Automatic test article cable recovery device for large-scale temperature shock test box

Abstract

The utility model relates to an automatic test article cable recovery device for a large-scale temperature shock test box. The lower end of a support mechanism is fixed on a bottom plate; the upper end of the support mechanism is movably connected with the coiling mechanism; one side of the coiling mechanism is movably connected with a servo driving mechanism through a gear meshing mechanism; a torque sensing device is arranged on the servo driving mechanism; the servo driving mechanism adjusts the output torque according to an instruction of the torque sensing device, so that the cable winding mechanism keeps the tensile force applied to the cable; according to the utility model, the recovery speed and torque can be adjusted according to the tension of the cable, the problem that the cable is pulled out of the winding reel and the electrified cable can be extended along with the movement of the test platform is solved, the cable needs to be automatically recovered when the platform begins to return to the original position, and the recovery speed and torque cannot be adjusted according to the tension of the cable in the recovery process. And therefore, the technical problems of winding, loosening and the like of the cable are solved.

Description

Technical Field

[0001] The embodiments of this utility model relate to an automatic cable recovery device in the field of environmental testing equipment technology, and particularly to an automatic cable recovery device for test samples in a large temperature shock test chamber; applicable to product reliability testing in the fields of electronics, aerospace, and automobiles. Background Technology

[0002] In high-end manufacturing sectors such as new energy vehicles and aerospace, key components like power batteries and precision electronic components must undergo temperature shock environmental testing to verify their performance reliability under extreme temperature differences. Temperature shock test chambers can rapidly switch between high and low temperature environments (e.g., from -40℃ to 120℃) to simulate the rapid temperature changes encountered by products in real-world applications. However, existing technologies have the following drawbacks:

[0003] 1. Cable connection problem: Traditional test chambers cannot be connected to wires to detect internal signals or power supply to the sample. Cables need to be manually plugged and unplugged before and after the test, which leads to test interruption, low efficiency, and frequent plugging and unplugging of easily damaged interfaces.

[0004] 2. Platform reciprocating motion causes cable entanglement: When the test platform needs to move back and forth (such as simulating vehicle vibration or robotic arm movement), the cable cannot be automatically retracted, resulting in entanglement, knotting or even breakage, affecting test safety and equipment life.

[0005] 3. The impact of temperature shock on cable performance: High and low temperature cycles will accelerate the aging of cable materials. Traditional fixed cable designs cannot adapt to the thermal expansion and contraction caused by temperature changes, further aggravating the risk of cable damage.

[0006] In existing large-scale temperature shock test chambers, the cables of the test specimens are pulled out from the winding reel. In order to ensure that the energized cables can extend with the movement of the test platform, excessive tension often leads to cable damage or affects the movement of the platform. When the platform begins to return to its original position, the cables need to be automatically retracted. However, during the retraction process, the retraction speed and torque cannot be adjusted according to the cable tension, resulting in problems such as cable tangling and loosening. This shortens the service life of the cables and increases the maintenance cost of the test equipment. Utility Model Content

[0007] The purpose of this invention is to provide an automatic cable recovery device for test specimens in a large temperature shock test chamber, which can adjust the recovery speed and torque according to the cable tension.

[0008] To achieve the above objectives, this utility model provides an automatic cable recovery device for test samples in a large temperature shock test chamber, comprising:

[0009] Base plate;

[0010] A support mechanism, wherein the lower end of the support mechanism is fixed on the base plate;

[0011] A winding mechanism is movably connected to the upper end of the support mechanism;

[0012] A servo drive mechanism is movably connected to one side of the winding mechanism via a gear meshing mechanism.

[0013] A torque sensing device is installed on the servo drive mechanism; the servo drive mechanism adjusts the output torque according to the command of the torque sensing device, so that the winding mechanism maintains the tension on the cable.

[0014] Furthermore, in the automatic cable recovery device for test specimens in a large temperature shock test chamber described in this utility model, a wire mechanism is fixed on one side of the winding mechanism above the base plate.

[0015] Furthermore, in the automatic cable recovery device for test specimens in a large temperature shock test chamber described in this utility model, the lower ends of the two support mechanisms are fixed on the base plate, and the two ends of the winding mechanism are movably connected to the upper ends of the two support mechanisms.

[0016] Furthermore, in the automatic cable recovery device for test specimens in a large temperature shock test chamber described in this utility model, the support mechanism further includes:

[0017] Supports, with the lower ends of the two supports fixed on the base plate;

[0018] A bearing housing is provided, with the outer shell of the bearing housing fixed above the support; and the inner ring of the bearing housing is fixed to both sides of the winding mechanism.

[0019] Furthermore, in the automatic cable recovery device for test specimens in a large temperature shock test chamber described in this utility model, the winding mechanism further includes:

[0020] A rotating shaft, with both ends fixed in the inner rings of the bearing seats of the two support mechanisms; the rotating shaft rotates on the bearing seats;

[0021] The inner cylinder is used to fix the rotating shaft at its center.

[0022] Spokes, with one end of several spokes fixed to the outside of the inner cylinder in an equally divided circle manner;

[0023] An outer cylinder is fixed to the other end of a plurality of spokes; the spokes support the outer cylinder.

[0024] A baffle plate is fixed to the outside of the outer cylinder;

[0025] A large gear is coaxially fixed to the outside of one of the baffles; the large gear meshes with the servo drive mechanism.

[0026] Furthermore, in the automatic cable recovery device for test specimens in a large temperature shock test chamber described in this utility model, the servo drive mechanism further includes:

[0027] A bracket is fixed on one side of the winding mechanism and on the base plate.

[0028] A speed reducer, with its housing fixed above the bracket;

[0029] A pinion is fixedly connected to the output shaft of the reducer;

[0030] A servo motor is coaxially connected to the output shaft of the servo motor at the input end of the reducer; the servo motor drives a small gear, which in turn drives a large gear to rotate, thereby driving the winding mechanism to rotate.

[0031] Furthermore, in the automatic cable recovery device for test specimens in a large temperature shock test chamber described in this utility model, the torque sensing device further includes:

[0032] A torque sensor is coaxially connected to the rear side of the servo motor in the servo drive mechanism;

[0033] A torque encoder, wherein the torque sensor is electrically connected to the torque encoder; the torque sensor outputs an analog torque value to the torque encoder;

[0034] The torque encoder converts the analog torque signal into a digital signal and then transmits it to the rotary encoder of the servo motor.

[0035] Furthermore, in the automatic cable recovery device for test specimens in a large temperature shock test chamber described in this utility model, the conductor mechanism further includes:

[0036] A fixing bracket is fixed on one side of the winding mechanism, above the base plate.

[0037] The roller is fixed at both ends on the two fixed brackets by pins;

[0038] A guide wheel is movably connected to the roller, and the guide wheel slides left and right on the roller.

[0039] Compared with the prior art, the implementation of this utility model involves fixing the lower end of the support mechanism on the base plate; movably connecting the winding mechanism to the upper end of the support mechanism; movably connecting the servo drive mechanism to one side of the winding mechanism via a gear meshing mechanism; and installing a torque sensing device on the servo drive mechanism. The servo drive mechanism adjusts its output torque according to the instructions of the torque sensing device, ensuring the winding mechanism maintains the tension on the cable. This utility model can adjust the recovery speed and torque according to the cable tension, solving the problem in existing large temperature shock test chambers where, when the cable of the test specimen is pulled from the winding reel, excessive tension often damages the cable or affects the platform's movement in order to ensure the energized cable extends with the movement of the test platform. Furthermore, when the platform begins to return to its original position, the cable needs to be automatically recovered, but during the recovery process, the recovery speed and torque cannot be adjusted according to the cable tension, leading to technical problems such as cable tangling and loosening. Attached Figure Description

[0040] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0041] Figure 2 This is a connection diagram of the torque sensing device of this utility model. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0043] The present invention relates to an automatic cable recovery device for test specimens in a large temperature shock test chamber, such as... Figure 1 and Figure 2 As shown, it includes:

[0044] The base plate 1 serves as the base for the automatic cable recovery device for the test specimen in this embodiment, which is used in a large temperature shock test chamber.

[0045] The lower end of the support mechanism 10 is fixed on the base plate 1; the support mechanism 10 mainly supports the winding mechanism 20, and the winding mechanism 20 rotates on the support mechanism 10.

[0046] A winding mechanism 20 is movably connected to the upper end of the support mechanism 10; the winding mechanism 20 mainly serves to wind up the cable.

[0047] A servo drive mechanism 30 is movably connected to one side of the winding mechanism 20 via a gear meshing mechanism; the servo drive mechanism 30 drives the winding mechanism 20 to rotate, thereby winding the cable.

[0048] A torque sensor 40 is installed on the servo drive mechanism 30. The servo drive mechanism 30 adjusts its output torque according to the instructions of the torque sensor 40, ensuring that the winding mechanism 20 maintains tension on the cable. When the test platform reciprocates, the torque sensor 40 monitors the tension on the cable in real time. During the platform's movement, if the tension on the cable exceeds a preset pre-judged force, the servo drive mechanism 30 adjusts its output torque according to the output of the torque sensor 40, allowing the cable to be smoothly pulled out of the winding mechanism 20. This ensures that the energized cable can extend with the movement of the test platform, preventing cable damage or interference with platform movement due to excessive tension. When the platform begins to return to its original position, the torque sensor 40 again activates, controlling the servo drive mechanism 30 to reverse, using appropriate torque to drive the winding reel to automatically retract the cable. During the retraction process, the retraction speed and torque are adjusted in real time according to the cable tension to prevent tangling, slackness, and other problems. This invention adjusts the recovery speed and torque based on cable tension, solving the problems often encountered in existing large-scale temperature shock test chambers. When cables are pulled from the winding reel to ensure they extend with the test platform, excessive tension can damage the cables or impede platform movement. Furthermore, when the platform returns to its original position, automatic cable recovery is required, but the recovery speed and torque cannot be adjusted according to cable tension, leading to problems such as cable tangling and loosening. This invention effectively solves the problem of automatic cable recovery caused by the reciprocating motion of the test platform in traditional temperature shock test chambers. By precisely controlling the tension, the continuous stability of power supply and signal transmission for the tested sample is ensured during the test, significantly improving the accuracy and reliability of temperature shock testing; extending cable lifespan; and reducing the maintenance costs of the test equipment.

[0049] To achieve the above-mentioned technical effects, in the automatic cable recovery device for test specimens in the large temperature shock test chamber of this embodiment, such as... Figure 1 and Figure 2 As shown, a wire guide mechanism 50 is fixed above the base plate 1 on one side of the winding mechanism 20. The wire guide mechanism 50 is mainly used to guide the cable during the winding and pulling process, thereby preventing technical problems such as cable tangling and loosening.

[0050] To achieve the above-mentioned technical effects, in the automatic cable recovery device for test specimens in the large temperature shock test chamber of this embodiment, such as... Figure 1 and Figure 2As shown, the lower ends of two support mechanisms 10 are fixed on the base plate 1, and the two ends of the winding mechanism 20 are movably connected to the upper ends of the two support mechanisms 10.

[0051] To achieve the above-mentioned technical effects, in the automatic cable recovery device for test specimens in the large temperature shock test chamber of this embodiment, such as... Figure 1 and Figure 2 As shown, the support mechanism 10 also includes:

[0052] Fix the lower ends of two supports 11 to the base plate 1;

[0053] The outer shell of the bearing housing 12 is fixed above the support 11; the inner ring of the bearing in the bearing housing 12 is fixed to both sides of the winding mechanism 20. The support 11 serves to fix the outer shell of the bearing housing 12. The bearing housing 12 mainly serves to support the winding mechanism 20.

[0054] To achieve the above-mentioned technical effects, in the automatic cable recovery device for test specimens in the large temperature shock test chamber of this embodiment, such as... Figure 1 and Figure 2 As shown, the winding mechanism 20 also includes:

[0055] The two ends of the rotating shaft 21 are fixed in the inner ring of the bearing housing 12 of the two support mechanisms 10; the rotating shaft 21 rotates on the bearing housing 12; the rotating shaft 21 mainly plays the role of rotation.

[0056] Fix the rotating shaft 21 at the center position of the inner cylinder 22;

[0057] One end of several spokes 23 is fixed on the outer side of the inner cylinder 22 in an equally divided circle manner;

[0058] An outer cylinder 24 is fixed to the other end of several spokes 23; the spokes 23 support the outer cylinder 24; the inner cylinder 22 and the spokes 23 support the outer cylinder 24.

[0059] A baffle 25 is fixed to the outside of the outer cylinder 24; the baffle 25 is used to prevent the cable from slipping off the edge of the outer cylinder 24. The baffle 25 serves to block the cable.

[0060] A large gear 26 is fixed coaxially to the outer side of one of the retaining plates 25; the large gear 26 meshes with the servo drive mechanism 30. The large gear 26 mainly meshes with the small gear 33 in the servo drive mechanism 30.

[0061] To achieve the above-mentioned technical effects, in the automatic cable recovery device for test specimens in the large temperature shock test chamber of this embodiment, such as... Figure 1 and Figure 2 As shown, the servo drive mechanism 30 also includes:

[0062] On one side of the winding mechanism 20, a bracket 31 is fixed on the base plate 1;

[0063] The housing of the reducer 32 is fixed above the bracket 31; the bracket 31 is used to support the reducer 32.

[0064] A pinion 33 is fixedly connected to the output shaft of the reducer 32; the pinion 33 meshes with the large gear 26.

[0065] The output shaft of the servo motor 34 is coaxially connected to the input end of the reducer 33. The servo motor 34 drives the pinion 33, which in turn drives the large gear 26 to rotate, thereby driving the winding mechanism 20 to rotate. The servo motor 34 adjusts the output torque according to the output of the torque sensor 40, allowing the cable to be smoothly pulled out of the winding mechanism 20 without causing cable damage or affecting the platform movement due to excessive tension. The servo motor 34 rotates in reverse to drive the winding reel with appropriate torque to automatically retract the cable. During the retraction process, the retraction speed and torque are adjusted in real time according to the cable tension to avoid problems such as cable tangling or loosening.

[0066] To achieve the above-mentioned technical effects, in the automatic cable recovery device for test specimens in the large temperature shock test chamber of this embodiment, such as... Figure 1 and Figure 2 As shown, the torque sensing device 40 also includes:

[0067] In the servo drive mechanism 30, a torque sensor 41 is coaxially connected to the rear side of the servo motor 34; the torque sensor 41 is mainly used to measure the torque borne by the cable in this embodiment.

[0068] Torque sensor 41 is electrically connected to torque encoder 42; torque sensor 41 outputs analog torque to torque encoder 42; torque encoder 42 mainly performs digital-to-analog conversion on the analog signal from torque sensor 41.

[0069] The torque encoder 42 converts the analog torque signal into digital signal and transmits it to the rotary encoder 43 of the servo motor 34.

[0070] To achieve the above-mentioned technical effects, in the automatic cable recovery device for test specimens in the large temperature shock test chamber of this embodiment, such as... Figure 1 and Figure 2 As shown, the wire guide mechanism 50 also includes:

[0071] On one side of the winding mechanism 20, a fixing bracket 51 is fixed above the base plate 1;

[0072] The two ends of the roller 52 are fixed on the two fixed brackets 51 by pins 53; the fixed brackets 51 support the roller 52.

[0073] A guide wheel 54 is movably connected to the roller 52, and the guide wheel 54 slides left and right on the roller 52. The guide wheel 54 mainly serves to guide the cable.

[0074] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. An automatic cable recovery device for test specimens in a large temperature shock test chamber, characterized in that, include: Base plate; A support mechanism, wherein the lower end of the support mechanism is fixed on the base plate; A winding mechanism is movably connected to the upper end of the support mechanism; A servo drive mechanism is movably connected to one side of the winding mechanism via a gear meshing mechanism. A torque sensing device is installed on the servo drive mechanism; the servo drive mechanism adjusts the output torque according to the command of the torque sensing device, so that the winding mechanism maintains the tension on the cable.

2. The automatic cable recovery device for test specimens in a large temperature shock test chamber according to claim 1, characterized in that, On one side of the winding mechanism, a wire guide mechanism is fixed above the base plate.

3. The automatic cable recovery device for test specimens in a large temperature shock test chamber according to claim 1, characterized in that, The lower ends of the two support mechanisms are fixed on the base plate, and the two ends of the winding mechanism are movably connected to the upper ends of the two support mechanisms.

4. The automatic cable recovery device for test specimens in a large temperature shock test chamber according to claim 3, characterized in that, The support mechanism further includes: Supports, with the lower ends of the two supports fixed on the base plate; A bearing housing is provided, with the outer shell of the bearing housing fixed above the support; and the inner ring of the bearing housing is fixed to both sides of the winding mechanism.

5. The automatic cable recovery device for test specimens in a large temperature shock test chamber according to claim 1, characterized in that, The winding mechanism further includes: A rotating shaft, with both ends fixed in the inner rings of the bearing seats of the two support mechanisms; the rotating shaft rotates on the bearing seats; The inner cylinder is used to fix the rotating shaft at its center. Spokes, with one end of several spokes fixed to the outside of the inner cylinder in an equally divided circle manner; An outer cylinder is fixed to the other end of a plurality of spokes; the spokes support the outer cylinder. A baffle plate is fixed to the outside of the outer cylinder; A large gear is coaxially fixed to the outside of one of the baffles; the large gear meshes with the servo drive mechanism.

6. The automatic cable recovery device for test specimens in a large temperature shock test chamber according to claim 1, characterized in that, The servo drive mechanism further includes: A bracket is fixed on one side of the winding mechanism and on the base plate. A speed reducer, with its housing fixed above the bracket; A pinion is fixedly connected to the output shaft of the reducer; A servo motor is coaxially connected to the output shaft of the servo motor at the input end of the reducer; the servo motor drives a small gear, which in turn drives a large gear to rotate, thereby driving the winding mechanism to rotate.

7. The automatic cable recovery device for test specimens in a large temperature shock test chamber according to claim 1, characterized in that, The torque sensing device further includes: A torque sensor is coaxially connected to the rear side of the servo motor in the servo drive mechanism; A torque encoder, wherein the torque sensor is electrically connected to the torque encoder; the torque sensor outputs an analog torque value to the torque encoder; The torque encoder converts the analog torque signal into a digital signal and then transmits it to the rotary encoder of the servo motor.

8. The automatic cable recovery device for test specimens in a large temperature shock test chamber according to claim 2, characterized in that, The aforementioned wire mechanism further includes: A fixing bracket is fixed on one side of the winding mechanism, above the base plate. The roller is fixed at both ends on the two fixed brackets by pins; A guide wheel is movably connected to the roller, and the guide wheel slides left and right on the roller.

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