Floating connector compression spring tooling
By designing a floating connector compression spring fixture, efficient, safe, and precise spring compression of the TMA-K type RF connector was achieved, solving the difficulties in manual operation and improving assembly quality and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI HUADA SCI TECH
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-31
AI Technical Summary
In the existing technology, the spring compression assembly of the TMA-K type floating RF connector relies on manual operation, which has problems such as difficult operation, low precision, high safety risks and poor assembly, making it difficult to achieve efficient, safe and accurate spring compression.
A floating connector compression spring fixture was designed, including a base and a pressure cap. The movable clamping of the components is achieved through a threaded connection, ensuring that the inner and outer shells of the connector are vertically aligned, and providing stable clamping and retaining ring assembly to prevent skewing and detachment.
It improves assembly efficiency and precision, reduces the physical exertion of operators, ensures the reliability and electrical performance of connectors, and reduces safety risks.
Smart Images
Figure CN224582666U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of RF connector manufacturing tooling design technology, and particularly relates to a floating connector compression spring tooling. Background Technology
[0002] The TMA-K type floating RF connector is widely used in high-frequency systems such as communications and radar. Its core function relies on its internal spring structure. This spring needs to provide necessary floating displacement in the X and Y axes (horizontal plane) to compensate for alignment errors during equipment assembly; at the same time, it must maintain stable and sufficient contact pressure in the Z axis (insertion direction) to ensure long-term reliability and electrical performance of RF signal transmission. However, achieving this function places extremely high demands on the spring compression assembly process: the spring compression deformation is large, and the deformation must be large during compression. Furthermore, the vertical alignment of the connector's inner and outer shells must be strictly maintained during compression; any misalignment will lead to component damage or functional failure.
[0003] Currently, the industry generally relies on purely manual methods for spring compression and retaining ring assembly. The operator must operate with one hand: pressing the outer shell with the thumb and the flange shell with the index finger to fully expose the retaining ring groove; the other hand attempts to precisely insert the retaining ring into the groove. This method has significant technical bottlenecks: First, the force required for spring compression is large, making it difficult for the operator to apply force consistently and easily leading to fatigue; second, performing precise alignment while compressing with great force makes it extremely easy for the retaining ring to be misaligned or shifted, causing poor connector contact or eventual detachment; third, manual operation is high-risk, as sharp parts can easily become uncontrollably ejected or scratch the operator under pressure, posing a safety hazard. Furthermore, the lack of effective tooling makes it difficult to ensure the stable positioning and clamping of the workpiece during compression, further increasing the risk of retaining ring deformation or detachment.
[0004] Therefore, developing a dedicated compression spring fixture capable of precisely positioning and clamping connector assemblies, efficiently and effortlessly compressing large-stroke springs, strictly maintaining the shell perpendicularity during compression, and safely and reliably assisting in retaining ring assembly has become an urgent technical need to address the production bottlenecks of TMA-K type floating RF connectors, improve assembly quality and efficiency, and ensure operational safety. How to design a fixture that meets these comprehensive requirements has long been a challenge for those skilled in the art. Utility Model Content
[0005] To address the aforementioned technical problems, this utility model provides a floating connector compression spring fixture. This floating connector compression spring fixture can accurately compress the spring, ensure the two outer shells are perpendicular, is simple to operate, and can accurately and quickly complete the assembly of the spring compression retaining ring, thereby improving the pass rate of the assembled retaining ring of the product.
[0006] This utility model solves the above problems through the following technical means: A floating connector compression spring fixture, characterized in that it includes a base and a pressure cap, wherein: a positioning surface is provided on the end face of the base away from the pressure cap; an external thread is formed by tapping on the outer side of the end face of the base near the pressure cap; a reference surface is provided on the end face of the base near the pressure cap; an external relief groove for a tapping tool is provided in the middle of the base; a limiting hole is opened at the center of the reference surface; an internal thread relief cavity is formed by tapping on the inner surface of the pressure cap; an internal relief groove for a tapping tool is provided inside the cavity of the pressure cap; a relief hole is opened at the center of the pressure cap; the pressure cap is threaded onto the external thread of the base; an assembled product is installed in the limiting space formed between the internal thread relief cavity and the reference surface; by rotating the pressure cap, the pressure cap can be driven to move up and down relative to the base along the thread; the movable pressure cap can compress and drive the flange shell of the assembled product to move up and down relative to the shell.
[0007] Preferably, the outer shell of the assembled product is a three-section sleeve structure, one end of the flange shell is open, the other end of the flange shell is turned inward to form a limiting flange, the flange shell is movably fitted onto the outer shell, a spring is installed between the outer shell and the flange shell, one end of the spring is limited by the shoulder of the outer shell, the other end of the spring is limited by the limiting flange of the flange shell, and the upper part of the outer shell is also provided with an annular groove for installing a retaining ring, the retaining ring being used to limit the limiting flange.
[0008] Preferably, one end of the retaining ring is provided with a beveled opening, and a plurality of fan-shaped deformation grooves are symmetrically provided on the inner side of the retaining ring, wherein the included angle of the beveled opening is in the range of 100° to 150°.
[0009] Preferably, the diameter of the limiting hole is in the range of 12.5 to 13 mm, the thickness of the limiting hole is in the range of 0.9 to 1 mm, the size of the external thread is M40, the diameter of the external relief groove is φ38 mm, the length of the external relief groove is 1 mm to 1.1 mm, the diameter of the positioning surface is φ40 mm, and the length of the positioning surface is in the range of 16.5 mm to 17 mm.
[0010] Preferably, the size of the internal thread of the relief cavity is M40, the length of the internal thread of the relief cavity ranges from 11.8 mm to 12.2 mm, the diameter of the inner relief groove is φ41 mm, the length of the inner relief groove is from 1.8 mm to 2 mm, the diameter of the relief hole ranges from 16.02 mm to 16.05 mm, and the thickness of the relief hole ranges from 1 mm to 1.1 mm.
[0011] This utility model has the following beneficial effects: 1) This fixture ensures vertical compression and full exposure of the retaining ring groove: The fixture design strictly guarantees that the inner and outer shells of the connector remain vertically aligned during the compression of the large-deformation spring, avoiding damage to components caused by misalignment. At the same time, it effectively exposes the retaining ring groove of the shell, creating the necessary conditions for retaining ring assembly and fundamentally solving the problems of incomplete assembly, deformation, or detachment of the retaining ring.
[0012] 2) This tooling significantly improves assembly efficiency, precision, and safety. It achieves accurate spring positioning, rapid compression, and stable clamping, avoiding uneven manual force application and workpiece movement. This makes the compression process highly efficient and controllable, increasing assembly efficiency several times over and eliminating human error. Simultaneously, the tooling significantly reduces the physical exertion required for operators to compress large springs through mechanical force application, and the stable clamping effectively prevents component splashing, slippage, and operator finger injuries caused by unstable product placement or uncontrolled spring force, greatly ensuring operational safety.
[0013] 3) This fixture successfully achieved precise, efficient, and safe compression of large deformation springs and reliable assembly of retaining rings. It not only directly improved the production yield and consistency of the TMA-K type floating RF connector, but also ensured high reliability and excellent electrical performance of the product connection by guaranteeing its core floating compensation function and stable Z-axis contact pressure, demonstrating significant technological advancement and practical value. Attached Figure Description
[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0015] Figure 1 is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 is a schematic diagram of the base structure of this utility model; Figure 3 is a schematic diagram of the cap structure of this utility model; Figure 4 is a schematic diagram of the assembled product structure of this utility model; Figure 5 is a schematic diagram of the assembled product of this utility model without the retaining ring installed; Figure 6 is a structural schematic diagram of the assembled product with the retaining ring installed in this utility model; Figure 7 is a schematic diagram of the extrusion process when installing the retaining ring in the assembled product of this utility model. Figure 8 is a schematic diagram of the retaining ring structure of this utility model; Figure 9 is a schematic diagram of the assembled product in this utility model.
[0017] Among them, 1-base, 101-positioning surface, 102-external thread, 103-datum surface, 104-external relief groove, 105-limiting hole, 2-pressure cap, 201-internal thread relief cavity, 202-internal relief groove, 203-relief hole, 3-assembled product, 301-shell, 302-flange shell, 303-spring, 304-retaining ring, 305-ring groove, 306-shoulder, 307-sloping opening, 308-fan-shaped deformation groove. Detailed Implementation
[0018] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0019] The present invention will now be described in detail with reference to the accompanying drawings.
[0020] As shown in Figures 1 to 3, the floating connector compression spring fixture includes a base 1 and a pressure cover 2. In the figures, a positioning surface 101 is provided on the end face of the base 1 away from the pressure cover 2. An external thread 102 is formed by tapping the outer side of the end face of the base 1 near the pressure cover 2. A reference surface 103 is provided on the end face of the base 1 near the pressure cover 2. An external relief groove 104 for tapping tools is provided in the middle of the base 1. A limiting hole 105 is opened in the center of the reference surface 103. An internal thread relief cavity 201 is formed by tapping the inner surface of the pressure cover 2. An internal relief groove 202 for tapping tools is provided inside the cavity of the pressure cover 2. A relief hole 203 is opened in the center of the pressure cover 2.
[0021] In actual operation, the pressure cap 2 is threaded onto the external thread 102 of the base 1. The assembled product 3 is installed in the limiting space formed between the internal thread clearance cavity 201 and the reference surface 103. By rotating the pressure cap 2, the pressure cap 2 can move up and down relative to the base 1 along the thread. The movable pressure cap 2 can compress and drive the flange housing 302 of the assembled product 3 to move up and down relative to the housing 301. The limiting hole 105 is used to install the bottom of the assembled product 3.
[0022] In this embodiment, the diameter of the limiting hole 105 ranges from 12.5 to 13 mm, the thickness of the limiting hole 105 ranges from 0.9 to 1 mm, the external thread 102 is M40, the diameter of the external relief groove 104 is φ38 mm, the length of the external relief groove 104 is 1 mm to 1.1 mm, the diameter of the positioning surface 101 is φ40 mm, and the length of the positioning surface 101 ranges from 16.5 mm to 17 mm. The internal thread of the relief cavity 201 is M40, the length of the internal thread of the relief cavity 201 ranges from 11.8 mm to 12.2 mm, the diameter of the internal relief groove 202 is φ41 mm, the length of the internal relief groove 202 is 1.8 mm to 2 mm, the diameter of the relief hole 203 ranges from 16.02 mm to 16.05 mm, and the thickness of the relief hole 203 ranges from 1 mm to 1.1 mm.
[0023] As shown in Figures 5 to 9, the outer shell 301 of the assembled product 3 is a three-section sleeve structure. The diameter of the top tube in the three-section sleeve structure is smaller than that of the relief hole 203. One end of the flange shell 302 is open, and the other end of the flange shell 302 is turned inward to form a limiting flange. The flange shell 302 is movably fitted onto the outer shell 301. A spring 303 is installed between the outer shell 301 and the flange shell 302. One end of the spring 303 is limited by the shoulder 306 of the outer shell 301, and the other end of the spring 303 is limited by the limiting flange of the flange shell 302. The upper part of the outer shell 301 is also provided with an annular groove 305 for installing a retaining ring 304. The retaining ring 304 is used to limit the limiting flange.
[0024] In actual operation, since the outer diameter of the top pipe in the three-section sleeve structure is smaller than the diameter of the relief hole 203, and the outer diameter of the flange of the flange shell 302 is larger than the diameter of the relief hole 203, the relief hole 203 of the gland 2 will precisely compress the flange shell 302 during the downward process of the gland 2, so as to fully expose the annular groove 305 and facilitate the installation of the retaining ring 304.
[0025] As shown in Figure 7, the retaining ring 304 is made of elastic material. One end of the retaining ring 304 is provided with a sloping opening 307. Multiple fan-shaped deformation grooves 308 are symmetrically arranged on the inner side of the retaining ring 304. The included angle α of the sloping opening 307 is in the range of 100° to 150°. The sloping surface of the sloping opening 307 can guide its expansion. The fan-shaped deformation grooves 308 can reduce the weight on the one hand and reduce its rigidity on the other hand, which facilitates its deformation and repositioning.
[0026] In actual operation, the assembled product is placed in the limiting hole of the base, and the pressure cap is screwed through the product and into the base thread. When the thread is screwed in, the spring is compressed, ensuring that the product will not be crooked or loose after installation. When the thread is screwed in for a certain length, the retaining ring groove of the outer shell is fully exposed, which facilitates the assembly of the retaining ring and ensures that the assembled retaining ring will not fall off.
[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A floating connector compression spring tool, characterized by, Includes a base (1) and a pressure cap (2), wherein: The base (1) has a positioning surface (101) on the end face away from the pressure cover (2), and the base (1) has an external thread (102) formed by tapping the outer side of the end face near the pressure cover (2). The base (1) has a reference surface (103) on the end face near the pressure cover (2), and the base (1) has an external relief groove (104) for tapping tools in the middle. A limit hole (105) is opened in the center of the reference surface (103). The inner surface of the pressure cap (2) is tapped to form an internal thread relief cavity (201), and an internal relief groove (202) for a tapping tool is provided inside the cavity of the pressure cap (2). A relief hole (203) is opened in the center of the pressure cap (2). The gland (2) is threaded onto the external thread (102) of the base (1). The assembly product (3) is installed in the limiting space formed between the internal thread clearance cavity (201) and the reference surface (103). By rotating the gland (2), the gland (2) can be driven to move up and down relative to the base (1) along the thread. The movable gland (2) can squeeze and drive the flange shell (302) of the assembly product (3) to move up and down relative to the shell (301).
2. The floating connector compression spring tooling of claim 1, wherein, The outer shell (301) of the assembled product (3) is a three-section sleeve structure. One end of the flange shell (302) is open, and the other end of the flange shell (302) is turned inward to form a limiting flange. The flange shell (302) is movably fitted on the outer shell (301). A spring (303) is installed between the outer shell (301) and the flange shell (302). One end of the spring (303) is limited by the shoulder (306) of the outer shell (301), and the other end of the spring (303) is limited by the limiting flange of the flange shell (302). The upper part of the outer shell (301) is also provided with an annular groove (305) for installing a retaining ring (304). The retaining ring (304) is used to limit the limiting flange.
3. The floating connector compression spring tooling of claim 2, wherein, The retaining ring (304) has a beveled opening (307) at one end, and multiple fan-shaped deformation grooves (308) are symmetrically arranged on the inner side of the retaining ring (304). The included angle (α) of the beveled opening (307) is in the range of 100° to 150°.
4. The floating connector compression spring tooling of claim 1, wherein, The diameter of the limiting hole (105) ranges from 12.5 to 13 mm, the thickness of the limiting hole (105) ranges from 0.9 to 1 mm, the size of the external thread (102) is M40, the diameter of the external relief groove (104) is φ38 mm, the length of the external relief groove (104) is 1 mm to 1.1 mm, the diameter of the positioning surface (101) is φ40 mm, and the length of the positioning surface (101) ranges from 16.5 mm to 17 mm.
5. The floating connector compression spring tooling of claim 1, wherein, The internal thread of the relief cavity (201) is M40, the length of the internal thread of the relief cavity (201) ranges from 11.8 mm to 12.2 mm, the diameter of the inner relief groove (202) is φ41 mm, the length of the inner relief groove (202) is 1.8 mm to 2 mm, the diameter of the relief hole (203) ranges from 16.02 mm to 16.05 mm, and the thickness of the relief hole (203) ranges from 1 mm to 1.1 mm.