CN213335932U

CN213335932U - Vertical checking fixture for coaxiality of inner hole and opposite vertex hole of gear shaft

Info

Publication number: CN213335932U
Application number: CN202022635209.9U
Authority: CN
Inventors: 胡冬来
Original assignee: Wuxi Stoze Measuring Instrument Co ltd
Current assignee: Wuxi Stoze Measuring Instrument Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-06-01
Anticipated expiration: 2030-11-13

Abstract

The utility model relates to the technical field of workpiece measurement, in particular to a vertical checking fixture for the coaxiality of an inner hole opposite to a tip hole of a gear shaft, which comprises a workpiece, a supporting floor and a vertical rod, wherein the upper end of the workpiece is fixedly connected with a guide shaft, the outer side of the upper end of the guide shaft is fixedly connected with a guide sleeve, the left end of the guide sleeve is fixedly connected with a first connecting block, the upper end of the guide shaft is fixedly connected with a guide rod, the guide rod is fixedly connected with a guide frame, the middle of the guide frame is fixedly connected with a triangular rotating wheel, the upper end of the triangular rotating wheel is fixedly connected with a motor, and the upper end of the motor is fixedly connected with a motor fixing block. Has good use value.

Description

Vertical checking fixture for coaxiality of inner hole and opposite vertex hole of gear shaft

Technical Field

The utility model relates to a work piece measurement technical field specifically is vertical utensil of examining of gear shaft hole to apical pore axiality.

Background

The concentricity measuring instrument (coaxiality measuring instrument) is suitable for measuring parts with coaxiality requirements, such as a step shaft, a shaft sleeve, a bush and the like, is used for finding the concentricity of two shafts of various rotating equipment, such as a centrifugal pump, a compressor, and the like (also called pair wheel alignment), has the characteristics of reasonable structure, high precision, small error, wide application range, convenient use and maintenance and the like, is an ideal special measuring tool, has two axial and radial double-sided dial indicators, is convenient to read, is provided with high-performance magnetic steel on a base, can be firmly adsorbed on a coupling, is used for detecting the concentricity of cylindrical pin type, gear type, fixed type, elastic type and other couplings, not only improves the measuring precision and reduces the measuring error, but also can greatly improve the working efficiency, reduces the vibration of a machine, prolongs the service life, and has increasingly wide application to a vertical checking fixture for the coaxiality of a tip hole in an inner hole of a gear, therefore, the demand for the vertical checking fixture for coaxiality of the inner hole of the gear shaft to the tip hole is increasing.

Most of tools for detecting the coaxiality of the inner hole of the gear shaft to the tip hole in the market need manual operation for moving the gear shaft up and down in the using process, and the condition that the measured data is inaccurate can occur due to the fact that the gear pump cannot move up and down at the same speed in the using process of the device, so that the vertical checking tool for detecting the coaxiality of the inner hole of the gear shaft to the tip hole is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vertical utensil of examining of gear shaft hole to apical pore axiality to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a vertical checking fixture for coaxiality of inner holes of gear shafts to a tip hole comprises a workpiece, a supporting floor and a vertical rod, wherein a guide shaft is fixedly connected to the upper end of the workpiece, a guide sleeve is fixedly connected to the outer side of the upper end of the guide shaft, a first connecting block is fixedly connected to the left end of the guide sleeve, a guide rod is fixedly connected to the upper end of the guide shaft, a guide frame is fixedly connected to the guide rod, a triangular rotating wheel is fixedly connected to the middle of the guide frame, a motor is fixedly connected to the upper end of the triangular rotating wheel, a motor fixing block is fixedly connected to the upper end of the motor, the left end of the motor fixing block is fixedly connected to the vertical rod, a rib plate is fixedly connected to the left end face of the vertical rod, the lower end face of the vertical rod is fixedly connected to the supporting floor, a second connecting, the L-shaped measuring rod is characterized in that an expansion spring is fixedly connected to the left side of the lower end of the L-shaped measuring rod, a measuring meter is arranged on the right side of the lower end of the L-shaped measuring rod, a connecting support is fixedly connected to the left end face of the expansion spring, and a limiting block is fixedly connected to the middle of the upper end of the connecting support.

Preferably, a limiting groove is formed in the middle of the lower end of the L-shaped measuring rod, and the L-shaped measuring rod is fixedly connected with the limiting block through the limiting groove.

Preferably, the right side of the upper end of the L-shaped measuring rod is fixedly connected with the right end face of the inner side of the workpiece, and the central point of the L-shaped measuring rod and the central point of the workpiece are arranged on the same vertical plane.

Preferably, the middle position of the lower end face of the guide frame is fixedly connected with a guide rod, the upper end of the guide rod at the upper end of the guide frame is fixedly connected to the left side of the upper end face of the vertical rod, and the lower end face of the guide rod at the lower end of the guide frame is fixedly connected with a guide shaft.

Preferably, the central point of the motor spindle, the central point of the guide shaft and the central point of the workpiece are arranged on the same vertical plane.

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

1. in the utility model, the motor, the guide rod, the guide frame and the guide shaft are arranged, so that the gear shaft can be ensured to move up and down at a constant speed on the same vertical plane in the process of measuring the gear shaft, the accuracy of measured data can be effectively improved by controlling the gear shaft, and the gear shaft measuring device has good use value;

2. the utility model discloses in, through the expanding spring, L type measuring stick, guide way and the stopper that set up, can feed back to the gauge to the accurate condition of gear shaft inside through L type measuring stick, L type measuring stick lower extreme right side expanding spring's setting can effectually let L type measuring stick reduce inertial influence at the in-process of measuring the gear shaft medial surface in addition, improvement measured data's that can be fine accuracy, is worth using widely.

Drawings

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

FIG. 2 is a schematic view of the structure at A in FIG. 1 according to the present invention;

fig. 3 is a schematic structural diagram of the point B in fig. 1 according to the present invention.

In the figure: 1-workpiece, 2-L-shaped measuring rod, 3-connecting rotating wheel, 4-supporting floor, 5-measuring meter, 6-guide sleeve, 7-first connecting block, 8-vertical rod, 9-rib plate, 10-second connecting block, 11-guide shaft, 12-guide frame, 13-triangular rotating wheel, 14-motor, 15-motor fixing block, 16-guide rod, 17-limiting block, 18-limiting groove, 19-telescopic spring and 20-connecting support.

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.

Referring to fig. 1-3, the present invention provides a technical solution:

a vertical checking fixture for coaxiality of inner holes of gear shafts to a tip hole comprises a workpiece 1, a supporting floor 4 and a vertical rod 8, wherein the upper end of the workpiece 1 is fixedly connected with a guide shaft 11, the outer side of the upper end of the guide shaft 11 is fixedly connected with a guide sleeve 6, the left end of the guide sleeve 6 is fixedly connected with a first connecting block 7, the upper end of the guide shaft 11 is fixedly connected with a guide rod 16, the guide rod 16 is fixedly connected with a guide frame 12, the middle of the guide frame 12 is fixedly connected with a triangular rotating wheel 13, the upper end of the triangular rotating wheel 13 is fixedly connected with a motor 14, the upper end of the motor 14 is fixedly connected with a motor fixing block 15, the left end of the motor fixing block 15 is fixedly connected with the vertical rod 8, the left end face of the vertical rod 8 is fixedly connected with a rib plate 9, the lower end face of the vertical rod 8 is fixedly connected with the supporting floor, 2 lower extreme left sides fixedly connected with expanding spring 19 of L type measuring stick, 2 lower extreme right sides of L type measuring stick are equipped with measuring gauge 5, and expanding spring 19 left end face fixedly connected with linking bridge 20, fixedly connected with stopper 17 in the middle of the linking bridge 20 upper end.

A limiting groove 18 is formed in the middle of the lower end of the L-shaped measuring rod 2, and the L-shaped measuring rod 2 and the limiting block 17 are fixedly connected through the limiting groove 18, so that the L-shaped measuring rod 2 can be well fixed; the right side of the upper end of the L-shaped measuring rod 2 is fixedly connected with the right end face of the inner side of the workpiece 1, and the central point of the L-shaped measuring rod 2 and the central point of the workpiece 1 are arranged on the same vertical plane, so that the measuring accuracy is effectively improved; the middle position of the upper end face of the guide frame 12 is fixedly connected with a guide rod 16 in the middle of the lower end face of the guide frame 12, the upper end of the guide rod 16 at the upper end of the guide frame 12 is fixedly connected to the left side of the upper end face of the upright rod 8, and the lower end face of the guide rod 16 at the lower end of the guide frame 12 is fixedly connected with a guide shaft 11, so that the gear shaft can keep constant speed in the process of moving up and down; the central point of the main shaft of the motor 14, the central point of the guide shaft 11 and the central point of the workpiece 1 are arranged on the same vertical plane, so that the accuracy of the device in the measuring process is improved.

The working process is as follows: when the coaxiality of the center hole of the gear shaft inner hole of the workpiece 1 needs to be detected, the gear shaft is stably connected to the lower end of the guide shaft 11, the L-shaped measuring rod 2 is in close contact with the inner side of the gear shaft, the whole stability of the device is ensured after the placement is finished, the measuring meter 5 is reset, the motor 14 is electrified after the setting is finished, the motor 14 can drive the triangular rotating wheel 13 to rotate at a constant speed, the guide frame 12 can drive the guide shaft 11 to move up and down through the guide rod 16 under the driving of the triangular rotating wheel 13, therefore, the motion condition of the L-shaped measuring rod 2 on the inner side of the gear shaft can be passed, the lower end of the L-shaped measuring rod 2 can feed back the measuring meter 5 in real time, in the swinging process of the L-shaped measuring rod 2, the smoothness of the motion of the L-shaped measuring rod 12 can be ensured by the limiting blocks 17 and the limiting grooves 18, and the telescopic spring 19 can effectively prevent the L-shaped measuring rod 2 The situation of the real data on the inner side occurs, and is very quick.

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

1. Vertical utensil of examining of gear shaft hole to apex hole axiality includes work piece (1), support floor (4) and pole setting (8), its characterized in that: the guide shaft (11) is fixedly connected to the upper end of the workpiece (1), the guide sleeve (6) is fixedly connected to the outer side of the upper end of the guide shaft (11), the first connecting block (7) is fixedly connected to the left end of the guide sleeve (6), the guide rod (16) is fixedly connected to the upper end of the guide shaft (11), the guide frame (12) is fixedly connected to the guide rod (16), the triangular rotating wheel (13) is fixedly connected to the middle of the guide frame (12), the motor (14) is fixedly connected to the upper end of the triangular rotating wheel (13), the motor fixing block (15) is fixedly connected to the upper end of the motor (14), the vertical rod (8) is fixedly connected to the left end of the motor fixing block (15), the rib plate (9) is fixedly connected to the left end face of the vertical rod (8), the supporting floor (4) is fixedly connected to the lower end face of the vertical rod (8), be equipped with in the middle of second connecting block (10) and connect axis of rotation (3), connect axis of rotation (3) outside fixedly connected with L type measuring stick (2), L type measuring stick (2) lower extreme left side fixedly connected with expanding spring (19), L type measuring stick (2) lower extreme right side is equipped with meter (5), expanding spring (19) left end face fixedly connected with linking bridge (20), fixedly connected with stopper (17) in the middle of linking bridge (20) upper end.

2. The vertical checking fixture for coaxiality of the inner hole of the gear shaft to the tip hole of the gear shaft according to claim 1, is characterized in that: and a limiting groove (18) is formed in the middle of the lower end of the L-shaped measuring rod (2), and the L-shaped measuring rod (2) is fixedly connected with the limiting block (17) through the limiting groove (18).

3. The vertical checking fixture for coaxiality of the inner hole of the gear shaft to the tip hole of the gear shaft according to claim 1, is characterized in that: the right side of the upper end of the L-shaped measuring rod (2) is fixedly connected with the right end face of the inner side of the workpiece (1), and the central point of the L-shaped measuring rod (2) and the central point of the workpiece (1) are arranged on the same vertical plane.

4. The vertical checking fixture for coaxiality of the inner hole of the gear shaft to the tip hole of the gear shaft according to claim 1, is characterized in that: the equal fixedly connected with guide bar (16) in position in the middle of the up end intermediate position guide frame (12) lower terminal surface of guide frame (12), guide bar (16) upper end fixed connection in pole setting (8) up end left side of guide frame (12) upper end, terminal surface fixedly connected with guiding axle (11) under guide bar (16) of guide frame (12) lower extreme.

5. The vertical checking fixture for coaxiality of the inner hole of the gear shaft to the tip hole of the gear shaft according to claim 1, is characterized in that: the central point of the main shaft of the motor (14), the central point of the guide shaft (11) and the central point of the workpiece (1) are arranged on the same vertical plane.