner module 20 are not tightened, there is a first gap 11 between adjacent outer modules 10 and a second gap 21 between adjacent inner modules 20, such as... Figure 4 As shown, the outer module 10 also has an air storage hole 13 on its side wall in the circumferential direction. When the outer module 10 shrinks, most of the gas in the first gap 11 is discharged through the gap. If the outer module 10 shrinks too quickly, a small amount of gas cannot be discharged from the gap in time, thus affecting the fit between adjacent outer modules 10. At this time, this part of the gas can be stored in the air storage hole 13, thus ensuring that the adjacent outer modules 10 can fit tightly during the sealing process. Of course, the gas itself is very small, and even if the gas enters the air storage hole 13, it will not form an air blockage and affect the fit between adjacent outer modules 10.

[0028] In this embodiment, as Figure 5 As shown, the top of the inner module 20 is provided with a second screw hole 22. Similarly, during disassembly, a second screw is installed on the second module. After the inner module 20 and the outer module 10 are pried apart with a tool, the inner module 20 disengages from the arc-shaped slot 17. By removing the second screw, the outer module 10 can be taken out. Furthermore, the second screw hole 22 is connected to the second rivet mounting hole 23. Similarly, there will be no air resistance during the installation of the rivet 30 and the inner module 20, and there will be no negative pressure during disassembly, which facilitates the installation of the rivet 30 and the inner module 20.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A quick-release and assembly clamping die, characterized in that: The device includes several outer modules and inner modules corresponding to the number of outer modules. The bottom outer wall of each outer module is a guide cone surface, and several outer modules can be assembled into a circular structure. Several inner modules can also be assembled into a circular structure. The upper edge of each outer module extends inward to form an upper arc-shaped flange, and the lower edge of each outer module extends inward to form a lower arc-shaped flange. An arc-shaped groove is formed between the upper and lower arc-shaped flanges. The inner modules are fitted into the arc-shaped grooves corresponding to the outer modules. A second rivet mounting hole is radially opened on the outer wall of each inner module, and a first rivet mounting hole is radially opened on the groove wall of the arc-shaped groove. A rivet is installed in the second rivet mounting hole, and the other end of the rivet is installed in the corresponding first rivet mounting hole. The outer wall of the inner module is in close contact with the groove wall of the arc-shaped groove.

2. The quick-release and assembly clamping mold according to claim 1, characterized in that: The top of the outer module has a first screw hole axially formed.

3. The quick-release and assembly clamping mold according to claim 2, characterized in that: The first screw hole is connected to the first rivet mounting hole.

4. A quick-release and assembly clamping mold according to claim 3, characterized in that: The outer module also has air storage holes on its circumferential sidewalls.

5. A quick-release and quick-release clamping mold according to any one of claims 1 to 4, characterized in that: The top of the inner module has a second screw hole axially formed.

6. A quick-release and assembly clamping die according to claim 5, characterized in that: The second screw hole is connected to the second rivet mounting hole.

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