CN113043593A - 3D printer leveling device and 3D printing apparatus - Google Patents
3D printer leveling device and 3D printing apparatus Download PDFInfo
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- CN113043593A CN113043593A CN202110455008.7A CN202110455008A CN113043593A CN 113043593 A CN113043593 A CN 113043593A CN 202110455008 A CN202110455008 A CN 202110455008A CN 113043593 A CN113043593 A CN 113043593A
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- 238000010146 3D printing Methods 0.000 title claims abstract description 10
- 238000007639 printing Methods 0.000 claims abstract description 94
- 238000005259 measurement Methods 0.000 claims description 31
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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Abstract
The invention provides a 3D printer leveling device and 3D printing equipment, wherein the 3D printer leveling device comprises: mounting a plate; the base is fixedly arranged on one side surface of the mounting plate, and an elastic connecting component is arranged between the base and the mounting plate; a strain measuring member in contact with the elastic connection member; the printing head assembly is positioned on one side of the base back to the mounting plate, and the first end of the printing head assembly penetrates through the first through hole in the base to be connected with the elastic connecting component; when the second end of the printing head assembly touches the printing platform, the printing head assembly moves towards the direction close to the mounting plate, so that the elastic connecting part is compressed, and the strain measuring part is deformed. Therefore, whether the printing head assembly is in contact with the printing platform or not can be determined by measuring the deformation, the height of each point on the printing platform in contact with the printing head assembly can be recorded, the same interval between the printing head assembly and each point on the printing platform can be kept by referring to the height of each point, the automatic leveling of the printing platform is realized, and the efficiency of the mode is high.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a leveling device of a 3D printer and 3D printing equipment.
Background
3D printer requires very high to work platform's roughness, before the printer prints or use the long time after, the height and the angle of platform probably change, need adjust to guarantee that each point distance is invariable on printhead subassembly and the print platform, avoid the distance too far to make the adhesion that printing material can not be ideal on print platform, and avoid the distance too near to cause the printing shower nozzle to block up, ejection of compact difficulty. The traditional leveling method is manual adjustment. However, the manual leveling method has the problems of complicated operation and low efficiency.
Disclosure of Invention
The embodiment of the invention aims to provide a leveling device of a 3D printer and 3D printing equipment, and solves the problems of complex operation and low efficiency of the existing manual leveling method.
In order to achieve the above object, in a first aspect, an embodiment of the present invention provides a 3D printer leveling device, including:
mounting a plate;
the base is fixedly arranged on one side face of the mounting plate, and an elastic connecting component is arranged between the base and the mounting plate;
a strain measuring part in contact with the elastic connection part;
the printing head assembly is positioned on one side, back to the mounting plate, of the base, and a first end of the printing head assembly penetrates through a first through hole in the base to be connected with the elastic connecting component;
when the second end of the printing head assembly touches the printing platform, the printing head assembly moves towards the direction close to the mounting plate, so that the elastic connecting part is compressed, and the strain measuring part is deformed.
Optionally, the strain measurement component is disposed on the base;
or, the strain measurement component is arranged on one side of the elastic connecting component close to the mounting plate.
Optionally, the strain measurement component includes a spring plate and a strain gauge, the strain gauge is attached to a surface of the spring plate, and a first end of the spring plate abuts between the elastic connection component and the base, or abuts between the elastic connection component and the mounting plate.
Optionally, the strain measurement component further includes a cushion block, the cushion block is fixedly mounted on a side surface of the base, a first end of the spring piece abuts against between the elastic connection component and the base, and a second end of the spring piece is fixed on the cushion block;
when the second end of the printing head assembly touches the printing platform, the printing head assembly moves towards the direction close to the mounting plate, so that the elastic connecting part is compressed, the spring piece rebounds towards the direction close to the mounting plate, and deformation quantity is generated.
Optionally, the elastic connection component includes a clasping sleeve and a spring, and the spring is disposed between the clasping sleeve and the mounting plate;
the first end of the printing head assembly sequentially penetrates through the first through hole in the base and the clamping sleeve and is clamped and fixed by the clamping sleeve.
Optionally, the spring is in a preset compressed state.
Optionally, the first end of the print head assembly is of a cylindrical structure, a notch is formed in the side face of the cylindrical structure, and a groove matched with the notch is formed in the inner side of the clasping sleeve.
Optionally, one end of the clasping sleeve is a notch, and after the first end of the printhead assembly penetrates through the clasping sleeve, the clasping sleeve is locked with the notch through a screw.
Optionally, the strain gauge is a resistance strain gauge.
In a second aspect, an embodiment of the present invention provides a 3D printing apparatus, including a control component and the 3D printer leveling device described in the first aspect above;
the strain measurement component in the 3D printer leveling device feeds the measured deformation back to the control component, the control component judges whether a printing head component of the 3D printer leveling device touches a printing platform currently based on the deformation, records height data of each point when the printing head component contacts with each point on the printing platform, and makes the printing head component and each point on the printing platform keep the same interval by referring to the height data of each point when printing.
One of the above technical solutions has the following advantages or beneficial effects:
the leveling device of the 3D printer in the embodiment of the invention comprises: mounting a plate; the base is fixedly arranged on one side face of the mounting plate, and an elastic connecting component is arranged between the base and the mounting plate; a strain measuring part in contact with the elastic connection part; the printing head assembly is positioned on one side, back to the mounting plate, of the base, and a first end of the printing head assembly penetrates through a first through hole in the base to be connected with the elastic connecting component; when the second end of the printing head assembly touches the printing platform, the printing head assembly moves towards the direction close to the mounting plate, so that the elastic connecting part is compressed, and the strain measuring part is deformed. Like this, through with the print head subassembly, base and elastic connection part set to the activity equipment mode, and set up the strain measurement part that contacts with elastic connection part, it takes place deformation to cause the strain measurement part more easily when touching print platform for the print head subassembly, thereby can confirm whether to beat the print head subassembly and contact with print platform through measuring the deformation volume, then the high data of each point when accessible this kind of mode recording is beaten the contact of each point on print head subassembly and the print platform, and then can make the print head subassembly keep the same interval with each point on the print platform according to the high data of each point, realize print platform's automatic leveling, and this mode reducible manual operation, efficiency is higher.
Drawings
Fig. 1 is an assembly schematic diagram of a leveling device of a 3D printer according to an embodiment of the present invention;
fig. 2 is a front view of a leveling device of a 3D printer according to an embodiment of the present invention;
fig. 3 is an exploded view of a part of a leveling device of a 3D printer according to an embodiment of the present invention;
fig. 4 is a schematic view of an application scenario of a 3D printer leveling device according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a printing platform for fetching dots and connecting lines according to an embodiment of the present invention;
fig. 6 is a schematic working diagram of leveling of a 3D printer leveling device according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, 2, and 3, an embodiment of the present invention provides a 3D printer leveling device, including:
a mounting plate 11;
a base 12, wherein the base 12 is fixedly arranged on one side surface of the mounting plate 11, and an elastic connecting component 13 is arranged between the base 12 and the mounting plate 11;
a strain measuring member 14, the strain measuring member 14 being in contact with the elastic connection member 13;
the printing head assembly 15 is positioned on one side of the base 12, which is opposite to the mounting plate 11, and a first end of the printing head assembly 15 passes through the first through hole 121 on the base 12 to be connected with the elastic connecting part 13;
wherein when the second end of the print head assembly 15 touches the printing platform, the print head assembly 15 moves towards the mounting plate 11, causing the elastic connection member 13 to compress and the strain measuring member 14 to deform.
In the embodiment of the present invention, as shown in fig. 1, the leveling device of the 3D printer includes a mounting plate 11, a base 12, a strain measuring component 14 and a print head assembly 15, wherein the base 12 is fixedly connected to the mounting plate 11 and is located at the lower side of the mounting plate 11, and specifically, as shown in fig. 3, the mounting plate 11 and the base 12 are respectively provided with a mounting hole, so that the mounting plate 11 and the base 12 can be fixedly connected by screwing a first screw 16 through the mounting holes of the mounting plate 11 and the base 12. And as shown in fig. 1 and 3, the base 12 may be irregular, the raised column portion of the base 12 is fixed in contact with the mounting plate 11, and the base 12 also has a portion that is not in contact with the mounting plate 11, so that a space exists between the mounting plate 11 and the base 12 for disposing the elastic connection member 13, and the upper and lower ends of the elastic connection member 13 are in contact with the mounting plate 11 and the base 12, respectively.
As shown in fig. 1, the printhead assembly 15 is located on a lower side of the base 12 opposite to the mounting plate 11, the base 12 is provided with a first through hole 121 penetrating vertically, a first end of the printhead assembly 15 can pass through the first through hole 121 to be connected with the elastic connection member 13, so that after the printhead assembly 15 is mounted, the printhead assembly 15 and the elastic connection member 13 can form a fixed whole, the printhead assembly 15 can move up and down between the first through hole 121 of the base 12, the movement range is a compressible amount of the elastic connection member 13, and the elastic connection member 13 can extend and retract between the mounting plate 1 and the base 12 along with the up and down movement of the printhead assembly 15. Specifically, in practical application, the printhead assembly 15 can be kept in a stable state without an external force, the elastic connection member 13 also keeps in an initial telescopic state, when the second end, i.e., the bottom, of the printhead assembly 15 touches the printing platform, the bottom of the printhead assembly 15 is stressed, so that the printhead assembly 15 slightly moves upwards, the elastic connection member 13 is caused to contract towards the direction of the mounting plate 11, when the stress on the bottom of the printhead assembly 15 disappears, the printhead assembly 15 can return to the original position downwards under the action of gravity, and the elastic connection member 13 returns to the initial telescopic state.
In the embodiment of the present invention, in order to detect the action when the print head assembly 15 touches the print platform, a strain measurement component 14 contacting the elastic connection component 13 may be disposed at a suitable position, so that when the print head assembly 15 touches the print platform, the print head assembly 15 moves upward, and the elastic connection component 13 compresses, the strain measurement component 14 is driven to deform, and then the strain measurement component 14 can determine that the print head assembly 15 touches the print platform currently by sensing its deformation amount.
In this way, the process of leveling the printing platform by using the 3D printer leveling device may be, as shown in fig. 4, installing the 3D printer leveling device 40 on the printing apparatus, where the 3D printer leveling device 40 can move in four directions, front, back, left, and right, and the bottom printing platform 41 can move up and down, when the printing platform 41 ascends, the surface of the printing platform 41 touches the printing head assembly 15, so that the printing head assembly 15 generates upward micro-movement, and the deformation amount sensed by the control component connected to the 3D printer leveling device 40 through the strain measurement component 14 determines that the printing head assembly 15 touches the printing platform 41, and records the current height position of the printing platform 41. As shown in fig. 5, different dots can be uniformly arranged on the printing platform 41, the printing head assembly 15 is contacted with the different dots, the control component records the height data of each dot, and the data of each dot is integrated and connected to form a surface, which is a data simulation plane of the surface of the printing platform 41 to be tested. As shown in fig. 6, when the 3D printer prints, the print head assembly 15 passes through the upper positions corresponding to the points on the data simulation plane, and the control unit adjusts the distance between the bottom of the print head assembly 15 and the points of the print platform 41 according to the statistical height data, so that the interval between the print platform 41 and the bottom of the print head assembly 15 is always kept constant.
Optionally, the strain measurement component 14 is disposed on the base 12;
alternatively, the strain measuring unit 14 is provided on the side of the elastic connection unit 13 close to the mounting plate 11.
That is, the strain measuring part 14 may be disposed at two positions, and in one embodiment, as shown in fig. 1, the strain measuring part 14 may be disposed on the base 12 and contact the elastic connection part 13, that is, the strain measuring part 14 may be pressed between the elastic connection part 13 and the base 12. Thus, when the print head assembly 15 moves upward to cause the elastic connection member 13 to contract upward, the pressure of the elastic connection member 13 on the strain measurement member 14 will be reduced, and the strain measurement member 14 will also deform synchronously and sense its deformation amount.
In another embodiment, the strain measuring part 14 may be disposed on a side of the elastic connection part 13 close to the mounting plate 11, that is, the strain measuring part 14 may be pressed between the elastic connection part 13 and the mounting plate 11. Thus, when the print head assembly 15 moves upward to cause the elastic connection part 13 to contract upward, the pressure of the elastic connection part 13 on the strain measurement part 14 is further increased to push against the strain measurement part 14 to deform upward, and the strain measurement part 14 can sense the deformation amount of the strain measurement part 14.
In this way, by providing the strain measurement unit 14 on the base 12 or on the side of the elastic connection unit 13 close to the mounting plate 11 and keeping contact with the elastic connection unit 13, it is possible to easily deform the print head assembly 15 when it moves upward, and to ensure good sensitivity.
Alternatively, as shown in fig. 3, the strain measurement unit 14 includes a spring plate 141 and a strain gauge 142, the strain gauge 142 is attached to a surface of the spring plate 141, and a first end of the spring plate 141 abuts between the elastic connection unit 13 and the base 12, or abuts between the elastic connection unit 13 and the mounting plate 11.
That is, in one embodiment, the strain measuring part 14 may include a spring plate 141 and a strain gauge 142, and the strain gauge 142 may be attached to a surface of the spring plate 141, specifically, the strain gauge 142 may be attached to one end of an upper surface of the spring plate 141, and as shown in fig. 1, the other end, that is, a first end, of the spring plate 141 may be abutted between the elastic connecting part 13 and the base 12. Thus, the spring plate 141 abutting between the elastic connection member 13 and the base 12 is allowed to perform a simultaneous rebound operation in response to the upward movement of the head unit 15, and the strain gauge 142 attached to the surface of the spring plate 141 is also allowed to deform in response to the rebound of the spring plate 141 and to sense its own deformation amount.
The first end of the spring plate 141 may also abut between the elastic connection member 13 and the mounting plate 11, so that the spring plate 141 abutting between the elastic connection member 13 and the mounting plate 11 may be further deformed by pressure in response to the upward movement of the print head assembly 15, and the strain gauge 142 attached to the surface of the spring plate 141 may also be deformed in response to the deformation of the spring plate 141 and may sense its own deformation amount.
The thickness of the spring plate 141 can be selected from 0.1mm to 0.4mm, for example, 0.2mm, and the contact mounting method using a thin spring plate has the advantage of being more sensitive to sensing.
Therefore, the combination of the spring piece and the strain gauge is used as a strain measurement component, so that the structure is simple, and a good strain sensing effect can be achieved.
In addition, the scheme can solve the problem that the similar device using the strain gauge for leveling can only sense when the force of the printing head assembly jacking platform is high, and can reduce the leveling data deviation caused by the forced deformation of the printing head assembly and the pressed inclination of the platform.
Optionally, strain gauge 142 is a resistive strain gauge.
Can select resistance strain gauge to respond to deformation promptly, when spring leaf 141 and resistance strain gauge take place deformation, resistance strain gauge can produce resistance change to the current change that passes through on the resistance strain gauge is influenced, like this, the fluctuation of accessible measuring current judges and beats printer head assembly 15 and whether contact with print platform, and this kind of detection mode is comparatively accurate, easily realizes.
Optionally, as shown in fig. 1 and 3, the strain measuring unit 14 further includes a pad 143, the pad 143 is fixedly mounted on a side surface of the base 12, a first end of the spring plate 141 abuts between the elastic connection unit 13 and the base 12, and a second end of the spring plate 141 is fixed on the pad 143;
when the second end of the print head assembly 15 touches the printing platform, the print head assembly 15 moves towards the direction close to the mounting plate, so that the elastic connecting part 13 is compressed, and further the spring leaf 141 rebounds towards the direction close to the mounting plate 11, and a deformation quantity is generated.
That is, in one embodiment, one end of the spring piece 141 may be fixedly installed on the base 12 by the spacer 143, and the other end thereof may be abutted between the elastic connection member 13 and the base 12, and specifically, as shown in fig. 1 and 3, the spring plate is L-shaped, one surface of the spring plate 141 is attached with the strain gauge 142, the other surface is provided with a through hole, the pad 143 is also provided with a through hole, the side surface of the base 12 is also provided with a mounting hole for mounting the pad 143, and thus, the second end of the spring plate 141 can be fixedly mounted on the cushion block 143 by a screw, such as the second screw 17, passing through the through holes of the spring plate 141 and the cushion block 143 in sequence, and finally screwing the screw after entering the mounting hole on the base 12, the pad 143 is fixedly mounted on the side surface of the base 12, and the first end of the spring piece 141 is in contact with the space between the elastic connection member 13 and the base 12, and can be deformed by a predetermined amount by the pressure of the elastic connection member 13.
Thus, when the second end of the printhead assembly 15 contacts the printing platform, the printhead assembly 15 moves toward the mounting plate 11, the elastic connection part 13 is compressed accordingly, and the end of the elastic connection part 13 contacting the spring plate 141 is lifted upward, so that the spring plate 141 rebounds toward the mounting plate 11 accordingly to generate a deformation, and the strain gauge 142 deforms accordingly and senses the deformation thereof.
In this embodiment, one end of the spring plate is fixed, and the other end of the spring plate abuts against the elastic connecting part and the base, so that the spring plate can be ensured to rebound well in the movement of the printing head assembly and the elastic connecting part, and further, better sensing sensitivity is ensured.
Alternatively, as shown in fig. 3, the elastic connection member 13 includes a clasping sleeve 131 and a spring 132, and the spring 132 is disposed between the clasping sleeve 131 and the mounting plate 11;
as shown in fig. 1, the first end of the printhead assembly 15 passes through the first through hole 121 and the clasping sleeve 131 of the base 12 in sequence, and is clamped and fixed by the clasping sleeve 131.
That is, in one embodiment, the elastic connection component 13 may include a clasping sleeve 131 and a spring 132, wherein the spring 132 may be disposed above the clasping sleeve 131, the first end of the printhead assembly 15 may sequentially pass through the first through hole 121 and the clasping sleeve 131 on the base 12, and the clasping sleeve 131 may be locked to clamp and fix the first end of the printhead assembly 15, and after the base 12 is fixed to the mounting plate 11, the clasping sleeve 131 and the spring 132 are located between the base 12 and the mounting plate 11, so as to ensure the stability of the printhead assembly 15 to a certain extent, and ensure that the clasping sleeve 131 can compress the spring 132 upwards under the thrust of the printhead assembly 15, thereby deforming the strain measuring component 14.
The spring 132 can be selected to have smaller elasticity, so that the spring 132 can deform under the action of smaller external force after the printing head assembly 15 touches the printing platform, that is, the spring 132 can be ensured to deform easily, and further the strain measurement component 14 can be triggered to deform easily.
Optionally, the spring 132 is in a preset compressed state.
That is, the spring 132 may be in a preset compression state, for example, may be in a certain compression state, but still has a further compression space, when the leveling device of the 3D printer is not under a static state of being subjected to an external force, so that the initial state of the spring 132 is fixed to a certain compression state, the printhead assembly 15 may be better stabilized, and the printhead assembly 15 is prevented from shaking during operation.
Optionally, as shown in fig. 3, the first end of the print head assembly 15 is a cylindrical structure 151, a notch 152 is formed on a side surface of the cylindrical structure 151, and a groove adapted to the notch 152 is formed on an inner side of the clasping sleeve 131.
That is, as shown in fig. 3, the first end of the printhead assembly 15 is a cylindrical structure 151, and a section of notch 152 is disposed on a side surface of the cylindrical structure 151, and accordingly, a groove adapted to the notch 152 is disposed on an inner side of the clasping sleeve 131 contacting the cylindrical structure 151, so that the cylindrical structure 151 and the clasping sleeve 131 can be fixed more tightly by the notch 152 and the groove.
Optionally, as shown in fig. 1 and 3, one end of the clasping sleeve 131 is a notch, and after the first end of the printhead assembly 15 passes through the clasping sleeve 131, the clasping sleeve 131 is locked to the notch by a screw.
As shown in fig. 3, one end of the clasping sleeve 131 is a notch, and openings are formed on both sides of the notch, so that during assembly, the first end of the printhead assembly 15 can pass through the clasping sleeve 131, and after the two reach a proper fitting position, the notch is locked by a screw, such as the third screw 18, so that the clasping sleeve 131 clamps and fixes the first end of the printhead assembly 15.
Thus, with this embodiment, the fastening of the hug sleeve 131 to the print head assembly 15 can be better achieved.
It should be noted that the embodiments of the present invention can be applied to a single printhead assembly, and can also be applied to a dual printhead assembly, and the number of the printheads is not particularly limited. For the 3D printer leveling device comprising the double printing head assemblies, when the strain measurement component is arranged, the strain measurement component can be arranged on one side where one of the printing head assemblies is arranged, and the strain measurement component can also be arranged on one side where each printing head assembly is arranged.
The leveling device of the 3D printer in the embodiment of the invention comprises: mounting a plate; the base is fixedly arranged on one side face of the mounting plate, and an elastic connecting component is arranged between the base and the mounting plate; a strain measuring part in contact with the elastic connection part; the printing head assembly is positioned on one side, back to the mounting plate, of the base, and a first end of the printing head assembly penetrates through a first through hole in the base to be connected with the elastic connecting component; when the second end of the printing head assembly touches the printing platform, the printing head assembly moves towards the direction close to the mounting plate, so that the elastic connecting part is compressed, and the strain measuring part is deformed. Like this, through with the print head subassembly, base and elastic connection part set to the activity equipment mode, and set up the strain measurement part that contacts with elastic connection part, it takes place deformation to cause the strain measurement part more easily when touching print platform for the print head subassembly, thereby can confirm whether to beat the print head subassembly and contact with print platform through measuring the deformation volume, then the high data of each point when accessible this kind of mode recording is beaten the contact of each point on print head subassembly and the print platform, and then can make the print head subassembly keep the same interval with each point on the print platform according to the high data of each point, realize print platform's automatic leveling, and this mode reducible manual operation, efficiency is higher. In addition, the automatic leveling scheme in the embodiment of the invention effectively reduces the requirement on the flatness of the platform, simplifies the process of leveling the printing platform by a user, saves the leveling time of the printing platform and is more beneficial to the use of the user who cannot operate the leveling of the printing platform skillfully.
The embodiment of the invention provides 3D printing equipment, which comprises a control part and the leveling device of the 3D printer introduced in the embodiment;
the strain measurement component in the 3D printer leveling device feeds the measured deformation back to the control component, the control component judges whether a printing head component of the 3D printer leveling device touches a printing platform currently based on the deformation, records height data of each point when the printing head component contacts with each point on the printing platform, and makes the printing head component and each point on the printing platform keep the same interval by referring to the height data of each point when printing.
It should be noted that the implementation manner of the foregoing embodiment of the leveling device of the 3D printer is also applicable to the embodiment of the 3D printing apparatus, and can achieve the same technical effect, and details are not described herein again.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a 3D printer levelling device which characterized in that includes:
mounting a plate;
the base is fixedly arranged on one side face of the mounting plate, and an elastic connecting component is arranged between the base and the mounting plate;
a strain measuring part in contact with the elastic connection part;
the printing head assembly is positioned on one side, back to the mounting plate, of the base, and a first end of the printing head assembly penetrates through a first through hole in the base to be connected with the elastic connecting component;
when the second end of the printing head assembly touches the printing platform, the printing head assembly moves towards the direction close to the mounting plate, so that the elastic connecting part is compressed, and the strain measuring part is deformed.
2. The 3D printer leveling device of claim 1, wherein the strain measurement component is disposed at the base;
or, the strain measurement component is arranged on one side of the elastic connecting component close to the mounting plate.
3. The 3D printer leveling device according to claim 1, wherein the strain measuring member includes a spring plate and a strain gauge attached to a surface of the spring plate, and a first end of the spring plate abuts between the elastic connection member and the base or between the elastic connection member and the mounting plate.
4. The 3D printer leveling device of claim 3, wherein the strain measuring member further comprises a spacer block fixedly mounted on a side surface of the base, a first end of the spring plate abuts between the elastic connecting member and the base, and a second end of the spring plate is fixed to the spacer block;
when the second end of the printing head assembly touches the printing platform, the printing head assembly moves towards the direction close to the mounting plate, so that the elastic connecting part is compressed, the spring piece rebounds towards the direction close to the mounting plate, and deformation quantity is generated.
5. The 3D printer leveling device of claim 1, wherein the resilient connecting member comprises a clasping sleeve and a spring, the spring being disposed between the clasping sleeve and the mounting plate;
the first end of the printing head assembly sequentially penetrates through the first through hole in the base and the clamping sleeve and is clamped and fixed by the clamping sleeve.
6. The 3D printer leveling device of claim 5, wherein the spring is in a preset compressed state.
7. The 3D printer leveling device of claim 5, wherein the first end of the printhead assembly is a cylindrical structure, a notch is formed in a side face of the cylindrical structure, and a groove matched with the notch is formed in the inner side of the clasping sleeve.
8. The 3D printer leveling device of claim 5, wherein one end of the clasping sleeve is a notch, and the clasping sleeve locks the notch with a screw after the first end of the printhead assembly passes through the clasping sleeve.
9. The 3D printer leveling device of claim 3, wherein the strain gauge is a resistive strain gauge.
10. A 3D printing apparatus comprising a control component and the 3D printer leveling device of any one of claims 1 to 9;
the strain measurement component in the 3D printer leveling device feeds the measured deformation back to the control component, the control component judges whether a printing head component of the 3D printer leveling device touches a printing platform currently based on the deformation, records height data of each point when the printing head component contacts with each point on the printing platform, and makes the printing head component and each point on the printing platform keep the same interval by referring to the height data of each point when printing.
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| CN202110455008.7A CN113043593A (en) | 2021-04-26 | 2021-04-26 | 3D printer leveling device and 3D printing apparatus |
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| CN202110455008.7A CN113043593A (en) | 2021-04-26 | 2021-04-26 | 3D printer leveling device and 3D printing apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114589924A (en) * | 2022-03-14 | 2022-06-07 | 深圳市纵维立方科技有限公司 | Control method of three-dimensional printer, three-dimensional printer and readable storage medium |
| WO2023078324A1 (en) * | 2021-11-03 | 2023-05-11 | 深圳市纵维立方科技有限公司 | Printing platform for 3d printer, and 3d printer |
| CN117341198A (en) * | 2023-10-24 | 2024-01-05 | 深圳市智能派科技有限公司 | Construction platform with self-leveling function |
-
2021
- 2021-04-26 CN CN202110455008.7A patent/CN113043593A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023078324A1 (en) * | 2021-11-03 | 2023-05-11 | 深圳市纵维立方科技有限公司 | Printing platform for 3d printer, and 3d printer |
| CN114589924A (en) * | 2022-03-14 | 2022-06-07 | 深圳市纵维立方科技有限公司 | Control method of three-dimensional printer, three-dimensional printer and readable storage medium |
| CN114589924B (en) * | 2022-03-14 | 2024-01-05 | 深圳市纵维立方科技有限公司 | Control method of three-dimensional printer, three-dimensional printer and readable storage medium |
| CN117341198A (en) * | 2023-10-24 | 2024-01-05 | 深圳市智能派科技有限公司 | Construction platform with self-leveling function |
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