Laser light path stabilizing device for 3D printing

Abstract

The utility model belongs to the technical field of laser light path stabilization, and particularly relates to a laser light path stabilization device for 3D printing, which comprises a fixing plate, a ball sleeve support fixed at one end of the fixing plate, a ball shaft rotatably connected inside one end of the ball sleeve support, a lens mounting frame fixed at one end of the ball shaft, and a laser reflector fixed at one end of the lens mounting frame. An adjusting extension rod is fixed at the other end of the ball shaft; the rotary adjusting mechanism comprises an annular guide rail, the annular guide rail is fixed to the outer side of the other end of the fixing plate, a circular notch is formed in the middle of the fixing plate and located on the inner side of the annular guide rail, and an arc-shaped guide rail is rotationally connected to the inner side of the annular guide rail. According to the utility model, the laser reflector can be adjusted in a larger range through the connecting structure of the ball shaft, the deflection and rotation of the ball shaft are controlled through the meshing structure of the worm gear and the worm and the gear, and the worm gear and the worm have the self-locking characteristic, so that the deflection of the laser reflector caused by vibration can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to laser light path stable technical field, concretely relates to a laser light path stable device for 3D printing. BACKGROUND

[0002] Laser light path stability is the core technology to ensure the stable operation of laser system, especially in the field of precision machining, 3D printing, etc. Laser light path stability is the core link to ensure printing accuracy. The angle of laser reflecting mirror is fixed by rigid mounting structure. Generally, it does not have the function of adjusting laser reflecting mirror. The mounting structure with the function of adjusting the angle of laser reflecting mirror often only has the function of single direction angle adjustment, which is difficult to meet the demand of multi-angle light path for complex printing path. Moreover, the mounting structure with adjustable laser reflecting mirror often does not have self-locking structure. The vibration of equipment can easily change the deflection angle of laser reflecting mirror, which needs frequent calibration. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a laser light path stable device for 3D printing, which can adjust the laser reflecting mirror in a larger range through the connecting structure of ball shaft, and control the deflection and rotation of ball shaft through the structure of worm gear and gear meshing. The worm gear has self-locking property, which can avoid the deflection of laser reflecting mirror caused by vibration.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] A laser light path stable device for 3D printing, comprising a fixed plate, one end of the fixed plate is fixed with a ball sleeve support, the inside of one end of the ball sleeve support is rotationally connected with a ball shaft, one end of the ball shaft is fixed with a lens mounting frame, one end of the lens mounting frame is fixed with a laser reflecting mirror, the other end of the ball shaft is fixed with an adjusting extension rod;

[0006] A rotation adjusting mechanism, the rotation adjusting mechanism comprises an annular guide rail, the annular guide rail is fixed outside the other end of the fixed plate, a circular notch is formed in the middle of the fixed plate and inside the annular guide rail, the inside of the annular guide rail is rotationally connected with an arc guide rail;

[0007] A deflection adjusting mechanism, the deflection adjusting mechanism comprises an angle offset frame, one end of the angle offset frame is fixed with the adjusting extension rod, the other end of the angle offset frame is slidingly connected with the arc guide rail.

[0008] Further, one end inside the angle offset frame is rotationally connected with a second gear, the inside of the arc guide rail is provided with a second transmission tooth, the second gear is meshingly connected with the second transmission tooth;

[0009] The other end of the angle offset frame is rotationally connected with a third gear, the third gear is in meshing connection with the second gear, the top of the third gear is fixed with a second worm wheel, one end of a second knob in the inside of the angle offset frame is rotationally connected with a second worm, and the second worm is in meshing connection with the second worm wheel.

[0010] Further, the top of the angle offset frame is threadedly connected with a second locking bolt, and the bottom of the second locking bolt is tightly attached to the surface of the arc-shaped guide rail when the second locking bolt is tightened.

[0011] Further, the inside of one end of the arc-shaped guide rail is rotationally connected with a first gear, the inside of the arc-shaped guide rail is provided with a first transmission tooth, the first gear is in meshing connection with the first transmission tooth, one end of the first gear is fixed with a first worm wheel, and the side of the first worm wheel is in meshing connection with a first worm.

[0012] Further, the side of both ends of the arc-shaped guide rail is threadedly connected with a first locking bolt, and one end of the first locking bolt is tightly attached to the surface of the arc-shaped guide rail when the first locking bolt is tightened.

[0013] The utility model discloses the technical effect achieved is:

[0014] The utility model discloses provide fine adjustment ability through worm wheel and worm drive, realize the accurate control to laser reflector deflection and rotation with the meshing drive of gear, and realize double fixing through the self -locking characteristic and the mechanical locking of first locking bolt and second locking bolt, avoid the deviation caused by vibration in the printing process, ensure the stability of optical path.

[0015] The utility model discloses the deflection adjustment of angle offset frame and the synergistic effect of rotation adjustment of arc-shaped guide rail, make laser reflector can carry out more reverse adjustment, can adapt to complex 3D printing path demand, reduce the frequency of recalibration, improve efficiency. ACCURACY

[0016] Figure 1 It is the structure schematic drawing of one side of the utility model;

[0017] Figure 2 It is the structure schematic drawing of the other side of the utility model;

[0018] Figure 3 It is the explosion drawing of laser reflector mounting structure of the utility model;

[0019] Figure 4 It is the cross section structure schematic drawing of rotation adjustment mechanism of the utility model;

[0020] Figure 5 The utility model discloses Figure 4 The structure enlarged view of B in the middle.

[0021] Figure 6 The utility model discloses arc -shaped guide rail and deflection adjusting mechanism connects the cross section structure schematic diagram of the utility model.

[0022] Figure 7 The utility model discloses Figure 6 The structure enlarged view of B in the middle.

[0023] In the drawing, the component list that each sign represents is as follows:

[0024] 1, fixed plate, 2, rotation adjusting mechanism, 3, deflection adjusting mechanism, 11, ball sleeve support, 12, ball shaft, 13, lens mounting frame, 14, laser reflector, 15, adjusting extension rod, 21, annular guide rail, 22, first transmission tooth, 23, arc -shaped guide rail, 24, first locking bolt, 25, first gear, 26, first worm wheel, 27, first worm, 28, first knob, 31, angle offset frame, 32, second gear, 33, third gear, 34, second worm wheel, 35, second worm, 36, second locking bolt, 37, second knob, 38, second transmission tooth. Specific implementation

[0025] In order to make the purpose and the advantage of the utility model more clearly clear, the utility model is specifically explained below with examples. It should be understood that the following text is only used to describe one or several specific implementation modes of the utility model, and does not strictly limit the protection scope of the utility model specifically requested.

[0026] As Figures 1 to 7 Shown, a kind of laser light path stable device for 3D printing, including fixed plate 1, one end of fixed plate 1 is fixed with ball sleeve support 11, the inside rotation of one end of ball sleeve support 11 is connected with ball shaft 12, one end of ball shaft 12 is fixed with lens mounting frame 13, one end of lens mounting frame 13 is fixed with laser reflector 14, the other end of ball shaft 12 is fixed with adjusting extension rod 15;

[0027] Rotation adjusting mechanism 2, rotation adjusting mechanism 2 includes annular guide rail 21, annular guide rail 21 is fixed on the outside of the other end of fixed plate 1, the middle part of fixed plate 1 and located the inside of annular guide rail 21 is set with circular notch, the inside rotation of annular guide rail 21 is connected with arc -shaped guide rail 23;

[0028] Deflection adjusting mechanism 3, deflection adjusting mechanism 3 includes angle offset frame 31, one end of angle offset frame 31 is fixed with adjusting extension rod 15, the other end of angle offset frame 31 is slidably connected with arc -shaped guide rail 23;

[0029] The laser reflector 14 is mounted at one end of the ball sleeve support 11 through the ball shaft 12, and the ball shaft 12 can rotate in any direction inside the ball sleeve support 11, and then the swing of the adjusting extension rod 15 can be controlled to control the deflection angle of the lens mounting frame 13, so as to change the angle of the laser reflector 14 at will. At the same time, the control of the adjusting extension rod 15 is adjusted by sliding the angle offset frame 31 to adjust the position of the angle offset frame 31 on the arc-shaped guide rail 23, so that the ball shaft 12 can rotate at one end of the ball sleeve support 11, thereby driving the laser reflector 14 mounted at one end to change the angle. By rotating the arc-shaped guide rail 23, the ball shaft 12 can be driven to rotate in another direction inside the ball sleeve support 11, so that the laser reflector 14 after deflection can rotate. By bidirectional adjustment and control of the rotation of the ball shaft 12, the angle of the laser reflector 14 can be adjusted in all directions.

[0030] Please refer to Figure 4 、 Figure 6 and Figure 7 , one end of the angle offset frame 31 is rotatably connected with the second gear 32, the inner side of the arc-shaped guide rail 23 is provided with the second transmission tooth 38, and the second gear 32 is meshed with the second transmission tooth 38;

[0031] The other end of the angle offset frame 31 is rotatably connected with the third gear 33, the third gear 33 is meshed with the second gear 32, the top of the third gear 33 is fixed with the second worm wheel 34, one side of the angle offset frame 31 is rotatably connected with the second knob 37, one end of the second knob 37 and inside the angle offset frame 31 is rotatably connected with the second worm 35, and the second worm 35 is meshed with the second worm wheel 34;

[0032] The top of the angle offset frame 31 is threadedly connected with the second locking bolt 36, when the second locking bolt 36 is tightened, the bottom of the second locking bolt 36 tightly abuts the surface of the arc-shaped guide rail 23

[0033] In the above, when the laser reflector 14 is deflected, the second knob 37 is twisted to drive the second worm 35 to rotate, and under the meshing action, the second worm wheel 34 rotates, and drives the angle offset frame 31 fixed thereto to rotate, and the second gear 32 rotates under the meshing transmission, and then the second gear 32 rolls along the second transmission tooth 38 under the meshing transmission, so as to drive the angle offset frame 31 to slide along the arc-shaped guide rail 23, drive the adjusting extension rod 15 to deflect, and change the angle of the laser reflector 14;

[0034] Further, after the angle adjustment is completed, the bottom of the second locking bolt 36 is tightly attached to the surface of the arc-shaped guide rail 23 by rotating the second locking bolt 36, the friction is increased, the position fixation of the angle deviation frame 31 and the arc-shaped guide rail 23 is strengthened, the engagement connection between the second worm wheel 34 and the second worm 35 has a self-locking function, the fixation effect is further enhanced, the position change of the angle deviation frame 31 caused by vibration is avoided, and thus the angle of the laser reflector 14 is changed.

[0035] Please refer to Figure 4 and Figure 5 As shown in the figure, the inner side of one end of the arc-shaped guide rail 23 is rotatably connected with the first gear 25, the inner side of the annular guide rail 21 is provided with the first transmission tooth 22, the first gear 25 is in engagement connection with the first transmission tooth 22, one end of the first gear 25 is fixed with the first worm wheel 26, one side of the first worm wheel 26 is in engagement connection with the first worm 27, and the top of the first worm 27 is fixed with the first knob 28.

[0036] The side of both ends of the arc-shaped guide rail 23 is threadedly connected with the first locking bolt 24, when the first locking bolt 24 is tightened, one end of the first locking bolt 24 is tightly attached to the surface of the annular guide rail 21.

[0037] In the above, the first knob 28 is rotated to drive the first worm 27 to rotate, and the first worm wheel 26 is driven to rotate by engagement to rotate the adjustment extension rod 15 fixed therewith, when the first gear 25 rotates, the first gear 25 can roll on the inner side of the annular guide rail 21 under the action of the first transmission tooth 22, so as to rotate along the annular guide rail 21, and further drive the laser reflector 14 to rotate, and the angle deviation frame 31 changes the angle of the laser reflector 14, which can be used in cooperation to adjust the angle in a larger range.

[0038] Further, after the angle adjustment is completed, the bottom of the second locking bolt 36 is tightly attached to the surface of the arc-shaped guide rail 23 by rotating the second locking bolt 36, the friction is increased, the position fixation of the angle deviation frame 31 and the arc-shaped guide rail 23 is strengthened, the engagement connection between the second worm wheel 34 and the second worm 35 has a self-locking function, the fixation effect is further enhanced, the position change of the angle deviation frame 31 caused by vibration is avoided, and thus the angle of the laser reflector 14 is changed.

[0039] The working principle of the utility model is: laser reflector 14 is connected with the universal rotation of ball sleeve support 11 through ball shaft 12, realizes the deflection of any direction, controls through the swing of extension rod 15 when rotating, controls swing direction of extension rod 15 through the cooperation of deflection adjusting mechanism 3 and rotation adjusting mechanism 2, specifically controls through rotating second knob 37 to drive second worm 35 to rotate and gradually mesh transmission third gear 33 and second gear 32, when second gear 32 rotates, can roll along second transmission tooth 38, makes angular displacement frame 31 slide to push extension rod 15 to deflect, changes the angle of laser reflector 14, after rotating first knob 28, drives first worm 27 to drive first worm wheel 26 and first gear 25 to rotate, when first gear 25 rotates, rolls along first transmission tooth 22, makes arc guide 23 rotate, drives laser reflector 14 to rotate as a whole, further realizes the adjustment of multiple angles, after completing the adjustment, rotates second locking bolt 36 and first locking bolt 24, makes second locking bolt 36 press tightly on the surface of arc guide 23, first locking bolt 24 press tightly on the surface of annular guide 21, realizes the fixation of angular displacement frame 31 and arc guide 23, and combines worm and worm gear to obtain self-locking characteristics to achieve double fixation, prevents displacement caused by vibration.

[0040] The above is only the preferred embodiment of the utility model, it should be pointed out that for the ordinary skill in the art, without departing from the principle of the utility model, can make a number of improvements and refinements, these improvements and refinements should also be considered as the protection scope of the utility model. The structure, device and operation method not specifically described and explained in the utility model, if no special description and limitation, are implemented according to conventional means in the art.

Claims

1. A laser optical path stabilization device for 3D printing, characterized in that: Includes a fixing plate (1), one end of which is fixed with a ball sleeve bracket (11), one end of which is rotatably connected to a ball shaft (12), one end of which is fixed with a lens mounting frame (13), one end of which is fixed with a laser reflector (14), and the other end of which is fixed with an adjustment extension rod (15). The rotary adjustment mechanism (2) includes an annular guide rail (21), which is fixed to the outer side of the other end of the fixed plate (1). A circular notch is provided in the middle of the fixed plate (1) and on the inner side of the annular guide rail (21). An arc-shaped guide rail (23) is rotatably connected to the inner side of the annular guide rail (21). The deflection adjustment mechanism (3) includes an angle offset frame (31), one end of which is fixed to the adjustment extension rod (15), and the other end of which is slidably connected to the arc-shaped guide rail (23).

2. The laser optical path stabilization device for 3D printing according to claim 1, characterized in that: One end of the angle offset frame (31) is rotatably connected to a second gear (32), and the inner side of the arc-shaped guide rail (23) is provided with a second transmission tooth (38), and the second gear (32) and the second transmission tooth (38) are meshed and connected. The other end of the angle offset frame (31) is rotatably connected to a third gear (33), which meshes with a second gear (32). A second worm gear (34) is fixed to the top of the third gear (33). A second knob (37) is rotatably connected to one side of the angle offset frame (31). A second worm (35) is rotatably connected to one end of the second knob (37) and inside the angle offset frame (31). The second worm (35) meshes with the second worm gear (34).

3. The laser optical path stabilization device for 3D printing according to claim 1, characterized in that: The top of the angle offset bracket (31) is threaded with a second locking bolt (36). When the second locking bolt (36) is tightened, the bottom of the second locking bolt (36) is in close contact with the surface of the arc-shaped guide rail (23).

4. The laser optical path stabilization device for 3D printing according to claim 1, characterized in that: The arc-shaped guide rail (23) is internally rotatably connected to a first gear (25), and the inner side of the annular guide rail (21) is provided with a first transmission tooth (22). The first gear (25) is meshed with the first transmission tooth (22). A first worm gear (26) is fixed at one end of the first gear (25), and a first worm (27) is meshed on one side of the first worm gear (26). A first knob (28) is fixed at the top of the first worm (27).

5. A laser optical path stabilization device for 3D printing according to claim 1, characterized in that: One of the two ends of the arc-shaped guide rail (23) is threaded with a first locking bolt (24). When the first locking bolt (24) is tightened, one end of the first locking bolt (24) is in close contact with the surface of the annular guide rail (21).

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