Auxiliary device of planet wheel gear milling machine

Abstract

The utility model relates to the technical field of gear milling machines, in particular to an auxiliary device of a planet wheel gear milling machine. The gear hobbing fixture comprises a machine tool internal tray arranged in the gear milling machine, a detachable gear hobbing fixture is arranged on the machine tool internal tray, a fixed alignment assembly is arranged on the gear hobbing fixture, and a workpiece is arranged on the fixed alignment assembly. The single-jaw stroke of the clamping jaw is large, so that the clamping jaw can adapt to machining of various planet gears with different sizes, the application range of the device is greatly expanded, and the production flexibility and universality are improved. Meanwhile, a large-tonnage disc spring locking cylinder is adopted for end pressing, the height of a backing ring can be adjusted to adapt to the change of the height of the planet gear, the flexible adjusting mode can meet the machining requirements of planet gears of different specifications, and time and cost consumption caused by die or clamp replacement is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gear milling machines, in particular to an auxiliary device for a planetary gear milling machine. Background Technique

[0002] In the current transmission field, due to the differences in transmission torque, the sizes of planetary gears vary quite diversely. Although in the planetary gear processing and manufacturing industry, technologies such as imported high-speed gear milling machines, high-speed cutter heads, and single-piece self-centering fixtures have been adopted to improve production capacity. However, considering the production requirements of planetary gear parts with multiple varieties, large quantities, and diverse sizes, the above-mentioned technologies adopted by the industry can only improve the production capacity of the planetary gear rolling / milling process to a certain extent. To achieve a more significant increase in production capacity, there are still many problems. For example, additional equipment, tools, personnel, and site resources need to be added, which not only increases production costs but also brings challenges in management and scheduling, restricting the further development of the industry and a substantial increase in production efficiency. Content of the Utility Model

[0003] The purpose of the utility model is to provide an auxiliary device for a planetary gear milling machine to solve the problems raised in the background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution. It includes an internal machine tool tray arranged inside the gear milling machine. A detachable hobbing fixture is arranged on the internal machine tool tray. A fixed alignment component is arranged on the hobbing fixture, and a workpiece is arranged on the fixed alignment component.

[0005] Preferably, the internal machine tool tray includes a chassis arranged inside the gear milling machine. A quick-change joint is arranged on the side of the chassis. Several second zero-point positioning joints are arranged on the top of the chassis. Several second guide pins are also arranged on the chassis.

[0006] Preferably, the hobbing fixture includes a second support arranged on the chassis. Several second zero-point positioning parts are arranged at the bottom of the second support. The several second zero-point positioning parts are respectively connected to the several second zero-point positioning joints. Several guide grooves two are also opened at the positions corresponding to the several second guide pins at the bottom of the second support. The second guide pins are arranged in the guide grooves two. A slewing bearing is movably arranged on the top of the second support. An installation frame is arranged on one side of the second support. A motor reducer is arranged on the installation frame. The motor reducer is drivingly connected to the slewing bearing. A bottom plate is arranged on the top of the slewing bearing.

[0007] Preferably, several first guide pins are arranged on the bottom plate. Several first zero-point positioning joints are also arranged on the bottom plate. A gas-liquid slip ring is arranged in the middle of the bottom plate.

[0008] Preferably, the fixing and aligning component of the utility model comprises a first support arranged on the bottom plate. A plurality of first zero-point positioning members are arranged at the bottom of the first support, and the plurality of first zero-point positioning members are respectively connected to a plurality of first zero-point positioning joints. A plurality of first guiding grooves 1 are formed at the bottom of the first support corresponding to the positions of a plurality of first guiding pins, and the plurality of first guiding pins are respectively arranged in the plurality of first guiding grooves 1;

[0009] A guard plate is arranged at the top of the first support. A heightening sleeve is further arranged at the top of the first support. The heightening sleeve is located within the inner circle of the guard plate. A cushion ring is arranged on the guard plate, and a workpiece is placed on the cushion ring. A centering fixture housing is arranged at the top of the heightening sleeve. A plurality of claw seats are movably arranged within the centering fixture housing. A claw body is arranged on the side of each claw seat. A first disc spring locking oil cylinder is arranged within the heightening sleeve. A plurality of support arms are movably arranged at the top of the output end of the first disc spring locking oil cylinder, and the other ends of the plurality of support arms are respectively movably connected to the plurality of claw seats;

[0010] Preferably, a second pressure ring is pressed on the workpiece, and a first pressure ring is pressed on the top of the second pressure ring. A second disc spring locking oil cylinder is arranged at the top of the centering fixture housing. A screw rod is arranged at the top of the output end of the second disc spring locking oil cylinder. An end face pressing cover is sleeved on the screw rod, and the end face pressing cover is pressed on the top of the first pressure ring. A spherical washer is further sleeved on the screw rod. A nut is threadedly arranged on the screw rod, and the spherical washer abuts between the end face pressing cover and the nut.

[0011] Compared with the prior art, the above technical solution of the utility model has the following beneficial technical effects:

[0012] 1. The single-claw stroke of the clamping claw of the utility model is large. This design enables it to adapt to the processing of planetary gears of various different sizes, greatly expanding the applicable range of the device, and improving the flexibility and versatility of production. At the same time, the end pressure adopts a large-tonnage disc spring locking cylinder, and the height of the cushion ring can be adjusted to adapt to the change in the height of the planetary gear. This flexible adjustment method can meet the processing requirements of planetary gears of different specifications, reducing the time and cost consumption caused by replacing the mold or fixture.

[0013] 2. The utility model adopts a hydraulic disc spring locking cylinder to drive the connecting rod for three-jaw centering, and the disc spring locking cylinder pressurizes and unlocks. When the pressure is released, the disc spring rebounds to mechanically lock the piston rod. This automatic centering method not only improves the centering accuracy and speed, but also due to the reliability of mechanical locking, it can ensure the stable position of the workpiece during the processing, thereby improving the processing quality and accuracy.

[0014] 3. The utility model adopts a hydraulic disc spring locking cylinder to push the piston rod upward by applying pressure and pull the piston rod downward by the rebound of the disc spring when the pressure is relieved to mechanically tighten the nut for end pressing. This automated end pressing control method can accurately apply pressure, ensure the stability of the workpiece during the processing, and improve the processing accuracy and consistency.

[0015] 4. By preparing two sets of auxiliary equipment after installation, the utility model can achieve alternating operation during the milling process. When the workpiece in one set of equipment is being milled in the gear milling machine, the other set of equipment can synchronously install a new workpiece according to the installation steps. This operation method greatly reduces the idle time of the equipment, maximizes the utilization rate of the equipment, and thus significantly improves the overall production efficiency. Brief Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of one side of the whole of the utility model;

[0017] Figure 2 It is a schematic structural diagram of the other side of the whole of the utility model;

[0018] Figure 3 It is a schematic structural diagram of the reaction frame of the utility model;

[0019] Figure 4 It is a schematic structural diagram of the mold assembly of the utility model.

[0020] Reference Signs: Fixed alignment component 1, first support 10, guard plate 11, spacer ring 12, heightening sleeve 13, first disc spring locking oil cylinder 14, screw rod 15, end face gland 16, first pressure ring 17, second pressure ring 18, second disc spring locking oil cylinder 19, support arm 110, jaw seat 111, jaw body 112, first zero-point positioning part 113, first guide groove 114, centering fixture housing 115, nut 116, spherical washer 117, hobbing fixture 2, second support 20, first zero-point positioning joint 21, slewing bearing 22, bottom plate 23, mounting bracket 24, motor reducer 25, first guide pin 26, second zero-point positioning part 27, gas-liquid slip ring 28, second guide groove 29, internal machine tool tray 3, second guide pin 30, second zero-point positioning joint 31, chassis 32, quick-change joint 33, workpiece 4. Detailed Description of the Preferred Embodiment

[0021] To make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the specific embodiments and referring to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the utility model.

[0022] AsFigures 1-4 As shown in the figure, an auxiliary device for a planetary gear milling machine proposed by the present utility model includes an internal machine tool tray 3 disposed inside the milling machine. The chassis 32 of the internal machine tool tray 3 is located inside the milling machine, with a quick-change joint 33 provided on its side and several second zero-point positioning joints 31 and several second guide pins 30 provided on its top;

[0023] The second support 20 of the hobbing fixture 2 is disposed on the chassis 32. Several second zero-point positioning members 27 at the bottom of the second support 20 are connected to several second zero-point positioning joints 31 on the top of the chassis 32. Several guide grooves 29 corresponding to the positions of the second guide pins 30 on the chassis 32 are provided so that the second guide pins 30 can be inserted. The slewing bearing 22 on the top of the second support 20 is movably disposed and is driven by a motor reducer 25 mounted on a mounting frame 24 on one side of the second support 20. Several first guide pins 26 and several first zero-point positioning joints 21 are provided on the bottom plate 23 on the top of the slewing bearing 22, and a gas-liquid slip ring 28 is provided in the middle;

[0024] The first support 10 of the fixed alignment component 1 is disposed on the bottom plate 23. Several first zero-point positioning members 113 at the bottom of the first support 10 are connected to several first zero-point positioning joints 21 on the bottom plate 23. Several guide grooves 114 corresponding to the positions of the first guide pins 26 are provided for the first guide pins 26 to be inserted. A guard plate 11 and a heightening sleeve 13 are provided on the top of the first support 10. A workpiece 4 is placed on a gasket ring 12 inside the guard plate 11. Several arms 110 movably connected to the top of the output end of a first disc spring locking oil cylinder 14 inside the heightening sleeve 13 are respectively connected to several jaw seats 111 movably disposed inside a centering fixture housing 115. Jaw bodies 112 on the sides of the jaw seats 111 are used to fix the workpiece 4.

[0025] When performing milling operations, the first step is to install the fixed alignment component 1 onto the hobbing fixture 2. The specific operation is to accurately align several first zero-point positioning members 113 and several guide grooves 114 at the bottom of the fixed alignment group with several first zero-point positioning joints 21 and several first guide pins 26 respectively, and then complete precise docking and fixation (two sets of installed auxiliary equipment need to be prepared in advance);

[0026] Next, install the workpiece 4 onto the fixed alignment assembly 1. First, place the workpiece 4 on the gasket 12, then start the first disc spring locking cylinder 14 so that its output end drives several arms 110, prompting several claw seats 111 to move synchronously toward the top, so that several claws can be supported on the inner ring of the workpiece 4, and then adjust the position of the workpiece 4 to the center of the circle. After that, press the second pressure ring 18 and the first pressure ring 17 onto the workpiece 4 in turn, then put the end face pressure cover 16 on the screw 15, then put the spherical washer 117 on the screw 15, and finally tighten it with the nut 116 to ensure that the spherical washer 117 firmly supports the end face pressure cover 16, and retract and lock the second disc spring locking cylinder 19. At this point, the installation of the workpiece 4 is completed;

[0027] Finally, the entire assembly is hoisted onto the internal pallet 3 of the gear milling machine, so that the several second zero-point positioning members 27 and the several second guide grooves 29 at the bottom of the gear hobbing fixture 2 are accurately aligned with the several second zero-point positioning joints 31 and the several second guide pins 30 on the chassis 32, and then precisely installed and locked.

[0028] During the milling process, the motor reducer 25 is activated to drive the slewing bearing 22, which in turn rotates the fixed alignment assembly 1, and thus the workpiece 4, thereby coordinating the milling machine's operation. During the milling process, a new workpiece 4 can be installed on another set of auxiliary equipment according to the above steps. After the workpiece 4 inside the milling machine is completed, the entire unit can be lifted out and the second set of auxiliary equipment can be hoisted onto the milling machine to continue milling. This operation significantly improves operational efficiency.

[0029] It should be understood that the above-described specific embodiments of the present invention are merely illustrative of or explanation of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the scope of protection of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents of such scope and metes and bounds.

Claims

1. An auxiliary device for a planetary gear milling machine, comprising a machine tool internal tray (3) arranged in the gear milling machine, characterized in that: A detachable gear hobbing fixture (2) is provided on the internal tray (3) of the machine tool, a fixed alignment component (1) is provided on the gear hobbing fixture (2), and a workpiece (4) is provided on the fixed alignment component (1).

2. The planetary gear milling machine auxiliary device according to claim 1, characterized in that: The internal tray (3) of the machine tool comprises a chassis (32) arranged in the gear milling machine, a quick-change joint (33) is arranged on the side of the chassis (32), a plurality of second zero-point positioning joints (31) are arranged on the top of the chassis (32), and a plurality of second guide pins (30) are also arranged on the chassis (32).

3. The planetary gear milling machine auxiliary device according to claim 2, characterized in that: The gear hobbing fixture (2) includes a second support (20) arranged on a chassis (32), a plurality of second zero-point positioning members (27) are arranged at the bottom of the second support (20), and the plurality of second zero-point positioning members (27) are respectively connected to a plurality of second zero-point positioning joints (31), a plurality of guide grooves (29) are also opened at the bottom of the second support (20) corresponding to the positions of the plurality of second guide pins (30), and the second guide pins (30) are arranged in the guide grooves (29), a slewing support (22) is movably arranged at the top of the second support (20), a mounting frame (24) is arranged on one side of the second support (20), a motor reducer (25) is arranged on the mounting frame (24), the motor reducer (25) is connected to the slewing support (22), and a base plate (23) is arranged on the top of the slewing support (22).

4. The planetary gear milling machine auxiliary device according to claim 3, characterized in that: A plurality of first guide pins (26) are provided on the bottom plate (23), a plurality of first zero point positioning joints (21) are also provided on the bottom plate (23), and a gas-liquid slip ring (28) is provided in the middle of the bottom plate (23).

5. The planetary gear milling machine auxiliary device according to claim 4, characterized in that: The fixed alignment assembly (1) includes a first support (10) arranged on a base plate (23), a plurality of first zero-point positioning members (113) are arranged at the bottom of the first support (10), the plurality of first zero-point positioning members (113) are respectively connected to a plurality of first zero-point positioning joints (21), a plurality of guide grooves (114) are opened at the bottom of the first support (10) at positions corresponding to the plurality of first guide pins (26), and the plurality of first guide pins (26) are respectively arranged in the plurality of guide grooves (114); A guard plate (11) is provided on the top of the first support (10), and a heightening sleeve (13) is also provided on the top of the first support (10), and the heightening sleeve (13) is located in the inner circle of the guard plate (11), and a gasket (12) is provided on the guard plate (11), and a workpiece (4) is placed on the gasket (12), and a centering fixture shell (115) is provided on the top of the heightening sleeve (13), and a plurality of claw seats (111) are movably provided in the centering fixture shell (115), and a claw body (112) is provided on the side of each claw seat (111), and a first disc spring locking cylinder (14) is provided in the heightening sleeve (13), and a plurality of support arms (110) are movably provided on the top of the output end of the first disc spring locking cylinder (14), and the other ends of the plurality of support arms (110) are movably connected to the plurality of claw seats (111) respectively.

6. The planetary gear milling machine auxiliary device according to claim 5, characterized in that: A second pressure ring (18) is pressed onto the workpiece (4), and a first pressure ring (17) is pressed onto the top of the second pressure ring (18). A second disc spring locking oil cylinder (19) is provided on the top of the centering clamp housing (115), and a screw rod (15) is provided on the top of the output end of the second disc spring locking oil cylinder (19). An end face pressure cover (16) is sleeved on the screw rod (15), and the end face pressure cover (16) is pressed onto the top of the first pressure ring (17). A spherical washer (117) is also sleeved on the screw rod (15), and a nut (116) is threadedly provided on the screw rod (15), and the spherical washer (117) is abutted between the end face pressure cover (16) and the nut (116).

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