CN213765608U

CN213765608U - Positioning and measuring mechanism for cylindrical part

Info

Publication number: CN213765608U
Application number: CN202022825327.6U
Authority: CN
Inventors: 吴玉娜
Original assignee: North China Institute of Aerospace Engineering
Current assignee: North China Institute of Aerospace Engineering
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-07-23
Anticipated expiration: 2030-11-30

Abstract

The utility model discloses a positioning and measuring mechanism for cylindrical parts, which comprises a bottom plate, wherein a right clamp plate, a middle clamp plate and a left clamp plate are arranged above the bottom plate, the middle clamp plate is positioned between the right clamp plate and the left clamp plate, the right clamp plate, the middle clamp plate and the left clamp plate are all in power connection with a driving device below the bottom plate, the driving device drives the right clamp plate, the middle clamp plate and the left clamp plate to gather together or disperse simultaneously, a rectangular clamping space is formed when the right clamp plate, the middle clamp plate and the left clamp plate gather together simultaneously, the right clamp plate and the left clamp plate move along the same straight line, and the middle clamp plate is perpendicular to the movement tracks of the right clamp plate and the left clamp plate; and a displacement sensor for monitoring the position of the clamp plate is arranged on one side of the right clamp plate or the left clamp plate. The utility model discloses simplify and trade the type, save time reduces intensity of labour, and the diameter size through measuring the part simultaneously prevents that wrong part from being used.

Description

Positioning and measuring mechanism for cylindrical part

Technical Field

The utility model relates to an anchor clamps field especially relates to a location measurement mechanism for cylindrical part.

Background

Automated assembly lines often fit cylindrical parts that are similar in shape but vary in size. The parts can adopt an automatic feeding system to supply materials, then the parts are positioned by adopting corresponding positioning fixtures, and the positions of the assembly mechanisms for grabbing the materials are ensured. However, for a multi-product collinear assembly line, the corresponding clamp needs to be replaced manually, which wastes time, increases the working strength of an operator, and also has the risk of replacing the clamp model by mistake.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a location measurement mechanism for cylindrical part solves many products collineations and needs frequently to change positioning fixture's problem.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model relates to a positioning and measuring mechanism for cylindrical parts, comprising a base plate, the top of bottom plate is provided with right clamp plate, middle clamp plate and left clamp plate, middle clamp plate is located between right clamp plate and left clamp plate, right clamp plate, middle clamp plate and left clamp plate are all connected with the drive arrangement power of below, drive arrangement drive right clamp plate, middle clamp plate and left clamp plate gather together simultaneously or disperse simultaneously, form rectangle clamping space when right clamp plate, middle clamp plate and left clamp plate gather together simultaneously, right clamp plate, left clamp plate are along the same linear motion, middle clamp plate is perpendicular with the motion trail of right clamp plate, left clamp plate;

and a displacement sensor for monitoring the position of the clamp plate is arranged on one side of the right clamp plate or the left clamp plate.

Furthermore, the driving device is a four-claw cylinder, and the right clamp plate, the middle clamp plate and the left clamp plate are respectively fixed on three gas claws of the four-claw cylinder through bolts.

Furthermore, the detection end of the displacement sensor is in contact with the outer side of the right clamp plate, and the position of the right clamp plate is monitored in real time.

Further, the middle clamp plate is T-shaped, the vertical part of the T-shape extends into the rectangular clamping space, and the horizontal part of the T-shape is connected with the pneumatic claw of the four-claw cylinder.

Compared with the prior art, the utility model discloses a beneficial technological effect:

the utility model can be compatible with cylindrical parts with different diameters, the positioning clamp does not need to be replaced when the cylindrical parts with different diameters are replaced, and the risk of replacing the wrong clamp model is avoided; the utility model discloses simplify and trade the type, save time reduces intensity of labour, and the diameter size through measuring the part simultaneously prevents that wrong part from being used.

Drawings

The present invention will be further explained with reference to the following description of the drawings.

FIG. 1 is a schematic structural view of a positioning and measuring mechanism for cylindrical parts according to the present invention;

fig. 2 is a schematic view of the clamping state of the positioning and measuring mechanism for cylindrical parts of the present invention.

Description of reference numerals: 1. a base plate; 2. a right clamp plate; 3. a middle clamp plate; 4. a left clamp plate; 5. a drive device; 6. a rectangular clamping space; 7. a displacement sensor; 8. a cylindrical part.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1, the embodiment discloses a positioning and measuring mechanism for a cylindrical part, which comprises a bottom plate 1, a right clamp plate 2, a middle clamp plate 3 and a left clamp plate 4 are arranged above the bottom plate 1, the middle clamp plate 3 is located between the right clamp plate 2 and the left clamp plate 4, the right clamp plate 2, the middle clamp plate 3 and the left clamp plate 4 are all in power connection with a driving device 5 below, the driving device 5 drives the right clamp plate 2, the middle clamp plate 3 and the left clamp plate 4 to be simultaneously gathered or dispersed, a rectangular clamping space 6 is formed when the right clamp plate 2, the middle clamp plate 3 and the left clamp plate 4 are simultaneously gathered, the right clamp plate 2 and the left clamp plate 4 move along the same straight line, and the movement track of the middle clamp plate 3 is perpendicular to that of the right clamp plate 2 and the left clamp plate 4. One side of the right clamp plate 2 or the left clamp plate 4 is provided with a displacement sensor 7 for monitoring the position of the clamp plates.

In this embodiment, the driving device 5 is configured as a four-jaw cylinder, the right clamp plate 2, the middle clamp plate 3 and the left clamp plate 4 are respectively fixed on three gas jaws of the four-jaw cylinder through bolts, and the four-jaw cylinder and the bottom plate 1 are both fixed on the table top of the machine tool through bolts. The detecting end of the displacement sensor 7 is contacted with the outer side of the right clamp plate 2, and the displacement sensor 7 can be connected with a controller through electric signals, such as a computer, to monitor the position of the right clamp plate 2 in real time. The middle clamp plate 3 is T-shaped, the vertical part of the T-shape extends into the rectangular clamping space 6, and the horizontal part of the T-shape is connected with the air claw of the four-claw air cylinder.

As shown in fig. 2, in the initial state, four jaws of the four-jaw cylinder are synchronously expanded, three jaws drive the right clamp plate 2, the middle clamp plate 3 and the left clamp plate 4 to move outwards in a dispersed manner, and at this time, the rectangular clamping space 6 in the middle of the three clamp plates is opened. The feeding mechanism pushes the cylindrical part 8 into the rectangular clamping space 6 until the cylindrical surface abuts against the front end surface of the vertical part of the middle clamp plate 3.

When the clamping and positioning states are realized, the clamping jaws of the four-jaw cylinder are synchronously retracted, and the right clamp plate 2, the middle clamp plate 3 and the left clamp plate 4 are driven to move inwards in a gathering manner. The middle clamp plate 3 pushes the cylindrical part 8 forwards, the right clamp plate 2 and the left clamp plate 4 gradually approach the cylindrical part 8 until the cylindrical part 8 is clamped simultaneously, the air claws of the four-claw air cylinder stop moving, the clamping and positioning of the cylindrical part 8 are completed, and the distances from the axis of the cylindrical part 8 to the three clamping surfaces are equal. It should be noted that, since the three clamping surfaces move inward or outward simultaneously, the axes of the cylindrical parts 8 with different diameters stay at the same position after positioning.

During final clamping, the displacement sensor 7 can calculate the diameter of the cylindrical part 8 by monitoring the position of the right clamp plate 2, so that the purpose of preventing the type of the part from being mistaken is achieved. After the diameter measurement of cylindrical part 8 finishes, four jack catchs of four-jaw cylinder are opened outward in step, and wherein three claw drives right anchor clamps board 2, well anchor clamps board 3, the outside dispersion motion of left anchor clamps board 4, and cylindrical part 8 stops in the position of location.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. A positioning and measuring mechanism for cylindrical parts is characterized in that: comprises a bottom plate (1), a right clamp plate (2), a middle clamp plate (3) and a left clamp plate (4) are arranged above the bottom plate (1), the middle clamp plate (3) is positioned between the right clamp plate (2) and the left clamp plate (4), the right clamp plate (2), the middle clamp plate (3) and the left clamp plate (4) are all in power connection with a driving device (5) below, the driving device (5) drives the right clamp plate (2), the middle clamp plate (3) and the left clamp plate (4) to gather or disperse simultaneously, the right clamp plate (2), the middle clamp plate (3) and the left clamp plate (4) form a rectangular clamping space (6) when being gathered together simultaneously, the right clamp plate (2) and the left clamp plate (4) move along the same straight line, the middle clamp plate (3) is vertical to the motion tracks of the right clamp plate (2) and the left clamp plate (4);

and a displacement sensor (7) for monitoring the position of the clamp plate is arranged on one side of the right clamp plate (2) or the left clamp plate (4).

2. The positioning and measuring mechanism for cylindrical parts according to claim 1, wherein: the driving device (5) is a four-claw cylinder, and the right clamp plate (2), the middle clamp plate (3) and the left clamp plate (4) are fixed on three gas claws of the four-claw cylinder respectively through bolts.

3. The positioning and measuring mechanism for cylindrical parts according to claim 2, wherein: the middle clamp plate (3) is T-shaped, the vertical part of the T-shape extends into the rectangular clamping space (6), and the horizontal part of the T-shape is connected with the pneumatic claw of the four-claw cylinder.

4. The positioning and measuring mechanism for cylindrical parts according to claim 1, wherein: and the detection end of the displacement sensor (7) is in contact with the outer side of the right clamp plate (2), and the position of the right clamp plate (2) is monitored in real time.