CN113172298B - Process device for brazing and positioning three-type rectangular waveguide tube and flange plate - Google Patents
Process device for brazing and positioning three-type rectangular waveguide tube and flange plate Download PDFInfo
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- CN113172298B CN113172298B CN202110486472.2A CN202110486472A CN113172298B CN 113172298 B CN113172298 B CN 113172298B CN 202110486472 A CN202110486472 A CN 202110486472A CN 113172298 B CN113172298 B CN 113172298B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
- B23K3/087—Soldering or brazing jigs, fixtures or clamping means
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Abstract
The invention discloses a process device and a method for brazing and positioning a three-type rectangular waveguide tube and a flange plate, wherein the process device comprises a main frame, an auxiliary frame, a positioning slide block, a positioning shaft screw, a release screw, a locking screw rod and a pull rod, wherein after assembly, a guide groove positioning mechanism is formed by rectangular guide grooves of the main frame and the auxiliary frame; the positioning step of the positioning slide block is limited in the guide groove positioning mechanism, the positioning slide block is limited to slide along the horizontal direction of the guide groove positioning mechanism, and the positioning boss of the positioning slide block is matched with the positioning boss of the main frame for horizontally placing and positioning the flange plate during brazing so as to determine the relative position of the waveguide tube and the flange plate; one end of the locking screw penetrates through the side wall of the subframe to be connected with the positioning slide block, and the other end of the locking screw is connected with the pull rod and used for moving the positioning slide block, so that the size of a cavity formed by the main frame, the subframe and the positioning slide block is matched with the size of the waveguide, and the positioning and clamping of the waveguide are realized. The invention has the advantages of small volume, simple and convenient operation, accurate positioning, good welding consistency and repeated use.
Description
Technical Field
The invention belongs to a brazing process technology, and particularly relates to a process device for brazing and positioning a three-type rectangular waveguide tube and a flange plate.
Background
The waveguide tube is a hollow metal conduit with a smooth inner wall or a tube with metal coating inside, is used for transmitting ultrahigh frequency electromagnetic waves, and is mainly applied to the fields of military industry, communication, satellite ground stations, microwave measurement and the like. By which the pulse signal can be transmitted to the destination with extremely small loss. The waveguide material is required to have high conductivity, and generally adopts copper and copper alloy, and can also adopt aluminum alloy or other metal materials. The size of the inner diameter of the waveguide varies depending on the wavelength of the transmitted signal, and the main cross-sectional shapes include rectangular, circular, and the like. According to the practical application, the waveguide tubes have many shapes and can be divided into straight waveguides, E-shaped waveguides, H-shaped waveguides, twisted waveguides, gradient waveguides, special-shaped waveguides and the like.
The wave guide tubes are connected with each other through flange plates, and a channel capable of transmitting microwave signals is formed after assembly. The waveguide tube is generally a national standard section bar and has standard inner cavity and external dimension precision requirements, and the flange plate for connection is separately machined and welded on the waveguide tube through silver brazing, so that the connectable waveguide tube required by a product is finally formed. The requirement on the length size precision of the waveguide tube is high, so that the positioning is required to be relatively accurate when the flange plate is welded. At present, two methods, namely a groove forming method and a spigot milling method, are mainly adopted for brazing and positioning the waveguide tube and the flange plate. The beveling method is mainly characterized in that a chisel is used, four notches are formed in four corners of an appointed position of the rectangular waveguide tube respectively, four bosses formed by material extrusion during notching are utilized, a flange plate is positioned and then welded, the operation is convenient, the operation difference is large by means of personal skills, the four bosses are poor in consistency, the shaping workload of the waveguide inner cavity and the appearance after welding is large, and time and labor are wasted. The spigot milling method is mainly characterized in that after the pipe orifice of the waveguide pipe is shaped, a steel core is inserted, and then the wall thickness of the periphery of the designated position of the waveguide pipe is machined through a machine tool to form a step, so that the flange plate is positioned, the precision is high, the consistency is good, but the waveguide pipe is generally large in quantity, time-consuming and labor-consuming, and the machining cost is high.
Disclosure of Invention
The invention aims to provide a process device for brazing and positioning a three-type rectangular waveguide tube and a flange plate.
The technical scheme for realizing the purpose of the invention is as follows: the utility model provides a process units that is used for three type rectangular waveguide and ring flange to braze and fixes a position, includes main frame, subframe, location slider, location axle screw, the screw is not taken off in the pine, locking screw and pull rod, wherein:
the main frame is of a U-shaped structure and comprises a rectangular guide groove at the position 1 and two positioning bosses;
the auxiliary frame is of a linear structure and comprises a rectangular guide groove at the position 1, one end of the auxiliary frame is connected with one end of the U-shaped structure through a positioning shaft screw during assembly, the other end of the auxiliary frame is connected with the other end of the U-shaped structure through a release screw, and the rectangular guide groove of the main frame and the rectangular guide groove in the auxiliary frame form a group of guide groove positioning mechanisms;
the positioning slide block is of a convex structure and comprises a positioning boss and two positioning steps, the positioning steps are limited in a guide groove positioning mechanism formed by assembling a main frame and an auxiliary frame, the positioning slide block is limited to slide along the horizontal direction of the rectangular guide groove positioning mechanism, the size of a cavity formed by the main frame, the auxiliary frame and the positioning slide block is matched with the size of a waveguide, the positioning and clamping of the waveguide tube are realized, the positioning boss of the positioning slide block is matched with the positioning boss of the main frame for horizontally placing and positioning a flange plate during brazing, and the relative position of the waveguide tube and the flange plate is determined;
the locking screw penetrates through a threaded hole in the side wall of the auxiliary frame and is tightly pushed against the positioning sliding block through screwing; the pull rod penetrates through the unthreaded hole in the side wall of the subframe to be in threaded connection with the positioning sliding block and is used for pushing and pulling the positioning sliding block.
Furthermore, gaps are arranged on the main frame and/or the positioning slide block, so that the inner cavity forms shapes with different specifications and sizes after assembly, and the rectangular waveguide tubes of different types can be positioned and clamped.
Furthermore, the main frame and the auxiliary frame are provided with positioning steps, so that the precise matching and positioning of the main frame and the auxiliary frame are realized.
Furthermore, the positioning boss of the main frame and the positioning boss of the positioning slider are arranged oppositely.
A method for brazing and positioning a three-type rectangular waveguide tube and a flange plate is based on any process device for brazing and positioning the three-type rectangular waveguide tube and the flange plate, and the method comprises the following specific steps:
and 6, loosening the non-release screw, opening the auxiliary frame along the positioning shaft screw in a rotating mode, taking out the welded waveguide tube, and connecting the waveguide tube and the flange plate into a whole.
Compared with the prior art, the invention has the following remarkable advantages: (1) the invention has small overall dimension, light weight, low manufacturing cost and convenient and quick use and operation; (2) the positioning method has wide applicability, is suitable for positioning the three rectangular waveguide tubes of BJ70, BJ84 and BJ100 before brazing with the flange plate, is suitable for rectangular waveguide tubes with any shape (straight, bent, twisted waveguide, special-shaped and the like) and is suitable for flange plates with any structural forms; (3) the invention has accurate positioning and can effectively ensure the consistency of welding; (4) the invention is convenient to disassemble and can be repeatedly used.
Drawings
FIG. 1 is a schematic three-dimensional structure of the device of the present invention.
FIG. 2 is a schematic plan view of the apparatus of the present invention.
FIG. 3 is a schematic structural view of a main frame of the present invention, wherein (a) is a three-dimensional model, (b) is a bottom view, (c) is a partial sectional view, (d) is a partial sectional view, (e) is a front view, and (f) is a partial sectional view.
Fig. 4 is a schematic structural view of a subframe according to the present invention, wherein (a) is a partial sectional view, (b) is a front view, (c) is a partial sectional view, (d) is a top view, and (e) is a three-dimensional model view.
Fig. 5 is a schematic structural view of a positioning slider according to the present invention, wherein (a) is a front view, (b) is a top view, and (c) is a three-dimensional model diagram.
FIG. 6 is a schematic view of the positioning shaft screw of the present invention.
FIG. 7 is a schematic diagram of the process of step 2 in the present invention.
FIG. 8 is a schematic diagram of the process of step 3 in the present invention.
FIG. 9 is a schematic diagram of the process of step 4 in the present invention.
FIG. 10 is a schematic diagram of the process of step 6 in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
As shown in fig. 1-2, the present invention comprises a main frame 1, a sub-frame 2, a positioning slider 3, a positioning shaft screw 4, a release screw 5, a locking screw 6 and a pull rod 7, wherein:
the main frame 1 is of a U-shaped structure and comprises a rectangular guide groove at the position 1 and two positioning bosses; the auxiliary frame 2 is of a linear structure and comprises a rectangular guide groove at the position 1, one end of the auxiliary frame is connected with one end of the U-shaped structure through a positioning shaft screw 4 during assembly, the other end of the auxiliary frame is connected with the other end of the U-shaped structure through a release screw 5, and the rectangular guide groove of the main frame 1 and the rectangular guide groove in the auxiliary frame 2 form a group of guide groove positioning mechanisms; the positioning slide block 3 is of a convex structure and comprises a positioning boss and two positioning steps, the positioning steps are limited in a guide groove positioning mechanism formed by assembling the main frame 1 and the subframe 2, the positioning slide block 3 is limited to slide along the horizontal direction of the rectangular guide groove positioning mechanism, the size of a cavity formed by the main frame 1, the subframe 2 and the positioning slide block 3 is matched with the size of a waveguide to be consistent, the positioning and clamping of the waveguide are realized, the positioning boss of the positioning slide block 3 is matched with the positioning boss of the main frame 1 to be used for horizontally placing and positioning a flange plate during brazing, and the relative position of the waveguide and the flange plate is determined; the pull rod 7 penetrates through the unthreaded hole in the side wall of the auxiliary frame to be in locking connection with the positioning slide block 3 and is used for quickly pushing and pulling the positioning slide block 3; the locking screw 6 penetrates through the side wall of the auxiliary frame, and the locking screw 6 is screwed on the side wall 2 of the auxiliary frame, so that the screw is tightly pushed against the sliding block.
As a specific implementation mode, the main frame 1 comprises 1 rectangular guide groove, 3 groups of combination holes (pin holes, unthreaded holes and threaded holes), two positioning bosses, 2 notches and 1 lightening hole phi 8 mm. As shown in fig. 3(a), the bottom surface is a reference surface for all dimensions; FIG. 3(b) shows a rectangular guide groove, size
A combined hole comprises a counter bore phi of 5mm and a threaded hole M4-7H, wherein the depth of the counter bore is 2 mm; FIG. 3(c) is a combination hole including a pin hole
And threaded hole M3-7H; two positioning bosses in the position of figure 3(d), the height dimension is 20mm, one notch, the dimension is 1 +/-0.02 mm and
FIG. 3(e) is a drawing in which the hole diameter phi is 8mm, the hole is a relief hole, the inner cavity step has the size of 32mm and 38.6mm, and the outer shape is chamfered by 2 × R3 mm; a notch in FIG. 3(f), having a size of 1. + -. 0.02mm and
one phi 4.5mm hole and two M4-7H threaded holes.
As a specific embodiment, the sub-frame 2 comprises 3 mounting and positioning bosses, 1 rectangular guide groove, a group of combination holes and a pin hole. As shown in fig. 4(e), two ends have mounting and positioning steps and hole sites in different directions; FIG. 4(a) shows a combination hole, which comprises a counter bore diameter of 5mm and a depth of 6mm and a threaded hole M4-7H, and a positioning boss is arranged at one position, and the size of the combination hole is 1 +/-0.02 mm
The first rectangle in FIG. 4(b)Shape and size of guide groove
A positioning boss is arranged at one position, and the size of the positioning boss is 5.5 +/-0.02 mm; FIG. 4(c) shows a positioning boss with a size of 1 + -0.02 mm
FIG. 4(d) is a small hole
As a specific implementation manner, the positioning sliding block 3 includes 1 positioning boss, 1 notch, and 1 threaded hole. As shown in fig. 5 (c); two end steps, size in FIG. 5(a)
The surface roughness is 1.6, the chamfer angle is C0.5, a positioning boss is arranged at one position, the size is 20mm, and a threaded hole M4-7H is 7 deep; a gap in FIG. 5(b), size
One step, the external dimension
As a specific embodiment, the positioning shaft screw 4 is a special screw, and the positioning shaft part is shown in figure 6 and is sized
0.01mm of cylindricity, a threaded portion M3-6g and a chamfer C0.5.
As a specific embodiment, the release screw 5 is a release screw of GB/T839-1988 model, and the specification is M4 multiplied by 16.
As a specific implementation mode, the locking screw 6 is a screw of GB/T822-2000 type, and the specification is M4 multiplied by 25.
As a specific embodiment, the pull rod 7 is a screw of GB/T822-2000 type, and the specification is M4 multiplied by 35.
In the device, after the main frame 1, the subframe 2 and the positioning slide block 3 are assembled and formed, bosses at three positions are arranged for placing the flange plate, and the waveguide tube is moved and adjusted along the inner cavity of the device, so that the required relative position between the flange plate and the waveguide tube can be obtained, and the subsequent operation is carried out. After the main frame 1, the subframe 2 and the positioning slide block 3 are assembled and formed, the inner cavities form three specifications of notches for three types of waveguide tubes, and the three types of notches are suitable for positioning positions of three specifications (BJ100, BJ84 and BJ70) of rectangular waveguide tubes (shape is not limited) and flange plates (structural form of flange plates is not limited) before brazing. With reference to fig. 7 to 10, the application process of the present invention is described in detail, which includes the following steps:
and 6, loosening the non-release screws 5, opening the auxiliary frame 2 by rotating along the positioning shaft screws 4, and taking out the welded waveguide tube (at the moment, the waveguide tube and the flange are connected into a whole and cannot pass through the waveguide tube and the flange plate).
Alternately screwing two locking screws by using a screwdriver until the waveguide tube is pre-tightened; then the flange plate to be brazed penetrates through the waveguide tube and is placed on 3 positioning bosses on the main frame; then carrying out subsequent brazing process; after the brazing is finished, loosening the non-detachable screws, rotating and opening the auxiliary frame, and taking out the welded waveguide tube from the side surface; and thus can be used repeatedly.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (4)
1. The utility model provides a process units that is used for three type rectangular waveguide tubes and ring flange to braze the location, characterized in that, includes main frame (1), subframe (2), location slider (3), location axle screw (4), not take off screw (5), locking screw (6) and pull rod (7), wherein:
the main frame (1) is of a U-shaped structure and comprises a rectangular guide groove at the position 1 and two positioning bosses;
the auxiliary frame (2) is of a linear structure and comprises a rectangular guide groove at the position 1, one end of the auxiliary frame (2) is connected with one end of the U-shaped structure through a positioning shaft screw (4) during assembly, the other end of the auxiliary frame is connected with the other end of the U-shaped structure through a release screw (5), and the rectangular guide groove of the main frame (1) and the rectangular guide groove in the auxiliary frame (2) form a group of guide groove positioning mechanisms;
the positioning slide block (3) is of a convex structure and comprises a positioning boss and two positioning steps, the positioning steps are limited in a guide groove positioning mechanism formed by assembling the main frame (1) and the subframe (2), the positioning slide block (3) is limited to slide along the horizontal direction of the rectangular guide groove positioning mechanism, the size of a cavity formed by the main frame (1), the subframe (2) and the positioning slide block (3) is matched with the size of a waveguide to be consistent, the positioning and clamping of the waveguide are realized, the positioning boss of the positioning slide block (3) is matched with the positioning boss of the main frame (1) for horizontal placement and positioning of a flange plate during brazing, and the relative position of the waveguide tube and the flange plate is determined;
the locking screw (6) penetrates through a threaded hole in the side wall of the auxiliary frame (2), and the screw is tightly pushed towards the positioning sliding block (3) through screwing; the pull rod (7) penetrates through the unthreaded hole in the side wall of the auxiliary frame (2) to be in threaded connection with the positioning sliding block (3) and is used for pushing and pulling the positioning sliding block (3);
based on the process device for brazing and positioning the three-type rectangular waveguide tube and the flange plate, the brazing and positioning of the three-type rectangular waveguide tube and the flange plate are realized, and the specific process comprises the following steps:
step 1, passing a part to be welded of a waveguide tube to be brazed through a process device, and positioning;
step 2, moving the positioning slide block (3) by using a pull rod (7), enabling the positioning slide block (3) to horizontally slide to be close to the waveguide tube wall along rectangular guide grooves in the main frame (1) and the auxiliary frame (2), tightening the two locking screw rods (6) one by one alternately, pre-tightening preliminarily, and fixing the process device on the waveguide tube;
step 3, the flange plate to be brazed penetrates through the waveguide tube and is horizontally placed on the positioning bosses of the main frame (1) and the positioning slide block (3);
step 4, loosening the two locking screws (6), adjusting the welding positions of the flange plate and the waveguide tube until the required size is reached, and fastening the two locking screws (6);
step 5, brazing the waveguide tube and the flange plate;
and 6, loosening the non-release screw (5), opening the subframe (2) in a rotating mode along the positioning shaft screw (4), taking out the welded waveguide tube, and connecting the waveguide tube and the flange plate into a whole.
2. The process device for brazing and positioning the three-type rectangular waveguide tube and the flange plate according to claim 1, wherein notches are formed in the main frame (1) and/or the positioning slide block (3), so that the assembled inner cavities form shapes with different specifications and sizes, and the rectangular waveguide tubes of different types can be positioned and clamped.
3. The process device for brazing and positioning the three-section rectangular waveguide tube and the flange plate according to claim 1, wherein positioning steps are arranged on the main frame (1) and the auxiliary frame (2) to realize precise matching and positioning of the main frame and the auxiliary frame.
4. The process device for brazing and positioning the three-section rectangular waveguide tube and the flange plate according to claim 1, wherein the positioning boss of the main frame (1) and the positioning boss of the positioning slide block (3) are oppositely arranged.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110486472.2A CN113172298B (en) | 2021-04-30 | 2021-04-30 | Process device for brazing and positioning three-type rectangular waveguide tube and flange plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110486472.2A CN113172298B (en) | 2021-04-30 | 2021-04-30 | Process device for brazing and positioning three-type rectangular waveguide tube and flange plate |
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| Publication Number | Publication Date |
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| CN113172298A CN113172298A (en) | 2021-07-27 |
| CN113172298B true CN113172298B (en) | 2022-09-27 |
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| CN202110486472.2A Active CN113172298B (en) | 2021-04-30 | 2021-04-30 | Process device for brazing and positioning three-type rectangular waveguide tube and flange plate |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114932437B (en) * | 2022-07-27 | 2022-10-14 | 成都西夏科技发展有限公司 | Terahertz waveguide positioning tool |
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| CN101362241A (en) * | 2008-07-04 | 2009-02-11 | 天津大学 | Solder reflow sample position limiter |
| CN203918163U (en) * | 2013-09-30 | 2014-11-05 | 湖北三江航天红林探控有限公司 | Double-wedge coordinates guiding mechanism |
| CN204893144U (en) * | 2015-09-16 | 2015-12-23 | 成都四威高科技产业园有限公司 | Waveguide bend - flange connects flexible frock of induction brazing |
| CN111975163A (en) * | 2020-09-09 | 2020-11-24 | 天津航天机电设备研究所 | Circumferential turntable positioning tool for waveguide brazing |
| CN112652874A (en) * | 2020-09-24 | 2021-04-13 | 南京驰韵科技发展有限公司 | Special equipment for bending and twisting K-band-terahertz-band rectangular waveguide |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109693012B (en) * | 2017-10-24 | 2020-12-18 | 泰科电子(上海)有限公司 | Positioning device |
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2021
- 2021-04-30 CN CN202110486472.2A patent/CN113172298B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362241A (en) * | 2008-07-04 | 2009-02-11 | 天津大学 | Solder reflow sample position limiter |
| CN203918163U (en) * | 2013-09-30 | 2014-11-05 | 湖北三江航天红林探控有限公司 | Double-wedge coordinates guiding mechanism |
| CN204893144U (en) * | 2015-09-16 | 2015-12-23 | 成都四威高科技产业园有限公司 | Waveguide bend - flange connects flexible frock of induction brazing |
| CN111975163A (en) * | 2020-09-09 | 2020-11-24 | 天津航天机电设备研究所 | Circumferential turntable positioning tool for waveguide brazing |
| CN112652874A (en) * | 2020-09-24 | 2021-04-13 | 南京驰韵科技发展有限公司 | Special equipment for bending and twisting K-band-terahertz-band rectangular waveguide |
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