CN219531914U - Differential mechanism sphere diameter detection device - Google Patents

Abstract

A differential sphere diameter detection device belongs to the technical field of measurement and inspection devices. The upper end of the bottom plate is provided with a measuring seat and a connecting seat, and a piece to be measured is arranged on the measuring seat; the middle part of the connecting seat slides and is rotatably inserted with a handle, the connecting seat and the handle are coaxially arranged, and the height between the centers of the connecting seat and the handle and the upper surface of the bottom plate is the same as the height of the sphere center of the piece to be tested; the handle is adjacent to one end of the measuring seat and is provided with a cavity, two measuring rods are arranged in the cavity, the middle parts of the two measuring rods are rotationally connected with the handle, one end of each measuring rod adjacent to the measuring seat extends out of the cavity, the outer side of one end of each measuring rod is provided with a measuring head, the other end of one measuring rod is provided with a reference column, and the other end of the other measuring rod is inserted with a dial indicator; the dial indicator is correspondingly matched with the reference column. The utility model has simple, compact and reasonable structure, solves the problem that the universal measuring tool can not detect the inner diameter of the spherical inner hole, has simple and quick measurement, and can improve the working efficiency while ensuring the measurement precision.

Description

Differential mechanism sphere diameter detection device

Technical Field

The utility model relates to a differential sphere diameter detection device, and belongs to the technical field of measurement and inspection devices.

Background

At present, general measuring tools such as calipers and the like cannot enter the inner part of the differential mechanism shell due to the limitation of a design structure, and the inner hole of the differential mechanism shell is a sphere diameter, so that even if a special caliper is manufactured, the sphere center cannot be accurately found, measurement data are inaccurate, and the differential mechanism shell is not suitable for measurement with higher precision.

Although the three-coordinate measuring method can accurately measure the sphere diameter of the inner sphere hole, the three-coordinate measuring method is limited by the size of the measuring head, and a special measuring head is required to be customized to enter the sphere hole for dotting, so that the three-coordinate measuring method is high in cost, long in time consumption and not suitable for the inspection process of workpiece mass production.

Disclosure of Invention

In order to solve the problems in the background technology, the utility model provides a differential sphere diameter detection device.

The utility model adopts the following technical scheme: a differential sphere diameter detection device comprises a bottom plate, a measurement seat, a connection seat, a handle, a measuring rod, a measuring head, a reference column and a dial indicator; the upper end of the bottom plate is provided with a measuring seat and a connecting seat, and a piece to be measured is arranged on the measuring seat; the middle part of the connecting seat slides and is rotatably inserted with a handle which is horizontally arranged, the connecting seat and the handle are coaxially arranged, and the height between the centers of the connecting seat and the handle and the upper surface of the bottom plate is the same as the height of the sphere center of the piece to be tested; the handle is provided with a cavity near one end of the measuring seat, two measuring rods which are symmetrically arranged are arranged in the cavity, the middle parts of the two measuring rods are rotationally connected with the handle, one end of each measuring rod near the measuring seat extends out of the cavity, a measuring head is arranged outside one end of each measuring rod, a reference column is arranged at the other end of one measuring rod, and a dial indicator is inserted at the other end of the other measuring rod; the dial indicator is correspondingly matched with the reference column.

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

the utility model has simple, compact and reasonable structure, solves the problem that the universal measuring tool can not detect the inner diameter of the spherical inner hole, has simple and quick measurement, and can improve the working efficiency while ensuring the measurement precision.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic diagram of the connection relationship between the connection base and the handle;

fig. 4 is a right side view of fig. 1.

Detailed Description

The technical solutions 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 utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are all within the protection scope of the present utility model.

The utility model provides a differential mechanism sphere diameter detection device, includes bottom plate 2, measuring seat 4, connecting seat 7, handle 8, measuring rod 11, gauge head 12, reference column 15 and percentage table 18; the upper end of the bottom plate 2 is provided with a measuring seat 4 and a connecting seat 7, the measuring seat 4 is connected with the bottom plate 2 in a positioning way through a guide pillar 6, and a piece 5 to be measured is arranged on the measuring seat 4; the middle part of the connecting seat 7 slides and is rotatably inserted with a handle 8 which is horizontally arranged, the connecting seat 7 and the handle 8 are coaxially arranged, and the height between the centers of the connecting seat 7 and the handle 8 and the upper surface of the bottom plate 2 is the same as the sphere center height of the piece 5 to be detected; the handle 8 is provided with a cavity near one end of the measuring seat 4, two measuring rods 11 which are symmetrically arranged are arranged in the cavity, the middle parts of the two measuring rods 11 are rotationally connected with the handle 8 through corresponding pin shafts, one end of each measuring rod 11 near the measuring seat 4 extends out of the cavity, a measuring head 12 is arranged on the outer side of one end of each measuring rod 11, a reference column 15 is arranged at the other end of one measuring rod 11, and a dial indicator 18 is inserted at the other end of the other measuring rod 11; the dial indicators 18 are correspondingly matched with the reference columns 15. During measurement, the lever principle is utilized, the pin shaft is used as a rotation point of the measuring rod, the measuring head 12 touches the inner wall of the ball hole, and the difference value between the measuring head and the standard part is displayed on the dial indicator 18 to judge whether the measuring head is qualified or not.

A pressure spring 13 is arranged between the inner wall of each measuring rod 11 and the handle 8, and the pressure springs 13 are used for automatic return of the measuring rods 11, so that the measuring heads 12 are guaranteed to be in fit contact with the spherical inner wall.

The upper end of bottom plate 2 is equipped with slide rail assembly 3, be equipped with connecting seat 7 on the slider of slide rail assembly 3, the center of slide rail assembly 3 and measurement seat 4 is located same horizontal line for handle 8 and connecting seat 7 become the slider that a whole mobile body followed slide rail assembly 3 and remove, avoid handle 8 to remove between connecting seat 7, reduced handle 8's travel path, reduced the processing degree of difficulty, reduced the processing cost.

The upper end of bottom plate 2 is equipped with dog 9, be equipped with stop pin 10 on the slider of slide rail assembly 3, stop pin 10 and dog 9 cooperation setting avoid slide rail assembly 3 to surpass the displacement scope.

The upper end of bottom plate 2 is equipped with fixed pulley 16, be equipped with auxiliary block 17 on the slider of slide rail assembly 3, auxiliary block 17 slides and sets up in the outer wall recess of fixed pulley 16, avoids the slider motion in-process of slide rail assembly 3 to produce the skew of direction of height, guarantees measuring accuracy.

A shifting block 20 is arranged between the two measuring rods 11, the outer wall of the shifting block 20 is in matched contact with the two measuring rods 11, the shifting block 20 is coaxially and fixedly sleeved on the outer side of a rotating shaft 19, the rotating shaft 19 is arranged in a cavity, and two ends of the rotating shaft 19 are both in rotary connection with the handle 8.

The four corners of the lower end of the bottom plate 2 are respectively provided with a foot 1.

When the utility model is used, the handle 8 is pulled rightwards, the standard part is placed on the measuring seat 4, and then the handle 8 is pushed leftwards, so that the measuring head 12 is tightly attached to the inner wall of the standard part, and the dial indicator 18 is zeroed. The handle 8 is pulled to the right again and the standard is removed.

And then the piece to be measured is placed on the measuring seat 4, the handle 8 is pushed leftwards again, the measuring head 12 is tightly attached to the inner wall of the piece to be measured, the reading of the dial indicator 18 is the difference value between the standard piece spherical diameter and the spherical diameter of the standard piece, and the standard piece spherical diameter is compared with the required size of the piece to judge whether the piece is qualified or not after being subjected to addition and subtraction.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in 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 utility model 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (7)

1. The utility model provides a differential mechanism sphere diameter detection device which characterized in that: comprises a bottom plate (2), a measuring seat (4), a connecting seat (7), a handle (8), a measuring rod (11), a measuring head (12), a reference column (15) and a dial indicator (18); the upper end of the bottom plate (2) is provided with a measuring seat (4) and a connecting seat (7), and a piece (5) to be measured is arranged on the measuring seat (4); the middle part of the connecting seat (7) slides and is rotatably inserted with a handle (8) which is horizontally arranged, the connecting seat (7) and the handle (8) are coaxially arranged, and the height between the centers of the connecting seat (7) and the handle (8) and the upper surface of the bottom plate (2) is the same as the height of the spherical center of the piece (5) to be detected; the measuring device is characterized in that a cavity is formed in one end, close to the measuring seat (4), of the handle (8), two measuring rods (11) which are symmetrically arranged are arranged in the cavity, the middle parts of the two measuring rods (11) are rotationally connected with the handle (8), one end, close to the measuring seat (4), of each measuring rod (11) extends out of the cavity, a measuring head (12) is arranged on the outer side of one end of each measuring rod (11), a reference column (15) is arranged at the other end of one measuring rod (11), and a dial indicator (18) is inserted into the other end of the other measuring rod (11); the dial indicator (18) is correspondingly matched with the reference column (15).

2. The differential sphere diameter detection device according to claim 1, wherein: a pressure spring (13) is arranged between the inner wall of each measuring rod (11) and the handle (8).

3. A differential sphere diameter detection apparatus according to claim 1 or 2, characterized in that: the upper end of bottom plate (2) is equipped with slide rail assembly (3), be equipped with connecting seat (7) on the slider of slide rail assembly (3), the center of slide rail assembly (3) and measurement seat (4) is located same horizontal line.

4. A differential sphere diameter detection apparatus according to claim 3, wherein: the upper end of the bottom plate (2) is provided with a stop block (9), a sliding block of the sliding rail assembly (3) is provided with a stop pin (10), and the stop pin (10) is matched with the stop block (9).

5. The differential sphere diameter detection device according to claim 4, wherein: the upper end of the bottom plate (2) is provided with a fixed pulley (16), a sliding block of the sliding rail assembly (3) is provided with an auxiliary block (17), and the auxiliary block (17) is arranged in an outer wall groove of the fixed pulley (16) in a sliding mode.

6. A differential sphere diameter detection apparatus according to claim 1 or 5, wherein: a shifting block (20) is arranged between the two measuring rods (11), the outer wall of the shifting block (20) is in matched contact with the two measuring rods (11), the shifting block (20) is coaxially and fixedly sleeved on the outer side of a rotating shaft (19), the rotating shaft (19) is arranged in a cavity, and two ends of the rotating shaft (19) are both in rotary connection with a handle (8).

7. The differential sphere diameter detection device according to claim 6, wherein: the four corners of the lower end of the bottom plate (2) are respectively provided with a footing (1).