A voltage detector

Abstract

The utility model discloses a voltage detector belongs to electrical equipment field. The detector includes base, front and back displacement mechanism, up and down displacement mechanism, left and right displacement mechanism, detection device and control terminal, realizes accurate displacement of three -dimensional direction through screw -nut structure and lead -screw cooperation, and electrode needle is vertically arranged on detection device, can contact electronic component contact point and carry out voltage measurement. Control terminal is equipped with display screen and control key, supports automatic positioning measurement and manual adjustment. Compared with traditional manual measurement, the device can reduce the labor intensity, guarantees the stability of displacement through the self -locking of screw -nut, is applicable to the voltage detection of complex scene such as large -scale PCB electronic board, has the characteristics such as positioning accurate, high degree of automation.

Description

Technical Field

[0001] This utility model relates to the technical field of electrical equipment, and in particular to a voltage detector. Background Technology

[0002] In the field of electronic equipment manufacturing and maintenance, voltage testing is a crucial step in ensuring circuit performance and component reliability. Especially during the production and debugging of large PCBs (Printed Circuit Boards), the voltage parameters of densely distributed components such as resistors, capacitors, and integrated circuits on the board must be tested one by one to ensure normal circuit function. Traditional voltage testing methods mainly rely on manual contact measurement using a handheld multimeter. This method reveals significant limitations when dealing with high-density, multi-component PCBs. First, it is labor-intensive and inefficient: manual measurement requires operators to hold the multimeter probes and locate and contact the component contacts one by one on the PCB. For large circuit boards with thousands of components, a single measurement can take several hours, and frequent adjustments to posture are necessary, leading to increased worker fatigue and a significant decrease in efficiency. Second, it is structurally complex and costly: some existing automated voltage testing equipment uses industrial robotic arms, which can achieve displacement control, but the drive system, sensors, and programming logic of the robotic arm are complex, with manufacturing costs reaching tens of thousands of yuan, making it unaffordable for small and medium-sized enterprises. Third, the simple structure leads to poor positioning accuracy: traditional equipment mostly uses fixed tracks or single-direction adjustment structures, which cannot adapt to scenarios where components on the PCB board have different heights and dense layouts.

[0003] Therefore, there is an urgent need for a new voltage detection device to meet the automated testing requirements of high-density PCBs in modern electronic manufacturing. Utility Model Content

[0004] The purpose of this utility model is to provide a voltage detector to solve the problems of high labor intensity and low efficiency, complex structure and high cost, and poor positioning accuracy caused by simple structure in the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a voltage detector, comprising a base, a front-to-back displacement mechanism, a vertical displacement mechanism, a left-to-right displacement mechanism, a detection device, and a control terminal; characterized in that the upper surface of the base is provided with a working surface, the control terminal is fixed to the front end of the upper surface of the working surface, the front-to-back displacement mechanism is disposed inside the base, the vertical displacement mechanism is vertically disposed on the front-to-back displacement mechanism, the left-to-right displacement mechanism is connected to the vertical displacement mechanism, and the detection device is connected to the left-to-right displacement mechanism.

[0006] Preferably, the forward and backward displacement mechanism includes a motor A fixed to the outside of the front end of the base, a lead screw A fixed to the output shaft of the motor A, the lead screw A being longitudinally rotatably connected to the inside of the base, a nut block A being threadedly connected to the lead screw A, and a connecting plate being fixed to the top of the nut block A.

[0007] Preferably, two lead rods are symmetrically arranged on the left and right sides of the lead screw, and each lead rod is slidably connected to a lead sliding block. The lead sliding blocks of the two lead rods are fixedly connected to the connecting plate of the lead screw.

[0008] Preferably, the vertical displacement mechanism includes two symmetrically arranged track columns, each track column is fixed to the upper surface of the lead sliding block A, and a connecting plate is provided between the top and middle of the two track columns; a motor B is fixed to the top of each track column, and a lead screw B is fixed to the output shaft of the motor B, and the lead screw B is simultaneously vertically fixed to the upper surface of the lead sliding block A.

[0009] Preferably, each track column is provided with a limiting slider, which is connected to the lead screw via a thread; the two limiting sliders are symmetrical from left to right; each limiting slider is symmetrically provided with a roller, which engages with the outer surface of the track column.

[0010] Preferably, the left and right displacement mechanism includes a connecting plate, which is fixed to the front end of two limit sliders. A motor C is fixed on the connecting plate, and a lead screw C is fixed to the output shaft of the motor C. The lead screw C is arranged horizontally and parallel to the ground. A nut block B is threadedly connected inside the lead screw C. A guide rod B parallel to the lead screw C is provided above the lead screw C, and a guide sliding block B is slidably connected inside the guide rod B.

[0011] Preferably, the detection device is fixed to the front end of both the nut block B and the lead sliding block B, and the detection device is equipped with an electrode needle, the central axis of which is perpendicular to the ground.

[0012] Preferably, the control terminal is equipped with a display screen and control keys, including forward, backward, left, right, up, down and confirm keys.

[0013] Compared with the prior art, the present invention has the following beneficial effects.

[0014] 1. Through the lead screw and nut structure of the forward, backward, up, down, and left / right displacement mechanism, combined with the guide rod, the detection device can be precisely adjusted in three-dimensional space. This ensures that the electrode needle accurately contacts the target contact point, solving the problem of inaccurate positioning in traditional manual measurement.

[0015] 2. The control terminal supports automatic program control and manual button adjustment. In automatic mode, batch measurements can be completed according to preset programs, while manual mode is convenient for fine-tuning or testing at specific points.

[0016] 3. This device can greatly reduce the time required for manual labor, reduce labor intensity, significantly improve production efficiency, and has a simple structure, which reduces manufacturing costs.

[0017] Other advantages, objectives and features of this invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be taught from practice of this invention. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention without the control terminal.

[0020] Figure 3 for Figure 2 The main view.

[0021] Figure 4 for Figure 3 Left view.

[0022] Figure 5 for Figure 3 Top view.

[0023] Figure 6 for Figure 3 Sectional view of AA.

[0024] Figure 7 for Figure 5 BB section view.

[0025] In the diagram: 1. Base; 101. Working surface; 2. Forward and backward displacement mechanism; 201. Motor A; 202. Lead screw A; 203. Connecting plate; 204. Lead slider A; 206. Lead rod A; 207. Nut block A; 3. Up and down displacement mechanism; 301. Track column; 302. Roller; 303. Limit slider; 304. Motor B; 305. Lead screw B; 4. Left and right displacement mechanism; 401. Detection device; 402. Electrode needle; 403. Motor C; 404. Lead screw C; 405. Lead slider B; 406. Lead rod B; 407. Nut block B; 5. Control terminal; 501. Forward key; 502. Backward key; 503. Left key; 504. Right key; 505. Up key; 506. Down key; 507. Confirm key. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Reference Figure 1-7 A voltage detector includes a base 1, a front-to-back displacement mechanism 2, a vertical displacement mechanism 3, a left-to-right displacement mechanism 4, a detection device 401, and a control terminal 5. The upper surface of the base 1 is provided with a working surface 101. The control terminal 5 is fixed to the front end of the upper surface of the working surface 101. The front-to-back displacement mechanism 2 is disposed inside the base 1. The vertical displacement mechanism 3 is vertically disposed on the front-to-back displacement mechanism 2. The left-to-right displacement mechanism 4 is connected to the vertical displacement mechanism 3. The detection device 401 is connected to the left-to-right displacement mechanism 4.

[0028] The aforementioned forward and backward displacement mechanism 2 includes a motor A 201 fixed to the outside of the front end of the base 1. A lead screw A 202 is fixed to the output shaft of the motor A 201. The lead screw A 202 is longitudinally rotatably connected inside the base 1. A nut block A 207 is threadedly connected to the lead screw A 202, forming a lead screw and nut structure. A connecting plate 203 is fixed to the top of the nut block A 207. Two lead rods A 206 are symmetrically arranged on the left and right sides of the lead screw A 202. A lead sliding block A 204 is slidably connected to each lead rod A 206. The lead sliding blocks A 204 of the two lead rods A 206 are fixedly connected to the connecting plate 203 of the lead screw A 202. The motor A201 is started to rotate in both directions, which drives the lead screw A202 to rotate in both directions, causing the nut block A207 to slide back and forth. The connecting plate 203 that fixes the top of the nut block A207 drives the two lead sliding blocks A204 to move back and forth synchronously, so that the track column 301 fixed on the upper surface of the lead sliding block A204 also completes the back and forth movement, thus causing the detection device 401 to undergo displacement changes in the back and forth direction.

[0029] The vertical displacement mechanism 3 includes two symmetrically arranged track columns 301. Each track column 301 is fixed to the upper surface of the lead sliding block A 204. A connecting plate 203 is provided between the top and middle of each track column 301. A motor B 304 is fixed to the top of each track column 301. A lead screw B 305 is fixed to the output shaft of the motor B 304 and is also vertically fixed to the upper surface of the lead sliding block A 204. Each track column 301 is provided with a limiting slider 303, which is connected to the lead screw B 305 by a thread. The two limiting sliders 303 are symmetrical. Each limiting slider 303 is symmetrically provided with rollers 302, which mesh with the outer surface of the track column 301. Simultaneously, two motors B304 are started and rotate synchronously in both directions, driving the lead screw B305 to rotate in both directions. This causes the limit slider 303 to slide up and down on the surface of the track column 301 using the roller 302, thus changing the displacement of the detection device 401 in the vertical direction. This allows the electrode needle 402 of the detection device to be adjusted to be in the position directly opposite the contact point for voltage measurement.

[0030] The left-right displacement mechanism 4 includes a connecting plate 203, which is fixed to the front ends of two limiting sliders 303. A motor C 403 is fixed to the connecting plate, and a lead screw C 404 is fixed to the output shaft of the motor C 403. The lead screw C 404 is horizontally arranged and parallel to the ground. A nut block B 407 is threadedly connected inside the lead screw C 404. A guide rod B 406 parallel to the lead screw C 404 is provided above it, and a guide sliding block B 405 is slidably connected inside the guide rod B 406. When the motor C 403 is started and rotated forward and reverse, it drives the lead screw C 404 to rotate forward and reverse, causing the nut block B 407 to slide left and right. The guide sliding block B 405, which is fixed to the same connecting plate 203 as the nut block B 407, slides left and right synchronously on the guide rod B 406. This causes the detection device 401, which is simultaneously fixed to the front ends of the nut block B 407 and the guide sliding block B 405, to also slide left and right, thus changing the displacement of the detection device 401 in the left and right direction.

[0031] The detection device 401 is fixed to the front end of both the nut block B 407 and the lead sliding block B 405. An electrode needle 402 is provided on the detection device 401. The central axis of the electrode needle 402 is perpendicular to the ground. A camera is also provided on the detection device 401 to observe the working status of the electrode needle 402. Its specific position is not shown in this embodiment, but can be selected according to your needs.

[0032] On a large PCB electronic board, various electronic components are densely packed together at different heights. To measure the voltage of these components, this invention utilizes a lead screw and nut structure to move forward, backward, left, right, and up and down, accurately positioning the measuring contact of each electronic component on the PCB board on the working surface 101. Electrode needles 402 then contact these contacts for measurement. Compared to traditional manual measurement with a handheld multimeter, this invention eliminates the need for tedious manual intervention, significantly reducing the labor intensity for workers. The lead screw and nut structure, with its forward, backward, up, down, and left / right displacement mechanism and guide rod, allows for precise adjustment of the detection device in three-dimensional space. This ensures accurate contact of the electrode needle with the target contact, solving the problem of inaccurate positioning in traditional manual measurements. Furthermore, the accurate positioning and the self-locking property of the lead screw and nut ensure that the stability remains stable after displacement changes in all directions, further reducing costs.

[0033] The control terminal 5 is equipped with a display screen and control keys, including a forward key 501, a backward key 502, a left key 503, a right key 504, an up key 505, a down key 506, and a confirmation key 507. The control terminal 5 supports automatic program control and manual key adjustment. In automatic mode, batch measurements can be completed according to a preset program, while manual mode facilitates fine-tuning or testing at specific points. The automatic control performs positioning and measurement according to the above steps based on the numbered program, and transmits the data measured by the electrode needle 402 to the display screen of the control terminal 5 via the detection device 401. The manual control is mostly used for measuring components at a fixed point. When measuring, the user presses the control keys: the forward key 501 and the backward key 502 move the detection device 401 forward and backward, the left key 503 and the right key 504 move the detection device 401 left and right, and the up key 505 and the down key 506 move the detection device 401 up and down. This allows the electrode needle 402 of the detection device to be adjusted to face the contact point. Pressing the confirmation key 507 performs voltage measurement. The camera on the detection device 401 provides real-time feedback on the contact status between the electrode needle 402 and the contact point, which is convenient for the operator to observe and adjust.

[0034] Working process: After connecting all components or structures of this utility model, ensure stability. Ensure the working surface 101 is level; connect the circuits of the control terminal 5 and each motor, and confirm that there is no jamming in the forward, backward, up, down, left, and right displacement mechanisms. Manual test: Press the "forward key 501" or "backward key 502" on the control terminal 5. The motor A 201 drives the lead screw A 202 to rotate forward or backward. The nut block A 207 drives the connecting plate 203 to move forward and backward through the threaded transmission. The lead sliding block A 204 slides synchronously on the lead rod A 206, so that the track column 301 fixed to the lead sliding block A 204 and the detection device 401 complete the forward and backward displacement until the electrode needle 402 is aligned with the forward and backward position of the target element. Pressing the "Left Move Key 503" or "Right Move Key 504" causes motor C 403 to drive lead screw C 404 to rotate. Nut block B 407 and lead slider B 405 slide left and right on lead rod B 406, causing the detection device 401 to move laterally, so that the central axis of electrode needle 402 is precisely aligned with the center of contact point. Pressing the "Up Key 505" or "Down Key 506" causes two motors B 304 to rotate synchronously. Lead screw B 305 drives limit slider 303 to slide up and down on track column 301. Roller 302 engages with the outer surface of track column 301 for guidance, causing the detection device 401 to move vertically, adjusting the height of electrode needle 402 to be flush with the component contact point. After positioning, pressing the "Confirm Key 507" causes electrode needle 402 to contact the contact point. The detection device 401 transmits voltage data to the display screen of control terminal 5, while the camera can observe the contact status in real time.

[0035] Automatic program measurement: Input PCB board component coordinate data or import CAD drawings into control terminal 5, and the system generates a measurement path program. After starting automatic mode, the equipment controls the movement of each displacement mechanism sequentially according to the program, automatically completing the positioning and measurement of all contacts, and storing the data in the control terminal.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

Claims

1. A voltage detector, comprising a base (1), a front-to-back displacement mechanism (2), a vertical displacement mechanism (3), a left-to-right displacement mechanism (4), a detection device (401), and a control terminal (5); characterized in that, The base (1) has a working surface (101) on its upper surface. The control terminal (5) is fixed at the front end of the upper surface of the working surface (101). The front and rear displacement mechanism (2) is set inside the base (1). The up and down displacement mechanism (3) is vertically set on the front and rear displacement mechanism (2). The left and right displacement mechanism (4) is connected to the up and down displacement mechanism (3). The detection device (401) is connected to the left and right displacement mechanism (4).

2. A voltage detector according to claim 1, characterized in that, The aforementioned front and rear displacement mechanism (2) includes a motor A (201) fixed to the outside of the front end of the base (1). The output shaft of the motor A (201) is fixed with a lead screw A (202). The lead screw A (202) is longitudinally rotatably connected to the inside of the base (1). A nut block A (207) is threadedly connected to the lead screw A (202). A connecting plate (203) is fixed to the top of the nut block A (207).

3. A voltage detector according to claim 2, characterized in that, The lead screw (202) is provided with two lead rods (206) symmetrically on the left and right sides. Each lead rod (206) is slidably connected with a lead sliding block (204). The lead sliding blocks (204) of the two lead rods (206) are fixedly connected to the connecting plate (203) of the lead screw (202).

4. A voltage detector according to claim 3, characterized in that, The up-down displacement mechanism (3) includes two track columns (301) arranged symmetrically on the left and right. Each track column (301) is fixed on the upper surface of the lead sliding block A (204). A connecting plate (203) is provided between the top and middle of each of the two track columns (301). A motor B (304) is fixed on the top of each track column (301). A lead screw B (305) is fixed on the output shaft of the motor B (304). The lead screw B (305) is also vertically fixed on the upper surface of the lead sliding block A (204).

5. A voltage detector according to claim 4, characterized in that, Each track column (301) is provided with a limiting slider (303), which is connected to the lead screw (305) by a thread; the two limiting sliders (303) are symmetrical from left to right; each limiting slider (303) is symmetrically provided with a roller (302), which meshes with the outer surface of the track column (301).

6. A voltage detector according to claim 5, characterized in that, The left and right displacement mechanism (4) includes a connecting plate (203), which is fixed to the front end of two limit sliders (303). A motor C (403) is fixed on the connecting plate (203). A lead screw C (404) is fixed to the output shaft of the motor C (403). The lead screw C (404) is arranged horizontally and parallel to the ground. A nut block B (407) is connected to the lead screw C (404) by a thread. A guide rod B (406) parallel to the lead screw C (404) is provided above the lead screw C (404). A guide sliding block B (405) is slidably connected inside the guide rod B (406).

7. A voltage detector according to claim 6, characterized in that, The detection device (401) is fixed at the front end of both the nut block B (407) and the lead sliding block B (405). An electrode needle (402) is provided on the detection device (401), and the central axis of the electrode needle (402) is perpendicular to the ground.

8. A voltage detector according to claim 1, characterized in that, The control terminal (5) is equipped with a display screen and control keys, including a forward key (501), a back key (502), a left key (503), a right key (504), an up key (505), a down key (506), and a confirmation key (507).

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