A positioning fixture for milling and turning of a communication filter

Abstract

This application relates to a positioning fixture for milling and turning of a communication filter, belonging to the field of clamping fixtures for milling and turning. It includes a support plate, a first clamping member, and a second clamping member, which are arranged mirror images of each other. The first and second clamping members each include a fixed outer ring with an arc-shaped notch, a fixing hole, a first clamping block, a second clamping block, a first limiting groove, a second limiting groove, a connecting spring, a guide assembly, and an adjustment assembly. The adjustment assembly of this communication filter milling and turning positioning fixture facilitates adjustment of the relative distance between the first and second clamping blocks, and the guide assembly ensures the stability of the first and second clamping blocks when the distance changes. The relative distance between the first and second clamping blocks changes about the central axis of the fixed outer ring, thereby facilitating the centering and clamping of the filter using the first and second clamping members.

Description

Technical Field

[0001] This application relates to the technical field of clamping fixtures for milling and turning, and in particular to a positioning fixture for milling and turning of a communication filter. Background Technology

[0002] The related technology, with publication number CN216781157U, discloses a clamping fixture for milling and turning communication filter components. This fixture comprises a support plate, a first cylinder box, a transverse clamping plate, a second cylinder box, a longitudinal clamping plate, a baffle, an electromagnetic block, a gearbox, a motor box, a groove, a slide rod, and a controller. The support plate has a clamping area in the middle. The first cylinder box is located on the left side of the clamping area, with a transverse clamping plate on it. Second cylinder boxes are located on the front and rear sides of the clamping area, with longitudinal clamping plates on them. A baffle is located on the right side of the clamping area, with a groove on its left side containing a slide rod connected to the electromagnetic block. The slide rod is also connected to the gearbox on the right side of the baffle. A controller is located on the right side of the baffle. This invention, by incorporating a longitudinal clamping plate, a transverse clamping plate, an electromagnetic block, and a controller on the support plate, enables intelligent clamping operations and has high practicality.

[0003] Regarding the communication filter milling and turning positioning fixture in the above-mentioned technology, due to its inherent design characteristics, the inventors have discovered that although clamping can be achieved through longitudinal and transverse clamping plates, it is not convenient to center the filter during the clamping process, thereby reducing the machining accuracy of the filter by the milling machine tool. Utility Model Content

[0004] To address the limitations of current milling and turning positioning fixtures for communication filters due to their inherent design features, the inventors have discovered that while clamping can be achieved using longitudinal and transverse clamping plates, it is inconvenient to center the filter during clamping, thereby reducing the machining accuracy of the filter by the milling cutter. This application provides a milling and turning positioning fixture for communication filters.

[0005] The communication filter milling and turning positioning fixture provided in this application adopts the following technical solution: it includes a support plate, a first clamping member disposed on one side of the support plate, and a second clamping member disposed on the other side of the support plate, wherein the first clamping member and the second clamping member are arranged in a mirror image of each other;

[0006] The first clamping member and the second clamping member respectively include a fixed outer ring with an arc-shaped notch, a through fixing hole uniformly arranged on the fixed outer ring, a first clamping block arranged in the inner cavity of the fixed outer ring with the same curvature, a second clamping block arranged in the inner cavity of the fixed outer ring and mirror-arranged with the first clamping block, a first limiting groove arranged at the opening of the first clamping block relative to the fixed outer ring, a second limiting groove arranged at the opening of the second clamping block relative to the fixed outer ring, a connecting spring arranged between the first clamping block and the second clamping block, a guide component arranged between the outer periphery of the first clamping block and the second clamping block and the fixed outer ring, and an adjustment component for adjusting the first clamping block and the second clamping block and arranged on the central axis of the fixed outer ring. The fixing hole is connected to the support plate by a fixing screw.

[0007] By adopting the above technical solution, the adjustment component facilitates the adjustment of the relative distance between the first clamping block and the second clamping block, and the guide component ensures the stability of the first clamping block and the second clamping block when the distance changes. The connecting spring effectively ensures the tension of the first limiting groove and the second limiting groove when clamping the filter. During this process, the relative distance between the first clamping block and the second clamping block changes with respect to the central axis of the fixed outer ring, thereby facilitating the centering and clamping of the filter through the first clamping component and the second clamping component.

[0008] As a preferred embodiment, one end of the connecting spring is fixedly connected to the inner side of the first clamping block, and the other end of the connecting spring is fixedly connected to the inner side of the second clamping block.

[0009] By adopting the above technical solution, the connecting spring facilitates the clamping tension of the first and second clamping blocks and also facilitates their reset. One end of the connecting spring is fixed to the inner side of the first clamping block, and the other end is fixed to the inner side of the second clamping block. The function of the connecting spring is to maintain appropriate tension between the first and second clamping blocks, ensuring that they can tightly clamp the filter that needs to be fixed. Furthermore, when the filter is removed, the connecting spring allows the first and second clamping blocks to automatically reset to their initial state for easy reuse.

[0010] As a preferred embodiment, the guide assembly includes annular grooves respectively disposed on the outer periphery of the first clamping block and the second clamping block, and a limiting bolt passing through the fixed outer ring and connected to the annular groove. The limiting bolt is fixed to the fixed outer ring by snap-fit ​​or threaded connection. One end of the limiting bolt relative to the annular groove is set to be spherical, and the annular groove is tangent to the arc surface of the limiting bolt to which the spherical shape belongs.

[0011] By adopting the above technical solution, one end of the limiting bolt is designed to be spherical and tangent to the arc surface of the annular groove. It is fixed via snap-fit ​​or threaded connection, ensuring both stability and flexibility of the connection. The tangential contact between the spherical end of the limiting bolt and the arc surface of the annular groove not only achieves precise positioning but also allows for a certain degree of axial and radial fine-tuning, increasing the adaptability and stability of the component. Overall, this design integrates guiding, fixing, and fine-tuning functions, significantly improving the flexibility and accuracy of the first and second clamping blocks in different application scenarios.

[0012] As a preferred embodiment, the adjustment assembly includes a connecting shaft slidably connected to the fixed outer ring, a guide hole on the fixed outer ring adapted to the connecting shaft, a wedge-shaped post fixedly disposed on the connecting shaft relative to the inner cavity of the fixed outer ring, wedge-shaped grooves respectively disposed on the first clamping block and the second clamping block adapted to the wedge-shaped post, an electric telescopic shaft connected to the other end of the connecting shaft, and a fixing seat for fixing the electric telescopic shaft.

[0013] By adopting the above technical solution, the connecting shaft slides within the fixed outer ring and is guided horizontally through the guide hole. A wedge-shaped post is fixedly mounted on the connecting shaft, engaging with the wedge-shaped grooves of the first and second clamping blocks respectively. When the connecting shaft moves the wedge-shaped post, it contacts the wedge-shaped surfaces of the first and second clamping blocks, causing them to rotate around the wedge-shaped post as their central axis. This, in turn, causes the first and second clamping blocks to clamp or release the filter to be clamped. The connecting spring provides clamping force when it opens, while the annular groove and limiting bolt restrict the rotation direction of the first and second clamping blocks, ensuring stable clamping. An electric telescopic shaft is connected to the connecting shaft, and its telescopic action controls the application and release of the clamping force.

[0014] As a preferred embodiment, the electric telescopic shaft is fixedly connected to the fixed base, and the telescopic end of the electric telescopic shaft is connected to the connecting shaft.

[0015] By adopting the above technical solution, the connecting shaft moves horizontally through the extension and retraction of the electric telescopic shaft, and then the first clamping block and the second clamping block rotate relative to each other through the wedge engagement to achieve clamping or loosening action.

[0016] As a preferred embodiment, the guide hole is configured to be through-hole, and the guide hole is coaxial with the central axis of the fixed outer ring.

[0017] By adopting the above technical solution, the guide hole is coaxially set with the central axis of the fixed outer ring. This design helps to ensure the precise centering of the workpiece during the centering process, effectively reduces the positioning error and wobbling during processing, and improves the coaxiality of the workpiece and the overall assembly accuracy.

[0018] In summary, this application includes the following beneficial technical effects:

[0019] 1. The support plate primarily provides a stable foundation for the entire tooling, ensuring stability during processing. The first and second clamping components are mirror-symmetrically arranged to ensure symmetrical clamping of the filter. The fixing holes on the outer ring are connected to the support plate with screws, making the clamping components firmly fixed.

[0020] 2. The first and second clamping blocks are kept in contact with the inner cavity of the fixed outer ring by a connecting spring, ensuring that the filter can obtain appropriate tension during clamping and preventing slippage;

[0021] 3. The first and second limiting grooves work together to ensure that the filter is correctly aligned when clamped, and the guide component ensures the stability of the first and second clamping blocks when the distance changes;

[0022] 4. The adjustment component can adjust the distance between the first clamping block and the second clamping block according to the size of the filter, so as to clamp filters of different sizes. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the milling and turning positioning fixture for the communication filter of this application;

[0024] Figure 2 This is a schematic diagram of the structure of the first clamping member and the second clamping member in the milling and turning positioning fixture for the communication filter of this application;

[0025] Figure 3 This is a schematic diagram of the guide component structure in the milling and turning positioning fixture for the communication filter of this application;

[0026] Figure 4 This is the positioning fixture for milling and turning of the communication filter in this application. Figure 3 A structural schematic diagram of the enlarged view at point A;

[0027] Figure 5 This is a structural schematic diagram of the assembly between the first clamping component, the second clamping component, and the adjustment assembly in the milling and turning positioning fixture for the communication filter of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Support plate; 21. First clamping member; 22. Second clamping member; 3. Fixed outer ring; 31. Fixed hole; 41. First clamping block; 411. First limiting groove; 42. Second clamping block; 421. Second limiting groove; 5. Connecting spring; 6. Limiting bolt; 61. Annular groove; 7. Connecting shaft; 71. Wedge-shaped column; 711. Wedge-shaped groove; 8. Electric telescopic shaft; 811. Fixed seat. Detailed Implementation

[0029] The present application will be further described in detail below with reference to the accompanying drawings.

[0030] Please refer to details. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This application discloses a positioning fixture for milling and turning of a communication filter. It includes a support plate 1, a first clamping member 21 disposed on one side of the support plate 1, and a second clamping member 22 disposed on the other side of the support plate 1. The first clamping member 21 and the second clamping member 22 are arranged in a mirror image of each other.

[0031] The first clamping member 21 and the second clamping member 22 respectively include a fixed outer ring 3 with an arc-shaped notch, a through fixing hole 31 uniformly arranged on the fixed outer ring 3, a first clamping block 41 arranged in the inner cavity of the fixed outer ring 3 with the same curvature, a second clamping block 42 arranged in the inner cavity of the fixed outer ring 3 and mirrored with the first clamping block 41, a first limiting groove 411 arranged at the opening of the first clamping block 41 relative to the fixed outer ring 3, a second limiting groove 421 arranged at the opening of the second clamping block 42 relative to the fixed outer ring 3, a connecting spring 5 arranged between the first clamping block 41 and the second clamping block 42, a guide component arranged between the outer periphery of the first clamping block 41 and the second clamping block 42 and the fixed outer ring 3, and an adjustment component for adjusting the first clamping block 41 and the second clamping block 42 and arranged on the central axis of the fixed outer ring 3. The fixing hole 31 is connected to the support plate 1 by a fixing screw. In this utility model, the support plate 1 mainly provides a stable foundation support for the entire tooling to ensure stability during the processing. The first clamping member 21 and the second clamping member 22 are mirror-symmetrically arranged to ensure symmetrical clamping of the filter. The fixing hole 31 on the fixing outer ring 3 is connected to the support plate 1 by screws, so that the clamping members are firmly fixed. The first clamping block 41 and the second clamping block 42 are kept in contact with the inner cavity of the fixing outer ring 3 by the connecting spring 5, ensuring that the filter can obtain appropriate tension during clamping and preventing slippage. The first limiting groove 411 and the second limiting groove 421 work together to ensure that the filter can be correctly aligned during clamping, and the guide component ensures the stability of the first clamping block 41 and the second clamping block 42 when the distance changes. The adjustment component can adjust the distance between the first clamping block 41 and the second clamping block 42 according to the size of the filter, so as to clamp filters of different sizes. The adjustment component facilitates the adjustment of the relative distance between the first clamping block 41 and the second clamping block 42, and the guide component ensures the stability of the first clamping block 41 and the second clamping block 42 when the distance changes. The connecting spring 5 effectively ensures the tension of the first limiting groove 411 and the second limiting groove 421 when clamping the filter. During this process, the relative distance between the first clamping block 41 and the second clamping block 42 changes with respect to the central axis of the fixed outer ring 3, so as to facilitate the centering and clamping of the filter by the first clamping member 21 and the second clamping member 22.

[0032] Please refer to details. Figure 1 and Figure 2One end of the connecting spring 5 is fixedly connected to the inner side of the first clamping block 41, and the other end of the connecting spring 5 is fixedly connected to the inner side of the second clamping block 42. The connecting spring 5 facilitates the clamping tension of the first clamping block 41 and the second clamping block 42, and also facilitates the reset of the first clamping block 41 and the second clamping block 42. One end of the connecting spring 5 is fixed to the inner side of the first clamping block 41, and the other end is fixed to the inner side of the second clamping block 42. The function of the connecting spring 5 is to maintain appropriate tension between the first clamping block 41 and the second clamping block 42, ensuring that they can tightly clamp the filter that needs to be fixed. In addition, when the clamped filter is removed, the connecting spring 5 can automatically reset the first clamping block 41 and the second clamping block 42 to their initial state for easy reuse next time. The overall working principle is as follows: when clamping the filter, the first clamping block 41 and the second clamping block 42 overcome the elastic force of the connecting spring 5 and move closer to each other to clamp the filter; when the filter is removed, the elastic force of the connecting spring 5 pushes the first clamping block 41 and the second clamping block 42 to reset, restore the original state, and prepare for the next use.

[0033] Please refer to details. Figure 3 and Figure 4 The guiding component includes annular grooves 61 respectively disposed on the outer periphery of the first clamping block 41 and the second clamping block 42, and a limiting bolt 6 passing through the fixed outer ring 3 and connecting to the annular groove 61. The limiting bolt 6 is fixed to the fixed outer ring 3 by snap-fit ​​or threaded connection. One end of the limiting bolt 6 relative to the annular groove 61 is set as spherical, and the annular groove 61 is tangent to the arc surface of the spherical limiting bolt 6. The spherical end of the limiting bolt 6 is designed to be tangent to the arc surface of the annular groove 61 and is fixed by snap-fit ​​or threaded connection to ensure the stability and flexibility of the connection. In terms of working principle, the tangential contact between the spherical end of the limiting bolt 6 and the arc surface of the annular groove 61 not only achieves precise positioning, but also allows for a certain degree of axial and radial fine adjustment, increasing the adaptability and stability of the component. Overall, this design integrates guiding, fixing and fine adjustment functions, significantly improving the flexibility and accuracy of the first clamping block 41 and the second clamping block 42 in different application scenarios.

[0034] Please refer to details. Figure 3 , Figure 4 and Figure 5The adjustment assembly includes a connecting shaft 7 slidably connected to the fixed outer ring 3, a guide hole on the fixed outer ring 3 adapted to the connecting shaft 7, a wedge-shaped post 71 fixedly disposed on the connecting shaft 7 relative to the inner cavity of the fixed outer ring 3, wedge-shaped grooves 711 respectively disposed on the first clamping block 41 and the second clamping block 42 adapted to the wedge-shaped post 71, an electric telescopic shaft 8 connected to the other end of the connecting shaft 7, and a fixing seat 811 for fixing the electric telescopic shaft 8. The connecting shaft 7 slides within the fixed outer ring 3 and is guided to move horizontally through the guide hole. The wedge-shaped post 71 is fixedly disposed on the connecting shaft 7 and cooperates with the wedge-shaped grooves 711 of the first clamping block 41 and the second clamping block 42 respectively. When the connecting shaft 7 drives the wedge-shaped post 71 to move, the wedge-shaped post 71 contacts the wedge-shaped surfaces of the first clamping block 41 and the second clamping block 42 respectively, causing the two to rotate about the wedge-shaped post 71 as the central axis, thereby driving the first clamping block 41 and the second clamping block 42 to clamp or release the filter to be clamped. When the connecting spring 5 is open, it provides clamping force. The annular groove 61 and the limiting bolt 6 restrict the rotation direction of the first clamping block 41 and the second clamping block 42, ensuring stable clamping. The electric telescopic shaft 8 is connected to the connecting shaft 7. Through its telescopic action, it controls the application and release of clamping force. The overall working principle is that the telescopic shaft 8 drives the connecting shaft 7 to move horizontally, and then the wedge-shaped fit causes the first clamping block 41 and the second clamping block 42 to rotate relative to each other, thereby achieving clamping or releasing action.

[0035] Please refer to details. Figure 1 and Figure 5 The electric telescopic shaft 8 is fixedly connected to the fixed base 811. The telescopic end of the electric telescopic shaft 8 is connected to the connecting shaft 7. The telescopic shaft 8 drives the connecting shaft 7 to move horizontally, and then the wedge-shaped fit causes the first clamping block 41 and the second clamping block 42 to rotate relative to each other to achieve clamping or loosening action.

[0036] Please refer to details. Figure 4 and Figure 5 The guide hole 32 is designed to be through-hole and is coaxial with the central axis of the fixed outer ring 3. This design helps to ensure the precise centering of the workpiece during the centering process, effectively reduces the positioning error and shaking during processing, and improves the coaxiality of the workpiece and the overall assembly accuracy.

[0037] The implementation principle of the positioning fixture for milling and turning of a communication filter according to an embodiment of this application is as follows: the extension and retraction of the electric telescopic shaft 8 drives the connecting shaft 7 to move horizontally, thereby causing the first clamping block 41 and the second clamping block 42 to rotate relative to each other through wedge engagement, thereby achieving clamping or loosening action. By having the spherical end of the limiting bolt 6 tangentially contact the arc surface of the annular groove 61, not only is precise positioning achieved, but also a certain degree of axial and radial fine adjustment is allowed. When clamping the filter, the first clamping block 41 and the second clamping block 42 overcome the elastic force of the connecting spring 5 and move closer to each other to clamp the filter; when the filter is removed, the elastic force of the connecting spring 5 pushes the first clamping block 41 and the second clamping block 42 to reset, restore the original state, and prepare for the next use.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A positioning fixture for milling and turning of a communication filter, characterized in that: It includes a support plate (1), a first clamping member (21) disposed on one side of the support plate (1), and a second clamping member (22) disposed on the other side of the support plate (1), wherein the first clamping member (21) and the second clamping member (22) are arranged in a mirror image of each other; The first clamping member (21) and the second clamping member (22) respectively include a fixed outer ring (3) with an arc-shaped notch, a through-hole (31) uniformly arranged on the fixed outer ring (3), a first clamping block (41) arranged in the inner cavity of the fixed outer ring (3) with the same curvature, a second clamping block (42) arranged in the inner cavity of the fixed outer ring (3) and mirrored with the first clamping block (41), a first limiting groove (411) arranged at the opening of the first clamping block (41) relative to the fixed outer ring (3), and a second clamping block (42) arranged in the second clamping member (22). The clamping block (42) has a second limiting groove (421) at the opening of the fixed outer ring (3), a connecting spring (5) between the first clamping block (41) and the second clamping block (42), a guide assembly between the outer periphery of the first clamping block (41) and the second clamping block (42) and the fixed outer ring (3), and an adjustment assembly for adjusting the first clamping block (41) and the second clamping block (42) and located on the central axis of the fixed outer ring (3). The fixing hole (31) is connected to the support plate (1) by a fixing screw.

2. The milling and turning positioning fixture for a communication filter according to claim 1, characterized in that: One end of the connecting spring (5) is fixedly connected to the inner side of the first clamping block (41), and the other end of the connecting spring (5) is fixedly connected to the inner side of the second clamping block (42).

3. The milling and turning positioning fixture for a communication filter according to claim 2, characterized in that: The guide assembly includes an annular groove (61) respectively disposed on the outer periphery of the first clamping block (41) and the second clamping block (42) and a limiting bolt (6) that passes through the fixed outer ring (3) and connects to the annular groove (61). The limiting bolt (6) is fixed to the fixed outer ring (3) by snap-fit ​​or threaded connection.

4. The milling and turning positioning fixture for a communication filter according to claim 3, characterized in that: The end of the limiting bolt (6) relative to the annular groove (61) is spherical, and the annular groove (61) is tangent to the arc surface of the spherical limiting bolt (6).

5. The milling and turning positioning fixture for a communication filter according to claim 4, characterized in that: The adjustment assembly includes a connecting shaft (7) slidably connected to the fixed outer ring (3), a guide hole on the fixed outer ring (3) adapted to the connecting shaft (7), a wedge-shaped post (71) fixedly disposed on the connecting shaft (7) relative to the inner cavity of the fixed outer ring (3), a wedge-shaped groove (711) on the first clamping block (41) and the second clamping block (42) respectively adapted to the wedge-shaped post (71), an electric telescopic shaft (8) connected to the other end of the connecting shaft (7), and a fixing seat (811) for fixing the electric telescopic shaft (8).

6. The milling and turning positioning fixture for a communication filter according to claim 5, characterized in that: The electric telescopic shaft (8) is fixedly connected to the fixed base (811), and the telescopic end of the electric telescopic shaft (8) is connected to the connecting shaft (7).

7. The milling and turning positioning fixture for a communication filter according to claim 6, characterized in that: The guide hole (32) is configured to be through, and the guide hole (32) is coaxial with the central axis of the fixed outer ring (3).

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