CN218946861U

CN218946861U - Centering structure and spring assembly device comprising same

Info

Publication number: CN218946861U
Application number: CN202223024595.3U
Authority: CN
Inventors: 王良涛; 杨斌; 李***; 石飞飞
Original assignee: United Automotive Electronic Systems Co Ltd
Current assignee: United Automotive Electronic Systems Co Ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-05-02
Anticipated expiration: 2032-11-14

Abstract

The utility model discloses a centering structure and a spring assembly device comprising the same, wherein the centering structure comprises a detection part and a moving part, one side of the moving part facing the detection part is provided with a blind hole, laser of a ranging part passes through a centering position, and the moving part is positioned at the centering position when the moving part moves to the position that the ranging part detects the blind hole; according to the utility model, by applying the laser ranging to centering detection, special centering equipment is not required, so that the labor cost and the time cost are effectively saved, the centering operation flow is simplified, the centering detection efficiency is effectively improved, the centering accuracy is effectively ensured, and the centering reliability is high; especially when the spring assembly device contains this centering structure, except the aforesaid technical effect, still further promoted degree of automation, improved the assembly efficiency of spring, help the productivity to promote.

Description

Centering structure and spring assembly device comprising same

Technical Field

The utility model relates to the field of assembly, in particular to a centering structure and a spring assembly device comprising the centering structure.

Background

With the rise of the national manufacturing and the further advance of the national manufacturing 2025 strategy, the labor cost of China is higher and higher, and under the background that the ratio of the labor cost to the product manufacturing cost is high, the manufacturing industry is bound to greatly promote automation and intelligence so as to relieve the pressure of high labor cost. The automotive industry, as a representative of large country manufacturing and a symbolization of a strong country of manufacturing, tends to move farther on the way of automated and intelligent manufacturing.

While automated and intelligent manufacturing advances, some long-standing difficulties are becoming apparent. For the electronics industry, many production scenarios require high positioning accuracy, high assembly accuracy to achieve high reliability of the product. For example, in automatic production, the problem of centering between two assembled parts is a great difficulty in the industry, and conventionally, a special centering inspection piece is generally required to be used for debugging and detecting the centering effect in order to solve the centering problem. For example, the assembly of the Hall noncontact electronic accelerator pedal spring requires that the springs are accurately assembled in the spring plug guide post, and the assembly process of the springs is as follows: firstly, a device clamping jaw clamps a spring, the spring is transported to an assembling position, then a spring plug cover is jacked up by a lifting servo device arranged at the bottom of the spring plug cover, the spring accurately falls to the bottom of a plug cover guide post, then the clamping jaw is opened, the lifting device continues to move upwards, and the spring plug cover are arranged at corresponding positions of a product base. In actual production, because the transporting mechanism of the spring plug cover and the clamping jaw continuously vibrates in the operation process, looseness and abrasion exist, the device needs to be detached periodically for maintenance, and when the device is installed back again, the centering accuracy is difficult to guarantee. Meanwhile, in the mechanical structure of the equipment, due to abrasion and vibration of a mechanism, poor centering condition can occur occasionally, when the poor centering condition reaches a certain degree, the product spring is not assembled in place, for the failure mode, the existing detection means are limited, and only special centering check pieces are used for checking the centering condition regularly.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a centering structure which can realize centering detection without using a centering inspection piece, and has the advantages of low cost, convenient operation and high reliability.

In order to solve the above technical problems, the centering structure provided by the present utility model includes:

a distance measuring part having a laser displacement sensor, the laser generated by the laser displacement sensor passing through the centering position;

the moving component is perpendicular to the propagation direction of the laser, a blind hole is formed in one side of the moving component, facing the distance measuring component, of the moving component, the depth direction of the blind hole is the same as the propagation direction of the laser, and the moving component comprises a clamping piece to drive the component to be centered to move along with the moving component;

the aperture of the blind hole is matched with the centering precision, and the depth of the blind hole is matched with the measuring precision of the ranging component;

the moving part is positioned at the centering position when the distance measuring part detects the blind hole.

In order to solve the technical problem, the utility model also provides a spring assembly device, which comprises:

a working platform mounted with a ranging part and a moving part;

the spring assembly mechanism comprises a spring plug cover, and the central axis of the spring plug cover is a centering position;

the laser of the distance measuring component intersects with the central axis of the spring plug cover and forms a plane, and the moving component moves along the direction perpendicular to the plane.

Preferably, the working platform is provided with a driving device, and the driving device drives the moving part to move.

Preferably, the driving device comprises a cylinder and a sliding rail, and the cylinder drives the moving part to move along the sliding rail.

Preferably, the spring assembly mechanism further comprises a lifting device, and the lifting device drives the spring plug cover to move along the central axis of the spring plug cover.

Preferably, the lifting device comprises a servo motor and a lifting column, and the servo motor controls the lifting column to move along the central axis of the spring plug cover;

the spring plug cover is arranged on the end face of the lifting column.

Preferably, the central axis of the spring plug cover is arranged in a vertical direction, the laser light propagates in a horizontal direction, and the moving part moves in the horizontal direction.

Preferably, the central axis of the spring plug cover, the laser and the moving direction of the moving component are perpendicular to each other.

According to the utility model, by applying the laser ranging to centering detection, special centering equipment is not required, so that the labor cost and the time cost are effectively saved, the centering operation flow is simplified, the centering detection efficiency is effectively improved, the centering accuracy is effectively ensured, and the centering reliability is high; especially when the spring assembly device contains this centering structure, except the aforesaid technical effect, still further promoted degree of automation, improved the assembly efficiency of spring, help the productivity to promote.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the following brief description of the drawings is given for the purpose of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without the need for inventive work for a person skilled in the art.

FIG. 1 is a schematic view of an embodiment of a centering structure of the present utility model, wherein the direction of movement of the moving member is shown;

FIG. 2 is a schematic view of an embodiment of a spring mounting device of the present utility model;

in the figure, 1-ranging means; 11-laser; 2-moving parts; 21-blind holes; 22-clamping piece; 23-direction of movement of the moving member; 3-a part to be centered; 4-a working platform; 41-driving means; 411-cylinder; 412-a slide rail; 5-a spring assembly mechanism; 51-spring plug cap; 52-lifting device; 521-servo motor; 522-lifting column; 6-a centering position; 7-springs.

Detailed Description

The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. 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.

Example 1

Referring to fig. 1, there is shown a centering structure of the present utility model comprising:

a distance measuring part 1 having a laser displacement sensor (not shown) that generates laser light 11 that passes through the centering position 6;

a moving component 2, the moving direction of which is perpendicular to the propagation direction of the laser 11, a blind hole 21 is formed on one side of the moving component 2 facing the distance measuring component 1, the depth direction of the blind hole 21 is the same as the propagation direction of the laser 11, and the moving component 2 comprises a clamping piece 22 to drive the component 3 to be centered to move along with the moving component 2;

the aperture of the blind hole 21 is matched with the centering precision, and the depth of the blind hole 21 is matched with the measuring precision of the distance measuring component 1;

when the moving member 2 moves to the position where the blind hole 21 is detected by the distance measuring member 1, the moving member 2 is located at the centering position 6.

In the embodiment of the present utility model, the clamping piece 22 of the moving part 2 clamps one of the parts to be assembled to move a set distance to the centering position 6 for assembly operation with the other part to be assembled (the other part is directly installed at the centering position 6), and whether the set distance of the moving part 2 can reach the centering position 6 is judged by ranging through the ranging part 1, wherein the principle of the judgment is as follows: firstly, moving the moving part 2 to a centering position 6 (ideal assembly position), irradiating laser 11 of the ranging part 1 to the surface of the moving part 2, and forming a blind hole 21 with a certain depth at the irradiation position of the laser 11, namely, if the moving part 2 moves to the centering position 6, the distance value measured by the ranging part 1 is different from the distance value measured by the non-centering position 6 by the depth value of the blind hole 21, so as to be used as a basis for judging whether the moving part 2 moves to the centering position 6; it will be appreciated that the depth of the blind hole 21 is at least greater than the accuracy range that the distance measuring device 1 can detect, otherwise the distance difference cannot be detected, and the maximum diameter of the blind hole 21 is required to be less than the accuracy of the alignment, otherwise the accuracy of the alignment still cannot achieve the required accuracy.

It should be noted that, the centering position 6 in the embodiment of the present utility model means that, before assembly, the two parts are in an ideal assembly position, and the two parts or a single part in the ideal assembly position are moved along the assembly direction to complete an ideal assembly without errors, and a straight line where centers of the two parts at the ideal position are located together coincides with the assembly direction, and the straight line is the centering position 6.

It should be noted that, the clamping member 22 in this embodiment does not merely refer to "clamping" the member to be centered, but may also refer to clamping, etc., as long as the clamping member 22 and the member to be centered form a relatively stable positional relationship and the clamping member 22 can drive the member to be centered 3 to move together therewith.

Example two

Referring to fig. 2, there is shown a spring mounting apparatus with a centering structure mounted thereto, comprising:

a work platform 4 to which the distance measuring part 1 and the moving part 2 are mounted;

a spring assembly mechanism 5 including a spring plug cover 51, wherein the central axis of the spring plug cover 51 is a centering position 6;

the laser 11 of the distance measuring part 1 intersects with the central axis of the spring stopper cover 51 and forms a plane, and the moving part 2 moves in a direction perpendicular to the plane.

In the embodiment of the utility model, the ranging component 1 of the centering structure is arranged on the working platform 4, the working platform 4 is a base, and the position of the working platform 4 is fixed, so that the position of the ranging component 1 is relatively fixed, the inaccurate ranging possibly caused by the position factor of the ranging component 1 is effectively avoided, more importantly, the spring assembling mechanism 5 is relatively fixed relative to the working platform 4, the relative position relation between the ranging component 1 and the spring assembling mechanism 5 is effectively ensured, the spring plug cover 51 is directly arranged at the centering position 6, the clamping piece 22 of the moving component 2 clamps the spring 7 to be assembled at the centering position 6, and whether the moving component 2 moves to the centering position 6 can be judged by ranging through the ranging component 1, thus the labor cost and the time cost are effectively saved, the centering operation flow is simplified, the centering detection efficiency is effectively improved, the centering precision is effectively ensured, and the centering reliability is high.

In one embodiment, the working platform 4 is provided with a driving device 41, and the driving device 41 drives the moving part 2 to move.

In one embodiment, the driving device 41 includes a cylinder 411 and a slide rail 412, and the cylinder 411 drives the moving member 2 to move along the slide rail 412.

In a specific embodiment, the spring assembling mechanism 5 further includes a lifting device 52, and the lifting device 52 drives the spring plug cover 51 to move along the central axis of the spring plug cover 51.

In one embodiment, the lifting device 52 includes a servo motor 521 and a lifting column 522, wherein the servo motor 521 controls the lifting column 522 to move along the central axis of the spring plug cover 51;

the spring plug 51 is mounted to an end face of the lifting column 522.

In a specific embodiment, the central axis of the spring plug cover 51 is arranged in a vertical direction, the laser light 11 propagates in a horizontal direction, and the moving member 2 moves in the horizontal direction.

In one embodiment, the central axis of the spring plug cover 51, the laser 11, and the moving direction of the moving member 2 are perpendicular to each other.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the utility model.

Claims

1. A centering structure, comprising:

2. A spring assembly apparatus comprising the centering structure of claim 1, comprising:

a working platform mounted with a ranging part and a moving part;

3. The spring assembly apparatus of claim 2, wherein the work platform is mounted with a driving means that drives the moving member.

4. A spring mounting apparatus according to claim 3, wherein said driving means comprises a cylinder and a slide rail, said cylinder driving said moving member along said slide rail.

5. The spring assembly apparatus of claim 2, wherein the spring assembly mechanism further comprises a lifting device that moves the spring plug cover along a central axis of the spring plug cover.

6. The spring assembly apparatus of claim 5 wherein the lifting means comprises a servo motor and a lifting column, the servo motor controlling movement of the lifting column along a central axis of the spring plug;

the spring plug cover is arranged on the end face of the lifting column.

7. The spring assembly apparatus of claim 2, wherein a central axis of the spring plug is disposed in a vertical direction, the laser light propagates in a horizontal direction, and the moving member moves in the horizontal direction.

8. The spring assembling apparatus according to claim 2, wherein a central axis of the spring plug, the laser, and a moving direction of the moving member are perpendicular to each other.