Antenna waveguide tube machining clamp

Abstract

The utility model relates to the technical field of waveguide tubes, and particularly discloses an antenna waveguide tube machining clamp. Comprising a base, a clamping mechanism and a bearing seat, wherein the clamping mechanism and the bearing seat are arranged on the base; the clamping mechanism comprises a mounting seat arranged on the base; the mounting seat is provided with a support arm and a clamping cylinder arranged on the support arm, and the tail end of a piston rod of the clamping cylinder is provided with a clamping block which can abut against the waveguide tube; and the clamping block is also provided with a limiting pad for limiting the waveguide tube to rotate. By means of friction force generated between the limiting pads on the clamping blocks and the waveguide tube, rotation of the waveguide tube can be effectively limited, and displacement errors caused by unstable clamping in the machining process are prevented.

Description

An antenna waveguide machining fixture Technical Field

[0001] This utility model relates to the field of waveguide technology, and in particular to an antenna waveguide processing fixture. Background Technology

[0002] A waveguide is a metal conduit used to transmit electromagnetic waves, widely applied in high-frequency communication systems such as radar, satellite communication, and radio navigation. Due to the stringent requirements on signal transmission characteristics imposed by the internal structure of waveguides, their manufacturing precision is extremely high, typically at the micrometer level. Furthermore, waveguides are usually made of highly conductive metals (such as copper and aluminum alloys), which are prone to deformation or damage during high-precision machining due to uneven stress. Therefore, the appropriate clamping method directly impacts machining accuracy and product yield during waveguide manufacturing.

[0003] Existing waveguide clamping technologies primarily employ traditional mechanical clamping methods, such as bolt tightening, spring clamping, or pneumatic clamping. While providing sufficient clamping force, traditional fixtures often struggle to ensure uniform force application to the waveguide, potentially leading to minute displacements during machining and affecting processing accuracy. This is particularly problematic in high-speed drilling and precision cutting processes, where unstable clamping can cause vibrations, impacting the waveguide's surface quality and shape accuracy. Furthermore, due to the thin walls of waveguides, excessive clamping force can cause localized overload, resulting in indentations or even deformation of the waveguide wall, affecting final assembly accuracy and electromagnetic wave transmission performance. Different specifications and shapes of waveguides (such as rectangular, circular, and irregular waveguides) require different clamping methods during machining, but existing fixtures are typically designed for single specifications, offering poor adaptability and hindering flexible production requirements. During welding, cutting, and drilling processes, the waveguide may experience minute displacements due to thermal expansion or cutting forces, and existing clamping mechanisms often lack specific anti-slip and anti-rotation designs, leading to decreased machining accuracy.

[0004] The patent "Jig for manufacturing radar slot waveguide antenna" (authorization announcement number CN204976102U, hereinafter referred to as prior art 1) discloses a jig for manufacturing waveguide antennas. The main technical principle of prior art 1 is that a boss surface is provided on the fixed block to determine the relative position of the slot in the waveguide. The waveguide and the fixture are relatively fixed during processing. The relative position of the slot before and after moving the fixture is based on this boss surface, thereby eliminating the influence of moving the fixture on the processing accuracy. However, existing waveguides are easily damaged during production, or the waveguides may be too long, resulting in insufficient clamping force during clamping and an inability to adapt to the length of the waveguide, which leads to displacement or processing errors during processing. Summary of the Invention

[0005] In view of this, the present invention provides an antenna waveguide processing fixture to solve the problem that the existing fixtures do not provide sufficient clamping force for the waveguide, resulting in displacement errors in the waveguide due to unstable clamping during processing.

[0006] This utility model provides an antenna waveguide processing fixture, including a base and a clamping mechanism and a receiving seat disposed on the base. The receiving seat is used to place the waveguide. The clamping mechanism includes a mounting seat disposed on the base. The mounting seat is provided with a support arm and a clamping cylinder disposed on the support arm. The piston rod end of the clamping cylinder is provided with a clamping block that can abut against the waveguide. The clamping block is also provided with a limiting pad to restrict the rotation of the waveguide.

[0007] Preferably, the clamping mechanism includes at least a pair of first clamping mechanisms and second clamping mechanisms arranged opposite to each other; the first clamping mechanism and the second clamping mechanism are disposed at both ends of the base.

[0008] Preferably, the first clamping mechanism and the second clamping mechanism are further provided with through holes for passing through the waveguide; the through holes are provided on the mounting bases of the first clamping mechanism and the second clamping mechanism.

[0009] Preferably, the receiving seat includes at least a pair of first receiving seats and second receiving seats disposed on the base; wherein the inner shape of the receiving groove of the receiving seat is arc-shaped, "U"-shaped or "V"-shaped.

[0010] Preferably, the base is further provided with a plurality of support seats on both sides of the waveguide installation path; the support seats are further provided with limiting blocks that abut against the waveguide.

[0011] Preferably, the clamping mechanism further includes a connector; the connector includes a guide rod and a connecting block disposed at the end of the guide rod; the guide rod is movable based on a sleeve disposed on the support arm; the end of the piston rod of the clamping cylinder is connected to the top of the connecting block; the clamping block is disposed at the bottom of the connecting block.

[0012] Preferably, the clamping block is provided with a groove and an abutment post disposed in the groove; the limiting pad can be installed through the abutment post.

[0013] Preferably, the clamping block extends through the piston rod of the clamping cylinder and moves toward the waveguide, the abutting post abuts against the waveguide, and the limiting pad generates friction with the waveguide and restricts the rotation of the waveguide.

[0014] Preferably, the base is further provided with a third clamping mechanism on both sides of the waveguide installation path.

[0015] Preferably, the base is provided with a plurality of elongated mounting holes spaced apart.

[0016] The antenna waveguide processing fixture provided by this utility model has the following beneficial effects:

[0017] In this invention, a support base is used to ensure the stable placement of the waveguide during processing, thereby guaranteeing processing accuracy. The support base provides a reliable support platform for the waveguide, ensuring that it does not move unnecessarily during processing. The frictional force generated between the limiting pad on the clamping block and the waveguide effectively restricts the rotation of the waveguide, preventing displacement errors caused by unstable clamping during processing. This ensures the stability of the waveguide during processing, thereby improving processing accuracy and reliability. The clamping mechanism is designed with cylinder drive technology. The cylinder drives the clamping block to apply force, allowing the waveguide to bear pressure evenly during processing. This uniform force design avoids deformation or damage to the waveguide that may be caused by single-point clamping. In addition, the cylinder structure design of the clamping mechanism allows it to adapt to waveguides of different diameters or shapes, greatly improving the applicability and flexibility of the fixture. This design not only improves processing efficiency but also reduces production costs by reducing waveguide damage caused by improper clamping. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of this utility model.

[0019] Figure 1 is a schematic diagram of an antenna waveguide fabrication fixture;

[0020] Figure 2 is a schematic diagram of an antenna waveguide machining fixture from another angle;

[0021] Figure 3 is a three-dimensional structural diagram of an antenna waveguide fabrication fixture;

[0022] Figure 4 is a schematic diagram of the first clamping mechanism;

[0023] Figure 5 is a partial structural diagram of the clamping block;

[0024] Figure 6 is a structural schematic diagram of the multi-functional seat;

[0025] Parts and their numbers in the diagram:

[0026] 100 - Base;

[0027] 210-First clamping mechanism, 220-Second clamping mechanism, 230-Third clamping mechanism, 240-Mounting base, 241-Through hole, 242-Support arm, 243-Sleeve, 244-Clamping cylinder, 250-Connector, 251-Guide rod, 252-Connecting block, 260-Clamping block, 261-Groove, 262-Abutting post, 270-Limiting pad;

[0028] 300 - Receiver seat, 310 - Receiver groove;

[0029] 400 - Support base, 410 - Limit block;

[0030] 500-Multifunctional seat, 510-Base, 511-Drive cylinder, 512-Abutment block;

[0031] 600-waveguide. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, in this document, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. 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 orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application 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. Furthermore, 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 limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Unless otherwise specified, embodiments of the present invention and the various features thereof can be combined with each other, all within the protection scope of the present invention.

[0033] Example 1

[0034] Please refer to Figures 1 and 3. This embodiment of the present invention provides an antenna waveguide processing fixture, including a base 100 and a clamping mechanism and a receiving seat 300 disposed on the base 100. The receiving seat 300 is used to place the waveguide 600. The clamping mechanism includes a mounting base 240 disposed on the base 100. The mounting base 240 is provided with a support arm 242 and a clamping cylinder 244 disposed on the support arm 242. The piston rod end of the clamping cylinder 244 is provided with a clamping block 260 that can abut against the waveguide 600. The clamping block 260 is also provided with a limiting pad 270 to restrict the rotation of the waveguide 600. After the waveguide 600 is placed on the receiving seat 300, the piston rod is driven by the clamping cylinder 244 to move towards the waveguide 600, so that the limiting pad 270 abuts against the waveguide 600, clamping the waveguide 600. This addresses the problem that existing fixtures do not provide sufficient clamping force for the waveguide 600, which causes instability during the processing of the waveguide 600, resulting in displacement and errors.

[0035] Furthermore, the clamping mechanism includes at least a pair of opposing first clamping mechanisms 210 and second clamping mechanisms 220; the first clamping mechanism 210 and the second clamping mechanism 220 are disposed at both ends of the base 100. During processing, at least one clamping mechanism is required to fix the waveguide 600, but a single clamping mechanism may cause uneven force on the waveguide 600 during processing, affecting processing accuracy. Therefore, by providing a pair of opposing first clamping mechanisms 210 and second clamping mechanisms 220, the waveguide 600 can be clamped simultaneously from both ends, ensuring uniform force on the waveguide 600 during processing and improving processing accuracy. At the same time, this design also increases the stability and reliability of the fixture, making the waveguide 600 less prone to displacement and errors during processing, further ensuring processing quality.

[0036] Furthermore, the base 100 is provided with a third clamping mechanism 230 on both sides of the waveguide 600 installation path. The base 100 is also provided with a plurality of support seats 400 on both sides of the waveguide 600 installation path; the support seats 400 are also provided with limiting blocks 410 that abut against the waveguide 600.

[0037] Since the waveguide 600 may be quite long, if clamping mechanisms are only installed at both ends of the base 100, the waveguide 600 may lack sufficient rigidity or the clamping may not be secure enough, leading to bending or deformation during processing and affecting processing accuracy. Therefore, a third clamping mechanism 230 and several support seats 400 can be added to both sides of the waveguide 600 mounting path on the base 100, or adapted to the length of the waveguide 600. This effectively increases the rigidity of the waveguide 600 and the clamping force, preventing deformation due to uneven force during processing. The third clamping mechanism 230 is reasonably designed and appropriately positioned, ensuring that the waveguide 600 is subjected to uniform force along its entire length, further improving processing stability and accuracy. Simultaneously, the addition of the third clamping mechanism 230 also enhances the overall structural strength of the fixture, allowing it to better adapt to the processing requirements of waveguides 600 of different lengths and specifications.

[0038] Further, referring to Figure 4, the first clamping mechanism 210 and the second clamping mechanism 220 are provided with through holes 241, which are disposed on the mounting base 240 of the clamping mechanism. The function of these through holes 241 is to allow the waveguide 600 to pass smoothly through the clamping mechanism, thereby enabling the installation and fixation of a longer waveguide 600. Through this design, the waveguide 600 can freely pass through the clamping mechanism without being restricted by the clamping mechanism itself, thus ensuring that the waveguide 600 can be set to any length according to actual needs. This design not only improves the flexibility of waveguide 600 installation but also ensures that the clamping mechanism does not affect the length of the waveguide 600 when fixing it, thereby ensuring the stability and reliability of the entire system.

[0039] Preferably, the receiving seat 300 includes at least a pair of first receiving seats 300 and second receiving seats 300 disposed on the base 100; wherein the inner shape of the receiving groove 310 of the receiving seat 300 is arc-shaped, "U"-shaped, or "V"-shaped. This arrangement can better adapt to the shape of the waveguide 600 and reduce friction and damage generated during clamping. The arc-shaped, "U"-shaped, or "V"-shaped receiving groove 310 design allows the waveguide 600 to be stably placed in the receiving seat 300, while avoiding clamping instability or damage caused by shape mismatch. This design not only improves the stability of clamping but also ensures the safety of the waveguide 600 during processing, further improving the overall processing quality and efficiency.

[0040] Preferably, the clamping mechanism further includes a connector 250; the connector 250 includes a guide rod 251 and a connecting block 252 disposed at the end of the guide rod 251; the guide rod 251 can move based on the sleeve 243 disposed on the support arm 242; the end of the piston rod of the clamping cylinder 244 is connected to the top of the connecting block 252; the clamping block 260 is disposed at the bottom of the connecting block 252. The connector 250 can realize flexible connection and transmission between the clamping cylinder 244 and the clamping block 260. The movable design of the guide rod 251 within the sleeve 243 allows the connector 250 to be adjusted according to actual needs, thereby ensuring that the clamping block 260 can accurately clamp the waveguide 600. The connecting block 252, as a bridge between the guide rod 251 and the clamping block 260, not only bears the force transmitted by the clamping cylinder 244, but also ensures the uniform distribution of clamping force, avoiding damage to the waveguide 600 due to uneven force. This design not only improves the precision of clamping, but also enhances the stability and durability of the entire clamping mechanism, providing more reliable support for the machining of waveguide 600.

[0041] Preferably, as shown in Figure 5, the clamping block 260 is provided with a groove 261 and an abutment post 262 disposed within the groove 261; the limiting pad 270 can be installed through the abutment post 262. The groove 261 and the abutment post 262 are used to install the limiting pad 270, the limiting pad 270 is installed in the groove 261 through the abutment post 262, and the abutment post 262 also protrudes from the limiting pad 270. In use, the abutment post 262 abuts against the waveguide 600 to achieve clamping; the limiting pad 270 also contacts the waveguide 600 to restrict the rotation of the waveguide 600.

[0042] The clamping block 260 extends through the piston rod of the clamping cylinder 244 and moves toward the waveguide 600. The abutting post 262 abuts against the waveguide 600. The limiting pad 270 generates friction with the waveguide 600 and restricts the rotation of the waveguide 600.

[0043] Furthermore, the base 100 is provided with a plurality of elongated mounting holes at intervals, through which support blocks can be set at intervals on the base 100 and installed at the expected positions.

[0044] Further, referring to Figures 1, 2, and 6, the base 100 is also provided with a multi-functional seat 500. The multi-functional seat 500 includes a base 510 and a drive cylinder 511 disposed on the base 510; the piston rod of the drive cylinder 511 has an abutment block 512 at its end. The multi-functional seat 500 can assist the clamping mechanism in applying clamping force to the waveguide 600, or restrict the rotation of the waveguide 600, and can also increase the stability of the waveguide 600 during processing. In use, the base 510 is disposed on the side of the waveguide 600, and the piston rod is driven by the drive cylinder 511 to move closer to the waveguide 600, so that the abutment block 512 contacts the waveguide 600, thereby achieving stable clamping of the waveguide 600. Meanwhile, the piston rod stroke of the drive cylinder 511 is adjustable, allowing for flexible adjustment of the contact force between the abutment block 512 and the waveguide 600 according to different waveguide sizes and processing requirements, ensuring secure clamping without damaging the surface of the waveguide 600. Furthermore, the design of the multi-functional seat 500 makes the operation of the clamping mechanism more convenient and improves processing efficiency.

[0045] The abutment block 512, abutment post 262, and limiting pad 270 are all components with a certain limiting capacity that prevent hard friction with the waveguide 600. The abutment block 512 is made of a wear-resistant and elastic material, such as rubber or silicone, to ensure that it does not scratch or damage the surface of the waveguide 600 during clamping. The abutment post 262 is designed to be cylindrical or conical, and its surface is also specially treated to increase friction when in contact with the waveguide 600 while avoiding hard friction. The limiting pad 270 is located between the abutment block 512 and the waveguide 600, serving as a buffer and limiting element, further protecting the waveguide 600 from damage. This design not only improves the stability of the waveguide 600 during processing but also extends its service life, ensuring the stability and reliability of processing quality.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fabrication fixture for an antenna waveguide, comprising a base (100) and a clamping mechanism and a receiving seat (300) disposed on the base (100), wherein the receiving seat (300) is used to place the waveguide (600); characterized in that: The clamping mechanism includes a mounting base (240) disposed on the base (100); the mounting base (240) is provided with a support arm (242) and a clamping cylinder (244) disposed on the support arm (242), the piston rod end of the clamping cylinder (244) is provided with a clamping block (260) that can abut against the waveguide (600); wherein, the clamping block (260) is also provided with a limiting pad (270) to restrict the rotation of the waveguide (600).

2. The antenna waveguide processing fixture according to claim 1, characterized in that, The clamping mechanism includes at least a pair of first clamping mechanism (210) and second clamping mechanism (220) arranged opposite to each other; the first clamping mechanism (210) and the second clamping mechanism (220) are disposed at both ends of the base (100).

3. The antenna waveguide processing fixture according to claim 2, characterized in that, The first clamping mechanism (210) and the second clamping mechanism (220) are also provided with through holes (241) for passing through the waveguide (600); the through holes (241) are provided on the mounting bases (240) of the first clamping mechanism (210) and the second clamping mechanism (220).

4. The antenna waveguide processing fixture according to claim 1, characterized in that, The receiving seat (300) includes at least a pair of first receiving seats (300) and second receiving seats (300) disposed on the base (100); wherein the inner shape of the receiving groove (310) of the receiving seat (300) is arc-shaped, "U"-shaped or "V"-shaped.

5. The antenna waveguide processing fixture according to claim 1, characterized in that, The base (100) is provided with several support seats (400) on both sides of the waveguide (600) installation path; the support seats (400) are also provided with limiting blocks (410) that abut against the waveguide (600).

6. The antenna waveguide processing fixture according to claim 1, characterized in that, The clamping mechanism further includes a connector; the connector includes a connector (250) and a connecting block (251) disposed at the end of the connector (250); the connector (250) is movable based on a sleeve (243) disposed on the support arm (242); the end of the piston rod of the clamping cylinder (244) is connected to the top of the connecting block (251); the clamping block (260) is disposed at the bottom of the connecting block (251).

7. The antenna waveguide processing fixture according to claim 1, characterized in that, The clamping block (260) is provided with a groove (261) and an abutment post (263) disposed in the groove (261); the limiting pad (270) can be installed through the abutment post (263).

8. The antenna waveguide processing fixture according to claim 7, characterized in that, The clamping block (260) extends through the piston rod of the clamping cylinder (244) and moves toward the waveguide (600). The abutting post (263) abuts against the waveguide (600). The limiting pad (270) generates friction with the waveguide (600) and restricts the rotation of the waveguide (600).

9. The antenna waveguide processing fixture according to claim 1, characterized in that, The base (100) is also provided with a third clamping mechanism (230) on both sides of the waveguide (600) installation path.

10. The antenna waveguide processing fixture according to claim 1, characterized in that, The base (100) is provided with a plurality of elongated mounting holes spaced apart; the base is also provided with multi-functional seats on both sides of the waveguide mounting path; the multi-functional seat includes a base and a drive cylinder disposed on the base; the piston rod end of the drive cylinder is provided with an abutment block that can contact the waveguide.

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