CN214620907U

CN214620907U - Steel ruler calibrating device

Info

Publication number: CN214620907U
Application number: CN202121164678.5U
Authority: CN
Inventors: 赵一党
Original assignee: Tianjin Jinse Fangyuan Instrument And Meter Co ltd
Current assignee: Tianjin Jinse Fangyuan Instrument And Meter Co ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-11-05
Anticipated expiration: 2031-05-28

Abstract

The utility model relates to a examination technical field discloses a steel ruler calibrating installation, comprising a base plate, the bottom plate upper end is connected with the fixed plate, install fixed stop gear on the bottom plate, two sets of fixed pipe symmetric connections have the upper end of bottom plate, the intraductal socle of fixed pipe is connected with the spring, the spring other end is connected with the dead lever, the fixed pipe mouth of pipe that corresponds is all worn to two sets of dead levers upper ends and upwards extends and be connected with and place the board, and place board sliding connection on the fixed plate, the fixed plate is close to two limiting plates of symmetric connection on the lateral wall of placing board one side, the spout has all been seted up on the lateral wall of two limiting plates opposite sides, sliding connection has the slider in the spout, the one end of two blocks of sliders opposite sides all is connected with the stopper. The utility model discloses a set up simple mechanical structure and carry out spacing fixed to the steel ruler, prevent to take place the skew in the verification process, it is great to lead to the numerical value error, easy operation is convenient, and save time improves work efficiency.

Description

Steel ruler calibrating device

Technical Field

The utility model relates to a examine and determine technical field, especially relate to a steel ruler calibrating installation.

Background

The measurement of the indication error of the straight steel ruler is based on the principle that the indication value of the scribed line of the measurement point of the straight steel ruler is compared with a standard value, and the obtained physical difference is the indication error of the measurement point. In the metrology field, in addition to the requirement for the use of dual frequency laser interferometers by first-order gauges, other gauges have in most cases used high-level gauge index transfer methods for index error measurement.

However, when the conventional straightedge is checked, the straightedge is generally inconvenient to fix, and is easy to deviate in the checking process, so that the error is large, and the accuracy of numerical values is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the current steel ruler of examining time, generally inconvenient fixes the steel ruler, is carrying out the verification in-process, takes place the skew easily, leads to the error great, influences the problem of the accuracy of numerical value, and the steel ruler calibrating installation that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a steel ruler calibrating device comprises a bottom plate, wherein the upper end of the bottom plate is connected with a fixing plate, and a fixing limiting mechanism is arranged on the bottom plate;

the fixed limiting mechanism comprises two groups of fixed pipes, the two groups of fixed pipes are symmetrically connected with the upper end of a bottom plate, the bottom of each fixed pipe is connected with a spring, the other end of each spring is connected with a fixed rod, the upper ends of the two groups of fixed rods penetrate through the corresponding pipe orifices of the fixed pipes and extend upwards and are connected with a placing plate, the placing plate is connected with the fixed plate in a sliding manner, the side wall of the fixed plate close to one side of the placing plate is symmetrically connected with two limiting plates, the side walls of the two limiting plates on opposite sides are respectively provided with a sliding groove, the sliding grooves are connected with sliding blocks in a sliding manner, one end of each sliding block on opposite sides penetrates through the corresponding groove opening of the corresponding sliding groove and extends outwards and is respectively connected with a limiting block, the side wall of each sliding block is provided with a threaded hole, a lead screw is connected with the threaded hole in a threaded manner, the lead screw penetrates through the threaded hole, one end of the lead is connected with the fixed plate through a bearing, and the bearing is inlayed on the lateral wall of fixed plate, is located two install standard gage plate on the fixed plate lateral wall of stopper top.

Preferably, the sliding chute is internally and fixedly connected with a sliding rod, the sliding rod penetrates through the sliding block, and the sliding block is connected to the sliding rod in a sliding mode.

Preferably, rolling grooves are formed in the side walls of the opposite sides of the two sliding blocks, rolling balls are arranged in the rolling grooves, the balls penetrate through notches of the rolling grooves, and the balls are connected to the bottoms of the sliding grooves in a rolling mode.

Preferably, a rotating block is installed at one end, far away from the fixed plate, of the screw rod.

Preferably, a handle is arranged at the center of the lower end of the placing plate.

Preferably, a sponge sleeve is arranged on the side wall of the handle.

Compared with the prior art, the utility model provides a steel ruler calibrating installation possesses following beneficial effect:

1. this straightedge calibrating installation fixes the straightedge through setting up mutually supporting between limiting plate, spout, slider, stopper, screw hole, lead screw, bearing and the standard gage plate isotructure, prevents to take place the skew at the verification in-process, leads to numerical error great.

2. This steel ruler calibrating installation is spacing to the steel ruler through setting up fixed pipe, spring, dead lever and placing mutually supporting between the board isotructure, easy operation is convenient, and save time improves work efficiency.

Drawings

Fig. 1 is a schematic structural view of a steel ruler calibrating device provided by the utility model;

fig. 2 is a front view of a calibrating device for a steel ruler according to the present invention;

fig. 3 is a side view of a calibrating device for a steel ruler according to the present invention;

fig. 4 is a schematic view of the internal structure of a fixed tube in the calibration device for a straight steel ruler according to the present invention;

fig. 5 is an enlarged view of a portion a in fig. 1.

In the figure: 1. a base plate; 2. a fixing plate; 3. a fixed tube; 4. a spring; 5. fixing the rod; 6. placing the plate; 7. a limiting plate; 8. a chute; 9. a slider; 10. a limiting block; 11. a threaded hole; 12. a screw rod; 13. a bearing; 14. a standard measuring plate; 15. a slide bar; 16. a rolling groove; 17. a ball bearing; 18. rotating the block; 19. a handle; 20. a sponge sleeve.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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 simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-5, the calibrating device for the steel ruler comprises a base plate 1, wherein the upper end of the base plate 1 is connected with a fixing plate 2, and a fixing and limiting mechanism is arranged on the base plate 1;

the fixed limiting mechanism comprises two groups of fixed tubes 3, the two groups of fixed tubes 3 are symmetrically connected with the upper end of a bottom plate 1, the bottom of the inner tube of each fixed tube 3 is connected with a spring 4, the other end of each spring 4 is connected with a fixed rod 5, the upper ends of the two groups of fixed rods 5 respectively penetrate through the tube orifices of the corresponding fixed tubes 3 and extend upwards and are connected with a placing plate 6, the placing plate 6 is connected on a fixed plate 2 in a sliding manner, two limiting plates 7 are symmetrically connected on the side wall of the fixed plate 2 close to one side of the placing plate 6, sliding grooves 8 are respectively arranged on the side walls of the two limiting plates 7 on opposite sides, sliding blocks 9 are respectively connected in the sliding grooves 8 in a sliding manner, one ends of the two sliding blocks 9 on opposite sides respectively penetrate through the notches of the corresponding sliding grooves 8 and extend outwards and are respectively connected with limiting blocks 10, threaded holes 11 are arranged on the side walls of the sliding blocks 9, lead screws 12 are connected with threaded holes 11 in a threaded hole 11, one end of the lead screws 12 is connected on the fixed plate 2 through bearings 13, and the bearing 13 is inlaid on the side wall of the fixed plate 2, the side wall of the fixed plate 2 above the two limit blocks 10 is provided with a standard gauge plate 14, a vertical downward acting force is firstly applied to the placing plate 6, the placing plate 6 can move vertically downward under the acting force, the movement of the placing plate 6 can drive the fixed rod 5 to move vertically downward in the fixed pipe 3, the movement of the fixed rod 5 can compress the spring 4 to deform, when the placing plate 6 moves to a specified position, a steel ruler to be verified is placed on the placing plate 6, then the external force to the placing plate 6 is cancelled, at the moment, the spring 4 is reset, the spring 4 can drive the fixed rod 5 to move vertically upward, the movement of the fixed rod 5 can drive the placing plate 6 to move vertically upward, the movement of the placing plate 6 can drive the steel ruler to move vertically upward, when the placing plate 6 moves to the specified position, ruler will be spacing through limiting plate 7 and place board 6, rotating lead screw 12, lead screw 12's rotation will drive slider 9 through the screw thread in the screw hole 11 and be horizontal fore-and-aft motion in spout 8, slider 9's motion will drive stopper 10 and be horizontal fore-and-aft motion, stopper 10's motion will produce the effort to the ruler, the ruler receives the effort and will be horizontal fore-and-aft motion, when the ruler moves the assigned position, stopper 10 will fix the ruler, at this moment, rethread standard gauge plate 14 examines and determine the ruler, elastic potential energy through utilizing spring 4 carries on spacingly to the ruler, recycle lead screw 12 and fix the ruler, and easy operation is convenient, the time saving, and the work efficiency is improved.

Slide bar 15 is fixedly connected with in the spout 8, and slide bar 15 runs through slider 9 and sets up, and slider 9 sliding connection prevents that slider 9 from breaking away from in the spout 8 on slide bar 15.

Rolling grooves 16 are formed in the side walls of the opposite back sides of the two sliding blocks 9, rolling balls 17 are arranged in the rolling grooves 16, the rolling balls 17 penetrate through notches of the rolling grooves 16, the rolling balls 17 are connected to the bottoms of the sliding grooves 8 in a rolling mode, and friction force between the sliding blocks 9 and the sliding grooves 8 is reduced.

And a rotating block 18 is arranged at one end of the screw rod 12 far away from the fixed plate 2, so that the screw rod 12 can be conveniently rotated.

A handle 19 is arranged at the center of the lower end of the placing plate 6, so that acting force can be applied to the placing plate 6 conveniently.

The sponge sleeve 20 is arranged on the side wall of the handle 19, so that the pressure between the handle and the handle 19 is buffered, and the comfort level is improved.

In the utility model, a vertical downward acting force is firstly exerted on the placing plate 6, the placing plate 6 moves vertically downwards when being acted by the acting force, the moving of the placing plate 6 generates the acting force on the fixing rod 5, the fixing rod 5 moves vertically downwards in the fixing tube 3 when being acted by the acting force, the moving of the fixing rod 5 generates the acting force on the spring 4, the spring 4 is compressed when being acted by the acting force and deforms, when the placing plate 6 moves to a specified position, a steel ruler to be detected is placed on the placing plate 6, then the external force to the placing plate 6 is cancelled, at the moment, the spring 4 resets, the spring 4 drives the fixing rod 5 to move vertically upwards, the moving of the fixing rod 5 drives the placing plate 6 to move vertically upwards, the moving of the placing plate 6 drives the steel ruler to move vertically upwards, when the placing plate 6 moves to the specified position, the straightedge is limited by the limiting plate 7 and the placing plate 6, when the screw rod 12 is rotated, the rotation of the screw rod 12 can generate acting force on the slide block 9 through the screw thread in the threaded hole 11, the slide block 9 can do horizontal longitudinal movement in the chute 8 when receiving the acting force, the movement of the slide block 9 can generate acting force on the limiting block 10, the limiting block 10 can do horizontal longitudinal movement when receiving the acting force, the movement of the limiting block 10 can generate acting force on the straightedge, the straightedge can do horizontal longitudinal movement when receiving the acting force, when the straight steel ruler moves to a specified position, the limiting block 10 fixes the straight steel ruler, at the moment, the straight steel ruler is calibrated through the standard gauge plate 14, the steel ruler is limited by utilizing the elastic potential energy of the spring 4, and the steel ruler is fixed by utilizing the screw rod 12, so that the operation is simple and convenient, the time is saved, and the working efficiency is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The calibrating device for the steel ruler comprises a base plate (1), and is characterized in that a fixing plate (2) is connected to the upper end of the base plate (1), and a fixing and limiting mechanism is mounted on the base plate (1);

the fixed limiting mechanism comprises two groups of fixed pipes (3), the two groups of fixed pipes (3) are symmetrically connected with the upper end of a bottom plate (1), the bottom of the inner pipe of each fixed pipe (3) is connected with a spring (4), the other end of each spring (4) is connected with a fixed rod (5), the upper ends of the two groups of fixed rods (5) penetrate through the pipe orifices of the corresponding fixed pipes (3), extend upwards and are connected with a placing plate (6), the placing plate (6) is connected onto the fixed plate (2) in a sliding manner, the side wall of one side, close to the placing plate (6), of the fixed plate (2) is symmetrically connected with two limiting plates (7), the side walls of the two limiting plates (7) on opposite sides are respectively provided with a sliding chute (8), each sliding chute (8) is connected with a sliding block (9) in a sliding manner, one end of each sliding block (9) on opposite sides penetrates through the corresponding sliding chute (8) and extends outwards and is connected with a limiting block (10), threaded hole (11) have been seted up on the lateral wall of slider (9), threaded hole (11) female connection has lead screw (12), lead screw (12) pass threaded hole (11) and set up, the one end of lead screw (12) is passed through bearing (13) and is connected on fixed plate (2), and bearing (13) inlay on the lateral wall of fixed plate (2), is located two install standard gage plate (14) on fixed plate (2) lateral wall of stopper (10) top.

2. The calibrating device for the straightedge made of steel as claimed in claim 1, wherein a sliding rod (15) is fixedly connected in the sliding groove (8), the sliding rod (15) is arranged through the sliding block (9), and the sliding block (9) is slidably connected to the sliding rod (15).

3. The calibrating device for the straight steel ruler as claimed in claim 1, wherein rolling grooves (16) are formed in the side walls of the opposite sides of the two sliding blocks (9), rolling balls (17) are arranged in the rolling grooves (16), the rolling balls (17) penetrate through the notches of the rolling grooves (16), and the rolling balls (17) are connected to the bottoms of the sliding grooves (8) in a rolling mode.

4. The calibrating device for the straightedge made of steel as claimed in claim 1, wherein the end of the screw rod (12) remote from the fixed plate (2) is provided with a turning block (18).

5. A straightedge calibrating device according to claim 1, wherein a handle (19) is mounted at the center of the lower end of the placing plate (6).

6. A straightedge calibrating device according to claim 5, wherein a sponge sleeve (20) is mounted on the side wall of said handle (19).