CN210426408U - Spring deformation measuring device - Google Patents

Abstract

The utility model discloses a spring deformation measuring device, which belongs to the field of spring measurement, and comprises a bottom plate and a spring dynamometer, wherein the spring dynamometer is positioned at the upper side of the bottom plate, the upper end of the bottom plate is provided with a first fixed plate fixedly connected with the bottom plate, the upper end of the bottom plate is provided with a chute, a sliding plate connected with a connecting rope is driven to move by rotating a bobbin, the accurate measurement of the deformation quantity of the spring can be realized, the spring is connected with the sliding plate for fixing the spring by the connecting rope, then the bobbin is rotated, the connecting rope is driven to wind the bobbin by the rotation of the bobbin, and then the sliding plate is driven to move, so that the deformation quantity of the spring can be calculated by L2 pi rN (r is the radius of the bobbin, and N is the number of rotating turns), meanwhile, a graduated scale is additionally arranged on the measuring device, and the measured value of the graduated scale is compared with the calculated value of a formula, thereby improving the measurement of the deformation precision of the spring and ensuring the production quality of the spring.

Description

Spring deformation measuring device

Technical Field

The utility model relates to a spring measurement field, more specifically say, relate to a spring deformation measuring device.

Background

A spring is a mechanical part that works by elasticity. The part made of elastic material deforms under the action of external force, and restores to the original shape after the external force is removed; the types of the springs are complex and various, and the springs are divided into different shapes, mainly comprising spiral springs, volute springs, plate springs, special-shaped springs and the like; the springs need to be checked in a sampling mode after being produced, deformation quantity of the springs is measured, and production quality of the springs is guaranteed;

however, the existing measuring device for the spring deformation mostly adopts mechanical pulling of the spring to extend and then the deformation is measured, and the mechanical equipment pulls the spring to move, so that the precision of the movement is low, the precision of the measured spring deformation is low, and the guarantee of the production quality of the spring is affected.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

Problem to exist among the prior art, the utility model aims to provide a spring deformation measuring device, it can realize carrying out accurate measurement to the deformation volume of spring, be connected with fixed spring's slide through connecting the rope, rotate the bobbin again, rotate through the bobbin, it is around establishing on the bobbin to drive the connection rope, and then drive the slide and remove, make the deformation volume of spring calculate through L2 pi rN (r is the radius of bobbin, N is bobbin pivoted number of turns), add on measuring device simultaneously and establish the scale, the measured value through the scale contrasts with the calculation numerical value of formula, thereby improve the measurement of spring deformation precision, guarantee the production quality of spring.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

A spring deformation measuring device comprises a bottom plate and a spring dynamometer, wherein the spring dynamometer is positioned on the upper side of the bottom plate, a first fixing plate fixedly connected with the bottom plate is arranged at the upper end of the bottom plate, a sliding chute is arranged at the upper end of the bottom plate, a sliding plate is arranged in the sliding chute and positioned on the right side of the first fixing plate, a sliding block slidably connected with the sliding chute is arranged at the lower end of the sliding plate, a pull ring fixedly connected with the sliding plate is arranged at the left end of the sliding plate, a cavity is arranged in the first fixing plate, a socket communicated with the cavity is arranged at the right end of the first fixing plate, the spring dynamometer is inserted in the socket and slidably connected with the socket, a second fixing plate fixedly connected with the bottom plate is symmetrically arranged at the upper end of the bottom plate, the second fixing plate is positioned on the right side of the sliding plate, a rotating rod rotatably connected with the second fixing plate is inserted, the rotating rod is sleeved with a bobbin fixedly connected with the rotating rod, the bobbin is positioned between two second fixing plates, the bobbin is wound with a connecting rope, one end of the connecting rope is fixedly connected with the right end of the sliding plate, the spring dynamometer, the pull ring and the connecting rope are positioned on the same horizontal plane, the rotating rod is sleeved with a limiting device, the limiting device is positioned on the front side of the second fixing plates, the sliding plate connected with the connecting rope is driven to move by rotating the bobbin, so that one end of the sliding plate is connected with the spring dynamometer, the other end of the sliding plate is connected with a spring to be measured, the spring to be measured is stretched, the deformation amount of the spring is calculated by a formula L which is 2 pi rN (r is the radius of the bobbin, and N is the number of rotating turns), compared with the traditional mechanical pulling spring deformation, the bobbin is used as a deformation power source, and the measuring precision, the production quality of the spring is ensured.

Furthermore, the bottom end of the cavity in the first fixing plate is symmetrically provided with a return spring fixedly connected with the bottom end, the other end of the return spring is provided with a first extrusion plate fixedly connected with the return spring, the first extrusion plate is connected with the side wall of the cavity in a sliding manner, the upper end of the first fixing plate is inserted with a threaded rod in threaded connection with the first extrusion plate, the lower end of the threaded rod is provided with a second extrusion plate rotatably connected with the threaded rod, the second extrusion plate is connected with the side wall of the cavity in a sliding manner, the second extrusion plate is positioned above the first extrusion plate, the spring dynamometer is positioned between the first extrusion plate and the second extrusion plate, the tension on the spring to be tested can be tested when the deformation of the spring to be tested is measured by additionally arranging the spring dynamometer, and the elastic coefficient of the spring is calculated by the formula elastic coefficient k being F/s (F is the stress of the spring, s is the deformation of the spring), thereby guarantee the production quality of spring, through threaded rod and first fixed plate threaded connection, drive the second stripper plate and move down, fix the spring dynamometer through first stripper plate and second stripper plate, prevent that the spring dynamometer from removing when measuring, be convenient for simultaneously as required, change the spring dynamometer of different ranges.

Further, the front end of bottom plate is equipped with rather than fixed connection's magnet, the one end that the bottom plate was kept away from to magnet is equipped with rather than sliding connection's scale, the scale is made by ferrous material, can measure the deformation volume of the spring that awaits measuring through adding on the bottom plate and establish the scale, compares with the spring deformation volume that awaits measuring that bobbin calculated to guarantee the measurement accuracy of the spring deformation that awaits measuring, the scale adopts ferrous material to be connected with the magnet on the bottom plate simultaneously, thereby conveniently removes the scale.

Further, stop device comprises spacing dish and inserted bar, spacing dish cover is established on the dwang and rather than sliding connection, spacing dish is close to a plurality of inserted bars of one side fixedly connected with of second fixed plate, is close to spacing dish one side a plurality of jacks have been seted up to the front side of second fixed plate, the inserted bar insert establish in the jack and rather than the joint, through establishing stop device with adding for when measuring the different deformation volume of spring, can fix the spring at any time, and fix a winding section of thick bamboo through inserted bar and jack joint, stop device simple structure, convenient operation.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) this scheme is through rotating the bobbin, drives and is connected the slide removal that the rope is connected for be connected with one end and spring dynamometer, the other end is connected with the measuring spring of the pull ring on the slide and is measured the volume of being stretched, through formula L2 pi rN (r is the radius of bobbin, N is the pivoted number of turns) calculation spring, traditional machinery pulling spring deformation compares, the bobbin is as the deformation power supply, the measurement accuracy of improvement spring deformation volume that can be great guarantees the production quality of spring.

(2) Through adding and establishing the spring dynamometer for the spring can measure the pulling force that the spring received when measuring the deformation volume, calculates the elastic coefficient of spring through formula elastic coefficient k ═ F/s (F is the size of spring atress, and s is the deformation volume of spring), thereby guarantees the production quality of spring.

(3) Through add on the bottom plate and establish the deformation volume that the scale can the recording spring, compare with the spring deformation volume that the bobbin calculated to guarantee the measurement accuracy of spring deformation, the scale adopts irony material to be connected with the magnet on the bottom plate simultaneously, thereby conveniently removes the scale.

(4) Through adding and establishing stop device for when measuring the different deformation volume of spring, can fix the spring at any time, and fix the winding section of thick bamboo through inserted bar and jack joint, stop device simple structure, convenient operation.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic view of the structure at A in FIG. 2;

fig. 4 is a sectional view of the first fixing plate of the present invention.

The reference numbers in the figures illustrate:

the device comprises a base plate 1, a first fixing plate 2, a sliding plate 3, a return spring 4, a first extrusion plate 5, a second extrusion plate 6, a threaded rod 7, a spring dynamometer 8, a pull ring 9, a second fixing plate 10, a rotating rod 11, a bobbin 12, a limiting disc 13, an inserted rod 14, a connecting rope 15, a graduated scale 16 and a sliding chute 17.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-4, a spring deformation measuring device comprises a base plate 1 and a spring dynamometer 8, the spring dynamometer 8 is located on the upper side of the base plate 1, (the model of the spring dynamometer 8 is SGNK, the spring dynamometer 8 can be a spring dynamometer 8 with different measuring ranges in the SGNK model because the unused measuring range spring dynamometer 8 needs to be replaced), the front end of the base plate 1 is provided with a magnet fixedly connected with the base plate 1, one end of the magnet far away from the base plate 1 is provided with a graduated scale 16 connected with the base plate in a sliding manner, the graduated scale 16 is made of a ferrous material, the deformation amount of the spring to be measured can be recorded by additionally arranging the graduated scale 16 on the base plate 1 and compared with the deformation amount of the spring to be measured calculated by the bobbin 12, so as to ensure the measuring accuracy of the deformation of the spring to be measured, and meanwhile, the graduated scale 16 is connected with the magnet on the base, the upper end of the bottom plate 1 is provided with a first fixing plate 2 fixedly connected with the bottom plate, the upper end of the bottom plate 1 is provided with a sliding groove 17, a sliding plate 3 is arranged in the sliding groove 17, the sliding groove 17 is arranged to limit the movement track of the sliding plate 3 on the bottom plate 1, so that the sliding plate 3 is prevented from deviating in the moving process and being subjected to external force outside the horizontal direction, the measurement precision is influenced, the sliding plate 3 is positioned on the right side of the first fixing plate 2, the lower end of the sliding plate 3 is provided with a sliding block in sliding connection with the sliding groove 17, the left end of the sliding plate 3 is provided with a pull ring 9 fixedly connected with the sliding plate, a cavity is arranged in the first fixing plate 2, the right end of the first fixing plate 2 is provided with a socket communicated,

referring to fig. 4, return springs 4 fixedly connected with the bottom end of a cavity in a first fixing plate 2 are symmetrically arranged at the bottom end of the cavity, a first extrusion plate 5 fixedly connected with the return springs 4 is arranged at the other end of the return springs 4, the first extrusion plate 5 is slidably connected with the side wall of the cavity, a threaded rod 7 in threaded connection with the first fixing plate 2 is inserted at the upper end of the first fixing plate 2, a second extrusion plate 6 in rotary connection with the threaded rod 7 is arranged at the lower end of the threaded rod 7, the second extrusion plate 6 is slidably connected with the side wall of the cavity, the second extrusion plate 6 is positioned above the first extrusion plate 5, a spring dynamometer 8 is positioned between the first extrusion plate 5 and the second extrusion plate 6, a spring dynamometer 8 is additionally arranged, so that the tension of the spring to be tested can be measured while the deformation amount is measured, and the elastic coefficient of the spring is calculated by the formula of elastic coefficient k ═ F/s (F is the magnitude of the spring stress, s, thereby guarantee the production quality of spring, through threaded rod 7 and 2 threaded connection of first fixed plate, drive second stripper plate 6 and remove downwards, fix spring dynamometer 8 through first stripper plate 5 and second stripper plate 6, prevent that spring dynamometer 8 from removing when measuring, the change of the spring dynamometer 8 of different ranges simultaneously, the upper end of bottom plate 1 still symmetry is equipped with second fixed plate 10 rather than fixed connection, second fixed plate 10 is located the right side of slide 3, the front end of second fixed plate 10 is inserted and is equipped with dwang 11 rather than rotation connection, one end of dwang 11 runs through one of them second fixed plate 10, the cover is equipped with spool 12 rather than fixed connection on dwang 11, spool 12 is located between two second fixed plate 10, the wind is equipped with on spool 12 and is connected rope 15, the one end of connecting rope 15 is connected with the right-hand member fixed connection of dynamometer slide 3, spring 8, The pull ring 9 and the connecting rope 15 are in the same horizontal plane, so that the stress of the spring to be detected in the horizontal direction is horizontal, no other component force is generated,

please refer to fig. 3, a limiting device is sleeved on the rotating rod 11, the limiting device is located at the front side of the second fixing plate 10, the limiting device is composed of a limiting disc 13 and an insertion rod 14, the limiting disc 13 is sleeved on the rotating rod 11 and is connected with the rotating rod in a sliding manner, one side of the limiting disc 13, which is close to the second fixing plate 10, is fixedly connected with a plurality of insertion rods 14, the front side of the second fixing plate 10, which is close to one side of the limiting disc 13, is provided with a plurality of insertion holes, the insertion rods 14 are inserted into the insertion holes and are clamped with the insertion holes, the limiting device is additionally arranged, so that when different deformation quantities of the spring are measured, the spring can be fixed at any time, the winding barrel 12 is fixed through the insertion rods 14 and the insertion hole.

When the deformation amount of the spring needs to be measured, firstly, two ends of the spring to be detected are respectively connected with a hanging ring of a spring dynamometer 8 and a pull ring 9 on a sliding plate 3, the position of a graduated scale 16 on a bottom plate 1 is adjusted, the graduated scale 16 is connected with a magnet on the bottom plate 1 by adopting a ferrous material, so that the graduated scale 16 is convenient to move, the starting end of the spring to be detected is aligned with a zero scale mark of the graduated scale 16, then, a rotating rod 11 is rotated, a winding drum 12 is driven to rotate through the rotating rod 11, a connecting rope 15 is wound on the winding drum 12, the sliding plate 3 is pulled to move towards the direction of a second fixing plate 10 along with the shortening of the connecting rope 15, the spring to be detected is stretched, after the spring is stretched to a certain position, a limiting plate 13 is pushed to move towards the direction of the second fixing plate 10, and an inserted link 14 on the limiting plate 13 is clamped, thereby fix bobbin 12, the stop device is simple in structure, and convenient in operation, record the number of turns of bobbin 12 rotation at the same time, calculate the deformation quantity of spring through the formula L2 pi rN (r is the radius of bobbin, N is the number of turns of rotation), compare the deformation quantity of traditional mechanical pulling spring, bobbin 12 is as deformation power source, the distance measuring accuracy of its motion is higher, can greatly improve the measuring accuracy of the spring deformation quantity, guarantee the production quality of spring, record the deformation quantity of spring through graduated scale 16 at the same time, two data compare, improve the measuring accuracy of spring deformation, can realize accurate measurement to the deformation quantity of spring, connect with slide 3 of fixed spring through connecting rope 15, rotate bobbin 12 again, rotate through bobbin 12, drive connecting rope 15 around establishing on bobbin 12, and then drive slide 3 to move, make the deformation volume of spring can calculate through L2 pi rN (r is the radius of bobbin, and N is the pivoted number of turns), add on measuring device simultaneously and establish scale 16, compare through the measured value of scale 16 and the numerical value of calculating of formula to improve the measurement of spring deformation precision, guarantee the production quality of spring.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims (4)

1. The utility model provides a spring deformation measuring device, includes bottom plate (1) and spring dynamometer (8), its characterized in that: the spring dynamometer (8) is positioned on the upper side of the bottom plate (1), a first fixing plate (2) fixedly connected with the bottom plate is arranged at the upper end of the bottom plate (1), a sliding groove (17) is arranged at the upper end of the bottom plate (1), a sliding plate (3) is arranged in the sliding groove (17), the sliding plate (3) is positioned on the right side of the first fixing plate (2), a sliding block slidably connected with the sliding groove (17) is arranged at the lower end of the sliding plate (3), a pull ring (9) fixedly connected with the sliding plate (3) is arranged at the left end of the sliding plate (3), a cavity is arranged in the first fixing plate (2), a socket communicated with the cavity is arranged at the right end of the first fixing plate (2), the spring dynamometer (8) is inserted in the socket and slidably connected with the socket, a second fixing plate (10) fixedly connected with the bottom plate (1) is symmetrically arranged at the upper end of the bottom plate (1), and the second fixing, the front end of second fixed plate (10) is inserted and is equipped with rather than rotating dwang (11) of being connected, one of them second fixed plate (10) is run through to the one end of dwang (11), the cover is equipped with bobbin (12) rather than fixed connection on dwang (11), bobbin (12) are located between two second fixed plates (10), around being equipped with on bobbin (12) and connecting rope (15), the one end of connecting rope (15) and the right-hand member fixed connection of slide (3), spring dynamometer (8), pull ring (9) and connection rope (15) are in same horizontal plane, the cover is equipped with stop device on dwang (11), stop device is located the front side of second fixed plate (10).

2. A spring deformation measuring device in accordance with claim 1, wherein: the bottom symmetry of cavity is equipped with reset spring (4) rather than fixed connection in first fixed plate (2), the other end of reset spring (4) is equipped with rather than fixed connection's first stripper plate (5), the lateral wall sliding connection of first stripper plate (5) and cavity, the upper end of first fixed plate (2) is inserted and is equipped with threaded rod (7) rather than threaded connection, the lower extreme of threaded rod (7) is equipped with rather than second stripper plate (6) of rotating the connection, the lateral wall sliding connection of second stripper plate (6) and cavity, and second stripper plate (6) are located the top of first stripper plate (5), spring dynamometer (8) are located between first stripper plate (5) and second stripper plate (6).

3. A spring deformation measuring device in accordance with claim 1, wherein: the front end of bottom plate (1) is equipped with rather than fixed connection's magnet, the one end that bottom plate (1) was kept away from to magnet is equipped with rather than sliding connection's scale (16), scale (16) are made by iron material.

4. A spring deformation measuring device in accordance with claim 1, wherein: stop device comprises spacing dish (13) and inserted bar (14), spacing dish (13) cover is established on dwang (11) and rather than sliding connection, spacing dish (13) are close to a plurality of inserted bars (14) of one side fixedly connected with of second fixed plate (10), are close to spacing dish (13) one side the front side of second fixed plate (10) is seted up and is equipped with a plurality of jacks, inserted bar (14) are inserted and are established in the jack and rather than the joint.

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