An electrical enclosure strength detection device

Abstract

The present application relates to the technical field of shell strength detection, and particularly relates to an electrical shell strength detection device, which comprises a detection table, a carrying mechanism, a conveying belt and a pressure applying mechanism arranged on the detection table in sequence; the electrical shell strength detection device is provided with a positioning mechanism; when the driving cylinder pushes the driving plate to move inward, the driving side support plate is driven to support outward synchronously to realize the positioning of the electrical shell, so that the positional deviation generated when the electrical shell is conveyed by the conveying belt or carried by the carrying mechanism is corrected; meanwhile, the top plate is driven to move upward to push the electrical shell to be pressed to correct the electrical shell before detection, so that the problems such as concave caused by production defects of the electrical shell before detection are prevented to affect the detection accuracy.

Description

Technical Field

[0001] This invention relates to the field of enclosure strength testing technology, and specifically to an electrical enclosure strength testing device. Background Technology

[0002] In the field of modern electrical engineering, electrical enclosures play an indispensable role as important components protecting internal electrical components, wiring, and control systems. They are typically made of materials such as metal or high-strength engineering plastics, providing a physical protective barrier for the delicate and fragile internal electrical components. This prevents them from being interfered with or damaged by external environmental factors, such as dust, moisture, corrosive substances, and mechanical impacts, ensuring that the electrical system can operate stably and reliably under various complex operating conditions.

[0003] However, electrical enclosures often bear complex multi-directional stresses in actual use, while some existing testing equipment can only perform stress testing in a single direction or a simple combination of directions. Furthermore, the equipment to be tested needs to be precisely placed under the pressure-bearing component, which greatly increases the difficulty of the work for the staff.

[0004] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the Invention

[0005] The purpose of this invention is to provide an electrical enclosure strength testing device that can effectively solve the above-mentioned technical problems.

[0006] To achieve the objectives of this invention, the following technical solution is adopted: An electrical enclosure strength testing device includes: a testing table, a conveying mechanism, a conveyor belt, and a pressure application mechanism sequentially arranged on the testing table; and a positioning mechanism for positioning the enclosure. The positioning mechanism includes: a positioning sleeve slidably mounted on the testing platform, side support plates inserted through both sides of the positioning sleeve, a hinge rod hinged to the side support plate, a drive plate hinged to the hinge rod, a cylinder one for driving the drive plate to move, and the output shaft of the cylinder one being fixedly connected to the drive plate; the cylinder one is fixedly mounted on the testing platform.

[0007] Furthermore, the positioning sleeve is provided with a top support assembly; The top support assembly includes: a compression rod inserted into the positioning sleeve, a top plate fixedly installed at one end of the compression rod, and a convex surface on the drive plate; the compression rod abuts against the convex surface; the top plate and the positioning sleeve are elastically connected by a spring.

[0008] Furthermore, the convex surface of the drive plate is divided into a lifting surface, a straight surface, and a lowering surface; Furthermore, the top plate is also equipped with a detection component; The detection assembly includes: a slot formed in the top plate, a through hole formed in the positioning sleeve, a pin inserted synchronously in the slot and the through hole, a second spring for resetting the pin, and a locking plate slidably installed on the inner wall of the positioning sleeve; a first abutment block and a second abutment block fixedly installed on the drive plate; a first driven block and a second driven block fixedly installed on the locking plate; the pin consists of a top head, a sliding cavity, and a third spring; the diameter of the top head is larger than the diameter of the slot; the second spring is located between the sliding cavity and the positioning sleeve; and a limit hole is formed on the locking plate.

[0009] Furthermore, the detection platform is also equipped with a CCD detection camera.

[0010] Furthermore, the conveying mechanism includes: a second cylinder fixedly installed on the testing platform, a rotary cylinder fixedly installed on the piston rod of the second cylinder, a mounting plate fixedly installed on the rotating shaft of the rotary cylinder, and a suction cup fixedly installed on the mounting plate.

[0011] Furthermore, the pressure application mechanism includes: a truss erected on the testing platform, a cylinder three fixedly installed on the truss, and a pressure head fixedly installed on the piston of the cylinder three.

[0012] Furthermore, the ejector pin is provided in multiple sets around its pressure area.

[0013] Furthermore, a sensor is provided on the top of the ejector pin, and a proximity switch matching the sensor is provided on the top plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The electrical housing strength testing device of the present invention, by setting a positioning mechanism, on the one hand, when the driving cylinder pushes the driving plate to move inward, the driving side support plate synchronously supports outward to achieve positioning of the electrical housing, ensuring that the positional deviation of the electrical housing during conveyor belt transport and handling by the handling mechanism is corrected; at the same time, the driving top plate moves upward to push the electrical housing to be pressurized to correct it, preventing the electrical housing before testing from having problems such as indentation due to production defects, which would affect the accuracy of the test. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0016] Figure 1 This is a schematic diagram of the structure of an electrical housing strength testing device according to the present invention; Figure 2 This is a cross-sectional view of an electrical enclosure strength testing device according to the present invention; Figure 3 This is a schematic diagram of the pressure application mechanism in this invention; Figure 4 This is a schematic diagram of the transport mechanism in this invention; Figure 5 This is a schematic diagram of the positioning mechanism in this invention; Figure 6 This is a cross-sectional view of the top support component in this invention; Figure 7 This is a schematic diagram of the top support component in this invention; Figure 8 for Figure 7 Enlarged view of part A in the middle; Figure 9 This is a cross-sectional view of the detection component in this invention; Figure 10 This is a schematic diagram of the ejector pin in this invention.

[0017] In the diagram: 1. Inspection table; 2. Handling mechanism; 3. Conveyor belt; 4. Pressing mechanism; 5. Positioning mechanism; 51. Positioning sleeve; 52. Side support plate; 53. Hinge rod; 54. Drive plate; 55. Cylinder 1; 11. Top support assembly; 111. Extrusion rod; 112. Top plate; 113. Convex surface; 114. Spring 1; 1131. Lifting surface; 1132. Straight surface; 1133. Lowering surface; 121. Groove; 122. Through hole; 123. Ejector pin; 124. Spring 2; 125. Locking plate; 126. Abutment block 1; 127. Abutment block 2; 128. Driven block 1; 129. Driven block 2; 1231. Ejector head; 1232. Sliding cavity; 1233. Spring 3; 130. Limiting hole; 6. CCD inspection camera; 21. Cylinder 2; 22. Rotary cylinder; 23. Mounting plate; 24. Suction cup; 41. Truss; 42. Cylinder 3; 43. Pressure head. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0019] In the description of this invention, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0020] like Figures 1 to 10 As shown, the present invention provides an electrical enclosure strength testing device, comprising: a testing platform 1, a conveying mechanism 2, a conveyor belt 3, and a pressure applying mechanism 4 sequentially disposed on the testing platform; and a positioning mechanism 5 for positioning the enclosure; The positioning mechanism 5 includes: a positioning sleeve 51 slidably mounted on the testing table 1; side support plates 52 inserted through both sides of the positioning sleeve; a hinge rod 53 hinged to the side support plate 52; a drive plate 54 hinged to the hinge rod 53; a cylinder 55 that drives the drive plate 54 to move; and the output shaft of the cylinder 55 is fixedly connected to the drive plate 54. The cylinder 55 is fixedly mounted on the testing table 1. When the conveyor belt 3 transports the electrical housing to the predetermined position directly below the pressure applying mechanism 4, the cylinder 55 starts and outputs linear displacement, pushing the positioning sleeve 51 to move axially toward the interior of the electrical housing. It should be noted that the open end face of the electrical housing and the positioning sleeve 51 are arranged coaxially and aligned to ensure that when the electrical housing reaches the designated position below the pressure applying mechanism 4, the positioning sleeve 51 can be smoothly inserted into the internal cavity of the electrical housing under the driving action of the cylinder 55.

[0021] After the positioning sleeve 51 completes its initial insertion and reaches its end position, cylinder 55 continuously applies thrust. This thrust acts on the drive plate 54 through a mechanical transmission structure, causing the drive plate 54 to undergo axial displacement within the positioning sleeve 51. At this time, the hinge rod 53, hinged to the drive plate 54, converts linear motion into radial motion of the side support plate 52 under the drive of the drive plate 54, synchronously pushing the side support plate 52 to expand towards the inner wall of the electrical housing. It should be noted that two sets of inner side plate structures are symmetrically arranged on both sides of the positioning sleeve 51, with each set of inner side plates interspersed with side support plates 52. This symmetrical layout allows the side support plates 52 on both sides of the positioning sleeve 51 to move synchronously and equidistantly towards the inner wall of the electrical housing during the movement of the drive plate 54, thus achieving the function of internal support for the electrical housing.

[0022] The aforementioned internal support structure effectively prevents internal cavity deformation that may occur in the electrical housing during early processing and transportation, avoiding interference with subsequent test results due to housing deformation. Simultaneously, the synchronous outward expansion of the side support plate 52 accurately positions the electrical housing, correcting any positional deviations that may occur during conveyor belt 3 transport and handling by the handling mechanism 2. This ensures that when the subsequent pressurizing mechanism applies downward pressure, the test point on the electrical housing is precisely located directly below the pressurizing mechanism 4, thereby ensuring the accuracy and reliability of the entire testing process.

[0023] The conveying mechanism 2 includes: a second cylinder 21 fixedly installed on the testing table 1, a rotary cylinder 22 fixedly installed on the piston rod of the second cylinder 21, a mounting plate 23 fixedly installed on the rotating shaft of the rotary cylinder 22, and a suction cup 24 fixedly installed on the mounting plate 23; When strength testing of the electrical housing is required, the rotary cylinder 22 is activated and outputs rotational torque, driving the mounting plate 23 to rotate directionally around a preset axis until the mounting plate 23 is precisely positioned directly above the electrical housing to be tested. At this time, the suction cup 24, which is connected to an external air source, generates an adsorption force under negative pressure, firmly adhering the electrical housing to its surface.

[0024] Subsequently, the rotary cylinder 22 actuates again, driving the mounting plate 23 and the electrical housing attached to it to rotate synchronously in the predetermined rotation direction, transferring the electrical housing and placing it on the conveyor belt. Utilizing its continuous operation, the conveyor belt smoothly transports the electrical housing to be tested to the predetermined testing position directly below the pressure applying mechanism 4, preparing for the subsequent pressure strength testing process.

[0025] It should be noted that the system is equipped with a second cylinder 21. After the suction cup 24 completes the fixation and adsorption operation of the electrical housing, the second cylinder 21 can output linear displacement according to the control command to precisely adjust the height position of the electrical housing fixed on the suction cup 24. Through this height adjustment function, the spatial posture of the electrical housing during the transmission process can be effectively optimized, ensuring that it remains stable on the conveyor belt, thereby improving the reliability and stability of the entire transmission process.

[0026] It should be noted that the conveyor belt 3 is existing technology, and its specific structure will not be described in detail here.

[0027] The pressure application mechanism 4 includes: a truss 41 erected on the testing platform 1, a cylinder 42 fixedly installed on the truss 41, and a pressure head 43 fixedly installed on the piston of the cylinder 42.

[0028] Once the electrical housing is precisely transported to the designated position directly below the pressure applying mechanism 4 via the transmission system, the positioning mechanism 5 is activated and performs a calibration operation. By precisely adjusting the spatial position of the electrical housing, it ensures that it is coaxially aligned with the pressure head 43 of the pressure applying mechanism 4. After the positioning calibration is completed, cylinder 3 42 is activated according to the preset control program, outputting linear driving force and pushing the pressure head 43 to apply pressure uniformly upwards along the axial direction of the electrical housing.

[0029] It is important to note that the pressure head 43 integrates a high-precision pressure sensor, which has real-time data acquisition and transmission capabilities. During each stage of the downward stroke of the cylinder 42 pushing the pressure head 43, the pressure sensor continuously and accurately detects and reports the pressure changes experienced by the pressure head 43, thereby generating a complete pressure change curve. By analyzing and processing this pressure change curve, the strength characteristics of the electrical housing can be quantitatively detected and evaluated.

[0030] In addition, the testing station 1 is equipped with a CCD (Charge Coupled Device) industrial inspection camera 6. This camera has high-resolution imaging capabilities and can capture and record images of the deformation state of the electrical housing in real time as the pressure head 43 presses down on it. By analyzing and processing these real-time image data, the deformation of the electrical housing under different pressures can be obtained intuitively and accurately, providing a reliable visual basis for further evaluation of the structural strength and stability of the electrical housing.

[0031] The positioning sleeve 51 is provided with a top support assembly 11; The top support assembly 11 includes: a pressing rod 111 inserted into the positioning sleeve 51, a top plate 112 fixedly installed at one end of the pressing rod 111, and a convex surface 113 provided on the drive plate 54; the pressing rod 111 abuts against the convex surface 113; the top plate 112 and the positioning sleeve 51 are elastically connected by a spring 114.

[0032] When cylinder 55 starts and outputs linear driving force, pushing drive plate 54 to move axially inward along positioning sleeve 51, the convex surface 113 structure on the upper part of drive plate 54 interacts mechanically with extrusion rod 111. Specifically, the convex surface 113 of drive plate 54 is functionally divided into three characteristic areas: lifting surface 1131, straight surface 1132, and lowering surface 1133. In the initial stage of drive plate 54 movement, under the constant elastic preload applied by spring 114, the inclined surface at the end of extrusion rod 111 always remains in close contact with the convex surface 113 of drive plate 54.

[0033] As the drive plate 54 continues to move, the pressing rod 111 first contacts the lifting surface 1131 of the convex surface 113. Guided by the lifting surface 1131, the pressing rod 111 displaces axially upwards, driving the top plate 112 to move upwards synchronously. After the top plate 112 rises to contact the inner wall of the electrical housing, it applies a uniform radial support force to it, achieving the flush operation of the electrical housing's internal support. This internal support mechanism can effectively compensate for the concave deformation of the electrical housing caused by manufacturing process deviations, ensuring that the geometric dimensions of the housing cavity meet the testing requirements, thereby avoiding adverse effects on the accuracy of subsequent strength test results due to housing deformation.

[0034] As the drive plate 54 continues to move forward, the pressing rod 111 enters the straight surface 1132 region of the convex surface 113. During this stage, the axial position of the pressing rod 111 remains unchanged, and the top plate 112 maintains its internal support to the electrical housing, providing stable mechanical support for the testing process. Subsequently, the pressing rod 111 enters the descending surface 1133 region of the convex surface 113. Guided by the descending surface 1133, the pressing rod 111 moves downward under the elastic force of the spring 124, simultaneously causing the top plate 112 to move downward, disengaging the top plate 112 from the inner wall of the electrical housing. This design ensures that when the pressure mechanism 4 applies a testing load to the electrical housing, the top plate 112 does not mechanically interfere with the load transmission path, thereby guaranteeing the accuracy of the testing force and the validity of the testing results.

[0035] The top plate 112 is also equipped with a detection component; The detection assembly includes: a slot 121 formed on the top plate 112; a through hole 122 formed in the positioning sleeve 51; a pin 123 synchronously inserted in the slot 121 and the through hole 122; a second spring 124 that drives the pin 123 to reset; a locking plate 125 slidably installed on the inner wall of the positioning sleeve 51; an abutment block 126 and an abutment block 127 fixedly installed on the drive plate 54; a driven block 128 and a driven block 129 fixedly installed on the locking plate 125; the pin 123 is composed of a head 1231, a sliding cavity 1232, and a third spring 1233; the diameter of the head 1231 is larger than the diameter of the slot 121; the second spring 124 is located between the sliding cavity 1232 and the positioning sleeve 51; and a limit hole 130 is formed on the locking plate 125. When cylinder 55 pushes drive plate 54 into positioning sleeve 51, the convex surface 113 above drive plate 54 presses extrusion rod 111 upward. Since the outer diameter of ejector pin 123 head 1231 is larger than the inner diameter of slot 121, during the process of top plate 112 being driven upward by extrusion rod 111, top plate 112 synchronously pulls ejector pin 123 upward to make axial displacement through mechanical connection structure.

[0036] When the drive plate 54 continues to move until the stroke of the convex surface 113 ends, the contact between the pressing rod 111 and the convex surface 113 of the drive plate 54 is released, and the pressing rod 111 drives the top plate 112 to move downward and away from the inner wall of the electrical housing. At this time, the ejector pin 123, based on its relative positional relationship with the top plate 112 and the electrical housing, is pressed tightly against the inner wall of the electrical housing, preparing for subsequent deformation detection of the electrical housing.

[0037] As the top plate 112 drives the ejector pin 123 to move upward, the sliding cavity 1232 of the ejector pin 123 moves linearly upward along the through hole 122 and the slot 121 on the positioning sleeve 51. Simultaneously, the abutment block 126 on the drive plate 54, after moving a certain axial distance with the drive plate 54, mechanically abuts against the driven block 128. The abutment block 126 transmits the driving force to the driven block 128, which in turn drives the locking plate 125 to move through the mechanical transmission chain.

[0038] The locking plate 125 has a specially designed limiting hole 130. When the ejector pin 123 is not in the working state, the ejector pin 123 is inserted into the limiting hole 130 to achieve initial positioning and limiting of the ejector pin 123. When the drive plate 54 pushes the top plate 112 upward, the ejector pin 123 moves upward and disengages from the limiting hole 130. After the drive plate 54 moves to a specific position, the abutment block 126 abuts against the driven block 128 and transmits the driving force to the locking plate 125, driving the locking plate 125 to move, causing the limiting hole 130 on the locking plate 125 to be axially misaligned with the slot 121 and through hole 122 on the positioning sleeve 51. At this time, the top plate 112 has moved away from the inner wall of the electrical housing. Under the misalignment and limiting action of the locking plate 125, the pin 123 cannot retract into the original limiting hole 130, thus maintaining a state of close contact with the inner wall of the electrical housing, so as to perform probe-type deformation detection on the electrical housing.

[0039] When the drive plate 54 completes the detection action and resets, the first abutment block 126 abuts against the second driven block 129 again, and drives the locking plate 125 to reset through mechanical transmission, so that the limiting hole 130 is aligned with the slot 121 and the through hole 122 again, and the ejector pin 123 can be inserted into the limiting hole 130 again, realizing the automatic reset of the ejector pin 123.

[0040] This testing device overcomes the limitations of existing technologies that can only judge the compressive strength of electrical enclosures through pressure change curves during mechanical pressure application. It enables the simultaneous testing of the internal material uniformity and localized hardness of the electrical enclosure, while also assessing its compressive strength. Specifically, multiple sets of ejector pins 123 are evenly arranged around the pressure application area of ​​the electrical enclosure. When the enclosure deforms under pressure, each ejector pin 123 contracts to varying degrees depending on the degree of deformation in different parts of the enclosure. A high-precision displacement sensor monitors the contraction length of each ejector pin 123 in real time, and the data is collected and analyzed. If the differences in the contraction length of the multiple sets of ejector pins 123 are too large, it indicates differences in the material of the corresponding parts of the electrical enclosure, potentially indicating localized softness or material inhomogeneity. If the changes in the contraction length of each ejector pin 123 are small and consistent, it indicates that the electrical enclosure material is normal and exhibits good uniformity and consistency.

[0041] The top 1231 of the ejector pin 123 is provided with a sensor, and the top plate 112 is provided with a proximity switch that matches the sensor. Due to prolonged use, the elasticity of the internal spring 1233 is greatly reduced due to long-term compression. If the ejector pin 123 is not detected and replaced in time, inaccurate detection will occur.

[0042] In summary, when the cylinder pushes the drive plate 54 inward, the synchronous outward support of the drive side support plate 52 positions the electrical housing, ensuring that the positional deviation of the electrical housing during conveyor belt transport and handling by the handling mechanism 2 is corrected. This ensures that when the subsequent pressurizing mechanism applies downward pressure, its test point is directly below the pressurizing mechanism 4, ensuring the accuracy of the test. At the same time, the drive top plate 112 moves upward to push the electrical housing to be pressurized to correct it, preventing the electrical housing from having internal concavity due to production defects before testing, which would affect the accuracy of the test. Simultaneously, it drives the ejector pin 123 to approach the inner wall of the electrical housing to check for problems such as inconsistent materials or localized softness within the housing.

[0043] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0044] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An electrical enclosure strength testing device, characterized in that, include: Testing platform, conveyor belt, and pressure application mechanism arranged sequentially on the testing platform; and a positioning mechanism for positioning the housing; The positioning mechanism includes: a positioning sleeve slidably mounted on the testing platform, side support plates inserted through both sides of the positioning sleeve, a hinge rod hinged to the side support plate, a drive plate hinged to the hinge rod, a cylinder one for driving the drive plate to move, and the output shaft of the cylinder one being fixedly connected to the drive plate; the cylinder one is fixedly mounted on the testing platform. The positioning sleeve is equipped with a top support component; The top support assembly includes: a pressing rod inserted into the positioning sleeve, a top plate fixedly installed at one end of the pressing rod, and a convex surface provided on the drive plate; the pressing rod abuts against the convex surface; the top plate and the positioning sleeve are elastically connected by a spring. The top plate is also equipped with a detection component; The detection assembly includes: a slot formed in the top plate, a through hole formed in the positioning sleeve, a pin inserted synchronously in the slot and the through hole, a second spring for resetting the pin, and a locking plate slidably installed on the inner wall of the positioning sleeve; a first abutment block and a second abutment block fixedly installed on the drive plate; and a first driven block and a second driven block fixedly installed on the locking plate. The pin consists of a top head, a sliding cavity, and a third spring. The diameter of the top head is larger than the diameter of the slot. The second spring is located between the sliding cavity and the positioning sleeve. Limiting holes are provided on the locking plate.

2. The electrical enclosure strength testing device as described in claim 1, characterized in that, The convex surface of the drive plate is divided into a lifting surface, a straight surface, and a lowering surface.

3. The electrical enclosure strength testing device as described in claim 1, characterized in that, The testing platform is also equipped with a CCD testing camera.

4. The electrical enclosure strength testing device as described in claim 1, characterized in that, The conveying mechanism includes: a second cylinder fixedly installed on the testing platform, a rotary cylinder fixedly installed on the piston rod of the second cylinder, a mounting plate fixedly installed on the rotating shaft of the rotary cylinder, and a suction cup fixedly installed on the mounting plate.

5. The electrical enclosure strength testing device as described in claim 1, characterized in that, The pressure application mechanism includes: a truss erected on the testing platform, a cylinder three fixedly installed on the truss, and a pressure head fixedly installed on the piston of the cylinder three.

6. The electrical enclosure strength testing device as described in claim 1, characterized in that, The ejector pins are arranged in multiple sets around its pressure zone.

7. The electrical enclosure strength testing device as described in claim 1, characterized in that, The top of the ejector pin is provided with a sensor, and the top plate is provided with a proximity switch that matches the sensor.

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