CN219841905U - Axle type product detection device - Google Patents

Abstract

The utility model provides a shaft product detection device which comprises a base, wherein a supporting rod is fixed on the base in the vertical direction, and a sleeve is fixed on the supporting rod; a through hole is formed in the top wall of the sleeve, and a stepped piston with an inverted T-shaped longitudinal section is arranged in the sleeve; a piston rod extending downwards is arranged on the bottom surface of the piston; the bottom end of the sleeve is provided with a bottom cover, a hole for the piston rod to pass through is arranged in the middle of the bottom cover, and an elastic part which can generate elasticity after being compressed is arranged between the bottom cover and the piston; and a dial indicator is fixedly arranged on the rod body of the supporting rod at the lower part of the sleeve. The utility model has simple structure, easy operation, low technical level requirement on inspectors and simple training.

Description

Axle type product detection device

Technical Field

The utility model relates to the technical field of detection jigs, in particular to a shaft product detection device.

Background

For shaft products with steps, the length of the shoulder from the end face is detected by a special detecting instrument such as a height instrument. The height gauge detects although more accurate, when using the probe of height gauge to detect the size of shaft shoulder to terminal surface, must use special positioning jig to make the accurate location of axle class spare, and every measure a part, the amesdial all need be zeroed, and this is to big, and the spare part that needs all to detect in batches, and the work load that detects is very big.

Disclosure of Invention

In view of the above, the utility model provides a shaft product detection device which can obtain the size from a shaft shoulder to a shaft head by measuring the stroke of a piston rod arranged in a sleeve by a dial gauge.

For this purpose, the utility model provides the following technical scheme: the shaft product detection device comprises a base, wherein a supporting rod is fixed on the base in the vertical direction, and a sleeve is fixed on the supporting rod; the top wall of the sleeve is provided with a through hole, the sleeve is internally provided with a stepped piston with an inverted T-shaped longitudinal section, and in an initial state, a boss at the upper part of the piston is arranged in the through hole, and the end face of the boss and the outer end face of the top wall of the sleeve are positioned in the same horizontal plane; a piston rod extending downwards is arranged on the bottom surface of the piston; the bottom end of the sleeve is provided with a bottom cover, a hole for the piston rod to pass through is arranged in the middle of the bottom cover, and an elastic part which can generate elasticity after being compressed is arranged between the bottom cover and the piston; the dial indicator is fixedly arranged on the rod body of the support rod at the lower part of the sleeve, the central axis of the measuring rod of the dial indicator coincides with the central axis of the piston rod, and the measuring head at the end part of the measuring rod is abutted to the end face of the free end of the piston rod.

Further, the elastic component is a compression spring, and the compression spring is sleeved on the piston rod.

Further, the bottom cover is in threaded connection with the sleeve, and a groove which is convenient for installing or detaching the bottom cover by using a spanner is formed in the lower end face of the bottom cover.

Further, the piston and the piston rod are integrally manufactured.

Further, the sleeve and the dial indicator are fixed on the support rod through the pipe clamp.

Further, the through hole is circular, and the stepped piston is cylindrical.

The utility model has the following advantages:

1. when the measuring device is used for measuring, an inspector only needs to press down a boss of the piston arranged in the through hole of the top wall of the sleeve by using the end part of the shaft part, and when the shaft shoulder collides with the outer end face of the top wall of the through hole, the piston stops moving, and the distance from the shaft shoulder to the shaft head can be obtained by measuring the travel of the piston rod by using the dial indicator. During measurement, the shaft shoulder is only required to be placed on the outer side of the top wall of the sleeve, the dial indicator is not required to be zeroed, the structure is simple, the operation is easy, the technical level requirements on inspection staff are low, and the inspection staff can be trained simply.

2. The utility model has low cost and strong practicability, and the used parts are convenient for purchase and manufacture, thereby being beneficial to popularization and application.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort to a person skilled in the art.

Fig. 1 is a front view of the present utility model.

Fig. 2 is a cross-sectional view of the telescoping mechanism of fig. 1.

Fig. 3 is a perspective view of the valve spindle of fig. 1.

In the figure: 1. a base; 2. a dial gauge; 2.1, measuring rod; 3. pipe clamp A; 4. a valve core shaft; 5. a sleeve; 5.1 through holes; 6. a piston; 7. a piston rod; 8. a compression spring; 9. a bottom cover; 9.1, grooves; 10. a pipe clamp B; 11. and (5) supporting the rod.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The utility model discloses a shaft product detection device, which is shown in figure 1 and comprises a base 1, wherein a supporting rod 11 is fixed on the base in the vertical direction, and a sleeve 5 is fixed on the supporting rod by two pipe clamps A3; as shown in fig. 2, a through hole 5.1 is arranged on the top wall of the sleeve, a piston 6 with a cylindrical ladder shape is arranged in the sleeve, the longitudinal section of the piston is in an inverted T shape, in the initial state, a boss on the upper part of the piston is arranged in the through hole, and the end surface of the boss and the outer end surface of the top wall of the sleeve are positioned in the same horizontal plane, so that the outer end surface of the top wall of the sleeve can be used as a reference surface; the piston can smoothly move up and down in the inner cavity of the sleeve, and the bottom surface of the piston is provided with a piston rod 7 which extends downwards and is integrally processed; an inner thread is arranged on the inner wall of the lower part of the sleeve, a bottom cover 9 is screwed on the inner thread, a round hole is arranged in the middle of the bottom cover, and the free end of the piston rod is arranged in the round hole; a compression spring 8 is sleeved on the piston rod between the bottom cover and the piston; the lower end surface of the bottom cover is also provided with a groove 9.1 which is convenient for installing or detaching the bottom cover by a spanner.

As shown in fig. 1, a pipe clamp B10 is fixedly arranged on a rod body of a supporting rod at the lower end of the sleeve, a dial gauge 2 is fixedly arranged in the pipe clamp B, the central axis of a measuring rod 2.1 of the dial gauge coincides with the central axis of the piston rod, the measuring rod is arranged in a gap of the pipe clamp B, and a measuring head at the end part of the measuring rod is abutted to the end face of the free end of the piston rod.

The method of using the present utility model will be described below by taking a spool shaft 4 having steps at both ends as an example.

When the dial indicator is used, the measuring head of the dial indicator is abutted with the lower end of the piston rod just before the first part is detected, and then the dial indicator is zeroed; after preparation work is finished, one end of the valve core shaft is abutted with a boss of a piston rod as shown in fig. 1, the valve core shaft is pressed downwards by hands, the piston rod extrudes a compression spring under the pushing of the valve core shaft and moves downwards, the piston rod moving downwards pushes a measuring rod of a dial indicator to move downwards, when a shoulder is abutted with the outer end face of the top wall of the sleeve, the moving distance of the piston rod and the measuring rod is the length 'F' (see fig. 3) of the step, after measurement is finished, the valve core shaft is drawn out from a through hole after the reading of the dial indicator is recorded, and the piston rod returns to the initial position under the action of the compression spring; the spool is then inverted and the length "E" of the other end step is measured in the same manner (see FIG. 3).

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (6)

1. A shaft product detection device is characterized in that: the device comprises a base, wherein a supporting rod is fixed on the base in the vertical direction, and a sleeve is fixed on the supporting rod; the top wall of the sleeve is provided with a through hole, the sleeve is internally provided with a stepped piston with an inverted T-shaped longitudinal section, and in an initial state, a boss at the upper part of the piston is arranged in the through hole, and the end face of the boss and the outer end face of the top wall of the sleeve are positioned in the same horizontal plane; a piston rod extending downwards is arranged on the bottom surface of the piston; the bottom end of the sleeve is provided with a bottom cover, a hole for the piston rod to pass through is arranged in the middle of the bottom cover, and an elastic part which can generate elasticity after being compressed is arranged between the bottom cover and the piston; the dial indicator is fixedly arranged on the rod body of the support rod at the lower part of the sleeve, the central axis of the measuring rod of the dial indicator coincides with the central axis of the piston rod, and the measuring head at the end part of the measuring rod is abutted to the end face of the free end of the piston rod.

2. The shaft product detection device according to claim 1, wherein: the elastic component is a compression spring, and the compression spring is sleeved on the piston rod.

3. The shaft product detection device according to claim 1, wherein: the bottom cover is in threaded connection with the sleeve, and a groove which is convenient for installing or detaching the bottom cover by using a spanner is formed in the lower end face of the bottom cover.

4. The shaft product detection device according to claim 1, wherein: the piston and the piston rod are integrally manufactured.

5. The shaft product detection device according to claim 1, wherein: the sleeve and the dial indicator are fixed on the supporting rod through the pipe clamp.

6. The shaft product detection device according to claim 1, wherein: the through hole is circular, and the stepped piston is cylindrical.