Flat wire bourdon tube stiffness coefficient measuring device

Abstract

The utility model relates to the technical field of spring measuring devices, and discloses a stiffness coefficient measuring device for a flat wire bourdon tube, a fixed positioning end is arranged below the front surface of a vertical plate, the fixed positioning end comprises a fixed plate and a first positioning plate, the fixed plate is connected with the lower end of the front surface of the vertical plate, and first connecting plates are symmetrically arranged on the upper end surface of the fixed plate; a positioning plate I is arranged between the upper ends of the connecting plates I; an open groove is formed above the fixed positioning end on the vertical plate, a movable positioning end is connected in the open groove in a sliding mode, the movable positioning end comprises a movable plate and a force measuring assembly, the movable plate is connected with the open groove in a sliding mode, and the force measuring assembly is arranged at the front end of the movable plate; an electric push rod is arranged on the back face of the vertical plate, a piston rod of the electric push rod is connected with the rear end of the movable plate, and the electric push rod is connected with the vertical plate through a position adjusting assembly. The device has the advantages that the two ends of the spring can be effectively fixed, the measurement precision is high, and obtained data are comprehensive.

Description

Technical Field

[0001] The utility model relates to the technical field of spring measuring devices, in particular to a flat wire spring tube stiffness coefficient measuring device. Background Art

[0002] After the flat wire spring tube is processed, its stiffness coefficient needs to be measured by a measuring device. The existing measuring device, such as the Chinese utility model with application number 201620553691.2, mainly includes a linear motor, a connecting block, a force sensor, a spring pressure plate, a spring pressure plate guide rod and a displacement sensor. The linear motor drives the compression mechanism to compress the spring. The compression mechanism is provided with a force sensor and a digital micrometer, which can measure the force and deformation of the spring in real time. It has the following disadvantages:

[0003] 1. Lack of fixation on both ends of the spring, the positions of both ends of the spring are prone to offset, affecting the accuracy of the measurement;

[0004] 2. It is impossible to perform tensile testing on the spring, and the stiffness coefficient measurement is not comprehensive. Utility Model Content

[0005] 1. Technical Problems Solved

[0006] The technical problem to be solved by the utility model is that the existing measuring device cannot effectively fix the two ends of the spring, the measuring accuracy is not high, and the obtained data is not comprehensive.

[0007] 2. Technical Solution

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions: a device for measuring the stiffness coefficient of a flat wire spring tube, comprising a bottom plate and a vertical plate, wherein the upper surface of the bottom plate is provided with a vertical plate,

[0009] A fixed positioning end is provided below the front face of the vertical plate, and the fixed positioning end includes a fixed plate and a positioning plate 1, the fixed plate is connected to the lower end of the front face of the vertical plate, a connecting plate 1 is symmetrically provided on the upper end of the fixed plate, and a positioning plate 1 is provided between the upper ends of the connecting plate 1;

[0010] A slot is provided above the fixed positioning end on the vertical plate, a movable positioning end is slidably connected in the slot, the movable positioning end includes a movable plate and a force measuring component, the movable plate is slidably connected to the slot, a force measuring component is provided at the front end of the movable plate, the force measuring component is connected to one end of the flat wire spring tube, and measures the tensile and compressive forces thereof;

[0011] An electric push rod is provided on the back of the vertical plate, a piston rod of the electric push rod is connected to the rear end of the movable plate, the electric push rod is connected to the vertical plate through a position adjustment component, and the position adjustment component drives the electric push rod to move along the height direction of the vertical plate;

[0012] A display screen is disposed on the front of the vertical plate, and a controller is disposed on the vertical plate. The controller is connected with the force measuring component, the electric push rod and the display screen signal.

[0013] Furthermore, the force measuring assembly includes a connecting plate 2, a positioning plate 2 and a force sensor. The front end of the movable plate is slidably connected to the connecting plate 2, a positioning plate 2 is provided between the lower ends of the connecting plates 2, a transmission plate is provided between the upper ends of the connecting plates 2, a force sensor is provided on the upper surface of the movable plate, the force sensor is connected to the transmission plate through a transmission block, and the force sensor is connected to the controller signal.

[0014] Furthermore, the position adjustment assembly includes an adjustment rod and a horizontal plate, the adjustment rod is connected to the vertical plate through a positioning plate, the adjustment rod is threadedly connected to the positioning plate, the lower end of the adjustment rod is rotatably connected to the horizontal plate, the horizontal plate is connected to the electric push rod, and a guide assembly is provided between the electric push rod and the vertical plate.

[0015] Furthermore, the guide assembly includes a guide rail and a slider, the guide rail is connected to the vertical plate, the guide rail is slidably connected to a slider, and the slider is connected to the electric push rod.

[0016] Furthermore, there are two guide rails, and the two guide rails are symmetrically distributed left and right.

[0017] 3. Beneficial Effects

[0018] The advantages of the utility model compared with the prior art are:

[0019] 1. The fixed positioning end and the movable positioning end are used to fix the two ends of the spring to be tested to prevent the flat wire spring tube from shifting during testing and ensure the accuracy of the test;

[0020] 2. The electric push rod drives the movable plate to move up and down in the slot, compressing and stretching the flat wire spring tube, thereby comprehensively testing its progress coefficient;

[0021] 3. The position adjustment component adjusts the initial position of the electric push rod and the movable plate to meet the measurement of flat wire spring tubes of different specifications and lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0023] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0024] Figure 3 The structure of the utility model is shown in FIG. Figure 3 ;

[0025] Figure 4 It is a structural schematic diagram of A of the utility model.

[0026] Figure numerals: 1, bottom plate, 2, vertical plate, 3, fixed plate, 4, positioning plate 1, 5, connecting plate 1, 6, slot, 7, movable plate, 8, electric push rod, 9, display screen, 10, controller, 11, connecting plate 2, 12, positioning plate 2, 13, force sensor, 14, transmission plate, 15, transmission block, 16, adjusting rod, 17, cross plate, 18, guide rail, 19, slider. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present utility model are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present utility model.

[0028] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the utility model are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] The utility model will now be further described in conjunction with the accompanying drawings.

[0032] Embodiment 1

[0033] Combined with Figure 1-3A fixed positioning end is provided at the lower part of the front face of the vertical plate 2, and the fixed positioning end includes a fixed plate 3 and a positioning plate 4. The fixed plate 3 is connected to the lower end of the front face of the vertical plate 2, and a connecting plate 5 is symmetrically provided on the upper end face of the fixed plate 3, and a positioning plate 4 is provided between the upper ends of the connecting plate 5; a slot 6 is provided above the fixed positioning end on the vertical plate 2, and a movable positioning end is slidably connected in the slot 6, and the movable positioning end includes a movable plate 7 and a force measuring component, the movable plate 7 is slidably connected to the slot 6, and a force measuring component is provided at the front end of the movable plate 7, and the force measuring component is connected to one end of the flat wire spring tube to measure the tensile and compressive forces thereof, and a connecting plate 2 11 is slidably connected to the front end of the movable plate 7, and a positioning plate 2 12 is provided between the lower ends of the connecting plate 2 11.

[0034] When measuring, the positioning plate 1 4 and the positioning plate 2 are stuck in the gaps at both ends of the flat wire spring tube to position the flat wire spring tube in the initial state.

[0035] Combined with Figure 1-4 A slot 6 is provided above the fixed positioning end on the vertical plate 2, and a movable positioning end is slidably connected in the slot 6. An electric push rod 8 is provided on the back of the vertical plate 2, and the piston rod of the electric push rod 8 is connected to the rear end of the movable plate 7. The electric push rod 8 is connected to the vertical plate 2 through a position adjustment component, and the position adjustment component drives the electric push rod 8 to move along the height direction of the vertical plate 2. A transmission plate 14 is provided between the upper ends of the two connecting plates 11, and a force sensor 13 is provided on the upper end surface of the movable plate 7. The force sensor 13 is connected to the transmission plate 14 through a transmission block 15, and the force sensor 13 is connected to the controller 10 by signal. The vertical plate 2 is provided with a controller 10, and the controller 10 is connected to the force measuring component, the electric push rod 8 and the display screen 9 by signal.

[0036] After the two ends of the flat wire spring tube are fixed, the piston rod of the electric push rod 8 is extended and retracted, driving the movable plate 7 to move up and down in the slot 6. During the movement of the movable plate 7, the flat wire spring tube is stretched and compressed. When the flat wire spring tube is deformed, the connecting plate 11 slides on the movable plate 7. The connecting plate 11 slides through the transmission plate 14 and the transmission block 15 to transmit the force to the force sensor 13. The force detected by the force sensor 13 is transmitted to the controller 10 and displayed on the display screen 9.

[0037] Embodiment 2

[0038] Combined with Figure 2-3The electric push rod 8 is connected to the vertical plate 2 through a position adjustment component, and the position adjustment component drives the electric push rod 8 to move along the height direction of the vertical plate 2; the position adjustment component includes an adjustment rod 16 and a cross plate 17, the adjustment rod 16 is connected to the vertical plate 2 through a positioning plate, the adjustment rod 16 is threadedly connected to the positioning plate, the lower end of the adjustment rod 16 is rotatably connected to the cross plate 17, the cross plate 17 is connected to the electric push rod 8, and a guide component is provided between the electric push rod 8 and the vertical plate 2; the guide component includes a guide rail 18 and a slider 19, the guide rail 18 is connected to the vertical plate 2, the guide rail 18 is slidably connected to the slider 19, and the slider 19 is connected to the electric push rod 8.

[0039] On the basis of the first embodiment, according to the specification length of the flat wire spring tube, the adjusting rod 16 is rotated to adjust the length of the adjusting rod 16 exposed from the positioning plate, and the position of the horizontal plate 17 is adjusted. The horizontal plate 17 adjusts the position of the electric push rod 8, thereby adjusting the initial position of the movable positioning end. During the movement of the electric push rod 8, the slider 19 connected to the electric push rod 8 slides on the guide rail 18, thereby guiding the movement direction of the electric push rod 8.

[0040] The utility model and its implementation methods are described, and such description is not restrictive. The drawings are only one of the implementation methods of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it, without departing from the purpose of the invention of the utility model, they can design a structure and implementation method similar to the technical solution without creativity, which should belong to the protection scope of the utility model.

Claims

1. A device for measuring the stiffness coefficient of a flat wire spring tube, comprising a bottom plate (1) and a vertical plate (2), wherein the vertical plate (2) is disposed on the upper end surface of the bottom plate (1), and characterized in that: A fixed positioning end is provided below the front face of the vertical plate (2), and the fixed positioning end comprises a fixed plate (3) and a positioning plate (4); the fixed plate (3) is connected to the lower end of the front face of the vertical plate (2); a connecting plate (5) is symmetrically provided on the upper end of the fixed plate (3); and a positioning plate (4) is provided between the upper ends of the connecting plates (5); A slot (6) is provided above the fixed positioning end on the vertical plate (2), a movable positioning end is slidably connected in the slot (6), the movable positioning end comprises a movable plate (7) and a force measuring component, the movable plate (7) is slidably connected to the slot (6), a force measuring component is provided at the front end of the movable plate (7), the force measuring component is connected to one end of the flat wire spring tube, and measures the tensile and compressive forces thereof; An electric push rod (8) is provided on the back of the vertical plate (2), a piston rod of the electric push rod (8) is connected to the rear end of the movable plate (7), the electric push rod (8) is connected to the vertical plate (2) through a position adjustment component, and the position adjustment component drives the electric push rod (8) to move along the height direction of the vertical plate (2); A display screen (9) is provided on the front of the vertical board (2), and a controller (10) is provided on the vertical board (2). The controller (10) is connected to the force measuring component, the electric push rod (8) and the display screen (9) by signals.

2. A device for measuring stiffness coefficient of a flat wire spring tube according to claim 1, characterized in that: The force measuring assembly comprises a second connecting plate (11), a second positioning plate (12) and a force sensor (13); the front end of the movable plate (7) is slidably connected to the second connecting plate (11) in the left and right directions; a second positioning plate (12) is arranged between the lower ends of the second connecting plate (11); a transmission plate (14) is arranged between the upper ends of the second connecting plate (11); a force sensor (13) is arranged on the upper end surface of the movable plate (7); the force sensor (13) is connected to the transmission plate (14) through a transmission block (15); and the force sensor (13) is connected to the controller (10) by signal.

3. The device for measuring stiffness coefficient of a flat wire spring tube according to claim 1, characterized in that: The position adjustment component comprises an adjustment rod (16) and a transverse plate (17); the adjustment rod (16) is connected to the vertical plate (2) via a positioning plate; the adjustment rod (16) is threadedly connected to the positioning plate; the lower end of the adjustment rod (16) is rotatably connected to the transverse plate (17); the transverse plate (17) is connected to an electric push rod (8); and a guide component is provided between the electric push rod (8) and the vertical plate (2).

4. A device for measuring stiffness coefficient of a flat wire spring tube according to claim 3, characterized in that: The guide assembly comprises a guide rail (18) and a slider (19); the guide rail (18) is connected to the vertical plate (2); the guide rail (18) is slidably connected to the slider (19); and the slider (19) is connected to the electric push rod (8).

5. A device for measuring stiffness coefficient of a flat wire spring tube according to claim 4, characterized in that: There are two guide rails (18), and the two guide rails (18) are symmetrically distributed left and right.

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