AB shaft structure of 3d printer
By fixing the idler pulley with an open structure and screw-connected single fixing plate, the problem of complex idler pulley assembly in the prior art is solved, thereby improving the installation efficiency of the timing belt and the stability of the equipment.
Patent Information
- Application Number
- CN202423309939.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-03-20
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing AB axis structure of 3D printers has a complex idler wheel fixing method, which leads to high assembly difficulty, affecting production efficiency and maintenance difficulty.
The open structure is adopted, and the idler pulley is stably fixed by a single fixing plate and screw connection. The timing belt tension is adjusted by adjusting screws and fixed with fastening screws, which simplifies the installation and maintenance of timing belt.
It improves the installation efficiency of synchronous belts and the stability of equipment operation, simplifies the production and maintenance process, and ensures that the idler pulley does not loosen during high-speed movement.
Smart Images

Figure CN224012982U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of AB axis structure of 3D printers, specifically, it relates to an AB axis structure of a 3D printer. Background Technology
[0002] As 3D printers continue to develop, the market demand for printing speed is increasing. Moreover, most high-speed 3D printers adopt a core XY structure, and the AB axis structure is the core part of the core XY. Therefore, the AB axis structure, which is simple in structure, easy to install, highly accurate and stable in operation, has become particularly important.
[0003] Most printers with a core XY structure on the market use two fixing plates to fix the idler wheel, which increases the difficulty of assembly and affects the installation of the timing belt, thus having a significant impact on production efficiency and later maintenance. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an AB axis structure for a 3D printer, which solves the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:
[0006] A 3D printer AB axis structure includes: a first profile, a first synchronous belt adjustment assembly mounted at the rear end of the first profile, a first motor assembly connected to the front end of the first profile, a second profile connected to the left side of the first motor assembly, a second motor assembly connected to the left end of the second profile, a third profile connected to the left side of the second motor assembly, a second synchronous belt adjustment assembly mounted at the rear end of the third profile, a first sliding assembly mounted on the lower side of the first profile, a second sliding assembly mounted on the lower side of the third profile, a fourth profile installed between the first and second sliding assemblies, a sixth positioning pin and an eighth screw provided at the connection between the left end of the fourth profile and the second sliding assembly, a sliding plate provided at the rear side of the fourth profile, a synchronous belt mounted on the rear side of the sliding plate, a synchronous belt fixing member provided at the rear side of the synchronous belt, a motor located at the lower end of the first and second motor assemblies, a fixing plate located above the motor, a synchronous pulley mounted on the upper end of the fixing plate, and the synchronous pulley... A screw is installed in the middle cavity of the synchronous belt. A first isolating member is provided on the right side of the synchronous pulley. A first idler wheel is provided on the upper side of the first isolating member. A second isolating member is provided on the upper end of the first idler wheel. A second idler wheel is provided on the upper side of the second isolating member. A first large screw is installed in the cavity of the first and second idler wheels. A fourth isolating member is provided on the front side of the synchronous pulley. A fourth idler wheel is provided on the upper side of the fourth isolating member. A third isolating member is provided on the upper end of the fourth idler wheel. A third idler wheel is provided on the upper side of the third isolating member. A second large screw is installed in the cavity of the third and fourth idler wheels. A fixed base plate is provided at the bottom of the first and second synchronous belt adjusting components. An idler wheel is provided on the upper side of the fixed base plate. An idler wheel fixing member is installed on the front side of the idler wheel. A large screw is installed in the cavity of the idler wheel. A fixed top cover is installed on the upper side of the fixed base plate. A first screw and a washer are provided at the connection between the fixed base plate and the fixed top cover. An adjusting screw is installed in the middle of the right end of the fixed top cover.
[0007] Optionally, the first synchronous belt adjustment assembly is detachably connected to the first profile by screws, the first motor assembly connects the first profile to the second profile by screws and positioning pins, the second motor assembly connects the second profile to the third profile by screws and positioning pins, and the second synchronous belt adjustment assembly is detachably connected to the third profile by screws.
[0008] Optionally, the first sliding component can slide down the first profile, the second sliding component can slide down the third profile, and both the first and second sliding components are connected to the fourth profile, thereby enabling the fourth profile to move back and forth.
[0009] Optionally, the timing belt fixing member positions the timing belt on the sliding plate, which can slide left and right on the rear side of the fourth profile.
[0010] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:
[0011] 1. Due to the single fixed plate and open structure, the installation efficiency of the timing belt is greatly improved, making production efficiency and subsequent maintenance very convenient. The timing belt is adjusted by adjusting the screws, and after adjustment, it is secured by fastening screws on the side, which greatly improves stability and prevents it from loosening due to high-speed movement, further enhancing the operational stability of the equipment.
[0012] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0013] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This utility model relates to a structural motor assembly;
[0016] Figure 3 This utility model relates to a synchronous belt adjustment component.
[0017] The attached diagram lists the components represented by each number as follows:
[0018] First synchronous belt adjusting assembly 1; First screw 2; Second screw 3; First sliding assembly 4; First positioning pin 5; Third screw 6; First profile 7; Fourth screw 8; Second positioning pin 9; First motor assembly 10; Third positioning pin 11; Fifth screw 12; Second profile 13; Fourth positioning pin 14; Sixth screw 15; Second motor assembly 16; Fifth positioning pin 17; Seventh screw 18; Third profile 19; Sixth positioning pin 20; Eighth screw 21; Second sliding assembly 22; Ninth screw 23; Second synchronous belt adjusting assembly 24; Tenth screw 25; Eleventh screw 26; Twelfth screw 27; Synchronous belt fixing component 28; Synchronous belt 29; Sliding plate 30; Fourth profile 31.
[0019] Motor 01; Fixing plate 02; Synchronous pulley 03; Screw 04; First isolator 05; First idler wheel 06; Second isolator 07; Second idler wheel 08; First locking screw 09; Second locking screw 010; Third idler wheel 011; Third isolator 012; Screw 013; Fourth idler wheel 014; Fourth isolator 015.
[0020] Fixed base plate 001; idler wheel 002; first screw 003; washer 004; idler wheel fixing part 005; plug screw 006; adjusting screw 007; fixed top cover 008; second screw 009.
[0021] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings.
[0023] Please see Figure 1-3 As shown, this embodiment provides a 3D printer AB axis structure, including a first profile 7.
[0024] One application of this embodiment is as follows: a first synchronous belt adjustment assembly 1 is installed at the rear end of the first profile 7; a first motor assembly 10 is connected to the front end of the first profile 7; a second profile 13 is connected to the left side of the first motor assembly 10; a second motor assembly 16 is connected to the left end of the second profile 13; a third profile 19 is connected to the left side of the second motor assembly 16; a second synchronous belt adjustment assembly 24 is installed at the rear end of the third profile 19; a first sliding assembly 4 is installed on the lower side of the first profile 7; a second sliding assembly 22 is installed on the lower side of the third profile 19; the first sliding assembly 4 and the second sliding assembly 24... A fourth profile 31 is installed between components 22. A sixth positioning pin 20 and an eighth screw 21 are provided at the connection between the left end of the fourth profile 31 and the second sliding assembly 22. A sliding plate 30 is provided on the rear side of the fourth profile 31. A synchronous belt 29 is installed on the rear side of the sliding plate 30. A synchronous belt fixing component 28 is provided on the rear side of the synchronous belt 29. A motor 01 is provided at the lower end of the first motor assembly 10 and the second motor assembly 16. A fixing plate 02 is provided on the upper side of the motor 01. A synchronous pulley 03 is installed on the upper end of the fixing plate 02. A screw 04 is installed in the inner cavity of the middle section of the synchronous pulley 03. A screw 04 is installed on the right side of the synchronous pulley 03. A first isolating member 05 is provided on the side, a first idler wheel 06 is provided on the upper side of the first isolating member 05, a second isolating member 07 is provided on the upper end of the first idler wheel 06, a second idler wheel 08 is provided on the upper side of the second isolating member 07, a first plug screw 09 is installed in the inner cavity of the first idler wheel 06 and the second idler wheel 08, a fourth isolating member 015 is provided on the front side of the synchronous pulley 03, a fourth idler wheel 014 is provided on the upper side of the fourth isolating member 015, a third isolating member 012 is provided on the upper end of the fourth idler wheel 014, a third idler wheel 011 is provided on the upper side of the third isolating member 012, and a third idler wheel 011 is provided on the upper side of the third isolating member 012. The inner cavity of the fourth idler pulley 014 is fitted with a second locking screw 010. A fixed base plate 001 is located at the bottom of the first synchronous belt adjusting assembly 1 and the second synchronous belt adjusting assembly 24. An idler pulley 002 is located on the upper side of the fixed base plate 001. An idler pulley fixing component 005 is installed on the front side of the idler pulley 002. A locking screw 006 is located inside the inner cavity of the idler pulley 002. A fixed top cover 008 is installed on the upper side of the fixed base plate 001. A first screw 003 and a washer 004 are located at the connection between the fixed base plate 001 and the fixed top cover 008. An adjusting screw 007 is installed in the middle of the right end of the fixed top cover 008. It should be noted that all electrical equipment involved in this application can be powered by a battery or an external power source.
[0025] like Figure 1As shown in this embodiment, the first synchronous belt adjustment assembly 1 is detachably connected to the first profile 7 by screws, the first motor assembly 10 connects the first profile 7 to the second profile 13 by screws and positioning pins, the second motor assembly 16 connects the second profile 13 to the third profile 19 by screws and positioning pins, and the second synchronous belt adjustment assembly 24 is detachably connected to the third profile 7 by screws.
[0026] like Figure 1 As shown in this embodiment, the first sliding component 4 can slide under the first profile 7, and the second sliding component 22 can slide under the third profile 19. Both the first sliding component 4 and the second sliding component are connected to the fourth profile 31, enabling the fourth profile 31 to move back and forth.
[0027] like Figure 1 As shown in this embodiment, the timing belt fixing member 28 brings the timing belt 29 to a position on the sliding plate 30, which can slide left and right on the rear side of the fourth profile 31.
[0028] Example 1:
[0029] In this embodiment, a single-layer fixing plate 001, a first locking screw 09, and a second locking screw 010 are used to fix the first idler wheel 06, the second idler wheel 08, the third idler wheel 011, and the fourth idler wheel 014 onto the fixing plate 02. A first isolation member 05, a second isolation member 07, a third isolation member 012, and a fourth isolation member 015 are provided between the idler wheels. After the locking screws are tightened, the idler wheels will not be crushed, ensuring smooth rotation. Because there is only a single fixing plate, it is an open structure, which greatly improves the efficiency of subsequent synchronous belt installation, making production efficiency and later maintenance very convenient. The synchronous belt tension is adjusted by adjusting screw 007, and after adjustment, it is secured by a side fastening screw, greatly improving stability and preventing loosening due to high-speed movement, further enhancing the operational stability of the equipment.
[0030] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.
Claims
1. A 3D printer AB axis structure, characterized in that, include: A first profile (7) is provided with a first synchronous belt adjustment assembly (1) installed at its rear end. A first motor assembly (10) is connected to the front end of the first profile (7). A second profile (13) is connected to the left side of the first motor assembly (10). A second motor assembly (16) is connected to the left end of the second profile (13). A third profile (19) is connected to the left side of the second motor assembly (16). A second synchronous belt adjustment assembly (24) is installed at the rear end of the third profile (19). A first synchronous belt adjustment assembly (24) is installed on the lower side of the first profile (7). A sliding assembly (4) is provided. A second sliding assembly (22) is installed on the lower side of the third profile (19). A fourth profile (31) is installed between the first sliding assembly (4) and the second sliding assembly (22). A sixth positioning pin (20) and an eighth screw (21) are provided at the connection between the left end of the fourth profile (31) and the second sliding assembly (22). A sliding plate (30) is provided on the rear side of the fourth profile (31). A timing belt (29) is installed on the rear side of the sliding plate (30). A timing belt fixing member (28) is provided on the rear side of the timing belt (29).
2. The AB axis structure of a 3D printer according to claim 1, characterized in that, The first synchronous belt adjustment assembly (1) and the first profile (7) are detachably connected by screws. The first motor assembly (10) connects the first profile (7) and the second profile (13) by screws and positioning pins. The second motor assembly (16) connects the second profile (13) and the third profile (19) by screws and positioning pins. The second synchronous belt adjustment assembly (24) and the third profile (19) are detachably connected by screws.
3. The AB axis structure of a 3D printer according to claim 1, characterized in that, The first sliding component (4) can slide under the first profile (7), and the second sliding component (22) can slide under the third profile (19). Both the first sliding component (4) and the second sliding component are connected to the fourth profile (31).
4. The AB axis structure of a 3D printer according to claim 1, characterized in that, The timing belt fastener (28) positions the timing belt (29) on the sliding plate (30).
5. The AB axis structure of a 3D printer according to claim 1, characterized in that, The lower end of the first motor assembly (10) and the second motor assembly (16) is provided with a motor (01), the upper side of the motor (01) is provided with a fixing plate (02), the upper end of the fixing plate (02) is provided with a synchronous pulley (03), the middle inner cavity of the synchronous pulley (03) is provided with a screw (04), the right side of the synchronous pulley (03) is provided with a first isolation member (05), and the upper side of the first isolation member (05) is provided with a first idler wheel (06).
6. The AB axis structure of a 3D printer according to claim 5, characterized in that, The upper end of the first idler wheel (06) is provided with a second isolation member (07), and the upper side of the second isolation member (07) is provided with a second idler wheel (08). The inner cavity of the first idler wheel (06) and the second idler wheel (08) is installed with a first plug screw (09). The front side of the synchronous pulley (03) is provided with a fourth isolation member (015), the upper side of the fourth isolation member (015) is provided with a fourth idler wheel (014), the upper end of the fourth idler wheel (014) is provided with a third isolation member (012), the upper side of the third isolation member (012) is provided with a third idler wheel (011), and the inner cavity of the third idler wheel (011) and the fourth idler wheel (014) is installed with a second plug screw (010).
7. The AB axis structure of a 3D printer according to claim 1, characterized in that, The bottom of the first synchronous belt adjustment assembly (1) and the second synchronous belt adjustment assembly (24) is provided with a fixed base plate (001). An idler wheel (002) is provided on the upper side of the fixed base plate (001). An idler wheel fixing piece (005) is installed on the front side of the idler wheel (002). A plug screw (006) is provided in the inner cavity of the idler wheel (002). A fixed cover (008) is installed on the upper side of the fixed base plate (001). A first screw (003) and a washer (004) are provided at the connection between the fixed base plate (001) and the fixed cover (008). An adjustment screw (007) is installed in the middle of the right end of the fixed cover (008).