Indexable clamp for laser processing of PCD material gear
The three-axis rotation of the PCD gear is achieved through the indexable clamp, which solves the accuracy and efficiency problems of traditional laser processing equipment in complex tooth processing, and improves the accuracy and efficiency of laser processing of PCD gears.
Patent Information
- Application Number
- CN202510535638.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2025-07-11
AI Technical Summary
When traditional laser processing PCD gears, it is difficult to achieve high-precision processing of complex tooth shapes such as non-standard involute tooth shapes and special spiral tooth shapes, and the existing equipment lacks multi-axis rotation capabilities, resulting in low machining efficiency.
The indexable fixture is adopted to clamp the PCD gear by quickly disassembly and assemble the shovel arm and the motor, combined with the three-axis linkage of the laser processing equipment, the three-axis rotation of the PCD gear is realized, simplifying the laser parameter setting and reducing the difficulty of processing.
The accuracy and efficiency of laser processing PCD gears are improved, the steps of repeated testing of laser parameters are reduced, and the processing difficulty is reduced.
Smart Images
Figure CN120286911A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a clamping device for laser processing, and specifically to a rotatable fixture for laser processing of PCD material gears. Background Art
[0002] In traditional machining, special-shaped grinding wheels are required for gear grinding, and these grinding wheels need to be reversely machined with high-hard gears made of PCD material. When using laser to machine PCD gears, although high-precision gear machining can be achieved, for some complex tooth profiles, such as non-standard involute tooth profiles, special spiral tooth profiles, etc., laser machining may face greater challenges in precision control. Laser machining is based on numerical control programming and precise control of the laser beam, and the programming and control of complex tooth profiles are difficult and prone to errors.
[0003] Existing technologies generally use multi-axis linkage between the laser emission area and the workpiece clamping area in the laser processing equipment. Traditional laser processing equipment generally does not have the multi-axis rotation ability at the clamping position. Instead, it is necessary to establish the "spatial position" between the laser and the workpiece and repeatedly test the laser parameters to avoid mis-cutting. These greatly increase the machining difficulty and affect the machining efficiency. Summary of the Invention
[0004] To solve the defects of the above-mentioned existing technologies, the present invention provides a rotatable fixture for laser processing of PCD material gears. The present invention uses a quick-disassembly shovel-shaped arm and a motor to clamp and fix the PCD gear, greatly simplifies the position parameters of the PCD gear, shortens the time of the entire machining process, no longer requires repeated testing of laser parameters, reduces the machining difficulty, and improves the machining efficiency.
[0005] To achieve the above technical objectives, the present invention adopts the following technical solutions: A rotatable fixture for laser processing of PCD material gears, including a shovel-shaped arm. One end of the shovel-shaped arm is provided with a first connecting portion for connecting a laser processing device, and the other end is provided with a second connecting portion for installing a motor; the motor is connected with an expansion locking ring, and the expansion locking ring is used for positioning and installing a PCD material gear; Wherein, the first connecting portion is driven to rotate by the laser processing device, the PCD material gear is driven to rotate by the motor, and the rotation axis A of the first connecting portion and the rotation axis B of the motor form an angle. Thus, the PCD material gear revolves under the drive of the laser processing device and rotates on its own under the drive of the motor, and cooperates with the rotation movement of the laser processing device itself to achieve three-axis linkage.
[0006] The shovel-shaped arm includes a shovel plate and a shovel handle. The shovel plate and the shovel handle are connected at an obtuse angle. The shovel handle is also fixed with a connecting plate. The shovel plate serves as the first connecting part, and the connecting plate serves as the second connecting part. The connecting plate is connected with a joint for connecting to a laser processing device, and the shovel plate is provided with a motor hole for installing the motor.
[0007] The shovel plate is also provided with a first gap and a second gap. The first gap penetrates the shovel plate in the thickness direction and is communicated with the motor hole, so that the shovel plate is disconnected at the first gap. The second gap penetrates the shovel plate in the thickness direction. One side of the second gap is communicated with the motor hole, and the other side is provided with a circular hole. The shovel plate is also provided with a side locking hole for locking the motor, and the side locking hole is located at the disconnected part.
[0008] The motor hole is a circular hole. The first gap and the second gap are located on the same diameter of the motor hole. The size of the circular hole is larger than that of the second gap.
[0009] The motor is inserted into the motor hole, and a linkage base is fixed to the driving end of the motor. The expansion locking ring is fixed to the linkage base. The center of the linkage base is provided with a slotted hole, and the panel is provided with a first mounting hole and a second mounting hole. The first mounting hole is used for fixedly connecting the driving end of the motor, and the second mounting hole is used for fixedly connecting the expansion locking ring.
[0010] The expansion locking ring includes an outer peripheral plate and a locking ring. The outer peripheral plate is connected to the linkage base. The locking ring can extend into the inner hole of the PCD material gear and lock it. The center of the locking ring is provided with an axial locking hole. The upper part of the axial locking hole is inverted conical, the lower part is cylindrical and provided with internal threads. The upper part of the inverted cone can insert a bolt, and the lower part of the cylinder can lock the bolt and lock the motor.
[0011] The locking ring is provided with a plurality of locking grooves in the radial direction, so that the locking ring is disconnected into a plurality of locking pieces. The plurality of locking pieces are opened by bolts to lock the motor. A relief groove is provided at the bottom of the locking groove.
[0012] The lower part of the axial locking hole penetrates the outer peripheral plate, and the middle part of the axial locking hole is communicated with the relief groove.
[0013] In summary, the present invention has achieved the following technical effects: A shovel-shaped arm is added at the installation port of the laser processing equipment, and a motor is configured at the other end of the shovel-shaped arm to clamp the PCD material gear with the motor. In this way, the laser processing equipment drives the shovel-shaped arm to move along the A axis, and the motor drives the PCD material gear to move along the B axis. Coupled with the rotation of the laser processing equipment itself, a three-axis drive is formed. By controlling the motor parameters and the processing equipment parameters, the gear to be processed can be rotated around the three axes. Compared with the existing solutions, the three-axis control of the present invention is more accurate, without the need to establish the "spatial position" between the laser and the PCD material gear, and there is no need to repeatedly test the laser parameters, reducing the processing difficulty and improving the processing efficiency. Description of the Drawings
[0014] Figure 1 is a indexable fixture for laser processing of PCD material gears; Figure 2 is Figure 1 the side view of Figure 3 is Figure 1 the exploded schematic view of Figure 4 is a schematic view of an angle of the shovel-shaped arm; Figure 5 is a schematic view of another angle of the shovel-shaped arm; Figure 6 is the schematic view of the linkage base; Figure 7 is the schematic view of the expansion locking ring; Figure 8 is Figure 7 the side view of Figure 9 is Figure 8 the sectional schematic view of Detailed Embodiment
[0015] The present invention will be further described in detail below with reference to the accompanying drawings.
[0016] This specific embodiment is only an interpretation of the present invention and does not limit the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.
[0017] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.
[0018] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.
[0019] In the present invention, unless otherwise clearly specified and defined, the terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0020] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.
[0021] Embodiment: Figure 1 It is a indexable fixture for laser machining PCD material gears. Figure 2 It is Figure 1 a side view of Figure 3 It is Figure 1Explosion diagram, including a shovel-shaped arm 1. One end of the shovel-shaped arm 1 is set as a first connecting part for connecting a laser processing device, and the other end is set as a second connecting part for installing a motor 3; the motor 3 is connected with an expansion locking ring 5, and the expansion locking ring 5 is used for positioning and installing a PCD material gear 6; Wherein, the first connecting part is driven by the laser processing device to rotate, the PCD material gear 6 is driven by the motor 3 to rotate, and the rotation axis A of the first connecting part forms an angle with the rotation axis B of the motor 3, so that the PCD material gear 6 revolves under the drive of the laser processing device and rotates on its own under the drive of the motor 3. Combining with the rotation movement of the laser processing device itself, three-axis linkage is realized.
[0022] The present invention provides a shovel-shaped arm, and uses the obtuse angle structure of the shovel-shaped arm to achieve the purpose of occupying less space. The straight or vertical structure occupies a large space. The present invention extremely reduces the space and can be installed and used on the basis of the original equipment. The laser processing device drives the shovel-shaped arm to move along the A axis, the shovel-shaped arm drives the motor 3 to revolve along the B axis, and the motor 3 can rotate on its own to drive the PCD material gear 6 to rotate on its own. Therefore, the PCD material gear 6 can both revolve and rotate on its own, or revolve and rotate at the same time, so as to realize the PCD material gear 6 switching to different positions for laser processing.
[0023] In the existing solution, the laser processing device has an installation port for installing the PCD material gear 6. The laser processing device drives the laser processing device to rotate, and then combines with the rotation of the laser processing device itself (not shown) to form a two-axis drive to switch different positions of the PCD material gear 6 for laser processing. Different from this, the present invention installs a shovel-shaped arm at the installation port of the laser processing device, and configures a motor at the other end of the shovel-shaped arm to clamp the PCD material gear 6 with the motor. In this way, the laser processing device drives the shovel-shaped arm to move along the A axis, the motor drives the PCD material gear 6 to move along the B axis, and then combines with the rotation of the laser processing device itself (not shown) to form a three-axis drive. By controlling the motor parameters and the processing device parameters, the gear to be processed can be rotated around three axes. Compared with the existing solution, the three-axis control of the present invention is more accurate, there is no need to establish the "spatial position" between the laser and the PCD material gear 6, and there is no need to repeatedly test the laser parameters to reduce the processing difficulty and improve the processing efficiency.
[0024] Figure 4 It is a schematic diagram of an angle of the shovel-shaped arm, Figure 5It is a schematic diagram of another angle of the shovel-shaped arm. The shovel-shaped arm 1 includes a shovel plate 11 and a shovel handle 12. The shovel plate 11 is connected to the shovel handle 12 at an obtuse angle. A connecting plate 13 is also fixed to the shovel handle 12. The shovel plate 11 serves as the first connecting portion, and the connecting plate 13 serves as the second connecting portion. The connecting plate 13 is connected to a joint 2 for connection to a laser processing device. The shovel plate 11 is provided with a motor hole 111 for installing the motor 3.
[0025] In this embodiment, the angle between the shovel plate 11 and the shovel handle 12 is 152°, which reduces the occupied space and can better cooperate with the helical teeth of the gear.
[0026] The joint 2 uses a commonly used quick-connect joint in the market, which has a low cost and is convenient for procurement. The joint 2 can be connected to the fixed position of the workpiece of the original laser processing device, and the shovel-shaped arm can be driven to rotate around the A axis through the settings of the processing device.
[0027] The shovel plate 11 is further provided with a first gap 112 and a second gap 113. The first gap 112 penetrates the shovel plate 11 in the thickness direction. The first gap 112 is communicated with the motor hole 111, so that the shovel plate 11 is disconnected at the first gap 112. The second gap 113 penetrates the shovel plate 11 in the thickness direction. One side of the second gap 113 is communicated with the motor hole 111, and a circular hole 114 is provided on the other side. The shovel plate 11 is further provided with a side locking hole 115 for locking the motor 3, and the side locking hole 115 is located at the disconnected position.
[0028] The present invention provides the first gap 112 and the second gap 113, which facilitate the installation of the motor 3. Cooperating with the side locking hole 115, it is convenient to lock the motor 3, and there is a space for opening and relaxing, which is convenient for disassembly and assembly.
[0029] The motor hole 111 is a circular hole, which is convenient for installing the motor 3. In this embodiment, a motor of JMI39.5-55S-V6 is adapted. The motor should ensure a torque of 0.32 Nm during continuous rotation, and the repeatability accuracy is within ±2 arcsec.
[0030] The first gap 112 and the second gap 113 are located on the same diameter of the motor hole 111. The size of the circular hole 114 is larger than that of the second gap 113, which provides the maximum avoidance space for installation and improves the disassembly and assembly efficiency.
[0031] As Figure 3 shown, the motor 3 is inserted into the motor hole 111, and a linkage base 4 is fixed to the driving end of the motor 3; the expansion locking ring 5 is fixed to the linkage base 4; Figure 6It is a schematic diagram of the linkage base. A central slotted hole 41 is provided in the linkage base 4, and the panel is provided with a first mounting hole 42 and a second mounting hole 43. The first mounting hole 42 is used for fixedly connecting the driving end of the motor 3, and the second mounting hole 43 is used for fixedly connecting the expansion locking ring 5.
[0032] The slotted hole 41 is aligned with the axial locking hole 522 of the expansion locking ring 5, which can avoid the bolt, making the locking effect of the expansion locking ring 5 better. The linkage base of the present invention can transmit torque between the motor and the expansion locking ring.
[0033] Figure 7 It is a schematic diagram of the expansion locking ring. Figure 8 It is Figure 7 a side view of Figure 9 It is Figure 8 a sectional schematic diagram of
[0034] The outer peripheral plate 51 and the locking ring 52 serve to fix the gear to the motor 3. The axial locking hole 522 is used in cooperation with the bolt to clamp the gear from the inside. The upper part of the inverted cone serves as a guiding function to facilitate the insertion of the bolt, and the lower part is provided with threads to fix the bolt. After the bolt is screwed in, it will squeeze the locking ring 52 from the inside, causing the outer diameter of the locking ring 52 to become larger, thus realizing the function of fixing the gear from the inside and leaving the outer wall of the gear for laser processing.
[0035] The locking ring 52 is provided with a plurality of locking slots 523 in the radial direction, so that the locking ring 52 is disconnected into a plurality of locking pieces, and the plurality of locking pieces are opened by the bolt to lock the motor 3; a relief groove 524 is provided at the bottom of the locking slot 523.
[0036] In the present invention, the locking ring 52 is cut into a plurality of locking pieces. When the bolt is screwed in, the bolt expands inside, and there is a gap of the locking slot 523 between the plurality of locking pieces, so that the locking pieces can expand outward. The relief groove 524 is located at the root of the locking piece, providing elasticity for expansion and space from the root.
[0037] The lower part of the axial locking hole 522 penetrates through the outer peripheral plate 51, and the middle part of the axial locking hole 522 communicates with the relief groove 524. Further improving the elasticity of the locking piece is convenient for disassembly and assembly.
[0038] The above description is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention all fall within the scope of the technical solution of the present invention.
Claims
1. An indexable fixture for laser machining PCD material gears, characterized in that: Comprising a shovel-shaped arm (1), one end of the shovel-shaped arm (1) is provided as a first connection part for connecting to a laser processing device, and the other end is provided as a second connection part for mounting a motor (3); the motor (3) is connected with an expansion locking ring (5), and the expansion locking ring (5) is used for positioning and mounting a PCD material gear (6); Wherein, the first connection part is driven to rotate by the laser processing device, the PCD material gear (6) is driven to rotate by the motor (3), and the rotation axis A of the first connection part forms an angle with the rotation axis B of the motor (3), so that the PCD material gear (6) revolves under the drive of the laser processing device and rotates on its own axis under the drive of the motor (3).
2. The indexable fixture for laser processing PCD material gears according to claim 1, characterized in that: The shovel-shaped arm (1) includes a shovel plate (11) and a shovel handle (12), the shovel plate (11) and the shovel handle (12) are connected at an obtuse angle, and a connecting plate (13) is further fixed to the shovel handle (12). The shovel plate (11) serves as the first connection part, and the connecting plate (13) serves as the second connection part; the connecting plate (13) is connected with a joint (2) for connecting to the laser processing device, and the shovel plate (11) is provided with a motor hole (111) for mounting the motor (3).
3. The indexable fixture for laser processing PCD material gears according to claim 2, characterized in that: The shovel plate (11) is further provided with a first gap (112) and a second gap (113), the first gap (112) penetrates the shovel plate (11) in the thickness direction, the first gap (112) communicates with the motor hole (111), so that the shovel plate (11) is disconnected at the first gap (112), the second gap (113) penetrates the shovel plate (11) in the thickness direction, one side of the second gap (113) communicates with the motor hole (111), and the other side is provided with a circular hole (114); the shovel plate (11) is further provided with a side locking hole (115) for locking the motor (3), and the side locking hole (115) is located at the disconnection point.
4. The indexable fixture for laser machining PCD material gears according to claim 3, characterized in that: The motor hole (111) is a circular hole, and the first gap (112) and the second gap (113) are located on the same diameter of the motor hole (111); the size of the circular hole (114) is larger than that of the second gap (113).
5. The indexable fixture for laser machining PCD material gears according to claim 3, characterized in that: The motor (3) is inserted into the motor hole (111), and a linkage base (4) is fixed to the driving end of the motor (3), and the expansion locking ring (5) is fixed to the linkage base (4); a central slot hole (41) is provided in the center of the linkage base (4), and a first mounting hole (42) and a second mounting hole (43) are provided on the panel. The first mounting hole (42) is used for fixedly connecting the driving end of the motor (3), and the second mounting hole (43) is used for fixedly connecting the expansion locking ring (5).
6. The indexable fixture for laser machining PCD material gears according to claim 5, characterized in that: The expansion locking ring (5) includes a peripheral plate (51) and a locking ring (52). The peripheral plate (51) is connected to the linkage base (4), and the locking ring (52) can extend into the inner hole of the PCD material gear (6) and lock it. An axial locking hole (522) is provided at the center of the locking ring (52). The upper part of the axial locking hole (522) is inverted conical, the lower part is cylindrical and provided with internal threads. The upper part of the inverted cone can insert a bolt, and the lower part of the cylinder can lock the bolt and lock the motor (3).
7. The indexable fixture for laser processing PCD material gears according to claim 6, characterized in that: The locking ring (52) is provided with a plurality of locking grooves (523) in the radial direction, so that the locking ring (52) is disconnected into a plurality of locking pieces, and the plurality of locking pieces are opened by bolts to lock the motor (3); a relief groove (524) is provided at the bottom of the locking groove (523).
8. The indexable fixture for laser processing PCD material gears according to claim 7, wherein: The lower part of the axial locking hole (522) penetrates through the peripheral plate (51), and the middle part of the axial locking hole (522) communicates with the relief groove (524).