Composite assembling and welding positioning clamp applied to feed device

Abstract

The utility model discloses a composite assembling and welding positioning clamp applied to a feeder, which comprises a base, and the upper surface of the base is provided with a transmission line positioning groove and a reinforcing rib; an SMA positioning surface and a mounting screw hole are arranged on the side surface of the base, and jacking mechanisms are arranged at the SMA positioning surface and the mounting screw hole; a cover plate used for pressing a transmission line is arranged above the base, one side of the cover plate is connected with the base through a torsional spring and a plug pin, the other side of the cover plate is a movable opening used for opening and closing, and the cover plate is connected with the base through magnetic attraction. A positioning groove matched with the transmission line positioning groove in the upper surface of the base is formed in the lower surface of the cover plate, and a heat insulation gasket is arranged at the positioning groove. The clamp is convenient to clamp and quick and accurate in positioning; heat insulation measures are taken between the parts and the clamp, and the welding temperature condition is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic assembly, in particular to a composite welding positioning fixture used for a feeder. Background Art

[0002] The feeder is an important component of the planar helical antenna. It is welded by a transmission line, an SMA (SubMiniatureversion A) plug, and a silver-plated wire. The welding quality directly affects the antenna performance. Currently, flat-nose pliers are used for clamping, verticality and symmetry are visually inspected, and cotton balls are used for heat insulation. This welding process makes it difficult to ensure welding quality, resulting in poor product consistency, high rework rate, and low first-time acceptance rate. Utility Model Content

[0003] In view of the above-mentioned problems, the utility model proposes a composite welding positioning fixture for the feeder, which adopts the design concept of a comprehensive fixture with spring, push, press and suction, and performs positioning welding on the positions of the components of the feeder to meet the requirements of product consistency. The fixture is convenient for clamping and the positioning is fast and accurate. Insulation measures are taken between the components and the fixture to ensure the welding temperature conditions.

[0004] The above purpose is achieved through the following technical solutions:

[0005] A composite welding positioning fixture for a feeder comprises a base, wherein the upper surface of the base is provided with a transmission line positioning groove and a reinforcing rib; an SMA positioning surface and a mounting screw hole are arranged on the side of the base, and a tightening mechanism is provided at the SMA positioning surface and the mounting screw hole; a cover plate for pressing the transmission line is provided above the base, one side of the cover plate is connected to the base by a torsion spring and a latch, the other side of the cover plate is a movable opening for opening and closing, and the cover plate is connected to the base by magnetic attraction, the lower surface of the cover plate is provided with a positioning groove that cooperates with the transmission line positioning groove on the upper surface of the base, and a thermal insulation pad is provided at the positioning groove.

[0006] Furthermore, the tightening mechanism includes a fixing block, both sides of the fixing block are connected to the mounting screw holes on the side of the base by mounting bolts, a spring locking mechanism is arranged in the middle of the fixing block for fixing the SMA plug, the spring locking mechanism includes a knob, an internal threaded hole is arranged in the middle of the knob, the knob passes through the middle of the fixing block and is threadedly connected to the screw on the other side, a spring and a baffle are arranged between the knob and the screw, and a heat insulation plate is arranged at the nail head end of the screw.

[0007] Furthermore, a magnet is arranged on the base, and a suction head corresponding to the magnet is arranged at the movable opening of the cover.

[0008] Furthermore, a clearance groove is designed on the base.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] The utility model has a transmission line positioning groove made on the upper surface of the base, and an SMA positioning surface arranged on the side to ensure the verticality and symmetry requirements between the welding parts; it avoids the discreteness of the product caused by the visual reference, and greatly improves the consistency of the product. In order to ensure the welding temperature, insulation measures are taken between the parts and the fixture to avoid the poor insulation effect of cotton balls and the potential safety hazards. The integrated fixture design concept of spring, push, press and suck is adopted to achieve the effect of convenient clamping and rapid positioning. Compared with the existing technology, the utility model reduces the difficulty of welding operation and avoids the discreteness of the product caused by the visual reference; it greatly improves the consistency of the product and the one-time acceptance rate, stabilizes the product quality; and improves the production efficiency of feeder welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front view of the overall structure of the utility model, and the figure shows the state where the cover is opened;

[0012] Figure 2 It is a top view of the overall structure of the utility model, and the figure shows the state where the cover is opened;

[0013] Figure 3 It is a front view of the base of the utility model;

[0014] Figure 4 A top view of the base of the utility model;

[0015] Figure 5 It is a structural schematic diagram of the cover plate of the utility model;

[0016] Figure 6 It is a three-dimensional structural schematic diagram of the tightening mechanism of the utility model;

[0017] Figure 7 It is a schematic diagram of the main structure of the tightening mechanism of the utility model.

[0018] Explanation of the accompanying drawings: 1. Base; 2. Cover plate; 3. Clamping mechanism; 4. Torsion spring; 5. Latch; 6. Magnet; 7. Suction head; 8. Bolt; 9. Spring locking mechanism; 10. Transmission line positioning groove; 11. Reinforcing rib; 12. SMA positioning surface; 13. Give way groove; 14. Thermal insulation pad; 3-1. Knob; 3-2. Spring; 3-3. Fixing block; 3-4. Screw; 3-5. Baffle; 3-6. Thermal insulation board. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1-7 As shown, the composite welding positioning fixture used for the feeder described in the utility model adopts the design concept of a comprehensive fixture of spring, push, press and suction, and designs and manufactures a composite welding positioning fixture by positioning and welding the positions of the components of the feeder.

[0021] Figure 1-2 The figure shows the overall structure diagram of the utility model, which includes a base 1, a cover plate 2, a tightening mechanism 3 and other parts.

[0022] The base 1 and the cover 2 are connected by a torsion spring 4 and a latch 5. A strong magnet 6 is arranged on the base, and the magnet is attracted to the suction head 7 on the cover, and the cover 2 is pressed against the base 1 by magnetic force, thereby pressing the transmission line. The tightening mechanism 3 is fastened to one side of the base by four M2 bolts 8, and the SMA plug is fixed by a spring locking mechanism 9.

[0023] Figure 3-4 The base structure diagram of the utility model is shown. The base 1 is the bearing part of the entire tooling. The upper surface of the base is made with transmission line positioning grooves 10 and reinforcing ribs 11 to ensure the symmetry of the transmission line and the joint and the strength of welding during operation; the side of the base 1 is arranged with SMA positioning surfaces 12 and mounting screw holes for connecting the top tightening mechanism to ensure the verticality requirements between the welded parts; at the same time, the SMA positioning surface is required to reduce the contact area as much as possible to avoid too fast heat dissipation and affect the welding effect. In order to ensure the operating space during the welding assembly process, multiple clearance grooves 13 are designed on the base.

[0024] Figure 5 The cover plate structure diagram of the utility model is shown. The cover plate 2 is a thin plate structure. A positioning groove that matches the positioning groove on the base is made on the lower surface. A heat insulating pad 14 is arranged at the contact point with the transmission line. The suction head is installed at the movable mouth of the cover plate. The distance between the suction head and the strong magnet is changed by adjusting the gasket to control the strength of the suction.

[0025] Figure 6-7 The structure diagram of the tightening mechanism 3 of the utility model is shown. The tightening mechanism 3 is used to fix the end face of the SMA connector. The extension of the spring 3-2 is controlled by rotating the knob 3-1 to achieve the tightening and loosening of the SMA plug. At the same time, considering the heat dissipation, a heat insulation board is installed. Specifically, the tightening mechanism includes a fixed block 3-3, and the two sides of the fixed block are connected to the mounting screw holes on the side of the base through mounting bolts 8. A spring locking mechanism is arranged in the middle of the fixed block 3-3 for fixing the SMA plug. The spring locking mechanism 9 includes a knob 3-1, and an internal threaded hole is arranged in the middle of the knob. The knob passes through the middle of the fixed block and is connected to the screw 3-4 on the other side by a thread. A spring 3-2 and a baffle 3-5 are arranged between the knob and the screw, and a heat insulation board 3-6 is arranged at the nail head end of the screw.

[0026] Through the above design, the utility model is a composite welding positioning fixture used for feeders, which meets the requirements of product consistency, is easy to clamp, and can be positioned quickly and accurately; heat insulation measures are taken between the components and the fixture to ensure welding temperature conditions.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims

1. A composite welding and positioning fixture for a feeder, comprising a base, characterized in that: The upper surface of the base is provided with a transmission line positioning groove and reinforcing ribs; the side of the base is arranged with an SMA positioning surface and a mounting screw hole, and a tightening mechanism is provided at the SMA positioning surface and the mounting screw hole; a cover plate for pressing the transmission line is provided above the base, one side of the cover plate and the base are connected by a torsion spring and a latch, and the other side of the cover plate is a movable opening for opening and closing, which is connected to the base by magnetic attraction, and the lower surface of the cover plate is provided with a positioning groove that cooperates with the transmission line positioning groove on the upper surface of the base, and a thermal insulation pad is provided at the positioning groove.

2. A composite welding and positioning fixture for a power feeder according to claim 1, characterized in that: The tightening mechanism includes a fixing block, both sides of which are connected to the mounting screw holes on the side of the base by mounting bolts, a spring locking mechanism is arranged in the middle of the fixing block for fixing the SMA plug, the spring locking mechanism includes a knob, an internal threaded hole is arranged in the middle of the knob, the knob passes through the middle of the fixing block and is threadedly connected to the screw on the other side, a spring and a baffle are arranged between the knob and the screw, and a heat insulation plate is arranged at the nail head end of the screw.

3. A composite welding and positioning fixture for a power feeder according to claim 1 or 2, characterized in that: A magnet is arranged on the base, and a suction head corresponding to the magnet is arranged at the movable opening of the cover.

4. A composite welding and positioning fixture for a power feeder according to claim 1 or 2, characterized in that: A yielding groove is designed on the base.

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