A large gear shaping machine automatic feeding and discharging platform system

Abstract

The application discloses a large gear shaping machine automatic feeding and discharging platform system, which comprises a gear shaping machine workbench and a feeding and discharging platform, wherein the feeding and discharging platform comprises: a part clamping platform, which is used for clamping unprocessed parts while processing parts on the gear shaping machine workbench; a part waiting platform, which receives processed parts from the gear shaping machine workbench through a longitudinal material changing execution mechanism; and a material changing auxiliary station, which receives processed parts from the part waiting platform through a transverse material changing execution mechanism, and meanwhile, the transverse material changing execution mechanism transfers unprocessed parts on the part clamping platform to the part waiting platform; the longitudinal material changing execution mechanism is reset after the transverse material changing execution mechanism is actuated, and the reset longitudinal material changing execution mechanism transfers the unprocessed parts on the part waiting platform to the gear shaping machine workbench; and the transverse material changing execution mechanism is reset to transfer the processed parts on the material changing auxiliary station to the part clamping platform for disassembling the processed parts. The application has the advantages of convenient clamping, accurate positioning, high part processing precision and the like.

Description

Technical Field

[0001] This invention relates to an automatic loading and unloading platform system, specifically to an automatic loading and unloading platform system for a large gear hobbing machine. Background Technology

[0002] Currently, large gear shaper machines process parts with a wide diameter range and heavy weight, with most parts weighing over 500 kg. Due to the special nature of these parts, it is difficult to use automatic centering and clamping fixtures. Usually, only manual alignment and manual clamping with pressure plates can be used (which is also extremely inconvenient and time-consuming). Moreover, it is difficult to use common material changing mechanisms, such as robotic arms. The only option is to lift the parts directly onto the gear shaper machine's worktable for clamping and processing. Because of the structure of the gear shaper machine's processing platform, components such as crankshafts, connecting rods, and cutting tools occupy a certain amount of space in the vertical direction of the processing platform, it is difficult to accurately place the workpiece onto the platform using a lifting method. This directly leads to inaccurate machining accuracy of the workpiece. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an automated loading and unloading platform system for large gear hobbing machines that is simple to operate, easy to clamp, and has high machining accuracy. The technical solution to the problem addressed by this invention is as follows:

[0004] An automatic loading and unloading platform system for a large gear hobbing machine includes a gear hobbing machine worktable. The system is characterized by a loading and unloading platform with a supporting base placed in front of the worktable. This loading and unloading platform includes:

[0005] A parts clamping platform is used to clamp unprocessed parts while machining parts on the gear shaper machine's worktable.

[0006] A parts waiting platform receives parts processed by the gear hobbing machine's worktable via a longitudinal material changing actuator;

[0007] A material changing auxiliary station receives processed parts from the parts waiting platform through a horizontal material changing actuator, while the horizontal material changing actuator transfers unprocessed parts from the parts clamping platform to the parts waiting platform.

[0008] The longitudinal material changing actuator resets after the transverse material changing actuator operates. During the reset, it transfers the unprocessed parts located on the parts waiting platform to the gear hoisting machine worktable. The transverse material changing actuator resets and transfers the processed parts on the material changing auxiliary station to the parts clamping platform for disassembly of the processed parts.

[0009] Preferably, the worktable of the gear hobbing machine has a rotating spindle below it, with several centering conical shafts arranged circumferentially on the spindle's axial surface. A part positioning seat is mounted on the worktable guide rail, which is positioned above the spindle's axial surface via a hydraulic cylinder located in the middle of the spindle. The positioning seat has an inner cone corresponding to the centering conical shaft. The part waiting platform is mounted on a waiting rotating seat via a waiting guide rail, which is mounted on a support base. When the waiting rotating seat rotates to the docking position with the gear hobbing machine's worktable, the part positioning seat can move between the two guide rails via a longitudinal material changing actuator.

[0010] Preferably, a pressure plate is installed on the part positioning seat for pressing the part.

[0011] Preferably, the positioning seat is machined with a slot, the two sides of the worktable guide rail protrude and cooperate with the slot of the positioning seat, and multiple vertically stressed rollers are installed side by side on the protruding part; several horizontal rollers are installed on both sides of the worktable guide rail in the horizontal direction.

[0012] Preferably, the part clamping platform includes a clamping positioning seat, a clamping rotating seat is provided below the clamping positioning seat, a clamping cylinder is installed in the clamping rotating seat, and a clamping guide rail is provided on the support base corresponding to the clamping positioning seat, and the clamping guide rail is fixed on the clamping cylinder.

[0013] Preferably, the upper surface of the clamping rotary seat is provided with a clamping positioning cone shaft, and the bottom of the clamping positioning seat is provided with a clamping positioning inner cone that matches the clamping positioning cone shaft.

[0014] Preferably, the longitudinal material changing actuator includes a longitudinal servo motor, a longitudinal guide rod driven by the longitudinal servo motor lead screw, and a telescopic longitudinal support sleeved on the guide rod.

[0015] Preferably, the transverse material changing actuator includes a transverse servo motor, a transverse guide rod driven by the transverse servo motor lead screw, and a retractable transverse support sleeved on the transverse guide rod.

[0016] Preferably, a lifting and loading platform is also provided on one side of the parts clamping platform; when the lifting and loading platform is not started to load materials, the platform surface of the lifting and loading platform is level with the ground, and after the lifting and loading platform is started to load materials, the platform surface of the lifting and loading platform is level with the parts clamping platform; the lifting and loading platform includes a lifting base and a loading platform plate disposed on the lifting base.

[0017] Preferably, the lifting frames on both sides of the loading platform are provided with sliding rail grooves; a corresponding sliding rail groove is provided on the parts clamping platform, and the bottom of the corresponding sliding rail groove is fixed to a lifting cylinder; a movable platform is placed on the loading platform, and the bottom of the movable platform is provided with casters. When the lifting loading platform is activated to raise the casters to the height, the movable platform can slide from the lifting base to the side to the ground.

[0018] The beneficial effects of the present invention are as follows: Compared with the prior art, the technical solution of the present invention is designed for the characteristics of large size and heavy weight of the parts processed by large gear hobbing machines, fills the gap of automatic loading and unloading of large gear hobbing machines, and can be operated by a single person. It has the advantages of convenient clamping, accurate positioning, and high precision of parts processing. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a top view of the automatic loading and unloading platform system for a large gear hobbing machine according to the present invention;

[0021] Figure 2 for Figure 1 AA cross-sectional view;

[0022] Figure 3 for Figure 2 Partial cross-sectional view of BB;

[0023] Figure 4 for Figure 1 CC cross-sectional view;

[0024] Figure 5 This is a schematic diagram of the principle structure of the longitudinal material changing actuator and the transverse material changing actuator described in this invention; Figure 6 This is a schematic diagram of the structure of the material lifting platform described in this invention. Detailed Implementation

[0025] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, that is, to provide numerous specific details in order to offer a more thorough understanding of the present invention. However, those skilled in the art will recognize that the present invention can be practiced without one or more of these details. In these examples, to avoid confusion with the present invention, some technical features well-known in the art have not been described.

[0026] It should be understood that the present invention can be implemented in different forms and should not be construed as being limited to the embodiments set forth herein. Therefore, these are merely examples and should not be used to limit the scope of protection of the present invention.

[0027] Additionally, it should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0028] An automatic loading and unloading platform system for a large gear hoisting machine includes a gear hoisting machine worktable 1. A loading and unloading platform with a supporting base 7 is placed in front of the worktable 1. The loading and unloading platform includes: a part clamping platform 2 for clamping unprocessed parts while processing parts on the worktable 1; a part waiting platform 3 for receiving processed parts from the worktable 1 via a longitudinal material changing actuator 5; and a material changing auxiliary station 4 for receiving processed parts from the part waiting platform 3 via a transverse material changing actuator 6, while simultaneously transferring unprocessed parts from the part clamping platform 2 to the part waiting platform 3. The longitudinal material changing actuator 5 resets after the transverse material changing actuator 6 is activated, transferring unprocessed parts from the part waiting platform 3 to the worktable 1 during reset. The transverse material changing actuator 6 then transfers processed parts from the material changing auxiliary station 4 to the part clamping platform 2 for disassembly of the processed parts.

[0029] During implementation, since the parts being processed are mostly larger than 500KG, the support base 7 is cast to provide sufficient rigidity to support the parts clamping platform 2, the parts waiting platform 3, and the material changing auxiliary station 4, as well as other related parts and components.

[0030] Furthermore, as an improvement to the present invention, the worktable 1 of the gear hobbing machine has a rotating spindle (not shown in the figure) below it. Several centering conical shafts 11 are provided in the circumferential direction of the rotating spindle. A part positioning seat 12 is installed on the worktable guide rail 13. The worktable guide rail 13 is supported above the rotating spindle by a hydraulic cylinder 14 located in the middle of the rotating spindle. The part positioning seat 12 is provided with an inner cone 15 corresponding to the centering conical shaft 11. The part waiting platform 3 is installed on the waiting rotating seat 32 by the waiting guide rail 31. The waiting rotating seat 32 is installed on the support base 7. The waiting servo motor 33 can drive the waiting rotating seat 32 to rotate. When the waiting rotating seat 32 rotates to the docking state with the worktable 1 of the gear hobbing machine, the part positioning seat 12 can move between the two guide rails via the longitudinal material changing actuator 5.

[0031] In implementation, three centering cone shafts 11 are selected and evenly distributed along the circumferential direction of the rotating spindle surface of the worktable. The centering cone shafts 11 are matched with the inner cone 15 for positioning.

[0032] When the part is being hobbing, the hydraulic cylinder 14 drives the part positioning seat 12 to be firmly fixed on the worktable 1 of the hobbing machine, and the centering cone shaft 11 makes the center of the part align with the center of the worktable. After the machining is completed, the hydraulic cylinder 14 lifts the part positioning seat 12 so that it is completely separated from the centering cone shaft 11, and at the same time, the worktable guide rail 13 and the waiting guide rail 31 in the part waiting platform 3 are at the same height and in the same direction. This facilitates the movement of the part positioning seat 12 and the part A and other parts on it along the docking track formed by the two guide rails to the part waiting platform 3.

[0033] Furthermore, as an improvement to the present invention, a pressure plate 16 is installed on the part positioning seat 12 for pressing part A.

[0034] During implementation, the centerline axis of part A is aligned with the centerline axis of the centering cone shaft 11 on the circumference of the gear hobbing machine worktable 1.

[0035] Furthermore, as an improvement to the present invention, the part positioning seat 12 is machined with a slot (not shown in the figure), and the worktable guide rail 13 protrudes on both sides to cooperate with the slot of the part positioning seat 12, and multiple vertically bearing rollers 17 are installed side by side on the protruding part; several horizontal rollers 18 are installed on both sides of the worktable guide rail 13 in the horizontal direction. In implementation, the rollers 17 need to bear the weight of the parts mounted on them and ensure that the part positioning seat 12 can slide easily. The upper surface of the rollers 17 contacts the part positioning seat 12, and the lower surface must not protrude from the lower surface of the worktable guide rail 13. This is beneficial for the worktable cylinder 14 to firmly press the part positioning seat 12 onto the worktable surface when it is subjected to downward force. The multiple horizontal rollers 18 installed on both sides of the worktable guide rail 13 in the horizontal direction can ensure that the parts of the part positioning seat 12 and above can be smoothly moved from the gear hobbing machine worktable 1 to the waiting guide rail 31 in the part waiting platform 3.

[0036] Furthermore, as an improvement to the present invention, the part clamping platform 2 includes a clamping positioning seat 21, a clamping rotating seat 22 is provided below the clamping positioning seat 21, a clamping cylinder 23 is installed in the clamping rotating seat 22, and the support base 7 is provided with a clamping guide rail 24 corresponding to the clamping positioning seat 21, and the clamping guide rail 24 is fixed on the clamping cylinder 23.

[0037] During implementation, the clamping servo motor 27 controls the rotation of the clamping rotary table 22.

[0038] Furthermore, as an improvement to the present invention, the upper surface of the clamping rotary seat 22 is provided with a clamping positioning cone shaft 25, and the bottom of the clamping positioning seat 21 is provided with a clamping positioning inner cone 26 that matches the clamping positioning cone shaft 25. In implementation, the clamping rotary seat 22 is also paired with the clamping positioning cone shaft 25 and the clamping positioning inner cone 26 of the clamping positioning seat 21 on the worktable spindle. When manual loading and unloading is performed at the part clamping platform 2, the clamping cylinder 23 moves down to make the clamping positioning seat 21 firmly pressed onto the clamping rotary seat 22 by the clamping positioning cone shaft 25. The clamping servo motor 27 can drive the clamping rotary seat 22 and the above mounting parts to rotate, and the operator can align and install parts and disassemble parts on the clamping positioning seat 21. When the clamping cylinder 23 rises, it is necessary to ensure that the relevant clamping guide rails 24 at the three workstations are at the same height.

[0039] Furthermore, as an improvement to the present invention, the longitudinal material changing actuator 5 includes a longitudinal servo motor 51, a longitudinal guide rod 53 driven by the longitudinal servo motor lead screw 52, ​​and a telescopic longitudinal support 54 sleeved on the guide rod.

[0040] During implementation, the longitudinal material changing actuator 5 actuates, and the CNC system ensures that the waiting guide rails 31 at the gear hoisting machine worktable 1 and the part waiting platform 3 are in the same horizontal direction. Then, the telescopic longitudinal support 54 extends the support into a fixed notch 19 on the part positioning seat 12. The longitudinal servo motor 51 drives the telescopic longitudinal support 54 via the lead screw 52 to move the part positioning seat 12 from the gear hoisting machine worktable 1 to the part waiting platform 3 on the longitudinal guide rod 53. The telescopic longitudinal support 54 then retracts. Then, under the action of the waiting servo motor 33, the waiting rotating seat 32 (together with the part positioning seat 12 on it) at the part waiting platform 3 rotates 90 degrees, so that the waiting guide rail 31 on the part waiting platform 3, the part clamping platform 2, and the station guide rail 41 on the material changing auxiliary station 4 are in the same vertical direction.

[0041] Furthermore, as an improvement to the present invention, the transverse material changing actuator 6 includes a transverse servo motor 61, a transverse guide rod 63 driven by the transverse servo motor lead screw 62, and a retractable transverse support 64 sleeved on the transverse guide rod 63.

[0042] During implementation, the retractable horizontal support 64 extends the support into the notch on the rotating seat 32 of the part waiting platform 3. The horizontal servo motor 61 drives the retractable horizontal support 64 via the lead screw 62 to move the rotating seat 32 of the part waiting platform 3 to the material changing auxiliary station 4 on the horizontal guide rod 63. The retractable horizontal support 64 retracts and moves to the part clamping platform 2, extending the retractable horizontal support 64 into the clamping positioning seat 21 on the part clamping platform 2. It is then moved to the part waiting platform 3 by the horizontal material changing actuator 6. The clamping positioning seat 21 is reversed 90 degrees and aligned with the worktable guide rail 13 using the clamping guide rail 24. The vertical material changing actuator 5 sends the part positioning seat 12 to the gear hobbing machine worktable 1 for processing.

[0043] During part processing, the longitudinal material changing actuator 5 moves the positioning seat on the material changing auxiliary station 4 to the part clamping platform 2 to perform related manual part loading and unloading operations.

[0044] Furthermore, as an improvement to the present invention, a lifting loading platform 8 is also provided on one side of the parts clamping platform; when the lifting loading platform 8 is not started to load materials, the platform surface of the lifting loading platform 8 is level with the ground, and after the lifting loading platform 8 starts to load materials, the platform surface of the lifting loading platform 8 is level with the parts clamping platform 2; the lifting loading platform 8 includes a lifting base 81 and a loading platform 82 disposed on the lifting base 81.

[0045] During implementation, part A can be manually moved onto the loading platform 82, such as by rolling. Then, the hydraulic oil pump 84 of the lifting base 81 is started. The hydraulic oil pump 84 is pushed up, and the loading platform 82 rises to be level with the part clamping platform 2. Then, part A is pushed onto the part clamping platform 2.

[0046] Furthermore, as an improvement to the present invention, the lifting frames on both sides of the loading platform 82 are provided with sliding rail grooves 83; corresponding to the sliding rail grooves 83, a receiving sliding rail groove (not shown) is provided on the parts clamping platform, and the bottom of the receiving sliding rail groove is fixed to a lifting cylinder. A movable platform 85 is placed on the loading platform, and the bottom of the movable platform 85 is provided with casters 86. When the lifting loading platform 8 is started and rises to the height of the casters 86, the movable platform 85 can slide to the side on the ground from the lifting base 81.

[0047] In practice, multiple movable platforms 85 are used. After other workers place part A on the loading platform 82 using tools, the platform is placed next to the gear hoist. When in use, the movable platform 85 is moved to the loading platform, and then the lifting base 81 is opened to make the loading platform 82 level with the part clamping platform 2. Then, the movable platform 85 is moved from the receiving slide rail groove to the clamping positioning seat 21 of the part clamping platform 2. Then, the bottom of the receiving slide rail groove is lowered by the lifting cylinder, and the movable platform 85 is pressed on the clamping positioning seat 21. Then, the part is clamped by the operator on the clamping positioning seat 21.

[0048] Similarly, after the parts are processed, the lifting cylinder rises, so that the bottom of the corresponding slide rail groove contacts the universal wheel 86. Then, the movable platform 85 is moved from the clamping positioning seat 21 on the parts clamping platform 2 back to the loading platform 82. The lifting base 81 is lowered to the height of the universal wheel 86 from the ground. Then, the movable platform 85 is moved out of the loading platform 82. Then, the movable platform 85 containing the unprocessed parts A is moved back to the loading platform 82. The operation can be repeated along the platform system.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. An automatic loading and unloading platform system for a large gear hobbing machine, comprising a gear hobbing machine worktable, characterized in that: A loading / unloading platform with a supporting base is placed in front of the gear hobbing machine's worktable. This loading / unloading platform includes: A parts clamping platform is used to clamp unprocessed parts while processing parts on the gear shaper machine's worktable. A parts waiting platform receives parts processed by the gear hobbing machine's worktable via a longitudinal material changing actuator; A material changing auxiliary station receives processed parts from the parts waiting platform through a horizontal material changing actuator, while the horizontal material changing actuator transfers unprocessed parts from the parts clamping platform to the parts waiting platform. The longitudinal material changing actuator resets after the transverse material changing actuator operates. During the reset, it transfers the unprocessed parts located on the parts waiting platform to the gear hoisting machine worktable. The transverse material changing actuator resets and transfers the processed parts on the material changing auxiliary station to the parts clamping platform for disassembly of the processed parts. Below the gear hobbing machine's worktable is a rotating spindle. Several centering conical shafts are arranged circumferentially on the upper surface of the rotating spindle. A part positioning seat is mounted on the worktable guide rail. The worktable guide rail is supported above the upper surface of the rotating spindle by a hydraulic cylinder located in the middle of the rotating spindle. The part positioning seat has an inner cone corresponding to the centering conical shaft. The part clamping platform includes a clamping positioning seat, below which is a clamping rotating seat. A clamping hydraulic cylinder is installed inside the clamping rotating seat. A clamping guide rail is provided on the support base corresponding to the clamping positioning seat, and the clamping guide rail is fixed to the clamping hydraulic cylinder. The part waiting platform is mounted on the waiting rotating seat via the waiting guide rail. The waiting rotating seat is mounted on the support base. When the waiting rotating seat rotates to the docking state with the gear hobbing machine's worktable, the part positioning seat can move between the worktable guide rail and the waiting guide rail via a longitudinal material changing actuator.

2. The automatic loading and unloading platform system for a large gear hobbing machine according to claim 1, characterized in that: A pressure plate is installed on the part positioning seat to clamp the part.

3. The automatic loading and unloading platform system for a large gear hobbing machine according to claim 1, characterized in that: The part positioning seat is machined with a slot, and the two sides of the worktable guide rail protrude to cooperate with the slot of the part positioning seat. Multiple vertically loaded rollers are installed side by side on the protruding parts. Several horizontal rollers are installed on both sides of the worktable guide rail in the horizontal direction.

4. The automatic loading and unloading platform system for a large gear hobbing machine according to claim 1, characterized in that: The upper surface of the clamping rotary seat is provided with a clamping and positioning cone shaft, and the bottom of the clamping and positioning seat is provided with a clamping and positioning inner cone that matches the clamping and positioning cone shaft.

5. The automatic loading and unloading platform system for a large gear hobbing machine according to claim 1, characterized in that: The longitudinal material changing actuator includes a longitudinal servo motor, a telescopic longitudinal support driven by a longitudinal servo motor lead screw, and a longitudinal guide rod that provides guidance for the telescopic longitudinal support.

6. The automatic loading and unloading platform system for a large gear hobbing machine according to claim 1, characterized in that: The transverse material changing actuator includes a transverse servo motor, a retractable transverse support driven by the transverse servo motor lead screw, and a transverse guide rod that provides guidance for the retractable transverse support.

7. The automatic loading and unloading platform system for a large gear hobbing machine according to claim 1, characterized in that: A lifting loading platform is also provided on one side of the parts clamping platform; when the lifting loading platform is not started, the platform surface of the lifting loading platform is level with the ground; after the lifting loading platform is started, the platform surface of the lifting loading platform is level with the parts clamping platform; the lifting loading platform includes a lifting base and a loading platform plate set on the lifting base.

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