CN214774027U

CN214774027U - Multiple high-efficient cooling gas protection vibration material disk equipment

Info

Publication number: CN214774027U
Application number: CN202022705366.2U
Authority: CN
Inventors: 钟俊超; 卓炎; 李骏棋
Original assignee: Foshan Yuren Intelligent Technology Co ltd
Current assignee: Foshan Yuren Intelligent Technology Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-11-19
Anticipated expiration: 2030-11-20

Abstract

The utility model provides a multiple high-efficient cooling gas protection vibration material disk equipment, has the printing apparatus main part, the printing apparatus main part has the frame, is equipped with the printing work platform in the frame, the inside and outside of work platform is equipped with multiple high-efficient cooling system, is circulating air cooling system, cooling circuit system and dot matrix cooling module system respectively; the circulating air cooling system is arranged on the working platform and used for improving or maintaining the heat exchange efficiency of the surface of the printing workpiece on the working platform; a cooling loop in the cooling loop system is arranged in the working platform and used for directly cooling the working platform so as to indirectly cool a printing workpiece on the working platform; the dot matrix cooling module system is arranged above the printing platform and is used for carrying out direct contact type cooling on the surface of the printed workpiece in a mode of contacting with the surface of the printed workpiece. The machining quality and precision of the workpiece are guaranteed, and the machining of the workpiece can be efficiently and quickly completed by the aid of the auxiliary tool.

Description

Multiple high-efficient cooling gas protection vibration material disk equipment

Technical Field

The utility model relates to a vibration material disk field, concretely relates to multiple high-efficient cooling gas protects vibration material disk equipment.

Background

Additive manufacturing is a general term for a series of processes. The principle of the method is briefly summarized, namely, a digitalized three-dimensional model file is converted into a three-dimensional object layer by layer through layer-by-layer superposition. However, high heat input in additive manufacturing causes rapid temperature rise of a workpiece, and especially, if input heat in a surfacing process is not timely removed, the input heat is conducted to printing equipment parts, so that the parts can work in a high-temperature state for a long time, and the service life and the machining precision are influenced.

In order to ensure the product quality, a relatively stable temperature level is required to be maintained when a workpiece is printed, therefore, a natural cooling mode of halt waiting is mostly used in the existing production process, however, air is a poor heat conductor, a high-temperature object is placed in a standing air environment, obvious temperature stratification can occur in the air on the surface of the object, the air layer in direct contact with the object can absorb the heat of the workpiece to raise the temperature, and the outer layer of air can not obtain the heat due to the poor heat conductivity of the air, and finally, a small layer of air on the surface of the workpiece is leveled with the temperature of the workpiece to stop heat conduction, and only heat radiation is used for dissipating the heat, so that the cooling effect is extremely poor, the cooling efficiency is extremely low, the processing and manufacturing efficiency is influenced, and the wide application and development of the additive manufacturing technology are limited.

If water cooling is used, although the cooling efficiency can be improved to a certain extent, the oxidation resistance of partial materials is not suitable for direct water cooling, or uncontrollable direct water cooling can cause too fast cooling, and product defects are generated. Particularly, the gas-shielded material increase process has certain requirements on the ambient temperature and humidity, and can be carried out under a stable working condition to ensure the product quality, the printing efficiency and the product quality are influenced by overhigh temperature, and the product defects are caused by overhigh temperature; when the humidity is higher than the forming humidity requirement of the material, the internal air holes of the formed product are obviously increased in a lower humidity environment, and because the environmental temperature and the humidity have a larger relationship with factors such as regions, seasons and the like, the metal forming is sensitive to the factors, and the process technology in the additive manufacturing is the result researched under a certain single working condition, if the working condition factors are greatly changed in practical application, the process scheme is required to be greatly adjusted, and even the scheme is invalid. Therefore, a need exists in the art for an additive manufacturing apparatus that can efficiently and quickly assist a workpiece in completing a process under a steady-state condition to ensure the processing quality and precision of the workpiece.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a multiple high-efficient cooling gas protects vibration material disk equipment through setting up circulation air cooling system, cooling circuit system and dot matrix cooling module system, realizes the multiple indirect and direct high-efficient cooling to the printing work piece, for the gas protects vibration material disk equipment provides temperature, humidity relatively stable's operating mode to reach and improve work piece machining precision and manufacturing efficiency, reduce the energy consumption simultaneously, easily control quality and solidification process's purpose.

The technical scheme of the utility model is realized like this:

a multiple high-efficiency cooling gas protection material increase device is provided with a printing device main body, wherein the printing device main body is provided with a rack, and a working platform is arranged on the rack;

the circulating air cooling system is arranged on the working platform and used for improving or maintaining the heat exchange efficiency of the surface of the printing workpiece on the working platform;

a cooling loop in the cooling loop system is arranged in the working platform and used for directly cooling the working platform so as to indirectly cool a printing workpiece on the working platform;

the dot matrix cooling module system is arranged above the printing platform and is used for carrying out direct contact type cooling on the surface of the printed workpiece in a mode of contacting with the surface of the printed workpiece.

Preferably, the circulation air cooling system comprises an air supply box, an air return box and a circulation fan; the air supply box is erected on the rack and is positioned above the rear side of the working platform, an air supply outlet of the air supply box faces the working platform, and cold air is blown to the printing surface of a printing workpiece on the working platform through the air supply outlet; the air return box is arranged on the front side of the working platform and opposite to the air supply box, and an air return opening of the air return box faces the working platform; the circulating fan is arranged outside the rack, and the air supply box and the air return box are respectively connected with the circulating fan through pipelines.

Preferably, the multiple efficient cooling gas protection material increase equipment is characterized in that an air supply outlet of the air supply box and an air return inlet of the air return box are both strip-shaped openings; the length direction of the long strip-shaped opening of the air supply outlet is consistent with the length direction of the rear side end of the working platform; the length direction of the long-strip-shaped opening of the air return opening is consistent with the length direction of the front side end of the working platform.

Preferably, according to claim 1, an inclined air supply guide plate is arranged on a wall of the air supply box opposite to the air supply outlet, and the air supply guide plate is inclined towards the working platform; and an inclined return air guide plate is arranged on the box wall opposite to the return air inlet on the return air box, and the return air guide plate is inclined towards the direction of the working platform.

Preferably, the cooling circuit system comprises a cooling circuit arranged inside the working platform, a water tank for containing cooling liquid, and a cooling pipeline for connecting the cooling circuit and the water tank;

the water tank is arranged outside the rack, and the cooling pipeline is connected with the cooling loop.

Preferably, the cooling circuit is provided with cooling liquid channels distributed in a snake-shaped surrounding manner along the inner plane of the working platform; the cooling liquid flow channel is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are respectively arranged on the side wall of the working platform and connected with the cooling pipeline.

Preferably, the dot matrix cooling module system comprises a cooling table movably arranged on the rack and positioned above the working platform, the cooling table is provided with a cooling module used for cooling the upper surface of the workpiece, a cooling channel for circulating cooling liquid is arranged in the cooling module, and the bottom surface of the cooling module, which is in contact with the upper surface of the workpiece, protrudes downwards from the bottom surface of the cooling table;

a plurality of through holes are formed in the cooling table, the cooling modules are movably arranged on the through holes, and cooling channels of the cooling modules are communicated in series through hoses in sequence; the through holes and the cooling modules are distributed on the cooling table in an array manner;

the cooling module comprises a cooling seat and a top cover which is hermetically arranged on the cooling seat, the cooling channel is positioned on the cooling seat, a liquid inlet hole and a liquid outlet hole are formed in the top cover, and the liquid inlet hole and the liquid outlet hole are both communicated with the cooling channel;

the cooling channel is arranged on the cooling seat in an S shape or a U shape.

Preferably, the multiple efficient cooling gas protection material increase equipment further comprises a first spring plate, wherein the fixed end of the first spring plate is fixedly arranged on the cooling table, and the free end of the first spring plate is connected with the top of the cooling module;

the cooling module is provided with a temperature measuring probe for measuring the surface temperature of a workpiece, the cooling seat and the top cover are both provided with communicated temperature measuring holes, the temperature measuring probe is movably arranged on the temperature measuring holes, the top cover is provided with a second spring piece, the fixed end of the second spring piece is fixedly arranged on the top cover, and the free end of the second spring piece is connected with the top of the temperature measuring probe;

the cooling seat is provided with a sealing groove, the sealing groove is provided with an annular sealing ring, and the top cover is fixedly installed on the cooling seat through bolts.

Preferably, the left side and the right side of the rack are provided with lifting assemblies, and the working platform is mounted on the rack through the lifting assemblies;

the lifting assembly comprises a first lifting motor fixedly arranged on the left side of the rack, a first lifting driving shaft connected with an output shaft of the first lifting motor, a first guide shaft matched with the first lifting driving shaft, a second lifting motor fixedly arranged on the right side of the rack, a second lifting driving shaft connected with an output shaft of the second lifting motor, and a second guide shaft matched with the second lifting driving shaft; the left side end of the working platform is installed on the first lifting driving shaft and the first guide shaft, and the right side end of the working platform is installed on the second lifting driving shaft and the second guide shaft.

Preferably, the multiple efficient cooling gas protection material increase equipment is characterized in that the gantry is further provided with a milling electric spindle for automatic cutting.

Preferably, the multiple efficient cooling gas protection material increase equipment further comprises a cover body and air refrigeration constant humidity equipment, wherein a partition plate I is arranged in the cover body, and the cover body is divided into a relatively independent working area and an equipment area; the air refrigeration and constant humidity equipment comprises an indoor unit and an outdoor unit, wherein the indoor unit is used for conveying cold air and discharging humidity;

the printing equipment main body and the indoor unit are placed in a working area of the cover body, the power box and the wire feeder are positioned in an equipment area of the cover body, a welding wire through hole through which a welding wire can pass is formed in the partition plate I, and the wire feeder feeds the welding wire into the printing equipment main body through the welding wire through hole; the partition plate I is also provided with a circuit through hole for communicating a circuit between the printing equipment main body and the power box;

the outdoor unit is positioned outside the cover body, and the cover body is provided with a pipeline through hole for communicating the indoor unit and the outdoor unit through a pipeline.

The utility model has the advantages that:

1. the utility model discloses a promote cooling efficiency, dispose circulation forced air cooling system in printing the region, through erect the air supply case in one side top of work platform and make the supply-air outlet towards the printing face of the last print work piece of work platform to make the cold wind that the air supply case blew off can effectual disturbance workpiece surface air current, take away workpiece surface one deck high temperature air, supply low temperature air, keep heat exchange efficiency.

2. The mode of coiling cooling circuit in work platform inside is adopted, cools off vibration material disk print table to carry out indirect cooling to printing the work piece, solve work platform high temperature's problem. The cooling liquid in the working platform can take away heat conducted by the workpiece to the working platform, so that heat exchange with the workpiece is accelerated, cooling of the workpiece is accelerated, and meanwhile workpiece aging caused by long-term high-temperature operation can be prevented;

3. the cooling module is provided with a plurality of cooling modules with cooling channels in an array manner, the bottoms of the cooling modules are contacted with the upper surface of the workpiece, when the cooling operation of the upper surface of the workpiece is carried out, only circulating cooling liquid needs to be introduced into the cooling channels, so that the cooling modules can exchange heat with the upper surface of the workpiece, the purpose of cooling the upper surface of the workpiece is further realized, the cooling efficiency of the upper surface of the workpiece is improved, the influence on the process temperature of an area with a printing procedure is effectively reduced, the cooling liquid is not contacted with the surface of the workpiece in the cooling process, the metal performance of the workpiece is effectively protected, the product defects are avoided, the array type, namely the dot matrix cooling manner is adopted, the purpose of simultaneously cooling the upper surface of the workpiece with different height differences is realized, the adaptability is improved, and each cooling module is correspondingly provided with a temperature measuring probe, the device can perform multipoint temperature measurement operation on the upper surface of the workpiece, and can realize the purpose of accurate temperature measurement on the workpiece by performing multipoint temperature measurement on the upper surface of the workpiece;

4. the lifting type working platform is adopted, the height of the printing surface of the workpiece is reduced along with the rise of the height of the printing surface of the workpiece, so that the printing surface of the workpiece can be always in the same plane, and the air return box fixedly arranged at the front side end of the working platform is lowered along with the working platform, so that airflow or air surface formed by the air supply box and the air return box always acts on the printing surface of the workpiece and forms convection with the printing surface of the workpiece, and the air cooling speed of the surface of the workpiece is accelerated;

5. the surface quality problem possibly occurs in the printing process, grinding and cutting are needed, the damage to the working condition caused by manual operation of opening the door is reduced, and meanwhile, a set of milling electric spindle is arranged on the portal frame, so that automatic cutting can be realized;

6. through setting up the cover body, the cladding of vibration material disk working area is in a relative inclosed region, and this district disposes air refrigeration constant humidity equipment, stabilizes this region in certain humiture. With welding power supply, the wire feeder among the vibration material disk equipment and promote cooling efficiency's circulating fan and water tank etc. do not need the cooling but the auxiliary assembly that needs frequent operation to install in the equipment region in the cover body, separate with vibration material disk printing work regional refrigeration district, form in the non-refrigeration district, reduce the energy consumption, remove the influence of cooling liquid etc. to printing district humidity in the auxiliary assembly simultaneously from.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a multiple high-efficiency cooling gas protection material adding device according to an embodiment of the present invention;

FIG. 2 is a schematic rear view of the multiple high-efficiency cooling gas-shielded additive manufacturing apparatus shown in FIG. 1;

FIG. 3 is a schematic structural view of a main body of the printing apparatus shown in FIG. 1;

FIG. 4 is a schematic structural view of the work platform shown in FIG. 1;

FIG. 5 is a schematic cross-sectional view of the work platform of FIG. 1;

FIG. 6 is a schematic diagram of the dot matrix cooling module system of FIG. 1;

FIG. 7 is a schematic view of the lattice cooling module system of FIG. 6 from a first perspective;

FIG. 8 is a partial enlarged view of portion A of FIG. 7;

fig. 9 is an exploded view of the cooling module of fig. 6.

FIG. 10 is a schematic structural view of a multiple high-efficiency cooling gas protection material-adding device according to an embodiment of the present invention

The attached drawings are as follows: 1-printing equipment main body, 1.1-frame, 1.2-working platform, 1.3-guide rail, 1.4-printing gun head, 1.5 portal frame, 2-cover body, 2.1-working area, 2.2-equipment area, 3-indoor machine, 4-circulating air cooling system, 4.1-air supply box, 4.2-air return box, 4.3-circulating fan, 5-cooling loop system, 5.1-cooling loop, 5.2-liquid inlet, 5.3-liquid outlet, 5.4-deep hole, 5.5-milling groove, 5.6-seal welding, 5.7-water tank, 6-lifting component, 6.1-first lifting motor, 6.2-first lifting driving shaft, 6.3-first guide shaft, 7-wire feeder, 8-power box, 9-lattice cooling module system, 9.1-cooling platform, 9.2-cooling module, 9.3-cooling channel, 9.4-first spring leaf, 9.5-hose, 9.6-cooling seat, 9.7-top cover, 9.8-liquid inlet hole, 9.9-liquid outlet hole, 9.10-temperature measuring probe, 9.11-temperature measuring hole, 9.12-second spring leaf, 9.13-annular sealing ring, 9.14-leakproof sealing ring, 10-mounting plate, 11-translation cylinder, 12-lifting cylinder, 13-liquid inlet pipe, 14-liquid outlet pipe and 15-bottom plate.

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 efforts belong to the protection scope of the present invention.

Example one

1-2, the partitioned gas protection additive equipment comprises a printing equipment main body 1, and a power supply box 8 and a wire feeder 7 which are connected with the printing equipment main body; the printing equipment main body 1 is provided with a rack 1.1, a working platform 1.2 for printing is arranged on the rack 1.1, guide rails 1.3 are respectively arranged on the left side and the right side of the working platform 1.2, and a portal frame 1.5 provided with a printing gun head 1.4 is erected on the guide rails 1.3. Multiple high-efficiency cooling systems are arranged inside and outside the working platform 1.2, and respectively comprise a circulating air cooling system 4, a cooling loop system 5 and an array cooling module system 9;

the circulating air cooling system 4 is arranged on the working platform 1.2 and is used for improving or maintaining the heat exchange efficiency of the surface of a printing workpiece on the working platform;

a cooling loop 5.1 in the cooling loop system 5 is arranged inside the working platform 1.2 and is used for directly cooling the working platform 1.2 so as to indirectly cool a printing workpiece on the working platform 1.2;

the dot matrix cooling module 9 system is arranged above the printing platform 1.2, and carries out direct contact type cooling on the surface of the printed workpiece in a mode of contacting with the surface of the printed workpiece.

The circulating air cooling system shown in the figures 1-3 comprises an air supply box 4.1, an air return box 4.2 and a circulating fan 4.3; the air supply box 4.1 is erected on the frame 1.1 and is positioned above the rear side of the working platform 1.2, an air supply outlet of the air supply box 4.1 faces the working platform 1.2, and cold air is blown to the printing surface of the printing workpiece on the working platform 1.2 through the air supply outlet; the air return box 4.2 is arranged on the front side of the working platform 1.2, the air return box 4.2 is arranged opposite to the air supply box 4.1, and an air return opening of the air return box 4.2 faces the working platform 1.2; and the height difference is formed between the air supply outlet and the air return inlet, so that the air surface blown to the working platform 1.2 from the air supply outlet forms an inclined angle with the printing surface of the workpiece, and the high-temperature air layer of the printing surface of the workpiece is disturbed. Circulating fan 4.3 sets up in the equipment area 2.2 of cover body 2, supply-air box 4.1 and return-air box 4.2 pass baffle I through the pipeline respectively and are connected with circulating fan 4.3. Circulating fan 4.3 provides continuous cold wind for supply-air box 4.1, and cold wind blows to the printing work piece surface through supply-air outlet of supply-air box 4.1, plays the effect of destroying the near high temperature air bed of the printing work piece surface of stewing, improves the mobility of the near high temperature air of work piece surface to realize the purpose of the radiating efficiency who improves work piece surface. The air return box 4.2 is communicated with the circulating fan 4.3 through a pipeline, the air return box 4.2 plays a role in circulating the air return, the air blowing over the surface of the workpiece is sucked away, the hot air blowing over the working platform 1.2 is taken away, the air temperature around the working platform 1.2 is reduced, the air return box 4.2 is directly arranged on the working platform 1.2, the air supply box 4.1 is positioned above one side of the working platform 1.2, cold air blows over the printing surface of the workpiece, the air suction effect of the air return box 4.2 is realized, the air flows downwards towards the air return box 4.2, the purpose that the cold air blows over the outer surface of the whole workpiece is realized, and the integral heat dissipation effect of the workpiece is improved.

Preferably, the air supply outlet of the air supply box 4.1 and the air return inlet of the air return box 4.2 are both strip-shaped openings; the length direction of the long strip-shaped opening of the air supply outlet is consistent with the length direction of the rear side end of the working platform 1.2; the length direction of the long-strip-shaped opening of the air return opening is consistent with the length direction of the front side end of the working platform 1.2. The air supply range of the air supply box 4.1 can be enlarged, the strip-shaped opening is beneficial to forming an air curtain, and the fluidity of air around the working platform 1.2 is improved. An inclined air supply guide plate is arranged on the wall of the air supply box 4.1 opposite to the air supply outlet, and the air supply guide plate is inclined towards the direction of the working platform 1.2; and an inclined return air guide plate is arranged on the box wall opposite to the return air inlet on the return air box 4.2, and the return air guide plate is inclined towards the direction of the working platform 1.2.

As shown in fig. 4 and 5, in order to further improve the cooling efficiency, a cooling circuit system 5 is further disposed in the cover 2, and the cooling circuit system includes a cooling circuit 5.1 disposed inside the working platform 1.2, a water tank 5.7 for containing cooling liquid, and a cooling pipe connecting the cooling circuit 5.1 and the water tank 5.7; the water tank 5.7 is arranged in the equipment area 2.2 of the cover body 2, and the cooling pipeline penetrates through the partition plate I to be connected with the cooling loop 5.1. The cooling circuit shown in fig. 7 has cooling liquid channels distributed in a serpentine shape around the inner plane of the working platform 1.2; the cooling liquid flow channel is provided with a liquid inlet 5.2 and a liquid outlet 5.3, and the liquid inlet 5.2 and the liquid outlet 5.3 are respectively arranged on the side wall of the working platform 1.2 and connected with the cooling pipeline. The cooling liquid is injected into the cooling loop 5.1 in the working platform 1.2 from the outside of the working platform 1.2 through a cooling liquid pipeline. The cooling loop 5.1 is processed by sequentially drilling N deep holes 5.4 in parallel in the length direction or the width direction of the working platform 1.2 in parallel to serve as cooling liquid flow channels, and milling grooves 5.5 in an end-to-end alternating mode between adjacent cooling liquid flow channels respectively for communicating the adjacent cooling liquid flow channels; the method specifically comprises the following steps: a groove 5.5 is milled at the head end between the first and second coolant flow channels, a groove 5.5 is milled at the tail end between the second and third coolant flow channels, and so on, and the back surface of the groove 5.5 is sealed and welded by 5.6, thereby forming a coolant loop 5.1. Through letting in the coolant liquid to work platform 1.2, work piece conduction heat on work platform 1.2 can be taken away in work platform 1.2's cooling, prevents that the work piece that high temperature brought from ageing, lets work platform 1.2 keep the low temperature simultaneously, can accelerate with the heat transfer between the work piece, further accelerate work piece cooling rate.

Preferably, as shown in fig. 3, the left side and the right side of the frame 1.1 are provided with a lifting assembly, and the working platform 1.2 is installed on the frame 1.1 through the lifting assembly 6, so that the working platform 1.2 is a lifting working platform. The lifting assembly 6 comprises a first lifting motor 6.1 fixedly arranged on the left side of the rack, a first lifting driving shaft 6.2 connected with an output shaft of the first lifting motor 6.1, a first guide shaft 6.3 matched with the first lifting driving shaft 6.2, a second lifting motor correspondingly fixedly arranged on the right side of the rack 1.1, a second lifting driving shaft connected with an output shaft of the second lifting motor, and a second guide shaft matched with the second lifting driving shaft; the left side end of the working platform 1.2 is installed on the first lifting driving shaft and the first guide shaft, and the right side end of the working platform 1.2 is installed on the second lifting driving shaft and the second guide shaft. The working platform 1.2 is acted on the lifting component 6, and is lowered along with the rising of the printing face height of the workpiece, so that the printing face of the workpiece can be always in the same plane, the air return box 4.2 fixedly installed at the front side end of the working platform 1.2 is lowered along with the working platform 1.2, and air flow or air face formed by the air supply box 4.1 to the air return box 4.2 is acted on the printing face of the workpiece all the time and forms convection with the printing face of the workpiece, and the air cooling speed of the surface of the workpiece is accelerated.

As shown in fig. 6-9, in order to further improve the cooling efficiency, a dot matrix cooling module system is further provided, which includes a cooling platform 9.1, a cooling module 9.2 for cooling the upper surface of the workpiece is provided on the cooling platform 9.1, a cooling channel 9.3 for circulating a cooling liquid of an external cooling system is provided inside the cooling module 9.2, the bottom of the cooling module 9.2 contacts with the upper surface of the workpiece, when the cooling operation of the upper surface of the workpiece is performed, only a circulating cooling liquid needs to be introduced into the cooling channel 9.3, so that the cooling module 9.2 can perform heat exchange with the upper surface of the workpiece, to achieve the purpose of cooling the upper surface of the workpiece, and improve the cooling efficiency of the upper surface of the workpiece, the bottom surface of the cooling module 9.2 contacting with the upper surface of the workpiece protrudes from the bottom surface of the cooling platform 9.1, and because the bottom surface of the cooling module 9.2 protrudes downward from the bottom surface of the cooling platform 9.1, when the cooling platform 1 is moved to the upper surface of the workpiece, can make cooling module 9.2 fully contact with the upper surface of work piece, ensure to realize fully contacting in order to carry out high-efficient refrigerated purpose, carry out contact cooling to the work piece upper surface that the temperature is the highest through cooling module, make the temperature of work piece upper surface just can accomplish cooling operation before transmitting the work piece other positions, play and effectively reduce the influence to the process temperature in the region of having accomplished the printing process, when realizing the purpose of cooling work piece upper surface, still guaranteed the manufacturability of work piece printing in-process, and in this contact's cooling process, the coolant liquid is direct and work piece upper surface direct contact, still play the effect of the metallic property of effective protection work piece, avoid producing product defect.

Specifically, a plurality of through holes are formed in the cooling table 9.1, and the cooling modules 9.2 are movably disposed on the through holes, wherein the through holes penetrate through the upper surface and the lower surface of the cooling table, and are used for installing and placing the cooling modules 9.2, so as to achieve the purpose that the cooling modules 9.2 can contact the upper surface of the workpiece, and because the upper surface of the workpiece is relatively rough and uneven in the process of printing the workpiece in an additive manner, in order to enable the upper surface of the workpiece and the cooling modules 9.2 to have as many contact surfaces as possible, so as to achieve the purpose of further improving the cooling efficiency, in the embodiment, a plurality of through holes for installing the cooling modules 2 are designed on the cooling table 1, and by uniformly distributing a plurality of cooling modules 9.2 at different positions of the cooling table 9.1, when the workpiece needs to be cooled, the cooling table 9.1 is moved to the upper surface of the workpiece, and because each cooling module 9.2 is movably disposed on the corresponding through hole, and the ascending or descending movement of each cooling module 9.2 is not interfered by other cooling modules 9.2, so when the upper surface of the workpiece with relative fall at the height position is encountered, the corresponding cooling module 9.2 can contact with the corresponding upper surface of the workpiece under the action of self gravity or other external pushing force to carry out contact cooling operation, the purpose of cooling the upper surfaces of the workpieces with different height differences at the same time is realized, and the adaptability is improved.

Preferably, the cooling device further comprises a first spring plate 9.4, the fixed end of the first spring plate 9.4 is fixedly arranged on the cooling table 9.1, the free end of the first spring plate 9.4 is connected with the top of the cooling module 9.2, specifically, the free end of the first spring 9.4 is fixedly connected with the top of the cooling module 9.2, so as to achieve the purpose of mounting the cooling module 9.2 on the through hole, and further, because the first spring 9.4 has elasticity, the purpose of movably mounting the cooling module 9.2 on the through hole is achieved, and correspondingly, when the cooling device is in contact cooling with the upper surface of the workpiece, the first spring 9.4 also achieves the effect of providing downward pressing force for the cooling module 9.2, so that the cooling module 9.2 can be in full contact with the upper surface of the workpiece.

Furthermore, the cooling channels 9.3 of the plurality of cooling modules 9.2 are communicated in series through the hoses 9.5, namely, the cooling modules 9.2 are connected in series through the hoses 9.5, so that the purpose of connecting all the cooling modules 9.2 in series into a complete cooling system can be realized, and the purpose of circulating cooling can be realized only by respectively communicating the two cooling modules 2 which are positioned at the head and the tail in the cooling system formed by connecting in series with the liquid inlet pipe 13 and the liquid outlet pipe 14 of the external cooling system, so that high-temperature cooling liquid can be rapidly output to the cooling channels 9.3, low-temperature cooling liquid can be timely input, and the heat exchange efficiency is improved.

Preferably, the plurality of through holes and the cooling modules 9.2 are distributed on the cooling table 9.1 in an array, so that the purpose of uniformly cooling the upper surface of the workpiece can be achieved.

Specifically, the cooling module 9.2 includes a cooling base 9.6 and a top cover 9.7 hermetically mounted on the cooling base 9.6, the cooling channel 9.3 is located on the cooling base 9.6, the bottom surface of the cooling base 9.6 is used for contacting with the upper surface of the workpiece, the cooling channel 9.3 is disposed on the cooling base 9.6, which can improve heat exchange efficiency and cooling effect, the top cover 9.7 is provided with a liquid inlet hole 9.8 and a liquid outlet hole 9.9, the liquid inlet hole 9.8 and the liquid outlet hole 9.9 are both communicated with the cooling channel 9.3, the liquid inlet hole 9.8 and the liquid outlet hole 9.9 are used for mounting and connecting a hose 9.5, in a specific serial connection mode, in this embodiment, the liquid outlet hole 9.9.9 of any one cooling module 9.2 is connected with the liquid inlet hole 9.8 of an adjacent cooling module 9.2 through the hose 9.5, and the purpose of connecting all the cooling modules 9.2 in series can be achieved.

Preferably, the cooling channel 9.3 is arranged in an S-shape or U-shape on the cooling seat 9.6, which can expand the contact area during heat exchange and improve the heat exchange efficiency.

As a preferable scheme of this embodiment, the cooling module 9.2 is provided with a temperature measuring probe 9.10 for measuring the surface temperature of the workpiece, the cooling seat 9.6 and the top cover 9.7 are both provided with temperature measuring holes 9.11 communicated with each other, when the top cover 9.7 is installed on the cooling seat 9.6, the temperature measuring holes 9.11 on the top cover 9.7 are correspondingly communicated with the temperature measuring holes 9.11 on the cooling seat 9.6, the temperature measuring probe 9.10 is movably arranged on the temperature measuring holes 9.11, the top cover 9.7 is provided with a second spring leaf 9.12, the fixed end of the second spring leaf 9.12 is fixedly arranged on the top cover 9.7, the free end of the second spring leaf 9.12 is connected with the top of the temperature measuring probe 9.10, specifically, the free end of the second spring leaf 9.12 is fixedly connected with the top of the temperature measuring probe 9.10, so as to achieve the purpose of movably installing the temperature measuring probe 9.10 on the temperature measuring holes 9.11, furthermore, the bottom of the temperature measuring probe 9.10 is downward on the bottom of the cooling seat 9.6, so that when the cooling module is in contact with the surface of the workpiece, and because the second spring has elasticity, therefore the purpose that temperature probe 9.10 can realize fully contacting with the work piece surface, and then realize the purpose of accurate temperature measurement, and install a plurality of cooling module 9.2 with the mode that even array was laid on cooling platform 9.1, and all corresponding temperature probe 9.10 of installing on every cooling module 9.2, so, just can play the effect of carrying out the operation of multiple spot temperature measurement to the work piece upper surface, carry out the multiple spot temperature measurement to the upper surface of work piece, just can realize the purpose to the accurate temperature measurement of work piece.

Preferably, a sealing groove is formed in the cooling seat 9.6, an annular sealing ring 9.13 is arranged on the sealing groove, the cooling channel 9.3 is arranged on the cooling seat 9.6 located on the inner side of the annular sealing ring 9.13, and the top cover 9.7 is fixedly installed on the cooling seat 9.6 through bolts so as to achieve the purpose of sealing and installing between the top cover 9.7 and the cooling seat 9.6.

In addition, the temperature measuring hole 11 is provided with a leakage-proof sealing ring 9.14, and the leakage-proof sealing ring 9.14 can play a role in preventing cooling liquid from leaking from the cooling channel 9.3 to the temperature measuring hole 9.11.

Furthermore, because no cooling operation is needed when the workpiece is subjected to additive surfacing and printed, and the surface of the workpiece needs to be cooled after one or more printing layers are completed, in order to achieve the purpose that the dot matrix cooling module system can be adapted to additive printing equipment, in this embodiment, the dot matrix cooling module system further includes a rack 1.1 erected on one side above the additive printing workbench, wherein the additive printing workbench is a working base platform for additive surfacing of the workpiece in the additive printing equipment, a cooling platform 9.1 is installed on the rack 1.1 through an installation plate 10, a guide rail 1.3 is arranged on the rack 1.1, the installation plate 10 is in sliding connection with the guide rail 1.3, wherein in a specific mode of sliding connection, a sliding block matched with the guide rail 1.3 is installed on the installation plate 10, a translation cylinder 11 is arranged between the installation plate 10 and the rack 1.1, wherein a cylinder body of the translation cylinder 11 is installed on the installation plate 10, the piston rod of translation cylinder 11 is connected with frame 1.1 to realize translation cooling platform 9.1's purpose, installs lift cylinder 12 between mounting panel 10 and the cooling platform 9.1, and wherein, the cylinder body of lift cylinder 12 is installed on the bottom plate 15 of mounting panel 10 bottom, and the piston rod of lift cylinder 12 is connected with cooling platform 9.1, in order to realize lift cooling platform 9.1's purpose.

In the embodiment, the circulating air cooling system 4, the cooling loop system 5 and the dot matrix cooling module system 9 are arranged, so that multiple high-efficiency cooling effects on the workpiece are realized.

Example two

As shown in fig. 10, unlike the first embodiment, in order to ensure product quality and maintain a relatively stable temperature level during printing, the printing apparatus main body 1 is additionally provided with a cover body 2 and an air cooling and humidity stabilizing apparatus. The air refrigeration and constant humidity equipment comprises an indoor unit 3 for conveying cold air and discharging humidity and an outdoor unit for refrigeration; as shown in fig. 10, a partition plate i is arranged in the cover body 2 to divide the cover body 2 into a working area 2.1 and an equipment area 2.2 which are relatively independent; the printing equipment main body 1 and the indoor unit 3 are placed in a working area 2.1 of the cover body 2, the power box and the wire feeder 7 are positioned in an equipment area 2.2 of the cover body 2, a welding wire through hole through which a welding wire can pass is formed in the partition plate I, and the wire feeder feeds the welding wire into the printing equipment main body 1 through the welding wire through hole; the partition plate I is also provided with a line through hole for communicating a line between the printing equipment main body 1 and the power box; the outdoor unit is positioned on the outer side of the cover body 2, and the cover body 2 is provided with a pipeline through hole for communicating the indoor unit 3 with the outdoor unit through a pipeline. Through the subregion setting of the cover body 2, will need refrigerated printing apparatus main part 1 and indoor set 3 to place together, provide a more stable cooling environment for printing apparatus main part 1 in workspace 2.1, will produce the heat simultaneously and need not the equipment of cooling and place in the equipment district, for example send a machine, power supply box etc. not only guarantee the stability of cooling environment, still further energy saving and consumption reduction.

Preferably, the equipment area 2.2 is divided into a first equipment area, a second equipment area and a third equipment area which are relatively independent by a partition plate ii, the power box 8 is located in the first equipment area, the wire feeder 7 is located in the second equipment area, and the water tank 5.7 is located in the third equipment area. And the dry and wet equipment is partitioned again in the equipment area 2.2, so that the service life of the equipment is prolonged.

Preferably, the gantry 1.5 is further provided with a milling electric spindle for automatic cutting. The surface quality problem probably appears in the printing process and needs the cutting of polishing, for reducing the cover body 2 and opening the destruction of manual operation to the printing operating mode, dispose one set of electric main shaft that mills at portal frame 1.5, can realize automatic cutting.

This embodiment is equipped with cover body 2 through the outside to printing apparatus main part 1 additional, has carried out the function subregion to provide a steady state operating mode (temperature, humidity) for gas shield vibration material disk equipment, reduce behind the vibration material disk ambient temperature, further improved work piece cooling efficiency, stable operating mode provides the basis for control quality and solidification technology.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second", "element i", "element ii" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying a number of technical features indicated. Thus, features defined as "first", "second", "element i", "element ii" may explicitly or implicitly include one or more of such features. In the description of the present invention, "plurality" or "a plurality" means two or more unless specifically limited otherwise.

The above description is only a 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. A multiple high-efficiency cooling gas protection material increase device is provided with a printing device main body, wherein the printing device main body is provided with a rack, and a printing working platform is arranged on the rack;

the dot matrix cooling module system is arranged above the working platform and is used for carrying out direct contact type cooling on the surface of the printed workpiece in a mode of contacting with the surface of the printed workpiece.

2. The multiple high-efficiency cooling gas-shielded material additive apparatus according to claim 1, wherein the circulating air cooling system comprises an air supply box, an air return box and a circulating fan; the air supply box is erected on the rack and is positioned above the rear side of the working platform, an air supply outlet of the air supply box faces the working platform, and cold air is blown to the printing surface of a printing workpiece on the working platform through the air supply outlet; the air return box is arranged on the front side of the working platform and opposite to the air supply box, and an air return opening of the air return box faces the working platform; the circulating fan is arranged outside the rack, and the air supply box and the air return box are respectively connected with the circulating fan through pipelines.

3. The multiple efficient cooling gas protection additive manufacturing device according to claim 2, wherein both the supply port of the supply box and the return port of the return box are elongated openings; the length direction of the long strip-shaped opening of the air supply outlet is consistent with the length direction of the rear side end of the working platform; the length direction of the long-strip-shaped opening of the air return opening is consistent with the length direction of the front side end of the working platform.

4. The multiple high-efficiency cooling gas-shielded material additive apparatus according to claim 1, wherein the cooling circuit system comprises a cooling circuit disposed inside the work platform, a water tank for containing a cooling liquid, and a cooling pipe connecting the cooling circuit and the water tank; the water tank is arranged outside the rack, and the cooling pipeline is connected with the cooling loop.

5. The multiple high-efficiency cooling gas-shielded material additive apparatus of claim 4, wherein the cooling circuit has cooling fluid channels distributed in a serpentine pattern around the inner plane of the work platform; the cooling liquid flow channel is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are respectively arranged on the side wall of the working platform and connected with the cooling pipeline.

6. The multiple efficient cooling gas-shielded material additive apparatus according to claim 1, wherein the lattice cooling module system comprises a cooling platform movably disposed on the frame and above the working platform, the cooling platform is provided with a cooling module for cooling the upper surface of the printed workpiece, the cooling module is provided with a cooling channel for flowing a cooling fluid therein, and a bottom surface of the cooling module contacting with the upper surface of the workpiece protrudes downward from a bottom surface of the cooling platform.

7. The multiple efficient cooling gas-shielded material increase equipment according to claim 6, wherein a plurality of through holes are formed in the cooling table, the cooling modules are movably arranged on the through holes, and cooling channels of the cooling modules are sequentially communicated in series through hoses; the through holes and the cooling modules are distributed on the cooling table in an array manner;

the cooling channel is arranged on the cooling seat in an S shape or a U shape.

8. The multiple high-efficiency cooling gas-shielded material additive apparatus according to claim 7, further comprising a first spring plate, a fixed end of which is fixedly disposed on the cooling stage, and a free end of which is connected to a top of the cooling module;

the cooling module is provided with a temperature measuring probe for measuring the surface temperature of a workpiece, the cooling seat and the top cover are respectively provided with a temperature measuring hole communicated with each other, the temperature measuring probe is movably arranged on the temperature measuring hole, the top cover is provided with a second spring piece, the fixed end of the second spring piece is fixedly arranged on the top cover, and the free end of the second spring piece is connected with the top of the temperature measuring probe.

9. The multiple efficient cooling gas protection additive manufacturing device according to claim 1, wherein a lifting assembly is provided on the left and right sides of the machine frame, and the working platform is mounted on the machine frame through the lifting assembly;

10. The multiple high-efficiency cooling gas-shielded material additive apparatus of claim 1, further comprising a hood and an air cooling and humidity-maintaining apparatus;

a partition plate I is arranged in the cover body, and the cover body is divided into a relatively independent working area and an equipment area; the air refrigeration and constant humidity equipment comprises an indoor unit and an outdoor unit, wherein the indoor unit is used for conveying cold air and discharging humidity;

the material adding equipment main body and the indoor unit are placed in a working area of the cover body, a power box and a wire feeder which are connected with the printing equipment main body are positioned in an equipment area of the cover body, a welding wire through hole through which a welding wire can pass is formed in the partition plate I, and the wire feeder feeds the welding wire into the printing equipment main body through the welding wire through hole; the partition plate I is also provided with a circuit through hole for communicating a circuit between the printing equipment main body and the power box;