CN219256206U

CN219256206U - Electron gun insulator pouring tool

Info

Publication number: CN219256206U
Application number: CN202320264129.8U
Authority: CN
Inventors: 钟富才; 王立东; 李翠玲; 海兆征; 赵瑞
Original assignee: Hebei Zhonghang High Energy Technology Co ltd
Current assignee: Hebei Zhonghang High Energy Technology Co ltd
Priority date: 2023-02-21
Filing date: 2023-02-21
Publication date: 2023-06-27
Anticipated expiration: 2033-02-21

Abstract

The utility model discloses an electron gun insulator pouring tool which comprises an outer die, an inner core and a lower fixing plate, wherein the inner die is positioned between the outer die and the inner core, and the inner die and the outer die enclose a forming cavity of an insulator; the inner die comprises an upper die and a lower die, an upper cover plate is arranged above the upper die, a base is arranged below the lower die, the base is connected with the lower fixing plate through a bottom plate, and a separation disc for forming an inner groove of the insulator is arranged between the upper die and the lower die; a fixed cover for pressing the upper cover plate is arranged above the inner core, and the inner core is connected with the base; the side wall of the outer die is provided with a joint mandrel for forming the insulator joint, the outer part of the joint mandrel is provided with a housing for forming the outer surface of the joint, the housing is clamped on the outer die, and the joint mandrel is in sliding connection with the housing. The electron gun insulator pouring tool can solve the problem of low success rate of the existing electron gun insulator pouring.

Description

Electron gun insulator pouring tool

Technical Field

The utility model relates to the technical field of insulator casting, in particular to an electron gun insulator casting tool.

Background

The electron gun is an important component in the electron beam vacuum welding equipment, and the insulator is used as a core component of the electron gun and has an important effect on the electron gun. Fig. 4 is a schematic structural view of an electron gun insulator, and fig. 5 is a schematic structural view of a longitudinal section of the electron gun insulator. As shown in the figure, the insulator is formed by casting insulating resin, the inner surface is not a regular plane, the outer surface is also provided with a joint, the shape of the insulator is complex, and the insulator is difficult to mold. And the connectors on the irregular inner surface and outer surface cause difficulty in demolding of the insulator, so that the success rate of pouring the insulator is low. At present, no effective pouring tool exists.

Disclosure of Invention

The utility model aims to provide an electron gun insulator pouring tool, which solves the problem of low success rate of the existing electron gun insulator pouring.

In order to achieve the above purpose, the utility model provides an electron gun insulator pouring tool, which comprises an outer die, an inner core and a lower fixing plate, wherein the inner die is positioned between the outer die and the inner core, and the inner die and the outer die enclose a forming cavity of an insulator; the inner die comprises an upper die and a lower die, an upper cover plate is arranged above the upper die, a base is arranged below the lower die, the base is connected with the lower fixing plate through a bottom plate, and a separation disc for forming an inner groove of the insulator is arranged between the upper die and the lower die; a fixed cover for pressing the upper cover plate is arranged above the inner core, and the inner core is connected with the base; the side wall of the outer die is provided with a joint mandrel for forming the insulator joint, the outer part of the joint mandrel is provided with a housing for forming the outer surface of the joint, the housing is clamped on the outer die, and the joint mandrel is in sliding connection with the housing.

Preferably, the inner core is a metal cylindrical structure for ensuring coaxiality of the outer die and the inner die.

Preferably, the outer die is of an inner-circle square structure, the outer die comprises two half shells which are arranged left and right, a positioning pin is arranged on one half shell connecting surface, a positioning hole is arranged on the other half shell connecting surface, and the other half shells are in positioning connection with the positioning hole through the positioning pin.

Preferably, a first metal baffle is arranged above the separation disc, and a second metal baffle is arranged below the separation disc.

Preferably, the inner core is of an internal cavity structure, a threaded hole for a screw rod to pass through is formed in the top end of the inner core, a through hole for the screw rod to pass through is formed in the bottom end of the inner core, a threaded hole matched with the screw rod is formed in the base, and the inner core is fixedly connected with the base through the screw rod.

Preferably, the upper die and the lower die are polytetrafluoroethylene dies.

Preferably, a positioning sleeve is arranged among the upper cover plate, the upper die and the inner core, and a positioning sleeve is arranged between the lower die and the base; sealing rings are arranged between the upper cover plate and the upper die, between the upper die and the separation disc, between the separation disc and the lower die, between the lower die and the base, between the base and the bottom plate, between the bottom plate and the lower fixing plate, and between the lower fixing plate and the outer die.

Preferably, a locking sleeve for locking the housing and the joint mandrel is arranged outside the housing, an end cover for tightly propping the locking sleeve on the outer die is arranged outside the housing, a bolt is arranged on the joint mandrel, and a threaded hole for allowing the bolt to pass through and be matched with the end cover is arranged on the end cover.

According to the casting tool for the electron gun insulator, the outer mold is of a split structure with the inner circle being square and the outer circle being square, so that the outer mold can be conveniently disassembled, and the insulator can be conveniently demoulded. The inner core of metal is arranged in the inner die, and the inner core is fixedly connected with the base through the screw rod, so that the coaxiality between the inner die and the outer die is improved, and the quality of the insulator is improved. The inner mold consists of a detachable upper mold and a detachable lower mold, an upper cover plate is arranged above the upper mold, and a base is arranged below the lower mold; and the inner mold is made of polytetrafluoroethylene materials, so that the insulator can be conveniently demoulded, and the casting success rate of the insulator is improved.

The technical scheme of the utility model is further described in detail through the drawings and the embodiments.

Drawings

FIG. 1 is a schematic view of a longitudinal section of an embodiment of an electron gun insulator casting tooling according to the present utility model;

FIG. 2 is a schematic perspective view of an embodiment of an electron gun insulator casting tool according to the present utility model;

FIG. 3 is a schematic view of a longitudinal section of an insulator joint in an embodiment of an electron gun insulator casting tool according to the present utility model;

FIG. 4 is a schematic diagram of an electron gun insulator structure;

fig. 5 is a schematic view of a longitudinal section of an electron gun insulator.

Reference numerals

1. An outer mold; 2. a lower fixing plate; 3. an insulator; 4. an inner core; 5. an upper cover plate; 6. a fixed cover; 7. a screw rod; 8. an upper die; 9. a lower die; 10. a first baffle; 11. a separation plate; 12. a second baffle plate; 13. a base; 14. a bottom plate; 15. a positioning pin; 16. a positioning sleeve; 17. a seal ring; 18. an end cap; 19. a locking sleeve; 20. a joint mandrel; 21. a housing.

Detailed Description

The technical scheme of the utility model is further described below through the attached drawings and the embodiments.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

Examples

Fig. 1 is a schematic longitudinal section structure of an embodiment of an electron gun insulator casting tool according to the present utility model, and fig. 2 is a schematic perspective structure of an embodiment of an electron gun insulator casting tool according to the present utility model. The utility model provides an electron gun insulator pouring frock, includes outer mould 1, interior mould, inner core 4 and lower fixed plate 2, and interior mould is located between outer mould 1 and inner core 4, and interior mould encloses into the shaping die cavity of insulator 3 with outer mould 1. The outer die 1 is placed on the lower fixing plate 2 and can be detachably connected with the lower fixing plate 2 through screws. The lower fixing plate 2 is provided with supporting legs for supporting the whole tool.

The outer die 1 is of an inner-circle outer-square structure, and is convenient for operators to carry and operate while forming the cylindrical outer surface of the insulator 3. The outer die 1 comprises two half shells which are arranged left and right, a positioning pin 15 is arranged on one half shell connecting surface, a positioning hole is arranged on the other half shell connecting surface, and the other half shells are connected with the positioning hole in a positioning way through the positioning pin 15. The outer mould 1 is provided in a two-half shell structure, and the outer mould 1 can be opened, so that the insulator 3 can be conveniently demoulded.

The inner die comprises an upper die 8 and a lower die 9, an upper cover plate 5 is arranged above the upper die 8, a base 13 is arranged below the lower die 9, and the lower die 9 is placed on the base 13. The base 13 is connected with the lower fixing plate 2 through a bottom plate 14. The base 13 is fixed to the bottom plate 14 by screws, and the bottom plate 14 is fixed to the lower fixing plate 2 by screws.

The upper die 8 and the lower die 9 are both polytetrafluoroethylene dies, and the polytetrafluoroethylene dies facilitate the demolding of the insulator 3.

A separation disc 11 for forming the inner groove of the insulator 3 is arranged between the upper die 8 and the lower die 9. The metal baffle plate I10 is arranged above the separation disc 11, the metal baffle plate II 12 is arranged below the separation disc 11, and the metal baffle plate I10 and the metal baffle plate II 12 avoid damaging the surface of the separation disc 11 in the demolding process.

The inner core 4 is a metal cylindrical structure for ensuring coaxiality of the outer die 1 and the inner die. The inner core 4 is of an internal cavity structure, a threaded hole for the screw rod 7 to pass through is formed in the top end of the inner core 4, and a through hole for the screw rod 7 to pass through is formed in the bottom end of the inner core 4. The base 13 is provided with a threaded hole matched with the screw rod 7. The inner core 4 is fixedly connected with the base 13 through the screw rod 7, so that the stability of the fixing of the inner core 4 and the coaxiality of the inner core 4 and the base 13 are ensured. A fixed cover 6 for pressing the upper cover plate 5 is arranged above the inner core 4, and the fixed cover 6 is fixedly connected with the top end of the inner core 4 through a screw. The fixed cover 6 is pressed over the upper cover 5, thereby fixing the upper cover 5, the upper mold 8, and the lower mold 9 between the fixed cover 6 and the base 13.

A positioning sleeve 16 is arranged among the upper cover plate 5, the upper die 8 and the inner core 4, and a positioning sleeve 16 is arranged between the lower die 9 and the base 13, so that the upper cover plate 5, the upper die 8 and the lower die 9 can be positioned and installed conveniently. O-shaped rubber sealing rings 17 are arranged between the upper cover plate 5 and the upper die 8, between the upper die 8 and the separation disc 11, between the separation disc 11 and the lower die 9, between the lower die 9 and the base 13, between the base 13 and the base plate 14, between the base plate 14 and the lower fixing plate 2, and between the lower fixing plate 2 and the outer die 1, so that the sealing effect of the joint is improved.

Fig. 3 is a schematic view of a longitudinal section structure of an insulator joint in an embodiment of an electron gun insulator casting tool according to the present utility model. As shown in the figure, a joint mandrel 20 for forming the joint of the insulator 3 is arranged on the side wall of the outer die 1, a housing 21 for forming the outer surface of the joint is arranged outside the joint mandrel 20, and the housing 21 is clamped on the outer die 1. The joint mandrel 20 is slidably connected to the housing 21. The cover 21 is provided with an end cap 18 on the outside, and the end cap 18 is provided with a threaded hole through which a bolt is passed and fitted, and one end of the bolt is fixed to the joint core shaft 20. A locking sleeve 19 is arranged between the end cap 18 and the outer mould tool 1 for locking the housing 21 with the joint mandrel 20. The end cover 18 is rotated, the threaded holes of the end cover 18 are meshed with the bolts, and the end cover 18 moves towards the direction approaching to the outer die 1, so that the locking sleeve 19 is tightly pressed against the outer die 1, and locking connection between the housing 21 and the joint mandrel 20 is realized.

Therefore, the electron gun insulator pouring tool can solve the problem of low success rate of the existing electron gun insulator pouring.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting it, and although the present utility model has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the utility model can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the utility model.

Claims

1. An electron gun insulator pouring frock, its characterized in that: the insulator forming device comprises an outer die, an inner core and a lower fixing plate, wherein the inner die is positioned between the outer die and the inner core, and the inner die and the outer die enclose a forming cavity of the insulator; the inner die comprises an upper die and a lower die, an upper cover plate is arranged above the upper die, a base is arranged below the lower die, the base is connected with the lower fixing plate through a bottom plate, and a separation disc for forming an inner groove of the insulator is arranged between the upper die and the lower die; a fixed cover for pressing the upper cover plate is arranged above the inner core, and the inner core is connected with the base; the side wall of the outer die is provided with a joint mandrel for forming the insulator joint, the outer part of the joint mandrel is provided with a housing for forming the outer surface of the joint, the housing is clamped on the outer die, and the joint mandrel is in sliding connection with the housing.

2. The electron gun insulator casting tooling according to claim 1, wherein: the inner core is of a metal cylindrical structure for ensuring coaxiality of the outer die and the inner die.

3. The electron gun insulator casting tooling according to claim 1, wherein: the outer die is of an inner circular square structure, the outer die comprises two half shells which are arranged left and right, a positioning pin is arranged on one half shell connecting surface, a positioning hole is arranged on the other half shell connecting surface, and the other half shells are in positioning connection with the positioning hole through the positioning pin.

4. The electron gun insulator casting tooling according to claim 1, wherein: the upper side of the separation disc is provided with a first metal baffle, and the lower side of the separation disc is provided with a second metal baffle.

5. The electron gun insulator casting tooling according to claim 1, wherein: the inner core is of an internal cavity structure, a threaded hole for a screw rod to pass through is formed in the top end of the inner core, a through hole for the screw rod to pass through is formed in the bottom end of the inner core, a threaded hole matched with the screw rod is formed in the base, and the inner core is fixedly connected with the base through the screw rod.

6. The electron gun insulator casting tooling according to claim 1, wherein: the upper die and the lower die are polytetrafluoroethylene dies.

7. The electron gun insulator casting tooling according to claim 1, wherein: a positioning sleeve is arranged among the upper cover plate, the upper die and the inner core, and a positioning sleeve is arranged between the lower die and the base; sealing rings are arranged between the upper cover plate and the upper die, between the upper die and the separation disc, between the separation disc and the lower die, between the lower die and the base, between the base and the bottom plate, between the bottom plate and the lower fixing plate, and between the lower fixing plate and the outer die.

8. The electron gun insulator casting tooling according to claim 1, wherein: the outer part of the housing is provided with a locking sleeve for locking the housing and the joint mandrel, the outer part of the housing is provided with an end cover for tightly propping the locking sleeve on the outer die, the joint mandrel is provided with a bolt, and the end cover is provided with a threaded hole for allowing the bolt to pass through and be matched with the threaded hole.