CN218193217U

CN218193217U - SLM laser power automatic regulation and control device

Info

Publication number: CN218193217U
Application number: CN202221935252.XU
Authority: CN
Inventors: 骆志高
Original assignee: Nanjing Jinghuan Precision Mould Technology Co ltd
Current assignee: Nanjing Jinghuan Precision Mould Technology Co ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2023-01-03
Anticipated expiration: 2032-07-25

Abstract

The utility model discloses an automatic regulation and control device of SLM laser power, concretely relates to SLM field, including protective housing and laser head, laser head fixed mounting is in protective housing's inside, and protective housing's top intercommunication is equipped with the blast pipe, the inner wall fixedly connected with support piece of blast pipe, and support piece's inner wall is connected with the transmission bull stick through the bearing, the outer wall fixedly connected with rotating fan blade of transmission bull stick, rotating fan blade is the slope form setting, the top fixedly connected with drive gear of transmission bull stick, one side meshing of drive gear has the movable rack, movable rack sliding connection is at the top of blast pipe. The utility model discloses a set up rotating fan blade and extrusion piece, the long-time heat that produces of using of laser head makes atmospheric pressure rise, and atmospheric pressure drives drive gear through rotating fan blade and rotates, finally makes the movable column trigger emergency control switch and closes the laser head, has solved the problem that the laser head uses the back for a long time and heaies up the nobody and close and lead to laser head life to reduce.

Description

SLM laser power automatic regulation and control device

Technical Field

The utility model relates to a SLM technical field, more specifically says, the utility model relates to an automatic regulation and control device of SLM laser power.

Background

The SLM technology is a main technical approach in metal material additive manufacturing, laser is selected as an energy source, layer-by-layer scanning is carried out on a metal powder bed layer according to a planned path in a three-dimensional CAD slicing model, the scanned metal powder achieves the effect of metallurgical bonding through melting and solidification, and finally metal parts designed by the model are obtained.

Traditional SLM laser is when the laser cutting material, and long-time work can make the inside temperature of laser head constantly rise, and the staff does not have timely to the laser head heat dissipation or stop work, and the laser head not only can reduce life, probably is burnt out by high temperature damage even and causes certain economic loss, so how to design one kind can use the automatic regulation and control device of SLM laser power of self-closing after rising the temperature for a long time at the laser head, becomes the problem that we will solve at present.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's above-mentioned defect, the embodiment of the utility model provides a SLM laser power automatic regulation and control device, through having set up rotating fan blade and extrusion piece, the laser head produces the heat after using for a long time and makes atmospheric pressure rise, and atmospheric pressure can drive gear through rotating fan blade and rotate, finally makes the movable post trigger emergency control switch and closes the laser head to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an automatic regulation and control device of SLM laser power, includes protective housing and laser head, laser head fixed mounting is in protective housing's inside, protective housing's top intercommunication is equipped with the blast pipe, the inner wall fixedly connected with support piece of blast pipe, support piece's inner wall is connected with the transmission bull stick through the bearing, the outer wall fixedly connected with rotating fan blade of transmission bull stick, rotating fan blade is the slope form setting, the top fixedly connected with drive gear of transmission bull stick, the meshing of one side of drive gear has the movable rack, movable rack sliding connection is at the top of blast pipe, one side fixedly connected with extrusion piece of movable rack, the extrusion piece sets up to triangle-shaped, one side of extrusion piece is equipped with supporting baffle, supporting baffle's bottom fixedly connected with activity post, the outer wall sliding connection of activity post has the support frame, support frame fixed connection is at protective housing's top, the top fixedly connected with supporting spring of support frame, supporting spring fixed connection is at supporting baffle's top, the bottom of activity post is equipped with emergency control switch, emergency control switch establishes at protective housing's top.

In a preferred embodiment, the number of the squeezing blocks is two, and the two squeezing blocks are arranged in mirror symmetry with respect to a vertical center line of the supporting baffle.

In a preferred embodiment, a limiting strip is fixedly connected to the top of the exhaust pipe, a sliding groove is formed in the bottom of the movable rack, and the limiting strip is slidably connected to the inside of the sliding groove of the movable rack.

In a preferred embodiment, a filter screen is fixedly connected to the top of the exhaust pipe, and the transmission rotating rod is hinged inside the filter screen.

In a preferred embodiment, a supporting shaft is fixedly connected to the top of the protective shell, an arc-shaped stop block is hinged to the outer wall of the supporting shaft, an arc-shaped clamping block is fixedly connected to one side of the movable rack, and the arc-shaped stop block is arranged on one side of the arc-shaped clamping block.

In a preferred embodiment, one side of the arc-shaped stop block is provided with a limit baffle, and the limit baffle is fixedly connected to the top of the protective shell.

In a preferred embodiment, a mounting rack is fixedly connected to the outer wall of the protective shell, and a thread groove is formed in the top of the mounting rack.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a set up rotating fan blade and extrusion piece, the laser head produces the heat after using for a long time and makes atmospheric pressure rise, and atmospheric pressure can drive the drive gear through rotating fan blade and rotate, and drive gear drives the extrusion piece through the movable rack and remove, and the extrusion piece will extrude the supporting baffle and make the movable post move down, and the movable post will trigger emergency control switch and close the laser head, has solved the problem that the laser head reduced in service life because of unmanned shutting of rising temperature after using for a long time like this;

2. the utility model discloses a set up arc fixture block and arc dog, the activity rack can drive the arc fixture block and remove, the arc dog can not stop the arc fixture block when the arc fixture block removes, when the activity rack rebounds because supporting spring's elasticity, the arc fixture block will be blockked by arc dog and limit baffle when removing, the direction that makes the activity rack unable normal direction keep away from supporting baffle removes, avoid hot gas pressure not last to rise unable rotating fan blade of messenger to rotate always, lead to the activity rack after removing to take place to reset.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an enlarged view of the structure of part a of fig. 1.

Fig. 3 is a sectional view of the exhaust pipe structure of the present invention.

Fig. 4 is an enlarged view of a portion B of fig. 3 according to the present invention.

The reference signs are: 1. a protective housing; 2. a laser head; 3. an exhaust pipe; 4. a support member; 5. a transmission rotating rod; 6. rotating the fan blades; 7. a transmission gear; 8. a movable rack; 9. extruding the block; 10. a support baffle; 11. a movable post; 12. a support frame; 13. a support spring; 14. an emergency control switch; 15. a limiting strip; 16. a filter screen; 17. a support shaft; 18. an arc-shaped stop block; 19. an arc-shaped fixture block; 20. a limiting baffle; 21. a mounting frame; 22. a thread groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Referring to the attached drawings 1-4 of the specification, the SLM laser power automatic regulation and control device of an embodiment of the present invention includes a protective casing 1 and a laser head 2, the laser head 2 is fixedly installed inside the protective casing 1, an exhaust pipe 3 for discharging heat dissipated from the laser head 2 is communicated with the top of the protective casing 1, a support member 4 for fixing a transmission rotating rod 5 is fixedly connected to the inner wall of the exhaust pipe 3, the inner wall of the support member 4 is connected to the transmission rotating rod 5 for driving the transmission gear 7 to rotate through a bearing, as shown in fig. 4, a rotating fan blade 6 for driving the transmission rotating rod 5 to rotate is fixedly connected to the outer wall of the transmission rotating rod 5, the rotating fan blade 6 is arranged in an inclined shape, the transmission gear 7 for engaging a movable rack 8 is fixedly connected to the top of the transmission rotating rod 5, a movable rack 8 for driving an extrusion block 9 to move is engaged to one side of the transmission gear 7, the movable rack 8 is connected to the top of the exhaust pipe 3 in a sliding manner, one side of the movable rack 8 is fixedly connected with an extrusion block 9 for extruding a support baffle 10, the extrusion block 9 is triangular, as shown in fig. 3, one side of the extrusion block 9 is provided with the support baffle 10 for driving a movable column 11 to move downwards, the bottom of the support baffle 10 is fixedly connected with the movable column 11 for triggering an emergency control switch 14, the outer wall of the movable column 11 is connected with a support frame 12 for fixing a support spring 13 in a sliding manner, the support frame 12 is fixedly connected to the top of the protective shell 1, the top of the support frame 12 is fixedly connected with a support spring 13 for fixing the support baffle 10, the support spring 13 is fixedly connected to the top of the support baffle 10, the bottom of the movable column 11 is provided with the emergency control switch 14 for controlling the switch of the laser head 2, and the emergency control switch 14 is electrically connected with the laser head 2, emergency control switch 14 establishes at protective housing 1's top, the quantity of extrusion piece 9 is established to two, two extrusion pieces 9 are mirror symmetry setting with the vertical central line that is of supporting baffle 10, the top fixedly connected with of blast pipe 3 is used for carrying out spacing 15 to the removal of activity rack 8, the spout has been seted up to the bottom of activity rack 8, spacing 15 sliding connection is inside the spout of activity rack 8, the top fixedly connected with of blast pipe 3 is used for preventing that the dust from getting into protective housing 1 inside filter screen 16, transmission bull stick 5 articulates the inside at filter screen 16.

It should be noted that, spare parts structures such as rotating fan blade 6 are slim and graceful, the hot atmospheric pressure that laser head 2 produced can drive rotating fan blade 6 and rotate, the hot atmospheric pressure that produces after laser head 2 used for a long time can be discharged through blast pipe 3, hot atmospheric pressure can impact rotating fan blade 6, rotating fan blade 6 will drive transmission bull stick 5 and rotate, transmission bull stick 5 will drive gear 7 and rotate, drive gear 7 will mesh movable rack 8, movable rack 8 will drive extrusion piece 9 and remove, extrusion piece 9 will extrude supporting baffle 10, supporting baffle 10 will drive movable post 11 and move down, movable post 11 will trigger emergency control switch 14 and close laser head 2, the problem that no one closed and lead to laser head life to reduce after the long-time use of laser head has been solved to heat up in the appearance.

Meanwhile, as shown in fig. 2, a supporting shaft 17 for fixing an arc-shaped stop block 18 is fixedly connected to the top of the protective shell 1, the outer wall of the supporting shaft 17 is hinged to the arc-shaped stop block 18 for preventing the movable rack 8 from resetting, one side of the movable rack 8 is fixedly connected to an arc-shaped fixture block 19 for contacting the arc-shaped stop block 18, the arc-shaped stop block 18 is arranged on one side of the arc-shaped fixture block 19, a limit baffle 20 for limiting the rotation of the arc-shaped stop block 18 is arranged on one side of the arc-shaped stop block 18, and the limit baffle 20 is fixedly connected to the top of the protective shell 1.

It should be noted that, the movable rack 8 may drive the arc-shaped block 19 to move when moving, the arc-shaped block 18 may not block the arc-shaped block 19 when the arc-shaped block 19 moves, when the hot air pressure inside the exhaust pipe 3 does not rise any more, the transmission gear 7 does not continue to rotate, the elastic force of the support spring 13 may drive the support baffle 10 to move upwards when rebounding, the support baffle 10 moves upwards to reset the movable rack 8, and when the movable rack 8 resets, the arc-shaped block 19 moves to be blocked by the arc-shaped block 18 and the limit baffle 20, so that the movable rack 8 cannot move towards the direction away from the support baffle 10, and it is avoided that the hot air pressure does not continuously rise and cannot cause the rotating fan blade 6 to rotate all the time, which results in resetting of the movable rack 8 after moving.

Meanwhile, as shown in fig. 1, the outer wall of the protective casing 1 is fixedly connected with a mounting frame 21 for fixing the device conveniently, and the top of the mounting frame 21 is provided with a thread groove 22 for fixing the mounting frame 21 through a bolt.

It should be noted that, the worker can fix the device by bolts through the mounting bracket 21 and the thread groove 22.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," "connecting," and "connecting" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be directly connected, and "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an automatic regulation and control device of SLM laser power, includes protective housing (1) and laser head (2), its characterized in that: the laser head (2) is fixedly arranged inside the protective shell (1), the top of the protective shell (1) is communicated with an exhaust pipe (3), the inner wall of the exhaust pipe (3) is fixedly connected with a support piece (4), the inner wall of the support piece (4) is connected with a transmission rotating rod (5) through a bearing, the outer wall of the transmission rotating rod (5) is fixedly connected with a rotating fan blade (6), the rotating fan blade (6) is arranged in an inclined manner, the top of the transmission rotating rod (5) is fixedly connected with a transmission gear (7), one side of the transmission gear (7) is meshed with a movable rack (8), the movable rack (8) is slidably connected with the top of the exhaust pipe (3), one side of the movable rack (8) is fixedly connected with an extrusion block (9), the extrusion block (9) is arranged in a triangular shape, one side of the extrusion block (9) is provided with a supporting baffle plate (10), the bottom of the supporting baffle plate (10) is fixedly connected with a movable column (11), the outer wall of the movable column (11) is slidably connected with a supporting frame (12), the supporting frame (12) is fixedly connected with the top of the protective shell (1), and the supporting spring (13) is fixedly connected with a supporting baffle plate (13), the bottom of the movable column (11) is provided with an emergency control switch (14), and the emergency control switch (14) is arranged at the top of the protective shell (1).

2. The SLM laser power automatic regulation and control device according to claim 1, characterized in that: the number of the extrusion blocks (9) is set to two, and the two extrusion blocks (9) are arranged in a mirror symmetry mode by using the vertical center line of the supporting baffle (10).

3. The SLM laser power automatic regulation and control device according to claim 1, characterized in that: the top fixedly connected with of blast pipe (3) spacing (15), the spout has been seted up to the bottom of activity rack (8), spacing (15) sliding connection is inside the spout of activity rack (8).

4. The SLM laser power automatic regulation and control device according to claim 3, characterized in that: the top fixedly connected with filter screen (16) of blast pipe (3), transmission bull stick (5) articulates the inside at filter screen (16).

5. The SLM laser power automatic regulation and control device according to claim 3, characterized in that: the top fixedly connected with back shaft (17) of protecting sheathing (1), the outer wall of back shaft (17) articulates there is arc dog (18), one side fixedly connected with arc fixture block (19) of activity rack (8), establish in one side of arc fixture block (19) arc dog (18).

6. The SLM laser power automatic regulation and control device according to claim 5, characterized in that: one side of the arc-shaped stop block (18) is provided with a limit baffle (20), and the limit baffle (20) is fixedly connected to the top of the protective shell (1).

7. The SLM laser power automatic regulation and control device according to claim 6, characterized in that: the outer wall fixedly connected with mounting bracket (21) of protecting sheathing (1), thread groove (22) have been seted up at the top of mounting bracket (21).