Positioning tool for welding cavity phase shifter

Abstract

The utility model relates to the technical field of welding of phase shifters, in particular to a positioning tool for welding of a cavity phase shifter, which comprises a cavity limiting tray and a support frame. A positioning clamping groove for loading a phase shifter assembly to be welded is formed in the upper surface of the cavity limiting tray; the left end and the right end of the upper surface of the cavity limiting tray are each provided with a groove, supporting tenons are arranged at the corresponding positions of the bottom of the supporting frame, and the supporting frame and the cavity limiting tray are fixedly connected through the cooperation of the supporting tenons and the grooves. A plurality of cable clamps are installed on one side face of the supporting frame, and the cable clamps are used for clamping and positioning feed cables to be welded. The phase shifter cavity and the feed cable are clamped and positioned through the positioning tool, automatic welding machining of different welding spot positions can be achieved in cooperation with welding equipment, controllability and consistency of welding of the phase shifter cavity, the feed cable and a circuit can be guaranteed, the product performance is improved, meanwhile, the machining efficiency is improved, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of phase shifter welding, and particularly to a positioning tooling for welding and assembling a cavity phase shifter. Background Technique

[0002] In the manufacturing process of mobile communication base station antennas, the structure of its cavity phase shifter mainly realizes the electrical connection of signal transmission through the soldering of multiple components such as pultruded cavities, network circuits, and feeder cables. The welding process has high requirements, and the welding quality of each component directly affects the performance indicators of the product.

[0003] Currently, in the antenna industry, the welding method between the phase shifter and the cable is mostly manual operation. Usually, the operator holds the feeder cable by hand while adding solder for welding. The disadvantages are obvious. The technical levels of welding personnel vary, and it is impossible to accurately control the position between the feeder cable and the phase shifter cavity, the welding time, the amount of solder, etc. Once the phase shifter cavity and the feeder cable are misaligned or skewed, it is easy to have solder leakage inside the cavity, which will lead to product rejection, or problems such as poor S-parameters of the tested product requiring debugging and poor PIM requiring repair.

[0004] Based on this, it is necessary to provide a positioning tooling for welding and assembling a cavity phase shifter with high efficiency and good welding consistency to meet the actual production requirements. Content of the Utility Model

[0005] The purpose of the utility model is to propose a positioning tooling for welding and assembling a cavity phase shifter, which can assist the welding equipment to complete the welding and assembling work of the cavity phase shifter efficiently and with high quality, and has a good use effect.

[0006] To achieve the purpose of the utility model, the following technical solutions are adopted:

[0007] A positioning tooling for welding and assembling a cavity phase shifter, the positioning tooling includes a cavity limiting tray and a support frame; a positioning slot for loading the phase shifter assembly to be welded and assembled is provided on the upper surface of the cavity limiting tray; a groove is respectively provided at the left and right ends of the upper surface of the cavity limiting tray, and a support tenon is provided at the corresponding position at the bottom of the support frame. The support frame and the cavity limiting tray are fixedly connected through the cooperation of the support tenon and the groove; a plurality of cable clamps are installed on one side surface of the support frame, and the cable clamps are used for clamping and positioning the feeder cable to be welded and assembled.

[0008] Further improvement lies in that the support frame includes two first support rods, and support tenons for cooperating with the grooves are respectively provided at the bottoms of the two first support rods.

[0009] Further improvements are as follows. There are two cross beams connected at intervals between the two first support rods, and a second support rod is connected between the two cross beams.

[0010] Further improvements are as follows. On one side of each of the first support rod, the cross beam, and the second support rod, a number of clip fixing grooves are provided at intervals. The clip fixing grooves are used for installing the cable clips.

[0011] Further improvements are as follows. A limiting block is installed on the upper cross beam.

[0012] Further improvements are as follows. One side surface of the limiting block is coplanar with one side surface of the cavity limiting tray, and the cable clip does not protrude from this coplanar surface.

[0013] Further improvements are as follows. First fixing grooves are respectively provided on the two first support rods, and cross beam tenons are provided at both ends of the cross beam for fixed connection in cooperation with the first fixing grooves.

[0014] Further improvements are as follows. Second fixing grooves are respectively provided on the two cross beams, and second tenons are provided at both ends of the second support rod for fixed connection in cooperation with the second fixing grooves.

[0015] Further improvements are as follows. The positioning card slot extends along the length direction of the cavity limiting tray, and one end of the positioning card slot penetrates the right side of the cavity limiting tray, and the other end is a blind end.

[0016] Further improvements are as follows. The clip fixing groove is a stepped through groove.

[0017] The beneficial effects of the present utility model are as follows:

[0018] By using the positioning tooling to clamp and position the phase shifter cavity and the feeder cable, the present utility model can cooperate with the welding equipment to realize automatic welding processing at different solder joint positions. At the same time, it can also ensure the controllability and consistency of the welding of the phase shifter cavity with the feeder cable and the circuit. While improving the product performance, it also improves the processing efficiency and reduces the labor cost. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the cavity phase shifter assembly in the present utility model;

[0020] Figure 2 It is a schematic structural diagram of the cavity limiting tray in the present utility model;

[0021] Figure 3 It is a schematic structural diagram of the first support rod in the present utility model;

[0022] Figure 4 It is a schematic structural diagram of the cross beam in the present utility model;

[0023] Figure 5 It is a schematic structural diagram of the second support rod in the present utility model;

[0024] Figure 6 It is a schematic structural diagram of the limit block in the present utility model;

[0025] Figure 7 It is a schematic overall structural diagram of a positioning tooling for welding and assembling a cavity phase shifter in the present utility model;

[0026] Figure 8 It is a schematic assembly structural diagram between the positioning tooling and the cavity phase shifter assembly in the present utility model.

[0027] Explanation of reference numerals:

[0028] 00, tin ring; 10, cable clip; 11, phase shifter cavity; 12, phase shifter circuit; 13, feeder cable; 20, cavity limit tray; 101, clip fixing groove; 201, positioning card slot; 202, groove; 30, first support rod; 302, first fixing groove; 303, support tenon; 40, cross beam; 402, cross beam tenon; 403, second fixing groove; 50, second support rod; 501, second tenon; 60, limit block; 601, fixing boss. Detailed implementation manners

[0029] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners. It should be understood that the specific implementation manners described herein are only used to explain the present utility model and do not limit the protection scope of the present utility model.

[0030] It should be noted that when an element is referred to as being "fixed to", "arranged on", "fixedly arranged on" or "mounted on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. Further, when an element is considered to be "drivably connected" to another element, the two can achieve power transmission, and its specific implementation manner can be realized by using the existing technology and will not be repeated here. When an element is perpendicular or approximately perpendicular to another element, it means that the ideal state of the two is perpendicular, but due to the influence of manufacturing and assembly, there may be a certain vertical error. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are for the purpose of describing specific embodiments only and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] The "first" and "second" involved in this utility model do not represent specific quantities and sequences, but are only used for name distinction.

[0033] Please refer to the attached Figure 1 - attached Figure 8 , an embodiment of this utility model provides a positioning tooling for soldering and assembling a cavity phase shifter, which is applicable to the processing occasions of batch multi-step welding and assembling positioning of cavity phase shifters or similar structural components. In this embodiment, the positioning tooling is used to clamp and position multiple sets of components (including a phase shifter cavity 11, a phase shifter circuit 12, a feeder cable 13, and a tin ring 00) that make up the cavity phase shifter. Multiple sets of welding groove through holes are provided on the phase shifter cavity 11; rectangular pads are provided on the phase shifter circuit 12; the feeder cable 13 is sequentially sleeved into the tin ring 00 and then inserted into the welding groove through holes of the phase shifter cavity 11 to form multiple sets of inner and outer conductor solder joints with the phase shifter circuit 12. Then, the welding device can be used to automatically weld the multiple sets of solder joint positions formed by the cooperation of the phase shifter cavity 11, the phase shifter circuit 12, the feeder cable 13, and the tin ring 00 on the positioning tooling in sequence. Even a single-component cable cavity can also be automatically soldered and assembled through the cooperation of the positioning tooling and the welding device. As Figure 8 shown is a schematic diagram of the composition of 8 groups of feeder cables 13. In other embodiments, the number of solder joints formed by the feeder cable 13 and the cavity phase shifter components is not limited to this, and those skilled in the art can select according to actual needs.

[0034] Specifically, the positioning tooling includes a cavity limiting tray 20 and a support frame; a positioning slot 201 for loading the phase shifter components to be soldered and assembled is provided on the upper surface of the cavity limiting tray 20; a groove 202 is respectively provided at the left and right ends of the upper surface of the cavity limiting tray 20, and a support tenon 303 is provided at the corresponding position at the bottom of the support frame. The support frame and the cavity limiting tray 20 are fixedly connected through the cooperation of the support tenon 303 and the groove 202; a plurality of cable clamps 10 are installed on one side surface of the support frame, and the cable clamps 10 are used to clamp and position the feeder cable 13 to be soldered and assembled.

[0035] The cavity limit tray 20 is integrally in a rectangular plate structure and is made of non-metallic material, mainly used to slow down heat conduction during operation. The depth of the positioning card slot 201 is 5 mm and the width is 15.5 mm, which is used for the phase shifter component to be welded to move freely left and right in the positioning card slot 201 and for blind-end positioning.

[0036] It can be understood that the cavity limit tray 20, as the basic part of the positioning tooling, has a positioning card slot 201 with a specific shape on its upper surface for fixing the phase shifter component to be welded. In addition, there are grooves 202 at both ends of the cavity limit tray 20 for cooperation with the support frame. The principle is as follows: Place the phase shifter component to be welded in the positioning card slot 201 of the cavity limit tray 20 to ensure the accurate position of the phase shifter component, while the feeder cable 13 is fixed in the cable clip 10 to prevent movement or deformation during welding, so that the automatic welding equipment can perform automatic welding processing on the positions of multiple solder joints formed by the phase shifter cavity 11, the circuit and the feeder cable 13. Through the precise positioning card slot 201 and the cable clip 10, the positions of the phase shifter component and the feeder cable 13 can be ensured to be accurate during welding, reducing the errors caused by manual positioning, accelerating the production speed, and at the same time helping to reduce the product unqualified problems caused by position deviation.

[0037] In this embodiment, the support frame includes two first support rods 30, and support tenons 303 for cooperating and connecting with the grooves 202 are respectively arranged at the bottoms of the two first support rods 30. The first support rod 30 is in a long strip plate structure.

[0038] It can be understood that support tenons 303 are arranged at the bottom of each first support rod 30, and the support tenons 303 are used to match the grooves 202 at both ends of the cavity limit tray 20 to form a firm connection.

[0039] In this embodiment, two cross beams 40 are connected at intervals between the two first support rods 30, and a second support rod 50 is connected between the two cross beams 40. The cross beam 40 is in a long strip plate structure, and the second support rod 50 is also in a plate structure.

[0040] The first support rod 30, the cross beam 40, and the second support rod 50 are combined to form a support frame in a frame structure.

[0041] In this embodiment, a plurality of clip fixing grooves 101 are spaced apart on one side surface of the first support rod 30, the cross beam 40, and the second support rod 50, and the clip fixing grooves 101 are used to install the cable clip 10. The clip fixing groove 101 is preferably a stepped through groove.

[0042] It can be understood that by providing the clamping fixing grooves 101 on one side of the first support rod 30, the cross beam 40 and the second support rod 50 for installing the cable clamp 10, the flexibility and adaptability of the installation of the cable clamp 10 are improved. The position of the cable clamp 10 can be flexibly adjusted according to the specific layout of the feeder cable 13 to adapt to different assembly requirements. Moreover, the design of the entire positioning tooling is further optimized to make it more efficient and practical.

[0043] In this embodiment, a limiting block 60 is installed on the cross beam 40 located above. The limiting block 60 is a rectangular parallelepiped block and is installed at the central position of the cross beam 40. A fixing boss 601 is provided on the limiting block 60, and the fixing boss 601 can cooperate with the clamping fixing groove 101 for the installation and fixation of the limiting block 60.

[0044] One side surface of the limiting block 60 is coplanar with one side surface of the cavity limiting tray 20, that is, the edge of the limiting block 60 and the edge of the cavity limiting tray 20 are in the same plane, and the cable clamp 10 does not protrude from this coplanar surface.

[0045] In this embodiment, first fixing grooves 302 are respectively provided on the two first support rods 30, and cross beam tenons 402 are provided at both ends of the cross beam 40 for cooperating with the first fixing grooves 302 for fixed connection.

[0046] In this embodiment, second fixing grooves 403 are respectively provided on the two cross beams 40, and second tenons 501 are provided at both ends of the second support rod 50 for cooperating with the second fixing grooves 403 for fixed connection.

[0047] It can be understood that through the mating connection between the cross beam tenon 402 and the first fixing groove 302, the connection between the cross beam 40 and the first support rod 30 can be ensured to be more stable, improving the structural stability of the entire positioning tooling. The cooperation between the cross beam tenon 402 and the first fixing groove 302 makes the installation of the cross beam 40 simple and fast, without the need for additional fasteners, reducing the assembly difficulty. The connection between the cross beam 40 and the second support rod 50 is based on the same principle.

[0048] The assembly principle of the support frame is as follows: install the second support rod 50 between the two cross beams 40, fixedly install the two cross beams 40 between the two first support rods 30, then install the support tenons 303 of the first support rod 30 on the grooves 202 at both ends of the cavity limiting tray 20 and apply silicone at the splicing joints, install the cable clamp 10 on the clamping fixing grooves 101 of the first support rod 30, the second support rod 50 and the cross beam 40, and finally install the limiting block 60 on the top cross beam 40.

[0049] In this embodiment, the positioning slot 201 extends along the length direction of the cavity limiting tray 20, and one end of the positioning slot 201 penetrates through the right side of the cavity limiting tray 20, while the other end is a blind end.

[0050] It can be understood that by extending the positioning slot 201 along the length direction of the cavity limiting tray 20, with one end penetrating through the right side of the cavity limiting tray 20 and the other end being a blind end (i.e., not penetrating), the phase shifter assembly can be placed into the positioning slot 201 from the right side of the cavity limiting tray 20 and then slide along the length direction of the cavity limiting tray 20 to the designated position.

[0051] It should be noted that the distance between the blind end and the proximal end of the cavity limiting tray 20 should ensure that the first feeder cable 13 of the phase shifter assembly to be welded and installed near the blind end is within the range defined by the crossbeam 40. Preferably, the distance between the blind end of the positioning slot 201 and the proximal end of the cavity limiting tray 20 is 20 mm, and the width and depth of the positioning slot 201 should ensure that the phase shifter assembly to be welded and installed can move freely when installed in the positioning slot 201.

[0052] The working principle of the positioning tooling provided in this embodiment is as follows:

[0053] First, the phase shifter assembly is loaded into the positioning slot 201 of the cavity limiting tray 20, and one end of the phase shifter assembly is aligned with the blind end of the positioning slot 201 on the cavity limiting tray 20.

[0054] According to the phase shifter ports to be welded and installed, select the feeder cables 13 with adapted ports. Insert a tin ring 00 with a prefabricated diameter of 1.2 mm into the feeder cable 13. The tin ring 00 is preferably made of lead-free tin wire wound in a spiral, and its unfolded length should meet the solder consumption required for the electrical connection performance of the corresponding solder joints. Insert the feeder cable 13 into the welding positions of the cavity of the phase shifter assembly to be welded and installed in sequence, and at the same time, fix the feeder cable 13 on the corresponding cable clip 10.

[0055] Then, place the positioning tooling on the outer conductor welding platform (not shown in the figure), and start the automatic welding machine to perform sequential welding processing on the outer conductor solder joints of the phase shifter assembly to be welded and installed according to the preset program.

[0056] After completing the outer conductor welding, place the positioning tooling on the inner conductor welding platform (not shown in the figure), and start the automatic welding machine to perform sequential welding processing on the inner conductor solder joints of the phase shifter assembly to be welded and installed according to the preset program. The inner conductor welding platform will automatically turn over after welding the inner conductor solder joints on one side to automatically weld the inner conductor solder joints on the other corresponding side.

[0057] The utility model clamps and positions the phase shifter cavity 11 and the feeder cable 13 through a positioning tooling, which can cooperate with welding equipment to realize automatic welding processing at different solder joint positions. At the same time, it can also ensure the controllability and consistency of the welding of the phase shifter cavity 11, the feeder cable 13 and the circuit. While improving the product performance, it also improves the processing efficiency and reduces the labor cost.

[0058] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0059] The above-described embodiments only represent the specific implementation manners of the utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the utility model.

Claims

1. A positioning tool for welding a cavity phase shifter, characterized in that: The positioning tooling includes a cavity limiting tray and a support frame; a positioning slot for loading the phase shifter assembly to be welded is provided on the upper surface of the cavity limiting tray; a groove is provided at the left and right ends of the upper surface of the cavity limiting tray respectively, and a supporting tenon is provided at the corresponding position of the bottom of the support frame, and the support frame and the cavity limiting tray are fixedly connected by the supporting tenon cooperating with the groove; a plurality of cable clamps are installed on one side of the support frame, and the cable clamps are used to clamp and position the feeder cables to be welded.

2. The positioning tool for welding a cavity phase shifter according to claim 1, characterized in that: The support frame includes two first support rods, and the bottoms of the two first support rods are respectively provided with support tenons for cooperating and connecting with the grooves.

3. The positioning tool for welding a cavity phase shifter according to claim 2, characterized in that: Two cross beams are connected between the two first support rods at intervals, and a second support rod is connected between the two cross beams.

4. The positioning tool for welding a cavity phase shifter according to claim 3, characterized in that: A plurality of clip fixing grooves are provided at intervals on one side surface of the first support rod, the cross beam and the second support rod, and the clip fixing grooves are used to install the cable clips.

5. The positioning tool for welding a cavity phase shifter according to claim 3, characterized in that: A limiting block is installed on the upper crossbeam.

6. The positioning tool for welding a cavity phase shifter according to claim 5, characterized in that: A side surface of the limiting block is coplanar with a side surface of the cavity limiting tray, and the cable clamp does not protrude from the coplanar surface.

7. The positioning tool for welding a cavity phase shifter according to claim 3, characterized in that: The two first support rods are respectively provided with a first fixing groove, and both ends of the crossbeam are provided with crossbeam tenons for matching with the first fixing grooves for fixed connection.

8. The positioning tool for welding a cavity phase shifter according to claim 3, characterized in that: The two cross beams are respectively provided with second fixing grooves, and the two ends of the second support rod are provided with second tenons for matching with the second fixing grooves for fixed connection.

9. The positioning tool for welding a cavity phase shifter according to claim 1, characterized in that: The positioning slot extends along the length direction of the cavity limiting tray, and one end of the positioning slot passes through the right side of the cavity limiting tray, and the other end is a blind end.

10. The positioning tool for welding a cavity phase shifter according to claim 4, characterized in that: The clip fixing groove is a step-shaped through groove.

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