CN212513460U - Force cell calibration system - Google Patents

Abstract

The utility model discloses a belongs to the technical field of force cell calibration, specifically a force cell calibration system, which comprises a bottom plate, the left and right sides of the top of the bottom plate are both fixedly connected with a side plate, the left and right sides of the upper end between the side plates is fixedly connected with a top plate, the middle part of the top plate is screwed with a screw rod, the bottom of the screw rod is rotatably connected with an upper push plate, the lower side of the upper push plate is fixedly connected with a spring, the lower end of the spring is fixedly connected with a lower push plate, the upper push plate is vertically corresponding to the lower push plate, the lower side of the lower push plate is provided with a reference force sensor, the lower side of the reference force sensor is connected with a thrust rod through a screw, the height of a mounting seat can be adjusted through the arrangement of an electric push rod, and the situation, resulting in being unable to calibrate, thereby the utility model discloses can calibrate the force cell sensor of multiple model.

Description

Force cell calibration system

Technical Field

The utility model relates to a force cell calibration technical field specifically is a force cell calibration system.

Background

Calibration is to use a standard measuring instrument to detect whether the accuracy (precision) of the instrument meets the standard, and is generally used in instruments with high precision. When the force sensor is manufactured or the force measurement error is large, the force sensor needs to be calibrated through a calibration system.

Most of the existing calibration systems can only calibrate a single force measuring sensor with a certain model, and have certain limitations; when the existing calibration system is used for calibrating the force transducer, the operation is complex.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a force cell calibration system to solve the problem that most of the existing calibration systems proposed in the background art can only calibrate a single force cell with a certain model, and have certain limitation; the existing calibration system has the problem of complex operation when calibrating the force transducer.

In order to achieve the above object, the utility model provides a following technical scheme: a force transducer calibration system comprises a bottom plate, wherein side plates are fixedly connected to the left side and the right side above the bottom plate, a top plate is fixedly connected to the upper end between the side plates on the left side and the right side, a screw is screwed in the middle of the top plate, an upper push plate is rotatably connected to the bottom of the screw, a spring is fixedly connected to the lower side of the upper push plate, a lower push plate is fixedly connected to the lower end of the spring, the upper push plate vertically corresponds to the lower push plate in position, a reference force sensor is mounted on the lower side of the lower push plate, a thrust rod is connected to the lower side of the reference force sensor through a screw, sliding grooves are formed in the lower portion of one side of a visual plane between the side plates on the left side and the right side, sliding blocks are connected in a sliding mode in the sliding grooves, an electric, the other end of the connecting plate is fixedly connected with the sliding block, the force measuring sensor is installed on the upper side of the installing seat, the reference force sensor corresponds to the force measuring sensor up and down, the reference force sensor and the force measuring sensor are both electrically connected with a controller, and a data acquisition and processing system is integrated in the controller.

Preferably, roof downside fixedly connected with gag lever post, the slide opening has all been seted up to the outside edge of push pedal and lower push pedal, the gag lever post runs through the slide opening, the gag lever post lower extreme is located the lower push pedal downside.

Preferably, the axis of the limiting rod is parallel to the axial direction of the lower push plate.

Preferably, the upper end of the screw rod is fixedly connected with a handle.

Preferably, the outer wall of the handle is provided with anti-skid grains.

Compared with the prior art, the beneficial effects of the utility model are that:

1) because the force transducers of different models are different in size, the height of the mounting seat can be adjusted through the arrangement of the electric push rod, and the situation that the force transducers cannot be calibrated due to the fact that the thrust rod cannot contact and extrude the force transducers because the force transducers are too high or too low is avoided, so that the force transducers of various models can be calibrated;

2) through the arrangement of the sliding groove and the sliding block, the mounting seat can move stably when the electric push rod adjusts the height of the mounting seat;

3) through the cooperation of gag lever post and slide opening, carry on spacingly to push up plate and lower push plate, avoid push up plate and lower push plate to appear crooked.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: the device comprises a base plate 1, a sliding groove 2, a sliding block 3, an electric push rod 4, a connecting plate 5, a mounting seat 6, a force measuring sensor 7, a thrust rod 8, a reference force sensor 9, a lower push plate 10, an upper push plate 11, a spring 12, a limiting rod 13, a screw rod 14, a handle 15, a sliding hole 16, a side plate 17 and a top plate 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope 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 (b):

referring to fig. 1, the present invention provides a technical solution: a force transducer calibration system comprises a bottom plate 1, wherein side plates 17 are fixedly connected to the left side and the right side above the bottom plate 1, the positions of the side plates 17 on the left side and the right side correspond to each other left and right, a top plate 18 is fixedly connected to the upper end between the side plates 17 on the left side and the right side, a screw 14 is screwed in the middle of the top plate 18, an upper push plate 11 is rotatably connected to the bottom of the screw 14, a spring 12 is fixedly connected to the lower side of the upper push plate 11, a lower push plate 10 is fixedly connected to the lower end of the spring 12, the upper push plate 11 corresponds to the lower push plate 10 up and down in position, a reference force sensor 9 is installed on the lower side of the lower push plate 10, a thrust rod 8 is connected to the lower side of the reference force sensor 9 through a screw, sliding grooves 2 are respectively formed below one side of a, bottom plate 1 middle part has electric putter 4 through screwed connection, electric putter 4 flexible end upside fixedly connected with mount pad 6, the equal fixedly connected with connecting plate 5 in the 6 left and right sides of mount pad, the connecting plate 5 other end and 3 fixed connection of slider, force cell sensor 7 is installed to 6 upsides of mount pad, benchmark force sensor 9 corresponds from top to bottom with force cell sensor 7, benchmark force sensor 9 is connected with the controller (not shown in the figure) with force cell sensor 7 equal electricity, the inside integrated data acquisition processing system that has of controller. The upper push plate 11 is driven to move downwards by rotating the screw rod 14, the upper push plate 11 pushes the lower push plate 10 downwards by the spring 12, so that the reference force sensor 9 is driven to move downwards, when the thrust rod 8 contacts the force sensor 7, the screw rod 14 is continuously rotated, the spring 12 is compressed, so that the thrust rod 8 pushes the force sensor 7 downwards, when the force displayed on the force sensor 7 and the force displayed on the reference force sensor 9 are the same or have small difference (multiple tests are carried out and accidental detection is avoided), the force sensor 7 is represented to be accurate and does not need to be calibrated, when the force displayed on the force sensor 7 and the force displayed on the reference force sensor 9 are large in difference, the force sensor 7 needs to be calibrated, the screw rod 14 is rotated for multiple times (not less than five times), so that the force values displayed by the reference force sensor 9 each time are different (the values form an equal difference number series), and the controller records the force values displayed by the reference force sensor 9 each time and the And transmitting the value of the code to the force measuring sensor 7 through the controller, and calibrating the force measuring sensor 7.

18 downside fixedly connected with gag lever post 13 of roof, gag lever post 13 quantity is no less than two, the draw runner 16 has all been seted up at the outside edge of push pedal 11 and lower push pedal 10, gag lever post 13 runs through draw runner 16, gag lever post 13 and 16 sliding connection of draw runner, 13 lower extremes of gag lever post are located push pedal 10 downside down, through gag lever post 13 and 16 setting of draw runner, make push pedal 11 and lower push pedal 10 can the steady movement, avoid crooked.

The axis of the limiting rod 13 is parallel to the axial direction of the lower push plate 10, and the lower push plate 10 and the upper push plate 11 are coaxially arranged.

The upper end of the screw rod 14 is fixedly connected with a handle 15, and the screw rod 14 can be conveniently rotated through the handle 15.

The outer wall of the handle 15 is provided with anti-slip lines, so that the friction force of a contact surface is increased.

The working principle is as follows: the upper push plate 11 is driven to move downwards by rotating the screw rod 14, the upper push plate 11 pushes the lower push plate 10 downwards by the spring 12, so that the reference force sensor 9 is driven to move downwards, when the thrust rod 8 contacts the force sensor 7, the screw rod 14 is continuously rotated, the spring 12 is compressed, so that the thrust rod 8 pushes the force sensor 7 downwards, when the force displayed on the force sensor 7 and the force displayed on the reference force sensor 9 are the same or have small difference (multiple tests are carried out and accidental detection is avoided), the force sensor 7 is represented to be accurate and does not need to be calibrated, when the force displayed on the force sensor 7 and the force displayed on the reference force sensor 9 are large in difference, the force sensor 7 needs to be calibrated, the screw rod 14 is rotated for multiple times (not less than five times), so that the force values displayed by the reference force sensor 9 each time are different (the values form an equal difference number series), and the controller records the force values displayed by the reference force sensor 9 each time and the Code value transmits the numerical value of many times of power and the interior code value that corresponds for force cell sensor 7 through the control appearance, marks force cell sensor 7, because the force cell sensor 7 variation in size of different models, through electric putter 4's setting, can adjust the height of mount pad 6, avoids force cell sensor 7 because too high or low excessively, makes the unable contact extrusion force cell sensor 7 of distance rod 8, leads to can not marking, thereby the utility model discloses can mark the force cell sensor 7 of multiple model.

Having shown and described the basic principles and principal features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A force transducer calibration system comprises a bottom plate (1), and is characterized in that: the device is characterized in that side plates (17) are fixedly connected to the left side and the right side above the bottom plate (1), a top plate (18) is fixedly connected to the upper end between the side plates (17) on the left side and the right side, a screw rod (14) is screwed in the middle of the top plate (18), an upper push plate (11) is rotatably connected to the bottom of the screw rod (14), a spring (12) is fixedly connected to the lower side of the upper push plate (11), a lower push plate (10) is fixedly connected to the lower end of the spring (12), the upper push plate (11) vertically corresponds to the lower push plate (10), a reference force sensor (9) is installed on the lower side of the lower push plate (10), a thrust rod (8) is connected to the lower side of the reference force sensor (9) through a screw, sliding grooves (2) are formed in the lower sides of one side of the viewing, bottom plate (1) middle part has electric putter (4) through the screw connection, electric putter (4) flexible end upside fixedly connected with mount pad (6), equal fixedly connected with connecting plate (5) of mount pad (6) left and right sides, the connecting plate (5) other end and slider (3) fixed connection, force cell sensor (7) are installed to mount pad (6) upside, benchmark force sensor (9) correspond from top to bottom with force cell sensor (7), benchmark force sensor (9) are connected with the equal electricity of force cell sensor (7) and are had the controller, the inside integration of controller has data acquisition processing system.

2. The load cell calibration system of claim 1, wherein: roof (18) downside fixedly connected with gag lever post (13), draw runner (16) have all been seted up to the outside edge of push-up plate (11) and lower push-down plate (10), draw runner (16) are run through in gag lever post (13), gag lever post (13) lower extreme is located push-down plate (10) downside down.

3. A load cell calibration system as defined in claim 2, wherein: the axis of the limiting rod (13) is parallel to the axial direction of the lower push plate (10).

4. The load cell calibration system of claim 1, wherein: the upper end of the screw rod (14) is fixedly connected with a handle (15).

5. The load cell calibration system of claim 4, wherein: the outer wall of the handle (15) is provided with anti-skid grains.

Images