Machining equipment for large-scale circular-arc-tooth-trace cylindrical gear

Abstract

The invention belongs to the field of cylindrical gear machining, and discloses a machining device for a large circular-arc-tooth-trace cylindrical gear, the machining device comprises a machining table, a gear body and a milling cutter, one end of the machining table is provided with a lifting plate through an adjusting mechanism, the lower portion of the lifting plate is fixedly connected with the milling cutter through a milling cutter assembly, and the lifting plate is provided with a flushing mechanism matched with the milling cutter; a rotary clamping mechanism is arranged at the end, away from the adjusting mechanism, of the machining table and fixedly connected with the gear body. Rapid centering of the gear body and the positioning table is achieved, the deviated gear body can be conveniently adjusted according to a detection result, center deviation of the gear during initial installation can be compensated, it is ensured that the gear machining reference and the theoretical axis are strictly overlapped, and through the arranged gravity center adjusting piece, in the milling process, the gear body can be conveniently and rapidly centered. The center of gravity is ensured to be consistent with the axis of a machining center, the problem of center-of-gravity shift caused by tooth groove milling is effectively solved, and the phenomena of tooth breakage and unstable meshing are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of cylindrical gear processing, and specifically to a processing device for large arc-tooth cylindrical gears. Background Art

[0002] As a new type of transmission gear, large arc-tooth cylindrical gears are defined as cylindrical gears with a tooth line in the form of an arc with continuous curvature change and a curvature gradient in the tooth width direction. Power transmission is achieved through the meshing of space curves with special geometric configurations, which has advantages such as uniform contact stress distribution, good transmission smoothness, and high load-bearing capacity. It is mainly applied to large torque transmission scenarios such as heavy machinery and ship propulsion systems. However, due to its special curve meshing principle and the tooth line shape with continuous curvature change, the processing difficulty has increased significantly. Currently, there are many deficiencies in the processing methods of arc-tooth cylindrical gears. For example, it is impossible to ensure equal circumferential tooth thickness, resulting in problems such as tooth breakage and unstable meshing during gear transmission. Therefore, processing equipment is required for large arc-tooth cylindrical gears to ensure the processing quality and accuracy.

[0003] Large arc-tooth cylindrical gears usually refer to gears with a diameter greater than 1 meter and a weight exceeding 1 ton. Their size and weight pose higher requirements for processing equipment.

[0004] When the existing processing equipment for large arc-tooth cylindrical gears is in use, due to the relatively large size of the gears, it is not easy to adjust and move them as needed during the processing. Usually, hoisting equipment such as cranes is required to hoist and move the gears, and then multiple clamping devices (such as jaws) are used to position and fix the gears before milling and other processing.

[0005] Before processing, the existing processing equipment for large arc-tooth cylindrical gears needs to perform centering operations on the gear blanks through special fixtures (such as hydraulic chucks or modular positioning devices).

[0006] However, there are certain defects in actual use: 1. When processing gears, in order to ensure processing accuracy, centering operations need to be performed on the gears. However, due to the large size and relatively heavy weight of the gears, it is not convenient to perform adjustment operations during adjustment. 2. During the gear milling process, as a set of tooth grooves is milled, the center of gravity of the gear changes accordingly. At this time, the center of gravity and the center are not on the same axis, and the center of gravity cannot be adjusted, which will affect the accuracy of subsequent processing.

[0007] In view of the above problems, it is urgent to optimize the processing equipment for large arc-tooth cylindrical gears to improve processing accuracy and efficiency and meet the requirements of the manufacturing field. Summary of the Invention

[0008] The present invention aims to provide a processing device for large circular arc tooth profile cylindrical gears to solve the problems in the prior art. Due to the large size and relatively heavy weight of the gears, it is not convenient to adjust during the adjustment process. Moreover, as a set of tooth grooves is milled, the center of gravity of the gear changes. At this time, the non-alignment of the center of gravity and the center on the same axis will affect the accuracy of subsequent processing.

[0009] To achieve the above object, the present invention provides the following technical solutions: The technical solution provided by the present invention is: a processing device for large circular arc tooth profile cylindrical gears, including a processing table and a milling cutter assembly for processing the gear body. It is characterized in that: a rotating clamping mechanism is arranged on the processing table, and the rotating clamping mechanism is fixedly connected to the gear body; the rotating clamping mechanism includes a driving motor arranged at one end of the processing table away from the lifting plate, the output end of the driving motor is fixedly provided with a mounting plate, the top of the mounting plate is provided with a positioning table matching the gear body, so that the rotation axis of the positioning table is vertical. A placement plate is arranged on the positioning table through a center adjustment component. A hole matching the positioning table is opened inside the placement plate. The gear body is sleeved outside the placement plate, and a center of gravity adjustment part for adjusting the center of gravity of the gear body is arranged at the top of the placement plate. The center of gravity adjustment part is used to adjust the overall center of gravity of the placement plate and the gear body on the rotation axis of the positioning table. Adjustment holes matching the center of gravity adjustment part are equidistantly opened on the circumferential side surface of the top of the placement plate.

[0010] Preferably, in order to conveniently center the gear body to be processed and ensure the processing accuracy, the center adjustment component includes insertion slots equidistantly opened on the circumferential side surface of the inner wall of the hole of the placement plate. Insertion blocks are inserted into the insertion slots. Center adjustment plates are arranged on the inner arc surfaces of the insertion blocks. And insertion positioning parts corresponding to the insertion slots one by one are equidistantly arranged on the outer arc surface of the positioning table.

[0011] Preferably, in order to conveniently drive the milling cutter to work through the milling cutter assembly and also conveniently drive the connection mechanism to work, and then cooperate with the flushing assembly to spray cutting fluid during the processing to lubricate and cool the processing area. One end of the processing table is provided with a lifting plate through an adjustment mechanism. The lifting plate is provided with a milling cutter assembly. The milling cutter assembly includes a double-shaft motor fixedly arranged in the middle of the bottom end of the lifting plate. The two ends of the output shaft of the double-shaft motor are fixedly provided with rotating shafts. The end of the rotating shaft close to the gear body is fixedly connected to the milling cutter. The rotating shaft away from the gear body is connected to the flushing mechanism through a connection mechanism. The connection mechanism includes a main bevel gear fixedly connected to the end of the rotating shaft away from the gear body. A driven bevel gear is meshed on one side of the main bevel gear. A rotating rod is fixedly arranged in the middle of the driven bevel gear. The rotating rod penetrates through the lifting plate and extends upwards to be fixedly provided with a crankshaft. The top of the crankshaft is connected to the horizontal section of the L-shaped plate through a bearing. The bottom of the vertical section of the L-shaped plate is fixedly connected to the lifting plate.

[0012] Preferably, in order to spray cutting fluid during the processing to lubricate and cool the processing area, the flushing mechanism includes a temporary storage tank fixedly arranged on the lifting plate. One end of the temporary storage tank is fixedly provided with a liquid outlet pipe, and a nozzle matching the milling cutter is arranged below the liquid outlet pipe. A liquid replenishing component is arranged at one end of the temporary storage tank away from the liquid outlet pipe.

[0013] Preferably, in order to conveniently cooperate with the milling cutter assembly to supplement and spray the cutting fluid, the liquid replenishing component includes fixing frames arranged equidistantly on the lifting plate. A piston column is fixedly arranged between the two fixing frames. A piston slides inside the piston column. A sealing ring that is in interference fit with the inner wall of the piston column is sleeved outside the piston. A piston cavity is formed between the inner part of the piston column near the temporary storage tank and the piston. The temporary storage tank is connected to the piston cavity through a liquid filling pipe. A liquid storage tank is also fixedly arranged on one side of the lifting plate. The liquid storage tank is connected to the piston cavity through a liquid inlet pipe. One-way valves are arranged on both the liquid inlet pipe and the liquid filling pipe.

[0014] Through the milling cutter assembly cooperating with the connecting mechanism and the flushing mechanism, the milling cutter assembly can not only drive the milling cutter to rotate, facilitating subsequent processing operations on the gear body, but also drive the connecting mechanism to rotate and work conveniently. It can conveniently supplement and spray the cutting fluid. When the milling cutter is working, through the self - supply cooling mechanism using the crank - piston linkage system, continuous and stable spraying of the cutting fluid can be realized, and the cutting fluid can be sprayed on the processing area, thereby lubricating and cooling the processing area. The dual - shaft motor synchronously drives the cutting and cooling systems to realize the coordinated operation of milling processing and cooling lubrication, reducing energy consumption compared with the traditional split - type power design. And during the milling processing, the spraying of the cutting fluid is synchronously adjusted according to the milling speed, and accordingly, the spraying frequency and flow rate of the cutting fluid are synchronously adjusted. During high - speed cutting, the system automatically increases the spraying frequency of the cutting fluid to ensure timely cooling; while during low - speed cutting, the spraying frequency is correspondingly reduced to achieve precise cooling control and avoid waste of the cutting fluid.

[0015] Preferably, in order to conveniently drive the piston to reciprocate, and thus supplement and spray the cutting fluid, a collar is sleeved in the middle of the crankshaft. A rotating part is arranged in the middle of the side wall of the collar, and the end of the rotating part is connected to the middle of the piston.

[0016] Preferably, in order to conveniently move and adjust the milling cutter and adjust the distance from the gear body, and at the same time facilitate movement along the path of the circular arc tooth line, the adjusting mechanism includes linear guide rail devices symmetrically arranged on the lifting plate. Guide rail sliders are slidably matched at equal intervals on the linear guide rail devices. Bottom plates are symmetrically arranged at the tops of the guide rail sliders. Mounting clamping plates are arranged on the bottom plates. Top plates are arranged at the tops of the mounting clamping plates. Vertical plates are formed between the bottom plates, mounting clamping plates and top plates in the same vertical direction. Lifting guide grooves are formed on the side walls of the two vertical plates on the same guide rail slider that are close to each other. Lifting guide blocks are slidably matched in the lifting guide grooves. A lifting block is fixedly arranged between the two lifting guide blocks. The lifting block is fixedly connected to the lifting plate through a connecting rod.

[0017] Preferably, in order to conveniently perform replacement and installation operations on the mounting clamping plate, adapt to different gears with circular arc tooth lines, and facilitate processing and use, both between the bottom plate and the mounting clamping plate and between the mounting clamping plate and the top plate are connected through a mounting mechanism. The mounting mechanism includes mounting grooves formed at the tops and bottoms of the mounting clamping plates. Mounting blocks matching the mounting grooves are fixedly arranged at the bottoms of the top plates and the tops of the bottom plates.

[0018] Preferably, in order to perform positioning and fixing after installation and fixation to ensure the firmness of the assembly, and also facilitate replacement operations, positioning holes are symmetrically formed on the side walls of the mounting blocks and the side walls of the mounting clamping plates, and positioning columns are inserted into the positioning holes.

[0019] Through the provided adjusting mechanism and mounting mechanism, it is convenient to select a suitable mounting clamping plate according to the curvature of the circular arc tooth line of the gear body to be processed, so that the path of the subsequent movement of the milling cutter is equivalent to the circular arc tooth line. It is convenient to move and adjust with the milling cutter. Cooperating with the rotation clamping mechanism, it is convenient to process the circular arc tooth line of the gear body. When processing different gear bodies, only different mounting clamping plates need to be replaced for adaptation, which is relatively simple and convenient, reduces costs at the same time, and the split setting not only facilitates assembly according to production needs, but also facilitates separate replacement in case of damage, etc., reducing the cost of maintenance and replacement. The rotation clamping mechanism can conveniently clamp and fix the gear body, and at the same time facilitate rotation according to needs, facilitating processing operations on the circumferential side of the gear body.

[0020] Preferably, in order to ensure stability during rotation, support guide rods are also equidistantly arranged at the bottom of the mounting plate, and annular guide grooves matching the support guide rods are formed on the processing table.

[0021] The beneficial effects of this technical solution are: Compared with the prior art, the present invention can quickly and conveniently perform centering operations on the gear body to be processed, make the center of the gear body coincide with the axis of the rotation on the positioning table, ensure the processing accuracy, and the adjustment is relatively simple and convenient, adapting to different deviations.

[0022] The center-of-gravity adjusting member can adjust the center of gravity of the gear body on the axis of rotation of the positioning table during the milling process, effectively solving the problem of center-of-gravity deviation caused by tooth groove milling and avoiding tooth breakage and unstable meshing phenomena.

[0023] (3) The provided placement plate can facilitate the placement and fixation of the gear body, making it convenient for processing and use. At the same time, the placement plate can be flexibly selected and replaced according to the size of the gear body, improving applicability. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of a processing device for large arc-tooth profile cylindrical gears proposed by the present invention; Figure 2 It is a schematic structural diagram of the adjusting mechanism in a processing device for large arc-tooth profile cylindrical gears proposed by the present invention; Figure 3 It is a schematic structural diagram of the lifting plate in a processing device for large arc-tooth profile cylindrical gears proposed by the present invention; Figure 4 It is a schematic structural diagram of the driving mechanism and the flushing mechanism in a processing device for large arc-tooth profile cylindrical gears proposed by the present invention; Figure 5 It is a partial schematic structural diagram of the driving mechanism and the flushing mechanism in a processing device for large arc-tooth profile cylindrical gears proposed by the present invention; Figure 6 It is a schematic structural diagram of the rotating clamping mechanism in a processing device for large arc-tooth profile cylindrical gears proposed by the present invention; Figure 7 It is a schematic structural diagram of the placement plate in a processing device for large arc-tooth profile cylindrical gears proposed by the present invention; Figure 8 It is a schematic structural diagram of the mounting plate in a processing device for large arc-tooth profile cylindrical gears proposed by the present invention; Figure 9 It is one of the schematic structural diagrams of the plug-in block and the center adjustment plate in a processing device for large arc-tooth profile cylindrical gears proposed by the present invention; Figure 10 It is the second schematic structural diagram of the plug-in block and the center adjustment plate in a processing device for large arc-tooth profile cylindrical gears proposed by the present invention; Figure 11 It is a schematic structural diagram among the bottom plate, the mounting clamping plate and the top plate in a processing device for large arc-tooth profile cylindrical gears proposed by the present invention.

[0025] The names of the corresponding reference signs in the drawings are as follows: 1, processing table; 2, gear body; 3, mounting plate; 4, linear guide device; 5, guide rail slider; 6, mounting clamp; 7, bottom plate; 8, top plate; 9, lifting plate; 10, lifting guide groove; 11, temporary storage box; 12, liquid storage tank; 13, lifting block; 14, lifting guide block; 15, connecting rod; 16, milling cutter; 17, liquid outlet pipe; 18, nozzle; 19, L-shaped plate; 20, piston column; 21, double-shaft motor; 22, rotating shaft; 23, main bevel gear; 24, driven bevel gear; 25, crankshaft; 26, collar; 27, rotating member; 28, fixing bracket; 29, liquid filling pipe; 30, one-way valve; 31, liquid inlet pipe; 32, piston; 33, sealing ring; 34, positioning table; 35, driving motor; 36, support guide rod; 37, annular guide groove; 38, mounting groove; 39, mounting block; 40, positioning column; 41, positioning hole; 42, placing plate; 43, center adjusting member; 44, adjusting hole; 45, inserting groove; 46, inserting block; 47, center adjusting plate; 48, inserting positioning member. Detailed implementation manners

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] The specific implementation process is as follows: Embodiment 1: Please refer to Figures 1-10 , a technical solution provided by the present invention: a processing device for large circular arc tooth profile cylindrical gears, including a processing table 1 for processing the circular arc tooth profile of the gear body 2. For the gear body 2, its processed shape is as shown in Figure 6 , and it can also be circular arc tooth profile cylindrical gears with other different curvatures, which is a relatively mature technology and will not be elaborated here. In order to conveniently clamp and fix the gear body 2 and rotate the gear body 2 during the processing to facilitate the processing of the circular arc tooth profile, a rotating clamping mechanism is provided at one end of the processing table 1 away from the lifting plate 9. The rotating clamping mechanism includes a driving motor 35 provided at one end of the processing table 1 away from the lifting plate 9. The output end of the driving motor 35 is fixedly provided with a mounting plate 3, which can conveniently rotate and adjust the mounting plate 3. The bottom end of the mounting plate 3 is also equidistantly provided with support guide rods 36. An annular guide groove 37 matching the support guide rods 36 is opened on the processing table 1. The top end of the mounting plate 3 is provided with a positioning table 34 matching the gear body 2. The shape of the positioning table 34 is as shown in Figure 8As described above, it is frustum-shaped. A placement tray 42 is provided on the positioning table 34 through a central adjustment assembly. For the placement tray 42, as Figure 7 shown, its shape is composed of two cylinders. The bottom cylinder is one-fifth of the upper cylinder, which is convenient for placing, supporting, and clamping the gear body 2. Multiple groups of sizes of the placement tray 42 can be set according to the size of the gear body 2, which is convenient for adapting to the placement, clamping, and use of gear bodies 2 of different specifications and sizes. In order to facilitate the hoisting and moving of the placement tray 42 and the gear body 2, a lifting ring (not shown in the figure) can be welded to the circumferential side of the bottom of the placement tray 42, or other connecting components can be used, which is convenient for connecting with a hoisting device, etc., and is convenient for hoisting. The number of lifting rings is preferably three groups, or other numbers, to ensure the stability during the hoisting process. A hole (matching the frustum of the positioning table 34) is opened inside the placement tray 42, which is convenient for placement and positioning. At the same time, other shapes can also be set according to the actual situation. This is a relatively mature technology and will not be elaborated here. The placement tray 42 is sleeved outside the gear body 2; And a center-of-gravity adjustment member 43 for adjusting the center of gravity of the gear body 2 is provided at the top of the placement tray 42. For the center-of-gravity adjustment member 43, it can be an expansion rod as Figure 6 shown (it can be adjusted manually or electrically), so as to conveniently adjust the center of gravity of the gear body 2 before processing, making it on the same axis as the center of the gear body 2 processing. A center-of-gravity detection system (not shown in the figure) is provided inside the corresponding placement tray 42, which mainly consists of high-precision pressure sensors (such as FESTO pressure sensors) to form a grid detection network. Each sensor independently measures the local pressure value, and calculates the acting point of the resultant force, that is, the center-of-gravity position, through the pressure distribution weight, so as to facilitate the detection of the center of gravity and the adjustment operation. For the center-of-gravity adjustment member 43, it can also be made of a metal with good ductility (such as copper), which is convenient for adjusting the center of gravity through operations such as bending, or other rod bodies, etc., which is convenient for adjusting the center of gravity of the gear body 2 during the milling process of the gear body 2, and thus ensures the processing accuracy. Adjustment holes 44 matching the center-of-gravity adjustment member 43 are equidistantly opened on the circumferential side of the top of the placement tray 42. Preferably, the number of adjustment holes 44 can be six groups or other numbers, which is convenient for connecting and adjusting with the center-of-gravity adjustment member 43, and can be connected and assembled in a detachable manner such as plugging or screw meshing, which is convenient for adjustment operation; Please refer to Figures 6-10, the central adjustment component includes insertion slots 45 equidistantly formed on the circumferential side of the inner wall of the holes in the placement plate 42. The number of insertion slots 45 is preferably three groups. Insertion blocks 46 are inserted into the insertion slots 45, corresponding one by one to the number of insertion slots 45. Central adjustment plates 47 are adhesively bonded to the inner arc surfaces of the insertion blocks 46. For the central adjustment plate 47, its thickness is 0 - 1 cm. Preferably, it can be 0, 0.1, 0.2, ……, 0.9, 1.0 cm. Different thicknesses can also be set according to the actual precision. When placing the gear body 2 to be processed on the placement plate 42, measure the centers of the gear body 2 and the placement plate 42. If there is no deviation, it can be directly placed on the positioning table 34. If there is a deviation, by inserting the insertion block 46 (and selecting a central adjustment plate 47 with an appropriate thickness) into the insertion slot 45, it can be ensured that the center of the gear body 2 coincides with the center of the positioning table 34, facilitating subsequent milling processing and ensuring the machining precision. The measurement of the center can be achieved by traditional mechanical measurement methods (such as a coordinate measuring machine) or optical and sensor technologies (such as a roundness instrument), etc., which are relatively mature technologies and will not be elaborated here. And insertion positioning members 48 corresponding one by one to the insertion slots 45 are equidistantly arranged on the outer arc surface of the positioning table 34, which does not affect subsequent processing and use. Support guide rods 36 are also equidistantly arranged at the bottom end of the mounting plate 3. Annular guide grooves 37 matching the support guide rods 36 are formed on the processing table 1. Corresponding balls are provided at the bottom ends of the support guide rods 36 and can roll conveniently in the annular guide grooves 37, thereby ensuring the stability of the mounting plate 3 during rotation.

[0028] During use, the gear body 2 to be processed can be placed on the placement plate 42 through a hoisting device. Measure the centers of the gear body 2 and the placement plate 42. If there is no offset, it can be directly placed on the positioning table 34. If there is an offset, the insertion block 46 can be inserted into the insertion slot 45, and a center adjustment plate 47 with an appropriate thickness can be selected according to the offset situation, so as to ensure that the center of the gear body 2 coincides with the center of the positioning table 34, facilitating subsequent milling processing. After the placement plate 42 and the positioning table 34 are placed, the insertion positioning member 48 can be used to complete positioning and fixing, avoiding subsequent offset and ensuring stable placement. It is also convenient to remove the placement plate 42 later. Before processing, the center of gravity can be adjusted through the center of gravity adjustment member 43 in cooperation with the adjustment hole 44, so as to ensure that the center of gravity and the center are on the same axis during milling processing. After one tooth groove is milled, the driving motor 35 can be operated to drive the mounting plate 3 to rotate, and then drive the gear body 2 to rotate and adjust, facilitating the processing of the next tooth groove. During the rotation process, the support guide rod 36 slides in the annular guide groove 37 to ensure stability. After the rotation adjustment is completed, the center of gravity can be adjusted again through the center of gravity adjustment member 43 in cooperation with the adjustment hole 44, so as to ensure that the center of gravity and the center are on the same axis during milling processing, and then milling processing is carried out. Repeating the above steps can complete the processing operation of the gear body 2.

[0029] Embodiment 2: Please refer to Figures 1-3, a technical solution provided by the present invention: a processing device for large arc-tooth cylindrical gears. In order to conveniently move the milling cutter 16 along the path of the arc tooth line processed by the gear body 2 and facilitate the processing of the gear body 2, an adjustment mechanism is provided on the processing table 1. The adjustment mechanism includes linear guide rail devices 4 symmetrically arranged on the lifting plate 9. The linear guide rail devices 4 are equidistantly and slidably fitted with guide rail sliders 5, which can be driven by a linear motor to drive the guide rail sliders 5 to move reciprocally, or can be achieved by other means, such as a reciprocating lead screw cooperating with a motor and other means, which are relatively mature technologies and will not be elaborated here. The top ends of the guide rail sliders 5 are symmetrically provided with bottom plates 7. An installation clamping plate 6 is provided on the bottom plate 7. The top end of the installation clamping plate 6 is provided with a top plate 8. The bottom plate 7, the installation clamping plate 6, and the top plate 8 in the same vertical direction form a vertical plate. On the side walls of the two vertical plates of the same guide rail slider 5 that are close to each other, lifting guide grooves 10 are opened. A lifting guide block 14 is slidably fitted in the lifting guide grooves 10. A lifting block 13 is fixedly provided between the two lifting guide blocks 14. The lifting block 13 is fixedly connected to the lifting plate 9 through a connecting rod 15. For the lifting block 13 and the lifting guide block 14, a driving device such as an electric push rod can be installed between the guide rail slider 5 and the lifting block 13, or other driving devices can also be used. When an electric push rod is used for driving, the two ends of the electric push rod can be rotatably connected to the guide rail slider 5 and the lifting block 13 through a ball hinge, etc. Then, by the telescopic movement of the electric push rod, the lifting guide block 14 of the lifting block 13 can be reciprocally moved in the lifting guide grooves 10, and then the movement adjustment of the lifting plate 9 and the milling cutter 16 can be driven, which is convenient for moving adjustment along the path of the arc tooth line processed by the gear body 2. This is a relatively mature technology and will not be elaborated here. As Figure 1 shown, an empty groove is also opened on the processing table 1 between the gear body 2 and the lifting plate 9. A collecting hopper is provided in the empty groove to facilitate the collection of the processed debris and cutting fluid, which is convenient for subsequent unified treatment operations.

[0030] During use, select a suitable lifting guide groove 10 according to the need for processing the arc tooth line of the gear body 2 to ensure that the milling cutter 16 can move along the path of the processed arc tooth line during the up and down movement. By the operation of the linear guide rail device 4, the guide rail slider 5 can be moved on the linear guide rail device 4, and then the distance between the milling cutter 16 and the gear body 2 to be processed can be conveniently adjusted. After the adjustment is completed, by the operation of the driving device, the lifting guide block 14 can be moved in the lifting guide grooves 10, driving the lifting block 13, the lifting plate 9, and the milling cutter 16 to move, and milling processing can be carried out.

[0031] Embodiment Three: Please refer to Figures 1-3 and Figure 11, a technical solution provided by the present invention: a processing device for large arc-tooth cylindrical gears. In order to replace the mounting clamp 6 according to the usage requirements, lifting guide grooves 10 with different arc curvatures are provided on the corresponding different mounting clamps 6, so as to adapt to the processing of different arc-tooth cylindrical gears, and it is convenient to select and assemble according to the needs. The bottom plate 7 and the mounting clamp 6, and between the mounting clamp 6 and the top plate 8 are all connected by a mounting mechanism. The mounting mechanism includes mounting grooves 38 opened at the top and bottom ends of the mounting clamp 6, and the cross-section is T-shaped, which can be used for guiding and limiting, or can be other shapes. The bottom end of the top plate 8 and the top end of the bottom plate 7 are both fixedly provided with mounting blocks 39 that match the mounting grooves 38, and the shape of the mounting blocks 39 is adapted to the shape of the mounting grooves 38. Positioning holes 41 are symmetrically opened on the side walls of the mounting blocks 39 and the side walls of the mounting clamp 6. A positioning column 40 is inserted into the positioning holes 41, which can conveniently position and fix the mounted mounting blocks 39 to ensure the stability of the connection and assembly. For the positioning column 40 and the positioning holes 41, the positioning column 40 can be a threaded rod, and the positioning holes 41 are threaded holes meshing with the threaded rod, which is convenient for installation and positioning, or can be other detachable fixed connections, which is convenient for disassembly and replacement, and at the same time ensures stability during use.

[0032] During use, when selecting a suitable mounting clamp 6 for the path of processing the arc tooth line of the gear body 2, ensure that the arc curvature of the lifting guide groove 10 of the mounting clamp 6 corresponds to the arc tooth line of the corresponding gear body 2. After the selection is completed, the mounting block 39 can be inserted and assembled through the cooperation of the mounting groove 38, and then the positioning is carried out by inserting the positioning column 40 into the positioning hole 41 to ensure the stable and firm installation without affecting subsequent use. When subsequent replacement is required, the positioning column 40 can be first removed from the positioning hole 41 to lose the limit on the mounting block 39, which is convenient for removing the mounting block 39 from the mounting groove 38, and thus the disassembly is completed.

[0033] Embodiment Four: Please refer to Figures 1-5, a lifting plate 9 is provided on the processing table 1 through an adjusting mechanism. A milling cutter assembly is provided below the lifting plate 9, and a flushing mechanism matching the milling cutter 16 is provided on the lifting plate 9. The milling cutter assembly includes a double-shaft motor 21 fixedly arranged in the middle of the bottom end of the lifting plate 9, which can be fixedly installed on the bottom end of the lifting plate 9 through a mounting seat and can be fixedly connected by screws to ensure the stability of the double-shaft motor 21 during operation. Both ends of the output shaft of the double-shaft motor 21 are fixedly installed with rotating shafts 22 through couplings. To ensure the stability of the rotating shafts 22 during rotation, bearings are provided outside both rotating shafts 22 and are fixedly connected to the inner rings of the bearings. The outer rings of the bearings are fixedly connected to the bottom of the lifting plate 9 through vertical rods to ensure the stability of the rotating shafts 22 during rotation. The end of the rotating shaft 22 close to one end of the gear body 2 is fixedly connected to the milling cutter 16, and the rotating shaft 22 far from the gear body 2 is connected to the flushing mechanism through a connecting mechanism. The connecting mechanism includes a main bevel gear 23 fixedly connected to the end of the rotating shaft 22 far from the gear body 2 and can be fixedly connected by welding. A driven bevel gear 24 is meshed on one side of the main bevel gear 23. A rotating rod is fixedly provided in the middle of the driven bevel gear 24 and can be fixedly provided by welding. The rotating rod penetrates through the lifting plate 9 and extends upward to be fixedly provided with a crankshaft 25. The top end of the crankshaft 25 is connected to the horizontal section of the L-shaped plate 19 through a bearing. The bottom of the vertical section of the L-shaped plate 19 is fixedly connected to the lifting plate 9 to ensure the stability of the crankshaft 25 during rotation; In order to perform flushing, lubrication and cooling during the machining process of the gear body 2 to ensure the machining quality, the flushing mechanism includes a temporary storage tank 11 fixedly arranged on the lifting plate 9, which is convenient for temporarily storing the cutting fluid and facilitating the spraying of lubrication and cooling during subsequent machining. One end of the temporary storage tank 11 is fixedly provided with a liquid outlet pipe 17, and a spray head 18 matching the milling cutter 16 is installed under the liquid outlet pipe 17. In order to improve the stability during use and not affect the spraying operation, a rectangular groove is formed in the middle of the front end of the lifting plate 9 near the gear body 2, and the liquid outlet pipe 17 is fixed to the side wall of the groove through a fixing rod to ensure the stability and firmness of the liquid outlet pipe 17. A liquid supplement component is provided at one end of the temporary storage tank 11 away from the liquid outlet pipe 17, which can facilitate the pressurized liquid supplement of the temporary storage tank 11 and facilitate lubrication and cooling during the machining process. The liquid supplement component includes fixing frames 28 welded on the lifting plate 9 at equal intervals. A piston column 20 is fixedly arranged between the two fixing frames 28. A piston 32 is slidably arranged inside the piston column 20. A sealing ring 33 that is in interference fit with the inner wall of the piston column 20 is sleeved outside the piston 32. A piston cavity is formed between the inner part of the piston column 20 near the temporary storage tank 11 and the piston 32. The temporary storage tank 11 is connected to the piston cavity through a liquid filling pipe 29. A liquid storage tank 12 is also fixedly arranged on one side of the lifting plate 9. The liquid inside the liquid storage tank 12 is cutting fluid. In order to facilitate the addition and replenishment, a liquid adding pipe is provided at the top of the liquid storage tank 12 to facilitate the addition of the cutting fluid. The liquid storage tank 12 is connected to the piston cavity through a liquid inlet pipe 31. Check valves 30 are provided on both the liquid inlet pipe 31 and the liquid filling pipe 29. The check valve 30 on the liquid inlet pipe 31 only allows the cutting fluid in the liquid storage tank 12 to flow into the piston cavity, while the check valve 30 on the liquid filling pipe 29 only allows the cutting fluid in the piston cavity to flow into the temporary storage tank 11. In order to facilitate the supplementary spraying operation of the cutting fluid during the machining process, a collar 26 is sleeved in the middle of the crankshaft 25. A rotating member 27 is provided in the middle of the side wall of the collar 26. The end of the rotating member 27 is connected to the middle of the piston 32. For the rotating member 27, it can be composed of a connecting rod and a rotating block as Figure 5 described in the text. The double-axis motor 21 can work to drive the crankshaft 25 to rotate, and then cooperate with the rotating member 27 to drive the piston 32 to reciprocate inside the piston column 20.

[0034] During use, the dual-axis motor 21 operates to drive the rotating shaft 22 and the milling cutter 16 to rotate. At the same time, the lifting guide block 14 of the lifting block 13 slides downward in the lifting guide groove 10, and can drive the milling cutter 16 to move downward along the circular arc tooth line path, so as to process the circular arc tooth line. During the processing, the other end of the dual-axis motor 21 drives the main bevel gear 23 to rotate, and then can drive the driven bevel gear 24 and the crankshaft 25 to rotate. Cooperating with the collar 26 and the rotating member 27 can drive the piston 32 to reciprocate in the piston column 20. When the piston 32 moves towards one end of the crankshaft 25, cooperating with the one-way valve 30 on the liquid inlet pipe 31, the cutting fluid in the liquid storage tank 12 can be extracted into the piston cavity inside the piston column 20. When the piston 32 moves back towards the direction of the temporary storage tank 11, the cutting fluid inside the piston cavity can be added to the inside of the temporary storage tank 11 through the liquid filling pipe 29 and the one-way valve 30. Then, it is convenient for the cutting fluid to be sprayed out through the nozzle 18 under the liquid outlet pipe 17, and can lubricate and cool the processed area during the processing to ensure the quality and effect of the processing.

[0035] The above are only embodiments of the present invention. Specific technical solutions or common knowledge such as well-known characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to explain the content of the claims.

Claims

1. A processing device for large-scale circular arc tooth line cylindrical gears, comprising a processing table (1) and a milling cutter assembly, wherein the milling cutter assembly is used to process a gear body (2), and is characterized in that: The processing table (1) is provided with a rotating clamping mechanism, and the rotating clamping mechanism is fixedly connected to the gear body (2); The rotating clamping mechanism comprises a driving motor (35) arranged at an end of the processing table (1) away from the lifting plate (9), a mounting plate (3) being fixedly provided at the output end of the driving motor (35), a positioning table (34) matching the gear body (2) being provided at the top end of the mounting plate (3) so that the rotation axis of the positioning table (34) is vertical, a placing plate (42) is provided on the positioning table (34) through a center adjustment component, a hole matching the positioning table (34) is provided inside the placing plate (42), the gear body (2) is sleeved on the outside of the placing plate (42), and a center of gravity adjusting member (43) for adjusting the center of gravity of the gear body (2) is provided at the top end of the placing plate (42), the center of gravity adjusting member (43) being used to adjust the center of gravity of the placing plate (42) and the gear body (2) as a whole on the rotation axis of the positioning table (34), and adjustment holes (44) matching the center of gravity adjusting member (43) are provided at equal intervals on the circumferential side surface of the top end of the placing plate (42).

2. The processing equipment for large circular arc tooth line cylindrical gears according to claim 1, characterized in that: The center adjustment component comprises plug-in slots (45) equidistantly arranged on the inner wall of the hole of the placement plate (42), plug-in blocks (46) are inserted into the plug-in slots (45), the inner arc surfaces of the plug-in blocks (46) are provided with center adjustment plates (47), and the outer arc surface of the positioning platform (34) is equidistantly provided with plug-in positioning pieces (48) corresponding to the plug-in slots (45).

3. The processing equipment for large circular arc tooth line cylindrical gears according to claim 2, characterized in that: The bottom end of the mounting plate (3) is also provided with support guide rods (36) at equal distances, and the processing table (1) is provided with an annular guide groove (37) matching the support guide rods (36).

4. The processing equipment for large circular arc tooth line cylindrical gears according to claim 1, characterized in that: A lifting plate (9) is provided at one end of the processing table (1) via an adjustment mechanism, and the lifting plate (9) is provided with a milling cutter assembly, and the milling cutter assembly comprises a double-axis motor (21) fixedly arranged at the middle of the bottom end of the lifting plate (9), and rotating shafts (22) are fixedly provided at both ends of the output shaft of the double-axis motor (21), and the end of the rotating shaft (22) close to one end of the gear body (2) is fixedly connected to the milling cutter (16), and the end of the rotating shaft (22) away from the gear body (2) is connected to the flushing mechanism via a connecting mechanism. The connecting mechanism comprises a main bevel gear (23) fixedly connected to an end of a rotating shaft (22) away from one end of the gear body (2); a slave bevel gear (24) is meshed with one side of the main bevel gear (23); a rotating rod is fixedly provided in the middle of the slave bevel gear (24); the rotating rod penetrates the lifting plate (9) and extends to the top to which a crankshaft (25) is fixedly provided; the top end of the crankshaft (25) is connected to the horizontal section of the L-shaped plate (19) through a bearing; and the bottom of the vertical section of the L-shaped plate (19) is fixedly connected to the lifting plate (9).

5. The processing equipment for large circular arc tooth line cylindrical gears according to claim 4, characterized in that: The flushing mechanism comprises a temporary storage box (11) fixedly arranged on the lifting plate (9), a liquid outlet pipe (17) being fixedly arranged at one end of the temporary storage box (11), a nozzle (18) matching the milling cutter (16) being arranged below the liquid outlet pipe (17), and a liquid replenishing component being arranged at one end of the temporary storage box (11) away from the liquid outlet pipe (17).

6. The processing equipment for large circular arc tooth line cylindrical gears according to claim 5, characterized in that: The fluid replenishing assembly comprises fixed frames (28) equidistantly arranged on the lifting plate (9), a piston column (20) is fixedly arranged between the two fixed frames (28), a piston (32) is slidably arranged inside the piston column (20), a sealing ring (33) is sleeved on the outside of the piston (32) and is interference fit with the inner wall of the piston column (20), a piston cavity is formed between the interior of one end of the piston column (20) close to the temporary storage box (11) and the piston (32), the temporary storage box (11) and the piston cavity are connected via a liquid filling pipe (29), a liquid storage box (12) is also fixedly arranged on one side of the lifting plate (9), the liquid storage box (12) and the piston cavity are connected via a liquid inlet pipe (31), and a one-way valve (30) is provided on both the liquid inlet pipe (31) and the liquid filling pipe (29).

7. The processing equipment for large circular arc tooth line cylindrical gears according to claim 6, characterized in that: A sleeve (26) is sleeved on the middle of the crankshaft (25), a rotating member (27) is provided on the middle of the side wall of the sleeve (26), and an end of the rotating member (27) is connected to the middle of the piston (32).

8. The processing equipment for large circular arc tooth line cylindrical gears according to claim 1, characterized in that: The adjustment mechanism comprises a linear guide device (4) symmetrically arranged on a lifting plate (9), a guide slider (5) equidistantly slidably fitted on the linear guide device (4), a bottom plate (7) symmetrically provided at the top of the guide slider (5), a mounting clamp (6) provided on the bottom plate (7), a top plate (8) provided at the top of the mounting clamp (6), a vertical plate formed between the bottom plate (7), the mounting clamp (6) and the top plate (8) in the same vertical direction, a lifting guide groove (10) is provided on the side walls of the two vertical plates on the same guide slider (5) close to each other, a lifting guide block (14) slidably fitted in the lifting guide groove (10), a lifting block (13) fixedly provided between the two lifting guide blocks (14), and the lifting block (13) fixedly connected to the lifting plate (9) via a connecting rod (15).

9. The processing equipment for large circular arc tooth line cylindrical gears according to claim 8, characterized in that: The bottom plate (7) and the mounting clamp plate (6), and the mounting clamp plate (6) and the top plate (8) are connected via a mounting mechanism, wherein the mounting mechanism comprises mounting grooves (38) provided at the top and bottom ends of the mounting clamp plate (6), and mounting blocks (39) matching the mounting grooves (38) are fixedly provided at the bottom end of the top plate (8) and the top end of the bottom plate (7).

10. The processing equipment for large circular arc tooth line cylindrical gears according to claim 9, characterized in that: Positioning holes (41) are symmetrically formed on the side wall of the mounting block (39) and the side wall of the mounting clamping plate (6), and positioning columns (40) are inserted into the positioning holes (41).

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