A phase-adjustable constant-impedance RF connector, assembly device and method

Abstract

The present invention discloses a phase-adjustable constant-impedance RF connector, an assembly device and a method. The constant-impedance RF connector can ignore the assembly errors between the inner and outer conductors. After assembly, by rotating the adjusting screw rod, the inner rod body moves along the central axis, and the depth of the inner rod body inserted into the inner conductor groove of the fixed housing is finely adjusted, so as to realize the phase adjustment after the RF connector is assembled and the phase adjustment during the subsequent installation and use process. At the same time, by using the assembly device and the assembly method of the present invention, through processes such as automatic feeding, assembly and detection, the time and labor intensity of manual operation are reduced, the production efficiency can be significantly improved, the dependence on labor is reduced, and the labor cost is lowered. Moreover, due to the improvement of production efficiency and the guarantee of product quality, the production cost is indirectly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of radio frequency connectors, and particularly relates to a phase-adjustable constant-impedance radio frequency connector, an assembly device and a method. Background Art

[0002] A radio frequency coaxial connector is usually a signal transmission component installed on a cable or an instrument, and is an indispensable key component in a coaxial transmission system. Radio frequency coaxial connectors are usually divided into several types such as threaded, bayonet, push-in, and floating blind plug. With the rise of mobile Internet big data and the Internet of Things, the market demand for floating blind plug radio frequency coaxial connectors is increasing. The contacts in rectangular connectors and circular connectors with mixed high and low frequencies both require a certain degree of radial and axial floating to achieve the blind plug function.

[0003] According to the skin effect, radio frequency energy is always transmitted on the surface between conductors. The characteristic impedance of a radio frequency coaxial connector is determined by the ratio of the diameters of the outer conductor and the inner conductor and the dielectric constant of the insulating medium between the two conductors. When the characteristic impedance of the entire system is matched, the signal transmission efficiency is the highest.

[0004] In a normally designed radio frequency coaxial connector, the sizes of the two mating inner conductors are stable, and the phase of the connector is adjusted by the connection of the two inner conductors. However, due to the existence of assembly errors, the radio frequency coaxial connectors assembled by traditional assembly methods often fail to meet the precise phase requirements, and cannot be adjusted after assembly. Therefore, it is only possible to continuously disassemble and assemble for adjustment, resulting in a cumbersome production and debugging process and a low yield rate for constant-impedance radio frequency connectors with high phase requirements. Summary of the Invention

[0005] The purpose of the present invention is to provide a phase-adjustable constant-impedance radio frequency connector, an assembly device and a method to solve the problems existing in the assembly of traditional radio frequency coaxial connectors.

[0006] To solve the above technical problems, the present invention provides a phase-adjustable constant-impedance radio frequency connector, including a fixed housing, an adjustable inner conductor assembly, and an adjusting screw;

[0007] The adjustable inner conductor assembly is coaxially installed inside the adjusting screw and is threadedly coupled with the internal thread of the adjusting screw;

[0008] The adjusting screw is coaxially installed inside the fixed housing and is threadedly coupled with the external thread of the fixed housing;

[0009] The pitch of the internal thread of the adjusting screw is greater than that of the external thread, which is a differential thread; when the adjusting screw is rotated, the adjusting inner conductor assembly moves along the central axis, thereby adjusting the depth of insertion of the inner guide rod body of the adjusting inner conductor assembly into the inner conductor groove in the fixed housing, so that the connection of the two inner conductors generates a phase change.

[0010] Preferably, the adjusting inner conductor assembly includes an inner guide rod body, a threaded bushing, an elastic contact sleeve, a lining sleeve and a welding sleeve; the inner guide rod body, the elastic contact sleeve, the lining sleeve and the welding sleeve are connected in sequence and sleeved and installed in the threaded bushing;

[0011] The external thread of the threaded bushing is threadedly coupled with the internal thread of the adjusting screw. When the threaded bushing is rotated, the inner guide rod body moves along the central axis, thereby roughly adjusting the depth of insertion of the inner guide rod body into the inner conductor groove in the fixed housing;

[0012] When the adjusting screw is rotated, the inner guide rod body moves along the central axis, thereby finely adjusting the depth of insertion of the inner guide rod body into the inner conductor groove in the fixed housing.

[0013] Preferably, a locking screw is provided at the tail of the welding sleeve, and the locking screw is inserted into the threaded bushing and threadedly coupled with the internal thread of the threaded bushing. As the locking screw rotates, the positions of the inner guide rod body, the elastic contact sleeve, the lining sleeve and the welding sleeve in the threaded bushing are locked;

[0014] A first locking nut is installed on the external thread of the adjusting screw, and the position of the adjusting screw and the fixed housing is locked by the first locking nut;

[0015] A second locking nut is installed on the external thread of the threaded bushing, and the position of the threaded bushing and the fixed housing is locked by the second locking nut.

[0016] Preferably, both the first locking nut and the second locking nut are anti-loosening nuts that prevent backing off; a plurality of knife-shaped teeth are machined on the locking end face of the nut, and the plurality of knife-shaped teeth are stacked around the central axis of the nut.

[0017] An assembly device for a phase-adjustable constant-impedance radio frequency connector includes a rotating workbench; a plurality of positioning jigs are provided on the rotating workbench for placing components of the radio frequency connector;

[0018] The rotating workbench is sequentially provided with:

[0019] A fixed housing picking mechanism for placing a pre-assembled fixed housing assembly in the positioning jig;

[0020] Adjusting screw assembly mechanism, screwing and installing the adjusting screw inside the fixed housing;

[0021] Adjusting inner conductor assembly picking mechanism, placing the pre-assembled and formed adjusting inner conductor assembly above the adjusting screw;

[0022] Adjusting inner conductor assembly assembly mechanism, screwing and installing the adjusting inner conductor assembly inside the adjusting screw;

[0023] Locking screw assembly mechanism, screwing and installing the locking screw inside the adjusting inner conductor assembly;

[0024] Testing mechanism, testing the quality of the assembled constant impedance RF connector through the testing mechanism;

[0025] The fixed housing picking mechanism is configured with a first feeding device, continuously conveying the fixed housing for the fixed housing picking mechanism to pick up the pre-assembled and formed fixed housing assembly and place it in the positioning tooling;

[0026] The adjusting inner conductor assembly picking mechanism is configured with a second feeding device, continuously conveying the adjusting inner conductor assembly for the adjusting inner conductor assembly picking mechanism to pick up the pre-assembled and formed adjusting inner conductor assembly and place it above the adjusting screw;

[0027] On one side of the second feeding device, a pre-forming device is also configured, which can pre-assemble and form the inner guide rod body, threaded bushing, elastic contact sleeve, inner lining sleeve and welding sleeve into an adjusting inner conductor assembly.

[0028] Preferably, seven groups of positioning toolings are evenly arranged on the rotary worktable. The rotary worktable is driven by a rotary motor to drive the seven groups of positioning toolings to circulate. In the assembly sequence, the seven groups of positioning toolings are successively the fixed housing picking station, the adjusting screw assembly station, the adjusting inner conductor assembly picking station, the adjusting inner conductor assembly assembly station, the locking screw assembly station, the testing station and the discharging station;

[0029] Below the rotary worktable, there are multiple groups of unpowered support wheel sets for supporting the rotary worktable to rotate smoothly around the central axis;

[0030] Below the rotary worktable, there is also a locking cylinder. The piston rod of the locking cylinder inserts into the locking hole of the rotary worktable from bottom to top, thereby locking the rotation of the rotary worktable for maintenance after assembly operation errors or for positioning installation or replacement of the positioning tooling on the rotary worktable.

[0031] Preferably, the fixed housing picking mechanism includes elastic jaws and a pressing cylinder. The pressing cylinder moves the fixed housing clamped by the elastic jaws downward into the positioning tooling;

[0032] The elastic jaw mainly consists of multiple movable rubber jaws and a pre-tightening spring. Under the action of the pre-tightening spring, the multiple rubber jaws expand outwards to clamp and fix the outer shell.

[0033] The fixed outer shell picking mechanism further includes a positioning disk and a positioning disk adjusting cylinder. Under the action of the positioning disk adjusting cylinder, the positioning disk is driven to move horizontally to connect with the feeding channel of the first feeding device; and a profiling hole for the fixed outer shell is provided in the positioning disk to position the fixed outer shells transferred from the feeding channel one by one.

[0034] Preferably, the adjusting screw assembling mechanism includes a screw jaw, a screw screwing motor, and a screw lifting cylinder. The screw jaw clamps the adjusting screw and, under the rotation of the screw screwing motor, screws the adjusting screw into the fixed outer shell; at the same time, it rotates and moves downwards under the drive of the screw lifting cylinder.

[0035] The adjusting screw assembling mechanism further includes a claw and a claw cylinder. The claw is inserted into the card slot on one side of the positioning tooling under the action of the claw cylinder to fix the fixed outer shell in the positioning tooling.

[0036] The adjusting inner conductor component picking mechanism includes an adjusting inner conductor component picking jaw and an adjusting inner conductor component flipping cylinder, an adjusting inner conductor component picking lifting cylinder, a first transverse movement cylinder, and a second transverse movement cylinder connected to the jaw in sequence; under the action of the adjusting inner conductor component picking lifting cylinder, the first transverse movement cylinder, and the second transverse movement cylinder, the adjusting inner conductor component picking jaw is driven to move to pick up the adjusting inner conductor component in the feeding channel of the second feeding device; and the adjusting inner conductor component flipping cylinder can flip 180 degrees to place the adjusting inner conductor component in the correct position above the adjusting screw.

[0037] The adjusting inner conductor component assembling mechanism includes an adjusting inner conductor component screwing jaw, an adjusting inner conductor component screwing motor, and an adjusting inner conductor component screwing lifting cylinder; under the action of the adjusting inner conductor component screwing motor, the adjusting inner conductor component screwing jaw is driven to screw and install the adjusting inner conductor component inside the adjusting screw, and at the same time, it rotates and descends under the drive of the adjusting inner conductor component screwing lifting cylinder.

[0038] The detection mechanism includes a detection head and a detection cylinder. The detection head is extended into the assembled constant impedance RF connector through the detection cylinder for detection.

[0039] Preferably, the preforming device includes a pressing head, and the pressing head is connected to a preforming cylinder through a pressing rod; the inner guide rod body, the threaded bushing, the elastic contact sleeve, the inner lining sleeve, and the welding sleeve are placed on the preforming tooling, and the adjusting inner conductor component is pre-assembled and formed under the action of the pressing head.

[0040] The present invention also provides a usage method of an assembly device for a phase-adjustable constant-impedance radio frequency connector, including the following steps:

[0041] Step A: Pre-assembly preparation: Under the action of a pressing head, pre-assemble and form an inner conductor assembly by adjusting the inner guide rod body, threaded bushing, elastic contact sleeve, inner lining sleeve, and welding sleeve in a pre-forming tooling.

[0042] Step B: Feeding preparation: Place the pre-assembled fixed housing assembly from the previous process into the vibrating disk of the first feeding device for standby; at the same time, place the pre-assembled and formed adjustable inner conductor assemblies one by one into the vibrating disk of the second feeding device for standby.

[0043] Step C: Continuous assembly: First, start the rotating motor to drive the rotating workbench to rotate intermittently according to the assembly work rhythm.

[0044] Step C1: At the fixed housing picking station, a fixed housing enters the positioning disk along the feeding channel for positioning. At the same time, the elastic jaws of the fixed housing picking mechanism clamp the fixed housing and, under the action of the pressing cylinder, move it downward to the positioning tooling at this station.

[0045] Step C2: At the adjusting screw assembly station, the screw jaws clamp the adjusting screw and, under the action of the screw screwing motor and the screw lifting cylinder, screw the adjusting screw into the fixed housing.

[0046] Step C3: At the adjustable inner conductor assembly picking station, the adjustable inner conductor assembly picking jaws clamp the adjustable inner conductor assembly on the feeding channel of the second feeding device and, under the action of the adjustable inner conductor assembly picking lifting cylinder, the first transverse movement cylinder, and the second transverse movement cylinder, move it to directly above the adjusting screw; at the same time, identify the front and back of the adjusting screw through a camera and adjust the direction through the adjustable inner conductor assembly flipping cylinder, and then place it into the adjusting screw.

[0047] Step C4: At the adjustable inner conductor assembly assembly station, the adjustable inner conductor assembly screwing jaws clamp the adjustable inner conductor assembly and, under the action of the adjustable inner conductor assembly screwing motor and the adjustable inner conductor assembly screwing lifting cylinder, screw and install the adjustable inner conductor assembly inside the adjusting screw.

[0048] Step C5: At the locking screw assembly station, the jaws clamp the locking screw and, under the action of the screwing motor and the cylinder, screw and install the locking screw inside the adjustable inner conductor assembly.

[0049] Step C6: At the detection station, the detection head extends into the assembled constant-impedance radio frequency connector under the action of the detection cylinder for detection.

[0050] Step C7: At the discharging station, the completed constant impedance RF connector is discharged from here;

[0051] Step D: The seven groups of positioning jigs on the rotary table correspond to the seven stations in Step C, and the seven groups of positioning jigs rotate in sequence at the seven stations, realizing the continuous assembly of the constant impedance RF connector.

[0052] Compared with the prior art, the beneficial effects of the present invention are:

[0053] 1. The constant impedance RF connector of the present invention can ignore the assembly error between the inner and outer conductors. After assembly, rotate the adjusting screw rod to move the inner guide rod body along the central axis, and finely adjust the depth of the inner guide rod body inserted into the inner conductor groove of the fixed housing, so as to realize the phase adjustment after the assembly of the RF connector and the phase adjustment during the later installation and use process;

[0054] 2. And the constant impedance RF connector of the present invention can achieve precise phase adjustment. Specifically, the internal and external threads of the adjusting screw rod are differential threads. For example, the internal and external pitch ratio is 1:2. When the external thread of the adjusting screw rod rotates one circle around the internal thread of the fixed housing, the inner conductor assembly rotates half a circle around the internal thread of the adjusting screw rod, so as to realize the precise fine adjustment of the inner conductor assembly;

[0055] 3. By adopting the assembly device and assembly method of the present invention, through processes such as automatic feeding, assembly and detection, the time and labor intensity of manual operation are reduced, the production efficiency can be significantly improved, the dependence on manual labor is reduced, and the labor cost is reduced; at the same time, due to the improvement of production efficiency and the guarantee of product quality, the production cost is also indirectly reduced. And because the RF connector of the present invention can realize later fine adjustment, it can ignore the assembly error between the inner and outer conductors, so as to realize automated mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 is the overall cross-sectional view of the phase-adjustable constant impedance RF connector provided by the present invention;

[0057] Figure 2 is the structural schematic diagram of the lock nut provided by the present invention;

[0058] Figure 3 is the structural schematic diagram of the first perspective of the assembly device of the phase-adjustable constant impedance RF connector provided by the present invention;

[0059] Figure 4 is the structural schematic diagram of the second perspective of the assembly device of the phase-adjustable constant impedance RF connector provided by the present invention;

[0060] Figure 5 is the top view of the assembly device of the phase-adjustable constant impedance RF connector provided by the present invention;

[0061] Figure 6 It is a front structural schematic diagram of the rotary worktable provided by the present invention;

[0062] Figure 7 It is a back structural schematic diagram of the rotary worktable provided by the present invention;

[0063] Figure 8 It is a structural schematic diagram of the fixed housing picking mechanism provided by the present invention;

[0064] Figure 9 It is a structural schematic diagram of the adjusting screw assembly mechanism provided by the present invention;

[0065] Figure 10 It is a structural schematic diagram of the adjusting inner conductor assembly picking mechanism provided by the present invention;

[0066] Figure 11 It is a structural schematic diagram of the adjusting inner conductor assembly assembly mechanism provided by the present invention;

[0067] Figure 12 It is a structural schematic diagram of the detection mechanism provided by the present invention;

[0068] Figure 13 It is a structural schematic diagram of the preforming device provided by the present invention.

[0069] In the figure: 1. Fixed housing; 101. Inner conductor groove; 3. Inner guide rod body; 4. Threaded bushing; 5. Elastic contact sleeve; 6. Inner lining sleeve; 7. Welding sleeve; 8. Locking screw; 9. First locking nut; 10. Adjusting screw; 11. Second locking nut; 100. Adjusting inner conductor assembly; 200. Knife-shaped tooth piece;

[0070] 12. Rotary worktable; 121. Positioning tooling;

[0071] 13. Fixed housing picking mechanism; 131. Elastic jaw; 132. Pressing cylinder; 133. Positioning disc; 134. Positioning disc adjusting cylinder;

[0072] 14. Adjusting screw assembly mechanism; 141. Screw jaw; 142. Screw screwing motor; 143. Screw lifting cylinder; 144. Claw; 145. Claw cylinder;

[0073] 15. Adjusting inner conductor assembly picking mechanism; 151. Adjusting inner conductor assembly picking jaw; 152. Adjusting inner conductor assembly flipping cylinder; 153. Adjusting inner conductor assembly picking lifting cylinder; 154. First transverse cylinder; 155. Second transverse cylinder;

[0074] 16. Adjusting inner conductor assembly mechanism; 161. Adjusting inner conductor assembly screwing jaw; 162. Adjusting inner conductor assembly screwing motor; 163. Adjusting inner conductor assembly screwing lifting cylinder;

[0075] 17. Locking screw assembly mechanism;

[0076] 18. Detection mechanism; 181. Detection head; 182. Detection cylinder;

[0077] 19. First feeding device;

[0078] 20. Second feeding device;

[0079] 21. Preforming device; 211. Pressing head; 212. Pressing rod; 213. Preforming cylinder; 214. Preforming tooling. Detailed implementation mode

[0080] The following is a further detailed description of the present invention in conjunction with the accompanying drawings and specific embodiments. According to the following description and the claims, the advantages and features of the present invention will be clearer. It should be noted that the accompanying drawings are all in very simplified forms and use non-precise scales, only for the purpose of conveniently and clearly assisting in explaining the purpose of the embodiments of the present invention.

[0081] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "plurality" is two or more.

[0082] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0083] In addition, the features, operations, and characteristics described in the specification can be combined in any suitable manner to form various embodiments. Similarly, the steps or actions described in the method can also be adjusted in sequence in a manner that can be easily seen by those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for clearly describing a certain embodiment, rather than being a necessary sequence, unless it is stated otherwise that a certain sequence must be followed.

[0084] Embodiment 1

[0085] The present invention provides a phase-adjustable constant-impedance radio frequency connector. Please refer to Figure 1 , which includes a fixed housing 1, an adjustable inner conductor assembly 100, and an adjusting screw 10; the adjustable inner conductor assembly 100 is coaxially installed inside the adjusting screw 10 and is threadedly coupled to the internal thread of the adjusting screw 10; the adjusting screw 10 is coaxially installed inside the fixed housing 1 and is threadedly coupled to the external thread of the fixed housing 1; the pitch of the internal thread of the adjusting screw 10 is greater than the pitch of the external thread, which is a differential thread; when the adjusting screw 10 is rotated, the adjustable inner conductor assembly 100 moves along the central axis, thereby adjusting the depth of the inner guide rod 3 of the adjustable inner conductor assembly 100 inserted into the inner conductor groove 101 of the fixed housing 1, so that the connection of the two inner conductors generates a phase change.

[0086] Specifically, the internal and external threads of the adjusting screw are differential threads. For example, the ratio of the internal and external pitches is 1:2. When the external thread of the adjusting screw rotates one turn around the internal thread of the fixed housing, the adjustable inner conductor assembly rotates half a turn around the internal thread of the adjusting screw, thereby realizing precise fine-tuning of the adjustable inner conductor assembly.

[0087] Specifically, the adjustable inner conductor assembly 100 includes an inner guide rod 3, a threaded bushing 4, an elastic contact sleeve 5, a lining sleeve 6, and a welding sleeve 7; the inner guide rod 3, the elastic contact sleeve 5, the lining sleeve 6, and the welding sleeve 7 are connected in sequence and are sleeved and installed inside the threaded bushing 4;

[0088] The external thread of the threaded bushing 4 is threadedly coupled to the internal thread of the adjusting screw 10. When the threaded bushing 4 is rotated, the inner guide rod 3 moves along the central axis, thereby roughly adjusting the depth of the inner guide rod 3 inserted into the inner conductor groove 101 of the fixed housing 1; when the adjusting screw 10 is rotated, the inner guide rod 3 moves along the central axis, thereby finely adjusting the depth of the inner guide rod 3 inserted into the inner conductor groove 101 of the fixed housing 1.

[0089] Specifically, a locking screw 8 is provided at the tail of the welding sleeve 7, and the locking screw 8 is inserted into the internal thread bush 4 and is threadedly coupled with the internal thread of the internal thread bush 4. As the locking screw 8 rotates, the positions of the inner guide rod body 3, the elastic contact sleeve 5, the inner lining sleeve 6, and the welding sleeve 7 within the internal thread bush 4 are locked; a first locking nut 9 is installed on the external thread of the adjusting screw 10, and the position of the adjusting screw 10 and the fixed housing 1 is locked by the first locking nut 9; a second locking nut 11 is installed on the external thread of the internal thread bush 4, and the position of the internal thread bush 4 and the fixed housing 1 is locked by the second locking nut 11.

[0090] Further, please refer to Figure 2 , both the first locking nut 9 and the second locking nut 11 are non-return anti-loosening nuts; a number of knife-shaped teeth 200 are machined on the locking end face of the nut, and the number of knife-shaped teeth 200 are arranged in layers around the central axis of the nut. When the locking end face of the nut is locked, the knife-shaped teeth 200 bite the other locking end face, enabling the nut to achieve the function of anti-loosening and non-return.

[0091] Embodiment 2

[0092] The present invention also provides an assembly device for a phase-adjustable constant impedance RF connector. Please refer to Figures 3-5 , which includes a rotary worktable 12; a plurality of positioning jigs 121 are provided on the rotary worktable 12 for placing components of the RF connector.

[0093] Circumferentially arranged on the rotary worktable 12 are successively:

[0094] A fixed housing picking mechanism 13 for placing the pre-assembled fixed housing 1 assembly into the positioning jig 121;

[0095] An adjusting screw assembly mechanism 14 for screwing and installing the adjusting screw 10 inside the fixed housing 1;

[0096] An adjusting inner conductor component picking mechanism 15 for placing the pre-assembled adjusting inner conductor component 100 above the adjusting screw 10;

[0097] An adjusting inner conductor component assembly mechanism 16 for screwing and installing the adjusting inner conductor component 100 inside the adjusting screw 10;

[0098] A locking screw assembly mechanism 17 for screwing and installing the locking screw 8 inside the adjusting inner conductor component 100;

[0099] An inspection mechanism 18 for inspecting the quality of the assembled constant impedance RF connector through the inspection mechanism 18;

[0100] The fixed housing picking mechanism 13 is configured with a first feeding device 19 to continuously convey the fixed housing 1 for the fixed housing picking mechanism 13 to pick up the pre-assembled fixed housing 1 assembly and place it in the positioning tooling 121;

[0101] The adjustable inner conductor assembly picking mechanism 15 is configured with a second feeding device 20 to continuously convey the adjustable inner conductor assembly 100 for the adjustable inner conductor assembly picking mechanism 15 to pick up the pre-assembled adjustable inner conductor assembly 100 and place it above the adjusting screw 10;

[0102] One side of the second feeding device 20 is further configured with a pre-forming device 21, which can pre-assemble the inner guide rod body 3, the threaded bushing 4, the elastic contact sleeve 5, the inner lining sleeve 6 and the welding sleeve 7 into the adjustable inner conductor assembly 100.

[0103] In some embodiments, both the first feeding device 19 and the second feeding device 20 include a vibrating bowl and a feeding channel extending outward from the vibrating bowl. The components of the RF connector are arranged in sequence by the vibrating bowl and then conveyed forward through the feeding channel.

[0104] Among them, the first feeding device 19 and the second feeding device 20 are also equipped with feeding hoppers to intermittently supply the components of the RF connector into the vibrating bowl.

[0105] Moreover, the pre-forming device 21 is arranged beside the second feeding device 20. The pre-assembled adjustable inner conductor assembly 100 first gathers in the feeding hopper and then replenishes the vibrating bowl.

[0106] Specifically, please refer to Figure 6 and Figure 7 On the rotary table 12, seven groups of positioning toolings 121 are evenly distributed. The rotary table 12 is driven by a rotary motor 122 to drive the seven groups of positioning toolings 121 to circulate. In the assembly sequence, the seven groups of positioning toolings 121 are successively a fixed housing picking station, an adjusting screw assembly station, an adjustable inner conductor assembly picking station, an adjustable inner conductor assembly assembly station, a locking screw assembly station, a detection station and a discharging station.

[0107] Furthermore, a plurality of groups of unpowered support wheel sets 123 are provided below the rotary table 12 to support the rotary table 12 and enable it to rotate smoothly around the central axis; a locking cylinder 124 is also provided below the rotary table 12. The piston rod of the locking cylinder 124 is inserted into the locking hole of the rotary table 12 from bottom to top to lock the rotation of the rotary table 12 for maintenance after an assembly operation error or for the positioning installation or replacement of the positioning tooling 121 on the rotary table 12.

[0108] Specifically, please refer to Figure 8, the fixed housing picking mechanism 13 includes elastic jaws 131 and a blanking cylinder 132. The blanking cylinder 132 moves the fixed housing 1 picked by the elastic jaws 131 downward into the positioning tooling 121.

[0109] Among them, the elastic jaws 131 are mainly composed of a plurality of movable rubber jaws and pre-tightening springs. Under the action of the pre-tightening springs, the plurality of rubber jaws expand outwards to pick up the fixed housing 1. Specifically, when picking up, the plurality of rubber jaws extend into the inner hole at the tail of the fixed housing 1, and the fixed housing 1 is picked up by the outward supporting force provided by the pre-tightening springs. The blanking cylinder 132 drives the elastic jaws 131 to move the picked fixed housing 1 into the positioning tooling 121 until the fixed housing 1 is firmly inserted into the positioning tooling 121; then the blanking cylinder 132 drives the elastic jaws 131 to move upward to wait for picking up the next fixed housing 1.

[0110] The fixed housing picking mechanism 13 further includes a positioning disk 133 and a positioning disk adjusting cylinder 134. Under the action of the positioning disk adjusting cylinder 134, the positioning disk 133 is driven to move horizontally to connect with the feeding channel of the first feeding device 19; and a profiling hole for the fixed housing is provided in the positioning disk 133 to position the fixed housings 1 transferred from the feeding channel one by one.

[0111] Specifically, please refer to Figure 9 , the adjusting screw assembling mechanism 14 includes screw jaws 141, a screw screwing motor 142, and a screw lifting cylinder 143. The screw jaws 141 pick up the adjusting screw 10, and under the rotation of the screw screwing motor 142, the adjusting screw 10 is screwed into the fixed housing 1; at the same time, it moves downward while rotating under the drive of the screw lifting cylinder 143.

[0112] Furthermore, the adjusting screw assembling mechanism 14 further includes a claw 144 and a claw cylinder 145. The claw 144 is inserted into the card slot on one side of the positioning tooling 121 under the action of the claw cylinder 145 to fix the fixed housing 1 in the positioning tooling 121; when the adjusting screw 10 is screwed into the fixed housing 1, the fixed housing 1 needs to be locked by the claw 144 so that the two can be threadedly connected.

[0113] Specifically, please refer to Figure 10, the adjusting inner conductor component picking mechanism 15 includes an adjusting inner conductor component picking jaw 151, an adjusting inner conductor component flipping cylinder 152, an adjusting inner conductor component picking lifting cylinder 153, a first transverse cylinder 154, and a second transverse cylinder 155 that are sequentially connected to the jaw; under the action of the adjusting inner conductor component picking lifting cylinder 153, the first transverse cylinder 154, and the second transverse cylinder 155, the adjusting inner conductor component picking jaw 151 is driven to move, so as to pick up the adjusting inner conductor component 100 in the feeding channel of the second feeding device 20; and the adjusting inner conductor component flipping cylinder 152 can be flipped 180 degrees, so that the adjusting inner conductor component 100 is placed upright above the adjusting screw 10.

[0114] Specifically, please refer to Figure 11 , the adjusting inner conductor component assembling mechanism 16 includes an adjusting inner conductor component screwing jaw 161, an adjusting inner conductor component screwing motor 162, and an adjusting inner conductor component screwing lifting cylinder 163; under the action of the adjusting inner conductor component screwing motor 162, the adjusting inner conductor component screwing jaw 161 is driven to screw and install the adjusting inner conductor component 100 inside the adjusting screw 10, and at the same time, it rotates and descends under the drive of the adjusting inner conductor component screwing lifting cylinder 163.

[0115] In this embodiment, the structure of the locking screw assembling mechanism 17 is similar to that of the adjusting screw assembling mechanism 14. Similarly, under the combined action of the lifting cylinder and the screwing motor, the locking screw 8 is screwed and installed inside the adjusting inner conductor component 100.

[0116] Specifically, please refer to Figure 12 , the detection mechanism 18 includes a detection head 181 and a detection cylinder 182. The detection head 181 is extended into the assembled constant impedance RF connector through the detection cylinder 182 for detection.

[0117] In one embodiment, the detection head 181 can be an electrical signal connector, which is inserted into the constant impedance RF connector to detect the performance of the constant impedance RF connector.

[0118] Specifically, please refer to Figure 13 , the preforming device 21 includes a pressing head 211, and the pressing head 211 is connected to a preforming cylinder 213 through a pressing rod 212; the inner guide rod body 3, the threaded bushing 4, the elastic contact sleeve 5, the inner lining sleeve 6, and the welding sleeve 7 are placed on the preforming tooling 214, and the adjusting inner conductor component 100 is pre-assembled and formed under the action of the pressing head 211.

[0119] Embodiment III

[0120] The present invention also provides a method for using an assembly device of a phase-adjustable constant-impedance radio frequency connector. Please refer to Figures 1-13 , which includes the following steps:

[0121] Step A: Pre-assembly preparation: Under the action of the pressing head 211, the inner guide rod body 3, the threaded bushing 4, the elastic contact sleeve 5, the inner lining sleeve 6, and the welding sleeve 7 in the pre-forming tooling 214 are pre-assembled to form an adjustable inner conductor assembly 100.

[0122] Step B: Feeding preparation: Put the pre-assembled fixed housing 1 assembly from the previous process into the vibrating plate of the first feeding device 19 for standby; at the same time, put the pre-assembled adjustable inner conductor assemblies 100 one by one into the vibrating plate of the second feeding device 20 for standby.

[0123] Step C: Continuous assembly: First, start the rotating motor 122 to drive the rotating workbench 12 to rotate intermittently according to the assembly work rhythm.

[0124] Step C1: At the fixed housing picking station, a fixed housing 1 enters the positioning disk 133 along the feeding channel for positioning. At the same time, the elastic jaws 131 of the fixed housing picking mechanism 13 clamp the fixed housing 1 and, under the action of the pressing cylinder 132, move it downward to the positioning tooling 121 at this station.

[0125] Step C2: At the adjusting screw assembly station, the screw jaws 141 clamp the adjusting screw 10, and under the action of the screw screwing motor 142 and the screw lifting cylinder 143, screw the adjusting screw 10 into the fixed housing 1.

[0126] Step C3: At the adjustable inner conductor assembly picking station, the adjustable inner conductor assembly picking jaws 151 clamp the adjustable inner conductor assembly 100 on the feeding channel of the second feeding device 20, and under the action of the adjustable inner conductor assembly picking lifting cylinder 153, the first transverse cylinder 154, and the second transverse cylinder 155, move it to directly above the adjusting screw 10; at the same time, identify the positive and negative of the adjusting screw 10 through the camera, and after adjusting the direction through the adjustable inner conductor assembly flipping cylinder 152, place it into the adjusting screw 10.

[0127] Step C4: At the adjustable inner conductor assembly assembly station, the adjustable inner conductor assembly screwing jaws 161 clamp the adjustable inner conductor assembly 100, and under the action of the adjustable inner conductor assembly screwing motor 162 and the adjustable inner conductor assembly screwing lifting cylinder 163, screw and install the adjustable inner conductor assembly 100 inside the adjusting screw 10.

[0128] Step C5: At the locking screw assembly station, the jaws clamp the locking screw 8, and under the action of the screwing motor and the cylinder, screw and install the locking screw 8 inside the adjustable inner conductor assembly 100.

[0129] Step C6: At the detection station, the detection head 181 extends into the assembled constant impedance RF connector under the action of the detection cylinder 182 for detection;

[0130] Step C7: At the discharging station, the detected constant impedance RF connector is discharged from here;

[0131] Step D: The seven groups of positioning jigs 121 on the rotary table 12 correspond to the seven stations in Step C, and the seven groups of positioning jigs 121 circulate in sequence at the seven stations to realize the continuous assembly of the constant impedance RF connector.

[0132] By adopting the assembly device and assembly method of the present invention, through processes such as automatic feeding, assembly and detection, the time and labor intensity of manual operation are reduced, the production efficiency can be significantly improved, the dependence on labor is reduced, and the labor cost is lowered; at the same time, due to the improvement of production efficiency and the guarantee of product quality, the production cost is also indirectly reduced. And because the RF connector of the present invention can achieve post-assembly fine-tuning, it can ignore the assembly errors of the inner and outer conductors, thus realizing automated mass production.

[0133] The above description is only a description of the preferred embodiments of the present invention, and does not limit the scope of the present invention in any way. Any changes and modifications made by those of ordinary skill in the art of the present invention according to the above disclosure shall fall within the protection scope of the claims.

Claims

1. An assembly device for a phase-adjustable constant-impedance RF connector, characterized in that It includes a rotary table (12); seven groups of positioning fixtures (121) are evenly arranged on the rotary table (12) for placing components of a radio frequency connector; the rotary table (12) drives the seven groups of positioning fixtures (121) to circulate under the action of a rotary motor (122), and in the assembly sequence, the seven groups of positioning fixtures (121) are successively a fixed housing picking station, an adjusting screw assembling station, an adjusting inner conductor assembly picking station, an adjusting inner conductor assembly assembling station, a locking screw assembling station, an inspection station, and a discharging station; The circumference of the rotary table (12) is successively provided with: A fixed housing picking mechanism (13) for placing a pre-assembled fixed housing (1) assembly into the positioning fixture (121); An adjusting screw assembling mechanism (14) for screwing and installing an adjusting screw (10) inside the fixed housing (1); An adjusting inner conductor assembly picking mechanism (15) for placing a pre-assembled adjusting inner conductor assembly (100) above the adjusting screw (10); An adjusting inner conductor assembly assembling mechanism (16) for screwing and installing the adjusting inner conductor assembly (100) inside the adjusting screw (10); A locking screw assembling mechanism (17) for screwing and installing a locking screw (8) inside the adjusting inner conductor assembly (100); An inspection mechanism (18) for inspecting the quality of the assembled constant impedance radio frequency connector through the inspection mechanism (18); The fixed housing picking mechanism (13) is configured with a first feeding device (19) for continuously conveying the fixed housing (1) so that the fixed housing picking mechanism (13) can pick up the pre-assembled fixed housing (1) assembly and place it into the positioning fixture (121); The adjusting inner conductor assembly picking mechanism (15) is configured with a second feeding device (20) for continuously conveying the adjusting inner conductor assembly (100) so that the adjusting inner conductor assembly picking mechanism (15) can pick up the pre-assembled adjusting inner conductor assembly (100) and place it above the adjusting screw (10); A pre-forming device (21) is further configured on one side of the second feeding device (20), which can pre-assemble an inner conductor rod body (3), a threaded bushing (4), an elastic contact sleeve (5), a lining sleeve (6), and a welding sleeve (7) into an adjusting inner conductor assembly (100); The inner thread pitch of the adjusting screw (10) is greater than the outer thread pitch, which is a differential thread; when the adjusting screw (10) is rotated, the adjusting inner conductor assembly (100) moves along the central axis, thereby adjusting the depth of the inner conductor rod body (3) of the adjusting inner conductor assembly (100) inserted into the inner conductor groove (101) of the fixed housing (1), so that the connection of the two inner conductors generates a phase change; The inner conductor rod body (3), the elastic contact sleeve (5), the lining sleeve (6), and the welding sleeve (7) are successively connected and sleeved and installed inside the threaded bushing (4); The locking screw (8) is inserted into the threaded bushing (4) and is threadedly coupled with the inner thread of the threaded bushing (4).

2. The assembling device of the phase-adjustable constant-impedance RF connector according to claim 1, characterized in that, Below the rotating workbench (12), there are multiple groups of unpowered support wheel sets (123) for supporting the rotating workbench (12) to rotate smoothly around the central axis; Below the rotating workbench (12), there is also a locking cylinder (124). The piston rod of the locking cylinder (124) is inserted into the locking hole of the rotating workbench (12) from bottom to top to lock the rotation of the rotating workbench (12) for maintenance after an assembly operation error or for the positioning installation or replacement of the positioning tooling (121) on the rotating workbench (12).

3. The assembly device of the phase-adjustable constant-impedance RF connector according to claim 1, characterized in that, The fixed housing picking mechanism (13) includes elastic jaws (131) and a material pressing cylinder (132). The material pressing cylinder (132) moves the fixed housing (1) clamped by the elastic jaws (131) downward into the positioning tooling (121); The elastic jaws (131) are composed of multiple movable rubber jaws and pre-tightening springs. Under the action of the pre-tightening springs, the multiple rubber jaws expand outward to clamp the fixed housing (1); The fixed housing picking mechanism (13) also includes a positioning disk (133) and a positioning disk adjusting cylinder (134). Under the action of the positioning disk adjusting cylinder (134), the positioning disk (133) is driven to move horizontally to connect with the feeding channel of the first feeding device (19); and a profiling hole for the fixed housing is formed in the positioning disk (133) to position the fixed housing (1) transferred from the feeding channel one by one.

4. The assembling device of the phase-adjustable constant-impedance radio frequency connector according to claim 1, characterized in that, The adjusting screw assembly mechanism (14) includes screw jaws (141), a screw screwing motor (142), and a screw lifting cylinder (143). The screw jaws (141) clamp the adjusting screw (10) and, under the rotation of the screw screwing motor (142), screw the adjusting screw (10) into the fixed housing (1); at the same time, it rotates and moves downward under the drive of the screw lifting cylinder (143); The adjusting screw assembly mechanism (14) also includes a claw (144) and a claw cylinder (145). The claw (144) is inserted into the card slot on one side of the positioning tooling (121) under the action of the claw cylinder (145) to fix the fixed housing (1) in the positioning tooling (121); The adjusting inner conductor assembly picking mechanism (15) includes an adjusting inner conductor assembly picking jaw (151) and an adjusting inner conductor assembly flipping cylinder (152), an adjusting inner conductor assembly picking lifting cylinder (153), a first transverse movement cylinder (154), and a second transverse movement cylinder (155) connected to the jaw in sequence; under the action of the adjusting inner conductor assembly picking lifting cylinder (153), the first transverse movement cylinder (154), and the second transverse movement cylinder (155), the adjusting inner conductor assembly picking jaw (151) is driven to move to pick up the adjusting inner conductor assembly (100) in the feeding channel of the second feeding device (20); and the adjusting inner conductor assembly flipping cylinder (152) can flip 180 degrees to place the adjusting inner conductor assembly (100) in the correct position above the adjusting screw (10); The adjusting inner conductor assembly assembling mechanism (16) includes an adjusting inner conductor assembly screwing jaw (161), an adjusting inner conductor assembly screwing motor (162), and an adjusting inner conductor assembly screwing lifting cylinder (163); under the action of the adjusting inner conductor assembly screwing motor (162), the adjusting inner conductor assembly screwing jaw (161) is driven to screw and install the adjusting inner conductor assembly (100) inside the adjusting screw rod (10), and at the same time, it rotates and descends under the drive of the adjusting inner conductor assembly screwing lifting cylinder (163); The detecting mechanism (18) includes a detecting head (181) and a detecting cylinder (182), and the detecting head (181) is extended into the assembled constant impedance radio frequency connector through the detecting cylinder (182) for detection.

5. The assembling device of the phase-adjustable constant-impedance RF connector according to claim 1, characterized in that, The preforming device (21) includes a pressing head (211), and the pressing head (211) is connected to a preforming cylinder (213) through a pressing rod (212); the inner guide rod body (3), the threaded bushing (4), the elastic contact sleeve (5), the inner lining sleeve (6), and the welding sleeve (7) are placed on the preforming tooling (214), and the adjusting inner conductor assembly (100) is pre-assembled and formed under the action of the pressing head (211).

6. A method of using an assembly device for a phase-adjustable constant-impedance RF connector, characterized in that, It includes the following steps: Step A: Pre-assembly preparation: Under the action of the pressing head (211), the inner guide rod body (3), the threaded bushing (4), the elastic contact sleeve (5), the inner lining sleeve (6), and the welding sleeve (7) in the preforming tooling (214) are pre-assembled and formed into the adjusting inner conductor assembly (100); the inner guide rod body (3), the elastic contact sleeve (5), the inner lining sleeve (6), and the welding sleeve (7) are connected in sequence and sleeved and installed inside the threaded bushing (4); Step B: Feeding preparation: The fixed housing (1) is placed in the vibrating disk of the first feeding device (19) for standby; at the same time, the pre-assembled and formed adjusting inner conductor assemblies (100) are placed in the vibrating disk of the second feeding device (20) one by one for standby; Step C: Continuous assembly: First, start the rotating motor (122) to drive the rotating workbench (12) to rotate intermittently according to the assembly work rhythm; Step C1: At the fixed housing picking station, a fixed housing (1) enters the positioning disk (133) for positioning along the feeding channel. At the same time, the elastic jaw (131) of the fixed housing picking mechanism (13) clamps the fixed housing (1), and under the action of the pressing cylinder (132), it is transferred downward to the positioning tooling (121) at this station; Step C2: At the adjusting screw rod assembly station, the screw rod jaw (141) clamps the adjusting screw rod (10), and under the action of the screw rod screwing motor (142) and the screw rod lifting cylinder (143), the adjusting screw rod (10) is screwed into the fixed housing (1); Step C3: At the adjusting inner conductor assembly picking station, adjust the clamping jaws (151) of the inner conductor assembly picker to clamp the adjusting inner conductor assembly (100) on the feeding channel of the second feeding device (20). Under the action of the lifting cylinder (153), the first transverse movement cylinder (154), and the second transverse movement cylinder (155) of the adjusting inner conductor assembly picker, transfer it to directly above the adjusting screw (10). At the same time, identify the front and reverse of the adjusting screw (10) through the camera, and after adjusting the direction through the flipping cylinder (152) of the adjusting inner conductor assembly, place it inside the adjusting screw (10). Step C4: At the adjusting inner conductor assembly assembling station, adjust the screwing jaws (161) of the inner conductor assembly to clamp the adjusting inner conductor assembly (100). Under the action of the screwing motor (162) and the screwing lifting cylinder (163) of the adjusting inner conductor assembly, screw and install the adjusting inner conductor assembly (100) inside the adjusting screw (10). The internal thread pitch of the adjusting screw (10) is greater than the external thread pitch, which is a differential thread. When the adjusting screw (10) is rotated, the adjusting inner conductor assembly (100) moves along the central axis, thereby adjusting the depth of the inner guide rod body (3) of the adjusting inner conductor assembly (100) inserted into the inner conductor groove (101) of the fixed housing (1), so that the connection of the two inner conductors generates a phase change. Step C5: At the locking screw assembling station, the clamping jaws clamp the locking screw (8). Under the action of the screwing motor and the cylinder, screw and install the locking screw (8) inside the adjusting inner conductor assembly (100). The locking screw (8) is inserted into the internal thread bushing (4) and is threadedly coupled with the internal thread of the internal thread bushing (4). Step C6: At the detection station, the detection head (181) extends into the assembled constant impedance RF connector under the action of the detection cylinder (182) for detection. Step C7: At the discharging station, the detected constant impedance RF connector is unloaded from here. Step D: The seven groups of positioning jigs (121) on the rotary table (12) correspond to the seven stations in Step C, and the seven groups of positioning jigs (121) circulate in sequence at the seven stations to realize the continuous assembly of the constant impedance RF connector.

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