An aging test device for measuring tools

Abstract

The present invention discloses a performance aging test device for measuring tools. The test platform is arranged above the water tank. The lead screw motor is fixedly connected to the test platform. The lead screw on the lead screw motor is in threaded cooperation with the mounting plate. The mounting plate is fixedly connected to the moving push rod. The linear guide rail is fixedly connected to the test platform. The moving push rod is slidably connected to the linear guide rail. The test sample is installed on the test platform, and one end of the test sample is arranged on the moving push rod. The motor water pump is arranged on one side of the water tank, and the water inlet end of the motor water pump is communicated with the water tank. The water outlet end of the motor water pump is communicated with a water pipe. The water spray nozzle is movably connected to the water pipe. Through the above structural arrangement, the performance aging test device for measuring tools can perform a performance aging test for measuring tools that can perform a waterproof test while performing a reciprocating tensile test.

Description

Technical Field

[0001] The present invention relates to the technical field of measuring tools and measuring instruments, and particularly relates to a performance aging test device for measuring tools. Background Art

[0002] Measuring tools and instruments often need to use a performance aging test device for performance aging tests. However, the existing performance aging test devices for measuring tools only test reciprocating tensile tests. After the tensile test is completed, a single waterproof test is carried out, and the waterproof test cannot be carried out simultaneously during the tensile test. However, if the waterproof test is not carried out under dynamic conditions, the aging time of the product will be prolonged, and the actual use conditions cannot be better simulated. Therefore, it is quite necessary to develop a performance aging test device for measuring tools that can carry out a waterproof test simultaneously during the reciprocating tensile test. Summary of the Invention

[0003] The purpose of the present invention is to provide a performance aging test device for measuring tools that can carry out a waterproof test simultaneously during the reciprocating tensile test.

[0004] To achieve the above purpose, a performance aging test device for measuring tools adopted by the present invention includes a water tank, a test platform, a lead screw motor, a mounting plate, a fixing plate, a moving push rod, a linear guide rail, a test sample, a motor water pump, a water spray nozzle, and a motor control board. The test platform is arranged above the water tank. The lead screw motor is fixedly connected to the test platform. The fixing plate is fixedly connected to the test platform. The lead screw on the lead screw motor passes through the mounting plate and is rotatably connected to the fixing plate. The lead screw on the lead screw motor is in threaded cooperation with the mounting plate. The mounting plate is fixedly connected to the moving push rod. The linear guide rail is fixedly connected to the test platform and is located above the test platform. The number of the linear guide rails is multiple, and the multiple linear guide rails are equidistantly distributed. The moving push rod is slidably connected to the linear guide rail. The test sample is mounted on the test platform, and one end of the test sample is arranged on the moving push rod. The motor water pump is arranged on one side of the water tank, and the water inlet end of the motor water pump is communicated with the water tank. The water outlet end of the motor water pump is communicated with a water pipe. The water spray nozzle is movably connected to the water pipe and is located above the test sample. The motor control board is arranged on one side of the water tank and is electrically connected to the lead screw motor and the motor water pump respectively.

[0005] Among them, the performance aging test equipment for measuring tools further includes a sample fixed-end assembly, which includes a sample clamping fixed-end upper plate and a sample clamping fixed-end lower plate. The sample clamping fixed-end upper plate is connected to the test platform by bolts, and the sample clamping fixed-end upper plate abuts against the test sample. The sample clamping fixed-end lower plate is connected to the test platform by bolts, and the sample clamping fixed-end lower plate abuts against the test sample.

[0006] Among them, waist holes are provided on both the sample clamping fixed-end upper plate and the sample clamping fixed-end lower plate.

[0007] Among them, the performance aging test equipment for measuring tools further includes a sample movable-end assembly, which includes a sample clamping movable-end clamping plate and a sample clamping movable-end limiting post. The sample clamping movable-end clamping plate is connected to the moving push rod by bolts, and the sample clamping movable-end clamping plate abuts against one end of the test sample. The sample clamping movable-end limiting post is threadedly connected to the moving push rod, and one end of the sample clamping movable-end limiting post penetrates through the moving push rod and abuts against one end of the test sample.

[0008] Among them, the performance aging test equipment for measuring tools further includes a counting display screen, which is fixedly connected to the water tank and is located on one side of the water tank, and the counting display screen is electrically connected to the motor control board.

[0009] Among them, chamfers are provided at each bottom corner of the test platform.

[0010] The beneficial effects of the present invention are reflected in that: when the lead screw motor rotates clockwise, since the lead screw on the lead screw motor is in threaded engagement with the mounting plate, the mounting plate then moves along the lead screw of the lead screw motor towards the end away from the fixed plate. As the mounting plate moves, it drives the moving push rod to slide along the linear slide rail towards the direction away from the fixed plate. The end of the moving push rod abuts against one end of the test sample, causing one end of the test sample to contract. Then, when the lead screw motor rotates counterclockwise, the mounting plate moves along the lead screw of the lead screw motor towards the end close to the fixed plate. As the mounting plate moves, it drives the moving push rod to slide along the linear slide rail towards the direction close to the fixed plate. The moving push rod stretches one end of the test sample, causing one end of the test sample to elongate. In this way, the reciprocating tensile test of the test sample is realized. While performing the reciprocating tensile test, the motor water pump operates to pump the water in the water tank. The water flows through the water pipe and is sprayed out from the spray nozzle to perform a water spraying treatment on the test sample and conduct a waterproof test on the test sample. Therefore, the performance aging test equipment for measuring tools can perform a waterproof test on the measuring tools while performing a reciprocating tensile test. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0012] Figure 1 It is a schematic structural diagram of the performance aging test equipment for measuring tools of the present invention.

[0013] Figure 2 It is an assembly drawing of the sample fixed end assembly of the present invention.

[0014] Figure 3 It is an assembly drawing of the sample movable end assembly of the present invention.

[0015] Figure 4 It is a power supply logic diagram of the performance aging test equipment for measuring tools of the present invention.

[0016] 1 - Water spray nozzle, 2 - Test platform, 3 - Lead screw motor, 4 - Water tank, 5 - Test sample, 6 - Moving push rod, 7 - Linear guide rail, 8 - Motor water pump, 9 - Counting display screen, 10 - Motor control board, 11 - Upper plate of sample clamping and fixing end, 12 - Lower plate of sample clamping and fixing end, 13 - Clamping plate of sample clamping movable end, 14 - Limit post of sample clamping movable end, 15 - Mounting plate, 16 - Fixed plate, 17 - Slotted hole, 18 - Chamfer, 19 - First support, 20 - First connecting plate, 21 - Supporting plate, 22 - Second support, 23 - Second connecting plate, 24 - Cross bar, 25 - Through hole. Detailed implementation manners

[0017] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0018] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, in the description of the present invention, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0019] Please refer to Figures 1 to 4, the present invention provides a performance aging test device for measuring tools, including a water tank 4, a test platform 2, a lead screw motor 3, a mounting plate 15, a fixing plate 16, a moving push rod 6, a linear guide rail 7, a test sample 5, a motor water pump 8, a water spray nozzle 1 and a motor control board 10. The test platform 2 is arranged above the water tank 4. The lead screw motor 3 is fixedly connected to the test platform 2. The fixing plate 16 is fixedly connected to the test platform 2. The lead screw on the lead screw motor 3 penetrates through the mounting plate 15 and is rotatably connected to the fixing plate 16. The lead screw on the lead screw motor 3 is in threaded cooperation with the mounting plate 15. The mounting plate 15 is fixedly connected to the moving push rod 6. The linear guide rail 7 is fixedly connected to the test platform 2 and is located above the test platform 2. The number of the linear guide rails 7 is multiple, and the multiple linear guide rails 7 are equidistantly distributed. The moving push rod 6 is slidably connected to the linear guide rail 7. The test sample 5 is mounted on the test platform 2, and one end of the test sample 5 is arranged on the moving push rod 6. The motor water pump 8 is arranged on one side of the water tank 4, and the water inlet end of the motor water pump 8 is communicated with the water tank 4. The water outlet end of the motor water pump 8 is communicated with a water pipe. The water spray nozzle 1 is movably connected to the water pipe, and the water spray nozzle 1 is located above the test sample 5. The motor control board 10 is arranged on one side of the water tank 4, and the motor control board 10 is electrically connected to the lead screw motor 3 and the motor water pump 8 respectively.

[0020] In this embodiment, the test sample 5 can be a digital caliper, a micrometer or a caliper. When a performance aging test of the test sample 5 is required, the lead screw motor 3 is controlled by the motor control board 10 to rotate clockwise. Since the lead screw on the lead screw motor 3 is in threaded cooperation with the mounting plate 15, the mounting plate 15 moves along the lead screw of the lead screw motor 3 towards the end away from the fixed plate 16. As the mounting plate 15 moves, the movement push rod 6 is driven to slide along the linear slide rail towards the direction away from the fixed plate 16. One end of the movement push rod 6 abuts against the test sample 5, causing one end of the test sample 5 to contract. Then, the motor control board 10 controls the lead screw motor 3 to rotate counterclockwise, so that the mounting plate 15 moves along the lead screw of the lead screw motor 3 towards the end close to the fixed plate 16. As the mounting plate 15 moves, the movement push rod 6 is driven to slide along the linear slide rail towards the direction close to the fixed plate 16. The movement push rod 6 stretches one end of the test sample 5, causing one end of the test sample 5 to elongate. In this way, the reciprocating stretching test of the test sample 5 is realized. While the reciprocating stretching is being carried out, the motor water pump 8 operates to pump the water in the water tank 4. The water flows through the water pipe and then sprays out from the spray nozzle 1, so as to perform a water spraying treatment on the test sample 5 and conduct a waterproof test on the test sample 5. Therefore, the performance aging test equipment for measuring tools can conduct a performance aging test for measuring tools while performing a reciprocating stretching test and a waterproof test at the same time. The spray nozzle 1 on the water pipe can be finely adjusted to adjust the spraying angle of the spray nozzle 1. In addition, the reciprocating running speed, number of times and stroke of the lead screw motor 3 can be set through a program, and by controlling the operating state of the motor water pump 8, the water outlet frequency and water output of the spray nozzle 1 can be set. The setting of the linear guide rail 7 can provide support for the movement push rod 6 and reduce the friction during operation. The performance aging test equipment for measuring tools can simultaneously conduct performance aging tests on multiple groups of the test samples 5.

[0021] Furthermore, the performance aging test equipment for measuring tools further includes a sample fixing end assembly. The sample fixing end assembly includes a sample clamping and fixing end upper plate 11 and a sample clamping and fixing end lower plate 12. The sample clamping and fixing end upper plate 11 is connected to the test platform 2 by bolts, and the sample clamping and fixing end upper plate 11 abuts against the test sample 5. The sample clamping and fixing end lower plate 12 is connected to the test platform 2 by bolts, and the sample clamping and fixing end lower plate 12 abuts against the test sample 5.

[0022] In this embodiment, the test sample 5 is clamped and fixed by the cooperation of the upper plate 11 of the sample clamping and fixing end and the lower plate 12 of the sample clamping and fixing end, which can make the test sample 5 more firmly fixed and is conducive to performing a reciprocating tensile test.

[0023] Further, waist holes 17 are provided on both the upper plate 11 of the sample clamping and fixing end and the lower plate 12 of the sample clamping and fixing end.

[0024] In this embodiment, through the setting of the waist holes 17, the flexibility of clamping the size of the test sample 5 by the upper plate 11 of the sample clamping and fixing end and the lower plate 12 of the sample clamping and fixing end can be achieved.

[0025] Further, the performance aging test equipment for measuring tools further includes a sample moving end assembly. The sample moving end assembly includes a sample clamping moving end clamping plate 13 and a sample clamping moving end limiting column 14. The sample clamping moving end clamping plate 13 is connected to the moving push rod 6 by bolts, and the sample clamping moving end clamping plate 13 abuts against one end of the test sample 5. The sample clamping moving end limiting column 14 is threadedly connected to the moving push rod 6, and one end of the sample clamping moving end limiting column 14 penetrates through the moving push rod 6 and abuts against one end of the test sample 5.

[0026] In this embodiment, the sample clamping moving end clamping plate 13 and the sample clamping moving end limiting column 14 are components that keep the body of the test sample 5 running smoothly, and by tightening or loosening the screws, clamping of the test sample 5 of different specifications can be achieved.

[0027] Further, the performance aging test equipment for measuring tools further includes a counting display screen 9. The counting display screen 9 is fixedly connected to the water tank 4, is located on one side of the water tank 4, and is electrically connected to the motor control board 10.

[0028] In this embodiment, the counting display screen 9 can achieve aging operation counting, that is, the moving push rod 6 runs along the linear guide rail 7, the aging test starts, and after reaching the set number of running times, check the counting display screen 9 and the aging test results.

[0029] Further, chamfers 18 are provided at each bottom corner of the test platform 2.

[0030] In this embodiment, the setting of the chamfers 18 can make the water sprayed by the water spray nozzle 1 flow back into the water tank 4 so that the water can be recycled again to achieve water circulation.

[0031] Furthermore, the upper plate 11 of the sample clamping and fixing end includes a first support 19, a first connecting plate 20 and a resisting plate 21. One end of the first connecting plate 20 is fixedly connected to the first support 19, and the other end of the first connecting plate 20 is fixedly connected to the resisting plate 21. An angle formed between the first connecting plate 20 and the resisting plate 21 is adapted to the bottom angle of the test sample 5.

[0032] In this embodiment, the angle formed by the connection between the first connecting plate 20 and the resisting plate 21 is adapted to the bottom angle of the test sample 5, which can further clamp the test sample 5 firmly and prevent it from shaking easily.

[0033] Furthermore, the lower plate 12 of the sample clamping and fixing end includes two second supports 22, second connecting plates 23 and a cross bar 24. The number of the second supports 22 is two, and the two second supports 22 are symmetrically arranged. Each second support 22 is provided with a second connecting plate 23. Two ends of the cross bar 24 are respectively fixedly connected to the two second connecting plates 23 and are located between the two second connecting plates 23. The cross bar 24 abuts against the side wall of the test sample 5, and the cross bar 24 has a through hole 25.

[0034] In this embodiment, the through hole 25 has threads adapted to screws. By abutting the cross bar 24 against the test sample 5, the test sample 5 can be further clamped firmly. Moreover, the screws can be screwed. The threads on the screws are adapted to the threads on the inner wall of the through hole 25. The screws penetrate through the through hole 25, and by making the screws abut against the test sample 5, the test sample 5 can be further stabilized, so as to facilitate subsequent performance aging tests.

[0035] In summary, the performance aging test equipment for measuring tools of the present invention can realize high-accelerated aging tests for measuring tool products, improve the actual use performance of products, conduct reciprocating tensile tests and waterproof tests simultaneously, and can shorten the total time of the measuring tool aging test; during the test process, it can be used for comparative tests on the precision, lifespan, etc. of measuring tools of other manufacturers; further improve product reliability, quantify experimental data of products, and provide a direction for product optimization. In addition, the performance aging test equipment for measuring tools of the present invention can realize aging tests for different types of measuring tools by virtue of a flexible clamping method.

[0036] What is disclosed above is only a preferred embodiment of the present invention. Of course, the scope of rights of the present invention cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A performance aging test device for measuring tools, characterized in that it includes a water tank, a test platform, a lead screw motor, a mounting plate, a fixing plate, a moving push rod, a linear guide rail, a test sample, a motor water pump, a water spray nozzle and a motor control board. The test platform is arranged above the water tank. The lead screw motor is fixedly connected to the test platform. The fixing plate is fixedly connected to the test platform. The lead screw on the lead screw motor penetrates through the mounting plate and is rotatably connected to the fixing plate. The lead screw on the lead screw motor is in threaded cooperation with the mounting plate. The mounting plate is fixedly connected to the moving push rod. The linear guide rail is fixedly connected to the test platform and is located above the test platform. The number of the linear guide rails is multiple, and the multiple linear guide rails are equidistantly distributed. The moving push rod is slidably connected to the linear guide rail. The test sample is installed on the test platform, and one end of the test sample is arranged on the moving push rod. The motor water pump is arranged on one side of the water tank, and the water inlet end of the motor water pump is communicated with the water tank. The water outlet end of the motor water pump is communicated with a water pipe. The water spray nozzle is movably connected to the water pipe and is located above the test sample. The motor control board is arranged on one side of the water tank and is electrically connected to the lead screw motor and the motor water pump respectively.

2. The performance aging test device for measuring tools according to claim 1, characterized in that the performance aging test device for measuring tools further includes a sample fixed end assembly, and the sample fixed end assembly includes a sample clamping fixed end upper plate and a sample clamping fixed end lower plate. The sample clamping fixed end upper plate is connected to the test platform by bolts, and the sample clamping fixed end upper plate abuts against the test sample. The sample clamping fixed end lower plate is connected to the test platform by bolts, and the sample clamping fixed end lower plate abuts against the test sample.

3. The performance aging test device for measuring tools according to claim 2, characterized in that both the sample clamping fixed end upper plate and the sample clamping fixed end lower plate are provided with oblong holes.

4. The performance aging test device for measuring tools according to claim 1, characterized in that the performance aging test device for measuring tools further includes a sample movable end assembly, and the sample movable end assembly includes a sample clamping movable end clamping plate and a sample clamping movable end limiting post. The sample clamping movable end clamping plate is connected to the moving push rod by bolts, and the sample clamping movable end clamping plate abuts against one end of the test sample. The sample clamping movable end limiting post is in threaded connection with the moving push rod, and one end of the sample clamping movable end limiting post penetrates through the moving push rod and abuts against one end of the test sample.

5. The performance aging test device for measuring tools according to claim 1, characterized in that The performance aging test equipment for measuring tools further includes a counting display screen, which is fixedly connected to the water tank, located on one side of the water tank, and electrically connected to the motor control board.

6. The performance aging test equipment for measuring tools according to claim 1, characterized in that Chamfers are provided at each bottom corner of the test platform.

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