Automatic discharging device for satellite thermal test monitoring material

Abstract

The invention relates to an automatic discharging device for a satellite thermal test monitoring material. The automatic discharging device comprises a main body and a case arranged on the main body, the wire winding assembly, the wire combining tensioner and the raw material frame assembly are sequentially arranged on the main body in the raw material conveying direction; a synchronous motor for driving the winding assembly to rotate is arranged in the case; the wire combining tensioner comprises a support and a tension sensor arranged on the support, and the tension sensor is electrically connected with the case; the raw material frame assembly comprises a material shaft and at least two raw material discs used for winding raw material lines, and the raw material discs can rotate on the material shaft. An intelligent anti-overload driver is arranged in the machine box and dynamically sets a current threshold value according to the tensile strength of the raw material line, and closed-loop control is formed by the intelligent anti-overload driver and the tension sensor. According to the invention, blanking of a single lead can be realized, simultaneous doubling blanking of leads of multiple specifications can also be realized, operation is simple, automation and intelligentization are realized, the coil inserting precision is high, and a lead protection function is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of satellite thermal testing, and in particular to an automatic unloading device for satellite thermal testing monitoring materials. Background Art

[0002] During thermal testing, satellites require numerous monitoring points on equipment, structures, and the satellite surface to monitor temperature changes throughout the test. These points are primarily composed of two different conductor materials: constantan and copper. Thermal control constantan and copper wires are characterized by their unique thermoelectric properties, non-magnetic properties, excellent heat resistance and corrosion resistance, and stable electrical resistance, making them ideal for high-precision temperature control and measurement applications. Constantan and copper wires with a diameter of 0.15mm are typically used for onboard thermal monitoring. Depending on the location of the monitoring points and the required length, existing technology involves manually cutting the two different conductor materials according to technical requirements and then combining the two leads. This existing technology suffers from low cutting efficiency, low cutting accuracy, complex merging operations, and internal damage to the material caused by stress on the constantan during the cutting process. Summary of the Invention

[0003] In order to solve the technical problems existing in the above-mentioned prior art, the purpose of the present invention is to provide an automatic unloading device for satellite thermal test monitoring materials, which has high unloading accuracy and wire protection function, can realize both unloading of a single lead and unloading and wiring of leads of multiple specifications at the same time, and is simple to operate.

[0004] To achieve the above-mentioned purpose, the present invention provides an automatic unloading device for satellite thermal test monitoring materials, comprising:

[0005] a main body and a chassis disposed on the main body;

[0006] A winding assembly, a wire tensioner and a material rack assembly are sequentially arranged on the main body along the material conveying direction;

[0007] The chassis has a built-in synchronous motor for driving the winding assembly to rotate;

[0008] The wire tensioner includes a bracket and a tension sensor arranged on the bracket, and the tension sensor is electrically connected to the chassis;

[0009] The raw material rack assembly includes a material shaft and at least two raw material disks for winding the raw material wire, and the raw material disks are rotatable on the material shaft;

[0010] An intelligent anti-overload driver is provided in the chassis. The intelligent anti-overload driver dynamically sets a current threshold according to the tensile strength of the raw material line and forms a closed-loop control with the tension sensor.

[0011] According to a technical solution of the present invention, the surface of the material shaft is coated with a low-friction and wear-resistant coating;

[0012] The number of the raw material trays is two.

[0013] According to a technical solution of the present invention, the tension sensor is integrated with two first cross rollers and one second cross roller, the two first cross rollers are arranged horizontally in parallel as guide rollers, and the second cross roller is arranged vertically above the gap between the two first cross rollers as a tension roller.

[0014] According to a technical solution of the present invention, the winding assembly includes:

[0015] A main shaft coaxially connected to the synchronous motor, wherein the output shaft of the synchronous motor is coaxially connected to the main shaft;

[0016] A winding drum sleeved on the main shaft for winding the combined raw material wire;

[0017] The main shaft is also provided with a locker for fixing the winding drum, and the locker is fixed to the main shaft through a threaded connection.

[0018] According to a technical solution of the present invention, the raw material rack assembly further includes:

[0019] A bracket fixed to the main body, the bracket is U-shaped, and the material shaft is arranged between two vertical parts of the bracket;

[0020] Both vertical parts of the bracket are provided with U-shaped support grooves, and both ends of the material shaft are embedded in the U-shaped support grooves.

[0021] According to a technical solution of the present invention, the friction coefficient of the low-friction and wear-resistant coating is ≤0.15, and the thickness is 10-50 μm.

[0022] According to a technical solution of the present invention, the chassis includes:

[0023] A chassis body and a controller arranged on the chassis body;

[0024] an operating screen electrically connected to the controller;

[0025] A control button for controlling the start and stop of the synchronous motor;

[0026] Emergency stop button for forcibly cutting off the power supply.

[0027] According to a technical solution of the present invention, the current threshold setting of the intelligent anti-overload driver satisfies:

[0028]

[0029] Among them, I max is the maximum allowable current, Tbreak is the material breaking strength, d is the wire diameter, and k is the safety factor.

[0030] According to a technical solution of the present invention, when the tension sensor detects a resistance greater than 5N or the driver current exceeds a limit, the device automatically shuts down.

[0031] According to a technical solution of the present invention, the raw material wires on the two raw material disks are respectively copper and copper wires with a diameter of 0.1 to 0.5 mm.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] The present invention provides an automatic unloading device for satellite thermal test monitoring materials. The device adopts a synchronous motor to drive unloading, which can greatly improve the unloading speed and meet the needs of mass production. By setting a line tensioner, a 2+1 cross roller design and a tension sensor, it can realize both single material unloading and combined unloading of two materials, and at the same time protect the material surface to avoid damage to the material.

[0034] Furthermore, the present invention uses a unified winding reel and locking device fixing structure to ensure the consistency of blanking quality.

[0035] The present invention adopts an intelligent controller in conjunction with a synchronous motor controller, combined with an intelligent anti-overload driver and closed-loop control of a tension sensor, which can accurately control the motor speed and torque to meet the blanking requirements of different materials.

[0036] At the same time, the device structure is reasonably designed, which is convenient for integration with subsequent process production equipment to achieve batch production and greatly improve product quality qualification rate and productivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0038] Figure 1 This is a three-dimensional diagram of the automatic unloading device for satellite thermal test monitoring materials of the present invention.

[0039] Figure 2 This is a three-dimensional diagram from another perspective of the automatic unloading device for satellite thermal test monitoring materials of the present invention.

[0040] Figure 3 Schematic diagram of the structure of the raw material rack assembly.

[0041] in, Figures 1 to 3The corresponding relationship between the reference numerals and component names is as follows:

[0042] 1. Main body; 2. Chassis; 2.1. Chassis body; 2.2. Operation panel; 2.3. Controller; 2.4. Synchronous motor; 2.5. Intelligent anti-overload driver; 2.6. Control button; 2.7. Emergency stop button; 7. Raw material rack assembly; 7.1. Bracket; 7.2. U-shaped support groove; 7.3. Material shaft; 7.4. Raw material tray; 6. Thread tensioner; 6.1. Bracket; 6.2. Tension sensor; 4. Winding assembly; 5. Winding reel; 8. Locking device; 9. Spindle. DETAILED DESCRIPTION

[0043] The description of the embodiments in this specification should be combined with the corresponding drawings, which should be considered a complete part of this specification. In the drawings, the shapes and thicknesses of the embodiments may be exaggerated and indicated for simplicity or convenience. Furthermore, the various structural components in the drawings will be described separately. It is worth noting that components not shown in the drawings or not described in words are known to those of ordinary skill in the art.

[0044] The description of the embodiments herein and any references to directions and orientations are for ease of description only and are not to be construed as limiting the scope of the present invention. The following description of the preferred embodiments may involve combinations of features, which may exist independently or in combination. The present invention is not specifically limited to the preferred embodiments. The scope of the present invention is defined by the claims.

[0045] like Figures 1 to 3 As shown, the present invention's automatic unloading device for satellite thermal test monitoring materials primarily comprises a main body 1, a chassis 2, a winding assembly 4, a wire-joining tensioner 6, and a stock rack assembly 7. The main body 1 serves as the base support structure, while the chassis 2, wire-joining tensioner 6, and stock rack assembly 7 are sequentially mounted on the main body 1. The wire-joining tensioner 6 is positioned between the winding assembly 4 and the stock rack assembly 7, forming a continuous unloading path along the material conveying direction. The wire-joining tensioner is used to combine two materials within the tensioner's guide roller.

[0046] The chassis body 2.1 serves as the basic framework of the chassis 2. The operating panel 2.2, controller 2.3, synchronous motor 2.4, intelligent overload protection driver 2.5, control buttons 2.6, and emergency stop button 2.7 are sequentially mounted on the chassis body 2.1. The controller 2.3 is electrically connected to the operating panel 2.2, synchronous motor 2.4, intelligent overload protection driver 2.5, and tension sensor 6.2 to control the entire device.

[0047] The main shaft 9 is coaxially connected to the output shaft of the synchronous motor 2.4, and the winding drum 5 is sleeved on the main shaft 9 and fixed by a locker 8. The locker 8 is connected to the main shaft 9 by a thread to ensure that the winding drum 5 is stable and not loose.

[0048] The synchronous motor 2.4 will synchronously feed back the number of rotations to the controller 2.3, and the controller 2.3 can calculate the length of the wire on the set winding drum 5 through a formula, thereby achieving accurate wire unloading.

[0049] The wire closer bracket 6.1 is fixed to the main body 1, and the tension sensor 6.2 is installed on the wire closer bracket 6.1. The two first cross rollers of the tension sensor 6.2 are arranged horizontally in parallel, and the second cross roller is vertically arranged above the gap between the two first cross rollers, forming a 2+1 cross roller structure.

[0050] The raw material rack bracket 7.1 is fixed to the main body 1, and a U-shaped support groove 7.2 is set in the bracket 7.1. The material shaft 7.3 is placed in the U-shaped support groove 7.2, and the raw material tray 7.4 is mounted on the material shaft 7.3 and can rotate freely. The surface of the material shaft 7.3 is coated with a low-friction and wear-resistant coating with a friction coefficient of ≤0.15 and a thickness of 10-50μm.

[0051] The present invention, in combination with the particularity and requirements of thermal test monitoring materials, can realize intelligent and automatic material unloading by programming to control parameters such as speed, length, resistance, etc., while protecting the material from damage and improving the unloading accuracy and efficiency.

[0052] The automatic unloading device for satellite thermal test monitoring materials of the present invention is used as follows:

[0053] Install the raw material: put the raw material together with the raw material plate 7.4 on the material shaft 7.3, and then place the combination of the material shaft 7.3 and the raw material plate 7.4 in the U-shaped support groove 7.2, ensuring that the material shaft 7.3 can rotate freely.

[0054] Threading operation: Lead the raw material line from the raw material tray 7.4, pass it between the two first cross rollers of the line tensioner 6, and then pass it under the second cross roller to ensure that the raw material line is within the guide and tension monitoring range of the tension sensor 6.2.

[0055] Fix the winding drum: put the winding drum 5 on the main shaft 9 and firmly fix it on the main shaft 9 through threaded connection with the locker 8.

[0056] Fix the raw material head: fix the raw material line head that passes through the line tensioner 6 on the winding drum 5 to ensure that it is firmly fixed.

[0057] Power-on settings: Turn on the power of chassis 2 and set the speed, length, resistance and other related parameters through the operation screen 2.2. The starting speed of the synchronous motor can be set to appropriate units such as mm / min.

[0058] Start unloading: The machine is started by pressing the control button 2.6. The synchronous motor 2.4 drives the main shaft 9 and the winding drum 5 to rotate. The raw wire is unwound from the raw wire drum 7.4, and after the wire tensioner 6 combines the materials (if there are two types) and monitors the tension, it is wound onto the winding drum 5.

[0059] Safety protection: During the unloading process, the tension sensor 6.2 monitors the tension of the raw material line in real time, and the intelligent anti-overload driver 2.5 monitors the current. When the tension sensor 6.2 detects a resistance greater than 5N or the driver current exceeds the formula When the set threshold is reached, the equipment will automatically stop to protect materials and equipment.

[0060] Emergency stop: If an emergency occurs, press the emergency stop button 2.7 to forcibly cut off the power supply and stop the equipment.

[0061] In some embodiments of the present invention, the automatic unloading device for satellite thermal test monitoring materials includes:

[0062] A main body 1 and a chassis 2 arranged on the main body 1;

[0063] The winding assembly 4, the wire tensioner 6 and the material rack assembly 7 are sequentially arranged on the main body 1 along the material conveying direction;

[0064] The chassis 2 has a built-in synchronous motor 2.4 for driving the winding assembly 4 to rotate;

[0065] The wire tensioner 6 includes a bracket 6.1 and a tension sensor 6.2 provided on the bracket 6.1, and the tension sensor 6.2 is electrically connected to the chassis 2;

[0066] The raw material rack assembly 7 includes a material shaft 7.3 and at least two raw material disks 7.4 for winding the raw material wire, and the raw material disks 7.4 are rotatable on the material shaft 7.3;

[0067] The chassis 2 is provided with an intelligent anti-overload driver 2.5, which dynamically sets a current threshold according to the tensile strength of the raw material line and forms a closed-loop control with the tension sensor 6.2.

[0068] The main body 1 serves as the foundational framework, providing a stable mounting platform for the chassis 2, winding assembly 4, and other components. This ensures that the coaxiality deviations of each component meet requirements and prevents errors in blanking lengths caused by structural sway (traditional bracket sway can cause errors of up to 5mm). A synchronous motor 2.4 built into the chassis 2 drives the winding reel 5 via the spindle 9, achieving highly stable speed and improving blanking efficiency by at least 300% compared to manual operation.

[0069] The material shaft 7.3 of the raw material rack assembly 7 supports the raw material disk 7.4 to rotate freely, and cooperates with the 2+1 cross rollers of the wire tensioner 6 to greatly reduce the fluctuation of the unwinding resistance of the Kang and copper wires, realizing the synchronous merging and unloading of two wires, and the parallelism deviation of the merged wires is small.

[0070] The intelligent anti-overload driver 2.5 is electrically connected to the tension sensor 6.2. When the tension sensor 6.2 detects a resistance greater than 5N or the driver current exceeds a threshold value set according to a formula, the controller 2.3 in the drive chassis 2 cuts off the power supply to the synchronous motor 2.4 within 0.3 seconds to prevent material damage caused by motor overload, thereby greatly reducing the risk of wire breakage by up to 90%.

[0071] In some embodiments of the present invention, the low-friction and wear-resistant coating (friction coefficient ≤ 0.15) coated on the surface of the material shaft 7.3 reduces the sliding resistance between the wire and the material shaft by 60%, and the temperature rise of the 0.15 mm diameter Kang wire when unwinding is ≤ 1°C (the temperature rise of the traditional metal material shaft can reach 5°C), thereby avoiding the decrease in tensile strength of the material due to softening due to friction.

[0072] Two raw material reels 7.4, loaded with Kang and copper wire respectively, are synchronously reeled in by synchronous motor 2.4, driving winding reels 5 for simultaneous winding, ensuring uniform unloading with a length deviation of ≤0.5mm. The U-shaped support groove 7.2 of the raw material rack assembly 7 ensures that the radial runout of the material shaft 7.3 is ≤0.2mm, preventing length inconsistencies caused by the reels' wobbling during double-wire unloading.

[0073] In some embodiments of the present invention, the current threshold setting of the intelligent anti-overload driver 2.5 satisfies:

[0074]

[0075] Among them, I max is the maximum allowable current, T break is the material breaking strength, d is the wire diameter, and k is the safety factor.

[0076] When the current exceeds the limit, the speed is automatically reduced, reducing the damage rate of 20% of the traditional constant current drive to below 5%; by adjusting the safety factor k (0.1-0.8), it can adapt to various sizes of copper, constantan and other alloy wires, and the material model can be switched without hardware modification.

[0077] In some embodiments of the present invention, the bracket 7.1 fixed to the main body 1 is U-shaped, and the material shaft is arranged between the two vertical parts of the bracket 7.1. It can be understood that a U-shape is formed between the two vertical parts and the main body 1.

[0078] In some embodiments of the present invention, U-shaped support grooves 7.2 are provided on both vertical parts of the bracket 7.1. The U-shaped support grooves 7.2 are used to provide an installation interface for the material shaft to ensure that the material shaft can rotate freely and does not fall off; the material shaft is arranged on the material shaft support groove, and the two ends of the material shaft are embedded in the U-shaped support grooves 7.2. Any U-shaped support groove 7.2 forms a 60° angle with the main body 1, which facilitates installation while preventing the material shaft from falling out, thereby improving safety and stability.

[0079] In summary, the present invention can overcome the problems of low cutting efficiency, uncontrollable quality, low cutting accuracy and complex paralleling in the prior art according to the particularity of the material, and provides an automatic cutting device for satellite thermal test monitoring materials. Combined with the particularity and requirements of thermal test monitoring materials, the operation is simple and can be programmed (speed, length, resistance, etc.) according to the particularity of the material to achieve intelligent and automatic cutting.

[0080] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic unloading device for satellite thermal test monitoring materials, characterized in that: include: A main body (1) and a chassis (2) arranged on the main body (1); A winding assembly (4), a line tensioner (6) and a material rack assembly (7) are sequentially arranged on the main body (1) along the material conveying direction; The chassis (2) has a built-in synchronous motor (2.4) for driving the winding assembly (4) to rotate; The line tensioner (6) comprises a bracket (6.1) and a tension sensor (6.2) arranged on the bracket (6.1), and the tension sensor (6.2) is electrically connected to the chassis (2); The raw material rack assembly (7) comprises a material shaft (7.3) and at least two raw material disks (7.4) for winding the raw material line, and the raw material disks (7.4) are rotatable on the material shaft (7.3); An intelligent overload prevention driver (2.5) is provided in the chassis (2); the intelligent overload prevention driver (2.5) dynamically sets a current threshold value according to the tensile strength of the raw material line, and forms a closed-loop control with the tension sensor (6.2).

2. The automatic unloading device for satellite thermal test monitoring materials according to claim 1 is characterized in that: The surface of the material shaft (7.3) is coated with a low-friction and wear-resistant coating; The number of the raw material trays (7.4) is two.

3. The automatic unloading device for satellite thermal test monitoring materials according to claim 2 is characterized in that: The tension sensor (6.2) is integrated with two first cross rollers and one second cross roller, wherein the two first cross rollers are arranged horizontally in parallel as guide rollers, and the second cross roller is arranged vertically above the gap between the two first cross rollers as a tension roller.

4. The automatic unloading device for satellite thermal test monitoring materials according to claim 1 is characterized in that: The winding assembly (4) comprises: a main shaft (9) coaxially connected to the synchronous motor (2.4), wherein the output shaft of the synchronous motor (2.4) is coaxially connected to the main shaft (9); a winding drum (5) sleeved on the main shaft (9) for winding the combined raw material wire; The main shaft (9) is also provided with a locker (8) for fixing the winding drum (5), and the locker (8) is fixed to the main shaft (9) through a threaded connection.

5. The automatic unloading device for satellite thermal test monitoring materials according to claim 1 is characterized in that: The raw material rack assembly (7) further comprises: A bracket (7.1) fixed to the main body (1), the bracket (7.1) being U-shaped, and the material shaft being arranged between two vertical portions of the bracket (7.1); U-shaped support grooves (7.2) are provided on both vertical parts of the bracket (7.1), and both ends of the material shaft are embedded in the U-shaped support grooves (7.2).

6. The automatic unloading device for satellite thermal test monitoring materials according to claim 1 is characterized in that: The friction coefficient of the low-friction and wear-resistant coating is ≤0.15, and the thickness is 10-50 μm.

7. The automatic unloading device for satellite thermal test monitoring materials according to claim 1 is characterized in that: The chassis (2) comprises: a chassis body (2.1) and a controller (2.3) arranged on the chassis body (2.1); an operating screen (2.2) electrically connected to the controller (2.3); A control button (2.6) for controlling the start and stop of the synchronous motor; Emergency stop button (2.7) for forced power off.

8. The automatic unloading device for satellite thermal test monitoring materials according to claim 1 is characterized in that: The current threshold setting of the intelligent anti-overload driver (2.5) satisfies: Among them, I max is the maximum allowable current, T break is the material breaking strength, d is the wire diameter, and k is the safety factor.

9. The automatic unloading device for satellite thermal test monitoring materials according to claim 1 is characterized in that: When the tension sensor (6.2) detects a resistance greater than 5N or the current of the intelligent anti-overload driver (2.5) exceeds the limit, the device automatically shuts down.

10. The automatic unloading device for satellite thermal test monitoring materials according to claim 2, characterized in that: The raw material wires on the two raw material disks (7.4) are respectively copper and copper wires with a diameter of 0.1 to 0.5 mm.

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