Load torque measuring device and measuring method

Abstract

The application provides a load torque measuring device and a measuring method. The load torque measuring device comprises a base, a clamping component arranged on the base and used for clamping a product to be measured, and a measuring unit comprising a test connector having one end connected to a plug-in end of the product to be measured, a connecting rod connected to the other end of the test connector, and a weight arranged on the connecting rod and capable of moving close to or away from the test connector. The measuring device of the application has a simple structure and can quickly measure the load torque of different products to be measured.

Description

Technical Field

[0001] This invention relates to a magnetic wire testing device, and more particularly to a load torque measuring device and method. Background Technology

[0002] In existing electronic devices, new fast charging data cables / charging cables use magnetic attraction to connect to electronic devices, and can be automatically attracted or detached under external force.

[0003] For magnetic wires, existing technologies use torque testing equipment to test their load torque. However, existing torque testing equipment has disadvantages such as large size, heavy weight, difficulty in movement, high equipment price, complex operation, high maintenance costs, and easy damage if the product falls off.

[0004] Therefore, how to provide a measuring device that is simple in structure and easy to operate is one of the problems that needs to be solved. Summary of the Invention

[0005] The embodiments of the present invention provide a load torque measuring device and method, which is simple in structure, easy to operate, applicable to the load torque measurement of most magnetic products, and can prevent the product from being overloaded and falling off and damaged.

[0006] A load torque measuring device according to one embodiment of the present invention includes a base; a clamping component disposed on the base for clamping a product under test; and a measuring unit including: a test connector, one end of which is connected to the plug end of the product under test; a connecting rod connected to the other end of the test connector; and a weight disposed on the connecting rod, wherein the weight can move closer to or further away from the test connector.

[0007] In the aforementioned load torque measuring device, the weights comprise a plurality of weights, and the weights of the plurality of weights may be the same or different from each other.

[0008] In the aforementioned load torque measuring device, the connecting rod is formed with a threaded structure, and the weight is threadedly connected to the connecting rod.

[0009] The aforementioned load torque measuring device further includes: a support plate connected to the base, the support plate being located directly below the measuring unit.

[0010] In the aforementioned load torque measuring device, a slot is formed on the support plate, the width of which is smaller than the width of the test connector.

[0011] In the aforementioned load torque measuring device, the base includes a base plate and a sliding block connected to one side of the base plate. The clamping component is disposed on the top of the sliding block. The sliding block is formed as a wedge-shaped structure with a first inclined surface. The support plate has a second inclined surface on the side near the sliding block. The first inclined surface and the second inclined surface are connected in a cooperative manner.

[0012] In the aforementioned load torque measuring device, the first inclined surface is provided with a groove, the support plate is provided with a slider that cooperates with the groove, and the support plate can slide along the plane direction where the first inclined surface is located; the bottom wall of the groove is provided with at least one ball-head plunger that can extend or retract relative to the groove, the slider is provided with a slot, and the ball-head plunger cooperates with the slot.

[0013] The aforementioned load torque measuring device further includes: a standard calibration block, which is installed on the clamping component, and the plug end of the standard calibration block is connected to the test connector.

[0014] A load torque measurement method according to one embodiment of the present invention uses the load torque measurement device as described above, comprising: mounting the product under test on a clamping component with the plug end of the product under test facing the measuring unit; selecting at least one weight and attaching the at least one weight to the connecting rod of the measuring unit; connecting the test connector of the measuring unit to the plug end of the product under test; moving the at least one weight away from the product under test until the measuring unit detaches from the plug end of the product under test; and calculating the load torque of the product under test.

[0015] The above method further includes: performing calibration before testing; wherein the calibration step includes: providing a standard calibration block, installing the standard calibration block on the clamping component, and aligning the plug end of the standard calibration block with the measuring unit; connecting the plug end of the standard calibration block to the test connector; adjusting the weight so that the weight moves away from the standard calibration block to the end of the connecting rod; and verifying the calibration result.

[0016] The load torque measuring device and method of the present invention can easily change the weight of the weight, adjust the extension length of the connecting rod, and change the magnetic and non-magnetic properties of the clamping component to measure the load torque of different products under test. It has a simple structure, is easy to operate, and can be applied to the load torque measurement of most magnetic products. Moreover, when the weight is moved to the position of maximum load torque, the plug end of the product under test can be easily separated from the test connector of the measuring unit, thereby preventing the product under test from being overloaded and falling off and being damaged.

[0017] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Attached Figure Description

[0018] Figure 1 This is a side view schematic diagram of a measuring device according to an embodiment of the present invention.

[0019] Figure 2 This is a front view schematic diagram of a measuring device according to an embodiment of the present invention.

[0020] Figure 3 This is a schematic flowchart of a measurement method according to an embodiment of the present invention.

[0021] In the attached figures, the following labels are used:

[0022] 100: Measuring device

[0023] 101: Base

[0024] 1011: Base Plate

[0025] 1012: Sliding block

[0026] 1013: Slide

[0027] 1014: Ball-head plunger

[0028] 102: Clamping component

[0029] 103: Measurement Unit

[0030] 1031: Test connector

[0031] 1032: Connecting rod

[0032] 1033: Weights

[0033] 104: Support section

[0034] 1041: Grooving

[0035] 200: Measurement Method

[0036] S201-S205: Steps

[0037] SI: First inclined plane

[0038] S2: Second inclined plane

[0039] L: Spacing Detailed Implementation

[0040] The structural and working principles of the present invention will be described in detail below with reference to the accompanying drawings:

[0041] Figure 1 This is a side view schematic diagram of a measuring device according to an embodiment of the present invention. Figure 2 This is a front view schematic diagram of a measuring device according to an embodiment of the present invention. Figures 1 to 2 As shown, the speaker assembly 100 of the present invention includes a base 101, a clamping member 102, and a measuring unit 103. The clamping member 102 is disposed on the base 101 and is used to clamp the product under test, i.e., to fix the product under test to the clamping member 102, with the plug end of the product under test protruding outward from the clamping member 102. The measuring unit 103 includes a test connector 1031, a connecting rod 1032, and a weight 1033. One end of the test connector 1031 is connected to the plug end of the product under test, and the test connector 1031 can be magnetically attracted to the plug end of the product under test. The other end of the test connector 1031 is provided with the connecting rod 1032, one end of the connecting rod 1032 is connected to the test connector 1031, and the other end extends outward along the test connector 1031. The weight 1033 is disposed on the connecting rod 1032, and the weight 1033 can move closer to / away from the test connector 1031 along the connecting rod 1032.

[0042] In this invention, to facilitate testing different products, the weight 1033 may include multiple weights with the same or different counterweights, with different counterweights selected according to the type of product being tested. Furthermore, the weight 1033 can be directly engaged with the connecting rod 1032, or an external thread structure can be provided on the outer surface of the connecting rod 1032, with an internal thread structure in the middle of the weight 1033 that mates with the external thread structure, allowing the weight 1033 to move along the connecting rod 1032 via the thread structure. Of course, the weight 1033 can also be other counterweight components, or connected to the connecting rod 1032 in other ways; this invention is not limited to these limitations.

[0043] To prevent damage to the measuring unit 103 from falling to the ground when it detaches, the measuring device 100 of the present invention further includes a support plate 104, which is connected to the base 101 and is positioned directly below the measuring unit 103. A slot 1041 is formed on the support plate 104, the width of which is smaller than the width of the test connector 1031. Therefore, when the measuring unit 103 detaches, it is supported by the support plate 104 because the width of the slot 1041 in the support plate 104 is smaller than the width of the test connector 1031, thus preventing the measuring unit 103 from falling and being damaged. Furthermore, the width of the slot 1041 in this invention can also be smaller than the diameter of the weight 1033, so that when the measuring unit 103 falls off, both the test connector 1031 of the measuring unit 103 and the weight 1033 are received by the slot 1041, preventing rotation and better protecting the measuring unit 103. However, this invention is not limited thereto.

[0044] For example Figure 2As shown, in this invention, the base 101 further includes a base plate 1011 and a sliding block 1012 connected to one side of the base plate 1011. A clamping member 102 is disposed on the top of the sliding block 1012. The sliding block 1012 is formed into a wedge-shaped structure with a first inclined surface S1. A second inclined surface S2 is formed on the side of the support plate 104 near the sliding block 1012. The first inclined surface S1 and the second inclined surface S2 are engaged and connected.

[0045] A groove 1013 is provided on the first inclined surface of the sliding block 1012. A slider 1042 that cooperates with the groove 1013 is provided on the side of the support plate 104 near the sliding block 1012. With the cooperation of the groove 1013 and the slider 1042, the support plate 104 can slide up and down along the plane where the first inclined surface S1 is located. At least one ball plunger 1014 that can extend or retract relative to the groove 1013 is provided on the bottom wall of the groove 1013. A slot is provided on the slider 1042, and the ball plunger 1014 cooperates with the slot. When the slider 1042 moves to the position of the ball plunger 1014, the ball plunger 1014 extends and is locked in the slot of the slider 1042, which can fix the position of the support plate 104. When the position of the support plate 104 needs to be adjusted, the slider 1042 of the support plate 104 is moved. Under the action of the slider 1042, the ball plunger 1014 retracts, and the support plate 104 slides further along the slide groove 1013 until the slider 1042 moves back to the position of the ball plunger 1014, and the support plate 104 is fixed again. Of course, other sliding mechanisms can also be used to make the support plate 104 move up and down along the slider 1012, and the present invention is not limited thereto.

[0046] To determine whether the measuring device is functioning correctly, the measuring device 100 of the present invention may further include a standard calibration block. The standard calibration block is used as a standard product to be tested, with one end disposed on the clamping component 102 and the other end having a plug-in end that connects to the test connector 1031. Specifically, taking the total weight W = 100g of the measuring unit 103 and the limit length L = 100mm of the connecting rod 1032 as an example, the load torque F is calculated as: F = W * L. The load torque F measurement range of the measuring device 100 of the present invention is 0 to 98 N * mm. Moving the weight 1033 outward along the connecting rod 1032, for a normally functioning measuring device 100, when the weight 1033 moves to the limit length position of the connecting rod 1032, the measuring unit 103 detaches. However, if the measuring unit 103 detaches before the weight 1033 reaches the limit length position of the connecting rod 1032, it indicates that the test connector 1031 of the measuring unit 103 is damaged, such as wear on the test connector 1031, resulting in a decrease in the load torque between the test connector 1031 and the standard calibration block. Alternatively, if the measuring unit 103 does not detach even after the weight 1033 has reached the limit length position of the connecting rod 1032, it indicates a problem with the connection between the test connector 1031 of the measuring unit 103 and the standard calibration block. Both of these situations indicate that the measuring device 100 is not working normally. Before testing, testing with the standard calibration block can easily and conveniently test whether the measuring device 100 of the present invention is in normal working condition. If either of the above two situations occurs, the measuring device 100 needs to be adjusted and calibrated to ensure it is working normally.

[0047] Figure 3 This is a schematic flowchart of a measurement method according to an embodiment of the present invention. (In conjunction with...) Figures 1-3 As shown, the measurement method of the present invention includes the following steps:

[0048] S201, Install the product to be tested.

[0049] The product under test is mounted on the clamping component 102, with the plug end of the product under test facing the measuring unit 103.

[0050] S202, Select the weight and attach it to the connecting rod.

[0051] Depending on the type of product to be tested, select a suitable weight 1033 from multiple weights 1033, attach the weight 1033 to the connecting rod 1032 of the measuring unit 103, and move the weight to the minimum limit position of the connecting rod 1032, that is, the position closest to the test connector 1031.

[0052] S203, connect to the measurement unit.

[0053] Connect the test connector 1031 of the measuring unit 103 to the plug-in terminal of the product under test.

[0054] S204, move the weights until the measuring unit falls off.

[0055] Move the weight 1033 outward along the connecting rod 1032, so that the weight 1033 moves away from the product to be tested, until the measuring unit 103 falls off the plug end of the product to be tested.

[0056] S205, calculate the load torque.

[0057] After the measuring unit 1033 detaches, the length L between the weight 1033 and the test connector 1031 is measured, and the load torque of the product under test is calculated according to the formula F = W * L. Where W is the total amount of the measuring units.

[0058] To ensure measurement results, the measuring device 100 needs to be calibrated before testing. In this invention, the calibration steps include:

[0059] A standard calibration block is provided, which is installed on the clamping component 102 with the plug end of the standard calibration block facing the measuring unit 103;

[0060] Connect the plug end of the standard calibration block to the test connector 1031;

[0061] Adjust weight 1033 so that it moves away from the standard calibration block;

[0062] The working state of the measuring device is determined by whether the weight 1033 falls off when it reaches the limit length position of the connecting rod 1032, or by the position of the weight 1033 on the connecting rod 1032 when the measuring unit 103 falls off. Specifically, for a normally functioning measuring device 100, the measuring unit 103 falls off when the weight 1033 reaches the limit length position of the connecting rod 1032. However, if the measuring unit 103 falls off before the weight 1033 reaches the limit length position of the connecting rod 1032, it indicates that the test connector 1031 of the measuring unit 103 is damaged, such as wear on the test connector 1031, resulting in a decrease in the load torque between the test connector 1031 and the standard calibration block. Alternatively, if the measuring unit 103 does not fall off even after the weight 1033 has reached the limit length position of the connecting rod 1032, it indicates a problem with the connection between the test connector 1031 and the standard calibration block. Both of these situations indicate that the measuring device 100 is not working normally. Before testing, the measuring device 100 of the present invention can be easily and conveniently tested to see if it is in normal working condition by testing with a standard calibration block. If either of the above two situations occurs, the measuring device 100 needs to be adjusted and calibrated to make it work in normal working condition.

[0063] To verify the calibration results, if the measuring device 100 is in normal working condition, the product to be tested will be measured. If the measuring device 100 is in abnormal working condition, the measuring device 100 needs to be adjusted and calibrated in order to measure the product to be tested.

[0064] Of course, after adjusting and calibrating the measuring device 100, it can be tested or calibrated again until the measuring device 100 is in normal working condition.

[0065] According to the embodiments of the present invention, the measuring device of the present invention allows for easy replacement of the weight of the weights, adjustment of the extension and retraction length of the connecting rod, and modification of the magnetic and non-magnetic properties of the clamping components to measure the load torque of different products under test. It has a simple structure, is easy to operate, is applicable to the load torque measurement of most magnetic products, and can prevent the product from being overloaded and falling off and damaged.

[0066] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A load torque measuring device, characterized in that, include Base (101); A clamping component (102) is disposed on the base (101) for clamping the product to be tested; The measuring unit (103) includes: The test connector (1031) has one end for connecting to the plug-in terminal of the product under test; The connecting rod (1032) is connected to the other end of the test connector (1031); A weight (1033) is fitted onto the connecting rod (1032), and the weight (1033) can move closer to or further away from the test connector (1031); A support plate (104) is connected to the base (101), and the support plate (104) is located directly below the measuring unit (103); A slot (1041) is formed on the support plate (104), the width of the slot (1041) being smaller than the width of the test connector (1031); The base (101) includes a base plate (1011) and a sliding block (1012) connected to one side of the base plate (1011). The clamping member (102) is disposed on the top of the sliding block (1012). The sliding block (1012) is formed as a wedge structure with a first inclined surface (S1). The support plate (104) has a second inclined surface (S2) formed on the side near the sliding block. The first inclined surface (S1) and the second inclined surface (S2) are connected in a cooperative manner. The first inclined surface is provided with a sliding groove (1013), and the support plate (104) is provided with a slider (1042) that cooperates with the sliding groove (1013). The support plate (104) can slide along the plane direction where the first inclined surface (S1) is located. At least one ball-head plunger (1014) is provided on the bottom wall of the slide groove (1013) and can extend or retract relative to the slide groove (1013). A slot is provided on the slider (1042) and the ball-head plunger (1014) cooperates with the slot.

2. The load torque measuring device as described in claim 1, characterized in that, The weights (1033) include a plurality of weights, and the weights of the plurality of weights (1033) may be the same or different from each other.

3. The load torque measuring device as described in claim 2, characterized in that, The connecting rod is formed with a threaded structure, and the weight is threadedly connected to the connecting rod.

4. The load torque measuring device as described in claim 1, characterized in that, Also includes: A standard calibration block is installed on the clamping component (102), and the plug end of the standard calibration block is connected to the test connector (1031).

5. A method for measuring load torque, characterized in that, The load torque measuring device as described in any one of claims 1 to 4 comprises: The product under test is mounted on the clamping component (102), and the plug end of the product under test is oriented toward the measuring unit (103). Select at least one weight (1033) and attach the at least one weight (1033) to the connecting rod (1032) of the measuring unit (103); Connect the test connector (1031) of the measuring unit (103) to the plug-in terminal of the product under test; Move the at least one weight (1033) away from the product under test until the measuring unit (103) falls off the plug end of the product under test; Calculate the load torque of the product under test.

6. The method as described in claim 5, characterized in that, Also includes: Perform calibration before testing; The steps involved in the correction include: A standard calibration block is provided, which is installed on the clamping component (102) with the plug end of the standard calibration block facing the measuring unit (103). Connect the plug end of the standard calibration block to the test connector (1031); Adjust the weight (1033) so that it moves away from the standard calibration block to the end of the connecting rod (1032); Verify the calibration results.

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