CN218694978U

CN218694978U - Variable amplitude surface dynamic focusing marking structure capable of being accurately adjusted

Info

Publication number: CN218694978U
Application number: CN202222970698.2U
Authority: CN
Inventors: 周双留; 时建伟; 崔振华
Original assignee: Sino Galvo Jiangsu Technology Co ltd
Current assignee: Sino Galvo Jiangsu Technology Co ltd
Priority date: 2022-11-08
Filing date: 2022-11-08
Publication date: 2023-03-24
Anticipated expiration: 2032-11-08

Abstract

The utility model provides a but mark structure is beaten in amplitude face dynamic focus of accurate adjustment, including support seat, elasticity locking mechanism, amplitude modulation seat, wherein: two linear guide rails are arranged on the vertical surface of the bracket seat; the back of the amplitude modulation seat is fixed with the linear guide rail, the bottom of the amplitude modulation seat is fixed on the bottom plate, and the linear guide rail can drive the support seat to slide in the horizontal direction relative to the amplitude modulation seat; the front side of the amplitude modulation seat is provided with a scale, a strip-shaped through hole is formed above the scale, a pointer pad is arranged in the strip-shaped through hole, a pointer pointing to the scale is arranged at the lower end of the pointer pad, and the pointer pad can slide in the strip-shaped hole along the horizontal direction; the front of the amplitude modulation seat is fixedly provided with a push wheel guide rail, a push wheel is arranged on the push wheel guide rail, the push wheel can slide on the push wheel guide rail, the push wheel is connected with a push wheel frame and a push wheel fixing frame, and the other end of the push wheel fixing frame penetrates through the strip-shaped hole and is fixed with the elastic locking mechanism. The utility model discloses an adjustment accuracy does not receive spare parts machining precision influences such as bottom plate, box.

Description

Variable amplitude surface dynamic focusing marking structure capable of being accurately adjusted

Technical Field

The utility model belongs to the technical field of dynamic focusing system, in particular to change width of cloth face dynamic focus of realizing expanding beam lens and focusing lens group between great distance adjustment and beat mark structure.

Background

In a conventional front-focusing (ordinary-focus post-scan) scanning system, a scanning galvanometer is placed in front of a focusing eyepiece (such as an ordinary focusing lens and a telecentric scanning lens), and a planar scanning field is obtained at a focal plane of the eyepiece. The system has lower cost and higher scanning speed, but the scanning field size and the light spot quality are seriously limited by the design of the lens.

Unlike front focusing scanning systems, in three-dimensional dynamic scanning systems, the scanning galvanometer is placed behind the focusing mirror. The focusing lens system consists of a movable beam expanding lens and a focusing lens group. The laser beam firstly enters the beam expanding lens, then enters the focusing lens group, and finally reaches the focal plane after being reflected by the scanning galvanometer. The distance between the beam expanding lens and the focusing lens group can be changed by utilizing an actuating device to move the beam expanding lens along the direction of the optical axis, so that the position of a focusing light spot can be changed in a two-dimensional or three-dimensional space, and the dynamic focusing is called as 'dynamic focusing pre-scan'. The focusing surface of the system is a curved surface, and the flat field can be realized by finely adjusting the distance between the beam expanding lens and the focusing lens group by matching with the rotation of the scanning galvanometer.

The dynamic focusing technique is the core part of a vibrating mirror type scanning laser marking machine control system, a dynamic focusing mirror moving in the Z direction is added in front of a common focusing mirror, the back-and-forth movement position of the dynamic focusing mirror is changed along with the difference of the scanning position, the focusing compensation is realized by finely adjusting the distance between the dynamic focusing mirror and a focusing mirror, the diameter of a light spot of a laser beam far away from an original point is the same as that of the light spot of the original point again, the focusing accuracy on a scanning plane is ensured, the laser beam is focused on the surface of a workpiece needing marking after being scanned by an X vibrating mirror and a Y vibrating mirror, and the dynamic focusing technique is the best solution which requires the light spot to be small and the marking area to be large so far. The technology that the X galvanometer, the Y galvanometer and the Z galvanometer form three-dimensional focusing solves the problems that after a laser beam passes through the focusing lens, a focusing light spot on a marking plane becomes large and the width of a marking line is different because a focal plane is a spherical surface and the surface of a workpiece is a plane. By changing the position of the dynamic focusing mirror, the focus of the dynamic focusing mirror is still on the surface of the workpiece, and the effects that all the light spots within the marking range are as large in diameter and small in diameter are achieved.

A set of system can realize marking the change that the scope is from 100 millimeters x100 millimeters to 2000 millimeters x2000 millimeters, and when the actual mark scope (breadth) need great change, for guaranteeing to mark the best effect, obtain littleer focus facula for preceding focus type system, the reduction laser loss of as far as possible shortens laser light path distance, improves the homogeneity of focus facula, can realize through the great distance that changes between expanded beam lens piece and the focus lens group.

In the prior art, CN108544085a discloses a three-dimensional dynamic focus marking machine, which adopts a thread adjusting structure exposed out of a machine case, the other end of the adjusting mechanism is fixedly connected with a dynamic focus Z-axis mechanism, and a rotating screw is adjusted to drive the horizontal movement of the Z-axis mechanism, thereby realizing the manual adjustment of the marking breadth.

CN210281073U discloses a convenient amplitude modulation structure in a dynamic focus marking system, which changes an adjusting screw into a screw rod, is connected with and driven by a stepping motor, and controls the rotation of the stepping motor through external software to adjust the marking breadth. The whole set of mechanism is arranged inside the box body.

There is also side adjustment style, but this kind of structure still adopts bottom plate double guide rail to remove, constitutes 90 degrees with the side adjustment machine, and the installation accuracy is difficult to guarantee, and when side adjustment mechanism locked, because side adjustment mechanism and bottom surface double guide rail structure are not in the coplanar for double guide rail structure produces the deformation, and is great to marking precision influence.

In summary, the prior art has the following problems:

1. the exposed adjusting mechanism influences the overall attractiveness of a product, the adjustment process needs to be carried out while observing when the equipment is started to work, and the safety problem exists. When different breadths are adjusted, especially when the breadths are adjusted to be larger from a small breadths, the adjusting rod needs to be continuously rotated, time and labor are wasted, and the efficiency is lower.

2. The adjusting mechanism is relatively complex and high in cost, needs to be additionally controlled by software, increases the cost and also needs to be powered on for adjustment. The breadth position can not be directly embodied, and the software identification is needed when the computer is started.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a but mark structure is beaten in amplitude face dynamic focus that becomes of accurate adjustment to solve the lower problem of efficiency that prior art exists.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a but mark structure is beaten in amplitude face dynamic focus of accurate adjustment, includes support seat, elasticity locking mechanism, amplitude modulation seat, wherein:

the support seat at least comprises a vertical surface and a bottom surface, and the vertical surface is provided with two linear guide rails which are parallel to each other in the horizontal direction;

one end of the elastic locking mechanism is fixed with the vertical surface of the bracket seat;

the back of the amplitude modulation seat is fixed with the linear guide rail, the bottom of the amplitude modulation seat is fixed on the bottom plate, and the linear guide rail can drive the support seat to slide in the horizontal direction relative to the amplitude modulation seat; the front side of the amplitude modulation seat is provided with a scale, a strip-shaped through hole is formed above the scale, a pointer pad is arranged in the strip-shaped through hole, a pointer pointing to the scale is arranged at the lower end of the pointer pad, and the pointer pad can slide in the strip-shaped hole along the horizontal direction; the front of the amplitude modulation seat is fixedly provided with a push wheel guide rail, a push wheel is arranged on the push wheel guide rail and can slide on the push wheel guide rail, the push wheel is connected with a push wheel frame and a push wheel fixing frame, and the other end of the push wheel fixing frame penetrates through the strip-shaped hole and is fixed with the elastic locking mechanism.

And a locking button is arranged on the pointer pad.

The elastic locking mechanism is positioned between the two linear guide rails.

The push wheel fixing frame, the elastic locking mechanism and the bracket base are fixedly connected through two screws.

The front of the amplitude modulation seat is provided with a strip-shaped groove, and the push wheel guide rail is fixed in the strip-shaped groove.

And the bottom surface of the amplitude modulation seat is provided with a plurality of screw holes for fixing the amplitude modulation seat on the bottom plate through bolts.

And a positioning boss is arranged at the bottom of the amplitude modulation seat and is used for being matched with the positioning groove on the bottom plate.

Has the beneficial effects that: the utility model discloses a but mark structure is beaten in face dynamic focus of changing of accurate adjustment is independent overall structure, can regard as the subassembly replacement alone, makes things convenient for batch production, the debugging. The device can be installed and applied to dynamic focusing structures with various specifications. The utility model discloses an adjustment accuracy does not receive spare parts machining precision influences such as bottom plate, box. The integrity of the device is preserved with no change to the overall appearance. The operation is simple, convenient and quick. The breadth switching can be completed without powering on and starting up, and the method is safe and reliable. The utility model discloses in, the perpendicular bottom surface of two linear guide sliding plane is vertical arranges, makes structural rigidity better, and is more stable, compact, and the volume is littleer. The sliding planes of the vertically arranged double linear guide rails are parallel to the locking plane of the elastic locking mechanism, so that the locking is firmer, the deformation of the whole structure is smaller, and the precision is higher. Through the unequal diameter design of the push wheels, the acting force of the large diameter is applied to the movement of the small diameter and the guide rail in proportion, and the accurate movement positioning can be realized by lightly pressing with hands.

Drawings

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

fig. 2 is a schematic front structural view of the present invention;

fig. 3 is a schematic diagram of the back structure of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 to 3, the utility model discloses a but mark structure is beaten in amplitude face dynamic focus of accurate adjustment, including support seat 1, elasticity locking mechanism 2, amplitude modulation seat 4, wherein:

the support base 1 at least comprises a vertical surface and a bottom surface, and the vertical surface is provided with two linear guide rails 3 which are parallel to each other in the horizontal direction.

One end of the elastic locking mechanism 2 is fixed with the vertical surface of the bracket seat 1; the elastic locking mechanism 2 is located between two linear guide rails 3.

The back of the amplitude-modulated base 4 is fixed with the linear guide rail 3, the bottom of the amplitude-modulated base 4 is fixed on the bottom plate, and the linear guide rail 3 can drive the support base 1 to slide in the horizontal direction relative to the amplitude-modulated base 4; the front side of the amplitude modulation seat 4 is provided with a scale 11, a strip-shaped through hole 12 is formed above the scale 11, a pointer pad 5 is arranged in the strip-shaped through hole 12, a locking button 6 is arranged on the pointer pad 5, a pointer 14 pointing to the scale 11 is arranged at the lower end of the pointer pad 5, and the pointer pad 5 can slide in the strip-shaped hole 12 along the horizontal direction; the front of the amplitude modulation seat 4 is provided with a strip-shaped groove, a push wheel guide rail 7 is fixed in the strip-shaped groove, a push wheel 10 is arranged on the push wheel guide rail 7, a push wheel 11 can slide on the push wheel guide rail 7, the push wheel 10 is connected with a push wheel frame 9 and a push wheel fixing frame 8, and the other end of the push wheel fixing frame 8 penetrates through a strip-shaped hole 12 and is fixed with the elastic locking mechanism 2.

As shown in fig. 3, the push wheel fixing frame 8, the elastic locking mechanism 2 and the support base 1 are fixedly connected through two screws 15.

A plurality of screw holes are formed in the bottom surface of the amplitude modulation seat 4 and used for fixing the amplitude modulation seat (4) on the bottom plate through bolts 13, and the installation and the disassembly are convenient.

And a positioning boss is arranged at the bottom of the amplitude modulation seat 4 and is used for being matched with the positioning groove on the bottom plate. The movable field lens can be quickly and accurately positioned and installed on the bottom plate, and the centers of the movable field lens, the incident light and the beam expanding lens are concentric.

The utility model discloses a working process is:

when the mark breadth is marked in the adjustment, only need anticlockwise unscrew locking button, slowly promote the push wheel with the hand, the push wheel is along pushing away the friction of wheel guide rail and slowly gos forward, can realize the accurate removal of whole developments Z axle, observes the pointer and slides to the scale position that required breadth corresponds the scale, then clockwise rotation locking button locks, can accomplish amplitude modulation's work. The utility model discloses an in the adjustment range, promote the optional position can lock tightly fixed, but meticulous accurate adjustment displacement.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a but width of cloth face dynamic focus of accurate adjustment beats mark structure which characterized in that: including support seat (1), elasticity locking mechanism (2), amplitude modulation seat (4), wherein:

the support seat (1) at least comprises a vertical surface and a bottom surface, and the vertical surface is provided with two linear guide rails (3) which are parallel to each other in the horizontal direction;

one end of the elastic locking mechanism (2) is fixed with the vertical surface of the bracket seat (1);

the back of the amplitude modulation seat (4) is fixed with the linear guide rail (3), the bottom of the amplitude modulation seat (4) is fixed on the bottom plate, and the linear guide rail (3) can drive the support seat (1) to slide in the horizontal direction relative to the amplitude modulation seat (4); a scale (11) is arranged on the front surface of the amplitude modulation seat (4), a strip-shaped through hole (12) is formed above the scale (11), a pointer pad (5) is arranged in the strip-shaped through hole (12), a pointer (14) pointing to the scale (11) is arranged at the lower end of the pointer pad (5), and the pointer pad (5) can slide in the strip-shaped through hole (12) along the horizontal direction; the front surface of the amplitude modulation seat (4) is fixedly provided with a push wheel guide rail (7), a push wheel (10) is arranged on the push wheel guide rail (7), the push wheel (10) can slide on the push wheel guide rail (7), the push wheel (10) is connected with a push wheel frame (9) and a push wheel fixing frame (8), and the other end of the push wheel fixing frame (8) penetrates through the strip-shaped through hole (12) and is fixed with the elastic locking mechanism (2).

2. The amplitude surface dynamic focusing marking structure capable of being accurately adjusted according to claim 1, characterized in that: and a locking button (6) is arranged on the pointer pad (5).

3. The amplitude surface dynamic focusing marking structure capable of being accurately adjusted according to claim 1, characterized in that: the elastic locking mechanism (2) is positioned between the two linear guide rails (3).

4. The amplitude surface dynamic focusing marking structure capable of being accurately adjusted according to claim 1, characterized in that: the push wheel fixing frame (8), the elastic locking mechanism (2) and the bracket base (1) are fixedly connected through two screws (15).

5. The amplitude surface dynamic focusing marking structure capable of being accurately adjusted according to claim 1, wherein: the front surface of the amplitude modulation seat (4) is provided with a strip-shaped groove, and the push wheel guide rail (7) is fixed in the strip-shaped groove.

6. The amplitude surface dynamic focusing marking structure capable of being accurately adjusted according to claim 1, wherein: and the bottom surface of the amplitude modulation seat (4) is provided with a plurality of screw holes for fixing the amplitude modulation seat (4) on the bottom plate through bolts (13).

7. The amplitude surface dynamic focusing marking structure capable of being accurately adjusted according to claim 1, wherein: and a positioning boss is arranged at the bottom of the amplitude modulation seat (4) and is used for being matched with the positioning groove on the bottom plate.