CN118237767A

CN118237767A - Key embryo laser cutting device and method

Info

Publication number: CN118237767A
Application number: CN202410503243.0A
Authority: CN
Inventors: 柳高青; 马满秀; 姚国富; 石世国; 傅洪位; 陈福兵; 余伟龙; 楼志荣
Original assignee: Jinhua Jinliu Lock Industry Co ltd
Current assignee: Jinhua Jinliu Lock Industry Co ltd
Priority date: 2024-04-25
Filing date: 2024-04-25
Publication date: 2024-06-25

Abstract

The invention discloses a key embryo laser cutting device and a method, and relates to the technical field of laser cutting; to solve the heat dissipation problem; the device comprises a bearing seat, wherein a portal frame is fixed on the outer wall of the top of the bearing seat through bolts, and a laser cutting mechanism is matched with the bottom of the portal frame through transmission of a motion module; the laser cutting mechanism comprises a mounting seat and a cavity shell movably arranged at the inner side of the bottom of the mounting seat. According to the invention, a cavity structure is formed between the two groups of lenses and the cavity shell, and the cooling liquid can circulate in the cavity by utilizing the water pump, so that the heat dissipation of the lenses is realized, the working reliability of the lenses can be ensured, in addition, the two lenses are respectively arranged to be movable and fixed, when the heat generating efficiency of the lenses is higher, the cooling liquid flow rate can be increased by increasing the power of the water pump, and meanwhile, the cavity between the two lenses can be increased, the quantity of the cooling liquid accommodated in the cavity is increased, and the heat dissipation effect is improved.

Description

Key embryo laser cutting device and method

Technical Field

The invention relates to the technical field of laser cutting, in particular to a key blank laser cutting device and method.

Background

The key blank is a metal blank which is not processed and formed and is usually in a long strip shape or a T shape, scores or bulges are protruded on the metal blank to identify the type of the key, and the material of the key blank is usually brass, copper and steel, so that the key blank is subjected to batch blanking treatment from a plate material by laser cutting during the production of the key blank.

Through retrieving, chinese patent publication No. CN211708404U discloses a panel laser cutting device, including the processing platform, the equal fixedly connected with of upper surface both sides of processing platform supports the curb plate, supports the top fixedly connected with supporting beam of curb plate, and supporting beam's upper surface swing joint has the drive seat, and the top fixedly connected with cylinder of drive seat, the bottom fixedly connected with output shaft of cylinder, the bottom fixedly connected with laser cutting head of output shaft, the spout has all been seted up to the upper surface both sides of processing platform.

The above patent suffers from the following disadvantages: because the laser cutting head needs to utilize the lens group to gather light beam of laser instrument when cutting, then cut, in this process, the lens group gathers light to laser and also can absorb partly laser and produce heat simultaneously, and when the heat can't dispel the heat, the lens can appear situations such as melting deformation.

Therefore, the invention provides a key blank laser cutting device and a method.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a key blank laser cutting device and a method.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

a laser cutting device for key blanks comprises a bearing seat,

The outer wall of the top of the bearing seat is fixedly provided with a portal frame through a bolt, and the bottom of the portal frame is matched with a laser cutting mechanism through a motion module in a transmission way;

The laser cutting mechanism comprises a mounting seat and a cavity shell movably arranged on the inner side of the bottom of the mounting seat, a plurality of laser transmitters are fixedly embedded in the inner wall of the top of the cavity shell, two lenses are arranged in the cavity shell, the lenses positioned below are fixed on the inner wall of the cavity shell through a fixing ring, and the lenses positioned above are connected on the inner wall of the cavity shell in a sliding manner through the fixing ring;

The cavity shell is located the lateral wall between two lenses and welds respectively and communicates and have feed liquor pipe, drain pipe, the other end of feed liquor pipe is connected with the water pump, and the other end of drain pipe is connected with the heat exchanger, and the heat exchanger is connected with same cooling liquid tank with the water pump.

Preferably: the cooling liquid in the cooling liquid tank is transparent cooling liquid.

Further: the opposite sides of the two fixing rings are buckled with springs.

Based on the scheme: the inner wall of drain pipe is fixed to be inlayed and is had the heat pipe, and the equal sliding fit in both ends of heat pipe has the piston, and the outer wall of piston has the piston rod through bolt fastening, and the outer wall of piston rod has the slip board through bolt fastening, and the inner wall of slip board is fixed to be inlayed and is had the electrode circle, and the inner wall contact and the electric fit of electrode circle have the resistance post, and the resistance post is fixed in the outer wall of drain pipe.

Among the foregoing, the preferred one is: the resistance column and the electrode ring are connected in a power supply circuit of the water pump.

As a further scheme of the invention: the outer wall of drain pipe still is fixed with insulating shell, and insulating shell is located the outside of sliding plate.

Meanwhile, a first through hole is formed in the side wall of the cavity shell, a piston cavity ring is welded on the side wall of the cavity shell, which is located at the first through hole, the piston cavity ring is connected to the inner wall of the mounting seat in a sliding mode, and a second through hole is formed in the bottom of the piston cavity ring.

As a preferred embodiment of the present invention: the bottom of the cavity shell is fixedly provided with a guide cover, and one side of the guide cover is connected with a negative pressure pipe.

Simultaneously, the outer wall of drain pipe is fixed and the intercommunication has the volute, and the lateral wall welding of volute has the pump case, and the pump case is connected with same main shaft with the inner wall rotation of pump case, and the inner wall of volute is provided with the turbine blade of welding in the main shaft outer wall, and the inner wall of pump case is provided with the centrifugal blade of welding in the main shaft outer wall, and the axis department of pump case passes through the connecting pipe and connects in the negative pressure pipe.

As a more preferable scheme of the invention: the side wall of the pump shell is welded and communicated with an air outlet nozzle.

The beneficial effects of the invention are as follows:

1. According to the invention, a cavity structure is formed between the two groups of lenses and the cavity shell, and the cooling liquid can circulate in the cavity by utilizing the water pump, so that the heat dissipation of the lenses is realized, the working reliability of the lenses can be ensured, in addition, the two lenses are respectively arranged to be movable and fixed, when the heat generating efficiency of the lenses is higher, the cooling liquid flow rate can be increased by increasing the power of the water pump, and meanwhile, the cavity between the two lenses can be increased, the quantity of the cooling liquid accommodated in the cavity is increased, and the heat dissipation effect is improved.

2. According to the invention, by arranging the resistance column, the electrode ring, the heat conducting pipe, the piston and other parts and combining the characteristics of high lens temperature and high temperature of cooling liquid in the liquid outlet pipe, the positive feedback automatic control of the water pump power can be realized by utilizing the characteristic of thermal expansion of gas.

3. According to the invention, the mounting seat and the cavity shell are connected by the piston cavity ring, so that the piston cavity ring can also move along with the movement of the lens when the lens moves under the condition of ensuring reliable heat dissipation, the downward movement of a focus can be compensated, and the effect of laser cutting is increased.

4. According to the invention, by arranging the turbine blades, the centrifugal blades and other parts, on one hand, the power of negative pressure dust collection and the flowing power of cooling liquid can be integrated, and the power arrangement and the power control logic are reduced, and on the other hand, the smoke temperature is relatively large, and the smoke can also exchange heat with the cooling liquid in the volute when flowing through the pump shell, so that the temperature of the smoke can be reduced.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a laser cutting device for key blanks according to the present invention;

fig. 2 is a schematic diagram of a laser cutting mechanism of a key blank laser cutting device according to the present invention;

Fig. 3 is a schematic diagram of an internal structure of a laser cutting mechanism of a key blank laser cutting device according to the present invention;

Fig. 4 is a schematic diagram of a pipeline structure of a laser cutting device for key blanks according to the present invention;

FIG. 5 is a schematic view of a laser cutting device for key blanks according to the present invention;

Fig. 6 is a schematic circuit diagram of a laser cutting device for key blanks according to the present invention;

fig. 7 is a schematic diagram of a flow guide cover and a negative pressure tube of a laser cutting device for key blanks according to the present invention;

fig. 8 is a schematic view of a turbine blade and a centrifugal blade of a laser cutting device for key blanks according to the present invention.

In the figure: 1. a bearing seat; 2. a portal frame; 3. a motion module; 4. a laser cutting mechanism; 5. a mounting base; 6. a water pump; 7. a liquid inlet pipe; 8. a cavity shell; 9. a liquid outlet pipe; 10. a lens; 11. a fixing ring; 12. a spring; 13. the first through hole is formed; 14. a piston cavity ring; 15. a second through hole; 16. a laser emitter; 17. a heat conduction pipe; 18. a piston; 19. a piston rod; 20. an insulating case; 21. a resistor column; 22. an electrode ring; 23. a slip plate; 24. a guide cover; 25. a negative pressure pipe; 26. a connecting pipe; 27. an air outlet nozzle; 28. a turbine blade; 29. a main shaft; 30. centrifugal blades; 31. a scroll; 32. and a pump shell.

Detailed Description

The technical scheme of the invention is further described in detail below with reference to the specific embodiments.

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

Example 1: the utility model provides a key embryo laser cutting device, as shown in fig. 1-8, includes and bears seat 1, the top outer wall that bears seat 1 is fixed with portal frame 2 through the bolt, and the bottom of portal frame 2 is through the transmission of motion module 3 cooperation has laser cutting mechanism 4.

In this embodiment, the specific structure of the moving module 3 is not limited, and it is intended to drive the laser cutting mechanism 4 to move along X, Y, Z axes, so as to meet the cutting path requirement, and the conventional structures such as "screw-slider" and "electric slide rail-slider" are utilized, which are conventional means for those skilled in the art, and the present embodiment does not make creative work thereon, so that details are not repeated.

The laser cutting mechanism 4 comprises a mounting seat 5 and a cavity shell 8 movably arranged at the inner side of the bottom of the mounting seat 5, a plurality of laser transmitters 16 are fixedly embedded in the inner wall of the top of the cavity shell 8, two lenses 10 are arranged in the cavity shell 8, the lenses 10 located below are fixed on the inner wall of the cavity shell 8 through fixing rings 11, and the lenses 10 located above are connected to the inner wall of the cavity shell 8 in a sliding mode through the fixing rings 11.

The side walls of the cavity shell 8 between the two lenses 10 are respectively welded and communicated with a liquid inlet pipe 7 and a liquid outlet pipe 9, the other end of the liquid inlet pipe 7 is connected with a water pump 6, the other end of the liquid outlet pipe 9 is connected with a heat exchanger, and the heat exchanger and the water pump 6 are connected with the same cooling liquid tank.

The cooling liquid in the cooling liquid tank is transparent cooling liquid, such as deionized water.

The opposite sides of the two fixing rings 11 are fastened with springs 12.

When the device is used, a plate to be cut can be placed and fixed on the bearing seat 1, the laser emitter 16 is started afterwards, laser beams emitted by the laser emitter 16 are focused by the two lenses 10 and then are emitted to the surface of the plate, then the movement module 3 drives the laser cutting mechanism 4 to move along a preset cutting path, cutting of a key blank can be performed, meanwhile, the water pump 6 is started, cooling liquid of the cooling liquid tank can be pumped and conveyed between the two lenses 10, so that heat energy generated by laser absorption by the lenses 10 is taken away, and then heat exchange cooling is performed through the heat exchanger to flow into the cooling liquid tank.

This device, through setting up two sets of lenses 10, form the cavity structure between its and the cavity shell 8, and utilize water pump 6 can make the coolant liquid circulate in the cavity, thereby realize lens 10's heat dissipation, thereby can guarantee the reliability of its work, in addition, set up two lenses 10 into movable and fixed respectively, when lens 10's heat production efficiency is higher, the power that the accessible increases water pump 6 makes the coolant liquid velocity increase, can also make the cavity increase between two lenses 10 simultaneously, increase the volume of holding coolant liquid, increase the radiating effect.

In order to solve the automatic control problem; as shown in fig. 5, the inner wall of the liquid outlet pipe 9 is fixedly embedded with a heat conducting pipe 17, two ends of the heat conducting pipe 17 are slidably matched with pistons 18, the outer wall of each piston 18 is fixedly provided with a piston rod 19 through bolts, the outer wall of each piston rod 19 is fixedly provided with a sliding plate 23 through bolts, the inner wall of each sliding plate 23 is fixedly embedded with an electrode ring 22, the inner walls of the electrode rings 22 are in contact and are electrically matched with a resistor column 21, and the resistor column 21 is fixed on the outer wall of the liquid outlet pipe 9.

The resistor column 21 and the electrode ring 22 are connected to a power supply circuit of the water pump 6.

An insulating shell 20 is also fixed on the outer wall of the liquid outlet pipe 9, and the insulating shell 20 is positioned on the outer side of the sliding plate 23.

When the laser energy absorbed by the lens 10 is more and the heat generation is more, the temperature of the cooling liquid flowing in the liquid outlet pipe 9 is correspondingly higher, so that the temperature of the gas in the heat conducting pipe 17 is increased to expand, the piston 18 is ejected outwards, the sliding plate 23 is moved, the matching position of the electrode ring 22 and the resistor column 21 is changed, the resistance value of the resistor column 21 in the circuit of the water pump 6 is reduced, the partial pressure and the partial pressure of the water pump 6 are increased, the power is increased, and the flow rate of the cooling liquid are increased.

The device combines the characteristics of high temperature of the lens 10 and high temperature of the cooling liquid in the liquid outlet pipe 9 by arranging the components such as the resistor column 21, the electrode ring 22, the heat conducting pipe 17, the piston 18 and the like, thereby realizing the positive feedback automatic control of the power of the water pump 6 by utilizing the characteristic of thermal expansion of gas.

Since the refraction path of the laser in the cooling liquid is increased after the specific increase of the two lenses 10, the focal position is moved downwards, so that the laser is not focused, and the workpiece cutting effect is poor, so that the problem of hunger and thirst of precision is solved; as shown in fig. 3, the side wall of the cavity shell 8 is provided with a first through hole 13, the side wall of the cavity shell 8 at the first through hole 13 is welded with a piston cavity ring 14, the piston cavity ring 14 is slidably connected to the inner wall of the mounting seat 5, and the bottom of the piston cavity ring 14 is provided with a second through hole 15.

When the lens 10 above moves, the gas in the cavity above the cavity shell 8 is compressed, so that the compressed gas flows into the piston cavity ring 14 through the first through hole 13 and flows out through the second through hole 15, so that the piston cavity ring 14 moves upwards, and the cavity shell 8 is driven to move upwards.

According to the device, the mounting seat 5 and the cavity shell 8 are connected by the piston cavity ring 14, so that when the lens 10 moves under the condition of ensuring reliable heat dissipation, the piston cavity ring 14 can also move along with the movement of the lens 10, the downward movement amount of a focus can be compensated, and the effect of laser cutting is improved.

In order to solve the dust removal problem; as shown in fig. 7, a guide cover 24 is fixed at the bottom of the cavity shell 8, and a negative pressure pipe 25 is connected to one side of the guide cover 24.

When the laser is used for cutting, smoke dust exists on the surface of the plate, negative pressure can be generated by the negative pressure pipe 25, and the smoke dust is adsorbed by the air guide sleeve 24.

In order to solve the problem of negative pressure; as shown in fig. 8, the outer wall of the liquid outlet pipe 9 is fixed with and communicated with a volute 31, the side wall of the volute 31 is welded with a pump shell 32, the pump shell 32 and the inner wall of the pump shell 32 are rotationally connected with the same main shaft 29, the inner wall of the volute 31 is provided with turbine blades 28 welded on the outer wall of the main shaft 29, the inner wall of the pump shell 32 is provided with centrifugal blades 30 welded on the outer wall of the main shaft 29, the side wall of the pump shell 32 is welded with and communicated with an air outlet nozzle 27, and the axis of the pump shell 32 is connected with the negative pressure pipe 25 through a connecting pipe 26.

A filter may also be connected to the outlet nozzle 27 to filter impurities from the smoke.

When the cooling liquid flows through the liquid outlet pipe 9, a fluid acting force is generated on the turbine blade 28, so that the turbine blade 28 rotates, then the turbine blade 28 drives the centrifugal blade 30 to rotate through the main shaft 29, the centrifugal blade 30 agitates the gas in the volute 31, the gas is discharged out of the air outlet nozzle 27 through centrifugal force, then negative pressure is generated in the pump shell 32, and the negative pressure is transmitted to the negative pressure pipe 25 through the connecting pipe 26.

The device can integrate the power of negative pressure dust collection and the flowing power of cooling liquid by arranging the turbine blades 28, the centrifugal blades 30 and other parts, reduce the power arrangement and the power control logic, and realize the cooling of the smoke because the smoke has relatively high temperature and can exchange heat with the cooling liquid in the volute 31 when flowing through the pump shell 32.

In this embodiment, when in use, the plate to be cut can be placed and fixed on the bearing seat 1, then the laser emitter 16 is started, the laser beam emitted by the laser emitter 16 is focused by the two lenses 10 and then is emitted to the surface of the plate, then the moving module 3 drives the laser cutting mechanism 4 to move along the preset cutting path, cutting of the key blank can be performed, meanwhile, the water pump 6 is started, the cooling liquid of the cooling liquid tank can be pumped and conveyed between the two lenses 10, so that the lenses 10 absorb the heat energy generated by the laser, then the heat exchange cooling flow is performed through the heat exchanger to the cooling liquid tank, and when the laser energy absorbed by the lenses 10 is more and the heat generation quantity is more, the temperature of the cooling liquid flowing in the liquid outlet pipe 9 is correspondingly higher, so that the gas temperature in the heat conducting pipe 17 is increased and expanded, the piston 18 is ejected outwards, the sliding plate 23 is enabled to move, the matching position of the electrode ring 22 and the resistance column 21 is changed, the resistance value in the circuit of the water pump 6 is reduced, the partial pressure of the water pump 6 is increased, the power is increased, the cooling liquid and the partial pressure of the water pump 6 is increased, and the cooling liquid flows through the turbine blades 28 and the impeller shell 28 are driven by the centrifugal force and the impeller shell 28, and the negative pressure 30, and the negative pressure is then is rotated by the impeller shell 28, and the negative pressure 30.

Example 2: a method of a key blank laser cutting device, as shown in fig. 1-8, comprising the steps of:

S1: placing the plate on the bearing seat 1 and fixing the plate;

S2: planning a movement path of the movement module 3 according to the shape of the key blank;

S3: the laser emitter 16 is started, and the motion module 3 is started to cut.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. A key blank laser cutting device, which comprises a bearing seat (1), and is characterized in that,

The outer wall of the top of the bearing seat (1) is fixedly provided with a portal frame (2) through bolts, and the bottom of the portal frame (2) is matched with a laser cutting mechanism (4) through a motion module (3) in a transmission way;

The laser cutting mechanism (4) comprises a mounting seat (5) and a cavity shell (8) movably arranged at the inner side of the bottom of the mounting seat (5), a plurality of laser transmitters (16) are fixedly embedded in the inner wall of the top of the cavity shell (8), two lenses (10) are arranged in the cavity shell (8), the lenses (10) positioned below are fixed on the inner wall of the cavity shell (8) through fixing rings (11), and the lenses (10) positioned above are connected to the inner wall of the cavity shell (8) in a sliding manner through the fixing rings (11);

the cavity shell (8) is located between two lenses (10), the side walls of the cavity shell are respectively welded and communicated with a liquid inlet pipe (7) and a liquid outlet pipe (9), the other end of the liquid inlet pipe (7) is connected with a water pump (6), the other end of the liquid outlet pipe (9) is connected with a heat exchanger, and the heat exchanger and the water pump (6) are connected with the same cooling liquid tank.

2. The laser cutting device for key blanks according to claim 1, wherein the cooling liquid in the cooling liquid tank is transparent cooling liquid.

3. A key blank laser cutting device according to claim 1, characterized in that the opposite sides of the two fixing rings (11) are fastened with springs (12).

4. The key blank laser cutting device according to claim 1, wherein the inner wall of the liquid outlet pipe (9) is fixedly embedded with a heat conducting pipe (17), two ends of the heat conducting pipe (17) are slidably matched with pistons (18), the outer wall of each piston (18) is fixedly provided with a piston rod (19) through bolts, the outer wall of each piston rod (19) is fixedly provided with a sliding plate (23) through bolts, the inner wall of each sliding plate (23) is fixedly embedded with an electrode ring (22), the inner wall of each electrode ring (22) is in contact with and electrically matched with a resistor column (21), and the resistor columns (21) are fixed on the outer wall of the liquid outlet pipe (9).

5. The laser cutting device for key blanks according to claim 4, wherein the resistor column (21) and the electrode ring (22) are connected to a power supply circuit of the water pump (6).

6. The laser cutting device for key blanks according to claim 4, wherein the outer wall of the liquid outlet pipe (9) is further fixedly provided with an insulating shell (20), and the insulating shell (20) is positioned on the outer side of the sliding plate (23).

7. The key blank laser cutting device according to claim 1, wherein a through hole I (13) is formed in the side wall of the cavity shell (8), a piston cavity ring (14) is welded on the side wall of the cavity shell (8) located at the through hole I (13), the piston cavity ring (14) is slidably connected to the inner wall of the mounting seat (5), and a through hole II (15) is formed in the bottom of the piston cavity ring (14).

8. The key embryo laser cutting device according to claim 1, wherein a guide cover (24) is fixed at the bottom of the cavity shell (8), and a negative pressure pipe (25) is connected to one side of the guide cover (24).

9. The key blank laser cutting device according to claim 8, wherein the outer wall of the liquid outlet pipe (9) is fixed and communicated with a volute (31), a pump shell (32) is welded on the side wall of the volute (31), the pump shell (32) and the inner wall of the pump shell (32) are rotationally connected with the same main shaft (29), turbine blades (28) welded on the outer wall of the main shaft (29) are arranged on the inner wall of the volute (31), centrifugal blades (30) welded on the outer wall of the main shaft (29) are arranged on the inner wall of the pump shell (32), and the axis of the pump shell (32) is connected with the negative pressure pipe (25) through a connecting pipe (26).

10. A key blank laser cutting device according to claim 9, wherein the side wall of the pump housing (32) is welded and communicates with the air outlet nozzle (27).