CN207163387U - Concentricity measures cubing - Google Patents

Abstract

It the utility model is related to a kind of concentricity measurement cubing, including cubing body, driving wheel installation axle, driven pulley installation axle, driving wheel, driven pulley, mounting seat, pinch wheels installation axle, pinch wheels and the axis of guide, driving wheel installation axle, driven pulley installation axle is installed in inspection particularly, driving wheel, driven pulley is separately fixed at the driving wheel installation axle, in driven pulley installation axle, driving wheel, driven pulley is oppositely arranged up and down, pinch wheels installation axle is arranged in mounting seat, pinch wheels are fixed in pinch wheels installation axle, the axis of guide is connected through mounting seat and with cubing body phase, spring is arranged with the axis of guide, one end of spring abuts with cubing body, the other end abuts with mounting seat, the outer peripheral face of the pinch wheels outer peripheral face with driving wheel respectively, the outer peripheral face of driven pulley is in close contact.The utility model can be quickly measured single benchmark concentricity of step shaft-like workpiece and circular runout, and measurement accuracy is high, and measurement efficiency is high, the in-site measurement particularly suitable for high-volume workpiece.

Description

Concentricity measuring fixture

technical field

The utility model relates to a measuring and checking tool, in particular to a concentricity measuring and checking tool.

Background technique

The existing measurement of the concentricity of stepped shaft parts mainly adopts three-coordinate measuring machine or V-shaped block measurement. The three-coordinate measuring machine is expensive and has high environmental requirements; while the V-shaped block measurement has low environmental requirements, but the measurement accuracy is low and the measurement efficiency is low. Both of the above two structures cannot solve the problem of measuring the concentricity and radial runout of high-precision and large-scale parts.

Utility model content

The utility model overcomes the shortcomings of the prior art and provides a concentricity measuring and checking tool with a simple structure.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a concentricity measuring and checking tool, including the checking body, the driving wheel installation shaft, the driven wheel installation shaft, the driving wheel, the driven wheel, the mounting seat, and the clamping wheel installation shaft , the clamping wheel and the guide shaft, the driving wheel installation shaft and the driven wheel installation shaft are all installed on the inspection body, and the driving wheel and the driven wheel are respectively fixed on the driving wheel installation shaft and the driven wheel installation shaft , the driving wheel and the driven wheel are set up and down oppositely, the mounting shaft of the clamping wheel is installed on the mounting seat, the clamping wheel is fixed on the mounting shaft of the clamping wheel, and the guide shaft passes through the The mounting seat is connected with the inspection body, the guide shaft is covered with a spring, one end of the spring is in contact with the inspection body, and the other end is in contact with the installation seat, and the clamping wheel The outer peripheral surface of the driving wheel is in close contact with the outer peripheral surface of the driving wheel and the outer peripheral surface of the driven wheel respectively.

In a preferred embodiment of the present invention, the concentricity measuring and checking tool further includes the checking body including a stand with a through hole, and the stand is provided with a first through hole, a second through hole, a third through hole holes and installation holes, the first through hole and the second through hole are set up and down, the two ends of the guide shaft are respectively placed in the third through hole and the installation hole, and both sides of the bottom end of the stand are provided with groove.

In a preferred embodiment of the present invention, the concentricity measuring and checking tool further includes an arc-shaped hole arranged on a side wall of the through hole.

In a preferred embodiment of the present utility model, the concentricity measuring and checking tool further includes the mounting seat including a mounting base body and two side plates extending downward along the bottom end of the mounting base body, and the mounting base body The upper end is provided with a fourth through hole, the lower end of the mounting seat body is provided with a fifth through hole, the guide shaft passes through the fifth through hole, and the opposite sides of the two side plates are provided with rotating wheels. The two rotating wheels are respectively placed in the two grooves.

In a preferred embodiment of the present invention, the concentricity measuring and testing tool further includes a pair of first rolling bearings, the pair of first rolling bearings are installed in the first through hole, and the driving wheel installation shaft passes through The pair of first rolling bearings.

In a preferred embodiment of the present invention, the concentricity measuring and testing tool further includes a hand wheel, and the hand wheel is connected to the drive wheel installation shaft.

In a preferred embodiment of the present invention, the concentricity measuring and testing tool further includes a pair of second rolling bearings, the pair of second rolling bearings are installed in the second through hole, and the driven wheel installation shaft passes through The pair of second rolling bearings.

In a preferred embodiment of the present invention, the concentricity measuring and testing tool further includes a pair of third rolling bearings, the pair of third rolling bearings are installed in the fourth through hole, and the mounting shaft of the clamping wheel passes through through the pair of third rolling bearings.

The utility model solves the defects in the background technology. The utility model has a simple structure and is easy to measure. It can quickly measure the single reference concentricity and radial runout of the step shaft workpiece, and can be replaced according to the actual size of the workpiece to be measured. The driving wheel and the driven wheel or the clamping wheel change the measurement range of the measured shaft, and the measurement accuracy is high, the measurement efficiency is high, the workpiece is disassembled quickly, and the measurement value repeatability is good. It is especially suitable for the on-site measurement of a large number of workpieces and solves the problem of high The problem of measuring the concentricity and radial runout of high-precision large-scale workpieces.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the exploded structure schematic diagram of the preferred embodiment of the present utility model;

Fig. 2 is a schematic structural view of the spring in the initial state of a preferred embodiment of the utility model;

Fig. 3 is the three-dimensional view of the inspection body of the preferred embodiment of the present utility model;

Fig. 4 is the left view of Fig. 3;

Fig. 5 is the A-A direction sectional view of Fig. 4;

Fig. 6 is a schematic structural view of a mounting seat of a preferred embodiment of the present invention;

Fig. 7 is a schematic view of the structure of the measured shaft when the spring is compressed in the preferred embodiment of the present invention;

Fig. 8 is a schematic structural diagram of a preferred embodiment of the present invention during measurement.

Detailed ways

The utility model is described in further detail now in conjunction with accompanying drawing and embodiment, and these accompanying drawings all are simplified schematic diagrams, only illustrate the basic structure of the utility model in schematic mode, so it only shows the formation relevant to the utility model.

As shown in Figure 1-Figure 6, a concentricity measurement inspection tool includes inspection body 2, driving wheel installation shaft 4, driven wheel installation shaft 6, driving wheel 8, driven wheel 10, mounting seat 12, clamping wheel installation Shaft 14, clamping wheel 16 and guide shaft 18, driving wheel installation shaft 4 and driven wheel installation shaft 6 are all installed on the inspection body 2, driving wheel 8 is fixed on driving wheel installation shaft 4, driven wheel 10 is fixed on the driven wheel On the mounting shaft 6, the driving wheel 8 and the driven wheel 10 are arranged relatively up and down, the clamping wheel mounting shaft 14 is installed on the mounting seat 12, the clamping wheel 16 is fixed on the clamping wheel mounting shaft 14, and the guide shaft 18 passes through the mounting seat 12 and is connected with the inspection body 2, the guide shaft 18 is sleeved with a spring 20, the spring 20 is in a slightly compressed state, one end of the spring 20 is in contact with the inspection body 2, and the other end is in contact with the mounting seat 12, and the clamping wheel 16 The outer peripheral surface of the driving wheel 8 is in close contact with the outer peripheral surface of the driven wheel 10 respectively.

As shown in Fig. 3-Fig. 5, the preferred inspection body 2 of the present utility model includes a stand 22 provided with a through hole 21, and the stand 22 is provided with a first through hole 24, a second through hole 26, and a third through hole 28. With the installation hole 29, the first through hole 24 and the second through hole 26 are located on the same side of the through hole 21, the first through hole 24 and the second through hole 26 are arranged up and down, and the third through hole 28 and the installation hole 29 are arranged along the horizontal direction. Relatively set, the third through hole 28 and the mounting hole 29 are all connected with the through hole 21, the two ends of the guide shaft 18 are inserted into the third through hole 28 and the mounting hole 29 respectively, and both sides of the bottom end of the stand 22 are provided with There are grooves 30 . It is further preferred that an arc-shaped hole 31 is provided on the side wall of the through hole 21 to avoid interference with the measured shaft, and is suitable for measured shafts of different sizes with a wide range of applications. Further preferably, the mounting hole 29 is a threaded hole, and one end of the guide shaft 18 extending into the mounting hole 29 is provided with an external thread (not shown in the figure), and the threaded end of the guide shaft 18 is screwed in the mounting hole 29 to avoid the guide shaft 18 move.

As shown in Figure 6, the preferred mounting base 12 of the present invention includes a mounting base body 32, two side plates 34 extending downward along the bottom end of the mounting base body 32, and a fourth through hole 36 is provided at the upper end of the mounting base body 32. The lower end of the mounting seat body 32 is provided with a fifth through hole 38, the guide shaft 18 passes through the fifth through hole 38, and the opposite sides of the two side plates 34 are provided with rotating wheels 40, and the two rotating wheels 40 are respectively inserted into two In the two grooves 30, two rotating wheels 40 move horizontally along the two grooves 30 respectively.

In order to facilitate the rotation of the driving wheel installation shaft 4 , a pair of first rolling bearings 42 are also included. The pair of first rolling bearings 42 are installed in the first through hole 24 , and the driving wheel installation shaft 4 passes through the pair of first rolling bearings 42 .

Also includes a hand wheel 44, the hand wheel 44 is connected with the driving wheel installation shaft 4, and the driving wheel installation shaft 4 is driven to rotate by rotating the hand wheel 44, thereby driving the driving wheel 8 to rotate.

In order to facilitate the rotation of the driven wheel installation shaft 6 , a pair of second rolling bearings 46 are also included, and the pair of second rolling bearings 46 are installed in the second through hole 26 , and the driven wheel installation shaft 6 passes through the pair of second rolling bearings 46 .

In order to facilitate the rotation of the clamping wheel mounting shaft 14 , a pair of third rolling bearings 48 is also included. The pair of third rolling bearings 48 are installed in the fourth through hole 36 , and the clamping wheel mounting shaft 14 passes through the pair of third rolling bearings 48 .

When the utility model is measuring, the mounting seat 2 is pushed by hand to move along the guide shaft 3, at this time the spring 4 is further compressed, as shown in Figure 7, the reference cylinder 52 of the measured shaft 50 is packed into the driving wheel 8 and the driven wheel 10 and the clamping wheel 16, the common tangent circle of the driving wheel 8, the driven wheel 10 and the clamping wheel 16 is used as the clamping circle of the reference cylinder 52, as shown in Figure 8, the measuring head of the dial indicator is placed on the measured On the upper generatrix of the measured cylinder 54 of the shaft 50, the hand wheel 44 is turned, and the friction force between the three circles of the driving wheel 8, the driven wheel 10 and the clamping wheel 16 and the reference cylinder 52 of the measured shaft 50, the friction force Generated by the pressure of the spring 20, the measured shaft 50 is rotated, and the concentricity or radial runout error of the measured cylinder 54 relative to the reference cylinder 52 is obtained by observing the change of the pointer of the dial indicator touched on the measured cylinder 54 . The dial gauge used in the measurement can also be replaced by a dial gauge.

The above is inspired by the ideal embodiment of the utility model, and through the above description, relevant personnel can make various changes and modifications within the scope of not deviating from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, and must be determined according to the scope of the claims.

Claims (8)

1. a kind of concentricity measures cubing, it is characterised in that：Including cubing body, driving wheel installation axle, driven pulley installation axle, active Wheel, driven pulley, mounting seat, pinch wheels installation axle, pinch wheels and the axis of guide, the driving wheel installation axle, driven pulley installation axle are equal Installed in the inspection particularly, the driving wheel, driven pulley are separately fixed at the driving wheel installation axle, driven pulley installation axle On, the driving wheel, driven pulley are oppositely arranged up and down, and the pinch wheels installation axle is arranged in the mounting seat, the clamping Wheel is fixed in the pinch wheels installation axle, and the axis of guide is connected through the mounting seat and with the cubing body phase, described Spring is arranged with the axis of guide, one end of the spring abuts with the cubing body, and the other end abuts with the mounting seat, described The outer peripheral face with the driving wheel, the outer peripheral face of driven pulley are in close contact the outer peripheral face of pinch wheels respectively.

2. concentricity according to claim 1 measures cubing, it is characterised in that：The inspection is specifically included provided with through hole Stand, first through hole, the second through hole, third through-hole and mounting hole are offered on the stand, and the first through hole is logical with second Hole is setting up and down, and the both ends of the axis of guide are respectively implanted in third through-hole and mounting hole, and the bottom both sides of the stand are all provided with It is equipped with groove.

3. concentricity according to claim 2 measures cubing, it is characterised in that：It is provided with one side wall of the through hole Arcuate socket.

4. concentricity according to claim 2 measures cubing, it is characterised in that：The mounting seat includes mounting body, edge Two side plates that the bottom of the mounting body extends downwardly, the upper end of the mounting body are provided with fourth hole, the peace The lower end of dress pedestal is provided with fifth hole, and the axis of guide passes through the fifth hole, and the opposite side of two side plates is equal Rotating wheel is provided with, two rotating wheels are respectively implanted in two grooves.

5. concentricity according to claim 2 measures cubing, it is characterised in that：Also include a pair of first rolling bearings, institute State a pair of first rolling bearings to be arranged in the first through hole, the driving wheel installation axle passes through the pair of first axis of rolling Hold.

6. concentricity measurement cubing according to claim 1 or 5, it is characterised in that：Also include handwheel, the handwheel and institute Driving wheel installation axle is stated to be connected.

7. concentricity according to claim 2 measures cubing, it is characterised in that：Also include a pair of second rolling bearings, institute State a pair of second rolling bearings to be arranged in second through hole, the driven pulley installation axle passes through the pair of second axis of rolling Hold.

8. concentricity according to claim 4 measures cubing, it is characterised in that：Also include a pair of the 3rd rolling bearings, institute State a pair of the 3rd rolling bearings to be arranged in the fourth hole, the pinch wheels installation axle passes through the pair of 3rd axis of rolling Hold.