Support, device thereof and machine tool
By designing a multi-body bracket to change the direction of the optical fiber and transform its twisting motion into bending motion, the problem of low torsion resistance of optical fibers in five-axis processing is solved, and the adaptability and processing efficiency of large-angle slewing motion are improved.
Patent Information
- Application Number
- CN202420684400.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-06
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-04-06
AI Technical Summary
The prior art limits the control range of the laser beam pointing angle in five-axis machining, and the optical fiber resistance to torsion is not high, resulting in limited rotation angle of the laser emitter, which cannot meet the processing requirements under complex working conditions, significantly reducing processing efficiency.
A bracket is designed to change the direction of the optical fiber through the layout of multiple frames and relay, transforming its forced twisting motion into bent or translational motion, thereby adapting to large-angle slewing motion.
It realizes stable commutation and bending of the optical fiber in three-dimensional space, adapts to large-angle slewing motion, avoids twisting and twisting of the optical fiber, and improves the efficiency and machining range of five-axis machining.
Smart Images
Figure CN222661001U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a device for providing support to facilitate the fixing of an object, in particular to an object for supporting a linear product to avoid winding or breaking during the rotary motion, and a device and a machine tool thereof. Background Art
[0002] Lasers have been used as a tool replacement in many industrial production fields, such as five-axis machine tools equipped with fiber lasers.
[0003] Fiber lasers include a laser transmitter and a laser generator, which are connected by optical fiber. In a five-axis machine tool, the length of the optical fiber depends on the installation position of the laser transmitter and the laser generator.
[0004] In order to better implement five-axis machining, it is necessary to control the pointing angle of the light beam. Existing technologies include control through galvanometer systems, rotary cutting systems or fast-reflection mirror systems. Generally speaking, the range of beam pointing angle change (rotation) that can be achieved by these technologies does not exceed ±25°, which limits the application scope of five-axis machining.
[0005] Another technical solution is: in a five-axis machine tool, the laser transmitter is placed on the turntable through the center of the turntable. It will rotate with the turntable, that is, it will rotate. This technical solution can also control the angle of the laser beam, but the laser transmitter rotating with the turntable is equivalent to rotating on its own, which will cause the optical fiber connected to it to twist or twist. Since the optical fiber has low torsion resistance, this problem limits the rotation angle of the laser transmitter and cannot meet the processing requirements under complex working conditions, or requires the processing trajectory to be disassembled, which significantly reduces the processing efficiency. Utility Model Content
[0006] One object of the utility model is to provide a bracket to provide support for linear objects, especially objects that are not resistant to torsion, such as optical fibers, to avoid twisting or torsion.
[0007] Another object of the present invention is to provide a bracket that provides support for linear objects, especially objects with low torsion resistance, such as optical fibers, to facilitate rotary machine processing.
[0008] A bracket, comprising:
[0009] A first frame body connected to the rotary mechanism and driven by the rotary mechanism;
[0010] A second frame, one end of which is connected to the first frame, guiding the linear object to be arranged along a first direction;
[0011] A third frame, one end of which is connected to the other end of the second frame, and transforms the linear object from being arranged along the first direction to being arranged along the second direction;
[0012] A fourth frame, one end of which is connected to the third frame, and guides the linear object to be arranged along the second direction;
[0013] The fifth frame has one end connected to the other end of the fourth frame, and guides the linear object to change from being arranged along the second direction to being arranged along the third direction, and the trajectory of the third direction is an arc (for example, a circular arc).
[0014] In a specific implementation manner of the utility model, the linear object is transformed from being arranged in a first direction to being arranged in a second direction within a first plane.
[0015] In another specific implementation manner of the utility model, the linear object is transformed from being arranged in the second direction to being arranged in the third direction within the second plane.
[0016] In another specific implementation of the utility model, the linear object is transformed from a first direction to a second direction in a first plane, and the linear object is transformed from a first direction to a second direction in a second plane, and the intersection angle between the first plane and the second plane is 90°±45°.
[0017] In another specific implementation manner of the present invention, the linear objects are arranged along the second direction, and the horizontal positions of the linear objects are gradually increased.
[0018] In another specific implementation manner of the utility model, the second frame is in a plate shape.
[0019] In another specific implementation manner of the utility model, the second frame is in the form of a plate, and the plate surface faces the linear object.
[0020] In another specific implementation manner of the utility model, the third frame is also used to guide the linear object to bend.
[0021] In another specific implementation manner of the utility model, the third frame includes an arc surface or a fan-shaped surface facing the linear object to guide the linear object to bend.
[0022] In another specific implementation manner of the utility model, the third frame includes an arc surface, and the radius of curvature is greater than or equal to 50 mm.
[0023] In another specific implementation manner of the utility model, the fifth frame includes a fan-shaped ring surface to guide the linear object to be arranged along an arc, so that the horizontal position of the linear object is gradually improved.
[0024] In another specific implementation manner of the utility model, the first frame is disposed on an end surface of the rotary mechanism.
[0025] In another specific implementation manner of the utility model, the linear object is an optical fiber.
[0026] Another bracket also includes a first auxiliary frame, one end of which is connected to the fifth frame and is an extension of the fifth frame, so that the horizontal position of the linear object is gradually lowered.
[0027] In another specific implementation of the utility model, the first auxiliary frame has the same curvature radius as the fifth frame, and is deflected downward from a high position so that the horizontal position of the linear object is gradually lowered, and the end of the deflection is higher than the end where the fifth frame is connected to the fourth frame.
[0028] Another bracket also includes a second auxiliary frame, which is used to regulate the linear objects to continue to be arranged in the second direction when the horizontal position is gradually increased when the linear objects are arranged in the second direction. For example, one end of the second auxiliary frame is installed on the end surface of the rotating mechanism, and the other end is assembled with the fourth frame.
[0029] The bracket of the utility model converts the twisting motion of the object into the bending motion (such as bending in a circular arc) of the object, thereby adapting to large-angle rotational motion, which is conducive to meeting the needs of implementing rotational motion parts or mechanisms, such as 3-axis, 4-axis or 5-axis processing machine tools.
[0030] A device comprises a slewing mechanism and a bracket.
[0031] A machine tool comprises a rotary mechanism and a bracket.
[0032] Another machine tool includes a laser transmitter, a rotary mechanism, a bracket and an optical fiber. The laser transmitter is driven to rotate by the rotary mechanism, the bracket is driven to rotate by the rotary mechanism, and the optical fiber is placed on the bracket, one end of which is connected to the laser transmitter.
[0033] Beneficial effects achieved by the technical solution of the utility model:
[0034] The bracket of the utility model fixes and guides an object that is not resistant to torsion (such as an optical fiber) to change direction in three-dimensional space. By performing at least two two-dimensional bends in at least two non-coplanar spatial planes, the forced torsional motion of the object that is not resistant to torsion is converted into a non-torsional motion, such as bending or translation (i.e., an increase or decrease in the radius of the circular arc bending, and a movement of the bending position), thereby adapting to large-angle rotational motion. The object that is not resistant to torsion can still work normally, and can be applied to devices that need to implement rotational motion.
[0035] The bracket of the utility model is assembled on a mechanism that implements rotary motion, such as the rotary axis of a machine tool, and is adapted to the processing requirements of a laser transmitter driven by the rotary mechanism, thereby improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] Figure 1 This is a schematic structural diagram of an embodiment of the bracket of the utility model;
[0037] Figure 2 for Figure 1 A schematic diagram of the structure of the bracket at another angle;
[0038] Figure 3 It is a structural schematic diagram of an embodiment of the assembly of the bracket and the rotating mechanism of the utility model. DETAILED DESCRIPTION
[0039] The technical solution of the utility model is described in detail below with reference to the accompanying drawings. The embodiments of the utility model are only used to illustrate the technical solution of the utility model but not to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
[0040] Figure 1 This is a schematic diagram of the structure of an embodiment of the bracket of the utility model. Figure 2 for Figure 1 The structural diagram of the bracket at another angle is shown. Figure 1 and Figure 2 As shown, the bracket of this embodiment includes a first frame 10, a second frame 20, a third frame 30, a fourth frame 40 and a fifth frame 50. The first frame 10 is used to be connected to the rotating mechanism and driven by the rotating mechanism. One end of the second frame 20 is connected to the first frame 10, and is used to guide the linear object to be arranged along the first direction. One end of the third frame 30 is connected to the other end of the second frame 20, and the linear object is changed from being arranged along the first direction to being arranged in the second direction. One end of the fourth frame 40 is connected to the third frame 30, and the linear object is guided to be arranged along the second direction. The fifth frame 50 is connected to the other end of the fourth frame 40, and the linear object is changed from being arranged along the second direction to being arranged in the third direction.
[0041] In this embodiment, the first direction is the X-axis of the three-dimensional coordinate system, and the second direction is the Z-axis of the three-dimensional coordinate system. The linear object is transformed from the first direction to the second direction in the first plane, that is, the plane formed by the intersection of the X-axis and the Z-axis. At this time, the linear object is arranged along the second direction, and the horizontal position of the linear object is gradually increased.
[0042] The third direction system simultaneously changes the Z axis and Y axis of the three-dimensional coordinate system to form an arc trajectory, such as an arc shape. At this time, the linear object is guided to be arranged along the arc, so that the horizontal position of the linear object is gradually increased. The linear object is transformed from the second direction arrangement to the third direction in the second plane, that is, the plane formed by the intersection of the Z axis and the Y axis, and the intersection angle between the first plane and the second plane is 90°±45°.
[0043] In order to improve the adaptability to the rotational motion, the bracket of this embodiment further includes a first auxiliary frame 60, one end of which is connected to the fifth frame 50 and is an extension of the fifth frame 50, so that the horizontal position of the linear object is gradually lowered from a high position. Its curvature radius is the same as the curvature radius of the fifth frame 50, for example: the linear object is guided to continue to deflect along the extension direction of the bracket, so that the horizontal position is gradually lowered from a high position. The deflected end of the first auxiliary frame 60 is higher than the end of the fifth frame connected to the fourth frame.
[0044] When the linear objects are arranged along the second direction, the horizontal position is gradually increased. In order to regulate the linear objects to continue to be arranged along the second direction, the bracket of this embodiment also includes a second auxiliary frame 70, one end of which is installed on the end surface of the rotating mechanism, and the other end is assembled with the fourth frame 40.
[0045] The bracket of this embodiment, through the layout of several frames, can change the direction of objects that are not resistant to torsion (such as optical fibers) in a relay manner, so that the twisting motion is converted into the bending motion of the object (such as increasing or decreasing the radius of the circular arc bending) to adapt to large-angle rotational motion. The objects that are not resistant to torsion can still work normally, and can be used in devices that need to implement rotational motion.
[0046] Figure 3 This is a schematic diagram of the structure of an embodiment of the assembly of the bracket and the rotating mechanism of the utility model. Figure 1 and Figure 2 ,like Figure 3 As shown, the bracket of this embodiment includes a first frame 100, a second frame 200, a third frame 300, a fourth frame 400 and a fifth frame 500. The first frame 100 is mounted on the end surface of the rotating mechanism 80 and is driven to rotate by the rotating mechanism. One end of the linear object, the optical fiber 91, is connected to the laser emitter 92, and the laser emitter 92 is driven to rotate by the rotating mechanism.
[0047] The second frame 200 is a plate-shaped frame, one end of which is connected to the first frame 10, the plate surface faces the optical fiber, and guides the optical fiber to be arranged along the first direction (i.e., the X-axis of the three-dimensional coordinate system). One end of the third frame 300 is connected to the other end of the second frame 200, including an arc surface (whose curvature radius is greater than or equal to 50 mm) or a fan ring surface, the arc surface or the fan ring surface faces the optical fiber, guides the optical fiber to bend, and transforms the optical fiber from the first direction to the second direction (i.e., the Z-axis of the three-dimensional coordinate system). One end of the fourth frame 400 is connected to the third frame 300, and guides the optical fiber to be arranged along the second direction. At this time, the horizontal position of the optical fiber is gradually increased. In order to regulate the optical fiber to continue to be arranged along the second direction and prevent the optical fiber from falling off or deviating from the bracket during the rotation process, a second auxiliary frame 700 is also used, one end of which is installed on the end surface of the rotating mechanism 80, and the other end is assembled with the fourth frame 400.
[0048] One end of the fifth frame 500 is connected to the other end of the fourth frame 400, and includes a fan ring surface, which guides the optical fiber to change from being arranged along the second direction to the third direction (that is, the Z axis and Y axis of the three-dimensional coordinate system change simultaneously to form an arc trajectory). At this time, the optical fiber is arranged along the arc trajectory, and the horizontal position is further gradually improved. A first auxiliary frame 600 is set at the extension of the other end of the fifth frame 500, and the curvature radius is the same as the curvature radius of the fifth frame 500, which guides the optical fiber to continue to deflect along the natural bending radius, so that the horizontal position of the optical fiber can be gradually reduced from a high position to improve the adaptability to the rotational motion.
[0049] When the rotary mechanism (e.g., the rotary axis of a machine tool) equipped with the bracket of this embodiment is used to implement laser processing in a rotary manner, it can meet the processing requirements of the laser transmitter driven by the rotary mechanism, and the phenomenon of twisting or kinking of the optical fiber no longer occurs. Instead, the bending radius of the arc-shaped (e.g., circular arc) trajectory increases or decreases, thereby meeting the working conditions for processing in a rotary manner, simplifying the steps and links required for processing, reducing the restrictions of the optical fiber on the rotation range of the turntable, and increasing the processable range and flexibility. Compared with the 30-degree rotation range of the turntable with the same layout but without the bracket of this embodiment, the rotation range of the turntable with the same layout after adopting the bracket of this embodiment can reach more than 180 degrees, which can not only meet the needs of five-axis processing, but also far exceeds the maximum beam deflection angle range of the galvanometer system and the rotary cutting system.
Claims
1. A bracket, characterized in that include: A first frame body connected to the rotary mechanism and driven by the rotary mechanism; A second frame, one end of which is connected to the first frame, guiding the linear object to be arranged along a first direction; A third frame, one end of which is connected to the other end of the second frame, and transforms the linear object from being arranged along the first direction to being arranged along the second direction; A fourth frame, one end of which is connected to the third frame, and guides the linear object to be arranged along the second direction; A fifth frame, one end of which is connected to the other end of the fourth frame, and guides the linear object to change from being arranged along the second direction to being arranged along the third direction; The third direction trajectory is an arc.
2. The bracket according to claim 1, characterized in that The linear object is transformed from being arranged in a first direction to being arranged in a second direction within a first plane.
3. The bracket according to claim 1, characterized in that The linear object is transformed from being arranged in the second direction to being arranged in the third direction within the second plane.
4. The bracket according to claim 3, characterized in that The linear object is transformed from a first direction to a second direction in a first plane, and the intersection angle between the first plane and the second plane is 90°±45°.
5. The bracket according to claim 1, characterized in that The linear objects are arranged along the second direction, and the horizontal positions of the linear objects are gradually increased.
6. The bracket according to claim 1, characterized in that The second frame is in the form of a plate, with the plate surface facing the linear object.
7. The bracket according to claim 1, characterized in that The third frame is also used to guide the linear object to bend.
8. The bracket according to claim 7, characterized in that The third frame includes an arc surface or a fan ring surface facing the linear object.
9. The bracket according to claim 8, characterized in that The curvature radius of the arc surface is greater than or equal to 50 mm.
10. The bracket according to claim 1, characterized in that The fifth frame comprises a fan-shaped ring surface, which guides the linear object to be arranged along the arc, so that the horizontal position of the linear object is gradually improved.
11. The bracket according to claim 1, characterized in that The first frame is arranged on the end surface of the rotary mechanism.
12. The bracket according to claim 1, characterized in that The linear object is an optical fiber.
13. The bracket according to claim 1, characterized in that It also comprises a first auxiliary frame, one end of which is connected to the fifth frame and is an extension of the fifth frame, so that the horizontal position of the linear object is gradually lowered.
14. The bracket according to claim 13, characterized in that The first auxiliary frame has the same curvature radius as that of the fifth frame, and is deflected downward from a high position, with the end of the deflection being higher than the end portion of the fifth frame connected to the fourth frame.
15. The bracket according to claim 1, characterized in that Also included is a second auxiliary frame, which is used to regulate the linear objects to continue to be arranged along the second direction.
16. The bracket according to claim 15, characterized in that One end of the second auxiliary frame is installed on the end surface of the rotary mechanism, and the other end is assembled with the fourth frame.
17. A device comprising the bracket and the rotating mechanism according to claim 1.
18. A machine tool comprising a slewing mechanism and the bracket according to claim 1.
19. The machine tool according to claim 18, characterized in that It also includes a laser emitter, the linear object is an optical fiber, the laser emitter is driven to rotate by the rotating mechanism, the bracket is driven to rotate by the rotating mechanism, the optical fiber is placed on the bracket, and one end of the optical fiber is connected to the laser emitter.