A device for detecting the elastic performance of a rod-like piece

Abstract

The utility model discloses a kind of elastic performance detection devices of rod parts, including bottom plate, clamping mechanism is set on bottom plate, and clamping measured rod piece;Linear guide rail is coaxial with clamping mechanism, linear guide rail is slidably set linear rail slider, linear rail slider is fixedly set slide table module on, slide table module is movably set plane force sensor and index pin, plane force sensor and index pin can exert pressure on the end surface of measured rod piece;Linear guide rail both sides are provided with two groups of laser transmission photoelectric switch, two groups of laser transmission photoelectric switch are set apart at a distance and can detect the moving distance of measured rod piece.The utility model can identify the elasticity of rod piece by different measurement methods through innovative design.Good or bad is replaced traditional manual measurement using digitized sensing technology, and error caused by human factor is eliminated.Through standardization operation, the stability of quality control is standardized.

Description

Technical Field

[0001] This utility model relates to the field of rod-type component testing technology, and in particular to a device for testing the elastic properties of rod-type components. Background Technology

[0002] Certain rod-shaped components require a certain degree of elasticity in specific applications. For example, the basic principle of a traditional key-type pulse generator is to control the compression and ejection of a signal valve rod by opening and closing a servo valve. The flow area of ​​the mud between the signal valve rod and the flow-limiting ring within the circulation sleeve is controlled by the proximity and distance between them, thus generating a pressure signal. Therefore, testing the elasticity of the signal valve rod is particularly important. While traditional mechanical testing methods are simple to operate, their measurement accuracy is limited, often failing to capture subtle performance changes. The operator's experience and skill level directly affect the test results, leading to inconsistent test data for the same batch of products. More importantly, these methods struggle to accurately assess the true performance of the main valve head under dynamic operating conditions, which is a key factor affecting signal transmission quality. The lag in industry standards also hinders the development of testing technology; current specifications do not fully cover testing requirements under dynamic operating conditions. All these factors collectively constitute an urgent need to upgrade the testing technology for the elasticity performance of rod-shaped components, which will drive the industry towards more intelligent and accurate testing solutions. Utility Model Content

[0003] To address the aforementioned challenges, this invention provides a simple, highly accurate, and easy-to-operate device for testing the elastic properties of rod-like components.

[0004] The technical solution of the testing device provided by this utility model is: a testing device for the elastic properties of rod-like components, characterized in that: it includes a base plate, a clamping mechanism, a linear guide rail, a linear track slider, a slide module, a planar force sensor, an indexing pin, and a laser photoelectric switch;

[0005] A clamping mechanism is provided on the base plate to clamp the rod being measured;

[0006] The linear guide rail is coaxially arranged with the clamping mechanism. A linear track slider is slidably arranged on the linear guide rail. A slide block module is fixedly arranged on the linear track slider. A plane force sensor and an indexing pin are movably arranged on the slide block module. The plane force sensor and the indexing pin can apply pressure to the end face of the rod being measured.

[0007] Two sets of laser photoelectric switches are installed on both sides of the linear guide rail. The two sets of laser photoelectric switches are set at a certain distance apart to detect the movement distance of the rod being measured.

[0008] Furthermore: the clamping mechanism includes a pad, a V-shaped seat, and a V-shaped pressure plate; the pad is fixed on the base plate, the V-shaped seat is fixed on the pad, one side of the V-shaped pressure plate is hinged to the V-shaped seat, and the other side is locked by a latch; the opposite sides of the V-shaped pressure plate and the V-shaped seat are each provided with a V-shaped notch.

[0009] Furthermore, the clamping mechanism consists of two sets arranged in a straight line.

[0010] Furthermore: the slide module includes a handwheel, a slide, a fixed base, an optical axis, and a lead screw;

[0011] The fixed seat is fixed on the linear track slider. The fixed seat has a groove. Two optical shafts and one lead screw are installed in parallel in the groove. The optical shafts are fixedly installed. The lead screw is rotatably installed.

[0012] A handwheel is connected to one end of the lead screw shaft that protrudes from the fixed seat;

[0013] The mounting base is marked with linear graduations;

[0014] The slide is mounted on both the optical axis and the lead screw shaft, with a sliding connection to the optical axis and a ball screw connection to the lead screw shaft.

[0015] A sensor base is fixed on the slide, and a planar force sensor and an indexing pin are fixedly installed on the sensor base.

[0016] Furthermore: photoelectric sensor pads are symmetrically arranged on both sides of the linear guide rail. The photoelectric sensor pads are fixedly connected to the base plate. A laser photoelectric switch is provided on the photoelectric sensor pad. A set of laser photoelectric switches symmetrical to both sides of the linear guide rail are paired to emit and receive lasers.

[0017] Furthermore: a moving mechanism is provided on the photoelectric sensor pad, and two laser photoelectric switches on the same photoelectric sensor pad are mounted on the moving mechanism.

[0018] Furthermore, the linear guide rail is equipped with a locking switch for the linear track slider.

[0019] Compared with existing technologies, the beneficial effects of this utility model are as follows: The testing device provided by this utility model, through innovative design, realizes multiple testing items such as stroke pressure and elastic rebound time, and can identify the elastic performance of rods using different methods. The device has a compact and reasonable layout, and operators can quickly learn to use it without professional training. In terms of testing accuracy, digital sensing technology replaces traditional manual measurement, eliminating errors caused by human factors. Standardized operating procedures achieve stable quality control, making the measurement results highly repeatable, laying a solid foundation for consistent product quality, while reducing manpower input and production costs, forming a testing solution that balances quality and efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the appearance of a rod-type component elastic performance testing device according to the present invention;

[0021] Figure 2 This is a top view of the device for testing the elastic properties of rod-like components under working conditions according to this utility model;

[0022] Figure 3 This is a schematic diagram of the slide module of the rod-type component elastic performance testing device of this utility model.

[0023] In the diagram, 1-base plate, 2-pad, 3-V-shaped seat, 4-V-shaped pressure plate, 5-linear guide rail, 6-linear track slider, 7-foot, 8-slide module, 9-planar force sensor, 10-sensor bracket, 11-sensor seat, 12-indexing pin, 13-photoelectric sensor pad, 14-laser photoelectric switch. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and embodiments, wherein the drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the present invention. However, those skilled in the art should understand that the following embodiments are not the only limitation on the technical solution of the present invention, and any equivalent transformations or modifications made under the spirit and essence of the technical solution of the present invention should be considered as falling within the protection scope of the present invention.

[0025] like Figure 1-3 As shown, this utility model provides a device for testing the elastic properties of rod-like components. The main components of the device include: a base plate 1, a V-shaped seat 3, a V-shaped pressure plate 4, a linear guide rail 5, a linear track slider 6, a slide module 8, a planar force sensor 9, an indexing pin 12, a photoelectric sensor pad 13, and a laser photoelectric switch 14.

[0026] The base plate 1 is the supporting carrier of this device. Furthermore, in order to make the device more stable and to prevent the base plate 1 from touching the ground as much as possible, feet 7 are provided at the bottom of the base plate 1.

[0027] A clamping mechanism is provided on the base plate 1. The clamping mechanism includes a V-shaped seat 3 and a V-shaped pressure plate 4. The V-shaped seat 3 and the V-shaped pressure plate 4 are positioned vertically opposite each other, hinged on one side by a cylindrical pin, and locked on the other side by a latch. Each of the V-shaped seat 3 and the V-shaped pressure plate 4 has a V-shaped notch on its opposite side. The two V-shaped notches combine to form a diamond-shaped opening for clamping rod-like parts. Furthermore, the four corners of the diamond-shaped opening are rounded to avoid damage to the rod-like parts.

[0028] Furthermore, two sets of clamping mechanisms are arranged in a straight line on the base plate 1, which makes the clamping more stable. The clamping mechanism also includes a pad block 2, and a V-shaped seat 3 is fixedly connected to each pad block 2. Then, a V-shaped pressure plate 4 is set on each V-shaped seat 3. In this way, the V-shaped seat 3 and the pad block 2 are fixed, and the V-shaped seat 3 is raised to a certain height. The V-shaped pressure plate 4 is hinged to the V-shaped seat 3 through a cylindrical pin. A V-shaped opening is provided between the V-shaped pressure plate 4 and the V-shaped seat 3. When the V-shaped pressure plate 4 and the V-shaped seat 3 are unfolded, rod-like parts can be inserted, and when they are closed, rod-like parts can be clamped.

[0029] A linear guide rail 5 is coaxially arranged on one side of the clamping mechanism. The linear guide rail 5 is fixedly installed on the base plate 1. A linear track slider 6 is slidably installed on the linear guide rail 5. A slide table module 8 is provided on the top of the linear track slider 6 and fixedly connected to it. The linear track slider 6 drives the slide table module 8 to move together. In this utility model, the linear track slider 6 has a locking function. The linear track slider 6 can be locked on the linear guide rail 5 by a locking switch. A planar force sensor 9 is provided on the slide table module 8. The planar force sensor 9 faces the V-shaped seat 3 and the V-shaped pressure plate 4.

[0030] Furthermore, a sensor base 11 is provided on the slide module 8 and fixedly connected thereto. A sensor bracket 10 is provided on the sensor base 11 and fixedly connected thereto. A planar force sensor 9 is provided on the side of the sensor bracket 10 facing the V-shaped seat 3 and the V-shaped pressure plate 4. The planar force sensor 9 is fixedly connected to the sensor bracket 10. In this way, the slide module 8 can drive the planar force sensor 9 to move.

[0031] Furthermore, the structure of the slide module 8 is as follows: Figure 3As shown, the system includes a handwheel 801, a slide table 802, a fixed base 803, optical shafts 804, and a lead screw 805. The fixed base 803 is fixed to the linear track slider 6. The fixed base 803 has grooves in which two optical shafts 804 are fixedly installed and a lead screw 805 is rotatably installed. The two optical shafts 804 are symmetrically distributed, and the lead screw 805 is installed between them. The slide table 802 passes through both the optical shafts 804 and the lead screw 805, being slidably connected to the optical shafts 804 and connected to the lead screw 805 via a ball screw pair. A sensor base 11 is fixed on the slide table 802. The lead screw shaft 805 is rotatably mounted on the fixed seat 803 and extends out of the fixed seat at one end, which is fixedly connected to the handwheel 801. The fixed seat 803 is marked with a scale. The handwheel 801 rotates to drive the lead screw shaft 805 to rotate, and the slide table 802 drives the sensor seat 11 to move on the lead screw shaft 805. The scale on the fixed seat 803 can mark the moving distance of the slide table 802.

[0032] One end of the sensor base 11 is fixed to the sensor bracket 10, and the plane force sensor 9 is fixed on the sensor bracket 10, with the plane force sensor 9 facing the direction of the clamping mechanism; the other end of the sensor base 11 extends out from the slide module 8, and an indexing pin 12 is fixedly installed on the upper surface of the extension.

[0033] Two sets of laser beam photoelectric switches 14 are symmetrically arranged on both sides of the linear guide rail 5. Each set of laser beam photoelectric switches 14 is supported on a photoelectric sensor pad 13. The photoelectric sensor pad 13 is fixedly connected to the base plate 1. The two sets of laser beam photoelectric switches 14 are arranged at a certain distance apart. In each set of laser beam photoelectric switches, one is used as the transmitter and the other is used as the receiver, so as to realize the laser beam transmission and reception function.

[0034] Furthermore, a moving mechanism can be installed on the photoelectric sensor pad 13. Two laser photoelectric switches 14 on the same photoelectric sensor pad 13 can be installed on the moving mechanism. When needed, the distance between the two laser sensors can be adjusted to monitor displacement at different distances. The moving mechanism can be configured in a conventional way.

[0035] This device can determine the elastic performance of the signal valve stem by measuring the pressure value of the signal valve stem of the main valve head assembly of the key-type pulse generator under a specified compression stroke, or by measuring the time history of the signal valve stem after it is compressed and ejected and travels a specified distance.

[0036] 1) When measuring the elasticity of a signal valve stem by means of pressure rebound, the following method shall be adopted:

[0037] When using, first open the V-shaped pressure plate 4 installed on the V-shaped seat 3, place the main valve head assembly to be tested (including the signal valve rod) on the V-shaped seat 3, and adjust the position of the main valve head assembly. The initial adjustment position of the main valve head assembly is to ensure that the end face of the signal valve rod is aligned with the infrared laser emitted by the first group of laser photoelectric switches 14 (the end closer to the clamping mechanism is called the first group). This is the initial position of the signal valve rod. Then, close the V-shaped pressure plate 4.

[0038] Then push the linear track slider 6 to make the slide module 8 gradually approach the main valve head assembly. The locking tongue of the indexing pin 12 is in the pop-out state. When the locking tongue of the indexing pin 12 is against the end face of the signal valve stem, the linear track slider 6 is locked. The locking switch locks the linear track slider 6 onto the linear guide rail 5.

[0039] Then, by rotating the handwheel 801, the slide table 802 is finely adjusted. The rotation of the handwheel 801 drives the lead screw shaft 805 to rotate, and the slide table 802 drives the indexing pin 12 on the sensor seat 11 to further compress the signal valve rod.

[0040] Then, pull down and lock the locking tongue of the indexing pin 12, so that the locking tongue of the indexing pin 12 disengages from the end face of the signal valve rod. After losing the support of the locking tongue of the indexing pin 12, the signal valve rod quickly pops out and passes through two sets of laser photoelectric switches 14 in succession. By observing the interval of the electrical signal of the external oscilloscope, the time it takes for the signal valve rod to pass through the fixed distance of the two sets of laser photoelectric switches 14 can be measured. By measuring the rebound time, the quality of the elastic performance can be determined.

[0041] 2) When judging the elastic performance of the signal valve stem by the pressure value under a specified compression stroke, the following method shall be adopted:

[0042] In use, first open the V-shaped pressure plate 4 installed on the V-shaped seat 3, place the main valve head assembly to be tested (including the signal valve stem) on the V-shaped seat 3, and adjust the position of the main valve head assembly. The initial position of the main valve head assembly is: the end face of the signal valve stem is aligned with the infrared laser emitted by the second set of laser photoelectric switches 14 (the end away from the clamping mechanism is called the second set). This is the initial position of the signal valve stem. Then close the V-shaped pressure plate 4.

[0043] Then, push the linear track slider 6 to gradually bring the slide module 8 closer to the main valve head assembly, so that the planar force sensor 9 just contacts the signal valve stem, and the locking tongue of the indexing pin 12 is in the retracted state. When the planar force sensor 9 just contacts the signal valve stem, lock the linear track slider 6 onto the linear guide rail 5.

[0044] Then, by rotating the handwheel 801 to fine-tune the slide 802, the planar force sensor 9 further compresses the signal valve rod. The compression distance is calculated by the scale on the fixed base 803 or the sensing value of the two sets of laser photoelectric switches (when detected by the two sets of laser photoelectric switches, it must be ensured that the starting point of the signal valve rod end face is at the position of the second set of laser photoelectric switches and the ending point is at the position of the first set of laser photoelectric switches). At this time, the pressure value under this stroke can be read by the instrument connected to the planar force sensor 9. The pressure value sensed by the signal valve rod of different masses is different, thereby judging the quality of the elastic performance of the signal valve rod.

[0045] Although embodiments of the present invention have been shown and described above, it will be understood by those skilled in the art that any equivalent changes, modifications, substitutions and variations made without departing from the principles and spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. A device for testing the elastic properties of rod-like components, characterized in that: It includes a base plate (1), a clamping mechanism, a linear guide rail (5), a linear track slider (6), a slide module (8), a planar force sensor (9), an indexing pin (12), and a laser photoelectric switch (14); A clamping mechanism is provided on the base plate (1) to clamp the rod to be measured; The linear guide rail (5) is coaxially arranged with the clamping mechanism. A linear track slider (6) is slidably arranged on the linear guide rail (5). A slide block module (8) is fixedly arranged on the linear track slider (6). A plane force sensor (9) and an indexing pin (12) are movably arranged on the slide block module (8). The plane force sensor (9) and the indexing pin (12) can apply pressure to the end face of the rod being measured. Two sets of laser photoelectric switches (14) are provided on both sides of the linear guide rail (5). The two sets of laser photoelectric switches (14) are set at a certain distance apart to detect the movement distance of the rod being measured.

2. The device for testing the elastic properties of rod-like components according to claim 1, characterized in that: The clamping mechanism includes a pad (2), a V-shaped seat (3), and a V-shaped pressure plate (4); The pad (2) is fixed on the base plate (1); The V-shaped seat (3) is fixed on the pad (2); The V-shaped pressure plate (4) is hinged to the V-shaped seat (3) on one side and locked on the other side by a latch; The V-shaped pressure plate (4) and the V-shaped seat (3) each have a V-shaped notch on their opposite sides.

3. The device for testing the elastic properties of rod-like components according to claim 2, characterized in that: The clamping mechanism consists of two sets arranged in a straight line.

4. The device for testing the elastic properties of rod-like components according to claim 1, characterized in that: The slide module (8) includes a handwheel (801), a slide (802), a fixed base (803), an optical axis (804), and a lead screw (805); The fixed seat (803) is fixed on the linear track slider (6). The fixed seat (803) has a groove. Two optical shafts (804) and a lead screw shaft (805) are installed in parallel in the groove. The optical shafts (804) are fixedly installed, and the lead screw shaft (805) is rotatably installed. The lead screw shaft (805) is connected to a handwheel (801) at one end that protrudes from the fixed seat (803); The mounting base (803) is marked with linear scales; The slide (802) is simultaneously mounted on the optical axis (804) and the lead screw (805), and is slidably connected to the optical axis (804) and connected to the lead screw (805) by a ball screw pair. A sensor base (11) is fixed on the slide (802), and a planar force sensor (9) and an indexing pin (12) are fixedly installed on the sensor base (11).

5. The device for testing the elastic properties of rod-like components according to claim 1, characterized in that: Photoelectric sensor pads (13) are symmetrically arranged on both sides of the linear guide rail (5). The photoelectric sensor pads (13) are fixedly connected to the base plate (1). A laser photoelectric switch (14) is provided on the photoelectric sensor pad (13). A set of laser photoelectric switches (14) symmetrical to both sides of the linear guide rail (5) are paired to emit and receive lasers.

6. The device for testing the elastic properties of rod-like components according to claim 5, characterized in that: A moving mechanism is provided on the photoelectric sensor pad (13), and two laser photoelectric switches (14) on the same photoelectric sensor pad (13) are mounted on the moving mechanism.

7. The device for testing the elastic properties of rod-like components according to claim 1, characterized in that: The linear guide rail (5) is equipped with a locking switch for the linear track slider (6).

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