Machining die and machining device of waveguide tube

Abstract

The utility model relates to the technical field of microwave devices, and particularly discloses a waveguide tube processing die and a processing device thereof, which comprise a pressurizing die, a forming die and a telescopic device, a top plate is arranged at the top of the pressurizing die, the forming die is arranged on the bottom plate, and the telescopic device is arranged between the top plate and the bottom plate. The pressurizing die comprises a first layer plate, a second layer plate and a third layer plate; a positioning hole and a spring hole are formed in the corresponding positions of the pressurizing die and the top plate; the forming die is arranged at the bottom of the pressurizing die; the pressurizing die is in contact with the top of the forming die through the springs arranged in the plurality of spring holes for pressurizing; a distance is formed between the pressurizing die and the forming die; the forming die comprises an upper die and a lower die; the upper die and the lower die are provided with a first forming groove and a second forming groove; the forming die is detachably connected with the supporting piece; the first forming grooves and the second forming grooves of the upper die and the lower die are prefabricated according to disassembly of the forming dies, and the machined waveguide tubes are easier to assemble and disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of microwave device, in particular to a processing mould of a waveguide and a processing device thereof. Background Art

[0002] In the metal processing industry, waveguide devices are a common and important component used in microwave communications, radar systems, satellite communications, etc. Among them, double-ridge waveguide is a common waveguide structure, which has a wide frequency band, low loss and excellent anti-interference ability, and is widely used in the communication field.

[0003] In the patent "A Weight-Type Double-Ridged Waveguide Bending Die" (publication number CN202934032U, hereinafter referred to as prior art 1), a weight-type double-ridged waveguide bending die is disclosed. The manufacture of the double-ridged waveguide requires bending of the metal plate to form its specific structure. In prior art 1, the straight double-ridged waveguide is placed in the bending die assembly to ensure that the waveguide is close to the radius bending die straight section and is flush with the radius guide die straight section in the guide die assembly. Under the action of the hydraulic cylinder, the middle die wheel moves a certain gap in the vertical direction to clamp the waveguide tube; the hydraulic wheel drives the main and auxiliary die assemblies to move horizontally to the other side of the clamped waveguide tube under the action of the hydraulic pressure to ensure that the waveguide is in the correct clamping position; under the action of the motor, the bending die assembly and the main die assembly rotate around the central axis of the bending die, while the guide die assembly and the auxiliary die assembly remain stationary, thereby realizing the bending of the double-ridged waveguide. Traditional waveguide tube processing molds are often only suitable for waveguide tubes of specific sizes and shapes, and the processing efficiency is low. Utility Model Content

[0004] In view of this, an embodiment of the utility model provides a waveguide tube processing mold and a processing device thereof, so as to solve the problem that the traditional waveguide tube processing mold is often only applicable to waveguide tubes of specific sizes and shapes and has low processing efficiency.

[0005] In the first aspect, an embodiment of the utility model provides a processing mold for a waveguide tube, including a pressure mold, a forming mold and a telescopic device; a top plate is provided on the top of the pressure mold, the forming mold is arranged on the bottom plate through a support, and the telescopic device is arranged between the top plate and the bottom plate and movably connects the top plate and the bottom plate; the pressure mold includes a first layer plate, a second layer plate and a third layer plate; a plurality of positioning holes and spring holes are arranged through the corresponding positions of the pressure mold and the top plate; the forming mold is arranged at the bottom of the pressure mold through a support; the pressure mold is pressurized by contacting the top of the forming mold with springs arranged in the plurality of spring holes; a spacing distance is provided between the pressure mold and the forming mold; the forming mold includes an upper mold and a lower mold; a first forming groove and a second forming groove are respectively provided at corresponding positions of the upper mold and the lower mold; the forming mold and the support are detachably connected; the first forming groove and the second forming groove of the upper mold and the lower mold are prefabricated according to the disassembly of the forming mold.

[0006] Preferably, the telescopic device includes a telescopic column and a base; bases are provided at corresponding positions of the top plate and the bottom plate; the telescopic column is arranged between the bases on the top plate and the bottom plate; the pressure mold pressurizes and releases the forming mold by the telescopic column extending and retracting in the base.

[0007] Preferably, the first forming groove and the second forming groove are respectively provided with a first limiting groove, a second limiting groove, a third limiting groove and a fourth limiting groove at both ends; before processing, the two ends of the twist waveguide are respectively limited in position by the first limiting groove and the fourth limiting groove.

[0008] Preferably, the first and second limit plates are respectively provided at the two ends of the bottom of the third layer plate; before the pressure mold is pressurized, the first and second limit plates cover part of the upper mold inside; after the pressure mold is pressurized, the first and second limit plates cover the entire forming mold inside.

[0009] Preferably, separation grooves are provided at both opposite ends of the upper and lower molds; a separation piece is provided in the separation groove; and the separation piece separates the upper mold from the lower mold when the pressure mold releases the pressure after the pressure is applied to the forming mold.

[0010] Preferably, a spring protection cover is further provided in the spring hole; the spring is arranged in the spring hole through the spring protection cover.

[0011] Preferably, the spring and the spring protection cover extend from a spring hole provided on the pressure die to the top of the forming die.

[0012] Preferably, a positioning pin is further provided in the positioning hole of the pressure die; the positioning pin extends from the top of the pressure die to the inside of the third layer board.

[0013] Preferably, the spring is restricted in the spring hole by a bolt and the spring hole is closed.

[0014] In a second aspect, a processing device is provided, comprising a waveguide processing mold as described in any one of the above items.

[0015] The utility model provides a waveguide processing mold and a processing device thereof, which have the following beneficial effects: strong adaptability, the mold adopts a detachable forming mold design, and the first forming groove and / or the second forming groove of the forming mold can be designed to be processed separately to adapt to the processing of waveguides of different sizes and shapes; precise positioning: through the positioning pin, the first limiting member, the second limiting member, the first limiting groove, the second limiting groove, the third limiting groove and the fourth limiting groove arranged on the mold, the processing position of the waveguide on the mold is guaranteed at all times, the position accuracy of the pressure mold and the forming mold when pressurized is guaranteed, and the processing accuracy of the waveguide in the forming groove is guaranteed; automatic recovery, through the arrangement of the spring and the separation member in the spring hole, the spring of the pressure mold can automatically reset after the pressure is released, and the separation member between the upper mold and the lower mold also starts to release the pressure, so that the upper mold and the lower mold are separated, and it is easier to assemble and disassemble the processed waveguide. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following is a brief introduction to the drawings required for use in the embodiment of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the utility model.

[0017] Figure 1 The present invention is a schematic diagram of the cross-sectional structure of a waveguide processing mold;

[0018] Figure 2 is a cross-sectional schematic diagram of a waveguide processing mold from another angle;

[0019] Parts and numbers in the picture:

[0020] 11-top plate, 12-first layer plate, 13-second layer plate, 14-third layer plate, 15-spring, 16-locating pin, 17-bolt, 18-support member, 19-bottom plate; 131-first limiting plate, 132-second limiting plate; 21-upper die, 22-lower die; 211-first forming groove, 212-first limiting groove, 213-second limiting groove; 221-second forming groove, 222-third limiting groove, 223-fourth limiting groove; 231-separation groove, 232-separation member; 31-telescopic column, 32-base. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the utility model. Moreover, the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises..." do not exclude the presence of other identical elements in the process, method, article or device including the elements. If there is no conflict, the embodiments of the utility model and the various features in the embodiments can be combined with each other, all within the scope of protection of the utility model.

[0022] Example 1

[0023] See also Figure 1 and Figure 2 The embodiment of the utility model provides a processing mold for a waveguide tube, including a pressure mold, a forming mold and a telescopic device; the pressure mold is provided with a mounting hole connected to a pressure member on the outside to facilitate the installation of an external pressure member; the top plate 11 and the bottom plate 19 of the mold are also respectively provided with a "U"-shaped groove and a "V"-shaped groove for installation and positioning.

[0024] The top of the pressure mold is provided with a top plate 11, the forming mold is arranged on a bottom plate 19 through a support 18, the telescopic device is arranged between the top plate 11 and the bottom plate 19 and the top plate and the bottom plate 19 are movably connected; the telescopic device is used to withstand the pressure applied by the external pressure member and protect the safe use of the entire mold. The pressure mold includes a first layer plate 12, a second layer plate 13 and a third layer plate 14; by setting up multiple layers, the processing safety of the mold is better maintained, and the external pressure from the pressure member is better borne, so as to avoid damage to the mold and increase the strength of the mold.

[0025] The corresponding positions of the pressure mold and the top plate 11 are provided with a plurality of positioning holes and spring holes which are arranged through them; the forming mold is arranged at the bottom of the pressure mold through a support 18; the pressure mold contacts the top of the forming mold for pressurization through springs 15 arranged in the plurality of spring holes; a spacing distance is arranged between the pressure mold and the forming mold; the forming mold comprises an upper mold 21 and a lower mold 22; the corresponding positions of the upper mold 21 and the lower mold 22 are provided with a first forming groove 211 and a second forming groove 221 respectively; the inner core of the forming groove is adapted to the waveguide to be processed, and the shape, size and angle of the inner core can be designed.

[0026] The forming mold is detachably connected to the support member 18 ; the first forming groove 211 and the second forming groove 221 of the upper mold 21 and the lower mold 22 are prefabricated according to the disassembly of the forming mold.

[0027] Preferably, the telescopic device includes a telescopic column 32 and a base 32; the base 32 is provided at corresponding positions of the top plate 11 and the bottom plate 19; the telescopic column 32 is provided between the bases 32 on the top plate 11 and the bottom plate 19; the pressure mold pressurizes and releases the forming mold by the telescopic column 32 extending and retracting in the base 32; the telescopic column 32 and the base 32 play a role of adjustment and support in this mold.

[0028] Preferably, the first forming groove 211 and the second forming groove 221 are respectively provided with a first limiting groove 212, a second limiting groove 213, a third limiting groove 222 and a fourth limiting groove 223 at both ends; before processing, the two ends of the twist waveguide are respectively limited in position by the first limiting groove 212 and the fourth limiting groove 223, and the two ends of the twist waveguide are tilted before processing to prevent the two ends from being placed in the first limiting groove 212 and the fourth limiting groove 223 for the first position limitation; when external pressure begins to be applied, the upper mold 21 and the lower mold 22 begin to approach, and the twist waveguide is bent by the downward pressure of the upper mold 21; at this time, the two ends of the twist waveguide are respectively limited by the first limiting groove 212, the second limiting groove 213 and the third limiting groove 222 , the fourth limiting groove 223 performs a second position limitation, and the body of the twist waveguide is bent into a preset angle and shape; the inner shapes of the upper mold 21 and the lower mold 22 can be adaptively changed according to the angle and shape actually required and then installed to achieve adaptation to different sizes, angles and shapes; fillers must be loaded into the waveguide before bending, the main purpose of which is to ensure the size of any inner cross-section of the waveguide after bending. Currently, the main fillers used are three low-melting point alloys: bismuth, tin, and lead alloys with a melting point of 92°C; it can also be spring steel sheets, which are usually made of 65Mn cold-rolled steel strips with good elasticity and a thickness of 0.2 to 0.3 mm; or a flexible mandrel, which is also called a chain-type mandrel.

[0029] Preferably, the two ends of the bottom of the third layer plate 14 are respectively provided with a first limit plate 131 and a second limit plate 132; before the pressure die is pressurized, the first limit plate 131 and the second limit plate 132 cover part of the upper die 21 inside; after the pressure die is pressurized, the first limit plate 131 and the second limit plate 132 cover the entire forming die inside; by covering the forming die with the first limit plate 131 and the second limit plate 132, all the springs 15 arranged in the pressure die can correctly and evenly apply pressure on the forming die to achieve the purpose of forming.

[0030] Preferably, the lower die 22 and the lower die 22 are provided with separation grooves 231 at both opposite ends; a separation piece 232 is provided in the separation groove 231; when the pressure die releases the pressure after the pressure die has applied pressure to the forming die, the separation piece 232 separates the upper die 21 from the lower die 22; since it is difficult to separate the upper die 21 and the lower die after the die is processed, which makes it difficult to take out the material, a separation piece 232 is provided to assist the separation of the upper die 21 and the lower die, and the separation piece 232 should have a certain strength and reset property; such as a reset spring, etc. A spring protection cover is also provided in the spring hole; the spring 15 is provided in the spring hole through the spring protection cover; the spring 15 and the spring protection cover extend from the spring hole provided on the pressure die to the top of the forming die; the spring 15 is restricted in the spring hole by the bolt 17 and the spring hole is closed; the spring 15 is installed in the spring hole and fixed by the bolt 17. It is used to provide pressure on the mold components and realize the reaction force after the mold is subjected to pressure in order to adjust the movement of the mold or maintain the stability of the mold.

[0031] Preferably, a positioning pin 16 is further provided in the positioning hole of the pressure die; the positioning pin 16 extends from the top of the pressure die to the inside of the third layer board 14 .

[0032] Working principle: After adding filler into the waveguide, place it in the forming grooves of the upper mold 21 and the lower mold 22, and limit the two ends of the waveguide through the first limiting groove 212 and the fourth limiting groove 223 respectively; after the external pressure piece is connected, pressurize the mold, and the telescopic device protects the mold to prevent the mold from being damaged by huge pressure and ensure that the pressure is slowly applied smoothly; a number of 0 springs arranged on the forming mold press the forming mold downward evenly, and are limited by the first limiting plate 131 and the second limiting plate 132 to avoid deviation; the upper mold 21 and the lower mold 22 are closed, and the two ends of the torsion waveguide are limited by the first limiting groove 212, the second limiting groove 213 and the third limiting groove, the fourth limiting groove 223, and the torsion waveguide body is extruded and formed by the inner shape of the limiting groove; after the external pressure piece releases pressure, the mold begins to reset, and the working mold resets through the spring 15 and the separation piece 232, and the upper mold 21 and the lower mold 22 are separated.

[0033] Example 2

[0034] Second, see Figure 1 and Figure 2 , an embodiment of the utility model provides a processing device, including a processing mold for a waveguide tube as described in any of the above embodiments; based on the plastic deformation characteristics of metal materials. When the twist waveguide is subjected to external force, plastic deformation will occur, and the bending mold bends the twist waveguide into a desired shape by applying appropriate force and shape. Usually the lower mold 22 is usually fixed on the machine tool, while the upper mold 21 can be moved. The twist waveguide is placed between the two molds and the position is adjusted according to the required bending angle and shape. Then, force is applied to move the upper mold 21 downward, so that the twist waveguide is bent between the two molds; by adjusting the size, shape and angle of the mold forming groove, it can quickly adapt to waveguides of different sizes and shapes, thereby improving processing efficiency.

[0035] Example 3

[0036] See also Figure 1 and Figure 2The embodiment of the utility model provides a waveguide tube processing mold and a processing device thereof. The waveguide tube processing mold and the processing device thereof provided by the utility model have the following beneficial effects: strong adaptability, the mold adopts a detachable forming mold design, and the first forming groove 211 and / or the second forming groove 221 of the forming mold can be processed separately to adapt to the processing of waveguide tubes of different sizes and shapes; precise positioning, through the positioning pin 16, the first limiting member 0, the second limiting member 0, the first limiting groove 212, and the second limiting groove 211 provided on the mold 3. The third limiting groove 222 and the fourth limiting groove 223 have multiple positioning and limiting parts, which ensure the processing position of the waveguide on the mold at all times, ensure the position accuracy of the pressure mold and the forming mold when pressurized, and ensure the processing accuracy of the waveguide in the forming groove; automatic recovery, through the arrangement of the spring 15 and the separating part in the spring hole, the spring 15 of the pressure mold can automatically reset after the pressure is released, and at the same time, the separating part 232 between the upper mold 21 and the lower mold 22 also starts to release pressure, so that the upper mold 21 and the lower mold 22 are separated, making it easier to assemble and disassemble the processed waveguide.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A waveguide processing mold, characterized in that: It includes a pressure die, a forming die and a telescopic device; A top plate (11) is provided on the top of the pressure die; the forming die is arranged on a bottom plate (19) via a support member (18); the telescopic device is arranged between the top plate (11) and the bottom plate (19) and movably connects the top plate (11) and the bottom plate (19); the pressure die comprises a first layer plate (12), a second layer plate (13) and a third layer plate (14); a plurality of positioning holes and spring holes are provided at corresponding positions of the pressure die and the top plate (11); The forming die is arranged at the bottom of the pressure die through a support member (18); the pressure die contacts the top of the forming die for pressure application through springs (15) arranged in a plurality of spring holes; a spacing distance is provided between the pressure die and the forming die; the forming die comprises an upper die (21) and a lower die (22); corresponding positions of the upper die (21) and the lower die (22) are respectively provided with a first forming groove (211) and a second forming groove (221); the forming die and the support member (18) are detachably connected; the first forming groove (211) and the second forming groove (221) of the upper die (21) and the lower die (22) are prefabricated according to the disassembly of the forming die.

2. A waveguide processing mold according to claim 1, characterized in that: The telescopic device comprises a telescopic column (31) and a base (32); the bases (32) are provided at corresponding positions of the top plate (11) and the bottom plate (19); the telescopic column (31) is provided between the bases (32) on the top plate (11) and the bottom plate (19); and the pressure mold applies pressure to and releases pressure on the forming mold by the telescopic column extending and retracting in the base.

3. A waveguide processing mold according to claim 1, characterized in that: A first limiting groove (212), a second limiting groove (213), a third limiting groove (222), and a fourth limiting groove (223) are respectively provided at both ends of the first forming groove (211) and the second forming groove (221); before processing, the two ends of the twist waveguide are respectively position-limited by the first limiting groove (212) and the fourth limiting groove (223).

4. A waveguide processing mold according to claim 1, characterized in that: A first limit plate (131) and a second limit plate (132) are respectively provided at both ends of the bottom of the third layer plate (14); before the pressure die is pressurized, the first limit plate (131) and the second limit plate (132) partially cover the upper die (21) inside; after the pressure die is pressurized, the first limit plate (131) and the second limit plate (132) completely cover the forming die inside.

5. A waveguide processing mold according to claim 1, characterized in that: The upper mold (21) and the lower mold (22) are both provided with separation grooves (231) at opposite ends; a separation piece (232) is provided in the separation groove (231); and when the pressure mold releases the pressure after applying pressure to the forming mold, the separation piece (232) separates the upper mold (21) from the lower mold (22).

6. A waveguide processing mold according to claim 1, characterized in that: A spring protection cover is also provided in the spring hole; the spring (15) is arranged in the spring hole through the spring protection cover.

7. A waveguide processing mold according to claim 6, characterized in that: The spring (15) and the spring protection cover extend from a spring hole provided on the pressure die to the top of the forming die.

8. A waveguide processing mold according to claim 1, characterized in that: A positioning pin (16) is also provided in the positioning hole of the pressure die; the positioning pin (16) extends from the top of the pressure die to the inside of the third layer board (14).

9. A waveguide processing mold according to claim 6, characterized in that: The spring (15) is restricted in the spring hole by a bolt (17) and the spring hole is closed.

10. A processing device, characterized in that: A processing mold for a waveguide tube as claimed in any one of claims 1 to 9.

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