A structural strength detection device for electrical components

Abstract

The present invention relates to the field of strength testing, and specifically to a structural strength testing device for electrical components, comprising a testing machine body, a mounting column, a placement plate, and a striking mechanism. A pressure cone that moves up and down is provided above the testing machine body, and a center hole is provided at the center of the placement plate; the center hole and the mounting column are coaxial; the placement plate is sleeved on the upper end of the mounting column through the center hole; the placement plate is rotated around the axis of the mounting column and is installed on the mounting column through a rotating assembly; a clamping assembly is provided on the placement plate; the striking mechanism impacts the inner wall of the hinge hole of the part to be tested, thereby realizing testing of the part to be tested from the inner side of the hinge hole of the part to be tested, thereby improving the accuracy of the test results.

Description

Technical Field

[0001] The present invention relates to the field of strength detection, and in particular to a structural strength detection device for an electrical component. Background Art

[0002] Electrical components encompass a wide range of functional components. Low-voltage circuit breakers (commonly known as air switches) are a typical circuit protection device and are widely used. During the circuit breaker's opening and closing processes, resilient movable contact assemblies, such as the switch plate, operate rapidly through a pivoting mechanism. These components are subject to significant impact during rapid operation. These components are often made of engineering plastics such as glass-fiber-reinforced PBT or PA66.

[0003] In order to ensure the service life of the air switch, the hinged and rotating parts in the elastic movable contact assembly, such as the switch plate, are usually subjected to strength tests. During the opening and closing process of the air switch, the inner side of the hinge hole of the switch plate to be tested is subjected to a certain impact, which requires that the hinge hole of the switch plate to be tested must have sufficient fatigue strength and impact toughness. If the bearing strength of the hole wall of the hinge hole is insufficient, stress cracks are likely to expand under frequent operating conditions, eventually leading to failure of the pivot mechanism and causing equipment failure. However, the existing testing equipment for the strength test of the switch plate to be tested is to apply pressure from the outside of the part to be tested, and it is impossible to test the inside of the hinge hole of the part to be tested, which makes the test results inaccurate. Summary of the Invention

[0004] The present invention provides a structural strength detection device for an electrical component to solve the above-mentioned problem.

[0005] The present invention provides a structural strength detection device for an electrical component, which adopts the following technical solution: a structural strength detection device for an electrical component, comprising a detection machine body, a mounting column, a placement plate, and a striking mechanism.

[0006] A pressing cone that moves up and down is provided above the detector body; the small end of the pressing cone is set downward; a lifting assembly is provided between the pressing cone and the detector body; the lifting assembly is used to drive the pressing cone to move up and down;

[0007] The mounting column is provided below the pressing cone; the axis of the mounting column is arranged up and down, the lower end is fixed on the detector body, and the upper end is provided with a mounting slot with an opening facing upwards;

[0008] The placement plate has a center hole at its center; the center hole is coaxial with the mounting post. The placement plate is sleeved onto the upper end of the mounting post through the center hole. The placement plate is mounted on the mounting post by a rotating assembly, which rotates around the axis of the mounting post. The placement plate is equipped with a clamping assembly, which is used to clamp the part to be tested on the placement plate. The impact mechanism is used to impact the inner wall of the hinge hole of the part to be tested, enabling testing of the part from the inside of the hinge hole, thereby improving the accuracy of the test results. The spring mechanism comprises an upper ring, a lower ring, a first adjusting component, and a second adjusting component; the upper ring and the lower ring are both elastic rings; the upper ring is coaxially arranged above the lower ring; the upper ring and the center hole are coaxial; the lower ring is above the mounting groove and above the placing plate; two support plates are provided at the lower end of the lower ring; the two support plates are symmetrical front and back; the support plates are arranged up and down, the upper end and the lower ring are fixedly connected, the lower end extends into the mounting groove; the lower end of the support plate is radially movable along the upper ring and is arranged in the mounting groove; two spring plates are provided between the upper ring and the lower ring; the two spring plates are arranged symmetrically about the axis of the upper ring; the spring plate is an arc-shaped elastic plate coaxial with the upper ring, and the cross-section of the spring plate on the vertical plane passing through the axis of the upper ring is an arc-shaped concave inward of the axis of the upper ring; the upper end of the spring plate is fixedly connected to the upper ring, and the lower end is fixedly connected to the lower ring; the hinge hole of the part to be tested corresponds to the mounting slot and is placed on the placing plate, and the upper ring and the lower ring are inserted into the hinge hole; lift The descending component drives the pressure cone to move downward and insert into the upper ring and the lower ring. The conical side wall of the pressure cone abuts against the concave part of the spring piece and pushes the spring piece in the direction away from the axis of the upper ring. When the spring piece exceeds the critical deformation state, the spring piece instantly convexly deforms in the direction away from the axis of the upper ring and impacts the inner wall of the hinge hole of the part to be tested; the first adjusting component is arranged between the upper ring and the lower ring; the first adjusting component is used to adjust the spacing between the upper ring and the lower ring to adjust the curvature of the concave of the spring piece; when the spacing between the upper ring and the lower ring decreases, the curvature of the concave of the spring piece increases, so that the spring piece instantly convexly deforms to impact the inner wall of the hinge hole of the part to be tested, increasing the impact force; when the spacing between the upper ring and the lower ring increases, the curvature of the concave of the spring piece decreases, so that the spring piece instantly convexly deforms to impact the inner wall of the hinge hole of the part to be tested, reducing the impact force, thereby adjusting the appropriate elastic impact force according to different parts to be tested, and expanding the detection range. The second adjustment component is arranged between the support plate and the mounting groove; the second adjustment component is used to adjust the distance between the two support plates; when it is necessary to detect the predetermined local points on the side wall of the hinge hole of the part to be tested, the second adjustment component drives the two support plates to approach each other radially along the mounting column, so that the upper ring and the lower ring become elliptical, so that the impact of the spring clip on the inner wall of the hinge hole is adjusted from surface contact to point contact, and cooperates with the rotating component to drive the placement plate to rotate, so that the predetermined local points on the side wall of the hinge hole of the part to be tested correspond to the two ends of the long axis after the upper ring becomes elliptical, so as to detect the predetermined local points on the side wall of the hinge hole of the part to be tested.

[0009] Furthermore, the first adjusting component includes a limit column; the limit column extends up and down; the upper end of the limit column is fixedly connected to the upper ring, and the lower end is inserted into the support plate and slides up and down with the support plate; a cylinder is provided at the lower end of the limit column; the cylinder is fixed in the support plate; the piston rod of the cylinder is arranged up and down; the piston rod of the cylinder is fixedly connected to the lower end of the limit column; the cylinder drives the limit column to move up and down to adjust the distance between the upper ring and the lower ring to adjust the curvature of the concave spring piece; when the cylinder drives the limit column to move downward, the distance between the upper ring and the lower ring decreases, and the curvature of the concave spring piece increases; when the cylinder drives the limit column to move upward, the distance between the upper ring and the lower ring increases, and the curvature of the concave spring piece decreases.

[0010] Furthermore, the second adjustment component includes a partition; the partition is arranged in the mounting groove and is located below the support plate; the partition is fixed on the inner wall of the mounting groove; a gear is rotatably installed on the partition; two racks are provided on both sides of the gear; the two racks are arranged in parallel; the rack is slidably installed on the partition; a connecting seat is fixed to the upper end of the rack; a slot is provided at the upper end of the connecting seat; the support plate is plugged into the connecting seat through the slot.

[0011] Furthermore, an adjusting motor is provided under the partition; the adjusting motor is fixed in the mounting groove; and the output shaft of the adjusting motor is fixedly connected to the gear.

[0012] Furthermore, a cover plate is provided on the upper end of the mounting post; a slide groove is provided on the cover plate; the slide groove and the support plate are slidably engaged; and the cover plate is fixed to the upper end of the mounting post. The cover plate is used to prevent debris from entering the mounting groove.

[0013] Furthermore, the clamping assembly comprises multiple engaging blocks and engaging rods distributed circumferentially along the center hole. The engaging blocks are fixed to the placement plate, and the engaging rods are radially disposed along the center hole. The engaging rods and the engaging blocks are threadedly engaged. When the part to be tested is placed on the placement plate, the engaging rods are rotated to drive the engaging rods toward the part to be tested. The multiple engaging rods cooperate to clamp the part to be tested and secure it to the placement plate.

[0014] Furthermore, a turning handle is fixed to one end of the matching rod away from the central hole.

[0015] Furthermore, the rotating assembly includes a rotating drum and an installation box; the rotating drum is arranged under the placement plate and is coaxially sleeved on the installation column; the upper end of the rotating drum is fixedly connected to the placement plate, and a first gear ring is fixed to the lower end; the installation box is fixed on the detection machine body and is located under the placement plate; a vertically arranged rotating rod is rotatably installed on the installation box; a second gear ring is fixed on the rotating rod; a synchronous belt is sleeved between the first gear ring and the second gear ring; the synchronous belt and the first gear ring are meshed; the synchronous belt and the second gear ring are meshed; a rotating motor is fixed in the installation box; the output shaft of the rotating motor is fixedly connected to the rotating rod.

[0016] Furthermore, the lifting assembly includes a lifting frame; a lifting plate is slidably installed on the lifting frame; a vertically arranged screw is rotatably installed on the lifting frame; the screw and the lifting plate are threaded together; a lifting motor is fixed on the lifting frame; the output shaft of the lifting motor and the screw are fixedly connected; a connecting column is fixed at the lower end of the lifting plate; the lower end of the connecting column and the upper end of the pressure cone are threadedly connected.

[0017] The beneficial effects of the present invention are as follows: the impact mechanism impacts the inner wall of the hinge hole of the part to be tested, thereby realizing detection of the part to be tested from the inner side of the hinge hole of the part to be tested, thereby improving the accuracy of the detection result.

[0018] Furthermore, the hinge hole of the part to be tested is placed on the placement plate in the corresponding mounting groove, and the upper ring and the lower ring are inserted into the hinge hole; the lifting assembly drives the pressure cone to move downward and insert it into the upper ring and the lower ring, and the conical side wall of the pressure cone abuts against the concave part of the spring piece and pushes the spring piece in the direction away from the axis of the upper ring. When the spring piece exceeds the critical state of deformation, the spring piece instantly convexly deforms outward away from the axis of the upper ring and impacts the inner wall of the hinge hole of the part to be tested.

[0019] Furthermore, the first adjustment component is used to adjust the distance between the upper ring and the lower ring to adjust the curvature of the concave spring; when the distance between the upper ring and the lower ring decreases, the curvature of the concave spring increases, so that the spring instantaneously convexly deforms to impact the inner wall of the hinge hole of the part to be tested, and the impact force increases; when the distance between the upper ring and the lower ring increases, the curvature of the concave spring decreases, so that the spring instantaneously convexly deforms to impact the inner wall of the hinge hole of the part to be tested, and the impact force decreases, thereby realizing the adjustment of appropriate elastic impact force according to different parts to be tested, thereby expanding the scope of detection.

[0020] Furthermore, when it is necessary to detect the predetermined local points on the side wall of the hinge hole of the part to be tested, the second adjustment component drives the two support plates to approach each other radially along the mounting column, so that the upper ring and the lower ring become elliptical, so that the impact of the spring on the inner wall of the hinge hole is adjusted from surface contact to point contact, and cooperates with the rotating component to drive the placement plate to rotate, so that the predetermined local points on the side wall of the hinge hole of the part to be tested correspond to the two ends of the long axis after the upper ring becomes elliptical, so as to detect the predetermined local points on the side wall of the hinge hole of the part to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1A schematic structural diagram of an embodiment of a device for detecting structural strength of an electrical component according to the present invention;

[0023] Figure 2 A schematic diagram of a placement plate and a striking mechanism of an embodiment of a structural strength testing device for an electrical component of the present invention;

[0024] Figure 3 A front view of a placement plate and a striking mechanism of an embodiment of a structural strength detection device for an electrical component of the present invention;

[0025] Figure 4 for Figure 3 Cross-sectional view at AA in the middle;

[0026] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0027] Figure 6 for Figure 3 Cross-sectional view at the middle BB;

[0028] Figure 7 for Figure 6 Enlarged view of point D in the middle;

[0029] Figure 8 A schematic diagram of a striking mechanism of an embodiment of a structural strength detection device for an electrical component of the present invention;

[0030] Figure 9 A schematic diagram of an upper ring, a lower ring, and a spring piece of an embodiment of a structural strength detection device for an electrical component of the present invention;

[0031] Figure 10 A top view of an upper ring and a spring piece of an embodiment of a structural strength detection device for an electrical component of the present invention;

[0032] Figure 11 This is a state diagram of an embodiment of a structural strength detection device for an electrical component of the present invention when the upper ring and the lower ring become ellipses;

[0033] Figure 12 for Figure 11 A top view of the upper middle ring when it becomes an ellipse.

[0034] In the figure: 100, detection machine body; 200, lifting frame; 210, lifting plate; 220, connecting column; 230, pressing cone; 300, mounting column; 310, mounting groove; 320, cover plate; 400, placement plate; 410, rotating drum; 420, mounting box; 430, synchronous belt; 450, matching rod; 510, upper ring; 520, lower ring; 530, spring piece; 540, support plate; 610, limiting column; 620, cylinder; 710, partition; 720, gear; 730, rack; 740, connecting seat; 750, adjusting motor. DETAILED DESCRIPTION

[0035] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0036] An embodiment of a structural strength detection device for an electrical component of the present invention is as follows: Figures 1 to 12 As shown, it includes a detection machine body 100, a mounting column 300, a placement plate 400, and a striking mechanism.

[0037] A pressure cone 230 that moves up and down is provided above the detection machine body 100; the small end of the pressure cone 230 is set downward; a lifting assembly is provided between the pressure cone 230 and the detection machine body 100; the lifting assembly is used to drive the pressure cone 230 to move up and down; the lifting assembly includes a lifting frame 200; a lifting plate 210 is slidably installed on the lifting frame 200; a vertically arranged screw is rotatably installed on the lifting frame 200; the screw and the lifting plate 210 are threaded together; a lifting motor is fixed on the lifting frame 200; the output shaft of the lifting motor and the screw are fixedly connected; a connecting column 220 is fixed to the lower end of the lifting plate 210; the lower end of the connecting column 220 and the upper end of the pressure cone 230 are threadedly connected.

[0038] The mounting column 300 is provided below the pressing cone 230 ; the mounting column 300 is arranged along its axis, with its lower end fixed to the detection machine body 100 and its upper end provided with a mounting groove 310 with its opening facing upward.

[0039] A center hole is provided at the center of the placement plate 400; the center hole and the mounting column 300 are coaxial; the placement plate 400 is sleeved on the upper end of the mounting column 300 through the center hole; the placement plate 400 is rotatably installed on the mounting column 300 around the axis of the mounting column 300 through a rotating assembly; the rotating assembly includes a rotating drum 410 and an installation box 420; the rotating drum 410 is arranged below the placement plate 400 and is coaxially sleeved on the mounting column 300; the upper end of the rotating drum 410 is fixedly connected to the placement plate 400, and a first gear ring is fixed to the lower end; the installation box 420 is fixed on the detection machine body 100 and is located below the placement plate 400; a vertically arranged rotating rod is rotatably installed on the installation box 420; a second gear ring is fixed on the rotating rod; a synchronous belt 430 is sleeved between the first gear ring and the second gear ring; the synchronous belt 430 is meshed with the first gear ring; the synchronous belt 430 is meshed with the second gear ring; a rotating motor is fixed in the installation box 420; the output shaft of the rotating motor is fixedly connected to the rotating rod.

[0040] The placement plate 400 is equipped with a clamping assembly for clamping the part to be tested on the placement plate 400. Multiple clamping assemblies are distributed circumferentially along the center hole. The clamping assembly includes a mating block and a mating rod 450. The mating block is fixed to the placement plate 400. The mating rod 450 is radially arranged along the center hole. The mating rod 450 and the mating block are threadedly engaged. A turning handle is fixed to the end of the mating rod 450 away from the center hole. When the part to be tested is placed on the placement plate 400, the mating rod 450 is rotated to drive it toward the part to be tested. The multiple mating rods 450 work together to clamp the part to the placement plate 400.

[0041] The impact mechanism is used to impact the inner wall of the hinge hole of the part to be tested, so as to detect the part to be tested from the inner side of the hinge hole of the part to be tested, thereby improving the accuracy of the test result.

[0042] The spring mechanism includes an upper ring 510, a lower ring 520, a first adjustment assembly, and a second adjustment assembly; the upper ring 510 and the lower ring 520 are both elastic rings; the upper ring 510 is coaxially arranged above the lower ring 520; the upper ring 510 is coaxial with the center hole; the lower ring 520 is above the mounting groove 310 and above the placement plate 400; two support plates 540 are provided at the lower end of the lower ring 520; the two support plates 540 are symmetrical front to back; the support plates 540 are arranged up and down, the upper ends are fixedly connected to the lower ring 520, and the lower ends extend into the mounting groove 310; the lower ends of the support plates 540 are arranged in the mounting groove 310 so as to move radially along the upper ring 510;

[0043] Two spring pieces 530 are provided between the upper ring 510 and the lower ring 520; the two spring pieces 530 are arranged symmetrically about the axis of the upper ring 510; the spring piece 530 is an arc-shaped elastic piece coaxial with the upper ring 510, and the cross section of the spring piece 530 on the vertical plane passing through the axis of the upper ring 510 is an arc-shaped shape concave toward the axis of the upper ring 510; the upper end of the spring piece 530 is fixedly connected to the upper ring 510, and the lower end is fixedly connected to the lower ring 520; the hinge hole of the part to be tested is aligned with the mounting groove 310 and then placed When the plate 400 is placed, the upper ring 510 and the lower ring 520 are inserted into the hinge hole; the lifting assembly drives the pressing cone 230 to move downward and insert it into the upper ring 510 and the lower ring 520. The conical side wall of the pressing cone 230 abuts against the concave part of the spring piece 530 and pushes the spring piece 530 away from the axis of the upper ring 510. When the spring piece 530 exceeds the critical deformation state, the spring piece 530 instantly deforms outward in a direction away from the axis of the upper ring 510 and impacts the inner wall of the hinge hole of the part to be tested.

[0044] The first adjustment component is arranged between the upper ring 510 and the lower ring 520; the first adjustment component is used to adjust the distance between the upper ring 510 and the lower ring 520 to adjust the curvature of the concave spring piece 530; when the distance between the upper ring 510 and the lower ring 520 decreases, the curvature of the concave spring piece 530 increases, so that the spring piece 530 instantly convexly deforms to impact the inner wall of the hinge hole of the part to be tested, and the impact force increases; when the distance between the upper ring 510 and the lower ring 520 increases, the curvature of the concave spring piece 530 decreases, so that the spring piece 530 instantly convexly deforms to impact the inner wall of the hinge hole of the part to be tested, and the impact force decreases, thereby achieving the adjustment of the appropriate elastic impact force according to different parts to be tested, thereby expanding the scope of detection. The first adjustment component includes a limit column 610; the limit column 610 extends up and down; the upper end of the limit column 610 is fixedly connected to the upper ring 510, and the lower end is inserted into the support plate 540 and slides up and down with the support plate 540; a cylinder 620 is provided at the lower end of the limit column 610; the cylinder 620 is fixed in the support plate 540; the piston rod of the cylinder 620 is arranged up and down; the piston rod of the cylinder 620 is fixedly connected to the lower end of the limit column 610; the cylinder 620 is fixed to the support plate 540; 0 drives the limiting post 610 to move up and down to adjust the distance between the upper ring 510 and the lower ring 520, so as to adjust the curvature of the concave spring piece 530; when the cylinder 620 drives the limiting post 610 to move downward, the distance between the upper ring 510 and the lower ring 520 decreases, and the curvature of the concave spring piece 530 increases; when the cylinder 620 drives the limiting post 610 to move upward, the distance between the upper ring 510 and the lower ring 520 increases, and the curvature of the concave spring piece 530 decreases.

[0045] The second adjustment component is arranged between the support plate 540 and the mounting groove 310; the second adjustment component is used to adjust the distance between the two support plates 540; when it is necessary to detect the predetermined local points on the side wall of the hinge hole of the part to be tested, the second adjustment component drives the two support plates 540 to approach each other radially along the mounting column 300, so that the upper ring 510 and the lower ring 520 are deformed into an ellipse, so that the impact of the spring piece 530 on the inner wall of the hinge hole is adjusted from surface contact to point contact, and cooperates with the rotating component to drive the placement plate 400 to rotate, so that the predetermined local points on the side wall of the hinge hole of the part to be tested correspond to the two ends of the long axis after the upper ring 510 is deformed into an ellipse, so as to detect the predetermined local points on the side wall of the hinge hole of the part to be tested.

[0046] The second adjustment assembly includes a partition 710. The partition 710 is positioned within the mounting groove 310 and below the support plate 540. The partition 710 is fixed to the inner wall of the mounting groove 310. A gear 720 is rotatably mounted on the partition 710. Two racks 730 are provided on either side of the gear 720. The two racks 730 are arranged in parallel. The racks 730 are slidably mounted on the partition 710. A connecting seat 740 is fixed to the upper end of the rack 730. A slot is provided at the upper end of the connecting seat 740. The support plate 540 is plugged into the connecting seat 740 through the slot. An adjustment motor 750 is positioned below the partition 710. The adjustment motor 750 is fixed within the mounting groove 310. The output shaft of the adjustment motor 750 is fixedly connected to the gear 720. A cover plate 320 is provided at the upper end of the mounting column 300. The cover plate 320 has a slide groove, which slidably engages with the support plate 540. The cover plate 320 is fixed to the upper end of the mounting column 300. The cover plate 320 is used to prevent debris from entering the mounting groove 310 .

[0047] In combination with the above embodiments, the usage principle and working process of the present invention are as follows: when in use, the hinge hole of the part to be tested is aligned with the mounting groove 310 and then placed on the placement plate 400, and the upper ring 510 and the lower ring 520 are inserted into the hinge hole; the mating rod 450 is rotated to drive the mating rod 450 closer to the part to be tested, and multiple mating rods 450 cooperate to clamp the part to be tested and fix it on the placement plate 400.

[0048] The lifting assembly drives the pressing cone 230 to move downward and insert it into the upper ring 510 and the lower ring 520. The conical side wall of the pressing cone 230 abuts against the concave part of the spring piece 530 and pushes the spring piece 530 in the direction away from the axis of the upper ring 510. When the spring piece 530 exceeds the critical deformation state, the spring piece 530 instantly convexly deforms in the direction away from the axis of the upper ring 510 and impacts the inner wall of the hinge hole of the part to be tested.

[0049] The cylinder 620 drives the limiting post 610 to move up and down to adjust the distance between the upper ring 510 and the lower ring 520, so as to adjust the curvature of the concave spring 530; when the cylinder 620 drives the limiting post 610 to move downward, the distance between the upper ring 510 and the lower ring 520 decreases, and the curvature of the concave spring 530 increases; when the cylinder 620 drives the limiting post 610 to move upward, the distance between the upper ring 510 and the lower ring 520 increases, and the curvature of the concave spring 530 decreases. When the distance between the upper ring 510 and the lower ring 520 decreases, the inward curvature of the spring piece 530 increases, causing the spring piece 530 to instantly convexly deform to impact the inner wall of the hinge hole of the part to be tested, and the impact force increases. When the distance between the upper ring 510 and the lower ring 520 increases, the inward curvature of the spring piece 530 decreases, causing the spring piece 530 to instantly convexly deform to impact the inner wall of the hinge hole of the part to be tested, and the impact force decreases. This achieves the adjustment of appropriate elastic impact force according to different parts to be tested, thereby expanding the scope of detection. When it is necessary to detect the predetermined local points on the side wall of the hinge hole of the part to be tested, the adjustment motor 750 drives the gear 720 to rotate, and the gear 720 drives the two racks 730 to slide toward each other on the partition 710, so as to drive the two support plates 540 to approach each other radially along the mounting column 300, so that the upper ring 510 and the lower ring 520 are deformed into an ellipse, so that the impact of the spring 530 on the inner wall of the hinge hole is adjusted from surface contact to point contact, and the rotating component is cooperated to drive the placement plate 400 to rotate, so that the predetermined local points on the side wall of the hinge hole of the part to be tested correspond to the two ends of the long axis after the upper ring 510 is deformed into an ellipse, so as to detect the predetermined local points on the side wall of the hinge hole of the part to be tested.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A structural strength detection device for an electrical component, characterized in that: include: The detector body is provided with a pressing cone that moves up and down on the top; the small end of the pressing cone is set downward; a lifting component is provided between the pressing cone and the detector body; the lifting component is used to drive the pressing cone to move up and down; The mounting column is provided below the pressure cone; the axis of the mounting column is arranged up and down, the lower end is fixed on the detector body, and the upper end is provided with a mounting groove with an opening facing upwards; The placement plate has a center hole at its center; the center hole is coaxial with the mounting post; the placement plate is sleeved on the upper end of the mounting post through the center hole; the placement plate is rotatably mounted on the mounting post around the axis of the mounting post via a rotating assembly; a clamping assembly is provided on the placement plate; the clamping assembly is used to clamp the part to be tested on the placement plate; The impact mechanism is used to impact the inner wall of the hinge hole of the part to be tested; the impact mechanism includes an upper ring, a lower ring, a first adjustment component, and a second adjustment component; the upper ring and the lower ring are both elastic rings; the upper ring is coaxially arranged above the lower ring; the upper ring and the center hole are coaxial; the lower ring is above the installation groove and above the placement plate; two support plates are provided at the lower end of the lower ring; the two support plates are symmetrical front and back; the support plates are arranged up and down, the upper ends are fixedly connected to the lower ring, and the lower ends extend into the installation groove; the lower ends of the support plates are arranged in the installation groove to move radially along the upper ring; between the upper ring and the lower ring Two spring sheets are provided; the two spring sheets are arranged symmetrically about the axis of the upper ring; the spring sheet is an arc-shaped elastic sheet coaxial with the upper ring, and the cross-section of the spring sheet on the vertical plane passing through the axis of the upper ring is an arc-shaped sheet concave toward the axis of the upper ring; the upper end of the spring sheet is fixedly connected to the upper ring, and the lower end is fixedly connected to the lower ring; the first adjustment component is arranged between the upper ring and the lower ring; the first adjustment component is used to adjust the distance between the upper ring and the lower ring to adjust the curvature of the concave spring sheet; the second adjustment component is arranged between the support plate and the mounting groove; the second adjustment component is used to adjust the distance between the two support plates.

2. The structural strength detection device for an electrical component according to claim 1, characterized in that: The first adjustment component includes a limit column; the limit column is extended up and down; the upper end of the limit column is fixedly connected to the upper ring, and the lower end is inserted into the support plate and slides up and down with the support plate; a cylinder is provided at the lower end of the limit column; the cylinder is fixed in the support plate; the piston rod of the cylinder is set up and down; the piston rod of the cylinder is fixedly connected to the lower end of the limit column.

3. The structural strength detection device for an electrical component according to claim 2, characterized in that: The second adjustment component includes a partition; the partition is arranged in the installation groove and is below the support plate; the partition is fixed on the inner wall of the installation groove; a gear is rotatably installed on the partition; two racks are provided on both sides of the gear; the two racks are arranged in parallel; the rack is slidably installed on the partition; a connecting seat is fixed to the upper end of the rack; a slot is provided at the upper end of the connecting seat; the support plate is plugged into the connecting seat through the slot.

4. The structural strength detection device for an electrical component according to claim 3, characterized in that: An adjusting motor is provided under the partition; the adjusting motor is fixed in the mounting groove; and the output shaft of the adjusting motor is fixedly connected to the gear.

5. The structural strength detection device for an electrical component according to claim 4, characterized in that: A cover plate is provided on the upper end of the installation column; a slide groove is provided on the cover plate; the slide groove and the support plate are slidably matched; and the cover plate is fixed on the upper end of the installation column.

6. The structural strength detection device for an electrical component according to claim 1, characterized in that: There are multiple clamping assemblies distributed along the circumference of the center hole; the clamping assembly includes a matching block and a matching rod; the matching block is fixed on the placement plate; the matching rod is arranged radially along the center hole; the matching rod and the matching block are threadedly matched.

7. The structural strength detection device for an electrical component according to claim 6, characterized in that: A turning handle is fixed on one end of the matching rod away from the central hole.

8. The structural strength detection device for an electrical component according to claim 1, characterized in that: The rotating assembly includes a rotating drum and an installation box; the rotating drum is arranged under the placement plate and is coaxially sleeved on the installation column; the upper end of the rotating drum is fixedly connected to the placement plate, and the lower end is fixed with a first gear ring; the installation box is fixed on the detection machine body and is located under the placement plate; a vertically arranged rotating rod is rotatably installed on the installation box; a second gear ring is fixed on the rotating rod; a synchronous belt is sleeved between the first gear ring and the second gear ring; the synchronous belt and the first gear ring are meshed; the synchronous belt and the second gear ring are meshed; a rotating motor is fixed in the installation box; the output shaft of the rotating motor is fixedly connected to the rotating rod.

9. The structural strength detection device for an electrical component according to claim 1, characterized in that: The lifting assembly includes a lifting frame; a lifting plate is slidably installed on the lifting frame; a vertically arranged screw is rotatably installed on the lifting frame; the screw and the lifting plate are threaded together; a lifting motor is fixed on the lifting frame; the output shaft of the lifting motor and the screw are fixedly connected; a connecting column is fixed at the lower end of the lifting plate; the lower end of the connecting column and the upper end of the pressure cone are threadedly connected.

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