A modular manufacturing device and method for thin film reflective antenna film structure

Abstract

The present invention discloses a modular manufacturing device and method for a thin-film reflective antenna membrane structure. The device comprises a triangular cable net shaping device mounted on a workbench, the triangular cable net shaping device being equipped with a linear motion component, a planar motion component, a cantilever component, and a positioning pin. The cantilever component is equipped with a cable net tension adjustment device, and the positioning pin is equipped with a force measuring device. The triangular cable net unit is wound around the positioning pin and tensioned into a triangle. The workbench is equipped with a distance measuring device for measuring the distance between the cable segments of the triangular cable net unit, as well as a rope compression device. The triangular cable net unit is affixed to a thin film to form a modular triangular cable membrane structure unit. The present invention can meet interchangeability requirements and modularize the cable membrane structure unit. It can also achieve the production of triangular cable net structures of any size and shape, with strong versatility. It forms an integrated cable membrane unit with an orderly combination and accurate unit shape and size.

Description

Technical Field

[0001] The invention belongs to the technical field of thin film antennas, and relates to a modular manufacturing device and a modular manufacturing method for a thin film reflective antenna thread film structure. Background Art

[0002] Thin-film reflector antennas are a type of high-precision reflector antenna. Their main structure consists of three parts: a base support structure, a cable net structure, and a reflector surface. The cable net structure is further divided into a front cable net, a rear cable net, and vertical cables. The front net surface is formed with multiple triangular structures, and the reflector surface is divided into multiple triangular membranes laid on the front cable net surface, forming an integrated cable-membrane structure.

[0003] The traditional cable-membrane structure needs to be manufactured separately. First, each cable segment is cut according to the designed cable segment length and the tension in the cable, and then manually woven into the cable net as a whole. Then, triangular membrane sheets of designed size are cut out and pasted on the basic cable net structure in sequence to complete the overall production of the cable-membrane structure.

[0004] Current fabrication methods have several shortcomings. First, the cable-membrane structure is a monolithic structure, with adjacent triangular membranes sharing a common cable. Replacing a single cable segment or triangular membrane requires disassembling the entire surrounding structure, significantly impacting interchangeability. Second, the cable net structure has a large number of segments, requiring manual weaving based on the net's topology, a complex and tedious process. Third, the membrane must be pre-cut into the desired triangle shape and then sequentially affixed to the cable net. Because the electrode membranes are attached after the antenna base cable net structure is constructed and suspended in mid-air, it's difficult to ensure uniform adhesion between adjacent triangular membranes, resulting in a smooth surface and poor alignment with the cable net shape. These shortcomings can cause the fabricated antenna prototype to deviate from the design, hindering prototype testing. Therefore, a fabrication method for thin-film reflector antennas is needed that addresses these issues without switching workstations. Summary of the Invention

[0005] In order to solve the above-mentioned defects in the prior art, the purpose of the present invention is to provide a modular manufacturing device for a thin film reflective antenna filament structure, which solves the problems of lack of interchangeability, complicated manufacturing process, and poor manufacturing effect in the prior art.

[0006] The present invention is achieved through the following technical solutions.

[0007] One aspect of the present invention provides a modular manufacturing device for a thin film reflective antenna filament structure, comprising:

[0008] A workbench for fixing the triangular cable net shaping device and a positioning pin for tensioning the rope that passes through the table top;

[0009] A triangular cable net shaping device is configured with a linear motion component, a planar motion component and a cantilever component for shaping the unit ropes of the triangular cable net;

[0010] The triangular cable net units are respectively wound around the positioning pins of the triangular cable net shaping device through ropes and are stretched into a triangular cable net with balanced tension;

[0011] The cable net tension adjustment device is fixed on the triangular cable net shaping device and is used to provide traction and adjust the tension of the triangular cable net unit;

[0012] The force measuring device is fixed on the workbench and the linear motion assembly of the triangular cable net shaping device respectively, and measures the rope tension in the X-axis and Y-axis directions of the workbench through the force sensor;

[0013] The distance measuring device is fixed on the workbench and the triangular cable net shaping device respectively, and is used to measure the distance between the unit cable segments of the triangular cable net;

[0014] A rope tightening device is used to position and lock the rope on the rope ring of the cable net positioning pin of the triangular cable net unit;

[0015] Film and tape are used to stick the prepared triangular cable net units together to form modular triangular cable-membrane structural units.

[0016] Preferably, the workbench includes a first table top and a third table top distributed in a stepped manner, a second table top is provided below the front side of the first table top, the first table top is provided with a through hole and a long strip groove parallel to the X direction of the workbench, and an adjustable foot is provided at the bottom of the workbench.

[0017] Preferably, the linear motion component of the triangular cable net shaping device is fixed on the second surface of the workbench, located directly below the long strip groove and parallel to the groove; the planar motion component is fixed on the third surface of the workbench, and a first slide is provided on the planar motion component. The planar motion component is vertically connected to the cantilever component, and the cantilever component extends from the planar motion device and is placed on the upper surface of the first surface of the workbench.

[0018] Preferably, the planar motion assembly includes a second slide, a transverse axis assembly, a pair of longitudinal axis assemblies and a synchronous motion rod. The pair of longitudinal axis assemblies are fixed in parallel on the third surface of the workbench, and their directions are parallel to the Y direction of the workbench; the transverse axis assembly spans the two longitudinal axis assemblies, and its direction is perpendicular to the first longitudinal axis assembly; the second slide is slidably connected to the transverse axis assembly; and the synchronous motion rod is connected to the ends of the pair of longitudinal axis assemblies.

[0019] Preferably, the cantilever assembly includes a J-shaped extension rod component, the top plate of the J-shaped extension rod component is placed on the first table, the bottom plate is connected to the second slide of the planar motion component, and a fixed head is provided at the end of the top plate of the J-shaped extension rod component, and a positioning pin for tensioning the rope passes through the fixed head.

[0020] Preferably, the cable net tension adjustment device is arranged on one side of the cantilever assembly, and the cable net tension adjustment device is connected to the second rope end clip to clamp the rope through the traction device, and pulls the rope along the Y direction of the workbench.

[0021] Preferably, a pair of force measuring devices are respectively installed with a force sensor and a positioning pin for tensioning the rope. The first force measuring device is located on the first table, and the second force measuring device is installed on the slide of the linear motion component. The first and second positioning pins are both located on the top of the force measuring device, and the first positioning pin is positioned and installed through the through hole of the first table, and the second positioning pin is limited in the long strip groove of the first table to restrict its linear movement.

[0022] Preferably, the distance measuring device includes three pairs of distance sensors and blocks, the first distance sensor is installed on the first slide of the linear motion assembly, and the first block is fixed on the first force measuring device; the second and third distance sensors are respectively arranged on the fixed heads at the end of the cantilever assembly without interfering with each other, the second block is arranged on the front edge of the first table, parallel to the X direction of the workbench; the third block is arranged on the left edge of the first table, parallel to the Y direction of the workbench; the lengths of the three cable segments of the triangular cable net unit are obtained by measuring the distances between the distance sensors and the blocks respectively.

[0023] Preferably, the triangular cable net unit ropes are wound around the positioning pins in an external winding or cross winding manner.

[0024] Another aspect of the present invention provides a modular manufacturing method for the modular manufacturing device of the thin film reflective antenna filament structure, comprising:

[0025] Adjust the adjustable feet to make the workbench level;

[0026] According to the measured data of the distance measuring device, the second and third positioning pins are moved by controlling the coordinated motion of the linear motion component and the planar motion component of the triangular cable net shaping device, and the length of the cable segment of the triangular cable net unit is adjusted together with the first positioning pin to achieve the shaping of the triangular cable net unit;

[0027] The rope is passed around three dowel pins to form a triangular cable net;

[0028] The cable net tension adjustment device tensions and pulls the triangular cable net unit under the control of the power source. The force sensor determines that each cable segment has reached the set tension. The rope is positioned and locked on the rope ring of the cable net positioning pin through the rope tightening device.

[0029] Cut off the excess rope ends at both ends of the rope to keep the triangular cable net in a taut state and complete the production of the triangular cable net unit;

[0030] The prepared triangular cable net units are pasted together to form modular triangular cable-membrane structural units.

[0031] The present invention adopts the above technical solution, which has the following beneficial effects:

[0032] 1. The triangular cable-membrane structure unit module produced by the method of the present invention can be used to replace the electrode surface unit of the thin film reflector antenna. The electrode surface of the antenna is composed of multiple triangular cable-membrane structure units. When one of the triangular cable-membrane structure units is damaged, mismatched in size, loose, etc., it is necessary to replace the unit module to achieve modular production and replacement.

[0033] 2. The multiple triangular cable-membrane structural units on the antenna electrode surface have different shapes and sizes. Using the method of the present invention, it is only necessary to control the linear motion component and the planar motion component to determine the triangles of different shapes and sizes. The device of the present invention has strong versatility.

[0034] 3. The triangular cable-membrane structural unit manufactured by the method of the present invention uses three distance sensors to ensure the accuracy of the shape and size of the triangle in real time during the manufacturing process, and the triangle shaping device can achieve the above-mentioned beneficial effects; two biaxial force sensors are used to ensure the accuracy of the tension of the three cable segments, and the cable net tension adjustment device can achieve the above-mentioned beneficial effects; and the film is flatly pasted and cut after the triangular cable net unit is tensioned and determined, which ensures that the film is accurately flattened during use. Qualified products with accurate shape, size and tension can be obtained by the method of the present invention.

[0035] 4. The triangular cable-membrane structural unit produced by the present invention has three sides, corresponding to the cable segment numbering in the antenna electrode surface design. Existing electrode surface production methods use independent cable segments and independent triangular membranes, which are then woven together to form an electrode surface, making it very easy for numbering errors to occur. Compared to existing electrode surface production methods, the resulting unit module features an orderly, integrated, integrated cable mesh unit, eliminating the risk of sequence or numbering errors. Each cable-membrane structural unit comprises a separate triangular cable mesh unit and triangular membrane. When woven together into a mesh, only the modules need to be connected, eliminating the drawback of cable segment numbering confusion and simplifying the electrode surface assembly process.

[0036] 5. The device provided by the method of the present invention is simple and efficient. The triangular cable net unit can be manufactured on a workbench. Without changing the workbench, the film can be laid, pasted, and cut to complete the production of the triangular cable membrane structure unit module, thereby improving the efficiency of antenna prototype production. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of this application, and do not constitute an improper limitation of the present invention. In the drawings:

[0038] Figure 1 It is a schematic diagram of the structure of the device of the present invention;

[0039] Figure 2 It is a structural schematic diagram of the workbench of the present invention;

[0040] Figure 3 is a top view of the triangular cable net shaping device of the present invention;

[0041] Figure 4 It is a structural schematic diagram of the cable net tension adjustment device of the present invention;

[0042] Figure 5 is a schematic structural diagram of a first force measuring device of the present invention;

[0043] Figure 6 is a schematic structural diagram of a second force measuring device of the present invention;

[0044] Figure 7 It is a structural schematic diagram of the distance measuring device of the present invention;

[0045] Figure 8 This is a schematic diagram of the structure of the triangular cable net unit of the present invention adopting an external winding type;

[0046] Figure 9 This is a schematic diagram of the structure of the triangular cable net unit of the present invention adopting a cross-winding type;

[0047] Figure 10 It is a structural schematic diagram of the pressing device of the present invention;

[0048] Figure 11 It is a schematic diagram of the manufacturing process of the triangular cable membrane structure of the present invention.

[0049] In the figure, 1. Workbench, 101. First tabletop, 102. Second tabletop, 103. Third tabletop, 104. Adjustable feet, 101-1. Through hole, 101-2. Long strip groove;

[0050] 2. Triangular cable net shaping device, 201. Linear motion assembly, 202. Planar motion assembly, 203. Cantilever assembly; 201-1. First slide; 202-1. Second slide, 202-2. Transverse axis assembly, 202-3. First longitudinal axis assembly, 202-4. Second longitudinal axis assembly, 202-5. Synchronous motion rod; 203-1. J-shaped extension rod bottom plate, 203-2. J-shaped extension rod top plate, 203-3. Fixed head, 203-4. First rope end clip, 203-5. Fixed pulley; 204. First locating pin, 205. Second locating pin, 206. Third locating pin;

[0051] 3. Cable net tension adjustment device, 301. Traction device, 302. Fixing frame, 303. Second rope end clip;

[0052] 4. Force measuring device, 401. First force measuring device, 402. Second force measuring device, 401-1. First force sensor, 401-2. Fixed bracket; 402-1. Second force sensor, 402-2. Fixed base;

[0053] 5. Triangular cable net unit, 501. Cable segment 1, 502. Cable segment 2, 503. Cable segment 3;

[0054] 6. Distance measuring device, 601. First distance measuring device, 602. Second distance measuring device, 603. Third distance measuring device, 601-1. First distance sensor, 601-2. First stopper; 602-1. Second distance sensor, 602-2. Second stopper; 603-1. Third distance sensor, 603-2. Third stopper;

[0055] 7. Rope tightening device, 701. Pressing ring, 702. Pad, 703. Punch, 704. Punching hammer;

[0056] 8. Film; 9. Adhesive tape; 10. Triangular cable-membrane structural unit. DETAILED DESCRIPTION

[0057] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The exemplary embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0058] like Figure 1As shown, an embodiment of the present invention provides a modular manufacturing device for a thin film reflective antenna pellicle structure, comprising a workbench 1, a triangular cable net shaping device 2, a cable net tension adjustment device 3, a force measuring device 4, a triangular cable net unit 5, a distance measuring device 6, and a rope clamping device 7. The triangular cable net shaping device 2 is mounted on the workbench 1, and the triangular cable net unit 5 is wound around the triangular cable net shaping device 2. The cable net tension adjustment device 3 is fixed to the triangular cable net shaping device 2. The force measuring device 4 is provided at the end of the triangular cable net shaping device 2 around which the triangular cable net unit 5 is wound. The distance measuring device 6 is placed on the workbench 1 for real-time measurement of the position and size of the triangular cable net unit 5. The rope clamping device 7 is fixed to the rope loops of the three cable net positioning pins of the triangular cable net unit 5 on the workbench 1, cooperating to position and lock the triangular cable net unit 5.

[0059] like Figure 2 As shown, the workbench 1 includes a first surface 101, a second surface 102, and a third surface 103. The first surface 101 and the third surface 103 are arranged in a stepped manner, with the second surface 102 located below the first surface 101 at the front of the workbench, and the third surface 103 located at the center and rear of the workbench. The first surface 101 is provided with a through hole 101-1 and a strip-shaped slot 101-2, which is parallel to the X-direction of the workbench. The bottom of the workbench 1 is provided with adjustable feet 104, which can be used to adjust the levelness of the workbench to ensure the measurement accuracy of the force measuring device.

[0060] Figure 3 Combine Figure 1 As shown, the triangular cable net shaping device 2 includes a linear motion component 201, a planar motion component 202, a cantilever component 203, a first positioning pin 204, a second positioning pin 205 and a third positioning pin 206; the linear motion component 201 is fixed on the second table 102, located directly below the strip long groove 101-2 and parallel to the groove, and its direction is parallel to the X direction of the workbench; the planar motion component 202 is vertically connected to the cantilever component 203, the planar motion component 202 is fixed on the third table 103, and the cantilever component 203 extends from the planar motion component 202 and rests on the upper surface of the first table 101, so that the movement of the planar motion component can drive the cantilever component to slide in the plane of the first table.

[0061] The linear motion component 201 is fixed on the second table 102. A first slide 201-1 is provided on the linear motion component 201. The first slide 201-1 can realize linear reciprocating sliding on the linear motion component.

[0062] Planar motion assembly 202 includes a second slide 202-1, a transverse axis assembly 202-2, a first longitudinal axis assembly 202-3, a second longitudinal axis assembly 202-4, and a synchronous motion rod 202-5. The first and second longitudinal axis assemblies 202-3 and 202-4 are fixed parallel to the third table 103, oriented parallel to the worktable's Y direction. Transverse axis assembly 202-2 spans the two longitudinal axis assemblies, oriented perpendicular to first longitudinal axis assembly 202-3. Second slide 202-1 is mounted on the transverse axis assembly, allowing it to slide linearly back and forth along the X direction on transverse axis assembly 202-2. A synchronous motion rod 202-5 is connected to the ends of the two longitudinal axis assemblies to achieve synchronized motion.

[0063] Figure 4 Combine Figure 3 As shown, the cantilever assembly 203 includes a J-shaped extension member bottom plate 203-1, a J-shaped extension member top plate 203-2, a fixed head 203-3, a first rope end clip 203-4, and a fixed pulley 203-5. The J-shaped extension member top plate 203-2 is placed on the first table 101. The J-shaped extension member bottom plate 203-1 is connected to the second slide 202-1 of the planar motion assembly. The J-shaped extension member is installed perpendicular to the cross-axis assembly 202-2. The fixed head 203-3 is installed at the end of the J-shaped extension member top plate 203-2. The fixed head 203-3 has a cylindrical through hole, and a third locating pin 206 extends through the cylindrical through hole. The first rope end clip 203-4 is installed at the end of the third locating pin 206. The fixed pulley 203-5 is installed at the front corner of the J-shaped extension member top plate 203-2. A cable net tension adjustment device 3 is provided on the side of the J-shaped extension rod member top plate 203-2.

[0064] The cable net tension adjustment device 3 includes a traction device 301, a fixing frame 302 and a second rope end clip 303; the fixing frame 302 is fixed to one side of the long end of the J-shaped extension rod component 203-1, and the traction device 301 is installed on it. The traction direction is along the Y direction of the workbench. The head of the traction device is provided with a second rope end clip 303 for clamping the rope. The traction device has the function of providing traction force to adjust and maintain the tension of the cable net.

[0065] like Figure 5 、 Figure 6 Combine Figure 2 As shown, the force measuring device 4 includes a first force measuring device 401 and a second force measuring device 402. The first force measuring device 401 is fixed directly below the through hole 101-1 of the first table 101 through a fixing bracket 401-2. A first force sensor 401-1 is installed on the first force measuring device 401; a first positioning pin 204 is threadedly connected to the top of the first force sensor.

[0066] like Figure 6As shown, the second force measuring device 402 is installed on the first slide 201-1 of the linear motion assembly 201 through a fixed base 402-2. A second force sensor 402-1 is provided on the fixed base 402-2. A second positioning pin 205 is threadedly connected to the top of the second force sensor, and the top of the second positioning pin 205 passes through the long strip groove 101-2.

[0067] The first positioning pin 204 , the second positioning pin 205 and the third positioning pin 206 are all arranged in directions perpendicular to the first table surface 101 .

[0068] The first force sensor 401 - 1 and the second force sensor 402 - 1 both measure in the X-axis and Y-axis directions, and the fixed orientations of the two sensors are to align the X-axis direction with the X-direction of the workbench.

[0069] like Figure 7 As shown, one end of the rope of the triangular cable net unit 5 is clamped on the first rope end clip 203-4 and passes through the third positioning pin 206, the first positioning pin 204, the second positioning pin 205, and the third positioning pin 206 in sequence to form a triangular cable net. The other end passes through the fixed pulley 203-5 and is clamped on the second rope end clip 303. For clarity, the triangular cable net unit between the first positioning pin 204 and the second positioning pin 205 is named cable segment 1 501, the triangular cable net unit between the second positioning pin 205 and the third positioning pin 206 is named cable segment 2 502, and the triangular cable net unit between the third positioning pin 206 and the first positioning pin 204 is named cable segment 3 503. The three cable segments are stretched to form a triangular cable net.

[0070] The triangular cable net unit 5 can be wound around the positioning pin in an external winding manner, with the rope being wound around the outside of the positioning pin in sequence, such as Figure 8 As shown, it can also be a cross-wrap type, where the ropes cross at the positioning pins, such as Figure 9 shown.

[0071] Under the coordinated movement of the linear motion component 201 and the planar motion component 202, the triangular cable net shaping device 2 can move the second positioning pin 205 and the third positioning pin 206 to the required position, forming the three vertices of the triangle together with the first positioning pin 204, thereby completing the shaping of the triangle.

[0072] The triangular cable net unit 5 is tensioned using three positioning pins, forming a tensioned triangular structure. Furthermore, the first positioning pin 204 at the top of the first force-measuring device 401 is positioned and installed through the through-hole 101-1 of the first table 101. The second positioning pin 205 at the top of the second force-measuring device 402 is retained within the long strip slot 101-2 of the first table 101, restricting its linear movement.

[0073] The cable net tension adjustment device 3 is fixed to one side of the cantilever assembly 203 and is connected to the triangular cable net unit 5 cable net to provide traction and cable net tension adjustment capabilities.

[0074] like Figure 7 As shown, the distance measuring device 6 includes a first distance measuring device 601, a second distance measuring device 602 and a third distance measuring device 603; the first distance measuring device 601 includes a first distance sensor 601-1 and a first stop 601-2; the second distance measuring device 602 includes a second distance sensor 602-1 and a second stop 602-2; the third distance measuring device 603 includes a third distance sensor 603-1 and a third stop 603-2. The first distance sensor 601-1 is set on the first slide 201-1 of the linear motion component 201, and the first stop 601-2 is set on the fixed bracket 401-2 of the first force measuring device 401. The first distance sensor 601-1 is perpendicular to the first stop 601-2. The length L1 of the cable segment 501 is calculated by measuring the distance between the first distance sensor 601-1 and the first stop 601-2; the second distance sensor 602-1 is set on the side of the fixed head 203-3 at the end of the cantilever component 203, and the second stop 602-2 is set at the front edge of the first table 101, parallel to the X direction of the workbench, and parallel to the cantilever component. 203, the second distance sensor 602-1 is perpendicular to the second stopper 602-2, and the length L2 of the second cable segment 502 is calculated by measuring the distance between the second sensor 602-1 and the second stopper 602-2; the third distance sensor 603-1 is set on the side of the fixed head 203-3 at the end of the cantilever assembly 203, and the third stopper 603-2 is set on the left edge of the first table 101, parallel to the Y direction of the workbench, and the third distance sensor 603-1 is perpendicular to the second stopper 603-2. The length L3 of the third cable segment 503 is calculated by measuring the distance between the second sensor 603-1 and the second stopper 603-2.

[0075] The second distance sensor 602-1 and the third distance sensor 603-1 are mounted on the same side of the fixed head 203-3 and are distributed on different sides of the fixed pulley 203-5 to avoid interference.

[0076] The first distance sensor, the second distance sensor, and the third distance sensor adopt a non-contact measurement method, such as a laser distance measurement method, an ultrasonic distance measurement method, a radar distance measurement method, etc., and preferably adopt a laser distance measurement method.

[0077] In particular, the length of the second stopper 602-2 should not be shorter than the horizontal movable distance of the second slide 202-1 on the planar motion assembly 202; the length of the third stopper 603-2 should not be shorter than the longitudinal movable distance of the second slide 202-1 on the planar motion assembly 202.

[0078] like Figure 10 As shown, the rope tightening device 7 includes a pressing ring 701, a backing plate 702, a punch 703, and a punching hammer 704. The backing plate 702, the punch 703, and the punching hammer 704 are movable components. The backing plate 702 is placed under the pressing ring 701, and the punch 703 and the punching hammer 704 are used to press the pressing ring onto the rope ring.

[0079] like Figure 11 As shown, the film 8, the adhesive tape 9, and the triangular cable-membrane structure unit 10 formed by pasting and cutting in the present invention.

[0080] The modular manufacturing method of the thin film reflective antenna filament structure modular manufacturing device of the present invention is carried out according to the following steps:

[0081] Step 1: Adjust the adjustable feet 104 so that the first table surface 101 of the workbench is in a horizontal state to ensure the accuracy and validity of subsequent force measurement data and distance measurement data;

[0082] Step 2: According to the measured data of the distance measuring device, the triangular cable net shaping device 2 is controlled to adjust the cable segment length of the triangular cable net unit 5 to complete the shaping of the triangular cable net unit;

[0083] Under the control of the power source, the first slide 201-1 of the triangular cable net shaping device 2 is controlled to slide on the linear motion component 201, and drives the second positioning pin 205 to move, so that the length of the cable segment 1 501 of the triangular cable net unit 5 reaches L1. During the movement, the real-time distance is measured by the first distance measuring device 601;

[0084] Under the control of the power source, the transverse axis assembly 202-2 of the planar motion assembly 202 of the triangular cable net shaping device is controlled to move on the first longitudinal axis assembly 202-3 and the second longitudinal axis assembly 202-4, and the second slide 202-1 is controlled to slide on the transverse axis assembly, thereby driving the third positioning pin 206 on the cantilever assembly 20 to move, so that the lengths of the second cable segment 502 and the third cable segment 503 reach L2 and L3 respectively. During the movement, the second distance measuring device 602 and the third distance measuring device 603 simultaneously measure the real-time distance;

[0085] When controlling the movement of the second slide 202-1, the order of the movement of the horizontal and vertical axes can be horizontal first and then vertical, or vertical first and then horizontal, or both axes can move simultaneously; under the coordinated movement of the linear motion component 201 and the planar motion component 202, the triangular cable net shaping device 2 can move the second positioning pin 205 and the third positioning pin 206 to the required positions, forming the three vertices of the triangle together with the first positioning pin 204, thereby completing the shaping of the triangular cable net unit;

[0086] Step 3: Wrap the rope between the three positioning pins to form a triangular cable net unit 5;

[0087] One end of the triangular cable net unit 5 is clamped at the first rope end clip 203-4 at the end of the cantilever assembly 203, and a rope loop is formed near the third positioning pin 206, and a pressure ring 701 is put on, and the rope loop is put on the third positioning pin 206; the rope is wound around the first positioning pin 204, and a rope loop is formed near the first positioning pin 204, and a pressure ring 701 is put on, and the rope loop is put on the first positioning pin; the rope is wound around the second positioning pin 205, and a rope loop is formed near the second positioning pin 205, and a pressure ring 701 is put on, and the rope loop is put on the second positioning pin;

[0088] After passing around the second positioning pin 205, the rope continues to wrap back to the third positioning pin 206. The other end of the rope passes through the pressure ring 701, passes around the third positioning pin 206 and the fixed pulley 203-5 in sequence, and is clamped to the second rope end clip 303 of the cable net tension adjustment device 3. At this point, the rope wrapped between the three positioning pins forms a triangular cable net unit 5.

[0089] Step 4: The cable net tension adjustment device 3 tensions the triangular cable net unit 5 under the control of the power source. The force sensor determines that each cable segment has reached the set tension. The rope is positioned and locked on the rope ring of the cable net positioning pin through the rope tightening device:

[0090] The tension in the third cable segment 503 is calculated based on the data from the first load cell 401-1 at the first positioning pin 204. When the tension reaches the set tension T3 of the third cable segment, the traction is stopped. Then, the backing plate 702 is placed under the pressure ring 701. The punch 703 and the punch hammer 704 are used to press the pressure ring onto the rope ring, thus completing the determination of the tension in the third cable segment 503.

[0091] The cable net tension adjustment device 3 releases the traction and re-tows the triangular cable net unit 5. The tension in the cable segment 1 501 is calculated based on the data from the second force sensor 402-1 at the second positioning pin 205. When the tension reaches the set tension T1 of the cable segment 1, the traction is stopped. The pad is placed under the pressure ring, and the punch and punch hammer are used to press the pressure ring onto the rope ring to complete the determination of the tension in the cable segment 1 501.

[0092] The cable net tension adjustment device 3 loosens the traction again and re-tows the triangular cable net unit. The tension in the second cable segment 502 is calculated based on the data from the second force sensor 402-1 at the second positioning pin 205. When the tension reaches the set tension T2 of the second cable segment, the traction is stopped. The pad is placed under the pressure ring, and the pressure ring is pressed against the rope ring using a punch and a punch hammer to complete the determination of the tension in the second cable segment 502. At this point, the cable force adjustment of the three cable segments of the triangular cable net unit is completed.

[0093] Step 5: Cut off the excess rope ends at both ends of the rope, keep the triangular cable net in a taut state, and complete the production of the triangular cable net unit;

[0094] Step 6: Making a modular triangular cable-membrane structure unit 10;

[0095] Cut a rectangular film 8, the length of the rectangle is greater than the length of the base of the triangle, and the width is equal to the height of the triangle. The reverse side of the film is facing upwards and laid flatly under the triangular cable net unit 5;

[0096] Use special adhesive tape 9 to stick the three tensioned cable segments and the film together. After sticking, cut off the excess film along the edge of the tape to complete the sticking of the triangular film, and obtain a modular triangular cable-membrane structure unit 10.

[0097] The linear motion component 201 and the planar motion component 202 respectively retreat a short distance toward the first positioning pin 204 to relax the triangular cable net unit 5, remove the triangular cable net with the film attached, and complete the production of the triangular cable-membrane structure unit 10.

[0098] During use, the triangular cable-membrane structure units in a relaxed state need to be tensioned and hung to the corresponding position. For example, in a thin film reflector antenna, several triangular cable-membrane structure units can be tensioned into an integral cable-membrane structure after being hung together. Each triangular cable-membrane structure unit in a tensioned state retains the cable segment length and internal force of the cable segment at the time of manufacture.

[0099] The present invention effectively solves the problems of complicated electrode surface manufacturing, poor interchangeability, large errors, etc. of existing thin film reflector antennas. A triangular cable membrane structural unit can be obtained by the method of the present invention.

[0100] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some of the technical features therein according to the disclosed technical content without creative labor, and these substitutions and modifications are all within the protection scope of the present invention.

Claims

1. A modular manufacturing device for a thin film reflective antenna film structure, characterized in that: include: A workbench for fixing the triangular cable net shaping device and a positioning pin for tensioning the rope that passes through the table top; A triangular cable net shaping device is configured with a linear motion component, a planar motion component and a cantilever component for shaping the unit ropes of the triangular cable net; The triangular cable net units are respectively wound around the positioning pins of the triangular cable net shaping device through ropes and are stretched into a triangular cable net with balanced tension; The cable net tension adjustment device is fixed on the triangular cable net shaping device and is used to provide traction and adjust the tension of the triangular cable net unit; The force measuring device is fixed on the workbench and the linear motion assembly of the triangular cable net shaping device respectively, and measures the rope tension in the X-axis and Y-axis directions of the workbench through the force sensor; The distance measuring device is fixed on the workbench and the triangular cable net shaping device respectively, and is used to measure the distance between the unit cable segments of the triangular cable net; A rope tightening device is used to position and lock the rope on the rope ring of the cable net positioning pin of the triangular cable net unit; Film and tape are used to stick the prepared triangular cable net units together to form modular triangular cable-membrane structural units.

2. The modular manufacturing device for thin film reflective antenna filament structure according to claim 1, characterized in that: The workbench includes a first table top and a third table top that are distributed in a stepped manner. The second table top is provided below the front side of the first table top. The first table top is provided with a through hole and a strip-shaped long groove parallel to the X direction of the workbench. The bottom of the workbench is provided with adjustable feet.

3. The modular manufacturing device for thin film reflective antenna filament structure according to claim 1, characterized in that: The linear motion component of the triangular cable net shaping device is fixed on the second surface of the workbench, located directly below the long strip groove and parallel to the groove; the planar motion component is fixed on the third surface of the workbench, and a first slide is provided on the planar motion component. The planar motion component is vertically connected to the cantilever component, and the cantilever component extends from the planar motion device and is placed on the upper surface of the first surface of the workbench.

4. The modular manufacturing device for thin film reflective antenna filament structure according to claim 1, characterized in that: The planar motion assembly includes a second slide, a transverse axis assembly, a pair of longitudinal axis assemblies and a synchronous motion rod. The pair of longitudinal axis assemblies are fixed in parallel on the third surface of the workbench, and their directions are parallel to the Y direction of the workbench; the transverse axis assembly spans the two longitudinal axis assemblies, and its direction is perpendicular to the first longitudinal axis assembly; the second slide is slidably connected to the transverse axis assembly; the synchronous motion rod is connected to the ends of the pair of longitudinal axis assemblies.

5. The modular manufacturing device for thin film reflective antenna filament structure according to claim 1, characterized in that: The cantilever assembly includes a J-shaped extension rod component, the top plate of the J-shaped extension rod component is placed on the first table, the bottom plate is connected to the second slide of the planar motion component, and a fixed head is provided at the end of the top plate of the J-shaped extension rod component, and a positioning pin for tensioning the rope passes through the fixed head.

6. The modular manufacturing device for thin film reflective antenna filament structure according to claim 1, characterized in that: The cable net tension adjustment device is arranged on one side of the cantilever assembly. The cable net tension adjustment device is connected to the second rope end clip to clamp the rope through the traction device, and pulls the rope along the Y direction of the workbench.

7. The modular manufacturing device for thin film reflective antenna filament structure according to claim 1, characterized in that: A pair of force measuring devices are respectively installed with a force sensor and a positioning pin for tensioning the rope. The first force measuring device is located on the first table, and the second force measuring device is installed on the slide of the linear motion component; the first and second positioning pins are both located on the top of the force measuring device, and the first positioning pin is positioned and installed through the through hole of the first table, and the second positioning pin is limited in the long strip groove of the first table to restrict its linear movement.

8. The modular manufacturing device for thin film reflective antenna filament structure according to claim 7, characterized in that: The distance measuring device includes three pairs of distance sensors and blocks. The first distance sensor is installed on the first slide of the linear motion assembly, and the first block is fixed on the first force measuring device; the second and third distance sensors are respectively arranged on the fixed heads at the end of the cantilever assembly without interfering with each other, the second block is arranged on the front edge of the first table, parallel to the X direction of the workbench; the third block is arranged on the left edge of the first table, parallel to the Y direction of the workbench; the lengths of the three cable segments of the triangular cable net unit are obtained by measuring the distances between the distance sensors and the blocks respectively.

9. The modular manufacturing device for thin film reflective antenna filament structure according to claim 1, characterized in that: The triangular cable net unit ropes are wound around the positioning pins in an external winding or cross winding manner.

10. A modular manufacturing method for a modular manufacturing device for a thin film reflective antenna film structure according to any one of claims 1 to 9, characterized in that: include: Adjust the adjustable feet so that the workbench is level; According to the measured data of the distance measuring device, the second and third positioning pins are moved by controlling the coordinated motion of the linear motion component and the planar motion component of the triangular cable net shaping device, and the length of the cable segment of the triangular cable net unit is adjusted together with the first positioning pin to achieve the shaping of the triangular cable net unit; The rope is passed around three dowel pins to form a triangular cable net; The cable net tension adjustment device tensions and pulls the triangular cable net unit under the control of the power source. The force sensor determines that each cable segment has reached the set tension. The rope is positioned and locked on the rope ring of the cable net positioning pin through the rope tightening device. Cut off the excess rope ends at both ends of the rope to keep the triangular cable net in a taut state and complete the production of the triangular cable net unit; The prepared triangular cable net units are pasted together to form modular triangular cable-membrane structural units.

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