A simple device for measuring the lap resistance and a manufacturing method thereof

Abstract

The application relates to the technical field of lap joint resistance detection, and discloses a simple device for measuring lap joint resistance and a manufacturing method thereof. The simple device for measuring lap joint resistance and the manufacturing method thereof comprise a base, the upper surface of the base is fixedly installed with a backing plate, the upper surface of the base is fixedly installed with a supporting plate, the top inner wall of the supporting plate is fixedly installed with a driving motor, the output end of the driving motor is fixedly installed with the top end of an adjusting screw rod, and the inside of the fixed plate is provided with a stabilizing assembly. The simple device for measuring lap joint resistance and the manufacturing method thereof can avoid the offset influence on the test probe when the contact is pressed, the stabilizing assembly is arranged, the transmission structure in the fixed plate is matched, the screw rod is rotated, the reset spring one and the reset spring two on the upper and lower sides of the connecting block provide stable transmission effects on the connecting block, and the sliding sleeve in the fixed plate is prevented from excessively shaking.

Description

Technical Field

[0001] This invention relates to the field of lap resistance detection technology, specifically to a simple device for measuring lap resistance and its manufacturing method. Background Technology

[0002] Many structures and components on an aircraft employ lap joint technology. Lap joint refers to electrical lap, a reliable electrical connection that provides a low-resistance path between metal structural components of an aircraft, as well as between structural components, equipment, accessories, and the basic structure. Lap joints play a crucial role in shielding protection, electrostatic discharge protection, radio frequency interference protection, lightning strike protection, and antenna protection.

[0003] Existing devices for measuring lap resistance typically involve first placing the lap resistance to be tested on a fixed pad on an operating table, then pushing the clamping handle to move the movable pressure plate downwards via the clamping rod and connecting parts, so that the test probe contacts the lap resistance, thus completing the lap resistance test.

[0004] However, in actual use, when the test probe comes into contact with the lap resistance to be tested under the action of the external transmission device, the test probe may be squeezed and displaced due to the contact force. This will prevent the test probe from effectively testing other lap resistances and reduce the effectiveness of the device. In view of this, we propose a simple device for measuring lap resistance and its manufacturing method. Summary of the Invention

[0005] The purpose of this invention is to provide a simple device for measuring lap resistance and a method for manufacturing the same, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a simple device for measuring overlap resistance, comprising a base, a pad fixedly mounted on the upper surface of the base, a support plate fixedly mounted on the upper surface of the base, a drive motor fixedly mounted on the inner top wall of the support plate, the top end of an adjusting screw fixedly mounted on the output end of the drive motor, a threaded slider threadedly connected to the outer wall of the adjusting screw, a fixing plate fixedly mounted on the side wall of the threaded slider, a sliding sleeve slidably mounted on the inner wall of the fixing plate, a test probe engaging the inner wall of the sliding sleeve, and a stabilizing component disposed inside the fixing plate, the stabilizing component comprising:

[0007] A connecting block is fixedly installed on the side wall of the sliding sleeve. The bottom end of a telescopic rod is fixedly connected to the upper surface of the connecting block. The top end of the telescopic rod is fixedly connected to the top inner wall of the fixing plate. The bottom end of a return spring is fixedly connected to the upper surface of the connecting block. The top end of the return spring is fixedly connected to the top inner wall of the fixing plate.

[0008] A spiral rod is rotatably mounted on the bottom inner wall of the fixed plate. The spiral rod passes through a sprocket one and is fixedly connected to the spiral rod. The sprocket one is connected to a sprocket two via a chain. The sprocket two is coaxially fixedly connected to a driven bevel gear.

[0009] A take-up roller is rotatably mounted on the inner wall of the fixed plate. The take-up roller has a drive bevel gear passing through it and is fixedly connected to the take-up roller. The end of a worm spring is fixedly connected to the inner wall of the fixed plate. The other end of the worm spring is fixedly connected to the arc-shaped outer wall of the take-up roller. A pull rope is wound on the arc-shaped outer wall of the take-up roller.

[0010] A threaded sleeve is provided on the outer wall of the spiral rod. The bottom end of a telescopic rod is fixedly connected to the upper surface of the threaded sleeve. The top end of the telescopic rod is fixedly connected to the lower surface of the connecting block. The bottom end of a return spring is fixedly connected to the upper surface of the threaded sleeve. The top end of the return spring is fixedly connected to the lower surface of the connecting block. A guide rod is fixedly installed on the bottom inner wall of the fixing plate.

[0011] Preferably, the outer surface of the threaded slider is square, and the inner surface of the support plate is provided with a groove that matches the outer surface of the threaded slider.

[0012] Preferably, the inner wall of the fixing plate is provided with a limiting groove that matches the outer diameter of the sliding sleeve.

[0013] Preferably, the number of connecting blocks is set to two sets, and the two sets of connecting blocks are symmetrically arranged with the central axis of the sliding sleeve as the axis of symmetry.

[0014] Preferably, the threaded sleeve has a circular through hole that matches the outer diameter of the guide rod, and the guide rod passes through the circular through hole and is slidably connected to the threaded sleeve.

[0015] Preferably, the interior of the telescopic rod two is hollow, and the diameter of the internal cavity of the telescopic rod two is larger than the outer diameter of the screw rod.

[0016] Preferably, the lower surface of the fixing plate is provided with an auxiliary stabilizing component, which includes a threaded sleeve II. The outer wall of the spiral rod is threadedly connected to the threaded sleeve II. The top end of the guide rod II is fixedly installed on the lower surface of the fixing plate. The outer wall of the threaded sleeve II is hinged to the end of the connecting rod. The bottom end of the connecting rod is hinged to an insulating contact block. The top end of the elastic element is hinged to the lower surface of the fixing plate. The bottom end of the elastic element is fixedly connected to the top end of the hinge rod. The bottom end of the hinge rod is hinged to the inner wall of the connecting rod.

[0017] Preferably, the inner wall of the threaded sleeve is provided with a circular hole that matches the outer diameter of the guide rod, and the guide rod passes through the circular hole and is slidably connected to the threaded sleeve.

[0018] A method for manufacturing a simple device for measuring lap resistance specifically includes the following steps:

[0019] S1. First, place the lap resistor to be tested on the pad;

[0020] S2. Adjust the clamping blocks on the side wall of the pad to clamp and position it;

[0021] S3. Start the drive motor to control the fixed plate to move downward so that the test probe comes into contact with the lap resistance to be tested, so as to perform the lap resistance measurement operation.

[0022] Compared with the prior art, the present invention provides a simple device for measuring lap resistance and its manufacturing method, which has the following beneficial effects:

[0023] 1. The simple device for measuring lap resistance and its manufacturing method, in order to avoid the test probe being deflected during tight contact, is equipped with a stabilizing component, which works in conjunction with the transmission structure inside the fixed plate to make the screw rotate. This allows the return springs 1 and 2 on the upper and lower sides of the connecting block to provide a stable transmission effect on the connecting block, so as to avoid excessive shaking of the sliding sleeve inside the fixed plate.

[0024] 2. The simple device for measuring lap resistance and its manufacturing method, through the internal reverse-threaded sleeve one and sleeve two, can keep the reset spring one and reset spring two on the upper and lower sides of the connecting block stable, while providing protection for the test probe and avoiding excessive compression that could damage the bottom lap resistance to be tested.

[0025] 3. The simplified device for measuring lap resistance and its manufacturing method, in order to ensure the stability of the test probe, is equipped with an auxiliary stabilizing component. With the rotation of the screw rod, the hinge rod drives the connecting rod and the insulating contact block to fit tightly against the arc-shaped outer wall of the test probe under the elastic force of the elastic element, thereby effectively ensuring the stability of the test probe during operation. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0027] Figure 2 This is a schematic cross-sectional view of the present invention;

[0028] Figure 3 For the present invention Figure 2 A magnified schematic diagram of a portion of region A in the middle;

[0029] Figure 4 For the present invention Figure 3 A magnified schematic diagram of a portion of region B in the middle section;

[0030] Figure 5 This is a top view of the winding roller structure of the present invention.

[0031] In the diagram: 1. Base; 2. Pad; 3. Support plate; 4. Drive motor; 5. Adjusting screw; 6. Threaded slider; 7. Fixing plate; 8. Sliding sleeve; 9. Test probe; 10. Stabilizing component; 101. Connecting block; 102. Telescopic rod one; 103. Return spring one; 104. Helical rod; 105. Sprocket one; 106. Chain; 107. Sprocket two; 108. Driven bevel gear; 109. Take-up roller; 1010. Driving bevel gear; 1011. Worm spring; 1012. Pull rope; 1013. Threaded sleeve one; 1014. Telescopic rod two; 1015. Return spring two; 1016. Guide rod one; 11. Auxiliary stabilizing component; 111. Threaded sleeve two; 112. Guide rod two; 113. Connecting rod; 114. Insulating contact block; 115. Elastic element; 116. Hinge rod. Detailed Implementation

[0032] like Figure 1-5As shown, the present invention provides a technical solution: a simple device for measuring lap resistance and its manufacturing method, comprising a base 1, a pad 2 fixedly mounted on the upper surface of the base 1, a support plate 3 fixedly mounted on the upper surface of the base 1, a drive motor 4 fixedly mounted on the inner top wall of the support plate 3, an adjusting screw 5 fixedly mounted at the output end of the drive motor 4, a threaded slider 6 threadedly connected to the outer wall of the adjusting screw 5, a fixing plate 7 fixedly mounted on the side wall of the threaded slider 6, a sliding sleeve 8 slidably mounted on the inner wall of the fixing plate 7, and a test probe 9 snapped into the inner wall of the sliding sleeve 8. The plate 7 has a stabilizing component 10 inside, which includes a connecting block 101. The connecting block 101 is fixedly installed on the side wall of the sliding sleeve 8. The bottom end of the telescopic rod 102 is fixedly connected to the upper surface of the connecting block 101. The top end of the telescopic rod 102 is fixedly connected to the top inner wall of the fixed plate 7. The bottom end of the return spring 103 is fixedly connected to the upper surface of the connecting block 101. The top end of the return spring 103 is fixedly connected to the top inner wall of the fixed plate 7. A helical rod 104 is rotatably installed on the bottom inner wall of the fixed plate 7. The helical rod 104 passes through... A first sprocket 105 is fixedly connected to a screw rod 104. The first sprocket 105 is connected to a second sprocket 107 via a chain 106. A driven bevel gear 108 is coaxially fixedly connected to the second sprocket 107. A take-up roller 109 is rotatably mounted on the inner wall of the fixed plate 7. A driving bevel gear 1010 passes through the take-up roller 109, and the driving bevel gear 1010 is fixedly connected to the take-up roller 109. The end of a worm spring 1011 is fixedly connected to the inner wall of the fixed plate 7, and the other end of the worm spring 1011 is fixedly connected to the arc-shaped outer surface of the take-up roller 109. On the wall, a pull rope 1012 is wound around the arc-shaped outer wall of the take-up roller 109. A threaded sleeve 1013 is threadedly connected to the outer wall of the spiral rod 104. The bottom end of the telescopic rod 1014 is fixedly connected to the upper surface of the threaded sleeve 1013. The top end of the telescopic rod 1014 is fixedly connected to the lower surface of the connecting block 101. The bottom end of the reset spring 1015 is fixedly connected to the upper surface of the threaded sleeve 1013. The top end of the reset spring 1015 is fixedly connected to the lower surface of the connecting block 101. A guide rod 1016 is fixedly installed on the bottom inner wall of the fixing plate 7.

[0033] In one embodiment of the present invention, the pad 2 is disposed above the base 1, and the side wall of the pad 2 is provided with a clamping block to position and restrict the lap resistance to be tested, so as to facilitate the device to perform lap resistance measurement. In addition, the bottom end of the adjusting screw 5 is rotatably mounted on the bottom inner wall of the support plate 3. The outer surface of the threaded slider 6 is square, and the inner surface of the support plate 3 is provided with a groove that matches the outer surface of the threaded slider 6. This allows the threaded slider 6 to move only vertically along the inner wall of the support plate 3 when the adjusting screw 5 rotates, and it cannot rotate with the rotation of the adjusting screw 5. At the same time, the side wall of the support plate 3 is provided with a width that connects the threaded slider 6 and the fixing plate 7. A rectangular groove with a width matching the joint is provided so that the fixing plate 7 can only move vertically along the outer wall of the support plate 3. Furthermore, a limiting groove with a diameter matching the outer diameter of the sliding sleeve 8 is provided on the inner wall of the fixing plate 7 so that the sliding sleeve 8 can only move vertically along the inner wall of the fixing plate 7. In addition, two sets of connecting blocks 101 are provided, and the two sets of connecting blocks 101 are symmetrically arranged with the central axis of the sliding sleeve 8 as the axis of symmetry. At the same time, the return spring 103 is sleeved on the outside of the telescopic rod 102 so that the telescopic rod 102 can guide and restrict the deformation direction of the return spring 103, thereby making the return spring 103 deform only in the vertical direction.

[0034] In an embodiment of the present invention, one end of the pull rope 1012 is fixedly connected to the lower surface of the connecting block 101, and the other end of the pull rope 1012 is adhered to the arc-shaped outer wall of the take-up roller 109. Simultaneously, the middle portion of the pull rope 1012 is wound around the arc-shaped outer wall of the take-up roller 109. Meanwhile, the driving bevel gear 1010 and the driven bevel gear 108 mesh and transmit power, so that when the take-up roller 109 rotates, it cooperates with the driving bevel gear 1010 to drive the driven bevel gear 108 to rotate. This, combined with the transmission of sprocket 107, chain 106, and sprocket 105, drives the screw rod 104 to rotate. In one step, the threaded sleeve 1013 has a circular through hole that matches the outer diameter of the guide rod 1016. The guide rod 1016 slides through this circular through hole and is slidably connected to the threaded sleeve 1013, allowing the guide rod 1016 to guide and limit the threaded sleeve 1013. Meanwhile, the telescopic rod 1014 is hollow, and the diameter of its internal cavity is larger than the outer diameter of the screw rod 104. This prevents interference between the screw rod 104 and the telescopic rod 1014, thus ensuring the relative stability of the device's operation.

[0035] In addition, to ensure the stability of the test probe 9, an auxiliary stabilizing component 11 is provided on the lower surface of the fixing plate 7. The auxiliary stabilizing component 11 includes a threaded sleeve 111. The outer wall of the spiral rod 104 is threadedly connected to the threaded sleeve 111. The top end of the guide rod 112 is fixedly installed on the lower surface of the fixing plate 7. The outer wall of the threaded sleeve 111 is hinged to the end of the connecting rod 113. The bottom end of the connecting rod 113 is hinged to the insulating contact block 114. The top end of the elastic element 115 is hinged to the lower surface of the fixing plate 7. The bottom end of the elastic element 115 is fixedly connected to the top end of the hinge rod 116. The bottom end of the hinge rod 116 is hinged to the inner wall of the connecting rod 113.

[0036] In an embodiment of the present invention, the internal thread of the threaded sleeve 111 is configured to be opposite in direction to the internal thread of the threaded sleeve 1013, so that when the screw rod 104 rotates, the movement directions of the threaded sleeve 1013 and the threaded sleeve 111 are opposite. Simultaneously, the inner wall of the threaded sleeve 111 has a circular hole that matches the outer diameter of the guide rod 112, and the guide rod 112 passes through this circular hole and is slidably connected to the threaded sleeve 111. This allows the guide rod 112 to guide and restrict the threaded sleeve 111, ensuring that when the screw rod 104 rotates, the threaded sleeve 111 can only move vertically along the outer wall of the guide rod 112. Furthermore, the sidewall of the insulating contact block 114 is configured as an arc surface that matches the arc-shaped outer wall of the test probe 9, so that the insulating contact block 114 can fit better against the arc-shaped outer wall of the test probe 9, thereby enabling the test probe 9 to maintain better stability. In addition, the elastic element 115 is composed of a telescopic element with freely extendable length and a spring, so that the elastic element 115 can always maintain good reset ability when compressed or stretched, thereby enabling the elastic element 115 to work with the hinge rod 116 to better tighten the connecting rod 113, thereby enabling the insulating contact block 114 to fit more tightly against the arc-shaped outer wall of the test probe 9.

[0037] In this invention, during use, the lap resistor to be tested is placed on the pad 2, and clamped and positioned by the clamping blocks on the side wall of the pad 2. Then, the drive motor 4 is started, and the adjusting screw 5 is used to make the threaded slider 6 drive the fixing plate 7 to move vertically downward along the side wall of the support plate 3, thereby making the test probe 9 contact the lap resistor to be tested, thus completing the lap resistor test. In addition, in order to avoid the test probe 9 from shifting during the tight contact, a stabilizing component 10 is provided, which, in conjunction with the transmission structure inside the fixing plate 7, makes the screw rod 104 rotate, thereby causing the connecting block 101 to rotate on both sides. The reset spring 103 and reset spring 1015 provide a stable transmission effect to the connecting block 101 to prevent the sliding sleeve 8 from shaking excessively inside the fixed plate 7. While protecting the test probe 9, they also prevent excessive compression that could damage the bottom lap resistance to be tested. At the same time, to ensure the stability of the test probe 9, an auxiliary stabilizing component 11 is provided. In conjunction with the rotation of the screw rod 104, the elastic force of the elastic element 115 causes the hinge rod 116 to drive the connecting rod 113 and the insulating contact block 114 to fit tightly against the arc-shaped outer wall of the test probe 9, thereby effectively ensuring the stability of the test probe 9 during operation.

[0038] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A simple device for measuring lap resistance, comprising a base (1), a pad (2) fixedly mounted on the upper surface of the base (1), a support plate (3) fixedly mounted on the upper surface of the base (1), a drive motor (4) fixedly mounted on the inner top wall of the support plate (3), the top end of an adjusting screw (5) fixedly mounted on the output end of the drive motor (4), a threaded slider (6) threadedly connected to the outer wall of the adjusting screw (5), a fixing plate (7) fixedly mounted on the side wall of the threaded slider (6), a sliding sleeve (8) slidably mounted on the inner wall of the fixing plate (7), and a test probe (9) snapped into the inner wall of the sliding sleeve (8), characterized in that: The fixing plate (7) is internally provided with a stabilizing component (10), the stabilizing component (10) comprising: Connecting block (101), the side wall of the sliding sleeve (8) is fixedly installed with connecting block (101), the upper surface of the connecting block (101) is fixedly connected with the bottom end of telescopic rod one (102), the top end of telescopic rod one (102) is fixedly connected to the top inner wall of the fixing plate (7), the upper surface of the connecting block (101) is fixedly connected with the bottom end of reset spring one (103), the top end of reset spring one (103) is fixedly connected to the top inner wall of the fixing plate (7); A helical rod (104) is rotatably mounted on the bottom inner wall of the fixed plate (7). The helical rod (104) passes through a sprocket (105), and the sprocket (105) is fixedly connected to the helical rod (104). The sprocket (105) is connected to the sprocket (2) (107) via a chain (106). The sprocket (2) (107) is coaxially fixedly connected to a driven bevel gear (108). A take-up roller (109) is rotatably mounted on the inner wall of the fixed plate (7). The take-up roller (109) is penetrated by a drive bevel gear (1010), and the drive bevel gear (1010) is fixedly connected to the take-up roller (109). The end of a worm spring (1011) is fixedly connected to the inner wall of the fixed plate (7). The other end of the worm spring (1011) is fixedly connected to the arc-shaped outer wall of the take-up roller (109). A pull rope (1012) is wound around the arc-shaped outer wall of the take-up roller (109). Threaded sleeve one (1013), the outer wall of the spiral rod (104) is threadedly connected to threaded sleeve one (1013), the upper surface of threaded sleeve one (1013) is fixedly connected to the bottom end of telescopic rod two (1014), the top end of telescopic rod two (1014) is fixedly connected to the lower surface of connecting block (101), the upper surface of threaded sleeve one (1013) is fixedly connected to the bottom end of reset spring two (1015), the top end of reset spring two (1015) is fixedly connected to the lower surface of connecting block (101), and guide rod one (1016) is fixedly installed on the bottom inner wall of fixing plate (7); The lower surface of the fixed plate (7) is provided with an auxiliary stabilizing component (11). The auxiliary stabilizing component (11) includes a threaded sleeve (111). The outer wall of the spiral rod (104) is threadedly connected to the threaded sleeve (111). The top end of the guide rod (112) is fixedly installed on the lower surface of the fixed plate (7). The outer wall of the threaded sleeve (111) is hinged to the end of the connecting rod (113). The bottom end of the connecting rod (113) is hinged to an insulating contact block (114). The top end of the elastic element (115) is hinged to the lower surface of the fixed plate (7). The bottom end of the elastic element (115) is fixedly connected to the top end of the hinge rod (116). The bottom end of the hinge rod (116) is hinged to the inner wall of the connecting rod (113). The inner wall of the threaded sleeve (111) is provided with a circular hole that matches the outer diameter of the guide rod (112), and the guide rod (112) passes through the circular hole and is slidably connected to the threaded sleeve (111).

2. The simple device for measuring lap resistance according to claim 1, characterized in that: The outer surface of the threaded slider (6) is square, and the inner surface of the support plate (3) is provided with a groove that matches the outer surface of the threaded slider (6).

3. The simple device for measuring lap resistance according to claim 1, characterized in that: The inner wall of the fixing plate (7) is provided with a limiting groove that matches the outer diameter of the sliding sleeve (8).

4. A simple device for measuring lap resistance according to claim 1, characterized in that: The number of connecting blocks (101) is set to two sets, and the two sets of connecting blocks (101) are symmetrically arranged with the central axis of the sliding sleeve (8) as the axis of symmetry.

5. A simple device for measuring lap resistance according to claim 1, characterized in that: The threaded sleeve (1013) has a circular through hole that matches the outer diameter of the guide rod (1016), and the guide rod (1016) slides through the circular through hole and is slidably connected to the threaded sleeve (1013).

6. A simple device for measuring lap resistance according to claim 1, characterized in that: The telescopic rod 2 (1014) is hollow inside, and the diameter of the internal cavity of the telescopic rod 2 (1014) is larger than the outer diameter of the screw rod (104).

7. A method for manufacturing a simple device for measuring lap resistance according to any one of claims 1-6, characterized in that: Specifically, the following steps are included: S1. First, place the lap resistor to be tested on the pad (2); S2. The clamping blocks set on the side wall of the adjusting pad (2) are used to clamp and position it; S3. Start the drive motor (4) and control the fixed plate (7) to move downward so that the test probe (9) comes into contact with the lap resistance to be tested, so as to perform the lap resistance measurement operation.

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