Tuning device and tuning method

Abstract

The present invention belongs to the technical field of filter production. On the one hand, a tuning device is disclosed, which includes a machine, a carrier, an adjustment mechanism, a detection mechanism, a visual positioning mechanism and a transfer mechanism. The transfer mechanism moves the carrier to the detection mechanism, the adjustment mechanism and the visual positioning mechanism. The detection mechanism detects the waveform of the cavity filter to detect whether the cavity filter is a good product or a semi-finished product. The visual positioning mechanism visually locates the position of the screws and nuts on the semi-finished cavity filter, and detects the position of the screws and nuts that need to be adjusted. The transfer mechanism can align each screw and nut with the adjustment mechanism so that the adjustment mechanism can adjust the screws and nuts that need to be adjusted to tune the waveform of the cavity filter. On the other hand, the present invention discloses a tuning method including the above-mentioned tuning device. The tuning device unifies the detection standard of the cavity filter's waveform, improves the efficiency of the cavity filter tuning operation, and reduces the cost.

Description

Technical Field

[0001] The present invention relates to the technical field of filter production, and in particular to a tuning device and a tuning method. Background Art

[0002] With the development of science and technology, cavity filters are widely used in aerospace, radar, communications, electronic countermeasures, radio and television, and various electronic test equipment because they have good frequency selection and filtering effects in circuits and electronic high-frequency systems, and can suppress useless signals and noise outside the frequency band.

[0003] The cavity filter adjusts the relevant parameters of the cavity filter by loosening the fastening nut on the tuning screw and adjusting each tuning screw to tune the frequency point of each resonant cavity, so that the cavity filter meets the design requirements.

[0004] However, traditional cavity filter debugging is done by manually observing the waveform of the cavity filter after inspection, and manually adjusting each tuning screw based on one's own experience to meet the design requirements. This process is not only time-consuming and labor-intensive, but also requires a high level of experience from the workers. Due to the differences in judgment standards among different operators and visual fatigue in manual operations, large waveform errors occur, making the tuning operation of the cavity filter inefficient and costly.

[0005] Therefore, it is urgent to solve the above problems. Summary of the invention

[0006] On one hand, the present invention provides a tuning device and a tuning method to improve the tuning efficiency of a cavity filter, unify detection standards, reduce the influence of manual labor on the tuning operation, and reduce production costs.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] A tuning device is configured to adjust a tuning screw on a cavity filter to tune the waveform of the cavity filter, the tuning device comprising a platform, a carrier and an adjustment mechanism, the tuning device also comprising a detection mechanism, a visual positioning mechanism and a transfer mechanism, wherein:

[0009] The transfer mechanism is capable of moving the carrier to the detection mechanism, the adjustment mechanism and the visual positioning mechanism;

[0010] The detection mechanism can detect the waveform of the cavity filter to detect whether the cavity filter needs to be tuned;

[0011] The visual positioning mechanism is configured to obtain the position of the tuning screw that needs to be tuned on the cavity filter;

[0012] The adjustment mechanism is configured to adjust the tuning screw that needs to be tuned on the cavity filter.

[0013] Preferably, the transfer mechanism can align each of the tuning screws of the cavity filter and the fastening nuts fixing the tuning screws with the adjustment mechanism, so that the adjustment mechanism can adjust the tuning screws and the fastening nuts.

[0014] Preferably, the carrier comprises a positioning mechanism and a clamping mechanism, the positioning mechanism is configured to position the cavity filter, and the clamping mechanism is configured to fix the cavity filter positioned by the positioning mechanism.

[0015] Preferably, the clamping mechanism comprises:

[0016] A pair of hooks, each hook having a slot, the pair of hooks being hinged to two sides of the carrier respectively, and the pair of hooks being able to deflect in a direction approaching or away from each other to cooperate with or be engaged with or separated from the cavity filter; and

[0017] A pair of elastic members, one end of each of the elastic members is connected to the hook, and the other end of each of the elastic members is connected to the carrier, so that the pair of hooks are kept at a position where they can be engaged with the cavity filter.

[0018] Preferably, the tuning device also includes a transporting mechanism, which can place the cavity filter in or take it out of the carrier, and the transporting mechanism includes an unlocking wheel, which can push against a pair of hooks when the transporting mechanism places or takes out the cavity filter, so that the pair of hooks unlock the cavity filter.

[0019] Preferably, the transport mechanism further comprises a rotating portion and a clamping portion, the clamping portion is configured to clamp the cavity filter, and the rotating portion can drive the unlocking wheel and the clamping portion to rotate around the same axis.

[0020] Preferably, the detection mechanism can move from an initial position along with the carrier and remain electrically connected to the cavity filter.

[0021] Preferably, the detection mechanism comprises a pair of contacts and a pair of downward pressure cylinders, wherein:

[0022] The pair of contacts can slide respectively along a direction parallel to the movement of the carrier;

[0023] A pair of the downward pressure cylinders can respectively push a pair of the contacts to dock with the cavity filter, so that the detection mechanism is electrically connected to the cavity filter.

[0024] Preferably, the visual positioning mechanism is fixed to the transfer mechanism, and the adjustment mechanism includes a nut tightening portion and a screw adjusting portion, wherein:

[0025] The nut tightening part comprises an active member, a driven member, a first motor and a nut sleeve, wherein the active member is connected to the rotating shaft of the first motor, the driven member is synchronously rotatably sleeved on the nut sleeve, and the active member is synchronously rotatably connected to the driven member;

[0026] The screw adjustment part includes a screw rod and a second motor, the screw rod is connected to the rotating shaft of the second motor, the screw rod is coaxially arranged with the follower and passes through the nut sleeve, and the screw rod can move along the extension direction of the rotating shaft of the follower to tune the waveform of the cavity filter.

[0027] Another aspect of the present invention provides a tuning method including the tuning device as described above, the tuning method comprising the following steps:

[0028] placing the cavity filter into the carrier;

[0029] The transfer mechanism moves the carrier carrying the cavity filter to the detection mechanism;

[0030] The detection mechanism detects the cavity filter to detect whether the cavity filter needs to be tuned. If tuning is not required, the transfer mechanism resets the carrier to output the cavity filter. If tuning is required, the visual positioning mechanism obtains the position of the tuning screw on the cavity filter that needs to be tuned;

[0031] The adjustment mechanism adjusts the tuning screw that needs to be tuned on the cavity filter according to the position information of the tuning screw obtained by the visual positioning mechanism;

[0032] The detection mechanism detects the waveform of the tuned cavity filter. If the waveform of the cavity filter meets the detection standard, the transfer mechanism resets the carrier. If the waveform of the cavity filter does not meet the detection standard, the visual positioning mechanism and the adjustment mechanism repeat the operation until the waveform of the cavity filter meets the standard.

[0033] The beneficial effects of the present invention are as follows: the waveform of the cavity filter can be automatically detected through the detection mechanism, the visual positioning mechanism and the transfer mechanism, and the screws and nuts on the cavity filter can be automatically adjusted according to the waveform, thereby unifying the detection standards, improving the efficiency of the cavity filter tuning operation, and reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic structural diagram of a tuning device provided by an embodiment of the present invention;

[0035] Figure 2 yes Figure 1 A top view of

[0036] Figure 3 yes Figure 1 The main view of

[0037] Figure 4 yes Figure 1 Left view of;

[0038] Figure 5 yes Figure 2 Schematic diagram of the middle AA section;

[0039] Figure 6 yes Figure 3 Schematic diagram of the middle BB section;

[0040] Figure 7 yes Figure 3 Schematic diagram of the CC section;

[0041] Figure 8 yes Figure 1 A partial enlarged view of the L in the middle;

[0042] Fig. 9 yes Figure 5 A partial enlarged view of the M in the middle;

[0043] Fig.10 yes Figure 7 A local enlarged view of point N in the middle.

[0044] In the figure:

[0045] 11. Machine;

[0046] 21. Support seat; 22. X sliding module; 23. Z sliding module; 24. Y sliding module; 241. Y-direction transmission part; 242. First connecting plate; 2431. Y-direction slide rail; 2432. Y-direction slide block; 244. Connecting block;

[0047] 3. Carrier; 31. Positioning mechanism; 32. Clamping mechanism; 321. Hook; 322. Elastic member; 323. Base;

[0048] 4. Transport mechanism; 41. Unlocking part; 411. Unlocking wheel; 431. First rotating shaft; 432. Active synchronous wheel; 433. Driven synchronous wheel; 434. Synchronous belt; 44. Second connecting plate; 451. Air claw; 452. Clamping claw;

[0049] 5. Detection mechanism; 51. First detection part; 511. First contact; 512. First downward pressure cylinder; 513. First guide part; 52. Second detection part; 521. Second contact; 522. Second downward pressure cylinder; 523. Second guide part; 53. First reset part; 54. Second reset part;

[0050] 6. Visual positioning mechanism;

[0051] 71. Nut tightening part; 711. Nut sleeve; 712. Driving gear; 713. Driven gear; 714. First motor; 72. Screw adjusting part; 721. Screw rod; 722. Second motor; 723. Coupling; 724. First connecting shaft; 725. Second connecting shaft; 73. Lifting part. DETAILED DESCRIPTION

[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0053] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0055] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0056] A cavity filter usually has multiple fastening nuts and tuning screws. The fastening nuts can fasten the tuning screws on the cavity filter. The depth of the tuning screws entering and exiting the cavity filter cover can be changed by manually tightening or loosening each tuning screw to achieve the tuning operation of the cavity filter waveform. Manual tuning requires high experience from the operator and different operators have different judgment criteria, which leads to large waveform errors, low tuning efficiency and high cost.

[0057] In order to solve the above problems, the present embodiment provides a tuning device, which is configured to adjust the tuning screws on the cavity filter to tune the waveform of the cavity filter. The tuning device may include a machine 11, a carrier 3, an adjustment mechanism and an industrial computer. The tuning device may also include a detection mechanism 5, a visual positioning mechanism 6 and a transfer mechanism. The transfer mechanism can move the carrier 3 to the detection mechanism 5, the adjustment mechanism and the visual positioning mechanism 6. The detection mechanism 5 can detect the waveform of the cavity filter to measure whether the cavity filter needs to be tuned. The visual positioning mechanism 6 can be configured to visually locate the position of the fastening nut and the tuning screw on the cavity filter that needs to be tuned, and can obtain the position of the fastening nut and the tuning screw that need to be adjusted on the cavity filter. The adjustment mechanism is configured to adjust the tuning screw and the fastening nut.

[0058] The detection mechanism 5, the visual positioning mechanism 6 and the transfer mechanism can realize automatic detection of the waveform of the cavity filter, and can automatically adjust the fastening nuts and tuning screws on the cavity filter according to the measured waveform, thereby unifying the detection standards, improving the efficiency of the cavity filter tuning operation and reducing the cost.

[0059] Furthermore, in order to improve the operating efficiency of the tuning device, the transplanting mechanism can align each tuning screw of the cavity filter and the fastening nuts for fixing the tuning screws with the adjustment mechanism respectively, so that the adjustment mechanism can adjust the fastening nuts and tuning screws that need to be adjusted on the cavity filter, thereby realizing that the adjustment mechanism can automatically align and adjust the fastening nuts and tuning screws, thereby improving the operating efficiency of the tuning device.

[0060] Specifically, Figures 1 to 3As shown, the adjustment mechanism may include a nut loosening portion 71 and a screw adjusting portion 72, the nut loosening portion 71 is configured to loosen the fastening nut on the cavity filter, the nut loosening portion 71 includes a first motor 714, the screw adjusting portion 72 is configured to tighten or loosen the tuning screw on the cavity filter, and the screw adjusting portion 72 includes a second motor 722. The tuning device is also provided with an industrial computer, which controls the rotation speed and angle of the first motor 714 and the second motor 722 respectively to control the installation state of the fastening nut and the tuning screw, thereby adjusting the depth of the tuning screw entering and exiting the cavity filter cover plate to achieve tuning of the waveform of the cavity filter.

[0061] The transplanting mechanism includes a pair of support seats 21, an X sliding module 22, a Z sliding module 23 and a Y sliding module 24. The pair of support seats 21 are arranged along the width direction of the machine platform 11 and fixed on the machine platform 11. The X sliding module 22 is fixed on the pair of support seats 21. The Z sliding module 23 is connected to the X sliding module 22, and the adjustment mechanism is connected to the Z sliding module 23. The industrial computer can drive the X sliding module 22, the Z sliding module 23 and the Y sliding module 24 respectively, so that the X sliding module 22 can drive the Z sliding module 23 to move along a first direction, which is a horizontal direction parallel to the width of the machine platform 11; the Z sliding module 23 can drive the adjustment mechanism to move along a second direction, which is a vertical direction.

[0062] like Figure 2 and Figure 5 As shown, the Y-sliding module 24 is fixed on the machine 11 and is arranged between a pair of support seats 21. The Y-sliding module 24 includes a Y-axis transmission part 241, a first connecting plate 242, a Y-axis slide rail 2431, a Y-axis slider 2432 and a connecting block 244, wherein the Y-axis slide rail 2431 is arranged parallel to the Y-axis transmission part 241, the Y-axis slider 2432 is slidably connected to the Y-axis slide rail 2431, the connecting block 244 is fixed to the top of the Y-axis slider 2432, one end of the first connecting plate 242 is connected to the Y-axis transmission part 241, and the other end of the first connecting plate 242 is connected to the connecting block 244, and the carrier 3 is fixed on the connecting block 244, thereby connecting the carrier 3 to the Y-sliding module 24, so that the Y-sliding module 24 drives the carrier 3 to move along the third direction, and the third direction is a horizontal direction perpendicular to both the first direction and the second direction. The transplanting mechanism can align each fastening nut and tuning screw of the cavity filter placed in the carrier 3 with the adjustment mechanism, so that the waveform of the cavity filter can be tuned.

[0063] The detection mechanism 5 includes a first detection unit 51, a second detection unit 52 and a vector network analyzer. The cavity filter is provided with plugs that allow the first detection unit 51 and the second detection unit 52 to be inserted respectively, so that the first detection unit 51 and the second detection unit 52 can be electrically connected to the cavity filter, so that the vector network analyzer can measure the waveform of the cavity filter. The vector network analyzer can transmit the measured filtering data to the industrial computer, and the industrial computer can compare the measured filtering data with the standard filtering data, so as to measure whether the cavity filter needs to be tuned.

[0064] The visual positioning mechanism 6 is connected to the Z sliding module 23, and the transfer mechanism can drive the visual positioning mechanism 6 to move along the first direction and the second direction. The visual positioning mechanism 6 can take pictures to collect images of the fastening nuts and tuning screws on the cavity filter that need to be tuned, and calculate and measure the positions of the fastening nuts and tuning screws on the cavity filter in combination with the coordinates of the X sliding module 22, the Z sliding module 23 and the Y sliding module 24. The industrial computer compares the measured filtering data with the standard filtering data, and combines the positions of the fastening nuts and tuning screws on the cavity filter measured by the visual positioning mechanism 6 to determine the positions of the fastening nuts and tuning screws on the cavity filter that need to be adjusted.

[0065] Furthermore, in order to enable the carrier 3 to accurately position the cavity filter and firmly fix the cavity filter, as Figure 5 and Fig. 9 As shown, the carrier 3 may include a positioning mechanism 31 and a clamping mechanism 32. The positioning mechanism 31 is configured to position and limit the position of the cavity filter when the cavity filter is placed. The positioning mechanism 31 includes a pair of positioning pins arranged at intervals. The cavity filter is provided with a pair of positioning holes respectively matched with the pair of positioning pins. When the cavity filter is placed in the carrier 3, the pair of positioning pins can be respectively inserted into the pair of positioning holes, so as to position and limit the position of the cavity filter in the carrier 3. The clamping mechanism 32 is configured to clamp the positioned cavity filter, so as to fix the cavity filter more stably.

[0066] By means of the above structure, preferably, the clamping mechanism 32 includes a pair of hooks 321, a pair of elastic members 322 and a pair of bases 323. Grooves for accommodating the pair of bases 323 are provided on both sides of the carrier 3, and the pair of bases 323 are fixed in the grooves on both sides of the carrier 3. The pair of hooks 321 are both provided with slots, and the pair of hooks 321 are respectively hinged on both sides of the carrier 3. The pair of hooks 321 can deflect in the direction of approaching each other or departing from each other. The base 323 is provided with a limiting block near the hinge axis, and the pair of limiting blocks can respectively limit the pair of hooks 321 to deflect in the direction of approaching each other, so as to cooperate with the clamping or separation from the cavity filter. One end of the pair of elastic members 322 is respectively connected to the pair of hooks 321, and the other end of the pair of elastic members 322 is respectively connected to the pair of bases 323, so that the pair of hooks 321 can remain locked in the cavity filter.

[0067] like Figures 4 to 6 As shown, further, in order to save manpower and reduce labor costs, the tuning device also includes a transport mechanism 4, which can put the cavity filter into or take it out of the carrier 3, and the transport mechanism 4 includes a pair of unlocking parts 41, and the pair of unlocking parts 41 are each provided with an unlocking wheel 411, and the unlocking wheel 411 is rotatably fixed to the unlocking part 41. When the transport mechanism 4 places or takes out the cavity filter in the carrier 3, the pair of unlocking wheels 411 can push against the pair of hooks 321 respectively, and the pair of hooks 321 are deflected in directions away from each other, and the pair of elastic members 322 are elastically deformed, thereby realizing the unlocking of the pair of hooks 321, and when the transport mechanism 4 is separated from the carrier 3, the pair of unlocking wheels 411 are separated from the pair of hooks 321 respectively, and the pair of elastic members 322 restore their initial shapes, so that the pair of hooks 321 are connected to both sides of the cavity filter to lock the cavity filter.

[0068] Furthermore, in order to enable the conveying mechanism 4 to adjust and correct the posture of the cavity filter, the conveying mechanism 4 also includes a rotating part and a clamping part, wherein the clamping part is configured to clamp the cavity filter, and the rotating part can drive the unlocking wheel 411 and the clamping part to rotate around the same axis, so that the conveying mechanism 4 can adjust and correct the posture of the cavity filter, thereby aligning a pair of positioning holes on the cavity filter with a pair of positioning pins on the carrier 3, and then placing the cavity filter into the carrier 3.

[0069] Specifically, the rotating part includes a first rotating shaft 431, a driving synchronous wheel 432, a driven synchronous wheel 433, a synchronous belt 434 and a second connecting plate 44. The unlocking part 41 and the clamping part are both fixed to the second connecting plate 44, one end face of the first rotating shaft 431 is fixed to the second connecting plate 44, and the driven synchronous wheel 433 is synchronously rotatably sleeved on the first rotating shaft 431, and the driven synchronous wheel 433 is synchronously rotatably connected to the driving synchronous wheel 432 through the synchronous belt 434. When the driving synchronous wheel 432 is driven to rotate, the driven synchronous wheel 433 can drive the second connecting plate 44 to rotate, thereby driving the clamping part and the unlocking part 41 to rotate, so as to adjust and correct the posture of the cavity filter clamped by the clamping part, so as to accurately put the cavity filter into the carrier 3.

[0070] The clamping part includes an air claw 451 and a pair of clamping claws 452. The pair of clamping claws 452 are respectively connected to the two ends of the pair of air claws 451. The air claw 451 can drive the pair of clamping claws 452 to move closer to or away from each other, so that the pair of clamping claws 452 can clamp the cavity filter.

[0071] Furthermore, in order to improve the operating efficiency of the tuned cavity filter, as Figure 1 , Figure 4 , Figure 7 and Figure 8 As shown, the first detection part 51 and the second detection part 52 respectively include a first guide part 513 and a second guide part 523, and the extension directions of the first guide part 513 and the second guide part 523 are both arranged parallel to the third direction, and the Y-axis slide rail 2431 is arranged between the first guide part 513 and the second guide part 523. When the first detection part 51 and the second detection part 52 are electrically connected to the cavity filter, the carrier 3 can drive the cavity filter, the first detection part 51 and the second detection part 52 to move together, so that the first detection part 51 and the second detection part 52 remain electrically connected to the cavity filter, so that the adjustment mechanism can tune the waveform of the cavity filter according to the result of continuous detection by the detection mechanism 5, thereby improving the operating efficiency of tuning the cavity filter.

[0072] When the Y sliding module 24 drives the first detection part 51 and the second detection part 52 to reset, the reset first detection part 51 and the second detection part 52 may move on the first guide part 513 and the second guide part 523 due to the vibration of the machine 11, thereby causing the first detection part 51 and the second detection part 52 to be unable to be automatically inserted into the plug on the cavity filter. Furthermore, in order to enable the detection mechanism 5 to return to the initial position for electrical connection after following the detection of the adjusted cavity filter, thereby facilitating the detection operation of the next cavity filter, the detection mechanism 5 is also provided with a first reset part 53 and a second reset part 54. The first reset part 53 can push the first detection part 51 to return to the initial position of the first detection part 51, and the second detection part 52 can push the second detection part 52 to return to the initial position of the second detection part 52, thereby resetting before the detection operation of the next cavity filter to eliminate the influence of vibration on the first detection part 51 and the second detection part 52. Preferably, the first reset part 53 and the second reset part 54 are both cylinders.

[0073] Furthermore, in order to enable the detection mechanism 5 to move stably with the cavity filter, the first detection part 51 includes a first contact 511 and a first pressing cylinder 512, the first pressing cylinder 512 is connected to the first guide part 513, and the first contact 511 is fixedly connected to the output end of the first pressing cylinder 512, so that the first contact 511 can be stably connected to the plug on the cavity filter. The second detection part 52 includes a second contact 521 and a second pressing cylinder 522, the second pressing cylinder 522 is connected to the second guide part 523, and the second contact 521 is fixedly connected to the output end of the second pressing cylinder 522, so that the second contact 521 can be stably connected to the plug on the cavity filter, so that the first detection part 51 and the second detection part 52 can move with the cavity filter and can remain stably electrically connected to the cavity filter.

[0074] Furthermore, in order to avoid the adjustment mechanism from blocking the visual positioning mechanism 6, the visual positioning mechanism 6 is connected to the Z sliding module 23, and the adjustment mechanism includes a nut loosening portion 71 and a screw adjustment portion 72, wherein the nut loosening portion 71 is configured to loosen the fastening nut on the cavity filter, and the screw adjustment portion 72 is configured to adjust the tuning screw on the cavity filter to tune the waveform of the cavity filter. The nut loosening portion 71 is arranged at the bottom of the adjustment mechanism, and the nut loosening portion 71 and the screw adjustment portion 72 are both connected to the Z sliding module 23, so that the visual positioning mechanism 6, the nut loosening portion 71 and the screw adjustment portion 72 are all kept in a relatively static state, thereby avoiding the nut loosening portion 71 and the screw adjustment portion 72 blocking the visual positioning mechanism 6 from taking pictures to collect the image of the cavity filter.

[0075] Furthermore, if Figure 1 , Figure 3 , Figure 7 and Fig.10 As shown, in order to optimize the structure of the adjustment mechanism, the nut tightening portion 71 includes a nut sleeve 711, a driving gear 712, a driven gear 713 and a first motor 714. The driving gear 712 is synchronously rotatably sleeved on the rotating shaft of the first motor 714, and the driven gear 713 is synchronously rotatably sleeved on the nut sleeve 711. The driving gear 712 is meshed with the driven gear 713, so that the first motor 714 drives the nut sleeve 711 to rotate, so that the nut tightening portion 71 can tighten or loosen the fastening nut on the cavity filter.

[0076] The screw adjustment portion 72 includes a first connecting rod 721, a second motor 722, a coupling 723, a first connecting shaft 724 and a second connecting shaft 725. The first connecting rod 721 is synchronously rotatably connected to one end of the second connecting shaft 725, and the other end of the second connecting shaft 725 is synchronously rotatably connected to one end of the first connecting shaft 724. The coupling 723 is respectively synchronously rotatably connected to the other end of the first connecting shaft 724 and the rotating shaft of the second motor 722, so that the rotating shaft of the second motor 722 drives the first connecting rod 721 to rotate.

[0077] The adjustment mechanism also includes a lifting part 73, the rotating shaft of the screw adjustment part 721 is coaxially arranged with the rotating shaft of the driven gear 713 of the nut tightening part 71, and the screw adjustment part 721 can coaxially pass through the nut sleeve 711, and the lifting part 73 can drive the screw adjustment part 72 to rise and fall, so that the screw adjustment part 72 can move along the extension direction of the rotating shaft of the nut sleeve 711, so that the screw adjustment part 721 can extend out of the nut sleeve 711 to adjust the tuning screw on the cavity filter.

[0078] This embodiment also provides a tuning method including the tuning device as described above, the tuning method including the following steps:

[0079] S1. Align the cavity filter and place it in the carrier 3;

[0080] S2. The transfer mechanism moves the carrier 3 carrying the cavity filter to the detection mechanism 5;

[0081] S21. The detection mechanism 5 is electrically connected to the cavity filter to detect the cavity filter and determine whether the cavity filter needs to be tuned according to a preset detection standard;

[0082] S22. If it is determined that the cavity filter does not need to be tuned, the transfer mechanism resets the carrier 3 carrying the cavity filter to output the cavity filter. If it is determined that the cavity filter needs to be tuned, the visual positioning mechanism 6 takes a photo to detect the position of the cavity filter;

[0083] S31. According to the position of the cavity filter detected by the visual positioning mechanism 6, the visual positioning mechanism 6 obtains the position information of each fastening nut and tuning screw on the cavity filter;

[0084] S32. According to the waveform measured by the detection mechanism 5, it is compared with the preset detection standard, and combined with the position information of each fastening nut and tuning screw on the visual positioning mechanism 6, the position information of the fastening nut and tuning screw that need to be adjusted on the cavity filter is identified;

[0085] S33. According to the position information of the fastening nut and the tuning screw that need to be adjusted, the adjustment mechanism adjusts the fastening nut and the tuning screw that need to be adjusted accordingly;

[0086] S4. The detection mechanism 5 detects the waveform of the adjusted cavity filter. If the waveform of the cavity filter meets the detection standard, the transfer mechanism resets the carrier (3) to output the cavity filter. If the waveform of the cavity filter does not meet the detection standard, repeat step S31.

[0087] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A tuning device, configured to adjust a tuning screw on a cavity filter to tune a waveform of the cavity filter, the tuning device comprising a machine platform (11), a carrier (3) and an adjustment mechanism, characterized in that: The tuning device further comprises a detection mechanism (5), a visual positioning mechanism (6) and a transfer mechanism, wherein: The transfer mechanism is capable of moving the carrier (3) to the detection mechanism (5), the adjustment mechanism and the visual positioning mechanism (6); The transfer mechanism can align each of the tuning screws of the cavity filter and the fastening nuts fixing the tuning screws with the adjustment mechanism, so that the adjustment mechanism can adjust the tuning screws and the fastening nuts; The detection mechanism (5) is capable of detecting the waveform of the cavity filter to detect whether the cavity filter needs to be tuned; The visual positioning mechanism (6) is configured to obtain the position of the tuning screw on the cavity filter that needs to be tuned; The adjustment mechanism is configured to adjust the tuning screw that needs to be tuned on the cavity filter; The detection mechanism (5) is capable of moving from an initial position along with the carrier (3) and maintaining electrical connection with the cavity filter; The detection mechanism (5) comprises a pair of contacts and a pair of downward pressure cylinders, wherein: The pair of contacts are capable of sliding respectively in a direction parallel to the movement of the carrier (3); The pair of downward-pressing cylinders can respectively push the pair of contacts against the cavity filter so as to electrically connect the detection mechanism (5) to the cavity filter.

2. The tuning device according to claim 1, characterized in that The carrier (3) comprises a positioning mechanism (31) and a clamping mechanism (32); the positioning mechanism (31) is configured to position the cavity filter, and the clamping mechanism (32) is configured to fix the cavity filter positioned by the positioning mechanism (31).

3. The tuning device according to claim 2, characterized in that: The clamping mechanism (32) comprises: a pair of hooks (321), the hooks (321) being provided with a slot, the pair of hooks (321) being hinged to two sides of the carrier (3) respectively, and the pair of hooks (321) being able to deflect in directions approaching or moving away from each other so as to be engaged with or separated from the cavity filter; and A pair of elastic members (322), one end of the elastic member (322) is connected to the hook (321), and the other end of the elastic member (322) is connected to the carrier (3), so that the pair of hooks (321) are maintained at a position capable of being engaged with the cavity filter.

4. The tuning device according to claim 3, characterized in that: The tuning device further comprises a transport mechanism (4), wherein the transport mechanism (4) is capable of placing the cavity filter in or taking it out of the carrier (3), and the transport mechanism (4) comprises an unlocking wheel (411), wherein the unlocking wheel (411) is capable of pushing against a pair of hooks (321) when the transport mechanism (4) places or takes out the cavity filter, so that the pair of hooks (321) unlock the cavity filter.

5. The tuning device according to claim 4, characterized in that: The transport mechanism (4) further comprises a rotating part and a clamping part, the clamping part is configured to clamp the cavity filter, and the rotating part can drive the unlocking wheel (411) and the clamping part to rotate around the same axis.

6. The tuning device according to claim 1, characterized in that: The visual positioning mechanism (6) is fixed to the transfer mechanism, and the adjustment mechanism comprises a nut tightening portion (71) and a screw adjusting portion (72), wherein: The nut tightening portion (71) comprises a driving member, a driven member, a first motor (714) and a nut sleeve (711), the driving member is connected to the rotating shaft of the first motor (714), the driven member is synchronously rotatably sleeved on the nut sleeve (711), and the driving member is synchronously rotatably connected to the driven member; The screw adjustment portion (72) comprises a locking rod (721) and a second motor (722); the locking rod (721) is connected to the rotating shaft of the second motor (722); the locking rod (721) is coaxially arranged with the driven member and passes through the nut sleeve (711); the locking rod (721) is movable along the extension direction of the rotating shaft of the driven member to tune the waveform of the cavity filter.

7. A tuning method based on the tuning device according to any one of claims 1 to 6, characterized in that: The tuning method comprises the following steps: Place the cavity filter into the carrier (3); The transfer mechanism moves the carrier (3) carrying the cavity filter to the detection mechanism (5); The detection mechanism (5) detects the cavity filter to detect whether the cavity filter needs to be tuned; if tuning is not required, the transfer mechanism resets the carrier (3) to output the cavity filter; if tuning is required, the visual positioning mechanism (6) obtains the position of the tuning screw on the cavity filter that needs to be tuned; The adjustment mechanism adjusts the tuning screw that needs to be tuned on the cavity filter according to the position information of the tuning screw obtained by the visual positioning mechanism (6); The detection mechanism (5) detects the waveform of the tuned cavity filter. If the waveform of the cavity filter meets the detection standard, the transfer mechanism resets the carrier (3) to output the cavity filter. If the waveform of the cavity filter does not meet the detection standard, the visual positioning mechanism (6) and the adjustment mechanism repeat the operation until the waveform of the cavity filter meets the standard.

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