A tooling for fixing large-diameter end teeth internally and externally

Abstract

This invention provides a fixture for fixing large-diameter end teeth internally and externally, including an end tooth clamping structure. The fixture includes a movable frame, with a through hole at the bottom of the frame engaging with a transmission screw. Fitting grooves are provided on both sides of the bottom of the movable frame, slidably connected to a frame rod. A connecting pipe is provided on the outer wall of one side of the fitting groove, and a coolant outlet groove is provided on the outer wall of the other side of the movable frame. The interior of the movable frame communicates with the connecting pipe. Through the end tooth clamping structure, during the clamping process, the coolant outlet groove on the top of the inner side of the movable frame can evenly spray coolant onto the surface of the end tooth. Simultaneously, the coolant outlet groove is inclined and contains a rotating plate that obstructs the coolant flow, ensuring even spraying of coolant onto the end tooth surface. This minimizes the overall temperature difference of the end tooth and prevents thermal deformation during the fixing and processing within the fixture.

Description

Technical Field

[0001] This invention belongs to the field of end tooth processing technology, specifically relating to a tooling for fixing large-diameter end teeth internally and externally. Background Technology

[0002] An end gear is a type of gear that meshes with a spur gear or a helical gear at a 90-degree axial angle. In this type of gear, the central axes of the pinion and the end gear are perpendicular, and the two perpendicular central axes can intersect or be offset from each other.

[0003] End gears are mainly used in industries such as helicopters, fishing reels, watches, and bicycles. Their heavy-duty and smooth transmission characteristics have a wide range of applications.

[0004] During the grinding and cutting process of the end teeth, the end teeth need to be fixed by tooling, and the end teeth need to be cooled during the machining process. The coolant directly contacts the local area of ​​the machined end teeth, which can easily cause a large temperature difference between the machined end teeth and the end teeth that are not in contact with the coolant. Summary of the Invention

[0005] 1. Purpose of the invention

[0006] To address the aforementioned technical problems, this invention provides a tooling for fixing large-diameter end teeth internally and externally, thereby solving the technical problems mentioned in the background art.

[0007] 2. Technical Solution

[0008] To achieve the above objectives, the present invention provides a tooling for fixing large-diameter end teeth internally and externally, including a support block, a frame rod provided on the outer wall of the support block, an mounting block provided at one end of the frame rod, a gearbox and a gearbox provided between the mounting block and the support block, and a transmission screw provided at both output ends of the gearbox and the gearbox.

[0009] The end-tooth clamping structure includes a movable frame. The through hole at the bottom of the movable frame is engaged with the transmission screw. Fitting grooves are provided on both sides of the bottom of the movable frame. The fitting grooves are slidably connected to the frame rod. A connecting pipe is provided on the outer wall of one side of the fitting groove. A liquid outlet groove is provided on the outer wall of the other side of the movable frame. The interior of the movable frame is connected to the connecting pipe. An installation shaft is rotatably connected inside the movable frame.

[0010] Preferably, a servo motor is provided at the bottom of the support block, and a drive gear is provided at the output end of the servo motor.

[0011] Preferably, the gearbox and transmission have a sliding groove on the top and a driven gear at the bottom. The driven gear is connected to the input end of the gearbox and transmission and meshes with the driving gear.

[0012] Preferably, a robotic arm is provided between the two mounting blocks, and one end of the robotic arm is rotatably connected to an end tooth fixing structure, wherein the bottom of the end tooth fixing structure and the top of the sliding groove are located at the same cross-section.

[0013] Preferably, a worm gear is rotatably connected to the outer wall of one side of the mounting block, one end of the worm gear is connected to the output end of the drive motor, and the drive motor is fixedly connected to the outer wall of the mounting block.

[0014] Preferably, a worm gear is slidably connected to the inner wall of the sliding groove, and the worm gear and the worm cooperate with each other.

[0015] Preferably, the two movable frames are arranged opposite each other, and the bottom of the opposite surfaces of the movable frames are inclined.

[0016] Preferably, a rotating shaft is rotatably connected to the inner wall of the liquid outlet tank, and a rotating plate is rotatably connected to the outer wall of the rotating shaft. A planar spiral spring is provided at one end of the rotating plate, and one end of the planar spiral spring is connected to the liquid outlet tank.

[0017] Preferably, the annular array on the outer wall of the mounting shaft has multiple rotating plates, and the cross-section of the rotating plate at the same cross-section is equal to the cross-section inside the moving frame.

[0018] 3. Beneficial effects

[0019] The technical solution provided by this invention has the following advantages compared with the prior art:

[0020] The present invention uses an end-tooth clamping structure to clamp the end teeth. During the clamping process, the liquid outlet groove on the top of the inner side of the moving frame can spray the coolant evenly onto the surface of the end teeth. At the same time, the liquid outlet groove is inclined and has a rotating plate inside. The rotating plate blocks the coolant, so that the coolant can be sprayed evenly onto the surface of the end teeth, making the overall temperature difference of the end teeth smaller and avoiding thermal deformation of the end teeth during the fixed processing inside the tooling.

[0021] An installation shaft is installed inside the mobile frame. The coolant will push the rotating plate inside the installation shaft to rotate. When the rotating plate is in contact with the inner side of the mobile frame, the coolant flow will be interrupted. Then the pressure of the coolant sprayed from the outlet tank will be reduced, causing the coolant to flow from the end teeth to the outside, increasing the coverage area of ​​the coolant sprayed from the outlet tank.

[0022] By using robotic arms at both ends of the mounting block, the machined end teeth in the tooling can be flipped over, allowing the tooling to stably fix the end teeth on both sides. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present invention;

[0024] Figure 2 This is a perspective view of the present invention;

[0025] Figure 3 This is a three-dimensional cross-sectional view of the present invention;

[0026] Figure 4 This is a perspective view of the support block of the present invention;

[0027] Figure 5 This is a perspective view of the end tooth clamping structure of the present invention;

[0028] Figure 6 For the present invention Figure 5 Enlarged view of a portion of point A in the middle;

[0029] Figure 7 For the present invention Figure 3 Enlarged view of a portion of point A in the middle.

[0030] Figure Labels

[0031] 1. Support block; 2. Frame rod; 3. Mounting block; 4. Gearbox and transmission; 5. Driven gear; 6. Sliding groove; 7. Servo motor; 8. Drive gear; 9. Drive motor; 10. Worm gear; 11. Transmission screw; 12. End tooth clamping structure; 1201. Moving frame; 1202. Fitting groove; 1203. Connecting pipe; 1204. Liquid outlet groove; 1205. Rotating shaft; 1206. Rotating plate; 1207. Planar spiral spring; 1208. Mounting shaft; 1209. Rotating plate; 13. Robotic arm; 14. End tooth fixing structure; 15. Worm gear. Detailed Implementation

[0032] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "page," "bottom," "inner," "outer," "clockwise," "counterclockwise," "coaxial," "bottom," "one end," "top," "other end," "one side," "front," "both ends," and "both sides," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In this invention, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," and "equipped" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] Referring now to the accompanying drawings, the various figures are intended only to illustrate certain exemplary embodiments and are not intended to limit the invention. In the various figures, the same reference numerals denote the same or corresponding parts. The dimensions and scales in the various figures are also for illustration only and should not be construed as limiting the invention; these dimensions may be enlarged relative to actual products.

[0036] Reference Figure 1-7 The tooling for fixing large-diameter end teeth internally and externally includes a support block 1, a frame rod 2 is provided on the outer wall of the support block 1, a mounting block 3 is provided at one end of the frame rod 2, a gearbox and a transmission 4 are provided between the mounting block 3 and the support block 1, and a transmission screw 11 is provided at both output ends of the gearbox and the transmission 4.

[0037] The end-tooth clamping structure 12 includes a movable frame 1201. The through hole at the bottom of the movable frame 1201 cooperates with the transmission screw 11. The two sides of the bottom of the movable frame 1201 are provided with fitting grooves 1202. The fitting grooves 1202 are slidably connected to the frame rod 2. A connecting pipe 1203 is provided on the outer wall of one side of the fitting groove 1202. A liquid outlet groove 1204 is provided on the outer wall of the other side of the movable frame 1201. The interior of the movable frame 1201 is connected to the connecting pipe 1203. An installation shaft 1208 is rotatably connected inside the movable frame 1201.

[0038] Furthermore, in the above technical solution, a servo motor 7 is provided at the bottom of the support block 1, and a drive gear 8 is provided at the output end of the servo motor 7. A sliding groove 6 is provided at the top of the gearbox and transmission 4, and a driven gear 5 is provided at the bottom of the gearbox and transmission 4. The driven gear 5 is connected to the input end of the gearbox and transmission 4, and the driven gear 5 meshes with the drive gear 8. The servo motor 7 drives the drive gear 8 to rotate, and then the drive gear 8 drives the meshed driven gear 5 to rotate. The driven gear 5 drives the gears inside the gearbox and transmission 4 to rotate. The gearbox and transmission 4 can drive the transmission screws 11 at both ends to rotate separately or simultaneously. The rotation speeds of the transmission screws 11 at both ends of the gearbox and transmission 4 can also be different, causing the end tooth clamping structure 12 to move inward simultaneously to fix the end teeth.

[0039] Furthermore, in the above technical solution, a robotic arm 13 is provided between the two mounting blocks 3. One end of the robotic arm 13 is rotatably connected to an end tooth fixing structure 14. The bottom of the end tooth fixing structure 14 and the top of the sliding groove 6 are located at the same cross section. The robotic arm 13 drives the inner wall of the end tooth fixing structure 14 to fit against the outer wall of the end tooth. Then, the end tooth fixing structure 14 clamps the end tooth. The robotic arm 13 drives the end tooth fixing structure 14 to move and rotate, so that the end tooth fixing structure 14 can drive the end tooth to rotate 180°, thereby realizing the processing of the front and back sides of the end tooth.

[0040] Furthermore, in the above technical solution, a worm gear 10 is rotatably connected to the outer wall of one side of the mounting block 3. One end of the worm gear 10 is connected to the output end of the drive motor 9, and the drive motor 9 is fixedly connected to the outer wall of the mounting block 3. A worm wheel 15 is slidably connected to the inner wall of the sliding groove 6, and the worm wheel 15 and the worm gear 10 cooperate with each other. The unfixed end teeth are in contact with the bottom of the worm wheel 15. Then, the drive motor 9 drives the worm gear 10 to rotate, and the worm gear 10 drives the meshing worm wheel 15 to rotate, so that the unfixed end teeth can rotate and adjust the fixed angle of the end teeth.

[0041] Furthermore, in the above technical solution, the two movable frames 1201 are arranged opposite to each other, and the bottom of the opposite surface of the movable frames 1201 is inclined. The gearbox and the transmission 4 are provided with transmission screws 11 at both ends, and the transmission screws 11 drive the movable frames 1201 to move inward, so that the inclined surface at the bottom of the movable frames 1201 presses against the end teeth, and then the end teeth move upward to fit against the vertical surface of the movable frames 1201, so that the tooling fixes the end teeth. Moreover, the two sets of movable frames 1201 can fix the end teeth from the inside and outside of the end teeth at the same time.

[0042] Furthermore, in the above technical solution, a rotating shaft 1205 is rotatably connected to the inner wall of the liquid outlet tank 1204, and a rotating plate 1206 is rotatably connected to the outer wall of the rotating shaft 1205. A planar spiral spring 1207 is provided at one end of the rotating plate 1206, and one end of the planar spiral spring 1207 is connected to the liquid outlet tank 1204. Multiple rotating plates 1209 are arranged in a ring array on the outer wall of the mounting shaft 1208, and the cross-section of the rotating plate 1209 with the same cross-section is equal to the cross-section inside the moving frame 1201. The coolant enters the interior of the moving frame 1201 through the connecting pipe 1203 and pushes the rotating plate 1209 to rotate. When the rotating plate 1209 is in contact with the inner side of the moving frame 1201, the pressure of the coolant at the upper end of the moving frame 1201 decreases, so that the sprayed coolant can flow inward on the surface of the end teeth, increasing the spray range of the coolant.

[0043] Working principle of this invention:

[0044] Refer to the instruction manual appendix Figure 1-7 First, when it is necessary to fix the end teeth for surface cutting, the end teeth are placed on the top of the worm gear 15. Then, the drive motor 9 drives the worm gear 15 to rotate through the worm 10. The worm gear 15 drives the end teeth to rotate and adjust the angle of the end teeth. Then, the servo motor 7 is started. The servo motor 7 drives the drive gear 8 to rotate. The drive gear 8 drives the driven gear 5 to rotate, so that the driven gear 5 drives the gears inside the gearbox and transmission 4 to rotate. Then, the output end of the gearbox and transmission 4 drives the transmission screw 11 to rotate. The transmission screw 11 drives the bottom of the moving frame 1201 to fit against the outer and inner walls of the end teeth. The inclined surface at the bottom of the moving frame 1201 presses against the inner and outer walls of the end teeth, so that the end teeth can move upward along the inclined surface at the bottom of the moving frame 1201 and enter the vertical surface at the top of the moving frame 1201, so that the tooling fixes the end teeth.

[0045] Then, during the machining of the end teeth, the water pump draws coolant into the interior of the moving frame 1201 through the connecting pipe 1203. The coolant drives the rotating plate 1209 to rotate. Then, a guide plate is set at the bottom of the rotating plate 1209. When one end of the rotating plate 1209 is in contact with the inner wall of the moving frame 1201, the coolant pressure at the upper end of the moving frame 1201 decreases, and it cannot push the rotating plate 1206 to rotate. The flat spiral spring 1207 drives the rotating plate 1206 to reset, reducing the cross-sectional area of ​​the liquid outlet 1204, so that the sprayed coolant can move along the horizontal surface of the end teeth towards the moving frame 1201, increasing the coverage area of ​​the coolant.

[0046] After one side of the end tooth is processed, the robotic arm 13 drives the end tooth fixing structure 14 to fit against the outer wall of the end tooth. Then, the robotic arm 13 drives the end tooth to move upward and rotate 180° through the end tooth fixing structure 14. Then, the end tooth is put back into the moving frame 1201 for fixing. The lifting and flipping robotic arm 13 and the end tooth fixing structure 14 can be the models available on the market.

[0047] The above-described embodiments are merely illustrative of certain implementations of the present invention, and are described in a relatively specific and detailed manner. However, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A large diameter end tooth inner and outer fixation tool characterized by, The utility model relates to a support block (1), the support block (1) outer wall is provided with frame rod (2), one end of frame rod (2) is provided with mounting block (3), the mounting block (3) and support block (1) middle are provided with gear box and transmission (4), the both ends output of gear box and transmission (4) are provided with transmission screw rod (11), and the mechanical arm (13) is provided between two mounting blocks (3), one end of mechanical arm (13) is rotatably connected with end tooth fixed structure (14), and the bottom of end tooth fixed structure (14) is located with the top of sliding slot (6) in the same cross section. End tooth clamping structure (12) includes moving frame (1201), the through hole of moving frame (1201) bottom is matched with transmission screw rod (11), and the both sides of moving frame (1201) bottom are provided with the abutment groove (1202) of setting up, the abutment groove (1202) is slidably connected with frame rod (2), the outer wall of one side of abutment groove (1202) is provided with connecting pipe (1203), the outer wall of other side of moving frame (1201) is provided with liquid outlet groove (1204), the inside of moving frame (1201) is communicated with connecting pipe (1203), and the inside of moving frame (1201) is rotatably connected with mounting shaft (1208), the inner wall of liquid outlet groove (1204) is rotatably connected with rotary shaft (1205), the outer wall of rotary shaft (1205) is rotatably connected with rotating plate (1206), one end of rotating plate (1206) is provided with plane vortex spring (1207), one end of plane vortex spring (1207) is connected with liquid outlet groove (1204), the outer wall of mounting shaft (1208) is annular array with a plurality of rotating plates (1209), and the cross section of rotating plate (1209) of same section is equal with the cross section of inside of moving frame (1201). The bottom of support block (1) is provided with servo motor (7), and the output end of servo motor (7) is provided with driving gear (8).

2. The large-diameter end tooth inner and outer fixing tool according to claim 1, characterized in that: The top of gear box and transmission (4) is provided with sliding slot (6), the bottom of gear box and transmission (4) is provided with driven gear (5), the input end of driven gear (5) is connected with gear box and transmission (4), and driven gear (5) is engaged with driving gear (8).

3. The large diameter end tooth inner and outer fixing tool according to claim 1, characterized in that: The outer wall of one side of mounting block (3) is rotatably connected with worm (10), one end of worm (10) is connected with the output end of driving motor (9), and driving motor (9) is fixedly connected to the outer wall of mounting block (3).

4. The large-diameter end tooth inner and outer fixing tool according to claim 1, characterized in that: The inner wall of sliding slot (6) is slidably connected with worm wheel (15), and worm wheel (15) is matched with worm (10).

5. The large diameter end tooth inner and outer fixing tool according to claim 3, characterized in that: The two moving frames (1201) are oppositely arranged, and the bottom of the opposite surface of the moving frame (1201) is inclined.

6. The large diameter end tooth inner and outer fixing tool according to claim 1, characterized in that: ​

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