CN217654425U

CN217654425U - High-precision laser focus measuring device

Info

Publication number: CN217654425U
Application number: CN202123333043.6U
Authority: CN
Inventors: 刘庆京; 朱凯
Original assignee: Nanjing Vulcan Photonics Technology Co ltd
Current assignee: Nanjing Vulcan Photonics Technology Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-10-25
Anticipated expiration: 2031-12-28

Abstract

The utility model relates to the technical field of laser processing, in particular to a high-precision laser focus measuring device, which comprises a laser head, wherein the lower end of the surface of the laser head is provided with a connecting ring, the inner wall of the connecting ring is fixedly connected with a buffer gasket, the top of the buffer gasket is contacted with the surface of the laser head, and the connecting ring and the laser head have the same axle center; the upper end of the connecting structure is in threaded connection with the inner wall of the connecting ring, and the connecting structure and the connecting ring are coaxial; an auxiliary structure; through setting up auxiliary structure, connection structure and go-between, connection structure can be dismantled in quick installation, and then can be through dismantling connection structure after the measurement is accomplished to the scale mark on the cooperation indicator rod carries out the reading, need not staff's reading of bowing, has reduced the influence to staff's health, and connection structure can carry out spacingly to the position of indicator rod, and the influence that the staff need bow the reading for a long time and cause when having reduced a plurality of laser head focuses and measuring.

Description

High-precision laser focus measuring device

Technical Field

The utility model relates to a laser beam machining technical field, very much relate to high accuracy laser focus measuring device.

Background

For laser processing of products made of different materials, different defocusing amounts need to be set, and in order to ensure the laser processing precision, the focal distance of a laser beam needs to be measured accurately.

At present, the existing laser head focus measuring device needs a worker to bend for a long time to read the distance between a focus point and a laser head in the process of carrying out focus measurement on a plurality of laser heads, influences the body of the worker greatly after bending for a long time, easily causes waist diseases, and can not well meet the existing requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high accuracy laser focus measuring device just in order to solve above-mentioned problem, improve the great problem of current device focus and laser interval reading mode to staff's health influence.

The utility model discloses a following technical scheme realizes above-mentioned purpose, high accuracy laser focus measuring device, include: the laser head comprises a laser head, wherein a connecting ring is arranged at the lower end of the surface of the laser head, a buffer gasket is fixedly connected to the inner wall of the connecting ring, the top of the buffer gasket is in contact with the surface of the laser head, and the connecting ring and the laser head are coaxial; the upper end of the connecting structure is in threaded connection with the inner wall of the connecting ring, and the connecting structure and the connecting ring are coaxial; the auxiliary structure is arranged in the connecting structure, the lower end of the auxiliary structure penetrates through the auxiliary structure and extends to the outside of the auxiliary structure, and the auxiliary structure and the connecting structure are coaxial.

Preferably, the connection structure comprises a connection shell in threaded connection with the inner wall of the connection ring, the lower end of the connection shell penetrates through the connection ring and extends to the outside of the connection shell, two ejection blocks which are symmetrically distributed are connected inside the connection shell in a sliding manner, and one side of each ejection block penetrates through the connection shell and extends to the inner side of the connection shell.

Preferably, the other side of the ejection block is fixedly connected with uniformly distributed connecting rods, the other end of each connecting rod penetrates through the connecting shell and is fixedly connected with a pressing block located on the outer side of the connecting shell, and first uniformly distributed springs are fixedly connected between one side of the ejection block close to the connecting rods and the connecting shell.

Preferably, the inner side of the connecting shell is fixedly connected with clamping blocks positioned on two sides of the ejection block, and the cross sections of the clamping blocks are right-angled triangles.

Preferably, the auxiliary structure comprises a stop block slidably connected to the inner side of the connecting shell, an indicating rod is fixedly connected to the bottom of the stop block, the diameter of the indicating rod is smaller than that of the stop block, and the lower end of the indicating rod penetrates through the connecting shell.

Preferably, the surface of the stop block is provided with a sliding groove, and the stop block is provided with a sliding groove

The inner wall sliding connection of spout has the baffle, the baffle is close to one side fixedly connected with second spring of dog axle center department, the other end of second spring and the inner wall fixed connection of dog.

Preferably, the bottom of the indication rod is rotatably connected with a ball, and the surface of the indication rod is provided with scale marks.

The utility model has the advantages that:

1. through setting up auxiliary structure, connection structure and go-between, connection structure can be dismantled in quick installation, and then can be through dismantling connection structure after the measurement is accomplished to the scale mark on the cooperation indicator rod carries out the reading, need not staff's reading of bowing, has reduced the influence to staff's health, and connection structure can carry out spacingly to the position of indicator rod, and the influence that the staff need bow the reading for a long time and cause when having reduced a plurality of laser head focuses and measuring.

2. Through setting up connection structure, after the measurement is accomplished, can contact the spacing to the pilot lever through the mode of two pressing plates of extrusion, and then the quick pulling pilot lever resets, the reuse of being convenient for, easy and simple to handle, the shrink of pilot lever can not be influenced in the setting of fixture block simultaneously, when the ball removed to the sloping block ablation line finest department, the position that the ball was the focus this moment, the ball can reduce the frictional force between device and the sloping block, can make the laser head translation more stable.

Drawings

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

FIG. 2 is a sectional perspective view of the present invention;

FIG. 3 is a schematic structural view of the auxiliary structure of the present invention;

fig. 4 is a schematic structural diagram of the connection structure of the present invention.

In the figure: 1. a laser head; 2. a connecting ring; 201. a cushion washer; 3. a connecting structure; 301. a connecting shell; 302. ejecting a block; 303. a connecting rod; 304. a clamping block; 305. a first spring; 306. a pressing block; 4. an auxiliary structure; 401. a stopper; 402. an indication lever; 403. a chute; 404. scale marks; 405. a baffle plate; 406. a second spring; 407. and a ball.

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.

In the specific implementation: as shown in fig. 1 to 4, the high-precision laser focus measuring apparatus includes: the laser head comprises a laser head 1, wherein a connecting ring 2 is arranged at the lower end of the surface of the laser head 1, a buffer gasket 201 is fixedly connected to the inner wall of the connecting ring 2, the top of the buffer gasket 201 is in contact with the surface of the laser head 1, and the connecting ring 2 and the laser head 1 are coaxial; the upper end of the connecting structure 3 is in threaded connection with the inner wall of the connecting ring 2, and the connecting structure 3 and the connecting ring 2 are coaxial; auxiliary structure 4, auxiliary structure 4 set up in connection structure 3's inside, and auxiliary structure 4's lower extreme runs through auxiliary structure 4 and extends to auxiliary structure 4's outside, and auxiliary structure 4 and connection structure 3 are coaxial, and go-between 2, connection structure 3 and auxiliary structure 4 with the axle center setting can be convenient for measure the focus of laser head 1, have improved the measurement accuracy.

As shown in fig. 1, 2 and 4, the connection structure 3 includes a connection shell 301 screwed to an inner wall of the connection ring 2, a lower end of the connection shell 301 penetrates through the connection ring 2 and extends to an outside of the connection shell 301, two ejection blocks 302 symmetrically distributed and in number are slidably connected to an inside of the connection shell 301, one side of each ejection block 302 penetrates through the connection shell 301 and extends to an inside of the connection shell 301, the connection shell 301 can be quickly disassembled by screwing or unscrewing, so that the connection shell 301 and the connection shell 2 are quickly assembled and disassembled, the buffer washer 201 is arranged during the installation process to prevent the laser head 1 from being damaged due to excessive extrusion on the laser head 1, the other side of each ejection block 302 is fixedly connected with uniformly distributed connection rods 303, the other end of each connection rod 303 penetrates through the connection shell 301 and is fixedly connected with a pressing block 306 located on an outside of the connection shell 301, first springs 305 uniformly distributed and fixedly connected between one side of the ejection block 302 close to the connection shell 303 and the connection shell 301, the pressing blocks 306 on the other side of the connection shell 303 can be gradually pushed by the pressing blocks 306 located on two sides of the adjacent ejection blocks 302, and the adjacent ejection blocks 302 can be gradually pushed by the pushing the first springs 304 in the process of the ejection blocks 304, and the ejection blocks 302, the pushing of the ejection blocks 302, and the ejection blocks 302, the pushing of the ejection blocks 302 can be gradually pushed by the pushing of the ejection blocks 302 in the connection shell 302.

As shown in fig. 1, 2 and 3, the auxiliary structure 4 includes a stopper 401 slidably connected to the inner side of the connecting shell 301, an indicating rod 402 is fixedly connected to the bottom of the stopper 401, the diameter of the indicating rod 402 is smaller than that of the stopper 401, the lower end of the indicating rod 402 penetrates through the connecting shell 301, a sliding groove 403 is formed in the surface of the stopper 401, a baffle 405 is slidably connected to the inner wall of the sliding groove 403, a second spring 406 is fixedly connected to one side of the baffle 405 near the axial center of the stopper 401, the other end of the second spring 406 is fixedly connected to the inner wall of the stopper 401, a ball 407 is rotatably connected to the bottom of the indicating rod 402, a scale mark 404 is provided on the surface of the indicating rod 402, the indicating rod 402 is provided for measuring the distance between the laser head 1 and the focal point, the laser head 1 is drawn on the inclined block in advance, and the connecting structure 3 is installed through the connecting ring 2, the laser head 1 is moved along the inclined block, in the process, the ball 407 is contacted with the surface of the oblique block so as to move along the ablation line on the oblique block, in the process, due to the blocking of the inclined surface of the oblique block, the indicating rod 402 can be gradually jacked and retracted to the inside of the connecting shell 301 through the ball 407 in the moving process until the indicating rod moves to the thinnest position of the ablation line, at the moment, the position of the ball 407 is the position of the focal point of the laser head 1, in the retracting process of the indicating rod 402, the stopper 401 can synchronously move along with the indicating rod 402 so as to drive the baffle 405 to synchronously ascend, in the moving process, the baffle 405 is contacted with the inclined surface of the fixture block 304 so as to be extruded and retracted by the inclined surface of the fixture block 304, so that the movement of the indicating rod 402 is not influenced, in the retracting process of the baffle 405, the second spring 406 can be extruded until the baffle 405 moves to the interval between the fixture block 304 and the next fixture block 304, namely, the baffle 405 can be driven to reset under the action of the second spring 406, baffle 405 can be blocked by fixture block 304 this moment, prevent that instruction pole 402 from landing under the effect of self gravity, be convenient for the staff through unscrewing connecting shell 301 and take off connection structure 3 and auxiliary structure 4, and cooperate scale mark 404 to obtain the distance of focus and laser head 1, it reads to need not the staff to bow, the uncomfortable of the health that the work of bowing for a long time leads to has been avoided, the reading is taken notes back accessible and is extruded two and press the piece 306, and then drive ejecting piece 302 and push up the shrink of baffle 405 under the effect of two pressure pieces 306, thereby can pull instruction pole 402 and move the removal downwards and reset and be convenient for reuse, can assist staff pulling under the gravity of this in-process instruction pole 402 self and reset, it is more convenient to use, in this process dog 401 can slide along the opposite side of two fixture blocks 304 through spout 403, make the dog 401 remove more steadily.

The utility model discloses when using, use the device to carry out the focus when measuring laser head 1, earlier ablate corresponding sloping block surface through laser head 1, and then make sloping block surface produce ablation line, screw through connecting shell 301 and go-between 2 and be connected, laser head 1 after connection structure 3 and auxiliary structure 4 is installed in the translation again, ball 407 can remove along the ablation line on sloping block surface at the in-process that laser head 1 removed this moment, can make ball 407 drive instruction pole 402 shrink gradually to the inside of connecting shell 301 under the inclined plane apical motion of sloping block, when moving to the finest department of ablation line, the position at ball 407 place is laser head 1's focus position this moment, after noting laser head 1 focus position, take out the sloping block, can cooperate baffle 405 to carry out spacing to the position of instruction pole 402 under the effect of fixture block 304 this moment, the staff separates it with go-between 2 at swivelling joint shell 301, cooperate scale line 404 and the interval of laser head 1 to carry out the reading again, compare the measuring mode of measuring personnel's bow, this mode need not to avoid the staff to carry out the harm to a plurality of laser head 1 health measurement time.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. High accuracy laser focus measuring device, its characterized in that includes:

the laser head comprises a laser head (1), wherein a connecting ring (2) is arranged at the lower end of the surface of the laser head (1), a buffer gasket (201) is fixedly connected to the inner wall of the connecting ring (2), the top of the buffer gasket (201) is in contact with the surface of the laser head (1), and the connecting ring (2) and the laser head (1) are coaxial;

the upper end of the connecting structure (3) is in threaded connection with the inner wall of the connecting ring (2), and the connecting structure (3) and the connecting ring (2) are coaxial;

auxiliary structure (4), auxiliary structure (4) set up in connection structure (3) inside, auxiliary structure (4) is run through to auxiliary structure (4) and extend to the outside of auxiliary structure (4) to the lower extreme of auxiliary structure (4), auxiliary structure (4) and connection structure (3) are coaxial.

2. The high-precision laser focus measuring apparatus according to claim 1, characterized in that: the connecting structure (3) comprises a connecting shell (301) which is in threaded connection with the inner wall of the connecting ring (2), the lower end of the connecting shell (301) penetrates through the connecting ring (2) and extends to the outside of the connecting shell (301), the connecting shell (301) is internally and slidably connected with two ejection blocks (302) which are symmetrically distributed, and one side of each ejection block (302) penetrates through the connecting shell (301) and extends to the inner side of the connecting shell (301).

3. The high-precision laser focus measuring apparatus according to claim 2, characterized in that: the other side of the ejection block (302) is fixedly connected with uniformly distributed connecting rods (303), the other end of each connecting rod (303) penetrates through the connecting shell (301) and is fixedly connected with a pressing block (306) located on the outer side of the connecting shell (301), and first uniformly distributed springs (305) are fixedly connected between one side, close to the connecting rods (303), of the ejection block (302) and the connecting shell (301).

4. The high-precision laser focus measuring apparatus according to claim 3, characterized in that: the inner side of the connecting shell (301) is fixedly connected with clamping blocks (304) positioned on two sides of the ejection block (302), and the cross section of each clamping block (304) is a right-angled triangle.

5. The high-precision laser focus measuring apparatus according to claim 2, characterized in that: the auxiliary structure (4) comprises a stop block (401) which is connected to the inner side of the connecting shell (301) in a sliding mode, an indicating rod (402) is fixedly connected to the bottom of the stop block (401), the diameter of the indicating rod (402) is smaller than that of the stop block (401), and the lower end of the indicating rod (402) penetrates out of the connecting shell (301).

6. The high-precision laser focus measuring apparatus according to claim 5, wherein: the surface of the stop block (401) is provided with a sliding groove (403), the inner wall of the sliding groove (403) is connected with a baffle (405) in a sliding mode, one side, close to the axis of the stop block (401), of the baffle (405) is fixedly connected with a second spring (406), and the other end of the second spring (406) is fixedly connected with the inner wall of the stop block (401).

7. The high-precision laser focus measuring apparatus according to claim 5, wherein: the bottom of the indication rod (402) is rotatably connected with a ball (407), and the surface of the indication rod (402) is provided with scale marks (404).