Sensor data acquisition device

Abstract

The utility model belongs to the technical field of sensor detection, and particularly discloses a sensor data acquisition device which comprises a base, and a sensor is detachably connected to the base. The fixing seat is arranged on the base, a positioning assembly is arranged on the fixing seat, and the positioning assembly is used for fixing a wire of the sensor; the fixing plate is provided with a conductive terminal, the conductive terminal is electrically connected with the channel switcher, the base is provided with a driving mechanism, the output end of the driving mechanism is connected with the fixing plate, and the driving mechanism is used for driving the conductive terminal to be close to or away from the positioning assembly. According to the utility model, under the driving of the driving mechanism, the conductive terminal can automatically electrify the wire of the sensor, and corresponding detection is carried out after the conductive terminal is connected with a power supply, so that the detection efficiency of the sensor is improved.

Description

Sensor data acquisition device Technical Field

[0001] This utility model relates to the field of sensor detection technology, and in particular to a sensor data acquisition device. Background Technology

[0002] A sensor is a detection device that can sense the information being measured and transform the sensed information into an electrical signal or other required form of information output according to a certain rule, so as to meet the requirements of information transmission, processing, storage, display, recording and control.

[0003] Before leaving the factory, sensors need to undergo a series of tests to ensure their quality. Among these tests, the testing of the sensor's basic data is crucial, mainly including the testing of zero-point voltage, input impedance, output impedance, and insulation resistance. In the current technology, the basic data testing of sensors mainly uses a multimeter, connecting the sensor's wires to different function ranges of the multimeter for testing. However, the testing process requires frequent switching and clamping of the wires, resulting in low testing efficiency. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a sensor data acquisition device to solve the problem of low sensor detection efficiency in the prior art.

[0005] To achieve the above and other related objectives, this utility model provides a sensor data acquisition device, comprising:

[0006] The sensor is detachably connected to the base.

[0007] A mounting base is provided on the base, and the mounting base is provided with a positioning component for fixing the wires of the sensor;

[0008] A fixed plate is provided with conductive terminals, which are electrically connected to a channel switcher. A driving mechanism is provided on the base, and the output end of the driving mechanism is connected to the fixed plate and is used to drive the conductive terminals to move closer to or away from the positioning component.

[0009] Optionally, the mounting base has at least one slot for placing the sensor wire.

[0010] Optionally, the positioning component includes a positioning plate and a positioning mechanism disposed on the positioning plate. The positioning plate is detachably connected to the fixed base. The positioning plate has a positioning hole corresponding to the placement slot, and the positioning hole communicates with the placement slot. The positioning plate is provided with a positioning groove corresponding to the placement slot, and the positioning groove is located on one side of the positioning hole.

[0011] Optionally, the positioning mechanism includes a drive rod and an execution plate. The drive rod is rotatably connected to the positioning plate, and the execution plate is threadedly connected to the drive rod. The execution plate is provided with a connecting rod corresponding to the positioning groove. The free end of the connecting rod is provided with a fixing rod that is slidably connected to the positioning groove. The side of the fixing rod away from the connecting rod is provided with a clamping block for clamping the wire.

[0012] Optionally, the positioning groove is provided with a sliding groove for the fixed rod to slide, and the execution plate is provided with a plurality of guide rods that are slidably connected to the positioning plate.

[0013] Optionally, the drive mechanism includes a mounting plate and a driver disposed on the mounting plate. The output end of the driver is provided with a push block, which is detachably connected to the fixed plate. A reinforcing plate is detachably connected to the mounting plate.

[0014] Optionally, the base is provided with a positioning rod, and the fixing plate is slidably connected to the positioning rod.

[0015] Optionally, the bottom of the fixing plate is provided with a connecting plate, and the conductive terminal is disposed through the fixing plate and the connecting plate. One end of the conductive terminal is used to connect to the channel switcher, and the other end can be used to contact the wire of the sensor.

[0016] Optionally, the conductive terminal includes a housing and a base rod, the base rod being slidably connected inside the housing, a spring being provided between the inner bottom of the housing and the base rod, and a contact head being provided at the end of the base rod away from the spring, the contact head being able to pass through the positioning hole and enter the placement slot to contact the wire of the sensor.

[0017] Optionally, the sensor data acquisition device further includes a power supply, which is disposed within the base and electrically connected to the channel switch.

[0018] As described above, the sensor data acquisition device proposed in this utility model has the following beneficial effects:

[0019] In this invention, the sensor wires can be fixed by the fixed base and the positioning components on the fixed base. Then, the conductive terminals on the fixed plate can automatically energize the sensor wires under the drive of the driving mechanism. After the power supply is connected, the corresponding detection is performed. Compared with the prior art, this invention eliminates the need to clamp the wires multiple times during the sensor detection process, thus improving the sensor detection efficiency. Attached Figure Description

[0020] Figure 1 shows a structural schematic diagram of an embodiment of the present invention;

[0021] Figure 2 shows a schematic diagram of the drive mechanism in one embodiment of the present invention;

[0022] Figure 3 shows a cross-sectional view of a conductive terminal in one embodiment of the present invention;

[0023] Figure 4 shows a schematic diagram of the positioning component in one embodiment of the present invention;

[0024] Figure 5 shows a schematic diagram of the structure of the fixing base in one embodiment of the present invention;

[0025] Figure 6 shows a schematic diagram of the positioning plate in one embodiment of the present invention;

[0026] Figure 7 shows a schematic diagram of the positioning mechanism in one embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] Base 1, switch 101, drive mechanism 2, mounting plate 201, driver 202, push block 203, fixing plate 204, positioning rod 205, reinforcing plate 206, connecting plate 207, conductive terminal 208, housing 2081, bottom rod 2082, spring 2083, contact head 2084, positioning assembly 3, fixing seat 301, placement groove 302, positioning plate 303, positioning hole 304, positioning groove 305, slide groove 306, fixing rod 307, clamping block 308, connecting rod 309, actuator plate 310, drive rod 311, guide rod 312, set screw 313, sensor 4, wire 401. Detailed Implementation

[0029] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0030] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show components related to this utility model and are not drawn according to the actual number, shape, and size of the components in implementation. In actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex. The structures, proportions, sizes, etc., shown in the accompanying drawings are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0031] In the traditional sensor 4 testing process, manually switching the operating modes of connecting the lead wire 401 to different function ranges of the multimeter results in a time-consuming testing procedure and poses a risk of contact instability. Since the basic data testing of sensor 4 involves continuous testing of zero-point voltage, input impedance, output impedance, and insulation resistance, operators need to repeatedly disassemble and reassemble the lead wire 401 and adjust its clamping position. This can easily cause wear on the mechanical contact interface, and fluctuations in the contact resistance along the signal transmission path directly affect test accuracy. The cumulative operational errors from multi-channel switching reduce the consistency of test data, and manual physical intervention may also cause deformation of the lead wire 401 end or damage to the insulation layer, increasing the frequency of equipment maintenance.

[0032] For example, in a batch testing scenario for sensors 4 on an industrial production line, the test bench needs to perform basic parameter testing on 200 sensors 4 per batch. Each sensor 4 includes 4 independent test items, and the operator needs to sequentially connect the red and black probes to the power supply terminal, signal output terminal, and ground terminal, respectively. For zero-point voltage testing, the wire 401 needs to be connected to the voltage range interface of the multimeter, and for input impedance testing, it needs to be re-clamped to the ohm range interface. Completing all tests for a single sensor 4 requires 6 insertion and removal operations of the wire 401. Frequent mechanical contact causes an oxide layer to form on the connector's metal contacts, increasing the contact resistance from the initial 0.5Ω to 1.2Ω, and resulting in a signal attenuation rate of 8%. The testing station generates an average of 1200 manual intervention actions per day, and the probability of incorrect connection due to operator fatigue reaches 0.3%.

[0033] If the above problems are not resolved, the production line's testing efficiency will be limited to below 65% of the theoretical value, making the testing process a bottleneck for capacity improvement. Changes in contact interface impedance will cause zero-point voltage measurement errors to exceed ±0.5mV, exceeding the ±0.2mV threshold required by the sensor's factory accuracy standard. Connector lifespan will be shortened to replacement after only 3000 mating cycles, increasing equipment maintenance costs by 25%. The cumulative effect of errors from multiple manual operations will widen the batch product qualification rate fluctuation range to ±5%, directly affecting the reliability of the quality traceability system. The potential for internal breakage caused by repeated bending of wire 401 will also result in 2% of latently defective products entering the market.

[0034] Faced with the aforementioned problems, this application initially considered adopting a multi-station synchronous detection architecture, processing different parameter detection requirements in parallel by setting up independent test units. However, this solution would significantly increase the equipment size and manufacturing cost, and poses a risk of signal cross-interference. Instead, the application investigated the automated implementation path of conductor 401 positioning and electrical contact. Analysis revealed a coupling relationship between the fixing accuracy of conductor 401 and the stability of electrical contact, making it difficult to ensure their coordination through manual operation. Therefore, this application attempted to integrate the conductor 401 constraint mechanism with the contact drive mechanism 2, controlling the contact action timing through mechanical linkage.

[0035] Further investigation revealed that while directly pressing the wire 401 with a pneumatic pusher could achieve automated contact, it lacked the ability to compensate for the position of the wire 401, making it prone to poor contact due to positioning deviations. To address this, a floating conductive terminal 208 structure was introduced, utilizing elastic elements to compensate for axial position errors. However, this solution still could not solve the problem of repeated positioning of the wire 401 during multi-channel switching. Finally, by constructing a collaborative mechanism between the movable conductive terminal 208 group and the fixed wire 401 constraint assembly, precise alignment and stable conduction of the contact interface were achieved under the control of the actuator 202.

[0036] As shown in Figures 1-7, this utility model proposes a data acquisition device for sensor 4.

[0037] In one exemplary embodiment, the sensor 4 data acquisition device includes:

[0038] The base 1 and sensor 4 are detachably connected to the base 1;

[0039] A fixing base 301 is mounted on the base 1. The fixing base 301 is provided with a positioning component 3, which is used to fix the wire 401 of the sensor 4.

[0040] The fixed plate 204 is provided with conductive terminals 208, which are electrically connected to the channel switcher. The base 1 is provided with a drive mechanism 2, the output end of which is connected to the fixed plate 204 and is used to drive the conductive terminals 208 to move closer to or away from the positioning component 3.

[0041] The base 1 is a support structure for mounting the sensor 4, which can be made of metal or engineering plastic. It is detachably connected to the sensor 4 via snap-fit ​​or threaded connection, providing a stable mounting base for the sensor 4 and facilitating disassembly and maintenance. The mounting base 301 is a load-bearing structure mounted on the base 1, which can be fixed with bolts or snap-fit. It supports the positioning component 3 and provides fixed support for the wire 401, preventing poor contact due to movement of the wire 401 during detection. The positioning component 3 is a constraint mechanism set on the mounting base 301, which can be a clamp or a limiting slot. It mechanically limits the spatial position of the sensor 4 wire 401, ensuring precise alignment between the wire 401 and the conductive terminal 208, reducing manual adjustment. The conductive terminal 208 is a conductive component connected to the power supply, which can be a copper alloy spring or probe structure. It forms an electrical connection circuit by welding or plugging into an external power source, establishing a conductive state with the wire 401 using elastic or sliding contact, enabling automated transmission of the detection signal. Among them, the driving mechanism 2 refers to the power device that controls the movement of the conductive terminal 208. Specifically, it can be implemented by a linear motor or cylinder structure. It forms a detachable connection with the fixed plate 204 through a push rod or slider, driving the conductive terminal 208 to generate linear displacement to contact or detach from the wire 401, thus replacing manual operation to complete the switching of the conductive path.

[0042] This invention achieves the positioning and fixing of the sensor 4 wire 401 and automated electrical contact through a combination structure of base 1, fixing seat 301 and fixing plate 204. The design of the drive mechanism 2 driving the conductive terminal 208 to move enables the wire 401 to complete the automatic switching of batch detection signals under positioning constraint. By replacing the traditional manual insertion and removal operation with mechanical motion control, it effectively solves the problem of low efficiency caused by frequent clamping of the wire 401 during the detection process.

[0043] The working process and principle of this application are as follows: the sensor 4 data acquisition device achieves rapid positioning and automated electrical contact of the sensor 4 wire 401 through an integrated structural design. The base 1 provides basic support, and the sensor 4 is detachably connected to the base 1 for easy installation and replacement. A fixing seat 301 is mounted on the base 1, and the positioning component 3 on the fixing seat 301 is used to fix the sensor 4 wire 401, preventing poor contact due to movement of the wire 401 during detection. A conductive terminal 208 is provided on the fixing plate 204, which is electrically connected to an external power source for transmitting electrical signals. The drive mechanism 2 on the base 1 is connected to the fixing plate 204, controlling the movement of the conductive terminal 208 relative to the positioning component 3.

[0044] The drive mechanism 2 moves the fixed plate 204, allowing the conductive terminal 208 to automatically move closer to or further away from the positioning component 3. When an electrical connection is required, the drive mechanism 2 pushes the fixed plate 204, bringing the conductive terminal 208 closer to the positioning component 3 and making contact with the sensor 4 wire 401 fixed on the positioning component 3, thus establishing an electrical connection. When it is necessary to disconnect or switch to another wire 401, the drive mechanism 2 moves the fixed plate 204 away from the positioning component 3, separating the conductive terminal 208 from the wire 401. This linkage design of mechanical movement and electrical contact control ensures that the switching process of the wire 401 requires no manual intervention.

[0045] The synergistic effect of the positioning component 3 and the conductive terminal 208, through an integrated design of physical constraint and electrical connection, ensures both the fixing accuracy of the wire 401 and the reliable transmission of the detection signal. The positioning component 3 fixes the position of the wire 401, while the movement of the conductive terminal 208 provides precise electrical contact. This design eliminates the uncertainty in traditional manual insertion and removal operations, improving the stability and reliability of the contact.

[0046] The entire device operates with features of automation and precise control. Through the precise control of the drive mechanism 2, the conductive terminal 208 can accurately establish or disconnect an electrical connection with the wire 401 fixed on the positioning component 3, which not only improves detection efficiency but also reduces the risk of errors and damage that may be caused by human operation.

[0047] In one exemplary embodiment, the mounting base 301 has at least one placement slot 302 for placing the sensor 4 wire 401.

[0048] In this embodiment, the shape of the placement slot 302 is configured to fit the outer contour of the sensor 4 wire 401, for example, using a U-shaped or V-shaped slot structure. Its width is designed to be slightly larger than the diameter of the wire 401 to allow the wire 401 to be embedded, while restricting the lateral movement of the wire 401 within the slot. The depth of the placement slot 302 is set to be greater than the radius of the wire 401, thereby constraining the degree of freedom of the wire 401 to detach from the slot in the vertical direction. The number of placement slots 302 corresponds to the position of the conductive terminals 208, so that the wire 401 corresponding to each conductive terminal 208 can be independently accommodated in its respective slot, avoiding interference between multiple wires 401.

[0049] For example, in this embodiment, the sensor 4 has four wires 401, and correspondingly, the number of placement slots 302 is also four, with the four wires 401 located in their respective placement slots 302.

[0050] Specifically, when the sensor 4 wire 401 is placed in the placement groove 302, the sidewalls and bottom of the groove form a physical limit by contacting the surface of the wire 401, preventing the wire 401 from displacing horizontally along the surface of the fixing base 301. When the drive mechanism 2 pushes the fixing plate 204 to bring the conductive terminal 208 closer to the wire 401, the position of the wire 401 remains fixed due to the constraint of the groove, and the contact area of ​​the conductive terminal 208 can always be aligned with the preset contact point on the surface of the wire 401. For example, when the width of the placement groove 302 is 1.1-1.3 times the diameter of the wire 401, the wire 401 can slightly adjust its posture within the groove, but cannot produce an offset beyond the contact range of the conductive terminal 208. Through this structure, the contact pressure distribution between the wire 401 and the conductive terminal 208 tends to be uniform, avoiding contact resistance fluctuations caused by the sliding of the wire 401, thereby ensuring the stability of the detection signal transmission.

[0051] For example, in this embodiment, the positioning plate 303 may be made of insulating material to prevent the wire 401 from short-circuiting with the positioning plate 303.

[0052] For example, the positioning plate 303 is detachably connected to the fixing seat 301 by a set screw 313.

[0053] It is worth noting that, through the above technical solution, this application provides a stable physical limiting space for the wire 401 of the sensor 4. The structure of the placement groove 302 effectively constrains the lateral movement of the wire 401, enabling the wire 401 to maintain a predetermined arrangement path on the surface of the fixing plate 204. When the conductive terminal 208 approaches the wire 401, the wire 401 cannot deviate from its predetermined position due to the constraint of the placement groove 302, thereby ensuring precise alignment of the contact area between the conductive terminal 208 and the wire 401. This solves the problem of unstable contact caused by the free placement of the wire 401, improves the reliability of electrical signal transmission, and thus enhances the accuracy and stability of data acquisition by the sensor 4.

[0054] In an exemplary embodiment, the positioning component 3 includes a positioning plate 303 and a positioning mechanism disposed on the positioning plate 303. The positioning plate 303 is detachably connected to the fixed base 301. The positioning plate 303 has a positioning hole 304 corresponding to the placement groove 302. The positioning hole 304 communicates with the placement groove 302. The positioning plate 303 is provided with a positioning groove 305 corresponding to the placement groove 302. The positioning groove 305 is located on one side of the positioning hole 304.

[0055] The positioning plate 303 and the fixing base 301 are detachably connected by snaps or bolts, allowing for the replacement of positioning plates 303 with different hole diameters according to the diameter of the wire 401. The positioning hole 304 is aligned with the axis of the placement groove 302, and the hole diameter can be set to be 0.1-0.3 mm larger than the diameter of the wire 401. For example, when the diameter of the wire 401 is 2 mm, the positioning hole 304 can be designed to be 2.2 mm. The positioning groove 305 is set with a U-shaped structure. The positioning mechanism may include a threaded drive structure, and its clamping stroke range is set to 3-5 mm to adapt to the clamping requirements of wires 401 of different specifications. When the positioning plate 303 is installed on the fixing base 301, the positioning groove 305 and the placement groove 302 form a continuous guide channel, and the axis of the positioning hole 304 coincides with the moving trajectory of the conductive terminal 208.

[0056] For example, the positioning component 3 includes a positioning plate 303 and a positioning mechanism disposed on the positioning plate 303. The positioning plate 303 is detachably connected to the fixed base 301. The positioning plate 303 has a positioning hole 304 corresponding to the placement groove 302, and the positioning hole 304 communicates with the placement groove 302. The positioning plate 303 also has a positioning groove 305 corresponding to the placement groove 302, and the positioning groove 305 is located on one side of the positioning hole 304. Specifically, the wire 401 is first placed in the placement groove 302 of the fixed base 301. Due to the U-shaped structure of the placement groove 302, the wire 401 is laterally limited, and the wire 401 is constrained to have an offset of no more than 0.5 mm before entering the positioning hole 304. When the conductive terminal 208 moves toward the positioning hole 304 under the push of the driving mechanism 2, the contact head 2084 passes through the positioning hole 304 and enters the area of ​​the placement groove 302. At this time, the longitudinal position of the wire 401 is precisely defined by the placement groove 302 and the inner wall of the positioning hole 304. Before the conductive terminal 208 contacts the wire 401, the positioning mechanism drives the execution plate 310 to move via the rotary drive rod 311, causing the clamping block 308 to apply a vertical clamping force to the positioned wire 401. The clamping force is controlled between 2-5 Newtons, further fixing the wire 401 within the placement groove 302 and preventing positional deviation during detection. This ensures contact stability and avoids damage to the insulation layer of the wire 401. The detachable feature of the positioning plate 303 means that when the sensor model 4 needs to be replaced, only the corresponding specification of the positioning plate 303 assembly needs to be replaced, without replacing the entire fixing base 301. Through the graded positioning of the positioning groove 305 and the positioning hole 304, and the dynamic clamping of the positioning mechanism, the lateral offset of the wire 401 is controlled within ±0.2 mm, and the contact resistance fluctuation range is reduced to below 5%, effectively improving the stability of data acquisition.

[0057] For example, the positioning mechanism includes a drive rod 311 and an execution plate 310. The drive rod 311 is rotatably connected to the positioning plate 303, and the execution plate 310 is threadedly connected to the drive rod 311. The execution plate 310 is provided with a connecting rod 309 corresponding to the positioning groove 305. The free end of the connecting rod 309 is provided with a fixed rod 307 that is slidably connected to the positioning groove 305. The side of the fixed rod 307 away from the connecting rod 309 is provided with a clamping block 308 for clamping the wire 401. Specifically, when the drive rod 311 is rotated, its threaded transmission pushes the execution plate 310 to translate along the axial direction. The displacement of the execution plate 310 is synchronously transmitted to multiple fixed rods 307 through the connecting rod 309, so that each fixed rod 307 moves synchronously along the sliding groove 306 direction of the positioning groove 305. The clamping block 308 at the end of the fixed rod 307 then generates a linear displacement to press the surface of the wire 401 in the vertical direction. Due to the self-locking characteristic of the threaded drive, the actuator plate 310 maintains a stable position after movement, preventing loosening caused by vibration. The guide rod 312 restricts the actuator plate 310 to move only along the axial direction of the drive rod 311, ensuring uniform force on each connecting rod 309. The elastic material of the clamping block 308 deforms when it contacts the conductor 401, converting linear displacement into uniformly distributed contact pressure, which can be controlled within the range of 0.5-3N. This mechanical linkage structure can achieve synchronous clamping at multiple points by rotating a single drive rod 311, and the clamping force deviation can be controlled within ±5%, which is significantly better than the ±20% deviation range of manual operation. In a specific embodiment, the bottom surface of the clamping block 308 can be designed as an arc to increase the contact area with the wire 401. The bottom of the clamping block 308 is also provided with a relief groove, which can fit against the outer wall of the wire 401 to improve the positioning ability of the wire 401. In a specific embodiment, the clamping block 308 is made of a material with extensibility such as rubber to ensure that the wire 401 is not damaged.

[0058] For example, the drive rod 311 and the positioning plate 303 are rotatably connected via bearings, and the actuator plate 310 is threadedly connected to the drive rod 311. The actuator plate 310 is provided with a connecting rod 309 corresponding to the positioning groove 305, and the free end of the connecting rod 309 is provided with a fixing rod 307 that is slidably connected to the positioning groove 305. A clamping block 308 for clamping the wire 401 is provided on the side of the fixing rod 307 away from the connecting rod 309.

[0059] For example, the positioning groove 305 is provided with a sliding groove 306 for the fixed rod 307 to slide, and the execution plate 310 is provided with a plurality of guide rods 312 that are slidably connected to the positioning plate 303. Through the provided sliding groove 306, the fixed rod 307 can slide up and down in the positioning groove 305, thereby providing precise guidance for the fixed rod 307.

[0060] It is worth noting that this embodiment implements multi-level positioning control for the sensor 4 wire 401 during the fixing process. The detachable connection design between the positioning plate 303 and the fixing base 301 allows for flexible replacement of suitable positioning components according to different sensor 4 types or wire 401 specifications, improving the versatility of the device. The communication structure between the positioning hole 304 and the placement groove 302 ensures the uniqueness of the path of the wire 401 extending from the placement groove 302 to the positioning hole 304, avoiding misalignment of the wire 401 due to excessive freedom during the fixing process. The positioning mechanism further enhances the dynamic fixing capability of the wire 401. Through the synergistic effect of the mechanical structure, additional clamping force is applied after the wire 401 completes the initial positioning, thereby improving contact stability while ensuring the positional accuracy of the wire 401. This multi-level positioning control mechanism significantly reduces the possibility of the wire 401 shifting or loosening within the placement groove 302, thereby improving the reliable contact between the conductive terminal 208 and the wire 401 and enhancing the stability of data acquisition.

[0061] In an exemplary embodiment, the drive mechanism 2 includes a mounting plate 201 and a driver 202 disposed on the mounting plate 201. The output end of the driver 202 is provided with a push block 203, which is detachably connected to a fixing plate 204. A reinforcing plate 206 is detachably connected to the mounting plate 201.

[0062] In this embodiment, when the driver 202 is started, the output shaft drives the push block 203 to push the fixed plate 204 in a straight line. The push block 203 drives the fixed plate 204 to move synchronously, and drives the conductive terminal 208 on the fixed plate 204 to move to the wire 401 to contact the wire 401 and be energized.

[0063] For example, the drive mechanism 2 includes a mounting plate 201 and a driver 202 disposed on the mounting plate 201. The driver 202 can be an electric actuator or a cylinder. The output end of the driver 202 is provided with a push block 203, which is detachably connected to the fixing plate 204 by bolts. A reinforcing plate 206 is detachably connected to the mounting plate 201, and the reinforcing plate 206 is fixed to the mounting plate 201 by multiple screws. The reinforcing plate 206 can be made of a metal material, such as stainless steel or aluminum alloy. The shape of the reinforcing plate 206 can be designed as L-shaped or U-shaped to enhance the support effect on the mounting plate 201.

[0064] For example, a positioning rod 205 is provided on the base 1, and the fixing plate 204 is slidably connected to the positioning rod 205. In this embodiment, the positioning rod 205 can be vertically fixed to the edge areas on both sides of the base 1, and there can be two rods distributed in parallel. The diameter of the rod can be 5-15mm, and it is made of stainless steel or aluminum alloy to ensure rigidity. The sliding connection can be achieved by setting sliding sleeves that match the positioning rod 205 on both sides of the fixing plate 204. The inner wall of the sliding sleeve can be coated with polytetrafluoroethylene to reduce the coefficient of friction, for example, the coefficient of friction is controlled in the range of 0.05-0.15. When the drive mechanism 2 pushes the fixing plate 204 to move, the cooperation between the positioning rod 205 and the sliding sleeve forms an axial constraint, so that the fixing plate 204 can only be linearly translated along the extension direction of the positioning rod 205. This guide structure can form a spatial complement with the push block 203 of the drive mechanism 2. The direction of the driving force applied by the push block 203 coincides with the axial direction of the positioning rod 205, thereby avoiding the torque effect caused by the eccentricity of the driving force.

[0065] It should also be noted that the positioning rod 205 on the base 1 can be a cylindrical metal rod with a diameter of 5 mm. A through hole matching the positioning rod 205 is formed on the fixing plate 204, with the inner diameter of the through hole slightly larger than the outer diameter of the positioning rod 205, for example, 5.1 mm. The fixing plate 204 is slidably connected to the positioning rod 205 through the through hole, achieving precise guidance in the vertical direction. The positioning rod 205 can be made of stainless steel to improve wear resistance and service life. The fixing plate 204 can be made of engineering plastic material to reduce weight while ensuring sufficient strength. The length of the positioning rod 205 can be designed according to the travel distance of the fixing plate 204, for example, it can be 20 mm longer than the maximum travel distance of the fixing plate 204. The bottom end of the positioning rod 205 can be fixed to the base 1 by threaded connection or welding, and the top end can be provided with a limiting structure to prevent the fixing plate 204 from detaching.

[0066] In an exemplary embodiment, a connecting plate 207 is provided at the bottom of the fixing plate 204, and a conductive terminal 208 is disposed through the fixing plate 204 and the connecting plate 207. One end of the conductive terminal 208 is used to connect to the channel switcher, and the other end can be used to contact the wire 401 of the sensor 4.

[0067] In this embodiment, when the driving mechanism 2 pushes the fixed plate 204 to move towards the positioning component 3, the double support structure formed by the connecting plate 207 and the fixed plate 204 constrains the vertical degree of freedom of the conductive terminal 208, controlling the offset within ±0.2mm. The conductive terminal 208 passes through the interference fit assembly of the two plates, and its fit tolerance is controlled at the H7 / h6 level to eliminate lateral sway gaps. During the movement, the fixed plate 204 slides along the positioning rod 205, forming a three-dimensional constraint with the double fixing structure, so that the straightness error of the moving trajectory of the conductive terminal 208 is less than 0.05mm / m. When the contact head 2084 contacts the sensor 4 wire 401, the internal buffer spring 2083 generates a contact pressure of 10-15N. The spring 2083 is compressed, improving the stability of the contact, and the pressure fluctuation range is maintained within ±1N by the rigid support of the connecting plate 207. The connection point between the connecting plate 207 and the push block 203 of the drive mechanism 2 is set at the geometric center of the plate, so that the driving force is symmetrically distributed and the risk of deflection caused by torque is reduced.

[0068] For example, the connecting plate 207 and the fixing plate 204 can be assembled by welding or bolting, with the distance between them maintained within the range of 2-5mm. The conductive terminal 208 is made of copper alloy, with its diameter tolerance controlled within ±0.05mm, and its parallelism error with the axis of the positioning rod 205 in the length direction not exceeding 0.1mm. A hemispherical contact head 2084 can be configured at the end of the conductive terminal 208, and the surface of the contact head 2084 is silver-plated with a thickness of 3-5μm. A guide boss can be provided at the bottom of the connecting plate 207 to form a clearance fit with the positioning rod 205 of the base 1, with the clearance size controlled between 0.05-0.1mm. A buffer spring 2083 can be provided inside the conductive terminal 208, with the spring coefficient of the spring 2083 ranging from 5-8N / mm, and the pre-compression amount set to 30% of the total stroke.

[0069] For example, the conductive terminal 208 includes a housing 2081 and a base rod 2082. The base rod 2082 is slidably connected within the housing 2081. A spring 2083 is provided between the inner bottom of the housing 2081 and the base rod 2082. A contact head 2084 is provided at the end of the base rod 2082 away from the spring 2083. The contact head 2084 can pass through the positioning hole 304 and enter the placement groove 302 to contact the wire 401 of the sensor 4. The housing 2081 is configured as a cylindrical cavity structure, and the base rod 2082 is set as a rod-shaped component that can slide along the axial direction of the housing 2081. The spring 2083 is used to achieve adaptive adjustment of the contact pressure. The contact head 2084 is designed as a cylindrical copper alloy material with a silver-plated surface to enhance conductivity. The sliding connection between the base rod 2082 and the housing 2081 is achieved through a guide groove and a limiting protrusion to ensure the straightness of the sliding path. A spring 2083 mounting groove is provided between the bottom of the outer casing 2081 and the base rod 2082. Both ends of the spring 2083 are embedded in the groove and secured with clips to prevent displacement. In a specific embodiment, when the conductive terminal 208 moves towards the wire 401, the contact head 2084 passes through the positioning hole 304 into the placement groove 302 and contacts the surface of the wire 401. During contact, if there is a dimensional deviation or installation misalignment in the wire 401, the contact head 2084, under the reaction force of the wire 401, pushes the base rod 2082 to slide along the inner wall of the outer casing 2081, and the spring 2083 is compressed and deformed accordingly. Through the elastic deformation of the spring 2083, the pressure applied by the contact head 2084 to the wire 401 is dynamically adjusted: when the diameter of the wire 401 is too small, the spring 2083 pushes the base rod 2082 to extend the contact stroke to compensate for the gap; when the diameter of the wire 401 is too large, the spring 2083 compresses to absorb excessive displacement to prevent damage to the wire 401. The hemispherical end of the contact head 2084 makes point contact with the surface of the wire 401 during sliding, reducing frictional resistance and improving contact stability. The sliding fit between the housing 2081 and the base rod 2082 constrains the movement trajectory of the contact head 2084, ensuring it always moves in a direction perpendicular to the axis of the wire 401, preventing poor contact due to lateral offset. The preset compression of the spring 2083 is controlled within the range of 3-5mm, for example, 4mm, ensuring that the contact pressure is maintained in the range of 0.8-1.5N, achieving reliable electrical conduction without damaging the insulation layer of the wire 401. After the contact head 2084 enters the placement slot 302, the continuous elastic force of the spring 2083 creates a constant contact resistance between the contact head 2084 and the wire 401, ensuring the stability of the detection signal.

[0070] In one exemplary embodiment, the sensor 4 data acquisition device further includes a power supply, which is disposed in the base 1 and electrically connected to the channel switch.

[0071] In this embodiment, the power supply can power the channel switcher, so that the channel switcher is electrically connected to the wire 401 of the sensor 4 through the conductive terminal 208. Then, the corresponding connector is powered on and off by the preset program, thereby detecting the basic data of the sensor 4.

[0072] For example, in this embodiment, the power supply is integrated inside the base 1, and a switch 101 for controlling the power supply is provided on the outside of the base 1, so that the channel controller can be powered synchronously.

[0073] In summary, under the drive of the drive mechanism 2, the conductive terminal 208 can automatically energize the wire 401 of the sensor 4, and perform corresponding detection after connecting to the power supply, thereby improving the detection efficiency of the sensor 4.

[0074] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A sensor data acquisition device, characterized in that, include: The sensor is detachably connected to the base. A mounting base is provided on the base, and the mounting base is provided with a positioning component for fixing the wires of the sensor; A fixed plate is provided with conductive terminals, which are electrically connected to a channel switcher. A driving mechanism is provided on the base, and the output end of the driving mechanism is connected to the fixed plate and is used to drive the conductive terminals to move closer to or away from the positioning component.

2. The sensor data acquisition device according to claim 1, characterized in that: The mounting base has at least one slot for placing the sensor wire.

3. The sensor data acquisition device according to claim 2, characterized in that: The positioning component includes a positioning plate and a positioning mechanism disposed on the positioning plate. The positioning plate is detachably connected to the fixed base. The positioning plate has a positioning hole corresponding to the placement slot, and the positioning hole communicates with the placement slot. The positioning plate is provided with a positioning groove corresponding to the placement slot, and the positioning groove is located on one side of the positioning hole.

4. The sensor data acquisition device according to claim 3, characterized in that: The positioning mechanism includes a drive rod and an execution plate. The drive rod is rotatably connected to the positioning plate, and the execution plate is threadedly connected to the drive rod. The execution plate is provided with a connecting rod corresponding to the positioning groove. The free end of the connecting rod is provided with a fixing rod that is slidably connected to the positioning groove. The side of the fixing rod away from the connecting rod is provided with a clamping block for clamping the wire.

5. The sensor data acquisition device according to claim 4, characterized in that: The positioning groove is provided with a sliding groove for fixing the rod to slide, and the execution plate is provided with a plurality of guide rods that are slidably connected to the positioning plate.

6. The sensor data acquisition device according to claim 1, characterized in that: The drive mechanism includes a mounting plate and a driver mounted on the mounting plate. The output end of the driver is provided with a push block, which is detachably connected to the fixed plate. A reinforcing plate is detachably connected to the mounting plate.

7. The sensor data acquisition device according to claim 1, characterized in that: The base is provided with a positioning rod, and the fixing plate is slidably connected to the positioning rod.

8. The sensor data acquisition device according to claim 1, characterized in that: The bottom of the fixed plate is provided with a connecting plate, and the conductive terminal is disposed through the fixed plate and the connecting plate. One end of the conductive terminal is used to connect to the channel switcher, and the other end can be used to contact the wire of the sensor.

9. The sensor data acquisition device according to claim 3, characterized in that: The conductive terminal includes a housing and a base rod. The base rod is slidably connected inside the housing. A spring is provided between the inner bottom of the housing and the base rod. A contact head is provided at the end of the base rod away from the spring. The contact head can be used to pass through the positioning hole and enter the placement slot to contact the wire of the sensor.

10. The sensor data acquisition device according to claim 1, characterized in that: The sensor data acquisition device also includes a power supply, which is located inside the base and is electrically connected to the channel switch.

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