A safety type radio frequency connector insulator cutting tool
By designing a safe RF connector insulator cutting fixture, and utilizing a precise positioning and automatic reset structure, the problems of low cutting efficiency and safety risks were solved, achieving efficient and safe insulator cutting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHENGDU RUICHUANG MICROWAVE TECH CO LTD
- Filing Date
- 2026-03-31
- Publication Date
- 2026-06-02
AI Technical Summary
Existing technologies for radio frequency connectors suffer from low cutting efficiency, inconsistent dimensions, and safety risks associated with insulator cutting.
A safe RF connector insulator cutting fixture was designed, including a base, positioning seat, guide post, pressure cap, cutter, protective plate and spring structure. Through precise positioning and automatic reset mechanism, the cutting quality and safety are ensured.
It improved cutting quality and yield, reduced insulator scrap rate, enhanced operational safety and production efficiency, and ensured cutting consistency and precision.
Smart Images

Figure CN122125768A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of RF connector manufacturing tooling technology, specifically a safety RF connector insulator cutting tooling. Background Technology
[0002] In the production of RF connectors, insulators often need to be cut in half or on one side to temporarily enlarge their inner diameter to meet specific assembly requirements. Currently, the industry commonly uses manual hand-held cutting tools or simple jigs for assistance. However, this traditional processing method has significant drawbacks: on the one hand, manual cutting is inefficient and it is difficult to ensure the flatness and dimensional consistency of the cut, resulting in a high scrap rate for insulators and failing to meet the efficiency and precision requirements of mass production; on the other hand, manual operation poses a high safety risk, as operators are prone to accidental contact with the blade and injury. Summary of the Invention
[0003] To address the aforementioned technical problems, the present invention provides the following technical solution: a safety-type RF connector insulator cutting fixture, comprising: Base; A positioning seat is installed on the base. The positioning seat is provided with a positioning groove for positioning the insulator. Both the base and the positioning seat are provided with cutting slits. Guide columns are vertically mounted on the base; The pressure cap is movably mounted on the guide post; A cutter is installed inside the pressure cap and is aligned with the cutting seam. A protective plate is disposed below the pressure cap and is movably fitted onto the guide post. The protective plate has a through hole for the cutter to pass through. A return spring, acting between the pressure cap and the base, provides a force to return the pressure cap upwards; and A guard plate support spring acts between the pressure cap and the guard plate to provide a force that moves the guard plate downward to wrap around the cutter.
[0004] Furthermore, the positioning seat is detachably mounted on the base.
[0005] Furthermore, the positioning seat has a semi-open structure, and its side is provided with a slot for picking up and putting down insulators.
[0006] Furthermore, the cutter is adjustablely fixed to the gland by screws.
[0007] Furthermore, there are multiple guide posts arranged around the positioning seat, and the reset spring and the guard plate support spring are both sleeved on the guide posts.
[0008] The advantages of this invention compared to the prior art are: 1. Improve cutting quality and yield: The precise alignment of the positioning seat and the cutter ensures the accuracy of the cutting position, effectively solving problems such as inaccurate positioning, skewed cuts, and edge cracking during manual cutting, significantly reducing the scrap rate of insulators and improving product yield.
[0009] 2. Enhanced Operational Safety: The combination of a protective plate, a supporting spring, and a pressure cap allows the cutter to be completely concealed when not in operation, extending only when pressed down to the working position. This structure effectively avoids the risk of accidental contact with the blade by the operator, significantly improving operational safety.
[0010] 3. Improve production efficiency: The use of positioning seat for quick clamping, capping operation and automatic reset spring simplifies the operation steps, effectively improves the cutting efficiency of single products, and can better meet the needs of mass production.
[0011] 4. Ensure consistent cutting: The cutter is fixed by screws and precisely aligned with the cutting seam on the positioning seat, ensuring that the cutting path is consistent each time, thereby improving the straightness and dimensional consistency of the cut and improving the assembly accuracy of the insulators. Attached Figure Description
[0012] Figure 1 This is a cross-sectional view of the overall structure of the present invention.
[0013] Figure 2 This is a schematic diagram of the overall structure of the present invention.
[0014] Reference numerals in the attached diagram: 1. Base; 2. Guide post; 3. Return spring; 4. Protective plate support spring; 5. Pressure cap; 6. Cutter; 7. Protective plate; 8. Insulator; 9. Positioning seat; 10. Insulator placement and removal slot; 11. Cutter insertion and adjustment slot; 12. Threaded hole for fixing the cutter. Detailed Implementation
[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0016] like Figure 1 , Figure 2 As shown, this embodiment provides a safe RF connector insulator cutting fixture, which is mainly used for cutting insulator 8 in RF connectors.
[0017] The fixture includes a base 1 serving as the installation foundation. A positioning seat 9 is detachably mounted on the base 1, and the positioning seat 9 is detachable by engaging with the base 1 via a slot. The positioning seat 9 features a replaceable design, with its positioning groove shape matching the shape of insulators 8 of different specifications for quick replacement. The positioning seat 9 has a semi-open structure, with an insulator loading / unloading slot 10 on its side for easy insertion or removal of insulators 8 by operators. Both the base 1 and the positioning seat 9 have straight cutting slits at their centers for the cutter 6 to pass through.
[0018] Four guide posts 2 are vertically mounted on the base 1. The pressure cap 5 is movably fitted onto the four guide posts 2 through guide holes on it and can move linearly along the guide posts 2. A return spring 3 is fitted onto the guide posts 2 and located between the pressure cap 5 and the base 1. It is used to drive the pressure cap 5 to automatically return to its original position after cutting.
[0019] The guard plate 7 is located below the pressure cap 5 and is movably fitted onto the guide post 2. A straight through hole for the cutter 6 to pass through is provided in the middle of the guard plate 7. The guard plate support spring 4 is fitted outside the guide post 2 and located between the pressure cap 5 and the guard plate 7. Its elastic force always pushes the guard plate 7 downward, so that it wraps around the blade of the cutter 6 in the initial state.
[0020] The cutter 6 is vertically mounted inside the pressure cover 5 by screw clamping. The pressure cover 5 is provided with a cutter insertion and adjustment groove 11 and a cutter fixing threaded hole 12. The installation position of the cutter 6 can be adjusted up and down, thereby controlling the cutting length of the insulator 8. The blade of the cutter 6 is precisely aligned with the cutting seam on the base 1 and the positioning seat 9.
[0021] like Figure 1 , Figure 2 As shown, the present invention discloses a safety-type RF connector insulator cutting fixture, the working principle of which is as follows: Initially, under the action of the protective plate support spring 4, the protective plate 7 is in its lowest position, completely enclosing the cutter 6 within the cavity of the pressure cover 5, preventing the blade from being exposed. During operation, the operator pushes the insulator 8 to be cut from the insulator pick-and-place slot 10 into the positioning slot of the positioning seat 9 to complete the positioning. Then, the pressure cover 5 is pressed down by hand, and the pressure cover 5 overcomes the elastic force of the return spring 3 and moves downward along the guide post 2. In the initial stage of pressing down, the protective plate support spring 4 still holds the protective plate 7 in its lowest position, and the cutter 6 remains hidden. When the lower end face of the protective plate 7 contacts the upper surface of the base 1, the pressure cover 5 is pressed down further, and the protective plate 7 is held in place by the base 1 and begins to compress the protective plate support spring 4. At this time, the blade of the cutter 6 extends out from the through hole of the protective plate 7 and passes through the cutting seams on the base 1 and the positioning seat 9 in sequence, smoothly cutting the insulator 8. After cutting is completed, the pressure cover 5 is released, and under the action of the return spring 3, the pressure cover 5 drives the cutter 6 to move upward and reset. At the same time, under the action of the guard plate support spring 4, the guard plate 7 moves downward again, wrapping the blade of the cutter 6 again and restoring it to its initial safe state.
[0022] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A safety-type RF connector insulator cutting fixture, characterized in that, include: Base (1); A positioning seat (9) is installed on the base (1). The positioning seat (9) is provided with a positioning groove for positioning the insulator (8). Both the base (1) and the positioning seat (9) are provided with cutting slits. Guide column (2) is vertically mounted on the base (1); The pressure cap (5) is movable up and down on the guide post (2); A cutter (6) is installed inside the cover (5) and is aligned with the cutting seam; The guard plate (7) is located below the pressure cap (5) and can be moved up and down on the guide post (2). The guard plate (7) has a through hole for the cutter (6) to pass through. A reset spring (3) acts between the pressure cap (5) and the base (1) to provide a force that causes the pressure cap (5) to reset upward; as well as A guard plate support spring (4) acts between the pressure cap (5) and the guard plate (7) to provide a force that moves the guard plate (7) downward to wrap around the cutter (6).
2. The safety RF connector insulator cutting fixture according to claim 1, characterized in that: The positioning seat (9) is detachably mounted on the base (1).
3. The safety RF connector insulator cutting fixture according to claim 1, characterized in that: The positioning seat (9) is a semi-open structure, and its side is provided with a pick-and-place slot (10) for picking up and placing insulators (8).
4. The safety RF connector insulator cutting fixture according to claim 1, characterized in that: The cutter (6) is adjustablely fixed to the cover (5) by screws.
5. The safety RF connector insulator cutting fixture according to claim 1, characterized in that: There are multiple guide posts (2) arranged around the positioning seat (9), and the reset spring (3) and the guard plate support spring (4) are both sleeved on the guide posts (2).