CN217930289U

CN217930289U - Optical system debugging plane debugging device

Info

Publication number: CN217930289U
Application number: CN202222356862.0U
Authority: CN
Inventors: 张志勇; 刘鑫炎; 潘良明; 陈禹含
Original assignee: Hunan Farsoon High Tech Co Ltd
Current assignee: Hunan Farsoon High Tech Co Ltd
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2022-11-29
Anticipated expiration: 2032-09-05

Abstract

The application provides an optical system debugging plane debugging device, relate to selectivity laser sintering field, be used for cooperating with the scraper mount pad, including debugging frock and leveling subassembly, the debugging frock has reference surface and the first installation face that parallel interval set up, the leveling subassembly includes mounting bracket and a plurality of percentage table, a plurality of percentage tables all with mounting bracket fixed connection, the mounting bracket has the second installation face, the laminating of second installation face and first installation face, the measuring head of a plurality of percentage tables all with the reference surface butt, and the percentage table that the calibration corresponds when the measuring head of percentage table and reference surface butt makes its reading return to zero. The debugging device can improve the efficiency when in use, has high leveling precision and good consistency, and is not easy to damage the scraper.

Description

Optical system debugging plane debugging device

Technical Field

The utility model relates to a selectivity laser sintering field particularly, relates to an optical system debugs plane debugging device.

Background

The basic process of the selective laser sintering process is as follows: the powder feeding device sends a certain amount of powder to a working table, the powder spreading scraper spreads a layer of powder material on the upper surface of the sintering plate, and the vibrating mirror system controls the laser to scan the powder layer of the solid part according to the section outline of the layer, so that the powder is melted and is bonded with the sintering plate; after one layer of cross section is sintered, the working table is lowered by one layer, the powder spreading scraper is used for spreading a layer of uniform and compact powder on the sintered plane, the scanning sintering of the new layer of cross section is carried out, and the scanning and stacking of a plurality of layers are carried out until the whole prototype manufacturing is completed. When the 3d printing equipment is used for selective laser sintering, in order to ensure the printing quality and precision, an optical system of the 3d printing equipment needs to be debugged before printing, and the sintering plate needs to be leveled and an accurate optical system debugging plane needs to be found on the premise of debugging.

The inventor researches and discovers that the existing optical system debugging has the following defects:

adopting a clearance leveling base plate between a clearance gauge checking scraper and a sintering plate to find an optical debugging plane; has the defects of long time consumption, low precision, poor consistency, easy damage to the scraper and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an optical system debugging plane debugging device, it can raise the efficiency, and the leveling precision is high, not fragile scraper.

The embodiment of the utility model is realized like this:

the utility model provides an optical system debugs plane debugging device for cooperate with the scraper mount pad, include:

debugging frock and leveling subassembly, the debugging frock has reference surface and the first installation face that parallel interval set up, the leveling subassembly includes mounting bracket and a plurality of percentage table, a plurality of percentage tables all with mounting bracket fixed connection, the mounting bracket has the second installation face, the second installation face with the laminating of first installation face, the measuring head of a plurality of percentage tables all with the reference surface butt, just be in the measuring head of percentage table with calibration corresponds during the reference surface butt the percentage table makes its reading return to zero.

In an alternative embodiment, the distance between the reference surface and the first mounting surface is H0, the scraper mounting seat has opposite top and bottom surfaces, the top surface is used for positioning the scraper component, and the bottom surface is used for fitting with the bottom wall of the sintering chamber; the height between the top surface and the bottom surface is H1, wherein H0= H1.

In an optional implementation mode, the debugging tool comprises a base and a supporting seat, the supporting seat is connected with the base, the first installation face is arranged on the supporting seat and located on one side, far away from the base, of the supporting seat, and the reference face is arranged on the base and located on one side, close to the supporting seat, of the base.

In an alternative embodiment, the support base includes a snap groove for snap engagement with the doctor assembly.

In an alternative embodiment, the number of the supporting seats is two, the two supporting seats are arranged at intervals, and a receiving space for receiving the scraper assembly is formed between the two supporting seats.

In an alternative embodiment, the support base is removably connected to the base.

In an alternative embodiment, the base is provided with two positioning grooves for positioning the scraper seat of the scraper assembly.

In an alternative embodiment, the mounting bracket is removably connected to the support base.

In an alternative embodiment, a sliding groove is arranged on the supporting seat, the sliding groove has a first groove side wall and a second groove side wall which are arranged at intervals in a direction perpendicular to the reference surface, the first groove side wall is located on one side of the second groove side wall close to the reference surface, the first groove side wall is provided as the first mounting surface, and an elastic member is arranged on the second groove side wall; the mounting bracket joint in the spout, the elastic component with the mounting bracket butt, so that the mounting bracket has and is close to the trend of reference surface.

In an optional implementation manner, the mounting frame includes a body and a fixture block connected to each other, the fixture block has a suspended side, the fixture block and the body together define a clamping space, the measuring rod of the dial indicator penetrates through the clamping space, the fixture block and the body are connected by a screw, and the size of the clamping space can be adjusted by screwing the screw.

The embodiment of the utility model provides a beneficial effect is:

in summary, the optical system debugging plane debugging device provided by this embodiment, during use, cooperates leveling subassembly and debugging frock, makes the second installation face of mounting bracket and the first installation face laminating of debugging frock, and the measuring head of every percentage table on the mounting bracket all laminates with the reference surface of debugging frock, then, calibrates every table branch table, makes the reading of every percentage table zero, so, can regard the percentage table as the planar regulation benchmark of optical system debugging. Then, the mounting frame is separated from the debugging tool, the mounting frame is assembled on a scraper mounting seat arranged in the sintering cavity, a second mounting surface of the mounting frame is attached to the top surface of the scraper mounting seat, and the mounting frame is fixed on the scraper mounting seat. And then, adjusting the position of the sintering plate, enabling the top surface of the sintering plate to be in contact with a dial indicator, driving the leveling component to move relative to the sintering plate by utilizing the scraper mounting seat, and adjusting the levelness of the sintering plate through the dial indicator, namely, in the process of moving the dial indicator, adjusting the position of the sintering plate to enable the reading of the dial indicator to be zero. In the position adjustment process of the sintering plate, the scraper component does not need to be used for sliding relative to the sintering plate, and the scraper component is not easy to damage. Moreover, after the leveling component returns to zero, the leveling component can be repeatedly used, the use is flexible, the error is small, and the consistency of the adjusted debugging plane of the optical system is high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an optical system debugging plane debugging device according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a leveling assembly according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a debugging tool according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a doctor assembly according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of the scraper assembly and the debugging tool according to the embodiment of the present invention;

FIG. 6 is a schematic view of a partial structure of the printing apparatus;

fig. 7 is an application structure diagram of the debugging apparatus according to an embodiment of the present invention.

An icon:

001-scraper mounting base; 011-fixed holes; 002-sintering the plate; 003-the doctor assembly; 031-scraper seat; 032-scraper body; 033-mating surface; 034-scraping surface; 004-sintering chamber; 100-debugging a tool; 110-a reference plane; 120-a first mounting surface; 130-a base; 131-a positioning groove; 140-a support base; 141-a first plate portion; 142-a second plate portion; 143-a third plate portion; 144-a snap groove; 200-a leveling assembly; 210-a mounting frame; 211-a second mounting surface; 212-a body; 213-a fixture block; 220-percentage table.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

At present, before 3d printing equipment works, system leveling work is required, in the prior art, an optical debugging plane is found through a clearance leveling base plate between a feeler gauge inspection scraper and a sintering plate 002, the defects of long time consumption, low precision, poor consistency, easiness in damage to the scraper and the like exist, the found optical debugging plane is difficult to be on the same plane with a scraper surface 034 (a sintering surface and a powder bed surface) in the actual sintering process, and therefore printing quality is influenced.

In view of the above, with reference to fig. 1 to 7, designers have designed an optical system debugging plane debugging apparatus, which can simplify operations, improve efficiency, and has high precision and consistency, and is not easy to damage a scraper.

Please refer to fig. 6, it should be noted that the debugging device is used in cooperation with the scraper mounting base 001, and can be driven by the scraper mounting base 001 to move, so as to level the top surface of the sintering plate 002, and the leveled top surface of the sintering plate 002 is the optical system debugging plane. Specifically, the scraper mounting seat 001 is mounted in the sintering cavity 004 and driven by the lead screw transmission structure to reciprocate along the scraping direction of the scraper assembly 003. The scraper mounting seat 001 is attached to the bottom wall of the sintering cavity 004 and can slide along the bottom wall. The blade mount 001 has a top surface and a bottom surface disposed in parallel with respect to each other, with a distance H1 between the top and bottom surfaces. When the top surface of the sintering plate 002 is leveled, the top surface of the sintering plate 002, the bottom surface of the scraper mounting seat 001 and the bottom wall of the sintering cavity 004 are located in the same plane. And, be provided with a plurality of fixed orificess 011 on scraper mount pad 001, scraper subassembly 003 is installed on scraper mount pad 001, can utilize the screw to pass behind the scraper subassembly 003 and the spiro union of fixed orificess 011, accomplishes the fixed of scraper subassembly 003 and scraper mount pad 001. It should be understood that the scraper mounting seat 001 is provided with a strip-shaped avoiding hole, and two rows of fixing holes 011 are arranged on two sides of the avoiding hole in the width direction.

Referring to fig. 1 to fig. 3, in this embodiment, the optical system debugging plane debugging and debugging device includes a debugging tool 100 and a leveling component 200, the debugging tool 100 has a reference surface 110 and a first mounting surface 120 that are arranged in parallel at intervals, the leveling component includes a mounting frame 210 and a plurality of dial indicators 220, the plurality of dial indicators 220 are all fixedly connected with the mounting frame 210, the mounting frame 210 has a second mounting surface 211, the second mounting surface 211 is attached to the first mounting surface 120, measuring heads of the plurality of dial indicators 220 are all abutted to the reference surface 110, and when the measuring heads of the dial indicators 220 are abutted to the reference surface 110, the corresponding dial indicators 220 are calibrated to return to zero.

The using method of the optical system debugging plane debugging device provided by the embodiment includes, for example:

during the use, cooperate leveling subassembly 200 with debugging frock 100, make the second installation face 211 of mounting bracket 210 and the first installation face 120 laminating of debugging frock 100, the measuring head of every percentage table 220 on mounting bracket 210 all laminates with the datum plane 110 of debugging frock 100, then, calibrate every table branch table, makes the reading of every percentage table 220 be zero, so, can regard percentage table 220 as the regulation benchmark of optical system debugging plane. Then, the mounting frame 210 is separated from the commissioning tool 100, the mounting frame 210 is assembled on the scraper mounting seat 001 arranged in the sintering cavity 004, the second mounting surface 211 of the mounting frame 210 is attached to the top surface of the scraper mounting seat 001, and the mounting frame 210 is fixed on the scraper mounting seat 001. Then, the position of the sintered plate 002 is adjusted, the top surface of the sintered plate 002 is in contact with the dial indicator 220, the scraper mounting seat 001 is utilized to drive the leveling component 200 to move relative to the sintered plate 002, the levelness of the sintered plate 002 is adjusted through the dial indicator 220, namely in the process of moving the dial indicator 220, the reading of the dial indicator 220 is zero by adjusting the position of the sintered plate 002, and thus, after the adjustment of the top surface of the sintered plate 002 is completed, the top surface of the sintered plate 002 is an optical system debugging plane. In the process of adjusting the position of the sintered plate 002, the scraper component 003 does not need to slide relative to the sintered plate 002, and the scraper component 003 is not easy to damage. After the leveling component 200 is reset to zero, the leveling component can be repeatedly used, the use is flexible, the error is small, and the consistency of the adjusted optical system debugging plane is high.

Referring to fig. 3, in the present embodiment, optionally, the debugging tool 100 includes a rectangular base 130 and two supporting seats 140, each supporting seat 140 is configured as a "z" shape, the two supporting seats 140 are fixedly connected to the base 130 and are arranged at intervals in the length direction of the base 130, and a receiving space for positioning the scraper assembly 003 is formed between the two supporting seats 140 for adjusting the scraper assembly 003. The base 130 is provided with a reference surface 110, and the reference surface 110 is located on one side of the base 130 close to the supporting seat 140. Meanwhile, two positioning grooves 131 are formed in the reference surface 110, each positioning groove 131 is a rectangular through groove, the two positioning grooves 131 are arranged in the length direction of the base 130 at intervals, and each positioning groove 131 extends in the width direction of the base 130. And, two rows of threaded holes are provided on the base 130. The two supporting seats 140 correspond to the two rows of threaded holes respectively, and a screw can be inserted into each supporting seat 140 and screwed with the corresponding threaded hole, so that the supporting seat 140 and the base 130 can be detachably connected. Meanwhile, the two support bases 140 are configured to be the same, each support base 140 includes a first plate portion 141, a second plate portion 142, and a third plate portion 143 in sequence, the first plate portion 141 and the third plate portion 143 are located on two opposite sides of the second plate portion 142, the first plate portion 141 and the third plate portion 143 are parallel and perpendicular to the second plate portion 142, and the first plate portion 141 is connected to the base 130. The third plate portion 143 is provided with a plurality of clamping grooves 144, each clamping groove 144 is located on one side of the third plate portion 143 away from the second plate portion 142, and the clamping grooves 144 may be rectangular grooves. The side surface of the third plate portion 143 facing away from the base 130 is the first mounting surface 120, and optionally, the first mounting surface 120 is further provided with a positioning hole for passing a screw, and the screw may penetrate through the third plate portion 143 and fix the third plate portion 143 on the first mounting surface 120.

In other embodiments, optionally, a sliding groove (not shown) is disposed on a side of the third plate portion 143 away from the second plate portion 142, the sliding groove has a first groove sidewall and a second groove sidewall that are arranged in parallel at an interval in a direction perpendicular to the first mounting surface 120, the first groove sidewall is located on a side of the second groove sidewall close to the reference surface 110, that is, the first groove sidewall is located on a side of the second groove sidewall away from the first mounting surface 120, the first groove sidewall is configured as the first mounting surface 120, an elastic member (not shown) is disposed on the second groove sidewall, the elastic member may be a spring, an elastic sheet, or a rubber member, and an abutting plate (not shown) is disposed at an end of the elastic member close to the first groove sidewall. The mounting bracket 210 is clamped in the sliding groove, the abutting plate and one side of the mounting bracket 210, which is far away from the side wall of the first groove, are abutted, and the elastic piece enables the mounting bracket 210 to have a trend close to the reference surface 110. That is, when the leveling unit 200 is adjusted by the commissioning tool 100, the leveling unit 200 can always abut against the first mounting surface 120, and thus an error can be reduced.

Referring to fig. 3 to fig. 5, optionally, the distance between the reference surface 110 and the first mounting surface 120 is H0, where H0= H1. During the use, debugging frock 100 can also be used for adjusting scraper subassembly 003, and scraper subassembly 003 is including scraping blade holder 031 and scraper body 032, and scraper body 032 is installed and is being scraped on blade holder 031 and can stretch out and draw back for scraping blade holder 031 to adjust the length of scraper body 032. For example, can be through setting up the guide way on scraper seat 031 to set up locking screw on scraper seat 031, locking screw can stretch into in the guide way, scraper body 032 slides on the depth direction of guide way with the guide way, thereby adjust the position of scraper body 032, after scraper body 032 adjusts, locking screw screws, locking screw tip butt is on the outer peripheral face of scraper body 032, realize the fixed of scraper body 032 and scraper seat 031. It should be appreciated that the scraper seat 031 has a mating surface 033, and when the scraper assembly 003 is mated with the commissioning fixture 100, the scraper assembly 003 is embedded in the snap-in groove 144 and the mating surface 033 is attached to the first mounting surface 120, and then the scraper body 032 is commissioned so that the scraper surface 034 of the scraper seat 031 away from the scraper body 032 is in contact with the reference surface 110, and thus, the distance between the mating surface 033 and the scraper surface 034 of the scraper body 032 is H2, and H0= H1= H2. So design, after scraper subassembly 003 and scraper mount pad 001 assemble, fitting surface 033 and the laminating of the top surface of scraper mount pad 001, the scraper face 034 of scraper body 032 just lies in the plane of the bottom surface place of scraper mount pad 001, so, after the top surface leveling of sintered plate 002, the top surface of sintered plate 002 is the coplanar with the scraper face 034 of scraper body 032, thereby need not reuse scraper subassembly 003 to confirm the relation of scraping knife face 034 and the top surface of sintered plate 002, the cost is saved, also difficult damage scraper subassembly 003.

Referring to fig. 2, in the present embodiment, optionally, the mounting bracket 210 includes a body 212 and a fixture block 213 connected to each other, the fixture block 213 has a suspended side, the fixture block 213 and the body 212 together define a clamping space, the measuring rod of the dial indicator 220 is inserted into the clamping space, the fixture block 213 and the body 212 are connected by screws, and the size of the clamping space can be adjusted by screwing the screws. That is, during screwing, the latch 213 can be brought close to the body 212, thereby reducing the size of the clamping space and clamping the measuring rod. Meanwhile, the screw can be rotated reversely, the fixture block 213 is far away from the body 212, the clamping space is increased, the measuring rod is loosened, and the dial indicator 220 can be taken out.

In this embodiment, optionally, the number of the dial indicators 220 may be two, three, or five, and the like, and the design may be as required.

In the leveling and debugging device for the optical system provided by this embodiment, the debugging tool 100 is first used to zero the dial indicator 220, then the leveling component 200 is detached from the debugging tool 100, the leveling component 200 is assembled to the top surface of the scraper mounting seat 001, and the dial indicator 220 is used as a reference to adjust the levelness of the top surface of the sintering plate 002, that is, to adjust the debugging plane of the optical system. Moreover, the scraper component 003 can be installed on the debugging tool 100, and the height of the scraper component 003 is adjusted by the debugging tool 100, so that when the scraper component 003 is assembled on the scraper mounting seat 001, the distance between the top surfaces of the scraper mounting seat 001 and the scraper surface 034 is equal to the distance between the top surface and the bottom surface of the scraper mounting seat 001, and thus, after the top surface of the sintered plate 002 is leveled, the top surfaces of the scraper surface 034 and the sintered plate 002 are located in the same plane.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement 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 optical system debugs plane debugging device for with scraper mount pad cooperation, its characterized in that includes:

2. The optical system commissioning device of claim 1, wherein:

the distance between the reference surface and the first mounting surface is H0, the scraper mounting seat is provided with a top surface and a bottom surface which are opposite, the top surface is used for positioning the scraper assembly, and the bottom surface is used for being attached to the bottom wall of the sintering cavity; the height between the top surface and the bottom surface is H1, wherein H0= H1.

3. The optical system commissioning device of claim 1, wherein:

the debugging tool comprises a base and a supporting seat, the supporting seat is connected with the base, the first installation face is arranged on the supporting seat and located on one side, far away from the base, of the supporting seat, and the reference face is arranged on the base and located on the base and close to one side of the supporting seat.

4. The optical system debug plane apparatus according to claim 3, wherein:

the supporting seat comprises a clamping groove used for being clamped with the scraper component.

5. The optical system commissioning device of claim 4, wherein:

the supporting seat is provided with two, two the supporting seat interval is arranged, two form the accommodation space that is used for holding the scraper subassembly between the supporting seat.

6. The optical system debugging plane apparatus according to claim 4, wherein:

the supporting seat is detachably connected with the base.

7. The optical system commissioning device of claim 4, wherein:

and the base is provided with two positioning grooves for positioning the scraper seat of the scraper component.

8. The optical system commissioning device of claim 4, wherein:

the mounting bracket is detachably connected with the supporting seat.

9. The optical system commissioning device of claim 4, wherein:

the supporting seat is provided with a sliding groove, the sliding groove is provided with a first groove side wall and a second groove side wall which are arranged at intervals in the direction perpendicular to the reference surface, the first groove side wall is positioned on one side, close to the reference surface, of the second groove side wall, the first groove side wall is arranged as a first mounting surface, and an elastic piece is arranged on the second groove side wall; the mounting bracket joint in the spout, the elastic component with the mounting bracket butt, so that the mounting bracket has and is close to the trend of reference surface.

10. The optical system commissioning device of claim 1, wherein:

the mounting bracket comprises a body and a fixture block which are connected, the fixture block is provided with a suspension side, a clamping space is defined by the fixture block and the body together, a measuring rod of the dial indicator penetrates through the clamping space, the fixture block is connected with the body through a screw, and the size of the clamping space can be adjusted through screwing the screw.