Overpressure detection device for belleville spring

Abstract

The invention provides a belleville spring overpressure detection device which comprises a supporting plate, and hydraulic cylinders are supported on the left side and the right side of the surface of the supporting plate through bolts. A first limiting column and a second limiting column are welded to the left part and the right part of the lower portion of the supporting plate correspondingly. A PLC (Programmable Logic Controller) is arranged in front of the hydraulic cylinder and is in bolted connection with the supporting plate; the bottoms of the first limiting column and the second limiting column are connected with a positioning placement table structure; the outer wall of the first limiting column and the outer wall of the second limiting column are connected with a movable measuring seat structure, and the device is characterized in that the movable measuring seat structure comprises a lifting seat, and the left side and the right side in the lifting seat are respectively provided with a guide hole; pressure sensors are connected to the periphery in the lifting seat through bolts, and a detection table is connected to the ends of the pressure sensors through bolts. And an infrared distance measuring sensor is in bolted connection with the surface in the detection table. According to the invention, the arrangement of the movable measuring seat structure does not contact the belleville spring for detection, thereby preventing the belleville spring from being pressed down for detection, and preventing the detection precision from being affected.

Description

Technical Field

[0001] The invention belongs to the technical field of butterfly spring overpressure detection, and in particular relates to a butterfly spring overpressure detection device. Background Art

[0002] The butterfly spring overpressure test is a test device specially used to test the performance and safety of butterfly springs under overload conditions. The device realizes the overpressure detection function by applying pressure to the butterfly spring for a long time and then measuring its reset condition. However, during the measurement process, the butterfly spring will be pressed down, which affects the measurement accuracy and is inconvenient to limit butterfly springs of different sizes, thus affecting the detection work. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a butterfly spring overpressure detection device, which realizes the function of precise measurement during the detection process, avoids the impact of pressing down the butterfly spring on the detection accuracy, and adsorbs and fixes the butterfly spring, so as to cooperate with butterfly springs of different sizes for detection.

[0004] The technical solution is as follows: a device for detecting overpressure of butterfly springs, comprising a support plate, with hydraulic cylinders bolted on the left and right sides of the support plate surface; a first limiting column and a second limiting column are welded on the left and right parts of the lower part of the support plate respectively; a PLC is arranged in front of the hydraulic cylinder, and the PLC is bolted to the support plate; a positioning placement table structure is connected to the bottom of the first limiting column and the second limiting column; a movable measuring seat structure is connected to the outer walls of the first limiting column and the second limiting column, and is characterized in that the movable measuring seat structure comprises a lifting seat, and guide holes are respectively opened on the left and right sides of the lifting seat; a pressure sensor is bolted on all sides of the lifting seat, and a detection platform is bolted on the end of the pressure sensor; an infrared ranging sensor is bolted on the surface inside the detection platform; corresponding holes are opened on the detection platform and the middle part of the lifting seat.

[0005] Preferably, the guide holes on the left and right sides of the lifting seat are respectively inserted and connected to the first limiting column and the second limiting column.

[0006] Preferably, a plurality of pressure sensors are provided and fixed in the lifting seat in cooperation with the detection platform.

[0007] Compared with the prior art, the present invention has the following beneficial effects:

[0008] In the present invention, the infrared distance measuring sensor is arranged so as not to contact the butterfly spring for detection, thereby avoiding the influence of detection accuracy by pressing down the butterfly spring for detection.

[0009] In the present invention, the arrangement of the pressure sensor and the detection platform displays the pressure applied to the butterfly spring, thereby enabling precise control and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the present invention.

[0011] Figure 2 It is a structural schematic diagram of the movable measuring seat structure of the present invention.

[0012] Figure 3 It is a schematic diagram of the bottom structure of the movable measuring seat structure of the present invention.

[0013] Figure 4 It is a structural schematic diagram of the positioning and placing table structure of the present invention.

[0014] Figure 5 It is a structural schematic diagram of the movable lifting column structure of the present invention.

[0015] In the figure:

[0016] 1. Support plate; 2. Hydraulic cylinder; 3. PLC; 4. First limiting column; 5. Second limiting column; 6. Movable measuring seat structure; 61. Lifting seat; 62. Guide hole; 63. Pressure sensor; 64. Testing table; 65. Infrared ranging sensor; 66. Corresponding hole; 7. Positioning and placing table structure; 71. Hollow table; 72. Support table; 73. Electromagnetic suction cup; 74. Movable lifting column structure; 741. Working electric cylinder; 742. Output shaft; 743. Limiting column. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings:

[0018] Example:

[0019] As attached Figure 1 As shown, a device for detecting overpressure of butterfly springs comprises a support plate 1, and a hydraulic cylinder 2 is bolted to the left and right sides of the surface of the support plate 1; a first limiting column 4 and a second limiting column 5 are welded to the left and right parts of the lower part of the support plate 1 respectively; a PLC 3 is arranged in front of the hydraulic cylinder 2, and the PLC 3 is bolted to the support plate 1; a positioning and placing table structure 7 is connected to the bottom of the first limiting column 4 and the second limiting column 5; and a movable measuring seat structure 6 is connected to the outer walls of the first limiting column 4 and the second limiting column 5.

[0020] As attached Figure 2 and attached Figure 3As shown, in the above embodiment, specifically, the movable measuring seat structure 6 includes a lifting seat 61, and guide holes 62 are respectively opened on the left and right sides of the lifting seat 61; the pressure sensor 63 is bolted around the inside of the lifting seat 61, and the detection platform 64 is bolted at the end of the pressure sensor 63; the surface of the detection platform 64 is bolted to the infrared ranging sensor 65; the detection platform 64 and the middle part of the lifting seat 61 are both provided with corresponding holes 66; the hydraulic cylinder 2 is driven to drive the lifting seat 61 to descend so that the detection platform 64 contacts the butterfly spring to apply pressure under the detection pressure of the pressure sensor 63.

[0021] As attached Figure 4 As shown, in the above embodiment, specifically, the positioning and placing table structure 7 includes a hollow table 71, and a support 72 is welded on the upper end of the hollow table 71; electromagnetic suction cups 73 are bolted on all four sides of the inside of the support 72; a movable lifting column structure 74 is connected to the middle part of the support 72 and the hollow table 71; a butterfly spring is placed on the support 72 and sleeved on the outer side of the positioning column 743, and after the placement is completed, the electromagnetic suction cup 73 is driven to adsorb and position.

[0022] As attached Figure 5 As shown, in the above embodiment, specifically, the movable lifting column structure 74 includes a working electric cylinder 741, an output shaft 742 is arranged inside the working electric cylinder 741; a positioning column 743 is bolted to the end of the output shaft 742; the working electric cylinder 741 is driven to make the output shaft 742 and the positioning column 743 descend and retract.

[0023] In the above embodiment, specifically, the guide holes 62 on the left and right sides of the lifting seat 61 are respectively inserted and connected to the first limiting column 4 and the second limiting column 5.

[0024] In the above embodiment, specifically, a plurality of pressure sensors 63 are provided, and are fixed in the lifting seat 61 together with the detection platform 64 .

[0025] In the above embodiment, specifically, the corresponding hole 66 and the positioning column 743 are arranged correspondingly.

[0026] In the above embodiment, specifically, the infrared distance measuring sensor 65 is arranged on one side of the corresponding hole 66 and is arranged corresponding to the support platform 72 .

[0027] In the above embodiment, specifically, the left and right sides of the upper end of the hollow platform 71 are respectively connected with the first limiting column 4 and the second limiting column 5 by bolts.

[0028] In the above embodiment, specifically, a plurality of electromagnetic suction cups 73 are provided inside the support 72 and are distributed around the positioning column 743 to absorb and position butterfly springs of different heights and sizes.

[0029] In the above embodiment, specifically, the working electric cylinder 741 is bolted into the hollow platform 71, and the output shaft 742 and the positioning column 743 on the working electric cylinder 741 are inserted into the support platform 72 to position the butterfly spring so as to be used at the corresponding detection location.

[0030] In the above embodiment, specifically, the pressure sensor 63, the infrared distance sensor 65, the electromagnetic suction cup 73 and the working cylinder 741 are all electrically connected to the PLC3, and the PLC3 is electrically connected to the computer.

[0031] How it works

[0032] In the present invention, when the butterfly spring is tested for overpressure, the butterfly spring is placed on the support 72 and sleeved on the outer side of the positioning column 743. After the placement is completed, the electromagnetic suction cup 73 is driven to adsorb and drive the working electric cylinder 741 to make the output shaft 742 and the positioning column 743 descend and retract. After the butterfly spring is fixed, the infrared distance sensor 65 works to measure the length of the butterfly spring. Then, in conjunction with PLC3 and the connected computer, the original distance between the support 72 and the lifting seat 61 is subtracted to obtain the length of the butterfly spring. After preliminary measurement, the hydraulic cylinder 2 is driven to drive the lifting seat 61 to descend so that the detection platform 64 contacts the butterfly spring and applies pressure under the detection pressure of the pressure sensor 63. After the pressure reaches a certain pressure or time, the lifting seat 61 is reset, so that the infrared distance sensor 65 can be driven again to detect whether the distance between the butterfly spring and the butterfly spring changes, thereby completing the overpressure detection.

[0033] Utilizing the technical solution described in the present invention, or those skilled in the art designing a similar technical solution inspired by the technical solution of the present invention to achieve the above-mentioned technical effects, all fall within the protection scope of the present invention.

Claims

1. A butterfly spring overpressure detection device, the butterfly spring overpressure detection device comprising a support plate (1), the left and right sides of the support plate (1) surface are respectively bolted with a hydraulic cylinder (2); the left and right parts of the lower part of the support plate (1) are respectively welded with a first limiting column (4) and a second limiting column (5); a PLC (3) is arranged in front of the hydraulic cylinder (2), and the PLC (3) is bolted to the support plate (1); the bottoms of the first limiting column (4) and the second limiting column (5) are connected to a positioning and placing table structure (7); the outer walls of the first limiting column (4) and the second limiting column (5) are connected to a movable measuring seat structure (6), characterized in that: The movable measuring seat structure (6) comprises a lifting seat (61), and guide holes (62) are respectively provided on the left and right sides of the lifting seat (61); a pressure sensor (63) is bolted to the four sides of the lifting seat (61), and a detection platform (64) is bolted to the end of the pressure sensor (63); an infrared distance sensor (65) is bolted to the surface of the detection platform (64); and corresponding holes (66) are provided in the middle of the detection platform (64) and the lifting seat (61).

2. The butterfly spring overpressure detection device according to claim 1, characterized in that: The positioning and placing platform structure (7) comprises a hollow platform (71), the upper end of which is welded with a support platform (72); electromagnetic suction cups (73) are bolted around the inside of the support platform (72); and a movable lifting column structure (74) is connected between the support platform (72) and the hollow platform (71).

3. The butterfly spring overpressure detection device according to claim 2, characterized in that: The movable lifting column structure (74) comprises a working electric cylinder (741), an output shaft (742) is arranged inside the working electric cylinder (741); a positioning column (743) is bolted to the end of the output shaft (742).

4. The overpressure detection device for butterfly springs according to claim 1, characterized in that: The guide holes (62) on the left and right sides of the lifting seat (61) are respectively inserted and connected to the first limiting column (4) and the second limiting column (5).

5. The butterfly spring overpressure detection device according to claim 1, characterized in that: The pressure sensors (63) are provided in plurality and are fixed in the lifting seat (61) in cooperation with the detection platform (64). The corresponding holes (66) and the positioning columns (743) are provided correspondingly.

6. The butterfly spring overpressure detection device according to claim 1, characterized in that: The infrared distance measuring sensor (65) is arranged on one side of the corresponding hole (66) and is arranged corresponding to the support platform (72).

7. The overpressure detection device for butterfly springs according to claim 2, characterized in that: The left and right sides of the upper end of the hollow platform (71) are respectively connected to the first limiting column (4) and the second limiting column (5) by bolts.

8. The butterfly spring overpressure detection device according to claim 2, characterized in that: A plurality of electromagnetic suction cups (73) are provided inside the support platform (72) and are distributed around the positioning column (743).

9. The butterfly spring overpressure detection device according to claim 3, characterized in that: The working electric cylinder (741) is bolted into the hollow platform (71), and the output shaft (742) and the positioning column (743) on the working electric cylinder (741) are inserted into the support platform (72).

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