CN215320650U

CN215320650U - Optical axis mounting structure and 3D printer

Info

Publication number: CN215320650U
Application number: CN202120256765.7U
Authority: CN
Inventors: 刘辉林; 唐京科; 陈春; 敖丹军; 雷磊
Original assignee: Shenzhen Chuangxiang 3D Technology Co Ltd
Current assignee: Shenzhen Chuangxiang 3D Technology Co Ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-12-28
Anticipated expiration: 2031-01-29

Abstract

The utility model discloses an optical axis mounting structure and a 3D printer, wherein the optical axis mounting structure comprises an optical axis, a linear bearing sleeved on the optical axis and a clamping bearing assembly, at least one clamping groove is formed in the clamping bearing assembly, and the linear bearing is clamped in the clamping groove so that the clamping bearing assembly is arranged on the optical axis in a sliding mode. The utility model forms a detachable structural design for the components which are fixed on the optical axis in a sliding way through the card bearing assembly by the card bearing assembly which is clamped with the linear bearing, is convenient to install and disassemble, and the optical axis installation structure can be applied to an X-axis drive structure and a Y-axis drive structure of a 3D printer.

Description

Optical axis mounting structure and 3D printer

Technical Field

The utility model belongs to the technical field of 3D printers, and particularly relates to an optical axis mounting structure and a 3D printer.

Background

The field of 3D printing technology application is wider and wider under the promotion of computer digital technology intellectualization, and particularly the FDM hot melting technology is favored by DIY fans more and more.

The 3D printer is a precise electromechanical integrated device and generally comprises an X axis, a Y axis and a Z axis which are arranged on a machine box, wherein the X axis and the Y axis are arranged in an XY motion plane vertical to the Z axis and are collectively called as XY axes; the 3D beats printer head setting on the X axle, and the X axle is located on the Z axle, and mutual independent motion between X axle, Y axle and the Z axle adjusts the interval between them through the triaxial, realizes the 3D print job of 3D printer. The XY axis mechanism of a common 3D printer mainly includes two types: the first is the matching structure of the guide rail and the sliding block or the pulley, and the second is the structure of the bearing and the optical axis.

The two XY axis mechanisms described above have the following drawbacks:

1. the first is that the mechanical structure of the XY axis is complex, the positioning accuracy is poor, the mechanical resistance is large, the mechanical vibration is large, and the 3D printing head and the printing platform are difficult to install and disassemble;

2. the second is that 3D beats printer head and print platform and directly passes through the holding tightly fixedly with the bearing, and this kind of mode is easy to adjust but unstable, and it is also inconvenient installation and dismantlement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides an optical axis mounting structure, which enables a component which is externally fixed on an optical axis in a sliding manner through a clamping bearing assembly to form a detachable structural design through the clamping bearing assembly in a clamping manner, and is convenient to mount and dismount.

In order to solve the above technical problem, the present invention provides an optical axis mounting structure, including an optical axis and a linear bearing sleeved on the optical axis, further including:

the linear bearing is clamped in the clamping groove, so that the clamping bearing assembly is arranged on the optical axis in a sliding mode.

Furthermore, openings for the optical axis to pass through are formed in two ends of the clamping groove.

Furthermore, the two ends of the clamping groove are respectively abutted to the end faces of the two ends of the linear bearing.

Furthermore, at least one pair of raised buckles are symmetrically arranged on two side wall surfaces of the clamping groove, and the buckles are clamped with the outer peripheral surface of the linear bearing.

Further, the distance between each pair of the buckles is smaller than the outer diameter of the linear bearing.

The utility model also provides a 3D printer which comprises the optical axis mounting structure.

Furthermore, the 3D printer further comprises a base, a printing platform arranged on the base, a Y-axis belt driving assembly used for driving the printing platform to move along the Y direction, a printing spray head arranged above the printing platform, an X-axis belt driving assembly used for driving the printing spray head to move along the X direction, and a Z-axis driving assembly used for driving the X-axis belt driving assembly and the printing spray head to move along the Z direction; the base is provided with at least one optical axis mounting structure, the printing platform is fixed on the card bearing assembly, and the card bearing assembly is in transmission connection with the Y-axis belt driving assembly.

Further, Y axle belt drive assembly locates including rotating Y axle belt on the base and with the first motor that Y axle belt transmission is connected, the optical axis with Y axle belt parallel arrangement, just card bearing subassembly with Y axle belt fixed connection.

Further, the 3D printer still includes card belt subassembly, card belt subassembly is fixed in on the card bearing subassembly, just card belt subassembly with Y axle belt fixed connection.

Furthermore, the belt clamping component is provided with at least one clamping opening for clamping a Y-axis belt.

The utility model has the following beneficial effects: through a clamping bearing assembly clamped with the linear bearing, a part which is externally fixed on the optical axis in a sliding way through the clamping bearing assembly forms a detachable clamping structure design, so that the installation and the disassembly are convenient, and in addition, the clamping connection structure of the clamping bearing assembly and the linear bearing is more stable and firm; the two ends of the clamping groove are respectively abutted against the two end faces of the linear bearing, so that no axial gap exists between the linear bearing and the clamping groove, and the linear bearing can move more stably and smoothly; the linear bearing is clamped by the clamping buckle, so that enough clamping force exists between the clamping bearing assembly and the linear bearing, and the assembly and the disassembly between the clamping bearing assembly and the linear bearing can be facilitated; the optical axis mounting structure can be applied to an X-axis driving structure and a Y-axis driving structure of a 3D printer.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the principles of the utility model:

FIG. 1 is a schematic view of an optical axis mounting structure in an embodiment;

FIG. 2 is a schematic view of a card bearing assembly according to an embodiment;

FIG. 3 is a schematic view of another perspective of the card bearing assembly of the embodiment;

FIG. 4 is a schematic view of a 3D printer according to embodiment 2;

fig. 5 is a schematic view of the base, the optical axis mounting structure and the Y-axis belt driving assembly in embodiment 2 after assembly;

FIG. 6 is a schematic view of a strap-clamping assembly according to embodiment 2;

FIG. 7 is a schematic view of an embodiment of a print head assembled with an X-axis belt drive assembly;

in the drawings, the components represented by the respective reference numerals are listed below:

1. optical axis, 2, linear bearing, 3, card bearing subassembly, 31, draw-in groove, 32, opening, 33, buckle, 34, strengthening rib, 35, screw, 10, base, 20, print platform, 30, print the shower nozzle, 40, Y axle belt, 50, first motor, 60, card belt subassembly, 601, press from both sides mouthful, 70, Z axle, 80, second motor, 90, shaft coupling, 100, lead screw, 101, X axle, 102, X axle belt, 103, third motor, 104, mounting bracket.

Detailed Description

For a fuller understanding of the technical aspects of the present invention, reference should be made to the following detailed description taken together with the accompanying drawings; it is to be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", and the like, do not refer to the orientation or positional relationship shown in the drawings, but merely serve to facilitate the description of the present usage confidence and simplify the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used to distinguish between different elements, etc., and do not denote a sequential order, nor do the terms "first" and "second" define different types.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1 and fig. 2, the optical axis mounting structure of the present embodiment includes an optical axis 1 and a linear bearing 2 slidably sleeved on the optical axis 1, and further includes a card bearing assembly 3, one end of the card bearing assembly 3 is provided with a slot 31, and the linear bearing 2 is engaged in the slot 31, so that the card bearing assembly 3 is slidably disposed on the optical axis 1 and forms a detachable engagement structure; in the structure, the outer part is fixed on the optical axis through the clamping bearing assembly in a sliding manner to form a detachable clamping structure design through the clamping bearing assembly clamped with the linear bearing, so that the installation and the disassembly are convenient, and in addition, the clamping connection structure of the clamping bearing assembly and the linear bearing is more stable and firm.

As shown in fig. 1, the two ends of the clamping groove 31 are provided with openings 32 for the optical axis 1 to pass through, and the two ends of the clamping groove 31 are respectively abutted to the end faces of the two ends of the linear bearing 2, so that the linear bearing is axially limited, no axial gap exists between the linear bearing and the clamping groove, and the movement is more stable and smooth.

As shown in fig. 2, at least one pair of protruding buckles 33 are symmetrically arranged on two side wall surfaces of the slot 31, three pairs are arranged in this embodiment, and are distributed on the front, middle and rear sections of the slot, and the distance between each pair of symmetrical buckles 33 on two sides is smaller than the outer diameter of the linear bearing 2, that is, the bayonet between the two buckles 33 is smaller than the outer diameter of the linear bearing 2, so that the outer peripheral surface of the linear bearing is clamped by the buckles 33 after the linear bearing is pressed into the slot 31 by pressure.

As shown in fig. 2, the two sides of the upper end of the buckle 33 are both provided with the reinforcing ribs 34 in the shape of right-angled triangles, the inclined planes of the reinforcing ribs 34 are inclined downwards from outside to inside, the strength of the buckle is improved by the aid of the reinforcing ribs 34, the situation that the buckle is damaged in the process of clamping the linear bearing is avoided, and the inclined planes on the reinforcing ribs are utilized to enable the linear bearing to be pressed downwards into the clamping groove 31, so that the assembly is facilitated.

As shown in fig. 3, one end of the card bearing assembly 3, which faces away from the card slot, is provided with a plurality of screw holes 35 for fixing with a printing platform or a printing nozzle in the 3D printer.

In other embodiments, two clamping grooves distributed left and right can be arranged at one end of the card bearing assembly for matching and clamping with the linear bearings on the two optical shafts, namely, one card bearing assembly is used for being simultaneously installed with the two optical shafts.

Example 2

As shown in fig. 1 to 6, the 3D printer shown in this embodiment includes the optical axis mounting structure according to embodiment 1, and further includes a base 10, a printing platform 20 disposed on the base 10, a Y-axis belt driving assembly for driving the printing platform 20 to move along a Y-direction, a printing head 30 disposed above the printing platform 20, an X-axis belt driving assembly for driving the printing head 30 to move along an X-direction, and a Z-axis driving assembly for driving the X-axis belt driving assembly and the printing head 30 to move along a Z-direction; two optical axis mounting structures are arranged on the base 10 and are matched with the Y-axis belt driving assembly to drive the printing platform 20 together, the printing platform 20 is fixed with a screw hole 35 on the card bearing assembly 3 through a screw, and the card bearing assembly 3 is in transmission connection with the Y-axis belt driving assembly.

As shown in fig. 5, the Y-axis belt driving assembly includes a Y-axis belt 40 rotatably disposed on the base 10 and a first motor 50 in transmission connection with the Y-axis belt 40, two optical axis mounting structures are respectively disposed on two sides of the Y-axis belt and are disposed parallel to the Y-axis belt, and the card bearing assembly 3 is fixedly connected with the Y-axis belt 40.

As shown in fig. 5 and 6, the 3D printer further includes a belt clamping assembly 60, the belt clamping assembly 60 is fixed in the belt clamping bearing assembly 3 and covers the linear bearing 2, and at least one clamping opening 601 for clamping the Y-axis belt 40 is formed in the belt clamping assembly 60, so that the belt clamping assembly 60 is fixedly connected with the Y-axis belt 40, and the printing platform 20 is in transmission connection with the Y-axis belt 40.

As shown in fig. 4, the Z-axis driving assembly includes two Z-axes 70 vertically disposed on the base 10, a second motor 80 disposed at a lower end of the Z-axes 70, and a lead screw 100 vertically disposed and in transmission connection with the second motor 80 through a coupling 90.

As shown in fig. 4, the X-axis belt driving assembly includes an X-axis 101 slidably disposed on the Z-axis 70 through a mounting bracket 104 at one end, an X-axis belt 102 rotatably disposed on the X-axis 101, and a third motor 103 disposed on the X-axis 101 and in transmission connection with the X-axis belt 102; the print head 30 is slidably disposed on the X-axis 101 and fixedly connected to the X-axis belt 102, and the mounting frame 104 is drivingly connected to the lead screw 100 through a lead screw nut.

In other embodiments, as shown in fig. 7, the X-axis consists of two parallel optical axes 1 and the matched linear bearings, and the print head 30 is directly and fixedly connected with the two linear bearings on the optical axes through a card bearing assembly 3 with two clamping slots, and is fixedly connected with the X-axis belt 102 by a clamping belt assembly 60 fixed with the card bearing assembly 3, i.e. the X-axis belt driving assembly includes the optical axis mounting structure described in embodiment 1.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.

Claims

1. The utility model provides an optical axis mounting structure, includes optical axis (1) and suit in linear bearing (2) on optical axis (1), its characterized in that still includes:

the optical axis clamping device comprises a clamping bearing assembly (3), wherein at least one clamping groove (31) is formed in the clamping bearing assembly (3), and the linear bearing (2) is clamped in the clamping groove (31) so that the clamping bearing assembly (3) can be arranged on the optical axis (1) in a sliding mode.

2. An optical axis mounting structure as claimed in claim 1, wherein both ends of the card slot (31) are provided with openings (32) through which the optical axis (1) passes.

3. An optical axis mounting structure according to claim 2, wherein both ends of the engaging groove (31) abut against both end faces of the linear bearing (2), respectively.

4. The optical axis mounting structure according to claim 3, wherein at least a pair of protruding catches (33) are symmetrically provided on both side wall surfaces of the catch groove (31), and the catches (33) engage with an outer peripheral surface of the linear bearing (2).

5. An optical axis mounting arrangement as claimed in claim 4, characterised in that the distance between each pair of catches (33) is less than the outer diameter of the linear bearing (2).

6. A 3D printer comprising the optical axis mounting structure according to any one of claims 1 to 5.

7. The 3D printer according to claim 6, further comprising a base (10), a printing platform (20) disposed on the base (10), a Y-axis belt driving assembly for driving the printing platform (20) to move along a Y direction, a printing nozzle (30) disposed above the printing platform (20), an X-axis belt driving assembly for driving the printing nozzle (30) to move along an X direction, and a Z-axis driving assembly for driving the X-axis belt driving assembly and the printing nozzle (30) to move along a Z direction; the printing platform is characterized in that at least one optical axis mounting structure is arranged on the base (10), the printing platform (20) is fixed on the card bearing assembly (3), and the card bearing assembly (3) is in transmission connection with the Y-axis belt driving assembly.

8. The 3D printer according to claim 7, wherein the Y-axis belt driving assembly comprises a Y-axis belt (40) rotatably disposed on the base (10) and a first motor (50) in transmission connection with the Y-axis belt (40), the optical axis (1) is disposed parallel to the Y-axis belt (40), and the card bearing assembly (3) is fixedly connected with the Y-axis belt (40).

9. The 3D printer according to claim 8, further comprising a strap assembly (60), wherein the strap assembly (60) is fixed to the card bearing assembly (3), and wherein the strap assembly (60) is fixedly connected to the Y-axis strap (40).

10. The 3D printer according to claim 9, wherein the belt clamping assembly (60) is provided with at least one clamping opening (601) for clamping the Y-axis belt (40).