Impact detection device of instrument cabinet

Abstract

The invention provides an impact detection device of an instrument cabinet, and relates to the technical field of instrument cabinet performance detection. A sliding seat is welded to the base, a frame body slides on the sliding seat, and first springs used for enabling the frame body to reset rightwards are symmetrically connected to the frame body in a sleeving mode. A first base block is fixed to the upper end face of the base, a first hydraulic cylinder is fixed to the left end face of the first base block, a mounting rod is fixed to the extending end of the first hydraulic cylinder, a driving block is rotationally arranged on the mounting rod and aligned with the frame body, a worm gear is welded to the driving block, a base body is welded to the mounting rod, a worm is rotationally arranged on the base body, and the worm is meshed with the worm gear. And a motor is fixed on the seat body. The instrument cabinet impact detection device solves the problems that a traditional instrument cabinet impact detection device is single in detection mode, insufficient in detection precision and incapable of simulating detection scenes under different environment conditions, has the advantages of being high in automation degree, wide in detection range and high in detection precision, and is suitable for impact performance and compression resistance detection of various instrument cabinets.

Description

Technical Field

[0001] This invention relates to the field of instrument cabinet performance testing technology, and in particular to an impact testing device for instrument cabinets. Background Technology

[0002] As a storage and placement carrier for various precision instruments and equipment, the structural stability and impact resistance of instrument cabinets are directly related to the safe operation of the internal instruments. Therefore, after the instrument cabinet is manufactured, it is necessary to conduct strict impact performance testing.

[0003] Traditional instrument cabinet impact detection devices have many shortcomings: The testing modes are limited, and most can only perform impact testing with a single force, making it impossible to simultaneously complete the compressive strength test and comprehensively assess the structural strength of the instrument cabinet. Insufficient detection accuracy, lack of precise control and calibration mechanism for impact force, and failure to detect performance degradation of detection components after long-term use lead to reduced reliability of detection results. It cannot simulate detection scenarios under different environmental conditions such as high temperature and low temperature, and the instrument cabinet may face complex environmental changes during actual use. Traditional devices are difficult to meet comprehensive detection needs. The automation level is low, and the detection process requires multiple manual positioning and adjustments, which is cumbersome and inefficient. Summary of the Invention

[0004] This invention relates to an impact detection device for an instrument cabinet, which solves the problems of single detection mode, insufficient detection accuracy, inability to simulate complex environment detection, and low degree of automation.

[0005] This invention provides an impact detection device for an instrument cabinet, specifically comprising: a base; a sliding seat welded to the base, a frame sliding on the sliding seat, and first springs symmetrically sleeved on the frame for resetting the frame to the right; a first base block fixed to the upper end face of the base, a first hydraulic cylinder fixed to the left end face of the first base block, a mounting rod fixed to the extended end of the first hydraulic cylinder, a drive block rotatably mounted on the mounting rod, the drive block being aligned with the frame, a worm gear welded to the drive block, a seat welded to the mounting rod, a worm rotating on the seat, the worm meshing with the worm gear, a motor fixed to the seat, and an output shaft of the motor fixed to the worm.

[0006] Furthermore, an installation mechanism is installed on the base. The installation mechanism consists of a second base block, a second guide rod, a limiting seat, and a second hydraulic cylinder. The second base block is fixed to the upper end face of the base. The second guide rod slides symmetrically on the second base block. The left end face of the second guide rod is welded to the limiting seat. The limiting seat is aligned with the detection head. An instrument cabinet is snapped into the limiting seat. The second hydraulic cylinder is fixed to the left end face of the second base block. The extended end of the second hydraulic cylinder is fixed to the limiting seat.

[0007] Furthermore, the sliding seat, frame, first spring, first base block, first hydraulic cylinder, mounting rod, drive block, worm gear, seat, worm and motor constitute the detection mechanism; a first guide rod is symmetrically welded on the frame, and a detection head slides on the first guide rod, the detection head passing through the frame.

[0008] Furthermore, a second spring for rightward reset of the detection head is sleeved on the first guide rod, and a fixing screw rotates on the detection head, which is fixed to the frame by the fixing screw; a scale is fixed on the frame, and the scale slides on the detection head.

[0009] Furthermore, the first guide rod, the detection head, the second spring, the fixing screw, and the scale together form a calibration mechanism. A mounting bracket is fixed on the upper end face of the base, and a third guide rod slides symmetrically on the mounting bracket. The lower end of each third guide rod is welded to the cover. The cover covers the outside of the detection mechanism, the calibration mechanism, and the mounting mechanism. A third hydraulic cylinder is fixed on the mounting bracket, and the extended end of the third hydraulic cylinder is fixed to the cover.

[0010] Furthermore, a heating element is installed inside the enclosure, and the heating element is electrically connected to an external power supply.

[0011] Furthermore, the cover is symmetrically welded with connecting pipes, and valves are installed on the connecting pipes. The connecting pipes are connected to the external cold air supply pipes.

[0012] Furthermore, the mounting bracket, the third guide rod, the cover, the connecting pipe, the heating pipe, and the third hydraulic cylinder together form an auxiliary mechanism; a sealing groove is provided on the upper surface of the base, the sealing groove has a U-shaped structure, the sealing groove is aligned with the cover, and is in an inserted state with the sealing groove after the cover is closed.

[0013] Furthermore, an auxiliary plate is inlaid on the top surface of the base, the upper surface of the auxiliary plate is in contact with the bottom surface of the instrument cabinet, and the upper surface of the auxiliary plate is polished.

[0014] Furthermore, a control box is fixed on the base, and a microprocessor is installed inside the control box. The microprocessor is electrically connected to the first hydraulic cylinder, the motor, the second hydraulic cylinder, the heating tube, and the third hydraulic cylinder.

[0015] This invention provides an impact detection device for an instrument cabinet, which has the following beneficial effects: This application, through the collaborative efforts of testing and calibration agencies, enables both impact testing and compression testing, effectively expanding the testing scope. During impact testing, the first hydraulic cylinder drives the drive block to move, compressing the frame and storing force in the first spring. The motor drives the drive block to rotate via a worm gear transmission. After releasing the restriction on the frame, the frame moves rapidly under the elastic force of the first spring, completing the impact test through the testing head. During compression testing, the drive block is adjusted to limit the frame, and the second hydraulic cylinder drives the instrument cabinet to move the compression testing head, achieving compression performance testing and meeting the multi-dimensional performance evaluation needs of the instrument cabinet.

[0016] This application features a dedicated calibration mechanism that allows for direct observation of the detection head's displacement via a scale. This enables timely detection of spring force attenuation in the first spring, facilitating timely replacement and ensuring the accuracy of the impact force. Simultaneously, the auxiliary plate on the top surface of the base is polished, effectively reducing the frictional resistance of the instrument cabinet during the extrusion testing process and guaranteeing the reliability of the extrusion test data. The installation mechanism, through the cooperation of the second hydraulic cylinder and the second guide rod, can precisely fix the instrument cabinet, preventing displacement during the testing process and further improving testing accuracy.

[0017] The cover in the auxiliary mechanism of this application is inserted into the sealing groove on the base to form a sealed space. High temperature environment simulation can be achieved through the heating tube, and low temperature environment simulation can be achieved by connecting cold air through the connecting pipe. It can simulate the impact and pressure resistance of the instrument cabinet under different temperature environments, making the test results more consistent with the actual use scenario and providing more comprehensive data support for the quality assessment of the instrument cabinet.

[0018] This application, through the electrical connection between the microprocessor in the control box and each actuator, can automatically control the extension and retraction of the first, second, and third hydraulic cylinders, as well as the start and stop of the motor and the on and off of the heating tube, to realize the automated operation of the testing process. It eliminates the need for frequent manual intervention, greatly reduces the difficulty of operation, improves the testing efficiency, and is suitable for batch instrument cabinet testing. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0020] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0021] In the attached diagram: Figure 1 A perspective view of the impact detection device for the instrument cabinet of the present invention is shown; Figure 2 A front view of the impact detection device of the instrument cabinet of the present invention is shown; Figure 3A perspective view of the impact detection device of the instrument cabinet of the present invention, after partial cross-section, is shown. Figure 4 The present invention is shown. Figure 3 Rotated 3D image; Figure 5 The present invention is shown. Figure 4 The adjusted 3D image; Figure 6 A perspective view of the testing mechanism and calibration mechanism of the present invention is shown; Figure 7 A perspective view of the mounting mechanism of the present invention is shown; Figure 8 A system configuration diagram of the present invention is shown.

[0022] List of reference numerals 1. Base; 101. Auxiliary plate; 102. Sealing groove; 2. Detection mechanism; 201. Sliding seat; 202. Frame; 203. First spring; 204. First base block; 205. First hydraulic cylinder; 206. Mounting rod; 207. Drive block; 208. Worm gear; 209. Seat; 210. Worm; 211. Motor; 3. Calibration mechanism; 301. First guide rod; 302. Detection head; 303. Second spring; 304. Fixing screw; 305. Scale; 4. Mounting mechanism; 401. Second base block; 402. Second guide rod; 403. Limiting seat; 404. Second hydraulic cylinder; 5. Auxiliary mechanism; 501. Mounting frame; 502. Third guide rod; 503. Cover; 504. Connecting pipe; 505. Heating pipe; 506. Third hydraulic cylinder; 6. Control box; 601. Microprocessor. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1: Please refer to Figures 1 to 8 : This invention proposes an impact detection device for an instrument cabinet, comprising: a base 1; a sliding seat 201 welded to the base 1, a frame 202 sliding on the sliding seat 201, and first springs 203 symmetrically sleeved on the frame 202 for resetting the frame 202 to the right; a first base block 204 fixed to the upper end face of the base 1, a first hydraulic cylinder 205 fixed to the left end face of the first base block 204, a mounting rod 206 fixed to the extended end of the first hydraulic cylinder 205, a driving block 207 rotatably mounted on the mounting rod 206, the driving block 207 being aligned with the frame 202, a worm gear 208 welded to the driving block 207, and a seat 209 welded to the mounting rod 206, the seat 209 rotating... There is a worm gear 210, which meshes with a worm wheel 208. A motor 211 is fixed on the base 209, and the output shaft of the motor 211 is fixed on the worm gear 210. During the test, the first hydraulic cylinder 205 is extended, which drives the drive block 207 to move to the left. The drive block 207 can drive the frame 202 to move to the left, compressing the first spring 203 to store force, driving the motor 211 to rotate. Under the meshing transmission of the worm gear 210 and the worm wheel 208, the drive block 207 can be rotated. When the drive block 207 rotates to a horizontal state, the frame 202 is released from its restriction and moves quickly to the right, passing through the detection head 302 for impact detection.

[0025] The base 1 is equipped with an installation mechanism 4, which consists of a second base block 401, a second guide rod 402, a limiting seat 403, and a second hydraulic cylinder 404. The second base block 401 is fixed to the upper surface of the base 1. The second guide rod 402 slides symmetrically on the second base block 401. The left end face of the second guide rod 402 is welded to the limiting seat 403. The limiting seat 403 is aligned with the detection head 302. An instrument cabinet is snapped into the limiting seat 403. The second hydraulic cylinder 404 is fixed to the left end face of the second base block 401. The extended end of the second hydraulic cylinder 404 is fixed to the limiting seat 403. During the test, the instrument cabinet is placed in the limiting seat 403. The limiting seat 403 ensures the stability of the instrument cabinet during impact testing.

[0026] The sliding seat 201, frame 202, first spring 203, first base block 204, first hydraulic cylinder 205, mounting rod 206, drive block 207, worm gear 208, seat 209, worm 210 and motor 211 constitute the detection mechanism 2; the frame 202 is symmetrically welded with a first guide rod 301, and a detection head 302 slides on the first guide rod 301, and the detection head 302 passes through the frame 202.

[0027] The first guide rod 301 is fitted with a second spring 303 for rightward reset of the detection head 302. A fixing screw 304 rotates on the detection head 302, which is fixed to the frame 202 via the fixing screw 304. A scale 305 is fixed on the frame 202 and slides on the detection head 302. When detecting the spring force of the first spring 203, the first hydraulic cylinder 205 is extended, driving the drive block 207 to move to the left. The drive block 207 can then move the frame 202 to the left, compressing the first spring 203 to store force. Then, the fixing screw 304 is unscrewed, driving the second hydraulic cylinder 404 to extend to the left to ensure the limit seat 403 is within the impact range of the detection head 302. The drive motor 211... The rotation of the drive block 207 is achieved through the meshing transmission of the worm gear 210 and the worm wheel 208. When the drive block 207 rotates to a horizontal position, the frame 202 is released from its restriction and moves quickly to the right. At this time, the detection head 302 strikes the limit seat 403. After the impact, the corresponding scale on the scale 305 of the detection head 302 is observed to determine whether the elastic force of the first spring 203 has decreased. If it has decreased, the first spring 203 needs to be replaced to ensure the detection accuracy. When performing the compression detection, the drive block 207 is adjusted to the left side of the frame 202 to limit the leftward movement of the frame 202. This drives the second hydraulic cylinder 404 to extend, and the second hydraulic cylinder 404 moves the instrument cabinet to the left, enabling the compression detection head 302 to perform compression detection and expanding the detection range.

[0028] The first guide rod 301, the detection head 302, the second spring 303, the fixing screw 304, and the scale 305 together form the calibration mechanism 3. The upper end face of the base 1 is fixed with a mounting bracket 501. The third guide rod 502 slides symmetrically on the mounting bracket 501. The lower end of the third guide rod 502 is welded to the cover 503. The cover 503 covers the outside of the detection mechanism 2, the calibration mechanism 3, and the mounting mechanism 4. The third hydraulic cylinder 506 is fixed on the mounting bracket 501. The extended end of the third hydraulic cylinder 506 is fixed on the cover 503.

[0029] The cover 503 contains a heating tube 505, which is electrically connected to an external power source. During use, when the power to the heating tube 505 is turned on, the heating tube 505 dissipates heat to enable detection at high temperatures.

[0030] The enclosure 503 is symmetrically welded with connecting pipes 504, which are equipped with valves. The connecting pipes 504 are connected to the external cold air supply pipes. When the valves on the connecting pipes 504 are opened, cold air enters the enclosure 503, enabling detection at low temperatures.

[0031] The auxiliary mechanism 5 is composed of the mounting bracket 501, the third guide rod 502, the cover 503, the connecting pipe 504, the heating pipe 505, and the third hydraulic cylinder 506. A sealing groove 102 is provided on the upper end face of the base 1. The sealing groove 102 has a U-shaped structure. The sealing groove 102 is aligned with the cover 503. After the cover 503 is closed, it is inserted into the sealing groove 102. The insertion of the cover 503 into the sealing groove 102 can improve the sealing performance and reduce the probability of hot or cold air leakage.

[0032] The base 1 has an auxiliary plate 101 embedded on its top surface. The upper surface of the auxiliary plate 101 contacts the bottom surface of the instrument cabinet. The upper surface of the auxiliary plate 101 is polished. During the testing process, the auxiliary plate 101 can reduce the frictional resistance of the instrument cabinet and ensure the accuracy of the extrusion test.

[0033] Example 2, based on Example 1, such as Figures 1-8 As shown, a control box 6 is fixed on the base 1. A microprocessor 601 is installed inside the control box 6. The microprocessor 601 is electrically connected to the first hydraulic cylinder 205, the motor 211, the second hydraulic cylinder 404, the heating tube 505, and the third hydraulic cylinder 506. During use, the microprocessor 601 can drive the first hydraulic cylinder 205, the motor 211, the second hydraulic cylinder 404, the heating tube 505, and the third hydraulic cylinder 506 to work, thereby improving the degree of automation.

[0034] The working principle of this embodiment is as follows: During routine impact testing, the instrument cabinet to be tested is first placed inside the limiting seat 403. The microprocessor 601 controls the extension of the second hydraulic cylinder 404, which moves the limiting seat 403 to a preset position aligned with the detection head 302, thus fixing the instrument cabinet. Next, the third hydraulic cylinder 506 is controlled to retract, which raises the cover 503, exposing the detection area. Subsequently, the first hydraulic cylinder 205 is controlled to extend, pushing the mounting rod 206 and the drive block 207 to the left. The drive block 207 then moves the frame... Body 202 slides to the left along sliding seat 201, compressing the first spring 203 to store force until the preset storage stroke is reached; then control motor 211 starts, motor 211 drives worm 210 to rotate, through the meshing transmission of worm 210 and worm wheel 208, drive block 207 to rotate to a horizontal state, release the restriction on frame 202, frame 202 moves quickly to the right under the elastic force of the first spring 203, detection head 302 hits instrument cabinet to complete impact detection, and records the force response and damage of instrument cabinet; During the compression test, the microprocessor 601 controls the motor 211 to reverse, and the drive block 207 rotates to a vertical position, forming a left limit on the frame 202. After the instrument cabinet is fixed in the limit seat 403, the second hydraulic cylinder 404 is controlled to extend continuously, driving the instrument cabinet to move to the left. The instrument cabinet contacts the detection head 302 and is continuously compressed. The detection head 302 slides to the left along the first guide rod 301 and compresses the second spring 303. By observing the displacement change of the detection head 302 on the scale 305 and combining it with the preset pressure standard, the compression resistance of the instrument cabinet is evaluated. When conducting tests under high and low temperature environments, first fix the instrument cabinet on the limit seat 403, control the extension of the third hydraulic cylinder 506 to drive the cover 503 to descend and insert into the sealing groove 102 on the base 1 to form a sealed space; if conducting high temperature tests, turn on the power supply of the heating tube 505, and after the temperature inside the cover 503 reaches the preset high temperature value and stabilizes, operate according to the conventional impact test or compression test steps; if conducting low temperature tests, open the valve on the connecting pipe 504 to introduce cold air, and after the temperature inside the cover 503 reaches the preset low temperature value and stabilizes, execute the corresponding test steps to complete the performance test under different environmental conditions; During the testing process, if it is necessary to calibrate the elasticity of the first spring 203, the fixing screw 304 can be unscrewed. After the impact test is performed, the frame 202 is released. Then, the final position of the test head 302 on the scale 305 after impacting the limit seat 403 is observed. The position is compared with the standard position to determine whether the elasticity has decreased. If it has decreased, the first spring 203 should be replaced in time to ensure the accuracy of subsequent tests.

Claims

1. An impact detection device for an instrument cabinet, characterized in that, include: A base (1); a sliding seat (201) is welded onto the base (1), a frame (202) slides on the sliding seat (201), and a first spring (203) for resetting the frame (202) to the right is symmetrically sleeved on the frame (202); a first base block (204) is fixed to the upper end face of the base (1), a first hydraulic cylinder (205) is fixed to the left end face of the first base block (204), and an installation rod (206) is fixed to the extended end of the first hydraulic cylinder (205) for installation. A drive block (207) rotates on the rod (206). The drive block (207) is aligned with the frame (202). A worm gear (208) is welded on the drive block (207). A seat (209) is welded on the mounting rod (206). A worm (210) rotates on the seat (209). The worm (210) meshes with the worm gear (208). A motor (211) is fixed on the seat (209). The output shaft of the motor (211) is fixed on the worm (210).

2. The impact detection device for an instrument cabinet according to claim 1, characterized in that, The base (1) is equipped with an installation mechanism (4). The installation mechanism (4) consists of a second base block (401), a second guide rod (402), a limit seat (403), and a second hydraulic cylinder (404). The second base block (401) is fixed to the upper end face of the base (1). The second guide rod (402) slides symmetrically on the second base block (401). The left end face of the second guide rod (402) is welded to the limit seat (403). The limit seat (403) is aligned with the detection head (302). An instrument cabinet is snapped into the limit seat (403). The left end face of the second base block (401) is fixed with the second hydraulic cylinder (404). The extended end of the second hydraulic cylinder (404) is fixed to the limit seat (403).

3. The impact detection device for an instrument cabinet according to claim 2, characterized in that, The sliding seat (201), frame (202), first spring (203), first base block (204), first hydraulic cylinder (205), mounting rod (206), drive block (207), worm gear (208), seat (209), worm (210) and motor (211) constitute the detection mechanism (2); the frame (202) is symmetrically welded with a first guide rod (301), and a detection head (302) slides on the first guide rod (301) and passes through the frame (202).

4. The impact detection device for an instrument cabinet according to claim 3, characterized in that, The first guide rod (301) is fitted with a second spring (303) for resetting the detection head (302) to the right. A fixing screw (304) rotates on the detection head (302), and the detection head (302) is fixed on the frame (202) by the fixing screw (304). A scale (305) is fixed on the frame (202), and the scale (305) slides on the detection head (302).

5. The impact detection device for an instrument cabinet according to claim 4, characterized in that, The first guide rod (301), the detection head (302), the second spring (303), the fixing screw (304) and the scale (305) together form the calibration mechanism (3). The upper end of the base (1) is fixed with a mounting bracket (501). The mounting bracket (501) is symmetrically slidable with a third guide rod (502). The lower end of the third guide rod (502) is welded to the cover (503). The cover (503) covers the outside of the detection mechanism (2), the calibration mechanism (3) and the mounting mechanism (4). The mounting bracket (501) is fixed with a third hydraulic cylinder (506). The extended end of the third hydraulic cylinder (506) is fixed to the cover (503).

6. The impact detection device for an instrument cabinet according to claim 5, characterized in that, A heating tube (505) is installed inside the cover (503), and the heating tube (505) is electrically connected to an external power supply.

7. The impact detection device for an instrument cabinet according to claim 6, characterized in that, The cover (503) is symmetrically welded with connecting pipes (504), and valves are installed on the connecting pipes (504). The connecting pipes (504) are connected to the external cold air supply pipes.

8. The impact detection device for an instrument cabinet according to claim 7, characterized in that, The mounting bracket (501), the third guide rod (502), the cover (503), the connecting pipe (504), the heating pipe (505), and the third hydraulic cylinder (506) together form the auxiliary mechanism (5); a sealing groove (102) is provided on the upper surface of the base (1). The sealing groove (102) has a U-shaped structure. The sealing groove (102) is aligned with the cover (503). After the cover (503) is closed, it is in an inserted state with the sealing groove (102).

9. The impact detection device for an instrument cabinet according to claim 8, characterized in that, The top surface of the base (1) is inlaid with an auxiliary plate (101), the upper surface of the auxiliary plate (101) is in contact with the bottom surface of the instrument cabinet, and the upper surface of the auxiliary plate (101) is polished.

10. The impact detection device for an instrument cabinet according to claim 9, characterized in that, A control box (6) is fixed on the base (1). A microprocessor (601) is installed inside the control box (6). The microprocessor (601) is electrically connected to the first hydraulic cylinder (205), the motor (211), the second hydraulic cylinder (404), the heating tube (505), and the third hydraulic cylinder (506).

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