A gear ring fixing device for gear ring inner hole processing

Abstract

The application discloses a gear ring fixing device for gear ring inner hole machining and relates to the technical field of gear ring inner hole machining.The gear ring fixing device comprises a workbench and a clamping seat, the clamping seat is rotationally arranged above the workbench, a clamping mechanism for limiting the gear ring is arranged on the clamping seat, the clamping mechanism comprises sliding seats and positioning teeth, a plurality of sliding grooves are equidistantly arranged above the clamping seat, the sliding seats are respectively slidably arranged in the corresponding sliding grooves, a driving mechanism is arranged in the clamping seat, the sliding seats are synchronously slidably arranged in the sliding grooves through the driving mechanism, the positioning teeth are adjustably arranged at one end of the sliding seat close to the gear ring, and the positioning teeth comprise push plates, side plates and elastic films.The positioning teeth with adjustable length and width are engaged with the outer ring of the gear ring, the positioning teeth are adapted to the outer tooth grooves of different gear rings, and the gear ring is more stable when being clamped.

Description

Technical Field

[0001] This invention relates to the field of gear ring internal hole machining technology, and in particular to a gear ring fixing device for gear ring internal hole machining. Background Technology

[0002] As a fundamental and crucial mechanical component, gear rings are used in a wide range of applications, including power transmission, torque conversion, and starting assistance. Whether in automotive engines or complex industrial equipment, gear rings play an irreplaceable role. Internal bore machining is a critical step in gear ring processing, and its precision and quality directly affect the performance, reliability, and lifespan of the entire gear transmission system.

[0003] For example, CN120269378A describes a gear ring fixing device for machining the inner hole of a gear ring, belonging to the technical field of gear ring machining equipment. This device includes a base, a lower chuck, an upper chuck, and a drilling assembly. The lower chuck is rotatably connected to the base, and the upper chuck is positioned above the lower chuck. The gear ring to be machined is mounted on the lower chuck, and the drilling assembly is located on one side of the base. This invention not only achieves bidirectional clamping and fixing of the gear ring to be machined, effectively preventing deformation of the gear ring during fixing, but the limiting assembly also fixes the end face of the gear ring, effectively preventing vibration during gear ring machining that could affect the drilling accuracy and effect, thus improving the quality of gear ring machining.

[0004] However, in the existing technology, when machining the inner hole of the existing gear ring, the outer ring of the gear ring is often clamped and fixed. That is, the positioning and locking are achieved by the multi-directionally distributed clamping tooth blocks meshing with the tooth groove of the outer ring of the gear ring, as shown in the above patent.

[0005] Gear rings come in a variety of specifications, and the depth and width of the tooth grooves vary significantly between different sizes. This makes it difficult for a fixed-size clamping block to achieve stable and reliable positioning and force transmission with the outer teeth of different gear rings. When the clamping block and the tooth groove only make partial or point contact, slippage, loosening, or positioning datum drift are likely to occur, making it difficult to meet the comprehensive requirements of stability, versatility, and machining accuracy for machining the inner holes of multi-specification gear rings. Summary of the Invention

[0006] In view of the aforementioned existing problems, the present invention is proposed.

[0007] The purpose of this invention is to solve the problem that existing technologies are not suitable for stable positioning of outer rings of gears of different sizes.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0009] On one hand, the present invention provides a gear ring fixing device for machining the inner hole of a gear ring, which includes a worktable and a clamping seat. The clamping seat is rotatably disposed above the worktable. The clamping seat is provided with a clamping mechanism for limiting the position of the gear ring. The clamping mechanism includes a sliding seat and a positioning tooth. Multiple sliding grooves are equally spaced on the upper part of the clamping seat. Multiple sliding seats are provided and are slidably disposed in the corresponding sliding grooves. A driving mechanism is provided in the clamping seat. Multiple sliding seats are synchronously slidably disposed in the sliding grooves through the driving mechanism. The positioning tooth is adjustablely disposed at one end of the sliding seat near the gear ring. The positioning tooth includes a push plate, a side plate and an elastic membrane. Two push plates are provided and symmetrically slidably disposed on the end face of the sliding seat. The length of the push plate is adjustable. Two side plates are provided and are rotatably disposed on the end face of the push plate. The elastic membrane is disposed on the end face of the sliding seat and wraps around the push plate and the side plate.

[0010] Furthermore, the upper part of the worktable is rotatably connected to the clamping seat via a rotating shaft, and a first motor is provided inside the worktable, with the lower end of the rotating shaft driven to rotate by the first motor;

[0011] The first motor drives the rotating shaft to rotate, which in turn drives the clamping seat above to rotate, so that the inner ring of the gear ring can be machined by rotating the gear ring itself.

[0012] Furthermore, the driving mechanism includes a slider, a hinge bar, and a rotating ring. The slider is disposed at the lower end of the sliding seat and is slidably connected to the sliding groove. The clamping seat has an assembly groove at its lower interior. A fixed shaft is disposed at the center of the assembly groove. The rotating ring is rotatably disposed outside the fixed shaft. The rotating ring is driven to rotate by a second motor. The slider is hinged to the outside of the rotating ring via the hinge bar.

[0013] By driving the second motor to rotate, the rotating ring rotates. Since the length of the hinge bar is fixed, after the hinge bar rotates at a certain angle, it can push the slider to move in the sliding groove, thereby achieving the effect of adjusting the position of the sliding seat.

[0014] Furthermore, a support bracket is provided below the upper end of the sliding seat facing the center position, the positioning tooth is slidably disposed above the support bracket, the support bracket is used to support the lower part of the tooth ring, the end face of the sliding seat is provided with a fixing frame, a first lead screw and a double lead screw are respectively rotatably disposed between the two ends of the fixing frame, the end faces of the two push plates are threaded onto the two ends of the double lead screw, and the end face of the fixing frame is provided with a switching component for connecting the first lead screw and the double lead screw;

[0015] The support bracket is used to support the bottom of the gear, the double-acting lead screw is used to drive the spacing of the push plate, the first lead screw is used to adjust the length of the push plate, and the switching component can be set to select a third motor to drive one of the components.

[0016] Furthermore, the push plate includes an inner plate, an outer plate, an inner shaft, and an outer shaft. One end of the inner plate is slidably disposed inside the outer plate. The end face of the outer plate is threaded onto a bidirectional lead screw and slidably connected to the fixing frame. One end of the inner shaft is slidably disposed inside the outer shaft. The other end of the inner shaft is assembled and connected to the inner end face of the inner plate. The end face of the outer shaft is assembled and connected to the end face of the outer plate. An adjusting ring is rotatably provided on the outer side of the end face of one set of outer shafts connected to inner shafts, and the length of the inner shaft and outer shaft is adjusted by the adjusting ring. Another set of inner shafts is slidably disposed inside the outer shaft. The two push plate end faces are linked by a telescopic plate.

[0017] The length of the inner shaft within the outer shaft is adjusted by rotating the adjusting ring. Since the inner shaft is assembled with the inner plate and the outer shaft is assembled with the outer plate, adjusting the length of the inner and outer shafts can adjust the overall length of the push plate. This is due to the arrangement of the inner and outer plates.

[0018] Furthermore, the inner side of one end of the adjusting ring is rotatably connected to the outer shaft, and the inner side of the other end is threadedly rotatably connected to the outer side of the inner shaft. The inner shaft and the outer shaft are only slidably connected. A square frame is slidably provided on the outer side of the adjusting ring. The square frame is driven to slide by the first lead screw. The square frame is a hollow structure and meshes with the outer side of the adjusting ring.

[0019] By reciprocating the square frame, the adjusting ring can be driven to mesh and rotate with the square frame. The rotation of the adjusting ring can change the overall length of the push plate to adapt to the tooth grooves of different sizes on the outside of the tooth ring.

[0020] Furthermore, a first gear and a second gear are rotatably mounted on the outer shaft of the adjusting ring via a connecting shaft. The first gear is disposed on the end face of the connecting shaft and meshes with the adjusting ring. The square frame is sleeved on the outside of the second gear, and a fixed rack that meshes with the second gear is disposed on the lower part of the inner wall of the square frame. A fixed strip is disposed between the two ends of the fixed frame. The first lead screw is rotatably disposed within the fixed strip. The square frame is slidably disposed within the fixed strip below and is threadedly connected to the first lead screw.

[0021] By driving the first lead screw to rotate, the square frame slides back and forth relative to the first lead screw, thereby driving the second gear and the first gear to rotate, and finally realizing the rotation of the adjusting ring, which is used to adjust the length of the push plate.

[0022] Furthermore, the switching component includes gear one, gear two, gear three, and gear four. A third motor is provided on the end face of the fixed frame, and a main gear is linked to the output end of the third motor. Gear one and gear two are respectively linked to the end faces of the bidirectional lead screw and the first lead screw. Gear three is meshed between gear one and the main gear, and gear four is meshed between gear two and the main gear. An installation groove is provided on the end face of the fixed frame, and a bracket is slidably provided in the installation groove. Gear three and gear four are misaligned on the bracket. The bracket is assembled and connected to the fixed frame through a first spring. A first magnetic block is provided on the end face of the bracket, and a second magnetic block is provided in the installation groove that is attracted to the first magnetic block. The second magnetic block is electrically connected to an external power source.

[0023] The third motor is equipped with a reducer. The third motor drives the main gear to rotate slowly. When the second magnetic block is not energized, gear three meshes with gear one and the main gear, while gear four and gear two are disconnected from the main gear. At this time, the third motor drives the bidirectional lead screw to rotate, thereby adjusting the distance between the two push plates.

[0024] Furthermore, the side plate is connected to the push plate at one end with a side shaft, and the outer side of the push plate end face is provided with a bushing adapted to the rotation of the side shaft. The outer wall of the side shaft is provided with multiple side grooves, and a limiting strip is provided in the side groove through a second spring. The inner wall of the bushing is provided with multiple limiting grooves adapted to the sliding of the limiting strip.

[0025] Furthermore, the end face of the limiting strip is provided with a first magnetic strip, and the side groove is provided with a second magnetic strip that is attracted to the first magnetic strip. The second magnetic strip is electrically connected to an external power source, and the inner side of the side plate is assembled and connected to the push plate through a third spring.

[0026] After the positioning tooth is engaged in the tooth groove of the tooth ring, the side plate unfolds and fits against the side wall of the tooth groove under the action of the third spring. At this time, the second magnetic strip is de-energized. Under the action of the second spring, the limiting strip is pushed into the limiting groove and engaged. This fixes the rotation angle of the side plate, which is used to support the tooth groove and prevent the tooth ring from shaking.

[0027] The beneficial effects of this invention are:

[0028] 1. This invention drives a drive mechanism to move all sliding seats synchronously towards the edge of the clamping seat on the sliding groove. The gear ring is placed between the sliding seats and all sliding seats are driven to achieve the engagement of the positioning teeth on the end face of the sliding seat with the tooth groove of the outer ring of the gear ring. Since the outer tooth grooves of different gear rings are of different sizes and depths, the push plate can be extended first so that the end face of the push plate abuts against the deepest part of the gear ring. Then, the two push plates are adjusted to move away from each other so that the push plates are at the two ends of the tooth groove. Finally, the rotation angle of the side plate is adjusted so that the side edge of the side plate fits with the side edge of the tooth groove. At this time, the push plate and the side plate are completely matched with the tooth groove of the gear ring. The elastic membrane laid on the outside of the push plate and the side plate is used to block the end face of the push plate from the tooth groove to avoid damage to the tooth groove. In addition, the multiple positioning teeth can be used to stabilize and limit the gear ring in multiple directions, which can effectively prevent slippage during the processing of the gear ring.

[0029] 2. This invention adjusts the length of the inner shaft within the outer shaft by rotating the adjusting ring. Since the inner shaft is assembled with the inner plate and the outer shaft is assembled with the outer plate, adjusting the length of the inner and outer shafts can adjust the overall length of the push plate. Due to the design of the inner and outer plates, the contact area between the inner and outer plates and the tooth grooves of the gear ring is greatly increased, thereby improving the stability of the tooth groove limit and reducing the possibility of scratching the end face of the push plate on the gear ring.

[0030] 3. In the present invention, when the second magnetic block is not energized, gear three meshes with gear one and the main gear, while gear four and gear two are disconnected from the main gear. At this time, the third motor drives the bidirectional lead screw to rotate, that is, adjust the distance between the two push plates. When the second magnetic block is energized, the bracket and gear three and gear four as a whole are attracted to move close to the mounting groove until gear three and gear one are disconnected from the main gear, and gear four and gear two mesh with the main gear. At this time, the first lead screw is driven to rotate, that is, adjust the length of the push plate.

[0031] 4. Under the pushing action of the third spring, the side plate of the present invention unfolds outward. In the initial state, the second magnetic strip is energized and attracts the first magnetic strip, causing the limiting strip to retract into the side groove. At this time, the side plate can rotate at any angle. When the positioning tooth is engaged in the tooth groove of the tooth ring, the side plate unfolds under the action of the third spring and fits against the side wall of the tooth groove. At this time, the second magnetic strip is de-energized. Under the action of the second spring, the limiting strip is pushed into the limiting groove and engaged. At this time, the rotation angle of the side plate is fixed, which is used to support the tooth groove and prevent the tooth ring from shaking. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A perspective view of a gear ring fixing device for machining the inner hole of a gear ring, provided by the present invention;

[0034] Figure 2 A schematic diagram of the worktable and clamping seat structure of a gear ring fixing device for machining the inner hole of a gear ring provided by the present invention;

[0035] Figure 3 A schematic diagram of the internal structure of a clamping seat for a gear ring fixing device for machining the inner hole of a gear ring, provided by the present invention;

[0036] Figure 4 A schematic diagram of a drive mechanism for a gear ring fixing device for machining the inner hole of a gear ring, provided by the present invention;

[0037] Figure 5 A schematic diagram of the assembly structure of the sliding seat and positioning teeth of a gear ring fixing device for machining the inner hole of a gear ring provided by the present invention;

[0038] Figure 6 A schematic diagram of the positioning tooth structure of a gear ring fixing device for machining the inner hole of a gear ring, provided by the present invention;

[0039] Figure 7 A schematic diagram of the push plate and side plate structure of a gear ring fixing device for machining the inner hole of a gear ring provided by the present invention;

[0040] Figure 8 A schematic diagram of the switching component structure of a gear ring fixing device for machining the inner hole of a gear ring provided by the present invention;

[0041] Figure 9 A schematic diagram of the switching component structure of a gear ring fixing device for machining the inner hole of a gear ring provided by the present invention;

[0042] Figure 10 This invention provides a schematic diagram of the assembly of a side plate and a push plate of a gear ring fixing device for machining the inner hole of a gear ring.

[0043] Figure 11 This is a schematic diagram of the assembly structure of the bushing and side shaft of a gear ring fixing device for machining the inner hole of a gear ring, provided by the present invention.

[0044] Legend:

[0045] 1. Worktable; 2. Clamping seat; 311. Sliding seat; 312. Positioning tooth; 3121. Push plate; 3122. Side plate; 3123. Elastic membrane; 313. Sliding groove; 411. Rotating shaft; 412. First motor; 511. Slider; 512. Hinge bar; 513. Rotating ring; 514. Assembly groove; 515. Fixed shaft; 516. Second motor; 521. Support bracket; 522. Fixing frame; 523. First lead screw; 524. Bidirectional lead screw; 525. Switching component; 611. Inner plate; 612. Outer plate; 613. Inner shaft; 614. Outer shaft; 615. Adjusting ring; 616. Telescopic plate; 62 1. Square frame; 631. Connecting shaft; 632. First gear; 633. Second gear; 634. Fixed rack; 635. Fixed strip; 711. Gear one; 712. Gear two; 713. Gear three; 714. Gear four; 715. Third motor; 716. Main gear; 721. Mounting slot; 722. Bracket; 723. First spring; 724. First magnet; 725. Second magnet; 811. Side shaft; 812. Bushing; 813. Side groove; 814. Second spring; 815. Limiting strip; 816. Limiting groove; 821. First magnetic strip; 822. Second magnetic strip; 823. Third spring. Detailed Implementation

[0046] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0047] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0048] Secondly, as used herein, "an embodiment" or "embodiment" refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0049] Please see Figures 1-11 The present invention provides a technical solution: a gear ring fixing device for machining the inner hole of a gear ring, including a worktable 1 and a clamping seat 2, the clamping seat 2 being rotatably disposed above the worktable 1, and the clamping seat 2 being provided with a clamping mechanism for limiting the position of the gear ring;

[0050] The clamping mechanism includes a sliding seat 311 and a positioning tooth 312. Multiple sliding grooves 313 are equally spaced on the upper part of the clamping seat 2. Multiple sliding seats 311 are provided and are slidably disposed in the corresponding sliding grooves 313. A driving mechanism is provided in the clamping seat 2. Multiple sliding seats 311 are synchronously slidably disposed in the sliding grooves 313 through the driving mechanism. The positioning tooth 312 is adjustablely disposed at one end of the sliding seat 311 near the tooth ring.

[0051] The positioning tooth 312 includes a push plate 3121, a side plate 3122, and an elastic membrane 3123. Two push plates 3121 are provided and symmetrically slidably disposed on the end face of the sliding seat 311. The length of the push plate 3121 is adjustable. Two side plates 3122 are provided and rotatably disposed on the end face of the push plate 3121 respectively. The elastic membrane 3123 is disposed on the end face of the sliding seat 311 and wraps the push plate 3121 and the side plate 3122 inside.

[0052] The upper part of the worktable 1 is rotatably connected to the clamping seat 2 via a rotating shaft 411. The worktable 1 is equipped with a first motor 412, and the lower end of the rotating shaft 411 is driven to rotate by the first motor 412.

[0053] The first motor 412 drives the rotating shaft 411 to rotate, which in turn drives the clamping seat 2 above to rotate, so that the inner ring of the gear ring can be processed by rotating the gear ring itself during processing.

[0054] The drive mechanism includes a slider 511, a hinge bar 512 and a rotating ring 513. The slider 511 is disposed at the lower end of the sliding seat 311 and is slidably connected to the sliding groove 313.

[0055] The clamping seat 2 has an assembly groove 514 at the bottom inside, and a fixed shaft 515 is located at the center of the assembly groove 514. A rotating ring 513 is rotatably disposed outside the fixed shaft 515. The rotating ring 513 is driven to rotate by a second motor 516. The slider 511 is hinged to the outside of the rotating ring 513 by a hinge strip 512.

[0056] By driving the second motor 516 to rotate, the rotating ring 513 rotates. Since the length of the hinge bar 512 is fixed, after the hinge bar 512 rotates at a certain angle, it can push the slider 511 to move in the sliding groove 313, thereby achieving the effect of adjusting the position of the sliding seat 311.

[0057] The second motor 516 is located inside the fixed shaft 515, and the output end of the second motor 516 is engaged with the rotating ring 513 through gears.

[0058] A support bracket 521 is provided below the upper end of the sliding seat 311 facing the center position. The positioning tooth 312 is slidably disposed above the support bracket 521. The upper part of the support bracket 521 is used to support the lower part of the tooth ring.

[0059] The sliding seat 311 has a fixed frame 522 on its end face. A first lead screw 523 and a double lead screw 524 are rotatably provided between the two ends of the fixed frame 522. The two push plates 3121 are threaded onto the two ends of the double lead screw 524. The fixed frame 522 has a switching piece 525 for connecting the first lead screw 523 and the double lead screw 524 on its end face.

[0060] The support bracket 521 is used to support the bottom of the gear, the double-acting lead screw 524 is used to drive the spacing of the push plate 3121, the first lead screw 523 is used to adjust the length of the push plate 3121, and the switching component 525 can select the third motor 715 to drive one of them.

[0061] The push plate 3121 includes an inner plate 611, an outer plate 612, an inner shaft 613, and an outer shaft 614. One end of the inner plate 611 is slidably disposed inside the outer plate 612. The end face of the outer plate 612 is threaded onto the bidirectional lead screw 524 and slidably connected to the fixing frame 522. One end of the inner shaft 613 is slidably disposed inside the outer shaft 614. The other end of the inner shaft 613 is assembled and connected to the inner end face of the inner plate 611. The end face of the outer shaft 614 is assembled and connected to the end face of the outer plate 612.

[0062] An adjusting ring 615 is provided on the outer side of the end face where the outer shaft 614 is connected to the inner shaft 613, and the lengths of the inner shaft 613 and the outer shaft 614 are adjusted by the adjusting ring 615. Another set of inner shafts 613 is only slidably disposed inside the outer shaft 614. The end faces of the two push plates 3121 are linked by the telescopic plate 616.

[0063] The length of the inner shaft 613 within the outer shaft 614 is adjusted by rotating the adjusting ring 615. Since the inner shaft 613 is assembled and connected to the inner plate 611 and the outer shaft 614 is assembled and connected to the outer plate 612, the overall length of the push plate 3121 can be adjusted when the lengths of the inner shaft 613 and the outer shaft 614 are adjusted.

[0064] Due to the arrangement of the inner plate 611 and the outer plate 612, the contact area between them and the tooth groove of the gear ring is greatly increased, thereby improving the stability of the tooth groove limit and reducing the possibility of scratching the end face of the push plate 3121 on the gear ring.

[0065] One end of the adjusting ring 615 is rotatably connected to the outer shaft 614, and the other end is threadedly connected to the outer side of the inner shaft 613. The inner shaft 613 and the outer shaft 614 are only slidably connected. A square frame 621 is slidably provided on the outer side of the adjusting ring 615. The square frame 621 is driven to slide by the first lead screw 523. The square frame 621 is a hollow structure and meshes with the outer side of the adjusting ring 615.

[0066] By reciprocating the square frame 621, the adjusting ring 615 can be driven to mesh and rotate with the square frame 621. The rotation of the adjusting ring 615 can drive the overall length of the push plate 3121 to change in order to adapt to the tooth grooves of different sizes on the outside of the tooth ring.

[0067] A first gear 632 and a second gear 633 are rotatably mounted on an outer shaft 614 with an adjusting ring 615 via a connecting shaft 631. The first gear 632 is located on the end face of the connecting shaft 631 and meshes with the adjusting ring 615. A square frame 621 is sleeved on the outside of the second gear 633, and a fixed rack 634 that meshes with the second gear 633 is located on the lower part of the inner wall of the square frame 621.

[0068] A fixing strip 635 is provided between the two ends of the fixing frame 522. The first lead screw 523 is rotatably disposed in the fixing strip 635. The square frame 621 is slidably disposed in the fixing strip 635 below and is threadedly connected to the first lead screw 523.

[0069] By driving the first lead screw 523 to rotate, the square frame 621 is driven to slide back and forth relative to the first lead screw 523, thereby driving the second gear 633 and the first gear 632 to rotate, and finally realizing the rotation of the adjusting ring 615, which is used to adjust the length of the push plate 3121.

[0070] The switching component 525 includes gear 1 711, gear 2 712, gear 3 713 and gear 4 714. The end face of the fixed frame 522 is provided with a third motor 715. The output end of the third motor 715 is linked with a main gear 716. Gear 1 711 and gear 2 712 are respectively linked to the end faces of the bidirectional lead screw 524 and the first lead screw 523. Gear 3 713 is meshed between gear 1 711 and main gear 716. Gear 4 714 is meshed between gear 2 712 and main gear 716.

[0071] The end face of the fixed frame 522 is provided with a mounting groove 721. The bracket 722 is slidably arranged in the mounting groove 721. Gear 3 713 and gear 4 714 are misaligned on the bracket 722. The bracket 722 is assembled and connected to the fixed frame 522 by a first spring 723. The end face of the bracket 722 is provided with a first magnet 724. The mounting groove 721 is provided with a second magnet 725 that is attracted to the first magnet 724. The second magnet 725 is electrically connected to an external power source.

[0072] The third motor 715 is equipped with a speed reducer, and the third motor 715 drives the main gear 716 to rotate slowly.

[0073] When the second magnetic block 725 is not energized, gear 3 713 and gear 1 711 mesh with the main gear 716, while gear 4 714 and gear 2 712 are disconnected from the main gear 716. At this time, the third motor 715 drives the bidirectional lead screw 524 to rotate, thereby adjusting the distance between the two push plates 3121.

[0074] When the second magnetic block 725 is energized, the bracket 722, gear three 713, and gear four 714 are attracted to move close to the mounting slot 721 until gear three 713 and gear one 711 are disconnected from the main gear 716, and gear four 714 and gear two 712 mesh with the main gear 716. At this time, the first lead screw 523 is driven to rotate, that is, the length of the push plate 3121 is adjusted.

[0075] The side plate 3122 is connected to the push plate 3121 at one end and is provided with a side shaft 811. The outer side of the end face of the push plate 3121 is provided with a bushing 812 that is adapted to rotate with the side shaft 811. The outer wall of the side shaft 811 is provided with multiple side grooves 813. A limiting strip 815 is provided in the side groove 813 through a second spring 814. The inner wall of the bushing 812 is provided with multiple limiting grooves 816 that are adapted to slide with the limiting strip 815.

[0076] The end face of the limiting strip 815 is provided with a first magnetic strip 821, and the side groove 813 is provided with a second magnetic strip 822 that is attracted to the first magnetic strip 821. The second magnetic strip 822 is electrically connected to an external power source. The inner side of the side plate 3122 is assembled and connected to the push plate 3121 through a third spring 823.

[0077] The side plate 3122 unfolds outward under the push of the third spring 823. In the initial state, the second magnetic strip 822 is energized and attracts the first magnetic strip 821, causing the limiting strip 815 to retract into the side groove 813. At this time, the side plate 3122 can rotate at any angle.

[0078] When the positioning tooth 312 is engaged in the tooth groove of the tooth ring, the side plate 3122 unfolds and fits against the side wall of the tooth groove under the action of the third spring 823. At this time, the second magnetic strip 822 is de-energized. Under the action of the second spring 814, the limiting strip 815 is pushed into the limiting groove 816 and engaged. At this time, the rotation angle of the side plate 3122 is fixed to support the tooth groove and prevent the tooth ring from shaking.

[0079] Working principle: During the positioning of the gear ring before processing, the drive mechanism drives all the sliding seats 311 to move synchronously upwards towards the edge of the clamping seat 2 in the sliding groove 313. The gear ring is placed between the sliding seats 311, and all the sliding seats 311 are driven to achieve the engagement of the positioning teeth 312 on the end face of the sliding seat 311 with the tooth groove of the outer ring of the gear ring. Since the outer tooth grooves of different gear rings are of different sizes and depths, the push plate 3121 can be extended first so that the end face of the push plate 3121 abuts against the deepest part of the gear ring. Then, the two push plates 3121 are adjusted to move away from each other so that the push plates 3121 are respectively at the two ends of the tooth groove. Finally, the side plate 3122 is rotated. Adjustment is made so that the side of the side plate 3122 fits into the side of the tooth groove. At this time, the push plate 3121 and the side plate 3122 are fully adapted to the tooth groove of the tooth ring. The elastic membrane 3123 laid on the outside of the push plate 3121 and the side plate 3122 is used to block the end face of the push plate 3121 from the tooth groove to avoid damage to the tooth groove. In addition, the multiple positioning teeth 312 can be used to stabilize and limit the tooth ring in multiple directions, which can effectively prevent the tooth ring from slipping during processing. It should be noted that the number of teeth on the outer ring of the tooth ring needs to be a multiple of the number of positioning teeth 312. Therefore, this device can fix tooth rings with a multiple of positioning teeth 312. Based on this, tooth rings of different sizes within a certain range can be clamped.

[0080] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A gear ring fixing device for machining the inner hole of a gear ring, comprising a worktable (1) and a clamping seat (2), wherein the clamping seat (2) is rotatably disposed above the worktable (1), and the clamping seat (2) is provided with a clamping mechanism for limiting the position of the gear ring, characterized in that: The clamping mechanism includes a sliding seat (311) and a positioning tooth (312). Multiple sliding grooves (313) are equidistantly spaced above the clamping seat (2). Multiple sliding seats (311) are provided and slidably disposed within their respective sliding grooves (313). A driving mechanism is provided within the clamping seat (2). Multiple sliding seats (311) are synchronously slidably disposed within the sliding grooves (313) via the driving mechanism. The positioning tooth (312) is adjustablely disposed at one end of the sliding seat (311) near the gear ring. The positioning tooth (312) includes a push plate (3121), a side plate (3122), and an elastic membrane (3123). Two push plates (3121) are provided and symmetrically slidably disposed on the end face of the sliding seat (311). The length of the push plate (3121) is adjustable. Two side plates (3122) are provided and rotatably disposed on the end face of the push plate (3121). The elastic membrane (3123) is disposed on the end face of the sliding seat (311) and encloses the push plate (3121) and the side plate (3122). The workbench (1) is rotatably connected to the clamping seat (2) via a rotating shaft (411) on the top. The workbench (1) is equipped with a first motor (412), and the lower end of the rotating shaft (411) is driven to rotate by the first motor (412). The driving mechanism includes a slider (511), a hinge bar (512), and a rotating ring (513). The slider (511) is disposed at the lower end of the sliding seat (311) and is slidably connected to the sliding groove (313). The clamping seat (2) has an assembly groove (514) at the lower inside. A fixed shaft (515) is provided at the center of the assembly groove (514). The rotating ring (513) is rotatably disposed outside the fixed shaft (515). The rotating ring (513) is driven to rotate by a second motor (516). The slider (511) is hinged to the outside of the rotating ring (513) below the hinge bar (512). A support bracket (521) is provided below the upper end of the sliding seat (311) facing the center position. The positioning tooth (312) is slidably disposed above the support bracket (521). The support bracket (521) is used to support the lower part of the tooth ring. A fixing frame (522) is provided on the end face of the sliding seat (311). A first lead screw (523) and a double lead screw (524) are respectively rotatably disposed between the two ends of the fixing frame (522). The end faces of the two push plates (3121) are threaded onto the two ends of the double lead screw (524). A switching piece (525) for connecting the first lead screw (523) and the double lead screw (524) is provided on the end face of the fixing frame (522).

2. The gear ring fixing device for machining the inner hole of a gear ring according to claim 1, characterized in that, The push plate (3121) includes an inner plate (611), an outer plate (612), an inner shaft (613), and an outer shaft (614). One end of the inner plate (611) is slidably disposed inside the outer plate (612). The end face of the outer plate (612) is threaded onto the bidirectional lead screw (524) and slidably connected to the fixing frame (522). One end of the inner shaft (613) is slidably disposed inside the outer shaft (614), and the other end of the inner shaft (613) is connected to the inner plate (611). The inner end face is assembled and connected. The end face of the outer shaft (614) is assembled and connected with the end face of the outer plate (612). An adjustment ring (615) is rotatably provided on the outer side of the end face of the connection between the outer shaft (614) and the inner shaft (613). The length of the inner shaft (613) and the outer shaft (614) is adjusted and set by the adjustment ring (615). The other set of inner shafts (613) is only slidably set inside the outer shaft (614). The end faces of the two push plates (3121) are linked by the telescopic plate (616).

3. A gear ring fixing device for machining the inner hole of a gear ring according to claim 2, characterized in that, The inner side of one end of the adjusting ring (615) is rotatably connected to the outer shaft (614), and the inner side of the other end is threadedly connected to the outer side of the inner shaft (613). The inner shaft (613) and the outer shaft (614) are only slidably connected. A square frame (621) is slidably provided on the outer side of the adjusting ring (615). The square frame (621) is driven to slide by the first lead screw (523). The square frame (621) is a hollow structure and meshes with the outer side of the adjusting ring (615).

4. A gear ring fixing device for machining the inner hole of a gear ring according to claim 3, characterized in that, A first gear (632) and a second gear (633) are rotatably mounted on an outer shaft (614) of the adjusting ring (615) via a connecting shaft (631). The first gear (632) is located on the end face of the connecting shaft (631) and meshes with the adjusting ring (615). A square frame (621) is sleeved on the outside of the second gear (633), and a fixed rack (634) meshing with the second gear (633) is provided on the lower part of the inner wall of the square frame (621). A fixing strip (635) is provided between the two ends of the fixing frame (522). The first lead screw (523) is rotatably mounted in the fixing strip (635), and the square frame (621) is slidably mounted in the fixing strip (635) and threadedly connected to the first lead screw (523).

5. A gear ring fixing device for machining the inner hole of a gear ring according to claim 4, characterized in that, The switching component (525) includes gear one (711), gear two (712), gear three (713), and gear four (714). A third motor (715) is provided on the end face of the fixed frame (522). A main gear (716) is linked to the output end of the third motor (715). Gear one (711) and gear two (712) are respectively linked to the end faces of the bidirectional lead screw (524) and the first lead screw (523). Gear three (713) is meshed between gear one (711) and the main gear (716). Gear four (714) is meshed between gear two (712) and the main gear. Between the wheels (716), the end face of the fixed frame (522) is provided with an installation groove (721), and a bracket (722) is slidably provided in the installation groove (721). The gear three (713) and gear four (714) are misaligned on the bracket (722). The bracket (722) is assembled and connected to the fixed frame (522) through a first spring (723). The end face of the bracket (722) is provided with a first magnetic block (724). The installation groove (721) is provided with a second magnetic block (725) that is attracted to the first magnetic block (724). The second magnetic block (725) is electrically connected to an external power source.

6. A gear ring fixing device for machining the inner hole of a gear ring according to claim 5, characterized in that, The side plate (3122) is connected to the push plate (3121) at one end and is provided with a side shaft (811). The outer side of the end face of the push plate (3121) is provided with a bushing (812) that is adapted to the rotation of the side shaft (811). The outer wall of the side shaft (811) is provided with a plurality of side grooves (813). The side groove (813) is provided with a limiting strip (815) through a second spring (814). The inner wall of the bushing (812) is provided with a plurality of limiting grooves (816) that are adapted to the sliding of the limiting strip (815).

7. A gear ring fixing device for machining the inner hole of a gear ring according to claim 6, characterized in that, The end face of the limiting strip (815) is provided with a first magnetic strip (821), and the side groove (813) is provided with a second magnetic strip (822) that is attracted to the first magnetic strip (821). The second magnetic strip (822) is electrically connected to an external power source. The inner side of the side plate (3122) is assembled and connected to the push plate (3121) through a third spring (823).

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