Positioning tool

Abstract

The utility model relates to a positioning tool, and the tool comprises a fixed seat which is provided with a limiting groove at one end, and the limiting groove is used for fixing a to-be-tested piece; the probe assembly is arranged at the other end of the fixed seat, and the probe assembly can move to abut against the electrical end of the to-be-tested piece; the driving assembly is mechanically connected with the probe assembly so as to drive the probe assembly to move in the direction close to or away from the limiting groove in the first direction, and the probe assembly is used for being electrically connected with the instrument assembly so as to feed back the open-circuit voltage of the to-be-tested piece. According to the positioning tool, in the whole measurement process, through cooperation of the limiting groove and the movable probe assembly, an electrical test can be rapidly and accurately carried out on the to-be-tested piece, the test time is saved, and the test accuracy is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of battery open circuit voltage testing, and in particular to a positioning tool. Background Art

[0002] In the prior art, batteries require OCV (Open Circuit Voltage) testing. In a battery or battery pack, the open circuit voltage is the voltage value measured without applying a load current. In battery testing, the open circuit voltage is typically used to evaluate the battery's charge and discharge status and performance. During the test, the placement and force of the measuring clamp can affect the test results. In the prior art, measurements are often performed manually using measuring instruments. Manual placement of the measuring clamp is uncontrollable, and it is impossible to accurately ensure the accurate placement of the measuring clamp for each battery. As a result, the tested battery's internal resistance and voltage may deviate to a certain extent, resulting in inaccurate measurement results. Utility Model Content

[0003] The present application provides a positioning tool to solve the problem of a certain degree of deviation between the internal resistance and voltage of the battery due to inaccurate manual placement of the probe.

[0004] The positioning tool according to this application includes:

[0005] A fixing seat, one end of which is provided with a limiting groove for fixing the piece to be tested;

[0006] A probe assembly is provided at the other end of the fixing base and is movable to abut against the electrical end of the device to be tested;

[0007] A drive assembly is mechanically connected to the probe assembly to drive the probe assembly to move along a first direction toward or away from the limit groove, and the probe assembly is used to be electrically connected to the instrument assembly to feed back the open circuit voltage of the device under test.

[0008] According to the positioning tool of the present application, the electrical end of the test piece includes a first extreme end and a second extreme end, the probe assembly includes a first probe and a second probe spaced apart along a second direction, the first probe is used to electrically abut against the first extreme end, and the second probe is used to electrically abut against the second extreme end, the driving assembly includes a driving part and a transmission member connected to the output end of the driving part, the transmission member is movably connected to the first probe and the second probe at the same time, and a spring is sandwiched between the transmission member and the first probe and between the transmission member and the second probe, wherein the second direction is perpendicular to the first direction.

[0009] Optionally, the first probe can be moved along the second direction toward or away from the second probe to a certain position and fixed.

[0010] Optionally, a slide rail is provided on the transmission member, and the probe assembly further includes a sliding member and a locking member, the sliding member is movably clamped in the slide rail, the locking member can unlock or lock the sliding member, the sliding member and the first probe are movably connected and the spring is clamped between the two.

[0011] Optionally, the positioning tool further includes a control module, a pressure sensor is provided between the transmission member and the spring connected to the second probe, and the pressure sensor and the drive assembly are both electrically connected to the control module.

[0012] Optionally, a detachable limiting member is provided on the fixing seat, and the limiting groove is defined on the limiting member.

[0013] Optionally, a first snap-fit portion is provided on the fixing seat, and a second snap-fit portion is provided on the limiting member, and the first snap-fit portion and the second snap-fit portion are snap-connected.

[0014] Optionally, a first guide portion is provided on the fixing seat, and a second guide portion is provided on the limiting member, and the first guide portion and the second guide portion cooperate with each other.

[0015] According to the positioning tool of the present application, the driving assembly includes a cylinder, and the output end of the cylinder is drivingly connected to the probe assembly.

[0016] Optionally, the positioning tool further includes a vent pipe, one end of which is connected to the air delivery port of the cylinder, and the other end of which is used to be connected to the air source, and an air pressure regulating valve is provided on the vent pipe.

[0017] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0018] The positioning tool provided in the embodiment of the present application has a limiting groove at one end of the fixing seat, which is used to accurately fix and limit the workpiece to be tested, ensuring the stability of the position of the workpiece to be tested during the measurement process. The probe assembly is arranged at the other end of the fixing seat, and the driving assembly is mechanically connected to the probe assembly, which can drive the probe assembly to move. The probe assembly moves toward the limiting groove and can be in close contact with the electrical end of the workpiece to be tested to perform an open circuit voltage test. When the measurement is completed, the driving assembly drives the probe assembly to move in a direction away from the limiting groove, thereby releasing the workpiece to be tested after the measurement is completed, making it easier for the user to remove the workpiece to be tested. In this process, the probe assembly moves toward the electrical end of the workpiece to be tested through the operation of the driving assembly. , which can ensure good contact. After the probe assembly contacts the piece to be tested, the instrument assembly obtains the open-circuit voltage through electrical connection, so that the data of the piece to be tested can be fed back. During the entire measurement process, through the cooperation of the limit slot and the movable probe assembly, electrical testing can be performed on the piece to be tested quickly and accurately, saving test time. The limit slot on the fixed seat can ensure that the piece to be tested is correctly fixed, and the mobility of the probe assembly and the design of the drive assembly can ensure that the probe assembly is in correct contact with the electrical end of the piece to be tested, thereby ensuring the accuracy of the test. In addition, the electrical connection between the probe assembly and the instrument assembly can timely feedback the open-circuit voltage of the piece to be tested, ensuring the accuracy and reliability of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0022] Figure 1 A three-dimensional diagram of a positioning tool provided in an embodiment of the present application.

[0023] Description of reference numerals:

[0024] The fixing seat 10 , the limiting groove 11 , the probe assembly 20 , the first probe 21 , the second probe 22 , the driving assembly 30 , the limiting member 40 , and the control module 50 . DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0026] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and configurations of specific examples are described below. Of course, these are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or configurations discussed.

[0027] For ease of description, spatially relative terms may be used herein to describe the relative position or movement of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," "above," "front," "back," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures undergoes a positional flip or a change in posture or a change in motion, then these directional indications will also change accordingly. For example, an element described as "below" or "below" another element or feature will subsequently be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein will be interpreted accordingly.

[0028] like Figure 1 As shown, the positioning tool according to the embodiment of the present application includes a fixing base 10 , a probe assembly 20 and a driving assembly 30 .

[0029] Specifically, a limiting groove 11 is provided at one end of the fixing base 10, and the limiting groove 11 is used to fix the piece to be tested; the probe assembly 20 is provided at the other end of the fixing base 10, and the probe assembly 20 can be moved to abut against the electrical end of the piece to be tested; the driving assembly 30 is mechanically connected to the probe assembly 20 to drive the probe assembly 20 to move along a first direction toward or away from the limiting groove 11, and the probe assembly 20 is used to be electrically connected to the instrument assembly to feedback the open circuit voltage of the piece to be tested.

[0030] To elaborate, a limiting groove 11 is provided at one end of the fixing base 10, and the limiting groove 11 is used to accurately fix and limit the part to be tested, ensuring the stability of the position of the part to be tested during the measurement process. The probe assembly 20 is arranged at the other end of the fixing base 10, and the driving assembly 30 is mechanically connected to the probe assembly 20, which can drive the probe assembly 20 to move. The probe assembly 20 moves toward the limiting groove 11 to make close contact with the electrical end of the part to be tested, so as to perform an open circuit voltage test. When the measurement is completed, the driving assembly 30 drives the probe assembly 20 to move in a direction away from the limiting groove 11, thereby releasing the part to be tested after the measurement is completed, making it easier for the user to remove the part to be tested. During this process, through the operation of the driving assembly 30, the probe assembly 20 moves toward the electrical end of the part to be tested, which can ensure good contact. After the probe assembly 20 contacts the part to be tested, the instrument assembly obtains the open circuit voltage through the electrical connection, so that the data of the part to be tested can be fed back.

[0031] The size and shape of the limiting groove 11 can be set according to the size, shape and dimensions of the workpiece to be tested; the driving component 30 is used to provide power, and can be an electric drive or a pneumatic drive.

[0032] According to the positioning tooling of the embodiment of the present application, during the entire measurement process, electrical testing can be performed quickly and accurately on the piece to be tested through the cooperation of the limiting groove 11 and the movable probe assembly 20, saving test time, and the limiting groove 11 on the fixing seat 10 can ensure that the piece to be tested is correctly fixed, and the mobility of the probe assembly 20 and the design of the driving assembly 30 can ensure that the probe assembly 20 is in correct contact with the electrical end of the piece to be tested, thereby ensuring the accuracy of the test. In addition, the electrical connection between the probe assembly 20 and the instrument assembly can provide timely feedback on the open-circuit voltage of the piece to be tested, thereby ensuring the accuracy and reliability of the test data.

[0033] like Figure 1As shown, according to the positioning tooling of the embodiment of the present application, the electrical end of the workpiece to be tested includes a first extreme end and a second extreme end, the probe assembly 20 includes a first probe 21 and a second probe 22 spaced apart along the second direction, the first probe 21 is used to electrically abut the first extreme end, and the second probe 22 is used to electrically abut the second extreme end, the driving assembly 30 includes a driving part and a transmission member connected to the output end of the driving part, the transmission member is movably connected to the first probe 21 and the second probe 22 at the same time, and a spring is sandwiched between the transmission member and the first probe 21 and between the transmission member and the second probe 22, wherein the second direction is perpendicular to the first direction.

[0034] In detail, the electrical end of the piece to be tested has two extremes (including a first extreme and a second extreme, wherein one of the first extreme and the second extreme is a positive extreme and the other is a negative extreme), and the detection assembly includes two probes (including a first probe 21 and a second probe 22), which can enable the two probes to independently and simultaneously make electrical contact with the two extremes of the piece to be tested. The driving part provides a power source and drives the first probe 21 and the second probe 22 to move through the transmission part, and springs are respectively sandwiched between the transmission part and the first probe 21 and the second probe 22, and the springs can provide elastic support for the first probe 21 and the second probe 22 respectively.

[0035] This has the following advantages: first, it can ensure that the contact force between the first probe 21 and the second probe 22 and the workpiece to be tested is adjustable and adaptable, ensuring that the probes (the first probe 21 and the second probe 22) can maintain a stable pressure when contacting the workpiece to be tested, thereby avoiding inaccurate measurements due to poor contact; second, by providing a spring, it can absorb part of the impact force, reducing the wear that may be caused by the first probe 21 and the second probe 22 in the process of contacting the workpiece to be tested, thereby extending the service life of the positioning tool; in addition, the cooperation between the first probe 21 and the second probe 22 and the spring can help adapt to workpieces to be tested of different shapes and sizes, thereby improving the versatility of the test.

[0036] The second direction is perpendicular to the first direction, so that the movement directions of the first probe 21 and the second probe 22 form an effective angle with the contact surface of the test piece, thereby facilitating accurate positioning, improving contact quality, and reducing errors.

[0037] In some embodiments, the first probe 21 can be moved along the second direction toward or away from the second probe 22 to a certain position and then fixed.

[0038] It can be understood that the first probe 21 can be moved along the second direction toward or away from the second probe 22. After moving into position, the first probe 21 is fixed. In this way, the spacing between the first probe 21 and the second probe 22 in the second direction can be changed to adapt to test pieces of different shapes and sizes, thereby improving the versatility of the test.

[0039] The certain position means that the first probe 21 moves to a desired position and stays at the position. During the process of the first probe 21 measuring the workpiece, the distance between the first probe 21 and the second probe 22 in the second direction does not change.

[0040] For example, in some embodiments, a gear transmission assembly is provided on the fixing base 10, the input member is connected to the gear, the gear and the rack are engaged, and the rack is connected to the first probe 21, so that the gear is driven to rotate by the input member, which will eventually cause the first probe 21 to move with the rack.

[0041] In some embodiments, a slide rail is provided on the transmission member, and the probe assembly 20 also includes a sliding member and a locking member. The sliding member can be movably clamped in the slide rail, and the locking member can unlock or lock the sliding member. The sliding member is movably connected to the first probe 21 and a spring is sandwiched between the two.

[0042] In detail, the slide rail provides a fixed track for guiding the movement of the sliding member, and the sliding member is installed in the slide rail and can move along the extension direction of the slide rail. The sliding member is connected to the first probe 21, so that the first probe 21 can be driven to move along the slide rail, thereby approaching the second probe 22 to shorten the distance between the two or moving away from the second probe 22 to increase the distance between the two. The locking member can control the position of the sliding member. After the sliding member moves into place, the locking member can lock the sliding member. In the locked state, the sliding member is fixed in a certain position, and when the sliding member needs to move, the locking member unlocks the sliding member. In this way, through the cooperation of the slide rail, the sliding member and the locking member, the precise adjustment and stable operation of the distance between the first probe 21 and the second probe 22 are achieved, which can be applicable to test pieces of different sizes and shapes, thereby improving the versatility of the positioning tooling.

[0043] In some embodiments, the positioning tool further includes a control module. A pressure sensor is provided between the transmission member and the spring connected to the second probe 22 . The pressure sensor and the driving assembly 30 are both electrically connected to the control module.

[0044] It can be understood that since the positioning tool can be used for test pieces of different shapes or sizes, the pressure sensor is set to monitor the pressure changes of the spring, thereby providing real-time feedback to the control module, thereby helping to determine whether the second probe 22 has moved into place, and the drive component 30 is also electrically connected to the control module. The control module combines the information from the pressure sensor and can more accurately control the contact between the second probe 22 and the first probe 21 and the two extremes (the first extreme and the second extreme) by controlling the drive component 30.

[0045] The first probe 21 and the second probe 22 have the same height in the first direction. Therefore, the situation between the first probe 21 and the DUT can be confirmed by simply judging the situation between the second probe 22 and the DUT. The error between the two is within the allowable range.

[0046] like Figure 1 As shown, in some embodiments, a detachable limiting member 40 is provided on the fixing seat 10 , and a limiting groove 11 is defined on the limiting member 40 .

[0047] Specifically, to enhance the versatility of the positioning tool, a detachable stopper 40 is provided on the fixing base 10. This allows users to select the appropriate stopper 40 based on the shape or size of the workpiece to be tested, and then assemble the stopper 40 with the fixing base 10. When the specifications of the workpiece to be tested need to be changed, the previous stopper 40 is removed and the newly matched stopper 40 is assembled with the fixing base 10. This enhances the versatility of the positioning tool, allowing for rapid adaptation and replacement according to different operational requirements, saving time and labor costs.

[0048] The detachable connection between the fixing base 10 and the limiting member 40 includes bolt connection, latch connection, snap connection, magnetic connection, and clamp connection. Specifically, in the bolt connection, the limiting member 40 is fixed to the fixing base 10 by bolts and nuts, which is convenient for disassembly and reinstallation; the latch connection uses a latch or pin to connect the limiting member 40 and the fixing base 10, which is simple and easy to disassemble; the snap connection uses a snap structure to enable the limiting member 40 to be quickly inserted into or removed from the fixing base 10; and the magnetic connection uses the attraction of a magnet to fix the limiting member 40 to the fixing base 10.

[0049] In some embodiments, the depth of the limiting groove 11 on the limiting member 40 is much smaller than the height of the piece to be tested, which can achieve positioning of the piece to be tested while reducing the difficulty of placing the piece to be tested into or taking it out of the limiting groove 11 .

[0050] In some embodiments, the fixing seat 10 is provided with a first buckle portion, the limiting member 40 is provided with a second buckle portion, and the first buckle portion and the second buckle portion are buckled together.

[0051] In detail, by snapping the first snap part and the second snap part together, the connection and disconnection between the limit member 40 and the fixing seat 10 can be easily achieved, which is convenient for the user to operate; at the same time, the first snap part and the second snap part are connected quickly and firmly, which is relatively safe and reliable; in addition, compared with other connection methods, the first snap part and the second snap part do not require additional parts such as screws and nuts, saving space.

[0052] The first snap-fitting portion and the second snap-fitting portion cooperate with each other. For example, one of them is configured as a notch, a tenon, etc., or a concave-convex structure, so that they can fit together.

[0053] In some embodiments, a first guide portion is provided on the fixing seat 10, and a second guide portion is provided on the limiting member 40, and the first guide portion and the second guide portion cooperate with each other.

[0054] Specifically, the cooperation between the first and second guide portions effectively limits the position of the position-limiting member 40 on the fixing base 10. When the positioning fixture includes the first and second snap portions, they also serve to guide positioning and simplify alignment during the alignment process. Furthermore, the first and second guide portions reduce the gap between the position-limiting member 40 and the fixing base 10, thereby improving the assembly precision and consistency of the positioning fixture. Furthermore, the guiding mechanism between the first and second guide portions also reduces any shaking of the positioning fixture during use, improving the overall stability of the positioning fixture.

[0055] According to the positioning fixture of the embodiment of the present application, the drive assembly 30 includes a cylinder, the output end of which is drivingly connected to the probe assembly 20. Selecting the cylinder as the power source can simplify the configuration of the transmission structure of the drive assembly 30, and the cylinder has higher energy efficiency when frequently testing the test piece.

[0056] In some embodiments, the positioning tool further includes a ventilation pipe, one end of which is connected to the air outlet of the cylinder, and the other end of the ventilation pipe is used to connect to the air source, and an air pressure regulating valve is provided on the ventilation pipe.

[0057] Among them, the air pressure regulating valve can ensure the stability of the gas pressure entering the cylinder, thereby ensuring the consistent performance of the positioning tooling during operation and reducing the impact of air pressure fluctuations; stable air pressure can improve the accuracy of positioning and ensure that the probe assembly 20 can meet higher precision requirements during the detection of the workpiece; reasonable air pressure control can also improve the response speed of the cylinder, thereby improving the overall operating efficiency of the positioning tooling and reducing the chance of failure; in addition, the air pressure regulating valve can also prevent excessive air pressure from damaging the positioning tooling and improve the safety of the positioning tooling; in addition, the air pressure regulating valve can also adjust the air pressure and adjust the pressure according to the different sizes and shapes of the workpieces to be tested, thereby further improving the versatility of the positioning tooling.

[0058] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an", and "" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain", and "have" are inclusive and therefore specify the presence of the stated features, steps, operations, elements, and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0059] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0060] The above are merely specific embodiments of the present invention, intended to enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A positioning tool, characterized in that: include: A fixing seat, one end of which is provided with a limiting groove for fixing the piece to be tested; A probe assembly is provided at the other end of the fixing base and is movable to abut against the electrical end of the device to be tested; A drive assembly is mechanically connected to the probe assembly to drive the probe assembly to move along a first direction toward or away from the limit groove, and the probe assembly is used to be electrically connected to the instrument assembly to feed back the open circuit voltage of the device under test.

2. The positioning tool according to claim 1, characterized in that: The electrical end of the test piece includes a first extreme end and a second extreme end, the probe assembly includes a first probe and a second probe spaced apart along a second direction, the first probe is used to electrically abut against the first extreme end, and the second probe is used to electrically abut against the second extreme end, the driving assembly includes a driving part and a transmission member connected to the output end of the driving part, the transmission member is movably connected to the first probe and the second probe at the same time, and a spring is sandwiched between the transmission member and the first probe and between the transmission member and the second probe, wherein the second direction is perpendicular to the first direction.

3. The positioning tool according to claim 2, characterized in that: The first probe can be moved along the second direction toward or away from the second probe to a certain position and then fixed.

4. The positioning tool according to claim 3, characterized in that: A slide rail is provided on the transmission member, and the probe assembly further includes a sliding member and a locking member. The sliding member is movably clamped in the slide rail, and the locking member can unlock or lock the sliding member. The sliding member is movably connected to the first probe and the spring is sandwiched between the two.

5. The positioning tool according to claim 3, characterized in that: It also includes a control module. A pressure sensor is provided between the transmission member and the spring connected to the second probe. The pressure sensor and the drive assembly are both electrically connected to the control module.

6. The positioning tool according to claim 2, characterized in that: The fixing seat is provided with a detachable limiting member, and the limiting groove is defined on the limiting member.

7. The positioning tool according to claim 6, characterized in that: The fixing seat is provided with a first buckle portion, and the limiting member is provided with a second buckle portion, and the first buckle portion and the second buckle portion are buckled together.

8. The positioning tool according to claim 6, characterized in that: The fixing seat is provided with a first guide portion, the limiting member is provided with a second guide portion, and the first guide portion and the second guide portion cooperate with each other.

9. The positioning tool according to any one of claims 1 to 8, characterized in that: The driving assembly includes a cylinder, and an output end of the cylinder is drivingly connected to the probe assembly.

10. The positioning tool according to claim 9, characterized in that: It also includes a ventilation pipe, one end of which is connected to the air delivery port of the cylinder, and the other end of which is used to be connected to the air source, and an air pressure regulating valve is provided on the ventilation pipe.

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