Square steel belt length and pressure resistance performance integrated detection equipment

Abstract

The utility model provides a square steel band length and integrated type detection equipment of pressure resistance performance relates to steel band performance detection technical field, including vertical tank and its inside oblique setting's leaning on platform, length detection module and pressure resistance detection module are integrated on leaning on platform, length detection module moves away fixed block motion to stretch steel band through screw drive sliding block, control tensile force using pressure sensor, and measure elongation through displacement sensor, pressure resistance detection module is pressed tightly steel band both sides through conducting voltage plate no.

Description

Technical Field

[0001] This utility model relates to the field of steel strip performance testing technology, and in particular to an integrated testing device for the length and pressure resistance of square steel strips. Background Technology

[0002] Square steel strips, as a common structural component, are widely used in industries such as electronics, electrical engineering, and automobiles. During their use, they are required to have good mechanical tensile properties (i.e., the elongation length under a certain tensile force meets the standard) and sufficient pressure resistance of the insulating layer on their surface (such as heat shrink tubing) to prevent leakage or breakdown. Currently, the tensile testing of the steel strip length and the pressure resistance testing of the insulating layer are usually carried out separately, requiring different equipment. This is cumbersome, inefficient, and prone to introducing errors due to manual transfer of workpieces. In addition, when clamping steel strips on a horizontally placed platform, operators need to frequently bend over or move, resulting in high labor intensity and easily affecting the clamping and positioning accuracy.

[0003] Therefore, there is an urgent need for an integrated testing device that can combine two testing functions, is easy to operate, and can effectively reduce labor intensity and improve testing efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an integrated testing device for the length and pressure resistance of square steel strips that is structurally reasonable and easy to operate. This device can realize the rapid clamping of steel strips, automatic tensile length detection, and automatic pressure resistance testing, effectively improving testing efficiency and accuracy, and reducing the labor intensity of operators.

[0005] This utility model provides the following technical solution: An integrated testing device for the length and pressure resistance of square steel strips, comprising: Vertical tank with an operating opening on the front; The platform is fixedly installed inside the vertical tank, with its platform surface inclined relative to the vertical direction and its high end facing away from the operating opening. A length detection module, installed on the inclined platform, is used to clamp and stretch the square steel strip and measure its elongation; The withstand voltage test module is used to perform electrical strength tests on square steel strips covered with insulating heat shrink tubing.

[0006] Preferably, the length detection module includes: The inclined tooling plate is fixed to the inclined platform; At least one fixing block is fixedly installed on the high end of the inclined tooling plate; The lead screw is mounted on the inclined tooling plate via a bearing seat and is driven to rotate by a drive device; At least one nut slider is screwed onto the lead screw and can be driven by the lead screw to move in a direction parallel to the inclined platform surface; At least one sliding plate is slidably mounted on the nut slider; At least one sliding block is fixed on the slide plate and, together with the fixing block, is used to clamp the square steel strip; A pressure sensor, mounted on the nut slider, is used to detect the pressure applied by the slide plate when it is stretched; A displacement sensor is used to detect the displacement of the slide plate.

[0007] Preferably, the fixing block is further provided with a guide block for guiding the square steel strip when it is inserted.

[0008] Preferably, the withstand voltage detection module includes: The right-side pressure plate assembly, including voltage-conducting plate one and voltage-conducting plate two, is located on the outside of the right straight section of the square steel strip and can be driven to move in opposite directions to press the right side of the square steel strip. The left pressure plate assembly, including voltage-conducting plate three and voltage-conducting plate four, is located on the outside of the left straight section of the square steel strip and can be driven to move in opposite directions to press the left side of the square steel strip. The guide head is used to form electrical contact with the end of the square steel strip; A high-voltage power supply and a current detection device, wherein the first, second, third, and fourth voltage-conducting plates are all electrically connected to the positive terminal of the high-voltage power supply, and the guide head is electrically connected to the negative terminal of the high-voltage power supply and connected to the current detection device.

[0009] Preferably, the right pressure plate group and the left pressure plate group are driven by clamping cylinders to achieve clamping and releasing.

[0010] Preferably, the displacement sensor is a grating ruler.

[0011] Preferably, the driving device is a servo motor.

[0012] Preferably, the angle between the inclined platform and the horizontal plane is 60 to 90°.

[0013] The beneficial effects of this utility model are: 1. High integration and high efficiency: The length detection and pressure resistance detection are seamlessly integrated into one device, realizing "one clamping, two detections", eliminating workpiece turnaround time and repeated positioning errors, and significantly improving detection efficiency; 2. Humanized operation: The vertical tilting design ensures that the operating area faces the operator directly, which is ergonomic. The loading and unloading actions are direct and labor-saving, which greatly improves the operating experience and reduces labor intensity. 3. High detection accuracy: High-precision pressure and displacement sensors (such as grating rulers) are used for measurement, resulting in accurate and reliable results. One clamping ensures that the reference standard is consistent for two tests, making the data more convincing. 4. Automation and Safety: The entire testing process is controlled by a program and executed automatically, reducing human error. The structural design of the withstand voltage test section ensures operational safety during high-voltage applications. 5. Compact structure: The vertical layout saves space in the production area. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a partially enlarged structural diagram of one end of the length detection module; Figure 3 This is a partially enlarged schematic diagram of the other end of the length detection module; Figure 4 This is an enlarged schematic diagram of the sliding block connection at one end of the length detection module; Figure 5 It is a schematic diagram showing the relative distribution of a set of fixed blocks and sliding blocks; Figure 6 A schematic diagram of a structure in which a square steel strip is fitted at one end; Markings in the diagram: 1. Vertical slot box; 2. Inclined platform; 3. Inclined tooling plate; 4. Lead screw; 5. Fixing block; 6. Nut slider; 7. Slide plate; 8. Sliding block; 9. Pressure sensor; 10. Displacement sensor; 11. Square steel strip; 12. Insulating heat shrink tubing; 13. Voltage conductive plate one; 14. Voltage conductive plate two; 15. Voltage conductive plate three; 16. Voltage conductive plate four; 17. Guide head; 20. Guide block. Detailed Implementation

[0015] like Figure 1-6 The diagram shows a cross-sectional view of an integrated testing device for the length and pressure resistance of a square steel strip 11. In this embodiment, it includes a vertical tank 1, a sloping platform 2, and a testing fixture. The vertical tank 1 has an opening on its front, allowing operators easy access to the interior of the device. The sloping platform 2 is installed at an angle inside the vertical tank 1, with its upper end facing away from the opening of the vertical tank 1, i.e., tilted upwards towards the interior of the tank. This vertically tilted layout allows operators to stand in front of the opening and easily slip the square steel strip 11 onto the testing fixture from top to bottom without significant movement or bending over, saving considerable effort. The test fixture is installed on the inclined platform 2 and mainly includes an inclined fixture plate 3, a fixing block 5, a lead screw 4, a nut slider 6, a sliding plate 7, and a sliding block 8. The inclined fixture plate 3 is fixed on the inclined platform 2, the fixing block 5 is fixed on the inclined fixture plate 3, the lead screw 4 is mounted on the inclined fixture plate 3 through a bearing seat and is driven to rotate by a drive device (such as a servo motor), the nut slider 6 is screwed onto the lead screw 4, the sliding plate 7 is slidably installed on the nut slider 6, and its sliding direction is parallel to the axis of the lead screw 4. The sliding block 8 is fixed on the sliding plate 7. When performing length testing, the square steel strip 11 is placed around the fixed block 5 and the sliding block 8. The drive device is started, and the lead screw 4 rotates to drive the nut slider 6 away from the fixed block 5. This causes the sliding block 8 to stretch the square steel strip 11 through the slide plate 7. A pressure sensor 9 is also fixed on the nut slider 6. During the stretching process, one side of the slide plate 7 will press against the pressure sensor 9. When the pressure value detected by the pressure sensor 9 reaches the preset tensile force, the drive device stops, and the square steel strip 11 remains stretched under this constant tension. At this time, the displacement of the slide plate 7 is read by a displacement detection device (such as a grating ruler connected to the slide plate 7). This displacement is the stretched length of the square steel strip 11, and its length can be judged as qualified. After length testing, withstand voltage testing can be performed at the same workstation. The equipment also includes a withstand voltage testing module, which comprises a first set of conductive plates (conductive plate one 13 and conductive plate two 14), a second set of conductive plates (conductive plate three 15 and conductive plate four 16), and a conductor head 17. The first set of conductive plates can move towards each other to press against one side of the square steel strip 11 (already covered with heat-shrink tubing insulation), and the second set of conductive plates can move towards each other to press against the other side of the straight steel strip. The pressure plate is connected to the positive terminal of the withstand voltage test power supply, and the lead 17 is in good contact with the end (usually the uninsulated part) of the square steel strip 11 and connected to the negative terminal of the test power supply and the current detection device. During the test, the voltage applied between the voltage plate and the lead 17 is gradually increased. If the insulation layer outside the steel strip is not broken down when the voltage is increased to the set value, and there is no current signal from the current detection device, then the withstand voltage is qualified. If the insulation layer is broken down, the current will be conducted through the steel strip to the lead 17 and detected by the current detection device, and the withstand voltage is judged to be unqualified.

[0016] The detection steps of this utility model include: S1: Loading and clamping: The operator stands in front of the opening of the vertical trough 1 and places the square steel strip 11 onto the fixed block 5 and the sliding block 8 from top to bottom. The guide block 20 on the fixed block 5 guides the steel strip into position quickly and accurately; S2: Length detection: The control system starts the servo motor, which drives the lead screw 4 to rotate, causing the nut slider 6 to move the sliding block 8 away from the fixed block 5, thereby stretching the square steel strip 11. During the stretching process, the slide plate 7 transmits the stretching force to the pressure sensor 9. When the control system reads that the pressure value fed back by the pressure sensor 9 reaches the preset calibrated tension, it immediately commands the servo motor to stop rotating. At this time, the steel strip remains in a stretched state under standard tension. The displacement sensor 10 records the displacement of the slide plate 7 relative to the initial position during this process. This displacement is the elongation of the steel strip under standard tension. The control system compares this elongation with the preset tolerance range to determine whether the steel strip length is qualified. S3. Withstand pressure test: After the length test is completed, the steel strip remains clamped. The withstand voltage test module is activated, driving the first and second phases of the voltage conduction plate to move in opposite directions and press tightly against the insulation layer on the right side of the steel strip. At the same time, the third and fourth phases of the voltage conduction plate move in opposite directions and press tightly against the insulation layer on the left side of the steel strip. When the high-voltage power supply is started, a DC or AC high voltage that gradually increases from zero is applied to the guide voltage plate (positive terminal), and the guide head 17 is connected to the steel strip body as the negative terminal. As the voltage continues to rise to the withstand voltage test value required by the product (such as several kilovolts), if the insulating heat shrink tubing 12 on the surface of the steel strip is defective or broken down during this process, the current will flow through the breakdown point, through the steel strip body, and then through the conductor 17 to form a loop, and the current detection device will detect the abnormal current signal. If the current detection device does not detect a current exceeding the threshold during the period when the set voltage is reached and maintained, the steel strip is deemed to have qualified withstand voltage performance; otherwise, it is deemed to be unqualified. S4. Unloading and Resetting: After the inspection is completed, the conductive plate is released, and the lead screw 4 drives the sliding block 8 to move towards the fixed block 5 to reset. The operator can then easily remove the inspected steel strip.

[0017] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An integrated testing device for the length and pressure resistance of square steel strips, characterized in that, include: Vertical trough (1) with an operating opening on the front; The inclined platform (2) is fixedly installed inside the vertical trough (1), with its platform surface inclined relative to the vertical direction and its high end facing away from the operating opening. The length detection module is installed on the inclined platform (2) and is used to clamp and stretch the square steel strip (11) and measure its elongation. The withstand voltage test module is used to perform electrical strength tests on a square steel strip (11) covered with insulating heat shrink tubing (12).

2. The integrated testing device for the length and pressure resistance of a square steel strip according to claim 1, characterized in that, The length detection module includes: The inclined tooling plate (3) is fixed on the inclined platform (2); At least one fixing block (5) is fixedly installed on the high end of the inclined tooling plate (3); The lead screw (4) is mounted on the inclined tooling plate (3) via a bearing seat and is driven to rotate by a drive device; At least one nut slider (6) is screwed onto the lead screw (4) and can be driven by the lead screw (4) to move in a direction parallel to the inclined platform (2); At least one slide plate (7) is slidably mounted on the nut slider (6); At least one sliding block (8) is fixed to the sliding plate (7) and together with the fixing block (5) is used to clamp the square steel strip (11). A pressure sensor (9) is disposed on the nut slider (6) for detecting the pressure applied by the slide plate (7) when it is stretched; A displacement sensor (10) is used to detect the displacement of the slide plate (7).

3. The integrated testing device for the length and pressure resistance of a square steel strip according to claim 2, characterized in that, The fixing block (5) is also provided with a guide block (20) for guiding the square steel strip (11) when it is inserted.

4. The integrated testing device for the length and pressure resistance of a square steel strip according to claim 2, characterized in that, The withstand voltage detection module includes: The right pressure plate assembly includes a first voltage-conducting plate (13) and a second voltage-conducting plate (14), which are located on the outside of the right straight section of the square steel strip (11) and can be driven to move in opposite directions to press the right side of the square steel strip (11). The left pressure plate assembly, including voltage-conducting plate three (15) and voltage-conducting plate four (16), is located on the outside of the straight section on the left side of the square steel strip (11) and can be driven to move in opposite directions to press the left side of the square steel strip (11); The guide (17) is used to form an electrical contact with the end of the square steel strip (11); A high-voltage power supply and a current detection device, wherein the first voltage plate (13), the second voltage plate (14), the third voltage plate (15), and the fourth voltage plate (16) are all electrically connected to the positive terminal of the high-voltage power supply, and the guide head (17) is electrically connected to the negative terminal of the high-voltage power supply and connected to the current detection device.

5. The integrated testing device for the length and pressure resistance of a square steel strip according to claim 4, characterized in that, The right-side pressure plate assembly and the left-side pressure plate assembly are respectively driven by clamping cylinders to achieve clamping and releasing.

6. The integrated testing device for the length and pressure resistance of a square steel strip according to claim 2, characterized in that, The displacement sensor (10) is a grating ruler.

7. The integrated testing device for the length and pressure resistance of a square steel strip according to claim 2, characterized in that, The driving device is a servo motor.

8. The integrated testing device for the length and pressure resistance of a square steel strip according to claim 1, characterized in that, The angle between the inclined platform (2) and the horizontal plane is 60 to 90°.

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