Broadcast transmitter accessory machining positioning clamp
By designing a positioning fixture that includes a base, a fixed seat, a movable seat, and a handle, the problem of difficult clamping force control in the processing of copper parts was solved, achieving high-precision and safe processing operations and improving the processing quality and efficiency of broadcast transmitter accessories.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI SHI MAO LI ELECTROMECHANICAL EQUIP MFG CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-05-12
AI Technical Summary
In traditional copper parts processing, clamping force is difficult to control precisely, resulting in large processing errors and numerous safety hazards. Furthermore, manual clamping methods lack standardized positioning benchmarks, affecting processing accuracy and safety.
The positioning fixture, consisting of a base, a fixed seat, a movable seat, and a handle, combined with an internal hexagon screw, a locating pin, and a spring structure, achieves precise positioning and stable clamping of cylindrical components, while the eccentric wheel structure simplifies operation.
It improves processing accuracy and finished product qualification rate, reduces operational difficulty and safety risks, and enhances processing efficiency and safety.
Smart Images
Figure CN224223298U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of positioning fixture technology, and in particular relates to a machined positioning fixture for a broadcast transmitter accessory. Background Technology
[0002] As a critical infrastructure in the international communications field, broadcast transmitters possess irreplaceable strategic value in remote areas, marine environments, and special scenarios such as military and disaster relief. Broadcast transmitter manufacturers urgently need to build core competitiveness by improving equipment performance, reducing manufacturing costs, and optimizing production processes. Among these efforts, the processing technology for high-precision copper components has become one of the core bottlenecks restricting industrial upgrading.
[0003] Copper is widely used in the manufacture of key components for broadcast transmitters due to its excellent electrical conductivity and ductility. However, its softness and susceptibility to deformation place stringent requirements on precision machining. In traditional machining processes, to avoid surface damage caused by direct clamping with a vise, operators typically wrap the workpiece in a soft cloth for protective clamping and rely on manual fine-tuning for positioning. However, this process has the following significant technical drawbacks:
[0004] Existing technology uses soft cloth to cushion the clamping force to prevent scratches on the copper surface, but the deformation characteristics of soft materials make it difficult to precisely control the clamping force. In practice, operators need to make an empirical balance between "preventing surface damage" and "ensuring processing stability": if the clamping force is insufficient, processing vibration can easily cause workpiece displacement, resulting in dimensional deviations or even tool breakage; if excessive pressure is applied, uneven thickness of the soft cloth may cause local stress concentration, which may cause the workpiece surface to dent or deform.
[0005] Manual clamping methods lack standardized positioning benchmarks, resulting in random deviations in workpiece position during each clamping operation. In precision machining, even minute positioning errors accumulate over multiple processes, causing critical dimensions of the finished product (such as coaxiality and flatness) to fluctuate beyond tolerance ranges. Industry statistics indicate that the pass rate for similar parts processed using traditional methods is less than 70%, significantly increasing quality control costs.
[0006] Soft fabric fibers are prone to entanglement under the action of high-speed rotating cutters. This can lead to processing interruptions and tool damage, or even serious risks of operator injury. Statistical data shows that this process results in a personal injury accident rate of 0.35%, constituting an industry-wide safety problem.
[0007] To resolve the aforementioned technical contradictions, existing technologies have attempted improvements by modifying the material of the soft cloth and optimizing manual operation procedures. However, they have consistently failed to overcome the inherent contradictions between "flexible protection, rigid positioning, and safe processing." Therefore, developing a copper parts processing technology that balances surface protection, clamping accuracy, and operational safety has become a pressing technical challenge in the field of broadcast transmitter manufacturing. Utility Model Content
[0008] The purpose of this application is to provide a machining positioning fixture for radio transmitter accessories, which solves the clamping and positioning problems that occur during the machining of FM terminals in radio transmitters, ensuring machining accuracy while also ensuring the consistency of the machined parts, and increasing the survival rate and machining efficiency of the machined parts.
[0009] To achieve the above objectives, this application provides a machining positioning fixture for a broadcast transmitter accessory, comprising:
[0010] The base and a fixed seat, a movable seat, and a handle are mounted on the base. The fixed seat is mounted on the base by a hex socket screw and a locating pin perpendicular to the base. The movable seat is connected to the fixed seat by a standard part and a spring parallel to the base and perpendicular to the fixed seat. The handle is mounted on the base by a hex socket screw. The movable seat is installed between the fixed seat and the handle.
[0011] The inner sides of the fixed base and the inner sides of the movable base are respectively provided with hollowed-out concave semi-cylindrical structures for fixing cylindrical components.
[0012] The method described in the embodiments of this application may also have the following additional technical features:
[0013] Furthermore, the base and the mounting base are provided with two corresponding positioning pins and two mounting base screw holes, and the handle is provided with one corresponding handle screw hole.
[0014] Furthermore, when the fixed seat and the movable seat are in close contact, the concave semi-cylindrical structure on the inner side of the fixed seat and the concave semi-cylindrical structure on the inner side of the movable seat merge into a cylindrical structure. A circular hole is provided on the base corresponding to the cylindrical structure. The center of the circular hole and the center of the cylindrical structure are located on the same vertical line, and the radius of the circular hole is larger than the radius of the cylindrical structure.
[0015] Furthermore, the handle is connected to the handle screw hole via an internal hex screw, forming an eccentric wheel structure.
[0016] Furthermore, two channels are provided on the inner side of the fixed seat and the inner side of the movable seat, located on both sides of the concave semi-cylindrical structure. The channels pass through the fixed seat and the movable seat. Standard parts for connection and guidance are provided in the channels, and springs are provided circumferentially on the standard parts.
[0017] The machined positioning fixture for broadcast transmitter accessories provided in this application has the following advantages compared with the prior art:
[0018] The base and fixing seat in this embodiment are installed by locating pins and hex socket screws, which can ensure the accurate installation position of the fixing seat on the base, providing a reliable basis for the subsequent positioning of cylindrical parts and helping to improve machining accuracy.
[0019] In this embodiment, the inner sides of the fixed seat and the inner sides of the movable seat are respectively provided with hollowed-out concave semi-cylindrical structures. When the two are in close contact, they merge into a cylindrical structure. This structural design can match the shape of the cylindrical device well, realize the effective clamping of the cylindrical device, and prevent it from shaking or shifting during processing.
[0020] In this embodiment, a circular hole is provided on the base corresponding to the cylindrical structure, and the circular hole and the center of the cylindrical structure are located on the same vertical line. The radius of the circular hole is larger than the radius of the cylindrical structure. While ensuring stable clamping of the cylindrical device, it provides operating space for the machining tool, making it convenient to perform machining operations on the cylindrical device.
[0021] In this embodiment, the handle is connected to the screw hole of the handle by an internal hexagon screw to form an eccentric wheel structure. During operation, by rotating the handle (eccentric wheel structure), the movable seat can be easily and quickly driven to move relative to the fixed seat by utilizing the principle of the eccentric wheel, thereby achieving the clamping and loosening of cylindrical devices, which greatly improves the operating efficiency and reduces the operating difficulty.
[0022] In this embodiment, the fixed seat and the movable seat are respectively provided with through channels. Standard components for connection and guidance are provided in the channels, and springs are provided around the standard components. The standard components connect the fixed seat and the movable seat, and at the same time ensure the guiding accuracy when the two move relative to each other, so that the movable seat can move smoothly and accurately. The springs provide a certain degree of buffering and reset during the movement of the movable seat, ensuring the stability and reliability of the fixture, and reducing damage to the fixture and the workpiece caused by impacts and other factors. Attached Figure Description
[0023] Figure 1 This paper shows a schematic diagram of the overall structure of a machined positioning fixture for a broadcast transmitter accessory according to an embodiment of this application.
[0024] Figure 2 A cross-sectional view of a standard part and a spring according to an embodiment of this application is shown;
[0025] Figure 3 A schematic diagram of the base structure according to an embodiment of this application is shown;
[0026] Figure 4 A schematic diagram of the structure of the fixing base according to an embodiment of this application is shown;
[0027] Figure 5 A schematic diagram of the structure of the movable seat according to an embodiment of this application is shown;
[0028] Figure 6 An operational schematic diagram of an embodiment of this application is shown.
[0029] Explanation of reference numerals in the attached diagram: 1. Base; 2. Fixed base; 3. Movable base; 4. Hex socket screw; 5. Locating pin; 6. Handle; 7. Spring; 8. Standard part; 9. Fixed base screw hole; 10. Handle screw hole; 11. Circular hole. Detailed Implementation
[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.
[0031] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.
[0032] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.
[0033] like Figure 1 As shown in the figure, this application provides a machining positioning fixture for a broadcast transmitter accessory, including a base 1, a fixed seat 2, a movable seat 3, and a handle 6. The components cooperate with each other through a specific connection method to achieve precise positioning and stable clamping of the broadcast transmitter accessory, so as to facilitate machining operations.
[0034] Specifically, such as Figure 3As shown, the base 1 serves as the supporting foundation for the entire fixture, and it is equipped with a structure for mounting the fixing seat 2 and the handle 6, including a positioning pin 5, a fixing seat screw hole 9, a handle screw hole 10, and a circular hole 11. The base 1 can be made of high-strength, high-rigidity metal materials, such as cast iron or alloy steel, to ensure the stability and durability of the fixture during the machining process.
[0035] like Figure 1 and Figure 4 As shown, the mounting base 2 is installed on the base 1 using hex socket screws 4 and locating pins 5 perpendicular to the base 1. Specifically, the base 1 and the mounting base 2 have two corresponding locating pins 5 and two mounting base screw holes 9. During installation, the locating pins 5 are first inserted into the corresponding locating holes on the base 1 and the mounting base 2 for initial positioning. Then, the hex socket screws 4 are passed through the mounting base screw holes 9 and tightened onto the base 1 to firmly fix the mounting base 2 to the base 1. This installation method ensures the accurate installation position of the mounting base 2 on the base 1 and reduces installation errors.
[0036] The inner side of the fixing base 2 is provided with a hollowed-out concave semi-cylindrical structure. The purpose of this structure is to match the shape of the cylindrical device, so as to achieve partial clamping of the cylindrical device.
[0037] like Figure 1 , Figure 2 and Figure 5 As shown, the movable seat 3 is connected to the fixed seat 2 via a standard component 8 parallel to the base 1 and perpendicular to the fixed seat 2, and a spring 7. Two channels are correspondingly provided on the inner sides of the fixed seat 2 and the movable seat 3, passing through both. The standard component 8 passes through these two channels, connecting the fixed seat 2 and the movable seat 3, and also providing guidance when the movable seat 3 moves, ensuring the smoothness and accuracy of its movement. A spring 7 is circumferentially located on the standard component 8, with one end contacting the fixed seat 2 and the other end contacting the movable seat 3. When the movable seat 3 is subjected to external force and moves, the spring 7 is compressed or stretched, thus providing cushioning and resetting.
[0038] The inner side of the movable seat 3 is also provided with a hollowed-out concave semi-cylindrical structure corresponding to the inner side of the fixed seat 2. When the fixed seat 2 and the movable seat 3 are in close contact, the two concave semi-cylindrical structures will merge into a complete cylindrical structure for comprehensive clamping and fixing of cylindrical devices.
[0039] A circular hole 11 is provided on the base 1 at a position corresponding to the merged cylindrical structure. The circular hole 11 and the center of the cylindrical structure are located on the same vertical line, and the radius of the circular hole 11 is larger than the radius of the cylindrical structure. The purpose of this design is to ensure stable clamping of the cylindrical device while providing sufficient operating space for machining tools, so as to facilitate various machining operations on the cylindrical device, such as drilling and milling.
[0040] The handle 6 is mounted on the base 1 using a hex socket screw 4, and both the handle 6 and the base 1 have corresponding handle screw holes 10. During installation, the hex socket screw 4 is passed through the handle screw hole 10 and tightened onto the base 1, connecting the handle 6 to the base 1. At this point, the handle 6 is connected to the handle screw hole 10 via the hex socket screw 4, forming an eccentric wheel structure.
[0041] like Figure 6 As shown, during operation, when it is necessary to clamp a cylindrical device, rotating handle 6 causes the eccentric portion of handle 6 to push the movable seat 3 towards the fixed seat 2. This gradually clamps the cylindrical device between the concave semi-cylindrical structures on the fixed seat 2 and the movable seat 3. When it is necessary to release the cylindrical device, rotating handle 6 in the opposite direction causes the movable seat 3 to move away from the fixed seat 2 under the restoring action of spring 7, thus releasing the cylindrical device. This operation method is simple and convenient, and can greatly improve operating efficiency.
[0042] Specifically, first, place the cylindrical component to be processed on the concave semi-cylindrical structure inside the fixed base 2. Then, rotate the handle 6, using the principle of the eccentric wheel, to move the movable base 3 towards the fixed base 2 until the concave semi-cylindrical structures on the fixed base 2 and the movable base 3 merge into a complete cylindrical structure, firmly clamping the cylindrical component. After the cylindrical component is stably clamped, various machining operations can be performed on the cylindrical component through the circular hole 11 on the base 1 using the appropriate machining tools. After the machining operation is completed, rotate the handle 6 in the opposite direction. Under the action of the spring 7, the movable base 3 moves away from the fixed base 2, releasing the cylindrical component, and the processed component can be removed.
[0043] This broadcast transmitter accessory machining positioning fixture, through the aforementioned structure and connection method, achieves precise positioning and stable clamping of cylindrical components. It features convenient operation, high positioning accuracy, and stable clamping, effectively improving the machining quality and efficiency of broadcast transmitter accessories.
[0044] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0045] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A machined positioning fixture for a broadcast transmitter accessory, characterized in that, include: A base (1) and a fixed seat (2), a movable seat (3) and a handle (6) mounted on the base (1). The fixed seat (2) is mounted on the base (1) by a hexagonal screw (4) and a locating pin (5) perpendicular to the base (1). The movable seat (3) is connected to the fixed seat (2) by a standard part (8) parallel to the base (1) and a spring (7) perpendicular to the fixed seat (2). The handle (6) is mounted on the base (1) by a hexagonal screw (4). The movable seat (3) is mounted between the fixed seat (2) and the handle (6). The inner side of the fixed seat (2) and the inner side of the movable seat (3) are respectively provided with hollowed-out concave semi-cylindrical structures for fixing cylindrical devices.
2. The broadcast transmitter accessory machining positioning fixture as described in claim 1, characterized in that, The base (1) and the fixed seat (2) are provided with two corresponding positioning pins (5) and two fixed seat screw holes (9), and the handle (6) is provided with a corresponding handle screw hole (10).
3. The machined positioning fixture for a broadcast transmitter accessory as described in claim 1 or 2, characterized in that, When the fixed seat (2) and the movable seat (3) are in close contact, the concave semi-cylindrical structure on the inner side of the fixed seat (2) and the concave semi-cylindrical structure on the inner side of the movable seat (3) are combined into a cylindrical structure. A circular hole (11) is provided on the base (1) corresponding to the cylindrical structure. The circular hole (11) and the center of the cylindrical structure are located on the same vertical line. The radius of the circular hole (11) is greater than the radius of the cylindrical structure.
4. The broadcast transmitter accessory machining positioning fixture as described in claim 3, characterized in that, The handle (6) is connected to the handle screw hole (10) by an internal hex screw (4) to form an eccentric wheel structure.
5. The broadcast transmitter accessory machining positioning fixture as described in claim 3, characterized in that, Two channels are provided on the inner side of the fixed seat (2) and the inner side of the movable seat (3), respectively, located on both sides of the concave semi-cylindrical structure. The channels pass through the fixed seat (2) and the movable seat (3). The standard part (8) for connecting and guiding is provided in the channel. The spring (7) is provided circumferentially on the standard part (8).